1.Study on the mechanism of proliferative inhibition of arsenic trioxide and rhizoma curcumae on lens epithelial cell by MTT assay
Zhengzheng WU ; Xiurong HUANG ; Mingxin QI ; Jing YAN ; Yonhong HU
Ophthalmology in China 1993;0(01):-
Objective To investigate the proliferative inhibition of lens epithelial cell (LEC) by arsenic trioxide (ATO) and rhizoma curcumae (RC), in order to provide scientific basis for pursuing safe and effective natural drugs to prevent and cure after cataract. Design Experimental study. Participants Cultured Bovine LEC in vitro. Methods Changes of cellular form were observed with microscope. Different concentration of ATO (2.5, 5, 10?mol/L) and RC(5, 10, 20mg/ml) were added to the proliferative LEC separately. The effects of proliferative inhibition by ATO and RC on the LEC were measured with methyl thia-zolyl tetrazolium (MTT) assay method after 72 hours incubation. Main Outcome Measures Cellular form, Absorbance. Results Under the microscope, good growth and quantity increase were found in proliferative control group. Slowing proliferation,poor growth, and few disintegration were observed in ATO group and RC group. MTT assay: Different concentration of ATO (2.5, 5, 10?mol/L)and RC(5, 10, 20mg/ml) can significantly inhibit the proliferation of LEC and these effects were dose dependent(P
2.The swallowing center-insula cortex activation evoked by stimulating acupoints of lower extremity: a study using functional magnetic resonance imaging
Pengxu WEI ; Ruixue BAO ; Tong ZHANG ; Jing ZHANG ; Zuting ZHANG ; Mingxin JING
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(12):898-901
Objective To investigate insula cortex activation evoked by stimulating different acupoints of lower extremity.Methods Twenty healthy male right-handed subjects were recruited to receive functional magnetic resonance imaging(fMRI)examination with a whole-body 3T Siemens Trio system for whole-brain imaging.Participants were at rest during scanning and were instructed to relax with their eyes closed,without falling asleep.A blockdesigned method was applied for acupoint stimulation.The examined acupoints on the right lower extremity were stimulated,respectively,resulting in 4 experimental conditions.Stimulation was performed by brushing the subject's skin over each acupoint with a sponge at a frequency of approximately 2 Hz.Images were analyzed using SPM5 software package.Group analysis was performed with the mixed-effects model.Small volume correction was used to investigate insula cortex activation under each condition at a threshold of P < O.01,with a 6-mm radius centered on the local maxima of activation in insula cortex.The scope of insula cortex was determined with SPM anatomy toolbox.Results All the examined acupoints induced activation in contralateral insula cortex.Activation clusters evoked by different acupoints presented various types of locations and shapes,and all of them located in the posterior part of insula cortex.Activation in the ipsilateral insula cortex was not found for all examined acupoints.Conclusions Stimulating lower extremity acupoints can activate posterior insula cortex.This effect may promote the recovery of dysphagia via several mechanisms including facilitating the initiation of swallowing,improving oral and pharyngeal sensation,and reducing taste disturbance.
3.Signal transduction mechanism of curcumin in inhibiting the proliferation of bovine lens epithelial cell induced by recombinant human epidermal growth factor
Yanhong HU ; Mingxin QI ; Xiurong HUANG ; Lan MA ; Jing YAN ; Zhengzheng WU
Journal of Integrative Medicine 2006;4(1):39-42
OBJECTIVE: To investigate the signal transduction mechanism of curcumin in inhibiting the proliferation of bovine lens epithelial cell (LEC) induced by recombinant human epidermal growth factor (rhEGF). METHODS: There were three groups in this experiment, which were normal control group, untreated group and curcumin-treated group. Proliferation of LEC was induced by rhEGF (50 microg/L). The concentration of intracellular Ca(2+) ([Ca(2+)](i)) in LEC was measured with Fura-2/AM by spectrofluorimetry. The contents of intracellular cAMP and cGMP were assayed by radioimmunoassay. RESULTS: The [Ca(2+)]i in LEC was obviously increased in the untrated group as compared with that in the normal control group (P<0.01), and the [Ca(2+)](i) in LEC in the curcumin-treated group was highest among three groups (P<0.01). The content of intracellular cAMP in LEC was decreased while the content of intracellular cGMP was obviously increased in the untreated group as compared with those in the normal control group (P<0.01). The content of intracellular cAMP in LEC was higher in the curcumin-treated group than that in the untreated group, while the content of intracellular cGMP was lower than that in the untreated group (P<0.01). CONCLUSION: The antiproliferation effects of curcumin on LEC may relate to the regulations of multiple processes of signal transduction.
4.Effects of Acupuncture on Gastrocnemius Fatigue: Based on Surface Electromyography
Fangyin XING ; Li ZHANG ; Huying LU ; Lanqun LIU ; Qian LI ; Mingxin JING
Chinese Journal of Rehabilitation Theory and Practice 2012;18(6):588-590
Objective To explore the effect of acupuncture on gastrocnemius fatigue. Methods 20 healthy volunteers were selected. Accordingto the rating of perceived exercise (RPE) table, when exercise-induced fatigue occurred, the volunteers were needled in PointChengjin for 15 minutes (acupuncture group). 4 weeks later, they just rest after exercise-induced fatigue occurred for the second time for 15minutes (non-acupuncture group). The data of surface electromyographic signal (sEMG) and heart rate were collected. Results The value oflow frequency/high frequency (LF/HF) of sEMG of both groups was higher after exercise. The acupuncture group decreased after acupuncture(P<0.05), the non-acupuncture group increased after rest (P<0.05). The heart rate of both groups increased significantly after exercise(P<0.01), and decreased after acupuncture and rest (P<0.05), and there was no significant difference in the decrement between 2 groups (P>0.05). Conclusion Acupuncture can relieve gastrocnemius fatigue.
5.Effects of perforated bovine amnion combined with recombinant bovine basic fibroblast growth factor on degree Ⅱ burn wounds A comparison with imperforated bovine amnion and vaseline gauze dressing
Hua GUO ; Guoshi XU ; Botao WANG ; Mingxin QIU ; Zhijun ZHU ; Jiaxiang KE ; Jing ZHAO ; Qingjian XU ; Jiade YUAN
Chinese Journal of Tissue Engineering Research 2009;13(51):10193-10196
OBJECTIVE: To observe the clinical effect of perforated bovine amnion combined with recombinant bovine basic fibroblast growth factor (rb-bFGF) on degree Ⅱ burn wounds.METHODS: A total of 43 patients with small and medium-size thermal burn were collected, and the area of testing wound was 1% -2%. The wounds with the same nature were divided into three groups: perforated bovine amnion (treatment group), bovine amnion (control 1 group), and vaseline gauze dressing (control 2 group). All the three groups combined with rb-bFGF. RESULTS: Compared with control 1 group (P < 0.01) and control 2 group (P < 0.05), the treatment group could obviously decrease the healing time of deep degree Ⅱ burn wounds. For superficial degree Ⅱ burn wounds, compared with the control 2 group, the treatment group could also decrease the healing time; however, there was no significant difference between treatment group and control 1 group (P > 0.05). Dressing was not changed frequently, and the pain was relieved. Rash or other adverse effects were not detected in the three groups.CONCLUSION: The combination of perforated bovine amnion and rb-bFGF can obviously promote the healing of burn wounds.
6.Effect of the family function intervention on mental health status of middle school students
YANG Jing, LIU Mingxin, ZHAGN Xingli
Chinese Journal of School Health 2025;46(1):78-81
Objective:
To explore the impact of family function intervention on mental health status of middle school students, so as to provide the reference for promoting adolescent mental health.
Methods:
From October 2023 to January 2024, 44 families from grade 2 of one junior high school were recruited. They were randomly divided into an intervention group ( n =21) and a control group ( n =23) using a simple random sampling method. Both groups of families participated in various daily school activities and learning, but the intervention group of families also participated in 10 online family function intervention courses. Family Assessment Device (FAD) and the Middle School Student Mental Health Scale (MSSMHS) were used as evaluation tools. Pearson correlation analysis was used to test the correlation between FAD total scores of middle school students and the total mean scores of MSSMHS, and repeated measures ANOVA was used to analyze FAD scores changes in various dimensions before and after intervention.
Results:
The total score of FAD in middle school students was positively correlated with the total average score of MSSMHS ( r= 0.44, P <0.01). Before intervention, there was no statistically significant difference in the FAD scores (intervention group: 143.19 ±16.05, control group:144.87±22.40) and MSSMHS total average scores (intervention group: 1.69±0.46, control group: 1.77 ±0.59) between the two groups ( t=0.28, 0.53, P >0.05). After intervention, the main effect of time, group, and time group interaction of the interventions on the FAD total scores between the intervention group and the control group were statistically significant ( F=11.87, 7.26, 11.04, P <0.05). Further simple effects analysis revealed that the post test FAD total score of the intervention group (121.71±16.01) decreased by 21.48 points compared to the pre test and was lower than the post test total score of the control group (144.47±17.71), with statistically significant differences ( t=4.68, 4.11, P <0.05). The main effect of the group on the total mean MSSMHS score between the intervention and control groups was statistically significant ( F=8.45, P <0.05), while the main effect of time was not statistically significant ( F=1.68, P >0.05). Further comparative analysis revealed that the post test total mean score of MSSMHS in the intervention group (1.34±0.23) was lower than that in the control group (1.85±0.52) ( t=3.48, P <0.01).
Conclusion
Family function intervention can improve the mental health status of middle school students, and relevant measures should be actively taken to promote adolescent mental health.
7.Improved primary culture and primary identification of human pituitary adenoma cells
Yu LI ; Yuping PENG ; Jing NIE ; Jun FAN ; Mingxin QIU ; Yawei LIU ; Songtao QI
Chinese Journal of Neuromedicine 2016;15(6):575-579
Objective To explore an improving primary culture method of human pituitary adenoma cells.Methods Thirty-six pituitary adenoma specimens,collected from excision and conformed by pathology in our hospital from November 2014 to June 2015,were used.Based on the former experience from papers and ourselves,our primary culture methods of several different kinds of human pituitary adenomas were improved.Purification and passage culture of cells were performed in the following experiments.CCK-8 assay was used to detect the multiplication capacity of pituitary adenoma cells;immunofluorescent staining and Western blotting were used to observe the cytokeratin and vimentin protein expressions.Results By using the improve culture methods,tumor cells proliferated in suspension with good status and had the tendency of aggregation in culture medium.The proliferation test showed that the tumor cells enjoyed proliferation ability in vitro;tumor cells could pass over five generations.The growth curve of pituitary adenoma cells showed S pattern.Immunofluorescent staining and Western blotting indicated negative cytokeratin and vimentin protein expressions,showing that the cells were from epithelium.Conclusion Each type of pituitary adenoma cells has characteristics of suspended growth and tendency of gathering by using this improved method.
8.The clinical values of VEMP in the diagnosis of vestibular nerve impairment in the patients with type 2 diabetes mellitus
Juan SU ; Jing ZHANG ; Mingxin WANG ; Huifang ZHOU
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2015;50(12):1001-1004
Objective To explore the values of vestibular evoked myogenic potential (VEMP) in the diagnosis of vestibular nerve impairment in type 2 diabetes mellitus patients.Methods Forty-two cases (84 ears)of diabetes mellitus patients and 42 cases (84 ears)normal subjects as the control group were enrolled from 2014 to 2015.Both the patients and normal subjects underwent conventional air-conducted ocular vestibular evoked myogenic potential (oVEMP) and cervical vestibular evoked myogenic potential (cVEMP) in bilateral ears.The results were compared between the patients and normal subjects.A commercially available software package, SPSS19.0, was used for statistical analysis.Results In 84 ears of the normal subjects,oVEMP was present in 70 ears, the educible rate was 83.3% (70/84).cVEMP was present in 74 ears, and the educible rate was 88.1% (74/84).In 84 ears of the diabetes mellitus patients, oVEMP was present in 49 ears, with the educible rate of 58.3% (49/84).cVEMP was present in 52 ears, with the educible rate of 61.9% (52/84).The educible rate in the control group was significantly higher than the diabeticgroup(oVEMP: x2=12.71, P<0.05;cVEMP: x2=15.37, P<0.05).In the diabetic group, the mean values of both oVEMP and cVEMP P1, N1 latencies were significantly longer when compared to the control group (P < 0.05).No significantly statistical difference was found in oVEMP and cVEMP parameters (threshold, latency interval and amplitude) between groups (P > 0.05).Conclusions Vestibular nerve was impaired in diabetes mellitus patients in some degree.VEMP examinations could be useful in the diagnosis of vestibular nerve impairment in type 2 diabetes mellitus patients.
9.Academic ideology of moxibustion methods in Bian Que Xin Shu written by DOU Cai
Li WANG ; Mingxin JING ; Qingguo LIU
Journal of Beijing University of Traditional Chinese Medicine 2016;39(8):647-649
To summarize and explore the academic ideology and characteristics of DOU Cai’s experiences of moxibustion by studying Bian Que Xin Shu written by DOU,a traditional Chinese physician in the Southern Song Dynasty.Before moxibustion,DOU was sure to differentiate meridians and yin-yang.Toni-fying was sure to be applied and strengthening yang was paid much attention,and spleen and kidney were also regarded as important in critical diseases.DOU’s moxibustion worked wonder on most patients, which was characterized by direct moxibustion with less acupoints,more amount and longer duration. DOU’s moxibustion had a wide range of application in internal medicine,surgery,gynecology,pediatrics and ENT.In this book,most of diseases were followed by proved cases which provided important refer-ence to clinical practice .
10.Effects of growth mindset intervention in mental health status in middle school students
Jing YANG ; Mingxin LIU ; Xingli ZHAGN
Chinese Mental Health Journal 2024;38(7):572-577
Objective:To investigate the relationship between growth mindset and mental health in middle school students,and to explore the intervention effects of growth mindset intervention in different grades and at dif-ferent times after intervention.Methods:Totally 612 middle school students from a certain high school in Xi'an were selected to evaluate their growth mindset and mental health status using the Mental Health Diagnostic Test(MHT)and Implicit Personality Theory Questionnaire(IPT-Q).They were divided into a growth mindset interven-tion group(n=306)and a conventional mental health class group(n=306)using a simple random sampling meth-od.The growth mindset intervention group received an additional 45 minutes of growth mindset class on top of the conventional mental health class.Three factor analysis of variance was used to compare the MHT scores of partici-pants in different grades,groups,and time conditions.Results:There was a negative correlation between IPT-Q scores and MHT scores in middle school students(r=-0.10,P<0.05).At 4 weeks after intervention,the MHT scores were lower in the growth mindset intervention group than in the conventional mental health class group[(30.8±5.0)vs.(35.9±16.6),P<0.001].At 4 months after intervention,there was no statistically significant difference in MHT scores between the two groups(P>0.05).Conclusion:It suggests that growth mindset inter-vention could improve the mental health status of middle school students in the short term.