keyword
MENU ▼
Read by QxMD icon Read
search

Leptin

keyword
https://www.readbyqxmd.com/read/29228137/association-of-gnrhr-mrna-with-the-stem-cell-determinant-musashi-a-mechanism-for-leptin-mediated-modulation-of-gnrhr-expression
#1
Angela K Odle, Helen Beneš, Andrea Melgar-Castillo, Noor Akhter, Mohsin Syed, Anessa Haney, Melody Allensworth-James, Linda Hardy, Benjamin Winter, Ragul Manoharan, Raiyan Syed, Melanie C MacNicol, Angus M MacNicol, Gwen V Childs
The cyclic expression of pituitary gonadotropin-releasing hormone receptors (GnRHRs) may be an important checkpoint for leptin regulatory signals. Gonadotrope Lepr-null mice have reduced GnRHR levels, suggesting these receptors may be leptin targets. To determine if leptin stimulated GnRHRs directly, primary pituitary cultures or pieces were exposed to 1-100 nM leptin. Leptin increased GnRHR protein levels and the percentages of gonadotropes that bound biotinylated analogs of GnRH (bio-GnRH) but had no effect on Gnrhr mRNA...
December 8, 2017: Endocrinology
https://www.readbyqxmd.com/read/29226876/serum-c-peptide-visfatin-resistin-and-ghrelin-are-altered-in-sporadic-and-grn-associated-frontotemporal-lobar-degeneration
#2
Roberta Zanardini, Luisa Benussi, Silvia Fostinelli, Claudia Saraceno, Miriam Ciani, Barbara Borroni, Alessandro Padovani, Giuliano Binetti, Roberta Ghidoni
Frontotemporal lobar degeneration (FTLD) is a group of complex neurodegenerative disease characterized by progressive deterioration of the frontal and anterior temporal lobes of the brain resulting in different heterogeneous conditions, mainly characterized by personality changes, behavioral disturbances, such as binge eating, and deficits in language and executive functions. Null mutations in progranulin gene (GRN) are one of the most frequent genetic determinants in familial frontotemporal dementia. Recently, progranulin was recognized as an adipokine involved in diet-induced obesity and insulin resistance revealing its metabolic function...
December 1, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29226756/voluntary-wheel-running-improves-adipose-tissue-immunometabolism-in-ovariectomized-low-fit-rats
#3
Terese M Zidon, Young-Min Park, Rebecca J Welly, Makenzie L Woodford, Rebecca J Scroggins, Steven L Britton, Lauren G Koch, Frank W Booth, Jaume Padilla, Jill A Kanaley, Victoria J Vieira-Potter
Loss of ovarian hormones is associated with increased adiposity, white adipose tissue (WAT) inflammation, and insulin resistance (IR). Previous work demonstrated ovariectomized (OVX) rats bred for high aerobic fitness (HCR) are protected against weight gain and IR compared to rats bred for low aerobic fitness (LCR) yet wheel running prevents OVX-induced IR in LCR rats. The purpose of this study was to determine whether adipose tissue immunometabolic characteristics from female HCR and LCR rats differs before or after OVX, and whether wheel running mitigates OVX-induced adipose tissue immunometabolic changes in LCR rats...
December 11, 2017: Adipocyte
https://www.readbyqxmd.com/read/29226618/enteroinsular-hormones-in-two-siblings-with-donohue-syndrome-and-complete-leptin-deficiency
#4
M Güemes, S A Rahman, P Shah, K Hussain
The main biochemical hallmark of the rare and lethal condition of Donohue syndrome (DS) is hyperinsulinemia. The roles of the gut and other pancreatic hormones involved in glucose metabolism, satiety and energy expenditure have not been previously reported in DS. Two siblings with genetically confirmed DS and extremely low weight underwent a mixed meal (MM) test where pancreatic hormones insulin, C-peptide, glucagon, active amylin, pancreatic polypeptide (PP) as well as gut hormones active glucagon-like peptide 1 (GLP-1), glucose-dependent insulinotropic peptide (GIP), ghrelin, peptide YY (PYY) and leptin were analyzed using a Multiplex assay...
December 11, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/29226077/leptin-induced-migration-and-angiogenesis-in-rheumatoid-arthritis-is-mediated-by-reactive-oxygen-species
#5
Xiaotong Sun, Jing Wei, Yawei Tang, Bing Wang, Yan Zhang, Lei Shi, Jianping Guo, Fanlei Hu, Xia Li
Rheumatoid arthritis (RA) is a progressive autoimmune disease affecting the joints. In this study, we investigated the role of the pro-angiogenic factor leptin in regulating reactive oxygen species (ROS) to promote cell migration and angiogenesis in RA. We showed that leptin triggered RA fibroblast-like synoviocyte (FLS) migration by increased ROS expression. Additionally, leptin enhanced human umbilical vein endothelial cell (HUVEC) tube formation in a ROS/hypoxia-inducible factor-1α-dependent manner, accompanied by increased production of vascular endothelial growth factor and interleukin (IL)-6...
December 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/29225907/changes-in-the-gut-microbiota-composition-and-the-plasma-ghrelin-level-in-patients-with-helicobacter-pylori-infected-patients-with-eradication-therapy
#6
Hidetaka Yanagi, Ayumi Tsuda, Masashi Matsushima, Shunsuke Takahashi, Genki Ozawa, Yasuhiro Koga, Atsushi Takagi
Objective: To investigate the influence of antimicrobials on both the gut microbiota structure and the plasma ghrelin level using Helicobacter pylori-infected patients who underwent eradication therapy. Design: Twenty H. pylori-infected patients (mean age 68.3 years old) who underwent eradication therapy participated in the study. For the therapy, patients had 1 week of triple therapy consisting of amoxicillin, clarithromycin and proton-pump inhibitors. Stool and blood samples were obtained before (S1), immediately after (S2) and/or 3 months after (S3) the therapies...
2017: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/29225622/correlation-between-ch2ds2-vasc-score-and-serum-leptin-levels-in-cardioembolic-stroke-patients-the-impact-of-metabolic-syndrome
#7
Anna Szczepańska-Szerej, Jacek Kurzepa, Aneta Grabarska, Joanna Bielewicz, Ewa Wlizło-Dyś, Konrad Rejdak
Objective: To determine adipokines levels in patients with different etiologic subtypes of acute ischemic stroke (AIS) and metabolic syndrome (MetS) status. Methods: Serum adiponectin, leptin, and resistin levels were determined by ELISA in 99 AIS patients and 59 stroke-free control group subjects. Stroke patients were grouped based on MetS, modified TOAST classification, and CHA2DS2-VASc scale in case of cardioembolic stroke following atrial fibrillation. Results: No differences were found in all adipokine serum levels between AIS patients and appropriately matched control group...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29225423/adiposity-measures-and-plasma-adipokines-in-females-with-rheumatoid-and-osteoarthritis
#8
Vanessa DeClercq, Yunsong Cui, Cynthia Forbes, Scott A Grandy, Melanie Keats, Louise Parker, Ellen Sweeney, Zhijie Michael Yu, Trevor J B Dummer
The objective of this study was to examine the relationship between adipokines and adiposity in individuals with rheumatoid and osteoarthritis in the Atlantic PATH cohort. Using a nested case-control analysis, participants in the Atlantic PATH cohort with rheumatoid or osteoarthritis were matched for measures of adiposity with participants without a history of arthritis. Both measured and self-reported data were used to examine disease status, adiposity, and lifestyle factors. Immunoassays were used to measure plasma markers...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29224669/circadian-aspects-of-adipokine-regulation-in-rodents
#9
REVIEW
Etienne Challet
Most hormones display daily fluctuations of secretion during the 24-h cycle. This is also the case for adipokines, in particular the anorexigenic hormone, leptin. The temporal organization of the endocrine system is principally controlled by a network of circadian clocks. The circadian network comprises a master circadian clock, located in the suprachiasmatic nucleus of the hypothalamus, synchronized to the ambient light, and secondary circadian clocks found in various peripheral organs, such as the adipose tissues...
December 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29224092/sex-differences-in-leptin-control-of-cardiovascular-function-in-health-and-metabolic-diseases
#10
Eric J Belin de Chantemèle
Leptin, the adipocyte-derived hormone identified in 1994 for its major role in the control of satiety and body weight regulation, is an adipokine secreted in a sex-specific manner. Although it has clearly been established that females secrete three to four times more leptin than males and that this sexual dimorphism in leptin secretion is exacerbated with overweight and obesity, the origin and the physiological consequences of this sexual dimorphism remain ill-defined. The adipose tissue is the major site of leptin secretion; however, leptin receptors are ubiquitously expressed, conferring to leptin, and indirectly to the adipose tissue, a potential role in the control of numerous physiological functions...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29223827/colonic-aberrant-crypt-formation-accompanies-an-increase-of-opportunistic-pathogenic-bacteria-in-c57bl-6-mice-fed-a-high-fat-diet
#11
Huawei Zeng, Suzanne L Ishaq, Zhenhua Liu, Michael R Bukowski
The increasing worldwide incidence of colon cancer has been linked to obesity and consumption of a high-fat Western diet. To test the hypothesis that a high-fat diet (HFD) promotes colonic aberrant crypt (AC) formation in a manner associated with gut bacterial dysbiosis, we examined the susceptibility to azoxymethane (AOM)-induced colonic AC and microbiome composition in C57/BL6 mice fed a modified AIN93G diet (AIN, 16% fat, energy) or an HFD (45% fat, energy) for 14 weeks. Mice receiving the HFD exhibited increased plasma leptin, body weight, body fat composition and inflammatory cell infiltration in the ileum compared with those in the AIN group...
November 10, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29223775/association-between-prenatal-bisphenol-a-and-phthalate-exposures-and-fetal-metabolic-related-biomarkers-the-hokkaido-study-on-environment-and-children-s-health
#12
Machiko Minatoya, Atsuko Araki, Chihiro Miyashita, Yu Ait Bamai, Sachiko Itoh, Jun Yamamoto, Yu Onoda, Kazuki Ogasawara, Toru Matsumura, Reiko Kishi
Bisphenol A and phthalates are widely detected in human urine, blood, breast milk, and amniotic fluid. Both bisphenol A and phthalates have been suggested as playing a role in obesity epidemics. Exposure to these chemicals during fetal development, and its consequences should be concerning because they can cross the placenta. Thus, this study aimed to assess the association between prenatal exposure to bisphenol A and phthalates, and cord blood metabolic-related biomarkers. Maternal serum was used during the first trimester, to determine prenatal exposure to bisphenol A and phthalates...
December 7, 2017: Environmental Research
https://www.readbyqxmd.com/read/29223720/serum-periostin-is-associated-with-body-mass-index-and-allergic-rhinitis-in-healthy-and-asthmatic-subjects
#13
Hirokazu Kimura, Satoshi Konno, Hironi Makita, Natsuko Taniguchi, Hiroki Kimura, Houman Goudarzi, Kaoruko Shimizu, Masaru Suzuki, Noriharu Shijubo, Katsunori Shigehara, Junya Ono, Kenji Izuhara, Yoichi Minagawa Ito, Masaharu Nishimura
BACKGROUND: Many studies have attempted to clarify the factors associated with serum periostin levels in asthmatic patients. However, these results were based on studies of subjects mainly characterized by high eosinophil counts, which may present as an obstacle for clarification in the identification of other factors associated with serum periostin levels. The aim of this study was to determine the factors associated with serum periostin levels in healthy subjects. We also assessed some factors in asthmatic subjects to confirm their extrapolation for management of asthma...
December 6, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29223509/neuropeptides-and-breathing-in-health-and-disease
#14
REVIEW
Katarzyna Kaczyńska, Dominika Zając, Piotr Wojciechowski, Ewelina Kogut, Małgorzata Szereda-Przestaszewska
Regulatory neuropeptides control and regulate breathing in physiological and pathophysiological conditions. While they have been identified in the neurons of major respiratory areas, they can be active not only at the central level, but also at the periphery via chemoreceptors, vagal afferents, or locally within lungs and airways. Some neuropeptides, such as leptin or substance P, are respiratory stimulants; others, such as neurotensin, produce variable effects on respiration depending on the site of application...
December 6, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29223020/depressive-symptoms-impaired-glucose-metabolism-high-visceral-fat-and-high-systolic-blood-pressure-in-a-subgroup-of-women-with-recent-gestational-diabetes
#15
U Ferrari, F Banning, I Freibothe, K Tröndle, V Sacco, C Wichmann, S Reif, S Moschko, A Potzel, C Gar, N N Sommer, D Popp, J Seissler, A Lechner, H Künzel
Women with gestational diabetes (GDM) are a high risk group for early type 2 diabetes (T2D). Depression is a risk factor for T2D in the general population. We investigated in women after a recent pregnancy with GDM and without a clinical diagnosis of depression, whether mild to moderate depressive symptoms associate with pathologic glucose metabolism. In a cross-sectional analysis, we examined 173 women, 9 ± 3 months after delivery with several psychopathological assessments, 5-point oral glucose tolerance test with insulin, anthropometrics, and laboratory chemistry...
December 5, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29222412/ancestral-perinatal-obesogen-exposure-results-in-a-transgenerational-thrifty-phenotype-in-mice
#16
Raquel Chamorro-Garcia, Carlos Diaz-Castillo, Bassem M Shoucri, Heidi Käch, Ron Leavitt, Toshi Shioda, Bruce Blumberg
Ancestral environmental exposures to non-mutagenic agents can exert effects in unexposed descendants. This transgenerational inheritance has significant implications for understanding disease etiology. Here we show that exposure of F0 mice to the obesogen tributyltin (TBT) throughout pregnancy and lactation predisposes unexposed F4 male descendants to obesity when dietary fat is increased. Analyses of body fat, plasma hormone levels, and visceral white adipose tissue DNA methylome and transcriptome collectively indicate that the F4 obesity is consistent with a leptin resistant, thrifty phenotype...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29219062/assesment-of-irisin-adiponectin-and-leptin-levels-in-patients-with-schizophrenia
#17
Gamze Erzin, Canan Topcuoglu, Vahap Ozan Kotan, Senol Bayram, Kostas Fountulakis
BACKGROUND: The patients with schizophrenia are at increased risk for problems regarding metabolic parameters due to their lifestyle and antipsychotic treatment. OBJECTIVE: In this study, we aimed to evaluate the levels of adiponectin, leptin, irisin in patients with schizophrenia who were nondiabetic, nonobese and under antipsychotic treatment. METHOD: 5 ml sample of venous blood was collected from each participant. Blood cells were separated from the serum...
December 7, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29219061/effect-of-conjugated-linoleic-acid-supplementation-on-serum-leptin-concentration-a-systematic-review-and-meta-analysis
#18
Fahimeh Haghighatdoost, Mitra Hariri
BACKGROUND: There are controversies regarding the effect of conjugated linoleic acid (CLA) on serum leptin. OBJECTIVE: To conduct a meta-analysis of randomized controlled trials (RCTs) to assess the effect of CLA on serum leptin concentrations. METHOD: Databases such as Ovid, PubMed/Medline, SCOPUS, Google Scholar, and ISI databases up to January 2017 were searched. The searches included RCTs conducted among human adults, and studies on the effect of conjugated linoleic acid on serum leptin concentrations as outcome variables...
December 7, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29217773/a-potent-selective-and-orally-bioavailable-inhibitor-of-the-protein-tyrosine-phosphatase-ptp1b-improves-insulin-and-leptin-signaling-in-animal-models
#19
Navasona Krishnan, Konstantis F Konidaris, Gilles Gasser, Nicholas K Tonks
The protein tyrosine phosphatase PTP1B is a negative regulator of insulin and leptin signaling, and a highly validated therapeutic target for diabetes and obesity. Conventional approaches to drug development have produced potent and specific PTP1B inhibitors, but these inhibitors lack oral bioavailability, which limits their potential for drug development. Here we report that DPM-1001, an analogue of the specific PTP1B inhibitor trodusquemine (MSI-1436), is a potent, specific and orally bioavailable inhibitor of PTP1B...
December 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29217499/severe-early-onset-obesity-due-to-a-novel-missense-mutation-in-exon-3-of-leptin-gene-in-an-infant-from-northwest-india
#20
Devi Dayal, Keerthivasan Seetharaman, Inusha Panigrahi, Muthuvel Balasubramaniyan, Ashish Agarwal
Monogenic obesity caused by mutations in one of the several genes involved in the control of hunger and satiety is a rare cause of early-onset obesity (EOO). The most common of the single gene alterations affect the LEP gene resulting in congenital leptin deficiency that manifests as intense hyperphagia, EOO and severe obesity associated hormonal and metabolic alterations. Only eight mutations of LEP gene associated with congenital leptin deficiency in humans have been described. In this study, we report a novel homozygous missense mutation in exon 3 of the LEP gene (chr7:127894610;c...
December 8, 2017: Journal of Clinical Research in Pediatric Endocrinology
keyword
keyword
3391
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"