16 718

Cited 0 times in

직업성 연중독의 screening test로서 erythrocyte protoporphyrin량과 연중독지수간의 상관에 관한 연구

Authors
 김광종 
Issue Date
1984
Description
보건학과/박사
Abstract
[영문]

[한글]

본 연구의 목적은 연작업자에 있어서 연중독을 早期診斷하고 예방은 물론 연중독 精密

檢診 대상자를 색출하기 위한 生物學的 指標로서 혈중 erythrocyte protoporphyrin(EP)의

有用性을 규명하는데 있다.

연구대상자는 서울지역에 소재한 밧테리제조 근로자 16명, 연용해근로자 92명, 납땜공

68명, 인쇄업근로자 47명등 총 223명의 연작업자와 연작업의 경력이 없었던 건강한 정상

인 남자 109명을 비연작업자로 구분하여 선정하였다.

또한 혈중 erythrocyte protoporphyrin 측정법의 특이성을 검토하기 위하여 연을 취급

치 않은 니켈 및 크롬도금근로자 42명을 대상으로 비교하였다.

연구기간은 1984년 5월 1일부터 9월 30일 까지 5개월간 이었다.

검사방법은 대상자의 혈중 erythrocyte protoporphyrin 량을 측정하였고 연작업자에 있

어서 혈중연량(PbB), 뇨중 delta-aminolevulinic acid(ALAU)량, 뇨중 coproporphyrin(CPU

)량, 혈색소(Hb), 혈구용적(Ht)등을 측정 하였다. 또한 이들이 근무하는 작업장내 공기중

연농도를 측정하였다.

측정한 자료의 분석에서는 우리나라의 건강한 성인남자의 혈중 erythrocyte protoporph

yrin과 연중독 판정에 이용되는 연중독지수인 혈중연량, 뇨중 delta-aminolevulinic acid

량, 뇨중 coproporphyrin량, 혈색소, 혈구용적등과 상호관계를 일차회귀분석 및 단계적

다변수 회귀분석을 실시 하였다.

연구의 결과를 요약하면 다음과 같다.

1. 비연작업자인 건강한 성인남자의 혈중 erythrocyte protoporphyrin량의 分布는 對數

正規分布하는 양상을 보였고 算術平均 및 표준편차는 35.1±10.8㎍/㎗ (기하평균=33.6㎍/

㎗)이었다.

2. 연작업자의 평균 혈중 erythrocyte protoporphyrin량은 84.6±52.3㎍/㎗ (기하평균=

71.1㎍/㎗)로서 비연작업자에 비하여 현저하게 높았다.

또한 니켈 및 크롬도금근로자의 혈중 erythrocyte protoporphyrin량의 平均値는 33.1±

13.2㎍/㎗로서 연작업자에 비해 현저하게 낮았고 비연작업자와 근사치를 나타냈다.

3. 공기중 연농도가 높은 부서의 근로자에서 혈중 erythrocyte protoporphyrin량은 저

농도부서의 근로자보다 높았고 혈중 erythrocyte protoporphyrin량과 각 중독지수간과의

상관계수도 역시 고농도부서의 근로자에서 높게 나타났다.

4. 연작업자의 혈중 erythrocyte protoporphyrin과 가장 높은 相關을 보인 변수는 혈중

연량(r=0.64)이었으며 혈중 erythrocyte protoporphyrin량을 예측하는데 혈중연량의 한

독립변수만 가지고도 40.6%(R**2 = 0.406)를 설명 할 수 있어 혈중연량은 가장 좋은 예측

변수 이었다.

5. 연작업자에 있어 혈중 erythrocyte protoporphyrin량과 혈중연량과의 量一反應관계

는 血中鉛量 30∼35㎍/㎗에서 혈중 erythrocyte protoporphyrin은 증가하기 시작 하였으

며 뇨중 delta-aminolevulinic acid량과 뇨중 protoporphyrin 량은 혈중연량 45∼50㎍/㎗

에서 증가하기 시작 하였다.

위의 결과로부터 연작업자의 혈중 erythrocyte protoporphyrin 측정은 연중독을 조기진

단하고 평가 할 수 있는 生物學的指標로서 有用하다고 생각되며 연중독에 대한 혈중 eryt

hrocyte protoporphyrin의 screening level을 100∼120㎍/㎗로 적용함이 적당할 것으로

판단되었다.





A Study on Relationship between Lead Poinsoning and Erythrocyte Protoporphyrin

Level as a Screening Test for Lead Workers in Korea



Kim, Kwang-Chong

Department of Public Health The Graduate School of Yonsei University

(Directed by Prof. Kwon, Sook Pyo, Ph.D.)



Aiming to determine an availability of the erythrocyte protoporphyrin level as a

biological parameter for early diagnosis and detection in the precision physical

examination for lead poisoning in lead workers, the following study was carried out

during May 1st through Sep. 30, 1984. The determination of erythrocyte

protoporphyrin level, blood lead, urine deltaaminolevulinic acid, urine

coproporphyrin, hemoglobin, hamatocrit in lead workers were examined for 16 battery

workers, 92 lead smelters, 68 lead solders, 47 printing workers.

Supplementary, the determination of erythrocyte photoporphyrin level was examined

for 109 health male adults and 42 Ni & Cr plating workers who had not occupational

exposed to lead and its compounds.

Lead concentration in working environment was also measured for finding out lead

and its compounds.

The distribution of erythrocyte protoporphyrin level in healthy male adults was

analysed with log-normal probability paper test for setting of normal values in the

screening test. The obtained data from the lead workers was examined by simple

regression analysis and stepwise multiple regression analysis in order to finding

out the relationship between erythrocyte protoporphyrin level and blood lead, urine

delta-aminolevulinic acid, urine coproporphyrin, hemoglobin, hematocrit.

The results were obtained as follows:

1. In healthy male adults who had not occupational exposed to lead, the

distribution of erythrocyte protoporphyrin level showed to be log normal.

Arithmatic mean and standard deviation was 35.1 10.8 ㎍/㎗ with geometric mean

33.6 ㎍/㎗.

2. When values of erythrocyte protoporphyrin level showed 84.6 52.3 ㎍/㎗ in

lead workers which was significantly hipher than the healthy male adults on one

hand and on the other, mean values of erythrocyte protoporphyrin level showed 33.1



13.2 ㎍/㎗ in Ni & Cr plating workers which was significantly lower than the lead

worriers.

3. It was shown in the study that the higher lead concentration of working

environment, the higher the erythrocyte protoporphyrin level of lead workers, and

also the higher correlation coefficients between erythrocyte protoporphyrin and

blood lead, urine delta aminolevulinic acid, urine coproporphyrin, hemoglobin and

hematocrit.

4. The correlation coefficient between erythrocyte protoporphyrin and blood lead

showed r = 0.64, therefore with blood lead only as an independent variable (blood

lead), erythrocyte protoporphyrin level may be easily predicted as the predicted

variable.

5. In dose-effect relationship between blood lead and erythrocyte protoporphyrin,

urine delta-aminolevulinic acid, urine coproporphyrin for lead workers, the value

of erythrocyte protoporphyrin began to increase at 30 to 35 ㎍/㎗ of blood lead.

Compared with erythrocyte protoporphyrin, delayed onset of increase in urine

deltaaminolevulinic acid and urine coproporphyrin were observed.

In short, it was recommended that the measurement of erythrocyte protoporphyrin

was available as a biological indicator of screening test for detection of early

effect of lead and its compounds in lead workers, and it was also suggested that

the screening level of erythrocyte protoporphyrin between 100 and 120 ㎍/㎗ was

able to apply in detection for lead posioning.
Files in This Item:
제한공개 원문입니다.
Appears in Collections:
1. College of Medicine (의과대학) > Others (기타) > 3. Dissertation
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/135566
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links