ca One Dose of HPV Vaccine May Protect Against Cervical Cancer By www.medicinenet.com Published On :: Mon, 10 Feb 2020 00:00:00 PDT Title: One Dose of HPV Vaccine May Protect Against Cervical CancerCategory: Health NewsCreated: 2/10/2020 12:00:00 AMLast Editorial Review: 2/10/2020 12:00:00 AM Full Article
ca Can Men Dine Their Way to Higher Sperm Counts? By www.medicinenet.com Published On :: Mon, 24 Feb 2020 00:00:00 PDT Title: Can Men Dine Their Way to Higher Sperm Counts?Category: Health NewsCreated: 2/21/2020 12:00:00 AMLast Editorial Review: 2/24/2020 12:00:00 AM Full Article
ca Pick Summer Camps Carefully When Your Kid Has Allergies, Asthma By www.medicinenet.com Published On :: Mon, 2 Mar 2020 00:00:00 PDT Title: Pick Summer Camps Carefully When Your Kid Has Allergies, AsthmaCategory: Health NewsCreated: 2/29/2020 12:00:00 AMLast Editorial Review: 3/2/2020 12:00:00 AM Full Article
ca How Pets Can Be True Lifesavers for Seniors By www.medicinenet.com Published On :: Fri, 3 Apr 2020 00:00:00 PDT Title: How Pets Can Be True Lifesavers for SeniorsCategory: Health NewsCreated: 4/3/2020 12:00:00 AMLast Editorial Review: 4/3/2020 12:00:00 AM Full Article
ca Welcome to the 'Smart Toilet' That Can Spot Disease By www.medicinenet.com Published On :: Fri, 17 Apr 2020 00:00:00 PDT Title: Welcome to the 'Smart Toilet' That Can Spot DiseaseCategory: Health NewsCreated: 4/17/2020 12:00:00 AMLast Editorial Review: 4/17/2020 12:00:00 AM Full Article
ca How Long Does a Laparoscopic Nissen Fundoplication Last? By www.medicinenet.com Published On :: Wed, 29 Apr 2020 00:00:00 PDT Title: How Long Does a Laparoscopic Nissen Fundoplication Last?Category: Procedures and TestsCreated: 4/29/2020 12:00:00 AMLast Editorial Review: 4/29/2020 12:00:00 AM Full Article
ca Got Flu? Deal Quickly With Complications By www.medicinenet.com Published On :: Mon, 3 Feb 2020 00:00:00 PDT Title: Got Flu? Deal Quickly With ComplicationsCategory: Health NewsCreated: 2/2/2020 12:00:00 AMLast Editorial Review: 2/3/2020 12:00:00 AM Full Article
ca Many Car Crash Deaths Involve Alcohol Levels Below Legal Limit: Study By www.medicinenet.com Published On :: Tue, 17 Mar 2020 00:00:00 PDT Title: Many Car Crash Deaths Involve Alcohol Levels Below Legal Limit: StudyCategory: Health NewsCreated: 3/16/2020 12:00:00 AMLast Editorial Review: 3/17/2020 12:00:00 AM Full Article
ca The Doctor Gap: In Areas of Greatest Need, Primary Care Is a Team Effort By www.medicinenet.com Published On :: Fri, 20 Mar 2020 00:00:00 PDT Title: The Doctor Gap: In Areas of Greatest Need, Primary Care Is a Team EffortCategory: Health NewsCreated: 3/19/2020 12:00:00 AMLast Editorial Review: 3/20/2020 12:00:00 AM Full Article
ca Ride-Sharing Services Tied to Rise in Car Crashes By www.medicinenet.com Published On :: Wed, 8 Apr 2020 00:00:00 PDT Title: Ride-Sharing Services Tied to Rise in Car CrashesCategory: Health NewsCreated: 4/7/2020 12:00:00 AMLast Editorial Review: 4/8/2020 12:00:00 AM Full Article
ca Broiling in a Heat Wave? Wet T-shirt Can Safely Cool You Down By www.medicinenet.com Published On :: Tue, 14 Apr 2020 00:00:00 PDT Title: Broiling in a Heat Wave? Wet T-shirt Can Safely Cool You DownCategory: Health NewsCreated: 4/13/2020 12:00:00 AMLast Editorial Review: 4/14/2020 12:00:00 AM Full Article
ca Replace That Old Carpet to Shield Your Kids From Toxins By www.medicinenet.com Published On :: Thu, 30 Apr 2020 00:00:00 PDT Title: Replace That Old Carpet to Shield Your Kids From ToxinsCategory: Health NewsCreated: 4/29/2020 12:00:00 AMLast Editorial Review: 4/30/2020 12:00:00 AM Full Article
ca When Booze Labels Carry Health Warnings, Drinking Declines: Study By www.medicinenet.com Published On :: Mon, 4 May 2020 00:00:00 PDT Title: When Booze Labels Carry Health Warnings, Drinking Declines: StudyCategory: Health NewsCreated: 5/4/2020 12:00:00 AMLast Editorial Review: 5/4/2020 12:00:00 AM Full Article
ca Tukysa Approved for Unresectable, Metastatic HER2-Positive Breast Cancer By www.medicinenet.com Published On :: Tue, 21 Apr 2020 00:00:00 PDT Title: Tukysa Approved for Unresectable, Metastatic HER2-Positive Breast CancerCategory: Health NewsCreated: 4/20/2020 12:00:00 AMLast Editorial Review: 4/21/2020 12:00:00 AM Full Article
ca Parent or Sibling With Colon Cancer? You May Need Colonoscopy Earlier By www.medicinenet.com Published On :: Tue, 21 Apr 2020 00:00:00 PDT Title: Parent or Sibling With Colon Cancer? You May Need Colonoscopy EarlierCategory: Health NewsCreated: 4/20/2020 12:00:00 AMLast Editorial Review: 4/21/2020 12:00:00 AM Full Article
ca Bacterial Blood Infections Tied to Heightened Colon Cancer Risk By www.medicinenet.com Published On :: Thu, 23 Apr 2020 00:00:00 PDT Title: Bacterial Blood Infections Tied to Heightened Colon Cancer RiskCategory: Health NewsCreated: 4/22/2020 12:00:00 AMLast Editorial Review: 4/23/2020 12:00:00 AM Full Article
ca FDA Approves Trodelvy for Metastatic Triple-Negative Breast Cancer By www.medicinenet.com Published On :: Fri, 24 Apr 2020 00:00:00 PDT Title: FDA Approves Trodelvy for Metastatic Triple-Negative Breast CancerCategory: Health NewsCreated: 4/24/2020 12:00:00 AMLast Editorial Review: 4/24/2020 12:00:00 AM Full Article
ca Could AI Help Doctors Map Out Treatments for Brain Cancers? By www.medicinenet.com Published On :: Mon, 27 Apr 2020 00:00:00 PDT Title: Could AI Help Doctors Map Out Treatments for Brain Cancers?Category: Health NewsCreated: 4/24/2020 12:00:00 AMLast Editorial Review: 4/27/2020 12:00:00 AM Full Article
ca Kyprolis (carfilzomib) By www.medicinenet.com Published On :: Mon, 27 Apr 2020 00:00:00 PDT Title: Kyprolis (carfilzomib)Category: MedicationsCreated: 4/27/2020 12:00:00 AMLast Editorial Review: 4/27/2020 12:00:00 AM Full Article
ca Shun the Sun to Prevent Skin Cancer By www.medicinenet.com Published On :: Mon, 4 May 2020 00:00:00 PDT Title: Shun the Sun to Prevent Skin CancerCategory: Health NewsCreated: 5/2/2020 12:00:00 AMLast Editorial Review: 5/4/2020 12:00:00 AM Full Article
ca Obamacare May Have Boosted Use of Mammograms By www.medicinenet.com Published On :: Mon, 4 May 2020 00:00:00 PDT Title: Obamacare May Have Boosted Use of MammogramsCategory: Health NewsCreated: 5/1/2020 12:00:00 AMLast Editorial Review: 5/4/2020 12:00:00 AM Full Article
ca Fewer Kids in Cancer Trials, Which Might Not Be a Bad Thing By www.medicinenet.com Published On :: Wed, 6 May 2020 00:00:00 PDT Title: Fewer Kids in Cancer Trials, Which Might Not Be a Bad ThingCategory: Health NewsCreated: 5/5/2020 12:00:00 AMLast Editorial Review: 5/6/2020 12:00:00 AM Full Article
ca Unplugging From Social Media on Vacation? It's Tough at First By www.medicinenet.com Published On :: Wed, 14 Aug 2019 00:00:00 PDT Title: Unplugging From Social Media on Vacation? It's Tough at FirstCategory: Health NewsCreated: 8/14/2019 12:00:00 AMLast Editorial Review: 8/14/2019 12:00:00 AM Full Article
ca Health Tip: Planning a Stress-Reducing Vacation By www.medicinenet.com Published On :: Fri, 18 Oct 2019 00:00:00 PDT Title: Health Tip: Planning a Stress-Reducing VacationCategory: Health NewsCreated: 10/18/2019 12:00:00 AMLast Editorial Review: 10/18/2019 12:00:00 AM Full Article
ca Some Cities' Smog Can Ruin Your Vacation By www.medicinenet.com Published On :: Tue, 3 Dec 2019 00:00:00 PDT Title: Some Cities' Smog Can Ruin Your VacationCategory: Health NewsCreated: 12/3/2019 12:00:00 AMLast Editorial Review: 12/3/2019 12:00:00 AM Full Article
ca Too Much Super Bowl Can Mean Too Little Sleep By www.medicinenet.com Published On :: Fri, 31 Jan 2020 00:00:00 PDT Title: Too Much Super Bowl Can Mean Too Little SleepCategory: Health NewsCreated: 1/31/2020 12:00:00 AMLast Editorial Review: 1/31/2020 12:00:00 AM Full Article
ca Spring Time Change Tied to More Fatal Car Crashes By www.medicinenet.com Published On :: Fri, 31 Jan 2020 00:00:00 PDT Title: Spring Time Change Tied to More Fatal Car CrashesCategory: Health NewsCreated: 1/30/2020 12:00:00 AMLast Editorial Review: 1/31/2020 12:00:00 AM Full Article
ca Restful Romance: Smelling Your Lover's Shirt Can Help You Sleep By www.medicinenet.com Published On :: Fri, 14 Feb 2020 00:00:00 PDT Title: Restful Romance: Smelling Your Lover's Shirt Can Help You SleepCategory: Health NewsCreated: 2/14/2020 12:00:00 AMLast Editorial Review: 2/14/2020 12:00:00 AM Full Article
ca Phase I Dose-Escalation and -Expansion Study of Telisotuzumab (ABT-700), an Anti-c-Met Antibody, in Patients with Advanced Solid Tumors By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 This first-in-human phase I study evaluated the pharmacokinetics, safety, and preliminary efficacy of telisotuzumab, formerly called ABT-700, an antagonistic antibody directed against c-Met. For dose escalation (3+3 design), 3 to 6 patients with advanced solid tumors were enrolled into four dose cohorts (5–25 mg/kg). In the dose-expansion phase, a subset of patients was prospectively selected for MET amplification (FISH screening). Patients received telisotuzumab intravenously on day 1 every 21 days. For dose expansion, 15 mg/kg was chosen as the dose on the basis of safety, pharmacokinetics, and other data from the escalation cohorts. Forty-five patients were enrolled and received at least one dose of telisotuzumab (dose escalation, n = 15; dose expansion, n = 30). Telisotuzumab showed a linear pharmacokinetics profile; peak plasma concentration was proportional to dose level. There were no acute infusion reactions and no dose-limiting toxicities were observed. The most common treatment-related adverse events included hypoalbuminemia (n = 9, 20.0%) and fatigue (n = 5, 11.1%). By Response Evaluation Criteria In Solid Tumors (RECIST), 4 of 10 (40.0%) patients with MET-amplified tumors had confirmed partial response in target lesions (one ovarian, two gastric, and one esophageal), two (20.0%) had stable disease, three (30.0%) had progressive disease; one patient was unable to be evaluated. Among patients with nonamplified tumors (n = 35), no objective responses were observed; however, 11 patients had stable disease per RECIST criteria. In conclusion, telisotuzumab has an acceptable safety profile with clinical activity observed in patients with MET-amplified advanced solid tumors. Full Article
ca Long Noncoding RNA MALAT1 Contributes to Sorafenib Resistance by Targeting miR-140-5p/Aurora-A Signaling in Hepatocellular Carcinoma By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 Long noncoding RNAs (lncRNA) have been found to play critical roles in tumorigenesis and the development of various cancers, including hepatocellular carcinoma (HCC). Metastasis associated with lung adenocarcinoma transcript-1 (MALAT1) has been identified as an oncogene and prognostic biomarker in HCC. Here, we demonstrated that MALAT1 expression was obviously high in sorafenib-resistant HCC cells. Furthermore, knockdown of MALAT1 increased sorafenib sensitivity in nonresponsive HCC cells, whereas forced expression of MALAT1 conferred sorafenib resistance to responsive HCC cells in vitro. In addition, loss/gain-of-function assays revealed that MALAT1 promoted cell proliferation, migration, and epithelial–mesenchymal transition in HCC cells. Mechanistically, MALAT1 regulated Aurora-A expression by sponging miR-140-5p, thus promoting sorafenib resistance in HCC cells. Moreover, MALAT1 inhibition enhanced the antitumor efficacy of sorafenib in vivo. Clinically, we found that MALAT1 expression was negatively correlated with miR-140-5p expression but positively correlated with Aurora-A expression in patients with HCC and that upregulated MALAT1 was closely correlated with poor survival outcomes in patients with HCC. These findings indicated that MALAT1 may be a novel target for prognosis prediction and therapeutic strategies in patients with HCC treated with sorafenib. Full Article
ca SLFN11 Expression in Advanced Prostate Cancer and Response to Platinum-based Chemotherapy By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 Expression of the DNA/RNA helicase schlafen family member 11 (SLFN11) has been identified as a sensitizer of tumor cells to DNA-damaging agents including platinum chemotherapy. We assessed the impact of SLFN11 expression on response to platinum chemotherapy and outcomes in patients with metastatic castration-resistant prostate cancer (CRPC). Tumor expression of SLFN11 was assessed in 41 patients with CRPC treated with platinum chemotherapy by RNA sequencing (RNA-seq) of metastatic biopsy tissue (n = 27) and/or immunofluorescence in circulating tumor cells (CTC; n = 20). Cox regression and Kaplan–Meier methods were used to evaluate the association of SLFN11 expression with radiographic progression-free survival (rPFS) and overall survival (OS). Multivariate analysis included tumor histology (i.e., adenocarcinoma or neuroendocrine) and the presence or absence of DNA repair aberrations. Patient-derived organoids with SLFN11 expression and after knockout by CRISPR-Cas9 were treated with platinum and assessed for changes in dose response. Patients were treated with platinum combination (N = 38) or platinum monotherapy (N = 3). Median lines of prior therapy for CRPC was two. Median OS was 8.7 months. Overexpression of SLFN11 in metastatic tumors by RNA-seq was associated with longer rPFS compared with those without overexpression (6.9 vs. 2.8 months, HR = 3.72; 95% confidence interval (CI), 1.56–8.87; P < 0.001); similar results were observed for patients with SLFN11-positive versus SLFN11-negative CTCs (rPFS 6.0 vs. 2.2 months, HR = 4.02; 95% CI, 0.77–20.86; P = 0.002). A prostate-specific antigen (PSA) decline of ≥50% was observed in all patients with SLFN11 overexpression. No association was observed between SLFN11 expression and OS. On multivariable analysis, SLFN11 was an independent factor associated with rPFS on platinum therapy. Platinum response of organoids expressing SLFN11 was reduced after SLFN11 knockout. Our data suggest that SLFN11 expression might identify patients with CRPC with a better response to platinum chemotherapy independent of histology or other genomic alterations. Additional studies, also in the context of PARP inhibitors, are warranted. Full Article
ca Elucidation of Pelareorep Pharmacodynamics in A Phase I Trial in Patients with KRAS-Mutated Colorectal Cancer By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 KRAS mutation is a negative predictive biomarker of anti-EGFR agents in patients with metastatic colorectal cancer (mCRC), and remains an elusive target. Pelareorep, a double-stranded RNA virus selectively replicates in KRAS-mutated cells, and is synergistic with irinotecan. A dose escalation trial of FOLFIRI/bevacizumab [irinotecan (150–180 mg/m2) and pelareorep (1 x 1010 TCID50–3 x 1010 TCID50)] was implemented in adult patients with oxaliplatin refractory/intolerant, KRAS-mutant mCRC. Pelareorep was administered intravenously over 1 hour on days 1–5 every 4 weeks. Additional studies included pharmacokinetics, tumor morphology, and immune responses. Among FOLFIRI-naïve patients, the highest dose of FOLFIRI/bevacizumab (180 mg/m2 irinotecan) and pelareorep (3 x 1010 TCID50) was well tolerated, without a dose-limiting toxicity. At the recommended phase II dose, 3 of 6 patients (50%) had a partial response; the median progression-free and overall survival (PFS, OS) were 65.6 weeks and 25.1 months, respectively. Toxicities included myelosuppression, fatigue, and diarrhea. Transmission electron microscopy revealed viral factories (viral collections forming vesicular structures), at various stages of development. Immunogold staining against viral capsid -1 protein demonstrated viral "homing" in the tumor cells. The nucleus displayed sufficient euchromatin regions suggestive of active transcription. Flow cytometry revealed rapid dendritic cell maturation (48 hours) with subsequent activation of cytotoxic T cells (7 days). The combination of pelareorep with FOLFIRI/bevacizumab is safe. The PFS and OS data are encouraging and deserve further exploration. Pelareorep leads to a clear recurrent immune stimulatory response with cytotoxic T-cell activation, and homes and replicates in the tumor. Full Article
ca Identification of ALDH1A3 as a Viable Therapeutic Target in Breast Cancer Metastasis-Initiating Cells By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 The development of efficacious therapies targeting metastatic spread of breast cancer to the brain represents an unmet clinical need. Accordingly, an improved understanding of the molecular underpinnings of central nervous system spread and progression of breast cancer brain metastases (BCBM) is required. In this study, the clinical burden of disease in BCBM was investigated, as well as the role of aldehyde dehydrogenase 1A3 (ALDH1A3) in the metastatic cascade leading to BCBM development. Initial analysis of clinical survival trends for breast cancer and BCBM determined improvement of breast cancer survival rates; however, this has failed to positively affect the prognostic milestones of triple-negative breast cancer (TNBC) brain metastases (BM). ALDH1A3 and a representative epithelial–mesenchymal transition (EMT) gene signature (mesenchymal markers, CD44 or Vimentin) were compared in tumors derived from BM, lung metastases (LM), or bone metastases (BoM) of patients as well as mice after injection of TNBC cells. Selective elevation of the EMT signature and ALDH1A3 were observed in BM, unlike LM and BoM, especially in the tumor edge. Furthermore, ALDH1A3 was determined to play a role in BCBM establishment via regulation of circulating tumor cell adhesion and migration phases in the BCBM cascade. Validation through genetic and pharmacologic inhibition of ALDH1A3 via lentiviral shRNA knockdown and a novel small-molecule inhibitor demonstrated selective inhibition of BCBM formation with prolonged survival of tumor-bearing mice. Given the survival benefits via targeting ALDH1A3, it may prove an effective therapeutic strategy for BCBM prevention and/or treatment. Full Article
ca Inhibition of Importin {beta}1 Augments the Anticancer Effect of Agonistic Anti-Death Receptor 5 Antibody in TRAIL-resistant Tumor Cells By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 TNF-related apoptosis-inducing ligand (TRAIL) and an agonistic antibody against the death-inducing TRAIL receptor 5, DR5, are thought to selectively induce tumor cell death and therefore, have gained attention as potential therapeutics currently under investigation in several clinical trials. However, some tumor cells are resistant to TRAIL/DR5–induced cell death, even though they express DR5. Previously, we reported that DR5 is transported into the nucleus by importin β1, and knockdown of importin β1 upregulates cell surface expression of DR5 resulting in increased TRAIL sensitivity in vitro. Here, we examined the impact of importin β1 knockdown on agonistic anti-human DR5 (hDR5) antibody therapy. Drug-inducible importin β1 knockdown sensitizes HeLa cells to TRAIL-induced cell death in vitro, and exerts an antitumor effect when combined with agonistic anti-hDR5 antibody administration in vivo. Therapeutic importin β1 knockdown, administered via the atelocollagen delivery system, as well as treatment with the importin β inhibitor, importazole, induced regression and/or eradication of two human TRAIL-resistant tumor cells when combined with agonistic anti-hDR5 antibody treatment. Thus, these findings suggest that the inhibition of importin β1 would be useful to improve the therapeutic effects of agonistic anti-hDR5 antibody against TRAIL-resistant cancers. Full Article
ca Decitabine Response in Breast Cancer Requires Efficient Drug Processing and Is Not Limited by Multidrug Resistance By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 Dysregulation of DNA methylation is an established feature of breast cancers. DNA demethylating therapies like decitabine are proposed for the treatment of triple-negative breast cancers (TNBC) and indicators of response need to be identified. For this purpose, we characterized the effects of decitabine in a panel of 10 breast cancer cell lines and observed a range of sensitivity to decitabine that was not subtype specific. Knockdown of potential key effectors demonstrated the requirement of deoxycytidine kinase (DCK) for decitabine response in breast cancer cells. In treatment-naïve breast tumors, DCK was higher in TNBCs, and DCK levels were sustained or increased post chemotherapy treatment. This suggests that limited DCK levels will not be a barrier to response in patients with TNBC treated with decitabine as a second-line treatment or in a clinical trial. Methylome analysis revealed that genome-wide, region-specific, tumor suppressor gene–specific methylation, and decitabine-induced demethylation did not predict response to decitabine. Gene set enrichment analysis of transcriptome data demonstrated that decitabine induced genes within apoptosis, cell cycle, stress, and immune pathways. Induced genes included those characterized by the viral mimicry response; however, knockdown of key effectors of the pathway did not affect decitabine sensitivity suggesting that breast cancer growth suppression by decitabine is independent of viral mimicry. Finally, taxol-resistant breast cancer cells expressing high levels of multidrug resistance transporter ABCB1 remained sensitive to decitabine, suggesting that the drug could be used as second-line treatment for chemoresistant patients. Full Article
ca Therapeutic and Prophylactic Antitumor Activity of an Oral Inhibitor of Fucosylation in Spontaneous Mammary Cancers By mct.aacrjournals.org Published On :: 2020-05-04T05:39:42-07:00 2-fluorofucose (2FF) inhibits protein and cellular fucosylation. Afucosylation of IgG antibodies enhances antibody-dependent cell-mediated cytotoxicity by modulating antibody affinity for FcRIIIa, which can impact secondary T-cell activation. Immune responses toward most common solid tumors are dominated by a humoral immune response rather than the presence of tumor-infiltrating cytotoxic T cells. IgG antibodies directed against numerous tumor-associated proteins are found in the sera of both patients with breast cancer and transgenic mice bearing mammary cancer. We questioned whether 2FF would have antitumor activity in two genetically distinct transgenic models; TgMMTV-neu (luminal B) and C3(1)-Tag (basal) mammary cancer. 2FF treatment significantly improved overall survival. The TgMMTV-neu doubled survival time compared with controls [P < 0.0001; HR, 7.04; 95% confidence interval (CI), 3.31–15.0], and survival was significantly improved in C3(1)-Tag (P = 0.0013; HR, 3.36; 95% CI, 1.58–7.14). 2FF treated mice, not controls, developed delayed-type hypersensitivity and T-cell responses specific for syngeneic tumor lysates (P < 0.0001). Serum IgG from 2FF-treated mice enhanced tumor lysis more efficiently than control sera (P = 0.004). Administration of 2FF for prophylaxis, at two different doses, significantly delayed tumor onset in both TgMMTV-neu; 20 mmol/L (P = 0.0004; HR, 3.55; 95% CI, 1.60–7.88) and 50 mmol/L (P = 0.0002; HR: 3.89; 95% CI, 1.71–8.86) and C3(1)-Tag; 20 mmol/L (P = 0.0020; HR, 2.51; 95% CI, 1.22–5.18), and 50 mmol/L (P = 0.0012; HR, 3.36; 95% CI, 1.57–7.18). Mammary cancer was prevented in 33% of TgMMTV-neu and 26% of C3(1)-Tag. 2FF has potent antitumor effects in mammary cancer models. The agent shows preclinical efficacy for both cancer treatment and prevention. Full Article
ca Erratum for 'The Chalk Group (Upper Cretaceous) of the Northern Province, eastern England - a review, Proceedings of the Yorkshire Geological Society, 62, 153-177 By pygs.lyellcollection.org Published On :: 2019-11-22T06:43:26-08:00 Full Article
ca Yorkshire Geological Society Registered Charity No. 220014 Society Proceedings 2018 By pygs.lyellcollection.org Published On :: 2019-11-22T06:43:26-08:00 Full Article
ca Age of the Acadian deformation and Devonian granites in northern England: a review By pygs.lyellcollection.org Published On :: 2019-11-22T06:43:26-08:00 Field evidence shows that emplacement of Devonian granites in northern England overlaps in space and time with the end of the supposed Acadian deformation in their country rocks. The age of this Acadian event in England and Wales is in need of review because of revised Rb-Sr and K-Ar decay constants and recently acquired radiometric ages on the granites. Published K-Ar and Ar-Ar cleavage ages recalculated to the new decay constants range from 404 to 394 Ma (Emsian, Early Devonian). Emplacement of the Skiddaw and Weardale granites at 398.8 ± 0.4 and 399.3 ± 0.7 Ma respectively is indicated by U-Pb zircon ages, and is compatible with the field evidence. However, emplacement of the Shap Granite at a Re-Os molybdenite age of 405.2 ± 1.8 Ma and at the youngest U-Pb zircon age of 403 ± 8 Ma matches the field evidence less well. The apparent paradox in these ages is resolved if the K-Ar ages record only the end of millions of years of cleavage formation. An earlier cluster of K-Ar and Ar-Ar cleavage ages at 426–420 Ma (Ludlow to Přídolí, late Silurian) dates a pre-Acadian resetting event soon after Iapetus closure, an event of uncertain significance. Ion microprobe U-Pb zircon ages for the Shap Granite have a mean of 415.6 ± 1.4 Ma but a range of 428–403 Ma, compatible with a long magmatic history. Thermal considerations suggest that this history was not at the upper crustal emplacement site but in a mid-crustal mush zone, now preserved at about 10 km depth as a component of the Lake District and North Pennine batholiths. Full Article
ca Peer Education: Reviews of the Literature (PERLs) By www.jdentaled.org Published On :: 2019-12-01T06:00:19-08:00 Full Article
ca 3D Printed Teeth with Enamel and Dentin Layer for Educating Dental Students in Crown Preparation By www.jdentaled.org Published On :: 2019-12-01T06:00:19-08:00 Commonly used model teeth are so far uniform in color and hardness. There is no discrimination between enamel and dentin part of a tooth. This condition makes it difficult to train a preparation technique, which is adapted to real tooth substance. The aim of this study was to design and establish a 3D printed tooth with different layers for enamel and dentin for education in crown preparation. A printable tooth with different layers for enamel and dentin was designed, and all 38 fourth-year dental students in the first clinical course in prosthodontics and 30 experienced dentists were trained during a voluntary hands-on course in 2019. Prior to the study, the students had used standard model teeth and real-teeth models in their preclinical education. They had experience in caries removal and preparation on real patients. The perceived benefits of the 3D printed tooth were evaluated by a questionnaire. All individuals in both groups completed the questionnaire, for a 100% response rate. The results showed that the printed tooth was given an overall mean grade of 2.3 (students) and 2.0 (experts) on a scale from 1=excellent to 5=poor. The difference in hardness between the dentin and enamel layer was given a mean of 2.4 (students and experts) and the difference in color a 1.7 (students) and 1.8 (experts). The tooth model with the prepared tooth illustrating an ideal preparation was graded 1.6 (students and experts). In this study, the students had the opportunity to learn a correct crown preparation on a printed tooth with different material properties for enamel and dentin. The learning effect with this tooth model was rated as good on the questionnaire by both students and expert dentists. Full Article
ca Redefining Medical Competencies for an Oral Medicine Specialty Training Curriculum Using a Modified Delphi Technique By www.jdentaled.org Published On :: 2019-12-01T06:00:19-08:00 This article describes the development of medical competencies for oral medicine specialty training in the UK and Ireland by a collaborative working group using a modified Delphi technique. The current specialty training curriculum for oral medicine (OM) in the UK was developed by a working group including members of the British Society for Oral Medicine (BSOM) and members of the Specialty Advisory Committee for Additional Dental Specialties (SACADS) and adopted by the UK General Dental Council (GDC) in 2010. When the curriculum was developed, the entry requirements for specialty training in OM included undergraduate degrees in both dentistry and medicine. At the time of adoption, the requirement for a medical degree was removed. Medical competencies were assumed to have been delivered in medical undergraduate and postgraduate training. Accordingly, there was a need to define the medical competencies for OM specialty training to benefit trainees, trainers, and assessors. In 2018, a group comprising specialty trainers, recent former specialty trainees, and current specialty trainees in OM held face-to-face meetings in addition to email discussions and developed an updated curriculum document to better reflect the medical competencies required in specialty training. A collaborative modified Delphi approach was used to evaluate medical foundation competencies and to include only those that were considered relevant to OM specialty training. A list of relevant and achievable medical competencies was determined that has been approved by SACADS and will be incorporated into a revised OM curriculum from the UK GDC. The newly agreed-upon document for medical competencies in OM specialty training will serve as a reference for trainees, trainers, and assessors and reflects a successful use of a modified Delphi approach. Full Article
ca Residents Perspectives on and Application of Dental Public Health Competencies Using Case-Based Methods By www.jdentaled.org Published On :: 2019-12-01T06:00:19-08:00 The aims of this study were to qualitatively assess dental public health (DPH) residents’ perspectives on teaching methods for DPH competencies and to develop and implement a case-based simulation to address those competencies, constructed on the basis of the qualitative assessment. Focus group discussions were conducted with 18 DPH residents enrolled in two university-based DPH programs. Topic areas discussed in the two focus groups were perceived value of DPH competencies, ways to acquire new DPH skills/abilities, and additional skills/abilities needed by DPH residents. The focus groups’ responses showed that the residents felt competent in the analytical thinking competencies such as research methodology and critiquing literature. They emphasized the importance of learning leadership skills and reported feeling somewhat uncertain about their mastery of the policy and advocacy and system evaluation competencies. Of the two distinct categories of DPH skills and competencies— analytical/critical thinking and practical competencies—these residents reported that a greater proportion of time needed to be devoted to integrating the practical competencies into their education. Based on the residents’ feedback, the authors developed a structured seminar series taking a case-based approach to simulate real-world DPH problems, using real and semi-hypothetical planning projects to meet the residents’ perceived needs and covering gaps between didactic learning and practice. Full Article
ca Examining the Case for Dental Hygienists Teaching Predoctoral Dental Students: A Two-Part Study By www.jdentaled.org Published On :: 2019-12-01T06:00:18-08:00 Dental students in North American dental schools are exposed to faculty members with various professional backgrounds. These faculty members may include dentists, dental hygienists, and scientists without clinical dental credentials. The practice of dental hygienists’ educating predoctoral dental students has not been well documented. The aims of this two-part study were to investigate the parameters of didactic, preclinical, and clinical instruction of dental students by dental hygienist faculty members in North American dental schools and to explore dental students’ perceptions of this form of teaching. In part one, a survey was sent electronically to the clinical or academic affairs deans of all 76 American Dental Education Association (ADEA) member dental schools in 2017. Twenty-nine responded, for a 38.2% response rate. In 76% of the responding schools, dental hygienists were teaching dental students. Most respondents reported that, in their schools, the minimum degree required to teach didactically was a master’s, while a bachelor’s degree was required for preclinical and clinical courses. There was no significant association between dental hygienists’ instructing dental students and having a dental hygiene educational program at the institution. In part two of the study, a questionnaire was completed by 102 graduating dental students (85% response rate) at one U.S. university to evaluate the impact of dental hygienist educators. Among the respondents, 87% reported feeling that dental hygienists were very effective educators. There were no significant differences in responses between traditional and advanced standing international dental students. This study found that dental hygienists were educating dental students in many North American dental schools and were doing so in curricular content beyond periodontics and that their educational contributions at a sample school were valued by the dental students there. Full Article
ca Perceptions of Dental Hygienists About Thesis Completion in Graduate Education By www.jdentaled.org Published On :: 2019-12-01T06:00:18-08:00 Few studies have been published on thesis completion experiences of master’s degree students. However, for doctoral students, dissertation completion has been found to be dependent on individual, relational, and institutional factors. The aim of this study was to examine dental hygienists’ perceptions of their experiences completing a thesis as a requirement for an advanced degree. A qualitative phenomenological research design was used utilizing virtual focus groups with a national purposive sample of dental hygienists (n=25) who had graduated from a degree program in which a thesis was a requirement for the degree. Data analysis used an inductive approach to identify themes using Liechty et al.’s framework of individual, relational, and institutional factors impacting completion of a dissertation. Liechty et al.’s framework is based on Vygotsky’s sociocultural theory of learning. In the results, individual factors identified included family/work responsibilities, lack of understanding of the thesis process, time management, health issues, and reaching personal and professional goals. Relational factors focused primarily on positive and negative experiences with the thesis advisor/committee and support from expert peers/family. Institutional factors included the thesis structure, financial concerns, and challenges in recruiting research participants. This study found many factors influencing the thesis experience that may help guide the process in graduate degree programs. In addition, the findings suggest a need to provide mentoring and support for thesis advisors and committee members to more effectively guide students through the thesis process. Effective modifications of these may improve retention of students and facilitate timely completion of thesis research. Full Article
ca Development of a Dental School Strategic Plan to Inform Interprofessional Education By www.jdentaled.org Published On :: 2019-12-01T06:00:18-08:00 Changes in U.S. health care delivery systems and Commission on Dental Accreditation standards provide impetus for interprofessional education (IPE) and collaborative practice, but roadmaps for engaging dental and dental hygiene faculty to incorporate IPE in a systematic manner are limited. The purpose of this report is to describe the process for creating a strategy and gathering a variety of baseline data to use for determining objectives and metrics and the subsequent development of an IPE strategic plan at the University of North Carolina (UNC) at Chapel Hill Adams School of Dentistry (SOD). SOD IPE committee members included representation from the UNC Schools of Dentistry, Medicine, Pharmacy, and Business. A three-phase framework was developed. Phase 1 (IPE assessment) was an internal environmental scan including a 2017 faculty survey, departmental mapping of IPE activities, comparison of UNC with national results on the IPE component of the American Dental Education Association (ADEA) survey of dental school seniors (2016 graduating class), identification of faculty joint/adjunct appointments at other UNC schools, and a strengths, weaknesses, opportunities, threats (SWOT) analysis. Phase 2 (visioning) consisted of development of IPE mission, vision, and priorities. In Phase 3 (implementation), priorities were developed. Data-gathering led to a strategic plan with three objectives: 1) increase faculty engagement and recognition, 2) develop predoctoral dentistry and dental hygiene IPE curricula, and 3) develop an infrastructure that supports IPE. Specific initiatives and activities, supporting metrics, and estimated costs were developed for each objective. The framework guided a systematic, transparent, and organized process for collecting and monitoring the evidence and directing activities. A three-year strategic plan for IPE was developed in 2017, and implementation is ongoing. Full Article
ca Learning and Teaching Together to Advance Evidence-Based Clinical Education: A Faculty Learning Community By www.jdentaled.org Published On :: 2019-12-01T06:00:18-08:00 Clinical teaching is a cornerstone of health sciences education; it is also the most challenging aspect. The University of Pittsburgh Schools of Dental Medicine, Nursing, and Pharmacy developed a new evidence-based interprofessional course framed as a faculty learning community (FLC) around the principles of learning in a clinical environment. The aim of this study was to assess the overall effectiveness of this two-semester FLC at four health professions schools in academic year 2014-15. The assessment included anonymous participant surveys in each session and an anonymous end-of-course survey. Thirty-five faculty members from dental, health and rehabilitation sciences, nursing, and pharmacy enrolled in the FLC, with six to 32 enrollees attending each session. All attendees at each session completed the session evaluation surveys, but the attendance rate at each session ranged from 17.1% to 91.4%. Sixteen participants (46%) completed the end-of-course survey. The results showed overall positive responses to the FLC and changes in the participants’ self-reported knowledge. Session surveys showed that the participants found the FLC topics helpful and appreciated the opportunity to learn from each other and the interprofessional nature of the FLC. Responses to the end-of-course survey were in alignment with the individual session surveys and cited specific benefits as being the content, teaching materials, and structured discussions. In additional feedback, participants reported interest to continue as a cohort and to extend the peer-support system beyond the FLC. This outcomes assessment of the first round of the FLC confirmed that this cohort-based faculty development in an interprofessional setting was well received by its participants. Their feedback provided valuable insights for changes to future offerings. Full Article
ca Top-Cited Articles from Dental Education Journals, 2009 to 2018: A Bibliometric Analysis By www.jdentaled.org Published On :: 2019-12-01T06:00:18-08:00 The number of citations an article receives is an important indicator to quantify its influence in its field. The aim of this study was to identify and analyze the characteristics of the 50 top-cited articles addressing dental education published in two journals dedicated to dental education (European Journal of Dental Education and Journal of Dental Education). The Web of Science database was searched to retrieve the 50 most-cited articles from the two journals in December 2018. The top-cited articles were analyzed for journal of publication, number of citations, institution and country of origin, year of publication, study type, keywords, theme and subtheme, and international collaborations. The results showed the 50 top-cited articles were cited between 24 and 146 times each. The majority of these top-cited articles (n=34) were published in the Journal of Dental Education. Half (n=25) of the articles were by authors in the U.S. The most common study types were surveys (n=26) and reviews (n=10). The main themes of these top-cited articles were curriculum and learner characteristics. This bibliometric analysis can serve as a reference for recognizing studies with the most impact in the scholarship of dental education. Full Article
ca Entrustable Professional Activities in Oral Health for Primary Care Providers Based on a Scoping Review By www.jdentaled.org Published On :: 2019-12-01T06:00:18-08:00 Despite advances in oral health care, inequalities in oral health outcomes persist due to problems in access. With proper training, primary care providers can mitigate this inequality by providing oral health education, screening, and referral to advanced dental treatment. Diverging sets of oral health competencies and guidelines have been released or endorsed by multiple primary care disciplines. The aim of this study was to transform multiple sets of competencies into Entrustable Professional Activities (EPAs) for oral health integration into primary care training. A scoping review of the literature between January 2000 and December 2016 was conducted according to PRISMA methodology to identify all existing sets of competencies. The following primary care disciplines were included in the search: allopathic/osteopathic medical schools and residency programs in family medicine, internal medicine, and pediatrics; physician assistant programs; and nurse practitioner programs. Competencies were compared using the Health Resources and Services Administration Integration of Oral Health and Primary Care Practice competencies as the foundational set and translated into EPAs. The resulting EPAs were tested with a reactor panel. The scoping review produced 1,466 references, of which 114 were selected for full text review. Fourteen competencies were identified as being central to the integration of oral health into primary care. These were converted to seven EPAs for oral health integration into primary care and were mapped onto Accreditation Council for Graduate Medical Education residency competency domains as well to the Association of American Medical Colleges EPAs for graduating medical students. The resulting EPAs delineate the essential, observable work required of primary care providers to ensure that oral health is treated as a critical determinant of overall health. Full Article