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Albendazole sulphoxide enantiomers in pregnant rats' embryo concentrations and developmental toxicity. 2003

B P S Capece, and M Navarro, and T Arcalis, and G Castells, and L Toribio, and F Perez, and A Carretero, and J Ruberte, and M Arboix, and C Cristòfol
Departament de Farmacologia, de Terapèutica i de Toxicologia, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain.

Three single oral doses (8.5, 10, and 14 mg/kg) of a racemic formulation of albendazole sulphoxide (ABZSO) were administered to pregnant rats on day 10 of gestation. Mother plasma and embryo concentrations of ABZSO enantiomers and albendazole sulphone (ABZSO(2)) were determined 9 h after administration. The (-)-ABZSO enantiomer showed higher peak concentrations in both maternal plasma and embryo than the (+) enantiomer. An increase in embryo concentrations of ABZSO enantiomers and ABZSO(2) was only observed when dose rose to 14 mg/kg. There was an increase in resorption when the dose increased, but significant differences were only found in the higher dose group when compared with the other groups. The incidence of external and skeletal malformations (mostly of the tail, vertebrae and ribs) rose significantly in the 10 mg/kg group, producing almost 20% and 90% of malformed fetuses, respectively, and gross external and skeletal abnormalities in the thoracic region and limbs were also found.

UI MeSH Term Description Entries
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D001842 Bone and Bones A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principal cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX. Bone Tissue,Bone and Bone,Bone,Bones,Bones and Bone,Bones and Bone Tissue,Bony Apophyses,Bony Apophysis,Condyle,Apophyses, Bony,Apophysis, Bony,Bone Tissues,Condyles,Tissue, Bone,Tissues, Bone
D005260 Female Females
D005314 Embryonic and Fetal Development Morphological and physiological development of EMBRYOS or FETUSES. Embryo and Fetal Development,Prenatal Programming,Programming, Prenatal
D000015 Abnormalities, Multiple Congenital abnormalities that affect more than one organ or body structure. Multiple Abnormalities
D000284 Administration, Oral The giving of drugs, chemicals, or other substances by mouth. Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000871 Anthelmintics Agents that kill parasitic worms. They are used therapeutically in the treatment of HELMINTHIASIS in man and animal. Anthelmintic,Antihelmintic,Vermifuge,Vermifuges,Antihelmintics
D015766 Albendazole A benzimidazole broad-spectrum anthelmintic structurally related to MEBENDAZOLE that is effective against many diseases. (From Martindale, The Extra Pharmacopoeia, 30th ed, p38) Albendazole Monohydrochloride,Albendoral,Albenza,Andazol,Bendapar,Bilutac,Digezanol,Disthelm,Endoplus,Eskazole,Gascop,Lurdex,Mediamix V Disthelm,Metiazol,SK&F-62979,SKF-62979,Valbazen,Zentel,Monohydrochloride, Albendazole,SK&F 62979,SK&F62979,SKF 62979,SKF62979
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats

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