«A variety of maladies, sometimes disabling, beset many ovulatory women in a recurrent manner during the luteal phase of each ovarian cycle. Although the biological basis for this association is not defined, evidence points to a causal relationship...» Document abstract
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medical studies
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26/11/2007
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SummaryA variety of maladies, sometimes disabling, beset many ovulatory women in a recurrent manner during the luteal phase of each ovarian cycle. Although the biological basis for this association is not defined, evidence points to a causal relationship between progesterone secretion and withdrawal and the development of these premenstrual syndromes (PMS). As reviewed by MacDonald and associates (1991), symptoms include disorders in mood, behavior, and physical well-being. Commonly, there is a characteristic cluster of the same symptoms in a given woman month after month.
«Menstruation is the periodic discharge of blood, mucus, and cellular debris from the uterine mucosa. Menses occur at more or less regular, cyclical, and predictable intervals from menarche to menopause except during pregnancy, lactation,...» Document abstract
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Language : english
medical studies
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date published
26/11/2007
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SummaryMenstruation is the periodic discharge of blood, mucus, and cellular debris from the uterine mucosa. Menses occur at more or less regular, cyclical, and predictable intervals from menarche to menopause except during pregnancy, lactation, anovulation, or pharmacological intervention. It is convenient and more descriptive to use the term menstruation to refer to the bleeding that accompanies progesterone withdrawal after ovulation with nonfertile cycles, and to refer to other episodes of endometrial hemorrhage in nonpregnant women as uterine or endometrial bleeding.
«Delirium, a clinical syndrome characterized as an acute disorder of attention and cognitive function, is the most frequent complication of hospitalization for elders and a potentially devastating problem. Delirium often is unrecognized despite...» Document abstract
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Language : english
medical studies
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date published
26/11/2007
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SummaryDelirium, a clinical syndrome characterized as an acute disorder of attention and cognitive function, is the most frequent complication of hospitalization for elders and a potentially devastating problem. Delirium often is unrecognized despite sensitive methods for its detection, and its complications may be preventable.
«Endometrium/decidua is the anatomical site of blastocyst apposition, implantation, and placental development. The endometrium is the mucosal lining of the uterine cavity and the decidua is the highly modified and specialized endometrium of...» Document abstract
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Language : english
medical studies
research papers
date published
20/11/2007
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SummaryEndometrium/decidua is the anatomical site of blastocyst apposition, implantation, and placental development. The endometrium is the mucosal lining of the uterine cavity and the decidua is the highly modified and specialized endometrium of pregnancy. From an evolutionary perspective, the human endometrium is highly developed in order to accommodate a hemochorioendothelial type of placentation. Endometrial development of a magnitude similar to that observed in women, that is with special spiral (or coiling) arteries, is restricted to only the catarrhine primates—such as humans, great apes, and Old World monkeys. Trophoblasts of the blastocyst invade these endometrial arteries during implantation and placentation to establish uteroplacental vessels.
«Over the centuries, numerous scientists have devoted their lives to curing the ailments that have plagued mankind. While some diseases (such as polio) have been heroically defeated, others still kill millions of people every year. HIV/AIDS, Ebola,...» Document abstract
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school essay
date published
19/11/2007
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SummaryOver the centuries, numerous scientists have devoted their lives to curing the ailments that have plagued mankind. While some diseases (such as polio) have been heroically defeated, others still kill millions of people every year. HIV/AIDS, Ebola, and Influenza, are just some of the many diseases that are serious factors in world health today. Although no cure has been found for many of these diseases, scientists are working non-stop to eradicate them. National and world health organizations are banding together in hopes of putting an end to the many deadly diseases that face the world today. With all the attention placed on infectious diseases, however, some serious ailments fall through the cracks. Eating disorders, such as anorexia nervosa, are important health problems which afflict the world today; specifically the United States. Although anorexia has led to countless deaths in America over the past decades, little is known about the eating disorder. There is also much debate involving anorexia and other eating disorders; whether the ailments are biological or psychological, and just how serious a problem they are. Anorexia is a very serious problem in this country, and thousands of people are dying because so little is known about the devastating disease.
«Healthier mothers and babies ranks as one of the 10 great public health achievements in the United States between 1900 and 1999. At the beginning of the century, almost 1 in every 100 women giving birth in this country died of pregnancy-related...» Document abstract
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Language : english
medical studies
school essay
date published
19/11/2007
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SummaryHealthier mothers and babies ranks as one of the 10 great public health achievements in the United States between 1900 and 1999. At the beginning of the century, almost 1 in every 100 women giving birth in this country died of pregnancy-related complications, and nearly 1 of 10 infants died before age 1 year (Centers for Disease Control, 1999b). By the end of the 20th century, infant mortality had declined more than 90 percent to 7.2 per 1000 live births in 1997, and the maternal mortality rate declined almost 99 percent to 7.7 deaths per 100,000 live births in 1997.
«Medical writers have recently turned to the opening line of Charles Dickens's A Tale of Two Cities to describe these prevailing times in medicine and obstetrics as "the best of times. . . the worst of times. . ." (Grumbach, 1999; Morrison, 2000)....» Document abstract
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Language : english
medical studies
school essay
date published
19/11/2007
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SummaryMedical writers have recently turned to the opening line of Charles Dickens's A Tale of Two Cities to describe these prevailing times in medicine and obstetrics as "the best of times. . . the worst of times. . ." (Grumbach, 1999; Morrison, 2000). Why are these times at once the best and worst of times for obstetrics? There are many reasons for this, and some are now considered.
«The process of aging produces important physiologic changes in the central nervous system, including neuroanatomic, neurotransmitter, and neurophysiologic changes. These processes result in age-related symptoms and manifestations for many older...» Document abstract
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Language : english
medical studies
research papers
date published
13/11/2007
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SummaryThe process of aging produces important physiologic changes in the central nervous system, including neuroanatomic, neurotransmitter, and neurophysiologic changes. These processes result in age-related symptoms and manifestations for many older persons. These physiologic changes develop at dramatically variable rates in different older persons, however, the decline being modified by factors such as diet, environment, lifestyle, genetic predisposition, disability, disease, and side effects of drugs. These changes can result in the common age-related symptoms of benign senescence, slowed reaction time, postural hypotension, vertigo or giddiness, presbyopia, presbycusis, stiffened gait, and sleep difficulties. In the absence of disease, these physiologic changes usually result in relatively modest symptoms and little restriction in activities of daily living. These changes decrease physiologic reserve, however, and increase the susceptibility to challenges posed by disease-related, pharmacologic, and environmental stressors.
«Crohn’s Disease is a form of ileitis, or inflammation of the ileum, which is the terminal portion of the small intestine. It is characterized by abdominal pain, ulceration, and fibrous tissue buildup in the terminal portion of the ileum. This is a...» Document abstract
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Language : english
medical studies
presentation
date published
23/10/2007
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level : General public
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SummaryCrohn’s Disease is a form of ileitis, or inflammation of the ileum, which is the terminal portion of the small intestine. It is characterized by abdominal pain, ulceration, and fibrous tissue buildup in the terminal portion of the ileum. This is a relatively new disease, with proper medical diagnoses dating back only to the 1960s. Although Crohn, Ginzberg, and Oppenheimer described it in 1932 as a chronic, low grade inflammation of the terminal ileum, in 1960 it was recognized that the same disorder affected the colon and had been confused with ulcerative colitis. So, Crohn’s disease is newly recognized, with a defined clinical and pathological description dating back only to the 1960s (Chiodini, 1989).
«Bacterial transformation is the transforming of a bacterial cell using plasmids spliced with various types of DNA from other cells (Miyazaki, 201). Instead of a nucleus with chromosomes, bacterial cells have one large circular chromosome in their...» Document abstract
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Language : english
medical studies
case study
date published
23/10/2007
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level : General public
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SummaryBacterial transformation is the transforming of a bacterial cell using plasmids spliced with various types of DNA from other cells (Miyazaki, 201). Instead of a nucleus with chromosomes, bacterial cells have one large circular chromosome in their cell. They also have much smaller rings of DNA throughout their cytosol. These smaller DNA rings are the plasmids which one can manipulate and introduce into cells for transformation to occur. (Miyazaki, 203)
One example of such a manipulated plasmid is the pGLO plasmid. This is the plasmid that we used in this lab. We introduced this plasmid into E. Coli bacteria using the heat shock method. This method involves placing the transformation mixture with the bacteria and the plasmid into ice and then into a hot water bath several times. We also made use of a CaCl2 solution which made the cell walls of the cells even more permeable to the plasmids.
One example of such a manipulated plasmid is the pGLO plasmid. This is the plasmid that we used in this lab. We introduced this plasmid into E. Coli bacteria using the heat shock method. This method involves placing the transformation mixture with the bacteria and the plasmid into ice and then into a hot water bath several times. We also made use of a CaCl2 solution which made the cell walls of the cells even more permeable to the plasmids.
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