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Toxicología
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Hongos venenosos
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8161Publicado 1978“…Measurement of increments in ionized calcium as a function of load confirmed earlier reports of buffering in normal and FCCP- and (or) CN-poisoned axons. Measurement of rates of calcium uptake by presumed mitochondria showed little uptake at ambient Ca below 200--400 nM, with sigmoidal rise to about 20--30 mumol/kg axoplasm per min (calculated to be about 200 mmol/kg mitochondrial protein per min) at 50 micrometer, indicating a functional threshold for presumed mitochondrial uptake well above physiological ionized calcium concentration. …”
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8162“…These results suggest that compounds that interact simultaneously with the TOPRIM motif and the molecular surface around the active site tyrosine could be highly efficient topoisomerase poisons through both enhancement of DNA cleavage and inhibition of DNA rejoining.…”
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8163por Tse-Dinh, Yuk-Ching“…Topoisomerase I targeting poisons may be particularly effective when the bacterial pathogen is responding to host defense, or in the presence of other antibiotics that induce the bacterial stress response.…”
Publicado 2009
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8164“…We have previously shown that overexpression of TPPII correlates with chromosomal instability, centrosomal and mitotic spindle abnormalities and resistance to apoptosis induced by spindle poisons. Furthermore, TPPII knockdown by RNAi was associated with endoreplication and the accumulation of polynucleated cells that failed to complete cell division, indicating a role of TPPII in the cell cycle. …”
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8165“…RESULTS: The 5 leading causes of death in Tianjin were cardiovascular disease, cerebrovascular disease, malignant neoplasm, chronic lower respiratory disease, and injuries and poisoning. Mortality in Tianjin declined from 0.60% in 1999 to 0.48% in 2004. …”
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8166“…Botulinum toxin, one of the most poisonous biological substances known, is a neurotoxin produced by the bacterium Clostridium botulinum. …”
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8167por Gentry, Amanda C., Juul, Sissel, Veigaard, Christopher, Knudsen, Birgitta R., Osheroff, Neil“…We suggest that these compounds act by altering the perceived topological state of the double helix, making underwound DNA appear to be overwound to the enzyme, and propose that these compounds be referred to as ‘topological poisons of topoisomerase I’.…”
Publicado 2011
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8168por Kelly, Terra R., Bloom, Peter H., Torres, Steve G., Hernandez, Yvette Z., Poppenga, Robert H., Boyce, Walter M., Johnson, Christine K.“…Predatory and scavenging birds may be exposed to high levels of lead when they ingest shot or bullet fragments embedded in the tissues of animals injured or killed with lead ammunition. Lead poisoning was a contributing factor in the decline of the endangered California condor population in the 1980s, and remains one of the primary factors threatening species recovery. …”
Publicado 2011
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8169por Ceríaco , Luis MP, Marques, Mariana P, Madeira, Natália C, Vila-Viçosa, Carlos M, Mendes , Paula“…It was also discovered that locals still have some misconceptions of geckos as poisonous and carriers of dermatological diseases. …”
Publicado 2011
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8170“…Recognition of bitter taste and aversion to it are thought to protect the organism against the ingestion of poisonous food compounds, which are often bitter. Interestingly, bitter taste receptors are expressed not only in the mouth but also in extraoral tissues, such as the gastrointestinal tract, indicating that they may play a role in digestive and metabolic processes. …”
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8171por Hawtin, Rachael Elizabeth, Stockett, David Elliot, Wong, Oi Kwan, Lundin, Cecilia, Helleday, Thomas, Fox, Judith Ann“…The quinolone-based scaffold differentiates vosaroxin from the anthracyclines and anthracenediones, broadly used DNA intercalating topoisomerase II poisons. Here we report that vosaroxin induces a cell cycle specific pattern of DNA damage and repair that is distinct from the anthracycline, doxorubicin. …”
Publicado 2010
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8172por Jambaninj, D., Sulaiman, Syed Azhar Syed, Gillani, Syed Wasif, Davaasuren, T. S., Erdenetsetseg, G., Dungerdorj, D.“…Cacalia hastata L. is widely used for the Mongolian traditional medicine to treat wound healing, gastric ulcer, poisoning fever, liver fever, bile fever, oral cavity, and gynecological diseases. …”
Publicado 2012
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8173“…Kupeelu (Strychnos nux-vomica Linn.) commonly known as nux vomica is a poisonous plant used extensively in various ayurvedic formulations, with great therapeutic significance. …”
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8174“…SAgs have been classically associated with food poisoning and toxic shock syndrome (TSS), for which these toxins are the causative agent. …”
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8175“…The results indicate a tendency towards less health care utilization among migrants, especially men, as regards Symptoms, signs, and ill-defined conditions and Injury and poisoning. Further studies are needed to explore the possible explanations and the pattern of other diseases to see whether migrants, and especially migrant men, are a risk group with less utilization of health care.…”
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8176por Hanana, Houda, Talarmin, Hélène, Pennec, Jean-Pierre, Droguet, Mickael, Morel, Julie, Dorange, Germaine“…Okadaic acid (OA) is one of the main diarrhetic shellfish poisoning toxins and a potent inhibitor of protein phosphatases 1 and 2A. …”
Publicado 2012
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8177por Tominaga, Keiichiro, Izumi, Manabu, Suzukawa, Masayuki, Shinjo, Takafumi, Izawa, Yoshimitsu, Yonekawa, Chikara, Ano, Masaki, Yamashita, Keisuke, Muronoi, Tomohiro, Mochiduki, Reiko“…We could successfully manage takotsubo cardiomyopathy resulted in circulatory failure in a patient with glufosinate poisoning for suicide attempt. Takotsubo cardiomyopathy should be taken into consideration if circulatory failure is observed for unexplained reasons.…”
Publicado 2012
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8178por Guillemet, Elisabeth, Tran, Seav-Ly, Cadot, Céline, Rognan, Didier, Lereclus, Didier, Ramarao, Nalini“…Bacillus cereus is a Gram-positive spore-forming bacterium causing food poisoning and serious opportunistic infections. These infections are characterized by bacterial accumulation despite the recruitment of phagocytic cells. …”
Publicado 2013
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8179por Levine, Timothy P., Daniels, Rachel D., Gatta, Alberto T., Wong, Louise H., Hayes, Matthew J.“…Although a plausible mechanism for disease is that aberrant C9ORF72 mRNA poisons splicing, it is important to determine the cellular function of C9ORF72, about which nothing is known. …”
Publicado 2013
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8180“…This could also help to prevent health problems associated with NH poisoning. In addition, apicultural practices and the economic importance of honey are well documented. …”
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