Search

多模态教学利用多种意义符号创设多模态语境，调动学生的多种感官来建构教学活动，激发学 习兴趣，有助于提高课堂教学效率和学习效果。本文从立法汉语语料库中选取名词，探究不同 语义类名词的多模态教学。本研究丰富了多模态在专门用途汉语教学中的应用，对法律语言教 学有指导意义。

通过对激光外调制不同方式的对比分析,重点研究了AOM（声光调制）器件的原理及控制方法,提出了三种可控调制方法,且在控制方面分别进行了对比验证。采用其中的TTL电平（典型值高电平3.5V,低电平0.2V）调控方法,将数字信号经FPGA（现场可编程门阵列）以2FSK（二进制移频键控）方式进行调制编码,调制信号通过AOM加载于激光上,激光通过自由空间传输,借助串口实现了通信速率为115.2kbit/s的数字通信,且该激光外调制通信系统高频载波达到了0.7MHz左右。

设计了一种基于PSK（相移键控）外调制的激光通信系统。该系统选用637nm的全固态激光器作为光源,利用FPGA（现场可编程门阵列）开发板作为调制解调硬件控制声光调制器将调制信号加载于激光,通过大气信道传输,采用光电倍增管作为激光接收器。对传统PSK解调进行了改进,消除了相位模糊现象,搭建了完整的激光通信系统实验平台。实现了通信速率为115.2kbit/s、误码率低于10-8的激光通信系统。

Copyright of International Journal of Chinese Language Teaching is the property of Clifford Publishing 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 Food Research & Development is the property of Food Research & Development Editorial Department 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.)

In order to study the change rule of frost resistance of carbon nanofiber concrete under the action of salt-freeze-thaw cycle, the concrete specimens with four different carbon nanofibers （CNFs） mass admixture （0, 0. 1%, 0. 2%, 0. 3%） were subjected to rapid freeze-thaw cycling test using 3. 5% NaCl solution as the freezing and thawing cycling medium. The fiber modification mechanism was analyzed by scanning electron microscopy, X-ray diffraction, nitrogen adsorption and other microscopic technical means. Moreover, a freeze-thaw damage model was developed to evaluate the damage evolution of carbon nanofiber concrete under salt-freeze-thaw cycling conditions. The results indicated that CNFs could improve the salt-frost resistance of concrete, and the improvement effect was positively correlated with the dosage, and the freezing-resistance grade and durability index were increased by 100% compared with the baseline group at a mass dosage of 0. 3 %. CNFs enhanced the compactness of concrete by bridging cracks, controlling nanoscale cracks, nucleation, and improving pore structure, which in turn improved the salt-frost resistance of concrete. The freeze-thaw damage models established based on different evaluation indexes conform to the Weibull distribution and had R² greater than 0. 9, which can be used for evaluating and predicting the damage of carbon nanofiber concrete under salt-freeze-thaw cycle conditions. [ABSTRACT FROM AUTHOR]

Copyright of Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction 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 Food Research & Development is the property of Food Research & Development Editorial Department 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 Zhejiang Electric Power is the property of Zhejiang Electric Power 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 Rehabilitation Medicine is the property of China Association of Rehabilitation Medicine, China-Japan Friendship Hospital 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 Applied Chemical Industry is the property of Shaanxi Research Design Insitute of Petroleum & Chemical Industry 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 Cotton Textile Technology is the property of Cotton Textile Technology 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 Diabetes Mellitus is the property of Chinese Journal of Diabetes Mellitus 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 Journal of China University of Petroleum is the property of China University of Petroleum 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 Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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 Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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 investigate the effect of dexamethasone combined with ropivacaine ESP block on pain in elderly patients after radical mastectomy for breast cancer. Methods: A total of 110 elderly female patients who underwent elective radical mastectomy for breast cancer in Shiyan Dongfeng General Hospital, Hubei Province from September 2020 to May 2023were selected as the research subjects. They were divided into ESP group and control group according to random number table, with 55 cases in each group. The control group received general anesthesia, while ESP group received ESP block. The two groups were compared on perioperative indicators, NRS scores in resting state at 1 h, 6 h, 12 h, 24 h and 48 h after operation, serum 5-hydroxytryptamine (5-HT) and prostaglandin E2 (PGE2) levels before and after operation, and occurrence of postoperative adverse reactions. Results: Comparison between the groups found that operation time and ambulation time of ESP group was significantly shorter(P<0.05). Intraoperative blood loss of ESP group was less(P>0.05). NRS scores of both groups gradually increased and then decreased at 1 h, 6 h, 12 h, 24 h and 48 h after operation. The NRS score of ESP group was lower than that of the control group at each time point. The decreases in ESP group were significantly greater than those in control group over time. There were statistically significant differences in NRS scores in terms of inter-group effect, time effect and interaction effect(P<0.05). After operation, serum 5-HT and PGE2 levels in ESP group were significantly lower (P<0.05). The incidence rates of dizziness, nausea and vomiting, and skin pruritus were lower in ESP group, but there was no statistically significant difference compared to control group(P>0.05). Conclusion: Applying dexamethasone combined with ropivacaine ESP block to elderly patients undergoing radical mastectomy for breast cancer can effectively alleviate postoperative pain. The analgesic effect may be related to reduction of 5-HT and PGE2 levels. In addition, this analgesic mode is highly safe. [ABSTRACT FROM AUTHOR]

Copyright of International Journal of Chinese Language Teaching is the property of Clifford Publishing 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 Osteoporosis is the property of Chinese Journal of Osteoporosis 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 Science & Technology of Food Industry is the property of Science & Technology of Food Industry 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 Journal of Engineering Geology / Gongcheng Dizhi Xuebao is the property of Journal of Engineering Geology 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 Journal of Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical 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 University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering 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 Engineering Science Research & Application is the property of Omniscient Pte. Ltd. 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 Food Research & Development is the property of Food Research & Development Editorial Department 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.)

Intellectual property security is the main battlefield of national security, and strengthening intellectual property security review is an important measure to protect national security and improve intellectual property security protection in the field of intellectual property. In the new era, the security review mechanism of intellectual property rights transfer and its implementation are facing double pressures worldwide, which need to be further adjusted and improved. This study analyzes the institutional games and challenges brought about by the changes in the international situation of intellectual property rights transfer, clarifies the requirements of the current overall national security concept and the strategy of self-reliance and self-reliance in science and technology for intellectual property rights transfer, sorts out many problems existing in the security review mechanism and specific implementation of intellectual property rights transfer, and puts forward the optimization ideas for improving the security review system and implementing the system. In theory, the institutional dilemma of the security review mechanism of intellectual property rights transfer abroad is clarified, which can provide research reference for the security review of intellectual property rights transfer in China in practice. [ABSTRACT FROM AUTHOR]

The aim of this study was to develop heat-tolerant cellulase enzymes to improve the utilization rate of cellulosic feed and the economic benefits of livestock and poultry. The sequence information of an exonuclease CelS from Clostridium thermocellum was obtained from the protein information database UniProt, and the overexpression of CelS was achieved by signal peptide deletion and codon optimization, and the expression system of Escherichia, coli was used. Through the optimization of self-induced expression conditions, the proportion of soluble expression of CelS was effectively increased. The intracellular supernatant was separated and purified by nickel ion affinity chromatography and heat treatment to obtain soluble CelS, and the intracellular precipitate was washed, denatured and renatured to obtain inclusion body renatured CelS. The enzymatic characteristics showed that there was no significant difference in the enzyme activities of the two forms of CelS, the optimal reaction temperature was 70 贮, the optimal reaction pH was 5.5-6.0, and the activity of amorphous cellulose (PASC) was the highest, followed by crystalline cellulose (Avicel) and corn stover (CS). CelS and EG12B synergistically hydrolyzed CS with Thermotoga maritima, which increased the activity of hydrolase by 81.8% compared with hydrolase alone. The results showed that recombinant CelS exhibited superior heat tolerance and cellulose hydrolysis activity, which provided strong support for the further development of enzyme preparations, and was conducive to improving the utilization rate of cellulose feed. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To observe the neuroregulatory effects of Chaihu Shugan powder and Banxia Houpo decoction combined with Wuxing acupuncture on anxiety and depression after stroke and its effects on immune inflammatory response, cognitive function impairment, hypothalamic-pituitary-gonadal axis (HPG) and hypothalamicpituitary-thyroid axis (HPT). METHODS: A total of 102 patients with post-stroke anxiety and depression admitted into the hospital from Mar. 2021 to May 2023 were extracted to be divided into 51 cases in the Wuxing acupuncture group (2 cases were shed and 49 cases were eventually included), and 51 cases in the prescription combination group (2 cases were shed and 49 cases were eventually included) according to the random number table method. Both groups were given conventional Western medicine basic treatment, the Wuxing acupuncture group received Wuxing acupuncture treatment based on the conventional Western medicine basic treatment, and the prescription combination group was treated with Chaihu Shugan powder and Banxia Houpo decoction on the basis of the Wuxing acupuncture group. Clinical efficacy of two groups was compared. Traditional Chinese medicine syndrome score, Mini-Mental State Examination ( MMSE) score, Generalized Anxiety Disorder Scale ( GAD-7) score, Hamilton Depression Scale (HAMD) score and Quality of Life Enjoyment and Satisfaction Questionnaire, Short Form (Q-LES-Q-SF) score of two groups before and after treatment were compared. Serum levels of nerve growth factor ( NGF), interleukin-1β (IL-1β), glial fibrillary acidic protein (GFAP), interleukin-17A (IL-17a), thyroid stimulating hormone (TSH), 5-hydroxytryptamine (5-HT) and estradiol 2 (E2) were measured before and after treatment. RESULTS: The total effective rate of the prescription combination group was 97. 96% (48/49), higher than 81. 63% (40/49) of the Wuxing acupuncture group, the difference was statistically significant (P < 0. 05). After treatment, the scores of anxiety and depression, epigastric fullness, chest and hypochondriac distension, frequent sighing in the prescription combination group were lower than those in the Wuxing acupuncture group, the scores of HAMD and GAD-7 were lower than those in Wuxing acupuncture group, and the scores of MMSE and Q-LES-Q-SF were higher than those in Wuxing acupuncture group, with statistically significant differences (P<0. 05). After treatment, levels of of IL-1β, IL-17a and GFAP in prescription combination group were lower than those in Wuxing acupuncture group, and levels of NGF in prescription combination group were significantly higher than those in Wuxing acupuncture group, levels of 5-HT, E2 and TSH in prescription combination group were higher than those in Wuxing acupuncture group, with statistically significant differences (P<0. 05). CONCLUSIONS: Chaihu Shugan powder and Banxia Houpo decoction combined with Wuxing acupuncture in the treatment of patients with post-stroke anxiety and depression can reduce the immune inflammatory response and neurological and cognitive function damage, regulate HPG and HPT, improve anxiety and depression, relieve the disease, improve quality of life and clinical efficacy. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Bioprocess Engineering is the property of Chinese Journal of Bioprocess Engineering 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 Acta Prataculturae Sinica is the property of Acta Prataculturae Sinica 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 Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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 Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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 Ecological Science is the property of Ecological Science 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 Food Research & Development is the property of Food Research & Development Editorial Department 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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 Science Technology & Engineering is the property of Chinese Society of Technology Economics 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 Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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 Food Research & Development is the property of Food Research & Development Editorial Department 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 Journal of Refrigeration is the property of Journal of Refrigeration 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 Bulletin of Botanical Research is the property of Bulletin of Botanical Research Editorial Department 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 Acta Geoscientica Sinica is the property of Acta Geoscientica Sinica 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 Arid Land Geography is the property of Chinese Academy of Sciences, Xinjiang Institute of Ecology & Geography 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 Journal of Nanjing Medical University: Social Sciences is the property of Journal of Nanjing Medicial University (NMU) Medical Publications 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.)

The balanced design method (BDM) upholds the concept of mixture performance balance, and provides a new direction in the field of mix design for enhancing the performance of hot-in-place recycled mixtures. In order to explore the effectiveness of BDM in the field of heat-in-place regeneration, BDM of heat-in-place regeneration was adopted to design the mix ratio of three kinds of heatregenerated asphalt mixtures with high content of reclaimed asphalt pavement(RAP). And compared with the Marshall design method (MDM), the road performance analysis was carried out. The optimal amount of recycling agent was determined based on rheological performance indicators, and the optimal asphalt content was determined through high and low temperature performance tests of asphalt mixtures. The applicability of two design methods in in-situ geothermal recycling technology was studied through multiple types of road performance tests. The results show that the optimal asphalt content of BDM is higher than that of MDM at each RAP content, the road performance of the balanced mixture can meet the requirements of the specification. Low temperature performance does not meet specification requirements. Although BDM weakens the high temperature performance of the mixture, the higher the RAP content, the lower the effect. And BDM can better ensure the low temperature, fatigue and water stability performance of the mixture than MDM, and significantly enhance the comprehensive performance of the hot-in-place recycled mixture. Therefore, BDM is more suitable for the hot-inplace regeneration technology than MDM. [ABSTRACT FROM AUTHOR]

Objective To investigate the effect and mechanism of puerarin on steroid-induced osteonecrosis of the femoral head (ONFH) in rabbits by regulating the expression of miR-30b-5p. Methods A total of 84 New Zealand white rabbits were grouped into a control group, ONFH group, low-dose puerarin group, high-dose puerarin group, positive control group, high-dose puerarin +antagonist NC group, and high-dose puerarin+miR-30b-5p antagonist group, with 12 rabbits in each group. Micro CT was applied to detect the number, thickness, and separation of trabeculae in the femoral head of rabbits; HE staining was applied to detect pathological changes in the femoral head tissue; ELISA was applied to detect the activity of superoxide dismutase (SOD) and the content of malondialdehyde (MDA) in the femoral head tissue; TUNEL staining was applied to detect osteocyte apoptosis in femoral head tissue; qRT-PCR was applied to detect the expression of miR-30b-5p in femoral head tissue; Western blot was applied to detect the expression of Dickkopf-1 (DKK-1) protein in femoral head tissue. Results Compared with the control group, the number of trabeculae, thickness of trabeculae, SOD activity, and the expression of miR-30b-5p in the ONFH group decreased, the bone trabecular separation, empty bone lacuna rate, MDA content, bone cell apoptosis rate, and the expression of DKK-1 protein increased (P<0.05); compared with the ONFH group, the number of trabeculae, thickness of trabeculae, SOD activity, and the expression of miR-30b-5p in the low-dose, the high-dose puerarin group, and the positive control group increased, the bone trabecular separation, empty bone lacuna rate, MDA content, bone cell apoptosis rate, and the expression of DKK-1 protein decreased (P<0.05); miR-30b-5p antagomir attenuates the inhibitory effect of high dose puerarin on oxidative stress and apoptosis of ONFH rabbits. Conclusion Puerarin can inhibit oxidative stress and apoptosis of ONFH rabbits, and its mechanism may be related to the up-regulation of miR-30b-5p expression. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Ecology & Rural Environment is the property of Journal of Ecology & Rural Environment 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.)