Results 61 to 70 of about 500,171 (198)

Relapse of the pituitary adenoma with a change of its hormonal activity in a female patient with multiple endocrine neoplasia syndrome type 1

open access: yesAlʹmanah Kliničeskoj Mediciny, 2018
Multiple endocrine neoplasia syndrome type 1 (MEN1, Wermer's syndrome) is a group of heterogeneous inherited diseases, with its pathogenesis related to hyperplasia or neoplasms of several endocrine glands.
L. Ya. Rozhinskaya   +7 more
doaj   +1 more source

Epidemiology of Functioning Pituitary Adenomas [PDF]

open access: yesEndocrinology and Metabolism, 2020
Pituitary adenomas (PAs) are defined as benign monoclonal tumors in the pituitary gland that cause symptoms due to either hormonal hypersecretion or a space-occupying effect, and are classified as functioning or non-functioning.
Sang Ouk Chin
doaj   +1 more source

Identification of Differentially Expressed Genes in Pituitary Adenomas by Integrating Analysis of Microarray Data

open access: yesInternational Journal of Endocrinology, 2015
Pituitary adenomas, monoclonal in origin, are the most common intracranial neoplasms. Altered gene expression as well as somatic mutations is detected frequently in pituitary adenomas.
Peng Zhao   +7 more
doaj   +1 more source

Targeted treatment with somatostatin analogues: widening horizons of clinical practice

open access: yesAlʹmanah Kliničeskoj Mediciny, 2022
Targeted treatment with somatostatin analogues (SA) in acromegaly and neuroendocrine neoplasms may have some benefits compared to curative treatments, because these agents decrease excessive hormone secretion and exert a tumor-suppressive effect ...
Vyacheslav S. Pronin   +3 more
doaj   +1 more source

No evidence for oncogenic mutations in guanine nucleotide-binding proteins of human adrenocortical neoplasms [PDF]

open access: yes, 1933
G-Proteins are membrane-bound heterotrimeric polypeptides that couple receptor signals to second messenger systems such as cAMP. Recently, point mutations at 2 codons of the highly preserved alpha-chain of Gs, the adenyl cyclase-stimulating G-protein ...
Chrousos, G. P.   +3 more
core  

Sex differences in the pituitary TGFβ1 system: the role of TGFβ1 in prolactinoma development [PDF]

open access: yes, 2019
Prolactinomas are the most frequent functioning pituitary adenomas, and sex differences in tumor size, behavior and incidence have been described. These differences have been associated with earlier diagnosis in woman, as well as with serum estradiol ...
Abeledo Machado, Alejandra Inés   +6 more
core   +1 more source

The Impact of Surgical Telementoring on Reducing the Complication Rate in Endoscopic Endonasal Surgery of the Skull Base

open access: yesDiagnostics
Background: Pituitary adenomas represent the most common pituitary disorder, with an estimated prevalence as high as 20%, and they can manifest with hormone hypersecretion or deficiency, neurological symptoms from mass effect, or incidental findings on ...
Janez Ravnik   +8 more
doaj   +1 more source

The experience of stereotactic radiosurgery and radiotherapy use in combined treatment of pituitary adenomas

open access: yesUkrainian Neurosurgical Journal, 2015
Introduction. Pituitary tumors take the third place in a structure of CNS neoplasms and ranged from 4 to 17% of all brain tumors.The purpose.
Andrey Gryazov   +6 more
doaj   +1 more source

Diagnosis and management of pituitary apoplexy: a Tunisian data

open access: yesChinese Neurosurgical Journal, 2023
Background Pituitary apoplexy (PA) is defined as the hemorrhage or the infraction of a pituitary adenoma. Aiming to determine the epidemiological, clinical, paraclinical characteristics as well as management and outcomes of PA in our population, we ...
Faten Hadj Kacem   +9 more
doaj   +1 more source

Order-of-mutation effects on cancer progression: models for myeloproliferative neoplasm [PDF]

open access: yesarXiv, 2023
We develop a modeling framework for cancer progression that distinguishes the order of two possible mutations. Recent observations and information on myeloproliferative neoplasms are analyzed within our framework. In some patients with myeloproliferative neoplasms, two genetic mutations can be found, JAK2 V617F and TET2.
arxiv  

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