BACKGROUND: It has been found that sterss challenge with heat shock produces the acquisition of cellular resistance to ischemin injury in the hearts, which is associated with stress protein induction. The conventional heat shock(42degrees C of rectal temperature for 15min, anesthetized animal), however, is strong enough to endanger the animal life and then not suitable for practiocal application in human. The present study was performedd in an attempt to search the safely applicabel stress modalities to acquire the myocardial tolerance to ischemia-reperfusion in jury. METHODS: Male, Sprague-Ddawley rats(200-250g) were exposed to various stressful conditions, such as heat stimulation(environmental temperature of 42degrees C for 30min, live animal), swimming(20min), immobilization(60min), treadmill exercise(20M/min, 30min) and hyperbaric oxygenation(3atm, 60min) given once a day for 5 days. Twenty-four hours after the last application the hearts were isolated and perfused with oxygenated Krebs-Henseleit buffer solution by Langendorff method. Ischemia-reperfusion injury was produced by 20 min-global ischemia followed by 30 min-reperfusion. Cardiac mechanical function, lactate dehydrogenase release, the induction of stree proteins were assayed and compared dbetween the stressed dand the control animals. RESULTS: Upon reperfusion after ischemia the recovery of cardiac function was significantly improved in the stressed animals. The percentile recovery at 30min of reperfusion was in a range from 55.3%(swimming) to 89.3%(treadmill exercise), which was significantly higher than that of the control hearts(38%). The functional recovery of the conventional heat shocked heart was 57.7%. In stressed animals, lactate dehydrogenase release, which indicates myocardial cell injury, was significantly reduced by 20 to 30% compared to that for the control. The expression of an inducible form of 70 series stress protein, SP72, which was assayed by immunoblotting method, was markedly increased by heat stimulation while the other stress modalities failed to increase, it. There were no appreciable inductions of SP73(constitutive form) and GRR78 in the stressed animals. CONCLUSION: These results suggest that the cardiac protection from the ischemia-reperfusion injury could be induced by the repetitive non-fatal stress stimulations and that SP70 family proteins may be partly involved in the cardioprotective effect produced by heat stimulation, but not play the essential roles in anti-ischemic effects produced by other stress modalities.
Animals ; Heart* ; Hot Temperature ; Humans ; Immunoblotting ; Ischemia ; L-Lactate Dehydrogenase ; Male ; Oxygen ; Rats* ; Reperfusion ; Reperfusion Injury ; Shock

No abstract available.
Hepatitis B* ; Hepatitis* ; Humans ; Mothers* ; Parturition*

Positron emission tomography (PET) with 2-[F-18]-Fluoro-2-deoxy-D-glucose (FDG) was performed in ninteen patients who had benign musculoskeletal tumors in order to determine if there was a relationship between histologic grade of tumor and FDG uptake of tumor. These patients had been evaluated previously with computed tomography (CT) or magnetic resonance (MR) imaging or both. The diagnoses were confirmed with incisional or excisional biopsy or by radiographic follow-up. Generally high-grade tumors had significantly greater uptake of FDG than low-grade lesions . Benign lesions such as giant cell tumor, fibrous dysplasia, and osteofibrous dysplasia showed significant elevation of SUV (Standardized Uptake Value) above 4.0. On the contrary. The current studies suggest the utility of FDG-PET imaging as an adjunct to CT or MR imaging in the evaluation of benign tumors. And results of PET suggest benign tumors with high SUV are histologically active lesion and tend to be locally aggressive.
Biopsy ; Diagnosis ; Electrons* ; Follow-Up Studies ; Giant Cell Tumors ; Glucose* ; Humans ; Magnetic Resonance Imaging ; Positron-Emission Tomography

No abstract available.
Carcinoma, Papillary*

No abstract available.
Methotrexate* ; Skin*

Total knee arthroplasty is a surgical treatment for end-stage osteoarthritis of the knee. Postoperative lower limb alignment is one of the factors determining the long-term prognosis after total knee arthroplasty. Navigation-assisted surgery can be used to achieve an accurate lower limb alignment. Particular situations, such as severe extra-articular deformity in the femur or tibia and retained hardware, are a good indication for navigation-assisted surgery. On the other hand, thorough preoperative planning and an understanding of each steps of surgery are necessary to perform total knee arthroplasty successfully in these special cases. In this review article, preoperative radiological measurements and surgical planning for extra-articular deformity correction will be elucidated. The surgical steps and necessary instruments for navigation-assisted total knee arthroplasty will be described in cases of extra-articular deformity or retained hardware. A literature review showed that the radiological and clinical results after total knee arthroplasty using navigation in osteoarthritis with extraarticular deformity were good. Therefore, it is essential to use navigation when performing total knee arthroplasty in patients with extraarticular deformity or retained hardware.

BACKGROUND: Tuberculous lymphadenitis is the commonest form of extrapulmonary tuberculosis. The laboratory diagnosis of tuberculous lymphadenitis is based on the traditional method of the acid-fast stain and culture of discharge or lymph node. However, acid-fast stain lack sensitivity and specificity, and culture is time- consuming. Polymerase chain reaction is a rapid, sensitive and specific DNA amplification technique for the detection of Mycobacterium tuberculosis in sputum, pleural fluid, cerebrospinal fluid, or others. We evaluate the sensitivity and specificity of the polymerase chain reaction assay for the rapid diagnosis of tuberculous lymphadenitis. METHODS: This study included 50 patient with clinically suspected tuberculous lymphadenitis. We performed fine needle aspiration biopsies (FNAB) on head and neck lymph node. The DNA of the sample was purified by phenol/chloroform method. The nested PCR was performed with TB-CR kit (Bioneer, Korea), which an amplified an insertion sequence IS 6110 sequences. The PCR product was analyzed by agarose gel electrophoresis in the presence of ethidium bromide. RESULTS: Forty-five of the 50 clinically suspected specimens were PCR-positive, five specimens were negative. And one of the 10 negative specimens was positive. The sensitivity and specificity of the PCR was 90% and 90%, respectively. CONCLUSION: The polymerase chain reaction is a very sensitive and rapid method for rapid detection of M. tuberculosis in patients with tuberculous lymphadenitis.
Biopsy ; Biopsy, Fine-Needle ; Cerebrospinal Fluid ; Clinical Laboratory Techniques ; Diagnosis* ; DNA ; Electrophoresis, Agar Gel ; Ethidium ; Head ; Humans ; Lymph Nodes ; Lymphadenitis ; Mycobacterium tuberculosis ; Neck ; Nucleic Acid Amplification Techniques ; Polymerase Chain Reaction* ; Sensitivity and Specificity ; Sputum ; Tuberculosis ; Tuberculosis, Lymph Node*

No abstract available.
Adrenocorticotropic Hormone*

We describe a case of fine needle aspiration cytology of metastatic nasopharyngeal carcinoma in the lymph node of the neck presenting a predominantly spindle cell pattern. A 36 year-old male patient complained of dysesthesia on the right face and a palpable neck mass. Fine needle aspiration was done on the neck mass. Tumor cells were present in syncytial groups or singly with mainly spindle shaped nuclei, vesicular chromatin, thin and regular nuclear membrane, occasional prominent nucleoli and a few foci of cellular cohesiveness. The cytoplasm was scant and pale with ill-defined borders. Mature lymphocytes were present in the background of aspirates and within the tumor cell clusters. Histologically, the tumor of nasopharynx showed several areas of spindle cell pattern. Because the tumor cells showed a predominantly spindle shape with vesicular nuclear chromatin, the differential diagnosis of spindle cell sarcoma or granuloma of epithelioid cells were considered, but the characteristic morphology of the nuclei with vesicular chromatin and prominent nucleoli, and cellular cohesiveness were important in making the diagnosis of nasopharyngeal carcinoma. The possibility of metastatic carcinoma should always be considered in fine needle aspiration cytology of the lymph node in the neck because the incidence of metastatic carcinoma, particularly of the nasopharyngeal carcinoma in the lymph nodes of the neck is relatively high.
Child ; Male ; Female ; Humans ; Diagnosis, Differential ; Incidence ; Neoplasm Metastasis

Nonfunctioning carcinoma of adrenal cortex is a rare disease and approximately 120 patients with nonfunctional adrenal cortical carcinoma have been reported in the world literature since first description of Rolienston and Marks in 1898. We report a case of nonfunctioning adrenal cortical carcinoma in a 47-year-old female patient, which was suspected by clinical investigation and confirmed by exploration and microscopic examination.
Adrenal Cortex* ; Adrenocortical Carcinoma ; Female ; Humans ; Middle Aged ; Rare Diseases