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Table 1 Basic characteristics of the included studies

From: Effects of quercetin on polycystic ovary syndrome in animal models: a systematic review and meta-analysis

Study

Country

Animal characteristics

Model

Modeling material

Method of administration

Dose of quercetin

T

E

C

Outcome measures

Neisy A.,2019 [14]

Iran

female SD rats (180 g)

PCOS

DHEA

Be injected with 6 mg/100 g/d DHEA dissolved in 0.2 ml sesame oil for 21 days to induce PCOS

15 mg/kg Q dissolved in 0.5 mL 10% ethanol

30d

Q

Didn’t receive any treatment

①②③⑫

Shah M.Z.U.H.,2023 [15]

India

mature parkes strain mice (18–21 g)

PCOS

LETZ

Be given 6 mg/kg LETZ for 21 days to induce PCOS

125 mg/kg Q

45d

Q

Didn’t receive any treatment

④⑤⑥⑧⑨

Zheng S.Y.,2022 [16]

China

female SD rats (21-day-old)

PCOS

DHEA

Be injected with 6 mg/100 g/d DHEA dissolved in 0.2 ml sesame oil for 20 days to induce PCOS

100 mg/kg Q dissolved in 2 ml 1% sodium carboxymethyl cellulose solution

28d

Q

2 ml 1% sodium carboxymethylcellulose solution

③⑥⑦⑧

Wang Z.Z.,2017 [17]

China

female Wistar rats (21-day-old)

PCOS

DHEA

Be injected with 6 mg/100 g/d DHEA dissolved in 0.2 ml sesame oil for 20 days to induce PCOS

2 mL of Q solution (100 mg/kg)

28d

Q

2 mL of 1% CMC

â‘¡â‘¢

Olaniyan O.T.,2020 [8]

Nigeria

prepubertal female Wistar rats (21-day-old) (18 ± 1.58 g)

PCOS

DHEA

Be injected with 6 mg/100 g/d DHEA dissolved in 0.2 ml corn oil to induce PCOS

100 mg/kg Q

15d

Q

Didn’t receive any treatment

⑨⑩⑪

Mahmoud A.A.,2022 [18]

Egypt

prepubertal female Wistar rats (23-day-old) (26.45 ± 0.06 g)

PCOS

DHEA

Be injected wtih 60 mg/kg DHEA dissolved in 1 ml sesameoil for 41 days to induce PCOS

25 mg/kg Q dissolved in 0.05 ml saline

28d

Q

saline

⑥⑦⑧

Mihanfar A.,2021 [19]

Iran

female Wistar rats (42-day-old)

PCOS

LETZ

Be given 1 mg/kg LETZ dissolved in CMC 0.5% for 21 days to induce PCOS

100 mg/kg Q dissolved in CMC 0.5%

30d

Q

Didn’t receive any treatment

①②③④⑤⑥

Jahan S.,2018 [20]

Pakistan

adult female SD rats (60-70-day-old) (180 ± 10 g)

PCOS

LETZ

Be given 1 mg/kg LETZ dissolved in 0.5% CMC to induce PCOS

30 mg/kg Q

22d

Q

Didn’t receive any treatment

④⑤⑪

Jiang X.J.,2022 [21]

China

SPF female SD rats (21-23-day-old)

PCOS

LETZ

Be given 1 mg/kg LETZ dissolved in 0.4 ml CMC to induce PCOS

30 mg/kg Q dissolved in 0.5 mL 10% ethanol

28d

Q

0.5 mL 10% ethanol

â‘ â‘¡â‘«

Yang Z.,2021 [22]

China

minor female SD rats (21-day-old) (80–90 g)

PCOS

DHEA

Be injected with 6 mg/100 g/d DHEA dissolved in 0.2 ml olive oil for 20 days to induce PCOS

100 mg/kg Q dissolved in 2 ml CMC

1d

Q

2 mL CMC

⑥⑦⑩⑪

  1. Abbreviations SD: Sprague–Dawley; Q: quercetin; PCOS: polycystic ovary syndrome; DHEA: dehydroepiandrosterone; LETZ: letrozole; CMC: carboxy methylcellulose; T: time; E: experimental group; C: control group
  2. Notes ① Fasting insulin serum levels; ② fasting blood glucose levels; ③ HOMA-IR; ④ cholesterol levels; ⑤ triglyceride levels; ⑥ testosterone levels; ⑦ luteinizing hormone levels; ⑧ luteinizing hormone/follicle stimulating hormone ratio; ⑨ vascular endothelial growth factor levels; ⑩ malondialdehyde levels; ⑪ superoxide dismutase levels; and ⑫ the expression of GLUT4 mRNA