Semen retention is the practice of withdrawing from ejaculation for days, weeks, or months at a time. This can be done by abstaining from sexual activity or masturbating, or ceasing activity prior to reaching the point of ejaculation. So where did men get the idea that semen retention could...
it may be that effects of repeated exposure to the same stimulus affects ejaculate composition differently in species with pregnancy and short durations of sperm retention (e.g., many mammals; Holt and Lloyd2010) than in species that lay eggs and have long-term sperm storage (e.g., many ar...
A lack of zinc, coming about because of the deficient admission or retention of zinc, is checked by balding, skin sores and squandering of body tissues. Zinc is critical for the generation of sperm and for keeping up the quality and motility of sperm. Without enough zinc, the nature of ...
Further analysis of the compounds present in this small precipitate by RP-HPLC showed that fractions eluting at retention times similar to synthetic PAP fragments contained primarily a peptide of 4553 Da, corresponding to PAP248-286 (Figure 6F). These results clearly support that endogenous PAP248-...
By comparing retention times, high-resolution mass data for SZS, blank, and rat plasma, 33 constituents in the SZS decoction and 13 in vivo compounds in rat plasma were identified. For prototype compounds, four were identified unambiguously by comparison with the references, SPI, swertisin (SWE...
Our findings correlate with the findings of the above mentioned authors regarding selenium retention since the percentage of live morphologically normal spermatozoa significantly increased on the 60th and 90th day of the study. A lower number of spermatozoa did not react upon exposure to the hypo-...
The identification of the peaks was based on the UV spectrum and retention time of each marker component from the HSFE extract. 2.12. Preparation of the Main Components of HSFE for Cell Application To confirm the anti-inflammatory activity of the main components of HSFE identified by HPLC ...
or the sodiated adduct. At least two ions were required for a single molecular feature. For binning and alignment, a tolerance of 0.3 min and 20 ppm was set for the retention time window and mass window, respectively. The post-processing filters applied included the requirement for the molec...
Zheng, Y.L.; Dai, W.Z.; Hu, X.L.; Hong, Z.P. Effects of dietary glycine selenium nanoparticles on loin quality, tissue selenium retention, and serum antioxidation in finishing pigs.Anim. Feed Sci. Technol.2020,260, 114345. [Google Scholar] [CrossRef] ...
These authors identified discriminatory metabolites by applying different mathematical algorithms, such as correlation-optimized wrapping (to align the scan numbers of different samples in each section separately, minimizing the effect of retention time drift), evolving factor analysis and multivariate curve ...