scholarly journals Holly (Ilex latifolia Thunb.) Polyphenols Extracts Alleviate Hepatic Damage by Regulating Ferroptosis Following Diquat Challenge in a Piglet Model

2020 ◽  
Vol 7 ◽  
Author(s):  
Pengwei He ◽  
Hongwei Hua ◽  
Wei Tian ◽  
Huiling Zhu ◽  
Yulan Liu ◽  
...  

Background: Holly (Ilex latifolia Thunb.) polyphenols extracts (HPE) contain high amounts of polyphenols, including phenolic acids, triterpenoids, tannic acids, and so on, which have strong antioxidant function. This experiment was aimed to explore the protective effect and mechanism of HPE against hepatic injury induced by diquat.Methods: Thirty-two weaned piglets were allotted by a 2 × 2 factorial experiment design with diet type (basal diet vs. HPE diet) and diquat challenge (saline vs. diquat). On the 21st day, piglets were injected with diquat or saline. One week later, blood samples were collected. Then all piglets were slaughtered and hepatic samples were collected.Results: Dietary HPE supplementation improves hepatic morphology, the activities of plasma aspartate aminotransferase, alanine aminotransferase, and glutamyl transpeptidase, and enhances hepatic anti-oxidative capacity, while it regulates the expression of ferroptosis mediators (transferrin receptor protein 1, heat shock protein beta 1, solute carrier family 7 member 11, and glutathione peroxidase 4) in diquat-challenged piglets.Conclusion: These results indicate that dietary HPE supplementation enhances hepatic morphology and function, which is involved in modulating antioxidant capacity and ferroptosis.

2018 ◽  
Vol 19 (10) ◽  
pp. 3277
Author(s):  
Tao Wu ◽  
Kang Li ◽  
Dan Yi ◽  
Lei Wang ◽  
Di Zhao ◽  
...  

Trihexanoin is a short-chain triglyceride (SCT). Many studies have reported that SCTs play important roles in the maintenance of intestinal epithelial structure and function. The present work was to investigate the effects of trihexanoin on growth performance, carbohydrate and fat metabolism, as well as intestinal morphology and function in weaned piglets. Twenty weaned piglets (21 ± 2 d) were randomly allocated to one of two treatment groups: The control group (basal diet supplemented with 0.5% soya oil); the TH group (basal diet supplemented with 0.5% trihexanoin). Dietary trihexanoin supplementation significantly reduced diarrhea rate; increased the concentrations of LDL, HDL and total protein in plasma; decreased cholesterol concentrations and glutamyl transpeptidase activity in plasma; improved intestinal morphologic structure; altered the mRNA levels and abundances of proteins related to glycogen and fat metabolism, mucosal barrier function, antioxidant capacity and water transport capacity; and altered the community of intestinal microflora. These results indicate that dietary trihexanoin supplementation could reduce diarrhea, regulate carbohydrate and fat metabolism, exert beneficial effects on the intestinal mucosal barrier, protect the intestinal mucosa from injuries, improve intestinal transport and absorption, and enhance antioxidant capacity. In conclusion, dietary supplementation with 0.5% trihexanoin improves the intestinal function and health of weaned piglets.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 302-303
Author(s):  
Tao Wu

Abstract Trihexanoin is a short-chain triglyceride (SCT). Many studies have reported that SCTs play important roles in the maintenance of intestinal epithelial structure and function. The present work was to investigate the effects of trihexanoin on growth performance, carbohydrate and fat metabolism, as well as intestinal morphology and function in weaned piglets. Twenty weaned piglets (21 ± 2 d) were randomly allocated to one of two treatment groups: the control group (basal diet supplemented with 0.5% soya oil); the TH group (basal diet supplemented with 0.5% trihexanoin). Dietary trihexanoin supplementation significantly reduced diarrhea rate (P < 0.05); increased the concentrations of LDL, HDL and total protein, decreased cholesterol concentrations (CHOL) and glutamyl transpeptidase (GGT) activity in plasma (P < 0.05); increased villus height, surface area, and the ratio of villus height to crypt depth (P < 0.05); altered the mRNA levels and abundances of proteins related to glycogen and fat metabolism (gene LIPE, LPL, PPARG, ACACA, FASN, SLC27A2, INSR, PCK1 and ASS1), mucosal barrier function (protein claudin-1, and occludin), antioxidant capacity (protein HSP70 and gene Nrf2, NOX2 and GSTO2) and water transport capacity (protein AQP3 and gene AQP8 and AQP10) (P < 0.05); altered the gene abundance of intestinal bacteria (Enterobacteriaceae, Enterococcus, Clostridium, Lactobacillus and Bifidobacterium) (P < 0.05). In conclusion, dietary supplementation of trihexanoin improved the intestinal function and health of weaned piglets by regulating nutrient metabolism, improving intestinal function of mucosal barrier, transport, absorption and antioxidant, and altering the community of microbiota.


Author(s):  
Tao Wu ◽  
Kang Li ◽  
Yang Lyu ◽  
Dan Yi ◽  
Di Zhao ◽  
...  

Both lactic acid and short chain fatty acid (SCFA) play important roles in maintenance of intestinal epithelial structure and function. Trilactic glyceride (TLG) obtains both excellences of lactic acid and SCFA. This study was to investigate the effects of trilactic glyceride on growth performance, blood parameters, liver function, intestinal morphology and intestine function of piglets. Twelve weaned piglets (21±2 d) were randomly allocated to two treatment groups: 1) control group, piglets fed the basal diet; 2) TLG group, piglets fed the basal diet supplemented with 0.5 % TLG. On day 21 of the trial, D-xylose (0.1 g/kg·BW) was orally administrated to all piglets and blood samples were collected 1 h thereafter. Then, all the piglets were sacrificed to examine intestinal mucosal morphology and collect fatty tissue, liver and intestinal mucosa for further analysis. The results showed that: compared with the control group, TLG group decreased blood ALB and GGT on day 10 and 20, TLG group decreased blood TP and increased blood TG on day 20 of the trail (p < 0.05); TLG group decreased blood D-xylose and LDL, increased blood HDL (p < 0.05). These data suggested that supplementing trilactic glyceride had beneficial impacts on promoting nutrients’ metabolism, maintaining intestinal integrity, and alleviating oxidative stress and diarrhoea. Further research of molecular mechanisms showed changing expression levels of related proteins and genes, suggesting that these could be involved in the regulation of the impact. The community composition of the gut microbiota was also found to be altered in several operational taxonomic units within the genus, Prevotella (order Bacteroidales), and the order, Clostridiales.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 202-203
Author(s):  
Sudario Roberto Silva Junior ◽  
Maíra Resende ◽  
Rhuan F Chaves ◽  
Jéssica Aparecida Barbosa ◽  
Iana I M Ferreira ◽  
...  

Abstract Benzoic acid (BA) and essential oils (EO) can minimize growth performance losses due to the removal of antibiotics and change the intestinal health of weaned piglets. The objective of this study was to evaluate the effects of BA and EO on inflammatory response, diarrhea incidence, and growth performance of the nursery phase. One hundred and twenty barrows were weaned at 23 days (6.40 ± 0.53 kg) and assigned into 3 treatments (10 replicates) in randomized block design: basal diet without additives (NC), basal diet with 200 ppm of colistin sulphate (PC), and association of 0,3% benzoic acid and essential oil (BA+EO). The feed intake and body weight were recorded at 0 and 42 days. The feces were assessed daily (per animal) and graded as normal feces (no diarrhea) or liquid or pasty stools (presence of diarrhea). On days 1, 3, and 9, blood samples were collected (5 replicates) for white blood cells (WBC) counts. Growth performance was analyzed by MIXED procedure (SAS, 2009) and the Tukey test was used to compare the means (P < 0.050). The WBC counts were analyzed by repeated-measures analysis of variance, by MIXED procedure. Diarrhea incidence was analyzed by GENMOD procedure (SAS, 2009). The BA+EO treatment showed a similar body weight (P = 0.014) and average daily gain (P = 0.012) than the PC group and lower feed conversion ratio (P = 0.037) compared to the NC group. The pigs of the BA+EO treatment had the lowest diarrhea incidence during the total period (P < 0.001). The supplementation with BA+EO or antibiotics reduced the counts of total WBC (P = 0.008) and neutrophils (P = 0.003). In conclusion, supplementation with BA+EO reduces the inflammatory response and the incidence of diarrhea in the nursery phase, that may be related to the improvement in the FCR.


2017 ◽  
Vol 176 (10) ◽  
pp. 1295-1303 ◽  
Author(s):  
Hemananda Muniraman ◽  
Danielle Gardner ◽  
Jane Skinner ◽  
Anna Paweletz ◽  
Anitha Vayalakkad ◽  
...  

Author(s):  
Kaiwen Bai ◽  
Luyi Jiang ◽  
Qiming Li ◽  
Jingfei Zhang ◽  
Lili Zhang ◽  
...  

Abstract Few studies have focused on the role of dimethylglycine sodium salt (DMG-Na) in protecting the redox status of skeletal muscle, although it is reported to be beneficial in animal husbandry. This study investigated the beneficial effects of DMG-Na on the growth performance, longissimus dorsi muscle (LM) redox status, and mitochondrial function in weaning piglets that were intrauterine growth restricted (IUGR). Ten normal birth weight (NBW) newborn piglets (1.53 ± 0.04 kg) and 20 IUGR newborn piglets (0.76 ± 0.06 kg) from ten sows were obtained. All piglets were weaned at 21 days of age and allocated to three groups with ten replicates per group: NBW-weaned piglets fed a common basal diet (N); IUGR weaned piglets fed a common basal diet (I); IUGR weaned piglets fed a common basal diet supplemented with 0.1% DMG-Na (ID). They were slaughtered at 49 days of age to collect the serum and LM samples. Compared with the N group, the growth performance, LM structure, serum, and, within the LM, mitochondrial redox status, mitochondrial respiratory chain complex activity, energy metabolites, redox status-related, cell adhesion-related, and mitochondrial function-related gene expression, and protein expression deteriorated in group I (P < 0.05). The ID group showed improved growth performance, LM structure, serum, and, within the LM, mitochondrial redox status, mitochondrial respiratory chain complex activity, energy metabolites, redox status-related, cell adhesion-related, and mitochondrial function-related gene expression, and protein expression compared with those in the I group (P < 0.05). The above results indicated that the DMG-Na treatment could improve the LM redox status and mitochondrial function in IUGR weaned piglets via the Nuclear factor erythroid 2-related factor 2 (Nrf2)/ Sirtuin 1 (SIRT1)/ Peroxisome proliferator-activated receptorγcoactivator-1α (PGC1α) network, thus improving their growth performance.


Nutrients ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 79 ◽  
Author(s):  
Thu Ha Pham ◽  
Sylvain Lecomte ◽  
Theo Efstathiou ◽  
Francois Ferriere ◽  
Farzad Pakdel

Biologically active plant-based compounds, commonly referred to as phytochemicals, can influence the expression and function of various receptors and transcription factors or signaling pathways that play vital roles in cellular functions and are then involved in human health and diseases. Thus, phytochemicals may have a great potential to prevent and treat chronic diseases. Glyceollins, a group of phytoalexins that are isolated from soybeans, have attracted attention because they exert numerous effects on human functions and diseases, notably anticancer effects. In this review, we have presented an update on the effects of glyceollins in relation to their potential beneficial roles in human health. Despite a growing number of studies suggesting that this new family of phytochemicals can be involved in critical cellular pathways, such as estrogen receptor, protein kinase, and lipid kinase signaling pathways, future investigations will be needed to better understand their molecular mechanisms and their specific significance in biomedical applications.


1978 ◽  
Vol 64 (2) ◽  
pp. 131-142 ◽  
Author(s):  
Silvio Fiala ◽  
Babulal Pragani ◽  
Melvin D. Reuber

Adult male Sprague Dawley rats on which end-to-side portacaval shunt (PCS) operation was performed did not develop hyperplastic nodules and hepatomas when they were fed 3'-methyl-4-dimethylaminoazobenzene in semisynthetic basal diet for periods of up to 169 days. In contrast, all the intact rats fed the same diet for only 75 days, developed hyperplastic nodules in the liver. Transferred to normal pellet for another 25 days, hepatomas developed in 100% of these animals. The amount of protein-bond 3'-Me-DAB was found to be much smaller in operated rats than in intact animals. The glutathione (GSH) level in PCS-operated rats was lower than in intact controls. A single large dose of 3'-Me-DAB led to the increase of only about 30% in the concentration of GSH during the period of 24–48 h, compared to the increase of 50–100% in non-operated rats. No clear tendency to a gradual increase in the activity of γ-glutamyl transpeptidase was noted in PCS-operated rats during the period of 5% months of 3'-Me-DAB feeding. The increase in GT-ase activity never exceeded 30% above the level of GT-ase in the livers of PCS-operated rats fed basal diet without the carcinogen. This striking inhibition of GT-ase increase induced by 3'-Me-DAB in PCS-operated rats contrasted with an increase of GT-ase activity by 5,000% found in livers of non-operated rats with hyperplastic nodules after 75 days of 3'-Me-DAB feeding and the increase by up to 10,000% in developed hepatomas. These effects and the inhibition of 3'-Me-DAB-induced hepatocarcinogenesis, manifested by lack of preneoplastic morphologic changes and the absence of hepatomas in rats after PCS, can best be explained by functional deficiency of the liver to metabolize the procarcinogen 3'-Me-DAB into an activated carcinogen.


2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Wenxiu Zhang ◽  
Chengling Bao ◽  
Jian Wang ◽  
Jianjun Zang ◽  
Yunhe Cao

Abstract Background Probiotics are used as a means to improve animal health and intestinal development. Saccharomyces boulardii is a well-known probiotic; however, few studies have examined the effects of S. boulardii on weaned piglet performance. Therefore, this 28-day study compared the effects of S. boulardii mafic-1701 and aureomycin in diets for weaned piglets on growth performance, antioxidant parameters, inflammation and intestinal microbiota. One hundred and eight piglets, weaned at 28 d of age (8.5 ± 1.1 kg), were randomly divided into the three dietary treatment groups with six pens and six piglets per pen (half male and half female). The dietary treatment groups were as follows: 1) basal diet (CON); 2) basal diet supplemented with 75 mg/kg aureomycin (ANT); 3) basal diet supplemented with 1 × 108 CFU/kg S. boulardii mafic-1701 (SB). Results Compared to CON group, SB group had higher feed efficiency (P < 0.05) in the last 14 d and lower diarrhea rate (P <  0.05) over the entire 28 d. Total superoxide dismutase in serum was markedly increased in SB group (P < 0.05). Moreover, compared with CON group, SB group decreased the levels of pro-inflammatory cytokines interleukin-6 (P <  0.01) and Tumor necrosis factor-α (P < 0.05) in jejunum. Supplementation of S. boulardii mafic-1701 increased the abundance of Ruminococcaceae_UCG_009 and Turicibacter (P < 0.05), whereas the abundance of unclassified_Clostridiaceae_4 was decreased (P < 0.05). Furthermore, S. boulardii mafic-1701 administration increased cecal concentration of microbial metabolites, isobutyrate and valerate (P < 0.05). Conclusions The improvement in feed conversion ratio, reduction in diarrhea rate in weaned piglets provided diets supplemented with S. boulardii mafic-1701 may be associated with enhanced antioxidant activity, anti-inflammatory responses and improved intestinal microbial ecology.


2006 ◽  
Vol 173 (5) ◽  
pp. 665-671 ◽  
Author(s):  
Yoshitaka Nakamori ◽  
Masahiro Emoto ◽  
Naofumi Fukuda ◽  
Akihiko Taguchi ◽  
Shigeru Okuya ◽  
...  

Tumor necrosis factor-α (TNF-α) signaling through the IκB kinase (IKK) complex attenuates insulin action via the phosphorylation of insulin receptor substrate 1 (IRS-1) at Ser307. However, the precise molecular mechanism by which the IKK complex phosphorylates IRS-1 is unknown. In this study, we report nuclear factor κB essential modulator (NEMO)/IKK-γ subunit accumulation in membrane ruffles followed by an interaction with IRS-1. This intracellular trafficking of NEMO requires insulin, an intact actin cytoskeletal network, and the motor protein Myo1c. Increased Myo1c expression enhanced the NEMO–IRS-1 interaction, which is essential for TNF-α– induced phosphorylation of Ser307–IRS-1. In contrast, dominant inhibitory Myo1c cargo domain expression diminished this interaction and inhibited IRS-1 phosphorylation. NEMO expression also enhanced TNF-α–induced Ser307–IRS-1 phosphorylation and inhibited glucose uptake. In contrast, a deletion mutant of NEMO lacking the IKK-β–binding domain or silencing NEMO blocked the TNF-α signal. Thus, motor protein Myo1c and its receptor protein NEMO act cooperatively to form the IKK–IRS-1 complex and function in TNF-α–induced insulin resistance.


Sign in / Sign up

Export Citation Format

Share Document