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Although facultative endosymbionts are now known to protect insect hosts against pathogens and parasitoids, the effects of endosymbionts on insecticide resistance are still unclear. Here we show that Wolbachia are associated with increased resistance to the commonly used insecticide, buprofezin, in the small brown planthopper (Laodelphax striatellus) in some genetic backgrounds while having no effect in other backgrounds. In three Wolbachia-infected lines from experimental buprofezin-resistant strains and one line from a buprofezin-susceptible line established from Chuxiong, Yunnan province, China, susceptibility to buprofezin increased after removal of Wolbachia. An increase in susceptibility was also evident in a Wolbachia-infected line established from a field population in Rugao, Jiangsu province. However, no increase was evident in two field populations from Nanjing and Fengxian, Jiangsu province, China. When Wolbachia was introgressed into different genetic backgrounds, followed by Wolbachia removal, the data pointed to Wolbachia effects that depend on the nuclear background as well as on the Wolbachia strain. However, there was no relationship between Wolbachia density and the component of buprofezin resistance associated with the symbiont. The results suggest that Wolbachia effects associated with chemical resistance are complex and unpredictable, but also that they can be substantial. © 2020 Society for Applied Microbiology and John Wiley & Sons Ltd.BACKGROUND Lymph node metastasis is an important prognostic factor for distal bile duct cancer. The number of lymph node metastases was adopted for nodal classification. However, different cutoff values have been proposed, ranging from two to five. METHODS A total of 1,748 cases who underwent curative surgery with pancreatoduodenectomy for distal bile duct cancer registered in the nationwide biliary tract cancer registry in Japan from 2008 to 2013 were included. Univariate Cox regression was performed to assess the effect of prognostic lymph node metastasis counts on mortality and to determine cutoff values. RESULTS The overall survival rate after resection was 47.4% at five years. Univariate and multivariate analysis found prognostic factors to include lymph node metastasis. The cutoff point was set to two lymph node metastases using the Cox model. There were significant differences in pairwise comparisons between three groups by the number of metastatic lymph node (P less then 0.001 for 0 vs. 1-2 and P = 0.003 for 1-2 vs. ≥ 3). CONCLUSION Our data suggest lymph node classification as N0 (patients without lymph node metastases), N1 (metastasis in 1-2 regional lymph nodes), and N2 (metastases in ≥ 3 regional lymph nodes). This article is protected by copyright. All rights reserved.A gendered pay gap in the genetic counseling profession has been identified in recent years, though reasons for its existence have not been explored in depth. The primary aim of this study was to determine what demographic characteristics and career experiences influence annual salary rates and which of those factors differ between male and female genetic counselors. The secondary aim of this study was to determine whether genetic counselors perceive a pay gap and to identify attitudes toward their salaries. Surveys were sent to the nearly 4,000 genetic counselors who are members of the National Society of Genetic Counselors (NSGC), and we report results from 355 respondents. A significant interaction was found between gender and position (direct vs. non-direct patient care). In the best-fitting multiple regression model, male genetic counselors earned $23,736 more than females in non-direct patient care roles (p less then .001) and $1,552 more than females in direct patient care roles (p less then .001). Years of experience, leadership experience score, negotiation attempts, licensure, and certification were all found to be predictors of annual salary. Most female genetic counselors perceived there to be a pay gap and most male genetic counselors did not (p = .01). Results from this study could contribute to changes in employment and compensation practices, as well as impact genetic counselors' strategies in role- and salary-based conversations. © 2020 National Society of Genetic Counselors.Oral positioning radiotherapy stents are devices that protect healthy structures adjacent to the target volume of head and neck radiotherapy treatment, leading to reduced acute and chronic side effects. It is described here a digital workflow to produce an oral positioning radiotherapy stent and analyze its efficacy by measuring dosimetric variations with and without this stent. An oral positioning radiotherapy stent was created according to a digital workflow that included intraoral scanning, digital design, and 3D printing for a patient with squamous cell carcinoma of the tongue. The patient underwent computed tomography to evaluate radiotherapy treatment by intensity-modulated radiation therapy with and without the use of the 3D-printed oral stent. The use of a 3D-printed oral positioning radiotherapy stent is a feasible and reproducible technique that reduces the planning target volume and reduces radiation doses delivered to the hard palate, right parotid gland, and left parotid gland by 42%, 21%, and 8.5%, respectively. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.Gastric cancer (GC) is one of the prevalent human malignancies and the third most common cause of cancer-related death worldwide. The doxorubicin hydrochloride is one of the important chemotherapeutic anticancer agents, with a limited therapeutic efficacy for treatment of GC. Therefore, taking advantage of synergistic effects by strategies like combination therapy seems appropriate and promising in treatment of GC. The aim of this study was to investigate a novel method to enhance the therapeutic efficacy of doxorubicin (as a chemotherapeutic agent) by co-administration of curcumin (as a bioactive herbal compound) in GC treatment. In the present study, the effects of curcumin, doxorubicin, and their combinations (Dox-Cur) were evaluated on the viability, morphological features, tumor spheroid formation, migration, invasion, and apoptosis of gastric adenocarcinoma cell line (AGS). https://www.selleckchem.com/products/liraglutide.html Moreover, expression levels of BAX, BCL-2, and CASP9 genes were assessed among AGS cells treated with curcumin, doxorubicin, and Dox-Cur.
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