1.The diagnostic value of MSCT for benign and malignant ovarian tumors
Chinese Journal of Primary Medicine and Pharmacy 2013;20(8):1193-1194
Objective To analyze the MSCT manifestation of tumor of ovary.Methods 57 patients diagnosed as ovary tumor were recruited into our analysis (malignant:33 cases,benign:24 cases),all cases underwent plain CT scan and contrast CT scan.Results 33 cases of malignant tumors showed moderate enhanced.23 ovary adenoma which manifests as cystic tumor,the solid parts of the lesion showed slightly enhanced.Granulosa-theca cell tumor showed slightly enhanced.Conclusion MSCT is helpful in diagnosis of ovary tumor.
2.Clinical comparative of aspirin and clopidogrel combined with atorvastatin calcium in the treatment of acute ischemic cerebrovascular disease
Chinese Journal of Biochemical Pharmaceutics 2017;37(1):157-159
Objective To study the clinical effects of aspirin and clopidogrel combined with atorvastatin calcium in patients with acute ischemic cerebrovascular disease. Methods 27 cases of patients with acute ischemic cerebrovascular disease from March 2015 to March 2016 in Hainan general hospital were selected,and randomly divided into control group and observation group,13 patients in the control group,treated with aspirin and clopidogrel,14 cases in the observation group,treat with atorvastatin calcium based on the control group,both two groups were treatment for three months.The total effective rate were compared between the two groups after treatment,NIHSS score and serum lipid level were compared before and after treatment. Results After treatment,the total effective rate of observation group was 92.9%,significantly higher than the control group 53.8%(P<0.05).Compared with before treatmeng,the NIHSS score of two groups were decreased,the levels of TC,TG and LDL-C in two groups were decreased,HDL-C was increased (P<0.05);Compared with control group,the NIHSS score of observation group was lower,TC,TG and LDL-C were lower,HDL-C was higher (P<0.05). Conclusion Aspirin and clopidogrel combined with atorvastatin calcium in treatment with acute ischemic cerebrovascular disease has significant effect,can reduce the patient's NIHSS score,improve blood lipid levels.
3.Discussion on the Mentality of the Anesthesiology Discipline Construction
Chinese Journal of Medical Education Research 2006;0(09):-
The anesthesiology discipline development not only must comply with its own inherent laws of development,but also must focus on social,economical and the whole teaching environment of higher education as well as the discipline ecology evolution composed by neighbor discipline of anesthesiology.Its long term mechanism construction is discussed.
4.Serum Vitamin A is decreased in rheumatological diseases
Chinese Journal of Immunology 2017;33(7):1068-1071
Objective:To investigate the serum Vitamin A(sVit A) levels in Behcet′s disease(BD)and other rheumatological diseases.Methods: sVit A concentration was measured in BD(including 3 subtypes of eye BD,intestinal BD,and vascular BD),rheumatoid arthritis(RA),systemic lupus erythematosus(SLE),ankylosing spondylitis(AS),primary Sjogren′s syndrome(pSS) and adult onset Still disease(AOSD)and compared with healthy controls(HC).Results: The patients enrolled in this study was according with the epidemiological features;BD patients including its subtypes of eye BD,intestinal BD,and vascular BD patients all had a lower concentration of sVit A than HC(P<0.05),no statistical differences between the subtypes;RA,SLE,AS,pSS and AOSD had a lower concentration of sVit A than HC(P<0.05).Conclusion: Decreased serum Vit A levels might account for a common pathogenesis of various rheumatic diseases.
5.Detection of vascular endothelial progenitor cells in patients with systemic lupus erythematosus
Hong CHEN ; Huijuan ZHAO ; Jianlong MEN
Chinese Journal of Dermatology 2013;(1):43-45
Objective To characterize the alteration in peripheral blood endothelial progenitor cells (EPCs) of patients with systemic lupus erythematosus (SLE).Methods Venous blood samples were obtained from 82 female patients with SLE aged (35 ± 10) years and 50 healthy female controls aged (35 ± 13) years.ACL 9000 automated coagulation analyzer was used to determine the level of Von Willebrand factor antigen (vWF Ag).Flow cytometry was performed to detect peripheral blood EPCs and circulating endothelial cells (CECs).Analysis of variance was performed to assess the differences in these parameters between patients with active and stable SLE and the controls,and Pearson correlation analysis was conducted to evaluate the relationship between these parameters.Results The number of CD34+ cells,CD133+ cells and CD34+CD133+cells per 200 000 peripheral blood mononuclear cells was 35.4 ± 16.7,86.5 ± 32.1 and 361.3 ± 176.4 in patients with active SLE,significantly higher than that in the patients with stable SLE (17.1 ± 10.9,28.7 ± 21.5,107.2 ±44.3,respectively,all P < 0.01)) and the controls (13.8 ± 9.6,11.2 ± 5.5,92.3 ± 50.5,respectively,all P <0.01).The patients with active SLE exhibited an elevated level of vWF Ag (438.9% ± 205.3% vs.130.2% ±51.5%,P < 0.01),an increased number of EPCs (361.3 ± 176.4 vs.107.2 ± 44.3,P < 0.01) but a similar number of CECs (127±51 vs.118 ± 39,P > 0.05) per 200 000 peripheral blood mononuclear cells compared with the healthy controls.No significant differences were observed in these parameters between the patients with stable SLE and the controls (all P > 0.05).The number of EPCs was positively correlated with the level of vWF Ag (r =0.67,P < 0.01),but uncorrelated with the number of CECs (P > 0.05) in patients with active SLE.Conclusions The quantity of EPCs in peripheral blood is closely correlated with the level of the vascular injury marker vWF Ag,hinting that the number of EPCs can serve as a useful marker of disease severity.
6.Renal carcinoma associated with Xp11.2 translocations/TFE3 gene fusions with lymph node metastasis diagnosed after an injury accident: report of a case.
Yuanqin CHEN ; Sipeng KANG ; Jianlong QIU
Chinese Journal of Pathology 2014;43(2):123-124
Accidents
;
Adolescent
;
Basic Helix-Loop-Helix Leucine Zipper Transcription Factors
;
genetics
;
metabolism
;
Carcinoma, Renal Cell
;
genetics
;
pathology
;
surgery
;
Chromosomes, Human, X
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Diagnosis, Differential
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Gene Fusion
;
Humans
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Kidney
;
injuries
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Kidney Neoplasms
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genetics
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pathology
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surgery
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Lymphatic Metastasis
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Male
;
Translocation, Genetic
7.Determination of antibiotic residues in chicken meat using ultra-high-performance liquid chromatography coupled with hybrid quadrupole-orbitrap high-resolution mass spectrometry
PAN Xiaodong ; HAN Jianlong ; CHEN Qing
Journal of Preventive Medicine 2023;35(5):456-459
Objective:
To optimize the sample pretreatment and establish an ultra-high-performance liquid chromatography coupled with hybrid quadrupole-orbitrap high-resolution mass spectrometry (UPLC-Q-Orbitrap-MS) assay based on the parallel reaction monitoring (PRM) mode for determination of antibiotic residues in chicken meat.
Methods:
Blank matrix-spiked chicken meat samples were extracted with 95% acetonitrile aqueous solution containing Na2EDTA and formic acid. The extraction solutions were cleaned up using different combinations of C18, PSA and GCB fillers, and the combinations with a higher antibiotic recovery rate was screened. The residues of 32 antibiotics were determined using UPLC-Q-Orbitrap-MS based on the PRM mode.
Results:
If the extraction solution was cleaned up using the C18 filler, the largest number of antibiotics with a spiked recovery rate of >80% was seen, with matrix effects of 82.2% to 112.6%. The detection limits of 32 antibiotics were 0.8 to 5.8 μg/kg, with linear correlation coefficients of >0.99, spiked recovery rates of 71.3% to 111.5% and relative standard deviations of 3.2% to 14.2%.
Conclusion
The UPLC-Q-Orbitrap-MS assay is suitable for determination and quantitative analysis of multiple antibiotics in chicken meat.
Key words: high-resolution mass spectrometry orbitrap antibiotic residue parallel reaction monitoring
8.Determination of Atmospheric Krypton and Xenon by Gas Chromatography-Mass Spectrometry in Direct Injection Mode
Zhanying CHEN ; Shujiang LIU ; Jianlong WANG ; Yinzhong CHANG
Chinese Journal of Analytical Chemistry 2016;(3):468-473
Volume concentration determination for atmospheric krypton and xenon is very important for krypton-85 and radioactive xenon isotopes monitoring. An injection setup integrated adjustable quantity sample injection and quantitative dilution function was designed. The effects of EI source parameters on the sensitivity of MS detector were studied. The optimized values were as following: ionization energy of 70 eV, emission current of 40 mA, cathode voltage of 27 mV, focus voltage of 85 mV and lens compensation of 20 V, respectively. A GC-MS method for the determination of krypton and xenon in atmosphere without of sample pretreatment was developed. The minimal detected concentrations for krypton and xenon were 3. 3×10-8(V/V) and 2. 6×10-9(V/V). Moreover, the krypton and xenon concentrations in the ground level air around our laboratory were measured with the results of 1 . 1 × 10-6 ( V/V ) and 9 . 3 × 10-8 ( V/V ) . The related combined standard uncertainties for krypton and xenon results were 2. 38% and 3. 15%, respectively.
9.Expressions of estrogen receptor-α and related cytokines and their clinical correlation in patients with systemic lupus erythematosus (SLE)
Hong CHEN ; Huijuan ZHAO ; Xiaoping CHANG ; Jianlong MEN
Chinese Journal of Dermatology 2011;44(3):205-208
Objective To study the mechanism of effects of estrogen receptor (ER) on T and B lymphocytes in patients with SLE and synergistic effect of T and B lymphocytes in the pathogenesis of SLE.Methods Real-time fluorescence quantitative PCR was performed to detect the mRNA expressions of ER-α,interleukin 10 (IL-10) and B lymphocyte stimulator (BLyS) in peripheral blood mononuclear cells (PBMCs)from 40 SLE patients and 40 normal human controls. The clinical and laboratory correlation with the levels of these parameters was analyzed. Results A significant increase was observed in the relative expression levels of ER-α, IL-10 and BLyS mRNA in SLE patients compared with the normal human controls (P < 0.05 or 0.01 ), in active SLE patients compared with inactive SLE patients (P < 0.05 or 0.01 ). Additionally, the mRNA expression levels of the 3 parameters were significantly correlated with the presence of renal damage, proteinuria, arthritis, etc. No statistical difference was observed in the mRNA expression levels of these parameters between female and male patients or between female and male normal controls. Conclusions IL-10 and BLyS appear to be correlated with the disease activity and severity of SLE, and ER-α may play an important role in the action mechanism of T and B lymphocytes in SLE.
10.Interleukin-17 and interleukin-23 mRNA expressions in peripheral blood of patients with psoriasis vulgaris and their correlations with disease severity
Tong SU ; Hong CHEN ; Lu LI ; Jianlong MEN ; Guizhen LI
Chinese Journal of Dermatology 2014;47(4):278-281
Objective To compare the mRNA expressions of interleukin (IL)-17 and IL-23 in peripheral blood of patients with psoriasis vulgaris versus healthy individuals,assess the relationship of these parameters with psoriasis area and severity index (PASI) score,and to investigate the therapeutic mechanisms of total glucosides of peony (TGP) for psoriasis vulgaris.Methods Fifty patients with psoriasis vulgaris and 40 healthy individuals were enrolled in this study.Of these patients,42 were treated with TGP of 600-900 mg twice a day for 8 weeks.Blood samples were obtained from all the healthy individuals,50 patients before treatment,42 patients after 4-week treatment,and 23 patients after 8-week treatment.Real-time fluorescence-based quantitative reverse transcription PCR (RT-PCR) was used to determine the mRNA expression levels of IL-17 and IL-23 in the blood samples.The severity of psoriasis was evaluated using PASI score before and after the treatment.Statistical analysis was done by t test,rank sum test,and Pearson correlation analysis using the SPSS16.0 software.Results The IL-17 and IL-23 mRNA expression levels (given in △Ct value) in the patients before treatment were significantly higher than those in the healthy controls (IL-17,-5.32 ± 0.80 vs.2.79 ± 0.76,t =47.71,P < 0.05; IL-23,-5.43 ± 0.68 vs.-3.77 ± 0.86,t =10.38,P < 0.05),and positively correlated with the PASI score (r =0.61,0.52 respectively,both P < 0.05).A significant decrease was observed in the mRNA expression levels of IL-17 and IL-23 as well as PASI score in the 42 patients after 4-week treatment with TGP compared with those before treatment(IL-17,-2.24 ± 0.61 vs.-5.30 ± 0.78,t =20.40,P < 0.05; IL-23,-1.97 ± 0.74 vs.-5.44 ± 0.68,t =21.69,P < 0.05; PASI,5.8 ± 2.7 vs.9.4 ± 4.2,t =4.68,P < 0.05),and in the 23 patients after 8-week treatment compared with those after 4-wek treatment(IL-17,-1.51 ± 0.78 vs.-2.21 ± 0.59,t =3.50,P < 0.05; IL-23,-1.27 ± 0.81 vs.-1.89 ± 0.72,t =2.70,P< 0.05; PASI,3.8 ± 1.8 vs.7.3 ± 2.5,t =5.47,P< 0.05).Conclusions It seems that both IL-17 and IL-23 are involved in the pathogenesis of psoriasis vulgaris,and TGP treatment can reduce the mRNA expression levels of IL-17 and IL-23 as well as PASI score in patients with psoriasis vulgaris.