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Adrenal hormones

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https://www.readbyqxmd.com/read/28210018/psychological-stress-and-changes-of-hypothalamic-pituitary-adrenal-axis-in-patients-with-de-novo-parkinson-s-disease
#1
Omer C Ibrahimagic, Amra Cickusic Jakubovic, Dzevdet Smajlovic, Zikrija Dostovic, Suljo Kunic, Amra Iljazovic
INTRODUCTION: Psychological stress and changes in hypothalamic-pituitary-adrenal (HPA) axis in period after diagnosis of "de novo" Parkinson disease (PD) could be a big problem for patients. MATERIALS AND METHODS: We measured psychological stress and changes in hypothalamic-pituitary-adrenal axis (HPA) in thirty patients (15:15) with "de novo" Parkinson's disease, average age 64.17 ± 13.19 (28-82) years (Department of Neurology, University Clinical Center Tuzla)...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28202512/tumor-associated-neutrophils-and-macrophages-promote-gender-disparity-in-hepatocellular-carcinoma-in-zebrafish
#2
Chuan Yan, Qiqi Yang, Zhiyuan Gong
Hepatocellular carcinoma (HCC) occurs more frequently and aggressively in men than women, but the mechanistic basis of this gender disparity is obscure. Chronic inflammation is a major etiological factor in HCC, so we investigated the role of cortisol in gender discrepancy in a zebrafish model of HCC. Inducible expression of oncogenic KrasV12 in hepatocytes of transgenic zebrafish resulted in accelerated liver tumor progression in males. These tumors were more heavily infiltrated with tumor-associated neutrophils (TAN) and macrophages (TAM) versus females, and they both showed pro-tumor gene expression and promoted tumor progression...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28196601/cholinergic-signals-from-the-cns-regulate-g-csf-mediated-hsc-mobilization-from-bone-marrow-via-a-glucocorticoid-signaling-relay
#3
Halley Pierce, Dachuan Zhang, Claire Magnon, Daniel Lucas, John R Christin, Matthew Huggins, Gary J Schwartz, Paul S Frenette
Hematopoietic stem cells (HSCs) are mobilized from niches in the bone marrow (BM) to the blood circulation by the cytokine granulocyte colony-stimulating factor (G-CSF) through complex mechanisms. Among these, signals from the sympathetic nervous system regulate HSC egress via its niche, but how the brain communicates with the BM remains largely unknown. Here we show that muscarinic receptor type-1 (Chrm1) signaling in the hypothalamus promotes G-CSF-elicited HSC mobilization via hormonal priming of the hypothalamic-pituitary-adrenal (HPA) axis...
February 4, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28193212/corticomedullary-mixed-tumour-resembling-a-small-adrenal-gland-involvement-of-cancer-stem-cells-case-report
#4
Lian Duan, Fang Fang, Wanlei Fu, Zhenqiang Fang, Hui Wang, Shicang Yu, Zili Tang, Zhenqi Liu, Hongting Zheng
BACKGROUND: Adrenal corticomedullary mixed tumours are very rare. Its mechanism is rarely reported. Here we report the first case of a corticomedullary mixed tumour resembling a "small adrenal gland" with distinct arrangement of the cortical and medullary layers. We further hypothesize regarding the tumorigenic mechanism of this tumour. CASE PRESENTATION: A 58-year man had been diagnosed with diabetes and hypertension for 3 years. His 24-h urine vanillylmandelic acid (VMA) levels were slightly elevated...
February 13, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28191381/spontaneous-unilateral-adrenal-hemorrhage-in-pregnancy
#5
Salam Kadhem, Rawaa Ebrahem, Cyrus Munguti, Rami Mortada
Spontaneous adrenal hemorrhage (SAH) is a serious medical condition associated with variable clinical presentation depending on the extent of the hemorrhage. Pregnancy-induced adrenal hemorrhage is poorly understood. A low cortisol level in the peripartum period with radiological findings is sufficient to establish the diagnosis. Prompt hormone replacement and supportive care to ensure good clinical outcomes is crucial. Due to the potentially life-threatening complications, physicians should have a high suspicion for adrenal hemorrhage when they evaluate patients with hypotension, fatigue, and abdominal pain during the peripartum period...
January 13, 2017: Curēus
https://www.readbyqxmd.com/read/28188961/high-serum-progesterone-associated-with-infertility-in-a-woman-with-nonclassic-congenital-adrenal-hyperplasia
#6
Yoshimasa Kawarai, Hiroshi Ishikawa, Tomoya Segawa, Shokichi Teramoto, Tomoaki Tanaka, Makio Shozu
Nonclassic congenital adrenal hyperplasia (NCAH) is an autosomal-recessive disorder caused by 21-hydroxylase deficiency and manifests as hirsutism and oligomenorrhea due to excess adrenal androgen and progesterone. We report a case of a woman with NCAH who showed continuous high serum progesterone levels in the follicular phase associated with impaired folliculogenesis. NCAH was diagnosed based on high 17-hydroxyprogesterone levels after rapid adrenocorticotropic hormone loading, and three heterozygous missense mutations in CYP21A2, encoding 21-hydroxylase, were identified...
February 11, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28186359/testosterone-supplementation-glucocorticoid-milieu-and-bone-homeostasis-in-the-ageing-male
#7
REVIEW
Vladimir Z Ajdžanović, Branko R Filipović, Branka T Šošić Jurjević, Verica Lj Milošević
Male ageing is entwined with a continuous fall in free testosterone levels, which contributes to the pathogenesis of bone loss. Glucocorticoid excess, either dependent on the ageing process or iatrogenically induced, was found to additionally impair the bone structure and metabolism. Cautious testosterone supplementation in this respect may positively affect the glucocorticoid milieu and bone homeostasis, while testosterone-induced changes in the glucocorticoid output could serve as a determinant of bone-related therapeutic outcome...
February 10, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28186107/blubber-transcriptome-response-to-acute-stress-axis-activation-involves-transient-changes-in-adipogenesis-and-lipolysis-in-a-fasting-adapted-marine-mammal
#8
J I Khudyakov, C D Champagne, L M Meneghetti, D E Crocker
Stress can compromise an animal's ability to conserve metabolic stores and participate in energy-demanding activities that are critical for fitness. Understanding how wild animals, especially those already experiencing physiological extremes (e.g. fasting), regulate stress responses is critical for evaluating the impacts of anthropogenic disturbance on physiology and fitness, key challenges for conservation. However, studies of stress in wildlife are often limited to baseline endocrine measurements and few have investigated stress effects in fasting-adapted species...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28183214/appearance-of-a-thymic-mass-after-treatment-of-cushing-s-syndrome
#9
Alessandro P Delitala, Laura Olita, Carla Piras, Rossella Cosseddu, Giorgio Bagella, Giuseppe Fanciulli
A 23-year-old woman was referred to our center with hirsutism, acne, weight gain, weakness, and irregular menses. Laboratory tests revealed increased levels of cortisol and sex hormones, and reduced adrenocorticotropic hormone levels. The patient underwent a right adrenalectomy. Pathology of the resected right adrenal gland showed an adrenal carcinoma. Computed tomography 8 months after the surgery revealed a thymic mass that was not detected preoperatively. The frequency of rebound thymic hyperplasia after normalization of hypercortisolism is not known, but possibly as high as 40%...
February 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28181818/recommendations-for-the-management-of-adrenal-incidentalomas-what-is-pertinent-for-radiologists
#10
Anju Sahdev
Adrenal incidentalomas are unsuspected, asymptomatic adrenal masses detected on imaging. Most are non-functioning benign adrenocortical adenomas, but can represent other benign lesions or lesions requiring therapeutic intervention including adrenocortical carcinoma, pheochromocytoma, hormone-producing adenoma or metastasis. This review summarises and highlights radiological recommendations within the recently issued guidelines for the management of adrenal incidentalomas from European Society of Endocrinology Clinical Practice in collaboration with European Network for Study of Adrenal Tumours...
February 9, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28179626/hypothalamic-pituitary-adrenal-axis-dysregulation-and-double-product-increases-potentiate-ischemic-heart-disease-risk-in-a-black-male-cohort-the-sabpa-study
#11
Leoné Malan, Christiaan E Schutte, Ala'a Alkerwi, Saverio Stranges, Nicolaas T Malan
Emotional distress has been associated with a poorer prognosis in myocardial infarction patients. Elevated adrenocorticotrophic hormone (ACTH), lower cortisol, dehydroepiandrosterone sulfate (DHEAS) and cortisol:DHEAS, as measures of emotional distress, might correlate with silent myocardial ischemia (SMI) and workload. Thus, we assessed the relationship between emotional distress, SMI and double product (systolic blood pressure (SBP) × heart rate). Cross-sectional South African biethnic single-set cohorts (N=378), aged 44...
February 9, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28178580/dual-hormone-stress-reactivity-predicts-downstream-war-zone-stress-evoked-ptsd
#12
Robert A Josephs, Adam R Cobb, Cynthia L Lancaster, Han-Joo Lee, Michael J Telch
BACKGROUND: The crucial role of the hypothalamic-pituitary-adrenal axis (HPA) in stress-related homeostasis suggests dysregulated HPA involvement in the pathogenesis of post-traumatic stress disorder (PTSD), yet most studies examining linkages between HPA axis measures and PTSD have yielded null findings. One untested explanation for this inconsistency is a failure to account for simultaneous adrenal and gonadal influence. Here we tested the singular and interactive effects of cortisol (CR) and testosterone (TR) reactivity as moderators of war-zone stress evoked PTSD emergence in the war-zone...
January 19, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28173996/perifornical-hypothalamic-pathway-to-the-adrenal-gland-role-for-glutamatergic-transmission-in-the-glucose-counter-regulatory-response
#13
A Sabetghadam, W S Korim, A J M Verberne
Adrenaline is an important counter-regulatory hormone that helps restore glucose homeostasis during hypoglycaemia. However, the neurocircuitry that connects the brain glucose sensors and the adrenal sympathetic outflow to the chromaffin cells is poorly understood. We used electrical microstimulation of the perifornical hypothalamus (PeH) and the rostral ventrolateral medulla (RVLM) combined with adrenal sympathetic nerve activity (ASNA) recording to examine the relationship between the RVLM, the PeH and ASNA...
February 2, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28171850/marital-status-as-a-predictor-of-diurnal-salivary-cortisol-levels-and-slopes-in-a-community-sample-of-healthy-adults
#14
Brian Chin, Michael L M Murphy, Denise Janicki-Deverts, Sheldon Cohen
Married people tend to be healthier than both the previously (bereaved, divorced, and separated) and never married, but the mechanisms through which this occurs remain unclear. To this end, research has increasingly focused on how psychological stress experienced by unmarried versus married individuals may differentially impact physiological systems related to health. One key system that is modulated by stress is the hypothalamic-pituitary-adrenal (HPA) axis, of which cortisol is a key hormonal product. Increased cortisol production and disruption of cortisol's daily rhythm have been linked to poorer health outcomes...
January 19, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28163695/acth-action-on-messenger-rna-stability-mechanisms
#15
Agnès Desroches-Castan, Jean-Jacques Feige, Nadia Cherradi
The regulation of mRNA stability has emerged as a critical control step in dynamic gene expression. This process occurs in response to modifications of the cellular environment, including hormonal variations, and regulates the expression of subsets of proteins whose levels need to be rapidly adjusted. Modulation of messenger RNA stability is usually mediated by stabilizing or destabilizing RNA-binding proteins (RNA-BP) that bind to the 3'-untranslated region regulatory motifs, such as AU-rich elements (AREs)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28146078/metabolomic-biomarkers-in-urine-of-cushing-s-syndrome-patients
#16
Alicja Kotłowska, Tomasz Puzyn, Krzysztof Sworczak, Piotr Stepnowski, Piotr Szefer
Cushing's syndrome (CS) is a disease which results from excessive levels of cortisol in the human body. The disorder is associated with various signs and symptoms which are also common for the general population not suffering from compound hypersecretion. Thus, more sensitive and selective methods are required for the diagnosis of CS. This follow-up study was conducted to determine which steroid metabolites could serve as potential indicators of CS and possible subclinical hypercortisolism in patients diagnosed with so called non-functioning adrenal incidentalomas (AIs)...
January 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28145028/effects-of-steroidal-antiandrogen-or-5-alpha-reductase-inhibitor-on-prostate-tissue-hormone-content
#17
Yasuhiro Shibata, Seiji Arai, Yoshiyuki Miyazawa, Takahiro Shuto, Masashi Nomura, Yoshitaka Sekine, Hidekazu Koike, Hiroshi Matsui, Kazuto Ito, Kazuhiro Suzuki
BACKGROUND: The effects of a steroidal antiandrogen (AA) and 5-alpha-reductase inhibitor (5ARI) on prostate tissue hormone content and metabolism are not fully elucidated. The objective of this study is to investigate the hormone content and metabolism of the prostate tissues of patients treated with AA or 5ARI using the ultra-sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method. METHODS: Thirty-nine patients with benign prostatic hyperplasia (BPH) undergoing transurethral surgery were included...
February 1, 2017: Prostate
https://www.readbyqxmd.com/read/28142338/toxicity-assessment-of-molindone-hydrochloride-a-dopamine-d2-d5-receptor-antagonist-in-juvenile-and-adult-rats
#18
Gopala Krishna, Gopa Gopalakrishnan, Saryu Goel
Neuroleptic drug molindone hydrochloride is a dopamine D2/D5 receptor antagonist and it is in late stage development for the treatment of impulsive aggression in children and adolescents who have attention deficient/hyperactivity disorder (ADHD). This new indication for this drug would expand the target population to include younger patients, and therefore, toxicity assessments in juvenile animals were undertaken in order to determine susceptibility differences, if any, between this age group and the adult rats...
January 31, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28137650/functional-evidence-that-the-nucleus-of-the-hippocampal-commissure-shows-an-earlier-activation-from-a-stressor-than-the-paraventricular-nucleus-implication-of-an-additional-structural-component-of-the-avian-hypothalamo-pituitary-adrenal-axis
#19
Gurueswar Nagarajan, Seong W Kang, Wayne J Kuenzel
Despite extensive data addressing the regulation of the hypothalamo-pituitary-adrenal (HPA) axis in vertebrates, the neuroendocrine regulation of stress in birds remains incomplete. The paraventricular nucleus (PVN) contains the key neuropeptides, corticotropin releasing hormone (CRH) and arginine vasotocin (AVT), containing neurons. However, another population of CRH neurons was recently identified in a septal nucleus called the nucleus of the hippocampal commissure (NHpC). Therefore, the current study investigated changes in gene expression of CRH and AVT in the PVN and CRH in the NHpC, as well as changes in plasma corticosterone concentrations following a stressor, food deprivation...
January 27, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28134998/endocannabinoid-signaling-and-the-hypothalamic-pituitary-adrenal-axis
#20
Cecilia J Hillard, Margaret Beatka, Jenna Sarvaideo
The elucidation of Δ9-tetrahydrocannabinol as the active principal of Cannabis sativa in 1963 initiated a fruitful half-century of scientific discovery, culminating in the identification of the endocannabinoid signaling system, a previously unknown neuromodulatory system. A primary function of the endocannabinoid signaling system is to maintain or recover homeostasis following psychological and physiological threats. We provide a brief introduction to the endocannabinoid signaling system and its role in synaptic plasticity...
December 6, 2016: Comprehensive Physiology
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