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G5270 Sigma

Gonadotropin from human menopausal urine

Synonym: HMG

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Properties

Related Categories Cell Biology, Cell Signaling and Neuroscience, Chorionic Gonadotropin, Cytokines, Growth Factors and Hormones, Hormones,
potency   ≥75 I.U. FSH per mg
storage temp.   2-8°C
Gene Information   human ... CGA(1081), CGB(1082)

Description

Packaging

1 mg in glass bottle

Application

Gonadotropin from human menopausal urine has been used as a supplement in pre-incubated maturation medium for the culture of bovine cumulus oocyte complexes (COCs) to study the effects of multiple freeze-thawing of bovine epididymal sperm on in vitro development of embryo.

Biochem/physiol Actions

Gonadotropin interacts with members of the GPCR (G-protein coupled receptor family), and upon activation they induce adenylyl cyclase. This hormone is synthesized in male reproductive tract and has high concentration in semen, especially the a subunit. This subunit is linked with spermatogenesis, and lower levels are present in males with aberrant semen quality.

Two chain glycoprotein hormone; stimulates the growth of ovarian follicles and the formation of the corpus luteum. Human chorionic gondadotropin (hCG) may be used as an alternative to PMSG to induce ovulation in laboratory animals. When hCG was injected into laboratory animals via intravenous (i.v.), intraperitoneal (i.p.), or subcutaneous (s.c.) methodstet, the effective dose values for 50% of the animals (ED50) per animal and per body weight (kg) in parenthesis were as follows:
Mice: i.v. 0.2 (7.7) I.U.; i.p. 0.3 (11.5) I.U.; s.c. 0.7 (26.9) I.U.
Syrian hamsters: i.v. 1.0 (9.5) I.U.; i.p. 1.8 (17.1) I.U.; s.c. 2.6 (24.8) I.U.
Rats: i.v. 1.3 (4.6) I.U.; i.p. 3.5 (12.3) I.U.; s.c.7.5 (26.3) I.U.

Using PMSG, the ED50 values per animal and per body weight (kg) in parenthesis were as follows:
Mice: i.v. 0.8 (30.8) I.U.; i.p. 2.0 (76.9) I.U.; s.c. 2.8 (107.7) I.U
Syrian hamsters: i.v., 3.6 (34.3) I.U.; i. p., 8.0 (76.2) I.U.; s.c., 13.2 (125.7) I.U.
Rats: i.v., 6.0 (76.8) I.U.; i p., 20.8 (73.0) I.U.; s.c., 76.8 (269.5) I.U.

General description

Gonadotropin hormone is only found in primates and is a member of the glycoprotein hormone family which also consists of luteinizing hormone (LH), follicle-stimulating hormone (FSH), and thyroid-stimulating hormone (TSH). This hormone is composed of two non-covalently linked α and β subunits. The α-subunits within a species are identical, whereas the β subunits are different, which confers the differences in physiological specificity.

Price and Availability


All labs need water
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles
Peer-Reviewed Papers
15

References

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