Son, Ji Yoon;Bae, Hyung Churl;Renchinkhand, Gereltuya;Nam, Myoung Soo;Kim, Woan-sub
Korean Journal of Agricultural Science
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v.47
no.1
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pp.83-93
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2020
Lactoferrin (LF) is an iron-binding glycoprotein that is present in colostrum, milk, and other body secretions. The objective of this study was to investigate the effects of lactoferrin hydrolysates (LHs) on the production of immunomodulatory factors, including inflammatory related cytokines. The nuclear factor (NF)-κB reporter assay using human embryonic kidney 293 cells (HEK-293) revealed that NF-κB activity was significantly decreased by 1, 50, and 100 ㎍/mL of LH and the fractions above and below the 10 kDa LH. The mRNA expression of interferon (IFN)-γ in rat basophilic leukemia mast cells (RBL-2H3) treated with the fraction above the 10 kDa LH decreased in a dose-dependent manner, but the cells treated with LH and the fraction below the 10 kDa LH showed an increased expression of IFN-γ in a dose-dependent manner. The level of cyclooxygenase (COX)-2 expression decreased dose-dependently in RBL-2H3 cells treated with LH and the fraction above the 10 kDa LH, but the cells treated with the fraction below the 10 kDa LH showed an increased COX-2 expression in a dose-dependent manner. The mRNA expression of interleukin (IL)-4) was dose-dependently decreased by the fraction below the 10 kDa LH in human mast cells (HMC-1). The mRNA expressions of tumor necrosis factor (TNF)-α and IL-6 were significantly dose-dependently decreased by the fractions above and below the 10 kDa LH, but was dose-dependently increased by LH. The production of IL-4 was a little increased by the fraction above the 10 kDa LH compared to the positive control, but was decreased with LH and the fraction below the 10 kDa LH in HMC-1 cells. It was concluded that LF hydrolysates had an immunomodulating effect on anti-, pro-inflammatory and anti-allergic reactions.
Ji, Seon Yeong;Hwangbo, Hyun;Kim, Min Yeong;Kim, Da Hye;Park, Beom Su;Park, Joung-Hyun;Lee, Bae-Jin;Lee, Hyesook;Choi, Yung Hyun
Journal of Marine Bioscience and Biotechnology
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v.13
no.2
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pp.86-93
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2021
A high salt diet contributes to kidney damage by causing hypoxia and oxidative stress. Recently, an increase in dietary salt has been reported to induce an inflammatory phenotype in immune cells, further contributing to kidney damage. However, studies on the exact mechanism and role of a high salt diet on the inflammatory response in the kidneys are still insufficient. In this study, a cisplatin-induced acute kidney injury model using C57BL/6 mice was used to analyze the effect of salt intake on kidney injury. Results showed that high salt administration aggravated kidney edema in mice induced by treatment with cisplatin. Moreover, the indicators of kidney and liver function impairment were significantly increased in the group cotreated with high salt compared with that treated with cisplatin alone. Furthermore, the exacerbation of kidney damage by high salt administration was also associated with a decrease in the number of cells in the immune regulatory system. Additionally, high salt administration further decreased renal perfusion functions along with increased cisplatin-induced damage to proximal tubules. This was accompanied by increased expression of T cell immunoglobulin, mucin domain 1 (a biomarker of kidney injury), and Bax (a pro-apoptotic factor). Moreover, cisplatin-induced expression of proinflammatory mediators and cytokines, including cyclooxygenase-2 and tumor necrosis factor-α in kidney tissue, was further increased by high salt intake. Therefore, these results indicate that the kidney's inflammatory response by high salt treatment can further promote kidney damage caused by various pathological factors.
Lee, Chang Wook;Park, Sang Mi;Kim, Eun Ok;Byun, Sung Hui;Kim, Sang Chan
Herbal Formula Science
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v.30
no.2
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pp.45-57
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2022
Objectives : Yukil-san (YIS, 六一散; Liu yi san) is composed of Talcum and Glycyrrhizae Radix, the name is said to be derived from the proportion of the two herbal components of the formula. The YIS originated from 'Formulas from the discussion illuminating the Yellow Emperor's Basic Question'(黃帝素問宣明論方; Huang di su wen xuan ming lun fang) written by Liu Wan-Su (劉完素). YIS could clear summerheat, resolve dampness, and augment the qi. This formula may be used to treat the common cold, influenza, acute gastroenteritis, cystitis, urethritis and bacillary dysentery. But, there is insufficient of study about the effects of YIS on the anti-inflammatory activities. The present study evaluated the anti-inflammatory effects of YIS on lipopolysaccharide (LPS)-activated RAW 264.7 cells. Methods : Cell viability was assessed by MTT assay and nitric oxide (NO) was evaluated by measuring the nitrite content in culture medium. Pro-inflammatory cytokines such as tumor necrosis factor-α, interleukin-1β and IL-6 were quantified by ELISA kit. The expression of proteins related with nuclear factor-κB (NF-κB) pathway and inducible NO synthase (iNOS) were assessed by western blot analysis. Results : YIS significantly inhibited the expression of iNOS increased by LPS, and thus significantly inhibited the production of NO. In addition, YIS significantly inhibited pro-inflammatory cytokines. In the regulation of inflammation, NF-κB pathway plays a crucial role. YIS inhibited the expression of p-IκBα and thus inhibited the translocation of NF-κB to the nucleus. Conclusions : These results suggest that YIS ameliorates inflammatory response in LPS-activated RAW 264.7 cells through the inhibition of inflammatory mediators, via suppression of the NF-κB pathway. Therefore, this study provides objective evidence for the anti-inflammatory effect of YIS including the underlying mechanisms.
Background: High concentrations of particulate matter less than 2.5 ㎛ in diameter (PM2.5) in poultry houses is an important cause of respiratory disease in animals and humans. Pseudomonas aeruginosa is an opportunistic pathogen that can induce severe respiratory disease in animals under stress or with abnormal immune functions. When excessively high concentrations of PM2.5 in poultry houses damage the respiratory system and impair host immunity, secondary infections with P. aeruginosa can occur and produce a more intense inflammatory response, resulting in more severe lung injury. Objectives: In this study, we focused on the synergistic induction of inflammatory injury in the respiratory system and the related molecular mechanisms induced by PM2.5 and P. aeruginosa in poultry houses. Methods: High-throughput 16S rDNA sequence analysis was used for characterizing the bacterial diversity and relative abundance of the PM2.5 samples, and the effects of PM2.5 and P. aeruginosa stimulation on inflammation were detected by in vitro and in vivo. Results: Sequencing results indicated that the PM2.5 in poultry houses contained a high abundance of potentially pathogenic genera, such as Pseudomonas (2.94%). The lung tissues of mice had more significant pathological damage when co-stimulated by PM2.5 and P. aeruginosa, and it can increase the expression levels of interleukin (IL)-6, IL-8, and tumor necrosis factor-α through nuclear factor (NF)-κB pathway in vivo and in vitro. Conclusions: The results confirmed that poultry house PM2.5 in combination with P. aeruginosa could aggravate the inflammatory response and cause more severe respiratory system injuries through a process closely related to the activation of the NF-κB pathway.
BACKGROUND/OBJECTIVES: Previous studies have reported that protein supplementation contributes to the attenuation of inflammation. Serious trauma such as burn injury usually results in the excessive release of inflammatory factors and organs dysfunction. However, a few reports continued to focus on the function of protein ingestion in regulating burn-induced inflammation and organ dysfunction. MATERIALS/METHODS: This study established the rat model of 30% total body surface area burn injury, and evaluated the function of blended protein (mixture of whey and soybean proteins). Blood routine examination, inflammatory factors, blood biochemistry, and immunohistochemical assays were employed to analyze the samples from different treatment groups. RESULTS: Our results indicated a decrease in the numbers of white blood cells, monocytes, and neutrophils in the burn injury group administered with the blended protein nutritional support (Burn+BP), as compared to the burn injury group administered normal saline supplementation (Burn+S). Expressions of the pro-inflammatory factors (tumor necrosis factor-α and interleukin-6 [IL-6]) and chemokines (macrophage chemoattractant protein-1, regulated upon activation normal T cell expressed and secreted factor, and C-C motif chemokine 11) were dramatically decreased, whereas anti-inflammatory factors (IL-4, IL-10, and IL-13) were significantly increased in the Burn+BP group. Kidney function related markers blood urea nitrogen and serum creatinine, and the liver function related markers alanine transaminase, aspartate aminotransferase, alkaline phosphatase, and lactate dehydrogenase were remarkably reduced, whereas albumin levels were elevated in the Burn+BP group as compared to levels obtained in the Burn+S group. Furthermore, inflammatory cells infiltration of the kidney and liver was also attenuated after burn injury administered with blended protein supplementation. CONCLUSIONS: In summary, nutritional support with blended proteins dramatically attenuates the burn-induced inflammatory reaction and protects organ functions. We believe this is a new insight into a potential therapeutic strategy for nutritional support of burn patients.
Huakai Wang;Yanan Wang;Yu Zhang;Juntao Li;Yihai Mi;Yongqiang Xue;Jiaan Li;Yongxi Ma
Animal Bioscience
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v.36
no.5
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pp.761-767
/
2023
Objective: The objective of this study was to determine whether dietary supplementation with a functional fatty acid blend (FA) that contains 31.4% butyric acid and 4.99% medium-chain FA improve growth performance, antioxidant capacity, immunity status, and anti-inflammatory ability in weaned piglets. Methods: One hundred and forty-four healthy piglets (Duroc×Landrace×Yorkshire) with an average body weight (BW) of 7.98±3.43 kg were randomly divided into three groups with six replicate pens and eight piglets per pen: Normal control (NC): a corn-soybean basal diet; FA1: a basal diet supplemented with 1,000 mg/kg of a functional FA; FA2: a basal diet supplemented with 2,000 mg/kg of a functional FA. The experiment lasted for 28 d. On d 14 and 28, one piglet in each pen from NC and FA2 groups was randomly selected for antioxidative index and immunoglobulins. On d 28, one piglet in each pen from NC and FA2 groups was randomly selected for intestinal morphology and inflammatory factor. Results: We observed that FA supplementation linearly increased (p<0.05) average daily gain and the final BW. There was higher (p<0.05) catalase on d 14, and immunoglobulin (Ig) A and IgM on d 28 in piglets supplemented with FA2 than in the NC group. Moreover, dietary FA2 reduced (p<0.05) crypt depth of ileum in piglets. The concentrations of tumor necrosis factor-α, interleukin (IL)-1β, IL-8, and IL-10 in jejunum were lower (p<0.05) in the FA2 group compared with the NC group. Conclusion: Therefore, the overall results suggests that the FA may help to improve gut health, antioxidant status, and immune parameters resulting in the improvement of growth performance.
Yanan Wang;Juntao Li;Huakai Wang;Yihai Mi;Yongqiang Xue;Jiaan Li;Yongxi Ma
Animal Bioscience
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v.36
no.5
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pp.753-760
/
2023
Objective: This study aimed to investigate the effects of essential oil coated with glycerol monolaurate (GML) on the growth performance, intestinal morphology, and serum profiles of weaned piglets. Methods: A total of 144 weaned piglets (Duroc×[Landrace×Yorkshire], average weight 8.07±3.33 kg) were randomly assigned to three groups with six replicate pens and eight piglets per pen: i) CON: a corn-soybean basal diet; ii) LEG: with 1,000 mg/kg essential oil coated with GML; and iii) HEG: with 2,000 mg/kg essential oil coated with GML. Results: Results showed that average daily gain was increased (p<0.05) linearly by essential oil coated with GML supplementation on day 14 to 28 and day 0 to 28 compared with the CON group. Dietary supplementation with HEG increased (p<0.05) total antioxidant capacity and catalase activity on day 14, and immunoglobulin A (IgA) and IgM concentration on day 28 and tended to increase IgG on day 28. In addition, the crypt depth in the jejunum was reduced (p<0.05), and villus height and villus height/crypt depth in the ileum were increased (p<0.05) in the HEG group compared with the CON group. Moreover, lower (p<0.05) concentrations of tumor necrosis factor-α, interferon-γ, interleukin-1β (IL-1β), IL-8, and IL-10 were observed in the jejunum of piglets supplemented with HEG compared with the CON group. In addition, dietary HEG tended to decrease IL-6 level in the jejunum of piglets compared with the CON group. Conclusion: Dietary essential oil coated with GML can improve growth performance of weaned piglets. Moreover, supplementing 2,000 mg/kg essential oil coated with GML was demonstrated to improve antioxidant ability, and intestinal morphology, and reduce jejunal inflammatory factor levels.
Im, Eun Ju;Lee, Ki-Ja;Cho, Gil-Jae;Kim, Hyun-Kyoung;Kim, Suk;Rhee, Man Hee
Journal of agriculture & life science
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v.50
no.2
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pp.139-150
/
2016
Few studies have been reported that horse-bone extract(HBE) can prevent and treatment of bone diseases. However, HBE' therapeutic activities are still not fully understood. This study determined whether HBE up-regulates hemeoxygenase 1(HO-1) and this mediates its anti-inflammatory effect in murine macrophages.Nitric oxide(NO) assay, MTT assay and DPPH assay were performed. In addition, Western blotting and real time PCR were used to determine protein expression, and gene expression, respectively. HBE significantly inhibited NO production without observable cytotoxicity. In addition, HBE attenuated inducible nitric oxide synthase (iNOS), cyclooxygenase-2(COX-2) and phospho (p)-ERK protein expressions in LPS(0.1㎍/ml) stimulated RAW264.7 cells. On the other hand, HBE alone up-regulated HO-1 and Nrf-2 expressions, which mediated HBE's anti-inflammatory effect in RAW264.7 cells. Finally, HBE up-regulated HO-1 and impaired ERK1/2 signaling pathways, and thus it may provide protection against cellular oxidation and inflammation.
Hui Tang;Hanmei Li;Dan Li;Jing Peng;Xian Zhang;Weitao Yang
Journal of Microbiology and Biotechnology
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v.33
no.9
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pp.1213-1227
/
2023
Fetal growth restriction (FGR) is a prevalent obstetric condition. This study aimed to investigate the role of Toll-like receptor 9 (TLR9) in regulating the inflammatory response and gut microbiota structure in FGR. An FGR animal model was established in rats, and ODN1668 and hydroxychloroquine (HCQ) were administered. Changes in gut microbiota structure were assessed using 16S rRNA sequencing, and fecal microbiota transplantation (FMT) was conducted. HTR-8/Svneo cells were treated with ODN1668 and HCQ to evaluate cell growth. Histopathological analysis was performed, and relative factor levels were measured. The results showed that FGR rats exhibited elevated levels of TLR9 and myeloid differentiating primary response gene 88 (MyD88). In vitro experiments demonstrated that TLR9 inhibited trophoblast cell proliferation and invasion. TLR9 upregulated lipopolysaccharide (LPS), LPS-binding protein (LBP), interleukin (IL)-1β and tumor necrosis factor (TNF)-α while downregulating IL-10. TLR9 activated the TARF3-TBK1-IRF3 signaling pathway. In vivo experiments showed HCQ reduced inflammation in FGR rats, and the relative cytokine expression followed a similar trend to that observed in vitro. TLR9 stimulated neutrophil activation. HCQ in FGR rats resulted in changes in the abundance of Eubacterium_coprostanoligenes_group at the family level and the abundance of Eubacterium_coprostanoligenes_group and Bacteroides at the genus level. TLR9 and associated inflammatory factors were correlated with Bacteroides, Prevotella, Streptococcus, and Prevotellaceae_Ga6A1_group. FMT from FGR rats interfered with the therapeutic effects of HCQ. In conclusion, our findings suggest that TLR9 regulates the inflammatory response and gut microbiota structure in FGR, providing new insights into the pathogenesis of FGR and suggesting potential therapeutic interventions.
BACKGROUND/OBJECTIVES: Oxidative stress is a fundamental neurodegenerative disease trigger that damages and decimates nerve cells. Neurodegenerative diseases are chronic central nervous system disorders that progress and result from neuronal degradation and loss. Recent studies have extensively focused on neurodegenerative disease treatment and prevention using dietary compounds. Heseperetin is an aglycone hesperidin form with various physiological activities, such as anti-inflammation, antioxidant, and antitumor. However, few studies have considered hesperetin's neuroprotective effects and mechanisms; thus, our study investigated this in hydrogen peroxide (H2O2)-treated SH-SY5Y cells. MATERIALS/METHODS: SH-SY5Y cells were treated with H2O2 (400 µM) in hesperetin absence or presence (10-40 µM) for 24 h. Three-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide assays detected cell viability, and 4',6-diamidino-2-phenylindole staining allowed us to observe nuclear morphology changes such as chromatin condensation and apoptotic nuclei. Reactive oxygen species (ROS) detection assays measured intracellular ROS production; Griess reaction assays assessed nitric oxide (NO) production. Western blotting and quantitative polymerase chain reactions quantified corresponding mRNA and proteins. RESULTS: Subsequent experiments utilized various non-toxic hesperetin concentrations, establishing that hesperetin notably decreased intracellular ROS and NO production in H2O2-treated SH-SY5Y cells (P < 0.05). Furthermore, hesperetin inhibited H2O2-induced inflammation-related gene expression, including interluekin-6, tumor necrosis factor-α, and nuclear factor kappa B (NF-κB) p65 activation. In addition, hesperetin inhibited NF-κB translocation into H2O2-treated SH-SY5Y cell nuclei and suppressed mitogen-activated protein kinase protein expression, an essential apoptotic cell death regulator. Various apoptosis hallmarks, including shrinkage and nuclear condensation in H2O2-treated cells, were suppressed dose-dependently. Additionally, hesperetin treatment down-regulated Bax/Bcl-2 expression ratios and activated AMP-activated protein kinase-mammalian target of rapamycin autophagy pathways. CONCLUSION: These results substantiate that hesperetin activates autophagy and inhibits apoptosis and inflammation. Hesperetin is a potentially potent dietary agent that reduces neurodegenerative disease onset, progression, and prevention.
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