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  • 1
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 144, No. 23 ( 2021-12-07), p. 1845-1855
    Kurzfassung: Despite advances in surgery and pharmacotherapy, there remains significant residual ischemic risk after coronary artery bypass grafting surgery. Methods: In REDUCE-IT (Reduction of Cardiovascular Events With Icosapent Ethyl–Intervention Trial), a multicenter, placebo-controlled, double-blind trial, statin-treated patients with controlled low-density lipoprotein cholesterol and mild to moderate hypertriglyceridemia were randomized to 4 g daily of icosapent ethyl or placebo. They experienced a 25% reduction in risk of a primary efficacy end point (composite of cardiovascular death, myocardial infarction, stroke, coronary revascularization, or hospitalization for unstable angina) and a 26% reduction in risk of a key secondary efficacy end point (composite of cardiovascular death, myocardial infarction, or stroke) when compared with placebo. The current analysis reports on the subgroup of patients from the trial with a history of coronary artery bypass grafting. Results: Of the 8179 patients randomized in REDUCE-IT, a total of 1837 (22.5%) had a history of coronary artery bypass grafting, with 897 patients randomized to icosapent ethyl and 940 to placebo. Baseline characteristics were similar between treatment groups. Randomization to icosapent ethyl was associated with a significant reduction in the primary end point (hazard ratio [HR], 0.76 [95% CI, 0.63–0.92] ; P =0.004), in the key secondary end point (HR, 0.69 [95% CI, 0.56–0.87]; P =0.001), and in total (first plus subsequent or recurrent) ischemic events (rate ratio, 0.64 [95% CI, 0.50–0.81]; P =0.0002) compared with placebo. This yielded an absolute risk reduction of 6.2% (95% CI, 2.3%–10.2%) in first events, with a number needed to treat of 16 (95% CI, 10–44) during a median follow-up time of 4.8 years. Safety findings were similar to the overall study: beyond an increased rate of atrial fibrillation/flutter requiring hospitalization for at least 24 hours (5.0% vs 3.1%; P =0.03) and a nonsignificant increase in bleeding, occurrences of adverse events were comparable between groups. Conclusions: In REDUCE-IT patients with a history of coronary artery bypass grafting, treatment with icosapent ethyl was associated with significant reductions in first and recurrent ischemic events. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01492361.
    Materialart: Online-Ressource
    ISSN: 0009-7322 , 1524-4539
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2021
    ZDB Id: 1466401-X
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    In: Environmental Toxicology and Chemistry, Wiley, Vol. 42, No. 5 ( 2023-05), p. 1085-1093
    Kurzfassung: Elevated concentrations of potassium (K) often occur in effluents from wastewater treatment plants, oil and gas production operations, mineral extraction processes, and other anthropogenic sources. Previous studies have demonstrated that freshwater mussels are highly sensitive to K in acute and chronic exposures, and that acute toxicity of K decreases with increasing water hardness. However, little is known about the influence of hardness on the chronic toxicity of K. The objective of our study was to evaluate the chronic toxicity of K (tested as KCl) to a commonly tested unionid mussel (fatmucket, Lampsilis siliquoidea ) at five hardness levels (25, 50, 100, 200, and 300 mg/L as CaCO 3 ) representing most surface waters in the United States. Chronic 28‐day K toxicity tests were conducted with 3‐week‐old juvenile fatmucket in the five hardness waters using an ASTM International standard method. The maximum acceptable toxicant concentrations (geometric mean of the no‐observed‐effect concentration and the lowest‐observed‐effect concentration) increased from 15.1 to 69.3 mg K/L for survival and from 15.1 to 35.8 mg K/L for growth (length and dry wt) and biomass when water hardness was increased from 25 mg/L (soft) to 300 mg/L (very hard). These results provide evidence to support water hardness influence on chronic K toxicity to juvenile fatmucket. However, the chronic effect concentrations based on the more sensitive endpoint (growth or biomass) increased only 2.4‐fold from the soft water to the very hard water, indicating that water hardness had a limited influence on the chronic toxicity of K to the mussels. These results can be used to establish chronic toxicity thresholds for K across a broad range of water hardness and to derive environmental guideline values for K to protect freshwater mussels and other organisms. Environ Toxicol Chem 2023;42:1085–1093. Published 2023. This article is a U.S. Government work and is in the public domain in the USA.
    Materialart: Online-Ressource
    ISSN: 0730-7268 , 1552-8618
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2023
    ZDB Id: 2027441-5
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Online-Ressource
    Online-Ressource
    American Chemical Society (ACS) ; 2023
    In:  Environmental Science & Technology Letters Vol. 10, No. 3 ( 2023-03-14), p. 254-259
    In: Environmental Science & Technology Letters, American Chemical Society (ACS), Vol. 10, No. 3 ( 2023-03-14), p. 254-259
    Materialart: Online-Ressource
    ISSN: 2328-8930 , 2328-8930
    Sprache: Englisch
    Verlag: American Chemical Society (ACS)
    Publikationsdatum: 2023
    ZDB Id: 2745499-X
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    In: Environmental Toxicology and Chemistry, Wiley, Vol. 33, No. 10 ( 2014-10), p. 2246-2258
    Kurzfassung: Chronic toxicity of cadmium, copper, lead, or zinc to white sturgeon ( Acipenser transmontanus ) and rainbow trout ( Oncorhynchus mykiss ) was evaluated in water‐only exposures started with newly hatched larvae or approximately 1‐mo‐old juveniles. The 20% effect concentration (EC20) for cadmium from the sturgeon tests was higher than the EC20 from the trout tests, whereas the EC20 for copper, lead, or zinc for the sturgeon were lower than those EC20s for the trout. When the EC20s from the present study were included in compiled toxicity databases for all freshwater species, species mean chronic value for white sturgeon was in a relatively low percentile of the species sensitivity distribution for copper (9th percentile) and in the middle percentile for cadmium (55th percentile), zinc (40th percentile), or lead (50th percentile). However, the species mean chronic value for rainbow trout was in a high percentile for copper, lead, and zinc (∼68th–82nd percentile), but in a low percentile for cadmium (23rd percentile). The trout EC20s for each of the 4 metals and the sturgeon EC20s for cadmium or lead were above US Environmental Protection Agency chronic ambient water quality criteria (AWQC) or Washington State chronic water quality standards (WQS), whereas the sturgeon EC20s for copper or zinc were approximately equal to or below the chronic AWQC and WQS. In addition, acute 50% effect concentrations (EC50s) for copper obtained in the first 4 d of the chronic sturgeon test were below the final acute value used to derive acute AWQC and below acute WQS for copper. Environ Toxicol Chem 2014;33:2246–2258. Published 2014 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
    Materialart: Online-Ressource
    ISSN: 0730-7268 , 1552-8618
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2014
    ZDB Id: 2027441-5
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Elsevier BV ; 2020
    In:  Chemosphere Vol. 249 ( 2020-06), p. 126056-
    In: Chemosphere, Elsevier BV, Vol. 249 ( 2020-06), p. 126056-
    Materialart: Online-Ressource
    ISSN: 0045-6535
    RVK:
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2020
    ZDB Id: 1496851-4
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    In: Environmental Toxicology and Chemistry, Wiley, Vol. 39, No. 5 ( 2020-05), p. 1071-1085
    Kurzfassung: Elevated nitrate (NO 3 ) and sulfate (SO 4 ) in surface water are of global concern, and studies are needed to generate toxicity data to develop environmental guideline values for NO 3 and SO 4 . The present study was designed to fill existing gaps in toxicity databases by determining the acute and/or chronic toxicity of NO 3 (tested as NaNO 3 ) to a unionid mussel ( Lampsilis siliquoidea ), a midge ( Chironomus dilutus ), a fish (rainbow trout, Oncorhynchus mykiss ), and 2 amphibians ( Hyla versicolor and Lithobates sylvaticus ), and to determine the acute and/or chronic toxicity of SO 4 (tested as Na 2 SO 4 ) to 2 unionid mussels ( L. siliquoidea and Villosa iris ), an amphipod ( Hyalella azteca ), and 2 fish species (fathead minnow, Pimephales promelas and O. mykiss ). Among the different test species, acute NO 3 median effect concentrations (EC50s) ranged from 189 to 〉 883 mg NO 3 ‐N/L, and chronic NO 3 20% effect concentrations (EC20s) based on the most sensitive endpoint ranged from 9.6 to 47 mg NO 3 ‐N/L. The midge was the most sensitive species, and the trout was the least sensitive species in both acute and chronic NO 3 exposures. Acute SO 4 EC50s for the 2 mussel species (2071 and 2064 mg SO 4 /L) were similar to the EC50 for the amphipod (2689 mg SO 4 /L), whereas chronic EC20s for the 2 mussels (438 and 384 mg SO 4 /L) were 〉 2‐fold lower than the EC20 of the amphipod (1111 mg SO 4 /L), indicating the high sensitivity of mussels in chronic SO 4 exposures. However, the fathead minnow, with an EC20 of 374 mg SO 4 /L, was the most sensitive species in chronic SO 4 exposures whereas the rainbow trout was the least sensitive species (EC20  〉  3240 mg SO 4 /L). The high sensitivity of fathead minnow was consistent with the finding in a previous chronic Na 2 SO 4 study. However, the EC20 values from the present study conducted in test water containing a higher potassium concentration (3 mg K/L) were 〉 2‐fold greater than those in the previous study at a lower potassium concentration (1 mg K/L), which confirmed the influence of potassium on chronic Na 2 SO 4 toxicity to the minnow. Environ Toxicol Chem 2020;39:1071–1085. © 2020 SETAC
    Materialart: Online-Ressource
    ISSN: 0730-7268 , 1552-8618
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2020
    ZDB Id: 2027441-5
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    In: Environmental Toxicology and Chemistry, Wiley, Vol. 37, No. 12 ( 2018-12), p. 3050-3062
    Kurzfassung: Freshwater mussels are generally underrepresented in toxicity databases used to derive water quality criteria, especially for long‐term exposures. Multiple tests were conducted to determine the chronic toxicity of sodium chloride (NaCl) or potassium chloride (KCl) to a unionid mussel (fatmucket, Lampsilis siliquoidea ). Initially, a 4‐wk NaCl test and a 4‐wk KCl test were conducted starting with 2‐mo‐old mussels in water exposures with and without a thin layer of sand substrate. A feeding study was conducted later to refine test conditions for longer‐term 12‐wk exposures, and 3 chronic NaCl tests were then conducted following the refined method to assess the influence of test duration (4–12 wk) and age of organisms (starting age ∼1 wk to 2 mo) on mussel sensitivity. Biomass (total dry wt of surviving mussels in a replicate) was generally a more sensitive endpoint compared to survival and growth (length and dry wt). In the 4‐wk NaCl or KCl test started with 2‐mo‐old juveniles, a 20% effect concentration (EC20) based on biomass (264 mg Cl/L from the NaCl test or 8.7 mg K/L from the KCl test) in the exposure with sand was 2‐fold lower than the EC20 in the exposure without sand. The longer‐term 12‐wk NaCl tests started with the 1‐wk‐old and 2‐mo‐old juveniles were successfully completed under refined test conditions based on the feeding study, and younger juveniles were more sensitive to NaCl than older juveniles. The NaCl toxicity did not substantially change with extended exposure periods from 4 to 12 wk, although the 4‐wk EC20s for biomass were slightly greater (up to 37%) than the 12‐wk EC20s in the 2 longer‐term exposures. Including the toxicity data from the present study into existing databases would rank fatmucket the most sensitive species to KCl and the second most sensitive species to NaCl for all freshwater organisms. Environ Toxicol Chem 2018;37:3050–3062. Published 2018 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
    Materialart: Online-Ressource
    ISSN: 0730-7268 , 1552-8618
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2018
    ZDB Id: 2027441-5
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2005
    In:  Journal of Nursing Care Quality Vol. 20, No. 1 ( 2005-01), p. 1-4
    In: Journal of Nursing Care Quality, Ovid Technologies (Wolters Kluwer Health), Vol. 20, No. 1 ( 2005-01), p. 1-4
    Materialart: Online-Ressource
    ISSN: 1057-3631
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2005
    ZDB Id: 2053488-7
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    In: Environmental Toxicology and Chemistry, Wiley, Vol. 35, No. 1 ( 2016-01), p. 115-127
    Kurzfassung: The acute and chronic toxicity of sulfate (tested as sodium sulfate) was determined in diluted well water (hardness of 100 mg/L and pH 8.2) with a cladoceran ( Ceriodaphnia dubia ; 2‐d and 7‐d exposures), a midge ( Chironomus dilutus ; 4‐d and 41‐d exposures), a unionid mussel (pink mucket, Lampsilis abrupta ; 4‐d and 28‐d exposures), and a fish (fathead minnow, Pimephales promelas ; 4‐d and 34‐d exposures). Among the 4 species, the cladoceran and mussel were acutely more sensitive to sulfate than the midge and fathead minnow, whereas the fathead minnow was chronically more sensitive than the other 3 species. Acute‐to‐chronic ratios ranged from 2.34 to 5.68 for the 3 invertebrates but were as high as 12.69 for the fish. The fathead minnow was highly sensitive to sulfate during the transitional period from embryo development to hatching in the diluted well water, and thus, additional short‐term (7‐ to 14‐d) sulfate toxicity tests were conducted starting with embryonic fathead minnow in test waters with different ionic compositions at a water hardness of 100 mg/L. Increasing chloride in test water from 10 mg Cl/L to 25 mg Cl/L did not influence sulfate toxicity to the fish, whereas increasing potassium in test water from 1 mg K/L to 3 mg K/L substantially reduced the toxicity of sulfate. The results indicate that both acute and chronic sulfate toxicity data, and the influence of potassium on sulfate toxicity to fish embryos, need to be considered when environmental guidance values for sulfate are developed or refined. Environ Toxicol Chem 2016;35:115–127. Published 2015 SETAC. This article is a US Government work and is in the public domain in the United States.
    Materialart: Online-Ressource
    ISSN: 0730-7268 , 1552-8618
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2016
    ZDB Id: 2027441-5
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Online-Ressource
    Online-Ressource
    Springer Science and Business Media LLC ; 2016
    In:  Archives of Environmental Contamination and Toxicology Vol. 70, No. 2 ( 2016-2), p. 321-331
    In: Archives of Environmental Contamination and Toxicology, Springer Science and Business Media LLC, Vol. 70, No. 2 ( 2016-2), p. 321-331
    Materialart: Online-Ressource
    ISSN: 0090-4341 , 1432-0703
    Sprache: Englisch
    Verlag: Springer Science and Business Media LLC
    Publikationsdatum: 2016
    ZDB Id: 185986-9
    ZDB Id: 1458449-9
    Standort Signatur Einschränkungen Verfügbarkeit
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