P- Pencil-in-cup deformity
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Pencil-in-cup deformity |
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Pencil-in-cup deformity |
Hello everyone !
This is a short post about Liposomal delivery systems. Hope this introduces you to the concept nicely.
∆ What are Liposomes ?
- They are vesicles made of Cell membrane phospholipids. In pharmacology, they can be used as Drug delivery systems.
∆ What advantage does a Liposomal preparation offer in comparison to a regular preparation?
- The Liposomal preparation consists of the desired drug loaded into the Liposomal vesicle. This vesicle is resistant to degradation in the gut and can be customized to open up in selective tissues.
- Thus , it increases Bioavailability of the drug and hence , the action of the drug is more predictable and sustained !
∆ Is this even used at all? Or is it just an extra thing we learn which is never used ?
(- I'm so glad you asked. )
Here's a list of drugs that have commercially available Liposomal preparations :
Remember : ABCD GIV
Amphotericin B
Bupivacaine
Vitamin C
Doxorubicin And Daunorubicin
Glutathione
Irinotecan
Vincristine
- Liposomal preparations have totally revolutionised the usage of Amphotericin B! Which is the drug of choice for a host of fungal infections and even Leishmaniasis.
- With the anti cancer drugs like Doxorubicin , innovative methods such as targeting the drug to a specific organ have been formulated so that the cytotoxicity is limited to the organ in question only ! Thus optimizing the absorption as well as the action !
What a marvellous delivery system , isn't it ?
I hope this post helped you!
Stay awesome.
Hello everyone ! I'm back with another post on Opthalmology ! Hope you like it.
∆ Uses of Steroids in Ophthalmology -
1. Prophylactic - PC
- Post op Cataract - 6w
- Corneal grafting.
2. Therapeutic - Go from anterior to posterior. We use it in every layer of the eye !
- Lids - Intralesional for Chalazion
- Conjunctiva - Phlyctenular Conjunctivitis.
- Sclera and Episcleral tissue - Scleritis and Episcleritis.
- Cornea - Contra indicated - As it affects healing and may cause super infections.
- Uvea - Anterior and Posterior Uveitis. Purulent Uveitis - Endophthalmitis ; Panopthalmitis.
- Retina - Diabetic Retinopathy Intravitreal Triamcinolone.
- Nerve - Optic Neuritis ( Multiple Sclerosis ) - Methyl Prednisolone
3. Others :
- Secondary Glaucoma due to the Inflammatory etiology.
~~~~~~~~~
∆ Precautions :
- Avoid in any ulcer cases as it can delay healing of the ulcer or aggravate fungal or herpetic ones.
- Can cause Cataract - Posterior Subcapsular. (Generally when given systemically)
- Can cause Glaucoma ( Generally when used Topically. )
Hope you liked it !
Stay awesome !
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Fall on outstretched hand resulting in displacements seen in Colles' fracture |
Hello awesomites, I am kind of obsessed with fancy syndromes. So here is one of them.
Churg Strauss Syndrome (CSS) also known as Eosinophilic granulomatosis with polyangitis or allergic granulomatosis.
It is a rare autoimmune condition, that causes inflammation of small and medium sized blood vessels.
Manifests in 3 stages-
Early stage (Prodromal stage) : Present as
Asthma or
Allergic Rhinitis
Sometimes with nasal polyps and sinusitis
(Remember 'A' is the first letter, so it should always come first)
Second stage : Abnormally increased eosinophils= Hypereosinophilia
Which causes tissue damage mostly lung and digestive tract.
Manifestations are Night sweats, weight loss, cough, abdominal pain, GI bleeding, fever, purpura
Third stage: vasculitis- which leads to infarction which further leads to atrophy
Further progression leads to complications.
But not all patients develops all three stages, or progress in the same order.
Pathophysiology - Its a Autoimmune disorder where different cell types are responsible for immune response especially Eosinophils, T&B cells, endothelial and epithelial cells. Mainly it is Th2 mediated reaction.
Complications can be life threatening -
(Most Grievous)
M- Myocardial involvement is the most common complication and most common cause of death in CSS patients
G- GI bleeding, GI perforation, Glomerulonephritis, Glomerulosclerosis,
Granulomatous appendicitis
Treatment - Conventional treatment includes glucocorticoids like Prednisolone and immuno suppressive drugs like Azathioprine, cyclophosphamide.
Newer drugs direct against specific cytokines like mepolizumab have additional steroid sparing property angood tolerability. Use of Rituximab is under investigation and limited to few cases.
That's all. :)
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Bado type I lesion (most common) |
Hi everyone.
I'm back with a short post. This one is about Glycogen storage diseases which, again, we all hate to remember :'D Hope you like it.
So Remember :
Very Pompously CAMe Her Tears.
1. Very = Von Gierke's
2. Pompously = Pompe's
3. C = Cori's / Forbe's
4. A = Anderson
5. M = McArdle's
6. Her = Her's (we'll at least Remember this one :'D)
7. Tears = Tarui's
So that's that.
Now how do we remember which is Muscular and which is hepatic ?
Simple.
Remember :
The Muscular get kissed under the Mistle Toe.
So the ones involving the Muscles are :
Mistle = McArdle
Toe = Tarui's.
Also remember :
Pompeii the city was a wh*re. So it went everywhere and hence Pompe's is both Muscular and Hepatic.
That's all for now. It may seem like a lot of crap to simply memorize these Glycogenosis but you'll realise they form an excellent aid for memory :D and are super important whether you want to do USMLE or Indian PG.
So c'mon ! Burn those Glycogens in your liver and get some Glucose into your head ;)
Stay awesome.
Happy studying.