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

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.

scholarly journals Protective Effect of Terminalia arjuna Against DBTC Induced Pancreatic Cancer in Male Wistar Rats

2021 ◽  
pp. 248-256
Author(s):  
Kadiyala Harshitha ◽  
Uma Sankar Gorla
Keyword(s):  
Pancreatic Cancer ◽  
Body Weight ◽  
Protective Effect ◽  
Wistar Rats ◽  
Negative Control ◽  
Terminalia Arjuna ◽  
Hydroalcoholic Extract ◽  
Group I ◽  
Male Wistar Rats ◽  
Per Oral

Aims: To study the protective effect of hydroalcoholic bark extract of Terminalia arjuna against DBTC induced pancreatic cancer in male wistar rats. Study design: Healthy male Wistar Albino rats weighing 150-200 g were segregated into four groups (n=6). Group I was considered as normal control, received normal saline (0.9%w/v, 1 ml/kg body weight, orally). Group II rats were treated with DBTC (6 mg/kg body weight, i.p.) which served as negative control. Group III and IV received Terminalia arjuna Linn bark hydroalcoholic extract at doses of 250 mg/kg body weight, per oral and 500 mg/kg body weight, per oral respectively. Place and Duration of Study: University College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, India, between May 2020 and July 2020. Methodology: The experimental animals were segregated into four groups of six rats each. According to acute toxicity data, 250 mg/kg as low dose and 500 mg/kg as high dose of the test compound have been chosen for administration. All the drugs were given for 28 consecutive days to all the respective groups with standard pellet diet and water ad libitum. The assessment of serum parameters such as α-Amylase, Lipase and blood glucose levels were carried out on 1st day, 14th day and 28th day to the respective groups. Results: Pretreated groups of Terminalia arjuna Linn bark hydroalcoholic extract (250 mg/kg and 500 mg/kg body weight, orally) showed significant (‘#’p<0.001) decrease in the levels of α-Amylase, Lipase and glucose in the blood when compared to DBTC (6 mg/kg body weight, i.p.) induced group which served as negative control. Conclusion: This study suggests that Terminalia arjuna may have a protective role against DBTC induced pancreatic cancer in male wistar rats and further investigation may be required to confirm its therapeutic potentials clinically.

Role of hypothalamic neuropeptide Y gene expression in body weight regulation

1994 ◽  
Vol 266 (5) ◽  
pp. R1687-R1691 ◽  
Author(s):  
L. Davies ◽  
J. L. Marks
Keyword(s):  
Gene Expression ◽  
Body Weight ◽  
Neuropeptide Y ◽  
Food Deprivation ◽  
Serum Insulin ◽  
Serum Glucose ◽  
Weight Regulation ◽  
Body Weight Regulation ◽  
Insulin Levels ◽  
Male Wistar Rats

Hypothalamic neuropeptide Y (NPY) may be involved in the hyperphagia that follows food deprivation associated with significant weight loss. However, it is unclear whether NPY is involved in body weight regulation under more physiological circumstances. Consequently, we measured body weight, food intake, arcuate nucleus (ARC) NPY mRNA, serum glucose, and insulin in male Wistar rats after 48 h of food deprivation and various refeeding protocols. Food deprivation produced a twofold increase in NPY mRNA, whereas 3 days of ad libitum refeeding returned body weight and NPY mRNA to control. If hyperphagia was prevented for 5 days during refeeding, then neither body weight nor NPY mRNA normalized. There were strong negative correlations between ARC NPY mRNA and both loss of body weight and serum insulin levels. These data suggest that hypothalamic NPY gene expression plays a role in control of body weight under physiological conditions. The data further suggest that NPY mRNA may be decreased by peripheral insulin levels.

scholarly journals Total gastrectomy with substitution of stomach by jejunal pouch with and without duodenal passage: study in rats

2005 ◽  
Vol 20 (suppl 1) ◽  
pp. 107-112 ◽  
Author(s):  
Tertuliano Aires Neto ◽  
Jeancarlo Fernandes Cavalcante ◽  
José Brandão-Neto ◽  
Irami Araújo Filho ◽  
Maria das Graças Almeida ◽  
...  
Keyword(s):  
Body Weight ◽  
Total Gastrectomy ◽  
Wistar Rats ◽  
Serum Gastrin ◽  
Serum Levels ◽  
Sham Operation ◽  
Jejunal Pouch ◽  
Total Proteins ◽  
Male Wistar Rats ◽  
Iron And Calcium

PURPOSE: A comparison was done between the F. Paulino jejunal pouch (FP) and a jejunal pouch (JP) as esophagus-duodenum interpositional graft, for replacing the stomach after total gastrectomy. It was investigated the effect of the two procedures on esophagus histology, nutritional state and serum gastrin in rats. METHODS: Male Wistar rats weighing 282±17g were randomly submitted to sham operation (S), FP and JP after total gastrectomy. After eight weeks the rats were killed with overdose of anesthetic and tissue was taken from the distal esophagus for histology. Serum levels of total proteins, albumin, iron, transferring, folate, cobalamine, calcium, as well as serum gastrin were determined. Survival was considered. RESULTS: Fourty six rats were operated and thirty survived for eight weeks. Five (33.3%) died after FP and 11 (52.3%) after JP (p<0.05). Postoperative esophagitis occurred in 6 JP rats. At 8th week, no difference was observed on body weight when compared FP and JP rats (p>0.05). The JP rats had a significant decrease in serum albumin, glucose, transferrin, iron, folate and calcium, compared to sham (p<0.05). Serum gastrin, iron and calcium were significantly higher in JP rats than in FP rats (p<0.05). In FP rats, transferrin and cobalamine showed significant decrease comparing the preoperative with 8th week levels (p<0.05). CONCLUSION: F. Paulino pouch in rats had lower mortality than JP, and esophagitis was not detected in it. JP rats had serum gastrin, iron and calcium unaffected, possibly because of preservation of duodenal passage.

scholarly journals Ameliorative Effects of Gallic Acid on Cisplatin-Induced Nephrotoxicity in Rat Variations of Biochemistry, Histopathology, and Gene Expression

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Zahra Eslamifar ◽  
Abbas Moridnia ◽  
Susan Sabbagh ◽  
Reza Ghaffaripour ◽  
Leila Jafaripour ◽  
...  
Keyword(s):  
Gene Expression ◽  
Uric Acid ◽  
Single Dose ◽  
Gallic Acid ◽  
Biochemical Parameters ◽  
Standard Condition ◽  
Renal Tissue ◽  
Control Group ◽  
Male Wistar Rats ◽  
Histopathological Studies

Background. Cisplatin is a powerful chemotherapeutic drug mainly used in the treatment of solid tumors. Aggregation of the drug in renal proximal tubule cells causes nephrotoxicity and renal failure. Investigations showed nephrotoxicity as Cisplatin’s dose-limiting side effect. One of the Cisplatin toxicity mechanisms is generation of reactive oxygen species, which leads to oxidative stress and renal damage. The purpose of this study was evaluation of the modulating effects of Gallic acid on Cisplatin-induced variations including Caspase-3 and Clusterin expression and histopathological and biochemical parameters in adult male Wistar rats. Method. Rats were kept under standard condition of temperature, light, and humidity. The animals were divided into 4 groups: GpI: control group (received distilled water for 10 days); GpII: Gallic acid (alone) (50 mg/kg bw, once a day for 10 days); GpIII: Cisplatin (alone), single dose (6 mg/kg bw, I.P. on 5th day of study); GpIV: Gallic acid (50 mg/kg bw, once a day for 10 days) and also injected with single dose of Cisplatin (6 mg/kg bw, I.P., on 5th day of study). After 10 days, all rats were anaesthetized and plasma collected to estimate urea, creatinine, and uric acid. The right kidneys were removed for the study of gene expression and biochemical parameters. The left kidneys were used for histopathological studies. Results. The Cisplatin-induced nephrotoxicity was evident from the elevated levels of creatinine, urea, uric acid, and renal tissue MDA and also decreased levels of SOD, CAT, GPX, and GSH in renal tissue. Administration of Gallic acid significantly modulated nephrotoxicity markers, gene expression variations, and histopathological damage. Conclusion. Outcomes of the present investigation suggest that Gallic acid provides protection against CP-induced nephrotoxicity, but for application in people, further studies are needed.

Nigella sativa's protective effect in acetaminophen induced liver toxicity in mice

2020 ◽  
pp. 11-18
Keyword(s):  
Protective Effect ◽  
Liver Toxicity ◽  
Nigella Sativa ◽  
Serum Levels ◽  
Oral Route ◽  
Protective Effects ◽  
Black Cumin ◽  
The Usa ◽  
Black Cumin Seed ◽  
Significant Protective Effect

Acetaminophen has contributed to acute liver failure disease in more than half of the USA and Britain but as an analgesic and antipyretic it is very effective. For many decades in Europe, Middle East and Africa, Nigella sativa has been used for various medical purposes, it is part of the botanical family Ranunculaceae of Gently sloping plants, and is called black cumin seed., Nigella sativa conjugated sterols could be used as precursors to many hydrosoluble steroids for hemisynthesis. The aim of the Study is to examine the promising hepatoprotective effects of Nigella sativa against Acetaminopheninduce hepatotoxicity in mice in this experiment Forty adult male albino mice, incorporated in the experiment and Acetaminophenwas used to induce hepatotoxicity in a dose of 1 gm /kg by the oral route. A number of biochemical and histopathological tests have been used to evaluate liver damage and Nigella sativa protective effects. The result showed a significant protective effect of Nigella sativa against acetaminophenhepatotoxic effect as Nigella sativa in this study tended to normalize the serum levels of liver enzymes, and the protective effects observed clearly by the histopathological evaluation confirming that it effectively protected mouse livers against severe damage caused by acetaminophen. Conclusion in our study it shows that Nigella sativa have a very significant protective effects against acetaminophen induced liver toxicity which is recommended to be fully investigation on human especially to people on risk of acetaminophen liver toxicity

scholarly journals Effects of endotoxin lipopolysaccharide administration on the somatotropic axis

1998 ◽  
Vol 159 (2) ◽  
pp. 239-246 ◽  
Author(s):  
L Soto ◽  
AI Martin ◽  
S Millan ◽  
E Vara ◽  
A Lopez-Calderon
Keyword(s):  
Body Weight ◽  
Body Weight Loss ◽  
Serum Levels ◽  
Dependent Manner ◽  
Igf Binding Proteins ◽  
Somatotropic Axis ◽  
Gh Secretion ◽  
Igf I ◽  
Male Wistar Rats ◽  
Igf Binding

The aim of this work was to study the effect of chronic activation of the immune system on the somatotropic axis. Accordingly, the changes in growth hormone (GH) secretion, circulating insulin-like growth factor-I (IGF-I) and IGF binding proteins (IGFBPs) in response to endotoxin lipopolysaccharide (LPS) administration were examined in adult male Wistar rats. Acute LPS injection (2.5, 25 or 250 microg/kg) increased serum corticosterone in a dose-dependent manner and decreased serum levels of insulin and IGF-I, serum GH concentration declined linearly as the LPS dose increased. Western ligand blot showed an increase in the 33 kDa band (corresponding to IGFBP-1 and IGFBP-2) in the rats that received the highest dose of LPS (250 microg/kg). Chronic LPS administration (250 microg/kg daily for 8 days) significantly decreased body weight, serum levels of IGF-I and pituitary GH content, whereas it increased circulating IGFBP-3 (47 kDa band), IGFBP-1 and IGFBP-2 (33 kDa band) and the 24 kDa band (which possibly corresponds to IGFBP-4). Serum concentration of corticosterone and hypothalamic somatostatin content were also increased by chronic LPS treatment. These data suggest that the decrease in GH and IGF-I secretion and the increase in circulating IGFBPs are important mechanisms in body weight loss during chronic inflammation.

Protective effect of chrysin on carbon tetrachloride (CCl4)—induced tissue injury in male Wistar rats

2011 ◽  
Vol 27 (10) ◽  
pp. 923-933 ◽  
Author(s):  
Kalaiselvi Velayutham Anand ◽  
Ramalingam Anandhi ◽  
Murugesan Pakkiyaraj ◽  
Pitchairaj Geraldine
Keyword(s):  
Carbon Tetrachloride ◽  
Vitamin C ◽  
Protective Effect ◽  
Wistar Rats ◽  
Tissue Injury ◽  
Protective Action ◽  
Intraperitoneal Administration ◽  
Serum Levels ◽  
Male Wistar Rats ◽  
The Mean

Chrysin, a natural flavonoid has been reported to possess potent anti-inflammatory, anti-cancer and antioxidation properties. In the present study, we aimed to evaluate the putative protective effect of chrysin, an isoflavone, on carbon tetrachloride (CCl4)-induced toxicity in male Wistar rats. Intraperitoneal administration of CCl4 (2 ml/kg) to rats for 4 days resulted in significantly elevated ( p < 0.05) serum levels of glutamic oxaloacetic transaminase (SGOT), glutamic pyruvate transaminase (SGPT), alkaline phosphatase (ALP) and lactate dehydrogenase (LDH), when compared to normal rats. In addition, the tissues (liver, kidney and brain) and haemolysate samples showed considerable increase in levels ( p < 0.05) of malondialdehyde (MDA) and lowered levels ( p < 0.05) of reduced glutathione (GSH), vitamin C and E when compared to values in normal rats. Quantitative analysis of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (Gpx) exhibited lower activities of these antioxidant enzymes in the tissues and haemolysate of CCl4-administered rats. The protective action of chrysin on CCl4-induced rat was demonstrated with SGPT, SGOT, ALP and LDH resuming to near normal levels, while the mean levels of GSH and of vitamin C and E were elevated, the mean activities of CAT, SOD and Gpx were enhanced and the mean level of MDA was lowered in the tissue and haemolysate samples when compared to the CCl4-exposed untreated rats. The expression of the iNOS gene appeared to be up-regulated in the liver and kidney samples of CCl4-exposed untreated rats, whereas in CCl4-exposed chrysin-treated rats, the mRNA transcript levels of iNOS approximated normal levels. These results strongly suggest that chrysin is able to prevent the oxidative damage induced by CCl4 in the liver, brain, kidney and haemolysate of male Wistar rats.

scholarly journals Protective Effect of Methylxanthine Fractions Isolated from Bancha Tea Leaves against Doxorubicin-Induced Cardio- and Nephrotoxicities in Rats

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Maya P. Radeva-Ilieva ◽  
Kaloyan D. Georgiev ◽  
Nadezhda R. Hvarchanova ◽  
Stanila S. Stoeva ◽  
Iliya J. Slavov ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Tissue Damage ◽  
Histological Analysis ◽  
Concomitant Administration ◽  
Renal Tissue ◽  
Creatinine Kinase ◽  
Male Wistar Rats

Doxorubicin is an anthracycline antibiotic that is used for the treatment of various types of cancer. However, its clinical usage is limited due to its potential life-threatening adverse effects, such as cardio- and nephrotoxicities. Nonetheless, simultaneous administration of doxorubicin and antioxidants, such as those found in green tea leaves, could reduce cardiac and renal tissue damage caused by oxidative stress. The methylxanthine fraction isolated from Bancha tea leaves were tested in vitro for its antioxidant activity and in vivo for its organoprotective properties against doxorubicin-induced cardio- and nephrotoxicities in a rat model. The in vivo study was conducted on male Wistar rats divided into 6 groups. Methylxanthines were administered at high (5 mg/kg body weight) and low (1 mg/kg body weight) doses, while doxorubicin was administered at a cumulative dose of 20 mg/kg body weight. Serum creatinine, uric acid, and urea concentrations, as well as serum enzyme levels (creatinine kinase (CK), creatinine kinase MB fraction (CK-MB), aspartate aminotransferase (AST), and lactate dehydrogenase (LDH)) and electrolytes (Na+, K+, and Cl-), were analysed. In addition, histological analysis was performed to assess cardiac and renal tissue damage. The concomitant administration of Bancha methylxanthines and doxorubicin showed a dose-dependent reduction in the serum biochemical parameters, indicating a decrease in the cardiac and renal tissue damage caused by the antibiotic. Histological analysis showed that pretreatment with methylxanthines at the dose of 5 mg/kg resulted in an almost normal myocardial structure and a significant decrease in the morphological kidney changes caused by doxorubicin exposure compared with the group that received doxorubicin alone. The putative mechanism is most likely related to a reduction in the oxidative stress caused by doxorubicin.

scholarly journals Genotoxicity and pharmacokinetic characterization of Cereus jamacaru ethanolic extract in rats

2019 ◽  
Vol 39 (1) ◽  
Author(s):  
Iris Ucella de Medeiros ◽  
Rhoza Araújo de Medeiros ◽  
Raul Henandes Bortolin ◽  
Fernando Márlisson de Queiroz ◽  
Vivian Nogueira Silbiger ◽  
...  
Keyword(s):  
Gene Expression ◽  
Body Weight ◽  
Body Weight Gain ◽  
Ethanolic Extract ◽  
Phytochemical Analysis ◽  
Food Ingestion ◽  
Enhanced Expression ◽  
Male Wistar Rats ◽  
Gene Expression Studies

Abstract The effect of Cereus jamacaru ethanolic extract in rats was analyzed using genotoxicity assays and liver ABCB1 and CYP2D4 gene expression. The lyophilized extract of C. jamacaru cladodes was analyzed with LC–MS/MS. Male Wistar rats (n=36) were equally distributed into six groups that did (+) or did not (−) receive cyclophosphamide treatments: Control (−); Control (+); EXP 1 (−), and EXP 1 (+), both treated with 210 mg/kg of ethanolic extract; and EXP 2 (−) and EXP 2 (+), both treated with 420 mg/kg of ethanolic extract. After 30 d of treatment, body weight and food and water intake were monitored. Right femur of the rats and spinal canal fluid were harvested and used for genotoxicity assays, and the liver samples were used for gene expression studies. The phytochemical analysis identified novel compounds. Animals treated with C. jamacaru showed lower body weight and food ingestion compared to controls (P<0.05). The genotoxicity assay showed an absence of ethanolic extract cytotoxicity. CYP2D4 expression was higher in EXP 2 groups compared with EXP 1 (−) group (P<0.05). ABCB1A expression was higher in negative groups compared with the positive groups. These results indicated a new phytochemical characterization of C. jamacaru and its effect on food ingestion and body weight gain. Moreover, the genotoxicity assay suggested that C. jamacaru ethanolic extract treatment presents significant intrinsic genotoxic potential and the enhanced expression of ABCB1 and CYP2D4 on C. jamacaru extract treatment suggests a role of the efflux transporter and microsomal enzyme, respectively, in C. jamacaru pharmacokinetics.

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

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Hossam Ebaid ◽  
Jameel Al-Tamimi ◽  
Iftekhar Hassan ◽  
Ibrahim Alhazza ◽  
Mohamed Al-Khalifa
Keyword(s):  
Body Weight ◽  
Histopathological Examination ◽  
Serum Levels ◽  
Renal Tissue ◽  
Acute Injury ◽  
Dependent Manner ◽  
Stress Markers ◽  
Oxidative Markers ◽  
Kidney Functions ◽  
Dose Dependent

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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