9/1 cleanup Flashcards
Hyperchylomicronemia
- LPL deficiency or CII deficiency
- Increased cylomicrons, TG, cholesterol
- Pancreatitis, hepatosplenomegaly, pruritic xanthomas
Familial hypercholesterolemia
- Absent or defective LDL receptors
- High cholesterol, accelerated atherosclerosis, tendon xanthomas, corneal arcus
Dysbetalipoproteinemia
- Defective apo e
- Absent chylomicrons and VLDL
- Premature atherosclerosis, tuberoeruptice xanthomas, canthoma striatum palmare
Hypertryglyceridemia
- Hypertriglyceridemia can cause acute pancreatitis
- Hepatic overproduction of VLDL
Methionine synthase requires what vitamin? Wha about cystathionine?
- Methionine:B12
- Cystathionine: B6
Posterior wall of the ventricle is supplied by
PDA
Posterior wall of left ventricle is caused by
Left circumflex
Ventricular free wall rupture occurs when?
5-14 days after MI
What are the main side effects of niacin
Flushing, hyperglycemia and hyperuricemia
cAMP horomones
FLAT ChAMP
- F = FSH
- L = LH
- A = ACTH
- T = TSH
- C = CRH
- h = beta HCG
- A = ADH
- M = MSH
- P = PTH
cGMP hormones
BNP, ANP, EDRF
IP3 hormones
GOAT HAG
- G = GnRH
- O = Oxytocin
- A = ADH (V1)
- T = TRH
- H = Histamine
- A = Angiotensin II
- G = Gastrin
Intracellular receptor
Progestrone, estrogen, testosterone, cortisol, aldosterone, T3 and T4, Vitamin D
RTK hormones
Insulin, IGF1, FGF, PDGF, EGF
Nonreceptor Tyrosine Kinase
PIGGlET
- Prolactin
- Immunomodulators
- GH
- G-CSF
- Erythropoietin
- Thrombopoietin
The ampulla of vater is derived from what part of the pancreas?
Ventral bud
What things are secreted from the body of the stomach
- Parietal cells: HCl, Intrinsic factor
- Chief cells: Pepsinogen
Hormones released from the antrum
- D cells: Somatostatin
- Mucous cells: Mucus
- G cells: Gastrin to circulation
Vagus nerve stimulates what cells
- Parietal cells
- G cells
- D cells
What hormones are released in the duodenum?
- I cell: CCK
- S: Secretin
- K: GIP
What is the pathogenesis of calculous cholecystitis?
Most common type and is caused by gallstone impaction in cystic duct resulting in inflammation; can cause secondary infection
What is acalculous cholecystitis?
Due to gallbladder stasis, hypoperfusion or infection(CMV); seen in critically ill patients
What are the H2 blockers
Cimetidine, ranitidine, famotidine, nizatidine
Proton pump inhibitors
Omeprazole, lansoprazole, esomeprazole, pantoprazole, dexlansoprazole
What is fibromyalgia
Chronic widespread musculoskeletal pain aassociated with tender points, stiffness, parethesias, poor sleep, fatigue, cognitive disturbance
What is some illness anxiety disorder?
Excessive preoccupation with acquiring or having an illness, despite reassurance and eval
Treatments for narcolepsy
Daytime stimulants, nighttime sodium oxybate
Potency of estrogen types in order
Estradiol>estrone>estriol
What are the types of androgens and where are they produced?
DHT and testosterone (Both in the testes), Androstenedione (ADrenal)
Number 1 risk factor for cervical invasive carcinoma
Multiple sexual partners……. hten smoking, early intercourse, HIV infection
Fibrocystic changes of the breast?
Premenopausal women over 35 which presents with premenstrual breast pain or lumps; often bilateral and multifocal. Nonproliferative lesions include papillary apocrine change/metaplasia, stromal fibrosis.
Sclerosin adenosis
Acini and stromal fibrosis, associated with calcifications
Epithelial hyperplasia
Cells in terminal ductal or lobular epithelium causing increased risk of carcinoma with atypical cells
What is the pathophysiology of inflammatory breast cancer
Dermal lymphatic invasion by breast carcinoma leading to peau d’orange; neoplastic cells block lymphoatic drainage
Methemoglobin treatment
Methemoglobinemia can be treated with methylene blue and vitamin C
Carboxygemoglobin
Hb bound with CO leading to decreased oxygen binding capacity with left shift
Adenocarcinoma mutations
KRAS, EGFR, ALK
Define lead time bias
Early detection is confused with increased survival
What do alcohols do for disenfection?
Denature proteins and disrupt cell membranes
What things are sporicidal
Hydrogen peroxide, iodine and iodophores, autoclave
What robertsonian translocation occurs that causes down syndrome
Between 14 and 21
Osteogenesis imperfecta featuers
- Multiple fractures with minimal trauma; may occur during the birth process
- Blue sclera due to translucent connective tissue over choroidal veins
- Some forms have tooth abnormalities including opalescent teeth that wear easily due to lack of dentin
- Hearing loss
Ehlers Danlos features
- Hyperextensible skin, tendency to bleed and hypermobile joints
- Classical type: caused by a mutation in type V collagen
- Vascular type: Type 3 collagen deficiency
- Hypermobility type: Most common
RET gene disorders
Men2a and Men2b
Pringle maneuver
Ligament may be compressed between thumb and index finger placed in omental foramen to control bleeding
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What is the cause of physiologic neonatal jaundice
UDP-glucuronosyltransferase
Busulfan
- Cross link DNA
- CML also used to ablate patients bone marrow before bone marrow transplantation
- Severe myelosuppression, pulmonary fibrosis, hyperpigmentation
Person has noise induced hearing loss, what sounds should come back first
High frequency
What are the issues afoot with klinefelter syndrome
- Dysgenesis of seminiferous tubules leading to decreased inhibin B and increased FSH
- Abnormal leydig cell function leads to decreased testosterone and increased LH and increased estrogen
What are the risks of blood transfusion
- Possible infection transmission
- Transfusion reactions
- Secondary hemochromatosis
- Hypocalcemia (citrate chelates Ca2+)
- Hyperkalemia
What is produced by eosinophils?
- Histaminase
- MBP
- Eosinophil peroxidase
- Eosinophil cationic protein
- Eosinophil derived neurotoxin
Specific granueles of neutrophils
- Leukocyte alkaline phosphatase
- collagenase
- lysozyme
- lactoferrin
Azurophillic granules
- Proteinases
- Acid phosphatase
- myeloperoxidase
- beta-glucuronidase
What is the major cause of neuronal death in huntington disease
NMDA=R binding and glutamate excitotoxicity
Difference between metachromatic leukodystrophy and adrenoleukodystrophy
- Metachromatic leukodystrophy - AR lysosomal storage disease where formed myelin is destroyed by buildup of sulfatides
- Adrenoleukodystrophy - VLCFA leading to build up in nervous system, adrenal gland, testes, leading to progressive disease leading to long term coma/death
Mirabegron
Beta3 agonist for urinary urge incontinence and overactive bladder
D1 vs D2 receptors
- D1 = relaxes renal vascular smooth muscle, activates direct striatum
- D2 = Modulates transmitter release in the brain, inhibits direct striatum
General side effects of vancomycin
NOT trouble free
- Nephrotoxicity
- Ototoxicity
- Thrombophlebitis
Which is the only NRTI that is a nucleotide rather than a nucleoside
Tenofovir
NRTIs
Abacavir, Didanosine, emtricitabine, lamivudine, stavudine, tenofovir, zodovudine
Integrase inhibitors have what toxicity
Creatinine kinase increase
Chloroquine adverse effects
Retinopathy, pruritis
Drugs used for mite therapy
Permethrin, malathion, lindane
Mech of sofosbuvir
- HCV RNA dependent RNA polymerase acting as a chain terminator
- Can cause fatigue, headache, nausea
Mech of ribavirin
- HepC Inhibit synthesis of guanine nucleotides
- Hemolyric anemia, teratogenic
Simeprevir mech
- HVC protease inhibitor preventing replication
- Photosensitivity, rash
HLAb5701
Abacavir
Use of amoxicillin, ampicillin, aminopenicillins
HHELPSS
- H flu
- H pylori
- E coli
- Listeria
- Proteus
- Salmonella
- Shigella
Daptinomycin mech and AE
- Disrupts cell membrane of gram + cocci with transmembrane channels
- Causes myopathy and rhabdomyolysis
Prophylaxis for endocarditis for surgical or dental procedures
Amoxicillin
Prophylaxis for gonorrhea
Ceftriaxone
Pregnant woman carrying group B strep prophylaxis
Penicillin g or amp
Isoniazid adverse effects
- Hepatotoxicity
- Druge induced SLE
- Anion gap acidosis
- Vitamin B6 deficiency
- ALWAYS ADMINISTER WITH B6
Amphotericin adverse effects
Hypotension, nephrotoxicity, arrythmias, anemia, IV phlebitis ALWAYS HYDRATE WITH AMPHO
Second generation cephalosporins
Fake Fox Fur, cefaclor, cefoxitin, cefuroxime
First line for absense seizures
- Ethosuximide, but lamotrigine can work
First line for status epilepticus
- Acute: Benzos
- Prophylaxis: Phenytoin, fosphenytoin
Tonic clonic seizures first line
- Phenytoin, fosphoymcin or Valproic acid
Partial seizure first line
Carbamazepine
Topirimate side effects
Sedation, mental dulling, kidney stones, weight loss, glaucoma
Vigabatrin mechanism and AE
Gaba increase by inihibiting transaminase, leading to permanent visual loss
Order type 1 antiarrythmics in terms of Na+ channel affinity
1C, 1A, 1B
Dihydropryidines treat what
Hypertension, angina (including prinzmetal) raynaud phenomenon
NImodipine is for….
Subarachnoid hemorrhage
Nicardipine, clevidipine:
Hypertensive urgency and emerghency
Non-Dhps treat
Hypertension, angina, atrial fibrilation
PCSK9 inhibitors use
Decreased LDL by inactivation of LDL receptor degradation
Can cause myalgias, delirium, dementia
Acute treatment of serotonin syndrome
Cyproheptadine
Within 2 weeks of MI, what are the major complications occur?
- Free wall rupture, tamponade
- Papillary muscle rupture leading to mitral regurg
- LV pseudoaneurysm
Cilostazol and dipyridamole
- PDE inhibitors in platelets leading to inhibition of aggregation and vasodilation
- Causes nausea, headache, facial flushing, hypotension, abdominal pain
Ticlopidine AE
Neutropenia
What are some indications of familial forms of alzheimer disease
Presenilin1 and 2, APP
Clozapine mechanism
Agranulocytosis, seizures
Risperidone mechanism
Hyperprolactinemia
Terbutaline and ritodrine
Beta 2 agonists to relax th uterus and used for contraction decrease frequency for women in labor
Icosahedral virus parts
Surface protein, lipid bilayer, capsid, nucleic acid
Enveloped helical capsid components
Lipid bilayer, surface protein, helical nucleocapsid with inegrated RNA
Teriperatide
- Recombinant PTH to increase osteoblast activity
- Increased risk of osteosarcoma and transient hypercalcemia
Smoked foods lead to what cancer
Gastric cancer
Cincalcet
Causes increased sensitivity of the calcium sensing receptor of the parathyroid gland to help in hyperparathyroidism
TTP pathogenesis
ADAMTS13 inhibition leading to vWF multimers and resultant shistocytes
Dactinomycin mechanism
Intercalates into DNA to deal with wilms tumor, ewings sarcoma, rhabdomyosarcoma childhood tumors
Bleomycin
- Free radical formation
- Testicular cancer and hodgkin lymphoma
- Fibrosis, hyperpigmentation, minimal myelosuppression
Erysipelas
Infection of the upper dermis and superficial lymphatics, usually from Strep pyogenes
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Pyruvate carboxylase activators
Biotin, ATP, acetyl-CoA
PEP carboxykinase activator
GTP
Fructose 1,6 bisphosphatase activators and inhibitors
- Citrate
- AMP, F26BP
Regulators of hexo/glukokinase
- Inhibited by glucose 6 p: Hexokinase
- Inhibited by Fructose 6 p: Glucokinase
Glycogenesis activation
- G6Phosphate
- Insulin
- Cortisol
Glycogenesis inhibition
Epinephirine and glucagon
Glycogenolysis activation
Epi, glucagon, AMP
Glycogenolysis inhibiition
G6P, insulin, ATP
FA synthesis activators and inihibitors
- Activation: Insulin, citrate
- Inhibition: Glucagon, palmytoil CoA
ATP and GTP play what role in protein synthesis
ATP activates but GTP translocates
Areas that have both Aldose reductase and sorbitol dehydrogenase
Liver ovaries and seminal vesicles
Cimetidine adverse effects
Inhibit P450, antiandrogenic effects (prolactin release, gynecomastia ,impotence, decreased libido in males), crosses blood brain barrier and causes confusion and headaches, and crosses the placenta, decreases creatinine
Aluminum hydroxide side effects
Proximal muscle weakness, osteodystrophy, seizures
Magnesium hydroxide
Diarrhea, hyporeflexia, hypotension, cardiac arrest (from excess magnesium)
Metoclopramide
- D2 antagonist leading to increased resting tone, contractility, LES tone, motiliy, promotes gastric emptying
- AE: Parkinsonian effects, tardive dyskinesia, restlessness, drowsiness, fatigue, depression, diarrhea
Doxorubicin and danorubicin mech and AE
- Free radicals and DNA intercolation
- Solid tumors, leukemias and lymphomas
- AE: Cardiotoxicity, myelosuppression, alopecia
How do you treat the cardiotoxicity in Doxorubicin and daunorubicin
Dexrazoxane
What is the presentation of langerhans histiocytosis
- Childhood presentation of lytic bone lesions and skin rash
- Recurrent otitis media with mass in mastoid bone
What is the pathogenesis of langerhans histiocytosis
Cells are funcitonally immature and do not effectively stimulate primary T cells via androgen presentation. Birbeck granules are characteristic
Markers for langerhans histiocytosis
S100, CD1a, Birbeck granules
Neurologic side effects of phenytoin and fosphenytoin
- Nystagmus
- diplopia
- ataxia
- sedation
- peripheral neuropathy
Dermatologic side effects of phenytoin and fosphenytoin
- hirsutism
- DRESS syndrome
Reproductive side effects of phenytoin and fosphenytoin
- Teratogenesis
- P450 induction
What is the order of appearance of EPS
ADAPT
- Acute dystonia
- Akasthesia, Parkinsonism
- Tardive dyskinesia
What are the major side effects of SSRIs
GI distress, SIADH, sexual dysfunction
P450 inducers
- Chronic alcohol
- St Johns wort
- Phenytoin
- Phenobarbital
- Nevirapine
- Rifampin
- Griseofulvin
- Carbamazepine
P450 inhibitors
- Sodium valproate
- Isoniazid
- Cimetidine
- Ketoconazole
- Fluconazole
- Acute alcohol
- Chloramphenicol
- Erythromycin
- Sulfonamides
- Cipro
- Omeprazole
- Metronidazole
Montelukast and zafirlukast mechansim
Antagonism of LTC4, LTD4, LTE4 receptors
Zileuton mechanism
5LOX inhibition
Purkinje cells function
Output from deep nuclei of cerebellum to contralateral cortex via superior cerebellar pedunkle
Cerebellar input
- Contralateral cortex via middle cerebellar peduncle input
- Ipsilateral proprioceptive information via inferior cerebellar peduncle from spinal cord
Why does the pupil blow out when you injure cranial nerve III
Parasympathetic output goes through this nerve
What is the major use of aminoglycosides
Gram negative rod infections, synergistic with beta lactams
Neomycin for bowel surgery
What are some adverse effects of cephalosporins
- Hypersensitivity
- Autoimmune hemolytic anemia
- Disulfiram reaction
- vitamin K deficiency
Adverse effects of azoles
Testosterone synthesis inhibition, liver dysfunction
What is the mech of azoles
Inhibit ergosterol synthesis by inhibiting the P450 enzyme that converts lanosterol to ergosterol
Terbinafine mechanism
Inhibit fungal enzyme squaline epoxidase
Echinocandin mechanism
Inhibit cell wall synthesis by inhibiting beta glucan
Griseofulvin mech
Interfere with microtubule funciton to distrupt mitosis, depositing in keratin containing tissues
Number needed to treat
NNT = 1/ARR
Number needed to harm
NNH = 1/AR
Attributable risk
difference in risk between the exposed and unexposed groups
Relative risk
Used in cohort studies. RIsk of developing disease in exposed divided by the risk of developing disease in unexposed group
Hair differences in hypothyroidism and hyperthyroidism
- Hypo: Cool skin and coarse brittle hair (hippos are thick)
- Hyper: Warm moist skin with fine hair (not enough time to get thick)
What is the feature that gives away a thyroid CARCINOMA
Capsular invasion C = Carcinoma
What nerve is compressed in carpal tunnel syndrome?
- Median nerve leading to paresthesia, pain and numbness in distribtion of median nerve
Fall on outstretched hand brakes what bone
Scaphoid
Dislocation of what bone can cause carpal tunnel
Lunate
What is the cause of ape hand?
Damage to the recurrent branch of the median nerve usually from palmar laceration meaning that there is loss of thenar muscle group, opposition, abduction, and flexion of the thumb
Why is the syncytiotrophoblast at particular risk for attack by the maternal immune system
It lacks MHC1 expression
Rock hard mass with sharp margins and small glandular cells
Invasive ductal carcinoma
What stones can you see on X ray?
- Calcium
- Ammonium magnesium phosphate
MUDPILES
- Methanol
- Uremia
- DKA
- Propylene glycol
- Iron tablets or INH
- Lactic acidosis
- Ethylene glycol
- Salicylates (late)
HARDASS
- Hyperalimentation
- Addison
- RTA
- Diarrhea
- Acetazolamide
- Spironolactone
- Saline infusion
ATII receptor blockers
Lostartan SARTANS
Competitive antagonists of aldosterone receptors
Spinronolactone and eplerenone
Blockers of Na+ channels in the cortical collecting tubule
Tramterene and amilioride
Features of transcortical motor aphasia
Nonfluent speech but intact comprehension
Transcortical sensory aphasia features
Fluent speech but impaired comprehension
Transcortical mixed aphaisa features
Nonfluent speech and impaired and comprehension impaired
How long does it take for glycogen to be depleted
1 day
What reactions take place in the mitochondria
Fatty acid oxidation
AcetylcoA production
TCA cycle
Oxidative phosphorylation
Ketogenesis
What reactions take pace in the cytoplasm
Glycolysis, HMP shunt, steroid synthesis, proteins, fatty acids, cholesterol, and nucleotides
What takes place in both mitochondria and cytoplasm
Heme synthesis, urea cycle, gluconeogenesis
Superinfection of Hep B and D vs Coinfection in terms of incubation time
B and D superinfection has a much shorter incubation period
NNRTIs
Delavirdine, efavirenz, nevirapine
Octreotide
- Somatostatin analog; inhibits secretion of various splanchnic vasodilatory hormones
- Acute vericeal bleeds, acromegaly, VIPoma, carcinoid tumors
- Nausea cramps steatorrhea, increased risk of cholelithiasis due to CK inhibition
Which kind of herniation leads to CNIII
Uncal herniation
Leuprolide
GnRH analog with agonist properties when used in pulsatile fashion and antagonist properties when used in continuous fashion
Tuberus sclerosis symptoms
HARMARTOMAS
- H: Hamartomas in CNS and skin
- Angiofibromas
- Mitral regurg
- Ash leaf spots
- Rhabdomyoma
- Tuberous sclerosis
- autosomal dOminant
- Mental retardation
- renal Angiomyolipoma
- Seizures
- Shagreen patches
NF2
AD, bilateral acousic schwannomas, juvenile cataracts, meningiomas, ependymomas
5 alpha reductase deficiency
46 XY
- female external genitalia with scant axillary and pubic hair, rudimentary vagina; uterus and fallopian tubes absent
- Normal functioning testes
- Internal genitalia are normal
Ethambutol mechanism
Decreased carbohydrate polymerization of mycobacterium cell wal by blocking arabinosyltransferase
Rifampin mechanism
inhibit DNA dependent RNA polymerase
IOU what does this mean
Inferior oblique tested looking UP
Direct thrombin inhibitors
Bivalrudin, argatroban, dabigatran
Use of direct thrombin inhibitors
Venous thromboembolism, atrial fibrillation, possibly heparin induced thrombocytopenia
Difference between first and second generation sulfonylureas
- First: disulfiram like reactions
- Second: Hypoglycemia
GLP1 analogs
Exenatide, liraglutide
Colorectal cancer presentation areas
Rectosigmoid more than ascending more than descending
Orlistat
- INhibitor of pancreatic and gastric lipase
- Causes steatorrhea and decreases absorption of fat soluble vitamins
What is indicated by suppression via high dose dexamethasone
Cushing disease
Things that cause warm autoimmune hemolytic anemia
SLE and CLL and with certain drugs
Intravenous anesthetics
Thiopental, midazolam, ketamine, propofol, opioids
Inhaled anesthetic that causes:
- Hepatotoxicity:
- Nephrotoxicity
- Convulsions:
- Hepatotoxicity: Halothane
- Nephro: Methoxyflurane
- Proconvulsant: Enflurane
Side effects of low potency antipsychotics
Anticholinergic, antihistamine, anti alpha 1
Which atypical antipsychotic causes obesity
Olanzapine
Side effects of atypical antipsychotics
Prolonged QT, fewer EPS and anticholinergic side effects
Anti louse antibiotics mech
PML (permethrin, malathion, lindane) NAG (Na, Ache, GABA, blockade)
Odansetron mech
- 5HT3 antagonist, decrease vagal stim to be an antiemetic
- AE: Headache, constipation, QT prolongation, serotonin syndrome
Vancomycin use
Gram + only, including MRSA
Aztreonam uses
Gram - rods, no activity against gram +
Carbapenems use
Gram + cocci and gram - rods as well as anaerobes
1st gen cephalosporins use
PEcK
Proteus, e coli, klebsiella
2nd gen cephalosporin uses
HENS PEck
- H flu
- Enterobacter aerogenes
- Neisseria
- Serratia
- Proteus
- E coli
- Klebsiella
Clindamycin uses
Anaerobes in aspiration mneumonia, lung abscesses, oral infections
Anaerobic infections above and below the diaphragm
Metro = below, clinda = above
Glucose dependent insulinotropic peptide
- K cells
- Decreases H+ secretion, increases insulin
- Increased by fatty acids, amino acids, oral glucose
- Also known as GIP
Trimethoprim mech and AE
- Inhibit DHF reductase in bacteria
- AE: Megaloblastic anemia, leukopenia, granulocytopenia
- TREATS MARROW POORLY
Sulfonimides mech and AE
- Mech: Dihydropteroate synthase
- AE: Photosensitivity, SJS, hemolysis if G6PD deficient, kernicterus
Fenlodopam
- D1 agonist leading to coronary peripheral, renal and splanchnic vasodilation
- Increased natriuresis
- Can cause hypotension and tachycardia
Symptoms of kawasaki disease
CRASH and burn
- Conjunctival injection
- Rash
- Adenopathy
- Strawberry tongue
- Hand foot changes
- Fever
Symptoms of giant cell arteritis
Usually elderly females having unilateral headach, jaw claudication leading to irreversible blindness due to opthalmic artery occlusion, associated with polymyalgia rheumatica
Takayasu arteritis
Pulseless disease (weak upper extremity pulses), fever, night sweats, arthritis, myalgias, skin nodules, ocular disturbances. Granulomatous thickening and narrowing of aortic arch and proximal great vessels
Granulomatosis with polyangiitis
Triad of focal necrotizing vasculitis, necrotizing granulomas in the lung and upper airway, necrotizing glomerulonephritis. PR3-ANCA/cANCA. CXR shows nodular densities
Eosinophilic granulomatosis with polyangiitis
Asthma, sinusitis, skin nodules or purpura with peripheral neuropathy showing MPO-ANCA/p-ANCA, increased IgE, and granulomatous necrotizing vasculitis with eosinophilia
Henoch shonlein purpura
Triad of skin (palpable purpura on buttocks/legs), arthralgias, GI (abdominal pain), caused by IgA immune complex deposition
Primary hypertension treatment
- Thiazide diuretics
- ACE inhibitors
- Angiontensin II blockers
- DHP calcium channel blockers
Hypertension with heart failure treatment
- Diuretics
- ACE inhibitors/ARBs
- Beta blockers (compensated HF)
- ALdosterone antagonists
Hypertension with diabetes mellitus medications
- ACE inhibitors/ARBs
- Ca2+ channel blockers
- Thiazide diuretics
- Beta blockers
Hypertension in pregnancy medications
Hydralazine, lebetalol, mehyldopa, nifedipine
Amylin analogs action
- Mech: decreased gastric emptying, decreased glucagon
- Pramlintide
Acarbose and miglitol
Inhibit brush border alpha glucosidases, decreased carbohydrate hydrolysis and glucose absorption leading to decreased postprandial hyperglycemia
Gliptans
Inhibit DPP4 enzyme that deactivates GLP1
GLP1 function
Increased glucose dependent insulin release, decreased glucagon release, decreased gastric emptying, increased satiety
Sulfonylureas mech
Close K+ channel leading to insulin release
Things that cause crescentig glomerulonephritis
- Goodpasture syndrome: type II hypersensitivity reaction; antibodies to GBM and alveolar basement membrane
- Granulomatosis with polyangiitis (Wegener): cANCA/PR3-ANCA
- Microscopic polyangiitis: MPO-ANCA/p-ANCA
Type I membranoproliferative glomerulonephritis
secondary to hep B or C infection
Membranous nephropathy
Most common cause of primary nephrotic syndrome. Can be caused by antibodies to phospholipase A2 receptor or secondary to drugs, infections, SLE, or solid tumors
Diabetic glomerulonephropathy features
- Nonenzymatic glycosylation of GBM leading to increased permeabilityt and thickening
- Common cause of end-stage renal disease in the united states