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Synthesis, characterization and antioxidant activities of some novel oxime derivatives 一些新型肟类衍生物的合成、表征及抗氧化活性研究
Pub Date : 2021-09-03 DOI: 10.15406/ppij.2021.09.00343
Saim Topçu, T. Ozen, A. Bal, M. Taş
In this study, nine novel compounds were synthesized in the reaction of ω-chloro- isonitrosoacetophenone with 2-chloro-4-methylaniline, 2-chloro-5-methylaniline, 2-chloro-6-methylaniline, 3-chloro-2-methylaniline, 4-chloro-3-methylaniline, 5-chloro-2-methylaniline, 2,3-dichloroaniline, 2,4-dichloroaniline and 3,5-dichloroaniline resulting for C1 - C9 , respectively. Compounds C1 , C4 - C7 and C9 were handled in single crystalline forms, which the structures were also investigated by X-ray single crystal analysis. Compounds were evaluated for their nonenzymatic lipid peroxidation inhibition, antioxidant and antiradical activities and compared with standard agents at 5, 50, and 100μM concentrations. Compounds are exhibited good antioxidant activities and lipid peroxidation compared to standards (BHA, TBHQ, BHT and trolox). Due to the best of our knowledge for novel oxime compounds, this study is the first report of promising antioxidants to scavenge oxidative stress conditions.
本研究以ω-氯-异硝基苯乙酮为原料,分别与2-氯-4-甲基苯胺、2-氯-5-甲基苯胺、2-氯-6-甲基苯胺、3-氯-2-甲基苯胺、4-氯-3-甲基苯胺、5-氯-2-甲基苯胺、2,3-二氯苯胺、2,4-二氯苯胺和3,5-二氯苯胺反应合成了9个新化合物,分别为C1 - C9。化合物C1、C4 - C7和C9以单晶形式处理,并对其结构进行了x射线单晶分析。在5 μ m、50 μ m和100μM浓度下,对化合物的非酶性脂质过氧化抑制、抗氧化和抗自由基活性进行了评价。与标准化合物(BHA, TBHQ, BHT和trolox)相比,化合物表现出良好的抗氧化活性和脂质过氧化活性。由于我们对新型肟类化合物的了解,这项研究是第一个有希望清除氧化应激条件的抗氧化剂的报告。
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引用次数: 2
Survival of gefitinib treated advanced non-small cell lung cancer patients harbouring EGNR mutations 吉非替尼治疗携带EGNR突变的晚期非小细胞肺癌患者的生存率
Pub Date : 2021-08-24 DOI: 10.15406/ppij.2021.09.00342
N. Bangash, N. Ismail, N. Hashim
Context: The addition of gefitinib to first-line chemotherapy treatment in EGFR mutated patients may lead to improvement in overall survival in advanced non-small cell lung cancer (NSCLC). Aims: This study aimed to investigate the relationship of epidermal growth factor receptor (EGFR) mutations with clinical features of non-small cell lung cancer patients and to determine overall survival (OS) of EGFR mutated adult NSCLC patients after gefitinib treatment. Settings and design: A retrospective observational study was done for 93 advanced NSCLC adult Malaysian patients at Radiotherapy and Oncology Clinic, Hospital Kuala Malaysia. Methods and material: Demographic and medical data were recorded from the patient’s medical record file. Statistical analysis used: Statistical analysis was performed using SPSS version 21.0. Kaplan-Meier, log-rank test and Cox regression analysis have been performed. Results: There were 93 adult NSCLC Malaysian patients who were examined for EGFR gene mutations. Approximately 35.48% (33/93) of the patients were detected to have EGFR mutations in their tumour tissue DNA. EGFR mutations were commonly observed in females, adenocarcinoma, non-smokers, stage IV NSCLC and patients taking first-line gefitinib treatment. Positive EGFR status of adult NSCLC patients was independently associated with intake of gefitinib therapy. There were 19 patients who received 250 mg/day gefitinib as the first-line treatment. The patients with positive EGFR status had increased median survival time as compared than those with negative EGFR status (834.863 vs 246 days). Conclusions: Advanced NSCLC patients with mutated EGFR had a longer median survival time after first- line gefitinib treatment. EGFR mutation is an independent prognostic factor for adult NSCLC patients.
背景:EGFR突变患者在一线化疗中加入吉非替尼可能会改善晚期非小细胞肺癌(NSCLC)患者的总生存期。目的:本研究旨在探讨表皮生长因子受体(EGFR)突变与非小细胞肺癌患者临床特征的关系,确定EGFR突变的成人NSCLC患者在吉非替尼治疗后的总生存期(OS)。背景和设计:对马来西亚吉隆坡医院放射肿瘤学诊所的93名晚期非小细胞肺癌成年患者进行了回顾性观察研究。方法和材料:从患者的病历档案中记录人口统计和医疗资料。采用统计分析:采用SPSS 21.0版本进行统计分析。Kaplan-Meier检验、log-rank检验和Cox回归分析。结果:有93名马来西亚成年NSCLC患者进行了EGFR基因突变检查。大约35.48%(33/93)的患者在肿瘤组织DNA中检测到EGFR突变。EGFR突变常见于女性、腺癌、非吸烟者、IV期非小细胞肺癌和接受一线吉非替尼治疗的患者。成人非小细胞肺癌患者EGFR阳性状态与吉非替尼治疗的摄入量独立相关。有19例患者接受250mg /d吉非替尼作为一线治疗。与EGFR阴性患者相比,EGFR阳性患者的中位生存时间增加(834.863天vs 246天)。结论:EGFR突变的晚期非小细胞肺癌患者在一线吉非替尼治疗后的中位生存时间更长。EGFR突变是成人非小细胞肺癌患者的独立预后因素。
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引用次数: 0
Biochemical computational therapeutic approach towards the discovery of natural product noncovalent inhibitors of SARS-CoV-2 RNA-dependent RNA polymerase 寻找SARS-CoV-2 RNA依赖性RNA聚合酶天然产物非共价抑制剂的生化计算治疗方法
Pub Date : 2021-08-09 DOI: 10.15406/ppij.2021.09.00341
S. Sharaf
COVID-19 remains to be a disastrous pandemic chaotically affecting our lives to this day. This disease is caused by the new coronavirus, SARS-CoV-2. Like other coronaviruses and RNA viruses, SARS-CoV-2 replication and transcription largely relies on the activity of RNA-dependent RNA polymerase (RdRp). This enzyme produces a complementary RNA molecule from a template one. The necessity of this enzyme for the viral lifecycle has made it an attractive target for combating many RNA viruses. The famous RdRp inhibitor remdesivir has been granted use for hospitalized COVID-19 patients. In this work, we investigate a library of natural products with the aim of discovering new RdRp inhibitors for potential therapeutic purposes. The study comprises extensive biochemical docking and molecular filtration of the database where the resultant hits were evaluated for other molecular properties and pharmacophoric features. Two hit compounds were discovered to be potential therapeutic RdRp inhibitors, Sennoside B and Ginsenoside B2. The metabolites of these compounds were also predicted to investigate whether they would possess extended activity against the enzyme.
直到今天,COVID-19仍然是一场灾难性的大流行,混乱地影响着我们的生活。这种疾病是由新型冠状病毒SARS-CoV-2引起的。与其他冠状病毒和RNA病毒一样,SARS-CoV-2的复制和转录在很大程度上依赖于RNA依赖性RNA聚合酶(RdRp)的活性。这种酶从模板分子中产生互补的RNA分子。这种酶对病毒生命周期的必要性使其成为对抗许多RNA病毒的有吸引力的靶标。著名的RdRp抑制剂remdesivir已被批准用于住院的COVID-19患者。在这项工作中,我们研究了一个天然产物库,目的是发现用于潜在治疗目的的新的RdRp抑制剂。该研究包括对数据库进行广泛的生化对接和分子过滤,从而评估结果命中的其他分子特性和药效特征。两种hit化合物被发现是潜在的治疗RdRp抑制剂,Sennoside B和人参皂苷B2。这些化合物的代谢产物也被预测,以研究它们是否具有对酶的扩展活性。
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引用次数: 0
Investigation of structural differences of silica, silver and iron nanoparticles on the proliferation of human lung cancer 二氧化硅、银和铁纳米颗粒结构差异对人肺癌增殖的影响
Pub Date : 2021-07-26 DOI: 10.15406/ppij.2021.09.00339
S. Karakurt, Sureyya Erturk, Irem Sobaci, Irem Bereket, Sadik Seker, Gamze Polat
Lung cancer, one of the critical respiratory system diseases, has the highest morbidity rate (14.3%) among men and third in women (8.4%) worldwide. Severe side effects and ineffectiveness of chemotherapeutic drugs lead to the investigation of new functional agents. One of the latest strategies against the proliferation of cancer is using nanoparticles. On the other hand, the natural composition of those particles significantly affects their efficacy. This study aimed to investigate the effects of the structural differences of silver, iron, and silica nanoparticles on lung cancer cells. All nanoparticles were synthesized with an average size of 40 nm, and their particle sizes were characterized by Dynamic Light Scattering (DLS) and Transmission electron microscopes (TEM). The cell viability and cytotoxic potential of nanoparticles were investigated using the Alamar Blue reagent. The ratio of the alive and dead cells was determined by the Automated Cell Counter using Trypan Blue. Localization of nanoparticles in the cells was visualized floresans microscope. Within the nanoparticles, the silica nanoparticle (SiNPs) showed the highest cytotoxicity in the lung cancer cell line with an IC 50 value of 151.3μg/mL in a dose-dependent manner. Neither FeNPs nor AgNPs showed significant toxic effects on the proliferation of A549 cells (>250µg/mL). SiNPs were localized mainly in the cytoplasm. SiNPs have seen higher catalytic activity than AgNPs and FeNPs. The functionalization of the surface of silica nanoparticles and the ability to bind functional groups or drug candidates both on the surface and inside make them an essential agent in cancer treatments.
肺癌是严重的呼吸系统疾病之一,在全世界男性中发病率最高(14.3%),在女性中发病率第三(8.4%)。化疗药物的严重副作用和无效导致了对新功能药物的研究。对抗癌症扩散的最新策略之一是使用纳米颗粒。另一方面,这些颗粒的天然成分会显著影响它们的功效。本研究旨在探讨银、铁和二氧化硅纳米颗粒结构差异对肺癌细胞的影响。合成的纳米颗粒平均粒径为40 nm,并通过动态光散射(DLS)和透射电子显微镜(TEM)对其粒径进行了表征。用Alamar Blue试剂检测纳米颗粒的细胞活力和细胞毒性。用台盼蓝自动细胞计数仪测定活细胞和死细胞的比例。显微镜下观察纳米颗粒在细胞中的定位。其中,二氧化硅纳米颗粒(SiNPs)对肺癌细胞系的细胞毒性最高,其ic50值为151.3μg/mL,并呈剂量依赖性。FeNPs和AgNPs对A549细胞增殖均无明显毒性作用(>250µg/mL)。sinp主要定位于细胞质中。SiNPs的催化活性高于AgNPs和FeNPs。二氧化硅纳米颗粒表面的功能化以及在表面和内部结合官能团或候选药物的能力使其成为癌症治疗中必不可少的药物。
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引用次数: 1
Formulation and evaluation of peel-off gel mask from whole milk yogurt and seaweed (Eucheuma cottonii) as antioxidants sources 以全脂牛奶、酸奶和紫菜为抗氧化剂的可剥离凝胶面膜的配方和评价
Pub Date : 2021-07-22 DOI: 10.15406/ppij.2021.09.00338
Ira Adiyati Rum, Husnul W Suherman, Idar K
Skin needs care to avoid premature aging. One of them is treatment with natural-based masks that have antioxidant activity. This study aims to see the antioxidant potential of various concentrations of natural ingredients yogurt and seaweed Eucheuma cottonii as active substances in the manufacture of peel-off gel masks. The method used in this research is the fermentation method for making yogurt, stability test for 28 days at room temperature and antioxidant test with DPPH, to determine the antioxidant power of the five variations of the mask formulation by measuring the IC50 value obtained by reading the absorbance with UV Spectrophotometer -Vis. The results obtained from this study are Formula 4 (F4) has the lowest IC50 value of 18.647 where the IC50 value can be categorized as an antioxidant with very strong strength. The results of the stability test can be stated that the preparation remains stable at room temperature storage for 28 days. The conclusion from the results of this study is that F4 (yogurt: seaweed 1:1) has the highest antioxidant activity strength among other formulations.
皮肤需要保养以避免过早老化。其中之一是使用具有抗氧化活性的天然面膜。本研究旨在观察不同浓度的天然成分酸奶和海藻真毛草作为活性物质在剥脱凝胶面膜生产中的抗氧化潜力。本研究采用发酵制酸奶的方法,室温稳定性试验28天,DPPH抗氧化试验,通过紫外分光光度计-Vis读取吸光度所得的IC50值来测定五种变化的掩膜配方的抗氧化能力。本研究得出的结果是,公式4 (F4)的IC50值最低,为18.647,IC50值可归类为强度很强的抗氧化剂。稳定性试验结果表明,该制剂在室温保存28天内保持稳定。本研究结果表明,F4(酸奶:海藻1:1)在其他配方中具有最高的抗氧化活性强度。
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引用次数: 6
Stringent isolator technology when handling highly pathogenic BSL-4 materials 处理高致病性BSL-4材料时采用严格的隔离技术
Pub Date : 2021-07-09 DOI: 10.15406/PPIJ.2021.09.00337
D. Meyer
A BSL-4 laboratory is extremely isolated, in negative pressureoften located in a separate building or in an isolated and restricted zone of the building. The laboratory also features a dedicated supply and exhausts air, as well as protected vacuum lines and reproducible decontamination systems. What alternative with the same separation technologies, knowing that each piece of technology has to be validated prior and after use.
BSL-4实验室是极度隔离的,处于负压下,通常位于单独的建筑物或建筑物的隔离和限制区域。该实验室还设有专用的供气和排气系统,以及受保护的真空管道和可复制的净化系统。在知道每一项技术都必须在使用前后进行验证的情况下,使用相同的分离技术有什么替代方案呢?
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引用次数: 0
Evaluation of human peptide/histidine transporter 1 (hPHT1/SLC15A4) function: transport kinetics utilizing a HPHT1 shRNA stably transfected knockdown in the hCMEC/D3 blood-brain barrier cell line 人多肽/组氨酸转运蛋白1 (hPHT1/SLC15A4)功能的评估:在hCMEC/D3血脑屏障细胞系中利用hPHT1 shRNA稳定转染敲低的转运动力学
Pub Date : 2021-06-18 DOI: 10.15406/ppij.2021.09.00335
G. Knipp, D. Lindley, Stephen M. Carl, Stephanie A. Mowery, W. Roth
Abbreviations: ABC, ATP-binding cassette; A, apical; B, basolateral; BLQ, below the limit of quantitation; EGM, endothelial growth medium; GAPDH, glyceraldehyde-3 phosphate dehydrogenase; GI, gastrointestinal; HBSS, Hank’s balanced salt solution; hPepT, human oligopeptide transporter; hPHT, human peptide/histidine transporter; MES, 2-(N-morpholino)ethanesulfonic acid; MDR, multidrug resistance; MRP, multidrug resistance-like protein; qRT-PCR, quantitative reverse transcriptase-polymerase chain reaction; P-gp, P-glycoprotein; POT, proton-dependent oligopeptide transporter; RP L13a, ribosomal protein L13a; SLC, solute carrier transporter
缩写:ABC, atp结合盒;一个顶端;B,基底;BLQ,低于定量限度;EGM,内皮生长培养基;GAPDH,甘油醛-3磷酸脱氢酶;胃肠道、肠胃;HBSS,汉克平衡盐溶液;hPepT,人寡肽转运蛋白;hPHT,人肽/组氨酸转运蛋白;MES, 2-(N-morpholino)乙磺酸;MDR,耐多药;MRP,多药耐药样蛋白;定量逆转录聚合酶链反应;P-gp 22;质子依赖性寡肽转运蛋白;RP L13a,核糖体蛋白L13a;溶质载流子输运体
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引用次数: 0
Stevens-Johnson syndrome: relation with phenytoin and carbamazepine associated with HLA and CYP polymorphism in Colombia 史蒂文斯-约翰逊综合征:与哥伦比亚苯妥英和卡马西平与HLA和CYP多态性相关的关系
Pub Date : 2021-06-11 DOI: 10.15406/ppij.2021.09.00334
C. Parga-Lozano, Nohemi Santodomingo
The genetic polymorphisms of the Human Leukocyte Antigens (HLA) and Cytochromes P450 (CYP) CYP2C19 and CYP2C9 have been proposed as key elements for susceptibility to antiepileptic drugs such as Phenytoin (PHT) and Carbamazepine (CBZ). These hepatic isoenzymes and HLA´s exhibit genetic polymorphism with interindividual variability in catalytic activity. Stevens-Johnson Syndrome (SJS) is one of the idiosyncratic adverse effects related to PHT and CBZ. The aim of this work is to relate the polymorphisms of the HLA and CYP alleles with the Stevens- Johnson syndrome caused by phenytoin and carbamazepine in the Amerindian population of Colombia. Methodology: A systematic search was carried out in Clinical Key, Pro Quest and PubMed, the results were tabulated and organized according to their expression to be analyzed by means of the MEGA7 software, using Allele Frequencies to know the allelic frequency of HLA in the Colombian Amerindian population. Results: It was found that the increased risk of Stevens- Johnson syndrome by Phenytoin and Carbamazepine was significantly linked with HLA-A*23: 01, HLA-A*30: 01, HLA-A*30: 02, HLA-A*03:01, HLA-A*11: 01, HLA-A*26: 01, HLA-A*29: 02, HLA-A*68: 01, HLA-A*02: 01, HLA-A*02:22 relating HLA-B*15: 02 and HLA-B*51: 01 as a risk factor and HLA-A*24: 02 as a protective marker for SJS. In the population studied in this work, the presence of the alleles HLA-A*23:01, HLA-A*30:01, HLA-A*30:02, HLA-A*03:01, HLA-A*11:01, HLA-A*26:01, and HLA-A*24:02, like CYP2C9*3 and CYP2C19.
人类白细胞抗原(HLA)和细胞色素P450 (CYP)、CYP2C19和CYP2C9的遗传多态性被认为是对苯妥英(PHT)和卡马西平(CBZ)等抗癫痫药物易感性的关键因素。这些肝脏同工酶和HLA表现出基因多态性,具有催化活性的个体差异。史蒂文斯-约翰逊综合征(SJS)是与PHT和CBZ相关的特殊不良反应之一。这项工作的目的是将HLA和CYP等位基因多态性与哥伦比亚美洲印第安人苯妥英和卡马西平引起的史蒂文斯-约翰逊综合征联系起来。方法:系统检索Clinical Key、Pro Quest和PubMed,将结果按表达进行制表整理,利用MEGA7软件进行分析,利用等位基因频率(Allele Frequencies)了解哥伦比亚美洲印第安人HLA等位基因频率。结果:发现苯托英和卡马西平增加Stevens- Johnson综合征的风险与HLA-A* 23:01、HLA-A* 30:01、HLA-A* 30:02、HLA-A*03:01、HLA-A* 11:01、HLA-A* 26:01、HLA-A* 29:02、HLA-A* 68:01、HLA-A*02:22相关,其中HLA-B* 15:02和HLA-B* 51:01是SJS的危险因素,HLA-A* 24:02是SJS的保护标志物。在本研究人群中,存在等位基因HLA-A*23:01、HLA-A*30:01、HLA-A*30:02、HLA-A*03:01、HLA-A*11:01、HLA-A*26:01和HLA-A*24:02,如CYP2C9*3和CYP2C19。
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引用次数: 0
Knowledge, attitude, practice, and pharmaceutical outcomes of type 2 diabetes mellitus selfmanagement among patients in Makkah Region, Saudi Arabia 沙特阿拉伯麦加地区2型糖尿病患者自我管理的知识、态度、行为和药物结局
Pub Date : 2021-06-07 DOI: 10.15406/ppij.2021.09.00333
S. Sharaf
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引用次数: 5
Risk indicators in tapentadol use: opportunities to improve outcomes with a personal pharmaceutical care approach in community pharmacies 他他多使用的风险指标:社区药房个人药物护理方法改善结果的机会
Pub Date : 2021-05-25 DOI: 10.15406/PPIJ.2021.09.00331
C. R. Armendáriz, Veronica Saray Hernandez Garcia, Daida Alberto Armas, I. Bethencourt, A. H. D. L. Torre
Opioids have historically been the pharmacological choice in the treatment of moderate to severe pain of oncological and chronic origin but they have also become a growing and controversial tool in the treatment of non-oncological pain that requires a risk/ benefit evaluation. The present study focuses on the opioid tapentadol, the newest opioid considered highly effective in treating cancer and non-cancer pain. According to the WHO Collaborating Center for Drugs Statistics Methodology, the stated Tapendatol Defined Daily Dose (DDD) for oral administration is 400 mg but the prescribed doses range from 100 mg/day in patients without previous opioid treatments up to a maximum of 600 mg/ day. However, the DDD is a unit of measurement that does not have to reflect the prescribed daily dose (PDD) because therapeutic doses usually differ from DDDs by taking into account individual patient considerations and pharmacokinetic conditions. This retrospective observational study in a community pharmacy on
阿片类药物历来是治疗肿瘤和慢性来源的中度至重度疼痛的药物选择,但它们也成为治疗非肿瘤疼痛的一种日益增长和有争议的工具,需要进行风险/收益评估。目前的研究重点是阿片类药物他他多,最新的阿片类药物被认为对治疗癌症和非癌症疼痛非常有效。根据世卫组织药物统计方法合作中心,规定的口服Tapendatol限定日剂量(DDD)为400毫克,但处方剂量范围从以前未接受过阿片类药物治疗的患者的100毫克/天到最多600毫克/天。然而,DDD是一种测量单位,不必反映处方日剂量(PDD),因为治疗剂量通常与DDDs不同,考虑到个体患者的考虑和药代动力学条件。本回顾性观察研究在社区药房
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引用次数: 0
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Pharmacy & Pharmacology International Journal
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