Results 71 to 80 of about 66,025 (308)

Low Sperm Motility Is Determined by Abnormal Protein Modification during Epididymal Maturation

The World Journal of Men's Health, 2022
Purpose:Purpose: During epididymal sperm maturation, spermatozoa acquire progressive motility through dynamic protein modifica-tions. However, the relationship between sequential protein modifications during epididymal sperm maturation and sperm motility
Yoo-Jin Park, Byeong-Mu Lee, Won-Ki Pang, Do-Yeal Ryu, Md Saidur Rahman, Myung-Geol Pang   +5 more
doaj   +1 more source

Spatially Organized Human Ovarian Spheroids Instruct Endometrial Morphogenesis

Advanced Science, EarlyView.
A spatially organized human follicle‐like spheroid (SPHEGaT) composed of granulosa cells (GCs) and stromal‐derived theca‐like cells (TLCs) establishes sustained steroidogenesis in vitro. When co‐cultured with human endometrial organoids (EMOs), estradiol (E2) and progesterone (P4) exchange induces secretory/progesterone‐responsive differentiation ...
Maria João Sousa, Silke De Vriendt, Lixian Liu, Thalles Fernando Rocha Ruiz, Hugo Vankelecom, Christiani Andrade Amorim   +5 more
wiley   +1 more source

SARP2 como marcador molecular de morfologia de espermatozóides humanos [PDF]

, 2011
Mestrado em Biologia Aplicada - Biologia Molecular e CelularA fosforilação proteica resulta de um equilíbrio entre fosfatases e quinases constituindo o principal regulador da maioria dos mecanismos existentes nos sistemas biológicos.
Santos, Nadine Castelhano
core   +1 more source

Relationship between sperm progressive motility and DNA integrity in fertile and infertile men

Middle East Fertility Society Journal, 2018
Background: Progressive sperm motility was found to be predictive for in vitro and in vivo fertilization. There has been an increase in the literature of studies investigating whether DNA fragmentation could be associated with other semen parameters ...
Salah Elbashir, Yasmin Magdi, Ayman Rashed, Mohamed Ahmed Ibrahim, Yehia Edris, Ahmed Mostafa Abdelaziz   +5 more
doaj   +1 more source

Pyrazole‐Derived Antibacterial Compounds Effectively Treat Methicillin‐Resistant Staphylococcus Aureus Infections by Inhibiting Aspartate Transcarbamoylase

Advanced Science, EarlyView.
This study unveils a novel antibacterial mechanism against MRSA, in which the compound Py‐27 selectively targets and inhibits aspartate transcarbamoylase (ATCase), a key enzyme in pyrimidine synthesis. This inhibition disrupts DNA replication, induces oxidative damage, leading to potent bactericidal activity.
Xiaorong Yang, Xinyuan Cao, Lixia Dai, Feng Yang, Jing Wang, Yudong Ma, Tong Bu, Zile Gong, Xueyan Liu, Changcai Bai, Xiaolou Miao, Xiaofei Shang   +11 more
wiley   +1 more source

Pyrrhula pyrrhula sperm motility [PDF]

, 2012
Motility measures of individual sperm tracks analysed by Computer Assisted Sperm Ananlysis (CASA). The file lists the sperm tracks from 11 male Eurasian bullfinches (P. pyrrhula) with details of sampling locality and date.
Melissah Rowe (232126), Laskemoen, Terje, Lopes, Ricardo J., Lifjeld, Jan T., Lars Erik Johannessen (3248511), Hoenen, Antje, Rodrigues, Pedro, Rowe, Melissah, Johannessen, Lars Erik, Pedro Rodrigues (806678), Antje Hoenen (3274167), Terje Laskemoen (239486), Ricardo J. Lopes (3258057), Jan T. Lifjeld (239484)   +13 more
core   +1 more source

Molecular approaches based on investigating the therapeutic benefits of Moringa oleifera: Insights into biochemical and spermatological and metabolites studies

Aspects of Molecular Medicine
This study aimed to investigate the potential of Moringa oleifera extract, an herbal treatment known to support male reproductive function, in improving sperm motility. Adult male guinea pigs were divided into four groups (n = 5 per group).
Sudha Sankar, Subramaniam Umavathi, Ekambaram Gayathiri, Palanisamy Prakash   +3 more
doaj   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo, Lidong Yang, Tiantian Xu, Dong Sun   +3 more
wiley   +1 more source

Psychological and physiological adaptations to sperm competition in humans [PDF]

, 2005
Postcopulatory competition between males, in the form of sperm competition, is a widespread phenomenon in many animal species. The extent to which sperm competition has been an important selective pressure during human evolution remains controversial ...
Nicholas Pound, Todd K. Shackelford, Pound, N, Goetz, AT, Aaron T. Goetz, Shackelford, TK   +5 more
core  

Quercetin Protects Goat Sperm Motility by Inhibiting Neutrophil Extracellular Traps and Maintaining Plasma Membrane and Acrosome Integrity

Veterinary Sciences
Enhancing or protecting sperm motility has always been a pivotal approach to improving the ewe pregnancy rate. Sperm motility is highly susceptible to the immune status of the reproductive tract.
Zhengkai Wei, Hongrong Hong, Wei Liu, Kaifeng He, Jiaxuan Wang, Xin Guo, Dezhi Zhang, Qianyong Li, Zhengtao Yang   +8 more
doaj   +1 more source