Katherine Belov

	Katherine Belov Katherine Belov (born 1973) is an Australian geneticist, professor of comparative genomics in the School of Life and Environmental Sciences and Pro Vice Chancellor of Global Engagement at the University of Sydney. She is head of the Australasian Wildlife Genomics Group and research expert in the area of comparative genomics and immunogenetics, including Tasmanian devils and koalas, two iconic Australian species that are threatened by disease processes. Throughout her career, she has disproved the idea that marsupial immune system is primitive, characterized the South American gray short-tailed opossum's immune genes, participated in the Platypus Genome Project, led research identifying the properties of platypus venom, and identified the cause of the spread of the Tasmanian devil's contagious cancer. Belov is an advocate for Women in STEM and leads a research team of largely female students and post-doctoral students. Biography Katherine Belov was born in Sydney, Australia in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
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picture info	Platypus The platypus (''Ornithorhynchus anatinus''), sometimes referred to as the duck-billed platypus, is a semiaquatic, egg-laying mammal endemic to eastern Australia, including Tasmania. The platypus is the sole living representative or monotypic taxon of its family ( Ornithorhynchidae) and genus (''Ornithorhynchus''), though a number of related species appear in the fossil record. Together with the four species of echidna, it is one of the five extant species of monotremes, mammals that lay eggs instead of giving birth to live young. Like other monotremes, it senses prey through electrolocation. It is one of the few species of venomous mammals, as the male platypus has a spur on the hind foot that delivers a venom, capable of causing severe pain to humans. The unusual appearance of this egg-laying, duck-billed, beaver-tailed, otter-footed mammal baffled European naturalists when they first encountered it, and the first scientists to examine a preserved platypus body (i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Major Histocompatibility Complex The major histocompatibility complex (MHC) is a large locus on vertebrate DNA containing a set of closely linked polymorphic genes that code for cell surface proteins essential for the adaptive immune system. These cell surface proteins are called MHC molecules. This locus got its name because it was discovered via the study of transplanted tissue compatibility. Later studies revealed that tissue rejection due to incompatibility is only a facet of the full function of MHC molecules: binding an antigen derived from self-proteins, or from pathogens, and bringing the antigen presentation to the cell surface for recognition by the appropriate T-cells. MHC molecules mediate the interactions of leukocytes, also called white blood cells (WBCs), with other leukocytes or with body cells. The MHC determines donor compatibility for organ transplant, as well as one's susceptibility to autoimmune diseases. In a cell, protein molecules of the host's own phenotype or of other biologic entit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Devil Facial Tumour Disease Devil facial tumour disease (DFTD) is an aggressive non-viral clonally transmissible cancer which affects Tasmanian devils, a marsupial native to Australia. DFTD was first described in 1996. In the subsequent decade the disease ravaged Tasmania's wild devils. Affected high-density populations had up to 100% mortality in 12–18 months. Between 1996 and 2015, DFTD wiped out 95% of affected populations. Clinical signs There is often more than one primary tumour. Visible signs of DFTD begin with lumps of soft tissue around the mouth, which ulcerate. Tumours are locally aggressive, destroying the underlying bone of the jaw which interferes with feeding. Tumours may also cover the eyes. Devils usually die within six months from organ failure, secondary infection, or metabolic starvation. DFTD is rare in juveniles. It affects males and females equally. Transmission The most plausible route of transmission is through biting, particularly when canine teeth come into direct contact wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Clonally Transmissible Cancer A transmissible cancer is a cancer cell or cluster of cancer cells that can be transferred between individuals without the involvement of an infectious agent, such as an oncovirus. Transmission of cancer between humans is rare. The evolution of transmissible cancer has occurred naturally in other animal species, but human cancer transmission is rare. Humans In humans, a significant fraction of Kaposi's sarcoma occurring after transplantation may be due to tumorous outgrowth of donor cells. Although Kaposi's sarcoma is caused by a virus (Kaposi's sarcoma-associated herpesvirus), in these cases, it appears likely that transmission of virus-infected tumor cells—rather than the free virus—caused tumors in the transplant recipients. In 2007, four people (3 women & 1 man) received different organ transplants (liver, both lungs and kidneys) from a 53-year-old woman who had recently died from intracranial bleeding. Before transplantation, the organ donor was deemed to have no signs of c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]