1.Neuroplasticity Mechanisms of Exercise-induced Brain Protection
Li-Juan HOU ; Lan-Qun MAO ; Wei CHEN ; Ke LI ; Xu-Dong ZHAO ; Yin-Hao WANG ; Zi-Zheng YANG ; Tian-He WEI
Progress in Biochemistry and Biophysics 2025;52(6):1435-1452
Neuroscience is a significant frontier discipline within the natural sciences and has become an important interdisciplinary frontier scientific field. Brain is one of the most complex organs in the human body, and its structural and functional analysis is considered the “ultimate frontier” of human self-awareness and exploration of nature. Driven by the strategic layout of “China Brain Project”, Chinese scientists have conducted systematic research focusing on “understanding the brain, simulating the brain, and protecting the brain”. They have made breakthrough progress in areas such as the principles of brain cognition, mechanisms and interventions for brain diseases, brain-like computation, and applications of brain-machine intelligence technology, aiming to enhance brain health through biomedical technology and improve the quality of human life. Due to limited understanding and comprehension of neuroscience, there are still many important unresolved issues in the field of neuroscience, resulting in a lack of effective measures to prevent and protect brain health. Therefore, in addition to actively developing new generation drugs, exploring non pharmacological treatment strategies with better health benefits and higher safety is particularly important. Epidemiological data shows that, exercise is not only an indispensable part of daily life but also an important non-pharmacological approach for protecting brain health and preventing neurodegenerative diseases, forming an emerging research field known as motor neuroscience. Basic research in motor neuroscience primarily focuses on analyzing the dynamic coding mechanisms of neural circuits involved in motor control, breakthroughs in motor neuroscience research depend on the construction of dynamic monitoring systems across temporal and spatial scales. Therefore, high spatiotemporal resolution detection of movement processes and movement-induced changes in brain structure and neural activity signals is an important technical foundation for conducting motor neuroscience research and has developed a set of tools based on traditional neuroscience methods combined with novel motor behavior decoding technologies, providing an innovative technical platform for motor neuroscience research. The protective effect of exercise in neurodegenerative diseases provides broad application prospects for its clinical translation. Applied research in motor neuroscience centers on deciphering the regulatory networks of neuroprotective molecules mediated by exercise. From the perspectives of exercise promoting neurogenesis and regeneration, enhancing synaptic plasticity, modulating neuronal functional activity, and remodeling the molecular homeostasis of the neuronal microenvironment, it aims to improve cognitive function and reduce the incidence of Parkinson’s disease and Alzheimer’s disease. This has also advanced research into the molecular regulatory networks mediating exercise-induced neuroprotection and facilitated the clinical application and promotion of exercise rehabilitation strategies. Multidimensional analysis of exercise-regulated neural plasticity is the theoretical basis for elucidating the brain-protective mechanisms mediated by exercise and developing intervention strategies for neurological diseases. Thus,real-time analysis of different neural signals during active exercise is needed to study the health effects of exercise throughout the entire life cycle and enhance lifelong sports awareness. Therefore, this article will systematically summarize the innovative technological developments in motor neuroscience research, review the mechanisms of neural plasticity that exercise utilizes to protect the brain, and explore the role of exercise in the prevention and treatment of major neurodegenerative diseases. This aims to provide new ideas for future theoretical innovations and clinical applications in the field of exercise-induced brain protection.
2.Characterization and features of dampness-heat obstruction syndrome in rats with knee osteoarthritis based on "disease-syndrome-symptom" combination research strategy.
Li-Li WANG ; Teng-Teng XU ; Xiao-Xiao WANG ; Qun LI ; Li-Ting XU ; Wei-Heng CHEN ; Chun-Fang LIU ; Na LIN
China Journal of Chinese Materia Medica 2025;50(7):1861-1871
A combination of the "disease-syndrome-symptom" approach was used to study the syndrome characterization and features of dampness-heat obstruction syndrome in papain-induced knee osteoarthritis(KOA) model rats during the disease process. Forty-eight male SD rats were randomly divided into sham and model groups. The KOA model was established by injecting a mixture of papain and L-cysteine into the joint cavity on days 1, 3, and 5. During the 8 weeks following model establishment, the rats were assessed weekly for the plantar mechanical pain threshold, knee joint diameter, local skin temperature of the knee joint, weight-bearing difference between the two hind feet, and the modified Lequesne MG score of the knee joint. Samples were collected at 1, 2, 4, 6, and 8 weeks after model establishment to observe the gross lesions in cartilage and synovium. Histopathological changes in joint tissues were examined using hematoxylin-eosin, Masson's trichrome, and Senna red O-solid green staining. ELISA and immunohistochemical analysis were performed to detect the levels of interleukin(IL)-1β, IL-6, tumor necrosis factor(TNF)-α, prostaglandin E2(PGE2), and the expression of aquaporins(AQP) 1 and 3 in serum and synovium. The results showed that the ink score of articular cartilage in the model group significantly increased from 4 to 8 weeks, the cartilage Mankin's score and the percentage of Masson-positive area in cartilage increased significantly from 1 to 8 weeks. The percentage of red-stained area for cartilage proteoglycans decreased significantly from 1 to 8 weeks. The synovitis score from 1 to 6 weeks and the percentage of blue-stained collagen fibers in the synovium from 1 to 8 weeks increased significantly, with statistically significant differences compared to the sham group. The mechanical pain threshold in the model group significantly decreased from 1 to 8 weeks, the knee joint diameter significantly increased from 1 to 6 weeks, and the local skin temperature of the knee joint, the weight-bearing difference between the two hind feet, and the modified Lequesne MG score from 1 to 5 weeks significantly increased, all with statistically significant differences compared to the sham group. The levels of IL-1β, IL-6, TNF-α, and PGE2 in serum and synovium of the model group significantly increased from 1 to 6 weeks. Serum TNF-α and PGE2, and synovial IL-1β, also significantly increased at 8 weeks. The levels of cartilage AQP1 and AQP3 significantly increased from 1 to 4 weeks, while synovial AQP1 and AQP3 increased significantly from 1 to 6 weeks, with all differences statistically significant compared to the sham group. In conclusion, papain-induced KOA rats exhibited pathological changes, including articular cartilage degeneration and synovial inflammation, within 1 week of induction. The KOA rats showed characteristics of dampness-heat obstruction syndrome, such as joint pain, swelling, elevated skin temperature, and decreased function, as well as increased inflammatory factors and AQP1、AQP3 in serum and joint tissues within 5 to 6 weeks of disease onset. These results provide an experimental model for studying the syndromes of KOA with dampness-heat obstruction syndrome.
Animals
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Male
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Rats, Sprague-Dawley
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Rats
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Osteoarthritis, Knee/physiopathology*
;
Disease Models, Animal
;
Humans
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Interleukin-1beta/metabolism*
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Interleukin-6/metabolism*
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Tumor Necrosis Factor-alpha/metabolism*
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Knee Joint/pathology*
3.Randomized, double-blind, parallel-controlled, multicenter, equivalence clinical trial of Jiuwei Xifeng Granules(Os Draconis replaced by Ostreae Concha) for treating tic disorder in children.
Qiu-Han CAI ; Cheng-Liang ZHONG ; Si-Yuan HU ; Xin-Min LI ; Zhi-Chun XU ; Hui CHEN ; Ying HUA ; Jun-Hong WANG ; Ji-Hong TANG ; Bing-Xiang MA ; Xiu-Xia WANG ; Ai-Zhen WANG ; Meng-Qing WANG ; Wei ZHANG ; Chun WANG ; Yi-Qun TENG ; Yi-Hui SHAN ; Sheng-Xuan GUO
China Journal of Chinese Materia Medica 2025;50(6):1699-1705
Jiuwei Xifeng Granules have become a Chinese patent medicine in the market. Because the formula contains Os Draconis, a top-level protected fossil of ancient organisms, the formula was to be improved by replacing Os Draconis with Ostreae Concha. To evaluate whether the improved formula has the same effectiveness and safety as the original formula, a randomized, double-blind, parallel-controlled, equivalence clinical trial was conducted. This study enrolled 288 tic disorder(TD) of children and assigned them into two groups in 1∶1. The treatment group and control group took the modified formula and original formula, respectively. The treatment lasted for 6 weeks, and follow-up visits were conducted at weeks 2, 4, and 6. The primary efficacy endpoint was the difference in Yale global tic severity scale(YGTSS)-total tic severity(TTS) score from baseline after 6 weeks of treatment. The results showed that after 6 weeks of treatment, the declines in YGTSS-TSS score showed no statistically significant difference between the two groups. The difference in YGTSS-TSS score(treatment group-control group) and the 95%CI of the full analysis set(FAS) were-0.17[-1.42, 1.08] and those of per-protocol set(PPS) were 0.29[-0.97, 1.56], which were within the equivalence boundary [-3, 3]. The equivalence test was therefore concluded. The two groups showed no significant differences in the secondary efficacy endpoints of effective rate for TD, total score and factor scores of YGTSS, clinical global impressions-severity(CGI-S) score, traditional Chinese medicine(TCM) response rate, or symptom disappearance rate, and thus a complete evidence chain with the primary outcome was formed. A total of 6 adverse reactions were reported, including 4(2.82%) cases in the treatment group and 2(1.41%) cases in the control group, which showed no statistically significant difference between the two groups. No serious suspected unexpected adverse reactions were reported, and no laboratory test results indicated serious clinically significant abnormalities. The results support the replacement of Os Draconis by Ostreae Concha in the original formula, and the efficacy and safety of the modified formula are consistent with those of the original formula.
Adolescent
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Child
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Child, Preschool
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Female
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Humans
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Male
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Double-Blind Method
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Drugs, Chinese Herbal/therapeutic use*
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Tic Disorders/drug therapy*
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Treatment Outcome
4.Mediating effect of sleep duration between depression symptoms and myopia in middle school students.
Wei DU ; Xu-Xiang YANG ; Ru-Shuang ZENG ; Chun-Yao ZHAO ; Zhi-Peng XIANG ; Yuan-Chun LI ; Jie-Song WANG ; Xiao-Hong SU ; Xiao LU ; Yu LI ; Jing WEN ; Dang HAN ; Qun DU ; Jia HE
Chinese Journal of Contemporary Pediatrics 2025;27(3):359-365
OBJECTIVES:
To explore the mediating role of sleep duration in the relationship between depression symptoms and myopia among middle school students.
METHODS:
This study was a cross-sectional research conducted using a stratified cluster random sampling method. A total of 1 728 middle school students were selected from two junior high schools and two senior high schools in certain urban areas and farms of the Xinjiang Production and Construction Corps. Questionnaire surveys and vision tests were conducted among the students. Spearman analysis was used to analyze the correlation between depression symptoms, sleep duration, and myopia. The Bootstrap method was employed to investigate the mediating effect of sleep duration between depression symptoms and myopia.
RESULTS:
The prevalence of myopia in the overall population was 74.02% (1 279/1 728), with an average sleep duration of (7.6±1.0) hours. The rate of insufficient sleep was 83.62% (1 445/1 728), and the proportion of students exhibiting depression symptoms was 25.29% (437/1 728). Correlation analysis showed significant negative correlations between visual acuity in both eyes and sleep duration with depressive emotions as measured by the Center for Epidemiologic Studies Depression Scale (with correlation coefficients of -0.064, -0.084, and -0.199 respectively; P<0.01), as well as with somatic symptoms and activities (with correlation coefficients of -0.104, -0.124, and -0.233 respectively; P<0.01) and interpersonal relationships (with correlation coefficients of -0.052, -0.059, and -0.071 respectively; P<0.05). The correlation coefficients for left and right eye visual acuity and sleep duration were 0.206 and 0.211 respectively (P<0.001). Sleep duration exhibited a mediating effect between depression symptoms and myopia (indirect effect=0.056, 95%CI: 0.029-0.088), with the mediating effect value for females (indirect effect=0.066, 95%CI: 0.024-0.119) being higher than that for males (indirect effect=0.042, 95%CI: 0.011-0.081).
CONCLUSIONS
Sleep duration serves as a partial mediator between depression symptoms and myopia in middle school students.
Humans
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Myopia/etiology*
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Male
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Female
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Depression/physiopathology*
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Cross-Sectional Studies
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Sleep
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Adolescent
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Students
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Child
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Time Factors
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Sleep Duration
5.Clinical Characteristics and Prognostic Analysis of Childhood Acute Lymphoblastic Leukemia with Positive E2A-PBX1 Fusion Gene.
Ming JIA ; Bo-Fei HU ; Xiao-Jun XU ; Wei-Qun XU ; Jing-Ying ZHANG ; Yong-Min TANG
Journal of Experimental Hematology 2025;33(2):319-324
OBJECTIVE:
To explore the clinical characteristics, therapeutic responses and prognostic features of E2A-PBX1 fusion gene for childhood acute lymphoblastic leukemia (ALL).
METHODS:
A total of 837 pediatric patients with ALL who were initially diagnosed in our hospital from July 2010 to November 2017 were retrospectively analyzed, 48 children with positive E2A-PBX1 fusion gene were detected by the real-time quantitative PCR techniques and their data were retrospectively collected for analysis.
RESULTS:
Among 48 cases with positive E2A-PBX1 fusion gene, there were 26 males and 22 females, with onset ages ranging from 9 months to 13 years old. There were 2 cases (4.2%) in the low-risk group, 32 cases (66.7%) in the intermediate-risk group, and 14 cases (29.1%) in the high-risk group at initial diagnosis. The white blood cell (WBC) counts of 25 cases (53.2%) at initial diagnosis were <50×109/L, 11 cases (23.4%) were (50-100)×109/L, and 11 cases (23.4%) ≥100×109/L. The main immunophenotype was common-B ALL (44 cases, 91.7%). Other leukemia fusion genes such as BCR-ABL1, MLL-AF4, and TEL-AML1 were not observed in this cohort of patients. All patients received the treatment of NPCLC-ALL2008 protocol, and 5 cases (10.4%) occurred poor prednisone response. All the 48 cases achieved complete remission (CR) after the induction treatments. The last follow-up date was April 30, 2023. A total of 5 children relapsed, including 1 case with intermediate risk and 4 cases with high risk. The recurrence rate in the high-risk group was significantly higher than that in the intermediate- and low-risk groups (both P < 0.05). Most relapsed children had elevated WBC counts at initial diagnosis. Among them, WBC counts ≥100×109/L was observed in 4 cases. The recurrence rate among children with WBC counts ≥100×109/L was significantly higher than that with WBC counts <100×109/L (P < 0.01). Four deaths occurred in this cohort, of which 3 died of leukemia recurrence. The 10-year event-free survival rate and 10-year overall survival rate of the 48 children with positive E2A-PBX1 fusion gene were 87.5%±4.8% and 91.7%±4.0%, respectively.
CONCLUSION
In ALL children with positive E2A-PBX1 fusion gene, those with elevated WBC counts and high risk stratification at initial diagnosis are more likely to experience recurrence. Recurrence is the main cause of death in this group. It is suggested that such kind of children receive more intensive chemotherapy or undergo hematopoietic stem cell transplantation as early as possible to further improve prognosis.
Humans
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Precursor Cell Lymphoblastic Leukemia-Lymphoma/diagnosis*
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Oncogene Proteins, Fusion/genetics*
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Prognosis
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Child
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Male
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Female
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Child, Preschool
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Adolescent
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Retrospective Studies
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Infant
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Homeodomain Proteins
6.Expert consensus on the application of nasal cavity filling substances in nasal surgery patients(2025, Shanghai).
Keqing ZHAO ; Shaoqing YU ; Hongquan WEI ; Chenjie YU ; Guangke WANG ; Shijie QIU ; Yanjun WANG ; Hongtao ZHEN ; Yucheng YANG ; Yurong GU ; Tao GUO ; Feng LIU ; Meiping LU ; Bin SUN ; Yanli YANG ; Yuzhu WAN ; Cuida MENG ; Yanan SUN ; Yi ZHAO ; Qun LI ; An LI ; Luo BA ; Linli TIAN ; Guodong YU ; Xin FENG ; Wen LIU ; Yongtuan LI ; Jian WU ; De HUAI ; Dongsheng GU ; Hanqiang LU ; Xinyi SHI ; Huiping YE ; Yan JIANG ; Weitian ZHANG ; Yu XU ; Zhenxiao HUANG ; Huabin LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(4):285-291
This consensus will introduce the characteristics of fillers used in the surgical cavities of domestic nasal surgery patients based on relevant literature and expert opinions. It will also provide recommendations for the selection of cavity fillers for different nasal diseases, with chronic sinusitis as a representative example.
Humans
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Nasal Cavity/surgery*
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Nasal Surgical Procedures
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China
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Consensus
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Sinusitis/surgery*
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Dermal Fillers
7.The best evidence for the management of ovarian hyper-stimulation syndrome in patients undergoing assisted reproductive therapy
Yu HE ; Zilian WANG ; Yongmei ZHANG ; Xuechun JIANG ; Xuling SHEN ; Meiling XU ; Qun WEI
Journal of Zhejiang University. Medical sciences 2024;53(5):632-640
Objective:To summarize the best evidence for the management of ovarian hyperstimulation syndrome in patients undergoing assisted reproductive therapy.Methods:Evidence related to the management of ovarian hyperstimulation syndrome in patients undergoing assisted reproductive therapy,including guidelines,clinical decision,best clinical practice,systematic evaluation,expert consensus and evidence summary and related original research were systematically searched in UpToDate,BMJ Best Practice,World Health Organization(WHO)website,Guidelines International Network(GIN),National Institute for Health and Clinical Excellence(NICE)website,National Guidelines website,American Society for Reproductive Medicine(ASRM)website,New York Academy of Sciences(NYAS)website,Joanna Briggs Institute(JBI)database,Cochrane Library,CINAHL,PubMed,Wanfang database,CNKI,and China Biomedical Literature Database from inception to May 31,2024.Two researchers independently evaluated the quality of the literature,and a senior researcher made the final decision for literature inclusion.Results:A total of 15 articles were included in the study.Following quality assessment,one article was excluded.The remaining 14 articles included 5 practice guidelines,3 systematic reviews,2 expert consensuses,1 evidence summary,and 3 from UpToDate.Ultimately,27 pieces of evidence were identified across five key aspects:risk assessment,disease monitoring,early prevention,institutional management and health education.Conclusion:The updated evidence indicates that the monitoring and prevention of ovarian hyperstimulation syndrome should start early,personalized treatment plans should be provided for patients,and the rational allocation of treatment resources needs to be promoted to enhance effective management of ovarian hyper-stimulation syndrome.
8.Study on the Distribution of Traditional Chinese Medicine Syndromes in Patients with Type 2 Diabetic Retinopathy and Its Correlation with Serum Inflammatory Factors and Adiponectin Levels
Hong-Yun WU ; Zhen-Xuan YUAN ; Fang CHEN ; Wei YE ; Li-Qun HU ; Xian-Zhong ZENG ; Zhe XU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(6):1371-1379
Objective To investigate the distribution of traditional Chinese medicine(TCM)syndromes in patients with type 2 diabetic retinopathy(T2DR)and to explore the correlation of TCM syndromes with serum inflammatory factors and adiponectin(APN)levels,so as to provide evidence for TCM syndrome differentiation of T2DR.Methods A cross-sectional case-control study was conducted in 42 patients(involving 84 eyes)diagnosed as T2DR in the Department of Ophthalmology,Ganzhou People's Hospital from September 2022 to March 2023.The correlation between fundus fluorescein angiography(FFA)staging and TCM syndrome differentiation in patients with T2DR was explored.The relationship between TCM syndrome types and serum levels of inflammatory factors and APN,as well as the differences in serum inflammatory factors and APN levels of the patients with various FFA stages were analyzed.The correlation between each variable and TCM syndrome types in patients with T2DR was investigated.Results(1)Among the 42 patients with T2DR,27 cases were male and 15 cases were female,and their age averaged(54.0±12.0)years old.Among them,14 cases(33.3%)were differentiated as liver-kidney deficiency with malnutrition of eye collateral syndrome,15 cases(35.7%)were differentiated as yin-essence deficiency with internal dry-heat syndrome,9 cases(21.4%)were differentiated as qi-yin deficiency with collateral stasis and obstruction syndrome,4 cases(9.5%)were differentiated as yin-yang deficiency with blood stasis and phlegm coagulation syndrome,and none case(0.0%)was differentiated as spleen dysfunction and water-damp obstruction syndrome.(2)FFA staging showed that FFA staging ≥ 4[i.e.,having proliferative diabetic retinopathy(PDR)]was found in 78.6%(11/14)of the patients with liver-kidney deficiency with malnutrition of eye collaterals syndrome,73.3%(11/15)of the patients with yin-essence deficiency with internal dry-heat syndrome,100%(9/9)of the patients with qi-yin deficiency with collateral stasis and obstruction syndrome,and 100%(4/4)of the patients with yin-yang deficiency with blood stasis and phlegm coagulation syndrome.But the intergroup comparison showed no significant differences among various syndrome types(P=0.272).(3)Among the 42 patients with T2DR,35 patients(83.3%)had higher level of tumor necrosis factor-α(TNF-α),28 patients(68.3%)had higher level of C-reactive protein(CRP)and 38 patients(90.5%)had higher level of glycosylated hemoglobin(HbA1c)than the normal.However,there was no significant difference in the levels of serum inflammatory factors of TNF-α,CRP,interleukin-6(IL-6)and vascular endothelial growth factor(VEGF),APN and HbA1c among the patients with different FFA stages(P>0.05),neither did the difference in serum APN,TNF-α,CRP,IL-6 and VEGF levels among the patients with different TCM syndrome types(P>0.05).(4)The correlation analysis showed that the patients with yin-yang deficiency with blood stasis and phlegm coagulation syndrome had a shorter course of eye diseases than the patients with liver-kidney deficiency with malnutrition of eye collaterals syndrome(r=-0.467,P=0.051),had higher CRP level than the patients with yin-essence deficiency with internal dry-heat syndrome(r=0.592,P=0.010),and had higher CRP level(r=0.668,P=0.013)and a longer course of diabetes(r=0.629,P=0.021)than the patients with qi-yin deficiency with collateral stasis and obstruction syndrome.Conclusion Increased serum TNF-α and CRP expressions are presented in the patients with T2DR.Liver-kidney deficiency with malnutrition of eye collaterals syndrome and yin-essence deficiency with internal dry-heat syndrome are the common syndromes in T2DR.Yin-yang deficiency with blood stasis and phlegm coagulation syndrome is closely correlated with CRP level,and the patients with yin-yang deficiency with blood stasis and phlegm coagulation syndrome have a longer course of diabetes.
9.Clinical Observation of Xiaoying Sanjie Granules in the Treatment of Benign Thyroid Nodules with Qi Stagnation and Phlegm Obstruction Type
Yu-Xi ZHOU ; Tao-Qing YIN ; Shuai XU ; Jun-Wei WU ; Ren-Qun YE
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(7):1750-1756
Objective To observe the efficacy and safety of Xiaoying Sanjie Granules(derived from the modified Sini San and Banxia Houpo Decoction)in the treatment of patients with benign thyroid nodules of qi stagnation and phlegm obstruction type.Methods A retrospective study was conducted.According to the treatment methods,60 patients with benign thyroid nodules of qi stagnation and phlegm obstruction type were divided into observation group and control group,30 cases in each group.The control group was given health training alone,and the observation group was given oral use of Xiaoying Sanjie Granules on the basis of treatment for the control group.The course of treatment covered 12 weeks.The changes of traditional Chinese medicine(TCM)syndrome scores,maximum cross-section diameter of the thyroid nodule and thyroid function indexes of thyroid stimulating hormone(TSH),free triiodothyronine(FT3)and free thyroxine(FT4)in the two groups before and after treatment were observed.After treatment,the clinical efficacy and adverse reactions were compared between the two groups.Results(1)After 12 weeks of treatment,the total effective rate of the observation group was 73.33%(22/30),and that of the control group was 10.00%(3/30).The intergroup comparison(tested by chi-square test)showed that the efficacy of the observation group was significantly superior to that of the control group(P<0.01).(2)After treatment,the TCM syndrome scores of the observation group were significantly lower than those before treatment(P<0.01),and the maximum cross-section diameter of the thyroid nodule was significantly smaller than that before treatment(P<0.01).However,no obvious improvement of TCM syndromes and the maximum cross-section diameter of the thyroid nodule was presented in the control group(P>0.05).The intergroup comparison showed that the decrease of TCM syndrome scores and the reduction of the maximum cross-section diameter of the thyroid nodule in the observation group were significantly superior to those in the control group(P>0.05).(4)During the treatment,no obvious adverse reactions occurred in the two groups,indicating high safety.Conclusion Xiaoying Sanjie Granules exerts certain effects on patients with benign thyroid nodules of qi stagnation and phlegm obstruction type.The granuels are effective on significantly reduce the maximum cross-section diameter of the thyroid nodule,improve the clinical symptoms of patients,and has fewer adverse reactions,with high safety.
10.Salidroside Ameliorates Lung Injury Induced by PM2.5 by Regulating SIRT1-PGC-1α in Mice
Hong Xiao LI ; Mei Yu LIU ; Hui SHAN ; Feng Jin TAN ; Jian ZHOU ; Jin Yuan SONG ; Qi Si LI ; Chen LIU ; Qun Dong XU ; Li YU ; Wei Wan LI
Biomedical and Environmental Sciences 2024;37(4):367-376
Objective This study aimed to clarify the intervention effect of salidroside(SAL)on lung injury caused by PM2.5 in mice and illuminate the function of SIRT1-PGC-1ɑ axis. Methods Specific pathogen-free(SPF)grade male C57BL/6 mice were randomly assigned to the following groups:control group,SAL group,PM2.5 group,SAL+PM2.5 group.On the first day,SAL was given by gavage,and on the second day,PM2.5 suspension was given by intratracheal instillation.The whole experiment consist of a total of 10 cycles,lasting 20 days.At the end of treatment,blood samples and lung tissues were collected and analyzed.Observation of pathological changes in lung tissue using inverted microscopy and transmission electron microscopy.The expression of inflammatory,antioxidants,apoptosis,and SIRT1-PGC-1ɑ proteins were detected by Western blotting. Results Exposure to PM2.5 leads to obvious morphological and pathologica changes in the lung of mice.PM2.5 caused a decline in levels of antioxidant-related enzymes and protein expressions of HO-1,Nrf2,SOD2,SIRT1 and PGC-1ɑ,and an increase in the protein expressions of IL-6,IL-1β,Bax,caspase-9 and cleaved caspase-3.However,SAL reversed the aforementioned changes caused by PM2.5 by activating the SIRT1-PGC-1α pathway. Conclusion SAL can activate SIRT1-PGC-1ɑ to ameliorate PM2.5-induced lung injury.

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