Results 31 to 40 of about 91,371 (267)

Endocytosis and Digestion in Carnivorous Pitcher Plants of the Family Sarraceniaceae

open access: yesPlants, 2019
Highly evolved carnivorous plants secrete digestive enzymes for degradation of trapped animals and absorb whole macromolecules from their prey by means of endocytosis.
Marianne Koller-Peroutka   +5 more
doaj   +1 more source

Ultrastructure of a craniopharyngioma [PDF]

open access: yesCancer, 1971
A craniopharyngioma removed at surgery was examined by light and electron microscopy. The tumor consisted of both solid and cystic components. The cells lining the cysts, as well as those forming the solid masses, displayed desmosomes, tonofilaments, keratohyalin granules, and keratinization identical to those seen in the epidermis.
N R, Ghatak, A, Hirano, H M, Zimmerman
openaire   +2 more sources

Evaluation of metal contamination effects in piranhas through biomonitoring and multi biomarkers approach

open access: yesHeliyon, 2020
The present field study aimed to assess the water quality of the Itacaiúnas River, located at the eastern part of the Brazilian Amazon, using water's physicochemical parameters, ecological risk assessment in sediments, biomarkers and metal ...
Caroline da Silva Montes   +4 more
doaj   +1 more source

Lamina Cell Shape and Cell Wall Thickness Are Useful Indicators for Metal Tolerance—An Example in Bryophytes

open access: yesPlants, 2021
Bryophytes are widely used to monitor air quality. Due to the lack of a cuticle, their cells can be compared to the roots of crop plants. This study aimed to test a hypothetical relation between metal tolerance and cell shape in biomonitoring mosses ...
Katharina Petschinger   +3 more
doaj   +1 more source

Oxidative stress mediated by gyrophoric acid from the lichen Umbilicaria hirsuta affected apoptosis and stress/survival pathways in HeLa cells

open access: yesBMC Complementary and Alternative Medicine, 2019
Background Lichens produce a huge diversity of bioactive compounds with several biological effects. Gyrophoric acid (GA) is found in high concentrations in the common lichen Umbilicaria hirsuta, however evidence for biological activity was limited to ...
Michal Goga   +6 more
doaj   +1 more source

Diethylcarbamazine Reduces Chronic Inflammation and Fibrosis in Carbon Tetrachloride- (CCl4-) Induced Liver Injury in Mice

open access: yesMediators of Inflammation, 2014
This study investigated the anti-inflammatory effects of DEC on the CCl4-induced hepatotoxicity in C57BL/6 mice. Chronic inflammation was induced by i.p. administration of CCl4 0.5 μL/g of body weight through two injections a week for 6 weeks. DEC (50 mg/
Sura Wanessa Santos Rocha   +9 more
doaj   +1 more source

Beneficial Effects of Capybara Oil Supplementation on Steatosis and Liver Apoptosis in Obese Mice

open access: yesJournal of Obesity
Obesity is a complex chronic disease characterized by excess body fat (adipose) that is harmful to health and has been a major global health problem.
Luciana Lontro Alves   +12 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

open access: yesFEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

New Data on Nephron Microanatomy and Ultrastructure of Senegal Bichir (Polypterus senegalus)

open access: yesBiology, 2022
This study presents new data on the microanatomy and ultrastructure of Polypterus senegalus nephrons. It was shown that the diameter and ultrastructure of renal corpuscles, a well-developed neck segment, and ultrastructure of two types of epithelial ...
Ekaterina Aleksandrovna Flerova   +1 more
doaj   +1 more source

Ultrastructure of the esthesioneuroblastoma [PDF]

open access: yesCancer, 1976
A tumor in the anatomic location and with the light microscopic appearance of an esthesioneuroblastoma was examined with the electron microscope. Secretory-type granules, cytoplasmic fibrils, and microtubules similar to those described in neuroblastomas were found in many of the tumor cells, which supports an origin from the sympathetic autonomic ...
R Y, Osamura, G, Fine
openaire   +2 more sources

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