MS done Flashcards
(309 cards)
A person can have MS for…
Long long time.
Age that MS starts?
Early forties
Ninety percent make use of this DME?
Power chair
Multiple Sclerosis =
multiple areas of scarring(sclerotic tissue) or plaques
As the name does say, that there are multiple areas that are sclerotic
MS is an _________ disease that has an _______ effect.
Autoimmune,
Inflammatory.
Does MS affect the periphery or also the CNS.
Also the CNS
There is also the Walking Pill, the Walking Drug, Ampera, or 4AP, it clogs up the holes that were
made.
.
Spasms are muscular
Seizures
Can you train them to send more action potentials?
Yes
Etiology
• Interaction between several factors:
• genetic predisposition, we did say that MS is an AI disease.
• an inciting environmental antigen, the enviornment can trigger this person who is predisposed
susceptibility of the host, ??? Isn’t this just genetics?
Difference between exacerbation and pseudoexacernbation
The real deal is for 48. Hours or more, the psuedo is for less than 48 hours.
What can trigger their exacebation?
Heat.
Risk of developing MS is greater if you have a
siblingwith MS, greater risk for ♀ sibling vs. ♂ sibling
- 3% for sibling
- 5% for fraternal co-twin
- 25% for identical co-twin
.
Implicated Viruses, yet to be proven
Epstein-Barr, Very strong correlation • Measles Canine Distemper A virus • Human Herpesvirus-6 • Chlamydia pneumoniae
The MECCH is this.
Measles Epstein barr Chlamydia pneumoniae Canine distemper A virus Human herpes virus 6
Favorable prognostic indicators:
Female, onset before age 35, monoregional vs polyregional attacks, and complete recovery afterattacks
So females are shielded againstt he brunt of this problem, as is their symbol.
If they are young, so they have the ability to recover
If they do recover sfter attacks it shows that they area type of person that can recover well.
Adm finaly if the attack was at one area and not at mulitple areas, this can show that this person has a strong reislience to this disease.
You g strong shielded female, that has it at one area, and did recoverf rom previous attacks.
This shows that they would most likely do well.
Unfavorable prognostic indicators:
• Male, brainstem symptoms (ataxia, nystagmus, tremor, dysarthria), poor recovery after exacerba-tions , &high frequency of attacks
So the men are apnot shielded,
If their attacks is on the brainstem, a major area, if they have had attacks and they did not recover well,and they are getting attacked over and over again.
Somwhy are they not recoveri well or getting attacked over and over again? They are very suceptinpble. They would most likely get attacked again.
And men do not have that shield that women have.
So these are not causes, but signs that these types of people are more likely to have a poor prognosis.
Vitamin D defieciency is bpvery prevalent forMS.
.
• Inc. prevalence in areas farther away from the equator (>400 latitude)
So who is more inclined towards being affected by the heat, someone who has not ebeen acclimated to the heat.
Those are the people who are in the cold areas, so they are not used to the heat, and when it does get hot they csn become exacerbated.
But really we are speaking about those who seem to have a predisposition.
But anything that will alpw me to remenpber this.
So colder climates they are more likely to have ms?
Or those who are more likely to get MS live in the cold climates?
Nope, its really a cause, interetingly enough.
Suvival Rate
From 1980-1989:
!
Survival rate from 15 to 40 yrs
Currently
Almost a normal lifespan
Secondary to Better Managment of Symptoms
The answer for fatigue is not
rest, but it isworking out.
The BBB is disrupted and triggers:
• Astrogliosis
• Production of a brain antigen called glial fibrillary
acid protein (GFAP)
• GFAP causes further disruption of BBB
• Mobilizes “activated” lymphocytes & macrophages to the scene.
• Macrophages initiate destruction of myelin sheaths & cell bodies of oligodendrocytes.
• Fibrous astrocytes fill the demyelinated areas & form the glial scar or plaque.
• Cytotoxic lymphocytes and macrophages are present in the plaques, leading to edema that can have a masseffect, simulating a tumor
The successful treatment of MS exacerbations with ster-oids is in part based on the drugs’ ability
to control theedema resulting from the inflammatory response
REMYELINATION AFTER EXACERBATION:
The survival of oligodendrocytes is the factor behind re-
myelination in early attacks
In later stages of the disease, no oligodendrocytes are
preserved, and remyelination occurs only at the bordersof the plaques, if at all.
If we can promote oglidendrocyte survival, even though the myelin will get destroyed they can get rebuild.
The issue with MS is not that the myelin gets destroyed, that nothing new, but the issue is that new ones do not get rebuilt.