Semen - Normal Samples - 4. Ages 50+ Years Old
| Product Name | Normal Semen Samples - Donor 50+ Years Old |
| Source | Single Human Donor |
| Catalogue Number | 991-04-AS4 |
| Form | Liquid |
| Sample Size | 1 donor x > 1 mL Note: Each sample would be from a unique donor. |
| Donor Gender | Male |
| Donor Age | Reported |
| Donor Race | Reported |
| Donor Medical History | Available by request |
| Preservatives | None |
| Special Collections | Available on request |
| Additional Info | This product does not contain cryopreservatives. As a result, it may not contain viable spermatozoa. |
| Storage | -20°C |
| Recertification | Due to differing stabilities of various biomarkers in this complex biological material it is not possible to assign a single expiration date that is relevant to all biomarkers. The end user should monitor the biomarkers of interest to verify suitability over time. |
| Infectious Disease Testing | Not tested for infectious diseases. This material should be handled at the Biosafety Level 2 (BSL 2) as recommended for any potentially infectious human serum or blood specimen in the CDC/NIH manual "Biosafety in Microbiological and Biomedical Laboratories", 2009. |
| Synonyms | Seminal fluid, sperm, spermatozoa, ejaculate, seed, germ, jism |
Lee Biosolutions is the leading collector and distributor of human biological fluids and tissues for protein isolation, diagnostic manufacturing and medical research. Our laboratory is equipped to handle specific requests for isolation of cells, proteins, pooling requirements or specific aliquots of biological specimens.
Custom preparations, technical support, bulk quantities and aliquoting available.
Lee Biosolutions follows all HIPAA guidelines for our donors. 45 CFR Parts 160,162,164.
During the process of ejaculation, sperm passes through the ejaculatory ducts and mixes with fluids from the seminal vesicles, the prostate, and the bulbourethral glands to form the semen. The seminal vesicles produce a yellowish viscous fluid rich in fructose and other substances that makes up about 70% of human semen. The prostatic secretion, influenced by dihydrotestosterone, is a whitish (sometimes clear), thin fluid containing proteolytic enzymes, citric acid, acid phosphatase and lipids. The bulbourethral glands secrete a clear secretion into the lumen of the urethra to lubricate it.
Sertoli cells, which nurture and support developing spermatocytes, secrete a fluid into seminiferous tubules that helps transport sperm to the genital ducts. The ductuli efferentes possess cuboidal cells with microvilli and lysosomal granules that modify the semen by reabsorbing some fluid. Once the semen enters the ductus epididymis the principle cells, which contain pinocytotic vessels indicating fluid reabsorption, secrete glycerophosphocholine which most likely inhibits premature capacitation. The accessory genital ducts, the seminal vesicle, prostate glands, and the bulbourethral glands, produce most of the seminal fluid.
Lee Biosolutions, Inc
