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https://www.readbyqxmd.com/read/28228417/oxygen-sensitive-regulation-and-neuroprotective-effects-of-growth-hormone-dependent-growth-factors-during-early-postnatal-development
#1
Susan Jung, Gudrun Boie, Helmuth-Guenther Doerr, Regina Trollmann
Perinatal hypoxia severely disrupts metabolic and somatotrophic development, as well as cerebral maturational programs. Hypoxia-inducible transcription factors (HIF) represent the most important endogenous adaptive mechanisms to hypoxia, activating a broad spectrum of growth factors that contribute to cell survival and energy homeostasis. To analyse effects of systemic hypoxia and growth hormone (GH) therapy (rhGH) on HIF-dependent growth factors during early postnatal development, we compared protein (ELISA) and mRNA levels (quantitative RT PCR) of growth factors in plasma and brain between normoxic and hypoxic mice (8% O2, 6 h; postnatal day 7, P7) at P14...
February 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28225103/beneficial-effects-of-lycium-barbarum-polysaccharide-on-spermatogenesis-by-improving-antioxidant-activity-and-inhibiting-apoptosis-in-streptozotocin-induced-diabetic-male-mice
#2
Guang-Jiang Shi, Jie Zheng, Jing Wu, Hai-Qi Qiao, Qing Chang, Yang Niu, Tao Sun, Yu-Xiang Li, Jian-Qiang Yu
Spermatogenic dysfunction is one of the major secondary complications of diabetes. L. barbarum polysaccharide (LBP) has long been considered to possess anti-apoptotic activities and antioxidant, anti-inflammatory and fertility-enhancing properties in traditional medical practices in China. The aim of the current study was to seek out scientific evidence to determine if LBP also contributes to the recovery from spermatogenic dysfunction in diabetic individuals. We investigated whether the oral administration of LBP in streptozotocin (STZ)-induced type-1 diabetic male mice would reverse spermatogenic dysfunction and improve histological damage in testes...
February 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28220831/the-distribution-of-the-apparent-diffusion-coefficient-as-an-indicator-of-the-response-to-chemotherapeutics-in-ovarian-tumour-xenografts
#3
Monique C Tourell, Ali Shokoohmand, Marietta Landgraf, Nina P Holzapfel, Patrina S P Poh, Daniela Loessner, Konstantin I Momot
Diffusion-weighted magnetic resonance imaging (DW-MRI) was used to evaluate the effects of single-agent and combination treatment regimens in a spheroid-based animal model of ovarian cancer. Ovarian tumour xenografts grown in non-obese diabetic/severe-combined-immunodeficiency (NOD/SCID) mice were treated with carboplatin or paclitaxel, or combination carboplatin/paclitaxel chemotherapy regimens. After 4 weeks of treatment, tumours were extracted and underwent DW-MRI, mechanical testing, immunohistochemical and gene expression analyses...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210876/effect-of-hyperhomocysteinemia-on-redox-balance-and-redox-defence-enzymes-in-ischemia-reperfusion-injury-and-or-after-ischemic-preconditioning-in-rats
#4
Martin Petráš, Anna Drgová, Mária Kovalská, Zuzana Tatarková, Barbara Tóthová, Oľga Križanová, Ján Lehotský
Increased level of homocysteine (hHcy) in plasma is an accompanying phenomenon of many diseases, including a brain stroke. This study determines whether hyperhomocysteinemia (which is a risk factor of brain ischemia) itself or in combination with ischemic preconditioning affects the ischemia-induced neurodegenerative changes, generation of reactive oxygen species (ROS), lipoperoxidation, protein oxidation, and activity of antioxidant enzymes in the rat brain cortex. The hHcy was induced by subcutaneous administration of homocysteine (0...
February 16, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28208902/study-of-aortic-valve-sclerosis-as-a-marker-of-atherosclerosis-in-acute-coronary-syndromes
#5
Preeti Jane Picardo, Peter Daniel S Khariong, Ranendra Hajong, Debobratta Hajong, Narang Naku, Madhur Anand, Girish Sharma, K Lenish Singh
INTRODUCTION: Aortic valve sclerosis has been shown to be associated with increased incidence, chances of developing myocardial infarction and even death. The epidemiological risk factors causing calcification of aortic valves have also been found to cause atherosclerosis. AIM: To analyse the epidemiological risk factors causing aortic valve sclerosis which have been studied in details and analysed to see whether they cause any significant increase in the incidence of cardiovascular events...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28202635/short-term-subclinical-zinc-deficiency-in-weaned-piglets-affects-cardiac-redox-metabolism-and-zinc-concentration
#6
Daniel Brugger, Wilhelm M Windisch
Background: Subclinical zinc deficiency (SZD) represents the common zinc malnutrition phenotype. However, its association with oxidative stress is not well understood. The heart muscle may be a promising target for studying early changes in redox metabolism.Objective: We investigated the effects of short-term SZD on cardiac redox metabolism in weaned piglets.Methods: Forty-eight weaned German Large White × Landrace × Piétrain piglets (50% castrated males and 50% females; body weight of 8.5 kg) were fed diets with different zinc concentrations for 8 d...
February 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28197406/long-term-formation-of-aggressive-bony-lesions-in-dogs-with-mid-diaphyseal-fractures-stabilized-with-metallic-plates-incidence-in-a-tertiary-referral-hospital-population
#7
Robert S Gilley, Elizabeth Hiebert, Kemba Clapp, Lara Bartl-Wilson, Michael Nappier, Stephen Werre, Katherine Barnes
The incidence of complications secondary to fracture stabilization, particularly osteolytic lesions and bony tumor formation, has long been difficult to evaluate. The objective of this study was to describe the long-term incidence of aggressive bony changes developing in dogs with long bone diaphyseal fractures stabilized by metallic bone plates compared to a breed-, sex-, and age-matched control group. The medical records of a tertiary referral center were retrospectively reviewed for dogs that matched each respective criterion...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28192505/a-perinatal-review-of-singleton-stillbirths-in-an-australian-metropolitan-tertiary-centre
#8
Supuni Kapurubandara, Sarah J Melov, Evangeline R Shalou, Monika Mukerji, Stephen Yim, Ujvala Rao, Zain Battikhi, Nirusha Karunaratne, Roshini Nayyar, Thushari I Alahakoon
It is estimated that everyday 7000 women worldwide have their pregnancy end with a stillbirth, however, research and data collection on stillbirth remains underfunded. This stillbirth case series audit investigates an apparent rise in stillbirths at a Sydney tertiary referral hospital in Australia. A retrospective case series of singleton stillbirths from 2005-2010 was conducted at Westmead Hospital. Stillbirth was defined as per the Perinatal Society of Australia and New Zealand classification as a death of a baby before or during birth, from the 20th week of pregnancy onwards, or a birth weight of 400 grams or more if gestational age is unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28191702/hospitalizations-costs-and-outcomes-associated-with-heroin-and-prescription-opioid-overdoses-in-the-united-states-2001-2012
#9
Douglas J Hsu, Ellen P McCarthy, Jennifer P Stevens, Kenneth J Mukamal
BACKGROUND AND AIMS: The full burden of the opioid epidemic on U.S. hospitals has not been described. We aimed to estimate how heroin (HOD) and prescription opioid (POD) overdose-associated admissions, costs, outcomes, and patient characteristics have changed from 2001 - 2012. DESIGN: Retrospective cohort study of hospital admissions from the National Inpatient Sample. SETTING: United States of America. PARTICIPANTS: Hospital admissions in patients 18 years of age or older admitted with a diagnosis of HOD or POD...
February 13, 2017: Addiction
https://www.readbyqxmd.com/read/28190598/lipid-lowering-therapy-in-patients-with-high-cardiovascular-risk-dose-or-combination
#10
Leonardo Roever, Giuseppe Biondi-Zoccai, Sunil V Rao
Cardiovascular disease is the leading cause of death in the world. Dyslipidemia, manifested by elevated low-density lipoprotein cholesterol (LDL-C) levels, is central to the development and progression of atherosclerosis. Dyslipidemia has become a primary target of intervention in strategies for the prevention of cardiovascular events. Therapeutic lifestyle changes, such as increased physical activity, weight loss, smoking cessation, and adoption of a healthier diet, are effectively reducing cardiovascular risk in primary and secondary prevention...
February 9, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28182644/multiple-strains-probiotics-appear-to-be-the-most-effective-probiotics-in-the-prevention-of-necrotizing-enterocolitis-and-mortality-an-updated-meta-analysis
#11
Hung-Yang Chang, Jin-Hua Chen, Jui-Hsing Chang, Hung-Chih Lin, Chien-Yu Lin, Chun-Chih Peng
BACKGROUND: Some oral probiotics have been shown to prevent necrotizing enterocolitis (NEC) and decrease mortality effectively in preterm very low birth weight (PVLBW) infants. However, it is unclear whether a single probiotic or a mixture of probiotics is most effective for the prevention of NEC. OBJECTIVE: A meta-analysis was conducted by reviewing the most up to date literature to investigate whether multiple strains probiotics are more effective than a single strain in reducing NEC and death in PVLBW infants...
2017: PloS One
https://www.readbyqxmd.com/read/28182335/how-to-monitor-pregnancies-complicated-by-fetal-growth-restriction-and-delivery-below-32-weeks
#12
W Ganzevoort, N Mensing van Charante, B Thilaganathan, F Prefumo, B Arabin, C M Bilardo, C Brezinka, J B Derks, A Diemert, J J Duvekot, E Ferrazzi, T Frusca, K Hecher, N Marlow, P Martinelli, E Ostermayer, A T Papageorghiou, D Schlembach, Ktm Schneider, T Todros, A Valcamonico, Gha Visser, A van Wassenaer-Leemhuis, C C Lees, H Wolf
OBJECTIVES: In the recent TRUFFLE study it appeared that, in pregnancies complicated by fetal growth restriction (FGR) between 26 and 32 weeks, monitoring of the ductus venosus (DV) combined with computerised cardiotocography (cCTG) as a trigger for delivery, increased the chance of infant survival without neurological impairment. However, concerns in interpretation were raised as DV monitoring appeared associated with a non-significant increase in fetal death, and part of the infants were delivered after 32 weeks, after which the study protocol was no longer applied...
February 9, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28179491/increases-in-plasma-tryptophan-are-inversely-associated-with-incident-cardiovascular-disease-in-the-prevenci%C3%A3-n-con-dieta-mediterr%C3%A3-nea-predimed-study
#13
Edward Yu, Miguel Ruiz-Canela, Marta Guasch-Ferré, Yan Zheng, Estefania Toledo, Clary B Clish, Jordi Salas-Salvadó, Liming Liang, Dong D Wang, Dolores Corella, Montse Fitó, Enrique Gómez-Gracia, José Lapetra, Ramón Estruch, Emilio Ros, Montserrat Cofán, Fernando Arós, Dora Romaguera, Lluis Serra-Majem, Jose V Sorlí, Frank B Hu, Miguel A Martinez-Gonzalez
Background: During development of cardiovascular disease (CVD), interferon-γ-mediated inflammation accelerates degradation of tryptophan into downstream metabolites. A Mediterranean diet (MedDiet) consisting of a high intake of extra-virgin olive oil (EVOO), nuts, fruits, vegetables, and cereals has been demonstrated to lower the risk of CVD. The longitudinal relation between tryptophan and its downstream metabolites and CVD in the context of a MedDiet is unstudied.Objective: We sought to investigate the relation between metabolites in the tryptophan-kynurenine pathway and CVD in the context of a MedDiet pattern...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28176174/adiposity-post-diagnosis-weight-change-and-risk-of-cardiovascular-events-among-early-stage-breast-cancer-survivors
#14
Elizabeth M Cespedes Feliciano, Marilyn L Kwan, Lawrence H Kushi, Erin K Weltzien, Adrienne L Castillo, Bette J Caan
PURPOSE: Little research examines whether adiposity or post-diagnosis weight changes influence Cardiovascular disease (CVD) among breast cancer patients for whom effects may differ due to treatment and recovery. METHODS: We studied Stage I-III breast cancer survivors 18 to  <80 years, without pre-existing CVD, diagnosed from 1997 to 2013 at Kaiser Permanente. Women reported weight at diagnosis and weight and waist circumference (WC) around 24 months post diagnosis...
February 7, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28152002/the-effects-of-elevated-seawater-temperatures-on-caribbean-gorgonian-corals-and-their-algal-symbionts-symbiodinium-spp
#15
Tamar L Goulet, Kartick P Shirur, Blake D Ramsby, Roberto Iglesias-Prieto
Global climate change not only leads to elevated seawater temperatures but also to episodic anomalously high or low temperatures lasting for several hours to days. Scleractinian corals are detrimentally affected by thermal fluctuations, which often lead to an uncoupling of their mutualism with Symbiodinium spp. (coral bleaching) and potentially coral death. Consequently, on many Caribbean reefs scleractinian coral cover has plummeted. Conversely, gorgonian corals persist, with their abundance even increasing...
2017: PloS One
https://www.readbyqxmd.com/read/28145470/genetic-polymorphisms-and-their-association-with-brain-and-behavioural-measures-in-heterogeneous-stock-mice
#16
Magdalena Janecka, Sarah J Marzi, Michael J Parsons, Lin Liu, Jose L Paya-Cano, Rebecca G Smith, Cathy Fernandes, Leonard C Schalkwyk
Although the search for quantitative trait loci for behaviour remains a considerable challenge, the complicated genetic architecture of quantitative traits is beginning to be understood. The current project utilised heterogeneous stock (HS) male mice (n = 580) to investigate the genetic basis for brain weights, activity, anxiety and cognitive phenotypes. We identified 126 single nucleotide polymorphisms (SNPs) in genes involved in regulation of neurotransmitter systems, nerve growth/death and gene expression, and subsequently investigated their associations with changes in behaviour and/or brain weights in our sample...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28134285/aqueous-extract-of-polygonum-bistorta-modulates-proteostasis-by-ros-induced-er-stress-in-human-hepatoma-cells
#17
Yu-Huei Liu, Yui-Ping Weng, Hsuan-Yuan Lin, Sai-Wen Tang, Chao-Jung Chen, Chi-Jung Liang, Chung-Yu Ku, Jung-Yaw Lin
Hepatocellular carcinoma (HCC) remains the leading cause of cancer mortality with limited therapeutic targets. The endoplasmic reticulum (ER) plays a pivotal role in maintaining proteostasis in normal cells. However, alterations in proteostasis are often found in cancer cells, making it a potential target for therapy. Polygonum bistorta is used in traditional Chinese medicine owing to its anticancer activities, but the molecular and pharmacological mechanisms remain unclear. Using hepatoma cells as a model system, this study demonstrated that P...
January 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28123538/-obligate-anaerobic-salmonella-strain-yb1-suppresses-liver-tumor-growth-and-metastasis-in-nude-mice
#18
Chang-Xian Li, Bin Yu, Lei Shi, Wei Geng, Qiu-Bin Lin, Chang-Chun Ling, Mei Yang, Kevin T P Ng, Jian-Dong Huang, Kwan Man
The antitumor properties of bacteria have been demonstrated over the past decades. However, the efficacy is limited and unclear. Furthermore, systemic infection remains a serious concern in bacteria treatment. In this study, the effect of YB1, a rationally designed 'obligate' anaerobic Salmonella typhimurium strain, on liver tumor growth and metastasis in a nude mouse orthotopic liver tumor model was investigated. The orthotopic liver tumor model was established in nude mice using the hepatocellular carcinoma cell line MHCC-97L...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28122064/the-impact-of-renin-angiotensin-system-blockade-on-renal-outcomes-and-mortality-in-pre-dialysis-patients-with-advanced-chronic-kidney-disease
#19
Yun Jung Oh, Sun Moon Kim, Byung Chul Shin, Hyun Lee Kim, Jong Hoon Chung, Ae Jin Kim, Han Ro, Jae Hyun Chang, Hyun Hee Lee, Wookyung Chung, Chungsik Lee, Ji Yong Jung
Renin-angiotensin-system (RAS) blockade is thought to slow renal progression in patients with chronic kidney disease (CKD). However, it remains uncertain if the habitual use of RAS inhibitors affects renal progression and outcomes in pre-dialysis patients with advanced CKD. In this multicenter retrospective cohort study, we identified 2,076 pre-dialysis patients with advanced CKD (stage 4 or 5) from a total of 33,722 CKD patients. RAS blockade users were paired with non-users for analyses using inverse probability of treatment-weighted (IPTW) and propensity score (PS) matching...
2017: PloS One
https://www.readbyqxmd.com/read/28120497/rationale-design-and-baseline-characteristics-of-the-canagliflozin-cardiovascular-assessment-study-renal-canvas-r-a-randomized-placebo-controlled-trial
#20
Bruce Neal, Vlado Perkovic, David R Matthews, Kenneth W Mahaffey, Greg Fulcher, Gary Meininger, Ngozi Erondu, Mehul Desai, Wayne Shaw, Frank Vercruysse, Jacqueline Yee, Hsiaowei Deng, Dick de Zeeuw
AIMS: The primary aim of the CANagliflozin cardioVascular Assessment Study-Renal (CANVAS-R) is to determine whether the favourable effects of inhibition of the sodium glucose co-transporter 2 (SGLT2) on blood glucose, blood pressure and body weight are accompanied by protection against adverse renal outcomes. MATERIALS AND METHODS: CANVAS-R is a prospective, randomized, double-blind, placebo-controlled trial in patients with type 2 diabetes with a history or high risk of cardiovascular events...
January 25, 2017: Diabetes, Obesity & Metabolism
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