Adult ; Hearing Loss, Noise-Induced ; etiology ; Hearing Tests ; Humans ; Male ; Middle Aged ; Noise, Occupational ; adverse effects ; Young Adult

OBJECTIVE:To establish a RP-HPLC method for determination of the content of baicaline in Qingkailing Injection,so as to control the quality of this preparation.METHODS:The column was C18.The mobile phase was methanol-acetic acid-water(45∶1∶55).The detection wavelength was 274nm.RESULTS:There was a good linear relationship between the concentration of baicaline and absorption area value in range of 0.25～2.5?g/ml,r=0.9 992.The average recovery was 98.4%(n=5) with RSD=1.5%(n=5).CONCLUSION:The method was highly repeatable and accurate.

Objective To investigate the significance of combined detection of serum tumor markers in the diagnosis of lung cancer,and to select the most sensitive serum tumor markers.Methods Enzyme-linked immunosorbent assay was used to detect the serum tumor markers of 62 lung cancer patients and 62 healthy persons,who were neuron specific enolase enzyme (NES),carbohydrate antigen 125 (CA 125),cytokeratin 19 (CYFRA21-1) and carcinoembryonic antigen(CEA).Results The level of serum CEA,CA125,CYFRA21-1,and NES of the lung cancer group were all higher than those of the control group (all P ＜ 0.05).Among the four kinds of tumor markers,CA125 had the highest sensitivity(59.7％),which was followed by CEA(53.2％).The sensitivity of the four kinds of joint detection was 87.1％,the highest sensitivity of three markers joint detection was CEA + CA125 + CYFRA21-1 (87.1％),while that of the two kinds of joint detection was CEA + CA125 (75.8％).Conclusion There are high clinical significance in the diagnosis of lung cancer with four kinds of serum tumor markers,CEA + CA125 + CYFRA21-1 can be used as the best markers for joint detection of lung cancer with high sensitivity.

Adult ; Decompression Sickness ; Diving ; Humans ; Male ; Middle Aged ; Occupational Diseases

Humans ; Medicine, Chinese Traditional ; Respiratory Tract Diseases ; prevention & control ; therapy ; virology ; Virus Diseases ; prevention & control ; therapy

Plasma concentrations of immunoreactivc beta-endorphin in patients with NIDDM were measured by radioimmuno-assay. It was found that the plasma beta-endorphin levels decreased in 68 cases of NIDDM especially in those with long duration of illness and chronic complication. These results suggested that beta-endorphin may be related to diabetes and its chronic complication.

Immunoreactive beta-endorphin was measured by radioimmunoassay (RIA) in the pituitary, hypothalamus, pancreas and plasma of female diabetic rats induced by streptozotocin. In addition, pain threshold was determined. The results showed that the concentrations of beta-endorphin in pituitary, hypothalamus, pancreas and plasma began to decrease on the first month after being made diabetic. Then, the levels of beta-endorphin continued to decrease significantly as the course progressed, especially in pancreas and plasma. Diabetic rats consistently showed a decreased pain threshold after 4 weeks. These results suggested that the decrease of beta-endorphin may be related to the course of diabetes and pain threshold.

Arthritis, Juvenile ; complications ; Child ; Female ; Humans ; Macrophage Activation Syndrome ; complications

Angiotensin II Type 1 Receptor Blockers ; therapeutic use ; Antiviral Agents ; therapeutic use ; Biomarkers ; blood ; Biopsy ; Elasticity Imaging Techniques ; Humans ; Liver Cirrhosis ; diagnosis ; etiology ; therapy

We reported a case of rheumatoid arthritis (RA) combined with pigmented villonodular synovitis (PVNS) from Peking University People's Hospital. The clinical data were introduced and the related literature was reviewed. The clinical features, treatment and prognosis of the disease were summarized to improve clinicians' understanding of this rare disease and avoid misdiagnosis and delayed diagnosis. A 45-year-old female, with 15 years of RA history and unregular treatment, was admitted to the hospital with the complaint of aggravating pain and swelling in the right knee for 3 months. The puncture of the right knee was performed and there was a large amount of bloody synovial fluid that could not be explained by her RA history. Moreover, the magnetic resonance imaging (MRI) of the right knee revealed hemosiderin deposition with low-intensity signals on both T1-weighted and T2-weighted images which suggested PVNS to us. Then, the patient underwent knee arthroscopy and biopsy to assist in diagnosis. The arthroscopic appearance and pathology were consistent with PVNS and the hyperplastic synovium was removed during arthroscopy. After the operation, she did active functional exercises and took disease-modifying antirheumatic drugs to control RA. She recovered well and remained asymptomatic after half a year of follow-up. Also, there was no recurrence of the right knee. As we all know, RA is a systemic autoimmune disease characterized by chronic synovitis and joint damage. And PVNS is characterized by synovial proliferation and infiltrative process. Both of them are synovial involvement and the clinical manifestations are quite similar. PVNS has occasionally been reported in association with RA. So it is difficult to make a clear diagnosis of RA combined with PVNS. Literature was searched with RA+PVNS in the WanFang Medical Network Database and China National Knowledge Infrastructure and there were no related Chinese cases. Then we searched literature from PubMed with RA+PVNS. The cases were still rare and eventually 2 related articles were yielded including 2 similar patients. It is necessary to fully understand the disease development, complicated MRI appearance and various pathological morpho-logy. They can contribute to making a correct diagnosis which is effective to guide the proper treatment.
Arthritis, Rheumatoid/diagnosis* ; Arthroscopy ; China ; Female ; Humans ; Knee Joint/diagnostic imaging* ; Magnetic Resonance Imaging ; Middle Aged ; Neoplasm Recurrence, Local ; Synovitis, Pigmented Villonodular/diagnosis*