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Relationships between osmotic fragility of red blood cells and various hematologic data in workers exposed to lead

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Summary

This paper describes relationships between osmotic fragility (OF) of red blood cells and various hematologic data in 32 male workers exposed to lead and 30 controls. The examination included measurements of OF determined by the coil planet centrifuge system, red blood cell (RBC) count, hematocrit, hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), water of RBC, sodium and potassium of RBC, blood and urine lead, urine coproporphyrin, and urine δ-aminolevulinic acid. The results were:

  1. 1)

    OF was lower in lead workers at all three hemolytic points compared with the controls (P < 0.05).

  2. 2)

    A difference in hemolysis pattern between the two groups was observed (P < 0.05).

  3. 3)

    A close relationship was observed in both groups between OF and MCV (P < 0.05), although the results were contrasting. Also a close relationship was observed in lead workers between OF and hematocrit, OF and hemoglobin, OF and MCH, and OF and intracellular potassium (P < 0.05) but not in the controls. In the controls a close relationship was found between OF and RBC (P < 0.05) but this was not observed in the lead workers. No significant relationship was observed in either group between OF and MCHC, OF and intracellular sodium, and OF and intracellular water.

  4. 4)

    No difference in RBC, hematocrit, hemoglobin, MCV, MCH, MCHC, and intracellular water, sodium and potassium was observed between both groups.

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References

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Author information

Correspondence to Ichiro Karai MD.

Additional information

This work was supported in part by Grant-in-Aid for Encouragement of Young Scientists (1981) from the Ministry of Education, Science and Culture of Japan

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Karai, I., Fukumoto, K. & Horiguchi, S. Relationships between osmotic fragility of red blood cells and various hematologic data in workers exposed to lead. Int. Arch Occup Environ Heath 50, 17–24 (1982). https://doi.org/10.1007/BF00432490

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Key words

  • Erythrocyte osmotic fragility
  • Lead poisoning
  • MCV
  • Erythrocyte water