3.Current situation of children's diseases and parents' overprotection
Yichao XU ; Xuan ZHOU ; Qing DU
Chinese Journal of Applied Clinical Pediatrics 2016;31(19):1515-1517
With the development of modern society,children get more and more attention from their parents.However,this situation often leads to parents' overprotection during their child-raising,especially when they have a child with pediatric diseases.Parents' inappropriate parenting may even affect the prognosis and outcome of their children's disease.According to recent studies about parenting of pediatric disease children,the parents would inevitably take overprotection,which might affect children's physical and mental health.Therefore,It is recommended that parents should correctly understand the diseases and their children,and choose appropriate parenting.
4.Hotspots in papers published in Journal of American Medical Informatics Association
Qing ZHANG ; Yang XUAN ; Shaoni LV
Chinese Journal of Medical Library and Information Science 2017;26(1):23-27,39
The high frequency subject headings were extracted from papers published in Journal of American Medi-cal Informatics Association from 2006 to 2015 to form a matrix of high frequency subject headings and their source papers. The co-occurrence of high frequency subject headings in a paper was clustered and analyzed, which showed that studies in Journal of American Medical Informatics Association from 2006 to 2015 were focused on the design and development of clinical software or platform, application of data mining in medical field, and clinical decision-making support system.
5.The significance of standardized fetal ultrasonographic screening in the first trimester
Ying-hua, XUAN ; Li, WANG ; Yu-qing, MA ; Ling, YAO ; Qing-qing, WU
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(11):935-940
Objective To evaluate the significance of standardized ultrasound examination of fetal structures in the ifrst trimester (11-13+6 weeks). Methods The ultrasound data of 29 858 fetuses who underwent the ifrst trimester screening were analyzed retrospectively in Beijing Obstetrics and Gynecology Hospital of Capital Medical University from January 2010 to December 2012 and followed up the cases with structural abnormalities and increased nuchal translucency (NT). Results Among 29 858 fetuses, 328 structural defects were detected in 284 fetuses (0.95%) by ultrasound in the first trimester, including fetal hydrops (124 cases), choroid plexus cysts (36 cases), exencephaly (32 cases), gastroschisis (24 cases), exomphalos (22 cases), cardiac defects (19 cases), megacystis (14 cases), spine abnormalities (10 cases), meningoceles/encephaloceles (9 cases), alobar holoprosencephaly (8 cases), hydrocephaly (7 cases), abnormalities of extremities (7 cases), acrania (6 cases), amniotic band syndrome (4 cases), abdominal cyst (3 cases) and conjoined twins (3 cases). Pregnancy was terminated in all cases (115) with exencephaly, gastroschisis, exomphalos, meningoceles/encephaloceles, alobar holoprosencephaly, hydrocephaly,abnormalities of extremities, acrania, amniotic band syndrome and conjoined twins, and the defects were verified by the gross appearance of fetuses. Two cases of megacystis were turned out to be normal during follow-up while 1 case was proved to be aneuploid and 1 other case progressed to multiple abnormalities during the second trimester. Most choroid plexus cysts, except 1 case of aneuploid, were normal during the second and the third trimester follow-ups by ultrasound. Thirteen cases of fetal hydrops were found to be aneuploids and 4 hydrops cases were proved to be complicated with other structural defects during the second and the third trimester. NT was increased in 422 cases (1.41%), among which 122 cases (28.91%) were complicated with structural defects and/or fetal hydrops. Ninty-nine cases with increased NT underwent chromosomal examination and 38 cases were found to be aneuploides. During the follow-up of 298 cases with increased NT who continued pregnancy, 21 structural abnormalities were found, including cardiac defects (14 cases), neural abnormalities (4 cases) and diaphragmatic hernia (3 cases). Conclusion The standardized fetal ultrasound in the first trimester is a effective tool for the screening of aneupolides and major structural abnormalities.
6.Thallium poisoning: report of an autopsy case.
Xin-biao LIAO ; Qing-song YAO ; Yi-xuan SONG
Chinese Journal of Pathology 2012;41(8):567-567
7.Effect of Chinese propolis on PC-PLC activity and TLR4 expression in LPS-treated vascular endothelial cells
Hongzhuan XUAN ; Qing SANG ; Yajing LI ; Fuliang HU
Chinese Journal of Pathophysiology 2011;27(7):1257-1263
AIM: To investigate the effect of Chinese propolis on the activity of phosphatidylcholine-specific phospholipase C (PC-PLC) and the expression of Toll-like receptor 4 (TLR4) in LPS-treated vascular endothelial cells (VECs). METHODS: Confluent VECs were stimulated with LPS at the concentration of 100 μg/L in the presence of 0.5% fetal bovine serum. The cells were treated with Chinese propolis at the concentration of 12.5 mg/L for 12 h and 24 h. The viability of VECs and the level of nitric oxide (NO) were detected by sulforhodamine B (SRB) assay and chemical method, respectively. The activity of PC-PLC was measured using L-α-phosphatidylcholine as substrate. The protein levels of TLR4, nuclear factor-Κb p65 (NF-Κb p65) and p53 were determined by Western blotting. The level of intracellular reactive oxygen species (ROS) was examined using a fluorescent probe, 2',7'-dichlorodihydrofluorescin (DCHF). For the measurement of mitochondrial membrane potential, the fluorescent dye JC-1 was used. RESULTS: Treatment with Chinese propolis for 24 h had no effect on the viability of VECs. However, the levels of NO and ROS were significantly decreased by Chinese propolis. PC-PLC activity and NF-Κb p65 expression were significantly depressed by Chinese propolis treated for 12 h, and the expression of TLR4 and p53 were dramatically decreased by Chinese propolis treated for 12 and 24 h. No effect of Chinese propolis on mitochondrial membrane potential was observed. CONCLUSION: Chinese propolis depresses the activity of PC-PLC and the expression of TLR4, and then inhibits the downstream signal molecules such as NF-Κb p65, p53, ROS and NO in VECs.
9.Management of cardiac surgery with cardiopulmonary bypass in pregnancy
Yulong XUAN ; Jun PAN ; Qing ZHOU ; Qiang WANG ; Dongjin WANG
Chinese Journal of Thoracic and Cardiovascular Surgery 2016;32(5):306-308
Cardiac surgery carried out on cardiopulmonary bypass(CPB) in a pregnant woman is associated with poor neonatal outcomes although maternal outcomes are similar to cardiac surgery in non-pregnant women.Most adverse maternal and fetal outcomes from cardiac surgery during pregnancy are attributed to effects of CPB.The CPB is associated with utero-placental hypoperfusion due to a number of factors,which may translate into low fetal cardiac output,hypoxia and even death.Better maternal and fetal outcomes may be achieved by early pre-operative optimization of maternal cardiovascular status,use of perioperative fetal monitoring,optimization of CPB,delivery of a viable fetus before the operation and scheduling cardiac surgery on an elective basis during the second trimester.
10.Protective effects of vascular endothelial growth factor on cerebral ischemia
Xue SHEN ; Lihui XUAN ; Rongyin QING ; Yan ZHU ; Yingzhu CHEN
International Journal of Cerebrovascular Diseases 2014;22(9):704-708
Vascular endothelial growth factor (VEGF) is an endothelial cell-specific mitogen.Studies have shown that VEGF is closely associated with ischemic stroke,and this makes it possible to intervene in ischemic stroke from the level of VEGF and its receptor.This article reviews the biological effect of VEGF and its receptor,mechanism of action involving in various stages of ischemic stroke,and the therapeutic prospect in ischemic stroke.