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Comparison of Iron-chelating Effects of Clinically Used Peroral Iron Chelators and 8-hydroxyquinolines
Zárubová, Pavla ; Mladěnka, Přemysl (advisor) ; Pávek, Petr (referee)
in English Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of pharmacology and toxicology Candidate: Pavla Zárubová Consultant: Přemysl Mladěnka, Ph.D. Name of thesis: Comparison of iron-chelating effects of clinically used peroral iron chelators and 8-hydroxyquinolines Iron is an essentials element, which takes part in many vital processes. However, excessive iron can be toxic for the organism by catalyzing production of free radicals. Long-term administration of blood transfusions in the therapy of various anaemias is the most common cause of iron overload. Each transfuzion represents an intake of 200-250 mg iron in the organism, which due to low daily elimination (only 1-2 mg) leads to iron overload. As a result, complications like cardiovascular impairment or liver fibrosis can emerge. The risk of these severe complications can be reduced by administration of iron chelators. Deferoxamine has been traditionally used for the chelation therapy of chronic iron overload, but to his disadvantages belong frequent parenteral applications. In these days we can also use modern orally acive chelators (deferipron, deferoxamin). Furthermore, there is a wide range of potentially new indications (inflammation, tumor, cardiovascular and neurodegenerative diseases). In all these...
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Comparison of iron-chelating properties of synthetic iron chelators
Zárubová, Pavla ; Mladěnka, Přemysl (advisor) ; Pourová, Jana (referee)
in English Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of pharmacology and toxicology Candidate: Pavla Zárubová Tutor: Přemysl Mladěnka, Ph.D. Name of thesis: Comparison of iron-chelating properties of synthetic iron chelators Iron is an essential element for living cells. Both lack of iron (sideropenia) and iron overload can be dangerous for the organism. Thus, iron homeostasis is maintained on the cellular and whole body levels. Sideropenia may occur as a consequence of increased blood loss/ increased iron need (menarche, gravidity, lactation), lack of iron in food or in derangements of gastrointestinal tract. Iron excess can be caused by acute intoxication, dangerous mainly in children, and also in chronic poisoning, caused by hereditary disorders or especially by frequent blood transfusions during the treatment of some haematological diseases. Iron chelators are a wide group of chemical substances with very variable structure. They have been used therapeutically in different indications for many years and other indications are being researched recently. Traditionally, they are used for chelation therapy in acute intoxication and in chronic iron overload, nowadays they are in the center of research attention in association with cancer and neurodegenerative...
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Comparison of Iron-chelating Effects of Clinically Used Peroral Iron Chelators and 8-hydroxyquinolines
Zárubová, Pavla ; Mladěnka, Přemysl (advisor) ; Pávek, Petr (referee)
in English Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of pharmacology and toxicology Candidate: Pavla Zárubová Consultant: Přemysl Mladěnka, Ph.D. Name of thesis: Comparison of iron-chelating effects of clinically used peroral iron chelators and 8-hydroxyquinolines Iron is an essentials element, which takes part in many vital processes. However, excessive iron can be toxic for the organism by catalyzing production of free radicals. Long-term administration of blood transfusions in the therapy of various anaemias is the most common cause of iron overload. Each transfuzion represents an intake of 200-250 mg iron in the organism, which due to low daily elimination (only 1-2 mg) leads to iron overload. As a result, complications like cardiovascular impairment or liver fibrosis can emerge. The risk of these severe complications can be reduced by administration of iron chelators. Deferoxamine has been traditionally used for the chelation therapy of chronic iron overload, but to his disadvantages belong frequent parenteral applications. In these days we can also use modern orally acive chelators (deferipron, deferoxamin). Furthermore, there is a wide range of potentially new indications (inflammation, tumor, cardiovascular and neurodegenerative diseases). In all these...
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Comparison of iron-chelating properties of synthetic iron chelators
Zárubová, Pavla ; Mladěnka, Přemysl (advisor) ; Pourová, Jana (referee)
in English Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of pharmacology and toxicology Candidate: Pavla Zárubová Tutor: Přemysl Mladěnka, Ph.D. Name of thesis: Comparison of iron-chelating properties of synthetic iron chelators Iron is an essential element for living cells. Both lack of iron (sideropenia) and iron overload can be dangerous for the organism. Thus, iron homeostasis is maintained on the cellular and whole body levels. Sideropenia may occur as a consequence of increased blood loss/ increased iron need (menarche, gravidity, lactation), lack of iron in food or in derangements of gastrointestinal tract. Iron excess can be caused by acute intoxication, dangerous mainly in children, and also in chronic poisoning, caused by hereditary disorders or especially by frequent blood transfusions during the treatment of some haematological diseases. Iron chelators are a wide group of chemical substances with very variable structure. They have been used therapeutically in different indications for many years and other indications are being researched recently. Traditionally, they are used for chelation therapy in acute intoxication and in chronic iron overload, nowadays they are in the center of research attention in association with cancer and neurodegenerative...
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