[Macular corneal dystrophy including histologic and ultrastructural changes].

Purpose: The study reports the results of a histological and ultrastructural examination of the corneal button, obtained during penetrating keratoplasty from patient with clinically recognized macular corneal dystrophy.

Material And Methods: 34-year-old male patient suffering from macular corneal dystrophy (MCD) has been treated on corneal epithelium defect and photophobia since his early childhood. Visual acuity was decreased on the Snellen test chart to 0.

Cellular viability and ultrastructure of stented, antibiotic sterilized and cryopreserved sheep biological valves implanted for one year in tricuspid position.

Unlabelled: The aim of the study was an evaluation of viability and damage of biological cells sterilized with antibiotics and cryopreserved a year after the implantation. Sheep antibiotic sterilised and cryopreserved biological valves were implanted in tricuspid position in young sheeps for one-year period. After this time the valves removed and studied morphologically.

[Asphyxiating thoracic dysplasia (Jeune's Syndrome) in 15-years-old boy--6 years of observation].

Asphyxiating thoracic dysplasia (Jeune's Syndrome) is a genetically determined dysplasia of thoracic bones usually leading to death during intrauterine life or in early childhood. Other osseous dysplasias as well as renal, hepatic and pancreatic failure may coexist with Jeune's syndrome. About one hundred cases of the syndrome were reported till now.

Influence of alternating extremely low frequency ELF magnetic field on structure and function of pancreas in rats.

The aim of this study was to estimate the influence on ultrastructure and function of endocrine and excretoric part of pancreas in rats of extremely low frequency alternating magnetic fields with parameters used in therapy in humans. The animals from the two experimental groups were exposed to a rectangular magnetic field waveform at a frequency of 10 Hz and induction of 1.8-3.

[Fetal hypotrophy: morphological pictures of placenta in light and electron microscopy of female residents of the Czenstochow region].

The 16 afterbirths samples obtained from pregnancies complicated by idiopathic fetal hypotrophy was examined. The criteria of hypotrophy were established: the duration of gestation above 36 weeks, the birth-weight was less than 2500 g. The control group included 8 afterbirth samples from physiological full-term pregnancies.