1.Physical activity prevalence study in Shanghai city.
Yang LI ; Wei-Ting LI ; Ben-Hao FAN ; Hua FU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(6):458-460
Adolescent
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Adult
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Aged
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China
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epidemiology
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Humans
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Male
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Middle Aged
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Motor Activity
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Urban Population
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Young Adult
2.Epidemiological study on the occupational noise exposure and hypertension in mechanic factory workers.
Li-zhang CHEN ; Li-juan PANG ; Ben-yan FU
Chinese Journal of Epidemiology 2005;26(11):897-900
OBJECTIVETo study the relations of noise expose and hypertension in mechanic factory workers.
METHODSA cross-sectional study on 1205 workers (exposed to different noise levels) in Hunan was carried out, using questionnaire, blood pressure of the workers and the exposure level to noise at workplace.
RESULTSThe prevalence of hypertension was 12.1% in mechanic factory workers. There was an increasing tendency of hypertension rate along with the increase of accumulative noise doses (tendency chi-squared = 29.932, P < 0.01). Result by logistic regression analysis after adjusting age, history of hypertension in parents and body weight index showed that the risk of hypertension increased about 5% by 1 dB(A) of more noise exposure (OR = 1.047).
CONCLUSIONNoise exposure might serve as a risk factor of hypertension. Reducing the sound pressure level in workshops could work as an effective measure to control the incidence rate of hypertension in mechanic factory workers.
Adult ; Demography ; Female ; Humans ; Hypertension ; epidemiology ; etiology ; prevention & control ; Logistic Models ; Male ; Middle Aged ; Noise ; adverse effects ; Occupational Exposure ; adverse effects ; statistics & numerical data ; Risk Factors ; Surveys and Questionnaires
3.Prevalence and influence factors of hypertension among mechanic factory workers.
Li-Juan PANG ; Li-Zhang CHEN ; Ben-Yan FU
Journal of Central South University(Medical Sciences) 2005;30(3):276-279
OBJECTIVE:
To determine the status and influence factors of hypertension on mechanic factory workers and to provide reference for further hypertension prevention and control.
METHODS:
A cross-sectional study on 1205 workers (exposed to different noise levels) in Hunan was carried out by using questionaire and measuring the blood pressure of the workers and the noise exposure level in the workplace. The prevalence and the influence factors of hypertension among mechanic factory workers were analysed.
RESULTS:
The hypertension prevalence was 12.1%. Logistic regression analysis showed the body weight index (BMI), age, and history of hypertension in parents and accumulative noise dose levels influenced the hypertension prevalence.
CONCLUSION
Controlling the body weight, reducing alcohol consumption, decreasing the sound pressure level in workshops and advocating healthy diet may reduce the prevalence rate of hypertension among mechanic factory workers.
Adult
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Body Weight
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China
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epidemiology
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Cross-Sectional Studies
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Female
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Humans
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Hypertension
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epidemiology
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etiology
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Logistic Models
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Male
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Mechanics
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Middle Aged
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Noise, Occupational
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adverse effects
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Prevalence
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Risk Factors
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Surveys and Questionnaires
4.Evaluation of resultant cardiac vector based on voltage distribution of electrocardial field around ex vivo guinea pig heart.
Journal of Southern Medical University 2008;28(7):1215-1216
OBJECTIVETo evaluate the possibility of resultant cardiac vector of ex vivo guinea pig heart.
METHODSECGs were recorded in 4 directions on every plane, and in each direction 4 points at different distances from the anterior, posterior, right and left of isolated guinea pig ventricles immersed in normal saline and distilled water.
RESULTSMain upward waves of ECGs were recorded at all points in 4 directions at 3 levels in the two media. The voltage distribution of normal electrocardial field of the QRS wave was of all-round outward shape, which did not match the resultant cardiac vectors between the left and right and between the anterior and posterior ventricular walls.
CONCLUSIONThere are some confusion and contradiction in the resultant cardiac vector based on the voltage distribution of electrocardial field around ex vivo guinea pig heart.
Animals ; Electromagnetic Fields ; Female ; Guinea Pigs ; Heart ; physiology ; In Vitro Techniques ; Male ; Vectorcardiography ; methods
5.Comparison between the head-chest leads electrocardiogram and routine leads in the manifest accessory pathways in patients with Wolff-Parkinson-White syndrome.
Journal of Southern Medical University 2008;28(10):1795-1797
OBJECTIVETo observe whether there was difference between the head-chest leads electrocardiogram (HCECGs) and routine lead electrocardiogram (RLECGs) in the manifest accessory pathways in patients with Wolff-Parkinson-White syndrome.
METHODSHCECGs and RLECGs were recorded simultaneously in patients with Wolff-Parkinson-White syndrome, whose manifest accessory pathways had been confirmed by radiofrequency catheter ablation and intra-cardiac electrophysiology according to the same standard set beforehand. The diagnosis of pathways location was made by analysis of each HCECG and RLECG by two senior physicians in clinical electrophysiology. The diagnostic accuracy of the HCECGs and RLECGs was evaluated by the comparison with that of the intra-cardiac electrophysiology. The delta wave size was also compared between HCECGs and RLECGs.
RESULTSThe diagnostic accuracy in the manifest accessory pathways was 86.2% (50/58) in RLECGs, and 84.4% (49/58) in HCECGs in the 58 patients with Wolff-Parkinson-White syndrome, showing no significant difference between them (P > 0.05), but each delta wave in HCECG was more evident than that in RLECG.
CONCLUSIONHCECG and RLECG both have high diagnostic accuracy in the manifest accessory pathways in patients with Wolff-Parkinson-White syndrome.
Body Surface Potential Mapping ; Electrocardiography ; Humans ; Wolff-Parkinson-White Syndrome ; diagnosis ; physiopathology
6.Relationship between reference point potential and potential distribution of normal electrocardial field on the thoracic surface of healthy individuals.
Journal of Southern Medical University 2008;28(9):1640-1645
OBJECTIVETo explore the effect of reference point on the potential distribution of normal cardioeleclric field of healthy individuals.
METHODSTwo different reference points including central terminal and right forehead were applied to record electrocardiogram simultaneously from 15 testing points (V(1)-V(6), V(7)-V(9), V(3R)-V(8R)) of Wilson lead (RL) and the same testing points (HV(1)-HV(9), HV(3R)-HV(8R)) of head-chest (HC) lead around the torso of healthy individuals. Chi-square test was performed to observe statistical difference between the HCECGs and RLECGs according to different shapes of QRS and T waves.
RESULTSAmong 120 healthy individuals, deformed ECGs appeared in V(1) and HV(3R)-HV(8R) leads, with 20% (24/120) inverted T wave in V(1) lead, 100% (120/120) in V(3R)-V(8R) leads, wide or deep Q wave 100% (120/120) in V(4R)-V(8R) leads. However, in the corresponding HC-lead system, T waves were all positive, and QRS waves were upright as the pattern of rs, RS or qRs. There was statistical difference in the form of ECG between V(1), V(3R)-V(8R) of Wilson lead and the corresponding HC-lead (P<0.05). The distribution of normal cardioeleclric field related to QRS-T wave was of all-round outward shape by HC-lead, and of roughly bipolar shape by Wilson lead for inverted QRS-T wave on the right thoracic surface.
CONCLUSIONThe normal distribution of electrocardial field is determined by the potential of the reference point. The forehead of HC-lead seems to be better than the central terminal as the reference point of the lead system.
Adolescent ; Adult ; Body Surface Potential Mapping ; methods ; standards ; Chi-Square Distribution ; Female ; Heart ; physiology ; Humans ; Male ; Middle Aged ; Reference Values ; Young Adult
7.Surgical treatment for displaced clavicle fracture combined with coracoid process: 9 cases report.
Bao-bing YAO ; Liang ZHA ; Cheng-guo YIN ; Tong-li WANG ; Wen-de WANG ; Ye-ben WANG ; De-fu WU
China Journal of Orthopaedics and Traumatology 2014;27(12):1043-1046
OBJECTIVETo explore clinical effects of internal fixation in treating displaced clavicle fracture combined with coracoid process.
METHODSFrom January 2005 to July 2012, 9 patients with displaced clavicle fracture combined with coracoid process were treated by internal fixation. Among them, there were 6 males and 3 females with an average age of 40.1 (ranged from 20 to 57) years old. According to Eyres classification: 3 cases were type II B, 1 case was type II A, 3 cases were type III B, and 2 cases were type V A. All patients had history of injury, and diagnosed as coracoid fracture X-ray and CT before operation. Herscovici criteria was used to evaluate function of shoulders joint after operation.
RESULTSSeven of 9 patients were followed up from 6 to 18 (averaged 11) months. The incisions were healed at stage I, coracoid process obtained bony healing, and reduction of acromioclavicular joint well. According to Herscovici criteria, 6 patients got excellent results and 1 in good.
CONCLUSIONInternal fixation for the treatment of displaced clavicle fracture combined with coracoid process could restore physiological anatomical position of coracoid process, and benefit for recovery of limb function.
Adult ; Clavicle ; injuries ; Female ; Fracture Fixation, Internal ; methods ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Recovery of Function ; Scapula ; injuries ; Shoulder Joint ; injuries
8.Synthesis and antifungal activity of the novel azole compounds
Xuefeng KE ; Jingzhe LI ; Ben FU ; Liangjing LI ; Xiaoyun CHAI ; Qiuye WU
Journal of Pharmaceutical Practice 2017;35(1):22-25,59
Objective To design and synthesize novel triazole antifungal derivatives with 1 ,3 ,4-oxadiazole side chain for the study of antifungal activities. Methods Fourteen title compounds were synthesized via acylation ,aminolysis reaction ,cy-clization ,nucleophilic substitution ,etc. All the compounds were characterized by 1 H NMR ,MS spectra. The in vitro antifun-gal activities were evaluated against six human pathogenic fungi through the micro-broth dilution method. Results The title compounds exhibited strong antifungal activities against all the tested fungi ,especially against Candida albicans. Compounds 10d ,10i , 10l , and 10n were found to be the most effective , with a minimum inhibitory concentration (MIC80 ) of 0.003 9 μg/ml .They are 16-fold more potent than ICZ ( MIC80 0.062 5 μg/ml) and 64-fold more potent than FCZ (MIC80 0.25 μg/ml) .Conclusion The 1 ,3 ,4-oxadiazole side chain could affect the antifungal activities. That could be due to the prop-er incorporation between the 1 ,3 ,4-oxadiazole substituted phenyl ring with the target enzyme.
9. Biomarkers for assessing motor dysfunction after stroke
Yaxin YANG ; Ying LI ; Haifeng YUAN ; Jing FU ; Wenjuan LI ; Hui ZHANG ; Ben MA ; Qiaojun ZHANG
Chinese Journal of Physical Medicine and Rehabilitation 2019;41(10):740-744
Objective:
To investigate whether diffusion tensor imaging (DTI) and motor evoked potentials (MEP) can be used as biomarkers to assess the degree of motor dysfunction of stroke survivors.
Methods:
Sixty partially-paralyzed stroke survivors were given Fugl-Meyer assessments (FMAs) and MEP tests and assessed using DTI seeking any correlations among the results. The receiver operating characteristics curves (ROCs) were prepared to determine the tests′ efficacy in assessing severe motor dysfunction.
Results:
① Asymmetry in the fractional anisotropy (aFA) of the peduncles cerebra as measured by DTI was negatively correlated with the FMA scores of the upper and lower limbs on the affected side. The aFA values of the posterior limb of the internal capsule (PLIC) were negatively correlated with the FMA scores of the affected upper limb, but not with the FMA scores of the affected lower limbs. The abnormalities in central motor conduction time and motor threshold, which are MEP parameters, were negatively correlated with the FMA scores of the affected limbs. ② The ROCs showed that the aFA value of the PLIC was the best indicator for assessing severe upper limb motor dysfunction, with a cut-off value of 0.167 giving the best discrimination. MEP waveform loss could also be used. It has high sensitivity but low specificity. ③ A combination of DTI and MEP can improve specificity in assessing severe motor dysfunction in the upper limbs.
Conclusion
DTI and MEP can both be used to evaluate motor dysfunction in stroke survivors. They have high clinical value for assessing severe motor dysfunction of the upper limbs.
10.Acupuncture inhibiting responses of spinal dorsal dorsal horn neurons induced by noxious dilation rectum and colon.
Pei-jing RONG ; Bing ZHU ; Qi-fu HUANG ; Xin-yan GAO ; Hui BEN ; Yan-hua LI
Chinese Acupuncture & Moxibustion 2005;25(9):645-650
OBJECTIVETo study on mechanisms of acupuncture in relieving visceral pain.
METHODSIn SD rats CRD was used as noxious visceral stimuli. Activities of spinal dorsal horn wide dynamic (WDR) neurons of L1-L13 were recorded by extracellular microelectrode technique. Acupuncture was given at ipsi-lateral and contra-lateral Zusanli (ST 36) of the same segmental innervation of rectum and colon.
RESULTSVisceral noxious afferent could significantly activate spinal dorsal horn convergent neurons, and mechanical stimulation of contra-lateral body surface and hand acupuncture at Zusanli (ST 36) could inhibit this noxious response. When the spinal cord was acutely blocked, the inhibiting CRD effect of needling CRD effect of needling contra-lateral Zusanli (ST 36) completely disappeared.
CONCLUSIONAcupuncture and visceral noxious afferent signals converge and interact each other in spinal level, and acupuncture at acupoint can inhibit the spinal dorsal horn neuron respon se activated by visceral noxious afferent and this action needs the participation of the center above the spinal cord.
Animals ; Colon ; innervation ; Nociceptors ; Posterior Horn Cells ; Rats, Sprague-Dawley ; Rectum ; Spinal Cord