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Leech secretions contain several bioactive substances with anti-inflammatory, anticoagulant and antimicrobial effects. [70] One active component of leech saliva is a small protein, hirudin. [72] It is widely used as an anticoagulant drug to treat blood-clotting disorders, and manufactured by recombinant DNA technology. [73] [74]
Hirudo medicinalis, or the European medicinal leech, is one of several species of leeches used as medicinal leeches. Other species of Hirudo sometimes also used as medicinal leeches include H. orientalis , H. troctina , and H. verbana .
The stomach connects to an intestine, followed by a colon, a rectum, and finally an anus located on the leech's back. M. decora, like all leeches, is hermaphroditic, and has ten testisacs and two ovisacs, in addition to male and female genital pores. First described by Thomas Say in 1824, the species is now placed in the genus Macrobdella.
Here are some common causes of stomach pain and discomfort — and how to fix them. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
Norovirus, also known as Norwalk virus and sometimes referred to as the winter vomiting disease, is the most common cause of gastroenteritis. [1] [6] Infection is characterized by non-bloody diarrhea, vomiting, and stomach pain. [2] [3] Fever or headaches may also occur. [2]
"Jawed leeches" - termed "Gnathobdellae" or "Gnathobdellida" - are exclusively found among the Hirudiniformes, but the order contains a number of jawless families as well. The jawed, toothed forms make up the aquatic Hirudidae and the terrestrial Haemadipsidae and Xerobdellidae (sometimes included in the preceding but worthy of recognition as ...
When stomach cancer spreads beyond the stomach to other parts of the body, the NCI says it can cause: Bloody feces. Vomiting. Unexplained weight loss. Stomach pain. Jaundice. Build-up of fluid in ...
Although blood-sucking leeches do little direct harm to their victims, some transmit flagellates that can be very dangerous to their hosts. Some small tube-dwelling oligochaetes transmit myxosporean parasites that cause whirling disease in fish.