1.Perinatal risk factors associated with neurobehavioral development of full-term small for gestational age newborn infants
Xiumei LIU ; Lixia LI ; Qing CHU
Chinese Pediatric Emergency Medicine 2012;19(5):481-483
Objective To explore perinatal risk factors associated with the neurobehavioral development of small for gestational age (SGA) full-term neonates.Methods This prospective cross-sectional study included 111 full-term newborn infants from Apr 2008 to Apr 2010 born in Yan-tai Yuhuangding Hospital.Detailed clinical data in perinatal period of all subjects were recorded.Infants aged 3 ~ 7 days were assessed with neonatal behavioral neurological assessment (NBNA) for neurobehavioral development.Logistic regression analysis was used to explore risk factors associated with the score of NBNA.Results Significant differences (P < 0.05) were found between full-term SGA (10.72 ± 1.41,7.13 ± 0.96,7.32 ± 0.74,37.16 ±1.32) and normal neonates (11.27 ± 1.04,7.89 ± 0.72,7.62 ± 0.64,39.12 ± 0.76) in terms of capacity,active and passive muscle tension and NBNA score.Full-term SGA neonates had lower score than control.Univariate logistic regression showed that delivery,placenta abnormalities,umbilical cord abnormalities,infection in perinatal period,gestational hypertension,twin pregnancy,hyperbilirubinemia affected neurobehavioral development of full-term SGA infants.Multivariate logistic regression showed that mothers' infection in perinatal period (OR =2.175,95 % CI 1.981 ~ 2.408,P < 0.05),twin pregnancy (OR =1.936,95% CI 1.517 ~2.368,P < 0.05) and hyperbilirubinemia (OR =1.518,95% CI 1.072-2.149,P < 0.05) were risk factors for neurobehavioral delay of full-term SGA infants.Conclusion Full-term SGA neonates showed poorer quality in neurobehavior.Risk factors associated with neurobehavior of full-term SGA infants included mothers' infection in perinatal period,twin pregnancy and hyperbilirubinemia.
2.DETECTION OF MITOCHONDRIAL MEMBRANE POTENTIAL CHANGES IN CARDIOMYOCYTES BY FLUORESCENT DYES JC-1
Yingqi LIU ; Tiande LI ; Xiaowe CHU
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
To explore the changes of mitochondrial membrane potential in rat cadiomyocyte apoptosis by fluorescent JC 1, H 2 O 2 was used to induce cadiomyocyte apoptosis, and JC 1 in combination with flow cyometry was used to detect the changes of mitochondrial membrane potential in the early stage of cadiomyocyte apoptosis. The results showed that living cardiomyocytes had a high mitochondrial membrane potential, JC 1 aggregates were formed in the inner membrane of mitochondria and emitted orange red fluorescence. H 2 O 2 caused the decrease of mitochondrial membrane potential, JC 1 aggregates were dissociated to monomer,which emitted green fluorenscence. So the red fluorescence decreased. It is suggested that JC 1 in combination with flow cyometry is an ideal method to detect the changes of mitochondrial membrane potential.
3.Effecte of the derivative of Gefitinib on proliferation of astrocytoma in vitro
Laibing LIU ; Liangzhao CHU ; Jian LIU ; Hua YANG ; Yumei LI
The Journal of Practical Medicine 2016;32(6):890-893
Objective The derivative of Gefitinib was used to treat glioma cells in vitro to explore a more effective new drug for the clinical treatment of astrocytoma. Methods (1) Fifteen kinds of gefitinib derivatives, gefitinib and temozolomide were used to treat glioma cells, and the effect of 0, 10, 15, 20, 25 and 30 μmol/L of each kind of drug on cell proliferation was detected by by MTT assay , respectively. (2) To calculate the concentration of IC50 , then select lower IC50 of derivativs combinate gefitinib and temozolomide with 10, 20 and 30 μmol/L to treat cells, then the apoptosis of cells were detected by flow cytometry. Expression of p-EGFR was detected by western–blot assay. Results (1) NO.LPY-5,9,11, but not other derivatives of Gefitinib could effectively inhibit the growth of cells. (2) IC50 of NO.LPY-9 was less than that of the 5th drug, and both of them were lower than those of gefitinib and temozolomide; NO. LPY-11 was excluded. (3) The cell apoptosis of No. LPY-9 was higher than that of gefitinib and temozolomide , respectively. However, No.LPY-9-induced cell apoptosis was significantly higher than that of No. LPY-5-induced cell. (4) Levels of p-EGFR expression in No.LPY-9 and gefitini-induced cells were significantly lower than that in the negative control group. Conclusion No.LPY-9 has asignificant inhibitory effect on glioma cells in vitro , resulting from the inhibition of the ERFR-mediated signaling pathways and induction of cell apoptosis.
4.Stereotactic radiotherapy for the elderly patients with brain metastases.
Yuanzhao LIU ; Gaofeng LI ; Mingyuan LIU ; Suhua XIAO ; Defa CHU
Chinese Journal of Geriatrics 2001;0(01):-
5 ml groups were 95.5% and 81.1% respectively. This difference was statistically significant (P5 ml groups were 4.5 % and 32.1%, respectively (P50 Gy was increased statistically, but the occurrence of complications was also increased. Conclusions Stereotactic radiosurgery improves the outcome of the elderly patients with brain metastases. Radiation dosage and tumor volume are significantly related with the therapeutic efficacy and the occurrence of complications.
5.Effectiveness of the Spot Vision Screener on vision screening of children without cycloplegia
Ji-Feng, YU ; Li, LI ; Hui-Hui, CHU ; Wen, LIU
International Eye Science 2015;(7):1285-1286
AlM: To evaluate the effectiveness of Spot Vision Screener on vision screening of children without cycloplegia.METHODS:A total of 87 children (174 eyes) aged from 2~9 years old were examined with Spot Vision Screener and optometrist before cycloplegia.RESULTS: Statistical analysis demonstrated that the cylinder diopter and axis, the equivalent spherical diopter in both eyes, and the spherical diaopter in left eye had no significant change ( P>0. 05 ). However, the spherical diaopter in right eye had statistical significance. CONCLUSlON: Spot Vision Screener is a suitable instrument in vision screening of children without cycloplegia.
6.Effect of punicalagin on osteoclast activation induced by titanium particles
Genglei CHU ; Sihan LIU ; Dongya LI ; Hongwei LI ; Kaijin GUO
Chinese Journal of Tissue Engineering Research 2016;20(12):1759-1765
BACKGROUND:Currently, there are few researches on the effect of punicalagin on the formation and differentiation of osteoclasts, and fewer researches on the mechanism of bone resorption diseases induced by wear particles. OBJECTIVE: To establish a model of titanium particles induced mouse monocyte/macrophage cel line (RAW264.7) differentiating into osteoclasts and to observe the effect of different concentrations of punicalagins on osteoclast proliferation and differentiation. METHODS: Mouse monocyte/macrophage cel lines (RAW264.7) were divided into five groups, cultured in the culture medium of common (blank group), 0.1 g/L titanium particle suspension, 0.1 g/L titanium particle suspension with 25 μmol/L punicalagins, 0.1 g/L titanium particle suspension with 50 μmol/L punicalagins, 0.1 g/L titanium particle suspension with 100 μmol/L punicalagins, respectively. The cel proliferative activity was detected by cel counting kit-8 assay at 1, 3 and 5 days. At 5 days after culture, number of osteoclasts was measured by tartrate-resistant acid phosphatase staining, the phosphorylation of IκBα and NF-κB p65 was detected by western blot assay, the mRNA expressions of nuclear factor of activated Tc1, tartrate-resistant acid phosphatase and matrix metaloproteinase-9 were measured by reverse transcription-PCR. RESULTS AND CONCLUSION:Compared with control group, titanium particles and different concentrations of punicalagin had no effect on the proliferation of RAW264.7 cels (P > 0.05). The number of tartrate-resistant acid phosphatase staining -positive cels, the phosphorylation of IκBα and NF-κB p65 as wel as the mRNA expressions of nuclear factor of activated Tc1, tartrate-resistant acid phosphatase and matrix metaloproteinase-9 were significantly increased compared with those of control group (P < 0.05,P < 0.01). And punicalagins in a concentration-dependent manner decreased the expression of the above indicators. These results indicate that punicalagin can inhibit osteoclast formation and differentiation.
7.Clinical treatment of infective endocarditis with vegetations in pregnant women and the outcomes of gestation
Li CHU ; Jun ZHANG ; Yanna LI ; Xu MENG ; Yanyan LIU
Chinese Journal of Obstetrics and Gynecology 2016;51(5):331-338
Objective To investigate the clinical treatment of infective endocarditis with vegetations in pregnant women and the outcomes of the gestation. Methods Nine cases of pregnant women diagnosed as infective endocarditis with vegetations in Beijing Anzhen Hospital, Capital Medical University from January 2001 to October 2015 were enrolled in retrospective analysis. Consultations were held by doctors from department of obstetrics, anesthesiology, cardiology, cardial surgery and extracorporeal circulation to decide the individualized treatment plan for the 9 cases of pregnant women after admissions. Clinical treatments including general treatment, anti-infection treatment, cardiac surgery, and termination of pregnancy surgery were completed through collaboration among related departments. The clinical characters, therapeutic regimens, maternal and neonatal outcomes of the 9 cases were analyzed. Results (1)Clinical characters: the ages of the 9 cases of pregnant women were from 25 to 36 years old. The onset gestational ages were from 19 to 36 weeks. Clinical symptoms: fever, cough, sputum and progressive anemia were the main symptoms. Patients had cyanosis of lips, could not lie on the back or even be orthopnea, when heart failure happened. Heart murmur was audible and splenomegaly was touched in physical examination. Blood cultures were positive. Basic heart disease types: 7 cases of congenital heart diseases included 2 cases of aortic insufficiency, 1 case of mitral insufficiency, 1 case of patent ductus arteriosus, 1 case of right ventricular outflow tract stenosis and 2 cases of ventricular septal defect.Two cases of rheumatic heart diseases included 1 case of mitral stenosis, 1 case of mitral stenosis after artificial disc changed and jammed. According to endocardial vegetations attached position there were 3 cases of mitral valve vegetations, 2 cases of pulmonary valve vegetations, 3 cases of aortic vegetations and 1 case of right ventricular outflow tract neoplasm. Preoperative heart function classification:1 case of levelⅡ, 3 cases of levelⅢ, 5 cases of levelⅣ.(2)Treatments:general treatment included oxygen uptake, rest in bed, cardiac strengthen and diuretic therapy, etc. Combined and adequate antibiotics were applied in anti-infection treatment according to drug sensitive test. Nine cases of pregnant women were all performed surgical treatment of heart diseases and removal of the endocardial vegetations. Caesarean sections were performed for 2 cases in second trimester and for 7 cases in last trimester. Cardiac surgery and caesarean section were operated in 6 cases at the same time among 22-34 weeks of pregnancy. Cardiac surgery were respectively operated in 2 cases 11 days and 32 days after the caesarean section at 33, 37 weeks of pregnancy. While Cardiac surgery was operated (at 26 weeks of pregnancy) before the caesarean section (at 37 weeks of pregnancy) in another 1 case. (3) Maternal and neonatal outcomes:7 cases of pregnant women were rescued successfully, while 2 cases of pregnant women were death. Postoperative heart function classification: 1 case of level Ⅰ, 2 cases of levelⅡ, 4 cases of levelⅢand 2 cases of levelⅥ. Neonatal survivals were 6 cases including 2case of full-term infants, 4 cases of preterm infants. Stillbirth or neonatal death were 3 cases, which included 2 cases performed caesarean section in second trimester and 1 case of very low weight infant who was given up treatment by family because of severe asphyxia. Followed up periods were from 1 to 7 years with an average time of (2.0 ± 1.6) years. Infants and young children grew and developed well during the period of follow up. Conclusions The risk is extremely high of pregnancy with infective endocarditis with vegetations. But there is still a way to save the maternal and neonatal life by using a multidisciplinary collaboration formulation and implementation of individualized treatment plan and selecting the appropriate time for heart surgery and the termination of pregnancy.
8.Pharmacokinetics of S-1 capsule in patients with advanced gastric cancer.
Heying LIU ; Li DING ; Yong YU ; Yan CHU ; He ZHU
Acta Pharmaceutica Sinica 2012;47(10):1363-9
The study is to investigate the pharmacokinetics of S-1 capsule (tegafur, gimeracil and potassium oxonate capsule) in patients with advanced gastric cancer after single and multiple oral administration. Twelve patients with advanced gastric cancer were recruited to the study. The dose of S-1 for each patient was determined according to his/her body surface area (BSA). The dose for single administration was 60 mg every subject. The dose for multiple administration for one subject was as follows: 100 mg x d(-1) or 120 mg x d(-1), 28-days consecutive oral administration. The pharmacokinetic parameters of tegafur, 5-fluorouracil, gimeracil, potassium oxonate and uracil after single oral administration were as follows: (2,207 +/- 545), (220.0 +/- 68.2), (374.9 +/- 103.0), (110.5 +/- 100.8) and (831.1 +/- 199.9) ng x mL(-1) for Cmax; (11.8 +/- 3.8), (4.4 +/- 3.3), (7.8 +/- 5.1), (3.1 +/- 0.9) and (8.8 +/- 4.1) h for t1/2, respectively. After six days oral administration, the average steady state plasma concentrations (Cav) of tegafur, 5-fluorouracil, gimeracil, potassium oxonate and uracil were (2,425 +/- 1,172), (73.88 +/- 18.88), (162.6 +/- 70.8), (36.89 +/- 29.35) and (435.3 +/- 141.0) ng x mL(-1), respectively, and the degree of fluctuation (DF) were (1.0 +/- 0.2), (2.5 +/- 0.4), (3.1 +/- 0.8), (2.4 +/- 0.8) and (1.5 +/- 0.3), respectively. The cumulative urine excretion percentage of tegafur, 5-fluorouracil, gimeracil and potassium oxonate in urine within 48 h were (4.2 +/- 2.8) %, (4.7 +/- 1.6) %, (18.5 +/- 6.0) % and (1.7 +/- 1.2) %, repectively, after single oral administration of S-1. The results exhibited that tegafur had some drug accumulation observed, and gimeracil, potassium oxonate, 5-fluorouracil and uracil had no drug accumulation observed.
9.Effect of Buyanghuanwu decoction on the expression of growth-associated protein 43 and synaptophysin after focal cerebral ischemia in mice
Zhiting LIU ; Tianhong YU ; Tiebing QU ; Lin LI ; Lisheng CHU
Chinese Journal of Behavioral Medicine and Brain Science 2012;(12):1070-1072
Objective To investigate the effect of Buyanghuanwu decoction(BYHWD) on the expression of growth-associated protein 43(GAP-43) and synaptophysin(SYP) after focal cerebral ischemia in mice.Methods Focal cerebral ischemia was induced by 30 min of middle cerebral artery occlusion followed by reperfusion.BYHWD (20 g/kg) was administered orally 24 h after ischemia and once a day.The neurological score and the corner test were used to evaluate sensorimotor function on 1,3,7,and 14 days after ischemia.The expression of GAP-43 and SYP in the ischemic boundary zone was determined by immunohistochemistry 14 days after ischemia.Results Compared with the model group,BYHWD significantly ameliorated neurological dysfunction at 3,7 and 14 days and reduced the number of right turn at 7 and 14 days after ischemia(P < 0.05).The average optical density of GAP-43 and SYP was 0.217 ±0.012 and 0.278 ±0.019 at the boundary zone in model group 14 days after ischemia,respectively.BYHWD also significantly increased the immunoreactivity of GAP-43 (0.250 ± 0.013)and SYP(0.323 ± 0.017) (P< 0.01).Conclusion BYHWD promotes axonal regeneration and synaptic plasticity in the ischemic boundary zone,which may contribute to functional recovery after focal cerebral ischemia.
10.Induction ways of bone marrow mesenchymal stem cells differentiating into nerve cells★
Zengsheng CHEN ; Qiang CHU ; Yanfeng LIU ; Xuan SONG ; Ping LI
Chinese Journal of Tissue Engineering Research 2013;(32):5757-5764
BACKGROUND:Currently, bone marrow mesenchymal stem cel s can differentiate into nerve cel s via many approaches. Different methods for inducing bone marrow mesenchymal stem cel s differentiating into nerve cel s have different ratios. OBJECTIVE:To investigate the difference between chemical method and co-culture method to induce the differentiation of rat bone marrow mesenchymal stem cel s into nerve cel s. METHODS:Rat bone marrow mesenchymal stem cel s were isolated and purified using whole bone marrow culture method, and then randomly divided into two groups:chemical group,β-mercaptoethanol was added;co-culture group, co-cultured in a Transwel chamber. RESULTS AND CONCLUSION:Visible protrusions from induced cel s showed radiation growth at 1 week of induced culture, and neuron-specific enolase staining was positive at 2 weeks of culture. Star-like structure of nerve cel s was visible in the co-culture group within 4-5 days of culture, and then more protrusions formed. Meanwhile, the positive rate of neuron-specific enolase was (70.82±2.46)%. After 6-7 days of culture, neuron-like cel s formed and were interconnected in the chemical group;while, the positive rate of neuron-specific enolase was (52.37±1.83)%. These findings suggest that cel microenvironment plays a leading role in the differentiation of bone marrow mesenchymal stem cel s into nerve cel s, and chemical induction method is inferior to the co-culture method.