Adolescent ; Adult ; Barotrauma ; complications ; Female ; Humans ; Male ; Middle Aged ; Occupational Diseases ; etiology ; therapy ; Sinusitis ; etiology ; therapy ; Young Adult

OBJECTIVE To explore the causes, predilection sites and treatment of nasal sinus mucoceles after hypophysectomy.METHODS The clinical data of 7 cases with nasal sinus mucoceles after hypophysectomy diagnosed and treated in our Department from Jan.1998 to Aug.2007 were retrospectively studied.RESULTS The mucoceles were located at ethmoid sinus in 2 cases,frontal sinus in 2 cases,frontal and ethmoid sinuses in 3 cases.All of the 7 cases underwent mucocelectomy under nasal endoscope or a combined endoscopic intranasal and extra-nasal approach.No recurrence was found after follow up for 1 to 3 years.CONCLUSION The causes of nasal sinus mucoceles after hypophysectomy are the change of the anatomic structure of nasal cavity after surgery.The stenosis,adhesion of middle nasal meatus or obstruction of the sinus ostium are found in all the patients.Intranasal endoscopic surgery or combined with extra-nasal approach is the first choice for nasal sinus mucoceles.

Costimulatory signals have become a hot field in immunological researches. As co-inhibitory molecules, programmed death-1 ( PD-1) and its ligands (PD-1/PD-L) have been demonstrated to play an important role in autoimmune disease, organ transplant rejection, microorganism infection, tumor immune escapes etc. . In recent years,some studies about PD-1/PD-L pathway in ophthalmology have been curried out and reported. Some changes were found in PD-1/PD-L pathway, such as ocular immunologic diseases, ocular infectious diseases, ocular tumors, immune privilege in ocular tissues and so on. Through the research on PD-1/PD-L pathway,we can further understand the pathogenesis of some ocular diseases and find new methods for their prevention and treatments. This article reviewed the recent advances in PD-1/PD-L pathway in ophthalmological physiopathology.

Objective To study the effect and the possible mechanism of delavirdine on muhidrng resist-ance-aasociated protein 2(MRAP2)-mediated multidrug resistance in LLC/cMOAT cells. Methods MTT assay was used to determine the effects of delavirdine on proliferation of LLC/CMV and LLC/cMOAT cells. The inhibitory effects of vincristine (VCR),cisplatin (DDP),adriamycin (ADM) and etoposide (VP-16) used alone or in combi-nation with delavirdine on the proliferation of LLC/CMV and LLC/cMOAT cells were evaluated by MTT assay. The cell cycle distribution, the apoptosis rate of the cells treated with different concentration of delavirdine and the intra-cellular concentration of ADM were determined by flow cytometry (FCM). Results Delavirdine at the concentration of 4 μmol/L and below showed no significant cytotoxicity to LLC/CMV and LLC/cMOAT cells. The resistance of LLC/cMOAT cells to VCB, VP-16, ADM and DDP were 9.58,1.11,2.98 and 3.96 folds of that of LLC/CMV cells. When 2 μmol/L delavirdine was added, the resistance was 5.21 and 2.55 folds respectively;when 4 μmol/L dela-virdine was edded,the resistance was 7.56 and 3.03 ,while 2,4 μmol/L delavirdine made no significant changes to the chemosensitivity of LLC/CMV cells to VCR and DDP(P>0.05). Cellular cycle analysis demonstrated that 0,6, 12,24 hours after co-cultured with delavirdine the amount of cells at G1 phase increased from(38.92±0.15)% to (56.87±2.23)%,(65.36±2.76)% and (74.77±5.06)%. The cell apoptosis rate increased from 1.77% to 17.45% and 28.52% when treated with delavirdine at 2,4 μmol/L and VCR for 24 h. When treated with 2,4 μmol/L delavirdine, ADM accumulation in LLC/cMOAT cells was enhanced significantly(P<0.05). Conclusion DLV can partially reverse the multidrng resistance of LLC/cMOAT cells, and the reverse effect correlates to the concentration. The possible mechanism may involve the growth arrest at G1, increasing of intracellular drug concen-tration and promoting apoptosis.

Objective To investigate the association between -45C→G mutation at promoter of human urate transporter 1 gene and primary hyperuricemia. Methods The allele frequency and genotypo distribution of -45 C→G mutation at promoter of human urate trans-porter 1 gene were determined by PCR-RFLP in 217 patients with primary hyperuricemia and 419 normal controls. Results The frequencies of the G allele and CG genotype at promoter of human urate transporter 1 gene in patients were significantly higher than that in normal controls (P = 0. 031, P = 0.031). The levels of serum uric acid (UA) and triglyceride (TG) in subjects of CG genotype were significantly higher than those in the objects of CC genotype(t=3.058, t=3.699, P=0.002, P<0.001). There were no significant difference in the levels of total cholesterol (TC), fasting plasma glucose (FPG), urea nitrogen (BUN), creatinine (Cr) between the two groups (P>0.05). Conclusion The -45 C→G mutation at promoter of human urate transporter 1 gene may be related to primary hyperuricemia.

The demands for Traditional Chinese Medicine(TCM)standardization are rising internationally,but the development for TCM intemational standards is confronted with competence.In this context,the authors analyzed the competing status of intemationalized TCM standardization from 3 aspects:1.It is the key point for competition that obtaining leadership in the international organization and dominant position in developing important intemational standards:2.Integrating technical development and intellectual property with intemational standards has been gradually formed;3.Striving to make breakthrough in the development of TCM international standards on the basis of TCM Chinese national standards.The authors recommend that international standards be initiated from TCM service standards.TCM products quality standards and TCM process standards.

Objective:To observe the clinical efficacy of Pingxiao capsules in the treatment of benign thyroid nodules. Methods:Totally 240 patients with benign thyroid nodules were randomly divided into the treatment group and the control group with 120 ones in each. The control group received levothyroxine at low dose, the treatment group received Pingxiao capsules, and the treatment course was 3 months. The type B ultrasonic inspection and lab inspection ( for thyroid hormones and blood lipid) were carried out, the cura-tive effect was compared and the adverse reactions were recorded as well. Results:Three patients in the treatment group and five ones in the control group were lost during the follow-up. After the treatment, the max diameter of thyroid nodule and the thyroid volume de-creased in both groups (P<0. 05), and those in the treatment group were smaller than those in the control group (P<0. 05). The levels of TSH and TC in the control group decreased after the treatment, which were significantly lower than those in the treatment group (P<0. 05). The total effective rate in the treatment group was higher than that in the control group, and the incidence of ad-verse reactions was lower than that in the control group, and both had significant differences between the groups (P<0. 05). Conclu-sion:Pingxiao capsules are effective and safe in the treatment of benign thyroid nodules.

Objective: To investigate the 18F-FDG PET myocardial scintigraphy and Coronary CT angiography (CTA) combination improve coronary heart disease clinical diagnosis level, and the diagnosis of coronary heart disease treatment technology of standardization for clinical application. Methods:The use of positron radionuclide drug 18F-fluorodeoxyglucose (18F-FDG) was made in 35 patients with myocardial metabolic imaging of coronary arteries and CTA examination, 20 patients with myocardial infarction patients, the FDG PET myocardial scintigraphy and coronary artery CTA combine examination results and confirmed case comparison of results. Results: 18F-FDG PETmyocardial scintigraphy and coronary artery CTA combination in the diagnosis of coronary heart disease, sensitivity and specificity of 100%and 96%. Conclusion: 18F-FDG PET data and coronary artery CTA precision data fusion, the fusion image is accurate, can not only provide clinicians reflect coronary artery anatomy indicators, can also provide reflect myocardial pathological physiology and metabolism index, to verify and supplement each other between the indicators.

Objective To explore the application value of the diffusion-weighted imaging (DWI)and dynamic contrast-enhanced MRI in detection of peripheral zone of hepatic alveolar echinococcosis (HAE).Methods Twenty patients with HAE underwent abdominal plain scan,DWI and dynamic enhanced MRI.The ADC values and enhanced ratio of the central necrosis,solid component,peripheral zone and normal liver parenchyma were measured at a workstation,and further were analyzed and compared.Results 32 lesions were detected in 20 patients with HAE.Two groups were divided according to the lesion with central necrosis (group A)or not (group B).In group A, the ADC values of the solid part and normal liver parenchyma were (1.52±0.30)×10 -3 mm2/s and (1.22±0.30)×10 -3 mm2/s. Meanwhile,in group B those were (1.50±0.25)×10-3 mm2/s and (1.03±0.28)×10-3 mm2/s,exhibiting no statistical differences between the two groups.In group A and B,the ADC values of the peripheral zone of lesion were 1.34(1.10,1.61)×10 -3 mm2/s and 0.96 (0.86,1.22)×10 -3 mm2/s,exhibiting statistical differences (Z =2.867,P =0.004);meanwhile,the enhanced ratio were 1.70± 0.36 and 1.58±0.30,exhibiting no statistical difference.No correlation between ADC values and enhanced ratio was found in the peripheral zone.Conclusion DWI at 3.0T can display visually the HAE,and the ADC value may reflect the DWI features of periph-eral zone.The ADC values in combination with enhanced ratio may help for the diagnosis.

Objective To explore the consistency of chemiluminescence microparticle immunoassay(CMIA)reagent and particle‐enhanced turbidimetric immunoassay(PETIA) reagent for detecting pepsinogen(PG) ,so as to provide laboratory references for en‐suring the reliability of PETIA reagent in detecting PG .Methods According to the requirement of EP9‐A2 file made by the Nation‐al Committee for Clinical Laboratory Standards(NCCLS) ,taking PETIA as evaluating method and CMIA as reference method ,a to‐tal of 92 specimens collected from patients with various degrees of gastric atrophy were selected ,PETIA and CMIA reagents were utilized for bidirectional detection of PG .Then recorded test results of pepsinogenⅠ(PGⅠ) ,and PGⅠ /pepsinogenⅡ(PG Ⅱ) rati‐o ,and carried out method comparison and bias evaluation for the two kinds of reagents .Results The expected relative bias of detec‐tion results of PGⅠ and PGⅠ /PG Ⅱ ratio by using PETIA and CMIA reagents were acceptable within linear range of methods . Conclusion The results of PGⅠ and PG Ⅱ detected by using PETIA reagent could be accepted .