The Possible Hepatoprotecive Effects of ''Krill Oil and Silymarin against Carbon Tetrachloride (CCl4)-Induced Rats Model of Liver Fibrosis: In Vivo Study''

2021 ◽  
pp. 5953-5958
Author(s):  
Kassim Hassoon Ali ◽  
Faruk H. Al-Jawad ◽  
Haitham Mahmood Kadhim
Keyword(s):  
Liver Fibrosis ◽  
Liver Steatosis ◽  
Total Serum ◽  
Albino Rats ◽  
Krill Oil ◽  
Liver Sinusoidal Endothelial Cells ◽  
Inherited Disorders ◽  
Tissue Samples ◽  
Weight Percentage

Liver fibrosis is considered now as one of the most spread disease worldwide. It is attributed to different underlying causative agents such as viral infections, ethanol-induced liver steatosis, and non-ethanol-induced hepatic steatosis, autoimmune and inherited disorders. Hepatic fibrosis was known to behave as tissue repair mechanism in which the initiation occurred through complicated series of interrelated and regulated signaling. These signals involved interactions between different types of cells. Among these cells are hepatocytes, non-parenchymal cells such as hepatic stellate cells (HSCs), liver sinusoidal endothelial cells, Kupffer cells, biliary epithelial cells, liver associated lymphocytes, and the non-resident infiltrating immune cells. current work was aimed to investigate the possible potential hepatopretective effects of krill oil alone and in combination with silymarin against Carbone tetrachloride-induced liver fibrosis/injury in white albino rats. Moreover, fifty white albino rats of both genders were utilized in this study. During such study liver fibrosis/damage was induced by intraperitoneal (I.P) injection of Carbone tetrachloride (CCl4) 50% in olive oil 1ml/kg twice weekly for 6 consecutive weeks in the induction group. Krill oil alone and in combination with silymarin was administered orally concurrently with I.P CCl4 for 6 consecutive weeks in the treatment groups. At the end of treatment period all animals were killed ,serum and tissue samples were collected for subsequent analyses. Serum levels of aminotransferases (ALT,AST), albumin , total serum bilirubin (T.S.B), and total anti-oxidant capacity were measured spectrophotometrically. In addition tissue level (content) of liver hudroxyproline content (Hyp) was determined by ELISA and relative liver weight percentage (R.L.W%) was also estimated.Results were significantly revealed that krill oil potentiate the hepatoprotective effects of silymarin against Carbone tetrachloride-induced liver fibrosis/injury.

Hexagonal boron nitride nanoparticles trigger oxidative stress by modulating thiol/disulfide homeostasis

2021 ◽  
pp. 096032712110028
Author(s):  
F Kar ◽  
İ Söğüt ◽  
C Hacıoğlu ◽  
Y Göncü ◽  
H Şenturk ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Chemical Properties ◽  
Heart Tissue ◽  
Albino Rats ◽  
Dependent Manner ◽  
Tissue Samples ◽  
Boron Nitride Nanoparticles

Background: Hexagonal boron nitride nanoparticles (hBN NPs) are encouraging nanomaterials with unique chemical properties in medicine and biomedical fields. Until now, the optimal hBN NP’s dosage and biochemical mechanism that can be used for in vivo systems has not been fully revealed. The main aim of this article is to reveal characteristics, serum and tissue interactions and any acute cytotoxic effect of different dose of hBN NPs for the first time. Methods: hBN NPs at concentrations varying between 50–3200 µg/kg was administered by intravenous injection to Wistar albino rats (n = 80) divided into seven dosage and control groups. Blood and tissue samples were taken after 24 hours. Results: Our findings suggested that higher doses hBN NPs caused oxidative stress on the serum of rats dose-dependently. However, hBN NPs did not affect thiol/disulfide homeostasis on kidney, liver, spleen, pancreas and heart tissue of rats. Furthermore, hBN NPs increased serum disulfide formation by disrupting the thiol/disulfide balance in rats. Also, LOOH and MPO levels increased at high doses, while CAT levels decreased statistically. Conclusion: The results revealed that hBN NPs induce oxidative stress in a dose-dependent manner by modulating thiol/disulfide homeostasis in rats at higher concentrations

scholarly journals TRPM8 Deficiency Attenuates Liver Fibrosis Through S100A9-HNF4α Signaling

2022 ◽  
Author(s):  
Qiang Liu ◽  
Xiaohua Lei ◽  
Zhenyu Cao ◽  
Ju Zhang ◽  
Likun Yan ◽  
...  
Keyword(s):  
Liver Fibrosis ◽  
Transient Receptor Potential ◽  
Inflammatory Diseases ◽  
Receptor Potential ◽  
Potential Effect ◽  
Protective Effects ◽  
Tissue Samples ◽  
Duct Ligation

Abstract Background Liver fibrosis represent a major global health care burden. Data emerging from recent advances have suggested TRPM8, a member of the transient receptor potential (TRP) family of ion channels, plays an essential role in various chronic inflammatory diseases. However, its role in liver fibrosis remains unknown. Herein, we assessed the potential effect of TRPM8 in liver fibrosis. Methods The effect of TRPM8 was evaluated using specimens obtained from classic murine models of liver fibrosis, namely wild-type (WT) and TRPM8−/− (KO) fibrotic mice after carbon tetrachloride (CCl4) or bile duct ligation (BDL) treatment. The role of TRPM8 was systematically evaluated using specimens obtained from the aforementioned animal models after various in vivo and in vitro experiments. Results Clinicopathological analysis has shown TRPM8 expression was upregulated in tissue samples from cirrhosis patients and fibrotic mice. TRPM8 deficiency not only attenuated inflammation and fibrosis progression in mice, but also helped to alleviate symptoms of cholangiopathies. Moreover, reduction in S100A9 and increase in HNF4α expressions were observed in liver of CCl4 and BDL treated TRPM8 KO mice. Strong regulatory linkage between S100A9 and HNF4α was also noticed in L02 cells underwent siRNA-mediated S100A9 knockdown and S100A9 overexpressing plasmid transfection. Lastly, alleviative effect of a selective TRPM8 antagonist was confirmed in vivo. Conclusion These findings suggest TRPM8 deficiency may exert protective effects against inflammation, cholangiopathies and fibrosis through S100A9-HNF4α signaling mechanistically. M8-B might be a promising therapeutic candidate for liver fibrosis.

scholarly journals In Vivo Comet Assay of Food Additives’ Combinations and their Effects on Biochemical Parameters in Albino Rats

2020 ◽  
Vol 11 (2) ◽  
pp. 9170-9183
Keyword(s):  
Comet Assay ◽  
Food Additives ◽  
Food Additive ◽  
Genotoxic Effect ◽  
Total Serum Protein ◽  
Total Serum ◽  
Control Group ◽  
Albino Rats ◽  
The Brain

Although the safety of food additives had been assessed individually, these permitted additives may be unsafe if used together; this study was piloted to assess the safety of various food additive mixtures. Fifty male Albino rats - Wistar strain (4 weeks old) were distributed into 10 groups, the first group orally administered distilled water, the other nine groups orally administered different mixtures of food additives at NOAEL dosage for each food additive for 30 days. Haemoglobin, malondialdehyde, kidney functions, activities of AST, ALT, and ALP. Levels of bilirubin, total protein, and albumin were also determined. Assessment of the genotoxic effect using in vivo alkaline comet assay was performed in the brain, liver, and kidney tissues. The results indicated significant Hb concentration reduction was recorded by all studied food additives’ combination compared to the control group. With the number of additives increases the Hb, total serum protein and albumin contents were significantly (p <0.05) decreased; in contrast, there was an increase in MDA, urea, creatinine, liver function enzyme activity, and bilirubin levels. Also, the examined food additives’ combinations exhibited genotoxic activities with different degrees compared to control rats in the brain, kidney, and liver, with the number of additives increases the genotoxic effect increased.

scholarly journals Preparing a rat brain tissue samples for acetylcholinesterase activity measurement: The MM method

2021 ◽  
Vol 52 (4) ◽  
pp. 266-272
Author(s):  
Sonja Marinković ◽  
Đorđe Đukanović ◽  
Nebojša Mandić-Kovačević ◽  
Tanja Cvjetković ◽  
Snežana Uletilović ◽  
...  
Keyword(s):  
Brain Tissue ◽  
Ache Activity ◽  
Organophosphorus Compounds ◽  
Acetylcholinesterase Activity ◽  
In Vivo Studies ◽  
Albino Rats ◽  
Activity Measurement ◽  
Tissue Samples ◽  
The Brain

Background/Aim: Organophosphorus compounds (OP) bind to acetylcholinesterase (AChE) causing an irreversible inhibition of the enzyme. When doing in vivo studies of OP intoxication, to precisely measure AChE activity in the brain tissue it is necessary to remove as much blood from the brain as possible. By doing so, interference of the OPs present in the blood is avoided. Usually this demands expensive equipment, therefore, the aim of this study was to find a simple and economical method to eliminate the blood from brain blood vessels. Methods: Wistar albino rats were divided into four groups named Control (C), Control washout (CW), Paraoxon (Pox) and Paraoxon washout (PoxW) group. Rats in Pox and PoxW were treated with 0.25 mg/kg paraoxon subcutaneously (sc), while C and CW received 1 mL/kg sc saline instead. The "Marinković-Maksimović" ("MM") method was performed in rats from PoxW and CW groups. Activity of AChE was measured both in erythrocyte lysate and in brain tissue using spectrophotometry. Results: Macroscopic examination revealed that the elimination of blood was achieved in CW and PoxW groups. Activity of AChE in homogenised brain tissue was expectedly lower in the Pox and PoxW group, when compared to C and CW group, respectively. The CW group had a lower value of AChE activity in the brain tissue compared to C group, while activity of AChE in the PoxW group was statistically higher than in the Pox group (p = 0.044). Conclusion: The MM method provides good elimination of blood from the brain. Together with blood, present confounding factors that interfere with analysis in homogenised brain tissue, were also eliminated.

scholarly journals Effect of antihyperlipidemic polyherbal formulation in high diet induced hyperlipidemia wistar albino rats. An in vitro - in vivo evaluation

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 1531-1538
Author(s):  
Smitha Rani ◽  
Manju Sreedharan Nair Leelabai Amma ◽  
Sarada Nallani Chakravarthula
Keyword(s):  
Total Serum ◽  
Albino Rats ◽  
Total Serum Cholesterol ◽  
Low Density ◽  
Polyherbal Formulation ◽  
Anti Oxidant ◽  
In Vivo Analysis ◽  
Wistar Albino Rats

Hyperlipidemia is a prevalent global health problem, and it is linked to various cardiovascular disorders. The side effects of the current lipid-lowering drugs have increased the tendency to move toward traditional and alternative remedies. The study aims to Formulate and evaluate the Antilipidemic activity of Polyherbal formulations used as a traditional medicine in the Malabar area, Kerala by in vitro and in vivo methods. Further, the present study also compares the impact of seasonal variations on chemical contents of ingredient herbs of polyherbal medicine. They were analyzed for, anti-oxidant activity by DPPH and Nitric oxide method and In-vitro anti-cholesterol activity by cholesterol enzymatic endpoint method using simavastatin as a positive control. The formulation showing highest anti-oxidant and in- vitro Antilipidemic activity was selected for in-vivo analysis. Out of four formulations, PHF 1 shows low IC50  values in DPPH and Nitric oxide methods (250.45± 0.60, 985.40±5.59), respectively. The in-vitro anti-cholesterol activity showed a maximum % of inhibition for PHF1. Based on this PHF 1was selected for in vivo analysis. Acute toxicity was performed according to OECD guidelines. The antilipidemic activity was conducted by  Diet-induced hyperlipidemia model in Wistar albino rats, containing six animals in each group. All the groups except saline control received a high-fat diet for two weeks. The Polyherbal formulation (200 mg/kg & 400 mg/kg) showed significant (P<0.05) reduction in total serum cholesterol and lipid levels compared to the vehicle control group. This present study proved that Polyherbal formulation has Antilipidemic activity against the diet-induced hyperlipidemia model by reducing the total serum cholesterol (TC), triglycerides (TG), very low-density lipid (VLDL), low-density lipids(LDL) levels and increasing high-density lipid (HDL) level.

scholarly journals The Role of Lipid Profile as an Independent Predictor of Non-alcoholic Steatosis and Steatohepatitis in Morbidly Obese Patients

2021 ◽  
Vol 8 ◽  
Author(s):  
Narges Ashraf Ganjooei ◽  
Tannaz Jamialahmadi ◽  
Mohsen Nematy ◽  
Ali Jangjoo ◽  
Ladan Goshayeshi ◽  
...  
Keyword(s):  
Liver Fibrosis ◽  
Lipid Profile ◽  
Liver Steatosis ◽  
Hdl Cholesterol ◽  
Total Serum ◽  
Total Serum Cholesterol ◽  
Morbidly Obese ◽  
Obese Patients ◽  
Alcoholic Fatty Liver ◽  
Increased Risk

Background and Aims: Obesity is one of the major health problems worldwide. Morbid obesity (body mass index &gt;40 kg/m2 or over 35 with a comorbidity) is associated, apart from other diseases, with an increased risk of non-alcoholic fatty liver disease (NAFLD). Moreover, dyslipidemia is an important comorbidity that is frequently found in NAFLD patients. The aim of this study was to analyze whether serum lipids in morbidly obese patients are associated with the spectrum of NAFLD.Methods: Total serum cholesterol, LDL cholesterol, HDL cholesterol, non-HDL cholesterol, VLDL, and triglycerides were analyzed in 90 morbidly obese patients. The association of lipid profile parameters with histopathological, elastographic, and sonographic indices of NAFLD, non-alcoholic steatohepatitis (NASH), and liver fibrosis were explored.Results: The mean levels of serum total cholesterol, LDL-C, and non-HDL cholesterol in patients with positive histology for liver steatosis and NASH were significantly higher than those in patients with negative histology. None of the indices showed a strong association with NAFLD, NASH, or liver fibrosis after adjustment for potential confounders.Conclusion: A slight predictive value of lipid profile is not sufficiently enough to use solely as a non-invasive test in predicting NASH or liver fibrosis.

Biomedical applications: Pitfalls in the practice

1994 ◽  
Vol 52 ◽  
pp. 378-379
Author(s):  
J. D. Shelburne ◽  
Peter Ingram ◽  
Victor L. Roggli ◽  
Ann LeFurgey
Keyword(s):  
Operating Room ◽  
Liquid Nitrogen ◽  
Lung Tissue ◽  
Biomedical Applications ◽  
Microprobe Analysis ◽  
Tissue Sample ◽  
Cellular Level ◽  
Tissue Samples ◽  
Asbestos Fibers

At present most medical microprobe analysis is conducted on insoluble particulates such as asbestos fibers in lung tissue. Cryotechniques are not necessary for this type of specimen. Insoluble particulates can be processed conventionally. Nevertheless, it is important to emphasize that conventional processing is unacceptable for specimens in which electrolyte distributions in tissues are sought. It is necessary to flash-freeze in order to preserve the integrity of electrolyte distributions at the subcellular and cellular level. Ideally, biopsies should be flash-frozen in the operating room rather than being frozen several minutes later in a histology laboratory. Electrolytes will move during such a long delay. While flammable cryogens such as propane obviously cannot be used in an operating room, liquid nitrogen-cooled slam-freezing devices or guns may be permitted, and are the best way to achieve an artifact-free, accurate tissue sample which truly reflects the in vivo state. Unfortunately, the importance of cryofixation is often not understood. Investigators bring tissue samples fixed in glutaraldehyde to a microprobe laboratory with a request for microprobe analysis for electrolytes.

Scintigraphic Detection of Experimental Myocardial Infarction with 99mTc-2,3-Dimercaptosuccinic Acid

1984 ◽  
Vol 23 (06) ◽  
pp. 317-319
Author(s):  
J. Novák ◽  
Y. Mazurová ◽  
J. Kubíček ◽  
J. Yižd’a ◽  
P. Kafka ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Intravenous Administration ◽  
Experimental Myocardial Infarction ◽  
Myocardial Infarctions ◽  
Clinical Use ◽  
Scintigraphic Imaging ◽  
Tissue Samples ◽  
Scintigraphic Finding

SummaryAcute myocardial infarctions were produced by ligature of the left frontal descending coronary artery in 9 dogs. The possibility of scintigraphic imaging with 99mTc-DMSA 4 hrs after intravenous administration was studied. The infarctions were 4, 24 and 48 hrs old. The in vivo scan was positive in only one dog with a 4-hr old infarction. The in vivo scans were confirmed by the analysis of the radioactivity in tissue samples. The accumulation of the radiopharmaceutical increased slightly in 48-hr old lesions; however, this increase was not sufficient for a positive scintigraphic finding. Thus, we do not recommend 99mTc-DMSA for clinical use in acute lesions.

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