1.The Study of 16-slice Spiral CT for Coronary Artery Atherosclerotic Plaque
Yanqiu SUN ; Xiangjiu XU ; Kewen LI ; Xiaona ZUO ; Hongguang QU
Journal of Practical Radiology 2001;0(10):-
Objective To study the diagnostic value of coronary disease with 16-slice spiral CT.Methods 35 patients with coronary heart disease(CHD) were divided into two groups according to the risk rate of CHD:group 1 with acute coronary artery syndrome(ACS)(including acute myocardial infarction,AMI;unstable angina,UA);group 2 with stable angina(SA).They were studied by 16-slice spiral CT(retrospectively ECG-gating,0.5 s ratation),the images were reconstructed by survey methods to display the coronary artery atherosclerosis plaques,then to evaluate the nature of plaques by detecting CT value of plaque(using the standard of the CT value of the coronary artery atherosclerosis plaque of Schroeder)and to analyze the degree of the stenosis of coronary artery caused by the different type of plaque.Results There were 19 soft plaqes,11 middle plaques and 7 calcification plaques in ACS group;3 soft plaqes,3 middle plaques and 11 calcification plaques in SA group.There was a positive relation between soft plaqes and middle plaques with the risk rate of CHD,especially soft plaque(P
2.Expression of L - selectin in experimental allergic encephalomyelitis of Wistar rats and its clinical significance
Hezhong ZHENG ; Kewen XU ; Wei DONG ; Yulan WANG ; Qi NI ; Jing WENG ; Hong YI
Chinese Journal of Primary Medicine and Pharmacy 2011;18(12):1587-1589
Objective To investigate the effect of L-selectin in experimental allergic encephalomyelitis (EAE) of Wistar rats.Methods The rats were randomly divided into four groups;the normal group,the CFA group, the LMS group and the model group;The animal models were established in rats by immunization with myelin basic protein of spinal cord of guinea pig and complete Freund's adjuvant(CFA).The symptom of EAE was observed; pathological feature and myelin of brain and spinal were detected with HE stain and Loyez's stain respectively.The number of positive vessels of L-selectin expression was detected by immunohistochemistry.Results 100% experimental Wistar rats treated with MBP and levamisole developed EAE,but none of the other groups.The number of positive vessels of L-selectin expression was (31.86 ± 1.39) in model group, obviously higher than that of in the normal group (1.38 ±0.18) ,the CFA group( 1.50 ±0.27) and the LMS group(7.25 ±0.59) (all P <0.05) ;The inflammation cells were found around vessels and demyelination were seen in white matter of brain and spinal cords.Conclusion The expression of L-selectin should play an important role in EAE.
3.Research progress of PARP-1 inhibitors in combination with other drugs to overcome drug resistance
Jinyu SHI ; Ying BAI ; Kewen PENG ; Wenhui ZHANG ; Qihua ZHU ; Yungen XU
Journal of China Pharmaceutical University 2019;50(5):523-530
Poly(ADP-ribose)polymerase-1(PARP-1)plays a vital role in the regulation of DNA repair and apoptosis. Breakthrough has been made in the treatment of cancer with PARP-1 inhibitors, but the emergence of drug resistance has limited its further application in clinic. This paper reviews advances in the research on PARP-1 inhibitors combined with other drugs to overcome drug resistance, highlights and evaluates the existing drug combination strategies and their therapeutic effects in clinical practice. It is proposed that the development of dual-target or multi-target drugs will become a promising approach to overcome the resistance of PARP-1 inhibitors and broaden their indications.
4.Effect of flunarizine combined with carbamazepine in the treatment of migraine
Yeqin LI ; Kewen XU ; Jing WENG
Chinese Journal of Primary Medicine and Pharmacy 2020;27(19):2384-2388
Objective:To explore the effect and safety of flunarizine combined with carbamazepine in the treatment of migraine.Methods:From January 2018 to December 2018, 88 migraine patients treated in Yuyao People's Hospital were divided into control group ( n=44) and observation group ( n=44) according to different treatment methods.The control group was given flunarizine, and the observation group was treated with flunarizine combined with carbamazepine.The clinical efficacy and the incidence of adverse reactions were compared between the two groups through evaluation of the SF-36 scale score before and after treatment and the main cerebral arterial blood flow velocity. Results:The total effective rate in the observation group was significantly higher than that in the control group (90.91% vs.72.73%, χ 2=5.437, P<0.05), and the incidence of adverse reactions had no statistically significant difference between the two groups (15.91% vs.11.36%, P>0.05). The scores of the SF-36 scale in the observation group after treatment were significantly higher than those in the control group [PF: (86.15±8.24)points vs.(93.78±9.73)points; RP: (67.15±12.96)points vs.(87.93±13.78)points; BP: (59.59±15.75)points vs.(73.25±18.34)points; GH: (58.92±14.83)points vs.(69.12±17.93)points; VT: (64.98±15.45)points vs.(72.48±16.78)points; SF: (78.62±14.91)points vs.(87.26±15.72)points; RE: (60.25±18.45)points vs.(69.12±15.72)points; MH: (74.91±16.45)points vs.(87.12±17.93)points], the cerebral arterial blood flow velocity was significantly lower than the control group [ACA: (57.12±8.94)cm/s vs.(52.73±9.02)cm/s; MCA: (75.82±11.92)cm/s vs.(63.09±11.25)cm/s; PCA: (49.87±10.64)cm/s vs.(45.10±9.25)cm/s; VA: (46.20±4.02)cm/s vs.(44.12±4.03)cm/s; BA: (50.10±6.95)cm/s vs.(46.52±7.21)cm/s] (PF: t=3.969, RP: t=7.287; BP: t=3.748; GH: t=2.908; VT: t=2.181; SF: t=2.645; RE: t=2.427; MH: t=3.329; ACA: t=2.293; MCA: t=5.152; PCA: t=2.244; VA: t=2.424; BA: t=2.371, P<0.05). Conclusion:Flunarizine combined with carbamazepine can significantly improve the treatment effect of migraine, improve the quality of life and cerebral arterial blood flow velocity of patients, and has high safety.
5.Metabolomics analysis of serum and urine in patients with traumatic spinal cord injury
Jiating SONG ; Jianmin CHEN ; Kewen WANG ; Lanying HUANG ; Senming XU ; Yuchang GUI ; Jianwen XU
Chinese Journal of Tissue Engineering Research 2024;28(32):5085-5090
BACKGROUND:Traumatic spinal cord injury primarily relies on scale assessment and imaging examinations in clinical practice.However,there are limitations in predicting the prognosis of the injury.Therefore,the use of metabolomics technology for biomarker screening is significant for estimating the extent of damage,injury and recovery,as well as developing new therapies. OBJECTIVE:To characterize the metabolic features of patients with traumatic spinal cord injury using metabolomics technology and explore potential biomarkers and disrupted metabolic pathways. METHODS:Serum and urine samples were collected from 20 patients with traumatic spinal cord injury(observation group)and 10 healthy subjects(control group).Metabolites were analyzed and multivariate statistical analysis was then performed for data processing to screen differential metabolites.Metabolic pathway enrichment was performed using MetaboAnalyst software.Logistic regression was applied to construct a biomarker combination model,and its relationship with the American Spinal Injury Association grading was analyzed. RESULTS AND CONCLUSION:Significant differences in 160 and 73 metabolites were detected in the serum and urine samples of the two groups,respectively.Pathway enrichment analysis showed evident disturbances in lipid metabolism after traumatic spinal cord injury,including sphingolipid,arachidonic acid,α-linolenic acid,and arachidonic acid metabolism,as well as glycerophospholipid and inositol phosphate biosynthesis.The combination of two identified biomarkers,telmisartan and quercetin glycoside,showed a correlation with the American Spinal Injury Association grading in both serum and urine levels.Thus,metabolomics technology provides assistance in further understanding the pathological mechanisms of traumatic spinal cord injury and screening therapeutic targets.The identified metabolic biomarker combination may serve as a reference for assessing the severity of traumatic spinal cord injury.