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https://www.readbyqxmd.com/read/28079576/mixed-gangliocytoma-pituitary-adenoma-insights-on-the-pathogenesis-of-a-rare-sellar-tumor
#1
M Beatriz S Lopes, Emily Sloan, Julie Polder
Gangliocytomas originating in the sellar region are rare; most are tumors composed of gangliocytic and pituitary adenomatous elements, forming the so-called mixed gangliocytoma-pituitary adenoma. The majority of mixed gangliocytoma adenomas are associated with endocrinopathies, mainly acromegaly and less often Cushing disease and hyperprolactinemia. In the present study, 10 cases of mixed gangliocytoma and somatotroph adenomas were evaluated for patterns of cellular differentiation and expression of lineage-specific transcription factors...
January 10, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28068807/annals-express-measuring-cortisol-in-serum-urine-and-saliva-are-our-assays-good-enough
#2
Nadia El-Farhan, D Aled Rees, Carol Evans
Cortisol is a steroid hormone produced in response to stress. It is essential for maintaining health and well-being; and leads to significant morbidity when deficient or present in excess. It is lipophillic and is transported bound to cortisol-binding globulin (CBG) and albumin; a small fraction (~10%) of total serum cortisol is unbound and biologically active. Serum cortisol assays measure total cortisol and their results can be misleading in patients with altered serum protein concentrations. Automated immunoassays are used to measure cortisol but lack specificity and show significant interassay differences...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28065244/advances-in-evaluation-of-cognitive-impairment-in-patients-with-cushing-s-disease
#3
Wei-Yu Mao, Hui You, Bing Xing, Hui-Juan Zhu, Feng Feng
Cushing's disease (CD) is a relatively rare disease,characterized by pathological hypercortisolism secondary to excessive adrenocorticotrophic hormone that is secreted by pituitary adrenocorticotrophic hormone adenoma or hyperplasia. In addition to the typical clinical symptoms such as moon face,buffalo hump,and central obesity,the CD patients may also experience mental disorders and cognitive dysfunction. This review mainly focuses on the cognitive state of CD patients,the mechanisms of cognitive impairment caused by high cortisol levels,and the imaging findings (especially magnetic resonance imaging) for the evaluation of cognitive functions...
December 20, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28029519/adrenocorticotropic-hormone-levels-before-treatment-predict-recurrence-of-cushing-s-disease
#4
Chun-Heng Kuo, Shyang-Rong Shih, Hung-Yuan Li, Szu-Chi Chen, Po-Ju Hung, Fen-Yu Tseng, Tien-Chun Chang
BACKGROUND/PURPOSE: Cushing's disease (CD) is the most common cause of endogenous Cushing's syndrome. Transsphenoidal surgery (TSS) is the first choice of treatment. Predicting prognosis after treatment can benefit further strategies of management, but currently there is no convenient predictor. This study aims to investigate characteristic changes after treatment and to identify potential prognostic predictors. METHODS: We retrospectively studied the records of CD patients presenting to the National Taiwan University Hospital, Taipei, Taiwan between 1992 and 2011...
October 28, 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28018289/choroidal-and-retinal-abnormalities-by-optical-coherence-tomography-in-endogenous-cushing-s-syndrome
#5
Maria Fernanda Abalem, Marcio Carlos Machado, Helen Nazareth Veloso Dos Santos, Rafael Garcia, John Helal, Pedro Carlos Carricondo, Sérgio Luis Gianotti Pimentel, Mario Luiz Ribeiro Monteiro, Cynthia X Qian, Marcello Delano Bronstein, Maria Cândida Villares Barisson Fragoso
CONTEXT: Cortisol has been suggested as a risk factor for choroidal thickening, which may lead to retinal changes. OBJECTIVE: To compare choroidal thickness measurements using optical coherence tomography (OCT) in patients with endogenous active Cushing's syndrome (CS) and to evaluate the occurrence of retinal abnormalities in the same group of patients. DESIGN: Cross-sectional study. SETTING: Outpatient clinic. PATIENTS: Eleven female patients with CS in hypercortisolism state as determined by the presence of at least two abnormal measurements from urinary cortisol 24 h, no suppression of cortisol with low dose dexamethasone suppression test, and nocturnal salivary cortisol levels and 12 healthy controls...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28007845/cabergoline-for-cushing-s-disease-a-large-retrospective-multicenter-study
#6
Amandine Ferriere, Christine Cortet, Philippe Chanson, Brigitte Delemer, Philippe Caron, Olivier Chabre, Yves Reznik, Jerome Bertherat, Vincent Rohmer, Claire Briet, Isabelle Raingeard, Frédéric Castinetti, Albert Beckers, Laurent Vroonen, Dominique Maiter, Fritzline Cephise-Velayoudom, Marie-Laure Nunes, Magalie Haissaguerre, Antoine Tabarin
OBJECTIVE: The efficacy of cabergoline in Cushing's disease (CD) is controversial. The aim of this study was to assess the efficacy and tolerability of cabergoline in a large contemporary cohort of patients with CD. DESIGN: We conducted a retrospective multicenter study from thirteen French and Belgian university hospitals. METHODS: Sixty-two patients with CD received carbergoline monotherapy or add-on therapy. Symptom score, biological markers of hypercortisolism, and adverse effects were recorded...
December 22, 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28005997/lack-of-ubiquitin-specific-protease-8-usp8-mutations-in-canine-corticotroph-pituitary-adenomas
#7
Silviu Sbiera, Marianna A Tryfonidou, Isabel Weigand, Guy C M Grinwis, Bart Broeckx, Sabine Herterich, Bruno Allolio, Timo Deutschbein, Martin Fassnacht, Björn P Meij
PURPOSE: Cushing's disease (CD), also known as pituitary-dependent hyperadrenocorticism, is caused by adrenocorticotropic hormone (ACTH)-secreting pituitary tumours. Affected humans and dogs have similar clinical manifestations, however, the incidence of the canine disease is thousand-fold higher. This makes the dog an obvious model for studying the pathogenesis of pituitary-dependent hyperadrenocorticism. Despite certain similarities identified at the molecular level, the question still remains whether the two species have a shared oncogenetic background...
2016: PloS One
https://www.readbyqxmd.com/read/28005257/safety-of-transsphenoidal-microsurgical-approach-in-patients-with-an-acth-secreting-pituitary-adenoma
#8
Carmine Antonio Donofrio, Marco Losa, Marco Gemma, Lodoviga Giudice, Lina Raffaella Barzaghi, Pietro Mortini
PURPOSE: Patients affected by Cushing's disease often have important comorbidities directly linked to hypercortisolism that might enhance the operative risk. We report the safety of transsphenoidal surgery in patients affected by Cushing's disease as compared with patients with nonfunctioning pituitary adenoma. METHODS: We have retrospectively analyzed 142 patients with Cushing's disease and 299 patients with nonfunctioning pituitary adenoma who underwent transsphenoidal surgery performed by a single experienced neurosurgeon between September 2007 and December 2014...
December 22, 2016: Endocrine
https://www.readbyqxmd.com/read/28003168/endoscopic-endonasal-surgery-for-remission-of-cushing-disease-caused-by-ectopic-intracavernous-macroadenoma-case-report-and-literature-review
#9
Maria Koutourousiou, Welby I Winstead
BACKGROUND: Complete surgical resection of an adrenocorticotropic hormone (ACTH)-secreting pituitary adenoma is the gold standard of treatment of Cushing disease. Ectopic location of these adenomas is an extremely rare condition that may compromise the diagnosis and surgical success. We present the first case of an ectopic intracavernous ACTH-secreting macroadenoma totally resected with endoscopic endonasal surgery (EES). CASE DESCRIPTION: A 36-year-old woman presented with Cushing syndrome...
December 18, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27988033/magnetic-resonance-imaging-and-histology-correlation-in-cushing-s-disease
#10
Václav Masopust, David Netuka, Vladimír Beneš, Martin Májovský, Tomáš Belšán, Ondřej Bradáč, Daniel Hořínek, Mikuláš Kosák, Václav Hána, Michal Kršek
INTRODUCTION: We continuously look for new techniques to improve the radicality of resection and to eliminate the negative effects of surgery. One of the methods that has been implemented in the perioperative management of Cushing's disease was the combination of three magnetic resonance imaging (MRI) sequences: SE, SPGR and fSPGR. MATERIAL AND METHODS: We enrolled 41 patients (11 males, 30 females) diagnosed with Cushing's disease. A 3D tumour model with a navigation console was developed using each SPGR, fSPGR and SE sequence...
November 2, 2016: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/27986975/roles-of-hippocampal-somatostatin-receptor-subtypes-in-stress-response-and-emotionality
#11
Thomas D Prévôt, François Gastambide, Cécile Viollet, Nadia Henkous, Guillaume Martel, Jacques Epelbaum, Daniel Béracochéa, Jean-Louis Guillou
Altered brain somatostatin functions recently appeared as key elements for the pathogenesis of stress-related neuropsychiatric disorders. The hippocampus exerts an inhibitory feedback on stress but the mechanisms involved remain unclear. We investigated herein the role of hippocampal somatostatin receptor subtypes in both stress response and behavioral emotionality using C57BL/6, wild type and sst2 or sst4 knockout mice. Inhibitory effects of hippocampal infusions of somatostatin agonists on stress-induced hypothalamo-pituitary-adrenal axis (HPA) activity were tested by monitoring peripheral blood and local hippocampus corticosterone levels, the latter by using microdialysis...
January 18, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27986133/prevention-and-management-of-glucocorticoid-induced-side-effects-a-comprehensive-review-gastrointestinal-and-endocrinologic-side-effects
#12
REVIEW
Avrom Caplan, Nicole Fett, Misha Rosenbach, Victoria P Werth, Robert G Micheletti
Part 2 of this 4-part continuing medical education series continues with a discussion of the prevention and management of gastrointestinal side effects associated with corticosteroid use, including peptic ulcer disease, gastrointestinal bleeding, and pancreatitis, followed by a review of corticosteroid-related endocrinologic side effects, such as diabetes, adrenal suppression, and Cushing syndrome.
January 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27980758/diagnosis-of-cushing-s-disease-in-a-patient-with-consistently-normal-urinary-free-cortisol-levels-a-case-report
#13
Kelley J Moloney, Jennifer U Mercado, William H Ludlam, Frances E Broyles
The urinary free cortisol (UFC) test is widely used for the screening of Cushing's syndrome. This case study illustrates the potential failure of the UFC test to correctly diagnose Cushing's disease (CD), indicating that the use of other complementary tests may be necessary to diagnose this disease in some cases.
December 2016: Clinical Case Reports
https://www.readbyqxmd.com/read/27978903/-the-value-and-comparison-of-plasma-adrenocorticotropic-hormone-and-urinary-free-cortisol-in-predicting-long-term-outcome-after-operation-of-cushing-s-disease
#14
M Feng, X H Liu, X J Bao, C X Yong, L Lu, K Deng, W Lian, B Xing, H J Zhu, W B Ma, Y Yan, R Z Wang
Objective: To study and the value of morning plasma adrenocorticotropic hormone (ACTH) and urinary free cortisol (24 h UFC) within 3 days after operation in patients with Cushing's disease in predicting the long-term outcome. Methods: The clinical data of 140 patients with Cushing's disease who were treated in Department of Neurosurgery of PUMCH from 2012 to 2014 were analyzed retrospectively.The univariate analysis, multivariate Logistic analysis, ROC curve analysis and other statistical methods were used to study the predicting value of morning plasma ACTH and 24 h UFC in 3 days post operation...
December 6, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27974908/cushing-s-disease-a-multidisciplinary-overview-of-the-clinical-features-diagnosis-and-treatment
#15
REVIEW
A Buliman, L G Tataranu, D L Paun, A Mirica, C Dumitrache
Cushing's disease is considered a rare condition characterized by the hypersecretion of the adrenocorticotropic hormone (ACTH) due to a pituitary adenoma that ultimately causes endogenous hypercortisolism by stimulating the adrenal glands. The clinical signs suggesting Cushing's disease, such as obesity, moon face, hirsutism, and facial plethora are already present on presentation. Endogenous hypercortisolism is associated with an increased risk of cardiovascular and metabolic manifestations, as well as respiratory disorders, psychiatric complications, osteoporosis and infections, leading to high rates of morbidity and mortality...
January 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27957799/outcome-and-prognostic-factors-in-high-risk-childhood-adrenocortical-carcinomas-a-report-from-the-european-cooperative-study-group-on-pediatric-rare-tumors-expert
#16
Giovanni Cecchetto, Alba Ganarin, Ewa Bien, Peter Vorwerk, Gianni Bisogno, Jan Godzinski, Patrizia Dall'Igna, Yves Reguerre, Dominik Schneider, Laurence Brugières, Pierre Leblond, Andrea Ferrari, Ines Brecht, Angela De Paoli, Daniel Orbach
OBJECTIVES: The aim of this retrospective international analysis was to evaluate the role of risk factors in pediatric patients with adrenocortical carcinoma (ACC) observed in European countries (2000-2013) in an attempt to identify factors associated with poor prognosis. PROCEDURES: Data were retrieved from databases of Germany, France, Poland, and Italy, which form the European Cooperative Study Group on Pediatric Rare Tumors (EXPeRT). Patients were less than 18 years old, with at least one of the following tumor-related risk factors: metastases, volume more than 200 cm(3) , Cushing syndrome, vascular or regional lymph node invasion, initial biopsy, or incomplete excision...
December 13, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/27943005/skin-manifestations-of-cushing-s-syndrome
#17
REVIEW
Constantine A Stratakis
Among the most common diagnostic manifestations of Cushing's syndrome (CS) are those involving the skin; they include violaceous striae, facial acne, hirsutism, acanthosis nigricans (AN), fungal infections, hyperpigmentation (Hp) and easy bruisability. Fortunately, most resolve within a year or two after cure of CS, although light-colored striae can persist for years depending on the age of the patients. AN, Hp, and bruisability usually resolve within months after cure in almost all ages. Facial plethora (along with acne and other facial skin changes) is a typical sign of CS that is due to increased perfusion...
September 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/27943004/carney-complex-a-familial-lentiginosis-predisposing-to-a-variety-of-tumors
#18
REVIEW
Constantine A Stratakis
Carney complex is a familial lentiginosis syndrome; these disorders cover a wide phenotypic spectrum ranging from a benign inherited predisposition to develop cutaneous spots not associated with systemic disease to associations with several syndromes. Carney complex is caused by PRKAR1A mutations and perturbations of the cyclic AMP-dependent protein kinase (PKA) signaling pathway. In addition to the cutaneous findings, the main tumors associated with Carney complex are endocrine: 1) primary pigmented nodular adrenocortical disease, a bilateral adrenal hyperplasia leading to Cushing syndrome; 2) growth-hormone secreting pituitary adenoma or pituitary somatotropic hyperplasia leading to acromegaly; 3) thyroid and gonadal tumors, including a predisposition to thyroid cancer...
September 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/27941732/glycosylated-hemoglobin-in-different-levels-of-bmi
#19
R K Das, A Nessa, M Asrin, M Z Huq, M F Husain, S Sufrin, R Zannat, T Tajkia
Body mass index is an inexpensive and easy method of screening for weight categories that may lead to health problems. Increased BMI in overweight and obese persons is directly associated with an increase in metabolic disease, such as type 2 diabetes mellitus. This Analytical cross sectional study was undertaken to assess the relation between increasing BMI and glycemic control of body through measuring glycosylated hemoglobin. This study was carried out in the Department of Physiology, Mymensingh Medical College, Mymensingh, Bangladesh from July 2011 to June 2012 on 180 equally divided male and female persons between the age of 25 to 55 years...
October 2016: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/27935805/e2f1-mediated-human-pomc-expression-in-ectopic-cushing-s-syndrome
#20
Takako Araki, Ning-Ai Liu, Yukiko Tone, Daniel Cuevas-Ramos, Roy Heltsley, Masahide Tone, Shlomo Melmed
Cushing's syndrome is caused by excessive adrenocorticotropic hormone (ACTH) secretion derived from pituitary corticotroph tumors (Cushing disease) or from non-pituitary tumors (ectopic Cushing's syndrome). Hypercortisolemic features of ectopic Cushing's syndrome are severe, and no definitive treatment for paraneoplastic ACTH excess is available. We aimed to identify subcellular therapeutic targets by elucidating transcriptional regulation of the human ACTH precursor POMC (proopiomelanocortin) and ACTH production in non-pituitary tumor cells and in cell lines derived from patients with ectopic Cushing's syndrome...
November 2016: Endocrine-related Cancer
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