After comparing the varieties of parameters in batch culture under different dissolved oxygen tension by Bacillus pumilus, we found that the demand of cell on oxygen in different phase isn' t consistent. Based on the analys is of the metabolic pathway of oxygen and the mechanism of the effect of dissolved oxygen tension on fermentation of D-ribose, a two-stage oxygen-supply control mode was proposed and experimentally proved to be available. High ribose yield and high glucose consumption rate were achieved during whole process for 44h, and the ultimate ribose concentration and cell concentration were 5.0% and 18.8% higher than former respectively.

Objective To study the mechanisms of Curcumin-induced apoptosis on human gastric cancer cell line SGC-7901.Methods SC,C-7901 cells were treated with various concentrations of Curcumin and the growth inhibition rates of it were accessed by MTT method.Apoptosis of gastric cancer cells were in- spected by flow cytometry.The expression of Fas and survivin in gastric cancer cells were evaluated by west- ern blot.Results Curcumin could effectively inhibit the growth of gastric cancer cells in dose-dependent and time-dependent manners,the sub-peak appeared and the apoptotic rate was increased.The expressions of Fas was higher in Western blot,meanwhile,the expressions of survivin was decreased.Conclusion Curcumin could significantly inhibit the growth and induce apoptosis of gastric cancer cells(SGC-7901),Curcumin could probably through up-regulating Fas and down-regulating surviving to induce apoptosis.

AlM:To study the relationship between JAK-STAT pathway and epithelial - mesenchymal transition in human lens epithelial cells. Meanwhile, the function of AG490 as a JAK inhibitor was also demonstrated in this article.
METHODS:Human lens epithelial cells SRA01/04 ( LECs ) were treated by low concentration of glucose (5. 5mmol/L). High concentration of glucose (30. 5mmol/L) was used to treat the cells in order to form the high glucose model. According to adding AG490 or not, cells were divided into the control group and the experimental group, appropriate concentration 10ü mol/L and 50ü mol/L of AG490 were chosen and acting time of 6, 12, 24, 48h were selected. Effect of AG490 on cell migration was measured by wound healing test. The expression of TGF-β1 , FN,α-SMA mRNA were examined by RT-PCR.
RESULTS:With the prolonged acting time ( 6, 12, 24 and 48h), cell activity increased in the HG group, as well as more expression of TGF-β1 , FN,α-SMA mRNA were detected compared to the LG group (P<0. 05). ln AG490 group, the cell migration activity and expression of TGF-β1 , FN,α-SMA mRNA decreased compared to the HG group (P<0. 05).
CONCLUSlON:JAK-STAT pathway takes part in high glucose-induced epithelial-mesenchymal transition in human lens epithelial cells. The mechanism is that it impacts the transcriptional expression of TGF- β1 and extracellular matrix. AG490, a JAK inhibitor, inhibits high glucose-induced epithelial-mesenchymal transition in human lens epithelial cells, And the inhibition enhances with the increasing concentration of AG490.

?AlM:To compare the anti-inflammatory effects with lotrprednol-tobramycin and tobramysin-dexamethasone eyedrops after phacoemulsification combined intraocular lens implantation.
? METHODS: ln this prospective, comparative, randomized controlled trial, patients with senile cataract who underwent phacoemulsification combined intraocular lens implantation in our hospital from January 2014 to October 2014 were enrolled, which were randomly divided into two groups. Patients were given lotrprednol -tobramycin ( LE/T group ) and dexamethasone-tobramysin ( D/T group ) eyedrops respectively. Preoperative and postoperative intraocular pressure, malnutrition inflammation score, bruggrmann comfort scale were observed.
?RESULTS:A total of 143 eyes of 143 cases were enrolled, of them 81 cases were in the LE/T group and 62 in the D/T group. There were no statistically significant differences between the two groups in malnutrition inflammation score and bruggrmann comfort scale. The average intraocular pressure was 16. 5±3. 1mmHg in D/T group after 14d postoperation, which was obviously higher than LE/T group ( 14. 7± 3. 7mmHg, P = 0. 004 ). After 14d postoperation, the intraocular pressure of 2 cases were > 21mmHg, which were back to normal after drug withdrawal.
? CONCLUSlON: The anti - inflammatory effects lotrprednol-tobramycin and tobramysin-dexamethasone eyedrops are similar after phacoemulsification. However, lotrprednol-tobramycin has little influence in intraocular pressure, and more safety.

Objective To explore the variance of plasma brain natriuretic peptide (BNP) concentrations in the aged patients after noncardiac surgery and its significance. Methods 101 patients undergoing elective noncardiac surgery were divided into two groups based on the BNP concentrations before surgery: group A: BNP≤100 ng/L，n=61; group B: BNP>100 ng/L，n=40. The BNP concentrations before and after noncardiac surgery and the incidence of cardiac events in both groups were compared. Results There was no significant difference （P>0.05） of BNP concentrations before and after noncardiac surgery in group A, which were (58.2±28.7) ng/L and (53.7±25.9) ng/L respectively, but was significant difference （P<0.05） in group B, which were (147.3±72.1) ng/L and (341.5±92.4) ng/L respectively. There was significant difference （P<0.05） between group A, in which no patient happened cardiac event, and group B, in which 14 patients happened. Conclusion The plasma BNP concentration would be increased significantly in the aged patients with a BNP concentration>100 ng/L before surgery, which may cause more cardiac events.

Abstract: Objective　To understand the changes of newly emerging and re-emerging snail areas in Anhui from 2017 to 2021 and analyze its related influencing factors, so as to provide scientific basis for formulating snail control strategies. 　　Methods　According to the historical snail survey data, the information of newly emerging and re-emerging snails from 2017 to 2021 were collected, the causes for the formation of newly emerging and re-emerging snails flourish environments were investigated and analyzed retrospectively. Results During 2017-2021, in Anhui, the area with newly emerging snails was respectively 840.41 hm2, 559.14 hm2 (66.53%) in lake and marshland areas and 281.27 hm2 (33.47%) in hilly areas; the area of re-emerging snails was respectively 1 176.87 hm2, 669.39 hm2 (56.88%) in lake and marshland areas and 507.48 hm2 (43.12%) in hilly and mountainous areas. The sum of newly emerging snail area in Chizhou, Anqing and Wuhu accounted for 89.35% of all, the sum of re-emerging snail area accounted for 88.82%. In 2021, the areas with newly emerging and re-emerging snails peaked at 611.52 hm2 and 976.84 hm2, respectively. The newly emerging and re-emerging snail habitats were mainly distributed in the transmission interruption areas, accounting for 65.54% and 84.30%, respectively. The newly emerging and re-emerging snail habitats were mainly found in fluvial marsh, accounting for 65.54% and 52.12%, respectively. In recent 5 years, the longest time interval of re-emerging snails was more than 50 years. The main causes of newly emerging snails were natural factors such as flood disaster and snail drift along river system. Natural factors, such as flood disaster and snail drift along river system, were the main reasons for the newly emerging snail habitats, accounting for 71.44% and 21.75%, respectively. Human factors, such as soil extraction from snail habitats, construction of water conservancy facilities, farmland abandonment and seedling transplanting, could also lead to the newly emerging snail habitats. Flood disaster was the main cause of re-emerging snail habitats, accounting for 72.29%. In addition, the re-emerging snail habitats were caused by historical snail residue, soil collection in snail habitats for construction projects, land abandonment, seedling transplanting, prohibition of snail control in ecological protection areas, and construction of water conservancy facilities. Conclusions　Flood disaster is an important factor for snail newly emerging and re-emerging. Human factors such as engineering construction and seedling transplanting are also easy to cause snail newly emerging and re-emerging. In order to timely detect and deal with newly emerging and re-emerging snail habitats and prevent snail diffusion, it is necessary to investigate snail distribution after flood disaster, the routine monitoring of historical snail habitats should be strengthened; in engineering construction and seedling transplanting, the disposal of soil with snails should be done well.

The liver injury induced by Polygonum multiflorum Thunb. (PM) was investigated based on idiosyncratic hepatotoxicity model co-treated with lipopolysaccharide (LPS) at a non-hepatotoxic dose. Sprague-Dawley (SD) rats were intragastrically administered with three doses (18.9, 37.8, 75.6 g crude drug per kg body weight) of 50% alcohol extracts of PM alone or co-treated with non-toxic dose of LPS (2.8 mg·kg(-1)) via tail vein injection. The plasma alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities were assayed and the isolated livers were evaluated for histopathological changes. The dose-toxicity relationships of single treatment of PM or co-treatment of LPS were investigated comparatively to elucidate the idiosyncratic hepatotoxicity of PM. The results showed that no significant alterations of plasma ALT and AST activities were observed in the groups of solo-administration of LPS (2.8 mg·kg(-1), i.v.) or different dosage (18.9, 37.8 and 75.6 g·kg(-1), i.g.) of PM, compared to normal control group (P > 0.05); while significant elevations were observed in the co-administration groups of PM and LPS. Treatment with LPS alone caused slight infiltration of inflammatory cells in portal area but no evident hepatocytes injury. Co-treatment with LPS and PM (75.6 g·kg(-1), i.g.) caused hepatocyte focal necrosis, loss of central vein intima and a large number of inflammatory cell infiltration in portal areas. When further reduce the dosage of PM, significant increases of plasma ALT and AST activities (P < 0.05) were still observed in co-administration groups of LPS and PM (1.08 or 2.16 g·kg(-1)), but not in LPS or PM solo-administration groups. Nevertheless, the co-treatment of low dosage of PM (0.54 g·kg(-1)) with LPS did not induce any alteration of plasma ALT and AST. In conclusion, intragastric administration with 75.6 g·kg(-1) of PM did not induce liver injury in normal rats model; while the 2 folds of clinical equivalent dose of PM (1.08 g·kg(-1)) could result in liver injury in the LPS-based idiosyncratic hepatotoxicity model, which could be used to evaluate the idiosyncratic hepatotoxicity of PM.
Alanine Transaminase ; blood ; Animals ; Aspartate Aminotransferases ; blood ; Chemical and Drug Induced Liver Injury ; pathology ; Hepatocytes ; pathology ; Lipopolysaccharides ; Polygonum ; toxicity ; Rats ; Rats, Sprague-Dawley

Objective To observe clinical efficacy and safety on the treatment of moderate-severe cancer pain by Fluvoxamine combined with Oxycodone. Methods 120 cancer patients with moderate pain and 120 cases with severe pain were selected, randomly divided into experimental group and control group. The control group were given oxycodone alone , and experimental group given fluvoxamine combined with oxycodone , till the pain relieved, then the degree of pain relief, oxycodone dosage, life quality and side effects were evaluated. Results The degree of pain relief in experimental group were much better than control group (P < 0.05). Oxycodone consumption were lower in experimental group than control group , and the difference was no significant difference in controlling moderate pain (P = 0.065), while statistically significant in controlling severe pain (P = 0.035). The general status, daily activity, mood, and sleep affected by cancer pain were released after treatment, especially in experimental group (P < 0.05). The most common side effects were approximative, and the incidence of constipation, nausea/vomiting, lethargy were lower in experimental group than control group (P =0.026). Conclusion Fluvoxamine combined with Oxycodone can effectively control moderate-severe cancer pain, and reduce the oxycodone dosage and some side effects, and therefore, improve the quality of life.

Objective To evaluate the efficacy of chemoradiotherapy alone and prognostic factors for locally advanced rectal cancer. Methods The clinical data of 47 patients with locally advanced rectal cancer who were admitted to our hospital and mostly treated with chemoradiotherapy alone from 2003 to 2010 were retrospectively analyzed. Three of the patients received radiotherapy alone. The Kaplan?Meier method was used to estimate overall survival (OS), progression?free survival (PFS), and distant metastasis?free survival ( DMFS ) rates, and the log?rank test was used for survival difference analysis and univariate prognostic analysis. The Cox regression model was used for multivariate prognostic analysis. Results In all patients, the 3?and 5?year OS rates were 53?2% and 33?2%, respectively, while the 3?and 5?year PFS rates were 37% and 31%, respectively. During the follow?up, 15 patients (32%) had local progression with PFS of 1?60 months (median PFS, 14 months);23 patients (49%) had distant metastasis with DMFS of 2?60 months ( median DMFS, 17 months) . Patients treated with high?dose radiotherapy had significantly lower 3?and 5?year local progression rates than patients treated with medium?dose radiotherapy ( 11% vs. 54%;11%vs. 57%;P=0?004). After chemoradiotherapy, 9 patients (19%) had clinical complete response (cCR), and the 3?and 5?year OS and PFS rates in those patients were all 8/9. The univariate analysis indicated that tumor distance from the anus and cCR were influencing factors for prognosis ( P= 0?026;P= 0?000 ) . However, the multivariate analysis showed that cCR was the only influencing factor for survival ( HR=12?24;95% CI, 1?64 ?91?29;P= 0?015 ) . Conclusions Chemoradiotherpay or radiotherapy alone is effective and safe in the treatment of patients with locally advanced rectal cancer who have to give up surgery or have unresectable tumors. High?dose radiotherapy may improve local control rate. Complete response to chemoradiotherapy predicts satisfactory treatment outcomes.

Objective To explore the best time point for the ipsilateral hepatocellular apoptosis and the contralateraI hepatic hypertrophy after selective portal vein embolization(SPVE)in rabbit.Methods In a randomized study design,forty rabbits were divided into 5 groups with 8 rabbits per-group,including one as the control and the other 4 were treated with SPVE during open surgery.The rabbits were killed postoperatively,in 3,7,14,21 days respectively after the embolization.The hepatic lobes volume,the ipsilateral hepatocellular necrosis rates and apoptosis index,and liver functions were determined as well. Results In the treatment groups,the average amount of the right liver volumes decreased from 46.4 cm~3 preoperatively to 46.0,44.4,42.0,39.7 cm~3 in groups of 3,7,14,21 days postoperatively;meanwhile,the left liver volumes increased from 54.0 cm~3 preoperatively to 54.5,56.3,61.7,63.9 cm~3 respectively during 3, 7,14,21 days after the procedures.The rates of future remaining live volumes(FRLV)increased from 53.8% preoperatively to 54.2%,55.9%,59.0%,61.0% at 3,7,14,21 days postoperatively.The apoptosis indexes of hepatocells from group A to E were 8.1%,12.2%,19.4%,20.1%,14.2% respectively.Conclusions SPVE leads to atrophy of the ipsilateral hepatic lobe and hypertrophy of contralateral lobe,indicating that hepatocytes undergone apoptosis,rather than necrosis.The time point is 7 to 14 days.