Methods:Choose 60 healthy pregnant women as the subjects. After the newborns were delivered after normal periods of gestation,they were divided into relatively high-level lead group >0.483 μmol/L(100μg/L)and low-level lead group <0.483 μmol/L(100μg/L),study the effects of lead exposure during pregnancy on the body development and bone metabolism index of the fetus.
The Y-maze discrimination learning ability and memory keeping percentage in chronic lead exposure group were evidently lower than those of control group; (20 23±5.52) training times and (64.17±9 92%) vs (13 86±1 95) training times and (86 67±5 16)%,respectively(P<0 01,t=2 95 and t=2 98);
The correlation of concentration PbA in the workplace and the renal function of lead exposure workers was shown ( R= 0.894 , P<0.001, R 2 =0.799). The correlation coefficient of skewness of showed that PbA and Bpb. Upb.
Non-occupational lead exposure and hypertension in Pakistani adults
Based on the long historical association and the provocative findings of blood pressure effects at low level of lead exposure a study was carried out to determine if an association existed between low blood lead concentration and hypertension.
Evaluation of the effect of lead exposure on the liver in Egyptian lead tank welders
Chronic, low-level lead exposure causes hypertension in both animals and humans.
In lead workers, the mobilization of bone lead causes an "internal" lead exposure and affects the blood lead level considerably.