1.Study of Diallyl trisulfide affection on human colonic carcinoma HT29 cells proliferation and its mechanisms
Xuping WANG ; Ling ZHAO ; Rong WANG ; Feng GUO
Chinese Journal of Current Advances in General Surgery 1999;0(04):-
Objective: To study the affection of Diallyl trisulfide on cultured human colon carcinoma cell line HT-29 and its mechanism. Methods: The viability of cells after various treatments were determined using the method of MTT. Flow cytometry were used to analyze the change of cell cycle and Bcl-2, Bax levels. Results: The proliferation of human colon carcinoma HT-29 cells were inhibited by Diallyl trisulfide. The inhibition was associated with dose and time dependence. Flow cytometry results showed that: 1) When cells were treated with Diallyl trisulfide at the concentration of 10 ?g/mL for 12 h and 24 h, the percentage of G0/G1 phase cells was decreased and that of G2/M phase cells was significantly increased compared with those in the control group.2) Diallyl trisulfide down regulated Bcl expression, while up-regulated bax expression. Conclusions: It was suggested that Diallyl trisulfide inhibited HT29 cell proliferation. And these were associated with arrest of cell cycles and down regulation of Bcl2/Bax ratio.
2.Effects of metal or dissolving microneedles and its parameters of operation on the formation and closure of skin microchannels
Rong-rong LI ; Yuan WANG ; Yong LIU ; Yan-ni WANG ; Zhe LIU ; Feng-sen MA
Acta Pharmaceutica Sinica 2021;56(4):1163-1169
To investigate the influence factors and effects of metal or dissolving microneedles on the formation and healing of skin microchannels, the pencil-shaped or conical stainless steel microneedles with different lengths, tip to tip space and base area, and the pencil-shaped dissolving microneedles with different tip to tip space were used. The microneedles were applied to the skin of epilatory mice and rats, and the effects of various microneedle parameters, application parameters, and animals on the microchannels were explored by the transepidermal water loss (TEWL) and methylene blue staining. Visually observe the skin local irritation caused by the microneedles. The animal experiments were approved by the Animal Experiments Welfare and Ethical Committee of Zhejiang University of Technology. The application time of the microneedle should be maintained at 30 s or more. When the insertion forces were 2, 4, 8 N, and the TEWL initial values of the formed microchannels were 12.9, 33.0, 40.4 g·m-2·h-1, respectively. When the length of metal microneedle were 400, 600, 800 μm, and the TEWL initial values of the formed microchannels were 37.1, 40.4, 49.5 g·m-2·h-1, respectively. When the tip to tip space of metal microneedle were 400, 600, 800 μm, and the TEWL initial values of the formed microchannels were 33.2, 40.4, 55.8 g·m-2·h-1, respectively. When the base area of metal microneedle were 0.16, 0.35, 0.62 cm2, and the TEWL initial values of the formed microchannels were 35.1, 40.4, 67.1 g·m-2·h-1, respectively. The effects of conical and pencil-shaped microneedles are similar. When the tip to tip space of pencil shaped dissolving microneedle were 400, 600, 800 μm, and the TEWL initial values of the formed microchannels were 49.8, 60.5, 70.5 g·m-2·h-1, respectively. The TEWL baseline values of animal skins of different genders and series are different, but the tendency of microchannels formation and closure is similar. Visual inspection revealed that the slight erythema caused by the microneedles subsided within 24 h. Microneedles of different parameters have different effects on microchannels. The microchannels closed within 24 or 48 h, and the skin local irritation caused by microneedle was mild.
4.Study on the plant estrogen in Chinese herbal medicine.
Ruo-guang WANG ; Zhao-ling YOU ; Guang-rong FENG
Chinese Journal of Integrated Traditional and Western Medicine 2004;24(2):169-171
Drugs, Chinese Herbal
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chemistry
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Humans
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Isoflavones
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isolation & purification
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pharmacology
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Phytoestrogens
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Plant Preparations
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isolation & purification
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pharmacology
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Plants, Medicinal
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chemistry
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Platelet Aggregation Inhibitors
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isolation & purification
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pharmacology
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Pueraria
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chemistry
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Scutellaria baicalensis
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chemistry
6.Study on the effects of tiotropium inhalation capsules on treating adult asthma
Wenling LUO ; Ruiqin WANG ; Feng YAN ; Shanhua CAI ; Rong CUI
Clinical Medicine of China 2012;28(9):945-949
ObjectiveTo observe the efficacy and safety of inhaled tiotropium capsule on adult bronchial asthma.MethodsThirty-four adult asthma patients were randomized into two groups.We evaluated the addition of tiotropium bromide to an inhaled glucocorticoid in the treatment group( n =17 ),as compared with the addition of the LABA Formoterol in the control group ( n =17 ).Serial measurements of lung function,symptom control and quality of life were performed.ResultsAfter 8 weeks of treatment,peak expiratory flow (PEF) in the addition of tiotropium bromide group[ ( 359 ± 12 ) L/min vs.( 275 ± 5 ) L/min,P < 0.05 ] and the addition of the LABA Formoterol group [ ( 346 ± 11 ) L/min vs.( 275 ± 9 ) L/min,P < 0.05 ] were significantly higher than those before treatment.The forced expiratory volumes in one second ( FEV1 )were also significantly elevated in both groups [ Tiotropium bromide group:( 2.80 ± 0.28 ) L vs.( 2.30 ± 0.28 ) L,P < 0.05 ; LABA Formoterol group:( 2.69 ± 0.34 ) L vs.( 2.25 ± 0.34 ),P < 0.05 ] compared with pre-treatment.Average dose of emergent drug ( ventolin ) usage were decreased in both groups after treatment [ Tiotropium bromide group:(0.96 ± 0.34 ) puff/d vs.(4.11 ± 1.03 ) puff/d,t =3.05,P < 0.05 ; LABA Formoterol group:( 0.88 ± 0.44 )puff/day vs.( 4.43 ± 0.87 ) puff/day,t =3.23,P < 0.05 ].Meanwhile,significantly improved quality of life scores and alleviation of asthma symptom were found in both groups as compared with baseline ( P < 0.05).However,no significant differences in the above variables after treatment were found between two groups( P >0.05 ).ConclusionWhen added to an inhaled glucocorticoid,tiotropium improved symptoms and lung function in patients with inadequately controlled asthma.Its effects appeared to be equivalent to the addition of Formoterol.
7.Prevention and Treatment of Ventilator-associated Pneumonia:Their Characteristics
Feng YAN ; Yijing FU ; Wenling LUO ; Rong CUI ; Ruiqin WANG
Chinese Journal of Nosocomiology 2005;0(11):-
50.0% and increased year by year,the rate of aminoglycoside resistance
8.Expression of FHITmRNA and WWOXmRNA in human breast cancer and their clinical significance
Tiantian WANG ; Rong MA ; Haidong GAO ; Lubing TANG ; Jinbo FENG
Chinese Journal of General Surgery 2001;0(09):-
Objective To investigate the expression of FHITmRNA and WWOXmRNA in human breast cancer tissues and its relation to clinicopathological and other molecular parameters. Methods With reference to the expression of ?-actin,the expression of FHITmRNA and WWOXmRNA was determined by reverse (transcription)-polymerase chain reaction(RT-PCR) in 51 breast cancer and adjacent breast tissue, and (semi-quantitative) analysis of band densities was performed. The protein expression of estrogen receptor(ER), progesterone receptor (PR), Her-2 gene in the 51 breast cancer lesions was detected by (immunohistochemical) method. Results FHITmRNA and WWOXmRNA expression was significantly different in 54 breast cancer tissue compared to adjacent breast tissue (P0.05); of FHITmRNA and WWOX mRNA was related to axillary lymph node metastasis (P
9.Survey of personality traits , anxiety and depression in patients with leukemia
Qingfeng RONG ; Lianrong XU ; Feng TIAN ; Hongmei WANG
Journal of Leukemia & Lymphoma 2017;26(6):349-352
Objective To investigate the personality traits, anxiety and depression in patients with leukemia. Methods A cross-sectional survey was performed in 120 patients with leukemia and 118 age and gender-matched controls. Personality was assessed using the Type A Behavior Pattern Questionnaire (TABPQ). Emotion was ascertained using the self-rating anxiety scale (SAS) and self-rating depression scale (SDS). The relationship between personality type A and anxiety and depression was evaluated by Pearson correlation analysis. Results The prevalence of personality type A was significantly higher in patients with leukemia than healthy controls [71.67 % (86/120) vs. 30.51 % (36/118), P< 0.01]. Patients with leukemia also had higher prevalence of anxiety and depression compared with healthy controls [36.67%(44/120) vs. 9.32%(11/118), P< 0.01; 29.17 % (35/120) vs. 5.93 % (7/118), P< 0.01]. Pearson correlation analysis showed that time-hurry (TH) and competition-hostility (CH) of personality type A correlated positively with anxiety (r=0.292, r= 0.277, respectively; both P< 0.05). Conclusion TH and CH of personality type A are associated with anxiety in leukemia patients.
10.Screening of KIF21 A gene mutation in a Han family with concomitant exotropia
Hui, WANG ; Yong-Rong, LI ; Feng-Tao, JI
International Eye Science 2017;17(10):1973-1975
AIM:To study the KIF21A gene mutation in a Han family with concomitant exotropia. ·METHODS: The genomic DNA of five family members was extracted from peripheral blood leukocytes and amplified with PCR. The PCR products were purified for DNA sequencing. DNA sequences were aligned with the human KIF21A gene sequences registered in GenBank. · RESULTS: Mutation analysis of all exons of the pedigree's KIF21A gene reveals no gene mutation in any of the families. ·CONCLUSION: Our study demonstrates that the KIF21A gene maybe is not virulence gene in this pedigree.