FOOD AND CHEMICAL TOXICOLOGY
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2021
·
IF 6.025
Yin Li,Dongyi Hu,Jianlian Huang,Shaoyun Wang
With the aging problems increasing, the discovery of anti-aging compounds has become a popular research direction. Accumulation of free radicals and the consequent oxidative stress are the chief culprit of aging. Given this, cultured crocodile meat peptides-Maillard reaction product (CMP-MRP) with remarkable antioxidant activity was obtained via Maillard reaction of cultured crocodile meat hydrolysates and xylose . The antioxidant activity in vitro and anti-aging activity in vivo of CMP-MRP were investigated. Results indicated that the lifespan and the athletic ability of Drosophila were significantly improved after the administration of CMP-MRP in natural aging, H 2 O 2 - and paraquat-induced models. Furthermore, the antioxidant enzyme activities of Drosophila treated with CMP-MRP were enhanced while the levels of malondialdehyde (MDA) and protein carbonyl (PCO) were reduced in three Drosophila models. With the supplement of 5 mg/mL CMP-MRP in natural aging Drosophila model, the maximum lifespan increased from 61 days to 73 days, athletic ability raised by 95.45%, MDA and PCO reduced by 52.72% and 47.43%, respectively. Taken together, CMP-MRP exhibited outstanding antioxidant and anti-aging capacities in Drosophila models, suggesting that CMP-MRP possesses great potential in the health food and biomedicine fields as a food-derived anti-aging agent.
研究领域:
营养学
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分子生物学
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食品科学
✓ 已验证
DOI
PubMed
高影响因子
Analytical Methods
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2020
·Vol. 12
·期 38
·4657-4664
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IF 2.596
Linhua Yi,Yinghua Yan,Keqi Tang,Chuan-Fan Ding
As a member of MOFs, Zn-MOFs (ZIF-8) are seldom used in phosphopeptide enrichment because ZIF-8 is soluble in acid solutions. Therefore, properly designing a novel strategy to overcome the defect of ZIF-8 is necessary. In this study, a novel multifunctional nanoprobe was designed by uniting magnetic core, titania shell and hydrophilic metal–organic frameworks (named as Fe3O4@PDA@mTiO2@PEI-g-ZIF-8). Integrating the strategies of hydrophilic interaction affinity chromatography (HILIC), immobilized metal ion affinity chromatography (IMAC) and metal oxide affinity chromatography (MOAC), the Fe3O4@PDA@mTiO2@PEI-g-ZIF-8 mesoporous microspheres can enrich phosphorylated peptides and glycosylated peptides simultaneously. Fe3O4@PDA@mTiO2@PEI-g-ZIF-8 has high selectivity (maximum molar ratio β-casein/HRP : BSA = 1 : 1000), low detection limit (2 fmol) towards phosphopeptides and glycopeptides. Besides, the Fe3O4@PDA@mTiO2@PEI-g-ZIF-8 also exhibited a fine performance in the actual sample detection. In the experiment, taking saliva as a sample, 16 phosphorylated peptides were identified, and from a human serum sample, 4 phosphorylated peptides were selectively identified. All in all, the materials show great potential in the future study of phosphoproteomics and glycoproteomics.
研究领域:
分析化学
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蛋白质组学
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生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
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2021
·
IF 4.759
Canhong Zhu,Jiani Wu,Xueting Jin,Yinghua Yan,Chuan-Fan Ding,Keqi Tang,Qiaohong Zhang
Herein, a hydrophilic graphene composite functionalized with glutathione (GSH) and L(+)-Cysteine (Cys) was prepared via a simple and fast synthesis route, which was named G@S@Au@GC. The combination attack with two different zwitterionic polymers resulted in enhanced adsorption sites for glycopeptides. The obtained G@S@Au@GC exhibited excellent performance on a low limit of detection (0.2 fmol), a high selectivity (HRP: bovine serum albumin = 1:1500), a good load capacity (250 μg•mg −1 ) and recovery rate (93%), which was also evaluated with IgG. Subsequently, 60 glycopeptides from complex biological sample (human saliva) were identified by Nano-LC-MS/MS. The advantages of combination attack, low-cost, simple and fast synthesis, and superior enrichment performance make G@S@Au@GC composite a bright future on glycoproteomics analysis and related diseases.
研究领域:
分析化学
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蛋白质组学
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生物医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2013
·
IF 4.612
Qianying Sheng,Yanxiong Ke,Kuiyong Li,Dongping Yu,Xinmiao Liang
A hydrophilic interaction liquid chromatography (HILIC) stationary phase of cellulose-coated silica was synthesized as a novel saccharide separation material. The material, prepared with a method based on ionic interaction, was demonstrated to be efficient for immobilization of saccharides on silica supports. The method is more efficient than traditional immobilized saccharide stationary phase synthesis methods. It was evolved from a method using anion exchanger microparticles agglomerated onto macroparticles of cation exchangers to produce anion exchangers. Cationic cellulose, which has a large number of hydroxyl groups, was immobilized on sulfonated silica. The cellulose-coated stationary phase we designed used strong hydrogen bonding between cellulose hydroxyl and carbohydrate compounds for HILIC retention and separation. The stationary phase was successfully used to separate the samples of polar compounds and the complex samples of oligosaccharides, and demonstrated good reproducibility and stability. The material exhibited good separation selectivity for carbohydrates and ability to enrich glycosylated peptides. The method described here is easy to achieve, environmentally safe and innovative than other methods. It also has extensive application possibilities to separate other categories polar compounds.
研究领域:
分析化学
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色谱学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）