Table 7.
In vivo activities of T. algeriensis extracts.
Extract | Doses | Model | Activity | Effects | Ref. |
---|---|---|---|---|---|
Algeria | |||||
Leaves | |||||
80% MeOH | 200, 400, and 600 mg/kg | Male rats | Anti-inflammatory activity | Significant mild reduction in edema thickness using 400 mg/kg by up to 30% | [22] |
Leukocyte's recruitment | A dose-dependent reduction in the total leukocyte number at three doses tested by up to 62% | ||||
200, 400, and 600 mg/kg | Swiss albino mice | Acetic acid-induced vascular permeability | Attenuation of vasodilation and decreased vascular permeability in mice at 400 or 600 mg/kg by 63 and 58%, respectively | ||
200 and 400 mg/kg | Antinociceptive activity by hot plate test | A dose-dependent increase in response latency using 200 and 400 mg/kg by up to 200% | |||
200 and 400 mg/kg | Antinociceptive activity by acetic acid-induced abdominal writhing | 94% reduction of the writhing response using 400 mg/kg | |||
200 and 400 mg/kg | Male Wistar rats | Heat hyperalgesia | Restoration of heat response latency when measured at day 14 post chronic constriction injury (CCI) by about 160 and 200% using 200 and 400 mg/kg, respectively | [47] | |
Mechanical hyperalgesia (pinprick test) | Increased the withdrawal time of injured hind paw by 8.4- and 6-folds after 7 and 14 days, respectively | ||||
Acetone drop test (paw cold allodynia) | Decreased cold allodynia score by about 16- and 10-folds after 7 and 14 days using 200 and 400 mg/kg, respectively | ||||
Paint-brush test (mechanical dynamic allodynia) | Attenuated the dynamic allodynia score when assessed at day 7 by up to 1.75-folds Normalization of dynamic response score by 400 mg/kg dose level when measured at day 14 post surgery |
||||
Aqueous extract | 2000 and 5000 mg/kg | Albino Wistar rats | Acute toxicity study for 14 days | No mortality or signs of toxicity and no significant differences in body weight, food consumption, and absolute organ weights between controls and treated animals | [119] |
| |||||
Aerial part | |||||
MeOH–H2O | 200, 400, and 800 mg/kg | Albino male mice | Safety evaluation | No influence on the levels of AST and ALT A significant reduction in phosphatase alkaline levels by up to 35% using 400 mg/kg No effect on the levels of urea and creatinine |
[24] |
Antioxidant activity | Increased the plasma antioxidant levels by 3-folds (22% of inhibition) using 800 mg/kg | ||||
Increased the iron reducing ability (908 μM FeSO4 eq/mL) using 800 mg/kg by 2-folds compared to the nontreated group (405 μM FeSO4 eq/mL) Improved CAT activity by 24 to 86% using 200 to 800 mg/kg Increased GSH levels in mice treated with 400 and 800 mg/kg (34 to 45 nmol/mL) compared to those of the nontreated group (30 nmol/mL) Decreased the MDA levels in the plasma of treated groups at 200 and 400 mg/kg by 50 and 63%, respectively | |||||
Tunisia | |||||
Aerial part | |||||
EO | 180 mg/kg per day dissolved in normal saline | Sprague Dawley rats | Body weight gain, toxicity, and mortality | Body weight gain, no mortality, and no sign of toxicity after 15 days of experiment | [118] |
Assessment of lipid profile | Decreased the MDA levels (743.57 ± 41.12 nmol MDA/mg protein) compared to the control group (3648.47 ± 33.22 nmol MDA/mg protein) | ||||
Assessment of antioxidant defense enzymes | Prevented the toxicity effect of H2O2 on the nonenzymatic antioxidant GSH level and the activities of SOD, CAT, GPx, and GST | ||||
Histopathological examination | No pathological change, normal histoarchitecture, and significant reduction in neuronal damage induced by H2O2 | ||||
AChE inhibition | Decreased the AChE activity by up to 31.5% | ||||
150 mg/kg | Adult male Wistar rats | Reproductive organs weights | Weight gain by up to 92% | [121] | |
Sperm morphology | No effect on sperm's morphology, counts, and mobility | ||||
Sperm count and motility | |||||
Sperm viability | Increased the sperm's viability by up to 46% | ||||
Histopathological studies | Improvement in morphological abnormalities (amorphous head, hookless head, doublet heads, compact head tail with a cytoplasmic droplet, irregular tail, and coiled tail) of sperms | ||||
DNA fragmentation analysis using gel electrophoresis | Protection against H2O2-induced DNA fragmentation in testis | ||||
Lipid peroxidation | Reduction of the levels of MDA in testicular cells induced by H2O2 at 1 mmol/L | ||||
Assessment of nonenzymatic antioxidants | Prevention of the H2O2-induced alterations in GSH level | ||||
Protein estimation | Increase in total protein | ||||
180 mg/kg per day | Sprague Dawley rats | Hepatic and renal functional marker enzymes | Attenuation of the increase in AST and reduction in urea and creatinine levels in H2O2-treated group | [122] | |
Enzymatic antioxidants and lipid profile | Recovered the levels of CAT (up to 150% increase), SOD (up to 233% increase), GST (up to 15.7% increase) and GPx (up to 71.4% increase) activities, and GSH (up to 98% increase) | ||||
Histopathological examination | No histopathological changes in the liver and kidney Alleviation of the injuries in the glomeruli and proximal tubules (77.7% reduction in damage score) |
||||
Body and organ weights | Prevention of H2O2-induced liver, kidney, and weight loss | ||||
54, 117, and 180 mL/kg | Adult male and female Wistar rats | Histology of gastric lesions | Lesions inhibition mainly at doses of 180 mg/kg for male rats (88%) and between 117 and 180 mg/kg for female rats (96.25 and 98.85%) | [20] | |
Assessment of enzymatic and nonenzymatic antioxidants | Increase in SOD, CAT, GPx, and GST activities and GSH content | ||||
Measurement of mucus production | Increase in the mucus production of gastric mucosa compared to control group | ||||
Acute toxicity study in rodents | No signs of toxicity and absence of abnormal organic damage to the rats' organs |
AChE: acetylcholine; ALP: alanine transaminase; AST: aspartate transaminase; CAT: catalase; CCI: chronic constriction injury; CDNB: 2,4-dinitrochlorobenzene; GPx: glutathione peroxidase; GSH: glutathione; GST: glutathione S-transferases; MDA: malondialdehyde; SOD: superoxide dismutase. All experiments were done orally.