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1.
Article in Chinese | WPRIM | ID: wpr-707696

ABSTRACT

Objective To explore the feasibility of establishing an acute pericardial effusion animal model guided by ultrasound. Methods Six experimental pigs were anesthetized. A PTC needle was injected and guided to the right ventricular anterior wall under real-time high frequency ultrasound,40 ml and 80 ml normal saline were respectively infused into the pericardial cavity within 5 minutes. Ultrasonography and pathologic examination were applied to confirm this porcine model. The amount of the fluid was estimated by ultrasound at 1 hour and 8 hours after infusion. Results With ultrasound guidance,the PTC needle smoothly entered the pericardial cavity and the saline was successfully injected. The fluid dispersed from local to the entire pericardial cavity. Pericardial effusion last within 8 hours and no significant change of the fluid amount was found (all P >0.05). This acute pericardial effusion model was successfully established with a rate of 100%. Conclusions It is feasible to establish an animal model of acute pericardial effusion under the guidance of ultrasound. This method is safe,rapid and effective. It can provide a suitable animal model for the study of acute pericardial effusion.

2.
Article in Chinese | WPRIM | ID: wpr-806981

ABSTRACT

Objective@#To study the correlation of lifestyle characteristics with thyroid nodules in a population-based sample of centenarians in Hainan.@*Methods@#The study was based on China Hainan Centenarian Cohort Study (CHCCS) conducted in 18 cities and counties in Hainan province from 2014 to 2016. A group of multidisciplinary team interviewed and examined local centenarians with structured questionnaires and ultrasonography procedures. A total of 918 centenarians were analyzed after excluding those who refused ultrasonographic examinations or had relevant missing data. Thyroids of centenarians were examined by 3-year experienced sonographer, details on lifestyle characteristics and dietary habits were collected by standard procedure.@*Results@#Of the 918 centenarians, 683 (74.4%) had thyroid nodules under the ultrasonography procedures. The prevalence of thyroid nodules in different group of areca nut consumption varied significantly (P<0.05). In multivariate logistic regression model, the results showed female and areca nut intake were independently associated with thyroid nodules in centenarians (P<0.05).@*Conclusions@#The modifiable variables including areca nut intake as well as non-modifiable such as gender are independent determinants of thyroid nodules in centenarians. Further studies are warranted to explore and verify these associations in populations with different ranges of age.

3.
Article in Chinese | WPRIM | ID: wpr-667136

ABSTRACT

Objective To investigate the prevalence of thyroid nodules(TN)among centenarians in Hainan province and explore the association between thyroid nodules and major chronic diseases.Methods A mixed cross-sectional study of questionnaire survey,medical examination including ultrasonography and laboratory examination were conducted in elderly who resided in Hainan province and aged 100 and over,the subjects who have signed consent and complete data in both basic information and medical examination were included in this study.Eight hundred and four centenarians were finally enrolled and data of them was analyzed to investigate the prevalence of thyroid nodules and to explore its association with common chronic diseases by comparing the prevalence of chronic conditions between groups with and without thyroid nodules.Results The overall prevalence of TN was 73.5%(591、804)and the prevalence of TN was significantly higher in female when comparing with male[75.1%(505、672)vs 65.2%(86、132)](P <0.001).No significant correlation was found between the prevalence of TN and major chronic diseases (P>0.05),however,the factors associated with dyslipidemia and anemia such as TC[(4.6±1.2)mmol、L vs(4.3±1.5)mmol、L],LDL-C[(2.8±0.8)mmol、L vs(2.7±0.8)mmol、L],and Hb[(110.6±22.5)g、L vs(105.5±31.7)g、L]were significant higher in TN group than those in Non-TN group(P <0.05). Conclusions The thyroid nodule is common in centenarian population and its prevalence was higher in female than male.The associations between TN and biomarkers of dyslipidemia and anemia are found in the present study.

4.
Chinese Circulation Journal ; (12): 573-575, 2015.
Article in Chinese | WPRIM | ID: wpr-467883

ABSTRACT

Objective: To test the feasibility of drag-reducing polymers (DRP) for improving coronary microcirculation in a canine model in order to provide the experimental basis for treating myocardial microcirculation dysfunction. Methods: A total of 8 dogs received open-chest surgery and they had intravenous injections, in turn, with adenosine (ADN), DRP 250 mg/L and DRP+ADN. The function y=A × (1-e-βt) was used to calculate the myocardium capillary volume (A value), capillary velocity (β value) and myocardial blood lfow (A ? β value) by myocardial contrast echocardiography. Results: With DRP infusion, the A value in experimental canine was similar to the baseline condition,P>0.05; while theβ value and A ? β value were signiifcantly increased as (0.57 ± 0.10) 1/s vs (0.23 ± 0.03) 1/s,P0.05. Conclusion: DRP improved coronary microcirculation primarily by modulating the β value in experimental canine model, and hopefully, this unique hemodynamics could provide a new approach for treating myocardial microcirculation dysfunction.

5.
Chinese Journal of Pathophysiology ; (12): 1617-1620, 2015.
Article in Chinese | WPRIM | ID: wpr-479248

ABSTRACT

AIM:To analyze the relationship between epicardial adipose tissue (EAT) thickness and plasma N-terminal pro-B-type natriuretic peptide ( NT-proBNP ) level in the patients with stable coronary artery disease . METHODS:The patients with chest pain ( n=115) admitted to our hospital underwent coronary artery computer tomo-graphy and further underwent coronary angiography for confirming whether they had coronary artery disease .EAT thickness was evaluated at the right ventricular free wall imaged by coronary artery computer tomography .Plasma NT-proBNP level was examined by an automatic biochemistry analyzer .RESULTS:Eighty-one patients were confirmed to have stable coro-nary artery disease and thirty-four patients were excluded to have coronary artery disease .Left ventricular ejection fraction of these patients of 2 groups were all normal.The natural logarithm of plasma NT-proBNP level [ln(NT-proBNP)] of the patients with stable coronary artery disease was significantly higher than that of the patients without coronary artery disease (P<0.05).EAT thickness of the patients with stable coronary artery disease was also higher than that of the patients with -out coronary artery disease(P<0.05).EAT thickness was related to ln(NT-proBNP) positively (P<0.05).After adjust-ment of related impact factors , EAT thickness was still related to ln (NT-proBNP) positively (P<0.05).Multiple-factor regression analysis showed that EAT thickness was the independent influence factor on LnNT -proBNP (P<0.05).CON-CLUSION:EAT thickness and plasma NT-proBNP level are both increased significantly and is related to each other in the patients with stable coronary artery disease .

6.
Article in English | WPRIM | ID: wpr-269003

ABSTRACT

<p><b>OBJECTIVE</b>To characterize a new alternative splicing isoform of human vascular endothelial growth factor (VEGF) gene.</p><p><b>METHODS</b>The total RNA was extracted from the lung tissue of a legally aborted 4-month-old fetus and amplified by RT-PCR. The amplified product was cloned into the plasmid pMD18-T and plasmid pcDNA3.1- for sequence analysis.</p><p><b>RESULTS</b>Electrophoresis of the RT-PCR products displayed one short band for VEGF(121) (487 bp) and a long band. The latter was characterized to contain two fragments: one was normal VEGF(165) (619 bp), and the other (639 bp) had an identical nucleotide sequence to VEGF(165) with a 20 bp fragment inserted between exons 3 and 4. Sequence analysis showed that this 20-bp nucleotide was inserted from the 3' end of the third intron containing a splicing signal, thus causing shift mutation in the reading frame of VEGF gene and early appearance of the stop codon UAG in the middle of exon 4.</p><p><b>CONCLUSION</b>A new alternative splicing isoform of VEGF probably exists in the lung tissue of a legally aborted human fetus, and its biological significance remains to be further investigated.</p>


Subject(s)
Alternative Splicing , Amino Acid Sequence , Exons , Frameshift Mutation , Gene Expression , Humans , Protein Isoforms , Classification , Genetics , Reverse Transcriptase Polymerase Chain Reaction , Vascular Endothelial Growth Factor A , Classification , Genetics
7.
Article in Chinese | WPRIM | ID: wpr-471807

ABSTRACT

Objective To evaluate the relationship between myocardial perfusion and diastolic function with velocity vector imaging (VVI) combined with myocardial contrast echocardiography (MCE) in dog models of coronary artery stenosis at rest and stress. Methods Different stenoses in anterior descending branch were made in 8 dogs. Before and after coronary artery stenosis, VVI evaluation was made on short axis image, then MCE were performed in the left ventricular mastoid muscle section at rest and in the peak dose of dobutamine. The myocardial blood flow A·β value and peak diastolic strain rate (SR_(dia)) on the direction of the circumference of the short view were measured, and the relationship between them was analyzed. Results At rest, no significant difference of A·β value nor SR_(dia) was found between the stenotic bed and normal bed when coronary stenosis was mild or moderate. However, A·β value and SR_(dia) of the stenotic bed were smaller than those in the normal bed when coronary stenosis was severe (P<0.05). At dobutamine stress, A·β value and SR_(dia) of the stenotic bed were already less than those in the normal bed when coronary stenosis was mild or moderate. A·β values and SR_(dia) of the stenotic bed decreased further compared to the normal bed (P<0.05) when coronary artery was severe. At both rest and stress, the standard A·β value was strongly correlated with SR_(dia) (r_(rest)=0.57,r_(stress)=0.72,P<0.01). Conclusion VVI can not only evaluate the diastolic function of myocardial segments on the short axis view, but also reflect changes of myocardial perfusion to a certain extent.

8.
Article in Chinese | WPRIM | ID: wpr-401727

ABSTRACT

Objective To explore the current status of physical exercises of patients with primary hypertension and provide basis for selective nursing intervention. Methods Investigation was carried out in 238 patients patients with primary hypertension in a third-grade and first-class hospital in Guangzhou on their physical exercises using the theory of "periodic behavior changing model". The results were ana|yzed. Results Patients who didn't plan to take physical exercises account for 19.3%,who planned to take it was 15.1%,who prepared to take it was 20.2%,who were taking it was 8.8% and who were maintaining it was 36.6%.The age and duration of illness course significantly influence the distribution of taking exercises in different stages, P<0.05.While gender and education background were not important influencing factors. Conclusion We should pay attention to increase the recognition of patients with primary hypertension to take physical exercises autonomously,especially the young and middle-aged patients.

9.
Article in Chinese | WPRIM | ID: wpr-398170

ABSTRACT

The effect of removing carotid stenosis on cognitive function is receiving considerable attention.Both carotid endarterectomy and carotid artery stenting improve cognitive function.The improvement of cognitive function after the removing carotid stenosis may be associated with the increased cerebral perfusion,the reduction of white matter lesion and the incidence of silent lacunar infarction.

10.
Article in Chinese | WPRIM | ID: wpr-381415

ABSTRACT

Objective To investigate the mental health and its influential factors in wounded or disabled in patients 100 d after earthquake.Methods Sixty-one patients,sampled from inpatients who were wounded or disa bled during the earthquake and hospitalized 100 d,were assessed with SCL-90.Results Twenty-eight(45%) patients'scores of SCL-90 were>160.The mental health of wounded or disabled patients after earthquake WaS corre lated with the severity of themselves physical disability.acception of early psychological intervention and the condition of wound or death in family members;but was not correlated with age,gender and education.Conclusion Patients who were wounded or disabled during earthquake had high incidences of mental disorder 100 d after earthquake.Their psychological recovery is as important ag physical recovery.

11.
Article in Chinese | WPRIM | ID: wpr-595675

ABSTRACT

Objective To observe the features of cognitive function impairment in different locus of cerebral stroke and study the correlation between locus of cerebral stroke and cognitive function impairment.Methods Cognitive function was evaluated by Montreal cognitive assessment(MOCA) in 100 patients with stroke(63 cases of cerebral infarction,37 cases of cerebral hemorrhage).The locus of cerebral stroke in the 100 patients were including frontal lobe 15 cases,parietal lobe 15 cases,temporal lobe 12 cases,occipital lobe 8 cases,thalamus 14 cases,basal ganglia 20,cerebellum 8 cases and pons 8 cases.Correlation between the locus of cerebral stroke located by CT/MRI,and cognitive impairment was analyzed with 7 items(ORI,EF,NAM,MEM,ATT,LANG,ABS) of MOCA.Results(1) Stroke locus in frontal lobe,temporal lobe,parietal lobe,occipital lobe,thalamus and basal ganglia had correlation with obvious cognitive function impairment(all P

12.
Article in Chinese | WPRIM | ID: wpr-545947

ABSTRACT

Objective:To identify the HLA-DRB alleles associated with vitiligo and psoriasis in Chinese Han people of Jilin region.Methods:HLA-DRB alleles of 82 vitiligo patients and 80 psoriasis vulgaris patients were detected by polymerase chain reaction sequence-specific primer(PCR-SSP),under the comparison with 86 healthy persons.Results:①The frequence of HLA-DRB1* 07 and HLA-DRB1*12 alleles increased obviously in vitiligo group compared with control group(P

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