Shared Flashcard Set

Details

Metabolism
Drugs/disorders
43
Biochemistry
Graduate
09/23/2011

Additional Biochemistry Flashcards

 


 

Cards

Term
Rotenone
Definition
(pesticide) Inhibit Electron Transport. Inhibit NADH dehydrogenase in complex 1
Term
Piercidin A
Definition
Bacterial anti biotic )Inhibit Electron Transport. Inhibit NADH dehydrogenase in complex 1 (Rotenone and amytal(barbituate)
Term
amytal
Definition
Barbituate – Inhibit Electron Transport. Inhibit NADH dehydrogenase in complex 1 ( Like Rotenone and piercidin A)
Term
Antimycin A
Definition
Antibiotic-inhibits cytochrome B of cytochrome reductast(complex 3)
Term
Inhibits Cytochrome Oxidase
Definition
(Complex 4 inhibitor) Co, azide, hydrogen sulfide, cyanide
Term
Oligomycin
Definition
Streptomyces antibiotic: inhibits ATP synthase (Complex V)
Term
Atractyloside
Definition
Similar to oligomycin, inhibits ADP/ATP transport
Term
Bongkrekric acid
Definition
Similar to oligomycin, inhibits ADP/ATP transport
Term
Thermogenin
Definition
AKA Uncoupling protien UCP. Regulated uncoupler of oxidative phosporylation. (Deacrease ATP synthesis via creating “proton Leak” allowing H+ to re-enter the mitochondrial matrix without capturing energy. ) Used to Generate heat. Physiological function of brown adipose tissue. Aound neck and upper back in babies. Biological heat bap
Term
Dinitrophenol (DNP)
Definition
Uncoupler of Oxidative Phos.(Deacrease ATP synthesis via creating “proton Leak” allowing H+ to re-enter the mitochondrial matrix without capturing energy. )
Term
Aspirin(ASA)
Definition
Uncoupler of oxidative phosporylation (Deacrease ATP synthesis via creating “proton Leak” allowing H+ to re-enter the mitochondrial matrix without capturing energy. )
Term
Gramicidin
Definition
CHANNEL FORMING IONOPHORE . Uncoupler. Channel forming ioniphore. Makes a pore through mitochondrial inner membrane. Allows for dissipation of H+ gradient
Term
Valinomycin
Definition
MOBILE CARRIER IONOPHORE K+ Uncoupler. Antibiotic from streptomyces strains. Move back and forth through the membrane. Typicalled associated with carrying K+ across bilayer.
Term
Von Geirkes
Definition
Type 1 GSD: Enzyme: (1a) Glucose 6-phosphatase in ER Membrane (1b) Deficiency in glucose 6 phosphate translocase. BOTH glycogen degredation and gluconeogenesis impaired(Both end in glucose 6 phosphate-->Need to be converted) SEVERE HYPOGLYCEMIA DURING FASTING. Hepatomegaly, Lactic adidemia(buildup of lactate because not being used for gluconeogenisis.)Untreated: Progressive live and kidney disease TREATMENT: regularadministration of uncooked corn starch or nocturnal gastric glucose infusions.
Term
Pompe Disease
Definition
Type 2 GSD: Deficiency in lysosomal acid a-1-4 glucosidase. Lysosomal glycogen accumilation in the heart muscle and liver. (muscular and lysosomal storage disease) WEAKNESS, progressive neuromuscular disorder, variation of symptoms. Normal blood glucose levels. INFANT MOST SERVER: CARDIO MEGALY, myopathy, Hepatomegaly.--> Earyl death in first year. TREATMENT: Enzyme replacement infusion. ?able
Term
Cori Disease:
Definition
Type 3 GSD: Debranching enzyme deficiency:(Forbes/limit dextrinosis)- Mild Hypoglycemia and hepatomegaly. Short outer branches of glycogen. Muscle weaknes, hypotonia and cardiomyopathy. Wheelchair bound by 50-60 years old. Muscular dystrophy
Term
Anderson Disease
Definition
Typer 4  GSD:Branching enzyme definciency. Abnormal glycogen-> scarring by the attack of the body's immune system, INFANTILE CIRROSIS, death by age 6
Term
McArdle Disease
Definition
(Type V GSD): Def. Myophosphorylase. Cant break down musc. Glycogen. Temporary weakness/cramping after exercise. Lethargic child. Rhabdo after forced exercise(no ATP) High Serum MM, NO RAISE LACTATE after strenous exercise. Myoglobiniema/Myoglobinuria
Term
Hers Disease
Definition
VI GSD: Def of Hepatophosphorylase: Hepatomegaly and growth retardation. Mild hypoglycemia and hyperketonemia. Less sever than Von Gierk cause gluconeogenesis still running.
Term
Tarui Disease
Definition
Very Rare: Defin in PFK 1(M type) in muscle and RBC (Muscle has L type so 50 % can preform glycolysis. Muscle cramping due to lack of ATP. No raise in Lactate. Hemolysis b/c 50 % PFK1 deficiency in RBC.
Term
Pyruvate Dehydrogenase deficiency
Definition
Increased pyruvate==>Lactic acide and alanine. Decreased Acetyl CoA and severe redecuction in ATP. Clincally: Lactic acidosis, neurological defects, myopathy, usually fatal at early age.
Term
Arsenic Poisining
Definition
Pyruvate Dehydrogenase Deficiency: Binds to lopic acid which is needed by dyhydrolipoyl transacetylase. Results in lactic acid, neurological defects, brain particuallary, can lead to death.(can also effect Ketoglutarate DH.
Term
Fluraoacetate
Definition
Pesticide. Inhibits Aconitase. Malfunction in TCA
Term
Malonate
Definition
Inhibits Succinate Dehydrogenase. Malfunction in TCA
Term
Vitamin Deficienies
Definition
Defieciencies in B vitamins (niacin,riboflavin,thiamine) inhibit TCA
Term
Lebers Hereditary Optic Neuropathy
Definition
Defect in NADH Dehydrogenase(ETC)
Term
MELAS Syndrome
Definition
(M.M.E.L.A.S. Mitochodrial myopathy Hereditary Mitochondrial Disease: Mitochondrial Miopathy, Encephalopathy. Lactic acidosis, Stroke Like Episods. May present only as diabetes mellitus
Term
MERRF
Definition
Hereditary Mitochondrial disease. M.E.R.F.F. Myoclonic epilepsy, ragged red fibers, ataxia, sensorinueral deafness
Term
Kearns-Sayre
Definition
Hereditary mitochondrial disease. Early onset eye problems. Retinal pigmentation. Bad motor movements in eyes Early onset with heart block, retinal
Term
ALS
Definition
Amyotrophic Lateral Schlerosis/ Lou Gehrigs- Deficiency of superoxide dismutase. Lack of defense against superoxide. Degenerative disease for both upper and lower motor nuerons. Muscle weakness, atrophy, dysphagia, dysarthria(motor Speech disorder), hyperreflexia. Leads to DEATH
Term
Haber Wiess Reaction
Definition
Forms Oh- radicals. H202 + 02- +H+ = Oh-, h20, 02....Hydrogen peroxied + superoxide = hydroxyl radical, water and oxygen
Term
Fenton RX
Definition
OH- Radicals from Hydrogen peroxide (H202) plus Ferous ion Fe+2 (ferrous for fenton)
Term
Chronic Granulomas Disease
Definition
(Aka Bridges-good syndrome) Deficient NADPH oxidase. Lack of superoxide formation in leukocytes. Severe reccurent infections. (Fungi or bacterial)
Term
Myeloperoxidase (MPO) Deficiency
Definition
Genetic Disorder. Myelo-peroxidase deficiency. Cannot convert H202 to Hypoclorous acid in phagolysosomes. Presents with reccurent infections. (Fungal-candida albicans) Oral, genital, and systemic funga infections.
Term
(Histo)Whipples Disease
Definition
Malabsorption disease. Systemic Infectious disease. From Bacterium(troph whipple)
Term
(histo)Traveler's diarrhea
Definition
Malabsorption syndrome. Bacterial infection
Term
(histo)Tropical Sprue
Definition
Malabsorbtion disease. Abnormal flatteing of villi and inflamaiton of small intestine lining
Term
(Histo)Tay-sachs-
Definition
Lysosomal storage disease. Genetic Defect in lysosomal hydrolase.Cant break down gangliodes
Term
Zellweger Syndrome (Histo)
Definition
Peroxisome deficiency: Causes abnormalities in mylenation of nerve cells. (B/c Perozisomes(Micro bodies) are important in fat metabolism.
Term
Theophylline and Caffein
Definition
Inhibit Phosphodiesterase. Therefore keeping cAMP active after Adenlycyclase activation of it.
Term
Cholera Toxin/ E. Choli
Definition
Ribosylates ADP Gs ..Inactivates GTPase therefor leaving it active and cAMP and adenylate Cylases Active.Protein Kinase A. Can lead to exended opening of CFTR channel because of hyper phosphorylation
Term
Pertussis Toxin
Definition
Ribosylates Gi : Keeps inhibition active.
Term
Wernicke Korsakoffs
Definition
Thiamine deficiency (B1)leads to interuption of Pyruvate Dehydrogenase. Can manifest with Ataxia, Opthalmolplasia(rapid eye movements) memory loss, cerebral hemorage. Usually due to Alholics(blocks thiamine absorption) or malnurished peopel. Eventually lack of ATP leads to server cardiac problems and increased cardiac output-> Wet Beri Beri

A-ketoglutamarate also needs vit B
Supporting users have an ad free experience!