No abstract available.
Embryo Transfer* ; Embryonic Structures* ; Fertilization in Vitro* ; Pregnancy*

No abstract available.
Contraceptives, Oral* ; Fertilization in Vitro* ; Gonadotropins*

No abstract available.
Female ; Methotrexate* ; Pregnancy ; Pregnancy, Tubal*

No abstract available.
Female ; Follicle Stimulating Hormone* ; Gonadotropin-Releasing Hormone* ; Gonadotropins* ; Humans ; Ovarian Diseases*

No abstract available.

OBJECTIVE: Recently, we have demonstrated that embryonic ventral spinal cord motor neurons(ESMNs), transplanted into the distal stump of the axotomized tibial nerve, can grow into the denervated gastrocnemius muscle and form neuromuscular junctions. Our interest in study was to see whether these newly formed neuronal connections are physiologically active, and to electrophysiologically characterize the reinnervated motor units. MATERIAL AND METHODS: Three to eight weeks after transplantation rats were prepared for electrophysiological recording. Motor unit (MU) action potential and gross EMG were monitored. In eleven out of sixteen transplanted animals single unit and gross EMG were recorded after electrical stimulation of the transplant site. Total of 63 motor units were analyzed for their stimulus threshold (ST), latency and stimulus intensity, which is required to produce maximum firing. RESULTS: ST intensities activating MUs were significantly higher in transplanted animals than in controls. Maximum firing of MUs occurred at less than 1.2×T in the control but greater variation was observed in the transplanted animals ranging from 1.1×T to 1.6×T. No significant differences were found in the latencies of MU's firing following stimulation. MU firing was reversibly blocked by infusion of succinylcholine. CONCLUSION: we characterized the temporal, morphological and electrophysiological parameters of denervated skeletal muscle reinnervated by dissociated grafts of embryonic ventral spinal cord cells. MUs reinnervated by the embryonic motoneuronal transplant were physiologically active, with some properties similar to the MUs of the normal.
Action Potentials ; Animals ; Electric Stimulation ; Fires ; Mice ; Motor Neurons ; Muscle, Skeletal ; Neuromuscular Junction ; Neurons ; Rats ; Spinal Cord ; Succinylcholine ; Tibial Nerve ; Transplants

No abstract available.
Fertilization in Vitro* ; Gonadotropin-Releasing Hormone*

No abstract available.
Electroconvulsive Therapy ; Lacerations ; Tongue

Perioperative hypomagnesemia is common in major surgical patients. MgSO4 infusion may be useful in the treatment of arrhythmia, asthma and postoperative shivering and in the prevention of hemodynamic stimulation associated with endotracheal intubation and surgery of pheochromocytoma. It may also enhance muscular relaxation and improve postoperative analgesia. It can be an ideal adjunct to propofol-remifentanil-based total intravenous anesthesia.
Analgesia ; Anesthesia ; Anesthesia, Intravenous ; Arrhythmias, Cardiac ; Asthma ; Hemodynamics ; Humans ; Intubation, Intratracheal ; Magnesium ; Pheochromocytoma ; Relaxation ; Shivering

OBJECTIVE: To evaluate the efficacy of low dose gonadotropin releasing hormone agonist(GnRH-a) therapy combined with high dose human menopausal gonadotrpin(hMG) following estrogen & progesteron therapy for poor responders. METHODS: From May 1997 to Feb 1999, 36 patients who were defined as poor responders on previous consecutive two and more superovulation cycles were randomly allocated to lowdose GnRH-a short protocol with high dose hMG protocol pretreated with estrogen & progesterone(E/P therapy)(n=16)(study group) and the clomiphene citrate with hMG(n=20)(control group). All patients were planned to undergone in-vitro- fertilization(IVF) and embryo transfer(ET) after controlled ovarian hyperstimulation(COH). RESULTS: Two groups were similar with respect to clinical features and basal FSH and E2 levels. The mean level of E2 on day 5, 304.3+/-148.ng/ml in study group was significantly higher than that in control group, 182+/-34.9ng/ml. The mean levels of E2 on hCG day was also significantly higher in study group than control group(1324+/-320ng/ml, vs 414+/-168ng/ml). The mean day of hCG day in study group, 12.3+/-0.3 was shorter than that in control group, 13.8+/-0.4. The concellation rates of cycles were significantly lower in study group than control group(13.2% vs 84.2%). But clinical pregnancy rates did not showed the significant difference between two groups. CONCLUSION: The study suggested that a lowdose GnRH-a short protocol with high dose hMG pretreated with estrogen & progesterone can improve the ovarian response in poor responder group.
Clomiphene ; Embryonic Structures ; Estrogens ; Gonadotropin-Releasing Hormone* ; Humans ; Pregnancy Rate ; Progesterone ; Superovulation