1.Infective endocarditis with positive anti-neutrophil cytoplasmic antibodies: three cases report with literature review
Wenjie ZHENG ; Qiang GUO ; Chunde BAO
Chinese Journal of Rheumatology 2009;13(8):557-559
Objective To analyze the clinical features of infective endocarditis with positive antineutrophil cytoplasmic antibodies ,and compare with ANCA associated small vessel vasculitis(AASV). Methods Three IE patients with positive ANCA were analyzed, and 13 cases from literatures were reviewed. Results Sixteen patients had positive anti-PR3 ANCA, in which 2 cases had both positive (anti-PR3 and anti-MPO ANCA) ANCA. All patients had some clinical manifestations mimic AASV, including fever ( 13/16, 81% ), rash (8/16, 50% ), rapidly progressive glomerulonephritis (7/16, 44% ), splenomegaly (6/16, 38% ). Streptococcal species were identified in 12 patients, and cardiac valvular abnormalities were demonstrated in all patients. All patients except 2, who died of cerebral hemorrhage followed by cerebral infarction, recovered with antibiotic therapy. Conclusion Infective endocarditis sometimes can have the same clinical features as AASV, so physicians should carefully differentiate between them when dealing with patients with positive ANCA antibodies.
2.The brain pharmacokinetical study of different diameters neurotoxin-Ⅰ nanoparticles after intranasal administration in rats
Qiang BAO ; Xinjun CAI ; Fanzhu LI
Chinese Pharmacological Bulletin 1986;0(06):-
Aim To prepare NT-Ⅰ loaded nanoparticles with different diameters modified by Methylated-polyethyleneglycol (Me-PEG) and evaluate their brain pharmacokinetics after administered nasally in rats. Methods NT-Ⅰ-NP was prepared by emulsion/solvent evaporation method and MePEG-PLA was used as the carrier material. Microdialysis technique and fluorospectrophotometry were used to determine NT-Ⅰ concentration after nasal administration in the brain of rats. Results The appearance of all NT-Ⅰ-NP groups was round or similar. The AUC(0-t) of below 100 nm NT-Ⅰ-NP was 1.22 fold as that of 100~200 nm NT-Ⅰ-NP,1.34 fold as that of 200~300 nm and 1.60 fold as that of exceed 300 nm NT-Ⅰ-NP(P
3.Effect of c-fos Antisense on Neuronal Apoptosis in Rats′ Brain with Pentyleneterazol-Induced Seizure
yue-ying, LIU ; bao-qiang, YUAN
Journal of Applied Clinical Pediatrics 2006;0(15):-
Objective To probe the effect of c-fos gene on the pentyleneterazol-induced hippocampal neurons apoptosis.Methods Using immunohistochemistry,TUNEL and flow cytometry(FCM),we detected the Fos expression and the apoptosis of hippocampal neurons;we injected c-fos antisense into ventrile before epilepsy and detected as up.Results Epilepsy can induce the expression of Fos in the hippocampus and peaking at 1 h(P
4.Relationship between Infantal Epilepsy and Human Cytomegalovirus Infection
hua, CHENG ; bao-qiang, YUAN ; ming, LU
Journal of Applied Clinical Pediatrics 2006;0(22):-
Objective To explore the relationship of human cytomegalovirus(HCMV) infection and infantal epilepsy.Methods Fluorescence quantitative polymerase chain reaction was employed to detect the urine HCMV-DNA in 20 healthy children and 52 infants with epilepsy,and the changes in head CT scanning and brainstem auditory evoked potential were determined in HCMV positive and negative epilepsy infants.Results Positive HCMV-DNA was found in 31(59.62%)infants with epilepsy and 6(30%)healthy infants,there was significant difference between two groups(P
6.Logistic regression analysis on the risk factors for external hydrocephalus after traumatic brain injury in the infants and young children
Yongfeng BAO ; Qiang ZHUANG ; Longhai XIAO ; Zongcai ZHANG ; Hao QIN
Clinical Medicine of China 2011;27(7):680-682
Objective To analyze the risk factors for the external hydrocephalus (EH) after traumatic brain injury in the infants. Methods The clinical data of 178 cases of infants and young children with traumatic brain injury from March 2004 to April 2009 were retrospectively analyzed. Univariate and logistic regression analysis were performed to identify the clinical risk factors for EH after traumatic brain injury. Results By univariate regression analysis, age, GCS score after trauma, coma duration, brain contusion, subarachnoid hemorrhage and epilepsy were risk factors for external hydrocephalus in the infants and young children (Ps < 0.05). Gender,traumatic wet lung and usage of mannitol were less relevant to EH (Ps >0. 05). The incidence of EH after traumatic brain injury in the infants and young children was 14% (25/178 ). Age ( OR = 0.5743 ) , coma duration after trauma (OR =3.0628) ,subarachnoid hemorrhage (OR =3.7093),brain contusion(OR = 4.7892) and post-trauma epilepsy (OR =2. 9976) were risk factors for EH (Ps < 0. 05). Conclusion Younger than 2 years old, low GCS score, long coma duration, brain contusion, subarachnoid hemorrhage and epilepsy would increase the risk of EH after traumatic brain injury in the infants and young children. This study provides information for the prevention of EH after traumatic brain injury in the infants and young children.
8.Determination of Influenza Virus H5N1 and H7N9 Using MASA Technology.
Jing YUAN ; Linlin BAO ; Qiang WEI ; Chuan QIN ; Lili XU
Chinese Journal of Virology 2015;31(6):607-614
To set up a new rapid method for the rapid determination of influenza virus H5N1 and H7N9 basing on the Multi-Analyte Suspension Array (MASA) technology. Sequence analysis and design of degenerate primers and specific probes were set in the comparison and analysis of H5, N1, H7 and N9 genes. In combination with MASA technology, these primers and probes were used for the determination of samples of H5N1 and H7N9 and other subtypes ( H1N1, PH1N1, H5N2, H3N2 and H9N2). We developed a rapid determination method. This method had high specificity and sensitivity that could detect H5N1 and H7N9 at one time, and could detect samples that containing 10 copies of H5N1 and H7N9. This determination method could be used for rapid determination of influenza virus H5N1 and H7N9 at one time.
Humans
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Influenza A Virus, H5N1 Subtype
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classification
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genetics
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isolation & purification
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Influenza A Virus, H7N9 Subtype
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classification
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genetics
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isolation & purification
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Influenza, Human
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virology
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Oligonucleotide Array Sequence Analysis
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methods
9.The Measurement of Hippocampal T_2 Relaxation Time in Healthy Chinese and Its Influencing Factors
Chun FANG ; Erzhen WANG ; Qiang BAO ; Fangrong YU ; Lizhang WANG
Journal of Practical Radiology 1991;0(03):-
0.05).However,HCT2s of right side and left side were significantly negatively correlated to age(r=-0.606,-0.522;P=0.000,0.000).Conclusion HCT2s in healthy Chinese aged 10~59 year measured on SE dual echo images are quite stable,and age is an influencing factor of HCT2,but not side,sex and handedness.
10.Study on Improving the Quality Standard of Gubi Zhitong Liquor
Xixiang LI ; Xingyong LI ; Qiang BAO ; Xuemei WANG
China Pharmacy 2017;28(9):1249-1253
OBJECTIVE:To improve the quality standard for Guibi zhitong liquor. METHODS:TLC was used for the qualita-tive identification of Radix angelicae,Notopterygium incisum,Radix aucklandiae and Magnolia officinalis in the preparation;HPLC was used for the contents determination of imperatorin and cinnamaldehyde:the column was Waters Symmetry Shield RP-C18 with mobile phase of methanol-water for imperatorin(60:40,V/V)and methanol-water for cinnamaldehyde(35:65,V/V)at a flow rate of 1.0 mL/min,detection wavelength was 254 nm for imperatorin and 290 nm for cinnamaldehyde,column temperature was 25℃,and the injection volume was 20μL. RESULTS:The TLC spots of R. angelicae,N. incisum,R. aucklandiae and M. of-ficinalis were clear and well separated,negative control without interference. The linear range was 3.0-30.0 μg/mL for imperatorin (r=0.9998)and 3.978-39.78 μg/mL for cinnamaldehyde(r=0.9999);RSDs of precision,stability and reproducibility tests were lower than 2.0%;recoveries were 96.94%-102.64%(RSD=2.37%,n=6)and 96.78%-99.53%(RSD=1.00%,n=6). CONCLU-SIONS:The improved standard more effectively control the quality of the Guibi zhitong liquor.