Results 51 to 60 of about 14,205 (205)

Effect of transient scrotal hyperthermia on sperm parameters, seminal plasma biochemical markers, and oxidative stress in men

Asian Journal of Andrology, 2015
In this experimental prospective study, we aimed to analyze the effect of transient scrotal hyperthermia on the male reproductive organs, from the perspective of sperm parameters, semen plasma biochemical markers, and oxidative stress, to evaluate ...
Meng Rao, Xiao-Ling Zhao, Jing Yang, Shi-Fu Hu, Hui Lei, Wei Xia, Chang-Hong Zhu   +6 more
doaj   +1 more source

Hormonal control and signaling of the testis of the bat Molossus molossus during the processes of testicular maturation, regression, and recrudescence

The Anatomical Record, EarlyView.
Abstract Molossus molossus, a species of neotropical bat belonging to the Molossidae family, has an annual reproductive cycle that includes two peaks of spermatogenic activity, one in April and another in September, and a period of total testicular regression in December.
Emília M. Soares, Juliana F. Ferraz, Cornélio S. Santiago, Larissa P. R. Venâncio, Arlindo G. Macedo‐Junior, Sebastião R. Taboga, Mateus R. Beguelini   +6 more
wiley   +1 more source

Targeting and fusion proteins during mammalian spermiogenesis

Biological Research, 2001
Regulated exocytosis is controlled by internal and external signals. The molecular machinery controlling the sorting from the newly synthesized vesicles from the Golgi apparatus to the plasma membrane play a key role in the regulation of both the number ...
JOÃO RAMALHO-SANTOS, RICARDO D. MORENO
doaj  

Identification and Determination of the Seminiferous Epithelium Stages and Spermatid Development in the Testis of Aceh Bull (Bos indicus)

Veterinary Medicine International, 2023
This study was conducted to describe the stages of seminiferous epithelium (SE), determine the relative frequency of the stages, and identify the steps of spermatid development during spermatogenesis in the testicular tissue of Aceh bull.
Sri Wahyuni, Tongku Nizwan Siregar, Gholib Gholib, Arianto Saputra, Hafizuddin Hafizuddin, Hamny Sofyan, Muhammad Jalaluddin, Mulyadi Adam, Muslim Akmal   +8 more
doaj   +1 more source

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

Animal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source

Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction?

Clinics
Intracytoplasmic injection with testicular spermatozoa has become a routine treatment in fertility clinics. Spermatozoa can be recovered in half of patients with nonobstructive azoospermia.
Veerle Vloeberghs, Greta Verheyen, Herman Tournaye   +2 more
doaj   +1 more source

The paternal genome and the health of the assisted reproductive technology child

Asian Journal of Andrology, 2015
As a number of children born by assisted reproductive technology (ART) are increasing each year across the developed world, the health of such offspring is a matter of public concern.
Sheena EM Lewis, Kishlay Kumar
doaj   +1 more source

Heat Stress in Quail: Impacts on Health and Productivity, and Mitigation Strategies

Animal Research and One Health, EarlyView.
Heat stress disrupts physiological homeostasis in quail, inducing oxidative stress, immune dysregulation, and metabolic imbalance, which impair growth, reproduction, product quality, and welfare. Integrating nutritional, environmental, and genetic–epigenetic strategies enhances thermotolerance, sustains productivity, and supports climate‐smart quail ...
T. A. Eletu, I. A. Anjola, L. O. Fasasi, D. P. Fadipe, A. T. Afuye, F. O. Fasanya, O. E. Oke   +6 more
wiley   +1 more source

MUTAGENISITAS PARAKUAT DIKLORIDA PADA SEL SPERMATID MENCIT SWISS-WEBSTER (Mus musculus) DENGAN UJI MIKRONUKLEUS

, 2012
Research on the mutagenicity of paraquat to the spermatid of Swiss-Webster mice had been  studied  by micronucleus assay.  The doses of paraquat, which were  17;  25,5;  34 mg/kg bw, physiological saline as negative control, and 40 mg/kg bw of ...
Polianti, Siskasari, Hadiansyah, Cucu
core   +1 more source

Redox regulation of mammalian sperm capacitation

Asian Journal of Andrology, 2015
Capacitation is a series of morphological and metabolic changes necessary for the spermatozoon to achieve fertilizing ability. One of the earlier happenings during mammalian sperm capacitation is the production of reactive oxygen species (ROS) that will ...
Cristian O′Flaherty
doaj   +1 more source