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Schistosoma Haematobium
''Schistosoma haematobium'' (urinary blood fluke) is a species of digenetic trematode, belonging to a group (genus) of blood flukes (''Schistosoma''). It is found in Africa and the Middle East. It is the major agent of schistosomiasis, the most prevalent parasitic infection in humans. It is the only blood fluke that infects the urinary tract, causing urinary schistosomiasis, and is the leading cause of bladder cancer (only next to tobacco smoking). The diseases are caused by the eggs. Adults are found in the venous plexuses around the urinary bladder and the released eggs travels to the wall of the urine bladder causing haematuria and fibrosis of the bladder. The bladder becomes calcified, and there is increased pressure on ureters and kidneys otherwise known as hydronephrosis. Inflammation of the genitals due to ''S. haematobium'' may contribute to the propagation of HIV. ''S. haematobium'' was the first blood fluke discovered. Theodor Bilharz, a German surgeon working in Cair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodor Maximilian Bilharz
Theodor Maximilian Bilharz (23 March 1825 – 9 May 1862) was a German physician who made pioneering discoveries in the field of parasitology. His contributions led to the foundation of tropical medicine. He is best remembered as the discoverer of the blood fluke ''Schistosoma haematobium'', the causative parasite of bloody urine (haematuria) known since ancient times in Egypt. The parasite, as the cause of bladder cancer, is declared by the International Agency for Research on Cancer as Group 1 carcinogen. The infection is known by an eponymous term bilharzia or bilharziasis, as well as by schistosomiasis. Bilharz was born and educated in Sigmaringen, Hohenzollern-Sigmaringen, Germany. After graduating in natural science and philosophy from the Albert-Ludwigs-Universität in 1845, he earned a medical degree from the University of Tübingen in 1849. In 1850, he followed his former teacher Wilhelm Griesinger to Egypt to work at the Qasr El Eyni Hospital in Cairo. He became the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Agency For Research On Cancer
The International Agency for Research on Cancer (IARC; french: Centre International de Recherche sur le Cancer, CIRC) is an intergovernmental agency forming part of the World Health Organization of the United Nations. Its role is to conduct and coordinate research into the causes of cancer. It also collects and publishes surveillance data regarding the occurrence of cancer worldwide. Its IARC monographs programme identifies carcinogenic hazards and evaluates environmental causes of cancer in humans. IARC has its own governing council, and in 1965 the first members were the Federal Republic of Germany, France, Italy, the United Kingdom, and the United States of America. Today, IARC's membership has grown to 27 countries. History In late February 1963, after he experienced his spouse suffering and dying of cancer, journalist and peace activist Yves Poggioli sent a letter to Emmanuel d'Astier de la Vignerie relating his story, and urging support for the creation of an intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sucker (zoology)
A sucker in zoology refers to a specialised attachment organ of an animal. It acts as an adhesion device in parasitic worms, several flatworms, cephalopods, certain fishes, amphibians, and bats. It is a muscular structure for suction on a host or substrate. In parasitic annelids, flatworms and roundworms, suckers are the organs of attachment to the host tissues. In tapeworms and flukes, they are a parasitic adaptation for attachment on the internal tissues of the host, such as intestines and blood vessels. In roundworms and flatworms they serve as attachment between individuals particularly during mating. In annelids, a sucker can be both a functional mouth and a locomotory organ. The structure and number of suckers are often used as basic taxonomic diagnosis between different species, since they are unique in each species. In tapeworms there are two distinct classes of suckers, namely "bothridia" for true suckers, and " bothria" for false suckers. In digeneal flukes there ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carcinoma
Carcinoma is a malignancy that develops from epithelial cells. Specifically, a carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that arises from cells originating in the endodermal, mesodermal or ectodermal germ layer during embryogenesis. Carcinomas occur when the DNA of a cell is damaged or altered and the cell begins to grow uncontrollably and become malignant. It is from the el, καρκίνωμα, translit=karkinoma, lit=sore, ulcer, cancer (itself derived from meaning ''crab''). Classification As of 2004, no simple and comprehensive classification system has been devised and accepted within the scientific community. Traditionally, however, malignancies have generally been classified into various types using a combination of criteria, including: The cell type from which they start; specifically: * Epithelial cells ⇨ carcinoma * Non-hematopoietic mesenchymal cells ⇨ sarcoma * Hematopoietic cells **Bone marrow-de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reginald Harrison
Reginald Harrison FRCS (24 August 1837 – 28 February 1908) was a British surgeon, sometime vice-president and Member of the Council of the Royal College of Surgeons and Consulting Surgeon to St Peter's Hospital. Life Harrison was educated at Rossall School, Lancashire, and after a short period of probation at the Stafford general hospital, he entered St. Bartholomew's Hospital, London, qualifying in 1859. In 1866 he returned to Lancashire to take up an appointment as assistant physician to the Liverpool Royal Infirmary becoming full surgeon in 1874, later to specialise in diseases of the male genito-urinary system.Reginald Harrison (1837–1908). Nature 140, 310–311 (1937). https://doi.org/10.1038/140310d0 In 1889 he returned to London as surgeon to St. Peter's Hospital for Stone and Other Urinary Diseases. He was the author of ''Surgical Disorders of the Urinary Organs'', which became a standard text-book, and ''The Use of the Ambulance in Civil Practice'', having taken a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Marg
El Marg ( ar, المرج ) is an administrative ward (''kism'') of Cairo, in the north-east of the Cairo Governorate, bordering Qalyubia Governorate near Shubra El Kheima. It was separated from the El Salam district (to its south) on 1 April 1994. Its residential area is densely populated. It covers 16.94 square kilometers, with 251,589 people according to a 1996 census, increasing to 507,035 in 2006. El Marg was a royal property belonging to the Burji dynasty of the Mamluk Sultanate The Mamluk Sultanate ( ar, سلطنة المماليك, translit=Salṭanat al-Mamālīk), also known as Mamluk Egypt or the Mamluk Empire, was a state that ruled Egypt, the Levant and the Hejaz (western Arabia) from the mid-13th to early 16th .... References 1994 establishments in Egypt Districts of Cairo Populated places established in 1994 {{Egypt-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbis
''Planorbis'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids. All species in this genus have sinistral or left-coiling shells.Bouchet, P.; Rosenberg, G. (2014). Planorbis O. F. Müller, 1773. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=182692 on 2014-11-23 Description ''Planorbis'' shells are flat-coiled and sinistral. Distribution This genus has a worldwide distribution. It is known from the Jurassic to the Recent periods.(in Czech) Pek I., Vašíček Z., Roček Z., Hajn. V. & Mikuláš R.: ''Základy zoopaleontologie''. - Olomouc, 1996. 264 pp., . Species Species within the genus ''Planorbis'' include: ;Subgenus ''Planorbis (Jalpuchorbis)'' Prysjazhnjuk & Kovalenko, 1986 * † ''Planorbis bolgradensis'' Prysjazhnjuk & Kovalenko, 1986 * † ''Planorbis roshkai'' Prysjazhnjuk & Kovalenko, 1986 ; Subgenus ''P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulinus
''Bulinus'' is a genus of small tropical freshwater snails, aquatic gastropod mollusks in the family Bulinidae, the ramshorn snails and their allies. MolluscaBase eds. (2020). MolluscaBase. Bulinus O. F. Müller, 1781. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=224352 on 2020-06-27 This genus is medically important because several species of ''Bulinus'' function as intermediate hosts for the schistosomiasis blood fluke. Taxonomy Miocene genus ''Kosovia'' was synonymized ''Bulinus'' in 2017. Distribution These snails are widespread in Africa including Madagascar and the Middle East. This genus has not yet become established in the USA, but it is considered to represent a potentially serious threat as a pest, an invasive species which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore it has been suggested that this species be given top national quarantine signifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Thomson Leiper
Robert Thomson Leiper (17 April 1881 – 21 May 1969) FRS CMG was a British parasitologist and helminthologist. Early life and education Leiper was born on 17 April 1881 in Witch Road, Kilmarnock, Scotland; the eldest of three children of John Leiper (died 1895), tailor, and his wife, Jessie Aird. The family moved to England shortly after he was born. He was educated at Warwick School, spending time at the Warwick Technical College to further his studies in science. He spent a year at Mason Science College (which later became the University of Birmingham), matriculating in physics, mathematics, English and Latin. He then entered the University of Glasgow to study medicine, at which he excelled, winning awards such as the John Hunter Medal and the Senior Arnott Prize in the field; graduating in 1904. Career From an early age Leiper was devoted to helminthology, the study of parasitic flatworms; while still an undergraduate, at the age of 21, he discovered an undocumented turbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Code Of Zoological Nomenclature
The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its publisher, the International Commission on Zoological Nomenclature (which shares the acronym "ICZN"). The rules principally regulate: * How names are correctly established in the frame of binominal nomenclature * Which name must be used in case of name conflicts * How scientific literature must cite names Zoological nomenclature is independent of other systems of nomenclature, for example botanical nomenclature. This implies that animals can have the same generic names as plants (e.g. there is a genus ''Abronia'' in both animals and plants). The rules and recommendations have one fundamental aim: to provide the maximum universality and continuity in the naming of all animals, except where taxonomic judgment dictates otherwise. The code is meant to guid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Friedrich Weinland
David Friedrich Weinland (30 August 1829 in Grabenstetten – 19 September 1915 in Hohenwittlingen) was a German zoologist and novelist. The son of a pastor, Weinland attended the Protestant Seminary in Maulbronn from 1843 to 1847. He studied theology at the University of Tübingen 1847–51, followed by two semester of studying natural sciences. He earned his PhD in 1852. then worked as an assistant at the Zoological Museum in Berlin. From 1855 he conducted scientific investigations in Canada, Mexico and the Caribbean (especially Haiti) and worked for three years in Louis Agassiz's microscopical laboratory at Harvard University. In 1859 he returned to Germany as director of the Frankfurt Zoological Garden; in this capacity he edited the journal "''Der Zoologische Garten''". and contributed significantly to the enthusiasm for founding zoos, which spread among the middle classes. Following the publication of Otto Hahn's 1880 work, ''Die Meteorite (Chondrite) und ihre O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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