No abstract available.
Peptic Ulcer*

BACKGROUND: Hydrofluoric acid(HF) is one of the strong stirritating, corrosive and poisonous inorganic acid, The HF burns are occuring with ever-increa firifrequency due to the wide use of this acid in industrial fields, such as electronics and semicor tor industries. OBJECTIVE: The purpie of this study is to quantiate theound depths produced by varying concentrations of HF aiud to suggest the treatment guideline. METHODS: Uarious cinicentrations of HF(5%, 25%, 50%),were applied to two pairs of test sites on a guinea pig's back in a uniform fashion with cotton-tip applicators and then the histopathologic changes of guinea pig skin were observed. RESULTS: 1, In the 5% HF applied group, intracellular edema vaobserved in the epidermis after 12 hours. After 3days, epidermal cell necrosis was observed. 2. In the 25% HF applied group, intraepidermal vesice was observed after 6hours. After 12hours, inflammatory cell infiltrations were observed in the apper dermis and then after 3days, dermal necrosis was oberved. 3. In the 50% HF applied group, epidermal cell necros After 6hours, liquefaction degeneration in the epidermis an was observed focally after 3hours. iflhmmatory cell infiltrations in the upper dermis were observed. After 2days, dermalar.ecrosis was observed and then after days, the reaction was at its peak and subcutaneous tissuc. necrosis was observed. CONCLUSION: This study showed that a higher concentrator HF exposure enhances The penetration of HF. For treatmi not alcohloic solution of a quarternary ammonium for avintralesional injection of calcium gluconate within 24 hours of HF and a longer period after we suggest wet dressing with an concentration of HF burn and high concentration of HF burn.
Ammonium Compounds ; Animals ; Bandages ; Burns* ; Calcium Gluconate ; Dermis ; Edema ; Epidermis ; Guinea Pigs* ; Guinea* ; Hydrofluoric Acid* ; Necrosis ; Skin

We present herein 3 cases of early secondary syphilis with simultaneous primary syphilitic lesions. These cases developed primary syphilitic lesions four to six weeks after sexual contact and lasted six to ten weeks thereafter until the secondary syphilitic lesions appeared. All three patients showed a strong positive for the STS. Spirochetes were seen under dark field examination of the primary syphilitic lesions, Histopathologically, numerous plasma cells around capillaries and endothelial hyperplasia were seen in the dermis.
Capillaries ; Dermis ; Humans ; Hyperplasia ; Plasma Cells ; Spirochaetales ; Syphilis*

No abstract available.
Diagnosis* ; Molecular Biology* ; Prognosis* ; Stomach Neoplasms*

No abstract available.
Diagnosis* ; Molecular Biology* ; Prognosis* ; Stomach Neoplasms*

We have examined the regenerative capabilities of the human scalp hair follicle after grafting the lower half of the follicle. Twenty-eight of 32 intact whole-hair follicles isolated from the human scalp regenerated hairs when grafted onto the forehead of the same person. Seven of the 15 lower-half follicles regenerated complete hair follicles 8 months after grafting showed that the lower-half follicle implant reconstituted the complete hair follicle. The sebaceous gland was not regenerated, but there was an outgrowth in the sebaceous gland regPark ion. Some grafts formed epithelial cysts. Two years after grafting, the histological examination of the regenerated follicle from the lower-half implant showed that the sebaceous gland was completely regenerated. While an intact follicle shows prominent naked shaft outgPark Park Parkrowth, the sheath grows concomitantly with the shaft in lower-half follicles in culture. If grafted lower-half follicles were located too deep, the regrown sheath could not reach the epidermal layer. In this situation, the formation of an epidermal cyst was likely.
Epidermal Cyst ; Forehead ; Hair Follicle* ; Hair* ; Humans ; Scalp ; Sebaceous Glands ; Transplants*

No abstract available.
Kidney Transplantation*

Several observation suggest that the antimelanocyte autoantibodies could play a role in melanocyte destruction. Some experiments indicate that melanocyte antibodies from patients with vitiligo can kill melanocyte in vitro. In these experiments, we demonstrated that vitiligo patient's sera containing antimelanocyte antibodies can lyse cultured human melanocytes by complement activation. Melanocyte cytotoxicity was measured using the ethidium bromide/ acridine orange viability assay. Significant melanocyte cytotoxicity was seen in sera from patients with both active and inactive vitiligo(p<0.01). Melanocyte cytotoxicity measured with complement-mediated cytotoxicity decreased after systemic steroid treatment(p<0.05) ; however melanocyte cytotoxicity showed no significant change with systemic PUVA therapy.
Acridine Orange ; Antibodies ; Autoantibodies* ; Complement Activation ; Ethidium ; Humans ; Melanocytes ; PUVA Therapy ; Vitiligo*

The present study has been undertaken, using 307 seemingly "normal" male rabbits sold in Korea, which were tested for sysphilis with two serologic tests, the RPR card test and the TPHA test. Among thc rabbits which were seropositive in these tests, 10 rabbits were selected for further tests, namely, the FTA test a.nd FTA-ABS test. The following results have been obtained. Nine rabbits(2.9%) were reactive in both the RPR card test and the TPHA test; 10(3.2%) were reactive in the RPR card test and non-reactive in the TPHA test; 8(2. 6%) were reactive in the TPHA test and non-reactive in the RPR card test, and 27(8.7%) were reactive in either tests. 2. The rabbits which were reactive in the TPHA test were also reactive in the FTA and FTA-ABS test. As can be seen in the results, 8.7% of the normal male rabbits sold in Korea are seropositive in the serologic tests for syphilis. Cnnsequently, all rabbit's undergoing syphilis experiments should be screened for possible reactive serologic tests and excluded from the experiments.
Dronabinol ; Fluorescent Treponemal Antibody-Absorption Test ; Humans ; Korea* ; Male* ; Rabbits* ; Serologic Tests* ; Syphilis*

Impetigo herpetiformis is a rare pustular disorder that primarily affects pregnant women. A 31 year-old woman at 37 weeks and 4 days' gestation of 3rd pregnancy presented with pruritic multiple erythematous pustules and crusts on the trunk and both antecubital fossa for 3 months. She had had similar lesions in her 1st and 2nd pregnancy, which subsided after delivery without any fetal or maternal complication. She had no personal or familial history of psoriasis. Histopathologic findings showed subcorneal pustules with numerous neutrophils and spongiform pustule of Kogoj. Bacterial culture from pustules was sterile. After Caesarean section at 38 weeks' gestation, a healthy female neonate was delivered and her skin lesion resolved spontaneously.
Cesarean Section ; Female ; Humans ; Impetigo* ; Infant, Newborn ; Neutrophils ; Pregnancy ; Pregnant Women ; Psoriasis ; Skin