L11-MSK Flashcards
RA v OA.
List the 2 NHPs to reduce the Sx of RA.
- omega-3 fatty acid
2. gamma linolenic acid
RA v OA.
List the 5 NHPs to reduce the Sx of OA.
- glucosamine
- chondroitin
- turmeric
- MSM
- SAMe
RA v OA.
State the difference in:
1. Cause
RA: AI disease
OA: wear-n-tear
RA v OA.
State the difference in:
2. MOA
RA: IS attacks joint/tissues then over time cartilage/bone is damaged & muscles/ligaments/tendons are weakened
OA: age/overuse of joint causes the top layer of cartilage to break down/wear away. bones rub together.
RA v OA.
State the difference in:
3. Affected joints
RA: Fingers, wrists, usually symmetrical
OA: Hands, knees, hips, spine-not usually symmetrical
RA v OA.
State the difference in:
4. Sx.
RA: pain & inflammation
OA: pain, inflammation in severe cases
RA NHPs.
Which 3 are listed as effective?
- Borage (gamma-linolenic acid)
- Cat’s claw
- Fish oil
RA NHPs.
Which 6 are listed as INeffective?
Bromelain Collagen Type II Evening Primrose oil (gamma linolenic acid) Krill oil New Zealand Green Lipped Mussel Turmeric
RA NHPs.
Which 6 are indicated for RA & OA?
Does this make sense?
Cat's claw Krill oil Turmeric NZ Green Lipped Mussel Collage Type II Bromelain -> nt really as RA is heavily inflammatory, but OA is not
RA NHPs.
T/F: Thunder god vine should not be used due to serious SE.
True!
RA NHPs - 1. Fish Oil.
Main source?
List other sources?
=Omega 3 (PUFAs, EPA, DHA) other sources: •Krill oil •Algae (blue-green) •New Zealand green lipped-mussel
RA NHPs - 1. Fish Oil.
MOA.
- Arachadonic acid through COX enzymes make a series of PGs that can cause inflammation
- Omega 3’s make sense bc the same enzymes that make the inflam PGs can use EPA and make anti-inflam PGs instead
- omega 3’s can also make resolvins in addition to the anti-inflam PGs
- > these also help to resolve inflammation
RA NHPs - 1. Fish Oil.
Define resolvin.
How can fish oils help?
=resolution phase interaction product
-some ppl may have a hard time to naturally producing these resolvins fish oils can help.
RA NHPs - 1. Fish Oil.
RCT: Fish oil as add on Tx in recent OA of RA.
Methodology.
- RA <12m
- DMARD naive
- Both groups received triple DMARD tx (MTX, sulfasalazine, and hydroxychloroquine)
-Treatment group received 5.5g/day of EPA+DHA
control received 400mg EPA+DHA
(so that they could at least smell and thought they may be getting it)
RA NHPs - 2. GLA.
Main source?
List other sources?
GLA= Gamma linolenic acid =omega 6 fa -borage oil -black currant -evening primrose oil
RA NHPs - 2. GLA.
T/F: Addition of GLA supplementation is needed as we often do not get enough in our diet.
FALSE
-ppl tend to get more omega 6 in diet (to the point of too much)
RA NHPs - 2. GLA.
MOA - i.e.: Why would we want to take this? Wouldnt it just cause more regular PGs?
-possible reasoning:
>some enzymes along the way can get saturated, then the remainder can get sent off to the side and make different PGs that do have anti-inflam effect
RA NHPs - 2. GLA. Which one is the possibly effective? 1. Primrose 2. Borage 3. Black current
3! Only one that is possibly effective, has the highest concentration, still conflicting.
RA NHPs - 2. GLA.
Cochrane evidence of GLA itself?
Why did Cochrane NOT do a study on fish oil?
- probably may improve pain; may improve function.
- b/c just looking at herbs, fish oil not a herb
RA NHPs.
Evidence of NHPs usage in RA.
- no complementary medicines, oral or topcal have demonstrated efficacy
- few have been sufficiently tested using RCTs
fish body oil given an effectiveness rating of 5 (safety green, w only possibility of anti-coag effects)
(borage oil, evening prim are 3); (cat’s claw and rose hip 2); (black current, flaxseed, green-lipped mussle 1)
*cat’s claw and flaxseed oil are ambers for safety
RA NHPs.
T/F: No complementary medicines, oral or topical, have demonstrated efficacy.
TRUE!
BUT few have been sufficiently tested using RCTs
RA NHPs.
Evidence of NHPs usage in RA.
____ is the only NHP has been given a 5 effectiveness rating & a green safety rating.
Fish body oil
RA NHPs.
List the effectiveness rating given a green in safety rating (5).
Fish body oil - 5 Borage oil - 3 Rose hop - 2 Black currant seed oil - 1 Green-lipped mussel - 1
RA NHPs.
List the effectiveness rating given an amber in safety rating (2).
Cat’s claw - 2
Flaxseed oil - 1
OA NHPs.
List the 5 NHPs to reduce the Sx of OA.
- glucosamine
- chondroitin
- collagen
- Hyaluronic acid
- turmeric
- MSM
- SAMe
OA NHPs - 1. Glucosamine.
What is it?
WHAT THREE FORMS IS IT AVAILABLE AS?
=2-amino-2-deoxy-D-glucose -available as: >glucosamine SO4 >glucosamine HCl >N-acetyl glucosamine
OA NHPs - 1. Glucosamine.
Which available form is thought to be effective?
Sulfate thought to be the “effective” one
-most studied on knee
OA NHPs - 1. Glucosamine.
MOA.
- Precursor to glycosaminoglycans & proteoglycans that make up articular cartilage
- Theory: as you get older & you are getting OA, it may be from decreasing glucosamine over time
OA NHPs - 1. Glucosamine.
MOA - what is the problem w this theory?
-while this is good in theory there are lots of problems with this-> BA only 20% so likely not getting it where it needs to go
OA NHPs - 1. Glucosamine.
Evidence of glucosamine in OA of the knee.
-inconsistent, insuff evidence, many medical sources do not support it.
OA NHPs - 1. Glucosamine.
RCT: Effect of oral glucosamine on joint structure.
- 201 participants
- Tx group: glucosamine HCl for 24wks, others had placebo
-Primary outcome: decrease worsening of cartilage damage
-Secondary outcomes: change in bone marrow lesions (BML),
decrease in self reported pain
>used MRI to evaluate cartilage damage
OA NHPs - 1. Glucosamine.
RCT: Effect of oral glucosamine on joint structure.
Results.
- No evidence of structural benefits
2. No reduction in pain
OA NHPs - 1. Glucosamine.
AE.
GI discomfort.
OA NHPs - 1. Glucosamine.
-shellfish allergy (?)
>for NHP, made in lab but same compound in shells
>though the allergy is from meat BUT not worth the risk
-diabetes (??)
>has sugar, may affect insulin sensitivity, not proven
-Preg
-Asthma (several case reports)
OA NHPs - 1. Glucosamine.
T/F: CI in patients w renal/hepatic impairment.
FALSE!
-not studied in pts w renal or hepatic impairment
OA NHPs - 1. Glucosamine.
DI.
-warfarin
>theoretical, only 20 case reports of glucosamine increasing INR
OA NHPs - 2. Chondroitin.
Describe.
- a polymer isolated from an animal sources
- it is a glycosaminoglycan
- poor oral BA
OA NHPs - 2. Chondroitin.
Reason of use.
-may prevent cartilage metabolism
OA NHPs - 2. Chondroitin.
T/F: Similar to heparin in structure.
TRUE!
-similar to heparin so may have anticoag effects (therefore theoretical interaction)
OA NHPs - 2. Chondroitin v GA. RCT: GAIT Glucosamine/chondroitin arthritis intervention trial. Peeps? Outcome measures?
- 5 diff possibilities: >Glucosamine or chondroitin on own OR as combo, celecoxib, or placebo
- outcome measures: decreased pain, improved function
OA NHPs - 2. Chondroitin
RCT: GAIT
Glucosamine/chondroitin arthritis intervention trial.
Results.
-compared to placebo:
celecoxib group 10%
glucosamine group 4%
glucosamine plus chondroitin group 6.5%
-not a gucci study, positive control was NOT good, rate of response was better for mod-sev pain group
OA NHPs - 2. Chondroitin
RCT: LEGS
LT Evaluation of GA Sulfate Trial.
-Studied chronic knee pain for 2yrs
-either glucosamine sulfate, chondroitin sulfate, combo of bth or placebo
-outcome measures:
>disease progression (measured by radiograph), knee pain score
OA NHPs - 3. Collagen
T/F: Applies to both RA & OA.
False!
- APPLIES TO RA NOT OA
- Theory: inducing oral tolerance to reduce activity of T cells that release joint destroying factors
- insuff evidence (both OA and RA)
- similar to gelatin preps
OA NHPs - 3. Collagen
Define oral tolerance induction.
- described a state of immune hyporesponsiveness following the oral ingestion of a protein
- method by which a periph immune tolerance to a particular Ag may be induced by presenting specific amounts of that antigen to the GI system
OA NHPs - 4. Hyaluronic acid (as an oral NHP).
- insuff evidence BUT is when given by intra-articular injections (not an NHP)
- no studies for its action; likely not getting to where it needs to go as oral
OA NHPs - 5. Tumeric
WHAT IS IT?
=curucma longa
-used in herbal medicine to help relieve joint inflammation; possibly effective
OA NHPs - 5. Tumeric
MOA.
-may reduce inflammation by inhibiting COX-2 PGs, LTs, and other cytokines involved in proinflammatory signaling pathways
OA NHPs - 5. Tumeric
CI.
- diabetes?
- curcumin can reduce levels of blood glucose and glycosylated (HbA1C) hemoglobin
OA NHPs - 6. Celedrin/cetylated FAs.
=celedrin
- possibly effective
- may inhibit COX and 5-lipoyxygenase
- may be a joint lubricant
- it is hugely fat soluble; have been made into esters for better absorption
OA NHPs - 7. MSM
WHAT ERZ IT?
- pssibly effective
- is a simple, naturally occuring compound
OA NHPs - 7. MSM
MOA.
- inhibit degenerative changes in joints
- scavenge hydroxyl free radicals which trigger inflam
OA NHPs - 8. SAMe
What dis it?
-NHPD allows: helps alleviate OA pain
OA NHPs - 8. SAMe
DI
- antidepressants, MAOIs, bipolar disorder, manic depression
- hepatotoxic drugs
3.Hyperhomocysteinemia
>do not take at night since may cause anxiety, restlessness and insomnia
OA NHPs - 9. Eggshell membrane
- promoted for “relieving joint pain in as little as 7-10d
- natural source of collagent, glucosamine, chondroitin, and hyaluronic acid
- msot studies had limited amount of evidence; you want the evidence to be clinically relevent
practical tips for pharmacists
- Med reviews should capture all NHPs being used
- Always review for potential medication/NHP interactions
- Recommend trying only one new NHP at a time to better assess benefit/ unexpected reactions
- Review potential side effects with patient
- Patients w renal or liver impairment, DM or HTN or are preg/BF should consult prior to initiating NHPs
- A new NHP should be tried for 2 months before assessing benefit. After 2m, stopping for 7 days may help assess any benefit provided
- Changing brands may affect benefit
- Caution pts that no NHP is a “miracle cure” for OA; pain reduction goal