Helicobacter pylori (H. pylori) is a type of bacteria that causes infections in the stomach. Approximately, two thirds of the world's population is infected with this bacterium. Which can be transmitted through contaminated water and food, but researchers are not sure that this is the cause. It can cause peptic ulcers and stomach cancer.
If you have symptoms of a peptic ulcer, your doctor will test your blood, breath or stool to see if it contains H. pylori. Is best treated with a combination of antibiotics and drugs that lower stomach acid (called antacids). You will have to get another test after treatment to ensure the infection has disappeared. A lot of people, including doctors, tend to believe that the cause of ulcers (sores) in the stomach or duodenum (the first section of the small intestine) is fatigue, alcoholic beverages or spicy foods. Is shown. In fact, these ulcers, called peptic ulcers, are most often caused by bacteria, and / or organism called helicobacter pylori.
The rate of H pylori infection in children in the United States is low, but can infect more than 75% of children in increasing countries. Although infections increase in frequency as people age, most children and adults with H …show more content…
pylori never advance an infection. Nobody knows for sure how the H pylori contracts, but contact from person to person could be a way, and transmission through polluted food and water. The incubation period is also mysterious.
Signs and symptoms When H pylori cause’s ulcers, the concentration of symptoms can vary. In some cases, there are no symptoms. Ulcers can cause a burning sensation or elongated pain in the stomach that may come and go, often it appears a few hours after eating, as well as overnight and then down when eating or drinking water. Other symptoms may include: Swelling, Gases, Nausea and vomiting, Loss of appetite, Weight loss, and Vomiting blood, dark stools due to bleeding in the stomach or duodenum. In 1994, the International Bureau for Research on Cancer classified H.
pylori as a carcinogen, or cancer-causing in humans, in spite of conflicting results at that time. Since then, the colonization of the stomach with H. pylori has been gradually more accepted as an important cause of stomach cancer and gastric lymphoma of lymphoid tissue associated with the mucosa. H. pylori infection is also associated with a lower risk of esophageal adenocarcinoma. It is believed that the H. pylori bacteria spreads through soiled food and water and the direct contact of word of mouth. In most residents, the bacterium is acquired in youthful. The infection is more likely in children living in deficiency, in crowded places and in areas with poor
cleanliness.
H. pylori contamination is the major cause well-known for gastric cancer. Other risk factors for gastric cancer take in chronic gastritis; older; male; diet high in salted, smoked, or poorly preserved foods and low in fruits and vegetables; smoking; malevolent anemia; a history of stomach surgery for benign surroundings; and family history of stomach cancer.
H. pylori has different relations with the two major classes of gastric cancer. While people infected with H. pylori has a higher risk of cardia gastric cancer, your risk of gastric cardiac cancer does not flood and rather declines.
What evidence indicates that H. pylori infection causes gastric cancer?
Epidemiological studies have shown that H. pylori infected people have an increased risk of gastric adenocarcinomas. The increased risk appears to be restricted to non-cardia gastric cancer. For example, a 2001 combined analysis of 12 studies of cases and controls H. pylori and gastric cancer calculated that the risk of cardia gastric cancer was nearly six times higher for people infected with H. pylori than for people without infection.
Further evidence of association between H. pylori infection and the risk of cardia gastric cancer comes from prospective cohort studies such as the Cancer Prevention Study with alpha-tocopherol and beta-carotene (ATBC) in Finland. When comparing subjects who showed cardia gastric cancer with control subjects without cancer, researchers found that H. pylori infected individuals had nearly eight times higher risk of cardia gastric cancer.