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  • dynein
  • These findings suggest that sperm can not move physically by the attachment of SPMI to cell membrane or second messenger from the sperm cell membrane attached with SPMI inhibits the activity of dynein ATPase. (nii.ac.jp)
  • A high molecular mass dynein ATPase polypeptide and a 18-20 kDa dynein light chain of Ciona sperm flagella are phosphorylated during in vivo activation of motility or in vitro activation of motility by incubation with cyclic AMP. (biologists.org)
  • Therefore, phosphorylation of these dynein polypeptides is not sufficient for activation of motility. (biologists.org)
  • Antioxidants
  • Antioxidants are typically considered good for sperm motility, which is why incorporating certain vitamins into the diet is usually helpful. (wisegeek.com)
  • We recommend FertilAid to all trying-to-conceive men to help ensure that the "raw materials" for healthy sperm production are available to the body, and specific antioxidants are present to help prevent oxidative stress. (fairhavenhealth.com)
  • Get plenty of antioxidants that rid your body of toxins that can cause harm to sperm production. (freedirectorysubmit.com)
  • velocity
  • The velocity of a sperm in fluid medium is usually 1-4 mm/min. (wikipedia.org)
  • We combine laser tweezers with custom computer tracking software and robotics to analyze the motility [swimming speed, VCL (curvilinear velocity), and swimming force in terms of escape laser power (Pesc)] and energetics [mitochondrial membrane potential (MP)] of individual sperm. (spiedigitallibrary.org)
  • Computer-assisted sperm analysis was used to quantify the proportion of sperm that were motile and the swimming velocity of those sperm. (hindawi.com)
  • 12 ] reported declines in trout sperm motility and swimming velocity when adult males were exposed to environmentally relevant levels of the endocrine disruptor bisphenol A. Similarly, Montgomery et al. (hindawi.com)
  • 13 ] found that long-term exposure to the synthetic estrogen 17 -ethinylestradiol reduced sperm swimming velocity in the fighting fish, Betta splendens , most likely through a depletion of ATP reserves. (hindawi.com)
  • These data raise the possibility that the presence of high doses of indoles in reproductive fluids may increase sperm motility and velocity. (medicaljournal-ias.org)
  • Mechanisms
  • The mechanisms for such disruptions are largely unknown but may include damage to the sperm plasma membrane or axoneme, or consumption of adenosine triphosphate (ATP) [ 10 ]. (hindawi.com)
  • males
  • Finally, some males can naturally increase sperm motility by exercising and keeping at a healthy weight, which should in turn allow them to maintain a good balance of hormones. (wisegeek.com)
  • These are proteins that are often found in sperm tissue, and males who have low amounts often have motility issues. (wisegeek.com)
  • However, the captive polatzeki males seem to have reduced sperm motility as compared with captive teydea males, which could be an effect of reduced genetic diversity. (springer.com)
  • essential for sperm
  • It will keep your system hydrated and flushed which is essential for sperm production. (freedirectorysubmit.com)
  • The majority of evidence supports the view that at levels exceeding physiologic concentrations (generally considered to be less than one micromolar [ 6 ]), disruption of sperm function occurs, but that at low levels, NO is essential for sperm function. (springer.com)
  • antioxidant
  • For example, vitamin E is an antioxidant that has been shown to increase the ability for sperm to penetrate the egg. (wisegeek.com)
  • Another antioxidant that may help is vitamin C, which is known for decreasing the chances of the sperm clumping together when released. (wisegeek.com)
  • evaluation
  • This study compared the efficacy of different extenders on the sperm motility of Kolbroek semen during short term storage at 4 °C and 25 °C. Semen was collected from Kolbroek boars using the gloved hand technique and transported to the laboratory for evaluation. (scielo.org.za)