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  • 7/28/2019 Biochemistry Word Association

    1/12

    BIOCHEMISTRY WORD ASSOCIATION

    Leafy Vegetables Vitamin A

    Pyridoxine B6

    Niacin B3

    Pantothenate B5

    Vitamin K

    dependent factors

    II, VII, IX, X, protein

    C and SProtein

    malnutrition, fatty

    liver, big belly

    Kwashiokor

    Location of Vitamin

    D conversionPCT in kidneys

    TTP Thiamine (B1)

    FAD, FMN Riboflavin (B2)

    Stored in the liverB12 (cobalamin and

    folate)

    PLP Pyridoxine (B6)

    Keeps iron in Fe2+form and absorption

    Vitamin C

    Chelilosis and

    Corneal

    Vascularization

    Riboflavin deficiency

    Energy

    malnutrition,

    muscle wasting,

    skinny as bones

    Marasmus

    Deficiency causes

    macrocytic anemiaWITH neurological

    problems

    Vitamin B12Cobalamin

    Absorption

    dependent on the

    gut and pancreas

    Fat soluble vitamins

    Deficiency includes

    peripheral

    neuropathy

    B6 (Pyridoxine)

    Diarrhea, Dementia,

    and DermatitisPellagra

    NADH/NAD+ ratioin liver Ethanol metabolismAlcoholism Thiamine deficiency

    Most common

    deficiency in USFolate

    Cofactor in PPP Thiamine B1

    Helps convert

    dopamine NE Vitamin C

    Deficiency caused

    by excessive raw

    egg consumption

    Biotin

    Abnormal myelinVitamin B12

    deficiency

    Green Leaves FolateCoenzyme for 1

    carbon transfersFolate

    Synthesized only by

    bugs

    Vitamin B12

    Cobalamin

    Excess seen in

    sarcodosis

    Vitamin D and

    calcium.

    Inhibits

    gluconeogensis and

    hypoglycemiaEthanol

    Malabsorption, lack

    of intrinsic factor,absence of terminal

    ileum

    Causes of vitaminB12 deficiency

    Enzyme that

    activates vit D1 hydroxylase

    Deficiency causes

    scurvyVitamin C

    Deficiency induced

    by INH and oral

    contraceptives

    Vitamin B6

    Pyridoxine

    Shunts away from

    glycolysis andtoward fatty acid

    synthesis fattyliver

    Chronic alcoholism

    Antioxidant Vitamin E

    PellagraVitamin B3 (niacin)

    deficiency

    NAD+ is the limiting

    reagent

    In ethanol

    metabolism

    Dermatitis, glossitis,

    and diarrhea

    B-complex

    deficienciesHydroxylation of

    proline and lysine in

    collagen syn.

    Vitamin C

    Important in

    synthesis of DNA

    and RNA

    Folate

    Cobalamin B12

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    BIOCHEMISTRY WORD ASSOCIATION

    NAD+ Niacin- B3

    Macrocytic anemia

    WITHOUT

    neurological

    problems.

    Folate deficiency

    INH depletes this B6- pyridoxineSynthesized by

    intestinal floraVitamin K

    Derived from

    tryptophan using

    vitamin B6

    Niacin (B3)

    BeriBeri

    Vitamin B1

    (thiamine)

    deficiency

    Constituent of CoA B5 (pantothenate)

    Wernicke-Korsakoff

    syndrome

    Vitamin B1

    (thiamine)deficiency

    Given to a newborn

    at birth to prevent

    hemorrhage

    Vitamin K

    Deficiency caused

    by antibiotic useBiotin

    Thiamine B1

    Active form of

    vitamin D

    Calcitriol (1,25 (OH)2

    D3

    Schilling Test Vitamin B12

    Catalyzes -carboxylation ofglutamic acid on

    blood factors

    Vitamin K

    Blocks vitamin K Warfarin

    Deficiency cause

    night blindness and

    dry skin

    Vitamin A

    Involves conversion

    of homocysteinemethionine

    Vitamin B12

    Reduces neural tubedefects Folate

    NUTRITIONAL SECTION

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    BIOCHEMISTRY WORD ASSOCIATION

    MOLECULAR SECTION

    The only histone

    NOT in the

    nucleosome core

    H1

    RNA Polymerases

    I rRNAII mRNA

    III- tRNA

    I Ran 2 My 3 Trees

    Substituting a

    purine for a purine

    or pyrimidine for

    pyrimidine

    Transition

    3 steps of

    translation

    Initiation

    Elongation

    Termination

    Start codon alsomethionine

    AUG

    Complex RNA

    PolymeraseProkaryotes

    Amino acids

    necessary for purine

    synthesis

    GAG: Glycine,

    Asparate, and

    Glutamine

    DNA Polymerase I

    and IIIProkaryotic

    P siteAccommodates

    growing Peptide

    Specific glycosylasesrecognize and

    remove damaged

    bases, AP

    endonuclease cuts

    DNA at apyrimidinic

    site, empty sugar is

    removed

    Base excision repair

    More than 1 codon

    may code for the

    same aa

    Degenerate/

    redundant

    Prevents repair ofthymidine dimers

    Mutation in

    xeroderma

    pigmentosum

    5 3- synthesisand proofreads with

    35 exonucleaseDNA polymerase III

    E siteHolds empty tRNA

    as it Exits

    Less condensed, Euchromatin

    transcriptionally

    active chromatin

    Inhibits RNA

    polyermase II- amanitin

    A site

    Incoming Aminoacyl

    tRNAUnmethylated,

    newly synthesized

    string is recognized,

    mismatched

    nucleotides are

    removed

    Mismatch repair

    snRNPsInvolved in pre-

    mRNA splicing

    mRNA reads from .. 53

    Mismatch repair ismutated in this

    Hereditary

    nonpolyposiscolorectal cancer

    (HNPCC)

    mRNA stop codon

    U Go Away UGA

    U Are Away UAA

    U Are Gone UAG

    RNA Polymerases I,

    II, IIIEukaryotes

    Specific

    endonucleases

    release the

    oligonucleotide-containing damaged

    bases

    Nucleotide excision

    repair

    Tm increases

    (melting increases)

    With ed G-Ccontent in DNA

    Substituting a

    purine for a

    pyrimidine or vice

    versa

    Transversion

    Condensed,

    transciptionally

    inactive chromatin

    Heterochromatin

    Excises RNA primer

    with 53exonuclease

    DNA Polymerase I

    Each codon

    specifies only 1 aaUnambiguous

    CELLULAR SECTION

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    BIOCHEMISTRY WORD ASSOCIATION

    Inhibit G1 Sprogression

    Rb and p53 tumor

    suppressors

    Most commonly

    effected collagen in

    Ehlers-Danlos

    Type III

    Caused by a defectin fibrillin

    Marfans syndrome

    Bone, tendon, skin,

    late wound healing

    collagen type

    Type I

    Cross links to make

    collagen fibers

    Covalent lysine-

    hydroxylysine

    Caused by excess

    elastase activityEmphysema

    Permanent cells

    (stay in Go phase)

    Cardiac and skeletal

    cells, neurons, RBCs

    Mechansim of theblue sclera

    Translucency of theCT over the choroid

    ATPase that links

    peripheral 9

    doublets of

    microtubules,causes

    bending of cilium

    Dynein

    What step in

    collagen synthesis is

    inhibited by scurvy?

    Hydroxylation of

    proline and lysine

    residues

    Collagen for

    granulation tissueand CT Type III

    Vesicular trafficking

    protein transGolgi

    lysosomes andplasma membrane

    endosomes

    Clathrin

    Disease due to a

    microtubule

    polymerization

    defect inphagocytosis

    Chediak-Higashi

    Syndrome

    Blue ScleraOsteogenesis

    imperfecta

    Made of

    polymerized dimers

    of and tubulin MicrotubulesCollagen on the BM Type IV

    Collagen disease Ehlers-Danlos

    associated with

    berry anerysms

    Act like RER in

    neurons, synthesize

    of enzymes and

    peptide NTs

    Nissl Bodies

    Disease that results

    from an aa

    substitution of

    glycine cysteinethat messes up 3x

    helix of procollagen

    Osteogenesis

    imperfecta

    Vesicular trafficking

    protein retrograde

    golgi ERCOPI

    Cartilage, hyaline,

    vitreous body,nucleus pulposus

    Type II

    Immotile cilia due

    to a dynein arm

    defect that results

    in infertility,

    bronchiectasis, and

    recurrent sinusitis

    Kartageners

    syndrome

    Failure of addition

    of mannose-6-

    phosphate to

    lysosome proteins

    I cell disease

    Site of steroid

    synthesis and

    detoxification of

    drugs and poisons

    SER

    Major component

    of RBC membranes,

    myelin, bile and

    surfactant

    Phosphtidylcholine

    (Lecithin)

    Labile cells (never

    go Go, divide fast)

    Bone marrow, gut

    epi, skin, hair follicle

    Vesicular trafficking

    protein anterograde

    from RER GolgiCOPII

    Stable (quiescent)

    cells (G1 from Go

    when stimulated)

    Ex. Hepatocytes,

    lymphocytes, etc

    METABOLISM SECTION

    Causes a backup of Alcoholism, pyruvate

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    BIOCHEMISTRY WORD ASSOCIATION

    pyruvate and

    alanine lacticacidosis

    dehydrogenase

    deficiency

    Use anaerobic

    glycolysis

    RBCs, leukocytes,

    kidney medulla, lens,

    testes, and corneaATPase inhibitor in

    ETCOligomycin

    TCA Cycle

    components

    Citrate Is Krebs

    Starting Substrate For

    Making Oxaloacetate

    Irreversible

    enzymes

    Hexokinase/

    glucokinase,

    phosphofructokinase

    Pyruvate kinase,

    pyruvate

    dehydrogenase,citrate synthase,

    isocitrate

    dehydrogenase, -ketoglutarate

    dehydrogenase

    Form of amino

    acids found in

    proteins

    L amino acids

    Rate determining

    enzyme for de

    novo pyrimidime

    synthesis

    Aspartate

    transcarbamylase

    Asparate Oxalacetate

    Uncoupling agents

    2,4-DNP, aspirin,

    thermogenin in

    brown fat, alcohol

    NADPH is used in

    these three

    processes

    1. Anabolic2. Respiratory

    burst

    3. P-450Absence of

    galactose-1-p

    uridyltransferase

    Galactosemia build

    up of toxic galactitol

    Retardation, self-

    mutilation,

    aggression, gout

    Symptoms of Lesch-

    Nyhan Syndrome

    Conversion of

    homocysteine to

    methionine uses

    this cofactor

    Vitamin B12

    Altered

    hemoglobin

    precipitates in

    RBCs

    Heinz bodies

    Deficiency in

    hexosaminidase A accumulationof GM2

    ganglioside

    Tay-Sachs disease

    Glutathione PPP shunt

    Ammonium in

    transported via

    two amino acids

    Alanine and

    glutamate

    Complex I

    inhibitor in ETCRotenone

    Glutamate -ketoglutarate

    Rate determiningenzyme for

    gluconeogenesis

    Fructose 1,6

    bisphophatase

    Amino acids that

    are ed inhistones

    Arginine and Lysine

    Galactosemia

    causes

    Cataracts,

    hepatosplenomegaly

    mental retardation

    Glucokinase is

    used instead of

    hexokinase inthese tissues

    Liver and cells of

    pancreas

    Deficiency in

    sphinomyelinase

    accumulationof sphinomyelin

    Niemann-Pick disease

    Amino acids that

    are glucogenic

    Methionine, Valine,

    Arginine, Histidine

    Deficient in

    chronic

    granulomatous dx

    NADPH oxidase

    Deficiency in -galactosidase A

    accumulation of

    ceramide

    trihexoside

    Fabrys disease

    Alanine Pyruvate

    Rxn catalyzed by

    myeloperoxidase

    H202 + Cl HOCl*

    (bleach)

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    BIOCHEMISTRY WORD ASSOCIATION

    Dont need insulin

    for glucose uptake

    BRICK LBrain, RBC,

    Intestine, Cornea,

    Kidney, Liver

    Deficiency in -glucocerbrosidase accumulation

    of

    glucocerebroside

    Gauchers disease

    (most common

    lysosomal disease)

    Rate determining

    enzyme for

    glycogen synthesis

    Glycogen synthase

    Ketone bodies are

    used by what in

    starvation

    Brain and heart

    Complex III

    inhibitor in ETC Antimycin A

    Inducible by

    insulin

    Glucokinase NOT

    hexokinase

    GLUT 1 Receptors RBCs, Brain

    Deficiency in

    galactocerebrosid

    asaccumulation of

    galactocerebrosid

    e

    Krabbes disease

    Congential defect

    in tyrosinase socant tyrosine

    melanin or

    defective tyrosine

    transporter

    Albinism

    Rxn catalyzed by

    superoxide

    dismutase

    O2* H2O2

    Cherry red spots,

    lysosomes with

    onion skin,

    neurodegeneration

    Tay-Sachs disease

    Has variable

    inheritance due to

    locus

    heterogeneity

    Albinism

    Deficiency in

    aldose B causes

    Fructose-1-P to build

    up and in

    availbalility of

    phosphate

    Rate determining

    enzyme for de

    novo purine

    synthesis

    Glutamine-PRPP

    amidotransferase

    Ms that look likecrumpled tissue

    pp

    Gauchers cells

    Cannot participate

    in gluconeogenesis

    Muscle cells (only

    liver, kidney, and epi

    cells can)

    GLUT 4 receptorsFat and muscle

    (respond to insulin)

    This is the product

    of the PPP shuntNADPH

    glycogen inmuscle, but

    cannot break it

    down painfulcramps,

    myoglobinuria

    with strenuous

    exercise

    McArdles disease

    (type V GSD)

    Without reduced

    glutathione, you

    cant convert what

    H202 2H20

    Hemolytic anemiaseen in this

    deficiency

    G6PD deficiency

    Deficiency in

    arylsufatase Aaccumulation of

    cerebroside

    sulfate

    Metachromatic

    leukodystrophy

    Mechanism of

    hemolytic anemia

    caused by G6PD

    deficiency

    in NADPH poordefense mechanisms

    to oxidizing agents

    Rate determining

    enzyme for TCA

    cycle

    Isocitrate

    dehydrogenase

    Congenital

    deficiency of

    homogentisic acid

    oxidase in

    degradation of

    Alkaptouria

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    BIOCHEMISTRY WORD ASSOCIATION

    tyrosine

    Tyrosine makes

    these

    Thyroxine, Melanin,

    Dopamine, NE, Epi

    Complex IV

    inhibitor in ETCCO, CN-

    Products oftryptophan

    Niacin, serotonin

    Central and

    peripheral

    demyelination

    with ataxia,

    dementia

    Metachromatic

    keukodystrophy

    Progressive

    neurogeneration,

    cherry-red spot on

    macula,

    hepatosplenomeg,foam cells

    Niemann-Pick disease

    Transketolases

    require this

    coenzyme

    Vitamin B1

    Location of FFA

    synthesisCytoplasm

    The porphyrin ring

    of heme is made

    from this amino

    acid

    Glycine

    Negative feedback

    at rate-limiting

    step of glycolysis

    ATP, citrate

    Ketone body not

    detected in the

    urine

    -hydroxybutyrate

    GLUT 2 Receptors cells, liver, kidneyRate determining

    enzyme for

    glycolysis

    Phosphofructokinase

    1

    Deficiency inMcArdles disease

    Skeletal muscle

    glycogen

    phosphorylase

    Made from

    PhenylalanineTyrosine

    Positive feedback

    for rate limiting

    step of glycolysis

    AMP, fructose 2,6-BP

    Delivers

    triglycerides to

    peripheral tissues

    and delivers

    cholesterol to

    back to liver inremnants

    Chylomicrons

    Product of

    histidineHistamine

    Essential

    fructosuria is a

    defect in

    Fructokinase

    Negative feedback

    at first step of

    glycolysis

    Glucose 6-P

    Lipoprotein that is

    secreted byintestinal epi cells

    Chylomicrons

    Complex

    dehydrogenases

    Pyruvate and -ketoglutarate

    In a fasting state

    when you need

    glucose

    Enzyme - Fructose

    bisphophatase 2

    Converts fructose-2.6-

    bisphosphate

    fructose 6-P

    glucose

    Result of

    phagocytic

    removal of Heinz

    bodies by MsBite cells

    Causes of

    hemolytic anemia

    in G6PD deficient

    patients

    Fava beans,

    sulfonamides,

    primaquine, anti-TB

    drugs

    The most potent

    activator of

    phosphofructokina

    s

    F2,6 BP

    Location of FFA

    degradation Mitochondria

    The only pure

    ketogenic amino

    acids

    Lysine and Leucine

    Rate determining

    enzyme for

    Glycogenolysis

    Glycogen

    phosphorylase

    Chylomicron B-48, A-IV, C-II, E

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    BIOCHEMISTRY WORD ASSOCIATION

    apolipoproteins

    Type of fatty acid

    that can serve as a

    glucose source

    Odd-chain fatty acids

    that yield 1 propionyl-

    CoA

    Mediates reverse

    cholesteroltransport. Acts as

    a repository for

    apoC and apoE

    HDL

    Activated carrier

    for aldehydesTPP

    LDL

    apolipoproteinsB-100

    Rate determining

    enzyme for urea

    cycle

    Carbamoyl phosphate

    synthase I

    Deficient enzyme

    in Coris Disease

    Debranching enzyme

    -1,6 glucosidaseGlutamate GABA, Glutathione

    Activated carrier

    for electrons

    NADH, NADPH,

    FADH2

    Gluconeogenesis

    starts with what

    Pyruvate

    oxalacetate in mito

    then PEP in cytosol

    Blocked

    degradation of

    branched aminoacids (Ile, Val, Leu)

    Maple Syrup Urine

    Disease

    Negative feedback

    for pyruateacetyl CoA in

    glycolysis

    ATP, NADH, acetyl-

    CoA

    Rate determining

    enzyme for fatty

    acid synthesis

    Acetyl-CoA

    carboxylase

    Disease caused by

    the absence of

    HGPRT

    Lesch-Nyhan

    Syndrome

    In an active fed

    state when you

    need to

    breakdown

    glucose

    Enzyme

    phosphofructokinase

    2 converts fructose 6-

    P Fructose2,6-P

    which is a POTENT

    activator of PFK-1

    Cofactors for

    pyruvate and -KG Pyrophosphate B1;TPP

    DH complex FAD B2

    NAD B3

    CoA B5

    Lipoic acid

    Glucose 6-

    phosphatasedeficiency

    resulting in

    accumulation of

    excessive glycogen

    Von Gierkes Disease

    Black urine and

    dark CTAlkaptonuria

    Negative feedback

    at PEP pyruvatein glycolysis

    ATP, alanine

    Adenosinedeaminase

    deficiency can

    cause this

    SCID prevents DNA

    synthesislymphocytes

    Positive feedback

    for PEPpyruvate in

    glycolysis

    Fructose 1,6 BP

    Rate determining

    enzyme for heme

    synthesis

    ALA synthase

    Milder form of

    type 1 GSD with

    normal blood

    lactate levels

    Coris disease (type III

    GSD)

    Delivers hepatic

    cholesterol to

    peripheral tissues.

    Taken up by target

    cells by

    endocytosis

    LDL

    Activated carrier

    CO2Biotin

    Converts

    hypoxanthineIMP and guanine

    GMPHGPRT

    Staghorn calculi

    Ammonium

    magnesium

    phosphate kidney

    stones

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    BIOCHEMISTRY WORD ASSOCIATION

    Activated carrier

    for CH3 groupsSAM

    Severe fasting

    hypoglycemia,glycogen in liver,

    blood lactate,hepatomegaly.

    Von Gierkes disease

    (type 1 GSD)

    Arginine Creatine, Urea, NO

    Rate determining

    enzyme for Fatty

    acid oxidation

    Carnitine

    acyltransferase I

    Lipoprotein that is

    secreted by both

    liver and intestine

    HDL

    in phenylalaninehydroxylase so

    cant tyrosinePKU

    What is ed inhyper

    cholesterolemia

    (Type IIa familial

    dyslipidemia)

    LDL with elevated

    levels of cholesterol in

    the blood

    GSD that results in

    cardiomegaly and

    systemic findings

    early death

    Pompes disease (type

    II GSD)

    Delivers hepatictriglycerides to

    peripheral tissues

    VLDL

    Activated carrier

    for 1-carbon unitsTetrahydrofolates

    Activated carrier

    for acyl

    Coenzyme A,

    lipoamide

    Lipoprotein that is

    secreted by the

    liver

    VLDL

    Treatment for CN-

    poisoning

    Use nitrites to oxidize

    Hb to MetHb which

    will bind CN- then use

    thiosulfate to bind

    this CN forming

    thiocyanate which is

    renally excreted

    Form of Hb that

    has low affinity for

    O2

    T (tense)

    Oxidized form of

    Hb has affinityfor CN

    Methemoglobin

    VLDL

    apolipoproteinB-100, C-II and E

    Treatment of

    jaundice

    newborns

    Exposure to UV lightconverts bilirubin

    urine-soluble

    products

    Rate determining

    enzyme for

    ketogenesis

    HMG-CoA synthase

    Deficient enzyme

    in Pompes

    disease

    Lysosomal 1,4-glucosidase

    Activated carrier

    for phoshoryl

    ATP

    Deficient enzyme

    in Von Gierkes Dx

    Glucose-6-

    phosphatase

    IDL

    apolipoproteinsB-100 and E

    phenylalanineand tyrosine

    consumption (no

    diet pops!)

    PKU

    Rate determining

    enzyme for

    cholesterolsynthes

    HMG-CoA reductase

    Gives bruises their

    blue green colorBiliverdin

    Lipoprotein lipase

    deficiency or

    altered

    apolipoprotein C-II

    Hyperchylo-

    micronemia (familial)

    in LDL receptors Type IIa familialdyslipidemia - hypercholesterolemia

    Microlytic

    hypochromic

    anemia pathology

    Underproduction ofheme

    What is ed intype IV familial

    dyslipidemia

    (hypertri-

    glyceridemia)

    VLDL and TG is

    elevated in the blood.

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    BIOCHEMISTRY WORD ASSOCIATION

    Vitamin needed

    for heme synthesisB6

    Hepatic overload

    of VLDL

    Hypertriglycerid-emia

    (familial)

    Formed in the

    degradation ofVLDL. Delivers TGL

    and cholesterol to

    liver, where they

    are degraded to

    LDL

    IDL

    Rate determining

    enzyme for PPP

    Shunt

    Glucose-6-phosphate

    dehydrogenase

    What is ed intype I familial

    dyslipidemia(hyperchylo-

    micronemia)

    Chylomicrons with TG

    and cholesterol ed inthe blood

    Musty body odor

    in PKU due to

    Aromatic amino acid

    metabolism disorder

    Form of Hb afO2

    R (relaxed)

    BIOCHEMISTRY - GENETICS

    Marfans syndrome AD

    Location of CFTR

    gene

    Ch 7

    Presence of both

    normal and mutated

    mtDNA variableexpression in

    mitochondrial

    inherited diseases

    Heteroplasmy

    Trisomy __ for Down

    Syndrome21

    X-linked recessive

    disorders

    Be Wise Fools

    GOLD Heeds False

    Hope

    Trinucleotide repeat

    expansion diseases

    Huntingtons

    disease, myotonic

    dystrophy,

    Friedreichs ataxia,

    fragile X.

    Occurs when cells in

    body have different

    genetic makeup

    Mosaicism

    Familial Hyper-

    cholesterolemiaAD

    Trisomy __ for

    Pataus syndrome13 (Puberty)

    MR, obesity,

    hypogonadism,hyptonia

    Pader-Willi

    syndrome (paternalactive deletion)

    Polydactyly Pataus syndrome

    Bilateral absence of

    vas deferns in malesCystic fibrosis

    Fragile X X-linked recessive

    Differences in

    phenotype depend

    on whether mutation

    is from mom or dad

    Imprinting

    suspectibility toother tumors

    Neurofibromatosis

    type 1

    -hCG Prenatal screeningfor DownSyndrome

    Neurofibromatosis

    type 2AD

    2nd most common

    cause of genetic

    mental retardation

    Fragile X

    Always bilateral due

    to a mutation in

    APKD1

    Adult Polycystic

    Kidney Disease

    Example of locus

    heterogeneityAlbinism

    Triple repeat

    disorder (CGG) may

    show genetic

    anticipation

    Fragile X

    G6PD Deficiency X-linked recessive

    Trisomy __ for

    Edwards syndrome18 (Election age)

    Example of

    anticipation

    Huntingtons

    disease

    95% meiotic

    nondisjunction

    Genetics of down

    syndrome

    Brutons

    agammaglobulinemiaX-linked recessive

    Autosomal recessive

    defect in CFTR geneCystic fibrosis

    Neurofibromatosis AD

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    type I

    Ocular albinism X-linked recessive

    Adult Polycystic

    kidney diseaseAD

    Clenched hands Edwards syndrome

    Wiskott-Aldrichsyndrome

    X-linked recessive

    Simian crease Down Syndrome

    Mutations at

    different loci can

    produce the same

    phenotype

    Locus

    heterogeneity

    -fetoprotein Prenatal screeningfor DownSyndrome

    Treatment of CF

    N-acetylcysteine to

    loosen mucousplugs

    Rocker bottom feet Edward and

    Pataus syndrome

    MR, seizures, ataxia,

    inappropriate

    laughter, HAPPY

    PUPPET

    Angelmans

    Syndrome

    (maternal active

    deletion)

    Disease risks for

    Down Syndrome

    ALL, Alzheimers >

    35Random X

    inactivation in

    females

    Lyonization

    Location of NF2 gene Ch. 22

    Most common cause

    of genetic

    retardation

    Down Syndrome

    Due to defective or

    absent LDL receptor

    Familial hyper-

    cholesterolemia

    Hardy-Weinberg

    equation

    p2

    + 2pq + q2

    = 1

    p + q = 1

    Long face with a

    large jawFragile X

    Gene location of

    Neurofibromatosis

    type 1 mutation

    Ch. 17

    Examples of

    imprinting

    Angelmans

    Syndrome mom

    Prader-Willi

    syndrome

    paternal

    Chromosomal

    inversion that

    involves thecentromere and

    proceeds through

    meiosis

    Pericentric

    Bilateral acoustic

    neuroma

    Neurofibromatosis

    type 2

    Space btn first 2 toes Down Syndrome

    Ash leaf spots on skin Tuberous sclerosis

    Fabrys Disease X-linked recessive

    Associated with

    polycystic liver, berry

    aneurysms, andmitral valve prolapse

    Adult Polycystic

    Kidney Disease

    Severity of disease

    worsens/age of

    onset is earlier in

    succeeding gener.

    Anticipation

    Fibrillin gene

    mutation CT dxs Marfans syndromeFrame-shift mutation

    deletion ofdystrophin gene

    Duchennes

    Muscular

    Dystrophy

    Location of APC genefor familial

    adenomatous

    polyposis

    Ch 5

    Septum primum-type

    ASD due to

    endocardial cushion

    defects

    Down Syndrome

    Example of

    incomplete

    penetrance

    Tuberous sclerosis

    nuchaltranslucency

    Prenatal screening

    for Down

    Syndrome

    Reason for

    pseudohypertrophy

    of calf muscles

    Fibrofatty

    replacement of

    muscle

    Hemophilia A and B X-linked recessive

    Chromosomal

    inversion that doesParacentric

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    not involve the

    centromere and does

    not proceed through

    meiosis

    Huntingtons disease AD

    Congenital defect inshort arm of ch 5

    Cri-du-chatsyndrome

    Large everted ears Fragile X

    Hemangioblastomas

    of retina/cerebellum

    / medulla

    von Hippel-Lindau

    disease

    Hunters Syndrome X-linked recessive

    DiGeroge Syndrome No thymus

    Pseudohypertrophy

    of calf muscles

    Duchennes

    Muscular

    Dystrophy

    Bilateral renal cellcarcinomas

    von Hippel-Lindaudisease

    Caf au lait spots,

    neural tumors, Lisch

    nodules

    Neurofibromatosis

    type 1

    Defect of fibroblast

    growth factor (FGF)

    receptor 3

    Achondroplasia

    Hereditary

    spherocytosisAD

    Adenoma sebaceum Tuberous sclerosis

    Weakness in pelvicgirdle muscle and

    progresses superiorly

    DuchennesMuscular

    Dystrophy

    PheochromocytomaNeurofibromatosis

    type 1

    Lesch-Nyham

    syndromeX-linked recessive

    Duchennes muscular

    dystrophyX-linked recessive

    APKDI gene location Ch. 16

    Familial

    AdenomatousPolyposis AD

    Location of VHL gene Ch. 3

    Deletion of VHL gene

    (tumor suppressor)

    von Hippel-Lindau

    disease

    Tuberous sclerosis AD

    X linked defect

    affecting methylationFragile X

    and expression of

    FMR1 gene

    Achondroplasia AD

    Mutated dystrophin

    gene

    Beckers Muscular

    Dystrophy

    DiGeorge Syndrome 22q11Gene location for

    Huntingtons diseaseCh 4

    Gowers maneuver

    Duchennes

    Muscular

    Dystrophy

    von Hippel-Lindau

    diseaseAD

    Macro-orchidism Fragile X

    Triplet repeat

    disorder that levelsof GABA and Ach in

    brain

    Huntingtons

    disease

    Diagnosis of

    Duchennes Muscular

    Dystrophy

    CPK and musclebiopsy