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4-Hydroxy-2-Oxoglutaric Acid,A KeyMetabolite Involved in Trypsin-Regulation of Arginine Metabolism in Hylocereus undatus during Storage

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Phyton-International Journal of Experimental Botany 2024年第5期93卷 885-900页

作者： Bairu Li Jingyu Jia Hemin Wang Jiaju Sun Enyan Chen Xin Li College of food and Bioengineering Henan University of Science and TechnologyLuoyang471023China Henan Engineering research center of food Microbiology Luoyang471023China National Demonstration center for Experimental food Processing and Safety Education Luoyang471000China

Trypsin,a novel superoxide scavenger,significantly enhances the storage quality of Hylocereus undatus(***).To elucidate the preservation mechanism of trypsin on ***,a widely targeted metabolomic analysis,and transcriptomics analysis were ***,a total of 453 metabolites were identified,with organic acids and their derivatives constituting the largest proportion(25%).Amino acids and their metabolites,prominent among organic acids,were further *** them,73 metabolites were associated with amino acids,and 37 exhibited significant *** most enriched Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway was arginine biosynthesis(map00220),with polyamine metabolites showing the most pronounced differences,particularly spermine(FC=1.7594).Compared with the control group,4-hydroxy-2-oxoglutaric acid was significantly upregulated(FC=2.117)in the process of spermine ***,the results of Gene Ontology(GO)and KEGG enrichment analysis of the *** transcriptome profile revealed that trypsin treatment led to 187 differentially expressed genes associated with *** GO and KEGG analyses exhibited significant enrichment in the spermine biosynthetic process(GO:0006597)(map:00220)within the arginine biosynthesis ***,most enzymes and metabolites within the spermine biosynthesis pathway in *** were *** results of the PPI network highlighted that ADC,SPDS,and SAMDC,among others,were pivotal proteins involved in trypsin-regulated arginine metabolism and spermine *** study revealed that trypsin could significantly delay postharvest senescence of *** at room *** effect might be attributed to trypsin triggering the synthesis of 4-hydroxy-2-oxoglutaric acid in the fruit peel,thereby promoting the biosynthesis of spermine and other polyamines.

关键词： Trypsin arginine transcriptomics widely targeted metabolomics

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New perspectives on the genetic structure of dotted gizzard shad(Konosirus punctatus)based on RAD-seq

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marine Life Science & Technology 2024年第1期6卷 50-67页

作者： Ying Peng Yifan Liu Jiasheng Li Kun Zhang Xun Jin Sixu Zheng Yunpeng Wang Zhenming Lu Liqin Liu Li Gong Bingjian Liu National Engineering Laboratory of marine Germplasm Resources Exploration and Utilization Zhejiang Ocean UniversityZhoushan 316022China National Engineering research center for Facilitated marine Aquaculture Marine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316022China

To maintain,develop and rationally utilize marine organisms,understanding their genetic structure and habitat adaptation pattern is *** punctatus,which is a commercial fish species inhabiting the Indo-west Pacific Ocean,has shown an obvious annual global capture and aquaculture production decline due to climate changes and human *** the present study,restriction-site associated DNA sequencing(RAD-seq)was used to describe its genome-wide single nucleotide polymorphisms panel(SNPs).Among 146 individuals collected at nine locations scattered in China,Korea and Japan,a set of 632,090 SNPs were *** genetic analysis showed that *** individuals were divided into two significant genetic ***,potential genetic differentiation between northern and southern population of *** was *** results indicated that gene flow existed among sampling locations of ***,especially from southern Japan to ***,candidate genes associated with habitat adaptations of *** were identified,which are involved in diverse physiological processes of *** including growth and development(e.g.,KIDINS220,PAN3),substance metabolism(e.g.,PGM5)and immune response(e.g.,VAV3,CCT7,HSPA12B).Our findings may aid in understanding the possible mechanisms for the population genetic structure and local adaptation of ***,which is beneficial to establish the management and conservation units of ***,guiding the rational use of resources,with reference significance for a profound understanding of the adaptative mechanisms of other marine organisms to the environment.

关键词： Population structure Konosirus punctatus SNP RAD-seq Local adaptation

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Punicalagin alleviates hypercholesterolemia in mice through modulating farnesoid X receptor signaling and modulating gut microbiota

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food Science and Human Wellness 2024年

作者： Huanhuan Liu Hongli Liu Chunhong Yan Jiaxiu Liu Yu Cao Guopeng Li Xiaodong Xia State Key Laboratory of marine food Processing and Safety Control， National Engineering research center of Seafood， School of food Science and Technology， Dalian Polytechnic University Beijing Advanced Innovation center for food Nutrition and Human Health， College of food Science and Nutritional Engineering， China Agricultural University

Punicalagin has been demonstrated to exhibit anti-oxidant and anti-inflammatory properties， but whether and how it could impact hypercholesterolemia remains not fully explored. The aim of this study was to investigate the influence of punicalagin on hypercholesterolemia in mice and its related mechanisms. After 6 weeks’ intervention， punicalagin significantly reduced serum total cholesterol and low density lipoprotein cholesterol (LDL-C) levels in mice fed a high-fat high-cholesterol (HFHC) diet. Meanwhile， punicalagin supplementation lowered hepatic cholesterol level， which corresponded to the down-regulation of cholesterol synthesis genes (Fdps， Cyp51) and up-regulated bile acid synthesis genes (Cyp7a1， Cyp27a1). In addition， bile acid reabsorption was retarded in punicalagin-fed mice through down-regulating ileal apical sodium-dependent BA transporter (ASBT). Furthermore， intestinal farnesoid X receptor (FXR)-fibroblast growth factor 15 (Fgf15) pathway was inhibited while hepatic FXR-small heterodimeric partner (SHP) pathway was activated in punicalagin group. Microbiota analysis and targeted metabolomics showed that punicalagin decreased the abundance of bile-salt hydrolase (BSH)-producing bacteria (Clostridiaceae and Bifidobacteriaceae) and the ratio of primary BAs to secondary BAs. In conclusion， the cholesterol-lowering effect of punicalagin partly through down-regulating cholesterol synthesis and increasing cholesterol catabolism， which could be achieved by regulating gut microbiota， altering bile acid composition and modulating FXR signaling pathway. These findings indicate the potential application of punicalagin-related products as an alternative strategy for hypercholesterolemia prevention and mitigation.

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EuSHT Acts as a Hub Gene Involved in the Biosynthesis of 6-Hydroxyluteolin and Quercetin Induced by Salt Stress in Eucommia ulmoides

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2095-2113页

作者： Fuxin Li Enyan Chen Xinxin Chen Jingyu Jia Hemin Wang Jie Zhang Jianrui Sun Xin Li College of food and Bioengineering Henan University of Science and TechnologyLuoyang471023China Henan Engineering research center of food Microbiology Luoyang471023China National Demonstration center for Experimental food Processing and Safety Education Luoyang471000China

Salt stress inhibits plant growth and affects the biosynthesis of its secondary *** are natural compounds that possess many important biological activities,playing a significant role in the medicinal activity of Eucommia ulmoides(***).To investigate the mechanism by which salt stress affects the biosynthesis of flavonoids in ***,a comprehensive analysis of metabolomics and transcriptomics was *** results indicated that salt stress led to the wilting and darkening of *** leaves,accompanied by a decrease in chlorophyll levels,and significantly induced malondialdehyde(MDA)and relative electrical *** salt stress,most metabolites in the flavonoid biosynthesis pathway of *** were upregulated,indicating that flavonoid biosynthesis is likely the main induced pathway under salt *** them,secondary metabolites such as 6-Hydroxyluteolin and Quercetin are likely key metabolites induced by salt *** correlation analysis of transcriptomics and metabolomics revealed that EuSHT is a hub gene induced by salt stress,promoting the production of flavonoids such as *** co-expression network showed a strong positive correlation between EuSHT and the biosynthesis of 6-Hydroxyluteolin and Quercetin,while it exhibited a negative correlation with Catechin *** branches leading to Luteolin and Dihydroquercetin are likely the main pathways for flavonoid compound biosynthesis in the plant stress response during salt *** results of this study provided a preliminary mechanism of secondary metabolites such as flavonoids in the medicinal plant *** induced by salt stress and provided new theoretical support for discussing the mechanism of plant stress *** also provided useful information for subsequent exploration of resistance genes in ***.

关键词： Eucommia ulmoides ﬂavonoid salt stress transcriptomics widely targeted metabolomics

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Sea cucumber gut tetrapeptide ameliorates alcoholic gastric damage via restoring mitochondrial dynamics

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food Science and Human Wellness 2024年

作者： Zhihong Zheng Na Sun Jingqi Yang Zhijie Bao Songyi Lin State Key Laboratory of marine food Processing and Safety Control，School of food Science and Technology， Dalian Polytechnic University National Engineering research center of Seafood， School of food Science and Technology， Dalian Polytechnic University Collaborative Innovation center of Seafood Deep Processing， Dalian Polytechnic University Liaoning Engineering research center of Special Dietary food， Dalian Polytechnic University

This paper aimed to explore the mechanism of tetrapeptide VTPY in improving alcoholic gastric injury. VTPY has the potential to enhance the growth and movement of normal GES-1 cells. Following ethanol-induced impairment， VTPY effectively improved migration of GES-1 and HUVEC cells， enhanced angiogenesis， eliminated cellular and mitochondrial ROS， inhibited excessive mitochondrial division， enhanced F-actin polymerization and mitochondrial respiratory capacity. To counteract excessive mitochondrial fission， VTPY primarily restores the mitochondria dynamics by reducing the expression of Drp1 and Fis1， while increasing Mfn2. Further studies utilizing inhibitors clarifies that the inhibition of excessive mitochondrial fission can markedly reduce F-actin depolymerization， consequently enhancing cell migration. Additionally， VTPY can inhibit the apoptosis pathway by maintaining potential of mitochondrial membrane， preventing the release of mitochondrial cytochrome c， bolstering the levels of Bcl-XL， while reducing the levels of Bax and cleaved-caspase3. Further investigations using inhibitors demonstrates that excessive mitochondrial fission could activate apoptotic pathway. However， VTPY counteracts this effect and enhance cells viability. Further evidence suggests that VTPY effectively improves ulcer index and pathologic changes， relieves inflammation， enhances the balance of oxidation and anti-oxidation， promotes angiogenesis， improves the expression of mitochondrial dynamics factors， blocks apoptotic pathway， and subsequently ameliorates gastric damage in mice through Fis-1/Bcl-2 pathway.

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Autoimmune gastritis studies and gastric cancer: True renaissance or bibliometric illusion

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World Journal of Gastroenterology 2024年第32期30卷 3783-3790页

作者： Vasily Isakov Department of Gastroenterology and Hepatology Federal Research Center of NutritionBiotechnology and Food SafetyMoscow 115446Russia

A bibliometric analysis of studies dedicated to autoimmune gastritis(AIG)recently published demonstrated a noteworthy surge in publications over the last three *** can be explained by numerous publications from different regions of the world reporting the results of several studies that stimulated reassessment of our view of AIG as a precancerous ***-up studies and retrospective analyses showed that the risk of gastric cancer(GC)in AIG patients is much lower than expected if the patients ever being infected with Helicobacter pylori(***)were *** low prevalence of precancerous lesions,such as the incomplete type of intestinal metaplasia,may explain the low risk of GC in AIG patients because the spasmolytic polypeptide-expressing metaplasia commonly observed in AIG does not involve clonal reprogramming of the gastric gland and can be considered as an adaptive change rather than a true precancerous ***,changes in gastric secretion due to the progression of gastric atrophy during the course of AIG cause changes in the gastric microbiome,stimulating the growth of bacterial species such as streptococci,which may promote the development of precancerous lesions and ***,Streptococcus anginosus exhibited a robust proinflammatory response and induced the gastritis-atrophy-metaplasia-dysplasia sequence in mice,reproducing the wellestablished process for carcinogenesis associated with *** studies in ***-naïve patients evaluating gastric microbiome changes during the long-term course of AIG might provide an explanation for the enigmatic increase in GC incidence in the last decades in younger cohorts,which has been reported in economically developed countries.

关键词： Autoimmune gastritis Gastric cancer Type 1 neuroendocrine tumors Helicobacter pylori Streptococcus anginosus Intestinal metaplasia

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Constructing porous ZnFC-PA/PSF composite spheres for highly efficient Cs^(+) removal

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Journal of Environmental Sciences 2024年第9期143卷 126-137页

作者： Senjian Han Chao Gao Wenfeng Yan Yafei Guo Shiqiang Wang Tianlong Deng College of marine and Environmental Sciences Tianjin University of Science and TechnologyTianjin 300457China Key Laboratory of marine Resource Chemistry and food Technology Ministry of EducationTianjin 300457China

Radioisotope leaking from nuclear waste has become an intractable problem due to its gamma radiation and strong water *** this work,a novel porous ZnFC-PA/PSF composite sphere was fabricated by immobilization of ferrocyanides modified zinc phytate into polysulfone(PSF)substrate for the treatment of Cs-contaminated *** maximum adsorption capacity of ZnFC-PA/PSF was 305.38 mg/g,and the removal efficiency of Cs+was reached 94.27%within 2 *** ZnFC-PA/PSF presented favorable stability with negligible dissolution loss of Zn^(2+)and Fe^(2+)(<2%).The ZnFC-PA/PSF achieved high-selectivity towards Cs+(K_(d)=2.24×10^(4)mL/g)even in actual geothermal *** adsorption mechanism was inferred to be the ion-exchange between Cs^(+)and K^(+).What’s more,ZnFC-PA/PSF worked well in the fixed-bed adsorption(E=91.92%),indicating the application potential for the hazardous Cs^(+)removal from wastewater.

关键词： Adsorption Cesium Metal ferrocyanide Composite adsorbent

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Dietary polyphenols reduced the allergenicity ofβ-lactoglobulin via non-covalent interactions:a study on the structure-allergenicity relationship

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food Science and Human Wellness 2024年第5期13卷 2617-2628页

作者： Chi Zhang Qiaozhi Zhang Huatao Li Zhouzhou Cheng Shiyu Fan Hujun Xie Zhongshan Gao Yan Zhang Linglin Fu School of food Science and Biotechnology Zhejiang Gongshang UniversityHangzhou 310018China Allergy research center Zhejiang UniversityHangzhou 310018China Hebei food Inspection and research Institute Hebei Food Safety Key LaboratoryKey Laboratory of Special Food Supervision Technology for State Market RegulationHebei Engineering Research Center for Special Food Safety and HealthShijiazhuang 050227China

Studies showed that complexation of polyphenols with milk allergens reduced their immunogenic ***,the relationship between structures of polyphenols and their hypoallergenic effects on milk allergens in association with physiological and conformational changes of the complexes remain *** this study,polyphenols from eight botanical sources were extracted to prepare non-covalent complexes withβ-lactoglobulin(β-LG),a major allergen in *** dominant phenolic compounds bound toβ-LG with a diminished allergenicity were identified to investigate their respective role on the structural and allergenic properties ofβ-*** from Vaccinium fruits and black soybeans were found to have great inhibitory effects on the IgE-and IgG-binding abilities ofβ-*** the fourteen structure-related phenolic compounds,flavonoids and tannins with larger MWs and multi-hydroxyl substituents,notably rutin,EGCG,and ellagitannins were more potent to elicit changes on the conformational structures ofβ-LG to decrease the allergenicity of complexedβ-*** analysis further demonstrated that a destabilized secondary structure and protein depolymerization caused by polyphenol-binding were closely related to the allergenicity property of formed *** study provides insights into the understanding of structure-allergenicity relationship ofβ-LG-polyphenol interactions and would benefit the development of polyphenol-fortified matrices with hypoallergenic potential.

关键词： Cow’s milk allergy β-Lactoglobulin Protein-polyphenol interaction Allergenicity Conformational structure

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Recent advances of rodent models for alcoholic liver disease in evaluating healthy effects of food bioactive ingredients

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food Science and Human Wellness 2024年

作者： Xiaoting Yu Xuedi Zhang Lijuan Zhang Haitao Wang Mingqian Tan State Key Lab of marine food Processing & Safety Control， Dalian Polytechnic University Academy of food Interdisciplinary Science， School of food Science and Technology， Dalian Polytechnic University National Engineering research center of Seafood， Dalian Polytechnic University Engineering research center of Seafood of Ministry of Education of China， Dalian Polytechnic University

The development of rodent models that accurately reflect the pathogenesis of alcoholic liver disease (ALD) in humans is crucial for evaluating the nutritional intervention of food bioactive ingredients in ALD. Although various models have been employed to establish ALD models over the past few decades， most successful cases are associated with high mortality rates， operational difficulties， and incompatibility formation mechanism compared to human ALD. However， the ALD models established by oral administration that simulate human drinking behavior often fail to induce significant liver damage. Therefore， it is imperative to explore simple and effective modes of oral administration for establishing ALD models consistent with the pathophysiological process of human ALD. Herein， we summarized the pathogenesis of ALD and discussed several issues related to construct ALD models with rodents (mainly mice and rats) by oral administration， including animal selection， animal feeding， alcohol intervention， and evaluation criteria. The purpose of this review is to provide a standardized and efficient formula for ALD modeling， so as to facilitate efficacy evaluation and mechanism analysis of food bioactive ingredients in ALD.

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Effects of the concentration and nature of total dissolved solids in drinking water on feed intake, nutrient digestion, energy balance,methane emission, ruminal fermentation, and blood constituents in different breeds of young goats and hair sheep

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Animal Nutrition 2024年第01期16卷 84-95页

作者： Amlan Kumar Patra Luana Paula dos Santos Ribeiro Hirut Yirga Adekayode O.Sonibare Ahmed R.Askar Ali H.Hussein Ryszard Puchala Arthur Louis Goetsch American Institute for Goat research Langston University Animal and Poultry Nutrition Department Desert Research Center Agriculture Food and Natural ResourcesEastern New Mexico University

Understanding how different livestock species and breeds respond to consumption of brackish water could improve usage of this ***,Angora,Boer,and Spanish goat doelings and Dorper,Katahdin,and *** ewe lambs (6 animals per animal type[AT];initial age=296±2.1 days)consuming water with varying concentrations of minerals of a natural brackish water source (BR) and sodium chloride (NaCl;SL) were used to determine effects on water and feed intake,nutrient digestion,heat energy,methane emission,ruminal fluid conditions,and blood constituent *** were 6 simultaneous 6 (water treatments[WT])×6 (AT) Latin squares with 3-wk *** WT were fresh (FR),BR alone (100-BR),a similar total dissolved solids (TDS) concentration as 100-BR via NaCl addition to FR (100-SL),BR with concentrations of all minerals increased by approximately 50%(150-BR),a similar TDS level as 150-BR by NaCl addition to FR (150-SL),and a similar 150 TDS level achieved by addition of a 1:1 mixture of BR minerals and NaCl to 100-BR (150-BR/SL).Concentrations (mg/kg) in BR were 4928 TDS,85.9 bicarbonate,224.9 calcium,1175 chloride,60.5 magnesium,4.59 potassium,1387sodium,1962 sulfate,and 8.3 boron,and TDS in other WT were 209,5684,7508,8309,and 7319 mg/kg for FR,100-SL,150-BR,150-SL,and 150-BR/SL,*** were very few significant effects of WT or AT×WT interactions,although AT had numerous *** intake was affected by AT (P=0.02)and WT (P=0.04),with greater water intake for 150-SL than for FR,100-BR,100-SL,and *** matter intake among AT was lowest (P<0.05) for *** of organic matter and neutral detergent fiber and heat energy differed among AT (P<0.05),but nitrogen digestion and ruminal methane emission were similar among *** aldosterone concentration was higher (P<0.05) for FR than for other *** conclusion,all AT seemed resilient to these WT regardless of mineral source and concentrations,with TDS less than 8300 mg/kg,which did

关键词： Goats Hair sheep Nutrient utilization Ruminal fermentation Salinity Water quality

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