3.Measurement of Morphological Parameters of Cryptosporidium murisOocysts by Digital Image Processing Technology
Yuyan BING ; Yan LI ; Chunli AN
Chinese Journal of Parasitology and Parasitic Diseases 1987;0(03):-
Objective To establish and analyze the morphological parameters of the oocysts of Cryptosporidium muris for defining their morphological change. Methods Oocysts were collected from KM mice(immunodepressed by dexamethasone for 10 days) and examined with modified acid-fast staining. Images of 1 190 oocysts were acquired by photograph system. The length, width, perimeter, area and equivalent diameter of the oocysts were obtained by computer digital image processing system and analyzed by SPSS software (Version 11.0). Result The average length of the oocysts was 5.93 ?m, ranging from 3.36 ?m to 8.51 ?m in 95% confidence interval of them. The average width was 4.96 ?m, ranging from 3.26 ?m to 6.66 ?m in 95% confidence interval of them. The average perimeter was 18.03 ?m and the average area was 16.08 ?m2. Conclusion Data obtained from the computer system are objective and precise, offering scientific foundation for measuring the oocysts and for identifying Cryptosporidium spp.[
4.Analysis of carotid and femoral arteries lesions in diabetes mellitus induced by 2D-CDUS ultrasound
Bing LI ; Baozhen ZHAO ; Xiuying SUN ; Yan SUN ; Bing XIA ;
Academic Journal of Second Military Medical University 1985;0(06):-
Objective: To evaluate 2D CDUS ultrasound in estimating lesions of carotid and femoral arteries in diabetes mellitus. Methods: Forty patients were divided into 3 groups by age. We detected their carotid and femoral arteries using two dimensional and PW Doppler ultrasonography. The lesions degree were assessed according to U B 6 classification. Results: Higher incidence and more serious degree of arteries lesions occurred in diabetes mellitus than those in control group ( P 40 years old than in group ≤40 years old in diabetes mellitus ( P
5.Application of Raman spectroscopy in the stomatology.
West China Journal of Stomatology 2015;33(2):214-217
Raman spectroscopy is an optical technology based on the theory of Raman scattering, which is generally used in the research of medical and biological science. Raman spectroscopy can be used to detect the molecular structures and components of proteins, lipids, DNA, and other biological molecules, and provide substantial information about molecules. Thus, Raman spectroscopy is generally considered a "molecular fingerprint", and it has exceptional advantages in medical research. Moreover, this technique can reflect the changes in molecular structures and detect the alterations of chemical constituents in the samples. Raman spectroscopy, given its high sensitivity and specificity in the detection of the biological samples, has been successfully used to detect and diagnose diseases in numerous sites, such as skin, oral mucosa, breast, head, and neck. In this paper, we introduce the application of Raman spectroscopy in stomatology by conducting a review of the literature.
DNA
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Lipids
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Oral Medicine
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Proteins
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Sensitivity and Specificity
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Spectrum Analysis, Raman
7.Therapeutic effects of focused ultrasound on chronic cervicitis and the influencing factors
Chinese Journal of Obstetrics and Gynecology 2001;0(01):-
Objective To explore the therapeutic effect of focused ultrasound(FU)on chronic cervicitis unitarily and its influential factors.Methods Three hundred and thirteen patients of chronic cervicitis were treated with the device of CZF model focused ultrasound.The therapeutic effects in 300 cases with complete records,as well as the relationship between the diameter of cervical erosion and the exposure time to FU were analyzed.Results The effective rates of FU in treatment of chronic cervicitis unitarily were 100.0%(53/53),95.2%(120/126)and 91.7%(111/121),respectively,for mild,moderate and severe cases.The overall effective rate was 94.7%(284/300).With other parameters of FU unchanged,the exposure time to FU showed an exponential relationship with the diameter of erosion,and the regression equation was D=31.71e~(0.4808t)(R~2=0.9966).Conclusions The controllability and achievement ratio of FU to treat cervical erosion could be enhanced when exposure time and manners were fully considered based on the diameter and type of cervical erosion.A satisfactory therapeutic efficacy could be achieved with FU to treat cervical erosion unitarily.
8.Curative effects of Ginkgo dipyridolum injection in the treatment of acute cerebral infarction and its influence on blood rheology and fibrinogen content
Shiying LI ; Bing YAN ; Jing XIA
Journal of Clinical Neurology 1988;0(02):-
Objective To observe the curative effects of Ginkgo dipyridolum injection in the treatment of acute cerebral infarction and its influence on blood rheology and fibrinogen content.Methods 96 patients with acute cerebral infarction were randomly divided into two groups.39 patients in Ginkgo dipyridolum group were treated with 20 ml Ginkgo dipyridolum injection plus 500 ml saline intravenously,once a day.57 patients in control group were treated with Xuesaitong injection 10 ml plus 500 ml saline intravenously,once a day.All treatment lasted for 14 days.The score of neurological deficit was evaluated to assess the clinical efficiency,the changes of indexes of blood rheology,fibrinogen content and skull CT in the two groups were observed before and after treatment.Results Total effective rate(94.9%)in the Ginkgo dipyridolum group was signifcantly higher than that in the control group(78.9%)(P
9.Sub-clinical inflammation and insulin resistance in patients with cerebral infarction
Shiying LI ; Bing YAN ; Hechuan ZANG
Journal of Clinical Neurology 1997;0(06):-
Objective To observe the sub-clinical inflammation and insulin resistance (IR) in patients with cerebral infarction(CI). Methods The levels of serum C-reactive protein (CRP),interleukin-6 (IL-6),fasting insulin (Fins),fasting plasma glucose (FPG),blood lipids and blood pressure were measured in 114 patients with CI (CI group). The insulin sensitivity index (ISI) was observed and the correlation between ISI and indexes of inflammation were analysed. The results were compared with 70 patients without CI(control group). Results (1) The levels of serum CRP [(2.73?0.87) mg/L]and IL-6[(0.14?0.03) ng/ml] in CI group were significantly higher and ISI(-4.31?0.53) was significantly lower compared with control group[CRP(1.63?0.93) mg/L,IL-6(0.12?0.03) ng/ml,ISI(-3.92?0.43)] ( all P8.2 mg/L was significantly lower than that in the patients with the CRP≤8.2 mg/L (-4.18?0.54)(P
10.Value of pre- and postoperative red cell distribution width-to-lymphocyte count ratio in judging the prognosis of patients with non-metastatic colorectal cancer
Xiaoxin LU ; Bing YAN ; Fang LI
Cancer Research and Clinic 2021;33(2):119-123
Objective:To explore the value of pre- and postoperative red cell distribution width-to-lymphocyte count ratio (RLR) in predicting the disease-free survival (DFS) for non-metastatic colorectal cancer patients.Methods:The data of 108 patients pathologically diagnosed with non-metastatic colorectal adenocarcinoma after surgery from December 2012 to January 2020 in Hainan Hospital of PLA General Hospital were retrospectively analyzed. RLR was calculated and its differences in patients with varied clinicopathological characteristics were analyzed. The receiver operating characteristics (ROC) curve was applied to analyze the value of pre- and postoperative RLR in predicting DFS of patients, and the cut-off value was determined by Youden index. DFS of patients with different stratification stratified by a cut-off value of RLR was analyzed by using Kaplan-Meier method followed by log-rank test. Cox proportional hazards model was used to make univariate and multivariate analysis.Results:Youden index of pre- and postoperative RLR in predicting DFS was 8.86%, 9.15%; based on the above index, the patients were divided into the preoperative RLR<8.86% group (73 cases) and preoperative RLR≥8.86% group (35 cases), postoperative RLR<9.15% group (48 cases) and postoperative RLR≥9.15% group (60 cases). According to ROC curve, the area under the curve (AUC) of preoperative RLR in predicating DFS was 0.66 (95% CI 0.55-0.77, P = 0.01), and AUC of postoperative RLR in predicating DFS was 0.62 (95% CI 0.51-0.74, P = 0.04). Pre- and postoperative RLR cut-off values were used to predict 3-year DFS rate of patients with the sensitivity of 51.60% and 71.00%, respectively, and the specificity of 76.60% and 50.60%, respectively. Kaplan-Meier analysis showed that patients in preoperative RLR<8.86% group had a better DFS compared with those in preoperative RLR≥8.86% group ( χ2 = 7.35, P < 0.01); there was no statistical difference in DFS between postoperative RLR<9.15% group and postoperative RLR≥9.15% group ( χ2 = 3.69, P = 0.06). Preoperative RLR was an independent affecting factor for DFS of patients ( HR = 1.13, 95% CI 1.04-1.22, P <0.01). Conclusions:Pre- and postoperative RLR could be useful in predicating 3-year DFS for patients with non-metastatic colorectal cancer. Preoperative RLR is an independent affecting factor for DFS, and the patients with low RLR have a better prognosis.