This then leads to the activation of a number of genes whose products trigger cell-cycle arrest, apoptosis, or DNA repair" (Lakin 1999, p. 7644).
In research led by Hussain, he investigated the targets of free radicals, which are DNA, proteins, RNA, and lipids. He noted that, "mutations in cancer-related genes or post-translational modifications of proteins by nitration, nitrosation, phosphorylation, acetylation or polyADP-ribosylation-by free radiacals or lipid peroxidation byproducts…are some of the key events that can increase the cancer risk" (Hussain 2003, p. 276). Furthermore, changes in DNA occur when the person has been exposed to high levels of nitric oxide or NO. p53 plays a role in that it acts as a mediator to stress but NO "causes p53 accumulation and post-translational modifications that inhibit cellular growth" (Hussain 2003, p. 278). His research has revealed that when exposed to NO during chronic inflammation sans wild-type p53, there might be increased risk due to negative inducible NO synthase or iNOS regulation. In the same study, the cellular workings of breast cancer was stated by that the "polymorphism of the gene encoding the antioxidant enzyme manganese superoxide dismutase (MnSOD), which convert O2 to H2O2 alters protein trafficking" (Hussain 2003, p. 282) thus increasing such risk. Lung cancer risk is increased due to the "polymorphism at Pro198LEU in the glutathione peroxidase 1 gene -- which converts H2O2 to water" (Hussain 2003, p. 282).
The concern for cancer is ever growing and no one is immune to such a disease, which can take place anywhere in the body due to abnormal cell growth. However, certain environmental factors may be done to reduce risk, such as eating better and becoming more active while discarding a smoking habit. Unfortunately, genetics plays a role and family history of cancer potentially increases one's...
These behaviors need to be taken more seriously in order to prevent further deaths. 3. Several different cancers affect women and men separately. The cancer most prevalent in women is breast cancer, which kills over 40,000 women in America each year, (National Cancer Institute, 2008). Breast cancer is followed by lung cancer and colorectal cancer, (Medicinenet.com, 2008). Men are most afflicted by prostate cancer, which is then followed also by
In the tissue culture, they usually proliferate indefinitely. The normal constraints which limit the growth of the cells absent in the cancerous state and are also characterized by the division ability for number of generations which is unlimited. Cell cycle and cancer With millions of chemical reactions taking place concurrently and in specific areas, the human body can be thought of as a small laboratory. It is the only "machine" with
4 months in the placebo group. (P=0.01) [Kyogo et.al] an earlier study by Nestle et.al (1998) had showed promising results. In that study, a small group of renal cancer patients were vaccinated with RNA-transfected dendritic cells. T cell response was noted in most of the treated patients and a follow up study conducted after 19 months showed that 7 out of 10 patients still survived. [Jian et.al, 2008] Other vaccines
Cancer nurses with sufficient knowledge of the biological basis of these therapies would be better equipped to deal with the practical clinical implications and provide better symptoms management. The technical understanding of the nurses is also crucial in educating and in enabling the patients to take care of themselves. Further, it also goes without saying that nurses, as the primary caregivers are responsible for the emotional well being of
The nursing professional must be adept at dealing with these kinds of conversations, and without increasing the guilt that the family member or patient might be experiencing, and keeping in mind the patient's probable depression; it is the responsibility of the nursing professional to take the conversation back to the treatment and therapies that within the realm of the legal and ethical practices in delivering medical nursing care. Jacquie Peden,
Coping With Cancer According to the American Cancer Society, cancer is the second leading cause of death in the United States. Half of all men and one-third of all women in the U.S. will develop cancer during their lifetimes. Today, millions of people are living with cancer or have had cancer. The numbers are dismal; according to most statistical data American's possess almost a fifty percent chance of developing cancer. With
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