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. 2022 Jan 13;21(1):931–940. doi: 10.1007/s40200-021-00942-9

Table 1.

Anti-diabetic effects of UD Clinical Trial Studies

Sample size and groups UD dose and type of extract Duration of study outcome References

Intervention group (24 = 11 F + 13 M)

control group

(11 M + 10 F = 21)

100 mg/kg capsule 3 portions a day

-Hydroalcoholic extract

8 weeks Interleukin-6/ CRP↓ [49]

Intervention group (n = 27)

control group

(n = 23)

100 mg/kg

-Hydroalcoholic extract

8 weeks

TAC↑

SOD↑

No significant change in MDA and GPX

[21]

Intervention group

(n = 46)

control group

(n = 46)

one 500 mg capsule every 8 h 3 months

FBS↓

2 h' postprandial glucose↓

HbA1c ↓

[50]

1-aerobic training (Ae)

(n = 10 M)

2- UD

(n = 10 M)

3- (Ae + UD)

(n = 10 M)

4-control group

(n = 10 M)

10 g of UD powder was dissolved in yogurt 15 min before breakfast 8 weeks

FBS↓

FBS was different in each of the 3 groups

[50]

1-aerobic training (Ae)

(n = 10 F)

2-UD

(n = 10 F)

3- (Ae + UD)

(n = 10 F)

4-control group

(n = 10 F)

- - FBS↓, HDL-c ↓ [51]

Intervention

(n = 25)

control group

(n = 24)

100 mg/kg/day 8 weeks Insulin↑, FBS↓ [52]

Intervention group

(n = 30)

control group

(n = 30)

200 mg powder in a capsule per day 90 days

TG ↓

no effect on cholesterol and blood pressure

[53]

Intervention group (n = 25 F)

control group

(n = 25 F)

5 ml UD 3 portions a day

-hydro alcoholic extract

8 weeks

FPG and SGPT↓

HDL, NO and SOD ↑

[54]

Intervention group

(n = 24)

control group

(n = 21)

100 mg per day

-hydro alcoholic extract

8 weeks

TG, plasma atherogenic factors (LDL-C / HDL-C and Total Cholesterol / HDL-C) and SBP ↓,

(HDL-C) ↑

No changes in DBP, TC and LDL-C

[55]

interval training [IT] (n = 10 M)

[IT + UD]

(n = 10 M)

control group

(n = 10 M)

10 g UD powder

3 portions a day

8 weeks FBS↓, Blood pressure↓ [56]

Intervention group (n = 22)

control group

(n = 22)

20 mg kg-1 day-1

-alcoholic extract

8 weeks blood glucose levels↓, AMPK and Insulin ↑ [57]

Intervention group (n = 25)

control group

(n = 25)

100 mg kg-1

3 portions a day

8 weeks FBS and HbA1c↓ [58]

Intervention group (n = 42)

control group

(n = 44)

500 mg capsule

Every 8 h

12 weeks HbA1c↓ [50]

CRP, C-reactive protein; TAC, Total antioxidant activity; SOD,Superoxide dismutase; MDA, Malondialdehyde; GPX,Glutathione Peroxidase; FBS, Fasting Blood Sugar; HbA1c, Hemoglobin A1c.HDL-c, High-density lipoprotein-c; TG, triglyceride; NO, Nitric Oxide; SGPT, Serum glutamic pyruvic transaminase, SBP, Systolic blood pressureAMPK, AMP-activated protein kinase; DB, diastolic blood pressure; TC, Total Cholesterol.