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Hairworms coming out of a praying mantis.
thank you cleveland clinic dot org i really wasnt sure which one was round and which one was flat
Bite the Dust
The monster under your bed isn’t a great beast, it’s a tiny dust mite. Mites’ greatest threat is for people whose overzealous immune systems develop allergies. And now a link between allergies and helminth worm infections has emerged, though whether they reduce or worsen symptoms is hotly debated. The link could come from molecular similarities between allergens such as dust mites and helminth antigens (worm proteins recognised by the immune system). To test this idea, researchers asked whether antibodies (the body’s defence molecules, red) could latch onto worms in samples from mice with no previous exposure (left), those sensitised to dust mites (middle) and those with immunity from previous helminth infections (right). They showed that dust mite sensitisation prepped the body to attack helminths, which could imply pro-allergenic properties of dust mites and helminth molecules, adding a new layer complexity to the issue, meaning the dust has not yet settled on this debate.
Written by Anthony Lewis
Image adapted from work by Pedro Henrique Gazzinelli-Guimaraes and colleagues
Laboratory of Parasitic Diseases, NIAID, National Institutes of Health; Bethesda, MD, USA
Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)
Published in PLOS Pathogens, March 2021
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Animalia parasites Helminths - Worms • Multicellular, and most adults are anaerobic. • Reproduction may be hermaphroditic or involve separate male and female sexes. Nemathelminthes* comprise the Nematodes, aka, the roundworms. Platyhelminthes com
Our tutorials on Parasite biology have links to flashcards like this one, where we blend our illustrations with histological examples!
Past and Present
Parasitic worms, or helminths, are thought to affect over 1.5 billion people worldwide, particularly in developing nations. While rarely fatal, helminth infections can be seriously harmful, especially to children, with links to malnutrition and impaired development. In Europe, infections are now extremely rare, but evidence from helminth eggs (pictured) found in archaeological sites indicates they were common in the Middle Ages. Most recently, researchers identified eggs of both soil-dwelling nematodes and tapeworms associated with undercooked meat and fish in medieval graves in several European countries. Though rates vary between sites and species, they estimated 25% of the population on average was infected with Ascaris nematodes, mirroring some modern estimates in high-risk areas. Faced with a similar problem to affected communities today, improvements in sanitation, water treatment and hygiene processes brought infections down in Europe, before anti-helminth drugs existed, suggesting that such changes are a key part of tackling this problem.
Written by Emmanuelle Briolat
Image by Adrian Smith and Patrik Flammer, University of Oxford, UK
Department of Zoology, University of Oxford, Oxford, UK
Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)
Research published in PLOS Neglected Tropical Diseases, August 2020
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Lethal Ladybirds
A third of the world’s population is infected with parasitic worms called helminths. Schistosomiasis is one of the many diseases they cause, resulting in 200,000 deaths a year. On a mission to find new drugs to treat helminth infections, researchers turn to insects, specifically the harlequin ladybird, which produces a range of potent anti-microbials including harmonine. They tested the effects of harmonine on Schistosoma mansoni, the helminth responsible for schistosomiasis. Growing S.mansoni adults in dishes with harmonine resulted in damage to several tissues needed for their survival, including outer protective layers, reproductive organs, and the gut. The guts of harmonine-treated helminths (pictured, right) were distended compared to untreated helminths (left), as revealed by confocal microscopy. Increasing the dose of harmonine resulted in further damage and the eventual death of S.mansoni adults. These results provide new avenues for research into novel compounds to combat the diseases caused by helminths.
Written by Lux Fatimathas
Image from work by Josina Kellershohn and colleagues
Institute of Parasitology, BFS, Justus Liebig University, Giessen, Germany
Image originally published under a Creative Commons Licence (BY 4.0)
Published in PLOS Neglected Tropical Diseases, March 2019
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Worms in Stomach: Understanding the Causes, Symptoms, and Treatments Welcome to our comprehensive guide on worms in the stomach. In this article, we will delve into the various causes, symptoms, and treatments associated with this condition. We aim to provide you with detailed and accurate information that can help you understand and address this health concern effectively. Understanding Worms in the Stomach Worms in the stomach, also known as gastrointestinal parasitic infections, are caused by various types of worms that can infest the digestive system. These parasites can affect individuals of all ages and can lead to discomfort, pain, and […]
Worms in Stomach: Understanding the Causes, Symptoms, and Treatments Welcome to our comprehensive guide on worms in the stomach. In this article, we will delve into the various causes, symptoms, and treatments associated with this condition. We aim to provide you with detailed and accurate information that can help you understand and address this health concern effectively. Understanding Worms in the Stomach Worms in the stomach, also known as gastrointestinal parasitic infections, are caused by various types of worms that can infest the digestive system. These parasites can affect individuals of all ages and can lead to discomfort, pain, and other health issues if left untreated. Causes of Worms in the Stomach Worms in the stomach can be contracted through various means, including: Ingesting contaminated food or water Coming into contact with infected soil or feces Poor hygiene practices Common Types of Worms Several types of worms can infest the stomach and digestive system. The most common ones include: Roundworms: These worms, scientifically known as Ascaris lumbricoides, are the most prevalent intestinal parasites. They can grow up to several inches long and can cause abdominal pain, diarrhea, and malnutrition. Tapeworms: Tapeworms, or cestodes, are flat, segmented worms that can reside in the intestines. They are usually contracted by consuming undercooked or raw meat. Symptoms of tapeworm infection may include weight loss, nausea, and digestive disturbances. Hookworms: Hookworms, scientifically called Ancylostoma duodenale and Necator americanus, are small worms that attach themselves to the intestinal wall and feed on blood. They are commonly found in areas with poor sanitation and can cause anemia, fatigue, and abdominal pain. Signs and Symptoms Identifying the signs and symptoms of worm infestation is crucial for prompt diagnosis and treatment. The common symptoms associated with worms in the stomach include: Abdominal pain or discomfort Nausea and vomiting Diarrhea or constipation Unexplained weight loss Fatigue and weakness Visible worms or eggs in the stool Diagnosis and Treatment If you suspect a worm infestation in your stomach, it is important to consult a healthcare professional for an accurate diagnosis. The diagnosis usually involves: Reviewing your medical history and symptoms Physical examination Stool sample analysis Once diagnosed, appropriate treatment options will be recommended based on the specific type of worm infestation. Common treatments include: Anthelmintic medications: These medications are prescribed to kill and eliminate the worms from the digestive system. Hygiene and sanitation measures: Practicing good hygiene, such as washing hands thoroughly and maintaining clean living spaces, can help prevent further infestations. Dietary modifications: In some cases, dietary changes may be recommended to support the treatment process and promote overall digestive health. Prevention Tips Preventing worm infestations in the stomach can be achieved by following these simple yet effective tips: Wash hands thoroughly with soap and water before eating or preparing food. Avoid consuming undercooked or raw meat. Drink clean and safe water. Maintain proper sanitation and hygiene practices. Regularly deworm pets to prevent potential transmission. [caption id="attachment_73249" align="aligncenter" width="1024"] worms in stomach[/caption] Worms in the stomach can cause discomfort and health issues if not addressed promptly. By understanding the causes, symptoms, and treatments associated with this condition, you are better equipped to take appropriate preventive measures and seek timely medical assistance. Remember, maintaining good hygiene practices and following preventive tips can go a long way in protecting yourself and your loved ones from worm infestations in the stomach. Frequently Asked Questions about Worms in Stomach 1. What are worms in the stomach? Worms in the stomach refer to parasitic worms that infect the gastrointestinal tract. 2. What are the common types of worms found in the stomach? The common types of worms found in the stomach include roundworms, tapeworms, and hookworms. 3. How do people get worms in their stomachs? People can get worms in their stomachs by consuming contaminated food or water, or through poor hygiene practices. 4. What are the symptoms of having worms in the stomach? Symptoms of having worms in the stomach may include abdominal pain, diarrhea, nausea, vomiting, weight loss, and fatigue. 5. How can worms in the stomach be diagnosed? Worms in the stomach can be diagnosed through stool sample analysis or specific blood tests. 6. Can worms in the stomach be treated? Yes, worms in the stomach can be treated with antiparasitic medications prescribed by a healthcare professional. 7. Are worms in the stomach contagious? No, worms in the stomach are not directly contagious, but the eggs or larvae of some worms can be spread through close contact or contaminated environments. 8. How can I prevent getting worms in my stomach? To prevent getting worms in your stomach, practice good hygiene, wash your hands regularly, avoid consuming undercooked or raw meat, and drink safe, clean water. 9. Can pets transmit worms to humans? Yes, pets, especially dogs and cats, can transmit certain types of worms to humans. Regular deworming and proper hygiene can help prevent transmission. 10. When should I seek medical attention for worms in my stomach? If you suspect you have worms in your stomach or experience persistent symptoms, it is advisable to seek medical attention for proper diagnosis and treatment.