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H E Kaiser

Publications and source records attributed to H E Kaiser.

At least 19 recordsLinked to original sources
PubMed1994

Comparative aspects of neoplastic invasion of the brain.

This review of the invasion of the human brain by tumors is based upon a comparative approach. The taxonomic distribution of a structure of the CNS to be considered a brain is present in the following taxonomic groups: Mollusca (Cephalopoda, Pulmonata) Sipunculida, Echiurida, Annelida, Arthropoda and Vertebrata (fishes, amphibians, reptiles, birds and mammals). The comparative approach (inter-, and intraspecies specific) provides a more informative, indicative, understanding of invasion of the human brain; especially in view of the morphological and functional heterogeneity of structures playing a role in the neoplastic invasion to and from the brain. It can be distinguished among primary invasiveness (as cancer in situ) and local recurrence on the one hand and remote spreading, such as metastasis, on the other. A review of the recent literature arranged according to tumor types is provided and comparative conclusions elucidated, especially to underline the tumor specificity of the invasion of brain tumors, especially the second or intra-species specific approach is therapeutically important. This is set forth against a background of epidemiology and species specificity. Due to the lack of bony skull capsule an extensive knowledge of the brain of cephalopod molluscs with its functional and morphological similarity to the human eye, and also that of the pulmonate Helix pomatia, the vineyard snail, could well serve as excellent oncologic models. Some conclusions can be drawn dealing with the theoretical possibility of first appearance of the different and heterogeneous components of the complicated structure known as brain including its supporting accessory organs during phylogeny.

Animals↗
PubMed1985

Functional comparative histology. 5. Communication: History of histology.

The present author gives a survey on the development of microscopy by centuries: 16th Invention of the simple microscope--at the end of the century the compound microscope was invented. 17th HOOKE's microscope was the leading of this century--binocular microscope--introduction of screw fine adjustment. 18th The first microscope in America came to Yale in 1734. CHARLES SPENCER started to manufacture microscopes at the continent in 1847. 19th Establishment of precondition for electron microscopy. ZEISS introduced apochromatic optics. The Royal Microscopical Society was established in 1858. The American Microscopical Society in 1878, The New York Microscopical Society in 1877. 20th 1906 invention of the ultraviolet microscope, 1911 of the fluorescence microscope, 1931 of the electron microscope, the first American in 1938, 1932 the centrifuge microscope, 1932 the phase contrast microscope. The first American phase contrast microscope in 1944, 1942 phosphorescence microscope, in the 1950th the interference and x-ray microscopes.

Histological Techniques↗
PubMed1985

Functional comparative histology. 1. Communication: comparative and functional aspects of histology.

Comparative histology demonstrates the different ways through which a function can be performed by one or more structures. The functional approach offers the widest comparison, much wider than any morphologic comparison would be able to do. The function adds the physiological and biochemical approach to the picture. Histochemistry bridges the gap between both, the comparative and functional aspect, as well as tissue and organ culture. The tissues show a variation in their phylogenetic age of appearance and taxonomic distribution. Comparative functional histology is a basic science of the various biological disciplines. Comparative functional histology is also a basic pillar of experimental pathology. The functional frame of comparative histology has been outlined. The following communications of the series listed below will give a detailed description of special aspects of comparative functional histology.

Animal Population Groups↗
PubMed1985

Functional comparative histology. 2. Communication: organismic taxonomy (plant and animal taxonomy).

The historic development of the taxonomy of the animals and plants has been briefly reviewed. The new taxonomy of the six-kingdom approach offers an improved recognition of the taxonomy of organisms with true or with pseudotissues than that of older taxonomy. Table 5 contains a brief description of the Histonia animalia and Histonia plantae and of several prototypes of incomplete tissue development, as well as of the fungi with plectenchymata. Special emphasis is placed upon the macroscopic and histologic characteristics of each taxonomic group. It is also the purpose of the tables to offer the reader of this and especially of future communications a brief, succinct review of the taxa under consideration. The communication on taxa outlined briefly the development of taxonomy of organisms since the times of ancient Greece. To this review, survey of modern taxonomy, with important histologic and other characteristics of the taxa of the Histonia, is added. The new six-kingdom approach reflects more accurately the cellular and histologic conditions in the phyla of the Histonia. In the higher fungi, the plectenchymata are seen; in the highest rhodophyta and phaeophyta, the cauloid, rhizoid and other plant pseudotissues develop. At a somewhat higher phylogenetic stage, there belong the pseudotissues of bryophyta. In comparison to cormophyta, the same holds true for the rather primitive tissue development of bryophyta. They are not directly comparable to the tissues of the highest porifera exhibiting the lowest animal tissues. Metaphyta from the plant kingdom without cell differentiation such as the highest brown algae, partially growing with apical meristems, which reach a length of 120 m, hence belong to the largest plants. By way of contrast, the multicellular animals lower than the Porifera and belonging to the phyla Placozoa and Mesozoa are only a few millimeters in size. Finally, the focus (centre) of the Histonia is represented by those species with true tissues, the Histonia animalia or Eumetazoans and the Histonia plantae, vascular plants, or Tracheophyta. The borderlines are fluid and opinions differ. It would also be possible to consider the pseudotissues of the Rhodophyta, Phaeophyta, and Bryophyta as morphologically lower counterparts of the true tissues of the vascular plants (Tracheophyta) and to consider only the plectenchymata, developing through coalescence and interweaving as non-true or pseudotissues.(ABSTRACT TRUNCATED AT 400 WORDS)

Animal Population Groups↗
PubMed1985

Functional comparative histology. 4. Communication: Viability of organismic tissues.

It is the purpose of the communication to outline the viability of organismic tissues using selected examples for continued and catastrophic development, variation in the species specific life span, in the species specific size, metabolism, and different characteristics of cellular renewal from a species specific view. Finally, the application of tissue viability to medical research and clinical therapy was approached. It is the author's belief that a broader application of species specific facts to medicine would be an advantage to enhance our understanding of basic life processes and simultaneously human medicine.

Animals↗
PubMed1978

The respiratory epithelium. III. Histogenesis of epidermoid metaplasia and carcinoma in situ in the human.

The histogenesis of epidermoid metaplasia and carcinoma in situ was analyzed in human bronchial epithelium. The conclusion is that epidermoid metaplasia and carcinoma in situ can result from conversion of mucous cells. This implies the direct transformation of one type of fully differentiated cell to another. The study therefore emphasizes the differentiation potentialities of the mucous cells that can divide and undergo goblet cell hyperplasia and epidermoid metaplasia. Epidermoid metaplasia is a common reaction to injury in the bronchus. In our series of cases it was especially frequent in patients without neoplastic disease who had undergone intratracheal intubation or tracheostomy and who had been maintained on a respirator in the Shock Trauma Unit, University of Maryland. Future studies will be required to distinguish the difference, if any, between epidermoid metaplasia destined to become malignant carcinoma and that which is not. One difference noted in this study was the absence of overt cornification in epidermoid metaplasia in patients without neoplastic disease.

Bronchi↗