Cr, Creatinine

Cr,肌酐
  • 文章类型: Case Reports
    NADH脱氢酶5(ND5)是线粒体呼吸链中由复合物I组成的44个亚基之一。因此,线粒体编码ND5(MT-ND5)基因突变导致线粒体氧化磷酸化(OXPHOS)障碍,导致线粒体疾病的发展。具有足细胞充满异常线粒体的局灶节段肾小球硬化(FSGS)是由线粒体疾病引起的。MT-ND5突变也引起FSGS。我们在此报告了一名日本妇女,她在29岁的年度健康检查中被发现患有蛋白尿和肾功能障碍。因为她的蛋白尿和肾功能障碍持续存在,她在33岁时做了肾活检.肾组织学显示FSGS足细胞充满异常线粒体。足细胞也有足过程消失和细胞质空泡化。此外,肾脏病理表现为肾小管上皮细胞颗粒状肿胀(GSECs),年龄不适当地排列和不规则大小的血管平滑肌细胞(AiDIV),和红色足细胞(ReCPos)的酸性染料。使用外周单核细胞和尿液沉淀细胞的遗传分析检测到MT-ND5基因中的m.13513G>A变体。因此,该患者因MT-ND5基因突变被诊断为FSGS.虽然这不是第一个病例报告显示MT-ND5基因突变导致FSGS,这是首次证明足细胞损伤伴随着细胞质中异常线粒体的积累。
    NADH dehydrogenase 5 (ND5) is one of 44 subunits composed of Complex I in mitochondrial respiratory chain. Therefore, a mitochondrially encoded ND5 (MT-ND5) gene mutation causes mitochondrial oxidative phosphorylation (OXPHOS) disorder, resulting in the development of mitochondrial diseases. Focal segmental glomerulosclerosis (FSGS) which had podocytes filled with abnormal mitochondria is induced by mitochondrial diseases. An MT-ND5 mutation also causes FSGS. We herein report a Japanese woman who was found to have proteinuria and renal dysfunction in an annual health check-up at 29 years old. Because her proteinuria and renal dysfunction were persistent, she had a kidney biopsy at 33 years of age. The renal histology showed FSGS with podocytes filled with abnormal mitochondria. The podocytes also had foot process effacement and cytoplasmic vacuolization. In addition, the renal pathological findings showed granular swollen epithelial cells (GSECs) in tubular cells, age-inappropriately disarranged and irregularly sized vascular smooth muscle cells (AiDIVs), and red-coloured podocytes (ReCPos) by acidic dye. A genetic analysis using peripheral mononuclear blood cells and urine sediment cells detected the m.13513 G > A variant in the MT-ND5 gene. Therefore, this patient was diagnosed with FSGS due to an MT-ND5 gene mutation. Although this is not the first case report to show that an MT-ND5 gene mutation causes FSGS, this is the first to demonstrate podocyte injuries accompanied with accumulation of abnormal mitochondria in the cytoplasm.
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  • 文章类型: Journal Article
    未经批准:鱼腥草(L.)Vahl(莎草科)是一种草类草本植物,习惯性地在稻田中作为杂草繁殖,主要散布在南亚和东南亚的热带或亚热带国家,澳大利亚北部,和西非。传统上,该植物已被用作膏药的形式来治疗发烧。然而,没有关于其毒性特征的科学研究得到证实。
    UNASSIGNED:已经进行了这项研究,以确定从鱼尾草叶中提取的甲醇提取物的潜在毒性,在小鼠中采用急性和亚慢性口服给药技术。
    UNASSIGNED:在根据OECD指南425的急性毒性研究中,在两种性别的瑞士白化病小鼠中以2000和5000mg/kg的单剂量口服FM甲醇提取物。有毒症状,异常行为,体重的变化,和死亡率观察连续14天。在根据OECD指南407的亚慢性毒性研究中,植物提取物以每天100、500、1000和2000mg/kg的剂量口服施用28天。一般的中毒症状,异常行为,每天观察体重变化。血清生化分析,研究结束时进行肝脏组织病理学检查。
    未经批准:无死亡,异常行为和排尿,睡眠的变化,食物摄入量,不利影响,在2000和5000mg/kg剂量的急性毒性研究中,已经记录了体重的非线性。此外,在亚慢性毒性研究中,FM提取物在一般行为方面没有产生死亡率或任何不利影响,体重,排尿,睡眠常规,和食物摄入。在分析十三个不同的生化参数的情况下,在急性和亚慢性研究中,雄性和雌性小鼠的天冬氨酸转氨酶(AST)和葡萄糖浓度均发生显着变化。总胆固醇和甘油三酯在5000mg/kg。在急性毒性研究中,雄性小鼠的bw发生变化。另一方面,雌性小鼠在亚慢性试验中改变了甘油三酯。发现所有其他关键参数未受影响。在亚慢性测试中,肝脏的组织病理学检查显示细胞坏死为2000mg/kg。bw在雄性和雌性小鼠中,而在1000mg/kg时观察到轻微的坏死。bw.因此,没有观察到的不良反应水平(NOAEL)可以假设在1000mg/kg左右。bw.
    未经证实:本研究表明,用FM提取物治疗未显示出明显的毒性。
    UNASSIGNED: Fimbristylis miliacea (L.) Vahl (Cyperaceae) is a grass like herb habitually breeds as weed in paddy fields and mostly disseminated in tropical or sub-tropical countries of south and south-east Asia, northern Australia, and west Africa. The plant has been traditionally used to treat fever as a form of poultice. However, no scientific study regarding its toxicity profile has been testified.
    UNASSIGNED: The study has been carried out to determine the potential toxicity of the methanol extract from leaves of the Fimbristylis miliacea, employing the technique of acute and subchronic oral administration in mice.
    UNASSIGNED: In the acute toxicity study according to OECD guideline 425, oral administration of FM methanol extract at single doses of 2000 and 5000 mg/kg in both sexes of Swiss albino mice was performed. Toxic symptoms, abnormal behavior, changes in body weight, and mortality were observed for 14 consecutive days. In subchronic toxicity study according to OECD guideline 407, plant extract was administered orally at doses of 100, 500, 1000, and 2000 mg/kg daily for 28 days. The general toxic symptoms, abnormal behavior, changes in body weight were observed daily. Biochemical analysis of serum, and histopathological examination of liver were performed at the end of the study.
    UNASSIGNED: No mortality, abnormal behavior and urination, changes in sleep, food intake, adverse effect, and non-linearity in body weight have been recorded during acute toxicity study at the doses of 2000 and 5000 mg/kg. Also, in subchronic toxicity study, FM extract produced no mortality or any kind of adverse effects in regards of general behavior, body weight, urination, sleeping routine, and food intake. In case of analysis of thirteen different biochemical parameters, concentrations of aspartate transaminase (AST) and glucose were altered significantly in male and female mice in both acute and subchronic study. Total cholesterol and triglycerides at 5000 mg/kg.bw were changed in male mice in acute toxicity study. On the other hand, female mice had altered triglycerides in subchronic test. All other critical parameters were found unaffected. In subchronic test, histopathological examination of liver demonstrated cellular necrosis at 2000 mg/kg.bw in both male and female mice while minor necrosis was observed at 1000 mg/kg.bw. Thus, the no observed adverse effect level (NOAEL) can be assumed around 1000 mg/kg.bw.
    UNASSIGNED: The present study suggests that treatment with FM extract does not reveal significant toxicity.
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  • 文章类型: Journal Article
    未经证实:亚临床甲状腺功能减退症(SCH)常导致血脂改变,这可能会对人类健康产生负面影响。脂质是否反过来影响SCH的自然史尚不清楚。我们旨在评估血清脂质水平的纵向变化与SCH的自然史之间的关联。
    UNASSIGNED:这项回顾性队列研究使用了来自REACTION研究的数据,纳入了2011年7月1日至2014年12月19日之间的581例SCH患者,中位随访时间为3[IQR,2·86-3·21]年。排除数据缺失或可能影响甲状腺功能的患者。从相隔3年的血清脂质测量值计算血清脂质水平的变化,并以两种方式分类:1)第一,第二,以及基线和随访之间差异的第三个三分位数,以及2)从基线的百分比变化,即,血脂下降≥25%,微小的变化,和血脂增加≥25%。SCH的自然史包括甲状腺功能恢复,SCH持久性,或进展为明显的甲状腺功能减退症(OH)。通过多变量逻辑回归估计赔率(ORs)。对2012年1月1日至2016年12月31日进行的健康管理队列研究的数据进行了验证,中位随访时间为2[IQR,1·92-2·08]年。在使用与反应队列研究相同的纳入和排除标准后,412例SCH患者符合验证分析的条件。
    未经评估:研究中有132名(22·7%)男性和449名(77·3%)女性,平均年龄为56岁[IQR,49-62]年随访期间,270(46·5%),266(45·8%),27例(4.6%)患者甲状腺功能恢复,持久性SCH,进展到OH,分别。两种分组方式均显示脂质水平的变化与SCH的自然史之间存在显着关联。总胆固醇(TC)水平升高与进展为OH的更大风险独立相关(OR≥25%TC升高与微小变化:5·40;95%CI1·46-21·65),而TC水平下降则增加了向甲状腺功能正常消退的可能性(TC下降≥25%与小变化:3·45;95%CI1·09-12·43)。同样,根据甘油三酯(TG)水平变化的回归可能性与根据TC水平变化的回归趋势一致.在验证队列中观察到相似的关联模式。
    UNASSIGNED:SCH的血脂水平变化与未来的进展或消退风险相关,提示血脂水平的变化可能会影响SCH的自然史。临床医生应注意SCH患者血脂水平的长期控制,这可能有利于甲状腺功能。
    UNASSIGNED:这项工作得到了中国国家重点研究发展计划(2017YFC1309800)的资助,国家自然科学基金(81430020,82070818),和山东第一医科大学“人才驱动卓越大学”计划和学术促进计划(2019LJ007)。
    UNASSIGNED: Subclinical hypothyroidism (SCH) often leads to alterations in lipid profile, which may negatively impact humans health. Whether lipids in turn affect the natural history of SCH is unknown. We aimed to assess the association between longitudinal changes in serum lipid levels and the natural history of SCH.
    UNASSIGNED: This retrospective cohort study using data from the REACTION study included 581 patients with SCH who were enrolled between July 1, 2011, and December 19, 2014, with a median follow-up of three [IQR, 2·86-3·21] years. Patients with missing data or conditions that can affect thyroid function were excluded. Changes in serum lipid levels were calculated from serum lipid measurements 3 years apart and classified in two ways: 1) the first, second, and third tertiles of the difference between baseline and follow-up and 2) the percent change from baseline, namely, serum lipid decrease ≥ 25%, minor change, and serum lipid increase ≥ 25%. The natural history of SCH includes regression to euthyroidism, SCH persistence, or progression to overt hypothyroidism (OH). Odds ratios (ORs) were estimated by multivariable logistic regression. Validation was performed on data from a health management cohort study conducted from January 1, 2012, to December 31, 2016, with a median follow-up of two [IQR, 1·92-2·08] years. After using the same inclusion and exclusion criteria as the REACTION cohort study, 412 patients with SCH were eligible for the validation analysis.
    UNASSIGNED: There were 132 (22·7%) men and 449 (77·3%) women in the study, with a median age of 56 [IQR,49-62] years. During follow-up, 270 (46·5%), 266 (45·8%), and 27 (4·6%) patients had regression to euthyroidism, persistent SCH, and progression to OH, respectively. Both grouping manners showed a significant association between changes in lipid levels and the natural history of SCH. A total cholesterol (TC)-level increase was independently associated with a greater risk of progression to OH (OR for ≥ 25% TC increase vs. minor change: 5·40; 95% CI 1·46-21·65), whereas TC-level declines increased the likelihood of regressing to euthyroidism (OR for ≥ 25% TC decrease vs. minor change: 3·45; 95% CI 1·09-12·43). Similarly, the likelihood of regression according to changes in triglyceride (TG) levels exhibited a consistent trend with that according to TC-level changes. A similar pattern of association was observed in the validation cohort.
    UNASSIGNED: Changes in serum lipid levels in SCH are associated with future progression or regression risk, suggesting that the changes in serum lipid levels may affect the natural history of SCH. Clinicians should pay attention to the long-term control of serum lipids levels in populations with SCH, which may benefit thyroid function.
    UNASSIGNED: This work was supported by grants from the National Key Research and Development Program of China (2017YFC1309800), the National Natural Science Foundation (81430020, 82070818), and the \"Outstanding University Driven by Talents\" Program and Academic Promotion Program of Shandong First Medical University (2019LJ007).
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  • 文章类型: Clinical Trial
    未经证实:SARS-CoV-2会导致严重的急性呼吸道综合症,促使全球需要新的抗病毒治疗和支持治疗这种危及生命的病毒引起的器官衰竭。这项研究旨在帮助开发一种新的传统波斯医学(TPM)药物,并评估其在有主要症状的COVID-19患者中的有效性和安全性。
    UNASSIGNED:2022年2月,一项随机临床试验对德黑兰EmamReza(AJA)医院收治的160名确诊为COVID-19的患者进行了研究,伊朗。在他们住院期间,干预组接受了伊朗卫生和医学教育部(MOHME)批准的治疗方案,由伊朗方案组成,无花果;葡萄,红花,Cicerarietinum,Descurainiasophia种子,朱巴,鸡汤,大麦汤,玫瑰水,藏红花,还有肉桂香料.所有患者在人口统计学方面进行了比较,临床,和实验室变量。
    UNASSIGNED:将160例COVID-19患者分为干预组和对照组。在基线特征中,干预组与对照组比较差异无统计学意义(p>0.05)。使用SPSS软件版本22,统计分析显示四个症状的显着差异:肌痛,弱点,头痛,咳嗽(p<0.05)。在5天的治疗期间,对照组C反应蛋白显著降低(p<0.05)。
    UNASSIGNED:虽然需要更多样本量更大的研究,拟议的组合似乎在治疗COVID-19患者的症状和炎症生物标志物如C反应蛋白方面有效.伊朗临床试验注册(IRCT)IRCT20220227054140N1。
    UNASSIGNED: SARS-CoV-2 causes severe acute respiratory syndrome prompting worldwide demand for new antiviral treatments and supportive care for organ failure caused by this life-threatening virus. This study aimed to help develop a new Traditional Persian Medicine (TPM) -based drug and assess its efficacy and safety in COVID-19 patients with major symptoms.
    UNASSIGNED: In February 2022, a randomized clinical trial was conducted among 160 patients with a confirmed diagnosis of COVID-19 admitted to Emam Reza (AJA) Hospital in Tehran, Iran. During their hospitalization, the intervention group received a treatment protocol approved by Iran\'s Ministry of Health and Medical Education (MOHME), consisting of an Iranian regimen, Ficus carica; Vitis vinifera, Safflower, Cicer arietinum, Descurainiasophia seeds, Ziziphus jujuba, chicken soup, barley soup, rose water, saffron, and cinnamon spices. All patients were compared in terms of demographics, clinical, and laboratory variables.
    UNASSIGNED: One hundred and sixty COVID-19 patients were divided into two groups: intervention and control. In baseline characteristics, there was no significant difference between the intervention and control groups (p>0.05). Using SPSS software version 22, statistical analysis revealed a significant difference in four symptoms: myalgia, weakness, headache, and cough (p<0.05). During the 5-day treatment period, the control group had significantly lower C-reactive protein (p<0.05).
    UNASSIGNED: While more research with a larger sample size is needed, the proposed combination appears to be effective in the treatment of symptoms as well as inflammatory biomarkers such as C-reactive protein in COVID-19 patients.Iranian registry of clinical trials (IRCT) IRCT20220227054140N1.
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  • 文章类型: Journal Article
    未经证实:有报告称索非布韦的肾功能恶化,但是没有不同直接作用抗病毒药物(DAA)对血清肌酐的比较数据。在这项回顾性队列分析中,我们检查了两种常用方案的治疗效果,sofosbuvir/ledipasvir(SOF/LDV)和glecaprevir/pibrentasvir(GLE/PIB),血清肌酐。
    UNASSIGNED:我们纳入了2014年12月1日至2018年12月31日期间接受SOF/LDV(n=825)和GLE/PIB(n=116)治疗的所有患者。血清肌酐升高≥0.3mg/dL被认为具有临床意义。在未调整和调整的广义线性模型中测试两个治疗组之间从治疗前到治疗后的肌酐值的变化。并评估与肌酐变化相关的危险因素。此外,使用倾向评分将GLE/PIB治疗的患者与SOF/LDV治疗的患者进行1:2匹配,然后比较血清肌酐的变化。
    UNASSIGNED:GLE/PIB组的平均基线肌酐较高。SOF/LDV组(1.39±1.86vs.0.91±0.24,P=0.007)。与基线相比时,SOF/LDV组治疗后第4周血清肌酐明显升高(0.97±0.4vs.0.91±0.24,P<0.001),但GLE/PIB组无明显变化(1.41±1.73vs.1.39±1.86,P=0.52)。总的来说,治疗后第4周和第24周血清肌酐无明显变化(P=0.6).在6%(46/825)的SOF/LDV和7%(8/116)的GLE/PIB(P=0.6)中可见血清肌酐的临床显着增加。未调整和调整的模型表明,从基线到治疗后第4周和第24周的肌酐变化与DAA组合的类型无关。
    未经证实:用SOF/LDV和GLE/PIB方案治疗慢性丙型肝炎感染可能导致肌酐升高,6-7%的血清肌酐增加≥0.3mg/dL。肌酐的增加,然而,与DAA组合的类型无关。
    UNASSIGNED: There are reports of worsening renal functions with sofosbuvir, but there are no comparative data of different direct-acting antivirals (DAAs) on serum creatinine. In this retrospective cohort analysis, we examined the treatment effect of two commonly used regimens, sofosbuvir/ledipasvir (SOF/LDV) and glecaprevir/pibrentasvir (GLE/PIB), on serum creatinine.
    UNASSIGNED: We included all patients treated with SOF/LDV (n = 825) and GLE/PIB (n = 116) between December 1, 2014, and December 31, 2018. An increase of serum creatinine ≥0.3 mg/dL was considered clinically significant. The change of creatinine values from pretreatment to posttreatment between two treatment groups was tested in unadjusted and adjusted generalized linear model, and risk factors associated with creatinine change were assessed. In addition, GLE/PIB-treated patients were matched 1:2 to SOF/LDV-treated patients using propensity scores, and then serum creatinine changes were compared.
    UNASSIGNED: The mean baseline creatinine was higher in the GLE/PIB group vs. SOF/LDV group (1.39 ± 1.86 vs. 0.91 ± 0.24, P = 0.007). When compared to baseline, serum creatinine at posttreatment week 4 was significantly higher in SOF/LDV group (0.97 ± 0.4 vs.0.91 ± 0.24, P < 0.001), but there was no significant change in the GLE/PIB group (1.41 ± 1.73 vs. 1.39 ± 1.86, P = 0.52). Overall, there was no significant change in serum creatinine between posttreatment week 4 and week 24 (P = 0.6). Clinically significant increase in serum creatinine was seen in 6% (46/825) of SOF/LDV and 7% (8/116) of GLE/PIB (P = 0.6). The unadjusted and adjusted models indicated that the changes in creatinine from baseline to posttreatment week 4 and week 24 were not associated with the type of DAA combination.
    UNASSIGNED: Treatment of chronic hepatitis C infection with both SOF/LDV and GLE/PIB regimens may result in an increase of creatinine, and 6-7% will have an increase in serum creatinine of ≥0.3 mg/dL. The increase in creatinine, however, is unrelated to the type of DAA combination.
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  • 文章类型: Journal Article
    巨肽受体介导的内吞作用参与庆大霉素(GM)摄取的关键作用,积累,和毒性。在这项研究中,我们研究了孟鲁司特(MLK)对megalin表达/内吞功能抗GM肾毒性的潜在影响.雄性Wistar大鼠每天分剂量施用GM(120mg/kg;i.p.),持续4小时;30mg/kg/hr;持续7天。MLK(30mg/kg/天)在之前7天口服给药,然后与GM同时给药。megalin和氯化物通道5(ClC-5)的蛋白表达;megalin内吞功能的重要调节因子之一;通过Western印迹测定。此外,用异硫氰酸荧光素(FITC-BSA)标记的牛血清白蛋白被摄取到近端肾小管上皮细胞中,以评估megalin的内吞功能.此外,肾功能生物标志物(Cr,BUN,GFR,估计了KIM-1,胱抑素C)和凋亡标志物(p-AKT1,裂解的caspase-3)。与MLK共同处理下调了ClC-5的表达,导致megalin向质膜的再循环减少,减少表达,因此,内吞功能受损,这可以通过近端肾小管上皮细胞对FITC-BSA的摄取减少来证明。凋亡执行者裂解的caspase-3的蛋白质表达显着降低,而抗凋亡p-AKT1升高。肾功能和组织学发现的改善证实了这些结果。我们的数据表明,MLK可能干扰megalin表达/内吞功能,这可能归因于ClC-5蛋白表达的下调。这最终减少了GM给药后的肾细胞凋亡并改善了肾功能,而不会影响GM的抗菌活性。因此,减少ClC-5的表达和MLK对megalin表达/内吞功能的干扰可能是抗GM肾毒性的有效策略。
    Megalin receptor-mediated endocytosis participates a crucial role in gentamicin (GM) uptake, accumulation, and toxicity. In this study, we investigated the potential effects of montelukast (MLK) on megalin expression/endocytic function against GM nephrotoxicity. Male Wistar rats were administered GM (120 mg/kg; i.p.) daily in divided doses along 4 hr; 30 mg/kg/hr; for 7 days. MLK (30 mg/kg/day) was orally administered 7 days before and then concurrently with GM. The protein expressions of megalin and chloride channel-5 (ClC-5); one of the essential regulators of megalin endocytic function; were determined by Western blotting. Besides, the endocytic function of megalin was evaluated by the uptake of bovine serum albumin labeled with fluorescein isothiocyanate (FITC-BSA) into proximal tubular epithelial cells. Moreover, kidney function biomarkers (Cr, BUN, GFR, KIM-1, cystatin-C) and apoptosis markers (p-AKT1, cleaved caspase-3) were estimated. Co-treatment with MLK downregulated ClC-5 expression leading to reduced recycling of megalin to the plasma membrane, reduced expression, and so impaired endocytic function that was evidenced by reduced uptake of FITC-BSA in proximal tubular epithelial cells. The protein expression of the apoptotic executioner cleaved caspase-3 was significantly reduced, while that of the antiapoptotic p-AKT1 was elevated. These results were confirmed by the improvement of kidney functions and histological findings. Our data suggest that MLK could interfere with megalin expression/endocytic function that could be attributed to downregulation of ClC-5 protein expression. That eventually reduces renal cell apoptosis and improves kidney functions after GM administration without affecting the antibacterial activity of GM. Therefore, reduced expression of ClC-5 and interference with megalin expression/endocytic function by MLK could be an effective strategy against GM nephrotoxicity.
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  • 文章类型: Case Reports
    输尿管镜激光碎石术后对侧肾脏发生气肿性肾盂肾炎(EPN)是一种不寻常的临床表现,从未在文献中报道过。在确保无菌尿液培养后,一名73岁的女性接受了左输尿管镜检查,激光碎石和支架置入治疗15毫米肾小管下结石。她当天出院,4天后取出支架。一周后,她因败血症入院,并发现右肾有EPN,手术的肾脏没有结石或感染的迹象。高临床怀疑指数和及时的管理导致了成功的结果。
    Emphysematous pyelonephritis (EPN) developing in the contralateral kidney after ureteroscopic laser lithotripsy is an unusual clinical presentation and has never been reported in the literature. After ensuring sterile urine culture a 73-year-old female underwent left ureteroscopy, laser lithotripsy and stent placement for 15mm lower calyceal renal calculus. She was discharged same day and stent removed after 4 days. 1 week later she was admitted with sepsis and found to have EPN in the right kidney, with no evidence of stone or infection in the operated kidney. High index of clinical suspicion and prompt management resulted in successful outcome.
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  • 文章类型: Journal Article
    未经证实:肝性脑病(HE)是经颈静脉肝内门体分流术(TIPS)后的主要并发症,主要受肠道微生物群的影响。我们旨在评估TIPS后微生物群的改变以及此类改变与HE之间的关联。
    UNASSIGNED:我们对106例接受TIPS治疗的肝硬化患者进行了一项前瞻性纵向研究。在TIPS之前和之后收集粪便样本,通过16S核糖体RNA测序分析肠道微生物群。
    未经批准:在所有患者中,33例TIPS后6个月内出现HE(HE+组),73例未出现HE-组,18人在随访中死亡。TIPS之后,本土类群增加了,而在HE-组中潜在的致病类群减少,HE组的本地分类单元Lachnospirosaceae减少。此外,在所有患者中观察到有害细菌之间的协同作用,TIPS后HE组减弱(p<0.001),HE组增强(p<0.01)。5个自生类群的变化,即,球菌,Ruminococus,Blautia,反刍动物科_未培养,和Roseburia,与HE严重程度呈负相关。值得注意的是,球菌和反刍动物的丰度增加是抗HE的保护因素,患者HE的发生率有所改善,稳定,TIPS后微生物群恶化分别为13.3%、25.9%和68.2%,分别。总胆红素水平较高,Child-Pugh评分,终末期肝病评分模型,肉芽肿,TIPS前的Alistipes和下下下颗粒是死亡的独立危险因素。
    未经证实:肠道菌群失调的改变与TIPS后HE的发生和严重程度呈负相关,TIPS前的微生物群与死亡有关,提示肠道菌群可能是筛选接受TIPS的合适患者以及预防和治疗TIPS后HE的潜在生物学目标。
    未经批准:经颈静脉肝内门体分流术(TIPS)后肠道菌群的改变以及这种改变与TIPS后肝性脑病(HE)之间的关系仍不清楚。因此,我们进行了这项研究,发现在TIPS之后,肠道微生物群的恢复,主要特征是本土类群的扩张,有害分类群的消耗,和削弱有害细菌之间的协同作用,与TIPS后HE的发生和严重程度成反比。
    UNASSIGNED: Hepatic encephalopathy (HE) is a major complication after transjugular intrahepatic portosystemic shunt (TIPS) and is primarily influenced by the gut microbiota. We aimed to evaluate alterations in the microbiota after TIPS and the association between such alterations and HE.
    UNASSIGNED: We conducted a prospective longitudinal study of 106 patients with cirrhosis receiving TIPS. Faecal samples were collected before and after TIPS, and the gut microbiota was analysed by 16S ribosomal RNA sequencing.
    UNASSIGNED: Among all patients, 33 developed HE (HE+ group) within 6 months after TIPS and 73 did not (HE- group), and 18 died during follow-up. After TIPS, the autochthonous taxa increased, whereas the potential pathogenic taxa decreased in the HE- group, and the autochthonous taxon Lachnospiraceae decreased in the HE+ group. Furthermore, synergism among harmful bacteria was observed in all patients, which was weakened in the HE- group (p <0.001) but enhanced in the HE+ group (p <0.01) after TIPS. Variations of 5 autochthonous taxa, namely, Coprococcus, Ruminococcus, Blautia, Ruminococcaceae_uncultured, and Roseburia, were negatively correlated with the severity of HE. Notably, increased abundances of Coprococcus and Ruminococcus were protective factors against HE, and the incidences of HE in patients with improved, stable, and deteriorated microbiota after TIPS were 13.3, 25.9, and 68.2%, respectively. Higher total bilirubin level, Child-Pugh score, model for end-stage liver disease score, Granulicatella, and Alistipes and lower Subdoligranulum before TIPS were the independent risk factors for death.
    UNASSIGNED: Alterations in gut dysbiosis were negatively related to the occurrence and severity of post-TIPS HE, and the pre-TIPS microbiota were associated with death, suggesting the gut microbiota could be a promising potential biological target for screening suitable patients receiving TIPS and prevention and treatment of post-TIPS HE.
    UNASSIGNED: Alterations in the gut microbiota after transjugular intrahepatic portosystemic shunt (TIPS) and the relationship between such alterations and post-TIPS hepatic encephalopathy (HE) remain unclear. We therefore performed this study and found that after TIPS, restoration of the gut microbiota, mainly characterised by expansion of autochthonous taxa, depletion of harmful taxa, and weakening of synergism among harmful bacteria, was inversely related to the occurrence and severity of post-TIPS HE.
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  • 文章类型: Journal Article
    肝细胞癌(HCC)已被称为全球第二常见的主要癌症,因为它对化疗和药物的反应都很差。雷公藤甲素(TP),二萜三环氧化物,是一种有前途的治疗剂,因为它对包括HCC在内的多种癌症具有有效的抗癌作用。然而,由于其严重的全身毒性,其临床应用受到限制,低溶解度,在体内快速消除。因此,为了克服上述障碍,设计了光敏剂Ce6和化疗药物TP(TP/Ce6-LP)整合的可光活化脂质体(LP),以追求HCC治疗中的药物控释和协同光动力疗法。由于增强的通透性和滞留(EPR)效应,包封在脂质体中的TP积累到肿瘤部位。在激光照射下,光敏剂Ce6产生活性氧(ROS)并进一步氧化不饱和磷脂。这样,脂质体被破坏以释放TP。用NIR激光照射的TP/Ce6-LP(TP/Ce6-LPL)在体外和体内对患者来源的HCC肿瘤异种移植物(PDXHCC)均显示出最佳的抗肿瘤作用。TP/Ce6-LP可显著降低TP的副作用。此外,TP/Ce6-LP+L通过caspase-3/PARP信号通路诱导细胞凋亡。总的来说,TP/Ce6-LP+L是一种新的潜在治疗选择,在停止肝癌进展与毒性减弱。
    Hepatocellular carcinoma (HCC) has been known as the second common leading cancer worldwide, as it responds poorly to both chemotherapy and medication. Triptolide (TP), a diterpenoid triepoxide, is a promising treatment agent for its effective anticancer effect on multiple cancers including HCC. However, its clinical application has been limited owing to its severe systemic toxicities, low solubility, and fast elimination in the body. Therefore, to overcome the above obstacles, photo-activatable liposomes (LP) integrated with both photosensitizer Ce6 and chemotherapeutic drug TP (TP/Ce6-LP) was designed in the pursuit of controlled drug release and synergetic photodynamic therapy in HCC therapy. The TP encapsulated in liposomes accumulated to the tumor site due to the enhanced permeability and retention (EPR) effect. Under laser irradiation, the photosensitizer Ce6 generated reactive oxygen species (ROS) and further oxidized the unsaturated phospholipids. In this way, the liposomes were destroyed to release TP. TP/Ce6-LP with NIR laser irradiation (TP/Ce6-LP+L) showed the best anti-tumor effect both in vitro and in vivo on a patient derived tumor xenograft of HCC (PDXHCC). TP/Ce6-LP significantly reduced the side effects of TP. Furthermore, TP/Ce6-LP+L induced apoptosis through a caspase-3/PARP signaling pathway. Overall, TP/Ce6-LP+L is a novel potential treatment option in halting HCC progression with attenuated toxicity.
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  • 文章类型: Journal Article
    UNASSIGNED: Cisplatin (CDDP) nephrotoxicity is one of the most significant complications limiting its use in cancer therapy.
    UNASSIGNED: This study investigated the pivotal role played by thrombin in CDDP-mediated nephrotoxicity. This work also aimed to clarify the possible preventive effect of Dabigatran (Dab), a direct thrombin inhibitor, on CDDP nephrotoxicity.
    UNASSIGNED: Animals were grouped as follow; normal control group, CDDP nephrotoxicity group, CDDP + Dab 15, and CDDP + Dab 25 groups. Four days following CDDP administration, blood and urine samples were collected to evaluate renal function. Moreover, tissue samples were collected from the kidney to determine apoptosis markers, oxidative stress and histopathological evaluation. An immunofluorescence analysis of tissue factor (TF), thrombin, protease-activated receptor-2 (PAR2), fibrin, pERK1/2 and P53 proteins expression was also performed.
    UNASSIGNED: Thrombin, pERK, cleaved caspase-3, and oxidative stress markers were significantly elevated in CDDP-treated group. However, pretreatment of animals with either low or high doses of Dab significantly improved kidney function and decreased oxidative stress and apoptotic markers.
    UNASSIGNED: We conclude that thrombin is an important factor in the pathogenesis of CDDP kidney toxicity via activation of ERK1/2, P53 and caspase-3 pathway, which can be effectively blocked by Dab.
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