By A. Ressel. The Boston Architectural Center. 2018.
The Committee’s assigned task was to “explore the feasibility and need purchase cialis black 800 mg line erectile dysfunction suction pump, and develop a potential framework order cialis black 800 mg on-line erectile dysfunction and diabetes leaflet, for creating a ‘New Taxonomy’ of human diseases based on molecular biology. Moreover, the Committee clearly recognized that developing and implementing a Knowledge Network of Disease has the unique potential to go far beyond classification of disease to act as a catalyst that would help to revolutionize the way research is done and patients are treated. Patient 1 has a high likelihood of overcoming her life-threatening disease and going on to live a long, healthy, and productive life. These prospects are a direct result of a new ability to recognize, based on molecular analyses, the precise type of breast cancer she has and to target a rational therapy to her disease. The Committee believes that the best prospects for creating a similarly bright future for Patient 2 lies in achieving a similarly precise understanding of his disease by creating a Knowledge Network of Disease and an associated New Taxonomy. The Committee recognized two key points about its charge: first, development of an improved disease taxonomy is only one facet, albeit an important one, of the challenge of leveraging advances in biomedical research to achieve better health outcomes for patients; secondly, no single stream of activity—led by any single segment of the biomedical research community—can tackle even this limited goal on its own. Both these points suggested that we could best address our charge by framing the “new-taxonomy” challenge broadly. Many of the conclusions and recommendations could apply, as well, to other challenges in “translational research” such as evaluating and refining existing treatments and developing new ones. However, disease classification is inextricably linked to all progress in medicine, and the Committee took the view that an ambitious initiative to address this challenge—and particularly to modernize the “discovery model” for the needed research —is an excellent place to start. The Committee thinks that the key to success lies in building new relationships that must span the whole spectrum of research and patient-care activities that comprise American medicine. As discussed in Chapter 2, the Committee thinks that now is a propitious time to confront the challenge of developing a Knowledge Network of Disease and deriving a New Taxonomy from it because of changes that are sweeping across basic and translational research, information technology, drug development, public attitudes, and the health-care-delivery system. Our recommendations seek to empower stakeholder communities by providing them with informational resources—the Information Commons, the Knowledge Network, and the New Taxonomy itself—that would transform the way they work and make decisions. We make no specific promises about the benefits that would ensue as this transformation occurs but have every confidence that this initiative would be a powerful, constructive force for change throughout a large enterprise that plays an increasingly central role in science, technology, the economy, and each of our lives—and one that is notoriously difficult to reform. At the core of the Committee’s optimism is a conviction that dramatic advances in biological knowledge can be coupled more effectively than they are now to the goal of improving the health outcomes of individual patients. Biology has flourished in the 50+ years since the discovery of the molecular basis of inheritance. Toward Precision Medicine: Building a Knowledge Network for Biomedical Research and a New Taxonomy of Disease 65 Genome Project, genetics is in a “golden age” of discovery. Sequence similarity between genes studied in fruit flies and those studied in humans allows nearly instant recognition of the potential medical relevance of the most basic advances in biochemistry and cell biology. Increasingly, this process also works in reverse: unusual human patients call attention to molecules and biochemical pathways whose importance in basic biology had been overlooked or was otherwise inaccessible. Indeed, there are already many areas of basic biology in which human studies are leading the way to deep new insights into the way organisms work. For the simple reason that one can ask a research subject what she sees when looking at a pattern of light—instead of having to develop a crude behavioral test to find out whether she sees anything at all—we know far more about the molecular details of light reception in humans than we could ever have learned from studying mice. Particularly as biomedical research puts an increasing emphasis on unraveling the molecular underpinnings of behavior, the advantages of starting research studies with humans, rather than model organisms, are likely to grow. Experience tells us that translation of intensifying knowledge of basic biology into clinical advances is a daunting task. Furthermore, the Committee shares the sense that basic biology is at an “inflection point” in which there is every reason to expect increasing payoffs from the large investments in basic science that have brought us to this point. However, the grand challenge of coupling basic science more effectively to medicine will require a rethinking of current practices on a scale commensurate with the challenge. The Committee regards the initiative it proposes to develop the tripartite Information Commons, Knowledge Network, and New Taxonomy, as having the potential to rise to this level. Information technology is the key contributor to the technological convergence the Committee perceives. Information technology, quite simply, has made the rise of data-intensive biology possible: molecular biology, as now practiced, could not exist without modern computing systems. In medicine, information technology offers perhaps the best hope of increasing efficiency and improving our collective learning about what works and what does not. In a mere 20 years, people have made the transition from regarding most human knowledge as locked away in the dusty backrooms of research libraries to expecting it to be at their finger tips. Understandably, the public is losing patience with barriers to the sharing and dissemination of information.
Longitudinal studies generally supported dietary fat as a predic- tive factor in the development of obesity (Lissner and Heitmann order cialis black 800mg otc erectile dysfunction drugs without side effects, 1995) buy generic cialis black 800mg erectile dysfunction kits. However, bias in subject participation, retention, and underreporting of intake may limit the power of these epidemiological studies to assess the relationship between dietary fat and obesity or weight gain (Lissner et al. Another line of evidence often cited to indicate that dietary fat is not an important contributor to obesity is that although there has been a reduction in the percent of energy from fat consumed in the United States, there has been an increase in energy intake and a marked gain in average weight (Willett, 1998). Survey data showed an increase in total energy intake over this period (McDowell et al. Another study that used food supply data showed that fat intake may indeed be rising in the United States (Harnack et al. Several mechanisms have been proposed whereby high fat intakes could lead to excess body accumulation of fat. Foods containing high amounts of fat tend to be energy dense, and the fat is a major contributor to the excess energy con- sumed by persons who are overweight or obese (Prentice, 2001). The energy density of a food can be defined as the amount of metabolizable energy per unit weight or volume (Yao and Roberts, 2001); water and fat are the main determinants of dietary energy density. Energy density is an issue of interest to the extent that it influences energy intake and thus plays a role in energy regulation, weight maintenance, and the subsequent development of obesity. Three theoretical mechanisms have been identified by which dietary energy density may affect total energy intake and hence energy regulation (Yao and Roberts, 2001). Some studies suggest that, at least in the short- term, individuals tend to eat in order to maintain a constant volume of food intake because stomach distension triggers vagal signals of fullness (Duncan et al. Thus, consumption of high energy-dense foods could lead to excess energy intake due to the high energy density to small food volume ratio. A survey of American adults reported that taste is the primary influence for food choice (Glanz et al. In single-meal studies, high palatability was also associated with increased food consumption (Bobroff and Kissileff, 1986; Price and Grinker, 1973; Yeomans et al. These results suggest that high energy-dense foods may be overeaten because of effects related to their high palatability. The third mechanism is that energy-dense foods reduce the rate of gastric emptying (Calbet and MacLean, 1997; Wisen et al. This reduction, however, does not occur proportionally to the increase in energy density. Although energy-dense foods reduce the rate at which food leaves the stomach, they actually increase the rate at which energy leaves the stomach. Thus, because energy-containing nutrients are digested more quickly, nutrient levels in the blood fall quicker and hunger returns (Friedman, 1995). While a subjective measure, highly palatable meals have also been shown to produce an increased glycemic response compared with less palatable meals that contain the same food items that are com- bined in different ways (Sawaya et al. This suggests a generalized link among palatability, gastric emptying, and glycemic response in the underlying mechanisms determining the effects of energy density on energy regulation. Researchers have used instruments such as visual analogue scales to measure differences in appetite sensations (e. A number of studies have been conducted in which preloads of differing energy density were given and hunger and satiety were measured either at the subsequent meal or for the remainder of the day. In the studies that administered preloads that had constant volume but different energy content (energy density was altered by chang- ing dietary fat content), there was no consistent difference in subsequent satiety or hunger between the various test meals (Durrant and Royston, 1979; Green et al. However, in those studies using isoenergetic preloads that differed in volume (energy density was altered by changing dietary fat content), there was consistently increased satiety and reduced hunger after consumption of the low energy-dense preload meals (i. It has been reported, however, that diets low in fat and high in carbo- hydrate may lead to more rapid return of hunger and increased snacking between meals (Ludwig et al. Because individuals were blinded to the dietary content of the treatment diets, the results from these studies demonstrate the short- term effects of energy density after controlling for cognitive influences on food intake. It is important that cognitive factors are taken into account during the interpretation of results of preload studies. When individuals were aware of dietary changes, they generally (Ogden and Wardle, 1990; Shide and Rolls, 1995; Wooley, 1972), but not always (Mattes, 1990; Rolls et al. In well-controlled, short-term intervention studies lasting several days or more, high fat diets were consistently associated with higher spontaneous energy intake (Lawton et al. From short- and longer-term studies, volunteers consistently con- sumed less dietary energy on low fat, low energy dense diets compared to high energy-dense diets (Glueck et al.
There are many excellent books (see references) on midwifery buy cialis black 800mg online erectile dysfunction doctors jacksonville fl, which covers this in detail cheap cialis black 800 mg mastercard erectile dysfunction caused by obesity. Your medical kit should have the basic components of an emergency delivery kit: 1. You have to keep your wits about you and be ready to help if Mother Nature is having problems. Post delivery deaths from all causes dropped 95%+ when delivery attendants, midwives, and physicians started washing their hands with soap. You can also finger sweep the mouth or in a pinch put your mouth over the baby’s mouth and nose and suck gently. Clean cord, cloth strips, or cord clamps to tie off the cord, and a sterile (if possible – otherwise immaculately clean) instrument/blade/scissors to cut the cord. Neonatal tetanus from cord cutting with dirty instruments accounts for ¾ of all tetanus deaths worldwide. Do you know why they always run around boiling water & ripping up sheets in old movies featuring a delivery? The hot water is, of course, wanted for washing hands and instruments, but also hot moist packs can be placed against mom’s perineum to help relax the muscles and tissue, and allow them to stretch easier with less chance of - 111 - Survival and Austere Medicine: An Introduction tearing. This is a technique which is completely lost in modern obstetrics that works well. Also ensure that you have a hand basin immediately available for frequent hand washing. Problems are more likely to arise with the first baby, with older mothers, mothers with previous delivery complications and/or multiple previous deliveries. There are several areas where problems arise; the following is just an overview of the more common: Obstructed labour/slow progress: Midwives are experts at encouraging slowly progressing labour without medical interventions. Currently if labour fails to progress it is augmented with oxytocin or a caesarean section. When there is no prospect of vaginal delivery due to obstructed labour or malpresentation then there are two options for delivery: Forceps/suction delivery or caesarean section. The reality for most is that in a primitive situation this will be beyond the midwife; if the baby is unable to be delivered the mother will die. Breech presentations: This is where the baby is coming bottom first rather than normal headfirst. During normal birth the head moulds itself and slowly stretches the birth canal to a size it can pass through. As a consequence there is a risk of the head becoming stuck or the baby being asphyxiated before the head can be delivered. There are a number of measures, which are well described in the references aimed at delivering breech babies. If the baby dies during the birth process they can usually still be delivered without endangering the mother’s health. Infection: One of the biggest killers relating to childbirth prior to the last century was infection. It is not uncommon today particularly with more complicated deliveries but fortunately it is very responsive to antibiotics. You need to pay very close attention to antisepsis, ensure that if possible sterile gloves are worn, sterile instruments are used, and if gloves are not available that you wash your hands very thoroughly with soap and water. Early bleeding is caused by failure of the uterine muscles to contract and close off the connection site of the placenta; lacerations of the cervix especially the anterior lip, vagina, vulva; retained fragments or pieces of placenta; abnormal location of the placenta during the pregnancy (like all the way into the uterine muscle); rupture of the uterus; inversion/prolapse of the uterus; bleeding disorders & coagulopathies (blood clotting problems) either as a result on inheritance or pre-eclampsia/eclampsia. The most common cause is failure of the uterine muscles to clamp down (atony), lacerations especially the cervix, and retained placental fragments. Blood loss after delivery is normal in this amount, and assuming that mom was healthy and not severely anaemic before delivery is not a problem. Also it is normal for bleeding to continue in small amounts after the delivery, and bloody mucus (lochia) can continue for some time.
A 30-year-old man comes to the emergency department 1 hour after injuring his left knee in a volleyball game generic cialis black 800 mg with amex erectile dysfunction causes heart. He says he twisted his left leg when he fell to the floor after he and a teammate accidentally collided purchase cialis black 800mg without prescription erectile dysfunction caused by steroids. When the patient sits on the edge of the examination table, the left knee can be displaced anteriorly at an abnormal degree. A 70-year-old man is brought to the emergency department because of a 1-week history of increasingly severe left-sided lower abdominal pain and passing gas in his urine. A 60-year-old man has tenderness in the region distally between the tendons of the extensor pollicis longus and extensor pollicis brevis (anatomical snuffbox) after falling on the palm of his right hand. A 20-year-old man is brought to the emergency department 1 hour after he was involved in a motorcycle collision. On auscultation, a harsh continuous murmur is heard at the left of the sternum between the first two ribs. Arterial blood oxygen content is slightly higher in the right hand than in the left hand. A 50-year-old woman is brought to the emergency department because of severe upper abdominal pain for 24 hours. Physical examination shows jaundice and tenderness of the right upper quadrant of the abdomen. Serum studies show a bilirubin concentration of 5 mg/dL, alkaline phosphatase activity of 450 U/L, and lipase activity of 400 U/L (N=14–280). A 6-year-old boy is brought to the physician by his parents for a follow-up examination because of a heart murmur that has been present since birth. A grade 3/6 pansystolic murmur is heard maximally at the lower left to mid left sternal border. He undergoes cardiac catheterization and is found to have a higher than expected oxygen level in the right ventricle. A 32-year-old woman, gravida 2, para 2, develops fever and left lower abdominal pain 3 days after delivery of a full-term male newborn. During a study of bladder function, a healthy 20-year-old man drinks 1 L of water and delays urination for 30 minutes after feeling the urge to urinate. C - 23 - Histology Systems General Principles of Foundational Science 30%–35% Biochemistry and molecular biology Biology of cells (excludes signal transduction) Apoptosis Cell cycle and cell cycle regulation Mechanisms of dysregulation Cell/tissue structure, regulation, and function Biology of tissue response to disease Pharmacodynamic and pharmacokinetic processes Immune System 1%–5% Blood & Lymphoreticular System 1%–5% Nervous System & Special Senses 5%–10% Skin & Subcutaneous Tissue 1%–5% Musculoskeletal System 1%–5% Cardiovascular System 1%–5% Respiratory System 1%–5% Gastrointestinal System 5%–10% Renal & Urinary System 5%–10% Pregnancy, Childbirth, & the Puerperium 1%–5% Female Reproductive System & Breast 1%–5% Male Reproductive System 1%–5% Endocrine System 5%–10% - 24 - 1. Which of the following changes is most likely to occur in the endometrium after 1 year of treatment? Which of the following muscle cell components helps spread the depolarization of the muscle cell membranes throughout the interior of muscle cells? A new drug is developed that prevents the demyelinization occurring in the progress of multiple sclerosis. The drug protects the cells responsible for the synthesis and maintenance of myelin in the central nervous system. Tissue remodeling begins at this site with degradation of collagen in the extracellular matrix by which of the following proteins? A 22-year-old man is brought to the emergency department in respiratory distress 15 minutes after he was stung on the arm by a wasp. His pulse is 100/min, respirations are 30/min, and blood pressure is 100/60 mm Hg. Secretion of the molecule causing this patient’s symptoms is most likely mediated by which of the following? He is informed that he will require treatment with intramuscular vitamin B12 (cyanocobalamin) for the rest of his life. This therapy is necessary because this patient lacks which of the following types of cells? Beginning with protein synthesis in membrane-bound ribosomes, hepatocytes secrete proteins into the circulation via which of the following mechanisms? Which of the following is required to transport fatty acids across the inner mitochondrial membrane? An experiment is conducted in which the mitochondrial content of various tissues is studied. It is found that the mitochondrial content is directly proportional to the amount of energy one cell is required to generate and expend. The mitochondrial content is most likely greatest in which of the following types of cells?
8 of 10 - Review by A. Ressel
Votes: 134 votes
Total customer reviews: 134