Results 21 to 30 of about 225,866 (281)

The Role of Reactive Oxygen Species (ROS) in the Formation of Extracellular Traps (ETs) in Humans

Biomolecules, 2015
Extracellular traps (ETs) are reticulate structures of extracellular DNA associated with antimicrobial molecules. Their formation by phagocytes (mainly by neutrophils: NETs) has been identified as an essential element of vertebrate innate immune defense.
Walter Stoiber, Astrid Obermayer, Peter Steinbacher, Wolf-Dietrich Krautgartner   +3 more
doaj   +1 more source

Follicular complex may predict reproductive tactics in siluriform fishes

Heliyon, 2023
In this study, we evaluated the morphology and morphometry of the layers that make up the follicular complex surrounding mature oocytes in the six fish species Auchenipterichthys longimanus, Ageneiosus ucayalensis, Hypophthalmus marginatus, Baryancistrus
Ivana Kerly S. Viana, Maria Auxiliadora P. Ferreira, Yanne A. Mendes, Breno Richard M. Silva, Liziane A.B. Gonçalves, Rossineide M. Rocha   +5 more
doaj   +1 more source

Freeze/thaw stress induces organelle remodeling and membrane recycling in cryopreserved human mature oocytes [PDF]

, 2016
Purpose: Our aim was to evaluate the ultrastructure of human metaphase II oocytes subjected to slow freezing and fixed after thawing at different intervals during post-thaw rehydration.
Albani, E., Borini, A., Coticchio, G., Levi Setti, P. E., Lorenzo, C., Macchiarelli, G., NOTTOLA, Stefania Annarita, Palmerini, M. G., Scaravelli, G.   +8 more
core   +1 more source

Plasmolysis: Loss of Turgor and Beyond

Plants, 2014
Plasmolysis is a typical response of plant cells exposed to hyperosmotic stress. The loss of turgor causes the violent detachment of the living protoplast from the cell wall. The plasmolytic process is mainly driven by the vacuole.
Ingeborg Lang, Stefan Sassmann, Brigitte Schmidt, George Komis   +3 more
doaj   +1 more source

Endocytosis and Digestion in Carnivorous Pitcher Plants of the Family Sarraceniaceae

Plants, 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, Stefanie Krammer, Anselm Pavlik, Manfred Edlinger, Ingeborg Lang, Wolfram Adlassnig   +5 more
doaj   +1 more source

Ultrastructure Organization of Human Trabeculae Assessed by 3D sSAXS and Relation to Bone Microarchitecture. [PDF]

PLoS ONE, 2016
Although the organization of bone ultrastructure, i.e. the orientation and arrangement of the mineralized collagen fibrils, has been in the focus of research for many years for cortical bone, and many models on the osteonal arrangement have been proposed,
Marios Georgiadis, Manuel Guizar-Sicairos, Oliver Gschwend, Peter Hangartner, Oliver Bunk, Ralph Müller, Philipp Schneider   +6 more
doaj   +1 more source

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

Heliyon, 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, Maria Auxiliadora Pantoja Ferreira, Tommaso Giarrizzo, Lílian Lund Amado, Rossineide Martins Rocha   +4 more
doaj   +1 more source

Contribution of microscopy for understanding the mechanism of action against trypanosomatids [PDF]

, 2018
Transmission electron microscopy (TEM) has proved to be a useful tool to study the ultrastructural alterations and the target organelles of new antitrypanosomatid drugs.
A Martinez-Palomo, A Montalvetti, A Rassi, AB Penissi, AE Eakin, AH Kolien, AJ Solari, AM Sánchez, Ana Yecê das Neves Pinto, C Brack, CF Silva Da, D Gonzalez-Pacanowska, DA Campbell, DA Johnston, DJ Hammond, DV Andrade, E Bontempi, E Lozano, E Lozano, E Lozano, EO Ogbadoiyi, ES Garcia, ES Lozano, F Dos Reis, FR Opperdoes, FR Opperdoes, FR Opperdoes, FS Laranja, H Meyer, H Meyer, J Aldunate, J Lukes, J McKerrow, J Mottram, JA Urbina, JA Urbina, JA Urbina, JA Urbina, JC Engel, JC Linder, JCP Dias, JCP Dias, JD Bergstrom, JD Maya, JF Turrens, JJ Marr, JL Avila, JL Avila, Juliano de Toledo, K Lazardi, K Miranda, K Miranda, KH Lee, L Simpson, LV Muschietti, M Meirelles, M Nieto, MC Elias, MCQB Elias, MR Ariyanayagam, MR Ariyanayagam, NM Sayed El, O Campetella, OS Giordano, OS Giordano, P Barrera, P Webster, PF Pimenta, R Docampo, S Sepúlveda-Boza, SD Brengio, SR Wilkinson, T Souto-Padron, T Souto-Padron, T Souto-Padron, T Souto-Padron, TA Shapiro, TS Tiuman, V Jimenez-Ortiz, V Sülsen, VP Sülsen, VP Sülsen, VV Costantino, W Souza De, W Souza De, W Souza De, W Souza De, W Souza De, W Souza De, Wanderley de Souza, WE Gutteridge   +90 more
core   +1 more source

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

Plants, 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, Wolfram Adlassnig, Marko S. Sabovljevic, Ingeborg Lang   +3 more
doaj   +1 more source

Cryotomography of budding influenza a virus reveals filaments with diverse morphologies that mostly do not bear a genome at their distal end [PDF]

, 2013
Influenza viruses exhibit striking variations in particle morphology between strains. Clinical isolates of influenza A virus have been shown to produce long filamentous particles while laboratory-adapted strains are predominantly spherical.
A Ali, A Harris, A Moeller, A Smirnov Yu, BE Eddy, BJ Chen, C Loney, C Scholtissek, CJ Elleman, CM Chu, Colin Loney, D McGeoch, David Bhella, David Jackson, DN Mastronarde, E Fournier, Frazer J. Rixon, GL Ada, I Archetti, JR Gog, JR Kremer, JS Rossman, JS Rossman, KB Renegar, L Hoyle, L Liljeroos, LJ Calder, LM Burleigh, M Adrian, P Palese, PC Roberts, PC Roberts, Peter Palese, R Arranz, RA Lamb, RA Lamb, RW Compans, RW Ruigrok, Swetha Vijayakrishnan, T Noda, T Noda, TA Bharat, V Doceul, Worawit Suphamungmee, Y Fujii, Y Geng   +45 more
core   +3 more sources