Shared Flashcard Set

Details

8/15 Cystic Fibrosis
Rosen Theme1
35
Biology
Graduate
08/26/2011

Additional Biology Flashcards

 


 

Cards

Term
Trend in Survival of Age of CF
Definition
Is steady increasing but still many die from it fiarly early
Term

CF Gene

- Which chromsome

- Product

- Mutation name and what happens?

Definition
CF gene is found on chromosome 7 and produces CFTR, most common mutation is delta F508 where 3 nucleotides are removed; which causes a loss of phenylalanine in the 508 position
Term
CFTR function
Definition
Cystic Fibrosis Transmembrane Conductance Regulator is a chloride ion channel and modulator of other ion transport
Term
Class 1 Mutation
Definition
Defective protein production iwth premature termination of CTFR production. Class 1 mutations produce few or no functioning CFTR chloride channels.
Term
Class 2 Mutations
Definition
Defective trafficking of CFTR so that it does not reach the apical surface membrane where it is intended to function
Term
Class 3 Mutation
Definition
Defective regulation of CFTR even though it reaches apical surface
Term
Class 4 Mutation
Definition
CFTR reaches the apical surface but conduction thru channel is defective
Term
Class 5 Mutations
Definition
Associated with reduced synthesis
Term
Model of Disease Analysis (8 steps)
Definition
Gene, Protein, Cell, Tissue, Individual, Family/Community, CF population/epidem, HC system/Society
Term
Normal CFTR function
Definition
- CFTR removes Cl- from the cell into the PCL allowing water to follow and keep the cillia functioning.
- Also contributes bicarb, other ions, anti microbial.
- inhibits ENaC and balances basolateral Na/K
Term
ENaC
Definition
which pumps Na in and causes to water to flow out of the PCL into the cell, dehydrating the PCL
Term
<1% of CFTR Function
Definition
Classic CF
Term
<4.5%
Definition
Progressive pulmonary disease
Term
<5% function
Definition
Sweat abnormality
Term
<10%
Definition
Congenital absence of vas (male infertility)
Term
10-49%
Definition
No known abnormality
Term
50-100%
Definition
asymptomatic heterozygote
Term
Sinuses
Definition
- Polyps
- Mucous
- Infections
Term
Lungs
Definition
- Lung failure is leading cause of death
- Bronchiectasis where airway lumen is obstructed by mucus, edema, muscular bronchospasm - can lead to hemoptysis and pneumothorax/lung collpase
- Affected by poor nutritional absorption of vitamins, grow age 9-10
- Cor pulmonale; end stage resp disease
Term
Skin issues
Definition
Sweat
Term
Pancreas (5 things)
Definition
- Failure to deliver enzymes; poor metabolism - Malabs of fat and fat soluble vitamins KADE; poor grwoth/osteoporosis/bleeding - Steatorhea - Bloating, gas, pain in abdomen - Pancreatitis - Diabetes from damage to pancreas
Term
Liver/GB
Definition
Cirrohsis, 3rd leading cause of death
Term
Intestine
Definition
- Meconium; dehydrated stool in babies recurs for adults
Term
Kidney
Definition
- Failure due to the treatments
Term
Clubbing
Definition
Rounded fingers
Term
Diagnose CF
Definition
- Prenatal screening (NYS newborn screening program with IRT screen)
- Meconium ileus
- Poor nutrition, growth and fatty poop (steatorrhea)
- Asthma- hard to control
- Frequent pneumonias
- Male infertility
Term
Complications of CF
Definition
GERD, Cirrhosis, Gall stones, Rectal prolapse, Distal intestinal obstruction syndrome
Term
Bethesda Foundation
Definition
Non-profit focused on research funding
Term
CF population in the US
Definition
30,000
Term
CF Care team
Definition
Team; Dr, Nurse, Tech, Social worker, Pharmacist
Term
FEV1
Definition
Force exited/volume in 1 second; higher FEV means better life outcome/physical output
- Better care has resulted in better FEV than in the past but still a progressive disease
Term
P. Arraganosa
Definition
Baceteria in lungs causes most infections
Term
B. Supacia Complex
Definition
- Very rare agressive bacteria, soil
Term
Common complications
Definition
- Diabetes and Bone disease (vit D)
- Depression (same as other chronic diseases)
Term
Preganancy and CF
Definition
- higher risk of stillbirth and pre-me
- 1/40 chance of successful birth
- Treatment of mother may damage fetus
Supporting users have an ad free experience!