Hypercalcluria is well recognized as an important factory in the cause of idiopathic calcium stone disease. Absorptive hypercalciuria and renal hypercalciuria constitutes two major forms of idiopathic hypercalciuria. It is now suggested that renal prostaglandins influence internal hemodynamics and tubular electrolyte excretion, so determine the renal handling of calcium. It is generally believed that urinary c-AMP which comes from renal tubular cells in response to parathyroid hormone stimulation may have an effect calcium reabsorption in distal convoluted tubules. We performed the study to evaluate the significance of urinary calcium, PGE2 and c-AMP in stone formation. Urinary sodium, calcium, PGE2 and c-AMP were measured in 23 in-patients with urolithiasis under the usual diet. The results obtained were summarized as follows: l. 24-hour urinary Na was 120.6+/-49.7mEq/day(mean S.D), 24-hour Ca 202.8+/-68.3 mg/day, Urinary PGE2 625.6+-h 386.9pq/ml and Urinary c-AMP l2.9+/-10.2 nmol/mg creatinine. 2. There was high correlation between urinary. PGE2 level and urinary Na level(r =0.95, <0.005 by paired t-test). 3. There was high correlation between urinary PGE2 level and urinary Ca level(r=0.87, p< 0.005). 4. Urinary Ca level has no significant correlation with urinary c-AMF level(r=0.63, p<0.05).
Calcium* ; Creatinine ; Diet ; Dinoprostone* ; Hemodynamics ; Hypercalciuria ; Parathyroid Hormone ; Prostaglandins ; Sodium ; Urolithiasis*

No abstract available.
Animals ; Gram-Negative Bacteria* ; Interleukin-2* ; Mice*

The study was undertaken to evaluate the effect of major blood components on the CT number. The CT numbers according to the various levels of hematocrit, total protein and cholesterol were checked and analysed by the dilution of pack cell, plasma and 184 complete blood cell count samples under same scanning conditions. In case of normal protein and cholesterol level(33 samples), the CT number was increased about 5.5 hounsfield unit according to 10% increase of hematocrit level: and In case of normal hematocrit and cholesterol level(39 samles), the CT number was increased about 3.5 hounsfield unit according to 1gm% increase of protein level. CT number changes were not predictable according to the changes of cholesterol level(34 samples). From these results, we concluded that major blood components should be considered in the CT number analysis of tissue.
Blood Cell Count ; Cholesterol ; Hematocrit ; Plasma Cells

PURPOSE: The purpose of this study was to assess the usefulness of MRI in the evaluation of vascular changes of the meningioma. MATERIALS AND METHODS: We retrospectively studied the MRI findings in 20 cases of intracranial meningiomas. The images were assessed for vascular hilum, vascular rim, sinus invasion, and vascular encasement. Cerebral angiograms were obtained in 15 cases and compared with MRI findings. RESULTS: MRI was as accurate as angiography in detection of vascular hilum(MRl=8/20, Anglogram=9/15), vascular rim(MRl=14/20, Angiogram=9/15) and dural sinus invasion(MRl=4/6, Angiogram=5/6). MRI was superior to angiography in detection of vascular encasement(MRl=2/3, Angiogram=0/2) and cavernous sinus invasion(MRI=3/3, Angiogram=0/2). CONCLUSION: MRI is an excellent noninvasive imaging modality in evaluating vascular changes of omas.
Angiography ; Cavernous Sinus ; Magnetic Resonance Imaging* ; Meningioma ; Retrospective Studies

Tuberculosis and lymphoma, these 2 diseases can present with lyphadenopathy in anywhere of the body. Therefor differentiation of tuberculosis from lymphoma is often difficult. CT scans of 17 patients with tuberculosis and 23 patients with lymphoma were retrospectively reviewed to evaluate the efficacy of CT scans in differentating adenopathy between tuberculosis and lymphoma, All the patients underwent abdominal CT scans with contrast enhancement before treatment. The size, internal architecture, distribution of lymph nodes, and associated findings on CT scans were analyzed. As compared with lymphoma, tuberculous lymphadenopathy showed 1) female preponderance (65%), 2) predilection for portocaval lymph nodes (47%), 3) internal low attenuation in lymph nodes (82%), 4) cold abscess formation (24%). Characteristics of lymphoma on CT scans included 1) male prepondrance (78%), 2) conglomeration of lymph nodes (39%), 3) homogenous internal lymph node structure (83%). These results suggest that evaluation of the characteristics of lymphadenopathy on CT scans is helpful for differentiating between tuberculosis and lymphoma.
Abscess ; Female ; Humans ; Lymph Nodes ; Lymphatic Diseases* ; Lymphoma ; Male ; Retrospective Studies ; Tomography, X-Ray Computed ; Tuberculosis*

Tuberculosis and lymphoma, these 2 diseases can present with lyphadenopathy in anywhere of the body. Therefor differentiation of tuberculosis from lymphoma is often difficult. CT scans of 17 patients with tuberculosis and 23 patients with lymphoma were retrospectively reviewed to evaluate the efficacy of CT scans in differentating adenopathy between tuberculosis and lymphoma, All the patients underwent abdominal CT scans with contrast enhancement before treatment. The size, internal architecture, distribution of lymph nodes, and associated findings on CT scans were analyzed. As compared with lymphoma, tuberculous lymphadenopathy showed 1) female preponderance (65%), 2) predilection for portocaval lymph nodes (47%), 3) internal low attenuation in lymph nodes (82%), 4) cold abscess formation (24%). Characteristics of lymphoma on CT scans included 1) male prepondrance (78%), 2) conglomeration of lymph nodes (39%), 3) homogenous internal lymph node structure (83%). These results suggest that evaluation of the characteristics of lymphadenopathy on CT scans is helpful for differentiating between tuberculosis and lymphoma.
Abscess ; Female ; Humans ; Lymph Nodes ; Lymphatic Diseases* ; Lymphoma ; Male ; Retrospective Studies ; Tomography, X-Ray Computed ; Tuberculosis*

The levels of prostaglandin E were studied in the urine of 25 female patients with irritative bladder symptoms but no evidence of organic disease or urinary infection (female urethral syndrome). Twenty five healthy women served as a control group. A significant elevation of prostaglandin E in the urine of patient with female urethral syndrome was demonstrated (by Wilcoxon rank sum test; z= -2.32, p<0.05). The results suggest that prostaglandins may be responsible for the lower urinary tract symptoms in the patients. The potential beneficial clinical effects of prostaglandin syntheses inhibitors in treatingthe severe discomfort associated with urethral syndrome need to be evaluated further.
Female* ; Humans ; Lower Urinary Tract Symptoms ; Prostaglandins ; Urinary Bladder

STATEMENT OF PROBLEM: Recently, resin cements have become more widely used and have been accepted as prominent luting cements. Current resin cements exhibit less microleakage than conventional luting cements. However, the constant contact with water and exposure to occlusal forces increase microleakage even in resin cements inevitably. Most bonding resins have been modified to contain a hydrophilic resin such as 2-hydroxyethylmethacrylate (HEMA) to overcome some of the problems associated with the hydrophobic nature of bonding resins. By virtue of these modifications, bonding resins absorb a significant amount of water, and there may also be significant stresses at bonding interfaces, which may adversely affect the longevity of restorations. Therefore the reinforcement of water stability of resin cement is indispensable in future study. PURPOSE: This study was conducted to examine the influence of water retention on microleakage of two resin cements over the period of 6 months. MATERIALS AND METHODS: 32 ex acted human teeth were used to test the microleakage of a single full veneer crown. Two resin cements with different components and adhesive properties - Panavia F (Kuraray Co., Osaka, Japan) and Super-Bond C&B (Sun Medical Co., Kyoto, Japan)- were investigated. The storage medium was the physiological saline solution changed every week for 1 month, 3 months, and 6 months. One group was tested after storage for 1 day. At the end of the each storage period, all specimens were exposed to thermocycling from 5.C to 55.C of 500 cycles and chewing simulation of 50,000 cycles, and then stained with 50% silver nitrate solution. The linear penetration of microleakage was measured using a stereoscopic microscope at x 40 magnification and a digital traveling micrometer with an accuracy of +/-3 um. Values were analyzed using two-way ANOVA test, Duncan's multiple range tests (DMRT). RESULTS: Statistically significant difference of microleakage was shown in the 3-month group compared with the 1-day or 1-month group in bot systems (p<0.05) and there were statistically significant differences in microleakage between the 3-month group and the 6-month group in both systems (p<0.05). The two systems showed different tendency in the course of increased microleakage during 3 months. In Panavia F, microleakage increased slowly throughout the periods. In Super-Bond C&B, there was no significant increase of microleakage for 1 month, but there was statistically significant increase of microleakage for the next 2 months. For the mean microleakage for each period, in the 3-month group, microleakage of Super-Bond C&B was significantly greater than that of Panavia F. On the other hand, in the 6-month group, microleakage of Panavia F was significantly greater than that of Super-Bond C&B (p<0.05). CONCLUSION: Within the limitation of this study, water retention of two different bonding systems influence microleakage of resin cements. Further studies with the longer observation periods in viro are required in order to investigate water stabilty and the bonding durability of the resin cement.
Adhesives ; Bite Force ; Crowns ; Hand ; Humans ; Longevity ; Mastication ; Resin Cements* ; Silver Nitrate ; Sodium Chloride ; Tooth ; Virtues ; Water*

We report a case of 68-year-old male patient who was confirmed as d'emblee type of mycosis fungoides. The skin lesions showed sharply rnargined multiple reddish brown coIarcd papules, ndules, and tumors on the groin, thign, abdomen, and neck. The microscopic findings showed the epidermotropism and pautrier's micruabscess in the epidermis, and the infiltration of atypical cells in the dermis. The electron micrascopic findings showed irregular contour of the nuclear mernbrane within atypical lymphocytes. Thc lesions were gradually diminished by superficial radiation therapy.
Abdomen ; Aged ; Dermis ; Dronabinol ; Epidermis ; Groin ; Humans ; Lymphocytes ; Male ; Mycosis Fungoides* ; Neck ; Skin

No abstract available.
Female ; Ovary*