ethanol

乙醇
  • 文章类型: Journal Article
    肝硬化患者容易发生急性肾损伤(AKI),这导致了糟糕的结果。我们进行了一项研究,以评估肝硬化患者的AKI谱。
    这项研究是在2020年4月至2022年12月在印度三级护理中心收治的连续肝硬化AKI患者中进行的。详细信息,包括历史记录,检查结果,并记录实验室调查的结果。
    本研究共纳入243例患者。大多数(91.3%)的患者是男性。肝硬化最常见的病因是58.4%(n=142)的酒精,其次是10.3%(n=25)的乙型肝炎。54.4%(n=132)的患者存在肾前型AKI,21.8%(n=53)的患者存在肝肾综合征(HRS)。IgA肾病是内源性肾脏疾病无反应者中最常见的(n=6)肾小球病理。大多数患者属于II期(46.9%)和I期AKI(37%),而只有16.1%的人患有III期AKI。AKI的各个阶段与Child-Turcotte-Pugh(CTP)评分和终末期肝病模型(MELD)-Na评分显着相关(P<0.05)。总体住院死亡率为18.5%(n=45)。
    肾功能障碍是肝硬化患者常见的并发症。肾前因素是肝硬化患者AKI的最常见原因。AKI分期与肝脏预后评分显著相关。对治疗无反应的患者应考虑肾活检,指导进一步的管理。
    UNASSIGNED: Patients with cirrhosis are susceptible to development of acute kidney injury (AKI), which leads to poor outcome. We conducted a study to evaluate the spectrum of AKI in patients with cirrhosis.
    UNASSIGNED: This study was conducted in consecutive cirrhotic patients with AKI admitted in a tertiary care center of India from April 2020 to December 2022. Details including history, examination findings, and results of laboratory investigations were recorded.
    UNASSIGNED: A total of 243 patients were enrolled in this study. The majority (91.3%) of the patients were males. The most common etiology of cirrhosis was alcohol in 58.4% (n = 142) followed by hepatitis B in 10.3% (n = 25) of patients. Pre-renal form of AKI was present in 54.4% (n = 132) of patients and hepatorenal syndrome (HRS) in 21.8% (n = 53) of patients. IgA nephropathy was the commonest (n = 6) glomerular pathology in nonresponders with intrinsic renal disease. Majority of the patients belonged to stage II (46.9%) and stage I AKI (37%), while only 16.1% had stage III AKI. Various stages of AKI showed a significant correlation (P < 0.05) with Child-Turcotte-Pugh (CTP) score and Model for End-stage Liver Disease (MELD)-Na score. The overall in-hospital mortality rate was found to be 18.5% (n = 45).
    UNASSIGNED: Renal dysfunction is a frequent complication among cirrhotic patients. Pre-renal factors were the most common cause of AKI in cirrhotics. Stages of AKI showed significant correlation with liver prognostic scores. Renal biopsy should be considered in patients not responding to treatment, to guide further management.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:基于酒精的手擦(ABHR)是手部卫生(HH)的黄金标准,并且是感染预防和控制(IPC)策略的基石。然而,几个因素影响卫生工作者对ABHR的有效使用。这项研究评估了卫生工作者对本地生产的ABHR产品和HH行为的耐受性和可接受性。
    方法:根据WHO的标准化方案进行了一项基于医院的纵向干预研究,以评估ABHR的耐受性和可接受性(方法1)。塞拉利昂4家医院的60名卫生工作者在30天的时间内接受了训练有素的观察员的三次单独访问(第1天、第3-5天和第30天)的观察。感兴趣的结果包括使用主观和客观测量评估的皮肤耐受性和产品可接受性。
    结果:客观和主观评价显示出较强的皮肤耐受性和产品的高可接受性。在所有三次访问中,经过培训的观察者评估的皮肤耐受性评分<2,≥97%的参与者,超过WHO基准评分(BMS=<2in≥75%)。参与者对整体皮肤完整性的自我评估为97%(第2次访问)和98%(第3次访问),得分>4(BMS=>4,≥75%)。主要可接受性标准在第3次就诊时增加到95%(颜色)和88%(气味)(BMS=>4,≥50%)。尽管可接受性很高,在第2次和第3次访问期间,产品的干燥效果分别为52%和58%(BMS=>4in≥75%)。有积极的HH行为(n=53,88%),其中一半以上(n=38,63%)几乎在每个HH时刻都表现出HH。平均ABHR明显较高(76.1ml,标准差±35),特别是在护士(平均=80.1毫升)和医生(平均=74.0毫升)。
    结论:世界卫生组织制定的,本地生产的ABHR耐受性良好,并被卫生工作者接受.这些发现支持持续利用基于证据的,在资源有限的环境中进行具有成本效益的手卫生干预。高手擦消耗和频繁的HH实践是明显的HH行为。建议进一步研究以优化皮肤干燥的产品配方,并研究ABHR消耗与手部卫生依从性之间的关联。
    BACKGROUND: Alcohol-based handrub (ABHR) is the gold standard for hand hygiene (HH) and is a cornerstone of infection prevention and control (IPC) strategies. However, several factors influence the efficient use of ABHR by health workers. This study evaluated the tolerability and acceptability of a locally produced ABHR product and HH behaviour among health workers.
    METHODS: A longitudinal hospital-based intervention study was conducted in accordance with the WHO\'s standardized protocol for evaluating ABHR tolerability and acceptability (Method 1). Sixty health workers across 4 hospitals in Sierra Leone were observed over a 30-day period at three separate visits (days 1, 3-5, and 30) by trained observers. The outcomes of interest included skin tolerability and product acceptabilityevaluated using subjective and objective measures.
    RESULTS: Objective and subjective evaluations demonstrated strong skin tolerability and high acceptability with the product. At all three visits, the skin tolerability score assessed by trained observers was < 2 in ≥ 97% of participants, exceeding the WHO benchmark score (BMS = < 2 in ≥ 75%). Participants\' self-evaluations of overall skin integrity were 97% (visit 2) and 98% (visit 3) for scores > 4 (BMS = > 4 in ≥ 75%). The primary acceptability criteria increased up to 95% (colour) and 88% (smell) at visit 3 (BMS = > 4 in ≥ 50%). Despite high acceptability, the product\'s drying effect remained low at 52% and 58% during visits 2 and 3, respectively (BMS = > 4 in ≥ 75%). There were positive HH behaviours (n = 53, 88%), with more than half (n = 38, 63%) of them exhibiting HH at almost every HH moment. The mean ABHR was notably high (76.1 ml, SD ± 35), especially among nurses (mean = 80.1 ml) and doctors (mean = 74.0 ml).
    CONCLUSIONS: The WHO-formulated, locally produced ABHR was well tolerated and accepted by health workers. These findings support the continuous utilization of evidence-based, cost-effective hand hygiene interventions in resource-limited settings. High handrub consumption and frequent HH practices were noticeable HH behaviours. Further research is recommended to optimize product formulations for skin dryness and investigate the association between ABHR consumption and hand hygiene compliance.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    已知同时滥用酒精-可卡因会导致肝脏中更强,更不可预测的细胞损伤,心,和大脑。然而,可卡因和酒精在肝损伤中的作用机制仍不清楚.这些发现揭示了可卡因诱导的小鼠和小鼠的肝损伤和炎症。值得注意的是,与单独治疗相比,在小鼠中同时服用可卡因和乙醇会导致更严重的肝损伤。代谢组学分析证实,马尿酸(HA)是可卡因消耗后血清中最丰富的代谢物,并且在原代猴肝细胞中形成。HA,可卡因的代谢产物,增加线粒体DNA泄漏,随后通过Kupffer细胞(KCs)中的STING信号增加促炎因子的产生。此外,可卡因处理的KC通过酒精诱导的TNFR1诱导的肝细胞坏死的条件培养基。最后,体内STING信号传导的中断改善了酒精和可卡因诱导的肝损伤和炎症的共同给药。这些发现假设HA-STING-TNFR1轴的干预作为治疗酒精和可卡因诱导的过度肝损伤的新策略。
    The simultaneous abuse of alcohol-cocaine is known to cause stronger and more unpredictable cellular damage in the liver, heart, and brain. However, the mechanistic crosstalk between cocaine and alcohol in liver injury remains unclear. The findings revealed cocaine-induced liver injury and inflammation in both marmosets and mice. Of note, co-administration of cocaine and ethanol in mice causes more severe liver damage than individual treatment. The metabolomic analysis confirmed that hippuric acid (HA) is the most abundant metabolite in marmoset serum after cocaine consumption and that is formed in primary marmoset hepatocytes. HA, a metabolite of cocaine, increases mitochondrial DNA leakage and subsequently increases the production of proinflammatory factors via STING signaling in Kupffer cells (KCs). In addition, conditioned media of cocaine-treated KC induced hepatocellular necrosis via alcohol-induced TNFR1. Finally, disruption of STING signaling in vivo ameliorated co-administration of alcohol- and cocaine-induced liver damage and inflammation. These findings postulate intervention of HA-STING-TNFR1 axis as a novel strategy for treatment of alcohol- and cocaine-induced excessive liver damage.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    蜂胶因其健康益处而被广泛用作辅助食品。这项研究的目的是确定商业蜂胶提取物对肝脏和肾脏的影响。蜂胶提取物(250mg/kgbw/天)在乙醇溶剂中口服给予成年雄性Wistar白化病大鼠,丙二醇,水,橄榄油。血样中的肝酶水平进行生化测定,并对肝脏进行组织病理学检查。在施用30天和90天后,蜂胶-乙醇提取物组的两个肾脏组织的损伤率与其他组相比显着增加(p<0.05)。根据结果,乙醇,用作蜂胶产品中的常用溶剂,长期使用可能会对肝脏产生不利影响。数据表明,蜂胶-橄榄油提取物由于其有效和可靠的特性,可能是必不可少的替代品。
    Propolis is widely used as a supplementary food product for its health benefits. The aim of this study was to determine the effects of commercial propolis extracts on the liver and kidney. Propolis extracts (250 mg/kgbw/day) were administered orally to adult male Wistar albino rats in solvents of ethanol, propylene glycol, water, and olive oil. Liver enzyme levels were determined biochemically in blood samples, and histopathological examinations were performed on the liver. Damage rate in both kidney tissue in the propolis-ethanol extract group increased significantly compared with the other groups after 30 and 90 days of application (p < .05). According to the results, ethanol, used as a common solvent in propolis products, may adversely affect the liver in long-term use. The data indicate that propolis-olive oil extract may be an essential alternative due to its effective and reliable properties.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    目标:暴饮暴食(即消耗足够的酒精以达到80mg/dL的血液乙醇浓度,2小时内大约4-5杯),特别是在青春期早期,可以促进饮酒和酒精相关问题的逐渐增加,这些问题发展成为慢性复发性疾病的强迫性使用,酒精使用障碍(AUD)。在过去的十年里,神经免疫信号已经被发现有助于酒精诱导的饮酒变化,心情,和神经变性。这篇综述提出了一个机制假设,支持高迁移率族盒蛋白1(HMGB1)和Toll样受体(TLR)信号作为酒精诱导的神经免疫信号跨神经胶质和神经元的关键元件。改变基因转录和突触,改变有助于AUD发展的神经元网络。这一假设可能有助于指导进一步的预防和治疗研究。
    方法:作者使用搜索词“HMGB1蛋白,\"\"酒精,“和”大脑“跨越PubMed,Scopus,和Embase查找1991年至2023年之间发表的文章。
    数据库搜索在PubMed中找到54个引用,47在Scopus,105在Embase共包括约100篇文章。
    结论:在大脑中,免疫信号分子在正常发育中发挥作用,不同于它们在炎症和免疫反应中的功能,尽管细胞受体和信号是共有的。在成年人中,促炎信号已经出现,有助于大脑适应压力,抑郁症,AUD,和神经退行性疾病。HMGB1,一种从活化细胞释放的细胞因子样信号蛋白,包括神经元,假设通过TLRs激活促炎信号,有助于适应暴饮暴食和慢性重度饮酒。单独的HMGB1和与其他分子的异聚体激活TLR和其他免疫受体,其在神经元和神经胶质中传播信号。HMGB1的血液和脑水平均随着乙醇暴露而增加。在老鼠身上,青少年间歇性乙醇(AIE)暴饮暴食模型持续增加大脑HMGB1及其受体;改变小胶质细胞,前脑胆碱能神经元,和神经元网络;增加饮酒和焦虑,同时破坏认知。人类死后AUD脑的研究发现HMGB1和TLR的水平升高。这些信号减少胆碱能神经元,而小胶质细胞,大脑的免疫细胞,被暴饮暴食激活。小胶质细胞通过补体蛋白调节突触,补体蛋白可以改变受AIE影响的网络,增加饮酒,为AUD带来风险。抗炎药,锻炼,胆碱酯酶抑制剂,和组蛋白去乙酰化酶表观遗传抑制剂可预防和逆转AIE诱导的病理。Further,HMGB1拮抗剂和其他抗炎治疗可能为酒精滥用和AUD提供新疗法。总的来说,这些发现表明,恢复先天免疫信号平衡是酒精相关病理恢复的关键.
    OBJECTIVE: Binge drinking (i.e., consuming enough alcohol to achieve a blood ethanol concentration of 80 mg/dL, approximately 4-5 drinks within 2 hours), particularly in early adolescence, can promote progressive increases in alcohol drinking and alcohol-related problems that develop into compulsive use in the chronic relapsing disease, alcohol use disorder (AUD). Over the past decade, neuroimmune signaling has been discovered to contribute to alcohol-induced changes in drinking, mood, and neurodegeneration. This review presents a mechanistic hypothesis supporting high mobility group box protein 1 (HMGB1) and Toll-like receptor (TLR) signaling as key elements of alcohol-induced neuroimmune signaling across glia and neurons, which shifts gene transcription and synapses, altering neuronal networks that contribute to the development of AUD. This hypothesis may help guide further research on prevention and treatment.
    METHODS: The authors used the search terms \"HMGB1 protein,\" \"alcohol,\" and \"brain\" across PubMed, Scopus, and Embase to find articles published between 1991 and 2023.
    UNASSIGNED: The database search found 54 references in PubMed, 47 in Scopus, and 105 in Embase. A total of about 100 articles were included.
    CONCLUSIONS: In the brain, immune signaling molecules play a role in normal development that differs from their functions in inflammation and the immune response, although cellular receptors and signaling are shared. In adults, pro-inflammatory signals have emerged as contributing to brain adaptation in stress, depression, AUD, and neurodegenerative diseases. HMGB1, a cytokine-like signaling protein released from activated cells, including neurons, is hypothesized to activate pro-inflammatory signals through TLRs that contribute to adaptations to binge and chronic heavy drinking. HMGB1 alone and in heteromers with other molecules activates TLRs and other immune receptors that spread signaling across neurons and glia. Both blood and brain levels of HMGB1 increase with ethanol exposure. In rats, an adolescent intermittent ethanol (AIE) binge drinking model persistently increases brain HMGB1 and its receptors; alters microglia, forebrain cholinergic neurons, and neuronal networks; and increases alcohol drinking and anxiety while disrupting cognition. Studies of human postmortem AUD brain have found elevated levels of HMGB1 and TLRs. These signals reduce cholinergic neurons, whereas microglia, the brain\'s immune cells, are activated by binge drinking. Microglia regulate synapses through complement proteins that can change networks affected by AIE that increase drinking, contributing to risks for AUD. Anti-inflammatory drugs, exercise, cholinesterase inhibitors, and histone deacetylase epigenetic inhibitors prevent and reverse the AIE-induced pathology. Further, HMGB1 antagonists and other anti-inflammatory treatments may provide new therapies for alcohol misuse and AUD. Collectively, these findings suggest that restoring the innate immune signaling balance is central to recovering from alcohol-related pathology.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    长期和持续饮酒会增加认知能力下降的风险,并可能导致与酒精有关的痴呆。我们调查了HeracleummoellendoriffiiHance根提取物(HME)治疗酒精相关认知障碍的潜力。行为测试评估HME对认知功能和抑郁的影响。通过Western印迹和H&E染色评价海马和肝组织的变化。与媒介物治疗组相比,用HME200mg/kg治疗的组显示Y迷宫的自发交替显着增加,而在强迫游泳测试(FST)中的不动性降低。这些结果表明,HME可以恢复记忆缺陷并逆转由长期饮酒引起的抑郁症状。HME治疗组也上调脑源性神经营养因子(BDNF),磷酸化细胞外信号调节激酶1/2(ERK1/2),和海马中磷酸化的cAMP反应元件结合蛋白(CREB)。此外,它减少了肝脏中的脂质空泡化,并增加了醛脱氢酶1(ADH1)的表达。HME的管理改善了认知障碍和逆转抑郁症状由于饮酒,恢复海马的神经可塑性和肝脏的酒精代谢。这些发现表明,HME是治疗酒精相关脑部疾病的一种有前途的治疗方法。应进一步研究HME及其活性成分的治疗作用的分子机制。
    Chronic and continuous alcohol consumption increases the risk of cognitive decline and may lead to alcohol-related dementia. We investigated the potential of Heracleum moellendorffii Hance root extract (HME) for treating alcohol-related cognitive impairment. Behavioral tests evaluated the effects of HME on cognitive function and depression. Changes in hippocampus and liver tissues were evaluated by Western blotting and H&E staining. The group treated with HME 200 mg/kg showed a significant increase in spontaneous alternation in Y-maze and a decrease in immobility in a forced swimming test (FST) compared to the vehicle-treated group. These results suggest that HME can restore memory deficits and reverse depressive symptoms caused by chronic alcohol consumption. The HME-treated group also upregulated brain-derived neurotrophic factor (BDNF), phosphorylated extracellular signal-regulated kinase 1/2 (ERK1/2), and phosphorylated cAMP response element-binding protein (CREB) in the hippocampus. Additionally, it reduced lipid vacuolation in the liver and increased the expression of aldehyde dehydrogenase 1 (ADH1). The administration of HME improves cognitive impairment and reverses depressive symptoms due to alcohol consumption, restoring neural plasticity in the hippocampus and alcohol metabolism in the liver. These findings suggest that HME is a promising treatment for alcohol-related brain disorders. Molecular mechanisms underlying the therapeutic effects of HME and its active ingredients should be investigated further.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    酒精性肝病(ALD)是肝脏炎症的一种形式。ALD是由肠道渗漏介导的。这项研究评估了过表达干扰素-β(ASC-IFN-β)的ASC对酗酒诱导的肝损伤和肠通透性的抗炎作用。体外,用携带人IFN-β基因的非病毒载体转染ASCs,促进肝细胞生长因子(HGF)在细胞中的分泌。为了评估ASC-IFN-β的潜在作用,C57BL/6小鼠用三个口服剂量的暴饮暴食酒精治疗,并腹膜内注射ASC-IFN-β。与施用对照ASC的小鼠相比,用酗酒处理并施用ASC-IFN-β的小鼠显示出减少的肝损伤和炎症。来自施用ASC-IFN-β的乙醇处理的小鼠的肠组织的分析也表明炎症减少。此外,粪便白蛋白,血液内毒素,细菌菌落水平降低,表明暴饮暴食酒精小鼠的肠道渗漏较少。用HGF治疗,但不是IFN-β或TRAIL,减轻了乙醇诱导的Caco-2细胞中细胞死亡和通透性的下调。这些结果证明,用非病毒载体转染以诱导IFN-β过表达的ASC具有针对暴饮暴食酒精介导的肝损伤和经由HGF的肠渗漏的保护作用。
    Alcoholic liver disease (ALD) is a form of hepatic inflammation. ALD is mediated by gut leakiness. This study evaluates the anti-inflammatory effects of ASCs overexpressing interferon-beta (ASC-IFN-β) on binge alcohol-induced liver injury and intestinal permeability. In vitro, ASCs were transfected with a non-viral vector carrying the human IFN-β gene, which promoted hepatocyte growth factor (HGF) secretion in the cells. To assess the potential effects of ASC-IFN-β, C57BL/6 mice were treated with three oral doses of binge alcohol and were administered intraperitoneal injections of ASC-IFN-β. Mice treated with binge alcohol and administered ASC-IFN-β showed reduced liver injury and inflammation compared to those administered a control ASC. Analysis of intestinal tissue from ethanol-treated mice administered ASC-IFN-β also indicated decreased inflammation. Additionally, fecal albumin, blood endotoxin, and bacterial colony levels were reduced, indicating less gut leakiness in the binge alcohol-exposed mice. Treatment with HGF, but not IFN-β or TRAIL, mitigated the ethanol-induced down-regulation of cell death and permeability in Caco-2 cells. These results demonstrate that ASCs transfected with a non-viral vector to induce IFN-β overexpression have protective effects against binge alcohol-mediated liver injury and gut leakiness via HGF.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    了解铁在乙醇衍生的肝应激中的作用可能有助于阐明旨在减少慢性饮酒对肝损伤的饮食或临床干预措施的功效。我们假设正常水平的铁与乙醇引起的肝损伤有关,减少饮食中铁的摄入量会降低乙醇引起的损伤。我们使用双食小鼠模型,利用基础Lieber-DeCarli液体饮食22周来检验这一假设。在我们的老鼠模型中,慢性乙醇暴露导致轻度肝应激可能是早期酒精性肝病的特征,被视为肝脏与体重比的增加。饮食铁限制导致非血红素铁和铁蛋白(FeRL)表达略有下降,而增加了转铁蛋白受体1(TfR1)的表达,而不改变铁转运蛋白1(FPN1)的表达。在正常饮食铁条件下,与乙醇喂养的小鼠相比,它还将蛋白质赖氨酸乙酰化提高到了更高的水平。有趣的是,铁限制导致烟酰胺腺嘌呤二核苷酸(NAD)和NADH水平的额外降低。与这一观察一致,主要的线粒体NAD+依赖性脱乙酰酶,NAD依赖性去乙酰化酶sirtuin-3(SIRT3),在正常和低铁条件下,乙醇喂养小鼠的表达显着降低,导致蛋白质赖氨酸乙酰化增加。此外,超氧化物歧化酶1和2水平(SOD1和SOD2)和氧化磷酸化(OXPHOS)复合物活性的检测使我们能够评估正常和低铁条件下乙醇消耗调节的抗氧化剂和能量代谢的变化。我们观察到乙醇喂养的小鼠具有与能量和抗氧化剂代谢降低相关的轻度肝损伤。另一方面,铁限制可能会进一步加剧乙醇的某些活动,如增加蛋白质赖氨酸乙酰化和减少抗氧化剂代谢。这种代谢变化可能证明是饮食减少铁摄入量作为慢性饮酒预防措施的有效性的障碍。
    Understanding the role of iron in ethanol-derived hepatic stress could help elucidate the efficacy of dietary or clinical interventions designed to minimize liver damage from chronic alcohol consumption. We hypothesized that normal levels of iron are involved in ethanol-derived liver damage and reduced dietary iron intake would lower the damage caused by ethanol. We used a pair-fed mouse model utilizing basal Lieber-DeCarli liquid diets for 22 weeks to test this hypothesis. In our mouse model, chronic ethanol exposure led to mild hepatic stress possibly characteristic of early-stage alcoholic liver disease, seen as increases in liver-to-body weight ratios. Dietary iron restriction caused a slight decrease in non-heme iron and ferritin (FeRL) expression while it increased transferrin receptor 1 (TfR1) expression without changing ferroportin 1 (FPN1) expression. It also elevated protein lysine acetylation to a more significant level than in ethanol-fed mice under normal dietary iron conditions. Interestingly, iron restriction led to an additional reduction in nicotinamide adenine dinucleotide (NAD+) and NADH levels. Consistent with this observation, the major mitochondrial NAD+-dependent deacetylase, NAD-dependent deacetylase sirtuin-3 (SIRT3), expression was significantly reduced causing increased protein lysine acetylation in ethanol-fed mice at normal and low-iron conditions. In addition, the detection of superoxide dismutase 1 and 2 levels (SOD1 and SOD2) and oxidative phosphorylation (OXPHOS) complex activities allowed us to evaluate the changes in antioxidant and energy metabolism regulated by ethanol consumption at normal and low-iron conditions. We observed that the ethanol-fed mice had mild liver damage associated with reduced energy and antioxidant metabolism. On the other hand, iron restriction may exacerbate certain activities of ethanol further, such as increased protein lysine acetylation and reduced antioxidant metabolism. This metabolic change may prove a barrier to the effectiveness of dietary reduction of iron intake as a preventative measure in chronic alcohol consumption.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    乙醇传感器已在各个行业得到广泛应用,包括化学品,环境,交通运输,和医疗保健部门。随着对增强性能和降低能耗的需求不断增加,越来越需要开发新的乙醇传感器。微机电系统(MEMS)器件由于其紧凑的尺寸,在气体传感器应用中具有广阔的前景。低功率要求,和无缝集成能力。在这项研究中,通过球磨合成了具有不同摩尔比的SnO2和TiO2的SnO2-TiO2纳米复合材料,然后将其印刷在MEMS芯片上,以使用电流体力学(EHD)印刷进行乙醇传感。研究表明,两种金属氧化物分散均匀,导致形成良好的气敏薄膜。SnO2-TiO2复合材料在摩尔比为1:1时表现出最佳性能,在288°C时的响应值为25.6至50ppm乙醇。这个值是单个SnO2和TiO2气体传感器的7.2倍和1.8倍,分别。增强的气体敏感性可归因于增加的表面活性氧和由复合材料的化学和电子效应产生的优化的材料电阻。
    Ethanol sensors have found extensive applications across various industries, including the chemical, environmental, transportation, and healthcare sectors. With increasing demands for enhanced performance and reduced energy consumption, there is a growing need for developing new ethanol sensors. Micro-electromechanical system (MEMS) devices offer promising prospects in gas sensor applications due to their compact size, low power requirements, and seamless integration capabilities. In this study, SnO2-TiO2 nanocomposites with varying molar ratios of SnO2 and TiO2 were synthesized via ball milling and then printed on MEMS chips for ethanol sensing using electrohydrodynamic (EHD) printing. The study indicates that the two metal oxides dispersed evenly, resulting in a well-formed gas-sensitive film. The SnO2-TiO2 composite exhibits the best performance at a molar ratio of 1:1, with a response value of 25.6 to 50 ppm ethanol at 288 °C. This value is 7.2 times and 1.8 times higher than that of single SnO2 and TiO2 gas sensors, respectively. The enhanced gas sensitivity can be attributed to the increased surface reactive oxygen species and optimized material resistance resulting from the chemical and electronic effects of the composite.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    微生物分析是了解奶牛体内细菌群落的关键,但不同的储存条件对这些分析的影响尚不清楚.这项研究试图检查在收集后立即在-80°C下冷冻的影响,在4°C下冷藏三天和七天,并保留无水乙醇对奶牛粪便样本的微生物群多样性。检查16SrRNA基因序列,阿尔法(香农,Pielou均匀度,观察到的特征和信仰PD指数)和β(布雷-柯蒂斯,评估了βw和加权的UniFrac)多样性。使用线性混合模型和PERMANOVA评估了储存条件对这些指标的影响,将农场合并为随机效果。我们的发现表明,7d和E显著改变了香农指数,表明社区组成的变化。与0d相比,发现了3d和7d储存的Pielou均匀度的变化,表明物种均匀度的变化。乙醇保存影响了观察到的特征和FaithPD指数。储存条件显著影响布雷-柯蒂斯,βw,和加权UniFrac指标,表明社区结构的变化。PERMANOVA分析表明,与立即冷冻相比,这些储存条件显着导致微生物群差异。总之,我们的结果表明,虽然冷藏三天的影响很小,七天的冷藏和乙醇保存显著改变了微生物群分析。这些发现强调了微生物群研究中样品储存考虑因素的重要性。
    Microbiota analyses are key to understanding the bacterial communities within dairy cattle, but the impact of different storage conditions on these analyses remains unclear. This study sought to examine the effects of freezing at -80°C immediately after collection, refrigeration at 4°C for three days and seven days and absolute ethanol preservation on the microbiota diversity of pooled fecal samples from dairy cattle. Examining 16S rRNA gene sequences, alpha (Shannon, Pielou evenness, observed features and Faith PD indices) and beta (Bray-Curtis, βw and Weighted UniFrac) diversity were assessed. The effects of storage conditions on these metrics were evaluated using linear mixed models and PERMANOVA, incorporating the farm as a random effect. Our findings reveal that 7d and E significantly altered the Shannon index, suggesting a change in community composition. Changes in Pielou evenness for 3d and 7d storage when compared to 0d were found, indicating a shift in species evenness. Ethanol preservation impacted both observed features and Faith PD indices. Storage conditions significantly influenced Bray-Curtis, βw, and Weighted UniFrac metrics, indicating changes in community structure. PERMANOVA analysis showed that these storage conditions significantly contributed to microbiota differences compared to immediate freezing. In conclusion, our results demonstrate that while refrigeration for three days had minimal impact, seven days of refrigeration and ethanol preservation significantly altered microbiota analyses. These findings highlight the importance of sample storage considerations in microbiota research.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

公众号