Results 161 to 170 of about 1,598 (200)
Some of the next articles are maybe not open access.
Nephroblastoma in an Ovotestis of a True Hermaphrodite: A Case Report
Journal of Urology, 1987We describe a patient who presented with a painful mass in the left inguinoscrotal region, gynecomastia, perineal hypospadias with chordee and a bifid scrotum with a small gonad in the right hemiscrotum. At operation the left mass was found to be an ovotestis with hemorrhage in a corpus luteum cyst. A rudimentary uterus and fallopian tube were situated
C F, Heyns +4 more
openaire +2 more sources
Egg-laying hormone: Direct action on the ovotestis of Aplysia
General and Comparative Endocrinology, 1983The bag cells are a group of neuroendocrine cells located in the abdominal ganglion of Aplysia californica. These cells induce egg laying in the animal through the release of neurohormone(s). Previous experiments established that an extract of bag cells releases eggs from isolated ovotestis fragments in a dose-dependent manner. (F. E. Dudek and S.
B S, Rothman, G, Weir, F E, Dudek
openaire +2 more sources
Ovotestis Disorders of Sexual Development
2020This is a rare condition in which the histology of a gonad contains both ovarian and testicular tissues.
openaire +1 more source
A novel actin isoform is expressed in the ovotestis of Aplysia californica
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2005The actin family encodes a large number of protein isoforms with quasi-identical primary structure but distinct function and localization. In oocytes, actin is known to play important roles in different processes such as those leading to fertilization or to mRNA localization during oogenesis.
Jacques P, Zappulla +4 more
openaire +2 more sources
[True hermaphroditism with bilateral ovotestis].
Ginecologia y obstetricia de Mexico, 1998A nineteen years old woman with ambiguous external genitalia was studied. This condition had been previously identified as a newborn, but her parents refused medical attention and it was reared as a girl. At 12-years, she began spontaneous mammary development, appearing pubic and axillary hair, and clitoral enlargement.
A, Güitrón +5 more
openaire +1 more source
Female gonad of moles, genusTalpa (Insectivora, Mammalia): Ovary or ovotestis?
Journal of Experimental Zoology, 2000The female gonads of moles (genus Talpa) are composed of a cortex, functioning as an ovary, and a medulla, which is structurally similar to that of the testis. In the female reproductive apparatus there are masculine glandular annexes, such as a bilobate prostate, two Cowper glands, and a penis-like clitoris. All these features have recently led to the
F. Beolchini +3 more
openaire +3 more sources
Germinal and non-germinal lines in the ovotestis of Helix aspersa: a survey
Roux's Archives of Developmental Biology, 1987The study of gonadal organogenesis and differentiation by means of light and electron microscopy suggested the following in Helix aspersa: (1) the distal parts of the acini have components of mesodermal origin, whereas the neck and efferent duct comprise ectodermal elements; (2) a segregation of a germinal line occurs early, during the embryonic life; (
Bernadette, Griffond, Jacqueline, Bride
openaire +2 more sources
Ultrastructure of an ovotestis in a case of true hermaphroditism.
Obstetrics and gynecology, 1976A case of true hermaphroditism with bilateral ovotestes is reported. The karyotype was 46, XX. At laparotomy done at the age of 21 months a uterus, bilateral fallopian tubes, and bilateral gonads were observed. On frozen section examination, each gonad was shown to be an ovotestis.
L M, Roth, R E, Cleary, W L, Hokum
openaire +1 more source
Observations on cells of the ovotestis of a pulmonate snail
1960The numerous cytological problems in spermatogenesis and yolk formation have been studied intensively by light microscopists, but it is only recently that electron microscopy has been utilized in an effort to understand the profound nuclear and cytoplasmic changes which take place. The cells of the ovotestis of pulmonate snails offer excellent material
openaire +1 more source
Report of an ovotestis with carcinoma of the cervix.
Journal of the Medical Association of Thailand = Chotmaihet thangphaet, 1994A case of true hermaphrodite with left unilated ovotestis was reported in a 37-year-old Thai male. Bilateral gynaecomastia, under and maldevelopment of external genitalia were present with infertility. Chromosome study was not available. Pathological examination of resected specimens showed evidence of ovarian and testicular tissue. Stratified squamous
openaire +1 more source