The article I read was about some scientists that were able to grow teeth inside rats’ bodies. This project was led by Pamela C. Yelick, a scientist for Forsyth Institute, and the project was conducted in Massachusetts. Joseph P. Vacanti, a tissue engineer at Massachusetts General Hospital, and Yelick had the idea for the experiment.
Vacanti had previously worked with rats and he found that cells will naturally organize themselves into tissues and other complex structures if they are placed in the right environment. Vacanti and Yelick hypothesized that the same approach could be applied to growing teeth. Previous research had identified the stem cells that make dentin, but no one had been able to use the stem cells that make tooth enamel prior to this experiment.
The teeth were formed – inside the bellies of rats – using stem cells from pigs. Yelick obtained the cells from discarded pig jaws at a meat packing plant. The scientists removed a molar that had not yet erupted from the pig jaw to use for the project. They ground the molar into small pieces and treated it with enzymes to break it down into small patches of cells.
The cells were then placed into a scaffold and implanted into the rats. The scientists placed the scaffolds in the blood-rich tissue near the rats’ intestines. This area provided the nutrients that the cells needed to grow. The rats used in the experiment had weakened immune systems that would not reject the foreign tissue.
At that point, the researchers could only wait for the teeth to grow. As an added precaution, the rats were placed in a special clean room behind locked doors. The researchers would periodically x-ray the rats to see if anything had grown, but it was not until after several months that they actually found encouraging splotches inside the rats.
This article showed that we can use stem cells to create tooth enamel that we can use for new teeth and other dental needs in the future. Before this project, the idea of creating teeth using stem cells was only a thought. In class we talked about the creation of human organs inside of animals, cloning animals, and cloning humans, but we had not mentioned “cloning” teeth. Cloning humans brought up many ethical issues, but I do not think “cloning” teeth would pose any problems.
The information in this article seems biased. The Boston Globe is definitely not a scientific journal.
“Considerable anecdotal evidence suggests that marijuana may be effective in treating a number of medical conditions… such as chemotherapy-induced nausea, wasting and anorexia associated with AIDS” (Joffe and Yancy). Marijuana can help treat this conditions, but there are also other people who use marijuana as a medicine for others circumstances. For example, people use marijuana to sleep, because some people have difficulties to sleep in the night and they need this product to rest their body. Also, those people who could only sleep a few hours use marijuana to help them sleep more hours. Some individuals use marijuana for problems of rheumatism, they mixed marijuana with alcohol to pain relive. Moreover people say that the results with this product is beneficially for adults. People sometimes use marijuana to relaxing his bodies. For example, there are a number of people who stress in work and use it for relaxing at home. However, marijuana should not be legalized because using it as medicine can result in negative consequences. “While proponents assert marijuana’s usefulness in treating a variety of medical conditions, opponents counter that the drugs has never been proven effective and the new laws open the door to abuse” (Peron). Those who use marijuana to sleep can have serious problems because if they use this drug every day to sleep their body will became used to receiving this medication daily. Thus, their body will never rest unless they take in drugs to help them sleep and eventually they will become addicted. Therefore, those who believe that marijuana should be legalized need to rethink the severe consequences that using it as a medicine will cause. People are using marijuana as a medication because it is an excuse to take in drug. For those reasons, it will be more beneficial if marijuana stays
Beckey and Kim worked full time as a nurse and a medical tech, respectively in Tupelo, MS. They faced a
Because stem cells are essentially a blank slate, scientists are theoretically capable of growing any human tissue cell. There is enormous medical potential in this. Stem cell research is the next step in advancing the medical field. It is comparable to the discovery of penicillin or the inoculation for smallpox.
Seventeen to nineteen percent of the fifty percent of children who are in early education programs are in head start. Head start was created in 1965 and is the largest financed early education in the United States. Although many say that head start is a great tool to get students ready for school there are some mixed evidence on both of it. Head start has not shown any improvement on the math skills. There is only a limited research on the impact of making a teacher and student relationship. It has shown that it helped with the students who have special needs on their attention abilities. Children who went to head start did have a more positive school readiness then the one who did not go to Head
A more recent discovery, made in 2014, stem cells are being created from cells of young mice, this involves taking mature cells from mice and turning them into embryonic like stem cells, this new technique has not yet been tested in humans.
The word Marijuana also known as cannabis, pot, weed, herb and green stuff has been universally criticized since the beginning of the century. According to (Fitzgerald, K. T., Bronstein, A. C., & Newquist, K. L. 2013) “the term "marijuana” typically refers to tobacco-like preparations of the leaves and flowers” (Fitzgerald et al., (2013). (McGuinness, Teena M, PhD,P.M.H.-N.P., B.C. (2009) stated that “Cannabis cigarettes are also called joints, nails, and reefers; pipes for smoking are also known as bongs and bowls” (McGuinness et al., 2009) The truth is that the legalization of Marijuana has positive effects on both society and the wellbeing of individuals and should be legalized. The government can monitor and tax Marijuana thus helping the economy. Secondly Marijuana can be used as medical therapy; thirdly there would be less youth and adults in jails and prisons. Conversely the use of Marijuana can be proven highly addictive among individuals in our society; Marijuana is more harmful that cigarettes and Marijuana is known as the (Gate Way) drug to harsher drugs. The benefits of legalization Marijuana outweigh the cons.
Comparing marijuana and other drugs and substances used under abuse mode, it has come out clear that marijuana legalization will, to a great extent improve the living standards of people and econiomic growth. Suggestions are that marijuana be legalized and regulated under the law that regulates the use of tobacco and alcohol. In some countries, cannabis sativa forms the bulky of the cash crops dependent on, and if legalized will tremendously create jobs and shun the illicit market by provision of opportunities in the formal market. A lot of taxpayer’s money, which could be used in improving the living standards of citizens, is spent in dealing with criminal offences related to marijuana use. As well, the criminilization of marijuana leads to prejudice, corruption,vio...
The concept of using animal organs in human beings is not a new one. On...
The legalization of marijuana has been a highly debated topic for many of years. Since the first president to the most recent, our nation’s leaders have consumed the plant known as weed. With such influential figures openly using this drug why is it so frowned upon? Marijuana is considered a gateway drug, a menace to society, and mentally harmful to its consumers. For some people weed brings a sense of anxiety, dizziness, or unsettling feeling. Like alcohol, tobacco or any other drug, those chemicals may not respond well with their body. For other people marijuana brings joy, a sense of relief, and takes the edge off of every day stress. For those who are associated with cannabis, purposes usually range from a relaxant, or cash crop, to more permissible uses such as medicine, and ingredient to make so many other materials. We now need to look at what would change if marijuana were legal. Benefits to the economy and agriculture, health issues, and crime rates are three areas worth looking at. Deliberating on the pros and cons of this plant we can get a better understanding for marijuana. From there it will be easier to make a clear consensus on what is best for the nation.
The ones against euthanasia have an ethical formalism mind frame because they’re solely concerned is with rights as a hold society and not the individual right. The religious ,ethical framework might not provide a moral support system. Euthanasia deal with religious ethical framework is an touchy situation because religious it is a sin to commit suicide. The ethical dilemma of euthanasia deal with religious, ethical framework because it could break that religious golden rule. The People who against euthanasia would use the religious ethics framework by stating, the legalist position is God and nobody have a right to play god and determine
Research on stem cells is advancing knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms. This promising area of science is also leading scientists to investigate the possibility of cell-based therapies to treat disease, which is often referred to as regenerative or reparative medicine. There is genuine scientific excitement over the concept of using the body's own cellular building blocks to regenerate damaged or ageing organs. Stem cells are one of the most fascinating areas of biology today. But like ...
Euthanasia, also known as assisted suicide, means to take a deliberate action with the express intention of ending a life to relieve intractable suffering. In the majority of countries, euthanasia is against the law because it is illegal to help someone kill themselves, not matter the severity of the circumstances. Euthanasia is simply unjustified. As humans we are granted the right to live, not to die, and so taking a life that you have been blessed with is not an honorable or appropriate option. If society accepts euthanasia, it will weaken society’s high view of life. Furthermore, if society allows euthanasia of a patient due to the economic considerations, do we not expect this same society to euthanize the mentally challenged and physically disabled. Euthanasia might just end up making society accept the notion that some lives are worth less than others; and that is unacceptable.
Some people might think that it’s immoral to kill someone without natural cause. The goal for Euthanasia is to provide a person a way to relieve extreme pain or when a person life is just going downhill for them. This also help’s free up medical funds to help other people. In other cases it could be a freedom of choice if the patients wants to end their life without going through anymore suffering. A lot of argument is over if Euthanasia devalues life or if it is against human moral to take another life. While a person decisions does play a role in this, most of the time it will be a physician choice to see if the patient should live or
... greater pain and anguish for longer periods of time than my father did, I believe euthanasia is the only compassionate form of relief we can provide. I believe it is morally important to allow an individual to die with respect for his or her dignity, while respecting his or her autonomy. Because of these reasons, euthanasia is morally justified when administered under strict controls.
Some people think that pre-school programs only target children from poor families. However, for many years they created an opportunity for children from middle and upper – income families to get free education as well. The reason why they targeted the poor because the government would pay the program more money and it would as be considered a taxed write off. Every child that attends a pre-k program would have a higher graduation rate and a lower delinquency rate. Preschool is not only beneficial to the child but also to the entire country. Forty-eight percent of children from low-income homes are not starting school ready to learn. Seventy-five percent of children from middle- income are starting school ready to learn. Parents whom are well-educated read to their child an extra hour a day than those who are not. Early learning certainly affects a child brain structure and creates an aspiration to learn more past age level. It is a proven fact that they are less likely to need assiantace from the government and drop out of high school. They even are less likely to be in trouble with the law and more like to go to college and become very successful. In low income setting and for children who don’t attend preschool is Thirty percent is most likely to drop out of high school. Forty-five percent is