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Dietary curcumin alleviates intestinal damage induced by ochratoxin A in juvenile grass carp (Ctenopharyngodon idella): Necroptosis and inflammatory responses

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ANIMAL NUTRITION 2024年第3期18卷 119-132页

作者： Zhao, Piao Jiang, Wei-Dan Wu, Pei Liu, Yang Ren, Hong-Mei Jin, Xiao-Wan Feng, Lin Zhou, Xiao-Qiu sichuan Agr Univ Anim Nutr Inst Chengdu 611130 Sichuan Peoples R China sichuan Agr Univ Fish Nutr & Safety Prod Univ Key Lab Sichuan Prov Chengdu 611130 Sichuan Peoples R China Minist Agr & Rural Affairs Minist Educ Key Lab Anim Dis Resistance Nutr Key Lab Sichuan Prov Beijing 611130 Sichuan Peoples R China

Ochratoxin A (OTA) is one of the most common pollutants in aquatic feed. As a first line of defense, intestinal barriers could be utilized against OTA in order to prevent disorders. Natural product supplementation is one of the most popular strategies to alleviate toxicity induced by mycotoxins, but there is a lack of knowledge about how it functions in the teleost intestine. In this study, 720 juvenile grass carp of about 11 g were selected and four treatment groups (control group, OTA group, curcumin [Cur] group, and OTA + Cur group) were set up to conduct a 60-day growth test. After the test, the growth performance and intestinal health related indexes of grass carp were investigated. The addition of dietary Cur could have the following main results: (1) inhibit absorption and promote efflux transporters mRNA expression, reducing the residuals of OTA, (2) decrease oxidative stress by reducing oxidative damage and enhancing the expression of antioxidant enzymes, (3) promote mitochondrial fusion proteins to inhibit the expression of mitotic proteins and mitochondrial autophagy proteins and enhance mitochondrial function, (4) reduce necroptosis-related gene expression through inhibiting the tumor necrotic factor receptor-interacting protein kinase/mixed lineage kinase domain-like pathway, (5) reduce the expression of pro-inflammatory factors by inhibiting the Toll-like receptor 4/nuclear factor-kappa B signaling pathway to alleviate the intestinal inflammatory response. In summary, the results suggested that Cur could alleviate OTA-induced intestinal damage by enhancing antioxidant capacity and mitochondrial function as well as reducing necroptosis and inflammation in the grass carp intestine. This study provided a theoretical basis and production implications for dietary Cur that could improve growth performance and alleviate the intestinal damage induced by OTA in fish. (c) 2024 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co.

关键词： Curcumin Ochratoxin A Grass carp growth performance Mid-intestine mitochondria function Necroptosis NF-KAPPA-B GROWTH-PERFORMANCE FISH METABOLISM TOXICITY EXPOSURE IMMUNITY MODEL

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Establishing the link between D-mannose and juvenile grass carp ( Ctenopharyngodon idella): ): Improved growth and intestinal structure associated with endoplasmic reticulum stress, mitophagy, and apical junctional complexes

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ANIMAL NUTRITION 2024年第3期18卷 450-463页

作者： Zhang, Chong Feng, Lin Wu, Pei Liu, Yang Jin, Xiaowan Ren, Hongmei Li, Hua Wu, Fali Zhou, Xiaoqiu Jiang, Weidan sichuan Agr Univ Anim Nutr Inst Chengdu 611130 Peoples R China sichuan Agr Univ Univ Key Lab Sichuan Prov Fish Nutr & Safety Prod Chengdu 611130 Peoples R China Minist Agr & Rural Affairs Minist Educ Key Lab Anim Dis Resistance Nutr Key Lab Sichuan Prov Chengdu 611130 Peoples R China

D-mannose, essential for protein glycosylation, has been reported to have immunomodulatory effects and to maintain intestinal flora homeostasis. In addition to evaluating growth performance, we examined the impact of D-mannose on the structure of epithelial cells and apical junction complexes in the animal intestine. All 1800 grass carp (16.20 +/- 0.01 g) were randomly divided into six treatments with six replicates of 50 fish each and fed with six different levels of D-mannose (0.52, 1.75, 3.02, 4.28, 5.50 and 6.78 g/kg diet) for 70 d. The study revealed that D-mannose increased feed intake (P P 0.05). Dmannose supplementation at 1.75 g/kg increased crude protein content in fish and lipid production value (P P provement may be attributed to the phosphomannose isomerase (PMI)-mediated enhancement of glycolysis. This study found that Dmannose supplementation at 4.28 or 3.02 g/kg reduced serum diamine oxidase activity or D-lactate content (P P proved cellular and intercellular structures for the first time. The improvement of cellular redox homeostasis involves alleviating endoplasmic reticulum (ER) stress through the inositolrequiring enzyme 1 (IRE1), RNA-dependent protein kinase-like ER kinase (PERK), and activating transcription factor 6 (ATF6) signaling pathways. The alleviation of ER stress may be linked to the phosphomannomutase (PMM)-mediated enhancement of protein glycosylation. In addition, ubiquitindependent [PTEN-induced putative kinase 1 (PINK1)/Parkin] and ubiquitin-independent [BCL2interacting protein 3-like (BNIP3L), BCL2-interacting protein 3 (BNIP3), and FUN14 domain containing 1 (FUNDC1)] mitophagy may play a role in maintaining cellular redox homeostas

关键词： Grass carp ( Ctenopharyngodon idella ) D-mannose Intestine structure Endoplasmic reticulum stress Mitophagy Apical junctional complex NF-KAPPA-B ANTIOXIDANT STATUS OXIDATIVE STRESS PHYSICAL BARRIER TIGHT JUNCTIONS GRADED-LEVELS HOMEOSTASIS APOPTOSIS NRF2 MITOCHONDRIAL

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Dietary copper improves intestinal structural integrity in juvenile grass carp (Ctenopharyngodon idella) probably related to its increased intestinal antioxidant capacity and apical junction complex

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ANIMAL NUTRITION 2024年第3期18卷 96-106页

作者： Ma, Rui Feng, Lin Wu, Pei Liu, Yang Ren, Hong-Mei Jin, Xiao-Wan Li, Shu-Wei Tang, Ling Zhou, Xiao-Qiu Jiang, Wei-Dan sichuan Agr Univ Anim Nutr Inst Chengdu 611130 Peoples R China sichuan Agr Univ Fish Nutr & Safety Prod Univ Key Lab Sichuan Prov Chengdu 611130 Peoples R China Minist Agr & Rural Affairs Minist Educ Key Lab Anim Dis Resistance Nutr Key Lab Sichuan Prov Chengdu 611130 Peoples R China sichuan Animtech Feed Co Ltd Anim Nutr Inst Sichuan Acad Anim Sci Chengdu 610066 Peoples R China

This research evaluated the effects of copper (Cu) on intestinal antioxidant capacity and apical junctional complex (AJC) in juvenile grass carp. A total of 1080 healthy juvenile grass carp (11.16 +/- 0.01 g) were fed six diets including different dosages of Cu, namely 0, 2, 4, 6, 8 mg/kg (Cu citrate [CuCit] as Cu source) and 3 mg/kg (CuSO4 center dot 5H(2)O as Cu source). The trial lasted for 9 weeks. The findings revealed that dietary optimal Cu supplementation (2.2 to 4.1 mg/kg) promoted intestinal growth, including intestinal length, intestinal length index, intestinal weight, and intestinal somatic index (P 0.05). On the other hand, optimal Cu increased intestinal tight junction (TJ) proteins (except for claudin 15b) and adherens junction (AJ) proteins (E-cadherin, alpha-catenin, beta-catenin, nectin and afadin) mRNA levels (P provide a theoretical foundation for identifying putative Cu regulation pathways on fish intestinal he

关键词： Copper Ctenopharyngodon idella Structural integrity Intestine NF-KAPPA-B GROWTH-PERFORMANCE ENZYME-ACTIVITIES DIAMINE OXIDASE IMMUNE FUNCTION DEFICIENCY SUPPLEMENTATION REQUIREMENT NRF2 PhospHORUS

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Aflatoxin B1 decreased flesh flavor and inhibited muscle development in grass carp (Ctenopharyngodon idella)

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ANIMAL NUTRITION 2024年第3期18卷 27-38页

作者： He, Xiang-Ning Zeng, Zhen-Zhen Jiang, Wei-Dan Wu, Pei Liu, Yang Kuang, Sheng-Yao Tang, Ling Li, Shu-Wei Feng, Lin Zhou, Xiao-Qiu sichuan Agr Univ Anim Nutr Inst Chengdu 611130 Peoples R China sichuan Agr Univ Fish Nutr & Safety Prod Univ Key Lab Sichuan Prov Chengdu 611130 Peoples R China Minist Agr & Rural Affairs Minist Educ Key Lab Anim Dis Resistance Nutr Key Lab Sichuan Prov Chengdu 611130 Peoples R China sichuan Acad Anim Sci Anim Nutr Inst Chengdu 610066 Peoples R China

In nature, aflatoxins, especially aflatoxin B1 (AFB1), are the common mycotoxins, which cause serious health problems for humans and animals. This paper aimed to study the effects of AFB1 on flesh flavor and muscle development of grass carp (Ctenopharyngodon idella) and its mechanism. There were 1440 individual fish in total, with 6 treatments and each treatment replicated 3 times. The 6 treatments were fed a control diet with different doses of AFB1 (0.04, 29.48, 58.66, 85.94, 110.43 and 146.92 mu g/kg diet) for 60 d. AFB1 increased myofiber diameter, as well as decreased myofiber density of grass carp muscle (P hosphorylate-38 mitogen-activated protein kinase (p-p38MAPK), phosphorylate-c-Jun N-terminal kinase, urokinase-type plasminogen activator (uPA), MMP-2 and MMP-9 were upregulated (P < 0.05), but collagen I, laminin beta 1 and fibronectin were downregulated (P < 0.05) with the dietary AFB1 increased in the muscle of grass carp. Based on the results of this study, we can draw the following conclusion: d

关键词： Aflatoxin B1 Flesh flavor Muscle development Grass carp PLASMINOGEN-ACTIVATOR ANTIOXIDANT CAPACITY MYOBLAST CELLS AMINO-ACID EXPRESSION RECEPTOR GROWTH SUPPLEMENTATION METABOLISM MECHANISMS

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Characterization of serum proteomic and inflammatory profiling at early stage of iron deficiency in weaned piglets

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ANIMAL NUTRITION 2024年第3期18卷 380-389页

作者： Liu, Guang Li, Lan Liu, Shuan Dong, Zhenglin Zhou, Jian Gong, Chengyan Yin, Yulong Tang, Wenjie Wan, Dan Chinese Acad Sci Inst Subtrop Agr Lab Anim Nutr Physiol & Metab Proc Key Lab Agroecol Proc Subtrop Reg Changsha 410125 Peoples R China Huazhong Agr Univ Coll Anim Sci & Technol Hubei Hongshan Lab Wuhan 430070 Peoples R China Beijing Dabeinong Technol Grp Co Ltd Beijing 100080 Peoples R China Univ Chinese Acad Sci Beijing 101408 Peoples R China sichuan Anim Sci Acad Anim Breeding & Genet Key Lab Sichuan Prov Chengdu 610066 Peoples R China sichuan Animtech Feed Co Ltd Livestock & Poultry Biol Prod Key Lab Sichuan Prov Chengdu 610066 Peoples R China

The objective of this study was to examine the early serum proteomic and inflammatory profiles of weaned piglets subjected to iron deficiency. Twelve healthy piglets (Duroc x Landrace x Large Yorkshire, body weight: 4.96 +/- 0.05 kg) were weaned at 21 days of age. Subsequently, these animals were randomly allocated to one of two groups, with six replicates in each group (maintaining a male-to-female ratio of 1:1), the control group (administered 100 mg/kg Fe as FeSO4$H2O) and L-Fe group (no additional Fe supplementation). The results showed that 42 days after initiating, compared with control group, routine blood analysis revealed a reduction in serum iron content, red blood cell (RBC) count, hemoglobin (HGB) content, hematocrit (HCT), and mean corpuscular volume (MCV) (P 0.05). During the early stages of iron deficiency, piglets exhibited increased villus height (VH) and the ratio of VH to crypt depth (CD) in the duodenum (P < 0.05) and increased expression levels of iron transporters, including duodenal cytochrome (Cybrd), divalent metal transport 1 (DMT1), and ferritin light chain (FTL) (P < 0.05). Subsequently, isobaric tags for relative and absolute quantitation (iTRAQ) were used to identify serum proteins. Gene Ontology (GO) analysis of the differentially abundant proteins (DAP) revealed that 24 of the 30 DAP were involved in platelet function, immune response, cellular metabolism, transcription, and protein synthesis. Notably, prothrombin, asporin (ASPN), and Rac family small GTPase 3 (RAC3) expression was induced, whereas glycoprotein Ib platelet subunit alpha (GPIbA) expression was decreased. This

关键词： Piglet Iron deficiency Proteomics Inflammatory Cytokine Immune response DIETARY IRON GLYCINE CHELATE ANEMIA SUPPLEMENTATION EXPRESSION HEPCIDIN IMMUNE GROWTH TRANSPORTERS PERFORMANCE

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Dietary saccharin sodium supplementation improves the production performance of dairy goats without residue in milk in summer

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ANIMAL NUTRITION 2024年第3期18卷 166-176页

作者： Zhang, Xiongfei Lv, Jirong Hui, Jingtao Wu, Ao Zhao, Lichao Feng, Linyu Deng, Lu Yu, Miao Liu, Feng Yao, Junhu Lei, Xinjian Northwest A&F Univ Coll Anim Sci & Technol Yangling 712100 Shaanxi Peoples R China Northwest A&F Univ Key Lab Livestock Biol Yangling 712100 Shaanxi Peoples R China DadHank Biotechnol Corp Sichuan Prov Anim Feeding Regulat Ctr Chengdu 611130 Sichuan Peoples R China

The purpose of this study was to investigate the effects of dietary saccharin sodium supplementation on production performance, serum biochemical indicators, and rumen fermentation of dairy goats in summer. Twelve Guanzhong dairy goats with similar body weight, days in milk, and milk yield were randomly divided into two dietary treatments: (1) CON: basal diet; (2) SS: basal diet + 150 mg/kg saccharin sodium on the basis of dry matter. The experiment lasted 35 d, including 7 d for adaptation and 28 d for dietary treatments, sampling and data collection. Each dairy goat was housed individually in a clean separate pen with ad libitum access to diet and water. The goats fed SS diet had increased dry matter intake (DMI; P = 0.037), 4% fat corrected milk yield (P = 0.049), energy corrected milk yield (P = 0.037), milk protein yield (P = 0.031), and total solids yield (P = 0.036). Serum activity of aspartate aminotransferase (P = 0.047) and concentrations of 70-kDa heat shock protein (P = 0.090), malondialdehyde (P = 0.092), and total protein (P = 0.057) were lower in goats fed SS diet than those fed CON diet. Supplementation of saccharin sodium tended to increase activity of glutathione peroxidase in serum (P = 0.079). The concentrations of rumen total volatile fatty acid (P = 0.042) and butyrate (P = 0.038) were increased by saccharin sodium supplementation. Dietary supplementation of saccharin sodium increased the relative abundance of Lachnobacterium (P = 0.022), Pseudoramibacter (P = 0.022), Shuttleworthia (P = 0.025), and Syntrophococcus (P = 0.037), but reduced the relative abundance of Prevotella_1 (P = 0.037) and Lachnospiraceae_UCG_008 (P = 0.037) in rumen. Saccharin sodium was observed in feces and urine of goats fed diet supplemented with saccharin sodium, but saccharin sodium was undetectable in the milk of goats receiving SS diet. In conclusion, administration of saccharin sodium was effective in increasing fat and energy corrected milk yield by increasing DM

关键词： Dairy goat Heat stress Production performance Rumen fermentation Rumen microorganisms Saccharin sodium HEAT-STRESS PHYSIOLOGICAL-RESPONSES RUMINAL FERMENTATION GROWTH-PERFORMANCE RUMEN FERMENTATION FEEDING-BEHAVIOR OXIDATIVE STATUS CLIMATE-CHANGE CALVES ADAPTATION

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Protein hydrogels for biomedical applications

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BIOSURFACE AND BIOTRIBOLOGY 2024年第3期10卷 106-131页

作者： Wang, Xinyi Hou, Yue Lu, Xiong Xie, Chaoming Jiang, Yanan Southwest Jiaotong Univ Coll Med Inst Biomed Engn Chengdu Sichuan Peoples R China Southwest Jiaotong Univ Sch Mat Sci & Engn Minist Educ Key Lab Adv Technol Mat Chengdu Sichuan Peoples R China Southwest Jiaotong Univ Peoples Hosp Chengdu 3 Obes & Metab Med Engn Integrat Lab Dept Gen SurgAffiliated Hosp Chengdu Sichuan Peoples R China

Hydrogels, characterised as highly hydrophilic three-dimensional polymer networks, have gained increasing attention due to their unique physicochemical properties, finding applications in various fields. Natural polymer hydrogels exhibit higher biocompatibility and biodegradability compared to traditional synthetic polymer hydrogels. Proteins, being the principal materials of natural polymer hydrogels, bear numerous modifiable functional groups. The resultant hydrogel possesses responsiveness, adjustable degradability, and underway as an excellent biomaterial. Seven common raw materials used to construct protein hydrogels are introduced. In terms of comparing natural polymer hydrogels with traditional synthetic polymer hydrogels, the authors conduct a detailed analysis and comparison, highlighting the advantages of natural polymer hydrogels in terms of biocompatibility and biodegradability, and summarising their characteristics. The authors also address the limitations of various protein hydrogels and list existing strengthening cross-linking strategies, proposing new insights to overcome the application limits of protein hydrogels. Additionally, the applications of protein hydrogels in drug delivery, biosensing, bio-inks and tissue engineering are discussed. The authors conclude by summarising the current challenges faced by protein hydrogels and prospecting its future development.

关键词： biomaterials biomedical application HUMAN HAIR KERATIN CROSS-LINKING SILK-FIBROIN EXTRACELLULAR VESICLES ARTICULAR-CARTILAGE COLLAGEN STRUCTURE ALGINATE HYDROGEL DRUG-DELIVERY STEM-CELLS SOY

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Surface active functional groups enhanced PET non-woven fabric for the filtering of harmful substances in smoke

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BIOSURFACE AND BIOTRIBOLOGY 2024年第1期10卷 1-6页

作者： Ning, Lu Tang, Pengfei Lu, Xiong Yang, Guangyuan Jiang, Faxing Zhang, Hongping China Tobacco Hubei Ind Co Ltd Wuhan Peoples R China sichuan Univ Coll Architecture & Environm Key Lab Sichuan Prov Failure Mech & Engn Disaster Prevent & Mitigat Chengdu Peoples R China Southwest Jiaotong Univ Sch Mat Sci & Engn Key Lab Adv Technol Mat Minist Educ Chengdu Sichuan Peoples R China Chengdu Univ Inst Adv Study Sch Mech Engn Chengdu Peoples R China

Harmful components in cigarette smoke, such as nicotine, tar, and organic particulate matter, are the primary culprits behind lung diseases. While conventional filter materials based on cellulose, carbon, and molecular sieves exhibit commendable filtration capabilities, their high cost restricts their widespread applications. Based on this, the authors aim to prepare PET-based filter materials with good adsorption properties through a simple surface functionalisation strategy. The adsorption performance of the PET-based non-woven fabric was enhanced by the introduction of sodium alginate (SA). The gas adsorption experiments results reveal that SA-modified PET (SA-PET) exhibits significantly improved filtration efficiency for nicotine, tar, and total particulate matter-increasing by 27.1%, 26.2%, and 21.3%, respectively. Moreover, SA-PET exhibits more odour control ability than traditional activated carbon-based filter materials. These results prove that surface-functionalised SA-PET has better filtration performance for harmful substances in smoke and provides a new strategy for the design of high-performance filtration materials.

关键词： adsorption mechanism polymers

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Hepatic mucormycosis mimicking hilar cholangiocarcinoma:A case report and literature review

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World Journal of Gastroenterology 2010年第8期16卷 1039-1042页

作者： Li, Ke-Wei Wen, Tian-Fu Li, Gan-Di sichuan Univ W China Hosp Div Liver Transplantat Chengdu 610041 Sichuan Prov Peoples R China sichuan Univ W China Hosp Dept Pathol Chengdu 610041 Sichuan Prov Peoples R China

Mucormycosis is a rare but invasive opportunistic fungal infection associated with a high mortality rate,and normally occurs in immunocompromised patients. In this report,we describe an immunocompetent patient suffering from hepatic mucormycosis secondary to adrenal mucormycosis,which masquerades as hilar cholangiocarcinoma. After surgical procedure and treatment with amphotericin B and itraconazole,the patient recovered well and had a 2-year infection-free survival. To our knowledge,this special clinical manifestation of hepatic infection as well as adrenal mucormycosis has not been reported to date. Mean-while,this is the first case of an immunocompetent patient with both adrenal and hepatic mucormycosis who has been treated successfully.

关键词： Adrenal gland Hilar cholangiocarcinoma Liver Mucormycosis

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Application of contrast-enhanced intraoperative ultrasonography in the decision-making about hepatocellular carcinoma operation

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World Journal of Gastroenterology 2010年第4期16卷 508-512页

作者： Wu, Hong Lu, Qiang Luo, Yan He, Xian-Lu Zeng, Yong sichuan Univ W China Hosp Dept Hepatobiliary Pancreat Surg Chengdu 610041 Sichuan Prov Peoples R China sichuan Univ W China Hosp Dept Sonog Chengdu 610041 Sichuan Prov Peoples R China

AIM:To evaluate the detection and differentiation ability of contrast-enhanced intraoperative ultrasonography(CE-IOUS) in hepatocellular carcinoma(HCC) ***:Clinical data of 50 HCC patients were retrospective *** sensitivity,specificity,false negative and false positive rates of contrast enhanced magnetic resonance imaging(CE-MRI),IOUS and CEIOUS were calculated and *** strategy changes due to CE-IOUS were ***:Lesions detected by CE-MRI,IOUS and CEIOUS were 60,97 and 85 *** sensitivity,specificity,false negative rate,false positive rate of CEMRI were 98.2%,98.6%,98.6%,60.0%,respectively;for IOUS were 50.0%,90.9%,1.8%,1.4%,respectively;and for CE-IOUS were 1.4%,40.0%,50.0%,9.1%,*** operation strategy of 9(9/50,18.0%) cases was changed according to the results of ***:Compared with CE-MRI,CE-IOUS performs better in detection and differentiation of small metastasis and regenerative *** plays an important role in the decision-making of HCC operation.

关键词： Hepatocellular carcinoma Liver resection Contrast enhanced magnetic resonance imaging Intraoperative ultrasonography Contrast-enhanced intraoperative ultrasonography

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