Chlamydia Trachomatis
Introduction: Chlamydia Trachomatis is the organism responsible for diseases such as trachoma and the STD Chlamydia. Chlamydia is the most common STD in the United States, with about 4 million new cases diagnosed every year.
The Organism & it’s Life Cycle: Chlamydia are obligate intracellular parasites, and are among the smallest living organisms. There are two stages in the life of Chlamydia: elementary bodies and reticulate bodies. Another feature of Chlamydia is that they are unable to synthesize their own energy (ATP) and are completely dependent on their host for energy. The organism is in the elementary stage of its life when it encounters its host and is taken up by phagocytosis. It prevents the fusion of the phagosome and lysosome; this is what normally kills pathogens. Once the phagolysosome formation is stopped, the bacteria secrete glycogen and transform into the reticulate body. Reticulate bodies obtain their energy by sending forth “straw-like” structures into the host cell cytoplasm, and they divide by binary fission. Each phagolysosome produces about 100-1000 reticulate bodies.
Virulence Factors: The cell wall of Chlamydia has been characterized as gram negative with a notable difference: it lacks muramic acid that is found in the cell walls of most other bacteria. This makes Chlamydia resistant to _-lactam antibiotics such as penicillin, because such antibiotics disrupt the “typical” cell wall, which includes muramic acid. Being gram-negative, it also contains LPS, which helps cause damage to the host’s body(mainly due to the host’s immune response). Once inside the host, chlamydia bind sialic acid receptors, which are usually found in mucous-rich environments. Antigenic variation is ...
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...nant women and neonates (that are infected with Chlamydia), erythromycin is the drug of choice. Chlamydia may be difficult to completely eradicate, but in the past few years, the incidence rates have been steady, and with planning and spreading information about it, we can attack the overwhelming incidence rate and curb the spread of Chlamydia.
References:
1) University of Wisconsin. http://www.bact.wisc.edu/Bact330/lecturechlamydia
2) CDC. Recommendations for the Prevention and Management of Chlamydia trachomatis
Infections, 1993
http://www.cdc.gov/mmwr/preview/mmwrhtml/00021622.htm
3) Schaechter, Engleberg, Eisenstein, and Gerald Medoff (1999). Mechanisms of
Microbial Disease. Third Edition. Lippincott Williams and Wilkins, Philadelphia.
4) MedlinePlus Medical Encyclopedia.
http://www.nlm.nih.gov/medlineplus/ency/article/001345.htm
Gonorrhea Gonorrhea is a curable, bacterial, sexually transmitted disease caused by a bacterium called Neisseria gonorrhoeae (a member of the family Neisseriaceae). Bacteria are introduced during sexual contact. These bacteria can infect the genital tract, the mouth, and the rectum. It attacks the urethra in males, the cervix in females, and the throat. The majority of the organisms belonging to this family are non-pathogenic or commensals, however, gonorrhea is always pathogenic.
At this point in time, scientists and doctors have yet to discover the specific causes for breast cancer. However, what is known are the different risk factors that may trigger or put women more at danger of acquiring this disease. Aged women who have experienced menopause are more vulnerable at containing this disease. Women are also more at risk if breast cancer is common within their family because it is hereditary. In addition, smoking and drinking are other factors that can put women at risk as well (Stephan, 2010). Obesity in particular is a huge risk factor. Women who are overweight, especially those who have a thicker upper body, are more likely to develop malignant cancers in the breast than a healthy woman (Vona-Davis and Rose, 2009).
Bacterial vaginosis is known to be the most common cause of abnormal vaginal discharge in women of childbearing age (Hay, 2010). Bacterial vaginosis is the result of the substitution of normal vaginal lactobacilli with anaerobic bacteria Gardnerella vaginalis and Prevotella, Peptostreptococcus and Bacteroides spp., which will result loss of the normal vaginal acidity (Turovskiy, Sutyak Noll, & Chikindas, 2010). Bacterial vaginosis is the main trigger of vaginal discharge or malodor in women (Hainer & Gibson, 2011). Studies specify that most women diagnosed with bacterial vaginosis are unaware of the infection; however, the fishy odor smell that accompanies this infection is usually a hallmark for its diagnosis (Hainer & Gibson, 2011).
Of the few people that know what breast cancer is some of them just believe that it is a lump. They do not know that there is a process to breast cancer they do not know that the tumor comes from somewhere and does not magically appear. Breast cancer can happen a few different ways in the breast, but “the most common type of breast cancer is ductal carcinoma” (cancer.gov). This type of breast cancer begins in the lining of the milk ducts. The ducts are the tubes that carry the milk from the lobules to the nipple. Think of them as little veins running from the nipple to a little pouch. Another place that the cancer could start is...
Today there are many risks that go along with Breast Cancer,some can not be changed but some can be stoped. One risk factor that cannot be changed is gender, women are at higher risk for breast cancer then men are. Age is also a factor that cannot be controlled, because the chance of breast cancer goes up, as women get older. Furthermore genetic risk factors cannot be changed. “About one case of breast cancer in ten is linked to changes (mutation) in certain genes” (Illinois Department 4).
... saw the men walk into his shop, he was not suspicious of anything. He figured that the men were here to pick out the flowers for Merlo’s funeral. One of the men put his hand out for a handshake, and that is when the other two took out their guns, and shot O’Banion to his death. The killers fled, and they had left the North Side Gang without a commander. O’Banions death lead Capone and Torrio to believe that they would go on with their business peacefully. Little did they know that Moran was going to take revenge on whoever was responsible for his commander’s death.
There is not one factor that is known to cause breast cancer solely, but there are a combination of factors that all work together in allowing these cancer cells to reproduce and invade. Gender is a big factor in breast cancer as the majority of people who get breast cancer are women. Men are capable of getting breast cancer but the likeliness of men getting breast cancer is very min...
Breast Cancer, as well as other forms of cancer, scientists do know how it occurs, but they do not know an exact cause. There are some genes in our body called oncogenes, genes that have potential to cause cancer, that increases the speed of cell division while other genes such as tumor suppressors, cause the cells to die at the correct time. Mutations that occur in the DNA, which “turn on” the oncogenes or “turn off” tumor suppressor genes, will cause some of the cells to be cancerous in the breast("American Cancer Society"). Also, Breast Cancer can be increased by inherited gene mutations and acquired gene mutations. The risk of Breast Cancer can be increased dramatically, through the inheritance from parent to offspring, if a mutation occurs. For example, if a suppressor gene, such as BRCA, forms a mutation, then it is likely to be passed to future generations. This gene no longer suppresses abnormal growth, therefore there is a higher chance of cancer being developed. Even though Breast Cancer can be inherited it is more likely to be acquired through one breast cell. The acquired mutations could be a result of of radiation or cancer-causing chemicals. ...
There are many different reasons that woman maybe at a higher risk for breast cancer than other woman. Family history is risk factors that increase a woman’s likelihood of getting breast cancer. What this means is if a woman is in a family where this disease is common among female or even males they are at a higher risk for being diagnosed with breast cancer than someone who is in a family where breast cancer is not common. If the relative that has this disease is one that is very close meaning they are either a sister, mother, or daughter the likelihood that said person will also contract the disease is then doubled. This is mainly due to the fact that in close relations you are able to inherit the genes BrcA-1 or BrcA-2, these genes are mutation genes that play a role in controlling the growth of cancer cell. Only a small portion of women inherit this gene about 1 in 500 to be exact, however when they do inherit this gene they have a 80% chance of developing breast cancer in their lifetime. This gene causes woman to develop cancer at a younger age usually before the time they hit menopause. Also, women with this gene have a greater risk of developing cancer in both breasts which is called bilateral breasts cancer. This is due to the fact that once the cancer develops in one breast the risk for developing it in the other breast increases. (“Breast Cancer”) "About 5 to 10% of breast cancer is hereditary, passed from one generation to the next via a variety of mutated genes". (Port 95-105) Lastly,
Breast Cancer is defined as “a group of solid tumor malignancies arising in the tissues of the breast” (Sarah Crawford, Richard Alder, 2013) in human and other mammals. It can happen to both men and women. For women, breast cancer is one of the leading causes of cancer death. According to National Cancer Institute, in the United States, the 2014 estimated new cases and deaths of female from breast cancer are 232,670 and 40,000, respectively. For male, it’s 430 deaths out of 2,360 new cases. From these numbers, we can see that women in the U.S. are greatly affected by breast cancer, thus, it’s not difficult to imagine the impact on a worldwide level. Although these numbers look frightening, people can actually survive from breast cancer if it is detected early and treated properly, so it is extremely important for all of us, especially women, to have a better understanding of breast cancer.
Breast cancer can be caused by a variety of factors. Up until recently, many doctors believed breast cancer was strictly related to heredities. Research has shown that a woman whose mother, sister, or daughter has had breast cancer is two to three times more likely to develop the disease (“Breast Cancer Causes…”). Inherited genes mutations can be passed from parents to children, but they don’t make cancer inevitable. The majority of women diagnosed with breast cancer have no family history (Mayo Clinic Staff). Researchers have found a link between breast cancer and a woman’s amount of exposure to estrogen and progesterone over her lifetime. Women who began their period before age 12 or started menopause at an older age are more likely to develop breast cancer (Mayo Clinic Staff). Women who have never had children or had children after age thirty-five are also at greater risk (Mayo Clinic Staff). Any of these situations will alter the hormone levels of a woman’s body. In relation to this risk factor, doctors believe that growing older is one fac...
Best “treatment” of cancer is preventing its occurrence in the first place or detecting it early when it may be most treatable. Mammogram screening is the best way of testing breast cancer in persons who do not have any symptoms of a cancer but are at high risk for breast cancer [23]. A mammogram helps to reveal irregularities and help to detect breast cancer early before they can be felt when it is most treatable.
Sexually Transmitted Diseases Sexually Transmitted Diseases STDs, a.k.a venereal diseases, infectious diseases passed from one person to another during sexual contact. STDs are the most common infections known. More than 12 million people in the United States, including 3 million teenagers, are infected with STDs every year. The United States has the highest STD rate in the world about one in ten Americans will contract an STD during his or her lifetime. People who do not know they are infected risk infecting their sexual partners and, in some cases, their unborn children. If left untreated, these diseases may cause pain or may destroy a woman's ability to have children. Some STDs can be cured with a single dose of antibiotics, but AIDS cannot be cured. Those most at risk for contracting STDs are people who have unprotected sex—without using a condom, people who have multiple partners, and people whose sex partners are drug users who share needles. Static’s show that Americans between the ages of 16 and 24 are most likely of catching STDs than older adults, because younger people usually have multiple sexual partners than an older person in a long-term relationship. Teenagers may be embarrassed to tell their sexual partners they are infected Teenagers may also be embarrassed or unable to seek medical attention for STDs. This means that they only more likely to pass the disease to other young people and have a greater risk of suffering the long-term consequences of untreated STDs. STDs are transmitted by infectious bacteria, viruses, parasites, fungi, and single-celled organisms called protozoa that live in warm, moist parts of the body, like the genital area, mouth, and throat. Most STDs are spread while having sex, but oral sex can also spread disease. Some STDs are passed from a mother to her child while pregnant, when the disease enters the baby's bloodstream, during childbirth as the baby passes through the birth canal, or after birth, when the baby drinks infected breast milk. AIDS can be transmitted by blood contact such as open wounds, between people who share infected needles or received through an injection of infected blood. Some people believe that STDs can be transmitted through shaking hands or other casual contact, or through contact with inanimate objects such as clothing or toilet seats, but they can’t. Chlamydeous, is from trachoma is bacterium, is the most commonly transmitted STD in the United States.
Historically speaking breast cancer has been around for hundreds of years. Thankfully the treatment has improved. Patients who get the cancer removed and take care of themselves after, for example, by exercising and eating healthy, will live longer. There are many risks that increase the likelihood of developing breast cancer, for instance, age, family history, and race. A women who made history with breast cancer was Betty Ford, Betty was one of the first lady’s to speak openly about her disease. Betty encouraged women who have been affected with the disease to go to their doctor as soon as possible and told women who had shared that they didn’t have breast cancer to do self breast exams regularly and get mammograms. She also said when women get diagnosed with it don’t be embarrassed. Treatments in the past were pretty good and quite the same compared to the treatments given to people now, for instance, mastectomy’s which was the primary...
I think that is important to know how to treat with the breast cancer disease if we do not treat these disease on time it can guide us to death. It is important to have a healthy life like getting excersice, eating healthier, not smoking etc . Also, it is important to get mammographies, skin examinations and other diagnostics that can helps us to prevent breast cancer. For now , there is no cure for the all the types of breast cancer, so it is important to be informed of new treatments on our cities. We can not let cancer to beat us. We need to be strong to fight against all these types of disease that want to end with our lives.