Wednesday, May 19, 2010

Expert Assesment: Embryonic Stem Cell Research Does Too Much Good to Be Evil, Says Janet Rowley



-With the ban on embryonic stem cell research being removed, a key barrier to research and discovery has been broken.
- Stem cell research is a true moral dilemma, but the behind it science offers a way to bring something good from a flawed situation
-It is the parents choice whether or not to donate the embryo
-There are some sort of guide lines when preforming stem cell research.
-Scientists cooperate with ethnic groups as well as patients when dealing with stem cells
-Stem cells researched for the greater good of the human population. It is used so doctors can better understand certain diseases so they can help their patients in a more effective way.

Reflection: I thought this article was interesting for multiple reasons. There is no question that stem cells research is one of the most controversial aspects of science these days, and that makes learning about it all the more interesting. I think that this article focuses on all the good that stem cell research does for the world, but I also agree that since stem cell research is being used to help people, and hopefully save lives in the future, it does more good than bad. Of course I realize that some stem cells come from babies, but if the parents were going to have an abortion anyway isn't it okay for the parents to donate it to help the future? Those are just my thoughts though.


Link: http://www.usnews.com/articles/opinion/2009/03/23/embryonic-stem-cell-research-does-too-much-good-to-be-evil-says-janet-rowley.html

Video: http://www.youtube.com/watch?v=3Axkn8G18t8

Citation: Rowley, Janet. "Embryonic Stem Cell Research Does Too Much Good to Be Evil, Says Janet Rowley - US News and World Report." US News & World Report - Breaking News, World News, Business News, and America's Best Colleges - USNews.com. 3 Mar. 2009. Web. 20 May 2010. .

Related Articles:
-Leave Embryos Alone: Stem Cell Work Can Be Done Without Them, Says Tony Perkins: http://www.usnews.com/articles/opinion/2009/03/23/leave-embryos-alone-stem-cell-work-can-be-done-without-them-says-tony-perkins.html%20?s_cid=related-links:TOP

-Stem Cell Research: some pros and cons:
http://www.lifeissues.net/writers/irv/irv_19stemcellprocon.html


Bias: I thought that this article was a little bit bias because it only really talked about the positive that embryonic stem cells do, and not the negative. I myself am a little biased though because I feel I support stem cell research. At first when I read the article I didnt think that it was bias at all, but I now realize that the article may have been a bit bias. It wasn't bias to the point where is was criticizing other points of view though, just bias enough to ignore the negative in stem cell research.

Monday, May 17, 2010

When Plants Attract Bugs, It May Be Their Own Fault



-Initial research in greenhouses showed that Cajun Carmine had significantly less damage from thrips than Dazzler White.
-Thrips are very tiny, sliver-like insects that are native to northwestern North America. They feed on the plants' leaves and petals and transmit devastating plant viruses
-Thrips were choosing one side over the other 50-50. Because the thrips were choosing Cajun Carmine basically 50-50, choosing Dazzler White 64 percent of the time shows they were definitely choosing the plant [Dazzler White] over the purified air.
-When specific plant volatiles are identified as attractant or repellents to specific insect pests, these volatiles can then be used as selection factors in plant breeding programs or by producers seeking to limit insect damage

Reflection: I think that its interesting to know that certain plants attract bugs that help destroy them. When I was little my dad and I planted a tree in our back yard. Every once in a while I would go out there and see that some of the leaves on the tree had holes in them. I knew that this was the work of some insect, but I never knew why exactly it happened. Now I know that it might have been the tree's fault for attracting the bugs in the first place. This concept makes some sense but it leaves me wondering if natural selection would push the chemical attracting bugs in a certain direction.


Link: http://www.sciencedaily.com/releases/2010/05/100517144816.htm

Picture: http://z.about.com/d/landscaping/1/0/l/C/poison_sumac_plants.jpg

Citation: University of Illinois College of Agricultural, Consumer and Environmental Sciences. "When Plants Attract Bugs, It May Be Their Own Fault." ScienceDaily 17 May 2010. 17 May 2010 .

Bald Eagle Diet Shift Enhances Conservation, Study Finds



-Seabirds provided an abundant source of carrion for the local eagle population until the pesticide DDT wiped out the eagles in the 1960s.
- Since bald eagles are extremely opportunistic, they can quickly adapt to changes in the prey base of the diverse ecosystems they inhabit.
-Because there are no sheep on the islands today and the seabird populations are diminished, the researchers thought the introduced eagles could scavenge seal or seal lion carrion
-Atoms of elements such as carbon and nitrogen, which cycle through the food chain, come in different forms, or isotopes that have the same number of protons, but different numbers of neutrons. Scientists can distinguish them by the tiny differences in their masses.
-The researchers could determine the diets of bald eagles by analyzing the isotopes found in their remains.

I thought that the bald eagles ability to adapt to its environment and change its diet is pretty cool. The survival instinct it takes to live in the wild is a lot different than what it takes to live a civilized life. In biology class we talked about adaptation, and this is a great example of it. Nature forces a lot of species to adapt in order to survive, in fact now that I think about nature also forces us to evolve. With different diseases and viruses going around man kind is forced to create certain medicines and change the way we live. But in that sense we are in one way or another slowly conquering natural selection.


Link: http://www.sciencedaily.com/releases/2010/05/100503161231.htm

Picture: http://fatfinch.files.wordpress.com/2009/01/bald-eagle-head2.jpg

Citation: Carnegie Institution. "Bald Eagle Diet Shift Enhances Conservation, Study Finds." ScienceDaily 4 May 2010. 17 May 2010 .

Costs and Benefits of Testosterone in Birds



-Individual male birds can differ dramatically in their behavior determined by the different levels of testosterone in their body's.
-Testosterone and the behaviors it mediates may predict how well a male succeeds.
- An aggressive male may be more likely to obtain high-quality territories that attract females.
-Aggression might pose a survival risk, because aggressive males might be more likely to engage in costly fights.
-Researchers found strong relationships between testosterone and both reproduction and survival, demonstrating that natural selection is currently acting on testosterone production in this population of juncos.

Reflection: It is interesting to see how testosterone affects birds because we recently learned how it affects people in biology class. Now that i've read the article, I found that the hormone affects birds in pretty much the same way. But it is also interesting to know that natural selection is pushing birds towards more testosterone. I would think that there would be a balance in the testosterone levels of birds because too much testosterone is a bad thing and hinders a birds ability to survive. Maybe I'm wrong but this explains why some birds are extremely aggressive.


Link: http://www.sciencedaily.com/releases/2010/05/100513112753.htm

Picture: http://www.ornithology.com/images/BabyBirds_Miller_061705.jpg

Citation: University of Chicago Press Journals. "Costs and Benefits of Testosterone in Birds." ScienceDaily 13 May 2010. 17 May 2010 .

A Dog's Life: Relationships Between Dogs, Owners Fall Into Three Categories



-Dog's circumstances can change depending on their owner's life course and experiences.
-Dog ownership attitudes fell into three categories: Humanist, where dogs were highly valued and considered close companions, like pseudo people; protectionists might be vegetarians and they greatly valued animals in general, not just as pets; dominionists saw animals as separate and less important than people
-Distinct orientations toward animals were informed by multiple, competing cultural logics
-People learn how animals should be treated.

Reflection: At the very beginning of the year we learned about the concept of artificial selection. It is interesting to know that dogs are the way they are because we made them so. This kind of represents our dominance in nature. Different dogs are bread for different activities for human use. Some people use this as a reason to treat dogs a lot worse than people, because they see dogs as worse than people. People I think that is wrong, but that is because ( like the article stated) the way I was raised. In my house my dog is treated like part of our family. He eats around the same time as us, sleeps in a bed, and is frequently walked. I'm not really sure how dogs our treated in other parts of the world, but it would be interesting to see the difference.

Link: http://www.sciencedaily.com/releases/2009/08/090810025813.htm

Picture: http://puppydogweb.com/gallery/softcoatedwheatenterriers/softcoatedwheatenterrier_andrews.jpg

Citation: Indiana University. "A Dog's Life: Relationships Between Dogs, Owners Fall Into Three Categories." ScienceDaily 19 August 2009. 17 May 2010 .

Low Umbilical Cord pH at Birth Linked to Death and Brain Damage



-Low umbilical cord blood pH at birth is strongly associated with serious concequences, such as infant death
-Whether of not research to explore whether all babies should have their umbilical cord blood tested is needed or not
- When a baby is deprived of adequate oxygen during labor, the pH levels of blood in the umbilical cord drops.
- Doctors found that low arterial umbilical cord pH did in fact have a strong association with infant death and brain damage

Reflection: In biology class we learned about the miracle of life, specifically birth. But we did not really learn about some of the things that can go wrong during birth. This article talks about one of the complications that can cause brain damage in an infant or even death. Before reading the article I had no idea that if something was wrong with the umbilical cord that bad things could happen to a child. Although I knew that the umbilical cord gives the baby the nutrients it needs to survive it never crossed my mind that something could go wrong.


Link: http://www.sciencedaily.com/releases/2010/05/100513212431.htm

Picture: http://www.ohiohealth.com/mayo/images/image_popup/fl7_umbilicalcordatbirth.jpg

Citation: BMJ-British Medical Journal. "Low Umbilical Cord pH at Birth Linked to Death and Brain Damage." ScienceDaily 13 May 2010. 17 May 2010 .

Are Humans Still Evolving? Absolutely, Says A New Analysis Of A Long-Term Survey Of Human Health



-The idea that because medicine has been so good at reducing mortality rates, that means that natural selection is no longer operating in humans
- Humans are not exempt from natural selection. Humans are actually likely to evolve at roughly the same rates as other living things
-The changes may be slow and gradual, but the predicted rates of change are no different from those observed elsewhere in nature
- The results place humans in the medium-to-slow end of the range compared to the rates of other living things


Reflection: I think in one of my other articles I mentioned humans slowly overcoming natural selection. I guess I was wrong, nothing can beat natural selection. There will always be something in nature to put you in you're place, or make you the way you are. I don't know what the reason for this is but who does? Nature is an extremely mysterious thing, and there will always be unanswered question about the mystery of nature.

Link: http://www.sciencedaily.com/releases/2009/10/091019162933.htm

Picture: http://whosoeverdesires.files.wordpress.com/2009/07/human-evolution5.jpg

Citation: National Evolutionary Synthesis Center (NESCent). "Are Humans Still Evolving? Absolutely, Says A New Analysis Of A Long-Term Survey Of Human Health." ScienceDaily 20 October 2009. 17 May 2010

As Global Temperatures Rise, World's Lizards Are Disappearing: 20 Percent of All Lizard Species Could Be Extinct by 2080



-For many lizards, global climate change is a matter of life and death.
-Rising temperatures have driven 12 percent of the country's lizard populations to extinction.
-Scientists predict that a full 20 percent of all lizard species could be extinct by the year 2080.
-Studies in Mexico indicate that the temperatures in those regions have changed too rapidly for the lizards to keep pace.
-Lizards are far more susceptible to climate-warming extinction than previously thought because many species are already living right at the edge of their thermal limits, especially at low elevation and low latitude range limits.

Reflection: I think it sucks that different species are being affected by all the bad that we do in the world. The pollution and other ways we are destroying the ecosystem is ruining the lives of other animals. It's a shame that some people don't even realize the destruction we are doing to the world. It should be a way more talked about problem, as it concerns everyone and everything on the planet. We should all be very careful and try to minimize our bad impact on the world because one day it might come back to haunt us.

Link: http://www.sciencedaily.com/releases/2010/05/100513143447.htm

Picture: http://www.metalmorphosis.biz/decorative/lizards_geckos/images/lizards_double_thick_c.jpg

Citation: American Association for the Advancement of Science. "As Global Temperatures Rise, World's Lizards Are Disappearing: 20 Percent of All Lizard Species Could Be Extinct by 2080." ScienceDaily 13 May 2010. 17 May 2010 .

Mutations That Cause Parkinson's Disease Prevent Cells from Destroying Defective Mitochondria




- Mutations that cause Parkinson's disease prevent cells from destroying defective mitochondria
-Mitochondria are often dysfunctional in Parkinson's disease, but how Parkin stimulates mitophagy and whether the pathway goes wrong during pathogenesis is unknown
-Researchers found that cells expressing mutant forms of Parkin failed to clear their mitochondria after the organelles were damaged.
- Both pathways rely on microtubules, HDAC6, and p62,providing a common link between the two main features of the neurodegenerative disorder.
-The clearance of defective mitochondria is proven to be similar to the removal of damaged proteins.

Link: http://www.sciencedaily.com/releases/2010/05/100510121215.htm

Picture: http://www.topnews.in/health/files/Parkinsons-disease2.jpg

Citation: Rockefeller University Press. "Mutations That Cause Parkinson's Disease Prevent Cells from Destroying Defective Mitochondria." ScienceDaily 10 May 2010. 17 May 2010 .

New Hope Exists in Treating Inherited Disease by Suppressing DNA Mutations




-Scientists are getting progressively closer to producing drugs that fix the disrupted protein pathaway, drastically improving the treatment of genetic diseases
-The experimental drug Ataluren may help to treat some cystic fibrosis patients. Ataluren also holds promise in treating more than 2,400 different genetic disorders caused by nonsense mutations.
-the key consideration when treating a genetic disease with suppression therapy, is the fraction of the missing protein that must be restored to yield a therapeutic benefit
-An estimated one-third of gene defects responsible for human disease are thought to come from nonsense mutations.
-Ataluren is now being tested in humans for its effectiveness in treating Duchenne/Becker muscular dystrophy, cystic fibrosis, hemophilia A, hemophilia B and other conditions.

Reflection: This article was interesting but kind of hard to get. I had to re-read certain parts of this in order to fully understand the article. I think the just of it is about the experimental drugs Ataluren and how it helps re-build certain proteins that are not made correctly before child birth.

Link: http://www.sciencedaily.com/releases/2010/04/100426131435.htm

Picture: http://whyfiles.org/212elect_ID/images/prescription_bottle.jpg

Citation:Federation of American Societies for Experimental Biology. "New Hope Exists in Treating Inherited Disease by Suppressing DNA Mutations." ScienceDaily 26 April 2010. 17 May 2010 .

Sunday, May 16, 2010

Live Evolution Witnessed In Controlled Environment Of Microbial Predator And Prey








• Under certain conditions, certain prey become resistant to it’s predator.
• Eventually the predator itself evolves so that it can attack this new prey.
• Scientists tried to recreate this concept using bacterium and a liquid medium.
• After the experiments were over the scientists found that the predator was only able to adapt to get to one of the prey, and the other remained untouched.
• Whatever makes prey resistant and predators capable of attacking them again remains weakly understood and relatively unclear.


Reflection:
I thought that this article was pretty interesting, but it was kind of hard to understand because it was very complex. Finding an arms race on these news websites was a lot harder than I thought it would be. But eventually I found this one and I decided to stick with it. What’s good about this article is that it really paints a mental picture of what’s going on, even if sometimes the picture was unclear. Next time I do a “science in the news, I’m going to try and pick an article that is less sophisticated, so it will suit me better and be easier for me to understand.

Link: http://www.sciencedaily.com/releases/2009/03/090305150917.htm

Citation:CNRS (Délégation Paris Michel-Ange). "Live Evolution Witnessed In Controlled Environment Of Microbial Predator And Prey." ScienceDaily 10 March 2009. 16 May 2010 .

Picture:http://www.sciencedaily.com/images/2009/03/090305150917-thumb.jpg

Causes of Death in AIDS Patients


















- Of the 11876 deaths that occured,50% of the people who had HIV eventually went on to die of Aids
-New research shows that Antiretroviral Therapy (ART) continues to dramatically reduce rates of mortality from HIV infection in high-income countries.
-Because deaths from AIDS decline with time for patients on ART, non-AIDS-related deaths exceeded AIDS deaths after patients had been taking ART for approximately four years.
-A prominant killer in patients was cancer
-Results imply that the process of aging will become a dominant factor in HIV mortality in the next decade.

Reflection: I thought that this article was interesting. It teaches you certain things about HIV, which in turn makes you want to do anything you can to prevent yourself from getting it. If theres one thing I took away from this article it was that HIV is extremely dangerous because it attacks your immune system. With a weak immune system you body is extremely susceptible to other virus and loses its ability to defend itself. We touched upon this in Bio class but its important to learn more about certain STD's because knowledge is Power. The more you know about them the more likely you are to protect yourself from them.




Link:http://www.sciencedaily.com/releases/2010/04/100428101441.htm

Picture:http://www.hanci.com/app/webroot/files/World_Aids_Day_Ribbon.png

Citation: University of Bristol. "Causes of Death in AIDS Patients." ScienceDaily 29 April 2010. 16 May 2010 .

Modified Crops Reveal Hidden Cost Of Resistance



















• Cultivated squash is susceptible to a variety of viral diseases
• Ecologists worry there might be certain hidden costs associated with the modified crops.
• The researchers discovered that as the viral infection swept the fields containing both genetically modified and wild crops, the damage from cucumber beetles is greater on the genetically modified plants.
• The modified plants are therefore more susceptible to the fatal bacterial wilt disease.
• When both the bacterial and viral pathogens are present, the beetles tend to avoid the smaller viral infected plants and concentrate on the healthy transgenic plants.


Reflection
I chose this article because it reminded me a lot of what we watched in class today and all through last week. The whole controversy over the Hawaiian papaya was somewhat similar to this because that scientist faced adversity at first but he later overcame in and his genetically modified papayas might have a chance to save the multimillion dollar papaya farms in Hawaii. I think if these guys keep working on fixing there plant they can over come their problems too. You can do anything if you try.


Link: http://www.sciencedaily.com/releases/2009/09/090916153147.htm

Citation: Florida State University. "Single Missing Protein May Result In Down Syndrome And Other Human Chromosomal Birth Defects." ScienceDaily 17 September 2009. 16 May 2010 .

Picture: http://redgreenandblue.org/files/2008/11/cornfield.jpg

Single Missing Protein May Result In Down Syndrome And Other Human Chromosomal Birth Defects


















• The Florida State University found that when a key molecular player known as Pds5 goes missing, chromosomes fail to segregate and pair up properly, and birth defects such as Down syndrome can result.
• To produce a genetically balanced gamete, the cell must contend with two sets of chromosome pairs.
• During normal meiosis, the process of division that halves the number of chromosomes per cell, Pds5 regulates the pairing and synapsis (joining together) of 'mom and dad' homologs.
• Removing Pds5 during meiosis triggers a chromosomal catastrophe.


Reflection
I chose this article because in the 8th grade we learned a little bit about birth defects and chromosomal disorders. We just went over what they were but not how they happen. That was some I found out more about that by reading this article. I thought it was interesting to find out that one protein had such a big impact on the body and could cause something like Down syndrome. That kind of also has an in depth saying about the world. One person can have such a big impact on the world and everybody gets a chance to leave their mark.

Picture: http://thevibe.socialvibe.com/wp-content/uploads/2009/08/chromosome.jpg

Link: http://www.sciencedaily.com/releases/2009/09/090916153147.htm

Citation: Florida State University. "Single Missing Protein May Result In Down Syndrome And Other Human Chromosomal Birth Defects." ScienceDaily 17 September 2009. 16 May 2010 .

Butterfly Unlocks Evolution Secret

















• People/scientists have trouble figuring out why the planet is so full of speciation.
• Researchers studying a family of butterflies think they’ve witnessed a subtle process, which could be forcing a wedge between newly formed species. Through a process called “ Reinforcement” butterflies prevent closely related species from interbreeding, driving them further apart genetically and enforcing specialization.
• For speciation to occur, two branches of the same species must stop breeding with one another for long enough to grow apart genetically.
• The other mechanism that can theoretically divide a species is "reproductive isolation". This occurs when organisms are not separated physically, but "choose" not to breed with each other
• Scientist’s found that if closely related species of Butterflies are geographically separate, they tend to look quite similar. That is to say, they do not display a distinctive "team strip". But if similarly closely related species are living side-by-side, the researchers noticed, they frequently look strikingly different - their "teams" are clearly advertised.


Reflection
I chose this story because the title of the sounded interesting to me. Another reason I picked this article was because I didn’t think anyone body else would pick it. This article showed me that everyday we get closer to discovering the key secrets behind evolution. But no matter how close scientist get to discovery the true secrets of Evolution there will always be people that don’t believe in it. But it is still very important that scientists research and look into evolution so that people as a whole know as much as possible about the past.

Link:http://news.bbc.co.uk/2/hi/science/nature/4708459.stm

Picture: http://etc.usf.edu/clipart/3200/3236/butterfly_3_lg.gif

Citation: Kettlewell, Julianna. "Butterfly Unlocks Evolution Secret." BBC NEWS | News Front Page. BBC News, 24 July 2005. Web. 17 May 2010. .

Homo Heidelbergensis


















-The Homo Heidelbergensis are said to be direct ancestors of modern Homo Sapiens.
-Homo antecessor were likely a direct ancestor of Homo Sapiens living 750,000 years ago evolving into Homo Heidelbergensis appearing that have appeared in fossil record living roughly 600,000 to 250,000 years ago in various areas of Europe.
-The best evidence found for these hominids date between 400,000 and 500,000 years ago.
-Heidelbergensis stone tool technology was considerably close to that of the Acheulean tools used by Homo erectus
African Heidelbergensis the ancestor of humans while the European variety would be the ancestor of the Neanderthals.

Reflection
I thought that this article was interesting because it was about a different hominid that I have never heard about while in school. That is kind of the reason why I picked this article to read out of all other articles.
There isn’t really any special meaning behind this article, its pretty straight forward and to the point. It is kind of interesting to know we have a direct relative that lived over 250,000 years ago. I also find it a little bit weird that I have never heard about this type of hominid before. I mean I think when they teach you about the stone age in history class they should teach you about these hominids as well as other hominids instead of just Homo Habilis, Homo Erectus, Neanderthals, Australopithecus and so on. Anyway I’m glad I read this article it was very entertaining and some what different then other articles I’ve read

Link: http://www.sciencedaily.com/articles/h/homo_heidelbergensis.htm

Picture: http://www.bbc.co.uk/sn/prehistoric_life/tv_radio/wwcavemen/images/wwc_article_pop7.jpg

Citation: Wikepedia. "Homo Heidelbergensis." Science Daily: News & Articles in Science, Health, Environment & Technology. 9 May 2010. Web. 20 May 2010. .

Tuesday, May 4, 2010

Surgical Masks Provided Effective Protection of Health-Care Workers Against H1N1, Study Suggests















-It is proven from research that surgical masks, do in fact protect from the H1N1 virus.
-Workers in and around the hospital wearing surgical masks were less susceptible to the virus.
-The masks work as filters for germs and other pathogens.
-For some jobs it is policy to where masks while working.

This article was interesting to read mostly because I was so unsure about the topic. When the H1N1 virus first started being portrayed by the media as a huge epidemic a lot of people walked around wearing surgical masks. Usually when I saw someone walking around wearing surgical masks I found it kind of weird. But now i know that it actually helps. The next next time a big virus breaks out I might spread the word about how they actually work.

Link: http://www.sciencedaily.com/releases/2010/03/100325143055.htm

Picture: http://www.medanku.com/wp-content/uploads/2009/06/h1n1-swine-flu.jpg

Citation: Infectious Diseases Society of America. "Surgical Masks Provided Effective Protection of Health-Care Workers Against H1N1, Study Suggests." ScienceDaily 29 March 2010. 4 May 2010 /releases/2010/03/100325143055.htm>.

Monday, May 3, 2010

Brain Disease 'Resistance Gene' Evolves in Papua New Guinea Community; Could Offer Insights Into CJD




-Kuru passed down from mortuary feasts where mainly women and children consumed their dead ancestors as a sign of respect.
-The ceremonial practice was banned and stopped in the late 1900’s.
-In some populations of the eastern highlands there are people with a gene mutation that offers a high resistance to the disease that exists nowhere else in the world.
-Natural selection and variation in society help build a natural defense against the disease.


Reflection I chose this article because the title reminded me of what we saw in the movie “brain eaters” we saw in class the other day. This article gave me a better insight on kuru itself than watching the movie did. I find it kind of weird how the disease is passed on through cannibalism and I didn’t know that even existed in the world anymore. Learning about this disease and diseases in the same family really make you wonder what your putting in your body. No one is really protected from these disease and if you think about it, it is kind of scary.

Link: http://www.sciencedaily.com/releases/2009/11/091120091959.htm

Picture: http://www.sciencemuseum.org.uk/on-line/brain/images/1-1-1-3-1-4-0-0-0-0-0.jpg

Citation: Medical Research Council (UK). "Brain Disease 'Resistance Gene' Evolves in Papua New Guinea Community; Could Offer Insights Into CJD." ScienceDaily 21 November 2009. 19 May 2010 .

White Blood Cells Can Sprout 'Legs' And Move Like Millipedes




• The current opinion is that immune cells advance like inchworms, but new findings show that the rapid movement of the white blood cells is more like that of millipedes.
• Rather than sticking front and back, folding and extending to push itself forward, the cell creates numerous tiny ‘legs’.
• Experiments showed that upon attaching to the blood vessel wall, the white blood cell legs dig themselves into the endothelium.
• Researchers found that the shear force created by the blood flow was necessary for the legs to embed themselves.
• Without the thrust of the rushing blood, the white blood cells couldn’t sense the exit signals or get to the site of the injury.

Reflection
I picked this story because I thought that it had an extremely interesting title. After reading this article I was kind of disappointed with what I got out of it. The title pretty much sums the entire thing up, although it had some detail I still wish that I would have picked a different article.It was an interesting topic and a good thing to learn. In biology we learned about white blood cells the idea of them sprouting legs is an entirely different concept.

Link: http://www.sciencedaily.com/releases/2009/05/090504094424.htm

Picture: http://www.sciencedaily.com/images/2009/05/090504094424-large.jpg

Citation: Weizmann Institute of Science. "White Blood Cells Can Sprout 'Legs' And Move Like Millipedes." ScienceDaily 4 May 2009. 19 May 2010 .

Tuesday, April 27, 2010

Green Tea could modify the effect of cigarette smoking on lung cancer risk


-Green Tea reduces the chance of smokers getting lung cancer

-Certain genes in the tea work against tumorgenisis

-Their are certain things and environmental factors that work against Carcinogenesis

-Drinking at least one cup a day can help fight against cancer

- Smoking puts at a higher risk of getting cancer

Reflection: I thought that this article was very informative. Now if I or someone I know ever gets lung cancer I know how to fight it. I think its interesting how something like drinking green tea can help someone to fight off cancer. Cancer is a very important topic and I think that everyone should learn about it, so that they can take preventative measures toward it. Most people will be or know at least one person that will be affected by a form of cancer. Cancer is one of the leading killers around the world and its important to learn about it.

Link: http://www.sciencedaily.com/releases/2010/01/100112165108.htm

Picture: http://thequintessential.files.wordpress.com/2009/03/green-tea.jpg

Citation: American Association for Cancer Research. "Green Tea Could Modify the Effect of Cigarette Smoking on Lung Cancer Risk." ScienceDaily 13 January 2010. 19 May 2010 .