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Evaluation of Engraftment and Adverse Effects of Granulocyte Colony Stimulating Factor versus PEG Granulocyte Colony Stimulating Factor in Patients Undergoing Autologous Hematopoietic Stem Cell Transplantation 粒细胞集落刺激因子与PEG粒细胞集落刺激因子在自体造血干细胞移植患者中的植入及不良反应的评价
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2021-01-01 DOI: 10.22034/IJPS.2021.245261
M. Mehdizadeh, Maria Tavakoli-Ardakani, Shayan Zamani, G. Zamani, N. Nikpour
Hematopoietic stem cell transplantation (HSCT) is an effective treatment for many hematological malignancies. Engraftment is the foremost step in the autologous hematopoietic stem cell transplantation (AHSCT) process in which different granulocyte colony-stimulating factors with various administration are used. In this study, we evaluated and compared the efficacy and side effects of two forms of recombinant granulocyte colony-stimulating growth factors (GCSF) ,GCSF and Peg GCSF, In this randomized clinical trial, 60 consecutive patients with multiple myeloma, Hodgkin's and non-Hodgkin's lymphoma who underwent AHSCT were included, the average age of the patients was 55; the patients were then divided into two groups so the comparison of efficacy and side effects between the two methods become achievable. The local ethical committee approved the study with the code of SB2019:210291, and the Helsinki declaration was respected across the study. In the first group, patients received peg GCSF at a dose of 6 mg on day five, and the second group received GCSF started with 5μg/kg from day 5. We compared engraftment time and adverse effects in the two groups. Our study demonstrated no difference between the two groups regarding need for transfusion and infection complications; also, the two groups did not differ in terms of the flue-like syndrome, the type of infection and the recorded number of febrile neutropenia. Mean leukocyte engraftment days were 10.97 ± 1 and 11.1 ± 1.1 that was similar in both groups (P=0.328). Mean platelet engraftment days were 11.03 ± 2.4 and 11.1 ± 2.4 without significant difference (P=0.714).it was concluded that Pegfilgrastimhas the same efficacy and safety profile in comparison to Filgrastim. Therefore, since Pegfilgrastim has a easier method of injection and can simplify the HSCT process.
造血干细胞移植(HSCT)是治疗多种血液系统恶性肿瘤的有效方法。移植是自体造血干细胞移植(AHSCT)过程中最重要的一步,其中使用了不同剂量的粒细胞集落刺激因子。在这项研究中,我们评估并比较了两种形式的重组粒细胞集落刺激生长因子(GCSF) GCSF和Peg GCSF的疗效和副作用。在这项随机临床试验中,纳入了60例连续接受AHSCT的多发性骨髓瘤、霍奇金淋巴瘤和非霍奇金淋巴瘤患者,患者平均年龄为55岁;然后将患者分为两组,以便比较两种方法的疗效和副作用。当地伦理委员会批准了该研究,代码为SB2019:210291,整个研究过程均遵守赫尔辛基宣言。第一组患者在第5天给予peg GCSF,剂量为6mg,第二组患者在第5天开始给予GCSF,剂量为5μg/kg。比较两组种植时间和不良反应。我们的研究表明,两组在输血需求和感染并发症方面没有差异;此外,两组在流感样综合征、感染类型和记录的发热性中性粒细胞减少症数量方面没有差异。两组平均白细胞植入天数分别为10.97±1天和11.1±1.1天,差异无统计学意义(P=0.328)。平均血小板植入天数分别为11.03±2.4天和11.1±2.4天,差异无统计学意义(P=0.714)。结论是pegfilgrastim与Filgrastim具有相同的疗效和安全性。因此,由于Pegfilgrastim具有更简单的注射方法,可以简化HSCT过程。
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引用次数: 0
Diversity of Phenolic Profiles in Peel of an Iranian Pomegranate Cultivar (Punica granatum L.) 伊朗石榴(Punica granatum L.)品种果皮酚类成分的多样性
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2021-01-01 DOI: 10.22034/IJPS.2020.124282.1656
A. Taleghani, R. Akbari
Pomegranate (Punica granatum L.) is one of the oldest known fruits native to Iran. In addition to multiple studies carried out on different parts of pomegranate, the peels are noted due to various phytochemicals in different colors and regions. In the present study, major anthocyanins and non-anthocyanins of an Iranian black pomegranate cultivar (i.e., pomegranate samples of Ghaemshahr, Iran) were analyzed using high-performance liquid chromatography-mass spectrometry. In total, 30 compounds were obtained from pomegranate peels. Among these compounds, 5 anthocyanins, 1 gallotannin, 15 ellagitannins, 4 hydroxybenzoic acids, 2 gallagyl esters, 1 dihydroflavonol, and 7 hydroxycinnamic acids were identified based on their fragmentation patterns and ultraviolet spectra. Among the varieties of Iranian pomegranates, the anthocyanins of peonidin-hexoside and cyanidin-pentoside were identified in this species for the first time. Peonidin-hexoside, caffeic acid, coumaric acid-hexoside, and galloyl-hexoside were major phenolic compounds. In addition, the antioxidant activity of different fractions was tested using DPPH free radical scavenging in vitro assay (IC50: 133.13-557.23 µg/mL). The obtained results of this study highlighted that this cultivar can be an important candidate for future new drug discoveries.
石榴(石榴L.)是伊朗最古老的已知水果之一。除了对石榴的不同部位进行的多项研究外,还注意到石榴皮由于不同颜色和不同区域的各种植物化学物质而被注意到。在本研究中,采用高效液相色谱-质谱法分析了伊朗黑石榴品种(即伊朗Ghaemshahr石榴样品)的主要花青素和非花青素。从石榴皮中共得到30种化合物。其中花青素5种,没食子单宁1种,鞣花单宁15种,羟基苯甲酸4种,没食子酸酯2种,二氢黄酮醇1种,羟基肉桂酸7种。在伊朗石榴品种中,首次在该品种中鉴定出牡丹花青素-己糖苷和花青素-戊糖苷中的花青素。牡丹苷己糖、咖啡酸、香豆酸己糖和没食子酰己糖是主要的酚类化合物。此外,采用体外DPPH自由基清除实验(IC50: 133.13 ~ 557.23µg/mL)检测不同组分的抗氧化活性。本研究结果表明,该品种可作为未来新药开发的重要候选品种。
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引用次数: 0
Information Sharing and Information Quality in the Drugs and Medical Consumables Supply Chain Management (SCM) 药品和医用耗材供应链管理中的信息共享与信息质量
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2021-01-01 DOI: 10.22034/IJPS.2020.115048.1612
M. Nooranian, Sakineh Saghaeiannejad Isfahani, Hoda Memarzadeh
Information management is considered as one of the keys to the supply chain management (SCM) success. This study intends to explore the factors affecting the knowledge sharing and knowledge quality in the SCM of the drugs and medical consumables. This applied study was conducted using analytical-survey research method. The research population consisted of 78 people involved in the supply chain of the drug and medical consumables in the teaching hospitals of Isfahan University of Medical Sciences (IUMS). Data were collected by a questionnaire whose face and content validity were both confirmed by pooling the ideas of some professors of Health Information Technology and Health-care Services Management faculties of IUMS. The reliability of the questionnaire was validated by estimating Cornbrash’s alpha coefficient (α=0.93). Data were analyzed using multiple regression analysis method and SPSS software version.23. Based on the results, the environmental uncertainty and intra-organizational facilitators had no impact on information sharing and information quality but inter-organizational relationships influenced the information sharing (p = 0.01) and information quality (p = 0.001). To achieve high-quality information sharing, establishing appropriate relationships with the other chain partners is of critical importance. Based on the results of the study, although there was no statistically significant relationship between the intra-organizational facilitators and environmental uncertainty and the information sharing and information quality, top management support, information technology (IT), appropriate selection of supplier and attention to the drug needs of the patients, should not be neglected.
信息管理被认为是供应链管理成功的关键之一。本研究旨在探讨影响药品和医用耗材供应链管理中知识共享和知识质量的因素。本应用研究采用分析调查研究方法进行。研究人群包括78名参与伊斯法罕医科大学教学医院药品和医疗耗材供应链的人员。数据采用问卷的形式收集,问卷的表面效度和内容效度均通过汇集我院卫生信息技术与卫生服务管理学院部分教授的观点进行确认。通过估算Cornbrash的α系数(α=0.93)来验证问卷的信度。数据分析采用多元回归分析方法,SPSS软件版本23。结果表明,环境不确定性和组织内促进因素对信息共享和信息质量没有影响,但组织间关系对信息共享和信息质量有影响(p = 0.01)。为了实现高质量的信息共享,与其他链伙伴建立适当的关系至关重要。从研究结果来看,虽然组织内促进因素和环境不确定性与信息共享和信息质量之间没有统计学意义上的关系,但高层管理的支持、信息技术、供应商的适当选择和对患者药物需求的关注是不可忽视的。
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引用次数: 1
Antifungal Activity of Topical Microemulsion Containing Ziziphus spina-christi L. for the Treatment of Fungal Vaginitis 外用酸枣微乳治疗真菌性阴道炎的抑菌活性研究
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2021-01-01 DOI: 10.22034/IJPS.2020.128484.1673
A. Salimi, M. Shirani
Background: vulvovaginal candidiasis (VVC) caused by Candida albicans and other Candida species are high-risk event in patients admitted to hospital. Ziziphus genus is a rich source of medicinal compounds, effective for the treatment or prevention of some diseases. Objectives: This study aimed to evaluate the antifungal effect of topical microemulsion containing Ziziphus spina-christi L (ZSC) extracts against Candida spp.Methods: Z. Spina-Christi was collected and extracted in a Soxhlet apparatus using the ethanol and methanol solvents. Microemulsions were formulated by varying the composition of surfactant (Tween 80) along with cosurfactant (propylene glycol), oil, and water and were characterized regarding their stability. The microemulsion without extract as placebo and the active microemulsion containing ZSC extract as active formulation were applied to test the antifungal activity against C. albicans, C. parapsilosis and C. krusei using well diffusion test. The optimal microemulsion was selected and then analyzed for average diameter of droplets, pH, viscosity and zeta potential.Results: The microemulsion containing ZSC ethanolic extract had a significant inhibitory effect on the different species of Candida, but the most inhibitory effect was found against C. albicans. Conclusion: The results of this study indicate that the ethanol extract has interesting antimicrobial properties and can used for the treatment of fungal infections. More research is required to check this plant performance to treat the Candidiasis.
背景:由白色念珠菌及其他念珠菌引起的外阴阴道念珠菌病(VVC)是住院患者的高危事件。酸枣属植物是一种丰富的药用化合物来源,对治疗或预防某些疾病有效。目的:研究紫杉树提取物外用微乳对念珠菌的抑菌作用。方法:采集紫杉树提取物,采用索氏提取装置,乙醇和甲醇溶剂对紫杉树进行提取。通过改变表面活性剂(Tween 80)与助表面活性剂(丙二醇)、油和水的组成来配制微乳,并对其稳定性进行了表征。采用孔扩散试验,分别以不含提取物的微乳剂为对照剂和含ZSC提取物的活性微乳剂为活性制剂,研究了ZSC提取物对白色念珠菌、副枯枝念珠菌和克氏念珠菌的抑菌活性。选择最佳微乳液,并对微乳液的平均粒径、pH、粘度和zeta电位进行分析。结果:ZSC乙醇提取物微乳对不同种类念珠菌均有明显的抑制作用,但对白色念珠菌的抑制作用最大。结论:乙醇提取物具有良好的抗菌作用,可用于真菌感染的治疗。需要更多的研究来验证这种植物治疗念珠菌病的性能。
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引用次数: 2
Selective Toxicity of Ag/TiO2 Nanoparticles of Waste Water of industrial factories on muscle Mitochondria Isolated from Solendactylus scallop 工业废水中Ag/TiO2纳米颗粒对扇贝肌肉线粒体的选择性毒性研究
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2020-08-01 DOI: 10.22034/IJPS.2019.106412.1549
Farahnaz Tanbakosazan, P. Derakhshi, P. A. Azar, K. Ashtari, P. Naserzadeh, Enayatollah Seydi, J. Pourahmad
Industrial wastewater is of global concern due to its severe effects on the environment. Compared with municipal wastewater, industrial wastewater generally contains the high concentration of toxic or no biodegradable pollutants. In recently year, scientific showed that scallop could filtration wastewater. Therefore, it was decided to determine the mechanistic toxicity of wastewater contained NPs (Ag and TiO2) towards isolated mitochondria via reliable methods. Isolated muscle scallop mitochondria were obtained by differential ultracentrifugation on before and after exposure to wastewater. Our results showed that two NPs (Ag and TiO2) induced mitochondrial dysfunction via an increase in mitochondrial reactive oxygen species (ROS) generation, lipid peroxidation (LPO) and mitochondrial membrane potential (MMP) collapse. Finally, Ag-NPs and TiO2-NPs have reduced the level of glutathione (GSH) and also induced apoptosis. Our results suggest that wastewater contained NPs -induced toxicity is the result of a disruptive effect on the mitochondrial respiratory chain, increasing the chance of cell death signaling.
工业废水因其对环境的严重影响而引起全球关注。与城市污水相比,工业废水通常含有高浓度的有毒或不可生物降解的污染物。近年来,科学研究表明扇贝可以过滤污水。因此,决定通过可靠的方法来确定含有NP(Ag和TiO2)的废水对分离的线粒体的机制毒性。在暴露于废水之前和之后,通过差速超速离心获得分离的肌肉扇贝线粒体。我们的研究结果表明,两种NP(Ag和TiO2)通过增加线粒体活性氧(ROS)的产生、脂质过氧化(LPO)和线粒体膜电位(MMP)的崩溃来诱导线粒体功能障碍。最后,Ag NPs和TiO2 NPs降低了谷胱甘肽(GSH)的水平,并诱导了细胞凋亡。我们的研究结果表明,含有NPs的废水诱导的毒性是线粒体呼吸链破坏作用的结果,增加了细胞死亡信号的机会。
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引用次数: 0
Potency of Mangosteen Pericarp Extract to Inhibit 38-kDa and Ag85 Protein Secretion by Mycobacterium tuberculosis H37Rv 芒果提取物对结核分枝杆菌H37Rv分泌38kDa和Ag85蛋白的抑制作用
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2020-08-01 DOI: 10.22034/IJPS.2019.102748.1524
D. Nurhidayati, V. Yurina, Eka Riza Maula, Gisselia Eurika Wijaya
Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis. The α-mangostin in mangosteen pericarp extract can inhibit M. tuberculosis growth. This study examined the potency of α-mangostin in mangosteen pericarp extract to inhibit 38-kDa and Ag85 protein secretion from M. tuberculosis H37Rv. The samples used in this study were divided into three independent variable groups (3.125 µg/ml; 6.25 µg/ml; and 12.5 µg/ml α-mangostin in the mangosteen pericarp extract), a positive control group (rifampin), a negative control group (M. tuberculosis H37Rv), and the Garcia® group (trademark of the mangosteen peel extract capsule). HPLC-MS/MS detected that the mangosteen pericarp extract contained 5,984.55 µg/g α-mangostin. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and dot blot analysis were conducted to analyze the profile and specificity of both proteins. This study revealed that 6.25 µg/ml of mangosteen pericarp extract had the greatest potency for inhibiting 38-kDa protein secretion from M. tuberculosis H37Rv, and 12.5 µg/ml mangosteen pericarp extract had greater potency for inhibiting Ag85 protein secretion than did the other doses. Thus, α-mangosteen from mangosteen pericarp extract can inhibit Ag38 and Ag85 secretion.
结核病是由结核分枝杆菌引起的一种传染病。山竹果皮提取物中的α-山竹素能抑制结核分枝杆菌的生长。本研究检测了山竹果皮提取物中的α-山竹素对结核分枝杆菌H37Rv分泌38kDa和Ag85蛋白的抑制作用。本研究中使用的样本分为三个独立变量组(山竹果皮提取物中的3.125µg/ml、6.25µg/ml和12.5µg/mlα-山竹素)、阳性对照组(利福平)、阴性对照组(结核分枝杆菌H37Rv)和Garcia®组(山竹皮提取物胶囊的商标)。HPLC-MS/MS检测山竹果皮提取物中含有5984.55µg/gα-山竹素。采用十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(SDS-PAGE)和斑点印迹分析两种蛋白质的图谱和特异性。这项研究表明,6.25µg/ml的山竹果皮提取物对结核分枝杆菌H37Rv的38kDa蛋白质分泌具有最大的抑制效力,12.5µg/ml的山竹果皮提取物比其他剂量对Ag85蛋白质分泌具有更大的抑制效力。因此,山竹果皮提取物中的α-山竹可以抑制Ag38和Ag85的分泌。
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引用次数: 0
The Effect of Various Penetration Enhancers on the Octyl Methoxycinnamate Permeability: Mechanisms of Action Study 不同渗透促进剂对甲氧基肉桂酸酯渗透性的影响:作用机制研究
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2020-08-01 DOI: 10.22034/IJPS.2019.103550.1531
A. Salimi, E. Moghimipour, Payam Kogani, S. Soleymani
Octyl methoxycinnamate is one of the ingredients in sunscreen products. The main aim of this study was to investigate the effect of different enhancers of in vitro skin permeability of Octyl methoxycinnamate. Octyl methoxycinnamate permeability parameters were evaluated through the whole skin of the rat with and without chemical enhancers including eucalyptus oil, urea, menthol and olive oil by Franz cell diffusion. The effects of enhancers on skin structure were also studied using DSC and FT-IR techniques. The skin prevented the permeability of Octyl methoxycinnamate so that after 24 hours less than 3% of the substance passed through the skin. The results of this study showed that by increasing the time, it is possible to increase the skin permeation and the highest rate of skin absorption were corresponded to olive oil (ERflux=63.074), eucalyptus oil (ERflux=48.78) and menthol (ERflux=33.5), respectively while the least amount of skin absorption was related to urea (ERflux=29.53). Chemical penetration enhancers are substances that interfere with the complex structure of the skin and protein lipids. Two endothermic transitions were obtained at about 67 (Tm1) and 112 ° C (Tm2) in thermogram of the hydrated whole rat skin. Tm1 and Tm2 seems to be due to the melting of the lipids and the irreversible intracellular keratin or melting of the lipid-protein (keratin) complex, respectively. The amount of Tm1, ΔH1 and ΔH2 were decreased by all penetration enhancers compared to the hydrated skin. The FT-IR results suggested the mechanism of increasing absorption effect by lipid fluidization and lipid extraction. All of penetration enhancers used in this study significantly increased the skin permeability of Octyl methoxycinnamate.
甲氧基肉桂酸辛酯是防晒产品的成分之一。本研究的主要目的是研究不同的增强剂对甲氧基肉桂酸辛酯体外皮肤通透性的影响。采用Franz细胞扩散法对添加和不添加桉叶油、尿素、薄荷醇和橄榄油等化学增强剂的大鼠皮肤进行透性评价。用DSC和FT-IR技术研究了增强剂对皮肤结构的影响。皮肤阻止甲氧基肉桂酸辛酯的渗透性,因此24小时后只有不到3%的物质通过皮肤。本研究结果表明,通过延长时间可以增加皮肤渗透,皮肤吸收率最高的分别是橄榄油(ERflux=63.074)、桉树油(ERflux=48.78)和薄荷醇(ERflux=33.5),皮肤吸收率最低的是尿素(ERflux=29.53)。化学渗透增强剂是指干扰皮肤和蛋白质脂质复杂结构的物质。在67 (Tm1)和112°C (Tm2)的热图中,获得了两个吸热转变。Tm1和Tm2似乎分别是由于脂质和不可逆的细胞内角蛋白的融化或脂质-蛋白(角蛋白)复合物的融化。与水合皮肤相比,所有渗透增强剂均降低了Tm1、ΔH1和ΔH2的含量。傅里叶变换红外光谱(FT-IR)分析了脂质流化和脂质萃取提高吸收效果的机理。本研究中使用的所有渗透增强剂都能显著提高甲氧基肉桂酸辛酯的皮肤渗透性。
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引用次数: 4
The Combination of Salbutamol Nebulizer and Oral Procaterol to the Indonesian Children with Pneumonia 沙丁胺醇雾化器联合口服Procaterol治疗印尼肺炎患儿疗效观察
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2020-07-01 DOI: 10.22034/IJPS.2019.104391.1533
E. Darmawan, L. Kusumawati
This study aimed to examine the effectiveness of combining salbutamol nebulizer and oral procaterol compared to only oral procaterol on the respiratory rate, temperature (fever), spasm, cough frequency, thoracic retraction, and length of stay (LOS) among young children with pneumonia. This prospective cohort study included 48 consecutive sampling subjects with pneumonia in Indonesia. The subjects were classified based on the type of therapy they received: intervention group used the combination of salbutamol nebulizer and oral procaterol therapy (n=24 subjects) and the control group received oral procaterol only (n=24). The result showed that the combination therapy salbutamol nebulizer and oral procaterol was more effective than the administration of oral procaterol only with the rate of clinical change. Combination therapy nebulized salbutamol and oral procaterol significantly respiratory rate (p=0.006) and temperature (fever) (p=0.002) compared to the only oral procaterol. The combination had clinical change in reducing spasm, cough frequency, thoracic retraction, and length of stay (LOS) however there are was no significant effect of this combination in reducing spasm (p=0.348), cough frequency (p=0.964), thoracic retraction (p=0.666), and length of stay (LOS) (p=0.192) compared to the only oral procaterol among the Indonesian children with pneumonia.
本研究旨在检验沙丁胺醇喷雾器和口服丙甾醇联合使用与仅口服丙甾醇相比对幼儿肺炎患者呼吸频率、体温(发烧)、痉挛、咳嗽频率、胸部收缩和住院时间(LOS)的有效性。这项前瞻性队列研究包括48名印度尼西亚肺炎患者。根据受试者接受的治疗类型对受试者进行分类:干预组使用沙丁胺醇喷雾器和口服丙卡特罗治疗相结合(n=24名受试者),对照组仅接受口服丙卡特洛治疗(n=24)。结果表明,沙丁胺醇喷雾器与口服丙甾醇的联合治疗仅在临床变化率方面比口服丙甾醇更有效。雾化吸入沙丁胺醇和口服丙甾醇的联合治疗与单独口服丙甾醇相比,呼吸频率(p=0.006)和体温(发烧)(p=0.002)显著提高。联合用药在减少痉挛、咳嗽频率、胸廓回缩和住院时间(LOS)方面有临床变化,但在印度尼西亚肺炎儿童中,与唯一口服普鲁卡因相比,联合用药在减轻痉挛(p=0.348)、咳嗽频率(p=0.964)、胸廓缩回(p=0.666)和住院时间上没有显著效果。
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引用次数: 0
Cytotoxic effects of hydroxy coumarin derivations to neuroblastoma N2a cells 羟基香豆素衍生物对神经母细胞瘤N2a细胞的细胞毒性作用
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2020-07-01 DOI: 10.22034/IJPS.2020.114372.1608
J. Sargolzaei, H. Sadeghian, Sanaz Golahmadi, M. Soukhtanloo
Neuroblastoma is one of the nervous system cancers, which approximately consists of 9% of childhood cancers. In this study, we evaluated the toxic effects of prenyl hydroxy coumarin derivatives on apoptosis of the neuroblastoma cell line N2A. N2a cells were cultured in DMEM medium, then the effects of different concentrations (0.75–200 μg/mL) of prenyl hydroxy coumarin derivatives during 24, 48, and 72 h were studied. Cell viability was quantified by MTT assay; apoptotic cells were determined using PI staining of DNA fragmentation by Flow cytometry (sub-G1 peak). The toxic effect of 3- farnesyl oxi coumarin in the N2A cell starts at 6.25 μg/ml and increases relatively depending on rising in concentration and time. The toxicity and apoptosis in 3- farnesyl and 6- farnesyl oxi coumarin is more than 3- Geranyl and 6-Geranyl oxi coumarin. Prenyl hydroxy coumarin induces peak sub-G1in flow cytometry compared to the control group, indicating prenyl hydroxy coumarin-induced toxicity, which is involved in apoptotic cell death. Different concentration of hydroxy coumarin derivatives (0.75-200) µg/mL in lymphocytes, did not induce any anti-proliferative effect in 24 h. In conclusion, prenyl hydroxy coumarin derivatives induce apoptotic effects in the N2A cell line. Thus prenyl hydroxy coumarin derivatives sound to be chemotherapeutic agents for the neuroblastoma cancer cells.
神经母细胞瘤是一种神经系统癌症,约占儿童癌症的9%。在这项研究中,我们评估了戊烯基羟基香豆素衍生物对神经母细胞瘤细胞系N2A细胞凋亡的毒性作用。在DMEM培养基中培养N2a细胞,观察不同浓度(0.75 ~ 200 μg/mL)戊烯基羟基香豆素衍生物对N2a细胞生长24、48、72 h的影响。MTT法测定细胞活力;流式细胞术DNA片段PI染色检测凋亡细胞(亚g1峰)。3-法尼基氧香豆素对N2A细胞的毒性作用从6.25 μg/ml开始,随浓度和时间的增加而相对增强。3-法尼基香豆素和6-法尼基氧香豆素的毒性和细胞凋亡高于3-香叶基香豆素和6-香叶基氧香豆素。与对照组相比,戊烯基羟基香豆素在流式细胞术中诱导亚g1峰,表明戊烯基羟基香豆素诱导的毒性与凋亡细胞死亡有关。不同浓度羟基香豆素衍生物(0.75 ~ 200µg/mL)对淋巴细胞24 h无抗增殖作用。由此可见,戊烯基羟基香豆素衍生物可诱导N2A细胞株凋亡。因此,戊烯基羟基香豆素衍生物有望成为神经母细胞瘤癌细胞的化疗药物。
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引用次数: 1
The study of silymarin release kinetic in free and hydrogel bound micellar forms: a qualitative and quantitative analysis using RP-HPLC 水飞蓟素游离胶束和水凝胶胶束释放动力学研究:RP-HPLC定性和定量分析
Q4 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2020-07-01 DOI: 10.22034/IJPS.2019.112151.1595
M. Najafzadeh, S. Sajjadi, A. Z. Moghaddam, M. Fereidouni
Silymarin is a safe herbal medicine; however, it has some undesirable properties such as short half-life and poor aqueous solubility. To the best of our knowledge, this study is the first to report utilizing a dual-drug delivery system (DDDS) to enhance the release profile of silymarin from both micelles and hydrogels. In this experimental study, the release profile of micellar silymarin and micelle-hydrogel bounded silymarin during 21 days was examined using Knauer K2600A liquid chromatography. The calibration curve was plotted using the peak-areas of the silymarin at different concentrations. The RP-C18 column allowed a good separation of the components of standard silymarin. LOD and LOQ were 16.5 and 55.02 μg/ml, respectively. The in vitro release profiles of the two compounds showed a rapid release of silymarin, especially in the absence of hydrogel. The cumulative release graph revealed that the hydrogel-bound form has more constant release kinetics than the free micelle form; this means that the hydrogel-bound form may sustain for longer durations. In this study, a dual-drug delivery system based on hydrogel/micelle composites was introduced. The results showed that Puramatrix hydrogel plays an important role in the constant release of silymarin. Furthermore, the RP-HPLC method presented in this study can be used by other researchers to overcome the difficulties associated with the in-vitro separation and quantification of silymarin.
水飞蓟素是一种安全的草药;然而,它具有一些不期望的特性,例如半衰期短和水溶性差。据我们所知,本研究首次报道了利用双给药系统(DDDS)来增强水飞蓟素从胶束和水凝胶中的释放特性。在本实验研究中,使用Knauer K2600A液相色谱法检测了胶束水飞蓟素和胶束水凝胶结合水飞蓟宾在21天内的释放特性。使用不同浓度的水飞蓟素的峰面积绘制校准曲线。RP-C18柱可以很好地分离标准水飞蓟素的组分。LOD和LOQ分别为16.5和55.02μg/ml。这两种化合物的体外释放谱显示水飞蓟素的快速释放,特别是在没有水凝胶的情况下。累积释放图显示,水凝胶结合形式比游离胶束形式具有更恒定的释放动力学;这意味着水凝胶结合的形式可以维持更长的持续时间。本研究介绍了一种基于水凝胶/胶束复合材料的双给药系统。结果表明,Puramatrix水凝胶在水飞蓟素的持续释放中起着重要作用。此外,本研究中提出的RP-HPLC方法可供其他研究人员使用,以克服与水飞蓟素的体外分离和定量相关的困难。
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Iranian Journal of Pharmaceutical Sciences
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