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Dactinomycin
|
A compound composed of a two cyclic peptides attached to a phenoxazine that is derived from streptomyces parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. (From AMA Drug Evaluations Annual, 1993, p2015) Pharmacology: Generally, the actinomycins exert an inhibitory effect on gram-positive and gram-negative bacteria and on some fungi. However, the toxic properties of the actinomycins (including dactinomycin) in relation to antibacterial activity are such as to preclude their use as antibiotics in the treatment of infectious diseases. Because the actinomycins are cytotoxic, they have an antineoplastic effect which has been demonstrated in experimental animals with various types of tumor implant. This cytotoxic action is the basis for their use in the treatment of certain types of cancer. Dactinomycin is believed to produce its cytotoxic effects by binding DNA and inhibiting RNA synthesis. Mechanism of action: Good evidence exists that this drug bind strongly, but reversibly, to DNA, interfering with synthesis of RNA and, consequently, with protein synthesis. Drug type: Approved. Small Molecule. Drug category: Anti-Bacterial Agents. Antibiotics. Antibiotics, Antineoplastic. Antineoplastic Agents. Nucleic Acid Synthesis Inhibitors. Protein Synthesis Inhibitors
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ILX:0102781
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Damage
|
|
ILX:0102782
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Damaged
|
|
ILX:0102783
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Danazol
|
A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of endometriosis and some benign breast disorders. (PubChem) Pharmacology: Danazol is a derivative of the synthetic steroid ethisterone, a modified testosterone. It was approved by the U.S. Food and Drug Administration (FDA) as the first drug to specifically treat endometriosis, but its role as a treatment for endometriosis has been largely replaced by the gonadotropin-releasing hormone (GnRH) agonists. Danazol has antigonadotropic and anti-estrogenic activities. Danazol acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Mechanism of action: As a gonadotropin inhibitor, danazol suppresses the pituitary-ovarian axis possibly by inhibiting the output of pituitary gonadotropins. Danazol also depresses the preovulatory surge in output of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) and therefore reduces ovarian estrogen production. Danazol also may directly inhibit ovarian steroidogenesis, bind to androgen, progesterone, and glucocorticoid receptors, bind to sex-hormone-binding globulin and corticosteroid-binding globulin, and increase the metabolic clearance rate of progesterone. Endometriosis - As a consequence of suppression of ovarian function, both normal and ectopic endometrial tissues become inactive and atrophic. As a result, anovulation and associated amenorrhea occur. Fibrocystic breast disease - The exact mechanism of action is unknown, but may be related to suppressed estrogenic stimulation as a result of decreased ovarian production of estrogen. A direct effect on steroid receptor sites in breast tissue also is possible. Disappearance of nodularity, relief of pain and tenderness, and possibly changes in the menstrual pattern result. Hereditary angioedema - Danazol corrects the underlying biochemical deficiency by increasing serum concentrations of the deficient C1 esterase inhibitor, resulting in increased serum concentrations of the C4 component of the complement system. (Source: PharmGKB) Drug type: Approved. Small Molecule. Drug category: Estrogen Antagonists
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ILX:0102784
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Danio
|
|
ILX:0102785
|
5
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dantrolene
|
Chemically, dantrolene is a hydantoin derivative, but does not exhibit antiepileptic activity like other hydantoin derivates such as phenytoin. Pharmacology: Dantrolene is classified as a direct-acting skeletal muscle relaxant. It is currently the only specific and effective treatment for malignant hyperthermia. In isolated nerve-muscle preparation, Dantrium has been shown to produce relaxation by affecting the contractile response of the muscle at a site beyond the myoneural junction. In skeletal muscle, Dantrium dissociates excitation-contraction coupling, probably by interfering with the release of Ca2+ from the sarcoplasmic reticulum. In the anesthetic-induced malignant hyperthermia syndrome, evidence points to an intrinsic abnormality of skeletal muscle tissue. In selected humans, it has been postulated that triggering agents (e.g.,general anesthetics and depolarizing neuromuscular blocking agents) produce a change within the cell which results in an elevated myoplasmic calcium. This elevated myoplasmic calcium activates acute cellular catabolic processes that cascade to the malignant hyperthermia crisis. It is hypothesized that addition of Dantrium to the triggered malignant hyperthermic muscle cell reestablishes a normal level of ionized calcium in the myoplasm. Mechanism of action: Dantrolene depresses excitation-contraction coupling in skeletal muscle by binding to the ryanodine receptor 1, and decreasing intracellular calcium concentration. Ryanodine receptors mediate the release of calcium from the sarcoplasmic reticulum, an essential step in muscle contraction. Drug type: Approved. Small Molecule. Drug category: Muscle Relaxants, Central
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ILX:0102786
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3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dapiprazole
|
Dapiprazole (U.S. trade name Rev-Eyes) is an alpha blocker. It is used to reverse mydriasis after eye examination. (Wikipedia) Pharmacology: Dapiprazole is an alpha-adrenergic blocking agent. It produces miosis by blocking the alpha-adrenergic receptors on the dilator muscle of the iris. Dapiprazole produces no significant action on ciliary muscle contraction and thus, there are no changes in the depth of the anterior chamber of the thickness of the lens. It does not alter the IOP either in normal eyes or in eyes with elevated IOP. The rate of pupillary constriction may be slightly slower in clients with brown irises than in clients with blue or green irises. Mechanism of action: Dapiprazole acts through blocking the alpha1-adrenergic receptors in smooth muscle. It produces miosis through an effect on the dilator muscle of the iris and does not have any significant activity on ciliary muscle contraction and, therefore does not induce a significant change in the anterior chamber depth or the thickness of the lens. Drug type: Approved. Small Molecule. Drug category: Adrenergic alpha-Antagonists. Antimydriatics. Antipsychotic Agents. Ophthalmologicals
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ILX:0102787
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dappled
|
A color pattern inhering to a bearer by virtue of being marked with small spots, patches, or specks of hue or degree of saturation differing from that of the background.
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ILX:0102788
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3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dapsone
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A sulfone active against a wide range of bacteria but mainly employed for its actions against mycobacterium leprae. Its mechanism of action is probably similar to that of the sulfonamides which involves inhibition of folic acid synthesis in susceptible organisms. It is also used with pyrimethamine in the treatment of malaria. (From Martindale, The Extra Pharmacopoeia, 30th ed, p157-8) Pharmacology: Dapsone is a sulfone with anti-inflammatory immunosuppressive properties as well as antibacterial and antibiotic properties. Dapsone is the principal drug in a multidrug regimen recommended by the World Health Organization for the treatment of leprosy. As an anti-infective agent, it is also used for treating malaria and, recently, for Pneumocystic carinii pneumonia in AIDS patients. Dapsone is absorbed rapidly and nearly completely from the gastrointestinal tract. Dapsone is distributed throughout total body water and is present in all tissues. However, it tends to be retained in skin and muscle and especially in the liver and kidney: traces of the drug are present in these organs up to 3 weeks after therapy cessation. Mechanism of action: Dapsone acts against bacteria and protozoa in the same way as sulphonamides, that is by inhibiting the synthesis of dihydrofolic acid through competition with para-amino-benzoate for the active site of dihydropteroate synthetase. The anti-inflammatory action of the drug is unrelated to its antibacterial action and is still not fully understood. Drug type: Approved. Investigational. Small Molecule. Drug category: Anti-Infective Agents. Anti-Infectives. Anti-inflammatory Agents. Antimalarials. Antimycobacterials. Folic Acid Antagonists. Leprostatic Agents
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ILX:0102789
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3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Daptomycin
|
Daptomycin is a lipopeptide antibiotic that kills susceptible gram positive bacteria by disrupting their membrane potential. It is a naturally-occurring compound found in the soil bacterium Streptomyces roseosporus. Antibiotics are used in the treatment of infections caused by bacteria. They work by killing bacteria or preventing their growth. Daptomycin will not work for colds, flu, or other virus infections. It was approved in September 2003 for the treatment of complicated skin and soft tissue infections. It has a safety profile similar to other agents commonly administered to treat gram-positive infections. Pharmacology: Daptomycin is a lipopeptide antibiotic active against Gram-positive bacteria only. It has proven in vitro activity against enterococci (including glycopeptide-resistant Enterococci (GRE)), staphylococci (including methicillin-resistant Staphylococcus aureus), streptococci and corynebacteria. Mechanism of action: Daptomycin appears to bind or insert into the outer membrane of gram positive bacteria. This binding casues rapid depolarisation, resulting in a loss of membrane potential leading to inhibition of protein, DNA and RNA synthesis, which results in bacterial cell death. The bactericidal activity of daptomycin is concentration-dependent. There is in vitro evidence of synergy with -lactam antibiotics. Drug type: Approved. Biotech. Investigational. Drug category: Anti-Bacterial Agents
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ILX:0102790
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3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Darbepoetin alfa
|
Human erythropoietin with 2 aa substitutions to enhance glycosylation (5 N-linked chains), 165 residues (MW
|
ILX:0102791
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3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Darifenacin
|
Darifenacin (Enablex, Novartis) is a medication used to treat urinary incontinence.Darifenacin works by blocking the M3 muscarinic acetylcholine receptor, which is primarily responsible for bladder muscle contractions. It thereby decreases the urgency to urinate. It should not be used in people with urinary retention.It is not known whether this selectivity for the M3 receptor translates into any clinical advantage when treating symptoms of overactive bladder syndrome. Pharmacology: Darifenacin is a competitive muscarinic receptor antagonist. In vitro studies using human recombinant muscarinic receptor subtypes show that darifenacin has greater affinity for the M3 receptor than for the other known muscarinic receptors (9 and 12-fold greater affinity for M3 compared to M1 and M5, respectively, and 59-fold greater affinity for M3 compared to both M2 and M4). Muscarinic receptors play an important role in several major cholinergically mediated functions, including contractions of the urinary bladder smooth muscle and stimulation of salivary secretion. Adverse drug effects such as dry mouth, constipation and abnormal vision may be mediated through effects on M3 receptors in these organs. Mechanism of action: Darifenacin selectively antagonizes the muscarinic M3 receptor. M3 receptors are involved in contraction of human bladder and gastrointestinal smooth muscle, saliva production, and iris sphincter function. Drug type: Approved. Investigational. Small Molecule. Drug category: Muscarinic Antagonists. Urinary antispasmodics
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ILX:0102792
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark blue
|
A color consisting of blue hue and low brightness.
|
ILX:0102793
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark brown
|
|
ILX:0102794
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark cyan
|
A color consisting of cyan hue and low brightness.
|
ILX:0102795
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark green
|
A color consisting of green hue and low brightness.
|
ILX:0102796
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark grey
|
A color consisting of grey hue and low brightness.
|
ILX:0102797
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark magenta
|
A color consisting of magenta with low brightness.
|
ILX:0102798
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark Material
|
Irregularly shaped clumps of denatured or misfolded proteins observed in some neurons after a period of ischemia that stain heavily with osmium in electon microscopic preparations.
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ILX:0102799
|
4
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |
|
Dark orange
|
A color consisting of orange color and low brightness.
|
ILX:0102800
|
3
|
FDI Lab - SciCrunch.org
|
06/18/2018
|
FDI Lab - SciCrunch.org |
term |
12/08/2016 |
0 |
NeuroLex |
NeuroLex |