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Prediction of mono-, bi-, and trivalent metal cation relative toxicity to the seaweed Gracilaria domingensis (Gracilariales, Rhodophyta) in synthetic seawater.
Mendes LF, Zambotti-Villela L, Yokoya NS, Bastos EL, Stevani CV, Colepicolo P. Mendes LF, et al. Among authors: colepicolo p. Environ Toxicol Chem. 2013 Nov;32(11):2571-5. doi: 10.1002/etc.2340. Epub 2013 Sep 6. Environ Toxicol Chem. 2013. PMID: 23908020
A model for predicting the toxicity of 14 metal cations was developed using the generic function approximation algorithm (GFA) with log IC50F values as the dependent variables and the following properties as independent variables: ionic radius (r), atomic number (AN), electronega …
A model for predicting the toxicity of 14 metal cations was developed using the generic function approximation algorithm (GFA) with log IC50 …
The interplay between thiol-compounds against chromium (VI) in the freshwater green alga Monoraphidium convolutum: toxicology, photosynthesis, and oxidative stress at a glance.
Takami R, Almeida JV, Vardaris CV, Colepicolo P, Barros MP. Takami R, et al. Among authors: colepicolo p. Aquat Toxicol. 2012 Aug 15;118-119:80-87. doi: 10.1016/j.aquatox.2012.03.018. Epub 2012 Apr 3. Aquat Toxicol. 2012. PMID: 22522782
Regarding photosynthesis effects, Cr(VI) concentrations >1.0 mg/L showed significant increases in short-term (after 2 h) electron transfer rates (ETR) and quantum yields of photosystem II (phi(PSII)), followed by subsequent decline of both parameters after 48 and 72 h. …
Regarding photosynthesis effects, Cr(VI) concentrations >1.0 mg/L showed significant increases in short-term (after 2 h) electron …
Long-term intermittent feeding, but not caloric restriction, leads to redox imbalance, insulin receptor nitration, and glucose intolerance.
Cerqueira FM, da Cunha FM, Caldeira da Silva CC, Chausse B, Romano RL, Garcia CC, Colepicolo P, Medeiros MH, Kowaltowski AJ. Cerqueira FM, et al. Among authors: colepicolo p. Free Radic Biol Med. 2011 Oct 1;51(7):1454-60. doi: 10.1016/j.freeradbiomed.2011.07.006. Epub 2011 Jul 21. Free Radic Biol Med. 2011. PMID: 21816219 Free article.
Short-term calorie restriction and intermittent feeding presented similar results relative to glucose tolerance. Surprisingly, long-term intermittent feeding promoted glucose intolerance, without a loss in insulin receptor phosphorylation. ...
Short-term calorie restriction and intermittent feeding presented similar results relative to glucose tolerance. Surprisingly, long- …
Biochemical biomarkers in algae and marine pollution: a review.
Torres MA, Barros MP, Campos SC, Pinto E, Rajamani S, Sayre RT, Colepicolo P. Torres MA, et al. Among authors: colepicolo p. Ecotoxicol Environ Saf. 2008 Sep;71(1):1-15. doi: 10.1016/j.ecoenv.2008.05.009. Epub 2008 Jul 2. Ecotoxicol Environ Saf. 2008. PMID: 18599121 Review.
Monitoring the impact of pollutants on aquatic life forms is challenging due to the differential sensitivities of organisms to a given pollutant, and the inability to assess the long-term effects of persistent pollutants on the ecosystem as they are bio-accumulated at high …
Monitoring the impact of pollutants on aquatic life forms is challenging due to the differential sensitivities of organisms to a given pollu …
Kinetic study of the plastoquinone pool availability correlated with H2O2 release in seawater and antioxidant responses in the red alga Kappaphycus alvarezii exposed to single or combined high light, chilling and chemical stresses.
Barros MP, Necchi O Jr, Colepicolo P, Pedersén M. Barros MP, et al. Among authors: colepicolo p. Biochim Biophys Acta. 2006 Nov;1757(11):1520-8. doi: 10.1016/j.bbabio.2006.06.006. Epub 2006 Jun 17. Biochim Biophys Acta. 2006. PMID: 16904624 Free article.
These data suggest that the release of H(2)O(2) from plastids into seawater possibly impaired efficient and immediate responses of pivotal H(2)O(2)-scavenging activities of CAT and APX in the red alga K. alvarezii, culminating in short-term exacerbated levels of protein an …
These data suggest that the release of H(2)O(2) from plastids into seawater possibly impaired efficient and immediate responses of pivotal H …
Effects of microcystins on human polymorphonuclear leukocytes.
Kujbida P, Hatanaka E, Campa A, Colepicolo P, Pinto E. Kujbida P, et al. Among authors: colepicolo p. Biochem Biophys Res Commun. 2006 Mar 3;341(1):273-7. doi: 10.1016/j.bbrc.2005.12.177. Epub 2006 Jan 18. Biochem Biophys Res Commun. 2006. PMID: 16414024
The effect of MCs on PMN provides support for a damage process mediated by PMN and oxidative stress, and may explain liver injury and tumour promotion associated to long-term MCs exposures....
The effect of MCs on PMN provides support for a damage process mediated by PMN and oxidative stress, and may explain liver injury and tumour …
Induction of oxidative stress in the red macroalga Gracilaria tenuistipitata by pollutant metals.
Collén J, Pinto E, Pedersén M, Colepicolo P. Collén J, et al. Among authors: colepicolo p. Arch Environ Contam Toxicol. 2003 Oct;45(3):337-42. doi: 10.1007/s00244-003-0196-0. Arch Environ Contam Toxicol. 2003. PMID: 14674586
Heavy metals are environmental pollutants that have the potential to induce severe stress-reactions in organisms on land as well as in the sea. We have studied effects of short term sublethal concentrations of copper (Cu2+) and cadmium (Cd2+) on the reactive oxygen metabol …
Heavy metals are environmental pollutants that have the potential to induce severe stress-reactions in organisms on land as well as in the s …
Epithelial macrophages secrete a deactivating factor for superoxide release.
Camarero VC, Junqueira VB, Colepicolo P, Karnovsky ML, Mariano M. Camarero VC, et al. Among authors: colepicolo p. J Cell Physiol. 1990 Dec;145(3):481-7. doi: 10.1002/jcp.1041450313. J Cell Physiol. 1990. PMID: 2177060
When coverslips were removed after 14 days of implantation and the cells incubated for 30 minutes in vitro, the medium so conditioned inhibited O2- release by cells of 5 day old preparations. This indicates the release by cells on the longer term coverslips of a substance …
When coverslips were removed after 14 days of implantation and the cells incubated for 30 minutes in vitro, the medium so conditioned inhibi …