Effects of antibodies against tubulin on the movement of reactivated sea urchin sperm flagella [PDF]
, 1980 Antibodies binding to sea urchin flagellar outer-doublet tubulin have been isolated from rabbit sera by tubulin-affinity chromatography employing electrophoretically purified tubulin as the immobilized substrate.
Asai, David J., Brokaw, Charles J.
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The Effect of Oxidative Stress and Dietary Vitamin E Supplementation on Fresh Sperm Quality of Ross 308 Broiler Breeder Roosters [PDF]
پژوهشهای علوم دامی ایران, 2023 Introduction[1]: Oxidative stress is an imbalance between oxidants and antioxidants at the cellular level which leads to the condition of infertility in male.
Zabihollah Nemati +4 more
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Calcium-induced asymmetrical beating of triton-demembranated sea urchin sperm flagella [PDF]
, 1979 Asymmetrical bending waves can be obtained by reactivating demembranated sea urchin spermatozoa at high Ca2+ concentrations. Moving-film flash photography shows that asymmetrical flagellar bending waves are associated with premature termination of the ...
Brokaw, C. J.
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Comparative Transcriptomics of Arabidopsis Sperm Cells [PDF]
Plant Physiology, 2008 AbstractIn flowering plants, the two sperm cells are embedded within the cytoplasm of the growing pollen tube and as such are passively transported to the embryo sac, wherein double fertilization occurs upon their release. Understanding the mechanisms and conditions by which male gametes mature and take part in fertilization are crucial goals in the ...
de Sousa Borges, Filipe +6 more
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Acta Medica Bulgarica, 2023 Abstract A major factor affecting male fertility is excessive death of germ cells, both immature germ cells and mature spermatozoa. It can be due to various factors causing testicular and/or post-testicular damage, such as infections, obstructive conditions, toxins, oxidative stress, hormonal imbalance, hyperthermia, and anti-sperm ...
Kavaldzhieva K. K. +4 more
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HeliyonBackground: Recently, male fertility preservation before cancer treatment has become more prevalent. The research in this field has progressed over time, with some studies having a major impact and providing guidance for further research.
Chuan Huang +7 more
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Modulation of the asymmetry of sea urchin sperm flagellar bending by calmodulin [PDF]
, 1985 Sea urchin spermatozoa demembranated with Triton X-100 in the presence of EGTA, termed potentially asymmetric, generate asymmetric bending waves in reactivation solutions containing EGTA. After they are converted to the potentially symmetric condition by
Brokaw, C. J., Nagayama, S. M.
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Clinically relevant enhancement of human sperm motility using compounds with reported phosphodiesterase inhibitor activity [PDF]
, 2014 STUDY QUESTION: Can we identify compound(s) with reported phosphodiesterase inhibitor (PDEI) activity that could be added to human spermatozoa in vitro to enhance their motility without compromising other sperm functions?
Alasmari +54 more
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Putative
BMC Research Notes, 2011 Background The male germ line in flowering plants is initiated within developing pollen grains via asymmetric division. The smaller cell then becomes totally encased within a much larger vegetative cell, forming a unique "cell within a cell structure ...
Singh Mohan B +3 more
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Not all sperm are equal: functional mitochondria characterize a subpopulation of human sperm with better fertilization potential. [PDF]
PLoS ONE, 2011 Human sperm samples are very heterogeneous and include a low amount of truly functional gametes. Distinct strategies have been developed to characterize and isolate this specific subpopulation.
Ana Paula Sousa +9 more
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