Stephen Shared "MN Disorders" - 19 Picmonics

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MN Disorders

Lesch-Nyhan Syndrome
X-linked Recessive
Absence of HGPRT
Hypoxanthine to IMP
Guanine to GMP
Excess uric acid
Gout
Retardation
Self-mutilation
Choreoathetosis
PRPP is increased
2 mins
Homocystinuria
Pathophysiology
Autosomal Recessive
4 Forms
Cystathionine Synthase Deficiency
Decreased Affinity of Cystathionine Synthase For Vitamin B6
Methionine Synthase Deficiency
Methylenetetrahydrofolate Reductase (MTHFR) Deficiency
Signs and Symptoms
Marfanoid Body Habitus
Kyphosis
Lens Subluxation (Inferior)
Intellectual Disability (Mental Retardation)
Atherosclerosis
Consideration
Dietary Deficiencies Can Elevate Homocysteine Levels
3 mins
Maternal Phenylketonuria
Pathophysiology
Lack of Proper Diet During Pregnancy; Like NutraSweet
Signs and Symptoms
Congenital Heart Defects
Growth Retardation
Intellectual Disability (Mental Retardation)
Microcephaly
1 min
Phenylketonuria (PKU)
Pathophysiology
Decreased phenylalanine hydroxylase
Decreased tetrahydrobiopterin cofactor
Autosomal Recessive
Tyrosine Becomes Essential
Phenylalanine found in Nutrasweet
Symptoms
Musty or mousy body odor
Growth retardation
Seizures
Intellectual Disability (Mental Retardation)
Hypopigmentation
2 mins
Gout Disease
Acute Inflammatory Monoarthritis
Epidemiology
Primarily in Males
Pathophysiology
Precipitation of Monosodium Urate Crystals
Underexcretion of Uric Acid
Overproduction of Uric Acid
Negatively Birefringent, Needle-Shaped
Symptoms
Swollen, Red, Painful Joint
Asymmetric Joint Distribution
Podagra
Tophus
After Large Meal or Alcohol
2 mins
Gout Treatment
Acute (Acute-angle)
NSAIDs
Glucocorticoids
Colchicine
Impairs Leukocyte Chemotaxis
Chronic Gout (Crone Goat)
Inhibit Xanthine Oxidase
Allopurinol
Febuxostat
Inhibit Reabsorption of Uric Acid
Probenecid
1 min
Pyruvate Dehydrogenase Deficiency
Characteristics
Acquired from Thiamine Deficiency
Backup of Alanine and Pyruvate
Symptoms and Complications
Neurologic Defects
Lactic Acidosis
Interventions
Ketogenic Nutrients
Lysine and Leucine (Ketogenic Nutrients)
56 secs
Maple Syrup Urine Disease
Pathophysiology
Defect in alpha ketoacid dehydrogenase
Blocked degradation of branched chain amino acids
Leucine
Isoleucine
Valine
Signs and Symptoms
Seizures
Intellectual Disability (Mental Retardation)
1 min
Vitamin B1 (Thiamine)
Mechanism
Branched-chain Ketoacid Dehydrogenase
Pyruvate Dehydrogenase
Alpha-ketoglutarate Dehydrogenase
Transketolase
DEFICIENCY EFFECTS
Wernicke-Korsakoff Syndrome
Beriberi
ATP Depletion
Aerobic Tissues Like Brain and Heart Affected First
Considerations
Deficiency Can Worsen with Glucose Infusion
2 mins
Vitamin B5 (Pantothenate)
Mechanism
Pantothenate
Pyruvate Dehydrogenase
Coenzyme A
Fatty Acid Synthase
Deficiency Signs and Symptoms
Enteritis
Dermatitis
Alopecia
Adrenal Insufficiency
2 mins
Biotin (Vitamin B7)
Mechanism
Carboxylation reaction
Pyruvate carboxylation to oxaloacetate
Propionyl-CoA carboxylation to methylmalonyl-CoA
Acetyl-CoA carboxylation to malonyl CoA
Deficiency Causes
Antibiotic Use
Ingestion of Raw Eggs
Signs & Symptoms
Alopecia
Dermatitis
Enteritis
2 mins
Lead Antidotes
Antidotes
Penicillamine
Dimercaprol
CaEDTA
Succimer
58 secs
Arsenic, Gold and Copper Antidotes
Toxic Metals
Arsenic
Gold
Copper
Antidotes
Penicillamine
Dimercaprol (BAL)
Succimer
2 mins
Cystinuria
Pathophysiology
Defect of Renal Tubular Amino Acid Transporter
C-O-L-A Acronym
Cystine
Ornithine
Lysine
Arginine
Signs and Symptoms
Excess Cystine in Urine
Hexagonal Crystals
Staghorn Kidney Stones
Diagnosis
Cyanide Nitroprusside Test
Treatment
Acetazolamide to Alkalinize the Urine
3 mins
Hartnup Disease
Pathophysiology
Autosomal Recessive
Neutral amino acids
Defective Transporter
Renal and Intestinal cells
Signs and Symptoms
Causes tryptophan excretion in urine
Leads to Pellagra
Diarrhea
Dermatitis
Dementia
2 mins
Von Gierke Disease
Pathophysiology
Autosomal Recessive
Type I Glycogen Storage Disease
Glucose-6-Phosphatase Deficiency
Signs and Symptoms
Increased Glycogen in Liver
Hepatomegaly
Enlarged Kidneys
Severe Fasting Hypoglycemia
Increased Triglycerides
Increased Uric Acid (Gout)
Increased Lactic Acid
Doll-like Facies
Treatment
Continuous Oral Glucose (or Cornstarch)
Avoid Fructose and Galactose
2 mins
Pompe Disease
Pathophysiology
Type II Glycogen Storage Disease
Autosomal Recessive
Deficiency of Lysosomal Alpha 1,4 Glucosidase
Acid Maltase
Signs and Symptoms
Hypertrophic Cardiomyopathy
Hepatomegaly
Macroglossia
Hypotonia
Diagnosis
Increased Glycogen within Lysosomes
Increased Lactate Dehydrogenase (LDH)
Increased Creatine Kinase (CK/CPK)
2 mins
Cori Disease
Pathophysiology
Type III Glycogen Storage Disease
Deficiency of Alpha 1, 6 Glucosidase
Debranching Enzyme
Limit-Dextrin Accumulation (In Cytosolic Structures)
Signs and Symptoms
Hypoglycemia
Muscle Weakness
Hypotonia
Stunted Growth
Hepatomegaly
Diagnosis
Normal Blood Lactic Acid Levels
Gluconeogenesis Intact
Increased LFT's
Increased Creatine Kinase (CK/CPK)
Treatment
Continuous Feeding
High Protein Diet
Cornstarch (Uncooked)
4 mins
McArdles Disease
Pathophysiology
Type V Glycogen Storage Disease
Muscle Glycogen Phosphorylase Deficiency
Signs and Symptoms
Increased Glycogen in Muscle
Painful Muscle Cramps
Myoglobinuria
Normal Lactic Acid
Treatment
Vitamin B6
2 mins

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