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Cervical cancer development
Cervical cancer development
Hpv cancer research paper
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HPVs are now identified as the etiological factors in nearly all types of cervical intraepithelial neoplasia (CIN) and invasive cancer of the cervix. In fact, based on laboratory, clinical, and epidemiological evidence HPVs have been recognized as the ‘necessary cause’ of cervical cancer that is cancer of the cervix will not develop in the absence of persistent HPV infection.10 The relationship is stronger than that between cancer of the lung and cigarette smoking; but, the progression of cancer of the cervix from HPV infection is not inevitable. Studies have shown that only 100 000 or 10% of every one million women who are infected, progress to cervical dysplasia (that is pre-cancerous changes in cervical epithelial cells). Out of these,
(Attention Getter) The Center for Disease Control reports that 100% of sexually active men and women contract genital HPV
What is the human papillomavirus (HPV)? According to the US government’s National Cancer Institute, human papillomaviruses (HPVs) are a collection of more than one hundred viruses, many types having the ability to grow tumors or polyps that are malignant and others benign. Certain of the viruses are capable of forming genital warts. The HPVs that cause the common warts on hands and feet are different from those that cause growth in the throat or genital area (Human Papillomavirus). Professors Joe Cummins and Dr. Mae-Wan Ho inform us that some types are associated with cancer, and are called “high risk” HPVs. Of the more than one hundred types of HPVs, over thirty can be passed on through sexual contact. Most HPV infections occur without any symptoms and go away without treatment over the course of a few years. However, HPV infection sometimes persists for many years, with or without causing detectable cell abnormalities. Infection from “High risk” types of HPV is the main cause of cervical cancer. Pap smears have also led to earlier detection of these infections. Nearly all women who are sexually active will have HPV inf...
There are over 100 types of HPV (Human Papilloma Virus). This virus affects the skin and moist membranes that line the body such as the mouth, throat, fingers, nails, cervix, and anus. Between 30 and 40 of the 100 viruses can affect the genital area; for the most part it causes genital warts. Human Papilloma Virus is one of the most common sexually transmitted diseases In the United States, according to various studies it is estimated that at least 50% of sexually active people will get some type of genital Hpv at some time in their lives. People can get Hpv and have the virus for years, even pass it on to their sex partners without even knowing it that is because the virus often does not show any symptoms. It is a sexually transmitted disease that can cause genital warts and cervical cancer”. (“HPV fact sheet” 2012).
Hepatitis is inflammation of the liver. There are currently five known viruses that cause can hepatitis (Microbiology, 10e). The hepatitis C virus (HCV) is transmitted through contact with the blood of an infected person; however, it is now more commonly spread among IV drug users that share needles. Healthcare workers are also at risk for contracting HCV, but with standard precautions, the risk is low. “Prior to 1992, some people acquired the HCV infection from transfusions of blood or blood products. Since 1992, all blood products have been screened for HCV, and cases of HCV due to blood transfusion now are extremely rare. HCV can be passed from mother to unborn child. Approximately 4 out of every 100 infants born to HCV-positive mothers become infected with the virus. A small number of cases are transmitted through sexual intercourse; however, the risk of transmission of HCV from an infected individual to a non-infected spouse or sexual partner without the use of condoms over a lifetime has been estimated to be between 1% and 4%. There have also been some outbreaks of HCV when instruments exposed to blood have been re-used without appropriate disinfection.” (Microbiology, 10e)
According to Family Research Council, “Human Papillomavirus (HPV) is a virus that can cause abnormal tissue growth on different cell surfaces in and on the human body” (Gaul, 2014). HPV is passed alone during sexual contact with direct skin to skin contact and can often have little to no symptoms of infection at all which is why many individuals do not know that they have the disease. This can cause warts that will appear on the outer skin layers of the body or on mucus covered surfaces that are found in the throat and genitals. HPV is classified into two categories, it can be considered high-risk or cancer associated or low-risk or non-cancerous associated. HPV infects approximately 2...
Cervical cancer is formed in the tissues of the cervix, an organ that connects the uterus and the vagina. Virtually all cervical cancers are caused by Human papillomavirus (HPV) infections (Schiffman et. al., 2007). HPV is the most common sexually transmitted infection in the United States. According to the CDC, 75% of sexually active people aged 15-49 have the infection at some point in their lives. (CDC). Because HPV infection is usually asymptomatic, infected people do not know exactly when they get the infection. In most cases, the body is able to fight off the virus before any symptom. However, health problems such as genital warts and cancer may result with persistent exposure to HPV.
Human papillomavirus (HPV) a non-enveloped virus accounted as the most important causative agent of cervical cancer worldwide with more than 45,000 diagnosed cases annually (1). Even after establishment of encouraging vaccine platforms for it,s prevention due to shortages of this supplements the infection rate remained accelerating in developing country. Yet, more than 100 types of HPV distinguished by genetic analysis among them types 16 and 18 belonged to definite carcinogens group are responsible for more than 62% and 15% of cervical cancers respectively(2, 3). The major limitation associated with current HPV available vaccines is their useless application for therapeutic approaches indeed so developing a suitable therapeutic vaccine remained a big challenge in this era (4) .
One half of men and one third of women will get cancer in their lifetime. ½ million people are going to die this year, that’s more than 1,500 people per day! One in eight deaths in the world is due to cancer. Cancer causes more deaths than AIDS, tuberculosis, and malaria combined. Cancer is a disease that’s preventable, curable, and deadly.
Ovarian Cancer is a disease of uncontrollably dividing cancer cells in the ovary. Being one of the most devastating diseases to have, along with a limited number of treatment opportunities, it may feel like there has been a time stamp put on your life. With that said, there are four different types of ovarian cancer: epithelial tumors, germ cell carcinoma tumors, stromal carcinoma tumors, and small cell carcinoma of the ovary. Epithelium cancer is the fourth leading cause of death in women in the United States, killing approximately 140,000 women yearly.
Human Papillomavirus is a common viral infection that has emerged as an important risk factor. Anyone who is sexually active is at risk for getting this disease; although there is a vaccine to prevent it. Once someone has HPV they are more at risk for genital warts and Cervical cancer (CDC). It can years for the symptoms to ...
An ordinary human body contains approximately one trillion cells and precisely 46 chromosomes in each cell. However, the human body can be altered by a genetic mutation. Over the course of history, genetic mutations have had a large impact on the human race. They have brought harm to numerous amounts of people. Cancer, in particular, is one of the most lethal diseases. Cancer begins when a portion of DNA inside a chromosome is damaged, causing a cell to mutate. Then, the mutated cell reproduces multiple times and creates a tumor. Afterwards, cancer cells break off of the tumor, enter the bloodstream, and disperse throughout the body. If the cells break off, the tumor is considered malignant - this type of cancer is very difficult to cure. Many patients today stay optimistic for a medication to heal cancer. It is imperative to address a few of the causes and effects of cancer in order to gain a general knowledge of genetic mutations.
Treatment consists of surgery in early stages and chemotherapy and radiotherapy in advanced stages of the disease. An effective HPV vaccine against the two most common cancer-causing strains of HPV has recently been licensed in the U.S. These two HPV strains together are responsible for approximately 70% of all cervical cancers. Experts recommend that women combine the benefits of both programs by seeking regular Pap smear screening, even after vaccination. Symptoms of advanced cervical cancer may include: loss of appetite, weight loss, fatigue, pelvic pain, back pain, leg pain, single swollen leg, heavy bleeding from the vagina, leaking of urine or feces from the vagina, and bone fractures.
Cancer develops when cells in a part of the body begin to grow out of
If abnormalities are found on Pap test, the abnormal mass could be removed or destroyed via loop electrosurgical procedures, cone biopsy, cryosurgery or laser surgery. These surgical interventions, are a form of secondary or tertiary preventitive strategy. Treatment and surgical excision to remove precancerous lesions are secondary prevention whereas approaches to manage cancerous growth constitute tertiary prevention. Surgical interventions are effective in removing pre-cancers and cancerous growths, preventing them from developing into malignant tumour or metastasizing elsewhere. In some rare cases, trachelectomy and hysterectomy is performed, where the entire cervix is removed. Surgery is comonly followed by radiotherapy and/or chemotherapy to target the remaining cancer cells that failed to be excised. When the disease can no longer be cure, palliative care is provided to reduce symptoms and improve quality of
Since ovarian cancer happens in the ovaries it can only occur in women due to the fact that men do not possess ovaries. Ovarian cancer ranks fifth as the cause of cancer death in women and is more common among Caucasian women age 63 years or older. A woman’s risk of getting invasive ovarian cancer in her lifetime is about 1 in 73but her chance of dying from invasive ovarian cancer is about 1 in 100. The American Cancer Society’s estimates for ovarian cancer in the