Bovine growth hormone (bGH) gene was expressed in an insect spodoptera frugiperda cell line using a Baculovirus, Hyphantria cunea nuclear polyhedrosis virus (HcNPV). The bGH gene in pbGH plasmid was sequenced and amplified by PCR technique with two primers containing NcoI sites. The bGH gene consisted of 654 bp (217 amino acid residues), the 5'-untranslated region of the cloned bGH cDNA contains 56 bp, and the 3'-untranslated region contains 145 bp and two pallindromic regions. The amplified bGH gene DNA fragment (654 bp) was inserted into the NcoI site of the pHcEVII vector, which was named pHcbGH. The pHcbGH transfer vector DNA and the wild type HcNPV DNA were cotransfected into s. frugiperda cells to construct a recombinant virus. Eight recombinant viruses were selected and named HcbGH. One clone, HcbGH-4-1 showed largest plaque size, therefore the recombinant virus was further studied. The multiplication patters of the recombinant HcbGH-4-1 was similar to that of the wild type HcNPV. The bGH gene DNA in the HcbGH-4-1 recombinant was confirmed by Southern lot hybridization. The amount of the bGH (217 amino acid residues, 21 kDa) produced in S. frugiperda cells infected with the HcbGH-4-1 recombinant was approximately 5.5 ng per ml (106 cells) by radioimmunoassay.
Baculoviridae* ; Cell Line ; Clone Cells ; DNA ; DNA, Complementary ; Growth Hormone* ; Insects ; Nucleopolyhedrovirus* ; Plasmids ; Polymerase Chain Reaction ; Radioimmunoassay ; Spodoptera

Human gingival fibroblasts have proven to useful as a species specific cell culture system in various system on periodontal disease and regeneration. However, their use is limited, since they are hard to obtain and lifespan is short due to replicative senescence. To overcome these disadvantages, we transfected primary human gingival fibroblasts by the E6 and E7 genes of the Human papilloma virus(HPV) 16. The full length of HPV 16 E6 and E7 was cloned from the pBR322 into BamH1 and Sal I of a pBabe vector including hygromycin B resistance. Before pBabeE6/E7 plasmid transfection, peak 8 GFP including G418 resistance was transfected into primary GF to check the transfection efficency. PBabe E6/E7 plasmid was transfected using Lipofectamine plus following manufacter's instruction into primary normal human gingival fibroblasts in 60mm dishes with FBS free DMEM. After 2 days of transfection, the cells were treated with hygromycin for 2 weeks until the transfected control cells died. The resulting hygromycin resistant colonies were pooled, and clonned, and sucessful transfection was established for immortalized gingival fibroblast cell lines. Immoralized GF cells showed stellate shape, that is similar to that of orange grains, and more rapid growth and higher proliferation than that of primary gingival fibroblasts. This cell lines overcame crisis and could be cultured over 30 subcultured, could be use for three dimentional culture, epithelial-mesenchymal interaction study.
Cell Aging ; Cell Culture Techniques ; Cell Line* ; Edible Grain ; Citrus sinensis ; Clone Cells ; Fibroblasts* ; Human papillomavirus 16 ; Humans* ; Hygromycin B ; Papilloma ; Periodontal Diseases ; Plasmids ; Regeneration ; Transfection

The ultimate goal of periodontal therapy is the regeneration of periodontal tissue and the repair of function. For more than a decade there have been many efforts to develop ma- terials and methods of treatment to promote periodontal tissue regeneration. Recently many efforts are concentrated on the regeneration potential of material used in traditional medicine. Safflower(Carthamus tinctorius L.) seed extract(SSE) have long clinically used in Korea to promote bone formation and prevent osteoporosis. The purpose of this study was to examine the effects of SSE on bone formation in human osteoblastic cell line. Human fetal osteoblastic cell line(hFOB 1.19) was cultured with DMEM and SSE(1microgram/ml, 10microgram/ml, 100microgram/ml, 1mg/ml) at 34degrees C with 5% CO2 in 100% humidity. The proliferation, differentiation of the cell was evaluated by several experiments. Cell proliferation was significantly increased at 10microgram/ml, 100microgram/ml, 1mg/ml of SSE after 3 and 7 days incubation(p<0.05). Cell spreading assay was significantly increased at 100microgram/ml of SSE after 3 days and 1microgram/ml, 10microgram/ml, 100microgram/ml, 1mg/ml of SSE after 7 days(p<0.05). Alkaline Phosphatase(ALP) level was significantly increased in 10microgram/ml, 100microgram/ml of SSE(p<0.05). Collagen synthesis was significantly increased at 10microgram/ml, 100microgram/ml, 1mg/ml of SSE(p<0.05). A quantified calcium accumulation was significantly increased at 10microgram/ml, 100microgram/ml of SSE(p<0.05). ALP and osteocalcin mRNA was expressed in 100microgram/ml of SSE by RT-PCR. These results indicate that SSE are capable of increasing osteoblasts mineralization and may play an important role in bone formation.
Calcium ; Carthamus tinctorius* ; Cell Line ; Cell Proliferation ; Collagen ; Humans ; Humidity ; Korea ; Medicine, Traditional ; Osteoblasts ; Osteocalcin ; Osteogenesis* ; Osteoporosis ; Regeneration ; RNA, Messenger

PURPOSE: To review clinical and radiological results after open reduction and internal fixation with T plate for unstable distal clavicle fractures. MATERIALS AND METHODS: From July. 1999 to December 2002, nine patients with distal clavicle Neer type II fractures were treated by open reduction and internal fixation with T plate. The bony union was confirmed by plain radiography. The clinical results were analyzed according to the classification by Kona et al. RESULTS: Average time to fracture union was 8 weeks in all cases. The functional results were as follows: excellent in 7 cases and good in 2 cases. Screw loosening occurred in one case, but bony union was achieved. CONCLUSION: We recommend T plate fixation as another treatment method for unstable distal clavicle fractures.
Classification ; Clavicle* ; Humans ; Radiography

Anomalous right coronary artery arising from the left sinus of Valsalva is rare, but not protected from ather-osclerotic disease. Major factor determining successful angioplasty is the selection of the appropriate guiding catheter to provide optimal coaxial backup support. We report the first case of successful transradial stenting of an anomalous right coronary artery originating from the left sinus of Valsalva.
Angioplasty ; Catheters ; Coronary Vessels* ; Sinus of Valsalva* ; Stents*

No abstract available.
Bone Regeneration ; Calcium* ; Heterografts ; Humans* ; Osteoblasts* ; Osteogenesis*

The arteriovenous fistula and cirsoid aneurysm, characterised by abnormal arterial and venous connections with grossly dilated and expansile mass of vessels, may predispose to dramatic complications. Cirsoid aneurysms of the scalp have been reported to be difficult to remove. Multiple treatment schemes have been described and, as yet, no standard form of therapy exists. Three cases of cirsoid aneurysms of the scalp are presented. Each of them was treated with embolization and total excision after ligation of the feeding arteries. All of them were well cured.
Aneurysm* ; Arteries ; Arteriovenous Fistula ; Ligation ; Scalp*

BACKGROUND: Although olfactory stimulation has been known to produce effects on human mood and cognition, the specific EEG patterns of activity was reported diversely. The purpose of this study was to investigate EEG changes by odorant using low resolution electromagnetic tomography (LORETA) in young healthy subjects. METHODS: The EEG's of nineteen (10 males, 9 females) non-smoking right-handed college students were recorded after odorant stimulation. A nineteen-channel EEG was recorded referenced to linked ears before and during olfactory stimulation. Olfactory stimulation was presented with lavender essential oil by blotter method. The LORETA power was computed from ten 2-s epochs, separately for the different EEG frequencies. The power values were logarithmically transformed and paired sample t-tests were done for each voxel and frequency band (1.5-30 Hz). Statistical results were displayed 3-dimensionally on the standard brain template. RESULTS: All subjects experienced positive feelings (relaxed and pleasant) by olfactory stimulation with lavender oil (p<0.01). The LORETA power of theta and alpha band was increased in the dorsolateral and medial frontal areas, predominantly in the posterior cingulate gyri. The alpha LORETA power was also increased in bilateral orbitofrontal regions and the left perisylvian region including the insular cortex. Beta power was increased in the posterior cingulated gyri and mesial temporal region, predominantly on the left side. CONCLUSIONS: These results suggest that olfaction associated with emotional feeling might induce brain electrical power changes not only in the limbic system but also in the neocortex with lateralization to the dominant hemisphere.
Brain ; Cognition ; Ear ; Electroencephalography ; Humans ; Lavandula ; Limbic System ; Magnets ; Male ; Neocortex ; Odors* ; Smell

Mallory-Weiss syndrome is a laceration in the region of the gastroesophageal junction due to vomiting, retching, coughing preceding hematemesis in alcoholic patient. Bleeding from Malloly-Weise tears stop spontaneously without specific therapy in 80-90% of patient, but rebleeding occurs in 2 to 5% of patients. Thus most patients require only supportive care. Rarely endoscopic therapy or operative therapy may be required. We performed endoscopic mucosal ligation using intraluminal negative pressure with band ligation for uncontrolled Mallory-Weiss syndrome. In conclusion, Endoscopic O-ring band ligation in uncontrolled intractable Mallory-Weiss syndrome is safe and effective method, but its important that accurate endoscopic O-ring band ligation an bleeding site in laceration area. We experienced endoscopic O-ring band ligation in 6 cases of Mallory-Weiss syndrome.
Alcoholics ; Cough ; Esophagogastric Junction ; Hematemesis ; Hemorrhage ; Humans ; Lacerations ; Ligation* ; Mallory-Weiss Syndrome ; Vomiting

Mallory-Weiss syndrome is a laceration in the region of the gastroesophageal junction due to vomiting, retching, coughing preceding hematemesis in alcoholic patient. Bleeding from Mallory-Weiss tears stop spontaneously without specific therapy in 80-90 percent of patient, but rebleeding is uncommonly occurring in 2 to 5 percent of patients. Thus most patients require only supportive care. Rarely endoscopic therapy or operative therapy may be required. We conducted an uncontrolled study to evaluate an improved metallic clip(Olympus hemoclip) for the endoscopic treatment of Mallory-Weiss syndrome. Initial hemostasis was achieved in all patients with active bleeding. No complications resulted from this treatment. Clips did not impair healing of teared mucosa. We conclude that endoscopic hemoclip placement is a highly effective and safe method for treating uncontrolled Mallory-Weis syndrome.
Alcoholics ; Cough ; Esophagogastric Junction ; Hematemesis ; Hemorrhage ; Hemostasis ; Humans ; Lacerations ; Mallory-Weiss Syndrome ; Mucous Membrane ; Vomiting