Finding the optimal dose of vitamin K1 to treat vitamin K deficiency and to avoid anaphylactoid reactions
| Autor: | Xue Xiao, Yan-ni Mi, Yong-Xiao Cao, Lei Cao, Yan-bing Zhu, Bo Li, Jian-kang Ren, Na-na Ping |
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| Rok vydání: | 2016 |
| Předmět: |
Vitamin
Male medicine.medical_specialty 030209 endocrinology & metabolism 030226 pharmacology & pharmacy Beagle Rats Sprague-Dawley 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Internal medicine Vitamin K deficiency medicine Animals Pharmacology (medical) Anaphylaxis Blood Coagulation Pharmacology Prothrombin time medicine.diagnostic_test Dose-Response Relationship Drug Chemistry Vitamin K2 Antagonist Vitamin K 1 medicine.disease Rats Endocrinology Coagulation Female Vitamin K Deficiency Partial thromboplastin time |
| Zdroj: | Fundamentalclinical pharmacology. 31(5) |
| ISSN: | 1472-8206 |
| Popis: | Vitamin K1 injection induces severe dose-related anaphylactoid reactions and overdose for the treatment of vitamin K deficiency. We aimed to find an optimal and small dose of vitamin K1 injection to treat vitamin K deficiency and avoid anaphylactoid reactions in animal. Rats were administered a vitamin K-deficient diet and gentamicin to establish vitamin K deficiency model. Behaviour tests were performed in beagle dogs to observe anaphylactoid reactions. The results showed an increased protein induced by vitamin K absence or antagonist II (PIVKA-II) levels, a prolonging of prothrombin time (PT) and activated partial thromboplastin time (APTT) and a decrease in vitamin K-dependent coagulation factor (F) II, VII, IX and X activities in the model group. In vitamin K1 0.01 mg/kg group, the liver vitamin K1 levels increased fivefold and the liver vitamin K2 levels increased to the normal amount. Coagulation markers PT, APTT, FVII and FIX activities returned to normal. Both in the 0.1 and 1.0 mg/kg vitamin K1 groups, coagulation functions completely returned to normal. Moreover, the amount of liver vitamin K1 was 40 (0.1 mg/kg) or 100 (1.0 mg/kg) times as in normal. Vitamin K2 was about 4 (0.1 mg/kg) or 5 (1.0 mg/kg) times as the normal amount. There was no obvious anaphylactoid symptom in dogs with the dose of 0.03 mg/kg, which is equivalent to the dose of 0.01 mg/kg in rats. These results demonstrated that a small dose of vitamin K1 is effective to improve vitamin K deficiency and to prevent anaphylactoid reactions, simultaneously. |
| Databáze: | OpenAIRE |
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