Gene characteristics and changing trend of neonatal thalassemia in Dongguan, China / 中国当代儿科杂志

OBJECTIVE@#To study the gene distribution characteristics of neonatal thalassemia in Dongguan, China and the changing trend of the gene distribution characteristics of neonates with thalassemia in Dongguan in 2014-2018.@*METHODS@#A retrospective analysis was performed for the data on neonatal thalassemia screening from the Dongguan Neonatal Disease Screening System between January 2014 and December 2018. A total of 616 718 neonates were enrolled who were born in Dongguan.@*RESULTS@#Among the 616 718 neonates, 52 308 were positive for primary screening, 10 366 were recalled, 8 576 underwent genetic diagnosis, and 6 432 were confirmed with thalassemia by genetic diagnosis. The carrying rates of thalassemia genes in 2014-2018 were 5.81%, 5.47%, 5.96%, 6.91%, and 7.90% respectively, and showed an upward trend (P<0.001). The positive rates of neonatal thalassemia screening in 2014-2018 were 9.12%, 8.34%, 7.54%, 8.13%, and 9.32% respectively (P<0.001). The positive rates of genetic diagnosis of neonatal thalassemia in 2014-2018 were 0.89%, 1.11%, 1.24%, 0.90%, and 1.09% respectively (P<0.001). In 2014-2018, 5 098 cases of α-thalassemia were detected, accounting for 79.26% of all cases, and 1 230 cases of β-thalassemia were detected, accounting for 19.12% of all cases. The detection rate of α-thalassemia was significantly higher than that of β-thalassemia in each year (P<0.001). In 2014-2018, static α-thalassemia, mild α-thalassemia, and mild β-thalassemia were the main types observed in neonates.@*CONCLUSIONS@#Most of the neonates with thalassemia have α-thalassemia in Dongguan, with static α-thalassemia and mild α-thalassemia as the main types. The carrying rate of thalassemia genes keeps increasing in neonates in Dongguan, and the prevention and treatment of thalassemia is still challenging.

Protective Effect of Huoxue Dingtong Prescription on Myocardial Ischemia Reperfusion Injury in Animal Model Based on NF-κB Signal Pathway / 中国实验方剂学杂志

Objective::To explore the protective effect of Huoxue Dingtong prescription on myocardial ischemia reperfusion injury in animal model based on nuclear transcription factor-κB(NF-κB) signal pathway. Method::In compound Danshen dropping pill group, SD rats were randomly divided into sham group, model group, compound salvia miltiorrhiza dropping pill group, high-dose Huoxue Dingtong group low-dose Huoxue Dingtong group, high-dose Huoxue Dingtong+ NF-κB inhibitor group. The rats in each group were administered continuously for 2 weeks. The rats in high-dose Huoxue Dingtong group+ pyrrolidine dithiocarbamate(PDTC) group were intraperitoneally administered the next day after modeling. Injection with PDTC and ligation of anterior descending branch of left coronary artery were performed to detect left ventricular function and Na+ -K+ -ATPase activity. Blood was collected from each animal abdominal aorta, and enzyme-linked immunosorbent assay (ELISA) was used to detect serum creatine kinase isoenzyme (CK-MB), troponin T (cTnT), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β), superoxide gasification enzyme (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-Px). Western blot was used to detect the expressions of NF-κB, NF-κB inhibitor α (IκBα) and IκB kinase(IκκB) in myocardium. Result::Compared with model group, compound Danshen dropping pill group, high-dose Huoxue Dingtong group and low-dose Huoxue Dingtong group could reduce serum CK-MB, cTnT, TNF-α, IL-6, IL-1β, MDA, increase SOD and GSH-Px contents, increase the protein expressions of IκBα and IκB in myocardial tissue, and increase the activity of Na+ -K+ -ATPase in myocardial energy metabolism in myocardial ischemia-reperfusion model rats (P<0.05). However, high-dose Huoxue Dingtong group+ PDTC did not decrease serum CK-MB, cTnT, TNF-α, IL-6, IL-1β and MDA, increase SOD, GSH-Px, and increase the protein expression levels of IκBα and IκκB in myocardial tissue. There was no significant difference between high-dose Huoxue Dingtong group+ PDTC and model group. Conclusion::Huoxue Dingtang prescription can inhibit the activation of NF-κB signaling pathway, reduce the expression of inflammatory mediators and the production of free radicals, and increase the activity of Na+ -K+ -ATPase in the process of myocardial energy metabolism by up-regulating the expressions of IκBα and IκκB proteins in myocardial tissue of myocardial ischemia-reperfusion model.

Design, synthesis and antiproliferative activity in cancer cells of novel dihydropyrazolyl and pyrazolyl artemisinin-phenyl ethers / 中国中药杂志

To explore potent anticancer agent based on artemisinin scaffold, a series of 10--phenyl ethers derivatives containing dihydropyrazolyl or pyrazolyl moiety have been designed and synthesized. Their structures were determined by LC-MS and ¹H-NMR date. Inhibitory effects of the target compounds in human breast cancer MCF-7, MCF/Adr, MDA-MB-231 cells and prostate cell line PC-3 were determined by MTT assay. Those derivatives displayed good antiproliferative activity against the tested cancer cells. Particularly, target compounds exhibited significant cytotoxicity against drug-resistance cells MCF/Adr, which was worthy for further investigation.

Professor HE Yingchun's Experience in treating Tinnitus / 浙江中医药大学学报

[Objective]To conclude and inherit Professor HE Yingchun's clincal academic experience and academic ideas. [Methods]By learing from professor HE Yingchun,recording the relevant cases and and analyzing cases,from the etiology and pathogenesis, therapeutic principle and therapy to generalize the treament of tinnitus. [Results]Professor HE Yingchun believes that the pathogenesis of tinnitus is " Turbid obstructs Qingqi"," Qingqi obstruction" and "Inner depression of Yangqi " ,she grabs the "Resolve cloudy, lift Qingyang and scattered fire evil" theory to treat tinnitus,regulating qi activity,clearing heat and promoting diuresis,invigorating qi and strengthening the spleen,replenishing qi, scattering fire evil,clearing biood stasis is the clinical common therapy, and she always obtains good effects in the treatment by using San Ren Decoction,Yi Qi Cong Ming Decoction and Sheng Yang San Huo Decoction. [Conclusion]Professor HE Yingchun always grabs the pathogenesis of tinnitus and adds other methods to treat the disase,and the curative effect is distinct ,her experience is effective and worthy of inheritance and promotion.

Professor HE Yingchun's Experience in treating Tinnitus / 浙江中医药大学学报

[Objective]To conclude and inherit Professor HE Yingchun's clincal academic experience and academic ideas. [Methods]By learing from professor HE Yingchun,recording the relevant cases and and analyzing cases,from the etiology and pathogenesis, therapeutic principle and therapy to generalize the treament of tinnitus. [Results]Professor HE Yingchun believes that the pathogenesis of tinnitus is " Turbid obstructs Qingqi"," Qingqi obstruction" and "Inner depression of Yangqi " ,she grabs the "Resolve cloudy, lift Qingyang and scattered fire evil" theory to treat tinnitus,regulating qi activity,clearing heat and promoting diuresis,invigorating qi and strengthening the spleen,replenishing qi, scattering fire evil,clearing biood stasis is the clinical common therapy, and she always obtains good effects in the treatment by using San Ren Decoction,Yi Qi Cong Ming Decoction and Sheng Yang San Huo Decoction. [Conclusion]Professor HE Yingchun always grabs the pathogenesis of tinnitus and adds other methods to treat the disase,and the curative effect is distinct ,her experience is effective and worthy of inheritance and promotion.

Design, synthesis and antiproliferative activities of artemisinin derivatives substituted by N-heterocycles / 药学学报

Increasing attention has been focused on the antitumor activity of artemisinin derivatives in recent years, for artemisinin had been reported to have cytotoxic effects against HL-60, P388 and MCF-7 tumor cells. We report here the synthesis and evaluation for antitumor activity of a series of artemisinin-ether derivatives bearing tetrahydropyrrole, morpholine, piperidine, substituted piperidines and azoles with various linkers. Sixteen 10-O-substituted dihydroartemisinin derivatives were designed and synthesized, all of which have never been reported in literatures and whose antiproliferative effects on human breast cancer MCF-7, MCF-7/Adr and HL-60 cells were determined by MTT assay or direct cell counting. Each of these artemisinin derivatives possessed better effects than dihydroartemisinin evidently against HL-60 and MCF-7 cells growth, while less potent than doxorubicin. All target compounds exhibited significantly improved potency compared to DHA and doxorubicin on the doxorubicin-resistant MCF-7/Adr cells, so did they in their sensitive counterparts MCF-7 cells. Among them, compounds GF02, GH04 and ZH04 showed strong activity against these three cell lines growth. Further research is undergoing.

Design, synthesis and antiproliferative activities of artemisinin derivatives substituted by N-heterocycles / 药学学报

Increasing attention has been focused on the antitumor activity of artemisinin derivatives in recent years, for artemisinin had been reported to have cytotoxic effects against HL-60, P388 and MCF-7 tumor cells. We report here the synthesis and evaluation for antitumor activity of a series of artemisinin-ether derivatives bearing tetrahydropyrrole, morpholine, piperidine, substituted piperidines and azoles with various linkers. Sixteen 10-O-substituted dihydroartemisinin derivatives were designed and synthesized, all of which have never been reported in literatures and whose antiproliferative effects on human breast cancer MCF-7, MCF-7/Adr and HL-60 cells were determined by MTT assay or direct cell counting. Each of these artemisinin derivatives possessed better effects than dihydroartemisinin evidently against HL-60 and MCF-7 cells growth, while less potent than doxorubicin. All target compounds exhibited significantly improved potency compared to DHA and doxorubicin on the doxorubicin-resistant MCF-7/Adr cells, so did they in their sensitive counterparts MCF-7 cells. Among them, compounds GF02, GH04 and ZH04 showed strong activity against these three cell lines growth. Further research is undergoing.