It was found that the inhabitants in Cangshan County, Shandong Province usually take fresh garlic as daily food, e.g. in Shenshan People's Commune each person takes about 20 grams of fresh garlic every day. The mortality from gastric cancer for the inhabitants in Cangshan was found to be significantly lower than that in Qixia County where the inhabitants rarely take garlic. It was also found that the nitrite concentration in gastric juice of the inhabitants in Cangshan was significantly lower than that in Qixia. The reduction rate (%) of nitrite concentration in gastric juice after the introduction of 10 grams of fresh garlic in the form of homogenate was significantly larger than that of control test (p

This paper reported that the nitrite concentration, pH value, total living bacteria and the percentage of nitrate-reducing bacterium strains in the gastric juice of the residents in Cangshan county who usually take garlic were significantly less than those in Qixia county who rarely take garlic. It was also shown that garlic homogenate, ethyl ethanethiosulfonate (an active principle of garlic) all could inhibit the growth of nitrate-reducing bacteria and their production of nitrite in vitro. This may be considered as a protective factor against gastric cancer.

Objective To know water quality of different sectors of Yangtse River after the Three Gorges reservoir kept 135 m water level. Methods Eight locations in six cities sectors(Fengdu,Wushan) of Yangtse River were selected as the monitor point and water samples were collected according to the related national standard (GB12997,1991). 96 samples were collected in May and August, 16 parameters (pH, DO, BOD5, CODCr, Ar,OH, TCN,As, Hg, Cr6+, oil, Pb, Cd, NH3,N, TP, TN, CODMn) of every sample were detected based on the methods documented in the related national standards and compared the results with the results of past years. Results 135 m water level had no significant influence on the water quality of different sectors of Yangtse River(II, III grade). Water quality had no significant change before and after 135 m water level emerged the primary contaminations which effect water quality were total nitrogen and total phosphors. Conclusion No significant change of water quality of Yangtse River has been seen after the Three Gorges reservoir kept 135 m water level.

Geographic distribution of Polyporus umbellatus was predicted by using distribution records. Based on 42 distribution records from 12 provinces and bioclimatic data (1950-2000), georaphic distribution of P. umbellatus was modeled using Maxent. The results showed thatthe Receiver Operating Characteristic (ROC) curve analysis method was used to assess the accuracy of MAXENT model and the area under ROC curve (AUC) value of MAXENT was 0. 960 which suggested that the result of assessment was dependable. The geographic distribution pattern of were divided into three distribution block based on distribution values of 0.5-0.8: small area of Heilongjiang, Jilin, Liaoning and Hebei province, the board area of Yunnan, Guizhou and Sichuan, the southeast area of Tibet and the most area of Shanxi and Shannxi, the southeast board area of Shannxi, Gansu and Ningxia. Jackknife Test showed that average precipitation in warm seasons had the greatest contribution to the distribution gain of P. umbellatus, followed by mean temperature of driest quarter and annual mean temperature. The object suggests the potential distribution areasof P. umbellatus which is useful for the habitat conservation and introduction of P. umbellatus.
China ; Ecosystem ; Entropy ; Polyporus ; growth & development

This study was conducted to investigate the physicochemical properties of Polyporus umbellatus sclerotial exudate. Morphological characteristics of the sclerotia and its exudate were observed during different stages of sclerotial formation. The pH of the exudate was detected at different time during cultivation. A phenol-sulfuric acid method was employed to determine the polysaccharide content of P. umbellatus sclerotial exudate during cultivating time. Additionally, the protein content was measured by means of BCA protein assay. Furthermore, CAT content was detected using ultraviolet absorption method. That the protein content of the exudate and CAT specific activity rose gradually during the passage of the cultivating time indicated a high level of oxidative stress during P. umbellatus sclerotial exudate formation. The results showed that the pH of the exudate increased gradually and then dropped down during sclerotial formation. That the pH of the exudate maintained the acidity state during the cultivation indirectly indicated that acidic environment would help sclerotial formation. The exudate produced gradually and was absorbed by the sclerotia itself.
Culture Media ; chemistry ; metabolism ; Fungal Proteins ; chemistry ; metabolism ; Fungi ; chemistry ; metabolism ; Hydrogen-Ion Concentration ; Medicine, Chinese Traditional ; methods ; Oxidative Stress ; Polyporus ; chemistry ; metabolism ; Polysaccharides ; chemistry ; metabolism

Objective To investigate the characteristic of autoantibodies of M-type phospholipase A2 receptor (PLA2R) in serum and the glomerular IgG subclass deposits in undetermined atypical membranous nephropathy (MN) patients.Methods From Feb 2004 to Nov 2011,53 cases diagnosed as MN by kidney puneture biopsy in our hospital were included into the study.There were 20 undetermined atypical membranous nephropathy (UAMN),20 idiopathic membranous nephropathy (IMN) and 13 secondary membranous nephropathy (SMN) which were composed of lupus membranous nephropathy (LMN) and HBV related membranous nephropathy (HBV-MN).Clinlical and pathological characteristics were analyzed.The autoantibodies of PLA2R in serum were detected and the glomerular IgG subclass deposits were observed.Results (1) The average age underwent renal biopsy was (37.9±3.8) years of UAMN,(50.1±3.0) years of IMN and (49.5±4.5) years of SMN.The difference in onset average age at disease was significant between UAMN and IMN (P =0.0178).The female/male ratio (F/M) in UAMN,IMN and SMN was 0.8∶ 1,0.7∶1 and 0.6∶ 1(P ＞ 0.05).(2) Compared with SMN,the level of 24-hours urinary protein excretion (3.47 g vs 7.89 g,P =0.023),the ratio of amount urinary protein patients (50.0％ vs 84.6％,P=0.043),the level of serum IgG [(8.40±3.58) g/L vs (10.09±4.69) g/L,P =0.025] and the positive rate of ANA in serum (10.0％ vs 53.8％,P =0.006) in UAMN were all much lower.There were no significant statistical differences in serum albumin,serum creatinine,eGFR,positive rate of HBsAg,HBeAg or HCV,as well as the ratio of hypo-albuminemia and nephrotic syndrome among the three groups.(3) IF positive rate of IgA,IgM and C1q in UAMN were all significantly higher than that in IMN (P ＜ 0.01).There were no significant differences in IF positive rate of IgA,IgM,C1q,IgG and C3 between UAMN and SMN.The IF strength of IgA,IgG,IgM,C3 and C1q in UAMN showed no significant differences between UAMN and SMN.(4) The serum autoantibodies of PLA2R were only detected in 10 cases of IMN group (50％) with all the other cases negative.This detection rate of serum autoantibodies of PLA2R showed significant statistical differences among the three groups (P ＜ 0.01),but no differences between UAMN and SMN (the detection rate in both groups were 0％).(5) IgG1 deposits was the dominant IgG on the glomeruli in UAMN group (40％),as well as in SMN group (76.9％).IgG4 deposits was the dominant IgG on the glomeruli in IMN group (60％).The positive rate of IgG1 and IgG3 in UAMN showed no significant statistical differences when compared with IMN or SMN.The positive rate of IgG2 in UAMN was significantly lower than in SMN (30.0％ vs 69.2％,P ＜ 0.05).The positive rate of IgG4 in UAMN was significantly lower than in IMN (20％ vs 60％,P ＜ 0.05).The positive rate of IgG1,IgG2 and IgG3 in SMN were all significantly higher than in IMN.Conclusions None of the UAMN group had autoantibodies of PLA2R in serum,and IgG1 deposits was the dominant IgG subclass on the glomeruli which indicated the similarity with the SMN group.At the same time,UAMN was significantly different from SMN in clinical manifestations.

This paper introduces the development of the MEMS at home and abroad,besides the key technology,the application in medicine and military about the MEMS also expounded in detail.

An improved method was described for the determination of tryptophane in foods (maize, rice, millet, wheat, soybean, milk powder substitute, fish protein concentrate and casein) hydrolyed by cyanide-activated papain. The color-deyeloping agent was a mixture of equal volume of 30N sulfuric acid and glacial acetic acid containing 2% acetic anhydride and 27mg% FeC13.6H2O, and its intensity was measured with spectrophotometer at absoption maximum 545nm. The sensitivity was 0.2?g of tryptophane per ml of tested solution through 1cm length. The recovery was found to be between 96-104%. By comparing noncyanide and cyanide-activated papain for analysis of varieties of maize the mean tryptophane values were 50.1 mg% and 68.7mg% respectively, and the difference was very significant (p

ObjectiveTo investigate the effect of pravastatin on serum levels of interleukin-6(IL-6) and tu- mor necrosis faetor-α(TNF-α) in patients with acute coronary syndromes(ACS). Methods50 patients with ACSwere randomly divided into pravastatin group( n = 25) and routine therapy group( n = 25). Serum TNF-α and IL-6levels were measured before and four weeks after the two treatment options respectively. ResultsThe level of TNF- α and IL-6 were higher than routine therapy group before therapy(P < 0.01 ). The level of TNF-α and IL-6 weredecreased significantly after pravastatin therapy,and higher thancontrols(P < 0.05). The levels of TNF-α and IL-6changed only slightly after the routine therapy(P > 0.05). ConclusionThe level of TNF-α and IL-6 becominghigher in ACS patients may be related to the pathogenesis of ACS. Pravastatin can reduce serum level of TNF-α and IL-6 contributing to treatment of ACS.