克山病病区和大骨节病病区人群与非病区人群血中微量元素对比研究

本文对克山病和大骨节病病区人群与非病区人群血中１９种微量元素进行了对比研究。结果表明：两种病区与非病区人群比较，除硒非常显著低于非病区人群外，未发现其他元素显著高于非病区。含量低的元素在不同情况下的组合无一致的模式。病区内群比较，克山病不同于大骨节病区人群之间的比较情况更为复杂，这些现象的内涵目前难以肯定。     

陕西省克山病病区粮食和人群硒水平调查

目的了解陕西省克山病病区粮食和人群硒水平。方法按整群分层抽样的方法,于2006-2007年,在陕西省克山病区范围内抽取6个病区县（区）的12个自然村作为调查点,采集调查点居民户自产主食粮食小麦和玉米515份,克山病患者和病区健康人发样307份、全血248份及非病区健康人血样64份,用2,3-二氨基萘荧光法、原子荧光法和化学比色法分别测定粮食、发硒、全血硒含量和谷胱甘肽过氧化物酶（GSH-Px）活力。结果病区居民粮食（小麦、玉米）硒含量为（0.045±0.036）和（0.035±0.025）mg/kg,克山病患者发硒含量（0.376±0.091）mg/kg低于病区健康人（0.384±0.077）mg/kg,差异无统计学意义（P〉0.05）;克山病患者全血硒含量（0.071±0.017）mg/L低于病区健康人（0.077±0.017）mg/L,差异有统计学意义（P〈0.05）,病区健康人明显低于非病区健康人（0.090±0.016）mg/L,差异有统计学意义（P〈0.01）;克山病患者GSH-Px（75.16±12.10）U/L低于病区健康人（85.70±14.66）U/L,差异有统计学意义（P〈0.05）。结论病区粮食和人群硒水平明显升高,与生活水平的提高和膳食结构的明显改善有关。     

克山病、大骨节病病区小麦不饱和脂肪酸及硒含量的测定

本文分析了克山病、大骨节病区小麦不饱和脂肪酸及硒水平,结果表明两种病病区小麦在硒低的同时,多不饱和脂肪酸含量都明显高于非病区,多不饱和脂肪酸与硒含量之间呈负相关。并讨论了多不饱和脂肪酸相对过负荷在此两种病发病过程中的意义。     

大骨节病和克山病老病区粮食中T-2毒素和黄绿青霉素污染状况调查

目的观察大骨节病与克山病老病区丰田村和林茂村地产粮食中T鄄2毒素和黄绿青霉素(CIT)的污染状况。方法选40岁以上自愿者作右手X线拍片检查,评估大骨节病历史患病情况;收集文献数据评估克山病历史病情;用ELISA法和高效液相色谱(HPLC)法检测病区地产粮食T鄄2毒素和CIT。结果丰田村和林茂村成人大骨节病患病率很高,是历史上的严重病区。地产面粉中T鄄2毒素阳性检出率为77.78%,T鄄2毒素平均水平为120.64 μg/kg;地产玉米面中CIT阳性检出率为42.31%,CIT毒素平均水平为12.33 μg/kg,均明显地高出本省市场同类粮食。结论丰田村和林茂村是大骨节病、克山病历史上的严重病区,地产粮食中T鄄2毒素、CIT 水平仍然相当高,如果不是当地粮食占居民主食中的比例已经很小(< 20%),这两种病的当前检出率也许达不到现在程度的低水平。     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

目的 探讨克山病病区玉米及酱块与大鼠心肌损伤的关系.方法 将雄性Wistar大鼠按体质量随机分为3组,分别饲以病区玉米、病区玉米+酱块、非病区玉米,1、3个月时检测大鼠尾静脉全血谷胱甘肽过氧化物酶(GSH-Px)活力,6个月时光镜下观察大鼠心肌病理改变.结果 1、3个月时3组大鼠全血GSH-Px活力比较,差异有统计学意义(F=23.60、72.46,P均<0.01),其中病区玉米组[(181.58±22.15)、(44.76±28.59)U/L]和病区玉米+酱块组[(195.03±17.66)、(30.38±3.35)U/L]明显低于非病区玉米组[(340.90±95.42)、(125.17±13.64)U/L,P均<0.01],而病区玉米组与病区玉米+酱块组比较,未见明显改变(P>0.05).光镜下3组大鼠心肌损伤病理改变发生率分别为3/9、1/9、2/7,组间比较差异无统计学意义(P>0.05).结论 单纯克山病病区玉米饲养可引起大鼠心肌损伤病理性改变,酱块无加重心肌损伤作用.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.