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https://www.readbyqxmd.com/read/28647583/the-temporal-expression-of-adipokines-during-spinal-fusion
#1
Sohrab Virk, Alicia L Bertone, Hayam Hamaz Hussein, Jeffrey M Toth, Mari Kaido, Safdar Khan
BACKGROUND CONTEXT: Adipokines are secreted by white adipose tissue and have been associated with fracture healing. Our goal was to report the temporal expression of adipokines during spinal fusion in an established rabbit model. PURPOSE: Our goal was to report the temporal expression of adipokines during spinal fusion in an established rabbit model. STUDY DESIGN: Laboratory animal model METHODS: New Zealand white rabbits were assigned to either sham surgery (n=2), unilateral posterior spinal fusion (n=14) or bilateral posterior spinal fusion (n=14)...
June 21, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28646476/the-relationship-between-circulating-adiponectin-leptin-and-vaspin-with-bone-mineral-density-bmd-arterial-calcification-and-stiffness-a-cross-sectional-study-in-post-menopausal-women
#2
N Tanna, K Patel, A E Moore, D Dulnoan, S Edwards, G Hampson
OBJECTIVE: To explore the relationship between circulating adiponectin, leptin and vaspin with bone mineral density (BMD), arterial stiffness and vascular calcification in post-menopausal women. We hypothesised that adipokines produced by adipose tissue may be mediators of bone and cardiovascular disease (CVD) and explain, in part, the observed association between osteoporosis and CVD. DESIGN: We studied 386 ambulant community dwelling postmenopausal women aged (mean [SD] 61 [6...
June 23, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28646158/metabolic-recovery-of-lipodystrophy-liver-steatosis-and-pancreatic-%C3%AE-cell-proliferation-after-the-withdrawal-of-osi-906
#3
Kazuki Tajima, Jun Shirakawa, Yu Togashi, Shunsuke Yamazaki, Tomoko Okuyama, Mayu Kyohara, Hiromi Konishi, Yasuo Terauchi
Growth factor signaling via insulin receptor (IR) and IGF-1 receptor (IGF1R) plays several important roles in the pathogenesis of metabolic syndrome and diabetes. OSI-906 (linsitinib), an anti-tumor drug, is an orally bioavailable dual inhibitor of IR and IGF1R. To investigate the recovery from metabolic changes induced by the acute inhibition of IR and IGF1R in adult mice, mice were treated with OSI-906 or a vehicle for 7 days and the results were analyzed on the last day of injection (Day 7) or after 7 or 21 days of withdrawal (Day 14 or Day 28)...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645653/catalase-overexpression-modulates-metabolic-parameters-in-a-new-stress-less-leptin-deficient-mouse-model
#4
Deborah L Amos, Tanner Robinson, Melissa B Massie, Carla Cook, Alexis Hoffsted, Courtney Crain, Nalini Santanam
Oxidative stress plays a key role in obesity by modifying the function of important biological molecules, thus altering obesogenic pathways such as glucose and lipid signaling. Catalase, is an important endogenous antioxidant enzyme that catabolizes hydrogen peroxide produced by the dismutation of superoxide. Recent studies have shown knockdown of catalase exacerbates insulin resistance and leads to obesity. We hypothesized that overexpressing catalase in an obese mouse will modulate obesogenic pathways and protect against obesity...
June 20, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28645331/circadian-clock-gene-polymorphisms-in-relation-to-sleep-patterns-and-obesity-in-african-americans-findings-from-the-jackson-heart-study
#5
Pia Riestra, Samson Y Gebreab, Ruihua Xu, Rumana J Khan, Amadou Gaye, Adolfo Correa, Nancy Min, Mario Sims, Sharon K Davis
BACKGROUND: Circadian rhythms regulate key biological processes and the dysregulation of the intrinsic clock mechanism affects sleep patterns and obesity onset. The CLOCK (circadian locomotor output cycles protein kaput) gene encodes a core transcription factor of the molecular circadian clock influencing diverse metabolic pathways, including glucose and lipid homeostasis. The primary objective of this study was to evaluate the associations between CLOCK single nucleotide polymorphisms (SNPs) and body mass index (BMI)...
June 23, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28645299/programming-of-mouse-obesity-by-maternal-exposure-to-concentrated-ambient-fine-particles
#6
Minjie Chen, Xiaoke Wang, Ziying Hu, Huifen Zhou, Yanyi Xu, Lianglin Qiu, Xiaobo Qin, Yuhao Zhang, Zhekang Ying
BACKGROUND: Many diseases including obesity may originate through alterations in the early-life environment that interrupts fetal development. Increasing evidence has shown that exposure to ambient fine particles (PM2.5) is associated with abnormal fetal development. However, its long-term metabolic effects on offspring have not been systematically investigated. RESULTS: To determine if maternal exposure to PM2.5 programs offspring obesity, female C57Bl/6j mice were exposed to filtered air (FA) or concentrated ambient PM2...
June 23, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28644757/relationships-between-adipokine-profiles-physique-index-and-severity-of-bronchiolitis-in-infancy
#7
Ryou Kawamata, Yuji Gunji, Ayafumi Ozaki, Kei Wakabayashi, Yuka Miyajimaa, Yukifumi Monden, Kei Numazaki, Kazuo Takahashi
INTRODUCTION: Relationships between adipokines, adiposity and severity of acute viral bronchiolitis in infancy have not been elucidated. MATERIALS AND METHODS: We investigated the relationships between three serum adipokines (leptin, adiponectin and TNF-α), physique index (Kaup index) and clinical severity in 13 bronchiolitis infants. Seven healthy infants were enrolled as the control group. We used Modified Pulmonary Index Score (MPIS) to evaluate bronchiolitis severity...
June 23, 2017: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/28643734/the-significance-of-serum-leptin-level-in-patients-with-early-stage-nonsmall-cell-lung-cancer
#8
Fatih Karatas, Bulent Yalcin, Suleyman Sahin, Hakan Akbulut, Gungor Utkan, Ahmet Demirkazik, Fikri Icli
BACKGROUNDS: The serum leptin level (SLL) has been shown to increase in patients with nonsmall cell lung cancer (NSCLC). However, available data regarding the relation between SLL and tumor subtypes, survival, cachexia, and tumor respectability in NSCLC are still under debate. The aim of this study is to evaluate SLL in NSCLC patients with and without cachexia. MATERIALS AND METHODS: A total of 71 patients with early stage NSCLC were enrolled in this prospective study...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643476/low-leptin-concentration-may-identify-heart-failure-patients-with-central-sleep-apnea
#9
Ivan Cundrle, Virend K Somers, Prachi Singh, Bruce D Johnson, Christopher G Scott, Lyle J Olson
Low leptin concentration has been shown to be associated with central sleep apnea in heart failure patients. We hypothesized that low leptin concentration predicts central sleep apnea. Consecutive ambulatory New York Heart Association (NYHA) classes I-IV heart failure patients were studied prospectively, including measurement of serum leptin, echocardiography and polysomnography. Sleep apnea was defined by type (central/mixed/obstructive) and by apnea-hypopnea index ≥5 by polysomnography. Subjects were divided into four groups by polysomnography: (1) central sleep apnea, (2) mixed apnea, (3) no apnea and (4) obstructive sleep apnea...
June 23, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28641938/administration-of-a-leptin-antagonist-during-the-neonatal-leptin-surge-induces-alterations-in-the-redox-and-inflammatory-state-in-peripubertal-adolescent-rats
#10
Virginia Mela, Oskarina Hernandez, Caroline Hunsche, Francisca Diaz, Julie A Chowen, Mónica De la Fuente
The importance of the neonatal leptin surge in rodents in neurodevelopmental processes has aroused curiosity in its implication in other physiological systems. Given the role of leptin in neuro-immune interactions, we hypothesized that the neonatal leptin surge could have an effect on the oxidative and inflammatory stress situations of both systems. We blocked the neonatal leptin surge by a leptin antagonist and measured several parameters of oxidative and inflammatory stress in the spleen, hypothalamus and adipose tissue of peripubertal/adolescent rats...
June 19, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28641783/abnormal-levels-of-adipokines-in-adolescent-offspring-of-women-with-type-1-diabetes-results-from-the-epicom-study
#11
Zuzana Lohse, Birgitte Bytoft, Sine Knorr, Tine D Clausen, Rikke Beck Jensen, Henning Beck-Nielsen, Anne Pernille Hermann, Peter Oturai, Jan Frystyk, Peter Damm, Claus H Gravholt, Kurt Højlund, Dorte M Jensen
AIMS/HYPOTHESIS: To investigate long-term consequences of diabetes during pregnancy, we determined adiponectin and leptin levels in adolescents born by women with type 1 diabetic (T1D) or non-diabetic mothers, and determined associations between adiponectin and leptin levels in adolescence and the magnitude of intrauterine hyperglycemia. RESEARCH DESIGN AND METHODS: We measured serum adiponectin and leptin and calculated leptin to adiponectin ratio (LAR) in 271 offspring of T1D women (index offspring) (13-20years), and 297 matched control offspring...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28641780/associations-of-maternal-prenatal-smoking-with-umbilical-cord-blood-hormones-the-project-viva-cohort
#12
Abby F Fleisch, Sheryl L Rifas-Shiman, Lisa B Rokoff, Marie-France Hivert, Christos S Mantzoros, Emily Oken
BACKGROUND: Maternal smoking during pregnancy is associated with low fetal growth and adverse cardiometabolic health in offspring. However, hormonal pathways underlying these associations are unclear. Therefore, we examined maternal smoking habits and umbilical cord blood hormone profiles in a large, prospective cohort. METHODS: We studied 978 mother/infant pairs in Project Viva, a Boston-area cohort recruited 1999-2002. We categorized mothers as early pregnancy smokers, former smokers, or never smokers...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28641778/clinical-presentations-metabolic-abnormalities-and-end-organ-complications-in-patients-with-familial-partial-lipodystrophy
#13
Baris Akinci, Huseyin Onay, Tevfik Demir, Şenay Savas-Erdeve, Ramazan Gen, Ilgin Yildirim Simsir, Fatma Ela Keskin, Mehmet Sercan Erturk, Ayse Kubat Uzum, Guzin Fidan Yaylali, Nilufer Kutbay Ozdemir, Tahir Atik, Samim Ozen, Banu Sarer Yurekli, Tugce Apaydin, Canan Altay, Gulcin Akinci, Leyla Demir, Abdurrahman Comlekci, Mustafa Secil, Elif Arioglu Oral
OBJECTIVE: Familial partial lipodystrophy (FPLD) is a rare genetic disorder characterized by partial lack of subcutaneous fat. METHODS: This multicenter prospective observational study included data from 56 subjects with FPLD (18 independent Turkish families). Thirty healthy controls were enrolled for comparison. RESULTS: Pathogenic variants of the LMNA gene were determined in nine families. Of those, typical exon 8 codon 482 pathogenic variants were identified in four families...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28640857/glucose-dysregulation-and-response-to-common-anti-diabetic-agents-in-the-fatzo-pco-mouse
#14
Richard G Peterson, Charles Van Jackson, Karen M Zimmerman, Jorge Alsina-Fernandez, M Dodson Michael, Paul J Emmerson, Tamer Coskun
The FATZO/Pco mouse is the result of a cross of the C57BL/6J and AKR/J strains. The crossing of these two strains and the selective inbreeding for obesity, insulin resistance and hyperglycemia has resulted in an inbred strain exhibiting obesity in the presumed presence of an intact leptin pathway. Routinely used rodent models for obesity and diabetes research have a monogenic defect in leptin signaling that initiates obesity. Given that obesity and its sequelae in humans are polygenic in nature and not associated with leptin signaling defects, the FATZO mouse may represent a more translatable rodent model for study of obesity and its associated metabolic disturbances...
2017: PloS One
https://www.readbyqxmd.com/read/28640843/metabolic-milieu-associates-with-impaired-skeletal-characteristics-in-obesity
#15
Heli T Viljakainen, Heikki A Koistinen, Taina Tervahartiala, Timo Sorsa, Sture Andersson, Outi Mäkitie
High leptin concentration, low-grade inflammation, and insulin resistance often coexist in obese subjects; this adverse metabolic milieu may be the main culprit for increased fracture risk and impaired bone quality seen in patients with type 2 diabetes. We examined the associations of leptin, hs (high sensitivity)- CRP and insulin resistance with bone turnover markers (BTMs) and bone characteristics in 55 young obese adults (median BMI 40 kg/m2) and 65 non-obese controls. Mean age of the subjects was 19.5 ± 2...
2017: PloS One
https://www.readbyqxmd.com/read/28639282/adipokines-played-a-limited-role-in-predicting-temporary-growth-differences-between-very-low-birth-weight-infants-with-and-without-bronchopulmonary-dysplasia
#16
A Lehtinen, P Korhonen, E Hyödynmaa, A M Koivisto, T Peltola, M Hämäläinen, E Moilanen, O Tammela
AIMS: This study explored whether growth was poorer among very low birth weight (VLBW) infants with bronchopulmonary dysplasia (BPD) and assessed adipokine levels as predictors of early growth. METHODS: We studied 53 VLBW infants born in Tampere University Hospital up to 12 months of corrected age (CA). The mean age of the 21 infants with BPD and 32 infants without BPD was 29 weeks and the mean weights were 930 (635-1,470) and 1,185 (650-1,470) grams. Growth parameters, macronutrients intake and plasma levels of adipokines were measured...
June 22, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28639107/depressive-symptoms-in-patients-with-obstructive-sleep-apnea-biological-mechanistic-pathways
#17
Diana A Chirinos, Indira Gurubhagavatula, Preston Broderick, Julio A Chirinos, Karen Teff, Thomas Wadden, Greg Maislin, Hassam Saif, Jesse Chittams, Caitlin Cassidy, Alexandra L Hanlon, Allan I Pack
This study examined the association between depressive symptoms, as well as depressive symptom dimensions, and three candidate biological pathways linking them to Obstructive sleep apnea (OSA): (1) inflammation; (2) circulating leptin; and (3) intermittent hypoxemia. Participants included 181 obese adults with moderate-to-severe OSA enrolled in the Cardiovascular Consequences of Sleep Apnea (COSA) trial. Depressive symptoms were measured using the Beck Depression Inventory-II (BDI-II). We assessed inflammation using C-reactive protein levels (CRP), circulating leptin by radioimmunoassay using a double antibody/PEG assay, and intermittent hypoxemia by the percentage of sleep time each patient had below 90% oxyhemoglobin saturation...
June 21, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28638873/protective-effect-of-camel-milk-as-anti-diabetic-supplement-biochemical-molecular-and-immunohistochemical-study
#18
Ahmed A Mansour, Mohammed A Nassan, Osama M Saleh, Mohamed M Soliman
BACKGROUND: Diabetes is a serious disease affects human health. Diabetes in advanced stages is accompanied by general weakness and alteration in fats and carbohydrates metabolism. Recently there are some scientific trends about the usage of camel milk (CM) in the treatment of diabetes and its associated alterations. CM contains vital active particles with insulin like action that cure diabetes and its complications but how these effects occur, still unclear. MATERIALS AND METHODS: Seventy-five adult male rats of the albino type divided into five equal groups...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28638788/histone-deacetylases-microrna-and-leptin-crosstalk-in-pancreatic-cancer
#19
REVIEW
Cynthia I Tchio Mantho, Adriana Harbuzariu, Ruben R Gonzalez-Perez
Because pancreatic cancer (PC) historically has had poor prognosis and five year survival rates, it has been intensely investigated. Analysis of PC incidence and biology has shown a link between different risk factors such as smoking, alcoholism, and obesity and disease progression. Important factors affecting PC include the epigenomic changes driven by DNA methylation and histone acetylation, and actions of microRNA inducing oncogenic or tumor suppressor effects. Studies have identified markers whose dysregulation seem to play important roles in PC progression...
June 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28638713/the-behavioral-and-physiological-effects-of-high-fat-diet-and-alcohol-consumption-sex-differences-in-c57bl6-j-mice
#20
Rachel R Gelineau, Nicole L Arruda, Jasmin A Hicks, Isabella Monteiro De Pina, Aikaterini Hatzidis, Joseph A Seggio
BACKGROUND AND OBJECTIVE: Animal studies can be a great tool to investigate sex differences in a variety of different ways, including behavioral and physiological responses to drug treatments and different "lifestyle variables" such as diets. Consumption of both high-fat diets and alcohol is known to affect anxiety behaviors and overall health. This project investigated how high-fat diet and alcohol access and its combination affected the behavior and physiology of male and female C57BL/6J mice...
June 2017: Brain and Behavior
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