短期铁缺乏对大鼠甲状腺功能的影响

目的 研究短期铁缺乏对大鼠甲状腺功能的影响,并探讨其机制,为碘缺乏病的防治工作提供新的线索和思路.方法 选择健康SPF/VAF级初断乳SD雄性大鼠22只,按体质量随机分为对照组(饲料含铁量为65 mg/kg)和铁缺乏组(饲料含铁量为15 mg/kg),每组11只.喂养4周后,测定大鼠体质量和甲状腺质量,并计算甲状腺相对质量.取大鼠全血并分离血清,采用生化法检测血红蛋白、血清铁水平和总铁结合力;化学发光法检测血清游离三碘甲腺原氨酸(FT3)、游离甲状腺素(FT4)和促甲状腺激素(TSH)水平.甲状腺常规固定包埋切片后,免疫组化染色观察甲状腺过氧化物酶(TPO)蛋白表达情况.结果 铁缺乏组大鼠体质量[(214.3±18.1)g]比对照组[(243.8±16.4)g]减轻(t=4.002,P＜0.01),甲状腺绝对质量[(11.9±1.6)mg]比对照组[(13.4±1.3)mg]降低(t=2.369,P＜0.01),但甲状腺相对质量[(0.055±0.004)g/kg]与对照组[(0.055±0.006)g/kg]比较未见明显变化(t=0.162,P＞0.05).铁缺乏组大鼠血红蛋白水平[(100.4±8.9)g/L]和血清铁水平[(7.0±0.8)μmol/L]比对照组[(146.5±16.3)g/L、(26.1±5.1)μmol/L]降低(t值分别为8.233、12.277,P均＜0.01),总铁结合力[(124.8±6.3)μmol/L]比对照组[(74.0±4.6)μmol/L]升高(t=21.531,P＜0.01).铁缺乏组大鼠血清FT3、FT4和FT3/FT4[(4.71±0.53)、(29.69±2.63)pmol/L、0.16±0.02]均较对照组[(5.69±0.61)、(31.98±2.49)pmol/L、0.18±0.01]降低(t值分别为4.044、2.096、3.255,P＜0.01或＜0.05).铁缺乏组大鼠TPO蛋白表达强度较对照组减弱.结论 铁缺乏可导致甲状腺功能低下,可能与铁缺乏状态下TPO活性降低有关,碘铁联合补充可能会改善铁缺乏地区碘缺乏病防治的效果.

Abstract：

Objective To explore the effect of short-term iron deficiency on thyroid function of rat and its mechanism, and to provide new clues and ideas for prevention and control of iodine deficiency disorders. Methods Twenty-two healthy SPF/VAF level weaning male SD rats were randomly divided into control group(iron content in diet was 65 mg/kg) and iron deficiency group(iron content in diet was 15 mg/kg) by body weight, and 11 in each group respectively. After 4 weeks feeding, body weight and thyroid glands weight were measured, and the relative weight of thyroid gland was calculated. Rat whole blood was collected and serum was separated. Hemoglobin, serum iron levels and total iron binding capacity were tested using biochemical assay;serum free iodine thyroid three original acid (FT3), free thyroxine (FT4) and thyroid stimulating hormone (TSH) levels were detected by chemiluminescence;after thyroid were fixed in formalin, embedded with paraffin and sectioned regularly, and immunohistochemical stained, the protein expression of thyroid peroxidase(TPO) was observed. Results Compared with control group [(243.8 ± 16.4)g], iron deficiency group of animals had less body weight[(214.3 ± 18.1 )g, t = 4.002, P ＜ 0.01];there was a lower absolute thyroid weight in iron deficiency group[(11.9 ± 1.6)mg]than in control group[(13.4 ±1.3)mg, t = 2.369, P ＜ 0.01], but no significant changes of the relative weight of thyroid gland between the two groups[(0.055 ± 0.004),(0.055 ± 0.006)g/kg, t = 0.162, P ＞ 0.05]. Hemoglobin and serum iron in iron deficiency group were ( 100.4 ± 8.9)g/L and (7.0 ± 0.8)μmol/L, which were less than that in control group[( 146.5 ±16.3)g/L, (26.1 ± 5.1 )μmol/L, t = 8.233,12.277, all P ＜ 0.01]. Total iron binding capacity in control group was (74.0 ± 4.6)μ mol/L and that in iron deficiency group[(124.8 ± 6.3)μmol/L], and the difference was significant (t = 21.531, P＜ 0.01). At the same time, their serum hormones FT3, FT4 and FT3/FT4[(4.71 ± 0.53), (29.69 ±2.63)pmol/L, 0.16 ± 0.02]were lower than that in control group[(5.69 ± 0.61),(31.98 ± 2.49)pmol/L, 0.18 ±0.01, t = 4.044,2.096,3.255, P ＜ 0.01 or ＜ 0.05]. The expression of TPO protein decreased in iron deficiency group than in control group. Conclusions Iron deficiency reduces thyroid function, which perhaps is due to the reduction of TPO activity. Combined supplementation of iodine and iron will possibly improve the prevention effect on iodine deficiency disorder in iron deficiency areas.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

慢性阻塞性肺疾病患者对氧磷酶和氧化应激与全身炎性反应的研究

Objective To analyze the activity of paraoxonase (PON1) and explore the relationship of PON1 and oxidative stress with systemic inflammation response in the acute exacerbation phase and stationary phase in patients with chronic obstructive pulmonary disease (COPD). Methods Serum PON1 activity was measured by phenylacetate in 38 patients with COPD and 30 healthy people. The activity of glutathione peroxidase (GSH-Px) was detected by improved Hafeman method. Total antioxidant capacity (TAC) was measured by eolorimetry and malondialdehyde (MDA) level was measured by thiobarbituric acid colouration method. The interleukin-6 (IL-6) and interleukin-8 (IL-8) levels were detected by radioimmunoassay. The level of C-reactive protein (CRP) was measured by immune turbidimetry. Results In the acute exacerbation phase, the activity of serum PON1 was significantly lower in COPD group than in control group [(98.03±42.40)×103U/L vs. (136.00±60. 50)×103U/L, t=4.962, P<0.01], and it was negatively related to the IL-8 level (r= - 0. 589, P<0.01) and positively related to FEV1% (r= 0. 434, P<0. 05). The activity of GSH-Px was negatively related to the IL-6 level (r=-0. 362, P< 0. 05). In the stationary phase of COPD group, the activity of serum PON1 had no statistical difference compared with control group[(131.50±53.65))×103U/L vs. (136. 00±60.50)×103U/ L, t=2. 457, P>0. 053, and it was negatively related to the IL-8 level (r=-0. 563, P<0.05). Conclusions Serum PON1 activity is significantly decreased in acute exacerbation phase of COPD group compared with control group and it is positively related to FEV1%. The oxidative stress is closely related to systemic inflammation response in patients with acute exacerbation of COPD.     

老年2型糖尿病患者高密度脂蛋白亚类与氧化应激和颈动脉粥样硬化的相关性

目的 探讨老年2型糖尿病患者血清高密度脂蛋白(HDL)亚类的分布特点及其与氧化应激和颈动脉粥样硬化的相关性.方法 老年2型糖尿病患者56例,男40例、女16例;老年健康对照者41例,男31例、女10例.分别测定血清HDL亚类、血清8-异前列腺素F2α及颈动脉超声.结果 老年2型糖尿病组HDL3(0.51±0.21)mmol/L,较健康对照组(0.59±0.15)mmol/L降低(t=1.991,P＜0.05),HDL及HDL2亦较健康对照组降低,分别为(1.07±0.36)mmol/L对(1.18±0.32)mmol/L和(0.56±0.25)mmol/L对(0.64±0.33)mmol/L,但差异无统计学意义(t值分别为1.611和0.614,均为P＞0.05);HDL3与HbA1c负相关(r=-0.503,P=0.005);血清8-异前列腺素F2α吸光度A值较健康对照组降低,分别为0.017±0.004和0.021±0.008(t=2.245,P＜0.05);颈动脉平均内膜-中层厚度(IMT)较健康对照组升高,但差异无统计学意义;颈动脉斑块检出率63.3%,高于对照组的36.0%(x2=4.076,P＜0.05).结论 老年2型糖尿病患者HDL亚类水平存在异常,小颗粒的HDL3水平下降,氧化应激增加,可能是导致其动脉粥样硬化的原因之一.     

视神经脊髓炎血清尿酸水平与临床相关性研究

目的 研究急性期视神经脊髓炎患者血清尿酸水平和临床特点的关系.方法 尿酸酶-过氧化物酶耦联法检测65例视神经脊髓炎患者与对照组76例多发性硬化,126例脑血管病,130例健康者的血清尿酸水平.视神经脊髓炎组采用扩展残疾状态量表评价疾病严重程度,行核磁并强化评估受累病灶,细胞免疫荧光法检测水通道蛋白(AQ)P4抗体.分析尿酸与病程、疾病轻重、受累病灶、AQP4等临床特点的相关性.结果 男性视神经脊髓炎组尿酸[(298.90±74.14)μmol/L]显著低于脑血管病组[(355.37±50.30)μ.mol/L]和对照组[(340.33±58.23)μmol/L,P＜0.05],与多发性硬化组[(292.36±92.95)μmol/L]差异无统计学意义.女性视神经脊髓炎组尿酸[(198.21±62.62)μmol/L]显著低于脑血管病组[(274.51±70.66)μmol/L]和对照组[(243.26±60.65)μmol/L,P＜0.05],与多发性硬化组[(232.29±71.95)μmol/L]差异无统计学意义.视神经脊髓炎组尿酸在男性[(298.90 ±74.14)μmol/L]与女性[(198.21±62.62)μmol/L]、扩展残疾状态量表评分＞5分[(195.48±83.70)μmol/L]与＜5分[(241.00±63.20)μmol/L]的患者相比差异有统计学意义(P＜0.05),与病程、脊髓受累节段、病灶强化,AQP4阳性无关(P＞0.05).结论 急性期视神经脊髓炎患者血清尿酸降低,并且与疾病严重程度有关.     

腹部内脏脂肪沉积的老年非代谢综合征患者脂联素瘦素比值的变化

目的 观察体质指数正常、腹部内脏脂肪沉积的非代谢综合征老年男性患者血清脂联素、瘦素水平及脂联素瘦素比值的变化.方法 将入选的老年非代谢综合征男性患者109例分为2组,内脏无脂肪沉积组67例,内脏脂肪沉积组42例.采用CT方法测定内脏脂肪面积,当腹部内脏脂肪面积≥100cm2,为内脏脂肪沉积;采用LINCO公司提供的放射免疫试剂盒测定空腹血脂联素、瘦素水平;代谢综合征的诊断采用2004年中国糖尿病学会制定的标准.结果 (1)脂肪沉积组与无脂肪沉积组比较,体质指数、内脏脂肪面积均显著升高,体质指数分别为(22.94±1.35)kg/m2对(21.38±2.55)kg/m2(P＜O.001),内脏脂肪面积(135.6±31.7)cm2对(68.6±22.6)cm2(P＜O.001);脂联素瘦素比值降低.分别为2.17±1.77对4.54±7.00(P=0.031);而脂联素、瘦素水平在两者间差异无统计学意义;(2)脂联素瘦素比值与体质指数(r=-0.552,P＜0.001)、腰围(r=-0.390,P＜0.001)、腹部内脏脂肪面积(r=-0.311,P＜0.001)呈负相关.结论 体质指数正常有内脏脂肪沉积与无内脏脂肪沉积的老年男性比较.脂联素瘦素比值明显下降.并与腹部脂肪面积显著负相关.提示血清脂联素瘦素比值可能可用于筛选体质指数正常有腹部内脏脂肪肪沉积的患者.     

血尿酸水平与帕金森病的相关性分析

目的 探讨血尿酸（UA）和帕金森病（PD）之间的关系.方法 收集116例PD组以及116例健康对照组的临床资料,分别应用简易智能精神状态量表（MMSE）及汉密尔顿抑郁量表（HAMD）评定其认知功能和抑郁程度.根据修订的Hoehn-Yahr （H-Y）分期将患者分为轻、中、重3组.对所有研究对象进行血尿酸水平的检测.结果 PD组患者的血尿酸水平明显低于健康对照组（P＜0.01）.PD组中有认知障碍及伴有抑郁者的血尿酸水平明显低于无认知障碍及不伴有抑郁者（P＜0.01）,轻、中、重3组患者间的血尿酸水平比较差异无统计学意义（P＞0.05）.MMSE评分与患者的血尿酸水平呈正相关,HAMD评分与患者的血尿酸水平呈负相关（P＜0.01）.结论 PD患者的血尿酸水平低于健康人群,并且与认知功能及抑郁密切相关.     

老年高血压患者动态脉压与血尿酸和超敏C反应蛋白的关系

目的探讨老年原发性高血压(EH)患者动态脉压(APP)与血尿酸(UA)、超敏C反应蛋白(hsCRP)水平的关系。方法入选112例老年EH患者,根据24 h动态血压监测结果计算APP,按照APP水平分为:30 mmHg≤APP60 mmHg组(PP1组)52例和APP≥60 mmHg组(PP2组)60例。分别测定2组的血清UA、hsCRP水平及相关临床生化指标,并进行比较。结果 PP2组的24 h平均收缩压(24hMSBP)显著高于PP1组(P0.05),24 h平均舒张压(24hMDBP)显著低于PP1组(P0.05);与PP1组相比,PP2组的血UA、hs-CRP水平显著升高,分别为(371.63±86.85)μmol/L和(311.25±74.36)μmol/L(P0.05)、(4.19±1.85)mg/L和(2.23±1.53)mg/L(P0.01)。相关性分析显示血UA、hs-CRP水平与APP均显著相关(P0.05或P0.01)。结论血UA、hs-CRP水平与APP关系密切,可能参与了老年EH患者脉压升高的病理生理过程。     

血清总胆红素水平与急性缺血性卒中患者梗死灶体积、严重程度和病因学分型的相关性

目的 探讨血清总胆红素水平与急性缺血性卒中患者梗死灶体积、卒中严重程度和病因学分型的相关性.方法 以2012年1月至2014年1月期间收治的急性缺血性卒中患者作为研究对象,收集其临床和影像学资料,并检测血清总胆红素水平,分析血清总胆红素水平与缺血性卒中患者梗死灶体积、卒中严重程度和病因学分型的相关性.结果 共纳入290例急性缺血性卒中患者.根据脑梗死体积中位数将患者分为大梗死组(≥1.8 cm3;n=145)和小梗死组(＜1.8 cm3;n=145).大梗死组总胆红素水平显著高于小梗死组[(16.896±7.761) μmol/L对(13.039±4.477) μmol/L;=5.185,P＜0.001],多变量logistic回归分析显示,总胆红素最高四分位数组(＞17.893 μmol/L)为大梗死的独立危险因素[优势比(odds ratio,OR)2.754,95％可信区间(confidence interval,CI)1.028～7.375;P =0.044].根据美国国立卫生研究院卒中量表(National Institutes of Health Stroke Scale,NIHSS)评分将患者分为轻度卒中组(NIHSS评分＜8分;n=210)和中重度卒中组(NIHSS评分≥8分;n=80),中重度卒中组的总胆红素水平显著高于轻度卒中组[(16.861±7.689) μmol/L对(14.246±6.019)μmol/L;=3.052,P=0.002],多变量logistic回归分析显示,总胆红素水平并非中重度卒中的独立危险因素.将小动脉闭塞性卒中、大动脉粥样硬化性卒中和其他明确病因的卒中合并为非心源性脑栓塞组(n =244),心源性脑栓塞组(n=46)总胆红素水平显著高于非心源性脑栓塞组[(19.639±8.409) μmol/L对(14.087±5.831) μmol/L;t =5.479,P＜0.001],多变量logistic回归分析显示,总胆红素最高四分位数组(＞ 17.893 μmol/L)为心源性脑栓塞的独立危险因素(OR 8.405,95％ CI 1.719 ～41.106;P=0.009).结论 血清总胆红素水平升高是大梗死卒中和心源性脑栓塞的独立危险因素.急性期血清总胆红素作为一种氧化应激指标,可为早期判断缺血性卒中患者的梗死灶体积和病因学亚型提供帮助.     

甲状腺功能亢进症患者血清抵抗素水平与血糖、血脂及甲状腺激素的关系

目的 探讨甲状腺功能亢进症（简称甲亢）患者血清抵抗素水平与血糖、血脂、甲状腺激素(TH)的关系。方法 甲亢组50例,来源于2008、2009年就诊于哈医大二院内分泌科患者,均为新确诊尚未服药病例;以同时间到医院体检的40例健康者为对照组,两组均排除糖尿病、肥胖、高血压、高血脂。ELISA法测定血清抵抗素水平;化学发光法测定空腹胰岛素、游离三碘甲状腺原氨酸（FT3）、游离甲状腺素(FT4)、促甲状腺激素(TSH);葡萄糖氧化酶-过氧化物酶(GOD-PAP)法测定空腹血糖;胆固醇氧化酶法测定总胆固醇(T-CH);磷酸甘油氧化酶(GPO)法测定甘油三酯(TG);均相酶比色法测定高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)。同时测定身高、体重、腰围、臀围,计算体重指数(BMI)、胰岛素抵抗指数(HOMA-IR)。组间比较采用t检验,相关分析采用Pearson相关检验,用多元逐步回归方法比较抵抗素与血糖、血脂、TH的关系。结果 甲亢组血糖[(5.2±0.7)mmol/L]、抵抗素[(132.1±41.3)μg/L]、FT3[(19.8±8.7) pmol/L]、FT4[(54.1±29.6)pmol/L]、胰岛素[(7.9±2.8)mU/L]、胰岛素抵抗指数[(2.3±1.0)]明显高于对照组[(4.7±0.5)mmol/L,(65.1±5.9)μg/L、(4.1±0.6)pmol/L、( 14.3±2.2)pmol/L、(6.4±2.7)mU/L、(1.5±1.2);t值分别为4.64、10.17、11.42、8.49、4.48、9.42,P＜ 0.01或＜0.05]。甲亢组T-CH[(3.7±0.8)mol/L]、LDL-C[( 1.8±0.6)mol/L]、TSH[(0.01±0.01 )mU/L]明显低于对照组[(4.6±0.7) mol/L、(2.3±0.7)mol/L、( 1.80±0.90)mU/L;t值分别为5.30、3.33、14.48,P均＜0.01）]。相关分析显示,甲亢组抵抗素与FT3、FT4、HOMA-IR呈正相关(r=0.719、0.790、0.396,P＜0.01或＜0.05),与T-CH、LDL负相关(r=-0.364、- 0.519,P＜0.05或＜0.01)。多元逐步回归显示,甲亢组抵抗素与FT3、FT4、HOMA-IR正相关（r=0.756,P均＜0.01）。结论 抵抗素水平的调节受甲状腺激素影响,甲亢患者血抵抗素可能与胰岛素抵抗及糖脂代谢紊乱有关。     

血清同型半胱氨酸与老年脑出血并发抑郁患者认知功能的相关性研究

目的探讨血清同型半胱氨酸(Hcy)与老年脑出血并发抑郁患者认知功能的相关性。方法选取老年高血压性基底节区脑出血患者336例,根据入院后21d是否合并抑郁分为观察组和对照组,每组168例。比较2组简易智能状态检查量表(MMSE)评分、事件相关电位检测指标、Hcy水平和高Hcy血症发生率,采用Pearson相关分析Hcy水平与MMSE评分的相关性。结果观察组记忆力、注意计算力、定向力、语言能力、MMSE评分及P3波幅明显低于对照组,N2潜伏期和P3潜伏期明显高于对照组,差异有统计学意义(P<0.05,P<0.01)。观察组Hcy水平和高Hcy血症发生率明显高于对照组,差异有统计学意义[(23.90±4.60)μmol/L vs (16.70±3.16)μmol/L,P=0.030;42.26%vs 20.24%,P=0.037]。脑出血并发抑郁患者Hcy水平与MMSE评分呈负相关(r=-0.675,P<0.05)。结论老年高血压性基底节区脑出血并发抑郁患者存在不同程度的认知障碍,且Hcy水平升高,高Hcy血症发生率较高,Hcy水平升高与其认知功能障碍相关。     

血尿酸与冠心病程度及心血管事件的相关性

目的：探讨血尿酸（UA）水平与冠心病（CHD）病变严重程度及与心血管事件的相关性。方法：回顾性分析于我院行冠脉造影403例患者的临床资料,其中308例CHD患者[稳定型心绞痛（SAP ,137例）、急性冠脉综合征（ACS ,171例）],95例非CHD患者（正常对照组）,比较各组间UA水平的差异,并进一步分析其与冠脉病变严重程度的相关性。再根据UA水平CHD患者被分为低尿酸组（147例）和高尿酸组（161例）,经12个月随访,比较两组随访期间主要不良心血管事件（MACE）的发生率。结果：ACS组血 UA水平显著高于正常对照组[（318.44±69.07）μmol/L比（295.38±80.08）μmol/L ,P＝0.003];随着冠脉病变支数的增加及冠脉病变程度的加重（Gensini评分增高）,血UA水平呈显著升高趋势[单支（316.58±95.27）μmol/L比双支（335.26±43.26）μmol/L比多支（346.53±86.74）μmol/L ;低分组（312.42±48.26）μmol/L比中分组（346.58±47.36）μmol/L比高分组（363.84±54.68）μmol/L , P＜0.05或＜0.01], Pearson相关分析显示,血UA水平与Gensini评分呈正相关（r＝0.583, P＜0.05）;高尿酸组MACE发生率明显高于低尿酸组（58.38％比36.24％, P＝0.012）。结论：血尿酸水平与冠心病严重程度呈正相关,可能为冠心病独立危险因素。     

老年人血镁水平降低与血糖代谢异常的关系

目的 探讨老年人血镁水平降低与血糖代谢异常的关系.方法 收集我院门诊126例老年人的查体资料,其中2型糖尿病患者50例,糖调节异常者35例,血糖正常者41例,对3组老年人临床资料进行比较分析.结果 (1)3组的年龄、体质指数、血脂水平差异均无统计学意义,糖尿病组和糖调节异常组血清镁明显低于血糖正常组,分别为(0.75±0.11)mmol/L和(0.78±0.12)mmol/L对(0.84±0.1)mmol/L,差异有统计学意义(P＜0.01、＜0.05);(2)低血镁发病率在2型糖尿病和糖调节异常组明显高于血糖正常组,分别为24.0%和28.6%对7.3%(均为P＜0.01);(3)相关分析结果显示,血镁水平与空腹血糖及糖化血红蛋白水平呈明显负相关(r=-0.343、-0.271,均为P＜0.01),与年龄及体质指数无相关.结论 老年人血清镁水平降低与血糖代谢异常有关.

Abstract：

Objective To explore the relationship between serum magnesium (Mg) levels and glucose metabolism disorders in the elderly.Methods The data of health examination of 126 elderly people were collected in our hospital.There were 50 patients with type 2 diabetes,35 patients with impaired glucose regulation (IGR) and 41 people with normal glucose.The clinical data of the three groups were compared and analyzed.Results (1)There were no significant differences in age,body mass index (BMI) and blood lipid level among the three groups.The mean serum Mg level was lower in normal glucose group [(0.84±0.1) mmol/L] than in diabetic group [(0.75±0.11) mmol/L,P＜0.01] and IGR group [(0.78±0.12) mmol/L,P＜0.05].(2)The prevalence of hypomagnesemia was higher in diabetic group and IGR group than in normal glucose group (24%,28.6% vs.7.3%,P＜ 0.01 ).(3)The correlation study showed that the serum magnesium level was negatively associated with fasting plasma glucose and HbA1c (r= - 0.343,- 0.271,P＜0.01 ),but not associated with age and BMI.Conclusions The low serum magnesium level is associated with glucose metabolism disorders in the elderly.