Time, Genetics and Complex Disease

Time, Genetics and Complex Disease
Author: Guang-Zhong Wang
Publisher: Frontiers Media SA
Total Pages: 148
Release: 2023-06-22
Genre: Science
ISBN: 2832503594

Biological traits and diseases tend to be very complex. Time is an aspect that deserves particular attention to study and decipher biological traits and disease mechanisms: many processes including biological rhythms, neurodevelopmental and neurodegenerative mechanisms, and aging have a time-dependent trajectory. Biological rhythms, such as circadian rhythms are a reflection of biological processes over 24 hours. In the case of developmental and aging processes, they reflect biological activities over a much longer time scale, typically across years or even decades. In recent years these research fields have been cross-fertilizing each other. Examples include apparent alterations of circadian regulation in adult and aging individuals and a potential link between circadian disruption and Autism Spectrum Disorders, Alzheimer’s Disease, and Major Depressive Disorder. Recent research aimed at decoding these time-related complexities has led to the implementation and utilization of various -omics methods. Transcriptomics and proteomics have matured into “standard” methods for profiling expression changes on a large scale across different time points. Single-cell sequencing technology will gain popularity for decoding cell-type diversity. With regard to data analysis, the identification of differentially expressed genes and proteins across time is of great interest. Granted, there are also topic-specific methods too. For circadian rhythm research, molecules that show rhythmic activity signals are of prime interest, whereas for life span studies the major focus is the identification of genes whose expression changes over long time periods. These topic-specific research methods can greatly benefit from each other’s expertise.

Genes, Behavior, and the Social Environment

Genes, Behavior, and the Social Environment
Author: Institute of Medicine
Publisher: National Academies Press
Total Pages: 385
Release: 2006-12-07
Genre: Social Science
ISBN: 0309101964

Over the past century, we have made great strides in reducing rates of disease and enhancing people's general health. Public health measures such as sanitation, improved hygiene, and vaccines; reduced hazards in the workplace; new drugs and clinical procedures; and, more recently, a growing understanding of the human genome have each played a role in extending the duration and raising the quality of human life. But research conducted over the past few decades shows us that this progress, much of which was based on investigating one causative factor at a time—often, through a single discipline or by a narrow range of practitioners—can only go so far. Genes, Behavior, and the Social Environment examines a number of well-described gene-environment interactions, reviews the state of the science in researching such interactions, and recommends priorities not only for research itself but also for its workforce, resource, and infrastructural needs.

It Takes a Genome

It Takes a Genome
Author: Greg Gibson
Publisher: FT Press
Total Pages: 207
Release: 2008-12-24
Genre: Science
ISBN: 0132704218

Human beings have astonishing genetic vulnerabilities. More than half of us will die from complex diseases that trace directly to those vulnerabilities, and the modern world we’ve created places us at unprecedented risk from them. In It Takes a Genome, Greg Gibson posits a revolutionary new hypothesis: Our genome is out of equilibrium, both with itself and its environment. Simply put, our genes aren’t coping well with modern culture. Our bodies were never designed to subsist on fat and sugary foods; our immune systems weren’t designed for today’s clean, bland environments; our minds weren’t designed to process hard-edged, artificial electronic inputs from dawn ‘til midnight. And that’s why so many of us suffer from chronic diseases that barely touched our ancestors. Gibson begins by revealing the stunningly complex ways in which multiple genes cooperate and interact to shape our bodies and influence our behaviors. Then, drawing on the very latest science, he explains the genetic “mismatches” that increasingly lead to cancer, diabetes, inflammatory and infectious diseases, AIDS, depression, and senility. He concludes with a look at the probable genetic variations in human psychology, sharing the evidence that traits like introversion and agreeableness are grounded in equally complex genetic interactions. It Takes A Genome demolishes yesterday’s stale debates over “nature vs. nurture,” introducing a new view that is far more intriguing, and far closer to the truth. See how broken genes cause cancer Meet the body’s “genetic repairmen”—and understand what happens when they fail The growing price of the modern lifestyle Why one-third of all Westerners have obesity, Type 2 diabetes, or other signs of “metabolic syndrome” The Alzheimer’s generation Why some of us are predisposed to dementia What’s really normal: the deepest lessons of the human genome The remarkable diversity of physical and emotional “normality”

Genetic Dissection of Complex Traits

Genetic Dissection of Complex Traits
Author: D. C. Rao
Publisher: Academic Press
Total Pages: 632
Release: 2001
Genre: Medical
ISBN:

Genetic Dissection of Complex Traits will present the full range of methodologies that are essential for understanding the basis of human genetic disorders, the origin of such diseases, and theories on how to determine one's genetic predisposition to certain genetic diseases.

Current Topics in Human Genetics

Current Topics in Human Genetics
Author: Hong-wen Deng
Publisher: World Scientific
Total Pages: 963
Release: 2007
Genre: Medical
ISBN: 9812790810

Analogies play a fundamental role in science. To understand how and why, at a given moment, a certain analogy was used, one has to know the specific, historical circumstances under which the new idea was developed. This historical background is never presented in scientific articles and quite rarely in books. For the general reader, the undergraduate or graduate student who learns the subject for the first time, but also for the practitioner who looks for inspiration or who wants to understand what his colleague working in another field does, these historical circumstances can be fascinating and useful. This book discusses a series of analogy effects in subatomic physics, the prediction and theory of which the author has contributed to in the last 50 years. These phenomena are presented at a level accessible to the non-specialist, without formulae but with emphasis on the personal and historical background: memoirs of meetings, discussions and correspondence with collaborators and colleagues. As such, besides its scientific aspects, the book constitutes an absorbing witness account of a holocaust survivor who subsequently illegally crossed the Iron Curtain to escape communist persecution.

Understanding Racial and Ethnic Differences in Health in Late Life

Understanding Racial and Ethnic Differences in Health in Late Life
Author: National Research Council
Publisher: National Academies Press
Total Pages: 184
Release: 2004-09-08
Genre: Social Science
ISBN: 0309165865

As the population of older Americans grows, it is becoming more racially and ethnically diverse. Differences in health by racial and ethnic status could be increasingly consequential for health policy and programs. Such differences are not simply a matter of education or ability to pay for health care. For instance, Asian Americans and Hispanics appear to be in better health, on a number of indicators, than White Americans, despite, on average, lower socioeconomic status. The reasons are complex, including possible roles for such factors as selective migration, risk behaviors, exposure to various stressors, patient attitudes, and geographic variation in health care. This volume, produced by a multidisciplinary panel, considers such possible explanations for racial and ethnic health differentials within an integrated framework. It provides a concise summary of available research and lays out a research agenda to address the many uncertainties in current knowledge. It recommends, for instance, looking at health differentials across the life course and deciphering the links between factors presumably producing differentials and biopsychosocial mechanisms that lead to impaired health.

Quantitative genetics and complex trait analysis in humans; the genetic basis of complex diseases

Quantitative genetics and complex trait analysis in humans; the genetic basis of complex diseases
Author: Christine Langhoff
Publisher: GRIN Verlag
Total Pages: 12
Release: 2003-06-07
Genre: Science
ISBN: 3638195252

Essay from the year 2002 in the subject Biology - Genetics / Gene Technology, grade: 2.1 (B), Oxford University (New College), language: English, abstract: Ultimately, the goal of genetics is the analysis of the genotype of organisms. But the genotype can be identified – and therefore studied – only through its phenotypic effect. This means that two genotypes are recognised as different from each other because the phenotypes of their carriers are different. A problem can be seen with this approach as the actual variation between organisms is usually quantitative, not qualitative. Many different genotypes may have the same average phenotype. At the same time, because of environmental variation, two individuals of the same genotype may not have the same phenotype. This lack of a one-to-one correspondence between genotype and phenotype obscures underlying Mendelian genetics. I am going to explore the use of various statistical techniques for studying quantitative traits with application to behavioural traits. I am also going to examine whether there are behavioural traits with sufficiently high heritabilities to give hope for gene searches and I am going to discuss the difficulties that confront molecular geneticists regarding psychiatric genetics.

Advances in the Study of Genetic Disorders

Advances in the Study of Genetic Disorders
Author: Kenji Ikehara
Publisher: BoD – Books on Demand
Total Pages: 488
Release: 2011-11-21
Genre: Medical
ISBN: 9533073055

The studies on genetic disorders have been rapidly advancing in recent years as to be able to understand the reasons why genetic disorders are caused. The first Section of this volume provides readers with background and several methodologies for understanding genetic disorders. Genetic defects, diagnoses and treatments of the respective unifactorial and multifactorial genetic disorders are reviewed in the second and third Sections. Certainly, it is quite difficult or almost impossible to cure a genetic disorder fundamentally at the present time. However, our knowledge of genetic functions has rapidly accumulated since the double-stranded structure of DNA was discovered by Watson and Crick in 1956. Therefore, nowadays it is possible to understand the reasons why genetic disorders are caused. It is probable that the knowledge of genetic disorders described in this book will lead to the discovery of an epoch of new medical treatment and relieve human beings from the genetic disorders of the future.

Clinical Genetics and Genomics of Aging

Clinical Genetics and Genomics of Aging
Author: Juan Carlos Gomez-Verjan
Publisher: Springer Nature
Total Pages: 274
Release: 2020-04-13
Genre: Medical
ISBN: 3030409554

The world population is rapidly aging—it is estimated that by 1950, around 17% of the population will be elderly. In this context, aging involves several physiological, psychological and highly complex social processes that vary from one person to another. For a long time, medical care for older adults has focused on treating chronic, age-related diseases and their associated consequences. Recently, biomedical research brings a novel point of view to develop more effective interventions by targeting the aging process itself rather than separate conditions. There is a growing number of reports indicating that aging is driven by several interconnected mechanisms and biological components referred to as the molecular pillars of aging. Interfering with these mechanisms could help to treat, prevent, and understand the development of age-related diseases and associated syndromes. This book provides a clinical perspective and general update on biomedical and genetic research in aging, moving from an update in the molecular pillars of aging to a perspective of the most recent pharmacological, clinical, and diagnostic applications using genomic approaches and techniques. While this book focuses on the specifics of genetics and genomics, it also adopts a clinical perspective of geroscience, which seeks to understand the genetic, molecular and cellular mechanisms that make aging an important risk factor and, sometimes, a determining factor in the diseases and common chronic conditions of older people. Additionally, Clinical Genetics and Genomics of Aging is a significant contribution to support aging research, as it shows that collaboration across disciplines is relevant to progress in the field. As more and more people benefit from increased longevity, clinician and researchers will be empowered by this knowledge to contribute to the progress of aging research.

Computational Genetics and Genomics

Computational Genetics and Genomics
Author: Gary Peltz
Publisher: Springer Science & Business Media
Total Pages: 309
Release: 2007-11-05
Genre: Medical
ISBN: 1592599303

Ultimately, the quality of the tools available for genetic analysis and experimental disease models will be assessed on the basis of whether they provide new information that generates novel treatments for human disease. In addition, the time frame in which genetic discoveries impact clinical practice is also an important dimension of how society assesses the results of the significant public financial investment in genetic research. Because of the investment and the increased expectation that new tre- ments will be found for common diseases, allowing decades to pass before basic discoveries are made and translated into new therapies is no longer acceptable. Computational Genetics and Genomics: Tools for Understanding Disease provides an overview and assessment of currently available and developing tools for genetic analysis. It is hoped that these new tools can be used to identify the genetic basis for susceptibility to disease. Although this very broad topic is addressed in many other books and journal articles, Computational Genetics and Genomics: Tools for Understanding Disease focuses on methods used for analyzing mouse genetic models of biomedically - portant traits. This volume aims to demonstrate that commonly used inbred mouse strains can be used to model virtually all human disea- related traits. Importantly, recently developed computational tools will enable the genetic basis for differences in disease-related traits to be rapidly identified using these inbred mouse strains. On average, a decade is required to carry out the development process required to demonstrate that a new disease treatment is beneficial.