What is your diagnosis? Cystic ovarian structure in a dog

2018 ◽  
Vol 47 (4) ◽  
pp. 667-669
Author(s):  
Niki Skeldon ◽  
Melanie Spoor ◽  
Jim Klaassen ◽  
Annalize Ide
Keyword(s):  
Ovarian Structure

Ovarian structure protein 1: A sensitive molecular biomarker of gonadal intersex in female Japanese medaka after androgen exposure

2015 ◽  
Vol 34 (9) ◽  
pp. 2087-2094 ◽  
Author(s):  
Ahmed Abdel-Moneim ◽  
Cecon T. Mahapatra ◽  
Azadeh Hatef ◽  
Maria S. Sepúlveda
Keyword(s):  
Japanese Medaka ◽  
Molecular Biomarker ◽  
Androgen Exposure ◽  
Ovarian Structure

In utero exposure to the oestrogen mimic diethylstilbestrol disrupts gonadal development in a viviparous reptile

2015 ◽  
Vol 27 (7) ◽  
pp. 1106 ◽  
Author(s):  
Laura M. Parsley ◽  
Erik Wapstra ◽  
Susan M. Jones
Keyword(s):  
Endocrine Disrupting Chemicals ◽  
Gonadal Development ◽  
Seminiferous Tubules ◽  
Endocrine Disrupting ◽  
Multiple Routes ◽  
Ovarian Structure ◽  
Advanced Knowledge ◽  
Dose Response Effect ◽  
Ubiquitous Presence ◽  
Reptilian Species

The ubiquitous presence of endocrine-disrupting chemicals (EDCs) in the environment is of major concern. Studies on oviparous reptiles have significantly advanced knowledge in this field; however, 30% of reptilian species are viviparous (live-bearing), a parity mode in which both yolk and a placenta support embryonic development, thus exposure to EDCs may occur via multiple routes. In this first study of endocrine disruption in a viviparous lizard (Niveoscincus metallicus), we aimed to identify effects of the oestrogen mimic diethylstilbestrol (DES) on gonadal development. At the initiation of sexual differentiation, pregnant N. metallicus were treated with a single dose of DES at 100 or 10 µg kg­–1, a vehicle solvent or received no treatment. There was no dose-response effect, but the testes of male neonates born to DES-exposed mothers showed reduced organisation of seminiferous tubules and a lack of germ cells compared with those from control groups. The ovaries of female neonates born to DES-exposed mothers exhibited phenotypic abnormalities of ovarian structure, oocytes and follicles compared with controls. The results indicate that, in viviparous lizards, maternal exposure to oestrogenic EDCs during gestation may have profound consequences for offspring reproductive fitness.

Adaptation of a trap door technique for the recovery of ovarian cortical biopsies from Cebus apella (capuchin monkey)

Zygote ◽  
2012 ◽  
Vol 21 (2) ◽  
pp. 158-161 ◽  
Author(s):  
Luana N. Santana ◽  
Adriel B. Brito ◽  
Danielle C. Brito ◽  
Julianne S. Lima ◽  
Sheyla F.S. Domingues ◽  
...  
Keyword(s):  
Ovarian Tissue ◽  
Capuchin Monkeys ◽  
Safe Procedure ◽  
New World Primates ◽  
Primordial Follicles ◽  
Trap Door ◽  
Ovarian Structure ◽  
Biopsy Method ◽  
Follicular Density

SummaryThere is a paucity of efficient cryopreservation protocols for primordial follicles enclosed in the ovarian tissue from non-human primates (NHP), in special New World primates. Our objective was to establish an optimal procedure for the recovery of ovarian biopsies from capuchin monkeys. To this end, we adapted a trap door biopsy method. Follicular density and quality of the biopsies were evaluated and ultrasound analysis was performed before and continuously after surgery to assess ovarian structure. Ovarian tissue biopsies recovered by the trap door technique allowed the successful harvesting of primordial follicles from capuchin monkeys, and no complication was recorded. The female cycle was not affected by surgery and no adherence was found thereafter. In conclusion, the adaptation of a trap door biopsy method is a safe procedure and allows recovery of healthy primordial follicles.

CHANGES IN OVARIAN STRUCTURE FOLLOWING THE INJECTION OF CARBOLIC ACID INTO THE OVARIAN BURSA

1951 ◽  
Vol 7 (3) ◽  
pp. 227-NP ◽  
Author(s):  
ANITA M. MANDL ◽  
S. ZUCKERMAN
Keyword(s):  
Adult Female ◽  
Female Rats ◽  
Germinal Epithelium ◽  
Ovarian Structure ◽  
Carbolic Acid

Carbolic acid injected directly into the ovarian bursa of twenty-one adult female rats greatly reduced the total number of oocytes in the ovaries. The germinal epithelium was usually hyperplastic, although mitoses were not seen. The problem of post-pubertal oogenesis is discussed in the light of the present findings.

Sign in / Sign up

Export Citation Format

Share Document