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The Changing Nature of Russia’s Military Strategy and Its Tactical Application

Invitation Only Research Event

12 November 2019 - 4:00pm to 5:30pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Oscar Jonsson, Director, Stockholm Free World Forum (Frivärld)
Mathieu Boulègue, Research Fellow, Russia and Eurasia Programme, Chatham House
Chair: ​Alice Billon-Galland, Research Associate, Europe Programme, Chatham House

Russia’s military strategy is increasingly blurring the boundaries between war and peace. As the nature of warfare changes, the Kremlin is adapting its strategies to pursue conflict, especially through non-military means - below the threshold of armed violence. 

Russian military tactics are often mistaken for strategy in the West. Oscar Jonson, author of The Russian Understanding of War, will talk through this debate and explore how the Russian leadership now understands military strategy in the context of modern warfare. Mathieu Boulègue will address the more operational aspects of contemporary warfare for Russia, notably grey zone operations. 

Department/project

Anna Morgan

Administrator, Ukraine Forum
+44 (0)20 7389 3274




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Russia's Imperial Nostalgia: Implications for the West

Invitation Only Research Event

31 January 2020 - 11:00am to 12:30pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Sergei Medvedev, Professor, Faculty of Social Sciences, Higher School of Economics (Moscow)

Vladimir Putin’s goal of restoring Russia’s status as a great power has led to an aggressive foreign policy and confrontation with its immediate neighbours as well as Western countries.

Sergei Medvedev, author of The Return of the Russian Leviathan, will discuss the forces shaping Russian politics and society today as well as how a nostalgia for empire – still widespread in contemporary Russia - has shaped Moscow’s foreign policy.

Attendance at this event is by invitation only.

Event attributes

Chatham House Rule

Anna Morgan

Administrator, Ukraine Forum
+44 (0)20 7389 3274




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A nematode sterol C4{alpha}-methyltransferase catalyzes a new methylation reaction responsible for sterol diversity [Research Articles]

Primitive sterol evolution plays an important role in fossil record interpretation and offers potential therapeutic avenues for human disease resulting from nematode infections. Recognizing that C4-methyl stenol products [8(14)-lophenol] can be synthesized in bacteria while C4-methyl stanol products (dinosterol) can be synthesized in dinoflagellates and preserved as sterane biomarkers in ancient sedimentary rock is key to eukaryotic sterol evolution. In this regard, nematodes have been proposed to convert dietary cholesterol to 8(14)-lophenol by a secondary metabolism pathway that could involve sterol C4 methylation analogous to the C2 methylation of hopanoids (radicle-type mechanism) or C24 methylation of sterols (carbocation-type mechanism). Here, we characterized dichotomous cholesterol metabolic pathways in Caenorhabditis elegans that generate 3-oxo sterol intermediates in separate paths to lophanol (4-methyl stanol) and 8(14)-lophenol (4-methyl stenol). We uncovered alternate C3-sterol oxidation and 7 desaturation steps that regulate sterol flux from which branching metabolite networks arise, while lophanol/8(14)-lophenol formation is shown to be dependent on a sterol C4α-methyltransferse (4-SMT) that requires 3-oxo sterol substrates and catalyzes a newly discovered 3-keto-enol tautomerism mechanism linked to S-adenosyl-l-methionine-dependent methylation. Alignment-specific substrate-binding domains similarly conserved in 4-SMT and 24-SMT enzymes, despite minimal amino acid sequence identity, suggests divergence from a common, primordial ancestor in the evolution of methyl sterols. The combination of these results provides evolutionary leads to sterol diversity and points to cryptic C4-methyl steroidogenic pathways of targeted convergence that mediate lineage-specific adaptations.­­




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Quantification of bile acids: a mass spectrometry platform for studying gut microbe connection to metabolic diseases [Research Articles]

Bile acids (BAs) serve multiple biological functions, ranging from the absorption of lipids and fat-soluble vitamins to serving as signaling molecules through the direct activation of dedicated cellular receptors. Synthesized by both host and microbial pathways, BAs are increasingly understood as participating in the regulation of numerous pathways relevant to metabolic diseases, including lipid and glucose metabolism, energy expenditure, and inflammation. Quantitative analyses of BAs in biological matrices can be problematic due to their unusual and diverse physicochemical properties, making optimization of a method that shows good accuracy, precision, efficiency of extraction, and minimized matrix effects across structurally distinct human and murine BAs challenging. Herein we develop and clinically validate a stable-isotope-dilution LC/MS/MS method for the quantitative analysis of numerous primary and secondary BAs in both human and mouse biological matrices. We also utilize this tool to investigate gut microbiota participation in the generation of structurally specific BAs in both humans and mice. We examine circulating levels of specific BAs and in a clinical case-control study of age- and gender-matched type 2 diabetes mellitus (T2DM) versus nondiabetics. BAs whose circulating levels are associated with T2DM include numerous 12α-hydroxyl BAs (taurocholic acid, taurodeoxycholic acid, glycodeoxycholic acid, deoxycholic acid, and 3-ketodeoxycholic acid), while taurohyodeoxycholic acid was negatively associated with diabetes. The LC/MS/MS-based platform described should serve as a robust, high-throughput investigative tool for studying the potential involvement of structurally specific BAs and the gut microbiome on both physiological and disease processes.




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Separation of postprandial lipoproteins: improved purification of chylomicrons using an ApoB100 immunoaffinity method [Methods]

Elevated levels of triglyceride-rich lipoproteins (TRLs), both fasting and postprandial, are associated with increased risk for atherosclerosis. However, guidelines for treatment are defined solely by fasting lipid levels, even though postprandial lipids may be more informative. In the postprandial state, circulating lipids consist of dietary fat transported from the intestine in chylomicrons (CMs; containing ApoB48) and fat transported from the liver in VLDL (containing ApoB100). Research into the roles of endogenous versus dietary fat has been hindered because of the difficulty in separating these particles by ultracentrifugation. CM fractions have considerable contamination from VLDL (purity, 10%). To separate CMs from VLDL, we produced polyclonal antibodies against ApoB100 and generated immunoaffinity columns. TRLs isolated by ultracentrifugation of plasma were applied to these columns, and highly purified CMs were collected (purity, 90–94%). Overall eight healthy unmedicated adult volunteers (BMI, 27.2 ± 1.4 kg/m2; fasting triacylglycerol, 102.6 ± 19.5 mg/dl) participated in a feeding study, which contained an oral stable-isotope tracer (1-13C acetate). We then used this technique on plasma samples freshly collected during an 8 h human feeding study from a subset of four subjects. We analyzed fractionated lipoproteins by Western blot, isolated and derivatized triacylglycerols, and calculated fractional de novo lipogenesis. The results demonstrated effective separation of postprandial lipoproteins and substantially improved purity compared with ultracentrifugation protocols, using the immunoaffinity method. This method can be used to better delineate the role of dietary sugar and fat on postprandial lipids in cardiovascular risk and explore the potential role of CM remnants in atherosclerosis.




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Development of a sensitive and quantitative method for the identification of two major furan fatty acids in human plasma [Methods]

This article focuses on the establishment of an accurate and sensitive quantitation method for the analysis of furan fatty acids. In particular, the sensitivity of GC/MS and UPLC/ESI/MS/MS was compared for the identification and quantification of furan fatty acids. Different methylation methods were tested with respect to GC/MS analysis. Special attention needs to be paid to the methylation of furan fatty acids, as acidic catalysts might lead to the degradation of the furan ring. GC/MS analysis in full-scan mode demonstrated that the limit of quantitation was 10 μM. UPLC/ESI/MS/MS in multiple reaction monitoring mode displayed a higher detection sensitivity than GC/MS. Moreover, the identification of furan fatty acids with charge-reversal derivatization was tested in the positive mode with two widely used pyridinium salts. Significant oxidation was unexpectedly observed using N-(4-aminomethylphenyl) pyridinium as a derivatization agent. The formed 3-acyl-oxymethyl-1-methylpyridinium iodide derivatized by 2-bromo-1-methylpyridinium iodide and 3-carbinol-1-methylpyridinium iodide improved the sensitivity more than 2,000-fold compared with nonderivatization in the negative mode by UPLC/ESI/MS/MS. This charge-reversal derivatization enabled the targeted quantitation of furan fatty acids in human plasma. Thus, it is anticipated that this protocol could greatly contribute to the clarification of pathological mechanisms related to furan fatty acids and their metabolites.




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SSO and other putative inhibitors of FA transport across membranes by CD36 disrupt intracellular metabolism, but do not affect FA translocation [Research Articles]

Membrane-bound proteins have been proposed to mediate the transport of long-chain FA (LCFA) transport through the plasma membrane (PM). These proposals are based largely on reports that PM transport of LCFAs can be blocked by a number of enzymes and purported inhibitors of LCFA transport. Here, using the ratiometric pH indicator (2',7'-bis-(2-carboxyethyl)-5-(and-6-)-carboxyfluorescein and acrylodated intestinal FA-binding protein-based dual fluorescence assays, we investigated the effects of nine inhibitors of the putative FA transporter protein CD36 on the binding and transmembrane movement of LCFAs. We particularly focused on sulfosuccinimidyl oleate (SSO), reported to be a competitive inhibitor of CD36-mediated LCFA transport. Using these assays in adipocytes and inhibitor-treated protein-free lipid vesicles, we demonstrate that rapid LCFA transport across model and biological membranes remains unchanged in the presence of these purported inhibitors. We have previously shown in live cells that CD36 does not accelerate the transport of unesterified LCFAs across the PM. Our present experiments indicated disruption of LCFA metabolism inside the cell within minutes upon treatment with many of the "inhibitors" previously assumed to inhibit LCFA transport across the PM. Furthermore, using confocal microscopy and a specific anti-SSO antibody, we found that numerous intracellular and PM-bound proteins are SSO-modified in addition to CD36. Our results support the hypothesis that LCFAs diffuse rapidly across biological membranes and do not require an active protein transporter for their transmembrane movement.




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Lipid rafts as signaling hubs in cancer cell survival/death and invasion: implications in tumor progression and therapy [Thematic Reviews]

Cholesterol/sphingolipid-rich membrane domains, known as lipid rafts or membrane rafts, play a critical role in the compartmentalization of signaling pathways. Physical segregation of proteins in lipid rafts may modulate the accessibility of proteins to regulatory or effector molecules. Thus, lipid rafts serve as sorting platforms and hubs for signal transduction proteins. Cancer cells contain higher levels of intracellular cholesterol and lipid rafts than their normal non-tumorigenic counterparts. Many signal transduction processes involved in cancer development (insulin-like growth factor system and phosphatidylinositol 3-kinase-AKT) and metastasis [cluster of differentiation (CD)44] are dependent on or modulated by lipid rafts. Additional proteins playing an important role in several malignant cancers (e.g., transmembrane glycoprotein mucin 1) are also being detected in association with lipid rafts, suggesting a major role of lipid rafts in tumor progression. Conversely, lipid rafts also serve as scaffolds for the recruitment and clustering of Fas/CD95 death receptors and downstream signaling molecules leading to cell death-promoting raft platforms. The partition of death receptors and downstream signaling molecules in aggregated lipid rafts has led to the formation of the so-called cluster of apoptotic signaling molecule-enriched rafts, or CASMER, which leads to apoptosis amplification and can be pharmacologically modulated. These death-promoting rafts can be viewed as a linchpin from which apoptotic signals are launched. In this review, we discuss the involvement of lipid rafts in major signaling processes in cancer cells, including cell survival, cell death, and metastasis, and we consider the potential of lipid raft modulation as a promising target in cancer therapy.




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Commentary on SSO and other putative inhibitors of FA transport across membranes by CD36 disrupt intracellular metabolism, but do not affect fatty acid translocation [Commentaries]




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Problem Notes for SAS®9 - 60332: A SAS 9.4 installation in Update mode notifies you about unwritable files in the "SASHome\SASWebApplicationServer" directory

When you run SAS Deployment Wizard to install or update SAS 9.4 software, the file system is examined. If any files that the wizard needs to delete are found to be locked, they are reported as unwritable f




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Problem Notes for SAS®9 - 65904: SAS Federation Server stops responding when you run queries against X_OBJECT_PRIVILEGES in SYSCAT and the queries run for hours

The select * from "SYSCAT"."SYSCAT"."X_EFFECTIVE_OBJECT_PRIVILEGES" query runs for hours. In this scenario, SAS Federation Server stops responding, making it unavailable for use. Restarting SAS Federation Server solves t




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Autoimmune complications of immunotherapy: pathophysiology and management




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Noncatalytic Bruton's tyrosine kinase activates PLC{gamma}2 variants mediating ibrutinib resistance in human chronic lymphocytic leukemia cells [Membrane Biology]

Treatment of patients with chronic lymphocytic leukemia (CLL) with inhibitors of Bruton's tyrosine kinase (BTK), such as ibrutinib, is limited by primary or secondary resistance to this drug. Examinations of CLL patients with late relapses while on ibrutinib, which inhibits BTK's catalytic activity, revealed several mutations in BTK, most frequently resulting in the C481S substitution, and disclosed many mutations in PLCG2, encoding phospholipase C-γ2 (PLCγ2). The PLCγ2 variants typically do not exhibit constitutive activity in cell-free systems, leading to the suggestion that in intact cells they are hypersensitive to Rac family small GTPases or to the upstream kinases spleen-associated tyrosine kinase (SYK) and Lck/Yes-related novel tyrosine kinase (LYN). The sensitivity of the PLCγ2 variants to BTK itself has remained unknown. Here, using genetically-modified DT40 B lymphocytes, along with various biochemical assays, including analysis of PLCγ2-mediated inositol phosphate formation, inositol phospholipid assessments, fluorescence recovery after photobleaching (FRAP) static laser microscopy, and determination of intracellular calcium ([Ca2+]i), we show that various CLL-specific PLCγ2 variants such as PLCγ2S707Y are hyper-responsive to activated BTK, even in the absence of BTK's catalytic activity and independently of enhanced PLCγ2 phospholipid substrate supply. At high levels of B-cell receptor (BCR) activation, which may occur in individual CLL patients, catalytically-inactive BTK restored the ability of the BCR to mediate increases in [Ca2+]i. Because catalytically-inactive BTK is insensitive to active-site BTK inhibitors, the mechanism involving the noncatalytic BTK uncovered here may contribute to preexisting reduced sensitivity or even primary resistance of CLL to these drugs.




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Nutrient-Induced Metabolic Stress, Adaptation, Detoxification, and Toxicity in the Pancreatic {beta}-Cell

Paraphrasing the Swiss physician and father of toxicology Paracelsus (1493–1541) on chemical agents used as therapeutics, "the dose makes the poison," it is now realized that this aptly applies to the calorigenic nutrients. The case here is the pancreatic islet β-cell presented with excessive levels of nutrients such as glucose, lipids, and amino acids. The short-term effects these nutrients exert on the β-cell are enhanced insulin biosynthesis and secretion and changes in glucose sensitivity. However, chronic fuel surfeit triggers additional compensatory and adaptive mechanisms by β-cells to cope with the increased insulin demand or to protect itself. When these mechanisms fail, toxicity due to the nutrient surplus ensues, leading to β-cell dysfunction, dedifferentiation, and apoptosis. The terms glucotoxicity, lipotoxicity, and glucolipotoxicity have been widely used, but there is some confusion as to what they mean precisely and which is most appropriate for a given situation. Here we address the gluco-, lipo-, and glucolipo-toxicities in β-cells by assessing the evidence both for and against each of them. We also discuss potential mechanisms and defend the view that many of the identified "toxic" effects of nutrient excess, which may also include amino acids, are in fact beneficial adaptive processes. In addition, candidate fuel-excess detoxification pathways are evaluated. Finally, we propose that a more general term should be used for the in vivo situation of overweight-associated type 2 diabetes reflecting both the adaptive and toxic processes to mixed calorigenic nutrients excess: "nutrient-induced metabolic stress" or, in brief, "nutri-stress."




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Exercise Combats Hepatic Steatosis: Potential Mechanisms and Clinical Implications

Hepatic steatosis, the excess storage of intrahepatic lipids, is a rampant clinical problem associated with the obesity epidemic. Hepatic steatosis is linked to increased risk for insulin resistance, type 2 diabetes, and cardiovascular and advanced liver disease. Accumulating evidence shows that physical activity, exercise, and aerobic capacity have profound effects on regulating intrahepatic lipids and mediating susceptibility for hepatic steatosis. Moreover, exercise can effectively reduce hepatic steatosis independent of changes in body mass. In this perspective, we highlight 1) the relationship between obesity and metabolic pathways putatively driving hepatic steatosis compared with changes induced by exercise; 2) the impact of physical activity, exercise, and aerobic capacity compared with caloric restriction on regulating intrahepatic lipids and steatosis risk; 3) the effects of exercise training (modalities, volume, intensity) for treatment of hepatic steatosis, and 4) evidence for a sustained protection against steatosis induced by exercise. Overall, evidence clearly indicates that exercise powerfully regulates intrahepatic storage of fat and risk for steatosis.




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Catabolic degradation of endothelial VEGFA via autophagy [Glycobiology and Extracellular Matrices]

Extracellular matrix-evoked angiostasis and autophagy within the tumor microenvironment represent two critical, but unconnected, functions of the small leucine-rich proteoglycan, decorin. Acting as a partial agonist of vascular endothelial growth factor 2 (VEGFR2), soluble decorin signals via the energy sensing protein, AMP-activated protein kinase (AMPK), in the autophagic degradation of intracellular vascular endothelial growth factor A (VEGFA). Here, we discovered that soluble decorin evokes intracellular catabolism of endothelial VEGFA that is mechanistically independent of mTOR, but requires an autophagic regulator, paternally expressed gene 3 (PEG3). We found that administration of autophagic inhibitors such as chloroquine or bafilomycin A1, or depletion of autophagy-related 5 (ATG5), results in accumulation of intracellular VEGFA, indicating that VEGFA is a basal autophagic substrate. Mechanistically, decorin increased the VEGFA clearance rate by augmenting autophagic flux, a process that required RAB24 member RAS oncogene family (RAB24), a small GTPase that facilitates the disposal of autophagic compartments. We validated these findings by demonstrating the physiological relevance of this process in vivo. Mice starved for 48 h exhibited a sharp decrease in overall cardiac and aortic VEGFA that could be blocked by systemic chloroquine treatment. Thus, our findings reveal a unified mechanism for the metabolic control of endothelial VEGFA for autophagic clearance in response to decorin and canonical pro-autophagic stimuli. We posit that the VEGFR2/AMPK/PEG3 axis integrates the anti-angiogenic and pro-autophagic bioactivities of decorin as the molecular basis for tumorigenic suppression. These results support future therapeutic use of decorin as a next-generation protein therapy to combat cancer.




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The cytochrome P450 enzyme CYP24A1 increases proliferation of mutant KRAS-dependent lung adenocarcinoma independent of its catalytic activity [Cell Biology]

We previously reported that overexpression of cytochrome P450 family 24 subfamily A member 1 (CYP24A1) increases lung cancer cell proliferation by activating RAS signaling and that CYP24A1 knockdown inhibits tumor growth. However, the mechanism of CYP24A1-mediated cancer cell proliferation remains unclear. Here, we conducted cell synchronization and biochemical experiments in lung adenocarcinoma cells, revealing a link between CYP24A1 and anaphase-promoting complex (APC), a key cell cycle regulator. We demonstrate that CYP24A1 expression is cell cycle–dependent; it was higher in the G2-M phase and diminished upon G1 entry. CYP24A1 has a functional destruction box (D-box) motif that allows binding with two APC adaptors, CDC20-homologue 1 (CDH1) and cell division cycle 20 (CDC20). Unlike other APC substrates, however, CYP24A1 acted as a pseudo-substrate, inhibiting CDH1 activity and promoting mitotic progression. Conversely, overexpression of a CYP24A1 D-box mutant compromised CDH1 binding, allowing CDH1 hyperactivation, thereby hastening degradation of its substrates cyclin B1 and CDC20, and accumulation of the CDC20 substrate p21, prolonging mitotic exit. These activities also occurred with a CYP24A1 isoform 2 lacking the catalytic cysteine (Cys-462), suggesting that CYP24A1's oncogenic potential is independent of its catalytic activity. CYP24A1 degradation reduced clonogenic survival of mutant KRAS-driven lung cancer cells, and calcitriol treatment increased CYP24A1 levels and tumor burden in Lsl-KRASG12D mice. These results disclose a catalytic activity-independent growth-promoting role of CYP24A1 in mutant KRAS-driven lung cancer. This suggests that CYP24A1 could be therapeutically targeted in lung cancers in which its expression is high.




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The heme-regulatory motifs of heme oxygenase-2 contribute to the transfer of heme to the catalytic site for degradation [Protein Structure and Folding]

Heme-regulatory motifs (HRMs) are present in many proteins that are involved in diverse biological functions. The C-terminal tail region of human heme oxygenase-2 (HO2) contains two HRMs whose cysteine residues form a disulfide bond; when reduced, these cysteines are available to bind Fe3+-heme. Heme binding to the HRMs occurs independently of the HO2 catalytic active site in the core of the protein, where heme binds with high affinity and is degraded to biliverdin. Here, we describe the reversible, protein-mediated transfer of heme between the HRMs and the HO2 core. Using hydrogen-deuterium exchange (HDX)-MS to monitor the dynamics of HO2 with and without Fe3+-heme bound to the HRMs and to the core, we detected conformational changes in the catalytic core only in one state of the catalytic cycle—when Fe3+-heme is bound to the HRMs and the core is in the apo state. These conformational changes were consistent with transfer of heme between binding sites. Indeed, we observed that HRM-bound Fe3+-heme is transferred to the apo-core either upon independent expression of the core and of a construct spanning the HRM-containing tail or after a single turnover of heme at the core. Moreover, we observed transfer of heme from the core to the HRMs and equilibration of heme between the core and HRMs. We therefore propose an Fe3+-heme transfer model in which HRM-bound heme is readily transferred to the catalytic site for degradation to facilitate turnover but can also equilibrate between the sites to maintain heme homeostasis.




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Glycation-mediated inter-protein cross-linking is promoted by chaperone-client complexes of {alpha}-crystallin: Implications for lens aging and presbyopia [Glycobiology and Extracellular Matrices]

Lens proteins become increasingly cross-linked through nondisulfide linkages during aging and cataract formation. One mechanism that has been implicated in this cross-linking is glycation through formation of advanced glycation end products (AGEs). Here, we found an age-associated increase in stiffness in human lenses that was directly correlated with levels of protein–cross-linking AGEs. α-Crystallin in the lens binds to other proteins and prevents their denaturation and aggregation through its chaperone-like activity. Using a FRET-based assay, we examined the stability of the αA-crystallin–γD-crystallin complex for up to 12 days and observed that this complex is stable in PBS and upon incubation with human lens–epithelial cell lysate or lens homogenate. Addition of 2 mm ATP to the lysate or homogenate did not decrease the stability of the complex. We also generated complexes of human αA-crystallin or αB-crystallin with alcohol dehydrogenase or citrate synthase by applying thermal stress. Upon glycation under physiological conditions, the chaperone–client complexes underwent greater extents of cross-linking than did uncomplexed protein mixtures. LC-MS/MS analyses revealed that the levels of cross-linking AGEs were significantly higher in the glycated chaperone–client complexes than in glycated but uncomplexed protein mixtures. Mouse lenses subjected to thermal stress followed by glycation lost resilience more extensively than lenses subjected to thermal stress or glycation alone, and this loss was accompanied by higher protein cross-linking and higher cross-linking AGE levels. These results uncover a protein cross-linking mechanism in the lens and suggest that AGE-mediated cross-linking of α-crystallin–client complexes could contribute to lens aging and presbyopia.




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Affinity maturation, humanization, and co-crystallization of a rabbit anti-human ROR2 monoclonal antibody for therapeutic applications [Immunology]

Antibodies are widely used as cancer therapeutics, but their current use is limited by the low number of antigens restricted to cancer cells. A receptor tyrosine kinase, receptor tyrosine kinase-like orphan receptor 2 (ROR2), is normally expressed only during embryogenesis and is tightly down-regulated in postnatal healthy tissues. However, it is up-regulated in a diverse set of hematologic and solid malignancies, thus ROR2 represents a candidate antigen for antibody-based cancer therapy. Here we describe the affinity maturation and humanization of a rabbit mAb that binds human and mouse ROR2 but not human ROR1 or other human cell-surface antigens. Co-crystallization of the parental rabbit mAb in complex with the human ROR2 kringle domain (hROR2-Kr) guided affinity maturation by heavy-chain complementarity-determining region 3 (HCDR3)-focused mutagenesis and selection. The affinity-matured rabbit mAb was then humanized by complementarity-determining region (CDR) grafting and framework fine tuning and again co-crystallized with hROR2-Kr. We show that the affinity-matured and humanized mAb retains strong affinity and specificity to ROR2 and, following conversion to a T cell–engaging bispecific antibody, has potent cytotoxicity toward ROR2-expressing cells. We anticipate that this humanized affinity-matured mAb will find application for antibody-based cancer therapy of ROR2-expressing neoplasms.




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Structural basis of substrate recognition and catalysis by fucosyltransferase 8 [Protein Structure and Folding]

Fucosylation of the innermost GlcNAc of N-glycans by fucosyltransferase 8 (FUT8) is an important step in the maturation of complex and hybrid N-glycans. This simple modification can dramatically affect the activities and half-lives of glycoproteins, effects that are relevant to understanding the invasiveness of some cancers, development of mAb therapeutics, and the etiology of a congenital glycosylation disorder. The acceptor substrate preferences of FUT8 are well-characterized and provide a framework for understanding N-glycan maturation in the Golgi; however, the structural basis of these substrate preferences and the mechanism through which catalysis is achieved remain unknown. Here we describe several structures of mouse and human FUT8 in the apo state and in complex with GDP, a mimic of the donor substrate, and with a glycopeptide acceptor substrate at 1.80–2.50 Å resolution. These structures provide insights into a unique conformational change associated with donor substrate binding, common strategies employed by fucosyltransferases to coordinate GDP, features that define acceptor substrate preferences, and a likely mechanism for enzyme catalysis. Together with molecular dynamics simulations, the structures also revealed how FUT8 dimerization plays an important role in defining the acceptor substrate-binding site. Collectively, this information significantly builds on our understanding of the core fucosylation process.




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Risk Factors for Diabetic Peripheral Neuropathy and Cardiovascular Autonomic Neuropathy in the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) Study

Barbara H. Braffett
May 1, 2020; 69:1000-1010
Complications




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Muscle Weakness: A Progressive Late Complication in Diabetic Distal Symmetric Polyneuropathy

Christer S. Andreassen
Mar 1, 2006; 55:806-812
Complications




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Intense Exercise Has Unique Effects on Both Insulin Release and Its Roles in Glucoregulation: Implications for Diabetes

Errol B. Marliss
Feb 1, 2002; 51:S271-S283
Section 6: Pusatile and Phasic Insulin Release in Normal and Diabetic Men




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Diabetes in China: Epidemiology and Genetic Risk Factors and Their Clinical Utility in Personalized Medication

Cheng Hu
Jan 1, 2018; 67:3-11
Perspectives in Diabetes




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The Pathobiology of Diabetic Complications: A Unifying Mechanism

Michael Brownlee
Jun 1, 2005; 54:1615-1625
Banting Lecture 2004




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Sovereignty and Non-Intervention: The Application of International Law to State Cyberattacks

Research Event

4 December 2019 - 5:30pm to 7:00pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Douglas, Legal Director, GCHQ
Zhixiong Huang, Luojia Chair of International Law, Wuhan University
Nemanja Malisevic, Director of Digital Diplomacy, Microsoft
Harriet Moynihan, Associate Fellow, International Law Programme, Chatham House
Chair: Elizabeth Wilmshurst, Distinguished Fellow, International Law Programme, Chatham House

International law applies to cyber operations – but views differ on exactly how. Does state-sponsored interference in another state's affairs using cyber means – for example,  disinformation campaigns in elections, disabling government websites, or disrupting transport systems – breach international law? If so, on what basis and how are the principles of sovereignty and non-intervention relevant? States are increasingly attributing cyber operations to other states and engaging in the debate on how international law applies, including circumstances that would justify countermeasures.

As states meet to debate these issues at the UN, the panel will explore how international law regulates cyberoperations by states, consider the prospects of progress at the UN, and assess the value of other initiatives.

This event coincides with the launch of a Chatham House research paper which analyses how the principles of sovereignty and intervention apply in the context of cyberoperations, and considers a way forward for agreeing a common understanding of cyber norms.

This event will bring together a broad group of actors, including policymakers, the private sector, legal experts and civil society, and will be followed by a drinks reception.

 

Jacqueline Rowe

Programme Assistant, International Law Programme
020 7389 3287




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The Application of International Law to State Cyberattacks: Sovereignty and Non-Intervention

2 December 2019

Hostile cyber operations by one state against another state are increasingly common. This paper analyzes the application of the sovereignty and non-intervention principles in relation to states’ cyber operations in another state below the threshold of the use of force. 

Harriet Moynihan

Senior Research Fellow, International Law Programme

2019-11-29-Intl-Law-Cyberattacks.jpg

A computer hacked by a virus known as Petya. The Petya ransomware cyberattack hit computers of Russian and Ukrainian companies on 27 June 2017. Photo: Getty Images.

Summary

  • The vast majority of state-to-state cyberattacks consist of persistent, low-level intrusions that take place below the threshold of use of force. International law, including the principle of non-intervention in another state’s internal affairs and the principle of sovereignty, applies to these cyber operations.
  • It is not clear whether any unauthorized cyber intrusion would violate the target state’s sovereignty, or whether there is a threshold in operation. While some would like to set limits by reference to effects of the cyber activity, at this time such limits are not reflected in customary international law. The assessment of whether sovereignty has been violated therefore has to be made on a case by case basis, if no other more specific rules of international law apply.
  • In due course, further state practice and opinio iuris may give rise to an emerging cyber-specific understanding of sovereignty, just as specific rules deriving from the sovereignty principle have crystallized in other areas of international law.
  • Before a principle of due diligence can be invoked in the cyber context, further work is needed by states to agree upon rules as to what might be expected of a state in this context.
  • The principle of non-intervention applies to a state’s cyber operations as it does to other state activities. It consists of coercive behaviour by one state that deprives the target state of its free will in relation to the exercise of its sovereign functions in order to compel an outcome in, or conduct with respect to, a matter reserved to the target state.
  • In practice, activities that contravene the non-intervention principle and activities that violates sovereignty will often overlap.
  • In order to reach agreement on how international law applies to states’ cyber operations below the level of use of force, states should put their views on record, where possible giving examples of when they consider that an obligation may be breached, as states such as the UK, Australia, France and the Netherlands have done.
  • Further discussion between states should focus on how the rules apply to practical examples of state-sponsored cyber operations. There is likely to be more commonality about specific applications of the law than there is about abstract principles.
  • The prospects of a general treaty in this area are still far off. In due course, there may be benefit in considering limited rules, for example on due diligence and a prohibition on attacking critical infrastructure, before tackling broad principles.




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Implications of AMLO and Bolsonaro for Mexican and Brazilian Foreign Policy

Invitation Only Research Event

26 February 2020 - 12:15pm to 1:15pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Ambassador Andrés Rozental, Senior Adviser, Chatham House; Founding President, Mexican Council on Foreign Relations
Dr Elena Lazarou, Associate Fellow, US and the Americas Programme, Chatham House
Chair: Dr Christopher Sabatini, Senior Research Fellow for Latin America, US and the Americas Programme, Chatham House

The end of 2018 was a monumental year for Latin America’s two biggest economies. In December 2018, Andrés Manuel López Obrador (AMLO) was inaugurated as Mexico’s 58th president. The following month saw another political shift further south, as Jair Bolsonaro became Brazil’s 38th president. While sitting on opposite ends of the political spectrum, both AMLO and Bolsonaro were considered to be political outsiders and have upended the status quo through their election to office. 

To what extent does the election of AMLO in Mexico and Bolsonaro in Brazil represent a shift in those countries’ definitions of national interest and foreign policy priorities? How will this affect these states’ policies regarding international commitments and cooperation on issues such as human rights, environment and climate change, migration, and trade? To what extent do possible shifts reflect changing domestic opinions?  Will any changes represent a long-term shift in state priorities and policies past these administrations?

US and Americas Programme




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US 2020: Super Tuesday and Implications for the General Election

Invitation Only Research Event

5 March 2020 - 12:00pm to 1:30pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Dr Lindsay Newman, Senior Research Fellow, US and the Americas Programme, Chatham House
Professor Peter Trubowitz, Professor of International Relations, London School of Economics and Political Science; Associate Fellow, US and the Americas Programme, Chatham House
Amy Pope, Associate Fellow, US and the Americas Programme, Chatham House; Deputy Homeland Security Advisor, US National Security Council, 2015-17
Chair: Dr Leslie Vinjamuri, Director, US and the Americas Programme, Chatham House

The US 2020 election season enters a potentially decisive next phase with the Super Tuesday primaries on 3 March. With these fifteen, simultaneously-held state elections, the Democrats hope to have greater clarity about their party’s likely nominee for the general race against President Donald Trump in November. Concerns around intraparty divisions in the Democratic party between progressives (represented by Senators Elizabeth Warren and Bernie Sanders) and moderates (represented by former Vice President Joe Biden and former mayor Pete Buttigieg) have surrounded the primary races so far, and are unlikely to dissipate even if one candidate emerges from the field on 3 March.

Against this backdrop, Chatham House brings together a panel of experts to discuss the state of the Democratic primary race, implications for the general election, and the Trump campaign’s priorities ahead of its re-election bid. Will the Democratic party resolve its divisions and unite behind a progressive or moderate in light of the Super Tuesday election results? How is Trump positioned to fair against the Democratic candidates left in the race? Did Former Mayor of New York Michael Bloomberg’s primary gamble to focus on Super Tuesday pay off? And what policy priorities are likely to be pursued under either a Trump 2.0 or a Democratic administration?

Event attributes

Chatham House Rule

US and Americas Programme




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Diabetes Core Update: Covid-19 – Deep Dive into Medication Management April 2019

This special issue focuses on Diabetes, Covid-19 and Inpatient Management.

Recorded April 14, 2020.

This podcast will cover:

  1. Inpatient Medication Management for Persons Admitted with Diabetes
  2. Outpatient Medication Management for Persons with Diabetes
    1. Hypoglycemic Medication Management
    2. ACE and ARBs
    3. NSAIDs

Intended for practicing physicians and health care professionals, Diabetes Core Update discusses how the latest research and information published in journals of the American Diabetes Association are relevant to clinical practice and can be applied in a treatment setting.

Presented by:

Neil Skolnik, M.D., Professor of Family and Community Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Associate Director, Family Medicine Residency Program, Abington Jefferson Health

Dr. Joshua Neumiller, Vice Chair & Allen I. White Distinguished Associate Professor of Pharmacotherapy at Washington State University




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The Changing Nature of Russia’s Military Strategy and Its Tactical Application

Invitation Only Research Event

12 November 2019 - 4:00pm to 5:30pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Oscar Jonsson, Director, Stockholm Free World Forum (Frivärld)
Mathieu Boulègue, Research Fellow, Russia and Eurasia Programme, Chatham House
Chair: ​Alice Billon-Galland, Research Associate, Europe Programme, Chatham House

Russia’s military strategy is increasingly blurring the boundaries between war and peace. As the nature of warfare changes, the Kremlin is adapting its strategies to pursue conflict, especially through non-military means - below the threshold of armed violence. 

Russian military tactics are often mistaken for strategy in the West. Oscar Jonson, author of The Russian Understanding of War, will talk through this debate and explore how the Russian leadership now understands military strategy in the context of modern warfare. Mathieu Boulègue will address the more operational aspects of contemporary warfare for Russia, notably grey zone operations. 

Department/project

Anna Morgan

Administrator, Ukraine Forum
+44 (0)20 7389 3274




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Russia's Imperial Nostalgia: Implications for the West

Invitation Only Research Event

31 January 2020 - 11:00am to 12:30pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Sergei Medvedev, Professor, Faculty of Social Sciences, Higher School of Economics (Moscow)

Vladimir Putin’s goal of restoring Russia’s status as a great power has led to an aggressive foreign policy and confrontation with its immediate neighbours as well as Western countries.

Sergei Medvedev, author of The Return of the Russian Leviathan, will discuss the forces shaping Russian politics and society today as well as how a nostalgia for empire – still widespread in contemporary Russia - has shaped Moscow’s foreign policy.

Attendance at this event is by invitation only.

Event attributes

Chatham House Rule

Anna Morgan

Administrator, Ukraine Forum
+44 (0)20 7389 3274




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Dream Catcher

Here you are, In a long, low, valley, On a horse, under sweltering sky. A single trail runs East to West, As far as the eye can see. The sheep-skin bags, Slung low off the saddle, Are empty. Bandits rode into town last week, And made off with a couple of dreams, Now you must […]




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Earth Observation, Risk Assessment and Global Change: Implications for the Insurance and Aerospace Sectors

Research Event

16 July 2008 - 2:00pm to 5:15pm

Chatham House, London

This event is organized by Chatham House and the Center for Strategic and International Studies (CSIS).

Keynote speaker:

  • Lindene Patton, Climate Product Officer, Zurich Financial Services
Other speaker highlights:
  • Alexis Livanos, Northrop Grumman
  • Sir David King, University of Oxford
  • Barend Van Bergen, KPMG
  • Mike Keebaugh,Raytheon
  • Peter Stott, UK Met Office
  • Trevor Maynard, Lloyd's
  • Shree Khare, Risk Management Solutions
  • Giovanni Rum, Group on Earth Observations
  • Greg Withee, US National Oceanic and Atmospheric Administration
  • Man Cheung, Marsh Ltd




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Implications of climate change for the UN Security Council: mapping the range of potential policy responses

6 November 2015 , Volume 91, Number 6

 

 

Shirley V. Scott




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Europe’s Energy Union: Foreign Policy Implications for Energy Security, Climate and Competitiveness

31 March 2016

By addressing structural divisions between member states, the Energy Union could have a beneficial effect on the EU’s capacity to conduct a unified and effective foreign policy, write Thomas Raines and Shane Tomlinson.

Thomas Raines

Director, Europe Programme

Shane Tomlinson

Former Senior Research Fellow, Energy, Environment and Resources, Chatham House

2016-03-31-europe-energy-union.jpg

True colour satellite image of Europe at night. Photo via Getty Images.

Summary

  • Plans for an EU-wide Energy Union are taking shape, following the European Commission’s adoption in February 2015 of a ‘Framework Strategy for a Resilient Energy Union with a Forward-Looking Climate Change Policy’. The strategy underlines the EU’s ambition to attain ‘secure, sustainable, competitive, affordable energy for every European’.
  • The initiative seeks to transform energy markets and energy/climate policy across the EU. Its goals include cross-border coordination and integration in energy security, supply, market operations, regulation, energy efficiency, low-carbon development, and research and innovation.
  • There is an important foreign policy aspect to the Energy Union, given the imperative of managing security and supply risks in Europe’s neighbourhood and further afield. By addressing structural divisions between member states, the Energy Union could have a marked beneficial effect on the EU’s capacity to conduct a unified and effective foreign policy.
  • Development of the Energy Union presents abundant challenges, however. Policy and legislative changes will need to be coordinated across 28 countries. Variations in EU member states’ attitudes to security and energy policy may lead to differences in, or clashes between, priorities. The wider context is also complicated. Interrelated challenges rooted in broader policy issues include the partial transition to low-carbon energy, and concerns over competitiveness relative to other major economies.
  • The current EU approach to energy security and infrastructure focuses on natural gas. This ‘gas first’ approach risks crowding out other responses to the energy security challenge. It could result in the creation of ‘stranded assets’, if the future gas demand on which investments are predicated does not match projections. A narrow focus on new gas infrastructure could also impede development of other dimensions of the Energy Union.
  • The markets for coal, oil, gas and renewables are changing significantly. The shale oil and gas ‘revolution’ in the United States has altered the economics of hydrocarbon fuels, and the plunge in oil prices since mid-2014 is causing energy businesses in the EU to reassess investment plans.
  • The EU is rapidly expanding the use of renewable energy. Dramatically falling prices for renewables will challenge traditional energy utility business models. How the Energy Union enables market access for new business models will be key to determining future energy trajectories.




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‘Laugh Online’ with Ity and Fancy Cat

Widely considered the ‘kings of comedy’ in Jamaica, Ity and Fancy Cat have been serving up laughter to audiences for years. Their comedy series, The Ity and Fancy Cat Show, ended in 2017 but the duo continued to deliver high-quality entertainment...




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Colin Steer | Cooperation, creativity and challenges in education amid COVID-19

Public reaction to the initial threat of the coronavirus (COVID-19) was predictably mixed. While international news of the contagion across continents helped people to appreciate that this was not restricted to a particular region, not many people...




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Mark Ricketts | Time to rethink economic implications - Jamaica engages IMF but the cost of the pandemic remains high

On Tuesday, April 14, the International Monetary Fund downgraded Jamaica’s growth prospects to -5.6 per cent. This is a severe contraction warranting substantial Government intervention. However, at times, the Government waits too late to respond...




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Markakis enjoys reaping rewards of dedication

Braves manager Brian Snitker joked that he could almost detect a smile as he shared a phone conversation with Nick Markakis after the stoic outfielder re-signed with the club in January. Snitker and others actually saw that smile on Tuesday morning, when Markakis reported to Spring Training to begin his fifth season with the Braves and attempt to push the club past the rebuild he positively enriched through his leadership.




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Umpires suffering ‘dislocation’ but looking to alternatives – Johnson

ROSEAU, Dominica (CMC): A top West Indies Cricket Umpires Association (WICUA) official says regional umpires have also been heavily impacted by the cessation of cricket, stemming from the outbreak of the COVID-19 pandemic. Vivian Johnson, who...




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Obioma Ezekobe GP - patients need to be educated about resources

Obioma Ezekobe is a GP in an urgent care centre in Central Middlesex Hospital. She believes that the public need to be educated about the use of NHS resources, and be taught when it is appropriate to seek care. If you would like to contribute to this collection, please email a brief audio recording to voices@bmj.com or phone +44 (20) 3058 7427...




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Unexpected findings, with uncertain implications, in research imaging

When healthy volunteers are scanned as part of a research project, unexpected findings, with uncertain implications, can be thrown up. Joanna Wardlaw, professor of applied neuroimaging and honorary consultant neuroradiologist at the University of Edinburgh, joins us to discuss how her group deals with these incidental findings, and what...




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Education round up - November

The BMJ publishes a variety of education articles, to help doctors improve their practice. Often authors join us in our podcast to give tips on putting their recommendations into practice. In this new monthly audio round-up The BMJ’s clinical editors discuss what they have learned, and how they may alter their practice. In our second audio...




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Education round up - HIV testing, legal highs and care for relatives of the dying

The BMJ publishes a lot of educational articles, and in an attempt to help you with your CPD, we have put together this round-up. Our authors and editors will reflect on the key learning points in the articles we discuss, and explain how they may change their practice in light of that new understanding. In this week's round up we're...




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HIV in pregnancy - "without the big picture, people aren't going to be able to take the medication"

A new Rapid Recommendation from The BMJ suggests that for pregnant women, they may wish to avoid certain antiviral treatments for HIV. This recommendation differs from the WHO's, and to discuss why that is, and what makes that difference important, we're joined by Reed Siemieniuk, a physician and methodologist from McMaster University, and Alice...




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Education round-up - January 2018

The BMJ publishes a variety of education articles, to help doctors improve their practice. Often authors join us in our podcast to give tips on putting their recommendations into practice. In this audio round-up The BMJ’s clinical editors discuss what they have learned, and how they may alter their practice. Kate Addlington, associate editor and...




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How often do hospital doctors change long term medication during an inpatient stay?

More than ½ of patients leave hospital with changes to four or more of their long-term medications - but how appropriate are those changes? New research published on bmj.com looks at antihypertensive medication prescription changes to try and model that - and found that more than half of intensifications occurred in patients with previously well...




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#talkaboutcomplications

Renza Scibilia and Chris Aldred have diabetes, and their introduction to the idea of complications arising from the condition were terrifying. Because of this early experience, and Chris's later development of complications, they have campaigned to make doctors really think about the way in which they talk about complications with patients....