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Adrenal Gland AND Hormones

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https://www.readbyqxmd.com/read/29772620/-development-of-ectopic-adrenocorticotropic-hormone-syndrome-in-a-patient-with-prostate-cancer-during-combined-androgen-blockade-therapy
#1
Yosuke Sekii, Mitsuhiro Yoshinaga, Masahiro Nakagawa, Hidefumi Kishikawa, Kazumasa Oka, Kenji Nishimura
A 74-year old man presented to us with difficulty urinating. The laboratory examinations revealed an elevated prostate-specific antigen (PSA) level. A prostate biopsy revealed prostate adenocarcinoma. The computed tomography scan showed metastasis to lymph nodes in the pelvic cavity and both adrenal glands. Combined androgen blockade therapy was started, and PSA levels began to decrease gradually. However, 2 months later, he was hospitalized for treatment of cellulitis and was found to have hypertension, hyperglycemia, and hypokalemia...
April 2018: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/29767741/gateway-reflex-neural-activation-mediated-immune-cell-gateways-in-the-central-nervous-system
#2
Daisuke Kamimura, Takuto Ohki, Yasunobu Arima, Masaaki Murakami
The neural regulation of organs can be categorized as systemic or local. Whereas systemic regulation by the hypothalamus-pituitary-adrenal gland-mediated release of steroid hormones has been well studied, the mechanisms for local regulation have only recently emerged. Two types of local neural regulation are known, the gateway reflex and the inflammatory reflex. The gateway reflex describes a mechanism that converts regional neural stimulations into inflammatory outputs by changing the state of specific blood vessels...
May 15, 2018: International Immunology
https://www.readbyqxmd.com/read/29764284/role-of-glucocorticoid-negative-feedback-in-the-regulation-of-hpa-axis-pulsatility
#3
Julia K Gjerstad, Stafford L Lightman, Francesca Spiga
The hypothalamic-pituitary-adrenal (HPA) axis is the major neuroendocrine axis regulating homeostasis in mammals. Glucocorticoid hormones are rapidly synthesized and secreted from the adrenal gland in response to stress. In addition, under basal conditions glucocorticoids are released rhythmically with both a circadian and an ultradian (pulsatile) pattern. These rhythms are important not only for normal function of glucocorticoid target organs, but also for the HPA axis responses to stress. Several studies have shown that disruption of glucocorticoid rhythms is associated with disease both in humans and in rodents...
May 15, 2018: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/29763783/sex-differences-in-the-acth-and-cortisol-response-to-pharmacological-probes-are-stressor-specific-and-occur-regardless-of-alcohol-dependence-history
#4
Robert M Anthenelli, Jaimee L Heffner, Thomas J Blom, Belinda E Daniel, Benjamin S McKenna, Gary S Wand
Women and men differ in their risk for developing stress-related conditions such as alcohol use and anxiety disorders and there are gender differences in the typical sequence in which these disorders co-occur. However, the neural systems underlying these gender-biased psychopathologies and clinical course modifiers in humans are poorly understood and may involve both central and peripheral mechanisms regulating the limbic-hypothalamic-pituitary-adrenal axis. In the present randomized, double blind, placebo-controlled, triple-dummy crossover study, we juxtaposed a centrally-acting, citalopram (2 mg/unit BMI) neuroendocrine stimulation test with a peripherally-acting, dexamethasone (Dex) (1...
May 4, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29755708/growth-and-endocrine-function-in-tunisian-thalassemia-major-patients
#5
Naouel Guirat Dhouib, Monia Ben Khaled, Monia Ouederni, Habib Besbes, Ridha Kouki, Fethi Mellouli, Mohamed Bejaoui
β-thalassemia major (β-TM) is among the most common hereditary disorders imposing high expenses on health-care system worldwide. The patient's survival is dependent on lifetime blood transfusion which leads to iron overload and its toxicity in various organs including endocrine glands. This article provides an overview of endocrine disorders in beta-TM patients. This single center investigation enrolled 28 β-TM patients (16 males, 12 females) regularly transfused with packed red cell since early years of life...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29751108/basal-glucocorticoid-receptor-activation-induces-proliferation-and-inhibits-neuronal-differentiation-of-human-induced-pluripotent-stem-cell-derived-neuronal-precursor-cells
#6
Elina Nürnberg, Sandra Horschitz, Patrick Schloss, Andreas Meyer-Lindenberg
Glucocorticoids (GC) have first been shown to originate from the adrenal glands where synthesis and release is controlled by the hypothalamic-pituitary-adrenal (HPA) axis. Recently, it was shown that GC and other steroid hormones are also synthesized in the central nervous system, so-called neurosteroids. GC bind to specific GC receptors (GR) which function as ligand-activated transcription factors. GR are expressed in nearly all cell types in the brain, and therefore GC have a strong impact on neuronal development...
May 8, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29720388/scavenger-receptor-b-type-1-expression-molecular-regulation-and-cholesterol-transport-function
#7
Wen-Jun Shen, Shailendra Asthana, Fredric B Kraemer, Salman Azhar
Cholesterol is required for maintenance of plasma membrane fluidity and integrity and for many cellular functions. Cellular cholesterol can be obtained from lipoproteins in a selective pathway of HDL-cholesteryl ester (CE) uptake without parallel apolipoprotein uptake. Scavenger receptor B type 1 (SR-B1) is a cell surface HDL receptor that mediates HDL-CE uptake. It is most abundantly expressed in liver, where it provides cholesterol for bile acid synthesis, and in steroidogenic tissues, where it delivers cholesterol needed for storage or steroidogenesis in rodents...
May 2, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29719288/the-hypothalamic-pituitary-adrenal-axis-a-brief-history
#8
Walter L Miller
The hypothalamic-pituitary-adrenal (HPA) axis is central to homeostasis, stress responses, energy metabolism, and neuropsychiatric function. The history of this complex system involves discovery of the relevant glands (adrenal, pituitary, hypothalamus), hormones (cortisol, corticotropin, corticotropin-releasing hormone), and the receptors for these hormones. The adrenal and pituitary were identified by classical anatomists, but most of this history has taken place rather recently, and has involved complex chemistry, biochemistry, genetics, and clinical investigation...
May 2, 2018: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29705848/how-to-monitor-the-neuroimmune-biological-response-in-patients-affected-by-immune-alteration-related-systemic-diseases
#9
Paolo Lissoni, Franco Rovelli, Luigi Vigorè, Giusy Messina, Arianna Lissoni, Giorgio Porro, Giuseppe Di Fede
The clinical management of patients affected by systemic diseases, including cancer and autoimmune diseases, is generally founded on the evaluation of the only markers related to the single disease rather than the biological immuno-inflammatory response of patients, despite the fundamental role of cytokine network in the pathogenesis of cancer and autoimmunity is well known. Cancer progression has appeared to be associated with a progressive decline in the blood levels of the main antitumor cytokines, including IL-2 and IL-12, in association with an increase in those of inflammatory cytokines, including IL-6, TNF-alpha, and IL-1-beta, and immunosuppressive cytokines, namely TGF-beta and IL-10...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29685132/acth-independent-cushing-s-syndrome-with-bilateral-cortisol-secreting-adrenal-adenomas-a-case-report-and-review-of-literatures
#10
Jia Wei, Sheyu Li, Qilin Liu, Yuchun Zhu, Nianwei Wu, Ying Tang, Qianrui Li, Kaiyun Ren, Qianying Zhang, Yerong Yu, Zhenmei An, Jing Chen, Jianwei Li
BACKGROUND: Adrenocorticotropic hormone (ACTH)-independent Cushing's syndrome (CS) with bilateral cortisol-secreting adenomas has been rarely reported in the literatures. Precise recognition and management of this disorder constitute a challenge to clinicians due to the difficulty of exact location of the functional lesions. CASE PRESENTATION: We herein report a new case of a Chinese female patient with a complaint of exertional dyspnea for over 10 years. ACTH-independent CS was diagnosed based on undetectable ACTH and unsuppressed cortisol levels by dexamethasone...
April 23, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29675278/adrenocorticotropic-hormone-secreting-pheochromocytoma-underlying-glucocorticoid-induced-pheochromocytoma-crisis
#11
Gil A Geva, David J Gross, Haggi Mazeh, Karine Atlan, Iddo Z Ben-Dov, Matan Fischer
Context: Pheochromocytomas are hormone secreting tumors of the medulla of the adrenal glands found in 0.1-0.5% of patients with hypertension. The vast majority of pheochromocytomas secrete catecholamines, but they have been occasionally shown to also secrete interleukins, calcitonin, testosterone, and in rare cases adrenocorticotropic hormone. Pheochromocytoma crisis is a life threatening event in which high levels of catecholamines cause a systemic reaction leading to organ failure. Case Description: A 70-year-old man was admitted with acute myocardial ischemia following glucocorticoid administration as part of an endocrine workup for an adrenal mass...
2018: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/29661472/news-about-the-genetics-of-congenital-primary-adrenal-insufficiency
#12
Florence Roucher-Boulez, Delphine Mallet-Motak, Véronique Tardy-Guidollet, Rita Menassa, Claire Goursaud, Ingrid Plotton, Yves Morel
Primary adrenal insufficiency (PAI) is characterized by impaired production of steroid hormones due to an adrenal cortex defect. This condition incurs a risk of acute insufficiency which may be life-threatening. Today, 80% of pediatric forms of PAI have a genetic origin but 5% have no clear genetic support. Recently discovered mutations in genes relating to oxidative stress have opened the way to research on genes unrelated to the adrenal gland. Identification of causal mutations in a gene responsible for PAI allows genetic counseling, guidance of follow-up and prevention of complications...
April 13, 2018: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29660919/blood-rheology-as-a-mirror-of-endocrine-and-metabolic-homeostasis-in-health-and-disease1
#13
Jean-Frédéric Brun, Emmanuelle Varlet-Marie, Marlène Richou, Jacques Mercier, Eric Raynaud de Mauverger
 Rheological properties of plasma and blood cells are markedly influenced by the surrounding milieu: physicochemical factors, metabolism and hormones. Acid/base status, osmolality, lipid status, plasma protein pattern, oxidative stress induced by increased free radicals production, endothelium-derived factors such as nitric oxide (NO), achidonic acid derivatives modulate both red blood cell (RBC) and white cell mechanics. Therefore, regulatory axes involving liver, endothelium, kidney, pancreas, adrenal gland, endocrine heart, adipose tissue, pituitary gland, and surely other tissues play important roles in the regulation of blood fluidity...
April 7, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29659387/bilateral-adrenal-hyperplasia-due-to-adrenocorticotropic-hormone-secreting-esthesioneuroblastoma-on-fdg-pet-and-111in-pentetreotide-scintigraphy
#14
Yohji Matsusaka, Tadaki Nakahara, Isao Kurihara, Yu Iwabuchi, Masahiro Jinzaki
A 53-year-old woman with metastatic esthesioneuroblastoma was referred for FDG PET/CT imaging. FDG PET/CT showed symmetrical uptake in bilaterally enlarged adrenal glands, in addition to abnormal uptake in bone and lymph node metastases. In-pentetreotide scintigraphy was further performed and revealed the lack of adrenal uptake. The patient's serum adrenocorticotropic hormone (ACTH) level was extremely high, suggesting that hyperplastic condition in the adrenal glands due to ACTH stimulation from the metastatic esthesioneuroblastoma was responsible for increased FDG uptake...
April 13, 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29615651/low-testosterone-in-apoe-ldl-receptor-double-knockout-mice-is-associated-with-rarefied-testicular-capillaries-together-with-fewer-and-smaller-leydig-cells
#15
Kai Steinfeld, Daniela Beyer, Christian Mühlfeld, Andrea Mietens, Gerrit Eichner, Bora Altinkilic, Marian Kampschulte, Qingkui Jiang, Gabriele A Krombach, Thomas Linn, Wolfgang Weidner, Ralf Middendorff
The testis as a site for atherosclerotic changes has so far attracted little attention. We used the apolipoprotein E (ApoE)/low density lipoprotein (LDL) receptor deficient mouse model (KO) for atherosclerosis (20, 40, 60 and 87-week-old) to investigate whether Leydig cells or the capillary network are responsible for reduced serum testosterone levels previously observed in extreme ages of this model. In KO mice, overall testosterone levels were reduced whereas the adrenal gland-specific corticosterone was increased excluding a general defect of steroid hormone production...
April 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29614900/mineralocorticoid-and-glucocorticoid-receptor-mediated-control-of-genomic-responses-to-stress-in-the-brain
#16
Karen R Mifsud, Johannes M H M Reul
Successful coping with stressful events involves adaptive and cognitive processes in the brain that make the individual more resilient to similar stressors in the future. Stressful events result in the secretion of glucocorticoids (GCs) from the adrenal glands into the blood stream. Early work proved instrumental for developing the concept that these hormones act in the brain to coordinate physiological and behavioral responses to stress through binding to two different GC-binding receptors. Once activated these receptors translocate to the nucleus where they act on target genes to facilitate (or sometimes inhibit) transcription...
April 4, 2018: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/29596439/expression-of-progenitor-markers-is-associated-with-the-functionality-of-a-bioartificial-adrenal-cortex
#17
Mariya Balyura, Evgeny Gelfgat, Charlotte Steenblock, Andreas Androutsellis-Theotokis, Gerard Ruiz-Babot, Leonardo Guasti, Martin Werdermann, Barbara Ludwig, Tobias Bornstein, Andrew V Schally, Ana Brennand, Stefan R Bornstein
Encapsulation of primary bovine adrenocortical cells in alginate is an efficacious model of a bioartificial adrenal cortex. Such a bioartificial adrenal cortex can be used for the restoration of lost adrenal function in vivo as well as for in vitro modeling of the adrenal microenvironment and for investigation of cell-cell interactions in the adrenals. The aim of this work was the optimization of a bioartificial adrenal cortex, that is the generation of a highly productive, self-regenerating, long-term functioning and immune tolerant bioartificial organ...
2018: PloS One
https://www.readbyqxmd.com/read/29587720/spontaneous-adrenocorticotropic-hormone-acth-normalisation-due-to-tumour-regression-induced-by-metyrapone-in-a-patient-with-ectopic-acth-syndrome-case-report-and-literature-review
#18
Hideyuki Iwayama, Sho Hirase, Yuka Nomura, Tatsuo Ito, Hiroyuki Morita, Kazuo Otake, Akihisa Okumura, Junko Takagi
BACKGROUND: Ectopic adrenocorticotropic hormone (ACTH) syndrome (EAS) is caused by tumours releasing ACTH. Ectopic ACTH-producing tumour regression is rarely induced using steroidogenesis inhibitors. We presented a case of EAS in which ACTH production by a lung tumour was reduced by metyrapone (MTP) and also reviewed previous cases of ectopic ACTH production suppressed via steroidogenesis inhibition. CASE PRESENTATION: A 71-year-old female with general fatigue, central obesity and impaired glucose tolerance was diagnosed with Cushing's syndrome due to elevated ACTH (192...
March 27, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29580092/ventral-tegmental-area-inactivation-alters-hormonal-metabolic-and-locomotor-responses-to-inescapable-stress
#19
Samaneh Mortazaei, Hedayat Sahraei, Zahra Bahari, Gholam Hossein Meftahi, Gila Pirzad Jahromi, Boshra Hatef
CONTEXT: The involvement of unilateral and bilateral inhibition of the ventral tegmental area (VTA) in response to stress is not well understood. OBJECTIVE: In the present study, the effect of unilateral and bilateral inhibition of the VTA on hormonal, metabolic, and locomotor responses to stress was assessed. MATERIAL AND METHODS: Male rats seven days after cannulation into the VTA received electro foot-shock stress for seven consecutive days...
March 26, 2018: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29577261/clock-genes-alterations-and-endocrine-disorders
#20
REVIEW
Anna Angelousi, Eva Kassi, Narjes Nasiri-Ansari, Martin O Weickert, Harpal Randeva, Gregory Kaltsas
BACKGROUND: Various endocrine signals oscillate over the 24-hour period and so does the responsiveness of target tissues. These daily oscillations do not occur solely in response to external stimuli but are also under the control of an intrinsic circadian clock. DESIGN: We searched the PubMed database to identify studies describing the associations of clock genes with endocrine diseases. RESULTS: Various human single nucleotide polymorphisms of BMAL1 and CLOCK genes exhibited significant associations with type 2 diabetes mellitus...
March 25, 2018: European Journal of Clinical Investigation
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