1.The treatment effect of two transplantation of pteryginm combine mitomycin C
Yugeng HUANG ; Dingguo QIAN ; Wenyu HU
Chinese Journal of Primary Medicine and Pharmacy 2008;15(4):572-573
Objective To compare the treatment effect of amniotie membrane transplantation(AMT) combine mitomycin C(MMC) and corneal limbal stem cell autograft transplantation combine mitomycin C surgery.Methods 234 pterygium patients(239eye) were randomly divided into two groups: routine resection and AMT combine mitomycin C,limbal epithelial autograft transplantation combine mitomycin C. Results The recrudescnce (3.25 % ) of AMT combine mitomycin C is lower than routine resection and limbal epithelial autograft transplantation combine mitomycin C(4.31% ). But there was no significant difference between these two groups. Conclusion The treatment of AMT combine mitomycin C is as good as Iimbal epithelial autograft transplantation combine mitomyein C and the recrudescnce is lower.
2.Prevalence and correlation factors of cardiovascular damage in patients with diabetic nephropathy and non-diabetic nephropathy
Wenyu GONG ; Fanna LIU ; Bo HU ; Lianghong YIN
Chinese Journal of Nephrology 2017;33(7):510-516
Objective To investigate the prevalence and correlation factors of cardiovascular damage in patients with diabetic nephropathy (DN) and non-diabetic nephropathy (NDN).Methods A total of 278 chronic kidney disease (CKD) patients admitted to the First Affiliated Hospital of Jinan University from January 2014 to May 2016 were enrolled,including 78 case of DN and 200 case of NDN.Patients had cardiac and carotid ultrasonography test by colour doppler ultrasonography,and their clinical and biochemical data were collected.Multiple linear regression analysis and multivariable logistic regression analysis were applied to study the correlation factors of cardiovascular damage in CKD patients.Results Mean age was 48.22 years in the 278-patient cohort,which included 178(64.03%) men.Compared with NDN group,DN patients had higher left atrial dimension,interventricular septal thickness,left ventricular end-diastolic dimension,left ventricular posterior wall thickness,left ventricular mass index (LVMI),carotid intima-media thickness (cIMT) and carotid plaques ratio.Their estimated glomerular filtration rate (eGFR) and the ratio between the peak speed of the early filling wave and that of the atrial contraction wave (E/A ratio) were however lower (all P < 0.05).Prevalence of left ventricular hypertrophy (LVH),left ventricular relaxant function reduction and cIMT thickening in DN group were 67.95%,70.27% and 57.14%,higher than those in NDN group (40.00%,42.31% and 17.39%,respectively) (all P< 0.05).Along with the progress of CKD,LVMI and LVH proportion in patients with DN and NDN increased gradually.LVMI and LVH proportion in DN patients in CKD 1-2 phase and CKD 3-4 phase were higher than those in NDN patients (all P < 0.05).In all CKD phases,cIMT and cIMT thickening proportion in DN group were higher than those in NDN group (all P < 0.05).Just in CKD 1-2 phase,DN group had lower E/A ratio and higher proportion of left ventricular relaxant function reduction than NDN group (all P < 0.05).After multiple linear regression analysis,gender,BMI,hemoglobin,eGFR and DN were related with LVMI;age,serum calcium and DN were related with E/A ratio;age and DN were related with cIMT (all P < 0.05).In multivariate logistic regression,DN,hemoglobin and eGFR decrease were independently associated with LVH;age and BMI were independently associated with reduction of left ventricular relaxant function;age and DN were independently associated with cIMT thickening in all CKD patients (all P < 0.05).Conclusions DN patients have more severe cardiovascular damage than NDN patients,and DN may be associated with LVMI,E/A ratio,cIMT,LVH and cIMT thickening in all CKD patients.
3.Effects of MAGEA3 inhibition by shRNA on apoptosis in human hepatocellular cancer cells
Wenyu LI ; Ailin GUO ; Suqing YANG ; Shaowei HU ; Jianming WEN
Chinese Journal of Pathophysiology 2000;0(12):-
AIM: To investigate the inhibitory effect of vector-based RNA interference(RNAi) on the expression of melanoma associated antigen A3(MAGEA3) protein in hepatocellular carcinoma cells and on apotposis of hepatocellular carcinoma cells.METHODS: A vector for transcribing specific small hairpin RNA(shRNA) targeting MAGEA3 gene was constructed,introduced into hepatocellular carcinoma MEL-ED1 cells by Lipofectamine 2000.The MAGEA3 protein and mRNA expression levels of MEL-ED1 cells were detected by Western blotting and RT-PCR, respectively.The cell apoptosis was studied by DNA fragmentation,electron microscopy,TUNEL assay,and annexin V/PI staining.RESULTS: The vector of RNA interference was successfully constructed and MAGEA3 expression was descreased significantly in MEL-ED1 cells.After the shRNA expression vector was transfected into the MEL-ED1 cells,the expression of MAGEA3 gene was inhibited significantly(by 90%).DNA fragmentation,electron microscopy and TUNEL assay showed classic apoptosis characters in the MEL-ED1 cells transfected with pSilencer-MAGEA3 plasmid with an apoptosis rate of 21.41% ?1.98%,significantly higher than those in the negative control group transfected with pSilencer-neo and in the non-transfected group(both P
4.Role of miRNA-24 in regulation of endothelial nitric oxide synthase ex-pression and vascular endothelial cell proliferation
Wenyu ZHANG ; Hui WANG ; Yumei LI ; Wei CHEN ; Nan HU ; Hesheng OU
Chinese Journal of Pathophysiology 2014;(8):1415-1420
[ABSTRACT]AIM:ToinvestigatewhethermiRNA-24isinvolvedintheregulationofendothelialnitricoxide synthase ( eNOS ) expression and vascular endothelial cell proliferation .METHODS: A plasmid that highly expressed miRNA-24 was constructed, and was transfected into the human umbilical vein endothelial cells (HUVECs) by liposome. The cell proliferation was detected by MTT assay .The expression of eNOS and Sp 1 at mRNA and protein levels was exa-mined by real-time PCR, immunohistochemistry and Western blotting .RESULTS:Compared with control group , the pro-liferation of endothelial cells in miRNA-24 group was significantly decreased by 41.97 % (0.47 ±0.04 vs 0.81 ±0.03, P<0.01), and the expression of eNOS at mRNA and protein levels was decreased by 44.8% (0.48 ±0.01 vs 0.87 ± 0.03, P<0.05) and 71.92%(0.16 ±0.06 vs 0.57 ±0.08, P<0.05), respectively.Meanwhile, the mRNA and pro-tein levels of Sp1 were significantly decreased by 53.00% (0.45 ±0.02 vs 0.93 ±0.01, P<0.05) and by 62.31%(0.13 ±0.07 vs 0.31 ±0.09, P<0.05), respectively.In miRNA-24 inhibitor group, the above indexes were decreased compared with control group , but significantly increased compared with miRNA-24 group.CONCLUSION: miRNA-24 significantly inhibits the proliferation of HUVECs and the eNOS expression .Sp1 possibly acts as one of the important factors in the regulation of eNOS expression by miRNA-24.
5.Development of automatic machine for ampoules rinsing and drying and drug succus filling in field condition
Linkuan WANG ; Cunsheng QIAN ; Baomin HAN ; Yun CHEN ; Wenyu SHI ; Yongsheng HU
Chinese Medical Equipment Journal 1993;0(06):-
Objective To develop an automatic machine used for rinsing and drying ampoules and filling drug succus in field condition. Methods By using the microcomputer integrated with photoelectric-machinery technique,a full-automatic and continuous production line are formed including such working procedures as delivery,inspection,rinsing,drying,perfusing,topping,sealing,counting on,etc. Results It can implement series of operations described above on a continuous and automatic production line for producing 5,10,20 and 30ml drug succus instead of tedious,manual operations and complicated devices. Conclusion This machine can save 75% of labor and equipment,and 90% of water-electric power and bottles,which is suitable not only for common use but also for field army use.
6.Tafamidis, a Noninvasive Therapy for Delaying Transthyretin Familial Amyloid Polyneuropathy: Systematic Review and Meta-Analysis.
Yinan ZHAO ; Yanguo XIN ; Zhuyin SONG ; Zhiyi HE ; Wenyu HU
Journal of Clinical Neurology 2019;15(1):108-115
BACKGROUND AND PURPOSE: Tafamidis functions to delay the loss of function in transthyretin familial amyloid polyneuropathy (TTR-FAP), which is a rare inherited amyloidosis with progressive sensorimotor and autonomic polyneuropathy. This systematic literature review and meta-analysis evaluated the efficacy and safety of tafamidis in TTR-FAP patients, with the aim of improving the evidence-based medical evidence of this treatment option for TTP-FAP. METHODS: A systematic search of the English-language literature in five databases was performed through to May 31, 2018 by two reviewers who independently extracted data and assessed the risk of bias. We extracted efficacy and safety outcomes and performed a meta-analysis. Statistical tests were performed to check for heterogeneity and publication bias. RESULTS: The meta-analysis identified six relevant studies. The tafamidis group showed smaller changes from baseline in the Neuropathy Impairment Score–Lower Limbs [mean difference (MD)=−3.01, 95% confidence interval (CI)=−3.26 to −2.75, p < 0.001] and the Norfolk Quality of Life-Diabetic Neuropathy total quality of life score (MD=−6.67, 95% CI=−9.70 to −3.64, p < 0.001), and a higher modified body mass index (MD=72.45, 95% CI=69.41 to 75.49, p < 0.001), with no significant difference in total adverse events [odds ratio (OR)=0.69, 95% CI=0.35 to 1.35, p=0.27]. The incidence of adverse events did not differ between tafamidis and placebo treatment except for fatigue (OR=0.13, 95% CI=0.02 to 0.72, p=0.02) and hypesthesia (OR=0.16, 95% CI=0.03 to 0.92, p=0.04). CONCLUSIONS: This systematic review and meta-analysis has demonstrated that tafamidis delays neurologic progression and preserves a better nutritional status and the quality of life. The rates of adverse events did not differ between the patients in the tafamidis and placebo groups. Tafamidis might be a safer noninvasive option for patients with TTR-FAP.
Amyloid Neuropathies
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Amyloid Neuropathies, Familial*
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Amyloidosis
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Bias (Epidemiology)
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Body Mass Index
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Extremities
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Fatigue
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Humans
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Hypesthesia
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Incidence
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Nutritional Status
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Polyneuropathies
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Population Characteristics
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Prealbumin*
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Publication Bias
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Quality of Life
7.Investigation for Department of Rehabilitation Medicine in Guangxi, China
Mai LEI ; Jianrong YANG ; Wei TAN ; Caiyou HU ; Wenyu JIANG ; Wei LIN ; Lizhen QIN ; Qingcheng YANG ; Min WU
Chinese Journal of Rehabilitation Theory and Practice 2016;22(9):1110-1113
Objective To investigate the present situation of institutes of rehabilitation medicine in Guangxi. Methods From March to July, 2015, all 287 hospitals in Guangxi were investigated with the Human Resource Statistics of Guangxi Rehabilitation Medicine Depart-ment and the Specialist Questionnaire of Guangxi Rehabilitation Medicine Department by E-mail through the local Health and Family Plan-ning Commissions. Results There were 125 rehabilitation medicine departments with 2146 personnels in Guangxi, 0.2 therapists per bed in average. The proportion was 1∶0.725 for rehabilitative physicians to therapists;1∶1.92∶3.14 for senior, intermediate and primary title for physicians;1∶8∶63 for therapists and 1∶5.6∶18.9 for nurses. About 91.3%of the department of rehabilitation medicine was in the tertia-ry hospitals and was able to provide the services of physical therapy, occupational therapy, speech therapy, swallowing rehabilitation, cogni-tive rehabilitation, psychological therapy and rehabilitation engineering, and so on. Conclusion Rehabilitation has made a big progress com-pared with that in 2009 in Guangxi, in term of institutes, human resources and the service ability. However, the distribution of institutions and human resources remains unbalanced.
8.Determination of formaldehyde and glyoxal in varenicline tartrate using derivative method with HPLC
Yitong GUAN ; Pengwei HU ; Wenyu ZOU ; Yuting LU ; Min SONG ; Taijun HANG
Journal of China Pharmaceutical University 2021;52(3):332-338
To establish a method for the determination of formaldehyde and glyoxal simultaneously in varenicline tartrate active pharmaceutical ingredient (API) and its intermediate, formaldehyde and glyoxal were derivatized by 2, 4-dinitrophenylhydrazine (2,4-DNPH) to improve the HPLC retention and UV detection sensitivity. Separation was performed on a C8 (150 mm × 4.6 mm, 5 μm) column by linear gradient elution using acetonitrile and water as the mobile phase; the detective wavelength was set at 380 nm.Formaldehyde and glyoxal were quantitatively determined by an external reference method.Linear calibration was established for both formaldehyde and glyoxal in the range from 0.094 to 1.88 μg/mL.The detection and the quantification limits were 0.047 μg/mL (19 μg/g) and 0.094 μg/mL (38 μg/g), respectively.The recoveries were (95.0±1.1)% and (99.4 ± 2.6)% for formaldehyde and glyoxal, respectively.This method has been fully validated to be applicable to quantitative analysis of trace amount of formaldehyde and glyoxal in varenicline tartrate API and its intermediate.Test results demonstrated that the contents of both formaldehyde and glyoxal met the permitted daily exposure (PDE) limits for the finished products of varenicline tartrate API as well as its intermediate, though the glyoxal contents in the crude intermediates were likely to exceed the limit.The established method is valuable for the manufacturing process and quality control of varenicline tartrate.
9.Structural identification of the related substances of lorazepam tablets by LC-MS
Song ZHU ; Jing JIANG ; Yang LIU ; Wenyu ZOU ; Pengwei HU ; Yuting LU ; Min SONG ; Taijun HANG
Journal of China Pharmaceutical University 2021;52(5):555-565
This study aimed to identify the related substances of lorazepam tablets by liquid chromatography mass spectrometry (LC-MS). To separate the related substances of lorazepam tablets, gradient elution was performed using acetonitrile and 0.1% acetic acid -20 mmol/L of ammonium acetate as mobile phase on Inert Sustain C18 (250 mm × 4.6 mm, 5 μm).The accurate mass and elemental composition of the parent ions and their product ions of related substances were determined by electrospray-ionization quadrupole time-of-flight high resolution mass spectrometry (ESI-Q-TOF/MS).The structures of the related substances were identified by spectral analysis. Under the established analytical condition, lorazepam and its related substances were adequately separated, and 22 major related substances with content greater than 0.1% were detected and identified by hyphenated techniques in lorazepam tablets and their stressed samples.Among them, 5 were the impurities listed in the USP or EP, and the others were unknown related substances identified for the first time in this paper.The LC-MS technique can effectively separate and identify the related substances of lorazepam tablets, which provides some reference for quality control.
10.Correlation between in-vivo mercury exposure from Cinnabaris and memory disorders in juvenile rat
Zhaoliang HU ; Wenyu ZOU ; Min SONG ; Taijun HANG ; Yuting LU
Journal of China Pharmaceutical University 2023;54(4):483-489
Cinnabaris(α-HgS) is a mineral traditional Chinese material medica, as a tranquilizer and sedative, which is widely used in combination with herbs for the treatment of children high fever and convulsion.However, a large amount of mercury in Cinnabaris poses a potential risk to the immature central nervous system of children and probably causes severe memory disorders.Inthisstudy,three groups of juvenile rats were given low, medium, and high doses of Cinnabaris by oral gavage once a day for 14 continuous weeks, respectively.The blood mercury concentrations of the rats at different growth phases were monitored by atomic fluorescence spectrometry.The brain structural and functional changes related to the memory functions were investigated through HE staining and Morris water-maze test. Correlation analysis was conducted to clarify the dose- mercury exposure-toxic effect relationship of Cinnabaris and memory disorders.It was found thatthe blood mercury levels increased in both time- and dose-dependent manner.After the 14-week continuous administration of Cinnabaris, the pathological lesions in hippocampal neurons of rats in the high dose group were observed including pyknosis and disordered cell arrangement.In the Morris water-maze test, compared with the control group, rats in the high dose group exhibited the significantly prolonged latency to find the platform and the target quadrant, and the time spent in the target quadrant was obviously shortened. Thus, the significant correlations were established between Cinnabaris dose and mercury exposure,mercury exposure and memory disorders, respectively. In conclusion, the long-term and overdose administration of Cinnabaris in juvenile rats can increase the in-vivo mercury level, destroy the normal hippocampal morphological structure, and lead to memory disorders. This study provided scientific references for the potential mercury poisoning risks pharmacovigilance of Cinnabaris-containing paediatric formulations.