1.Potential role of multiple tumor markers chip in preoperative diagnosis of gastric cancer
Jiang HE ; Wuzhong YU ; Hongyun ZOU
Journal of International Oncology 2010;37(6):473-477
Objective To explore the potential value of multiple tumor markers chip( C- 12) in preoperative diagnosis of gastric cancer. Methods The serum levels of 12 rumor markers were measured in 45 gastric cancer patients, 38 benign gastrosis patients and 65 normal controls by use of C-12 in order to find out the most levels of CA199, CEA, CA242, AFP and CA125 in the gastric cancer patients were significantly higher than those of the benign gastrosis patients and normal controls. Moreover, the serum levels of β- HCG and HGH were also significantly higher in gastric cancer group than benign gastric disease group and control group ( P <sis of gastric cancer. CEA is the TM with the highest sensitivity, validity and negative predictive value of 57.8% ,81.8% and 77.1% ,respectively whereas CA242 is the TM with the highest specificity and positive CEA + CA125 + CA199 and CEA + CA242 + CA199 + CA125, respectively. The sensitivity, specificity and validity of the best combination of 2 TMs, 3 TMs and 4TMs for gastric cancer were not statistically significantly different from those of C-12 and the best TM ( P > 0.05 ). Conclusion The multiple tumor markers chip ( C-12 ) has a relatively high value in the preoperative diagnosis of gastric cancer. The best combinations of 2 TMs ( CEA + CA125) ,3 TMs ( CEA + CA125 + CA199 ) and 4TMs ( CEA + CA242 + CA199 + CA125 ) for gastric cancer diagnosis could be sufficient to replace the combination of 12 TMs.
2.The study on cytotoxic effects and mechanisms of unsaturated fatty acid from Maoeryan of gansu origin on human BEL-7402 strain cells
Farong YU ; Xiuzhen LIAN ; Hongyun GUO
Chinese Pharmacological Bulletin 2003;0(12):-
Aim To study cytotoxic effects and mechanisms of unsaturated fatty acid from mao er yan of gansu origin on BEL-7402 strain cells.Methods The essential components of unsaturated fatty acid from mao er yan of gansu origin were determined by gas chromatography-mass spectrometry and cytotoxic effects of un-saturated fatty acid on BEL-7402 strain cells were determined by using flow cytometry,methods of MTT [3-(4,5-dimethyl thiazol-2yl)-2,5-diphenyltetrazolium bromide] and electron microscope scanning after 48 hours of the unsaturated fatty acid from mao er yan of gansu origin treatment at concentrations of 0.2,0.8 and 3.2 mg?L-1,respectively.Results The unsaturated fatty acid from maoer yan of gansu origin had significantly cytotoxic effects on BEL-7402 strain cells and inhibitory rates for proliferation of BEL-7402 strain cells were 34.6%、44.8% and 70.7% at those three concentrations,respectively.50% inhibiting concentration(IC_ 50)was 0.812 mg?L-1.Apoptosis rates were 18.6%,22.7% and 24.2%,respectively,and occurred cell membrane microvilli breakdown and cell rupture,compared to those of the control group.Conclusion The unsaturated fatty acid from mao er yan of gansu origin has significantly cytotoxic effects on BEL-7402 strain cells and their mechanisms may be related to inhibit cell division,destroy the structure of cell membrane and mitochondria.
3.Effect of rapamycin(RPM)on interleukin-10 gene expression in rats with postburn Staphylococcus aureus sepsis
Sheng YAO ; Yongming YAO ; Hongyun LI ; Yan YU ; Zhiyong SHENG
Chinese Journal of Emergency Medicine 2006;0(01):-
Objective To investigate the effect of rapamycin(RPM)on hepatic interleukin-10(IL-10)gene and acute liver injury in rats with postburn Staphylococcus aureus sepsis.Methods Fifty male Wistar rats were randomly divided into four groups:normal control group,scald control group,postburn sepsis group,and RPM treatment group.Tissue samples from liver and plasma were collected to determine IL-10 mRNA and protein expressions,and liver function parameters were also measured.Results Compared to postburn Staphylococcus aureus sepsis group,in RPM treatment group hepatic IL-10 mRNA expression and plasma IL-10 were significantly increased at 0.5 hour after RPM treatment(P
4.Intelligence,Self-concept and Behavior Problem of Girls with Precocious Puberty
Xiaohong QIAO ; Jian YU ; Xiaoyan FU ; Hongyun GAO
Chinese Journal of Clinical Psychology 2000;0(04):-
Objective: We studied the differences in intelligence,self-concept and behavior problem between girls with true precocious puberty and the normal girls.Methods: 35 girls with true precocious puberty aged 8 to 10 years was put into the research group;another 35 girls was put into the normal group(n=35).Both the research group and normal group completed the Piers-Harris Children's Self-concept Scale(PHCSS) and Raven's Standard Progressive Matrices in order to evaluate their levels of self-concept and intelligence respectively.Their parents completed a Child Behavior Check-list(CBCL) and a questionnaire on background status.Results: ①Children in the research group had significantly higher intellectual level than those in the control group.②The PHCSS yielded significantly lower scores of total self-concept,behavior and somatic appearance in the research group than those of the control group.③Higher scores of internal behavior problems,external behavior problems,depression,poor social communication,somatic complaints,delinquent behavior and aggressive behavior at CBCL showed in the research group than those of the control group.Conclusion: ①The level of intelligence of the children in research group was higher than that of children in the control group.②Girls with true precocious puberty showed more behavior problems and lower level of self-concept than those in the control group.
5.Clinical value of multiple tumor marker protein chip detective system in diagnosis and detection of post-operative recurrence of breast cancer
Jiang HE ; Wuzhong YU ; Donghui QIU ; Hongyun ZOU ; Hongchun LIU
Journal of International Oncology 2009;36(1):73-75
Objective To evaluate the clinical value of multiple tumor marker protein chip in diagno-sis and detection of postoperative recurrence of breast cancer.Methods The serum levels of 12 tumor makers (CA199,NSE,CEA, CA2A2,Ferritin,β-HCG,AFP,f-PSA,PSA,CA125,CA153 and HGH)were measured in 70 preoperative breast cancer patients, 32 recurrence patients,52 non-recurrence patients and 76 normal con-trois.Results ①The breast cancer group had significantly higher positive rate than that of the controls (P<0.05).The positive rates and serum levels of CA199,CEA,CA242,Ferritin,CAI25 and CA153 in breast cancer patients had those of control significant differences compared with groups (P<0.05).②The recurrence group had significantly higher positive rate than that of non-recurrence group (P<0.05).The positive rates and se-rum levels of CA199, CEA, Ferritin, CA125 and CA153 in the recurrence patients had significant differences compared with those of non-recurrence patients(P<0.05).③The positive rate of recurrence group had signif-icant difference compared with that of breast cancer group(P<0.05).Moreover,The positive rate and serum level of Ferritin in the recurrence patients had significant difference compared with that of breast cancer pa-tients.Conclusion The multiple tumor marker protein chip detective system has valid value of clinical appli-cation in the diagnosis and detection of postoperative recurrence of breast cancer.The combination detection of CA199, CEA, Ferritin ,CA125 and CA153 may be the economical and effective in the diagnosis and detection of postoperative recurrence of breast cancer.
6.Study on the T cells of T cell receptors BV complementarity determining region 3 lineage polymorphism with peripheral blood in ankylosing spondylitis patients
Kena WEI ; Lu ZHANG ; Min JIAO ; Wuzhong YU ; Hongyun ZOU
Chinese Journal of Rheumatology 2012;16(5):329-332,封3
Objective To study the T cells lineage polymorphism of TCR BV CDR3 in the peripheral blood of ankylosing spondylitis (AS) patients,in order to provide experimental basis for the immunological patho-genesis study of AS.Methods Twenty-six subfamilies of CDR3 T cells of TCR BV in the PBMC of AS patients were amplified by RT-PCR method,then TCR BV CDR3 lineages polymorphism were analyzed by immunization scanning spectrum.Results TCR BV CDR3 scanning spectrum of 20 active AS patients showed abnormal distribution peak,including monoclonal,oligoclonal/oligoclonal trend,skewing peak and irregular abnormal peak.Among them,some subfamilies of 18 patients showed oligoclonal/oligoclonal trend expansion,BV16 and BV18 two subfamilies of one case showed monoclonal expansion.Most spectral type of PBMC TCR BV CDR3 in five normal controls showed Gauss distribution.Conclusion TCR BV CDR3 lineage have significant characteristic polymorphism and spectrum drift characteristics in the peripheral blood of AS patients,which further indicate that T cells has plaied an important role in the immunological pathogenesis of AS.Monoclonal/oligoclonal expansion of T cells may be autoreactive T cells in nature and they may be involved in the pathogenesis of AS.
7.Clinical Landscape of Therapeutic Cancer Vaccines: Challenges and Opportunities
Shupeng LIU ; Mengyang YU ; Xiaofei WU ; Hongyun WANG
Medical Journal of Peking Union Medical College Hospital 2024;15(6):1356-1363
To explore the status and characteristics of clinical trials of therapeutic cancer vaccines, and provide the overall trend of clinical translational research of therapeutic cancer vaccines. The ClinicalTrial registration platform was employed to retrieve relevant clinical trial information of therapeutic cancer vaccines from 2002 to 2023. The current clinical landscape of therapeutic cancer vaccines was analyzed from the perspectives of the number of registrations, types of vaccines, trial design, and geographical distribution. A total of 1563 clinical trials for therapeutic cancer vaccines were obtained from 2002 to 2023, with an average annual registration of approximately 70 trials. Among these, phase Ⅰ trials accounted for 976 (62.4%, 976/1563), phase Ⅱ trials for 474 (30.3%, 474/1563), phase Ⅲ trials for 68 (4.4%, 68/1563), and other types for 45 (2.9%, 45/1563). Clinical trials from phase Ⅰ to phase Ⅲ were conducted in multiple regions worldwide, with multicenter clinical trials totaling 482 (31.8%) and single-center clinical trials totaling 1036 (68.2%). The main types of vaccines were cell vector vaccines (38.7%, 588/1518) and protein/peptide vaccines (34.1%, 518/1518), with the primary research designs being single-arm studies (55.3%, 840/1518) and randomized controlled trials (27.8%, 422/1518). The top five indications for the vaccines were melanoma (16.5%, 251/1518), glioblastoma (8.9%, 135/1518), breast cancer (8.6%, 130/1518), prostate cancer (8.5%, 129/1518), and lung cancer (8.1%, 123/1518). The overall development of clinical trials for therapeutic cancer vaccines has been stable and primarily focused on exploratory trials. The main types of vaccines were cell vector vaccines, and the main research designs were single-arm studies and randomized controlled trials. The vaccines were commonly indicated for melanoma, glioblastoma, and breast cancer. Currently, there are significant challenges in the clinical translation in this field, which may be due to the complexity of the immune microenvironment, patient heterogeneity, and the challenges in vaccine design and preparation. With the application of high-throughput technologies such as proteomics, genomic sequencing, and bioinformatics, it is expected that barriers in the research of therapeutic cancer vaccines would be overcome, thus leading to a better clinical translation landscape.
8.Identification of four novel mutations in the phenylalanine hydroxylase gene in patients with PKU
Wuzhong YU ; Donghui QIU ; Jiang HE ; Hongyun ZOU ; Rui WANG ; Liu YANG
Chinese Journal of Laboratory Medicine 2011;34(6):538-541
Objective To investigate the distributions of PAH gene mutation and provide guidance for gene diagnosis and prenatal diagnosis of patients with PKU in Xinjiang of China.Methods A total of 15 patients (aged from 2 to 10 years, all with blood Phe concentration over 700 μmol/L) who visited Urumqi general hospital of Lanzhou Command were clinically diagnosed as PKU and were included in this study. PCR followed by DNA sequencing was performed to analyze the promoters, all the 13 exons and their flanking introns of PAH gene in these 15 PKU patients.Results PAH gene of 15 PKU patients was amplified by PCR, and PCR products were subjected to DNA sequencing directly.Four PAH gene mutation types, including 5′- Flanking-626G > A, 5′-Flanking-480DelACT, S196fsX4 and IVS8+1G>C, were identified in each of four PKU patients.Consequently reverse DNA sequencing showed G>A at -626 site, ACT deletion at -480 position in the promoter of PAH gene, an insertion at 584 site in the coding region and G>C at the border between exon 8 and intron 8 of PAH gene, respectively. After inquirying from PAH website and international PAH database (www.pahdb.mcgill.ca), these four PAH gene mutation types were verified as novel PAH gene mutations. Additionally, four patients carrying either of these four PAH gene mutation aged 3-5 years old were characterized by typical clinical phenotypes including blood Phe levels between 1 572-1 782 μmol/L, mental retardation, yellow hair and mousy odor of hair, skin and urine. Conclusions 5′-Flanking-626G>A, 5′-Flanking-480DelACT, S196fsX4 and IVS8+1G > C are identified as four novel PAH gene mutations to cause PKU directly probably either by disrupting the normal 3-D structure and affecting enzymatic activity of PAH or depressing the transcription and translation of PAH gene.Together, our identification of four novel PAH gene mutations will provide important clues for future gene diagnosis and prenatal diagnosis of PKU.
9.Research of Narcotrend monitor for the prevention of awareness during general anesthesia
Bin LIANG ; Hengxing ZHENG ; Kangqin ZHANG ; Xuanmin YU ; Hongyun WANG ; Xiaowei XIE ; Rui ZHAO
Chinese Journal of Postgraduates of Medicine 2011;34(33):4-8
ObjectiveTo study the clinical efficacy and safety of Narcotrend (NT) monitor for the prevention of awareness during general anesthesia.MethodsFour hundred and thirty-two patients with elective extubation and general anesthesia (ASA Ⅰ-Ⅱ) were divided into observation group and control group with 216 cases each by random digits table.All patients were treated with total intravenous anesthesia.The patients were given anesthetics by NT monitor in observation group and detemined by the clinical experience of anesthesiologists in control group.The mean arterial pressure (MAP),heart rate (HR),respiratory rate(RR),pulse oxygen saturation(SpO2),NT stages (NTS),NT index (NTI),total sedatives,awaking time,extubation time,Ramsay score was recorded.All patients in the postoperative on the first day and the fourth day were followed-up two times to understand the perception and memory in patients undergoing the situation.ResultsThere was no know in operation in observation group,there was 1 case with suspectedknow and 1 case with definite know in control group.Compared with control group,the awaking time and extubation time was decreased in observation group [ ( 6.0 ± 2.8 ) min vs.( 10.0 ± 4.9 ) min,( 12.0 ± 5.5 ) min vs.( 19.0 ± 6.9) min] (P < 0.05 ); MAP and HR was even more stable.In addition to midasolam,the remaining amount of the drug was less (P < 0.05 ).Ramsay score at awaking,extubation and out of the operating room in observation group was lower than that in control group (P < 0.05).ConclusionNT monitor for total intravenous anesthesia increases the safety of general anesthesia,and it can be reduced to some extent,intraoperative awareness.
10.Analysis of birth defects in Xinjiang multi-ethnic region
Ruoyun QIAN ; Hong LIU ; Nan ZHONG ; Rui WANG ; Hongyun ZOU ; Jiang HE ; Wuzhong YU
Chinese Journal of Tissue Engineering Research 2011;15(20):3797-3800
BACKGROUND: Xinjiang is a multi-ethnic region with significant differences in local geographical position, economic development and climatic environment. OBJECTIVE: To analyze the occurrence and development tendency of birth defects, disease categories and disparity among different ethnic groups and regions in Xinjiang.METHODS: A stratified cluster random sampling observation was performed in 13 counties (cities) according to the status of ethnical distribution and local economics of Xinjiang. Quarter Report Sheet on Babies and The defect babies register card were filled as the scheme of Chinese birth defect monitoring, and ICD10 diagnostic code was adopted in birth defect diagnosis. The birth defects rate was calculated from January 2005 to December 2008, and the disease categories and disparity among different ethnic groups and regions in Xinjiang were analyzed. RESULTS AND CONCLUSION: The average incidence rate of birth defect was 9.74‰, which was dramatically descended in 2006 and ascended afterward yearly. The incidence rate of countryside was higher than city, and male more than female. In geography, south of Tianshan Mountain was higher than north and east in birth defect incidence. Among major ethnic groups in Xinjiang, Sibe and Uygur had the highest birth defect incidence rate, followed by Man, Hazakh, and Han. The birth defect incidence of Han, Uygur and Hazakh people showed descend tendency, Hui, Mongolia, and Man people fluctuated, yet Sibe's rate had a change of rise and fall. The first five birth defect entities were neural tube deformity, cleft lips, anencephaly, congenital hydrocephalus and cleft palate combined with cleft lips. The birth defects rates are different from ethnic groups and regions in Xinjiang.