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https://www.readbyqxmd.com/read/28817927/identification-of-biosynthetic-gene-clusters-from-metagenomic-libraries-using-pptase-complementation-in-a-streptomyces-host
#1
J Kipchirchir Bitok, Christophe Lemetre, Melinda A Ternei, Sean F Brady
The majority of environmental bacteria are not readily cultured in the lab, leaving the natural products they make inaccessible using culture-dependent discovery methods. Cloning and heterologous expression of DNA extracted from environmental samples (environmental DNA, eDNA) provides a means of circumventing this discovery bottleneck. To facilitate the identification of clones containing biosynthetic gene clusters, we developed a model heterologous expression reporter strain Streptomyces albus::bpsA ΔPPTase...
September 1, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28817825/muscle-strength-and-muscle-mass-in-older-patients-during-hospitalization-the-empower-study
#2
Jeanine M Van Ancum, Kira Scheerman, Vincent D Pierik, Siger T Numans, Sjors Verlaan, Hanne E Smeenk, Monique Slee-Valentijn, Roeliene C Kruizinga, Carel G M Meskers, Andrea B Maier
BACKGROUND: Low muscle strength and muscle mass are associated with an increased length of hospital stay and higher mortality rate in inpatients. To what extent hospitalization affects muscle strength and muscle mass is unclear. OBJECTIVE: We aimed to assess muscle strength and muscle mass at admission and during hospitalization in older patients and its relation with being at risk of geriatric conditions. METHODS: The EMPOWER study included patients aged 70 years and older, admitted to 4 wards of the VU University Medical Center in the Netherlands between April and December 2015...
August 18, 2017: Gerontology
https://www.readbyqxmd.com/read/28817700/the-loss-and-recovery-of-vertebrate-vision-examined-in-microplates
#3
Robert J Thorn, Danielle E Clift, Oladele Ojo, Ruth M Colwill, Robbert Creton
Regenerative medicine offers potentially ground-breaking treatments of blindness and low vision. However, as new methodologies are developed, a critical question will need to be addressed: how do we monitor in vivo for functional success? In the present study, we developed novel behavioral assays to examine vision in a vertebrate model system. In the assays, zebrafish larvae are imaged in multiwell or multilane plates while various red, green, blue, yellow or cyan objects are presented to the larvae on a computer screen...
2017: PloS One
https://www.readbyqxmd.com/read/28817613/diflunisal-inhibits-prestin-by-chloride-dependent-mechanism
#4
Guillaume Duret, Fred A Pereira, Robert M Raphael
The motor protein prestin is a member of the SLC26 family of anion antiporters and is essential to the electromotility of cochlear outer hair cells and for hearing. The only direct inhibitor of electromotility and the associated charge transfer is salicylate, possibly through direct interaction with an anion-binding site on prestin. In a screen to identify other inhibitors of prestin activity, we explored the effect of the non-steroid anti-inflammatory drug diflunisal, which is a derivative of salicylate. We recorded prestin activity by whole-cell patch clamping HEK cells transiently expressing prestin and mouse outer hair cells...
2017: PloS One
https://www.readbyqxmd.com/read/28817186/a-prognostic-11genes-expression-model-for-ovarian-cancer
#5
Chuan-Di Men, Qiong-Na Liu, Qing Ren
The symptoms of ovarian cancer at early stages are usually absent which makes the diagnosis in its early stages exceedingly difficult. Previous research has proven that ovarian cancer is a genetic disease, which depends on the alteration of multi-cancer related genes and anti-cancer genes, multi-stages and multi-pathways, involving a variety of oncogene activation and anti-oncogene inactivation. For a better understanding of the prognostic classification of ovarian cancer, gene expression profiles were used to analyse the prognostic factors of ovarian cancer, and the prognostic model was used to classify the ovarian cancer samples...
August 17, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28817164/prediction-of-acute-inhalation-toxicity-using-in-vitro-lung-surfactant-inhibition
#6
Jorid B Sørli, Yishi Huang, Emilie Da Silva, Jitka S Hansen, Yi Y Zuo, Marie Frederiksen, Asger W Nørgaard, Niels E Ebbehøj, Søren T Larsen, Karin S Hougaard
Private consumers and professionals may experience acute inhalation toxicity after inhaling aerosolized impregnation products. The distinction between toxic and non-toxic products is difficult to make for producers and product users alike, as there is no clearly described relationship between the chemical composition of the products and induction of toxicity. The currently accepted method for determination of acute inhalation toxicity is based on experiments on animals; it is time-consuming, expensive and causes stress for the animals...
August 17, 2017: ALTEX
https://www.readbyqxmd.com/read/28817124/directed-differentiation-and-long-term-maintenance-of-epicardial-cells-derived-from-human-pluripotent-stem-cells-under-fully-defined-conditions
#7
Xiaoping Bao, Xiaojun Lian, Tongcheng Qian, Vijesh J Bhute, Tianxiao Han, Sean P Palecek
Here, we describe how to efficiently direct human pluripotent stem cells (hPSCs) differentiation into self-renewing epicardial cells in a completely defined, xeno-free system by temporal modulation of regulators of canonical Wnt signaling. Appropriate differentiation-stage-specific application of Gsk3 inhibitor, Wnt inhibitor, and Gsk3 inhibitor (GiWiGi) is sufficient to produce cells expressing epicardial markers and exhibiting epicardial phenotypes with a high yield and purity from multiple hPSC lines in 16 d...
September 2017: Nature Protocols
https://www.readbyqxmd.com/read/28816514/functional-impairment-matters-in-the-screening-and-diagnosis-of-gaming-disorder
#8
Joël Billieux, Daniel L King, Susumu Higuchi, Sophia Achab, Henrietta Bowden-Jones, Wei Hao, Jiang Long, Hae Kook Lee, Marc N Potenza, John B Saunders, Vladimir Poznyak
This commentary responds to Aarseth et al.'s (in press) criticisms that the ICD-11 Gaming Disorder proposal would result in "moral panics around the harm of video gaming" and "the treatment of abundant false-positive cases." The ICD-11 Gaming Disorder avoids potential "overpathologizing" with its explicit reference to functional impairment caused by gaming and therefore improves upon a number of flawed previous approaches to identifying cases with suspected gaming-related harms. We contend that moral panics are more likely to occur and be exacerbated by misinformation and lack of understanding, rather than proceed from having a clear diagnostic system...
August 17, 2017: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/28816350/characteristics-and-functionality-of-appetite-reducing-thylakoid-powders-produced-by-three-different-drying-processes
#9
Karolina Östbring, Ingegerd Sjöholm, Henrietta Sörenson, Andrej Ekholm, Charlotte Erlanson-Albertsson, Marilyn Rayner
BACKGROUND: Thylakoids, a chloroplast membrane extracted from green leaves, is a promising functional ingredient with appetite reducing properties via their lipase-inhibiting effect. Thylakoids in powder form has been evaluated in animal and human models but no comprehensive study has been conducted on powder characteristics. The aim was to investigate the effects of different isolation methods and drying techniques (drum-drying, spray-drying, freeze-drying) on thylakoids' physicochemical and functional properties...
August 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28816269/-microrna-differential-expression-profile-in-tuberous-sclerosis-complex-cell-line-tsc2-mefs-and-normal-cell-line-tsc2-mefs
#10
Y Cai, H Guo, H Z Li, W D Wang, Y S Zhang
OBJECTIVE: Tuberous sclerosis complex (TSC) is a multisystem genetic disorder caused by mutations in the TSC1 and TSC2 genes, but the molecular events contributing to TSC are not well understood. However, little is known about the role of microRNAs in TSC. To explore the microRNA differential expression profile between tuberous sclerosis complex cell line TSC2(-/-) MEFs and normal type cell line TSC2(+/+) MEFs, and to provide new clues to study the mechanism of microRNA function in tuberous sclerosis complex...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28816234/novel-mutations-of-tcirg1-cause-a-malignant-and-mild-phenotype-of-autosomal-recessive-osteopetrosis-aro-in-four-chinese-families
#11
Xiao-Ya Zhang, Jin-Wei He, Wen-Zhen Fu, Chun Wang, Zhen-Lin Zhang
Human autosomal recessive osteopetrosis (ARO), also known as infantile malignant osteopetrosis, is a rare genetic bone disorder that often causes death. Mutations in T-cell immune regulator 1 (TCIRG1) are a frequent cause of human ARO. Six additional genes (TNFSF11, TNFRSF11A, CLCN7, OSTM1, SNX10, PLEKHM1) were also found to be associated with human ARO. In order to expand the mutation spectrum and clinical diversity for a better understanding of the ARO phenotype and to further investigate the clinical characteristics of benign subjects with ARO, we here report five individuals with ARO from four unrelated Chinese families...
August 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28815654/early-predictors-of-psychosocial-functioning-5-years-after-paediatric-stroke
#12
Mardee Greenham, Vicki Anderson, Anna Cooper, Stephen Hearps, Michael Ditchfield, Lee Coleman, Rod W Hunt, Mark T Mackay, Paul Monagle, Anne L Gordon
AIM: Little is known about psychological and social outcomes after paediatric stroke. This study aimed to evaluate psychosocial outcomes in children 5 years after paediatric stroke and explore the contribution of early presenting factors. METHOD: Thirty-one children (19 males and 12 females) with arterial ischemic stroke were involved in this prospective, longitudinal study. Children underwent intellectual assessment at 12 months poststroke and parents completed questionnaires rating their own mental health and their child's functioning at 12 months and 5 years poststroke...
August 17, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28815571/functional-electrical-stimulation-of-the-ankle-dorsiflexors-during-walking-in-spastic-cerebral-palsy-a-systematic-review
#13
REVIEW
Irene Moll, Johannes S H Vles, Dan L H M Soudant, Adhiambo M A Witlox, Heleen M Staal, Lucianne A W M Speth, Yvonne J M Janssen-Potten, Marcel Coenen, Suzanne M Koudijs, R Jeroen Vermeulen
AIM: To assess the effect of functional electrical stimulation (FES) of ankle dorsiflexors in children and adolescents with spastic cerebral palsy (CP) during walking. METHOD: A systematic review was performed using the American Academy of Cerebral Palsy and Developmental Medicine methodology and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Six databases were searched for studies applying interventions to patients aged younger than 20 years...
August 17, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28815445/identification-and-treatment-optimization-of-comorbid-depression-in-rheumatoid-arthritis
#14
Mellissa H Withers, Louella T Gonzalez, George A Karpouzas
Patients with rheumatoid arthritis (RA) suffer from high rates of depression but depression often remains undiagnosed and untreated among RA patients. Because of its high prevalence and its profound impact on functional disability and health-related quality of life, prompt recognition and management of comorbid depression is urgently needed in patients with RA. Rheumatologists face the challenge of addressing depression in their clinical interactions with patients. The purpose of this paper is to present the prevalence of comorbid depression in RA, to delineate the consequences of depression among RA patients, to discuss the barriers to the identification of depression among RA patients, and to outline a set of recommendations to identify and treat comorbid depression that could be implemented within the rheumatology clinic setting...
August 16, 2017: Rheumatology and Therapy
https://www.readbyqxmd.com/read/28815388/guiding-patients-toward-the-appropriate-surgical-treatment-for-obesity-should-presurgery-psychological-correlates-influence-choice-between-roux-en-y-gastric-bypass-and-vertical-sleeve-gastrectomy
#15
Gretchen E Ames, Michael G Heckman, Nancy N Diehl, Dustin M Shepherd, Allison A Holgerson, Karen B Grothe, Todd A Kellogg, Steven P Bowers, Matthew M Clark
BACKGROUND: Helping patients determine which type of bariatric surgery, Roux-en-Y gastric bypass (RYGB) or vertical sleeve gastrectomy (VSG), may be the best treatment can be challenging. This study investigated psychological correlates and their influence on weight loss for patients who underwent RYGB or VSG. METHODS: Four hundred twenty-two patients (RYGB = 305; VSG = 117) completed screening questionnaires presurgery and underwent surgery between August 2012 and April 2015...
August 16, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28815363/the-use-of-natural-language-processing-on-pediatric-diagnostic-radiology-reports-in-the-electronic-health-record-to-identify-deep-venous-thrombosis-in-children
#16
Jorge A Gálvez, Janine M Pappas, Luis Ahumada, John N Martin, Allan F Simpao, Mohamed A Rehman, Char Witmer
Venous thromboembolism (VTE) is a potentially life-threatening condition that includes both deep vein thrombosis (DVT) and pulmonary embolism. We sought to improve detection and reporting of children with a new diagnosis of VTE by applying natural language processing (NLP) tools to radiologists' reports. We validated an NLP tool, Reveal NLP (Health Fidelity Inc, San Mateo, CA) and inference rules engine's performance in identifying reports with deep venous thrombosis using a curated set of ultrasound reports...
August 16, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28815300/holaphyllamine-a-steroid-is-able-to-induce-defense-responses-in-arabidopsis-thaliana-and-increases-resistance-against-bacterial-infection
#17
Abderrakib Zahid, Rim Jaber, Ferdousse Laggoun, Arnaud Lehner, Isabelle Remy-Jouet, Olivier Pamlard, Sandra Beaupierre, Jérome Leprince, Marie-Laure Follet-Gueye, Maïté Vicré-Gibouin, Xavier Latour, Vincent Richard, Catherine Guillou, Patrice Lerouge, Azeddine Driouich, Jean-Claude Mollet
A chemical screen of plant-derived compounds identified holaphyllamine, a steroid, able to trigger defense responses in Arabidopsis thaliana and improve resistance against the pathogenic bacterium Pseudomonas syringae pv tomato DC3000. A chemical screen of 1600 plant-derived compounds was conducted and allowed the identification of a steroid able to activate defense responses in A. thaliana at a concentration of 1 µM without altering growth. The identified compound is holaphyllamine (HPA) whose chemical structure is similar to steroid pregnanes of mammals...
August 16, 2017: Planta
https://www.readbyqxmd.com/read/28815176/strategies-for-retinal-cell-generation-from-human-pluripotent-stem-cells
#18
REVIEW
Lindsey S Weed, Jason A Mills
Induced pluripotent stem cells (iPSCs) are specialized self-renewing cells that are generated by exogenously expressing pluripotency-associated transcription factors in somatic cells such as fibroblasts, peripheral blood mononuclear cells, or lymphoblastoid cell lines (LCLs). iPSCs are functionally similar to naturally pluripotent embryonic stem cells (ESCs) in their capacity to propagate indefinitely and potential to differentiate into all human cell types, and are devoid of the associated ethical complications of origin...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28814853/improving-adherence-to-alpha-1-antitrypsin-deficiency-screening-guidelines-using-the-pulmonary-function-laboratory
#19
Landy V Luna Diaz, Isabella Iupe, Bruno Zavala, Kira C Balestrini, Andrea Guerrero, Gregory Holt, Rafael Calderon-Candelario, Mehdi Mirsaeidi, Michael Campos
No abstract text is available yet for this article.
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28813968/changes-in-neuromuscular-activity-during-motor-training-with-a-body-machine-interface-after-spinal-cord-injury
#20
C Pierella, A De Luca, E Tasso, F Cervetto, S Gamba, L Losio, E Quinland, A Venegoni, S Mandraccia, I Muller, A Massone, F A Mussa-Ivaldi, M Casadio
Body machine interfaces (BMIs) are used by people with severe motor disabilities to control external devices, but they also offer the opportunity to focus on rehabilitative goals. In this study we introduced in a clinical setting a BMI that was integrated by the therapists in the rehabilitative treatments of 2 spinal cord injured (SCI) subjects for 5 weeks. The BMI mapped the user's residual upper body mobility onto the two coordinates of a cursor on a screen. By controlling the cursor, the user engaged in playing computer games...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
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