deck_4699104 Flashcards
(34 cards)
What is the central dogma of gene to protein pathway? (4)
DNA replication occurs Gets transcripted into RNARNA gets translatedProtein gets made
What is epigenetics?
the study of cellular and physiological phenotypic trait variations that are caused by external or environmental factors that switch genes on and off and affect how cells read genes instead of being caused by changes in the DNA sequence.
How does how does epigenetics differ from typical genetics?What are three examples of things looked at in epigenetics?
Looking at everything that happens to DNA-Reversible DNA methylation-Reversible RNA methylation-Reversible Histone Methylation or acetylation
What is a genetics view vs. a genomic view?(with regards to schizophrenia)
Genetics looks at what single genes cause schizophreniaEpigenetics looks at how environment causes multiple genetic perturbations and causes schizophrenia
What is the ENCOD project hoping to accomplish?
To identify all functional elements in the human genome.
What is the nucleotide difference between humans and apes?
~ 1% nucleotide difference
What is the nucleotide difference between humans?
.1 %
What makes humans all so different if we are all so similar?
Differences in the functional elements of the genome
Genome
All the genetic material of an organism
Genetics
Study of single genes and its effects
Genomics
Study of all the genes in the genome, including their interactions with environmental factors
Pharmacogenetics
The study of influences on an individual’s response to drugs.
Pharmacogenomics
The study of all genes collectively that influence drug responses and how genome-wide analysis may be used to identify such genes in the search of novel drug targets and or key determinants of drug reaction
What will pharmacogenomics trying to achieve?
How to predict which patients will benefit from a particular medicine and which patients will suffer serious side effects.
3 billion base pairs in____________3 million base pairs ________100,000 base pairs _________
3 billion base pairs in human genome3 million base pairs variable100,000 capture full human variation
What are some problems that pharmacogenomics could fix?
• Many drugs for some illnesses• Not enough information about the patient • Drugs are specified by trial and error • Most drugs have side effects • Some drugs have serious side effects • For a drug to get approved by FDA drug trials are done • Pharma companies need to show a specific population for drug action • Many potential drugs are abandoned because the population it will benefit is not characterized convincingly
What does it cost to make a new drug?
$500-700 million dollars
How long does it take to launch a drug product ?
12 years
How long do patents last?
7 years
How is therapeutic index impacted by pharmacogenomics?
Its increased!
What is efficacy of a drug?
% patients cured at given dose
What is toxicity of a drug?
% of patients exhibiting side effects at a given dose
What is therapeutic index?
Dose range at which drug shows highest efficacy and low toxicity
Out of the top 10 causes of death in America how many have a genetic component?
9 out of 10.