Evidence map›Paper›PMID 30717198›Full record

ArticleInternational journal of molecular sciences2019

Aspalathin-Enriched Green Rooibos Extract Reduces Hepatic Insulin Resistance by Modulating PI3K/AKT and AMPK Pathways.

Sithandiwe E Mazibuko-Mbeje, Phiwayinkosi V Dludla, Candice Roux, Rabia Johnson, Samira Ghoor, Elizabeth Joubert, Johan Louw, Andy R Opoku, Christo J F Muller

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 pooled it
5.0field-weighted citation impact, top 4% 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

37 citing papers in PubMed, 2 syntheses or guidelines pooled it, 75 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  5. Review
  6. Multitargeted Effects ofInternational journal of molecular sciences · 2025
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  17. A Review on the Antidiabetic Properties ofFrontiers in pharmacology · 2022
    Review
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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

9 authors at 3 institutions in 1 country.

Sithandiwe E Mazibuko-MbejeBiomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa. sithandiwe.mazibuko@mrc.ac.za.ORCID 0000-0002-0946-8027
Phiwayinkosi V DludlaBiomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa. pdludla@mrc.ac.za.ORCID 0000-0001-5965-3610
Candice RouxBiomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa. candice.roux@mrc.ac.za.
Rabia JohnsonBiomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa. rabia.johnson@mrc.ac.za.ORCID 0000-0002-6328-0789
Samira GhoorBiomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa. samira.ghoor@mrc.ac.za.
Elizabeth JoubertPlant Bioactives Group, Post-Harvest and Agro-Processing Technologies, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa. JoubertL@agric.ac.za.
Johan LouwBiomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa. johan.louw@mrc.ac.za.
Andy R OpokuDepartment of Biochemistry and Microbiology, University of Zululand, Private Bag X1001, KwaDlangezwa 3886, South Africa. opokuA@unizul.ac.za.
Christo J F MullerBiomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa. christo.muller@mrc.ac.za.ORCID 0000-0001-6821-2120
South African Medical Research Council · ZAStellenbosch University · ZAUniversity of Zululand · ZA

Funding

National Research Foundation 75425National Research Foundation 80618
6 · The paper itself

Abstract

We previously demonstrated that an aspalathin-enriched green rooibos extract (GRE) reversed palmitate-induced insulin resistance in C2C12 skeletal muscle and 3T3-L1 fat cells by modulating key effectors of insulin signalling such as phosphatidylinositol-4,5-bisphosphate 3-kinase/protein kinase B (PI3K/AKT) and AMP-activated protein kinase (AMPK). However, the effect of GRE on hepatic insulin resistance is unknown. The effects of GRE on lipid-induced hepatic insulin resistance using palmitate-exposed C3A liver cells and obese insulin resistant (OBIR) rats were explored. GRE attenuated the palmitate-induced impairment of glucose and lipid metabolism in treated C3A cells and improved insulin sensitivity in OBIR rats. Mechanistically, GRE treatment significantly increased PI3K/AKT and AMPK phosphorylation while concurrently enhancing glucose transporter 2 expression. These findings were further supported by marked stimulation of genes involved in glucose metabolism, such as insulin receptor (

Indexed as

Insulin Resistance3T3 CellsAMP-Activated Protein KinasesAnimalsAspalathusCarnitine O-PalmitoyltransferaseCell LineChalconesDietary SugarsDiet, High-FatForkhead Box Protein O1Gene Expression RegulationHepatocytesHyperglycemiaHypoglycemic AgentsInsulin Receptor Substrate ProteinsAMP-Activated Protein KinasesaspalathinCarnitine O-Palmitoyltransferasecarnitine palmitoyltransferase-1a, ratChalconesDietary SugarsForkhead Box Protein O1Foxo1 protein, ratHypoglycemic AgentsInsulin Receptor Substrate ProteinsIrs1 protein, ratIrs2 protein, ratNerve Tissue ProteinsPalmitic AcidPhosphatidylinositol 3-KinasesPlant ExtractsProto-Oncogene Proteins c-aktReceptor, InsulinAKTAMPKdiabetes mellitusgreen rooibos extractinsulin resistancemetabolic syndromeobesityPI3Ktherapeutic target

Identifiers

PMID30717198
PMCPMC6387445
OpenAlexW2912861305

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.