Urokinase Health Dictionary

Urokinase: From 2 Different Sources


Urokinase is an ENZYME obtained from URINE which dissolves blood clots. It is used to treat THROMBOLYSIS in the EYE, in arteriovenous shunts (see SHUNT) and deep-vein THROMBOSIS. It has the advantage over other ?brinolytic drugs of not causing immunological reactions.
Health Source: Medical Dictionary
Author: Health Dictionary
n. an enzyme produced in the kidney and also present in blood and urine that is capable of breaking up blood clots. It activates *plasminogen directly to plasmin, which dissolves blood clots (see plasminogen activators). Urokinase is administered to treat deep vein thrombosis and pulmonary embolism.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Crocus Sativus

Linn.

Family: Iridaceae.

Habitat: Cultivated in Kashmir up to 2,000 m and in Chaubattia in Uttar Pradesh.

English: Saffron, Crocus.

Ayurvedic: Kumkuma, Rudhira, Vadrika, Kaashmira, Kaashmiraka, Vaalhika, Agnishikhaa, Ghrusrrn, Rakta, Kshataja. Keshara (usually Keshara indicates Naagakeshara, Mesuaferrea Linn.)

Unani: Zaafraan.

Siddha/Tamil: Kumgumappoo (dried stigma).

Action: Stigma and style—nervine tonic, sedative, antispasmodic expectorant (in dry cough, whooping cough, bronchitis), stomachic, diaphoretic, emmenagogue.

The Ayurvedic Pharmacopoeia of India indicated the use of the stigma and style in migraine, chronic sinusitis, and in urinary obstruction, inflammation of the urinary tract.

The saffron is used in Chinese medicine for melancholia, depression, shock and menstrual disorders.

Saffron contains a volatile oil composed of terpenes, terpene alcohols and esters. The herb also contains crocin, picrocrocin, crocetin, carotenoids and riboflavin and thiamine.

Preliminary evidence suggests that crocetin may improved atherosclerosis by increasing plasma oxygen diffusion and decreasing cholesterol and triglyceride levels. In addition, cro- cetin binds to albumin, potentially increasing oxygen diffusion and improving atherosclerosis. (Natural Medicines Comprehensive Database, 2007.)

The stigma showed remarkable inhibitory effect on blood coagulation due to the presence of platelet aggregation inhibitor containing adenosine. It accelerated in vitro fibrinolytic activity of urokinase and plasmin.

Small amounts of Saffron stimulate gastric secretion; larger amounts stimulate uterine smooth muscle and exhibit emmenagogue and abortifacient effects.

Saffron extract showed cytotoxic and antimutagenic activity and antitu- mour activity against ascites tumours in mice. Chemical analysis indicated that the naturally occurring crocin may be the active principle responsible for the observed anticancer activity.

A xanthone, carotenoid glycosidic conjugate, mangi-crocin, isolated from saffron, showed significant adapto- genic activity. A natural antioxidant, isolated from saffron stem callus, showed better antioxidant activity than vitamin E. Saffron bulbs are toxic, stigmas in overdoses narcotic.

The dose of stigma and styles at 1.55.0 g is toxic. (Recommended dose : 0.5-1.5 g per day).

Dosage: Dried style and stigma—20-50 mg (API Vol. IV.)... crocus sativus

Fibrinolytic

adj. describing a group of drugs that are capable of breaking down the protein fibrin (see fibrinolysis), which is the main constituent of blood clots, and are therefore used to disperse blood clots (thrombi) that have formed within the circulation, most notably after myocardial infarction. They include *streptokinase, *urokinase, *alteplase, reteplase, and tenecteplase. Possible side-effects include bleeding at needle puncture sites, headache, backache, blood spots in the skin, and allergic reactions.... fibrinolytic

Plasminogen Activators

enzymes that convert the inactive substance *plasminogen to the active enzyme *plasmin, which digests blood clots (see fibrinolysis). There are two types of plasminogen activators, *tissue-type plasminogen activator (tPA) and urokinase-like plasminogen activator (uPA). See blood coagulation.... plasminogen activators

Tissue-type Plasminogen Activator

(tPA, TPA) a natural protein, found in the body and able to be manufactured by genetic engineering, that can break up a thrombus (see thrombolysis). It requires the presence of *fibrin as a cofactor and is able to activate *plasminogen on the fibrin surface, which distinguishes it from the other plasminogen activators, *streptokinase and *urokinase. tPAs include reteplase and tenecteplase, given to treat acute myocardial infarction, and *alteplase.... tissue-type plasminogen activator



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