No abstract available.
Adolescent* ; Humans ; Korea*

No abstract available.
Adult* ; Human Body* ; Humans* ; Male*

A clinical trial was done to evaluate the antihypertensive efficacy and side effects of manidipine, a new calcium antagonist, in 30 patients with mild to moderate essential hypertension. 1) The study patients consisted of 19 men and 11 women, and the mean age was 51.8 years. 2) Blood pressure dropped significantly in 2 weeks and in 4 weeks, and well maintained throughout the study period. The mean-pressure drop was 26.2/14.9mmHg after 10 weeks. 3) Heart rate did not change significantly with manidipine therpy. 4) Optimal dose for effective pressure-drop was between 10 and 20 mg in 86% of patients. Overall good antihypertensive effect was achieved in 83% of patients. 5) All of the laboratory parameters including blood chemistry, glucose, lipid and electrolytes did not change, but serum calcium increased from 9.2% mg/dl (p=0.001) in 10 weeks. 6) Side effects were mild in nature(palpitation in 3, dry mouth in 1, weakness in 1 and impotence in 1 patient). In conclusion, manidipine monotherapy with 10 to 20 mg once a day regimen is effective and well tolerated in the patients with mild to moderate essential hypertension.
Blood Pressure ; Calcium ; Chemistry ; Electrolytes ; Erectile Dysfunction ; Female ; Glucose ; Heart Rate ; Humans ; Hypertension* ; Male ; Mouth

Descending Necrotizing Mediastinitis (DNM) is a complication of oropharyngeal infections that can spread to the mediastinum. It is difficult to diagnose early because clinical and radiologic findings appear in the late stage of the infection. late diagnosis is the principal reason for the high mortality in DNM. An 18-year-old female admitted with Ludwig's angina from dental caries. Despite of combined antibiotics, dental extraction and drainge of submental abscess, infection spread to the cervical area. Chest computed tomogram revealed extension of the abscess to the pretracheal and periaortic space and development of bilateral pleural empyema. We performed bilateral cervical mediastinotomy and thoracotomy for drainage and debridement. Tracheostomy to secure the airway and postoperative pleural irrigation were performed. Postoperative course was uneventful and patient was discharged on the 40th postoperative day. It is important to perform chest CT scanning for early diagnosis of DNM when oropharyngeal infection spreads to the cervical area. Improved survival of patients with DNM implies early and radical surgical drainage and debridement via a cervical mediastinomy and thoracotomy.
Abscess ; Adolescent ; Anti-Bacterial Agents ; Debridement ; Delayed Diagnosis ; Dental Caries* ; Drainage ; Early Diagnosis ; Empyema, Pleural ; Female ; Humans ; Ludwig's Angina ; Mediastinitis* ; Mediastinum ; Mortality ; Thoracotomy ; Thorax ; Tomography, X-Ray Computed ; Tracheostomy

BACKGROUND: Endothelin-1 is a potent vasoconstrictor substance that causes slow and longlasting contractions of isolated blood vessels. In the aorta of the spontaneously hypertensive rat, endothelin-1 stimulates the release of a cyclooxygenase-dependent, endothelium-derived contracting factor(EDCF), presumably thromboxane A2. There have not been any studies about the response of porcine coronary arteries with regenerated endothelium to endothelin-1. METHODS: The present study was designed to determine the role of EDCF in the response to endothelin-1 in arteries with regenerated endothelium. Rings of porcine coronary arteries, with and without endothelium of previously deendothelialized left anterior descending coronary artery and native left circumflex coronary arteries, were suspended in conventional organ chambers for the measurement of isometric force. RESULTS: In quiescent rings of the previously deendothelialized left anterior descending coronary artery treatd with the nitric oxide synthase inhibitor nitro-Larginine, endothelin-1 caused contractions which were larger in the rings with edothelium than in those without endothelium. Under the same experimental conditions, in the left circumflex coronary artery, the contractions to edothelin-1 were significantly greater by the removal of the endothelium. In rings with endothelium of the previously deendothelialized left anterior descending coronary artery, indomethactin(inhibitor of cyclooxygenase) and ridogrel(thromboxane A2 receptor antagonist, and inhibitor of thromboxane synthase) shifted the concentration-response curve to endothelin-1 to the right and to a comparable extent. Dazoxiben(inhibitor of thromboxane syndthase) and BQ-123(selective antagonist of endothelin-A receptor subtype) inhibited, to the same extent as indomethacin and ridogrel, the response to higher concentrations of endothelin-1. The endothelium-dependent component of the response to lower concentrations of endothelin-1 was inhibited by indomethacin and ridogrel, but not by dazoxiben and BQ-123. In rings without endothelium of both previously deendothelialized left anterior descending and native left circumflex coronary arteries, indomethacin and ridogrel did not affect the contractions to endothelin-1. CONCLUSION: These findings suggest that in regenerated endothelium, high concentrations of endothelin-1 stimulate the release of thromboxane A2 through activation of edothelin-A receptors. Endoperoxides generated by activation of endothelial cyclooxygenase may be the endothelium-derived contracting factor(s) released in regenerated endothelium by lower concentrations of the peptide.
Aorta ; Arteries ; Blood Vessels ; Coronary Vessels* ; Endothelin-1 ; Endothelium* ; Indomethacin ; Nitric Oxide Synthase ; Prostaglandin-Endoperoxide Synthases ; Rats, Inbred SHR ; Thromboxane A2*

The purpose of this study was to investigate whether the Bone Mineral Density (BMD) in a postmenopausal women has affected by a long-term swimming exercise. Swimming exercised 9 female and non-exercised 13 female were involved in this study. All of them were accepted by selection criteria through a questionnaire and personal interviews. Experimental group performed regularly swimming exercise while over a 8 year, but control group never taken part in any activities periodically. Bone densities were measured at Lumbar 2-4 and Femur's 3 sites (neck, ward's triangle, and trochanter) with DEXA method (Lunar DPX). There are no significant differences between two groups on the ages, body weights, heights, % fats, and menopausal durations. Bone densities on the neck and ward's triangle of Femur were 1.7% and 2.7% higher in the control group than in the swimming group, not significant between two groups. In the case of Femur trochanter and Lumbar 2-4 sites, swimming group however were nonsignificantly higher 2% and 5.3% than control group, respectively. In conclusion, it was recognized that a long-term swimming exercise may be ineffective to intensify local density, stiffly lowering in a postmenopausal women.
Body Weight ; Bone Density* ; Bone Remodeling ; Fats ; Female ; Femur ; Humans ; Methods ; Neck ; Osteoporosis ; Patient Selection ; Postmenopause ; Swimming

Interleukin 1(IL-1), a 17.5 KD glycoprotein, is known to be associated with local bone resorption. In the present study, we examined the effects of IL-1, compared with insulin and parathyroid hormone (PTH), on DNA, protein and collagen synthesis in UMR-106-01 rat osteoblastic osteosarcoma cells. When 200 units/mL IL-1 was administered to UMR-106-01 cells, [3H]-thymidine uptake increased to 119% of the untreated control. But when 10 nM insulin was added to the cells, [3H]- thymidine uptake increased to 130% and when 1 nM PTH was added, the uptake decreased to 89% of the control. On the other hand, protein and collagen synthesis, measured by [3H]-leucine and [3H]-proline incorporation respectively, were not affected by IL-1 administration compared to the other hormones. These results indicate that IL-1 effects osteoblast-like cells, stimulating DNA synthesis via a different mechanism to the well-known cell growth factor, insulin.
Animals ; Bone Resorption ; Cell Proliferation* ; Collagen ; DNA ; Glycoproteins ; Hand ; Insulin ; Interleukin-1* ; Interleukins ; Osteoblasts ; Osteosarcoma ; Parathyroid Hormone ; Rats ; Thymidine

In carpal injury, a good functional end result seems to correlate with final anatomic alignment of carpus after treatment. Some cases are often misdiagnosed and result in inadequate treatment. Forty six cases of carpal injuries were analysed which were treated for 9 years from 1975 to 1984 at the Department of Orthopedic Surgery, Seoul National University Hospital. The observations can be summarized as follows. 1. The male to female ratio was 3.5: 1 and 82% of total cases were in the third and fourth decades. 2. The most frequent cause of injury was fall from height with outstretched hand. 3. Trans-scaphoid perilunar dislocation and its variant were the most common diagnosis in this analysis. 4. All of the scapho-lunate dissociation showed volar flexion intercalated segmental instability with scapho-lunate gap more than 2 mm in our series. 5. In 11 cases of trans-scaphoid perilunar dislocation and its variant, carpal collapse was found in 10 cases. In 5 cases dorsiflexion intercalated segmental instability pattern and in one case volar flexion intercalated segmental instability pattern were found to be present. 6, There was an increase in scapho-lunate angle in all cases of dorsiflexion intercalated segmental instability, but a decrease in scapho-lunate angle is not a consistent finding in volar flexion intercalated segmental instability. 7. In 24 cases more than 6 months follow-up, excellent and good results were obtained in 20 cases. 8. As a result of above findings, authors conclude that scapho-lunate gap more than 2mm has diagnostic value in scapho-lunate dissociation but that dorsiflexion intercalated segmental instability or volar flexion intercalated segmental instability only means the changes in the relationship between carpal bones and does not have definite or specific diagnostic value for a specific carpal injury.
Carpal Bones ; Diagnosis ; Dislocations ; Female ; Follow-Up Studies ; Hand ; Humans ; Male ; Orthopedics ; Seoul ; Wrist

No abstract available.
Magnesium Sulfate* ; Magnesium* ; Torsades de Pointes*

No abstract available.
Tendons*