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adrenal cortical

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https://www.readbyqxmd.com/read/27894345/ultrasonographic-features-of-adrenal-gland-lesions-in-dogs-can-aid-in-diagnosis
#1
Elena Pagani, Massimiliano Tursi, Chiara Lorenzi, Alberto Tarducci, Barbara Bruno, Enrico Corrado Borgogno Mondino, Renato Zanatta
BACKGROUND: Ultrasonography to visualize adrenal gland lesions and evaluate incidentally discovered adrenal masses in dogs has become more reliable with advances in imaging techniques. However, correlations between sonographic and histopathological changes have been elusive. The goal of our study was to investigate which ultrasound features of adrenal gland abnormalities could aid in discriminating between benign and malignant lesions. To this end, we compared diagnosis based on ultrasound appearance and histological findings and evaluated ultrasound criteria for predicting malignancy...
November 28, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27865917/the-co-expression-of-glun2b-subunits-of-the-nmda-receptors-and-glucocorticoid-receptors-after-chronic-restraint-stress-in-low-and-high-anxiety-rats
#2
Małgorzata Lehner, Aleksandra Wisłowska-Stanek, Marek Gryz, Alicja Sobolewska, Danuta Turzyńska, Natalia Chmielewska, Paweł Krząścik, Anna Skórzewska, Adam Płaźnik
The aim of this study was to assess the mechanisms underlying behavioural differences between high- (HR) and low- (LR) anxiety rats, selected according to their behaviour in the contextual fear test (i.e., the duration of the freezing response was used as a discriminating variable), after a chronic restraint procedure (21days, 3h daily). We analysed the expression of the GluN2B subunits of the NMDA and glucocorticoid receptors (GRs) in selected brain structures (immunofluorescence). Following chronic restraint stress in the HR rats, we observed a decrease in the expression of the GRs and GluN2B subunits of the NMDA receptor in the prefrontal cortical areas and the hippocampus compared to the HR-control and the LR-restraint groups...
November 16, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27857836/refractory-hypoglycemia-in-a-patient-with-functional-adrenal-cortical-carcinoma
#3
Katia Regina Marchetti, Maria Adelaide Albergaria Pereira, Arnaldo Lichtenstein, Edison Ferreira Paiva
: Adrenacarcinomas are rare, and hypoglycemic syndrome resulting from the secretion of insulin-like growth factor II (IGF-II) by these tumors have been described infrequently. This study describes the case of a young woman with severe persistent hypoglycemia and a large adrenal tumor and discusses the physiopathological mechanisms involved in hypoglycemia. The case is described as a 21-year-old woman who presented with 8 months of general symptoms and, in the preceding 3 months, with episodes of mental confusion and visual blurring secondary to hypoglycemia...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27857512/respiratory-manifestations-in-endocrine-diseases
#4
REVIEW
Codruţa Lencu, Teodora Alexescu, Mirela Petrulea, Monica Lencu
The control mechanisms of respiration as a vital function are complex: voluntary - cortical, and involuntary - metabolic, neural, emotional and endocrine. Hormones and hypothalamic neuropeptides (that act as neurotrasmitters and neuromodulators in the central nervous system) play a role in the regulation of respiration and in bronchopulmonary morphology. This article presents respiratory manifestations in adult endocrine diseases that evolve with hormone deficit or hypersecretion. In hyperthyroidism, patients develop ventilation disorders, obstructive and central sleep apnea, and pleural collection...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27823369/prevalence-of-adrenal-gland-masses-as-incidental-findings-during-abdominal-computed-tomography-in-dogs-270-cases-2013-2014
#5
Jared I Baum, Sarah E Boston, J Brad Case
OBJECTIVE To determine the prevalence and clinical characteristics of incidental adrenal gland masses identified in dogs undergoing abdominal CT. DESIGN Retrospective case series. ANIMALS 270 client-owned dogs. PROCEDURES Medical records of dogs that underwent abdominal CT from June 2013 through June 2014 were reviewed. Patients were excluded if they had undergone CT because of a history or clinical signs of an adrenal gland mass or disease. Information collected included history, signalment, initial complaint, serum alkaline phosphatase activity, urine specific gravity, and whether abdominal ultrasonography was performed...
November 15, 2016: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/27797672/low-dheas-a-sensitive-and-specific-test-for-detection-of-subclinical-hypercortisolism-in-adrenal-incidentalomas
#6
Michael Conall Dennedy, Anand K Annamalai, Olivia Prankerd Smith, Natalie Freeman, Kuhan Vengopal, Johann Graggaber, Olympia Koulouri, Andrew S Powlson, Ashley Shaw, David J Halsall, Mark Gurnell
CONTEXT: Subclinical hypercortisolism (SH) occurs in 5-30% of adrenal incidentalomas (AIs). Common screening tests for adrenocorticotropin (ACTH)-independent hypercortisolism have significant false positive rates, mandating further time and resource intensive investigations. OBJECTIVE: To determine whether low basal dehydroepiandrosterone sulphate (DHEAS) is a sensitive and specific screening test for SH in AI. SETTING AND PATIENTS: 185 patients with AI were screened for adrenal medullary (plasma metanephrines) and cortical [1 mg overnight dexamethasone suppression test (ONDST), 24h urinary free cortisol (UFC), serum DHEAS, plasma renin and aldosterone] hyperfunction...
October 31, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27716880/peritoneal-metastases-from-adrenal-cortical-carcinoma-treated-by-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy
#7
Paul H Sugarbaker
PURPOSE: Adrenal cortical carcinoma is a rare cancer that often presents in an advanced stage. Not only systemic metastases but also local recurrence and peritoneal metastases prevent long-term survival in these patients. METHODS: A profoundly symptomatic patient with extensive peritoneal metastases and local recurrence was treated using cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) with melphalan as the chemotherapy agent. RESULTS: Relative sparing of the small bowel within the abdomen and pelvis allowed a visible complete resection of all cancer...
September 27, 2016: Tumori
https://www.readbyqxmd.com/read/27708447/mammary-development-hyperestrogenemia-and-hypocortisolemia-in-a-male-cat-with-an-adrenal-cortical-carcinoma
#8
Amy C Nadolski, Jessica E Markovich, Samuel H Jennings, Orla M Mahony
A 14-year-old neutered male domestic shorthaired cat was diagnosed with an adrenal cortical carcinoma causing hyperestrogenemia that resulted in mammary hyperplasia and sexual behavior. A right adrenalectomy and mammary gland biopsy were performed. Adrenal cortical neoplasia should be ruled out in any neutered male cat with mammary development and/or exhibiting sexual behavior.
October 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/27705928/unraveling-the-expression-of-the-oncogene-yap1-a-wnt-beta-catenin-target-in-adrenocortical-tumors-and-its-association-with-poor-outcome-in-pediatric-patients
#9
Rafael H Abduch, Ana Carolina Bueno, Leticia F Leal, Marcelo M Cavalcanti, Débora C Gomes, Silvia R Brandalise, Maria J Masterallo, José A Yunes, Carlos E Martinelli, Luiz G Tone, Silvio Tucci, Carlos A F Molina, Fernando S Ramalho, Ayrton C Moreira, Izilda A Cardinalli, Carlos A Scrideli, Leandra N Z Ramalho, Margaret de Castro, Sonir R Antonini
BACKGROUND: Overexpression of the oncogene yes-associated-protein-1 (YAP1) is associated with increased cell proliferation in human cancers. YAP1 is a potential target of the Wnt/beta-catenin pathway, which plays an important role in adrenocortical tumors (ACT). The role of YAP1 in adrenocortical tumorigenesis has not been assessed. AIMS: To evaluate YAP1 expression in normal adrenals and pediatric ACT and its association with disease outcome. To investigate the interaction between YAP1 and the Wnt/beta-catenin pathway in adrenocortical cells...
October 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27694217/carboxy-terminal-deletion-of-the-hdl-receptor-reduces-receptor-levels-in-liver-and-steroidogenic-tissues-induces-hypercholesterolemia-and-causes-fatal-heart-disease
#10
Rinku Pal, Qingen Ke, German A Pihan, Ayce Yesilaltay, Marsha L Penman, Li Wang, Chandramohan Chitraju, Peter M Kang, Monty Krieger, Olivier Kocher
The HDL receptor SR-BI mediates the transfer of cholesteryl esters from HDL to cells and controls HDL abundance and structure. Depending on the genetic background, loss of SR-BI causes hypercholesterolemia, anemia, reticulocytosis, splenomegaly, thrombocytopenia, female infertility, and fatal coronary heart disease (CHD). The carboxy terminus of SR-BI ((505)QEAKL(509)) must bind to the cytoplasmic adaptor PDZK1 for normal hepatic-but not steroidogenic cell-expression of SR-BI protein. To determine whether SR-BI's carboxy terminus is also required for normal protein levels in steroidogenic cells, we introduced into SR-BI's gene a (507)Ala/STOP mutation that produces a truncated receptor (SR-BIΔCT)...
December 1, 2016: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/27688079/sarcomatoid-adrenal-carcinoma-case-report-with-contribution-to-pathogenesis
#11
Wolfgang Saeger, Werner Mohren, Matthias Behrend, Peter Iglauer, Waldemar Wilczak
A tumor in the adrenal region with two metastases in the liver was classified as poorly differentiated sarcoma on the base of extensive immunostainings (expression of vimentin, desmin, myogenin, and CD31, no expression of inhibin, melan A). Four years later in a second examination with molecular methods for a study of adrenal sarcomas, this diagnosis must be revised due to the lack of MDM-2 gene amplification and FKHR translocation which exclude sarcoma. Further immunostainings of many other parts of the tumor showed in one area more mature tumor tissue expressing synaptophysin, SF-1, and melan A...
September 29, 2016: Endocrine Pathology
https://www.readbyqxmd.com/read/27637345/adrenal-cortical-and-chromaffin-stem-cells-is-there-a-common-progeny-related-to-stress-adaptation
#12
Charlotte Steenblock, Maria F Rubin de Celis, Andreas Androutsellis-Theotokis, Mariko Sue, Luis F Delgadillo Silva, Graeme Eisenhofer, Cynthia L Andoniadou, Stefan R Bornstein
The adrenal gland is a highly plastic organ with the capacity to adapt the body homeostasis to different physiological needs. The existence of stem-like cells in the adrenal cortex has been revealed in many studies. Recently, we identified and characterized in mice a pool of glia-like multipotent Nestin-expressing progenitor cells, which contributes to the plasticity of the adrenal medulla. In addition, we found that these Nestin progenitors are actively involved in the stress response by giving rise to chromaffin cells...
September 13, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27622479/li-fraumeni-syndrome
#13
Carlos Andrés Ossa, Gustavo Molina, Alicia María Cock-Rada
The Li-Fraumeni syndrome is characterized clinically by the appearance of tumors in multiple organs generally at an early age. This hereditary condition is caused by germinal mutations in the TP53 gene, which codifies for the tumoural suppressor gene p53. We present the case of a patient aged 31 with clinical and molecular diagnosis of Li-Fraumeni syndrome who presented two synchronous tumors: a leiomyosarcoma on the forearm and a phyllodes breast tumour. She had a family history of cancer, including a son diagnosed with a cortical adrenal carcinoma when he was three years old, who died at five from the disease...
June 3, 2016: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/27619404/regulation-of-zonation-and-homeostasis-in-the-adrenal-cortex
#14
Emanuele Pignatti, Sining Leng, Diana L Carlone, David T Breault
The adult adrenal cortex is organized into concentric zones, each specialized to produce distinct steroid hormones. Cellular composition of the cortex is highly dynamic and subject to diverse signaling controls. Cortical homeostasis and regeneration rely on centripetal migration of steroidogenic cells from the outer to the inner cortex, which is accompanied by direct conversion of zona glomerulosa (zG) into zona fasciculata (zF) cells. Given the important impact of tissue structure and growth on steroidogenic function, it is essential to understand the mechanisms governing adrenal zonation and homeostasis...
September 9, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27617148/li-fraumeni-syndrome
#15
REVIEW
Hernán Correa
Li-Fraumeni syndrome (LFS) is a cancer predisposition syndrome caused by a germline mutation of the TP53 gene on chromosome 17p13.1. It has an autosomal dominant pattern of inheritance with high penetrance. These patients have a very high lifetime cumulative risk of developing multiple malignancies and have a strong family history of early-onset malignancies. The protein p53, encoded by TP53, has a complex set of genome-preserving functions initiated during episodes of cellular stress and DNA damage. In LFS, TP53 gene mutations cause the loss of function of p53, leading to downstream events permissive for development of various malignancies throughout life...
June 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27598456/no-association-between-hair-cortisol-or-cortisone-and-brain-morphology-in-children
#16
Ruoqing Chen, Ryan L Muetzel, Hanan El Marroun, Gerard Noppe, Elisabeth F C van Rossum, Vincent W Jaddoe, Frank C Verhulst, Tonya White, Fang Fang, Henning Tiemeier
Little is known about the relationship between the long-term hypothalamic-pituitary-adrenal (HPA) axis functioning and brain structure in children. Glucocorticoid in hair has emerged as an important biomarker of HPA activity. In this study, we investigated the associations of hair cortisol and cortisone concentrations with brain morphology in young children. We included 219 children aged 6-10 years from the Generation R Study in Rotterdam, the Netherlands. We examined cortisol and cortisone concentrations by hair analysis using liquid chromatography-tandem mass spectrometry, and assessed brain morphometric measures with structural magnetic resonance imaging...
August 24, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27592231/effect-of-subchronic-corticosterone-administration-on-%C3%AE-2-adrenoceptor-functionality-in-rat-brain-an-in-vivo-and-in-vitro-study
#17
Igor Horrillo, Jorge E Ortega, Rebeca Diez-Alarcia, Leyre Urigüen, J Javier Meana
RATIONALE: Noradrenergic system plays a critical role in the hypothalamic-pituitary-adrenal (HPA) axis regulation and the stress response. A dysregulated HPA axis may be indicative of an increased biological vulnerability for depression. In addition, a variety of studies have focused on specific alterations of α2-adrenoceptors as a mechanism involved in the pathogenesis of mood disorders and antidepressant response. OBJECTIVES: This study aimed to evaluate the effect of subchronic corticosterone administration on rat brain α2-adrenoceptor functionality by in vitro [(35)S]GTPγS binding stimulation assays and in vivo dual-probe microdialysis determination of extracellular noradrenaline concentrations...
September 4, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27572829/concomitant-existence-of-pheochromocytoma-in-a-patient-with-multiple-endocrine-neoplasia-type-1
#18
Ryo Okada, Tatsuo Shimura, Shigeyuki Tsukida, Jin Ando, Yasuhide Kofunato, Tomoyuki Momma, Rei Yashima, Yoshihisa Koyama, Shinichi Suzuki, Seiichi Takenoshita
BACKGROUND: Multiple endocrine neoplasia type 1 (MEN1) is an autosomal-dominant inherited disorder that is classically characterized by the presence of neoplastic lesions of the parathyroid glands, the anterior pituitary gland, and the pancreas. However, MEN1 with concomitant pheochromocytoma is extremely rare. CASE REPORT: We report a case of MEN1 concomitant with pheochromocytoma. A 44-year-old Japanese man, who had undergone total parathyroidectomy due to primary hyperparathyroidism at the age of 18, was referred to our hospital with a complaint of a large abdominal tumor...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27569586/endocannabinoids-in-brain-plasticity-cortical-maturation-hpa-axis-function-and-behavior
#19
Diana Dow-Edwards, Lindsay Silva
Marijuana use during adolescence has reached virtually every strata of society. The general population has the perception that marijuana use is safe for mature people and therefore is also safe for developing adolescents. However, both clinical and preclinical research shows that marijuana use, particularly prior to age 16, could have long-term effects on cognition, anxiety and stress-related behaviors, mood disorders and substance abuse. These effects derive from the role of the endocannabinoid system, the endogenous cannabinoid system, in the development of cortex, amygdala, hippocampus and hypothalamus during adolescence...
August 26, 2016: Brain Research
https://www.readbyqxmd.com/read/27562041/-etiology-analysis-of-522-hospitalized-cases-with-cushing-syndrome
#20
L L Li, J T Dou, G Q Yang, W J Gu, Z H Lü, Y M Mu
OBJECTIVE: To summarize the characteristics of the etiology distribution of Cushing syndrome (CS) patients in Chinese PLA general hospital during the past 20 years. METHODS: All data of CS patients admitted to Chinese PLA General Hospital between 1995 and 2014 were collected. The sex ratio of patients, visiting age, final diagnosis were retrospectively analyzed. RESULTS: From January 1995 to December 2014, 522 patients with CS were admitted, of which, 134 (25...
August 16, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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