1.Effects of Culture Mechanism of Cinnamomum kanehirae and C. camphora on the Expression of Genes Related to Terpene Biosynthesis in Antrodia cinnamomea
Zhang ZHANG ; Yi WANG ; Xiao-Long YUAN ; Ya-Na LUO ; Ma-Niya LUO ; Yuan ZHENG
Mycobiology 2022;50(2):121-131
The rare edible and medicinal fungus Antrodia cinnamomea has a substantial potential for development. In this study, Illumina HiSeq 2000 was used to sequence its transcriptome.The results were assembled de novo, and 66,589 unigenes with an N50 of 4413 bp were obtained. Compared with public databases, 6,061, 3,257, and 2,807 unigenes were annotated to the Non-Redundant, Gene Ontology, and Kyoto Encyclopedia of Genes and Genomes databases, respectively. The genes related to terpene biosynthesis in the mycelia of A. cinnamomea were analyzed, and acetyl CoA synthase (ACS2 and ACS4), hydroxymethylglutaryl CoA reductase (HMGR), farnesyl transferase (FTase), and squalene synthase (SQS) were found to be upregulated in XZJ (twig of C. camphora) and NZJ (twig of C. kanehirae). Moreover, ACS5 and 2,3-oxidized squalene cyclase ( OCS) were highly expressed in NZJ, while heme IX farnesyl transferase (IX-FIT) and ACS3 were significantly expressed in XZJ. The differential expression of ACS1, ACS2, HMGR, IX-FIT, SQS, and OCS was confirmed by real-time quantitative reverse transcription PCR. This study provides a new concept for the additional exploration of the molecular regulatory mechanism of terpenoid biosynthesis and data for the biotechnology of terpenoid production.
2. Effect of sympathetic overactivity on stroke-associated pneumonia
Yang LI ; Baojun WANG ; Niya MA
International Journal of Cerebrovascular Diseases 2019;27(9):696-699
Stroke-associated pneumonia (SAP), the most common infection complication after stroke, may be associated with immunosuppression caused by post-stroke sympathetic system overactivity. This review discusses the relationship between sympathetic overactivity and SAP. In addition, the evaluation method of sympathetic nervous system activity and the application value of adrenergic receptor blockers are also described.