scholarly journals Long term ultrastructural changes in human corneas after tattooing with non-metallic substances

1999 ◽  
Vol 83 (2) ◽  
pp. 219-224 ◽  
Author(s):  
W. Sekundo ◽  
P. Seifert ◽  
B. Seitz ◽  
K. U Loeffler
Keyword(s):  
Ultrastructural Changes

scholarly journals Long term evaluation of morphometric and ultrastructural changes of testes of alloxan-induced diabetic rats

2013 ◽  
Vol 28 (4) ◽  
pp. 256-265 ◽  
Author(s):  
Amélia Arcângela Teixeira Trindade ◽  
Antônio Caetano Pereira Simões ◽  
Reinaldo José Silva ◽  
Célia Sperandeo Macedo ◽  
César Tadeu Spadella
Keyword(s):  
Diabetic Rats ◽  
Ultrastructural Changes ◽  
Term Evaluation

HISTOLOGICAL AND ULTRASTRUCTURAL CHANGES IN THE PARS DISTALIS OF THE RABBIT PITUITARY IN ORGAN CULTURE

1974 ◽  
Vol 60 (1) ◽  
pp. 155-NP ◽  
Author(s):  
S. PATHAK ◽  
A. FISK
Keyword(s):  
Organ Culture ◽  
Granular Cell ◽  
Common Type ◽  
Ultrastructural Changes ◽  
Pars Distalis ◽  
Prolactin Cells ◽  
Dna And Rna ◽  
Intranuclear Rodlets ◽  
Maximum Proportion

SUMMARY Typical histological and ultrastructural changes that occur in the pars distalis of the rabbit pituitary after different periods of organ culture are described. The best technique for the maintenance of the maximum proportion of the explant was assessed by comparing cultures grown under different conditions. Explants in air with a medium buffered with N-2-hydroxyethylpiperazine-N1-2-ethanesulphonic acid (HEPES), not previously used in organ culture, proved more satisfactory than explants in carbogen with bicarbonate-buffered 199, and cultures were maintained for more than 3 weeks. The survival of cells was assessed on the basis of their cytological integrity; DNA- and RNA-fluorescence with acridine orange was a valuable indicator. Prolactin cells, which were few in uncultured controls, became the most common type of granular cell in long-term cultures. Cell modifications during culture included the development of a peripheral epithelioid layer and the appearance of numerous microvilli. Microfibrils, coated or smooth vesicles, lytic bodies, desmosomes and intranuclear rods became more common and intranuclear rodlets (fibrous or membranous structures) were identified. Cells often became more electron dense during long-term culture. Though there was an increase in the number of agranular cells during culture, identifiable granules were retained by many cells throughout culture.

Long-Term Administration of Ciprofloxacin as the Cause of Ultrastructural Changes in the Liver and Disturbance of Its Functional Balance

2008 ◽  
Vol 14 (S2) ◽  
pp. 1616-1617
Author(s):  
W Matysiak ◽  
B Jodłowska-Jedrych ◽  
E Kifer-Wysocka ◽  
J Romanowska-Sarlej ◽  
K Czerny
Keyword(s):  
New Mexico ◽  
Ultrastructural Changes ◽  
Functional Balance ◽  
Term Administration

Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008

scholarly journals Ultrastructural Changes in the Placenta of the Ewe after Long-Term Intravascular Infusion of 2-Bromo-α-Ergocryptine (CB154) into Mother or Fetus

1979 ◽  
Vol 64 (4) ◽  
pp. 253-262 ◽  
Author(s):  
K. C. Lowe ◽  
N. F. G. Beck ◽  
Denise C. McNaughton ◽  
C. A. M. Jansen ◽  
A. L. Thomas ◽  
...  
Keyword(s):  
Ultrastructural Changes

scholarly journals MORPHOLOGYCAL CHANGES IN THE TESTES OF EXPERIMENTAL ANIMALS IN CHRONIC ALCOHOL POISONING

2021 ◽  
Vol 10 (4) ◽  
pp. 5-9
Author(s):  
А. А. Babanin ◽  
V. S. Ulanov
Keyword(s):  
Morphological Changes ◽  
Alcoholic Beverages ◽  
Ultrastructural Changes ◽  
Chronic Alcohol ◽  
Internal Organs ◽  
Experimental Animals ◽  
Chronic Effects ◽  
Partial Adaptation ◽  
Spermatogenic Epithelium

The experiment with the chronic effects of alcohol on experimental animals reflects the picture of long-term use of alcoholic beverages by a person with alcoholism. It is impossible to fully study the ultrastructural changes in internal organs, including the reproductive system, in humans, both in acute and chronic alcohol consumption, but the results obtained in the experiment can be extrapolated to humans. The results obtained showed that changes in the parenchymal-stromal elements of the testicles during chronic alcoholization are reduced to dystrophic transformation of the spermatogenic epithelium. The testicular stroma is characterized by pronounced circulatory disorders with plethora and stasis in the postcapillaries and small veins, edema, phenomena of perivascular and interstitial sclerosis, with foci of pronounced hyalinosis, most expressed by 2-3 months of alcoholism. By 6 months of the model experiment, there was no dynamics of the growth of morphological changes, partial adaptation to constant intoxication with ethyl alcohol.

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