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https://www.readbyqxmd.com/read/29224243/discovery-of-a-novel-thermostable-zn2-dependent-alcohol-dehydrogenase-from-chloroflexus-aurantiacus-through-conserved-domains-mining
#1
Christoph Loderer, David Wagner, Frances Morgenstern, Antje Spieß, Marion B Ansorge-Schumacher
AIMS: The purpose of the study was to demonstrate feasibility of the Conserved Domains Database (CDD) for identification of novel biocatalysts with desirable properties from a class of well-characterized biocatalysts. METHODS AND RESULTS: The thermostable ADH from Sulfolobus solfataricus with a broad substrate range was applied as a template for the search for novel thermostable ADHs via Conserved Domains Database. From the resulting hits, a putative ADH gene from the thermophilic organism Chloroflexus aurantiacus was cloned and expressed in E...
December 10, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29224219/measuring-school-functioning-in-students-with-chronic-fatigue-syndrome-a-systematic-review
#2
Michelle Tollit, Jennifer Politis, Sarah Knight
BACKGROUND: It is often surmised that school functioning is significantly impacted in chronic fatigue syndrome (CFS); however, how this phenomenon manifests itself has rarely been characterized. METHODS: This systematic review synthesized and critically appraised methods, constructs, and instruments used to assess school functioning in students with CFS. Searches were conducted in electronic databases (CINAHL, MEDLINE, PubMed, ERIC, and PsycINFO) to locate empirical studies that measured school functioning in children and adolescents with CFS...
January 2018: Journal of School Health
https://www.readbyqxmd.com/read/29224108/negative-impact-of-testosterone-deficiency-and-5%C3%AE-reductase-inhibitors-therapy-on-metabolic-and-sexual-function-in-men
#3
Abdulmaged M Traish
Androgens are steroid hormones with pleotropic and diverse biochemical and physiological functions, and androgen deficiency exerts a negative impact on human health. Testosterone (T) either directly or via its transformation into the more potent metabolite 5α-dihydrotestosterone (5α-DHT) or via aromatization into estradiol (E2) modulates important biochemical signaling pathways of human physiology and plays a critical role in the growth and/or maintenance of functions in a host of tissues and organs. T and 5α-DHT play an important role in regulating physiology of the muscle, adipose tissue, liver, bone, and central nervous system, as well as reproductive and sexual functions...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29223965/advancing-prevention-of-sexually-transmitted-infections-through-point-of-care-testing-target-product-profiles-and-landscape-analysis
#4
Igor Toskin, Maurine Murtagh, Rosanna W Peeling, Karel Blondeel, Joanna Cordero, James Kiarie
OBJECTIVES: Advancing the field of point-of-care testing (POCT) for STIs can rapidly and substantially improve STI control and prevention by providing targeted, essential STI services (case detection and screening). POCT enables definitive diagnosis and appropriate treatment in a single visit and home and community-based testing. METHODS: Since 2014, the WHO Department of Reproductive Health and Research, in collaboration with technical partners, has completed four landscape analyses of promising diagnostics for use at or near the point of patient care to detect syphilis, Neisseria gonorrhoeae, Chlamydia trachomatis, Trichomonas vaginalis and the human papillomavirus...
December 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/29223806/preventing-the-n-terminal-processing-of-human-interferon-%C3%AE-2b-and-its-chimeric-derivatives-expressed-in-escherichia-coli
#5
Fatima Ahsan, Qurratulann Afza Gardner, Naeem Rashid, Greg J Towers, Muhammad Akhtar
We have previously shown that human interferon α-2b (IFN) produced in Escherichia coli (E. coli) is heterogeneous at the N-terminal, with three major species (Ahsan et al., 2014). These are: (a) the direct translation product of the gene retaining the N-terminal methionine, (b) a species from which the methionyl residue has been removed by E. coli methionyl aminopeptidase to give the native interferon α-2b and (c) in which the N-terminal Cys residue of the latter contains an acetyl group. In this paper we overcome this heterogeneity, using engineered interferon derivatives with phenylalanine residue directly downstream of the N-terminal methionine (Met-Phe-IFN)...
November 23, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29223767/evaluation-of-a-national-pediatric-subinternship-curriculum-implemented-through-individual-learning-plans
#6
Linda R Tewksbury, Cristina Carter, Lyuba Konopasek, Sandra M Sanguino, Janice L Hanson
OBJECTIVE: The Council on Medical Student Education in Pediatrics and Association of Pediatric Program Directors developed a Pediatric Subinternship (CAPS) Curriculum for use with an individualized learning plan (ILP). The authors determined which learning objectives (LOs) pediatric subinterns selected when provided the CAPS Curriculum, summarized students' self-reported progress, and determined feasibility of ILPs in subinternship. METHODS: Students from 10 medical schools completed a standardized ILP during pediatric subinternship...
December 6, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/29223663/patch-esophagoplasty-using-an-in-body-tissue-engineered-collagenous-connective-tissue-membrane
#7
Hiroomi Okuyama, Satoshi Umeda, Yuichi Takama, Takeshi Terasawa, Yasuhide Nakayama
AIM: Although many approaches to esophageal replacement have been investigated, these efforts have thus far only met limited success. In-body-tissue-engineered connective tissue tubes have been reported to be effective as vascular replacement grafts. The aim of this study was to investigate the usefulness of an In-body-tissue-engineered collagenous connective tissue membrane, "Biosheet", as a novel esophageal scaffold in a beagle model. METHODS: We prepared Biosheets by embedding specially designed molds into subcutaneous pouches in beagles...
November 13, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29223594/femoral-neck-fractures-after-removal-of-hardware-in-healed-trochanteric-fractures
#8
REVIEW
Antonio Barquet, Peter V Giannoudis, Andrés Gelink
INTRODUCTION: Hardware removal in healed trochanteric fractures (TF) in the absence of infection or significant mechanical complications is rarely indicated. However, in patients with persistent pain, prominent material and discomfort in the activities of daily living, the implant is eventually removed. Publications of ipsilateral femoral neck fracture after removal of implants from healed trochanteric fractures (FNFARIHTF) just because of pain or discomfort are rare. The purpose of this systematic review of the literature is to report on the eventual risk factors, the mechanisms, the clinical presentation, and frequency, and to pay special emphasis in their prevention...
December 2017: Injury
https://www.readbyqxmd.com/read/29223494/dental-functional-morphology-predicts-the-scaling-of-chewing-rate-in-mammals
#9
Indrė Žliobaitė, Mikael Fortelius
How food intake and mastication scale to satisfy the metabolic needs of mammals has been the subject of considerable scientific debate. Existing theory suggests that the negative allometric scaling of metabolic rate with body mass is compensated by a matching allometric scaling of the chewing rate. Why empirical studies have found that the scaling coefficients of the chewing rate seem to be systematically smaller than expected from theory remains unknown. Here we explain this imparity by decoupling the functional surface area of teeth from overall surface area...
November 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29223443/response-to-pioglitazone-in-patients-with-nonalcoholic-steatohepatitis-with-vs-without-type-2-diabetes
#10
Fernando Bril, Srilaxmi Kalavalapalli, Virginia C Clark, Romina Lomonaco, Consuelo Soldevila-Pico, I-Chia Liu, Beverly Orsak, Fermin Tio, Kenneth Cusi
BACKGROUND & AIMS: Pioglitazone is effective for long-term treatment of patients with nonalcoholic steatohepatitis (NASH) with prediabetes or type-2 diabetes. However, it is not clear how the presence of type-2 diabetes affects the drug's efficacy. We compared metabolic and histologic responses to pioglitazone in patients with NASH and prediabetes vs type-2 diabetes. METHODS: We performed a prospective study of adults with biopsy-proven NASH (52 with type-2 diabetes and 49 with prediabetes), enrolled from the general population of San Antonio, Texas from 2008 through 2014...
December 6, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29223424/outcome-after-lung-volume-reduction-surgery-in-patients-with-severely-impaired-diffusion-capacity
#11
Claudio Caviezel, Nadja Schaffter, Didier Schneiter, Daniel Franzen, Ilhan Inci, Isabelle Opitz, Walter Weder
BACKGROUND: Lung volume reduction surgery (LVRS) has been proven to be a successful procedure and can be performed with low mortality when defined selection criteria are met. We hypothesized good outcome and low mortality after LVRS for selected patients with severe hyperinflation and nonhomogeneous morphology even when diffusion capacity of the lung for carbon monoxide (Dlco) is less than 20%. METHODS: The study included all patients scheduled for LVRS between March 2005 and May 2014 with a preoperative Dlco of less than 20%...
December 6, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29223420/her2-confers-resistance-to-foretinib-inhibition-of-met-amplified-esophageal-adenocarcinoma-cells
#12
Alexei A Goltsov, Bingliang Fang, Tej K Pandita, Dipen M Maru, Stephen G Swisher, Wayne L Hofstetter
BACKGROUND: Recent genomic studies indicated that esophageal adenocarcinoma (EAC) is driven by amplification of c-MET or HER2 or both in a subset of patients. We studied the effect of MET targeting by the small molecule inhibitor foretinib in EAC cells and the interplay between MET and HER2 signaling. METHODS: We measured the expression levels and phosphorylation status of MET and HER2 proteins in EAC cell lines using Western blot analysis. The expression levels of MET and HER2 were manipulated by transfecting cells with specific siRNA or a plasmid expressing HER2...
December 6, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29223366/therapeutic-efficacy-and-safety-of-umbilical-cord-mesenchymal-stem-cell-transplantation-for-liver-cirrhosis-in-chinese-population-a-meta-analysis
#13
Weiwei Sang, Benji Lv, Ke Li, Yan Lu
BACKGROUND AND OBJECTIVE: Mesenchymal stem cells transfusion has been considered as a promising option for liver cirrhosis (LC). The aim of this study was to systematically evaluate the efficacy and safety of umbilical cord mesenchymal stem cells (UMSC) combined with traditional supportive therapy (TST) for the treatment of patients with LC. METHODS: Data was extracted from clinical trials published on Web of Science, PubMed, EMBASE, Cochrane Library, Wanfang and CNKI database...
December 6, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29223290/clinical-research-at-territorial-section-meetings-of-the-spanish-academy-of-dermatology-and-venereology-aedv
#14
Á Iglesias-Puzas, A Batalla, Á Flórez
INTRODUCTION: Clinical research is the study of patients with the aim of improving care. Our objectives were to calculate the percentage of presentations at territorial section meetings of the Spanish Academy of Dermatology and Venereology (AEDV) that described clinical research, to assess the level of evidence the research provided, and to analyze change in clinical research volume over time. MATERIAL AND METHODS: We reviewed supplements of the journal Actas Dermosifiliográficas for 2000 through 2015 that contained abstracts of presentations given at the AEDV section meetings in Galicia; the area comprising Asturias, Cantabria, and Castile-Leon (ACCL); and Andalusia...
December 6, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/29223174/relationships-between-the-neighborhood-environment-and-depression-in-older-adults-a-systematic-review-and-meta-analysis
#15
Anthony Barnett, Casper J P Zhang, Janice M Johnston, Ester Cerin
BACKGROUND: While depression is a growing public health issue, the percentage of individuals with depression receiving treatment is low. Physical and social attributes of the neighborhood may influence the level of depressive symptoms and the prevalence of depression in older adults. METHODS: This review systematically examined the literature on neighborhood environmental correlates of depression in older adults. Findings were analyzed according to three depression outcomes: depressive symptoms, possible depression, and clinical depression...
December 10, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/29223132/homelessness-and-emergency-medicine-a-review-of-the-literature
#16
Bisan A Salhi, Melissa H White, Stephen R Pitts, David W Wright
OBJECTIVES: We aimed to synthesize the available evidence on the demographics, prevalence, and clinical characteristics, and evidence-based management of homeless persons in the Emergency Department (ED). Where appropriate, we highlight knowledge gaps and suggest directions for future research. METHODS: We conducted a systematic literature search following databases: PubMed, Ovid, and Google Scholar for articles published between January 1, 1990 and December 31, 2016...
December 9, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29223110/systemic-inflammatory-markers-associated-with-cardiovascular-disease-and-acute-and-chronic-exposure-to-fine-particulate-matter-air-pollution-pm2-5-among-us-nhanes-adults-with-metabolic-syndrome
#17
Arvind Dabass, Evelyn O Talbott, Judith R Rager, Gary M Marsh, Arvind Venkat, Fernando Holguin, Ravi K Sharma
BACKGROUND: There has been no investigation to date of adults with metabolic syndrome examining the association of short and long-term exposure to fine particulate matter (PM2.5) air pollution with cardiovascular-disease related inflammatory marker (WBC and CRP) levels in a nationally representative sample. The goal of this study is to assess the susceptibility of adults with metabolic syndrome to PM2.5 exposure as suggested by increased cardiovascular-disease related inflammatory marker levels...
December 6, 2017: Environmental Research
https://www.readbyqxmd.com/read/29223041/understanding-motivations-for-dietary-supplementation-during-pregnancy-a-focus-group-study
#18
Lenka Malek PhD, Wendy J Umberger PhD, Maria Makrides PhD, Carmel T Collins PhD, Shao Jia Zhou PhD
OBJECTIVE: to increase understanding of psychosocial factors (behavioural, normative and control beliefs) motivating vitamin and mineral supplement use during pregnancy. DESIGN: ten focus group discussions and two in-depth interviews were conducted using a script comprising questions based on study objectives. All discussions were recorded, transcribed verbatim and analysed using a framework approach. SETTING: South Australia, Australia. SUBJECTS: 40 women aged 21-45 years who were either pregnant or<12 months postpartum...
November 26, 2017: Midwifery
https://www.readbyqxmd.com/read/29222971/the-divergent-impact-of-catechol-o-methyltransferase-comt-val158met-genetic-polymorphisms-on-executive-function-in-adolescents-with-discrete-patterns-of-childhood-adversity
#19
Huihui Zhang, Jie Li, Bei Yang, Tao Ji, Zhouting Long, Qiquan Xing, Di Shao, Huayu Bai, Jiwei Sun, Fenglin Cao
PURPOSE: Catechol-O-methyltransferase (COMT) Val158Met functional polymorphisms play a crucial role in the development of executive function (EF), but their effect may be moderated by environmental factors such as childhood adversity. The present study aimed at testing the divergent impact of the COMT Val158Met genotype on EF in non-clinical adolescents with discrete patterns of childhood adversity. METHODS: A total of 341 participants completed the Childhood Trauma Questionnaire, the self-reported version of the Behavior Rating Inventory of Executive Function, and self-administered questionnaires on familial function...
November 22, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29222892/benefit-of-oral-nutritional-supplements-for-children-with-acute-lymphoblastic-leukaemia-during-remission-induction-chemotherapy-a-quasi-experimental-study
#20
Rui Liang, Gai-Yun Chen, San-Xian Fu, Jie Zhong, Yan Ma
BACKGROUND AND OBJECTIVES: To determine the effect of oral nutritional supplements (ONS) on children with acute lymphoblastic leukaemia undergoing remission-induction chemotherapy. METHODS AND STUDY DESIGN: We included 127 paediatric patients who were diagnosed with acute lymphoblastic leukaemia and undergoing remission- induction chemotherapy in the First Affiliated Hospital of Zhengzhou University. Children from two paediatric wards who met the inclusion criteria were enrolled...
2018: Asia Pacific Journal of Clinical Nutrition
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