ArticleJournal of chemical neuroanatomy2020
Modeling cerebellar limb dysmetria and impaired spatial memory in rats using lamivudine: A preliminary study.
Article in Journal of chemical neuroanatomy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 5 citations in OpenAlex.
- The Influence of Nucleoside Reverse Transcriptase Inhibitors on Mitochondrial Activity, Lipid Content, and Fatty-Acid-Binding Protein Levels in Microglial HMC3 Cells.Pharmaceuticals (Basel, Switzerland) · 2023Article
- A retrospective study of structural brain lesions identified by magnetic resonance imaging in 114 cats with neurological signs.Veterinary world · 2023Article
- Therapeutic activities of naringenin on efavirenz-induced sleep-like disorder in the midbrain of white albino mice.Iranian journal of basic medical sciences · 2020Article
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5 authors at 1 institution in 1 country.
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Abstract
BACKGROUND AND
aimNeurodegeneration has been associated with the use of combination antiretroviral therapy (cART). This study is aimed at determining if any constituent of cART can induce cerebellar limb dysmetria and spatial memory impairments. MATERIALS AND
methodsForty adult male Wistar rats were randomly grouped into four (n = 10): control (distilled water 0.5 mL); Tenofovir (6 mg/kg); Lamivudine (6 mg/kg) and Efavirenz (12 mg/kg). The following neurobehavioral studies were conducted: open field, beam walk, and Morris water maze. Immunohistochemistry of CD 68 and GFAP were used to test for neuroinflammation and neurodegeneration.
resultsThere was marked increase in pyknotic pyramidal cells of the hippocampus and ghost Purkinje cells in the cerebellum of treatment groups. There was also a significant increase in oxidative stress in lamivudine and efavirenz groups. In addition, Lamivudine caused a significant increase of microglial and astrocytic activity (p < 0.001, 0.05 respectively) compared to control. The open field test showed a significant decrease (p < 0.0001) of the line crossing performance in the efavirenz, lamivudine and tenofovir (with means: 26.4, 4.6, 17.4 respectively) compared to control (50.6). There was also a significant decrease in the grooming (p < 0.05) and rearing (p < 0.01) in lamivudine group. Whereas, walk latency increased in efavirenz (p < 0.01), and lamivudine (p < 0.0001) compared to control. While hind limb slips significantly increased in efavirenz (p < 0.05) and lamivudine (p < 0.0001) compared with control group. Likewise, Lamivudine and Tenofovir exposed groups experienced a significant delay in the time to identify the hidden platform in compared to control (p < 0.05).
conclusionLamivudine altered efferent stimuli along the cerebellospinal tracts thereby causing motor impairments. The degenerating Purkinje fibers may have induced marked neurodegeneration in the hippocampus resulting in impaired spatial memory.
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