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Adrenal Gland AND Hormones

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https://www.readbyqxmd.com/read/28920935/spinal-cord-injury-induced-immunodeficiency-is-mediated-by-a-sympathetic-neuroendocrine-adrenal-reflex
#1
Harald Prüss, Andrea Tedeschi, Aude Thiriot, Lydia Lynch, Scott M Loughhead, Susanne Stutte, Irina B Mazo, Marcel A Kopp, Benedikt Brommer, Christian Blex, Laura-Christin Geurtz, Thomas Liebscher, Andreas Niedeggen, Ulrich Dirnagl, Frank Bradke, Magdalena S Volz, Michael J DeVivo, Yuying Chen, Ulrich H von Andrian, Jan M Schwab
Acute spinal cord injury (SCI) causes systemic immunosuppression and life-threatening infections, thought to result from noradrenergic overactivation and excess glucocorticoid release via hypothalamus-pituitary-adrenal axis stimulation. Instead of consecutive hypothalamus-pituitary-adrenal axis activation, we report that acute SCI in mice induced suppression of serum norepinephrine and concomitant increase in cortisol, despite suppressed adrenocorticotropic hormone, indicating primary (adrenal) hypercortisolism...
September 18, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28915118/delayed-diagnosis-of-proopiomelanocortin-pomc-deficiency-with-type-1-diabetes-in-a-9-year-old-girl-and-her-infant-sibling
#2
Elif Ozsu, Allison Bahm
BACKGROUND: Proopiomelanocortin (POMC) protein, encoded by the POMC gene, is the precursor of adrenocorticotropic hormone (ACTH) that is released from the anterior pituitary gland. Homozygous mutations in the POMC gene is associated with hyperphagia, severe and early-onset obesity, adrenal insufficiency, hypopigmentation of the skin and red hair. CASE PRESENTATION: A 9-year-old girl from a consanguineous family of Iraqi origin was diagnosed with type 1 diabetes...
September 15, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28911179/deciphering-the-function-of-the-blunt-circadian-rhythm-of-melatonin-in-the-newborn-lamb-impact-on-adrenal-and-heart
#3
Maria Seron-Ferre, Claudia Torres-Farfan, Francisco J Valenzuela, Sebastian Castillo-Galan, Auristela Rojas, Natalia Mendez, Henry Reynolds, Guillermo J Valenzuela, Anibal J Llanos
Neonatal lambs, as with human and other neonates, have low arrhythmic endogenous levels of melatonin for several weeks until they start their own pineal rhythm of melatonin production at approximately 2 weeks of life. During pregnancy, daily rhythmic transfer of maternal melatonin to the fetus has important physiological roles in sheep, nonhuman primates, and rats. This melatonin rhythm provides a circadian signal and also participates in adjusting the physiology of several organs in preparation for extrauterine life...
September 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28899903/socs3-expression-in-sf1-cells-regulates-adrenal-differentiation-and-exercise-performance
#4
João Ab Pedroso, Pedro Omori Ribeiro de Mendonça, Marco As Fortes, Igor Tomaz, Vitor L Pecorali, Thais B Auricino, Ismael C Costa, Leandro B Lima, Isadora C Furigo, Debora N Bueno, Angela M Ramos-Lobo, Claudimara Ferini Pacicco Lotfi, Jose Donato
Many hormones/cytokines are secreted in response to exercise and cytokine signaling may play a pivotal role in the training adaptations. To investigate the importance of cytokine signaling during vertical ladder climbing, a resistance exercise model, we produced mice lacking SOCS3 protein exclusively in steroidogenic factor-1 (SF1) cells (SF1 Socs3 KO mice). SF1 expression is found in steroidogenic cells of the adrenal cortex and gonads, as well as in neurons of the ventromedial nucleus of the hypothalamus...
September 12, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28889777/assessment-of-neonatal-adrenal-size-using-high-resolution-2d-ultrasound-and-its-correlation-with-birth-demographics-clinical-outcomes
#5
Tijen Karsli, Diana Strickland, Jeffrey Livingston, Qiang Wu, Maroun J Mhanna, Prem S Shekhawat
OBJECTIVE: Assessment of adrenal function in a sick neonate remains a challenge in spite of major advances in neonatal care. We used 2D ultrasound of adrenal glands to assess maturity of adrenal glands in extremely preterm infants and sick term and near term infants. STUDY DESIGN: We collected demographics details of 99 mother-infants pairs (24-41 weeks) and obtained 2D ultrasound scans of adrenal glands in first week of life to measure adrenal volume, fetal zone size and adrenal to kidney ratios...
September 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28887710/increased-mortality-in-patients-with-adrenal-incidentalomas-and-autonomous-cortisol-secretion-a-13-year-retrospective-study-from-one-center
#6
Jekaterina Patrova, Magnus Kjellman, Hans Wahrenberg, Henrik Falhammar
PURPOSE: To compare long-term outcomes in patients with adrenal incidentalomas (AIs) with the response to a 1 mg overnight dexamethasone suppression test (DST). METHODS: Consecutive patients with "non-functional" AIs (n = 365) were examined. Patients with overt hormone excess, adrenocortical cancer and known malignancy had been excluded. Patients were classified to normal cortisol secretion group (n = 204, DST ≤ 50 nmol/l), possible autonomous cortisol secretion group (n = 128, DST 51-138 nmol/l) and autonomous cortisol secretion group (n = 33, DST ≥ 138 nmol/l)...
September 8, 2017: Endocrine
https://www.readbyqxmd.com/read/28877721/a-case-of-adrenocoricotrophic-hormone-independent-bilateral-adrenocortical-macronodular-hyperplasia-concomitant-with-primary-aldosteronism
#7
Mao Tokumoto, Naoyoshi Onoda, Yukie Tauchi, Shinichiro Kashiwagi, Satoru Noda, Norikazu Toi, Masahumi Kurajoh, Masahiko Ohsawa, Yuto Yamazaki, Hironobu Sasano, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: Adrenocoricotrophic hormone (ACTH) - independent bilateral adrenocortical macronodular hyperplasia (AIMAH) is a rare cause of Cushing's syndrome, and is characterized by bilateral adrenal hyperplasia. However, Primary aldosteronism (PA) is a relatively common adrenal disease. CASE PRESENTATION: A 56-year-old man who has been treated hypertension and diabetes mellitus was detected low plasma potassium level with an elevated level of plasma aldosterone concentration and bilateral adrenal swelling...
September 6, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28871578/secondary-adrenal-insufficiency-following-nivolumab-therapy-in-a-patient-with-metastatic-renal-cell-carcinoma
#8
Toshiro Seki, Atsushi Yasuda, Masayuki Oki, Natsumi Kitajima, Atsushi Takagi, Nobuyuki Nakajima, Akira Miyajima, Masafumi Fukagawa
Currently, nivolumab (an anti-programmed cell death-1 receptor monoclonal antibody) is available for many types of advanced cancers in Japan. However, there have been few detailed case reports about endocrine-related adverse events of this therapy. Here, we report a patient with metastatic renal cell carcinoma who presented with secondary adrenal insufficiency following nivolumab therapy. Endocrinological assessment by rapid adrenocorticotropic hormone (ACTH) and corticotropin-releasing hormone (CRH) tests revealed that the patient's disorder was a secondary adrenal insufficiency due to pituitary dysfunction...
September 20, 2017: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/28866749/the-radiographically-diagnosed-adrenal-myelolipoma-what-do-we-really-know
#9
Michael J Campbell, Mary Obasi, Bingling Wu, Michael T Corwin, Ghaneh Fananapazir
PURPOSE: Adrenal myelolipomas are uncommon, benign tumors of the adrenal glands that are not routinely evaluated for autonomous hormone secretion or followed by repeat imaging, but may lead to retroperitoneal hemorrhage. Little is known about the natural history these tumors with the majority of previous publications being confined to case reports and small case series. METHODS: We reviewed the computed tomography (CT) reports of 62,279 patients evaluated at a tertiary referral center between 2002 and 2015 for the presence of an adrenal myelolipoma >1 cm in size...
September 2, 2017: Endocrine
https://www.readbyqxmd.com/read/28865224/direct-effect-of-hypothalamic-neuropeptides-on-the-release-of-catecholamines-by-adrenal-medulla-in-sheep-study-ex-vivo
#10
D Wrońska, B F Kania, M Błachuta
Stress causes the activation of both the hypothalamic-pituitary-adrenocortical axis and sympatho-adrenal system, thus leading to the release from the adrenal medulla of catecholamines: adrenaline and, to a lesser degree, noradrenaline. It has been established that in addition to catecholamines, the adrenomedullary cells produce a variety of neuropeptides, including corticoliberine (CRH), vasopressin (AVP), oxytocin (OXY) and proopiomelanocortine (POMC) - a precursor of the adrenocorticotropic hormone (ACTH)...
March 1, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28865222/evaluation-of-intra-testicular-injections-of-calcium-chloride-and-4-vinylcyclohexene-1-2-monoepoxide-for-chemical-sterilization-in-guinea-pigs
#11
C C Sen, N Yumusak, R Faundez, F Temamogullari, A Taskin
This study was aimed at investigating the use of intra-testicular calcium chloride (CaCl2) and 4-vinylcyclohexene 1,2-monoepoxide (VCM) injections as a side effect-free alternative method for the control of reproduction in guinea pigs. Fifty male guinea pigs were randomly assigned to five groups. In all groups, the chemical agents were injected into both testes in 1% lidocaine hydrochloride. While Groups I, II and III were administered with a single dose (0.25 mL) of sterile physiological saline, 15 mg/100 g CaCl2, and 240 mg/kg VCM, respectively, Group IV and V received a daily dose of 15 mg/100 g CaCl2, and 240 mg/kg VCM for 3 days, respectively...
March 1, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28862247/ectopic-adrenocorticotropic-hormone-syndrome-in-a-case-of-duodenal-neuroendocrine-tumor-presenting-with-liver-metastasis
#12
J Khare, S Daga, S Nalla, P Deb
Ectopic adrenocorticotropic hormone (ACTH) syndrome is an uncommon disorder and comprises about 15% of all patients with Cushing's syndrome (CS). Duodenal carcinoids are rare, indolent tumors usually associated with a benign progression. We hereby report a rare case of CS resulting from ectopic ACTH secretion from a duodenal neuroendocrine tumor (NET) presenting with liver metastasis. A 37-year-old female presented with abdominal discomfort and dyspepsia of 1-month duration. Ultrasound abdomen suggested a well-defined hypoechoic lesion in the left lobe of the liver, suggestive of neoplasia...
August 31, 2017: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/28859148/stellate-ganglion-block-attenuates-chronic-stress-induced-depression-in-rats
#13
Weiwei Wang, Weidong Shi, Hua Qian, Xijin Deng, Tong Wang, Wenzhi Li
BACKGROUND: Stress is a significant factor in the etiology of depression. Stellate ganglion block (SGB) has been shown to maintain the stability of the autonomic system and to affect the neuroendocrine system, including the hypothalamic-pituitary-adrenal (HPA) axis. The objective of this study was to determine the antidepressant-like effects of SGB on the autonomic system and the HPA axis, apoptosis-related proteins, related spatial learning and memory impairment, and sensorimotor dysfunction...
2017: PloS One
https://www.readbyqxmd.com/read/28855243/update-on-angiotensin-ii-new-endocrine-connections-between-the-brain-adrenal-glands-and-the-cardiovascular-system
#14
Frans Leenen, Mordecai P Blaustein, John Hamlyn
In the brain, angiotensinergic pathways play a major role in chronic regulation of cardiovascular and electrolyte homeostasis. Increases in plasma angiotensin II (Ang II), aldosterone, [Na+] and cytokines can directly activate these pathways. Chronically, these stimuli also activate a slow neuromodulatory pathway involving local aldosterone, mineralocorticoid receptors (MRs), epithelial sodium channels, and endogenous ouabain (EO). This pathway increases AT1R and NADPH oxidase subunits, and maintains/further increases activity of angiotensinergic pathways...
August 30, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28816283/-surgery-treatment-of-ectopic-adrenocorticotrophic-hormone-syndrome
#15
H Fan, H Z Li, W F Xu, Z G Ji, Y S Zhang
OBJECTIVE: To investigation the diagnosis and treatment of ectopic adrenocorticotrophic hormone (ACTH) syndrome. METHODS: The clinical characters of 57 cases of ecotopic ACTH syndrome from Jan. 1996 to Dec. 2016 were collected and analyzed. The 57 cases included 32 males and 25 females. The age ranged from 11 to 68 years (average 32 years). ACTH levels significantly increased from 16.5 to 365.6 pmol/L, with average 77.6 pmol/L (normal range <10.1 pmol/L). The pituitary MRI did not found lesions...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28815561/early-segregation-of-the-adrenal-cortex-and-gonad-in-chicken-embryos
#16
Daisuke Saito, Koji Tamura, Yoshiko Takahashi
The adrenal gland is an endocrine organ that plays essential roles in stress responses. This organ consists of two types of tissues, adrenomedulla and adrenocortex, deriving from different embryonic origins. Whereas it is well accepted that the adrenomedulla derives from neural crest cells, the origin of the adrenocortex remains elusive. In addition, the adrenocortex and gonads, two major steroid hormone-producing tissues, have been thought to share the same origin, although the experimental evidence is lacking...
September 2017: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/28814582/adrenal-myelolipoma-s-as-presenting-manifestation-of-subclinical-cushing-s-disease-eutopic-acth-dependent-cushing-s-syndrome
#17
Partha Pratim Chakraborty, Shinjan Patra, Sugata Narayan Biswas, Rana Bhattacharjee
Primary adrenal myelolipomas, relatively rare benign tumours of the adrenal cortex are typically unilateral, hormonally inactive and asymptomatic, hence often diagnosed as 'adrenal incidentaloma'. Bilateral adrenal myelolipomas, in particular, may be associated with underlying endocrinopathies associated with elevated circulating adrenocorticotropic hormone (ACTH) concentration. Subclinical cortisol hypersecretion, irrespective of its ACTH dependency, does not manifest typical clinical phenotype of hypercortisolemia, and thus termed subclinical Cushing's syndrome...
August 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28811197/seasonal-changes-in-plasma-testosterone-and-cortisol-suggest-an-androgen-mediated-regulation-of-the-pituitary-adrenal-axis-in-the-tarabul-s-gerbil-gerbillus-tarabuli-thomas-1902
#18
Yamina Zatra, Naouel Aknoun-Sail, Arezki Kheddache, Abdelouafi Benmouloud, Salima Charallah, Elara N Moudilou, Jean-Marie Exbrayat, Farida Khammar, Zaina Amirat
In the desert gerbil Gerbillus tarabuli (Thomas, 1902), cortisol is the main glucocorticosteroid produced by the adrenal glands. Plasma cortisol concentrations show highest values when testosterone is reduced and lowest values during the breeding season which occurs from early winter to late spring. In order to specify the implication of testicular androgens in these corticosteroid seasonal variations we investigated the effects induced by gonadectomy performed during the breeding season on the pituitary adrenal axis...
August 12, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28795359/the-diagnostics-of-human-steroid-hormone-disorders
#19
Małgorzata Dobosz, Aneta Manda-Handzlik, Beata Pyrżak, Urszula Demkow
Disturbances of the steroidogenesis or altered peripheral metabolism of steroids may result in severe clinical manifestations. Therefore, prompt diagnosis and initiation of medical treatment are desirable. The diagnostics of disorders of steroid hormone production, metabolism, and action have been previously based on immunoassay tests. However, in a modern medical laboratory, due to low accuracy of immunoassays, this technique is continuously replaced by chromatographic separation methods coupled to mass spectrometric detection systems...
August 10, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28794862/case-report-an-incidentaloma-that-catches-your-eye-adrenal-myelolipoma
#20
Rosanna D'Addosio, Joselyn Rojas, Valmore Bermúdez, Flor Ledesma, Kyle Hoedebecke
Background: Adrenal incidentaloma refers to the incidental finding of a tumor in the adrenal gland, where nonfunctional forms are the most common variant. Myelolipoma is a rare (0.08-0.4%) occurrence characterized by adipose and hematopoietic tissue. The aim of this case report is to describe the diagnosis and appropriate management of a myelolipoma in an asymptomatic patient, which was originally considered an incidental hepatic hemangioma prior to being identified as a giant adrenal adenoma. Case description: The patient was a 54 year old obese female with a recent diagnosis of diabetes type II and dyslipidemia with recent ultrasound imaging suggestive of a hepatic hemangioma...
2017: F1000Research
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