Cerebral hemodynamic changes assessment by transcranial doppler ultrasound in patients with acute cerebral infarction before and after treatment with butylphthalide.

To assess cerebral hemodynamic changes by transcranial doppler ultrasound in patients with acute cerebral infarction before and after treatment with butylphthalide, A total of 90 patients with acute cerebral infarction admitted to our hospital from January 2019 to January 2020 were selected and equally divided into the control group and the experimental group according to the order of admission. The control group was treated with conventional treatment, while the experimental group was additionally given butylphthalide drug treatment. The experimental group obtained better hemodynamic indexes as compared with the control group (P<0.

Genetic mapping with testcrossing associations and F populations reveals the importance of heterosis in chilling tolerance at maize seedling stage.

Maize seedlings are sensitive to low temperatures, and genetic mapping for chilling tolerance at the seedling stage with genetically diverse populations would facilitate the genetic improvement of this important trait. In this study, quantitative trait loci (QTL) mapping for four chilling tolerance-related traits at the seedling stage was conducted via a genome-wide association study (GWAS) with 338 testcrosses. A total of 32 significant loci and 36 stress tolerance-related candidate genes were identified, though none of them have been revealed by QTL mapping using maize inbred lines in previous reports.