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The 700-year-old Mexican Mummy With A Tummy Ache

Date:
July 15, 2008
Source:
BioMed Central
Summary:
Remnants of the bacterium that causes stomach ulcers, Helicobacter pylori, have been discovered in gastric tissue from North American mummies. A study of human remains believed to predate Columbus' discovery of the New World has shown for the first time that H. pylori infection occurred in native populations.

A mummy.
Credit: Yolanda Lopez Vidal and Gonzalo Castillo-Rojas

Remnants of the bacterium that causes stomach ulcers, Helicobacter pylori, (H. pylori) have been discovered in gastric tissue from North American mummies. A study of human remains believed to predate Columbus' discovery of the New World has shown for the first time that H. pylori infection occurred in native populations, according to research published in BioMed Central's open access journal, BMC Microbiology.

Yolanda Lòpez-Vidal and colleagues from the National Autonomous University of Mexico studied the stomach, tongue-soft palate and brains of two naturally mummified corpses - one young boy and one adult male. The researchers looked for the presence of telltale fragments of H. pylori DNA in the remains after amplification by polymerase chain reaction (PCR). According to Lòpez-Vidal, "Our results show that H. pylori infections occurred around 1350AD in the area we now know as Mexico".

Although previous research has suggested that H. pylori was present in these communities, this is the first evidence that it caused gastric infections. Lòpez-Vidal explains, "It is only through the use of the stomach tissue of these incredible mummies that we were able to make this discovery. Infection is established when the micro-organism infiltrates the stomach lining and induces a local inflammatory response. This is unlike colonisation, which does not cause such a response and does not occur in the stomach".

As well as stomach ulcers, H. pylori causes gastritis, duodenitis, and cancer. It is a helix-shaped bacteria that is believed to be transmitted by the ingestion of food or water contaminated with faecal matter.


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The above story is based on materials provided by BioMed Central. Note: Materials may be edited for content and length.


Cite This Page:

BioMed Central. "The 700-year-old Mexican Mummy With A Tummy Ache." ScienceDaily. ScienceDaily, 15 July 2008. <www.sciencedaily.com/releases/2008/07/080714192606.htm>.
BioMed Central. (2008, July 15). The 700-year-old Mexican Mummy With A Tummy Ache. ScienceDaily. Retrieved August 30, 2014 from www.sciencedaily.com/releases/2008/07/080714192606.htm
BioMed Central. "The 700-year-old Mexican Mummy With A Tummy Ache." ScienceDaily. www.sciencedaily.com/releases/2008/07/080714192606.htm (accessed August 30, 2014).

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