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https://www.readbyqxmd.com/read/28733797/population-genetic-analysis-of-a-21-plex-dip-panel-in-seven-chinese-ethnic-populations
#1
Youjing Jiang, Wang He, Hui Wang, Dan Chen, Xiaogang Bai, Jienan Li, Weibo Liang, Lin Zhang
A 21-plex DIP (deletion and insertion polymorphism) panel has a good performance in analyzing biogeographic ancestry in three main global population groups (European, African, and Asian). This panel was used to investigate 450 unrelated individuals in seven Chinese ethnic groups (Han, Dong, Miao, Zhuang, Uyghur, Tibetan, and Mongolian). Allele frequencies were calculated. Mho (mean value of observed heterozygosity) ranged from 0.3019 to 0.4367, MHe (mean value of expected heterozygosity) ranged from 0.31175 to 0...
July 21, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28732339/aryl-and-alkyl-phosphorus-containing-flame-retardants-induced-mitochondrial-impairment-and-cell-death-in-chinese-hamster-ovary-cho-k1-cells
#2
Chao Huang, Na Li, Shengwu Yuan, Xiaoya Ji, Mei Ma, Kaifeng Rao, Zijian Wang
Phosphorus-containing flame retardants (PFRs) are increasingly in demand worldwide as replacements for brominated flame retardants (BFRs), but insufficient available toxicological information on PFRs makes assessing their health risks challenging. Mitochondria are important targets of various environmental pollutants, and mitochondrial dysfunction may lead to many common diseases. In the present study, mitochondria impairment-related endpoints were measured by a high content screening (HCS) assay for 11 selected non-halogen PFRs in Chinese hamster ovary (CHO-k1) cells...
July 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28687766/biochemical-properties-of-gh94-cellodextrin-phosphorylase-tha_1941-from-a-thermophilic-eubacterium-thermosipho-africanus-tcf52b-with-cellobiose-phosphorylase-activity
#3
Yuanyuan Wu, Guotao Mao, Haiyan Fan, Andong Song, Yi-Heng Percival Zhang, Hongge Chen
A hypothetic gene (THA_1941) encoding a putative cellobiose phosphorylase (CBP) from Thermosipho africanus TCF52B has very low amino acid identities (less than 12%) to all known GH94 enzymes. This gene was cloned and over-expressed in Escherichia coli BL21(DE3). The recombinant protein was hypothesized to be a CBP enzyme and it showed an optimum temperature of 75 °C and an optimum pH of 7.5. Beyond its CBP activity, this enzyme can use cellobiose and long-chain cellodextrins with a degree of polymerization of greater than two as a glucose acceptor, releasing phosphate from glucose 1-phosphate...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28680915/comparative-utility-of-disability-progression-measures-in-ppms-analysis-of-the-promise-data-set
#4
Marcus W Koch, Gary R Cutter, Gavin Giovannoni, Bernard M J Uitdehaag, Jerry S Wolinsky, Mat D Davis, Joshua R Steinerman, Volker Knappertz
OBJECTIVE: To assess the comparative utility of disability progression measures in primary progressive MS (PPMS) using the PROMiSe trial data set. METHODS: Data for patients randomized to placebo (n = 316) in the PROMiSe trial were included in this analysis. Disability was assessed using change in single (Expanded Disability Status Scale [EDSS], timed 25-foot walk [T25FW], and 9-hole peg test [9HPT]) and composite disability measures (EDSS/T25FW, EDSS/9HPT, and EDSS/T25FW/9HPT)...
July 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28679537/a-cost-effectiveness-analysis-of-condom-distribution-programmes-for-the-prevention-of-sexually-transmitted-infections-in-england
#5
Susannah Sadler, Jon Tosh, Rebekah Pennington, Andrew Rawdin, Hazel Squires, Carmen Romero, Alastair Fischer, James Chilcott
BACKGROUND: Prevention of sexually transmitted infection (STI) incidence in England is a high priority, particularly among young people, men who have sex with men (MSM) and black ethnic minorities. An economic evaluation of condom distribution programmes (CDPs) to reduce STI transmission is presented. METHODS: An economic model using a Bernoulli process estimated the number of people acquiring an STI as a function of its prevalence, transmission rate, condom use, condom failure rate and number of sexual contacts...
July 5, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28673963/yeast-pah1-encoded-phosphatidate-phosphatase-controls-the-expression-of-cho1-encoded-phosphatidylserine-synthase-for-membrane-phospholipid-synthesis
#6
Gil-Soo Han, George M Carman
The PAH1-encoded phosphatidate phosphatase (PAP), which catalyzes the committed step for the synthesis of triacylglycerol in Saccharomyces cerevisiae, exerts a negative regulatory effect on the level of phosphatidate used for the de novo synthesis of membrane phospholipids. This raises the question whether PAP thereby affects the expression and activity of enzymes involved in phospholipid synthesis. Here, we examined the PAP-mediated regulation of CHO1-encoded phosphatidylserine synthase (PSS), which catalyzes the committed step for the synthesis of major phospholipids via the CDP-diacylglycerol pathway...
July 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28668425/early-liver-metastases-in-resectable-periampullary-cancer-incidence-and-risk-factors
#7
A S Guerard, A Ayav, H Busby, M Lafitte, H Rousseau, V Laurent
PURPOSE: The aim of the present study was to estimate the incidence of very early hepatic metastases (HMs) (<6 months) and their imaging patterns after cephalic duodenopancreatectomy (CDP) for periampullary carcinoma (excluding duodenal carcinoma) and to identify their associated risk factors. METHODS: From January 2003 to June 2016, all patients who underwent surgical treatment for periampullary carcinoma by CDP at our institution and with adequate pre- and postoperative CT scans were included...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28668300/lipid-droplet-growth-and-adipocyte-development-mechanistically-distinct-processes-connected-by-phospholipids
#8
REVIEW
Yanfei Qi, Lei Sun, Hongyuan Yang
The differentiation of preadipocytes into mature adipocytes is accompanied by the growth and formation of a giant, unilocular lipid droplet (LD). Mechanistically however, LD growth and adipogenesis are two different processes. Recent studies have uncovered a number of proteins that are able to regulate both LD dynamics and adipogenesis, such as SEIPIN, LIPIN and CDP-Diacylglycerol Synthases. It appears that phospholipids, phosphatidic acid in particular, play a critical role in both LD budding/growth and adipocyte development...
June 28, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28666318/autologous-intramuscular-transplantation-of-engineered-satellite-cells-induces-exosome-mediated-systemic-expression-of-fukutin-related-protein-and-rescues-disease-phenotype-in-a-murine-model-of-limb-girdle-muscular-dystrophy-type-2i
#9
Paola Frattini, Chiara Villa, Francesca De Santis, Mirella Meregalli, Marzia Belicchi, Silvia Erratico, Pamela Bella, Manuela Teresa Raimondi, Qilong Lu, Yvan Torrente
α-Dystroglycanopathies are a group of muscular dystrophies characterized by α-DG hypoglycosylation and reduced extracellular ligand-binding affinity. Among other genes involved in the α-DG glycosylation process, fukutin related protein (FKRP) gene mutations generate a wide range of pathologies from mild limb girdle muscular dystrophy 2I (LGMD2I), severe congenital muscular dystrophy 1C (MDC1C), to Walker-Warburg Syndrome and Muscle-Eye-Brain disease. FKRP gene encodes for a glycosyltransferase that in vivo transfers a ribitol phosphate group from a CDP -ribitol present in muscles to α-DG, while in vitro it can be secreted as monomer of 60kDa...
June 29, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28656097/a-comparative-study-of-the-effect-of-nasal-intermittent-positive-pressure-ventilation-and-nasal-continuous-positive-airway-pressure-on-the-regional-brain-tissue-oximetry-in-premature-newborns-weighing-1500-g
#10
Alireza Sadeghnia, Marzieh Zamani Foroshani, Zohreh Badiei
BACKGROUND: Near-infrared spectroscopy (NIRS) provides the capability of monitoring oxygenation levels in cerebral microscopic vessels, enabling the operator to observe the spontaneous changes in the levels of hemoglobin concentration in tissue and interpret the resulting fluctuations. The current study tried to investigate whether brain's autoregulatory mechanisms in premature newborns have the potential to prevent the adverse effects caused by asynchronous changes of pressure in the rib cage...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28645790/vitamin-e-deficiency-during-embryogenesis-in-zebrafish-causes-lasting-metabolic-and-cognitive-impairments-despite-refeeding-adequate-diets
#11
Melissa McDougall, Jaewoo Choi, Lisa Truong, Robert Tanguay, Maret G Traber
Vitamin E (α-tocopherol; VitE) is a lipophilic antioxidant required for normal embryonic development in vertebrates, but the long-term effects of embryonic VitE deficiency, and whether they are ameliorated by feeding VitE-adequate diets, remain unknown. We addressed these questions using a zebrafish (Danio rerio) model of developmental VitE deficiency followed by dietary remediation. Adult zebrafish maintained on VitE-deficient (E-) or sufficient (E+) diets were spawned to obtained E- and E+ embryos, respectively, which we evaluated up to 12 days post-fertilization (dpf)...
June 20, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28640584/spectroscopic-evidence-for-a-h-bond-network-at-y356-located-at-the-subunit-interface-of-active-e-coli-ribonucleotide-reductase
#12
Thomas U Nick, Kanchana R Ravichandran, JoAnne Stubbe, Müge Kasanmascheff, Marina Bennati
The reaction catalyzed by E. coli ribonucleotide reductase (RNR) composed of α and β subunits that form an active α2β2 complex is a paradigm for proton-coupled electron transfer (PCET) processes in biological transformations. β2 contains the diferric tyrosyl radical (Y122·) cofactor that initiates radical transfer (RT) over 35 Å via a specific pathway of amino acids (Y122· ⇆ [W48] ⇆ Y356 in β2 to Y731 ⇆ Y730 ⇆ C439 in α2). Experimental evidence exists for colinear and orthogonal PCET in α2 and β2, respectively...
July 7, 2017: Biochemistry
https://www.readbyqxmd.com/read/28606547/self-assembled-supermolecular-hydrogel-based-on-hydroxyethyl-cellulose-formation-in-vitro-release-and-bacteriostasis-application
#13
Nan Sun, Ting Wang, Xiufeng Yan
Self-assembly of cellulose-based hydrogel is a new supermolecular architecture with potential for biomedical applications. In this study, a novel cellulose-based, supermolecular self-assembled hydrogel (gel-(β)CDP-HEC) was studied, which was based on the host-guest interaction between hydrophobic lauryl side chains grafting on hydroxyethyl cellulose (HECC12) and the cavities in poly(β-cyclodextrin) (β-CDP). The critical concentrations of HECC12 and β-CDP should be both fixed at 30mgmL(-1) by the results of dynamic viscosity, rheological property and swelling ratio...
September 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28603464/reliability-and-validity-of-the-computerized-dynamic-posturography-sensory-organization-test-in-people-with-multiple-sclerosis
#14
Jeffrey R Hebert, Mark M Manago
BACKGROUND: People with multiple sclerosis (MS) frequently have impaired postural control (balance). Psychometric properties of clinical tests of balance for individuals with MS, including the computerized dynamic posturography sensory organization test (CDP-SOT), are poorly understood. This study aimed to determine the reliability and discriminant validity of the CDP-SOT in people with MS. METHODS: The CDP-SOT was performed on 30 participants with MS. A 2-week-interval, repeated-measures (sessions 1 and 2) design was implemented to investigate test-retest reliability of the CDP-SOT and the ability of the CDP-SOT to discriminate between participants with lower versus higher disability...
May 2017: International Journal of MS Care
https://www.readbyqxmd.com/read/28596780/katanin-effects-on-dynamics-of-cortical-microtubules-and-mitotic-arrays-in-arabidopsis-thaliana-revealed-by-advanced-live-cell-imaging
#15
George Komis, Ivan Luptovčiak, Miroslav Ovečka, Despina Samakovli, Olga Šamajová, Jozef Šamaj
Katanin is the only microtubule severing protein identified in plants so far. Previous studies have documented its role in regulating cortical microtubule organization during cell growth and morphogenesis. Although, some cell division defects are reported in KATANIN mutants, it is not clear whether or how katanin activity may affect microtubule dynamics in interphase cells, as well as the progression of mitosis and cytokinesis and the orientation of cell division plane (CDP). For this reason, we characterized microtubule organization and dynamics in growing and dividing cotyledon cells of Arabidopsis ktn1-2 mutant devoid of KATANIN 1 activity...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28595652/effect-of-cochlear-implant-surgery-on-vestibular-function-meta-analysis-study
#16
REVIEW
Iman Ibrahim, Sabrina Daniela da Silva, Bernard Segal, Anthony Zeitouni
IMPORTANCE: Vestibular disorders have been reported following cochlear implant (CI) surgery, but the literature shows a wide discrepancy in the reported clinical impact. The aim of this meta-analysis is to quantify the effect of CI before and after surgery on the outcomes of vestibular tests, postural stability, and subjective perception of dizziness. OBJECTIVE: To evaluate the effects of CI surgery on vestibular function in adult patients (≥18 years) with sensorineural hearing loss who underwent unilateral or bilateral implantation...
June 8, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28584488/moisture-sorption-desorption-characteristics-and-the-corresponding-thermodynamic-properties-of-carvedilol-phosphate
#17
Ravikiran Allada, Arthanareeswari Maruthapillai, Kamaraj Palanisamy, Praveen Chappa
AIMS: Carvedilol phosphate (CDP) is a nonselective beta-blocker used for the treatment of heart failures and hypertension. In this work, moisture sorption-desorption characteristics and thermodynamic properties of CDP have been investigated. MATERIALS AND METHODS: The isotherms were determined using dynamic vapor sorption analyzer at different humidity conditions (0%-90% relative humidity) and three pharmaceutically relevant temperatures (20°C, 30°C, and 40°C)...
January 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/28556664/benchmarking-micropollutant-removal-by-activated-carbon-and-porous-%C3%AE-cyclodextrin-polymers-under-environmentally-relevant-scenarios
#18
Yuhan Ling, Max J Klemes, Leilei Xiao, Alaaeddin Alsbaiee, William R Dichtel, Damian E Helbling
The cost-effective and energy-efficient removal of organic micropollutants (MPs) from water and wastewater is challenging. The objective of this research was to evaluate the performance of porous β-cyclodextrin polymers (P-CDP) as adsorbents of MPs in aquatic matrixes. Adsorption kinetics and MP removal were measured in batch and flow-through experiments for a mixture of 83 MPs at environmentally relevant concentrations (1 μg L(-1)) and across gradients of pH, ionic strength, and natural organic matter (NOM) concentrations...
June 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28545875/regional-volume-characteristics-of-the-preterm-infant-receiving-first-intention-continuous-positive-airway-pressure
#19
Risha Bhatia, Peter G Davis, David G Tingay
OBJECTIVE: To determine whether applying nasal continuous positive airway pressure (CPAP) using systematic changes in continuous distending pressure (CDP) results in a quasi-static pressure-volume relationship in very preterm infants receiving first intention CPAP in the first 12-18 hours of life. STUDY DESIGN: Twenty infants at <32 weeks' gestation with mild respiratory distress syndrome (RDS) managed exclusively with nasal CPAP had CDP increased from 5 to 8 to 10 cmH2O, and then decreased to 8 cmH2O and returned to baseline CDP...
May 22, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28521701/unexpected-effects-of-acetylcholine-precursors-on-pilocarpine-seizure-induced-neuronal-death
#20
Minwoo Lee, Bo Young Choi, Sang Won Suh
Choline alfoscerate (α-GPC) and Cytidine 5'-diphosphocholine (CDP-Choline) are both acetylcholine precursors and are considered to act as pro-cholinergic nootropic agents. Acetylcholine precursors have also recently found frequent use in the neurology clinic. Stroke and many types of dementia have been shown to respond favorably after treatment with these agents, not only in terms of cognitive dysfunction but also behavioral and psychological symptoms. The primary mechanisms of Acetylcholine precursors are the following: 1) Acetylcholine precursors themselves are used in the biosynthesis of acetylcholine and 2) byproducts like glycerophosphate have protective functions for neuronal phospholipids...
May 18, 2017: Current Neuropharmacology
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