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Screening of bacteria Streptomyces Waksman and Henrici 1943 (Streptomycetaceae) Isolates from Soil Samples in Iraq 伊拉克土壤样品中Waksman链霉菌和Henrici链霉菌1943株的筛选
Pub Date : 2021-09-17 DOI: 10.22034/IJABBR.2021.534456.1364
Bassam Qasim, M. H. Risan
Background: The genus Streptomyces Waksman & Henrici 1943 includes aerobic, gram-positive, and filamentous bacteria which produce well developed vegetative hyphae with branches. The wall consists of a large mixture of different compounds, including peptidoglycan, teichuronic acid, teichoic, and polysaccharides. The peptidoglycan components consist of glycan as a chains of irregular N-acetyl- d-muramic acid (NAM), diaminopimelic acid, and N-acetyl-d-glucosamine (NAG) and DAP, which is unique in the cell walls of prokaryotic microorganisms. The teichoic and teichuronic acid are chemically bonded to peptidoglycan. Methods: One gram of soil samples was used to make suspension, by adding 99 mL of sterile distilled water (stock suspension) into it and shaking it in a shaker at 160 rpm for 30 minutes at room temperature. Serial dilutions from 0.1-0.001 were made from the stock suspension, and left for 10 minutes. After shaking, 0.1 mL of each dilution was cultured on Yeast Extract and Malt Extract agar (YEME) with Streptomycin 50 ug/mL. The inoculated plates were incubated at 28 °C for 7 to 10 days. Based on cultural characteristics, suspected colonies of Streptomyces were selected, which are characterized as small, white, pin-point, rough, chalky, and a clear zone of inhibition around them. These colonies were confirmed their identification by types of Gram’s stain, aerial and substrate mycelium color, pigment production, and pigment color.  Streptomyces were re-streaked on International Streptomyces project (ISP) to obtain pure colonies used for identification.   Results: The current study aimed to screen bacteria Streptomyces isolates. Only 21 samples of soil were suspected to contain Streptomyces, and 45 isolates were obtained with different morphology types per samples of soil. The colonies suspects were selected basis on color that ranged from gray, white and creamy. The microscopic examination of local Streptomyces spp. after Gram-staining method was conducted. The observations revealed that local Streptomyces is gram positive and rod shaped similar to features of fungal in possessing branched mycelium. The Streptomyces produced extra cellular enzymes like amylase, urease, catalase, protease, Gelatinase, cellulase and phosphatase. Utilization of citrate was positive, with no Melanine reaction production and soluble pigmented, and negative for indole production. Conclusion: The identification of the Streptomyces is a very complex process.  Morphological and biochemical characteristics are two important aspects for the classification in the Streptomycetaceae family. By studying the morphological, cultural, and biochemical characteristics, it is observed that the local isolates are belonging to the genus of Streptomyces.
背景:链霉菌Waksman & Henrici 1943属包括需氧菌、革兰氏阳性菌和丝状菌,它们产生发育良好的有分支的营养菌丝。胞壁由不同化合物的大混合物组成,包括肽聚糖、锝酸、锝酸和多糖。肽聚糖组分由不规则的n -乙酰-d-氨基戊酸(NAM)、二氨基戊酸、n -乙酰-d-氨基葡萄糖胺(NAG)和DAP链组成,这在原核微生物细胞壁中是独特的。锝酸和锝酸在化学上与肽聚糖结合。方法:取1克土样配制悬浮液,加入无菌蒸馏水(原液悬浮液)99 mL,室温下在摇床中以160转/分摇摇30分钟。从原液混悬液中连续稀释0.1-0.001,静置10分钟。摇匀后,各稀释液0.1 mL用链霉素50 ug/mL在酵母膏和麦芽膏琼脂(YEME)上培养。28℃孵育7 ~ 10天。根据培养特点,选择疑似链霉菌菌落,菌落特征为小、白、尖、粗糙、白垩,周围有明显的抑制区。这些菌落通过革兰氏染色类型、气生和底生菌丝颜色、色素产量和色素颜色进行鉴定。利用国际链霉菌项目(International Streptomyces project, ISP)对链霉菌进行重新条纹检测,获得用于鉴定的纯菌落。结果:本研究旨在筛选链霉菌分离菌。仅21份土壤样品疑似含有链霉菌,每份土壤样品分离到45株不同形态类型的链霉菌。殖民地嫌疑人是根据灰色、白色和乳白色的颜色来选择的。用革兰氏染色法对局部链霉菌进行显微镜检查。结果表明,局部链霉菌革兰氏阳性,具有分枝菌丝体的棒状特征与真菌相似。链霉菌产生额外的细胞酶,如淀粉酶、脲酶、过氧化氢酶、蛋白酶、明胶酶、纤维素酶和磷酸酶。柠檬酸的利用率为正,不产生黑色素反应和可溶性色素,而不产生吲哚。结论:链霉菌的鉴定是一个非常复杂的过程。形态特征和生化特征是链霉菌科分类的两个重要方面。通过形态学、培养和生化特征的研究,发现当地分离株属于链霉菌属。
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引用次数: 1
Candida Berkh. (1923) Species and Their Important Secreted Aspartyl Proteinases (SAP) Genes Isolated from Diabetic Patients 假丝酵母Berkh。(1923)从糖尿病患者中分离出的重要的天冬氨酸蛋白酶(SAP)基因
Pub Date : 2021-09-14 DOI: 10.22034/IJABBR.2021.534165.1361
Thamer A. A. Muhsen, M. H. Risan, Nawras N Alqaysi
Background: Candida Berkh. (1923) occurs naturally in the body. But it becomes opportunistic fungi, meaning that it infects humans when there is any weakening of the immune system, such as exposure to chemotherapy, diabetes, or organ transplantation. Most species of Candida grow at a temperature between 20-40 °C and have a pH of 3-8. Human pathogens of Candida species include C. albicans, C. glabrata, C. lusitaniae, C. parapsilosis, C. tropicalis and C. utili. C. albicans has many virulence factors that facilitate injury process. Virulence factors are considered as a measure of pathogenicity, and it is in the form of fungal toxins, enzymes, or cell structures that facilitate infection, as well as pathogen resistance in different conditions. This study aimed to investigate the frequency of some secreted aspartyl proteinases (SAP) genes from some Candida species isolated from diabetic patientsMethods: Candida spp. were identified on CHROMagar medium by color of each species after incubation at 37 °C for 48 hours such as: C. krusei, C. albicans, C. glabrata, and C. tropicalis. Germ tube formation test was used to distinguish between germ tube-forming species, such as C. albicans and C. dubliniensis , from those that do not produce germ tube. A portion of the isolation was taken and placed in a test tube containing 0.5 ml of serum, and then incubated at 37 °C for 2-4 hours. A drop of serum was taken out and examined under a microscope for the presence of the germ tube. Growth at 45 °C, has the advantage of distinguishing between C. albicans and C. dubliniensis by culturing Candida spp. on SDA medium and, incubation for 48-72 hours at 45 °C.Results: The results of isolation and diagnosis showed that Candida species grew at 37 °C for 48 hours on SDA medium, the shape of the colonies was round or oval-convex, and creamy white, shiny and smooth color. The results of the microscopic examination of the cells were spherical or oval, C. albicans was distinguished by its ability to grow at 45 °C and its ability to form the germ tube. The surface growth test showed the ability of C. tropicalis to grow surface on SDB medium. The medium of CHROMagar showed that C. albicans were light green in color. C. glabrata showed a pale pink color, while C. tropecalis showed a blue color and C. dublineiensis was dark green. DNA extracted samples, including 20 isolates, were used for four species of Candida, 1-9 C. albicans, 10-16 C. glabrata, 17-18 C. dubliniensis and 19-20 C. tropicalis.  Parts of the body (mouth, vagina, Urine) detect SAP1 and SAP7 genes by PCR, and after electrophoresis of the PCR product, the results were positive for all Candida species studied as all isolates that contained SAP1 (578bp) and SAP7 (466bp).Conclusion: The SAP genes are among the main virulence factors for the occurrence of candidiasis. SAP1 and SAP7 genes  are responsible for digesting and breaking down protein to penetrate the host's tissues.
背景:Candida Berkh。(1923)在体内自然发生。但它变成了机会性真菌,这意味着当免疫系统出现任何削弱时,比如暴露于化疗、糖尿病或器官移植,它就会感染人类。大多数种类的念珠菌生长在20-40°C之间,pH值为3-8。念珠菌属的人类病原体包括白色念珠菌、光秃念珠菌、卢西塔念珠菌、副念珠菌、热带念珠菌和公用念珠菌。白色念珠菌具有许多促进损伤过程的毒力因子。毒力因子被认为是一种致病性的度量,它以真菌毒素、酶或细胞结构的形式促进感染,以及在不同条件下的病原体抗性。方法:在CHROMagar培养基上37℃孵育48 h,对克鲁氏念珠菌(C. krusei)、白念珠菌(C. albicans)、光念珠菌(C. glabrata)和热带念珠菌(C. tropicalis)等念珠菌进行染色鉴定。芽管形成试验用于区分白色念珠菌和dubliniensis等芽管形成菌和不产生芽管的芽管形成菌。取一部分分离物置于含有0.5 ml血清的试管中,37℃孵育2-4小时。取出一滴血清,在显微镜下检查胚芽管的存在。在45°C下生长,通过在SDA培养基上培养念珠菌,并在45°C下孵育48-72小时,具有区分白色念珠菌和dubliniensis的优势。结果:分离诊断结果显示,念珠菌菌种在SDA培养基上37℃培养48 h,菌落形状为圆形或卵凸状,菌落呈乳白色,色泽光亮光滑。细胞镜检结果为球形或卵圆形,白色念珠菌在45℃下能生长,并能形成胚管。表面生长试验表明,热带镰刀菌在SDB培养基上具有表面生长能力。CHROMagar培养基显示白色念珠菌呈浅绿色。光棘棘为淡粉色,热带棘棘为蓝色,都柏林棘棘为墨绿色。DNA提取样本包括20株念珠菌,分别为1 ~ 9株白色念珠菌、10 ~ 16株光秃念珠菌、17 ~ 18株dubliniensis和19 ~ 20株热带念珠菌。对人体部分部位(口腔、阴道、尿液)进行SAP1和SAP7基因的PCR检测,对PCR产物进行电泳检测,所有假丝酵母菌种均为阳性,分离株均含有SAP1 (578bp)和SAP7 (466bp)。结论:SAP基因是念珠菌病发生的主要毒力因素之一。SAP1和SAP7基因负责消化和分解蛋白质以穿透宿主组织。
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引用次数: 1
Preparation and Study of Physical Properties of Zein Based Composite Films as Food Coatings 玉米蛋白基复合食品涂料的制备及物性研究
Pub Date : 2021-08-09 DOI: 10.22034/IJABBR.2021.522968.1342
S. Kianirad, Z. Mokhtari-Hosseini, Ashraf Hatamian-Zaremi, Moein Sarsangi, Sajad Afshar-Yegane, Rasool Setareyi, Ayat Azizi-Alavijeh, M. Haddadi
Background: Demand for degradable and biocompatible polymers is rapidly increasing, especially in the food packaging sector where it is highly encouraged by environmental management policies.Methods: This study aimed to prepare zein/Montmorillonite (MMT) and zein/poly(vinyl alcohol) composite films by a high power ultrasonic probe method for use as a food coating. The film was produced through solvent casting method. In all the films, glycerol and Polyethylene glycol were used to improve the fragility properties. The biodegradability, color characteristics and surface roughness of the films were evaluated.Results: Based on the results of the statistical analysis, the clay dispersion method a, Montmorillonite (MMT) and poly (vinyl alcohol) content significantly affected the mechanical and properties of the composite films. The results showed that mechanical properties of the nanocomposites were improved in the presence of small amounts (up to 3%) of MMT, while increased montmorillonite percentage in the micro composite films weakened the mechanical properties of these films. It was also found that the addition of montmorillonite and poly (vinyl alcohol) increased the porosity of the film. Therefore, the use of high power sonication is a suitable method for producing protein-based nanocomposites with an exfoliated structure.Conclusions: as the nanocomposite films of zein, zein-polyvinyl alcohol and zein-montmorillonite are highly biodegradable, ntural and non-toxic, they are highly efficient in this field and can be used in food packaging.
背景:对可降解和生物相容性聚合物的需求正在迅速增加,特别是在环境管理政策高度鼓励的食品包装领域。方法:采用高功率超声探针法制备玉米蛋白/蒙脱土(MMT)和玉米蛋白/聚乙烯醇(乙烯醇)复合薄膜作为食品涂层。采用溶剂铸造法制备薄膜。在所有薄膜中,使用甘油和聚乙二醇来改善脆性。对膜的生物降解性、颜色特性和表面粗糙度进行了评价。结果:基于统计分析的结果,粘土分散方法a、蒙脱土(MMT)和聚乙烯醇(乙烯醇)含量对复合膜的力学性能有显著影响。结果表明,少量(3%)蒙脱土的加入使纳米复合材料的力学性能得到改善,而蒙脱土含量的增加则使纳米复合材料的力学性能减弱。同时发现蒙脱土和聚乙烯醇的加入增加了膜的孔隙率。因此,利用高功率超声是制备具有剥离结构的蛋白质基纳米复合材料的合适方法。结论:玉米蛋白、玉米蛋白聚乙烯醇和玉米蛋白蒙脱土纳米复合膜具有生物可降解性强、天然无毒等特点,在该领域具有较高的应用效率,可用于食品包装。
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引用次数: 0
Evaluation of Relationship between Vitamin D Supplementation Treatment and Hypercalciuria in Patients with Kidney Stones 评价补充维生素D治疗与肾结石患者高钙尿的关系
Pub Date : 2021-08-06 DOI: 10.22034/IJABBR.2021.537924.1366
Javadian Javadian, A. Alidadi, Mahmoud Ali Kikhvaei, A. A. Moghaddam
Background: Vitamin D, especially calcitriol (its active metabolite), increases gastrointestinal calcium absorption. Because urinary calcium excretion is associated with calcium absorption in the gastrointestinal tract; vitamin D metabolites could theoretically cause hypercalciuria. The aim of this study was to investigate the relationship between treatment and vitamin D supplementation on the rate of hypercalciuria in patients. Method: In the present double-blind randomized clinical trial, 90 patients (male-female) with urinary stones and serum vitamin D levels less than 30 ng/mL were evaluated. Patients were randomLy divided into two groups of 45 patients. One group was given 50,000 units of oral vitamin D weekly for up to 8 weeks. For the other group, the drug was given as a placebo for up to 8 weeks. Sampling was performed one month after the end of treatment. The data garnered from hospital records were inserted into SPSS software for analysis.Results: In the present study, the mean age of the subjects was 39.78 years. Also, out of 90 patients, 52 were male and 38 were female. Blood PTH levels decreased significantly after treatment in vitamin D group (P <0.001). Also, serum levels of vitamin D in this group showed a significant increase (P <0.001). However, in this study urinary calcium levels after treatment did not show significant changes (P = 0.680).Conclusion: The present study showed that in people with a history of kidney stones, taking vitamin D supplement alone for people with lower than standard serum levels of vitamin D did not show any significant difference in calcification. As a result, the therapeutic dose of this drug is recommended in patients with kidney stones according to the condition.
背景:维生素D,尤其是骨化三醇(其活性代谢产物),可增加胃肠道钙的吸收。因为尿钙排泄与胃肠道钙吸收有关;维生素D代谢物理论上会导致高钙尿症。本研究的目的是探讨治疗和补充维生素D对患者高钙尿率的关系。方法:采用双盲随机临床试验,对90例血清维生素D水平低于30 ng/mL的尿路结石患者(男、女)进行评价。患者随机分为两组,每组45例。一组每周口服5万单位维生素D,持续8周。对于另一组,该药作为安慰剂服用长达8周。治疗结束后1个月取样。从医院记录中收集的数据被插入SPSS软件进行分析。结果:本组研究对象平均年龄39.78岁。90例患者中,男性52例,女性38例。维生素D组治疗后血PTH水平明显降低(P <0.001)。血清维生素D水平也显著升高(P <0.001)。然而,在本研究中,治疗后尿钙水平无显著变化(P = 0.680)。结论:目前的研究表明,在有肾结石病史的人群中,单独服用维生素D补充剂对维生素D低于标准血清水平的人没有显示出任何显著的钙化差异。因此,对于肾结石患者,根据病情推荐该药的治疗剂量。
{"title":"Evaluation of Relationship between Vitamin D Supplementation Treatment and Hypercalciuria in Patients with Kidney Stones","authors":"Javadian Javadian, A. Alidadi, Mahmoud Ali Kikhvaei, A. A. Moghaddam","doi":"10.22034/IJABBR.2021.537924.1366","DOIUrl":"https://doi.org/10.22034/IJABBR.2021.537924.1366","url":null,"abstract":"Background: Vitamin D, especially calcitriol (its active metabolite), increases gastrointestinal calcium absorption. Because urinary calcium excretion is associated with calcium absorption in the gastrointestinal tract; vitamin D metabolites could theoretically cause hypercalciuria. The aim of this study was to investigate the relationship between treatment and vitamin D supplementation on the rate of hypercalciuria in patients. Method: In the present double-blind randomized clinical trial, 90 patients (male-female) with urinary stones and serum vitamin D levels less than 30 ng/mL were evaluated. Patients were randomLy divided into two groups of 45 patients. One group was given 50,000 units of oral vitamin D weekly for up to 8 weeks. For the other group, the drug was given as a placebo for up to 8 weeks. Sampling was performed one month after the end of treatment. The data garnered from hospital records were inserted into SPSS software for analysis.Results: In the present study, the mean age of the subjects was 39.78 years. Also, out of 90 patients, 52 were male and 38 were female. Blood PTH levels decreased significantly after treatment in vitamin D group (P <0.001). Also, serum levels of vitamin D in this group showed a significant increase (P <0.001). However, in this study urinary calcium levels after treatment did not show significant changes (P = 0.680).Conclusion: The present study showed that in people with a history of kidney stones, taking vitamin D supplement alone for people with lower than standard serum levels of vitamin D did not show any significant difference in calcification. As a result, the therapeutic dose of this drug is recommended in patients with kidney stones according to the condition.","PeriodicalId":13887,"journal":{"name":"International journal of Advanced Biological and Biomedical Research","volume":"1 1","pages":"352-361"},"PeriodicalIF":0.0,"publicationDate":"2021-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86463968","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
Bioinformatics Analysis of Bioactive Compounds of Four Capsicum Species against SARS-CoV-2 Infection 4种辣椒抗SARS-CoV-2活性物质的生物信息学分析
Pub Date : 2021-08-05 DOI: 10.22034/IJABBR.2021.139183.1335
Nur Rahmattullah, E. L. Arumingtyas, M. H. Widyananda, Alhuda Niftakhul Ahyar, I. Tabroni
Background: Plant-based remedies against Covid-19 and their research to discover antiviral compounds have been growing rapidly. However, there are little interest to explore and collect information of bioactive compounds of pepper (Capsicum sp.) to fight off the disease. This study aimed to bioinformatically explore and identify bioactive compounds in chili pepper fruits from four Capsicum species (C. annuum, C. baccatum, C. chinense, C. frutescens) which were compatible to fight off SARS-CoV-2 and provide indirect and direct virus inhibition from previous studies. Methods: Protein-ligand interactions were obtained from protein data bank (PDB), PubChem, and SwissModel for homology modeling. Docking was performed using PyRx and visualized using BIOVIA Discovery Studio Visualizer 2016. Results: Four chili pepper species were rich in organic acid compounds (100 times higher than carotenoids concentration; 0.2-156 mg/kg F.W). A type of fatty acids composition in seeds was slightly different from flesh and peels by the small amount of pharmaceutically valuable palmitoleic acids in seeds (approximately 30 mg/kg F.W). Composition of flavonoid relatively varied among the species but luteolin was found in all chili peppers (0.5-18 mg/kg F.W). Most of the compounds were actively interacting with 3CLPro rather than ACE-2 and TMPRSS2 which were well covered up by only 10 and 17 molecules respectively. Conclusion: Four chili pepper species contained bioactive compounds that are medicinally important to fight against SARS-CoV-2 infection.
背景:针对Covid-19的植物疗法及其发现抗病毒化合物的研究一直在迅速发展。然而,对辣椒(Capsicum sp.)抗该病的生物活性物质的研究和收集却很少。本研究旨在从生物信息学上探索和鉴定四种辣椒品种(C. annuum, C. bacaccatum, C. chinense, C. frutescens)果实中具有抗SARS-CoV-2相容性的生物活性化合物,并从先前的研究中提供间接和直接的病毒抑制。方法:从蛋白质数据库(PDB)、PubChem和SwissModel中获取蛋白质与配体的相互作用,进行同源性建模。对接使用PyRx进行,并使用BIOVIA Discovery Studio Visualizer 2016进行可视化。结果:4种辣椒中有机酸类化合物含量均比类胡萝卜素含量高100倍;0.2 ~ 156 mg/kg F.W)。种子中的一种脂肪酸组成与果肉和果皮略有不同,因为种子中含有少量具有药用价值的棕榈油酸(约为30 mg/kg F.W)。黄酮类化合物的组成在不同品种间差异较大,但木犀草素在所有辣椒中均存在(0.5 ~ 18 mg/kg F.W)。与ACE-2和TMPRSS2相比,大多数化合物与3CLPro相互作用活跃,而ACE-2和TMPRSS2分别仅被10个和17个分子覆盖。结论:四种辣椒含有抗SARS-CoV-2感染的重要药用活性物质。
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引用次数: 0
The Toxicological effect of Cuscuta epithymum and Artemisia absinthium species on CP70 ovarian cancer cells 菟丝草上皮和苦艾对卵巢癌细胞CP70的毒理学作用
Pub Date : 2021-07-29 DOI: 10.22034/IJABBR.2021.526486.1355
Homa Hakimian, S. Rezaei‐Zarchi, Amaneh Javid
Background: Ovarian cancer is one of the most common malignancies among women worldwide and is also the fifth leading cause of cancer death among women in recent years. Herbs have been used for centuries to treat a variety of ailments, including cancers. Medicinal plants can be use d in pure form or in combination with others. Methods: In this study, after preparing the plant dry, extracts of Artemisia absinthium and Cuscuta epithymum were extracted by Soxhlet method. After Preparation of cell culture medium, Investigations continued. MTT test and Gap closure test were performed to evaluate the toxicity of Cuscuta Epithymum and Artemisia Absinthium Species on CP70 Ovarian Cancer Cells to Compared these two extracts mortality rate. Results: The lowest cell migration in 48 h was related to A. absinthium treatments with concentrations of 1: 100 and 1: 1000. The lowest cell migration in the period of 72h is related to the treatment of C. epithymum with a concentration of 1: 1000, which these results are less significant than the effect of A. absinthium. The lowest cell migration in the period of 72h is related to the treatment of C. epithymum with a concentration of 1: 1000, which these results are less significant than the effect of A. absinthium. Conclusions: MTT test showed that the treatment of plant extracts of C. epithymum and A. absinthium can disrupt the growth process as well as the migration and progression of CP70 cancer cells of ovarian cancer and cause cell apoptosis.
背景:卵巢癌是全世界妇女中最常见的恶性肿瘤之一,也是近年来妇女癌症死亡的第五大原因。几个世纪以来,草药一直被用来治疗包括癌症在内的各种疾病。药用植物可以单独使用,也可以与其他植物结合使用。方法:采用索氏法提取苦艾和菟丝子上皮组织的提取物。制备细胞培养基后,继续进行研究。采用MTT法和间隙闭合法评价苦艾和菟丝草两种提取物对CP70卵巢癌细胞的毒性,并比较两种提取物的死亡率。结果:1∶100和1∶1000苦艾草浓度处理48h细胞迁移量最低;在72h内,细胞迁移量最低的是浓度为1:10 00的苦艾草,其影响不如苦艾草显著。在72h内,细胞迁移量最低的是浓度为1:10 00的苦艾草,其影响不如苦艾草显著。结论:MTT实验表明,苦艾草和上皮草植物提取物对卵巢癌CP70癌细胞的生长、迁移和进展有干扰作用,并引起细胞凋亡。
{"title":"The Toxicological effect of Cuscuta epithymum and Artemisia absinthium species on CP70 ovarian cancer cells","authors":"Homa Hakimian, S. Rezaei‐Zarchi, Amaneh Javid","doi":"10.22034/IJABBR.2021.526486.1355","DOIUrl":"https://doi.org/10.22034/IJABBR.2021.526486.1355","url":null,"abstract":"Background: Ovarian cancer is one of the most common malignancies among women worldwide and is also the fifth leading cause of cancer death among women in recent years. Herbs have been used for centuries to treat a variety of ailments, including cancers. Medicinal plants can be use d in pure form or in combination with others. Methods: In this study, after preparing the plant dry, extracts of Artemisia absinthium and Cuscuta epithymum were extracted by Soxhlet method. After Preparation of cell culture medium, Investigations continued. MTT test and Gap closure test were performed to evaluate the toxicity of Cuscuta Epithymum and Artemisia Absinthium Species on CP70 Ovarian Cancer Cells to Compared these two extracts mortality rate. Results: The lowest cell migration in 48 h was related to A. absinthium treatments with concentrations of 1: 100 and 1: 1000. The lowest cell migration in the period of 72h is related to the treatment of C. epithymum with a concentration of 1: 1000, which these results are less significant than the effect of A. absinthium. The lowest cell migration in the period of 72h is related to the treatment of C. epithymum with a concentration of 1: 1000, which these results are less significant than the effect of A. absinthium. Conclusions: MTT test showed that the treatment of plant extracts of C. epithymum and A. absinthium can disrupt the growth process as well as the migration and progression of CP70 cancer cells of ovarian cancer and cause cell apoptosis.","PeriodicalId":13887,"journal":{"name":"International journal of Advanced Biological and Biomedical Research","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74137084","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
Phyto-Mediated silver nanoparticles via melissa officinalis aqueous and methanolic extracts: Synthesis, characterization and biological properties against infectious bacterial strains 植物介导的银纳米颗粒的水和甲醇提取物:合成,表征和抗感染性细菌菌株的生物学特性
Pub Date : 2021-07-24 DOI: 10.22034/IJABBR.2021.525079.1349
F. Nayeri, S. Mafakheri, Maryam Mirhosseini, R. Sayyed
Background: The present study was aimed to examine the influence of extraction method on the morphology, physico-chemical characteristics and antimicrobial properties of silver nanoparticles (AgNPs) synthesized from Melissa officinalis.Methods: AgNPs were prepared by two extraction methods. The properties of obtained nanoparticles were characterized by SEM, UV-Vis, XRD and FTIR techniques. SEM images showed different shape, size and morphology of AgNPs using two different extracts types.Results: The UV-Vis spectroscopy confirmed the formation of AgNPs by observing a distinct surface Plasmon resonance band around 450 nm. SEM images showed different shape, size and morphology of AgNPs using two different extracts types. AgNPs derived from the aqueous extract were rod-shaped with a diameter of 19 to 40 nm whereas spherical particles were synthesized by the methanolic extract found smaller with size distribution ranging from 13 to 35 nm. The XRD pattern indicated that AgNPs formed by the reduction of Ag+ ions using the methanolic extract were crystal-like in nature. The functional groups of the methanolic extract involved in synthesis and stabilization of AgNPs were investigated by FTIR. In addition, AgNPs containing methanolic extract showed higher antioxidant activity.Conclusion: The disc diffusion and agar well diffusion methods revealed the antimicrobial potential of these particles exhibited remarkable antimicrobial activity against Gram positive and Gram negative bacteria and a fungus. The production of silver nanoparticles using plant extract is rapid, low cost and eco-friendly. Silver nanoparticles can be used as an antiseptic to sterilize the surrounding area and the hospital wastes.
背景:本研究旨在研究不同提取方法对菝葜中银纳米颗粒(AgNPs)形貌、理化特性和抗菌性能的影响。方法:采用两种提取方法制备AgNPs。采用扫描电镜(SEM)、紫外可见光谱(UV-Vis)、x射线衍射(XRD)和红外光谱(FTIR)等技术对所得纳米颗粒的性质进行了表征。SEM图像显示,两种不同提取类型的AgNPs具有不同的形状、大小和形态。结果:紫外可见光谱通过观察到450 nm左右明显的表面等离子体共振带证实了AgNPs的形成。SEM图像显示,两种不同提取类型的AgNPs具有不同的形状、大小和形态。水提物制备的AgNPs为棒状,直径为19 ~ 40 nm;甲醇提物制备的AgNPs为球形,粒径较小,分布在13 ~ 35 nm之间。XRD谱图表明,甲醇萃取物对Ag+离子还原后形成的AgNPs呈晶体状。利用红外光谱研究了甲醇提取物参与AgNPs合成和稳定的官能团。此外,含有甲醇提取物的AgNPs具有较高的抗氧化活性。结论:通过圆盘扩散法和琼脂孔扩散法研究表明,该颗粒对革兰氏阳性菌和革兰氏阴性菌及一种真菌均有明显的抑菌活性。利用植物提取物制备纳米银具有快速、低成本、环保等优点。银纳米粒子可以作为一种防腐剂,对周围地区和医院废物进行消毒。
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引用次数: 3
Investigation of antibacterial and antifungal activities of essential oils of Lippia javanica and Lantana camara (Verbenaceae) harvested in the Haut-Katanga (DR Congo) 刚果(金)上加丹加省收获的爪哇利皮和马鞭草(马鞭草科)精油的抑菌和抗真菌活性研究
Pub Date : 2021-06-08 DOI: 10.22034/IJABBR.2021.525721.1353
Mbayo Kitambala Marsi, Kalonda Mutombo Emery, Muhune K Simon, Numbi Wa Ilunga Evodie, Muyumba Nonga Welcome, L. Tresor, Misenga T Antoinette, D. Tantoh, Mbayo Mukala Joseph, Maloba Mwinesenge James, Mulamba Muidikija Jean, T. M. Mwene-Mbeja, Lumbu Simbi Jean-Baptiste
Background: Essential oils are volatile compounds characterized by a strong odor, and are generally biosynthesized by aromatic plants as secondary metabolites. This paper aims to extract the essential oils of Lippia javanica and Lantana camara, and to evaluate their antibacterial, and antifungal activities. Methods: The aerial parts of Lippia javanica and Lantana camara were subjected to hydrodistillation to produce the essential oil. The antimicrobial potential was characterized against six microorganisms, signifying three Gram-negative bacteria (Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa), two Gram-positive bacteria (Staphylococcus aureus and Streptococcus pneumoniae) and one fungus(Candida albicans) by the disc diffusion method to determine the inhibition zone (in mm) and dilution method to determine the minimal inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC). Results: Essential oil extraction was carried out with an average yield of 0.21% for Lippia javanica, and 0.11% for Lantana camara. The evaluation of the antimicrobial activity showed that Lippia javanica essential oil had a moderate inhibitory activity on Klebsiella pneumoniae, and Streptococcus pneumoniae (MIC: 0.76 mg/mL), on Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa (1.50 mg/mL). The Lantana camara essential oil showed weak inhibitory activity against all strains tested. By diffusion disk method, it was found that Klebsiella pneumoniae was the most sensitive on Lippia javanica essential oil with an inhibition diameter, which evolved from 7 mm to 24 mm; followed by Pseudomonas aeruginosa (21 mm), Escherichia coli (19 mm) and Streptococcus pneumoniae (13 mm) at 15 μL. By means of dilution method, the Lantana camara essential oil showed a low activity against Escherichia coli (MIC: 1.64 mg/mL), Klebsiella pneumonia (MIC: 1.64 mg/mL), Staphylococcus aureus (MIC: 3.28 mg/mL), Pseudomonas aeruginosa (MIC: 3.28 mg/mL), and Candida albicans (MIC: 3.28 mg/mL) but by disc diffusion method, this oil was slightly inhibitory activity on Escherichia coli (10 mm at 15 μL). For the antifungal activity, the Lantana camara essential oil, and Germicide were inactive on Candida albicans when tested by the disk method. Conclusion: The essential oil of Lippia javanica showed moderate antibacterial and antifungal activities, while the essential oil of Lantana camara showed low activity. The activities of essential oils studied were less than that of the gentamicin and more than the activity of Germicide, with two positive controls used.
背景:精油是一种具有强烈气味的挥发性化合物,通常是芳香植物的次生代谢产物。本文旨在提取爪哇利皮和山楂叶精油,并对其抑菌和抗真菌活性进行评价。方法:采用加氢蒸馏法提取爪哇利皮和山楂的地上部分,提取其精油。对6种微生物进行抑菌潜力测定,分别为3种革兰氏阴性菌(大肠杆菌、肺炎克雷伯菌和铜绿假单胞菌)、2种革兰氏阳性菌(金黄色葡萄球菌和肺炎链球菌)和1种真菌(白色念珠菌),采用盘片扩散法测定抑菌带(mm),稀释法测定最小抑菌浓度(MIC)和最小杀菌浓度(MBC)。结果:提取的精油平均得率为0.21%,毛大蕉平均得率为0.11%。抑菌活性评价表明,甘草精油对肺炎克雷伯菌、肺炎链球菌(MIC: 0.76 mg/mL)、大肠杆菌、金黄色葡萄球菌和铜绿假单胞菌(MIC: 1.50 mg/mL)具有中等抑菌活性。山楂精油对所有菌株的抑菌活性均较弱。扩散盘法发现,肺炎克雷伯菌对甘草精油最敏感,抑制直径从7 mm到24 mm不等;其次是铜绿假单胞菌(21 mm)、大肠杆菌(19 mm)和肺炎链球菌(13 mm),浓度为15 μL。稀释法对大肠埃希菌(MIC: 1.64 mg/mL)、肺炎克雷伯菌(MIC: 1.64 mg/mL)、金黄色葡萄球菌(MIC: 3.28 mg/mL)、铜绿假单胞菌(MIC: 3.28 mg/mL)、白色念珠菌(MIC: 3.28 mg/mL)的抑菌活性较低,而盘片扩散法对大肠埃希菌(10 mm, 15 μL)的抑菌活性较低。在抗真菌活性方面,经圆盘法测定,山楂精油和杀菌剂对白色念珠菌无活性。结论:鸦嘴油具有中等抑菌和抗真菌活性,而山楂油具有较低的抑菌和抗真菌活性。使用两个阳性对照时,精油的活性低于庆大霉素,而高于杀菌剂。
{"title":"Investigation of antibacterial and antifungal activities of essential oils of Lippia javanica and Lantana camara (Verbenaceae) harvested in the Haut-Katanga (DR Congo)","authors":"Mbayo Kitambala Marsi, Kalonda Mutombo Emery, Muhune K Simon, Numbi Wa Ilunga Evodie, Muyumba Nonga Welcome, L. Tresor, Misenga T Antoinette, D. Tantoh, Mbayo Mukala Joseph, Maloba Mwinesenge James, Mulamba Muidikija Jean, T. M. Mwene-Mbeja, Lumbu Simbi Jean-Baptiste","doi":"10.22034/IJABBR.2021.525721.1353","DOIUrl":"https://doi.org/10.22034/IJABBR.2021.525721.1353","url":null,"abstract":"Background: Essential oils are volatile compounds characterized by a strong odor, and are generally biosynthesized by aromatic plants as secondary metabolites. This paper aims to extract the essential oils of Lippia javanica and Lantana camara, and to evaluate their antibacterial, and antifungal activities. Methods: The aerial parts of Lippia javanica and Lantana camara were subjected to hydrodistillation to produce the essential oil. The antimicrobial potential was characterized against six microorganisms, signifying three Gram-negative bacteria (Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa), two Gram-positive bacteria (Staphylococcus aureus and Streptococcus pneumoniae) and one fungus(Candida albicans) by the disc diffusion method to determine the inhibition zone (in mm) and dilution method to determine the minimal inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC). Results: Essential oil extraction was carried out with an average yield of 0.21% for Lippia javanica, and 0.11% for Lantana camara. The evaluation of the antimicrobial activity showed that Lippia javanica essential oil had a moderate inhibitory activity on Klebsiella pneumoniae, and Streptococcus pneumoniae (MIC: 0.76 mg/mL), on Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa (1.50 mg/mL). The Lantana camara essential oil showed weak inhibitory activity against all strains tested. By diffusion disk method, it was found that Klebsiella pneumoniae was the most sensitive on Lippia javanica essential oil with an inhibition diameter, which evolved from 7 mm to 24 mm; followed by Pseudomonas aeruginosa (21 mm), Escherichia coli (19 mm) and Streptococcus pneumoniae (13 mm) at 15 μL. By means of dilution method, the Lantana camara essential oil showed a low activity against Escherichia coli (MIC: 1.64 mg/mL), Klebsiella pneumonia (MIC: 1.64 mg/mL), Staphylococcus aureus (MIC: 3.28 mg/mL), Pseudomonas aeruginosa (MIC: 3.28 mg/mL), and Candida albicans (MIC: 3.28 mg/mL) but by disc diffusion method, this oil was slightly inhibitory activity on Escherichia coli (10 mm at 15 μL). For the antifungal activity, the Lantana camara essential oil, and Germicide were inactive on Candida albicans when tested by the disk method. Conclusion: The essential oil of Lippia javanica showed moderate antibacterial and antifungal activities, while the essential oil of Lantana camara showed low activity. The activities of essential oils studied were less than that of the gentamicin and more than the activity of Germicide, with two positive controls used.","PeriodicalId":13887,"journal":{"name":"International journal of Advanced Biological and Biomedical Research","volume":"132 1","pages":"254-269"},"PeriodicalIF":0.0,"publicationDate":"2021-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89329644","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
Evaluation of Antimicrobial Activity of Rhazya Stricta (Apocynaceae) Extract Prepared with Different Solvents on Staphylococcus Aureus (Staphylococcaceae) Isolated from Humans 不同溶剂制备的麻藤提取物对人源金黄色葡萄球菌的抑菌活性评价
Pub Date : 2021-06-06 DOI: 10.22034/IJABBR.2021.528883.1357
M. Beigomi, Laleh Shahraki-Mojahed, Batool Heydari-Sadegh, Narjes Dahmardeh, Reza Rouhani, Fereshteh Javadian
Introduction: Bacterial resistance to antibiotics, the first major concern in the 1960s, has reappeared worldwide over the past 20 years. Because these bacteria are not resistant to various conventional therapies, the medicinal and herbal plants used in different countries should be evaluated for their therapeutic potential. These valuable biological resources are a repository of complex active molecules. Therefore, in this study, we tried to evaluate the antimicrobial activity of some medicinal plant extracts on Staphylococcus aureus isolated from humans. Methods: Rhazya stricta was collected and their species were identified in the botanical laboratory of University of Zabol. To prepare plant extract, 40 g of dried leaves were used in 400 cc of solvent (aqueous, ethanol, methanol, ethyl acetate, and hydro-alcoholic). The various strains of Staphylococcus aureus used in this study were isolated from the human nose and identified by biochemical, bacteriological and growth tests as well as standard tests. Antimicrobial effects were investigated by well diffusion method in Muller Hinton agar medium. Statistix ver10 software was used for statistical calculations. Mean comparison was performed using the LSD at the level of one percent and Excel software was also used to draw the shapes. Results: Rhazya stricta extracts had different inhibitory zone diameters against Staphylococcus aureus at 100 ppm dilution (p <0.01). R. stricta ethanolic extract had the greatest effect (average 8.3 mm) on inhibiting the growth of 6 strains of S. aureus. Then aqueous and hydroalcoholic extracts with an average of 7 mm were in the next ranks. The ethyl acetate extract had the lowest effect on the inhibition of S. aureus. The lowest MIC of R. stricta ethanolic extract against S. aureus samples was 3.1 ppm, which was inhibited by four strains. The lowest MBC was 6.2 ppm. Conclusion: Considering the side effects of chemical drugs and antibiotics as well as the potential effect of ethanolic extract of Rhazya stricta on Staphylococcus aureus, it is recommended to use ethanol solvent to evaluate the antimicrobial activity of R. stricta.
细菌对抗生素的耐药性是20世纪60年代的第一个主要问题,在过去20年里在世界范围内再次出现。由于这些细菌对各种常规疗法没有耐药性,因此应评估不同国家使用的药用植物和草药的治疗潜力。这些宝贵的生物资源是复杂活性分子的储存库。因此,在本研究中,我们试图评价一些药用植物提取物对人源金黄色葡萄球菌的抑菌活性。方法:采自扎布尔大学植物实验室,对其种类进行鉴定。为制备植物提取物,将40 g干叶放入400 cc溶剂(水、乙醇、甲醇、乙酸乙酯和水酒精)中。本研究中使用的各种金黄色葡萄球菌菌株是从人鼻子中分离出来的,并通过生化、细菌学和生长试验以及标准试验进行鉴定。采用孔扩散法在Muller Hinton琼脂培养基上研究其抑菌效果。采用statisticx ver10软件进行统计计算。使用1%浓度的LSD进行平均比较,并使用Excel软件绘制形状。结果:100 ppm稀释条件下,苦楝提取物对金黄色葡萄球菌的抑菌带直径不同(p <0.01)。对6株金黄色葡萄球菌生长的抑制效果最大,平均为8.3 mm。其次是平均为7 mm的水提液和水醇提液。乙酸乙酯提取物对金黄色葡萄球菌的抑制作用最低。严格螺旋藻乙醇提取物对金黄色葡萄球菌的最低MIC为3.1 ppm,被4种菌株抑制。最低的MBC为6.2 ppm。结论:考虑到化学药物和抗生素的毒副作用,以及赤藤醇提物对金黄色葡萄球菌的潜在作用,建议采用乙醇溶剂评价赤藤的抑菌活性。
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引用次数: 1
Antioxidant Properties of Ferulic Acid on cardiovascular diseases 阿魏酸对心血管疾病的抗氧化作用
Pub Date : 2021-06-03 DOI: 10.22034/IJABBR.2021.525197.1350
F. Fazeli
Background: As a dietary phytochemical, Ferulic acid (FA) is caused by metabolism between phenylalanine and tyrosine with physiological functions like anti-inflammatory, anti-diabetic, anticancer, antioxidant, antimicrobial and cardioprotective properties. This study aims to investigate FA protective effects on cardiovascular diseases. Methods: We covered references like these, web-based scientific databases, PubMed publications, ScienceDirect and Springer. Recent patent on FA therapeutic function in treatment of cardiovascular diseases potential was evaluated. Results: Studies showed that foods rich in FA prevent hypertension. FA, a free radical scavenger, is an enzyme inhibitor which catalyzes free radical generation and enhances scavenger enzyme activity. As a potent scavenger of free radicals, it dilutes oxidative stress, and reduces elevated blood-pressure by improving endothelial function and increasing bioavailability of this oxide in arterial vasculature. FA can enhance angiogenesis and wound healing. Conclusion: In this review, protective function of FA, an antioxidant compound in some nutrition such as fruits, vegetables, and grains, was discussed in terms of its relationship with cardiovascular diseases. Despite numerous data on FA, its effects on human is not recognized; further clinical studies about therapeutic effects of FA on patients with vascular diseases are required.
背景:阿魏酸(Ferulic acid, FA)是一种膳食植物化学物质,由苯丙氨酸和酪氨酸之间的代谢产生,具有抗炎、抗糖尿病、抗癌、抗氧化、抗菌和保护心脏等生理功能。本研究旨在探讨FA对心血管疾病的保护作用。方法:我们涵盖了这些参考文献,基于网络的科学数据库,PubMed出版物,ScienceDirect和Springer。对FA治疗心血管疾病的潜力进行了评价。结果:研究表明富含FA的食物可以预防高血压。FA是一种自由基清除剂,是一种酶抑制剂,可以催化自由基的产生,提高清除酶的活性。作为一种有效的自由基清除剂,它通过改善内皮功能和增加动脉血管中这种氧化物的生物利用度来稀释氧化应激,降低血压升高。FA能促进血管生成和伤口愈合。结论:本文综述了水果、蔬菜、谷物等营养物质中含有的抗氧化化合物FA的保护作用及其与心血管疾病的关系。尽管有大量关于FA的数据,但其对人体的影响尚不清楚;FA对血管疾病的治疗效果有待进一步的临床研究。
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引用次数: 2
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International journal of Advanced Biological and Biomedical Research
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