Spermiogenesis Health Dictionary

Spermiogenesis: From 1 Different Sources


n. the process by which spermatids become mature spermatozoa within the seminiferous tubules of the testis. See spermatogenesis.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Vitex Negundo

Linn.

Family: Verbenaceae.

Habitat: Throughout India in the warmer zones; ascending to 900 m in the North-western Himalaya.

English: Five-leaved Chaste tree.

Ayurvedic: Nirgundi, Shephaa- likaa, Sindhuka, Sindhuvaara, Suvahaa, Sugandhikaa. Nila, Nila- nirgundi, Shveta nirgundi (var.). White-flowered var. is known as Sinduvaara, blue-flowered as Nirgundi or Shephaali,

Unani: Sambhaalu, Fanjankisht.

Siddha/Tamil: Nochi, Nalla Nochi, Vellai Nochchi, Nirkundi.

Action: Seeds—prescribed in spermatorrhoea, and for promoting spermiogenesis (in Unani medicine). Also given as a rejuvenating tonic for retarding old age and for retaining and promoting virility. (in Ayurvedic medicine). Leaf—anti-inflammatory, analgesic; removes foetid discharges and worms from ulcers. Flowers—astringent, febrifuge, antidiarrhoeic; prescribed in liver complaint. Oil— applied to sinus, scrofulous sores.

The Ayurvedic Pharmacopoeia of India recommends the leaf (also the root) in excessive vaginal discharges, oedema, skin diseases, pruritus, helmin- thiasis, rheumatism, and puerperal fever.

A water extract of the leaves, when administered to rats, exhibited anti- inflammatory, analgesic, antihistami- nic and membrane stabilizing and an- tioxidant activities. (J. Ethnopharmo- col, 2003, (203), 199-206.) Methano- lic extract of leaves showed remarkable antihistaminic activity.

The leaves contain iridoid glyco- sides, isomeric flavanones and flavo- noids, besides casticin and the gluco- sides, luteolin-7-glucoside and alpha- D-glucoside of a tetrahydroxy mono- methoxy flavone.

Dried powder of roots contains hen- triacontane, beta-sitosterol and its aetat and stigmasterol. Alcoholic extract of the root showed 40-60% antiimplantation activity with no anti- ovulatory effect in rats.

Flavone vitexicarpin (1), isolated from the leaves, exhibited broad cyto- toxicity in human cancer cell line panel. Two pentacyclic triterpenoids, betulin- ic acid and ursolic acid, along with an aliphatic alcohol, n-hentriacontanol, beta-sitosterol and p-hydroxybenzoic acid have been isolated from leaves.

The seeds contain p-hydroxybenz- oic acid, 5-oxyisophthalic acid, glucose and the triterpene, vitextriter- pene. Several anti-inflammatory triter- penoids and flavonoids have also been isolated from the seeds. The flavanone, 5,7,3' trihydroxy-6, 8,4'-trimethoxy- flavone exhibited anti-androgenic activity in adult mice and dogs.

Dosage: Leaf—10-15 ml juice (API, Vol. III); root—10-12 ml juice (API, Vol. IV.)... vitex negundo

Spermatid

n. a small cell produced as an intermediate stage in the formation of spermatozoa. Spermatids become embedded in *Sertoli cells in the testis. They are transformed into spermatozoa by the process of spermiogenesis (see spermatogenesis).... spermatid

Spermatogenesis

n. the process by which mature spermatozoa are produced in the testis (see illustration). *Spermatogonia, in the outermost layer of the seminiferous tubules, multiply throughout reproductive life. Some of them divide by meiosis into *spermatocytes, which produce haploid *spermatids. These are transformed into mature spermatozoa by the process of spermiogenesis. The whole process takes 70–80 days.... spermatogenesis



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