The effect of alloxan-diabetic rat fed with normal, high fat, low protein and high protein diets on the rate of urea production and the activities of enzymes associated with the urea cycle (ornithine transcarbamoylase, E.C. 2.1.3.3, OTC; arginase, E.C. 3.5.5.1) have been studied in intact and isolated perfused liver. The amount of urea excretion was the highest in the high protein diet group. When each diet group was treated with alloxan, total urea excretion showed little differences between each diet group and its corresponding control group with the exception being in the normal diet group. However, the enzyme activity of OTC was increased significantly by alloxan treatment in low and high protein diet groups as compared to corresponding control groups. Similar results were obtained in arginase activity, although the magnitude of the change was less marked. In liver perfusion experiments on rats treated with alloxan, the amount of urea production and changes in OTC and arginase activity were very similar with those in the intact liver. These results suggest that alloxan treatment in normal diet group causes an increase in urea excretion both in intact and perfused liver regardless of changes in enzyme activities and total urea excretion, and enzyme activities are affected by changes in dietary components but the changes of enzyme activities may not correlate with total urea excretion.
Alloxan ; Animal ; Diabetes Mellitus, Experimental/metabolism* ; Dietary Fats/pharmacology* ; Dietary Proteins/pharmacology* ; In Vitro ; Liver/metabolism* ; Male ; Perfusion ; Rats ; Urea/metabolism* ; Urea/urine

No abstract available.
POEMS Syndrome*

We reviewed 49 cases of moderate or severe pericardial effusion on which we performed pericardiocentesis and percutaneous pericardial biopsy from Jan. 1987 to Sep. 1989. Of these, 11 cases were performed percutaneous pericardial biopsy in order to diagnose confirmative. We studied clinical manifestation including physical examination, ECG, and radiology, etiology and complication of pericardiocentesis and percutaneous pericardial biopsy. The results are as belows : 1) The physical examination of pericardial effusion were neck vein engorgement(73.5%), priction rub(25.5%), and pulsus paradoxus(4%). The ECG findings were low voltage(77.6%) and electrical alternans(16.5%), and most common x-ray finding was cardiomegaly (81.6%). 2) Underlying diseases were as follows : neoplastic disease(40.8%), tuberculosis(18.4%) systemic lupus erythematosus(10.2%), hemopericardium(8.2%), chronic renal failure(6.1%), congestive heart failure(4.1%), idiopathic pericarditis(4.1%), GVHD(2.0%), pyopericardium(2.0%), rheumatic carditis(2.0%), and postpericardiotomy syndrome(2.0%), in order. 3) Special etiologic diagnosis of neoplasm were lung cancer(50%), adenocarcinoma of unknown origin(20%), Malignant lymphoma(15%), stomach cancer(5%), hepatoma(5%), and malignant thymoma(5%), in order. From the percutaneous pericardial biopsy, the authors confirmed 36% by finding two cases of malignancy and two cases of tuberculosis. On the other hand, only one case was confirmed in cytology. These result in a rather low rate of diagnostic confirm. There were 8 cases of complication : hypotension(8.2%), premature ventricular contraction(6.1%) and ventricular tachycardia (2.0%) without death cases. In percutaneous pericardial biopsy, only two cases of hypotension were found with no death case. The result obtained from the above 11 cases of percutanous pericardial biopsy is not enough to make conclusive statement concerning rate of diagnostic confirmation and complication. We expect better results by examining more cases in the future.
Adenocarcinoma ; Biopsy* ; Cardiomegaly ; Diagnosis ; Electrocardiography ; Estrogens, Conjugated (USP) ; Hand ; Heart ; Humans ; Hypotension ; Lung ; Neck ; Pericardial Effusion ; Pericardiocentesis* ; Physical Examination ; Stomach ; Tachycardia, Ventricular ; Tuberculosis ; Veins

No abstract available.
46, XY Disorders of Sex Development* ; Humans ; Male*

BACKGROUND: This study investigated the effects of total knee arthroplasty (TKA) on bone mineral density (BMD) of the proximal femur in patients who underwent the procedure. METHODS: Forty-eight patients scheduled to undergo unilateral TKA because of primary knee osteoarthritis were included in this study, which was conducted at a medical center between October 2006 and October 2009. In these 48 patients, 96 hips were evaluated. Measurement of BMD was performed preoperatively and one month, three months, six months, and one year after unilateral TKA. Repeated measured analysis of variance and paired t-tests for comparison of two repeated samples were used to compare differences between time points (preoperation, one, three, six, and 12 months) and between the operative and nonoperative sides. RESULTS: Preoperatively, BMD of the femoral neck, trochanter, and total hip on the operative side were lower than on the nonoperative side; however, there was no statistical difference. BMD of both femoral neck areas was significantly lower than preoperative BMD at one month and three months after TKA. BMD of both trochanter areas was significantly lower than preoperative BMD at one month and three months after TKA. BMD of both total hips was significantly lower than preoperative BMD at three months after TKA. However, no statistical differences of changes in BMD were observed between the operative and nonoperative sides at each measurement time. CONCLUSIONS: According to our results, TKA was found to affect both proximal femurs during the acute period. However, TKA did not affect a change in BMD of the proximal femur during one year postoperative.
Aged ; Arthroplasty, Replacement, Knee/*adverse effects ; Bone Density/*physiology ; Female ; Femur Neck/*physiopathology ; Follow-Up Studies ; Humans ; Male ; Middle Aged

No abstract available.
Multiple Endocrine Neoplasia*

No abstract available.
Humans ; Insulin Resistance* ; Insulin*

Carotid body tumor is a rare lesion of the neuroendocrine system. It typically presents as a slow growing, painless neck mass found along the anterior border of the sternocleidomastoid muscle. We present clinicoradiologic findings of a bilateral carotid body tumor from a 35-year-old woman with a review of literatures. Magnetic resonance imaging showed a vascular mass at the carotid bifurcation, displacing the external and internal carotid arteries. After embolization of feeding vessels using polyvinyl alcohol and gelfoam, we excised the mass without severe bleeding and neurologic symptoms.
Adult ; Angiography ; Carotid Artery, Internal ; Carotid Body Tumor* ; Carotid Body* ; Female ; Gelatin Sponge, Absorbable ; Hemorrhage ; Humans ; Magnetic Resonance Imaging ; Neck ; Neurologic Manifestations ; Neurosecretory Systems ; Polyvinyl Alcohol

Systemic lupuserythematosus (SLE )can occur commonly in young women. The cause of SLE remains unknown. The initial symptoms include fever, chilling, or weight loss, and these nonspecific symptoms develop into skin rash, pericarditis, spleenomegaly or lymphadenopathy. The prevalence of lymphadenopathy ranges from 12% to 59% in lupus patients. Although Lupus lymphadenitis is a common finding, it is rarely the presenting manifestation since it can be pathologically indistinguishable from histiocytic necrotizing lymphadenitis (Kikuchi's disease). There have been sporadic reports of lupus lymphadenitis. We present a case of a 53 year old woman presenting cervical and inguinal lymph node enlargement and generalized skin rash. The clinical and pathologic aspects as well as differential diagnosis of this entity are reviewed.
Diagnosis, Differential ; Exanthema ; Female ; Fever ; Histiocytic Necrotizing Lymphadenitis ; Humans ; Lupus Erythematosus, Systemic* ; Lymph Nodes ; Lymphadenitis ; Lymphatic Diseases ; Middle Aged ; Pericarditis ; Prevalence ; Weight Loss

No abstract available.
Animals ; Calcium ; Glucose ; Insulin ; Magnesium ; Pancreas ; Rats