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https://www.readbyqxmd.com/read/28649890/alteration-of-ghrelin-obestatin-ratio-in-adolescence-with-polycystic-ovarian-syndrome
#1
Weiguang Wu, Xiaobin Fan, Yuecheng Yu, Zheng Wang, Yingchun Wang
Ghrelin, an endoggenous for the growth hormone secretagogue receptor, has been shown to participate in the regulation of energy homeostasis and pituitary hormone secretion. Obestatin, encoded by the same gene as ghrelin, is described as a physiological opponent of ghrelin. Ghrelin and obestatin are altered in polycystic ovary syndrome (PCOS), which is characterized by insulin resistance and pituitary hormone secretion disorder. The aim of this study was to evaluate ghrelin/obestatin imbalance in relation to insulin resistance and pituitary hormone in adolescence with PCOS...
June 24, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28648997/effects-tolerance-mechanisms-and-management-of-salt-stress-in-grain-legumes
#2
REVIEW
Muhammad Farooq, Nirmali Gogoi, Mubshar Hussain, Sharmistha Barthakur, Sreyashi Paul, Nandita Bharadwaj, Hussein M Migdadi, Salem S Alghamdi, Kadambot H M Siddique
Salt stress is an ever-present threat to crop yields, especially in countries with irrigated agriculture. Efforts to improve salt tolerance in crop plants are vital for sustainable crop production on marginal lands to ensure future food supplies. Grain legumes are a fascinating group of plants due to their high grain protein contents and ability to fix biological nitrogen. However, the accumulation of excessive salts in soil and the use of saline groundwater are threatening legume production worldwide. Salt stress disturbs photosynthesis and hormonal regulation and causes nutritional imbalance, specific ion toxicity and osmotic effects in legumes to reduce grain yield and quality...
June 16, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28639759/-diabetes-mellitus-secondary-to-an-endocrine-pathology-when-to-think-about-it
#3
Nathalie Rouiller, François R Jornayvaz
An endocrine disease can be associated with glucose intolerance or diabetes mellitus, and the latter can falsely be considered as type 2 diabetes. Glycemic imbalance can be a direct or indirect consequence of excessive hormone production. Endocrine diseases such as acromegaly, Cushing's syndrome and pheochromocytoma can increase glucose production and cause insulin resistance. Hyperthyroidism, hyperaldosteronism, glucagonoma and somatostatinoma lead to hyperglycemia by other physiopathological mechanisms detailed in this article...
May 31, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28634083/effects-of-the-soya-isoflavone-genistein-in-early-life-stages-of-the-senegalese-sole-solea-senegalensis-thyroid-estrogenic-and-metabolic-biomarkers
#4
Carmen Sarasquete, Maria Úbeda-Manzanaro, Juan Bosco Ortiz-Delgado
This study examines the effects induced by environmentally relevant concentrations of the isoflavone genistein (3 mg/L and 10 mg/L) during early life stages of the Senegalese sole. Throughout the hypothalamus-pituitary-thyroid (HPT) axis, several neurohormonal regulatory thyroid signalling patterns (thyroglobulin/Tg, thyroid peroxidase/TPO, transthyretin/TTR, thyroid receptors/TRβ, and iodothrynonine deiodinases, Dio2 and Dio3) were analysed. Furthermore, the expression patterns of estrogen receptor ERβ and haemoprotein Cyp1a were also evaluated...
June 17, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28625952/daily-consumption-of-commercial-chicken-feed-and-meat-lead-to-alterations-in-serum-cholesterol-and-steroidal-sex-hormones-in-female-rats
#5
Saara Ahmad, Iftikhar Ahmed, Saida Haider, Zehra Batool, Saad Bilal Ahmed
Poultry consumption is increased worldwide owing to better taste, easy availability and low cost. The present study was designed to investigate the effects of the chicken feed, conventional chicken meat and organic chicken meat on the % growth rate, serum cholesterol, progesterone, testosterone and estrogen levels in female rats. Hundred female Albino Wistar rats were randomly assigned to four groups (n=25). Group I was control rats fed on standard chow, group II treated with commercial chicken feed, group III rats fed with conventional chicken meat and group IV with organic chicken meat for a period of 6 weeks...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28621341/the-gentle-art-of-saying-no-how-nitric-oxide-gets-things-done-in-the-hypothalamus
#6
REVIEW
Konstantina Chachlaki, John Garthwaite, Vincent Prevot
The chemical signalling molecule nitric oxide (NO), which freely diffuses through aqueous and lipid environments, subserves an array of functions in the mammalian central nervous system, such as the regulation of synaptic plasticity, blood flow and neurohormone secretion. In this Review, we consider the cellular and molecular mechanisms by which NO evokes short-term and long-term changes in neuronal activity. We also highlight recent studies showing that discrete populations of neurons that synthesize NO in the hypothalamus constitute integrative systems that support life by relaying metabolic and gonadal signals to the neuroendocrine brain, and thus gate the onset of puberty and adult fertility...
June 16, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/28618767/skin-findings-in-autoimmune-and-nonautoimmune-thyroid-disease-with-respect-to-thyroid-functional-status-and-healthy-controls
#7
Mümtaz Takir, Emin Özlü, Osman Köstek, Zafer Türkoğlu, Hasan Hüseyin Mutlu, Tuğba Kevser Uzunçakmak, Necmettin Akdeniz, Ayşe Serap Karadağ
BACKGROUND/AIM: Thyroid disorders are associated with a wide variety of skin disorders that respond to treatment of hormone imbalance in most cases and thus are of vital importance to dermatologists. This study aimed to evaluate skin findings associated with autoimmune and nonautoimmune thyroid disease with respect to thyroid functional status and healthy controls. MATERIALS AND METHODS: A total of 300 consecutive patients with either autoimmune (n = 173) or nonautoimmune (n = 127) thyroid disease and 100 healthy control subjects were included in this cross-sectional study...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28614118/the-renal-response-to-potassium-stress-integrating-past-with-present
#8
Cary R Boyd-Shiwarski, Arohan R Subramanya
PURPOSE OF REVIEW: The current review combines past findings with recent advances in our understanding of the homeostatic response to potassium imbalance. RECENT FINDINGS: Following the ingestion of a dietary potassium load, a combination of extrarenal and renal mechanisms act to maintain extracellular K+ within a tight window. Through hormonal regulation and direct K+ sensing, the nephron is ideally suited to respond to wide shifts in external K+ balance. Current evidence indicates that dietary K+ loading triggers a coordinated kaliuretic response that appears to involve voltage-dependent changes in sodium transport across multiple nephron segments, including the proximal tubule, medullary loop of Henle, and distal tubule...
June 12, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28613047/adolescent-gynecomastia
#9
Carly E Guss, Amy D Divasta
Gynecomastia, defined as the presence of glandular breast tissue in men, is a common, typically benign physical exam finding during adolescence. Although the exact pathogenesis of gynecomastia is unknown, it is likely due to a hormonal imbalance between estrogens and androgens. Most cases are idiopathic and do not require further evaluation if the history and physical examination are reassuring. Although the majority of cases will resolve spontaneously, surgical correction may be an option for adolescents with persistent and problematic gynecomastia...
June 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28609391/promotion-and-marketing-of-bioidentical-hormone-therapy-on-the-internet-a-content-analysis-of-websites
#10
Nese Yuksel, Laetitia Treseng, Bushra Malik, Ubaka Ogbogu
OBJECTIVE: To evaluate the quality of information presented and claims made on websites offering bioidentical hormone therapy (BHT) products or services. METHODS: A quantitative content analysis was completed on 100 websites promoting or offering BHT products or services. Websites were identified through Google search engine from September to October 2013. Search terms included "bioidentical hormone therapy" or "bioidentical progesterone," accompanied by "purchase or buy," "service," or "doctors...
June 12, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28608932/hormonal-changes-in-hemodialysis-patients-novel-risk-factors-for-mortality
#11
REVIEW
Ozkan Gungor, Ismail Kocyigit, Juan Jesus Carrero, Mahmut Ilker Yılmaz
Patients with end-stage renal disease undergoing dialysis commonly experience derangements in the hypothalamic-pituitary-gonadal axis together with alterations at the level of synthesis and clearance of many hormones. This hormonal imbalance, even if asymptomatic, has recently been associated with increased mortality in these patients. In this review, we summarize observational and mechanistic evidence linking hormonal alterations at the level of the thyroid and sex-hormone systems with this mortality risks...
June 13, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28606150/severe-hypertriglyceridemia-in-norway-prevalence-clinical-and-genetic-characteristics
#12
Kjetil Retterstøl, Ingunn Narverud, Randi Selmer, Knut E Berge, Ingvild V Osnes, Stine M Ulven, Bente Halvorsen, Pål Aukrust, Kirsten B Holven, Per O Iversen
BACKGROUND: There is a lack of comprehensive patient-datasets regarding prevalence of severe hypertriglyceridemia (sHTG; triglycerides ≥10 mmol/L), frequency of co-morbidities, gene mutations, and gene characterization in sHTG. Using large surveys combined with detailed analysis of sub-cohorts of sHTG patients, we here sought to address these issues. METHODS: We used data from several large Norwegian surveys that included 681,990 subjects, to estimate the prevalence...
June 12, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28605317/rationalized-insights-on-causes-of-rheumatoid-arthritis-in-the-elderly-and-women-special-emphasis-on-treatment-strategies
#13
Shikha Srivastava, Satish Patel, Deependra Singh, Manju Rawat Singh
Rheumatoid arthritis (RA) is an autoimmune disorder distinguished by synovial inflammation followed by destruction of joint. The pathogenesis of arthritis involves immune imbalance of the endogenous system. Causative factors include immune imbalance, oxidative stress, genetics, and environment. Continued effort has been made to treat RA via chemical, enzymatic, genetic, and hormonal approaches. RA has been reported more in the aged and in women. Arthritis necessitates lifelong administration of drugs to maintain quality of life...
2017: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/28601871/perinatal-factors-affecting-serum-hepcidin-levels-in-low-birth-weight-infants
#14
Kenji Ichinomiya, Kenichi Maruyama, Takahiro Inoue, Aya Koizumi, Fumitaka Inoue, Kazuyo Fukuda, Yu Yamazaki, Hirokazu Arakawa
BACKGROUND: Hepcidin, an iron-regulatory hormone, plays a key role in preventing iron overload. Few studies have investigated the regulation of hepcidin in low-birth-weight (LBW) infants who are vulnerable to iron imbalance. OBJECTIVES: To identify perinatal factors associated with serum hepcidin levels in LBW infants. METHODS: Ninety-two LBW infants with a median gestational age (GA) of 32.6 weeks and birth weight of 1,587 g were prospectively enrolled...
June 10, 2017: Neonatology
https://www.readbyqxmd.com/read/28585486/narrative-literature-review-health-activity-and-participation-issues-for-women-following-traumatic-brain-injury
#15
Kate O'Reilly, Nathan Wilson, Kath Peters
OBJECTIVE: This narrative review will draw attention to the current limitations within the literature related to women following traumatic brain injury in order to stimulate discussion and inform future directions for research. BACKGROUND: There is a wide-ranging body of research about traumatic brain injury with the higher incidence of brain injury among males reflected in this body of work. As a result, the specific gendered issues facing women with traumatic brain injury are not as well understood...
June 6, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28585197/human-protein-kinases-and-obesity
#16
Atilla Engin
The action of protein kinases and protein phosphatases is essential for multiple physiological responses. Each protein kinase displays its own unique substrate specificity, and a regulatory mechanism that may be modulated by association with other proteins. Protein kinases are classified by the target amino acid in their substrates. Some protein kinases can phosphorylate both serine/threonine, as well as tyrosine residues. This group of kinases has been known as dual specificity kinases. Unlike the dual specificity kinases, a heterogeneous group of protein phosphatases are known as dual-specificity phosphatases...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28576284/congenital-adrenal-hyperplasia
#17
REVIEW
Diala El-Maouche, Wiebke Arlt, Deborah P Merke
Congenital adrenal hyperplasia is a group of autosomal recessive disorders encompassing enzyme deficiencies in the adrenal steroidogenesis pathway that lead to impaired cortisol biosynthesis. Depending on the type and severity of steroid block, patients can have various alterations in glucocorticoid, mineralocorticoid, and sex steroid production that require hormone replacement therapy. Presentations vary from neonatal salt wasting and atypical genitalia, to adult presentation of hirsutism and irregular menses...
May 30, 2017: Lancet
https://www.readbyqxmd.com/read/28560021/-coexisting-pituitary-adenoma-and-suprasellar-meningioma-a-coincidence-or-causation-effect-report-of-two-cases-and-review-of-the-literature
#18
Abbas Amirjamshidi, Seyed Abolghasem Mortazavi, Mohamad Shirani, Saeed Saeedinia, Hamed Hanif
Coexistence of pituitary adenoma (PA) and another type of brain tumor is a very rare clinical scenario. Even though such a presentation can be an incidental event but a thorough review of the literature will be made to elucidate the possible mechanisms and treatment options in similar cases. Two cases of concomitant sellar and suprasellar/diaphragmatic tumors are reported. A 37-year-old lady with prolactinoma and a suprasellar diaphragmatic meningioma and a 42-year-old acromegalic man with suprasellar/diaphragmatic meningioma and a PA...
May 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28539732/influence-of-pcos-in-obese-vs-non-obese-women-from-mesenchymal-progenitors-stem-cells-and-other-endometrial-cells-an-in-silico-biomarker-discovery
#19
Ashvini Desai, Inamul Hasan Madar, Amjad Hussain Asangani, Hussain Al Ssadh, Iftikhar Aslam Tayubi
Polycystic ovary syndrome (PCOS) is endocrine system disease which affect women ages 18 to 44 where the women's hormones are imbalance. Recently it has been reported to occur in early age. Alteration of normal gene expression in PCOS has shown negative effects on long-term health issues. PCOS has been the responsible factor for the infertility in women of reproductive age group. Early diagnosis and treatment can improve the women's health suffering from PCOS. Earlier Studies shows correlation of PCOS upon insulin resistance with significant outcome, Current study shows the linkage between PCOS with obesity and non-obese patients...
2017: Bioinformation
https://www.readbyqxmd.com/read/28536437/monocrotophos-pesticide-affects-synthesis-and-conversion-of-sex-steroids-through-multiple-targets-in-male-goldfish-carassius-auratus
#20
Hua Tian, Yang Sun, Hui Wang, Xin Bing, Wei Wang, Shaoguo Ru
Monocrotophos (MCP) is an organophosphorus pesticide that is median-toxic to fish. MCP pesticide resulted in an increase of 17 beta estradiol following a decrease in testosterone in male goldfish (Carassius auratus). To fully understand the mechanism of MCP pesticide that causes the imbalance between male and female hormones, we determined the levels of plasma cholesterol, spermatic steroidogenic acute regulatory protein mRNA, steroidogenesis enzyme mRNA, plasma sex hormone synthesis intermediates, and effectual hormones in male goldfish exposed to MCP pesticide at nominal concentrations of 0...
May 23, 2017: Scientific Reports
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