Evidence map›Paper›PMID 32527245›Full record

SynthesisBMC complementary medicine and therapies2020

African potato (Hypoxis hemerocallidea): a systematic review of its chemistry, pharmacology and ethno medicinal properties.

Celia M J Matyanga, Gene D Morse, Mazuru Gundidza, Charles F B Nhachi

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in BMC complementary medicine and therapies, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

9 citing papers in PubMed, 28 citations in OpenAlex.

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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

4 authors at 3 institutions in 2 countries.

Celia M J MatyangaDepartment of Clinical Pharmacology, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe. celiammj@yahoo.com.ORCID http://orcid.org/0000-0002-9799-136X
Gene D MorseCenter for Integrated Global Biomedical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA.
Mazuru GundidzaDepartment of Pharmaceutical Technology, School of Industrial Sciences and Technology, Harare Institute of Technology, Belvedere, Harare, Zimbabwe.
Charles F B NhachiDepartment of Clinical Pharmacology, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe.
University of Zimbabwe · ZWHarare Institute of Technology · ZWUniversity at Buffalo, State University of New York · US

Funding

HIV Research Training ProgramD43TW010313 · FIC · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI Charles Enos Chiedza Maponga, Gene D. Morse · 2016 to 2026
$3.2M
Antiretroviral Pharmacology Training in Resource Poor CountriesD43TW007991 · FIC · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI MORSE, GENE D. · 2009 to 2015
$1.6M
FIC NIH HHS D43 TW007991FIC NIH HHS D43 TW010313FIC NIH HHS D43TW010313, D43TW007991 and D43TW007991 01A2S1
6 · The paper itself

Abstract

backgroundAfrican Potato (hypoxis hemerocallidea), is used for enhancing immune system in Southern Africa. It is among the plants of intense commercial and scientific interest; hence, the aim of this study was to describe its chemistry and pharmacology.

methodsPubMed, Cochrane Controlled Trials Register (CENTRAL) and Google Scholar were searched independently for relevant literature. The last search occurred in October 2018. Other research material was obtained from Google. The following search terms were used, but not limited to: "African Potato", "hypoxis", "hemerocallidea", "rooperol." Articles that were explaining the chemistry and pharmacology of hypoxis hemerocallidea were included.

resultsThirty articles from PubMed, Cochrane and Google Scholar were eligible. Three webpages were included from Google. Results showed that the tuberous rootstock (corm) of African Potato is used traditionally to treat wasting diseases, testicular tumours, insanity, barrenness, impotency, bad dreams, intestinal parasites, urinary infection, cardiac disease and enhancing immunity. The plant contains hypoxoside, which is converted rapidly to a potent antioxidant, rooperol in the gut. The corm contains sterols, sterol glycosides, stanols, terpenoids, saponins, cardiac glycosides, tannins and reducing sugars. A dose of 15 mg/kg/day of hypoxoside is reportedly therapeutic. Preclinical studies of African Potato have shown immunomodulation, antioxidant, antinociceptive, hypoglycaemic, anti-inflammatory, anticonvulsant, antibacterial, uterolytic, antimotility, spasmolytic and anticholinergic effects. The common side effects of African Potato are nausea and vomiting, which subside over time. In vitro, African Potato demonstrated inhibitory effects on CYP1A2, 2C9, 2D6, 3A4, 3A5, CYP19-metabolism and induction of P-glycoprotein. In vivo, it did not alter the pharmacokinetics of efavirenz or lopinavir/ritonavir.

conclusionAfrican Potato is mainly used as an immunostimulant. The exact mechanisms of action for all the pharmacological actions are unknown. More research is required to substantiate claims regarding beneficial effects. There are many research gaps that require investigation including pharmacokinetic interactions with conventional drugs, especially those used in HIV/AIDS.

Indexed as

AfricaCatecholsHumansHypoxisMedicine, African TraditionalPlant ExtractsPlants, MedicinalCatecholsPlant ExtractsrooperolAfrican potatoChemistryHypoxis hemerocallideaPharmacokineticsPharmacologyTraditional medicine

Identifiers

PMID32527245
PMCPMC7289225
OpenAlexW3034791224

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.