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  • Kirkpatrick Sehested posted an update 3 months, 3 weeks ago

    po (80%) or CCRT (92%; RT-hypo vs CCRT P = .270; RT-acc vs CCRT P = .004). CCRT had numerically higher LRC in comparison with RT-hypo or RT-acc in stage IV (73%, 65%, and 66%; P = .336). Conclusions It is proposed that RT-hypo be considered in place of CCRT for HPV+ T1-T3N0-N2c (TNM-7) HNSCCs, HPV- T1-T2N0 HNSCCs, and select stage III HNSCCs during the COVID-19 outbreak.Aims Beer is a harsh medium for bacteria to survive, however, lactic acid bacteria including Lactobacillus brevis have evolved the ability to grow in beer. Here, the influence of environmental factors such as low pH, ethanol or hop content was assessed. Methods and results A transcriptomic analysis of two Lact. brevis beer-spoiling strains was performed comparing growth in nutritive media with or without the imposition of a stressor related to the beer environment. This allowed the identification of a manganese transporter encoding gene that contributes to low pH tolerance. Conclusions We report on the importance of a manganese transporter associated with pH tolerance and beer spoilage in Lact. brevis. The importance of manganese for Lact. brevis growth in a low pH environment was highlighted. Significance and impact of the study Bacterial spoilage of beer may result in product withdrawal with concomitant economic losses for the brewing industry. A limited number of genes involved in beer spoilage have been identified but none of them are universal. It is clear that other molecular players are involved in beer spoilage. The study highlights the complexity of the genetic requirements to facilitate beer spoilage and the role of multiple key players in this process.Background Massive transfusion is frequently a component of the resuscitation of combat casualties. Because blood supplies may be limited, activation of a walking blood bank and mobilization of necessary resources must occur in a timely fashion. The development of a risk prediction model to guide clinicians for early transfusion in the prehospital setting was sought. Study design and methods This is a secondary analysis of a previously described data set from the Department of Defense Trauma Registry from January 2007 to August 2016 focusing on casualties undergoing massive transfusion. Serious injury was defined based on an Abbreviated Injury Scale score of 3 or greater by body region. The authors constructed multiple imputations of the model for risk prediction development. Efforts were made to internally validate the model. Results Within the data set, there were 15540 patients, of which 1238 (7.9%) underwent massive transfusion. In the body region injury scale model, explosive injuries (odds ratio [OR], 3.78), serious extremity injuries (OR, 6.59), and tachycardia >120/min (OR, 5.61) were most strongly associated with receiving a massive transfusion. In the simplified model, major amputations (OR, 17.02), tourniquet application (OR, 6.66), and tachycardia >120 beats/min (OR, 8.72) were associated with massive transfusion. Both models had area under the curve receiver operating characteristic values of greater than 0.9 for the model and bootstrap forest analysis. Conclusion In the body region injury scale model, explosive mechanisms, serious extremity injuries, and tachycardia were most strongly associated with massive transfusion. In the simplified model, major amputations, tourniquet application, and tachycardia were most strongly associated.External anogenital warts are considered the commonest viral sexually transmitted infection that has serious negative psychological effects on both males and females such as anxiety and marked stress. Aim of this work is to measure serum glutathione peroxidase (GSH-Px), catalase and superoxide dismutase enzyme level in patients with external anogenital warts before and after intralesional tuberculin purified protein derivative (PPD) injection. This study carried out 59 patients with anogenital warts recruited from the dermatology clinic and the andrology clinic, Suez Canal University hospital. Each patient was injected with 10 units (0.2 ml) of PPD intralesionally in the mother or largest wart with 2 weeks interval till complete resolution or maximum of six injections. Serum GSH-Px, catalase and superoxide dismutase were measured using ELISA before and after injection. Results of PPD injection showed that 69.5% of patients were responders while 30.5% were nonresponders. The mean level of serum GSH-Px, catalase and superoxide dismutase dropped significantly after injection with levels pre- and post-injection, 91.1 ng/ml versus 52.6 ng/ml, 88.5 ng/ml versus 67.4 ng/ml and 28.6 ng/ml versus 21.8 ng/ml respectively. Antioxidant enzyme levels decrease significantly after PPD injection. Serum GSH-Px and catalase were significantly related to PPD response.Transmembrane domain (TMD) mutations of ERBB2 have previously been reported in lung cancer patients in addition to well-studied kinase domain (KD) mutations, which may stabilize ERBB2 heterodimerization with other EGFR family members and favor a kinase active conformation. However, the frequency and clinical significance of ERBB2 TMD mutations in Chinese population is unknown. We prospectively analyzed the next-generation sequencing data of 34,368 Chinese lung cancer patients with different sample types, including tumor tissue, plasma, cerebrospinal fluid and pleural effusion. Patients’ clinical characteristics and treatment history were retrieved from the database for further evaluation. Our findings show that ERBB2 V659/G660 mutations were detected at a frequency of 0.13% (45/34,368), of which the most frequent was V659D/E (88.9%), with a trend in non-smokers and male. Moreover, 18% of patients (8/45) showed EGFR and/or ERBB2 amplification, whereas nine patients presented EGFR L858R or exon19 deletion. NCT-503 mouse Interestingly, novel ERBB3 TMD mutation I646R was found co-existing in three patients with ERBB2 V659D and one patient with ERBB2 G66D, which might influence its heterodimerization with ERBB2 and further activate ERBB2. Four ERBB2 TMD mutation-positive patients received afatinib monotherapy or combination therapy, but showed variable responses. One patient with V659E responded well to ERBB2 inhibitor lapatinib plus capecitabine as well as subsequent afatinib treatment upon progression. Our study provides valuable insights into the distribution of ERBB2 TMD mutations by employing the largest Asian lung cancer cohort thus far. Patients with ERBB2 TMD mutations who received afatinib, a pan-ERBB inhibitor, demonstrated mixed responses, posing the urgent need to develop more effective therapeutic strategy for patients who carry ERBB2 TMD mutations.

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