Results 101 to 110 of about 32,366 (262)

Structural and Ultrastructural Assessment of the Sperm Annulus in Men with Immotile Short-tail Sperm Defects Compared to Normozoospermic Controls: A Case–control Study

Journal of Human Reproductive Sciences
Background: The sperm annulus is a fibrous ring structure formed by septin proteins. It connects the mid-piece and principal piece of the sperm flagellum in mammals and plays a crucial role in flagellar stability and motility Aim: This study aimed to ...
Mahsa Allahgholi, Alemeh Rafaee, Mohammad Ali Sadighi Gilani, Marjan Sabbaghian   +3 more
doaj   +1 more source

CRISPR/Cas9‐mediated Genome‐editing Reveals 10 Testis‐enriched Genes and One Non‐testis‐enriched Gene are Dispensable for Male Fecundity in Mice

Andrology, EarlyView.
ABSTRACT Background More than 1000 genes have been identified as predominantly expressed in the human testis. Advances in gene editing technologies have enabled the rapid and efficient generation of genetically engineered mice. This approach facilitates the screening of genes essential for spermatogenesis by analyzing knockout mouse models.
Yumiao Qiu, Keisuke Shimada, Masahito Ikawa   +2 more
wiley   +1 more source

Seminal Plasma Exosomal miRNA Profiling Reveals hsa‐miR‐7‐5p as a Key Regulator of Sperm Motility in Asthenozoospermia

Andrology, EarlyView.
ABSTRACT Background Asthenozoospermia is a significant contributing factor to male infertility. Accumulating evidence indicates that impaired sperm motility is closely linked to dysregulated microRNA expression during spermatogenesis. Seminal plasma exosomes are enriched with diverse microRNAs, which play pivotal roles in modulating sperm motility, the
Zhi‐Jian Zhu, Meng‐Li Cui, Wen‐Jing Yuan, Jia‐Ning Zhang, Shuo Zhang, Xi‐Qiao Yao, Ruo‐Qing Li, Jin‐Feng Li, En‐Zhong Li   +8 more
wiley   +1 more source

Comparison Between Different DNA and Conventional

مجله كليه طب الكندي, 2012
Background: The discriminative power of the classical WHO parameters in relation to male fertility is quite low, because they only address few aspects of sperm quality and function.
Estabraq . , A Rasool1, Omar . , F Abdul-Rasheed1, Ali F. AL-Hashimi   +2 more
doaj  

Relationship between the Length of Sperm Tail Mitochondrial Sheath and Fertility Traits in Boars Used for Artificial Insemination. [PDF]

Antioxidants (Basel), 2020
Kerns K, Jankovitz J, Robinson J, Minton A, Kuster C, Sutovsky P.   +5 more
europepmc   +1 more source

Microfluidic Intracytoplasmic Sperm Injection (MICSI): A Novel Platform for Sperm Isolation, Selection, and Injection Into Oocytes

Andrology, EarlyView.
ABSTRACT Background Infertility is a pressing global health concern, affecting one in six couples worldwide. The failure rate for assisted reproductive technologies (ART) cycles remains at approximately 78%, with limited improvements often attributed to a lack of technological innovation.
Mehran Dabiri, Dale Mark Goss, Steven Alexander Vasilescu, Majid Ebrahimi Warkiani   +3 more
wiley   +1 more source

Nut Consumption and Sperm Quality in Healthy Men: Results From the Led‐Fertyl Study

Andrology, EarlyView.
ABSTRACT Background Nuts are rich in antioxidants and other bioactive compounds, and recent evidence suggests that their regular consumption may be associated with sperm quality. However, the current scientific evidence remains limited and inconsistent.
Estefanía Dávila‐Córdova, Nancy Babio, Cristina Valle‐Hita, María Fernández de la Puente, Alfonso Beltran‐Arasa, Miguel Cebrián‐Puig, Violeta Fambuena‐Perez, Iván García‐Serrano, Michelle M. Murphy, Jordi Salas‐Salvadó, Albert Salas‐Huetos   +10 more
wiley   +1 more source

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

Andrology, 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, Nini Wei, Weiwei Ma, Mengting Hu, Bei Zhang, Li Gao, Chao Gao, Xiaoyu Yang, Yan Meng, Jiayin Liu, Yugui Cui   +10 more
wiley   +1 more source

PRSS50 is a testis protease responsible for proper sperm tail formation and function.

Development, 2021
Scovell JM, Bournat JC, Szafran AT, Solis M, Moore J, Rivera A, Chen CH, Zhang J, Wilken N, Seth A, Jorgez CJ.   +10 more
europepmc   +1 more source

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

Andrology, 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, Carolina C. Porflidt, Alexandra L. Ash, Jacobo S. Rodriguez, Perla D. Fleury, Edward L. Squires, Elaine M. Carnevale   +6 more
wiley   +1 more source