Review Article

The Great Healing Potential Hidden in Plant Preparations of Antioxidant Properties: A Return to Nature?

Table 6

The protective effects of plant substances against toxicity of antipyretic and analgesic drugs.

ReferencePlant preparation, dose, way and time of treatment, and animalsThe name of drug, dose, way and time of exposure, and negative effectsProtective effects of plant preparationEffects of plant per se

Bouzenna et al. [21]Pinus halepensis L. needles essential oil
Pretreatment, 1% (), with a dose of 1 mL/kg, p.o., for 56 days
Female Wistar rats, 150-200 g
Aspirin-induced liver and kidney damage
600 mg/kg thrice a day for 4 days, p.o.
Weight: body, liver, kidney ↓
Serum: glucose, TC, AST, ALT, LDH, CR, urea ↑
Liver: TBARS ↑, SOD, CAT, GPx ↓
Kidney: TBARS ↑, SOD, CAT, GPx ↓
Weight: body, liver, kidney (+++)
Serum: glucose, TC, AST, ALT, LDH, CR, urea (+++)
Liver: TBARS, SOD, CAT, GPx (+++)
Kidney: TBARS, SOD, CAT, GPx (+++)
None

Ahmad and Zeb [18]Trifolium repens leaf water extract
11 mg of solid weight/mL; 1, 2, or 3 mL of extract per day for 2 weeks
Male albino mice about 28.6 g
Acetaminophen-induced hepatotoxicity 300 mg/kg for 2 weeks
Serum: TC, TG, LDL-c, ALT, AST, ALP, glucose ↑, HDL-c ↓
Blood: RBC, HGB, HCT, PLT ↓, WBC ↑
Liver: TBARS ↑, GSH ↓
1 mL:
Serum: ALP, glucose (0), TC, TG (+), HDL-c, ALT, AST (++), LDL-c (+++)
Blood: PLT (0), HCT (+), WBC (++), RBC, HGB (+++)
Liver: GSH (+), TBARS (++)
2 mL:
Serum: TC (+), ALT, AST, ALP, TG, HDL-c, glucose (++), LDL-cholesterol (+++)
Blood: PLT (+), RBC, HGB, HCT, WBC (+++)
Liver: GSH, TBARS (++)
3 mL:
Serum: HDL-c (0), TC, AST, ALT, AST (++), glucose, LDL-c (+++)
Blood: PLT, RBC, HGB, HCT, WBC (+++)
Liver: TBARS, GSH (++)
Studied only for the 1 mL dose
Serum: TC ↓, HDL-c ↑

Azim et al. [19]Moringa peregrina leaves
70% ethanol extract
200 mg/kg b.w. p.o., one hour prior to acetaminophen, for 4 weeks
Female albino rats, about 160 g
Acetaminophen-induced hepatotoxicity 750 mg/kg b.w., p.o.
Serum: ALT, AST, ALP, GGT ↑
Blood: GSH, CAT, SOD ↓, MDA ↑
Liver: GSH, CAT, SOD ↓, GPx, MDA ↑
Brain: GSH, SOD ↓, GPx and MDA ↑
Serum: ALT, ALP (++), AST, GGT (+++)
Blood: GSH, CAT, SOD, MDA (+++)
Liver: GSH, CAT, SOD, GPx, MDA (+++)
Brain: GPx, MDA (++), GSH, SOD (+++)
Not studied

Mishra et al. [97]Pandanus odoratissimus root ethanolic extract
200 or 400 mg/kg b.w., p.o., once a day for 7 days
Wistar rats 180-200 g
Paracetamol-induced hepatotoxicity
2 g/kg b.w., p.o., on the 5th day
Serum: AST, ALT, ALP, direct bilirubin, total bilirubin, TG ↑
Serum: ALT, AST, ALP, direct bilirubin, total bilirubin, TG (++);
The protective effect was better for the higher dose.
Not studied

Rashid et al. [40]Fagonia olivieri DC. aerial parts
95% methanolic extract
200 and 400 mg/kg, i.g., for 7 days
Male Sprague-Dawley rats, 6-week-old, 180-200 g
Acetaminophen-induced toxicity
750 mg/kg for 7 days, i.g.
Serum: AST, ALT, ALP, LDH, total bilirubin, cholesterol, TG, HDL, LDL ↑
Blood: HGB, WBC ↓, PLT ↑
Liver: weight, CAT, SOD, GPx, GR, GSH and TP ↓, DNA fragmentation and TBARS ↑
Serum: AST, ALT, LDH, LDL (++) both doses, ALP, total bilirubin, TG, HDL (++ 200, +++ 400), cholesterol (+++ 200, 400 ↓)
Blood: HGB (++ both doses), WBC (+++ both doses), PLT (+++ 200, ↑ 400)
Liver: TP (0 200, ++ 400),
DNA fragmentation, SOD, GR, GSH, TBARS (++ both doses), weight, CAT, GPx (++ 200, +++ 400)
400 mg/kg studied only
Serum: TG, HDL, cholesterol ↓
Blood: WBC ↑, HGB ↓
Liver: TBARS ↓

Ebada [95]Chamomilla recutita L. (chamomile) and Cuminum cyminum L. (green cumin) essential oils
(Hashem Brothers for Essential Oils and Aromatic products)
Pretreatment p.o., for 14 days, 400 mg/kg/day (cumin), 250 mg/kg/day (chamomile)
Male Wistar rats, 180-200 g
Acetaminophen-induced hepatotoxicity
1 g/kg p.o., a single dose on the 14th day
Serum: ALT and AST ↑
Liver: GSH ↓, MDA and SOD ↑
Liver histopathology: hepatocyte necrosis, inflammation, degeneration, dilated central vein, hemorrhage ↑
Cumin essential oil:
Serum: ALT and AST (+++)
Liver: GSH (0), MDA (-) and SOD (0)
Liver histopathology: hepatocyte necrosis, inflammation, degeneration, dilated central vein, hemorrhage (++)
Chamomile essential oil:
Serum: ALT (++) and AST (0)
Liver: MDA (-), GSH, SOD (++)
Liver histopathology: hepatocyte necrosis, hemorrhage inflammation, dilated central vein, degeneration (+)
Not studied

Baali et al. [20]Rich-polyphenol (n-butanol) fractions of 80% methanolic extract of Genista quadriflora Munby and 70% methanolic extract of Teucrium polium geyrii Maire
Pretreatment
300 mg/kg daily, p.o., for 10 days
Male Wistar rats, about 142 g
Acetaminophen-induced hepatotoxicity
A single dose of 1 g/kg, p.o.
Plasma: AST, ALT ↑
Liver: SOD, GPx, GR, GSH, GST ↓, CYP2E1, TBARS and mRNA of TNF-α expression ↑
Liver mitochondria: CS and respiratory chain complexes I and II ↓
Genista quadriflora
Plasma: AST, ALT (+++)
Liver: SOD, GPx, GSH, GST, TBARS, CYP2E1 and mRNA of TNF-α expression (+++), GR ↑
Liver mitochondria: CS and respiratory chain complex I (+++), respiratory chain complex II ↑
Teucrium polium geyrii
Plasma: AST, ALT (+++)
Liver: SOD, GPx, GSH, GST, TBARS, CYP2E1 and mRNA of TNF-α expression (+++), GR ↑
Liver mitochondria: CS (+++), respiratory chain complexes I and II ↑
Not studied

Uthaya Kumar et al. [96]Cassia surattensis seed methanol extract
Pretreatment 250 or 500 mg/kg b.w., p.o., once daily for 7 days
Male Swiss albino mice, 6-8-week-old, 25-30 g
Paracetamol-induced hepatotoxicity
A single dose of 1 g/kg b.w., p.o.
Relative liver weight: ↑
Serum: ALT, AST, ALP ↑
Liver: GSH, SOD ↓, MDA ↑
Relative liver weight: (+++ both doses)
Serum: ALT, AST, ALP (++ both doses)
Liver: MDA and GSH (++ 250, +++ 500), SOD (++ 250, ↑ 500)
Not studied

Chinnappan et al. [22]Eurycoma longifolia root water extract Physta® (Biotropics Malaysia)
100, 200 or 400 mg/kg, p.o., 1 hour before paracetamol, for 14 days
Male Wistar rats, 12-week-old, 120-150 g
Paracetamol-induced nephrotoxicity
200 mg/kg daily for 14 days, i.p.
Serum: TP, ALB ↓, creatinine ↑
Blood: urea ↑
Creatinine clearance: ↓
100 mg/kg:
Serum: ALB, creatinine (0), TP (+)
Blood: urea and (0)
Creatinine clearance: (0)
200 and 400 mg/kg:
Serum: TP, ALB, creatinine (+++)
Blood: urea (+++)
Creatinine clearance: (+++)
Not studied

↓: a decrease vs. control; ↑: an increase vs. control; (+): a slight beneficial effect; (++): a distinct beneficial effect; (+++): a complete beneficial effect; (0): no beneficial effect; (-): intensification of the harmful effect.