No abstract available.

OBJECTIVES: Cell adhesion molecules may play a role in integrating amnionic membrane. The objective of this study was to prove E-cadherin mRNA and proteins in cultured human amnionic cells. METHODS: We cultured amnionic cells from 4 women undergoing cesarean section without labor. E-cadherin was determined by immunohistochemistry and Western ligend blotting. To demonstrate E-cadherin mRNA, reverse transcription-polymerase chain reaction was performed. RESULTS: On immunohistochemistry, E-cadherin was abundantly showed on the cytoplasm of the cells. Western ligend blotting showed clear 120 kDa bands on four specimens, and relatively weak band on one specimen. Reverse transcription-polymerase chain reaction showed 432 BP bands. CONCLUSION: We proved E-cadherin and its mRNA by immunohistochemistry, Western ligend blotting and reverse transcription-polymerase chain reaction in cultured human amnionic cells.
Amnion* ; Cadherins* ; Cell Adhesion Molecules ; Cesarean Section ; Cytoplasm ; Female ; Humans ; Immunohistochemistry ; Membranes ; Pregnancy ; RNA, Messenger

From january 1968 to Septomber 1977(approximately 10 years) the authors clinically observed 105 cases of malignant curaneous tumors that visited the Department of Dermatology at Chon-nam University Hospital. The results obtained can be summarized as follows: 1) The incidence of curaneous malignat tumors versus the total number of outpatients visitiong the Department of Dermatology was 0.33 2) The age of onset was quite varied but the majority of cases, 71 cases(67.62%), were over 50 years old. #) The ratio of men to women was 1.56:1. 4) Among the 105 cases of malignant cutaneous tumors the most frequently observed type was squamous cell carcinoma, 40 cases(40.0%) The next most frequent rypes were basal cell carcinoma, 19 cases (18.10%) and malgnant melanoma, 12cases(11.43%) 5) The most common predilection sites were the head and neck in which 55cases(52.38%) were observed. Among these cases the face was most commonly affected, 40 cases(38.10%). The predilection sites of the basal cell carcinoma cases were the nose(47.37%), cheek(21.04%) and eyelid(15.79%). Those of the squamous cell carcinoma cases were the lower lip(26.90%), cheek(24,43) and penis(14,29%). Finally that of the malignant melanoma was the plantar surface(58.34%) 6) We observed metastasis only in wquamous cell carcinoma, Among the 42 cases of squamous cell carcinoma seen, I1 cases showed metastasis, Among these I1 cases of metastasis, 9 cases were metastajzed into the regional lymphnodes, and in 3 cases methstsis to the lung was demonstracted. 7) We found no relationship between the presence of a particular kind of original skin lesion or injury and the development of a cutaneous malignant tumor. some original lesions related to the curaneous malignant tumors we mentosem, radiation, sporotrichosis, neurofibromatosis, etc. 8) One or more of the four following methods of treatment were used on 19 of the observed cases: 1) Surgical Operation 2) Irradiation Therapy. 3) Electrosugery, 4) Chemotherapy, In seven cases(Basal cell carcinoma 5 cases, Squamous cell carcinoma 2 cases) a complete cure was seen, while in five cases(Kaposi's sarcoma 1, case Squamous cell carcinoms 4 cases) the curaneout maligant tumor recurred No improvement was demonstrated in two (Squamous cell carcinoma 1 case, Malignant melanoma 1 case) of the cases and in four cases(Squamous cell carcinoma 3 cases, Malignant Melanoma 1 case) no prognosis could be made because the patients did nor retum to the clinic to complete treatment.
Age of Onset ; Carcinoma, Basal Cell ; Carcinoma, Squamous Cell ; Dermatology ; Drug Therapy ; Female ; Head ; Humans ; Incidence ; Lung ; Male ; Melanoma ; Middle Aged ; Neck ; Neoplasm Metastasis ; Neurofibromatoses ; Outpatients ; Prognosis ; Sarcoma ; Skin ; Sporotrichosis

This study was undertaken to know whether the UV-irradiation of the skin causes changes in the superoxide dismutase(SOD) activities. After shaving, the back skin of the rabbit was irradiated with UV light ranging from 280 to 320 nm of wavelengths from Burdick lamb (UV800) in doses of either 0.5, 1.0 or l.5 J/cm2. The skin was removed imrnediately after irradiation and the enzyme activity was assayed by the method of McCord ad Fridovich (xanthine-xanthie oxidase system), One unit of the SOD activity was defined as the amount of the enzyme required to inhibit the rate of reduction of cytochrome c by 50%. The protein content of the enzyme was determined by biuret method. The SOD activity of the skin irradiated with 1.0 J/cm was 7. 78 + 1.62 unit/mg protein(Mean+SD; n=10), significantly higher than that of the control(nonirradiated) group(5.62+1.57 unit/mg protein; n=l0). No significant changes were found in the skins irradiated with 1.5 and 1.5 J/cm. This finding indicates that UV irradiation is capablc of increasing the SOD activitiea in the rabbit skin, and suggests that increased superoxide formed by UV irradiatiun induces the increased SOD activies.
Biuret ; Cytochromes c ; Oxidoreductases ; Skin* ; Superoxide Dismutase* ; Superoxides* ; Ultraviolet Rays

We studied skin thickness of the twelve body sites in 25 post-mortem subjects. The most thinnest and thickest sites of the skin layers are as follows(unit: um) l. In the horny layer, eyelid(13.16+/-5.44) and sole(420.83+182. 25), respectively 2. In the granular, eyelid, posterior ear, abdomen, back, thigh, forearrn(1 layer)and sole(3.4+/-0.59 layers), respectively 3. In the prickle cell layer(to rete ridge), forearm(50. 21+/-15. 36) and sole (174.72+/-84.41), respectively 4. In the prickle cell layer(to papillary dermis), abdomen (33. 05+/-10. 28) and sole (106.13+/-73.62), respectively 5. In the epidermis, eyelid (61.60+/-16.53) and sole (972.00+/-228. 16), rpspectively 6. In the dermis, eyelid(878.08+283. 56) and back(3596.05+/-1306.80), respectively.
Abdomen ; Dermis ; Ear ; Epidermis ; Eyelids ; Skin* ; Thigh

No abstract available.

Neurilemmomatosis is a clinical entity consisting of multiple cutaneous neurilemmomas, central nervous system tumors, and neurologic disorders. Since Shishiba et al first described the disorder in 1984, several cases have been reported. We report a Korean case of neurilemmomatosis showing multiple neurilemmomas of the skin and spinal cord, with associated motor and sonsory nerve disturbance. Histologic, immunohistopathologic and electron microscopic studies confirmed the diagnosis.
Central Nervous System Neoplasms ; Diagnosis ; Nervous System Diseases ; Neurilemmoma ; Skin ; Spinal Cord

No abstract available.
Animals ; Lipid Peroxides ; Mice* ; Skin*

The epithelioid angiosarcoma is recently described ns a variant of ang-osarcoma based on its pathological feature, which is characterized by the epithelioid or histiocytoid morphology af the malignant tumor cells. The existence of vascular endothelial tumor with an epithelioid feature has been accepted for many years, most notablyn the forms of epithelioid hemangioma and epithelioid hemangioendo thelioma. In recent years, cutaneous angiosarcoma with epitheloid morphology have been reported as a cutaneos epithelioid angiosarcoma in the literatures. A 60-year-old man presente with a mild tender erythematous 2 x 2 x 2.5cm sized soft fluctuating single nodule with dark hemorrhagic crust on the left forehead for 3 months. He had had an abrasion wound on the lesion site of the forehead by an accidental trauma 5 month before the lesion appeared. Histopathological findings revealed that the tumor mass was chiefly composed of solid sheets of poorly differentiated malignant cells with an epithelioid feature. The characteristics of classical angiosarcoma such as primitive vascular spaces and clefts with malignat cells, and proliferating vessels were also found in some areas. The immunohistochemical stain wi.h the factor VIII related antigen ivas focally reactive in the tumor cells. Unfortunately he refused further treatment and expired 7 months after discharge at home without knowing the direct cause of his health. We report herein an interesting and rare case of the cutaneous epitheioid angiosarcoma which had typical clinical and histopathological findings and suggested as a case with a very aggressive course.
Forehead ; Hemangioma ; Hemangiosarcoma* ; Humans ; Middle Aged ; von Willebrand Factor ; Wounds and Injuries

No abstract available.
Hemorrhoids*