Dinoflagellates are key species in marine environments, but they remain poorly understood in part because of their large, complex genomes, unique molecular biology, and unresolved in-group relationships. We created a taxonomically representative dataset of dinoflagellate transcriptomes and used this to infer a strongly supported phylogeny to map major morphological and molecular transitions in ...

BACKGROUND The effects of seminal plasma on the presence of the cytokines transforming growth factor (TGF)-β1, interleukin (IL)-10 and IL-6 in ovarian follicles and follicular fluid were studied shortly after insemination in gilts.Ovaries from gilts were sampled 5-6 h after insemination with either seminal plasma (SP), fresh semen in extender (Beltsville thawing solution, BTS), spermatozoa in e...

OBJECTIVE This study aims to analyze the clinical characteristics and diagnostic features of ovarian fibromas and to evaluate the efficacy and safety of laparoscopic surgery for ovarian fibromas. METHODS We reviewed the records of 47 consecutive women who underwent laparoscopic or laparotomic surgeries and whose final histopathological diagnoses were ovarian fibroma, cellular fibroma, or fibr...

STAT (signal transducer and activator of transcription) proteins have been shown to be essential transcription factors which mediate biological effects of cytokines. Although most of the STATs have been shown to be widely expressed, Stat4 mRNA has been detected in only a few tissues, including the testis. In the present study, immunoblot analysis confirmed that the presence of Stat4 protein was...

Recebido em 22 de julho de 2004 Aceito em 5 de setembro de 2005 *Corresponding author (autor para correspondência) E-mail: [email protected] Reports of tumors of the reproductive tract in female non-human primates are not frequent. In the literature some cases were observed in females, and they included a cervical leiomyoma, an uterine carcinoma (Mcclure and Guilloud, 1971), four ute...

The fine structural localization of osmium impregnation in the mouse steroid hormone secreting cells, such as Leydig cell of the testis and the theca interna cell of the ovary was studied at electron microscopic level. After prolonged osmication for 40-48 hours, these two kinds of cells exhibited a common selective localization of osmium not only in the cisternae and vesicles on the cis-side of...

The aim of the presented study was to compare the effect of o,p’-DDT [1,1-dichloro-2,2-bis-(p,p’-chlorophenyl)-ethylene] and p,p’-DDT [1,1,1trichloro-2,2-bis-(p-chlorophenyl)-ethane] and their metabolites DDE and DDD on estradiol secretion by ovarian follicles, the target organs of environmental estrogens. Theca interna (Tc) and granulosa cells (Gc) were collected from medium size porcine folli...

Inhibin immunoreactivity was estimated in a number of gonadal and non-gonadal tumors. Dog Sertoli cell tumors and human granulosa cell and Leydig cell tumors contained high concentrations of inhibin-like material. Levels, comparable with those in normal testes and ovaries were detected in human testicular non-seminomas and in ovarian cystadenomas, thecomas and adenofibromas. No activity was fou...

Administration by stomach tube of 86-50 doses of 5 mg. of ~0-methylcholanthrene to Syrian golden hamsters resulted in the occurrence of squamous-cell tumors of the forestomach, adenocarcinomas of the small and large intestine, adenocarcinomas of the mammary glands, thecomas of the ovaries, and sebaceous tumors of the skin and ear duct glands. Of these types of tumors, only a few squamous-cell p...

Ovarian sex cord-stromal tumors are relatively infrequent neoplasms that account for approximately 8% of all primary ovarian neoplasm. Sex cord-stromal tumors of the ovary include granulosa cell tumors, fibrothecomas, Sertoli-Leydigcell tumors, steroid cell tumors, and sclerosing stromal tumors (SST). Sclerosing stromal tumors account for 2% to 6% of ovarian stromal tumors. Despite the rarity o...