Exploring the Effect Mechanism of Alkyl Chain Lengths on the Tribological Performance of Ionic Liquids.

In this work, four kinds of imidazole phosphate ionic liquids (ILs) with different anionic and cationic alkyl chain lengths were synthesized. The physicochemical properties and tribological performance of ILs were evaluated. The experimental results revealed that the tribological properties of ILs were positively correlated with the cationic chain length and negatively correlated with the anionic chain length. The effect mechanism can be summarized in two aspects: on the one hand, anions with shorter alkyl chain lengths possess stronger adsorption performance and better film forming ability on the friction pair surfaces, which makes the ILs form more robust and stable lubricating film; on the other hand, ILs with longer cationic alkyl chain lengths possess milder tribo-chemical reactions, which can effectively enhance the tribological performance and decrease the corrosion wear.

MFEprimer-3.0: quality control for PCR primers.

Quality control (QC) for lab-designed primers is crucial for the success of a polymerase chain reaction (PCR). Here, we present MFEprimer-3.0, a functional primer quality control program for checking non-specific amplicons, dimers, hairpins and other parameters. The new features of the current version include: (i) more sensitive binding site search using the updated k-mer algorithm that allows mismatches within the k-mer, except for the first base at the 3' end. The binding sites of each primer with a stable 3' end are listed in the output; (ii) new algorithms for rapidly identifying self-dimers, cross-dimers and hairpins; (iii) the command-line version, which has an added option of JSON output to enhance the versatility of MFEprimer by acting as a QC step in the 'primer design → quality control → redesign' pipeline; (iv) a function for checking whether the binding sites contain single nucleotide polymorphisms (SNPs), which will affect the consistency of binding efficiency among different samples. In summary, MFEprimer-3.0 is updated with the well-tested PCR primer QC program and it can be integrated into various PCR primer design applications as a QC module. The MFEprimer-3.0 server is freely accessible without any login requirement at: https://mfeprimer3.igenetech.com/ and https://www.mfeprimer.com/. The source code for the command-line version is available upon request.

Whole-genome sequences of 89 Chinese sheep suggest role of RXFP2 in the development of unique horn phenotype as response to semi-feralization.

Background: Animal domestication has been extensively studied, but the process of feralization remains poorly understood. Results: Here, we performed whole-genome sequencing of 99 sheep and identified a primary genetic divergence between 2 heterogeneous populations in the Tibetan Plateau, including 1 semi-feral lineage. Selective sweep and candidate gene analysis revealed local adaptations of these sheep associated with sensory perception, muscle strength, eating habit, mating process, and aggressive behavior. In particular, a horn-related gene, RXFP2, showed signs of rapid evolution specifically in the semi-feral breeds. A unique haplotype and repressed horn-related tissue expression of RXFP2 were correlated with higher horn length, as well as spiral and horizontally extended horn shape. Conclusions: Semi-feralization has an extensive impact on diverse phenotypic traits of sheep. By acquiring features like those of their wild ancestors, semi-feral sheep were able to regain fitness while in frequent contact with wild surroundings and rare human interventions. This study provides a new insight into the evolution of domestic animals when human interventions are no longer dominant.

Metabolomic Signature of Coronary Artery Disease in Type 2 Diabetes Mellitus.

Coronary artery disease (CAD) is a common complication of type 2 diabetes mellitus (T2D). This case-control study was done to identify metabolites with different concentrations between T2D patients with and without CAD and to characterise implicated metabolic mechanisms relating to CAD. Fasting serum samples of 57 T2D subjects, 26 with (cases) and 31 without CAD (controls), were targeted for metabolite profiling of 163 metabolites. To assess the association between metabolite levels and CAD, partial least squares (PLS) analysis and multivariate logistic regression analysis with adjustment for CAD risk factors and medications were performed. We observed a separation of cases and controls with two classes of metabolites being significantly associated with CAD, including phosphatidylcholines, and serine. Four metabolites being independent from the common CAD risk factors displaying best separation between cases and controls were further selected. Addition of the metabolite concentrations to risk factor analysis raised the area under the receiver-operating-characteristic curve from 0.72 to 0.88 (p = 0.020), providing improved sensitivity and specificity for CAD classification. Serum phospholipid and serine levels independently discriminate T2D patients with and without CAD. Oxidative stress and reduced antioxidative capacity lead to lower metabolite concentrations probably due to changes in membrane composition and accelerated phospholipid degradation.

[Observation on the therapeutic effect of acupuncture treatment of autism children].

OBJECTIVE: To observe the therapeutic effect of acupuncture ("Jin's Sanzhen") treatment for autism patients with different severity. METHODS: A total of 202 autism children were divided into treatment group (n=118) and control group (n=84) according to their parents' will. Autism children in the treatment group were treated with "Jin's Sanzhen" therapy [for example, Niesanzhen: the point 2 cun superior to the ear tip, and those at the same level 1 cun apart on the left and right sides; Naosanzhen: Naohu (GV 17), bilateral Naokong (GB 19), etc.], while those of control group accepted special training: behavior education (cognition, speech, communication ability, life self-care ability, etc.) and sensory integration training. The treatment was given to the patients in both groups once per day, six times a week for 4 months. RESULTS: Of the 78 and 58 severe patients in the treatment and control groups, 63 (80.8%) and4 (6.9%) experienced marked improvement, 9 (11.5%) and 33 (56.9%) experienced improvement, 6 (7.7%) and 21 (36.2%) failed, with the effective rates being 92.3% and 63.8% respectively. Of the 118 and 84 patients in the treatment and control groups, after the treatment, the no symptoms, mild, moderate and severe cases were 12 (10.2%) and 3 (3.6%), 56 (47.5%) and 25 (29.8%), 45 (38.1%) and 23 (27.4%), 5 (4.2%) and 33 (39.3%), respectively. The total score of Childhood Autism Rating Scale of treatment group was significantly lower than that of control group after the treatment in severe cases (P < 0.01), showing a better therapeutic effect of the treatment group. CONCLUSION: "Jin's Sanzhen" therapy has a better therapeutic effect for improving the autism patients symptoms at different severity.

[Observation on clinical therapeutic effect of Jin's 3-needling therapy on severe autism].

OBJECTIVE: To find out an effective therapy for severe child autism. METHODS: Sixty-nine autism children were divided into a JIN's 3-needling group (n=35) and a behavior intervention group (n=34). The JIN's needling group was treated with JIN's 3-needling therapy, including Four-shen needling, Zhi-three needling and Nao-three needling, etc. with point group of the head selected as main points; and the behavior intervention group with professional behavior intervention comprehensive therapy in a special training school for autism children. Childhood autism rating scale (CARS) was used for evaluation of therapeutic effects. RESULTS: After 2 therapeutic courses (240 sessions), the markedly effective rate was 97.1% in the JIN's 3-needling group and 64.7% in the behavior intervention group; there was asignificant difference the therapeutic effect between the two groups (P<0.01); after the first course (first 120 session) and the second course (later 120 sessions), there was a very significant difference between the two groups (P<0.001); and there were significant differences before and after treatment in the courses in the two groups (P<0.01). CONCLUSION: Both the JIN's 3-needling therapy and the behavior intervention therapy have better therapeutic effects on severe child autism, but the therapeutic effect of JIN's 3-needling is much better.