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https://www.readbyqxmd.com/read/28813664/intestinal-dysbiosis-and-biotin-deprivation-induce-alopecia-through-overgrowth-of-lactobacillus-murinus-in-mice
#1
Atsushi Hayashi, Yohei Mikami, Kentaro Miyamoto, Nobuhiko Kamada, Toshiro Sato, Shinta Mizuno, Makoto Naganuma, Toshiaki Teratani, Ryo Aoki, Shinji Fukuda, Wataru Suda, Masahira Hattori, Masayuki Amagai, Manabu Ohyama, Takanori Kanai
Metabolism by the gut microbiota affects host physiology beyond the gastrointestinal tract. Here, we find that antibiotic-induced dysbiosis, in particular, overgrowth of Lactobacillus murinus (L. murinus), impaired gut metabolic function and led to the development of alopecia. While deprivation of dietary biotin per se did not affect skin physiology, its simultaneous treatment with vancomycin resulted in hair loss in specific pathogen-free (SPF) mice. Vancomycin treatment induced the accumulation of L. murinus in the gut, which consumes residual biotin and depletes available biotin in the gut...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28813438/heritability-estimation-using-a-regularized-regression-approach-herra-applicable-to-continuous-dichotomous-or-age-at-onset-outcome
#2
Malka Gorfine, Sonja I Berndt, Jenny Chang-Claude, Michael Hoffmeister, Loic Le Marchand, John Potter, Martha L Slattery, Nir Keret, Ulrike Peters, Li Hsu
The popular Genome-wide Complex Trait Analysis (GCTA) software uses the random-effects models for estimating the narrow-sense heritability based on GWAS data of unrelated individuals without knowing and identifying the causal loci. Many methods have since extended this approach to various situations. However, since the proportion of causal loci among the variants is typically very small and GCTA uses all variants to calculate the similarities among individuals, the estimation of heritability may be unstable, resulting in a large variance of the estimates...
2017: PloS One
https://www.readbyqxmd.com/read/28812319/poorly-differentiated-chordoma-with-loss-of-smarcb1-ini1-expression-in-pediatric-patients-a-report-of-two-cases-and-review-of-the-literature
#3
Yoon Jin Cha, Chang-Ki Hong, Dong-Seok Kim, Seung-Koo Lee, Hyeon Jin Park, Se Hoon Kim
Identification of loss of SMARCB1/INI1 expression in poorly differentiated (PD) chordoma in pediatric patients suggests that PD chordoma is an entity molecularly distinct from conventional chordoma or atypical teratoid/rhabdoid tumor, which is also characterized by loss of SMARCB1/INI1 expression by inactivating mutation of the SMARCB1/INI gene. So far, around 20 cases of pediatric PD chordoma with loss of SMARCB1/INI1 expression have been reported. Here, we report two cases of pediatric PD chordoma with loss of SMARCB1/INI1 expression, which is very rare among the pediatric chordoma types...
August 15, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28812292/effect-of-low-selenium-high-fat-diet-on-pig-peripheral-blood-lymphocytes-perspectives-from-selenoproteins-heat-shock-proteins-and-cytokines
#4
Tianqi Liu, Tianshu Yang, Tingru Pan, Ci Liu, Shu Li
The aim of the present study was to clarify the effect of low selenium (Se)/high fat on the mRNA expression of selenoproteins, heat shock proteins (HSPs) and cytokines in pig peripheral blood lymphocytes. Forty crossbred boar piglets with healthy lean body weights of 10 kg were randomly divided into four treatment groups (group C, group L-Se, group H-fat, and group L-Se-H-fat) (n = 10/group) and fed with the corresponding diet for 16 weeks. The pig peripheral blood lymphocytes were extracted, and the mRNA expression of selenoproteins, HSPs, and cytokines was measured...
August 15, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28812245/association-of-elements-with-schizophrenia-and-intervention-of-selenium-supplements
#5
Zhe Li, Yumei Liu, Xia Li, Wen Ju, Guanrui Wu, Xiaomei Yang, Xiaofeng Fu, Xibao Gao
The purpose of this study is to explore more trace elements (zinc, potassium, copper, iron, boron, manganese, selenium, chromium and cadmium elements) in addition to calcium, magnesium, lead and arsenic in the sera of patients with schizophrenia and the general population in China and to determine the effect of selenium on schizophrenia patients. Participants were collected from the Pingyin County Mental Health Hospital and Pingyin County. A t test was used to analyse the differences between schizophrenia patients and healthy subjects, and element content differences in gender...
August 15, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28812169/bond-strength-of-etch-and-rinse-and-self-etch-adhesive-systems-to-enamel-and-dentin-irradiated-with-a-novel-co2-9-3%C3%A2-%C3%AE-m-short-pulsed-laser-for-dental-restorative-procedures
#6
Peter Rechmann, N Bartolome, R Kinsel, R Vaderhobli, B M T Rechmann
The objective of this study was to evaluate the influence of CO2 9.3 μm short-pulsed laser irradiation on the shear bond strength of composite resin to enamel and dentin. Two hundred enamel and 210 dentin samples were irradiated with a 9.3 µm carbon dioxide laser (Solea, Convergent Dental, Inc., Natick, MA) with energies which either enhanced caries resistance or were effective for ablation. OptiBond Solo Plus [OptiBondTE] (Kerr Corporation, Orange, CA) and Peak Universal Bond light-cured adhesive [PeakTE] (Ultradent Products, South Jordan, UT) were used...
August 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28812029/expanded-normal-weight-obesity-and-insulin-resistance-in-us-adults-of-the-national-health-and-nutrition-examination-survey
#7
Keilah E Martinez, Larry A Tucker, Bruce W Bailey, James D LeCheminant
This study aims to expand the evaluation of normal weight obesity (NWO) and its association with insulin resistance using an NHANES (1999-2006) sample of US adults. A cross-sectional study including 5983 men and women (50.8%) was conducted. Body fat percentage (BF%) was assessed using dual-energy X-ray absorptiometry. Expanded normal weight obesity (eNWO) categories, pairings of BMI and body fat percentage classifications, were created using standard cut-points for BMI and sex-specific median for BF%. Homeostatic model assessment-insulin resistance (HOMA-IR) levels were used to index insulin resistance...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28811773/transepithelial-corneal-crosslinking-in-treatment-of-progressive-keratoconus-12-months-clinical-results
#8
Bushra Akbar, Rana Intisar-Ul-Haq, Mazhar Ishaq, Sabahat Arzoo, Kashif Siddique
OBJECTIVE: The purpose of this study was to evaluate the safety and efficacy of transepithelial corneal collagen cross linking (TE-CXL) with modified riboflavin and accelerated UVA irradiance in thin corneas with pachymetry less than 400 microns at thinnest point, untreatable by epithelium off corneal collagen cross linking (CXL) in adult Pakistani population with progressive keratoconus. METHODS: This quasi experimental study included twenty six eyes of 26 patients with progressive keratoconus who underwent accelerated transepithelial CXL in Armed forced institute of ophthalmology with 12 months follow up...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28810869/-evolution-and-financial-cost-of-socioeconomic-inequalities-in-ambulatory-care-sensitive-conditions-an-ecological-study-for-portugal-2000-2014
#9
Klára Dimitrovová, Cláudia Costa, Paula Santana, Julian Perelman
BACKGROUND: Hospitalizations for Ambulatory Care Sensitive Conditions (ACSC) are specific conditions for which hospitalization is thought to be avoidable through patient education, health promotion initiatives, early diagnosis and by appropriate chronic disease management, and have been shown to be greatly influenced by socioeconomic (SE) characteristics. We examined the SE inequalities in hospitalization rates for ACSC in Portugal, their evolution over time (2000-2014), and their associated financial burden...
August 16, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28810857/new-onset-diabetes-in-adulthood-is-associated-with-a-substantial-risk-for-mortality-at-all-ages-a-population-based-historical-cohort-study-with-a-decade-long-follow-up
#10
Inbar Zucker, Tamy Shohat, Rachel Dankner, Gabriel Chodick
BACKGROUND: Diabetes has been reported to be associated with an increased relative risk for mortality, with estimates ranging from 1.1 to 2.1. Findings are inconsistent regarding modification of the risk by gender and by age. The aim of this study was to estimate the mortality risk associated with new-onset diabetes in adulthood, by age group and gender. METHODS: From the database of a large health care provider, we identified 31,987 individuals diagnosed with diabetes during 2003-2005; and 162,656 individuals without diabetes, group-matched by age...
August 15, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28810224/simultaneous-leaching-of-arsenite-arsenate-selenite-and-selenate-and-their-migration-in-tunnel-excavated-sedimentary-rocks-i-column-experiments-under-intermittent-and-unsaturated-flow
#11
Carlito Baltazar Tabelin, Ryosuke Sasaki, Toshifumi Igarashi, Ilhwan Park, Shuichi Tamoto, Takahiko Arima, Mayumi Ito, Naoki Hiroyoshi
Rocks excavated in tunnel construction projects for roads and railways throughout Japan often leached out hazardous trace elements like arsenic (As) and selenium (Se) upon their exposure to the environment. In nature, the various oxyanionic species of As and Se not only coexist but also exhibit contrasting adsorption-desorption behaviors, so speciation is a crucial factor in their migration through natural geologic media. In this study, the leaching and transport of arsenite (As(III)), arsenate (As(V)), selenite (Se(IV)) and selenate (Se(VI)) in four tunnel-excavated rocks from the Cretaceous-Paleocene Yezo forearc basin were investigated using laboratory column experiments supplemented by batch leaching experiments...
July 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28810182/selenium-increases-hepatic-dna-methylation-and-modulates-one-carbon-metabolism-in-the-liver-of-mice
#12
Bodo Speckmann, Sarah Schulz, Franziska Hiller, Deike Hesse, Fabian Schumacher, Burkhard Kleuser, Jürgen Geisel, Rima Obeid, Tilman Grune, Anna P Kipp
The average intake of the essential trace element selenium (Se) is below the recommendation in most European countries, possibly causing sub-optimal expression of selenoproteins. It is still unclear how a suboptimal Se status may affect health. To mimic this situation, mice were fed one of three physiologically relevant amounts of Se. We focused on the liver, the organ most sensitive to changes in the Se supply indicated by hepatic glutathione peroxidase activity. In addition, liver is the main organ for synthesis of methyl groups and glutathione via one-carbon metabolism...
July 9, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28809927/in-middle-aged-and-old-obese-patients-training-intervention-reduces-leptin-level-a-meta-analysis
#13
Ildikó Rostás, László Pótó, Péter Mátrai, Péter Hegyi, Judit Tenk, András Garami, Anita Illés, Margit Solymár, Erika Pétervári, Ákos Szűcs, Andrea Párniczky, Dániel Pécsi, Zoltán Rumbus, Csaba Zsiborás, Nóra Füredi, Márta Balaskó
BACKGROUND: Leptin is one of the major adipokines in obesity that indicates the severity of fat accumulation. It is also an important etiological factor of consequent cardiometabolic and autoimmune disorders. Aging has been demonstrated to aggravate obesity and to induce leptin resistance and hyperleptinemia. Hyperleptinemia, on the other hand, may promote the development of age-related abnormalities. While major weight loss has been demonstrated to ameliorate hyperleptinemia, obese people show a poor tendency to achieve lasting success in this field...
2017: PloS One
https://www.readbyqxmd.com/read/28809759/independent-dose-verification-system-with-monte-carlo-simulations-using-topas-for-passive-scattering-proton-therapy-at-the-national-cancer-center-in-korea
#14
Wook-Geun Shin, Mauro Testa, Hak Soo Kim, Jong Hwi Jeong, Se Byeong Lee, Yeon-Joo Kim, Chul Hee Min
For the independent validation of treatment plans, we developed a Monte Carlo (MC)-based patient dose calculation system with the tool for particle simulation (TOPAS) to enable routine and automatic dose recalculation for each patient. The proton beam nozzle was modeled with TOPAS to simulate the therapeutic beam, and MC commissioning was performed by comparing percent depth dose with the measurement. The beam set-up based on the prescribed beam range and modulation width was automated by modifying the vendor-specific method...
August 15, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28809605/age-modifies-the-effect-of-2-mev-fast-neutrons-on-rat-mammary-carcinogenesis
#15
Tatsuhiko Imaoka, Mayumi Nishimura, Kazuhiro Daino, Ayaka Hosoki, Masaru Takabatake, Toshiaki Kokubo, Kazutaka Doi, Kaye Showler, Yukiko Nishimura, Hitomi Moriyama, Takamitsu Morioka, Yoshiya Shimada, Shizuko Kakinuma
The relative biological effectiveness (RBE) of neutrons depends on their physical nature (e.g., energy) and the biological context (e.g., end points, materials). From the perspective of radiological protection, age is an important biological context that influences radiation-related cancer risk, but very few studies have addressed its potential impact on neutron effects. We therefore investigated the influence of age on the effect of accelerator-generated fast neutrons (mean energy, ∼2 MeV) in an animal model of breast carcinogenesis...
August 15, 2017: Radiation Research
https://www.readbyqxmd.com/read/28809412/charging-assisted-structural-phase-transitions-in-monolayer-inse
#16
Liangzhi Kou, Aijun Du, Yandong Ma, Ting Liao, Changfeng Chen
A recently synthesized InSe monolayer exhibits highly promising electronic and transport properties; it also possesses intricate intralayer atomic bonding configurations that are conducive to modulations of crystal and electronic structures. Here we identify by first-principles calculations two new structural phases of monolayer InSe distinct from the experimentally synthesized β phase. The first, α phase, has the Se atom positions displaced relative to those in the β phase, and exhibits outstanding electronic properties similar to those of the β phase...
August 15, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28808954/heavy-metal-pollutants-in-selected-organs-of-african-giant-rats-from-three-agro-ecological-zones-of-nigeria-evidence-for-their-role-as-an-environmental-specimen-bank
#17
Ifukibot Levi Usende, Benjamin O Emikpe, James Olukayode Olopade
An assessment of the concentration of heavy metals in the liver, brain, kidney, bone, and lungs of African giant rats (AGRs) from three agro-ecological zones of Nigeria having different industrial activities was carried out using atomic absorption spectrophotometer. Twenty adult AGRs from cities in mangrove/freshwater swamp, rainforest, and woodland/tall grass savanna agro-ecological zones of Nigeria were used for this study. AGRs were euthanized, carefully dissected, and the brains, liver, lungs, bone, and kidneys were harvested, digested, and analyzed for concentrations of vanadium (V), lead (Pb), cadmium (Cd), zinc (Zn), selenium (Se), copper (Cu), and iron (Fe)...
August 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28808791/consumption-of-extra-virgin-olive-oil-improves-body-composition-and-blood-pressure-in-women-with-excess-body-fat-a-randomized-double-blinded-placebo-controlled-clinical-trial
#18
Flávia Galvão Cândido, Flávia Xavier Valente, Laís Emilia da Silva, Olívia Gonçalves Leão Coelho, Maria do Carmo Gouveia Peluzio, Rita de Cássia Gonçalves Alfenas
PURPOSE: Despite the fact that extra virgin olive oil (EVOO) is widely used in obese individuals to treat cardiovascular diseases, the role of EVOO on weight/fat reduction remains unclear. We investigated the effects of energy-restricted diet containing EVOO on body composition and metabolic disruptions related to obesity. METHODS: This is a randomized, double-blinded, placebo-controlled clinical trial in which 41 adult women with excess body fat (mean ± SD 27...
August 14, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28808644/the-comparative-study-of-refractive-index-variations-between-haigis-srk-t-and-hoffer-q-formulas-used-for-preoperative-biometry-calculation-in-patients-with-the-axial-length-25-mm
#19
Hasan Razmjoo, Hosein Atarzadeh, Neda Kargar, Mohammad Behfarnia, Kobra Nasrollahi, Ali Kamali
BACKGROUND: To compare refractive index variation between Hoffer-Q, Haigis and SRK/T formulas used for preoperative biometry calculation in patients with axial length >25 mm, undergoing cataract surgery. MATERIALS AND METHODS: This is a randomized clinical trial study was performed on 54 eyes of 54 patients with ages of 40-70 years old and axial length >25 mm classified into three groups that their IOL POWER were calculated by Haigis, SRK/T and Hoffer-Q formulas before undergoing cataract surgery...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28808420/inhibition-of-mtor-signaling-confers-protection-against-cerebral-ischemic-injury-in-acute-hyperglycemic-rats
#20
Changchun Hei, Ping Liu, Xiao Yang, Jianguo Niu, P Andy Li
Hyperglycemia is known to exacerbate neuronal death resulted from cerebral ischemia. The mechanisms are not fully understood. The mammalian target of rapamycin (mTOR) pathway regulates cell growth, division and apoptosis. Recent studies suggest that activation of mTOR may mediate ischemic brain damage. The objective of the present experiment is to explore whether mTOR mediates ischemic brain damage in acute hyperglycemic animals. Rats were subjected to 10 min of forebrain ischemia under euglycemic, hyperglycemic and rapamycin-treated hyperglycemic conditions...
2017: International Journal of Biological Sciences
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