Results 31 to 40 of about 77,621 (311)

Line Scan Raman Microspectroscopy for Label-Free Diagnosis of Human Pituitary Biopsies

open access: yesMolecules, 2019
Pituitary adenomas are neoplasia of the anterior pituitary gland and can be subdivided into hormone-producing tumors (lactotroph, corticotroph, gonadotroph, somatotroph, thyreotroph or plurihormonal) and hormone-inactive tumors (silent or null cell ...
Daniela Bovenkamp   +10 more
doaj   +1 more source

Virus Injection to the Pituitary via Transsphenoidal Approach and the Innervation of Anterior and Posterior Pituitary of Rat

open access: yesFrontiers in Endocrinology, 2020
The theory holds that the anterior pituitary in mammals receives humoral regulation. Previous studies have reported that the pars distalis of the anterior pituitary of several mammalian species contains substance P-, calcitonin gene-related peptide (CGRP)
Xiaohui Li   +9 more
doaj   +1 more source

Spexin in the European sea bass, Dicentrarchus labrax: Characterization, brain distribution, and interaction with Gnrh and Gnih neurons

open access: yesJournal of Comparative Neurology, Volume 531, Issue 2, Page 314-335, February 2023., 2023
The main objective of this work was to obtain detailed information on the distribution and localization of the spexin (Spx) system in the sea bass brain. To this purpose, we first identified and characterized the spx1 gene and analyzed its expression in the central nervous system (CNS) of the European sea bass by using quantitative Real‐Time Polymerase
José A. Paullada‐Salmerón   +2 more
wiley   +1 more source

Pituitary metastases as a rare variant of intracranial metastasis

open access: yesБюллетень сибирской медицины, 2008
Metastatiс spread of neoplasms to the pituitary gland is a relatively common finding in autopsy series of cancer patients. The majority of these patients were asymptomatic.
A. V. Osnitskaya, V. Ye. Olyushin
doaj   +1 more source

Orexinergic neurons in the hypothalami of an Asiatic lion, an African lion, and a Southeast African cheetah

open access: yesJournal of Comparative Neurology, Volume 531, Issue 3, Page 366-389, February 2023., 2023
Photomicrograph of orexinergic neurons forming the main orexinergic neuronal cluster in the hypothalamus of a Southeast African cheetah. While showing the standard features of the orexinergic system, the Southeast African cheetah, along with an Asiatic and an African lion, also exhibits specializations in the organization of this system.
Demi Oddes   +8 more
wiley   +1 more source

MRI Evaluation of Size and Shape of Normal Pituitary Gland: Age and Sex Related Changes [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: For complete assessment of pituitary gland, we should be aware of its normal anatomy with the physiological variations in its size and shape in different age groups in both males and females.
Pratiksha Yadav   +3 more
doaj   +1 more source

Notch-Dependent Pituitary SOX2+ Stem Cells Exhibit a Timed Functional Extinction in Regulation of the Postnatal Gland

open access: yesStem Cell Reports, 2015
Although SOX2+ stem cells are present in the postnatal pituitary gland, how they are regulated molecularly and whether they are required for pituitary functions remain unresolved questions.
Xiaoyan Zhu   +3 more
doaj   +1 more source

DynPeak : An algorithm for pulse detection and frequency analysis in hormonal time series [PDF]

open access: yesPLoS ONE 7, 7 (2012) e39001, 2011
The endocrine control of the reproductive function is often studied from the analysis of luteinizing hormone (LH) pulsatile secretion by the pituitary gland. Whereas measurements in the cavernous sinus cumulate anatomical and technical difficulties, LH levels can be easily assessed from jugular blood.
arxiv   +1 more source

Hypophysial transposition (hypophysopexy) for radiosurgical treatment of pituitary tumors involving the cavernous sinus [PDF]

open access: yes, 2003
Journal ArticleStereotactic radiosurgery (SRS) is performed with increasing frequency in the treatment of residual or recurrent pituitary adenomas. Its major associated risk in these cases of residual or recurrent pituitary tumor adjacent to normal ...
Liu, James K., Schmidt, Meic H.
core   +3 more sources

Brain tumor detection using artificial convolutional neural networks [PDF]

open access: yesarXiv, 2022
In this paper, a convolutional neural network (CNN) was used to classify NMR images of human brains with 4 different types of tumors: meningioma, glioma and pituitary gland tumors. During the training phase of this project, an accuracy of 100% was obtained, meanwhile, in the evaluation phase the precision was 96%.
arxiv  

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