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https://www.readbyqxmd.com/read/29793206/effects-on-the-hepatic-transcriptome-of-chicken-embryos-in-ovo-exposed-to-phenobarbital
#1
Jiahua Guo, Shohei Ito, Hoa Thanh Nguyen, Kimika Yamamoto, Hisato Iwata
This work aimed at evaluating the toxic effects of in ovo exposure to phenobarbital (PB) and unveiling the mode of action by transcriptome analysis in the embryonic liver of a model avian species, chicken (Gallus gallus). Embryos were initially treated with saline or 1 μg PB /g egg at Hamburger Hamilton Stage (HHS) 1 (1st day), followed by 20 days of incubation to HHS 46. At 21st day, chicks that pipped successfully were euthanized and dissected for assessing the PB caused effects on phenotypes and the liver transcriptome in both genders...
May 21, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29793197/association-of-low-moderate-urine-arsenic-and-qt-interval-cross-sectional-and-longitudinal-evidence-from-the-strong-heart-study
#2
Katherine A Moon, Yiyi Zhang, Eliseo Guallar, Kevin A Francesconi, Walter Goessler, Jason G Umans, Lyle G Best, Barbara V Howard, Richard B Devereux, Peter M Okin, Ana Navas-Acien
Epidemiologic studies suggest that chronic exposure to arsenic is related to cardiovascular disease (CVD), but the pathophysiological link remains uncertain. We evaluated the association of chronic low-moderate arsenic exposure and arsenic metabolism with baseline difference and annual change in ECG measures (QT interval, JT interval, PR interval, QRS duration, and QT dispersion) using linear mixed models in the Strong Heart Study main cohort (N = 1174, median age 55 years) and family study (N = 1695 diabetes-free, median age 36 years)...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29793137/3-o-sulfation-of-heparin-leads-to-hepatotropism-and-longer-circulatory-half-life
#3
Colton M Miller, Yongmei Xu, Katrina M Kudrna, Blake E Hass, Brianna M Kellar, Andrew W Egger, Jian Liu, Edward N Harris
INTRODUCTION: Heparins are common blood anticoagulants that are critical for many surgical and biomedical procedures used in modern medicine. In contrast to natural heparin derived from porcine gut mucosa, synthetic heparins are homogenous by mass, polymer length, and chemistry. MATERIALS & METHODS: Stable cell lines expressing the human and mouse Stabilin receptors were used to evaluate endocytosis of natural and synthetic heparin. We chemoenzymatically produced synthetic heparin consisting of 12 sugars (dodecamers) containing 14 sulfate groups resulting in a non-3-O sulfated structure (n12mer)...
May 17, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29793094/effects-of-chronic-antipsychotic-drug-exposure-on-the-expression-of-translocator-protein-and-inflammatory-markers-in-rat-adipose-tissue
#4
Anita Calevro, Marie-Caroline Cotel, Sridhar Natesan, Michel Modo, Anthony C Vernon, Valeria Mondelli
The precise effect of antipsychotic drugs on either central or peripheral inflammation remains unclear. An important issue in this debate is to what extent the known peripheral metabolic effects of antipsychotics, including increased adiposity, may contribute to increased inflammation. Adipose tissue is known to contribute to the development of systemic inflammation, which can eventually lead to insulin resistance and metabolic dysregulation. As a first step to address this question, we evaluated whether chronic exposure to clinically comparable doses of haloperidol or olanzapine resulted in the immune activation of rat adipose tissue...
May 16, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29793047/transcript-profiling-of-salt-tolerant-tobacco-mutants-generated-via-mutation-breeding
#5
Özge Çelik, Aybüke Ekşioğlu, Enes Yağız Akdaş
The main aim of the study is to identify the genes differentially, predominantly or specifically expressed in salt tolerant tobacco mutants, improved from Akhisar 97 and İzmir Özbaş varieties via mutation breeding, with respect to unstressed control plants. Seven tobacco mutants which have different salt tolerance capacities were evaluated by Gene Fishing analysis. Under stress conditions differentially expressed 100 reproducible bands were identified (74 of up-regulated and 20 of down-regulated while 6 were unknown)...
May 21, 2018: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/29792983/impact-of-genetic-influence-on-serum-total-and-free-25-hydroxyvitamin-d-in-humans
#6
Balázs Szili, Boglárka Szabó, Péter Horváth, Bence Bakos, Györgyi Kirschner, János P Kósa, Erzsébet Toldy, Zsuzsanna Putz, Péter Lakatos, Ádám Tabák, István Takács
Serum 25-hydroxyvitamin D /25OHD/ levels in humans are determined primarily by environmental factors such as UV-B radiation and diet, including vitamin D intake. Although some genetic determinants of 25OHD levels have been shown, the magnitude of this association has not yet been clarified. The present study evaluates the genetic contribution to total- /t-25OHD/ and free-25OHD /f-25OHD/ in a representative sample of the Hungarian population (n = 462). The study was performed at the end of winter to minimize the effect of sunlight, which is a major determinant of serum vitamin D levels...
May 21, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29792930/functional-genomics-for-the-oleaginous-yeast-yarrowia-lipolytica
#7
Kurt Patterson, James Yu, Jenny Landberg, Ivan Chang, Farbod Shavarebi, Virginia Bilanchone, Suzanne Sandmeyer
Oleaginous yeasts are valuable systems for biosustainable production of hydrocarbon-based chemicals. Yarrowia lipolytica is one of the best characterized of these yeast with respect to genome annotation and flux analysis of metabolic processes. Nonetheless, progress is hampered by a dearth of genome-wide tools enabling functional genomics. In order to remedy this deficiency, we developed a library of Y. lipolytica insertion mutants via transposon mutagenesis. The Hermes DNA transposon was expressed to achieve saturation mutagenesis of the genome...
May 21, 2018: Metabolic Engineering
https://www.readbyqxmd.com/read/29792884/pharmacological-inhibition-of-dna-methylation-attenuates-pressure-overload-induced-cardiac-hypertrophy-in-rats
#8
Justus Stenzig, Yvonne Schneeberger, Alexandra Löser, Barbara S Peters, Andreas Schaefer, Rong-Rong Zhao, Shi Ling Ng, Grit Höppner, Birgit Geertz, Marc N Hirt, Wilson Tan, Eleanor Wong, Hermann Reichenspurner, Roger S-Y Foo, Thomas Eschenhagen
BACKGROUND: Heart failure is associated with altered gene expression and DNA methylation. De novo DNA methylation is associated with gene silencing, but its role in cardiac pathology remains incompletely understood. We hypothesized that inhibition of DNA methyltransferases (DNMT) might prevent the deregulation of gene expression and the deterioration of cardiac function under pressure overload (PO). To test this hypothesis, we evaluated a DNMT inhibitor in PO in rats and analysed DNA methylation in cardiomyocytes...
May 21, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29792868/ah6809-decreases-production-of-inflammatory-mediators-by-pge-2-ep2-camp-signaling-pathway-in-an-experimentally-induced-pure-cerebral-concussion-in-rats
#9
Ping Li, Hongyan Jiang, Haiying Wu, Deye Wu, Hengxi Li, Jianyun Yu, Jianghua Lai
Increasing evidence suggests that PGE2 metabolic pathway is involved in pathological changes of the secondary brain injury after traumatic brain injury. However, the underlying mechanisms, in particular, the correlation between various key enzymes and the brain injury, has remained to be fully explored. More specifically, it remains to be ascertained whether AH6809 (an EP2 receptor antagonist) would interfere with the downstream of the PGE2 , regulate the inflammatory mediators and improve neuronal damage in the hippocampus by PGE2 - EP2 - cAMP signaling pathway...
May 21, 2018: Brain Research
https://www.readbyqxmd.com/read/29792719/-sinusoidal-obstruction-syndrome-induced-by-monocrotaline-in-a-large-animal-experiment-a-pilot-study
#10
R Pálek, V Liška, V Třeška, J Rosendorf, M Emingr, V Tégl, A Králíčková, K Bajcurová, M Jiřík, Z Tonar
INTRODUCTION: Sinusoidal obstruction syndrome (SOS) is a disease which is caused by toxic injury to hepatic sinusoids. This syndrome is most frequently caused by myeloablative radiochemotherapy in patients before hematopoietic stem cells transplantation and also by oxaliplatin mainly in patients with colorectal liver metastases. The aim of this study was to establish a large animal model of SOS, which would enable further study of this disease and facilitate translation of experimental outcomes into human medicine...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29792717/postoperative-monitoring-of-colorectal-anastomosis-experimental-study
#11
J Kalvach, O Ryska, J Pazin, J Hadac, S Juhas, J Juhásová, J Martínek, M Ryska
INTRODUCTION: Inadequate blood supply is one of the major risk factors for colorectal anastomotic leak. Early postoperative detection of local ischemic changes can predict complicated healing and lead to better outcome. Microdialysis (MD) offers real-time evaluation of adequate bowel perfusion through monitoring of tissue metabolism. The aim of this study was to assess the feasibility of MD for early detection of ischemic changes in colorectal anastomosis. METHOD: Five pigs with end-to-end colorectal anastomosis were included...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29792528/dissociation-of-cerebrospinal-fluid-amyloid-%C3%AE-and-tau-levels-in-patients-with-prolonged-posttraumatic-disorders-of-consciousness
#12
Sergio Bagnato, Maria Andriolo, Cristina Boccagni, Antonino Sant'Angelo, Maria Enza D'Ippolito, Giuseppe Galardi
BACKGROUND: Traumatic brain injury (TBI) is a major risk factor for Alzheimer's disease (AD). Although the mechanisms that lead to AD after a TBI are unclear, we hypothesize that changes in amyloid-β (Aβ) metabolism and abnormal tau phosphorylation are reasonable candidates. OBJECTIVE: To investigate Aβ and tau dynamics in the chronic phase of TBI. METHODS: We evaluated Aβ1-42 , total tau (t-tau), and phosphorylated tau (p-tau) levels in the cerebrospinal fluid (CSF) of 15 patients who developed a prolonged disorder of consciousness after a severe TBI (mean time from TBI 271...
May 24, 2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29792508/effects-of-tgf-%C3%AE-overexpression-via-raav-gene-transfer-on-the-early-repair-processes-in-an-osteochondral-defect-model-in-minipigs
#13
Magali Cucchiarini, Ann-Kathrin Asen, Lars Goebel, Jagadeesh K Venkatesan, Gertrud Schmitt, David Zurakowski, Michael D Menger, Matthias W Laschke, Henning Madry
BACKGROUND: Application of the chondrogenic transforming growth factor beta (TGF-β) is an attractive approach to enhance the intrinsic biological activities in damaged articular cartilage, especially when using direct gene transfer strategies based on the clinically relevant recombinant adeno-associated viral (rAAV) vectors. PURPOSE: To evaluate the ability of an rAAV-TGF-β construct to modulate the early repair processes in sites of focal cartilage injury in minipigs in vivo relative to control (reporter lacZ gene) vector treatment...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29792375/knowledge-and-attitudes-of-family-doctors-dermatologists-and-endocrinologists-on-sun-exposure-and-vitamin-d
#14
Arif Abu-Abed, Said Azbarga, Roni Peleg
OBJECTIVES: Vitamin D is an important component of bone metabolism. Skin cells synthesize vitamin D when exposed to the sun. However, prolonged sun exposure damages the skin and increases the risk for skin cancer. The objective is to evaluate and compare the attitudes and recommendations of family doctors, dermatologists, and endocrinologists on exposure to the sun and vitamin D. METHODS: In a cross-sectional study, a questionnaire was completed by personal interview in a study population of 78 family doctors, 21 dermatologists, and 22 endocrinologists...
May 24, 2018: Postgraduate Medicine
https://www.readbyqxmd.com/read/29792311/pedf-regulates-plasticity-of-a-novel-lipid-mtoc-axis-in-prostate-cancer-associated-fibroblasts
#15
Francesca Nardi, Philip Fitchev, Omar E Franco, Jelena Ivanisevic, Adrian Scheibler, Simon W Hayward, Charles B Brendler, Michael A Welte, Susan E Crawford
Prostate tumors make metabolic adaptations to ensure adequate energy and amplify cell cycle regulators such as centrosomes to sustain their proliferative capacity. It is not known whether cancer associated fibroblasts (CAFs) undergo metabolic re-programming. We postulated that CAFs augment lipid storage and amplify centrosomal or non-centrosomal microtubule organizing centers (MTOCs) through a pigment epithelium-derived factor (PEDF)-dependent lipid-MTOC signaling axis. Primary normal human prostate fibroblasts (NFs) and CAFs were evaluated for lipid content, triacylglycerol-regulating proteins, MTOC number and distribution...
May 23, 2018: Journal of Cell Science
https://www.readbyqxmd.com/read/29792156/design-synthesis-and-biological-evaluation-of-1h-1-2-3-triazole-linked-1h%C3%A2-dibenzo-b-h-xanthenes-as-inductors-of-ros-mediated-apoptosis-in-the-breast-cancer-cell-line-mcf-7
#16
Carolina S Bortolot, Luana da S M Forezi, Roberta K F Marra, Marcelo I P Reis, Barbara V F E Sa, Ricardo Imbroisi Filho, Zeinab Ghasemishahrestani, Mauro Sola-Penna, Patricia Zancan, Vitor F Ferreira, Fernando de C da Silva
BACKGROUND: Low molecular weight 1,2,3-triazoles and naphthoquinones are endowed with various types of biological activity, such as against cancer, HIV and bacteria. However, in some cases, the conjugation of these two nuclei considerably increases their biological activities Objective: In this work, we decided to study the synthesis and screening of bis-naphthoquinones and xanthenes tethered to 1,2,3-triazoles against cancer cell lines, specifically the human breast cancer cell line MCF-7...
May 23, 2018: Medicinal Chemistry
https://www.readbyqxmd.com/read/29792136/zinc-dependent-histone-deacetylase-inhibitors-in-cancer-therapeutics-recent-update
#17
Panagiotis I Georgianos, Maria Divani, Theodoros Eleftheriadis, Peter R Mertens, Vassilios Liakopoulos
BACKGROUND: Despite optimal management of diabetic kidney disease (DKD) with intensive glycemic control and administration of agents blocking the renin-angiotensin-aldosterone-system, the residual risk for nephropathy progression to end-stage-renal-disease (ESRD) remains high. Sodium-glucose co-transporter type 2 (SGLT-2)-inhibitors represent a newly-introduced anti-diabetic drug class with pleiotropic actions extending above their glucose-lowering efficacy. Herein, we provide an overview of preclinical and clinical-trial evidence supporting a protective effect of SGLT-2 inhibitors on DKD...
May 23, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29791666/prevalence-of-polymorphisms-in-the-ankk1-drd2-drd3-genes-and-metabolic-syndrome-in-refractory-schizophrenia
#18
Jeizziani Aparecida Ferreira Pinto, Pedro Henrique Batista de Freitas, Fernanda Daniela Dorneles Nunes, Paulo Afonso Granjeiro, Luciana Lara Dos Santos, Richardson Miranda Machado
OBJECTIVE: to estimate the prevalence of TaqIA, -141C and rs6280 polymorphisms of the ANKK1, DRD2 and DRD3 genes and evaluate their association with the occurrence of metabolic syndrome in patients with refractory schizophrenia. METHOD: cross-sectional study conducted in the Extended Western Region of Minas Gerais, with refractory schizophrenic patients using the antipsychotic clozapine. Sociodemographic, clinical, anthropometric, biochemical and genetic data were collected...
2018: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/29791653/waist-circumference-is-an-effect-modifier-of-the-association-between-bone-mineral-density-and-glucose-metabolism
#19
Lygia N Barroso, Dayana R Farias, Marcia Soares-Mota, Heloisa Bettiol, Marco Antônio Barbieri, Milton Cesar Foss, Antônio Augusto M da Silva, Gilberto Kac
OBJECTIVE: The role of bone markers on insulin resistance (IR) remains controversial. The objective of this study is to evaluate the association between bone mineral density (BMD) and glucose metabolism and investigate if visceral hyperadiposity, evaluated by waist circumference (WC), is an effect modifier of this association. SUBJECTS AND METHODS: Cross-sectional analysis with 468 young adults from the fourth follow-up of the 1978/79 Ribeirão Preto prospective birth cohort, Brazil...
May 17, 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29791652/inflammatory-myopathy-in-the-context-of-an-unusual-overlapping-laminopathy
#20
Cristina Guillín-Amarelle, Sofía Sánchez-Iglesias, Antonio Mera, Elena Pintos, Ana Castro-Pais, Leticia Rodríguez-Cañete, Julio Pardo, Felipe F Casanueva, David Araújo-Vilar
Laminopathies are genetic disorders associated with alterations in nuclear envelope proteins, known as lamins. The LMNA gene encodes lamins A and C, and LMNA mutations have been linked to diseases involving fat (type 2 familial partial lipodystrophy [FPLD2]), muscle (type 2 Emery-Dreifuss muscular dystrophy [EDMD2], type 1B limb-girdle muscular dystrophy [LGMD1B], and dilated cardiomyopathy), nerves (type 2B1 Charcot-Marie-Tooth disease), and premature aging syndromes. Moreover, overlapping syndromes have been reported...
May 17, 2018: Archives of Endocrinology and Metabolism
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