News Release on Pesticides Research: September-2018

The More Pesticides Bees Eat, The More They Like Them

Bumblebees acquire a style for pesticide-laced food as they become a lot of exposed thereto, a behavior showing doable symptoms of addiction.

This study of humblebee behavior indicates that the danger of pesticide-contaminated food coming into bee colonies could also be beyond antecedently thought, which might have impacts on colony generative success.

In analysis printed these days in Proceedings of the Royal Society B, a team from Imperial faculty London and Queen Virgin Mary University of London (QMUL) have shown that humblebee colonies progressively take advantage of pesticide-laced food (sugar solution) over time. [1]

Modulation of Immune Response by Organophosphate Pesticides: Mammals as Potential Model

Organophosphates (OPs) square measure most generally used pesticides and primarily induce toxicity by inhibition of acetylcholinesterase (AChE) within the nerve terminals of central and peripheral system, resulting in a spread of short and chronic effects within the non-target animals. additionally to acetylcholinesterase, Ops square measure proverbial to potent inhibitors of amino acid hydrolases that square measure very important element of the system and thus influence the immune functions. Ops induce many immunomodulatory effects in vertebrates by sterilization leucocyte operate, scavenger cell production, protein production, immunological disorder, reduced lymphokine production and T lymphocyte proliferation. Immunotoxicity thanks to OP exposure is mediate through perturbation of the cholinergic response of lymphocytes, sterilization signal transduction, mutilating grain exocytosis pathway and impairing FasL/Fas pathway of natural T cell and different immune connected cells. [2]

Maternal Use of Household Pesticides during Pregnancy and Risk of Childhood Brain Tumor and Neuroblastoma in the Offspring

Background/Aim: Childhood neoplasm (CBT) and metastatic tumor (NB) square measure 2 of the foremost common solid tumors in childhood. Their etiologies stay still unknown, however, the first age at onset suggests that events throughout the perinatal amount or infancy might have a task. prenatal exposure to pesticides is also one such issue. The aim of this study was to explore whether or not there’s AN association between maternal use of menage pesticides throughout the physiological state and also the risk of NB or CBT within the kid. [3]

Investigation of Novel Pesticides with Insecticidal and Antifungal Activities: Design, Synthesis and SAR Studies of Benzoylpyrimidinylurea Derivatives

In order to search out pesticides with insecticidal and antifungal activities, a series of novel benzoyl pyrimidinylurea derivatives were designed and synthesized. All target compounds were known by 1H-NMR chemical analysis and HRMS. The insecticidal and antifungal activity of those compounds were evaluated and therefore the structure-activity relationships (SAR) were clearly and comprehensively illustrated. [4]

Assessment of Herbicides and Pesticides Residues in Gella Surface Water

Presence of pesticides residues in ponds and earth dam waters of Gella city employed by the community as a method of water supply was assessed. Water samples were collected in triplicates and residual pesticides determined mistreatment high-performance liquid action (HPLC) techniques. The study showed presence of residual organochlorine, aside from beta-BHC not detected in Tagore lake one (P01), Tagore lake two (P02), Girmana’a lake (P04), and Kurbaca lake (P05); dieldrin and heptachlor weren’t detected in P04 and P05; and heptachlor epoxide wasn’t detected in P01, P02, and P04. Chlorpyriphos and dichlorvos were detected altogether water samples. Dieldrin wasn’t detected in Bogga earth dam (ED) and P01. [5]

Reference

[1] The More Pesticides Bees Eat, The More They Like Them

August 28, 2018 (web link)

[2] Modulation of Immune Response by Organophosphate Pesticides: Mammals as Potential Model

Mitra A, Sarkar M, Chatterjee C. Modulation of Immune Response by Organophosphate Pesticides: Mammals as Potential Model. InProceedings of the Zoological Society (pp. 1-12). Springer India. (web link)

[3] Maternal Use of Household Pesticides during Pregnancy and Risk of Childhood Brain Tumor and Neuroblastoma in the Offspring

Bailey HD, Vidart N, Rios P, Lacour B, Orsi L, Clavel J. Maternal Use of Household Pesticides during Pregnancy and Risk of Childhood Brain Tumor and Neuroblastoma in the Offspring. IEEE Conference Abstracts 2018 Feb 1. (web link)

[4] Investigation of Novel Pesticides with Insecticidal and Antifungal Activities: Design, Synthesis and SAR Studies of Benzoylpyrimidinylurea Derivatives

Chen P, Song X, Fan Y, Kong W, Zhang H, Sun R. Investigation of Novel Pesticides with Insecticidal and Antifungal Activities: Design, Synthesis and SAR Studies of Benzoylpyrimidinylurea Derivatives. Molecules. 2018 Aug 31;23(9):2203. (web link)

[5] Assessment of Herbicides and Pesticides Residues in Gella Surface Water

Ismaila Yada Sudi1*

1Department of Biochemistry, Adamawa State University, P.M.B. 25, Mubi, Adamawa State, Nigeria. (web link)

Leave a Reply

Your email address will not be published. Required fields are marked *