In a scientific breakthrough, Monash University researchers have discovered a revolutionary "U-turn" in the evolution of antibiotic resistance, challenging the widely accepted notion that traits once developed are irreversible.
Evolution
Jan 5, 2024
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119
LMU researchers have discovered a weakness in the bacterium Helicobacter pylori, which could be exploited to develop new drugs.
Cell & Microbiology
Apr 26, 2023
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12
The microbes living in your food can affect your risk of cancer. While some help your body fight cancer, others help tumors evolve and grow.
Evolution
Jan 31, 2023
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8
Early migrations of humans to the Americas from Siberia around 12,000 years ago have been traced using the bacteria they carried by an international team including scientists at the University of Warwick.
Evolution
Jun 14, 2021
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410
More than half of the world's population carries the bacterium Helicobacter pylori in their stomach mucosa. It often causes no problems throughout life, but sometimes it can cause inflammation, and in some cases, it can even ...
Cell & Microbiology
Oct 15, 2020
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82
The bacterium Helicobacter pylori is linked to increased risk of stomach cancer, and is genetically highly variable. A new study by researchers of Ludwig-Maximilians-Universitaet (LMU) in Munich explores the role played by ...
Cell & Microbiology
Sep 2, 2020
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3
The bacterium Helicobacter pylori colonizes the stomach in half of the world's population and increases the risk of gastric cancer.
Cell & Microbiology
Feb 10, 2020
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5
Stomach cancer is the third-leading cause of cancer-related death across the globe. One of the main risk factors for this disease is infection with the bacterium Helicobacter pylori. About half of the world's population is ...
Cell & Microbiology
Jan 23, 2020
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148
Scientists have uncovered a novel antibiotic-free approach that could help prevent and treat one of the most widespread bacterial pathogens, using nanocapsules made of natural ingredients.
Bio & Medicine
Oct 17, 2019
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95
A team at the Technical University of Munich (TUM) has completed the first study of the effects of a simultaneous infection with blood flukes (schistosomes) and the bacterium Helicobacter pylori—a fairly common occurrence ...
Cell & Microbiology
Sep 18, 2019
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5
Helicobacter pylori (pronounced /ˌhɛlɪkɵˈbæktər pɪˈlɔəraɪ/) is a Gram-negative, microaerophilic bacterium that inhabits various areas of the stomach and duodenum. It causes a chronic low-level inflammation of the stomach lining and is strongly linked to the development of duodenal and gastric ulcers and stomach cancer. Over 80% of individuals infected with the bacterium are asymptomatic.
The bacterium was initially named Campylobacter pyloridis, then renamed C. pylori to correct a Latin grammar error. When 16S rRNA gene sequencing and other research showed in 1989 that the bacterium did not belong in the genus Campylobacter, it was placed in its own genus, Helicobacter. The genus derived from the Ancient Greek hělix/έλιξ "spiral" or "coil". The specific epithet pylōri means "of the pylorus" or pyloric valve (the circular opening leading from the stomach into the duodenum), from the Ancient Greek word πυλωρός, which means gatekeeper.
More than 50% of the world's population harbour H. pylori in their upper gastrointestinal tract. Infection is more prevalent in developing countries, although incidence is decreasing in western countries. The route of transmission is unknown, although individuals become infected in childhood. H. pylori's helix shape (from which the generic name is derived) is thought to have evolved to penetrate the mucoid lining of the stomach.
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