Results 141 to 150 of about 13,008 (277)

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

open access: yesAndrology, EarlyView.
ABSTRACT Background The main functions of testes are sperm production and androgen secretion in testicular befitting microenvironment. Excessive level of the reactive oxygen species (ROS) from metabolism and cellular events can lead to oxidative stress (OS) and ferroptosis, which injure the functions of mitochondria and endoplasmic reticulum (ER) of ...
Shuning Yuan   +10 more
wiley   +1 more source

Growth, development and maturation of the marsupial follicle and oocyte [PDF]

open access: yes, 2006
© 2004 Dr. Nadine Maree Richings.The follicle and its enclosed oocyte share intimate and critical communication that regulates folliculogenesis and produces a mature oocyte. Protein and RNA accumulated in the oocyte during oogenesis control fertilization
RICHINGS, NADINE MAREE
core  

Hyperactivation and Tyrosine Phosphorylation of Cryopreserved Stallion Spermatozoa in Relation to Conventional In Vitro Fertilization Blastocyst Production

open access: yesAndrology, EarlyView.
ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro   +6 more
wiley   +1 more source

In Vitro Sperm–Epididymosomes Interaction Immediately Before Fertilization Changes Sperm Fertility Potential

open access: yesAndrology, EarlyView.
ABSTRACT Background Sperm acquire fertility ability during epididymal maturation mainly in the epididymal caput and corpus, and once matured, are stored in the epididymal cauda. During storage, interactions with cauda epididymosomes (epEVs) may influence sperm fertility potential; however, the role of such interactions on sperm fertility remains ...
Maíra Bianchi Rodrigues Alves   +7 more
wiley   +1 more source

Recent insights in the ultrastructure of human oocyte [PDF]

open access: yes, 2015
The positive outcome of assisted reproductive technologies (ART) depends on the oocyte quality, in terms of maintenance of full morphofunctional integrity during its complex and long maturation.
NOTTOLA, Stefania Annarita   +2 more
core  

Vitrification of White-tailed Deer (Odocoileus virginianus) oocytes with sucrose or trehalose for in vitro maturation and fertilization [PDF]

open access: yes
Objective: Evaluate the White-tailed Deer (WTD) in vitro embryo production (IVP) and oocytes vitrified with Trehalose (TH) or Sucrose (SC).Design/methodology/approach: Total vitrified oocytes were placed into two different groups: TH (n60) and SC (n61 ...
Hernández-Pichardo, Ernesto   +9 more
core   +1 more source

ZAN, IZUMO1, and TMEM95 Protein Domains Identify the Physiological Status of the Sperm

open access: yesAndrology, EarlyView.
ABSTRACT Background Infertility is a growing concern, which has led to an increase in the use of assisted reproductive techniques, involving in vitro sperm capacitation. Nonetheless, the optimal capacitation time remains a matter of debate, and it is unknown whether it has an impact on the localization of key membrane proteins.
Miranda Hernández‐Falcó   +5 more
wiley   +1 more source

Studies on factors affected in induced oocyte maturation, ovulation and egg quality in Japanese eel [PDF]

open access: yes
For stable production of eel seedlings, it is necessary to obtain good quality eggs from matured female eel. Ovulated eggs have been able to obtain easily by the progress of techniques for induction of maturation.
カガワ, ヒロヒコ   +3 more
core  

Neuronal and ion channel mechanisms of noxious heat sensing in mammals: A puzzle of sensory physiology and pharmacology

open access: yesBritish Journal of Pharmacology, EarlyView.
Transient receptor potential vanilloid 1 (TRPV1) was the first noxious heat‐sensitive channel discovered. In rodents, its role is robust in the heat response of the cell body of polymodal nociceptors, but surprisingly small in that of the peripheral terminals in the skin.
Gábor Pethő, Peter W. Reeh
wiley   +1 more source

In vitro embryo production via ovum pick-up (OPU) and intracytoplasmic sperm injection (ICSI) in pure and crossbred Japanese Hokkaido native ponies

open access: yesThe Journal of Reproduction and Development
This study evaluated the viability of in vitro embryo production using ovum pick-up (OPU) and intracytoplasmic sperm injection (ICSI) as breeding techniques for pure and crossbred Hokkaido native ponies (n = 9).
M A HANNAN   +10 more
doaj   +1 more source

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