Results 31 to 40 of about 1,103 (168)

Adaptation of a Bioinformatics Microarray Analysis Workflow for a Toxicogenomic Study in Rainbow Trout. [PDF]

open access: yesPLoS ONE, 2015
Sex steroids play a key role in triggering sex differentiation in fish, the use of exogenous hormone treatment leading to partial or complete sex reversal.
Sophie Depiereux   +6 more
doaj   +1 more source

A Rare Case of Malignant Ovarian Germ Cell Tumor: Dysgerminoma and Seminoma in the Same Patient

open access: yesReports, 2023
Ovarian malignant germ cell tumors (OMGCTs) represent a rare type of malignant tumors composed of primitive germ cells that often originate from dysgenetic gonads and are frequently associated with hermaphroditism.
Melinda-Ildiko Mitranovici   +14 more
doaj   +1 more source

Gonadal Transcriptome Analysis of Sex-Related Genes in the Protandrous Yellowfin Seabream (Acanthopagrus latus)

open access: yesFrontiers in Genetics, 2020
Yellowfin seabream (Acanthopagrus latus), a protandrous hermaphroditic fish, is a good model for studying the mechanism of sex reversal. However, limited knowledge is known about the genetic information related to reproduction and sex differentiation in ...
Shizhu Li   +8 more
doaj   +1 more source

A case of labioscrotal ovotestis in Madagascar with review of the literature [PDF]

open access: yesObstetrics & Gynecology International Journal, 2020
Among the disorder sexual development which regroups several pathological entities, true hermaphroditism or Ovotestis disorder remains a rare variety. We report a case of true hermaphroditism, diagnosed at the age of 15 years. Despite the presence of sexual ambiguity at birth, the female gender has been declared.
Ranaivoson Haingo Voahangy Rabetafika   +4 more
openaire   +1 more source

Eurytrema coelomaticum: influence of the infection on the reproduction and nucleic acids contents in the albumen gland and ovotestis of Bradybaena similaris

open access: yesMemorias do Instituto Oswaldo Cruz, 1995
The number of eggs laid per snail in Bradybaena similaris and the nucleic acids (DNA and RNA) in the albumen gland and ovotestis were quantified in snails infected with sporocysts of the digenetic trematode Eurytrema coelomaticum.
Jairo Pinheiro, Suzana B. Amato
doaj   +1 more source

Neuroendocrine carcinoma of the ovotestis: A case report and review of literatures [PDF]

open access: yesInternational Journal of Reproductive BioMedicine, 2016
Neuroendocine carcinoma of the gynecologic tract is rare and poses a significant clinical challenge because of tumor heterogeneity and lack of standardized guidelines for treatment. Ovotestis refers to the histology of a gonad that contains both ovarian follicles and testicular tubular elements.
Tahereh, Ashrafganjoei   +2 more
openaire   +2 more sources

The annual reproductive cycle of the snail Megalobulimus abbreviatus (Bequaert, 1948) (Gastropoda, Pulmonata)

open access: yesBrazilian Journal of Biology
Morphological changes in the sexual organs of the pulmonates were observed throughout a year and correlated with reproductive-cycle periods. Reproductive-organ weights of the snail Megalobulimus abbreviatus were recorded seasonally and gonad sections ...
A. C. M. Horn, A. Achaval, D. M. Zancan
doaj   +1 more source

Sensory innervation of the ovotestis in the snailHelix aspersa [PDF]

open access: yesJournal of Experimental Biology, 2003
SUMMARYBecause oviposition in the land snail Helix aspersa is a metabolically expensive process coupled to a high fixed cost, one expects oviposition to occur only when the clutch size surpasses a minimum value at which the reproductive benefit exceeds the cost. We propose that neural innervation of the gonad allows H.
Tomasz, Antkowiak, Ronald, Chase
openaire   +2 more sources

Male production in green sea turtles under a feminizing climate: A validated model of sex ratios with temperature‐dependent sex determination

open access: yesJournal of Animal Ecology, EarlyView.
This study introduces validated methods to predict sex ratios in wild Green sea turtle (Chelonia mydas) nests. It quantifies beach‐scale temperature heterogeneity, incorporates clutch‐level variation in thermal sensitivity and models temperature effects across the thermosensitive period, demonstrating how temporal temperature dynamics and spatial ...
Marc Girondot   +3 more
wiley   +1 more source

Management of a 3-year-old child with ambiguous genitalia

open access: yesUrology Annals, 2015
True hermaphrodites have characteristics tissue both sex in the form of presence of vagina uterus, fallopian tubes and ovaries as in female and presence of testis seminiferous tubules but penis as in penoscrotal hypospadias and bifid scrotal sac confuses
Amarendra Kumar   +2 more
doaj   +1 more source

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