No abstract available.
Hydrogen-Ion Concentration* ; Osmolar Concentration* ; Sperm Motility* ; Spermatozoa*

No abstract available.
Diagnosis* ; Leptospirosis* ; Scrub Typhus*

Recently it has been stated that animals without ischemic arrhythmia would be at almost no risk for reperfusion ventricular fibrillation(VF) in contrast to animals with ischemic arrhythmias. In order to observe the differences of ararrhythmias characteristics between ischemic and reperfusion period, and correlationship between occlusion and reperfusion arrhythmias, the left anterior descending(LAD) coronary artery was occluded for 20 minutes and reperfused for 10 minutes in 24 anesthetized cats. The results were as follows; 1) After ligation of LAD coronary artery, the R wave, S-T segment and T wave of epicardial EKG were elevated to reach maximum level at 5-10 minutes. 2) During reperfusion, the changes of R wave, S-T segment, and T wave of epicardial EKG were not significant. 3) The incidence of arrhythmias at early phase and late phase of occlusion period were 41.6% and 100% respectively. The ischemic arrhythmia score was 2.38+/-1.61 and incidence of ventricular tachycardia(VT) was 66% 4) The incidence of VT and VF during reperfusion was 100% and 62.5% respectively. The reperfusion arrhythmia score was 5.88+/-1.72. 5) The two morphologies of ventricular arrhythmias were observed at occluson and reperfusion period. 6) The disparities between occlusion and reperfusion arrhythmias were observed. 7) The cats with shorter R-R internal and/or lower systolic left ventricualr pressure had the higher incidence of VF. In summary, although the morphology of occlusion ventricular arrhythmias was similar to that of reperfusion ventricular arrhythmias, the lack of correlation between reperfusion VF and ischemic arrhythmias was observed. So we suggest that further studies which provide the different mechanisms involved in occlusion and reperfusion arrhythmias were needed.
Animals ; Arrhythmias, Cardiac* ; Cats* ; Coronary Vessels ; Electrocardiography ; Incidence ; Ligation ; Reperfusion*

Dermatitis Herpetiformis rarely in childhood, and certain features of the disease in children differ from its manifestations in adults. Juvenile dermatitis herpetiformis appears not to be the same disease as the typical dermatitis herpetiformis of adults. Juvenile dermatitis herpetiformis has been described as a predomimantly bullous disease, but rarely papulovesicular eruptions. This bullous eruption in children must be considered in the several entities such as bullous pemphigoid and erythema multiforme. Juvenile bullous dermatitis herpetiformis has not responded routinely to sulfapyridine and sulfone therapy. A 15-month-old child whose skin lesions fulfilled clinical, histologic, and therapeutic criteria for Juvenile dermatitis hepetiformis is reported. The skin lesions showed bullous eruptions and also complained of severe itching sensation different from bullous Juvenile dermatitis herpetiformis.
Adult ; Child ; Dermatitis Herpetiformis* ; Dermatitis* ; Erythema Multiforme ; Humans ; Infant ; Pemphigoid, Bullous ; Pruritus ; Sensation ; Skin ; Sulfapyridine

No abstract available.
Free Radicals* ; Reperfusion*

No abstract available.
Spondylolisthesis* ; Zygapophyseal Joint*

No abstract available.
Spondylolisthesis*

The results of surgical treatment for isthmic spondylolisthesis in children and adolescent have been well documented. Successful clinical results with fusion can be expected in children and adolescent. But in adults, instability was not the only problem. In addition to their instability, adults were more likely to have degenerative disc changes and nerve compression not solved by fusion only. The role of decompression in the surgical treatment of adult isthmic spondylolisthesis remains controversial. Anterior interbody fusion could obtain indirect decompression of nerve root through widening of intervertebral space. Posterolateral fusion with transpedicular fixation could get direct decompression. So, the purpose of this study is to compare the clinical results of the anterior interbody fusion and the posterolateral fusion with transpedicular fixation for the treatment of isthmic spondylolisthesis in adults. We reviewed the clinical data of 40 adult patients who had been taken operation due to isthmic spondylolisthesis from June, 1977 to June, 1994. The anterior interbody fusion was performed in 20 patients (Group I) and the posterolateral fusion with transpedicular fixation was performed in 20 patients (Group II). The mean age of group I was 44.1 years old (21-62), and that of group II was 41.3 years old (21-57). The gender of patients was 8 males and 12 females in group I, and 5 males and 15 females in group II. The symptoms and signs of group I and II were similar. The duration of follow-up was average 3.6 years (1.1-16 years) in group I and average 2.3 years (1.1-6 years) in group II. The anterior slippage of group I by Taillard method was 16.1% and was corrected into 10.4% after opera-up was average 3.6 years (1.1-16 years) in group I and average 2.3 years (1.1-6 years) in group II. The anterior slippage of group I by Taillard method was 16.1% and was corrected into 10.4% after operation. That of group II was 15.2% and corrected into 9.8% after operation. The fusion rate at 12 months after operation was 90% in group I and 95% in group II. The clinical results were analysed by Kim's criteria that was focused on the improvement of clinical symptoms. The satisfactory results were obtainted in 85 % of group I and 90 % of group II. So there was no significant difference of clinical results between the anterior interbody fusion and the posterolateral fusion with transpedicular fixation for the treatment of isthmic spondylolisthesis in adults (p<0.05).
Adolescent ; Adult* ; Child ; Decompression ; Female ; Follow-Up Studies ; Humans ; Male ; Spondylolisthesis

PURPOSE: This study was designed to compare fracture healing in normal and ovariectomized rat, and to evaluate the effect of intermittent administration of parathyroid hormone on fracture healing in osteopenic animal model, MATERIALS AND METHODS: Four-months-old mature female Sprague-Dawley rats were randomly elivided into 5 groups. Group I underwent a sham operation, and others (Group II-V) were ovariectomized. At three months after ovariectomy or sham operation, standardized bilateral transverse tibial fractures were created and intramedullary nailings with Kirschner wire were performed. The rats were then treated with daily subcutaneous injection of placebo in Groups I and II, 17beta-estradiol in Group III, low doses of recombinant human PTH (1-84) in Group IV, and high doses of recombinant human PTH (1-84) in Group V for 4 weeks. At day 30 of post-fracture the animals were sacrificed and fracture healing was assessed with histologic/histomorphometric analysis and three-point bending mechanical testing. RESULTS: On histologic/histomorphometric evaluation of sham operation group, the fracture callus mainly consisted of dense trabecular bone. On the other hand, Groups II and III seemed to have much looser cancellous network, abundant in fibrous marrow. In parathyroid hormone-treated g roups, external callus consisted of more dense trabecular, woven bone than that of Groups II or III, and especially the high doses of parathyroid hormone-treated group was comparable to the sham operation group in terms of per cent trabecular bone volume (Group I>V>IV>III=II, P<0.05). Mechanical testing indicated that ultimate load was reduced in Group II and III compared to sham operated or parathyroid hormone-treated groups (Group I=V>IV>III=II, P<0.05). Other significant differences were the increase in absorbed energy at ultimate load of Groups I and V (Group I=V>IV=III=II, P<0.05), and increase in ultimate stress of Groups I and V (Group I=V>IV=II=III, P<0.05). CONCLUSIONS: On the basis of this study, it may be concluded that fracture healing is delayed in the ovariectomy-induced osteopenic rat model. Our experiment also showed dose-related stimulation of parathyroid hormone in the strength of fracture, and that antiresorptive agents such as estrogen had no effect. Further study is needed in large animal model, and attention should be focused on systemic/long-term effect of parathyroid hormone and its relationship with local growth factors in fracture healing.
Animals ; Bone Density Conservation Agents ; Bone Marrow ; Bony Callus ; Estrogens ; Female ; Fracture Fixation, Intramedullary ; Fracture Healing* ; Hand ; Humans ; Injections, Subcutaneous ; Intercellular Signaling Peptides and Proteins ; Models, Animal ; Ovariectomy ; Parathyroid Hormone* ; Rats* ; Rats, Sprague-Dawley ; Tibial Fractures

Morphological characteristics of human embryos of Carnegie stage 17 were described. The crown rump length of these embryos were 11.7-13.6mm. These embryos were characterized externally by ventrally directed nasal pits, 6 distinct auricular hillocks, finger rays in the hand plate, digital plate at the lower limb bud, herniation of a part of midgut through umbilical cord, and internally by the partial fusion of ventral and dorsal pancreas, prominent nasal sac which is not open to primitive oral cavity, formation of segmental and some subsegmental bronchial buds, branching of metanephrotic pelvis, crescent-shaped lens cavity, and imminent semicircular ducts.
Crown-Rump Length ; Embryonic Structures* ; Fingers ; Hand ; Humans* ; Lower Extremity ; Mouth ; Pancreas ; Pelvis ; Semicircular Ducts ; Umbilical Cord