yvette p. conley, phd associate professor of nursing and human genetics university of pittsburgh
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The Application of Genetic and Genomic Research to Nursing Science. Yvette P. Conley, PhD Associate Professor of Nursing and Human Genetics University of Pittsburgh. Discussion Today…. Some background Genetic/Genomic research approaches and tips for integration into your research - PowerPoint PPT PresentationTRANSCRIPT
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Yvette P. Conley, PhDAssociate Professor of Nursing and Human GeneticsUniversity of Pittsburgh
The Application of Genetic and Genomic Research to Nursing Science
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Discussion Today…
Some background Genetic/Genomic research approaches
and tips for integration into your research Resources of interest There is support
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The field of genetics has changed…
In the past … Our primary concern was determining what gene and mutations caused single gene disorders that had
predictable inheritance patterns (eg CF, SCA, PKU)
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The field of genetics has changed…
Now… Much of our focus is on more common, complex conditions, those of great public health concern, variability in patient experiences including symptoms, and patient outcome related phenotypes
Now… Much more complex way of looking at genetics/genomics, for example:– Gene Gene interactions– Gene Environment interactions– Individualized therapies
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Genetic…Genomic?
Genetics is used when referring to a single gene
Genomics is used when referring to the whole genome, multiple genes, gene-gene interaction
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Genomic Translational Research
Khoury MJ et al (2007) Genetics in Medicine, 9(10):665-674Khoury MJ et al (2012) Am J Public Health 102(1):34-37
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Frequently Utilized Approaches to Genetic and
Genomic Research Association
– Case/control– Family– Genome wide association studies (GWAS)
Gene Expression Epigentics/Epigenomics
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Candidate Gene Association Studies
A candidate gene association study is used when you have an educated guess about a genes involvement in the condition you’re investigating
Can use unrelated individuals or families advantage is ability to use unrelated individuals particularly if studying a complex or age-related condition, as well as phenotypes within the context of an external event – such as recovery after injury, symptoms within the context of an illness, etc.
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Association studies Usually uses a case/control design and the cases are
compared to the controls to determine if genetic variability differs significantly between them, potentially indicating that the gene that houses that variability is involved with that condition
Requires some knowledge of the biology of the condition in order to select appropriate genes to investigate – potential disadvantage what if we don’t know much…or think we know but are not on right track
Can take confounding data, such as environmental exposures, into consideration
Selection of appropriate control group very important
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Genome Wide Association Studies
A Genome Wide Association Study (GWAS) is used when you want to investigate the entire genome to determine what polymorphisms are associated with the condition you’re studying
One advantage is the biology of the condition does not need to be well understood. You investigate the entire genome and see where the data takes you
One disadvantage is the large number of subjects required
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Genome Wide Association Studies The usefulness of GWAS has sparked a call
for GWAS data to be placed into large databanks for investigators to mine for association with a variety of characteristics (NIH data sharing plan)
Visit http://www.ncbi.nlm.nih.gov/WGA for updates on what cohorts have agreed to have their data made available
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Genome Wide Association Studies
archive and distribute the results of studies that have investigated the interaction of genotype and phenotype
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dbGaP: Framingham Heart Study
Study Participants
Entire study 14276
Cancer 3373
Diabetes 6071
MMSE 6256
Menopause data 5360
CRP 8287
Inflammatory Markers
>7000 for most
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dbGaP: Framingham Heart Study
Study Participants
Pulmonary function test
9007
SF-36 2952
Hormone data 3925
Abdominal fat study
3384
Brain MRI 2727
Cardiac CT scans
3518
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dbGaP: Framingham Heart Study
Study Participants
Dementia 2715
Digital ECG 11828
Echocardiography 4079
Bone density 4728
Plasma Renin 3352
Osteoarthritis study
1333
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dbGaP: Other studies in db
Study Participants
Collaborative study of psoriasis
2875
Multicenter ADHD project
2835
GWAS of Schizophrenia
5066
Major Depression 3741
Diabetic Nephropathy in type I diabetes
1825
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dbGaP: Other studies in db
Study Participants
WGAS of Bipolar
Disorder
2160
Whole Genome Association Study of Visceral Adiposity in the HABC Study
2802
LEAPS study* 1550
AREDS Multiple releases 4757
* Linked Efforts to Accelerate Parkinson’s Solutions collaboration
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dbGaP: Other studies in dbStudy Participants
NINDS Parkinsonism study
1283
NINDS Parkinson’s 535
NINDS repository of neurologically normal control collection
2723
Dental Caries GWAS 5291
High Density SNP Association Analysis of Melanoma
3115
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dbGaP: Other studies in db
Study Participants
FUSION study* 1283
GENEVA Diabetes Study (NHS/HPFS)
6033
Women's Health Initiative SHARe
12,008
Preterm birth 1029
Health and Retirement Study
12,507
* Finland-United States Investigation of NIDDM
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Expression Analysis Expression analysis is used when you suspect
that variable amounts or variable forms (alternative splicing/isoform) of a gene product is playing a role in the condition you’re studying remember genemRNAprotein
Gene expression can be assessed at the protein or mRNA level
Potential disadvantages usually need to extract from tissue of interest and stability of sample may be an issue
Frequently uses “microarray” technology to assess all known genes simultaneously
If using relative gene expression changes then how you’ll compare subjects/groups is important
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Epigenetic/Epigenomic Epigenetic/Epigenomic analysis is used when you
suspect that gene regulation may be implicated in a condition of interest– Candidate gene/gene region epigenetic– Multiple genes/whole genome epigenomic
involves looking at modifications that do not involve the nucleotide bases of DNA but instead look at things like chemical modifications (such as DNA methylation) or packaging of the DNA
Epigenetic/epigenomic modifications are dynamic and responsive to environment (endogenous and exogenous)
Advantage uses DNA as template and DNA is stable, so may be more amenable approach for stored samples
Disadvantage tissue specificity
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Strategies to incorporate genomics into your research
trajectories Collect samples and bank them for future use
– Broadly written informed consent to cover future investigations
Tap into existing samples/data to investigate your research questions be mindful of how samples stored and how that may impact utility for a particular approach
Collaborate – you may be interested in a phenotype that someone with samples may not have considered
Visit and Exploit online resources as much as possible The techniques to collect and analyze genetic/genomic
data advances rapidly – keep yourself informed Funding is favorable, often viewed as innovative to add
a genetic/genomic component
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NINR Strategic Plan
To advance the science of health, NINR will invest in research to:
Enhance health promotion and disease prevention Improving Quality of Life by managing symptoms
of acute and chronic illness Improve palliative and end-of-life care Enhance innovation in science and practice Develop the next generation of nurse scientists
www.ninr.nih.gov/AboutNINR
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Enhance health promotion and disease prevention
Biology and Behavior are important factors– Biology often impacts behavior and behavior often
impacts biology incorporating both into research trajectories focusing on health promotion and disease prevention makes sense
“…evaluate health risks in diverse communities by exploring the multiple factors that underlie susceptibility and mediate risk for developing disease and illness …”
“…the development of innovative interventions tailored to the individual will improve health behaviors, decrease the incidence of acute and chronic illness, and advance health outcomes while reducing health care costs…”
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Improve Quality of Life by Managing Symptoms of Acute
and Chronic Illness Not all patients will experience symptoms or
experience them to the same extent this variability may at least in part be due to genetic variability, this is also true of their caregivers
Variability in response and adherence to interventions (including behavioral) may at least in part be due to genetic variability
“NINR will invest in basic, clinical, and translational research that: Improves knowledge of biological and genomic mechanisms associated with symptoms and symptom clusters”
“NINR will invest in basic, clinical, and translational research that: Studies the multiple factors that influence the management of symptoms and applies this knowledge to the design of personalized interventions”
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Improve Palliative and End-of-Life Care
Adequate management of pain, fatigue and depression require understanding mechanisms and variability in response
End-of-Life experiences of patients with genetic conditions
End-of-Life issues confronted by family members of people with genetic conditions keeping in mind that genetic conditions are different, family members might face same disease or have been spared
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Enhance Innovation in Science and Practice
“Rapid advances in technology and genomic science, as well as significant changes in demographics and health care policies and practice, have placed pressing demands on nursing to find fresh approaches and interventions that improve health outcomes”
“The frontier of technology holds great promise for advances in health care. For example, NINR will continue to develop and refine the application of genetic and genomic science to improve risk assessment and identify potential interventions”
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Develop the Next Generation of Nurse Scientists
Summer Genetics Institute– Summer 2013 will be 14th year of training– over 240 alumni– SGI “express”
Individual Training Grants (mostly F31s) with “genetic” as a key word: n=49 separate grants funded as of April 9, 2013
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Funding for Genetics/Genomics by the NINR
As of April 2013, the NINR has funded 111 extramural research grants (R’s, K’s, P’s) that have a genetic or genomic theme to the objectives of the projects based on data obtained from NIH RePORTER
Compared to May 2010, when the NINR had funded 73 extramural grants that had a genetic or genomic theme to their objectives (38 in past 3 years)
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Funding for Genetics/Genomics by the NINR
Since 1/1/2000 the NINR has participated in 271 Request for Applications (RFA) or Parent Announcements (PA) that have genetics or genomics listed within the purpose, objectives, or potential approaches
Since 1/1/2000 the NINR has been the issuing organization for 89 Request for Applications (RFA) or Parent Announcements (PA) that have genetics or genomics listed within the purpose, objectives, or potential approaches
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Funding for Genetics/Genomics by the NINR
Exemplars of recent RFAs: 2010: RFA-NR-10-004 (R01) and RFA-NR-10-005
(R21) focused on “Epigenetic Factors Associated with Symptoms and Complications of Chronic Disorders”
2011:RFA-NR-11-003 (R01) and RFA-NR-11-004 (R21) focused on “Personalized Genomics for Symptom Management: Bridging the Gaps from Genomic Discovery to Improved Health Outcomes”
2012: RFA-NR-12-002 (R01) and RFA-NR-12-003 (R21) focused on “Application of Genomic Advances to Wound Repair”
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Funding for Genetics/Genomics by the NINR
Exemplars of recent RFAs: RFA-NR-12-010 focuses on “Early Detection and
Prevention of Mild Cognitive Impairment (R01)”…”Utilization of biomarker or genetic information to examine similarities and differences in MCI and its sequelae among those diagnosed with LLI and appropriate controls”
RFA-NR-12-006 (P30) and RFA-NR-12-009 (P20) focuses on “Centers of Excellence in Symptom Science”…”increase the quantity and quality of research projects utilizing, genetics/genomics, and biobehavioral methods”
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Funding for Genetics/Genomics by the NINR
Exemplar current RFA: due May 9, 2013 RFA-NR-13-002 (R01) and RFA-NR-13-003 (R21)
focuses on “The Influence of the Microbiome on Preterm Labor and Delivery”…”Genomic and epigenomic variants that potentially interact or associate with the microbiome in predisposing women to preterm labor and delivery”
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Useful Web Sites www.ncbi.nlm.nih.gov
– Has pull down menu that includes OMIM – Online Mendelian Inheritance in Man, databases on genomic variations (eg. SNP), dbGaP, and much more
www.isong.org– International Society of Nurses in Genetics
www.ons.org– Oncology Nursing Society – has many tools including
online modules for nurses to learn more about genetics www.cdc.gov/genomics
– National Office of Public Health Genomics– Can sign up for weekly updates via email
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Useful Current/Upcoming Literature
Most recent issue (March 2013) of Journal of Nursing Scholarship focused on genetics/genomics particularly where we are with evidence and translation to practice
2012 issue of Annual Review of Nursing Research was focused on genetics/genomics
Throughout 2011 the Journal of Nursing Scholarship had a series of articles that focused on Genetics and Genomics in Nursing with particular focus on educating nursing faculty, nursing students, and patients
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In Summary Focus has shifted from rare single gene conditions to
common, complex disorders of major public health concern and towards understanding patient experiences/outcomes
Mainstreaming of genetics/genomics Like many disciplines, translation of research is an
issue Nurses are well poised to address many of these
transitional arenas and many nurses ARE addressing these arenas
Incorporating genetics/genomics using suitable approaches is appropriate for most programs of research
The next generation of Nurse Scientists will have excellent representation of genetics/genomics
The NINR supports genetic/genomic research/training