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DNA Structure and Replication: Crash Course Biology #10 …

Posted: Published on May 25th, 2015

Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCou... Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashC... Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse References for this episode can be found in the Google document here: http://dft.ba/-2hCl 1:41 link to Biological Molecules http://www.youtube.com/watch?v=H8WJ2K... Table of Contents: 1) Nucleic Acids 1:30 2) DNA -A) Polymers 1:53 -B) Three Ingredients 2:12 -C) Base Pairs 3:45 -D) Base Sequences 4:13 3) Pop Quiz 5:07 4) RNA 5:36 -A) Three Differences from DNA 5:43 5) Biolography 6:16 6) Replication 8:49 -A) Helicase and Unzipping 9:22 -B) Leading Strand 9:38 -C) DNA Polymerase 10:08 -D) RNA Primase 10:24 -E) Lagging Strand 10:46 -F) Okazaki Fragments 11:07 -F) DNA Ligase 11:47 DNA, deoxyribonucleic acid, chromosome, nucleic acid, ribonucleic acid, RNA, polymer, nucleotide, double helix, nucleotide base, base pair, base sequence, friedrich miescher, rosalind franklin, replication, helicase, leading strand, lagging strand, rna primase, dna polymerase, okazaki fragment Support CrashCourse on Subbable: http://subbable.com/crashcourse Excerpt from: DNA Structure and Replication: Crash Course Biology #10 ... … Continue reading →

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Cerebral Palsy Types and Causes – WebMD

Posted: Published on May 23rd, 2015

What Is Cerebral Palsy? Cerebral palsy (CP) is a broad term used to describe a group of chronic "palsies" -- disorders that impair control of movement due to damage to the developing brain. CP usually develops by age 2 or 3 and is a nonprogressive brain disorder, meaning the brain damage does not continue to worsen throughout life. However, the symptoms due to the brain damage often change over time -- sometimes getting better and sometimes getting worse. CP is one of the most common causes of chronic childhood disability. About 10,000 infants are diagnosed with CP and up to 1,500 preschoolers in the U.S. are recognized as having it each year. The United Cerebral Palsy Association estimates that more than 764,000 Americans have CP. Between 35% and 50% of all children with CP will have an accompanying seizure disorder and some level of mental retardation. They also may have learning disabilities and vision, speech, hearing, or language problems. Much remains unknown about the disorder's causes, but evidence supports theories that infections, birth injuries, and poor oxygen supply to the brain before, during, and immediately after birth result are common factors. Premature infants are particularly vulnerable. Severe illness (such as … Continue reading →

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What is Ulcerative Colitis? – About.com Health

Posted: Published on May 23rd, 2015

IBD does tend to run in families, but most people with ulcerative colitis do not have a family member with the disease. Photo photostock Updated January 05, 2015. Written or reviewed by a board-certified physician. See About.com's Medical Review Board. Ulcerative colitis is a chronic disease that causes inflammation in the rectum, colon (large intestine), and, infrequently, the last part of the small intestine (ileum). The inflammation affects the inner lining of the colon, causing small sores, or ulcers. Ulcerative colitis, along with a similar condition known as Crohn's disease, are collectively called inflammatory bowel disease (IBD). Below, find the most important information about ulcerative colitis and links to more in-depth coverage on each topic. It is thought that IBD may be an autoimmune disease, and one theory about the cause is that it could be a result of an allergic response. Another possibility is that IBD may be caused by some combination of environmental factors. The actual cause of IBD could be a result of one or more of these theories, or there may still be a cause that research hasn't uncovered. Blood tests can also offer helpful information about the status of IBD, especially the red blood cell … Continue reading →

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Glimmers of Hope for Progressive MS: Human Stem Cell Trial …

Posted: Published on May 22nd, 2015

Progressive multiple sclerosis is a particularly horrendous and intractable illness. Unlike the relapsing remitting form of the disease, for which there are currently 12 approved treatment options (however imperfect these may be), there is tragically little available for progressive MS patients (one very flawed treatment option for SPMS and none for PPMS). At the recent American Academy of Neurology meetings, held last week in Washington DC, some rays of hope for progressive MS finally shone through, among them studies done on honest-to-goodness human progressive MS patients as opposed to those done on mice or in test tubes that show particular promise. As Ive written about extensively (click here ), the Tisch MS Research Center of New York is currently conducting the only FDA approved regenerative human stem cell trial on MS patients in the United States. Yes, this is the very same study that the National Multiple Sclerosis Society has repeatedly refused to fund (click here). Though this phase 1 trial is not yet complete, interim results were released at the AAN meeting, and they look impressive. The Tisch Center utilizes a unique approach to using stem cells to treat MS, quite unlike the techniques used in previous regenerative stem … Continue reading →

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DNA Extraction – Learn Genetics

Posted: Published on May 21st, 2015

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. Javascript is required to view this content. 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) Visit link: DNA Extraction - Learn Genetics … Continue reading →

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Physicians and Staff – East Valley Cardiology, Ltd

Posted: Published on May 21st, 2015

Dr. James F. Ganem was born in Louisville, Kentucky and raised in Phoenix, Arizona, attending Camelback High School and graduating from the University of Arizona in 1980.Medical training began at the University of Louisville, School of Medicine where he graduated in 1985.Training completed following Medical School:Internship, Carney Hospital, Boston, MA,Residency, Maricopa Medical Center, Phoenix, AZ,Cardiology Fellowship:Good Samaritan Medical Center, Phoenix, AZ,Veterans Administration Medical Center, Phoenix,AZ. Dr. Ganem founded East Valley Cardiology in 1990. He served as the Medical Director of the Cardiac Cath Lab at Banner Desert Medical Center from 2006-2013.He is board certified in Internal Medicine, Cardiology, Interventional Cardiology and Echocardiography. In 2014, Dr. Ganem was selected as a "Top Doc" for cardiovascular disease by PHOENIX Magazine. Daniel Einhorn, DO He is Board certified in Cardiology. He joined East Valley Cardiology in September 2011.He has served as Chairman of Internal Medicine, Chief of Cardiology and Director of Cardiac Catheterization Laboratories at various Arizona hospitals.He participates in research and development studies/trials for various pharmaceutical companies.He has received many teaching awards for his participation in Residency Training Programs. Ghassan Fraij, MD Please welcome Dr. Ghassan Fraij to East Valley Cardiology. Upon earning his medical degree at the University of Oklahoma, Dr. … Continue reading →

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SDSC Biology Workbench

Posted: Published on May 21st, 2015

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. … Continue reading →

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Ideas, Inventions And Innovations

Posted: Published on May 21st, 2015

An array of liquid crystal microlenses self-assemble around a central pillar. These lenses produce sets of images with different focal lengths, a property that could be used for three-dimensional imaging. They are also sensitive to the polarization of light, one of the qualities that are thought to help bees navigate their environments. Credit:University of Pennsylvania These lenses produce sets of images with different focal lengths, a property that could be used for three-dimensional imaging. They are also sensitive to the polarization of light, one of the qualities that are thought to help bees navigate their environments. The study was led by Francesca Serra and Mohamed Amine Gharbi, postdoctoral researchers in the Department of Physics and Astronomy in Penn's School of Arts and Sciences, along with Kathleen Stebe, the School of Engineering and Applied Science's deputy dean for research and a professor in Chemical and Biomolecular Engineering; Randall Kamien, professor in Physics and Astronomy; and Shu Yang, professor in Engineering's departments of Materials Science and Engineering and Chemical and Biomolecular Engineering. Yimin Luo, Iris Liu and Nathan Bade, members of Stebe's lab, also contributed to the study. It was published in Advanced Optical Materials. Previous work by the group had shown … Continue reading →

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Mesenchymal Stem Cell Therapy in Diabetes Mellitus …

Posted: Published on May 17th, 2015

J Nucleic Acids. 2013; 2013: 194858. 1Zewail University of Science and Technology, 6th of October City, Giza 12588, Egypt 2Urology and Nephrology Center, Mansoura 35516, Egypt Academic Editor: Sherif F. El-Khamisy Received 2013 Mar 13; Accepted 2013 Apr 18. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Advanced type 2 diabetes mellitus is associated with significant morbidity and mortality due to cardiovascular, nervous, and renal complications. Attempts to cure diabetes mellitus using islet transplantation have been successful in providing a source for insulin secreting cells. However, limited donors, graft rejection, the need for continued immune suppression, and exhaustion of the donor cell pool prompted the search for a more sustained source of insulin secreting cells. Stem cell therapy is a promising alternative for islet transplantation in type 2 diabetic patients who fail to control hyperglycemia even with insulin injection. Autologous stem cell transplantation may provide the best outcome for those patients, since autologous cells are readily available and do not entail prolonged hospital stays or sustained immunotoxic therapy. Among autologous adult stem cells, mesenchymal stem cells (MSCs) therapy … Continue reading →

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Pain Management | Chronic Pain Relief | Injury Treatment

Posted: Published on May 15th, 2015

Thecervical spine is the thinnest and most flexible part of the human spine. It is tasked with supporting the weight of the head in the upright position while allowing turning in multiple planes looking left, right, up, down and behind. The cervical spineprotects the brain stem and spinal cord; is directly behindtheesophagus and trachea, and containstwo important blood vessels on either side that bring blood toyour brain. Last but not least, the cervical spinehouses thenerves that control your arms and hands. Given all these vital functions, it is wise to take good care of your cervical spine in a proactive way. The cervical spine is naturally designed to curve, where the apex is at about the level of the Adams apple. This curve behaves much like a spring in a cars suspension; or the slight upwards curve you see in any bridge design. Long ago, architects discovered that the load capacity of bridges could be dramatically increased simply by integrating curves or arcs into the design. Like a neck curve, a bridge curve or arcdistributes weight over a greater area so that gravity cannot concentrate over one small area and cause structural failure. If the neck curve helps distribute the … Continue reading →

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