Results 141 to 150 of about 39,103 (266)

Male age: negative impact on sperm DNA fragmentation

Aging, 2019
The main goal of semen processing in Assisted Reproductive Techniques (ART) is to select sperm with good viability and, at the same time, remove Reactive Oxygen Species (ROS) sources (such as leukocytes) and reduce the percentage of morphologically abnormal sperm for fertility treatment.
Albani E., Castellano S., Gurrieri B., Arruzzolo L., Negri L., Borroni E. M., Levi-Setti P. E.   +6 more
openaire   +3 more sources

Sequence and expression analysis of potential spermatogenesis‐specific gene cognates in the Caribbean fruit fly, Anastrepha suspensa

Insect Science, EarlyView.
Abstract The sterile insect technique (SIT) is a highly effective biologically‐based method for the suppression of many insect pest populations. SIT efficacy could be improved by methods of male sterilization that avoid the use of irradiation that can result in diminished fitness and mating competitiveness.
Alfred M. Handler, Richard B. Furlong, Chao Chen, Daniel A. Hahn   +3 more
wiley   +1 more source

The Comparison of HA Binding and Zeta Methods Efficiency in Selection of Sperm with Normal Morphology and Intact Chromatin

مجله دانشکده پزشکی اصفهان, 2009
Background: Sperm selection for ICSI is based on morphology and motility, but these parameters may not relevant chromatin integrity. One of the sperm selection methods for ICSI is based on sperm functional characteristics.
Mohammad Reza Deemeh, Mohammad Hossein Nasr-Esfahani, Shahnaz Razavi, Habibollah Nazem, Mahnaz Shayeste Moghadam, Marziye Tavalaee   +5 more
doaj  

Chromosome‐scale genome assembly of the South American fruit fly, Anastrepha fraterculus sp.1

Insect Science, EarlyView.
Anastrepha fraterculus sp. 1 is a major fruit fly pest in Argentina, currently controlled through chemical treatments and traps. This study aims to enhance the genomic understanding of this species to support the development of sterile insect technique as well as the use of innovative technologies.
Máximo Rivarola, Claudia A. Conte, Pierre Berube, Shu‐Huang Chen, M. Cecilia Giardini, Alejandra C. Scannapieco, Fabián H. Milla, María C. Soria, Romina M. Russo, Juan P. Wulff, Haig H. Djambazian, Rolando R. Pomar, Alfred M. Handler, Kostas Bourtzis, Ioannis Ragoussis, Silvia B. Lanzavecchia   +15 more
wiley   +1 more source

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

Integrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli, Al‐Sayed Al‐Soudy, Mariangela Norcia, Stefania Galdiero, Sara Palladino, Emanuela Cirillo, Gianluca Polese, Anna Di Cosmo   +7 more
wiley   +1 more source

Sperm DNA impairment in the bull: causes, influences on reproduction and evaluations [PDF]

, 2018
Conventional semen examination involving sperm motility, viability and morphology remains the backbone of assessing the fertility status of a sire. However, there remains instances where these semen parameters appear normal but cases of low conception ...
Baiee, Falah Hasan Ali, Degu, Nurhusien Yimer, Haron, Abd Wahid, Omar, Mohamed Ariff, Yusoff, Rosnina   +4 more
core  

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

Integrative Zoology, EarlyView.
We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao, Suying Ma, Shiyi Zhang, Fan Bai, Lingyao Gan, Wenjing Tao, Feilong Wang, Deshou Wang, Lina Sun   +8 more
wiley   +1 more source

Swim‐up method is superior to density gradient centrifugation for preserving sperm DNA integrity during sperm processing

Reproductive Medicine and Biology
Purpose This study aimed to evaluate the effects of swim‐up and density gradient centrifugation methods on sperm DNA fragmentation. Methods Nineteen normozoospermic patient samples with ≥100 × 106 motile sperms were included in this study.
Kenji Amano, Satoko Oigawa, Koichiro Ichizawa, Yukiko Tokuda, Mami Unagami, Mami Sekiguchi, Mayuko Furui, Kentaro Nakaoka, Ayumu Ito, Rika Hayashi, Yuko Tamaki, Yuko Hayashi, Yusuke Fukuda, Yukiko Katagiri, Masahiko Nakata, Koichi Nagao   +15 more
doaj   +1 more source

The use of deidentified organ donor testes for research

Andrology, EarlyView.
Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova, Marnie W. Skinner, Juliana I. Candelaria, Stephen R. Wellard, Philip W. Jordan   +4 more
wiley   +1 more source

Sperm DNA fragmentation testing [PDF]

Evidence Based Women's Health Journal, 2019
Sandro Esteves, Ahmad Majzoub, Matheus Roque   +2 more
openaire   +1 more source