Results 41 to 50 of about 566,665 (344)

Effect of seven oriental herbs mixture (Jogyeongbohyeoldan) on the restoration of ovarian aging in aged mice

Clinical and Experimental Obstetrics & Gynecology, 2021
Purpose of Investigation: Ovarian aging remains a difficult problem in infertility treatment. The traditional oriental herbs have been widely used for female infertility treatment.
Jong-Kil Joo, Chae-Hak Lim, MinJung Park, HyeonJeong Kim, Chang-Woon Kim, Chul-Hee Yoon, Jeong-Eun Yoo, BoSun Joo   +7 more
doaj   +1 more source

The sperm’s tale [PDF]

Investigative Genetics, 2014
Copenhagen is as flat as the proverbial pan-cake. A good way to appreciate this is to visit the Rundetaarn, a 35 m tower whose summit is reached by a spiral ramp designed in the 17th century to accommodate a horse and cart carrying books to its elevated library, and in more recent times inviting the competitive attention of puffing middle-aged blokes ...
openaire   +3 more sources

Sperm thermotaxis [PDF]

Molecular and Cellular Endocrinology, 2006
Thermotaxis--movement directed by a temperature gradient--is a prevalent process, found from bacteria to human cells. In the case of mammalian sperm, thermotaxis appears to be an essential mechanism guiding spermatozoa, released from the cooler reservoir site, towards the warmer fertilization site.
Anat, Bahat, Michael, Eisenbach
openaire   +2 more sources

Leydig cell metabolic disorder act as a new mechanism affecting for focal spermatogenesis in Klinefelter syndrome patients: a real world cross-sectional study base on the age

Frontiers in Endocrinology, 2023
BackgroundKlinefelter’s syndrome (KS) was once considered infertile due to congenital chromosomal abnormalities, but the presence of focal spermatozoa changed this.
Huang Liu, Zhenhui Zhang, Yong Gao, Hai Lin, Zhiyong Zhu, Houbin Zheng, Wenjing Ye, Zefang Luo, Zhaohui Qing, Xiaolan Xiao, Lei Hu, Yu Zhou, Xinzong Zhang   +12 more
doaj   +1 more source

Sperm storage [PDF]

Current Biology, 2012
(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Orr, Teri J., Zuk, Marlene
openaire   +2 more sources

A pathogenic variant in the uncharacterized RNF212B gene results in severe aneuploidy male infertility and repeated IVF failure

HGG Advances, 2023
Summary: Quantitative and qualitative spermatogenic impairments are major causes of men’s infertility. Although in vitro fertilization (IVF) is effective, some couples persistently fail to conceive.
Moran Gershoni, Tslil Braun, Ron Hauser, Shimi Barda, Ofer Lehavi, Mira Malcov, Tsvia Frumkin, Yael Kalma, Shmuel Pietrokovski, Eli Arama, Sandra E. Kleiman   +10 more
doaj   +1 more source

Comparison of outcomes between pulsatile gonadotropin releasing hormone and combined gonadotropin therapy of spermatogenesis in patients with congenital hypogonadotropic hypogonadism

Reproductive Biology and Endocrinology
Background To evaluate whether there was a difference in outcome between pulsatile gonadotropin releasing hormone (GnRH) therapy and human chorionic gonadotropin/human menopausal gonadotropin (hCG/HMG) therapy for induction of spermatogenesis in post ...
Yi Zheng, Heng-Zhou Bai, Gui-Cheng Zhao, Kun Tian, Jun-Tao Yue, Ding-Ming Li, Xiao-Hui Jiang   +6 more
doaj   +1 more source

Cryopreservation of common carp sperm [PDF]

, 2003
Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Horváth, Ákos, Miskolczi, Edit, Urbányi, Béla   +2 more
core   +1 more source

Establishment and optimization of the two‐step induction system for generating primordial germ cell‐like cells from chicken embryonic stem cells

FEBS Open Bio, EarlyView.
This study optimizes a two‐step induction system to generate PGCLCs from chicken ESCs. The induced cells express germline markers and migrate to gonads in ovo, offering a novel approach for avian genetic resource conservation. Primordial germ cells (PGCs) are the progenitor cells of sperm and eggs.
Zeyu Li, XianShuai Xu, GuangZheng Liu, XiaoQian Lv, JiuZhou Song, HongYan Sun, YingJie Niu, QiSheng Zuo, Wei Han, BiChun Li, Kai Jin   +10 more
wiley   +1 more source

Egg donors’ attitudes toward identifiability, offspring information, and genetic testing

Reproductive Biology and Endocrinology
Background Research on egg donors’ perspectives regarding identifiability, donor-conceived offspring, and genetic testing remains limited, as most studies have focused on sperm donors.
Emilie Lassen, Josephine G. Lemmen, Guido Pennings, Anne-Bine Skytte   +3 more
doaj   +1 more source