Evidence map›Paper›PMID 34806654›Full record

ArticleAsian journal of andrology

Metabolic enzyme gene polymorphisms predict the effects of antioxidant treatment on idiopathic male infertility.

Hong-Yan Zhang, Yi Mu, Pan Chen, Dong-Dong Liu, Ke-Hang Chen, Qi Yu, Jun He, Fa Sun, Jun-Ping Xing, Kai-Fa Tang

Open access · goldAbstract read
In one paragraph

Article in Asian journal of andrology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
2.7field-weighted citation impact, top 10% 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, 20 citations in OpenAlex.

  1. Review
  2. Comparative Study on the Sperm Proteomes of Horses and Donkeys.Animals : an open access journal from MDPI · 2024
    Article
  3. Article
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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

10 authors at 4 institutions in 1 country.

Hong-Yan ZhangDepartment of Respiratory Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Yi MuDepartment of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Pan ChenDepartment of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Dong-Dong LiuDepartment of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Ke-Hang ChenDepartment of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Qi YuDepartment of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Jun HeDepartment of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Fa SunDepartment of Urology, People's Hospital of Guizhou Province, Guiyang 550002, China.
Jun-Ping XingDepartment of Urology, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an 710061, China.
Kai-Fa TangDepartment of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China.
Guiyang Medical University · CNAffiliated Hospital of Guizhou Medical University · CNFirst Affiliated Hospital of Xi'an Jiaotong University · CNGuizhou Provincial People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To explore the relationship between genetic polymorphisms of metabolic enzymes such as CYP1A1, CYP2D6, GSTM1, GSTT1, and GSTP1 and idiopathic male infertility. By observing the efficacy of antioxidants in the treatment of idiopathic male infertility, the effect of metabolic enzyme gene polymorphisms on antioxidant therapy in patients with idiopathic male infertility was prospectively studied. This case-control study included 310 men with idiopathic infertility and 170 healthy controls. The cytochrome P450 1A1 (CYP1A1), cytochrome P450 2D6 (CYP2D6), glutathione S-transferase M1 (GSTM1), glutathione S-transferase T1 (GSTT1), and glutathione S-transferase P1 (GSTP1) genotypes in peripheral blood samples were analyzed by polymerase chain reaction (PCR) and PCR-restriction fragment length polymorphism (PCR-RFLP). The idiopathic male infertility group was treated with vitamin C, vitamin E, and coenzyme Q10 for 3 months and followed up for 6 months. GSTM1(-), GSTT1(-), and GSTM1/T1(-/-) in the idiopathic male infertility groups were more common than those in the control group. The sperm concentration, motility, viability, mitochondrial membrane potential (MMP), and seminal plasma total antioxidant capacity (T-AOC) level in patients with GSTM1(-), GSTT1(-), and GSTM1/T1(-/-) were lower than those in wild-type carriers, and the sperm DNA fragmentation index (DFI), 8-hydroxy-2'-deoxyguanosine (8-OH-dG), and malondialdehyde (MDA) and nitric oxide (NO) levels were higher. Therefore, oxidative damage may play an important role in the occurrence and development of idiopathic male infertility, but antioxidant therapy is not effective in male infertility patients with GSTM1 and GSTT1 gene deletions.

Indexed as

Cytochrome P-450 CYP1A1Infertility, Male8-Hydroxy-2'-DeoxyguanosineAntioxidantsCase-Control StudiesCytochrome P-450 CYP2D6Genetic Predisposition to DiseaseGenotypeGlutathione S-Transferase piGlutathione TransferaseHumansMalePolymorphism, GeneticSemen8-Hydroxy-2'-DeoxyguanosineAntioxidantsCytochrome P-450 CYP1A1Cytochrome P-450 CYP2D6Glutathione S-Transferase piGlutathione Transferasegeneinfertilitymetabolic enzymeoxidative stresspolymorphisms

Identifiers

PMID34806654
PMCPMC9295464
OpenAlexW3212357356

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.