1.Effects of microRNA-103a-3p on osteoporosis through tumor protein 53-regulated inhibitor of apoptosis 1/P53
Jie-He HUANG ; Qian WANG ; Shun-Jie JIA ; Sheng YANG
Acta Anatomica Sinica 2024;55(2):174-180
Objective To investigate the efeects of microRNA(miR)-103a-3p regulates tumor protein 53-regulated inhibitor of apoptosis 1(TRIAP1)on osteoblast differentiation and bone mass in ovariectomized mice.Methods MC3T3-E1 cells were divided into normal group,miR-103a-3p-NC group,miR-103a-3p mimic group,miR-103a-3p mimic+TRIAP1-NC group,miR-103a-3p mimic+TRIAP1 mimic group.mRNA expression of miR-103a-3p,TRIAP1,P53 were detected by Real-time PCR;Cell proliferation and apoptosis were detected by MTT test and flow cytometry;cytoskeleton and mineralization of cells were detected by F-actin immunofluorescence staining and alizarin staining;alkaline phosphatase(ALP)activity was detected by ELISA.24 female mice were divided into sham group,osteoporosis(OP)group,miR-103a-3p antagonist-NC group,miR-103a-3p antagonist group(six in each group),extract bilateral ovaries to establish an OP model,sham group mice only isolated fat around ovarian tissue.mRNA expression of miR-103a-3p,TRIAP1,P53,ALP,osteocalcin(OCN),osteopontin(OPN)of bone tissue were detected;microCT detect bone mineral density(BMD),bone mineral content(BMC);haematoxylin eosin staining was used to observe pathological changes of bone tissue.Results After miR-103a-3p mimic was transfected into cells,the miR-103a-3p and P53 expression increased,TRIAP1 expression decreased,cell proliferation decreased,apoptosis increased,F-actin expression decreased,the number of calcium nodules decreased,and ALP enzyme activity decreased(P<0.01);however,after TRIAP1 mimic was additionally transfected into cells,the above result caused by miR-103a-3p mimics were significantly reversed(P<0.01).In OP group,the miR-103a-3p and P53 expression in bone tissue increased,the TRIAP1,ALP,OCN and OPN expression decreased,BMD and BMC were decreased,and bone tissue construct was damaged(P<0.05);in miR-103a-3p antagonist group,the miR-103a-3p and P53 expression in bone tissue decreased,TRIAP1,ALP,OCN,OPN expression increased,BMD and BMC increased,and bone tissue construct was improved(P<0.05).Conclusion MiRNA-103a-3p mediate TRIAP1/P53 to inhibit proliferation and mineralization of osteoblast,while miR-103a-3p antagonistic treatment reduce bone loss in OP mice.
2.Exploring mechanism of action and validation of key regulatory pathways of selenshenzhi prescription in treatment of esophageal cancer based on network pharmacology
Ke-Yi JI ; Su-Hui WU ; Jia-Yao YUAN ; Han-Bing LI ; Shun-Cai WANG ; Long-Jie WANG ; Lin-Lin WANG ; Qi-Long GAO
Chinese Pharmacological Bulletin 2024;40(11):2174-2184
Aim To study the main active components and potential mechanism of selenshenzhi prescription a-gainst esophageal cancer by network pharmacology and in vivo and in vitro experiments.Methods The com-mon target was extracted from TCMSP,OMIM and GeneCards databases,and the PPI network was con-structed using STRING database.DAVID database was used for GO and KEGG enrichment analysis,and a network was constructed based on STRING and DAVID database for in vivo and in vitro experimental verifica-tion.Results Prediction results showed that a total of 100 active ingredients and 749 related targets were ob-tained,and 168 common targets were obtained between selenoshenzhi recipe and esophageal cancer,which were involved in the PI3K-AKT signaling pathway and proteoglycan signaling pathways in cancer.Selenshenz-hi prescription was used to conduct preliminary verifi-cation of related targets for human esophageal cancer EC9706 based on in vitro experiments.The results showed that selenshenzhi prescription could significantly inhibit the proliferation of esophageal cancer cells and induce the apoptosis of EC9706 through the expression of Bax,Bcl-2,caspase-3 and other key apoptotic pro-teins.Lastly,the core target and pathway of selensh-enzhi prescription were preliminically verified based on in vivo animal experiments on nude mice with esopha-geal cancer.The results showed that selenshenzhi pre-scription could significantly inhibit tumor proliferation,promote tumor cell apoptosis,and induce tumor apop-tosis by regulating the expression of key proteins on PI3K/AKT signaling pathway.Conclusions Selensh-enzhi prescription can control the occurrence and de-velopment of esophageal cancer through the synergistic effect of multi-components,multi-targets and multi-pathways,and provide a theoretical basis for further clinical investigation of the mechanism of selenshenzhi prescription in the treatment of esophageal cancer in the future.
3.Sofosbuvir/velpatasvir plus ribavirin for Child-Pugh B and Child-Pugh C hepatitis C virus-related cirrhosis
Chen-Hua LIU ; Chi-Yi CHEN ; Wei-Wen SU ; Chun-Jen LIU ; Ching-Chu LO ; Ke-Jhang HUANG ; Jyh-Jou CHEN ; Kuo-Chih TSENG ; Chi-Yang CHANG ; Cheng-Yuan PENG ; Yu-Lueng SHIH ; Chia-Sheng HUANG ; Wei-Yu KAO ; Sheng-Shun YANG ; Ming-Chang TSAI ; Jo-Hsuan WU ; Po-Yueh CHEN ; Pei-Yuan SU ; Jow-Jyh HWANG ; Yu-Jen FANG ; Pei-Lun LEE ; Chi-Wei TSENG ; Fu-Jen LEE ; Hsueh-Chou LAI ; Tsai-Yuan HSIEH ; Chun-Chao CHANG ; Chung-Hsin CHANG ; Yi-Jie HUANG ; Jia-Horng KAO
Clinical and Molecular Hepatology 2021;27(4):575-588
Background/Aims:
Real-world studies assessing the effectiveness and safety of sofosbuvir/velpatasvir (SOF/VEL) plus ribavirin (RBV) for Child-Pugh B/C hepatitis C virus (HCV)-related cirrhosis are limited.
Methods:
We included 107 patients with Child-Pugh B/C HCV-related cirrhosis receiving SOF/VEL plus RBV for 12 weeks in Taiwan. The sustained virologic response rates at off-treatment week 12 (SVR12) for the evaluable population (EP), modified EP, and per-protocol population (PP) were assessed. Thesafety profiles were reported.
Results:
The SVR12 rates in the EP, modified EP and PP were 89.7% (95% confidence interval [CI], 82.5–94.2%), 94.1% (95% CI, 87.8–97.3%), and 100% (95% CI, 96.2–100%). Number of patients who failed to achieve SVR12 were attributed to virologic failures. The SVR12 rates were comparable regardless of patient characteristics. One patient discontinued treatment because of adverse events (AEs). Twenty-four patients had serious AEs and six died, but none were related to SOF/VEL or RBV. Among the 96 patients achieving SVR12, 84.4% and 64.6% had improved Child-Pugh and model for endstage liver disease (MELD) scores. Multivariate analysis revealed that a baseline MELD score ≥15 was associated with an improved MELD score of ≥3 (odds ratio, 4.13; 95% CI, 1.16–14.71; P=0.02). Patients with chronic kidney disease (CKD) stage 1 had more significant estimated glomerular filtration rate declines than patients with CKD stage 2 (-0.42 mL/min/1.73 m2/month; P=0.01) or stage 3 (-0.56 mL/min/1.73 m2/month; P<0.001).
Conclusions
SOF/VEL plus RBV for 12 weeks is efficacious and well-tolerated for Child-Pugh B/C HCV-related cirrhosis.
4.Sofosbuvir/velpatasvir plus ribavirin for Child-Pugh B and Child-Pugh C hepatitis C virus-related cirrhosis
Chen-Hua LIU ; Chi-Yi CHEN ; Wei-Wen SU ; Chun-Jen LIU ; Ching-Chu LO ; Ke-Jhang HUANG ; Jyh-Jou CHEN ; Kuo-Chih TSENG ; Chi-Yang CHANG ; Cheng-Yuan PENG ; Yu-Lueng SHIH ; Chia-Sheng HUANG ; Wei-Yu KAO ; Sheng-Shun YANG ; Ming-Chang TSAI ; Jo-Hsuan WU ; Po-Yueh CHEN ; Pei-Yuan SU ; Jow-Jyh HWANG ; Yu-Jen FANG ; Pei-Lun LEE ; Chi-Wei TSENG ; Fu-Jen LEE ; Hsueh-Chou LAI ; Tsai-Yuan HSIEH ; Chun-Chao CHANG ; Chung-Hsin CHANG ; Yi-Jie HUANG ; Jia-Horng KAO
Clinical and Molecular Hepatology 2021;27(4):575-588
Background/Aims:
Real-world studies assessing the effectiveness and safety of sofosbuvir/velpatasvir (SOF/VEL) plus ribavirin (RBV) for Child-Pugh B/C hepatitis C virus (HCV)-related cirrhosis are limited.
Methods:
We included 107 patients with Child-Pugh B/C HCV-related cirrhosis receiving SOF/VEL plus RBV for 12 weeks in Taiwan. The sustained virologic response rates at off-treatment week 12 (SVR12) for the evaluable population (EP), modified EP, and per-protocol population (PP) were assessed. Thesafety profiles were reported.
Results:
The SVR12 rates in the EP, modified EP and PP were 89.7% (95% confidence interval [CI], 82.5–94.2%), 94.1% (95% CI, 87.8–97.3%), and 100% (95% CI, 96.2–100%). Number of patients who failed to achieve SVR12 were attributed to virologic failures. The SVR12 rates were comparable regardless of patient characteristics. One patient discontinued treatment because of adverse events (AEs). Twenty-four patients had serious AEs and six died, but none were related to SOF/VEL or RBV. Among the 96 patients achieving SVR12, 84.4% and 64.6% had improved Child-Pugh and model for endstage liver disease (MELD) scores. Multivariate analysis revealed that a baseline MELD score ≥15 was associated with an improved MELD score of ≥3 (odds ratio, 4.13; 95% CI, 1.16–14.71; P=0.02). Patients with chronic kidney disease (CKD) stage 1 had more significant estimated glomerular filtration rate declines than patients with CKD stage 2 (-0.42 mL/min/1.73 m2/month; P=0.01) or stage 3 (-0.56 mL/min/1.73 m2/month; P<0.001).
Conclusions
SOF/VEL plus RBV for 12 weeks is efficacious and well-tolerated for Child-Pugh B/C HCV-related cirrhosis.
5.Clinical characterization of testicular yolk sac tumor in children and adults.
Shun-Li YU ; Bin-Jie LUO ; Tian-Yuan ZHAI ; Nai-Chun ZHOU ; Zhi-Bo JIN ; Zhan-Kui JIA ; Jin-Jian YANG ; Chao-Hui GU
National Journal of Andrology 2019;25(2):144-149
Objective:
To compare the clinical characteristics of simple testicular yolk sac tumor (YST) in children with those in adults so as to improve the diagnosis and treatment of the malignance.
METHODS:
This study included 75 cases of simple testicular YST pathologically confirmed between May 2008 and July 2018, which were divided into groups A (aged <18 years, n = 64) and B (aged ≥18 years, n = 11). We analyzed the clinical data on all the cases and compared the clinical manifestations, laboratory results, pathological findings, clinical stages, treatment methods and prognostic outcomes between the two groups of patients.
RESULTS:
The patients of group A ranged in age from 6 months to 5 years ([1.38 ± 0.89] yr), with the tumor diameter of 0.9-6.0 (2.48 ± 1.12) cm, while those of group B from 25 to 49 years (median 34 years), with the tumor diameter of 3.5-6.3 (5.16 ± 1.32) cm, most presenting with a painless scrotal mass, 4 (6.2%) in group A and 5 (45.5%) in group B with testis pain. There were statistically significant differences between the two groups in the tumor diameter and initial manifestations (P < 0.05). All the patients were treated by radical high-level spermatectomy and orchiectomy and, in addition, 1 in group A and 3 in group B by retroperitoneal lymph node dissection (RPLND), 24 in the former and 5 in the latter group followed by chemotherapy. Elevated levels of serum alpha-fetoprotein (AFP) were observed in all the cases. Sixty-five of the patients were followed up for 10-78 (52.00 ± 23.78) months, during which 2 cases of simple metastasis, 3 cases of simple relapse, 3 cases of relapse with metastasis and 5 cases of death were found in group A, and 5 cases of simple metastasis, 1 case of simple relapse, 1 case of relapse with metastasis and 4 cases of death in group B.
CONCLUSIONS
There are significant differences in the clinical manifestation, biological behavior, treatment and prognosis of testicular YST between children and adults. In children, most of the testicular YST cases are at clinical stage I and preferably treated by radical high-level spermatectomy and orchiectomy with favorable prognosis. In adults, however, the tumor is highly malignant, with high incidences of recurrence and metastasis and poor prognosis, for the treatment of which the first choice is radical high-level spermatectomy and orchiectomy combined with RPLND and chemotherapy.
6.Anti-cyclic citrullinated peptide antibody predicts the development of rheumatoid arthritis in patients with undifferentiated arthritis
Li CHUN ; Zhang YAN ; Song HUI ; Gao JIE ; Zhao DONG-BAO ; Zhu QI ; He DONG-YI ; Wang LI ; Li XIANG-PEI ; Liu XU-DONG ; Xiao WEI-GUO ; Wu XIN-YU ; Wu HUA-XIANG ; Tu WEI ; Hu SHAO-XIAN ; Wang XIN ; Li ZHI-JUN ; Lu ZHI-MIN ; Da ZHAN-YUN ; Liang BO ; Liu XIAO-MIN ; Zhao JIN-WEI ; Li LING ; Han FENG ; Qi WU-FANG ; Wei WEI ; Ma XU ; Li ZHEN-BIN ; Zheng GUI-MIN ; Zhang FENG-XIAO ; Li YI ; Wang YOU-LIAN ; Ling GUANG-HUI ; Chen JIN-WEI ; Hou XIAO-QIANG ; Zhang JING ; Chen QING-PING ; Liu CHANG-LIAN ; Zhang YAN ; Zeng JIA-SHUN ; Zou QING-HUA ; Fang YONG-FEI ; Su YIN ; Li ZHAN-GUO
Chinese Medical Journal 2019;132(24):2899-2904
Background:Clinical outcomes of undifferentiated arthritis (UA) are diverse,and only 40 % of patients with UA develop rheumatoid arthritis (RA) after 3 years.Discovering predictive markers at disease onset for further intervention is critical.Therefore,our objective was to analyze the clinical outcomes of UA and ascertain the predictors for RA development.Methods:We performed a prospective,multi-center study from January 2013 to October 2016 among Chinese patients diagnosed with UA in 22 tertiary-care hospitals.Clinical and serological parameters were obtained at recruitment.Follow-up was undertaken in all patients every 12 weeks for 2 years.Predictive factors of disease progression were identified using multivariate Cox proportional hazards regression.Results:A total of 234 patients were recruited in this study,and 17 (7.3%) patients failed to follow up during the study.Among the 217 patients who completed the study,83 (38.2%) patients went into remission.UA patients who developed RA had a higher rheumatoid factor (RF)-positivity (42.9% vs.16.8%,x2=8.228,P=0.008),anti-cyclic citrullinated peptide (CCP) antibodypositivity (66.7% vs.10.7%,x2 =43.897,P < 0.001),and double-positivity rate of RF and anti-CCP antibody (38.1% vs.4.1%,x2 =32.131,P < 0.001) than those who did not.Anti-CCP antibody but not RF was an independent predictor for RA development (hazard ratio 18.017,95% confidence interval:5.803-55.938;P < 0.001).Conclusion:As an independent predictor of RA,anti-CCP antibody should be tested at disease onset in all patients with UA.
7.Quantitative determination of 5 active ingredients in different harvest periods of Ligusticum chuanxiong by HPLC.
Jin-Liang LIU ; Qiao-Jia FAN ; Shun-Lin ZHENG ; Jie TAN ; Juan ZHOU ; Ji-Chao YUAN ; Shi-Min YANG ; Fan-Lei KONG
China Journal of Chinese Materia Medica 2014;39(9):1650-1655
A simple and quick method is described for the determination of ferulic acid, senkyunolide I, senkyunolide H, senkyunolide A and ligustilide in rhizomes of Ligusticum chuanxiong. The 5 active ingredients in the sample was extracted using 40% ethanol and analyzed by reversed-phase high performance liquid chromatography (HPLC). Chromatography separation was performed using Agilent 1100 series HPLC system with a Symmetry C18 column and gradient elution with a mixture of three solvents : solvent A, acetonitrile, solvent B, methanol and solvent C, 1% aqueous acetic acid, 0 min to 5 min A: B: C 20: 40: 40, 5 min to 30 min A: B: C 60 to 100 : 0 : 40 to 0. The effluent was monitored using a VWD detector set at 321 nm (0-4.3 min) and 275 nm (4.31-30 min). The flow rate was set at 1 mL x min(-1) and the injection volume was 10 microL. The column temperature was maintained at 35 degrees C. The calibration curve was linear (r > or = 0.99) over the tested ranges. The average recovery was 94.44%-103.1% (n = 6). The method has been successfully applied to the analysis in different harvest periods of L. chuanxiong samples. In this paper, single-factor randomized block design to study the 5 components content of L. chuanxiong on ten collecting stages. For the L. chuanxiong collected from April 15th to May 30rd, the content of 5 ingredients increased primarily, and then decreased. Determine the appropriate harvest time has important significance to the promotion of the quality of L. chuanxiong.
4-Butyrolactone
;
analogs & derivatives
;
analysis
;
Acetic Acid
;
chemistry
;
Acetonitriles
;
chemistry
;
Benzofurans
;
analysis
;
Chromatography, High Pressure Liquid
;
methods
;
Coumaric Acids
;
analysis
;
Ligusticum
;
chemistry
;
Methanol
;
chemistry
;
Solvents
;
chemistry
;
Time Factors
8.Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients.
Ying ZHENG ; Guang-Yan CAI ; Xiang-Mei CHEN ; Ping FU ; Jiang-Hua CHEN ; Xiao-Qiang DING ; Xue-Qing YU ; Hong-Li LIN ; Jian LIU ; Ru-Juan XIE ; Li-Ning WANG ; Zhao-Hui NI ; Fu-You LIU ; Ai-Ping YIN ; Chang-Ying XING ; Li WANG ; Wei SHI ; Jian-She LIU ; Ya-Ni HE ; Guo-Hua DING ; Wen-Ge LI ; Guang-Li WU ; Li-Ning MIAO ; Nan CHEN ; Zhen SU ; Chang-Lin MEI ; Jiu-Yang ZHAO ; Yong GU ; Yun-Kai BAI ; Hui-Min LUO ; Shan LIN ; Meng-Hua CHEN ; Li GONG ; Yi-Bin YANG ; Xiao-Ping YANG ; Ying LI ; Jian-Xin WAN ; Nian-Song WANG ; Hai-Ying LI ; Chun-Sheng XI ; Li HAO ; Yan XU ; Jing-Ai FANG ; Bi-Cheng LIU ; Rong-Shan LI ; Rong WANG ; Jing-Hong ZHANG ; Jian-Qin WANG ; Tan-Qi LOU ; Feng-Min SHAO ; Feng MEI ; Zhi-Hong LIU ; Wei-Jie YUAN ; Shi-Ren SUN ; Ling ZHANG ; Chun-Hua ZHOU ; Qin-Kai CHEN ; Shun-Lian JIA ; Zhi-Feng GONG ; Guang-Ju GUAN ; Tian XIA ; Liang-Bao ZHONG ; null
Chinese Medical Journal 2013;126(12):2276-2280
BACKGROUNDData on the epidemiology of hypertension in Chinese non-dialysis chronic kidney disease (CKD) patients are limited. The aim of the present study was to investigate the prevalence, awareness, treatment, and control of hypertension in the non-dialysis CKD patients through a nationwide, multicenter study in China.
METHODSThe survey was performed in 61 tertiary hospitals in 31 provinces, municipalities, and autonomous regions in China (except Hong Kong, Macao, and Taiwan). Trained physicians collected demographic and clinical data and measured blood pressure (BP) using a standardized protocol. Hypertension was defined as systolic BP ≥ 140 mmHg and/or diastolic BP ≥ 90 mmHg, and/or use of antihypertensive medications. BP < 140/90 mmHg and < 130/80 mmHg were used as the 2 thresholds of hypertension control. In multivariate logistic regression with adjustment for sex and age, we analyzed the association between CKD stages and uncontrolled hypertension in non-dialysis CKD patients.
RESULTSThe analysis included 8927 non-dialysis CKD patients. The prevalence, awareness, and treatment of hypertension in non-dialysis CKD patients were 67.3%, 85.8%, and 81.0%, respectively. Of hypertensive CKD patients, 33.1% and 14.1% had controlled BP to < 140/90 mmHg and < 130/80 mmHg, respectively. With successive CKD stages, the prevalence of hypertension in non-dialysis CKD patients increased, but the control of hypertension decreased (P < 0.001). When the threshold of BP < 130/80 mmHg was considered, the risk of uncontrolled hypertension in CKD 2, 3a, 3b, 4, and 5 stages increased 1.3, 1.4, 1.4, 2.5, and 4.0 times compared with CKD 1 stage, respectively (P < 0.05). Using the threshold of < 140/90 mmHg, the risk of uncontrolled hypertension increased in advanced stages (P < 0.05).
CONCLUSIONSThe prevalence of hypertension Chinese non-dialysis CKD patients was high, and the hypertension control was suboptimal. With successive CKD stages, the risk of uncontrolled hypertension increased.
Adult ; Aged ; Awareness ; Female ; Humans ; Hypertension ; complications ; epidemiology ; therapy ; Male ; Middle Aged ; Prevalence ; Renal Insufficiency, Chronic ; complications
9.Etoricoxib versus indometacin in the treatment of Chinese patients with acute gouty arthritis: a randomized double-blind trial.
Ting LI ; Shun-le CHEN ; Qing DAI ; Xing-Hai HAN ; Zhan-Guo LI ; Dong-Hai WU ; Xiao ZHANG ; Jie-Ruo GU ; Nan-Ping YANG ; Ling-Yun SUN ; Miu-Jia ZHANG ; Xing-Fu LI ; Chun-de BAO
Chinese Medical Journal 2013;126(10):1867-1871
BACKGROUNDAcute gout is an intensely painful, inflammatory arthritis. Although the non-steroidal anti-inflammatory drugs (NSAIDs) are widely used for this condition, the efficacy is based on only a few studies, particularly in China. We tried to assess the safety and efficacy of etoricoxib in the treatment of acute gouty arthritis in China.
METHODSA randomized, double-blind, active comparator study was conducted at 10 sites in China. Patients (n = 178; ≥ 18 years of age) with acute gouty attack (< 48 hours) were treated for 5 days with etoricoxib (120 mg/d; n = 89) or indometacin (75 mg twice daily; n = 89). The primary efficacy end point was self-assessed pain in the affected joint (0-4 point Likert scale) from days 2 - 5. Secondary end points included investigator assessments of tenderness and swelling, patient/ investigator global assessments of response to therapy, and patients discontinuing treatment. Safety was assessed by adverse events (AEs).
RESULTSEtoricoxib and indometacin had comparable primary and secondary end points. Mean change difference from baseline from days 2 - 5 was 0.03 (95% confidence interval (CI) -0.19 to 0.25; P = 0.6364), which fell within the prespecified comparative bounds of -0.5 to 0.5. No severe AEs were associated with etoricoxib use. Non-severe AEs were mainly digestive and general, and most (73.7%) were mild, although they caused withdrawal of two subjects in the etoricoxib group, due to bilateral renal calculi and uronephrosis of the left kidney (unrelated to etoricoxib) and fever and chills (potentially etoricoxib-related). Overall, AEs were similar, although the absolute number of AEs in the etoricoxib group (n = 31) was less than the indometacin group (n = 34).
CONCLUSIONSEtoricoxib (120 mg once daily) is effective in treating acute gout, is generally safe and well-tolerated, and is comparable in efficacy to indometacin (75 mg twice daily).
Adult ; Aged ; Arthritis, Gouty ; drug therapy ; Cyclooxygenase Inhibitors ; adverse effects ; therapeutic use ; Double-Blind Method ; Female ; Humans ; Indomethacin ; adverse effects ; therapeutic use ; Male ; Middle Aged ; Pyridines ; adverse effects ; therapeutic use ; Sulfones ; adverse effects ; therapeutic use
10.Analysis of BRCA1 gene mutations in patients with early-onset breast cancer and their affected relatives in Guangdong province.
Jie ZHOU ; Nan-yan RAO ; Shun-rong LI ; Liang JIN ; Wei-Juan JIA ; Chang GONG ; Feng-yan YU ; Feng-xi SU ; Er-wei SONG ; Zhi-min SHAO
Journal of Southern Medical University 2009;29(2):213-216
OBJECTIVETo study the BRCA1 mutations in patients with early-onset breast cancer and their affected relatives in Guangdong province and explore the relationship between BRCA1 mutation and the expressions of estrogen receptor(ER), progesterone receptor(PR), HER2 and ALN.
METHODSFrom 58 patients with early-onset breast cancer and their affected relatives, the genomic DNA was extracted from the peripheral blood mononuclear cells and the coding regions of the BRCA1 gene was amplified using polymerase chain reaction. BRCA1 gene mutations were screened by denaturing high performance liquid chromatography (DHPLC) and subsequent direct DNA sequencing. The expression of ER, PR, HER2 and ALN were detected with immunohistochemistry and their relations with the gene mutation were analyzed.
RESULTSDisease-related BRCA1 mutations were detected in 2 of the 58 patients, who were younger than 35 years old, including 1 with a novel splice-site mutation (IVS5-1 G-->A). No association was found between this novel mutation and the expressions of ER, PR, HER2 and ALN.
CONCLUSIONThe incidence of BRCA1 mutation is significantly lower in patients with early-onset breast cancer and their affected relatives in Guangdong province than in the Western populations. The novel mutation identified in BRCA1 gene may represent a mutation characteristic of the patients in Guangdong province. BRCA1 gene mutations may not have any relation with the expression of ER, PR, HER2 and ALN.
Adult ; Age of Onset ; Base Sequence ; Breast Neoplasms ; genetics ; China ; DNA Mutational Analysis ; Female ; Genes, BRCA1 ; Genotype ; Humans ; Molecular Sequence Data ; Mutation ; Receptor, ErbB-2 ; genetics ; Receptors, Estrogen ; genetics ; Receptors, Progesterone ; genetics

Result Analysis
Print
Save
E-mail