1.Medication rules of Astragali Radix in ancient Chinese medical books based on "disease-medicine-dose" pattern.
Jia-Lei CAO ; Lü-Yuan LIANG ; Yi-Hang LIU ; Zi-Ming XU ; Xuan WANG ; Wen-Xi WEI ; He-Jia WAN ; Xing-Hang LYU ; Wei-Xiao LI ; Yu-Xin ZHANG ; Bing-Qi WEI ; Xian-Qing REN
China Journal of Chinese Materia Medica 2025;50(3):798-811
This study employed the "disease-medicine-dose" pattern to mine the medication rules of traditional Chinese medicine(TCM) prescriptions containing Astragali Radix in ancient Chinese medical books, aiming to provide a scientific basis for the clinical application of Astragali Radix and the development of new medicines. The TCM prescriptions containing Astragali Radix were retrieved from databases such as Chinese Medical Dictionary and imported into Excel 2020 to construct the prescription library. Statical analysis were performed for the prescriptions regarding the indications, syndromes, medicine use frequency, herb effects, nature and taste, meridian tropism, dosage forms, and dose. SPSS statistics 26.0 and IBM SPSS Modeler 18.0 were used for association rules analysis and cluster analysis. A total of 2 297 prescriptions containing Astragali Radix were collected, involving 233 indications, among which sore and ulcer, consumptive disease, sweating disorder, and apoplexy had high frequency(>25), and their syndromes were mainly Qi and blood deficiency, Qi and blood deficiency, Yin and Yang deficiency, and Qi deficiency and collateral obstruction, respectively. In the prescriptions, 98 medicines were used with the frequency >25 and they mainly included Qi-tonifying medicines and blood-tonifying medicines. Glycyrrhizae Radix et Rhizoma, Angelicae Sinensis Radix, Ginseng Radix et Rhizoma, Atractylodis Macrocephalae Rhizoma, and Citri Reticulatae Pericarpium were frequently used. The medicines with high frequency mainly have warm or cold nature, and sweet, pungent, or bitter taste, with tropism to spleen, lung, heart, liver, and kidney meridians. In the treatment of sore and ulcer, Astragali Radix was mainly used with the dose of 3.73 g and combined with Glycyrrhizae Radix et Rhizoma to promote granulation and heal up sores. In the treatment of consumptive disease, Astragali Radix was mainly used with the dose of 37.30 g and combined with Ginseng Radix et Rhizoma to tonify deficiency and replenish Qi. In the treatment of sweating disorder, Astragali Radix was mainly used with the dose of 3.73 g and combined with Glycyrrhizae Radix et Rhizoma to consolidate exterior and stop sweating. In the treatment of apoplexy, Astragali Radix was mainly used with the dose of 7.46 g and combined with Glycyrrhizae Radix et Rhizoma to dispell wind and stop convulsions. Astragali Radix can be used in the treatment of multiple system diseases, with the effects of tonifying Qi and ascending Yang, consolidating exterior and stopping sweating, and expressing toxin and promoting granulation. According to the manifestations of different diseases, when combined with other medicines, Astragali Radix was endowed with the effects of promoting granulation and healing up sores, tonifying deficiency and Qi, consolidating exterior and stopping sweating, and dispelling wind and replenishing Qi. The findings provide a theoretical reference and a scientific basis for the clinical application of Astragali Radix and the development of new medicines.
Drugs, Chinese Herbal/history*
;
Humans
;
Medicine, Chinese Traditional/history*
;
History, Ancient
;
Astragalus Plant/chemistry*
;
China
;
Astragalus propinquus
2.Association between acupuncture and live birth rates after fresh embryo transfer: A cohort study based on different propensity score methods.
Xiao-Yan ZHENG ; Zi-Yi JIANG ; Yi-Ting LI ; Chao-Liang LI ; Hao ZHU ; Zheng YU ; Si-Yi YU ; Li-Li YANG ; Song-Yuan TANG ; Xing-Yu LÜ ; Fan-Rong LIANG ; Jie YANG
Journal of Integrative Medicine 2025;23(5):528-536
OBJECTIVE:
To explore the association between acupuncture during controlled ovarian hyperstimulation (COH) and the live birth rate (LBR) using different propensity score methods.
METHODS:
In this retrospective cohort study, eligible women who underwent a COH were divided into acupuncture and non-acupuncture groups. The primary outcome was LBR, as determined by propensity score matching (PSM). LBR was defined as the delivery of one or more living infants that reached a gestational age over 28 weeks after embryo transfer. The propensity score model encompassed 16 confounding variables. To validate the results, sensitivity analyses were conducted using three additional propensity score methods: propensity score adjustment, inverse probability weighting (IPW), and IPW with a "doubly robust" estimator.
RESULTS:
The primary cohort encompassed 9751 patients (1830 [18.76%] in the acupuncture group and 7921 [81.23%] in the non-acupuncture group). Following 1:1 PSM, a higher LBR was found in the acupuncture cohort (41.4% [755/1824] vs 36.4% [664/1824], with an odds ratio of 1.23 [95% confidence interval, 1.08-1.41]). Three additional propensity score methods produced essentially similar results. The risk of serious adverse events did not significantly differ between the two groups.
CONCLUSION
This retrospective study revealed an association between acupuncture and an increased LBR among patients undergoing COH, and that acupuncture is a safe and valuable treatment option. Please cite this article as: Zheng XY, Jiang ZY, Li YT, Li CL, Zhu H, Yu Z, Yu SY, Yang LL, Tang SY, Lü XY, Liang FR, Yang J. Association between acupuncture and live birth rates after fresh embryo transfer: A cohort study based on different propensity score methods. J Integr Med. 2025; 23(5):528-536.
Humans
;
Female
;
Propensity Score
;
Embryo Transfer
;
Adult
;
Acupuncture Therapy
;
Retrospective Studies
;
Pregnancy
;
Live Birth
;
Birth Rate
;
Cohort Studies
3.Detection of Carbamazepine and Its Metabolites in Blood Samples by LC-MS/MS.
Hai-Yan CUI ; Chen-Xi LÜ ; Yan-Hua SHI ; Ni YUAN ; Jia-Hao LIANG ; Quan AN ; Zhong-Yuan GUO ; Ke-Ming YUN
Journal of Forensic Medicine 2023;39(1):34-39
OBJECTIVES:
To establish a method for the detection of carbamazepine and its metabolites 10,11-dihydro-10,11-epoxycarbamazepine and 10,11-dihydro-10-hydroxycarbamazepine in blood samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS).
METHODS:
The blood samples were treated with 1-butyl-3-methylimidazolium hexafluorophosphate as an extraction solvent. The samples were extracted by ultrasound-assisted extraction and separated by ZORBAX Eclipse Plus C18, 95Å column. The mobile phase A aqueous solution containing 0.1% formic acid and 10 mmol/L ammonium acetate, and mobile phase B mixed organic solvent containing acetonitrile/methanol (Vacetonitrile∶Vmethanol=2∶3) were used for gradient elution at the flow rate of 1.00 mL/min. An electrospray ion source in positive mode was used for detection in the multiple reaction monitoring.
RESULTS:
The linearities of carbamazepine and its metabolites 10,11-dihydro-10,11-epoxycarbamazepine and 10,11-dihydro-10-hydroxycarbamazepine in blood samples were good within the corresponding range, with correlation coefficients (r) greater than 0.995 6. The limits of detection were 3.00, 0.40 and 1.30 ng/mL, respectively. The limit of quantitation were 8.00, 1.00 and 5.00 ng/mL, respectively. The extraction recoveries ranged from 76.00% to 106.44%. The relative standard deviations of the intra-day and inter-day precisions were less than 16%. Carbamazepine and its main metabolite 10,11-dihydro-10,11-epoxycarbamazepine were detected in blood samples of death cases with a mass concentration of 2.71 μg/mL and 252.14 ng/mL, respectively.
CONCLUSIONS
This method has high sensitivity and good selectivity, which is suitable for the detection of carbamazepine and its metabolites in blood samples, and can be used for carbamazepine-related forensic identifications.
Chromatography, Liquid/methods*
;
Tandem Mass Spectrometry
;
Methanol
;
Carbamazepine/analysis*
;
Benzodiazepines/analysis*
;
Solvents
;
Chromatography, High Pressure Liquid
;
Solid Phase Extraction
4.Effect of moxibustion at Shenque (CV 8) on myocardial remodeling and function in exercise-induced fatigue rats
Zhi-Fang ZHANG ; Yu-Lei LIANG ; Tian-Yuan LÜ ; Zheng-Xian SHEN ; Xin WANG ; Jie ZHU ; Wen-Li LI ; Shi-Ling LÜ ; Dong-Yun SUN
Journal of Acupuncture and Tuina Science 2021;19(4):249-257
Objective: To explore the effect of moxibustion at Shenque (CV 8) on myocardial structure and function in exercise-induced fatigue rats. Methods: A 12-week treadmill running training was performed to create an exercise-induced fatigue rat model. Sixty eligible male specific-pathogen-free grade Sprague-Dawley rats were randomly divided into a blank group, a control group, a model group, a non-meridian non-acupoint group, a Zusanli (ST 36) group and a Shenque (CV 8) group, with 10 rats in each group. Rats in the blank group did not receive treadmill running training or moxibustion. Rats in the control group did not receive treadmill running training but received mild moxibustion at Shenque (CV 8). Rats in the model group received treadmill running training but no moxibustion. Rats in the non-meridian non-acupoint group, the Zusanli (ST 36) group and the Shenque (CV 8) group received moxibustion at the non-meridian non-acupoint points, Zusanli (ST 36) or Shenque (CV 8) immediately after each treadmill running training, 15 min each time, once a day for 5 consecutive days a week at a 2-day interval, 60 times of moxibustion in total. Left ventricular end-diastolic diameter (LVEDd), left ventricular end-systolic diameter (LVESd), left ventricular diastolic volume (LVDv), left ventricular systolic volume (LVSv), ejection fraction (EF), stroke volume (SV), early diastolic peak flow velocity of mitral valve (E) and late diastolic peak flow velocity of mitral valve (A) of each group before and after the last treadmill running training were measured. Blood was collected 6 h after the last treadmill running training, and serum C-reactive protein (CRP), myoglobin (Mb), creatine kinase-myocardial band (CK-MB), cardiac troponin I (cTnI) and cardiac troponin T (cTnT) levels were detected. Finally, the heart was separated, the heart mass (HM) was measured, the cTnT level of the myocardial tissue was detected, the ultrastructural changes of the left ventricular myocardium were observed by transmission electron microscope, the left ventricular fraction shortening (LVFS), E/A and heart mass index (HMI) were calculated. Results: Compared with the same group before treatment, the rat cardiac LVEDd, LVESd, LVDv, LVSv, SV, E and A were significantly increased (all P<0.01), and the rat LVFS, E/A and EF were significantly decreased (all P<0.01) in the model group and the non-meridian non-acupoint group after treatment; the rat cardiac SV, LVDv, LVSv, E and A were all increased (all P<0.01), while E/A and EF were decreased (all P<0.01) in the Zusanli (ST 36) group after treatment; the rat cardiac LVDv, E and A were significantly increased (P<0.01 or P<0.05), and E/A was significantly decreased (P<0.01) in the Shenque (CV 8) group after treatment. After treatment, compared with the blank group, the rat cardiac LVEDd, LVESd, SV, LVDv, LVSv, E, A, the serum CRP, Mb, CK-MB, cTnI, cTnT and HMI, and the myocardial cTnT were increased (all P<0.01), and the LVFS, E/A and EF were all reduced (all P<0.01) in the model group; compared with the model group and the non-meridian non-acupoint group, rats in the Zusanli (ST 36) group and the Shenque (CV 8) group showed decreased LVEDd, LVESd, SV, LVDv, LVSv, E, A, serum CRP, Mb, CK-MB, cTnI, cTnT and HMI, and myocardial cTnT (P<0.01 or P<0.05), along with increased LVFS, E/A and EF (all P<0.01); compared with the Zusanli (ST 36) group, Mb and A of the Shenque (CV 8) group were decreased (both P<0.01), while both E/A and EF were increased (P<0.01, P<0.05). Transmission electron microscopy examination showed that myofibrils in the blank group and the control group were neatly arranged with clear light and dark bands; the model group and the non-meridian non-acupoint group showed different degrees of myofibril disintegration and breakage, increased and aggregated mitochondria of different sizes, and increased electron density. The myofibrils in the Shenque (CV 8) group and Zusanli (ST 36) group were arranged neatly with clear light and dark bands, and compensatory hyperplasia of mitochondria. Conclusion: Moxibustion at Shenque (CV 8) and Zusanli (ST 36) both can effectively improve the occurrence of myocardial remodeling in exercise-induced fatigue rats, and the effect of moxibustion at Shenque (CV 8) is better in improving cardiac function.
5.Epidemiological characteristics of imported malaria in Zhengzhou City from 2016 to 2020
Li-hua GAO ; Jia-jia SHI ; Yue-quan ZHANG ; Ming-jie LÜ ; Xue-lei ZHAO ; Ying LIU ; Xiao WANG ; Zhong-liang YUAN
Chinese Journal of Schistosomiasis Control 2021;33(6):606-614
Objective To analyze the epidemiological characteristics of reported imported malaria cases in Zhengzhou City from 2016 to 2020, so as to provide insights into the management of imported malaria in the city. Methods All data pertaining to cases with definitive diagnosis of malaria in Zhengzhou City from 2016 to 2020 were captured from the National Notifiable Disease Report System and the Information Management System for Parasitic Disease Control in China, including individual demographic data, and malaria onset, initial diagnosis and definitive diagnosis data. All data were descriptively analyzed. The duration from malaria onset to initial diagnosis, from initial diagnosis to definitive diagnosis and from onset to definitive diagnosis was compared among cases. In addition, the diagnoses of imported malaria cases in which definitive diagnosis was made were compared with the reexaminations by Zhengzhou Municipal Malaria Diagnosis Reference Laboratory. Results A total of 302 cases with definitive diagnosis of malaria were reported in Zhengzhou City from 2016 to 2020, and all were imported cases, with Plasmodium falciparum malaria as the predominant type (230 cases, 76.2%). There were 293 malaria cases imported from Africa (293 cases, 97.0%), which mainly included Nigeria (48 cases, 15.9%), Angola (40 cases, 13.2%), and the Democratic Republic of the Congo (29 cases, 9.6%). There was no obvious seasonality found in the date of malaria onset and time of reporting malaria. The ratio of male to female malaria cases was 49.3:1, and there were 103 cases (34.1%) with the current residency address in Zhengzhou City, 193 cases (63.9%) with the current residency address in other cities of Henan Province and 6 cases (2.0%) in other provinces of China. There were 271 cases (89.7%) seeking initial diagnosis in medical institutions, and the diagnostic accuracy of malaria was 56.6% (171/302) at initial diagnosis institutions. A total of 122 cases (40.4%) sought medical care on the day of malaria onset, and 252 cases (86.4%) within 3 days; however, only 22 cases (7.3%) were definitively diagnosed on the day of onset, and 162 cases (53.6%) diagnosed within 3 days. There were no significant differences between malaria cases seeking initial diagnosis at medical institutions and disease control and prevention institutions in terms of the duration from malaria onset to initial diagnosis (Z = −1.663, P > 0.05), from initial diagnosis to definitive diagnosis (Z = −0.413, P > 0.05) or from malaria onset to definitive diagnosis (Z = −0.838, P > 0.05). The median duration (interquartile range) from initial diagnosis to definitive diagnosis of malaria was 3.00 (2.00), 3.00 (6.00), 2.00 (4.00) d and 1.00 (1.00) d among cases seeking medical care at township-level and lower, county-, city- and province-level medical institutions, and the median duration from initial diagnosis to definitive diagnosis of malaria was significantly longer among cases seeking medical care at township-level and lower medical institutions than at city (Z = −3.286, P < 0.008 33) and province-level medical institutions (Z = −9.119, P < 0.008 33), while the median duration from initial diagnosis to definitive diagnosis [1.00 (3.00) d vs. 2.00 (4.00) d; Z = −4.099, P < 0.016] and from malaria onset to definitive diagnosis [3.00 (4.00) d vs. 4.00 (5.00) d; Z = −2.868, P < 0.016] among malaria cases with the current residency address in Zhengzhou City was both shorter than in other cities of Henan Province. The diagnostic accuracy was 89.1% (269/302) among malaria cases in which definitive diagnosis was made, and the accuracy of malaria reexaminations was 94.0% (284/302) in Zhengzhou Municipal Malaria Diagnosis Reference Laboratory. Conclusions P. falciparum malaria was predominant among reported imported malaria cases in Zhengzhou City from 2016 to 2020, and these imported malaria cases were predominantly diagnosed at medical institutions; however, the diagnostic capability of malaria is poor in township-level and lower medical institutions. Strengthening the collaboration between medical institutions and disease control and prevention institutions and improving the diagnostic capability building at medical institutions are recommended to consolidate malaria elimination achivements.
6.Study on the differences between moxibustion at different points in the effects on the anti-fatigue ability of rats undergoing one-time exhaustive swimming
Hai-Long LIU ; Lei GAO ; Ya-Hui ZHANG ; Yu-Lei LIANG ; Tian-Yuan LÜ ; Xin YANG ; Zhi-Guo ZHAO
Journal of Acupuncture and Tuina Science 2020;18(4):256-261
Objective: To observe the effects of moxibustion at Shenshu (BL 23), Zusanli (ST 36) and Shenque (CV 8) on the energy metabolism and endocrine metabolism indicators of rats undergoing one-time exhaustive swimming, and to explore the differences between moxibustion at different points in the effects on anti-exercise fatigue. Methods: Forty-eight male SPF rats were randomly divided into a blank group, a model group, a non-meridian and non-acupoint group, a Shenshu (BL 23) group, a Zusanli (ST 36) group, and a Shenque (CV 8) group using random number table method, with eight rats in each group. Except for the blank group, rats in the other groups were subjected to replicating the one-time exhaustive model using the weight-bearing swimming experiment. Except for the model group, the other model rats received mild moxibustion immediately after swimming. Rats in the non-meridian and non-acupoint group received mild moxibustion at bilateral subcostal non-meridian and non-acupoint points, those in the Shenshu (BL 23) group received mild moxibustion at bilateral Shenshu (BL 23), those in the Zusanli (ST 36) group received mild moxibustion at bilateral Zusanli (ST 36), and those in the Shenque (CV 8) group received mild moxibustion at Shenque (CV 8) for 15 min. Four hours after the exhaustive swimming, femoral artery blood was collected to detect blood lactate (BLA), lactate dehydrogenase (LDH), creatine kinase (CK), creatinine (CRE), blood urea nitrogen (BUN), cortisol (C) and testosterone (T) levels, and calculate the T/C ratio. Results: Compared with the blank group, rat's serum levels of BLA, LDH, CK, BUN and C in the model group and the non-meridian and non-acupoint group were increased, and serum levels of CRE and T, and T/C ratios were decreased (P<0.01 or P<0.05); compared with the model group and the non-meridian and non-acupoint group, the serum levels of BLA, LDH, CK, BUN and C in the Shenshu (BL 23) group, Zusanli (ST 36) group and Shenque (CV 8) group were decreased, and the serum CRE and T levels, and the T/C ratios were increased (all P<0.01); compared with the Shenshu (BL 23) group, the serum CK level was decreased in the Shenque (CV 8) group (P<0.01), the serum levels of T and C were decreased in the Zusanli (ST 36) group and Shenque (CV 8) group (P<0.01 or P<0.05), and the T/C ratio was increased in the Shenque (CV 8) group (P<0.01); compared with the Zusanli (ST 36) group, the serum CK and BUN levels were decreased (P<0.01, P<0.05), and the T/C ratio was increased in the Shenque (CV 8) group (P<0.05). Conclusion: Moxibustion at Shenshu (BL 23), Zusanli (ST 36) and Shenque (CV 8) shows different anti-fatigue effects by regulating the energy metabolism and endocrine metabolism in rats undergoing one-time exhaustive swimming. Moxibustion at Shenshu (BL 23) is better in promoting energy synthesis. Moxibustion at Shenque (CV 8) is more effective in regulating synthesis and decomposition of the skeletal muscle proteins.
7.MiR-124 suppresses the proliferation of human prostate cancer PC3 cells by targeting PKM2.
Lei LÜ ; Jing-Dong YUAN ; Zuo-Liang CAO ; Tao HUANG ; Chuan-Hua ZHANG ; Liang WANG ; Fu-Qing ZENG
National Journal of Andrology 2014;20(6):495-499
OBJECTIVETo explore the mechanism of miR-124 inhibiting the proliferative activity of prostate cancer PC3 cells.
METHODSLuciferase reporter gene assay was used to examine the specific binding ability of miR-124 to PKM2 mRNA 3'-UTR. After miR-124 was transfected mimic to PC3 cells, the expression levels of PKM2 mRNA and protein were detected by real-time fluorescence quantitative PCR (qRT-PCR) and Western blot, respectively. The effects of miR-124 mimic and PKM2 siRNA on the proliferative activity of the PC3 cells were determined by MTT assay.
RESULTSThe expressions of PKM2 mRNA and protein were upregulated (5.12 +/- 0.35) times and (4.05 +/- 0.20) times respectively in the PC3 cells as compared with those in the RWPE-1 cells (P < 0.05). Luciferase reporter gene assay demonstrated that miR-124 targeted PKM2 3'-UTR. At 24 hours after transfection with miR-124 mimic, the PKM2 protein expression in the PC3 cells was downregulated (0.16 +/- 0.04) times (P < 0.05), while the PKM2 mRNA level was not changed significantly (P > 0.05), as compared with the control group. MTT assay showed that both miRNA-124 mimic and PKM2 siRNA could inhibit the proliferation of the PC3 cells, but the former exhibited a greater inhibitory effect than the latter. After transfection with miR-124 mimic and PKM2 siRNA, the cell growth rates were (66.20 +/- 5.10)% vs (82.10 +/- 6.35)% at 24 hours (P < 0.05) and (49.34 +/- 2.37)% vs (70.10 +/- 5.80)% at 48 hours (P < 0.05).
CONCLUSIONmiR-124 can suppress the proliferation of PC3 cells by regulating the PKM2 gene.
Carrier Proteins ; genetics ; metabolism ; Cell Line, Tumor ; Cell Proliferation ; genetics ; Humans ; Male ; Membrane Proteins ; genetics ; metabolism ; MicroRNAs ; genetics ; Prostatic Neoplasms ; genetics ; metabolism ; pathology ; Thyroid Hormones ; genetics ; metabolism ; Transfection
8.Effect of Er:YAG laser on the dynamic changes in subgingival flora in type 2 diabetic patients with periodontitis.
Bin GUO ; Qianqian LIANG ; Yan LÜ ; Min FU ; Yuanyuan CHEN ; Yifang YUAN ; Yingchao LI
West China Journal of Stomatology 2014;32(2):171-176
OBJECTIVETo observe the changes in subgingival microflora before and after Er:YAG laser treatment on diabetic patients with periodontitis, and to compare with the subgingival microflora of chronic periodontitis.
METHODSSubgingival plaque of 13 pairs of teeth (26 sites) was selected from type 2 diabetic patients at pretreatment, one month post-treatment, and three months post-treatment. Subgingival plaque was also obtained from 11 cases of moderate to severe chronic periodontitis with similar severity of periodontitis. The DNA of the subgingival plaque samples was extracted. Whole bacterial 16S rDNA gene fragments separated by denaturing gradient gel electrophoresis. Specific DNA bands were then chosen for retrieval and sequencing.
RESULTSThe gene sequencing results of the special DNA bands of subgingival plaque samples show that the pathogenic bacteria of both diabetic periodontitis and simple chronic periodontitis were Prevotella intermedia and Tannerella forsythia, respectively. The composition of the subgingival microflora before and after laser treatment changed. Some DNA bands, including that of Tannerella forsythia, disappeared or weakened one month after treatment. A new strip appeared, which belonged to Actinomyces sp.
CONCLUSIONThe profiles of the subgingival microflora changed after treatment, and one month was indicated as an important stage. Er:YAG laser may have an important function in delaying microflora recolonization.
Adult ; Bacteria ; Chronic Periodontitis ; Dental Plaque ; Diabetes Mellitus, Type 2 ; Humans ; Lasers, Solid-State ; Periodontitis
9.Effect of tetrandine on gene expression of collagen type I, collagen type III and TGF-beta1 in scar tissue's of rabbits ear.
Xiao-Liang ZHOU ; De-Wu LIU ; Yuan-Gui MAO ; Jing LÜ
Chinese Journal of Plastic Surgery 2013;29(6):406-412
OBJECTIVETo observe the effect of tetrandine on gene expression of collagen type I, collagen type III, transformation growth factor-beta1 and to investigate the inhibitory effect of tetrandine on the scar tissue hyperplasia in rabbits' ears.
METHODSAfter the scar model was formed on the rabbits' ears, the rabbits were divided into 4 groups to receive intro-lesion injection with saline, or prednisolone (Pre) or tetrandrine in low concentration (L-Tet, 1.0 mg/ml) or tetrandrine in high concentration (H-Tet, 7.5 mg/ml). The morphological changes of scar tissue were observed. The changes of fibroblasts quantity and collagen expression were observed with HE and Masson staining. Immunohistochemical study was used to observe the expression level of collagen type I and collagen type III and TGF-beta1. Collagen type I and collagen type III and TGF-beta1, and signal factor Smad 3 mRNA were detected with RT-PCR.
RESULTS(1) 24 days after injury, all the wounds healed completely with formation of red, tough and hypertrophic scar. HE and Masson staining showed significant increase of fibroblasts and collagen density with irregularly arrangement. (2) Compared with that in saline group, the scar in other groups became softer, lighter and thinner, especially in H-Tet group. (3) HE and Masson staining shows the scar in Tet and Pre groups contained less fibroblasts and lower collagen dentsity with comparatively regular arrangement than that in saline group (P < 0.01), especially in H-Tet group. (4) According to the immunohistochemical study, the expression of collage type I and III and TGF-beta was positive in all the groups, but the positive rate and the ratio of collagen density I to III decreased in the order of saline, L-Tet, H-Tet and Pre groups (P < 0.01). (5) PT-PCR detection results showed that the amplification bands brightness of collagen type I and III and TGF-beta1 and signal molecular Smad 3 mRNA in scar tissue were obviously different. Compared with that in saline group, the expression of collagen type I and III and TGF-beta1 and Smad 3 mRNA decreased in Tet and Pre groups (P < 0.01). H-Tet group showed the most obvious reduce in the expression of type I collagen and TGF-beta1 and Smad 3 mRNA. Conclusions Tetrandine can significantly suppress the expression of collagen type I and collagen type III and TGF-beta1 on hypertrophic scar of rabbit ears, and reduce signal factor Smad 3 mRNA' s expression. It may be one of the important mechanism for its inhibitory effect on scar hyperplasia.
Animals ; Benzylisoquinolines ; pharmacology ; Cicatrix, Hypertrophic ; drug therapy ; genetics ; pathology ; Collagen Type I ; genetics ; metabolism ; Collagen Type III ; genetics ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Ear ; Fibroblasts ; Gene Expression ; Male ; RNA, Messenger ; metabolism ; Rabbits ; Smad3 Protein ; genetics ; metabolism ; Transforming Growth Factor beta1 ; genetics ; metabolism
10.Rho-associated coiled kinase inhibitor Y-27632 promotes neuronal-like differentiation of adult human adipose tissue-derived stem cells.
Zhong-wen XUE ; Xiao-ming SHANG ; Hong XU ; Song-hui LÜ ; Tian-wei DONG ; Chao-hui LIANG ; Yuan YUAN
Chinese Medical Journal 2012;125(18):3332-3335
BACKGROUNDY-27632 is a specific inhibitor of Rho-associated coiled kinase (ROCK) and has been shown to promote the survival and induce the differentiation of a variety of cells types. However, the effects of Y-27632 on adult human adipose tissue-derived stem cells (ADSCs) are unclear. This study aimed to investigate the effects of Y-27632 on the neuronal-like differentiation of ADSCs.
METHODSADSCs were isolated from women undergoing plastic surgery and cultured. ADSCs were treated with different doses of Y-27632 and observed morphological changes under microscope. The expression of nestin, neuron specific enolase (NSE) and microtubule-associated protein-2 (MAP-2) in ADSCs treated with Y-27632 was detected by immunocytochemistry and Western blotting analysis.
RESULTSY-27632 had the potency to induce neuronal-like differentiation in ADSCs in a dose-dependent manner. Moreover, the differentiation induced by Y-27632 was recovered upon drug withdraw. ADSCs treated with Y-27632 expressed neuronal markers such as NSE, MAP-2 and nestin while untreated ADSCs did not express these markers.
CONCLUSIONSelective ROCK inhibitor Y-27632 could potentiate the neuronal-like differentiation of ADSCs, suggesting that Y-27632 could be utilized to induce the differentiation of ADSCs to neurons and facilitate the clinical application of ADSCs in tissue engineering.
Adipose Tissue ; cytology ; Adult ; Amides ; pharmacology ; Cell Differentiation ; drug effects ; Cells, Cultured ; Female ; Humans ; Neurons ; cytology ; Pyridines ; pharmacology ; Stem Cells ; cytology ; drug effects

Result Analysis
Print
Save
E-mail