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https://www.readbyqxmd.com/read/28545081/perturbed-adipose-tissue-hydrogen-peroxide-metabolism-in-centrally-obese-men-association-with-insulin-resistance
#1
May G Akl, Eman Fawzy, Maha Deif, Ayman Farouk, Amany K Elshorbagy
OBJECTIVE: Although adipose tissue hydrogen peroxide (H2O2) and its metabolizing enzymes have been linked to obesity and insulin resistance in animal studies, this relation remains to be evaluated in humans. METHODS: Non-diabetic men (N = 43, median age, 49 (37, 54 y)) undergoing abdominal surgeries were studied. Participants were classified by body mass index (BMI) into normal-weight (N = 19), or overweight/obese (Ow/Ob; BMI ≥25; N = 24). Centrally obese men were identified by waist-height ratio ≥0...
2017: PloS One
https://www.readbyqxmd.com/read/28543989/brain-structural-alterations-in-obese-children-with-and-without-prader-willi-syndrome
#2
Mingze Xu, Yi Zhang, Karen M von Deneen, Huaiqiu Zhu, Jia-Hong Gao
Prader-Willi syndrome (PWS) is a genetic imprinting disorder that is mainly characterized by hyperphagia and childhood obesity. Previous neuroimaging studies revealed that there is a significant difference in brain activation patterns between obese children with and without PWS. However, whether there are differences in the brain structure of obese children with and without PWS remains elusive. In the current study, we used T1-weighted and diffusion tensor magnetic resonance imaging to investigate alterations in the brain structure, such as the cortical volume and white matter integrity, in relation to this eating disorder in 12 children with PWS, 18 obese children without PWS (OB) and 18 healthy controls...
May 23, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28535320/effectiveness-of-a-labor-cervical-exam-model-in-family-medicine-and-ob-gyn-residents
#3
Joshua F Nitsche, Nora F Fino, Jose M Palomo, Abraham Portillo Perdomo, Brian C Brost
BACKGROUND AND OBJECTIVES: Labor cervical exam accuracy is an essential skill for family medicine and OB-GYN residents to master. To determine the effectiveness of simulation on labor cervical exam training, family medicine and OB-GYN residents were trained using a self-constructed PVC pipe-based cervical exam model during a short and intensive simulation workshop or "boot camp." METHODS: A task trainer was constructed that allows for the blind examination of cervical dilation and effacement...
May 2017: Family Medicine
https://www.readbyqxmd.com/read/28527804/nutritive-value-and-fermentation-characteristics-of-alfalfa-mixed-grass-forage-wrapped-with-minimal-stretch-film-layers-and-stored-for-different-lengths-of-time
#4
W K Coblentz, R K Ogden, M S Akins, E A Chow
A key aspect of managing baled silages is to quickly achieve and then rigorously maintain anaerobic conditions within the silage mass. The concept of inserting an O2-limiting barrier (OB) into plastic commercial silage wraps has been evaluated previously, yielding mixed or inconclusive results. Our objective for this study was to maximize the challenge to a commercial polyethylene bale wrap, or the identical wrap containing an OB, by using minimal plastic (4 layers), and then extending storage periods as long as 357 d...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28525324/in-vitro-effect-of-leptin-on-anterior-pituitary-cells-lh-secretory-activity-during-early-pregnancy-in-pig
#5
G Siawrys, A Gajewska
Leptin modulates reproductive activity but its potential influence on LH secretion from anterior pituitary (AP) cells during implantation period in pigs (days 14-16 of pregnancy) remained unexplored. This study focused on determination whether leptin affects basal and GnRH-induced LH secretion and intracellular accumulation and whether leptin receptor (OB-Rb) mRNA is expressed in the AP gland during implantation in pigs. Four individual AP glands were developed into separate primary cultures. 2×105 cells/ml were preincubated (72 h) and next, for 3...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28523178/one-successful-primary-closure-case-of-bronchopleural-fistula-after-pneumonectomy-by-a-new-method
#6
Zhenliang Shi, Yijun Xu, Zheng Wang, Xun Zhang
One case of successful primary closure of a bronchopleural fistula (BPF) after right pneumonectomy by sealing from both inside the chest cavity and bronchus is reported. The patient was a 47-year-old man who underwent right pneumonectomy due to right lung total collapse and atelectasis which was long-term compressed by a huge cyst inside the right chest cavity. A BPF was found on day 20 after surgery. A thoracotomy approach was performed because it was difficult to find an appropriate location for close drainage...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522862/expression-profiling-of-mrnas-and-long-non-coding-rnas-in-aged-mouse-olfactory-bulb
#7
Ming Wang, Wei Liu, Jian Jiao, Jingyun Li, Chengshuo Wang, Luo Zhang
Age-related decline in olfactory function affects the quality of life in elderly people and also potentially represents an early clinical symptom of neurodegenerative disorder. Olfactory bulb (OB) plays a central role in olfactory information transmitting and signal processing. The mechanisms underlying this impairment remain unclear. In the current study, microarray was used to investigate differentially expressed protein coding genes (PCGs) and long non-coding RNAs (lncRNAs) in OBs from three groups of mice of different ages (2 months-old young adults, 6 months-old mature adults and 20 months-old aged adults), for their potential roles in olfactory impairment...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28517970/osteoblast-progenitors-enhance-osteogenic-differentiation-of-periodontal-ligament-stem-cells
#8
Miao Yu, Limei Wang, Pengfei Ba, Linxia Li, Long Sun, Xiaoqi Duan, Pishan Yang, Chengzhe Yang, Qinfeng Sun
BACKGROUND: Osteoblasts and periodontal ligament stem cells (PDLSCs) play an important role in maintaining physiological function of periodontal tissues and participating in periodontal regeneration. Elucidation of interactions between osteoblasts and PDLSCs will aid understanding of periodontal regeneration mechanisms. This study aimed to determine whether pre-osteoblasts can promote osteoblastic/cementoblastic differentiation of PDLSCs. METHODS: PDLSCs were cultured alone (control group), or co-cultured indirectly with human gingival fibroblasts (HGFs) (HGFs group) or MC3T3-E1 cells (OB groups)...
May 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28515126/radiomanganese-pet-detects-changes-in-functional-%C3%AE-cell-mass-in-mouse-models-of-diabetes
#9
Reinier Hernandez, Stephen A Graves, Trillian Gregg, Halena R VanDeusen, Rachel J Fenske, Haley N Wienkes, Christopher G England, Hector F Valdovinos, Justin J Jeffery, Todd E Barnhart, Gregory W Severin, Robert J Nickles, Michelle E Kimple, Matthew J Merrins, Weibo Cai
The noninvasive measurement of functional β-cell mass would be clinically valuable for monitoring the progression of type 1 and type 2 diabetes, as well as the viability of transplanted insulin-producing cells. Although previous work employing magnetic resonance imaging has shown promise for functional β-cell mass determination through voltage-dependent Ca(2+) channel (VDCC)-mediated internalization of Mn(2+), the clinical utility of this technique is limited by the cytotoxic levels of Mn(2+) contrast agent...
May 17, 2017: Diabetes
https://www.readbyqxmd.com/read/28513622/human-milk-insulin-is-related-to-maternal-plasma-insulin-and-bmi-but-other-components-of-human-milk-do-not-differ-by-bmi
#10
B E Young, Z Patinkin, C Palmer, B de la Houssaye, L A Barbour, T Hernandez, J E Friedman, N F Krebs
BACKGROUND/OBJECTIVES: The impact of maternal BMI and insulin sensitivity on bioactive components of human milk (HM) is not well understood. As the prevalence of obesity and diabetes rises, it is increasingly critical that we understand how maternal BMI and hormones associated with metabolic disease relate to concentrations of bioactive components in HM. SUBJECTS/METHODS: This longitudinal cohort design followed 48 breastfeeding mothers through the first four months of lactation, collecting fasting morning HM samples at 2-weeks and 1, 2, 3 and 4-months, and fasting maternal blood at 2-weeks and 4-months...
May 17, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28513454/lysosomal-dysfunction-in-neurodegenerative-diseases
#11
Klaudia Tomala, Bożena Gabryel
Dane literaturowe z ostatnich lat jednoznacznie wskazują na udział lizosomów w programowanej śmierci komórki. Dysfunkcje lizosomów upośledzają fuzję autofagosomów z lizosomami, co prowadzi do wakuolizacji cytoplazmy. Obecność wakuoli autofagalnych obładowanych uszkodzonymi organellami i nieprawidłowymi białkami jest cechą charakterystyczną wielu chorób neurodegeneracyjnych. Agregacja niezdegradowanego materiału zaburza homeostazę komórki powodując śmierć neuronu w wyniku apoptozy i/lub nekrozy...
May 4, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28511904/analysis-of-the-association-of-leptin-and-adiponectin-concentrations-with-metabolic-syndrome-in-children-results-from-the-idefics-study
#12
A Nappo, E M González-Gil, W Ahrens, K Bammann, N Michels, L A Moreno, Y Kourides, L Iacoviello, S Mårild, A Fraterman, D Molnàr, T Veidebaum, A Siani, P Russo
BACKGROUND AND AIMS: Adipokines may play a role in the pathogenesis of the metabolic syndrome (MetS) in children. We aimed to evaluate the association of leptin, adiponectin, and its ratio (L/A ratio) with the metabolic syndrome (MetS) in a subsample of the IDEFICS (Identification and prevention of Dietary- and lifestyle-induced health EFfects In Children and infantS) cohort. METHODS AND RESULTS: Leptin, adiponectin and MetS parameters were measured in a subsample of 1253 children (3-9...
April 19, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28508609/oral-health-in-children-with-obesity-or-diabetes-mellitus
#13
Fima Lifshitz, Patricia Lucia Casavalle, Noemí Bordoni, Patricia Noemi Rodriguez, Silvia Maria Friedman
Oral health status must be considered in the care of children with obesity (OB) and diabetes mellitus (DM). The health of these patients' mouths may have significant effects on their overall health and evolution of their disease. Here we address periodontal disease (PD) and dental caries (DC), since these are two of the most common chronic diseases affecting OB and DM patients. OB plays a plausible role in the development of PD. Both overall OB and central adiposity are associated with increased hazards of gingivitis and its progression to PD...
December 2016: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28508477/the-novel-intracellular-protein-creg-inhibits-hepatic-steatosis-obesity-and-insulin-resistance
#14
Quan-Yu Zhang, Ling-Ping Zhao, Xiao-Xiang Tian, Cheng-Hui Yan, Yang Li, Yan-Xia Liu, Pi-Xiao Wang, Xiao-Jing Zhang, Ya-Ling Han
Cellular repressor of E1A-stimulated genes (CREG), a novel cellular glycoprotein, has been identified as a suppressor of various cardiovascular diseases (CVDs) because of its capacity to reduce hyperplasia, maintain vascular homeostasis, and promote endothelial restoration. However, the effects and mechanism of CREG in metabolic disorder and hepatic steatosis remain unknown. Here, we report that hepatocyte-specific CREG deletion dramatically exacerbates high fat diet (HFD) and leptin deficiency-induced (ob/ob) adverse effects such as obesity, hepatic steatosis and metabolic disorders, whereas a beneficial effect is conferred by CREG overexpression...
May 15, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28506466/impaired-steroidogenesis-in-the-testis-of-leptin-deficient-mice-ob-ob
#15
Fabiane Ferreira Martins, Marcia Barbosa Aguila, Carlos Alberto Mandarim-de-Lacerda
The obesity and its comorbidities, including resistance to leptin, impacts the reproductive function. Testes express leptin receptors in the germ cells and Leydig cells. Then, leptin-deficient animals are obese and infertile. We aimed to evaluate the structure and steroidogenic pathway of the testis of deficient leptin mice. Three months old male C57BL/6 mice (wild-type, WT) and deficient leptin (ob/ob) mice had their testes dissected and prepared for analyses. Compared to the WT group, the ob/ob group showed a greater body mass with smaller testes, and alterations in the germinative epithelium: fewer spermatogonia, spermatocytes, and spermatids...
May 13, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28505543/chronic-administration-of-apple-polyphenols-ameliorates-hyperglycaemia-in-high-normal-and-borderline-subjects-a-randomised-placebo-controlled-trial
#16
Toshihiko Shoji, Mitsuhiro Yamada, Tomisato Miura, Kazuaki Nagashima, Kasane Ogura, Nobuya Inagaki, Mari Maeda-Yamamoto
AIMS: We previously reported that apple polyphenols (AP) and their major active components, procyanidins, had beneficial effects on glucose homeostasis and diabetes in diabetic ob/ob mice. The present study was performed to evaluate the effects of chronic AP administration on glucose tolerance in high-normal and borderline human subjects. METHODS: Subjects (n=65) with a fasting plasma glucose (FPG) level of 100-125mg/dL determined during a recent health check-up were randomised to receive tablets containing AP (600mg/day) or placebo tablets for 12weeks in a double-blinded, placebo-controlled clinical trial...
May 2, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28501498/the-role-of-sleep-in-the-plasticity-of-the-olfactory-system
#17
REVIEW
Masahiro Yamaguchi
The central olfactory system mediates a variety of odor-guided behaviors crucial for maintenance of animal life. The olfactory neural circuit must be highly plastic to ensure that it responds appropriately to changing odor circumstances. Recent studies have revealed that the processing of odor information changes drastically during waking and sleep and that neural activity during sleep plays pivotal roles in the structural reorganization and functional plasticity of the olfactory system. While olfactory information from the external world is efficiently transferred to the olfactory cortex (OC) via the olfactory bulb (OB) during waking, this information flow is attenuated during slow-wave sleep: during slow-wave sleep, the OC neurons exhibit synchronous discharges without odor input under the entrainment of sharp waves in the local field potential recording...
May 10, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28499035/genetic-and-biological-characterization-of-four-nucleopolyhedrovirus-isolates-collected-in-mexico-for-the-control-of-spodoptera-exigua-lepidoptera-noctuidae
#18
N Zamora-Avilés, R Murillo, R Lasa, S Pineda, J I Figueroa, A Bravo-Patiño, O Díaz, J L Corrales, A M Martínez
This study describes four multiple nucleocapsid nucleopolyhedrovirus isolates recovered from infected larvae of beet armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae), on crops in two different geographical regions of Mexico. Molecular and biological characterization was compared with characterized S. exigua multiple nucleopolyhedrovirus (SeMNPV) isolates from the United States (SeUS1 and SeUS2) and Spain (SeSP2). Restriction endonuclease analysis of viral DNA confirmed that all Mexican isolates were SeMNPV isolates, but molecular differences between the Mexican and the reference isolates were detected using PCR combined with restriction fragment length polymorphism (RFLP)...
May 11, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28498436/exposure-to-a-chronic-high-fat-diet-promotes-atrial-structure-and-gap-junction-remodeling-in-rats
#19
Tianyu Meng, Gong Cheng, Yuejiao Wei, Shuting Ma, Yongrong Jiang, Jine Wu, Xin Zhou, Chaofeng Sun
Obesity has been demonstrated to be linked to atrial fibrillation (AF) with atrial enlargement and tissue fibrosis. Long-term high calorie intake is the main reason for the prevalence of obesity. To investigate the possible causes of AF, such as chronic high-fat diet (HFD), and to identify the underlying mechanisms, the present study analyzed a variety of structural and gap junctional electrophysiological alterations in the atria of female rats fed an HFD. After consistent HFD feeding of female rats for 12 weeks, hematoxylin and eosin (H&E) and Masson's staining, RT-qPCR, western blotting, immunofluorescence and TUNEL staining were performed...
May 9, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28496206/wisp1-ccn4-inhibits-adipocyte-differentiation-through-repression-of-ppar%C3%AE-activity
#20
Nathalie Ferrand, Véronique Béreziat, Marthe Moldes, Maurice Zaoui, Annette K Larsen, Michèle Sabbah
WISP1 (Wnt1-inducible signaling pathway protein-1, also known as CCN4) is a member of the CCN family able to mediate cell growth, transformation and survival in a tissue-specific manner. Here, we report that WISP1 expression was highly increased in preadipocytes and decreased during adipocyte differentiation. Moreover, we observed an increase in WISP1 gene expression in adipose tissue from both diet-induced and leptin-deficient ob/ob obese mice, suggesting that WISP1 could be involved in the pathophysiological onset of obesity...
May 11, 2017: Scientific Reports
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