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https://www.readbyqxmd.com/read/28930194/developmental-programming-of-obesity-and-liver-metabolism-by-maternal-perinatal-nutrition-involves-the-melanocortin-system
#1
Paul Cordero, Jiawei Li, Vi Nguyen, Joaquim Pombo, Nuria Maicas, Marco Novelli, Paul D Taylor, Anne-Maj Samuelsson, Manlio Vinciguerra, Jude A Oben
Maternal obesity predisposes offspring to metabolic dysfunction and Non-Alcoholic Fatty Liver Disease (NAFLD). Melanocortin-4 receptor (Mc4r)-deficient mouse models exhibit obesity during adulthood. Here, we aim to determine the influence of the Mc4r gene on the liver of mice subjected to perinatal diet-induced obesity. Female mice heterozygous for Mc4r fed an obesogenic or a control diet for 5 weeks were mated with heterozygous males, with the same diet continued throughout pregnancy and lactation, generating four offspring groups: control wild type (C_wt), control knockout (C_KO), obese wild type (Ob_wt), and obese knockout (Ob_KO)...
September 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28926971/mini-review-the-contribution-of-intermediate-phenotypes-to-gxe-effects-on-disorders-of-body-composition-in-the-new-omics-era
#2
REVIEW
Edna J Nava-Gonzalez, Esther C Gallegos-Cabriales, Irene Leal-Berumen, Raul A Bastarrachea
Studies of gene-environment (GxE) interactions describe how genetic and environmental factors influence the risk of developing disease. Intermediate (molecular or clinical) phenotypes (IPs) are traits or metabolic biomarkers that mediate the effects of gene-environment influences on risk behaviors. Functional systems genomics discovery offers mechanistic insights into how DNA variations affect IPs in order to detect genetic causality for a given disease. Disorders of body composition include obesity (OB), Type 2 diabetes (T2D), and osteoporosis (OSTP)...
September 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28925407/foxc2-coordinates-inflammation-and-browning-of-white-adipose-by-leptin-stat3-prdm16-signal-in-mice
#3
L Gan, Z Liu, F Feng, T Wu, D Luo, C Hu, C Sun
AIMS: The objective of this study is to characterize the relationship between forkhead box C2 protein (Foxc2) and leptin under adipose inflammatory response. METHODS: Lipopolysaccharide (LPS)-induced inflammatory model was conducted. Data from wild-type and ob/ob mice were used to compare the alternative role of leptin on Foxc2-mediated inflammation and browning. Transcriptional regulation and protein-protein interaction were analyzed by bioinformatics and proved by chromatin immunoprecipitation and co-immunoprecipitation experiment...
August 23, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28923997/the-evolution-of-massive-stars-bridging-the-gap-in-the-local-group
#4
REVIEW
Philip Massey, Kathryn F Neugent, Emily M Levesque
The nearby galaxies of the Local Group can act as our laboratories in helping to bridge the gap between theory and observations. In this review, we will describe the complications of identifying samples of OB stars, yellow and red supergiants, and Wolf-Rayet stars, and what we have so far learned from these studies.This article is part of the themed issue 'Bridging the gap: from massive stars to supernovae'.
October 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28923347/sulforaphane-improves-disrupted-er-mitochondria-interactions-and-suppresses-exaggerated-hepatic-glucose-production
#5
Emily Tubbs, Annika S Axelsson, Guillaume Vial, Claes B Wollheim, Jennifer Reuisset, Anders H Rosengren
AIMS: Exaggerated hepatic glucose production is one of the hallmarks of type 2 diabetes. Sulforaphane (SFN) has been suggested as a new potential anti-diabetic compound. However, the effects of SFN in hepatocytes are yet unclear. Accumulating evidence points to the close structural contacts between the ER and mitochondria, known as mitochondria-associated ER membranes (MAMs), as important hubs for hepatic metabolism. We wanted to investigate whether SFN could affect hepatic glucose production and MAMs...
September 16, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28922318/vaccination-during-pregnancy-first-line-of-defense-for-expecting-mothers-and-vulnerable-young-infants
#6
Casidhe-Nicole Bethancourt, Tiffany L Wang, Joseph A Bocchini
PURPOSE OF REVIEW: Maternal vaccination is a well-tolerated and effective way to protect mothers, their developing fetuses, and their young infants from infectious diseases. Although influenza vaccine and diphtheria, tetanus, and acellular pertussis (Tdap) vaccine are recommended for all pregnant women, uptake rates in the United States remain low. This review will focus on the rationale, scientific evidence, and perceptions of vaccination during pregnancy. RECENT FINDINGS: Recent studies show that administration of influenza and Tdap vaccines during pregnancy is well tolerated and provides protection to the pregnant woman, her fetus, and young infant...
September 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28920084/effects-of-methamphetamine-on-locomotor-activity-and-thalamic-gene-expression-in-leptin-deficient-obese-mice
#7
Betina González, Candela González, Verónica Bisagno, Francisco J Urbano
Leptin is an adipose-derived hormone that regulates energy balance. Leptin receptors are expressed in extrahypothalamic sites and several reports showed that leptin can influence feeding and locomotor behavior via direct actions on dopaminergic neurons. The leptin deficient mouse (ob/ob) has been used as an animal model of blunted leptin action, and presents with obesity and mild type 2 diabetes. We used ob/ob mice to study the effect of repeated 7-day methamphetamine (METH) administration analyzing locomotion, behavioral sensitization, and somatosensory thalamic mRNA expression of voltage-gated calcium channels and glutamatergic receptors using RT-PCR...
July 2017: Translational Brain Rhythmicity
https://www.readbyqxmd.com/read/28919382/overweight-and-obesity-in-new-caledonian-adults-results-from-measured-and-adjusted-self-reported-anthropometric-data
#8
Philippe Corsenac, Isabella Annesi-Maesano, Damian Hoy, Adam Roth, Bernard Rouchon, Isabelle Capart, Richard Taylor
AIMS: To estimate the overweight (OW) and obesity (Ob) prevalence and associated socio-demographic risk factors in New Caledonian adults aged 18-67years. METHODS: From a randomly selected cross-sectional population survey, self-reported (n=2513) and measured (n=736) height and weight data were collected. Separate linear regression analyses for measured weight and height were performed, using cases with both self-reported weight and height and socio-demographic variables...
June 22, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28918258/olfactory-function-in-an-excitotoxic-model-for-secondary-neuronal-degeneration-role-of-dopaminergic-interneurons
#9
Concepció Marin, Sara Laxe, Cristobal Langdon, Joan Berenguer, Eduardo Lehrer, Franklin Mariño-Sánchez, Isam Alobid, Montserrat Bernabeu, Joaquim Mullol
Secondary neuronal degeneration (SND) occurring in Traumatic brain injury (TBI) consists in downstream destructive events affecting cells that were not or only marginally affected by the initial wound, further increasing the effects of the primary injury. Glutamate excitotoxicity is hypothesized to play an important role in SND. TBI is a common cause of olfactory dysfunction that may be spontaneous and partially recovered. The role of the glutamate excitotoxicity in the TBI-induced olfactory dysfunction is still unknown...
September 13, 2017: Neuroscience
https://www.readbyqxmd.com/read/28917718/olfactory-toxicity-in-rats-following-manganese-chloride-nasal-instillation-a-pilot-study
#10
Melanie L Foster, Deepa B Rao, Taylor Francher, Samantha Traver, David C Dorman
Following inhalation, manganese travels along the olfactory nerve from the olfactory epithelium (OE) to the olfactory bulb (OB). Occupational exposure to inhaled manganese is associated with changes in olfactory function. This pilot study evaluated two related hypotheses: (a) intranasal manganese administration increases OE and OB manganese concentrations; and (b) intranasal manganese exposure impairs performance of previously trained rats on a go-no-go olfactory discrimination (OD) task. Male Fischer 344 rats were trained to either lever press ("go") in response to a positive conditioned stimulus (CS+: vanillin) or to do nothing ("no go") when a negative conditioned stimulus (CS-: amyl acetate) was present...
September 13, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28916463/penile-prosthesis-implantation-in-priapism
#11
REVIEW
Ömer Barış Yücel, Yaşar Pazır, Ateş Kadıoğlu
INTRODUCTION: Priapism is defined as a full or partial erection lasting longer than 4 hours after sexual stimulation and orgasm or unrelated to sexual stimulation. The main goal of priapism management is to resolve the episode immediately to preserve erectile function and penile length. Corporal smooth muscle necrosis is likely to have already occurred, and medically refractory erectile dysfunction is expected in patients with a protracted episode. Penile prosthesis implantation (PPI) in the early or late phase of priapism can restore erectile function...
September 12, 2017: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/28912588/lipopolysaccharide-initiated-persistent-rhinitis-causes-gliosis-and-synaptic-loss-in-the-olfactory-bulb
#12
Sanae Hasegawa-Ishii, Atsuyoshi Shimada, Fumiaki Imamura
The olfactory mucosa (OM) is exposed to environmental agents and therefore vulnerable to inflammation. To examine the effects of environmental toxin-initiated OM inflammation on the olfactory bulb (OB), we induced persistent rhinitis in mice and analyzed the spatial and temporal patterns of histopathological changes in the OM and OB. Mice received unilateral intranasal administration of lipopolysaccharide (LPS) or saline three times per week, and were immunohistologically analyzed at 1, 3, 7, 14 and 21 days after the first administration...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911136/protein-rich-food-ingestion-stimulates-mitochondrial-protein-synthesis-in-sedentary-young-adults-of-different-bmis
#13
Joseph W Beals, Richard W A Mackenzie, Stephan van Vliet, Sarah K Skinner, Brandon A Pagni, Grace M Niemiro, Alexander V Ulanov, Zhong Li, Anna C Dilger, Scott A Paluska, Michael De Lisio, Nicholas A Burd
Context: Excess fat mass may diminish the anabolic potency of protein-rich food ingestion to stimulate muscle protein subfractional synthetic responses. However, the impact of adiposity on mitochondrial protein synthesis (MPS) rates after protein-rich food ingestion has not been thoroughly examined in vivo in humans. Objective: We compared basal and postprandial MPS and markers of muscle inflammation [toll-like receptor 4 (TLR4) and myeloid differentiation primary response protein 88 (MyD88) protein content] in young adults with different body mass indices (BMIs)...
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28904203/three-conserved-regions-in-baculovirus-sulfhydryl-oxidase-p33-are-critical-for-enzymatic-activity-and-function
#14
Wenhua Kuang, Huanyu Zhang, Manli Wang, Ning-Yi Zhou, Fei Deng, Hualin Wang, Peng Gong, Zhihong Hu
Baculoviruses encode a conserved sulfhydryl oxidase P33, which is necessary for budded virus (BV) production and multi-nucleocapsid occlusion-derived virus (ODV) formation. Here, the structural and functional relationship of P33 was revealed by X-ray crystallography, site-directed mutagenesis, and functional analysis. Based on crystallographic characterization and structural analysis, a series of P33 mutants within three conserved regions, i.e. the active site, dimer interface, and the R127-E183 salt bridge, were constructed...
September 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28898612/-paediatric-invasive-pneumococcal-disease-before-universal-vaccination-1995-2015
#15
Muriel Ferreira, Henrique Oliveira, Nuno Costa Silva, Luís Januário, Fernanda Rodrigues
INTRODUCTION: Pneumococcal conjugate vaccine was introduced in the private market in Portugal in 2001, reaching over the years a moderately high coverage. In July 2015, it was included in the National Immunisation Program. The aim of this study was to characterize invasive pneumococcal disease in a pediatric hospital before universal use of the vaccine. MATERIAL AND METHODS: Retrospective analysis of medical records of all children with Streptococcus pneumoniae identified by culture and/or molecular biology (available since 2008), in products obtained from sterile sites, from January 1995 to June 2015...
June 30, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28895586/maresin-1-mitigates-liver-steatosis-in-ob-ob-and-diet-induced-obese-mice
#16
L M Laiglesia, S Lorente-Cebrián, L Martínez-Fernández, N Sáinz, P L Prieto-Hontoria, M A Burrell, C M Rodríguez-Ortigosa, J A Martínez, M J Moreno-Aliaga
BACKGROUND/OBJECTIVES: The aim of this study was to characterize the effects of Maresin 1 (MaR1) in obesity-related liver steatosis and the mechanisms involved. METHODS: MaR1 effects on fatty liver disease were tested in ob/ob (2-10 μg/kg i.p., 20 days) and in diet-induced obese (DIO) mice (2 μg/kg, i.p., or 50 μg/kg, oral gavage for 10 days), as well as in cultured hepatocytes. RESULTS: In ob/ob mice, MaR1 reduced liver triglycerides (TG) content, fatty acid synthase (FAS) and stearoyl-CoA desaturase-1 protein expression, while increased acetyl-CoA carboxylase (ACC) phosphorylation and LC3II protein expression, in parallel with a drop in p62 levels...
September 12, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28893589/leptin-status-alters-buprenorphine-induced-antinociception-in-obese-mice-with-dysfunctional-leptin-receptors
#17
Zachary Glovak, Sara Mihalko, Helen A Baghdoyan, Ralph Lydic
Buprenorphine is an opiate used for pain management and to treat opiate addiction. The cytokine leptin can modulate nociception, but the extent to which buprenorphine-induced antinociception varies as a function of leptin signaling has not been characterized. Four congenic mouse lines with phenotypes that include differences in body weight and leptin status were used to test the hypothesis that the antinociceptive effects of buprenorphine vary as function of sex and leptin signaling. Each mouse line was comprised of males (n=12) and females (n=12) for a total of 96 animals...
September 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28892841/movement-of-traditional-fecal-indicator-bacteria-and-source-tracking-targets-through-septic-drainfields
#18
Hannah Billian, Leigh-Anne Krometis, Theresa Thompson, Charles Hagedorn
The past three decades' data on outbreaks in the United States indicate that homes dependent on untreated groundwater (e.g. wells) for household drinking water that are also reliant on onsite treatment of household wastewater (e.g. septic systems) may be at greater risk for waterborne disease. While groundwater quality monitoring to protect public health has traditionally focused on the detection of fecal indicator bacteria, the application of emerging source tracking strategies may offer a more efficient means to identify pollution sources and effective means of remediation...
September 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28891358/defensive-medicine-among-obstetricians-and-gynaecologists-in-turkey
#19
Mert Küçük
In recent years, there has been a remarkable increase in medical malpractice litigations against OB/GYNs in Turkey and globally. This high litigation atmosphere may have changed attitudes, behaviour and practice of OB/GYNs. In the current study, opinions and attitudes of OB/GYNs regarding defensive medicine and to what extent they practice it were investigated. One hundred and eight OB/GYNs participated in the study. All participants found obstetrics and gynaecology riskier when compared with other medical branches and reported that they were increasingly practising defensive medicine...
September 11, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28891045/a-critical-period-for-the-trophic-actions-of-leptin-on-agrp-neurons-in-the-arcuate-nucleus-of-the-hypothalamus
#20
Anna Kamitakahara, Karine Bouyer, Chien-Hua Wang, Richard Simerly
In the developing hypothalamus, the fat-derived hormone leptin stimulates the growth of axons from the arcuate nucleus of the hypothalamus (ARH) to other regions that control energy balance. These projections are significantly reduced in leptin deficient (Lep(ob/ob) ) mice and this phenotype is largely rescued by neonatal leptin treatments. However, treatment of mature Lep(ob/ob) mice is ineffective, suggesting that the trophic action of leptin is limited to a developmental critical period. To temporally delineate closure of this critical period for leptin-stimulated growth, we treated Lep(ob/ob) mice with exogenous leptin during a variety of discrete time periods, and measured the density of Agouti-Related Peptide (AgRP) containing projections from the ARH to the ventral part of the dorsomedial nucleus of the hypothalamus (DMHv), and to the medial parvocellular part of the paraventricular nucleus (PVHmp)...
September 10, 2017: Journal of Comparative Neurology
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