scholarly journals The Intervention and Mechanism of Action for Aloin against Subchronic Aflatoxin B1 Induced Hepatic Injury in Rats

2021 ◽  
Vol 22 (21) ◽  
pp. 11620
Author(s):  
Hanyi Hua ◽  
Jie Sheng ◽  
Yan Cui ◽  
Wenyi Zhang ◽  
Bin Hu ◽  
...  
Keyword(s):  
Hepatic Injury ◽  
Potential Role ◽  
Neuroprotective Effect ◽  
Liver Lipid ◽  
Protective Agent ◽  
Weight Growth ◽  
Organ Index ◽  
Albumin Content ◽  
Liver Lipid Peroxidation

As a class of difurancoumarin compounds with similar structures, aflatoxins (AF) are commonly found in the environment, soil, and food crops. AF pose a serious threat to the health of humans, poultry, and livestock. This study aimed to investigate the neuroprotective effect and detailed mechanism of aloin on hepatic injury induced by subchronic AFB1 in rats. The result showed that aloin could significantly inhibit the decrease in food intake, body weight growth, immune organ index, and serum albumin content caused by long-term AFB1 exposure. Meanwhile, aloin reduced the level of serum liver function and improved renal swelling and pathological changes of liver tissue. Aloin could also inhibit liver lipid peroxidation and improve liver antioxidant capacity. Further investigation revealed that aloin inhibited the activity and expression of hepatic CYP1A2 and CYP3A4 and down-regulated IL-1β expression in subchronic AFB1-induced liver injury rats. The above study demonstrated that aloin played an important role in blocking or delaying the development process of subchronic AFB1-induced hepatotoxicity. Therefore, aloin is considered to have a potential role as a protective agent against AFB1.

The protective effect of Nigella Sativa oil extract against neurotoxicity induced by Valproic acid

2017 ◽  
Vol 6 (9) ◽  
pp. 5474 ◽  
Author(s):  
Basant Mahmoud Morsy ◽  
Ghada Mohamed Safwat ◽  
Doaa Ahmed Hussein ◽  
Reem Mohamed Samy
Keyword(s):  
Valproic Acid ◽  
Nigella Sativa ◽  
Liver Lipid ◽  
Black Cumin ◽  
Enzymatic Antioxidant ◽  
Nigella Sativa Oil ◽  
Active Chemical ◽  
Oil Extract ◽  
Liver Lipid Peroxidation

Nigella sativa (NS), commonly known as black cumin, has been used for medicinal purposes. Traditionally the seeds and its oil are used in several diseases. The greatest part of the remedial properties of this plant is due to the presence of thymoquinone (TQ) which is a major active chemical component of the essential oil. The current study performed to evaluate the effect of Nigella sativa Oil (NSO) extract on the neurotoxic and hepatotoxic potentials from Valproic acid (VPA) administration. Also we summarize recent findings emphasizing the role of main neurotoxic and hepatotoxic markers and oxidative stress in study’s case. Neurotoxicity was induced by VPA at dose of (500 mg/kg b.wt) by gastric intubation daily for 30 day. These rats received NSO extract was given orally at dose of (0.5 ml/kg b.wt) daily for 30 days after VPA administration. The current results revealed that NSO extract treatment ameliorated significantly the elevated levels of the neurotoxic and hepatotoxic biomarkers which elevated as a result to VPA administration. Moreover, NSO extract treatment ameliorated the non-enzymatic antioxidant, brain and liver lipid peroxidation (LPO) and glutathione (GSH) concentration and the enzymatic antioxidant, brain and liver catalase(CAT) activity.

IDENTIFYING LONG-TERM SEAWATER CIRCULATION IN COASTAL AQUIFERS AND ITS POTENTIAL ROLE IN OCEAN CHEMISTRY

2017 ◽  
Author(s):  
Yael Kiro ◽  
◽  
Holly A. Michael ◽  
Carlos Duque ◽  
Yoseph Yechieli
Keyword(s):  
Coastal Aquifers ◽  
Potential Role ◽  
Ocean Chemistry

scholarly journals Long-Term Caloric Restriction Attenuates β-Amyloid Neuropathology and Is Accompanied by Autophagy in APPswe/PS1delta9 Mice

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 985
Author(s):  
Luisa Müller ◽  
Nicole Power Guerra ◽  
Jan Stenzel ◽  
Claire Rühlmann ◽  
Tobias Lindner ◽  
...  
Keyword(s):  
Caloric Restriction ◽  
Neuroprotective Effect ◽  
Resonance Spectroscopy ◽  
Neuroprotective Effects ◽  
Beneficial Effects ◽  
Positron Emission ◽  
Pet Ct ◽  
Amyloid Aβ ◽  
Β Amyloid

Caloric restriction (CR) slows the aging process, extends lifespan, and exerts neuroprotective effects. It is widely accepted that CR attenuates β-amyloid (Aβ) neuropathology in models of Alzheimer’s disease (AD) by so-far unknown mechanisms. One promising process induced by CR is autophagy, which is known to degrade aggregated proteins such as amyloids. In addition, autophagy positively regulates glucose uptake and may improve cerebral hypometabolism—a hallmark of AD—and, consequently, neural activity. To evaluate this hypothesis, APPswe/PS1delta9 (tg) mice and their littermates (wild-type, wt) underwent CR for either 16 or 68 weeks. Whereas short-term CR for 16 weeks revealed no noteworthy changes of AD phenotype in tg mice, long-term CR for 68 weeks showed beneficial effects. Thus, cerebral glucose metabolism and neuronal integrity were markedly increased upon 68 weeks CR in tg mice, indicated by an elevated hippocampal fluorodeoxyglucose [18F] ([18F]FDG) uptake and increased N-acetylaspartate-to-creatine ratio using positron emission tomography/computer tomography (PET/CT) imaging and magnet resonance spectroscopy (MRS). Improved neuronal activity and integrity resulted in a better cognitive performance within the Morris Water Maze. Moreover, CR for 68 weeks caused a significant increase of LC3BII and p62 protein expression, showing enhanced autophagy. Additionally, a significant decrease of Aβ plaques in tg mice in the hippocampus was observed, accompanied by reduced microgliosis as indicated by significantly decreased numbers of iba1-positive cells. In summary, long-term CR revealed an overall neuroprotective effect in tg mice. Further, this study shows, for the first time, that CR-induced autophagy in tg mice accompanies the observed attenuation of Aβ pathology.

A Neuroprotective Effect of the Glutamate Receptor Antagonist MK801 on Long-Term Cognitive and Behavioral Outcomes Secondary to Experimental Cerebral Malaria

2016 ◽  
Vol 54 (9) ◽  
pp. 7063-7082 ◽  
Author(s):  
Aline Silva de Miranda ◽  
Fátima Brant ◽  
Luciene Bruno Vieira ◽  
Natália Pessoa Rocha ◽  
Érica Leandro Marciano Vieira ◽  
...  
Keyword(s):  
Receptor Antagonist ◽  
Cerebral Malaria ◽  
Glutamate Receptor ◽  
Neuroprotective Effect ◽  
Behavioral Outcomes ◽  
Glutamate Receptor Antagonist ◽  
Experimental Cerebral Malaria

Prevention of Cardiac Hypertrophy in Experimental Chronic Renal Failure by Long-Term ACE Inhibitor Administration: Potential Role of Lysosomal Proteinases

1995 ◽  
Vol 15 (2) ◽  
pp. 129-136 ◽  
Author(s):  
Hiroaki Suzuki ◽  
Liliana Schaefer ◽  
Hong Ling ◽  
Roland M. Schaefer ◽  
Jobst Dämmrich ◽  
...  
Keyword(s):  
Renal Failure ◽  
Chronic Renal Failure ◽  
Cardiac Hypertrophy ◽  
Potential Role ◽  
Ace Inhibitor ◽  
Lysosomal Proteinases

Neuroprotective Effect of Long-term MgSO4 Administration After Cerebral Hypoxia-Ischemia in Newborn Rats Is Related to the Severity of Brain Damage

2007 ◽  
Vol 14 (7) ◽  
pp. 667-677 ◽  
Author(s):  
Evangelia Spandou ◽  
Vassiliki Soubasi ◽  
Stamatia Papoutsopoulou ◽  
Persefoni Augoustides-Savvopoulou ◽  
Theodoros Loizidis ◽  
...  
Keyword(s):  
Brain Damage ◽  
Neuroprotective Effect ◽  
Cerebral Hypoxia ◽  
Newborn Rats ◽  
Hypoxia Ischemia

scholarly journals Neuroprotective Effect of Grewia carpinifolia Extract against Vanadium Induced Behavioural Impairment

2016 ◽  
Vol 60 (4) ◽  
pp. 5-13 ◽  
Author(s):  
O. E. Adebiyi ◽  
J. O. Olopade ◽  
F. O. Olayemi
Keyword(s):  
Neuroprotective Effect ◽  
Ethanolic Extract ◽  
Control Group ◽  
Protective Agent ◽  
Central Nervous System Toxicity ◽  
Sodium Metavanadate ◽  
Latent Time ◽  
Group A ◽  
Vanadium Toxicity ◽  
Group B

Abstract Vanadium (V), a heavy metal, has been reported to induce central nervous system toxicity leading to various behavioural impairments. It is characterized by the production of reactive oxygen. The present study was designed to test the possibility of Grewia carpinifolia ethanolic extract in preventing behavioural alterations following acute vanadium toxicity in mice. Twenty five Swiss albino mice (25—27 g) were completely randomized into 5 groups (A—E) of 5 animals each. Group A received distilled water and served as a control; group B, received vitamin E (500 mg.kg−1 b. w. every 72 hours), a known antioxidant orally, along with a daily dose of sodium metavanadate intraperitoneally (i. p.) for 7 days; group C and group D received Grewia carpinifolia leaf extract at 100 and 200 mg.kg−1 b.w orally respectively, along with the sodium metavanadate i. p. for 7 days; while group E received sodium metavanadate i. p. only for 7 days. The behavioural and motor functions were analysed by the open field, negative geotaxis, and hanging wire tests; the daily body and brain weights were recorded. Grewia carpinifolia ethanolic extracts significantly reduced the number of grooming, stretched attend posture, and freezing time that were significantly increased in the vanadium only group and also enhanced the vestibular functions. In addition, the latent time spent on the hanging wire in groups simultaneously administered with the extract and V compared favourably (P > 0.05) with the control groups but a decrease in latent time was observed in the V only group. The results suggest that acute V toxicity results in various behavioural deficits and support a possible role of Grewia carpinifolia as a protective agent against acute vanadium-toxicity with a better result at 200 mg.kg−1 b. w.

scholarly journals Duodenal Dysbiosis and Relation to the Efficacy of Proton Pump Inhibitors in Functional Dyspepsia

2021 ◽  
Vol 22 (24) ◽  
pp. 13609
Author(s):  
Lucas Wauters ◽  
Raúl Y. Tito ◽  
Matthias Ceulemans ◽  
Maarten Lambaerts ◽  
Alison Accarie ◽  
...  
Keyword(s):  
Functional Dyspepsia ◽  
Proton Pump Inhibitors ◽  
Proton Pump ◽  
Potential Role ◽  
Short Term ◽  
Beneficial Effects ◽  
Rrna Sequencing ◽  
Before And After

Proton pump inhibitors (PPI) may improve symptoms in functional dyspepsia (FD) through duodenal eosinophil-reducing effects. However, the contribution of the microbiome to FD symptoms and its interaction with PPI remains elusive. Aseptic duodenal brushings and biopsies were performed before and after PPI intake (4 weeks Pantoprazole 40 mg daily, FD-starters and controls) or withdrawal (2 months, FD-stoppers) for 16S-rRNA sequencing. Between- and within-group changes in genera or diversity and associations with symptoms or duodenal factors were analyzed. In total, 30 controls, 28 FD-starters and 19 FD-stoppers were followed. Mucus-associated Porphyromonas was lower in FD-starters vs. controls and correlated with symptoms in FD and duodenal eosinophils in both groups, while Streptococcus correlated with eosinophils in controls. Although clinical and eosinophil-reducing effects of PPI therapy were unrelated to microbiota changes in FD-starters, increased Streptococcus was associated with duodenal PPI effects in controls and remained higher despite withdrawal of long-term PPI therapy in FD-stoppers. Thus, duodenal microbiome analysis demonstrated differential mucus-associated genera, with a potential role of Porphyromonas in FD pathophysiology. While beneficial effects of short-term PPI therapy were not associated with microbial changes in FD-starters, increased Streptococcus and its association with PPIeffects in controls suggest a role for duodenal dysbiosis after long-term PPI therapy.

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