Nutrition & Holistic Health School Online | Institute for …

May 22, 2015 By: admin Category: Nutrition

The worlds largest nutrition school and certification program, empowering people to transform the world. Used by over 100,000 students and graduates in over 100 …

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Nutrition & Holistic Health School Online | Institute for …

DNA Extraction – Learn Genetics

May 22, 2015 By: heissegiohoft Category: DNA

DNA is extracted from human cells for a variety of reasons. With a pure sample of DNA you can test a newborn for a genetic disease, analyze forensic evidence, or study a gene involved in cancer. Try this virtual laboratory to perform a cheek swab and extract DNA from human cells.

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Supported by a Science Education Partnership Award (SEPA) Grant No. R25RR016291 from the National Center for Research Resources, a component of the NIH. The contents provided here are solely the responsibility of the authors and do not necessarily represent the official views of NIH.

APA format: Genetic Science Learning Center (2014, June 22) DNA Extraction. Learn.Genetics. Retrieved May 22, 2015, from http://learn.genetics.utah.edu/content/labs/extraction/ MLA format: Genetic Science Learning Center. “DNA Extraction.” Learn.Genetics 22 May 2015 Chicago format: Genetic Science Learning Center, “DNA Extraction,” Learn.Genetics, 22 June 2014, (22 May 2015)

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DNA Extraction – Learn Genetics

SDSC Biology Workbench

May 22, 2015 By: stoommica Category: Biology

The Biology WorkBench is a web-based tool for biologists. The WorkBench allows biologists to search many popular protein and nucleic acid sequence databases. Database searching is integrated with access to a wide variety of analysis and modeling tools, all within a point and click interface that eliminates file format compatibility problems.

First time users: please register for a free account.

Forgotten Pasword: we’ve noticed that most people that forget their password are actually using the incorrect user name. Our user names are case sensitive, so “JohnDoe”, “johndoe”, and “JOHNDOE” are all different names. If you still cannot log in, there are two ways you can get at your old data, once we verify you own the account in question. One option is for you to register for a new user name, and we can transfer the data from your old account to your new account once you mail us your old and new user names. The other option is for us to remove the password to your old account, which allows you to register for it again – your old data should show up once you log in again. Please mail bwbhelp@sdsc.edu and let us know which option you prefer.

The Biology Student Workbench group at the University of Illinois National Center for Supercomputing Applications has developed a number of lessons which use the Biology Workbench, as well as a How To tutorial. Also, we have written a Frequently Asked Questions document for our users, and a list of recent updates. If these documents do not help you with your problem, please send a message to bwbhelp@sdsc.edu .

Suggested Web Browser: the Biology Workbench was originally developed for Netscape Communicator or Navigator, up through version 4.7x. Microsoft Internet Explorer (especially older versions) can be unpredictable when loading the Biology Workbench, but the latest versions of Explorer seem to work fine. Because we are unable to force Internet Explorer to open seconary windows with our software, showing database records and reading help pages can be a bit clumsy. Nonetheless, most Biology Workbench operations *should* work within Internet Explorer, Firefox, or other popular browsers.

Some people notice browser-related problems that go away when one clears the disk cache, and turning off the disk cache altogether when using the Biology Workbench might be a good idea. Also, your memory cache should be set as high as comfortable, as some of our pages can take up quite a bit of space in your browser. We suggest a minimum value of 10 megabytes for your memory cache, if possible.

Structure Viewing: PDB structures can be viewed for PDBFinder records that are returned from a database search. One way to do this is to use the Rasmol program. The Chime plugin is another option for viewing structures on Windows and Macintosh machines, and we may eventually provide a Java-based structure viewer. For molecules with PDB structures, we also provide links to the PDB Structure Explorer page for that particule molecule, and to the Protein Explorer display for that particule molecule.

For more information on the research group that developed the Biology Workbench, please visit the home page for the Bioinformatics and Computational Biology group in the Deparment of Bioengineering at University of California, San Diego.

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SDSC Biology Workbench

Stem Cells, Skin Care and Dr Newman | Skin Care

May 14, 2015 By: lokkol Category: Skin Stem Cells

Stem cells are special cells that can turn into any kind of cells in the body. They serve as a repair system for the body. There are two main types of human stem cells: embryonic stem cells and adult stem cells.

Embryonic stem cells are cells that come from an unborn baby (embryo). Those are NOT the cells that are used for this product.LUMINESCEformulation uses technology derived from the study of Adult Stem Cells.

Stem cells communicate with tissue cells to induce repair. They produce many different growth factors and “communication” chemicals to do this.Dr Nathan Newmanhas been able to take stem cells in the lab, and separate them from the solution that holds the growth factors. This media is the foundation of theLUMINESCEproduct.

What is the relationship between growth factors and the stem cell technology?

The patent-pending technology ofLUMINESCEprovides for the delivery of key growth factors found in natural skin. As we age, the production of these growth factors within skin is reduced, and leads to wrinkling and thinning of the skin. By re-introducing these factors through the daily application ofLUMINESCE, damaged skin cells may be repaired, and skin tissue re-generated.

Stem cells are cells that have the ability to grow into any kind of cell in the body, and they rely on special signals to tell them what cells they will ultimately become. If you know the stem cell language, then you could communicate to the cells.

In this way, you could have stem cells that become new young skin cells, rebuild collagen, and deliver a new younger looking skin.

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Stem Cells, Skin Care and Dr Newman | Skin Care

American Journal of Pathology, The

May 13, 2015 By: stoommica Category: Pathology

The American Journal of Pathology, official journal of the American Society for Investigative Pathology (ASIP) seeks to publish high-quality, original papers on the …

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American Journal of Pathology, The

Potential of Stem Cells for Skin Regeneration Following Burns

May 10, 2015 By: lokkol Category: Skin Stem Cells

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Potential of Stem Cells for Skin Regeneration Following Burns

Lifeline Stem Cell Skin Care | Lifeline Skin Care Coupon …

May 10, 2015 By: admin Category: Skin Stem Cells

Lifeline Skin Care is stem cell skin care — the only skin care products in the world based on non-embryonic Human Stem Cell Extracts. These extracts from highly-potent stem cells — the same stem cells active early in life — will stimulate your skins own abilities to repair itself and create smooth, beautiful skin. Non-embryonic stem cells means no embryos are created or destroyed.

Stem Cell Extracts Help New Skin Begin Lifeline stem cell skin care uniquely helps your skin build millions of new, young, healthy skin cells. You restore volume and fullness, you fill in lines around the eyes and mouth, and help reverse the damage caused by the sun’s UV rays. It’s literally “out with the old skin cells, in with the new, young, healthy skin cells.”

What Specific Results Does Lifeline Provide? Stem cells are special cells that go to work whenever your skin needs to repair itself. But they become less potent with age. Lifeline Skin Care has discovered a patented, ethical way to take extracts from non-embryonic human stem cells, which then help create millions of new skin cells that rejuvenate skin. An independent clinical study showed the following results:

improve skin hydration by 93% increase skin elasticity by 73% decrease wrinkles appearance by 67% improved skin tone and brightness by 63%

Profits from Lifeline Skin Care are applied to fund stem cell research for curing degenerative diseases like diabetes and Parkinson’s Disease, diseases of the liver, and blinding diseases of the eye.

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Lifeline Stem Cell Skin Care | Lifeline Skin Care Coupon …

Pathologists’ Assistant – Department of Pathology and …

May 10, 2015 By: stoommica Category: Pathology

Effective 11-24-2014: the IU pathologists’ assistant program is pleased to announce that curricular issues have been resolved, and applications for entry into the program in Aug 2015 are now being accepted!

This M.S. track focuses on the education of pathologists’ assistants. Pathologists’ assistants provide service in anatomic pathology under the direction and supervision of a qualified anatomic pathologist, with responsibilities including gross surgical pathology, frozen section preparation, and autopsy pathology. This program is not research-based, and no thesis is required. The program is designed to serve individuals holding baccalaureate degrees in various science-related fields (clinical laboratory science, cytotechnology, biology, chemistry, etc.) who have an interest in pathology, particularly the anatomic aspect of pathology.

Pathologists’ Assistant Career Responsibilities

The Pathologists’ Assistant is qualified by academic and practical training to provide the following services and others under the direction and supervision of a pathologist: Preparation, gross description, and dissection of human tissue surgical specimens including the following: obtaining clinical history, describing gross anatomic features, dissecting surgical specimens, preparing tissues for histologic processing, and photographing all pertinent gross specimens and microscopic slides

Preparation of human postmortem examinations including the following: conferring with the attending pathologists to identify any special techniques and procedures to be utilized in the completion of the postmortem examination, performing postmortem examinations, selecting, preparing and submitting appropriate gross tissue sections, performing special procedures such as coronary artery perfusion, central nervous system perfusion, enucleation, inner ear bone dissection, spinal cord removal, etc., and organizing information pertinent to the preparation of the preliminary summarization of the clinical history.

Freezing tissue removed at surgery in preparation for intra-operative examination by a pathologist.

Performing such administrative, budgetary, supervisory, teaching, and other duties as may be assigned.

Mission Statement

The mission of the M.S. Pathologists= Assistant track within the graduate program in the Department of Pathology and Laboratory Medicine at the Indiana University School of Medicine is to provide quality education in the knowledge, skills, and professional attitudes of pathologists= assistants in order to prepare graduates who have entry-level competency to practice as a pathologists= assistant.

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Pathologists’ Assistant – Department of Pathology and …

Inbreeding – Wikipedia, the free encyclopedia

May 10, 2015 By: BoicepSip Category: Genetics

“Inbred” redirects here. For the 2011 British film, see Inbred (film).

Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically, in contrast to outcrossing, which refers to mating unrelated individuals.[1] By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from incestuous sexual relationships and consanguinity.

Inbreeding results in homozygosity, which can increase the chances of offspring being affected by recessive or deleterious traits.[2] This generally leads to a decreased biological fitness of a population[3][4] (called inbreeding depression), which is its ability to survive and reproduce. An individual who inherits such deleterious traits is referred to as inbred. The avoidance of such deleterious recessive alleles caused by inbreeding, via inbreeding avoidance mechanisms, is the main selective reason for outcrossing.[5][6] Crossbreeding between populations also often has positive effects on fitness-related traits.[7]

Inbreeding is a technique used in selective breeding. In livestock breeding, breeders may use inbreeding when, for example, trying to establish a new and desirable trait in the stock, but will need to watch for undesirable characteristics in offspring, which can then be eliminated through further selective breeding or culling. Inbreeding is used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.

Offspring of biologically related persons are subject to the possible impact of inbreeding, such as congenital birth defects. The chances of such disorders is increased the closer the relationship of the biological parents. (See coefficient of inbreeding.) This is because such pairings increase the proportion of homozygous zygotes in the offspring, in particular deleterious recessive alleles, which produce such disorders.[8] (See inbreeding depression.) Because most recessive alleles are rare in populations, it is unlikely that two unrelated marriage partners will both be carriers of the alleles. However, because close relatives share a large fraction of their alleles, the probability that any such deleterious allele is inherited from the common ancestor through both parents is increased dramatically. Contrary to common belief, inbreeding does not in itself alter allele frequencies, but rather increases the relative proportion of homozygotes to heterozygotes. However, because the increased proportion of deleterious homozygotes exposes the allele to natural selection, in the long run its frequency decreases more rapidly in inbred population. In the short term, incestuous reproduction is expected to produce increases in spontaneous abortions of zygotes, perinatal deaths, and postnatal offspring with birth defects.[9] The advantages of inbreeding may be the result of a tendency to preserve the structures of alleles interacting at different loci that have been adapted together by a common selective history.[10]

Malformations or harmful traits can stay within a population due to a high homozygosity rate and it will cause a population to become fixed for certain traits, like having too many bones in an area, like the vertebral column in wolves on Isle Royale or having cranial abnormalities in Northern elephant seals, where their cranial bone length in the lower mandibular tooth row has changed. Having a high homozygosity rate is bad for a population because it will unmask recessive deleterious alleles generated by mutations, reduce heterozygote advantage, and it is detrimental to the survival of small, endangered animal populations.[11] When there are deleterious recessive alleles in a population it can cause inbreeding depression. The authors think that it is possible that the severity of inbreeding depression can be diminished if natural selection can purge such alleles from populations during inbreeding.[12] If inbreeding depression can be diminished by natural selection than some traits, harmful or not, can be reduced and change the future outlook on a small, endangered populations.

There may also be other deleterious effects besides those caused by recessive diseases. Thus, similar immune systems may be more vulnerable to infectious diseases (see Major histocompatibility complex and sexual selection).[13]

Inbreeding history of the population should also be considered when discussing the variation in the severity of inbreeding depression between and within species. With persistent inbreeding, there is evidence that shows inbreeding depression becoming less severe. This is associated with the unmasking and eliminating of severely deleterious recessive alleles. It is not likely, though, that eliminating can be so complete that inbreeding depression is only a temporary phenomenon. Eliminating slightly deleterious mutations through inbreeding under moderate selection is not as effective. Fixation of alleles most likely occurs through Mullers Ratchet, when an asexual populations genomes accumulate deleterious mutations that are irreversible.[14]

Autosomal recessive disorders occur in individuals who have two copies of the gene for a particular recessive genetic mutation.[15] Except in certain rare circumstances, such as new mutations or uniparental disomy, both parents of an individual with such a disorder will be carriers of the gene. These carriers do not display any signs of the mutation and may be unaware that they carry the mutated gene. Since relatives share a higher proportion of their genes than do unrelated people, it is more likely that related parents will both be carriers of the same recessive gene, and therefore their children are at a higher risk of a genetic disorder. The extent to which the risk increases depends on the degree of genetic relationship between the parents: The risk is greater when the parents are close relatives and lower for relationships between more distant relatives, such as second cousins, though still greater than for the general population.[16] A study has provided the evidence for inbreeding depression on cognitive abilities among children, with high frequency of mental retardation among offspring in proportion to their increasing inbreeding coefficients.[17]

Children of parent-child or sibling-sibling unions are at increased risk compared to cousin-cousin unions.[18]

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Inbreeding – Wikipedia, the free encyclopedia

Journals – Current Biology Online

May 10, 2015 By: Walid Yassin Category: Biology

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Journals – Current Biology Online