Results 81 to 90 of about 128,725 (200)

Mitochondria directly influence fertilisation outcome in the pig [PDF]

, 2006
The mitochondrion is explicitly involved in cytoplasmic regulation and is the cell's major generator of ATP. Our aim was to determine whether mitochondria alone could influence fertilisation outcome.
Abeydeera, Alves, Anderson, Barritt, Barritt, Barritt, Blok, Brenner, Cetica, Clayton, Cohen, Cohen, Cran, de Loos, Downs, Dumollard, Eisen, Emma C Spikings, Findlay, Fong, Hue, Jansen, Justin C St John, King, Koo, Krakauer, Larsson, Larsson, Li, Lin, Liu, Mach  ty, Marchington, Mariana Freitas, Marinos, McConnell, Michaels, Moyes, Park, Pik  , Poulton, Raghu, Reynier, Roca, Sathananthan, Shahinaz H El Shourbagy, Shea, Spelbrink, St John, St John, St John, St John, St. John, Stojkovic, Sun, Tessa, Tian, Trimarchi, Ursing, Van Blerkom, Van Blerkom, Van Blerkom, Wakayama, Wallace, Wilmut, Zamzami, Zernicka-Goetz   +66 more
core   +3 more sources

Decline in human sperm counts during the past 50 years? [PDF]

, 2005
There is widespread concern that environmental pollutants acting as xenoestrogens may affect human fertility adversely. Whether this has already made an impact on human fertility worldwide remains debatable at the present stage.
Jayachandra, Srinivasa, Pinto, Maxim, Souza, Urban JAD   +2 more
core  

The chicken embryo and its micro environment during egg storage and early incubation [PDF]

, 2008
When egg storage periods are prolonged (>7 days), hatchability and chick quality declines. The reason for this decline has been investigated, but is still not completely understood.
Brand, H., van den, Kemp, B., Meijerhof, R., Reijrink, I.A.M.   +3 more
core   +2 more sources

Ultrastructure of the reproductive system of the black swamp snake (\u3ci\u3eSeminatrix pygaea\u3c/i\u3e). Part III. The sexual segment of the male kidney. [PDF]

, 2002
In mature male snakes and lizards, a distal portion of the nephron is hypertrophied in relation to its appearance in females and immature males. This sexual segment of the male kidney apparently provides seminal fluid that is mixed with sperm and ...
Sever, David M.
core   +1 more source

Anatomy and Histology of the Male Reproductive Complex of the Onion Maggot Fly, \u3ci\u3eDelia Antiqua\u3c/i\u3e, (Diptera: Anthomyiidae) Including Some Comparisons With \u3ci\u3eD. Platura\u3c/i\u3e and \u3ci\u3eD. Radicum\u3c/i\u3e [PDF]

, 2018
In Delia antiqua (Meigen) (Diptera: Anthomyiidae), the male reproductive complex is composed of a pair of testes, paired vas deferens connecting the testes to the anterior ejaculatory duct, and a pair of paragonial (accessory) glands. Each D.
Grimnes, Karin A, Miller, James R
core   +2 more sources

Is semen analysis without strict criteria misleading decisions in IVF? A prospective systematic study

International Journal of Reproductive BioMedicine, 2018
Background: Sperm morphology has been strongly linked to fertilization. This makes it an important component in semen analysis. They are usually assessed by world health organization (WHO) standard or Kruger strict criteria in in-vitro fertilization (IVF)
Faduola Paul, Gbolahan Oladele Obajimi, Charles Olubukunmi Kolade   +2 more
doaj  

Aberrant protamination in sperm correlates to anomalous nuclear and cytoplasmic architectures in infertile males with sperm dysmorphology

Asian Journal of Andrology
Aberrant sperm protamination is linked to sperm dysmorphology and nuclear chromatin condensation. Yet, its effects on sperm cytoplasmic maturation remain largely unexplored.
Huan Jiang, Chu-Jie Huang
doaj   +1 more source

Influence of Age, Obesity, Smoking, Sleep duration, and Sleep Quality on Concentration, Morphology, and Sperm Motility: A Cross-Sectional Study [PDF]

International Journal of Fertility and Sterility
Background: Age, smoking, sleep duration, sleep quality, and obesity are risk factors that can affect the amount of sperm concentration, morphology, and motility.
Uki Retno Budihastuti, Eriana Melinawati, Teguh Prakosa, Affi Angelia Ratnasari, Cahyono Hadi, Abdurahman Laqif, Mulyoto Pangestu, Latifa Oktadiani Putri, Bhisma Murti, Ida Nurwati   +9 more
doaj   +1 more source

Sperm chromatin anomalies can influence decondensation after intracytoplasmic sperm injection [PDF]

, 2017
In this study we investigated whether morphology and chromatin anomalies in human spermatozoa can influence fertilization after intracytoplasmic sperm injection (ICSI).
Bianchi, P.G., Bizzaro, D., Campana, A., Jaquenoud, N., Manicardi, G., Sakkas, D., Urner, F., Wagner, I.   +7 more
core  

Sperm competition affects sex allocation but not sperm morphology in a flatworm [PDF]

, 2018
Sperm competition has been shown to be an important evolutionary agent affecting the behaviour, physiology, and morphology of both males and females. One morphological trait that is particularly likely to be affected by sperm competition is sperm size ...
Janicke, Tim, Schärer, Lukas
core