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Copyright of Chinese Journal of Dermatovenereology is the property of Xi'an Jiaotong University Periodicals Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Dermatovenereology is the property of Xi'an Jiaotong University Periodicals Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

OBJECTIVE: To explore the efficacy of carbon dioxide fractional laser combined with compound betamethasone in the treatment of vitiligo and its effects on Th17-related cytokines. METHODS: Totally 90 patients with vitiligo admitted into the hospital from Jan. 2018 to Jan. 2020 were extracted to be divided into the control group Ⅰ (carbon dioxide fractional laser), control group Ⅱ ( compound betamethasone) and combination therapy group (carbon dioxide fractional laser combined with compound betamethasone) via the random number table method, with 30 cases in each group. The efficacy and Th17-related cytokines were compared. RESULTS: There was no statistically significant difference in adverse drug reactions among the combination therapy group, control group Ⅰ and control group Ⅱ [13. 33%(4 / 30),10. 00%(3 / 30) and 6. 67%(2 / 30),P>0. 05]. Difference of recovery time of white spots on face-neck, limbs and hands-feet in combination therapy group, control group Ⅰ and control group Ⅱ was statistically significant (P<0. 05). The recovery time of white spots on face-neck, limbs and hands-feet in combination therapy group was significantly shorter than that in control group Ⅰ and control group Ⅱ, with statistically significant difference (P< 0. 05). After treatment, the levels of interleukin( IL)-17, IL-22 and IL-23 in combination therapy group, control group Ⅰ and control group Ⅱ had statistical significance (P<0. 05), and the levels of IL-17, IL-22 and IL-23 in combination therapy group were significantly lower than those in control group Ⅰ and control group Ⅱ, with statistically significant difference (P<0. 05). The effective rate of combination therapy group, control group Ⅰ and control group Ⅱ was respectively 90. 00% (27 / 30), 63. 33% (19 / 30) and 56. 67% (17 / 30), the effective rate of combination therapy group was significantly higher than that of control group Ⅰ and control group Ⅱ, with statistically significant difference ( P < 0. 05 ). CONCLUSIONS: The efficacy of carbon dioxide fractional laser combined with compound betamethasone in the treatment of vitiligo is significant, which can reduce the levels of serum Th17 cell related cytokines such as IL-17, IL-22 and IL-23. [ABSTRACT FROM AUTHOR]

In this paper an impedance composite control method based on disturbance observer is proposed for manipulator system with unknown disturbances. For tracking the second order impedance dynamic model a composite control strategy is designed,which includes the disturbance observer (DOB),the impedance controller, and the position controller to estimate unknown disturbances, correct input angle, and track the adjusted angle, respectively. This composite control strategy ensures that the impedance error converges to a small neighborhood, thus realizes the desired dynamic tracking of the second order impedance model. The effectiveness of the proposed control method is proved by simulation examples. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Aesthetic & Plastic Surgery is the property of Chinese Journal of Aesthetic & Plastic Surgery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Aesthetic & Plastic Surgery is the property of Chinese Journal of Aesthetic & Plastic Surgery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Tropical Medicine is the property of China Tropical Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

For high-order multi-agent systems with nonlinear dynamics,consensus algorithms and adaptive laws based on observer mechanism are proposed in the paper.Additionally,history information of agent's states are added in consensus algorithms.Furthermore,parameter gains are decided by adaptive control laws.By applying the Lyapunov function,stability theory,graph theory and linear matrix inequalities techniques,sufficient consensus conditions for multi-agent systems are obtained.Finally,results of numerical examples are used to verify the effectiveness of the proposed algorithms. [ABSTRACT FROM AUTHOR]