1.Role of nitric oxide in ischemia/reperfusion injury and ischemic preconditioning
Xiangying JIAO ; Ning LUO ; Rongrui ZHAO
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: To clarify the role of nitric oxide(NO) in ischemic preconditioning(IP) and its effects on apoptosis. METHODS: Seventy-two male Wistar rats were divided into the following six groups:ischemia/reperfusion (IR) group,IP group,IR+L-arg group,IP+L-arg group,IR+L-NAME group and IP+L-NAME group,The following changes were measured:cardiac hemodynamic parameters,infarct size,PMNs counting myocardial MPO activity and TUNEL staining.RESULTS: ①L-arg significantly attenuated ischemia/reperfusion-induced heart injury,reduced PMNs infiltration and cardiomyocyte apoptosis.②L-NAME also significantly reduced infarct size,PMNs infiltration and cardiomyocyte apoptosis compared with IR group,however,L-NAME aggravated ischemia/reperfusions-induced cardiac functional injury.③L-arg or L-NAME did not significantly alter the protective effect of ischemic preconditioning. CONCLUSION: Increased production of endogenous NO before prolonged ischemic period can protect hearts and inhibit apoptosis.L-NAME can inhibit iNOS activity and ONOO- production in reperfusion period to protect heart.
2.Psychological Factors Analysis of Postpartum Body Pain
Menghan LV ; Weidong WANG ; Fang WANG ; Yingna LIN ; Rongrui ZHANG ; Yang ZHAO
International Journal of Traditional Chinese Medicine 2009;31(1):55-56
"Postpartum Body pain"refers to such symptoms as body pain,numbness,heaviness,arthralgia and even paralysis in a woman during the postpartum period.Besides the above symptoms,the patient may also have other symptoms like sleep disorder,emotional hindrance,somatization symptoms such as fatigue,sleepy,and chest distress,etc.This disease may be considered as somatization symptoms due to postpartum depression,but actually it is a psychogenic disorder.Clinical observation showed there were no clinical changes of objective signs such as red,swelling and fever;Laboratory examinations showed there was no ahnormal manifestation.This article primarily discussed"postpagtum body pain"from medicopsychological angle,hoping to help people get a right recognition of this disease.
3.Biological effects of the autoantibody against ?_3-adrenoceptor from the sera of rats with heart failure
Meixia LI ; Haifeng ZHANG ; Yanqing ZHANG ; Zhongmei HE ; Xiaojun LIU ; Rongrui ZHAO ; Huirong LIU
Chinese Journal of Pathophysiology 2000;0(12):-
AIM: To investigate the relation between myocardial remodeling and the genesis of serum anti-?_3-adrenoceptor autoantibody,an animal model of heart failure(HF) was established and the biological effects of the autoantibody were observed.METHODS:(1) Healthy male Wistar rats were subjected to HF by constricting the abdominal aorta.(2) The anti-?_3-adrenoceptor autoantibody in the sera of HF rats was detected by ELISA with the synthetic peptide of the second extracellular loop of the ?_3-adrenoceptor used as the antigen.(3) IgG in the positive sera from HF rats was prepared using a MabTrap Kit(Amersham).(4) The effects of the autoantibody on the contractile response of adult(isolated) cardiomyocytes and on the beating rate of cultured neonatal rat cardiomyocytes were observed.RESULTS:(1) The positive rate of anti-?_3-adrenoceptor autoantibody of rats increased from 21.05% of pretreatment to 78.95% after heart failure(P
4.Transarterial Infusion Chemotherapy With and Without Embolisation in Hepatocellular Carcinoma Patients: A Systematic Review and Meta-Analysis.
Jing ZHAO ; Dapeng LI ; Yue SHI ; Fengling SHI ; Chengting FENG ; Wei LI ; Min TAO ; Rongrui LIANG
Annals of the Academy of Medicine, Singapore 2017;46(5):174-184
INTRODUCTIONThe purpose of this meta-analysis was to compare the efficacy of transarterial chemoembolisation (TACE) and iodised oil infusion chemotherapy without embolisation (TAI) in patients with hepatocellular carcinoma.
MATERIALS AND METHODSWe searched for randomised controlled trials, retrospective cohort studies, and two-arm prospective studies that compared the clinical outcomes in patients who received TACE and TAI treatment. Database search was performed through 14 December 2016. Rates of survival and therapy response were compared using odds ratios (OR) with 95% confidence intervals (CI).
RESULTSSurvival rates and therapy response rates were similar between patients who received TACE and TAI treatments (pooled OR: 1.278; 95% CI, 0.783 to 2.086,= 0.327; and pooled OR: 1.502; 95% CI, 0.930 to 2.426,= 0.096, respectively).
CONCLUSIONOur results suggest that treatment intensification by adding embolisation did not increase overall survival and therapy response over TAI in patients with hepatocellular carcinoma.