Serum transferrins of Japanese macaques: Comparison with other species of monkeys

Sera from seven species of monkeys and apes were electrophoresed in starch gels for examining their serum transferrin variations. A single transferrin component was observed in 130 individuals ofMacaca fuscata, while other three macaque species showed multiple components of transferrin. The transferrin ofMacaca fuscata was electrophoretically identical to one of the transferrin components of other macaque species.     

Genetic polymorphism of alpha-1-antitrypsin in macaque species

Thirty-two phenotypes of alpha-1-antitrypsin (al-AT) controlled by 18 codominant alleles of PI_mac locus were identified by isoelectric focusing in 1.121 macaques of nine species. In terms of al-AT polymorphism macaque species vary markedly from nearly monomorphic (Macaca mulatta, M. arctoides) to highly polymorphic (M. nemestrina, M. fascicularis). Only 4 of 18 PI_mac alleles are common for two or more macaque species, the rest of the alleles are species-specific.     

Study of Cynomolgus monkey (Macaca fascicularis) MhcDRB (Mafa-DRB) polymorphism in two populations

Cynomolgus monkey is one of the macaque species currently used as an animal model for experimental surgery and medicine, in particular, to experiment new drugs or therapy protocols designed for the prevention of allograft rejection. In this field, it is of utmost importance to select histoincompatible recipient–donor pairs. One way to ensure incompatibility between donor and recipient is to check their major histocompatibility complex (MHC) genotypes at the loci playing a determinant role in histocompatibility. We report in this paper on the cynomolgus monkey DRB polymorphism evidenced by sequencing of amplified exon 2 separated either by denaturing gradient gel electrophoresis (DGGE), or by cloning. By the study of 253 unrelated animals from two populations (Mauritius and The Philippines), we characterized 50 exon 2 sequences among which 28 were identical to sequences already reported in Macaca fascicularis or other macaque species (Macaca mulatta, Macaca nemestrina). By cloning and sequencing DRB cDNA, we revealed two additional DRB alleles. Out of the 20 haplotypes that we defined here, only two were found in both populations. The functional impact of DR incompatibility was studied in vitro by mixed lymphocyte culture.     

Starch-gel electrophoretic variants of erythrocyte 6-phosphogluconate dehydrogenase in asian macaques

Five alleles with eight electrophoretic phenotypes of 6-phosphogluconate dehydrogenase were found in 1,195 blood samples from fourteen populations of nine macaque species.Macaca fascicularis from Malaya showed the most polymorphism, with three Pgd alleles resulting in five phenotypes.Macaca mulatta, M. speciosa, M. nemestrina, andM. cyclopis had two alleles each (although the last two species showed a high percentage of homozygosity). The remaining four species (M. fuscata, M. radiata, M. maura, andM. nigra) were homozygous for the Pgd^a allele. The predominance of Pgd^a was observed in all macaque species, exceptM. speciosa which showed a high (57%) frequency of Pgd^d. The distinctive position ofM. speciosa with regard to 6PGD variants parallels observations that indicate that this species carries transferrin and carbonic anhydrase I alleles in different frequencies from those of the other macaque species. Other similarities between the patterns of transferrin and 6PGD variations include a tendency toward homozygosity at the Pgd locus in the insular macaque forms. However, in this case only the Pgd^a allele is involved, while some variation was found in the transferrin alleles fixed by the founder effect in the insular macaques.This research was supported by NSF grants GF 253, GB 7426, and GB 15060 of the U.S.-Japan Cooperative Science and Systematic Biology Programs.     

Morphometric analysis ofMacaca arctoides andM. thibetana in relation to other macaque species

As a first step in reviewing the classification of the two stump-tailed macaque species,Macaca arctoides andM. thibetana, as compared with other species of the genusMacaca, 72 linear dental and cranial variables of 11 macaque species were examined by morphometric analyses. The results indicate that the two stump-tailed species are the largest of the macaques and although rather similar overall, they exhibit significant differences in the pattern of variation in most of the five skull regions as shown by Principal Components and Canonical Variate Analyses. Euclidean Distances based on Canonical Variate scores indicate that the females ofM. arctoides andM. thibetana are more widely separated than eight other pairs of macaque species, and that the separations of the respective males are greater than those of three other pairs of species. These findings are consistent withFooden's classification of the stump-tailed macaques as two separate species (Fooden, 1976;Fooden et al., 1985). The present results suggest, as other researchers have proposed on the basis of external features, biochemistry and genetics, that the two stump-tailed macaque species andM. assamensis are closely related. The results also tentatively imply associations withM. fuscata andM. sylvanus but these require further study. The findings have implications for the assessment of the various Chinese Pleistocene macaque fossils.     

Genetic polymorphisms of blood proteins in the troops of Japanese macaques,Macaca fuscata: VI. Serum transferrin polymorphism

As the serum transferrin polymorphism was observed in several macaque species, we considered it as one of the best markers for the study of population genetics of Japanese macaques,Macaca fuscata. In this work the genetic variants of transferrin (Tf) of 1,451 blood samples from 37 troops of this species were tested. The troops showing the variation of Tf were Fukushima, Yugawara T, Ihama, Ryozenyama, Mikata I and II, Takahama, Takahama (Otomi), Arashiyama A, Minoh A and B, Kohchi, Mihara, Shimane, and Tomogashima. The wild-type allele of this species was Tf F, and the variant alleles detected in these troops were E, G⁻, G, and H′. The alleles E, G and H′ were probably identical with those reported in several macaque species byIshimoto (1972), but the identification of allele G⁻ could not be done.     

Genetic variation and evolution in the red cell carbonic anhydrase isozymes of macaque monkeys

The electrophoretic phenotypes of the two isozymes of red cell carbonic anhydrase, CA I and CA II, are described in nine species of macaque monkeys from southeast Asia and Japan. Twelve phenotypes of CA I, apparently under the control of seven alleles, and five phenotypes of CA II, under the control of three alleles, were found in the different macaque populations studied. Extensive electrophoretic polymorphisms of CA I were found in three species (Macaca nemestrina, Macaca speciosa, and Macaca fuscata), and polymorphisms at the CA II locus were found in Macaca irus, Macaca mulatta, and M. nemestrina. In addition to the electrophoretic polymorphisms at the CA I locus in M. nemestrina, an inherited deficiency of CA I was also discovered in which approximately 30% of the individuals in all populations of M. nemestrina tested showed the deficient phenotype. Although the recessive gene controlling this deficiency appears to be an allele of the CA I locus, it is postulated that the CA I deficiency could also be under the control of a closely linked gene. The comparative data on the extent of genetic variation observed in the two isozymes of red cell carbonic anhydrase in macaques appear to support the concept that CA I has evolved more rapidly than CA II in mammals.Supported by USPHS grant GM-15419 and NSF grants GF-253, GB-7426, and GB-15060 of the U.S.-Japan Cooperative Science and Systemic Biology Programs.     

Normal serum biochemical, hematological, and EKG parameters in anesthetized adult male Macaca fascicularis and Macaca arctoides

Selected serum enzymes, cholesterol, triglycerides, glucose, uric acid, protein, albumin, bilirubin, BUN, hematology, and electrocardiograms (EKG) were obtained from adult male cynomolgus (Macaca fascicularis) and adult male stumptailed (Macaca arctoides) macaques. Serum alkaline phosphatase, uric acid, albumin, bilirubin, mean corpuscular hemoglobin (MCH), mean corpuscular volume (MCV) and monocytes were significantly lower in the cynomogus monkeys. This relationship was reversed for serum levels of triglycerides, phosphorus, red blood cell counts and lymphocytes. EKG analysis revealed significantly increased PR interval and QRS wave duration in the cynomolgus species. However, there were no differences in heart rate. Right axis deviation was common in both species.     

Pig-tailed macaques (<Emphasis Type="Italic">Macaca nemestrina</Emphasis>) possess six MHC-E families that are conserved among macaque species: implication for their binding to natural killer receptor variants

MHC loci encode highly polymorphic molecules involved in the presentation of self and non-self peptides to cells of the adaptive and innate immune systems. Although variable, MHC-E genes are well conserved among primates and provide signals to natural killer cells. In this study, we sequenced and analyzed MHC-E alleles of pig-tailed macaque (Macaca nemestrina), a nonhuman primate used for HIV pathogenesis and vaccine studies. Among a group of seven macaques, the characterization of eight Mane-E alleles revealed an increased number of polymorphic sites compared with human HLA-E alleles. Phylogenetic analyses of MHC-E alleles from pig-tailed macaque, rhesus monkey (Macaca mulatta) and cynomolgus macaque (Macaca fascicularis) demonstrated that the three macaque species shared six families of macaque MHC-E alleles and indicated that these families existed in the common ancestor 5.5 million years ago. Polymorphic Mane-E sites were not concentrated within the peptide-binding pockets, but were distributed throughout the entire ORF. The peptide-binding domain of Mane-E is similar to its human analogue, and peptide substrates theoretically capable of binding to Mane-E molecules were found in the leader sequence of classical Mane-A and -B molecules. Additionally, the polymorphic amino acids located in the ₁ and ₂ domains of Mane-E molecules have side chains expected to be oriented toward solvent and away from the peptide-binding groove, suggesting that some of them (positions 19, 73, 79 and 145) might be available for interaction with polymorphic receptors of natural killer cells.     

Conservation of HLA class I private epitopes in macaques

Fifty mouse monoclonal antibodies (mAb) specific for HLA class I epitopes were compared for their reactivity against two closely related nonhuman primate species, pigtailed macaques (Macaca nemestrina, Mn) and longtailed macaques (M. fascicularis, Mfl), which diverged from the hominoids 23–40 million years ago. An analysis of Nei's genetic identity (I) and distance (D) based on reactivity of all class I-specific mAb showed, as expected, that the macaques are more closely related to each other (1=0.959) than to man (I=0.782 for Mn and 0.859 for Mfl). However, there were clear differences in genetic similarity with respect to certain epitopes. Macaques were most different from each other and from man in expression of heterologous epitopes recognized by the mouse that are not polymorphic among humans. In contrast, the most polymorphic epitopes unique to single HLA alleles, so-called private epitopes, were present in all the species, and neither macaque species could be distinguished from humans, suggesting that certain class I private epitopes may be highly conserved in evolution.[/p]Abbreviations used in this paper D Nei's index of genetic distance - I Nei's index of genetic identity - mAb monoclonal antibodies - Mfl Macaca fascicularis - MHC major histocompatibility complex - Mn Macaca nemestrina - PF phenotypic frequency     

Borna disease virus RNA detected in Japanese macaques (Macaca fuscata)

We have examined the seroprevalence of BDV in wild Japanese macaques (Macaca fuscata) in the peninsula (Chiba prefecture), Japan. Serum samples from macaques were examined by the ELISA, Western blot and immunofluorescence assays to detect the presence of serum antibodies that react specifically to BDV antigens. Among 49 investigated individuals, 6 (12.2%) showed positive reaction to BDV antigens. RT-PCR studies detected BDV sequences in brain tissue of one case among four seropositive cases examined. Sequence analysis revealed a high degree of genetic conservation between BDV sequences derived from Japanese macaques and those documented for other animal species. Nevertheless, phylogenetic analysis revealed unique differences between macaque and other species derived BDV sequences.     

<Emphasis Type="Italic">Macaca munzala</Emphasis>: A New Species from Western Arunachal Pradesh,Northeastern India<Superscript>*</Superscript>

Macaca, comprising 20 well-characterized species, represents the largest and one of the most ecologically and socially diverse of all the nonhuman primate genera. We report the discovery of a macaque that is new to science from the high altitudes of western Arunachal Pradesh, a biodiversity-rich state in northeastern India. We propose the scientific name Macaca munzala and the vernacular name Arunachal macaque for the species. It shares morphological characteristics independently with the Assamese macaque (Macaca assamensis) and with the Tibetan macaque M. thibetana; like them, it appears to belong to the sinica species-group of the genus. However, the species is distinctive in relative tail length, which is intermediate between those of Tibetan and Western Assamese macaques, the subspecies with which it is sympatric. It is also unique in its altitudinal distribution, occurring largely at altitudes between 2000 and 3500 m. We provide a morphological characterization of the species, report preliminary data on its field biology and discuss possible taxonomic identity in relation to the other closely-related species of Macaca.^*This paper is dedicated to Dr. A. J. T. Johnsingh for his immense contributions to the study and conservation of India’s wildlife and for being an inspiration to a whole generation of students.     

Postconflict social interactions among barbary macaques (Macaca sylvanus)

We investigated the occurrence of postconflict social interactions in a group of Barbary macaques (Macaca sylvanus)that live in a large enclosure. We collected data during the mating and the nonmating seasons and analyzed them via two methods. Separate analyses for the two seasons yielded very similar results. Reconciliation and redirection occurred. But we found no evidence for consolation and postconflict kin-oriented affiliation. The consistency of these findings with those on other species of Macacaindicates that reconciliation and redirection are typical postconflict social interactions of macaque victims.     

How laboratory-raised Japanese monkeys (Macaca fuscata) perceive rotated photographs of monkeys: Evidence for an inversion effect in face perception

Five laboratory-raised Japanese monkeys (Macaca fuscata) were presented various types of photographs of Japanese and rhesus monkeys (Macaca mulatta) in upright, horizontal, and inverted orientations in a sensory-reinforcement experiment. The ratio of the duration of potential viewing time for the photographs which the subjects controlled to the interval between subject-controlled presentations of them (the D/I score) was used as a measure of preference for the photographs. When inverted photographs were presented, the D/I scores were lower than for upright photographs. The difference in D/I scores between photographs of the two species, which indicated discriminability between them, also diminished when the photographs were inverted. The results obtained suggest an inversion effect in face perception in macaque monkeys.     

Reappraisal of <Emphasis Type="Italic">Macaca speciosa subfossilis</Emphasis> from the Late Pleistocene of Northern Vietnam Based on the Analysis of Cranial Anatomy

Jouffroy (Bulletin du Muséum National d'Histoire Naturelle. Série 2 31:209–216, 1959) described Macaca speciosa subfossilis on the basis of her study of the external anatomy of a nearly complete cranium (PV F1; Muséum national d’Histoire naturelle, Paris) found in the Late Pleistocene cave deposits, Thung-Lang, northern Vietnam. Whereas Jouffroy (Bulletin du Muséum National d'Histoire Naturelle. Série 2 31:209–216, 1959) considered it to belong to an ancestor of Macaca arctoides or M. thibetana, Fooden (Journal of Human Evolution 19:607–686, 1990) reexamined the facial anatomy and assigned it to the extant species M. arctoides. We used computed tomography images to reevaluate the phylogenetic position of Macaca speciosa subfossilis by comparing the external and internal features of PV F1 with those of the crania of the extant macaque species. PV F1 shows a lower degree of preorbital concavity than Macaca arctoides, M. assamensis, and M. thibetana, but shares an anteriorly directed malar as seen in the crania of the two former species. The size of the molars of PV F1 falls within a range such that the cranium may be assigned to any of the five species of Macaca arctoides, M. assamensis, M. thibetana, M. mulatta, and M. nemestrina. An analysis of the internal structure of the cranium reveals that only PV F1 and the cranium of Macaca arctoides have a pear-shaped nasal cavity expanding laterally at both the anterior and posterior regions. Such a feature is probably a derived condition in the macaque lineage, suggesting a close relationship between Macaca speciosa subfossilis and M. arctoides. This finding supports the paleobiological scenario that the members of the lineage of Macaca arctoides diverged from the other members of Asian macaques and became distributed in northern Vietnam as early as the Late Pleistocene.     

Species recognition by five macaque monkeys

Sixteen monkeys of five macaque species (Macaca fuscata fuscata, M. mulatta, M. radiata, M. nemestrina, andM. arctoides) pressed a lever to see a variety of pictures (35 mm slides) of seven macaque species including their conspecifics. The subjects were allowed to see the same picture for the duration of the lever press and were able to see the same picture repeatedly by pressing the lever within 10 sec after the previous release of the lever. When 10 sec passed after releasing the lever, the next picture was set on the slide projector. All monkeys exceptM. arctoides and two infantM. fuscata fuscata pressed the lever to see their conspecifics for the longest duration. For all of the adult subjects, a multivariate analysis of variance (MANOVA) based on the mean duration of lever pressing responses (D) and the mean interval between the responses (I) revealed that the data for conspecific stimuli were distributed at significantly different locations from those for at least one of six close species on a two-dimensional space constructed with D and I. These results suggest that adult macaque monkeys visually discriminate their conspecifics from close species based on the still images of them.     

高通量血液透析联合肾衰宁颗粒对尿毒症患者钙磷代谢、炎症反应以及营养状况的影响

摘要 目的：探讨高通量血液透析（HFHD）联合肾衰宁颗粒对尿毒症患者钙磷代谢、炎症反应以及营养状况的影响。方法：选取2017年1月~2019年10月在我院接受血液透析治疗的尿毒症患者114例作为研究对象,按随机数字表法分成对照组和观察组,每组各57例,对照组给予HFHD,观察组在对照组基础上口服肾衰宁颗粒。两组均治疗3个月。比较两组患者治疗前后肾功能指标,包括尿素氮（BUN）、血肌酐（Scr）、肾小球滤过率（GFR）;钙磷代谢相关指标血清钙、血清磷、甲状旁腺激素（PTH）;炎症反应指标,包括降钙素原（PCT）、C反应蛋白（CRP）、白细胞介素-6（IL-6）;营养状况指标,包括白蛋白（ALB）、血红蛋白（Hb）、血清总蛋白（TP）。结果：治疗后两组患者BUN、Scr、GFR、血清磷、PTH、PCT、CRP、IL-6较治疗前降低,血清钙、ALB、Hb、TP较治疗前升高,观察组患者BUN、Scr、GFR、血清磷、PTH、PCT、CRP、IL-6低于对照组,血清钙、ALB、Hb、TP高于对照组,差异均有统计学意义（P<0.05）。结论：HFHD联合肾衰宁颗粒治疗尿毒症,可有效改善患者的钙磷代谢和肾功能,改善机体炎症状态及营养状况。     

Vocal communication of tonkean macaques in confined environments

Vocal recordings of one semi-free-ranging group and one captive group of Tonkean macaques (Macaca tonkeana) were used to establish the vocal repertoire of the species. Only the alpha male of the groups uttered a very distinctive loud call. Localization variants of coo calls were found. Alarm calls given by this species were acoustically similar to those by Japanese, rhesus, and long-tailed macaques (M. fuscata, M. mulatta, andM. fascicularis). Adult females uttered a specific variant of vocalizations during sexual morphological changes. The repertoire of agonistic vocalizations was more variable than that of any other macaque species investigated. These characteristics were discussed with reference to previous studies on vocalizations of macaque species.     

Perosomus elumbis in a stillborn rhesus macaque (Macaca mulatta): A case report

Perosomus Elumbis (PE) is a rare congenital disorder characterized by absence of caudal spine (lumbar, sacral, and coccygeal vertebrae). Here, we present the first reported case of PE in a rhesus macaque (Macaca mulatta) and relate our findings to those described in other species.     

Copulatory behavior in relation to anatomical characteristics of three macaques

Anatomy of copulatory organs and patterns of copulatory behavior were studied in three species of Macaca. The copulatory behavior of the rhesus monkey (M. mulatta) and crab-eating macaque (M. fascicularis) were similar. Mounting time was longer in stump-tailed macaque (M. arctoides) (48 seconds) than in the rhesus monkey or crab-eating macaque (8.5 seconds). Species differences were correlated with anatomical differences in the female and male reproductive organs. In the stump-tailed macaque the male has a relatively long penis, and the female has an elaborate vestibular colliculus in the vestibule. Both rhesus and crab-eating macaques have a short penis, and the female has no vestibular colliculus. Under scanning electron microscope, cone-like projections (3–4 mm) were observed on the surface of the glans and corpus penis of M. arctoides. In M. fascicularis shorter projections (0.05–0.1 mm) were observed on the glans penis but not the corpus penis.