The present study examined the efficacy of Ocimum basilicum extract, a natural herb, with antioxidant properties, against testicular toxicity induced by Lead, which is one of the most important toxic heavy metals. The intoxicated rats showed decreased cell proliferation was reflected by a decrease in Ki-67 expression, whereas the increase in apoptotic rate was associated with a decrease in the ...

The interaction of immunological system, thyroid and pineal gland was studied in 5-week old males of Gallus domesticus. Several morphometrical parameters in pineal and thyroid glands were measured after bird immunization with human red blood cells and/or treatment with melatonin or seduxen, melatonin receptor blocker. The peak of the thyroid activity was found on Day 7 after immunization. The i...

The aim of the present study was analyze, by histological and morphometrical studies, mandibular glands of Melipona bicolor queens collected from monogynic and polygynic colonies and compare their level of development. The results showed that the glands ofphysogastric queens from monogynic colony present a higher level of activity in relation to the queens of polygynic colonies; this is explain...

Parastacus brasiliensis promatensis subsp. n. is described from São Francisco de Paula, Rio Grande do Sul, Brazil. The animals were collected at an elevation of 850 m, representing the first record of Parastacidae at high altitude in Brazil. Subspecies recognition was performed through the analysis of morphometrical characters. Discriminant analysis was applied to compare P. brasiliensis promat...

This paper describes the occurrence of digenetic Rhipidocotyle santanaensis Lunaschi, 2004 in Brazil. This parasite was found in the liver, heart, gonads, intestine, pyloric caeca, stomach, swim bladder and cavity of Acestrorhynchus lacustris (Lütken, 1875) from the Batalha River, São Paulo State, with higher incidence in gonads and digestive tract. The parasite specimens found in this study sh...

Ichnology deals with the traces of prehistoric organisms and thus with the study of dinosaur footprints and tracks. This paper reports on a reliable and precise methodology developed to integrate high-resolution close range photogrammetry and range sensors for 3D surveys of dinosaur footprints. The 3D footprint and track models recovered here yield a great deal of accurate morphological and mor...

We carried out ultrastructural morphometrical and immunocytochemical analyses on pancreatic acinar cell nuclei from mice fed on genetically modified (GM) soybean, in order to investigate possible structural and molecular modifications of nucleoplasmic and nucleolar constituents. We found a significant lowering of nucleoplasmic and nucleolar splicing factors as well as a perichromatin granule ac...

OBJECTIVE To report the morphometric characteristics of ultrastructure inside A549 cells. METHODS A549 cells were processed for inverted microscopy and transmission electron microscopy (TEM). Cell images were obtained randomly using inverted microscopy and TEM. The morphometric parameters of ultrastructure were tested using precise morphometric techniques by Image-Pro Plus analysis software. ...

To clarify the strain differences in the morphology of the rat kidneys, we investigated the morphometrical characteristics of the kidneys of Slc:Wistar, Slc:SD, and F344/NSlc rats. The diameter of the renal corpuscles in female F344/N rats is smaller than that in female Wistar rats. Although sex differences (males>females) were shown in SD and F344/N rats, no effects of castration were detected...

Histological changes were studied in 34 senile cataractous lenses removed surgically from patients aged 50 to 78 years. Sixty-eight percent had nuclear sclerosis, 44% swollen cells and morgagnian globular changes, 23% calcium deposition, 15% migration of epithelial cells beneath posterior capsule and villous projection in posterior in 7%. Several cases had more than one histological abnormality...