Induction of ovarian activity in female ring doves by androgen treatment of castrated males.

1970 ◽  
Vol 71 (2, Pt.1) ◽  
pp. 210-215 ◽  
Author(s):  
Carl J. Erickson
Keyword(s):  
Ovarian Activity ◽  
Androgen Treatment ◽  
Ring Doves

PHYSIOLOGICAL EFFECTS OF THE PINEAL GLAND IN ANDROGEN-STERILIZED FEMALE RATS

1970 ◽  
Vol 63 (4) ◽  
pp. 667-678 ◽  
Author(s):  
Russel J. Reiter
Keyword(s):  
Pineal Gland ◽  
Reproductive Organs ◽  
Female Rats ◽  
Inhibitory Influence ◽  
Light Deprivation ◽  
Vaginal Smears ◽  
Adult Rats ◽  
Androgen Treatment ◽  
Postnatal Treatment ◽  
Cervical Ganglia

ABSTRACT The influence of early androgen treatment, light deprivation (by blinding), pinealectomy and superior cervical ganglionectomy on the reproductive system of female rats was tested. Early postnatal treatment of rats with testosterone propionate caused adult rats to exhibit the characteristic signs of androgen sterilization; these included polyfollicular ovaries, normal-sized uteri and persistent vaginal cornification. If early androgentreated rats also were blinded the ovaries were smaller in size and contained fewer follicles, the uteri were greatly reduced in size and the incidence of vaginal oestrus was decreased by approximately 50% If in addition to blinding, androgen-sterilized animals were subjected to either removal of the pineal gland or superior cervical ganglia, the reproductive organs and the vaginal smears were indistinguishable from those of testosterone-treated rats with eyes. These data indicate that the inhibitory influence of blinding on the pituitary-ovarian axis was mediated through the sympathetic nervous system and the pineal gland. The restraining influence of light deprivation on the growth of the reproductive organs was not permanent as illustrated by the fact that if these animals were kept to 120 days of age the ovaries and uteri grew to the same level as those of pinealectomized control rats.

Ovarian Activity in Prepuberal Dairy Calves

1962 ◽  
Vol 21 (1) ◽  
pp. 82-90 ◽  
Author(s):  
G. R. Howe ◽  
D. L. Black ◽  
R. C. Foley ◽  
W. G. Black
Keyword(s):  
Dairy Calves ◽  
Ovarian Activity

Premature ovarian ageing following heterozygous loss of Senataxin

2020 ◽  
Author(s):  
G N Subramanian ◽  
M Lavin ◽  
H A Homer
Keyword(s):  
Dna Damage ◽  
Neurodegenerative Disorder ◽  
Dna Helicase ◽  
Dna Integrity ◽  
Ovarian Activity ◽  
Homozygous Mutation ◽  
Female Mice ◽  
Mating Trial ◽  
High Prevalence

Abstract Premature loss of ovarian activity before 40 years of age is known as primary ovarian insufficiency (POI) and occurs in ∼1% of women. A more subtle decline in ovarian activity, known as premature ovarian ageing (POA), occurs in ∼10% of women. Despite the high prevalence of POA, very little is known regarding its genetic causation. Senataxin (SETX) is an RNA/DNA helicase involved in repair of oxidative stress-induced DNA damage. Homozygous mutation of SETX leads to the neurodegenerative disorder, ataxia oculomotor apraxia type 2 (AOA2). There have been reports of POI in AOA2 females suggesting a link between SETX and ovarian ageing. Here, we studied female mice lacking either one (Setx+/−) or both (Setx−/−) copies of SETX over a 12- to 14-month period. We find that DNA damage is increased in oocytes from 8-month-old Setx+/− and Setx−/− females compared with Setx+/+ oocytes leading to a marked reduction in all classes of ovarian follicles at least 4 months earlier than typically occurs in female mice. Furthermore, during a 12-month long mating trial, Setx+/− and Setx−/− females produced significantly fewer pups than Setx+/+ females from 7 months of age onwards. These data show that SETX is critical for preventing POA in mice, likely by preserving DNA integrity in oocytes. Intriguingly, heterozygous Setx loss causes an equally severe impact on ovarian ageing as homozygous Setx loss. Because heterozygous SETX disruption is less likely to produce systemic effects, SETX compromise could underpin some cases of insidious POA.

Ovarian activity in crossbred Thai native does during naturally occurring foot-and-mouth disease (FMD) virus infection

2021 ◽  
Vol 53 (2) ◽  
Author(s):  
Phubet Satsook ◽  
Sukanya Rattanatabtimtong ◽  
Lak Piasai ◽  
Patcharapa Towiboon ◽  
Chalermchart Somgird ◽  
...  
Keyword(s):  
Virus Infection ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Ovarian Activity ◽  
Fmd Virus ◽  
Naturally Occurring ◽  
Foot And Mouth

THE CONTROL OF OVARIAN ACTIVITY

1949 ◽  
Vol 4 (2) ◽  
pp. 248-249
Author(s):  
H. H. COLE
Keyword(s):  
Ovarian Activity

scholarly journals Intraruminal soluble glass boluses containing melatonin can induce early onset of ovarian activity in ewes

Reproduction ◽  
1987 ◽  
Vol 80 (1) ◽  
pp. 235-239 ◽  
Author(s):  
A. L. Poulton ◽  
A. M. Symons ◽  
M. I. Kelly ◽  
J. Arendt
Keyword(s):  
Early Onset ◽  
Ovarian Activity ◽  
Soluble Glass
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