1.The antiinflammatory effects of an adenosine
Chinese Pharmacological Bulletin 1998;0(S1):-
Adenosine is an endogenous purine uncleoside released by cells as part of the normal metablic mechinary. During inflammation, massive ATP degradation increases the local adenosine concentration to the micromolar range, at the range, adenosine extert potent antiinflammatory rale. In vivo or in vitro experiments, the addition exogenious adenosine, its analogues and inhibition of its degradation attenuate injury of animal models of inflammation. Antiinflammatory mechinasms involve in;(1)Adenosine inhibites neutrophil function in vitro, including chemotaxiz, adhesion, phogocytosis, and oxygen radical generation. (2) Decrease the expression of collagenase, and reduce the amount of collagenase. (3)Blocking neutrophil adhesion to the endothelium mediated by L-selectin and ftrEategrin. (4)inhibition activated humanmonocytes and macrophage secreting cytokins. (5) Adenosine enhances IL-10 secretion by human monocytes. (6)inhibition of immune response and so on. Relation with nonsteroidal antiinflammatory drugs (NSALDs) includes:(1)MTX and SASP inhibit the activity of 5-aminoimidazole-4-carboxam-ide ribonucleotide (AICAR) transformylase resulting in increased local adenosine concentraton. (2) Azathioprine and its potential metabolite inhibits adenosine kinase, diminish AMP formation by adenosine. In conclusion, the existance of a novel class of antiinflammatory agents, affects adenosine metabolism and may be a useful antiinflammatory drug as well.
2.Reliability and Validity of Chinese Version of the Reflective Function Questionnaire for Youth
Fangzhou ZUO ; Guo LIU ; Jiyang HAN ; Xiaoen MO ; Xumei WANG
Journal of China Medical University 2016;45(7):601-603,609
Objective To evaluate the reliability and validity of the Reflective Function Questionnaire for Youth(RFQY). Methods School sample:a total of 1 813 students from the fifth grade primary school to the second grade high school were selected for the study(aged 10 to 17 years). Clinical patients:another 52 adolescents(aged under 17 years)with borderline trait who attended Department of Psychiatry in Shengjing Hospital were recruited. All subjects completed the RFQY,basic empathy scale( BES )and emotional intelligence scale(EIS). After 3 weeks,85 students were randomly selected and filled in the questionaires again. Results The internal consistency of the RFQY was 0.73,and the test?retest reliability was 0.686(P<0.001). The RFQY scores of the school students were significantly higher than those in clinical patients(8.71±0.65 vs 8.10±0.89,P<0.001). The RFQY scores of male students were significantly lower than those in female students(8.61±0.67 vs 8.78±0.63,P<0.001). The score increased with the age increased(P<0.001). Conclusion The Chinese version of RFQY shows good reliability and validity , which can be used to measure the reflective function of adolescents in China .
3.Advance of Peptide Detectability Prediction on Mass Spectrometry Platform in Proteomics
Changming XU ; Jiyang ZHANG ; Hui LIU ; Hanchang SUN ; Yunping ZHU ; Hongwei XIE
Chinese Journal of Analytical Chemistry 2010;38(2):286-292
As the complexity of samples and experimental processes, the repeatability of mass spectrometry experiments is still not satisfactory, the results of peptide identification and quantification show high randomicity), the probability of peptide being detected by mass spectrometry in proteome research, especially in quantitative proteomic study, has received much attention. Therefore, a lot of experimental researches have been done, as well as a number of computational prediction methods have been developed. In this article, we summarized the important factors impacting the peptide detectability, investigated the existing prediction methods) and reviewed their applications in experimental study.
4.Research progress of the therapy in treatment-resistant depression
Xiuning YUE ; Zhengfu LIU ; Lanxian YE ; Jiyang WANG ; Lina REN ; Shanshan ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2016;25(3):280-284
Treatment resistant depression is a common and severe mental disorder associated with significant burden of disease .Most individuals receiving conventional pharmacotheraphy fail to achieve and sustain remission.So this is still one of the difficult challenges for the psychiatrist .Much of the research pro-vided indications that the efficacy of treatment for the disease was not optimistic, but the treatment was still made great progress .The common treatments for this disease included pharmacotherapy,psychotherapy,elec-troconvulsive therapy(ECT),transcranial magnetic stimulation (TMS),magnetic resonance guided focused ultrasound surgery( MRgFUS) ,deep brain stimulation ( DBS) ,aerobic exercise,light therapy and so on.Each therapeutic strategy has its own features, and could be suitable or unsuitable in some situations.The high rates of non-remission with first-line treatment strategies make the combination of antidepressant and non-drug treatments to be the new trend of the treatments for treatment resistant depression in the future.
5.Didymin Alleviates Cerebral Ischemia-Reperfusion Injury by Activating the PPAR Signaling Pathway
Qiang LI ; Hongting ZHANG ; Xiumei LIU
Yonsei Medical Journal 2022;63(10):956-965
Purpose:
Cerebral ischemia-reperfusion (IR) injury is a severe secondary injury induced by reperfusion after stroke. Didymin has been reported to have a protective effect on intracerebral hemorrhage. However, the underlying mechanism of didymin on regulating cerebral IR injury remains largely unknown.
Materials and Methods:
A rat cerebral IR model and oxygen-glucose deprivation/reperfusion (OGD/R) model in PC12 cells were established. Hematoxylin and eosin (H&E) was used to detect the pathological changes in brain tissues, and TUNEL staining was performed to detect apoptosis of brain tissues. MTT and flow cytometry were used to measure the viability and apoptosis of PC12 cells. QRT-PCR and western blot were used to detect inflammation cytokines in PC12 cells. Western blot was used to measure the expression of PPAR-γ, RXRA, Bax, c-caspase-3, and Bcl-2.
Results:
Didymin pretreatment decreased apoptotic rates, reduced levels of Bax and c-caspase-3, and increased Bcl-2 level in vivo and in vitro. Additionally, didymin pretreatment increased viability and decreased the inflammation levels [interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α, and monocyte chemotactic protein (MCP)-1] of OGD/R treated PC12 cells. Moreover, didymin activated the peroxisome proliferator-activated receptors (PPAR) signaling pathway and increased the expression of PPAR-γ and RXRA in OGD/R treated PC12 cells. Inhibition of PPAR-γ eliminated the protective effect of didymin on OGD/R treated cells.
Conclusion
Didymin protected neuron cells against IR injury in vitro and in vivo by activation of the PPAR pathway. Didymin may be a candidate drug for IR treatment.
6.Result of Sanger sequencing for newborn carriers of single heterozygous variants of GJB2 or SLC26A4 gene by genechip analysis.
Jun HE ; Yang NA ; Jiyang LIU
Chinese Journal of Medical Genetics 2020;37(11):1213-1216
OBJECTIVE:
To detect additional variants for newborn carriers of single heterozygous variants of the GJB2 or SLC26A4 gene by genechip analysis in Changsha area, and explore the variation spectrum of deafness-related genes in this region.
METHODS:
For 462 newborns carrying single heterozygous variants of the GJB2 or SLC26A4 gene, all exons of the genes were subjected to Sanger sequencing. The pathogenicity of the variants was analyzed by database and literature search.
RESULTS:
For 305 newborns carrying a heterozygous GJB2 variant, 143 (46.49%) were found to carry additional variants, including 29 (9.51%) with c.109G>A likely pathogenic variant, and 1 (6.48%) with c.551G>A pathogenic variant. Among 153 newborns carrying single heterozygous variant of the SLC26A4 gene, 2 (1.31%) were found with a c.281C>T variant, and 1 (0.65%) with a c.1547_1548ins pathogenic variant. Among 4 newborns simultaneously carrying GJB2 and SLC26A4 variants, two were found to carry c.109G>A and c.844T>C variants (clinical significance unknown), respectively.
CONCLUSION
For newborns carrying single heterozygous variants of the GJB2 or SLC26A4 gene by genechip analysis, the detection rate for other variants is quite high. Sanger sequencing can significantly improve the detection rate of high-risk newborns and enrich the variant spectrum of deafness genes.
Connexins/genetics*
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DNA Mutational Analysis
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Deafness/genetics*
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Genetic Carrier Screening
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Heterozygote
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Humans
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Infant, Newborn
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Mutation
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Oligonucleotide Array Sequence Analysis
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Sulfate Transporters/genetics*
7.Multiple modes of doctors⁃patients shared decision⁃marking from the ethical perspective
Chinese Medical Ethics 2024;37(3):261-265
The shared decision marking between doctors and patients is a moral requirement,which stems from the basic rights of medical staff to accept patients or their families,such as autonomy,informed consent and choice.In order to achieve the shared decision marking between doctors and patients,medical staff and patients play different roles.The task of medical staff is to introduce professional knowledge and specific experience,provide patients with multiple recommendations for diagnosis and treatment choices,and the task of patients is to choose treatment plans recognized in the shared decision marking based on their understanding of medical and ethical knowledge such as treatment goals,health values,and basic rights.From the ethical perspective,based on the shared decision marking between doctors and patients,this study deeply analyzes its ethical significance.Centering on the basic requirements of ethics,this study explores various practical models such as the doctor-patient joint participation model,the doctor-patient-family joint participation model,the doctor-nurse-patient joint participation model,the high-risk case conversation model of medical intervention,and the multidisciplinary team collaboration model from multiple perspectives and depths,to further promote the implementation of the shared decision marking between doctors and patients and to provide some reference basis.
8.Reliability and Validity Study of Chinese Version of Reflective Functioning Questionary-54
Lisi XU ; Guo LIU ; Jiyang HAN ; Xiaoen MO ; Pengyang LIU ; Xumei WANG
Journal of China Medical University 2017;46(10):878-881
Objective To evaluate the reliability and validity of reflective functioning questionary-54 (RFQ-54) in China.Methods School sample:a total of 635 students were selected for the study.Clinical patients:another 75 patients with borderline personality trait who visited Department of Psychiatry in Shengjing Hospital of China Medical University were recruited.All subjects filled the RFQ-54,MIS-BPD,TAS,FFMQ.44 students accepted the retest after three weeks.Results The internal consistency for RFQ-C and RFQ-U were both 0.628.The test-retest reliability was 0.835,0.683,respectively.The correlations with TAS,FFMQ,MIS-BPD supported its validity.The RFQ subscales scores were significant1y different between only-child and non-only child,urban and country,school group and clinical group (22.11 ± 1.34 vs 18.97 ± 1.22,22.59 ± 1.36 vs 17.61 ± 1.12,21.39 ± 1.32 vs 15.34 ± 1.08,10.95 ± 8.43 vs 13.58 ± 8.19,10.95 ± 8.36 vs 13.88 ± 8.26,11.47 ± 8.02 vs 22.43 ± 1.24,respectively.P < 0.01).Conclusion The Chinese version of RFQ-54 shows good reliability and validity,which can be used to assess the reflective function of adults in China.
9.Meta-analysis of prognosis after surgical treatment in gastric cancer patients with liver metastasis.
Weisong SHEN ; Jiyang LI ; Jianxin CUI ; Hongqing XI ; Senfeng LIU ; Bo WEI ; Lin CHEN
Chinese Journal of Gastrointestinal Surgery 2014;17(2):128-132
OBJECTIVETo assess the value of gastric and hepatic surgical treatment in gastric cancer patients with liver metastasis and its prognostic implication.
METHODSLiterature search was performed in pubmed, Embase, Ovid, Springer-Link, Web of Science, CNKI, CBMdisc for clinical research published before March 2013 that compared gastrectomy alone to gastrectomy and hepatectomy. Inclusion criteria and exclusion criteria were performed. Quality assessment was based on NOS scale. Stata12.0 was used for statistical analysis.
RESULTSNine studies including 431 patients were enrolled for analysis, among whom 189 underwent gastrectomy and hepatectomy and 242 underwent gastrectomy alone. Gastrectomy and hepatectomy group had better survival(HR=0.50, 95%CI:0.34-0.72, z=3.66, P=0.000). There was a subgroup analysis. Gastrectomy with hepatectomy group had significant advantages in prognosis in four foreign studies(HR=0.28, 95%CI:0.18-0.44, z=5.77, P=0.000). There was no significant difference in five domestic studies (HR=0.74, 95%CI:0.55-1.00, z=1.95, P=0.051).
CONCLUSIONGastrectomy and hepatectomy in gastric cancer patients with liver metastasis improves long-term survival in select patients.
Gastrectomy ; Hepatectomy ; Humans ; Liver Neoplasms ; secondary ; surgery ; Prognosis ; Stomach Neoplasms ; pathology ; surgery
10.Comparison of clinical efficacy of different treatment methods for synchronous liver metastasis from gastric cancer.
Jiyang LI ; Jianxin CUI ; Weisong SHEN ; Hongqing XI ; Senfeng LIU ; Lin CHEN
Chinese Journal of Gastrointestinal Surgery 2014;17(2):117-120
OBJECTIVETo evaluate the efficacy of different treatments for synchronous liver metastasis from gastric cancer.
METHODSClinicopathological and follow-up data of 271 patients with synchronous liver metastasis from gastric cancer between January 1998 and November 2012 were analyzed retrospectively. Among 271 patients, 34 received surgery alone, 95 received chemotherapy alone, and 120 received combined therapy. The prognosis was compared.
RESULTSThe median survival time was 8 months (3-41 months) in the surgery group and the cumulative 1-, 3- and 5-year survival rates were 32.4%, 2.9% and 0. The median survival time was 7 months (3-50 months) in the chemotherapy group and the cumulative 1-, 3- and 5-year survival rates were 21.1%, 1.1% and 0 respectively. The median survival time was 11 months (3-84 months) in the combined group and the cumulative 1-, 3- and 5-year survival rates were 50.0%, 5.0% and 0.8% respectively. The differences among groups were all statistically significant (all P<0.05). Extent of lymph node metastasis, therapeutic strategies, and liver metastasis management were significantly independent prognostic factors for synchronous liver metastasis from gastric cancer.
CONCLUSIONSComprehensive treatment based on operation may improve the long-term survival of patients with synchronous liver metastasis from gastric cancer.
Humans ; Liver Neoplasms ; secondary ; therapy ; Lymphatic Metastasis ; Prognosis ; Retrospective Studies ; Stomach Neoplasms ; pathology ; therapy ; Survival Rate ; Treatment Outcome