Apocynum hendersonii
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA751412 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15351402_1.fastq.gz | Fastqsanger.gz | |||
| SRR15351402_2.fastq.gz | Fastqsanger.gz |
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Project description:Introduction: Emerging proof suggests that Apocynum venetum flowers polysaccharides (AVFP) has immunomodulatory effects in vitro. However, the action mechanism of AVFP is still unclear in vivo. The purpose of this study is to probe into the potential mechanism of AVFP on immunosuppressed mice through investigating organ index, cytokine levels, anti-oxidative stress capacity, transcriptomics and gut microbiota. Methods: Immunocompromised mouse model induced by cyclophosphamide (CXT) was divided into 6 groups. Enzyme-labeled method, HE, transcriptomics and high-throughput sequencing were used to detect the regulatory effects of AVFP on immunocompromised mice, as well as the function of AVFP on the concentration of short-chain fatty acids (SCFAs) by high-performance liquid chromatographic analysis (HPLC). Pearson was used to analyze the correlation between intestinal microbiota and biochemical indexes. Results: The experimental results illustrated that AVFP has protective effects against CXT-induced immunosuppression in mice via prominently increasing organ index, levels of anti-inflammatory factors in serum as well as enhancing antioxidant capacity of the liver. Meanwhile, it could also signally decrease the level of pro-inflammatory cytokines in serum, the activity of transaminase in serum and the content of free radicals in liver. Transcriptomics results discovered that AVFP could play a role in immune regulation via participating in NF-κB signaling pathway, regulating the immune-related genes Bcl3, Hp, Lbp, Cebpd, Gstp2 and Lcn2. Intestinal microbiota results illustrated that AVFP could increase abundance of beneficial bacteria, reduce abundance of harmful bacteria, while dramatically improved the content of SCFAs, modulated immune responses and improved host metabolism. Spearman analysis further assessed the correlation between gut microbiota and biochemical indicators. Conclusion: These findings demonstrated that AVFP could enhance the immune effects of the immunosuppressed mice and improve the body's ability to resist oxidative stress.
2024-05-31 | GSE267244 | GEO
Project description:Apocynum plants, especially A. venetum and A. hendersonii, are rich in flavonoids. In the present study, a whole genome survey of the two species was initially carried out to optimize the flavonoid biosynthesis-correlated gene mining. Then, the metabolome and transcriptome analyses were combined to elucidate the flavonoid biosynthesis pathways. Both species have small genome sizes of 232.80 Mb (A. venetum) and 233.74 Mb (A. hendersonii) and showed similar metabolite profiles with flavonols being the main differentiated flavonoids between the two specie. Positive correlation of gene expression levels (flavonone-3 hydroxylase, anthocyanidin reductase, and flavonoid 3-O-glucosyltransferase) and total flavonoid content were observed. The contents of quercitrin, hyperoside, and total anthocyanin in A. venetum were found to be much higher than in A. hendersonii, and such was thought to be the reason for the morphological difference in color of A. venetum and A. hendersonii. This study provides valuable genomic and metabolome information for understanding of A. venetum and A. hendersonii, and lays a foundation for elucidating Apocynum genus plant flavonoid biosynthesis.
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Project description:Lithium (Li) could be much safer and successful approach to supply Li via Li-fortified food products. This study is highlighting the potential scope of Li supply via Li-biofortification of Luobuma tea (made from Apocynum venetum leaves), which is a very popular beverage in Asia with several medical properties. We explored the possibility of A. venetum as Li-enriched tea and investigated plant growth, Li accumulation, total flavonoids (TFs), rutin and hyperoside concentrations, and the antioxidant capacity of A. venetum. With the increase of additional Li, Li concentration in roots, stems and leaves increased gradually. Compared with the control treatment, 10-15 mg kg-1 Li addition stimulated the growth of A. venetum and 25 mg kg-1 Li addition significantly increased the Li concentration in leaves by 80 mg kg-1. Li application did not decrease TFs, rutin, hyperoside and antioxidant capacity of this medicinal herb. A daily consumption of 10 g Li-biofortified A. venetum leaves (cultivated with 25 mg kg-1 LiCl) can give 592 μg Li intake and would constitute 59% of the provisional recommended dietary daily intake of Li. Our results showed that Li-biofortified A. venetum leaves can be used as Li-fortified tea to enhance Li supply and to improve human health when it was used as daily drink.
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