Results 11 to 20 of about 6,393 (222)

Quantitative Measurement of Plasma Free Metanephrines by a Simple and Cost-Effective Microextraction Packed Sorbent with Porous Graphitic Carbon and Liquid Chromatography-Tandem Mass Spectrometry

open access: yesJournal of Analytical Methods in Chemistry, 2021
Plasma free metanephrines are widely used for the diagnosis of pheochromocytoma and paraganglioma (PPGL), yet quantifying metanephrines using a simple and cost-effective approach may be challenging due to preanalytical and analytical constraints. In this
Xin Xiong   +2 more
doaj   +1 more source

Stress biomarkers in adult patients with drug‐resistant epilepsy on a modified Atkins diet: A prospective study

open access: yesEpilepsia Open, 2023
Objective Ketogenic diets like the modified Atkins diet (MAD) are increasingly used in patients with refractory epilepsy. For epilepsy patients, stress is a well‐known seizure‐precipitating factor. New possibilities for measuring biomarkers of stress are
Ellen Molteberg   +7 more
doaj   +1 more source

Correlation between the size of pheochromocytoma and the level of metanephrines

open access: yesEndocrine Regulations, 2023
Objective. Pheochromocytomas (PHEO) and paraganglioma (PGLs) are rare neuroendocrine catecholamine-producing tumors that arise from the chromaffin cells of either the adrenal medulla or extra-adrenal paraganglionic tissues. Despite the recent advances in
Rezkallah Emad   +3 more
doaj   +1 more source

A Laboratory Medicine Perspective on the Investigation of Phaeochromocytoma and Paraganglioma

open access: yesDiagnostics, 2023
Phaeochromocytomas (PC) and sympathetic paragangliomas (PGL) are potentially malignant tumours arising from the adrenal medulla (PC) or elsewhere in the sympathetic nervous system (PGL).
Christopher S. Boot
doaj   +1 more source

Natural History and Management of Familial Paraganglioma Syndrome Type 1: Long-Term Data from a Large Family [PDF]

open access: yes, 2020
Head and neck paragangliomas are the most common clinical features of familial paraganglioma syndrome type 1 caused by succinate dehydrogenase complex subunit D (SDHD) mutation. The clinical management of this syndrome is still unclear.
Cantisani, Vito   +12 more
core   +1 more source

Hypermetabolism and Substrate Utilization Rates in Pheochromocytoma and Functional Paraganglioma

open access: yesBiomedicines, 2022
The overproduction of catecholamines in pheochromocytoma/paraganglioma (PPGL) induces a hypermetabolic state. The aim of this study was to evaluate the incidence of a hypermetabolic state and differences in substrate metabolism in consecutive PPGL ...
Ondřej Petrák   +13 more
doaj   +1 more source

Phasing-in plasma metanephrines determination [PDF]

open access: yesEuropean Journal of Endocrinology, 2013
ObjectivesWe set up plasma normetanephrine (pNMA) and metanephrine (pMA) assays as they demonstrated their usefulness for diagnosing phaeochromocytomas. Our scope is to describe some practical laboratory aspects and the clinical relevance of these assays in our endocrinological or cardiological departments.MethodsWe retrospectively reviewed the results
Brossaud, Julie   +5 more
openaire   +4 more sources

Differential Responses of Urinary Epinephrine and Norepinephrine to 24-h Shift-Work Stressor in Physicians

open access: yesFrontiers in Endocrinology, 2020
Multiple stressors, including 24-h-shifts characterise the working environment of physicians, influencing well-being, health and performance. We aimed to evaluate the effect of the stressor 24-h-shift on the adrenal medullary and sympathoneural system in
Claudia Boettcher   +6 more
doaj   +1 more source

Biochemical Diagnosis of Catecholamine-Producing Tumors of Childhood: Neuroblastoma, Pheochromocytoma and Paraganglioma

open access: yesFrontiers in Endocrinology, 2022
Catecholamine-producing tumors of childhood include most notably neuroblastoma, but also pheochromocytoma and paraganglioma (PPGL). Diagnosis of the former depends largely on biopsy-dependent histopathology, but this is contraindicated in PPGL where ...
Graeme Eisenhofer   +4 more
doaj   +1 more source

A Critical Appraisal of Contemporary and Novel Biomarkers in Pheochromocytomas and Adrenocortical Tumors

open access: yesBiology, 2021
Pheochromocytomas/Paragangliomas (PPGLs) and adrenocortical tumors are rare neoplasms with significant heterogeneity in their biologic and clinical behavior.
Marina Tsoli   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy