Role of platelet in immunity and inflammation / 中华微生物学和免疫学杂志

Platelets are anuclear cell fragments derived from megakaryocytes, playing a critical role in hemostasis and thrombosis through adhesion,activation,release and aggregation. Antiplatelet therapy represents as the cornerstone of secondary prophylaxis of cardiovascular diseases. Increasing evidences sup-port the emerging role of platelets in innate immunity and inflammation and their involvement in the patho-physiological processes of sepsis, atherosclerosis, autoimmune diseases and tumors. Anti-inflammatory and anti-tumor effects of aspirin and P2Y12 receptor antagonist have been reported in clinical trials, suggesting that antiplatelet therapy may have a broad prospect in application. In this review,we focused on the molecu-lar mechanism of platelet involved in immunity and inflammation. In addition,recent findings of antiplatelet therapy for sepsis,atherosclerosis and tumors were discussed.

Detection of circulating tumor cells by recombinant virus / 中华实验和临床病毒学杂志

The detection and molecular characterization of circulating tumor cells(CTCs) is one of the most important tool for liquid biopsy, which has the potential to enable non-invasive diagnostic tests for personalized medicine. Commercial platforms represented by CellSearch, the first FDA approved assay, have been considered to be valid for CTCs detection. However, special equipment and consumptive materials are required in the techniques listed above. Besides, most of them can not differentiate between apoptotic and viable cells, which indicates the portion of active and functional CTCs. Therefore, how to develop novel method for CTCs enrichment with metastatic potential has great significance in clinical routine. Telomerase-specific replication-selective oncolytic viruses expressing green fluorescent protein(GFP), including herpes simplex virus and adenovirus, allow the detection for human CTCs in the peripheral blood. After 24 h of transfection with recombinant virus, the tumor cells stably express GFP, and it could be used for CTCs counting by fluorescent microscopy or flow cytometry. Moreover, downstream analysis would be achieved by combination with PCR or DNA sequencing. Recombinant virus enables early detection of metastatic tumor cells, because the fluorescent signal is amplified only in viable, infected CTCs, by viral replication. This GFP-expressing virus-based method is remarkably sensitive, simple, and feasible, and it offers a new opportunity to detect and characterize CTCs in clinical routine.

Clinical Diagnosis and Treatment of Idiopathic Subglottic Stenosis: a Report with Four Patients / 现代生物医学进展

Objective:To investigate the clinical diagnosis and treatment of idiopathic subglottic stenosis.Methods:From May 2012 to January 2014,four patients with idiopathic subglottic stenosis admitted in the Department of Otolaryngology,the Affiliated Drum Tower Hospital of Nanjing University Medical School,Nanjing,Jiangsu,China were selected for review.Results:All the four patients with idiopathic subglottic stenosis were resolved after the resection of the pathological tissues and subsequent hormone treatment.Conclusions:The confirmed diagnosis of idiopathic subglottic stenosis mainly relied on the medical history and pathological examination.Favorable treatment effects might be obtained by combining surgical resection and hormone treatment.

Stability Study on 3 Pieces of Chinese Medicinal Formula after Decoction / 中国药房

OBJECTIVE:To preliminarily study the stability of 3 pieces of Chinese medicinal formula(CMF)after decoction, and provide reference for guaranteeing storage quality of decocted liquid and improving safety of drug use. METHODS:3 represen-tative formulas of Gegen Huangqin Huanglian decoction(A formula),Wuling powder(B formula)and Didang decoction(C for-mula)from Shanghan Zabing Lun were selected,the decocted liquid were stored under ambient temperature(25 ℃)and refrigerat-ed temperature (4 ℃) after decocting by automatic boiling-machine and packing. The microorganism,precipitation,pH and con-tents of total flavonoids,alkaloid,polysaccharide,total protein after 1,7,14,21,28 d were detected. RESULTS:Compared with the first day,contents of total flavonoids,polysaccharide in formula A at ambient temperature group were significantly in-creased on the 28th(P<0.05),content of polysaccharide in refrigerated temperature group was significantly increased(P<0.05). Content of polysaccharide in formula B at ambient temperature group was significantly decreased(P<0.05). The pH and content of total flavonoids in formula C at ambient temperature group and refrigerated temperature group were significantly increased (P<0.05 or P<0.01). Other indexes showed no obvious changes during the trial period. CONCLUSIONS:Under ambient temperature and refrigerated temperature,liquid ingredients of above decocted CMF will change when storing for 4 weeks. It indicates that the storage time of decocted CMF should not be more than 3 weeks.

The study of risk factors of nasal septal perforation in rats / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To study the risk factors and interaction of nasal septal perforation (NSP) in rats.@*METHOD@#Animals (n=120) that underwent unilateral nasal obstruction using Merocel nasal packing or gelfoam with/without standard staphylococcus aureus inoculation were observed for the formation of NSP at 2, 3, 5, and 7 days after operation by endoscope system. Following sacrifice at 7 days, the obtained nasal secretions were prepared for bacterial culture. Experimental interventions were compared with normal controls (n=10).@*RESULT@#Perforation of nasal septum was observed in 80% of the animals accepted nasal obstruction using Merocel nasal packing with standard staphylococcus aureus inoculation in 3 days (P 0.05). There was a weak region in anteroinferior nasal septum in rats, which the almost NSPs located in. The position of NSP does not overlap Merocel.@*CONCLUSION@#The interaction of risk factors contributes to NSP. The occurrence of NSP mainly depends on the construction of nasal septum, while dysaemia is also necessary. Obstruction of nasal drainage and infection promote the development of NSP.

Clinical application of cone beam CT in the treatment of jaw bone cyst / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To evaluate the value of cone beam CT (CBCT) in the treatment of jaw bone cyst.</p><p><b>METHODS</b>Twenty-five patients with jaw bone cyst were included, which were examined by CBCT as an addition of panoramic radiography. Through CBCT, the information about the three-dimensional location, the bone wall of cyst and the relationship between cyst, teeth and some other important anatomical structures were studied, surgical preparations and treatments followed accordingly.</p><p><b>RESULTS</b>The CBCT images clearly demonstrated detailed information about the cyst, which was verified in the operation and helpful to the surgical preparation and treatment.</p><p><b>CONCLUSION</b>CBCT is more advantageous in the diagnosis and treatment of the jaw bone cyst than traditional panoramic radiography and periapical film.</p>

Diagnostic Value of Serum Tumor Markers for Lung Cancer / 中国肿瘤临床

Objective: To investigate the diagnostic value of serum SCC, NSE, CEA, and CYFRA21-1 for lung cancer patients.Methods" The levels of SCC, NSE, CEA, and CYFRA21-1 were detected by electrochemoluminescence immuno-assay in 132 lung cancer patients, 48 patients with benign lung diseases and 92 healthy people.Results: The levels of NSE, CEA, and CYFRA21-1 in patients with lung cancer were higher than those in patients with benign lung diseases and in.normal controls.The level of SCC in patients with lung cancer was higher than that in normal controls.The levels of CEA and CYFRA21-1 in patients with benign lung disease were higher than those in normal controls.Patients with adenocarci-noma had the highest level of GEA and patients with small cell lung cancer had the highest level of NSE.Patients with squamous cell carcinoma had the highest levels of SCC and CYFRA21-1.The sensitivity sequence of the tumor markers in lung cancer was: NSE>CEA>CYFRA21-1>SCC.CEA showed the highest sensitivity of about 58.8% in adenocarcinoma.CYFRA21-1 showed the highest sensitivity of about 71.4% in squamous cell carcinoma.NSE showed the highest sensitivi-ty of about 50% in small cell lung cancer.ROC curves showed that the under-curve area of NSE, CEA, and CYFRA21-1was 0.928±0.034, 0.957±0.026, and 0.964±0.023, respectively.The combination of NSE, CEA, and CYFRA21-1 presented with the highest sensitivity (75.6%) and good specificity (90.7%) for the diagnosis of lung cancer.The combination of SCC, NSE, and CEA detection presented with the highest sensitivity (73.5%) for the diagnosis of adenocarcinoma.The combina-tion of NSE, CEA, and CYFRA21-1 showed the highest sensitivity (87.5%) for the diagnosis of squamous call carcinoma.The combination of SCC, NSE, and CYFRA2.1-1 showed the highest sensitivity (75.0%) for the diagnosis of small cell lung cancer.Conclusion: The assay of SCC, NSE, CEA and CYFRA21-1 is useful for the diagnosis of lung cancer and the ex-pression of the four tumor markers is closely correlated with pathological types.The suitable combination of tumor markers is helpful for differential diagnosis of lung cencar.