Sequential pattern of limb anomalies in Japanese monkeys on Awajishima Island

Homma, Toshihiko

doi:10.1007/bf02383821

Cited by 18 publications

(16 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most of the malformations of these Japanese monkeys were limited to limbs, although the morphological variability was very large from polydactyly to ectromelia (YosHIHIRO et al, 1979;HOMMA, 1980). The occurrence of such malformations in the Japanese monkey may be characterized as follows (ASCMJM, 1979;YOSHIHIRO et al, 1979;SmDEI et al, 1981SmDEI et al, , 1984: (1) The rate of occurrence of malformations was very high in provisioned troops.…”

Section: Introductionmentioning

confidence: 92%

“…Since the first description of malformation was given in the Takasakiyama troop of Japanese monkeys (Macacafuscata) by ITANI and MIZUHARA (1957), many reports on congenital limb malformations have been published [FoRUYA, 1966;TANAKA & N IGI, 1967;IWAMOTO, 1967;IWAMOTO & HIRAk 1970;NIGI & TANAKA, 1973;YOSHIHIRO et al, 1979; ASSOCIATION FOR THE STUDY OF THE CONGENITAL MALFORMATION IN THE JAPANESE MONKEY (ASCMJM), 1979;HOMMA, 1980]. Most of the malformations of these Japanese monkeys were limited to limbs, although the morphological variability was very large from polydactyly to ectromelia (YosHIHIRO et al, 1979;HOMMA, 1980).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A cytogenetic study on congenital limb malformations in the Japanese monkey (Macaca fuscata)

et al. 1990

View full text Add to dashboard Cite

ABSTRACT. A cytogenetic investigation was performed on 88 Japanese monkeys (Macacafuscata)with abnormal limbs from 11 free-ranging provisioned troops including nine individuals with abnormalities indistinguishable as to whether they were congenital or injurious. All of the monkeys with abnormal limbs including the nine questionable individuals had the same karyotypes as those of normal individuals. The chromosome number was 42, consisting of 20 hi-arm autosome pairs and a submetacentric X-chromosome and Y-chromosome. The ninth chromosome pair, which was the only chromosome pair with remarkable secondary constriction, displayed length polymorphism of the centromeric C-band and secondary constriction in both deformed and normal monkeys. These kinds of variants have also been commonly found in other monkey species, which have almost the same karyotype as the Japanese monkey and have not been reported to show frequent occurrence of limb malformation. We concluded therefore that chromosomal abnormalities could be excluded from the main causal factors for limb malformations of the Japanese monkey.

show abstract

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

A cytogenetic study on congenital limb malformations in the Japanese monkey (Macaca fuscata)

et al. 1990

View full text Add to dashboard Cite

show abstract

“…Since the 1950's, various congenital malformations of limbs in Japanese monkeys have been reported and their morphology and frequency of occurrence in various free-ranging groups have been investigated (FORuYA, 1966;Iwnraoro, 1967;YosmHmO et al, 1979;HOMMA, 1980). However, the behavior of the malformed Japanese monkeys has scarcely been studied yet.…”

Section: Introductionmentioning

confidence: 96%

Behavioral development of a malformed infant in a free-ranging group of Japanese monkeys

1983

View full text Add to dashboard Cite

ABSTRACT. The behavioral development of a malformed male infant in a free-ranging Japanese monkey group, whose hands were completely missing and whose hind feet were distorted, was investigated during the first one year of life, by comparison with normal infants. In the first few weeks of life, the malformed infant was not able to move by himself and was almost completely dependent on his mother's help. He gradually became able to creep with his forelimb elbows and distorted hind feet at about the first month of life, and was able to walk bipedally on his hind feet, though unstably, after the sixth month of life. His locomotor ability, however, was essentially inferior to that of normal infants throughout the first one year of life. His social interactions with the group members were different from those of normal infants. Normal infants increased their interactions with sameaged infants or older juveniles through active behavior-like play, whereas the malformed infant developed relations particularly with adults through behavior such as passive body contact. The conditions for survival of the observed malformed infant are discussed.

show abstract

“…A polymelic individual tends to have an extra limb with a similar structure to that of a standard limb, such as articulated toes and skeletal elements. Yoshihiro et al (1979) and Homma (1980) exhaustively reported skeletal deformities in Japanese macaques (Macaca fuscata), but they did not find this type of anomalous bone; skeletal elements were found to have been deleted in the majority of cases, whereas conditions with supernumeral skeletal elements-such as mirror foot (Homma 1980) or polydactyly (Yoshihiro et al 1979)-were very rare. The Havill (2004) thickness of the cortex of left anomalous bone was 0.5-1.2 mm.…”

Section: Discussionmentioning

confidence: 90%

“…Although fractures and healing of limb bones in gibbons and capuchins (Schultz 1969, figs. 71 and 72) and congenital deformities in limbs (Yoshihiro et al 1979;Homma 1980) have been reported, this kind of anomalous bone formation has not.…”

Section: Introductionmentioning

confidence: 90%

Tubular anomalous bones found in both thighs of a long-tailed macaque (Macaca fascicularis)

Hamada

Sawada

Cho³

et al. 2011

Primates

View full text Add to dashboard Cite

Tubular anomalous bones were found in both thighs of a 6-year-old male long-tailed macaque (Macaca fascicularis) bred in captivity. The bones had jagged ends and protruded from the skin. Radiographs showed that they developed in the femurs at the middle and elongated. They were removed with surgery under anesthesia. Histological analysis revealed that these bones had the same histological structure as the femur, though they were composed of primary and secondary osteon regions. This finding indicated that the new bones developed from the old bone piece(s), acquired a tubular shape, and elongated. It is suggested that the anomalous bones were produced not by the congenital deformity but by regeneration from fragments of the fractured femur that were embedded in the bone marrow; these acquired a tubular pattern and elongated.

show abstract

Sequential pattern of limb anomalies in Japanese monkeys on Awajishima Island

Abstract: ABSTRACT. X-ray examinations of Japanese monkeys (Macaca fuscata) in two groups on Awaji-

Cited by 18 publications

References 10 publications

A cytogenetic study on congenital limb malformations in the Japanese monkey (Macaca fuscata)

A cytogenetic study on congenital limb malformations in the Japanese monkey (Macaca fuscata)

Behavioral development of a malformed infant in a free-ranging group of Japanese monkeys

Tubular anomalous bones found in both thighs of a long-tailed macaque (Macaca fascicularis)

Contact Info

Product

Resources

About