Project description:The geographical authentication of green specialty coffee is an intriguing phenomenon that is not yet fully resolved. As one of few, this study is focused on the authentication of the geographical origin of green specialty coffee beans from well-known harvesting regions in Central America, South America, Africa, and Asia using proteomic profiling coupled with Linear Discriminant Analysis. Out of 1596 proteins, we identified 30 of the most significant target markers for the authentication of the geographical origin of specialty green coffee beans. The prediction performance of the model using leave-one-out cross-validation reached 85.3%, with the lowest accuracy in the prediction rate for Asian samples. Model performance and prediction sensitivity to random states were tested using 5-fold cross-validation. After 20 iterations, the model performance decreased to 84.0%.
Project description:The purpose is to obtain samples for mRNA, miRNA, proteomics, lipidomics, metabolomics, and histopathology analysis in mouse lung infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203'). Groups of 22-week-old C57BL/6 mice were infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203').Infections were done at 10^4 PFU/mouse in 50 μl PBS. Time points were 1, 2, 4, and 7 d.p.i. There were 5 mice for all infection groups and 3 mice for all mock groups. Lung samples were collected for virus load, transcriptional and proteomics analysis. Weight loss and animal survival were also monitored.
Project description:The purpose is to obtain samples for mRNA, miRNA, proteomics, lipidomics, metabolomics, and histopathology analysis in mouse lung infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203'). Groups of 22-week-old C57BL/6 mice were infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203'). Infections were done at 10^4 PFU/mouse in 50 μl PBS. Time points were 1, 2, 4, and 7 d.p.i. There were 5 mice for all infection groups and 3 mice for all mock groups. Lung samples were collected for virus load, transcriptional and proteomics analysis. Weight loss and animal survival were also monitored.
Project description:The purpose is to obtain samples for mRNA, miRNA, proteomics, lipidomics, metabolomics, and histopathology analysis in mouse lung infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203') and VN1203-NS1trunc124. Groups of 22-week-old C57BL/6 mice were infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203') and VN1203-NS1trunc124 (an NS1 protein with a 90 amino acid truncation at the C-terminus). Infections were done at 10^4 PFU/mouse in 50 μl PBS. Time points were 1, 2, 4, and 7 d.p.i. There were 5 mice for all infection groups and 3 mice for all mock groups. Lung samples were collected for virus load, transcriptional and proteomics analysis. Weight loss and animal survival were also monitored.
Project description:The purpose is to obtain samples for mRNA, miRNA, proteomics, lipidomics, metabolomics, and histopathology analysis in mouse lung infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203') and VN1203-NS1trunc124. Groups of 22-week-old C57BL/6 mice were infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203') and VN1203-NS1trunc124 (an NS1 protein with a 90 amino acid truncation at the C-terminus). Infections were done at 10^4 PFU/mouse in 50 μl PBS. Time points were 1, 2, 4, and 7 d.p.i. There were 5 mice for all infection groups and 3 mice for all mock groups. Lung samples were collected for virus load, transcriptional and proteomics analysis. Weight loss and animal survival were also monitored.
Project description:The purpose is to obtain samples for mRNA, miRNA, proteomics, lipidomics, metabolomics, and histopathology analysis in mouse lung infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203'), VN1203-NS1trunc124, and WT A/California/04/2009 (H1N1; 'CA04'). Groups of 22-week-old C57BL/6 mice were infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203'), VN12013-PB2-627E, VN1203-NS1trunc124, and WT A/California/04/2009 (H1N1; 'CA04').Infections were done at 176 PFU/mouse for VN1203, 1100 PFU/mouse for VN1203-NS1trunc124, and 10^4 PFU/mouse for CA04. Time points were 1, 2, 4, and 7 d.p.i. There were 5 mice for all infection groups and 3 mice for all mock groups. Lung samples were collected for virus load, transcriptional and proteomics analysis. Weight loss and animal survival were also monitored.
Project description:Background: Understanding the genetic elements that contribute to key aspects of coffee biology will impact future agronomical improvements for this economically important tree. The past years, EST collections were generated in Coffee, opening the possibility to create new tools for functional genomics. Results: The project PUCE CAFE, set up by the scientific consortium NESTLE/IRD/CIRAD has developed of long oligonucleotide coffee array using public coffee EST sequences mainly obtained from different stages during fruit development and leaves in Coffea canephora (Robusta). We have performed a validation experiment in order to check the array usability and the reproducibility of hybridizations. Conclusion: We have generated the first 15K Coffee array during this three years project PUCE CAFE, granted by The French National Research Agency (ANR, Programme Génoplante) . This new tool was dedicated to large scale transcriptomic analysis during grain development of Coffea canephora grown in different countries . Furthermore, other analysis have been also initiated by the different partners like analysis of polyploidy or drought resistance. In any case, at the end of the project, the generated arrays will be available to the international scientific community. three biological replicates were made for each tissue analyzed (i.e. leaves, flowers and mature beans). The following comparisons were made: Bean-Flower, Leaf-Flower and Leaf-Bean. In all, we performed microarray analyses on 18 slides [3 (replicates) x 2 (dyes) x 3 (organs)]
Project description:The purpose is to obtain samples for mRNA, miRNA, proteomics, lipidomics, metabolomics, and histopathology analysis in mouse lung infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203'), VN12013-PB2-627E, VN1203-NS1trunc124, and WT A/California/04/2009 (H1N1; 'CA04'). Groups of 22-week-old C57BL/6 mice were infected with WT A/Vietnam/1203/2004 (H5N1; 'VN1203'), VN12013-PB2-627E, VN1203-NS1trunc124, and WT A/California/04/2009 (H1N1; 'CA04').Infections were done at 176 PFU/mouse for VN1203, 70 PFU/mouse for VN1203-PB2-627E, 1100 PFU/mouse for VN1203-NS1trunc124, and 10^4 PFU/mouse for CA04. Time points were 1, 2, 4, and 7 d.p.i. There were 8 mice for all infection groups and 5 mice for all mock groups. Lung samples were collected for virus load, transcriptional and proteomics analysis. Weight loss and animal survival were also monitored.