keyword
MENU ▼
Read by QxMD icon Read
search

Pheochromocytoma

keyword
https://www.readbyqxmd.com/read/28810585/glutamine-promotes-hsp70-and-inhibits-%C3%AE-synuclein-accumulation-in-pheochromocytoma-pc12-cells
#1
Haiyang Wang, Chongyang Tang, Zhenfeng Jiang, Xiao Zhou, Jianhang Chen, Meng Na, Hong Shen, Zhiguo Lin
Hsp70 regulates α-Synuclein (α-Syn) degeneration in Parkinson's disease (PD), indicating that Hsp70 promotion may be able to prevent or reverse α-Syn-induced toxicity in PD. Additionally, it has been demonstrated that glutamine (Gln) enhances Hsp70 expression. In the present study, Gln-induced Hsp70 promotion in pheochromocytoma was investigated with reverse transcription- quantitative polymerase chain reaction and western blotting methods. Then it was observed whether heat shock factor (HSF)-1 was required for this phenomenon with an RNA interference strategy...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28807108/etiologies-and-management-of-cutaneous-flushing-malignant-causes
#2
REVIEW
Azeen Sadeghian, Hailey Rouhana, Brittany Oswald-Stumpf, Erin Boh
The second article in this 2-part continuing medical education series reviews the following malignant causes of flushing: mastocytosis, medullary thyroid carcinoma, pheochromocytoma, carcinoid tumors, gastroenteropancreatic neuroendocrine tumors, bronchogenic carcinoma, vasointestinal polypeptide secreting tumors, and renal cell carcinoma. The information provided will allow physicians to better distinguish patients who have worrisome presentations that require a more thorough investigation. Appropriate diagnostic workup and treatment options for these malignancies are reviewed...
September 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28803996/perioperative-hemodynamics-and-outcomes-of-patients-on-metyrosine-undergoing-resection-of-pheochromocytoma-or-paraganglioma
#3
James J Butz, Toby N Weingarten, Alexandre N Cavalcante, Irina Bancos, William F Young, Travis J McKenzie, Darrell R Schroeder, David P Martin, Juraj Sprung
INTRODUCTION: To describe outcomes of patients with metyrosine (MET) pretreatment for abdominal surgical resection of pheochromocytoma or paraganglioma (PCC/PGL) compared with patients who had phenoxybenzamine (PBZ) pretreatment. METHODS: Retrospective review of perioperative outcomes for PCC/PGL patients treated with MET and propensity-matched comparison of MET and PBZ (MET + PBZ) with PBZ alone. RESULTS: MET preparation was given in 63 cases (26 laparoscopic and 37 open, of which 55 also received PBZ)...
August 10, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28801285/-clinical-analysis-of-939-patients-with-adrenal-lesions-detected-by-abdominal-computed-tomography
#4
Cun-Xia Fan, Jia-Jun Zhang, Ying-Ying Cai, Chun-Yan Wu, Shao-Zhou Zou, Yi-Kai Xu, Yao-Ming Xue, Mei-Ping Guan
OBJECTIVE: To investigate the prevalence, etiology and clinical characteristics of adrenal lesions detected by abdominal computed tomography (CT). METHODS: This retrospective study was conducted in patients with adrenal lesions detected by abdominal CT examinations in Nanfang Hospital between July, 2014 and June, 2015. The clinical data of the patients were collected for analysis of the demographics, comorbidities, imaging characteristics, biochemical profiles, clinical diagnosis and intervention...
August 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28799639/paraganglioma-of-the-renal-pelvis-a-case-report-and-review-of-literature
#5
Cheng Yi, Lin Han, Rui Yang, Junfeng Yu
PURPOSE: Paraganglioma, a kind of pheochromocytoma originating from embryonic neural crest, is a rare neuroendocrine neoplasm commonly located at extra-adrenal areas such as head, neck, and abdomen. There are a few reports on renal paragangliomas; fewer than 5 reported cases are renal pelvic paragangliomas, including our case. METHODS: Our patient, who had not experienced headache, hypertension, or palpitation, was founded to have a fixed mass in the left renal pelvis incidentally...
August 7, 2017: Tumori
https://www.readbyqxmd.com/read/28794862/case-report-an-incidentaloma-that-catches-your-eye-adrenal-myelolipoma
#6
Rosanna D'Addosio, Joselyn Rojas, Valmore Bermúdez, Flor Ledesma, Kyle Hoedebecke
Background: Adrenal incidentaloma refers to the incidental finding of a tumor in the adrenal gland, where nonfunctional forms are the most common variant. Myelolipoma is a rare (0.08-0.4%) occurrence characterized by adipose and hematopoietic tissue. The aim of this case report is to describe the diagnosis and appropriate management of a myelolipoma in an asymptomatic patient, which was originally considered an incidental hepatic hemangioma prior to being identified as a giant adrenal adenoma. Case description: The patient was a 54 year old obese female with a recent diagnosis of diabetes type II and dyslipidemia with recent ultrasound imaging suggestive of a hepatic hemangioma...
2017: F1000Research
https://www.readbyqxmd.com/read/28791345/nova1-mediates-resistance-of-rat-pheochromocytoma-cells-to-hypoxia-induced-apoptosis-via-the-bax-bcl-2-caspase-3-pathway
#7
Hualing Li, Bei Lv, Ling Kong, Jing Xia, Ming Zhu, Lijuan Hu, Danyang Zhen, Yifan Wu, Xiaoqin Jia, Sujuan Zhu, Hengmi Cui
Neuro-oncological ventral antigen 1 (Nova1) is a well known brain-specific splicing factor. Several studies have identified Nova1 as a regulatory protein at the top of a hierarchical network. However, the function of Nova1 during hypoxia remains poorly understood. This study aimed to investigate the protective effect of Nova1 against cell hypoxia and to further explore the Bax/Bcl-2/caspase-3 pathway as a potential mechanism. During hypoxia, the survival rate of pheochromocytoma PC12 cells was gradually decreased and the apoptosis rate was gradually increased, peaking at 48 h of hypoxia...
August 3, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28776974/mechanistic-aspects-of-vesicle-opening-during-analysis-with-vesicle-impact-electrochemical-cytometry
#8
Xianchan Li, Johan Dunevall, Lin Ren, Andrew G Ewing
Vesicle impact electrochemical cytometry (VIEC) has been used to quantify the vesicular transmitter content in mammalian vesicles. In the present study, we studied the mechanism of VIEC by quantifying the catecholamine content in single vesicles isolated from pheochromocytoma (PC12) cells. These vesicles contain about one tenth of the catecholamine compared with adrenal chromaffin vesicles. The existence of a pre-spike foot for many events suggests the formation of an initial transiently stable pore at the beginning of vesicle rupture...
August 4, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28776935/shorter-telomere-length-increases-age-related-tumor-risks-in-von-hippel-lindau-disease-patients
#9
Jiang-Yi Wang, Shuang-He Peng, Xiang-Hui Ning, Teng Li, Sheng-Jie Liu, Jia-Yuan Liu, Bao-An Hong, Nie-Nie Qi, Xiang Peng, Bo-Wen Zhou, Jiu-Feng Zhang, Lin Cai, Kan Gong
Von Hippel-Lindau (VHL) disease is a rare autosomal dominant cancer syndrome caused by alterations of VHL gene. Patients are predisposed to develop pheochromocytomas and solid or cystic tumors of the central nervous system, kidney, pancreas, and retina. Remarkable phenotypic heterogeneity exits in organ involvement and tumor onset age between and within VHL families. However, no reliable markers have been found to predict the age-related tumor risks in VHL patients. A large Chinese cohort composed of 300 VHL patients and 92 healthy family controls was enrolled in our study...
August 4, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28770279/-treatment-of-an-uncommon-case-of-a-cardiogenic-shock-simultaneous-use-of-a-va-ecmo-and-an-impella-cp%C3%A2
#10
H Haake, K Grün-Himmelmann, U Kania, F Trudzinski, P M Lepper, J Vom Dahl
We report the case of a 48-year old woman where probably the intramuscular administration of glucocorticoids by an orthopedist induced a pheochromocytoma crisis. The development of a cardiogenic shock with a cardiac arrest made the use of a venoarterial extra corporeal membrane oxygenation (VA-ECMO, Cardiohelp®, Maquet, Rastatt) necessary. To treat a pulmonary edema under VA-ECMO an Impella-CP® (Abiomed, Aachen) was implanted. A coronary angiography, endomyocardial biopsies and a computer tomography were performed...
August 2, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28762170/pheochromocytoma-with-synchronous-ipsilateral-adrenal-cortical-adenoma
#11
M Earth Hasassri, T K Pandian, Aleh A Bobr, Irina Bancos, William F Young, Melanie L Richards, David R Farley, Geoffrey B Thompson, Travis J McKenzie
BACKGROUND: Pheochromocytoma with synchronous ipsilateral adrenal cortical adenoma (PSCA) may present with mixed clinical, biochemical, and radiological features characteristic to each neoplasm subtype. METHODS: All patients with a pathological diagnosis of pheochromocytoma were evaluated for an ipsilateral cortical adenoma from 1994 through 2015. Retrospectively extracted data included indications for adrenalectomy, diagnostic workup (biochemical and radiographic), operative characteristics, pathological findings, and postoperative complications...
July 31, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28760236/adrenal-imaging
#12
REVIEW
Mishal Mendiratta-Lala, Anca Avram, Adina F Turcu, N Reed Dunnick
Cross-sectional imaging can make a specific diagnosis in lesions, such as myelolipomas, cysts, and hemorrhage, and is often sufficient to distinguish benign from malignant adrenal processes. CT and MRI are useful studies to identify pheochromocytomas and cortisol-secreting or androgen-secreting tumors. In patients with primary aldosteronism, adrenal venous sampling remains the most accurate localizing study and should be performed in all patients older than 35. Radiolabeled isotope studies serve as second-line diagnostic tests for malignant adrenal tumors, primary or metastatic, as well as for pheochromocytoma...
September 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28760150/bilateral-pheochromocytoma-with-ganglioneuroma-component-associated-with-multiple-neuroendocrine-neoplasia-type-2a-a-case-report
#13
Boubacar Efared, Gabrielle Atsame-Ebang, Soufiane Tahirou, Khalid Mazaz, Nawal Hammas, Hinde El Fatemi, Laila Chbani
BACKGROUND: Composite pheochromocytoma/paragangliomas are very rare tumors composed of ordinary pheochromocytoma paragangliomas associated with neurogenic tumors. Several hereditary susceptibility disorders are known to be associated with pheochromocytoma/paragangliomas such as multiple endocrine neoplasia type 2 (2A or B). To the best of our knowledge, only four cases of composite pheochromocytoma/paragangliomas associated with multiple endocrine neoplasia type 2 have been reported. CASE PRESENTATION: A 40-year-old Arabic woman presented with headache, palpitations, paroxysmal hypertension, and weight loss, which she had had for the last 3 years...
August 1, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28759096/pheochromocytoma-induced-cardiomyopathy-mimicking-acute-coronary-syndrome
#14
Viliane Vilcant
Pheochromocytoma is a rare catecholamine-secreting tumor with a prevalence of 0.1% to 0.6% in hypertensive patients. The classic triad of symptoms is headache, palpitations, and diaphoresis, but clinical presentation varies greatly. Pheochromocytoma can also mimic acute coronary syndrome and heart failure. With surgical resection, appropriate preoperative medical therapy, and 10% malignancy rate, prognosis is usually good. In the present case, a patient presented to the emergency department with symptoms suggesting a non-ST-segment elevation myocardial infarction and was transferred to a tertiary medical center for a cardiac catheterization...
August 1, 2017: Journal of the American Osteopathic Association
https://www.readbyqxmd.com/read/28758954/chemical-constituents-from-hericium-erinaceus-promote-neuronal-survival-and-potentiate-neurite-outgrowth-via-the-trka-erk1-2-pathway
#15
Cheng-Chen Zhang, Chen-Yu Cao, Miwa Kubo, Kenichi Harada, Xi-Tao Yan, Yoshiyasu Fukuyama, Jin-Ming Gao
Hericium erinaceus is a culinary-medicinal mushroom used traditionally in Eastern Asia to improve memory. In this work, we investigated the neuroprotective and neuritogenic effects of the secondary metabolites isolated from the MeOH extract of cultured mycelium of H. erinaceus and the primary mechanisms involved. One new dihydropyridine compound (6) and one new natural product (2) together with five known compounds (1,3-5,7) were obtained and their structures were elucidated by spectroscopic analysis, including 2D NMR and HRMS...
July 30, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28757764/atypical-presentation-of-bladder-pheochromocytoma
#16
Chen-Yueh Wen, Chung-Tai Yu, Cheng-Hsing Hsieh
Bladder pheochromocytoma is a rare tumor. The typical manifestations are hematuria, hypertension, headache, sweating, and tachycardia provoked by micturition or overdistention of the bladder. We herein report a case of bladder pheochromocytoma in a 52-year-old woman who presented without micturition attacks. Her clinical course had a latent period of 10 years. A urinary bladder tumor was found incidentally on magnetic resonance imaging. Cystoscopy revealed a large submucosal tumor covered by congested urothelium with a broad base over the left lateral wall of the bladder...
January 2017: Ci Ji Yi Xue za Zhi, Tzu-chi Medical Journal
https://www.readbyqxmd.com/read/28753846/the-landscape-of-whole-genome-alterations-and-pathologic-features-in-genitourinary-malignancies-an-analysis-of-the-cancer-genome-atlas
#17
Mark W Ball, Michael A Gorin, Charles G Drake, Hans J Hammers, Mohamad E Allaf
BACKGROUND: The accumulation of somatic genetic alterations drives carcinogenesis. Little is known, however, about how the level of genetic alteration across an entire cancer genome affects tumor grade, stage or survival. OBJECTIVE: To investigate the influence of somatic mutation count (MC) and copy number variation (CNV) on pathologic and oncologic outcomes in patients with genitourinary malignancies in The Cancer Genome Atlas (TCGA). DESIGN, SETTING, AND PARTICIPANTS: TCGA data sets for adrenocortical carcinoma (ACC), bladder urothelial carcinoma (BLCA), chromophobe renal cell carcinoma (RCC; KICH), clear cell RCC (KIRC), papillary RCC (KIRP), pheochromocytoma and paraganglioma (PCPG), prostate adenocarcinoma (PRAD), and testis germ cell tumor (TGCT) were accessed via cBioportal...
February 8, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28752484/composite-pheochromocytoma-paraganglioma-ganglioneuroma-a-clinicopathologic-study-of-eight-cases-with-analysis-of-succinate-dehydrogenase
#18
Sounak Gupta, Jun Zhang, Lori A Erickson
Ganglioneuromas represent the most well-differentiated spectrum of neoplasia arising from the sympathetic nervous system, while neuroblastomas represent the most poorly differentiated counterpart, and ganglioneuroblastomas represent intermediate stages of differentiation. Small series of cases have documented the co-occurrence of ganglioneuroma with a pheochromocytoma (Pheo)/paraganglioma (PGL) component. We report the clinicopathologic features of eight such cases, diagnosed between 2003 and 2015 with a mean follow-up of 22 months (1-47), which were evaluated for syndrome associations, SDHB expression, and clinical outcome...
July 27, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28752085/review-of-pediatric-pheochromocytoma-and-paraganglioma
#19
REVIEW
Reshma Bholah, Timothy Edward Bunchman
Pheochromocytoma (PCC) and paraganglioma (PGL) are rare chromaffin cell tumors which secrete catecholamines and form part of the family of neuroendocrine tumors. Although a rare cause of secondary hypertension in pediatrics, the presentation of hypertension in these patients is characteristic, and treatment is definitive. The gold standard for diagnosis is via measurement of plasma free metanephrines, with imaging studies performed for localization, identification of metastatic lesions and for surgical resection...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28748315/interferon-alpha-treatment-for-disease-control-in-metastatic-pheochromocytoma-paraganglioma-patients
#20
Julien Hadoux, Marie Terroir, Sophie Leboulleux, Frederic Deschamps, Abir Al Ghuzlan, Ségolène Hescot, Lambros Tselikas, Isabelle Borget, Caroline Caramella, Desirée Déandréis, Diane Goere, Thierry De Baere, Martin Schlumberger, Eric Baudin
Interferon-alpha (IFN-alpha) is recommended in neuroendocrine tumors (NET). Malignant pheochromocytoma and paragangliomas (MPPGLs) constitute a rare subgroup of NET with few treatment options. IFN-alpha efficacy in patients with MPPGLs was evaluated in a single-center retrospective study. Progression-free survival (PFS) was the primary endpoint according to RECIST 1.1 and/or PERCIST 1.0, and response rate, safety, and symptomatic efficacy were secondary endpoints. Fourteen patients received peginterferon alfa-2a (90 to 180 μg/week) or interferon alfa-2b (1...
July 26, 2017: Hormones & Cancer
keyword
keyword
13757
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"