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https://www.readbyqxmd.com/read/29049038/binaural-integration-a-challenge-to-overcome-for-children-with-hearing-loss
#1
Karen A Gordon, Sharon L Cushing, Vijayalakshmi Easwar, Melissa J Polonenko, Blake C Papsin
PURPOSE OF REVIEW: Access to bilateral hearing can be provided to children with hearing loss by fitting appropriate hearing devices to each affected ear. It is not clear, however, that bilateral input is properly integrated through hearing devices to promote binaural hearing. In the present review, we examine evidence indicating that abnormal binaural hearing continues to be a challenge for children with hearing loss despite early access to bilateral input. RECENT FINDINGS: Behavioral responses and electrophysiological data in children, combined with data from developing animal models, reveal that deafness in early life disrupts binaural hearing and that present hearing devices are unable to reverse these changes and/or promote expected development...
October 18, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/29039221/how-useful-is-urinary-free-cortisol-in-the-clinic
#2
Nisa Sheriff, Ann I McCormack
Measurement of 24-h urine-free cortisol is frequently employed as a first-line screening and disease-monitoring test in Cushing's syndrome (CS). The quest for 'cortisol specificity' has seen the emergence of mass spectrometry (MS) based assays, particularly liquid chromatography/tandem mass spectrometry. In contrast to traditional immunoassays, liquid chromatography/tandem mass spectrometry 'free cortisol' measurement is less susceptible to 'interference' from cortisol precursors and metabolites. However, detection of these conjugates is important in mild CS and therefore, missed by MS if cortisol alone is measured...
October 17, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29036015/transient-pituitary-acth-dependent-cushing-syndrome-caused-by-an-immune-checkpoint-inhibitor-combination
#3
Jeremy Lupu, Cécile Pages, Pauline Laly, Julie Delyon, Marie Laloi, Antoine Petit, Nicole Basset-Seguin, Imen Oueslati, Anne-Marie Zagdanski, Jacques Young, Clara Bouche, Céleste Lebbé, Jean-François Gautier
Immune checkpoint inhibitors have improved survival in numerous advanced malignancies, but are associated with a number of immune-related adverse events, including endocrinopathies. Endogenous Cushing's syndrome (CS) is a rare disorder resulting from exposure to high levels of circulating cortisol. CS can be caused either by adrenal cortex tumors or hyperplasia or by pituitary or extra-pituitary tumors over-secreting ACTH (known as ACTH-dependent CS). We report the first case of transient ACTH-dependent CS, which appeared after combined ipilimumab and nivolumab therapy...
October 13, 2017: Melanoma Research
https://www.readbyqxmd.com/read/29034650/a-complicated-case-of-resistant-hypertension
#4
Mauro Chiarito, Andrea Scotti, Carlo A Pivato, Giuseppe Cottone, Carlo Ballarotto, Cosmo Godino, Alberto Margonato
A 47-year-old woman presented with a history of resistant arterial hypertension, associated with disabling headache. She was subjected to an enormous number of tests in order to identify an underlying cause of secondary hypertension, such as pheochromocytoma or Cushing syndrome, but all the most common causes of secondary hypertension were investigated and gradually excluded. Factitious use of amphetamine or cocaine was excluded, and therapy compliance was verified by witnessed ingestion of drug therapy, in order to rule out Munchausen syndrome...
August 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29032486/population-pharmacokinetics-of-subcutaneous-pasireotide-in-healthy-volunteers-and-cushing-s-disease-patients
#5
Jerry Nedelman, Roland Fisch, Ke Hu, Ines Paule, Jocelyn Zhou
BACKGROUND AND OBJECTIVE: Pasireotide (SOM230, Signifor(®)) is a somatostatin analog approved in a subcutaneous formulation for the treatment of Cushing's disease. This analysis characterizes the population pharmacokinetics (PopPK) of subcutaneous pasireotide jointly in healthy volunteers (HVs) and Cushing's disease patients (CDPs), evaluating the effects of age, body size, and population on pasireotide pharmacokinetics. METHODS: The analysis dataset included five phase I studies and one each from phase II and phase III...
October 14, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/29032459/predictors-of-silent-corticotroph-adenoma-recurrence-a-large-retrospective-single-center-study-and-systematic-literature-review
#6
Fabienne Langlois, Dawn Shao Ting Lim, Chris G Yedinak, Isabelle Cetas, Shirley McCartney, Justin Cetas, Aclan Dogan, Maria Fleseriu
PURPOSE: Silent corticotroph adenomas (SCAs) are clinically silent and non-secreting, but exhibit positive adrenocorticotropic hormone (ACTH) immunostaining. We characterized a single center cohort of SCA patients, compared the SCAs to silent gonadotroph adenomas (SGAs), identified predictors of recurrence, and reviewed and compared the cohort to previously published SCAs cases. METHODS: Retrospective review of SCA and SGA surgically resected patients over 10 years and 6 years, respectively...
October 14, 2017: Pituitary
https://www.readbyqxmd.com/read/29032119/a-systematic-review-of-safety-and-efficacy-of-systemic-corticosteroids-in-atopic-dermatitis
#7
Sherry Yu, Aaron M Drucker, Mark Lebwohl, Jonathan I Silverberg
BACKGROUND: Systemic corticosteroids are often used to treat atopic dermatitis (AD). However, few studies assessed the safety and efficacy of systemic corticosteroids in AD. OBJECTIVE: To systematically review the literature on efficacy and safety of systemic corticosteroid use (oral, intramuscular, intravenous) in AD. METHODS: PubMed, Embase, Medline, Scopus, Web of Science, and Cochrane Library were searched. We included systematic reviews, guidelines and treatment reviews of systemic corticosteroid use among patients of all ages with a diagnosis of AD (52 reviews and 12 studies)...
October 12, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29032080/is-the-new-treatment-for-cushing-s-disease-too-sweet
#8
Ashley Grossman
No abstract text is available yet for this article.
October 11, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29032078/efficacy-and-safety-of-once-monthly-pasireotide-in-cushing-s-disease-a-12-month-clinical-trial
#9
André Lacroix, Feng Gu, Wilson Gallardo, Rosario Pivonello, Yerong Yu, Przemysław Witek, Marco Boscaro, Roberto Salvatori, Masanobu Yamada, Libuse Tauchmanova, Michael Roughton, Shoba Ravichandran, Stephan Petersenn, Beverly M K Biller, John Newell-Price
BACKGROUND: Cushing's disease is a rare debilitating endocrine disorder for which few prospective interventional studies have been done. We report results of the first phase 3 trial assessing long-acting intramuscular pasireotide in patients with Cushing's disease. METHODS: In this phase 3 clinical trial we recruited patients aged 18 years or older with persistent, recurrent, or de-novo (non-surgical candidates) Cushing's disease who had a mean urinary free cortisol (mUFC) concentration (from three 24 h samples) of 1·5-5·0 times the upper limit of normal (ULN), a normal or greater than normal morning plasma adrenocorticotropic hormone concentration, and a pituitary source of Cushing's syndrome, from 57 sites across 19 countries...
October 11, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29031715/angptl8-promotes-the-ability-of-angptl3-to-bind-and-inhibit-lipoprotein-lipase
#10
Xun Chi, Emily C Britt, Hannah W Shows, Alexander J Hjelmaas, Shwetha K Shetty, Emily M Cushing, Wendy Li, Alex Dou, Ren Zhang, Brandon S J Davies
OBJECTIVE: Several members of the angiopoietin-like (ANGPTL) family of proteins, including ANGPTL3 and ANGPTL8, regulate lipoprotein lipase (LPL) activity. Deficiency in either ANGPTL3 or ANGPTL8 reduces plasma triglyceride levels and increases LPL activity, whereas overexpression of either protein does the opposite. Recent studies suggest that ANGPTL8 may functionally interact with ANGPTL3 to alter clearance of plasma triglycerides; however, the nature of this interaction has remained elusive...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29031329/dogs-with-macroadenomas-have-lower-body-temperature-and-heart-rate-than-dogs-with-microadenomas
#11
Ghita Benchekroun, Loic Desquilbet, Michael E Herrtage, Nick D Jeffery, Dan Rosenberg, Nicolas Granger
Pituitary macroadenomas compress the hypothalamus, which partly regulates heart rate and body temperature. The aim of this study was to investigate whether heart rate and/or body temperature could aid in clinically differentiating dogs with macroadenomas from dogs with microadenomas (i.e. small non-compressive pituitary mass). Two groups of dogs diagnosed with pituitary-dependent hyperadrenocorticism (i.e. Cushing's disease) were included. Heart rate and body temperature were collected on initial presentation before any procedure...
September 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29029106/iatrogenic-cushing-syndrome-in-a-child-with-congenital-adrenal-hyperplasia-erroneous-compounding-of-hydrocortisone
#12
Julia E Barillas, Daniel Eichner, Ryan Van Wagoner, Phyllis W Speiser
Context: Patients with 21-hydroxylase deficiency congenital adrenal hyperplasia (CAH) require lifelong treatment with glucocorticoids. In growing children the drug of choice is hydrocortisone. Commercially available hydrocortisone tablets do not conform to very low doses prescribed to infants and toddlers, and compounded hydrocortisone is often dispensed to meet therapeutic needs. However, safety, efficacy and uniformity of compounded products are not tested. We report a case of Cushing syndrome in a child with CAH who was inadvertently receiving excessive hydrocortisone in compounded form...
September 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29027863/potential-utility-of-flair-in-mri-negative-cushing-s-disease
#13
Grégoire P Chatain, Nicholas Patronas, James G Smirniotopoulos, Martin Piazza, Sarah Benzo, Abhik Ray-Chaudhury, Susmeeta Sharma, Maya Lodish, Lynnette Nieman, Constantine A Stratakis, Prashant Chittiboina
OBJECTIVE Accurate presurgical localization of microadenomas in Cushing's disease (CD) leads to improved remission rates and decreased adverse events. Volumetric gradient recalled echo (3D-GRE) MRI detects pituitary microadenomas in CD in up to 50%-80% cases as a focus of hypointensity due to delayed contrast wash-in. The authors have previously reported that postcontrast FLAIR imaging may be useful in detecting otherwise MRI-negative pituitary microadenomas as foci of hyperintensity. This reflects theoretically complementary imaging of microadenomas due to delayed contrast washout...
October 13, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29027854/long-term-outcomes-of-tissue-based-acth-antibody-assay-guided-transsphenoidal-resection-of-pituitary-adenomas-in-cushing-disease
#14
J Mark Erfe, Avital Perry, John McClaskey, Silvio E Inzucchi, Whitney Sheen James, Tore Eid, Richard A Bronen, Amit Mahajan, Anita Huttner, Florecita Santos, Dennis Spencer
OBJECTIVE Cushing disease is caused by a pituitary micro- or macroadenoma that hypersecretes adrenocorticotropic hormone (ACTH), resulting in hypercortisolemia. For decades, transsphenoidal resection (TSR) has been an efficacious treatment but with certain limitations, namely precise tumor localization and complete excision. The authors evaluated the novel use of a double-antibody sandwich assay for the real-time quantitation of ACTH in resected pituitary specimens with the goals of augmenting pathological diagnosis and ultimately improving long-term patient outcome...
October 13, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29026058/clinical-utility-of-late-night-and-post-overnight-dexamethasone-suppression-salivary-cortisone-for-the-investigation-of-cushing-s-syndrome
#15
C M Ng, T K Lam, Y C Au Yeung, C H Choi, Y P Iu, C C Shek, S C Tiu
INTRODUCTION: There is a pressing need to identify diagnostic testing for Cushing's syndrome that can be achieved with ease and at low cost. This study aimed to explore the usefulness of late-night and post-overnight 1-mg dexamethasone suppression salivary cortisone, as measured by liquid chromatography-tandem mass spectrometry, for investigation of hypercortisolism. METHODS: Salivary cortisone data of subjects were investigated according to a pre-specified protocol...
October 13, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/29025207/a-rare-case-of-multiple-pituitary-adenomas-in-an-adolescent-cushing-disease-presenting-as-a-vertebral-compression-fracture
#16
Ji-Yeon Song, Sue-Jean Mun, Soon-Ki Sung, Jae-Yeon Hwang, Seung-Kug Baik, Jee Yeon Kim, Chong-Kun Cheon, Su-Young Kim, Yoo-Mi Kim
Cushing disease in children and adolescents, especially with multiple pituitary adenomas (MPAs), is very rare. We report 17-year-old boy with MPAs. He presented with a vertebral compression fracture, weight gain, short stature, headache, and hypertension. On magnetic resonance imaging (MRI), only a left pituitary microadenoma was found. After surgery, transient clinical improvement was observed but headache and hypertension were observed again after 3 months later. Follow-up MRI showed a newly developed right pituitary microadenoma 6 months after the surgery...
September 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29022184/effects-of-ketoconazole-on-the-pharmacokinetics-of-mifepristone-a-competitive-glucocorticoid-receptor-antagonist-in-healthy-men
#17
Dat Nguyen, Sarah Mizne
INTRODUCTION: Mifepristone, a competitive glucocorticoid receptor antagonist approved for Cushing syndrome, and ketoconazole, an antifungal and steroidogenesis inhibitor, are both inhibitors of and substrates for cytochrome P450 (CYP3A4). This study evaluated the pharmacokinetic effects of concomitant ketoconazole, a strong CYP3A4 inhibitor, on mifepristone. METHODS: In an open-label, two-period, single-center study, healthy adult men received mifepristone 600 mg orally daily for 12 days (period 1) followed by mifepristone 600 mg daily plus ketoconazole 200 mg orally twice daily for 5 days (period 2)...
October 11, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/29019347/pituitary-gland-gamma-knife-for-cushing-disease-time-for-a-reappraisal
#18
Frederic Castinetti, Thierry Brue
No abstract text is available yet for this article.
October 11, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29018154/usefulness-of-desmopressin-testing-during-long-term-follow-up-to-predict-relapse-in-patients-with-cushing-s-disease
#19
Alberto Giacinto Ambrogio, Massimiliano Andrioli, Martina De Martin, Francesco Cavagnini, Francesca Pecori Giraldi
Recurrence of Cushing's disease after successful transsphenoidal surgery occurs in some 30% of patients and the response to desmopressin shortly after surgery has been proposed as a marker for disease recurrence. Aim of the present study was to evaluate the response to desmopressin over time after surgery We tested 56 patients with Cushing's disease in remission after transsphenoidal surgery with desmopressin for up to 20 years after surgery. The ACTH and cortisol response to desmopressin over time was evaluated in patients on long-term remission or undergoing relapse; an increase by at least 27 pg/ml in ACTH levels identified responders...
October 10, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28994759/a-novel-method-super-selective-adrenal-venous-sampling
#20
Kohzoh Makita, Koshiro Nishimoto, Kanako Kiriyama-Kitamoto, Shigehiro Karashima, Tsugio Seki, Masanori Yasuda, Seishi Matsui, Masao Omura, Tetsuo Nishikawa
Primary aldosteronism (PA) and subclinical Cushing's syndrome (SCS) are conditions in which the adrenal glands autonomously produce excessive amounts of aldosterone and cortisol, respectively. The conventional adrenal venous sampling (cAVS) method collects blood samples from both adrenal central veins and is useful for identifying the laterality of excess hormone production in a unilateral lesion(s), as documented in PA cases. In cAVS, plasma cortisol concentrations (PCCs) are used to normalize plasma aldosterone concentrations (PACs)...
September 15, 2017: Journal of Visualized Experiments: JoVE
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