Evidence map›Paper›PMID 27975173›Full record

ArticleMolecular neurobiology2018

Acetyl-L-Carnitine via Upegulating Dopamine D1 Receptor and Attenuating Microglial Activation Prevents Neuronal Loss and Improves Memory Functions in Parkinsonian Rats.

Sonu Singh, Akanksha Mishra, Neha Srivastava, Rakesh Shukla, Shubha Shukla

Abstract read
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In one paragraph

Article in Molecular neurobiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.

  1. Pooled it
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  4. [Early lifeNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2025
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  8. Synergistic Effect of Coenzyme Q10 and L-Carnitine on Gliosis and Anhedonia, in a Rat Model of Multiple Sclerosis: An Immunohistochemical Study.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Sonu SinghPharmacology Division, CSIR-Central Drug Research Institute (CSIR-CDRI), BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.
Akanksha MishraPharmacology Division, CSIR-Central Drug Research Institute (CSIR-CDRI), BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.
Neha SrivastavaPharmacology Division, CSIR-Central Drug Research Institute (CSIR-CDRI), BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.
Rakesh ShuklaPharmacology Division, CSIR-Central Drug Research Institute (CSIR-CDRI), BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.
Shubha ShuklaPharmacology Division, CSIR-Central Drug Research Institute (CSIR-CDRI), BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India. shubha_shukla@cdri.res.in.ORCID 0000-0002-2280-5526
Central Drug Research Institute · IN

Funding

Council of Scientific and Industrial Research BSC0115
6 · The paper itself

Abstract

Parkinson's disease is accompanied by nonmotor symptoms including cognitive impairment, which precede the onset of motor symptoms in patients and are regulated by dopamine (DA) receptors and the mesocorticolimbic pathway. The relative contribution of DA receptors and astrocytic glutamate transporter (GLT-1) in cognitive functions is largely unexplored. Similarly, whether microglia-derived increased immune response affects cognitive functions and neuronal survival is not yet understood. We have investigated the effect of acetyl-L-carnitine (ALCAR) on cognitive functions and its possible underlying mechanism of action in 6-hydroxydopamine (6-OHDA)-induced hemiparkinsonian rats. ALCAR treatment in 6-OHDA-lesioned rats improved memory functions as confirmed by decreased latency time and path length in the Morris water maze test. ALCAR further enhanced D1 receptor levels without altering D2 receptor levels in the hippocampus and prefrontal cortex (PFC) regions, suggesting that the D1 receptor is preferentially involved in the regulation of cognitive functions. ALCAR attenuated microglial activation and release of inflammatory mediators through balancing proinflammatory and anti-inflammatory cytokines, which subsequently enhanced the survival of mature neurons in the CA1, CA3, and PFC regions and improved cognitive functions in hemiparkinsonian rats. ALCAR treatment also improved glutathione (GSH) content, while decreasing oxidative stress indices, inducible nitrogen oxide synthase (iNOS) levels, and astrogliosis resulting in the upregulation of GLT-1 levels. Additionally, ALCAR prevented the loss of dopaminergic (DAergic) neurons in ventral tagmental area (VTA)/substantia nigra pars compacta (SNpc) regions of 6-OHDA-lesioned rats, thus maintaining the integrity of the nigrostriatal pathway. Together, these results demonstrate that ALCAR treatment in hemiparkinsonian rats ameliorates neurodegeneration and cognitive deficits, hence suggesting its therapeutic potential in neurodegenerative diseases.

Indexed as

MemoryUp-RegulationAcetylcarnitineAnimalsCell LineDopaminergic NeuronsExcitatory Amino Acid Transporter 2GliosisGlutathioneInflammation MediatorsMaleMicrogliaMotor ActivityNeuronsNeuroprotectionNitric Oxide Synthase Type IIAcetylcarnitineExcitatory Amino Acid Transporter 2GlutathioneInflammation MediatorsNitric Oxide Synthase Type IIOxidopamineReceptors, Dopamine D1Slc1a2 protein, ratAcetyl-L-carnitineDopamine receptorGlutamate transporter-1Mesocorticolimbic pathwayMicroglial activationNeuronal survival

Identifiers

PMID27975173
OpenAlexW2566221170

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.