低剂量亚慢性砷染毒家兔血清酶和生物化学指标的变化

目的 观察低剂量亚慢性砷染毒家兔在染毒不同时期血清酶和生物化学指标的变化,为筛选有意义的砷中毒早期诊断血液学指标提供依据.方法 成年家兔12只,体质量2.0～3.5kg,按体质量随机分为4组,每组3只,分别饮用含亚砷酸钠0(对照)、0.01、0.05、0.25 mg/L的水.染毒8周和12周后,采用SYSMEX-180型全自动生化分析仪测定各组家兔血清中丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)、碱性磷酸酶(ALP)和γ-谷氨酰基转移酶(γ-GT)的活性以及总蛋白、白蛋白、球蛋白和白蛋白/球蛋白比值(简称白球比).结果 染毒家兔0.05 mg/L剂量组第12周ALT水平(60.00±4.14)U/L]较同期对照组(41.50±2.12)U/L]升高(P＜0.05);0.25 mg/L剂量组第8周、第12周AST水平(46.50±3.21)、(52.33±3.81)U/L]较同期对照组(21.33±3.53)、(29.50±3.23)U/L]升高(P均＜0.05);0.05 mg/L剂量组和0.25 mg/L剂量组第12周ALP水平(78.68±4.85)、(103.00±7.83)U/L]较同期对照组(45.50±5.50)U/L]升高(P均＜0.05);0.05mg/L剂量组第12周γ-GT水平(19.33±7.50)U/L]较同期对照组(8.50±3.53)U/L]升高(P＜0.05).各剂量组第8周和第12周的血清总蛋白、白蛋白、球蛋白水平和白球比与同期对照组比较,差异无统计学意义(F值分别为0.77、0.02、0.16、3.14和0.51、0.29、0.41、0.52,P均＞0.05).结论 0.05 mg/L及以上剂量亚慢性砷染毒主要对肝脏有一定损伤.在肝脏的相关血清酶学中,AST是较为早期的反映砷中毒肝脏损伤的敏感指标.

Abstract：

Objective To observe the sub-chronic effects of low doses of arsenic poisoning in rabbits exposed to different periods on some of the serum enzymes and biochemical indicators, and to provide the basis for screening of meaningful hematologic indicators for early diagnosis of arsenic poisoning. Methods Twelve adult rabbits,weighing 2.0 - 3.5 kg, were randomly divided into four groups, 3 in each group, and they were fed with drinking water containing sodium arsenite 0(control),0.01,0.05,0.25 mg/L, respectively. Serum alanine aminotransferase (ALT), aspartate amino transferase (AST), alkaline phosphatase (ALP), γ-glutamyl transacylase (y-GT), total protein(TP), albumin(ALB), globulin(GLP), and ALB/GLP of rabbit were measured by SYSMEX-180 automated biochemistry analyzer after 8 weeks and 12 weeks exposure. Results The results showed that ALT in 0.05 mg/Lgroup of 12 week(60.00 ± 4.14)U/L]increased significantly compared with the control(41.50 ± 2.12)U/L, P ＜0.05];AST in 0.25 mg/L group of 8 week and 12 week(46.50 ± 3.21 ), (52.33 ± 3.81 )U/L]increased significantly compared with the control(21.33 ± 3.53), (29.50 ± 3.23 )U/L, all P ＜ 0.05];ALP in 0.05 mg/L and 0.25 mg/L group of 12 week (78.68 ± 4.85 ), ( 103.00 ± 7.83 ) U / L]increased significantly compared with the control (45.50 ± 5.50)U/L, all P ＜ 0.05];γ-GT in 0.05 mg/L group of 12 week(19.33 ± 7.50)U/L]increased significantly compared with the contro1(8.50 ± 3.53)U/L, P＜ 0.05]. TP, ALB, GLP, ALB/GLP of different groups of 8 week and 12 week were not significantly different statistically(F= 0.77,0.02,0.16,3.14 and 0.51,0.29,0.41,0.52, all P ＞ 0.05). Conclusions Zero point zero five mg/L and higher doses of sub-chronic arsenic exposure has some major damage to the liver. Compared with other serum enzymes and the biochemical indexes, serum AST is a early sensitive indicator of liver injury of the arsenic poisoning.

The effects of low doses arsenic on serum enzymes and biochemical indicators in rabbits

Objective To observe the sub-chronic effects of low doses of arsenic poisoning in rabbits exposed to different periods on some of the serum enzymes and biochemical indicators, and to provide the basis for screening of meaningful hematologic indicators for early diagnosis of arsenic poisoning. Methods Twelve adult rabbits,weighing 2.0 - 3.5 kg, were randomly divided into four groups, 3 in each group, and they were fed with drinking water containing sodium arsenite 0(control),0.01,0.05,0.25 mg/L, respectively. Serum alanine aminotransferase (ALT), aspartate amino transferase (AST), alkaline phosphatase (ALP), γ-glutamyl transacylase (y-GT), total protein(TP), albumin(ALB), globulin(GLP), and ALB/GLP of rabbit were measured by SYSMEX-180 automated biochemistry analyzer after 8 weeks and 12 weeks exposure. Results The results showed that ALT in 0.05 mg/Lgroup of 12 week(60.00 ± 4.14)U/L]increased significantly compared with the control(41.50 ± 2.12)U/L, P ＜0.05];AST in 0.25 mg/L group of 8 week and 12 week(46.50 ± 3.21 ), (52.33 ± 3.81 )U/L]increased significantly compared with the control(21.33 ± 3.53), (29.50 ± 3.23 )U/L, all P ＜ 0.05];ALP in 0.05 mg/L and 0.25 mg/L group of 12 week (78.68 ± 4.85 ), ( 103.00 ± 7.83 ) U / L]increased significantly compared with the control (45.50 ± 5.50)U/L, all P ＜ 0.05];γ-GT in 0.05 mg/L group of 12 week(19.33 ± 7.50)U/L]increased significantly compared with the contro1(8.50 ± 3.53)U/L, P＜ 0.05]. TP, ALB, GLP, ALB/GLP of different groups of 8 week and 12 week were not significantly different statistically(F= 0.77,0.02,0.16,3.14 and 0.51,0.29,0.41,0.52, all P ＞ 0.05). Conclusions Zero point zero five mg/L and higher doses of sub-chronic arsenic exposure has some major damage to the liver. Compared with other serum enzymes and the biochemical indexes, serum AST is a early sensitive indicator of liver injury of the arsenic poisoning.