1.An analysis of 717 Cases with Multiple Wounds Caused by Firearms
Chinese Journal of Trauma 1991;0(S1):-
In modern war the multiple wounds caused by projectiles, such as exploded artilery shells, hand grenades and mines, often occured. In the paper the characteristics of the multiple wounds were discussed based on 717 cases of war wounds. The characteristics Included the extensive wounds, high incidence of shock and the blind wounds. The remote effect was often seen in these cases. And also the treatment principles of these wounds were dicussod in this paper.
2.Clinical significance of endothelin-1 and P-selection in coronary heart disease
Chinese Journal of Rehabilitation Theory and Practice 2003;9(4):250-251
ObjectiveTo explored the relationship among endothelin-1(ET-1), P-selection and troponin I(CTnI) in acute myocardial infarction (AMI) and unstable angina (UA).MethodsPlasma level of endothelin-1 was analyzed by radioimmunoassay, the expression of P-selection was analyzed by flow cytometery technique and troponin I was analyzed by paramagnetic partile chemiluminescent immunoassay in 23 AMI cases, 21 UA cases and 28 healthy controls.ResultsPlasma levels of ET-1 and CTnI in AMI patients were higher than in controls(P<0.05). The expression of P-selection in AMI patients was higher than in controls (P<0.01).Plasma levels of ET-1 and expression of P-selection in UA patients were higher than in controls (P<0.05). There was an increased trend of CTnI in UA patients in contrast to controls, but without statistical significance(P>0.05).As compared with UA, plasma levels of CTnI and expression of P-selection were elevated in AMI patients (P<0.05). No significant difference was observed between AMI and UA cases in plasma level of ET-1. Multivariate regression analysis revealed that P-selection was significantly associated with AMI and UA cases compared with plasma level of CTnI (r=0.404,P<0.01).ConclusionsPlasma levels of ET-1 and P-selection were sensitive markers as prethrombolic status.
3.EFFECTS OF GATING MODIFIERS OF MEMBRANE IONIC CHANNEL ON EXCITABILITY OF NERVES
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(02):-
Fffects of three gating modifiers of membrane ionic channel, aconitine (AC), deoxycholate (DOC) and Ca~(2+), on the excitability of nerves and the cxcitability index, standard clectrical quantity "a" were observed on 38 crayfish giant axons and 60 toad sciatic-peronael nerves. Results showed. that "a" is related to the activating rate of sodium channel and re(?)ts changes of clectrical quantity which is necded in opening the activation gating of sodium channel and producing the action potential.
4.The valuable of expressed prostate secretion pH test in the diagnosis of chronic prostatitis
Chinese Journal of Primary Medicine and Pharmacy 2008;15(4):618-619
Objective To discuss the value of expressed prostate secretion(EPS) pH test in the diagnosis of chronie prostatitis. Methods EPS was obtained from 86 out-patients with chronic prostatitis, pH test and microscopy field being studied, prostate ultrasonography was performed after filling bladder. Results Mean pH of the EPS was (7.0±0.5), EPS-WBC was (20±10)/HP, and prostate ultrasonography positive rate were 63.9 % (55/86). pH of the EPS and the frequency of ultrasound abnormal ities were significantly correlated to the WBC in EPS.There was no correlation between age, disease process duration and the pH of EPS. Conclusion In chronic prostatitis, EPS-pH was positively correlated with the ultrasonography abnormalities and the WBC elevation of EPS, and EPS-pH test in the diagnosis of chronic prostatitis were meaning and value.
5.Association between cytotoxic T lymphocyte associated antigen-4 gene polymorphism and ankylosing spondylitis susceptibility: a meta-analysis
Chinese Journal of Rheumatology 2017;21(8):547-552
Objective To explore the association between cytotoxic T lymphocyte associated antigen-4 (CTLA-4) gene polymorphism and susceptibility to ankylosing spondylitis (AS). Methods The case-control studies from Chinese Biomedical Database, Chinese National Knowledge Infrastructure, Wanfang, Weipu, PubMed, Cochrane Library, OvidSP, Wiley Online Library, Elsevier Science Direct, Springer Link databases for the association of CTLA-4 gene polymorphism with AS. The association strength was assessed with chi-squared test by Stata 12.0 software. Results Seven references of CTLA-4 gene +49A/G (rs231775) polymorphism were enrolled which included 1119 AS patients and 995 controls (healthy subjects or non-AS patients), which showed that there were no statistical difference between AS and control groups under recessive, dominant, co-dominant, additive and allele gene models. Five references of CTLA-4 gene-318C/T (rs5742909) polymorphism were enrolled which included 635 AS patients and 512 controls, which showed that there were no statistical difference between AS and control groups under recessive and additive gene models; however, there were statistical difference between AS and control groups under dominant model [ OR=1.651, 95%CI (1.052, 2.590), P=0.029], co-dominant model [OR=0.621, 95%CI (0.403, 0.957), P=0.031] and allele model [OR=1.587, 95%CI (1.068, 2.357), P=0.022]. Conclusion The meta analysis reveal that CTLA-4 gene rs231775 single nucleotide polymorphism is not associated with the susceptibility to AS; rs5742909 SNP is associated with the susceptibility to AS, which suggests that C→T mutation increases the risk of AS.
6.Effect and mechanism of etanercept on pulmonary fibrosis in mice induced by bleomycin
Chen CHEN ; Xiaomin JIA ; Jie ZHAO
Chinese Journal of Immunology 2016;32(4):483-485
Objective:To observe the effect of etanercept on bleomycin-induced pulmonary fibrosis in mice and its possible mechanisms.Methods:Thirty male SPF Kun ming mice were randomly assigned to control group ( intratracheal saline injection ) or model group ( intratracheal injection of bleomycin 5 mg/kg ) or intervention group ( intratracheal bleomycin injection followed by etanercept 3 mg/kg intraperitoneal administration twice a week )(n=10 group).Lung tissue were taken after the sacrifice of the mice with 28 days of molding.The content of hydroxyproline of the right lung samples was measured by alkaline hydrolysis method ,while the left lungs were fixed in 4%paraformaldehyde and embedded in paraffin with the sections stained with hematoxylin -eosin or Masson′s trichrome for pathological examination .Total tissue protein was extracted from lung homogenates to detect the expression of NF -κB and phosphorylation of NF-κB( P-NF-κB) by Western blot.Results:The content of hydroxyproline in lung tissue of mice of intervention arm was decreased significantly compared with the model arm ( P<0.01 ).The alveolar structure of the intervention arm maintained integrity with alveolar septum slightly thickened.The inflammation and fibrosis scores were decreased significantly with noticeable greater improvement of pulmonary fibrosis than the model arm (P<0.01).In addition,the protein phosphorylation of NF-κB in the lung tissues was remarkably decreased in the intervention arm ( P<0.01 ).Conclusion: Etanercept can inhibit the phosphorylation of NF-κB and reduce lung inflammation and fibrosis caused by bleomycin in mice ,which may be useful in the treatment of pulmonary fibrosis.
7.Progress in plexiform lesion of pulmonary hypertension
Xiaomin JIANG ; Ling ZHOU ; Shaoliang CHEN
Chinese Journal of Pathophysiology 2014;(8):1519-1522
[ABSTRACT]Pulmonaryarterialhypertensionisdefinedasamultifactorialgroupofpulmonaryvasculardisorders characterized by a progressive increase in the pulmonary vascular resistance , resulting in right heart failure and premature death.The plexiform lesion is the hallmark of severe pulmonary arterial hypertension .This article summarized the recent progress in the plexiform lesion including its occurrence , structure, animal models and molecular mechanism , which tried to predict the tendency of plexiform lesion study .
8.Treatment of lumbar spondylolisthesis with spinal bifida occulta
Xiaomin GU ; Lianshun JIA ; Xiongsheng CHEN
Orthopedic Journal of China 2006;0(01):-
Objective To approach the treatment principle of lumbar spondylolisthesis with spina bifida occulta. Methods Twenty-six patients(male19,female 7,average 23.2 years old)with spondylolisthesis and spina bifida occulta were analyzed retrospectively.All cases were evaluated by radiological examinations including X-rays,computed tomography,magnetic resonance image.Based on the radiological results,the degeneration of intervertebual disc were varied by Ⅰ~Ⅴ types.Meyerdin’s score was used to evaluate the severe slip of the body of spondylolysis.At same time spina bifida occulta was divided into 4 models as follows,type A meant that the semi-lamina of sacrum was hypoplasia and still linked with spinous process;type B meant that the both sides of the lamina of sacrum was hypoplasia and the spinous process was free;type C meant that the lamina of sacrum was absent;type D meant that the spina bifida occulta was companied by other deformities such as the round formation of the end-plate of sacrum,the deformity of the transverse process of L5. Results The modality of the operations included 9 cases in single-vertabra fixation,13 cases in single-segment fixation,4 cases in two-segment fixation.All patients had been follow-up for 6~37 months(average 11.2 months).The effect of treatment was also obtained(8 in excellent,13 in good,5 in fair). Conclusions As for how to do with spondylolisthesis with spina bifida occulta(SBO),the type of SBO,degeneration scores of the disc and the degree of the slip of spondylolysis should be taken into consideration.
9.Aminoglycosides Modifying Enzyme Genes of Acinetobacter baumannii in Burn Unit
Lin CHEN ; Xiaomin XU ; Xianghui HE
Chinese Journal of Nosocomiology 2005;0(11):-
OBJECTIVE To study the aminoglycosides modifying enzyme genes and detect resistance of the Acinetobacter baumannii in burn unit.METHODS The susceptibility of the A.baumannii strains to 11 antibiotics were tested by K-B method.The aminoglycosides modifying enzyme genes were analyzed using polymerase chain reaction(PCR).RESULTS The resistance rate to antibacterials was as follows:to TZP 61.85%,SCF 23.69%,CAZ 64.48%,FEP 63.17%,IPM 63.17%,AK 56.58%,and to CIP 73.69%.In 76 strains of A.baumannii,48 strains(63.16%) were with aac(3)-Ⅰ,39(51.32%) with aac(6′)-Ⅰ,and 46(60.53%) with ant(3″)-Ⅰ,others were negative.The total test rate of aminoglycosides modifying enzyme gene was 63.16%.CONCLUSIONS There are not only multi-drug-resistance but also 63.16% aminoglycosides modifying enzyme genes of the A.baumannii isolated from burn unit.
10.Data acquisition system based on LabVIEW platform
Peixin CHEN ; Xiaomin WANG ; Chi GUO
Chinese Medical Equipment Journal 1989;0(02):-
This paper introduces the hardware of data acquisition system based on LabVIEW platform, i.e. the system for data acquisition and control. The system is composed of the units for signal selection, programmable magnification, filtration, restriction, and A/D and D/A conversion circuits. With the system, the following can be available including eight-channel low-frequency signals, eight options on programmable magnification, 1000Hz low-pass filter, 50Hz power-frequency trap, and A/D and D/A conversion.