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https://www.readbyqxmd.com/read/28425050/oxidative-protein-modification-alters-proteostasis-under-acute-hypobaric-hypoxia-in-skeletal-muscles-a-comprehensive-in-vivo-study
#1
Akanksha Agrawal, Richa Rathor, Geetha Suryakumar
While numerous maladies are associated with hypobaric hypoxia, muscle protein loss is an important under studied topic. Hence, the present study was designed to investigate the mechanism of muscle protein loss at HH. SD rats were divided into normoxic rats, while remaining rats were exposed to simulated hypoxia equivalent to 282-torr pressure (equal to an altitude of 7620 m, 8% oxygen), at 25 °C for 6, 12, and 24 h. Post-exposure rats were sacrificed and analysis was performed. Ergo, muscle loss-related changes were observed at 12 and 24 h post-HH exposure...
April 19, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28424783/peptide-fraction-poh2-exerts-antiadipogenic-activity-through-inhibition-of-c-ebp-%C3%AE-and-ppar-%C3%AE-expression-in-3t3-l1-adipocytes
#2
Thi Tuyet Nhung Nguyen, Thi Thu Ha, Thi Hoa Nguyen, Thi Hien Vu, Nam Hai Truong, Hoang Ha Chu, Dong Van Quyen
Many studies have comprehensively examined the venom of Ophiophagus hannah snake. Its venom comprises different compounds exhibiting a wide range of pharmacological activities. In this investigation, four peptide fractions (PFs), ranging from 3 kDa to 10 kDa, isolated from the Vietnamese snake venom of O. hannah were separated by HPLC and investigated for their inhibitory activity on adipogenesis in 3T3-L1 adipocytes. The most effective PF was then further purified, generating two peptides, pOh1 and pOh2...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28420265/ichampss-usability-and-psychosocial-impact-for-increasing-implementation-of-sexual-health-education
#3
Belinda F Hernandez, Melissa F Peskin, Ross Shegog, Efrat K Gabay, Paula M Cuccaro, Robert C Addy, Eric Ratliff, Susan T Emery, Christine M Markham
INTRODUCTION: Diffusion of sexual health evidence-based programs (EBPs) in schools is a complex and challenging process. iCHAMPSS ( CHoosing And Maintaining effective Programs for Sex education in Schools) is an innovative theory- and Web-based decision support system that may help facilitate this process. The purpose of this study was to pilot-test iCHAMPSS for usability and short-term psychosocial impact. METHOD: School district stakeholders from across Texas were recruited ( N = 16) and given access to iCHAMPSS for 3 weeks in fall 2014...
May 2017: Health Promotion Practice
https://www.readbyqxmd.com/read/28420170/fisetin-protects-pc12-cells-from-tunicamycin-mediated-cell-death-via-reactive-oxygen-species-scavenging-and-modulation-of-nrf2-driven-gene-expression-sirt1-and-mapk-signaling-in-pc12-cells
#4
Jui-Hung Yen, Pei-Shan Wu, Shu-Fen Chen, Ming-Jiuan Wu
BACKGROUND: Fisetin (3,7,3',4'-tetrahydroxyflavone) is a dietary flavonol and exhibits antioxidant, anti-inflammatory, and neuroprotective activities. However, high concentration of fisetin is reported to produce reactive oxygen species (ROS), induce endoplasmic reticulum (ER) stress and cause cytotoxicity in cancer cells. The aim of this study is to investigate the cytoprotective effects of low concentration of fisetin against tunicamycin (Tm)-mediated cytotoxicity in neuronal-like catecholaminergic PC12 cells...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28418921/c-ebp-%C3%AE-positively-regulates-mdsc-expansion-and-endothelial-vegfr2-expression-in-tumor-development
#5
Yongfen Min, Jingdong Li, Peng Qu, P Charles Lin
Vascular endothelial cells and Gr-1+CD11b+ myeloid derived suppressor cells (MDSCs) are two important components that constitute the tumor microenvironment. Targeting these cells offers the potential to halt tumor growth. In this study, we report a common mediator in C/EBP-δ that regulates both components and aids in tumor development. C/EBP-δ is elevated in tumor derived MDSCs. Interestingly, genetic deletion of C/EBP-δ in mice significantly impaired MDSC expansion in response to tumor progression, but it had no effect on Gr-1+CD11b+ cell production in normal development...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417031/knowledge-practice-and-self-efficacy-in-evidence-based-practice-among-midwives-in-east-iran
#6
Elham Azmoude, Fereshteh Farkhondeh, Maryam Ahour, Maryam Kabirian
OBJECTIVES: The successful implementation of evidence-based practice (EBP) can lead to appropriate and effective midwifery care during pregnancy, childbirth and in the postnatal period. However, levels of knowledge and confidence in one's ability to apply EBP are related to its effective implementation. This study aimed to investigate levels of knowledge, practice of and self-efficacy towards the use of EBP among midwives in East Iran. METHODS: This cross-sectional study took place between January and February 2016 and involved 98 midwives employed at two hospitals and all four urban health care centres in Torbat-e Heydariyeh, Iran...
February 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28416992/sphenopalatine-ganglion-block-for-relieving-postdural-puncture-headache-technique-and-mechanism-of-action-of-block-with-a-narrative-review-of-efficacy
#7
REVIEW
Abhijit S Nair, Basanth Kumar Rayani
The sphenopalatine ganglion (SPG) is a parasympathetic ganglion, located in the pterygopalatine fossa. The SPG block has been used for a long time for treating headaches of varying etiologies. For anesthesiologists, treating postdural puncture headaches (PDPH) has always been challenging. The epidural block patch (EBP) was the only option until researchers explored the role of the SPG block as a relatively simple and effective way to treat PDPH. Also, since the existing evidence proving the efficacy of the SPG block in PDPH is scarce, the block cannot be offered to all patients...
April 2017: Korean Journal of Pain
https://www.readbyqxmd.com/read/28415750/xanthohumol-induces-paraptosis-of-leukemia-cells-through-p38-mitogen-activated-protein-kinase-signaling-pathway
#8
Xiangquan Mi, Chunming Wang, Chao Sun, Xu Chen, Xiang Huo, Yiming Zhang, Gang Li, Bo Xu, Jun Zhang, Jianxin Xie, Zhenhua Wang, Ji Li
Xanthohumol as a natural polyphenol demonstrates an anticancer activity, but its underlying mechanism remains unclear. In this study, we showed that xanthohumol (XN) induces paraptosis of leukemia cells. The paraptosis is one cell death which is characterized by dilation of the endoplasmic reticulum and/or mitochondria. The results demonstrated that XN treatment significantly inhibited cell proliferation and triggered extensive cytoplasmic vacuolation of HL-60 leukemia cells, but it did not cause the cleavage of caspase-3 protein or apoptosis...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413486/cigarette-smoke-extract-promotes-proliferation-of-airway-smooth-muscle-cells-through-suppressing-c-ebp-%C3%AE-expression
#9
Pin Guan, Wentao Cai, Huapeng Yu, Zhiyong Wu, Wei Li, Jie Wu, Juan Chen, Guangqiu Feng
Cigarette smoke has been considered a major contributor to the pathogenesis of chronic obstructive pulmonary disease (COPD). In COPD patients, the airway smooth muscle layer has been observed to be markedly thickened and the proliferation of airway smooth muscle cells (ASMCs) was therefore used by the present study as a model to assess the impact of cigarette smoke extract (CSE). ASMCs were exposed to various concentrations of CSE and the proliferation of the cells was analyzed by an MTT assay. Furthermore, the expression levels of calreticulin and CCAAT/enhancer-binding protein alpha (C/EBP-α) in CSE-stimulated ASMCs were determined by polymerase chain reaction and western blot analyses...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28410748/a-proportional-integral-estimator-based-clock-synchronization-protocol-for-wireless-sensor-networks
#10
Wenlun Yang, Minyue Fu
Clock synchronization is an issue of vital importance in applications of WSNs. This paper proposes a proportional integral estimator-based protocol (EBP) to achieve clock synchronization for wireless sensor networks. As each local clock skew gradually drifts, synchronization accuracy will decline over time. Compared with existing consensus-based approaches, the proposed synchronization protocol improves synchronization accuracy under time-varying clock skews. Moreover, by restricting synchronization error of clock skew into a relative small quantity, it could reduce periodic re-synchronization frequencies...
April 12, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28406482/cisplatin-enriching-cancer-stem-cells-confer-multidrug-resistance-in-non-small-cell-lung-cancer-via-enhancing-trib1-hdac-activity
#11
Lihui Wang, Xing Liu, Yong Ren, Jingyuan Zhang, Junli Chen, Wenlong Zhou, Wei Guo, Xiaoxuan Wang, Huiping Chen, Meng Li, Xiangzhong Yuan, Xun Zhang, Jingyu Yang, Chunfu Wu
Chemotherapeutic agents are generally used as a frontline therapy for non-small cell lung cancer (NSCLC). However, resistance to chemotherapy arises rapidly in NSCLC, and the reasons for chemotherapy resistance have not been fully determined. Here, we found cisplatin, but not paclitaxel and doxorubicin, induced the enrichment of cancer stem cell (CSC) and conferred multidrug resistance in NSCLC cell lines. In vivo study confirmed drug-resistant tumors displayed the enhanced expressions of CSC transcription factors...
April 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28405178/utilizing-bd-max%C3%A2-enteric-bacterial-panel-to-detect-stool-pathogens-from-rectal-swabs
#12
Barbara DeBurger, Sarah Hanna, Eleanor A Powell, Cindi Ventrola, Joel E Mortensen
BACKGROUND: The BD MAX™ Enteric Bacterial Panel (BDM-EBP) is designed and FDA-cleared to detect Salmonella, Shigella, Campylobacter, and Shiga toxin genes stx1/2 from stool samples. However, rectal swabs, which are not FDA-cleared for clinical testing with the BDM-EBP, are common specimens received from pediatric patients for enteric pathogen testing. The purpose of this study was to evaluate the ability of the BDM-EBP to detect stool pathogens from rectal swabs. METHODS: Routine cultures, Shiga toxin testing, and molecular testing with BDM-EBP were performed on 272 sequential rectal swabs collected from August 2015 to December 2015...
2017: BMC Clinical Pathology
https://www.readbyqxmd.com/read/28400209/astaxanthin-attenuates-glutamate-induced-apoptosis-via-inhibition-of-calcium-influx-and-endoplasmic-reticulum-stress
#13
Xiaotong Lin, Yan Zhao, Shanhe Li
Astaxanthin (AST) is a carotenoid that has been shown to have neuroprotective effects. In this study, it was found that AST significantly inhibited glutamate-induced loss of cell viability and apoptosis. AST pretreatment attenuated glutamate-induced activation of caspase-3, reduction of anti-apoptotic protein Bcl-2, and increase of pro-apoptotic protein Bak. In addition, AST pretreatment suppressed the production of intracellular reactive oxygen species. AST treatment also prevented glutamate-induced increase of the level of activated p38 mitogen-activated protein kinase (MAPK), which has been shown to promote apoptotic events...
April 8, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28399014/physiotherapists-behaviour-attitudes-awareness-knowledge-and-barriers-in-relation-to-evidence-based-practice-implementation-in-saudi-arabia-a-cross-sectional-study
#14
Mansour A Alshehri, Ahmed Alalawi, Hammad Alhasan, Emma Stokes
AIM: The implementation of evidence-based practice (EBP) is extremely important and plays a vital role in healthcare practice. There have been few studies concerning the level of healthcare provided to patients in Saudi Arabia, using EBP as an indicator. This study is aimed at investigating physiotherapists' behaviour, attitudes, awareness and knowledge about EBP, along with barriers that curb the implementation of EBP. METHODS: A sample of convenience was used and an online survey consisting of 14 closed-ended questions was given to both clinical and academic physiotherapists in Saudi Arabia from May to October 2016...
April 10, 2017: International Journal of Evidence-based Healthcare
https://www.readbyqxmd.com/read/28394299/c-jun-contributes-to-transcriptional-control-of-gna12-expression-in-prostate-cancer-cells
#15
Udhaya Kumari Udayappan, Patrick J Casey
Abstract: GNA12 is the α subunit of a heterotrimeric G protein that possesses oncogenic potential. Activated GNA12 also promotes prostate and breast cancer cell invasion in vitro and in vivo, and its expression is up-regulated in many tumors, particularly metastatic tissues. In this study, we explored the control of expression of GNA12 in prostate cancer cells. Initial studies on LnCAP (low metastatic potential, containing low levels of GNA12) and PC3 (high metastatic potential, containing high GNA12 levels) cells revealed that GNA12 mRNA levels correlated with protein levels, suggesting control at the transcriptional level...
April 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28392644/transcription-factors-regulating-inflammatory-cytokine-production-are-differentially-expressed-in-peripheral-blood-mononuclear-cells-of-beh%C3%A3-et-disease-depending-on-disease-activity
#16
Min-Yeong Woo, Su Jin Yun, Mi Jin Lee, Kyongmin Kim, Eun-So Lee, Sun Park
BACKGROUND: Behçet disease (BD) is a relapsing inflammatory disease with increased production of inflammatory cytokines in peripheral blood mononuclear cells (PBMCs); however, the underlying molecular mechanisms are not well known. OBJECTIVE: To analyze whether the differential expression of transcription factors is involved in the increased tumor necrosis factor (TNF)-α and interleukin (IL)-6 production by PBMCs of BD patients compared to healthy controls (HCs)...
April 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28391375/perk-signalling-pathway-mediates-single-prolonged-stress-induced-dysfunction-of-medial-prefrontal-cortex-neurons
#17
Lili Wen, Bing Xiao, Yuxiu Shi, Fang Han
Post-traumatic stress disorder (PTSD) is characterized with abnormal learning and memory. Impairments in learning and memory are closely associated with apoptosis in the medial prefrontal cortex (mPFC). We previously examined the endoplasmic reticulum (ER) stress was involved in the apoptosis in the mPFC of PTSD. The PERK pathway plays the important role in the ER stress-induced apoptosis. The aim of the present study was to explore the role of PERK pathway in neuronal apoptosis in the mPFC of rat models of PTSD...
April 8, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28388829/evidence-based-practice-beliefs-and-implementation-in-doctor-of-nursing-practice-students
#18
Joanne K Singleton
BACKGROUND: Doctors of Nursing Practice focus on leadership in evidence-based practice (EBP). EBP is influenced by one's beliefs in and implementation of EBP. Little is known to date about the EBP beliefs and implementation of Doctor of Nursing Practice students and outcomes of Doctor of Nursing Practice education. AIMS: Guided by the Advancing Research and Clinical practice through close Collaboration (ARCC) Model, the Evidence-Based Practice Beliefs (EBPB) and Implementation (EBPI) tools were used to assess the impact of EBP as a program pillar, curricular thread, and content area on EBPB and EBPI of Doctor of Nursing Practice-Family Nurse Practitioner students...
April 7, 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28384383/tactics-for-teaching-evidence-based-practice-enhancing-active-learning-strategies-with-a-large-class-of-graduate-ebp-research-in-nursing-students
#19
Mary Jo Vetter, Beth Latimer
This column shares the best evidence-based strategies and innovative ideas on how to facilitate the learning and implementation of EBP principles and processes by clinicians as well as nursing and interprofessional students. Guidelines for submission are available at http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1741-6787.
April 6, 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28384222/functional-studies-of-e-faecalis-rnase-j2-and-its-role-in-virulence-and-fitness
#20
Peng Gao, Kenneth L Pinkston, Agathe Bourgogne, Barbara E Murray, Ambro van Hoof, Barrett R Harvey
Post-transcriptional control provides bacterial pathogens a method by which they can rapidly adapt to environmental change. Dual exo- and endonucleolytic activities of RNase J enzymes contribute to Gram-positive RNA processing and decay. First discovered in Bacillus subtilis, RNase J1 plays a key role in mRNA maturation and degradation, while the function of the paralogue RNase J2 is largely unknown. Previously, we discovered that deletion of the Enterococcus faecalis rnjB gene significantly attenuates expression of a major virulence factor involved in enterococcal pathogenesis, the Ebp pili...
2017: PloS One
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