Evidence map›Paper›PMID 33708919›Full record

ArticleAnnals of translational medicine2021

Effects of earthworm extract on the lipid profile and fatty liver induced by a high-fat diet in guinea pigs.

Zhenhan Deng, Shanshan Gao, Yunfei An, Yong Huang, Haifeng Liu, Weimin Zhu, Wei Lu, Miao He, Wenqing Xie, Dengjie Yu and 1 more

Open access · diamondAbstract read
In one paragraph

Article in Annals of translational medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 33% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. 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

11 authors at 7 institutions in 2 countries.

Zhenhan DengDepartment of Sports Medicine, Key Laboratory of Tissue Engineering of Shenzhen, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.
Shanshan GaoDivision of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
Yunfei AnDepartment of Animal Science, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China.
Yong HuangDepartment of Sports Medicine, Key Laboratory of Tissue Engineering of Shenzhen, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.
Haifeng LiuDepartment of Sports Medicine, Key Laboratory of Tissue Engineering of Shenzhen, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.
Weimin ZhuDepartment of Sports Medicine, Key Laboratory of Tissue Engineering of Shenzhen, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.
Wei LuDepartment of Sports Medicine, Key Laboratory of Tissue Engineering of Shenzhen, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.
Miao HeDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.
Wenqing XieDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.
Dengjie YuDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.
Yusheng LiDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.
Central South University · CNShenzhen Second People's Hospital · CNShenzhen University Health Science Center · CNHunan Agricultural University · CNShenzhen University · CNUniversity of Colorado Anschutz Medical Campus · USXiangya Hospital Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-alcoholic fatty liver disease (NAFLD), characterized by the accumulation of excess fat in the liver in people who consume little or no alcohol, is becoming increasingly common around the world, especially in developed countries. Extracts from earthworms have been used as alternative therapies for a variety of diseases but not in NAFLD. Therefore, the aim of this study was to investigate the effect of earthworm extract (EE) on diet-induced fatty liver disease in guinea pigs.

methodsEE was extracted, and the effect of EE on the lipid levels and liver damage in guinea pigs fed a high-fat diet (HFD) was assessed. Thirty male guinea pigs at 3 weeks of age were allocated equally to five groups, namely, chow diet, HFD, and HFD with different dosages (0.3, 1.4 and 6.8 µg per kg bodyweight per day) of EE for 4 weeks, and their body weight was monitored throughout the experiment. Liver tissues were examined for gross morphology and histology. Serum levels of total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), alanine transaminase (ALT) and aspartate aminotransferase (AST) were determined using an autoanalyser.

resultsHFD induced NAFLD in guinea pigs. HFD-fed guinea pigs that received EE treatment showed milder increases in the serum levels of TC, TG and LDL-C, as well as in the body weight growth rate, compared to the HFD group without EE supplementation. EE intervention reduced the number of lipid-containing hepatocytes, hepatocellular ballooning and sinusoidal distortion in the liver in HFD-fed animals. ALT in serum was significantly elevated by HFD. No statistically significant difference in ALT levels was found between the chow diet group and the HFD group with EE treatment.

conclusionsThis study demonstrates that the administration of EE suppressed the induction of serum TC, TG and LDL-C in response to HFD. EE also reduced liver damage in HFD-fed guinea pigs. These findings suggest that EE has alleviating effects on dyslipidaemia and liver damage associated with NAFLD.

Indexed as

earthworm extract (EE)fatty liver diseaseHyperlipidaemialipid metabolism

Identifiers

PMID33708919
PMCPMC7944315
OpenAlexW3128393631

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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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.