1
|
Tali A, Lekouch N, Ahboucha S. Lambda-cyhalothrin alters locomotion, mood and memory abilities in Swiss mice. Food Chem Toxicol 2024; 188:114680. [PMID: 38677402 DOI: 10.1016/j.fct.2024.114680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 04/09/2024] [Accepted: 04/18/2024] [Indexed: 04/29/2024]
Abstract
Lambda-cyhalothrin (LCT) is a type II pyrethroid widely used in agriculture for plant protection against pests. However, pyrethroids represents a risk for rural female farmworkers, and few studies addressed LCT-behavioural alterations in mice. The present study evaluates the effect of LCT on behaviour of eight weeks aged female mice. Mice were divided into three groups including treated mice that received through gavage (i) 0.5 mg/kg bw and (ii) 2 mg/kg of LCT dissolved in corn oil, and (iii) the vehicle controls. Behavioural tests assess the locomotor activity using open field test, the anxiety by the dark-light box test, the learning memory with novel object recognition test, the memory retention by the elevated plus maze test, and the spatial working memory using the Y-maze test. Subacute treatment with low doses of LCT decreases total distance travelled, induces anxiogenic effect by reducing the time spent in the enlightened compartment, alters memory retention by increasing the latency time, and also affects learning memory by reducing the recognition index parameter. However, LCT does not significantly alter spatial working memory. In conclusion, LCT-treated female mice show an alteration in locomotor activity, mood state and memory abilities probably related to oxidative stress and altered neurotransmission.
Collapse
Affiliation(s)
- Assmaa Tali
- Multidisciplinary Laboratory of Research and Innovation (MLRI), Research Team: Technological Applications, Environmental Resources and Health, Polydisciplinary Faculty of Khouribga, Sultan Moulay Slimane University, PB, 145-25000, Morocco
| | - Nadra Lekouch
- Laboratory of Water, Biodiversity and Climate Change, Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Bd: Moulay Abdellah, BP, 2390-40001, Marrakech, Morocco
| | - Samir Ahboucha
- Multidisciplinary Laboratory of Research and Innovation (MLRI), Research Team: Technological Applications, Environmental Resources and Health, Polydisciplinary Faculty of Khouribga, Sultan Moulay Slimane University, PB, 145-25000, Morocco.
| |
Collapse
|
2
|
Ouisselsat M, Maidoumi S, Elmaouaki A, Lekouch N, Pineau A, Sedki A. Hair Trace Elements and Mineral Content in Moroccan Children with Autism Spectrum Disorder: a Case-Control Study. Biol Trace Elem Res 2023; 201:2701-2710. [PMID: 35896886 DOI: 10.1007/s12011-022-03365-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/16/2022] [Indexed: 11/02/2022]
Abstract
The prevalence of autism spectrum disorder (ASD) around the world continues to increase while the pathophysiology remains insufficiently elucidated. Genetics, environment, and epigenetic changes are often implicated. Abnormal level in trace elements and minerals is among environmental factors assumed to be involved. The purpose of this article is to assess hair concentrations of toxic and essential elements in children with ASD and children with neurotypical development in the city of Marrakech. Two hundred and twenty-seven children (107 with ASD and 120 controls) aged 3 to 14 years old were recruited. The results of analysis by ICP-MS showed a significant decrease in hair levels of copper, zinc, iron, and selenium (25%, 13%, 17%, 11%) of children with ASD. The most significantly reduced concentrations in children with ASD are that of manganese by 34%. Hair aluminum level was significantly elevated by 29% in ASD compared to controls. Multiple linear regression analysis revealed that copper, selenium, and iron content in hair were significantly inversely associated with ASD, similarly, hair aluminum content was significantly associated with ASD. Adjusted model for demographic parameters increased the predictive ability of the model, father's age was a significant predictor. In addition, ASD and gender were significant predictors of hair levels of aluminum, selenium, and manganese.These results support the hypothesis of the disparity of trace elements and minerals levels in children with ASD and highlight the potential interest of micronutrient supplementation in the eventual improvement of ASD symptoms. Future research should explore the pathophysiology of these micronutrient deficiencies.
Collapse
Affiliation(s)
- Mariam Ouisselsat
- Laboratory of Water, Biodiversity and Climate Change, Department of Biology, Faculty of Sciences - Semlalia, Cadi Ayyad University, Bd Moulay Abdellah BP, 2390-40001, Marrakech, Morocco.
| | - Sana Maidoumi
- Laboratory of Water, Biodiversity and Climate Change, Department of Biology, Faculty of Sciences - Semlalia, Cadi Ayyad University, Bd Moulay Abdellah BP, 2390-40001, Marrakech, Morocco
| | - Amal Elmaouaki
- Laboratory of Water, Biodiversity and Climate Change, Department of Biology, Faculty of Sciences - Semlalia, Cadi Ayyad University, Bd Moulay Abdellah BP, 2390-40001, Marrakech, Morocco
| | - Nadra Lekouch
- Laboratory of Water, Biodiversity and Climate Change, Department of Biology, Faculty of Sciences - Semlalia, Cadi Ayyad University, Bd Moulay Abdellah BP, 2390-40001, Marrakech, Morocco
| | - Alain Pineau
- Mineral Element Dosing Centre, UFR of Pharmaceutical and Biological Sciences, University of Nantes, 9, rue Bias, 44035 - 44000, Nantes Cedex 1, France
| | - Azeddine Sedki
- Laboratory of Water, Biodiversity and Climate Change, Department of Biology, Faculty of Sciences - Semlalia, Cadi Ayyad University, Bd Moulay Abdellah BP, 2390-40001, Marrakech, Morocco
| |
Collapse
|
3
|
Evans A, Bongiorno G, Fourie JJ, Lekouch N, Bianchi R, Khoury C, Thomas E, Chiummo R, Gradoni L. Elevated and sustained anti-feeding effect of Scalibor® deltamethrin collar against the sand fly Phlebotomus perniciosus in dogs confirmed for 1 year following treatment. Med Vet Entomol 2022; 36:14-19. [PMID: 34449100 PMCID: PMC9291146 DOI: 10.1111/mve.12545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/21/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Dogs are reservoir hosts for Leishmania infantum, a protozoan parasite transmitted by phlebotomine sand flies. The anti-feeding and fast-killing efficacy of Scalibor® deltamethrin collars against experimental Phlebotomus perniciosus challenges on dogs was determined over 1 year. Two groups of 8 dogs each were fitted with placebo (control) or deltamethrin collars (treated) on Day 0 and exposed to sand flies approximately every 28 days up to Day 364. After each exposure, anti-feeding and fast-killing efficacy rates were determined by comparing blood-fed or live insects, respectively, in the treated vs. the control group. Blood-fed and live sand flies were significantly less in treated dogs as compared to control dogs at each assessment. The anti-feeding efficacy rate exceeded 90% except on Day 337 (89%) but increased again (96%) on Day 364. Fast killing efficacy was <74% over the study when considering all flies. However, this value increased cumulatively to 98% when only blood-fed flies were compared between groups. Scalibor® collars are highly effective at preventing P. perniciosus blood-feeding and in fast-killing flies taking a blood meal for up to 1 year after application. These strong and long-lasting effects are an important strategic component for L. infantum transmission control.
Collapse
Affiliation(s)
- A. Evans
- Clinvet SA MoroccoMohammediaMorocco
| | - G. Bongiorno
- Unit of Vector‐borne Diseases, Department of Infectious DiseasesIstituto Superiore di SanitàRomeItaly
| | - J. J. Fourie
- Clinvet International (Pty) LtdBloemfonteinSouth Africa
| | | | - R. Bianchi
- Unit of Vector‐borne Diseases, Department of Infectious DiseasesIstituto Superiore di SanitàRomeItaly
| | - C. Khoury
- Unit of Vector‐borne Diseases, Department of Infectious DiseasesIstituto Superiore di SanitàRomeItaly
| | - E. Thomas
- MSD Animal Health Innovation GmbHSchwabenheimGermany
| | - R. Chiummo
- MSD Animal Health Innovation GmbHSchwabenheimGermany
| | - L. Gradoni
- Unit of Vector‐borne Diseases, Department of Infectious DiseasesIstituto Superiore di SanitàRomeItaly
| |
Collapse
|
4
|
Maidoumi S, Ouaziz CR, Ouisselsat M, El Maouaki A, Loukid M, Lekouch N, Pineau A, Ahami A, Sedki A. Iron deficiency and cognitive impairment in children with low blood lead levels. Toxicol Rep 2022; 9:1681-1690. [DOI: 10.1016/j.toxrep.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/09/2022] [Accepted: 08/19/2022] [Indexed: 11/28/2022] Open
|
5
|
Bongiorno G, Meyer L, Evans A, Lekouch N, Bianchi R, Khoury C, Chiummo R, Thomas E, Gradoni L. A single oral dose of fluralaner (Bravecto®) in dogs rapidly kills 100% of blood-fed Phlebotomus perniciosus, a main visceral leishmaniasis vector, for at least 1 month after treatment. Med Vet Entomol 2020; 34:240-243. [PMID: 31769060 PMCID: PMC7318609 DOI: 10.1111/mve.12420] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/20/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
Dogs are the reservoir host of zoonotic visceral leishmaniasis (VL) caused by Leishmania infantum (Kinetoplastida: Trypanosomatidae). Both subclinically-infected and sick animals can be infectious to competent phlebotomine vectors. The degree and duration of insecticidal efficacy of an oral dose of fluralaner (Bravecto®; Merck Animal Health) was determined in dogs exposed to bites of Phlebotomus perniciosus (Diptera: Psychodidae), a main Mediterranean vector of VL. Twelve dogs allocated to two groups of six animals each were included in a parallel-group designed, negative-controlled, randomized, blinded, single-centre efficacy study. Group 2 was treated with fluralaner on day 0, and sand-fly exposure of both groups was performed on days 1, 28 and 84. Viability of blood-fed females was assessed up to 96 h after exposure and efficacy was measured as the survival rate of specimens fed on Group 2 versus those fed on Group 1. A mortality of 100% was recorded at 24 h in females fed on Group 2 at both days 1 and 28. Significant insecticidal efficacy was still observed on day 84, with > 50% mortality recorded by 48 h post blood meal in Group 2. Fluralaner treatment of dogs represents a promising and affordable method for reducing the pool of infected vectors in endemic settings of zoonotic VL.
Collapse
Affiliation(s)
- G. Bongiorno
- Unit of Vector‐borne DiseasesIstituto Superiore di SanitàRomeItaly
| | - L. Meyer
- Clinvet SA MoroccoMohammediaMorocco
| | - A. Evans
- Clinvet SA MoroccoMohammediaMorocco
| | | | - R. Bianchi
- Unit of Vector‐borne DiseasesIstituto Superiore di SanitàRomeItaly
| | - C. Khoury
- Unit of Vector‐borne DiseasesIstituto Superiore di SanitàRomeItaly
| | - R. Chiummo
- MSD Animal Health Innovation GmbHSchwabenheimGermany
| | - E. Thomas
- MSD Animal Health Innovation GmbHSchwabenheimGermany
| | - L. Gradoni
- Unit of Vector‐borne DiseasesIstituto Superiore di SanitàRomeItaly
| |
Collapse
|
6
|
Zaida F, Sedki A, Laroche D, Lekouch N, Bouglé D. [High cord blood TSH in Morocco: iatrogenic hypothyroidism?]. Ann Endocrinol (Paris) 2006; 67:39-41. [PMID: 16596056 DOI: 10.1016/s0003-4266(06)72538-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A short prospective study was conducted to assess thyroid status in healthy full term newborns (n=90) of a large maternity of Marrakech (Morocco), as part of the validation of a national salt iodisation program. High TSH (>5mU/l) was detected in 89% of infants tested; urinary iodine excretion was measured in 35 of the mothers, and was found to be normal (100-200microg/l) or high (>200microg/l)(n=27) in all of them. Milk iodine concentration was measured in 315 lactating women from the same area. Low values (<41microg/l) were found in 60% of them. The common use of iodinated disinfectants during delivery could be responsible for the high urine iodine values of mothers; however iodine deficiency seems to remain a widespread problem in this population and justifies a large scale survey of iodine status.
Collapse
Affiliation(s)
- F Zaida
- Laboratoire d'écotoxicologie, Faculté des sciences Semlalia, Université Cadi Ayyad, Marrakech, Maroc
| | | | | | | | | |
Collapse
|
7
|
Zaida F, Bureau F, Guyot S, Sedki A, Lekouch N, Arhan P, Bouglé D. Iron availability and consumption of tea, vervain and mint during weaning in Morocco. Ann Nutr Metab 2006; 50:237-41. [PMID: 16508250 DOI: 10.1159/000091680] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2005] [Accepted: 07/19/2005] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS Iron deficiency impairs growth and psychomotor development of infants. In Morocco, infusions are introduced very early in infant diet, and could contribute to iron deficiency, due to their high polyphenol content. METHODS The availability of tea, mint and vervain infusions was assessed using an in vitro model of digestion and dialysis. Two gastric pHs were used: pH 4 as in the first week life, and pH 2.5 as in older infants. Six repetitions of each experiment were made. The total polyphenol content of infusions was measured. RESULTS At pH 4 and at pH 2.5, iron availability was decreased by tea and vervain, and increased by mint and ascorbic acid. At both pHs it was increased by addition of ascorbic acid to tea and vervain. In addition, at pH 2.5 it was increased by addition of ascorbic acid to mint. The highest value was observed in the presence of both ascorbic acid and mint (33.1 +/- 4.1%). In any case, iron availability was higher at pH 2.5 than at pH 4 (with single compounds or combinations with ascorbic acid). The polyphenol contents (mg/l) of tea, vervain and mint infusions were 2,236.1, 771.1, and 16.5. CONCLUSIONS Tea and vervain infusions inhibited iron availability. In contrast, mint improved it; vitamin C helped in preventing these inhibiting properties. It could be proposed to discourage tea and vervain drinking at early weaning and to replace them by mint infusion, or at least to promote the consumption of vitamin C-rich fruit juice to counteract these inhibiting effects.
Collapse
Affiliation(s)
- F Zaida
- Laboratoire de Physiologie et Service de Pédiatrie A, CHU de Caen, Caen, France
| | | | | | | | | | | | | |
Collapse
|
8
|
Sedki A, Lekouch N, Gamon S, Pineau A. Toxic and essential trace metals in muscle, liver and kidney of bovines from a polluted area of Morocco. Sci Total Environ 2003; 317:201-205. [PMID: 14630422 DOI: 10.1016/s0048-9697(03)00050-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Toxic and essential trace metals were measured in muscle, bone, liver and kidney of bovine grazing on the municipal wastewater spreading field of Marrakech City (Morocco). Bovines were found to be seriously contaminated by toxic metals, for metal bioaccumulation. The high cadmium content seemed to contribute to a reduction in zinc and copper levels. The arithmetic mean concentrations of zinc, especially cadmium, and levels were higher in liver and kidney, specific target organs copper and cadmium in liver and kidney, were respectively: 126, 112 and 5.1 microg/g in liver; 89, 33 and 10.3 microg/g in kidney.
Collapse
Affiliation(s)
- A Sedki
- Ecotoxicology Laboratory, Faculty of Sciences, Semlalia, Cadi, Ayyad University, Marrakech, Morocco.
| | | | | | | |
Collapse
|
9
|
Sedki A, Khassouani CE, Zaida F, Lekouch N, Bouglé D. Heavy metals levels in the general population from Marrakech, Morocco. ACTA ACUST UNITED AC 2003. [DOI: 10.1051/jp4:20030517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
10
|
Abstract
The use of traditional cosmetics and remedies such as kohl and henna is very common in Morocco, especially among women, children and babies. Kohl is a dangerous eye cosmetic. It is usually mixed with other harmful substances, then applied on women's eyebrows and used in skin treatments for infants. Henna is another traditional product, with religious associations, which has been widely used over the centuries for cosmetic and medical purposes. Many people add various herbs or other substances to the henna in order to strengthen it or to give it a stronger colour. Our results were reassuring in that the concentrations of lead found in non-elaborate (henna only) samples of henna were low. However, when henna was mixed with other products (elaborate henna), these concentrations increased. Lead concentrations in kohl were very high however, unlike henna, were lower in mixed kohl as mixing with other products diluted the concentration of lead. Nevertheless, in both types of kohl, lead concentrations were very high and consequently constitute a risk for public health, particularly for children.
Collapse
Affiliation(s)
- N Lekouch
- University Cadi Ayyad, Faculty of Sciences, Department of Biology, Marrakech, Morocco
| | | | | | | |
Collapse
|
11
|
Lekouch N, Sedki A, Bouhouch S, Nejmeddine A, Pineau A, Pihan JC. Trace elements in children's hair, as related exposure in wastewater spreading field of Marrakesh (Morocco). Sci Total Environ 1999; 243-244:323-8. [PMID: 10635601 DOI: 10.1016/s0048-9697(99)00403-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Lead and cadmium concentration was determined in the hair of 327 school children living in a wastewater spreading field of Marrakesh (Morocco). The influence of age, sex, food habits and family occupation on the children's hair Pb and Cd concentration was also evaluated. Girls had more metal in their hair than boys (16.5 +/- 5.4 micrograms/g and 12.5 +/- 3.5 micrograms/g, respectively). However, for Cd the boys had more metal (2.9 +/- 0.6 and 2.2 +/- 0.4, respectively) but the difference was not statistically significant and metal levels decreased with age. Family occupation, direct contact with wastewater, customs and food habits were the most significant factors influencing the metal content of children's hair. The average Pb and Cd content were higher in the exposed children (14.8 +/- 4.5 micrograms/g and 2.5 +/- 0.5 micrograms/g, respectively) than in the non-exposed children (4.6 +/- 2.2 micrograms/g and 0.6 +/- 0.2, respectively), but the difference was not statistically significant. This study shows that in this area all the population (especially children) was extremely exposed to the danger caused by potentially toxic metals.
Collapse
Affiliation(s)
- N Lekouch
- Ecotoxicology Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, Morocco
| | | | | | | | | | | |
Collapse
|