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W W Socha

Publications and source records attributed to W W Socha.

At least 55 records · Page 3Linked to original sources

Chimpanzee R-C-E-F blood group system: a counterpart of the human Rh-Hr blood groups.

A chimpanzee blood group system is defined by a set of isoimmune antisera, anti-Rc, anti-Cc, anti-Ec, anti-Fc, anti-Cc and anti-Cc1, that distinguish 19 blood types. Population analysis of 285 unrelated animals and the study of 21 chimpanzee families support the postulated model of inheritance by 9 allelic genes. There is a close relationship between the R-C-E-F blood group system and human Rh-Hr blood groups as indicated by overall structural resemblance of both systems and by serological similarity of their principal antigens, Rc and Rho. There are indications that R-like structures are also present on the red cells of other anthropoid apes, and possibly on those of the Old World monkeys.

Alleles↗

The A-B-O blood groups of rhesus monkeys: new observations.

A rhesus monkey family is described in which a group A offspring was born from a group AB mother and a group B male parent. Discovery of A and O genes in rhesus monkeys indicates that this species of macaques is polymorphic for the A-B-O blood groups, and not monomorphically B, as previously believed.

ABO Blood-Group System↗

Blood groups : immunogenetic markers in primate animals and their use in breeding and standardization.

The importance of immunogenetics for definition and standardization of laboratory animals has been demonstrated by their successful application for breeding of laboratory mice and rats, and in planned breeding of large domestic animals. Among the immunogenetic markers used, blood groups are the best known and generally considered as the most important. For close to two decades, serology and genetics of blood groups have been investigated by this Laboratory in the most commonly used laboratory primates, namely, macaques, (rhesus, crab-eating, pig-tailed and bonnet), baboon (olive, yellow and hamadryas) as well as chimpanzees. Blood groups of many other primate species have also been surveyed but in a less intensive manner. Blood groups of apes and monkeys are defined by standard methods of human serohematology, using both reagents developed for typing human blood and reagents obtained from the sera of immunized primate animals. The presently available reagents define, depending on species, between 10 and 25 blood groups in macaques, 20 to 25 blood groups in baboons and 45 types in chimpanzees. The available blood group genetic markers will be listed and their value for standardization and breeding of laboratory primates will be discussed.

Animals↗

Blood groups of apes and monkeys: current status and practical applications.

Two categories of blood groups, human-type and simian-type, occur in apes and monkeys and can be routinely tested by methods established for grouping human blood. Abundant data have been obtained on blood groups of chimpanzees, baboons and macaques. Studies of populations of animals, both feral and kept in captivity, resulted in the definition of a number of erythrocyte antigens, some of which fall into separate blood group systems. Two complex chimpanzee blood group systems, V-A-B-D and R-C-E-F systems, proved to be counterparts of the human M-N-S and Rh-Hr blood group systems, respectively. Two graded blood group systems were defined in Old World monkeys: the Drh system of macaques and the Bp system of baboons, both linked by at least one specificity shared by either of the blood group systems. With established modes of inheritance, blood groups of apes and monkeys become useful chromosomal markers in genetic studies of primates as well as important tools for taxonomists. Serology of some of the blood groups suggests their practical importance in breeding of primates as well as in clinical and experimental problems calling for transfusion of blood or transplantation of organs and tissues.

Animals↗

Antistreptococcal antibodies, rheumatoid factors and haptoglobin in apes and monkeys.

Sera of 157 baboons (Papio hamadryas and P. anubis) 21 chimpanzees (Pan troglodytes) five orang utans (Pongo pygmaeus) three mountain gorillas (Gorilla gorilla beringei) and three gibbons (Hylobates lar lar) were examined for the content of antistreptolysin O, antidesoxyribonuclease B, for the presence of rheumatoid factors as well as for the level and type of haptoglobin. The mean antistreptolysin O titer (AST) in baboons was 106 ASU +/- 18 in dextransulfate absorbed sera ("real" AST) and 182 ASU +/- 34 in non-absorbed sera. The mean decrease after absorption was 20% (i.e., 20% inhibitor + 80% antistreptolysin O), a value that is lower than previously found in rhesus monkeys (55%) or in man (40%). Raised values of anti-DNase B were found in two baboons only, and none of the sera of that species displayed presence of rheumatoid factors. In chimpanzees, the mean AST was 68 +/- 29 in absorbed and 87 ASU +/- 57 in non-absorbed sera. Anti-DNase B was raised in three animals, and in two cases the increase was correlated with raised AST. Of 19 chimpanzee sera examined, 13 were found to contain antigammaglobulins ("rheumatoid factors") the titers of which reached 1:64 or more. All primate sera tested so far showed haptoglobin type 1-1 or Hp 1-1-like patterns. The haptoglobin level in chimpanzees and baboons was comparable to that established in man; in rhesus monkey, on the other hand, much lower values (40-62 mg/100 ml) or ahaptoglobinemia were observed. The sera of all monkeys and apes tested so far showed a very low (undiluted, or up to 1:10 titer at most) agglutinating activity against T4-antigen-carrying streptococci. This is in agreement with our observations made previously which indicated that human or animal sera of haptoglobin type 1-1 agglutinated streptococci to a much lower degree than type Hp 2-2 or type Hp 2-1 sera.

Animals↗

Production of antibodies to human immunoglobulins in a gibbon.

Immunization of a chimpanzee, a gibbon, a baboon and a rhesus monkey with human globulins gave different results. While chimpanzees did not produce any anti-human antibodies, baboon and rhesus monkey responded by producing anti-human IgG antibodies that did not show subclass or allotype specificity. In the gibbon antiserum, on the other hand, six different antibodies were demonstrated with a specificity against one or more of the four human IgG subclasses, including one allotype. Comparative investigations of non-human primate species sera showed that one of the specificities detected by these antibodies, i.e., the allotype G1m(f), was restricted to man; the other five antibodies reacted with man and with two or more genera of apes. Lower primates did not share any of these antigenic determinants. The extent of immunological distance is parallel to the taxonomic classification. The gibbon shows that there are more similarities between man and chimpanzee or pygmy chimpanzee than between man and gorilla or orangutan.

Animals↗

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↗

Rh antibodies produced by an isoimmunized chimpanzee; reciprocal relationship between chimpanzee simian-type isoimmune sera and human anti-Rho reagents.

An isoimmune chimpanzee serum was found to contain, in addition to expected antibodies of the simian-type specificity anti-Lc, a fraction of anti-Rho specificity, as proved by parallel tests with standard human anti-Rho sera as well as by absorption experiments using human and chimpanzee red cells. On the other hand, the two human anti-Rho sera tested in parallel were found to contain not only antibodies of specificity anti-Rho but also antibodies capable of detecting Lc specificity on the chimpanzee red cells. The reciprocal relationship between human and chimpanzee isoimmune sera constitutes the first example of symmetrical cross-reactivity between closely related species. The new source of anti-Rho reagents is expected to contribute additional information on the human Rh-Hr blood group system.

Animals↗

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↗

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↗

Chimpanzee simian-type blood groups: reproducibility of formerly described antisera and demonstration of new blood groups Oc and Pc1.

A chimpanzee of simian-type blood groups V.A, cef, G, H, L was isoimmunized with the red cells of another chimpanzee of simian-type V.B, cef, G, H, 1 in order to obtain antibodies of specificity anti-Bc, originally produced in another chimpanzee in 1964. In addition to the desired anti-Bc, the immunized chimpanzee produced also three other antibodies; anti-Yc cross-reactive with chimpanzee red cells of the simian-type Bc and/or Dc, a potent cold autoantibody reactive for red cells of all chimpanzees tested, and 'new' antibodies anti-Oc and anti-Pc. This study confirms the reproducibility of results obtained over a period of 13 years.

Animals↗

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↗

Blood groups of the mantled howler monkey (Alouatta palliata).

Fifty-two howler monkeys were tested for their human-type A-B-O blood groups. All were group B, as shown by the presence of B and H in their saliva, and anti-A in serum. The B-like agglutinogen of their red cells is common to all New World monkey species tested, and is of different origin and significance than their true A-B-O blood group. Differences among the B-like agglutinogens of the red cells of howler monkeys, marmosets, rabbits and humans group B were demonstrated, and limited tests have also been performed to study the biochemical basis of the anti-B reactions.

ABO Blood-Group System↗

Blood groups of bonnet macaques (Macaca radiata), with a brief introduction to seroprimatology.

The human-type A-B-O blood groups of 52 bonnet macaques (Macaca radiata) were determined. Application of method of population genetics indicated the gene frequences to be 0 = 0.173, a = 0.480 and B = 0.347. Cross testing of sera and red cells of the bonnet macaques revealed two blood-type-specific isoagglutinins, one of them strong enough for use as a blood typing reagent. No blood group polymorphism was revealed by testing bonnet macaque red cells with isoantisera produced in rhesus monkeys (M. mulatta) and in crab-eating macaques (M. fascicularis). The rhesus and crab-eating macaque isoantisera reacted either with all or with none of the bonnet macaque red cells tested.

ABO Blood-Group System↗

Spontaneously occurring agglutinins in primate sera.

Tests for spontaneously occurring agglutinins in the sera of nonhuman primates showed that such antibodies are not infrequent. Some act as heteroagglutinins, others as autoagglutinins, while of most interest are the isoagglutinins, especially those found in female animals apparently resulting from isoimmunization in pregnancy.

Agglutinins↗

The first isoimmune blood group system of rhesus monkeys (Macaca mulatta): the graded Drh system.

The simian-type blood group specificity Drh of rhesus monkeys, first described in 1967, has been proved to be the keystone of a rhesus monkey blood group system, holding a position comparable to that of Rho in the Rh-Hr system. Unlike the Rh-Hr system, however, it does not react well by the ficinated red cell technique and it includes a series of antigens giving graded reactions comparable to those of the human A1-A2 subgroups. The antigens of the Drh system appear to be the most strongly immunogenic, and are thus of greatest importance for the experimental use of these animals, such as in transplantation and blood transfusion.

Animals↗