نتایج جستجو برای: whole ovary

تعداد نتایج: 324258  

Journal: :International journal of reproduction, contraception, obstetrics and gynecology 2023

Sertoli-Leydig cell tumor (SLCTs) of the ovary, also known as androblastoma, is a rare neoplasm from group sex cord-stromal tumors ovary. They account for less than 0.5% all ovarian tumors. typically occur in young and reproductive women patients usually present with abdominal swelling or pain. A case 35-year-old multiparous female presented mass, ultrasonography revealed large abdomino-pelvic ...

2017
Seido Takae Kosuke Tsukada Yorino Sato Naoki Okamoto Tai Kawahara Nao Suzuki

Except for histological study, there are currently no suitable techniques available for the detection and identification of primordial follicles in ovary of primary ovarian insufficiency patients who have undetectable AMH levels. Also, the ability to locate and quantify follicles on ovarian cortex strips, without fixation, is valuable for patients who could undergo subsequent successful ovarian...

Journal: :PLoS ONE 2009
Francisco Álvarez-Blasco Ma Ángeles Martínez-García Manuel Luque-Ramírez Naiara Parraza José L. San Millán Héctor F. Escobar-Morreale

BACKGROUND Hp(2) alleles of the haptoglobin alpha-chain polymorphism reduce the anti-oxidant properties and increase the pro-inflammatory actions of this acute-phase protein in a gene-dosage fashion. We hypothesized that the haptoglobin polymorphism might contribute to the increased oxidative stress and low-grade chronic inflammation frequently associated with polycystic ovary syndrome, obesity...

2017
Tomohiro Osugi Yasunori Sasakura Honoo Satake

The nervous system of ascidians is an excellent model system to provide insights into the evolutionary process of the chordate nervous system due to their phylogenetic positions as the sister group of vertebrates. However, the entire nervous system of adult ascidians has yet to be functionally and anatomically investigated. In this study, we have revealed the whole dorsal and siphon nervous sys...

2015
Mamiko ONO Hiroki AKUZAWA Yasuo NAMBO Yuuko HIRANO Junpei KIMURA Satoko TAKEMOTO Sakiko NAKAMURA Hideo YOKOTA Ryutaro HIMENO Tohru HIGUCHI Tadatoshi OHTAKI Shigehisa TSUMAGARI

A three-dimensional internal structure microscopy (3D-ISM) can clarify the anatomical arrangement of internal structures of equine ovaries. In this study, morphological changes of the equine ovary over the first 12 months of life were investigated by 3D-ISM in 59 fillies and by histological analysis in 2 fillies. The weight and volume of the paired ovaries initially decreased from 0 to 1 months...

2017
Mohamed Shehata Ali Mohamed

Children and young adults, who suffer from cancer, receive gonadotoxic therapy, which destroys their fertile abilities after survival. Ovarian cryopreservation and transplantation provide the promising solution to this problem, where the ovary can be removed before the gonadotoxic therapy and reimplanted after patient's survival, where the ovary is to be cryopreserved during the period of the t...

2014
Sheng Wu Sara Divall Amanda Nwaopara Sally Radovick Fredric Wondisford CheMyong Ko Andrew Wolfe

Women with polycystic ovary syndrome (PCOS) exhibit elevated androgen levels, oligoanovulation, infertility, and insulin resistance in metabolic tissues. The aims of these studies were to determine the role of insulin signaling in the development and function of ovarian theca cells and the pathophysiologic effects of hyperinsulinism on ovarian function in obesity. We disrupted the insulin recep...

2015
Shan Quah Casper J. Breuker Peter W. H. Holland Andreas Hejnol

microRNAs (miRNAs) are important regulators of animal development and other processes, and impart robustness to living systems through post-transcriptional regulation of specific mRNA transcripts. It is postulated that newly emergent miRNAs are generally expressed at low levels and with spatiotemporally restricted expression domains, thus minimising effects of spurious targeting on animal trans...

Journal: :Insect biochemistry and molecular biology 2000
A C Melo D Valle E A Machado A P Salerno G O Paiva-Silva N L Cunha E Silva W de Souza H Masuda

The synthesis and secretion of vitellogenin by the ovary of Rhodnius prolixus was investigated. Using whole ovary or epithelial cells isolated from follicles of different sizes, it is shown that the follicle cells are a site of synthesis for this protein in the ovary. The ovaries or follicle cells were incubated in vitro with [(35)S]-methionine or (32)Pi and the secretion of newly synthesized o...

2015
Stephanie Morgan Lisa Campbell Vivian Allison Alison Murray Norah Spears

The mammalian ovary is composed of ovarian follicles, each follicle consisting of a single oocyte surrounded by somatic granulosa cells, enclosed together within a basement membrane. A finite pool of follicles is laid down during embryonic development, when oocytes in meiotic arrest form a close association with flattened granulosa cells, forming primordial follicles. By or shortly after birth,...

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