ALP, alkaline phosphatise

  • 文章类型: Journal Article
    未经评估:本研究计划评估肱三头肌皮褶厚度(TSFT),中臂肌围(MAMC)和生物电阻抗分析(BIA),用于使用双能X射线吸收法(DEXA)(参考)评估身体成分,并预测脂肪量(FM)和无脂肪量(FFM)肝硬化患者。
    未经评估:使用DEXA和BIA评估FM和FFM。皮肤褶皱卡尺用于测量TSFT,并计算了MAMC。Bland-Altman图用于确定一致性和线性回归分析,以获得预测FM和FFM的方程。
    未经证实:肝硬化患者(n=302,241名男性,年龄43.7±12.0岁)。Bland-Altman图显示,BIA和DEXA在估算FM和FFM方面非常吻合。大多数患者在协议范围内:FM(98%)和FFM(96.4%)。BIA与DEXA:FM(r=0.73,P≤0.001)和FFM(r=0.86,P≤0.001)呈正相关。DEXA(FM和FFM)与TSFT(r=0.69,P≤0.01)和MAMC(r=0.61,P≤0.01)呈正相关。BIA在发育集中的FM和FFM的观察值与预测值之间的平均差分别为0.01和0.05;而在验证集中,分别为-0.13和0.86。TSFT和MAMC在发育集中的观察值和预测值之间的平均差异为0.43和0.07;然而,在验证集中,分别为0.16和0.48。
    UNASSIGNED:人体测量法(TSFT和MAMC)和BIA简单易用,可替代DEXA用于肝硬化患者的常规临床设置中的FM和FFM评估。
    UNASSIGNED: This study was planned to evaluate triceps skinfold thickness (TSFT), mid-arm muscle circumference (MAMC) and bioelectrical impedance analysis (BIA) for assessing body composition using dual-energy X-ray absorptiometry (DEXA) (reference) and to predict fat mass (FM) and fat-free mass (FFM) in patients with cirrhosis.
    UNASSIGNED: FM and FFM were assessed by using DEXA and BIA. Skin-fold calliper was used for measuring TSFT, and MAMC was calculated. Bland-Altman plot was used to determine agreement and linear regression analysis for obtaining equations to predict FM and FFM.
    UNASSIGNED: Patients with cirrhosis (n = 302, 241 male, age 43.7 ± 12.0 years) were included. Bland-Altman plot showed very good agreement between BIA and DEXA for the estimation of FM and FFM. Majority of patients were within the limit of agreement: FM (98%) and FFM (96.4%). BIA shows a positive correlation with DEXA:FM (r = 0.73, P ≤ 0.001) and FFM (r = 0.86, P ≤ 0.001). DEXA (FM and FFM) shows a positive correlation with TSFT (r = 0.69, P ≤ 0.01) and MAMC (r = 0.61, P ≤ 0.01). The mean difference between the observed and predicted value of FM and FFM by BIA in the developmental set was 0.01 and 0.05, respectively; whereas in the validation set, it was -0.13 and 0.86, respectively. The mean difference between the observed and predicted value of TSFT and MAMC in the developmental set was 0.43 and 0.07; whereas, in the validation set, it was 0.16 and 0.48, respectively.
    UNASSIGNED: Anthropometry (TSFT and MAMC) and BIA are simple and easy to use and can be a substitute of DEXA for FM and FFM assessment in routine clinical settings in patients with cirrhosis.
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  • 文章类型: Journal Article
    癌症治疗的主要挑战是如何有效消除原发性肿瘤并充分诱导免疫原性细胞死亡(ICD)以激发强大的免疫反应来控制转移。这里,开发了一种自组装的级联生物反应器,以增强肿瘤渗透和饥饿的协同治疗来改善癌症治疗,化学动力学(CDT)和光热疗法。以葡萄糖氧化酶(GOx)为模板合成超小FeS-GOx纳米点,紫杉醇(PTX)通过疏水作用诱导形成自组装FeS-GOx@PTX(FGP)。在肿瘤部位积累后,FGP分解为较小的FeS-GOx,以增强肿瘤的深层渗透。GOx维持高的酶活性以在氧的辅助下催化葡萄糖以产生过氧化氢(H2O2)作为饥饿疗法。涉及再生H2O2的Fenton反应进而产生更多的羟基自由基以增强CDT。跟随808nm的近红外激光,通过联合治疗,FGP在体外和体内显示出显著的肿瘤抑制。随之而来的钙网织蛋白暴露增加了ICD并促进了树突状细胞的成熟。结合抗CTLA4检查点封锁,由于细胞毒性T淋巴细胞的肿瘤内浸润增强,FGP可以绝对消除原发性肿瘤并积极抑制远处肿瘤。我们的工作提出了一种有希望的原发性肿瘤和转移抑制策略。
    Major challenges for cancer treatment are how to effectively eliminate primary tumor and sufficiently induce immunogenic cell death (ICD) to provoke a robust immune response for metastasis control. Here, a self-assembled cascade bioreactor was developed to improve cancer treatment with enhanced tumor penetration and synergistic therapy of starvation, chemodynamic (CDT) and photothermal therapy. Ultrasmall FeS-GOx nanodots were synthesized with glucose oxidase (GOx) as template and induced by paclitaxel (PTX) to form self-assembling FeS-GOx@PTX (FGP) via hydrophobic interaction. After accumulated at tumor sites, FGP disassembles to smaller FeS-GOx for enhanced deep tumor penetration. GOx maintains high enzymatic activity to catalyze glucose with assistant of oxygen to generate hydrogen peroxide (H2O2) as starvation therapy. Fenton reaction involving the regenerated H2O2 in turn produced more hydroxyl radicals for enhanced CDT. Following near-infrared laser at 808 nm, FGPs displayed pronounced tumor inhibition in vitro and in vivo by the combination therapy. The consequent increased exposure to calreticulin amplified ICD and promoted dendritic cells maturation. In combination with anti-CTLA4 checkpoint blockade, FGP can absolutely eliminate primary tumor and avidly inhibit distant tumors due to the enhanced intratumoral infiltration of cytotoxic T lymphocytes. Our work presents a promising strategy for primary tumor and metastasis inhibition.
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  • 文章类型: Journal Article
    顺铂(CP)是一种有效的抗癌药物,广泛用于对抗实体瘤。然而,它表现出明显的副作用,包括肝毒性。尝试了几种策略来预防CP肝毒性,但未发现适合治疗应用。Nigellasativa已被证明可以预防/减少某些类型的心血管疾病的进展,肾脏和肝脏疾病。本研究调查了紫花苜蓿油(NSO)是否可以预防CP引起的肝毒性作用。将大鼠分为四组,即。control,CP,NSO和CPNSO。CPNSO和NSO组的动物给予NSO(2ml/kgbwt,口服)有或没有单一肝毒性剂量的CP(6mg/kgbwt,i.p.)分别。通过增加的血清ALT和AST活性记录CP肝毒性。CP处理引起氧化剂/抗氧化剂失衡,表现为脂质过氧化作用增加,酶和非酶抗氧化剂减少。此外,CP处理改变了各种碳水化合物代谢和膜酶的活性。相比之下,向CP处理的大鼠施用NSO,显著改善CP引起的肝脏有害改变。组织病理学观察显示在CP处理的动物中广泛的肝损伤,而在CPNSO组中极大地减少组织损伤。总之,NSO可能通过改善能量代谢和加强抗氧化防御机制来保护CP诱导的肝毒性。
    Cisplatin (CP) is a potent anti-cancer drug widely used against solid tumors. However, it exhibits pronounced adverse effects including hepatotoxicity. Several strategies were attempted to prevent CP hepatotoxicity but were not found suitable for therapeutic application. Nigella sativa has been shown to prevent/reduce the progression of certain type of cardiovascular, kidney and liver diseases. Present study investigates whether N. sativa oil (NSO) can prevent CP induced hepatotoxic effects. Rats were divided into four groups viz. control, CP, NSO and CPNSO. Animals in CPNSO and NSO group were administered NSO (2 ml/kg bwt, orally) with or without single hepatotoxic dose of CP (6 mg/kg bwt, i.p.) respectively. CP hepatotoxicity was recorded by increased serum ALT and AST activities. CP treatment caused oxidant/antioxidant imbalances as reflected by increased lipid peroxidation and decreased enzymatic and non-enzymatic antioxidants. Furthermore, the activities of various carbohydrate metabolism and membrane enzymes were altered by CP treatment. In contrast, NSO administration to CP treated rats, markedly ameliorated the CP elicited deleterious alterations in liver. Histopathological observations showed extensive liver damage in CP treated animals while greatly reduced tissue injury in CPNSO group. In conclusion, NSO appears to protect CP induced hepatotoxicity by improving energy metabolism and strengthening antioxidant defense mechanism.
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  • 文章类型: Journal Article
    Wilson disease is caused by the accumulation of copper in the liver, brain or other organs, due to the mutation in ATP7B gene, which encodes protein that helps in excretion of copper in the bile canaliculus. Clinical presentation varies from asymptomatic elevation of transaminases to cirrhosis with decompensation. Hepatocellular carcinoma is a known complication of cirrhosis, but a rare occurrence in Wilson disease. We present a case of neurological Wilson disease, who later developed decompensated cirrhosis and hepatocellular carcinoma.
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  • 文章类型: Journal Article
    Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in developed as well as in developing countries. Its prevalence continues to rise currently affecting approximately 20-30% of adults and 10% of children in the United States. Non-alcoholic fatty liver disease represents a wide spectrum of conditions ranging from fatty liver, which in general follows a benign non-progressive clinical course, to non-alcoholic steatohepatitis (NASH), a more serious form of NAFLD that may progress to cirrhosis and end-stage liver disease. Liver biopsy remains the gold standard for evaluating the degree of hepatic necroinflammation and fibrosis; however, several non-invasive investigations, such as serum biomarkers, have been developed to establish the diagnosis and also to evaluate treatment response. There has been a substantial development of non-invasive risk scores, biomarker panels, and radiological modalities to identify at risk patients with NAFLD without recourse to liver biopsy on a routine basis. Examples include combination of serum markers like NAFLD fibrosis score (NFS), BARD score, fibrometer, FIB4, and non-invasive tools like fibroscan which assess fibrosis in patients with NAFLD. Other markers of fibrosis that have been evaluated include high-sensitivity C-reactive protein, plasma pentraxin 3, interleukin-6, and cytokeratin-18. This review focuses on the methods currently available in daily clinical practice in hepatology and touches briefly on the potential future markers under investigation.
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