HISTOPATHOLOGICAL IMAGE OF THE NUMBER OF NEURONS IN THE BRAIN OF MICE (MUS MUSCULUS) INDUCED BY LEAD HEAVY METAL
Abstract
Lead is a known heavy metal from human history to date for various uses, abuses and toxicities. Lead poisoning has been recognized as one of the most serious environmental health issues worldwide, especially children living in developing countries. Lead can damage or affect the organs of the body, among others, the nervous system, kidneys, reproductive system, and heart, as well as disturbances in the brain so that intellectual and mental disorders in the brain. This study aims to see the effect of lead on the number of neurons in the hippocampus in mice experimental animals. The mice used amounted to 10 tails and divided into two for the control group and the treatment group. The control group, each of which was 5 tails, was then given unbleached drinking water while the treatment group was given drinking water mixed with acetate with concentration of 1000ppm for 17 days in adlibitum. The observations were taken from each of the 5 fields of view on each preparation with a magnification of 40x. The calculation of the number of neuron cells is then analyzed descriptive statistics and different test. The result showed that control group with mean ± SD were 127,6 ± 7,9, and for treatment group that was 80,0 ± 20,9. T independent test result showed p = 0,001 (p <0,05) which means that there was a significant difference between control and treatment group. The conclusion of this research is the existence of neuron cell damage in mice that get treatment. By showing the number of neurons less than the control mice. Suggestion to develop this research hence need to continue research to find neuro protector compound specially from lead work in brain.
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References
Al-khafaf, A., Ismail, H. Kh., & Alsaidya, A. M. A. (2021). Histopathological effects of experimental exposure to lead on nervous system in albino female rats. Iraqi Journal of Veterinary Sciences, 35(1), 45–48. https://doi.org/10.33899/ijvs.2019.126248.1273
Alyami, N. M., Alonaizan, R., Alobaid, H., Maodaa, S., Alothman, N. S., Alshiban, N. M., Alnakhli, Z. A., Alyami, M. M., & Almeer, R. (2026). Dose-inverted neurotoxicity: La?O? nanoparticles cause redox dysregulation at low concentrations but excitotoxic catastrophe at high doses. Toxicology, 520, 154358. https://doi.org/10.1016/j.tox.2025.154358
An, S., Ge, Y., Liu, Y., Sun, Z., Chen, M., Chi, C., Yin, Z., Liu, J., Li, J., & Chen, L. (2026). Regulatory role of GLUT1 in lead-induced neurotoxicity and the neuroprotective effect of Morinda officinalis oligosaccharides. iScience, 29(4), 115342. https://doi.org/10.1016/j.isci.2026.115342
Bao, M.-Y., Li, X.-Q., Sun, Q.-Q., He, Y., Yin, Y.-J., Li, S.-H., Du, R.-Y., Ma, G.-X., Feng, C.-Y., Han, B., Jia, R., Wang, X., Wang, L.-B., Yan, Y.-P., Li, X., & Zhang, Y. (2026). Oligodendrocyte-encoded lactate dehydrogenase A couples glycolysis to remyelination via protein lactylation. Neuron. https://doi.org/10.1016/j.neuron.2026.02.032
Bellver-Sanchis, A., Valle-Garcia, D., Barbaraci, C., Romero-Becerra, F., Singh, R. K., Jarne-Ferrer, J., Vasilopoulou, F., Irisarri, A., Martínez-Fernández, C., Fafián-Labora, J. A., Arufe, M. C., Wüst, C., Castellanos, A., Soto, D., Casals, N., Fadó, R., Pocock, J. M., Navarro, G., Val, C., … Griñán-Ferré, C. (2026). First-in-class SAM-competitive G9a inhibitor FLAV-27 as a disease-modifying therapy for Alzheimer disease. Molecular Therapy, 34(4), 2372–2407. https://doi.org/10.1016/j.ymthe.2025.12.038
Cacabelos, R., Tellado, I., Cacabelos, N., Martínez-Iglesias, O., & Naidoo, V. (2025). Chapter 1—Epigenetic machinery. In R. Cacabelos (Ed.), Pharmacoepigenetics (Second Edition) (Vol. 10, pp. 1–117). Academic Press. https://doi.org/10.1016/B978-0-443-18722-3.00021-9
Cavestro, C., Cascone, F., Legati, A., Izzo, R., Catania, M., Vergara, C., Rodríguez-Pascau, L., Pizcueta, P., Tiranti, V., & Di Meo, I. (2026). PPAR? activation by leriglitazone counteracts neurodegeneration and neuroinflammation in a disease-relevant mouse model of COASY dysfunction. Pharmacological Research, 227, 108193. https://doi.org/10.1016/j.phrs.2026.108193
Feng, S., Sun, B., Tian, L., Li, M., & Sun, G. (2026). Nrf2 modulates the IRF7–SLC31A1 axis to suppress neuronal cuproptosis after traumatic brain injury. Experimental Neurology, 401, 115747. https://doi.org/10.1016/j.expneurol.2026.115747
Generalova, A., Davidova, S., & Satchanska, G. (2025). The mechanisms of lead toxicity in living organisms. Journal of Xenobiotics, 15(5), 146. https://doi.org/10.3390/jox15050146
Gonzalez-Villalva, A., et al. (2025). Lead systemic toxicity: A persistent problem for health. Toxicology, 515, 154163. https://doi.org/10.1016/j.tox.2025.154163
Gu, Z., Qian, L., Jiang, W., Lu, S., Lin, Y., Ge, X., Liu, Z., Qu, F., & Miao, L. (2026). Iron overload induces hepatic iron deposition and oxidative damage in freshwater fish Megalobrama amblycephala by inhibiting ferroportin 1 gene expression. Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 282, 111188. https://doi.org/10.1016/j.cbpb.2025.111188
Hardiansyah, A. (2025). Tinjauan sistematis faktor lingkungan dan perilaku terhadap keracunan timbal pada anak. Journal of Medical and Health Sciences, 1(2), 55–61. https://doi.org/10.71094/jmhs.v1i2.171
Huang, J., Qin, Y., Chen, H., & Liu, F. (2026). Preclinical evidence of adenosine for early intervention in Bungarus multicinctus envenomation. Journal of Advanced Research, 81, 769–780. https://doi.org/10.1016/j.jare.2025.06.012
Jiao, D., Zhang, Y., Guo, W., Liu, S., Su, P., & Huang, L. (2026). Cardiac glycosides: Structural diversity, chemical ecology, bioactivity, and artificial synthesis. Natural Product Reports, 43(1), 167–199. https://doi.org/10.1039/d5np00050e
Kiris, I., Kukula-Koch, W., Karayel-Basar, M., Gurel, B., Coskun, J., & Baykal, A. T. (2023). Proteomic alterations in the cerebellum and hippocampus in an Alzheimer’s disease mouse model: Alleviating effect of palmatine. Biomedicine & Pharmacotherapy, 158, 114111. https://doi.org/10.1016/j.biopha.2022.114111
Levi, U. I., Bintu, M. M., Daniella, O. C., Oyenike, O.-A. F., Agbonu, A. O., Adedamola, A. M., Ndidi, E., Saka, S. F., Gela, B. V., Mbagwu, S. I., Edem, E. E., Olukayode, O. J., & James, C. (2024). Neurobehavioral deficits, histoarchitectural alterations, parvalbumin neuronal damage and glial activation in the brain of male Wistar rat exposed to Landfill leachate. Journal of Chemical Neuroanatomy, 136, 102377. https://doi.org/10.1016/j.jchemneu.2023.102377
Li, Y., et al. (2025). Protein kinase C family: Structures, biological functions, diseases, and pharmaceutical interventions. MedComm (Beijing), 6(11). https://doi.org/10.1002/mco2.70474
Liang, Y., Liu, M., Jiang, H., Wang, X., Shao, H., & Wang, L. (2026). Pathophysiological and behavioral consequences of dichlorvos-induced oxidative stress in rodent models: A systematic review of mechanisms and protective strategies. Ecotoxicology and Environmental Safety, 310, 119600. https://doi.org/10.1016/j.ecoenv.2025.119600
Lin, J., Zeng, X., Su, Z., Li, X., Yu, Y., Qian, S., Hou, Q., Duan, W., Wang, Z., Liu, C., Zhang, J., Huang, C., & Liao, L. (2026). Hyodeoxycholic acid relieves neuropathic pain by activating farnesoid X receptor signaling. Journal of Advanced Research, 82, 881–900. https://doi.org/10.1016/j.jare.2025.07.017
Maddusa, S. S., Joseph, W. B. S., Pomantow, S. M. T., Asrifuddin, A., Akili, R. H., & Bahrain, N. E. A. (2023). Environmental health risks assessment of human exposure to Pb pollution around Soyoan River, Indonesia. Diversity: Disease Preventive of Research Integrity, 87–94. https://doi.org/10.24252/diversity.v3i2.34891
Maria, H., Jessica, A., Gabriella, E., Aprillia, C., & Yudiarso, A. (2025). Impact of lead (Pb) on health. Journal of Global Research in Public Health, 10(1), 1–14. https://doi.org/10.30994/jgrph.v10i1.549
Ma, W., Ren, H., Meng, X., Liu, S., Du, K., Fang, S., & Chang, Y. (2024). A review of the ethnopharmacology, phytochemistry, pharmacology, pharmacokinetics and quality control of Paeonia lactiflora Pall. Journal of Ethnopharmacology, 335, 118616. https://doi.org/10.1016/j.jep.2024.118616
Nam, D., Kim, H., Han, S. J., Son, I., & Ho, D. H. (2024). Effects of calcium ion dyshomeostasis and calcium ion-induced excitotoxicity in Parkinson’s disease. Journal of Molecular Pathology, 5(4), 544–557. https://doi.org/10.3390/jmp5040037
Naskar, R., Ghosh, A., Bhattacharya, R., & Chakraborty, S. (2024). A critical appraisal of geroprotective activities of flavonoids in terms of their bio-accessibility and polypharmacology. Neurochemistry International, 180, 105859. https://doi.org/10.1016/j.neuint.2024.105859
Neuwirth, L. S., & Emenike, B. U. (2024). Neurotoxicity and outcomes from developmental lead exposure: Persistent or permanent? Environmental Health Perspectives, 132(4). https://doi.org/10.1289/EHP14809
Parithathvi, A., Harshitha, P., Mumbrekar, K. D., & Dsouza, H. S. (2025). Systematic review on neurotoxic implications of lead-induced gene expression alterations in the etiology of Alzheimer’s disease. Cellular and Molecular Neurobiology, 45(1), 98. https://doi.org/10.1007/s10571-025-01613-6
Rainone, G. J., Johansen, P. M., Pressman, P., & Hayes, A. W. (2025). Putative effects of lead on the endocannabinoid system: A literature review and summary. International Journal of Molecular Sciences, 26(18), 8994. https://doi.org/10.3390/ijms26188994
Rautela, A., Chatterjee, R., Yadav, I., & Kumar, S. (2024). A comprehensive review on engineered microbial production of farnesene for versatile applications. Journal of Environmental Chemical Engineering, 12(2), 112398. https://doi.org/10.1016/j.jece.2024.112398
Rojo, A. I., Buttari, B., Cadenas, S., Carlos, A. R., Cuadrado, A., Falcão, A. S., López, M. G., Georgiev, M. I., Grochot-Przeczek, A., Gumeni, S., Jimenez-Villegas, J., Horbanczuk, J. O., Konu, O., Lastres-Becker, I., Levonen, A.-L., Maksimova, V., Michaeloudes, C., Mihaylova, L. V., Mickael, M. E., … Dinkova-Kostova, A. T. (2025). Model organisms for investigating the functional involvement of NRF2 in non-communicable diseases. Redox Biology, 79, 103464. https://doi.org/10.1016/j.redox.2024.103464
Son, Y., et al. (2025). Behavioral and neurochemical changes in mice induced by low-level lead exposure: Implications for ADHD and conduct disorders. Ecotoxicology and Environmental Safety, 302, 118735. https://doi.org/10.1016/j.ecoenv.2025.118735
Tamagno, W. A., & Freeman, J. L. (2025). Glutamate-mediated neural alterations in lead exposure: Mechanisms, pathways, and phenotypes. Toxics, 13(7), 519. https://doi.org/10.3390/toxics13070519
W?ng, Y. (2025). Physicochemical properties and combined toxic effects of micro- and nanoplastics on gut and gut-organ axes. Trends in Food Science & Technology, 165, 105265. https://doi.org/10.1016/j.tifs.2025.105265
World Health Organization. (2024). Lead poisoning and health. https://www.who.int/news-room/fact-sheets/detail/lead-poisoning-and-health
Xu, Y., Liu, L., Ma, Y., Wang, C., Duan, F., Feng, J., Yin, H., Sun, L., Cao, Z., Jung, J., Li, P., & Li, Z.-H. (2025). Biotransport and toxic effects of micro- and nanoplastics in fish model and their potential risk to humans: A review. Aquatic Toxicology, 279, 107215. https://doi.org/10.1016/j.aquatox.2024.107215
Yadav, B., Chavan, S., Atmakuri, A., Tyagi, R. D., & Drogui, P. (2023). Chapter 3—Environmental effects of microplastics and nanoplastics exposure. In R. D. Tyagi, A. Pandey, P. Drogui, B. Yadav, & S. Pilli (Eds.), Current Developments in Biotechnology and Bioengineering (pp. 59–78). Elsevier. https://doi.org/10.1016/B978-0-323-99908-3.00008-7
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Copyright (c) 2026 Herera Rahajeng, Eka Sri Haryati, Ichwan Baihaki, Niken Rahmah Ghanny, Afifa Radhina, Assyafiya Salwa, Fransiskus Samuel Renaldi

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