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Endotoxin lipopolysaccharide (LPS)-induced peripheral inflammation and its impact on brain and liver function 内毒素脂多糖(LPS)诱导的外周炎症及其对脑和肝功能的影响
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt037043
Hariprasad Shetty, Reshma A. Shetty
Endotoxin Lipopolysaccharide (LPS) induces an innate immune response and activates sickness behavior. During neuroinflammation, the activated microglial cells change its morphology and release various chemicals that could be harmful such as nitric oxide (NO), reactive oxygen species (ROS) and enzymes for proteolysis. Through the buildup of free radicals and ROS, these neuroinflammations can also result in oxidative stress. This ROS reacts with cellular macromolecules, triggering a cascade that results in membrane porosity caused by membrane lipid peroxidation (LPO), which is measured by the quantity of malondialdehyde (MDA). On LPS challenge, the complex behaviour that decreased common activities and explorations, is noticed and with rising anxiety, cognitive impairment and decreased social activities. It also decreased closed arm time, although closed arm entries were higher which may be related to the increased locomotion. It raised open arm time and open arm entries, suggesting of reduced anxiety and also increased exploratory behaviour. AChE and nNOS were increased in the forebrain part. Reduction in brainstem and MDA activity decreased on both forebrain and brain stem. MDA in the liver increased by LPS challenge indicating upregulated hepatic tissue damage and oxidative stress. As a result of LPS-induced lipid peroxidation and oxidative stress, brain Glutathione (GSH), a substrate for cytosolic Glutathione peroxidase, increased in the forebrain and decreased in the brainstem. Decreased scavenging of ROS was indicated by the LPS-induced decrease in liver GSH levels.
内毒素脂多糖(LPS)诱导先天免疫反应并激活疾病行为。在神经炎症期间,被激活的小胶质细胞改变其形态并释放各种可能有害的化学物质,如一氧化氮(NO)、活性氧(ROS)和蛋白质水解酶。通过自由基和活性氧的积累,这些神经炎症也会导致氧化应激。这种ROS与细胞大分子反应,触发级联反应,导致膜脂过氧化(LPO)引起的膜孔隙,这是通过丙二醛(MDA)的量来测量的。在LPS挑战下,常见活动和探索减少的复杂行为被注意到,并伴有焦虑、认知障碍和社交活动减少。它也减少了闭臂时间,尽管闭臂进入时间较高,这可能与运动增加有关。它增加了张开手臂的时间和张开手臂的次数,表明焦虑减少了,探索行为也增加了。前脑区AChE和nNOS升高。脑干的减少和MDA活性在前脑和脑干均下降。LPS刺激导致肝脏MDA升高,表明肝组织损伤和氧化应激上调。作为脂质过氧化和氧化应激的结果,脑谷胱甘肽(谷胱甘肽过氧化物酶的一种底物)在前脑增加,在脑干减少。脂多糖诱导的肝脏GSH水平下降表明活性氧清除能力下降。
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引用次数: 0
An effective and low-cost method for DNA extraction from Rheum species (A medicinal herb) without using liquid nitrogen for RAPD/ISSR Study 一种高效、低成本的不使用液氮提取大黄属植物DNA的RAPD/ISSR方法
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt1700174
Anjali Uniyal, Akhilesh Kumar, Vijay Kumar, Sanjay Gupta, Vivek Kumar
Rheum is an important medicinal plant belonging to family Polygonaceae and is found to have anti-microbial, anti-purgative and anti-cancer properties. The objective of the present study is to standardize an effective and low-cost method for the extraction of DNA from the young juvenile leaves of Rheum plant obtained from the Uttarakhand region. The protocol involved the extraction of DNA using a modified CTAB method without the use of any liquid nitrogen. The concentration of NaCl used in extraction buffer was slightly higher (1.4M) to remove polysaccharides and varying ratios of Beta-mercaptoethanol used to remove the secondary metabolites and keep them away from interfering the extraction process. The absorbance ratio of the extracted DNA at A260/280 nm was within the permissible range of 1.7-2.0, indicating the purity of DNA and showing that the DNA is contamination free. Its concentration was approximately 1485 ng/μl and it was found suitable for molecular-based study.
大黄是蓼科重要的药用植物,具有抗菌、通便、抗癌等作用。本研究的目的是规范一种有效和低成本的方法,从北阿坎德邦地区的大黄植物幼叶中提取DNA。该方案包括使用改良的CTAB法提取DNA,而不使用任何液氮。提取缓冲液中NaCl浓度稍高(1.4M)去除多糖,不同比例的β -巯基乙醇用于去除次生代谢物,使其不干扰提取过程。提取的DNA在A260/280 nm处的吸光度比在1.7-2.0的允许范围内,说明DNA纯度高,说明DNA无污染。其浓度约为1485 ng/μl,适于分子基础研究。
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引用次数: 0
Biogenic synthesis of Cerium oxide nanoparticles and their antioxidant activity 氧化铈纳米颗粒的生物合成及其抗氧化活性
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt023028
Gopinath Mamatha Madhugiri, Sultana Sumreen, Manohar Punekar Shital, M.B. Nivedika, Tekupalli Ravikiran
The present study aimed to bio-synthesize cerium oxide nanoparticles from the root extract of Withania somnifera (Ashwagandha) and to evaluate their antioxidant potential. In Indian Ayurvedic medicine, Withania somnifera has been used as a memory booster and to treat cancer and neurological disorders. Several characterization techniques such as XRD, FTIR, UV-Vis, Raman spectroscopy, SEM-EDX and HR-TEM, were used to confirm the formation of CeO2NPs. The characterization results indicate that synthesized NPs were spherical with crystalline nature and size <10nm. An OH radical scavenging assay was done to monitor the antioxidant property of synthesized CeO2NPs. The maximum absorbance at 532 nm was measured by discoloration from light pinkish to reddish-orange. CeO2NPs exhibited significant OH radical scavenging activity than vitamin C. Therefore, our results suggest that biogenic CeO2NPs have shown good antioxidant potential and may be used to treat oxidative stress-related diseases.
本研究旨在以苦参根提取物为原料,生物合成氧化铈纳米颗粒,并评价其抗氧化能力。在印度的阿育吠陀医学中,Withania somnifera被用作记忆增强剂,并用于治疗癌症和神经系统疾病。采用XRD、FTIR、UV-Vis、拉曼光谱、SEM-EDX和HR-TEM等表征技术证实了CeO2NPs的形成。表征结果表明,合成的纳米颗粒为球形,具有晶体性质,尺寸为10nm。通过OH自由基清除实验监测合成的CeO2NPs的抗氧化性能。532 nm处的最大吸光度由浅粉红色变为红橙色。CeO2NPs比维生素c具有明显的OH自由基清除活性。因此,我们的研究结果表明,生物源性CeO2NPs具有良好的抗氧化潜力,可能用于治疗氧化应激相关疾病。
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引用次数: 0
Association of Leukotriene A4 Hydrolase polymorphisms and risk of extrapulmonary tuberculosis 白三烯A4水解酶多态性与肺外结核风险的关系
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt1910197
Pooja Singh Gaur, Surya Kant, Rachna Chaturvedi
Genetic risk assessment of tuberculosis development and genotypic variation influence the gene and protein expression of leukotriene A4 hydrolase (LTA4H) at various sites of tuberculosis. The relationship between the genotype and phenotype of LATH4A was investigated in relation to the genetic risk assessment of extrapulmonary tuberculosis (EPTB). This study included 137 patients with EPTB and age-sex-matched 137 normal controls of the same ethnicity. LTA4H genotyping was performed using restriction fragment polymorphisms (RFLP) and protein level was analyzed using enzyme-linked immunosorbent assay (ELISA). The LTAH4 (rs.197833A/G) AG (codominant) and GG (recessive) genotypes showed 1.86 and 1.88-fold higher risks (p=0.0004 and p<0.0001 respectively) of developing EPTB. LTA4H (rs.2660898 T/G) TG (codominant) and GG (recessive) genotypes significantly increased the risk (OR:1.69, p=0.0001 and OR;1.77 p=0.008 respectively) of EPTB. Similarly, LTA4H (rs. 2540474) AG (codominant) and GG (recessive) genotypes (OR; 1.58 95% CI:1.22- 2.04, p<0.0001; OR, 1.86; 95%CI 1.37-2.52, p<0.0001) increased the risk of developing ETTB. The LTB4 protein levels were significantly higher in EPTB cases (mean ± SD; 3096.10±1287.6 pg/mL) than in controls (2304.50±644.15 pg/mL) (p<0.0001). LTA4H recessive variants influence protein levels (functional genetics), resulting in risk of EPTB.
结核发生的遗传风险评估和基因型变异影响白三烯A4水解酶(LTA4H)在结核不同部位的基因和蛋白表达。探讨LATH4A基因型与表型之间的关系,以评估肺外结核(EPTB)的遗传风险。本研究包括137例EPTB患者和年龄性别匹配的137例相同种族的正常对照。采用限制性内切片段多态性(RFLP)进行LTA4H基因分型,酶联免疫吸附试验(ELISA)分析蛋白水平。LTAH4 (rs.197833A/G) AG(共显性)和GG(隐性)基因型发生EPTB的风险分别为1.86倍和1.88倍(p=0.0004和p<0.0001)。LTA4H (rs.2660898 T/G)、TG(共显性)和GG(隐性)基因型显著增加EPTB发病风险(OR:1.69, p=0.0001和OR: 1.77 p=0.008)。同样,LTA4H (rs. 2540474) AG(共显性)和GG(隐性)基因型(OR;1.58 95% CI:1.22- 2.04, p<0.0001;或者,1.86;95%CI 1.37-2.52, p<0.0001)增加了发生ETTB的风险。EPTB患者LTB4蛋白水平显著升高(平均±标准差;3096.10±1287.6 pg/mL)高于对照组(2304.50±644.15 pg/mL) (p<0.0001)。LTA4H隐性变异影响蛋白水平(功能遗传学),导致EPTB的风险。
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引用次数: 0
Phytochemical and antioxidant analysis of musky smelling Dendrobium moschatum and screening of its antibacterial potential 麝香石斛的植物化学和抗氧化分析及其抗菌潜力筛选
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt1820190
D. Rajput, I. Gogoi, S. Saikia, L.R. Saikia, P. Chetia
In the realm of floriculture, orchids have attracted a lot of interest for their alluring and distinctive morphological looks. In the present study, the musky smelling orchid Dendrobium moschatum was screened for its phytochemical and antioxidant property analysis followed by characterization and isolation of bioactive compounds. The plant contained high amount of total phenolic content (TPC) and total flavonoid content (TFC) of 21.86 ± 0.44 and 12.52 ± 0.23 respectively. The acetone extract of leaf of D. moschatum was evaluated using GC-MS, TLC and NMR spectroscopy and based on these, 2H-1-benzopyran-2-one also termed as coumarin was isolated as the main bioactive compound. The crude extract of the species showed satisfactory results by inhibiting the growth of Gram-positive Bacillus subtilis at MIC 0.78 mg/mL, but not so effective against Gram-negative Escherichia coli and Klebsiella pneumoniae. This signifies that the plant is valuable source of essential bioactive compounds with potential antibacterial activity which is not only advantageous for its conservation in natural habitat but also for the development of therapeutic alternates against common bacterial infections.
在花卉栽培领域,兰花以其诱人和独特的形态外观吸引了很多人的兴趣。本研究对麝香兰花石斛(Dendrobium moschatum)进行了植物化学和抗氧化特性的筛选,并对其生物活性化合物进行了鉴定和分离。总酚含量(TPC)和总黄酮含量(TFC)分别为21.86±0.44和12.52±0.23。采用气相色谱-质谱、薄层色谱和核磁共振等方法对香豆叶丙酮提取物进行鉴定,分离出香豆素类化合物,主要活性成分为2h -1-苯并吡喃-2-酮。粗提物对革兰氏阳性枯草芽孢杆菌的抑菌效果较好,MIC为0.78 mg/mL,但对革兰氏阴性大肠杆菌和肺炎克雷伯菌的抑菌效果不佳。这表明该植物是具有潜在抗菌活性的必需生物活性化合物的宝贵来源,这不仅有利于其在自然栖息地的保护,而且有利于开发抗常见细菌感染的治疗替代品。
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引用次数: 0
Analysis of the ability of Channa striatus gut-derived Lactococcus garvieae bacteria to reach and persist in the gut environment along with extracellular metabolites and its behavior against common fish pathogens 斑马鱼肠道源性garvieae乳球菌与细胞外代谢产物到达肠道环境并持续存在的能力及其对常见鱼类病原体的行为分析
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt1110119
Sufiara Yousuf, Rahul Singh
Exploration of gut microbiota is a resource for researchers to study the range and role of micro-organisms. Exploring gut microbiota of fishes that survive in harsh environmental conditions, catches eye that opportunity of finding new strain may be more. The present study was undertaken to explore the gastrointestinal tract of adult Channa striatus collected from Doaba region of Punjab. A total of 34 isolates were isolated and screened for antimicrobial activity against fish pathogens: Aeromonas hydrophila and Pseudomonas aeruginosa. Four of these isolates were Gram positive. Of these four isolates, only one isolate PMS1 showed good antimicrobial activity against the Aeromonas hydrophila. The isolate exhibited high tolerance to low pH and strong adhesion capability. The isolate was found susceptible to all tested antibiotics. Based on in vitro assessment, biochemical and 16srRNA analysis the strain was identified as Lactococcus garvieae. Furthermore, extracellular metabolites were isolated and analyzed through Gas Chromatography-Mass Spectrometry technique. The results revealed the presence of two compounds (1, 3, 5, 7, 9, 11- Hexaethylcyclohexasiloxane and 2, 6 Lutidine 3, 5 dichloro-4- dodecylthio-). This study concludes that the isolate showed positive in vitro results and the metabolites do not confirm the pathogenicity of the strain. The findings suggest that further studies are required to evaluate the effect of Lactococcus garvieae PMS1 in fish.
肠道菌群的探索是研究微生物范围和作用的重要资源。探索在恶劣环境条件下生存的鱼类的肠道微生物群,发现新菌株的机会可能更多。本研究对在旁遮普省多阿巴地区采集的纹状棘虫成虫的胃肠道进行了研究。共分离得到34株菌株,并进行了对鱼类病原菌:嗜水气单胞菌和铜绿假单胞菌的抑菌活性筛选。其中4株为革兰氏阳性。在这4个分离株中,只有1株PMS1对嗜水气单胞菌表现出良好的抑菌活性。该分离物对低pH值具有较高的耐受性和较强的粘附能力。发现该分离物对所有测试的抗生素都敏感。经体外鉴定、生化及16srRNA分析,鉴定菌株为garvieae乳球菌。此外,通过气相色谱-质谱技术分离和分析细胞外代谢物。结果显示存在两个化合物(1,3,5,7,9,11 -六乙基环己硅氧烷和2,6 Lutidine 3,5二氯-4-十二烷基硫-)。本研究认为,分离物体外检测结果呈阳性,代谢产物不能证实菌株的致病性。研究结果表明,需要进一步的研究来评估garvieae乳球菌PMS1对鱼类的影响。
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引用次数: 0
Inhibition of quorum sensing by partially purified anti-quorum sensing compound from the marine epibiotic bacteria in Chromobacterium violaceum 紫色杆菌海洋表观细菌部分纯化的抗群体感应化合物对群体感应的抑制作用
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt011017
Siddhi Shah, Harsh Patel, Bhakti Bajpai
Quorum sensing system majorly contributes in the virulence of many microorganisms. Attenuation in the quorum sensing system by interaction with the signalling molecules can be an effective approach to reduce the use of anti-microbial agents. The aim of the study is to investigate quorum sensing inhibitory activity of microbes from the marine source. A total of 60 epibiotic bacteria were isolated: 4 isolates were anti-QS producer and one of them with potent anti-QS activity was identified as Pseudomonas stutzeri SJ4. The ethyl acetate extract of P. stutzeri SJ4 inhibited violacein pigment of Chromobacterium violaceum by 72.83%. To characterise the active compound, TLC and GC-MS were performed. GC-MS showed major 5 peaks whose compounds were docked with the Quorum sensing receptor CviR of C.violaceum. Molecular docking results indicated that 2,6,10,14- tetramethyl hexadecane showed highest binding energy -8.0 kcal/mol which is quite higher than control compound N-Decanoyl-DL-homoserine lactone, exhibiting -7.5 kcal/mol.
群体感应系统在许多微生物的毒力中起着重要作用。通过与信号分子的相互作用来衰减群体感应系统可能是减少抗菌剂使用的有效方法。本研究的目的是研究海洋源微生物的群体感应抑制活性。共分离到60株表生菌,其中4株为抗qs产生菌,其中1株为stutzeri假单胞菌SJ4。stutzeri SJ4乙酸乙酯提取物对紫色色杆菌的紫色素抑制率为72.83%。采用薄层色谱和气相色谱-质谱法对活性化合物进行表征。GC-MS显示了5个主要的峰,这些峰的化合物与堇菜的群体感应受体CviR对接。分子对接结果表明,2,6,10,14-四甲基十六烷的结合能最高,为-8.0 kcal/mol,远高于对照化合物n -癸醇- dl -高丝氨酸内酯的-7.5 kcal/mol。
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引用次数: 0
Scrutinizing Caesalpinia bonducella phytoactive compounds as potent regulators targeting proteins of drug instigated apoptotic and inflammatory pathways: An in-silico approach 细查有骨螯虾植物活性化合物作为药物诱导的细胞凋亡和炎症途径蛋白的有效调节剂:一种计算机方法
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt2310246
Nithiyanandam Sangeetha, Katturajan Ramkumar, Evan Prince Sabina
Drug-instigated toxicity is a leading source of organ injury due to apoptosis and inflammation. It is still a serious issue that demands the development of successful drugs to treat and prevent such organ damage. Herbal remedies are effective in the treatment of organ toxicity. Thus, the objective of this current study emphasizes scrutinizing interactions between phytoactive compounds of Caesalpinia bonducella seeds and targeted proteins of the apoptosis and inflammatory pathway. The SwitssADME online server was used to screen the pharmacokinetics and molecular properties of phytoactive compounds from Caesalpinia bonducella seeds. The PASS program was employed to assess phytoactive compounds' anti-apoptosis and anti-inflammatory activity. Using AutoDock Vina software, the ligands were docked onto targeted apoptotic and inflammatory proteins. The protein-ligand interaction was analyzed and visualized using Discovery studio software. The two most efficient regulators were glyceryl monostearate and 2-Palmitoylglycerol which interacted strongly with the binding sites of all the targeted proteins of apoptosis and inflammatory pathways. Glyceryl monostearate and 2-Palmitoylglycerol could be potential regulators for mitigating the inflammation and apoptosis instigated by therapeutical drug toxicity. They have the potency to be used as anti-apoptotic and anti-inflammatory agents and are intriguing research candidates for further research.
药物引起的毒性是由细胞凋亡和炎症引起的器官损伤的主要来源。这仍然是一个严重的问题,需要开发成功的药物来治疗和预防这种器官损伤。草药治疗器官毒性很有效。因此,本研究的目的是仔细研究红腹菜种子的植物活性化合物与细胞凋亡和炎症途径的靶向蛋白之间的相互作用。利用swiss - ssadme在线服务器对山葵种子中植物活性化合物的药动学和分子特性进行筛选。采用PASS程序评估植物活性化合物的抗凋亡和抗炎活性。使用AutoDock Vina软件,将配体连接到靶向凋亡和炎症蛋白上。使用Discovery studio软件分析和可视化蛋白质与配体的相互作用。两种最有效的调节剂是单硬脂酸甘油酯和2-棕榈酰甘油,它们与凋亡和炎症途径的所有靶蛋白的结合位点有很强的相互作用。单硬脂酸甘油和2-棕榈酰甘油可能是减轻治疗药物毒性引起的炎症和细胞凋亡的潜在调节剂。它们具有抗细胞凋亡和抗炎的功效,是进一步研究的有趣的研究候选者。
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引用次数: 0
Influence of Thidiazuron on in vitro regeneration potential of Kaempferia parviflora Wall. Ex Baker from Eastern India 噻脲对小山柰体外壁再生能力的影响。来自东印度的前贝克
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt018022
Rajashree Panigrahi, Reena Parida
An in vitro regeneration system was standarized on a traditional medicinal plant of Kaempferia parviflora. The rhizome sprouted buds upon transfer to MS basal medium with kinetin (3mg/l) and naphthalene acetic acid (0.5mg/l) were found optimum exhibiting maximum percent of shoot initiation as 90.6 ± 0.2. Maximum number of shoots as 8.1 ± 0.3 and maximum number of roots as 22.0 ± 0.3 were found in benzyladenine (3mg/l), naphthalene acetic acid (1mg/l) and thidiazuron (0.5mg/l) combination. Then the micropropagated plants were transferred to field for successful establishment as 90%. Furthermore, the morphological characteristic analysis was done between the conventional and micropropagated plants which showed very less significant variation. Thus the present protocol reports the propagation of K. parviflora plantlets which could be used for commercial exploitation in future.
建立了传统药用植物小山奈的离体再生体系。将根茎转移到含有动蛋白(3mg/l)和萘乙酸(0.5mg/l)的MS基础培养基上,芽发芽率最高,为90.6±0.2。在苄ladenine (3mg/l)、萘乙酸(1mg/l)和噻脲(0.5mg/l)组合下,植株的最大芽数为8.1±0.3,最大根数为22.0±0.3。然后将微繁殖植株移栽到田间,成株成功率为90%。此外,对常规植株和微繁植株的形态特征进行了分析,结果显示差异不显著。因此,本议定书报告了细小花蕾的繁殖情况,可用于未来的商业开发。
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引用次数: 0
Contributions of probiotic L. acidophilus 291 as biotechnological tool in therapeutic applications 益生菌嗜酸乳杆菌291作为生物技术工具在治疗中的应用
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-08-15 DOI: 10.25303/1809rjbt1470154
Mukesh Verma, Baljeet Singh Saharan, Anil Kumar
The present study was carried out to evaluate the hypoglycemic ability and antioxidant activities of lactic acid bacterial strain L. acidophilus NCDC 291 and to investigate the probiotic characteristics of the strain as well as its suitability as an alternative antimutagenic agent. The antidiabetic activity was examined by evaluating the α-glucosidase and α-amylase inhibitory activities. Strain L. acidophilus NCDC 291 exhibited hypoglycemic ability by α-glucosidase (41.67 %) and α-amylase (61.79 %). Strain L. acidophilus NCDC 291 showed antioxidant activities by DPPH (53.58 % and IC50 67.87 μL) and ABTS (50.61 % and IC50 45.17 μL). Further the bacterial strain was resistant to simulated gastrointestinal juice and showed potential for health promotion based on adhesion, antibiotic susceptibility and antimicrobial activities. L. acidophilus NCDC 291 appears as potential probiotic with beneficial health effects.
本研究对乳酸菌嗜酸乳杆菌NCDC 291的降糖能力和抗氧化活性进行了评价,探讨了该菌株的益生菌特性及其作为抗诱变剂的适用性。通过α-葡萄糖苷酶和α-淀粉酶抑制活性检测其抗糖尿病活性。菌株NCDC 291通过α-葡萄糖苷酶(41.67%)和α-淀粉酶(61.79%)表现出降糖能力。菌株NCDC 291对DPPH (53.58%, IC50 67.87 μL)和ABTS (50.61%, IC50 45.17 μL)具有较强的抗氧化活性。此外,该菌株对模拟胃肠道液具有抗性,并显示出基于黏附、抗生素敏感性和抗菌活性的健康促进潜力。嗜酸乳杆菌NCDC 291似乎是一种潜在的有益健康的益生菌。
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引用次数: 0
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Research Journal of Biotechnology
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