1. Brendan Maher, in his article “How to Build a Heart” discusses doctor’s and engineer’s research and experimentation into the field of regenerative medicine. Maher talks about several different researchers in this fields. One is Doris Taylor, the director of regenerative medicine at the Texas Heart Institute in Houston. Her job includes harvesting organs such as hearts and lungs and re-engineering them starting with the cells. She attempts to bring the back to life in order to be used for people who are on transplant waiting lists. She hopes to be able to make the number of people waiting for transplants diminish with her research but it is a very difficult process. Maher says that researchers have had some successes when it comes to rebuilding organs but only with simples ones such as a bladder. A heart is much more complicated and requires many more cells to do all the functions it needs to. New organs have to be able to do several things in order for them to be used in humans that are still alive. They need to be sterile, able to grow, able to repair themselves, and work. Taylor has led some of the first successful experiments to build rat hearts and is hopeful of a good outcome with tissue rebuilding and engineering. Scientists have been able to make beating heart cells in a petri dish but the main issue now is developing a scaffold for these cells so that they can form in three dimension. Harold Ott, a surgeon from Massachusetts General Hospital and studied under Taylor, has a method that he developed while training. Detergent is pumped into a glass chamber where a heart is suspended and this detergent strips away everything except a layer of collagen, laminins, and other proteins. The hard part according to Ott is making s...
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...promising.
3. The most interesting part of this article for me was learning that researchers and surgeons have already developed so much information on regenerative medicine. I had no idea that simple organs such as bladders and tracheas were already being rebuilt and put into humans. This field is very interesting to me and it seems like difficult work but I think that everything that comes out of it will be helpful to the medical field and human health. The way they are able to take something as small as a cell and turn it into a functioning organ is surprising to me. I knew about the growing list of people who need some type of transplant and the fact that researchers are looking for a way to diminish this list is amazing. It seems to be a growing field of study and I hope that many bright researchers join this study of the human heart and regenerative medicine.
In this figure, SN = sinus node; AVN = AV node; RA = right atrium; LA
Of the two representations of the “Tell-Tale Heart”, the live action version is best. The live action was more accurate to the original story than the animated version was. The animated version was mostly for entertainment and got some facts wrong. In the live action, he killed the man in the same way and it had all the narrative of the story. The narrator wasn't Poe, like he was in the animated version. He disposed of the body the same and acted the way the character did in the original book. In the live action, the old man’s eye was completely covered by the film. He also panicked the same way as the book.
Attention Getter: A week and a half ago, there was a news article reporting that Dr. Bud Frazier was being honored for performing the most heart transplants nationwide. Specifically, he performed 1,500 heart transplants and implanted 1,000 left ventricular assist devices. He is also the man who invented the device. Where did the remarkable research and advances begin for organ transplants in human beings, and how did it make progress?
The development of the artificial heart began in the early 1950’s. The initial prototype, developed in 1970’s by the artificial developmental staff at the University of Utah, allowed 50 hours of sustained life in a sheep. Although this was called a success, the implantation of the artificial heart left the sheep in a weakened state. It wasn’t until late 1970’s and the early 1980’s where the improvement of the artificial heart actually received attention as a possible alternative to a heart transplant. The remodeled product of the early 1970’s did more than just the 50 hours of sustained life; it enabled the cow to live longer and to live a relatively normal life, with the exception of a machine attached to the animal.
There have been many great inventions that have shaped our world for the better throughout the years. Some of those inventions have been created by minorities. For example some of them have been the first Airplane, Telephone, Computer and many others. One of the most useful inventions that have saved many lives and has made the world a better place have been the Heart Inventions. The Heart is the organ that keeps every human being alive. The heart is also the first organ to develop. Although, sometimes individuals are born with heart conditions technology is always there. In some cases the heart has to be removed and an Artificial Heart has to be implanted. The Artificial Heart has been one of the most significant inventions created.
They have now invented a “beating heart transplant.” It consists of a mechanical system to keep the heart beating, while it is being transferred to the candidate. Statistics have proven that these candidates have a higher recovery rate, because of the “beating heart.” Throughout reading above, it is a given that organ donation is vital to saving lives, but it is not deemed proper to be made mandatory.
...velopment of tissues to replace damaged organs in the human body. Scientists have discovered for the first time how stem cells could be generated from embryo’s that were produced using adult stem cells.
The Normal Heart can be analyzed through a structural functionalist theory. Structural functionalist theory looks at society as a complex system with parts that work together to promote solidarity and stability. This approach stresses social solidarity, divided into organic and mechanical classification according to general type, and stability in social structures. In the early stages of the film society works as a whole, with the homosexual community being more accepted than they would have been in previous decades. The 1980s welcomed gay activism in the New York social scene with New York City as a safe place where gays were free to walk down the street hand in hand without fear of much discrimination (Elizabeth
The behavior of the narrator in The Tell-Tale heart demonstrate characteristic that are associated with people with obsessive-compulsive disorder and paranoid schizophrenia . When Poe wrote this story in 1843 obsessive-compulsive disorder and paranoia had not been discovered. However in modern times the characteristics demonstrated by the narrator leads people to believe that he has a mental illness. Poe’s narrator demonstrates classic signs throughout the story leading the reader to believe that this character is mad
The Tell-Tale Heart: An Analysis In Edgar Allan Poe’s short-story, “The Tell-Tale Heart,” the storyteller tries to convince the reader that he is not mad. At the very beginning of the story, he asks, "...why will you say I am mad? " When the storyteller tells his story, it's obvious why. He attempts to tell his story in a calm manner, but occasionally jumps into a frenzied rant.
This article is quite old, I noticed it was from 1995, almost 9 years ago, and I can't believe how much further technology has taken us. There have been many advancements in the stem cell study. It is an even bigger controversy now, however. Scientists have found that the highest concentration of stem cells in a persons body comes from their umbilical cord after they are born. They want to create embryo's and use the stem cells from them to help someone else. To me, this is like the cloning issue. I don't think that we should be cloning people pretty much for spare parts like livers, kidneys, etc. It would be like a factory of torso's. It would be gruesome to go into a place that is full of partial bodies, with no heads or souls, and go harvest organs when the time or need arises. That is just too much. The article was pretty informative, and I did learn many things that I did not know previously.
...ink that Robertson’s article will help those who are middle of the road accept it better and hope that those who strongly oppose it see his viewpoint. Hopefully a lot of good will come out of research like this and it will benefit millions of people from giving them new life to giving them extended life.
One of the most beneficial aspects to cloning is the ability to duplicate organs. Many patients in hospitals are waiting for transplants and many of them are dying because they are not receiving a needed organ. To solve this problem, scientists have been using embryonic stem cells to produce organs or tissues to repair or replace damaged ones (Human Cloning). Skin for burn victims, brain cells for the brain damaged, hearts, lungs, livers, and kidneys can all be produced. By combining the technology of stem cell research and human cloning, it will be possible to produce the needed tissues and organs for patients in desperate need for a transplant (Human Cloning). The waiting list for transplants will become a lot shorter and a lot less people will have to suff...
To reiterate, bioengineering will bring hope to the people who are in need of organ and body replacements in order to live a completed life. They will no longer need to wait weeks, months, or years for transplants that may or may not be given to them on time. Bioengineering will help solve medical problems of human beings using engineering concepts. Bioengineers will not only help the person’s medical complication, but it will also help their mentality, of feeling better about themselves and avoiding suicidal thoughts. I believe that bioengineering will create a new world where transplant lists will be immensely reduced, a world where there will be fewer disabilities, and a world where many lives will be saved. Bioengineering will change the world.
A number of organs have the intrinsic ability to regenerate, a distinctive feature that varies among organisms. Organ regeneration is a process not fully yet understood however when its underlyning mechanism are unreveled, it holds tremendous therapeutic potential for humans. [28]