Platelet-rich plasma (PRP) has been known to increase the rate and degree of bone formation by virtue of growth factors in concentrated platelets. Although its great healing effect on bone defect or pre-implantation site preparation in conjunction with bone substitute has been reported, the effect associated with implant is unknown. The purpose of this study was to investigate the effect of PRP on rapid osseointegration of endosseous dental implants in the rabbit tibiae. Twenty two adult female New Zealand white rabbits, weighing approximately 2.7-3.3kg, were used for this study. Twelve of the 22 animals were used for histomorphometric analysis and ten of the 22 were for removal torque test. Each animal received two implants in each tibia (two treated with PRP and two as control) and was given fluorochrome intramuscularly. For histomorphometric analysis, rabbits were divided into four groups according to the healing period. At 1 week, 2 weeks, 4 weeks and 8 weeks postoperatively, each three animals were sacrificed serially and the amount and rate of bone formation around dental implant were examined on the undecalcified sections under fluorescent microscope, polarized microscope and light microscope connected to a personal computer equipped with image analysis system. For removal torque test, rabbits were divided into two groups and removal torque tests were performed at 4 weeks, 10 weeks after implant placement. In total, 88 screw shaped, commercially pure titanium implants (Neoplant, Neobiotech, Seoul, Korea) were used in this study. Labeling pattern reflected differences of two groups in bone formation rate at each period. Histomorphometrically, PRP group showed significantly higher bone volume within threads compared to control group at 2 weeks (70.30+/-4.96% vs. 50.68+/-6.33%; P<.01) and 4 weeks (82.59+/-5.94% vs. 72.94+/-4.57%; P<.05). PRP group at 1, 2 and 4 weeks revealed similar degree of bone volume formation comparable to control group at 2, 4 and 8 weeks, respectively. On the other hand, while PRP group showed higher bone-implant contact (47.37+/-8.09%) than control group (33.16+/-13.47%) at 2 weeks, there were no significant differences between PRP group and control group for any experimental period. Removal torque values also showed no significant differences between PRP group and control group at any experimental period (P>.05). These findings imply that PRP could induce rapid, more bone formation around implant during early healing period and get faster secondary stability for reducing healing period, though it has not induced bone maturation enough to resist functional loading.
Adult ; Animals ; Bone Substitutes ; Dental Implants* ; Female ; Hand ; Humans ; Intercellular Signaling Peptides and Proteins ; Microcomputers ; Osseointegration ; Osteogenesis* ; Platelet-Rich Plasma* ; Rabbits ; Seoul ; Tibia ; Titanium ; Torque* ; Virtues

Adenomyosis is a common disease of middle-aged women and adenomyoma is a variety of adenomyosis that formed localized tumor. Cystic degeneration of an adenomyoma is a rare clinical manifestation. A 30-year-old parous woman suffered from severe dysmenorrhea and menorrhagia for about 5 months, was operated under the impression of endometriosis of the pelvis. Following the operation, cystic degeneration of an adenomyoma was found incidentally. The authors experienced a case of adenomyosis that formed cystic tumor of uterus and presented with a pertinent literatures.
Adenomyoma ; Adenomyosis* ; Adult ; Dysmenorrhea ; Endometriosis ; Female ; Humans ; Menorrhagia ; Pelvis ; Uterus

A 62-year-old male was admitted for evaluation of a mass shadow on chest film. Chest PA showed 7×5cm lobulated homogenous mass in right upper medial area of lung. On chest computed tomography, there was a Barge irregularly lobulated mass with central necrotic low density area in apical segment of right upper lobe. Right upper lobectomy of the lung was performed. Partial adhesion to parietal pleura of posterior mediastinum and severe adhesion to right upper apicoposterior segment was found during the operation Microscopic and ultrastructural studies(including immunocytochemical stains) of the mass revealed malignant fibrous histiocytoma.
Coal* ; Histiocytoma, Malignant Fibrous* ; Humans ; Lung* ; Male ; Mediastinum ; Middle Aged ; Pleura ; Thorax

BACKGROUND: Doxorubicin is considered to be one of the most effective drugs to treat a variety of human cancers. However, the dose-dependent cardiotoxicity of doxorubicin limits its clinical usefulness. This study aimed to evaluate the effect of probucol and verapamil on the cardiac neurotoxicity and cardiomyopathy induced by the long-term use of doxorubicin. METHODS: Sprague-Dawley male rats were grouped as the control group, the doxorubicin treated group, the doxorubicin treated with probucol group, and the doxorubicin treated with verapamil group. The rats were treated for 4, 6, 8 and 10 weeks. H&E staining and immunohistochemical staining for protein gene product 9.5, caspase-3, heat shock protein 70, and hsp 25 were performed. RESULTS: The degree of interstitial inflammatory cell infiltration was mildest in the probucol treated group. The reduction in the number of nerve fibers in the probucol treated group was less than the other treatment groups. There was a negative correlation between the treatment duration and stained nerve fibers in all the treatment groups. The number of caspase-3 positive cells was more increased in the doxorubicin group and the verapamil treated group than in the control and probucol treated group. CONCLUSION: It is suggested that probucol partly contributed to the inhibition of doxorubicin-induced cardiac neurotoxicity and cardiomyopathy, whereas the verapamil had no effect.
Animals ; Cardiomyopathies ; Caspase 3 ; Doxorubicin* ; Heart* ; HSP70 Heat-Shock Proteins ; Humans ; Male ; Myocardium* ; Nerve Fibers* ; Probucol* ; Rats* ; Rats, Sprague-Dawley ; Verapamil*

No abstract available.
Hemangioblastoma* ; Spinal Cord*

No abstract available.
Staphylococcus aureus* ; Staphylococcus*

The dorsal ulnar cutaneous nerve (DUCN) is the sensory branch of ulnar nerve supplying sensation to the dorsal ulnar aspect of the hand. Isolated DUCN injury is known rare. We report 3 cases of isolated DUCN injury caused by stretch injury and mild blunt injury during activities of daily living. Isolated DUCN injury may more frequently occur than we thought. Nerve conduction study and ultrasonography are useful method to localize the lesion and to evaluate the structural etiology.
Activities of Daily Living* ; Hand ; Methods ; Neural Conduction ; Sensation ; Ulnar Nerve ; Ulnar Neuropathies ; Ultrasonography ; Wounds, Nonpenetrating

No abstract available.
Endometriosis* ; Female

PURPOSE: This study was made to evaluate the clinical characteristics and the treatment of the gangrene of the male genitalia manifested with progressive life threatening disease. MATERIALS AND METHODS: Between June 1992 and December 1998, medical records for patients with Fournier's gangrene were reviewed with respect to age at presentation, associated disease, and clinical course and the treatment. RESULTS: The age of patients ranged from 29 to 92 years. The prodromal sign noted were usually low abdominal and inguinal pain. There were no differences in the causative pathogens compared to those of previous reports. The common underlying diseases were diabetes and chronic liver disease. Hypoalbuminemia and leukocytosis were found in all. Early radical debridement and aggressive antibiotics therapy were performed in all cases. Reconstructive surgery of defected skin was performed 7 to 45 days(mean 33.6) after debridement and period of hospital stay ranged from 14 to 123 days(mean 35.8). The motality rate was 13.3%. CONCLUSIONS: It is thought that the motality rate of Fournier`s gangrene is reduced by early aggresseve debridement of the wound and empirical triple antibiotic therapy, and the comprehension of clinical course is important as well.
Anti-Bacterial Agents ; Comprehension ; Debridement ; Fournier Gangrene ; Gangrene* ; Genitalia, Male ; Humans ; Hypoalbuminemia ; Length of Stay ; Leukocytosis ; Liver Diseases ; Male ; Medical Records ; Prodromal Symptoms ; Skin ; Wounds and Injuries

A 25-year-old woman transferred to pain clinic complaining of severe throbbing eye ball pain, eyelid edema and severe tearing in her left eye under the diagnosis of herpes zoster ophthalmicus that was developed 3months ago. In addtion to conventional medication, she had been taken stellate ganglion block, supraorbital and supratrochlear nerve block to contol of pain, but the response was poor. So we tried to administer ketamine subcutaneously, because not only ketamine, NMDA receptor antagonist, played a significant role to reduce neuropathic pain and pain caused by nerve injury, but also she wanted to work in her office during the treatment. We used subcutaneous ketamine 3 mg/hr (0.06 mg/kg/hr) in patient with postherpetic neuralgia of the ophthalmic nerve, and accomplished almost complete pain relief without any sign of side effect.
Adult ; Diagnosis ; Edema ; Eyelids ; Female ; Herpes Zoster Ophthalmicus ; Humans ; Infusions, Subcutaneous* ; Ketamine* ; N-Methylaspartate ; Nerve Block ; Neuralgia ; Neuralgia, Postherpetic* ; Ophthalmic Nerve* ; Pain Clinics ; Pain Management* ; Stellate Ganglion