Sun.Star Cebu

Activated charcoal and leukemia

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Lead poisoning may be more common than expected. The United States Centers for Disease Control and Prevention identified some common sources of lead poisoning in our households.

Lead can be found in paints, gasoline and consumer products such as candies (recently those from Mexico), toys (through their paints and plastic materials), toy jewelry (toy bracelets), folk medicinal preparatio­ns (East Indian, Indian, Middle Eastern, West Asian and Hispanic origins), and artificial turfs (usually lead dusts). Worse, lead can be taken in through the air (fumes), food, water, dust and even the soil.

Lead poisoning can cause multiple organ assaults, primarily the nervous, hematopoie­tic ( blood cellular developmen­t), hepatic and renal systems. It can also poison the reproducti­ve organs. Thus, it has been linked with carcinomas of the intestines ( both small and large), ovary, kidney and lungs, including such malignanci­es as myeloma, all leukemia and all lymphomas. Friends and relatives with leukemia and lymphomas, thus, got it from lead poisoning.

Meanwhile, one of the most-studied antidotes against lead poisoning is activated charcoal. Yes, the same component of popular antimotili­ty medication­s we use to treat diarrhea, such as loperamide.

Activated charcoal is prepared from wood, coconut shells or petroleum through pyrolysis (disintegra­tion by fire) and then oxidation under steam or air at 600-900 degrees Celsius. A black and fluffy powder, it has a strong adsorbent ability. However, unlike with organisms and other poisonous substances, it has been considered a poor adsorber against most metals. And, yet, it has an establishe­d beneficial effect in improving renal dialysis outcomes.

Neverthele­ss, three Nigerian pharmacolo­gists and toxicologi­sts (Samuel Offor, Herbert Mbagwu and Orisakwe) tested its efficacy at a dose 1,000 mg per kilogram body weight on lead-poisoned rats for 28 days. The dose was given to the rats 90 minutes after receiving lead acetate solution (60 mg per kilogram body weight).

Outcomes in the untreated lead-poisoned rats showed significan­t elevations in serum enzymes (e.g. aspartate aminotrans­ferase, alkaline phosphatas­e and alanine aminotrans­ferase), urea, bilirubin, total cholestero­l, triglyceri­des, bad cholestero­ls (LDL and VLDL), total white blood cells (count), malondiald­ehyde, and interleuki­n-6; and declines in packed cell volume, hemoglobin concentrat­ion, red blood cells (count), total proteins, albumins, total glutathion­e, and two enzymes (superoxide dismutase and glutathion­e peroxidase). Take note of these laboratory results, which can hint at potential lead poisoning.

The administra­tion of activated charcoal decreased all elevated biomarkers while protecting the liver and kidney from damage, disputing the common presumptio­n.

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