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https://www.readbyqxmd.com/read/28330232/high-quality-metagenomic-dna-from-marine-sediment-samples-for-genomic-studies-through-a-preprocessing-approach
#1
Solly Solomon, Bhavya Kachiprath, G Jayanath, T P Sajeevan, I S Bright Singh, Rosamma Philip
Recent advances in culture-independent studies of microbes had proved to be more reliable and efficient than the conventional ones. The isolation of good quality and quantity of total community DNA are one of the major hurdles in this endeavour. Shearing of DNA during the extraction process and the co-extraction of inhibitory compounds reduce the quality of the isolated nucleic acids making it unsuitable for the construction of large insert metagenomic libraries. In the present study, a multi-level filtration step was brought in which efficiently isolated total bacterial DNA from three different environment samples...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329726/folate-biofortification-in-food-crops
#2
REVIEW
Simon Strobbe, Dominique Van Der Straeten
Folates are essential vitamins in the human diet. Folate deficiency is still very common, provoking disorders such as birth defects and anemia. Biofortification via metabolic engineering is a proven powerful means to alleviate folate malnutrition. A variety of metabolic engineering approaches have been successfully implemented in different crops and tissues. Furthermore, ensuring folate stability is crucial for long-term storage of crop products. However, the current strategies, shown to be successful in rice and tomato, will need to be fine-tuned to enable adequate biofortification of other staples such as potato, wheat and cassava...
March 19, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28329087/clinical-definitions-of-sarcopenia-and-risk-of-hospitalization-in-community-dwelling-older-men-the-osteoporotic-fractures-in-men-study
#3
Peggy M Cawthon, Li-Yung Lui, Brent C Taylor, Charles E McCulloch, Jane A Cauley, Jodi Lapidus, Eric Orwoll, Kristine E Ensrud
Background: The association between various definitions of sarcopenia and hospitalization has not been evaluated in community-dwelling older men. Methods: We used data from 1,516 participants at Visit 3 of the Osteoporotic Fractures in Men (MrOS) study who also had linked Medicare Fee-For-Service Claims data available. We examined the association between several sarcopenia definitions (International Working Group, European Working Group for Sarcopenia in Older Persons, Foundation for the NIH Sarcopenia Project, Baumgartner, and Newman) and hospitalization, using two-part ("hurdle") models, adjusted for age, clinical center, functional limitations, self-reported health, comorbidity, and cognitive function...
January 18, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28327901/data-resources-for-the-identification-and-interpretation-of-actionable-mutations-by-clinicians
#4
A Prawira, T J Pugh, T L Stockley, L L Siu
Following initial characterization of the reference human genome, initiatives have evolved worldwide to identify genomic aberrations in cancer with the aim of deriving diagnostic, prognostic and predictive information. However, the functional and clinical relevance of many somatic variants in cancer are presently unknown and there is no consensus definition of "actionability" for genomic aberrancies. Therefore, while robust detection of a variety of genetic aberrations in clinical specimens remains a technical hurdle, the greater challenge lies in the interpretation of these alterations...
January 24, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28327677/access-to-drugs-and-out-of-pocket-expenditure-in-primary-health-facilities
#5
A K Thapa, N Ghimire, S R Adhikari
BACKGROUND: The Government of Nepal promulgated health as a human right via Interim constitution and implemented Free Health Service Program in 2008 as a commitment to universalize basic health care services. So, the aim of this study was to understand reported access to medicine and health care services received by outpatients in public primary facilities. METHODS: The study followed cross sectional study design. Two hundred and thirty-four For data 234 out patients were interviewed on the day of the field visit in March and October 2014 across 28 primary health facilities of seven purposively selected districts representing three ecological belts and five development regions of the country...
September 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28324874/strategies-and-outcomes-of-repeat-mitral-valve-interventions-after-failed-mitraclip-therapy
#6
Carmelo Grasso, Sergio Buccheri, Davide Capodanno, Antonio Popolo Rubbio, Maria Elena Di Salvo, Salvatore Scandura, Sarah Mangiafico, Tatiana Salerno, Stefano Cannata, Veronica Dezio, Giuseppe Castania, Marco Barbanti, Piera Capranzano, Corrado Tamburino
Percutaneous mitral valve repair (PMVR) with the MitraClip system (Abbott Vascular, Santa Clara, CA, USA) is a valid therapeutic option for patients with severe mitral regurgitation (MR) deemed to be at high or prohibitive surgical risk. Despite the reassuring data on efficacy and long-term durability of the procedure, the proportion of patients with residual or relapsing severe MR after MitraClip therapy is not negligible. In light of the detrimental prognostic impact of severe MR, repeat interventions are increasingly performed in clinical practice using different techniques...
March 22, 2017: Cardiology
https://www.readbyqxmd.com/read/28324595/recent-advances-in-developing-antiviral-therapies-for-respiratory-syncytial-virus
#7
REVIEW
Brian C Shook, Kai Lin
Respiratory syncytial virus (RSV) infection presents a significant health challenge in small children, the elderly and immunocompromised patients. There is still a high unmet medical need among patients with RSV infection, and no specific antiviral therapy is available. The only approved agents are palivizumab, which has to be given prophylactically, mainly in high-risk infants, and ribavirin, which is rarely used due to toxicity concerns and questionable benefits. Efforts to develop new antiviral agents have been hampered by the perceived need for high safety hurdles in pediatric patient populations use and the lack of well-characterized druggable targets...
April 2017: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/28323317/the-health-insurance-gap-after-implementation-of-the-affordable-care-act-in-texas
#8
Gordon Gong, Cassandra C Huey, Coleman Johnson, Debra Curti, Billy U Philips
Households with incomes between 18% and 99% of the federal poverty level (FPL) are ineligible for Medicaid or enrollment in the health insurance exchange marketplace in Texas, resulting in the health insurance gap. We sought to determine the number of non-elderly adult Texans (NEATs) aged between 18 and 64 years in the insurance gap in rural vs urban areas in East Texas, West Texas, and South Texas. Data were obtained from the US Census Bureau website. In 2014, there were 1,101,000 NEATs in the insurance gap, accounting for 24...
March 1, 2017: Texas Medicine
https://www.readbyqxmd.com/read/28322922/antiviral-lectins-selective-inhibitors-of-viral-entry
#9
REVIEW
Carter A Mitchell, Koreen Ramessar, Barry R O'Keefe
Many natural lectins have been reported to have antiviral activity. As some of these have been put forward as potential development candidates for preventing or treating viral infections, we have set out in this review to survey the literature on antiviral lectins. The review groups lectins by structural class and class of source organism we also detail their carbohydrate specificity and their reported antiviral activities. The review concludes with a brief discussion of several of the pertinent hurdles that heterologous proteins must clear to be useful clinical candidates and cites examples where such studies have been reported for antiviral lectins...
March 16, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28322428/xenotransplantation-where-do-we-stand-in-2016
#10
Gisella L Puga Yung, Robert Rieben, Leo Bühler, Henk-Jan Schuurman, Jörg Seebach
Worldwide, there is a constant rise in the number of patients with end-stage organ failure in critical need for transplants, but the number of organs/cells available from deceased or living human donors is limited. Xenotransplantation using pig organs/tissues repre-sents a potential solution for this shortage; however, it has been hampered by a number of mainly immuno-logical hurdles. Remarkable progress was presented at the latest biennial (13th) international congress of the International Xenotransplantation Association, November 2015 in Melbourne, Australia, and the American Transplant Congress, May 2016 in Boston, USA...
March 21, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28321399/renocardiovascular-biomarkers-from-the-perspective-of-managing-chronic-kidney-disease-and-cardiovascular-disease
#11
REVIEW
Shinichiro Niizuma, Yoshitaka Iwanaga, Takaharu Yahata, Shunichi Miyazaki
Mortality among the patients with chronic kidney disease (CKD) and end-stage renal disease (ESRD) remains high because of the very high incidence of cardiovascular disease (CVD) such as coronary artery disease, cardiac hypertrophy, and heart failure. Identifying CVD in patients with CKD/ESRD remains a significant hurdle and the early diagnosis and therapy for CVD is crucial in these patients. Therefore, it is necessary for the better management to identify and utilize cardiovascular (CV) biomarkers in profiling CVD risk and enabling stratification of early mortality...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28320351/the-prevalence-and-factors-associated-for-anti-tuberculosis-treatment-non-adherence-among-pulmonary-tuberculosis-patients-in-public-health-care-facilities-in-south-ethiopia-a-cross-sectional-study
#12
Tadele Teshome Woimo, Wondwossen Kassahun Yimer, Temesgen Bati, Hailay Abrha Gesesew
BACKGROUND: Evidence exists pointing out how non-adherence to treatment remains a major hurdle to efficient tuberculosis control in developing countries. Many tuberculosis (Tb) patients do not complete their six-month course of anti-tuberculosis medications and are not aware of the importance of sputum re-examinations, thereby putting themselves at risk of developing multidrug-resistant and extensively drug-resistant forms of tuberculosis and relapse. However, there is a dearth of publications about non-adherence towards anti-Tb medication in these settings...
March 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28315816/longest-gallbladder-a-case-report
#13
Rahul Yadav, Jeevan Kankaria
INTRODUCTION: A gallbladder mucocele is the distention of the gallbladder by an inappropriate accumulation of mucus. Decreased bile flow, decreased gallbladder motility, and altered absorption of water from the gallbladder lumen are predisposing factors to biliary sludge. However, it is more likely to be a small part of a complex disease process involving inflammation of the gallbladder wall and changes to the lining of the gallbladder changing the consistency of its secretions. We would like to present a case of mucocele gallbladder operated successfully by laparoscopic cholecystectomy...
February 28, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28314733/genetics-implicate-common-mechanisms-in-autism-and-schizophrenia-synaptic-activity-and-immunity
#14
REVIEW
Xiaoming Liu, Zhengwei Li, Conghai Fan, Dongli Zhang, Jiao Chen
The diagnosis of debilitating psychiatric disorders like autism spectrum disorder (ASD) and schizophrenia (SCHZ) is on the rise. These are severe conditions that lead to social isolation and require lifelong professional care. Improved diagnosis of ASD and SCHZ provides early access to medication and therapy, but the reality is that the mechanisms and the cellular pathology underlying these conditions are mostly unknown at this time. Although both ASD and SCHZ have strong inherited components, genetic risk seems to be distributed in hundreds of variants, each conferring low risk...
March 17, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28306418/an-mrs-and-pet-guided-biopsy-tool-for-intraoperative-neuronavigational-systems
#15
Matthew Grech-Sollars, Babar Vaqas, Gerard Thompson, Tara Barwick, Lesley Honeyfield, Kevin O'Neill, Adam D Waldman
OBJECTIVE Glioma heterogeneity and the limitations of conventional structural MRI for identifying aggressive tumor components can limit the reliability of stereotactic biopsy and, hence, tumor characterization, which is a hurdle for developing and selecting effective treatment strategies. In vivo MR spectroscopy (MRS) and PET enable noninvasive imaging of cellular metabolism relevant to proliferation and can detect regions of more highly active tumor. Here, the authors integrated presurgical PET and MRS with intraoperative neuronavigation to guide surgical biopsy and tumor sampling of brain gliomas with the aim of improving intraoperative tumor-tissue characterization and imaging biomarker validation...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28303769/neoepitopes-as-cancer-immunotherapy-targets-key-challenges-and-opportunities
#16
Cory A Brennick, Mariam M George, William L Corwin, Pramod K Srivastava, Hakimeh Ebrahimi-Nik
Over the last half century, it has become well established that cancers can elicit a host immune response that can target them with high specificity. Only within the last decade, with the advances in high-throughput gene sequencing and bioinformatics approaches, are we now on the forefront of harnessing the host's immune system to treat cancer. Recently, some strides have been taken toward understanding effective tumor-specific MHC I restricted epitopes or neoepitopes. However, many fundamental questions still remain to be addressed before this therapy can live up to its full clinical potential...
March 2017: Immunotherapy
https://www.readbyqxmd.com/read/28302153/students-as-effective-harm-reductionists-and-needle-exchange-organizers
#17
EDITORIAL
Kyle Barbour, Miriam McQuade, Brandon Brown
BACKGROUND: Needle exchange programs are safe, highly effective programs for promoting health among people who inject drugs. However, they remain poorly funded, and often illegal, in many places worldwide due to fear and stigma surrounding drug use. Continued advocacy, education, and implementation of new needle exchanges are thus essential to improve public health and reduce structural inequality. COMMENTARY: We argue that students, and especially professional and graduate students, have the potential to play an important role in advancing harm reduction...
March 17, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/28301389/ex-vivo-lung-perfusion-the-model-for-the-organ-reconditioning-hub
#18
Jonathan C Yeung, Marcelo Cypel, Shaf Keshavjee
PURPOSE OF REVIEW: Lung evaluation and reconditioning by ex-vivo lung perfusion (EVLP) is becoming increasingly established. We review strategies for broader implementation of this technology to transplant centers worldwide. RECENT FINDINGS: The organ reconditioning hub model is a viable strategy for disseminating EVLP to small and large transplant centers given the well tolerated prolongation of preservation time afforded by EVLP. Regulatory and process issues remain hurdles to be overcome...
March 15, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28301139/designing-hydrogels-for-on-demand-therapy
#19
Nuria Oliva, João Conde, Kui Wang, Natalie Artzi
Systemic administration of therapeutic agents has been the preferred approach to treat most pathological conditions, in particular for cancer therapy. This treatment modality is associated with side effects, off-target accumulation, toxicity, and rapid renal and hepatic clearance. Multiple efforts have focused on incorporating targeting moieties into systemic therapeutic vehicles to enhance retention and minimize clearance and side effects. However, only a small percentage of the nanoparticles administered systemically accumulate at the tumor site, leading to poor therapeutic efficacy...
March 16, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28300265/catalytic-routes-to-fuels-from-c1-and-oxygenate-molecules
#20
Shuai Wang, Iker Agirrezabal-Telleria, Aditya Bhan, Dante Simonetti, Kazuhiro Takanabe, Enrique Iglesia
This account illustrates concepts in chemical kinetics underpinned by the formalism of transition state theory using catalytic processes that enable the synthesis of molecules suitable as fuels from C1 and oxygenate reactants. Such feedstocks provide an essential bridge towards a carbon-free energy future, but their volatility and low energy density require the formation of new C-C bonds and the removal of oxygen. These transformations are described here through recent advances in our understanding of the mechanisms and site requirements in catalysis by surfaces, with emphasis on enabling concepts that tackle ubiquitous reactivity and selectivity challenges...
March 16, 2017: Faraday Discussions
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