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https://www.readbyqxmd.com/read/29232867/race-ethnicity-income-concentration-and-10-year-change-in-urban-greenness-in-the-united-states
#1
Joan A Casey, Peter James, Lara Cushing, Bill M Jesdale, Rachel Morello-Frosch
Background: Cross-sectional studies suggest urban greenness is unequally distributed by neighborhood demographics. However, the extent to which inequalities in greenness have changed over time remains unknown. Methods: We estimated 2001 and 2011 greenness using Moderate-resolution Imaging Spectroradiometer (MODIS) satellite-derived normalized difference vegetative index (NDVI) in 59,483 urban census tracts in the contiguous U.S. We fit spatial error models to estimate the association between baseline census tract demographic composition in 2000 and (1) 2001 greenness and (2) change in greenness between 2001 and 2011...
December 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29232179/adenotonsillectomy-for-obstructive-sleep-apnea-in-children-with-complex-chronic-conditions
#2
Reshma Amin, Theresa Holler, Indra Narang, Sharon L Cushing, Evan J Propst, Suhail Al-Saleh
Objective To estimate the prevalence of persistent obstructive sleep apnea postadenotonsillectomy in children with complex chronic conditions. Study Design A retrospective cohort study. Setting The Hospital for Sick Children Sleep laboratory. Subjects Children ≤18 years of age who had moderate to severe obstructive sleep apnea and had polysomnography pre- and postadenotonsillectomy. Methods Medical and polysomnographic data were reviewed. The prevalence of persistent obstructive sleep apnea postadenotonsillectomy was determined for the following groups: no complex chronic conditions, single-system complex chronic conditions, and multisystem complex chronic conditions...
December 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29226255/differential-hemispheric-and-visual-stream-contributions-to-ensemble-coding-of-crowd-emotion
#3
Hee Yeon Im, Daniel N Albohn, Troy G Steiner, Cody A Cushing, Reginald B Adams, Kestutis Kveraga
In crowds, where scrutinizing individual facial expressions is inefficient, humans can make snap judgments about the prevailing mood by reading "crowd emotion". We investigated how the brain accomplishes this feat in a set of behavioral and fMRI studies. Participants were asked to either avoid or approach one of two crowds of faces presented in the left and right visual hemifields. Perception of crowd emotion was improved when crowd stimuli contained goal-congruent cues and was highly lateralized to the right hemisphere...
2017: Nature Human Behaviour
https://www.readbyqxmd.com/read/29223281/human-studies-on-hypothalamo-pituitary-adrenal-hpa-axis
#4
REVIEW
Kamani Liyanarachchi, Richard Ross, Miguel Debono
The daily rhythm of the hypothalamo-pituitary-adrenal (HPA) axis is regulated by the central clock in the suprachiasmatic nucleus. Cortisol, a glucocorticoid, acts as a secondary messenger between the central clock and the peripheral tissues. Changes in clock time, as seen in shift workers, alters the HPA axis and results in metabolic disturbances associated with ill health. Depression, anorexia nervosa and obstructive sleep apnoea, are associated with cortisol rhythm phase shifts and increased cortisol exposure...
October 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29219752/negative-surgical-exploration-in-patients-with-cushing-s-disease-benefit-of-two-thirds-gland-resection-on-remission-rate-and-a-review-of-the-literature
#5
Steven B Carr, Bette K Kleinschmidt-DeMasters, Janice M Kerr, Katja Kiseljak-Vassiliades, Margaret E Wierman, Kevin O Lillehei
OBJECTIVE The authors report their single-institution experience with the pathological findings, rates of remission, and complications in patients with presumed Cushing's disease (CD) who underwent a two-thirds pituitary gland resection when no adenoma was identified at the time of transsphenoidal surgery (TSS). The authors also review the literature on patients with CD, negative surgical exploration, and histological findings. METHODS This study is a retrospective analysis of cases found in neurosurgery and pathology department databases between 1989 and 2011...
December 8, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29213284/circulatory-immune-cells-in-cushing-syndrome-bystanders-or-active-contributors-to-atherometabolic-injury-a-study-of-adhesion-and-activation-of-cell-surface-markers
#6
Gloria Aranda, Cristina Lopez, Rebeca Fernandez-Ruiz, Yaiza Esteban, Guillermo Garcia-Eguren, Mireia Mora, Irene Halperin, Gregori Casals, Joaquim Enseñat, Felicia A Hanzu
Glucocorticoids (GC) induce cardiometabolic risk while atherosclerosis is a chronic inflammation involving immunity. GC are immune suppressors, and the adrenocorticotrophic hormone (ACTH) has immune modulator activities. Both may act in atherothrombotic inflammation involving immune cells (IMNC). Aim. To investigate adhesion and activation surface cell markers (CDs) of peripheral IMNC in endogenous Cushing syndrome (CS) and the immune modulator role of ACTH. Material and Methods. 16 ACTH-dependent CS (ACTH-D), 10 ACTH-independent (ACTH-ID) CS, and 16 healthy controls (C) were included...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29212586/hypercortisolemia-and-depressive-like-behaviors-in-a-rhesus-macaque-macaca-mulatta-involved-in-visual-research
#7
Sean C Adams, Christine M Guyot, Kristina M Berry, Seth T Wallack, Andrew S Loar, Mathias Leblanc
A 10-y-old cranially implanted rhesus macaque (Macaca mulatta) involved in visual research was presented for dull mentation and weight loss. Physical examination revealed alopecia and poor body conditioning, and bloodwork revealed marked hypercortisolemia (23 μg/dL). Differential diagnoses for hypercortisolemia, weight loss, and alopecia included Cushing and pseudo-Cushing syndromes. To further evaluate hypercortisolemia, we compared the urine cortisol:creatinine ratio (UCCR) at baseline and after low-dose dexamethasone suppression (LDDS) testing in the presenting animal and healthy naïve and implanted working monkeys...
December 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/29211058/decreased-lymphocytes-and-increased-risk-for-infection-are-common-in-endogenous-pediatric-cushing-syndrome
#8
Christina Tatsi, Rebecca Boden, Ninet Sinaii, Meg Keil, Charalampos Lyssikatos, Elena Belyavskaya, Sergio D Rosenzweig, Constantine A Stratakis, Maya B Lodish
BackgroundHypercortisolemia results in changes of the immune system and elevated infection risk, but data on the WBC changes in pediatric Cushing syndrome (CS) are not known. We describe the changes of the WBC lineages in pediatric endogenous hypercortisolemia, their associations with the markers of disease severity, and the presence of infections.MethodsWe identified 197 children with endogenous CS. Clinical and biochemical data were recorded. Sixty-six children with similar age and gender, and normocortisolemia served as controls...
December 6, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29209490/the-importance-of-recognizing-paraneoplastic-symptoms-a-case-report-of-neuroendocrine-small-cell-carcinoma-of-the-endometrium-presenting-as-paraneoplastic-cushing-s-syndrome
#9
A Doukhopelnikoff, G Debrock, T Steelandt, Etm De Jonge
This is the second well documented case of paraneoplastic Cushing's syndrome arising from a small cell carcinoma of the endometrium described in English literature. This tumour has an aggressive biological behaviour and early detection provides the only opportunity for long-term survival. In that regard recognition of associated paraneo- plastic features might be helpful.
June 2017: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/29208661/plasma-steroid-metabolome-for-diagnosis-and-subtyping-patients-with-cushing-syndrome
#10
Graeme Eisenhofer, Jimmy Masjkur, Mirko Peitzsch, Guido Di Dalmazi, Martin Bidlingmaier, Matthias Grüber, Julia Fazel, Andrea Osswald, Felix Beuschlein, Martin Reincke
BACKGROUND: Diagnosis of Cushing syndrome requires a multistep process that includes verification of hypercortisolism followed by identification of the cause of adrenocortical hyperfunction. This study assessed whether pituitary, ectopic, and adrenal subtypes of Cushing syndrome were characterized by distinct plasma steroid profiles that might assist diagnosis. METHODS: In this retrospective cross-sectional study, mass spectrometric measurements of a panel of 15 plasma steroids were applied to 222 patients tested for Cushing syndrome...
December 5, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29203800/cortical-organization-restored-by-cochlear-implantation-in-young-children-with-single-sided-deafness
#11
Melissa Jane Polonenko, Karen Ann Gordon, Sharon Lynn Cushing, Blake Croll Papsin
Early treatment of single sided deafness in children has been recommended to protect from neurodevelopmental preference for the better hearing ear and from social and educational deficits. A fairly homogeneous group of five young children (≤3.6 years of age) with normal right sided hearing who received a cochlear implant to treat deafness in their left ears were studied. Etiology of deafness was largely cytomegalovirus (n = 4); one child had an enlarged vestibular aqueduct. Multi-channel electroencephalography of cortical evoked activity was measured repeatedly over time at: 1) acute (0...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29203576/dimethoxy-etomidate-a-non-hypnotic-etomidate-analog-that-potently-inhibits-steroidogenesis
#12
Megan McGrath, Celena Ma, Douglas Raines
Cushing's syndrome is characterized by the overproduction of adrenocortical steroids. Steroidogenesis inhibitors are mainstays of medical therapy for Cushing's syndrome; unfortunately, adverse side effects and treatment failures are common with currently available drugs. The general anesthetic induction agent etomidate is among the most potent inhibitors of adrenocortical steroidogenesis. However, its use as a treatment for Cushing's syndrome is complicated by its sedative-hypnotic activity and ability to produce myoclonus, central nervous system actions thought to be mediated by the GABAA receptor...
December 4, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29203512/glucocorticoids-reprogram-beta-cell-signaling-to-preserve-insulin-secretion
#13
Nicholas H F Fine, Craig L Doig, Yasir S Elhassan, Nicholas C Vierra, Piero Marchetti, Marco Bugliani, Rita Nano, Lorenzo Piemonti, Guy A Rutter, David A Jacobson, Gareth G Lavery, David J Hodson
Excessive glucocorticoid exposure has been shown to be deleterious for pancreatic beta cell function and insulin release. However, glucocorticoids at physiological levels are essential for many homeostatic processes, including glycemic control. Here, we show that corticosterone and cortisol and their less active precursors, 11-dehydrocorticosterone (11-DHC) and cortisone, suppress voltage-dependent Ca2+ channel function and Ca2+ fluxes in rodent as well as human beta cells. However, insulin secretion, maximal ATP/ADP responses to glucose and beta cell identity were all unaffected...
December 4, 2017: Diabetes
https://www.readbyqxmd.com/read/29202538/-cyclical-cushing-syndrome-due-to-pulmonary-neuroendocrine-tumor-a-case-report
#14
L Lin, F Q Liu, F Yan
No abstract text is available yet for this article.
December 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29202350/case-report-ectopic-cushing-s-syndrome-in-a-young-male-with-hidden-lung-carcinoid-tumor
#15
Ghanem Aljassem, Hazem Aljasem
INTRODUCTION: Ectopic Cushing syndrome is a form of Cushing's in which a tumor outside the pituitary gland produces adrenocorticotropic hormone (ACTH). Small cell carcinoma and carcinoid of the lung comprises half of its cases. The main purpose of this study is to present a case of ectopic Cushing syndrome caused by a hidden lung carcinoid and how to manage it. PRESENTATION OF CASE: Here we present a case of a 26year old young male complains of increased weight and appetite, proximal muscle weakness, easy bruising and appearing of purple striae on his abdomen, with a final diagnosis of ACTH secreting lung carcinoid...
November 28, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29201451/neuroendocrine-tumors-of-the-thymus
#16
REVIEW
Pier Luigi Filosso, Enrico Ruffini, Paolo Solidoro, Matteo Roffinella, Paolo Olivo Lausi, Paraskevas Lyberis, Alberto Oliaro, Francesco Guerrera
Primary neuroendocrine tumors of the thymus (NETTs) are rare and biologically very aggressive neoplasms, usually located in the anterior mediastinal space. They are more frequently observed in males, in their fourth/fifth decades of life. In 50% of cases, NETTs are associated with endocrinopaties [Cushing's syndrome, acromegaly or Multiple Endocrine Neoplasia-1 (MEN-1) syndrome]. NETTs very often present with invasion of the surrounding mediastinal anatomical structures. Surgery, even in advanced stages, is the mainstay of treatment: a compete resection through a median sternotomy or a combined access (sternotomy + thoracotomy) should be always attempted...
November 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29197558/clinical-utility-of-an-ultrasensitive-late-night-salivary-cortisol-assay-by-tandem-mass-spectrometry
#17
Lillian R Sturmer, Dylan Dodd, Christina S Chao, Run-Zhang Shi
BACKGROUND: Late night salivary cortisol measurement is a clinically important and convenient screening test for Cushing's syndrome. Tandem mass spectrometry (LC-MS/MS) assays have superior sensitivity and specificity compared to immunoassays. Our goal was to improve a LC-MS/MS method to measure salivary cortisol in both adult and pediatric patients and to characterize its analytical performance by method validation and clinical performance by chart review. METHODS: We improved a LC-MS/MS method originally developed for urine cortisol to measure low level salivary cortisol...
November 29, 2017: Steroids
https://www.readbyqxmd.com/read/29193156/validating-and-implementing-the-use-of-an-infusion-pump-for-the-administration-of-thawed-hematopoietic-progenitor-cells-a-single-institution-experience
#18
Ronit Reich-Slotky, Melissa M Cushing, Yen-Michael S Hsu, Michael Ancharski, Johanna M Rojas, Lara M Scrimenti, Shawna Robilio, Dianna Assalone, Therese Roselli, Danielle Guarneri, Ljiljana V Vasovic, Ruchika Goel, Tsiporah Shore, Koen van Besien
BACKGROUND: Direct thaw and administration of previously cryopreserved peripheral blood stem cell products is a commonly used practice and should be performed rapidly to reduce cellular damage caused by dimethyl sulfoxide exposure. Cells are typically thawed at the bedside and infused by gravity through a high-flow-rate central venous catheter. An existing nontunneled catheter is occasionally used instead and often results in a slower infusion rate. To ensure expedient and consistent infusions, we validated and implemented the use of an infusion pump for thawed peripheral blood stem cells...
November 29, 2017: Transfusion
https://www.readbyqxmd.com/read/29191125/the-2017-aans-presidential-address-a-world-of-innovation
#19
Frederick A Boop
The 2016 scientific meeting of the American Association of Neurological Surgeons (AANS) focused on the theme "A World of Innovation." In his presidential address, 2016 AANS President Frederick Boop compared the historical development of the specialty of neurological surgery with that of the development of global communications. In the early years, general surgeons training in the United States would spend post-residency time abroad learning from surgical masters in Europe and other places. Since Harvey Cushing's day, neurosurgeons from around the world continue to travel abroad, with many now coming to America for training at centers of excellence...
December 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29189382/john-l-cameron-a-historical-perspective
#20
Ammar A Javed, Matthew J Weiss
: John Lemuel Cameron is one of the most influential surgeons of modern American surgery and has had a profound impact on shaping its current global landscape. He served as the president of 14 surgical societies and 4 of his presidential addresses focused on the lives of surgeons who he believed had made an exceptional contribution to the field of surgery: Harvey William Cushing, William Stewart Halsted, John Shaw Billings, and John Miller Turpin Finney. Many parallels can be drawn between these surgeons and Dr...
November 16, 2017: Annals of Surgery
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