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Serum chromogranin A

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https://www.readbyqxmd.com/read/28225994/a-rare-case-of-ectopic-acth-syndrome-originating-from-malignant-renal-paraganglioma
#1
Esra Tutal, Demet Yılmazer, Taner Demirci, Evrim Cakır, Salih Sinan Gültekin, Bahadır Celep, Oya Topaloğlu, Erman Çakal
Ectopic adrenocorticotropic hormone (ACTH) syndrome is characterized by hypercortisolism due to the hypersecretion of a non-pituitary ACTH-secreting tumor leading to Cushing's syndrome. Only a few cases have been reported previously as causing ectopic ACTH related to paraganglioma. Herein, we present a case of Cushing's syndrome, in who was proved to be attributable to an ACTH-secreting renal malignant paraganglioma. A 40-year-old woman presented with a five-month history of newly diagnosed hypertension and diabetes, weakness, hyperpigmentation, oligomenorrhea, hirsutism, and acneiform lesions...
February 13, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222414/urinary-steroid-metabolites-in-a-case-of-florid-ectopic-cushing-s-syndrome-and-clinical-correlations
#2
Angelos Kyriacou, Karolina G Stepien, Basil Issa
A 51-year old woman was admitted with multiple cerebral, pulmonary and intra-abdominal abscesses. The combination of apparent immunosuppression, obesity, diabetes mellitus, hypertension, hypokalaemia, osteoporotic fractures and bilateral shoulder avascular necrosis led to a clinical diagnosis of Cushing's syndrome (CS). This was biochemically confirmed as follows: midnight serum cortisol 4275 nmol/L (60-250), non-suppressed overnight dexamethasone suppression test, raised salivary cortisol 716 nmol/L (5-46) and ACTH 639 ng/L (0-46)...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28131880/homocysteine-measurement-in-pig-saliva-assay-validation-and-changes-after-acute-stress-and-experimental-inflammation-models-a-pilot-study
#3
F Tecles, D Escribano, S Martínez-Miró, J J Cerón
High homocysteine (Hcy) concentration in serum has been associated to stress and inflammation in humans, but this association has not been studied in saliva in any animal species. The purpose of this research was to study salivary Hcy levels in pigs under stressful and inflammatory conditions. A commercially available enzyme-linked immunosorbent assay specific for Hcy determination in pigs was adapted and validated in saliva, yielding reproducible and accurate results. Hcy was measured in paired serum-saliva samples and no correlation was observed between serum and salivary Hcy...
January 17, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28107595/chromogranin-a-and-neurone-specific-enolase-variations-during-the-first-3-months-of-abiraterone-therapy-predict-outcomes-in-patients-with-metastatic-castration-resistant-prostate-cancer
#4
Liancheng Fan, Yanqing Wang, Chenfei Chi, Jiahua Pan, Shangguan Xun, Zhixiang Xin, Jianian Hu, Lixin Zhou, Baijun Dong, Wei Xue
OBJECTIVE: To determine the prognostic utility of serum chromogranin A (CgA) and neurone-specific enolase (NSE) variations during the first 3 months of abiraterone acetate (AA) treatment in patients with metastatic castration-resistant prostate cancer (mCRPC). PATIENTS AND METHODS: The serum levels of CgA, NSE were measured at baseline and after 3 months of AA treatment in 40 patients with mCRPC. Outcome measures were prostate-specific antigen progression-free survival (PSA-PFS), radiographic PFS (rPFS), and overall survival (OS)...
January 20, 2017: BJU International
https://www.readbyqxmd.com/read/28049540/catestatin-and-vasostatin-concentrations-in-healthy-dogs
#5
Thanikul Srithunyarat, Ragnvi Hagman, Odd V Höglund, Ulf Olsson, Mats Stridsberg, Supranee Jitpean, Anne-Sofie Lagerstedt, Ann Pettersson
BACKGROUND: The neuroendocrine glycoprotein chromogranin A is a useful biomarker in humans for neuroendocrine tumors and stress. Chromogranin A can be measured in both blood and saliva. The objective of this study was to investigate concentrations of and correlation between the chromogranin A epitopes catestatin and vasostatin in healthy dogs accustomed to the sample collection procedures. Blood and saliva samples were collected from 10 research Beagle dogs twice daily for 5 consecutive days, and from 33 privately-owned blood donor dogs in association with 50 different blood donation occasions...
January 3, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28012334/infarcted-mesothelial-cyst-a-case-report
#6
Fernando Navarro, Eric Schmieler, Walter Beversdorf
INTRODUCTION: Mesenteric and omental mesothelial cysts are rare, accounting for only 1 in 100,000 hospital admissions for abdominal pain (Tan Jane et al., 2009) [1]. They are often discovered only on CT imaging, which is frequently non-definitive in identifying an exact tissue source owing to overlapping radiographic features with other masses (Stoupis et al., 1994) [2]. The symptoms manifested by such masses are also nonspecific, favoring consideration of more frequently encountered problems in the scope of general surgery over cystic masses in the differential diagnosis...
November 15, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28012116/serum-chromogranin-a-as-a-complementary-marker-for-the-prediction-of-prostate-cancer-specific-survival
#7
Christian Niedworok, Stephan Tschirdewahn, Henning Reis, Nils Lehmann, Miklós Szücs, Péter Nyirády, Imre Romics, Herbert Rübben, Tibor Szarvas
Better prognostication of clinically localized prostate cancer (PCA) is urgently needed. Former studies using different study end-points provided controversial results regarding the prognostic value of serum chromogranin A (CGA) in clinically localized PCA. However, serum CGA was not tested for correlation with the most significant study end-point of long-term disease-specific survival (DSS). CGA and matrix metalloproteinase-7 (MMP7) levels were measured by the BRAHMS KRYPTOR in two independent patient groups with 127 serum and 110 plasma samples...
December 23, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/27989046/valve-replacement-in-patients-with-carcinoid-heart-disease-choosing-the-right-valve-at-the-right-time
#8
Amit Korach, Simona Grozinsky-Glasberg, Joseph Atlan, Abeer Dabah, Karine Atlan, Ehud Rudis, Amir Elami, David J Gross, Michael J Reardon, Oz M Shapira
BACKGROUND: The prosthetic valve of choice in patients with carcinoid valve disease (CVD) remains controversial due to the limited life expectancy of patients with advanced-stage neuroendocrine tumors (NETs) on the one hand, and concerns regarding structural valve deterioration (SVD) on the other hand. METHODS: The records of 17 patients (11 females, seven males; mean age 65 ± 11 years; undergoing 18 operations) with primarily right heart failure due to CVD were reviewed...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27852814/spontaneous-proliferative-and-neoplastic-lesions-in-thyroid-and-parathyroid-glands-of-nondomestic-felids
#9
Jenny P Pope, James Steeil, Edward C Ramsay, Danielle Reel, Shelley J Newman
Based on microscopic and immunohistochemical characterization, we documented spontaneous proliferative and neoplastic lesions in the thyroid and parathyroid glands of nondomestic felids. Ten animals (4 leopards, 3 tigers, and 3 cougars), all with a previous diagnosis of thyroid neoplasia were identified from the University of Tennessee College of Veterinary Medicine database. The mean age of affected animals was 15.9 y. Twelve neoplasms were identified; 2 animals had 2 concurrent neoplasms. After immunohistochemical characterization using a panel of chromogranin A, thyroglobulin, and calcitonin, 7 of the former thyroid neoplasms were diagnosed as thyroid adenomas, 1 was diagnosed as a thyroid carcinoma, and 4 were diagnosed as parathyroid adenomas...
January 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27852542/factors-associated-with-elevated-serum-chromogranin-a-levels-in-patients-with-autoimmune-gastritis
#10
Çağdaş Kalkan, Fatih Karakaya, İrfan Soykan
BACKGROUND/AIMS: Chromogranin A is an important tool in the diagnosis of neuroendocrine tumors. Autoimmune gastritis is an autoimmune disorder marked by hypergastrinemia, which stimulates enterochromaffin-like cell proliferation. Chromogranin A is also elevated in autoimmune gastritis patients with a different level of increase in each patient. The goal of this study is to explore constituents that influence serum chromogranin A levels in autoimmune gastritis patients. MATERIALS AND METHODS: One hundred and eighty-eight autoimmune gastritis patients and 20 patients with type I gastric carcinoid tumors were analyzed retrospectively and compared to 110 functional dyspepsia patients in terms of factors that might affect serum chromogranin A levels...
November 2016: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/27829249/dcr3-tff3-and-midkine-are-novel-serum-biomarkers-in-small-intestinal-neuroendocrine-tumors
#11
Katarina Edfeldt, Kosmas Daskalakis, Christofer Bäcklin, Olov Norlén, Eva Tiensuu Janson, Gunnar Westin, Per Hellman, Peter Stålberg
Small intestinal neuroendocrine tumors (SI-NETs) are amine- and peptide producing neoplasms. Most patients display metastases at the time of diagnosis, they have an unpredictable individual disease course and the tumors are often therapy resistant. Chromogranin A (CgA) and 5-hydroxyindoleacetic acid (5-HIAA) are the clinically most used biomarkers today, but there is a great need for novel diagnostic and prognostic biomarkers and new therapeutic targets. Sixty-nine biomarkers were screened in serum from 23 SI-NET patients and 23 healthy controls using multiplex PLA (proximity ligation assay)...
November 9, 2016: Neuroendocrinology
https://www.readbyqxmd.com/read/27796466/randomised-trial-of-the-effect-of-a-gastrin-cck2-receptor-antagonist-on-esomeprazole-induced-hypergastrinaemia-evidence-against-rebound-hyperacidity
#12
Malcolm Boyce, Frans van den Berg, Toni Mitchell, Kate Darwin, Steve Warrington
PURPOSE: Hypergastrinaemia induced by proton pump inhibitor (PPI) therapy may cause ECL-cell and parietal-cell hyperplasia and rebound hyperacidity and dyspepsia after PPI withdrawal. The aim of the study was to assess the effect of different dosage-regimens of netazepide, a gastrin/CCK2 receptor antagonist, on PPI-induced hypergastrinaemia and elevated chromogranin A (CgA). METHODS: Six groups of eight healthy subjects participated in a randomised, double-blind study of esomeprazole 40 mg daily for 28 days, in combination with netazepide 1, 5 or 25 mg or placebo, daily, during the last 14 days of esomeprazole or during 14 days after treatment withdrawal...
October 29, 2016: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27682220/the-gastrin-receptor-antagonist-netazepide-yf476-in-patients-with-type-1-gastric-enterochromaffin-like-cell-neuroendocrine-tumours-review-of-long-term-treatment
#13
Liv Sagatun, Patricia Mjønes, Constantin S Jianu, Malcolm Boyce, Hege L Waldum, Reidar Fossmark
OBJECTIVE: Netazepide (YF476) is a recently developed, orally active gastrin receptor antagonist that, in short trials in patients with type 1 gastric enterochromaffin-like cell neuroendocrine tumours, has been shown to induce a significant reduction in the number and size of tumours as well as serum chromogranin A (CgA). The aim of this review is to evaluate the long-term effect and safety of netazepide. PATIENTS AND METHODS: Five patients previously treated with netazepide in an open-label trial were offered continuous treatment with netazepide 25 mg once daily...
November 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27635959/congress-of-neurological-surgeons-systematic-review-and-evidence-based-guideline-for-pretreatment-endocrine-evaluation-of-patients-with-nonfunctioning-pituitary-adenomas
#14
Maria Fleseriu, Mary E Bodach, Luis M Tumialan, Vivien Bonert, Nelson M Oyesiku, Chirag G Patil, Zachary Litvack, Manish K Aghi, Gabriel Zada
BACKGROUND: Nonfunctioning pituitary adenomas (NFPAs) are among the most common pituitary lesions and may present with hypopituitarism and/or hyperprolactinemia. OBJECTIVE: To review the existing literature as it pertains to preoperative endocrine assessment in the workup for NFPAs. METHODS: A systematic review methodology was utilized to identify and screen articles assessing the role and results of preoperative laboratory assessment in patients with NFPAs...
October 2016: Neurosurgery
https://www.readbyqxmd.com/read/27523316/-hereditary-phaeochromocytoma-in-twins
#15
Géza Tóth, Attila Patócs, Miklós Tóth
Phaeochromocytoma is a tumor of the catecholamine-producing cells of the adrenal gland. Extraadrenal phaeochromocytomas are frequently called paragangliomas. The majority of phaeochromocytomas are sporadic, however, about 25-30% are caused by genetic mutation. These tumor are frequently referred as hereditary phaeochromocytomas/paragangliomas. Their incidence increases continuously which can be attributed to availability of genetic examination and to the discovery of novel genes. The 47-year-old female patient underwent abdominal computed tomography which revealed bilateral adrenal gland enlargement...
August 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27484122/catestatin-vasostatin-cortisol-temperature-heart-rate-respiratory-rate-scores-of-the-short-form-of-the-glasgow-composite-measure-pain-scale-and-visual-analog-scale-for-stress-and-pain-behavior-in-dogs-before-and-after-ovariohysterectomy
#16
Thanikul Srithunyarat, Odd V Höglund, Ragnvi Hagman, Ulf Olsson, Mats Stridsberg, Anne-Sofie Lagerstedt, Ann Pettersson
BACKGROUND: The stress reaction induced by surgery and associated pain may be detrimental for patient recovery and should be minimized. The neuropeptide chromogranin A (CGA) has shown promise as a sensitive biomarker for stress in humans. Little is known about CGA and its derived peptides, catestatin (CST) and vasostatin (VS), in dogs undergoing surgery. The objectives of this study were to investigate and compare concentrations of CGA epitopes CST and VS, cortisol, body temperature, heart rate, respiratory rate, scores of the short form of the Glasgow composite measure pain scale (CMPS-SF) and visual analog scales (VAS) for stress and pain behavior in dogs before and after ovariohysterectomy...
August 2, 2016: BMC Research Notes
https://www.readbyqxmd.com/read/27444719/differences-between-older-and-young-patients-with-autoimmune-gastritis
#17
Çağdaş Kalkan, Irfan Soykan
AIM: Elderly patients with autoimmune gastritis might have different symptoms than those of young patients. The aim of the present study was to compare presented symptoms and laboratory parameters associated with autoimmune gastritis in both old and young age groups. METHODS: A total of 355 patients with autoimmune gastritis were stratified into two groups: 65 years or older (n = 119, mean age 69.47 ± 5.027 years), and under 65 years (n = 236, mean age 45...
July 22, 2016: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/27309188/follow-up-of-patients-with-ecl-cell-derived-tumours
#18
Liv Sagatun, Reidar Fossmark, Constantin S Jianu, Gunnar Qvigstad, Ivar S Nordrum, Patricia Mjønes, Helge L Waldum
OBJECTIVES: To review the presentation, treatment and outcome of patients with type 1 gastric carcinoid tumours. MATERIAL AND METHODS: We retrospectively reviewed medical records and re-evaluated histopathological specimens of 26 patients with type 1 gastric carcinoids treated at a single tertiary referral centre from 1993 to 2013, with median time of follow-up 52.5 months (IQR 90.8). RESULTS: Seven patients (27%) had single tumours and 19 patients (73%) multiple tumours at the time of diagnosis...
November 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27306228/neuroendocrine-tumor-of-the-appendix-in-children
#19
Hao Wu, Murali Chintagumpala, John Hicks, Jed G Nuchtern, M Fatih Okcu, Rajkumar Venkatramani
Neuroendocrine tumor (NET) of the appendix is the most common gastrointestinal epithelial tumor in children. The utility of serum markers or the indication for hemicolectomy has not been established in children. In 45 children diagnosed with appendiceal NET, 89% NETs were incidentally found following appendectomy performed for suspected acute appendicitis. The median age was 12 years, and 56% patients were female. Postoperative somatostatin scan (n=5), serum chromogranin A (n=4), and urine 5-HIAA (n=9) were all within normal limits...
March 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/27303059/effects-of-repeated-freeze-thaw-cycles-on-endocrine-parameters-in-plasma-and-serum
#20
J J Hillebrand, A C Heijboer, E Endert
BACKGROUND: Repeated freezing and thawing of plasma (or serum) may influence the stability of plasma (or serum) constituents. Despite the alarming warnings from commercial manuals that freeze-thaw cycles affect the stability of hormones in plasma (or serum), surprisingly little, consistent information about this concept is available in literature. METHODS: We studied the stability of 15 endocrine parameters (adrenocorticotropic hormone, osteocalcin, plasma renin activity, α-subunits, cortisol binding globulin, glucagon, inhibin B, fT4, TT4, TT3, rT3, TBG, TSH, chromogranin A and thyroglobulin upon repeated freeze-thaw cycles in plasma (or serum) samples from 10 volunteers...
June 14, 2016: Annals of Clinical Biochemistry
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