GTP binding protein (G-protein) associated with membrane and involved in signal transduction was isolated from bovine brain, and molecular weight of G protein was observed. As the results, cell membranes were homogenized from bovine brain tissues and proteins of membrane were gained using 1% cholate, and progressed the chromatography. The purification process was performed by step, DEAE-Sephacel, Ulttrogel AcA 34 and heptylamine-Sepharose column chromatography. The chromatographic fractions were confirmed by GTP binding assay and SDS-polyacrylamide gel electrophoresis. Molecular weight of Goa was revealed 39,000 dalton and GR 36,000 dalton. One more step of heptylamine-Sepharose was enforced to purify the GTP binding protein. Finally I gained the GTP binding protein isolated subtype of Goalpha and Gbeta.
Brain* ; Cell Membrane ; Cholates ; Chromatography ; Electrophoresis ; GTP-Binding Proteins ; Guanosine Triphosphate* ; Membranes ; Molecular Weight ; Signal Transduction

No abstract available.
Drug Resistance, Multiple* ; Drug Therapy*

Perinatal asphyxia is an insult to fetus or newborn due to lack of oxygen or perfusion to various organs, especially to brain, resulting in the important complication known as hypoxic ischemic encephalopathy. A clinical study was conducted on 30 newborns with perinatal asphyxia, who were admitted to Pediatric department of Ewha Women's University Hospital during 18 months period from Sep. 1990 to Feb. 1992. CPK, LDH and isoenzymes were measured in 30 asphyxated neonates and compared with control group. The results were as follows: 1) The serum CPK values at 1st and 7th day were not different in the asphyxia group and control group. 2) The serum CPK-BB and MB fraction at 1st day were highly significant in the asphyxia group. 3) The CSF CPK value at 1st day was highly significant in the asphyxia group. 4) The serum LDH values and the serum LDH isoenzyme 3 were highly significant in asphyxia group at 1st day. 5) The CSF LDH values and the CSF LDH isoenzyme 2 and 3 were highly significant in asphyxia group at 1st day. So, we concluded the serum CPK-BB fraction, the CSF CPK values, the serum LDH values, the serum LDH 2 fraction, the CSF LDH values and the CSF LDH 2,3 fraction as predictors of neurologic disability following perinatal asphyxia.
Asphyxia* ; Brain ; Fetus ; Humans ; Hypoxia-Ischemia, Brain ; Infant, Newborn ; Isoenzymes ; Oxygen ; Perfusion

Rett syndrome is a newly characterized developmental disorder that affect girls exclusively. These girls are born clinically normal, but their psychomotor development stagnates and deteriorates between the age of 6 months and 2 1/2 years. The full syndrome comprises; aquired microcephaly, severe dementia, autism, loss of purposeful use of the hands, characteristic hand-wringing stereotypies, jerky ataxia of the trunk, epilepsy with various types of fits, and in later years spastic and trophic changes of the lower limbs. There is no known cytogenetic, biochemical or molecular marker for the disorder; the diagnosis is based on clinical criteria. We report a case of Rett syndrome with a brief review of related literatues.
Ataxia ; Autistic Disorder ; Cytogenetics ; Dementia ; Diagnosis ; Epilepsy ; Female ; Hand ; Humans ; Lower Extremity ; Microcephaly ; Muscle Spasticity ; Rett Syndrome*

No abstract available.
DNA Nucleotidylexotransferase*

No abstract available.
Mass Screening*

The authors and their respective affiliations should be corrected.

BACKGROUND: EGF and TGF-a are ligands for the EGF-receptor and act as mitogens for a variety of tissues. TGF-a, in particular, has been implicated as an autocrine growth factor for several cancer cell lines. TGF-B exerts an inhibitory effect on the growth of most epithelial cell types, and the loss of responsiveness to this growth inhibition has been implicated in the development of a variety of human cancers. In the present study, we evaluate whether EGF, TGF-a and TGF-B modulate apoptosis and cell cycle progression in cervical cancer cell lines. MATERIALS & METHODS: The effect of EGF, TGF-a and TGF-B on apoptosis and cell cycle such as CaSki and HeLa cell lines was analysed by flow cytometry RESULTS: 1. TGF-B did not induce apoptosis in CaSki and HeLa cell lines. 2. TGF-B as well as EGF, TGF-a, did not affect the process of apoptosis significantly. 3. The time to occur apoptosis was different between CaSki and HeLa cells treated by growth factots. 4. G1 phase was the checkpoint in CaSki and HeLa cells treated with TGF-B. CONCLUSION: These results suggest that TGF-B as well as EGF, TGF-a does not induce apoptosis and cell growth inhibition.
Apoptosis* ; Cell Cycle Checkpoints* ; Cell Cycle* ; Cell Line* ; Epidermal Growth Factor* ; Epithelial Cells ; Flow Cytometry ; G1 Phase ; HeLa Cells ; Humans ; Ligands ; Mitogens ; Uterine Cervical Neoplasms*

M llerian anomalies have been infrequently encountered clinical problem for the obstetrician gynecologist, incidence was estimated to occur in 1% to 6% of all women. Recently, the use of vaginal ultrasound, MRI and endoscopic techniques have led to more accurate description and classification of m llerian anomalies. This report of a complete uterine septum with duplication of the cervix and a longitudinal vaginal septum with hemivaginal stricture represents a unique case of septate uterus, which to our knowledge previously has not been reported.
Cervix Uteri* ; Classification ; Constriction, Pathologic* ; Female ; Humans ; Incidence ; Magnetic Resonance Imaging ; Ultrasonography ; Uterus*