2.Correlation between the expression of NF-kappaB and the T helper cell predominant differentiation in a rat model of otitis media with effusion.
Hua LIU ; Shou-qin ZHAO ; De-min HAN
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2007;42(9):699-700
Animals
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Male
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NF-kappa B
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metabolism
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Otitis Media with Effusion
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immunology
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metabolism
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physiopathology
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Rats
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Rats, Sprague-Dawley
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Th1 Cells
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cytology
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Th2 Cells
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cytology
4.The study of detecting and correcting part of biochemical markers by"B&G System"
Min QU ; Xi-Xin WU ; De-Hui LIU ;
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective To verify the accuracy of detecting part of biochemical markers of the new"B&G System".Methods Blood serum creatinine(SCr),urea nitrogen(BUN),serum uric acid(UA),Ca or P of the same serum example were detected by"B&G System"and Hitachi 7170S automatic biochemistry analysis instrument (7170S) respectively.Each biochemical marker was divided into two teams on the basis of measure values of 7170S, and then measure values of two methods were compared.If there were significant differences,the biochemical mark- ers's detection program of"B&G System"was corrected,and then measure values of two methods of corresponding biochemical markers were compared.Results Two methods' measure values of SCr of abnormal team,BUN of each team,SUA of each team and P of each team weren't significantly different,measure values of SCr of normal team,Ca of two teams were significantly different.After corrected"B&G System",two methods' measure values of sCr of normal team,Ca of two teams weren't significantly different.Conclusion"B&G System"through correction could accurately detect biochemical markers,and it's worth applicating in clinic.
5.Study on a new point mutation of nt3426 A --> G of mitochondrial DNA in a diabetes mellitus family.
Pei YU ; De-min YU ; De-min LIU
Chinese Journal of Medical Genetics 2003;20(3):235-237
OBJECTIVETo elucidate the relationship between point mutations of nt3243A --> G, nt3426 A --> G of mitochondrial DNA and type 2 diabetes mellitus(DM).
METHODSTwo hundred patients with type 2 DM and 180 controls with normal glucose tolerance and absence of DM family history were included. The mutations were determined by PCR-restriction fragment length polymorphism.
RESULTSThe point mutation nt3426A --> G of mitochondrial DNA ND1 was found in 2 of the patients with type 2 DM (1.0%) but in none of the controls (0). The incidence of this mutation showed no significant difference between the two groups(P>0.05). And none was found to have the mutation of nt3243 --> G.
CONCLUSIONThe point mutation nt3426 A --> G of mitochondrial DNA ND1 may not be an independent factor to cause type 2 DM.
Adult ; Aged ; Aged, 80 and over ; DNA, Mitochondrial ; analysis ; genetics ; Diabetes Mellitus, Type 2 ; genetics ; Family ; Humans ; Male ; Middle Aged ; Pedigree ; Point Mutation ; Polymerase Chain Reaction ; Young Adult
6.Study on the mitochondrial DNA mutations in patients with early-onset diabetes mellitus.
De-min YU ; Ming-zhen LI ; De-min LIU
Chinese Journal of Medical Genetics 2005;22(1):14-17
OBJECTIVETo investigate the prevalence of mitochondrial DNA (mtDNA) mutations in patients with early-onset diabetes in Tianjin, and to explore the relationship between mtDNA mutations and diabetes.
METHODS348 non-related patients whose age at onset of diabetes was less than 45 years were randomly recruited, and 207 non-related and non-diabetic subjects were enrolled as controls. All their clinical and biochemical data were collected. Total genome was extracted conventionally from the participants' peripheral leucocytes, and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and cloning techniques were applied to the screening of mtDNA mutations (including the 3316, 3394 and 3426 in ND1 region, 12026 in ND4 region, and tRNA [Leu(UUR)] 3243 A-->G mutation).
RESULTSThe authors found 17 diabetics harboring the 12026 A-->G mutation in ND4 region (4.9%), 10 diabetics with mutations in ND1 region (including 5 diabetics with the 3394 T-->C mutation, 4 diabetics with 3316 G-->A mutation, one with 3426 A-->G mutation), and only two with the known 3243 A-->G mutation (0.6%). On the contrary, one control subject with the 3316 G-->A mutation, two with 3394 T-->C mutation and four with 12026 A-->G mutation were found. The prevalence of mtDNA mutations in the patient group is significantly higher than that in the control group (3.3%) (P<0.05).
CONCLUSIONThe above findings suggest that mtDNA mutation may be implicated in the pathogenesis of the examined diabetes.
Adult ; Age of Onset ; China ; epidemiology ; DNA Mutational Analysis ; DNA, Mitochondrial ; chemistry ; genetics ; Diabetes Mellitus ; epidemiology ; genetics ; pathology ; Female ; Gene Frequency ; Humans ; Logistic Models ; Male ; Middle Aged ; Mutation ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length
7.Relationship between mutations of mitochondrial DNA ND1 gene and type 2 diabetes.
Pei YU ; De-min YU ; De-min LIU ; Kun WANG ; Xin-zhi TANG
Chinese Medical Journal 2004;117(7):985-989
BACKGROUNDRecent studies have indicated that many mutations in mitochondrial (mt) DNA NDI gene region are related to diabetes mellitus. In this study we explored the relationship between various mtDNA ND1 gene mutations and type 2 diabetes mellitus (DM) among Chinese.
METHODSUsing PCR restriction fragment length polymorphism (PCR-RFLP) analysis and gene sequencing, 4 spots of mtDNA (nt3243, nt3316, nt3394, nt3426) were screened in 478 diabetics and 430 non-diabetic subjects.
RESULTSIn diabetic group, there were 13 carriers (2.72%) of 3316 G-->A mutation,12 (2.51%) of 3394 T-->C mutation and 2 (0.42%) of 3426A-->G mutation. In controls, only 3394 T-->C mutation was observed in 2 subjects (0.47%). There was significant difference in the frequency of 3316 and 3394 mutation between two groups (P < 0.05, respectively). More subjects with mitochondrial DNA ND1 gene mutations had DM family history and greater tendency of maternal inheritance when compared to those patients without mutation in diabetic group (P < 0.01). A 3426 mutation diabetic pedigree was studied, and we found 12 maternal members in the family had the same mutation.
CONCLUSIONmtDNA ND1 gene mutations at nt3316 (G-->A), nt3394 (T-->C) and 3426 (A-->G) might contribute to the pathogenesis of DM with other genetic factors and environment factors.
Base Sequence ; DNA, Mitochondrial ; genetics ; Diabetes Mellitus, Type 2 ; genetics ; Humans ; Molecular Sequence Data ; Mutation ; NADH Dehydrogenase ; genetics ; Pedigree ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Sequence Analysis, DNA
8.Correlation of city school-aged children′s intelligence quotients with family factors
wei-min, LIU ; jiu-lai, TANG ; de, WU ; xiao-yan, XU ; xiang, ZHOU
Journal of Applied Clinical Pediatrics 1994;0(04):-
Objective To explore the correlation of city school-aged children′s intelligence quotients(IQ) with family factors.Methods Picking up 180 healthy children which aged 10-14 and their parents.Children′s IQ were tested with Wechsler intelligence Scale for Children- Revised(WISC-R).Their parents were investigated by using the questionnaire designed by ourselves about some factors of family which includes Eysenck Personality Questionnaire(EPQ), Home Education Index Measuring Scale (HEIMS),and so on. We analyzed the associations between children′s IQ and family factors with the applicable data about 114 only child. Results Multiple stepwise regression analyses show that some factors have significant effects on IQ of children(P
9.Influence of hypoxia inducible factor-1? on cervical cancer cell line HeLa in vitro
Yanxiang CHENG ; De-Min PU ; Rong LIU ; Tian LI ; Ling YIN ; Ding MA ;
Chinese Journal of Obstetrics and Gynecology 2001;0(08):-
0.05),but expression of VEGF,GLUT1 and MDR1 were all enhanced and overall proliferation was promoted,apoptosis inhibited [(11.46?0.28)% vs (29.27?0.18)%,(15.77? 0.49)% vs (31.13?0.08)%],and transmembrane behavior enhanced [(37?12)% vs (26?7)%, (40?9)% vs (28?5)%],and the variations were significant (P
10.Study on the association between prenatal examinations of Tibetan pregnant women and low birth weight infants
Qiong DE ; Yu WU ; Yu-tong ZHANG ; Jue LIU ; Min LIU
Chinese Journal of Disease Control & Prevention 2019;23(11):1348-1352
Objective To understand the relationship between the number of prenatal examination during pregnancy in Tibetan mothers and low birth weight infants, and to provide reference for improving the quality of antenatal care and reducing the incidence of low birth weight infants. Methods Tibetan women and newborns who gave birth in a hospital in Lhasa, Tibet from January 2012 to December 2018 were selected as research objects. The basic data, delivery materials and newborn data of all single births were collected. Logistic regression models were used to analyze the relationship between the number of maternal prenatal examinations and the birth weight of the newborn. Results In 5 563 pregnant women, the prenatal check-up rate was 10.48%. Among the newborns, low birth weight accounted for 11.32%. With the increase in the number of maternal births, the neonatal low birth weight rate showed a downward trend ( 2=14.57, P=0.002). Multivariate Logistic regression model showed that after controlling for maternal age, fetal gender, mode of delivery, fetal asphyxia and other confounding factors, the number of low prenatal examinations was still related to the occurrence of low birth weight infants. The incidence of low birth weight infants who gave birth to antenatal check-ups and 1-2 prenatal visits was 1.41 times (95% CI: 1.00-1.98) and 2.34 times (95% CI: 1.09-5.02) higher than those who received standardized prenatal checkups. Conclusions Tibetan pregnant women receive a lower proportion of standardized prenatal examination and there is a higher risk of low birth weight infants. It is recommended to strengthen the quality of maternal and child health care work in minority areas to ensure maternal and child safety.