1.Effects of human immunodeficiency virus infection on pregnancy outcome
Jianchun DONG ; Yanqiu MA ; Yuyan MA
Chinese Journal of Obstetrics and Gynecology 2001;0(08):-
Objective To investigate the effects of human immunodeficiency virus (HIV) infection on the pregnancy outcome and the incidence of vertical transmission in HIV positive pregnant women Method 86 cases of HIV positive pregnant women and their infants were evaluated retrospectively, and HIV antibody in peripherial blood was detected using enzyme linked immunosorbent assay (ELISA) Results Compared with normal control group, the incidences of abortion, preterm birth, low birth weight and small for gestational age babies were 9 3%, 14 0%, 16 3% and 10 5%, respectively ( P
2.Correlation between Orexin A and Vaspin in Lipid Metabolism in Obese Rats with Insulin Resistance
Lina MA ; Yuyan ZHAO ; Xiaocen CHANG
Journal of China Medical University 2015;(2):105-108
Objective To investigate the correlation between orexin A and the serine proteinase inhibitor vaspin in obese rats with insulin resis?tance(IR)induced by high?fat diet and elaborate the possible action mechanism of orexin involvement in fat metabolism in IR pathological process. Methods A total of 75 4?week?old male Sprague?Dawley rats were randomly divided into the normal dietary group(NC group,n=20)and the high?fat dietary group(HF group,n=55)to establish the model of obese rats with IR,the euglycemic insulin clamp technique was used to determine re?lated indicators of insulin resistance and lipid metabolism. The rats were treated with orexin A(1×10-8?1×10-6 mol/L)by hypodermic injection. The serum levels of orexin A and vaspin in rats were detected with enzyme linked immunosorbent assay. Results After 6 weeks of high?fat diet,the se?rum glucose,insulin,TC,TG and LDL?C were increased significantly in HF group than in NC group,while GIR60~120 in obese rats was decreased significantly[(16.31 ± 1.54)vs(30.22 ± 2.76)mg/(kg · min),P<0.05]. The serum vaspin level was increased 177.08%in HF group compared with NC group(P<0.05). With hypodermic injection of orexin A(1×10-8 mol/L,1×10-7 mol/L and 1×10-6 mol/L),the levels of serum vaspin in?creased 25.00%,68.75%,and 120.83%in NC group and increased 7.52%,24.06%,and 40.60%in HF group. There was a positive correlation be?tween vaspin and orexin A,glucose,insulin,TC,TG,and LDL?C(r1=0.482,P1=0.02,r2=0.515,P2=0.02,r3=0.303,P3=0.04,r4=0.388,P4=0.03,r5=0.255,P5=0.04,r6=0.253,P6=0.04)and a negative correlation between vaspin and HDL?C(r=-0.226,P=0.04)in obese rats with IR. Conclusion High?fat diet can induce insulin resistance and obesity in rats,and orexin A is closely correlated to vaspin in obese rats with insu?lin resistance. Orexin A increases serum vaspin expression and thus involves in onset of insulin resistance in obese rats.
3.Expression of orexin A and leptin in alimentary obesity rat and its clinical significance
Yuyan ZHAO ; Lu WANG ; Dongjie MA ; Lei TIAN ; Delu ZHENG
Chinese Journal of Geriatrics 2011;30(8):684-686
Objective To evaluate the relationships of the expression of orexin A in hypothalamus with hyperleptinemia, hyperinsulinism, and hyperlipidemia in alimentary obesity rats.Methods The alimentary obesity rat model was induced by high-fat diet in Wistar rats. The levels of leptin, insulin, C-peptide, total cholesterol (TC) and triglyeride (TG) were detected by luminescent immunoassay and biochemistry enzymic method. The gene expression of orexin A in rat hypothalamus was detected by real-time PCR. The correlation between orexin A and leptin was analyzed. Results After 8 weeks of high-fat diet feeding, the body weight, Lee's index, blood glucose, TG and TC significantly increased in obesity rat group (P<0. 01). The levels of serum leptin, insulin and C-peptide were significantly higher in obesity rats than in controls [( 1.74±0. 36)μg/Lvs. (1.27±0.11) μg/L, (35±5) MIU/L vs. (23±4) MIU/L, (0.21±0.04) μg/L vs.(0. 14±0. 03) μg/L respectively, P<0.01]. However, the level of orexin A mRNA was lower in obesity rats than in controls (6.8±2.3 vs. 14.5±3.6, t=-8.06, P<0.01). The correlation coefficient (r) of orexin A mRNA with serum leptin, insulin, and C-peptide in alimentary obesity rat were -0. 726 (P<0.01), -0. 506 (P<0.01) and -0. 664 (P<0.01), respectively. Conclusions High-fat diet can induce leptin-resistance and alimentary obesity in Wistar rat. The down-regulation of orexin A in rat hypothalamus would be correlated closely to the leptin and insulin resistance in alimentary obesity.
4.The clinic significance of TIP30 and VEGF-C protein expressions in small cell lung cancer
Xiaoli LI ; Yina GAO ; Jianhui LI ; Yanying WANG ; Yuyan MA
Practical Oncology Journal 2015;(2):116-121
Objective To investigate the correlation between TIP 30 and VEGF-C expression and clini-cophathological characteristics in resected small cell lung cancer ( SCLC) patients and to identify patients with in-creased risk of cancer recurrence and to provide a theoretical basis for the further clinical prevention of SCLC . Methods Sixty eight resected SCLC patients were included in this study .Paraffin-embedded specimens of pa-tients were used for the evaluation of TIP 30 and VEGF-C expression by immunohistochemistry .Results The expression of VEGF-C had positive correlation with lymph node metastasis .TIP30 expression was positively cor-related with VEGF-C expression.Patients with low TIP30 expression had shorter Overall survival (OS)and Dis-ease-Free survival(DFS)than those with high TIP30 expression.OS and DFS of the patients with VEGF -C-positive tumors were significantly lower than that of the patients with VEGF -C negative tumors .The multivariate Cox regression analysis showed that low TIP 30 and high VEGF-C expression were independent markers of poor OS(P<0.01)in operable SCLC patients.Conclusion The expression of VEGF -C shows positive correlation with lymph node metastasis .Low TIP30 and high VEGF -C expression are independent prognostic markers of poor overall survival in resected SCLC patients .
5.Study on prenatal diagnosis using fluorescence quantitative polymerase chain reaction for congenital toxoplasmosis
Yuyan MA ; Ruili MU ; Leiyi WANG ; Sen JIANG ;
Chinese Journal of Obstetrics and Gynecology 2001;0(01):-
Objective To investigate prenatal diagnosis and treatment of toxoplasmosis in fetuses with fluorescence quantitative polymerase chain reaction (FQ PCR) technique Methods Of the 70 pregnant women with toxoplasma(TOX) DNA positive , TOX DNA in amniotic fluid and/or fetal umbilical cord blood was detected with FQ PCR technique to diagnose fetal infection 48 ones were given routine treatment with spiramycin for 2 therapy periods Ultrasound examination were undertaken in all of pregnant women to monitor fetal growth Results Of the 70 cases with TOX DNA positive, TOX DNA was detected in 21 fetuses TOX DNA positive rates were similar in amniotic fluid and umbilical cord blood The higher the TOX DNA, the higher fetal infectious rate Fetal infectious rate was lower in treatment group(21%) than that in control group (50%), there was a statistically difference between two groups Conclusions Maternal TOX infection may cause fetal damage Detection of TOX DNA in amniotic fluid with FQ PCR technique can diagnose fetal toxoplasmosis exactly Treatment in pregnant period may decrease intrauterine infection rate
6.Association between rheumatoid arthritis and shared epitope of HLA-DRB1 gene in Shandong population
Xingfu LI ; Fang ZHANG ; Zhenglun PAN ; Yuyan MA ; Huaxiang LIU ;
Chinese Journal of Rheumatology 2003;0(09):-
Objective To investigate the association between rheumatoid arthritis (RA) and the presence of the shared epitope (SE) of HLA DRB1 gene in Han nationality of Shandong population.Methods The method of DNA amplification with sequence specific primers (PCR SSP) was used to determine 17 alleles of HLA DRB101,04,10 genotypes in 132 RA patients and 130 healthy controls from the Han nationality population in Shandong.Results The frequencies of SE were significantly increased in RA patients compared with controls (50 0% vs 22 3%, P
7.Effect of nano-sized-Fe3O4-lipoteichoic acid from Bifidobacterium on cytokine expression in human gastric cancer in nude mice
Hongrui JIANG ; Yanchun LIANG ; Yuyan MA ; Ning LIU
Chinese Journal of Microbiology and Immunology 2008;28(8):754-759
Objective To investigate the effect of lipoteichoic acid from Bifidobacterium loaded with magnetic particle nano-sized-Fe3O4(nano-sized-Fe3O4-BLTA)on several cytokines in vivo expression in beterologous graft model for human gastric cancer in nude mice.and to analyze the inhibition mechanism of nano-sized-Fe3 O4-BLTA on BGC-823 human gastric carcinoma transplanted tumor.Methods Forty male nude mice(BALB/e.nu/nu)were used for in vivo transplant tumor model.the experimental animals were randomly divided into five groups to administrated by several dosages of Hano-sized-Fe3 O4-BLTA,and were executed after 12 d.The tumors were collected and photographed.and the tumor tissues were used for differ-ent assays for measuring tumor inhibition.The peritoneal fluid was extracted to isolate the macrophages for cytokines assays.Using irmnunohistochemical staining for vascular endothelial growth factor(VEGF)and CD3 l in tumor to investigate the tumor inhibition rate.Double antibody sandwich ELISA was used to detect the level of cytokine change.Results The mice treated with low dosage(10 μg/d)of nano-sized-Fe3O4-BLTA.the growth inhibifion rate of tumor was 49%,and the levels of VEGF(0.0224±0.0763)and CD31 (57.000 4±6.790)were lower than other treated groups(P<0.01).The high dosage(100μg/d)and me-dium dosage(50μg/d)of nano-sized-Fe3 O4-BLTA groups were significant difference(P<0.01)on the content of cytokines excreted by macrophages.The level of TNF-α(39.4040 ±-1.5590)induced by the low dosage group was higher relatively(P<0.01).Conclusion Nano-sized-Fe3O4-BLTA exerts an inhibiting effect on the growth of human gastric cancer in nude mice.Using nano-sited-Fe3 O4-BLTA,LTA can get more permeability and improve the therapy effect.which will be a new drug on the stomach cancer targeted therapy.
8.Expression of Gas6 in placenta and decidua tissues and its relationship with the pathogenesis of preeclampsia
Hongai SANG ; Yuyan MA ; Xiaodan ZHU ; Linlin WANG ; Mengya HE
Chinese Journal of Obstetrics and Gynecology 2015;(6):441-445
Objective To investigate the expression of growth arrest-specific protein 6 (Gas6) in the placenta and decidua tissues and its relationship with the pathogenesis of preeclampsia. Methods All the patients were recruited in Qilu Hospital of Shangdong University from October 2013 to June 2014. Among them, thirty-two women with early-onset severe preeclampsia who received cesarean section were assigned to the preeclampsia group, and thirty healthy pregnant women who received cesarean section were defined as the control group. Blood glucose, blood lipids, platelet count, D-dimer levels and other clinical indicators of the two groups were detected. Immunohistochemistry of SP was conducted to identify the localization of Gas6 protein in the placenta and decidua tissues. And reverse transcription (RT)-PCR was performed for quantitative analysis of Gas6 RNA expression in placentas. The correlations between placental Gas6 mRNA levels with clinical indicators were analyzed. Results (1) The gestational age at delivery, blood pressure, serum albumin, platelet count and birth weight of fetuses showed statistically significant differences between the two groups(P<0.05). (2) The Gas6 protein expressed in the cytoplasm and nucleus of the syncytiotrophoblasts and decidual cells in the placenta and decidual tissues of the two groups. (3) The Gas6 mRNA expression elevated significantly in the placenta of preeclampsia group (0.60 ± 0.38) when compared to that of the control group (0.34±0.22;P<0.05). (4) The expression of Gas6 mRNA was positively related with body mass index, diastolic blood pressure, systolic blood pressure, free fatty acids and creatinine (P<0.05), while it was negatively associated with serum albumin(P<0.05). Conclusion The high expression of Gas6 in the placenta and decidua tissues may be related to the pathogenesis of severe preeclampsia.
9.Expression of interleukin-37 in placenta and its relationship with the pathogenesis of severe preeclampsia
Xiaodan ZHU ; Yuyan MA ; Hongai SANG ; Linlin WANG ; Mengya HE
Chinese Journal of Obstetrics and Gynecology 2015;(5):341-345
Objective To investigate the expression of interleukin-37 (IL-37) in placenta tissue and its relationship with the pathogenesis of severe preeclampsia. Methods All the patients were recruited in Qilu Hospital of Shangdong University from November 2012 to November 2013. Among them, thirty patients with severe preeclampsia were assigned to the preeclampsia group, and thirty-one healthy pregnant women were assigned to the control group. Immunohistochemistry of SP was used to detect the IL-37 protein expression in placenta tissue of the two groups. The expression level of IL-37 in placenta tissue of the two groups was detected by western blot. Besides, reverse transcription(RT)-PCR was used to detect the expression of IL-37 mRNA. The correlation between the expression of IL-37 mRNA and the delivery gestational age, body mass index(BMI)was analyzed. Results (1) IL-37 were detected in the placenta of both the preeclampsia group and the control group, and the expression site mainly located in the syncytiotrophoblast, with a small amount in cytotrophoblast.(2)The expression levels of IL-37 protein in the preeclampsia group and the control group were 0.59 ± 0.39 and 0.88 ± 0.22, respectively. The IL-37 mRNA levels in the preeclampsia group and the control group were 0.55 ± 0.17 and 1.11 ± 0.21, respectively. Both decreased significantly when compared to the control group (P<0.05). (3) Significant correlation between the expression of IL-37 mRNA and the delivery gestational weeks(r=0.209, P>0.05) was seen neither in the preeclampsia group nor in the control group(r=-0.053, P>0.05). In the severe preeclampsia group, the pregnant women′s BMI had no significant correlation with IL-37 mRNA expression of placenta tissue(r=0.102, P>0.05), neither did the control group(r=-0.115, P>0.05). Conclusion IL-37 expression is significantly lower in severe preeclampsia placenta tissue than that in the normal pregnant women, which may play a protective role in the course of severe preeclampsia.
10.Study on breast-feeding in hepatitis B virus carrier women
Ruili MU ; Yuyan MA ; Hua LI ; Al ET
Chinese Journal of Perinatal Medicine 1998;0(01):-
Objective To explore the possibility of breast feeding in chronic asymptomatic hepatitis B virus (HBV) carriers after immuno prophylaxis of the infants. Methods The infants with asymptomatic HBV carriers mothers were selected by the obstetric department of Qilu Hospital of Shangdong University, Jinan Maternity and Infant Health Institute of Shangdong from Sept 2001 to Oct 2003 prospectively. Umbilical blood HBV deoxyribonucleic acid (HBV DNA) was detected at birth. All infants received 200 IU HBV specific immunoglobin(HBIG)within 12 hours and on 14 days after birth. The hepatitis B recombinant vaccine was given within 24 hours after birth and at 1 and 6 months of age. The way of feeding was chosen by the mothers as they liked. There were 55 infants in breast feeding group and 36 in bottle feeding group. Infants were then followed up at 7 and 12 months of age and tested for hepatitis B surface antigen(HBsAg), hepatitis B surface antibody (anti HBs), hepatitis B e antigen(HBeAg), hepatitis B e antibody(anti HBe) and hepatitis B core antibody(anti HBc) and HBV DNA. Uninfected infants with negative anti HBs were given repeated dose of vaccinations. Results At 7 and 12 months of age, the positive rates of HBV DNA were 9.09%(5/55)and 9.09%(5/55), anti HBs were 85.45%(47/55)and 90.90%(50/55)in breast feeding group respectively;while the positive rates of HBV DNA were 8.33%(3/36)and 8.33%(3/36), anti HBs were 86.11%(31/36)and 91.67%(33/36)in bottle feeding group respectively. No significant differences was shown in positive rates of HBV DNA and anti HBs between these two groups. Conclusions With appropriate immunoprophylaxis, including hepatitis B immune globulin and hepatitis B vaccine, HBV carriers can breast feed their babies.