Vaccine
Pharmaceutical compound
Androvax, also known as androstenedione:human serum albumin conjugate, is an immunogen and vaccine against androstenedione that is used in veterinary medicine to increase the ovulation rate and number of lambs born to ewes.[1][2][3] It is a conjugate of androstenedione and human serum albumin.[1][3] The drug is marketed in New Zealand.[1][3]
Androvax produces immunity against androstenedione, and the generation of antibodies against androstenedione decreases circulating levels of androstenedione.[1] In addition, since androstenedione is the major precursor of estrogens, estrogen levels are decreased as well.[1] This is thought to result in reduced negative feedback on the hypothalamic-pituitary-gonadal axis and increased gonadotropin secretion, which in turn improves fertility and fecundity.[1]
See also
References
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Androgens
(incl. AASTooltip anabolic–androgenic steroid) | |
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| Antiandrogens | | ARTooltip Androgen receptor antagonists | |
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Steroidogenesis
inhibitors | |
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| Antigonadotropins |
- D2 receptor antagonists (prolactin releasers) (e.g., domperidone, metoclopramide, risperidone, haloperidol, chlorpromazine, sulpiride)
- Estrogens (e.g., bifluranol, diethylstilbestrol, estradiol, estradiol esters, ethinylestradiol, ethinylestradiol sulfonate, paroxypropione)
- GnRH agonists (e.g., leuprorelin)
- GnRH antagonists (e.g., cetrorelix)
- Progestogens (incl., chlormadinone acetate, cyproterone acetate, hydroxyprogesterone caproate, gestonorone caproate, medroxyprogesterone acetate, megestrol acetate)
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| Others | |
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| Estrogens | | ERTooltip Estrogen receptor agonists |
- Steroidal: Alfatradiol
- Certain androgens/anabolic steroids (e.g., testosterone, testosterone esters, methyltestosterone, metandienone, nandrolone esters) (via estrogenic metabolites)
- Certain progestins (e.g., norethisterone, noretynodrel, etynodiol diacetate, tibolone)
- Clomestrone
- Cloxestradiol acetate
- Conjugated estriol
- Conjugated estrogens
- Epiestriol
- Epimestrol
- Esterified estrogens
- Estetrol†
- Estradiol
- Estradiol esters (e.g., estradiol acetate, estradiol benzoate, estradiol cypionate, estradiol enanthate, estradiol undecylate, estradiol valerate, polyestradiol phosphate, estradiol ester mixtures (Climacteron))
- Estramustine phosphate
- Estriol
- Estriol esters (e.g., estriol succinate, polyestriol phosphate)
- Estrogenic substances
- Estrone
- Estrone esters
- Ethinylestradiol#
- Hydroxyestrone diacetate
- Mestranol
- Methylestradiol
- Moxestrol
- Nilestriol
- Prasterone (dehydroepiandrosterone; DHEA)
- Promestriene
- Quinestradol
- Quinestrol
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| Progonadotropins | |
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| Antiestrogens | ERTooltip Estrogen receptor antagonists
(incl. SERMsTooltip selective estrogen receptor modulators/SERDsTooltip selective estrogen receptor downregulators) | |
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| Aromatase inhibitors | |
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| Antigonadotropins |
- Androgens/anabolic steroids (e.g., testosterone, testosterone esters, nandrolone esters, oxandrolone, fluoxymesterone)
- D2 receptor antagonists (prolactin releasers) (e.g., domperidone, metoclopramide, risperidone, haloperidol, chlorpromazine, sulpiride)
- GnRH agonists (e.g., leuprorelin, goserelin)
- GnRH antagonists (e.g., cetrorelix, elagolix)
- Progestogens (e.g., chlormadinone acetate, cyproterone acetate, gestonorone caproate, hydroxyprogesterone caproate, medroxyprogesterone acetate, megestrol acetate)
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| Vaccines | |
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