1.The detection of peripheral blood Foxp3+ regulatory T cell in patients with ovarian cancer
Yan SUN ; Zhuoman LI ; Shujuan ZHOU ; Yuqiang JI
Chinese Journal of Postgraduates of Medicine 2012;(36):26-28
Objective To investigate the changes of peripheral blood Foxp3+ regulatory T cell (Treg cell) in patients with ovarian cancer (OC).Methods In 46 patients with OC and 46 normal controls,the percentage of peripheral blood CD4+ Foxp3+ Treg cell was assessed by flow cytometry and Foxp3 mRNA level was detected by real-time quantitative reverse transcription polymerase chain reaction.The level of plasma.transforming growth factor β1 (TGF-ββ 1) was measured by enzyme linked immunosorbent assay.Results The percentages of CD4+ Foxp3+ Treg cell,Foxp3 mRNA and level of plasma TGF-β1 in patients with OC were statistically higher than those in normal controls [(11.42 ± 2.67)% vs.(8.94 ± 1.98)%,0.59 ± 0.21 vs.0.37 ±0.14,(35 580 ±7274) ng/L vs.(28 610 ±5631) ng/L,P=0.0000].Conclusion The number and/or function of CD4+ Foxp3+ Treg cell in peripheral blood of patients with OC are abnormal,CD4+ Foxp3+Treg cell may participate in the occurrence of OC.
2.Short-term efficacy and factors of specific immunotherapy on patients with allergic rhinitis.
Congli GENG ; Xiaopei YUAN ; Zhimin XING ; Lisheng YU ; Min WANG ; Yuqiang LIN ; Yan LIU ; Gai ZHANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(21):1857-1863
OBJECTIVE:
To evaluate the short-term efficacy and investigate the factors of specific immunotherapy (SIT) efficacy of allergic rhinitis.
METHOD:
Fifty-seven patients with allergic rhinitis to dermatophagoides pteronysinus were included to receive SIT. Pair t-test was used to compare the symptom scores, visual analogue scores (VAS) and medication scores in patients before SIT and into maintain treatment statement to evaluate the clinical efficacy. T-test and Spearman correlation analysis were used to analyze the correlation between gender, age,reaction condition of skin prick test (SPT) and serum sIgE and the efficacy of SIT.
RESULT:
SIT was able to significantly reduce the symptom scores, VAS and medication scores. But the correlation between gender, age, SPT, and sIgE and theefficacy of SIT were not significant.
CONCLUSION
SIT is effective in the short-term treatment of AR. Further research is needed to investigate the factors that impact the efficacy of SIT.
Animals
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Humans
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Immunoglobulin E
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blood
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Immunotherapy
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Pyroglyphidae
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Rhinitis, Allergic
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therapy
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Skin Tests
3.Design of the Graded Diagnosis Information System Based on the Provincial Health Information Platform
Tao JIANG ; Ye XU ; Yi LOU ; Jianhua CHEN ; Yuqiang SHEN ; Chunrong GAO ; Jianchong YU ; Yan LI ; Rong NI
Journal of Medical Informatics 2015;(10):19-24
〔Abstract〕 The paper explains the construction background and objective of the graded diagnosis information system based on the provincial health information platform in Zhejiang province and introduces the system framework and function in detail .This system pro-vides uniform referral information service for medical institutions at all levels all over the province and realizes the exchange and sharing of dual referral records between basic health service institutions and big hospitals .
4.Effect of acute normovolemic hemodilution on apoptosis in hippocampal cells induced by global cerebral ischemia-reperfusion in rats
Ziyu ZHAO ; Rongliang XUE ; Jianrui Lü ; Jing GAO ; Gang WU ; Wei LI ; Li XUE ; Xiaoming LEI ; Yuqiang YAN
Chinese Journal of Anesthesiology 2012;32(2):201-203
ObjectiveTo investigate the effect of acute normovolemic hemodilution (ANH) on the apoptosis in hippocampal cells induced by global cerebral ischemia-reperfusion (I/R) in rats.Methods Thirty-six healthy 50-60 day old male SD rats weighing 280-320 g were randomly divided into 3 groups ( n =12 each):group sham operation (group S); group global cerebral I/R (group I/R) and group ANH.Global cerebral I/R was produced by 4-vessel technique described by Pulsinelli et al.in groups I/R and ANH.ANH was carried out at 24 h after cauterization of bilateral vertebral arteries,before occlusion of bilateral carotid arteries.Blood was withdrawn from femoral artery until Hct was reduced to 30% and equal volume of hydroxyethyl starch 130/0.4 sodium chloride was infused into femoral vein simultaneously.Bilateral carotid arteries were blocked for 5 min at 10 min after ANH.The rats were sacrificed at 24 h of reperfusion and their hippocampi were isolated.Apoptosis was detected by flow cytometry.The expression of Apaf-1 mRNA and caspase-3 mRNA was determined by RT-PCR.Results Global cerebral I/R significantly increased apoptosis index and up-regulated Apaf-1 mRNA and caspase-3 mRNA expression in group I/R as compared with group S.ANH significantly attenuated apoptosis and down-regulated Apaf-1 mRNA and caspase-3 mRNA expression in group ANH compared with group I/R.ConclusionANH can reduce hippocampal cell apoptosis induced by cerebral I/R through down-regulation of Apaf-1 and caspase-3 expression in hippocampus.
5.Effect of Helicobacter pylori on the function of peripheral blood monocyte-derived dendritic cells in gastric cancer patients
Qiaozhen LI ; Yuqiang CHEN ; Jianghua YAN ; Yuan DING ; Yongjun WANG ; Shengyu WANG ; Yanhua YE ; Yingyi XU ; Huixiang HE
Chinese Journal of Clinical Oncology 2013;(15):902-906
Objective: This study aimed to compare and analyze the functional differences between peripheral blood mono-cyte-derived dendritic cells (DCs) of Helicobacter pylori-positive and H. pylori-negative patients with gastric cancer. Methods:H. py-lori infection was detected in 84 patients with gastric cancer in our hospital from January 2011 to October 2012 by the 14C-urea breath test. DCs were generated from monocytes isolated by an adherent method from the two groups of patients and cultured in the presence of rhIL-4, rhGM-CSF, and rhTNF-α. Furthermore, the expression of surface marker molecules was determined by fluorescence-activat-ed cell sorting analysis. The cytotoxicity of DCs pulsed T cells against gastric carcinoma cell was assessed by the lactate dehydroge-nase-releasing assay. The secretion of IL-12 and IFN-γin the supernatant was determined by enzyme-linked immunosorbent assay. Re-sults:No difference was observed in the morphological change of the maturation process. The mean expression of CD1a, CD80, CD83, CD86, and HLA-DR molecules in DCs of H. pylori-infected patients was higher than that in DCs of H. pylori-negative group, and the differences were statistically significant except for CD1a and HLA-DR. The cytotoxicity activities, IL-12 release, and IFN-γrelease in the H. pylori-positive group were significantly higher than those in the H. pylori-negative group (P<0.05). Conclusion:H. pylori infec-tion has no effect on the morphological change of the maturation process of monocyte-derived DCs. These data clearly demonstrate that monocyte-derived DCs of H. pylori-infected patients with gastric cancer can induce stronger maturation and activation than those of H. pylori-negative patients.
6.Genetic analysis of two pediatric patients with Beckwith-Wiedemann syndrome.
Xiaoying LI ; Yuqiang LYU ; Min GAO ; Xiuli YAN ; Chen MENG ; Kaihui ZHANG ; Yi LIU ; Zhongtao GAI
Chinese Journal of Medical Genetics 2017;34(6):831-834
OBJECTIVETo explore the genetic cause for two children with omphalocele.
METHODSThe patients were examined, and the medical history of their families was collected. Methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) was performed to detect potential mutation in the patients.
RESULTSLoss of methylation of imprinting center 2 (IC2) at the 11p15.5 region of the maternal chromosome was detected in both children.
CONCLUSIONThe two patients were diagnosed with Beckwith-Wiedemann syndrome by MS-MLPA. The loss of methylation of IC2 probably underlies the disease in both patients.
Beckwith-Wiedemann Syndrome ; genetics ; Chromosomes, Human, Pair 11 ; DNA Methylation ; Female ; Genomic Imprinting ; Humans ; Infant ; Infant, Newborn ; Male ; Multiplex Polymerase Chain Reaction
7.Inhibitory effect of NRP-1 b1/b2 monoclonal antibody on invasion and migration of gastric cancer cell line BGC-823 and its mechanism
Yuan DING ; Peng GAO ; Juan ZHOU ; Yujuan DAI ; Yuqiang CHEN ; Jianghua YAN ; Lijing CHEN
Cancer Research and Clinic 2017;29(11):726-730
Objective To observe the effect of anti NRP-1 b1/b2 monoclonal antibody (NRP-1mAb) on migration and invasion of gastric cancer cell line BGC-823, and to explore the possible mechanism. Methods NRP-1mAb was prepared in the laboratory, and the purity of antibody was detected by flow cytometry. The different concentrations of NRP-1mAb were added into the culture medium of gastric cancer cell line BGC-823. The migration and invasion of cells after 12 hours was observed by using Transwell method. The phosphorylation of related signal proteins after NRP-1mAb was detected by Western blot analysis. Results When NRP-1mAb prepared by patented technology had the effects on BGC-823 cells after 12 hours, the number of migration and invasion of BGC-823 cells was reduced. The number of cells through the basement membrane in the control group (blank) and the administration group (NRP-1mAb 25, 100, 400 μg / ml) were 167 ± 9, 138 ± 5, 98 ± 5, 36 ± 4, respectively (F = 22.6, P< 0.01); the number of cells through the filtration membrane were 231 ± 40,224 ± 19,176 ± 26,124 ± 34,respectively(F=26.63,P<0.01). There were statistically significant differences between the administered group and the control group at 100 and 400 μg/ml (all P< 0.001). High concentration of NRP-1mAb (100 μg/ml) decreased the phosphorylation level of Akt after 10 minutes' function on gastric cancer cells. However, it was difficult to detect phosphorylated Akt after 30 minutes. Conclusion NRP-1mAb may inhibit the migration and invasion of gastric cancer cell line BGC-823 by decreasing the phosphorylation of Akt, which is positively correlated with the concentration.
8.Cloning, expression and functional analysis of the duck Toll-like receptor 5 (TLR5) gene.
Yuqiang CHENG ; Yingjie SUN ; Hengan WANG ; Shuduan SHI ; Yaxian YAN ; Jing LI ; Chan DING ; Jianhe SUN
Journal of Veterinary Science 2015;16(1):37-46
Toll-like receptor 5 (TLR5) is responsible for the recognition of bacterial flagellin in vertebrates. In the present study, the first TLR5 gene in duck was cloned. The open reading frame (ORF) of duck TLR5 (dTLR5) cDNA is 2580 bp and encodes a polypeptide of 859 amino acids. We also cloned partial sequences of myeloid differentiation factor 88, 2'-5'-oligoadenylate synthetase (OAS), and myxovirus resistance (Mx) genes from duck. dTLR5 mRNA was highly expressed in the bursa of Fabricius, spleen, trachea, lung, jejunum, rectum, and skin; moderately expressed in the muscular and glandular tissues, duodenum, ileum, caecum, and pancreas; and minimally expressed in the heart, liver, kidney, and muscle. DF-1 or HeLa cells transfected with DNA constructs encoding dTLR5 can activate NF-kappaB leading to the activation of interleukin-6 (IL-6) promoter. When we challenged ducks with a Herts33 Newcastle disease virus (NDV), mRNA transcription of the antiviral molecules Mx, Double stranded RNA activated protein kinase (PKR), and OAS was up-regulated in the liver, lung, and spleen 1 and 2 days post-inoculation.
2',5'-Oligoadenylate Synthetase/genetics/metabolism
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Animals
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Cell Line
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*Cloning, Molecular
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Ducks
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Gene Expression Regulation/*physiology
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Humans
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Immunity, Innate
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Myeloid Differentiation Factor 88/genetics/metabolism
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Myxovirus Resistance Proteins/genetics/metabolism
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Newcastle Disease/metabolism
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Newcastle disease virus/classification
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RNA, Messenger/genetics/metabolism
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Species Specificity
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Toll-Like Receptor 5/genetics/*metabolism
9.CLPB gene mutations analysis in a case of type 3-methylglutaconic aciduria.
Rui DONG ; Kaihui ZHANG ; Yan HUANG ; Yue JIANG ; Yuqiang LYU ; Min GAO ; Zhongtao GAI ; Yi LIU
Chinese Journal of Medical Genetics 2020;37(9):1014-1017
OBJECTIVE:
To validate the diagnosis of an infant with elevated urine 3-methylglutaconic acid (3-MGA) through sequencing of the CLPB gene.
METHODS:
Genomic DNA of the infant was sequenced by next generation sequencing (NGS), and candidate pathogenic variants were verified by Sanger sequencing and bioinformatics analysis.
RESULTS:
NGS has revealed that the infant has carried a c.1085G>A (p.Arg362Gln) and a c.1700A>C (p.Tyr567Ser) of the CLPB gene, which were respectively inherited from her parents. Among these, c.1085G>A (p.Arg362Gln) is a novel variant which was unreported previously, and based on the ACMG guidelines, it was predicted to be a possible pathogenic variant.
CONCLUSION
Compound heterozygous variants c.1085G>A (p.Arg362Gln) and c.1700A>C (p.Tyr567Ser) of the CLPB gene probably underlay the disease in this infant. Genetic testing has confirmed the diagnosis.
10.Clinical and genetic analysis of an infant with 3-methylglutaconic aciduria type VII.
Kaihui ZHANG ; Yan HUANG ; Yuqiang LYU ; Min GAO ; Jian MA ; Zhongtao GAI ; Yi LIU
Chinese Journal of Medical Genetics 2020;37(4):423-426
OBJECTIVE:
To analyze the clinical and genetic characteristics of an infant girl featuring comprehensive developmental backwardness.
METHODS:
The patient was subjected to clinical examination, gas chromatography mass spectrometry and next-generation sequencing (NGS).
RESULTS:
The child was insensitive to sound, could not turn over, raise head, laugh or recognize his mother. Laboratory tests were all normal, but metabolic analysis suggested 3-methylglutaconic aciduria due to elevated 3-methylglutaconic acid and 3-methylglutaric acid. NGS has detected two compound heterozygous CLPB variants in the child, namely c.1085G>A and c.1700A>C, which were respectively inherited from her father and mother. Bioinformatic analysis predicted both variants to be pathogenic. The patient was diagnosed with 3-methylglutaconic aciduria type VII (MGCA7).
CONCLUSION
The MGCA7 in the child was probably caused by CLPB gene variants. NGS has provided a powerful diagnostic tool for this rare disorder.
Endopeptidase Clp
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genetics
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Female
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Genetic Testing
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High-Throughput Nucleotide Sequencing
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Humans
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Infant
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Metabolism, Inborn Errors
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genetics