Objective It has been demonstrated that para-operative fasting often induce gastrointestinal mucosal atrophy, that, together with the surgically-stress effects, deteriorate the intestinal harrier structure and may further cause gut-origin infection. Parenteral nutrition has been widely employed in the patients undergone surgery or with trauma as a standard nutritional support in many hospitals. It can provide sufficient nutrients, including calories, nitrogen, and minerals for the daily and extra needs during the stress. However, numbers of investigations have proven that long term parenteral nutrition support has no effects on preventing intestinal mucosa atrophy, but indeed, consistently result in down-regulation of mucosal structure. It has been widely accepted in the clinic that enteral nutrition should be chosen as a priority mean, as to parenteral nutrition, to support the patients whenever they can tolerant. However, there are few reports concerning earlier use of enteral nutrition in post-operative patients. The purpose of this study was to evaluate the effects of postoperative earlier enteral nutrition support (24～36 hours) on the patients undergone major surgery. The cases with earlier enteral nutrition feeding during last three years were reviewed and the feeding method, the effectiveness, and the complications of earlier feeding were investigated. In five cases, with two of proximal small intestine fistula, three of pancreas, duodenal injury, the total effectiveness was satisfactory. All patients gained wight and the nutritional states were much improved. The initial disease of the patients with earlier feeding were all cured within the time periods which were significantly shorter than those who had ordinary post-operative feeding. Only one case among five had mild nausea during the feeding, and was settled after anti-nauseas medications. Two cases with proximal small intestine fistula were recovered in four weeks time. We thus conclude that earlier enteral feeding post-operatively is a safe and effective method for those who have major surgery. It benefits bowel barrier function and further improves the recovery after surgery. Besides, earlier enteral feeding is less costly compared to parenteral nutrition, and easy to operate. A more case-based, prospective controlled clinical study should be organized in the future to further evaluate the usefulness of earlier enteral feeding in the patients with surgery.

Colorectal polyps are eminence lesions that protruded from mucosa into lumen,including adenomatous polyps and non-adenomatous polyps. Early detection and resection of adenoma has significance in prevention of colorectal cancer,and the surveillance afterwards is also crucial. Interval cancer is the colorectal cancer that develops between initial negative colonoscopy or all the polyps having cleared and the next colonoscopy. It is an important duty for endoscopists to reduce the incidence of interval cancer. This article reviewed the advances in studies on surveillance after resection of colorectal adenoma and the development of interval cancer.

Objective:To investigate the reliability of tooth color-measuring by using digital cameras.Methods: 3D-Master shade guide system was measured by Canon EOS D60,CRAIC QDI2000 micropectrophotometer and ShadeEye-NCC directly.The data collected from the three methods were analyzed statistically to evaluate the reliability of the data measured by digital cameras.Results:There was no significant difference between the data measured by digital cameras and ShadeEye-NCC statistically;while that existed between the parameters of L* collected by digital cameras and microspectrophotometer were obviously co-related(P

Rheumatoid arthritis is one of the most critical diseases that impair the quality of patients' life, but its pathogenesis has not yet been fully understood. Osteopontin (OPN) is an extracellular matrix protein containing Arg-Gly-Asp (RGD) sequence and has been recently recognized as a potential inflammatory cytokine. It is discovered that OPN plays an important role in the pathogenesis of rheumatoid arthritis. It is a bridge between bone and the immune system. This paper reviewed the pivotal role that OPN plays in the pathogenesis of rheumatoid arthritis.

Liver injury caused by various reasons can lead to the occurrence of liver fibrosis,which is the pathological process from chronic liver disease to liver cirrhosis.Liver fibrosis is caused by the increased synthesis and reduced degradation of extracellular matrix (ECM).ECM is mainly degraded by matrix metalloproteinases (MMP),and therefore,MMP play an important role in the progression and.diagnosis/treatment of liver fibrosis.This article reviews the research advances in the association between MMP and liver fibrosis.

BACKGROUND: Although considerable progress has been made in spinal tuberculosis surgery,considering the particularity of the spine position, the surgical treatment is limited by the body stress and secondary injury due to removal of the internal fixation. Tissue engineering provides a new insight into the treatment of various diseases.Ideal biomaterials instead of traditional internal fixation materials are characterized by non-toxic and non-immune rejections.OBJECTIVE: To explore the biocompatibility and mechanical properties of alginate combined with bone marrow mesenchymal stem cells for repair of spinal tuberculosis.METHODS: Forty New Zealand rabbits were divided into four groups, 10 rats in each group: control group, spinal tuberculosis group, alginate group and titanium alloy group. The control group received no treatment, and in the other groups, boreholes were drilled in the fifth lumbar intervertebral disc and filled with gelatin sponge, and Mycobacterium tuberculosis suspension 0.1 mL (the amount of bacteria, 5 g/L)was then injected to make spinal tuberculosis models.Two months after modeling, simulated L4-5 spinal tuberculosis surgery was performed in the latter two groups, and alginate combined with bone marrow mesenchymal stem cells and titanium alloy internal fixation material were implanted,respectively.RESULTS AND CONCLUSION: One rabbit in the titanium alloy group had local infection and swelling. No rabbit in the alginate group had adverse reactions, such as swelling and local infection. Anteflexion, rear protraction, lateral bending distance and maximum axial pullout force in the alginate group and titanium alloy group were superior to those in the spinal tuberculosis group (P < 0.05), which were close to normal levels (P > 0.05). The above results showed that the alginate gel combined bone marrow mesenchymal stem cells has good biocompatibility with the body after implantation,and the post-implantation spinal stability is good and close to that after implantation of the titanium alloy.

OBJECTIVE:To establish a method for determining the contents of chlorogenic acid and luteoloside in Lonicerae ja-ponicae,and to explore the shelf life of L. japonicae under ordinary temperature and sealed environment. METHODS:HPLC meth-od was adopted. The determination was performed on Agilent Zorbax SB-C18(chlorogenic acid)column and Agilent Zorbax SB-Phe-nyl(galuteolin)with mobile phase consisted of acetonitrile-0.4% phosphoric acid(13:87,V/V),acetonitrile-0.5% glacial acetic ac-id (gradient elution,galuteolin) at the flow rate of 1.0 mL/min. The detection wavelength was set at 327 nm (chlorogenic acid) and 350 nm(galuteolin). The column temperature was 30 ℃,and sample size was 10 μL. RESULTS:The linear range of chloro-genic acid and galuteolin were 10-100 μg/mL(r=0.9986),5-50 μg/mL(r=0.9993),respectively. RSDs of precision,stability and reproducibility tests were all lower than 4.0%. Recoveries were 95.78%-99.70%(RSD=1.46%,n=6)、96.30%-104.31%(RSD=2.93%,n=6). The contents of chlorogenic acid and galuteolin in roller method,baking method and natural drying method of processed L. japonicae were all decreased by 30%-40% after stored for 12 months. CONCLUSIONS:The method is simple, precise,stable and repeatable,and can be used for simultanoue determination of chlorogenic acid and luteoloside in L. japonicae. The contents of active components in L. japonicae decrease significantly after stored for 12 months. It is necessary to establish shelf life standard of L. japonicae,so as to guarantee the effectiveness of drug use in the clinic.

The differentiation and induction of neural stem cells (NSC), the most highlights in neuroscience at present is valuable application potency and great significance in theoretic study. The mechanism of the intrinsic (gene) and extrinsic factor (cytokine, microenvironment) affecting the NSC, and some progress on this field in the current years were reviewed.

Objective To explore the intrauterine disorders that leads to infertility and sterility in women.Methods From March 1993 to March 2008,a total of 2077 patients with infertility received hysteroscopic examination at Nanjing Drum Tower Hospital.Among the patients,531 were diagnosed with intrauterine abnormalities including primary infertility in 172(32.4%) cases,secondary infertility in 315 cases(59.3%),and sterility in 44(8.3%).The clinical data of these patients were analyzed retrospectively.Results The most common cause of infertility and sterility in the patients was intrauterine adhesion(231 cases,43.5%),followed by uterine deformities(152,28.6%) and endometrial polyps(88,16.6%).In the primary infertility group,the most common reason was endometrial polyps,which was detected in 38.4% of the cases(66/172).The rate was significantly higher than that in the secondary infertility group(6.0%,19/315) and sterility group(6.8%,3/44)(?2=80.7630,P=0.000;?2=16.0463,P=0.000).While in the secondary infertility group,intrauterine adhesion was detected in most of the patients(60.6%,191/315),that was significantly more than that in the sterility and primary groups(25.0%,11/44,?2=19.9232,P=0.000 and 16.9%,29/172,?2=86.0747,P=0.000,respectively).For the patients with sterility,the disease was caused by uterine deformities mostly(65.9%,29/44),which is significantly different from the other two groups(secondary group:25.1%,79/315,?2=30.5994,P=0.000;primary group:25.6%,44/172,?2=25.4673,P=0.000).Conclusion The major causes of primary infertility,secondary infertility,and sterility are endometrial polyp,intrauterine adhesion,and uterine deformities respectively.

Objective:To observe the factors of adverse drug reactions in the nervous system.Methods:197 cases of adverse drug events in the nervous system were collected and analyzed in our hospital from January,2007 to December, 2008.Results:In the 197 cases,80 patients(about 40.61%) were above 60 years old,and 149 patients(about 75.63%) were medicated by i.v.183 cases belonged to the scope of ADRs,and the other 14 cases,to ADEs.The main drugs were anti -bacterials which caused ADR/ADE of the nervous system,and the second were traditional Chinese drug preparations. Conclusion:The ADRs in the neurological system were involved in many kinds of drugs,and had many clinical manifestations. The clinicians should pay attention to them.