Temat: deltamethrin - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Different approach to determination of pyrethroid pesticides in ornamental plants
Autorzy:: Zięba, Katarzyna
Miśkowiec, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/1076626.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: HPLC
QuEChERS
Rosa hybrid
cypermethrin
deltamethrin
rose petals
Opis:: The aim of the presented research was to develop and optimize a methodology, particularly dedicated for the quantification of pyrethroids in ornamental plant material on the basis of a rose (Rosa hybrid) with the use of HPLC chromatography and QuEChERS extraction method. High repeatability and reproducibility of the results were obtained by using acetonitrile as an eluent. The determined limits of detection and quantification for deltamethrin equal 5.2 ng and 9.3 ng per 1 cm3 of analysed solution respectively. For cypermethrin these values were: LOD 1.2 ng, LOQ 5.0 ng per 1 cm3 of solution. It has been shown that solutions of deltamethrin and cypermethrin are of high stability – they can be stored at room temperature for as long as 28 days without a change in the concentration. The experiments presented showed that the QuEChERS extraction of deltamethrin from the tested samples can be performed with efficiency above 93% using acetonitrile as a solvent, magnesium sulphate and sodium acetate as the separation salts. For purification Supel ™ QUE sorbent by Supelco was successfully applied. The described analytical method may be a valuable and relatively cheap tool to control the amounts of these pesticides sprayed in environment, wherever there is a suspicion of their excessive use.
Źródło:: World News of Natural Sciences; 2019, 27; 96-107
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Effect of Subacute Poisoning with Deltamethrin on the Levels of Interleukin 1ß and Tumour Necrosis Factor Α in the Livers and Kidneys of Mice
Wpływ podostrego zatrucia deltametryną na poziom interleukiny 1ß i czynnika α martwicy nowotworu w wątrobie i nerkach myszy
Autorzy:: Nieradko-Iwanicka, Barbara
Borzęcki, Grzegorz
Orłowski, Marcin
Powiązania:: https://bibliotekanauki.pl/articles/32696032.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
Tematy:: deltamethrin
interleukin 1ß
tumour necrosis factor α
deltametryna
interleukina 1ß
czynnik martwicy nowotworu α
Opis:: Deltamethrin is a type II pyrethroid. Deltamethrin’s action is characterised by nephrotoxicity, hepatotoxicity and immunotoxicity. The aim of the study was to evaluate the effect of poisoning with deltamethrin on the levels of interleukin1ß and TNFα in the livers and kidneys of mice. A total of 24 female mice were divided into 3 groups of 8: - controls, - receiving deltamethrin i.p. at the dose of 41.5 mg/kg for 28 days - receiving deltamethrin i.p. at the dose of 8.3 mg/kg for 28 days. On day 29 the animals were euthanised, livers and kidneys were obtained, homogenised and centrifuged. The supernatant was used for measuring IL-1ß and TNFα concentration with ELISA tests. The results were analysed with Statsoft Statistica. The interleukin 1ß concentrations were significantly higher in the kidneys (18.30±16.85) of mice exposed to the higher dose of deltamethrin than in the controls (8.15±4.66) (p<0.05). In the livers of mice receiving 41.5mg/kg deltamethrin it was 203±71.63 vs 46.77±34.79 (p<0.05). In the livers of animals receiving the lower dose it was higher than in the control group (96.51±24.73) (p<0.05). The TNF α was elevated in the kidneys of mice exposed to the higher dose of deltamethrin (6.56±3.26 vs 2.89±1.57)(p<0.05). Conclusion: Deltamethrin produces a significant increase of interleukin 1ß in the livers and kidneys of mice and so the cytokine seems to be a good marker of hepatotoxicity and nephrotoxicity in the course of subacute poisoning.
Deltametryna jest pyretroidem typu II. Działanie deltametryny charakteryzuje się nefrotoksycznością, hepatotoksycznością i immunotoksycznością. Celem pracy była ocena wpływu zatrucia deltametryną na poziom interleukiny1ß i TNFα w wątrobie i nerkach myszy. W badaniach 24 samice myszy podzielono na 3 grupy po 8: - kontrole, - otrzymywanie deltametryny i.p. w dawce 41,5 mg/kg przez 28 dni - deltametryna i.p. w dawce 8,3 mg/kg przez 28 dni. W 29 dniu zwierzęta zostały uśmiercone, pobrano wątroby i nerki, które następnie homogenizowano i odwirowano. Supernatant wykorzystano do pomiaru stężenia IL-1ß i TNFα za pomocą testów ELISA. Wyniki analizowano za pomocą Statsoft Statistica. Stężenia interleukiny 1ß były znacząco wyższe w nerkach (18,30±16,85) myszy narażonych na wyższą dawkę deltametryny niż u kontroli (8,15±4,66) (p<0,05). W wątrobach myszy otrzymujących 41,5 mg/kg deltamtehryny było to 203±71,63 vs 46,77±34,79 (p<0,05). W wątrobach zwierząt otrzymujących niższą dawkę była ona wyższa niż w grupie kontrolnej (96,51±24,73) (p<0,05). TNFα był podwyższony w nerkach myszy eksponowanych na wyższą dawkę deltametryny (6,56±3,26 vs 2,89±1,57) (p<0,05). Wniosek: Deltametryna powoduje znaczny wzrost interleukiny 1ß w wątrobie i nerkach myszy, dlatego cytokina wydaje się być dobrym markerem hepatotoksyczności i nefrotoksyczności w przebiegu zatrucia podostrego.
Źródło:: Polish Hyperbaric Research; 2021, 1(74); 61-66
1734-7009
2084-0535
Pojawia się w:: Polish Hyperbaric Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Field evaluation of plant extracts for the control of diamond moth (Plutella xylostella Linnaeus) infesting cabbage (Brassica oleracea Linn)
Autorzy:: Odewole, A.F.
Adebayo, T.A.
Powiązania:: https://bibliotekanauki.pl/articles/11513.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: field evaluation
plant extract
control
diamond back moth
Plutella xylostella
cabbage
Brassica oleracea
deltamethrin
Tephrosia vogelii
Zingiber officinale
Lantana camara
Opis:: Cabbage (Brassica oleracea Linn.) is one of the important vegetables grown worldwide. Insect pests have been a major constraint to its production with some reported to have developed resistance to commonly available synthetic insecticides. In order to find alternative control for these pests, field experiments were conducted in the early seasons of 2011 and 2012, to evaluate the efficacy of three plant extracts, Tephrosia vogelli Hooks, Zingiber officinales Rosh and Lantana camara Spanish flag, applied at 5, 10 and 25 % w/v concentrations Delthamethrin (a synthethic insecticide) and an unsprayed plot were included as positive and negative controls respectively. Plots were arranged in a Randomized Complete Block Design (RCBD), with three replications. Mean Data over the two planting seasons were subjected to the analysis of variance and significant means were compared using the least significant difference (L.S.D) at P < 0.05. Z. officinales extract effectively control P. xylostella larvae at all concentrations with 25 % w/v gave the best yield of 0.50 kg/ha while T. vogelii and L. camara extracts were as effective as Deltamethrin at different concentrations and hours on diamondback-moth (P. xylostella) adult The present findings indicated that effective botanicals against Diamondback moth adult and larvae of cabbage can be formulated from extract of T. vogelii, L. camara and Z. officinales at 25 % concentration respectively.
Źródło:: International Letters of Natural Sciences; 2014, 11, 2
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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