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Chen Y, Zhao XK, Xu RH, Song X, Yang MM, Zhou FY, Lei LL, Fan ZM, Han XN, Gao SG, Wang XZ, Liu ZC, Li Li A, Gao WJ, Hu JF, Zhang LG, Wei JC, Jiao FL, Zhong K, Wang WP, Li LY, Ji JJ, Li XM, Wang LD. Transthoracic, thoracoabdominal, and transabdominal surgical approaches for gastric cardia adenocarcinomas: a survival evaluation based on a cohort of 7103 patients. World J Surg Oncol 2022; 20:217. [PMID: 35764996 PMCID: PMC9238161 DOI: 10.1186/s12957-022-02680-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 06/13/2022] [Indexed: 11/22/2022] Open
Abstract
Background This study compared the survival outcomes of different surgical approaches to determine the optimal approach for gastric cardia adenocarcinoma (GCA) and aimed to standardize the surgical treatment guidelines for GCA. Methods A total of 7103 patients with GCA were enrolled from our previously established gastric cardia and esophageal carcinoma databases. In our database, when the epicenter of the tumor was at or within 2 cm distally from the esophagogastric junction, the adenocarcinoma was considered to originate from the cardia and was considered a Siewert type 2 cancer. The main criteria for the enrolled patients included treatment with radical surgery, no radio- or chemotherapy before the operation, and detailed clinicopathological information. Follow-up was mainly performed by telephone or through home interviews. According to the medical records, the surgical approaches included transthoracic, thoracoabdominal, and transabdominal approaches. Kaplan–Meier and Cox proportional hazards regression models were applied to correlate the surgical approach with survival in patients with GCA. Results There were marked differences in age and tumor stage among the patients who underwent the three surgical approaches (P < 0.001). Univariate analysis showed that survival was related to sex, age, tumor stage, and N stage (P < 0.001 for all). Cox regression model analysis revealed that thoracoabdominal approach (P < 0.001) and transabdominal approach (P < 0.001) were significant risk factors for poor survival. GCA patients treated with the transthoracic approach had the best survival (5-year survival rate of 53.7%), and survival varied among the different surgical approaches for different tumor stages. Conclusion Thoracoabdominal approach and transabdominal approach were shown to be poor prognostic factors. Patients with (locally advanced) GCA may benefit from the transthoracic approach. Further prospective randomized clinical trials are necessary. Supplementary Information The online version contains supplementary material available at 10.1186/s12957-022-02680-5.
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Affiliation(s)
- Yao Chen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Xue Ke Zhao
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Rui Hua Xu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Xin Song
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Miao Miao Yang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Fu You Zhou
- Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang, Henan Province, China
| | - Ling Ling Lei
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Zong Min Fan
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Xue Na Han
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - She Gan Gao
- Department of Oncology, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan Province, China
| | - Xian Zeng Wang
- Department of Thoracic Surgery, Linzhou People's Hospital, Linzhou, Henan Province, China
| | - Zhi Cai Liu
- Department of Oncology, Tumor Hospital of Linzhou, Linzhou, Henan Province, China
| | - Ai Li Li
- Department of Oncology, Tumor Hospital of Linzhou, Linzhou, Henan Province, China
| | - Wen Jun Gao
- Department of Thoracic Surgery, Linzhou People's Hospital, Linzhou, Henan Province, China
| | - Jing Feng Hu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Li Guo Zhang
- Department of Thoracic Surgery, Central Hospital of Xinxiang, Xinxiang, Henan Province, China
| | - Jin Chang Wei
- Department of Pathology and Thoracic Surgery, Linzhou Esophageal Cancer Hospital, Linzhou, Henan Province, China
| | - Fu Lin Jiao
- Department of Pathology and Thoracic Surgery, Linzhou Esophageal Cancer Hospital, Linzhou, Henan Province, China
| | - Kan Zhong
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Wei Peng Wang
- Department of Pathology and Thoracic Surgery, Centre for Health Screening and Endoscopy, Cixian People's Hospital, Cixian, Hebei Province, China
| | - Liu Yu Li
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Jia Jia Ji
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Xue Min Li
- Department of Pathology and Thoracic Surgery, Centre for Health Screening and Endoscopy, Cixian People's Hospital, Cixian, Hebei Province, China
| | - Li Dong Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
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Zhou YY, Zhang LG, Jin TT. [The role of job satisfaction and life satisfaction on the relationship between work-family conflict and nurse turnover intention]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:778-781. [PMID: 33142388 DOI: 10.3760/cma.j.cn121094-20191011-00486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zhang LG, Li L, Sun YL. [A study of the relationships between occupational stress career calling and occupational burnout among primary teachers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:107-110. [PMID: 32306672 DOI: 10.3760/cma.j.issn.1001-9391.2020.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To discuss the relationships between occupational stress, career calling and occupational burnout among primary school teachers, and test whether career calling moderates the relationship between occupational stress and occupational burnout. Methods: 399 teachers from public primary schools were recruited as participant. Their occupational stress and burnout, and career calling were assessed via online questionnaire in the period between March and August 2018. Hierarchical multiple regression was used to test the moderating role of career calling. Results: The score of occupational stress was (3.59±0.85) , the score of career calling was (3.15±0.69) and the score of occupational was (3.26±0.88) . Occupational stress was significantly and positively related to occupational burnout (r=0.42, P<0.01) , while career calling was significantly and negatively related to occupational stress (r=-0.30, P<0.01) and occupational burnout (r=-0.32, P<0.01) . Career calling moderated the relationship between occupational stress and occupational burnout. Conclusion: Career calling as a personal resource buffers the positive relationship between occupational stress and occupational burnout. School leaders can promote teachers' career calling by endowing educational work with more meaning, which leading to lower level of occupational burnout.
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Affiliation(s)
- L G Zhang
- School of Teacher Education, Shaoxing University, Shaoxing 312000, China
| | - L Li
- School of Teacher Education, Shaoxing University, Shaoxing 312000, China
| | - Y L Sun
- School of Teacher Education, Shaoxing University, Shaoxing 312000, China
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Zhang LG, Jin TT. [An analysis of the current state of nurses' career satisfaction and its relationship to career calling in the tertiary hospitals]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 36:603-606. [PMID: 30317811 DOI: 10.3760/cma.j.issn.1001-9391.2018.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To know about the current state of nurses' career satisfaction in the tertiary hospital, and explore the relationship between career calling and career satisfaction. Methods: From September 2017 to December, using convenience sampling, 483 nurses distributed eight tertiary hospitals were selected to complete career satisfaction scale and career calling scale. Results: The total score of nurses' career satisfaction was (2.81+0.65) , four factors were rowed from low to high in order: financial success, power and status, employability, knowledge and skill development (2.29±0.98, 2.64±0.87, 3.10±0.69, 3.20±0.71) . There were significant differences existed in different genders, marital status, educational backgrounds, working lives and positional titles (t=2.51, -1.96, -3.59; F=7.92, 8.83, P<0.05) . The score of nurses' career calling was (3.21±0.81) . There were significant differences existed in different genders, educational backgrounds, working lives and positional titles (t=5.87, -1.96; F=5.60, 11.13, P<0.05) . Career calling is positively related to career satisfaction (r=0.528, P<0.05) . Conclusion: Overall, the level of career satisfaction of nurses is low, especially the financial success. Hospital human resource management should endow more values and meanings on nursing posts, in turn enhance nurses' career calling and career satisfaction.
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Affiliation(s)
- L G Zhang
- School of Teacher Education, Shaoxing University, Shaoxing 312000, China
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Ge XK, Wang AA, Ying ZX, Zhang LG, Su WP, Cheng K, Feng CC, Zhou YM, Zhang LL, Wang T. Effects of diets with different energy and bile acids levels on growth performance and lipid metabolism in broilers. Poult Sci 2019; 98:887-895. [PMID: 30239873 DOI: 10.3382/ps/pey434] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 08/26/2018] [Indexed: 01/14/2023] Open
Abstract
This experiment was conducted to evaluate the effects of bile acids (BAs) on the growth performance and lipid metabolism of broilers fed with different energy level diets. 480 one-day-old Arbor Acres broilers (45.01 ± 0.26 g) were allotted to a 2 × 2 factorial design with 2 levels of energy (basal or high-energy level) and 2 levels of BAs (with or without BAs supplementation), resulting in 4 groups of 8 replicates; the experiment lasted 42 d. High-energy diets decreased the feed/gain ratio (F/G) from 1 to 21 d (P < 0.05), and increased the liver index and abdominal fat percentage at 42 d (P < 0.05). The serum total triglyceride (TG) and high-density lipoprotein cholesterol at 42 d were increased by high-energy diets (P < 0.05), while the hepatic lipoprotein lipase (LPL) activity at 21 and 42 d was decreased (P < 0.05). BAs supplementation increased the body weight at 21 d and decreased the F/G during entire period (P < 0.05), as well as improved the carcass quality reflected by decreased abdominal fat percentage at 42 d and increased breast muscle percentage at 21 and 42 d (P < 0.05). The serum TG at 21 and 42 d were decreased by BAs (P < 0.05), and the hepatic LPL activity at 42 d was increased (P < 0.05). In addition, high-energy diets increased the expression of sterol regulatory element binding transcription factor 1, acetyl-CoA carboxylase, and fatty acid synthase (P < 0.05), while BAs diets decreased these genes expression (P < 0.05). Moreover, BAs supplementation also increased the expression of carnitine palmitoyltransferase 1 (P < 0.05), which was increased in high-energy groups (P < 0.05). In conclusion, BAs supplementation could increase growth performance, elevate carcass quality, and improve lipid metabolism in broilers.
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Affiliation(s)
- X K Ge
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - A A Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - Z X Ying
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - L G Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - W P Su
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - K Cheng
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - C C Feng
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - Y M Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - L L Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
| | - T Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu 210095, Nanjing, P. R. China
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Zhang LG, Ma HL, Wang ZJ, Zhou YY, Jin TT. [Effect of leader-member exchange on nurses'sense of calling in workplace]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:898-902. [PMID: 29495150 DOI: 10.3760/cma.j.issn.1001-9391.2017.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of leader-member exchange on nurses'sense of calling in workplace based on self-determination theory. Methods: A total of 381 nurses were randomly selected from five tertiary general hospitals in Zhejiang province, China from October to December, 2016. They were subjected to a survey using the Leader-Member Exchange Scale, Job Autonomy Scale, Core Self-Evaluation Scale, and Calling Scale. The mediating effect was used to test the procedures and the data were subjected to hierarchical regression analysis. Results: The leader-member exchange was positively correlated with job autonomy, core self-evaluation, and sense of calling (r=0.471, P<0.001; r=0.373, P<0.001; r=0.475, P<0.001) ; the leader-member exchange had a positive predictive effect on job autonomy and sense of calling (β= 0.47, P<0.001; β=0.48, P<0.001) ; the job autonomy had a partial mediating effect on the relationship between leader-member exchange and sense of calling (F=66.50, P<0.001) ; the core self-evaluation negatively adjusted the positive relationship between leader-member exchange and job autonomy (F=27.81, P<0.001) . Conclusion: High-quality leader-member exchange enhances the sense of calling by improving staffs' job autonomy and the core self-evaluation reduces the positive relationship between leader-member exchange and job autonomy.
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Affiliation(s)
- L G Zhang
- School of Teacher Education, Shaoxing University, Shaoxing 312000, China
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Yuan CW, Liu WX, Hou JL, Zhang LG, Wang GQ. Prevalence of pathogenicity island ETT2 in Escherichia coli isolated from piglets with diarrhea in northeast of China. Pol J Vet Sci 2018; 21:5-12. [PMID: 29623998 DOI: 10.24425/119016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Our aim was to investigate the prevalence of the pathogenicity island ETT2 and to examine the relationship between the ETT2 locus and other virulence factors in Escherichia coli (E. coli) isolated from piglets with diarrhea. A total of 354 E. coli strains isolated from scouring piglets were tested using PCR for the presence of the ETT2 locus. The E. coli strains were also analyzed for enterotoxins, fimbriae, non-fimbrial adhesin, Shiga toxins, pathogenicity islands, α-haemolysin (hlyA), afa8 gene cluster and autotransporter protease (sepA) genes. The results showed that 215 (60.7%) of the isolates possessed the ETT2 island. In 215 ETT2-positive E. coli strains, the virulence genes found were EAST1 (27.0%), irp2 (18.6%), paa (15.4%), STb (7.9%), LT (6.5%), ler (4.7%), hlyA (3.7%), AIDA-I (3.7%), K88 (3.7%), eae (3.3%), STa (2.8%), afaD (1.4%), afaE (1.4%), K99 (0.9%) and sepA (0.47%), respectively, and the isolates could be assigned into 25 different virulence factor patterns. In 139 ETT2-negative E. coli strains, the virulence genes detected were EAST1 (38.9%), paa (14.4%), STb (11.5%), AIDA-I (10.1%), irp2 (7.9%), sepA (2.16%), LT (0.7%), STa (0.7%), eae (0.7%), ler (0.7%), hlyA (0.7%) and K88 (0.7%), respectively, and the isolates could be classified into 13 different virulence factor patterns. Moreover, the occurrence of LT gene of ETT2-positive E. coli strains was far more than that of ETT2-negative E. coli strains.
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Affiliation(s)
- C W Yuan
- College of life and health sciences, Northeastern University, No. 89, Wenhua East Road, Shenyang, Liaoning,110011, P. R. China
| | - W X Liu
- Laboratory of Hematology, Affiliated hospital of Guangdong Medical College, No.2, Wenming East Road, Zhanjiang, 524001, P. R. China
| | - J L Hou
- College of life and health sciences, Northeastern University, No. 89, Wenhua East Road, Shenyang, Liaoning,110011, P. R. China
| | - L G Zhang
- Center for Animal Disease Emergency of Liaoning province, No.56, Dongling Road, Shenyang, Liaoning, 110004, P. R. China
| | - G Q Wang
- College of life and health sciences, Northeastern University, No. 89, Wenhua East Road, Shenyang, Liaoning,110011, P. R. China
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Zhang LG, Jin TT, Zhou YY, Yu JD, Yu FY. [Effect of occupational exposure on job burnout in nurses]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:209-213. [PMID: 28511309 DOI: 10.3760/cma.j.issn.1001-9391.2017.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the effect of occupational exposure on job burnout in nurses, and to analyze the mediating effect of negative emotion between occupational exposure and job burnout and the regulatory effect of supervisor support on occupational exposure and negative emotion. Methods: From September to December, 2015, simple random sampling was used to select 543 nurses from six tertiary hospitals in Zhejiang Province, China. The questionnaires consisted of occupational exposure risk questionnaire, negative emotion questionnaire, supervisor support questionnaire, and job burnout questionnaire. Results: The total score of occupational exposure risk in nurses was 11.43±7.19; the score of emotional exhaustion was 3.19±1.24, the score of low sense of personal accomplishment was 3.02±1.21, and the score of sense of working indifference was 2.24±1.06. There were significant differences in occupational exposure score between nurses with different sexes (t=2.61, P<0.01) and working years (F=4.49, P<0.01) . There were significant differences in the scores of emotional exhaustion and low sense of personal accomplishment in nurses with different sexes (t=5.25, P<0.001) and working years (t=-3.48, P<0.01) . Occupational exposure had positive effects on negative emotion (β=0.41, P<0.05) , emotional exhaustion (β=0.47, P<0.05) , sense of working indifference (β=0.42, P<0.05) , and low sense of personal accomplishment (β=0.17, P<0.05) . Negative emotion had a partial mediating effect between occupational exposure and emotional exhaustion (total effect size 30.5%, P<0.05) and between occupational exposure and sense of working indifference (total effect size 37.1%, P<0.05) . Negative emotion had a complete mediating effect between occupational exposure and low sense of personal accomplishment (β=0.08, P>0.05) . Supervisor support negatively regulate the effects of occupational exposure and negative emotion (F=21.73, P<0.001) . Conclusion: In nurses, occupational exposure has a direct positive effect on job burnout and indirectly influences job burnout via negative emotion. Supervisor support can reduce the negative impact of occupational exposure on negative emotion.
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Affiliation(s)
- L G Zhang
- College of Education, Shaoxing University, Shaoxing 312000, China
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Jia JG, Zhang LG, Guo CX, Wang YG, Chen BL, Wang YM, Qian J. [Artemisinin inhibits proliferation of gallbladder cancer cell lines through triggering cell cycle arrest and apoptosis]. Zhonghua Wai Ke Za Zhi 2016; 54:222-7. [PMID: 26932893 DOI: 10.3760/cma.j.issn.0529-5815.2016.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the effects of artemisinin on proliferation, cell cycle and apoptosis of gallbladder cancer cells. METHODS Gallbladder carcinoma cell lines(GBC-SD and NOZ)were cultured in vitro. The effects of artemisinin in different concentration on proliferation of the two cell lines in vitro were examined using MTT assay. The cell cycle distribution of GBC-SD and NOZ cells 24 h after treatments with artemisinin(20 μmol/L) were examined using flow cytometry. The apoptosis of GBC-SD and NOZ cells 24 h after treatments with artemisinin (20 μmol/L) were examined using Annexin V/PI staining.The expressions of p-ERK1/2, CDK4, cyclin D1, p16, cytochrome C and caspase-3 were examined by Western blot assay. t-test and one way ANOVA were used to evaluate the differences between two groups and more than two groups, respectively. RESULTS The cell proliferation was significantly inhibited by artemisinin, the IC50 of artemisinin against GBC-SD and NOZ cells were 14.05 μmol/L and 12.42 μmol/L, respectively.Artemisinin induced cycle arrest, and G1 population of GBC-SD and NOZ cells increased to 74.60% and 78.86%. Cell apoptosis and apoptotic population of GBC-SD and NOZ cells were increased to 15.67% and 16.51% after dealt with artemisinin, respectively. In addition, expression of p16 was increased, and expressions of p-ERK1/2, CDK4 and cyclin D1 were down-regulated by artemisinin(all P<0.05). Cytochrome C was released from mitochondria to cytoplasm leading to the activation of caspase-3 and PARP after dealt with artemisinin(P<0.05). CONCLUSION The inhibition effect of artemisinin on the proliferation gallbladder cancer cells is accompanied by down-regulation of ERK1/2 signaling pathway, G1 phase arrest and triggering caspase-3-mediate apoptosis.
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Affiliation(s)
- J G Jia
- Department of Oncology Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233003, China
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Zhang LG, Chang Y, Zhang XF, Guan FZ, Yuan HM, Yu Y, Zhao LJ. Analysis of the genetic diversity of Chinese native Cannabis sativa cultivars by using ISSR and chromosome markers. Genet Mol Res 2014; 13:10490-500. [PMID: 25511032 DOI: 10.4238/2014.december.12.10] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Hemp (Cannabis sativa) is an important fiber crop, and native cultivars exist widely throughout China. In the present study, we analyzed the genetic diversity of 27 important Chinese native hemp cultivars, by using inter-simple sequence repeats (ISSR) and chromosome markers. We determined the following chromosome formulas: 2n = 20 = 14m + 6sm; 2n = 20 = 20m; 2n = 20 = 18m + 2sm; 2n = 20 = 16m + 4sm; and 2n = 20 = 12m + 8sm. The results of our ISSR analysis revealed the genetic relationships among the 27 cultivars; these relationships were analyzed by using the unweighted pair-group method based on DNA polymorphism. Our results revealed that all of the native cultivars showed considerable genetic diversity. At a genetic distance of 0.324, the 27 varieties could be classified into five categories; this grouping corresponded well with the chromosome formulas. All of the investigated hemp cultivars represent relatively primitive types; moreover, the genetic distances show a geographical distribution, with a small amount of regional hybridity.
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Affiliation(s)
- L G Zhang
- College of Life Science, Northeast Agricultural University, Harbin, China
| | - Y Chang
- College of Life Science, Northeast Agricultural University, Harbin, China
| | - X F Zhang
- College of Mathematics and Information Sciences of Guangxi University, Nanning, China
| | - F Z Guan
- Institute of Industrial Crops, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - H M Yuan
- Institute of Industrial Crops, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Y Yu
- Institute of Industrial Crops, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - L J Zhao
- Institute of Crop Breeding, Heilongjiang Academy of Agricultural Sciences, Harbin, China
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Xu XY, Zhang Y, Zhang LG, Fang ZY. Identification of sequence-related amplified polymorphism and insertion-deletion markers linked to the male fertility restorer gene of pol-like CMS06J45 in heading Chinese cabbage (Brassica rapa subsp pekinensis). Genet Mol Res 2014; 13:9606-14. [PMID: 25501170 DOI: 10.4238/2014.november.14.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In order to map the restorer gene BrRfp of the polima (pol)-like cytoplasmic male sterility (CMS) 06J45 line in heading Chinese cabbage, an F2 segregating population with 258 individuals of CMS06J45 and the restorer line 01S325 were tested by sequence-related amplified polymorphism (SRAP) and insertion-deletion (InDel) technologies combined with the bulked segregant analysis method. As a result, two SRAP markers, me3em3.366 and pm88bg5.263, that were linked with the BrRfp gene were identified from 463 SRAP primer pairs. By cloning, sequencing, and basic local alignment search tool analysis, the two markers were targeted to the BGIScaffold000053 of Brassica rapa in the Brassica database. Using the BGIScaffold000053 sequence, four InDel primer pairs were designed and identified to be linked with the BrRfp gene in this population. Linkage analysis showed that these markers were distributed on both sides of the BrRfp gene, the linkage distances of two nearest markers InDel878.1125 and InDel920.713 were 0.82 and 0.46 cM, respectively, and the BrRfp gene was restricted to a 243-kb genomic region of B. rapa. These specific markers provided basic information for map-based cloning of the BrRfp gene and will be very valuable for the marker-assisted selection of a new restorer line in heading Chinese cabbage.
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Affiliation(s)
- X Y Xu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
| | - L G Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
| | - Z Y Fang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
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12
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Zhang XL, Zhang LG. Molecular cloning and expression of the male sterility-related CtYABBY1 gene in flowering Chinese cabbage (Brassica campestris L. ssp chinensis var. parachinensis). Genet Mol Res 2014; 13:4336-47. [PMID: 25036178 DOI: 10.4238/2014.june.10.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Expression of the YABBY gene family in the abaxial surface of lateral plant organs determines abaxial destiny of cells, enhances growth and expansion of lateral organs, and plays an important role in polar establishment of lateral organs. However, the YABBY gene has not been studied in male sterility and fertility restoration. We homologously cloned the CtYABBY1 gene of male-sterile TC1 in Brassica campestris L. ssp chinensis var. parachinensis; its expression was analyzed by real-time PCR. A 937-bp sequence was cloned from TC1 and named CtYABBY1. The ORF of this gene has 702 bp, contains a "C2C2 zinc finger" motif at the N-terminal end, and a "YABBY" structural domain at the C-terminal end. This gene had the highest homology with DBC43-3-2 gene in B. campetris ssp pekinensis. Expression of CtYABBY1 gene has a wide range of functions. It is involved in growth and development of lateral organs, such as leaves and flowers, enhancing expansion of the area and volume of young organs. CtYABBY1 is a gene that promotes thermo-sensitive fertility restoration. At room temperature, expression level of this gene was found to be lower in the stamens of sterile flowers. After treating TC1 at a low temperature of 2°-6°C for 20 days, expression of this gene was upregulated in the stamen of fertile flowers. We conclude that male sterility in TC1 is negatively regulated by this gene, which facilitates transition from male sterility to fertility.
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Affiliation(s)
- X L Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, China
| | - L G Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, China
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13
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Zhang J, Sun XL, Zhang LG, Hui MX, Zhang MK. Analysis of differential gene expression during floral bud abortion in radish (Raphanus sativus L.). Genet Mol Res 2013; 12:2507-16. [PMID: 23979885 DOI: 10.4238/2013.july.24.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Radish floral bud abortion (FBA) is an adverse biological phenomenon that occurs during reproduction. Although FBA occurs frequently, its mechanism remains unknown. To elucidate the molecular mechanism underlying FBA, we detected gene expression differences between aborted and normal buds of radish using cDNA-amplified fragment length polymorphism (AFLP) and real-time polymerase chain reaction (real-time PCR). A total of 221 differentially expressed transcript-derived fragments (TDFs) were detected by 256 cDNA-AFLP primer combinations, of which 114 were upregulated and 107 were downregulated in the aborted buds. A total of 54 TDFs were cloned and sequenced. A BLAST search revealed that all TDFs have homologous sequences and 29 of these corresponded to known genes, whose functions were mainly related to metabolism, stimulus response, transcriptional regulation, and transportation. Expressions of 6 TDFs with different functions were further analyzed by real-time PCR yielding expression profiling results consistent with the cDNA-AFLP analysis. Our results indicated that radish FBA is related to abnormalities in various physiological and biochemical plant processes.
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Affiliation(s)
- J Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
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14
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Huang SL, Shi W, Zhang LG. Congenital dermal sinus of the cervical spine: clinical characteristics and management. J Neurosurg Sci 2012; 56:61-66. [PMID: 22415384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Congenital dermal sinus (CDS) in the cervical region is extremely rare with only few cases reported in the literature. This study reports a young case of CDS, by which we demonstrate the clinical characteristics and management of cervical CDS, particularly in kids. A 2-year and 7-month-old male child who presented with a one-year history of difficulty in holding objects by hands was diagnosed to have harbored a CDS in the cervical spine since birth. Neurological examination demonstrated mild weakness in both hands and also atrophy in intrinsic hand muscles. Surgery was performed right after diagnosis. Intraoperatively, the sinus tract was totally excised, and untethering was performed. No complications were found after operation. Histopathological examination suggested dorsal dermal sinus. During the follow-up of three years, the patient presented a stable neurologic deficit but did not suffer from an aggravation or improvement of nervous symptoms. At three-year follow-up, the patient was a stable neurologic deficit, and MRI revealed no evidence of the untethered cervical spinal cord and dermal sinus tract. The management strategies of CDS are early surgical treatment to prevent the development of neurological defects.
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Affiliation(s)
- S L Huang
- Department of Neurosurgery, the Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
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15
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Hernandez M, Golbert S, Zhang LG, Kim JR. Creation of aggregation-defective α-synuclein variants by engineering the sequence connecting β-strand-forming domains. Chembiochem 2011; 12:2630-9. [PMID: 21998035 DOI: 10.1002/cbic.201100430] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Indexed: 12/18/2022]
Abstract
The aggregation of α-synuclein (αS), which is implicated in the pathology of Parkinson's disease, produces fibrils in which layers of parallel, in-register β-sheet-loop-β-sheets are formed. The effects of sequence variation in the loop-forming region (referred to as the linker region) on αS aggregation have yet to be systematically studied. In the study described here, we created and characterized αS variants containing mutations in the linker regions. Our results indicate that although the physicochemical properties of the linker region, evaluated based on an intrinsic property of a single amino acid, still play a significant role in aggregation, additional factors can also determine aggregation of αS linker mutants. Our analyses suggest that these factors include a pairwise potential for parallel in-register β-sheet formation. A linker variant displaying significantly reduced self-aggregation interfered with αS aggregation by inhibiting the conversion of αS soluble species to αS insoluble fibrils. We anticipate that linker mutations could serve as a novel method of creating αS variants that are aggregation-defective and/or inhibit αS aggregation.
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Affiliation(s)
- Michael Hernandez
- Othmer-Jacobs Department of Chemical and Biological Engineering, Polytechnic Institute of New York University, 6 MetroTech Center, Brooklyn, NY 11201, USA
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16
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Wang J, Wang XF, Zhang LG, Xie SY, Li ZL, Li YJ, Li HH, Jiao F. Involvement of the mitochondrial pathway in p53-independent apoptosis induced by p28GANK knockdown in Hep3B cells. Cytogenet Genome Res 2009; 125:87-97. [PMID: 19729910 DOI: 10.1159/000227831] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2009] [Indexed: 11/19/2022] Open
Abstract
It is well known that TP53 may mediate apoptosis triggered by anticancer drugs. However, accumulating evidence indicates that TP53 may be inactivated by mutations and/or deletions in about 50% of human cancers and, as such, may lead to pronounced resistance to therapeutic agents. Thus, the development of new approaches to improve the efficiency of therapeutic agents in cancer cells harboring mutant TP53 may have a significant impact on cancer treatment. It has been reported that knockdown by RNA interference (RNAi) of p28GANK (an alias of the gene PSMD10), a novel oncogene over-expressed in hepatocellular carcinoma (HCC), can induce apoptosis in HepG2, a TP53-intact HCC cell line. Because of the high frequency TP53 mutations in HCC, it is relevant to know whether p28GANK knockdown-induced apoptosis is also operational in TP53-negative HCC cells. Here, we investigated Adsip28GANK-induced apoptosis in the TP53-negative HCC cell line Hep3B. Our results indicate that p28GANK-knockdown induces the generation of reactive oxygen species (ROS), which in turn activates p38. Since p38 can signal to Bax, its activation may lead to mitochondrial transmembrane potential (Delta psi m) loss, cytochrome c release from mitochondria to cytosol, and caspase-9 activation, eventually triggering the mitochondrial pathway of apoptosis.
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Affiliation(s)
- J Wang
- Department of Biotechnology, Binzhou Medical College, Binzhou, PR China
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17
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Zeng GF, Zhang LG, Zhang ZQ. [Expression of extracellular domain of VEGF receptor KDR with recombinant AAV]. Sheng Wu Gong Cheng Xue Bao 2001; 17:388-91. [PMID: 11702693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
New vessel formation plays a key role in tumor growth and transforming, and the Vascular endothelial growth factor (VEGF) is the most important factor inducing tumor vessel formation. The cDNA of extracellular domain of VEGF receptor KDR was cloned from primary cultured HUVEC by RT-PCR and subcloned into AAV vector pSNAV. Recombinant AAV was obtained from BHK cells transformed with pSNAV/KDR after adding helper virus. The recombinant AAV expressing soluble KDR that can bind to VEGF. In vivo experiment demonstrated that the recombinant virus can inhibit the new vessel formation of melanoma in C57 mice model.
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Affiliation(s)
- G F Zeng
- National Laboratory of Molecular Virology and Genetic Engineering, Institute of Virology, Beijing 100052, China
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18
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Zeng GF, Zhang ZQ, Zhang LG, Chen AJ, Yao LH, Hou YD. [Cloning of VEGF receptor KDR and its expression in insect cells]. Sheng Wu Gong Cheng Xue Bao 2001; 17:140-4. [PMID: 11411219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
The cDNA fragment of the first 3 loops of VEGF receptor, KDR, was cloned by PCR and inserted into a baculovirus expression plasmid pFASTBACI. The competent E. coli DH10BAC cell, which contain another plasmid with baculovirus genome in it, was transformed with pFASTBACI-KDRn3. Homologous recombination in the prokaryotic cells resulted in a recombinant plasmid containing KDRn3 in baculovirus genome. Transfection of the insect cell SF-9 with above plasmid generated a recombinant baculorvirus contain target gene fragment. SDS-PAGE and Western blot analysis of the supernatant of the infected SF-9 cell showed that KDRn3 was secreted in the medium. The recombinant protein was verified with Western blot and tested for their binding activity with VEGF. Its anti-angiogenic activity was assayed on chorionic allantoic membrane(CAM) of fertilized egg. The results showed that the recombinant protein could inhibit new vessel formation on CAM of fertilized eggs.
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Affiliation(s)
- G F Zeng
- State Key Laboratory of Molecular Virology and Genetic Engineering, Beijing 100052, China
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19
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Gao Y, Liu BZ, Zhu XL, Shi L, Chen JL, Gong M, Zhang LG. [A study on the chemical components of essential oil of oak moss concrete by gas chromatography/mass spectrometry]. Se Pu 2000; 18:251-3. [PMID: 12541566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
The essential oil of oak moss concrete was extracted by volatile oil content equipment. The chemical compositions and their relative contents were analyzed by GC and GC/MS. A Supelco-5 fused silica capillary column (30 m x 0.32 mm i.d.; 0.25 micron thickness) and a flame ionization detector (FID) were employed in GC analysis. The temperature program included temperature increase of 4 degrees C/min from 50 degrees C to 250 degrees C, and a 10 min isothermal period at 250 degrees C. Mass spectra were obtained by electron impact at 70 eV and a source temperature of 170 degrees C. Twenty-four volatile compounds of oak mass concrete were identified, which comprised more than 83% of volatile fraction. The major components were diethyl phthalate, alpha-terpineol, cedrane and linalool.
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Affiliation(s)
- Y Gao
- Analysis and Measurement Center, Hefei Institute of Economics and Technology, Hefei 230052, China
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20
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Ming J, Sheng LL, Zhang LG, Ren QD, Fen ZJ, Ru FS, Ling WS. Relation between weight and body fat's distribution and ambulatory blood pressure in Chinese elderly. Clin Exp Hypertens 1994; 16:545-63. [PMID: 7951162 DOI: 10.3109/10641969409067961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Ninety-five subjects aged 60 years and over underwent casual and ambulatory blood pressure (BP) measurements as well as weight, height, both waist and hip circumferences and both upper arm and thigh circumferences. Most anthropometric variables were significantly correlated with measures of BP. One stepwise regression analysis was applied to reveal that among measures of BP, 24-hour systolic BP had the strongest correlation with waist/hip ratio and awaking diastolic BP the strongest correlation with weight, both waist and hip circumferences and body mass index. Another was used to show that waist/hip ratio was the best overall predictor of systolic BP and weight the best overall predictor of diastolic BP. We suggest that (1) ambulatory BP be superior to casual BP in evaluating effect of weight and body fat's distribution on BP and (2) waist/hip ratio more important than weight in the hypertensive target organ damage and the prognosis of hypertension in Chinese elderly population.
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Affiliation(s)
- J Ming
- Hypertension Division, Fu Wai Hospital, Chinese Academy of Medical Sciences, Beijing
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Ming J, Sheng LL, Zhang LG, Ren QD, Xueyan C, Fen ZJ, Ru FS, Ling WS. Abnormal renal function in isolated systolic hypertension correlation with ambulatory blood pressure. Int J Cardiol 1993; 41:69-75. [PMID: 8225675 DOI: 10.1016/0167-5273(93)90138-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Does ambulatory blood pressure correlate with the renal function damage better than clinic blood pressure in isolated systolic hypertension, as has been reported in other target organ involvement in combined systolic/diastolic hypertension? We investigated the correlation of serum beta-2 microglobulin concentration and both 24-h urine beta-2 microglobulin concentration and excretion as measures (suggestive) of glomerular filtration rate and tubular reabsorption, respectively with both ambulatory and clinic blood pressure in 19 health normotensive (68 +/- 4.9 years) and 50 isolated systolic hypertensive elderly individuals (69 +/- 5.4 years). Serum beta-2 microglobulin concentration and 24-h urine beta-2 microglobulin concentration and excretion were higher in the isolated systolic hypertension than in the normotensive group (P < 0.05). In isolated systolic hypertensive patients, 24-h urine beta-2 microglobulin concentration and excretion were related to ambulatory blood pressure (r = 0.32-0.40, P < 0.05), but not to clinic blood pressure; waking systolic blood pressure had the strongest correlation with both 24-h urine beta-2 microglobulin concentration and excretion among derivatives of ambulatory blood pressure (r = 0.35 and 0.40, P < 0.05). We conclude that ambulatory blood pressure, especially waking systolic blood pressure, is superior to clinical blood pressure in predicting renal function impairment, in isolated systolic hypertensive patients.
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Affiliation(s)
- J Ming
- Hypertension Division, Fu Wai Hospital, Beijing, China
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22
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Zeng Y, Zhang LG, Wu YC, Huang YS, Huang NQ, Li JY, Wang YB, Jiang MK, Fang Z, Meng NN. Prospective studies on nasopharyngeal carcinoma in Epstein-Barr virus IgA/VCA antibody-positive persons in Wuzhou City, China. Int J Cancer 1985; 36:545-7. [PMID: 4055129 DOI: 10.1002/ijc.2910360505] [Citation(s) in RCA: 115] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A serological mass survey was carried out in Wuzhou City in 1980, 1,136 IgA/VCA-positive persons being followed up for 4 years. Altogether 35 NPC cases were detected, of which 15 (43%) were in stage I and 17 (48.5%) in stage II, early cases (I + II) thus amounting to 91.5%. The detection rate of early cases was 2.9 times higher than in our outpatient clinic. IgA/VCA antibody could be detected 16-41 months prior to clinical diagnosis of NPC. We conclude that, if IgA/VCA-positive individuals are examined routinely once a year, NPC can be detected in the early stages of evolution. The annual detection rate of NPC in IgA/VCA antibody-positive individuals was 31.7 times higher than that of the annual incidence of NPC in the general population in the same age group, while during the 4-year follow-up period the incidence was 7.5 times higher than in the general population for the same age group. These results further indicate that EB virus plays an important role in the development of NPC, and that serological screening and follow-up studies are valuable for the early detection of NPC.
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Zeng J, Gong CH, Jan MG, Fun Z, Zhang LG, Li HY. Detection of Epstein-Barr virus IgA/EA antibody for diagnosis of nasopharyngeal carcinoma by immunoautoradiography. Int J Cancer 1983; 31:599-601. [PMID: 6303967 DOI: 10.1002/ijc.2910310511] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An immunoautoradiographic method was used for the detection of EB virus IgA/EA antibody in sera from NPC patients and other control groups. Ninety-six percent of NPC patients had IgA/EA antibody with a high titer of GMT. The positive rates of IgA/EA antibody in patients with malignant tumours other than NPC and in normal individuals were only 4% and 0%, respectively. Eleven patients histologically diagnosed as having a chronic inflammation and who showed positive for IgA/EA antibody by immunoautoradiography were rebiopsied; six of them were discovered to have squamous cell carcinoma. Fourteen NPC patients had no IgA/EA antibody detected by immunofluorescence and immunoenzymatic testing, but 11 and six of them had IgA/VCA and IgA/EA antibodies detected by immunoautoradiography, respectively. These data indicate that the immunoautoradiographic method is more sensitive than either the immunofluorescence or immunoenzymatic test for the detection of IgA/EA antibody, and can be used for the detection of NPC in the early stages of development.
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Zeng Y, Zhang LG, Li HY, Jan MG, Zhang Q, Wu YC, Wang YS, Su GR. Serological mass survey for early detection of nasopharyngeal carcinoma in Wuzhou City, China. Int J Cancer 1982; 29:139-41. [PMID: 6895884 DOI: 10.1002/ijc.2910290204] [Citation(s) in RCA: 144] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A serological mass survey was carried out in Wuzhou City of the Guangxi Autonomous Region, China. Sera were collected from 12,932 persons between the ages of 40 and 59. The positive rate of VCA/IgA antibody-positive person was 5.3%, but no EA/IgA antibody was found in sera from VCA/Iga-negative persons. Thirteen and nine nasopharyngeal carcinoma (NPC) patients were detected from the VCA/Iga and EA/IgA antibody-positive persons, respectively. With the present combination method the detection rate of NPC for 12,932 persons was 100.5/100,000 and for 680 VCA/IgA antibody-positive persons it was 1,900/100,000. Thus, the rate was twice and 37 times higher, respectively, than the annual incidence rate of NPC in persons of the same age group from 1975-1978 in Wuzhou City. Of 13 NPC patients, 9 were in stage I (70%) and 4 in stage II (30%). Therefore, it is possible to reduce the mortality rate of NPC in Wuzhou City by radiotherapy of NPC patients in the early stage of the disease. The present results further suggest that EB virus is closely associated with NPC.
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