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ancestral in Medical News

Malcolm X Daughter Travels to Ancestral Home; Joins Muslim-American Leadership to Fight Malaria in Mali

NEW YORK, Dec. 7 /PRNewswire-USNewswire/ -- In her 2002 book "Growing Up X," Ilyasah Shabazz describes growing up as the daughter of martyred civil rights leader Malcolm X. More recently, Ms. Shabazz has delved deeper into her family tree, discovering her roots in the African nation of Mali. ...

Understanding the process of homosexual identity formation among Asian and Pacific Islander youth

...d Asian and Pacific Islanders (API), who are in the sexual minority, face psychological and social stresses in dealing with their families' values and ancestral cultures that significantly impact the development of their ethnic and sexual identities. API teens and young adults identified as gay, lesbian, ...

Evolution and epilepsy

...e of the potassium channels of very early chordates had the clustering sequence. Potassium channel clustering sequences first appeared in a vertebrate ancestral to sharks, "only" around 400 to 450 million years ago. The clustered potassium channels serve an important supporting function, making nerve signa...

Genome-wide Association Studies Must Account for Ancestry

...sociation studies or the results may not be accurate. “We believe the ancestral differences should also be examined in the context of any clinical epidemio...;Until now, scientists have depended on a person’s knowledge of their ancestral roots when they study human populations to look for risk genes,” said...

DNA Jewel to Finance Anti-Aging Services & Cancer Research

...rtistic already uses the concept of DNA identification to offer its clients DNA-inspired paintings. Similar technology allows clients to explore their ancestral origins at http://www.dnapast.com . Inneova(TM), one of the first companies worldwide, provides adult cell cryobanking services to preserve h...

23andMe Announces Holiday Season Multi-Pack Discount

...o grandchildren. Global Similarity - a mapping feature that places individuals in a global context. Over a thousand reference populations provide ancestral perspective and a plot to compare how family members cluster together. "Family members who enroll in our Personal Genome Service get a richer ...

Genome sequence of lancelet shows how genes quadrupled during vertebrate evolution

... that both genomes can be expressed in terms of 17 ancestral pieces. So, we can say with some confidence that 5...reconstructed what happened next. Each of those 17 ancestral segments was duplicated twice in the evolution of ...nome. "The human genome is a mosaic of these 17 ancestral pieces constructed by two rounds of duplication, f...

Genetic mutation linked to walking on all 4s

...l to the proper functioning of the cerebellum during development. Although the families lived in isolated villages 200-300 km apart and reported no ancestral relationships, the scientists expected to find a single genetic mutation implicated in the condition. They were surprised to find that this was not t...

Geneticists at the American Museum of Natural History trace the evolution of St. Louis encephalitis

...o allowed Perkins and colleagues to trace the evolutionary path of the Flavivirus virus. They determined that the older, less derived strains, or more ancestral strains, are from South America. The North American and Haitian strains were passed from common bird hosts such as finches, robins, blue jays, and dov...

Your brain on Krispy Kremes

...ins didn't register much interest. But after the fast, two areas of the brain leaped into action upon seeing the donuts. First, the limbic brain -- an ancestral part of the brain present in all animals from snakes to frogs to humans -- lit up like fireworks. "That part of the brain is able to detect what i...
ancestral in Medical Technology

Gene Hunters Fine-Tune Marker for Common Obesity Gene

... - In Children's DNA, a Hint of a Mutation's ancestral African Origin - PHILADELPHIA, March 12 /PRNewswire-USNewswire/ -- Genomics researchers, seeking to replicate another group's discovery of an impo...
ancestral in Medical Products

Dermajuvenate "Quigong Machine

Description:...actice, but in these pressured times, the Dermajuvenate machine is a sensible alternative. It is, after all, a modern marvel imbued with 5000 years of ancestral wisdom....
Company:Spa De Soleil
ancestral in Biological News

Native Americans descended from a single ancestral group, DNA study confirms

For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral Asian population or a number of different populations. Now, after painstakingly compari...

Thumbs up -- a tiny ancestral remnant lends developmental edge to humans

WALNUT CREEK, Calif. Subtle genetic changes that confer an evolutionary advantage upon a species, such as the dexterity characteristic of the human hand, while difficult to detect and even harder to reproduce in a model system, have nevertheless generated keen interest amongst evolutionary biologi...

Clues to ancestral origin of placenta emerge in Stanford study

STANFORD, Calif. - Researchers at the Stanford University School of Medicine have uncovered the first clues about the ancient origins of a mother's intricate lifeline to her unborn baby, the placenta, which delivers oxygen and nutrients critical to the baby's health. The evidence suggests the p...

Genetic ancestral testing cannot deliver on its promise, study warns

Berkeley -- For many Americans, the potential to track one's DNA to a specific country, region or tribe with a take-home kit is highly alluring. But while the popularity of genetic ancestry testing is rising - particularly among African Americans - the technology is flawed and could spawn unwelcom...

Ancient ape ruled out of man's ancestral line

Ancient remains, once thought to be a key link in the evolution of mankind, have now been shown to be 400,000 years too young to be a part of man’s family tree. The remains of the apeman, dubbed Little Foot, were discovered in a cave complex at Sterkfontein by a local South African team in 1997. ...

Lactose intolerance linked to ancestral environment

Got milk? Many people couldn't care less because they can't digest it. A new Cornell University study finds that it is primarily people whose ancestors came from places where dairy herds could be raised safely and economically, such as in Europe, who have developed the ability to digest milk. On ...

Retrovirus struck ancestors of chimpanzees and gorillas millions of years ago, but did not affect ancestral humans

The ancestors of chimpanzees and gorillas were infected with a deadly retrovirus about three to four million years ago, but there is no evidence it infected ancestors of modern-day humans, according to research by genome scientists. The virus struck after humans had split off the evolutionary tree ...

Life on Earth came from other planets

...on they would encounter; and the crash landing onto the surface of a planet. Obviously, they would not have evolved these capabilities if their entire ancestral and genetic history had been confined to Earth and the conditions of this world. Microbes are preadapted for traveling through space and they inherite...

Humans related to orangutans, not chimps, says new Pitt, Buffalo Museum of Science study

...cts the expectation generated by DNA analysis that ancestral humans should have chimpanzee similarities, Schwar...yas, Schwartz and Grehan write, proposing that the ancestral dental hominoid lived and roamed throughout this v...her. Schwartz and Grehan compare this theory of ancestral distribution with one designed to accommodate a pr...

Indigenous peoples at world summit to share climate change observations, coping techniques

...pact of climate change on Indigenous Peoples will be particularly severe because most practice subsistence lifestyles and share a deep connection with ancestral lands. Says Prof. Oliver-Smith: "Climate change will make things significantly worse for people with difficult lives already due to discrimination,...
ancestral in Biological Technology

International science consortium publishes analysis of domestic cattle genome sequence

...ne cattle found in India, South and West Asia and East Africa. Generally, the bovine HapMap indicates that present day cattle came from a diverse ancestral population from Africa, Asia and Euroupe, that has undergone a recent rapid decrease in population size, probably due to domestication. Researchers ca...

African Ancestry, Educators, Identity Experts Launch DNA Education Project during Historic Black History Month; 7th Graders Score High on Ultimate Self Test

...ning and achievement motivation. Psychological research indicates that identity is one of the most important aspects of human development and knowing ancestral origins is an important aspect of a person's identity construction/development. "Engaging students in this interdisciplinary education project c...

MyHeritage And Family Tree DNA Partner To Help People Trace Family History Using DNA

... DNA screening technology, among other things, can reveal Native American, African or Jewish descent on paternal or maternal lines, as well as uncover ancestral information for those who were adopted. Through a range of tests, users can obtain information on recent and historical origins, including a migration...

Genes as Time Machines

...ted appropriately to survive," said Dr. Gaucher. "Although the concept of ancestral gene resurrection was proposed more than forty years ago, the development of efficient gene synthesis has only recently enabled the creation of the ancestral genes required for a study like this" said Dr. Sridhar Govindarajan, co-aut...

Researchers underscore limitations of genetic ancestry tests

... Others are searching for a connection to specific groups or places in Eurasia or Africa. Many African Americans hope the tests will help them trace ancestral links lost during the transatlantic slave trade. Other Americans have taken the tests in hope of obtaining Native American tribal affiliation or to c...
ancestral in Biological Definition

Archaea

...ities are uncertain. Woese argued that the bacteria, archaea, and eukaryotes each represent a primary line of descent that diverged early on from an ancestral progenote with poorly developed genetic machinery. This hypothesis is reflected in the name Archaea, from the Greek archae or ancient. Later he ...

Biology

...nisms is said to have common descent if they have a common ancestor . All existing organisms on Earth are descended from a common ancestor or ancestral gene pool . This "last universal common ancestor, that is, the most recent common ancestor of all organisms, is believed to have appeared about 3.5...

Chloroplast

...eria . In green plants chloroplasts are surrounded by two lipid bilayer membranes , now thought to correspond to the outer and inner membranes of the ancestral cyanobacterium. The genome is considerably reduced compared to that of free-living cyanobacteria, but the parts that are still present show clear ...

Cladistics

...by the common ancestor of a group is described as ancestral , and one that evolved later is comparatively der...A monophyletic group is a clade, comprising an ancestral form and all of its descendants, and so forming on...a excludes birds even though they evolved from the ancestral reptile. Similarly, the traditional Invertebrates...

Common descent

...ses that all organisms on Earth are descended from a common ancestor or ancestral gene pool. A theory of universal common descent based on evolutionary ...able for its consistency with recent ideas about there having been a single ancestral "genetic pool". More recently, scientists such as Francis Crick have po...

Ernst Haeckel

... on radiolaria , most of the speculative concepts that he championed are now seen as incorrect. For example, Haeckel described and named hypothetical ancestral micro-organisms that have not been found and almost certainly did not exist. His concept of recapitulation has been disproven. Haeckel did not support...

Evolution

...e a common ancestor. In biology , the theory of universal common descent proposes that all organisms on Earth are descended from a common ancestor or ancestral gene pool. Evidence for common descent may be found in traits shared between all living organisms. In Darwin's day, the evidence of shared traits wa...

Evolutionary developmental biology

... evolution of development ) is a field of biology that compares the developmental processes of different animals in an attempt to determine the ancestral relationship between organisms and how developmental processes evolved. The discovery of genes regulating development in model organisms allowe...

Gamete

... same size. Anisogamy or heterogamy is the condition where females and males produce gametes of different sizes. Isogamy is considered to be the ancestral condition, the evolution of gametes of unequal size is a current area of evolutionary research. Reference Randerson, J.P., and Hurst, L.D. 200...

Fungus

...cota , or the Fungi imperfecti , since the means of sexual reproduction was the primary means of classifying fungi, but are now classified with their ancestral group. Except among the chytrids, where spores are propelled by a posterior flagellum , all fungal spores are non-motile. They develop into new m...
ancestral in Biological Dictionary

Revertant

...rmation including symptoms, causes, diseases, symptoms, treatments, and other medical ... Revertant : In microbial genetics, a mutant that has ... ancestral RNA-sequence cache may restore genetic events in revertants. ... The frequency with which these ' revertant ' plants are recovered varies, but is ... ...

Pons

...r watch instantly on your PC or Netflix ready device. Free shipping both... The Pons Family dedication to the olives originated in 1945, from the ancestral ... CASA PONS USA, INC. 66 Palmer Avenue, Suite 32. Bronxville, NY 10708 U.S.A. ... Set in a tranquil setting, near the city of Girona, the Mas ...

Monoclonal

... of a single parent cell. Given almost any substance, it is possible... Monoclonal cells are defined as a group of cells produced from a single ancestral cell by repeated cellular replication. Thus they can be said to form a single "clone". The process of replication can occur in vivo, or ...

Marsupials

...m. Books|Non-Fiction|English |Hardcover|Cambridge Univ Pr|Ian D. Hume|Chris R. Dickman|PATRICIA ARMATI Marsupials Books Marsupials evolved from ancestral therian mammals (which give birth to live ... North American marsupials probably expanded to South America, Europe and the ... Well-known mars...

Homoplasy

...sy and the Evolutionary Process, pp. 67-89, M. J. Sanderson and L. Hufford (eds. ... Abstract.- We evaluated the potential effects of homoplasy , ancestral polymorphism, and hybridization as obstacles to resolving phylogenetic relationships within ... The level of homoplasy observed here appears to...

Gene cluster

...ch ... Determining cluster significance under general models of gene family size is ... 1.— Evolution of a hypothetical gene cluster : (a) ancestral genome. ... A phylogenomic gene cluster resource: the Phylogenetically Inferred Groups ... To ensure that each gene is placed in its optimal ...

Evolutionary tree

...ict clades. ... phylogenetic tree Diagram showing the evolutionary interrelations of a group of organisms that usually originated from a shared ancestral form The study of human genetic diversity has added a new layer of evidence to the story of how human beings evolved and migrated on Earth. M...

Developmental biology

...mental biology is a field of biology that compares the developmental processes of different animals and plants in an attempt to determine the ancestral relationship between organisms and how developmental processes evolved. It addresses the origin... A site dedicated to education in the field, ...

Degeneracy

... Degeneracy , from the Latin de-generare "to depart from its kind or genus, to fall from its proper or ancestral quality" can refer to: Degenerate matter is matter which has such extraordinarily high density that the dominant contribution to its pressur...

Common descent

...hey have a common ancestor. In modern biology, it is generally accepted that all living organisms on Earth are descended from a common ancestor or ancestral gene pool. The wide range of evidence of common descent of living things strongly indicates the occurrence of evolution and provides a wealth...
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(Date:4/18/2014)... A new medical-testing device is being prepped to ... could improve diagnosis of certain diseases in remote ... a series of investigations aboard the International Space ... uses the space-tested concept of capillary flow to ... , David Kelso, Ph.D., a researcher at Northwestern ...
(Date:4/18/2014)... did it make you feel? According to psychologists, remembering ... as how sad you were or how embarrassed you ... can,t stop thinking about it. , When these ... the memories, rather than how you felt, is a ... effects of these memories, a new study suggests. , ...
(Date:4/18/2014)... French . ... regenerative medicine. A team led by Ludwik Leibler from ... and Didier Letourneur from the Laboratoire Recherche Vasculaire Translationnelle ... that the principle of adhesion by aqueous solutions of ... organs and tissues. This easy-to-use gluing method has been ...
(Date:4/17/2014)... variant specifically associated with the risk of a ... cent of all breast cancer cases. , The ... called invasive lobular carcinoma, gives researchers important clues ... of breast cancer, which can be missed through ... the journal PloS Genetics , was co-led ...
(Date:4/17/2014)... April issue of Experimental Biology and Medicine ... Rex Gaskins and Paul Kenis in the Institute ... the University of Illinois Urbana-Champaign describe their recent ... underlie a variety of cell functions including energy ... crucial roles in regulating normal cellular behavior, redox ...
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(Date:4/17/2014)... One day about eight years ago, Katia Silvera ... and her father were on a field trip in a ... orchid they had never seen before. , Unable to identify ... The orchid turned out to be an unnamed species. ... silverarum . , "Lophiaris" is the genus name, comprising about ...
(Date:4/17/2014)... Several parasites and pathogens that devastate honeybees in Europe, ... Africa, but do not appear to be impacting native ... team of researchers., The invasive pests include including ... East African honeybees appear to be resilient to these ... used to control pests in Europe, Asia and the ...
(Date:4/17/2014)... such as heart disease, epilepsy and pain, making them ... is still much scientists do not know about the ... into the structure of sodium channels and, specifically, one ... responsible for ,fine-tuning, the activity of the channel. The ... the Journal of Biological Chemistry . , Nerves ...
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