1.Current situation and development trend of POCT in cardiovascular disease
Chinese Journal of Laboratory Medicine 2013;(6):494-497
Cardiovascular disease (CVD) is one of the most common diseases and the leading causes of death in China.It is of great importance to detect cardiac markers for early diagnosis,treatment and prognosis of CVD.Point of care testing (POCT) is emerging as a new test mode and development trend of laboratory medicine.Application of POCT technology in cardiovascular field is the fastest growing parts of all POCT.It promotes the application and development of POCT because of the contradiction between the important value of cardiac markers and the needs of quick results in severe CVD.With the technological diversification of POCT,the progressing innovation of test devise and standardized test results with reference to the Central Laboratory (CLT),the application of POCT will be more extensive and promote the development of laboratory medicine together with traditional test mode.
2.Application and development of point-of-care testing in domain of tumor markers
Lahong ZHANG ; Yuhua LIU ; Zhaojun CHEN
Chinese Journal of Laboratory Medicine 2014;(11):808-811
Malignant tumors are the most common lethal diseases in China.Because of complexity of etiology and pathogenesis , and the lack of specific markers for early diagnosis , delayed diagnosis and treatment of cancer , the fatality rate is high.With the development of basic research , more and more early specific markers were found , but the current detection mostly depend on the professional laboratories , time-consuming , high price and have a number of inconveniences to patients on time and money.Meanwhile , it′s difficult to extend to zoon of medicine resources deficient.Recently, point-of-care testing (POCT) has been rapidly developed , because of its portability , getting results quickly , can be operated in basic medical units and economic backward areas , so it′s benefit to cancer screening in human.By the application in tumor markers, POCT can be done for the cancer early detection , early diagnosis and early treatment , so then cuts the death rate.
3.Main issues, causes and strategies for AIDS prevention and control in health care systems
Peng XU ; Dapeng ZHANG ; Fuchang MA ; Liping MA ; Lahong JU ; Wanying CHEN ; Lin HAN ; Fan LV
Chinese Journal of Health Policy 2014;(10):68-72
Objective:To summarize the main issues, analyze the causes and offer a strategy for AIDS preven-tion and control for all types of healthcare facilities in the health care system. Methods:184 leaders and experts of tertiary-level healthcare facilities ( provinces, cities and counties) from 30 provinces who had been engaged in AIDS prevention and control for more than five years were studied through a questionnaire including the issues and causes in AIDS prevention and control. Results: According to the results of the respondents and experts’ demonstration, the main issues were identified, including a lack of human resources in the system of disease control facilities, a lack of relevant agencies involved in AIDS response, the difficulty for AIDS patients to receive surgery and follow-up, poor detection of HIV, shortcomings in medical insurance, and so on. Conclusion: Based on the analysis of issues and causes, the paper offers strategic solutions: Clearly define the responsibilities of various health institutions in AIDS prevention and control;promote the participation of primary health institutions in AIDS prevention and control; im-prove the medical service system for AIDS patients;improve AIDS medical security policies;reform the management system of antiretroviral therapy drugs;and strengthen technical support from disease control facilities.
4.Study on the immunosuppressive activities of myeloid derived suppressor cells in patients suffering from recurrent spontaneous abortion
Yuhua LIU ; Zhaojun CHEN ; Lahong ZHANG ; Feng PAN ; Xiaoyin ZHENG ; Yuan YUAN ; Yang LIU
Chinese Journal of Microbiology and Immunology 2015;(6):448-452
normal pregnancy and RSA (P=0.0250).Compared with women with normal pregnancy, those with RSA showed significantly decreased levels of Arg-1 ( P=0.0474) and suppressed activities of MDSCs against CD8+T cell proliferation (P=0.0230).Conclusion The MDSCs might play an important role in the main-tenance of maternal immune tolerance.Decreased number and inhibited function of MDSCs in the peripheral blood of women with RSA might be responsible for the development of RSA.
5.Effects of an anti-CD86 chimeric antibody (ch1D1) on autoreactive B lymphocytes isolated from pa-tients with SLE
Yuhua LIU ; Zhaojun CHEN ; Jie HAN ; Feng PAN ; Juzhen YAN ; Lahong ZHANG ; Xiaoyin ZHENG ; Yang LIU
Chinese Journal of Microbiology and Immunology 2016;36(7):481-486
Objective To investigate the effects of ch1D1, an anti-CD86 chimeric antibody, on autoreactive B lymphocytes isolated from patients with systemic lupus erythematosus ( SLE) . Methods Flow cytometry analysis was performed to measure the expression of CD86 on the surface of B cells isolated from patients with SLE and to analyze the effects of ch1D1 on the activation of CD4+T cells. The method of magnetic bead sorting was used to separate B cells, NK cells and CD4+T cells from PBMC collected from healthy subjects and patients with SLE for subsequent experiments. Antibody-dependent cell-mediated cyto-toxicity (ADCC) and complement-dependent cytotoxicity (CDC) that were mediated by ch1D1 were meas-ured with LDH release assay. Effects of ch1D1 on the secretion of auto-antibodies and the proliferation of CD 4+ T were detected by ELISA and 3 H -thymidine ( 3 H-TdR) incorporation assay, respectively. Results The levels of CD80 (68. 08±14. 28 vs 46. 10±12. 14, n=24, P<0. 000 1) and CD86 (44. 72±14. 90 vs 13. 99±10. 74, n=24, P<0. 000 1) expressed on the surface of B cells isolated from patients with SLE were significantly higher than those from the healthy subjects, suggesting the abnormal activation of B cells. Com-pared with the negative control group and the murine monoclonal antibody 1D1, ch1D1 was more effective in mediating the ADCC and CDC responses (P=0. 017 2, P=0. 038 8). Activated T cells significantly en-hanced the secretion of auto-antibodies by B cells isolated from patients with SLE. Compared with the nega-tive control group, the enhanced secretion of auto-antibodies was significantly inhibited by treatment with ch1D1 (P=0. 001 9). Moreover, ch1D1 significantly inhibited the proliferation and activation of CD4+T cells induced in patients with SLE (P=0. 002 4, P=0. 049 5). Conclusion ch1D1, the anti-CD86 chim-eric antibody, could effectively mediate the ADCC and CDC responses against autoreactive B cells isolated from patients with SLE, inhibit the secretion of auto-antibodies and suppress the proliferation and activation of auto-reactive CD4+T cells. It might be a potential immunotherapy agent for the treatment of SLE.
6.The application of SAT for diagnosing in pulmonary tuberculosis patients
Xian LUO ; Lahong ZHANG ; Liquan HONG ; Jintian XU ; Xia LIU ; Liqun XU ; Zhaojun CHEN
Chinese Journal of Experimental and Clinical Virology 2015;29(2):183-185
Objective To evaluate the value of simultaneous amplification and testing method for diagnosing in patients with pulmonary tuberculosis.Methods Total of 277 sputum samples were detected by SAT,Lowenstein-Jensen (L-J) culture and Ziehl-neelsen staining.Chi-square test was used to compare and analysis the statistical difference in positive detection rates.The sensitivity,specificity,positive predictive value (PPV) and negative predictive value (NPV) of SAT for early diagnosing and judging curative effect were calculated respectively when the clinical diagnosis and L-J culture used as its reference standard.Results The positive detection rates of the three methods for detecting Mycobacterium tuberculosis from the 277 sputum samples were 47.3% (131/277),30.3% (84/277),29.6% (82/277),there was a significant difference between SAT and L-J culture(x2 =16.8,P < 0.05)and Ziehl-neelsen(X2 =18.3,P < 0.05)by chi-square test.Before treatment was commenced,using clinical diagnosis as its reference,the sensitivity,specificity,PPV and NPV of SAT were 59.0% (95/161),97.4% (37/38)、99.0% (95/96) and 35.9% (37/103) ; After intensive treatment was over,taking culture as its standard,the results were 11/11,64.2% (43/67),31.4% (11/35),100% (43/43).Conclusions SAT can be useful for early diagnosis of clinically suspicious TB case,it has a more sensitive detecting values of SAT for living bacilli and a shorter test period,which implied it can help judging the response to anti-TB treatment.
7.Quality of life and its related factors among HIV/AIDS patients from HIV serodiscordant couples in ;Zhoukou of Henan province
Liping MA ; Peng XU ; Dingyong SUN ; Ning LI ; Wenjie YANG ; Lin ZHANG ; Yujie BAI ; Lahong JU ; Huijing HE ; Wanying CHEN ; Fan LYU
Chinese Journal of Preventive Medicine 2016;50(4):339-345
Objective To investigate the quality of life and its related factors among HIV/AIDS patients from HIV serodiscordant couples in Zhoukou city of Henan province.Methods During January to May in 2015, by the convenience sample, World Health Organization Quality of Life Questionnaire for Brief Version (WHOQOL?BREF) (Chinese version) and a self?edited questionnaire were used to investigate 1 251 HIV/AIDS patients who were confirmed with HIV positive by local CDC, registered in“HIV serodiscordant family”and agreed to participate in a face?to?face interview with above 18 year?old based on the local CDC , township hospitals and village clinics of 9 counties and 1 district of Zhoukou city, excluding the HIV/AIDS patients who were in divorce, death by one side, unknowing about his HIV status, with mental illness and disturbance of consciousness, incorrectly understanding the content of the questionnaire, and reluctant to participate in this study. The scores of quality of life of physical, psychological, social relations, and environmental domain were calculated. The related factors of the scores of different domains were analyzed by Multiple Two Classification Unconditioned Logistic Regression. Results The scores of investigation objects in the physical, psychological, social relations, and environmental domain were 12.00± 2.02, 12.07 ± 2.07, 11.87 ± 1.99, and 11.09 ± 1.84, respectively. The multiple Unconditioned Logistic Regression analysis indicated that age <40 years, on ART and no other sickness in last two weeks were beneficial factors associated with physical domain with OR (95%CI): 0.61 (0.35-1.06), 0.52 (0.30-0.90), and 1.66 (1.09-2.52), respectively. The possibility of no poverty and no other sickness in last two weeks increased to 0.15(0.09-0.26) and 1.57(1.06-2.33) times of those who was in poverty and with other sickness in last two weeks in physical domain. The possibility of participants who were below 40 years old and with children increased to 0.58 (0.34-0.98) and 0.37 (0.23-0.57) times of who were above 40 years old and without children in psychological domain. The factors of with AIDS related symptoms, no children and with other sickness in last two week were found to be significantly associated with environmental domain with OR (95%CI):0.65 (0.48-0.88), 0.66 (0.51-0.85), and 0.65 (0.51-0.84), respectively . Conclusion The scores of every domain of quality of life in HIV serodiscordant couples of Zhoukou city were good. Age, whether having AIDS related symptoms, whether to accept ART , children, status of poverty, and whether suffering from other diseases in last two weeks were the main factors associated with the quality of life .
8.Quality of life and its related factors among HIV/AIDS patients from HIV serodiscordant couples in ;Zhoukou of Henan province
Liping MA ; Peng XU ; Dingyong SUN ; Ning LI ; Wenjie YANG ; Lin ZHANG ; Yujie BAI ; Lahong JU ; Huijing HE ; Wanying CHEN ; Fan LYU
Chinese Journal of Preventive Medicine 2016;50(4):339-345
Objective To investigate the quality of life and its related factors among HIV/AIDS patients from HIV serodiscordant couples in Zhoukou city of Henan province.Methods During January to May in 2015, by the convenience sample, World Health Organization Quality of Life Questionnaire for Brief Version (WHOQOL?BREF) (Chinese version) and a self?edited questionnaire were used to investigate 1 251 HIV/AIDS patients who were confirmed with HIV positive by local CDC, registered in“HIV serodiscordant family”and agreed to participate in a face?to?face interview with above 18 year?old based on the local CDC , township hospitals and village clinics of 9 counties and 1 district of Zhoukou city, excluding the HIV/AIDS patients who were in divorce, death by one side, unknowing about his HIV status, with mental illness and disturbance of consciousness, incorrectly understanding the content of the questionnaire, and reluctant to participate in this study. The scores of quality of life of physical, psychological, social relations, and environmental domain were calculated. The related factors of the scores of different domains were analyzed by Multiple Two Classification Unconditioned Logistic Regression. Results The scores of investigation objects in the physical, psychological, social relations, and environmental domain were 12.00± 2.02, 12.07 ± 2.07, 11.87 ± 1.99, and 11.09 ± 1.84, respectively. The multiple Unconditioned Logistic Regression analysis indicated that age <40 years, on ART and no other sickness in last two weeks were beneficial factors associated with physical domain with OR (95%CI): 0.61 (0.35-1.06), 0.52 (0.30-0.90), and 1.66 (1.09-2.52), respectively. The possibility of no poverty and no other sickness in last two weeks increased to 0.15(0.09-0.26) and 1.57(1.06-2.33) times of those who was in poverty and with other sickness in last two weeks in physical domain. The possibility of participants who were below 40 years old and with children increased to 0.58 (0.34-0.98) and 0.37 (0.23-0.57) times of who were above 40 years old and without children in psychological domain. The factors of with AIDS related symptoms, no children and with other sickness in last two week were found to be significantly associated with environmental domain with OR (95%CI):0.65 (0.48-0.88), 0.66 (0.51-0.85), and 0.65 (0.51-0.84), respectively . Conclusion The scores of every domain of quality of life in HIV serodiscordant couples of Zhoukou city were good. Age, whether having AIDS related symptoms, whether to accept ART , children, status of poverty, and whether suffering from other diseases in last two weeks were the main factors associated with the quality of life .