1. Comparative study of risk factors for early and advanced atherosclerosis
Chinese Journal of Cerebrovascular Diseases 2011;8(4):189-194
Objective: The purpose of this study is to compare the risk factors for the two different atherosclerosis processes, namely the early atherosclerosis and advanced atherosclerosis. Methods: Using magnetic resonance angiography and high-resolution B-mode ultrasonography, 92 patients with advanced atherosclerosis (atherosclerotic cerebral infarction/transient ischemic attack) and 120 patients with early atherosclerosis (no cardiovascular and cerebrovascular diseases and carotid stenosis <40% on B-mode ultrasonography) were included. The difference and similarity of the risk factors for early atherosclerosis and advanced atherosclerosis were compared respectively using the binary logistic regression. Results: In the binary logistic model of carotid plaque formation, the traditional risk factors, such as age (years) (OR, 1.101, 95% CI: 1.046-1.159, P < 0.001), high TC (OR, 2.236, 95% CI: 0.821-6.089, P = 0.0115), hypertension (OR, 2.623, 95% CI: 0.989-6.957, P = 0.053), and smoking (%) (OR, 7.975, 95% CI: 2.274-27.9651, P =0.001) were the statistically significant independent variables. In the binary logistic model of advanced atherosclerosis, male (OR, 2.064, 95% CI: 1.137-0.748, P = 0.017), high Lp (a) (OR, 2.818, 95% CI: 1.499-5.298, P=0.001), low HDL (OR, 2.451, 95%CI: 1.234-4.868, P=0.010), and diabetes mellitus (OR, 2.414, 95% CI: 1.232-4.731, P=0.010) were the statistically significant independent variables. Conclusion: The risk factors for advanced atherosclerosis and early atherosclerosis are different, diabetes mellitus and lipoprotein (a) may play an important role in the advanced atherosclerosis.
2.Serum excitatory amino acids concentrations in patients with amnestic mild cognitive impairment or Alzheimer's disease
Chinese Journal of Neurology 2005;0(08):-
Objective To figure out changes of serum excitatory amino acids (EAAs) levels in patients with amnestic mild cognitive impairment (aMCI) and Alzheimer's disease (AD).Methods The levels of serum EAAs was assessed in 34 cognitively normal control subjects,30 patients with aMCI,and 32 patients with AD using high performance liquid chromatography (HPLC).Results ①Higher serum concentrations of glutamate((39.6?22.1) ?mol/L),alanine((282.5?71.3) ?mol/L) were found in the aMCI patients (P=0.044,P=0.007),and higher serum concentrations of glutamate ((42.2?21.8) ?mol/L),glycine ((464.2?142.6) ?moL/L) were found in the AD patients than in the control subjects (P=0.010,P=0.010).②No statistically significant difference of EAAs level between the aMCI and AD groups was found.③A close and positive correlation between the serum concentrations of glutamate, aspartate and the mini-mental status examination scores were found in AD patients:the 2 amino acid levels were higher in patients with mild dementia((42.1?21.3),(55.0?29.0) ?mol/L) than those with moderate or severe dementia ((25.4?9.2) ?mol/L,P=0.023;(34.6?11.1) ?mol/L,P=0.036). Conclusion EAAs,correlating with the severity of the condition,play a significant role in AD,while aMCI patients also have disturbance of metabolism of EAAs,indicating that it has similar pathogenesis to AD.
4.Risks of and response to cluster outbreak of imported malaria during malaria post-elimination era in China
ZHANG Li ; YIN Jian-hai ; XIA Zhi-gui
China Tropical Medicine 2023;23(6):585-
Abstract: Objective To analyze the recent cluster outbreaks of imported malaria and explore the risks, challenges and countermeasures for dealing with such events during malaria post-elimination era of malaria, and to provide reference for effectively addressing the risks and consolidating the achievements of malaria elimination. Methods The individual malaria case data from "The Information System for Infectious Disease Surveillance" and "The Information System For Parasitic Diseases Prevention And Control" were collected,and the diagnosis classification, infection source, time and space distribution of cases were analyzed. Results From January 1 to August 11, 2022, a total of 429 malaria cases were reported nationwide, an 18.9% decrease compared to the same period last year (529 cases), all of which were imported cases. The overall weekly trend of the outbreak remained stable, but since Week 31 (July 25-31), there has been a significant increase in the number of cases, with a peak on August 5. From July 25 to August 11, 2022, a total of 162 malaria cases were reported nationwide, up 315.4% from 39 cases in the same period last year, accounting for 37.8% of the total cases up to August 11, 2022. The main source of imported infections was Guinea (95 cases, 58.6%), with most cases reported in Longgang District, Shenzhen City, Guangdong Province (30 cases), Shilin County, Kunming City, Yunnan Province (21 cases), Chaoyang District, Beijing (11 cases), and Xiaoshan District, Hangzhou City, Zhejiang Province (7 cases). Conclusions Due to the concentration of returnees to China, several entry port cities simultaneously experienced cluster outbreaks of imported malaria, which brought immense pressure and challenges to local medical and health institutions. Health facilities at all levels need to maintain high vigilance and sensitivity, be well prepared, and avoid death and secondary transmission caused by imported cases.
5.Questionnaires analysis of the rheumatologists' ability of reading sacroiliac joint's magnetic resonance imaging of spondyloarthritis
Zheng ZHAO ; Gui LUO ; Yanyan WANG ; Jian ZHU ; Feng HUANG
Chinese Journal of Rheumatology 2014;18(5):332-335
Objective To analyze the ability of rheumatologistto read the magnetic resonance imag of sacroiliac joint of spondyloarthritis patients.Methods The questionnaire survey were conducted among rheumatologists and the answers of the questionnaires were analyzed by quantitative analysis.Results 66.9% (75/112) rheumatologist did not known how to choose the sequence of magnetic resonance imaging,and 55.4%(62/112) rheumatologist thought that bone marrow edema was very important for the diagnosis of spondyloarthritis,but only less than 10% rheumatologists thought that erosion and fat infiltration could also h elp to make the diagnosis of spondy-loarthritis.Conclusion It is very important for rheumatologists to receive training on the reading of magnetic resonance images of sacroiliac joint of spondyloarthritis patients.
6.The clinical analysis for the whole-spine magnetic resonance imaging of axial spondyloarthritis
Gui LUO ; Zheng ZHAO ; Jian ZHU ; Jianglin ZHANG ; Feng HUANG
Chinese Journal of Internal Medicine 2014;53(6):464-468
Objective To investigate spinemagnetic resonance imaging(MRI) findings in patients with axial spondyloarthritis (SpA) and to analyze the correlation between imaging and clinical manifestation.Methods The clinical data of patients with axial SpA were recorded.All patients underwent whole spine MRI scanning.The MRI findings of spinal involvement were explored.Moreover,the correlation between lesions in spinal MRI and Bath Ankylosing Spondylitis Disease Activity Index(BASDAI),Bath Ankylosing Spondylitis Functional Index (BASFI),Bath Ankylosing Spondylitis Metrology Index (BASMI),nocturnal pain visual analogue scale (VAS) score,back pain VAS score,global disease activity VAS score,Ankylosing Spondylitis Disease Activity score (ASDAS),erythrocyte sedimentation rate,C-reactive protein was analyzed.Results Thirty-three patients with axial SpA were included in this study.The image abnormalities of the spine were confirmed in 29 axial SpA patients by MRI,including Romanus lesion,Andersson lesion,the inflammation of facet joints and syndesmophyte.In correlation study,BASMI was positively correlated to the numbers of acute Romanus lesions,chronic Romanus lesions,chronic Andersson lesions and whole spinal lesions(r =0.440,P<0.05; r =0.483,P<0.05; r=0.421,P<0.05; r=0.589,P < 0.05 respectively).There was a statistically significant correlation between chronic Andersson lesions and BASFI(r =0.392,P <0.05).But no significant associations were found between MRI lesions and other clinical findings.Conclusions MRI lesions in axial SpA were associated with findings reflecting the spinal function,which can better guide the clinical treatment.
7.A magnetic resonance imaging study of the gray matter configuration in amnestic mild cognitive impairment patients
Chuanming LI ; Li GUI ; Hanjian DU ; Bing XIE ; Jian WANG
Chinese Journal of Neurology 2010;43(12):853-857
Objective To investigate the cortex gray matter configuration in amnestic mild cognitive impairment(aMCI)patients using MRI technology, FMRIB software library(FSL)and Freesurfer software.Methods Twenty aMCI patients and 20 normal control subjects were recruited and studied. They were matched by age, sex and education. All the patients and healthy volunteers underwent MRI scan using SEMENTS trio 3.0 T MRI. The subtile three-dimensional brain images were obtained using high resolution scanning technique. The imaging data was processed and analyzed with FSL and Freesurfer software. The cortex gray matter density and thickness in different brain areas of aMCI patients and normal control subjects were calculated and compared using statistic analysis. Results Compared to that in the controls, cortex gray matter density in the aMCI patients showed remarkable decreases in left frontal lobe, temporal lobe,parietal lobe, and slight decrease in right thalamus, temporal lobe and island lobe; For cortex thickness,aMCI patients showed significant decreases in left anterior cingulate gyrus((2. 19 ±0. 24)mm), inferior parietal lobe((2. 27 ± 0. 15)mm), bilateral parahippocampal gyrus((2. 03 ± 0. 15),(2. 04 ±0. 17)mm), precentral gyrus((2. 20 ± 0. 11),(2. 31 ± 0. 19)mm), postcentral gyrus((1.88 ± 0. 11),(1.82 ± 0. 09)mm), superior frontal gyrus((2. 42 ± 0. 34),(2. 40 ± 0. 28)mm), middle frontal gyrus ((2.31±0.31),(2.33 ±0.29)mm), supramarginal gyrus((2.53 ±0.33),(2.55 ±0.23)mm),temporal pole((3.41 ±0.68),(3.30 ±0.56)mm)and transverse temporal gyrus((2.04 ±0. 12),(2. 01 ± 0. 11)mm; t = 2. 13-3.75, P < 0. 05), no significant changes in the other areas(t = 0. 09-1.88, P > 0. 05). Conclusions Our results suggest that there are significant changes in gray matter configuration in cortex of aMCl patients. The changes of cortical thickness is earlier than the changes of gray matter density.
8.Study of Stomach Using Ferric Oxide Suspension as Oral Contrast Agent in MRI
Jian YAO ; Weiling GUI ; Liguang CHEN ; Bin ZHAO
Journal of Practical Radiology 2001;0(01):-
Objective To evaluate the applied value superparamagnetic Ferric Oxide oral contrast agent in the dignosis of MR forstomach.Methods Ferric Oxide Suspension was administered before MR scanning of stomach in 36 cases,ranged in age form 21 to 60 years old.MR findings were analysed.Results The fullness of stomach was 100% after administration of Ferric Oxide Suspension.Stomach canal appeared as negative contrast in all MR sequences,the relation between lesions in stomach and around tissue were clearly showed.During MRCP,it could restrict the high signal in stomach canal.Conclusion Oral Ferric Oxide Suspension as contrast agent during MR examination of stomach is easily accepted by patients,it is a safe and steady negative contrast agent for gastrointestinal MR examination.
9.Transartenal chemoembolization and portal vein chemotherapy for hepatocellular carcinoma with portal vein tumor thrombosis
Jian WANG ; Fare SUN ; Yunlong GUI ; Qiang LI
Chinese Journal of General Surgery 1993;0(01):-
Objective To explore the efficacy of postoperative transarterial chemoembolization (TACE) and portal vein chemotherapy (PVC) for hepatocellular carcinoma (HCC) patients complicated with portal vein tumor thrombus (PVTT). Methods One hundred and eleven HCC patients with PVTT were randomly divided into three groups receiving respectively tumor resection only ( group A) , resection plus TACE ( group B) , and resection plus TACE and PVC ( group C). Results (1) Group B had significantly lower recurrence rates at 0. 5- and 1-year, and higher survival rates at 0. 5-year compared with group A (P