Pattern of Limb Malformations in Mice Induced by Methoxyacetic Acid
Hiroshima Journal of Medical Sciences Volume 40 Issue 3
Page 93-99
published_at 1991-09
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Title ( eng ) |
Pattern of Limb Malformations in Mice Induced by Methoxyacetic Acid
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Creator |
Rasjad Chairuddin
Yamashita Keisuke
Datu Abdul Razak
Yasuda Mineo
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Source Title |
Hiroshima Journal of Medical Sciences
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Volume | 40 |
Issue | 3 |
Start Page | 93 |
End Page | 99 |
Journal Identifire |
[PISSN] 0018-2052
[EISSN] 2433-7668
[NCID] AA00664312
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Abstract |
The present study investigated the pattern of limb malformations induced in mice by methoxyacetic acid (MAA), one of di(2-methoxyethyl) phthalate (DMEP) metabolites. Pregnant Jcl:ICR mice were given orally at gestational day (gd) 10.5, 11.0, or 11.5 (vaginal plug = gd 0) a single dose of MAA 10 mmol/kg of body weight. Fetuses were examined at gd 15.5 for external and skeletal malformations. Limb defects were maximum in frequency and severity after administration at gd 11.5. Forelimbs had greater susceptibility than hindlimbs. Treatment at gd 10.5 produced cutaneous or osseous syndactyly between digits I and II, II and III, and ectrodactyly of digit II or digit I. Intercalary defects in the forelimbs were also detected. No hindlimb malformations were induced. Treatment at gd 11.0 induced ectrodactyly of digit II and digit I in the forelimbs, as well as osseous syndactyly or intercalary defects of the metacarpals or phalanges, and the frequency became increased. Hindlimb malformations were also detected in a small number with syndactyly between digits I and II or ectrodactyly in digit I. Treatment at gd 11.5 induced ectrodactyly in the forelimbs. Half of the forelimbs showed ectrodactyly with four missing digits (digits I, II, III, and V) and the remaining limbs showed ectrodactyly with a similar frequency with one, two, or three missing digits, either in the pre- or postaxial area. In the hindlimbs ectrodactyly with one, two, or three missing digits was the most common malformation observed. Syndactyly between digits I and II was also induced in a small percentage.
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Keywords |
Teratogenesis
Plasticizers
Syndactyly
Ectrodactyly
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Descriptions |
This study was supported by Japan Society for the Promotion of Science (JSPS) RONP AKU (Dissertation Ph. D.) program and Hayashi's Foundation.
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NDC |
Medical sciences [ 490 ]
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Language |
eng
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Resource Type | departmental bulletin paper |
Publisher |
Hiroshima University Medical Press
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Date of Issued | 1991-09 |
Publish Type | Version of Record |
Access Rights | open access |
Source Identifier |
[ISSN] 0018-2052
[NCID] AA00664312
[PMID] 1761407
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