As an attempt to evaluate any possible effects of dimethylsulfoxide (DMSO) on the phenomena of membrane transport, effects on the short-circuit current (SCC) and potential difference (PD) across the isolated frog skin were studied under the conditions of various bathing medium, Changes of SCC and PD were measured by the method described by Ussing and Zerahn. Addition of DMSO to the inside bathing medium resulted in an initial increase in SCC followed by a secondary decline to pre-DMSO level, while DMSO at outside medium was without effect. Dose-responses(SCC) relationship revealed a linear one from 30 to 60 mM. Substitution of chloride by sulfate ion from bathing medium caused no alteration in the basic pattern and magnitude of response, thus indicating the specificity of DMSO action on the Na transport. Hypertonic solutions of DMSO added to either outer or inner bathing medium evoked a prompt fall in SCC and PD consistently. By isotopic measurement of sodium fluxes with Na24, it was evident that increased sodium influx was entirely responsible for the initial increase in SCC induced by DMSO. Of various parameters concerned with transepithelial Na transport, outer membrane permeability to Na (PoNa) was shown to be the onIy parameter which was significantly elevated by DMSO administration. From these findings, it was postulated that DMSO-induced increment in sodium influx was mediated by its stimulating action on the sodium penctration through the outer permeability barricr after binding to a receptor site different from that for the antidiuretic hormone (ADH.)
Baths ; Dimethyl Sulfoxide* ; Hypertonic Solutions ; Membranes ; Permeability ; Sensitivity and Specificity ; Skin* ; Sodium*

Clinicalstudies on thirty patients with lichen planus seen during the past 9 years from 1968 to 1976 at the Department of Dermatology, Busan National University Hospital were ma,de;particularly, varied clinical types of the disease and significance of histological findings were emphasized. The results obtained were as follows; 1. The incidence of lichen planus was 0.17% patients to total number of dermatologic 2. There were 19 males and 11 females in this series. The age at the first visit varied from 16 years to 71 years, and the pitients between 21 and 50 years occupied 76.7% of all. 3. The most common site of the initial lesion was extremities(66.7%), and flexor surface was rather common than extensor surface. And lesions of trunk, oral mucosa, extemal genitalia were also noticed. 4. The most common clinical type was chronic localized type(11), and hypertrophic type(4), Iichen planus of mucous membrane(4), annular type(4), acute widesprearead type(3), vesicobulIous type(2), linear type(2), follicular type(l) were also noticed. 5. Pruritus developed in 22 patints(73.3%) an@d Koebners phenomenon was noticed only in R cases(10%). 6. Histopathological examination of 25 biopsy specimens showed epidermal changes of hyperkeratosis(24), acanthosis(22), hypergranulosis(21), elongation of rete ridge(8) and liquefaction degeneration of hasal cells(25). Dermal changes include bandlike infiltration of infIammatory cells(24), melanophages in upper dermis(18), colloid or eosinophilic body(9), and dermo-epidermal separation(3).
Biopsy ; Busan ; Colloids ; Dermatology ; Eosinophils ; Female ; Genitalia ; Humans ; Incidence ; Lichen Planus* ; Lichens* ; Male ; Mouth Mucosa ; Pruritus

No abstract available.
Adenocarcinoma*

No abstract available.
Cryptococcus neoformans* ; Cryptococcus* ; Interleukin-2* ; Lymphocytes*

No abstract available.
Sinus of Valsalva*

Atrophie blanche which was first described by Milian in 1929 is a sistinct entity and not a variation of stasis dermatitis. We reported a case of atrophie blanche which occurred in 21 year-old female. She had erythematous patches, telangiectaic purpuric areas, small 1 to 2mm ectasias suggestive of small angiomas with central ulcer, pustules and crusts on both lower legs and dorsa of feet without severe painful sensation. Histopathologic findings showed endothelial proliferation of the capillary blood vessele of dermis, presence of fibrinoid material on the superficial blood vessels and storma, and infarction of the epidermis and superficial corium. Response to treatment was not satisfactory with antibiotics and corticosteroid.
Anti-Bacterial Agents ; Blood Vessels ; Capillaries ; Dermatitis ; Dermis ; Dilatation, Pathologic ; Epidermis ; Female ; Foot ; Hemangioma ; Humans ; Infarction ; Leg ; Sensation ; Ulcer ; Young Adult

No abstract available.
Animals ; Interleukin-2* ; Interleukin-6* ; Mice* ; Pseudomonas aeruginosa* ; Pseudomonas*

No abstract available.
Cesarean Section* ; Female ; Pregnancy

No abstract available.
Spine* ; United Nations*

PURPOSE: The incidence of urolithiasis has recently shown an increasing tendency in relation to improvements in living conditions in Korea. With the development of extracorporeal shock wave lithotriptor (ESWL), endourology and other new instruments, urolithiasis has become easier to treat, without surgical intervention. The incidence and treatment of urolithiasis, between the 1980 and 2000, were evaluated. MATERIALS AND METHODS: 328 and 1,142 patients with urolithiasis, either admitted between January 1981 and December 1984 or treated at the out-patient clinic between January 2001 and December 2004, respectively, were analyzed. RESULTS: In the early 1980s, 328 (27.3%) patients of the total 1,203 admitted to the urology department had urolithiasis. In the early 2000s, 1,142 patients were treated for urolithiasis. The total number and incidence constantly increased over the stated period. The ratio of males to females was 1.3:1 in the 1980s and 2.0:1 in the 2000s. The occurrence rate for those under 20 years decreased, but increased after the 6th decade. And the seasonal occurrence was highest during the summer of the early 1980s, but there was no seasonal difference during the early 2000s. The incidences of lower ureteral, bladder and urethral calculi were decreased, but those of renal and upper ureteral calculi increased. In the management of urolithiasis, open surgery and expectant therapy decreased during the 2000s. In the endourological management of urolithiasis, the success rates of ESWL, percutaneous nephrolithotomy (PNL) and ureteroscopic removal of stone (URS) were 94.5, 86.6 and 96.4%, respectively. CONCLUSIONS: The incidence and treatment modalities of urolithiasis have changed, especially since the late 1980s.
Calculi ; Female ; Humans ; Incidence* ; Korea ; Male ; Nephrostomy, Percutaneous ; Outpatients ; Seasons ; Shock ; Social Conditions ; Ureter ; Ureteral Calculi ; Urinary Bladder ; Urolithiasis* ; Urology