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34 Cards in this Set
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Inosine
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drug that preserves the quality of blood being kept in storage (blood loses its O2 carrying capacity from being stored in a blood bank -> (nucleoside containing adenine and ribose); increases blood quality
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Nitric oxide
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When blood loses its O2 carrying capacity from being stored in a blood bank -> increases blood quality
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insulin
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*during hyperglycemia it is a hormone that causes cells in the liver, muscle, and fat tissue to take up glucose from the blood, storing it as glycogen in the liver and muscle
*helps decrease blood glucose levels *inhibits release of glucagon |
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Quinolones
Ex: ciprofloaxacin |
DNA gyrase inhibitors are useful antibiotics; traps a ternary drug-topoisomerase-DNA complex, cellular processes convert into an irreversible letha DNA lesion ->apoptosis
Prevents religating of DNA so you have a permanent double strand break *CANT TREAT ANTHRAX but can treat symptoms, deep infections UTI, prostatis, gastroenteritis, nosocomial infections, STI’s |
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Etoposide & ciprofloxacin
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Inhibits DNA re-ligation after strand translocation which also hinders replication
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fluoroquinolone
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Inhibits DNA gyrase, stopping strand unwinding and hindering replication
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epipodophyllotoxins
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Poison eukaryotic topo II
Drugs that interfere with eukaryotic topoisonmerases to prevent dna replication and act as anti-cancer agents Cancer treatment, leukemia, lung,, testis, ovary |
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Camptothecin,
topotecan |
-Poison eukaryotic topo I
fluoroquinolone Drugs that interfere with eukaryotic topoisonmerases to prevent dna replication and act as anti-cancer agents -Topotecan is active as a single agent in Ovarian cancer, small-cell and non-small cell lung cancer, acute myelocytic leukemia, myelodysplastic syndromes |
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actinomycins
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Prevents replication by preventing formation of regions of ssDNA, inhibits the action of topoisomerase II thereby preventing the removal of supercoils, inhibiting RNA transcription – cell replication requires the synthesis of specific RNA’s and protein at definite times in the cell cycle
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Actinomycin D
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Chemotherapy drug
Used for wilm tumor, rhabdomyosarcoma, Kaposi sarcoma, gestational trophoblastic tumors, testicular cancer |
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Tetracyclines:
Tetracycline, oxytetracyclin, doxycyclin, demeclocycline, lymecycline & minocycline |
Family of broad spectrum of antibiotics;
Inhibits translation Interacts with 30s and 40s small ribosomal subunits blocking access and therefore binding the amino-acyl tRNA to the A site Effectiveness lies in that they are selectively concentrated by bacteria and NOT by mammalian cells |
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puromycin
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Analogue of aminoacyl-tRNA, once incorporated into the growing peptide chain, it causes premature chain termination and elongation
Active in both eukaryotes and prokaryotes |
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chloramphenicol
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Binds to 50s ribosomes and inhibits peptidyl transferase activity, prevents bond formation, and thus prevents elongation
This drug can be inactivated by chloamphenicol acetyltransferase produced by resistant strains |
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erythromycin
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Inhibits translocation/elongation; binds irreversibly to 50s ribosome, blocks translocation by EF-G preventing elongation
Not effective against gram-negative bacteria; resistance can occur through plasmid controlled alteration of binding site for erythromycin on the ribosome; good for brain abcyss, gets deep into tissues |
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Streptomycin & aminoglycosides
Includes: Gentamicin, Amikacin, Tobramycin, Netilmicin, neomycin |
Binds to 30s subunit, distorting its structure, prevents binding of fmet-tRNA to the p-site of ribosomes, inhibits initiation – changes A to G in point mutation (polymorphism), higher affinity of aminoglycosides for the host mitochondrial ribosome, protein production in mitochondria is inhibited
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Streptomycin and other aminoglycosides
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Prevents binding of fmet-tRNA to the p site of ribosomes, causes midreading of mRNA
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tetracyclines
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Prevents aminoacyl-tRNAs beinding in the A site
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chloramphenicol
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Interferes with peptidyl transferase activity of the 50s ribosome, preventing peptide bond formation
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erythromycin
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Blocks translocation by binding to the 50s subunit of prokaryotes
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puromycin
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An analogue of aminoacyl-tRNA that causes premature chain termination
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puromycin
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An analogue of aminoacyl-tRNA that causes premature chain termination
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disulfiram
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Aversion therapy for alcoholism; how it works: acetaldehyde accumulates in tissues causing vomiting, hopefully leading to alcohol avoidance
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aspirin
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Inhibits cyclooxygenase (COX) enzymes irreversibly by acetylating the Ser530 OH group, which prevents arachiodonic acid from reaching the active site
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statin
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HMG CoA reductase inhibitors, lower cholesterol levels by stopping producting in the liver
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Azidothymidine (AZT)
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Nucleotide analogue of thymine, used in AIDS treatment; it inhibits viral reverse transcriptases but does NOT interact with human DNA polymerases
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Captopril
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Competitive inhibitor of the angiotensin converting enzyme (ACE) which is responsible for converting angiotensin I to angiotensin II; reduces hypertension (high blood pressure)
2) |
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allopurinol
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Treats hyperuricemia (excess uric acid in blood) - cancer, gout, irreversible suicide inhibitor
2) |
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Ziduvudine
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Utilized by viral reverse transcriptase, upon incorporation into d.s. DNA chain termination occurs due to lack of 3’OH
Doesn’t kill infection but prevents/decreases progression Anti-viral Nucleoside analogues: Viral reverse transcriptase inhibitors 2) Prolongs life of HIV infected individuals, diminishes HIV associated dementia, reduce mother to baby transmission by more than 20% |
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Systemic Lupus Erythematosis
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Autoimmune disease with multiple symptoms including extreme fatigue, arthritis, fever, skin rashes and kidney problems
2) Sufferers possess auto-antibodies that cross react with the U1 RNA component of the spliceosome |
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Beta-Thalassemia
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Reduced synthesis of beta-hemoglobin chain that results in microcytic hypochromic anemia
2) Many of these mutations generate additional splice sites within the mRNA, as a result, frame shifts or premature stop codons are introduced into the mature mRNA, this results in production of an abnormal beta-globin protein |
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Limb girdle muscular dystrophy (LGMD)
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Weakness and wasting restricted to the limb musculature
2) Patients possess a mutation in the caplain 3 gene that generates a new splice site within the exon 16 (coding sequence); this results in a shorter caplain 3 mRNA, missing exon 16 codons, produces a defective protein |
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Chagas disease
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Trypanosome infection
2) |
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leishmaniasis
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) leishmania
2) |
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Cellular necrosis
1) Disorder/how drug treats it? 2) Symptoms of disorder/application? |
1) Release of cellular contents into the extracellular fluid
2) |