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PubMed1982

Mycobacterium bovis isolated from a dusky langur with granulomas in the intestine.

Tubercles were seen in the spleen of a male dusky langur (Presbytis obscurus) on laparotomy. Subsequently, tuberculous lesions in the intestine, lungs, and a hilar lymph node were observed on necropsy of the monkey. Histologic examinations of these tissues revealed granulomas, and acid-fast bacilli were observed within granulomas in replicate sections that were stained with auramine-O. An acid-fast organism was isolated and identified as Mycobacterium bovis. Guinea pigs and rabbits inoculated intraperitoneally with the organism developed granulomas in the lungs, liver, and spleen. Lesions did not develop in chickens inoculated with the culture.

Animals↗
PubMed1982

How many sections must be measured in order to reconstruct the volume of a structure using serial sections?

When reconstructing the volumes of organs, or other individual bodies, the areas of these structures are usually determined with the help of serial sections and the volume thus estimated. The actual number of serial sections that have to be taken into account, whilst arranging such a study, is of great importance. This present paper shows that about 20 equidistant sections are sufficient in order to determinate the volume, even that of extremely irregular formed bodies, whereby the error will not exceed 5%.

Adrenal Glands↗
PubMed1981

[Sublingual structures in primates. Part 1: Prosimiae, Platyrrhini and Cercopithecinae].

1. The sublingual structures of primates have been studied light-microscopically. There are 3 different sublingual structures in the species studied. The plica sublingualis occurs in all primates. The sublingual organ is a topographically modified plica sublingualis which occurs exclusively in Callicebus. A sublingua is present only in the prosimians. 2. The plica sublingualis contains the excretory ducts of the submandibular and sublingual salivary glands. The sublingua is ventrally adherent to the body of the tongue and is, with a few exceptions in Tupaia, characterized by a skeleton of cartilage tissue. A sublingua never exhibits excretory ducts or salivary glands. 3. In some Platyrrhini (Ateles, Aotus, Lagothrix, Alouatta, Callicebus), there are taste buds in the epithelium of the plica sublingualis. They are especially concentrated near the orifices of the salivary glands. 4. The fresh saliva of the submandibular and sublingual gland can be tested by the taste buds on the plica sublingualis, because there is a topographical coincidence. 5. There is a complete absence of taste buds at the plica sublingualis of the prosimians and the Cercopithecinae. 6. There are no taste buds in the epithelium of the sublingua. In the Lorisiformes and in the Lemuriformes the sublingua is a cleaning device of the anterior dentition, most probably in connection with a tactile sensibility. In the Tupaiformes and in the Tarsiiformes the sublingua is less developed. 7. There is no anatomical connection between the skeleton of cartilage tissue in the sublingua and the lytta, or the skeleton of the hyoideum. 8. In some Cercopithecinae (Macaca, Papio) a glandula apicis linguae is present.

Animals↗
PubMed1982

[Evolutionistic significance of biological form-function relationship based on the example of the shoulder-blade in higher primates. II. Form and function, goal and random factor: literature].

The shoulder-blades of the monkeys are mainly constructed as a shock-absorbing platform, supporting the weight of the torso, which is hung up between the 2 forelegs in a muscle sling, composed by the M. serratus ventralis. The mobility of the arms are of less importance, although this mobility is more developed in monkeys than in other quadrupedal mammals. The shoulder-blades of the hominoids are freed from the supporting function and are mainly constructed for the mobility of the arms. Therefore all the areas are well developed, where the important arm-moving muscles originate. The constructions of the catarrhine shoulder-blades are in a very close accordance with the function. Under the modern viewpoint of scientific evolutionary theory the relation between form and function is causal and is developing in the time-space continuum. It can be shown that the thinking in categories of time, space and causality is inadequate for the understanding of the evolutionary process. The hazardness which plays an important role in the neo-darwinistic modell, where mutations occur, has to bee replaced by synchronistic phenomena. Therefore the facts of live refer empirically to the existence of the "One-beeing". According to this, evolution occurs as a psycho-physical process, which is experiencable by synchronistic phenomena in archetypical moments as a reference to a reality, which is feeling its way in a finalistic manner.

Adaptation, Physiological↗
PubMedDate not supplied

Preparation of type-specific antimyosin antibodies and determination of their specificity by biochemical and immunohistochemical methods.

This paper reports the preparation of specific anti-slow myosin antibodies (anti-I) and anti-fast myosin antibodies (anti-IIA) raised against myosins from sheep and guinea pig masseter muscles. The specificity of the antibodies has been studied by immunodiffusion in agar and by the GEDELISA test using slow-twitch (type I), fast-twitch red (type IIA) and fast-twitch white (type IIB) myofibrils isolated from guinea pig muscles. The principal specificity of the anti-I and anti-IIA antibodies was for the heavy chains of type I and IIA myosins, respectively. A smaller reaction with the corresponding light chains was also detected. Immunohistochemical staining of muscle sections using these antibodies confirmed their fibre type specificity.

Animals↗
PubMed1980

Chromosomal evolution of 19 species of sub-species of Cercopithecinae.

Chromosome analysis by handling techniques of 19 species and sub-species of Cercopithecinae shows an important accumulation of chromosome rearrangements (51). With a clear predominance of fissions (26) and of inversions (17). It is impossible to reconstruct a simple genealogy of these species because chromosomal evolution did not follow the principle of a strict dichotomy. The progressive increase of the number of chromosomes, by fission, corresponds to the inverse of the Robertsonian evolution and suggests the existence of numerous interstitial centromeres and telomeres.

Animals↗
PubMed1982

Chromosomal phylogeny of forty-two species or subspecies of cercopithecoids (Primates Catarrhini).

After comparison of the chromosomes of 42 species or subspecies belonging to Cercopithecinae, Papioninae and Colobidae, a phylogeny based on the sequence of chromosomal rearrangements is proposed for Cercopithecoidea. From their last common ancestor, which possessed 46 chromosomes, a trifurcation gave 3 branches, very unequal as regards chromosomal rearrangements. One, very short, leads to Papioninae. Another, still poorly known, leads to Colobidae. The last branch leads to a further bifurcation, separating 2 groups of Cercopithecinae, with underwent the most active chromosomal evolution. A tentative to reconcile chromosomal, biochemical and morphological data is presented for Papioninae, for which chromosome study alone is not sufficient to construct a cladogram.

Animals↗
PubMed1982

Nutritional problems in cats: taurine deficiency and vitamin A excess.

Two nutritional problems of the cat are reviewed. One represents a deficiency of taurine, the other vitamin A toxicity. Taurine deficiency in cats is insidious because the progressive retinal degeneration induced may go unnoticed until the damage is advanced and irreversible. Both rods and cones undergo degeneration along with the underlying tapetum lucidum. The hyperreflective focal lesion is easily observed in the area centralis with an ophthalmoscope and has been previously identified as feline central retinal degeneration. This lesion is not reversed by taurine supplementation, even though the remaining retina may be saved from further degeneration. The cat requires dietary taurine, found in meat and fish, because it cannot synthesize enough to meet demands for bile acid conjugation and tissue metabolism, especially those of muscle and central nervous system. Vitamin A toxicity is not commonly observed in cats but may occur if cats are fed beef liver in which appreciable vitamin A is stored. Cats exhibit muscle soreness and hyperesthesia, especially along the neck and forelimbs where bony exostoses of cervical verterbrae and longbones are common. The diagnosis is readily made from radiographs. The response to removal of vitamin A from the diet is generally rapid and, unless the toxicity has been chronic in young kittens, recovery is generally satisfactory.

Animal Nutritional Physiological Phenomena↗
PubMed1982

Leprosy.

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Animals↗
PubMed1982

The binding of staphylococcal protein A by the sera of different animal species.

The capacity of purified immunoglobulin or serum to bind (125I)-labeled staphylococcal protein A (SPA) was measured by means of an immunofiltration assay that facilitated the examination of large numbers of sera and required only a minute quantity of each. Sera from 80 species, including humans, laboratory animals, domestic animals, and a variety of African mammals were examined. A wide interspecies variation in the SPA-binding capacity of serum immunoglobulins was confirmed. Only small variations were observed among individuals within the same species with one notable exception. A greater than 10,000-fold variation in SPA-binding capacity was observed among sera from nine goats. Interspecies differences in serum SPA-binding capacity correlated well with taxonomic differences, and the serum SPA-binding capacity correlated well with taxonomic differences, and the serum SPA-binding capacities of African mammals corresponded closely to those of their more common relatives. The sensitivity of antibody detection by indirect (125I)SPA immunoassay was shown to be determined mostly by the SPA-binding capacity of the serum examined. The titer of antibody to influenza A/Texas/1/77(H3N2) virus in sera from several different species, when measured by (125I)SPA immunofiltration assay, was directly proportional to the SPA-binding capacity of the serum and was not proportional to the hemagglutination inhibition titer. An (125I)SPA immunofiltration assay for antibody to Lassa virus in the serum of Mastomys natalensis (which binds SPA only one-thousandth as well as human serum) was at least as sensitive as the standard fluorescent antibody assay.

Adult↗
PubMed1982

The organization of a microsurgical unit.

The organization of a microsurgery unit at experimental and clinical levels is of major importance. Microsurgery can be applied in every surgical specialty, and with and advent of microvascular surgery its role is steadily expanding, especially as regards all types of reconstructive surgery. The main aim is to provide a community service, but some experimental background is advantageous. It is not easy to introduce microsurgical practice into an institution where none of this work has been performed previously. The reorganization of surgical units is involved, and some operations are impossible without an operating microscope. A tenacity of purpose among surgeons and dedication by both teaching and technical staff is essential. Not every surgeon will wish to engage in this work but eventually it can be expected that grounding in microsurgery will become a routine part of the training of most surgeons. Although experimental research is important, the emphasis should be on clinical development.

Animals↗