Search results for "RNA-SEQ"
showing 6 items of 86 documents
De novo Transcriptome Assembly and Comparison of C3, C3-C4, and C4 Species of Tribe Salsoleae (Chenopodiaceae)
2017
C4 photosynthesis is a carbon-concentrating mechanism that evolved independently more than 60 times in a wide range of angiosperm lineages. Among other alterations, the evolution of C4 from ancestral C3 photosynthesis requires changes in the expression of a vast number of genes. Differential gene expression analyses between closely related C3 and C4 species have significantly increased our understanding of C4 functioning and evolution. In Chenopodiaceae, a family that is rich in C4 origins and photosynthetic types, the anatomy, physiology and phylogeny of C4, C2, and C3 species of Salsoleae has been studied in great detail, which facilitated the choice of six samples of five representative …
miRNome Profiling Detects miR-101-3p and miR-142-5p as Putative Blood Biomarkers of Frailty Syndrome
2022
Frailty is an aging-related pathology, defined as a state of increased vulnerability to stressors, leading to a limited capacity to meet homeostatic demands. Extracellular microRNAs (miRNAs) were proposed as potential biomarkers of various disease conditions, including age-related pathologies. The primary objective of this study was to identify blood miRNAs that could serve as potential biomarkers and candidate mechanisms of frailty. Using the Fried index, we enrolled 22 robust and 19 frail subjects. Blood and urine samples were analysed for several biochemical parameters. We observed that sTNF-R was robustly upregulated in the frail group, indicating the presence of an inflammatory state. …
The LuxR Regulators PcoR and RfiA Co-regulate Antimicrobial Peptide and Alginate Production in
2017
Cyclic lipopeptides (CLPs) are considered as some of the most important secondary metabolites in different plant-associated bacteria, thanks to their antimicrobial, cytotoxic, and surfactant properties. In this study, our aim was to investigate the role of the Quorum Sensing (QS) system, PcoI/PcoR, and the LuxR-type transcriptional regulator RfiA in CLP production in the phytopatogenic bacterium, Pseudomonas corrugata based on our previous work where we reported that the pcoR and rfiA mutants were devoid of the CLPs cormycin and corpeptin production. Due to the close genetic link between the QS system and the RfiA (rfiA is co-transcribed with pcoI), it was difficult to ascertain the specifi…
Prostatas vēža pacientu audzēju un bioloģiskos šķidrumos atrodamo ārpusšūnas vezikulu transkriptomu salīdzinājums
2019
Visdažādāko veidu šūnas izdala ārpusšūnas vezikulas (EVs) un ir pierādīts, ka tām ir nozīmīga loma prostatas vēža (PCa) attīstībā, jo tās spēj pārnest dažādas bioloģiskās molekulas, tostarp RNS, no vienas šūnas uz otru. Šis darbs ir vērsts uz plazmas un urīna EV, kā arī PCa audzēja un normālu prostatas audu transkriptoma izpēti, izmantojot RNS sekvencēšanas (RNA-seq) tehnoloģiju. Rezultāti uzrādīja, ka 1868 proteīnus kodējošie gēni un 1108 garās nekodējošās RNS (lncRNS) bija paaugstināti ekspresētas audzēja audos salīdzinājumā ar normāliem prostatas audiem, taču tikai 6% līdz 31% proteīnus kodējošie gēni un 1% līdz 5% lncRNS bija atrodamas EVs, kas liecina, ka EV ietvertā RNS saturs tikai d…
The Developmental Transcriptome for Lytechinus variegatus Exhibits Temporally Punctuated Gene Expression Changes
2019
AbstractEmbryonic development is arguably the most complex process an organism undergoes during its lifetime, and understanding this complexity is best approached with a systems-level perspective. The sea urchin has become a highly valuable model organism for understanding developmental specification, morphogenesis, and evolution. As a non-chordate deuterostome, the sea urchin occupies an important evolutionary niche between protostomes and vertebrates.Lytechinus variegatus(Lv) is an Atlantic species that has been well studied, and which has provided important insights into signal transduction, patterning, and morphogenetic changes during embryonic and larval development. The Pacific specie…
Hormonus nesekretējošo hipofīzes neiroendokrīno audzēju klasifikācijas izstrāde, izmantojot transkriptomu de novo pielīdzināšanu un datu dimensiju re…
2021
Īso nolasījumu RNS sekvencēšana ir metode, kuru bieži pielieto diferenciāli ekspresēto gēnu noteikšanai. Hipofīzes neiroendokrīnie audzēji jeb PitNET ir galvenokārt labdabīgi audzēji ar dažādu molekulāro izcelsmi un klīniskajā izpausmēm. Līdz šim noteiktas vairākas somatiskās mutācijas (GNAS, USP48, BRAF, USP8) un dažas pārmantojamās (AIP, MEN1, PRKAR1A, GPR101), kas asociētas PitNET veidošanos dažādos klīniskajos kontekstus, taču rezultātus bieži neizdodas replicēt dažādās it kā fenotipiski līdzīgās paraugkopās, kas varētu būt saistīts ar sarežģīto PitNET klasifikāciju. Darbā izmantoti 58 hormonus nesekretējošu PitNET paraugi, kuru RNS sekvencēšanas nolasījumi iegūti no Valsts Iedzīvotāju …