Review Article

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

Table 3

The protective effects of plant preparations against toxicity of different chemicals.

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

AlSaid et al. [13]Piper cubeba fruits
70% ethanol extract
Pretreatment 250 or 500 mg/kg for 7 days, p.o.
Male Wistar albino rats 180–200 g
CCl4-induced hepatotoxicity, a single dose of 0.4 mL/kg, i.p.
Serum: ALT, AST, GGT, ALP, bilirubin, LDH ↑
Liver: MDA ↑, NP-SH, CAT, TP ↓
Liver: mRNA expression of TNF-α, IL-6, IL-10, HO-1, iNOS ↑
Serum: ALT, AST, LDH (0 250, ++ 500),
GGT (+ 250, ++ 500), ALP, bilirubin (++ both doses)
Liver: TP (0 250, ++ 500), MDA, CAT (+ 250, ++ 500), NP-SH (++ 250, +++ 500)
Liver: mRNA expression of IL-10 (↑ both doses), TNF-α, IL-6, HO-1, iNOS (++)
Not studied

Bellassoued et al. [14]Mentha piperita L. leaf essential oil
Pretreatment
5, 15, and 40 mg/kg b.w., daily for 7 days, p.o.
Male Wistar rats
200–220 g
CCl4: 1 mL/kg b.w. on the 7th day, i.p.
Serum: ALT, AST, ALP, LDH, GGT, TC, TG, LDL, urea, CR ↑, HDL ↓
Liver: LPO, inflammatory cells and cellular necrosis ↑, SOD, CAT, GPx ↓
Kidney: LPO, glomerular and epithelial cells of the proximal tubules necrosis ↑, SOD, CAT, GPx ↓
Serum: ALT, AST, ALP, LDH, GGT, TC, TG, HDL, LDL, urea, CR (+ 5, ++ 15, 40)
Liver: inflammatory cells and cellular necrosis, LPO, SOD, CAT, GPx (+ 5, ++ 15, and 40)
Kidney: LPO, SOD, CAT, GPx, glomerular and epithelial cells of the proximal tubules necrosis (+ 5, ++ 15, and 40)
40 mg/kg b.w. only studied: none

Simeonova et al. [54]Astragalus monspessulanus L. n-butanolic extract—obtained by successive extraction of 80% methanol extract with CH2Cl2, ethyl acetate, and n-butanol
Pretreatment
100 mg/kg, for 7 days, p.o.
Male Wistar rats
200–220 g
CCl4-induced hepatotoxicity
a single dose 1.25 mL/kg of 10% CCl4 in olive oil
Serum: ALT, AST, ALP ↑
Liver: MDA ↑, GSH, CAT, SOD, GPx, GR, GST ↓
Serum: ALT, AST, ALP (+++)
Liver: GR, GSH, CAT, GPx, GST (++), MDA, SOD (+++)
None

Shah et al. [80]Commelina nudiflora L. methanol extract
Pretreatment for 12 days and 2-day-treatment
150, 300, 450 mg/kg b.w., p.o.
Male Sprague Dawley rats, 150–250 g
CCl4 1.0 mL/kg b.w., two doses on 13th and 14th days
Serum: ALT, AST ↑
Liver: GSH, GST, GPx, GR, CAT, G6PD, QR ↓, LPO, HNE-modified protein adducts, 8-OHdG, TNF-α, IL-6, PGE2
Serum: ALT, AST (++ all doses)
Liver: GSH, GST, GR, CAT, G6PD, QR, LPO, HNE-modified protein adducts, 8-OHdG, TNF-α, IL-6, PGE2 (++ all doses), GPx (++ 150, +++ 300, 450)
450 mg/kg b.w. only studied: none

Yoshioka et al. [78]Sasa veitchii leaf extract
Pretreatment 0.2 mL (1 mL made from 2.82 g of leaves) for 7 days once per day, p.o.
Male ddY mice, 7 weeks
CCl4 3 g/kg a single injection, i.p.
Plasma: ALT, AST, BUN, CR ↑
Liver: MDA, Ca ↑
Kidney: MDA ↑
Plasma: ALT, AST, BUN (++), CR (+++)
Liver: MDA, Ca (++)
Kidney: MDA (+)
None

Lin et al. [82]Chenopodium formosanum Koidz (red quinoa): whole seed powder, 50% ethanolic bran extract, aqueous bran extract
5.13 g/kg of red quinoa whole seed powder (rutin 8.46 mg/kg/day), p.o.
1.54 g/kg of red quinoa bran 50% ethanol extract (rutin 16.4 mg/kg/day), p.o.
1.54 g/kg of red quinoa bran water extract (rutin 3.92 mg/kg/day), p.o.
Male BALB/c mice
CCl4 0.5 mL/kg b.w., two times weekly (Thursday and Sunday) for 6 weeks, i.p.
Serum: AST, ALT, TP, ALB, globulins, bilirubin, CR, BUN ↑,
ALP ↓
Liver: TBARS, ROS, TNF-α, TGF-β1, IL-6 ↑, SOD, CAT ↓
Whole seed powder:
Serum: ALP (0), CR, BUN, ALB, globulins (+), ALT, TP, bilirubin (++), AST (+++)
Liver: TBARS, ROS, TNF-α, TGF-β1, IL-6, SOD, CAT (+++)
Ethanol bran extract:
Serum: ALP (↓), ALB, globulins, BUN (+), CR, ALT, AST, TP, bilirubin (++)
Liver: TGF-β1 (+), ROS (++), TBARS, TNF-α,
IL-6, CAT (+++), SOD (↑)
Water bran extract:
Serum: BUN, ALP (0), CR, bilirubin, ALB, globulins (+), ALT, AST, TP (++)
Liver: CAT, TGF-β1, ROS (+), IL-6 (++), TBARS, TNF-α (+++), SOD (↑)
Not studied

Parvez et al. [83]Solanum surattense leaves
70% ethanol extract
100 and 200 mg/kg b.w., p.o., for 3 weeks
Male Wistar rats, 8-9-week-old, 200-220 g
CCl4 in liquid paraffin (1: 1)
1.25 mL/kg b.w., i.p.
Serum: AST, ALT, ALP, GGT, bilirubin, TC, TG, LDL, VLDL ↑; TP and HDL ↓
Liver: MDA ↑, NP-SH ↓
Serum: AST (0 100, + 200), TP, HDL (0 100, ++ 200), GGT, LDL, VLDL (+ 100, ++ 200) ALT, ALP, bilirubin, TC, TG (++ both doses)
Liver: MDA (0 110, ++ 200), NP-SH (++ both doses)
Not studied

Bahcecioglu et al. [76]Pistacia terebinthus coffee (coffee branded “Harput Çedene Coffee”)
Freshly prepared coffee in drinking water (the content increased by 25% during each preparation, reaching up to 100% at the end of 7 days), for 8 weeks
Male Sprague-Dawley rats about 250 g
Thioacetamide-induced chronic liver injury, 100 mg/kg b.w., i.p., three times weekly for 8 weeks
Plasma: MDA↑
Liver: TNF-α, NF-κB, TGF-β
Liver: inflammation, necrosis, fibrosis ↑
Plasma: MDA (+)
Liver: TNF-α, NF-κB, TGF-β (++)
Liver: inflammation, necrosis, fibrosis (++)
Liver: TGF-β

Thomaz al. [84]Eugenia dysenterica leaf hydroalcoholic extract
10, 100, 300 mg/kg/day, p.o., for 45 days starting from the 45th day of AlCl3 administration
Male Swiss mice, 25-30 g
AlCl3-induced neurotoxicity
100 mg/kg/day p.o., for 90 days
Brain cortex: MDA ↑, SOD ↓
Hippocampus: MDA ↑, CAT, SOD ↓
Hippocampus CA1 area: % of viable neurons ↓, % of necrotic neurons ↑
Brain cortex: MDA and SOD (+++) all doses
Hippocampus: CAT (0 10, +++ 100 and 300), MDA and SOD (+++ all doses)
Hippocampus CA1 area:
% of viable neurons (+++ 10, ++ 100, and 300),
% of necrotic neurons (0 10, ++ 100, and 300)
Not studied

Feng et al. [74]Defatted walnut meal (Shaanxi Sea Ecological Agriculture Co., Ltd., Shangluo, China) protein hydrolysates
1 g/kg per day, for 90 days, i.g.,
Male wild-type Kunming mice, 8 weeks
Neurotoxicity induced by D-galactose 200 mg/kg/day, s.c. (6 hours after plant material), and AlCl3 (100 mg/kg in the drinking water) for 90 days
Brain: SOD, GPx, ChAT ↓, MDA, AchE, TNF-α, IL-1β
Brain: SOD, GPx, ChAT (++), MDA, AchE, TNF-α, IL-1β (+++)None

Kukongviriyapan et al. [81]Antidesma thwaitesianum
95% ethanolic extract of the fruits pomace
100 or 300 mg/kg once daily, p.o.
Male Sprague-Dawley rats, 200-220 g
Nω-nitro-L-arginine methyl ester-induced nitric oxide deficiency,
50 mg/kg/day in drinking water, for 3 weeks
Blood pressure: SBP, DBP ↑
Plasma: MDA, PC ↑, NO3-/NO2- level ↓
Carotid artery: superoxide formation ↑
Aortic tissue: eNOS protein expression ↓
Blood pressure: SBP, DBP (++ both doses)
Plasma: PC (0 100, +++ 200), MDA, NO3-/NO2- level (++ 100, +++ 200)
Carotid artery: superoxide formation (++ 100, +++ 200)
Aortic tissue: eNOS (+ 100, +++ 200)
None

Yang et al. [77]Rumex japonicus Houtt. roots
95% ethanolic extract
4 mg/mL and 8 mg/mL, topically to the skin and ears, daily for 3 weeks
Female Balb/c mice, 5-week-old
DNCB- (1-chloro-2,4-dinitrobenzene-) induced atopic dermatitis
200 μL of 0.5% DNCB (in acetone-olive oil mixture) to the dorsal skin and ear, on days 1–3
Ear thickness ↑
Lymph nodes and spleen weights ↑
Skin: mast cell number ↑
Ear thickness: (++ both doses, a better effect for a higher dose)
Weight of lymph nodes: (+ 4, ++ 8)
Weight of spleen: (++ both doses)
Skin: mast cell number (++ both doses, a better effect for a higher dose)
Not studied

Zheng et al. [85]Dracocephalum heterophyllum 95% ethanol extract
Pretreatment 2 h before Concanavalin A 20 mg/kg b.w., i.p.
Female BALB/c mice, 6-8-week-old
Concanavalin A-induced hepatitis sublethal dose 15 mg/kg b.w., i.v.
Serum 8, 16, and 24 hours after Concanavalin A: ALT, AST, IFN-γ, TNF-α
Liver: MDSCs ↓, Kupffer cells ↑
Serum 8, 16, and 24 hours after Concanavalin A: ALT, AST, IFN-γ, TNF-α (++)
Liver: Kupffer cells (+++), MDSCs ↑
Liver: Kupffer cells ↑

Badr and Naeem [75]Physalis peruviana cape goldenberry fruit powder
20% () fruit powder addition to diet, for 35 days
Male albino rats, 1 month, 140-150 g
Aflatoxins B1 and G1
850 ng/kg b.w./day for 35 days
Weight gain, food intake ↓
Blood: HGB, RBC, PLT ↓, HCT, WBC ↑
Serum: Fe, T-AOC, cholesterol ↓, TG, LDL-c, HDL-c, ALT, AST, ALP, MDA ↑
Liver: SOD, CAT ↓, MDA ↑
AFB1
Weight gain (++), food intake (+++)
Blood: PLT, HCT, WBC, HGB (++), RBC (+++)
Serum: MDA (+), LDL-c, HDL-c, Fe, cholesterol, T-AOC, TG, ALT, AST, ALP (++)
Liver: SOD, MDA (++), CAT (+++)
AFG1
Weight gain (++), food intake (+++)
Blood: PLT, HCT, WBC, HGB (++), RBC (+++)
Serum: LDL-c, HDL-c, Fe, cholesterol, TG, ALT, AST, ALP, MDA (++), T-AOC (+++)
Liver: SOD, MDA (++), CAT (+++)
None

Xu et al. [79]Polysaccharides from Morinda officinalis processed root (processed root by Beijing Sanhe Pharmaceutical Co., Ltd.)
500 mg/kg i.g., once a day for 18 days
Female Balb/c mice
Concanavalin A-induced liver damage 10 mg/kg i.v., once a week
Weight index: liver and kidney ↑, thymus ↓
Serum: ALT and AST ↑
Liver: CAT↓, MDA ↑
Weight index: kidney (0), liver (+), thymus (+++)
Serum: ALT and AST (+++)
Liver: CAT, MDA (+)
Not studied

Ahmed et al. [86]Pulicaria petiolaris aerial part methanol extract
Pretreatment 50 or 100 mg/kg, p.o., for 5 days
Male Swiss albino mice, 25-27 g
LPS-induced hepato- and cardiotoxicity, a single dose 10 mg/kg i.p.
Serum: ALT, AST, ALP, LDH, CK-MB, cTnI ↑
Liver: GSH, SOD ↓, MDA, NF-κB, TNF-α, IL-6, average severity of histopathological lesions ↑
Heart: GSH, SOD ↓, MDA, NF-κB, TNF-α, IL-6, average severity of histopathological lesions ↑
Serum: ALT, AST, ALP, CK-MB, cTnI (++ both doses), LDH (++ 50, +++ 100)
Liver: average severity of histopathological lesions (+ 50, ++ 100), NF-κB, (++ both doses), MDA, IL-6, TNF-α, GSH (++ 50, +++ 100),
SOD (+++ both doses)
Heart: IL-6, NF-κB, TNF-α, GSH, SOD (++ both doses), average severity of histopathological lesions and MDA (++ 50, +++ 100)
100 mg/kg only studied:
Serum: LDH ↓

Raish et al. [87]Lepidium sativum seed ethanol extract
Pretreatment 150 and 300 mg/kg p.o., for 14 days
Male Wistar rats, 2-month-old, 180-205 g
D-Galactosamine+LPS-induced hepatotoxicity 400 mg/kg and 30 μg/kg, respectively, i.p., on the 15th day
Serum: ALT, ALP, AST, bilirubin, GGT ↑
Liver: CAT, GSH, SOD ↓, MDA, MPO, NF-κB9 (p65) DNA binding activity, mRNA expression of TNF-α, IL-6, IL-10, HO-1, iNOS ↑
Serum: ALT, ALP, AST, GGT (++ both doses), bilirubin (++ 150, +++ 300)
Liver: CAT (+ 150, ++ 300), GSH, SOD, MDA, MPO, NF-κB9(p65) DNA binding activity, mRNA expression of TNF-α, IL-6, HO-1, iNOS (++ both doses)
Liver: expression of IL-10 (+ 150, ↑ 300)
The greater the dose the more distinct the effect
Not studied

Albrahim and Binobead [30]Moringa oleifera leaf water extract
200 mg/kg b.w., i.g., for 4 weeks
Male albino rats, 9-10 weeks, 110-130 g
Monosodium glutamate-induced hepatotoxicity, 5 mg/kg b.w., i.g., for 4 weeks
Serum: TP, globulins ↓, ALT, AST ↑
Liver: CAT, SOD, GST, GSH ↓, MDA, DNA damage, expression of PCNA and P53 proteins ↑
Serum: globulins (+), TP (++), ALT, AST (+++)
Liver: CAT, SOD, GST, GSH, MDA (++); DNA damage (++), expression of PCNA and P53 proteins (++)
None

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