Glutathione is a constituent of (A) Leukotriene A4 (B) Thromboxane A1 (C) Leukotriene C4 (D) None of these

Glutathione is a constituent of (A) Leukotriene A4 (B) Thromboxane A1 (C) Leukotriene C4 (D) None of these
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Which of the following eicosanoids is generated through the lipozygenase pathway ? (a) Prostaglandin E2 (b) Thromboxane A2 (c) Prostacyclin (d) Leukotriene C4

Description : Which of the following eicosanoids is generated through the lipozygenase pathway ? (a) Prostaglandin E2 (b) Thromboxane A2 (c) Prostacyclin (d) Leukotriene C4

Last Answer : Ans: D

True statements regarding eicosanoids include which of the following? A. Prostaglandins and thromboxanes are synthesized via the cyclo-oxygenase pathway. B. The vasoconstricting, platelet-aggregating, and bronchoconstricting effects of thromboxane A 2 are balanced by the actions of prostacyclin, which produces the opposite effects. C. Leukotriene synthesis is inhibited by the action of nonsteroidal anti-inflammatory drugs (NSAIDs). D. The principal prostaglandins have a short circulation half-life and exert most of their effects locally.

Description : True statements regarding eicosanoids include which of the following? A. Prostaglandins and thromboxanes are synthesized via the cyclo-oxygenase pathway. B. The vasoconstricting, platelet-aggregating, ... prostaglandins have a short circulation half-life and exert most of their effects locally.

Last Answer : Answer: ABD DISCUSSION: The eicosanoids are a group of compounds arising from the metabolism of arachidonic acid. The prostaglandins and thromboxanes are synthesized via the cyclo-oxygenase ... effects and may be involved in the physiologic responses associated with anaphylactic and septic shock

A 60-year-old woman has glaucoma following cataract surgery. Which of the following can be used to reduce intraocular pressure? (a) Leukotriene LTD4 or its analogs (b) Prostaglandin E2 or its analogs (c) Prostaglandin F2a or its analogs (d) Slow-reacting substance of anaplylaxis (SRS-A) (e) Thromboxane A2 or its analogs

Description : A 60-year-old woman has glaucoma following cataract surgery. Which of the following can be used to reduce intraocular pressure? (a) Leukotriene LTD4 or its analogs (b) Prostaglandin E2 or its analogs ( ... analogs (d) Slow-reacting substance of anaplylaxis (SRS-A) (e) Thromboxane A2 or its analogs

Last Answer : Ans: C

From the following figure, determine the resultant of four forces A1, A2, A3, A4.

Description : From the following figure, determine the resultant of four forces A1, A2, A3, A4.

Last Answer : From the following figure, determine the resultant of four forces \(\overset\rightarrow{A}_1\), \(\overset\ ... A}_3\), \(\overset\rightarrow{A}_4\).

Montelukast blocks the action of the following autacoid: A. Prostacyclin B. Platelet activating factor C. Leukotriene B4 D. Leukotriene C4/D4

Description : Montelukast blocks the action of the following autacoid: A. Prostacyclin B. Platelet activating factor C. Leukotriene B4 D. Leukotriene C4/D4

Last Answer : D. Leukotriene C4/D4

Selenium is a constituent of (A) Glutathione reductase (B) Glutathione peroxidase (C) Catalase (D) Superoxide dismutase

Description : Selenium is a constituent of (A) Glutathione reductase (B) Glutathione peroxidase (C) Catalase (D) Superoxide dismutase

Last Answer : Answer : B

Selenium is a constituent of the enzyme: (A) Glutathione peroxidase (B) Homogentisate oxidase (C) Tyrosine hydroxylase (D) Phenylalanin hydroxylase

Description : Selenium is a constituent of the enzyme: (A) Glutathione peroxidase (B) Homogentisate oxidase (C) Tyrosine hydroxylase (D) Phenylalanin hydroxylase

Last Answer : Answer : A

Hormonal stimulation of the formation of the second messenger inositol 1,4,5 triphosphate (IP3) quickly leads to the release of which other intracellular messenger? (A) cAMP (B) Prostaglandin (C) Calcinon (D) Leukotriene

Description : Hormonal stimulation of the formation of the second messenger inositol 1,4,5 triphosphate (IP3) quickly leads to the release of which other intracellular messenger? (A) cAMP (B) Prostaglandin (C) Calcinon (D) Leukotriene

Last Answer : Answer : C

Leukotrienes: 1) Are formed from the cyclooxygenase pathway 2) Are synthesized by fibroblasts 3) Decrease vascular permeability 4) Leukotriene D4 has been identified as SRS-A which causes bronchial wall smooth muscle relaxation 5) Stimulate mucus secretion

Description : Leukotrienes: 1) Are formed from the cyclooxygenase pathway 2) Are synthesized by fibroblasts 3) Decrease vascular permeability 4) Leukotriene D4 has been identified as SRS-A which causes bronchial wall smooth muscle relaxation 5) Stimulate mucus secretion

Last Answer : Answers-5 Leukotrienes are synthesized by leucocytes.They are mediators of allergic reaction. They increase vascular permeability and attract neutrophils and eosinophils to inflammatory sites. ... stimulate mucus production, an important consideration in the pathophysiology of bronchial asthma.

From arachidonate, synthesis of prostaglandins is catalysed by (A) Cyclooxygenase (B) Lipoxygenase (C) Thromboxane synthase (D) Isomerase

Description : From arachidonate, synthesis of prostaglandins is catalysed by (A) Cyclooxygenase (B) Lipoxygenase (C) Thromboxane synthase (D) Isomerase

Last Answer : Answer : A

What is the effect of thromboxane?

Description : What is the effect of thromboxane? 

Last Answer : Thromboxane (TXA2) is the main PG produced by platelets. The major effects are vasoconstriction and platelet aggregation. Prostacyclin and thromboxane are opposing in activity.

Iodine is required in human body for (A) Formation of thyroxine (B) Formation of Glutathione (C) Formation of potassium iodide (D) Adrenalin

Description : Iodine is required in human body for (A) Formation of thyroxine (B) Formation of Glutathione (C) Formation of potassium iodide (D) Adrenalin

Last Answer : Answer : A

Methemoglobin can be reduced to haemoglobin by (A) Removal of hydrogen (B) Vitamin C (C) Glutathione (D) Creatinine

Description : Methemoglobin can be reduced to haemoglobin by (A) Removal of hydrogen (B) Vitamin C (C) Glutathione (D) Creatinine

Last Answer : Answer : B

Removal of BSP dye by the liver involves conjugation with (A) Thiosulphate (B) Glutamine (C) Cystein component of glutathione (D) UDP glucuronate

Description : Removal of BSP dye by the liver involves conjugation with (A) Thiosulphate (B) Glutamine (C) Cystein component of glutathione (D) UDP glucuronate

Last Answer : Answer : C

Glutathione is a (A) Dipeptide (B) Tripeptide (C) Polypeptide (D) None of these

Description : Glutathione is a (A) Dipeptide (B) Tripeptide (C) Polypeptide (D) None of these

Last Answer : Answer : B

In glutathione (a tripeptide) is present apart from Glutamic acid and cysteine: (A) Serine (B) Glycine (C) Leucine (D) Phenyl alanine

Description : In glutathione (a tripeptide) is present apart from Glutamic acid and cysteine: (A) Serine (B) Glycine (C) Leucine (D) Phenyl alanine

Last Answer : Answer : B

Sulphur-containing amino acid is (A) Glutathione (B) Chondroitin sulphate (C) Homocysteine (D) Tryptophan

Description : Sulphur-containing amino acid is (A) Glutathione (B) Chondroitin sulphate (C) Homocysteine (D) Tryptophan

Last Answer : Answer : C

A tripeptide functioning as an important reducing agent in the tissues is (A) Bradykinin (B) Kallidin (C) Tyrocidin (D) Glutathione

Description : A tripeptide functioning as an important reducing agent in the tissues is (A) Bradykinin (B) Kallidin (C) Tyrocidin (D) Glutathione

Last Answer : Answer : D

A peptide which acts as potent smooth muscle hypotensive agent is (A) Glutathione (B) Bradykinin (C) Tryocidine (D) Gramicidin-s

Description : A peptide which acts as potent smooth muscle hypotensive agent is (A) Glutathione (B) Bradykinin (C) Tryocidine (D) Gramicidin-s

Last Answer : Answer : B

Which of the following is a tripeptide? (A) Anserine (B) Oxytocin (C) Glutathione (D) Kallidin

Description : Which of the following is a tripeptide? (A) Anserine (B) Oxytocin (C) Glutathione (D) Kallidin

Last Answer : Answer : C

Which of the following is a dipeptide? (A) Anserine (B) Glutathione (C) Glucagon (D) β -Lipoprotein

Description : Which of the following is a dipeptide? (A) Anserine (B) Glutathione (C) Glucagon (D) β -Lipoprotein

Last Answer : Answer : A

Reduced glutathione functions in R.B.Cs to (A) Produce NADPH (B) Reduce methemoglobin to hemoglobin (C) Produce NADH (D) Reduce oxidizing agents such as H2O2

Description : Reduced glutathione functions in R.B.Cs to (A) Produce NADPH (B) Reduce methemoglobin to hemoglobin (C) Produce NADH (D) Reduce oxidizing agents such as H2O2

Last Answer : D

Dehydrogenation of succinic acid to fumaric acid requires the following hydrogen carrier: (A) NAD+ (B) NADP+ (C) flavoprotein (D) Glutathione

Description : Dehydrogenation of succinic acid to fumaric acid requires the following hydrogen carrier: (A) NAD+ (B) NADP+ (C) flavoprotein (D) Glutathione

Last Answer : C

Glutathione is made up of which amino acids?

Description : Glutathione is made up of which amino acids?

Last Answer : Glutamic acid, cysteine and glycine.

Some hormones produce their intracellular effects by activating (A) Phospholipae A1 (B) Phospholipase B (C) Phospholipase C (D) All of these

Description : Some hormones produce their intracellular effects by activating (A) Phospholipae A1 (B) Phospholipase B (C) Phospholipase C (D) All of these

Last Answer : Answer : C

Zellweger’s syndrome is due to inherited absence of (A) Peroxisomes (B) Phospholipase A1 (C) Acyl-Co-A dehydrogenase (D) Thiolase

Description : Zellweger’s syndrome is due to inherited absence of (A) Peroxisomes (B) Phospholipase A1 (C) Acyl-Co-A dehydrogenase (D) Thiolase

Last Answer : Answer : A

The molecule of vitamin A1 contains (A) Benzene ring (B) β-Ionone ring (C) β-Carotene ring (D) None of these

Description : The molecule of vitamin A1 contains (A) Benzene ring (B) β-Ionone ring (C) β-Carotene ring (D) None of these

Last Answer : Answer : B

Lysolecithin is formed from lecithin by the action of (A) Phospholipase A1 (B) Phospholipase A2 (C) Phospholipase C (D) Phospholipase D

Description : Lysolecithin is formed from lecithin by the action of (A) Phospholipase A1 (B) Phospholipase A2 (C) Phospholipase C (D) Phospholipase D

Last Answer : Answer : B

Anti-inflammatory corticosteroids inhibit (A) Phospholipase A1 (B) Phospholipase A2 (C) Cyclo-oxygenase (D) Lipo-oxygenase

Description : Anti-inflammatory corticosteroids inhibit (A) Phospholipase A1 (B) Phospholipase A2 (C) Cyclo-oxygenase (D) Lipo-oxygenase

Last Answer : Answer : B

Phenylbutazone and indomethacin inhibit (A) Phospholipase A1 (B) Phospholipase A2 (C) Cyclo-oxygenase (D) Lipo-oxygenase

Description : Phenylbutazone and indomethacin inhibit (A) Phospholipase A1 (B) Phospholipase A2 (C) Cyclo-oxygenase (D) Lipo-oxygenase

Last Answer : Answer : C

A ’suicide enzyme’ is (A) Cycloxygenase (B) Lipooxygenase (C) Phospholipase A1 (D) Phospholipase A2

Description : A ’suicide enzyme’ is (A) Cycloxygenase (B) Lipooxygenase (C) Phospholipase A1 (D) Phospholipase A2

Last Answer : Answer : A

Aspirin inhibits the activity of the enzyme: (A) Lipoxygenase (B) Cyclooxygenase (C) Phospholipae A1 (D) Phospholipase A2

Description : Aspirin inhibits the activity of the enzyme: (A) Lipoxygenase (B) Cyclooxygenase (C) Phospholipae A1 (D) Phospholipase A2

Last Answer : Answer : B

Which of the following terms best describes the antagonism of leukotriene’s bronchoconstrictor effect (mediated at leukotriene receptors) by terbutaline (acting a adrenoceptors) in a patient with asthma? (a) Pharmacologic antagonist (b) Partial agonist (c) Physiologic antagonist (d) Chemical antagonist (e) Noncompetitive antagonist

Description : Which of the following terms best describes the antagonism of leukotriene's bronchoconstrictor effect (mediated at leukotriene receptors) by terbutaline (acting a adrenoceptors) in a patient with ... ) Partial agonist (c) Physiologic antagonist (d) Chemical antagonist (e) Noncompetitive antagonist

Last Answer : Ans: C

In addition to their ability to decrease inflammatory prostaglandin synthesis, some non-steroidal anti-inflammatory drugs (NSAIDs) may owe part of their effects to their ability to (a) Inhibit leukocyte migration (b) Inhibit leukotriene synthesis (c) Stabilize lysosmal membranes (d) All of the above (e) None of the above

Description : In addition to their ability to decrease inflammatory prostaglandin synthesis, some non-steroidal anti-inflammatory drugs (NSAIDs) may owe part of their effects to their ability to (a) Inhibit leukocyte migration (b ... (c) Stabilize lysosmal membranes (d) All of the above (e) None of the above

Last Answer : Ans: D

Leukotriene antagonists are used in bronchial asthma: A. For terminating acute attacks B. As monotherapy in place of β2 agonists C. As adjuvants to β2 agonists for avoiding corticosteroids D. As nebulized powder in refractory cases

Description : Leukotriene antagonists are used in bronchial asthma: A. For terminating acute attacks B. As monotherapy in place of β2 agonists C. As adjuvants to β2 agonists for avoiding corticosteroids D. As nebulized powder in refractory cases

Last Answer : C. As adjuvants to β2 agonists for avoiding corticosteroids

The following class(es) of drugs are clinically beneficial in bronchial asthma: A. Histamine H1 receptor antagonists B. Platelet activating factor (PAF) antagonists C. Leukotriene ( cys LT1) receptor antagonists D. All of the above

Description : The following class(es) of drugs are clinically beneficial in bronchial asthma: A. Histamine H1 receptor antagonists B. Platelet activating factor (PAF) antagonists C. Leukotriene ( cys LT1) receptor antagonists D. All of the above

Last Answer : C. Leukotriene ( cys LT1) receptor antagonists

The most prominent action of leukotriene B4 is: A. Vasodilatation B. Uterine contraction C. Platelet aggregation D. Chemotaxis of neutrophils and monocytes

Description : The most prominent action of leukotriene B4 is: A. Vasodilatation B. Uterine contraction C. Platelet aggregation D. Chemotaxis of neutrophils and monocytes

Last Answer : D. Chemotaxis of neutrophils and monocytes

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Description : How good is an audi A4?

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I want to lower my Quattro Audi A4. Anyone know much about the drive system?

Description : I want to lower my Quattro Audi A4. Anyone know much about the drive system?

Last Answer : My knowledge of Audi innards is glancing, but I do know there’s an Audi Club based out of Portland that should be able to get you in contact with good info and likely good shops. http://www.audiclubnw.org/

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Last Answer : Visit a car repair shop

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Description : What is the value of 4a - 2c when a4 and c3?

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Last Answer : e) All the above

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Description : The rate of ePost is a) Rs 5 per page A4 size b) Rs 6 per page A4 size c) Rs 10 per page A4 size d) Free

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The three outputs x1x2x3 from the 8x3 priority encoder are used to provide a vector address of the form 101x1x2x300. What is the second highest priority vector address in hexadecimal if the vector addresses are starting from the one with the highest priority? (A) BC (B) A4 (C) BD (D) AC

Description : The three outputs x1x2x3 from the 8x3 priority encoder are used to provide a vector address of the form 101x1x2x300. What is the second highest priority vector address in hexadecimal if the vector addresses are starting from the one with the highest priority? (A) BC (B) A4 (C) BD (D) AC

Last Answer : Answer: B