Supplementary concept records ( SCB ) can effectively supplement and expand MeSH by forming the mapping between SCB and MeSH. Chinese herbal medicine terms indentified by MeSH Browser in SCB were analyzed in aspects of their distribution,single medicine,abstracted compositions,compound prescription,classical prescription, slef-made prescription, and use frequency,which showed the supplementary concepts in relation with Chinese herbal medicine and the existed problems. Suggestions were put forward for the use of Chinese herbal medicine terms in MeSH SCB, such as promoting their standardization, and use of standard terms when scientists publish their papers and retrieve papers from databases.

Objective To investigate the regulation of blood-testis barrier by Rab13-PKA pathway in rats.Meth-od First, shRNA vector targeting at Rab13 was constructed and then the Rab13 shRNA was transfected into the rat testis by injection.Western blot was used to detect the knock-down effect of Rab13 and the expression of blood-testis barrier ( BTB) constituent proteins.PKA activity was detected by autoradiography and scintillation counting.Further, immunoflu-orescence analysis and phalloidin staining were applied to observe the distribution of occludin and F-actin, respectively. Results The expression level of Rab13 in the testis was reduced by approximately 70%after transfection of Rab13 shRNA as compared with the non-targeted control group ( P<0.01 ) , while the expression of BTB constituent proteins remained unchanged.PKA activity was significantly increased after Rab13 RNAi transfection (P<0.01).The distribution of occlu-din at BTB was remarkably increased after Rab13 RNAi silencing around stage VIII but not at other stages of the seminifer-ous epithelial cycle.The assembly of F-actin at BTB was also intensified in Rab13-silenced testis.Both the changes of dis-tribution of occludin and F-actin induced by Rab13 shRNA were found to be antagonized by the PKA specific inhibitor H89.Conclusions Rab13 can modulate the distribution of occludin and F-actin at the blood-testis barrier in rats by regu-lating PKA activity, which may participate in the regulation of BTB function.

Objective To establish a rapid,accurate and sensitive method for the determination of toluene diisocyanate(TDI) in plastic playground.Methods The samples were distilled continuously for 12 hours by acetone at 80-85 ℃ in water bath,and after centrifuged,precipitated and filtered,separated by using GC1490,7% SE-30 column,the contents of TDI in the samples were determined by gas chromatography.The qualitative and quantitative analyses were carried out by the retention time and peak area respectively.Results The linear range of the method was 0.001 30-0.043 80 mmol/L.Regression equation was y=28 612x-29.336,with r=0.999,and the limit of detection was 0.001 30 mmol/L.The rates of recovery ranged 100.8%-103.6%,with RSD of 5.7%.Conclusion The developed method was rapid,accurate,sensitive and is applicable to the determination of TDI inplastic playground.

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.

Objective To study the effect of postoperative adjuvant transarterial chemoembolization (TACE) on prognosis of patients after radical resection of primary hepatocellular carcinoma.Methods A retrospective analysis was conducted on 311 patients with primary hepatocellular carcinoma treated from 2002 to 2008 in Quanzhou First Hospital affiliated to the Fujian Medical University.Utilizing the COX regression model and the Kaplan-Meier analysis,the effects of adjuvant TACE on prognosis of both the high risk group (n =76) and the low risk group (n =91) with tumor ≤5 cm,as well as both the high risk group (n =65) and the low risk group (n =78) with tumor ＞ 5 cm were determined.The low risk group was defined as patients with a single tumor and without vascular invasion,while the high risk group was defined as patients with multiple tumors or with vascular invasion.Results The postoperative overall survival rate of the high risk group who underwent postoperative adjuvant TACE with tumor ＞ 5 cm was higher than that of the high risk group who did not undergo postoperative adjuvant TACE (P ＜ 0.05).However,whether or not postoperative adjuvant TACE was given had no effect on prognosis in the other subgroups of patients (P ＞ 0.05).Conclusion Postoperative adjuvant TACE was beneficial to the high risk group of patients with tumor ＞ 5 cm after radical resection of primary hepatocellular carcinoma.

Objective To explore the impact of advanced glycation end-products ( AGEs) on matrix metalloproteinase 2 ( MMP-2) expression in cultivated INS-1 cells. Method INS-1 cells were cultivated and MMP-2 expression was analyzed. Glycated serum was prepared for incubating with INS-1 cell. Reactive oxygen species (ROS) was detected by flow cytometry. The intracelluar MMP-2 expression was analyzed by RT-PCR, realtime PCR and Western blot. The MMP-2 cDNA was expressed in cultivated INS-1 cells. Result The level of ROS treated with AGEs was significantly higher than that in the control( P<0.05 ) , and the levels of MMP-2 and its protein expressions turned out as well( P<0. 05). Conclusion The results suggest that MMP-2 was expressed in INS-1 cells. Increased MMP-2 expression in ?cells may be induced by AGEs, suggesting that MMP-2 might play an important role in oxidative stress-mediated islet injury.

Objective To evaluate the effect of postural drainage assisting trachea suction on meconium aspiration syndrome. Methods Total 61 cases of asphyxia neonates with MAS who were born in our hospital from Jan,2007 to Dec,2008, were divided into control group (24 cases) and observing group( 37 cases). The neonates in control group had endotracheal suction directly after intubation. But the infant in observing group was treated with endotracheal suction after postural drainage. The amount of suction from endotracheal tube,the complication of MAS and the outcome of these newborns were evaluated. Results The total amount of meconium drainage from endotrachea in observing group was statistics significantly more than that in control group [( 2. 16 ± 1.82) ml vs ( 1.23 ± 0. 97 ) ml, P ＜ 0. 05 )]; The intubating times in observing group were statistical significantly less than that in control group[( 1.19 ± 0. 46) vs ( 1.79 ± 0. 83 ) times, P ＜0. 01 ). The incidence of complication in observing group was 8. 11% ,which was significantly lower than that in control group(29. 17% ,P ＜0. 05). There were shorter needing oxygen time [(21.30 ± 22. 38) h vs (52. 91 ±39. 20) h,P ＜0. 01]and shorter hospitalization days [(9. 24 ±3.94) d vs ( 14. 39 ±6. 49) d,P ＜0.01 )]in observing group than those in control group respectively. The mortality in control group was 4. 17%, and no death occurred in observing group. Apgar scores of the first minute was similar in both groups ( P ＞ 0. 05 ). But there was significant difference(70. 16% vs 58. 34% ,respectively;P ＜0. 05) in the fifth minute Apgar scoring of 8 ～ 10 scores between the observing group and the control group. Conclusion Postural drainage assisting endotracheal suction may remove meconium in trachea effectively, decrease the complications of MAS and shorten the oxygen days and hospitalization time.

Objective To study the feasibility, efficacy and safety of laryngeal mask airway (LMA) in neonatal resuscitation. Methods Totally, 369 neonates requiring positive pressure ventilation at birth were randomized into two groups by offering either LMA resuscitation (205 cases) or bag-mask ventilation (BMV) resuscitation (164 cases). The effect in the two groups were observed. Results (1) No significant difference was observed in Apgar scores at 1 min between LMA group and BMV group, but the neonates having higher Apgar scores at 5 min in LMA group were more than in BMV group (x2 =-3. 39,P=0. 001). The successful resuscitation rate of LMA group was higher than that of BMV group (99.02%vs 84. 15% ,x2 =28. 76, P＜0. 01), the total ventilation time of LMA group was shorter than that of BMV group [(36.4±23.7) s vs (66.2±35.4) s] (t=-8.66, P＜0. 01). Among severe asphyxia neonates,seven of nine were successfully resuscitated by LMA, while in BMV group six neonates with severe asphyxia were all switched to endotracheal intubation ventilation. In neonates with Apgar score of 4 to 5 at 1 min after birth, the successful resuscitation rate of LMA group was higher than that of BMV group (100% vs 42. 86%, x2 =23.04, P＜0.01), the ventilation time of LMA group was shorter than that of BMV group [(54.6±33.6) s vs (136.4±42.0) s] (t= -4. 45, P＜0.01). In neonates with Apgar score of 6 to 7 at 1 min after birth, there was no significant difference in the successful resuscitation rate between LMA and BMV group. (2) The successful rate of LMA insertion at first attempt was 98.54% (202/205) and the average insertion time was (7.8 ± 2. 2) s. The adverse effects included vomiting(4 cases)and regurgitation (3 cases). Conclusions In neonatal resuscitation, LMA can be easily inserted. Compared to BMV, LMA is a better choice in resuscitation for neonates with moderate or severe asphyxia and preferable for those medical staffs who are unfamiliar with endotracheal intubation, or even as a substitute of endotracheal intubation ventilation.

OBJECTIVE To investigate the toxicological effect of patulin(PAT)on the growth of human normal liver cells L-02 and its possible mechanisms. METHODS After cells were treated with PAT 1.25, 2.5,5,10 and 20μmol·L-1 for 24 or 48 h,cell viability was examined using MTT assay. L-02 cells were treated with PAT 5 and 10 μmol · L- 1 for 24 h ,respectively. Cytomorphology and mitochondrial membrane potential (MMP) were observed under a fluorescence microscope. Apoptosis,MMP and reactive oxygen species (ROS)were analyzed by flow cytometry. Mitochondria apoptosis pathways were detected by Western blotting. RESULTS PAT exhibited a strong inhibitory effect on L-02 in a concentration-dependent and time-dependent manner. IC50 of PAT treatment for 24 or 48 h was 6.61 and 2.78 μmol · L-1,respectively. MMP was decreased,while the percentage of low MMP cells increased from(9.2±2.3)%in controls to(23.4±4.5)%( PAT 5μmol·L-1)and(47.1±5.5)%(PAT 10μmol·L-1), respectively. Compared to untreated cells,the early apoptosis population increased from(3.8±1.1)%to(29.8±4.5)%( PAT 5μmol·L-1)and (24.1±6.2)%(PAT 10μmol·L-1)(P<0.01),respectively. Further?more,the accumulation of ROS was also observed. The effect of PAT on ROS and cell viabilities could be attenuated by glutathione. CONCLUSION PAT can significantly inhibit the growth of L-02 and induce apoptosis via ROS-dependent mitochondria pathways.

Objective To compare the bronchial blocker and double-lumen tube for one-lung ventilation in patients undergoing esophageal cancer resection.Methods Forty ASA physical status Ⅰ-Ⅲ patients of both sexes,aged 42-63 yr,scheduled for elective esophageal cancer resection,were randomly divided into 2 groups (n =20 each):double-lumen endotracheal tube group (group DLT) and bronchial blocker group (group BB).After induction of anesthesia,the patients were intubated with a left-sided double-lumen endotracheal tube and correct positioning was verified by fiberoptic bronchoscopy in group DLT.After induction of anesthesia,the patients were intubated with a conventional single-lumen endotracheal tube,and then the bronchial blocker was inserted under the guidance of fiberoptic bronchoscope in group BB.The intubation time,one-lung ventilation time,time to achieve lung collapse,operation time,extubation time,tube malposition and hypoxemia were recorded.The lung collapse was scored at the end of operation.Hoarseness and throat sore within 2 days after extubation and pulmonary infections within 7 days after operation were recorded.Results Compared with group DLT,intubation time and time to achieve lung collapse were significantly prolonged,and the incidence of hoarseness and throat sore within 2 days after extubation was decreased in group BB (P ＜ 0.05).There was no significant difference in the one-lung ventilation time,operation time,extubation time,lung collapse score,incidence of tube malposition,hypoxemia and pulmonary infections within 7 days after operation between the two groups (P ＞ 0.05).Conclusion The efficacy of bronchial blocker is similar to that of double-lumen tube when used for one-lung ventilation in patients undergoing esophageal cancer resection.