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Hylocereus undatus fruit extraction on percent yield using Design-Expert software: a revelation for the enormousness of temperature and contact time 使用Design-Expert软件提取裸盖菇果实的百分产量:温度和接触时间的巨大揭示
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_97_22
H. Ahad, Haranath Chinthaginjala, Ksheerasagare Tarun, G. Reddy, A. Adam, A. Ali, J. Krishna
Background Dragon fruits (Hylocereus undatus) are popular edible fruits of desert and dry-land origin. They are rich in constituents. An attempt was made to find the optimum temperature and duration of exposure for the effective extraction of content from the fruits using Design-Export software. Aim This study aims to see what effect temperature and duration have on dragon fruit (H. undatus) extraction. According to the literature, numerous attempts have been made to extract components from fruits and other plant parts. Materials and methods The authors made an attempt to check if independent variables had an effect on the dependent response. The Design-Expert software was used to control the impact of the independent variable on the response during the experiment’s design. Alternatively, samples were positioned, authenticated, and hauled out into the water, with independent factors (temperature and exposure time) affecting the response (percent yield). Results and conclusions According to the study, 40°C is the ideal temperature to extract the substance from the fruits, and the extraction and exposure times are directly proportional.
背景火龙果(Hylocereus undatus)是沙漠和旱地常见的食用水果。它们的成分丰富。试图使用Design Export软件找到从水果中有效提取内容物的最佳温度和暴露时间。目的研究温度和时间对火龙果提取的影响。根据文献,已经进行了多次从水果和其他植物部位提取成分的尝试。材料和方法作者试图检验自变量是否对因变量反应有影响。在实验设计过程中,使用Design Expert软件来控制自变量对响应的影响。或者,对样品进行定位、鉴定并拖到水中,独立因素(温度和暴露时间)影响反应(产率百分比)。结果与结论根据研究,40°C是从水果中提取该物质的理想温度,提取时间与暴露时间成正比。
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引用次数: 0
Recent advances in solid dispersion technique for enhancing biopharmaceutical properties of lumefantrine: an overview 固体分散技术提高卢明三烯生物制药性能的最新进展:综述
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_129_22
Priyanka Jurel, Anuj Garg
Background Lumefantrine is a widely used antimalarial agent in combination with artemether. It is poorly water soluble and belongs to the biopharmaceutical classification class II. In the last decade, various strategies have been explored for increasing its dissolution rate and oral bioavailability (BA). A literature review revealed that various approaches based on solid dispersion (SD) have been investigated for this purpose and also evaluated for their benefits in vivo. Therefore, the major focus of the present article is to review the research carried out on the SD of lumefantrine with different polymers in the last decade. This review also discusses the classifications of SD based on their molecular arrangements and the polymers or carriers used, along with their advantages and disadvantages. This review described different techniques to prepare a SD of lumefantrine and their effects on solubility, dissolution rates, and oral BA. The SD-based approaches showed promising potential for increasing the oral BA of lumefantrine.
背景鲁美ntrine是一种广泛应用的抗疟药物,与蒿甲醚联合使用。它的水溶性很差,属于生物制药分类II类。在过去的十年里,人们探索了各种提高其溶出率和口服生物利用度的策略。文献综述显示,基于固体分散体(SD)的各种方法已被研究用于此目的,并对其在体内的益处进行了评估。因此,本文的主要重点是回顾过去十年来对不同聚合物的流明三烯SD的研究。这篇综述还讨论了基于分子排列和所用聚合物或载体的SD的分类,以及它们的优缺点。这篇综述描述了制备流明三烯SD的不同技术及其对溶解度、溶出率和口服BA的影响。基于SD的方法显示出增加流明三ne口服BA的潜力。
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引用次数: 0
In vitro propagation and Agrobacterium-mediated genetic transformation of caraway (Carum carvi L.) 香菜(Carum carvi L.)的离体繁殖及农杆菌介导的遗传转化
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_136_22
E. Abdallah, A. Amer, Hanaa S. Omar, M. Hussein
Background and objective Carum carvi is one of the oldest-known cultivated herbs around the world. The caraway seeds are regarded as antispasmodic, astringent, and carminative, and are used in treating somatic stimulants, dyspepsia, colic, flatulent indigestion, diarrhea, and improved liver function. Tissue culture is a suitable strategy for producing large-scale plantlets with a high potential to produce superior-quality plants. Plant transformation methods help to improve food quality and help plants to resist biotic and abiotic stresses. The current study aimed to optimize in vitro propagation system and genetic transformation protocol by using the Agrobacterium-mediated method for caraway. Materials and methods The shoot tip was used as an explant. We investigated the effect of growth hormones, carbon sources, gelling agents, bacteria optical density, inoculation period, acetosyringone concentration, and cocultivation period on caraway regeneration and transformation system. Results and conclusion Maximum shoot response, numbers of shoots per explant, and shoot length were observed when placing shoot tips on Murashige and Skoog media supplemented with 5 μmol/l BA (6-benzyladenin), 1 μmol/l NAA (1-naphthaleneacetic acid), and 30 g/l of sucrose. Gellan gum products (gelrite and phyta gel) were superior to agar products (agar and bactoagar), especially when used with a concentration of 2.5 or 3 g/l. For transformation protocol, Agrobacterium infection was maximum at an optical density of 0.8 when inoculated with explant for 5 min in the presence of 100 μmol/l acetosyringone and cocultivated for 3 days. In this study, we presented a productive technique for propagation and an Agrobacterium-mediated transformation system that can be beneficial in genetic transformation and other plant biotechnology techniques.
背景与目的香芹是世界上最古老的栽培草本植物之一。香菜籽被认为具有解痉、收敛和胭脂红作用,用于治疗身体刺激、消化不良、绞痛、胀气性消化不良、腹泻和改善肝功能。组织培养是生产大规模植株的合适策略,具有生产优质植株的高潜力。植物转化方法有助于改善食物质量,帮助植物抵抗生物和非生物胁迫。本研究旨在利用农杆菌介导的方法优化香菜的体外繁殖体系和遗传转化方案。材料与方法以茎尖为外植体。研究了生长激素、碳源、胶凝剂、细菌光密度、接种期、乙酰丁香酮浓度和共培养期对香菜再生转化系统的影响。结果和结论在Murashige和Skoog培养基上添加5 μmol/l BA(6-苄基腺嘌呤),1 μmol/l NAA(1-萘乙酸)和30 g/l蔗糖。盖兰胶产品(凝胶石和植酸酶凝胶)优于琼脂产品(琼脂和菌剂),尤其是当使用浓度为2.5或3时 g/l。对于转化方案,当用外植体接种5小时时,农杆菌感染在光密度为0.8时最大 在100 μmol/l乙酰丁香酮,共培养3天。在这项研究中,我们提出了一种繁殖的生产技术和农杆菌介导的转化系统,该系统可用于遗传转化和其他植物生物技术。
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引用次数: 0
Remarkable improvement of levansucrase production from a newly isolated Aspergillus niger MK788296 strain using agro-industrial wastes through statistical optimization techniques 利用统计优化技术显著提高黑曲霉MK788296菌株利用农用工业废弃物生产蔗糖酶的效果
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_92_22
Nermeen Elzairy, F. Mostafa, W. A. Wahab, M. Abdel-Naby, Yasser M Ragab, A. Hashem
Background and objective Microbial levansucrase (LS) is a good source for the production of biologically active fructo-oligosaccharides and levan, which have diverse applications in pharmaceutical industries. Therefore, recent studies have focused on the enhancement of LS production through searching for potent microbial producers and optimization of the fermentation conditions. The present study aimed to use agro-industrial waste as a cost-effective carbon source for LS production and maximize the enzyme yield by optimization of the cultural conditions. Materials and methods A potent fungal producer of LS was isolated from an Egyptian soil sample that was collected from Giza Governorate at a depth of 5 cm and identified based on internal transcribed spacer identification and then submitted to the gene bank database. The production of LS by the isolated strain was optimized by evaluating the best fermentation state and agro-industrial waste to be used in the fermentation process. After that, further optimization of culture medium composition was established by two statistical designs: the Plackett–Burman design followed by central composite design. Results and conclusion The isolated strain was identified as Aspergillus niger MK788296. The first optimization approach declared that using the submerged fermentation technique and utilizing potato peels as the main carbon source led to a 2.4-fold increase in LS production. The statistical optimization resulted in a massive LS production (18870.3 U/ml) with a 59.4-fold increase in enzyme yield than the nonoptimized culture conditions.
背景与目的微生物葡糖酶(LS)是生产具有生物活性的低聚果糖和葡糖的良好来源,在制药工业中有着广泛的应用。因此,最近的研究集中在通过寻找有效的微生物生产者和优化发酵条件来提高LS的产量。本研究旨在利用农业工业废物作为LS生产的成本效益高的碳源,并通过优化培养条件最大限度地提高酶产量。材料和方法从埃及吉萨省采集的深度为5 cm,并基于内部转录的间隔区鉴定进行鉴定,然后提交到基因库数据库。通过评估最佳发酵状态和发酵过程中使用的农业工业废物,对分离菌株生产LS进行了优化。之后,通过两种统计设计建立了培养基组成的进一步优化:Plackett–Burman设计和中央复合设计。结果与结论分离菌株经鉴定为黑曲霉MK788296。第一种优化方法表明,使用深层发酵技术并利用土豆皮作为主要碳源,LS产量增加了2.4倍。统计优化导致了大规模的LS生产(18870.3 U/ml),酶产量比未优化的培养条件增加59.4倍。
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引用次数: 0
Isolation, characterization, and molecular identification of probiotics showing promising hypoglycemia operating activities 具有良好降糖作用的益生菌的分离、表征和分子鉴定
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_137_22
Abdel-Whhab Hegazy, A. El-Waseif, D. Maany
Background Probiotics are the most useful microorganisms for animal and human health; they are used in the pharmaceutical and food industries for many products that enhance digestion and immunity. Objective The objective of our study was to isolate, characterize, and identify a probiotic bacterial strain and determine its hypoglycemia operating parameters. Materials and methods Our research was carried out through the isolation of probiotic colonies from milk samples on MRS medium. Bacterial isolates were characterized both morphologically and biochemically. The collected bacterial isolates were tested for their low pH tolerance on phosphate buffer pH 2.0 and bile salt tolerance in MRS-THIO liquid medium. Glucose assimilation activity was tested by measuring the residual glucose concentration on MRS liquid medium at 37°C after 24 and 48 h by GOD-PAP enzymatic colorimetric method. The initial glucose concentration was 500 mg/dl. The most potent isolate was identified by methods of 16S-rDNA sequencing. Results and conclusion Twenty-one bacterial isolates were isolated and characterized. Bacterial isolates showed the highest resistance to acidic pH 2.0 and they were bile-tolerant. Results of glucose assimilation showed that there was a marked increase in sugar consumption rate after 48 h more than 24 h in most of the bacterial isolates. The top 10 isolates were selected for the testing of the rest of the parameters. Results show that no noticeable differences were observed in the consumption of glucose in the low-glucose concentration, but with more glucose concentration more glucose consumption rate differences were recorded among organisms. The top two organisms that have the ability to reproduce and consume glucose even in high-glucose concentrations were Ab 9 and Ab 2 with results of glucose residual concentration of 108 and 124 mg/dl, respectively. The phylogenetic tree showed that the most potent isolate Ab 2 was identified as Lactobacillus brevis.
背景益生菌是对动物和人类健康最有用的微生物;它们被用于制药和食品行业,用于许多增强消化和免疫力的产品。目的本研究的目的是分离、表征和鉴定一种益生菌菌株,并确定其低血糖操作参数。材料和方法我们的研究是通过在MRS培养基上从牛奶样品中分离益生菌菌落来进行的。细菌分离物在形态和生化上都有特征。测试收集的细菌分离株在pH 2.0的磷酸盐缓冲液中的低pH耐受性和在MRS-THIO液体培养基中的胆盐耐受性。通过测量24和48小时后37°C下MRS液体培养基上的残余葡萄糖浓度来测试葡萄糖同化活性 h。初始葡萄糖浓度为500 mg/dl。通过16S rDNA测序方法鉴定出最有效的分离株。结果与结论共分离鉴定出21株细菌。细菌分离株对酸性pH 2.0表现出最高的抗性,并且具有胆汁耐受性。葡萄糖同化的结果表明,48小时后糖的消耗率显著增加 h超过24 h。选择前10个分离株进行其余参数的测试。结果表明,在低葡萄糖浓度下,葡萄糖消耗没有观察到显著差异,但随着葡萄糖浓度的增加,生物体之间的葡萄糖消耗率差异越来越大。即使在高葡萄糖浓度下也有能力繁殖和消耗葡萄糖的前两种生物是Ab 9和Ab 2,葡萄糖残留浓度分别为108和124 mg/dl。系统发育树表明,最有效的分离株Ab2被鉴定为短乳杆菌。
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引用次数: 0
Ketamine induces schizophrenia-like condition in rats via amendment of neurotransmitters and behavior: antipsychotic effect of silkworm pupae 氯胺酮通过调节神经递质和行为诱导大鼠精神分裂症样状态:蚕蛹的抗精神病作用
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_61_22
Gehan S Georgy, Amany M Gad, H. Anwar, R. Taha, Aliaa A. M. Hassan
Background The pupae of mulberry silkworms, family Bombycidae, possess a great number of proteins that cover all of the necessary amino acids obligatory for well-being. Objective In this study, we aimed to evaluate the probable antipsychotic effect of pupae of mulberry silkworms in a rat model of schizophrenia prompted by ketamine on the cerebral cortex, hippocampus, and striatum, the brain areas involved in neuropsychiatric complaints. Materials and methods To this end, male albino rats were classified as follows: group 1 was the control group; group 2 animals were administered 135 mg/kg, p.o. silkworm pupae for 3 weeks; group 3 animals received vehicle for 3 weeks, and ketamine (30 mg/kg, i.p.) for the last 5 consecutive days of the experiment; and group 4 was the silkworm pupae and ketamine-treated group. Results The results revealed that treatment with silkworm pupae improved the exploration of schizophrenic rats in the novel object test and almost normalized their locomotor activity in the open field test. Additionally, silkworm pupae modulated the content of catecholamines and oxidative state in the cerebral cortex, hippocampus, and striatum of schizophrenic rats; however, the acetylcholine esterase activity was restored in the hippocampus only. Histopathological damages caused by ketamine are partially reduced by silkworm pupae. Conclusion Our data suggest that silkworm pupae, via neurobehavioral modulatory pathway, exhibit beneficial effects against psychomimetic influence of ketamine.
背景家蚕科桑蚕的蛹含有大量的蛋白质,这些蛋白质覆盖了健康所必需的所有氨基酸。目的在本研究中,我们旨在评估桑蚕蛹在氯胺酮诱导的精神分裂症大鼠模型中对大脑皮层、海马体和纹状体的抗精神病作用。材料与方法将雄性白化大鼠分为:第一组为对照组;第2组给药135只 mg/kg,p.o.蚕蛹3周;第3组动物接受载体治疗3周,并接受氯胺酮(30 mg/kg,腹膜内注射);第4组为蚕蛹和氯胺酮治疗组。结果蚕蛹处理能提高精神分裂症大鼠在新对象试验中的探索能力,并能使其在野外试验中的运动活动几乎正常化。此外,蚕蛹还调节了精神分裂症大鼠大脑皮层、海马和纹状体的儿茶酚胺含量和氧化状态;然而,乙酰胆碱酯酶活性仅在海马中恢复。蚕蛹可部分减少氯胺酮引起的组织病理学损伤。结论蚕蛹通过神经行为调节途径,对氯胺酮的心理模拟作用有一定的抑制作用。
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引用次数: 0
Synergistic effect of honey in combination with silver nanoparticles on isolated pathogens from urinary tract infection 蜂蜜与纳米银对尿路感染病原菌的协同作用
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_160_22
N. Guruvu, K. Gayathri, D. Lakshmi Lalitha, L. S. Simhachalam Kutikuppala, P. Vegi
Background Urinary tract infections (UTIs) are the most prevalent bacterial infections, affecting 150 million people worldwide each year. UTIs can be caused by a variety of pathogens, but Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Proteus mirabilis are the most frequent culprits. The growth and development of antibiotic-resistant bacteria are currently a major worry for the international health community. Looking for a treatment substitute could be effective in tackling this issue. The honey has a low pH (mean 4.4) value, which makes it unfavorable for bacterial growth; undiluted honey combination with silver nanoparticles (AgNPs) shows synergistic antimicrobial effect and helps lessen infection. Aim This study was undertaken to find out the effectiveness of honey containing AgNPs in the antibacterial activity of isolated urine pathogens. Patients and methods A total of 30 patients with UTI were included through purposive sampling technique, and urine samples were collected from them. A semiquantitative approach was used to cultivate specimens of urine on MacConkey agar and blood agar. After 24 h of incubation, bacterial growth was seen on the plates. Then, colonies were counted and the number of microorganisms per milliliter in the original material was calculated by multiplying the number of CFUs by 1000. Results A total of 10 bacterial isolates were found in the 30 urine samples, and biochemical studies showed that these isolates were from three different species. The most common strain of E. coli represented 82%, followed by P. aeruginosa (12%) and P. mirabilis (6%). In all three organisms examined with undiluted honey mixed with AgNPs, the zone of inhibition was more pronounced when compared with only honey, AgNPs, and diluted honey mixed with AgNPs. Conclusion The results of the current investigation showed that multifloral honey combined with AgNPs was effective against urinary infections.
尿路感染(uti)是最普遍的细菌感染,每年影响全球1.5亿人。尿路感染可由多种病原体引起,但大肠杆菌、金黄色葡萄球菌、铜绿假单胞菌、肺炎克雷伯菌和神奇变形杆菌是最常见的罪魁祸首。耐抗生素细菌的生长和发展是目前国际卫生界的一个主要担忧。寻找一种替代疗法可以有效地解决这个问题。蜂蜜的pH值较低(平均4.4),不利于细菌生长;未稀释的蜂蜜与银纳米颗粒(AgNPs)结合显示出协同抗菌作用,有助于减少感染。目的研究含AgNPs蜂蜜对尿分离病原菌的抑菌作用。患者与方法采用目的采样技术,对30例尿路感染患者进行尿液采集。采用半定量方法在麦康基琼脂和血琼脂上培养尿液标本。孵育24小时后,培养皿上可见细菌生长。然后,计数菌落,用cfu数乘以1000计算每毫升原始材料中微生物的数量。结果30份尿样中共分离出10株细菌,经生化鉴定为3种不同的菌株。最常见的大肠杆菌菌株占82%,其次是铜绿假单胞菌(12%)和神奇假单胞菌(6%)。在用未稀释蜂蜜与AgNPs混合检测的所有三种生物体中,与仅蜂蜜、AgNPs和稀释蜂蜜与AgNPs混合相比,抑制区更为明显。结论多花蜂蜜联合AgNPs对泌尿系感染有较好的治疗作用。
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引用次数: 1
The effect of ascorbic acid on histopathological, biochemical, pharmacological, and immunological toxicity of chronic lead acetate exposure on the spleen in a rat model 抗坏血酸对慢性醋酸铅暴露大鼠脾的组织病理学、生化、药理学和免疫学毒性的影响
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_164_22
R. Ahmed, M. Mwaheb, M. Elmahdi, Mohamed M. khamiss Abd elguaad, D. Eldosoki, E. Mohamed, A. Helal, S. Gaber
Objective To evaluate the effect of vitamin C on histopathological, biochemical, and immunotoxicity of chronic lead exposure in the spleen of a rat model. Methods The rats were divided into five groups of 10 rats each: group I received normal saline orally as a control group; groups II and III received lead acetate for 4 and 8 weeks, respectively; and groups IV and V received lead acetate and vitamin C for 4 and 8 weeks, respectively. The spleen was excised and processed for light, electron microscopic, histopathological, and biochemical analyses. Quantitative assessments of matrix metalloproteinase-2 (MMP-2), MMP-9, interleukin-2 (IL-2), IL-6, and tumor necrosis factor-alpha gene expressions were performed by real-time PCR. Results The examination of control and vitamin C with lead acetate supplemented groups revealed normal splenic architecture. In contrast, the spleen of lead-intoxicated groups exhibited degenerative changes in the spleen, with a significantly decreased expression of IL-2, glutathione peroxidase, superoxide dismutase, and hemoglobin (P<0.05), with significantly increased proinflammatory cytokine (IL-6 and tumor necrosis factor-alpha) expressions, concomitantly with increased oxidative products (malondialdehyde) and protease enzymes (MMP-2 and MMP-9) in the spleen tissues. The coadministration of vitamin C with lead for 4 weeks markedly resolved these changes. Conclusion This study may specify the efficiency of vitamin C in lead toxicity prevention in the spleen, represented by the reduced splenic harmful changes produced by lead administration.
目的探讨维生素C对慢性铅暴露大鼠脾组织病理学、生化及免疫毒性的影响。方法将大鼠分为5组,每组10只:1组口服生理盐水作为对照组;II组和III组分别给予醋酸铅治疗4周和8周;IV组和V组分别给予醋酸铅和维生素C治疗,疗程4周和8周。切除脾脏,进行光镜、电镜、组织病理学和生化分析。实时荧光定量PCR检测基质金属蛋白酶-2 (MMP-2)、MMP-9、白细胞介素-2 (IL-2)、IL-6和肿瘤坏死因子- α基因的表达。结果对照组和维生素C加醋酸铅组脾结构正常。铅中毒组脾脏出现退行性改变,IL-2、谷胱甘肽过氧化物酶、超氧化物歧化酶、血红蛋白表达显著降低(P<0.05),促炎细胞因子(IL-6、肿瘤坏死因子α)表达显著升高,脾组织氧化产物(丙二醛)和蛋白酶(MMP-2、MMP-9)表达升高。维生素C与铅联合服用4周后,这些变化明显缓解。结论本研究可能阐明了维生素C对脾脏铅中毒的预防作用,其表现为减轻铅对脾的有害改变。
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引用次数: 0
Community pharmacy services in Middle Eastern Arab countries: consumers’ perspective 中东阿拉伯国家社区药房服务:消费者视角
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_162_22
Hisham Razzaq, S. Sulaiman, Sabin Thomas
Over the past few decades, the role of pharmacists has been shifted from medicines to patients’ care. This article is a literature review of the several published works concerning consumers’ perceptions toward community pharmacy services (CPS) from different Middle Eastern Arab countries (MEACs). To identify consumers’ perspectives toward CPS in the MEACs. Standard search strategies were adopted using PubMed, ScienceDirect and Google Scholar for the published literatures (n=22) related to CPS in MEACs in the period between 2000 and 2022. All articles assessing customers’ perception towards CPS in the MEAC. Three themes were identified from the review articles: consumers’ perception toward community pharmacy practice, consumers’ perception toward the role of community pharmacists (CPs) and indicators to develop community pharmacy practice. Consumers showed varied perception toward different aspects of community pharmacy practice. The public showed good understanding toward the traditional role of CPs. Moreover, public is interested to extend the role of CPs. Several barriers were identified that limit the public from seeking medical advice from CPs.
在过去的几十年里,药剂师的角色已经从药物转移到病人的护理。这篇文章是一个文献综述的几个已发表的作品关于消费者对社区药房服务(CPS)的看法从不同的中东阿拉伯国家(MEACs)。确定消费者对中等收入国家CPS的看法。使用PubMed、ScienceDirect和谷歌Scholar对2000 - 2022年MEACs发表的与CPS相关的文献(n=22)采用标准检索策略。在MEAC中评估客户对CPS的看法的所有文章。从综述文章中确定了三个主题:消费者对社区药房实践的看法,消费者对社区药剂师角色的看法以及发展社区药房实践的指标。消费者对社区药房实践的不同方面表现出不同的看法。市民对CPs的传统角色表示理解。此外,市民亦有兴趣扩展CPs的角色。确定了限制公众向儿科医生寻求医疗建议的几个障碍。
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引用次数: 0
Detection and molecular characterization of lipase-producing bacteria 脂肪酶产生菌的检测及其分子特性研究
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2023-01-01 DOI: 10.4103/epj.epj_98_22
Alawiah M. Alhebshi, Fadwa Al-Sayied, O. El-Hamshary
Background Lipase is a type of hydrolytic enzyme that has several applications and industrial efforts. Lipases are used as biological catalysts to manufacture products such as food ingredients and applied in making fine chemicals. The type of lipase produced from microbes, mainly from bacteria and fungi, represents the most widely used class of enzymes in biotechnological applications and organic chemistry. Microbial enzymes are also more stable than their corresponding plant and animal enzymes, and their production is more convenient and safer, which makes them more important in commercial uses. The oily environment of vegetable oil-processing factories, industrial wastes, soil contaminated with oil, and diesel fuel-polluted soil provides a suitable habitat for lipase-producing microorganisms. Objective This study aims to detect new strains of lipase-producing bacteria from diverse sources and different areas in Jeddah, Saudi Arabia. Furthermore, the detected bacterial strains have been identified based on morphological, biochemical, and molecular characterization. The plasmid profile of some isolated bacterial strains has been detected. Materials and methods A total of 36 soil samples contaminated with fuel and engine oil were collected from different areas in Jeddah, Saudi Arabia. Tween 20 medium was used to detect the lipolytic activity of the bacterial strains. The isolated bacteria in this study were identified by morphological and biochemical tests and 16SrRNA. Results and discussion Results showed that 53 isolates were positive and able to produce lipase, and 15 isolates have been selected as strong lipase-producing bacteria. The sequences were submitted to the NCBI GenBank under accession numbers, accession numbers, ON360988.1 for Acinetobacter sp. (FS5), ON360990.1 for Alcaligenes faecalis (FS8), ON360991.1 for Acinetobacter baumannii (FS9), ON360992.1 for Bacillus tropicus (FS10), ON360993.1 for A. baumannii (FS11), ON360994.1 for Sphingomonas aeria (FS15), and ON360996.1 for A. baumannii (FS17). Plasmids were isolated from selected strains that showed lipase production using a plasmid-isolation miniprep. Results indicated that isolates FS6 and FS15 have no plasmids, whereas FS8 has one plasmid (≈1295.5 bp). Furthermore, isolates FS10 and FS11 have two plasmids (≈1539.3 and 1295.5 bp). In addition, isolate FS9 has three plasmids (≈1539.3, 1295.5, and 417.7 bp). The isolates showed strong lipase activity and could be good sources for the production of lipase.
背景脂肪酶是一种具有多种应用和工业应用前景的水解酶。脂肪酶被用作生物催化剂,用于制造食品配料等产品,并用于制造精细化学品。由微生物(主要是细菌和真菌)产生的脂肪酶是生物技术应用和有机化学中应用最广泛的一类酶。微生物酶也比相应的植物和动物酶更稳定,生产更方便、更安全,这使它们在商业用途中更重要。植物油加工厂的含油环境、工业废物、被油污染的土壤和柴油污染的土壤为产脂肪酶的微生物提供了合适的栖息地。目的本研究旨在检测沙特阿拉伯吉达地区不同来源、不同地区的脂肪酶产生菌。此外,已根据形态学、生物化学和分子表征对检测到的菌株进行了鉴定。已经检测到一些分离菌株的质粒图谱。材料与方法从沙特阿拉伯吉达不同地区采集了36份被燃料和机油污染的土壤样品。用吐温20培养基检测菌株的脂肪分解活性。本研究分离的细菌通过形态学和生化测试以及16SrRNA进行鉴定。结果与讨论结果表明,53株菌株为阳性菌株,能产生脂肪酶,15株菌株被筛选为强脂肪酶产生菌。序列以登录号提交给NCBI GenBank。使用质粒分离小型制剂从显示脂肪酶产生的选定菌株中分离质粒。结果表明,分离株FS6和FS15没有质粒,而FS8只有一个质粒(≈1295.5bp)。此外,分离株FS10和FS11具有两个质粒(≈1539.3和1295.5bp)。此外,分离物FS9具有三个质粒(≈1539.3、1295.5和417.7bp)。分离物具有较强的脂肪酶活性,是生产脂肪酶的良好来源。
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Egyptian Pharmaceutical Journal
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