Penetrance in genetics is the proportion of individuals carrying a particular variant of a gene (genotype) that also expresses an associated trait (phenotype). In medical genetics, the penetrance of a disease-causing mutation is the proportion of individuals with the mutation that exhibit clinical symptoms among all individuals with such mutation. For example: If a mutation in the gene responsible for a particular autosomal dominant disorder has 75% penetrance, then 75% of those with the mutation will go on to develop the disease, showing its phenotype, whereas 25% will not.
Life extension is the concept of extending the human lifespan, either modestly through improvements in medicine or dramatically by increasing the maximum lifespan beyond its generally-settled limit of 125 years. Several researchers in the area, along with "life extensionists", "immortalists", or "longevists", postulate that future breakthroughs in tissue rejuvenation, stem cells, regenerative medicine, molecular repair, gene therapy, pharmaceuticals, and organ replacement will eventually enable humans to have indefinite lifespans through complete rejuvenation to a healthy youthful condition (agerasia). The ethical ramifications, if life extension becomes a possibility, are debated by bioethicists.
A supercentenarian is a person who has reached the age of 110 years. This age is achieved by about one in 1,000 centenarians. Supercentenarians typically live a life free of major age-related diseases until shortly before the maximum human lifespan is reached.
Nutritional genomics, also known as nutrigenomics, is a science studying the relationship between human genome, human nutrition and health. People in the field work toward developing an understanding of how the whole body responds to a food via systems biology, as well as single gene/single food compound relationships. Nutritional genomics or Nutrigenomics is the relation between food and inherited genes, it was first expressed in 2001.
Personalized medicine, also referred to as precision medicine, is a medical model that separates people into different groups—with medical decisions, practices, interventions and/or products being tailored to the individual patient based on their predicted response or risk of disease. The terms personalized medicine, precision medicine, stratified medicine and P4 medicine are used interchangeably to describe this concept though some authors and organisations use these expressions separately to indicate particular nuances.
The following outline is provided as an overview of and topical guide to life extension:
In genomics, a genome-wide association study, is an observational study of a genome-wide set of genetic variants in different individuals to see if any variant is associated with a trait. GWA studies typically focus on associations between single-nucleotide polymorphisms (SNPs) and traits like major human diseases, but can equally be applied to any other genetic variants and any other organisms.
Computational epigenetics uses statistical methods and mathematical modelling in epigenetic research. Due to the recent explosion of epigenome datasets, computational methods play an increasing role in all areas of epigenetic research.
Ageing is the process of becoming older. The term refers mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal. In a broader sense, ageing can refer to single cells within an organism which have ceased dividing, or to the population of a species.
Genotype to Phenotype Databases: a Holistic Approach (GEN2PHEN) is a European project aiming to develop a knowledge web portal integrating information from the genotype to the phenotype in a unifying portal: The Knowledge Centre].
The Genomic Medicine Institute at the Cleveland Clinic is an inter-disciplinary institute and department that focuses on patient care, patient-oriented research, and outreach and education in personalized healthcare guided by genetics and genomics. It is located in the Center for Genomics Research Building in the Cleveland Clinic, in Cleveland, Ohio, United States of America.
GeneNetwork is a combined database and open-source bioinformatics data analysis software resource for systems genetics. This resource is used to study gene regulatory networks that link DNA sequence differences to corresponding differences in gene and protein expression and to variation in traits such as health and disease risk. Data sets in GeneNetwork are typically made up of large collections of genotypes and phenotypes from groups of individuals, including humans, strains of mice and rats, and organisms as diverse as Drosophila melanogaster, Arabidopsis thaliana, and barley. The inclusion of genotypes makes it practical to carry out web-based gene mapping to discover those regions of genomes that contribute to differences among individuals in mRNA, protein, and metabolite levels, as well as differences in cell function, anatomy, physiology, and behavior.
Biomarkers of aging are biomarkers that could predict functional capacity at some later age better than chronological age. Stated another way, biomarkers of aging would give the true "biological age", which may be different from the chronological age.
The National Institute of Genomic Medicine is one of Mexico's twelve national institutes under the Secretariat of Health. The institute was founded in 2004, with its official headquarters built eight years later. INMEGEN is dedicated to the development of genomic medicine for the Mexican population. The institute carried out research projects aim to improve healthcare through prevention and medical care related to oncogenomics, nutrigenomics and pharmacogenomics. INMEGEN also studies metabolic, cardiovascular, autoimmune and infectious diseases. INMEGEN collaborates with other Mexican and international institutions for the development of different projects. The current director of the institution is Francisco Xavier Soberón.
An epigenetic clock is a biochemical test that can be used to measure age. The test is based on DNA methylation levels, measuring the accumulation of methyl groups to one's DNA molecules.
B K Thelma commonly known as Bittianda Kuttapa Thelma is a professor in the Department of Genetics at the University of Delhi, South Campus, New Delhi, India. She is the Principal investigator and Co-ordinator of the Centre of excellence on Genomes Sciences and Predictive Medicine funded by the Govt. of India. She is also the Co-ordinator of a major project on newborn screening for inborn errors of metabolism in Delhi state which aims to demonstrate the feasibility of mandatory screening of newborns in the country and to generate epidemiological data for the testable IEMs in the genetically distinct Indian population, for the first time.
Nir Barzilai is the founding director of the Institute for Aging Research, the Nathan Shock Center of Excellence in the Basic Biology of Aging and the Paul F. Glenn Center for the Biology of Human Aging Research at Albert Einstein College of Medicine (Einstein). He also directs the Longevity Genes Project, a genetics study of over 600 families of centenarians and their children. The participants are all Ashkenazi Jews, a group selected for their genetic homogeneity, which makes it easier to identify significant genetic variations. Barzilai found that many of the centenarians had very high levels of HDL. Barzilai also co-founded of CohBar, Inc., a biotechnology company developing mitochondria based therapeutics to treat diseases associated with aging.
An epigenome-wide association study (EWAS) is an examination of a genome-wide set of quantifiable epigenetic marks, such as DNA methylation, in different individuals to derive associations between epigenetic variation and a particular identifiable phenotype/trait. When patterns change such as DNA methylation at specific loci, discriminating the phenotypically affected cases from control individuals, this is considered an indication that epigenetic perturbation has taken place that is associated, causally or consequentially, with the phenotype.
Steve Horvath is a German–American aging researcher, geneticist, and biostatistician. He is a professor at the University of California, Los Angeles known for developing the Horvath aging clock, which is a highly accurate molecular biomarker of aging, and for developing weighted correlation network analysis. His work on the genomic biomarkers of aging, the aging process, and many age related diseases/conditions has earned him several research awards. Horvath is a principal investigator at the anti-aging startup Altos Labs and co-founder of nonprofit Clock Foundation.
Nicole Soranzo is an Italian-British senior group leader in human genetics at the Wellcome Sanger Institute, Professor of Human Genetics at the University of Cambridge. She is an internationally recognised Human Geneticist who has focused on the application of cutting edge genomic technologies to study the spectrum of human genetic variation associated with cardio-metabolic and immune diseases. She has led many large-scale discovery efforts including more than 1,000 novel genetic variants associated with cardio-metabolic diseases and their risk factors as well as establishing the HaemGen consortium, which is a worldwide effort to discover genetic determinants of blood cell formation and also interpretation of the downstream consequences of sequence variation through a host of integrative analyses and functional approaches.
