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https://www.readbyqxmd.com/read/29236393/validation-of-biological-activity-testing-procedure-of-recombinant-human-interleukin-7
#1
T N Lutsenko, M V Kovalenko, O Yu Galkin
Validation procedure for method of monitoring the biological activity of reсombinant human interleukin-7 has been developed and conducted according to the requirements of national and international recommendations. This method is based on the ability of recombinant human interleukin-7 to induce proliferation of T lymphocytes. It has been shown that to control the biological activity of recombinant human interleukin-7 peripheral blood mononuclear cells (PBMCs) derived from blood or cell lines can be used. Validation charac­teristics that should be determined depend on the method, type of product or object test/measurement and biological test systems used in research...
January 2017: Ukrainian Biochemical Journal
https://www.readbyqxmd.com/read/29236389/fecal-short-chain-fatty-acids-at-different-time-points-after-ceftriaxone-administration-in-rats
#2
Yu V Holota, O O Holubenko, A M Ostapchuk, T M Serhiychuk, L V Zakordonets, G M Tolstanova
Short-chain fatty acids (SCFAs) are major products of the microbial fermentation of dietary fiber in the colon. Recent studies suggest that these products of microbial metabolism in the gut act as signaling molecules, influence host energy homeostasis and play major immunological roles. In the present study, defined the long-term effects of ceftriaxone administration on the fecal SCFAs concentration in Wistar rats. Ceftriaxone (300 mg/kg, i.m.) was administered daily for 14 days. Rats were euthanized in 1, 15 and 56 days after ceftriaxone withdrawal...
January 2017: Ukrainian Biochemical Journal
https://www.readbyqxmd.com/read/29236378/urinary-bisphenol-a-and-obesity-in-adults-results-from-the-canadian-health-measures-survey
#3
Minh T Do, Vicky C Chang, Michelle A Mendez, Margaret de Groh
INTRODUCTION: Exposure to bisphenol A (BPA) has been shown to affect lipid metabolism and promote weight gain in animal studies. Recent epidemiological studies also support a link between BPA and obesity in human populations, although many were limited to a single adiposity measure or have not considered potential confounding by dietary factors. The purpose of this study is to examine associations between urinary BPA and adiposity measures in a nationally representative sample of Canadian adults...
December 2017: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/29236343/relationship-between-reticular-pseudodrusen-and-choroidal-thickness-in-intermediate-age-related-macular-degeneration
#4
Chi Yun Doreen Ho, Jia Jia Lek, Khin Zaw Aung, Myra B McGuinness, Chi D Luu, Robyn H Guymer
IMPORTANCE: Reticular pseudodrusen (RPD) is strongly associated with late age-related macular degeneration (AMD) but their etiology remains unknown. RPD have been associated with reduced choroidal thickness but most studies are limited by small sample size and varying severity of AMD. BACKGROUND: To investigate the relationship between choroidal thickness (ChT) and RPD in eyes with intermediate AMD (iAMD), controlling for variables known to influence ChT. DESIGN: Retrospective cohort study PARTICIPANTS: Participants were recruited from Centre for Eye Research Australia...
December 13, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29236342/longitudinal-assessment-of-rabbit-renal-fibrosis-induced-by-unilateral-ureteral-obstruction-using-two-dimensional-susceptibility-weighted-imaging
#5
Jing-Gang Zhang, Zhao-Yu Xing, Ting-Ting Zha, Xiao-Juan Tian, Ya-Nan Du, Jie Chen, Wei Xing
BACKGROUND: Previous studies indicated that two-dimensional-susceptibility weighted imaging (2D-SWI) could serve as a useful biomarker for differentiating the grade of liver fibrosis. PURPOSE: To evaluate the feasibility of 2D-SWI in the dynamic quantification of renal fibrosis in a rabbit model. STUDY TYPE: Longitudinal study. ANIMAL MODEL: Twenty-Four New Zealand White Rabbits including control group (n = 4); and renal fibrosis group (n = 20), by means of a unilateral ureteral obstruction (UUO) model...
December 13, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29236339/physical-activity-level-among-children-recovering-from-severe-acute-malnutrition
#6
Esther Babirekere-Iriso, Maren Johanne Heilskov Rytter, Hanifa Namusoke, Ezekiel Mupere, Kim F Michaelsen, Søren Brage, Ken D Stark, Lotte Lauritzen, André Briend, Henrik Friis, Daniel Faurholt-Jepsen
OBJECTIVE: To assess the level and predictors of physical activity at discharge among children recovering from severe acute malnutrition (SAM). METHODS: We conducted a prospective study among 69 children 6 - 59 months of age admitted with SAM for nutritional rehabilitation at Mulago National Referral Hospital, Uganda. Using hip-mounted tri-axial accelerometers, we measured physical activity expressed as counts per minute (cpm) during the last three days of hospital treatment...
December 13, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29236338/inflammatory-cytokine-and-c-reactive-protein-concentrations-in-dogs-with-systemic-inflammatory-response-syndrome
#7
Kris Gommeren, Isabelle Desmas, Alexandra Garcia, Natalie Bauer, Andreas Moritz, Joachim Roth, Dominique Peeters
OBJECTIVE: To evaluate C-reactive protein (CRP), interleukin 6 (IL-6), and tumor necrosis factor alpha (TNF-α) kinetics in dogs with a systemic inflammatory response syndrome (SIRS) presented to an emergency service. We hypothesized serum CRP concentrations would increase and vary during hospitalization, and would correlate with plasma IL-6 and TNF-α concentrations, vary in magnitude according to the underlying disease, and predict survival. DESIGN: Prospective, observational, clinical study...
December 13, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/29236334/post-transfusional-changes-in-serum-hepcidin-and-iron-parameters-in-preterm-infants
#8
Fotini Stripeli, John Kapetanakis, Dimitris Gourgiotis, Antonis Drakatos, Maria Tsolia, Lydia Kossiva
BACKGROUND: Packed red blood cells (PRBCs) transfusions are common in preterm neonates. Hepcidin acts as a negative feedback iron regulator. Iron parameters such as immature reticulocyte fraction (IRF) and high light scatter reticulocytes (HLR) are used to clarify iron metabolism. Very little is known about the regulation of hepcidin in the preterms as most of reports evaluated the prohepcidin. The aim of the study was to evaluate serum hepcidin and established hematological parameters in preterms after the transfusion...
December 13, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29236330/exploring-the-usefulness-of-key-green-physicochemical-properties-quantitative-structure-activity-relationship-qsar-for-solvents-from-biomass
#9
Estefanía Zuriaga, Beatriz Giner, María Pilar Ribate, Cristina B García, Laura Lomba
During the last decades there has been a growing interest in the development of new solvents from biomass. Some of these new solvents have been classified as green due to their renewable and sustainable source. However, characterization from the ecotoxicological and physicochemical point of view is needed in order to categorize them as green solvents. We have selected several key physicochemical properties that can reflect environmental features (density, boiling point, critical aggregation concentration and Log P) and explored their usefulness for preliminary assessing the green character of the studied solvents...
December 13, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29236329/predicting-the-bioavailability-of-sediment-bound-uranium-to-the-freshwater-midge-chironomus-dilutus-using-physicochemical-properties
#10
Sarah E Crawford, Stephen Lofts, Karsten Liber
Assessment of uranium (U)-contaminated sediment is often hindered by the inability to accurately account for the physicochemical properties of sediment that modify U bioavailability. The goal of this research was to determine whether sediment-associated U bioavailability could be predicted over a wide range of conditions and sediment properties using simple regressions and a geochemical speciation model, the Windermere Humic Aqueous Model (WHAM7). Data from U-contaminated field sediment bioaccumulation tests, along with previously published bioaccumulation studies with U-spiked field and formulated sediments were used to examine the models...
December 13, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29236322/microrna-383-suppresses-the-pi3k-akt-mtor-signaling-pathway-to-inhibit-development-of-cervical-cancer-via-down-regulating-parp2
#11
Peng Teng, Yan Jiao, Min Hao, Xin Tang
This study aims to evaluate the effect of the regulatory relationship between microRNA-383 (miR-383) and PARP2 in the cell migration and invasion in human with cervical cancer (CC) via the PI3K-AKT-MTOR signaling pathway. Cancerous tissues and corresponding paracancerous tissues were collected from 115 patients with CC. The positive expression rate of PARP2 was detected by immunohistochemistry. Hela cells with highest miR-383 expression were selected and assigned into the blank, negative control (NC), miR-383 mimic, miR-383 inhibitor, si-PARP2 and miR-383 inhibitor + si-PARP2 groups...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236319/effects-of-long-non-coding-rna-host2-on-cell-migration-and-invasion-by-regulating-microrna-let-7b-in-breast-cancer
#12
Peng-Wei Lu, Lin Li, Fang Wang, Yuan-Ting Gu
The study intends to investigate the effects of long non-coding RNA HOST2 (lncRNA HOST2) on cell migration and invasion by regulating microRNA let-7b (let-7b) in breast cancer. Breast cancer and adjacent normal tissues were collected from 98 patients with breast cancer. Breast cancer MCF-7 cells were divided into the blank, negative control (NC), pcDNA3-Mock, siHOST2, let-7b inhibitor, pcDNA3-HOST2, let-7b mimic, pcDNA3-HOST2 + let-7b mimic and siHOST2 + let-7b inhibitor groups. RT-qPCR was used to detect the mRNA expressions of HOST2, let-7b and c-Myc...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236316/2-5-hexanedione-induces-bone-marrow-mesenchymal-stem-cell-apoptosis-via-inhibition-of-akt-bad-signal-pathway
#13
Jinsong Sun, Xiaoxia Shi, Shuangyue Li, Fengyuan Piao
2,5-Hexanedione (HD) is an important bioactive metabolite of n-hexane and mediates the neurotoxicity of parent compound. Studies show that HD induces apoptotic death of neural progenitor cells. However, its underlying mechanism remains unknown. Mesenchymal stem cells (MSCs) are multipotential stem cells with the ability to differentiate into various cell types and have been used as cell model for studying the toxic effects of chemicals on stem cells. In this study, we exposed rat bone marrow MSCs to 0, 10, 20, and 40 mM HD in vitro...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236315/lnc-rna-snhg20-participated-in-proliferation-invasion-and-migration-of-breast-cancer-cells-via-mir-495
#14
Yan-Xing Guan, Zhan-Min Zhang, Xue-Zhong Chen, Qing Zhang, Shao-Zheng Liu, Yong-Lu Zhang
OBJECTIVE: To explore the mechanism of lnc SNHG20 in the regulation of proliferation, invasion and migration of breast cancer cells. MATERIALS AND METHODS: mRNA levels of SNHG20, miR-495 and HER2 were detected by qRT-PCR. Protein level of HER2 was measured by Western blot. Cell proliferation, invasion and migration were detected by CCK-8 assay, Boyden chamber assay and Transwell assay. The combination between SNHG20 and miR-495 was confirmed by RNA pull down assay...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236313/micrornas-and-exosomes-in-depression-potential-diagnostic-biomarkers
#15
Jahanshir Tavakolizadeh, Kambiz Roshanaei, Arash Salmaninejad, Reza Yari, Javid Sadri Nahand, Hoda Khoshdel Sarkarizi, Seyed Mojtaba Mousavi, Reza Salarinia, Majid Rahmati, Seyed Farshid Mousavi, Ryan Mokhtari, Hamed Mirzaei
Depression is known as one of important psychiatric disorders which could be associated with disability among various populations. Diagnostic and statistical manual of mental disorders, 4th edition (DSM-IV) and international statistical classification of diseases and related health problems (ICD-10) could be used as subjective diagnostic schemes for identification of mental disorders such as depression. Utilization of subjective diagnostic schemes are associated with limitations. Hence, it seems that employing of new diagnosis platforms is required...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236303/impact-of-antimicrobial-stewardship-program-on-hospitalized-patients-at-the-intensive-care-unit-a-prospective-audit-and-feedback-study
#16
Maher R Khdour, Hussein O Hallak, Mamoon Al-Deyab, Mowafq A Nasif, Aliaa M Khalili, Ahamad A Dallashi, Mohammad B Khofash, Michael G Scott
AIMS: Inappropriate use of antibiotics is one of the most important factors contributing to the emergence of drug resistant pathogens. The purpose of this study was to measure the clinical impact of Antimicrobial Stewardship Program (ASP) interventions on hospitalized patients at the Intensive care unit at Palestinian Medical Complex. METHODS: A prospective audit with intervention and feedback by ASP team within 48-72h of antibiotic administration began in Sep, 2015...
December 13, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29236302/recovery-of-hepatitis-c-specific-t-cell-responses-after-rituximab-therapy-in-hepatitis-c-mixed-cryoglobulinemic-vasculitis
#17
Poonam Mathur, Benjamin Emmanuel, Michael Sneller, Xiaozhen Zhang, Bhawna Poonia, Shyamasundaran Kottilil
BACKGROUND & AIMS: Mixed cryoglobulinemic vasculitis is associated with monoclonal B cell expansion in patients with chronic hepatitis C (HCV) infection. B cell depletion therapy using rituximab, a CD20 monoclonal antibody, has been successful in achieving remission from symptomatic disease. This study investigated whether B cell depletion therapy has an impact on activation of HCV-specific T cell phenotype and function. METHODS: Nineteen patients with Hepatitis C mixed cryoglobulinemic vasculitis were treated with 4 cycles of rituximab (375mg/m2 ) and variables were measured 6 months after therapy...
December 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29236301/synergistic-effect-of-carnosine-on-browning-of-adipose-tissue-in-exercised-obese-rats-a-focus-on-circulating-irisin-levels
#18
Mona F Schaalan, Basma K Ramadan, Azza H Abd Elwahab
BACKGROUND: The recent appreciation of the energy burning capacity of brown adipose tissue turns it to an attractive target as anti-obesity therapy. OBJECTIVE: to evaluate the effect of L-carnosine on browning of white adipose tissue in exercised obese rats. METHODS: Sixty adult male Wistar albino rats between 7-8 weeks-old weighing 130-150 g were allocated into six groups;(i) normal control rats fed normal diet; (ii) high fat diet (HFD)-induced obese rats, (iii) normal control rats fed normal diet and injected with L-carnosine (250mg/kg), (iv) HFD-rats injected with L-carnosine (250mg/kg),(v): HFD-rats subjected to exercise training; (vi): HFD- rats subjected to exercise training and L-carnosine together...
December 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29236297/mri-change-metrics-of-facioscapulohumeral-muscular-dystrophy-stir-and-t1
#19
Mark R Ferguson, Sandra L Poliachik, Christopher B Budech, Nancy E Gove, Gregory T Carter, Leo H Wang, Daniel G Miller, Dennis W W Shaw, Seth D Friedman
INTRODUCTION: MRI evaluation in facioscapulohumeral muscular dystrophy (FSHD) demonstrates fatty replacement and inflammation/edema in muscle. Our previous work demonstrated Short T1 Inversion Recovery (STIR)-hyperintense (STIR+) signal in muscle 2 years prior to fatty replacement. We evaluated leg muscle STIR changes and fatty replacement within 14 months. METHODS: FSHD subjects received 2 MRI scans of thigh and calf over a 6.9-13.8 month interval. Quality of life measures were collected...
December 13, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29236291/dysregulation-of-mirna-biogenesis-machinery-and-mirna-rna-ratio-in-skeletal-muscle-of-als-mice
#20
Aaron P Russell, Lobna Ghobrial, Shyuan Ngo, Justin Yerbury, Evelyn Zacharewicz, Roger Chung, Séverine Lamon
INTRODUCTION: The pathology of amyotrophic lateral sclerosis (ALS) is associated with impaired RNA processing and miRNA dysregulation. Here we investigate the regulation of the members of the miRNA biogenesis pathways and total miRNA levels at different stages of the disease. METHODS: Muscle, brain and spinal cord tissue were obtained from pre-symptomatic, symptomatic and end-stage SOD1G93A mice. miRNA and transcript levels were measured by qPCR. RESULTS: As the diseases progresses, several genes involved in miRNA biogenesis as well as the miRNA/total RNA ratio increased in the tibialis anterior muscle, but not in the soleus or in neural tissue...
December 13, 2017: Muscle & Nerve
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