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In pathology, pathogenesis is the process by which a disease or disorder develops. It can include factors which contribute not only to the onset of the disease or disorder, but also to its progression and maintenance. The word comes from Ancient Greek πάθος (pathos) 'suffering, disease', and γένεσις (genesis) 'creation'.
Autism spectrum disorders (ASD) are neurodevelopmental disorders that begin in early childhood, persist throughout adulthood, and affect three crucial areas of development: communication, social interaction and restricted patterns of behavior. There are many conditions comorbid to autism spectrum disorders such as attention-deficit hyperactivity disorder and epilepsy.
Flu season is an annually recurring time period characterized by the prevalence of an outbreak of influenza (flu). The season occurs during the cold half of the year in each hemisphere. It takes approximately two days to show symptoms. Influenza activity can sometimes be predicted and even tracked geographically. While the beginning of major flu activity in each season varies by location, in any specific location these minor epidemics usually take about three weeks to reach its pinnacle, and another three weeks to significantly diminish.
Vitamin D toxicity, or hypervitaminosis D is the toxic state of an excess of vitamin D. The normal range for blood concentration in adults is 20 to 50 nanograms per milliliter (ng/mL).
Influenza C virus is the only species in the genus Gammainfluenzavirus, in the virus family Orthomyxoviridae, which like other influenza viruses, causes influenza.
The causes of autism are environmental or genetic factors that predispose an individual to develop autism, also known as autism spectrum disorder (ASD). Many causes of autism have been proposed, but understanding of the theory of causation of autism is incomplete. Attempts have been made to incorporate the known genetic and environmental causes into a comprehensive causative framework. ASD is a neurodevelopmental disorder marked by impairments in communicative ability and social interaction and restricted/repetitive behaviors, interests, or activities not suitable for the individual's developmental stage. The severity of symptoms and functional impairment vary between individuals.
Treatments for influenza include a range of medications and therapies that are used in response to disease influenza. Treatments may either directly target the influenza virus itself; or instead they may just offer relief to symptoms of the disease, while the body's own immune system works to recover from infection.
Pantethine (bis-pantethine or co-enzyme pantethine) is a dimeric form of pantetheine, which is produced from pantothenic acid (vitamin B5) by the addition of cysteamine. Pantethine was discovered by Gene Brown, a PhD student at the time. Pantethine is two molecules of pantetheine linked by a disulfide bridge. Pantetheine is an intermediate in the production of coenzyme A by the body. Most vitamin B5 supplements are in the form of calcium pantothenate, a salt of pantothenic acid, with doses in the range of 5 to 10 mg/day. In contrast, pantethine is sold as a dietary supplement for lowering blood cholesterol and triglycerides at doses of 500 to 1200 mg/day.
Calcifediol, also known as calcidiol, 25-hydroxycholecalciferol, or 25-hydroxyvitamin D3 (abbreviated 25(OH)D3), is a form of vitamin D produced in the liver by hydroxylation of vitamin D3 (cholecalciferol) by the enzyme vitamin D 25-hydroxylase. Calcifediol can be further hydroxylated by the enzyme 25(OH)D-1α-hydroxylase, primarily in the kidney, to form calcitriol (1,25-(OH)2D3), which is the active hormonal form of vitamin D.
Charles Alan Blake Clemetson FRCOG, FRCSC, FACOG was a medical doctor, scientist and researcher who published over 48 medical papers and a three-volume monograph, Vitamin C. During his hospital and teaching career, he specialised in obstetrics and gynecology. After retirement in 1991 he devoted his time to researching and publishing papers on Barlow's disease, hypothesizing this to be a cause of shaken baby syndrome.
Robert Edgar Hope-Simpson was a general practitioner. He showed that shingles was caused by reactivation of the chickenpox virus.
Molecular epidemiology is a branch of epidemiology and medical science that focuses on the contribution of potential genetic and environmental risk factors, identified at the molecular level, to the etiology, distribution and prevention of disease within families and across populations. This field has emerged from the integration of molecular biology into traditional epidemiological research. Molecular epidemiology improves our understanding of the pathogenesis of disease by identifying specific pathways, molecules and genes that influence the risk of developing disease. More broadly, it seeks to establish understanding of how the interactions between genetic traits and environmental exposures result in disease.
In epidemiology, ecological studies are used to understand the relationship between outcome and exposure at a population level, where 'population' represents a group of individuals with a shared characteristic such as geography, ethnicity, socio-economic status of employment. What differentiates ecological studies from other studies is that the unit analysis being studied is the group, therefore inferences cannot be made about individual study participants. On the other hand, details of outcome and exposure can be generalized to the population being studied. Examples of such studies include investigating associations between units of grouped data, such as electoral wards, regions, or even whole countries.
Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and for many other biological effects. In humans, the most important compounds in this group are vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol).
Autism, formally called autism spectrum disorder (ASD) or autism spectrum condition (ASC), is a neurodevelopmental disorder characterized by deficits in social communication and social interaction, and repetitive or restricted patterns of behaviors, interests, or activities, which can include hyper- and hyporeactivity to sensory input. Autism is clinically regarded as a spectrum disorder, meaning that it can manifest very differently in each person. For example, some are nonspeaking, while others have proficient spoken language. Because of this, there is wide variation in the support needs of people across the autism spectrum.
Molecular pathological epidemiology is a discipline combining epidemiology and pathology. It is defined as "epidemiology of molecular pathology and heterogeneity of disease". Pathology and epidemiology share the same goal of elucidating etiology of disease, and MPE aims to achieve this goal at molecular, individual and population levels. Typically, MPE utilizes tissue pathology resources and data within existing epidemiology studies. Molecular epidemiology broadly encompasses MPE and conventional-type molecular epidemiology with the use of traditional disease designation systems.
Associations have been shown between vitamin D levels and several respiratory tract infections suggesting that vitamin D deficiency may predispose to infection. Outbreaks of respiratory infections occur predominantly during months associated with lower exposure to the sun. The Institute of Medicine concluded in a 2011 report that the existing data were "not consistently supportive of a causal role" for vitamin D in reducing the risk of infection. Other studies suggest that vitamin D supplementation can provide a protective role in reducing the incidence or severity of respiratory infections.
Shuji Ogino is a molecular pathological epidemiologist, pathologist, and epidemiologist. He is currently Professor of Pathology at Harvard Medical School and Brigham and Women's Hospital, and Professor in the Department of Epidemiology at Harvard T.H. Chan School of Public Health. He is also Chief of Program in MPE Molecular Pathological Epidemiology at Brigham and Women's Hospital, and an associate member of Broad Institute of MIT and Harvard. He has been known for his work on establishing a new discipline, molecular pathological epidemiology, which represents an interdisciplinary science of molecular pathology and epidemiology.
Kimmie Ng is a physician at Dana–Farber Cancer Institute who is known for her work on colorectal cancer in young patients.
Anne Magdalen Bahlke was an American physician, medical researcher, and public health official.
References
- ↑ "John J Cannell, MD, biography".
- ↑ One Physician Takes A Novel Stand Against Patients Who Smoke, by LAWRENCE K. ALTMAN. New York Times. 1988.02.09.
- 1 2 Fiske E: Standardized Test Scores: Voodoo Statistics? New York Times. 1988.02.17
- ↑ Putka G: Classroom Scandal: Cheaters in schools may not be students but their teachers. Wall Street Journal. 1988.11.02.
- ↑ Cooking the Books (standardized testing in schools): 1990.04, Sunday Today Show, NBC Television.
- ↑ Austin C: Sexual bias information sought from State Education Department. The Charleston Gazette. Charleston, WV. 1987.08.12.
- ↑ Cannell J, Friends for Education Contest. The Dirtiest Public School in Raleigh County: Display advertisement.The Register/Herald, Beckley, WV. 1986.04.13.
- ↑ Cannell, JJ (2008). "Autism and vitamin D". Med. Hypotheses. 70 (4): 750–9. doi:10.1016/j.mehy.2007.08.016. PMID 17920208.