胞质病原体 DNA 或是线粒体 DNA 均可作为免疫原分子激活细胞的固有免疫反应。位于细胞内的模式识别受体(pattern recognition receptor,PRR),如 ZBP1(Z-DNA-binding protein 1)和 AIM2(absent in melanoma 2)等可识别哺乳动物细胞内的...胞质病原体 DNA 或是线粒体 DNA 均可作为免疫原分子激活细胞的固有免疫反应。位于细胞内的模式识别受体(pattern recognition receptor,PRR),如 ZBP1(Z-DNA-binding protein 1)和 AIM2(absent in melanoma 2)等可识别哺乳动物细胞内的胞质 DNA[1]。展开更多
Background Dengue is currently a significant global health problem but no vaccines are available against the four dengue serotypes virus infections. The development of safe and effective vaccines has been hampered by ...Background Dengue is currently a significant global health problem but no vaccines are available against the four dengue serotypes virus infections. The development of safe and effective vaccines has been hampered by the requirement of conferring complete protection against all four dengue serotypes and the lack of a convenient animal model. Virus-like particles （VLPs） have emerged as a promising subunit vaccine candidate. One strategy of vaccine development is to produce a tetravalent dengue subunit vaccine by mixing recombinant VLPs, corresponding to all four dengue virus serotypes. Towards this end, this study aimed to establish a Pichia pastoris （P. pastoris） expression system for production of dengue virus type 1 （DENV-1） VLPs and evaluate the humoral and cellular immune response of this particle in mice. Methods A recombinant yeast P. pastoris clone containing prM and E genes of DENV-1 was constructed and DENV-1 VLPs expressed by this clone were analyzed by sucrose density gradient centrifugation, Western blotting, and transmission electron microscope. Groups of mice were immunized by these particles plus adjuvant formulations, then mice were tested by ELISA and neutralization assay for humoral immune response, and by lymphocyte proliferation and cytokine production assays for a cellular immune response. Results Our data demonstrated that recombinant DENV-1 VLPs consisting of prM and E protein were successfully expressed in the yeast P. pastoris. Sera of VLPs immunized mice were shown to contain a high-titer of antibodies and the neutralization assay suggested that those antibodies neutralized virus infection in vitro. Data from the T lymphocyte proliferation assay showed proliferation of T cell, and ELISA found elevated secretion levels of interferon IFN-γ and IL-4. Conclusions P. pastoris-expressed DENV-1 VLPs can induce virus neutralizing antibodies and T cell responses in immunized mice. Using P. pastoris to produce VLPs offers a promising and economic strategy for dengue virus vaccine development.展开更多
Objective:To observe the clinical efficacy of acupuncture plus acupoint sticking for bronchial asthma in remissive state.Methods:A total of 210 cases with asthma at remissive state were randomly allocated into an acup...Objective:To observe the clinical efficacy of acupuncture plus acupoint sticking for bronchial asthma in remissive state.Methods:A total of 210 cases with asthma at remissive state were randomly allocated into an acupuncture group of 100 cases and a comprehensive therapy group of 110 cases.Cases in the acupuncture group were treated with acupuncture alone,and cases in the comprehensive therapy group were treated with acupuncture plus acupoint sticking therapy.Then the therapeutic efficacies were compared using observation indexes including wheezing,cough and coughing up phlegm,peak expiratory flow(PEF)and forced expiratory volume in one second(FEV1).In addition,the overall therapeutic efficacies were also analyzed on different traditional Chinese medicine(TCM)patterns.Results:The comprehensive therapy obtained better effects than acupuncture alone in alleviating cough and coughing up phlegm and improving PEF and FEV1;the overall efficacies on asthma due to lung-qi deficiency and spleen-qi deficiency were better than those on asthma due to kidney-qi deficiency.Conclusion:Acupuncture plus acupoint sticking is a convenient and effective therapy for asthma at remissive state and therefore worthy of being popularized.展开更多
Objective: To observe the clinical efficacy of acupoint injection at Neiguan(PC 6) plus acupuncture in treating insomnia due to heart-kidney disharmony. Methods: A hundred patients with insomnia due to heart-kidney di...Objective: To observe the clinical efficacy of acupoint injection at Neiguan(PC 6) plus acupuncture in treating insomnia due to heart-kidney disharmony. Methods: A hundred patients with insomnia due to heart-kidney disharmony were randomized into an observation group and a control group. Fifty-three cases in the observation group were intervened by acupoint injection at Neiguan(PC 6) plus acupuncture; while 54 cases in the control group were intervened by acupuncture alone. The Pittsburgh sleep quality index(PSQI) was evaluated before and after intervention, and the therapeutic efficacies of the two groups were compared. Results: Acupoint injection at Neiguan(PC 6) plus acupuncture produced significantly higher efficacies in improving sleep quality, shortening sleep latency, and enhancing sleep efficiency than acupuncture alone(P<0.05).Conclusion: The two groups both can improve the condition of insomnia; acupoint injection at Neiguan(PC 6) has significant advantages, manifested by a higher therapeutic efficacy for insomnia due to heart-kidney disharmony, higher safety evaluation, efficiency, and less adverse events, thus proper for clinical application.展开更多
Objective: To invent a novel animal experimentation moxa device and intend to solve temperature fluctuations during moxa stick burning in animal moxibustion test. Methods: Smokeless moxa sticks of 4 mm in diameter and...Objective: To invent a novel animal experimentation moxa device and intend to solve temperature fluctuations during moxa stick burning in animal moxibustion test. Methods: Smokeless moxa sticks of 4 mm in diameter and 120 mm in length were selected in this trial. The target temperature was(47±1) ℃. The burning temperature versus time graph of moxa sticks during un-interfered time period were recorded when the distances between moxa sticks and thermometer were 2 mm, 3 mm and 4 mm respectively. In addition, the total lengths of burned moxa stick ashes within 0-5 min were recorded. Then the moxa stick burning temperature versus time graph after intervention was measured. Results: The maximum temperatures during test duration when the distances were 2 mm, 3 mm and 4 mm were(47.37±0.25) ℃,(42.62±2.05) ℃ and(35.50±0.40) ℃respectively the total lengths of burned ashes from 0-5 min were(5.1±0.08) mm,(12.17±0.44) mm,(14.8±0.31) mm,(17.25±0.17) mm and(19.82±0.67) mm respectively with a distance of 2 mm between a moxa stick and the testing area, remove 5 mm ashes every 2 min, then the maximum and minimum temperatures within 10 min were(48.37±0.47) ℃and(47.12±0.25) ℃, showing no statistical significance(P=0.12). Conclusion: The novel animal experimentation moxa device can help to maintain relatively constant moxa stick burning temperature during test period.展开更多
文摘胞质病原体 DNA 或是线粒体 DNA 均可作为免疫原分子激活细胞的固有免疫反应。位于细胞内的模式识别受体(pattern recognition receptor,PRR),如 ZBP1(Z-DNA-binding protein 1)和 AIM2(absent in melanoma 2)等可识别哺乳动物细胞内的胞质 DNA[1]。
基金This work was supported by grants from the National Science Foundation （No. U0632002） and National High Technology Research Development Program of China （No. 2006AA02A223）.
文摘Background Dengue is currently a significant global health problem but no vaccines are available against the four dengue serotypes virus infections. The development of safe and effective vaccines has been hampered by the requirement of conferring complete protection against all four dengue serotypes and the lack of a convenient animal model. Virus-like particles （VLPs） have emerged as a promising subunit vaccine candidate. One strategy of vaccine development is to produce a tetravalent dengue subunit vaccine by mixing recombinant VLPs, corresponding to all four dengue virus serotypes. Towards this end, this study aimed to establish a Pichia pastoris （P. pastoris） expression system for production of dengue virus type 1 （DENV-1） VLPs and evaluate the humoral and cellular immune response of this particle in mice. Methods A recombinant yeast P. pastoris clone containing prM and E genes of DENV-1 was constructed and DENV-1 VLPs expressed by this clone were analyzed by sucrose density gradient centrifugation, Western blotting, and transmission electron microscope. Groups of mice were immunized by these particles plus adjuvant formulations, then mice were tested by ELISA and neutralization assay for humoral immune response, and by lymphocyte proliferation and cytokine production assays for a cellular immune response. Results Our data demonstrated that recombinant DENV-1 VLPs consisting of prM and E protein were successfully expressed in the yeast P. pastoris. Sera of VLPs immunized mice were shown to contain a high-titer of antibodies and the neutralization assay suggested that those antibodies neutralized virus infection in vitro. Data from the T lymphocyte proliferation assay showed proliferation of T cell, and ELISA found elevated secretion levels of interferon IFN-γ and IL-4. Conclusions P. pastoris-expressed DENV-1 VLPs can induce virus neutralizing antibodies and T cell responses in immunized mice. Using P. pastoris to produce VLPs offers a promising and economic strategy for dengue virus vaccine development.
基金supported by the Third Shanghai Municipal Priority Subspecialty(Special Diseases)Construction ProjectShanghai TCM Groups and Special Technique Support Project
文摘Objective:To observe the clinical efficacy of acupuncture plus acupoint sticking for bronchial asthma in remissive state.Methods:A total of 210 cases with asthma at remissive state were randomly allocated into an acupuncture group of 100 cases and a comprehensive therapy group of 110 cases.Cases in the acupuncture group were treated with acupuncture alone,and cases in the comprehensive therapy group were treated with acupuncture plus acupoint sticking therapy.Then the therapeutic efficacies were compared using observation indexes including wheezing,cough and coughing up phlegm,peak expiratory flow(PEF)and forced expiratory volume in one second(FEV1).In addition,the overall therapeutic efficacies were also analyzed on different traditional Chinese medicine(TCM)patterns.Results:The comprehensive therapy obtained better effects than acupuncture alone in alleviating cough and coughing up phlegm and improving PEF and FEV1;the overall efficacies on asthma due to lung-qi deficiency and spleen-qi deficiency were better than those on asthma due to kidney-qi deficiency.Conclusion:Acupuncture plus acupoint sticking is a convenient and effective therapy for asthma at remissive state and therefore worthy of being popularized.
基金supported by Famous Traditional Chinese Medicine Doctor Construction Project of Yan Jun-bai’s Academic Experience Work Room (No. ZYSNXD-CCMZY023)
文摘Objective: To observe the clinical efficacy of acupoint injection at Neiguan(PC 6) plus acupuncture in treating insomnia due to heart-kidney disharmony. Methods: A hundred patients with insomnia due to heart-kidney disharmony were randomized into an observation group and a control group. Fifty-three cases in the observation group were intervened by acupoint injection at Neiguan(PC 6) plus acupuncture; while 54 cases in the control group were intervened by acupuncture alone. The Pittsburgh sleep quality index(PSQI) was evaluated before and after intervention, and the therapeutic efficacies of the two groups were compared. Results: Acupoint injection at Neiguan(PC 6) plus acupuncture produced significantly higher efficacies in improving sleep quality, shortening sleep latency, and enhancing sleep efficiency than acupuncture alone(P<0.05).Conclusion: The two groups both can improve the condition of insomnia; acupoint injection at Neiguan(PC 6) has significant advantages, manifested by a higher therapeutic efficacy for insomnia due to heart-kidney disharmony, higher safety evaluation, efficiency, and less adverse events, thus proper for clinical application.
基金supported by Special Project for Laboratory Animals, Shanghai Municipal Science and Technology Commission (No.11140900902)
文摘Objective: To invent a novel animal experimentation moxa device and intend to solve temperature fluctuations during moxa stick burning in animal moxibustion test. Methods: Smokeless moxa sticks of 4 mm in diameter and 120 mm in length were selected in this trial. The target temperature was(47±1) ℃. The burning temperature versus time graph of moxa sticks during un-interfered time period were recorded when the distances between moxa sticks and thermometer were 2 mm, 3 mm and 4 mm respectively. In addition, the total lengths of burned moxa stick ashes within 0-5 min were recorded. Then the moxa stick burning temperature versus time graph after intervention was measured. Results: The maximum temperatures during test duration when the distances were 2 mm, 3 mm and 4 mm were(47.37±0.25) ℃,(42.62±2.05) ℃ and(35.50±0.40) ℃respectively the total lengths of burned ashes from 0-5 min were(5.1±0.08) mm,(12.17±0.44) mm,(14.8±0.31) mm,(17.25±0.17) mm and(19.82±0.67) mm respectively with a distance of 2 mm between a moxa stick and the testing area, remove 5 mm ashes every 2 min, then the maximum and minimum temperatures within 10 min were(48.37±0.47) ℃and(47.12±0.25) ℃, showing no statistical significance(P=0.12). Conclusion: The novel animal experimentation moxa device can help to maintain relatively constant moxa stick burning temperature during test period.
