Brian Shared "DEMS III" - 35 Picmonics

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DEMS III

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
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
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
Ornithine Transcarbamylase Deficiency
Pathophysiology
Most Common Urea Cycle Disorder
X-Linked Recessive
Signs and Symptoms
Hyperammonemia
Decreased BUN
Carbamoyl Phosphate is Converted to Orotic Acid
Pyrimidine Synthesis Pathway
Evident in Babies
3 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
Orotic Aciduria
Pathophysiology
Autosomal Recessive
Defect in UMP Synthase
De Novo Pyrimidine Synthesis Pathway
Symptoms
Increased Orotic Acid in Urine
Megaloblastic Anemia
No Response to B12 or Folate
Non-Hyperammonemic
Failure to Thrive
Treatment
Oral Uridine Monophosphate
2 mins
Hyperammonemia
Pathophysiology
Hereditary Urea Cycle Defects
Acquired Through Liver Disease
Inhibits the Citric Acid Cycle
Signs & Symptoms
Somnolence
Slurring of Speech
Tremor
Cerebral Edema
Vomiting
Blurring of Vision
Treatment
Limit Protein in Diet
Lactulose
Benzoate Binds Amino Acid for Excretion
Phenylbutyrate
4 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
Adenosine Deaminase Deficiency
Adenosine to inosine
Excess ATP
Inhibition of Ribonucleotide Reductase
Prevents DNA synthesis
Decreases B Cells and T Cells
Major cause of SCID
1 min
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
Fabry's Disease
Pathophysiology
X-linked Recessive
Alpha-galactosidase A Deficiency
Increased Ceramide trihexoside
Early Signs and Symptoms
Decreased Sweating (Hypohidrosis)
Angiokeratoma
Episodic Peripheral Neuropathy
Late Signs and Symptoms
Cardiovascular Disease
Renal Failure
1 min
Hunter Syndrome
Pathophysiology
X-linked Recessive
Mucopolysaccharidoses
Iduronate Sulfatase Deficiency
Increased Dermatan Sulfate
Increased Heparan Sulfate
Signs and Symptoms
No Corneal Clouding
Aggressive Behavior
1 min
Niemann-Pick Disease
Pathophysiology
Autosomal Recessive
Sphingomyelinase Deficiency
More Common in Ashkenazi Jewish Population
Signs and Symptoms
Cherry Red Spot on Macula
Hepatosplenomegaly
Neurodegeneration
Diagnosis
Foam Cells
1 min
Hurler Syndrome
Pathophysiology
Autosomal Recessive
Mucopolysaccharidoses
Alpha-L-Iduronidase Deficiency
Increased Heparan Sulfate
Increased Dermatan Sulfate
Signs and Symptoms
Hepatosplenomegaly
Developmental Delay
Gargoylism
Corneal Clouding
Airway Obstruction
2 mins
Tay-Sachs Disease
Pathophysiology
Autosomal Recessive
Hexosaminidase A Deficiency
Increased GM2 Ganglioside
More Common in Ashkenazi Jewish Population
Signs and Symptoms
Cherry Red Spot on Macula
Neurodegeneration
Developmental Delay
Diagnosis
Onion Skin Lysosomes
1 min
Krabbe Disease
Pathophysiology
Autosomal Recessive
Galactocerebrosidase Deficiency
Increased Psychosine
Signs and Symptoms
Developmental Delay
Peripheral Neuropathy
Optic Atrophy
Diagnosis
Globoid Cells
1 min
Gauchers Disease
Pathophysiology
Autosomal Recessive
Beta Glucocerebrosidase Deficiency
Diagnosis
Lipid-laden Macrophages
Crumpled Tissue Paper
Signs and Symptoms
Osteoporosis
Bone Crises
Aseptic Necrosis of Femur
Erlenmeyer Flask Deformity
Hepatosplenomegaly
Pancytopenia
2 mins
Metachromatic Leukodystrophy
Pathophysiology
Autosomal Recessive
Arylsulfatase A Deficiency
Increased Cerebroside Sulfate
Signs and Symptoms
Demyelination
Ataxia
Dementia
1 min
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
Vitamin A (Retinol) Function and Deficiency
Mechanism
Retinol
Constituent of Visual Pigments
Differentiation of Epithelial Cells into Specialized Tissue
Signs and Symptoms
Night Blindness
Dry Skin
Considerations
Used to Treat Measles
Antioxidant
2 mins

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