1.Synthesis and Antithrombotic Effect of CI-930
Academic Journal of Second Military Medical University 1982;0(02):-
A novel cardiotonic CJ-930 was successfully designed and synthesized with a new synthetic route. The method and reactive condition on acylating, hydrolytic and condensating reaction were also improved.In addition to convenience of operation, a new synthetic route showed also the advantage over Sircar's method on the raising of total yield 26% to 36%.This compound significantly inhibited the in vitro aggregation of rabbit platelet induced by arachidonic acid, U46619, collagen, ADP and platelet activating factor(PAF). In rabbit or rat platelet, CI-930 depressed the synthesis of thromboxane A.
2.Reaction between antineoplastic nitidine chloride and sodium hydroxide solution
Hongqin YANG ; Weiqin WAN ; Yun ZHOU ;
Academic Journal of Second Military Medical University 2000;0(08):-
Objective: To challenge the previously proposed anticancer mechanism of nitidine chloride, which suggest there exist anti tumor C(6)=N(5) double bond structure. Methods: An antitumor alkaloid, nitidine chloride, was treated in aqueous sodium hydroxide solution without the presence of certain kinds of amino acids and oxygen. Results and Conclusion: It had been revealed that virtually equal amount of 5, 6 dihydronitidine and oxynitidine was produced under such circumstances. The results suggest the anticancer mechanism of nitidine chloride need further investigation. [
3.Research progress on the neurocognitive development of small for gestational age
Weiqin WANG ; Zhongling LIU ; Yanyan HUO ; Qin WAN ; Qiaoyun LIU ; Dan WU ; Lingyan CHEN ; Jinjin CHEN
Chinese Journal of Child Health Care 2024;32(5):527-533
Small for gestational age (SGA) infants are more likely to experience neurocognitive impairments compared to appropriate for gestational age (AGA) infants. This paper reviews recent research on the neurocognitive development of SGA children. SGA can lead to a "brain-sparing effect" due to growth restriction, which may affect cerebral blood flow and brain structure. However, this does not guarantee normal brain development. Restrictive blood flow can result in changes in brain structure, such as reduced total white matter and gray matter volume in various brain regions, including the cerebral cortex, hippocampus and cerebellum, ultimately leading to decreased head circumference. SGA children also exhibit lower scores in all neurocognitive domains, including intelligence, attention, memory, and executive function. This may result in poor academic performance and an increased risk of social, behavioral, and neurological problems, such as cerebral palsy, epilepsy, visual and hearing impairments, as well as comorbidities like attention deficit hyperactivity disorder(ADHD), autism spectrum disorder(ASD), anxiety, depression, and schizophrenia. Several risk factors for SGA-related neurocognitive impairments have been identified, including gestational hypertension, abnormal gestational weight, smoking, and catch-up growth. Studies have shown that the best interventions to improve cognitive dysplasia include nutrient supplementation, continued breastfeeding, high-quality education, and appropriate early intervention (responsive parenting) are effective in improving cognitive outcomes for SGA children.