antioxidant levels

  • 文章类型: Journal Article
    本研究考察了三七皂苷R1(NGR1)的影响,一种来自三七的化合物,猪卵母细胞的成熟和胚胎发育,关注其对抗氧化水平和线粒体功能的影响。这项研究表明,用NGR1补充体外成熟(IVM)培养基可显着增强几种生化参数。这些包括谷胱甘肽(GSH)水平升高,核因子红细胞2相关因子2(NRF2)和过氧化氢酶(CAT)和GPX的mRNA表达。同时,我们观察到活性氧(ROS)水平的降低和JC-1免疫荧光的增加,线粒体分布,过氧化物酶体增殖物激活受体-γ共激活因子-1α(PGC1α)和核NRF2mRNA水平。此外,ATP产生和脂滴(LD)免疫荧光增加。这些生化改善与增强的胚胎结局相关,包括更高的囊胚率,细胞总数增加,增强的增殖能力和升高的八聚体结合转录因子4(Oct4)和超氧化物歧化酶2(Sod2)基因表达。此外,NGR1补充导致细胞凋亡减少,在体外成熟的猪卵母细胞中,caspase3(Cas3)和BCL2相关X(Bax)mRNA水平降低,葡萄糖调节蛋白78kD(GRP78)免疫荧光降低。这些发现表明NGR1通过提供抗氧化剂水平和线粒体保护在促进猪卵母细胞成熟和随后的胚胎发育中起着至关重要的作用。
    This study examines the impact of Notoginsenoside R1 (NGR1), a compound from Panax notoginseng, on the maturation of porcine oocytes and their embryonic development, focusing on its effects on antioxidant levels and mitochondrial function. This study demonstrates that supplementing in vitro maturation (IVM) medium with NGR1 significantly enhances several biochemical parameters. These include elevated levels of glutathione (GSH), nuclear factor erythrocyte 2-related factor 2 (NRF2) and mRNA expression of catalase (CAT) and GPX. Concurrently, we observed a decrease in reactive oxygen species (ROS) levels and an increase in JC-1 immunofluorescence, mitochondrial distribution, peroxisome proliferator-activated receptor-γ coactivator-1α (PGC1α) and nuclear NRF2 mRNA levels. Additionally, there was an increase in ATP production and lipid droplets (LDs) immunofluorescence. These biochemical improvements correlate with enhanced embryonic outcomes, including a higher blastocyst rate, increased total cell count, enhanced proliferative capacity and elevated octamer-binding transcription factor 4 (Oct4) and superoxide dismutase 2 (Sod2) gene expression. Furthermore, NGR1 supplementation resulted in decreased apoptosis, reduced caspase 3 (Cas3) and BCL2-Associated X (Bax) mRNA levels and decreased glucose-regulated protein 78 kD (GRP78) immunofluorescence in porcine oocytes undergoing in vitro maturation. These findings suggest that NGR1 plays a crucial role in promoting porcine oocyte maturation and subsequent embryonic development by providing antioxidant levels and mitochondrial protection.
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  • 文章类型: Journal Article
    本调查的目的是分析使用新型预混喷雾方法掺入屎肠球菌和嗜热链球菌对以下方面的影响:生长速率,消化酶活性,抗氧化剂水平,肠道微生物组组成,和十二指肠的形态特征,空肠,和肉鸡的回肠。此外,这项研究探索了双菌株益生菌(DSP)在减少肠胃气胀方面的潜在益处,调节粪便微生物种群,改善腹泻症状。将总共360只1日龄的混合性别普利茅斯岩石小鸡(IW:51±33g)随机分为两个治疗组。每个治疗组进一步分为9个重复的笼子,每个笼子里有20只小鸡。对照组(CG)接受了由大豆-玉米混合物组成的基础饮食,而实验组提供DSP(CON+0.5%益生菌)。结果表明,对照组和处理组在第4周末肉鸡体重的增加分别为1.576和1.847kg,分别。在30天的试用期内,DSP饮食显着提高了特定生长率(SGR),生存率(SR),增加体重(BWG),同时降低饲料转化率(FCR)(P<0.05)。DSP饮食还增强了酶消化(蛋白酶,淀粉酶,脂肪酶,和胰蛋白酶)和抗氧化潜力(SOD,MDA,和过氧化氢酶)与CG中的肉鸡相比。结果表明,联合治疗持续4周后,十二指肠和空肠的组织形态显着增强。DSP处理显着增加了十二指肠和空肠中的微绒毛高度,但在回肠中没有显着影响。在家禽饲料中掺入0.5%的DSP提高了反刍动物科和粪杆菌素的相对丰度,与对照饮食相比,导致更好地管理腹泻和减少大肠杆菌的存在。此外,包括基础饮食中的益生菌减少H2S,CO2、NH3和CH4水平。总的来说,这项研究表明,使用这些菌株的新喷雾干燥方法有可能在家禽饲料加工中补充益生菌,在肉鸡日粮中加入DSP具有有益效果。
    The goal of this inquiry was to analyze the impact of incorporating Enterococcus faecium and Streptococcus thermophilus using a novel premix-spray method on the following aspects: growth rate, digestive enzyme activity, antioxidant levels, gut microbiome composition, and the morphological characteristics of the duodenum, jejunum, and ileum in broiler chickens. Furthermore, this study explored the potential benefits of duo strains of probiotics (DSP) in reducing flatulence, regulating stool microbial population, and improving diarrhea symptoms. A total of 360 one-day-old mixed-sex Plymouth Rock chicks (IW: 51 ± 33 g) were randomly divided into two treatment groups. Each treatment group was further divided into 9 replicated cages, with 20 chicks housed in each cage. The control group (CG) received a basal diet composed of a soy-corn mixture, whereas the experimental group was provided with DSP (CON + 0.5 % probiotic). The results showed that the increase in the body weight of broilers at the end of the fourth week in the control group and the treatment group was 1.576 versus 1.847 kg, respectively. Throughout the 30-day trial period, the DSP diet significantly improved the specific growth rate (SGR), survival rate (SR), and body weight gain (BWG) while decreasing the feed conversion ratio (FCR) (P < 0.05). The DSP diet also enhanced the Enzymatic digestion (protease, amylase, lipase, and trypsin) and antioxidant potential (SOD, MDA, and catalase) of the broilers compared to those in the CG. The results revealed significant enhancements in the tissue morphology of the duodenum and jejunum following the combined treatment for a duration of 4 weeks. The DSP treatments significantly increased microvillus height in the duodenum and jejunum but had no notable effects in the ileum. Incorporating 0.5 % DSP in poultry feed improved the relative abundance of Ruminococcaceae and Faecalibacteriumin, leading to better management of diarrhea and reduced presence of E. coli compared to the control diet. Additionally, including probiotics in the basal diet reduced H2S, CO2, NH3, and CH4 levels. Overall, the study suggests that the new spray-drying approach with these strains has potential for supplementing probiotics in poultry feed processing, and including DSP in broiler chicken diets has beneficial effects.
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  • 文章类型: Journal Article
    深静脉血栓形成(DVT)是一种静脉血栓栓塞,是临床上复杂的血管疾病。氧化应激在许多心血管疾病的发病机制中起着关键作用。特别是在内皮功能障碍相关综合征中。核因子类红细胞2(Nrf2)转录因子是抗氧化反应的主要调节因子。活性氧(ROS)的水平受Nrf2及其抑制蛋白Kelch样ECH相关蛋白1(Keap1)的调节。然而,据我们所知,DVT综合征中Nrf2/Keap1通路的遗传异常尚未得到彻底研究。本研究的目的是研究DVT中Nrf2/Keap1通路与抗氧化反应之间的关系。通过DNA测序分析和逆转录-定量PCR检测27例DVT患者Nrf2/Keap1通路相关基因的突变和表达水平。分别。多态性表型化v2程序用于鉴定致病性突变。通过测量27例DVT患者的血清样品对2,2\'-叠氮基双(3-乙基苯并噻唑啉-6-磺酸)系统氧化的影响来确定总抗氧化活性水平。共有23个突变,包括七个新的突变,在27例DVT患者中,有24例(89%)在Nrf2/Keap1通路中检测到。DVT患者Keap1mRNA表达水平明显高于Nrf2表达水平(P=0.02)。分子特征和基因表达水平分析表明,Nrf2/Keap1相关突变和总抗氧化剂水平可作为诊断DVT的前体标志物。
    Deep vein thrombosis (DVT) is a type of venous thromboembolism and a clinically complex vascular disease. Oxidative stress serves a key role in the pathogenesis of numerous cardiovascular diseases, particularly in endothelial dysfunction-associated syndromes. Nuclear factor erythroid-2-like 2(Nrf2) transcription factor is the primary regulator of antioxidant responses. The levels of reactive oxygen species (ROS) are regulated by Nrf2 and its suppressor protein Kelch-like ECH-associated protein 1 (Keap1). However, to the best of our knowledge, genetic abnormalites in the Nrf2/Keap1 pathway in DVT syndrome have not been thoroughly investigated. The aim of the present study was to investigate the association between the Nrf2/Keap1 pathway and antioxidant responses in DVT. Mutations and expression levels of genes involved in the Nrf2/Keap1 pathway were measured in 27 patients with DVT via DNA sequencing analysis and reverse transcription-quantitative PCR, respectively. The Polymorphism Phenotyping v2 program was used to identify the pathogenic mutations. Total antioxidant activity levels were determined by measuring the effect of serum samples from 27 patients with DVT on oxidation of the 2,2\'-azino-bis (3-ethylbenz-thiazoline-6-sulfonic acid) system. A total of 23 mutations, including seven novel mutations, were detected in the Nrf2/Keap1 pathway in 24 (89%) of the 27 patients with DVT. Keap1 mRNA expression levels were significantly higher compared with Nrf2 expression levels in patients with DVT (P=0.02). Analysis of molecular characteristics and gene expression levels demonstrated that Nrf2/Keap1-associated mutations and total antioxidant levels can be used as precursor markers in the diagnosis of DVT.
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  • 文章类型: Journal Article
    BACKGROUND: The control of biofilm adherence on tooth surface has always been the keystone of periodontal therapeutic systems. However, prevalence of gingivitis suggest inadequacy of self-performed oral hygiene measures and need for adjunctive aid for mechanical plaque control. Oral rinses containing chlorhexidine, has been widely used however, with certain limitations. Herbal products have been used widely reflecting its action as alternative and complementary remedy. Hence, the purpose of the present study was to evaluate the antimicrobial and antioxidant efficacy of a Guava leaf extract based mouthrinse in patients with chronic generalized gingivitis as an adjunct to oral prophylaxis.
    METHODS: Sixty subjects (n = 20) in compliance with the inclusion criteria were randomly assigned to one of the 3 study groups i.e. Group A- 0.15%Guava mouth rinse, Group B- 0.2% Chlorhexidine (CHX) mouth rinse, Group C- Distilled water (placebo). All the participants received professional oral prophylaxis and were dispensed with experimental mouth rinses and instructed to use for period of 30 days. Clinical parameters such as gingival index, plaque index along with microbial colony forming units using plaque samples and antioxidant levels in saliva were estimated at baseline, 30 and 90 days\' time intervals.
    RESULTS: All 3 groups showed gradual reduction in GI, PI and microbial counts. Considering the mean scores of recorded parameters at the scheduled time intervals, notable changes were observed between chlorhexidine and guava mouth rinse compared to placebo group. Although there was improvement in the antioxidant status in all study participants, yet there was no statistically significant difference observed.
    CONCLUSIONS: Guava mouth rinse can be used as an empirical adjunct to professional oral prophylaxis owing to its multifactorial properties and favourable acceptance. However, long term studies need to be conducted to validate its use for an extended period of time.
    BACKGROUND: The clinical trial has been prospectively registered on 17th February 2017 by the Clinical Trials Registry-India (CTRI/2017/02/007898).
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  • 文章类型: Journal Article
    The present study investigates the effects of the dietary microbial lysozyme (ML) as an immunostimulant, on the growth performance, some immune parameters and digestive enzyme of Pacific white shrimp, Penaeus vannamei. Six hundred shrimps were obtained and randomly allocated into four groups as follows with three replicates. The shrimps were fed diets supplemented with 0 (control), 0.5, 1, and 2 g kg-1 ML for 4 months. The results indicated that dietary supplementation of ML significantly improved final weight, weight gain, average daily weight gain rate (ADG), feed conversion rate (FCR), and feed efficiency rate (FER) compared to the control (P ˂ 0.05). However, weight gain specific growth rate (SGR) and survival rate were not significantly affected by dietary ML (P ˃ 0.05). Dietary ML had a progressive effects on some immune parameters status including total antioxidant capacity (TAOC), superoxide dismutase (SOD), glutathione peroxidase (GPX), lysozyme (LYZ), alkaline phosphatase (ALP), phenoloxidase (PO) and acid phosphatase (ACP) activity as well as differential haemocyte count (DHC) and total haemocyte count (THC), in shrimps treated with the lysozyme than untreated shrimps (P ˂ 0.05). However, feeding with ML had no significant effect on plasma malondialdehyde (MDA) level (P ˃ 0.05). Furthermore, intestinal digestive enzymes (lipase, protease, and amylase) in shrimp fed with dietary ML were significantly (P ˂ 0.05) higher than those fed with non-supplemented control basal diet. Thus, the results indicate that oral administration of ML can be recommended for shrimp feed to improve immune response as well digestive enzymes activity modulation.
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  • 文章类型: Journal Article
    UNASSIGNED: This study aimed to assess the effect of different levels of citrus waste (CW) with or without enzyme cocktail on blood profile of broilers.
    UNASSIGNED: CW was sun-dried and grounded to powder CW. 256-day-old birds were distributed into eight groups; control (C), CW-supplemented diets (2.5% CW, 5.0% CW, and 7.5% CW), enzyme (E) cocktail supplemented diets (CE, 2.5% CWE, 5.0% CWE, and 7.5% CWE). The diets were fed during starter (0-14 days), grower (15-21 days), and finisher (22-42 days) phases. Blood was collected from the wing vein from four birds per treatment. Serum was separated out after centrifugation and stored at -20°C until further analysis. The samples were analyzed for liver function test (glucose, total protein [TP], albumin [ALB], and globulin), lipid profile (cholesterol and triglyceride), kidney function test (alanine aminotransferase, aspartate aminotransferase [AST], blood urea nitrogen [BUN], and creatinine), and antioxidant levels (catalase, superoxide dismutase [SOD], lipid peroxidation [LPx], glutathione peroxidase [GPx], glutathione [GSH], and Vitamins E and C).
    UNASSIGNED: Blood profile data revealed that supplementation of CW showed no effect on TP, ALB, globulin, and BUN levels. Plasma cholesterol, triglyceride, and AST levels decreased linearly with an increase in the levels of CW in the diet. Catalase and SOD activity increased non-significantly with an increase in inclusion level of CW in the diets. LPx, GPx, and GSH activities decreased (p≤0.05) up to 5% CW-fed groups. Vitamin E and C activity were found to be highest (p≤0.05) in birds fed with diet supplemented with 5% CW. GPx and GSH activities and serum Vitamin C levels were observed to be highest (p<0.05) in birds fed CW (at 5%)-based diet supplemented with enzymes.
    UNASSIGNED: The blood profile showed that supplementation of CW up to 5% decreased cholesterol, triglyceride, and AST levels and improved the antioxidant status. Vitamin C levels were observed to be highest (p<0.05) in birds fed CW (at 5%)-based diet supplemented with enzymes.
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  • 文章类型: Journal Article
    The effects of selenium (Se)-biofortified corn on the total Se contents, the antioxidant enzyme levels, and the amino acids composition in Chinese mitten crab (Eriocheir sinensis) during the stage of the fifth shelling to maturity were investigated in the present study. The culture density of crabs was 600 per 667 m², and they were continuously fed 120.4 mg Se from Se-biofortified corn per 667 m² every two days for 90 days. The results showed that the total muscle Se levels in the crabs were significantly increased (p < 0.05). Activities of hemolymph supernatant enzymes including alkaline phosphatase (AKP), lysozyme (LZM), glutathione peroxidase (GPx), and superoxide dismutase (SOD) were also enhanced (p < 0.05). The protein and crude fat levels at maturity were higher than those at the fourth molt. The levels of total essential amino acids (∑EAAs) and total delicious amino acids (∑DAAs) were significantly increased (p < 0.05). We demonstrate that the feeding of Se-biofortified corn could significantly improve total muscle Se concentrations and hemolymph supernatant antioxidant enzyme activities in Chinese mitten crab, and slow down the rapid decline of ∑EAAs and ∑DAAs at maturity, thus improving the nutritional quality of Chinese mitten crab.
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