Hans Wilhelm Barz

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Galanthamine, physostigmine and 9-amino-1,2,3,4-tetrahydroacridine (tacrine) were evaluated as inhibitors of human acetylcholinesterase activity from samples of postmortem human brain, fresh brain cortex biopsies and human erythrocytes. Acetylcholinesterase activity was most effectively inhibited in all tissues by physostigmine, followed by tacrine and(More)
8 cases were studied to determine whether immunohistochemical investigation with anti-GFAP could contribute to confirming a primary brain tumor origin for an extracranial metastasis. The materials studied consisted of 3 glioblastomas, 3 anaplastic astrocytomas, and 2 medulloblastomas, along with their extracranial metastases. GFAP could be(More)
The frequency of haematogenous and lymphogenous metastases from 5,708 cancers of various types, confirmed on autopsies, decreased nearly continuously beyond the age of 60. Cases without metastases are found three times more in senility than in younger people. The decrease of tumor metastasis in elderly people is nearly the same for all kinds of cancers. In(More)
Post-mortem brain regions of schizophrenics were investigated in comparison to matched controls regarding synaptosomal K(+)-stimulated [3H]DA release and its modulation by DA autoreceptors. Brain specimens were cryopreserved in liquid nitrogen until release experiments; synaptosomes from brain pieces preincubated with dimethylsulfoxide have unchanged(More)
  • H Barz
  • 1983
88 meningiomas were found among 8,371 autopsies. 29 meningiomas were associated with extraneural primary malignancies. In 4 cases a carcinoma metastasized into a meningioma. This unexpected high frequency of carcinomas metastasizing into meningiomas could be an accidental event. The preferential occurrence of meningiomas in females and the disposition of(More)
The present study reports the age specific prevalence rate of tumors in autopsies of the years 1958--1969, registered in the Medical Academy "Carl Gustav Carus" Dresden. The results refer to the total of all malignant tumors, to several tumor sites as well as to multiple simultaneous tumors. In many neoplasms highest prevalence occurs in presenile age(More)
The arterial distensibility and the modulus of volume elasticity of more than 100 isolated human carotid arteries was measured and correlated with arteriosclerosis and aging. The loss of arterial distensibility progresses steadily with aging. Arteries with severe arteriosclerosis and arteries with minimal arteriosclerosis show almost similar distensibility.(More)
UNLABELLED An image processing system for morphological investigation of liver cell nuclei in biopsy specimens is demonstrated. The present study deals with the age dependence of normal hepatic nuclear areas. The results were compared with those of conventional methods. MATERIAL AND METHODS The image processing system consists of a microscope, an image(More)
  • H Barz, B Beck
  • 1983
A case report with pleural mesothelioma, asbestosis and silicosis after long time exposure to talc dust has been given. Pathological findings, professional exposure, diagnostic aspects, and medical assessment of disablement are described. The relationship between the diseases of lungs and the professional exposure to talc dust as well as the possibility of(More)