Two isotypes of nm23 gene have been reported as multifunctional genes as well as CD44 gene. In tumor, both of genes, one isotype of human nm23, nm23-H1 and splice variants of surface glycoprotein CD44[CD44 v8-10], are correlated with tumor growth and metatastic potential[Keim et al., 1992 ; Dall et al., 1995]. However, the correlation of expression between these genes in tumor was not reported. In this immunohistochemical study on skin cancers, basal cell carcinoma, squamous cell carcinoma, and malignant melanoma, we intended to clarify the differences of expression on the basis of origins of skin tumors, basal cell, prickle cell, melanin producing cell, and compare the alterations of expressions between two genes in each tumor, respectively. The conclusion of this comparison is that relative parallel alteration in expressions between nm23-H1/NDP kinase and CD44 v8-10 was observed in basal cell carcinoma and malignant melanoma with inverse relation in differentiation. In squamous carcinoma, the expressions of two genes were much associated with differentiation. On the periphery of tumor, very low level of nm23-H1 protein and high level of CD44 v8-10 protein were detected.
Carcinoma, Basal Cell ; Carcinoma, Squamous Cell ; Humans* ; Melanins ; Melanoma ; Membrane Glycoproteins ; Phosphotransferases* ; Skin Neoplasms* ; Skin*

PURPOSE: Various vasopressor agents are used to raise systemic vascular resistance (SVR) during liver transplantation. After grafted liver was reperfused, postreperfusion syndrome could be treated with various vasopressors. However, epinephrine can decrease the splanchnic perfusion and oxygen saturation and then hepatic blood flow would be jeopardized. Decreased hepatic blood flow might result in centrilobular necrosis which contributes to disruption of liver functions. We tried to know the effect of epinephrine on tissue perfusion of the liver. METHODS: In this study, measurement of hepatic microcirculation (HMC) and hemodynamic changes was performed in eight dogs to investigate the effect of vasopressors on hepatic microcirculation. Animals were divided into four groups in which low-dose epinephrine (0.05mug/Kg/min) and high-dose epinephrine (0.5mug/Kg/min) were randomly infused into the systemic vein and portal vein (1/6 of systemic dose) for ten minutes. Hepatic microcirculation was measured by Thermal Diffusion Probe. RESULTS: At low-dose systemic infusion of epinephrine, mean arterial bloodpressure (MABP), cardiac output (CO), and hepatic microcirculation (HMC) were significantly increased but systemic vascular resistance (SVR) was decreased. On high-dose epinephrine, MABP, CO (P=0.01), and SVR were significantly increased without changes of HMC. Intraportal infusion of low- and high-dose epinephrine increased hepatic vein pressure and SVR, respectively. CONCLUSION: These results would provide clues that systemic low-dose epinephrine infusion is enough to raise HMC and high-dose infusion of epinephrine to raise SVR could be used without jeopardizing HMC.
Animals ; Cardiac Output ; Dogs ; Epinephrine ; Hemodynamics ; Hepatic Veins ; Liver ; Liver Transplantation ; Microcirculation* ; Necrosis ; Oxygen ; Perfusion ; Portal Vein ; Thermal Diffusion* ; Transplants ; Vascular Resistance ; Vasoconstrictor Agents ; Veins

The incidence of severe hepatitis A virus (HAV) infection has been increasing. However, clinicopathologic features of severe HAV infection that lead to liver transplantation (LT) have not been reported in Korea. We retrieved 16 LT cases with HAV infection during the last 3 years at Asan Medical Center, Seoul, Korea. Fifteen cases progressed to hepatic encephalopathy. Thirteen cases survived with or without complications, and three patients died of sepsis. The explanted liver showed massive or zonal necrosis with moderate to severe cholestasis. The zonal distribution of necrosis was frequently associated with endothelialitis of portal and/or central veins. Degenerative changes of hepatocytes were various in degree and distribution. Viral inclusions were suspected in two cases. Although HAV infection is usually confirmed by serological tests, significant venulitis of central and/or portal veins and viral inclusions, which are rarely observed, can suggest an HAV infection as a cause of massive hepatic necrosis of unknown mechanism.
Cholestasis ; Fluconazole ; Hepatic Encephalopathy ; Hepatitis ; Hepatitis A ; Hepatitis A virus ; Hepatocytes ; Humans ; Incidence ; Korea ; Liver ; Liver Transplantation ; Massive Hepatic Necrosis ; Necrosis ; Portal Vein ; Sepsis ; Serologic Tests ; Veins

BACKGROUND: Depressive symptoms are common in the medically ill patients although depressive disorders are considerably underdiagnosed and undertreated. Therefore, we examined the characteristics of depressive tendency in medical inpatients. METHODS: The patient group-144 subj.cts(90 males, 54 females) were selected from medical inpatients of Kae Jung hospital. 158 subjects(106 male, 52 females) with no prior history of diseases were selected for the control group. The Beck Depression Inventory(BDI) and Hamilton Rating Scale for Depression(HRSD) was used for both groups from June to December 1997. RESULTS: The patient group had a significant higher BDI and HRSD score than controls(p<0.01). In the patients, 31.3% had scores on the BDI greater than the cutting score of 21, and 26.4% had scores on the HRSD greater than the cutting score of 22. In the patients, demographic and medical variables were evaluated with respect to depression. those in their 60's, with education level of elementary school and below. the divorced, bereaved and separated, and having duration of illness more than one year were statistically more depressed, but depression was not associated with sex, religion and medical diagnosis. CONCLUSIONS: This study indicates that depressive tendency may be a common phenomena in medically ill patients. Therefore, we should suspect depression in the management of these patients.
Depression ; Depressive Disorder ; Diagnosis ; Divorce ; Education ; Humans ; Inpatients* ; Male

No abstract available.
Animals ; Female ; Horns* ; Humans ; Uterus*

No abstract available.
Polycystic Kidney Diseases* ; Ultrasonography*

No abstract available.
Thrombocytopenia, Neonatal Alloimmune*

No abstract available.
Thrombocytopenia, Neonatal Alloimmune*

Primary gastric actinomycosis is an extremely rare disease and less than 20 cases are reported in literature. We experienced a case of gastric actinomycosis in the 63-year-old woman who had subtotal gastrectomy for early gastric cancer(type IIc) 7 month ago. Endoscopic biopsy from elevated lesion on stoma was found to show the neutrophilic infiltration and sulfur granule. She placed on tetracycline for 30 days. Follow up endoscopy showed no abnormality. We report this case with literature review. (Koresn J Gastrointest Endosc 18: 757~ 760, 1996)
Actinomycosis ; Biopsy ; Endoscopy ; Female ; Follow-Up Studies ; Gastrectomy* ; Humans ; Middle Aged ; Neutrophils ; Rare Diseases ; Stomach Neoplasms* ; Sulfur ; Tetracycline

PURPOSE: To report two cases that showed clinical findings of recurrent keratoconus following penetrating keratoplasty. METHODS: A 39 year-old male and a 34 year-old female developed clinical signs of recurrent keratoconus in his left and her right eye 3 and 8 years after keratoplasty, respectively, and he underwent successful corneal regrafting. RESULTS: We confirmed recurrence of keratoconus histopathologically through the examination of the cornea of the recipient who underwent corneal regrafting and chromosomal study showed mosaicism, 47,XXY/46,XY. CONCLUSION: We report the histopathologic feature of one case of recurrent keratoconus for the first time in Korea.
Adult ; Cornea ; Corneal Transplantation ; Female ; Humans ; Keratoconus* ; Keratoplasty, Penetrating ; Korea ; Male ; Mosaicism ; Recurrence