Papers on mycorrhizas were searched from SCI (Science Citation Index) database. In order to understand the research progress of mycorrhizas in China, the paper on mycorrhizas from 1989 to 2007 was analyzed with method of bibliometrics. Mycorrhizal researches showed an increasing tendency during 1989 to 2007, while the increase was obviously accelerated after 2000. Only 5.22% of the articles were published in journals with impact factor above 5, indicates that the academic levels of researches need being enhanced. Currently the research on mycorrhizas was mainly focused on Arbuscular mycorrhiza (AM), especially on effects of mycorrhizal fungi on plant physiology, effects of mycorrhizal fungi on resistance of host plants, Mycorrhizal diversity community and ecological distribution, and phytoremediation with Mycorrhizal plants. The future research should emphasize in phytoremediation with Mycorrhizal plants and identification of fungal species with molecular biological technology.

Objective To evaluate the effect of X-ray stereotactic radiotherapy(SRT)with two different methods in curing brain metastases.Methods 41 patients with brain metastases were treated by SRT,including 24 cases by SRT and 17 cases by SRT combined whole brain irradiation.78 lesions in 41 patients fall into two groups:small tumor(3 cm).All patients were followed for 2～19 months after treatment by CT scan.The effect,recurrent and complication were discussed.Results Following SRT,the effect rate was 92.9% in SRT group and 93.7% in SRT combined whole brain irradiation group.The effect rate was 97.4% for small lesions while 90% large lesions.The recurrent rate was much higher in SRT(17%) than that in SRT combined whole brain irradiation group(5.9%),the difference was statistically significant(?

China ; epidemiology ; Humans ; Pneumoconiosis ; epidemiology

Objective To explore the relationship between paraoxonase1 (PON1) L55M gene polymorphisms and atherosclerotic cerebral infarction(CI)in Hunan Han people. Methods The study population was comprised of 153 atherosclerotic cerebral infarction patients and 153 healthy individuals. The PON1-L55M genotypes were determined by restriction fragment length polymorphism. Results MM genotype was not found both in CI and control group. In CI group, genotypic frequency of LL was 96.7% and LM was 3.3%. The allele frequency of L was 0.984 and M was 0.016. In control group, genotypic frequency of LL was 93.5% and LM was 6.5%. The allele frequency of L was 0.968 and M was 0.032. PON1-L55M polymorphism revealed no significant difference of genotype and allelic distribution in CI patients and controls.Conclusion The polymorphism of PON1-L55M is not related to the incidence of atherosclerotic cerebral infarction in Hunan Han people.

Objective: To estimate the preventive effect of mitomycin C (MMC) injection via great omentum vein during resection of intrahepatic cholangiocarcinoma (IHCC) against the recurrence of IHCC. Methods: The clinical data of 73 IHCC patients, who were treated in our hospital form Jan. 2000 to Jun. 2004, were retrospectively analyzed. Thirty-eight patients were injected with 10 mg MMC via great omentum vein during operation; thirty-five patients who received no chemotherapeutic agents were taken as controls. The recurrence of the disease was followed up and was statistically analyzed. Results: Patients in the 2 groups were matchable in sex, age, viral hepatitis, liver cirrhosis, tumor diameter, tumor number, preoperative transcatheter arterial chemoembolization (TACE) or percutaneous ethanol injection therapy (PEIT), blood transfusion, portal vein or bile duct thrombus and postoperative TACE (P>0.05). Multivariate analysis showed that the recurrence was related to the number and diameter of the tumors, with the hazard ratios being 1.877 (P=0.001) and 1.391 (P=0.029 4), respectively; injection of MMC had no influence on the recurrence. There was no significant difference in the time of disease-free survival (DFS)between the 2 groups, with the median time of DFS of MMC injection group being 5 months and of control group being 3 months after the first operation(P=0.125 3). The recurrence rates in the MMC group and control group were 65. 79% vs 68.57% (P=0.800 4) 6 months after operation, 81.58% vs 94.29%(P=0.099 0)1 year after operation, 89.47% vs 97.14% (P=1.679 55) 2 years after operation and 92.11% vs 97.14% (P=0.344 7)3 years after operation. Conclusion: Injection of 10mg MMC via great omentum vein during resection of IHCC may have no definite effect on the recurrence of IHCC; however, perspective study is needed to verify this finding.

AIDS Vaccines ; administration & dosage ; genetics ; immunology ; Animals ; HIV Infections ; immunology ; prevention & control ; virology ; HIV-1 ; genetics ; immunology ; Humans ; Immunity, Mucosal

Diagnostic Errors ; Encephalocele ; diagnosis ; Female ; Humans ; Meningocele ; diagnosis ; Middle Aged ; Mucocele ; diagnosis ; Sphenoid Sinus ; pathology

To observe the preventive effect of polydatin on diabetic myocardial hypertrophy in mice and discuss its and mechanism. The diabetic model was induced with low dose STZ (40 mg x kg(-1) x d(-1) x 5 d, ip) for five days in mice. The myocardial hypertrophy was determined by hypertrophy indexes (LVHI, left ventricular/right ventricle and septum), left ventricular/body weight (LV/BW), the histological examination and the mRNA expression of atrial natriuretic factor(ANF). The fast blood glucose(FBG), serum insulin and plasma hemoglobin A1c ( HbA1c) levels were detected, and then HOMA insulin resistance index ( HOMA. IR) was calculated. The mRNA and protein expressions were measured by qRT-PCR and western blotting, respectively. According to the results, the FBG of the model group exceeded 11.1 mmol x L(-1), with notable decrease in BW and significant increase in insulin, HbA1c and HOME. IR, suggesting the successful establishment and stability of the diabetic model. The increases in LVHI, LV/BW, cell surface and ANF mRNA indicated a myocardial hypertrophy in diabetic mice. Meanwhile, the model group showed decrease in mRNA and protein expressions of PPARβ and significant increase in NF-κB p65, COX-2 and iNOS expressions. After the preventation with PD (50, 100 mg x kg(-1) x d(-1)), diabetic mice showed increase in BW, reduction in the levels of FBG, insulin and HbA1 c, relief in insulin resistance and significant recovery in hypertrophy indexes, indicating PD has the protective effect in diabetic myocardial hypertrophy. Meanwhile, PD up-regulated the expression of PPARβ, inhibited the expressions of NF-κB p65, COX-2 and iNOS, demonstrating that PD's protective effect may be related to the activation of PPARβ and the inhibition of NF-κB, COX-2 and iNOS signaling pathways.
Animals ; Diabetes Mellitus, Experimental ; complications ; Diabetic Cardiomyopathies ; drug therapy ; genetics ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Glucosides ; administration & dosage ; Humans ; Hypertrophy ; drug therapy ; genetics ; metabolism ; Insulin ; metabolism ; Male ; Mice ; NF-kappa B ; genetics ; metabolism ; Signal Transduction ; Stilbenes ; administration & dosage

Objective To investigate the effect and mechanism of exogenous leptin on liver injury in severe acute pancreatitis rat .Methods Thirty male SD rats were randomly divided into the sham operation group ,SAP group and leptin intervention group . The SAP rat models was established by retrograde injection of 3 .5% sodium taurocholate into the biliopancreatic duct .The leptin intervention group was intraperitoneally injected with leptin 20 μg/kg .The rats in each group were sacrificed at 12 h after model‐ing .The pancreas and liver tissues were taken for HE staining and detecting the nuclear factor kappa B (NF‐κB) .The cell apoptosis in situ labeling method was adopted for detecting the liver tissue cell apoptosis index .ALT ,AST and AMY were detected . Results Compared with the sham operation group ,the liver tissue pathology score in SAP group and leptin intervention group were significantly increased(P<0 .05) .The liver tissue pathology scores in the leptin intervention group were lower than those in the SAP group(P<0 .05) .The NF‐κB expression of liver tissue in the SAP group and leptin intervention group was obviously increased compared with the sham operation group ,the expression in the leptin intervention group was decreased compared with the SAP group (P<0 .05) .The liver cell apoptosis index in the leptin intervention group and SAP group was significantly higher than that in the sham operation group (P<0 .05) ,and which leptin intervention group was decreased compared with the SAP group (P<0 .05) . The results of ALT ,AST and AMY in the SAP group and leptin intervention group were increased significantly compared with the sham operation group(P<0 .05) ,while which in the leptin intervention group was decreased compared with the SAP group (P<0 .05) .Conclusion The exogenous leptin may play the protective effect on SAP complicating liver damage by lowering the liver tis‐sue NF‐κB expression and reducing the liver cell apoptosis index .

Objective To study the expression and the clinical significance of glyican-3 (GPC3)in hepatocellular carcinoma (HCC)tissues.Methods Immunohistochemical method was performed to evaluate the expression of GPC3 in 54 cases of HCC tissues,46 cases of para-carcinoma tissues,22 cases of cirrhosis tissues,12 cases of normal liver tissues,the correlation between expression levels of GPC3 and clinicopathologic factors was analyzed.Results GPC3 protein was not expressed in normal livers tissues,the levels of GPC3 (7.39±3.64)and the positive rate (81.48%)in HCC tissues were significantly higher than para-carcinoma tissues (1.15±0.99,13.04%),cirrhosis tissues (0.32±0.56,4.54%),the difference was sta-tistically significant (P <0.05);with the increase of clinical stage ofHCC,the levels of GPC3 were increased,stage Ⅲ/Ⅳ(10.05±3.59)compared with stage Ⅰ (4.31±3.41),stage Ⅱ (7.14±3.63),and the difference was statistically signifi-cant (P <0.05).The positive rate of GPC3 was also increased(stage Ⅰ 69.23%,stage Ⅱ 81.81%,stage Ⅲ/Ⅳ 89.47%) and the difference was not statistically significant (P >0.05);the positive rate in HCC tissues was independent of sex,age, serum HBsAg,alpha-fetoprotein (AFP),tumor diameter,metastasis,clinical stage (P >0.05),only related to the cirrhosis (P <0.05).The high expression rate of GPC3 in HCC tissues was correlated with AFP,tumor diameter,cirrhosis,metasta-sis,clinical stage (P <0.05).Conclusion GPC3 has important clinical significance in the diagnosis of HCC,the expression level of GPC3 associated with the progression of HCC.