Objective To study the short-term effects of delayed cord clamping (DCC) in preterm infants.Method A thorough search was conducted on medical databases including Cochrane Library,PubMed,Ovid,Medline,VIP citation databases,Wanfang database and CNKI.Randomized control trials (RCTs) of DCC in preterm infants were retrieved from medical literature published during January 1,2000 to January 1,2016.DCC group had cord clamping 30 ～60 s after birth,and immediate cord clamping (ICC) group had cord clamping within 30 s after birth.Methodological quality was evaluated using Cochrane Handbook for systematic reviews and RevMan 5.1 software.Meta-analysis was performed using RevMan 5.1 software.Result Seventeen RCTs were included.Meta-analysis showed that:the blood pressure within 4 hours after birth (WMD =2.49,95％ CI 0.74 ～ 4.24),the hemoglobin concentration (WMD =15.92,95 ％ CI 6.37 ～ 25.47) and the hematocrit (WMD =4.84,95 ％ CI 3.47 ～ 6.22) within 24 hours after birth in the DCC group were higher than the ICC group,P ＜0.05;the risk of anemia (RR =0.62,95％ CI 0.47 ～ 0.81),intraventricular hemorrhage (RR =0.64,95 ％ CI 0.45 ～ 0.91) and mortality (RR =0.42,95％ CI 0.20 ～0.86) in the DCC group were lower than the ICC group,P ＜0.05;there were no statistically significant differences between the two groups in peak of serum bilirubin,phototherapy duration,rate of phototherapy treatment and blood transfusion,the incidence of hyperbilirubinemia and polycythemia (P ＞ 0.05).Conclusion DCC is safe and feasible for premature infants,and can improve the outcome of premature infants.

Purpose:To study the effect of inhibition of telomerase activity and cell cycle by transcriptase telomerase inhibitors (3′ azido 3′ deoxythymidine, AZT) on squamous cell carcinoma of tongue in vitro.Methods:Human squmous cell carcinoma of tongue cell line Tca8113 was used as target cell. Telomerase activity was determined by TRAP PCR ELISA in untreated and treated Tca8113 by AZT, cell cycle phases were analyzed by flow cytometry. Results:Telomerase activity of Tca8113 was significantly inhibited when treated with AZT, and the effect of inhibition was dose dependant (rate of telomerase activity treated with AZT in 0.3, 0.6, 1.0, 1.5mol 10 -1 was 0.69 0.03, 0.61 0.08, 0.53 0.11, 0.50 0.02 respectively, rate of telomerase activity treated without AZT was 0.76 0.06). Cell cycle of treated Tca8113 was changed with marked increase in G 2 /M phase compared with untreated Tca8113 (62.8% vs 19.7%, P

Objective For purpose of meeting the requirement of forensic toxicological investigation, a RPHPLC method was established for simultaneous determining lidocaine and bupivacaine in human spinal cord pretreated with formaldehyde. Method Analytical column was YWG-C18 (4.6mm?150mm) and a per column. Mobile phase was CH3OH:0.015M NaH2PO4 =75:25 (v/v) pH = 7.2. The wavelength of detection was 210 nm. The pretreatment method of sample, detection condition, linear range, precision and recorery of the method were systematically investigated by using blank spinal cord spiked with standard lidocaine and bupivacaine. Results The linear range was 0.5 ~ 10.0?g.g-1 (lidocaine: r=0.9999; bupivacaine: r = 0.9998). The detection limit of lidocaine was 15ng and of bupivacaine 20ng (S/N≥3). The intra and inter day precision of assay of lidocaine and bupivacaine were less than 4.3% (n=5). Both lidocaine and bupivacaine have been detected in a forensic toxicological analysis case by using this method and the result was correct. Conclusion Lidocaine and bupivacaine can determined in human spinal cord pretreat-edwith formaldehyde by HPLC. The method is simple, useful and accurate. It can be applied in the forensic toxicological analysis investigation and other medical studies.

Lung cancer is ranked the first among all malignant neoplastic diseases because of its high morbidity and mortality rate. Thus, lung cancer seriously threatens human health. More than 80%of lung cancer cases are non-small cell lung cancer (NSCLC). Unfortunately, the majority of NSCLC patients are already at the terminal stage of the disease when they seek medical attention. Such patients miss the optimal opportunity of surgery;thus, medical treatment becomes the main choice for them. Recently, molecular-target-ed therapy has made tremendous progress in clinical practice and provides a new potential treatment for patients at the terminal stage. In this review, the authors introduced some molecular-targeted therapeutic drugs to provide benefits for the individualized treatment of patients.

Adult ; Asymptomatic Diseases ; China ; Chondromatosis, Synovial ; diagnostic imaging ; pathology ; physiopathology ; surgery ; Hip Joint ; diagnostic imaging ; pathology ; physiopathology ; surgery ; Hospitals ; Humans ; Male ; Tomography, X-Ray Computed

The levels of cyclic nucleotides(CAMP and CGMP)in the serum and braest tissues of 60 patients with breast cancer or benign breast diseases were measured.It was found that the CAMP level was significantly lower,the CGMP significantly higher and the CAMP/ CGMP ratio was reduced in the serum and breast tissues of the patients with breast cancer.Our findings suggest that CAMP and CGMP might be factors of importance in the origin and development of breast cancer.

To study the expression and significance of CD44 splice variant V6 in squamous cell carcinoma of the tongue. The expression levels of CD44v6 protein were determined immunohistochemically in 40 squamous cell carcinoma of the tongue specimens (24 non metastatic primary tumors and 16 metastatic lymph nodes), 12 squamous cell papilloma and 9 normal tongue mucosa using murine exon V6 specific monoclonal antibody. The CD44v6 overexpression was detectable in 29 of 40 squamous carcinoma of the tongue, in 2 of 12 squamous cell papilloma, in 0 of 9 mormal mucosa, P

Objective To review the experience in diagnosis and treatment of pheochromocytoma in a single center. Methods A total number of 142/145 pheochromocytoma cases treated surgically in our institute from August 2002 to February 2010 were retrospectively reviewed. The mean diameter of tumor was 5.9 cm (1.3- 18. 0 cm). The majority of the tumors (92.9%) were adrenal pheochromocytomas. Ninety-eight patients (69.0 % ) presented initially with hypertension, whereas 44 patients (31%)presented with adrenal incidentaloma. A specific anti-hypertensive pre-surgery preparation with phenoxybenzamine or doxazosine mesylate was started over 1 week before the operation.Of the 142 patients, 91 accepted open surgery, 54 accepted laparoscopic surgery, of which, 5 converted from laparoscopic surgery to open surgery. Results Histopathological results showed that all the cases were pheochromocytoma, while 83 cases were benign, 23 cases were malignant and 37 cases were suspected malignant. Sudden rising of blood pressure during operation was related to the preoperative serum level of catecholamine. Eighty-seven of 98 patients with preoperative hypertension had normal postoperative blood pressure; the remaining 11 patients reduced the dosage of anti-hypertension medication postoperatively. During the follow-up of 3-96 months (median 46 months), 10 of 91patients had a recurrence or metastasis. Six patients died of recurrences or metastasis within 5 years.Conclusions The procedures of qualitative and locative diagnosis of phechromocytoma include clinical manifestations, biochemical tests and imaging investigation. Surgical excision is the fundamental treatment for cure. Patients with high serum level of catecholamine tend to have a sudden rising of blood pressure during operation. Preoperative management is extremely important for the safety of the patient. Intensive follow up is necessary.

Drug therapy is one of the efficient methods for prostate cancer treatment. However, drug resistance greatly hindered the treatment of prostate cancer patients. Herein, the mechanisms of drug resistance in prostate cancer have been exhaustively reviewed, and that can provide an alternative strategy and new targets for anti-prostate cancer therapy.
Drug Resistance, Neoplasm ; Humans ; Male ; Prostatic Neoplasms ; drug therapy

Objective To explore the scanning techniques of piriformis and different ultrasonographic characteristics of normal and abnormal piriformis.Methods A total of 40 cases diagnosed with unilateral piriformis syndrome underwent ultrasonic examination.Then ultrasonic scanning techniques of piriformis were summarized.Contours,thickness and smoothness of epimysium and ultrasonic echo of internal muscle texture of piriformis were compared between the normal and abnormal piriformis.The study was approved by the Third Affiliated Hospital Ethics Committee of Zhejiang Chinese Medical University (Approval no.ZSLL-JS-2016-18).Results Interruption of ultrasonic echo of ilium could be considered as ultrasonographic signs for locating piriformis quickly and accurately.Abnormal piriformis in suffering side of patients with piriformis syndrome showed obscure contours and being thicker than the other side [x2 =9.899,P =0.002;(25.81 ± 0.30)mm vs (22.29 ± 0.27)mm,t =13.604,P =0.000].Moreover,there were significant differences in comparing smoothness of epimysium and ultrasonic echo of internal muscle texture of piriformis between the two sides(x2 =23.226,P =0.000;x2 =54.848,P =0.000).Conclusions Interruption of ultrasonic echo of ilium may be an important sign for locating piriformis.Ultrasound can display piriformis clearly and distinguish ultrasonographic images of normal piriformis accurately from abnormal piriformis,which can be taken as an basis imaging for clinical diagnosis of piriformis syndrome.