Evidence map›Paper›PMID 25115571›Full record

ArticleClinical and experimental pharmacology & physiology2014

Systemic administration of 2-hydroxypropyl-β-cyclodextrin to symptomatic Npc1-deficient mice slows cholesterol sequestration in the major organs and improves liver function.

Adam M Lopez, Sandi J Terpack, Kenneth S Posey, Benny Liu, Charina M Ramirez, Stephen D Turley

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental pharmacology & physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

23 citing papers in PubMed, 37 citations in OpenAlex.

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  4. Organ Weights inInternational journal of molecular sciences · 2022
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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

6 authors at 1 institution in 1 country.

Adam M LopezDepartment of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Sandi J Terpack
Kenneth S Posey
Benny Liu
Charina M Ramirez
Stephen D Turley
The University of Texas Southwestern Medical Center · US

Funding

Disordered Cellular Cholesterol Movement, Cell Death, and Multisystem DiseaseR01HL009610 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI TURLEY, STEPHEN DEAN · 1985 to 2013
$7.5M
NHLBI NIH HHS R01 HL009610NHLBI NIH HHS R01HL009610
6 · The paper itself

Abstract

In Niemann-Pick type C (NPC) disease, loss-of-function mutations in either NPC1 or NPC2 result in progressive accumulation of unesterified cholesterol (UC) and glycosphingolipids in all organs, leading to neurodegeneration, pulmonary dysfunction and sometimes liver failure. There is no cure for this disorder. Studies using primarily NPC mouse models have shown that systemic administration of 2-hydroxypropyl-β-cyclodextrin (2HPβCD), starting in early neonatal life, diminishes UC accumulation in most organs, slows disease progression and extends lifespan. The key question now is whether delaying the start of 2HPβCD treatment until early adulthood, when the amount of entrapped UC throughout the body is markedly elevated, has any of the benefits found when treatment begins at 7 days of age. In the present study, Npc1(-/-) and Npc1(+/+) mice were given saline or 2HPβCD subcutaneously at 49, 56, 63 and 70 days of age, with measurements of organ weights, liver function tests and tissue cholesterol levels performed at 77 days. In Npc1(-/-) mice, treatment with 2HPβCD from 49 days reduced whole-liver cholesterol content at 77 days from 33.0 ± 1.0 to 9.1 ± 0.5 mg/organ. Comparable improvements were seen in other organs, such as the spleen, and in the animal as a whole. There was a transient increase in biliary cholesterol concentration in Npc1(-/-) mice after 2HPβCD. Plasma alanine aminotransferase and aspartate aminotransferase activities in 77-day-old 2HPβCD-treated Npc1(-/-) mice were reduced compared with saline-treated controls. The lifespan of Npc1(-/-) mice given 2HPβCD marginally exceeded that of the saline-treated controls (99 ± 1.1 vs 94 ± 1.4 days, respectively; P < 0.05). Thus, 2HPβCD is effective in mobilizing entrapped cholesterol in late-stage NPC disease leading to improved liver function.

Indexed as

2-Hydroxypropyl-beta-cyclodextrinAnimalsbeta-CyclodextrinsCholesterolDisease Models, AnimalIntracellular Signaling Peptides and ProteinsLiverLiver Function TestsMiceMice, Inbred BALB CNiemann-Pick C1 ProteinNiemann-Pick Disease, Type COrgan SizeProteins2-Hydroxypropyl-beta-cyclodextrinbeta-CyclodextrinsCholesterolIntracellular Signaling Peptides and ProteinsNiemann-Pick C1 ProteinNpc1 protein, mouseProteinsbiliary cholesterolbrainhepatosplenomegalylifespanlunglysosomal storage diseaserelative organ weight

Identifiers

PMID25115571
PMCPMC4526211
OpenAlexW1966095387

What OpenQuestion holds

Textmetadata
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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.