Age-related impairment of pancreatic Beta-cell function: pathophysiological and cellular mechanisms.

abstract：:Cholesterol is a vital lipid molecule for mammalian cells, regulating fluidity of biological membranes, and serving as an essential constituent of lipid rafts. Mammalian cells acquire cholesterol from extracellular lipoproteins and from de novo synthesis. Cholesterol biosynthesis generates various precursor sterols. C...

journal_title：Frontiers in endocrinology

authors： Yamauchi Y,Rogers MA

更新日期：2018-09-19 00:00:00

abstract：:Over the last decades, thyroid hormone metabolites (THMs) received marked attention as it has been demonstrated that they are bioactive compounds. Their concentrations were determined by immunoassay or mass-spectrometry methods. Among those metabolites, 3,5-diiodothyronine (3,5-T2), occurs at low nanomolar concentrati...

journal_title：Frontiers in endocrinology

authors： Köhrle J,Lehmphul I,Pietzner M,Renko K,Rijntjes E,Richards K,Anselmo J,Danielsen M,Jonklaas J

更新日期：2020-01-08 00:00:00

abstract：:Several studies have shown that a woman's vaginal or axillary odors convey information on her attractivity. Yet, whether such scents induce psychoneuroendocrinological changes in perceivers is still controversial. We studied if smelling axillary and vulvar odors collected in the periovulatory and late luteal phases of...

journal_title：Frontiers in endocrinology

authors： Cerda-Molina AL,Hernández-López L,de la O CE,Chavira-Ramírez R,Mondragón-Ceballos R

更新日期：2013-10-28 00:00:00

abstract：:The tropical freshwater zebrafish has recently emerged as a valuable model organism for the study of adipose tissue biology and obesity-related disease. The strengths of the zebrafish model system are its wealth of genetic mutants, transgenic tools, and amenability to high-resolution imaging of cell dynamics within li...

journal_title：Frontiers in endocrinology

authors： Wafer R,Tandon P,Minchin JEN

更新日期：2017-05-22 00:00:00

abstract：:Autophagy requires the conjugation of autophagy-related protein 12 (ATG12) to autophagy-related protein 5 (ATG5) through covalent attachment. However, the signals regulating ATG12-ATG5 conjugation are unclear. The larval midgut of lepidopteran insects performs autophagy and apoptosis sequentially during the transition...

journal_title：Frontiers in endocrinology

authors： Li YB,Yang T,Wang JX,Zhao XF

更新日期：2018-02-07 00:00:00

abstract：:Gonadotropin-releasing hormone (GnRH) is the ultimate output signal of an intricate network of neuroendocrine factors that, acting on the pituitary, trigger gonadotropin release. In turn, gonadotropins exert their trophic action on the gonads to stimulate the synthesis of sex steroids thus completing the gonadotropic ...

journal_title：Frontiers in endocrinology

authors： Navarro VM

更新日期：2012-04-02 00:00:00

abstract：:Rationale: Hypoxia induces leptin gene expression in human adipocytes via hypoxia-inducible factors (HIF-α/β). Under ambient moderate hypoxia, leptin in adipocytes is elevated for at least 14 days. Leptin is supposedly involved in the reduced food intake, increased utilization of fatty acids for energy production and ...

journal_title：Frontiers in endocrinology

authors： Rausch LK,Hofer M,Pramsohler S,Kaser S,Ebenbichler C,Haacke S,Gatterer H,Netzer NC

更新日期：2018-10-18 00:00:00

abstract：:During mammalian pregnancy, highly specialized mechanisms of immune tolerance are triggered in order to allow the semi-allogeneic fetus to grow within the maternal uterus in harmony with the maternal immune system. Among other mechanisms, changes in the endocrine status have been proposed to be at least part of the ma...

journal_title：Frontiers in endocrinology

authors： Muzzio D,Zygmunt M,Jensen F

更新日期：2014-04-01 00:00:00

abstract：:Objective: Quantitative investigations of facial changes in acromegaly are rare. A new imaging technique, three-dimensional (3D) stereophotography, can accurately quantify whole facial changes. We aimed to measure facial characteristics in acromegaly patients using 3D stereophotography, analyze gender-specific feature...

journal_title：Frontiers in endocrinology

authors： Guo X,Meng T,Huang J,Wang X,Lian W,Deng K,Gao L,Wang Z,Xing B,Long X

更新日期：2018-11-29 00:00:00

abstract：:Biological steroids were traditionally thought to be synthesized exclusively by the adrenal glands and gonads. Recent decades have seen the discovery of neurosteroid production that acts locally within the central nervous system to affect physiology and behavior. These actions include, for example, regulation of aggre...

journal_title：Frontiers in endocrinology

authors： Wingfield JC,Wacker DW,Bentley GE,Tsutsui K

更新日期：2018-06-18 00:00:00

abstract：:Reproductive function is regulated by the secretion of luteinizing hormone (LH) and follicle-stimulating hormone from the pituitary and the steroid hormones from the gonads. The dynamic changes in the levels of the reproductive hormones regulate secondary sex characteristics, gametogenesis, cellular function, and beha...

journal_title：Frontiers in endocrinology

authors： Radovick S,Levine JE,Wolfe A

更新日期：2012-04-09 00:00:00

abstract：:Vitiligo represents the most common cause of acquired skin, hair, and oral depigmentation, affecting 0.5-1% of the population worldwide. It is clinically characterized by the appearance of disfiguring circumscribed skin macules following melanocyte destruction by autoreactive cytotoxic T lymphocytes. Patients affected...

journal_title：Frontiers in endocrinology

authors： Baldini E,Odorisio T,Sorrenti S,Catania A,Tartaglia F,Carbotta G,Pironi D,Rendina R,D'Armiento E,Persechino S,Ulisse S

更新日期：2017-10-27 00:00:00

abstract：:Spontaneous and oxytocin induced contractile activity was quantified in the bicornuate uteri of pregnant rabbits maintained in situ, using data from two- and uni- dimensional video spatiotemporal maps (VSTM) of linear and area strain rate and compared statistically. Spontaneous contractions occurred over a range of fr...

journal_title：Frontiers in endocrinology

authors： Hulls CM,Lentle RG,Chua WH,Suisted P,King QM,Chagas JAB,Chambers JP,Stewart L

更新日期：2019-11-21 00:00:00

abstract：:Limb length inequality results from many types of musculoskeletal disorders. Asymmetric weight bearing from a limb length discrepancy of less than 2% can have debilitating consequences such as back problems and early-onset osteoarthritis. Existing treatments include invasive surgeries and/or drug regimens that are oft...

journal_title：Frontiers in endocrinology

authors： Racine HL,Meadows CA,Ion G,Serrat MA

更新日期：2018-06-04 00:00:00

abstract：:The past two decades have witnessed many advances in the prevention, treatment, and control of diabetes mellitus (DM) and its complications. Increased screening has led to a greater recognition of type 2 diabetes mellitus (type 2 DM) and prediabetes; however, Hispanics/Latinos, the largest minority group in the US, ha...

journal_title：Frontiers in endocrinology

authors： Avilés-Santa ML,Colón-Ramos U,Lindberg NM,Mattei J,Pasquel FJ,Pérez CM

更新日期：2017-11-10 00:00:00

abstract：:After decades of primarily morphological study, positional cloning of the NPHS1 gene was the landmark event that established aberrant podocyte genetics as a pivotal cause of malfunction of the glomerular filter. This ended any uncertainty whether genetic mutation plays a significant role in hereditary nephrotic syndro...

journal_title：Frontiers in endocrinology

authors： Bierzynska A,Soderquest K,Koziell A

更新日期：2015-01-23 00:00:00

abstract：:Objective: Circulating free DNA (cfDNA) in general and circulating tumor DNA (ctDNA) in particular is becoming an increasingly used form of liquid biopsy biomarkers. In this study, we are investigating the ability to detect ctDNA from the plasma of pituitary adenoma (PA) patients. Design: Tumor tissue samples were obt...

journal_title：Frontiers in endocrinology

authors： Megnis K,Peculis R,Rovite V,Laksa P,Niedra H,Balcere I,Caune O,Breiksa A,Nazarovs J,Stukens J,Konrade I,Pirags V,Klovins J

更新日期：2019-09-18 00:00:00

abstract：:The islet amyloid polypeptide (IAPP) or amylin maintains a key role in metabolism. This 37-residues-peptide could form pancreatic amyloids, which are a characteristic feature of diabetes mellitus type 2. However, some species do not form amyloid fibril structures. By employing a biomimetic approach, we generated an ex...

journal_title：Frontiers in endocrinology

authors： Pulido-Capiz A,Díaz-Molina R,Martínez-Navarro I,Guevara-Olaya LA,Casanueva-Pérez E,Mas-Oliva J,Rivero IA,García-González V

更新日期：2018-06-25 00:00:00

abstract：:Fibroblast growth factor 21 (FGF21) is a pleotropic metabolic regulator, expression of which is elevated during fasting. To this end, the precise role played by FGF21 in the biology of fasting has been the subject of several recent studies, which have demonstrated contributions to the regulation of both lipid and carb...

journal_title：Frontiers in endocrinology

authors： Antonellis PJ,Hayes MP,Adams AC

更新日期：2016-06-30 00:00:00

abstract：:In the regulated secretory pathway, secretory granules (SGs) store peptide hormones that are released on demand. SGs are formed at the trans-Golgi network and must undergo a maturation process to become responsive to secretagogues. The production of mature SGs requires concentrating newly synthesized soluble content p...

journal_title：Frontiers in endocrinology

authors： Bonnemaison ML,Eipper BA,Mains RE

更新日期：2013-08-14 00:00:00

abstract：:Introduction: Although pre-treatment with a GnRH agonist can reduce the size of adenomyosis lesions, the supra-physiological hormone level induced by controlled ovarian hyperstimulation (COH) may negate the usefulness of the GnRH agonist in patients with adenomyosis lesions, leading to continued poor outcomes in fresh...

journal_title：Frontiers in endocrinology

authors： Chen M,Luo L,Wang Q,Gao J,Chen Y,Zhang Y,Zhou C

更新日期：2020-05-29 00:00:00

abstract：:Peroxisome proliferator-activated receptor gamma (PPARγ) is a member of a nuclear receptor superfamily and acts as a ligand-dependent transcription factor, playing key roles in maintenance of adipose tissue and in regulation of glucose and lipid homeostasis. This receptor is the target of thiazolidinediones, a class o...

journal_title：Frontiers in endocrinology

authors： Ribeiro Filho HV,Bernardi Videira N,Bridi AV,Tittanegro TH,Helena Batista FA,de Carvalho Pereira JG,de Oliveira PSL,Bajgelman MC,Le Maire A,Figueira ACM

更新日期：2018-02-01 00:00:00

abstract：:Pituitary adenomas are common neoplasms. Their classification is based upon size, invasion of adjacent structures, sporadic or familial cases, biochemical activity, clinical manifestations, morphological characteristics, response to treatment and recurrence. Although they are considered benign tumors, some of them are...

journal_title：Frontiers in endocrinology

authors： Syro LV,Rotondo F,Ramirez A,Di Ieva A,Sav MA,Restrepo LM,Serna CA,Kovacs K

更新日期：2015-06-12 00:00:00

abstract：Background:In adults, excess adiposity has been associated with low-grade, chronic inflammation and compromised bone health, but less is known about these linkages in children. The purpose of this study was to compare the circulating levels of inflammatory cytokines, adipokines, osteokines, and bone markers at rest and...

journal_title：Frontiers in endocrinology

authors： Kurgan N,McKee K,Calleja M,Josse AR,Klentrou P

更新日期：2020-12-11 00:00:00

abstract：:The steroid module of the Athlete Biological Passport, the newest innovation in doping testing, is currently being finalized for implementation. Several factors, other than doping, can affect the longitudinal steroid profile. In this study, we investigated the effect of hormonal contraceptives (HC) as well as the effe...

journal_title：Frontiers in endocrinology

authors： Schulze JJ,Mullen JE,Berglund Lindgren E,Ericsson M,Ekström L,Hirschberg AL

更新日期：2014-04-10 00:00:00

abstract：:Enteroendocrine cells lining the gut epithelium constitute the largest endocrine organ in the body and secrete over 20 different hormones in response to cues from ingested foods and changes in nutritional status. Not only do these hormones convey signals from the gut to the brain via the gut-brain axis, they also act ...

journal_title：Frontiers in endocrinology

authors： Sun EWL,Martin AM,Young RL,Keating DJ

更新日期：2019-01-04 00:00:00

abstract：:The world-wide obesity epidemic constitutes a severe threat to human health and wellbeing and poses a major challenge to health-care systems. Current therapeutic approaches, relying mainly on reduced energy intake and/or increased exercise energy expenditure, are generally of limited effectiveness. Previously believed...

journal_title：Frontiers in endocrinology

authors： Betz MJ,Enerbäck S

更新日期：2011-11-29 00:00:00

abstract：:Clear evidence indicates that cytokines, for instance, adipokines, hepatokines, inflammatory cytokines, myokines, and osteokines, contribute substantially to the development of abnormal glucose and lipid metabolism. Some cytokines play a positive role in metabolism action, while others have a negative metabolic role l...

journal_title：Frontiers in endocrinology

authors： Shi J,Fan J,Su Q,Yang Z

更新日期：2019-10-30 00:00:00

abstract：:Graves' disease (GD) is an organ-specific autoimmune disease, and thyrotropin (TSH) receptor (TSHR) is a major autoantigen in this condition. Since the extracellular domain of human TSHR (TSHR-ECD) is shed into the circulation, TSHR-ECD is a preferentially immunogenic portion of TSHR. Both genetic factors and environm...

journal_title：Frontiers in endocrinology

authors： Inaba H,De Groot LJ,Akamizu T

更新日期：2016-08-23 00:00:00

abstract：:The estimated number of testicular olfactory receptors (ORs) in mammals range between 20 and 66. Previous data reported the role of hOR17-4 and mOR23 in sperm-oocyte chemiotaxis. Proteomic analysis was performed to understand which are the ORs expressed in seminal plasma. Seminal samples by four fertile men were analy...

journal_title：Frontiers in endocrinology

authors： Milardi D,Colussi C,Grande G,Vincenzoni F,Pierconti F,Mancini F,Baroni S,Castagnola M,Marana R,Pontecorvi A

更新日期：2018-01-23 00:00:00