scholarly journals Alpha-Lipoic Acid and Ginkgo Biloba Ameliorate Testicular Dysfunctions Induced by Silver Nanoparticles in Rats

2021 ◽  
Author(s):  
Hossam G. TOHAMY ◽  
mohamed lebda ◽  
kadry sadek ◽  
mohamed elfeky ◽  
yasser elsayed ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Mrna Expression ◽  
Lipoic Acid ◽  
Ginkgo Biloba ◽  
Transforming Growth Factor ◽  
Serum Testosterone ◽  
Treated Group ◽  
Serum Testosterone Level ◽  
Albino Rats ◽  
Alpha Lipoic Acid

Abstract Silver nanoparticles (AgNPs) are more commonly utilised in medicine, however they have negative effects on the majority of organs, including the reproductive system. AgNPs were reported to be able to reach the testes due to their small size, which allows them to pass through blood testicular barriers. The goal of this study was to see if LA (alpha lipoic acid) or GB (ginkgo biloba) might protect adult rat testes after intraperitoneal injection of AgNPs. Forty male healthy adult Wister albino rats were randomly assigned to four groups (10 rats each); control, AgNPs-intoxicated group intraperitoneally injected AgNPs 50 mg/kg b.w, 3 times a week, LA + AgNPs group intoxicated with AgNPs and orally gavaged with 100 mg LA/kg b.w, and GB + AgNPs group injected with AgNPs and orally given GB extract 120 mg/kg b.w were continued for 30 consecutive days. Biochemical changes in testicular tissue (testosterone, ACP, and Prostatic acid phosphatase), oxidative indices in testicles tissues, mRNA expression of pro-apoptotic (BAX) and anti-apoptotic (BCL-2) biomarkers, histological, and immunohistochemical changes were studied. Significant decrease in serum testosterone level and elevation in ACP and PACP enzyme activity in AgNPs treated group than in the control. In addition, lowering in tGSH, GSH GR, GPx and elevation MDA and GSSG were observed in AgNPs treated group than control. Decreasing in mRNA expression thirodexin-1 (Txn-1), transforming growth factor-1β (TGF-1β), anti-apoptic (BCL-2) and elevation the expression of proapoptic biomarkers (BAX) in the testis homogenates of rats exposed to silver nanoparticles. Strong positive action to BAX and lowering the action of Ki-67antibody were observed. Because of their antioxidant, anti-inflammatory, and anti-apoptotic properties, co-treatment with LA or GB may be beneficial in reducing the harmful effects of AgNPs on the testicles.

scholarly journals Melatonin and alpha lipoic acid attenuate lopinavir/ritonavir - induced testicular toxicity in albino rats

2016 ◽  
Vol 62 (2) ◽  
pp. 17-24
Author(s):  
Elias Adikwu ◽  
Brambaifa Nelson ◽  
Wolfe Atuboyedia Obianime
Keyword(s):  
Lipoic Acid ◽  
Serum Testosterone ◽  
Sperm Parameters ◽  
Oral Exposure ◽  
Albino Rats ◽  
Sperm Cells ◽  
Testicular Toxicity ◽  
Alpha Lipoic Acid ◽  
Testosterone Levels ◽  
Oral Doses

The use of lopinavir/ritonavir (LPV/r) could be associated with testicular toxicity as a limiting factor. The present study evaluated the effects of melatonin (MT) and alpha lipoic (ALA) acid on LPV/r–induced testicular toxicity in male albino rats. Eighty five male albino rats used for this study were randomized into 6 groups (A-F). Rats in groups A1 and A2 served as placebo and solvent control and were orally exposed to water and 1% ethanol, respectively. Rats in group B were exposed to oral doses of MT (10 mg kg-1/day), ALA (10 mg kg-1/day) and combined doses of MT and ALA, respectively. Rats in group C were exposed to oral doses of LPV/r (22.9/5.71 - 91.4/22.9 mg kg-1/ day), respectively. Rats in group D-F were exposed to oral doses of MT (10 mg kg-1/day), ALA (10 mg kg-1/day) and combined doses of MT and ALA prior to oral exposure to LPV/r (22.9/5.71 - 91.4/22.9 mg kg-1/day), respectively. At the end of 60 days of exposure to drugs, rats were sacrificed; blood was collected and serum extracted and evaluated for testosterone. Testes were collected and evaluated for sperm parameters. LPV/r-treated rats showed significant (P<0.05) and dose-dependent decreases in sperm count, sperm motility, sperm viability and serum testosterone levels with increases in abnormal sperm cells, debris, and primordial sperm cells when compared to placebo control. However, LPV/r-induced changes in sperm parameters and serum testosterone levels were attenuated in rats pretreated with MT and ALA. The best effects were observed in rats pretreated with combined doses of MT and ALA. Melatonin and alpha lipoic acid have potential to reduce testicular toxicity associated with lopinavir/ritonavir treatment.

Induction of Growth Factor Expression is Reduced during Healing of Tympanic Membrane Perforations in Glucocorticoid-Treated Rats

2002 ◽  
Vol 111 (10) ◽  
pp. 947-953 ◽  
Author(s):  
Shin-Ichi Ishimoto ◽  
Toshio Ishibashi
Keyword(s):  
Wound Healing ◽  
Growth Factors ◽  
Growth Factor ◽  
Mrna Expression ◽  
Messenger Rna ◽  
Transforming Growth Factor ◽  
Keratinocyte Growth Factor ◽  
Treated Group ◽  
Transforming Growth Factor Α ◽  
Tympanic Membrane Perforations

The participation of growth factors in wound healing of tympanic membranes (TMs) is established. To determine the possible role of these growth factors in normal healing, we examined the regulation of keratinocyte growth factor (KGF), transforming growth factor–α (TGF-α), and basic fibroblast growth factor (bFGF) messenger RNA (mRNA) expression in wounded TMs of glucocorticoid-treated rats; these rats have severe wound healing abnormalities. Induction of KGF, TGF-α, and bFGF mRNA expression after TM injury was significantly reduced in these rats. Moreover, we found that the average number of bromodeoxyundine-positive cells in a glucocorticoid-treated group was significantly lower than that in controls. The data suggest that reduced expression of these genes might be partially responsible for the wound healing defects seen in these animals. These results provide a possible explanation for the beneficial effect of exogenous KGF, TGF-α, or bFGF in treatment of wound healing disorders of the TM.

Evaluation of blood oxidant/antioxidant changes and testicular toxicity after subacute exposure to cadmium in albino rats: Therapeutic effect of Nigella sativa seed extracts

2020 ◽  
Vol 23 ◽  
Author(s):  
Ikenna Kingsley Uchendu ◽  
Henshaw Uchechi Okoroiwu
Keyword(s):  
Oxidative Stress ◽  
Testosterone Level ◽  
Nigella Sativa ◽  
Serum Testosterone ◽  
Seed Extract ◽  
Serum Testosterone Level ◽  
Albino Rats ◽  
Testicular Toxicity ◽  
Oral Group ◽  
Testicular Injury

Aim and Objective: Cells and tissues of the body are prone to oxidative damage as a result of increased level of reactive oxygen species and nitrogen radical beyond the detoxifying ability of the endogenous antioxidant system. This study aimed to evaluate the ameliorative effect of methanolic extracts of Nigella sativa (MENS) against cadmium-induced blood oxidative stress and testicular toxicity in albino rats. Materials and Methods: Twenty five (25) male albino rats, weighing (200±20g), were randomly grouped into five groups (A-E). Group B (Negative Control) received intraperitoneal administration of cadmium chloride (CdCl2, 5mg/kg) only, group C received CdCl2 and low dose MENS (300mg/kg, oral), group D received CdCl2 and high dose MENS (600mg/kg, oral), group E (Positive control) received CdCl2 and Vitamin C (200mg/kg, oral), for 14 days. No treatment was administered to group A (Normal control). The oxidative state of the blood was assessed by measuring the blood levels or activities of MDA, CAT, GSH and SOD; while testicular injury was assessed by measuring serum testosterone level using ELISA. The testes were harvested for histopathological examination. Results: The results showed that cadmium induced a marked elevation in the level of MDA, and a decrease in SOD, CAT and GSH levels or activities (p<0.05 or p<0.01); but no significant alteration in the serum testosterone level (p>0.05); Histopathological studies on the testes showed that cadmium significantly induced testicular injury, which was however ameliorated by the seed extract of N.sativa. Conclusion: We conclude that N.sativa seed extract is potentially testiculoprotective and attenuates oxidative stress against harmful chemical toxins such as cadmium.

The Effect of Silver Nanoparticles on the Healing Process of Excisional Skin Wounds in Adult Albino Rats: Histological and Immunohistochemical Study

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
M Elashry ◽  
I A Baheieldin ◽  
A S S Yonis ◽  
N E Elnefiawy ◽  
Y R A Ahmad ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Image Analysis ◽  
Blood Vessels ◽  
Granulation Tissue ◽  
Healing Process ◽  
Treated Group ◽  
Collagen Fibers ◽  
Albino Rats ◽  
Skin Wounds ◽  
Silver Sulphadiazine

Abstract Background The ultimate goal for wound healing is a speedy recovery with minimal scarring. Different approaches have been used for achieving this goal such as antimicrobials and cell growth promoting agents. Recently, silver nanoparticles (AgNps) have become of interest in biomedical applications, because of their antibacterial, antifungal, antiviral and anti-inflammatory activity. Aim was to investigate the role of AgNps on the healing process of excisional skin wounds in adult male albino rats. Material & Methods 72 male albino rats weighing 200 g were obtained from research center, Ain Shams Faculty of Medicine and subjected to excisional skin wounds 1.5 cm in diameter on their mid-backs. Then rats were divided into 4 groups 18 rats each; control (group I) skin wounds were left to heal naturally. Other wounds were topically treated once daily with methylcellulose hydrogel (group II), silver sulphadiazine (group III), and AgNps in methylcellulose hydrogel (group IV). For each group 6 rats were sacrificed on each of the following days post-wounding; 3rd, 7th and 14th. Skin specimens from all groups were fixed in 10% neutral formalin & processed for paraffin sections which were stained with Hx & E, Mallory’s Trichrome and vascular endothelial growth factor (VEGF). Using image analysis software, number of (macrophages, newly formed blood vessels & fibroblasts) and area % of collagen fibers deposition were assessed and statistically analyzed. Results Control and methylcellulose hydrogel groups revealed almost similar results. Re-epithelialization started on day 3 post-wounding only in AgNps treated group and on day 7 in all other groups. Epithelialization was complete on day 14 only in AgNps treated group and the dermis was mostly regenerated with the appearance of skin appendages. Components of the granulation tissue varied considerably among the studied groups and across the three time points. In Hx & E stained sections the number of macrophages was highest in AgNps treated group on day 3 post-wounding then was the lowest on days 7 and 14 compared with other groups as confirmed by image analysis. Neovascularization started on day 3 in all groups but was prominent on AgNps treated group which showed high density on day 7 as proved statistically and by results of VEGF immune staining. The number of the newly formed blood vessels declined on day 14 in AgNps treated group and remained high in silver sulphadiazine group and showed maximum density in control groups. Statistical analysis proved that the number of fibroblasts in AgNps group was maximum on day 7 & decreased to minimum on day 14 compared with all other groups. In Mallory’s trichrome stained sections the area percent of collagen fibers deposition in the granulation tissue was maximum in AgNps treated group across all periods of the study compared to other studied groups. Conclusion AgNps showed advantage of rapid healing of excisional skin wounds in rats compared with traditional methods of treatment. It might be the treatment of choice particularly for high risk patients.

scholarly journals Alpha-Lipoic Acid Attenuates Renal Injury in Rats with Obstructive Nephropathy

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Orawan Wongmekiat ◽  
Dolrawee Leelarungrayub ◽  
Kamthorn Thamprasert
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Lipoic Acid ◽  
Renal Injury ◽  
Ureteral Obstruction ◽  
Structural Changes ◽  
Transforming Growth Factor ◽  
Interstitial Fibrosis ◽  
Obstructive Nephropathy ◽  
Alpha Lipoic Acid

This study was established to determine the possible protective effects of alpha-lipoic acid (ALA), a powerful antioxidant, on renal injury in obstructive nephropathy. Male Sprague-Dawley rats were assigned into sham-operated unilateral ureteral obstruction (UUO) and UUO treated with ALA groups. ALA 60 mg/kg was injected intraperitoneally 2 days before UUO induction and continued afterward for 7 days. Renal function, oxidative stress markers, nitric oxide, transforming growth factor-1 (TGF-β1), and histological changes were evaluated at the end of the experiment. Obstruction of the ureter resulted in renal dysfunction as indicated by significant increases in blood urea nitrogen and serum creatinine. Nonobstructed contralateral kidneys in all groups examined did not show any morphological or biochemical alterations. In untreated UUO group, the obstructed kidney developed marked hydronephrosis, leukocyte infiltration, and severe interstitial fibrosis. These functional and structural changes were associated with significant increases in tissue levels of malondialdehyde, nitric oxide, and TGF-β1 but decreases in reduced glutathione and total antioxidant capacity. Pretreatment with ALA significantly minimized all the changes elicited by ureteral obstruction. These findings demonstrate that ALA supplementation attenuates renal injury in rats with obstructive nephropathy and further suggest that oxidative stress inhibition is likely to be involved in the beneficial effects of this compound.

scholarly journals Melatonin and alpha lipoic acid attenuate methotrexate/ cisplatin-induced kidney toxicity in albino rats

2019 ◽  
Vol 9 (2) ◽  
pp. e17-e17
Author(s):  
Elias Adikwu ◽  
Nelson Clement Ebinyo ◽  
Bonsome Bokolo
Keyword(s):  
Anticancer Drug ◽  
Lipoic Acid ◽  
Malignant Tumors ◽  
Genetic Alterations ◽  
Albino Rats ◽  
Protective Effects ◽  
Alpha Lipoic Acid ◽  
Serum Samples ◽  
Kidney Toxicity ◽  
Beneficial Effects

Introduction: Most anticancer therapies are seldom effective by single anticancer drug due to biologic heterogeneity and multiple genetic alterations stimulating the use of anticancer drug combinations. Methotrexate/cisplatin (MTX/CPT) has shown beneficial effects in the treatment of metastatic and malignant tumors, but its use may perturb kidney function. Objectives: The present study assessed the protective effects of melatonin (MT) and alpha-lipoic acid (ALA) against kidney toxicity induced by MTX/CPT in albino rats. Materials and Methods: Forty-eight adult male albino rats were randomized into groups and pretreated with MT (10 mg/kg), ALA (10 mg/kg) and MT+ALA daily for five days before treatment with 20 mg/kg of MTX and 5 mg/kg of CPT intraperitoneally on the fifth day. After overnight fast, rats were sacrificed, serum samples were centrifuged from blood samples and assessed for renal function parameters and electrolytes. Kidneys were assessed for oxidative stress (OS) markers and pathology. Results: Significant (P<0.001) increases in serum creatinine, urea, and uric acid levels with significant (P<0.001) decreases in total protein, albumin, potassium, sodium, chloride, and bicarbonate levels were obtained in MTX/CPT-intoxicated rats when compared to control. Furthermore, kidney malondialdehyde levels were significantly (P<0.001) increased whereas catalase, superoxide dismutase, glutathione and glutathione peroxidase levels were significantly (P<0.001) decreased in MTX/CPT-intoxicated rats when compared to control. Pathologic changes marked by atrophic glomeruli were detected in the kidneys of MTX/CPT-treated rats. However, nephrotoxicity observed in MTX/CPT-treated rats was significantly reversed in MT (P<0.01), ALA (P<0.05) and MT+ALA (P<0.001) pretreated rats when compared to MTX/CPT -treated rats. Conclusion: MT and ALA supplementations attenuate nephrotoxicity caused by MTX/CPT.

scholarly journals The effects of alpha lipoic acid on apoptosis, NF‐κB and iNOS mRNA expression in experimental colitis (902.3)

2014 ◽  
Vol 28 (S1) ◽  
Author(s):  
Mete Özkurt ◽  
İlhan Zencirci ◽  
Fatih Necdet ◽  
Nilüfer Erkasap ◽  
Murat Tosun ◽  
...  
Keyword(s):  
Mrna Expression ◽  
Lipoic Acid ◽  
Experimental Colitis ◽  
Inos Mrna ◽  
Alpha Lipoic Acid
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