Antioxidant Bioactivity of Samsum Ant (Pachycondyla sennaarensis) Venom Protects against CCL4-Induced Nephrotoxicity in Mice

To assess whether SAV could influence the effects of carbon tetrachloride (CCL4) exposure, mice were treated with SAV in doses of 100, 200, 300 and 400 μg/kg body weight and the effects on oxidative status and kidney function were studied. Serum levels of creatinine, malondialdehyde (MDA), and blood urea, together with renal and hepatic levels of MDA, glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT) were quantified in order to evaluate antioxidant activity. Results showed that the group injected with CCL4exhibited significantly higher levels of oxidative stress markers, MDA, and significantly lower concentrations of GSH, SOD and catalase. SAV was found to significantly improve these oxidative markers, occasionally, in a dose-dependent manner. Furthermore, treatment with SAV was associated with the same behaviour in respect to kidney functions which had previously been impaired by CCL4. Histopathological examination demonstrated that SAV, in different groups, improved the renal tissue damage induced by CCL4and histological scores confirmed that significant improvements were obtained after treatment with SAV, particularly with the lowest dose (100 μg/kg body weight). In conclusion, SAV has the potential capability to restore oxidative stability and to improve kidney functions after CCL4acute injury.

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Evaluating the Proposed Mechanism by Which Atorvastatin Can Protect Renal Tissue against Contrast Media: An Animal study

Al Mustansiriyah Journal of Pharmaceutical Sciences ◽

10.32947/ajps.19.01.0395 ◽

2019 ◽

pp. 75-84

Keyword(s):

Contrast Media ◽

Kidney Injury ◽

Saline Group ◽

Pleiotropic Effect ◽

Renal Tissue ◽

Male Rats ◽

Dependent Manner ◽

Group 2 ◽

Dose Dependent ◽

Media Group

Contrast- induced nephropathy (CIN) is an elevation of serum creatinine of ≥ 0.5 mg/dL from baseline after two to three days of exposure to contrast substance if there is no other cause for acute kidney injury. Atorvastatin may protect normal kidney physiology from contrast- induced kidney injury by effects unrelated to hypolipidemia termed pleiotropic effect by decline of endothelin production, angiotensin system down regulation, and under expression of endothelial adhesion molecules. This study was conducted to assess the strategy by which atorvastatin can achieve protective effect for kidneys after exposure to contrast media in an animal model. A 40 male rats were distributed randomly into 4 groups; ten rats for each: group (1): given normal saline; group (2): CIN group given iopromide as contrast media; group (3): given atorvastatin (20mg/kg) and iopromide; and group (4): given atorvastatin (40mg/kg) and iopromide. Blood collected by cardiac puncture for detection of serum glutathione, malondialdehyde, matrix metalloproteinase-9, and interleukin-18. The results have shown a significant increase in inflammatory and oxidative stress markers in contrast media group, and significant reduction in these markers in atorvastatin treated groups, in a dose-dependent manner. As conclusion, atorvastatin mechanism for protection against CIN in a dose-dependent manner can mediate by anti-inflammatory and antioxidant effects.

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Changes in growth rate and thyroid- and sex-hormones blood levels in rats under sub-chronic lithium treatment

Human & Experimental Toxicology ◽

10.1191/0960327106ht620oa ◽

2006 ◽

Vol 25 (5) ◽

pp. 243-250 ◽

Cited By ~ 9

Author(s):

M S Allagui ◽

N Hfaiedh ◽

C Vincent ◽

F Guermazi ◽

J-C Murat ◽

...

Keyword(s):

Growth Rate ◽

Lithium Treatment ◽

Lithium Carbonate ◽

Serum Levels ◽

Antagonistic Effect ◽

Blood Levels ◽

Vaginal Mucosa ◽

Dependent Manner ◽

Serum Concentrations ◽

Dose Dependent

Lithium therapy, mainly used in curing some psychiatric diseases, is responsible for numerous undesirable side effects. The present study is a contribution to the understanding of the pathophysiological mechanisms underlying lithium toxicity. Male and female mature rats were divided into three batches and fed commercial pellets: one batch was the control and the second and third batches were given 2 g (Li1) and 4 g (Li2) of lithium carbonate/kg of food/day, respectively. After 7, 14, 21 and 28 days, serum levels of free tri-iodothyronine (FT3), thyroxine (FT4), testosterone and estradiol were measured. Attention was also paid to growth rate and a histological examination of testes or vaginal mucosa was carried out. In treated rats, a dose-dependent loss of appetite and a decrease in growth rate were observed, together with symptoms of polydypsia, polyuria and diarrhea. Lithium serum concentrations increased from 0.44 mM (day 7) to 1.34 mM (day 28) in Li1 rats and from 0.66 to 1.45 mM (day 14) in Li2 rats. Li2 treatment induced a high mortality after 14 days, reaching 50-60% in female and male animals. From these data, the LD50 (14 days Li2 chronic treatment) was calculated to be about 0.3 g/day per kilogram of animal, leading to Li serum concentrations of about 1.4 mM. A significant decrease of FT3 and FT4 was observed in treated rats. This effect appeared immediately for the highest dose and was more pronounced for FT3, resulting in an increase of the FT4/FT3 ratio. In males, testosterone decreased and spermatogenesis was stopped. Conversely, in females, estradiol increased in a dose-dependent manner as the animals were blocked in the diestrus phase at day 28. This finding supports a possible antagonistic effect of lithium on the estradiol receptors.

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Antidiabetic and antiulcerative potential of Garcinia lanceifolia Roxb. bark

Future Journal of Pharmaceutical Sciences ◽

10.1186/s43094-020-00101-6 ◽

2020 ◽

Vol 6 (1) ◽

Author(s):

Nilutpal Sharma Bora ◽

Partha Sarathi Bairy ◽

Abdus Salam ◽

Bibhuti Bhusan Kakoti

Keyword(s):

Body Weight ◽

Serum Levels ◽

Northeast India ◽

Scientific Data ◽

Antidiabetic Activity ◽

Histological Evaluation ◽

Albino Rats ◽

Antiulcer Activity ◽

Dose Dependent

Abstract Background Garcinia lanceifolia Roxb. has been used by many ethnic communities of Northeast India to mitigate various disorders like dyspepsia, ulcers, diabetes, etc. However, a robust scientific study on its antidiabetic and antiulcer potential is unavailable till date. The aim of this present study is to scientifically validate if the antidiabetic and antiulcer effects reported by the ethnic tribes of Assam has any scientific value or not. The effects were tested in adult Wistar albino rats using approved animal models for preclinical testing of pharmacological activities. Results The hydroalcoholic extract of the bark of Garcinia lanceifolia Roxb. was prepared and its LD50 was calculated. The LD50 was determined to be greater than 5000 mg/kg body weight. The extract at doses of 250 mg/kg body weight and 500 mg/kg body weight was found to exhibit a very potent dose-dependent antidiabetic activity. The results were backed by a battery of test including analysis of serum levels of blood glucose, lipid profiles, in vivo antioxidant enzymes, and histopathological studies. Evidence of dose-dependent antiulcer activity of the extract was backed by robust scientific data. It was found that HAEGL induced a significant dose-dependent increase in the ulcer index in both alcohol-induced and acetic acid-induced ulcer models, which was evident from the macroscopic observation of the inner lining of the gastric mucosa and the histological evaluation of the extracted stomach. Conclusion The results suggested that the bark of Garcinia lanceifolia (Roxb.) has significant antidiabetic and antiulcer potential. Further studies with respect to the development herbal dosage forms and its safety evaluation are required.

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PHYTOCHEMICAL AND BIOLOGICAL STUDIES OF ROTULA AQUATICA LOUR. ROOTS

INDIAN DRUGS ◽

10.53879/id.50.11.p0034 ◽

2013 ◽

Vol 50 (11) ◽

pp. 34-38

Author(s):

T. Shyam ◽

◽

S Ganapaty

Keyword(s):

Body Weight ◽

Spectroscopic Data ◽

Methanolic Extract ◽

Hepatoprotective Activity ◽

Dependent Manner ◽

Biological Studies ◽

Bacteria And Fungi ◽

Dose Levels ◽

Dose Dependent ◽

Chemical Evidence

Four compounds viz α-amyrin, β- amyrin, bauerenol and ellagic acid were isolated from the methanolic extract of Rotula aquatica roots. The structures of these compounds were elucidated on the basis of spectroscopic data analysis and chemical evidence. The extract was evaluated for hepatoprotective activity against carbon tetrachloride induced hepatotoxic model at a dose levels of 200,400 and 800 mg/ kg body weight and compared with that of the standard silymarin (25mg/kg body weight). It showed good hepatoprotective activity in a dose dependent manner. The extract was also screened for antimicrobial activity against various types of organisms like bacteria and fungi.

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PHARMACOLOGICAL SCREENING OF ANTI-OBESITY POTENTIAL OF ACORUS CALAMUS LINN. IN HIGH FAT CAFETERIA DIET FED OBESE RATS

Asian Journal of Pharmaceutical and Clinical Research ◽

10.22159/ajpcr.2017.v10i4.16893 ◽

2017 ◽

Vol 10 (4) ◽

pp. 384 ◽

Cited By ~ 2

Author(s):

Athesh K ◽

Joshi G

Keyword(s):

Body Weight ◽

High Fat Diet ◽

Serum Glucose ◽

In Vivo Studies ◽

Acorus Calamus ◽

Dependent Manner ◽

Fat Pad ◽

High Fat ◽

Dose Levels ◽

Dose Dependent

Objective: To study the anti-obesity potential of aqueous rhizome extract of Acoruscalamus Linn. (AREAC)in high fat diet fed obese rats.Methods: Adult strain male Wistar rats used in this study were fed with High Fat Diet (HFD) for 60 days. For the treatment groups,AREAC was administered in a dose levels of100, 200 and 300 mg/kgbw, orally once a day along with HFD. Rats fed with normal pellet chow were served as normal control. The effect of AREAC on physical parameterssuch as body weight, organ weight, fat pad weights and various biochemical parameterslike serum glucose, insulin, leptin,lipid profile, liver markers, kidney markers and oxidative stress markers were analysed.In-vitro pancreatic lipase inhibition assay of AREAC was also studied.Results: Data of in-vivo studies revealedsignificant (p<0.05) reduction in percentage body weight gain, organ weights, fat pad weights and levels of serum glucose, insulin and leptin after treatment with AREAC in a dose dependent manner. Also, administration of AREAC significantly inhibited the increases in the concentrations of triglycerides, total cholesterol, LDL-cholesterol, VLDL-cholesterol, free-fatty acid and phospholipids in a dose dependent manner whereas, the level of HDL-cholesterol was found to be elevated on treatment. Moreover, on treatment with test drug,the elevated levels of serum liver and kidney markerssuch as AST, ALT, ALP, urea, creatinine were also brought back to near normalcy. Antioxidant status was found to be enhanced in liver tissues after treatment.In-vitro studies showed significant inhibition in the activity of pancreatic lipaseby AREAC.Conclusion: The data of the results obtained clearly depicted that AREAC was found to have pronounced anti-obesity activity particularly at the dose levels of 300 mg/kg bw.Key Words: Obesity, High Fat Diet, Leptin, AcoruscalamusLinn., Orlistat.

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Hepatoprotective effects of Sapium sebiferum in paracetamol-induced liver injury

Bangladesh Journal of Pharmacology ◽

10.3329/bjp.v10i2.22576 ◽

2015 ◽

Vol 10 (2) ◽

pp. 393 ◽

Cited By ~ 3

Author(s):

Liaqat Hussain ◽

Muhammad Sajid Hamid Akash ◽

Madeha Tahir ◽

Kanwal Rehman

Keyword(s):

Liver Injury ◽

Serum Levels ◽

Therapeutic Effects ◽

Sapium Sebiferum ◽

Dependent Manner ◽

Protective Effects ◽

Drug Induced ◽

Standard Drug ◽

Hepatoprotective Effects ◽

Dose Dependent

Sapium sebiferum leaves were used to determine its hepatoprotective effects against paracetamol-induced hepatotoxicity in mice. A dose dependent study was conducted using two different doses (200 mg/kg and 400 mg/kg) of the extract of S. sebiferum against toxic effects of paracetamol (500 mg/kg) in experimental animal model. Silymarin (50 mg/kg) was used as standard drug to compare therapeutic effects of S. sebiferum with control and paracetamol-treated groups. Paracetamol significantly increased the serum levels of liver enzyme markers like alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, total bilirubin, and direct bilirubin. The extract showed protective effects by normalizing the liver enzymes markers in a dose dependent manner. Histopathological results confirmed the hepatoprotective effects of leaves of S. sebiferum. We conclude that leaves of S. sebiferum have strong hepatoprotective effects against paracetamol-induced liver injury and can be used in liver injuries caused by drug-induced toxicity.

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Follicle-stimulating hormone stimulates inhibin in the serum of male monkeys (Macaca mulatta)

Acta Endocrinologica ◽

10.1530/acta.0.1220096 ◽

1990 ◽

Vol 122 (1) ◽

pp. 96-100 ◽

Cited By ~ 7

Author(s):

Ulrich Fingscheidt ◽

Gerhard F. Weinbauer ◽

Shafiq A. Khan ◽

Eberhard Nieschlag

Keyword(s):

Macaca Mulatta ◽

Half Life ◽

Rhesus Monkeys ◽

Follicle Stimulating Hormone ◽

Serum Levels ◽

Lag Time ◽

Dependent Manner ◽

Control Serum ◽

Dose Dependent ◽

Stimulating Hormone

Abstract. Three adult rhesus monkeys were injected intramuscularly with human FSH at doses of 2, 10 or 25 IU/kg in a cross-over design with 3-week intervals between injections. On each occasion a fourth animal received saline only as control. Serum levels of exogenous FSH were monitored by a fluoroimmunoassay specific for human FSH. Serum inhibin was measured by a heterologous radioimmunoassay. Each FSH injection was followed by a rise in serum inhibin in a dose-dependent manner. The half-life of human FSH in rhesus monkeys ranged from 25.1 to 32.9 h with no significant differences between doses. The rise of inhibin occurred with a lag time of 53.3 to 61.9 h after injection of FSH, independent of the dose administered. These findings support the concept that inhibin secretion in male primates is stimulated by FSH.

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HEPATOPROTECTIVE EVALUATION OF EPALTES DIVARICATA (L.) CASS. WHOLE PLANT EXTRACTS AGAINST PARACETAMOL-INDUCED HEPATOTOXICITY IN RATS

International Journal of Pharmacy and Pharmaceutical Sciences ◽

10.22159/ijpps.2016v8i12.14951 ◽

2016 ◽

Vol 8 (12) ◽

pp. 231 ◽

Cited By ~ 1

Author(s):

K. Amala ◽

R. Ilavarasan ◽

R. Arunadevi ◽

S. Amerjothy

Keyword(s):

Aqueous Extract ◽

Histopathological Examination ◽

Hepatoprotective Activity ◽

Hepatoprotective Effect ◽

Dependent Manner ◽

Traditional Use ◽

Whole Plant ◽

Medicinal Use ◽

Histopathological Studies ◽

Dose Dependent

Objective: The plant of Epaltes divaricata (L.) Cass. Traditionally used for jaundice. The present work aimed to investigate the hepatoprotective activity of alcohol and aqueous extract of the whole plant against paracetamol-induced hepatotoxicity in rats to substantiate its traditional use.Methods: The alcohol and aqueous (200 and 400 mg/kg) extract of Epaltes divaricata prepared by cold maceration were administered orally to the animals with hepatotoxicity induced by paracetamol (1000 mg/kg). Silymarine (40 mg/k) was given as reference standard. Hepatoprotective activity was assessed by estimating marker enzymes and by histopathological studies.Results: Both alcohol and aqueous (200 and 400 mg/kg) extract treatment significantly restored the paracetamol-induced elevations in levels of serum enzymes aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphate (ALP) and total bilirubin in a dose-dependent manner. Histopathological examination revealed that the treatment attenuated the paracetamol-induced damage to the liver. The hepatoprotective effect of both extracts was comparable to that of the standard hepatoprotective agent, silymarin.Conclusion: The alcohol and aqueous extract of E. divaricata exhibited hepatoprotective effect against paracetamol-induced liver damage in rats. This study also validated their traditional medicinal use in jaundice.

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Thymoquinone Upregulates Catalase Gene Expression and Preserves the Structure of the Renal Cortex of Propylthiouracil-Induced Hypothyroid Rats

Oxidative Medicine and Cellular Longevity ◽

10.1155/2020/3295831 ◽

2020 ◽

Vol 2020 ◽

pp. 1-15

Author(s):

Nasra Ayuob ◽

Maha Jameal Balgoon ◽

Ahmed A. El-Mansy ◽

Wafaa A. Mubarak ◽

Alaa El-Din L. Firgany

Keyword(s):

Gene Expression ◽

Body Weight ◽

Protective Effect ◽

Renal Cortex ◽

Nigella Sativa ◽

Serum Levels ◽

Renal Tissue ◽

Renal Diseases ◽

Catalase Gene ◽

Male Wistar Rats

Background. The association between hypothyroidism and renal diseases has been described in many studies. Nigella Sativa was among the recently reported natural product that has the potential to prevent renal tissue damage and fibrosis. The aim of this study was to evaluate the possible protective effect of thymoquinone on the structure of the renal cortex of hypothyroid rats and explore the mechanism behind it. Methods. An experimental model of hypothyroidism was induced in adult male Wistar rats by administration of propylthiouracil (6 mg/kg/body weight). One hypothyroid group was treated with thymoquinone at the dose of 50 mg/kg/body weight and compared to the untreated group. Thyroid function and oxidant/antioxidant status were assessed in the serum. Catalase gene expression was assessed using the real-time polymerase chain reaction. The kidney was assessed both histologically and immunohistochemically. Results. Administration of propylthiouracil resulted in a significant decrease in the serum levels of nitric oxide, reduced glutathione, and superoxide dismutase activity while the level of malondialdehyde significantly (p<0.001) increased. Administration of thymoquinone alleviated this effect on the thyroid hormones and significantly increased the serum levels of antioxidants. Thymoquinone significantly (p<0.001) upregulated catalase transcription by about 24-fold and could block the hypothyroidism-induced glomerular and tubular injury. Conclusion. Thymoquinone may have a potential protective effect against hypothyroidism-induced renal injury acting through the attenuation of the oxidative stress and upregulation of renal catalase gene expression.

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Natural Antioxidant Betanin Protects Rats from Paraquat-Induced Acute Lung Injury Interstitial Pneumonia

BioMed Research International ◽

10.1155/2015/608174 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 15

Author(s):

Junyan Han ◽

Deshun Ma ◽

Miao Zhang ◽

Xuelian Yang ◽

Dehong Tan

Keyword(s):

Body Weight ◽

Acute Lung Injury ◽

Lung Injury ◽

Weight Ratio ◽

Lavage Fluid ◽

Dependent Manner ◽

Sod Activity ◽

Protein Levels ◽

Injury Characteristic ◽

Dose Dependent

The effect of betanin on a rat paraquat-induced acute lung injury (ALI) model was investigated. Paraquat was injected intraperitoneally at a single dose of 20 mg/kg body weight, and betanin (25 and 100 mg/kg/d) was orally administered 3 days before and 2 days after paraquat administration. Rats were sacrificed 24 hours after the last betanin dosage, and lung tissue and bronchoalveolar lavage fluid (BALF) were collected. In rats treated only with paraquat, extensive lung injury characteristic of ALI was observed, including histological changes, elevation of lung : body weight ratio, increased lung permeability, increased lung neutrophilia infiltration, increased malondialdehyde (MDA) and myeloperoxidase (MPO) activity, reduced superoxide dismutase (SOD) activity, reduced claudin-4 and zonula occluden-1 protein levels, increased BALF interleukin (IL-1) and tumor necrosis factor (TNF)-αlevels, reduced BALF IL-10 levels, and increased lung nuclear factor kappa (NF-κB) activity. In rats treated with betanin, paraquat-induced ALI was attenuated in a dose-dependent manner. In conclusion, our results indicate that betanin attenuates paraquat-induced ALI possibly via antioxidant and anti-inflammatory mechanisms. Thus, the potential for using betanin as an auxilliary therapy for ALI should be explored further.

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