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Prospective, multiyear epidemiologic studies have proven to be highly effective in discovering preventable risk factors for chronic disease. Investigations such as the Framingham Heart Study have produced blueprints for disease prevention and saved millions of lives and billions of dollars. To discover preventable environmental risk factors for disease in children, the US Congress directed the National Institute of Child Health and Human Development, through the Children's Health Act of 2000, to conduct the National Children's Study. The National Children's Study is hypothesis-driven and will seek information on environmental risks and individual susceptibility factors for asthma, birth defects, dyslexia, attention-deficit/hyperactivity disorder, autism, schizophrenia, and obesity, as well as for adverse birth outcomes. It will be conducted in a nationally representative, prospective cohort of 100,000 US-born children. Children will be followed from conception to 21 years of age. Environmental exposures (chemical, physical, biological, and psychosocial) will be assessed repeatedly during pregnancy and throughout childhood in children's homes, schools, and communities. Chemical assays will be performed by the Centers for Disease Control and Prevention, and banks of biological and environmental samples will be established for future analyses. Genetic material will be collected on each mother and child and banked to permit study of gene-environment interactions. Recruitment is scheduled to begin in 2007 at 7 Vanguard Sites and will extend to 105 sites across the United States. The National Children's Study will generate multiple satellite studies that explore methodologic issues, etiologic questions, and potential interventions. It will provide training for the next generation of researchers and practitioners in environmental pediatrics and will link to planned and ongoing prospective birth cohort studies in other nations. Data from the National Children's Study will guide development of a comprehensive blueprint for disease prevention in children.
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PMID:The National Children's Study: a 21-year prospective study of 100,000 American children. 1707 92

The present study was undertaken to evaluate the nutritional status of children with special needs in Alexandria city, on the basis of anthropometric measures. The following variables were determined in a sample of 278 disabled children (171 males, 107 females) aged 6 to 24 years, recruited from five specialized day care centers for retarded children in Alexandria: birth order, type of disability, socioeconomic status, body weight, height, body mass index (BMI) and hemoglobin level. Mentally retarded children represent the highest proportion of subjects followed by Down's syndrome and autism. There is an increase in the mean body weight of males with the increase in age among the three type of disability except at age from 14 to 18 years, while there is a fluctuation in the mean body weight between ages and disability among females. Down syndrome groups at all ages are shorter than the other groups, while disabled males are taller than females at all ages. Based on BMI for age, the incidence of obesity was higher among Down's syndrome and mentally retarded females and among autistic males (19.8%, 16.1% of males versus 15.8%, 6.7% of females with mental retardation and autism were underweight). Majority of subjects have mild degree anemia. Hemoglobin levels below the cut-off levels issued by WHO were found higher among autistic and mentally retarded females. The levels were comparable among males with autism and mental retardation and among Down's syndrome males and females. The results also revealed that underweight, overweight and obesity were more common in subjects who showed an evidence of anemia.
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PMID:Assessment of the nutritional status of children with special needs in Alexandria. Part II: Anthropometric measures. 1726 6

The Prader-Willi phenotype (PWP) of fragile X syndrome (FXS) is associated with obesity and hyperphagia similar to Prader-Willi syndrome (PWS), but without cytogenetic or methylation abnormalities at 15q11-13. Thirteen cases of PWP and FXS are reported here that were identified by obesity and hyperphagia. Delayed puberty was seen in 5 of 9 cases who had entered puberty, a small penis or testicles in seven of 13 cases, and infant hypotonia and/or a poor suck in seven of 13 cases. Autism spectrum disorder occurred in 10 of 13 cases, and autism was diagnosed in seven of 13 cases. We investigated cytoplasmic interacting FMR1 protein (CYFIP) expression, which is a protein that interacts with FMR1 protein (FMRP) because the gene for CYFIP is located at 15q11-13. CYFIP mRNA levels were significantly reduced in our patients with the PWP and FXS compared to individuals without FXS (p < .001) and also individuals with FXS without PWP (p = .03).
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PMID:The Prader-Willi phenotype of fragile X syndrome. 1743 64

Genetic diversity, most notably through single nucleotide polymorphisms and copy-number variation, together with specific environmental exposures, contributes to both disease susceptibility and drug response variability. It has proved difficult to isolate disease genes that confer susceptibility to complex disorders, and as a consequence, even fewer genetic variants that influence clinical drug responsiveness have been uncovered. As such, the candidate gene approach has largely failed to deliver and, although the family-based linkage approach has certain theoretical advantages in dealing with common/complex disorders, progress has been slower than was hoped. More recently, genome-wide association studies have gained increasing popularity, as they enable scientists to robustly associate specific variants with the predisposition for complex disease, such as age-related macular degeneration, Type 2 diabetes, inflammatory bowel disease, obesity, autism and leukemia. This relatively new methodology has stirred new hope for the mapping of genes that regulate drug response related to these conditions. Collectively, these studies support the notion that modern high-throughput single nucleotide polymorphism genotyping technologies, when applied to large and comprehensively phenotyped patient cohorts, will readily reveal the most clinically relevant disease-modifying and drug response genes. This review addresses both recent advances in the genotyping field and highlights from genome-wide association studies, which have conclusively uncovered variants that underlie disease susceptibility and/or variability in drug response in common disorders.
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PMID:Recent development in pharmacogenomics: from candidate genes to genome-wide association studies. 1762 46

To learn about the lives of young adults with ASD, families with children born 1974-1984, diagnosed as preschoolers and followed into adolescence were contacted by mail. Of 76 eligible, 48 (63%) participated in a telephone interview. Global outcome scores were assigned based on work, friendships and independence. At mean age 24, half had good to fair outcome and 46% poor. Co-morbid conditions, obesity and medication use were common. Families noted unmet needs particularly in social areas. Multilinear regression indicated a combination of IQ and CARS score at age 11 predicted outcome. Earlier studies reported more adults with ASD who had poor to very poor outcomes, however current young people had more opportunities, and thus better results were expected.
J Autism Dev Disord 2008 Apr
PMID:Young adult outcome of autism spectrum disorders. 1776 27

The Declaration of Nutrition, Health, and Intelligence for the Child-to-be is an urgent cry from the unborn child for a life-span of nutrients for physical and mental wellness. It is a proclamation of paramount importance for everyone involved in child development: parents, health professionals, teachers, government agencies, all producers of food--and children, so they may learn how to feed themselves well. The Declaration of Olympia on Nutrition and Fitness, 1996, came from a group pf nutritional scientists and medical doctors to commemorate the Olympic Games' 100th anniversary. They based it on the health principles of Hippocrates: genetics, the age of the individual, the powers of various foods, and exercise. Following today's vast wealth of nutritional research and expressing it with my teaching experience, I have revitalized the Declaration of Olympia by writing from the heart of the little learner and the hope of the child-to-be. The nutrients implicated in healthy reproduction and lifelong health include B vitamins, particularly B1, B6, folate, B1312 antioxidants, particularly vitamins C and E: minerals such as iron, zinc, magnesium, selenium, iodine, and copper; and essential fatty acids, particularly DHA. These nutrients also lower the risk of neural tube defects: autism, dyslexia, Down's syndrome: childhood cancers, obesity, and defective fetal cell membranes associated with maternal diabetes. Our metabolism is hugely influenced also by activity and by affection. Today's foods are often processed beyond the cells' recognition and can result in neurological and physical morbidity and mortality. A diet of unprocessed free-range animals and seafood: legumes, deep-colored vegetables and fruits: nuts, seeds, and whole grains, germ and bran, reinstates nutritional potency.
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PMID:The declaration of nutrition, health, and intelligence for the child-to-be. 1830 69

Since their discovery, the safety of artificial sweeteners has been controversial. Artificial sweeteners provide the sweetness of sugar without the calories. As public health attention has turned to reversing the obesity epidemic in the United States, more individuals of all ages are choosing to use these products. These choices may be beneficial for those who cannot tolerate sugar in their diets (e.g., diabetics). However, scientists disagree about the relationships between sweeteners and lymphomas, leukemias, cancers of the bladder and brain, chronic fatigue syndrome, Parkinson's disease, Alzheimer's disease, multiple sclerosis, autism, and systemic lupus. Recently these substances have received increased attention due to their effects on glucose regulation. Occupational health nurses need accurate and timely information to counsel individuals regarding the use of these substances. This article provides an overview of types of artificial sweeteners, sweetener history, chemical structure, biological fate, physiological effects, published animal and human studies, and current standards and regulations.
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PMID:The potential toxicity of artificial sweeteners. 1860 21

Five medical conditions are responsible for approximately $250 billion in annual health care costs in the United States: obesity, asthma, diabetes, schizophrenia, and autism. For some individuals, these conditions may begin with in utero exposures. However, firm evidence about the links between these conditions and such exposures has yet to be established. The National Children's Study (NCS) is designed to examine how maternal health and the fetal environment are associated with these and other conditions, including birth defects. The NCS will assess how hundreds of social, physical, and environmental exposures affect the health of 100,000 children. The results will provide a data resource from which to develop effective preventive strategies, establish health and safety guidelines, find cures and interventions, influence legislation, and shape public health programs for families and children. The purpose of this article is to describe some of what is known about teratogenesis, how child and adult health can be affected by in utero exposures, and Minnesota's role in the NCS.
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PMID:Prenatal environmental exposures and child health: Minnesota's role in the National Children's Study. 1899 Sep 17

This is a case report of macrosomia, obesity, macrocephaly and ocular abnormalities (MOMO syndrome) associated with autism. Studies on genetic or environmental syndromes associated with autism can provide genetic markers or uncover relevant events, and are very important for the definition of autism subgroups in future molecular research.
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PMID:MOMO syndrome associated with autism: a case report. 1904 2

Probiotics produce a beneficial impact on the host by improving the endogenous flora. It has been advocated that nonpathogenic bacteria like Lactobacillus and Bifidobacterium may undergo antagonistic interactions with other bacterial strains and can be used to control pathogenic bacteria. Novel modes of therapeutic and prophylactic interventions are based on their consumption either alone or in combination with prebiotics. Usefulness of probiotics has been implicated in allergies, cancer, AIDS, and respiratory and urinary tract infections. In this review we have listed various findings suggesting their benefits in alleviating symptoms associated with aging, fatigue, and autism. Newer claims indicating their role in reducing the risks of osteoporosis, obesity, and possibly type 2 diabetes are also discussed. Considering the wide array of such activities, the present review comprehensively elaborates upon the proposed benefits of probiotics. The concept of synbiotics, a combination of probiotics and prebiotics beneficially affecting the survival and implantation of such live organisms, is also discussed. Available probiotic strains, their commercial preparations, and newer approaches to improve the efficacy and overcome limitations of the therapy are also discussed in relation to the future of probiotic therapy. Considering that the purported claims about disease risk reduction are tentative, the review also encompasses various aspects regarding the safety of probiotics and their possible future role in disease prevention.
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PMID:Probiotics: delineation of prophylactic and therapeutic benefits. 1945 24


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