Spermatozoa Localization
Spermatozoa Localization - Related Videos
09:30
Phosphopeptide Analysis of Rodent Epididymal Spermatozoa
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Cited by 26 •
2014
Proteomic analysis of any cell type is highly dependent on both purity and pre-fractionation of the starting material in order to de-complexify the sample prior to liquid chromatography mass spectrometry (MS). By using back-flushing techniques, pure spermatozoa can be obtained from rodents. Following digestion, phosphopeptides can be enriched using TiO2.
06:41
A Technique for Percutaneous Epididymal Spermatozoa Aspiration and Processing
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2026
Source:Li Xiaoming1, Liu Xiao1, Li Haiyang1, Cai Xiaohua1, Ou Jianping11Center for Reproductive Medicine, The Third Affiliated Hospital of Sun Yat-sen University.This video demonstrates the percutaneous aspiration of epididymal spermatozoa from a patient with azoospermia, a condition characterized by the absence of spermatozoa in the semen. The procedure involves disinfecting the scrotal area, aspirating epididymal fluid using a syringe with a specialized culture solution and processing the...
10:24
Evaluation of Intracellular Location of Reactive Oxygen Species in Solea Senegalensis Spermatozoa
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Cited by 8 •
2018
This protocol describes a detailed methodology for detecting H2O2 localization within Solea senegalensis spermatozoa using a sensitive fluorochrome DCFH-DA for ROS, a live mitochondria stain for mitochondria, and DAPI for nuclei visualization, respectively. The protocol is designed to be performed within 2 h with either fresh or thawed spermatozoa.
11:42
Bottlenose Dolphin (Tursiops truncatus) Spermatozoa: Collection, Cryopreservation, and Heterologous In Vitro Fertilization
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Cited by 8 •
2017
Here, we present protocols that have been successfully used for dolphin spermatozoa collection, cryopreservation, and heterologous IVF performance using bovine oocytes.
08:32
High-Resolution Respirometry to Assess Mitochondrial Function in Human Spermatozoa
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Cited by 1 •
2023
The analysis of sperm mitochondrial function by high-resolution respirometry permits the measurement of the oxygen consumption of freely moving spermatozoa in a closed-chamber system. The technique can be applied to measure respiration in human spermatozoa, which provides information on sperm mitochondrial characteristics and integrity.
FAQs
Motility allows sperm cells to move through the reproductive environment, while chemical guidance cues can influence the direction or distribution of that movement. Their combined effects help determine whether sperm reach the region surrounding the egg. Studying both factors can distinguish impaired movement from disrupted guidance when interpreting changes in fertilization success.
Fluid movement can transport sperm through the reproductive tract, whereas epithelial surfaces and surrounding cells provide physical environments that influence where sperm are retained or redistributed. These factors act alongside motility and chemical signals rather than functioning independently. Examining their contribution helps clarify how reproductive tract organization affects access to the fertilization site.
Species-specific barriers can alter how sperm move through the reproductive tract or interact with the egg and its surroundings. Consequently, a localization pattern observed in one species may not predict fertilization behavior in another. Developmental biology studies these differences to connect gamete recognition and transport with the conditions that permit or limit fertilization.
Imaging can show where sperm cells are positioned and how their distribution changes, while labeling can make the cells easier to identify within the reproductive environment. Molecular assays provide complementary information about associated biological changes. Used together, these approaches can connect localization patterns with guidance, transport, epithelial interactions, and fertilization outcomes.
Researchers can compare sperm distribution under conditions in which guidance or transport is altered with distribution under the corresponding reference condition. Imaging or labeling reveals positional changes, and molecular assays can provide additional evidence about the associated response. The resulting comparison helps assess whether disrupted movement toward the fertilization site affects fertilization success or later embryonic development.
Localization links reproductive tract function and gamete recognition to events that follow successful fertilization. If guidance or transport changes the likelihood of sperm reaching the egg, the resulting difference may be reflected in fertilization success and subsequent embryonic development. This makes localization useful for studying how conditions before fertilization influence early developmental outcomes.