Results: 11

Apoplexy in sporadic pituitary adenomas: a single referral center experience and AIP mutation analysis

ABSTRACT Objective: To analyze the clinical, laboratory, and radiological findings and management of patients with clinical pituitary apoplexy and to screen for aryl hydrocarbon receptor-interacting protein (AIP) mutations. Subjects and methods: The clinical findings were collected from the medical rec...

Proteína moduladora de la actividad del receptor de aril hidrocarburos (AIP): genética, bioquímica e impacto clínico

Repert. med. cir; 30 (1), 2021
El gen AIP (proteína moduladora de la actividad del receptor de aril hidrocarburos) se localiza en la región 11q13.2 y codifica para una proteína de 330 aminoácidos que interactúa con el factor de transcripción AhR (receptor para aril hidrocarburos). Las muta...

EIF1AX c.338-2A>T splice site mutation in a patient with trabecular adenoma and cytological indeterminate lesion

SUMMARY The EIF1AX gene mutations have been recently associated with papillary thyroid carcinoma and anaplastic thyroid cancer. According with these reports, the gene as been considered as a drive gene for thyroid cancer development. However, the occurrence of these alterations in benign thyroid lesions ...

Estudios clínicos y genéticos en tres miembros de una familia afectados con adenomas hipofisarios aislados con prolactinomas homogéneos
Clinical and genetic studies of a three-member familial isolated pituitary adenoma with homogeneous prolactinomas

Medicina (B.Aires); 80 (2), 2020
La mayoría de los adenomas hipofisarios son esporádicos, pero un 3-5% puede ocurrir en un contexto familiar y hereditario. Este es el caso de la neoplasia endocrina múltiple de tipo 1 (NEM1), complejo de Carney (CNC) y adenomas hipofisarios aislados familiares (FIPA). El FIPA es una condición infrecu...

Hereditary pituitary tumor syndromes: genetic and clinical aspects

Rev. invest. clín; 72 (1), 2020
ABSTRACT The pituitary gland is responsible for the synthesis and secretion of various hormones that play a key role in regulating endocrine function and homeostasis. Pituitary adenomas (PA) are benign epithelial tumors arising from the endocrine cells of the anterior pituitary gland. Clinically relevant...

Effect of lncRNA HULC knockdown on rat secreting pituitary adenoma GH3 cells

Braz. j. med. biol. res; 52 (4), 2019
Pituitary adenoma is one of the most common tumors in the neuroendocrine system. This study investigated the effects of long non-coding RNAs (lncRNAs) highly up-regulated in liver cancer (HULC) on rat secreting pituitary adenoma GH3 cell viability, migration, invasion, apoptosis, and hormone secretion, a...

Study of major genetic factors involved in pituitary tumorigenesis and their impact on clinical and biological characteristics of sporadic somatotropinomas and non-functioning pituitary adenomas

Braz. j. med. biol. res; 51 (9), 2018
Genetic and functional aberrations of guanine nucleotide-binding protein, alpha stimulating (GNAS), aryl hydrocarbon receptor interacting protein (AIP), and pituitary tumor transforming gene (PTTG) are among the most prominent events in pituitary tumorigenesis. A cohort of Brazilian patients with somatot...

Expression of E-cadherin, Slug and NCAM and its relationship to tumor invasiveness in patients with acromegaly

Braz. j. med. biol. res; 51 (2), 2018
Pituitary adenomas account for 10-15% of primary intracranial tumors. Growth hormone (GH)-secreting adenomas account for 13% of all pituitary adenomas and cause acromegaly. These tumors can be aggressive, invade surrounding structures and are highly recurrent. The objective of this study was to evaluate ...

Benchmarking pathway interaction network for colorectal cancer to identify dysregulated pathways

Braz. j. med. biol. res; 50 (5), 2017
Different pathways act synergistically to participate in many biological processes. Thus, the purpose of our study was to extract dysregulated pathways to investigate the pathogenesis of colorectal cancer (CRC) based on the functional dependency among pathways. Protein-protein interaction (PPI) informati...

Serological under expression of microRNA-21, microRNA-34a and microRNA-126 in colorectal cancer

Acta cir. bras; 31 (supl.1), 2016
PURPOSE: This paper describes the ability of miRNA value predict oncological outcomes in CRC patients and correlates to clinical and pathologic variables. METHODS: We prospectively analyzed the serological expression of microRNA-21, microRNA-34a, and microRNA-126 in 37 stage II - IV CRC patients and co...