1.Predictors of Outcome in Drowning
Haifeng LIU ; Zhongqiu LU ; Wujian PENG
Journal of Medical Research 2006;0(05):-
5 minutes and the emergency room documentation of Glasgow Coma Scale of £4,arterial pH of ≤7.0 all predicted bad outcome,with a statistical significance(P
2.Aberrant expression of circulating microRNAs in patients with systemic lupus erythematosus
Honglei WANG ; Wujian PENG ; Xin OUYANG ; Yong DAI
Chinese Journal of Rheumatology 2012;16(8):549-552
Objective To investigate a panel of differentially expressed circulating microRNAs (miRNAs) as potential biomarkers in patients with systemic lupus erythematosus (SLE).Methods A miRNA array was performed on plasma of 10 healthy controls and 10 SLE patients.To confirm the results of microarray,the selected 7 miRNAs were examined by real-time quantitative PCR (RT-qPCR).Independent sample's t-test was used for statistical analysis between the two groups.Results A total of 51 circulating miRNAs were signi-ficandy differentially expressed between SLE patients and healthy controls (19 up-regulated miRNAs and 32 down-regulated miRNAs).The findings of RT-qPCR on 7 miRNAs (miR-126,miR-21,miR-223 and miR-451 of upregulation and miR-125a-3p,miR-146a and miR-155 of down-regulation) were consistent with the data obtained from the array.Conclusion There is aspecific circulating miRNAs expression profile in SLE,and these aberrantly expressed miRNAs might have great potential to serve as novel,noninvasive biomarkers of SLE.
3.Construction and identification of human tissue kallikrein gene eukaryotic expressing vector.
Yong, DAI ; Wujian, PENG ; Tiyuan, LI ; Hong, DU ; Wenxue, SUN ; Deheng, CHEN ; Zhuojia, XU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(2):164-6
To clone and sequence the human tissue kallikrein gene of Chinese, and to construct eukaryotic expression recombinant of KK, total RNA was extracted from human pancreas and human tissue kallikrein gene cDNA was amplified by PCR after reverse-transcription by using Oligo(dT) primer. The original kallikrein cDNA was recovered and filled with Klenow enzyme and inserted into KS plasmid. After restriction endonuclease digestion, KK cDNA was sequenced by ABI377 analyzer. Then the KK gene was amplified from pBluescript KSKK and inserted into pcDNA3. A sequence comparison showed that the cloned kallikrein gene was only one nucleotide different from that reported in the Genbank. The coding amino acid was Asp in the Genbank gene, while the coding amino acid of Chinese kallikrein gene was Asn. The KK cDNA fragment was inserted into the eukaryotic expression vector pcDNA3. The cloned kallikrein gene and the pcDNA3KK can be used for further study in gene therapy.. .
4.Anti-miR-145 promotes human airway smooth muscle cell proliferation and osteopontin synthesis in vitro.
Peifen CHEN ; Zhihui QIU ; Guohua HUANG ; Xiangmei ZHANG ; Wujian PENG ; Hui CENG ; Wenyan LAI
Journal of Southern Medical University 2015;35(7):1073-1075
OBJECTIVETo investigate the effect of anti-miR-145 on human airway smooth muscle cell (HASMC) proliferation and osteopontin systhesis in vitro and explore the mechanisms.
METHODSHASMCs were treated with 10-100 nmol/L anti-miR-145, and the cell proliferation and apoptosis were investigated using a CCK-8 assay and flow cytometry, respectively. The changes in osteopontin synthesis after the treatment was quantified with Western blotting.
RESULTSTreatment with 10 and 50 nmol/L anti-miR-145 significantly promoted the proliferation and osteopontin synthesis in HASMCs (P<0.05 or <0.01), and 50 nmol/L anti-miR-145 obviously inhibited the cell apoptosis (P<0.01).
CONCLUSIONAnti-miR-145 promotes HASMC proliferation and osteopontin synthesis and inhibits HASMC apoptosis in vitro, indicating the important role of anti-miR-145 in the pathogenesis of airway remodeling.
Airway Remodeling ; Apoptosis ; Cell Proliferation ; Cells, Cultured ; Humans ; MicroRNAs ; antagonists & inhibitors ; Myocytes, Smooth Muscle ; drug effects ; Osteopontin ; biosynthesis ; Respiratory System ; cytology
5.Construction and Identification of Human Tissue Kallikrein Gene Eukaryotic Expressing Vector
Yong DAI ; Wujian PENG ; Tiyuan LI ; Hong DU ; Wenxue SUN ; Deheng CHEN ; Zhuojia XU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(2):164-166
To clone and sequence the human tissue kallikrein gene of Chinese, and to construct eukaryotic expression recombinant of KK, total RNA was extracted from human pancreas and human tissue kallikrein gene cDNA was amplified by PCR after reverse-transcription by using Oligo(dT)primer. The original kallikrein cDNA was recovered and filled with Klenow enzyme and inserted into KS plasmid. After restriction endonuclease digestion, KK cDNA was sequenced by ABI 377 analyzer.Then the KKgene was amplified from pBluescript KSKK and inserted into pcDNA3. A sequence comparison showed that the cloned kallikrein gene was only one nucleotide different from that reported in the Genbank. The coding amino acid was Asp in the Genbank gene, while the coding amino acid of Chinese kallikrein gene was Asn. The KK cDNA fragment was inserted into the eukaryotic expression vector pcDNA3. The cloned kallikrein gene and the pcDNA3KK can be used for further study in gene therapy...
6.Detection of pathogenic variants in four patients with globozoospermia.
Zhenzhen TANG ; Qingqin LI ; Guoyong CHEN ; Wujian HUANG ; Yulin WANG ; Yu YE ; Peng XIE ; Fenghua LAN ; Duo ZHANG
Chinese Journal of Medical Genetics 2023;40(3):301-307
OBJECTIVE:
To explore the genetic basis for 4 patients with globozoospermia.
METHODS:
Semen and blood samples were collected from the patients for the determination of sperm concentration, viability, survival rate, morphology and acrosome antigen CD46. Meanwhile, DNA was extracted for whole exome sequencing (WES), and candidate variants were validated by Sanger sequencing.
RESULTS:
All of the four patients were found to harbor variants of the DPY19L2 gene. Patients 1 ~ 3 had homozygous deletions of the DPY19L2 gene. Sanger sequencing confirmed that the DPY19L2 gene in patient 3 was disrupted at a recombination breakpoint area BP2, resulting in nonallelic homologous recombination and complete deletion of the DPY19L2 gene. Patients 2 and 3 respectively harbored novel homozygous deletions of exons 2 ~ 22 and exons 14 ~ 15. Patient 4 harbored heterozygous deletion of the DPY19L2 gene, in addition with a rare homozygous deletion of the 3' UTR region.
CONCLUSION
DPY19L2 gene variants probably underlay the globozoospermia in the four patients, which has fit an autosomal recessive pattern of inheritance and the characteristics of genomic diseases.
Male
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Humans
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Teratozoospermia/genetics*
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Homozygote
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Semen
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Sequence Deletion
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3' Untranslated Regions
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Membrane Proteins