Improvement Effect of Mitotherapy on the Cognitive Ability of Alzheimer's Disease through NAD/SIRT1-Mediated Autophagy.

To date, Alzheimer's disease (AD) has grown to be a predominant health challenge that disturbs the elderly population. Studies have shown that mitochondrial dysfunction is one of the most significant features of AD. Transplantation therapy of healthy mitochondria (mitotherapy), as a novel therapeutic strategy to restore mitochondrial function, is proposed to treat the mitochondria-associated disease.

Association of artificial intelligence use and the retention of elderly caregivers: A cross-sectional study based on empowerment theory.

Aim: The purpose of this study is to investigate how the use of artificial intelligence is associated with the retention of elderly caregivers.

Background: The turnover of elderly caregivers is high and increasing. Elderly care institutions are beginning to use artificial intelligence to support caregivers in their work, and the use of technology is critical to staff retention.

Inhibitory effect of icaritin on proliferation, migration, and invasion of human nasopharyngeal carcinoma cell CNE2 by regulating STAT3 activation.

The influence of icaritin on the proliferation, migration, and invasion of human nasopharyngeal carcinoma cell CNE2 and the influencing mechanisms were discussed. Results indicated that icaritin can realize dosage-dependent inhibition of CNE2 cell proliferation, migration, and invasion and inhibit the expression levels of VEGF, KDR, bFGF, MMP2, and MMP9. It can also inhibit STAT3 phosphorylation without affecting STAT3 expression.

Preparative separation of cacao bean procyanidins by high-speed counter-current chromatography.

In this work, an efficient method for preparative separation of procyanidins from raw cacao bean extract by high-speed counter-current chromatography (HSCCC) was developed. Under the optimized solvent system of n-hexane-ethyl acetate-water (1:50:50, v/v/v) with a combination of head-tail and tail-head elution modes, various procyanidins fractions with different polymerization degrees were successfully separated. UPLC, QTOF-MS and H NMR analysis verified that these fractions contained monomer up to pentamer respectively.

Preparative high-speed counter-current chromatography separation of grape seed proanthocyanidins according to degree of polymerization.

Separation of plant proanthocyanidins remains a major challenge for scientists due to the structural diversity and complexity. In this work, a new and effective method was developed for preparative separation of grape seed proanthocyanidins (GSPs) according to degree of polymerization (DP) by high-speed counter-current chromatography (HSCCC). Under the optimized HSCCC conditions, GSPs could be separated into seven distinct fractions (F1-F7) with mean degree of polymerization in increasing order, from 1.

Preparative separation of grape skin polyphenols by high-speed counter-current chromatography.

To develop an efficient method for large preparation of various individual polyphenols from white grape skins (Fernão Pires; Vitis vinifera) by preparative high-speed counter-current chromatography (HSCCC) and preparative-HPLC, an optimized preparative HSCCC condition with two-phase solvent system composed of Hex-EtOAc-H2O (1:50:50, v/v) was used to separate grape skin polyphenols into various fractions. Both the tail-head and head-tail elution modes were used with a flow rate of 3.0ml/min and a rotary speed of 950rpm.

Preparative HSCCC isolation of phloroglucinolysis products from grape seed polymeric proanthocyanidins as new powerful antioxidants.

Polymeric proanthocyanidins isolated from a grape seed phenolic extract were hydrolysed in the presence of phloroglucinol into monomer catechins and their nucleophile derivatives. Each of the phloroglucinolysis products was successfully separated and isolated in large amount by semi-preparative HSCCC technique under the optimized conditions based on a selection of suitable solvent system. The optimized solvent system consisted of n-hexane-ethyl acetate-water (1:80:80, v/v/v) with a combination of head-tail and tail-head elution modes.

Combining molecular fingerprints with multidimensional scaling analyses to identify the source of spilled oil from highly similar suspected oils.

Oil fingerprints have been a powerful tool widely used for determining the source of spilled oil. In most cases, this tool works well. However, it is usually difficult to identify the source if the oil spill accident occurs during offshore petroleum exploration due to the highly similar physiochemical characteristics of suspected oils from the same drilling platform.