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https://www.readbyqxmd.com/read/28105534/construction-of-a-novel-lipolytic-fusion-biocatalyst-gdest-lip-for-industrial-application
#1
Renata Gudiukaite, Mikas Sadauskas, Audrius Gegeckas, Vilius Malunavicius, Donaldas Citavicius
The gene encoding esterase (GDEst-95) from Geobacillus sp. 95 was cloned and sequenced. The resulting open reading frame of 1497 nucleotides encoded a protein with calculated molecular weight of 54.7 kDa, which was classified as a carboxylesterase with an identity of 93-97% to carboxylesterases from Geobacillus bacteria. This esterase can be grouped into family VII of bacterial lipolytic enzymes, was active at broad pH (7-12) and temperature (5-85 °C) range and displayed maximum activity toward short acyl chain p-nitrophenyl (p-NP) esters...
January 19, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28103780/a-random-forest-induced-distance-based-measure-of-physiological-dysregulation
#2
Ghalib Ayodeji Bello, Gerard Dumancas
Aging involves gradual, multisystemic physiological dysregulation and over time, this degenerative process increases an individual's risk for multiple age-related comorbidities. The ability to quantify age-related physiological dysregulation can provide key insights into the biological mechanisms underlying the aging process and facilitate the development of clinical interventions. Recent studies have introduced and validated a measure of physiological dysregulation based on statistical distance. This measure quantifies the extent of physiological dysregulation in an individual by measuring how much the individual's biomarker profile deviates from the expected average...
January 17, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28101806/purification-and-characterization-of-glutamate-decarboxylase-from-enterococcus-raffinosus-tccc11660
#3
Chuanyou Chang, Jun Zhang, Shenxi Ma, Lin Wang, Depei Wang, Jian Zhang, Qiang Gao
Glutamate decarboxylase (GAD) is the sole enzyme that synthesizes γ-aminobutyric acid through the irreversible decarboxylation of L-glutamate. In this study, the purification and characterization of an unreported GAD from a novel strain of Enterococcus raffinosus TCCC11660 were investigated. The native GAD from E. raffinosus TCCC11660 was purified 32.3-fold with a recovery rate of 8.3%, using ultrafiltration and ammonium sulfate precipitation, followed by ion-exchange and size-exclusion chromatography. The apparent molecular weight of purified GAD, as determined by SDS-PAGE and size-exclusion chromatography was 55 and 110 kDa, respectively, suggesting that GAD exists as a dimer of identical subunits in solution...
January 18, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28099022/molecular-weight-dependence-of-interdiffusion-and-adhesion-of-polymers-at-short-contact-times
#4
Robert Gurney, Anastase Henry, Regis Schach, Anke Lindner, Costantino Creton
The self-adhesion and subsequent debonding of thin layers of three linear and monodisperse random copolymers of styrene-butadiene (SBR) with molecular weights varying between 30 and 75 times the average molecular weight between entanglements Me was investigated using a carefully controlled tack adhesion testing device in conjunction with a fast camera setup over a range of contact times tc (10 ms to 10 s) much shorter in comparison to the terminal relaxation times of the polymers. The evolution of the stress-strain curves and debonding mechanisms with increasing contact time was examined, and the work required to debond the layers was found to be strongly dependent on molecular weight at long contact times, but not at short contact times...
January 18, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28097387/all-dual-mobility-cups-are-not-the-same
#5
Thierry Aslanian
PURPOSE: Although the natural history of dual mobility has been exclusively borne for 20 years by a single company (due to industrial ownership), the concept has undeniably been very widely popularised with nearly 40 cups on the French market which should be regarded as a weight bearing surface, both broadly and in their own right. However, within the same original idea, these implants are not all identical (design, material, fixation ect.).The aim of this work is to propose a classification of different dual mobility cups by distinguishing between thegeneral characteristics of a conventional cup and those particular to this type of implant...
January 18, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28095195/deep-learning-with-dynamic-spiking-neurons-and-fixed-feedback-weights
#6
Arash Samadi, Timothy P Lillicrap, Douglas B Tweed
Recent work in computer science has shown the power of deep learning driven by the backpropagation algorithm in networks of artificial neurons. But real neurons in the brain are different from most of these artificial ones in at least three crucial ways: they emit spikes rather than graded outputs, their inputs and outputs are related dynamically rather than by piecewise-smooth functions, and they have no known way to coordinate arrays of synapses in separate forward and feedback pathways so that they change simultaneously and identically, as they do in backpropagation...
January 17, 2017: Neural Computation
https://www.readbyqxmd.com/read/28093063/whole-genome-sequence-based-genomic-prediction-in-laying-chickens-with-different-genomic-relationship-matrices-to-account-for-genetic-architecture
#7
Guiyan Ni, David Cavero, Anna Fangmann, Malena Erbe, Henner Simianer
BACKGROUND: With the availability of next-generation sequencing technologies, genomic prediction based on whole-genome sequencing (WGS) data is now feasible in animal breeding schemes and was expected to lead to higher predictive ability, since such data may contain all genomic variants including causal mutations. Our objective was to compare prediction ability with high-density (HD) array data and WGS data in a commercial brown layer line with genomic best linear unbiased prediction (GBLUP) models using various approaches to weight single nucleotide polymorphisms (SNPs)...
January 16, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28092272/material-dependent-implant-artifact-reduction-using-semac-vat-and-mavric-a-prospective-mri-phantom-study
#8
Lukas Filli, Lukas Jud, Roger Luechinger, Daniel Nanz, Gustav Andreisek, Val M Runge, Sebastian Kozerke, Nadja A Farshad-Amacker
OBJECTIVE: The aim of this study was to compare the degree of artifact reduction in magnetic resonance imaging achieved with slice encoding for metal artifact correction (SEMAC) in combination with view angle tilting (VAT) and multiacquisition variable resonance image combination (MAVRIC) for standard contrast weightings and different metallic materials. METHODS: Four identically shaped rods made of the most commonly used prosthetic materials (stainless steel, SS; titanium, Ti; cobalt-chromium-molybdenum, CoCr; and oxidized zirconium, oxZi) were scanned at 3 T...
January 13, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28090351/the-prevalence-and-practice-impact-of-weight-bias-amongst-australian-dietitians
#9
T M Diversi, R Hughes, K J Burke
OBJECTIVES: This study explored weight bias amongst Australian Accredited Practising Dietitians (APDs) and the effect of client weight status on dietetic practice. METHODS: Participants were 201 APDs, recruited using purposive sampling. A self-administered questionnaire, the fat phobia scale (FPS), was completed to assess explicit weight bias. Participants were then randomized to receive either a female within the healthy weight range or female with obesity, accompanied by an identical case study for a condition unrelated to weight...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28087796/prior-military-service-identity-stigma-and-mental-health-among-transgender-older-adults
#10
Charles P Hoy-Ellis, Chengshi Shiu, Kathleen M Sullivan, Hyun-Jun Kim, Allison M Sturges, Karen I Fredriksen-Goldsen
PURPOSE OF THE STUDY: Converging evidence from large community-based samples, Internet studies, and Veterans Health Administration data suggest that transgender adults have high rates of U.S. military service. However, little is known about the role of prior military service in their mental health later in life, particularly in relation to identity stigma. In this article, we examine relationships between prior military service, identity stigma, and mental health among transgender older adults...
February 2017: Gerontologist
https://www.readbyqxmd.com/read/28087795/who-says-i-do-the-changing-context-of-marriage-and-health-and-quality-of-life-for-lgbt-older-adults
#11
Jayn Goldsen, Amanda E B Bryan, Hyun-Jun Kim, Anna Muraco, Sarah Jen, Karen I Fredriksen-Goldsen
PURPOSE OF THE STUDY: Until recently, lesbian, gay, bisexual, and transgender (LGBT) adults were excluded from full participation in civil marriage. The purpose of this study is to examine how legal marriage and relationship status are associated with health-promoting and at-risk factors, health, and quality of life of LGBT adults aged 50 and older. DESIGN AND METHODS: We utilized weighted survey data from Aging with Pride: National Health, Aging, and Sexuality/Gender Study (NHAS) participants who resided in states with legalized same-sex marriage in 2014 (N = 1,821)...
February 2017: Gerontologist
https://www.readbyqxmd.com/read/28087793/race-ethnicity-and-health-related-quality-of-life-among-lgbt-older-adults
#12
Hyun-Jun Kim, Sarah Jen, Karen I Fredriksen-Goldsen
PURPOSE OF THE STUDY: Few existing studies have addressed racial/ethnic differences in the health and quality of life of lesbian, gay, bisexual, and transgender (LGBT) older adults. Guided by the Health Equity Promotion Model, this study examines health-promoting and health risk factors that contribute to racial/ethnic health disparities among LGBT adults aged 50 and older. DESIGN AND METHODS: We utilized weighted survey data from Aging with Pride: National Health, Aging, and Sexuality/Gender Study...
February 2017: Gerontologist
https://www.readbyqxmd.com/read/28079395/diagnostic-performance-of-wrist-magnetic-resonance-mr-arthrography-comparison-of-three-dimensional-isotropic-t1-weighted-fast-spin-echo-mr-arthrography-and-two-dimensional-mr-arthrography
#13
Eunsun Oh, Young Cheol Yoon, Min Jong Park
OBJECTIVES: To compare the diagnostic performance of wrist direct magnetic resonance arthrography (D-MRA) with 2D T1-weighted fast spin-echo (FSE) and 3D isotropic T1-weighted FSE sequences for detecting triangular fibrocartilage (TFC) central perforations and scapholunate ligament (SLL) and lunotriquetral ligament (LTL) tears. METHODS: Twenty-six patients who had undergone preoperative wrist D-MRA with 2D and 3D isotropic T1-weighted FSE sequences and subsequent arthroscopic surgeries were included...
January 12, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28077194/the-response-of-weaned-piglets-to-dietary-valine-and-leucine
#14
F Meyer, C Jansen van Rensburg, R M Gous
Valine (Val) is considered to be the fifth-limiting amino acid in a maize-soyabean meal diet for pigs. Excess leucine (Leu) levels often occur in commercial diets, which may attenuate the effect of Val deficiency because of an increased oxidation of Val. The objective of the present experiment was to determine the effect of increasing concentrations of Leu on the response of young piglets to dietary Val. In all, 75 Large White×Landrace entire male pigs, 44 days of age and with a mean starting weight of 13...
January 12, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28069900/impact-of-donor-and-recipient-adiposity-on-feto-placental-growth-in-adolescent-sheep
#15
Jacqueline M Wallace, John S Milne, Clare L Adam, Raymond P Aitken
The influence of maternal obesity during oocyte development and its putative interaction with nutrient reserves at conception on pregnancy outcome were examined in an adolescent sheep model. Donor ewes were nutritionally managed to achieve contrasting adiposity (control [CD]/obese [ObD]) for 6 weeks prior to superovulation, and inseminated by a non-obese sire. Morulae from 6 CD and 7 ObD were transferred in singleton into adolescent recipients of identical age but differing adiposity, classified as relatively fat or thin, respectively...
January 9, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28068381/impairment-of-excitation-contraction-coupling-in-right-ventricular-hypertrophied-muscle-with-fibrosis-induced-by-pulmonary-artery-banding
#16
Yoichiro Kusakari, Takashi Urashima, Daisuke Shimura, Erika Amemiya, Genki Miyasaka, Shunsuke Yokota, Yoshitaka Fujimoto, Toru Akaike, Takahiro Inoue, Susumu Minamisawa
Interstitial myocardial fibrosis is one of the factors responsible for dysfunction of the heart. However, how interstitial fibrosis affects cardiac function and excitation-contraction coupling (E-C coupling) has not yet been clarified. We developed an animal model of right ventricular (RV) hypertrophy with fibrosis by pulmonary artery (PA) banding in rats. Two, four, and six weeks after the PA-banding operation, the tension and intracellular Ca2+ concentration of RV papillary muscles were simultaneously measured (n = 33)...
2017: PloS One
https://www.readbyqxmd.com/read/28067643/biological-phosphorus-removal-in-anoxic-aerobic-sequencing-batch-reactor-with-starch-as-sole-carbon-source
#17
Dacheng Luo, Linjiang Yuan, Lun Liu, Lu Chai, Xin Wang
In traditional biological phosphorus removal (BPR), phosphorus release in anaerobic stage is the prerequisite of phosphorus excessive uptake in aerobic conditions. Moreover, when low molecular weight of the organic substance such as volatile fatty acids (VFAs) is scarce in bulk liquid or anaerobic condition does not exist, phosphate accumulating organisms (PAOs) have difficulty removing phosphorus. However, in this work, phosphorus removal in two anoxic-aerobic sequencing batch reactors (SBRs) was observed when starch was supplied as a sole carbon source...
January 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28067421/dietary-integration-with-oregano-origanum-vulgare-l-essential-oil-improves-growth-rate-and-oxidative-status-in-outdoor-reared-but-not-indoor-reared-pigs
#18
C Forte, D Ranucci, D Beghelli, R Branciari, G Acuti, L Todini, C Cavallucci, M Trabalza-Marinucci
The effects of a diet supplemented with oregano essential oil on performance, oxidative status, pork quality traits and sensorial properties were evaluated. In two studies, 72 pigs in indoor or outdoor conditions were assigned to either a control diet or an identical diet supplemented with 0.2% oregano essential oil. Pigs reared outdoor showed lower live weight, average daily gain and average gain:feed ratio compared to indoor pigs. The oregano supplementation improved the growth performance of the outdoor- but not the indoor-reared animals...
January 9, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28065456/characterization-and-functional-expression-of-a-rubber-degradation-gene-of-a-nocardia-degrader-from-a-rubber-processing-factory
#19
Dao Viet Linh, Nguyen Lan Huong, Michiro Tabata, Shunsuke Imai, Sou Iijima, Daisuke Kasai, To Kim Anh, Masao Fukuda
A rubber-degrading bacterial consortium named H2DA was obtained from an enrichment culture with natural rubber latex and rubber-processing factory waste in Vietnam. Gel permeation chromatography analysis revealed that only the strain NVL3 degraded synthetic poly(cis-1,4-isoprene) into low-molecular-weight intermediates among the three strains found in the H2DA. The 16S-rRNA gene sequence of NVL3 showed the highest identity with that of Nocardia farcinica DSM 43665(T). NVL3 accumulated aldehyde intermediates from synthetic poly(cis-1,4-isoprene) on a rubber-overlay plate as indicated by Schiff's staining...
January 3, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28064023/identification-and-characterization-of-a-gamma-interferon-inducible-lysosomal-thiol-reductase-homolog-from-guinea-pig-cavia-porcellus-that-exhibits-thiol-reductase-activity-in-vitro
#20
Lei Ma, Fang Cao, Runze Tang, Jiaxin Zhang, Shuangquan Zhang
Gamma-interferon-inducible lysosomal thiol reductase (GILT) is a key enzyme in the antigen processing and presentation pathway whereby it reduces disulfide bonds at an acidic pH. In this study, a homolog of GILT from guinea pigs (designated gpGILT) was identified and characterized using bioinformatic methods and bioactivity assays. The open reading frame of gpGILT is 705bp in length and encodes 234 amino acids, with a putative molecular weight of about 25.85kDa. The structure of gpGILT is similar to those of humans and zebrafish, containing six introns and seven exons...
December 28, 2016: Research in Veterinary Science
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