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Spontaneous pneumomediastinum in early postbirth period (clinical observation) 产后早期自发性纵隔气肿(临床观察)
Pub Date : 2020-08-14 DOI: 10.15406/ppij.2020.08.00301
Kukharchyk Yv, Dovnar Ri, Kukharchyk, H. Abdullahi
the antenatal clinic in the city of Grodno in the period of 10–11 weeks. A full clinical and laboratory examination was carried out, consulted by specialists in accordance with the clinical protocols of the Ministry of Health of the Republic of Belarus “Medical observation and medical care for women in obstetrics and gynecology” № 17 dated 02/19/2018. When performing ultrasound screening studies, deviations from the norm were not detected. The course of this pregnancy was complicated by the threat of termination: at 28-30 weeks, tocolytic therapy was carried out in a hospital. At 39-40 weeks, the patient was admitted to the public health institution “City Clinical Emergency Hospital of Grodno” with a diagnosis of I period of the first emergency birth in the head presentation in the gestational age of 278 days; premature Summary The article describes a clinical case of spontaneous pneumomediastinum in a 20-year-old patient in the early postpartum period. The diagnosis was made during the first hour of the postpartum period based on the patient’s complaints and confirmed by instrumental research methods. Analysis of the presented clinical situation suggested a possible cause of the resulting pathology, which are the inferiority of the lung tissue due to severe pneumonia and the presence of indirect signs of connective tissue dysplasia.
在格罗德诺市产前诊所工作10-11周。根据白俄罗斯共和国卫生部2018年2月19日颁布的《妇产科妇女医学观察和医疗护理》第17号临床协议,在专家的咨询下进行了全面的临床和实验室检查。在进行超声筛查研究时,未发现与标准的偏差。妊娠过程因终止妊娠的威胁而复杂化:在28-30周时,在医院进行了溶胎治疗。39-40周时,患者被送往公共卫生机构“格罗德诺市临床急救医院”,诊断为第一次急诊分娩,胎龄278天;本文报道一例20岁的自发性纵隔气肿患者发生在产后早期。根据患者的主诉,在产后1小时内做出诊断,并通过仪器研究方法证实。对所呈现的临床情况进行分析,提出了导致病理的可能原因,即由于严重肺炎导致的肺组织劣等以及存在结缔组织发育不良的间接迹象。
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引用次数: 0
Molecular modeling and in silico characterization of mycobacterial Rv3101c and Rv3102c proteins: prerequisite molecular target in cell division 分枝杆菌Rv3101c和Rv3102c蛋白的分子建模和硅表征:细胞分裂的先决分子靶点
Pub Date : 2020-07-31 DOI: 10.15406/PPIJ.2020.08.00300
Amjad Beg, F. Athar
Mycobacterium tuberculosis H 37 Rv ( M. tuberculosis ) genetic evaluation found various conditional mutants that are being unsuccessful in surviving in non-permissive temperature or need enriched sources for growing in non-adaptive conditions. In M. tuberculosis basically, these mutants refer to as Filamentous Temperature Sensitive (FTS) gene family which have Rv3102c , Rv3610c , Rv2748c , Rv2151c , Rv2154c , Rv3101c , Rv2921c and Rv2150cproteins that are involved in major processes like cell division, cell growth and cell signalling.This manuscript provides a straightforward conduit towards finding the exact role of Rv3101c and Rv3102c genes in cellular cell divisionand survival of this bacterium by using computational approaches. The physiochemical properties shows both the proteins are stable and protein-protein interaction shows Rv2150c R2151c, smpB , Rv3104c and Rv2921c commonly interacted with each other but Rv3101c protein, a transmembrane protein which has four transmembrane helices which provide a clue for these proteins that act in various signalling cascades and protein exporting system. The protein phosphorylation play important role in several cellular processes and in Rv3101c phosphorylation occurs at Thr75, Ser89 and in Rv3102c phosphorylation occurs at residues Thr54, Thr166, Thr173, Ser174, Ser212 and Tyr225. The predicted structure was validated by SAVES metaserver and Ramachandran plot shows above 90% residues were present in the allowed region. In the prediction of B-cell and T-cell on Rv3101c and Rv3102c, protein antigen presentation and antibody binding properties were determined. These epitopes can be used to develop more effective vaccines and identify neutralizing antibodies. The mutation identification on the F126 and F1397 in Rv3101c whereas in Rv3102c on position F45 cause a drastic loss in inter-atomic interactions. As Rv3101c and Rv3102c proteins are essential class of proteins in M. tuberculosis, therefore, understanding of this class is crucial for analyzing cell division mechanism of this bacterium and thus help in clarifying its pathogenesis mechanism inside the host.
结核分枝杆菌h37 Rv(结核分枝杆菌)遗传评估发现,各种条件突变体在不允许的温度下无法存活,或者需要丰富的来源才能在非适应条件下生长。在结核分枝杆菌中,这些突变体基本上是指丝状温度敏感(FTS)基因家族,其具有Rv3102c, Rv3610c, Rv2748c, Rv2151c, Rv2154c, Rv3101c, Rv2921c和rv2150c蛋白,参与细胞分裂,细胞生长和细胞信号传导等主要过程。该手稿提供了一个直接的渠道,通过使用计算方法,找到Rv3101c和Rv3102c基因在细胞细胞分裂和这种细菌的存活中的确切作用。Rv2150c、R2151c、smpB、Rv3104c和Rv2921c通常相互作用,但Rv3101c蛋白是一种具有四个跨膜螺旋的跨膜蛋白,这为这些蛋白在各种信号级联反应和蛋白质输出系统中的作用提供了线索。蛋白磷酸化在多个细胞过程中发挥重要作用,在Rv3101c中,磷酸化发生在Thr75、Ser89位点,在Rv3102c中,磷酸化发生在Thr54、Thr166、Thr173、Ser174、Ser212和Tyr225位点。通过savesmetaserver对预测结构进行了验证,Ramachandran图显示在允许区域存在90%以上的残基。在预测b细胞和t细胞对Rv3101c和Rv3102c的作用时,测定了蛋白抗原呈递和抗体结合特性。这些抗原表位可用于开发更有效的疫苗和识别中和抗体。在Rv3101c的F126和F1397上发现突变,而在Rv3102c的F45位置上发现突变,导致原子间相互作用的严重损失。由于Rv3101c和Rv3102c蛋白是结核分枝杆菌中必不可少的一类蛋白,因此,了解这类蛋白对于分析结核分枝杆菌的细胞分裂机制以及阐明其在宿主内的发病机制至关重要。
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引用次数: 3
Background on the control of the cattle tick R. (B.) microplus and the use of coumarin substances as an alternative 牛蜱病的防治背景及香豆素物质的替代应用
Pub Date : 2020-07-30 DOI: 10.15406/PPIJ.2020.08.00299
C. Rodríguez-Molano, S. Torres, Laura-Estefania Nino Monrroy
Rhicephalus (Boophilus) microplus (R. (B.) microplus) is a hematophagous ectoparasite of Indo-Asian origin that is found in tropical and subtropical regions, which has expanded its geographical distribution as a result of climate change, migrating to northern latitudes and higher altitudes. This species creates estimated economic losses between $13.9 and 18.7 million dollars per year, generating direct and indirect effects on livestock such as low productivity and production rates, decreased reproduction, and even death through the transmission of diseases associated with this species, including diseases known as TBD (tick borne diseases), which are a public health problem in countries with high rates of occurrence, such as the United States, the United Kingdom, Russia, France, Australia and Brazil. The chemical control of cattle ticks began in 1895 with the use of arsenic baths that reduced infestation of this species in herds in Australia. Today, many formulations and techniques have been developed to control of this species; however, malpractice, underdosing and/ or overuse of these substances have allowed this species to develop different types of resistance, which have documented worldwide. Countries with a high number of resistance reports include Mexico, Brazil and Australia. These factors serve as a starting point for research that seeks to provide economically and environmentally viable alternatives for the control of cattle ticks, which make use of different types of plant extracts obtained from many species. As a result, high control rates at different stages of this species using various compounds with a less harmful effect on the environment have been achieved, such as with coumarins, which are obtained from chemical reactions using methodologies designed with the concept of green chemistry. This paper sought to provide an overview and approximation of the traditional control of R. (B.) microplus and control alternatives that use coumarin compounds.
微角鼻虫(Rhicephalus (Boophilus) microplus) (R. (B.) microplus)是一种起源于印亚的食血外寄生虫,产于热带和亚热带地区,由于气候变化,其地理分布范围扩大,向北纬和更高海拔地区迁移。据估计,该物种每年造成1390万至1870万美元的经济损失,对牲畜产生直接和间接影响,如生产力和生产率低下、繁殖减少,甚至通过传播与该物种有关的疾病,包括被称为TBD(蜱传疾病)的疾病而死亡。TBD在美国、联合王国、俄罗斯、法国等发病率高的国家是一个公共卫生问题。澳大利亚和巴西。对牛蜱的化学控制始于1895年,当时使用砷浴来减少这种物种在澳大利亚畜群中的侵扰。今天,已经开发了许多配方和技术来控制这个物种;然而,这些物质的不当使用、剂量不足和/或过度使用使该物种产生了不同类型的耐药性,这在全世界都有记录。有大量耐药性报告的国家包括墨西哥、巴西和澳大利亚。这些因素可以作为研究的起点,旨在为控制牛蜱提供经济上和环境上可行的替代方案,这些替代方案利用从许多物种中获得的不同类型的植物提取物。因此,在该物种的不同阶段,使用对环境危害较小的各种化合物(例如香豆素)取得了较高的控制率,香豆素是使用绿色化学概念设计的方法从化学反应中获得的。本文试图提供一个概述和近似的传统控制的r.b microplus和控制替代使用香豆素化合物。
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引用次数: 3
The corrective action of original cholesterol oxidase preparation: in vitro and in vivo use 原胆固醇氧化酶制剂的纠正作用:体外和体内使用
Pub Date : 2020-07-20 DOI: 10.15406/ppij.2020.08.00298
I. V. Okunevich, Natalya N Klyueva, N. S. Parfenova, E. Belova
Summary Atherogenic dyslipoproteinemia (DLP) is one of the modifiable risk factors of atherosclerosis (AS). For the primary prevention of DLP and reduce the risk of progression of the AS, it is necessary to use low cholesterol (Ch) foods and apply modern effective lipid-lowering agents that improve the blood lipid profile. Relevant is the search for various biologically active compounds that correct of lipids in DLP. The original preparation of cholesterol oxidase enzyme (PChO) of microbial origin was the subject of this study. In vitro experiments evaluated the ability of PChO to actively bind cholesterol in food. To assess the effect of PChO under conditions of moderate nutritional DLP, in vivo experiments were carried out in three species of animals (rats, guinea pigs, rabbits). It is established that when modeling DLP, the studied agent PChO when administered orally has a pronounced hypolipidemic effect. It is noted that under these conditions, after applying PChO, the disturbed blood lipid spectrum is significantly improved. When analyzing the results of ultracentrifugation of the blood serum of experimental animals, a decrease in the content of atherogenic (LP)–VLDL, LDL, and a positive increase in the concentration of antiatherogenic HDL, capable of accepting Ch were detected.
动脉粥样硬化性异常脂蛋白血症(DLP)是动脉粥样硬化(AS)可改变的危险因素之一。对于DLP的一级预防和降低AS进展的风险,有必要使用低胆固醇(Ch)食物和使用现代有效的降脂剂来改善血脂状况。相关的是寻找各种生物活性化合物来纠正DLP中的脂质。以微生物源胆固醇氧化酶(PChO)的原始制备为研究对象。体外实验评估了PChO主动结合食物中胆固醇的能力。为了评估PChO在中等营养DLP条件下的作用,我们在三种动物(大鼠、豚鼠、家兔)体内进行了实验。在建立DLP模型时,所研究的药物PChO口服具有明显的降血脂作用。在这些条件下,应用PChO后,受干扰的血脂谱明显改善。在对实验动物血清超离心结果进行分析时,检测到致动脉粥样硬化(LP) -VLDL、LDL含量降低,抗动脉粥样硬化HDL浓度升高,能够接受Ch。
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引用次数: 0
3Rs expression in quality control paradigms of human vaccines 3Rs在人疫苗质量控制范例中的表达
Pub Date : 2020-07-13 DOI: 10.15406/ppij.2020.08.00297
Tanveer Ahmed Khan, Syeda Shazia Adeel, K. Batool, Baseer Ahmad Khan
Communicable diseases remain the leading cause of mortality worldwide in past. Children and adolescent were the most affected individuals. However, the development of vaccine played a vital role in decreasing mortality and increasing life expectancy. Currently most of vaccines are based on utilizing animal pathogens and use of animals. This use of animal in quality testing of vaccines is inevitable. Over the past century, concern about animals’ interests was limited to ensure that animals be treated humanely and not subjected to unnecessary sacrifice and sufferings. However, with the rise of 3Rs concept the global scenario for use of animals is being changed a little. The current review addresses the refinement, reduction and replacement aspects of animal use in vaccine testing. It also dialogues about challenges to implement 3Rs and gadget this key concept for effective quality testing.The acceptability and implementation of 3Rs concept is based on good manufacturing practices, good in-process quality control and validated procedures and processes. It is easier for new vaccines to adopt this concept. However, several difficulties are still experienced in theimplementation of 3Rs principles for vaccine potency assays. Thus, insistent exploration is obligatory by bothhealth industries and regulatory agencies for the implementation and validation of robust 3Rs approaches around the globe.
过去,传染病仍然是全世界死亡的主要原因。儿童和青少年是受影响最大的人群。然而,疫苗的发展在降低死亡率和提高预期寿命方面发挥了至关重要的作用。目前大多数疫苗都是基于利用动物病原体和使用动物。在疫苗质量测试中使用动物是不可避免的。在过去的一个世纪里,对动物利益的关注仅限于确保动物得到人道对待,不遭受不必要的牺牲和痛苦。然而,随着3r概念的兴起,全球使用动物的情况正在发生一些变化。目前的审查涉及在疫苗试验中使用动物的改进、减少和替代方面。它还讨论了实施3r的挑战,并将这一关键概念用于有效的质量测试。3r概念的可接受性和实施是基于良好的生产规范,良好的过程质量控制和经过验证的程序和过程。新疫苗更容易采用这一概念。然而,在实施3Rs原则进行疫苗效力测定时仍然遇到一些困难。因此,健康行业和监管机构必须坚持不懈地探索,以在全球范围内实施和验证稳健的3r方法。
{"title":"3Rs expression in quality control paradigms of human vaccines","authors":"Tanveer Ahmed Khan, Syeda Shazia Adeel, K. Batool, Baseer Ahmad Khan","doi":"10.15406/ppij.2020.08.00297","DOIUrl":"https://doi.org/10.15406/ppij.2020.08.00297","url":null,"abstract":"Communicable diseases remain the leading cause of mortality worldwide in past. Children and adolescent were the most affected individuals. However, the development of vaccine played a vital role in decreasing mortality and increasing life expectancy. Currently most of vaccines are based on utilizing animal pathogens and use of animals. This use of animal in quality testing of vaccines is inevitable. Over the past century, concern about animals’ interests was limited to ensure that animals be treated humanely and not subjected to unnecessary sacrifice and sufferings. However, with the rise of 3Rs concept the global scenario for use of animals is being changed a little. The current review addresses the refinement, reduction and replacement aspects of animal use in vaccine testing. It also dialogues about challenges to implement 3Rs and gadget this key concept for effective quality testing.The acceptability and implementation of 3Rs concept is based on good manufacturing practices, good in-process quality control and validated procedures and processes. It is easier for new vaccines to adopt this concept. However, several difficulties are still experienced in theimplementation of 3Rs principles for vaccine potency assays. Thus, insistent exploration is obligatory by bothhealth industries and regulatory agencies for the implementation and validation of robust 3Rs approaches around the globe.","PeriodicalId":19839,"journal":{"name":"Pharmacy & Pharmacology International Journal","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84745511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sunscreen and moisturizer cream effects of cosmetic formulations containing extracts of Hypnea musciformis collected in the Colombian Caribbean 防晒和保湿霜霜的化妆品配方含有提取于哥伦比亚加勒比地区的海绵体
Pub Date : 2020-06-26 DOI: 10.15406/PPIJ.2020.08.00296
Paula Alejandra Vargas Aya, Gladys Rozo Torres
Background: Three cosmetic products were developed: moisturizer, sunscreen and gel mask; their ingredients are innovative since they have extract of Hypnea musciformis a seaweed found on the coast of Colombia. Objectives: To determine that cosmetic products do not cause skin irritation and that they can protect the skin from sunlight. To measure with organoleptic tests the smell, texture and color of the products. To perform microbiological and physical-chemical tests of these cosmetic products. Methods: The active compounds present in H. musciformis were obtained with the supercritical extraction method. The cosmetic formulations were made with components approved by the European Standard No. 1223.UV filters, extracts of H. musciformis , Vitamins A, B and D, collagen and aloe vera were added. Evaluation : The photo protective effects were measured and in-vivo tests were carried out to determine if the formulations rise irritation.Physicochemical properties: density, viscosity and pH of all formulations were determined. Microbiological tests: the presence of Staphylococcus aureus , Pseudomonas aeruginosa and coliform bacteria was evaluated. Sensory tests: product approval was measured by color, odor and texture. Results: The ultraviolet spectrum showed absorbances of 190nm, 290nm and 365nm wavelengths. Relative densities were: mask: 1.0062, moisturizer: 0.9337, sunscreen 0.9802. pH: mask: 6.90, moisturizer: 6.86 and sunscreen: 6.82.The moisturizer and sunscreen viscosity shows a pseudoplastic behavior; the mask has a viscosity of 7.46 x 10 -4 Pa*s. There is no presence of Staphylococcus aureus , Pseudomonas aeruginosa or coliform bacteria. The skin irritation test in vivo showed 100% negative results. The cosmetic products do not irritate the skin. The results of the sensory evaluations show an approval in smell, color and texture. Conclusions : H. musciformis extracts are considered effective ingredients to use in sunscreen and moisturizer formulations. The combination of vitamins A, B and D, aloe vera, collagen and alga extract significantly improves its properties.
背景:开发了三种化妆品:保湿霜、防晒霜和凝胶面膜;他们的成分是创新的,因为他们提取了一种在哥伦比亚海岸发现的海藻。目的:确定化妆品不会引起皮肤刺激,并能保护皮肤免受阳光照射。用感官试验测量产品的气味、质地和颜色。对这些化妆品进行微生物和物理化学测试。方法:采用超临界萃取法提取麻蝇中有效成分。化妆品配方的成分经欧洲标准1223号批准。添加紫外线滤光剂、麻蝇提取物、维生素A、B、D、胶原蛋白和芦荟。评价:测量光防护效果,并进行体内试验,以确定配方是否会引起刺激。理化性质:测定了所有配方的密度、粘度和pH值。微生物学检查:评估金黄色葡萄球菌、铜绿假单胞菌和大肠菌群的存在。感官测试:通过颜色、气味和质地来衡量产品是否合格。结果:紫外光谱的吸光度分别为190nm、290nm和365nm。相对密度为:面膜:1.0062,保湿霜:0.9337,防晒霜:0.9802。pH值:面膜:6.90,保湿霜:6.86,防晒霜:6.82。润肤剂和防晒剂的黏度表现出假塑性行为;该掩膜的粘度为7.46 × 10 -4 Pa*s。没有金黄色葡萄球菌,铜绿假单胞菌或大肠菌群的存在。体内皮肤刺激试验100%阴性。这些化妆品不刺激皮肤。感官评价结果表明,在气味、颜色和质地上是一致的。结论:麻蝇提取物被认为是防晒霜和润肤霜配方中有效的成分。维生素A, B和D,芦荟,胶原蛋白和海藻提取物的组合显著改善其性能。
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引用次数: 0
Pharmacological activities of Ballota acetabulosa (L.) Benth: A mini review 乙酰球藻的药理活性研究本斯:一个小小的回顾
Pub Date : 2020-06-22 DOI: 10.15406/PPIJ.2020.08.00294
Reshma Kumari, Sanjay Kumar
The Ballota L. genera belonging to the Lamiaceae family found mainly in the Mediterranean area, Middle East, and North Africa. From the ancient times this genus has been largely explored for their biological properties. Phytochemical investigations of Ballota species have revealed that diterpenoids are the main constituents of the genera. A large number of flavonoids and other metabolites were also identified. This mini review covers the traditional and pharmacological properties of Ballota acetabulosa (L.) Benth species.
水仙属水仙属水仙科,主要分布于地中海地区、中东和北非。从古代开始,这个属就因其生物学特性而被广泛探索。植物化学研究表明,二萜类化合物是该属植物的主要成分。还鉴定出大量的类黄酮和其他代谢物。这篇小综述涵盖了传统和药理学性质的球藻(L.)。Benth物种。
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引用次数: 0
Assessment of antioxidant properties of N-Hexane extract of Morinda lucida as a link to its pharmacological actions 桑葚正己烷提取物的抗氧化性能及其药理作用的研究
Pub Date : 2020-06-18 DOI: 10.15406/PPIJ.2020.08.00293
E. M. Ale
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引用次数: 2
Anti-HIV and Anti-HCV drugs are the putative inhibitors of RNA-dependent-RNA polymerase activity of NSP12 of the SARS CoV-2 (COVID-19) 抗hiv和抗hcv药物被认为是SARS - CoV-2 (COVID-19) rna依赖性rna聚合酶NSP12活性的抑制剂
Pub Date : 2020-06-15 DOI: 10.15406/ppij.2020.08.00292
F. Athar, Amjad Beg
Corona virus is the emerging infectious viral agent that had to threaten the world with its epidemic since 2003 with SARS and 2013 with MERS virus. This virus again stuck the whole world with its robust pandemic in 2019whena novel form of the corona virus was emerged in and infect the local population of Wuhan, China. The virus named as SARS CoV-2 and the disease caused by this infectious virus is introduced as COVID 19. Since December 2019, this virus took more than 432, 973 lives all around the world. This study elaborates the role of HIV and HCV drug in targeting nsp12 gene of SARS CoV 2 that is responsible for RNA dependent RNA polymerase activity. The work employed homology modelling, structure validation and molecular docking analysis to evaluate the binding affinity and interaction analysis between NSP12 (RdRp) protein and HIV/HCV drugs. Outcome of the study impacted on Nelfinavir (NFV), Raltegravir (RAL) and Delavirdine (DLV) among Anti-HIV and Paritaprevir (PTV), Beclabuvir (BCV) and Ledipasvir (LDV) among Anti-HCV as the most effective inhibitors of SARS CoV-2 RdRp ternary complexes. The drugs have a strong binding affinity with the residues that are present in the active site of RdRp of the virus and essential for its replication. This study establishes significant information in the direction of therapeutic development as we are dealing with the situation where we urgently required medication or vaccine to combat COVID-19. Therefore, this study provides essential molecular information about the FDA approved antiviral drugs that can be used to treat this disease. Importantly, the listed drugs had never prioritized for their effectiveness against COVID-19. Immuno Deficiency Virus (HIV) drugs, HCV drugs and anti-malarial drugs. 18,19
冠状病毒是一种新兴的传染性病毒,自2003年的非典和2013年的中东呼吸综合征以来,它一直在威胁着世界。2019年,当一种新型冠状病毒在中国武汉出现并感染当地人群时,这种病毒再次以其强劲的大流行震惊了全世界。被命名为SARS CoV-2的病毒和由这种传染性病毒引起的疾病被介绍为COVID - 19。自2019年12月以来,这种病毒在全球夺走了432,973人的生命。本研究阐述了HIV和HCV药物在靶向SARS CoV 2中负责RNA依赖性RNA聚合酶活性的nsp12基因中的作用。采用同源性建模、结构验证和分子对接分析等方法评价NSP12 (RdRp)蛋白与HIV/HCV药物的结合亲和力和相互作用分析。研究结果影响了抗hiv中的奈非那韦(NFV)、雷替格雷韦(RAL)和德拉韦丁(DLV)以及抗hcv中的帕利他韦(PTV)、贝拉布韦(BCV)和来地帕韦(LDV)作为SARS CoV-2 RdRp三元复合物最有效的抑制剂的作用。这些药物与存在于病毒RdRp活性位点的残基具有很强的结合亲和力,这些残基是病毒复制所必需的。这项研究为治疗发展方向提供了重要信息,因为我们正在处理迫切需要药物或疫苗来对抗COVID-19的情况。因此,这项研究为FDA批准的抗病毒药物提供了基本的分子信息,这些药物可用于治疗这种疾病。重要的是,列出的药物从未优先考虑其对COVID-19的有效性。免疫缺陷病毒(HIV)药物、丙型肝炎病毒(HCV)药物和抗疟疾药物。18、19
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引用次数: 28
Iodometric determination of ascorbic acid in bulk and Vitamin-C tablets using Potassium Iodate 碘酸钾碘量法测定散装和维生素c片中的抗坏血酸
Pub Date : 2020-06-10 DOI: 10.15406/PPIJ.2020.08.00291
P. Sowmya, Anitha Sudhir, K. Rai, H. Deepakumari
Ascorbic acid is one of the major water soluble vitamin and many health benefits have been attributed to ascorbic acid such as antioxidant, anti-atherogenic,immunomodulator anti-carcinogenic etc. It plays a vital role in the biosynthesis of collagen, carnitine and neurotransmitters. As humans can not produce ascorbic acid due to the lack of an enzyme gulonolactone oxidase, it has to be supplemented mainly through fruits, vegetables and tablets. In this present work, we have reported a simple, cost effective, reliable titrimetric method for the estimation of ascorbic acid present in commercially available Vit-C tablets and also the determination of molecular weight of ascorbic acid. The method involves the oxidative dehydrogenation of ascorbic acid by potassium iodate followed by the determination of unreacted potassium iodate by iodometry. Access
抗坏血酸是一种主要的水溶性维生素,具有抗氧化、抗动脉粥样硬化、免疫调节、抗癌等功效。它在胶原蛋白、肉碱和神经递质的生物合成中起着至关重要的作用。由于人体缺乏谷洛内酯氧化酶而不能产生抗坏血酸,因此主要通过水果、蔬菜和药片来补充。在本研究中,我们报道了一种简单、经济、可靠的测定市售维c片中抗坏血酸含量和抗坏血酸分子量的方法。该方法是用碘酸钾氧化脱氢抗坏血酸,然后用碘量法测定未反应的碘酸钾。访问
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引用次数: 2
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