Microwave-enhanced hydrolysis of cellulose by acidic ionic liquids.

In the [Bmim]Cl reaction medium, five different acidic ionic liquids were used as catalysts to study the effects of reaction time, reaction temperature, system water content, catalyst dosage, microwave power, and other factors on cellulose hydrolysis under microwave irradiation. The results showed that in the [Bmim]Cl reaction system, using N-methylpyrrolidone methylsulfonic acid salt as a catalyst, controlling the microwave reaction time at 10 min, reaction temperature at 130 °C, catalyst dosage at 1 g/g (cellulose), water addition at 0.756 µL/g ([Bmim]Cl), and microwave power at 480 W, resulted in the best cellulose hydrolysis effect with a glucose yield of 74.49%. Compared to conventional heating, the glucose yield increased by 24% and the hydrolysis time was reduced by 77%. Microwave irradiation significantly enhances the cellulose hydrolysis process in an ionic liquid medium.

[Effects of Continuous Intravenous Intraoperative Lidocaine Infusion on Opioids Consumption and Postoperative Recovery in Patients Undergoing Video-assisted Thoracoscopic Lobectomy].

Objective To investigate whether continuous intravenous intraoperative lidocaine infusion can reduce the opioids dosage and improve postoperative recovery in patients undergoing video-assisted thoracoscopic(VATS) lobectomy. Methods Totally 60 patients undergoing VATS lobectomy were enrolled in this single-center randomized controlled study.The patients were equally randomized into lidocaine continuous pumping group(lidocaine group) and control group by computer-based random numbers.The patients had double-lumen catheter intubation,and total intravenous anesthesia was administrated intraoperatively.In the lidocaine group,patients continuously received intravenous pumping of lidocaine [2 mg/(kgdh) ] after a loading doses(1 mg/kg) until the end of the operation.We recorded the basic characteristics,preoperative examination,intraoperative medications,and postoperative recovery of both groups.Results The basic characteristics and preoperative examination findings were comparable between these two groups(all P>0.05).Compared with the control group,the intraoperative sufentanil consumption significantly decreased in the lidocaine group [(32.3±7.5) µg vs.(40.9±10.2) µg,P<0.001].Significantly more patients were given esmolol intraoperatively in the control group to lower heart rate(P=0.010).The incidence of postoperative nausea within 24 hours was significantly lower in the lidocaine group(P=0.045).There was no significant difference between the two groups in postoperative recovery(all P>0.05).Conclusion Intravenous continuous pumping of lidocaine during operation can reduce opioids consumption and lower the incidence of postoperative nausea without extra adverse or toxic reaction in patients undergoing VATS lobectomy.

Application of Cardiopulmonary Exercise Testing in Enhanced Recovery after Surgery.

Enhanced recovery after surgery (ERAS) is a new perioperative concept that aims to reduce perioperative stress response and accelerate rehabilitation of patients through a variety of optimized management. With the wider application of this concept,the effective implementation of ERAS program has become a new challenge. Cardiopulmonary exercise testing (CPET) has shown promising value in the preoperative assessment,perioperative optimization,and postoperative rehabilitation of ERAS. This article reviews the application of CPET in ERAS,with an attempt to provide evidence for more detailed and comprehensive ERAS program.

Advances in the proinflammatory effects of visfatin and its relationship with diabetic kidney disease.

Visfatin, also known as the pre-B-cell colony enhancing factor, is a new member of the adipocytokines. It serves as a nicotinamide phosphoribosyltransferase in cells. Visfatin has complex biological functions and may be involved in the pathogenesis of diabetic kidney disease; it may contribute to the chronic inflammatory status at systemic and renal levels and thus aggravate renal injury. Further research on visfatin will provide new insights in the treatment of diabetic kidney disease. This article reviews the recent advances in the proinflammatory effects of visfatin and its relationship with diabetic kidney disease.

[Conditions for SARS-CoV cultivation and inactivation].

OBJECTIVE: To study the method for cultivation and inactivation of SARS-CoV. METHODS: In order to choose the sensitive cell strain and the best infection dose of the virus, Vero, Vero-E6 and 2BS cell lines were infected with SARS-CoV. The cultivation temperature was selected among 25 degrees C, 33 degrees C and 37 degrees C. The best inactivating time and effect were observed with beta-propiolactone whose concentration ranged from 1:2000 to 1:20,000 at room temperature. RESULTS: Vero and Vero-E6 cell lines were sensitive to SARS-CoV. The cytopathic changes of the cells were 75% at 37 degrees C in 5 percent CO2 incubator after infection. SARS-CoV was inactivated completely in beta-propiolactone (1:4000). The toxicity of beta-propiolactone was hydrolyzed completely when the inactivated virus was cultured for 16 hours at 2 degrees C, 8 degrees C and in water bath for 2 hours at 37 degrees C. CONCLUSION: The titer of SARS-CoV was the highest when it was cultured in Vero or Vero-E6 cells for 72 hours at 37 degrees C in 5 percent CO2 incubator. SARS-CoV was inactivated completely in beta-propiolactone when its concentration was 1:4000 and the interaction time was 1 hour.