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Objective To investigate the serum lipids levels of Chinese men with chronic paraplegia.Methods A total of 650 male paraplegics admitted to the China Rehabilitation Research Center (CRRC) for rehabilitation therapy from Jan 2004-Dec 2008 were investigated. The inclusion criteria were a definite paraplegic history (T2-L5 spinal cord injury); complete data; age 18-60 years; and no history of stroke. TG, TC, LDL and HDL serum lipid profiles were studied. Results These male paraplegics showed significantly higher mean TG and TC levels and lower mean HDL levels than the nation-wide averages for similar males ( TG 1.72 mmol/L vs. 1.36 mmol/L; TC4.42 mmol/L vs. 4.30 mmoL/L; HDL 0.99 mmol/L vs. 1.18 mmol/L). No difference in average LDL levels was found. TG, TC and LDL levels were correlated positively with age, but HDL was not. Duration of paraplegia correlated positively with HDL levels, but negatively with LDL. The prevalence of dyslipidemia was 67% , and the prevalence of low HDL was 64%. Conclusions The serum lipid profiles of the young male paraplegics showed a high prevalence of dislipidemia, significantly low HDL levels with a high prevalence of low HDL, and no correlation with age. TG, TC and LDL levels increased with age. The duration of paraplegia was correlated positively with HDL but negatively with LDL, probably due to increased exercise of the upper limbs.
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@#ObjectiveTo investigate the value of serum creatinine(SCr) to monitor the renal function of patients with spinal cord injury(SCI).Methods1298 SCI patients were investigated in Beijing Charity Hospital from January 2004 to May 2009. 249 healthy people were involved as control. The data of SCr were analysed.ResultsThe level of SCr for the SCI patients was (56.81±14.33) μmol/L with normal distribution, 95% CI was 28.73～84.89 μmol/L; The level of SCr for the healthy people was (75.98±11.34) μmol/L, 95% CI was 57.36～101.80 μmol/L. The level of SCr was significantly lower in the SCI patients comparing to the healthy people (P<0.01). Among the SCI patients, the level of SCr was (59.59±13.76) μmol/L for male while (46.41±11.31) μmol/L for female(P<0.05). There was no difference in level of SCr among different ages of the SCI patients(P>0.05). The characteristics were likely in the two groups. There was no difference in level of SCr between paraplegic (55.54±14.96) μmol/L and quadriplegic (57.67±13.83) μmol/L (P>0.05).ConclusionThe characteristics of level of SCr were likely in SCI patients and healthy people with normal distribution. The level of SCr was lower in SCI patients comparing to healthy people, which was higher for male SCI patients comparing to female SCI patients.
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@#ObjectiveTo explore the arrhythmia happened in patients with cervical spinal cord injury (CSCI). Methods61 patients with CSCI were retrospectively analyzed. ResultsThe overall incidence of sinus bradycardia was 26.2%, which was higher in the cases within 3 months (52.4%) than over (12.5%); and was higher in cases injured the cord above C5（46.2%）than lower (C6-8,11.4%). ConclusionThe risk of arrhythmia is still high in chronic phase, which still need to monitor.
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@#ObjectiveTo investigate the relationship between high-sensitivity C reactive protein （hs-CRP） and oxygen uptake efficiency slope (OUES) in patents with cardiovascular disease. MethodsExercise tests, following a symptom-limited standard Bruce protocol with simultaneous respiratory gas-exchange measurements, were performed on a treadmill in 17 post-PCI patients, 21 stable angina pectoris and 24 patients with essential hypertension (EH). The oxygen uptake (VO2), minute ventilation (VE) were determined. The OUES was derived from the relation between VO2 (ml/min) and VE (L/min) during incremental exercise and was determined by VO2=a×lgVE+b, where a = OUES. The OUES was calculated from data of the first 75% (OUES75) and 100% (OUES100) of exercise duration. The serum hs-CRP was measured by immunoassays, and the left ventricular ejection fraction (LVEF) was measured with echocardiography. ResultsOUES75 （r=-0.506,P＜0.001）, OUES100 （r=-0.567,P＜0.001） and LVEF （r=-0.286,P＜0.01） were correlated with lg(hs-CRP). In stepwise multivariable linear regression models, lg(hs-CRP) （β=-0.374，P=0.006）, body height （β=-1.854，P=0.036）, body weight （β=-5.033，P=0.034）were independent risk factors of lower OUES75. lg(hs-CRP) （β=-0.396，P=0.003）, body height （β=-2.157，P=0.013）, body weight （β=-5.912，P=0.011） were independent risk factors of lower OUES100. ConclusionThe serum leveles of hs-CRP may be the useful marker that reflecting cardiopulmonary functional reserve and left ventricular function.
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@#Objective To investigate the relationship between objectively determined daily physical activities and blood pressure levels in Chinese adults. Methods 125 individuals who participated in routine physical examinations of health were investigated, include systolic pressure, diastolic pressure, pulse pressure, and daily walking steps determined by pedometer. Results The daily walking steps correlated negatively with systolic pressure（Male r=－0.613, P＜0.01; Female r=－0.430, P＜0.01） and diastolic pressure (male r=－0.686, P＜0.01; female r=－0.388,P＜0.01). Daily walking steps of normotensive, pre-hypertensive, and hypertensive groups were (18249±6066) step/d, (10395±3788) step/d, (6232±3967) step/d for males, and (12564±6927) step/d, (11458±5084) step/d, (6153±3569) step/d for females respectively （P＜0.05）. Conclusion The daily physical activity determined by walking steps correlated negatively with blood pressure in Chinese adults. Hypertensives often live in low active or sedentary lifestyle. Active lifestyle （≥10000 step/d） may help keep normal blood pressure for Chinese adults.
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@#Objective To investigate the relationship between daily walking-steps and serum lipids.Methods 120 individuals who participated in routine physical examinations of health were investigated, objective measurements included triacylglycerol (TG), total cholesterol (TC), low density lipoprotein (LDL) and high density lipoprotein (HDL), and daily walking-steps were determined by pedometer.Results The daily walking-steps were correlated negatively to TG ( r=-0.351, P＜0.01), and positively to HDL ( r=0.284, P＜0.05) for male after adjustment for age.Conclusion Daily walking-steps determined by pedometer are correlated negatively to TG levels, and positively to HDL levels for male. No correlations are found between daily walking-steps and levels of TC, LDL for male. No correlations are found between daily walking-steps and serum lipids for female.
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@# Objective To investigate the relationship between daily physical activities determined by walking-steps and the obesity indices including body weight，Body Mass Index (BMI)，waist and hip circumference and their ratio in adults. Methods 125 individuals who participated in routine physical examinations of health were measured with body weight, BMI, waist and hip circumference/ratio, daily physical activities determined by walking steps. Results For males, daily physical activities correlated negatively with body weight （r=-0.397，P＜0.01）, BMI （r=-0.499，P＜0.01）, waist circumference （r=-0.490, P＜0.01） and the ratio of waist vs. hip circumference （r=-0.478，P＜0.01）, whereas body weight（r=-0.342，P＜0.01）, BMI （r=-0.249，P＜0.05）, and hip circumference （r=-0.303，P＜0.05） for females. Daily walking-steps were significantly different among the groups of normal weight (11491±6100) steps/d, overweight (9314±5722) steps/d, and obesity (6141±2985) steps/d (P＜0.01). Conclusion Daily physical activities determined by walking steps correlated significantly with obesity indices.
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@#Objective To observe the protective effect of spironolactone on heart of hypertensive SD rats.Methods 30 male SD rats were randomly divided into the control group,hypertensive group(HS group),low spironolactone dose group(HSL group)and high spironolactone dose group(HSH group).The animals except the control group were treated with L-NAME 50 mg/kg/d.Then the animals of the HS group were fed with 1% sodium chloride water solution.Those of the HSL and HSH groups were treated same but the former added with spironolactone 20 mg/kg/d,the later added with spironolactone 100 mg/kg/d.8 weeks late,the animals were killed and hearts were taken out to observe following items:myocardial cross-sectional area,ratio of per-arteriolar fibrous area/arteriolar luminal area of arterioles,ratio of collagen area/total myocardial area,myocardial necrosis and inflammation.Results The myocardial cross-sectional areas in the HS group were significantly more than those in other 3 groups(P<0.01).Collagen ratios of the HS group were significantly higher than others(P<0.01).The ratios of arteriolar wall area versus luminal area in the HS group were significantly higher than those of control and HSH groups(P<0.01).Myocardial injuries in the HS group were more severe than those of other 3 groups.There were no differences between HSL and HSH groups.Conclusion Spironolactone has protective effect on heart of hypertensive SD rats.
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@#Exercise of walking which is regarded as a popular aerobic exercise,is receiving increasing attention in recent years,especially for primary and secondary prevention of cardiovascular diseases.But the guidelines and recommendations are based on low evidence levels,lack enough evidence-based support,and cannot provide individual exercise prescription for more specific populations and specific indications.Thus we put forward the concept of quantitative walking exercise,and hope further studies on relationship between walking exercise and chronic diseases so as to develop appropriate exercise prescriptions for prevention and rehabilitation of chronic diseases.