2.Research progress of risk factors for neonatal cerebral infarction
Qi GAO ; Xiuying TIAN ; Jun ZHENG
Chinese Journal of Applied Clinical Pediatrics 2014;29(18):1419-1420
Neonatal cerebral infarction is an area of damaged cerebral tissue resulting either from disruption to blood flow in a major cerebral artery from thrombosis or embolism or from thrombosis in a major cerebral vein.The pathogenesis is unknown at present,many studies have shown that genetic,mother hypertension,gestational diabetes,smoking,neonatal congenital heart disease,infections,meningitis are the risk factors of neonatal cerebral infarction.
3.Comparison between single nucleotide polymorphism array and karyoty-ping in prenatal diagnosis in Down’ s screening abnormal pregnancy
Xiaoyi BAI ; Jun ZHANG ; Qi TIAN ; Junwei LIN ; Hongying HOU
Chinese Journal of Pathophysiology 2015;33(4):707-712
[ ABSTRACT] AIM:To evaluate the clinical application of single nucleotide polymorphism array ( SNP array) in prenatal diagnosis for screening the abnormality of women with Down’ s syndrome ( DS) .METHODS:The amniotic fluid samples ( n=312) collected by amniocentesis for the DS screening abnormality women were tested by karyotyping and SNP array analysis, respectively.The findings of karyotyping and SNP array analysis were compared.RESULTS:Two cases of trisomy 21 were identified by karyotyping and SNP array analysis, but SNP array analysis failed to identify 6 cases of chro-mosome balanced structural rearrangement.SNP detected 176 cases copy number variants ( CNVs) in 303 cases normal karyotype were detected by SNP, including 106 benign CNVs, 61 variants of unknown significance (VOUS), 9 de novo CNVs, and none of them was pathogenic.The distribution difference of CNVs in DS screening positive group and DS screening positive plus advanced maternal age group was not statistically significant ( P>0.05) .Furthermore, we reported 14 kinds of CNVs for the first time in population.CONCLUSION:SNP array can further assure chromosome microdupli-cation/microdeletion.In normal karyotype fetus of prenatal diagnosis, SNP can detect some clinical significant CNVs.
4.Effect of breathing andDaoyin exercises on the quality of life in patients with chronic obstructive pulmonary disease
Qi CHEN ; Miaoyan SHI ; Wei ZHANG ; Jun TIAN
Journal of Acupuncture and Tuina Science 2015;(6):353-360
Objective:To observe the effect of breathing andDaoyin exercises on the quality of life in patients with stable chronic obstructive pulmonary disease (COPD) due to deficiency of the lung and kidney (grade II-III).
Methods:A total of 60 eligible cases were randomly allocated into a treatment group (n=30) and a control group (n=30) by random number table. Cases in the control group received routine Western medical treatment, whereas cases in the treatment group conducted breathing andDaoyin exercises in addition to routine Western medical treatment. Patients in both groups were treated for a total of 3 months. Then the observation was made on changes in pulmonary ventilation function, major clinical symptoms, modified Medical Research Council scale (mMRC), distance in 6-minute walk test (6-MWT), COPD assessment test (CAT) and efficacy satisfaction questionnaire for COPD (ESQ-COPD) before and after treatment.
Results:After treatment, the total effective rate was 80.0% in the treatment group, versus 66.7% in the control group, showing a statistical difference (P<0.05). Patients in the treatment group obtained more significant improvement in coughing, sputum production, dyspnea and shortness of breath than those in the control group (P<0.05). Patients in the treatment group obtained more significant elevation in the forced expiratory volume in 1 second percentage of predicted value (FEV1%) and peak expiratory flow rate (PEF%) than those in the control group (P<0.05). Patients in the treatment group obtained lower mMRC score than those in the control group (P<0.05). Patients in the treatment group obtained longer 6-MWT distance than those in the control group (P<0.05). Patients in the treatment group obtained lower CAT score (P<0.01) and higher ESQ-COPD score (P<0.05) than those in the control group.
Conclusion:Breathing andDaoyin exercises combined with routine Western medical treatment are effective for stable COPD (grade II-III) due to deficiency of the lung and kidney and can improve the patients’ quality of life.
5.Effect of adding time of human milk fortifier on growth and incidence of complications of very low birth weight premature infants
Qi GAO ; Yajuan ZHANG ; Xiuying TIAN ; Jun ZHENG ; Xingbo MU
Chinese Journal of Applied Clinical Pediatrics 2017;32(7):528-531
Objective To investigate the effects of human milk fortifier(HMF)addition at different time points on the growth,development and the incidence of complications in very low birth weight(VLBW)infants.Methods A total of 93 VLBW infants admitted into Neonatal Intensive Care Unit of Tianjin Central Hospital of Obste-trics and Gynecology from January to September 2015 with more than 80%of total milk intake during hospitalization,excluding those who had severe asphyxia or abandoned treatment and died,were collected.The included cases were divided into 2 groups by using completely randomized grouping method,early fortification group(n=48)and delayed fortification group(n=45)adding HMF with the enteral intake of 50 mL/(kg·d)and 100 mL/(kg·d),respectively.The outcomes included growth development and the incidence of complications during hospitalization.Then,t test and chi-square test of independent samples were used for statistical analysis.Results There was significant difference in the weight growth rate between the 2 groups,and the growth rate of early fortification group and delayed fortification group were(15.4±2.4)g/(kg·d)and(13.6±2.3)g/(kg·d),respectively(t=3.043,P=0.004).There was no significant difference in height growth rate,head circumference growth rate,weight at 34 weeks postmenstrual age,time of recovering birth weight and parenteral nutrition,hospitalization duration,body weight,body length,head circumference at discharge and the incidence of extrauterine growth retardation between the 2 groups(all P>0.05).There was no statistical difference in incidence of feeding intolerance,necrotizing enterocolitis,nosocomial infection,retinopathy of prematurity,bronchopulmonary dysplasia between the 2 groups(all P>0.05).Conclusions HMF with enteral intake of 50 mL/(kg·d)contributes to weight gain rate in VLBW infants during hospitalization,but not to the increase in the incidence of complications.
6.Influence of RNAi on the silencing expression of E-cadherin and the proliferation ability of Hep-2 trained in vitro
Jing SUN ; Jun TIAN ; Qi CHEN ; Guiqing WU
Chinese Archives of Otolaryngology-Head and Neck Surgery 2016;23(9):507-510,514
OBJECTIVE To explore the effect of E-cadherin on the proliferation ability of Hep-2 by method of RNA interference technology to silence the expression of E-cadherin. METHODS The specific siRNA sequences and non-silencing siRNA were designed and synthesized. Hep-2 cells were transfected and then the down expression of E-cadherin gene in vitro cultured Hep-2 cells were got. The silencing effect of E-cadherin gene was explored by Fluorescence Quantitative Polymerase Chain Reaction and the proliferation of the transfected Hep-2 cells were detected in vitro by MTT assay. RESULTS 1.When transfected with the ratio of recombinant plasmid and the quality of liposome volume at 1:1, the transfection efficiency at the siRNA-3 group was the highest and can be up to 65%. 2.The results of Fluorescence Quantitative Polymerase Chain Reaction: recombinant plasmid pRNAT-U6.1/Neo-siRNA1, pRNAT-U6.1/Neo-siRNA2 and pRNAT-U6.1/Neo-siRNA3 can down regulate the expression of E-cadherin mRAN. Set blank control group as a baseline (set to 1), the changes of expression of E-cadherin relative to β-actin in siRNA-1group was 0.00092, siRNA-2 group was 0.00143, siRNA-3 group was 0.00045 and the negative control group was 3.44898. The difference was statistically significant (P<0.05). 3. MTT: The growth rate of Hep-2 cells treated by specific siRNA was faster than that of the control group, and the difference was statistically significant (P<0.05). CONCLUSION Effectively inhibition the expression of E-cadherin's mRAN can enhance the proliferation of Hep-2 cells.
7.Complications and growth of very low birth weight infants fed by breast feeding versus formula feeding
Qi GAO ; Xiuying TIAN ; Jun ZHENG ; Xiaopeng WANG ; Xindan ZHANG ; Na WANG
Chinese Journal of Perinatal Medicine 2015;18(10):766-769
Objective To study the incidence of complications and the influence on early postnatal growth and development in very low birth weight infant(VLBWI) fed by breast milk.Methods From January 1, 2010 to December 31, 2013, 351 VLBWIs, who were appropriate for gestational age and hospitalized in Neonatal Intensive Care Unit of Tianjin Central Hospital of Obstetrics and Gynecology, were included in this study after exclusion of those with small for gestational age, large for gestational age, severe perinatal asphyxia at birth, withdrawing treatment or death, and mixed feeding infants.The group of formula-fed infants (FFI) were 168 VLBWI admitted between January 1, 2010 to December 31, 2011 and the group of breast milk-fed infants (BFI) were 183 VLBWI admitted between January 1, 2012 to December 31, 2013.For BFIs, we added human milk fortifier when oral intake reached 100 ml/kg.All subjects were followed up to 40 weeks of corrected gestational age.We compared the incidence of complications and infantile growth and development from birth to 30 days old between the two groups.Independent sample t-test and Chi-square test were applied for statistical analysis.Results The incidence of feeding intolerance in FFIs was higher than that of the BFIs [27.4% (46/168) vs 15.3% (28/183)], so was the incidence of necrotizing enterocolitis [14.9% (25/168) vs 5.5% (10/183)] (x2=7.683 and 8.651, both P < 0.05).The incidence of nosocomial infection, retinopathy of prematurity and bronchopulmonary dysplasia in FFI and BFI were 34.5% (58/168) vs 33.3% (61/183), 15.5% (26/168) vs 10.4% (19/183), and 11.3% (19/168) vs 9.3% (17/183), but none of them showed significant difference between the two groups (x2=0.055, 2.033 and 0.388, all P > 0.05).Significant difference was neither found in weight gain from birth to 30 days old [(304± 137) vs (308± 123) g], height growth [(2.6± 1.1) vs (2.7± 1.2) cm] and head circumference growth [(2.5± 1.0) vs (2.4±0.9) cm] between the FFIs and BFIs (t=0.106, 0.614 and 0.485, all P > 0.05).Conclusion Breast feeding is beneficial to VLBWI in decreasing the incidence of feeding intolerance and necrotizing enterocolitis without adverse effect on their early postnatal growth and development.
8.Influence of gestational age and delivery mode on neonatal pulse oxygen saturation shortly after birth
Yajuan ZHANG ; Xiuying TIAN ; Jun ZHENG ; Junling MA ; Yinzhu ZHANG ; Qi GAO ; Shan ZHENG
Chinese Journal of Perinatal Medicine 2015;18(9):666-669
Objective To explore the trend of preductal pulse oxygen saturation (SpO2) during 10 min after birth in newborns born at different gestational age and through different delivery mode.Methods From May 2014 to August 2014,319 neonates,born in Tianjin Central Hospital of Obstetrics and Gynecology and whose Apgar score at 1 min after birth ≥ 8,were included into the study.Term infants were grouped into vaginal delivery group (n=102) and caesarean group (n=117) according to the delivery mode.Infants born through caesarean section were divided into three groups,including 30-33+6 weeks (n=50),34-36+6 weeks (n=50) and 37-41+6 weeks (n=117) group according to the gestational age at birth.Immediately after the umbilical cord clamped,preductal SpO2 was recorded at each minute from one to ten minutes using the pulse oximetry.Oneway analysis of variance and two independent sample t test were applied for statistical analysis.Results At each time point within ten minutes after birth,the preductal SpO2 for preterm infants of 30-33+6 weeks gestation in the caesarean group were (54± 3)%,(59± 3)%,(65 ±4)%,(70±4)%,(75 ±4)%,(80±4)%,(84± 3)%,(89± 3)%,(91 ± 3)% and (93 ± 2)%,respectively,which were significant lower than those of the 34-36+6 weeks group [(57 ± 5)%,(66 ± 4)%,(72 ± 6)%,(78 ± 6)%,(83 ± 6)%,(87 ± 6)%,(90± 5)%,(92 ± 4)%,(94± 4)% and (95 ± 4)%,respectively] and of the term infants [(58 ± 3)%,(67 ± 4)%,(73 ± 5)%,(78 ± 6)%,(83 ± 6)%,(87 ± 6)%,(90± 5)%,(92± 5)%,(94± 3)% and (95± 3)%,respectively] (all P ≤ 0.05).While the corresponding preductal SpO2 for term infants in the vaginal delivery group were (61 ± 6)%,(69± 7)%,(75 ± 6)%,(81 ± 7)%,(86± 6)%,(90 ± 6)%,(93 ± 5)%,(94± 4)%,(95 ± 4)% and (96 ± 3)%,respectively,which were all higher than those of term infants in the caesarean group (all P ≤ 0.05).Conclusions The preductal SpO2 for preterm infants of 30-33+6 weeks of gestation is lower than that of preterm and term infants of ≥ 34 weeks of gestation at all time points within ten minutes after birth.The preductal SpO2 for term infants born through vaginal delivery is higher and rising faster than that of term infants born through caesarean section at all times.
9.Changes of AC activity and content of cAMP in hypothalamus of rats with fever and hypothermia
Yun QI ; Hairu HUO ; Shuying GUO ; Jun ZHOU ; Jiali TIAN ; Tinglian JIANG
Chinese Journal of Pathophysiology 1986;0(04):-
AIM: To observe the changes of AC activity and content of cAMP at different time point in hypothalamus of rats with fever and hypothermia. METHODS: Radioisotope method was used to measure the enzymatic activity of AC and the content of cAMP. RESULTS:(1)The fresh yeast caused fever after making model 4 h( P
10.Evaluation of long term effects of arthroscopic knee debridement and reconstructing for treating osteoarthritis in patients with Kaschin-Beck disease
Ming, LING ; Xiang-hui, HUANG ; Zhi, YI ; Yan-hai, CHANG ; Jun, LIU ; Jie, QI ; Xin, TIAN
Chinese Journal of Endemiology 2010;29(5):559-561
Objective To observe the long term effects of arthroscopic knee debridement and reconstructing operation for treating osteoarthritis in patients with Kaschin-Beck disease. Methods Thirty-one cases of patients with Kaschin-Beck disease were followed for 6 years after operation of articular clearing by arthroscope. Index of pain, symptoms of self-evaluation, range of motion, walking distance, standing test by affected leg when bending at 30° or 60° were recorded and compared with the preoperative results. Results Twenty-four cases were followed up for 6 years. Six years after operation the pain index(3.38 ± 2.87) was dramatically decreased compared to that before operation (6.88 ± 1.45, t = 5.30, P < 0.05). Patients symptoms markedly improved by subjective self-evaluation was 70.83% (17/24), the effective rate was 100% (24/24). The number of cases that could stand up when leg bending at 30° or 60° were 21,18 cases, respectively, compared with that of preoperative of 14, 11 cases, respectively, the difference was statistically significant(x2 = 5.17,4.27, all P < 0.05). Six years after operation the walking distance(3 cases < 1 km, 11 cases 1 - 5 km and 10 cases > 5 km) were greatly improved compared to the results before operation (12 cases < 1 km, 9 cases 1 - 5 km and 3 cases > 5 km, U = 2.88, P <0.05). Six years after operation the knee activity[(132.25 ± 14.52)°] remained at the same level, compared with that of preoperative [(131 .58 ± 14.68) °], the difference was not statistically significant (t = 0.16, P > 0.05) .Conclusions The method of arthroscopic joint debridement to cure Kaschin-Beck disease knee osteoarthritis can significantly reduce pain, improve function and walking distance, with more stable long-term satisfactory outcome.