Chol, cholesterol

CHOL,胆固醇
  • 文章类型: Journal Article
    本文旨在研究不同膳食脂肪类型与肥胖和冠状动脉指数的相关性。以横断面方式纳入了491名健康成年人的样本。膳食脂肪的摄入量,肥胖指数(锥度指数(CI),身体肥胖指数(BAI),腹部容积指数(AVI),身体圆度指数(BRI),和体重调整腰围指数(WWI)),和心血管指数(心脏代谢指数(CMI),脂质积累产物(LAP),计算并研究了血浆动脉粥样硬化指数(AIP)。Omega-3摄入量可接受的参与者的BRI得分较高(1·90±0·06v.1·70±0·06)。胆固醇摄入量不可接受的参与者的CI较高(1·31±0·11v.1·28±0·12;P=0·011),AVI(20·24±5·8·18·33±6·0;P<0·001),BRI(2·00±1·01v.1·70±1·00;P=0·003),一战(11·00±0·91诉10·80±0·97;P=0·032),和较低的AIP(0·46±0·33与0·53±0·33;P=0·024)。总脂肪,饱和脂肪(SFA)多不饱和脂肪(PUFA)摄入量与AVI和BRI呈中度显著相关。单不饱和脂肪(MUFA)摄入量与CI、AVI、BRI,WWI,和AIP。胆固醇和omega-6与所有指标的相关性较弱。在男性和女性参与者中也看到了类似的相关性。不同类型的脂肪摄入显著影响肥胖和冠状动脉指数,特别是SFA和PUFA,以及欧米茄-3和胆固醇。性别和饮食类型的脂肪摄入量对肥胖和冠状动脉指数的指标都有影响。
    This article aims to study the different dietary fat types associated with obesity and coronary indices. A sample of 491 healthy adults was included in a cross-sectional manner. Dietary fats intake, obesity indices (conicity index (CI), body adiposity index (BAI), abdominal volume index (AVI), body roundness index (BRI), and weight-adjusted-waist index (WWI)), and cardiovascular indices (cardiometabolic index (CMI), lipid accumulation product (LAP), and atherogenic index of plasma (AIP)) were calculated and studied. Participants with an acceptable intake of omega-3 had a higher BRI score (1⋅90 ± 0⋅06 v. 1⋅70 ± 0⋅06). Participants with an unacceptable intake of cholesterol had a higher CI (1⋅31 ± 0⋅11 v. 1⋅28 ± 0⋅12; P = 0⋅011), AVI (20⋅24 ± 5⋅8 v. 18⋅33 ± 6⋅0; P < 0⋅001), BRI (2⋅00 ± 1⋅01 v. 1⋅70 ± 1⋅00; P = 0⋅003), WWI (11⋅00 ± 0⋅91 v. 10⋅80 ± 0⋅97; P = 0⋅032), and lower AIP (0⋅46 ± 0⋅33 v. 0⋅53 ± 0⋅33; P = 0⋅024). Total fat, saturated fat (SFA), and polyunsaturated fat (PUFA) intake had a significant moderate correlation with AVI and BRI. The monounsaturated fat (MUFA) intake had a significantly weak correlation with CI, AVI, BRI, WWI, and AIP. Cholesterol and omega-6 had weak correlations with all indices. Similar correlations were seen among male and female participants. The different types of fat intake significantly affected obesity and coronary indices, especially SFA and PUFA, as well as omega-3 and cholesterol. Gender and the dietary type of fat intake have a relationship to influence the indicators of both obesity and coronary indices.
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  • 文章类型: Journal Article
    新薄荷醇,一种环状单萜,是薄荷醇的立体异构体,存在于薄荷醇的精油中。它在食品中用作调味剂,在化妆品和药品,因为它的冷却效果。然而,新薄荷脑对其抗癌潜力的研究并不多。此外,靶向透明质酸酶,组织蛋白酶-D,植物化学物质和ODC是癌症预防和/或治疗的有效方法之一。
    研究新薄荷脑对人类癌症的分子和细胞靶标的抗增殖潜力(A431,PC-3,K562,A549,FaDu,MDA-MB-231,COLO-205,MCF-7和WRL-68)和正常(HEK-293)细胞系。
    使用SRB在人类癌症和正常细胞系上评估了新薄荷脑的效力,NRU和MTT测定。在无细胞和基于细胞的测试系统中进行了新薄荷醇的基于分子靶标的研究。Further,通过实时定量PCR分析和分子对接研究证实了新薄荷脑的效力.在小鼠EAC模型上进行了新薄荷脑的体内抗癌潜力,并通过计算机模拟进行了毒性检查。离体和体内方法。
    新薄荷醇通过阻止G2/M期并增加亚二倍体细胞的数量,对人表皮样癌(A431)细胞具有有希望的活性(IC5017.3±6.49μM)。它显着抑制透明质酸酶活性(IC5012.81±0.01μM)并影响微管蛋白聚合。表达分析和分子对接研究支持基于体外分子和细胞靶标的结果。新薄荷醇在75mg/kgbw时可预防EAC肿瘤形成58.84%,并抑制透明质酸酶活性高达10%,腹膜内剂量。在急性口服毒性研究中发现1000毫克/千克体重的口服剂量是安全的。
    新薄荷醇通过抑制微管蛋白聚合和透明质酸酶活性来延缓皮肤癌细胞的生长,负责肿瘤的生长,转移,和血管生成。
    Neomenthol, a cyclic monoterpenoid, is a stereoisomer of menthol present in the essential oil of Mentha spp. It is used in food as a flavoring agent, in cosmetics and medicines because of its cooling effects. However, neomenthol has not been much explored for its anticancer potential. Additionally, targeting hyaluronidase, Cathepsin-D, and ODC by phytochemicals is amongst the efficient approach for cancer prevention and/or treatment.
    To investigate the molecular and cell target-based antiproliferative potential of neomenthol on human cancer (A431, PC-3, K562, A549, FaDu, MDA-MB-231, COLO-205, MCF-7, and WRL-68) and normal (HEK-293) cell lines.
    The potency of neomenthol was evaluated on human cancer and normal cell line using SRB, NRU and MTT assays. The molecular target based study of neomenthol was carried out in cell-free and cell-based test systems. Further, the potency of neomenthol was confirmed by quantitative real-time PCR analysis and molecular docking studies. The in vivo anticancer potential of neomenthol was performed on mice EAC model and the toxicity examination was accomplished through in silico, ex vivo and in vivo approaches.
    Neomenthol exhibits a promising activity (IC50 17.3 ± 6.49 μM) against human epidermoid carcinoma (A431) cells by arresting the G2/M phase and increasing the number of sub-diploid cells. It significantly inhibits hyaluronidase activity (IC50 12.81 ± 0.01 μM) and affects the tubulin polymerization. The expression analysis and molecular docking studies support the in vitro molecular and cell target based results. Neomenthol prevents EAC tumor formation by 58.84% and inhibits hyaluronidase activity up to 10% at 75 mg/kg bw, i.p. dose. The oral dose of 1000 mg/kg bw was found safe in acute oral toxicity studies.
    Neomenthol delayed the growth of skin carcinoma cells by inhibiting the tubulin polymerization and hyaluronidase activity, which are responsible for tumor growth, metastasis, and angiogenesis.
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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
    法布里病是由酶α-半乳糖苷酶A(GLA)缺乏引起的溶酶体贮积病。酶缺乏导致糖脂的积累,随着时间的推移,导致心血管疾病,脑血管,和肾脏疾病,最终导致生命的第四个或第五个十年死亡。目前,溶酶体贮积症通过酶替代疗法(ERT)通过对患者直接施用缺失的酶来治疗。鉴于它们作为药物递送系统的优势,脂质体越来越多地被研究和用于制药,食品和化妆品行业,但是市场的主要障碍之一是它们的可扩展性。将膨胀的液体有机溶液减压成水溶液(DELOS-susp)是一种基于压缩流体的方法,可实现具有显着的物理化学特性的纳米囊泡系统的可重复和可扩展的生产,在同质性方面,形态学,和颗粒大小。这项工作的目的是通过实施质量设计(QbD)方法来优化和达到体内临床前研究的合适配方,FDA和EMA推荐的开发强大的药物生产和控制方法的方法,制备用于治疗法布里病的载有α-半乳糖苷酶的纳米脂质体(nanoGLA)。通过风险分析和实验设计(DoE),我们获得了设计空间,其中发现GLA浓度和脂质浓度是实现稳定纳米制剂的关键参数。该设计空间允许优化该方法以生产适用于体内临床前测试的纳米制剂。
    Fabry disease is a lysosomal storage disease arising from a deficiency of the enzyme α-galactosidase A (GLA). The enzyme deficiency results in an accumulation of glycolipids, which over time, leads to cardiovascular, cerebrovascular, and renal disease, ultimately leading to death in the fourth or fifth decade of life. Currently, lysosomal storage disorders are treated by enzyme replacement therapy (ERT) through the direct administration of the missing enzyme to the patients. In view of their advantages as drug delivery systems, liposomes are increasingly being researched and utilized in the pharmaceutical, food and cosmetic industries, but one of the main barriers to market is their scalability. Depressurization of an Expanded Liquid Organic Solution into aqueous solution (DELOS-susp) is a compressed fluid-based method that allows the reproducible and scalable production of nanovesicular systems with remarkable physicochemical characteristics, in terms of homogeneity, morphology, and particle size. The objective of this work was to optimize and reach a suitable formulation for in vivo preclinical studies by implementing a Quality by Design (QbD) approach, a methodology recommended by the FDA and the EMA to develop robust drug manufacturing and control methods, to the preparation of α-galactosidase-loaded nanoliposomes (nanoGLA) for the treatment of Fabry disease. Through a risk analysis and a Design of Experiments (DoE), we obtained the Design Space in which GLA concentration and lipid concentration were found as critical parameters for achieving a stable nanoformulation. This Design Space allowed the optimization of the process to produce a nanoformulation suitable for in vivo preclinical testing.
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  • 文章类型: Journal Article
    脂质体作为药物递送载体在临床上取得了令人瞩目的成就。脂质体产品主要受益于远程药物装载技术,该技术在两亲性和/或可电离药物中取得成功,但对于非电离和水溶性差的治疗剂似乎不切实际,从而阻碍了广泛的有希望的药物搭便车脂质体用于疾病治疗。在这项研究中,通过简单的一步合成设计了一系列弱酸药物衍生物,可以通过pH梯度法远程加载到脂质体中。选择卡巴他赛(CTX)弱酸衍生物来评估其安全性,药效学,和药代动力学。CTX弱酸衍生物脂质体在安全性方面优于Jevtana®,包括全身毒性,血液学毒性,和潜在的中枢神经毒性。具体来说,研究表明,脂质体具有减弱CTX对皮质和海马神经元潜在毒性的能力.由于更高的安全性和升高的耐受剂量,在前列腺癌和转移癌治疗中实现了CTX弱酸衍生物负载脂质体的显著优势。
    Liposomes have made remarkable achievements as drug delivery vehicles in the clinic. Liposomal products mostly benefited from remote drug loading techniques that succeeded in amphipathic and/or ionizable drugs, but seemed impracticable for nonionizable and poorly water-soluble therapeutic agents, thereby impeding extensive promising drugs to hitchhike liposomal vehicles for disease therapy. In this study, a series of weak acid drug derivatives were designed by a simplistic one step synthesis, which could be remotely loaded into liposomes by pH gradient method. Cabazitaxel (CTX) weak acid derivatives were selected to evaluate regarding its safety profiles, pharmacodynamics, and pharmacokinetics. CTX weak acid derivative liposomes were superior to Jevtana® in terms of safety profiles, including systemic toxicity, hematological toxicity, and potential central nerve toxicity. Specifically, it was demonstrated that liposomes had capacity to weaken potential toxicity of CTX on cortex and hippocampus neurons. Significant advantages of CTX weak acid derivative-loaded liposomes were achieved in prostate cancer and metastatic cancer therapy resulting from higher safety and elevated tolerated doses.
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  • 文章类型: Journal Article
    在许多方面,癌细胞不同于健康细胞。许多基于战术纳米的药物递送系统是基于癌症和健康细胞之间的差异。目前,基于纳米技术的递送系统是向癌细胞递送基于DNA的产品的最有前途的工具。这篇综述旨在强调脂质和聚合物纳米载体的最新进展,用于将siRNA递送到癌细胞。它还提供了有关siRNA开发及其作用机制的必要信息。总的来说,这篇综述为我们提供了一个清晰的图片脂质和聚合物为基础的药物递送系统,这在未来可能成为将基本的siRNA生物学转化为基于siRNA的癌症治疗的基础。
    In many ways, cancer cells are different from healthy cells. A lot of tactical nano-based drug delivery systems are based on the difference between cancer and healthy cells. Currently, nanotechnology-based delivery systems are the most promising tool to deliver DNA-based products to cancer cells. This review aims to highlight the latest development in the lipids and polymeric nanocarrier for siRNA delivery to the cancer cells. It also provides the necessary information about siRNA development and its mechanism of action. Overall, this review gives us a clear picture of lipid and polymer-based drug delivery systems, which in the future could form the base to translate the basic siRNA biology into siRNA-based cancer therapies.
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  • 文章类型: Journal Article
    随着生物治疗的发展,生物大分子药物最近获得了极大的关注,特别是在药物开发领域由于复杂的体内功能。在过去的几年里,已经开发了各种各样的生物大分子药物给药策略,以克服成药的困难,例如,不稳定,容易受到生理障碍的限制。应用新型递送系统递送生物大分子药物通常可以延长半衰期,增加生物利用度,或提高患者的依从性,大大提高了生物大分子药物的疗效和临床应用潜力。在这次审查中,总结了近年来关于高分子药物在癌症治疗中的药物递送策略的研究,主要是借鉴过去五年的发展。
    With the development of biotherapy, biomacromolecular drugs have gained tremendous attention recently, especially in drug development field due to the sophisticated functions in vivo. Over the past few years, a motley variety of drug delivery strategies have been developed for biomacromolecular drugs to overcome the difficulties in the druggability, e.g., the instability and easily restricted by physiologic barriers. The application of novel delivery systems to deliver biomacromolecular drugs can usually prolong the half-life, increase the bioavailability, or improve patient compliance, which greatly improves the efficacy and potentiality for clinical use of biomacromolecular drugs. In this review, recent studies regarding the drug delivery strategies for macromolecular drugs in cancer therapy are summarized, mainly drawing on the development over the last five years.
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  • 文章类型: Journal Article
    熊果酸(UA)已用于替代医学数十年,人们对它的药用特性很感兴趣。尽管兴趣增加,尚未进行详细的长期毒性研究。这项研究的目的是确定UA对临床化学的长期毒性作用,血液学,凝血,病理学/形态学,大鼠的行为和运动技能。
    通过将UA溶解在Milli-Q水中的0.1%吐温80和0.5%羟丙基甲基纤维素的混合物中来制备溶液。对照组接收了车辆,测试组通过口服管饲法接受高达1000mg/kg/天的剂量。将该溶液连续90天给予雄性和雌性(Han-Wistar)大鼠。
    UA没有造成任何死亡,所有测试剂量的异常体重或异常病理。除此之外,在行为上没有观察到毒理学变化,神经毒性,凝血,与UA管理相关的血液学或临床化学。
    这项研究表明,连续90天口服UA不会导致任何剂量的毒性作用。因此,UA的NOAEL可能高于1000mg/kg/天。
    UNASSIGNED: Ursolic acid (UA) has been used in alternative medicine for decades, and there has been a great interest in its medicinal properties. Despite this increased interest, a detailed long-term toxicity study has not been performed. The objective of this study was to determine the long-term toxic effect of UA on clinical chemistry, haematology, coagulation, pathology/morphology, behaviour and motor skills in rats.
    UNASSIGNED: A solution was made by dissolving UA in a mixture of 0.1% Tween 80 and 0.5% hydroxypropyl methylcellulose in Milli-Q Water. The control group received the vehicle, and the test groups received a dose up to 1000 mg/kg/day via oral gavage. The solution was administered to both male and female (Han-Wistar) rats for 90 consecutive days.
    UNASSIGNED: UA did not cause any deaths, abnormal body weights or abnormal pathology at all test doses. In addition to that, no toxicological changes were observed in behaviour, neurotoxicity, coagulation, haematology or clinical chemistry that are related to the administration of UA.
    UNASSIGNED: This study indicates that oral dosing of UA for 90 consecutive days does not lead to toxic effects at any of the doses. Therefore, the NOAEL for UA is likely to be higher than 1000 mg/kg/day.
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  • 文章类型: Journal Article
    新形式的原纤化纤维素提供了用于食品的改进属性。常规纤维素及其许多衍生物已经被广泛用作食品添加剂,并且在许多国家被授权为安全地用于食品。然而,新形式尚未使用标准化测试方法进行彻底研究。这项研究评估了纤化纤维素的90天饮食毒性,与传统的纤维素相比,索尔卡·弗洛克.SpragueDawley大鼠喂食2%,3%,或4%的原纤化纤维素连续90天,平行SolkaFloc组用作对照。生存,临床观察,体重,食物消费,眼科评估,血液学,血清化学,尿液分析,死后解剖病理学,监测并进行组织病理学检查.没有注意到与原纤化纤维素的施用有关的不利观察。在本研究的条件下,根据评估的毒理学终点,原纤化纤维素的未观察到的不良反应水平(NOAEL)为2194.2mg/kg/天(男性)和2666.6mg/kg/天(女性),对应于雄性和雌性SpragueDawley大鼠的最高测试剂量(4%)。这些结果表明,原纤化纤维素表现类似于常规纤维素,并且当在这些浓度下用作食品成分时不引起安全问题。
    Novel forms of fibrillated cellulose offer improved attributes for use in foods. Conventional cellulose and many of its derivatives are already widely used as food additives and are authorized as safe for use in foods in many countries. However, novel forms have not yet been thoroughly investigated using standardized testing methods. This study assesses the 90-day dietary toxicity of fibrillated cellulose, as compared to a conventional cellulose, Solka Floc. Sprague Dawley rats were fed 2 %, 3 %, or 4 % fibrillated cellulose for 90 consecutive days, and parallel Solka Floc groups were used as controls. Survival, clinical observations, body weight, food consumption, ophthalmologic evaluations, hematology, serum chemistry, urinalysis, post-mortem anatomic pathology, and histopathology were monitored and performed. No adverse observations were noted in relation to the administration of fibrillated cellulose. Under the conditions of this study and based on the toxicological endpoints evaluated, the no-observed-adverse-effect level (NOAEL) for fibrillated cellulose was 2194.2 mg/kg/day (males) and 2666.6 mg/kg/day (females), corresponding to the highest dose tested (4 %) for male and female Sprague Dawley rats. These results demonstrate that fibrillated cellulose behaves similarly to conventional cellulose and raises no safety concerns when used as a food ingredient at these concentrations.
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  • 文章类型: Journal Article
    The aim of the present study was to investigate the associations between the habitual Ca intake and faecal fat and energy excretion as well as blood lipid profile in free-living normal-weight and overweight individuals. The participants were enrolled for an 8-d period where data from a 7-d diet registration (days 1-7), a 5-d faeces collection (days 3-7), a 2-d urine collection (days 5-7), and anthropometric measurements and a fasting blood sample (day 8) were collected. Analyses showed that dietary Ca intake (g/10 MJ per d) was positively associated with excretion of faecal fat (P = 0·004) and energy (P = 0·031) when adjusted for BMI, age, sex and intake of Ca-containing supplements. However, after adjustment for intake of fibre, the effect of Ca intake disappeared. Nevertheless, total cholesterol (CHOL) and LDL-CHOL concentrations were associated negatively with Ca intake (β -0·62 (95 % CI -0·96, -0·28) mmol/l, P < 0·001, and β -0·49 (95 % CI -0·78, -0·20) mmol/l, P = 0·001, respectively, per 1000 mg/10 MJ per d increase in Ca intake). In conclusion, incorporation of Ca-rich food products in a habitual diet was associated with reduced total CHOL and LDL-CHOL concentrations, which may lower the risk of CVD in the long term.
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