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9 recordsLinked to original sources
PubMed1977

Blood groups of crab-eating macaques (Macaca fascicularis) demonstrated by isoimmune rhesus monkey (Macaca mulatta) sera.

Twenty-one isoimmune sera produced in rhesus monkey (Macaca mulatta) containing type-specific antibodies for simian-type red cell antigens were tested for their cross-reactivity with red cells from crab-eating macaques (M. fascicularis). The majority of the antisera gave cross-reactions determining polymorphisms in the red cells of crab-eating macaques, homologous to those of rhesus monkeys. These results attest to the close taxonomic realationship between the two species of macaques, and have the practical implication that isoimmune sera produced for blood typing can also be used for typing red cells from related species, as has been also observed in studies on apes.

Animals↗
PubMed2026

Discovery and evolution of endogenous retroviruses in the genome of crab-eating macaque (Macaca fascicularis).

Endogenous retroviruses (ERVs) are a dynamic and biologically significant component of vertebrate genomes, with integration events spanning deep evolutionary time. The crab-eating macaque (Macaca fascicularis) is an important non-human primate model for biomedical research because of its close phylogenetic relationship to humans and its conservation status as an endangered species. However, the ERV complement of its genome has not been systematically characterized. Using the current highest-quality chromosome-level genome assembly for this species, we performed a genome-wide, homology-based survey of relatively intact ERV proviruses in M. fascicularis. We identified 106 proviral loci distributed across all chromosomes. Phylogenetic reconstruction based on conserved reverse transcriptase domains classified these elements into β-, γ-, and unclassified lineages, with β- and γ-retroviral lineages predominating. LTR divergence-based dating indicated that these proviruses represent multiple waves of historical retroviral activity and span a broad range of integration ages. This curated dataset provides a high-confidence reference set for investigating the evolutionary history and genomic impact of preserved ERV proviruses in an endangered primate model; however, it does not include degraded ERV fragments or solo LTRs.

Animals↗
PubMed1978

Genital inoculation of male Macaca fascicularis with Neisseria gonorrhoeae and Ureaplasma urealyticum.

Inoculation of the urethra, conjunctiva, pharynx, and anal canal of six male crab-eating macaques (Macaca fascicularis) with urethral exudate from male patients with urethral gonorrhoea or with laboratory gonococcal strains was unsuccessful in establishing infection or producing increased polymorphonuclear leucocytes on Gram stain. Intraurethral inoculation with laboratory strains of Ureaplasma urealyticum resulted in transiently positive urethral cultures for U. urealyticum and was associated in some cases with increased numbers of polymorphonuclear leucocytes on Gram stain of urethral material. The findings suggest that the crab-eating macaque may be useful for studying the pathogenesis of urethral infection with U. urealyticum.

Animals↗
PubMed1978

Blood groups of pig-tailed macaques (Macaca nemestrina).

The human-type A-B-O blood groups of 57 pig-tailed macaques (Macaca nemestrina) were determined and the calculated gene frequencies, O = 0.8908, A = 0.0825 and B = 0.0267, gave excellent fit with the hypothesis of inheritance by triple allelic genes. In tests for simian-type blood groups with rhesus, baboon and crab-eating macaque immune antisera, it was shown that the red cells of pig-tailed macaques are polymorphic for several simian-type specificities defined by those cross-reacting sera. Pig-tailed macaques share with other macaque species the complex Drh-graded blood group system, which seems to occupy a special role among red cell antigens of macaques. Normal sera of three female macaques contained spontaneous isoagglutinins which selectively agglutinated the red cells of some pig-tailed as well as stump-tailed macaques.

ABO Blood-Group System↗
PubMed1977

Absence of self-recognition in a monkey (Macaca fascicularis) following prolonged exposure to a mirror.

To date only chimpanzees, orangutans, and humans have been found capable of recognizing themselves in mirrors. In an attempt to provide a more definitive test of the capacity for self-recognition in monkeys. I gave a preadolescent crab-eating macaque 2400 hr of mirror exposure. However, patterns of self-directed behavior never developed and a more explicit test of self-recognition yielded negative results. The data indicate possible differences between great apes and monkeys in self-awareness.

Animals↗
PubMed1977

Erythroblastosis models. II. Materno-fetal incompatibility in chimpanzee.

Erythroblastosis fetalis represents a significant hazard for successful management of pregnancy in man and in marmosets, but not in crab-eating macaques. Materno-fetal blood group incompatibility in chimpanzee is described as a contributing factor in the death of an infant. The findings indicate that parental blood groups should be taken into consideration when breeding chimpanzees.

Animals↗
PubMed1978

Blood groups of macaques:a comparative study.

Distribution of the human-type and of the simian-type blood groups in rhesus, crab-eating, bonnet, pig-tailed and stump-tailed macaques revealed significant similarities and differences among these species. Human-type A--B-O blood groups cut across taxonomic lines and seem less value for taxonomic purposes than the simian-type blood groups detected by cross-reacting isoimmune rhesus monkey sera.

ABO Blood-Group System↗
PubMed1977

Measurement of hemolytic complement and the third component of complement in nonhuman primates.

Complement, determined by hemolytic assay, and the third component of complement (C3), determined by radial immunodiffusion assay, were measured in nine nonhuman primate species. The species studied were the titi (Callicebus mollach). The sooty mangabey (Cercocebus atys), the thick-tailed galago or bushbaby (Galago crassicaudatus panganiensis), the crab-eating monkey (Macaca fascicularis), the rhesus monkey (Macaca mulatta), the bonnet monkey (Macaca radiata), the stumptailed macaque (Macaca speciosa), the yellow baboon (Papio cynocephalus), and the black-and-red tamarin (Saguinus nigricollis). Both sheep and bovine erythrocytes were used in the hemolytic complement assays. With the sheep erythrocyte system, sera from four species (yellow baboon, sooty mangabey, bonnet monkey, black-and-red tamarin) had similar titers with both antibody sensitized and non-sensitized erythrocytes. In contrast, the titers obtained using sensitized bovine erythrocytes was always higher than the values obtained using non-sensitized bovine erythrocytes. In all species, the titers for non-sensitized sheep erythrocytes was higher than the titer for non-sensitized bovine erythrocytes. When the species were compared for cross reactivity using the radial immunodiffusion assay for human C3, the rhesus monkey showed the strongest cross reaction; the thick-tailed galago, a prosimian, showed no detectable cross reactivity; and the other species examined showed intermediate degrees of reactivity.

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