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https://www.readbyqxmd.com/read/27923249/thyroid-function-in-human-obesity-underlying-mechanisms
#1
L C Fontenelle, M M Feitosa, J S Severo, T E C Freitas, J B S Morais, F L Torres-Leal, G S Henriques, D do Nascimento Marreiro
Obesity is associated with several metabolic and endocrine disorders; and changes in plasma concentrations, secretion patterns, and clearance of various hormones are observed in obese patients. In this context, recent research has shown that overweight can influence the function of the thyroid gland, usually leading to increased thyrotropin concentrations and changes in the ratio between the hormones triiodothyronine and thyroxine, though within the normal range. The etiology of these changes is still unclear; however, several mechanisms have been proposed including the adaptive process to increase energy expenditure, hyperleptinemia, changes in the activity of deiodinases, the presence of thyroid hormones resistance, chronic low-grade inflammation, and insulin resistance...
December 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27923200/a-quantitative-lc-ms-ms-method-for-simultaneous-determination-of-cocaine-and-its-metabolites-in-whole-blood
#2
Xiabin Chen, Xirong Zheng, Kai Ding, Ziyuan Zhou, Chang-Guo Zhan, Fang Zheng
As new metabolic pathways of cocaine were recently identified, a high performance liquid chromatography tandem mass spectrometry (LC-MS/MS) method was developed to simultaneously determine cocaine and nine cocaine-related metabolites in whole blood samples. One-step solid phase extraction was used to extract all of the ten compounds and corresponding internal standards from blood samples. All compounds and internal standards extracted were separated on an Atlantis T3 (100Å, 3μm, 2.1mm×150mm I.D) column and detected in positive ion and high sensitivity mode with multiple reaction monitoring...
November 11, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27923166/a-comparative-systematic-review-of-yasmin-drospirenone-pill-versus-standard-treatment-options-for-symptoms-of-polycystic-ovary-syndrome
#3
REVIEW
Jing Li, Jing Ren, Wenxia Sun
OBJECTIVES: To systematically review the impact of Yasmin (drospirenone pill) compares with other standard treatments for symptoms of Polycystic Ovary Syndrome (PCOS). STUDY DESIGN: The relevant studies of the randomized controlled trials in women with PCOS treated with drospirenone were retrieved and the systematic evaluation was conducted. RESULTS: Eighteen articles were included. Compared with drospirenone (DRSP) monotherapy, DRSP plus metformin was better in reducing body mass index (BMI), luteinizing hormone (LH) and low-density lipoprotein cholesterol (LDL-C)...
November 16, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27923151/a-novel-role-for-the-kr%C3%A3-ppel-like-factor-14-on-macrophage-inflammatory-response-and-atherosclerosis-development
#4
Xiao Wei, Ruomei Yang, Chengpan Wang, Xun Jian, Ling Li, Hua Liu, Gangyi Yang, Zhiyong Li
Genome-wide association studies have shown that Krüppel-like factor 14 (KLF14) is associated with both Type 2 diabetes mellitus and lipid metabolism. However, its role in chronic inflammatory responses and the pathogenesis of atherosclerosis remains unknown. The present study was designed to investigate both in vivo and in vitro the impact of KLF14 on chronic inflammatory responses and atherosclerosis. ApoE KO mice, a well-established animal model of atherosclerosis, had higher expressions of KLF14 in aorta tissues than that in C57BL/6 J mice when fed the high-fat diet (HFD) or standard chow diet...
November 14, 2016: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/27923139/plga-peg-plga-triblock-copolymeric-micelles-as-oral-drug-delivery-system-in-vitro-drug-release-and-in-vivo-pharmacokinetics-assessment
#5
Xiufen Chen, Jianzhong Chen, Bowen Li, Xiang Yang, Rongjie Zeng, Yajun Liu, Tao Li, Rodney J Y Ho, Jingwei Shao
Poly (d,l-lactide-co-glycolide)-poly (ethylene glycol)-poly (d,l-lactide-co-glycolide) triblock copolymers (PLGA-PEG-PLGA) has been proven to be desirable for anti-cancer drug delivery by intravenous administration. But till now there is no report of developing this micelle as a sustained oral formulation for cancer therapy. 3β-acetoxy-urs-12-en-28-oic acid hexamethylenediamine (US597), a derivative of natural product ursolic acid has been developed as a novel cancer metastasis chemopreventive agent by us...
November 26, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27923109/generation-of-domain-specific-monoclonal-antibodies-against-human-glutaredoxin3
#6
Xin Dai, Yanqing Li, Xiaohong Sun, Kai Cai, Qinwen Mao, Haibin Xia
Human Glutaredoxin3 (hGLRX3), which encodes a 37.4 kDa protein, possesses an N-terminal Trx homology domain followed by two tandem repeats of Grx domains. GLRX3 is expressed in many tissues and plays important roles in iron metabolism, antioxidant effect, cell proliferation and development, regulation of immune reaction, and tumorigenesis. The mechanisms underlying the biological function of GLRX3 are still not clear. To facilitate the functional research of GLRX3, in this study, monoclonal antibodies (MAbs) against hGLRX3 were produced by using purified prokaryotic recombinant 6His-hGLRX3 fusion protein as the immunogen...
December 6, 2016: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/27923100/effects-of-air-pollution-exposure-on-glucose-metabolism-in-los-angeles-minority-children
#7
C M Toledo-Corral, T L Alderete, R Habre, K Berhane, F W Lurmann, M J Weigensberg, M I Goran, F D Gilliland
OBJECTIVES: Growing evidence indicates that ambient (AAP: NO2 , PM2.5 and O3 ) and traffic-related air pollutants (TRAP) contribute to metabolic disease risk in adults; however, few studies have examined these relationships in children. METHODS: Metabolic profiling was performed in 429 overweight and obese African-American and Latino youth living in urban Los Angeles, California. This cross-sectional study estimated individual residential air pollution exposure and used linear regression to examine relationships between air pollution and metabolic outcomes...
December 6, 2016: Pediatric Obesity
https://www.readbyqxmd.com/read/27923067/chronological-lifespan-in-yeast-is-dependent-on-the-accumulation-of-storage-carbohydrates-mediated-by-yak1-mck1-and-rim15-kinases
#8
Lu Cao, Yingzhi Tang, Zhenzhen Quan, Zhe Zhang, Stephen G Oliver, Nianshu Zhang
Upon starvation for glucose or any other macronutrient, yeast cells exit from the mitotic cell cycle and acquire a set of characteristics that are specific to quiescent cells to ensure longevity. Little is known about the molecular determinants that orchestrate quiescence entry and lifespan extension. Using starvation-specific gene reporters, we screened a subset of the yeast deletion library representing the genes encoding 'signaling' proteins. Apart from the previously characterised Rim15, Mck1 and Yak1 kinases, the SNF1/AMPK complex, the cell wall integrity pathway and a number of cell cycle regulators were shown to be necessary for proper quiescence establishment and for extension of chronological lifespan (CLS), suggesting that entry into quiescence requires the integration of starvation signals transmitted via multiple signaling pathways...
December 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27923065/mutations-in-the-heme-exporter-flvcr1-cause-sensory-neurodegeneration-with-loss-of-pain-perception
#9
Deborah Chiabrando, Marco Castori, Maja di Rocco, Martin Ungelenk, Sebastian Gießelmann, Matteo Di Capua, Annalisa Madeo, Paola Grammatico, Sophie Bartsch, Christian A Hübner, Fiorella Altruda, Lorenzo Silengo, Emanuela Tolosano, Ingo Kurth
Pain is necessary to alert us to actual or potential tissue damage. Specialized nerve cells in the body periphery, so called nociceptors, are fundamental to mediate pain perception and humans without pain perception are at permanent risk for injuries, burns and mutilations. Pain insensitivity can be caused by sensory neurodegeneration which is a hallmark of hereditary sensory and autonomic neuropathies (HSANs). Although mutations in several genes were previously associated with sensory neurodegeneration, the etiology of many cases remains unknown...
December 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27922938/skeletal-muscle-mass-is-associated-with-higher-dietary-protein-intake-and-lower-body-fat-in-postmenopausal-women-a-cross-sectional-study
#10
Thaís R Silva, Poli M Spritzer
OBJECTIVE: We investigated the association between skeletal muscle mass and dietary protein intake, habitual physical activity, body composition, and metabolic variables. METHODS: One hundred three healthy postmenopausal women from southern Brazil (age 55.2 ± 4.9 y, body mass index 27.2 ± 4.6 kg/m) were enrolled. Bone mineral density, %body fat, %trunk fat mass, and appendicular lean mass were assessed by dual-energy x-ray absorptiometry, resting metabolic rate by indirect calorimetry, and habitual physical activity by pedometer...
December 5, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27922919/association-between-sarcopenia-and-metabolic-syndrome-in-cancer-survivors
#11
Su Jung Lee, Nam Cho Kim
BACKGROUND: Advanced cancer treatments have improved survival from cancer, but the incidence of cardiovascular disease in survivors has recently increased. Sarcopenia and metabolic syndrome (MetS) are related to cancer survival, and sarcopenia is an emerging risk factor for cardiovascular disease. However, evidence of a relationship between sarcopenia and MetS in cancer survivors is lacking. OBJECTIVES: The aims of this study were to determine the prevalence of sarcopenia and MetS in cancer survivors and to investigate independent predictors of MetS in cancer survivors...
December 5, 2016: Cancer Nursing
https://www.readbyqxmd.com/read/27922886/bioengineered-renal-cell-therapy-device-for-clinical-translation
#12
Christopher J Pino, Angela J Westover, Deborah A Buffington, H David Humes
The Bioartificial Renal Epithelial Cell System (BRECS), is a cell-based device to treat acute kidney injury through renal cell therapy from an extracorporeal circuit. To enable widespread implementation of cell therapy, the BRECS was designed to be cryopreserved as a complete device, cryostored, cryoshipped to an end-use site, thawed as a complete device, and employed in a therapeutic extracorporeal hemofiltration circuit. This strategy overcomes storage and distribution issues that have been previous barriers to cell therapy...
December 2, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27922865/additional-value-of-early-phase-18f-fp-cit-pet-image-for-differential-diagnosis-of-atypical-parkinsonism
#13
Soyoung Jin, Minyoung Oh, Seung Jun Oh, Jungsu S Oh, Sang Ju Lee, Sun Ju Chung, Jae Seung Kim
PURPOSE: Regional cerebral perfusion is coupled to metabolism in general. Early perfusion dominant imaging using F-FP-CIT PET (pCIT) may provide complementary information to delayed dopamine transporter dominant images. We investigated the ability of pCIT to differentiate atypical Parkinson disorder from Parkinson disease (PD) compared to FDG and the image quality for optimizing the acquisition time. METHODS: Sixty-seven subjects [PD, 23 subjects; multiple system atrophy-cerebellar type (MSA-C), 27 subjects; MSA-Parkinson type (MSA-P), 12 subjects; and progressive supranuclear palsy (PSP), 5 subjects] underwent F-FP-CIT and FDG PET...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922857/comprehensive-assessment-of-the-arginine-pathway-and-its-relationship-to-inflammation-in-hiv
#14
Sahera Dirajlal-Fargo, S M Khurshid Alam, Abdus Sattar, Manjusha Kulkarni, Nicholas Funderburg, W H Wilson Tang, Grace A Mccomsey
BACKGROUND: Nitric oxide helps maintain vascular function and is generated through the oxidation of arginine. Whether altered arginine metabolism may lead to elevated levels of inflammation in HIV is unclear. METHODS: We performed a cross-sectional analysis of HIV-infected adults on stable ART with HIV-1 RNA < 50 copies/mL and HIV-uninfected controls. We measured biomarkers in the arginine pathway, markers of systemic inflammation, and monocyte activation. T-tests, chi-square tests and propensity score matching analyses were used to compare markers by HIV status, and multiple linear regressions were used to assess associations of arginine metabolites with markers of inflammation...
December 5, 2016: AIDS
https://www.readbyqxmd.com/read/27922847/apolipoprotein-e-metabolism-and-functions-in-brain-and-its-role-in-alzheimer-s-disease
#15
Fan Liao, Hyejin Yoon, Jungsu Kim
PURPOSE OF REVIEW: APOE4 genotype is the strongest genetic risk factor for Alzheimer's disease. Prevailing evidence suggests that amyloid β plays a critical role in Alzheimer's disease. The objective of this article is to review the recent findings about the metabolism of apolipoprotein E (ApoE) and amyloid β and other possible mechanisms by which ApoE contributes to the pathogenesis of Alzheimer's disease. RECENT FINDINGS: ApoE isoforms have differential effects on amyloid β metabolism...
December 5, 2016: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/27922824/impaired-energy-metabolism-of-senescent-muscle-satellite-cells-is-associated-with-oxidative-modifications-of-glycolytic-enzymes
#16
Martín A Baraibar, Janek Hyzewicz, Adelina Rogowska-Wrzesinska, Anne-Laure Bulteau, Carina Prip-Buus, Gillian Butler-Browne, Bertrand Friguet
Accumulation of oxidized proteins is a hallmark of cellular and organismal aging. Adult muscle stem cell (or satellite cell) replication and differentiation is compromised with age contributing to sarcopenia. However, the molecular events related to satellite cell dysfunction during aging are not completely understood. In the present study we have addressed the potential impact of oxidatively modified proteins on the altered metabolism of senescent human satellite cells. By using a modified proteomics analysis we have found that proteins involved in protein quality control and glycolytic enzymes are the main targets of oxidation (carbonylation) and modification with advanced glycation/lipid peroxidation end products during the replicative senescence of satellite cells...
December 4, 2016: Aging
https://www.readbyqxmd.com/read/27922820/rapamycin-treatment-benefits-glucose-metabolism-in-mouse-models-of-type-2-diabetes
#17
Peter C Reifsnyder, Kevin Flurkey, Austen Te, David E Harrison
Numerous studies suggest that rapamycin treatment promotes insulin resistance, implying that rapamycin could have negative effects on patients with, or at risk for, type 2 diabetes (T2D). New evidence, however, indicates that rapamycin treatment produces some benefits to energy metabolism, even in the context of T2D. Here, we survey 5 mouse models of T2D (KK, KK-Ay, NONcNZO10, BKS-db/db, TALLYHO) to quantify effects of rapamycin on well-recognized markers of glucose homeostasis within a wide range of T2D environments...
November 30, 2016: Aging
https://www.readbyqxmd.com/read/27922757/hemophagocytic-lymphohistiocytosis-triggered-by-gaucher-disease-in-a-preterm-neonate
#18
Simone Schüller, Andishe Attarbaschi, Angelika Berger, Caroline Hutter, Katrin Klebermass-Schrehof, Manuel Steiner
OBJECTIVE: To present the diagnostic workup in an extremely low birth weight infant patient with signs of both sepsis and hemophagocytosis. PARTICIPANTS: A preterm infant presented with clinical and laboratory signs of early-onset sepsis including hepatosplenomegaly, thrombocytopenia, direct hyperbilirubinemia, and elevated liver enzymes. METHODS: Despite extensive septic workup, no underlying infection was detected. Additional hyperferritinemia and other elevated inflammatory parameters raised the suspicion of a primary or secondary hemophagocytic lymphohistiocytosis (HLH)...
December 6, 2016: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/27922752/abnormal-glucose-metabolism-and-high-energy-expenditure-in-idiopathic-pulmonary-arterial-hypertension
#19
Gustavo A Heresi, Steven K Malin, Jarrod W Barnes, Liping Tian, John P Kirwan, Raed A Dweik
RATIONALE: Insulin resistance has emerged as a potential mechanism related to the pathogenesis of idiopathic pulmonary arterial hypertension (IPAH). However, direct measurements of insulin and glucose metabolism have not been performed in IPAH patients to date. OBJECTIVES: To perform comprehensive metabolic phenotyping on humans with IPAH. METHODS: We assessed plasma insulin and glucose using an oral glucose tolerance test and estimated insulin resistance and beta-cell function in 14 IPAH patients and 14 controls matched for age, sex, blood pressure, and body mass index (BMI),...
December 6, 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27922734/population-pharmacokinetics-of-ceritinib-in-adult-patients-with-tumors-characterized-by-genetic-abnormalities-in-anaplastic-lymphoma-kinase
#20
Ying Hong, Vanessa Q Passos, Pai-Hsi Huang, Yvonne Y Lau
Ceritinib is a second-generation selective and potent oral anaplastic lymphoma kinase (ALK) inhibitor approved for ALK-positive advanced non-small cell lung cancer previously treated with crizotinib. Population pharmacokinetic (PK) analysis was performed to describe the PK of ceritinib and was used to evaluate the covariate effects on systemic exposure at its label dose (750 mg orally once daily). Ceritinib concentration-time data from 4 clinical studies were described by a 1-compartment model with delayed first-order absorption and time-dependent elimination...
December 6, 2016: Journal of Clinical Pharmacology
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