hem Breakthrough Might Break Down PFAS 'Forever Chemicals' By www.medicinenet.com Published On :: Fri, 19 Aug 2022 00:00:00 PDT Title: Breakthrough Might Break Down PFAS 'Forever Chemicals'Category: Health NewsCreated: 8/19/2022 12:00:00 AMLast Editorial Review: 8/19/2022 12:00:00 AM Full Article
hem Types of Abdominal Fat, What They Are, and How to Lose Them By www.medicinenet.com Published On :: Thu, 18 Aug 2022 00:00:00 PDT Title: Types of Abdominal Fat, What They Are, and How to Lose ThemCategory: Health and LivingCreated: 8/18/2022 12:00:00 AMLast Editorial Review: 8/18/2022 12:00:00 AM Full Article
hem Low Levels of Brain Chemical May Control Appetite By www.medicinenet.com Published On :: Mon, 29 Aug 2022 00:00:00 PDT Title: Low Levels of Brain Chemical May Control AppetiteCategory: Health NewsCreated: 8/28/2008 2:00:00 AMLast Editorial Review: 8/28/2008 12:00:00 AM Full Article
hem Breast-Feeding May Pass Common Chemical to Baby, Study Shows By www.medicinenet.com Published On :: Mon, 29 Aug 2022 00:00:00 PDT Title: Breast-Feeding May Pass Common Chemical to Baby, Study ShowsCategory: Health NewsCreated: 8/21/2015 12:00:00 AMLast Editorial Review: 8/24/2015 12:00:00 AM Full Article
hem Travel Time Can Hamper Follow-Up Chemo, Study Says By www.medicinenet.com Published On :: Mon, 29 Aug 2022 00:00:00 PDT Title: Travel Time Can Hamper Follow-Up Chemo, Study SaysCategory: Health NewsCreated: 8/24/2015 12:00:00 AMLast Editorial Review: 8/25/2015 12:00:00 AM Full Article
hem Fewer Cancer-Causing Chemicals in E-Cigs Than Regular Cigarettes: Study By www.medicinenet.com Published On :: Mon, 29 Aug 2022 00:00:00 PDT Title: Fewer Cancer-Causing Chemicals in E-Cigs Than Regular Cigarettes: StudyCategory: Health NewsCreated: 8/19/2016 12:00:00 AMLast Editorial Review: 8/22/2016 12:00:00 AM Full Article
hem Banned PCB Chemicals Still Tied to Autism in U.S. Kids By www.medicinenet.com Published On :: Mon, 29 Aug 2022 00:00:00 PDT Title: Banned PCB Chemicals Still Tied to Autism in U.S. KidsCategory: Health NewsCreated: 8/23/2016 12:00:00 AMLast Editorial Review: 8/23/2016 12:00:00 AM Full Article
hem Alex Trebek Back Hosting 'Jeopardy!' After Completing Chemotherapy By www.medicinenet.com Published On :: Mon, 29 Aug 2022 00:00:00 PDT Title: Alex Trebek Back Hosting 'Jeopardy!' After Completing ChemotherapyCategory: Health NewsCreated: 8/30/2019 12:00:00 AMLast Editorial Review: 8/30/2019 12:00:00 AM Full Article
hem Exercise Could Help Fight 'Chemo Brain' in Breast Cancer Patients By www.medicinenet.com Published On :: Mon, 29 Aug 2022 00:00:00 PDT Title: Exercise Could Help Fight 'Chemo Brain' in Breast Cancer PatientsCategory: Health NewsCreated: 8/25/2021 12:00:00 AMLast Editorial Review: 8/25/2021 12:00:00 AM Full Article
hem Gene Therapy Makes Inroads Against a Form of Hemophilia By www.medicinenet.com Published On :: Fri, 22 Jul 2022 00:00:00 PDT Title: Gene Therapy Makes Inroads Against a Form of HemophiliaCategory: Health NewsCreated: 7/22/2022 12:00:00 AMLast Editorial Review: 7/22/2022 12:00:00 AM Full Article
hem Banded Squats: Benefits and 11 Ways to Do Them By www.medicinenet.com Published On :: Mon, 8 Aug 2022 00:00:00 PDT Title: Banded Squats: Benefits and 11 Ways to Do ThemCategory: Health and LivingCreated: 8/8/2022 12:00:00 AMLast Editorial Review: 8/8/2022 12:00:00 AM Full Article
hem Study Casts Doubt on 'Chemical Imbalance' Theory of Depression By www.medicinenet.com Published On :: Tue, 9 Aug 2022 00:00:00 PDT Title: Study Casts Doubt on 'Chemical Imbalance' Theory of DepressionCategory: Health NewsCreated: 8/9/2022 12:00:00 AMLast Editorial Review: 8/9/2022 12:00:00 AM Full Article
hem Mutational scanning of CRX classifies clinical variants and reveals biochemical properties of the transcriptional effector domain [RESEARCH] By genome.cshlp.org Published On :: 2024-10-29T06:46:07-07:00 The transcription factor (TF) cone-rod homeobox (CRX) is essential for the differentiation and maintenance of photoreceptor cell identity. Several human CRX variants cause degenerative retinopathies, but most are variants of uncertain significance. We performed a deep mutational scan (DMS) of nearly all possible single amino acid substitutions in CRX using a cell-based transcriptional reporter assay, curating a high-confidence list of nearly 2000 variants with altered transcriptional activity. In the structured homeodomain, activity scores closely aligned to a predicted structure and demonstrated position-specific constraints on amino acid substitution. In contrast, the intrinsically disordered transcriptional effector domain displayed a qualitatively different pattern of substitution effects, following compositional constraints without specific residue position requirements in the peptide chain. These compositional constraints were consistent with the acidic exposure model of transcriptional activation. We evaluated the performance of the DMS assay as a clinical variant classification tool using gold-standard classified human variants from ClinVar, identifying pathogenic variants with high specificity and moderate sensitivity. That this performance could be achieved using a synthetic reporter assay in a foreign cell type, even for a highly cell type-specific TF like CRX, suggests that this approach shows promise for DMS of other TFs that function in cell types that are not easily accessible. Together, the results of the CRX DMS identify molecular features of the CRX effector domain and demonstrate utility for integration into the clinical variant classification pipeline. Full Article
hem Impact of Point of Care Hemoglobin A1c Testing on Time to Therapeutic Intervention By www.jabfm.org Published On :: 2024-10-25T09:26:14-07:00 Without compromising accuracy, point of care testing (POCT) provides immediate results at the time of in person patient consultation. The purpose of this study was to evaluate time until therapeutic intervention with POCT HbA1c versus venipuncture, where venipuncture was considered standard of care. The primary outcome was time (hours) to implementation of a therapeutic intervention based on POCT HbA1c result, as compared with most recent venipuncture HbA1c before the study and its associated therapeutic intervention. A total of 94 POCT HbA1c tests were included in the primary analysis. For the POCT HbA1c, the mean time to therapeutic intervention was 1.6 ± 3.14 hours. For the previous venipuncture HbA1c, the mean time to therapeutic intervention was 1376.66 ± 3356.6 hours (P < .001). Overall, this trial showed that POCT HbA1c results in a significantly faster time to therapeutic intervention than venipuncture in a primary care clinic that serves a rural population. Full Article
hem The Impact of Increased PEEP on Hemodynamics, Respiratory Mechanics, and Oxygenation in Pediatric ARDS By rc.rcjournal.com Published On :: 2024-10-25T05:44:12-07:00 BACKGROUND:PEEP is a cornerstone treatment for children with pediatric ARDS. Unfortunately, its titration is often performed solely by evaluating oxygen saturation, which can lead to inadequate PEEP level settings and consequent adverse effects. This study aimed to assess the impact of increasing PEEP on hemodynamics, respiratory system mechanics, and oxygenation in children with ARDS.METHODS:Children receiving mechanical ventilation and on pressure-controlled volume-guaranteed mode were prospectively assessed for inclusion. PEEP was sequentially changed to 5, 12, 10, 8 cm H2O, and again to 5 cm H2O. After 10 min at each PEEP level, hemodynamic, ventilatory, and oxygenation variables were collected.RESULTS:A total of 31 subjects were included, with median age and weight of 6 months and 6.3 kg, respectively. The main reasons for pediatric ICU admission were respiratory failure caused by acute viral bronchiolitis (45%) and community-acquired pneumonia (32%). Most subjects had mild or moderate ARDS (45% and 42%, respectively), with a median (interquartile range) oxygenation index of 8.4 (5.8–12.7). Oxygen saturation improved significantly when PEEP was increased. However, although no significant changes in blood pressure were observed, the median cardiac index at PEEP of 12 cm H2O was significantly lower than that observed at any other PEEP level (P = .001). Fourteen participants (45%) experienced a reduction in cardiac index of > 10% when PEEP was increased to 12 cm H2O. Also, the estimated oxygen delivery was significantly lower, at 12 cm H2O PEEP. Finally, respiratory system compliance significantly reduced when PEEP was increased. At a PEEP of 12 cm H2O, static compliance had a median reduction of 25% in relation to the initial assessment (PEEP of 5 cm H2O).CONCLUSIONS:Although it may improve arterial oxygen saturation, inappropriately high PEEP levels may reduce cardiac output, oxygen delivery, and respiratory system compliance in pediatric subjects with ARDS with low potential for lung recruitability. Full Article
hem YY1 knockout in pro-B cells impairs lineage commitment, enabling unusual hematopoietic lineage plasticity [Research Papers] By genesdev.cshlp.org Published On :: 2024-10-16T07:18:56-07:00 During B-cell development, cells progress through multiple developmental stages, with the pro-B-cell stage defining commitment to the B-cell lineage. YY1 is a ubiquitous transcription factor that is capable of both activation and repression functions. We found here that knockout of YY1 at the pro-B-cell stage eliminates B lineage commitment. YY1 knockout pro-B cells can generate T lineage cells in vitro using the OP9-DL4 feeder system and in vivo after injection into sublethally irradiated Rag1–/– mice. These T lineage-like cells lose their B lineage transcript profile and gain a T-cell lineage profile. Single-cell RNA-seq experiments showed that as YY1 knockout pro-B cells transition into T lineage cells in vitro, various cell clusters adopt transcript profiles representing a multiplicity of hematopoietic lineages, indicating unusual lineage plasticity. In addition, YY1 KO pro-B cells in vivo can give rise to other hematopoietic lineages in vivo. Evaluation of RNA-seq, scRNA-seq, ChIP-seq, and scATAC-seq data indicates that YY1 controls numerous chromatin-modifying proteins leading to increased accessibility of alternative lineage genes in YY1 knockout pro-B cells. Given the ubiquitous nature of YY1 and its dual activation and repression functions, YY1 may regulate commitment in multiple cell lineages. Full Article
hem Development and Piloting of Implementation Strategies to Support Delivery of a Clinical Intervention for Postpartum Hemorrhage in Four sub-Saharan Africa Countries By ghspjournal.org Published On :: 2024-10-29T12:28:39-07:00 ABSTRACTIntroduction:Postpartum hemorrhage (PPH) remains the leading cause of maternal mortality. A new clinical intervention (E-MOTIVE) holds the potential to improve early PPH detection and management. We aimed to develop and pilot implementation strategies to support uptake of this intervention in Kenya, Nigeria, South Africa, and Tanzania.Methods:Implementation strategy development: We triangulated findings from qualitative interviews, surveys and a qualitative evidence synthesis to identify current PPH care practices and influences on future intervention implementation. We mapped influences using implementation science frameworks to identify candidate implementation strategies before presenting these at stakeholder consultation and design workshops to discuss feasibility, acceptability, and local adaptations. Piloting: The intervention and implementation strategies were piloted in 12 health facilities (3 per country) over 3 months. Interviews (n=58), case report forms (n=1,269), and direct observations (18 vaginal births, 7 PPHs) were used to assess feasibility, acceptability, and fidelity.Results:Implementation strategy development: Key influences included shortages of drugs, supplies, and staff, limited in-service training, and perceived benefits of the intervention (e.g., more accurate PPH detection and reduced PPH mortality). Proposed implementation strategies included a PPH trolley, on-site simulation-based training, champions, and audit and feedback. Country-specific adaptations included merging the E-MOTIVE intervention with national maternal health trainings, adapting local PPH protocols, and PPH trollies depending on staff needs. Piloting: Intervention and implementation strategy fidelity differed within and across countries. Calibrated drapes resulted in earlier and more accurate PPH detection but were not consistently used at the start. Implementation strategies were feasible to deliver; however, some instances of limited use were observed (e.g., PPH trolley and skills practice after training).Conclusion:Systematic intervention development, piloting, and process evaluation helped identify initial challenges related to intervention fidelity, which were addressed ahead of a larger-scale effectiveness evaluation. This has helped maximize the internal validity of the trial. Full Article
hem Chronic Administration of Cannabinoid Agonists ACEA, AM1241, and CP55,940 Induce Sex-Specific Differences in Tolerance and Sex Hormone Changes in a Chemotherapy-Induced Peripheral Neuropathy [Special Section: Cannabinoid Signaling in Human Health and Dise By jpet.aspetjournals.org Published On :: 2024-10-18T07:04:15-07:00 Chemotherapy-induced peripheral neuropathy (CIPN) is a common side effect of chemotherapy treatment, routinely manifesting as increased pain sensitivity (allodynia) in distal extremities. Despite its prevalence, effective treatment options are limited. Cannabinoids are increasingly being evaluated for their ability to treat chronic pain conditions, including CIPN. While previous studies have revealed sex differences in cannabinoid-mediated antinociception in acute and chronic pain models, there is a paucity of studies addressing potential sex differences in the response of CIPN to cannabinoid treatment. Therefore, we evaluated the long-term antiallodynic efficacy of cannabinoid receptor type 1 (CB1)-selective, cannabinoid receptor type 2 (CB2)-selective, and CB1/CB2 mixed agonists in the cisplatin CIPN model, using both male and female mice. CB1 selective agonism was observed to have sex differences in the development of tolerance to antiallodynic effects, with females developing tolerance more rapidly than males, while the antiallodynic effects of selective CB2 agonism lacked tolerance development. Compound-specific changes to the female estrous cycle and female plasma estradiol levels were noted, with CB1 selective agonism decreasing plasma estradiol while CB2 selective agonism increased plasma estradiol. Chronic administration of a mixed CB1/CB2 agonist resulted in increased mRNA expression of proinflammatory cytokines and endocannabinoid regulatory enzymes in female spinal cord tissue. Ovarian tissue was noted to have proinflammatory cytokine mRNA expression following administration of a CB2 acting compound while selective CB1 agonism resulted in decreased proinflammatory cytokines and endocannabinoid regulatory enzymes in testes. These results support the need for further investigation into the role of sex and sex hormones signaling in pain and cannabinoid-mediated antinociceptive effects. SIGNIFICANCE STATEMENT CIPN is a common side effect of chemotherapy. We have found that both CB1 and CB2 receptor agonism produce antinociceptive effects in a cisplatin CIPN model. We observed that tolerance to CB1-mediated antinociception developed faster in females and did not develop for CB2-mediated antinociception. Additionally, we found contrasting roles for CB1/CB2 receptors in the regulation of plasma estradiol in females, with CB1 agonism attenuating estradiol and CB2 agonism enhancing estradiol. These findings support the exploration of cannabinoid agonists for CIPN. Full Article
hem KLS-13019, a Novel Structural Analogue of Cannabidiol and GPR55 Receptor Antagonist, Prevents and Reverses Chemotherapy-Induced Peripheral Neuropathy in Rats [Special Section: Cannabinoid Signaling in Human Health and Disease] By jpet.aspetjournals.org Published On :: 2024-10-18T07:04:15-07:00 Neuropathic pain is a form of chronic pain that develops because of damage to the nervous system. Treatment of neuropathic pain is often incompletely effective, and most available therapeutics have only moderate efficacy and present side effects that limit their use. Opioids are commonly prescribed for the management of neuropathic pain despite equivocal results in clinical studies and significant abuse potential. Thus, neuropathic pain represents an area of critical unmet medical need, and novel classes of therapeutics with improved efficacy and safety profiles are urgently needed. The cannabidiol structural analog and novel antagonist of GPR55, KLS-13019, was screened in rat models of neuropathic pain. Tactile sensitivity associated with chemotherapy exposure was induced in rats with once-daily 1-mg/kg paclitaxel injections for 4 days or 5 mg/kg oxaliplatin every third day for 1 week. Rats were then administered KLS-13019 or comparator drugs on day 7 in an acute dosing paradigm or days 7–10 in a chronic dosing paradigm, and mechanical or cold allodynia was assessed. Allodynia was reversed in a dose-dependent manner in the rats treated with KLS-13019, with the highest dose reverting the response to prepaclitaxel injection baseline levels with both intraperitoneal and oral administration after acute dosing. In the chronic dosing paradigm, four consecutive doses of KLS-13019 completely reversed allodynia for the duration of the phenotype in control animals. Additionally, coadministration of KLS-13019 with paclitaxel prevented the allodynic phenotype from developing. Together, these data suggest that KLS-13019 represents a potential new drug for the treatment of neuropathic pain. SIGNIFICANCE STATEMENT Chemotherapy-induced peripheral neuropathy (CIPN) is a common, debilitating side effect of cancer treatment with no known cure. The GPR55 antagonist KLS-13019 represents a novel class of drug for this condition that is a potent, durable inhibitor of allodynia associated with CIPN in rats in both prevention and reversal-dosing paradigms. This novel therapeutic approach addresses a critical area of unmet medical need. Full Article
hem Correlation of FAPI PET Uptake with Immunohistochemistry in Explanted Lungs from Patients with Advanced Interstitial Lung Disease By jnm.snmjournals.org Published On :: 2024-11-01T04:25:31-07:00 Recent studies have demonstrated promising results of fibroblast activation protein (FAP) inhibitor (FAPI) PET in prognosticating and monitoring interstitial lung diseases (ILDs). As a first step toward successful translation, our primary aim was to validate the FAPI PET uptake through immunohistochemistry in patients with advanced ILD who underwent lung transplantation after a FAPI PET scan. Methods: This is a preliminary analysis of a single-center, open-label, single-arm, prospective exploratory biodistribution study of 68Ga-FAPI-46 PET imaging in patients with ILD (NCT05365802). Patients with ILD confirmed by high-resolution CT and scheduled for lung transplant were included. Tissue samples of explanted lungs were obtained from both the central and peripheral lung parenchyma of each lobe. Additional samples were obtained from areas of the lung corresponding to regions of FAPI PET activity. Immunohistochemical staining was performed with an anti-FAP antibody. Percentages of FAP immunohistochemistry-positive area were measured semiautomatically using QuPath software. SUVs in the areas of pathologic samples were measured on FAPI PET/CT by referencing the gross photomap of the explanted lung. A Spearman correlation coefficient test was used to assess the relationship between FAPI PET uptake and FAP immunohistochemical expression in each specimen. Results: Four patients with advanced ILD who underwent FAPI PET/CT before lung transplantation were included. The types of ILD were idiopathic pulmonary fibrosis (n = 2), rheumatoid arthritis–associated ILD (n = 1), and nonspecific interstitial pneumonia (n = 1). FAPI uptake was visualized mainly in the fibrotic area on CT. Twenty-nine surgical pathology samples from 3 patients were analyzed. FAP staining was predominantly positive in fibroblastic foci. FAPI PET SUVmax and SUVmean showed a positive correlation with the immunohistochemical FAP expression score (SUVmax: r = 0.57, P = 0.001; SUVmean: r = 0.54, P = 0.002). Conclusion: In this analysis conducted in patients who underwent lung transplantation after a FAPI PET scan, FAPI PET uptake was positively correlated with FAP immunohistochemistry. These findings provide a rationale for further investigation of FAPI PET as a potential imaging biomarker for ILD. Full Article
hem Association of Free-to-Total PSA Ratio and 18F-DCFPyL Prostate-Specific Membrane Antigen PET/CT Findings in Patients with Biochemical Recurrence After Radical Prostatectomy: A Prospective Single-Center Study By jnm.snmjournals.org Published On :: 2024-11-01T04:25:31-07:00 In Canada and across the globe, access to PSMA PET/CT is limited and expensive. For patients with biochemical recurrence (BCR) after treatment for prostate cancer, novel strategies are needed to better stratify patients who may or may not benefit from a PSMA PET scan. The role of the free-to-total prostate-specific antigen (PSA) ratio (FPSAR) in posttreatment prostate cancer, specifically in the PSMA PET/CT era, remains unknown. Our aim in this study was to determine the association of FPSAR in patients referred for 18F-DCFPyL PSMA PET/CT in the BCR setting and assess the correlation between FPSAR and 18F-DCFPyL PSMA PET/CT positivity (local recurrence or distant metastases). Methods: This prospective study included 137 patients who were referred for 18F-DCFPyL PSMA PET/CT and had BCR with a total PSA of less than 1 ng/mL after radical prostatectomy (RP) (including adjuvant or salvage radiotherapy). Blood samples were collected on the day of 18F-DCFPyL PSMA PET/CT. FPSAR was categorized as less than 0.10 or as 0.10 or more. A positive 18F-DCFPyL PSMA PET/CT scan was defined by a PROMISE classification lesion score of 2 or 3, irrespective of the site of increased tracer uptake (e.g., prostate, pelvic nodes, bone, or viscera). Results: Overall, 137 blood samples of patients with BCR after RP were analyzed to calculate FPSAR. The median age at 18F-DCFPyL PSMA PET/CT was 68.6 y (interquartile range, 63.0–72.4 y), and the median PSA at 18F-DCFPyL PSMA PET/CT was 0.3 ng/mL (interquartile range, 0.3–0.6 ng/mL). Eighty-six patients (62.8%) had an FPSAR of less than 0.10, whereas 51 patients (37.2%) had an FPSAR of 0.10 or more. An FPSAR of 0.10 or more was identified as an independent predictor of a positive 18F-DCFPyL PSMA PET/CT scan, with an odds ratio of 6.99 (95% CI, 2.96–16.51; P < 0.001). Conclusion: An FPSAR of 0.10 or more after RP independently correlated with increased odds of a positive 18F-DCFPyL PSMA PET/CT scan among BCR post-RP patients. These findings may offer an inexpensive method by which to triage access to 18F-DCFPyL PSMA PET/CT in jurisdictions where availability is not replete. Full Article
hem uPAR Immuno-PET in Pancreatic Cancer, Aging, and Chemotherapy-Induced Senescence By jnm.snmjournals.org Published On :: 2024-11-01T04:25:31-07:00 Identifying cancer therapy resistance is a key time-saving tool for physicians. Part of chemotherapy resistance includes senescence, a persistent state without cell division or cell death. Chemically inducing senescence with the combination of trametinib and palbociclib (TP) yields several tumorigenic and prometastatic factors in pancreatic cancer models with many potential antibody-based targets. In particular, urokinase plasminogen activator receptor (uPAR) has been shown to be a membrane-bound marker of senescence in addition to an oncology target. Methods: Here, 2 antibodies against murine uPAR and human uPAR were developed as immuno-PET agents to noninvasively track uPAR antigen abundance. Results: TP treatment increased cell uptake both in murine KPC cells and in human MiaPaCa2 cells. In vivo, subcutaneously implanted murine KPC tumors had high tumor uptake with the antimurine uPAR antibody independently of TP in young mice, yet uPAR uptake was maintained in aged mice on TP. Mice xenografted with human MiaPaCa2 tumors showed a significant increase in tumor uptake on TP therapy when imaged with the antihuman uPAR antibody. Imaging with either uPAR antibody was found to be more tumor-selective than imaging with [18F]FDG or [18F]F-DPA-714. Conclusion: The use of radiolabeled uPAR-targeting antibodies provides a new antibody-based PET imaging candidate for pancreatic cancer imaging as well as chemotherapy-induced senescence. Full Article
hem [18F]AlF-NOTA-FAPI-04 PET/CT for Predicting Pathologic Response of Resectable Esophageal Squamous Cell Carcinoma to Neoadjuvant Camrelizumab and Chemotherapy: A Phase II Clinical Trial By jnm.snmjournals.org Published On :: 2024-11-01T04:25:31-07:00 This single-center, single-arm, phase II trial (ChiCTR2100050057) investigated the ability of 18F-labeled fibroblast activation protein inhibitor ([18F]AlF-NOTA-FAPI-04, denoted as 18F-FAPI) PET/CT to predict the response to neoadjuvant camrelizumab plus chemotherapy (nCC) in locally advanced esophageal squamous cell carcinoma (LA-ESCC). Methods: This study included 32 newly diagnosed LA-ESCC participants who underwent 18F-FAPI PET/CT at baseline, of whom 23 also underwent scanning after 2 cycles of nCC. The participants underwent surgery after 2 cycles of nCC. Recorded PET parameters included maximum, peak, and mean SUVs and tumor-to-background ratios (TBRs), metabolic tumor volume, and total lesion FAP expression. PET parameters were compared between patient groups with good and poor pathologic responses, and the predictive performance for treatment response was analyzed. Results: The good and poor response groups each included 16 participants (16/32, 50.0%). On 18F-FAPI PET/CT, the posttreatment SUVs were significantly lower in good responders than in poor responders, whereas the changes in SUVs with treatment were significantly higher (all P < 0.05). SUVmax (area under the curve [AUC], 0.87; P = 0.0026), SUVpeak (AUC, 0.89; P = 0.0017), SUVmean (AUC, 0.88; P = 0.0021), TBRmax (AUC, 0.86; P = 0.0031), and TBRmean (AUC, 0.88; P = 0.0021) after nCC were significant predictors of pathologic response to nCC, with sensitivities of 63.64%–81.82% and specificities of 83.33%–100%. Changes in SUVmax (AUC, 0.81; P = 0.0116), SUVpeak (AUC, 0.82; P = 0.0097), SUVmean (AUC, 0.81; P = 0.0116), and TBRmean (AUC, 0.74; P = 0.0489) also were significant predictors of the pathologic response to nCC, with sensitivities and specificities in similar ranges. Conclusion: 18F-FAPI PET/CT parameters after treatment and their changes from baseline can predict the pathologic response to nCC in LA-ESCC participants. Full Article
hem Arterial Spin-Labeling Perfusion Lightbulb Sign: An Imaging Biomarker of Pediatric Posterior Fossa Hemangioblastoma [CLINICAL PRACTICE] By www.ajnr.org Published On :: 2024-11-07T15:14:12-08:00 BACKGROUND AND PURPOSE: Hemangioblastoma is a rare vascular tumor that occurs within the central nervous system in children. Differentiating hemangioblastoma from other posterior fossa tumors can be challenging on imaging, and preoperative diagnosis can change the neurosurgical approach. We hypothesize that a "lightbulb sign" on the arterial spin-labeling (ASL) sequence (diffuse homogeneous intense hyperperfusion within the solid component of the tumor) will provide additional imaging finding to differentiate hemangioblastoma from other posterior fossa tumors. MATERIALS AND METHODS: In this retrospective comparative observational study, we only included pathology-proved cases of hemangioblastoma, while the control group consisted of other randomly selected pathology-proved posterior fossa tumors from January 2022 to January 2024. Two blinded neuroradiologists analyzed all applicable MRI sequences, including ASL sequence if available. ASL was analyzed for the lightbulb sign. Disagreements between the radiologists were resolved by a third pediatric neuroradiologist. 2 and Fisher exact test were used to analyze the data. RESULTS: Ninety-five patients were enrolled in the study; 57 (60%) were boys. The median age at diagnosis was 8 years old (interquartile range: 3–14). Of the enrolled patients, 8 had hemangioblastoma, and 87 had other posterior fossa tumors, including medulloblastoma (n = 31), pilocytic astrocytoma (n = 23), posterior fossa ependymoma type A (n = 16), and other tumors (n = 17). The comparison of hemangioblastoma versus nonhemangioblastoma showed that peripheral edema (P = .02) and T2-flow void (P = .02) favor hemangioblastoma, whereas reduced diffusion (low ADC) (P = .002) and ventricular system extension (P = .001) favor nonhemangioblastoma tumors. Forty-two cases also had ASL perfusion sequences. While high perfusion favors hemangioblastoma (P = .03), the lightbulb sign shows a complete distinction because all the ASL series of hemangioblastoma cases (n = 4) showed the lightbulb sign, whereas none of the nonhemangioblastoma cases (n = 38) showed the sign (P < .001). CONCLUSIONS: Lightbulb-like intense and homogeneous hyperperfusion patterns on ASL are helpful in diagnosing posterior fossa hemangioblastoma in children. Full Article
hem Predictors and Outcomes of Periprocedural Intracranial Hemorrhage after Stenting for Symptomatic Intracranial Atherosclerotic Stenosis [CLINICAL PRACTICE] By www.ajnr.org Published On :: 2024-11-07T15:14:12-08:00 BACKGROUND AND PURPOSE: Periprocedural intracranial hemorrhage is one of common complications after stent placement for symptomatic intracranial atherosclerotic stenosis. This study was conducted to demonstrate predictors and long-term outcomes of periprocedural intracranial hemorrhage after stent placement for symptomatic intracranial atherosclerotic stenosis. MATERIALS AND METHODS: We retrospectively analyzed patients with symptomatic intracranial atherosclerotic stenosis stent placement in a prospective cohort at a high-volume stroke center. Clinical, radiologic, and periprocedural characteristics and long-term outcomes were reviewed. Periprocedural intracranial hemorrhage was classified as procedure-related hemorrhage (PRH) and non-procedure-related hemorrhage (NPRH). The long-term outcomes were compared between patients with PRH and NPRH, and the predictors of NPRH were explored. RESULTS: Among 1849 patients, 24 (1.3%) had periprocedural intracranial hemorrhage, including PRH (4) and NPRH (20). The postprocedural 30-day mRS was 0–2 in 9 (37.5%) cases, 3–5 in 5 (20.8%) cases, and 6 in 10 (41.7%) cases. For the 14 survivors, the long-term (median of 78 months) mRS were 0–2 in 10 (76.9%) cases and 3–5 in 3 (23.1%) cases. The proportion of poor long-term outcomes (mRS ≥3) in patients with NPRH was significantly higher than those with PRH (68.4% versus 0%, P = .024). Anterior circulation (P = .002), high preprocedural stenosis rate (P < .001), and cerebral infarction within 30 days (P = .006) were independent predictors of NPRH after stent placement. CONCLUSIONS: Patients with NPRH had worse outcomes than those with PRH after stent placement for symptomatic ICAS. Anterior circulation, severe preprocedural stenosis, and recent infarction are independent predictors of NPRH. Full Article
hem Intra-Aneurysmal High-Resolution 4D MR Flow Imaging for Hemodynamic Imaging Markers in Intracranial Aneurysm Instability [RESEARCH] By www.ajnr.org Published On :: 2024-11-07T15:14:12-08:00 BACKGROUND AND PURPOSE: Prediction of aneurysm instability is crucial to guide treatment decisions and to select appropriate patients with unruptured intracranial aneurysms (IAs) for preventive treatment. High-resolution 4D MR flow imaging and 3D quantification of aneurysm morphology could offer insights and new imaging markers for aneurysm instability. In this cross-sectional study, we aim to identify 4D MR flow imaging markers for aneurysm instability by relating hemodynamics in the aneurysm sac to 3D morphologic proxy parameters for aneurysm instability. MATERIALS AND METHODS: In 35 patients with 37 unruptured IAs, a 3T MRA and a 7T 4D MRI flow scan were performed. Five hemodynamic parameters—peak-systolic wall shear stress (WSSMAX) and time-averaged wall shear stress (WSSMEAN), oscillatory shear index (OSI), mean velocity, and velocity pulsatility index—were correlated to 6 3D morphology proxy parameters of aneurysm instability—major axis length, volume, surface area (all 3 size parameters), flatness, shape index, and curvedness—by Pearson correlation with 95% CI. Scatterplots of hemodynamic parameters that correlated with IA size (major axis length) were created. RESULTS: WSSMAX and WSSMEAN correlated negatively with all 3 size parameters (strongest for WSSMEAN with volume (r = –0.70, 95% CI –0.83 to –0.49) and OSI positively (strongest with major axis length [r = 0.87, 95% CI 0.76–0.93]). WSSMAX and WSSMEAN correlated positively with shape index (r = 0.61, 95% CI 0.36–0.78 and r = 0.49, 95% CI 0.20–0.70, respectively) and OSI negatively (r = –0.82, 95% CI –0.9 to –0.68). WSSMEAN and mean velocity correlated negatively with flatness (r = –0.35, 95% CI –0.61 to –0.029 and r = –0.33, 95% CI –0.59 to 0.007, respectively) and OSI positively (r = 0.54, 95% CI 0.26–0.74). Velocity pulsatility index did not show any statistically relevant correlation. CONCLUSIONS: Out of the 5 included hemodynamic parameters, WSSMAX, WSSMEAN, and OSI showed the strongest correlation with morphologic 3D proxy parameters of aneurysm instability. Future studies should assess these promising new imaging marker parameters for predicting aneurysm instability in longitudinal cohorts of patients with IA. Full Article
hem Common clonal origin of three distinct hematopoietic neoplasms in a single patient: B-cell lymphoma, T-cell lymphoma, and polycythemia vera [RESEARCH ARTICLE] By molecularcasestudies.cshlp.org Published On :: 2024-01-10T08:13:38-08:00 The potential for more than one distinct hematolymphoid neoplasm to arise from a common mutated stem or precursor cell has been proposed based on findings in primary human malignancies. Particularly, angioimmunoblastic T-cell lymphoma (AITL), which shares a somatic mutation profile in common with other hematopoietic malignancies, has been reported to occur alongside myeloid neoplasms or clonal B-cell proliferations, with identical mutations occurring in more than one cell lineage. Here we report such a case of an elderly woman who was diagnosed over a period of 8 years with diffuse large B-cell lymphoma, polycythemia vera, and AITL, each harboring identical somatic mutations in multiple genes. Overall, at least five identical nucleotide mutations were shared across multiple specimens, with two identical mutations co-occurring at variable variant allele frequencies in all three specimen types. These findings lend credence to the theory that a common mutated stem cell could give rise to multiple neoplasms through parallel hematopoietic differentiation pathways. Full Article
hem Medicines prescribed elsewhere: don’t forget to record them in the GP record! By bjgp.org Published On :: 2024-10-31T16:05:26-07:00 Full Article
hem Refractory annular erythema in a 58-year-old woman [Practice] By www.cmaj.ca Published On :: 2024-11-11T21:05:15-08:00 Full Article
hem The CheckMate 816 trial: a milestone in neoadjuvant chemoimmunotherapy of nonsmall cell lung cancer By breathe.ersjournals.com Published On :: 2024-11-12T00:25:08-08:00 Advancements in immunotherapy in the perioperative setting have revolutionised the treatment of resectable nonsmall cell lung cancer (NSCLC). Here we present the methodology and results of the clinical trial CheckMate 816 demonstrating the benefit of neoadjuvant therapy with nivolumab plus chemotherapy compared with chemotherapy alone. Furthermore, this article discusses the implications for future practice in resectable NSCLC and the need for future research. Full Article
hem Squid Game Season 2 Will Be All About Divisions—and the Fight to Overcome Them By gizmodo.com Published On :: Wed, 13 Nov 2024 01:00:24 +0000 Netflix's mega-violent mega-hit series returns December 26. Full Article Television Netflix Squid Game
hem City of Vancouver to lowest paid workers: Let them eat cuts! By rabble.ca Published On :: Tue, 07 Nov 2023 16:50:27 +0000 The City of Vancouver council has reneged on a previous commitment to a living wage for its employees. The post City of Vancouver to lowest paid workers: Let them eat cuts! appeared first on rabble.ca. Full Article Canadian Politics Economy
hem RPG Cast – Episode 588: “Nintendo Leaked Themselves” By rpgamer.com Published On :: Sat, 12 Jun 2021 19:28:07 +0000 On this week's show, Chris is going through his failed Kickstarters; Anna Marie is off banging a ghost, which was fun; Kelley is collecting wheels of cheese in Skyrim; Josh is lookin' fly in his Yakuza shoes; and Alex wonders why he didn't just skip this week and write more E3 stories. The post RPG Cast – Episode 588: “Nintendo Leaked Themselves” appeared first on RPGamer. Full Article News Podcasts RPG Cast Edge of Eternity Final Fantasy VII Remake Final Fantasy XIV: Stormblood The Elder Scrolls Online
hem RPG Cast – Episode 596: “I’m Not Into Tails Unless I’m Shooting Them Out of a Cannon” By rpgamer.com Published On :: Sat, 14 Aug 2021 17:44:45 +0000 Josh wishes on a monkey paw and gets a new Shining Force game. Chris's body isn't ready for Death's Door. And no expects the shadow drop of Boyfriend Dungeon. The post RPG Cast – Episode 596: “I’m Not Into Tails Unless I’m Shooting Them Out of a Cannon” appeared first on RPGamer. Full Article News Podcasts RPG Cast Disgaea 6 Fuga: Melodies of Steel
hem RPG Cast – Episode 643: “Kinky Chemical Engineer” By rpgamer.com Published On :: Sat, 20 Aug 2022 18:06:59 +0000 Congested Kelley goes HONK! Chris runs over old people in GTA while distracting Anna Marie with Octopath. RPGamer tip of the week: If your game has more than 12 currencies, it's main stream. The post RPG Cast – Episode 643: “Kinky Chemical Engineer” appeared first on RPGamer. Full Article News Podcasts RPG Cast Mary Skelter: Nightmares Octopath Traveler: Champions of the Continent Sakuna: Of Rice and Ruin Xenoblade Chronicles 3
hem RPG Cast – Episode 669: “The 1 of 1 Ring to Rule Them All” By rpgamer.com Published On :: Sat, 25 Mar 2023 18:57:31 +0000 Chris walks in on Anna playing Tactics Ogre. Alex is head of the elemental winds. And Kelley's cat stole a banana. The post RPG Cast – Episode 669: “The 1 of 1 Ring to Rule Them All” appeared first on RPGamer. Full Article News Podcasts RPG Cast Diablo III Diablo IV Path of Exile The Outer Worlds Valkyrie Profile: Silmeria
hem Super Nintendo World Direct Dives Into the Donkey Kong Country-Themed Land By www.vgchartz.com Published On :: Mon, 11 Nov 2024 22:51:40 GMT Nintendo today hosted a Super Nintendo World Direct livestream that featured Shigeru Miyamoto giving a deep dive look into the Donkey Kong Country-themed land. The new land will feature a family roller coaster, called Mine-Cart Madness, congas you can hit to a rhythm, letters that can found throughout the land that can be scanned on the new Donkey Kong Power-Up Band, character meet and greets, and new food options. Donkey Kong Country will open at Universal Studios Japan on December 11, 2024, and will also be a part of Super Nintendo World at Epic Universe in Florida when the theme park opens in May 2025. View the Direct below: A life-long and avid gamer, William D'Angelo was first introduced to VGChartz in 2007. After years of supporting the site, he was brought on in 2010 as a junior analyst, working his way up to lead analyst in 2012 and taking over the hardware estimates in 2017. He has expanded his involvement in the gaming community by producing content on his own YouTube channel and Twitch channel. You can contact the author on Twitter @TrunksWD.Full Article - https://www.vgchartz.com/article/463038/super-nintendo-world-direct-dives-into-the-donkey-kong-country-themed-land/ Full Article Analysis Charts Industry
hem Tegan and Sara: The Pop-Rock Twins Driven Mad by a Wild Catfishing Scheme By www.thedailybeast.com Published On :: Thu, 17 Oct 2024 09:00:00 GMT Photo Illustration by Thomas Levinson/The Daily Beast/Getty/HuluOnline interactions are based on trust, since there are few definitive ways to certify the identity of the person with whom one is communicating. Naturally, this situation can lead to deception and manipulation, as it has—to tormenting effect—for Tegan and Sara, the popular indie rock duo whose lives have been turned upside down by a mysterious bad faith actor who, for more than a decade, has impersonated Tegan with fans, friends, and business partners.Fanatical: The Catfishing of Tegan and Sara is an investigation into the myriad means by which the internet can be wielded to nefarious ends. More than that, though, it’s an anatomy of a crime and the complicated wreckage wrought by it, not just for the famous artists but also for the innocent admirers who were tricked into believing that fiction was reality.Premiering on Hulu on Oct. 18, following its premiere at the Toronto International Film Festival, Erin Lee Carr’s documentary is a chilling snapshot of the unholy marriage of corrosive fandom and online duplicity. At its center are Tegan and Sara, the identical twin songstresses who began making a name for themselves in the early 2000s both for their talent and for being openly gay. This earned them a loyal fanbase of queer women and men who saw themselves reflected in Tegan and Sara, and that bond was strengthened by the siblings’ active interest in interacting with fans in person—Tegan would chat with show attendees in line and at the merch table—and on LiveJournal and other budding message-board platforms that afforded a previously unavailable degree of contact.Read more at The Daily Beast. Full Article
hem Planet Coaster 2 is out now, adding water slides and pools to the theme park construction sim By www.rockpapershotgun.com Published On :: Wed, 06 Nov 2024 20:50:22 +0000 We'll have a review of Planet Coaster 2 soon, but I keep making Brendy do other tasks so he's not had enough time yet to ride the rails. That means it falls to me to at least let you know that Frontier's theme park builder is out now. Read more Full Article Simulation PC PS5 Xbox Series X/S Planet Coaster 2 Management
hem WATCH: NFL commissioner says players ‘should stand for the national anthem’ By www.pbs.org Published On :: Wed, 18 Oct 2017 17:35:03 +0000 NFL Commissioner Roger Goodell held a news conference today after the second day of the annual owners meeting. Watch his remarks in the player above. NFL players will be encouraged to stand for the national anthem at the start of the football games, the league’s chief told reporters today. After two days of meeting with owners of each NFL team, representatives for the players’ union and players themselves, the NFL has reiterated its decision to keep its existing policy of not requiring players to stand during the anthem. Goodell said yesterday that the league wouldnot instate a rule that would penalize players who refuse to stand for the anthem. RELATED LINKSColumn: For black athletes, wealth doesn’t equal freedom NFL players team up in defiance and solidarity Column: As ‘America’s sport,’ the NFL cannot escape politics “We believe everyone should stand for the national anthem,” he told reporters at a news conference today. “That’s an important part of our policy. It’s also an important part of our game that we all take great pride in. And it’s also important for us to honor our flag and our country and I think our fans expect us to do that.” Goodell’s remarks came after President Donald Trump continued his criticism of the NFL this morning. On Twitter, Trump said: “The NFL has decided that it will not force players to stand for the playing of our National Anthem. Total disrespect for our great country!” After former San Francisco 49ers quarterback Colin Kaepernick kneeled during the anthem last year to protest police killings of unarmed black men, dozens of other players joined him to draw greater attention to social and racial injustice. Last month, Trump said the NFL ought to fire players who didn’t stand for the anthem. The players “are not doing this in any way to be disrespectful to the flag,” Goodell said today. “But they also understand how it’s being interpreted.” Goodell also said the league wanted to stay out of the political arena over the issue. “We’re not looking to get into politics,” he told reporters. “What we’re looking to do is to continue to get people focused on football.” The post WATCH: NFL commissioner says players ‘should stand for the national anthem’ appeared first on PBS NewsHour. Full Article national anthem nfl Roger Goodell
hem Complex chemicals found on Enceladus improve prospects for life By www.newscientist.com Published On :: Fri, 13 Sep 2024 15:00:12 +0100 The Cassini mission’s samples from Saturn’s moon Enceladus have signs of various organic molecules that could be among the ingredients needed for life to get started Full Article
hem Understated sci-fi drama traverses themes of immigration and identity By www.newscientist.com Published On :: Wed, 16 Oct 2024 19:00:00 +0100 Moin Hussain's debut feature film Sky Peals sees a man discover his father may be from outer space. Part sci-fi, part family drama, part coming-of-age tale, it is odd and otherworldly Full Article
hem Robot dog can stifle weeds by blasting them with a blowtorch By www.newscientist.com Published On :: Tue, 23 Jul 2024 16:00:52 +0100 A Spot robot equipped with a blowtorch can locate weeds on farms and precisely heat them up to stop them growing, offering a possible alternative to herbicides Full Article
hem A skilful primer makes sense of the mathematics beneath AI's hood By www.newscientist.com Published On :: Wed, 24 Jul 2024 19:00:00 +0100 Anil Ananthaswamy's Why Machines Learn: The elegant maths behind modern AI explores the mechanics of the AI revolution, but doesn't examine its ethics Full Article
hem DeepMind AI gets silver medal at International Mathematical Olympiad By www.newscientist.com Published On :: Thu, 25 Jul 2024 17:40:39 +0100 AlphaProof, an AI from Google DeepMind, came close to matching the top participants in a prestigious competition for young mathematicians Full Article
hem Top scams targeting our military heroes and how to avoid them By www.foxnews.com Published On :: Mon, 11 Nov 2024 10:00:57 -0500 Shameless scammers trick veterans into giving personal info or cash. Tech expert Kurt “CyberGuy" Knutsson explores five common scams. Full Article b0a0f34a-2596-5feb-9750-e591135bb927 fnc Fox News fox-news/tech fox-news/tech/topics/security fox-news/tech/topics/privacy fox-news/tech/topics/cybercrime fox-news/us fox-news/us/crime fox-news/us/military fox-news/us/military/veterans fox-news/tech article
hem Sportswomen deserve statues too – and why wait to put them up? By www.telegraph.co.uk Published On :: Tue, 15 Jun 2021 07:00:00 GMT Full Article topics:organisations/england-womens-football-team structure:sport structure:womens-sport storytype:comment
hem Crocodiles baited with 'nausea-inducing chemical' to prevent them from eating toxic, invasive toad By www.foxnews.com Published On :: Fri, 16 Aug 2024 19:36:27 -0400 Scientists in Australia are boosting the country's dwindling freshwater crocodile numbers by getting the animals to stop eating a poisonous toad. Full Article 4e478891-8905-5294-9d5a-f9b830d2a121 fnc Fox News fox-news/science fox-news/world/world-regions/australia fox-news/science/wild-nature/reptiles fox-news/science article
hem Police seeking cruel yobs who filmed themselves harming animals By www.express.co.uk Published On :: Tue, 12 Nov 2024 19:03:00 +0000 Police are hunting laughing yobs who filmed themselves hurling a cat off a bridge and posted the video on Snapchat. Full Article UK
hem Flu viruses have evolved proteins that let them break through mucus By www.newscientist.com Published On :: Mon, 28 Oct 2024 19:00:05 +0000 Computer simulations of how influenza A moves through human mucus found it is ideally configured to slide through the sticky stuff on its way to infecting cells Full Article