Project description:Many genes involve in pathogenicity and virulence are induced only in plant or in the presence of host components. Bean leaf extract was obtained from healthy bean leaves. In this work we investigated the effect of bean leaf extract on the transcriptomic profile of the bacterium, when grown at low temperature in minimal medium with or without extract from healthy bean leaves.
Project description:The water extract of the leaf of B. racemosa had been reported to posses high phenolic content and showed high antioxidant activities. However, scientific data on the molecular mechanisms underlying the beneficial properties of the leaf extract are still lacking. In this study, the effects of the leaf extract on the expression of genes in cultured HepG2 cells were investigated using microarray technology. The leaf extract significantly regulated the expression of genes involved with consequential impact on the glycolysis, gluconeogenesis and metabolism of xenobiotics.
Project description:The leaf extract of T. indica had been reported to posses high phenolic content and showed high antioxidant activities. However, scientific data on the molecular mechanisms underlying the beneficial properties of the leaf extract are still lacking. In this study, the effects of the leaf extract on the expression of genes in cultured HepG2 cells were investigated using microarray technology. The leaf extract significantly regulated the expression of genes involved with consequential impact on the coagulation system, cholesterol biosynthesis, xenobiotic metabolism signaling and antimicrobial response.
Project description:The water extract of the leaf of B. racemosa had been reported to posses high phenolic content and showed high antioxidant activities. However, scientific data on the molecular mechanisms underlying the beneficial properties of the leaf extract are still lacking. In this study, the effects of the leaf extract on the expression of genes in cultured HepG2 cells were investigated using microarray technology. The leaf extract significantly regulated the expression of genes involved with consequential impact on the glycolysis, gluconeogenesis and metabolism of xenobiotics. HepG2 cells were seeded and treated with an 50 µg/ml of the water leaf extract of B. racemosa for 24 h. Following this, cells were trypsinized and then preciptated by centrifugation. Cells were washed with phosphate buffer saline (PBS) before total cellular RNA (tcRNA) were extracted from the cells. tcRNA from both untreated and B. racemosa leaf-treated HepG2 cells were selected for RNA extraction and hybridization on Affymetrix microarrays. All experiments were done in triplicate. The microarray analysis was performed on Affymetrix Human Gene 1.0 S.T Array according to the manufacturer's protocol. The gene sets were then subjected to analysis of variance (ANOVA) in the Partek Genomics Suite software to determine significantly expressed genes which was set according to P value less than 0.05 and fold change difference of equal to or greater than 1.5.
Project description:We investigated the effect of pterocarpan-rich extract from soybean leaf on metabolic syndrome and elucidated anti-inflammation mechanism based on RNA-seq transcriptomic profiles in overweight and obese subjects
Project description:The leaf extract of T. indica had been reported to posses high phenolic content and showed high antioxidant activities. However, scientific data on the molecular mechanisms underlying the beneficial properties of the leaf extract are still lacking. In this study, the effects of the leaf extract on the expression of genes in cultured HepG2 cells were investigated using microarray technology. The leaf extract significantly regulated the expression of genes involved with consequential impact on the coagulation system, cholesterol biosynthesis, xenobiotic metabolism signaling and antimicrobial response. HepG2 cells were seeded and treated with an IC20 concentration of the methanol leaf extract of T. indica for 24 h. Following this, cells were trypsinized and then preciptated by centrifugation. Cells were washed with phosphate buffer saline (PBS) before total cellular RNA (tcRNA) were extracted from the cells. tcRNA from both untreated and T. indica leaf-treated HepG2 cells were selected for RNA extraction and hybridization on Affymetrix microarrays. All experiments were done in triplicate. The microarray analysis was performed on Affymetrix Human Gene 1.0 S.T Array according to the manufacturer's protocol. The gene sets were then subjected to analysis of variance (ANOVA) in the Partek Genomics Suite software to determine significantly expressed genes which was set according to P value less than 0.05 and fold change difference of equal to or greater than 1.5.
Project description:Olive oil is correlated to long life and low rates of cancers and cardiovascular disease. The health benefits of the oil is contributed to the polyphenols. The polyphenols in olive leaf are simialr bit in high concentrations. We wanted to uncover whether measurable changes would occur with supplementation in human participants. we used affymetrix arrays to measure the gene expression changes with olive leaf extract compared to placebo control.
Project description:Kappaphycus alvarezii seaweed extract (KSWE) has been known for its plant biostimulant and stress alleviation activities on various crops. However, very few reports are available depicting its impact at the molecular level, which is crucial in identifying the mechanism of action of KSWE on plants. Here, maize leaf tissue of control and KSWE treated plants were analyzed for their transcriptional changes under drought stress. KSWE was applied foliarly at the V5 stage of maize crop under drought and leaf transcriptome analysis was performed. It was found that total of 380 and 631 genes were up- and down- regulated, respectively due to the application of KSWE. Genes involved in nitrate transportation, signal transmission, photosynthesis, transmembrane transport of various ions, glycogen and starch biosynthetic processes were found up-regulated in KSWE treated plants. While genes involved in the catabolism of polysaccharide molecules such as starch as well as cell wall macromolecules like chitin and protein degradation were found down-regulated. An overview of differentially expressed genes involved in metabolic as well as regulatory processes in KSWE treated plant was also analyzed via Mapman tool. Phytohormone signaling genes such as cytokinin-independent 1 (involved in cytokine signal transduction), Ent-kaurene synthase and GA20 oxidase (involved in gibberellin synthesis) and gene of 2-oxoglutarate-dependent dioxygenase enzyme activity (involved in ethylene synthesis) were found up-regulated while 9-cis-epoxycarotenoid dioxygenase (a gene involved in abscisic acid synthesis) was found down regulated due to the application of KSWE. Modulation of gene expression in maize leaf tissue in response to KSWE treatment elucidate mechanisms to ward off drought stress which can be extended to understand similar phenomenon in other crops as well. . This molecular knowledge can be utilized to make the use of KSWE more efficient and sustainable.