Abstract |
Studies on dose-effect relationships between blood lead (PbB) and free erythrocyte protoporphyrin ( FEP) or zinc protoporphyrin (ZPP) in 583 workers (male 326, female 257) was conducted. Good dose-effect relationships and S-shaped curves between PbB and logFEP, logZPP or log (ZPP/Hb) were established. Sectioned linear regression showed that linear correlation was obtained while PbB between 0.48 (10 micrograms/dl) and 3.36 mumol/L (70 micrograms/dl) (male) or 0.48 (10 micrograms/dl) and 2.88 mumol/L (60 micrograms/dl) (female). However, while PbB below 0.48 mumol/L (10 micrograms/dl), there was no linear correlation. The increasing of FEP, ZPP slowed down remarkably as PbB were beyond 3.36 mumol/L (70 micrograms/dl) (male) or 2.88 mumol/L (60 micrograms/dl) (female). Therefore, the degree of lead poisoning can't be classified by the values of FEP, ZPP among plumbism.
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Authors | G L Sun |
Journal | Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]
(Zhonghua Yu Fang Yi Xue Za Zhi)
Vol. 23
Issue 5
Pg. 279-82
(Sep 1989)
ISSN: 0253-9624 [Print] China |
PMID | 2625062
(Publication Type: English Abstract, Journal Article)
|
Chemical References |
- Porphyrins
- Protoporphyrins
- zinc protoporphyrin
- Lead
|
Topics |
- Dose-Response Relationship, Drug
- Erythrocytes
(analysis)
- Female
- Humans
- Lead
(blood)
- Lead Poisoning
(blood)
- Male
- Occupational Diseases
(blood)
- Porphyrins
(blood)
- Protoporphyrins
(blood)
- Severity of Illness Index
|