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From the Greek opisthen (behind) and orchis (testicle), Opisthorchis is a genus of trematode flatworms whose testes are located in the posterior end of the body. Sebastiano Rivolta is generally credited with discovering the first opisthorchid, which he named Distoma felineus, in a cat in Italy in 1884.
Clonorchis sinensis under a light microscope: Notice the uterus; this species is monoecious. An adult C. sinensis is a flattened (dorsoventrally) and leaf-shaped fluke. The body is slightly elongated and slender, measuring 15–20 mm in length and 3–4 mm in width. [ 10 ]
Opisthorchiidae is a family of digenean trematodes. Opisthorchiidae have cosmopolitan distribution. [1]The most medically important species in the family Opisthorchiidae are Clonorchis sinensis, Opisthorchis viverrini, and Opisthorchis felineus, [1] that are causes of the disease clonorchiasis.
O. viverrini (together with Clonorchis sinensis and Opisthorchis felineus) is one of the three most medically important species in the family Opisthorchiidae. [4] In fact O. viverrini and C. sinensis are capable of causing cancer in humans, and are classified by the International Agency for Research on Cancer as a group 1 biological carcinogen ...
It is a deciduous tree growing to 20 m in height. The bark is thick and brown, but does not fissure. The leaves are broad, ovate, 20–40 cm long, and 11–20 cm broad. The flowers are fragrant and 10–15 cm wide, with 9–12 (rarely to 17) white tepals, and appear from May to June.
Opisthorchis felineus, the Siberian liver fluke or cat liver fluke, is a trematode parasite that infects the liver in mammals.It was first discovered in 1884 in a cat's liver by Sebastiano Rivolta [] of Italy.
Millingtonia hortensis, the tree jasmine or Indian cork tree, is the sole species in the genus Millingtonia, [2] a tree native to South Asia and South East Asia. In the name Millingtonia hortensis , Millingtonia is named for Sir Thomas Millington who was an inspiration to Carl Linnaeus the Younger who first described the genus. [ 3 ]
An extract of the leaves contains hodulcine, a glycoside which exhibits an anti-sweet activity. [3] The timber is fine and hard and is used for building construction and fine furniture. Hovenia dulcis is a natural source for dihydromyricetin, a flavonoid with antioxidant properties and is primarily found in the tree's leaves, stems, and bark. [4]