Implants ofprogesterone on the day ofdioestrus II in the hamster induced on the following day an increase in circulating levels of progesterone (6\m=.\0\m=+-\0\m=.\7ng/ml, N = 8; sesame oil controls, <0.5 ng/ml, N = 6) and a decline in serum levels of LH (5\m=.\3\m=+-\0\m=.\4ng/ml; controls 12 \m=+-\2 ng/ml) and oestradiol (10 \m=+-\2 pg/ml ; controls 69 \m=+-\5 pg/ml). The production of andros...

Although ovarian theca cells play an indispensable role in folliculogenesis by providing follicular structural integrity and steroid substrates for estrogen production, little information is available about their recruitment, growth, and differentiation because their immature forms have not been identified. We have isolated putative thecal stem cells with the ability to self-renew and different...

Osteochondroma (or osteocartilaginous exostosis) is the most common bone tumor of childhood, with an incidence ranging from 1 to 1.4 per 1,000,000. In the lumbar spine, osteochondromata usually arise from the posterior column at the secondary ossification center and grow away from the spinal canal without causing neurologic deficits. This article reports a rare intraspinal lumbar osteochondroma...

Introduction: Perioperative hypothermia is a common phenomenon with a wide differential diagnosis. We present a unique case of hypothermia following cesarean section under spinal anesthesia. Case report: A 32 years old female, first IVF pregnancy with twins, underwent cesarean section under spinal administration of bupivacaine and morphine. About four hours after operation’s end, body temperatu...

One of the hallmarks of polycystic ovary syndrome (PCOS) is increased ovarian androgen secretion that contributes to the ovarian, hormonal, and metabolic features of this condition. Thecal cells from women with PCOS have an enhanced capacity for androgen synthesis. To investigate whether this propensity is a potential cause, rather than a consequence, of PCOS, we used an ovine prenatal androgen...

Cauda equina syndrome is an unusual complication of ankylosing spondylitis. We present a case of a 68-year-old woman with long-standing ankylosing spondylitis who developed cauda equina syndrome. MRI revealed a characteristic widening of the lumbosacral thecal sac and numerous dorsal thecal diverticula. MRI is a powerful, noninvasive tool to confirm the diagnosis and exclude a treatable compres...

Fig . 1.A, CT scan. Epidural gas outlines thecal sac. 8, Anteroposterior radiograph of lumbar spine demonstrated, in retrospect , gas outlining thecal sac between L5 and 51 (arrows) . C, CT scan. Gas in left sacral foramen and in epidural space. D, CT scan. Soft-tissue mass (arrows) of heterogeneous density, interposed between rectum and coccyx, was thought to be phlegmon rather than frank absc...

Because IGFBP inhibit IGF-stimulated cellular proliferation and differentiation, it is hypothesized that variations among IGFBP in individual follicles might contribute to the regulation of recruitment, selection, dominance, and turnover of ovarian follicles. Sources of IGFBP in fluid of bovine follicles are not well established; thus, objectives of this study were to determine levels of IGFBP ...