Cellulase production and efficient saccharification of biomass by a new mutant Trichoderma afroharzianum MEA-12.

Background: Cellulase plays a key role in converting cellulosic biomass into fermentable sugar to produce chemicals and fuels, which is generally produced by filamentous fungi. However, most of the filamentous fungi obtained by natural breeding have low secretory capacity in cellulase production, which are far from meeting the requirements of industrial production. Random mutagenesis combined with adaptive laboratory evolution (ALE) strategy is an effective method to increase the production of fungal enzymes.

Interleukin-10 polymorphisms (rs1800871, rs1800872 and rs1800896) and periodontitis risk: A meta-analysis.

Objective: The objective of this meta-analysis was to assess the association between three interleukin-10 (IL-10) promoter single nucleotide polymorphisms (rs1800871, rs1800872, and rs1800896) and periodontitis risk.

Methods: A systematic search was conducted in PubMed, Embase, and China National Knowledge Infrastructure databases and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed.

Results: Twenty-six studies met the inclusion criteria.

[Expression of STAT3 in alveolar bone during orthodontic tooth movement in rats].

Purpose: To study the changes of expression of signal transducer and activator of transcription 3 (STAT3) during orthodontic tooth movement (OTM).

Methods: Twenty six-week-old SD rats were selected, the upper left first molars were moved by coil spring and lasted for 7 days. The maxillary tissues were obtained at 0, 1, 3, 7 d and subjected to histological study.

[Methodological and reporting quality assessment for Chinese systematic reviews and meta analysis in oral medicine].

Purpose: To evaluate the methodology and reporting quality of Chinese systematic reviews and meta analysis in oral medicine.

Methods: Chinese literatures of systematic reviews and meta analysis in oral medicine were searched in the CBM, VIP, WANFANG Database and CNKI from the establishment date to August 30, 2014. Two researchers screened and evaluated the data independently, and disagreements were resolved by discussion.

C60 fullerenol as an active and stable catalyst for the synthesis of cyclic carbonates from CO2 and epoxides.

C60 fullerenol was found to be a highly active, selective and stable catalyst for cycloaddition between CO2 and epoxides to produce various cyclic carbonates with excellent yields (89-99%). A solid/liquid interfacial hydrogen-bond assisted mechanism was proposed to account for its high efficiency.

[Effects of Radix Salviae Miltiorrhizae on Ca2+ in hepatic stellate cells].

Objective: To investigate the effects of Radix Salviae Miltiorrhizae (RSM) on intracellular free calcium in hepatic stellate cells (HSCs).

Methods: After the model of hepatic fibrosis was established in SD rats, RSM [20 ml/(kg x d)] was given via gastrogavage to the rats of treatment groups while the same volume of 0.9% NaCl was given to the rats of control groups twice a day for 6 consecutive days.