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adrenal cortical

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https://www.readbyqxmd.com/read/28707538/adrenal-cortical-hyperplasia-diagnostic-workup-subtypes-imaging-features-and-mimics
#1
Michelle Agrons, Corey T Jensen, Mouhammed Amir Habra, Christine O Menias, Akram M Shaaban, Nicolaus A Wagner-Bartak, Alicia M Roman-Colon, Khaled M Elsayes
Adrenal cortical hyperplasia manifests radiologically as the nonmalignant growth, or enlargement of the adrenal glands, specifically the cortex, although the cortex cannot be definitively identified by conventional imaging. Controlled by the pituitary gland, the adrenal cortex drives critical processes, such as cortisol, mineralocorticoid, and sex hormone production. Any disruption in the multiple enzymes and hormones involved in these pathways may cause serious or life-threatening symptoms, often associated with anatomical changes of the adrenal glands...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28672049/diagnostic-and-prognostic-role-of-sf1-igf2-ki67-p53-adiponectin-and-leptin-receptors-in-human-adrenal-cortical-tumors
#2
Anna Babińska, Rafał Pęksa, Piotr Wiśniewski, Renata Świątkowska-Stodulska, Krzysztof Sworczak
BACKGROUND: The authors have examined the immunohistochemical expression of several proteins and their relationship with adrenal cortical carcinoma (ACC) diagnosis and progression. MATERIALS AND METHODS: A total of 83 patients with benign and malignant adrenal cortex tumors operated on in a single center were included in the study. Expression of the following proteins was examined: steroidogenic factor 1 (SF1), insulin growth factor 2 (IGF2), Ki67, p53, as well as adiponectin (Adipo R1, Adipo R2), and leptin (Ob-R) receptors...
July 3, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28658297/abnormal-dendritic-maturation-of-developing-cortical-neurons-exposed-to-corticotropin-releasing-hormone-crh-insights-into-effects-of-prenatal-adversity
#3
Megan M Curran, Curt A Sandman, Elysia Poggi Davis, Laura M Glynn, Tallie Z Baram
Corticotropin releasing hormone (CRH) produced by the hypothalamus initiates the hypothalamic-pituitary-adrenal (HPA) axis, which regulates the body's stress response. CRH levels typically are undetectable in human plasma, but during pregnancy the primate placenta synthesizes and releases large amounts of CRH into both maternal and fetal circulations. Notably, placental CRH synthesis increases in response to maternal stress signals. There is evidence that human fetal exposure to high concentrations of placental CRH is associated with behavioral consequences during infancy and into childhood, however the direct effects on of the peptide on the human brain are unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28606737/long-term-survival-in-a-patient-with-metastatic-ddr2-positive-adrenal-cortical-carcinoma
#4
Fadi Taza, Michal Chovanec, Noah Hahn, Costantine Albany
No abstract text is available yet for this article.
May 25, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28556829/pclo-rs2522833-mediated-gray-matter-volume-reduction-in-patients-with-drug-naive-first-episode-major-depressive-disorder
#5
R Igata, A Katsuki, S Kakeda, K Watanabe, N Igata, H Hori, Y Konishi, K Atake, Y Kawasaki, Y Korogi, R Yoshimura
Major depressive disorder (MDD) has been linked to differences in the volume of certain areas of the brain and to variants in the piccolo presynaptic cytomatrix protein (PCLO), but the relationship between PCLO and brain morphology has not been studied. A single-nucleotide polymorphism (SNP) in PCLO, rs2522833, is thought to affect protein stability and the activity of the hypothalamic-pituitary-adrenal axis. We investigated the relationship between cortical volume and this SNP in first-episode, drug-naive patients with MDD or healthy control subjects...
May 30, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28548945/soluble-antigens-from-the-neurotropic-pathogen-angiostrongylus-cantonensis-directly-induce-thymus-atrophy-in-a-mouse-model
#6
Zhen Liu, Dong-Ming Su, Zi-Long Yu, Feng Wu, Rui-Feng Liu, Shi-Qi Luo, Zhi-Yue Lv, Xin Zeng, Xi Sun, Zhong-Dao Wu
The nematode Angiostrongylus cantonensis (A.C.) is a neurotropic pathogen; stage-III larva invade the human (non-permissive host) central nervous system (CNS) to cause eosinophilic meningitis or meningoencephalitis accompanied by immunosuppression. In an A.C.-infectedmouse (another non-permissive host) model, CNS damage-associated T cell immune deficiency and severe inflammation were proposed to result from activation of the hypothalamic-pituitary-adrenal (HPA) axis. However, glucocorticoids are anti-inflammatory agents...
May 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28545287/-liddle-syndrome-complicating-with-nonfunctional-adrenal-cortical-adenoma-a-case-report
#7
P Zhang, L Q Kong, D J Huang
No abstract text is available yet for this article.
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28522964/the-differential-organization-of-f-actin-alters-the-distribution-of-organelles-in-cultured-when-compared-to-native-chromaffin-cells
#8
Yolanda Gimenez-Molina, José Villanueva, Carmen Nanclares, Inmaculada Lopez-Font, Salvador Viniegra, Maria Del Mar Francés, Luis Gandia, Amparo Gil, Luis M Gutiérrez
Cultured bovine chromaffin cells have been used extensively as a neuroendocrine model to study regulated secretion. In order to extend such experimental findings to the physiological situation, it is necessary to study mayor cellular structures affecting secretion in cultured cells with their counterparts present in the adrenomedullary tissue. F-actin concentrates in a peripheral ring in cultured cells, as witnessed by phalloidin-rodhamine labeling, while extends throughout the cytoplasm in native cells. This result is also confirmed when studying the localization of α-fodrin, a F-actin-associated protein...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28522963/the-f-actin-binding-protein-cortactin-regulates-the-dynamics-of-the-exocytotic-fusion-pore-through-its-sh3-domain
#9
Arlek M González-Jamett, María J Guerra, María J Olivares, Valentina Haro-Acuña, Ximena Baéz-Matus, Jacqueline Vásquez-Navarrete, Fanny Momboisse, Narcisa Martinez-Quiles, Ana M Cárdenas
Upon cell stimulation, the network of cortical actin filaments is rearranged to facilitate the neurosecretory process. This actin rearrangement includes both disruption of the preexisting actin network and de novo actin polymerization. However, the mechanism by which a Ca(2+) signal elicits the formation of new actin filaments remains uncertain. Cortactin, an actin-binding protein that promotes actin polymerization in synergy with the nucleation promoting factor N-WASP, could play a key role in this mechanism...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28522880/immunolocalization-of-glutathione-peroxidase-gpx1-in-the-rat-adrenal-cortex-correlation-between-steroidogenesis-and-lipid-peroxidation
#10
Masanori Murakoshi, Robert Yoshiyuki Osamura
In order to confirm the relationship between glutathione-peroxidase (GPx1) and biological significance on steroidogenesis, we have studied the immunocytochemical localization of GPx1 in the rat adrenal cortical cells. GPx1 was observed not only in cytoplasm (cytosol GPx1) but in mitochondria (mitochondrial GPx1). The staining intensity was altered by the functional state of the adrenal cortical cells. Furthermore, cytosol- and mitochondrial-GPx1 was modified by lipoperoxidative damage in the adrenal cortical cells...
April 27, 2017: Acta Histochemica et Cytochemica
https://www.readbyqxmd.com/read/28521609/adrenal-obliteration-by-balloon-occluded-retrograde-venous-ethanol-injection-in-a-swine-model
#11
Akitoshi Inoue, Shinichi Ohta, Norihisa Nitta, Shizuka Tsuboi, Akinaga Sonoda, Yuki Tomozawa, Shobu Watanabe, Kenichi Mukaisho, Kiyoshi Murata
PURPOSE: To evaluate the effects of adrenal obliteration by balloon-occluded retrograde venous ethanol injection. MATERIAL AND METHODS: We inserted a micro-balloon catheter into the left adrenal vein of six pigs and retrogradely injected absolute ethanol (0.06 ml/kg) under balloon occlusion. Two pigs were sacrificed on day 3, 7, and 14 after the procedure, respectively. We evaluated adrenal cortical and medullary hormones of the left renal vein, venograms, magnetic resonance imaging scans obtained before and after the procedure, autopsy and microscopic findings, and the weight of the bilateral adrenal glands...
May 19, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28477311/update-on-adrenal-tumours-in-2017-world-health-organization-who-of-endocrine-tumours
#12
REVIEW
Alfred King-Yin Lam
The fourth edition of the World Health Organization (WHO) classification of endocrine tumours contains substantial new findings for the adrenal tumours. The tumours are presented in two chapters labelled as "Tumours of the adrenal cortex" and "Tumours of the adrenal medulla and extra-adrenal paraganglia." Tumours of the adrenal cortex are classified as cortical carcinoma, cortical adenoma, sex cord stromal tumours, adenomatoid tumour, mesenchymal and stromal tumours (myelolipoma and schwannoma), haematological tumours, and secondary tumours...
May 6, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28455835/surgical-approaches-in-hereditary-endocrine-tumors
#13
REVIEW
Maurizio Iacobone, Marilisa Citton, Giovanni Viel, Donatella Schiavone, Francesca Torresan
Endocrine tumors of thyroid, adrenal and parathyroid glands may be due to germline and inheritable mutations in 5-30% of patients. Medullary Thyroid Carcinoma, Pheochromocytoma, Paraganglioma, and Familial Primary Hyperparathyroidism are the most frequent entity. Hereditary endocrine tumors usually have a suggestive familial history; they occur earlier than sporadic variants, are multifocal, and have increased recurrence rates. They may be present as isolated variant or associated to other neoplasms in a syndromic setting...
June 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28450850/cholecystokinin-from-local-gut-hormone-to-ubiquitous-messenger
#14
REVIEW
Jens F Rehfeld
Cholecystokinin (CCK) was discovered in 1928 in jejunal extracts as a gallbladder contraction factor. It was later shown to be member of a peptide family, which are all ligands for the CCK1 and CCK2 receptors. CCK peptides are known to be synthetized in small intestinal endocrine I-cells and cerebral neurons. But in addition, CCK is expressed in several endocrine glands (pituitary cells, thyroid C-cells, pancreatic islets, the adrenals, and the testes); in peripheral nerves; in cortical and medullary kidney cells; in cardial myocytes; and in cells of the immune system...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28444833/chronic-stress-induced-mechanical-hyperalgesia-is-controlled-by-capsaicin-sensitive-neurones-in-the-mouse
#15
B Scheich, P Vincze, É Szőke, É Borbély, Á Hunyady, J Szolcsányi, Á Dénes, Zs Környei, B Gaszner, Zs Helyes
BACKGROUND: Clinical studies demonstrated peripheral nociceptor deficit in stress-related chronic pain states, such as fibromyalgia. The interactions of stress and nociceptive systems have special relevance in chronic pain, but the underlying mechanisms including the role of specific nociceptor populations remain unknown. We investigated the role of capsaicin-sensitive neurones in chronic stress-related nociceptive changes. METHOD: Capsaicin-sensitive neurones were desensitized by the capsaicin analogue resiniferatoxin (RTX) in CD1 mice...
April 25, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28438110/temporal-progression-of-lesions-in-guinea-pigs-infected-with-lassa-virus
#16
T M Bell, C I Shaia, J J Bearss, M E Mattix, K A Koistinen, S P Honnold, X Zeng, C D Blancett, G C Donnelly, J D Shamblin, E R Wilkinson, K A Cashman
Lassa virus (LASV) infection causes an acute, multisystemic viral hemorrhagic fever that annually infects an estimated 100 000 to 300 000 persons in West Africa. This pathogenesis study evaluated the temporal progression of disease in guinea pigs following aerosol and subcutaneous inoculation of the Josiah strain of LASV as well as the usefulness of Strain 13 guinea pigs as an animal model for Lassa fever. After experimental infection, guinea pigs ( Cavia porcellus; n = 67) were serially sampled to evaluate the temporal progression of infection, gross and histologic lesions, and serum chemistry and hematologic changes...
May 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28388725/histopathological-classification-of-cross-sectional-image-negative-hyperaldosteronism
#17
Yuto Yamazaki, Yasuhiro Nakamura, Kei Omata, Kazue Ise, Yuta Tezuka, Yoshikiyo Ono, Ryo Morimoto, Yukinaga Nozawa, Celso E Gomez-Sanchez, Scott A Tomlins, William E Rainey, Sadayoshi Ito, Fumitoshi Satoh, Hironobu Sasano
Context: Approximately half of patients with primary aldosteronism (PA) have clinically evident disease according to clinical (hypertension) and/or laboratory (aldosterone and renin levels) findings but do not have nodules detectable in routine cross-sectional imaging. However, the detailed histopathologic, steroidogenic, and pathobiological features of cross-sectional image-negative PA are controversial. Objective: To examine histopathology, steroidogenic enzyme expression, and aldosterone-driver gene somatic mutation status in cross-sectional image-negative hyperaldosteronism...
April 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28383228/classic-congenital-adrenal-hyperplasia
#18
Ingrid Nermoen, Eystein S Husebye, Anne Grethe Myhre, Kristian Løvås
Congenital adrenal hyperplasia is attributed to inherited enzyme defects in the adrenal cortex. The classical form results in reduced production of cortisol and aldosterone, accompanied by an increase in production of adrenal cortical androgens. This causes virilisation in girls, adrenocortical failure and early puberty in both sexes. This article describes the genetics, clinical picture, diagnostics and treatment.
April 2017: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
https://www.readbyqxmd.com/read/28382483/images-in-endocrine-pathology-unique-composite-adrenal-adenomatoid-tumor-ganglioneuroma-myelolipoma-and-cortical-nodular-hyperplasia
#19
Eleonora Duregon, Marco Volante, Stefano Guzzetti, Ida Rapa, Simona Vatrano, Mauro Papotti
No abstract text is available yet for this article.
April 5, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28374498/utility-of-gata3-in-the-differential-diagnosis-of-pheochromocytoma
#20
Carmen M Perrino, Alex Ho, Christopher P Dall, Debra L Zynger
AIMS: GATA3 is a relatively new immunohistochemical marker which shows consistent nuclear expression in a variety of tumors, including breast and urothelial carcinoma. The staining pattern of GATA3 in adrenal lesions is not well established. We aim to describe the expression of GATA3 in adrenal tumors and determine if there is differential staining between pheochromocytoma and adrenal cortical carcinoma. METHODS AND RESULTS: A retrospective search was performed to identify 74 adrenal lesions which were immunohistochemically tested for GATA3 expression...
April 4, 2017: Histopathology
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