Objective:To compare the survival of resected gastric cancer patient treated with oxaliplatin, 5-fluorouracil, and leu-covorin (FOLFOX6) with those treated with oxaliplatin and capecitabine (XELOX). Methods:A total of 147 resected gastric cancer pa-tients accepted the treatment. Among them, 99 were treated with FOLFOX6 and 48 were treated with XELOX. Adverse events and sur-vival rates of the two groups were compared. Results:Incidence of leukopenia and hepatic dysfunction in the FOLFOX6 group was sig-nificantly higher than that of the XELOX group (P<0.05), whereas hand-foot syndrome in the XELOX group was significantly higher than that of the FOLFOX6 group (P=0.016). By contrast, the incidence of other adverse events, such as anemia, thrombocytopenia, nau-sea and vomiting, diarrhea, kidney dysfunction, peripheral neurovirulence, and oral mucositis, was not significantly different (P>0.05) between the two groups. After 1, 3, and 5 years, disease-free and overall survivals between the two groups were not significantly differ-ent (P>0.05). Conclusion:The effects of FOLFOX6 and XELOX adjuvant chemotherapies on long-term survival of resected gastric cancer patients were found to have no significant difference.

Objective To evaluate the preventive effect of compound matrine injection on hepatic lesion caused by chemotherapy. Methods 178 patients after gastric and colorectal cancer resection were enrolled into three groups randomly. 56 patients in group A received MFOLFOX6 regimen treatment only, 62 patients in group B received both normal treatment and combined compound matrine injection,60 patients in group C received both normal treatment and glutathione. The change of liver function were observed. Results There was no the hepatotoxicity of Ⅲ-Ⅳ degree in all groups;the incidence of bilirubin and transaminase increasing in group B and C was significantly lower than that group A(P ＜0.05), but the incidence of ALP/GGT increasing showing no significant difference among the three groups; 72.7 % of the incidence of hepatic lesion in group A happened firstly before the seventh cycle,it was 27.3 % and 33.3 % respectively in group B and group C, the time of the emerging of hepatotoxicity in group B and C was markedly delayed than that group A (P ＜0.05); there was not significant difference between group B and group C in both bilirubin and transaminase increasing and the time of the emerging of hepatotoxicity (P ＞0.05). Conclusion Compound matrine injection can prevent and postpone the happening of hepatic lesion caused by adjuvant chemotherapy after digestive tract cancer resection, The result is equal to glutathione. Compound matrine injection also has antineoplastic effects, so the clinical superiority is more obvious.

Objective To evaluate the role of Sonic hedgehog (Shh) signaling pathway in the spinal cord in neuropathic pain (NP) in the rats.Methods Seventy-two male Sprague-Dawley rats,aged 8 weeks,weighing 250-300 g,were randomly divided into 2 groups (n=36 each) using a random number table:sham operation group (S group) and NP group.Spared nerve injury was produced by exposing the sciatic nerve and its branches and ligation and transection of tibial nerve and common fibular nerve in anesthetized rats.The mechanical paw withdrawal threshold (MWT) was measured before operation and at 1,4,7,14 and 21 days after operation.After measurement of the pain threshold at 1,4,7,14 and 21 days after operation,the animals were then sacrificed,and the lumbar segment (L46) of the spinal cord was obtained for determination of Shh,Patched (Ptch),Gli1 and glial fibrillary acidic protein (GFAP)expression (by Western blot),Shh,Ptch and Gli1 mRNA expression (by fluorescent quantitative real-time reverse transcriptase-polymerase chain reaction),and Shh and GFAP expression (by immunohistochemistry).Results Compared with group S,the MWT was significantly decreased,and the expression of Shh,Ptch and Gli1 protein and mRNA and GFAP in spinal cord tissues was up-regulated in group NP (P＜ 0.05).Shh was mainly expressed in the cytoplasm of spinal dorsal horn neurons and in the gap around glial cells.Conclusion Shh signaling pathway in spinal cord is involved in the development and maintenance of NP in the rats.

【Objective】To analyze the structure of N-linked glycans in salivary glycoproteins and amylase of chronic gastritis(CG)patients with spleen deficiency after stimulation of acid,and to explore the relationship of N-linked glycans structure with salivary amylase activity and splenic hypofunction.【Methods】Iodine-spectrophotometry was used to detect the amylase activity in 47 CG patients with spleen deficiency,15 CG patients with dampness-heat in the spleen and stomach,and 12 healthy volunteers before and after acid stimulation.Method of concanacalin A(ConA) affinity chromatography was used to separate total salivary glycoproteins and amylase and to analyze N-linked glycans structure in 27 CG patients with spleen deficiency,14 CG patients with dampnessheat in the spleen and stomach,and 5 healthy volunteers after acid stimulation.ConA affinity reversed-phase two-dimension chromatography was applied to separate total salivary glycoproteins and to analyze the constitute and distribution of total salivary glycoproteins with different N-linked glycans in 13 CG patients with spleen deficiency,6 CG patients with dampness-heat in the spleen and stomach,and 5 healthy volunteers after acid stimulation.【Results】After acid stimulation,salivary amylase activity in CG with spleen deficiency decreased as compared with that before acid stimulation(P

AIM: To study the difference in main chemical composition and content between(Radix et Rhizoma Rhei;Rhizoma Coptidis;Radix Scutellariae) dispensing granules and standard decoction. METHODS: 3D-HPLC was used with MeOH(A)、0.1%H_3PO_4-H_2O(include 0.02 mol/L KH_2PO_4,pH=3)(B) gradient elution,the fingerprint chromatogram of Xiexintang Dispensing Granules and standard decoction were set up. RESULTS: 30 peaks were indicated,the relative retention time and relative peak area were obtained. CONCLUSION: (The) difference between Xiexintang Dispensing Granules and standard decoction is obvious,the contents of the former are higher.

Objective To survey the state of internet addiction of vocational college students and explore the effect of perceived social support and loneliness on Internet addiction.Methods In accordance with random cluster sampling,this research used the Revised Chen Internct Addition Scale,Perceived Social Support scale,and UCLA Loneliness Scale to study lnternet addiction among a total of 1 602 vocational college students from three higher vocational colleges in Guangzhou.Results [nternet addiction rate was 9.87％,and Internet dependence rate was 24.78％.Internet addiction had a higher incidence rate among male students than that among female students (x2=19.775,P＜0.01).The perceived social support group of vocational college students was low,which indicated serious loneliness based on the Loneliness Scale,and their scores on Internet addiction tendency were higher than those of other groups (P＜0.01).The total scores in Internet addiction tendency and perceived social support were negative (r=-0.183,P＜ 0.01),which indicates positive correlation with loneliness (r=0.243,P＜ 0.01).The mediating effect of perceived social support and Internet addiction on loneliness was significant,with a mediation rate of 69.63％.Conclusion Internet addiction tendency of vocational college students is a problem that deserves more attention.Low social support and loneliness can increase the incidence rate of internet addiction tendency.Loneliness is also found to be a strong predictor of internet addiction.

AIM: To study the difference in main chemical composition and content between Mahuangtang Herb Ephedrae;Radix et Rhizoma Gly Cyrrhizae;Ramulus Cinnamoni;Semen Armeniacea Amarum;dispensing granule and its standard decoction. METHODS: RP-HPLC was used to create fingerprinits with MeOH-0.01 mol/L KH_2PO_4(H_3PO_4 adjusted pH=3),a gradient eluting agent. RESULTS: 26 co-possessing peaks were indicated,the retention time and relative peak area were obtained. CONCLUSION: The difference between Mahuangtang dispensing granule and standard decoction is not obvious,the former is rational.

Objective To study the expression and clinical meaning of tight junctions protein regulator PKC θ in human meningioma tissue.Method The expression of PKC θ in 30 non-invasion and 30 invasion meningioma tissue is tested by using immunohistochemistry S-P method,with the goal of analyzing the relationship between the expression of PKC θ and pathology character.Results The positive rate ofPKC θ in invasion meningioma tissue is obviously lower than in non-invasion meningioma tissue.The difference is significant(P<0.05)Conclusions The lower expression of PKC θ in invasion meningioma tissue pmbably affects occurrence and invasion of the meningioma by ehang4ng the structure and function of TJs.

Objective To investigate the effects of propofol on the spontaneous transient outward K+ currents in mouse cerebral arterial smooth muscle cells.Methods Kunming mice of both sexes,weighing 18-22 g,were used in this study.Vascular smooth muscle cells were freshly isolated from cerebral arteries in two steps.Five cells were chosen and studied.When holding potential was - 30 mV,spontaneous transient outward K+ currents were recorded before and after the application of 56 μmol/L propofol by perforated whole-cell patch-clamp technique.The amplitude,frequency,area under the curve and half time width of spontaneous transient outward K+ currents were analyzed.Results Propofol 56 μmol/L significantly increased the amplitude,frequency and area under the curve of spontaneous transient outward K+ currents.There was no significant change in the half time width of spontaneous transient outward K+ currents after administration,Conclusion Propofol can activate spontaneous transient outward K+ currents in mouse cerebral arterial smooth muscle cells,and thus induces vascular smooth muscle relaxation.

BAcKGROUND:In recent years,the pedicle screws fixation technique,which is used in fixation for atlantoaxial instability associated with trauma,severe degeneration and tumorectomy,has been developed.However,this kind of technique easily causes several complications,including malpositional screws,vascular injuries,and even vertebral artery injury.Based on the biomechanical characteristics of memory alloy and determination of atlantoaxial data,a neotype shape memory alloy cervical hook was designed to treat atlantoaxial instability.OBJECTIVE:To investigate the biomechanieal characteristics of the neotype shape memory alloy cervical hook for atlantoaxial instability.DESIGN,TIME AND SETTING:Repeated measurement analysis of variance test was performed in the Laboratory of Clinical Anatomy and Medical Biomechanics,Southern Medical University between March and April 2008.MATERIALS:Eight fresh adult craniocervical specimens(C0-C4)were provided by Department of Clinical Anatomy,Southern Medical University.Atlantoaxial neotype shape memory alloy cervical hook(50.8%-51.8%nickel and the remaining part was titanium)was fabricated by Shanghai Xinchang Memory Alloy Co.,Ltd.METHODS:The included eight C0-C4 specimens were used to test three-dimension ranges of motion(ROM)by fixation and neotype shape memory alloy cervical hook fixation.Then,the positions of spine varying from no loading to the maximum loading status were scanned and analyzed using image processing software to determine the three-dimensional ROM under different statuses.MAIN OUTCOME MEASURES:Three-dimensional ROM of tested specimens.RESULTS:Neotype shape memory alloy cervical hook fixation and Germany AESCULAP SSE hanger fixation had similar flexion-extension range of motion(P=0.595).Lateral bending three-dimensional ROM was greater in the neotype shape memory alloy cervical hook fixation group than in the Germany AESCULAP AAE hanger fixation(P< 0.05).The rotatory three-dimensional ROM was smaller in the neotype shape memory alloy cervical hook fixation group than in the Germany AESCULAP AAE hanger fixation(P<0.05).CONCLUSION:Neotype shape memory alloy cervical hook fixation had comparative post-surgery immediate stability with the Germany AESCULAP AAE hanger fixation.Neotype shape memory alloy cervical hook fixation produced a little worse biomechanical lateral bending stability and a little better biomechanical rotatory stability than Germany AESCULAP AAE hanger fixation.