1.Cloning of Wnt Fz5 encoding gene of Schistosoma japonicum and its differential expression during different developmental stages
Lin HAN ; Chunxiu YUAN ; Xingang FENG
Chinese Journal of Schistosomiasis Control 1991;0(05):-
Objective To clone full length gene sequence containing open reading frame (ORF) of Schistosoma japonicum SJCHGC08304, analyse its category encoding Wnt protein, and to understand the mRNA expression dynamics of the gene during different developmental stages. Methods Based on a EST identified in Genbank, the full length gene of SJCHGC08304 was cloned with RACE technique from 7 d hepatic schistosomula and 42 d adult worms, and its complete ORF was analysed by bioinformatics tools. The expression of the gene during different developmental stages was analysed by using Real-time fluorescent quantitative PCR technique. Results A new gene was obtained, containing a complete ORF with 2 604 nucleotides, and encoding 867 amino acid with 98.264 kD of molecular mass. Real-time fluorescent quantitative PCR showed that the mRNA level of this gene was the highest in the 18 d schistosomula, followed by 14 d schistosomula, 42 d male worms, 32 d adult worms, egg, 23 d adult worms, 27 d adult worms, respectively, and there were no expression of the gene in 42 d female worms. Conclusions The gene has a typical characteristics of Wnt frizzled family proteins, the similarity is best to Xenopus laevis. By comparison analysis to speculate as Fz5 gene, we denominate this gene as "sjFz5" (GenBank accession No. EU370926). SjFz5 has differential expressions during different developmental stages.
2.Biomechanical changes of proximal femur for posteriomedial fractures:a finite element analysis
Mengquan HUANG ; Bin YU ; Chunxiu LIN
Orthopedic Journal of China 2006;0(04):-
[Objective]To research the biomechanical influence of posteriomedial fractures on proximal femur.[Method]Three dimensional finite element models of intact and osteotomied proximal femurs were established from computerized tomographic(CT)scanning images,and finite element analysis was undertaken.[Result]The maximum equivalent stress was located at the anteriomedial of the defection of the proximal femur.The stress of femoral neck,as well as the medial and lateral femoral cortex was not significantly changed after isolated lesser trochanteric fracture.However,with half of the medial cortex involved,the stress of the medial and lateral femur increased by 47% and 12%,respectively.If the entire medial cortex was involved,the stress of medial and lateral femur increased by 247% and 66%,respectively.[Conclusion]Different types of posteriomedial fragments have different effects on the stress distribution and quantity of proximal femur.When treating intertrochanteric fractures using dynamical hip screw,the fragments should be differently treated based on its types considering for biomechanical effects.
3.Screening the target genes of Schistosoma japonicum related to the naturely resistance of Microtus fortis
Yi SUN ; Huan SUN ; Renchu JIA ; Jinming LIU ; Chunxiu YUAN ; Yaojun SHI ; Ke LU ; Hao LI ; Yamei JIN ; Jiaojiao LIN
Chinese Journal of Schistosomiasis Control 1989;0(01):-
Objective To look for the genes of Schistosoma japonicum related to the Schistosoma-resistance of Microtus fortis.Methods The fresh sera of Microtus fortis were used to screen a T7 phage display cDNA library from worms of Schistosoma japonicum established in our lab.The positive clones were sequenced and functionally analysed through bioinformatics.Results The specific phages binding to the sera of Microtus fortis were enriched 857-fold after three rounds of biopanning,and 58 positive clones picked at random were sequenced and 10 ESTs were obtained.BLASTn results showed that 7 ESTs had 99%-100% similarity to the genes of Shistosoma japonicum reported in GenBank and 1 EST had 82% similarity to a zinc finger protein encoden gene from Pan troglodytes.The results of these ESTs function prediction indicated most of them were involved in the regulation of gene expresion of Schistosoma japonicum.Conclusions Several target genes of Schistosoma japonicum related to the Schistosoma-resistance of Microtus fortis are obtained and those would lay foundation to expatiate the native resistance mechnism of Microtus fortis to Schistosoma japonicum.
4.Construction of Phage Display cDNA Library from Adult Worms of Schistosoma japonicum
Yi SUN ; Renchu JIA ; Jinming LIU ; Chunxiu YUAN ; Yaojun SHI ; Ke LU ; Zhiqiang FU ; Huan SUN ; Youmin CAI ; Jiaojiao LIN
Chinese Journal of Parasitology and Parasitic Diseases 1997;0(05):-
Objective To screen protective antigen genes and construct the T7 phage display library from adult worms of Schistosoma japonicum.Methods Total RNA was extracted from adult worms of S.japonicum by Trizol reagent and mRNA was isolated from the total RNA.The ds cDNA was synthesized by reverse transcription using random primer.Directional EcoRⅠ/HindⅢ linkers were ligated into the ends of ds cDNA and the ds cDNA was digested with EcoRⅠand HindⅢ,which resulted in ds cDNA with EcoRⅠand HindⅢ adhering ends.The digested ds cDNA fragments longer than 300 bp in length were fractionated and ligated into T7 Select 10-3b vector.After packaging in vitro,the T7 Select 10-3b vector was transformed into BLT5403 to construct the T7 phage display cDNA library.Plaque assay and PCR were used to evaluate the library.Seven known objective genes of S.japonicum were screened by PCR to detect the representation of the library.Result Primary library capacity was 4.98?106 pfu,and the titer of amplified library was 3.85?1011 pfu/mL.The PCR identification result of 96 clones picked at random showed that recombination rate was 93.8%,in which 95.6% inserted cDNA fragments were longer than 300 bp in length.All the seven known objective genes of S.japonicum were amplified from the library.Conclusion The T7 phage display library from adult worms of Schistosoma japonicum was constructed.
5.Construction of a T7 phage display cDNA library from lung of Microtus fortis
Renchu JIA ; Yi SUN ; Jinming LIU ; Chunxiu YUAN ; Zhiqiang FU ; Yaojun SHI ; Ke LU ; Huan SUN ; Hao LI ; Youmin CAI ; Jiaojiao LIN
Chinese Journal of Schistosomiasis Control 1989;0(04):-
Objective To construct a T7 phage display cDNA library from the lung of Microtus fortis for further screening the schistosomiasis-resistence-related genes of Microtus fortis. Methods mRNA was isolated from total RNA extracted from the lungs of Microtus fortis by TRIzol reagent, and was used to synthesize double strain cDNA by the reverse transcription. Then the double strain cDNA was given with EcoRⅠ and Hind Ⅲ adhering ends by ligation with the directional EcoRⅠ/Hind Ⅲ linkers and digestion with EcoRⅠ and Hind Ⅲ. The double strain cDNA fragments longer than 300 bp in length were fractionated by the Mini Column, and ligated into the T7 Select 10-3b vector with EcoRⅠ and Hind Ⅲ adhering ends. After packaging in vitro, the recombinant T7 Select 10-3b was transformed into BLT5403 to construct a T7 phage display cDNA library. Results The library constructed here contained 1.5?106 clones and the titer of the amplied library was 1.1?1012 pfu/ml. The PCR identification results of 100 clones picked at random showed that 91% clones were recombinant and 90% of recombinant clones contained cDNA fragments longer than 300 bp in length. Conclusion A T7 phage display cDNA library from the lung of Microtus fortis is successfully constructed.
6.CT and MR imaging diagnosis of intracranial teratomas
Jingwen WU ; Xianlong WANG ; Yanhong LIN ; Lyujin FENG ; Chunxiu JIANG ; Zhibo WEN
Chinese Journal of Neuromedicine 2015;14(9):890-893
Objective To analyze the CT and MR imaging features of intracranial teratomas to improve the diagnostic accuracy.Methods Twenty patients with intracranial teratomas,admitted to and performed surgery in our hospital from January 2010 and January 2014,were chosen;the teratoma was confirmed by histopathology.The CT and MR imaging features,clinical and pathology materials of these patients were retrospectively analyzed.Results Twelve immature teratomas,7 mature teratomas and one teratoma with malignant transformation were noted;18 patients were in the central line area and 2 were not.In the 9 patients performed CT scan,7 showed heterogeneous mass;peritumoral calcification was more common than intratumoral calcification,and it turned out to be round with diameter less than 1 cm,while intratumoral calcification was multifocally strip and patchy.In the 17 patients performed MR imaging,14 showed heterogeneous signal and fatty signal was detected in 3;enhanced MR imaging showed that 6 presented nodular enhancement,3 presented multilocular enhancement markedly,patchy enhancement showed in 2,and one showed marked enhancement in mural nodule and cystic wall.In 8 patients performed diffusion-weighted imaging,7 displayed hypointense to isointense and one demonstrated isointense to hyperintense.Conclusions Intracranial teratoma has some characteristic imaging features,so by combining clinical materials,it should be considered when fatty component is detected in a heterogeneous intensity tumor with multiple cystic change,calcification and a hypointense to isointense signal on DWI;however,pathology is needed to make a definite diagnosis.
7.Clinical study on intervention of spleen-restoring decoction integrating with dormancy hygiene education on subhealthy insomnia of deficiency of both heart and spleen pattern.
Ren YE ; Zhengzhong YUAN ; Chunxiu DAI ; Wei LI ; Xiuhua SONG ; Zhiqing CHENG ; Wanhua HU ; Yan LIN ; Xiaoyun WANG ; Shuchen SUN ; Jincai HE
China Journal of Chinese Materia Medica 2011;36(16):2285-2289
OBJECTIVETo appraise the clinical efficacy, safety and compliance of the intervention of spleen-restoring decoction combined with dormancy hygiene education and the intervention of spleen-restoring decoction alone on sub-healthy insomnia of deficiency of both the heart and spleen pattern.
METHODStudy design took multi-centers, blind and randomized control trial, 107 participants with sub-healthy insomnia of deficiency of both the heart and spleen pattern were assigned to A group (52 cases) which was treated with the intervention of spleen-restoring decoction combined with dormancy hygiene education and B group (55 cases) which was treated with the intervention of spleen-restoring decoction single, compared by efficacy, PSQI score, CGI score, WHOQOL-BREF score and security.
RESULTThe efficacy of two group was 79.58%. There was no significant different between them. The PSQI scores before treatment was (11.80 +/- 2.08) and which afer treatment was (6.78 +/- 2.84) of A group. The PSQI scores before treatment was (11.61 +/- 2.00) and which afer treatment was (6.73 +/- 2.27) of B group. There was significant difference in PSQI scores both A group and B group after treatment (P < 0.01); the results of CGI score and WHOQOL-BREF score before and after measurement showed the same as PSQI. There were no significant difference between two groups in all scores after treatment and there was no interaction between time pots and treatment factors . Withdrawal reaction analysis: comparing CGI after withdraw 2 weeks and at the end of treatment course, there was no significant difference between two groups. The same result was in comparison among groups.
CONCLUSIONBoth the intervention of spleen-restoring decoction integrating with dormancy hygiene education and spleen-restoring decoction had obvious clinical efficacy on treating subhealthy insomnia of deficiency of both the heart and spleen pattern, and had high compliance and safety. The intervention of spleen-restoring decoction integrating with dormancy hygiene education showed no better clinical efficacy than spleen-restoring decoction did.
Adult ; Female ; Health Education ; Humans ; Hygiene ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Sleep Initiation and Maintenance Disorders ; drug therapy ; physiopathology ; Splenic Diseases ; drug therapy
8.Genetic analysis of 10 children with cerebral palsy.
Qingwen ZHU ; Yufei NI ; Jing WANG ; Honggang YIN ; Qin ZHANG ; Wenjun BIAN ; Lingli ZHANG ; Mengsi LIN ; Jiangyue LIU ; Jun ZHOU ; Chunxiu SHA ; Xiang ZHOU
Chinese Journal of Medical Genetics 2019;36(3):229-233
OBJECTIVE:
To explore the genetic basis of cerebral palsy (CP).
METHODS:
A pair of twins with cerebral palsy and different phenotypes were subjected to whole genome sequencing, and other 8 children with CP were subjected to whole exome sequencing. Genetic variations were screened by a self-designed filtration process in order to explore the CP-related biological pathways and genes.
RESULTS:
Three biological pathways related to CP were identified, which included axon guiding, transmission across chemical synapses and protein-protein interactions at synapses, and 25 susceptibility genes for CP were identified.
CONCLUSION
The molecular mechanism of CP has been explored, which may provide clues for development of new treatment for CP.
Cerebral Palsy
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genetics
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Child
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Genetic Testing
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Humans
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Phenotype
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Whole Exome Sequencing
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Whole Genome Sequencing
9.Screening of T7 phage-display cDNA library from liver of Microtus fortis with extracts of schistosomulum and characterization of the positive clones.
Renchu JIA ; Yi SUN ; Jinming LIU ; Zhiqiang FU ; Chunxiu YUAN ; Yaojun SHI ; Ke LU ; Huan SUN ; Hao LI ; Yamei JIN ; Jiaojiao LIN
Chinese Journal of Biotechnology 2008;24(5):733-739
Microtus fortis is naturally resisitent to Schistosoma japonicum. In order to find schistosome-resistence-related genes of Microtus fortis, a T7 phage-display cDNA library from liver of Microtus fortis was screened with the soluble lysate of schistosomula. The specific phages were enriched 375-fold after 3 rounds of biopanning. Ninety-two positive clones picked at random were sequenced and 19 ESTs including 6 unreported genes were obtained. Compared with the negative phage clone control, five positive clones, No.4 (GenBank Accession No.: EW968294), No.13 (GenBank Accession No.: EW968303), No.14 (GenBank Accession No.: EW968304), No.15 (GenBank Accession No.: EW968305) and No.18 (GenBank Accession No.: EW968308) could induce significantly higher schistosomula mortality rate when co-cultivated with schistosomula. According to the function analysis and the shistosomula-killing effect in vitro, the genes encoding CASP8 and FADD-like apoptosis regulator isoform protein, alpha-2-HS-glycoprotein, M4 protein, R3H domain (binds single-stranded nucleic acids) isoform 2 and 3 previously unreported proteins (No.14, No.15 and No.18) obtained here, were schistosomiasis-resistence-related genes of Microtus fortis.
Animals
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Arvicolinae
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genetics
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parasitology
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Bacteriophage T7
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genetics
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Cloning, Molecular
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Expressed Sequence Tags
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Gene Library
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Genes, Helminth
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genetics
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Immunity, Innate
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genetics
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Larva
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genetics
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growth & development
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Liver
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chemistry
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Schistosoma japonicum
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genetics
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growth & development
10. Prevalence and risk factors of nonalcoholic fatty liver disease in patients with chronic hepatitis B receiving antiviral therapy
Hui GAO ; Zhe KUANG ; Chunxiu ZHONG ; Xieer LIANG ; Rong FAN ; Kaifeng WANG ; Weiyin LIN ; Jinlin HOU ; Jian SUN
Chinese Journal of Hepatology 2019;27(5):347-351
Objective:
To investigate the prevalence and risk factors of non-alcoholic fatty liver disease(NAFLD) in patients with chronic hepatitis B(CHB) receiving antiviral treatment.
Methods:
The cross-sectional study included 3 477 cases with CHB who received antiviral therapy. The prevalence of NAFLD was investigated, and then the risk factors were screened and analyzed by stepwise regression method in CHB patients with NAFLD as the dependent variable and the related influencing factors as independent variables.
Results:
The prevalence of NAFLD was 24.1% in CHB patients who received antiviral therapy. After adjusting for age and gender, central obesity (