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https://www.readbyqxmd.com/read/29458104/a-new-l-glutaminase-from-streptomyces-pratensis-nrc-10-gene-identification-enzyme-purification-and-characterization
#1
Sanaa E Tork, Magda M Aly, Omar Elsemin
In the current study, the purified l-glutaminase from Streptomyces pratensis NRC10 (GenBank number KC857622) was characterized. Its molecular weight was estimated to be 46 kDa and isoelectric point 7.4. Its Vmax was calculated to be 2.19 U/mg/min, while Km was 0.175 mM. The optimum pH and temperature were 9 and 45 °C, respectively. It was thermostable at 45 °C but thermally inactivated at 60 °C after 50 min. Moreover, its enzymatic activity was enhanced by K+ ions and inhibited by Mg2+ , Cu2+ , Ag+ , Hg2+ , Ni2+ , Fe2+ , Cr2 , Na+ , Ca2+ , and EDTA...
February 16, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29458094/a-conserved-interferon-regulation-factor-1-irf-1-from-pacific-oyster-crassostrea-gigas-functioned-as-an-activator-of-ifn-pathway
#2
Mengmeng Lu, Chuanyan Yang, Meijia Li, Qilin Yi, Guangxia Lu, Yichen Wu, Chen Qu, Lingling Wang, Linsheng Song
Interferon regulatory factors (IRFs), a family of transcription factors with a novel helix-turn-helix DNA-binding motif, play important roles in regulating the expression of interferons (IFNs) and IFN-stimulated genes. In the present study, an interferon regulation factor 1 was identified from oyster Crassostrea gigas (designated CgIRF-1), and its immune function was characterized to understand the regulatory mechanism of interferon system against viral infection in invertebrates. The open reading frame (ORF) of CgIRF-1 was 993 bp, encoding a polypeptide of 330 amino acids with a typical IRF domain (also known as DNA-binding domain)...
February 16, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29457863/the-b-type-natriuretic-peptide-is-a-useful-biomarker-for-the-estimation-of-volume-overload-in-children-with-hypertension-in-children-on-peritoneal-dialysis
#3
Joo Hoon Lee, Young Seo Park
AIM: To evaluate the usefulness of serum B-type natriuretic peptide (BNP) as a biomarker of fluid retention in hypertensive children on peritoneal dialysis (PD). METHODS: We included hypertensive children on PD. We reviewed the changes (∆) of body weight (BWt), blood pressure (BP) and serum BNP at initial and follow-up periods. We presented data as mean±standard deviation (median, minimum - maximum). Wilcoxon signed-rank test was used to evaluate the changes in BWt, BP, and BNP...
February 19, 2018: Nephrology
https://www.readbyqxmd.com/read/29457530/a-new-insight-into-the-classification-of-dusky-thrush-complex-bearings-on-the-phylogenetic-relationships-within-the-turdidae
#4
Yuanqiu Dong, Bo Li, Lizhi Zhou
Dusky thrush complex comprises of two sister species breeding in SC Siberia, which is the member of thrush Turdus from Turdidae. The phylogenetic resolution of Dusky thrush complex remains controversial, and a detailed research is still necessary. In this research, we determined the complete mtDNAs of both species, and estimated phylogenetic trees based on the mtDNA alignment of these and 21 other Turdidae species, to clarify the taxa status of the Dusky thrush complex. The squenced lengths of these three mitochondrial genomes were 16,737, 16,788 and 16,750 bp...
February 18, 2018: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/29457514/relapse-of-bullous-pemphigoid-an-update-on-this-stubborn-clinical-problem
#5
Yiman Wang, Xuming Mao, Yanhong Wang, Yueping Zeng, Yidi Liu, Hongzhong Jin, Li Li
Bullous Pemphigoid (BP) is a chronic autoimmune blistering disorder that has a predilection for the elderly. It is characterized by a poor prognosis due to its high mortality rate and the tendency to relapse. The relapse rate of BP ranges from 27.87% to 53% after disease remission, while the majority of relapses occur early (within 6 months) during remission. Clinical interventions aimed to prevent early relapses could reduce potential complications from first-line treatment and make follow-up care easier for clinicians in practice, thus improving the prognosis of BP and the quality of patients' lives...
February 19, 2018: Annals of Medicine
https://www.readbyqxmd.com/read/29457351/24-hour-aortic-blood-pressure-variability-showed-a-stronger-association-with-carotid-damage-than-24-hour-brachial-blood-pressure-variability-the-safar-study
#6
Shikai Yu, Chen Chi, Athanase D Protogerou, Michel E Safar, Jacques Blacher, Antonis A Argyris, Efthimia G Nasothimiou, Petros P Sfikakis, Theodore G Papaioannou, Henry Xu, Yi Zhang, Yawei Xu
We aim to compare 24-hour aortic blood pressure variability (BPV) with brachial BPV in relation to carotid damage as estimated by carotid intima-media thickness (CIMT) and cross-sectional area (CCSA). Four hundred and forty five individuals received brachial and aortic 24-hour ambulatory BP monitoring with a validated device (Mobil-O-Graph). Systolic BPV was estimated by average real variability (ARV) and time-weighted standard deviation (wSD). In multiple logistic regression analysis, CIMT > 900 μm was significantly and independently associated with aortic ARV (OR = 1...
February 19, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29457339/subjective-sleep-quality-blood-pressure-and-hypertension-a-meta-analysis
#7
REVIEW
Kenneth Lo, Brigitte Woo, Martin Wong, Wilson Tam
Sleep quality is an important aspect of sleep, but no meta-analysis has elucidated its relationship with blood pressure (BP) and hypertension. A meta-analysis was conducted in October 2016 using multiple databases, including Embase and Medline. Studies that assessed subjective sleep quality and BP or hypertension were included. Upon full-text evaluation, 29 articles from 45 041 patients were selected, of which 22 articles were included in the meta-analysis and seven were presented narratively. Poor sleep quality was significantly associated with a greater likelihood of hypertension (odds ratio, 1...
February 19, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29456896/factors-associated-with-elevated-blood-pressure-or-hypertension-in-afro-caribbean-youth-a-cross-sectional-study
#8
Trevor S Ferguson, Novie O M Younger-Coleman, Marshall K Tulloch-Reid, Nadia R Bennett, Amanda E Rousseau, Jennifer M Knight-Madden, Maureen E Samms-Vaughan, Deanna E Ashley, Rainford J Wilks
Background: Although several studies have identified risk factors for high blood pressure (BP), data from Afro-Caribbean populations are limited. Additionally, less is known about how putative risk factors operate in young adults and how social factors influence the risk of high BP. In this study, we estimated the relative risk for elevated BP or hypertension (EBP/HTN), defined as BP ≥ 120/80 mmHg, among young adults with putative cardiovascular disease (CVD) risk factors in Jamaica and evaluated whether relative risks differed by sex...
2018: PeerJ
https://www.readbyqxmd.com/read/29456891/frequency-and-developmental-timing-of-linear-enamel-hypoplasia-defects-in-early-archaic-texan-hunter-gatherers
#9
J Colette Berbesque, Kara C Hoover
Digital photographs taken under controlled conditions were used to examine the incidence of linear enamel hypoplasia defects (LEHs) in burials from the Buckeye Knoll archaeological site (41VT98 Victoria county, Texas), which spans the Early to Late Archaic Period (ca. 2,500-6,500 BP uncorrected radiocarbon). The majority (68 of 74 burials) date to the Texas Early Archaic, including one extremely early burial dated to 8,500 BP. The photogrammetric data collection method also results in an archive for Buckeye Knoll, a significant rare Archaic period collection that has been repatriated and reinterred...
2018: PeerJ
https://www.readbyqxmd.com/read/29456869/cognitive-fluctuations-in-parkinson-s-disease-dementia-blood-pressure-lability-as-an-underlying-mechanism
#10
David E Riley, Alberto J Espay
Background: Cognitive fluctuations refer to alterations in cognition, attention, or arousal occurring over minutes to hours, most commonly in patients with dementias associated with advanced Lewy body pathology. Their pathophysiologic underpinning remains undetermined. Case presentation: We documented serial blood pressure (BP) measurements in an 86-year-old man with Parkinson's disease dementia experiencing cognitive fluctuations during an office visit. This patient's associated dysautonomia included labile BP with orthostatic hypotension and nocturnal hypertension...
2018: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/29456867/heterologous-and-endogenous-u6-snrna-promoters-enable-crispr-cas9-mediated-genome-editing-in-aspergillus-niger
#11
Xiaomei Zheng, Ping Zheng, Jibin Sun, Zhang Kun, Yanhe Ma
Background: U6 promoters have been used for single guide RNA (sgRNA) transcription in the clustered regularly interspaced short palindromic repeats/CRISPR-associated protein (CRISPR/Cas9) genome editing system. However, no available U6 promoters have been identified in Aspergillus niger, which is an important industrial platform for organic acid and protein production. Two CRISPR/Cas9 systems established in A. niger have recourse to the RNA polymerase II promoter or in vitro transcription for sgRNA synthesis, but these approaches generally increase cloning efforts and genetic manipulation...
2018: Fungal Biology and Biotechnology
https://www.readbyqxmd.com/read/29456690/protective-effects-of-recombinant-human-brain-natriuretic-peptide-in-perioperative-period-during-open-heart-surgery
#12
Yunbin Xu, Yong Li, Weiguo Bao, Shi Qiu
The aim of the present study was to evaluate the protective effects and safety aspects of recombinant human brain natriuretic peptide (rhBNP) on cardiac functions of patients undergoing open-heart surgery during perioperative period. In total, 150 patients undergoing open heart surgery in the Second Hospital of Shandong Universty from August 2015 to July 2016 were randomly divided into control group and observation group each with 75 cases. Patients in control group were treated by routine rehabilitation while patients in the observation group were treated by both the routine rehabilitation and rhBNP...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456488/exploring-the-complexity-of-cortical-development-using-single-cell-transcriptomics
#13
REVIEW
Hyobin Jeong, Vijay K Tiwari
The developing neocortex in the mammalian brain is composed of multiple cell types including apical progenitors (AP), basal progenitors (BP), and neurons that populate three different layers, the ventricular zone (VZ), the subventricular zone (SVZ), and the cortical plate (CP). Despite recent advances, the diversity of the existing cell populations including those which are differentiating and mature, their biogenesis and the underlying gene regulatory mechanisms remain poorly known. Recent studies have taken advantage of the rapidly emerging single-cell technologies to decode the heterogeneity of cell populations at the transcriptome level during cortical development and their molecular details...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29456146/a-comprehensive-and-dated-phylogenomic-analysis-of-butterflies
#14
Marianne Espeland, Jesse Breinholt, Keith R Willmott, Andrew D Warren, Roger Vila, Emmanuel F A Toussaint, Sarah C Maunsell, Kwaku Aduse-Poku, Gerard Talavera, Rod Eastwood, Marta A Jarzyna, Robert Guralnick, David J Lohman, Naomi E Pierce, Akito Y Kawahara
Butterflies (Papilionoidea), with over 18,000 described species [1], have captivated naturalists and scientists for centuries. They play a central role in the study of speciation, community ecology, biogeography, climate change, and plant-insect interactions and include many model organisms and pest species [2, 3]. However, a robust higher-level phylogenetic framework is lacking. To fill this gap, we inferred a dated phylogeny by analyzing the first phylogenomic dataset, including 352 loci (> 150,000 bp) from 207 species representing 98% of tribes, a 35-fold increase in gene sampling and 3-fold increase in taxon sampling over previous studies [4]...
February 14, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29455858/a-large-scale-multi-ancestry-genome-wide-study-accounting-for-smoking-behavior-identifies-multiple-significant-loci-for-blood-pressure
#15
Yun J Sung, Thomas W Winkler, Lisa de Las Fuentes, Amy R Bentley, Michael R Brown, Aldi T Kraja, Karen Schwander, Ioanna Ntalla, Xiuqing Guo, Nora Franceschini, Yingchang Lu, Ching-Yu Cheng, Xueling Sim, Dina Vojinovic, Jonathan Marten, Solomon K Musani, Changwei Li, Mary F Feitosa, Tuomas O Kilpeläinen, Melissa A Richard, Raymond Noordam, Stella Aslibekyan, Hugues Aschard, Traci M Bartz, Rajkumar Dorajoo, Yongmei Liu, Alisa K Manning, Tuomo Rankinen, Albert Vernon Smith, Salman M Tajuddin, Bamidele O Tayo, Helen R Warren, Wei Zhao, Yanhua Zhou, Nana Matoba, Tamar Sofer, Maris Alver, Marzyeh Amini, Mathilde Boissel, Jin Fang Chai, Xu Chen, Jasmin Divers, Ilaria Gandin, Chuan Gao, Franco Giulianini, Anuj Goel, Sarah E Harris, Fernando Pires Hartwig, Andrea R V R Horimoto, Fang-Chi Hsu, Anne U Jackson, Mika Kähönen, Anuradhani Kasturiratne, Brigitte Kühnel, Karin Leander, Wen-Jane Lee, Keng-Hung Lin, Jian 'an Luan, Colin A McKenzie, He Meian, Christopher P Nelson, Rainer Rauramaa, Nicole Schupf, Robert A Scott, Wayne H H Sheu, Alena Stančáková, Fumihiko Takeuchi, Peter J van der Most, Tibor V Varga, Heming Wang, Yajuan Wang, Erin B Ware, Stefan Weiss, Wanqing Wen, Lisa R Yanek, Weihua Zhang, Jing Hua Zhao, Saima Afaq, Tamuno Alfred, Najaf Amin, Dan Arking, Tin Aung, R Graham Barr, Lawrence F Bielak, Eric Boerwinkle, Erwin P Bottinger, Peter S Braund, Jennifer A Brody, Ulrich Broeckel, Claudia P Cabrera, Brian Cade, Yu Caizheng, Archie Campbell, Mickaël Canouil, Aravinda Chakravarti, Ganesh Chauhan, Kaare Christensen, Massimiliano Cocca, Francis S Collins, John M Connell, Renée de Mutsert, H Janaka de Silva, Stephanie Debette, Marcus Dörr, Qing Duan, Charles B Eaton, Georg Ehret, Evangelos Evangelou, Jessica D Faul, Virginia A Fisher, Nita G Forouhi, Oscar H Franco, Yechiel Friedlander, He Gao, Bruna Gigante, Misa Graff, C Charles Gu, Dongfeng Gu, Preeti Gupta, Saskia P Hagenaars, Tamara B Harris, Jiang He, Sami Heikkinen, Chew-Kiat Heng, Makoto Hirata, Albert Hofman, Barbara V Howard, Steven Hunt, Marguerite R Irvin, Yucheng Jia, Roby Joehanes, Anne E Justice, Tomohiro Katsuya, Joel Kaufman, Nicola D Kerrison, Chiea Chuen Khor, Woon-Puay Koh, Heikki A Koistinen, Pirjo Komulainen, Charles Kooperberg, Jose E Krieger, Michiaki Kubo, Johanna Kuusisto, Carl D Langefeld, Claudia Langenberg, Lenore J Launer, Benjamin Lehne, Cora E Lewis, Yize Li, Sing Hui Lim, Shiow Lin, Ching-Ti Liu, Jianjun Liu, Jingmin Liu, Kiang Liu, Yeheng Liu, Marie Loh, Kurt K Lohman, Jirong Long, Tin Louie, Reedik Mägi, Anubha Mahajan, Thomas Meitinger, Andres Metspalu, Lili Milani, Yukihide Momozawa, Andrew P Morris, Thomas H Mosley, Peter Munson, Alison D Murray, Mike A Nalls, Ubaydah Nasri, Jill M Norris, Kari North, Adesola Ogunniyi, Sandosh Padmanabhan, Walter R Palmas, Nicholette D Palmer, James S Pankow, Nancy L Pedersen, Annette Peters, Patricia A Peyser, Ozren Polasek, Olli T Raitakari, Frida Renström, Treva K Rice, Paul M Ridker, Antonietta Robino, Jennifer G Robinson, Lynda M Rose, Igor Rudan, Charumathi Sabanayagam, Babatunde L Salako, Kevin Sandow, Carsten O Schmidt, Pamela J Schreiner, William R Scott, Sudha Seshadri, Peter Sever, Colleen M Sitlani, Jennifer A Smith, Harold Snieder, John M Starr, Konstantin Strauch, Hua Tang, Kent D Taylor, Yik Ying Teo, Yih Chung Tham, André G Uitterlinden, Melanie Waldenberger, Lihua Wang, Ya X Wang, Wen Bin Wei, Christine Williams, Gregory Wilson, Mary K Wojczynski, Jie Yao, Jian-Min Yuan, Alan B Zonderman, Diane M Becker, Michael Boehnke, Donald W Bowden, John C Chambers, Yii-Der Ida Chen, Ulf de Faire, Ian J Deary, Tõnu Esko, Martin Farrall, Terrence Forrester, Paul W Franks, Barry I Freedman, Philippe Froguel, Paolo Gasparini, Christian Gieger, Bernardo Lessa Horta, Yi-Jen Hung, Jost B Jonas, Norihiro Kato, Jaspal S Kooner, Markku Laakso, Terho Lehtimäki, Kae-Woei Liang, Patrik K E Magnusson, Anne B Newman, Albertine J Oldehinkel, Alexandre C Pereira, Susan Redline, Rainer Rettig, Nilesh J Samani, James Scott, Xiao-Ou Shu, Pim van der Harst, Lynne E Wagenknecht, Nicholas J Wareham, Hugh Watkins, David R Weir, Ananda R Wickremasinghe, Tangchun Wu, Wei Zheng, Yoichiro Kamatani, Cathy C Laurie, Claude Bouchard, Richard S Cooper, Michele K Evans, Vilmundur Gudnason, Sharon L R Kardia, Stephen B Kritchevsky, Daniel Levy, Jeff R O'Connell, Bruce M Psaty, Rob M van Dam, Mario Sims, Donna K Arnett, Dennis O Mook-Kanamori, Tanika N Kelly, Ervin R Fox, Caroline Hayward, Myriam Fornage, Charles N Rotimi, Michael A Province, Cornelia M van Duijn, E Shyong Tai, Tien Yin Wong, Ruth J F Loos, Alex P Reiner, Jerome I Rotter, Xiaofeng Zhu, Laura J Bierut, W James Gauderman, Mark J Caulfield, Paul Elliott, Kenneth Rice, Patricia B Munroe, Alanna C Morrison, L Adrienne Cupples, Dabeeru C Rao, Daniel I Chasman
Genome-wide association analysis advanced understanding of blood pressure (BP), a major risk factor for vascular conditions such as coronary heart disease and stroke. Accounting for smoking behavior may help identify BP loci and extend our knowledge of its genetic architecture. We performed genome-wide association meta-analyses of systolic and diastolic BP incorporating gene-smoking interactions in 610,091 individuals. Stage 1 analysis examined ∼18.8 million SNPs and small insertion/deletion variants in 129,913 individuals from four ancestries (European, African, Asian, and Hispanic) with follow-up analysis of promising variants in 480,178 additional individuals from five ancestries...
February 13, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29455795/does-resting-heart-rate-measured-by-the-physician-reflect-the-patient-s-true-resting-heart-rate-white-coat-heart-rate
#16
Benoit Lequeux, Charles Uzan, Michaela B Rehman
OBJECTIVES: In cardiology, resting heart rate (HR) and blood pressure (BP) are key elements and are used to adapt treatment. However HR measured in consultation may not reflect true resting HR. We hypothesize that there may be a "white-coat" effect like with BP and that there may be an association between HR variations and BP variations. METHODS: This prospective, monocentric, observational, pilot study (January-April 2016) included 57 consecutive ambulatory patients at Poitiers University Hospital, France (58% male, mean age 64 years)...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29455324/genetic-diversity-and-phylogenetic-analysis-of-aleutian-mink-disease-virus-isolates-in-north-east-china
#17
Xue Leng, Dongxu Liu, Jianming Li, Kun Shi, Fanli Zeng, Ying Zong, Yi Liu, Zhibo Sun, Shanshan Zhang, Yadong Liu, Rui Du
Aleutian mink disease is the most important disease in the mink-farming industry worldwide. So far, few large-scale molecular epidemiological studies of AMDV, based on the NS1 and VP2 genes, have been conducted in China. Here, eight new Chinese isolates of AMDV from three provinces in north-east China were analyzed to clarify the molecular epidemiology of AMDV. The seroprevalence of AMDV in north-east China was 41.8% according to counterimmuno-electrophoresis. Genetic variation analysis of the eight isolates showed significant non-synonymous substitutions in the NS1 and VP2 genes, especially in the NS1 gene...
February 17, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29455315/mitogenomes-of-two-neotropical-bird-species-and-the-multiple-independent-origin-of-mitochondrial-gene-orders-in-passeriformes
#18
Renato Caparroz, Amanda V Rocha, Gustavo S Cabanne, Pablo Tubaro, Alexandre Aleixo, Emily M Lemmon, Alan R Lemmon
At least four mitogenome arrangements occur in Passeriformes and differences among them are derived from an initial tandem duplication involving a segment containing the control region (CR), followed by loss or reduction of some parts of this segment. However, it is still unclear how often duplication events have occurred in this bird order. In this study, the mitogenomes from two species of Neotropical passerines (Sicalis olivascens and Lepidocolaptes angustirostris) with different gene arrangements were first determined...
February 17, 2018: Molecular Biology Reports
https://www.readbyqxmd.com/read/29455212/fetal-risks-and-maternal-renal-complications-in-pregnancy-with-preexisting-chronic-glomerulonephritis
#19
Yuehong Li, Wei Wang, Yujuan Wang, Qi Chen
BACKGROUND Analysis the maternal and fetal risk predictors in pregnancy in conjunction with chronic glomerulonephritis (CGN) patients are helpful to understand the influence of kidney diseases on pregnancy and the effects of pregnancy on kidney diseases. The aim of this study was to determine the predictors of adverse maternal and fetal outcomes in CGN patients. MATERIAL AND METHODS Maternal and fetal outcomes in 64 pregnancies of CGN patients were retrospectively analyzed. We randomly selected 100 low-risk-pregnancy women without chronic kidney disease (CKD) at the same time as the control group...
February 18, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29455192/cloning-and-expression-analysis-of-cdnas-encoding-adp-glucose-pyrophosphorylase-large-and-small-subunits-from-hulless-barley-hordeum-vulgare-l-var-nudum
#20
Dongmei Li, Zhimin Yang, Xinchun Liu, Zhen Song, Zongyun Feng, Yang He
As an important plateau cereal crop, hulless barley is the principal food for the Tibetan people in China. ADP-glucose pyrophosphorylase (AGPase) is considered as the key enzyme for starch biosynthesis in plants. In this study, cDNAs encoding the small subunit (SSU I) and large subunit (LSU I) of AGPase were isolated from hulless barley. The results showed that SSU I and LSU I were 1438 and 1786 bp in length with a complete open reading frame (ORF) of 1419 and 1572 bp. The ORF-encoded polypeptides of 472 and 523 amino acids were having calculated molecular masses of 52...
February 19, 2018: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
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