Evidence map›Paper›PMID 31993098›Full record

ReviewInternational journal of physiology, pathophysiology and pharmacology2019

How does the brain remove its waste metabolites from within?

Yiming Cheng, James Haorah

Open access · greenAbstract readReview
In one paragraph

Review in International journal of physiology, pathophysiology and pharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

21 citing papers in PubMed, 29 citations in OpenAlex.

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  19. Clearance Systems in the Brain, From Structure to Function.Frontiers in cellular neuroscience · 2021
    Review
  20. Review
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

2 authors at 1 institution in 1 country.

Yiming ChengLaboratory of Neurovascular Inflammation and Neurodegeneration, Department of Biomedical Engineering, Center for Injury Bio Mechanics, Materials and Medicine, New Jersey Institute of Technology Newark, NJ 07102, United States.
James HaorahLaboratory of Neurovascular Inflammation and Neurodegeneration, Department of Biomedical Engineering, Center for Injury Bio Mechanics, Materials and Medicine, New Jersey Institute of Technology Newark, NJ 07102, United States.
New Jersey Institute of Technology · US

Funding

Mechanisms of Atherosclerosis in Alcohol IntakeR21AA022734 · NIAAA · NEW JERSEY INSTITUTE OF TECHNOLOGY · PI HAORAH, JAMES · 2014 to 2015
$396k
Mechanisms of Neuroprotection by Astrocytes in Alcohol AbuseR21AA020370 · NIAAA · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI HAORAH, JAMES · 2011 to 2012
$390k
NIAAA NIH HHS R21 AA020370NIAAA NIH HHS R21 AA022734
6 · The paper itself

Abstract

The brain is the command center of the body that regulates the vital functions of circulation, respiration, motor function, metabolic activities, or autonomic nervous system outcomes. The brain coordinates these continuous activities at the expense of huge energy utilization. This energy demand is achieved by active transport of nutrients across the endothelial blood-brain barrier (BBB). This review discusses the barrier interfaces in the CNS that include the BBB, blood-spinal cord barrier, the epithelial choroid plexus, and the epithelial arachnoid. While transporting of nutrients across the BBB is a normal physiological function, the trafficking of xenobiotics and inflammatory cells/agents across these interfaces is harmful to brain cells. This leads to production of waste metabolites in the brain. Clearance of these waste metabolites maintains the normal brain homeostasis, while aggregation is detrimental to neurological complications. Since the CNS lacks lymphatic system, the CSF serves as the clearance path for water-soluble peptides/solutes, but not large size waste metabolites like Aβ protein. In particular, this review will focus on the mechanisms of waste metabolites clearance paths in the CNS. This will include the recently discovered waste metabolites movement from interstitial space (IS) directly into perivascular clearance (PVC), or via IS-CSF-PVC, and its exchange from PVC to circulation. Concluding remarks will discuss the therapeutic approach to improve the clearance mechanisms for ameliorating neurological diseases.

Indexed as

blood-brain barrier (BBB)Central nervous system (CNS) clearancecerebrospinal fluid (CSF)interstitial fluid (ISF)perivascular space

Identifiers

PMID31993098
PMCPMC6971497
OpenAlexW3005672667

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.