400 research outputs found
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Hypoimmunogenic Derivatives of Induced Pluripotent Stem Cells Evade Immune Rejection in Fully Immunocompetent Allogeneic Recipients
Dyslipidemia: evidence of efficacy of the pharmacological and non-pharmacological treatment in the elderly
The clinical decision to control risk factors for cardiovascular disease (CVD) in the elderly takes the followings into consideration: (1) the elderly life expectancy; (2) the elderly biological age and functional capacity; (3) the role of cardiovascular disease in the elderly group; (4) the prevalence of risk factors in the elderly; and (5) The effectiveness of treatment of risk factors in the elderly. A large number of studies showed the efficacy of secondary and primary prevention of dyslipidemia in the elderly. However, the only trial that included patients over 80 years was the Heart Protection Study (HPS). Statins are considered the first line therapy for lowering low-density lipoprotein cholesterol (LDL-C). Because lifestyle changes are very difficult to achieve, doctors in general tend to prescribe many drugs to control cardiovascular risk factors. However, healthy food consumption remains a cornerstone in primary and secondary cardiovascular prevention and should be implemented by everyone
High Preservation of CpG Cytosine Methylation Patterns at Imprinted Gene Loci in Liver and Brain of Aged Mice
A gradual loss of the correct patterning of 5-methyl cytosine marks in gene promoter regions has been implicated in aging and age-related diseases, most notably cancer. While a number of studies have examined DNA methylation in aging, there is no consensus on the magnitude of the effects, particularly at imprinted loci. Imprinted genes are likely candidate to undergo age-related changes because of their demonstrated plasticity in utero, for example, in response to environmental cues. Here we quantitatively analyzed a total of 100 individual CpG sites in promoter regions of 11 imprinted and non-imprinted genes in liver and cerebral cortex of young and old mice using mass spectrometry. The results indicate a remarkably high preservation of methylation marks during the aging process in both organs. To test if increased genotoxic stress associated with premature aging would destabilize DNA methylation we analyzed two DNA repair defective mouse models showing a host of premature aging symptoms in liver and brain. However, also in these animals, at the end of their life span, we found a similarly high preservation of DNA methylation marks. We conclude that patterns of DNA methylation in gene promoters of imprinted genes are surprisingly stable over time in normal, postmitotic tissues and that the
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LASS hardware processor
The problems of data analysis with hardware processors are reviewed, and a description is given for a programmable processor. This processor, the 168/E, was designed for use in the LASS multi-processor system; it has an execution speed comparable to that of the IBM 370/168 and uses the subset of IBM 370 instructions appropriate to the LASS analysis task. 2 figures, 2 tables
Natural history of dental caries: Baseline characteristics of the VicGen birth cohort study
Background: Early-life dental caries is a major global health problem. Children's
first dental visit is recommended at 2 years age. The VicGeneration (VicGen) oral
health birth cohort study aims to understand the multifactorial nature of early childhood
caries. This report describes the baseline characteristics of children in the
VicGen study.
Methods: We merged data between the first (at birth) and fourth waves (18 month
age) to assess dental caries among children (primary outcome) and other oral diseases
(secondary outcomes) employing t tests, chi-square tests, Fisher's exact tests,
and Cochran-Mantel-Haenszel tests using IBM-SPSS(v25).
Results: Most children lived in metros with two-parent families. Most guardians
were women graduated from high school. Twenty-seven of 389 (6.94%) 18-monthold
children experienced dental caries. More children living in rural areas (vs. urban)
experienced caries. Females were more likely to experience caries (OR: 2.16). Several
children had other oral health problems. In early life, children's oral examination was
conducted by midwives, breastfeeding/lactation consultants, hospital nurses, speech
pathologists, and breastfeeding clinic staff.
Conclusion: VicGen baseline characteristics show that almost 7% of the 18-monthold
children experienced caries. There is a need to advance children's recommended
first dental visit date and to train early-life healthcare professionals about oral
diseases
Inseticidas no controle da transmissão de begomovírus ao tomateiro.
O objetivo deste trabalho foi avaliar a interferencia dos inseticidas na transmissão de begomovírus ao tomateiro.Resumo 1321
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