1.Inhibitory Effect of Xanthoxylin on Blood Platelet Aggregation in Rabbits
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(06):-
Turbidimetry was used to examine the inhibitory effect of Xanthoxyin on adenosine diphosphate (ADP)-, arachidic acid (AA )- and thrombin-induced platelet aggregation in rabbits. In-vitro experiment showed that Xanthoxyin 0.037,0.l85,0.924,9.240,92.40?mol. L -1 , can significantly inhibit ADP-, AA- and thrombin-induced platelet aggregation. The inhibition rates were 22.4%-70.l%,l5.3%-68.2% and 25.8%-74.6% respectively. In-vivo experiment showed that Xanthoxylin (ig. 5 mg/kg) cand also inhibited ADP-, AA-and throbin-induced platelet aggregations. The inhibition rates were 2l.0%,35.7%,50.9% and 32.7% in ADP-induced group,23.2%,46.3%,52.4% and 4l.6% in AA-induced group, and 26.7%, 44.5%,6l.6% and 54.2% in thrombin-induced group respectively l5,30, 60 and 90 minutes after ig. Xanthoxylin.
2.Expression of P16/cyclin D1 and their relationship with cervical lymph node metastasis of tongue carcinoma
Yuanyuan ZHANG ; Cheng WANG ; Yuxin WANG
Journal of Practical Stomatology 2000;0(06):-
0.05),cyclin D1 was positively and P16 negatively associated with the differentiation and the lymph node metastasis of tongue cancer(P
3.Effects of GPRC5A on proliferation, oxidative stress and apoptosis of laryngeal cancer cells
Yuanyuan TAN ; Kahaer KAYISAIER ; Xiuqin CHENG
Journal of Chinese Physician 2021;23(3):359-365
Objective:To investigate the effect and mechanism of G protein-coupled receptor, class C, group 5, member A (GPRC5A) on the proliferation and apoptosis of laryngeal cancer cells (LCC).Methods:From June 2015 to December 2018, 22 patients with laryngeal cancer were selected from the People's Hospital of Xinjiang Uygur Autonomous Region. Tumor tissue samples and paracancerous tissue were collected. The expression of GPRC5A in laryngeal cancer tissues and laryngeal cancer cells was detected by real-time fluorescent quantitative polymerase chain reaction (qRT-PCR) and Western blot; pcDNA3.1-GPRC5A and control plasmid pcDNA3.1 were transfected into Hep-2 and AMC-HN-8 cells respectively. Methyl thiazolyl tetrazolium (MTT) assay was used to detect the effect of GPRC5A on the proliferation of laryngeal cancer cells; V-FITC/PI assay was used to detect the effect of GPRC5A on the apoptosis of laryngeal cancer cells; DCFH-DA was used to detect the level of reactive oxygen species (ROS) in laryngeal cancer cells; Western blot was used to detect the protein expression of vascular endothelial growth factor (VEGF), E-cadherin and vimentin in laryngeal cancer cells.Results:(1) The expression of GPRC5A in laryngeal carcinoma tissues and laryngeal carcinoma cells was lower than that in adjacent tissues and normal laryngeal epithelial cells ( P<0.05). (2) Overexpression of GPRC5A could inhibit the proliferation of laryngeal cancer cells and the expression of VEGF, E-cadherin and vimentin ( P<0.05); overexpression of GPRC5A could significantly increase the level of ROS, decrease the level of NAD + and adenosine triphosphate (ATP) ( P<0.05), increase the apoptosis rate ( P<0.05), and significantly increase the protein expression of Caspase-3 and Caspase-9 ( P<0.05). Overexpression of GPRC5A could inhibit the expression of signal transducer and activator of transcription 3/suppressor of cytokine signal transduction 3/myelocytomatosis oncogene (STAT3/SOCS3/C-MYC) pathway related proteins ( P<0.05); the expression of GPRC5A in 22 patients with laryngeal cancer were negatively correlated with STAT3 ( P<0.05). (3) STAT3 and C-MYC inhibitors significantly inhibited the expression of VEGF and E-cadherin in Hep-2 cells ( P<0.05), promoted apoptosis ( P<0.05), decreased the level of interleukin (IL)-6 in Hep-2 cells ( P<0.05), and significantly increased the level of ROS in Hep-2 cells. Conclusions:It suggests that GPRC5A inhibits proliferation and epithelial-mesenchymal transition (EMT), induces oxidative stress and apoptosis of LCC cells potentially by regulating STAT3/SOCS3/C-MYC signaling. These results provide a molecular basis for clinical treatment and diagnosis of laryngeal cancer.
4.INFLUENCE OF ENDOSTATIN AND PF-4 ON LYMPHANGIOGENESIS
Fangmin XIE ; Yuanyuan CHENG ; Xujian SHAO
Acta Anatomica Sinica 1957;0(04):-
Objective Try to discover the safe and effective inhibitors of lymphangiogenesis. Methods Lymphatic endotheial cells from pig thoracic duct were isolated and cultured. The observation of specimens by LM and EM was made. The control group, endostatin and PF-4 experimental groups were set. Methods of the scraped line and MTT were used to examine their inhibitive effect on the lymphangiogenesis. Results The P value is
5.Radiation combination with DDP plus tegafur treated for advanced esophageal cancer
Jianzhe LI ; Xinli ZHANG ; Ruihua TIAN ; Yuanyuan CHENG
Cancer Research and Clinic 2001;0(02):-
Objective To study on the curative effect of DDP and Tegafur plus radiation for advanced cancer of esophagus. Methods 148 Patients with advanced cancer of esophagus were randomized into two groups(each 74), one group were accepted radical radiotherapy followed by DDP and Tegafur (chemoradiotherapy group),the other group were accepted radical radiotherapy only (radiotherapy group), radiotherapy in both groups was similar (60 ~ 65 Gy/6~6.5 W with routine fractionation). Results The effect was 81.1 % in radiotherapy group and 90.5 % in chemoradiotherapy group, the difference in effect was no statistically significant (?2=2.719, P =0.09), The 1, 3 and 5-year survived rates were 43.2 %, 16.2 %, 9.5 % respectively in radiotherapy group and 71.6 %, 33.8 %, 21.6 % respectively in chemoradiotherapy group. The survival rates in chemoradiotherapy group were all higher than that in radiotherapy group, the difference in effect was statistically significant(?2=8.684, P
6.The clinical significance and biological function of microRNA-106b in thyroid cancer
Yuanmei LI ; Limin SUN ; Yuanyuan WANG ; Boning CHENG
Chinese Journal of Endocrine Surgery 2017;11(1):60-64
Objective To investigate clinical significance and function of microRNA-106b (miR-106b) in retinoblastoma tissues and cells.Methods We detected miR-106b expression in 51 samples of thyroid cancer and the adjacent non-tumor tissues using qRT-PCR.The expression of miR-106b was altered by corresponding vectors in thyroid cancer cells,and then BrdU cell proliferation and flow cytometry assay were performed to examine the proliferation and apoptosis of thyroid cancer cells.Results The expression of miR-106b in thyroid cancer tissues was significantly lower than that in normal tumor-adjacent tissues (0.36±0.029 vs 0.98±0.034,P= 0.004).MiR-106b expression in tumor tissues was significantly associated with tumor size and tumor number.MiR-106b was obviously inhibited by miR-106b inhibitor in PTC-I cells (0.96±0.025 vs 0.29±0.032,P=0.001),and inhibition of miR-106b resulted in significantly increased proliferation (89.33±5.67 vs 136.67±10.33,P=0.03) and decreased apoptosis (16.33±3.20 vs 7.67±2.45,P=0.04).On the contrast,over-expression of miR-106b using miR-106b mimics led to significantly decreased proliferation (98.00±4.65 vs 76.33±2.87,P=0.03) and increased apoptosis (22.54±2.13 vs 32.45±4.34,P=0.04).Conclusions Decreased expression of miR-106b is correlated with the adverse clinicopathological features of thyroid cancer.MiR-106b can inhibit cell proliferation and apoptosis of thyroid cancer cells,suggesting miR-106b plays a suppressive role in development and progression of thyroid cancer.
7.Suicide ideation and related factors in old patients with depressive disorder
Yuanyuan CHENG ; Yue WANG ; Xue LIU ; Weizhen CUI
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(11):1005-1007
Objective To explore the suicide ideation and related factors in elderly with depressive disorder.Methods A sample of 60 old patients meeting the criteria of ICD-10 for depressive disorder and 60 normal controls were assessed by the Self-rating Idea of Suicide Scale(SIOSS),Trait Coping Style Questionnaire (TCSQ),Self-Rating Anxiety Scale(SAS),Self-Rating Depression Scale(SDS) and Pittsburgh Sleep Quality Index(PSQI).Results The score of despair factor,optimistic factor,sleep factor,conceal factor and total score of SIOSS in patients with depressive disorders (6.22±3.28,2.43± 1.47,1.87± 1.58,1.17± 1.1 1 and 10.51±4.91,respectively) were significantly higher than those of normal controls(t=5.83-14.03,P<0.01).The scores of SIOSS in patients were significantly positively related with the scores of SAS,SDS,PSQI and N C (r=0.311-0.792,all P<0.05),but negatively related with the scores of PC(r=-0.761,P<0.01).Moreover,regression analysis showed that the suicide ideation was increased in accordance with serious depression,anxiety,sleep quality,higher level of education and decreased ability to positive response in elderly with depressive disorder(R 2=0.853,F=62.768,P<0.01).Conclusion The suicide ideation in elderly with depressive disorder is more serious than that of normal people,and may be influenced by depression,anxiety,sleep quality and coping style.
8.Clinical efficacy of combined procedures for the surgical correction of congenital ptosis accompanied by epicanthus
Jianxia CHENG ; Lan ZUO ; Fuqiang LI ; Yuanyuan DU
Chinese Journal of Medical Aesthetics and Cosmetology 2015;21(4):208-211
Objective To observe the effects of combined surgeries for the correction of congenital ptosis accompanied by epicanthus.Methods 80 cases (105 eyes) of congenital ptosis were analyzed in this study.64 cases (80 eyes),with levator muscle strength more than 4 mm,were treated with suspension of frontal aponeurosis,and 16 cases (25 eyes),with levator muscle strength less than 4 mm,were treated with shorten operation of levator palpebrae superioris.Furthermore,all these patients were corrected the epicanthus at the same time.Results Except the under correction in 5 cases (8 eyes),the remaining patients were corrected satisfactorily.Postoperative palperbal fissure length was averagely increased by 2.0± 1.0 mm,inner canthic diameter was averagely decreased by 4.0± 2.0 mm,the eyelid height was increased by average 9.0±1.0 mm,the inclination of palpebral fissure was 12.0°±2.0°;64 cases (80 eyes) were treated with suspension of frontal aponeurosis,postoperative recurrence were 7.5% (6/80),no postoperative recurrence were 92.5% (74/80),complication were 5.0% (4/80);16 cases (25 eyes) were treated with shorten operation of levator palpebrae superioris,postoperative recurrence were 8.0% (2/25),and no postoperative recurrence were 8.0% (2/25);complication rates were 4.0% (1/25).Conclusions This procedure of combined surgeries can reduce the recurrence rate effectively.Moreover,the satisfactory,functional,and aesthetic results can be obtained simultaneously with this method.
9.Individualized surgical treatment of congenital entropion
Lan ZUO ; Jianxia CHENG ; Xinyu HUANG ; Yuanyuan DU
Chinese Journal of Medical Aesthetics and Cosmetology 2015;21(4):212-215
Objective To evaluate the clinical effect of the individualized treatment of congential entropion.Methods Totally 150 patients (285 eyes) with congenital entropion were analyzed,the individualized procedures were performed,including the simple incision and suture surgery for simple congenital entropion,removing the redundant skin of lower eyelid for congenital entropion with redundant skin of lower eyelid but without epicanthus,the correction of entropion combined withY-V epicanthoplasty for congenital entropion with epicanthus and the recession of lower eyelid retractor for congenital entropion with lower eyelid retraction.The clinical effect,the percentage of cure and the complication of these cases were evaluated.Results The excellent results were achieved and no relapse or complications occurred in all cases.The total cure rate was 98.6% (281 of 285 eyes).The cure rate of simple congenital entropion was 92.0% (23 of 25 eyes).The cure rate of congenital entropion with redundant skin of lower eyelid was 100% (41 of 41 eyes).The cure rate of congenital halflength entropion accompanied by epicanthus was 99.4 % (179/180 eyes).The cure rate of congenital entropion associated with lower eyelid retraction was 97.4% (38 of 39 eyes).Conclusions Individualized operations not only have well curative effect for various congenital entropions,but recurrence rate and complications have been reduced.
10.Application of pattern plastic plate and red color stimulation in continuous video-electroencephalography monitoring
Yuanyuan RUAN ; Zhisheng LIU ; Cheng LI ; Jun JIANG ; Yuji WANG
Chinese Journal of Applied Clinical Pediatrics 2015;30(12):921-924
Objective To evaluate the clinical efficiency of intermittent photic stimulation (IPS) with pattern and red color plastic plates in video-electroencephalography(EEG).Methods Three hundred and fifty-eight patients hospitalized in Wuhan Children's Hospital from March 2013 to March 2014 were selected,and they were examined by using stroboscope with a red plastic plate,a dots printed plastic plate,and ordinary white flicker for photic driving response (PDR),photoparoxysmal responses (PPR),photoconvulsive response (PCR).The results of patients with PDR,PPR,PCR were analyzed.Results The PDR synchronously evoked by the three flickering patterns were in 29 cases,and the amplitude of photic drivings evoked by ordinary white flicker and red flicker were higher than that of flickering dot pattern [(30.294 ± 7.767) μV,(31.103 ± 8.920) μV vs (24.436 ± 8.075) μV],and there were significant differences(t =2.983,2.815,P =0.003,0.008).However,there was no significant difference between ordinary white flicker and red flicker (t =0.368,P =0.710).The PPR evoked were in 17 cases,and 16 cases (94.12%) of them were evoked by red color,while 10 cases (58.82%) wcre evoked by white light,and 1 case only evoked by flickering dot pattern.However,stronger intensity and longer duration time of PPR were evoked by red color than by white light.In 3 patients with positive PCR,the epileptic seizure was more likely to be evoked by red color or pattern plastic plate.Conclusions IPS with red and pattem plastic plate is more potent in eliciting photosensitive epilepsy in video-EEG than the ordinary white light.Moreover,it could reduce the discomfort of eyes without influencing PDR in comparison to the ordinary white light.