1.Non-traditional anti-epilepsy medicine in treatment of epilepsy in children
International Journal of Pediatrics 2010;37(6):616-619
Epilepsy,a common neurological disorder which is more likely to occur in children, does great harm to the physical and mental health of children. At present, use of anti-epilepsy medicine is still the main method of treating the disease. The effects of traditional anti-epilepsy medicine are obvious but many patients can not tolerate the severe side-effects. Moreover, the rate of drug resistance is high. For those children with such a disease who can not be treated by traditional medicine and those who cannot tolerate the toxicity of epilepsy medicine, non-traditional anti-epilepsy treatment might play a potential important role.
2.Effect of thymosin ?1 on percentage of T-lymphocyte subsets in in vitro peripheral blood mononuclear cells from gastric cancer patients
Xia YANG ; Feng QIAN ; Kaijun LIU ; Haiyang HE ; Yuanzhi LAN ; Yi TIAN ; Xiaolan FU ; Jian LI ; Ji ZHANG ; Zigang SHEN ; Jintao LI ; Yuzhang WU
Journal of Third Military Medical University 2002;0(12):-
Objective To investigate the effect of thymosin ?1 (T?1) on cellular immune function in gastric cancer patients through observing its treatment on the differentiation of T-lymphocyte subsets from screened peripheral blood mononuclear cells (PBMCs). Methods PBMCs were obtained by centrifugation of blood samples from 18 healthy subjects and 32 patients with gastric cancer,and then cultured in the presence of culture medium with addition of T?1 at 50,10 and 1 ?g/ml for 2 d. T lymphocyte subsets (such as CD4+,CD8+ and CD4+ CD25+ Foxp3+ T cells) and Th1/Th2 multiplex cytokines were detected by flow cytometry (FCM). Results After PBMCs isolated from healthy people and patients were incubated with or without T?1,there was no significant change in percentage of CD4+,CD8+ peripheral lymphocyte subsets and ratio of CD4+/CD8+. There was no obvious change in the percentage of CD4+ CD25+ Foxp3+ T lymphocyte subsets in the normal control,but a significant increase was observed in the cells from patients with gastric cancer after treatment (P
3.A study on the relationship between intrauterine infection and early-onset neonatal sepsis
Yuanzhi ZHONG ; Jinhu WANG ; Yuxia CHEN ; Yuqin YAN ; Tihai XIAO ; Ling LIU ; Zhen HE ; Wei SONG ; Guoqing HUANG ; Huayan LIU ; Benqing WU
Chinese Journal of Neonatology 2017;32(4):246-249
Objective To study the relationship between intrauterine infection and early neonatal sepsis.Method From October 2015 to September 2016,the clinical data of pregnant mothers and their newborns in Shenzhen Longhua District Central Hospital were collected,and data of Shenzhen People's Hospital from January 2016 to June 2016 were collected.100 pairs of pregnant mothers and their newborns with confirmed or suspected intrauterine infection were selected as the observation group,and another 100 pairs without intrauterine infection during the same period as the control group.The ratio of term infants vs.premature infants was 1∶ 1.The complete blood count (CBC),CD64,procalcitonin (PCT) and C-reactive protein (CRP) were measured in peripheral blood of all mothers on the day of delivery.The CBC,CD64,CRP,PCT,blood culture of both umbilical venous blood and peripheral blood in neonates were examined and the pathological examination of placenta was performed.Result The positive rate of placental pathology and umbilical cord blood culture in observation group were significantly higher than that in the control and the positive rate in preterms was higher than the terms in observation group (P < 0.05).No significant differences existed between term and premature newborns on the positive rate of peripheral blood culture (P > 0.05).The positive rate of blood culture from umbilical cord blood was higher than peripheral blood in observation group (P < 0.05),but no significant difference in control group (P > 0.05).The incidence of septicemia in term and premature newborns in observation group was significantly higher than the control group (P< 0.05).The CD64,PCT in mother's peripheral blood and umbilical cord blood,and CRP in mother's blood were all higher than the control group,the differences were statistically significant (P < 0.05),but CRP in umbilical cord blood in both group were similar (P > 0.05).The area under ROC curve of CD64 and PCT in mother's peripheral blood,CD64 and PCT in umbilical cord blood to diagnose early-onset septicemia in newborns was 0.755,0.793,0.852 and 0.811,respectively.Conclusion The risk of neonatal infections is significantly increased because of intrauterine infection.Combination of peripheral and umbilical blood cultures can increase the accuracy of sepsis diagnosis.Both CD64 and PCT in umbilical cord blood and maternal blood can be used as indicators of intrauterine infection with a predictive value in the diagnosis of early-onset neonatal sepsis.
4.Clinical feature analysis of subdural effusion/hematoma after shunt use of adjustable valves in children with hydrocephalus
Wei TANG ; Yuanzhi HE ; Hao DU
Chinese Journal of Applied Clinical Pediatrics 2022;37(20):1559-1562
Objective:To analyze the clinical data of children with hydrocephalus suffering from subdural effusion/hematoma after shunt(SEHS) with adjustable valves, and to provide reference for postoperative follow-up.Methods:A total of 102 children with hydrocephalus treated with adjustable valves in the Department of Neurosurgery, Wuhan Children′s Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology from August 2017 to September 2021 were enrolled and studied retrospectively.There were 16 cases with SEHS, 11 of whom were male and 5 were female.The age ranged from 3 months to 13 years (median: 2.5 years). The age, clinical manifestations, the time of SEHS occurrence, treatment methods(pressure regulation only or combined with drilling and drainage), and prognosis of the patients were analyzed.The pressure adjustment treatment was to increase the by 10-20 mmH 2O (1 mmH 2O=0.009 8 kPa) each time and the patients were followed up 2-4 weeks after the adjustment.If SEHS didn′t improve according to the follow-up results, pressure regulation combined with drilling and drainage was recommended. Results:Of the 16 patients with SEHS, 3 cases were over 3 years old, and the other 13 cases were 3 years old or below.Eleven cases were treated by pressure regulation only, and 5 cases who were all aged ≤3 years received pressure regulation combined with drilling and drainage.Symptoms occurred in 2 patients, including vomiting in 1 case, and head and limb shaking in the other case.Fourteen cases were asymptomatic.The time from shunt operation to the occurrence of SEHS was ≤1 month in 5 cases, who were all cured by pressure regulation only.SEHS occurred in 5 cases >1-3 months after shunt surgery, and 2 cases of them were treated by pressure regulation combined with dri-lling and drainage.Three cases had SEHS>3-6 months after shunt surgery, and 1 case of them was treated by pressure regulation combined with drilling and drainage.SEHS occurred in 3 cases more than 6 months after shunt surgery, and 1 case of them was treated by pressure regulation combined with drilling and drainage.For the patients who received pressure regulation combined with drilling and drainage, the time from shunt operation to the occurrence of SEHS was 1 month and 21 days, 2 months and 7 days, 4.5 months, 7.5 months, and 25.0 months, respectively.The time from the occurrence of SEHS to the last reexamination with no SEHS detected was ≤1 month in 7 cases (all were cured by pressure regulation only); >1-3 months in 5 cases (3 cases were treated by pressure regulation combined with drilling and drainage); more than 3 months in 4 cases (2 cases were treated by pressure regulation combined with drilling and drainage). For the patients who received pressure regulation combined with drilling and drainage, the time from the occurrence of SEHS to the last reexamination with no SEHS detected was 1 month and 14 days, 2.0 months, 3.0 months, 7.0 months and 8.0 months, respectively.Except for 2 cases who experienced pressure regulating valve failure, all other cases were cured.Six cases were unilateral SEHS, and the SEHS volume was about 11 to 75 mL (median: 39.0 mL). Ten cases were bilateral SEHS, and the SEHS volume was about 23-380 mL (median: 158.2 mL). The 6 cases were all cured by pressure regulation, and 5 cases of them had SEHS at the shunt tube insertion side.Conclusions:SEHS in children with hydrocephalus is generally asymptomatic and rarely causes clinical symptoms.SEHS mostly occurs within 6 months after operation, especially within 3 months.SEHS found in 1 month after surgery can be cured by increasing the shunt valve pressure only.Therefore, SEHS can be cured by pressure regulation only by shortening follow-up and identifying SEHS early after shunt operation.This will also reduce the probability that patients require the drilling and drainage operation.
5.Case report of primary meningeal melanocytoma in children
Hongmin ZHU ; Gefei WU ; Jianbo SHAO ; Huijing MA ; Hao DU ; Yuanzhi HE ; Lili LIU ; Zhisheng LIU
Chinese Journal of Applied Clinical Pediatrics 2019;34(23):1823-1825
6.Drug nanoclusters formed in confined nano-cages of CD-MOF: dramatic enhancement of solubility and bioavailability of azilsartan.
Yuanzhi HE ; Wei ZHANG ; Tao GUO ; Guoqing ZHANG ; Wei QIN ; Liu ZHANG ; Caifen WANG ; Weifeng ZHU ; Ming YANG ; Xiaoxiao HU ; Vikramjeet SINGH ; Li WU ; Ruxandra GREF ; Jiwen ZHANG
Acta Pharmaceutica Sinica B 2019;9(1):97-106
Tremendous efforts have been devoted to the enhancement of drug solubility using nanotechnologies, but few of them are capable to produce drug particles with sizes less than a few nanometers. This challenge has been addressed here by using biocompatible versatile -cyclodextrin (-CD) metal-organic framework (CD-MOF) large molecular cages in which azilsartan (AZL) was successfully confined producing clusters in the nanometer range. This strategy allowed to improve the bioavailability of AZL in Sprague-Dawley rats by 9.7-fold after loading into CD-MOF. The apparent solubility of AZL/CD-MOF was enhanced by 340-fold when compared to the pure drug. Based on molecular modeling, a dual molecular mechanism of nanoclusterization and complexation of AZL inside the CD-MOF cages was proposed, which was confirmed by small angle X-ray scattering (SAXS) and synchrotron radiation-Fourier transform infrared spectroscopy (SR-FTIR) techniques. In a typical cage-like unit of CD-MOF, three molecules of AZL were included by the -CD pairs, whilst other three AZL molecules formed a nanocluster inside the 1.7 nm sized cavity surrounded by six -CDs. This research demonstrates a dual molecular mechanism of complexation and nanoclusterization in CD-MOF leading to significant improvement in the bioavailability of insoluble drugs.
7.Two-sample bidirectional Mendelian randomization for analyzing the causal effect between gastroesophageal reflux disease and migraine headaches
Jiaxin MA ; Yuanzhi ZHOU ; Wenwen CHEN ; Yahan ZHAO ; Xu ZHANG ; Yarui LI ; Shuixiang HE ; Yan ZHAO
Journal of Xi'an Jiaotong University(Medical Sciences) 2024;45(2):262-270
【Objective】 To explore the causal association between the onset of gastroesophageal reflux disease (GERD) and migraine and to provide genetic evidence, a two-sample bidirectional Mendelian randomization (MR) method was used in this study. 【Methods】 Single nucleotide polymorphism (SNP) information for both samples was obtained from publicly available genome-wide association study (GWAS) databases, in which the appropriate SNPs were selected as instrumental variables, and then bidirectional MR analysis used five MR analysis methods including inverse variance weighting (IVW), MR-Egger regression, weighted median, weighted mode and simple mode methods, followed by sensitivity analysis. 【Results】 IVW showed positive results of forward MR analysis with GERD as exposure [OR=1.398 7, 95%CI (1.181 7-1.655 6), P=9.59×10-5] , while no positive significance of reverse MR analysis results with migraine as exposure (P>0.05). The same results were obtained in methods other than MR-Egger method. Meanwhile, none of the instrumental variables were found to be horizontally polytomous (P=0.92, P=0.64), and the results were robust after the leave-one-out method to exclude single SNPs. 【Conclusion】 There may be a unidirectional causal association between GERD and migraine, and GERD is a risk factor for migraine development.