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. 2001 Jan;5(4):180-5.
doi: 10.1007/BF02918296.

Urinary porphyrins in patients with endemic chronic arsenic poisoning caused by burning coal in China

Y Xie  1 , M Kondo, H Koga, H Miyamoto, M Chiba
Affiliations

Urinary porphyrins in patients with endemic chronic arsenic poisoning caused by burning coal in China

Y Xie et al. Environ Health Prev Med. 2001 Jan.

Abstract

Objective: To evaluate the effect of arsenic (As) on the porphyrin biosynthetic pathway, urine samples from patients with endemic chronic arsenic poisoning were examined.

Subjects and methods: The subjects were 16 patients, who had been exposed to As from burning coal for 8 to 25 years, and 16 controls living in the same region in Guizhou Province in southwest China. Concentrations of urinary As, porphyrins and ALA were determined by induced coupled plasma mass spectrometry (ICP-MS), high performance liquid chromatography (HPLC) with a reversed-phase column and fluorescence detector, and colorimetric spectrophotometry, respectively.

Results: Concentrations of As in patients and controls, 184.40±200.04 and 86.82±64.20μ g/g creatinine (mean ±SD) respectively, were significantly different (p<0.05). The concentrations of various kinds of urinary porphyrins, including isomers I and III of coproporphyrin and pentacarboxylporphyrin, were determined. Positive correlations were observed between As and porphyrins (e.g. total porphyrins, hexacarboxylporphyrin and coproporphyrin III) or between As and ALA in male and female patients. However, porphyrin and ALA concentrations were not significantly different between the patients and the controls. Urinary porphyrin concentrations in females were higher than those in males.

Conclusion: Exposure to As from burning coal may influence porphyrin biosynthesis.

Keywords: China; Endemic arsenic poisoning; coal; porphyrin; urine.

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References

    1. {'text': '', 'ref_index': 1, 'ids': [{'type': 'PubMed', 'value': '1678948', 'is_inner': True, 'url': 'https://pubmed.ncbi.nlm.nih.gov/1678948/'}]}
    2. Garcia-Vargas GG, Garcia-Rangel A, Aguilar-Romo M, et al. A pilot study on the urinary excretion of porphyrins in human populations chronically exposed to arsenic in Mexico. Hum Exp Toxicol 1991; 10: 189–93. - PubMed
    1. {'text': '', 'ref_index': 1, 'ids': [{'type': 'PubMed', 'value': '7718303', 'is_inner': True, 'url': 'https://pubmed.ncbi.nlm.nih.gov/7718303/'}]}
    2. Garcia-Vargas GG, Del Razo LM, Cebrian ME, et al. Altered urinary porphyrin excretion in a human population chronically exposed to arsenic in Mexico. Hum Exp Toxicol 1994; 13: 839–47. - PubMed
    1. {'text': '', 'ref_index': 1, 'ids': [{'type': 'DOI', 'value': '10.1007/s002040050592', 'is_inner': False, 'url': 'https://doi.org/10.1007/s002040050592'}, {'type': 'PubMed', 'value': '10350189', 'is_inner': True, 'url': 'https://pubmed.ncbi.nlm.nih.gov/10350189/'}]}
    2. Hernandez-Zavala A, Del-Razo LM, Garcia-Vargas GG, et al. Altered activity of heme biosynthesis pathway enzymes in individuals chronically exposed to arsenic in Mexico. Arch Toxicol. 1999; 73: 90–5. - PubMed
    1. None
    2. Kondo M, Kijima S, Ichikawa I, et al. Abnormalities of potphyrin metabolism in a case with a past history of chronic exposure to arsenic. Porphyrins (in Japanese) 1998; 7: 51–7.
    1. {'text': '', 'ref_index': 1, 'ids': [{'type': 'DOI', 'value': '10.1016/0378-4274(93)90083-A', 'is_inner': False, 'url': 'https://doi.org/10.1016/0378-4274(93)90083-a'}, {'type': 'PubMed', 'value': '8427025', 'is_inner': True, 'url': 'https://pubmed.ncbi.nlm.nih.gov/8427025/'}]}
    2. Telolahy P, Javelaud B, Cluet J, et al. Urinary excretion of porphyrins by smelter workets chronically exposed to arsenic dust. Toxicol Letter 1993; 66: 89–95. - PubMed