1
|
Neuroprotective Effects of Nano-Curcumin against Cypermethrin Associated Oxidative Stress and Up-Regulation of Apoptotic and Inflammatory Gene Expression in Rat Brains. Antioxidants (Basel) 2023; 12:antiox12030644. [PMID: 36978892 PMCID: PMC10045852 DOI: 10.3390/antiox12030644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Cypermethrin (CPM) is the most toxic synthetic pyrethroid that has established neurotoxicity through oxidative stress and neurochemical agitation in experimental rats. The toxic effects are supposed to be mediated by modifying the sodium channels, reducing Na-K ATPase, acetylcholine esterase (AchE), and monoamine oxidase (MAO). The use of curcumin nanoparticles (NC) that have potent antioxidant, anti-inflammatory and antiapoptotic properties with improved bioavailability attenuates neurotoxicity in rat brains. To test this hypothesis, animals were divided into five groups, each having six animals. Group-I control received vehicle only, while Group-II was treated with 50 mg/kg CPM. Group-III and Group-IV received both CPM and NC 2.5 mg/kg and 5 mg/kg, respectively. Group-V received 5 mg of NC alone. The CPM and NC were given by oral route. Afterwards, brain antioxidant status was measured by assessing lipid peroxidation (LPO), 4-HNE, glutathione reduced (GSH), antioxidant enzyme catalase, and superoxide dismutase (SOD) along with neurotoxicity markers Na-K ATPase, AchE, and MAO. Inflammation and apoptosis indices were estimated by ELISA, qRT-PCR, and immunohistochemistry, while morphologic changes were examined by histopathology. Observations from the study confirmed CPM-induced neurotoxicity by altering Na-K ATPase, AchE, and MAO, and by decreasing the activity of antioxidant enzymes and GSH. Oxidative stress marker LPO and the level of inflammatory interleukins IL-6, IL-1β, and TNF-α were notably high, and elevated expressions of Bax, NF-kB, and caspase-3 and -9 were reported in CPM group. However, NC treatment against CPM offers protection by improving antioxidant status and lowering LPO, inflammation, and apoptosis. The neurotoxicity marker’s enzyme successfully attenuated after NC treatment. Therefore, this study supports the administration of NC effectively ameliorated CPM-induced neurotoxicity in experimental rats.
Collapse
|
2
|
Chen Y, Zhang M, Zhao T, Lai J, Wang Y, Zhou Q, Li J, Hu K, Li Q, Ao X, Chen S, Yang Y, Zou L, Liu S. Optimization and adsorption characteristics of beads based on heat-inactivated bacterial biomaterial towards the pesticide Cypermethrin. J Appl Microbiol 2022; 134:lxac026. [PMID: 36626792 DOI: 10.1093/jambio/lxac026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/30/2022] [Accepted: 10/24/2022] [Indexed: 01/12/2023]
Abstract
AIMS Beads containing heat-inactivated bacterial biomaterial (BBBs) were prepared for removal of cypermethrin (CPM) and the conditions for this removal were evaluated and optimized via single-factor coupled orthogonal experiments based on five factors. The adsorption characteristics of BBBs and the binding mechanism were then explored. METHODS AND RESULTS Results showed that the adsorption rate of CPM could reach 98% with beads prepared under optimized conditions: equal volumes of Lactobacillus cell debris derived from 1×1011 CFU; 2% hydroxypropyl-β-cyclodextrin and 2.5% activated carbon concentration, were mixed to give mixture TM, and this and SA, was mixed 1:4 with sodium alginate (SA) and beads were prepared using a 26-Gauge needle). The best adsorption conditions were initial CPM concentration of 10 mg l-1, incubation time of 24 h, and rotational speed of 180 rpm. BBBs have a well-formed structure and abundant surface functional groups, such as -COOH, -OH, -NH, -CH, -CO, -C=C. The adsorption process conformed to pseudo-second-order kinetic, and it was also a Freundlich monolayer adsorption, and the calculated maximum adsorption capacity was 9.69 mg g-1 under optimized conditions. CONCLUSIONS BBBs showed the highest CPM removal capacity and a good tolerance ability. SIGNIFICANCE AND IMPACT OF THE STUDY Our results provided a theoretical foundation for developing an adsorbent with heat-inactivated Lactobacillus plantarum (L. plantarum) RS60 for removing CPM in wastewater or drinks.
Collapse
Affiliation(s)
- Yuan Chen
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Mengmei Zhang
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Tianye Zhao
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Jinghui Lai
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Yuanqing Wang
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Qiao Zhou
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Jianlong Li
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Kaidi Hu
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Qin Li
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Xiaolin Ao
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Shujuan Chen
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Yong Yang
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Likou Zou
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
| | - Shuliang Liu
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| |
Collapse
|
3
|
Song J, Ma X, Li F, Liu J. Exposure to multiple pyrethroid insecticides affects ovarian follicular development via modifying microRNA expression. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 828:154384. [PMID: 35276145 DOI: 10.1016/j.scitotenv.2022.154384] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Pyrethroids, a class of insecticides widely used in agriculture and residential pest control, have been considered as endocrine-disrupting chemicals (EDCs). Our previous epidemiological study reported a positive association of urinary levels of pyrethroid metabolites with the risk of primary ovarian insufficiency in women, suggesting that pyrethroid exposure may be a potential risk factor for female ovarian health. In this study, female mice at gestational, lactational or peripubertal stages were exposed to eight most commonly used pyrethroids at the doses of acceptable daily intake (ADI) recommended by the World Health Organization (WHO). Gestational exposure to eight pyrethroids at ADI doses led to a significant decrease in the number of primary follicles in female offspring on postnatal day (PND) 3, and an increase in the number of atretic follicles and granulosa cell apoptosis, as well as lower estrogen and higher follicle-stimulating hormone (FSH) levels in adult female offspring. Lactational and peripubertal exposure to pyrethroid mixture had no significant effects on follicular development and ovarian functions. The data of high-throughput microRNA (miRNA) sequencing showed that 23 miRNAs were differentially expressed in the ovaries of female offspring mice on PND 1 after gestational exposure to pyrethroid mixture. The results of qPCR confirmed that miR-152-3p, miR-450b-3p and miR-196a-5p were significantly upregulated in the neonatal ovaries in the exposed group. The bioinformatic analysis indicates that the modification of the expression of ovarian miRNAs by pyrethroid exposure may disrupt the key biological processes (such as mRNA processing) and major signaling pathways (such as PI3K/Akt pathway, adipocytokine pathway and GnRH pathway) governing follicular development and ovarian functions. This study first reported that gestational exposure of female mice to multiple pyrethroids at the recommended human safe doses had irreversible adverse effects on the ovaries in female offspring in adulthood through regulating the expression of miRNAs during early developmental stages.
Collapse
Affiliation(s)
- Jingyi Song
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaochen Ma
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Feixue Li
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
| | - Jing Liu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
4
|
Karimani A, Ramezani N, Afkhami Goli A, Nazem Shirazi MH, Nourani H, Jafari AM. Subchronic neurotoxicity of diazinon in albino mice: Impact of oxidative stress, AChE activity, and gene expression disturbances in the cerebral cortex and hippocampus on mood, spatial learning, and memory function. Toxicol Rep 2021; 8:1280-1288. [PMID: 34277358 PMCID: PMC8261896 DOI: 10.1016/j.toxrep.2021.06.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 06/06/2021] [Accepted: 06/14/2021] [Indexed: 02/03/2023] Open
Abstract
Diazinon (DZN) with prominent neurotoxic effects perturbs CNS function via multiple mechanisms. This investigation intends to explore mood, spatial learning, and memory dysfunction, acetylcholine esterase (AChE) activity, and neurodegeneration-related gene expression in the cortex and hippocampus regions of mice exposed to DZN for 63 consecutive days (subchronic exposure). Adult male albino mice were orally given sublethal DZN (DZNL = 0.1 mg/kg, DZNM = 1 mg/kg and DZNH = 10 mg/kg). All mice in the DZNH group died within 3 weeks postexposure. DZNL and DZNM caused body and brain weight loss (p < 0.05). Completing 9 weeks of DZN exposure, a marked decline in AChE activity and oxidative stress level was indicated in both brain regions (p < 0.05). Also, synaptophysin, vesicular acetylcholine transferase, and glutamate decarboxylase gene expressions were affected in both brain regions (p < 0.05). Furthermore, the present study revealed that DZN administration increased anxiety and depressive-like behaviors (p < 0.0001). Spatial learning and short- and long-memory were severely affected by DZNL and DZNM treatments (p < 0.0001). Taken together, subchronic exposure to low and medium doses of DZN can cause AChE inhibition, oxidative damage, and neurotransmitter disturbances in brain cells and induce neurodegeneration. These changes would impair mood, spatial learning, and memory function.
Collapse
Key Words
- AChE, acetylcholine esterase
- AD, Alzheimer’s disease
- Ach, acetylcholine
- COX-2, cyclooxygenase-2
- CX, cerebral cortex
- Cerebral cortex
- DZN, diazinon
- DZO, diazoxon
- Diazinon
- FRAP, ferric reducing antioxidant power
- FST, forced swim test
- GABA, ϒ-aminobutyric acid
- GAD65, glutamate decarboxylase 65
- HP, hippocampus
- Hippocampus
- LD50, lethal dose 50
- MB, marble burying test
- MDA, malondialdehyde
- MWM, Morris water maze test
- Memory
- NOAEL, no-observed-adverse-effect level
- Neurodegenerative diseases
- Ops, organophosphates
- PD, Parkinson’s disease
- RNS, reactive nitrogen species
- ROS, reactive oxygen species
- SEM, standard error of the mean
- SYP, synaptophysin
- Spatial learning
- VAChT, vesicular acetylcholine transferase
- qRT-PCR, quantitative reverse transcription-polymerase chain reaction
Collapse
Affiliation(s)
- Asieh Karimani
- Department of Toxicology, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Nasrin Ramezani
- Department of Toxicology, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Amir Afkhami Goli
- Department of Toxicology, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Hosein Nourani
- Department of Pathology, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Amir Moghaddam Jafari
- Department of Toxicology, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
5
|
Shilpakar O, Karki B. Cypermethrin poisoning manifesting with prolonged bradycardia: A case report. Toxicol Rep 2020; 8:10-12. [PMID: 33364178 PMCID: PMC7750177 DOI: 10.1016/j.toxrep.2020.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/05/2020] [Accepted: 12/08/2020] [Indexed: 01/09/2023] Open
Abstract
Cypermethrin poisoning can present as a medical emergency with neurological, gastrointestinal or cardiac manifestations. Prolonged bradycardia following acute oral intoxication with cypermethrin is a rare entity. In view of the absence of antidote, conservative management has been found effective in prolonged bradycardia induced by cypermethrin toxicity.
Pyrethrins and their synthetic derivatives known as pyrethroids are highly effective insecticides used worldwide in the agricultural fields and households. Cypermethrin is a type II pyrethroid which acts primarily by delaying the closure of voltage-sensitive sodium channels at higher concentrations. Its toxicity in humans occur due to accidental or intentional exposure through inhalation, skin contact or via ingestion. Acute oral intoxication of cypermethrin commonly manifests with neurotoxic and gastrointestinal effects in humans. Cardiotoxic effects following ingestion of this compound have occurred in a few cases but underreported to date. This case highlights a case of intentional cypermethrin poisoning with acute effects in the form of prolonged bradycardia symptomatically managed with a muscarinic antagonist like atropine sulphate.
Collapse
Affiliation(s)
- Olita Shilpakar
- Department of General Practice and Emergency Medicine, NAMS, Bir Hospital, Kathmandu, Nepal
| | - Bipin Karki
- Department of Critical Care Medicine, Om Hospital and Research Centre, Kathmandu, Nepal
| |
Collapse
|