No abstract available.

No abstract available.
Emergencies* ; Emergency Service, Hospital*

Ischemia causes tissue necrosis in a wide variety of pathologic conditions. Permanent deprivation of blood flow is lethal to any tissue and the prudent therapy for ischemia unquestionably is reperfusion. While reperfusion is necessary to reverse the progression towards ischemic death, reperfusion is also thought to be accompanied by its own component of injury. Oxygen free radicals, formed during ischemia/reperfusion, have been proposed as one of the main causes of reperfusion injury. Free radical attacks on biological membrane, such as mitochondria and endoplasmic reticulum, and can lead to the oxidative destruction of the polyunsaturated fatty acids of the membranes through lipid peroxidation. However, direct association between microsomal lipid peroxidation in vivo after ischemia/reperfusion and changes in secretory function and drug metabolism on the liver have not been established. Therefore, present study was performed to evaluate the hepatic secretory function and the hepatic microsomal drug metabolizing enzyme activity after ischemia/reperfusion preparation in rat liver. Further, the effect of oxygen free radical scavengers was investigated. The animals were divided into sham operation group and ischemia/reperfusion group. The ischemia/reperfusion group was subdivided into non-treated control and treated (with superoxide dismutase, allopurinol, alpha-tocopherol, deferoxamine) groups. Hepatic ischemia was produced by clamping the left branches of portal vein and hepatic artery, resulting in complete ischemia to the median and left lobes while the right lobes remained per Fused to prevent intestinal congestion. Reperfusion was permitted by declamping after 1 hour. After 1 or 5 hours of reperfusion, bile was collected, blood was obtained from abdominal aorta, and liver microsomes were isolated. The results are as follows. Serum aminotransferase was increased 15~20 times by ischemia/reperfusion. However, this increase was attenuated by free radical scavengers, especially 5 hours of reperfusion. The wet weight-to-dry weight ratio of the liver was significantly increased by ischemia/reperfusion. alpha-tocopherol pretreatment minimized the increase of ratio. Malondialdehyde level in the liver microsomal fraction was significantly increased after ischemia/reperfusion, but this increase was attenuated by scavenger pretreatment, especially alpha-tocopherol. Bile flow and cholate output but not the bilirubin output, were decreased after ischemia/reperfusion. The free radical scavenger pretreahnent restored the secretion significantly. Cytochrome P-450 content was significantly decreased after ischemia/reperfusion and ameliorated by free radical scavenger pretreatment. NADPH cytochrome P-450 reductase activity and aminopyrine N-demethylase activity were also decreased and improved by free radical scavengers pretreatment. These results indicate that ischemia/reperfusion deteriorates the hepatic secretory function as well as hepatic microsomal drug metabolizing enzyme activity, and the oxygen free radical scavengers attenuate the functional changes of the liver induced by ischemia/reperfusion.
Allopurinol ; alpha-Tocopherol ; Aminopyrine N-Demethylase ; Animals ; Aorta, Abdominal ; Bile ; Bilirubin ; Cholates ; Constriction ; Cytochrome P-450 Enzyme System ; Endoplasmic Reticulum ; Estrogens, Conjugated (USP) ; Fatty Acids, Unsaturated ; Free Radical Scavengers ; Free Radicals ; Hepatic Artery ; Ischemia ; Lipid Peroxidation ; Liver ; Malondialdehyde ; Membranes ; Metabolism* ; Microsomes, Liver ; Mitochondria ; NADPH-Ferrihemoprotein Reductase ; Necrosis ; Oxygen ; Portal Vein ; Rats* ; Reperfusion ; Reperfusion Injury ; Superoxide Dismutase

A 22-year-old-male patient has numerous brownish-black, soft follicular papules which compatible with acne are scattered on the chest, scapular regions, back and buttocks for 4 5 years duration. Biopsy specimen revealed cystic structures in the mid-dermis lined by squamous cell epithelium w4ich contained laminated keratinous material and varying number of vellus hairs, histopathologically, compatible with diagnosis of eruptive vellus hair cysts. Related literatures and histogenesis were discussed,
Acne Vulgaris ; Biopsy ; Buttocks ; Diagnosis ; Epithelium ; Hair* ; Humans ; Thorax

Aneurysmal benign fibrous histiocytoma(ABFH) is a relatively rare variant and has a distinctive histopathological features, that is collections of capillaries, foci of hemorrhage, siderophages, and foamy macrophages surrounding cleft-like and cavernous blood filled spaces in the tumor. But, in spite af the distinctive features, it is not infrequently confused with malignant melanoma, angiomatoid malignant fibrous histiocytoma, and vascular tumors such as spindle cell hemangioendothelioma, nodular Kaposi's sarcoma and angiosarcoma. We report a case of ABFH developed on the left upper extremity of a 41-year-old man.
Adult ; Aneurysm* ; Capillaries ; Hemangioendothelioma ; Hemangiosarcoma ; Hemorrhage ; Histiocytoma, Benign Fibrous* ; Histiocytoma, Malignant Fibrous ; Humans ; Macrophages ; Melanoma ; Sarcoma, Kaposi ; Upper Extremity

Isolated infernal iliac artery aneurysms and rupture are relatively infrequent, often difficult to detect and therefore rarely considered in the differential diagnosis for abdominal pain. The consequences can be grave, The incidence of isolated iliac artery aneurysm is 1~2% of that of abdominal aortic aneurysm(AAA). The natural history is of gradual enlargement, with rupture the most common clinical presentation. The signs and symptoms of such an aneurysm are influenced by its concealed location within the bony pelvis. Awareness of these special characteristics improves the chances of early diagnosis and proper surgical treatment before possible rupture. Here is a case of ruptured aneurysm of left internal iliad artery. A 73-year-old man was presented to our emergency center with severe abdominal pain and voiding difficulty Abdominal Computed Tomography(Cf) and angiography showed ruptured aneurysm of left infernal iliad artery. Emergency operation was successfully performed for the ruptured internal iliad artery aneurysm.
Abdominal Pain ; Aged ; Aneurysm* ; Aneurysm, Ruptured ; Angiography ; Arteries ; Diagnosis, Differential ; Early Diagnosis ; Emergencies ; Humans ; Iliac Artery* ; Incidence ; Natural History ; Pelvis ; Rupture ; Rupture, Spontaneous*

Pityriasis rotunda is characterized by perfectly circular to oval brownish scaly patch on the trunk and extremities. This disease is considered to be a form of acquired ichtkyosis of unknown etiology and develops usually in association with certain systemic diseases, such as tuberculosis, malignant neoplasrn, leprosy, ovarian cyst and uterine myoma etc, We experienced 2 cases of pityriasis rotunda on the abdomen, chest and back associated with liver cirrhosis in 66 year old man 43 year old woman and clinical presentation was made with review of related literatures.
Abdomen ; Adult ; Aged ; Extremities ; Female ; Humans ; Leiomyoma ; Leprosy ; Liver Cirrhosis* ; Liver* ; Ovarian Cysts ; Pityriasis* ; Thorax ; Tuberculosis

No abstract available.
Dermatitis, Atopic* ; Humans ; Immunoglobulin E*

No abstract available.
Emergencies* ; Emergency Service, Hospital* ; Violence*

No abstract available.
Cholangitis, Sclerosing*