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118. Petroselinum crispumextract ameliorates scopolamine-induced cognitive dysfunction: role on apoptosis, inflammation and oxidative stress

Author

Şener, Göksel, Karakadıoglu, Gözde, Ozbeyli, Dilek, Ede, Seren, Yanardag, Refiye, Sacan, Ozlem, and Aykac, Asli

Abstract

This study was designed to investigate whether Petroselinum crispum(PC) extract has protective effects on the brain in the scopolamine-induced Alzheimer’s disease (AD) rat model. The rats were divided into; control, scopolamine (1 mg/kg, i.p.), galantamine (1.5 mg/kg, i.p.) and PC extract (2 g/kg, p.o.)-treated scopolamine groups. On day 14, the novel object recognition test (NORT) and Morris water maze test (MWMT) were performed and then the rats were sacrificed. Scopolamine-induced cognitive impairments observed in the NORT and MWMT, significantly improved with PC extract and galantamine treatments. Scopolamine reduced M1receptor expression, Bcl-2/Bax ratio, and glutathione levels in the hippocampus and frontal cortex, while malondialdehyde levels, caspase-3/9 expressions, and acetylcholinesterase (AChE) activity were found to be increased. On the other hand, PC and galantamine treatments reversed these changes. In conclusion, PC extract has shown an ameliorative effect on the spatial and recognition memory, M1receptor expression, apoptosis, oxidative stress, and increased AChE activity. Thus, it was concluded that PC could prevent AD-like conditions and can be used as a functional food. However, since animal models do not completely mimic those of humans, based on the data obtained in this study, the importance of PC on human AD should be demonstrated in future studies.

Published
2022
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136. Effects of Myrtus communis L. Extract and Apocynin on Lens Oxidative Damage and Boron Levels in Rats with a High Fat-Diet.

Author

Yaşar, Rüya Kuru, Kuru, Dilruba, Şen, Ali, Şener, Göksel, Ercan, Feriha, and Yarat, Ayşen

Subjects
GLUTATHIONE, TRIGLYCERIDES, MEDICINAL plants, FAT content of food, COMBINATION drug therapy, BODY weight, ANIMAL experimentation, SUPEROXIDE dismutase, CHEMICAL elements, RATS, CATALASE, MALONDIALDEHYDE, PLANT extracts, ENZYME inhibitors, CRYSTALLINE lens, LIPIDS, CHOLESTEROL, PHARMACODYNAMICS
Abstract

Objectives: Nutritional obesity causes oxidant damage in the body and cataract formation in the lenses by increasing the formation of free radicals. Myrtus communis leaf extracts (Myr) have antioxidant properties, and apocynin (Apo) is an effective NADPH-oxidase inhibitor. The data on tissue boron levels are quite lacking. The aim of this novel study was to investigate the effects of Myr and Apo treatment on boron levels and oxidative lens damage in rats fed a high-fat diet (HFD). Materials and Methods: Wistar albino male rats were randomly divided into four groups: the control group, HFD group, HFD + Myr group, and HFD + Apo group. Body weight and blood lipids were determined before and after the experiment. After decapitating the rats, the lenses were removed and homogenized. Catalase (CAT) and superoxide dismutase (SOD) activities and boron, malondialdehyde (MDA), and reduced glutathione (GSH) levels in the lens homogenates were determined. Results: The HFD increased serum triglyceride (p<0.05), total cholesterol level (p<0.001), body weight (p<0.001), and lens MDA levels (p<0.01) and decreased lens GSH (p<0.05) and boron level (p<0.01), SOD (p<0.001), and CAT activity (p<0.001). However, Myr and Apo treatment reduced the rats' body weight (p<0.001), serum triglyceride (p<0.05), and total cholesterol level (p<0.001) and increased lens boron (p<0.01; p<0.001), GSH levels (p<0.05; p<0.01), and CAT activity (p<0.001). Conclusion: Both Myr and Apo may be able to reduce oxidative stress in the lenses of obese rats caused by HFD by increasing boron levels. [ABSTRACT FROM AUTHOR]

Published
2021
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150. Beta vulgaris L. var. cicla improves memory deficits in intracerebroventricular streptozotocin injected rats: Role on neuroinflammation.

Author

ERTAŞ, Büşra, TOPAL, Fadime, GÜLHAN, Rezzan, YANARDAĞ, Refiye, SAÇAN, Özlem, and ŞENER, Göksel

Subjects
BEETS, MEMORY disorders, RATS, NEUROINFLAMMATION, STREPTOZOTOCIN, CHOLINERGIC receptors
Abstract

Alzheimer's disease is a challenging disease for patients due to progressive loss of cognition and behavioral disorders. Disruption of cholinergic transmission and neuroinflammation are the most important mechanisms underlying cognitive damage. Beta vulgaris L. var. cicla (BV) has been reported to have various pharmacological effects associated with its rich antioxidant content. In addition, anticholinesterase and antiinflammatory activities of BV have been demonstrated in vitro. The aim of this study is to elucidate the therapeutic effect of BV against cognitive impairment, reduction in cholinergic transmission and neuroinflammation caused by intracerebroventricular (ICV) administration of streptozotocin (STZ). STZ was administered bilaterally at a dose of 3 mg/kg via ICV to rats, and BV treatment at a dose of 2 g/kg for 21 days was administered orally to STZ-induced animals. After behavioral tests, AChE activity, TNF-α and IL-1β levels were measured in hippocampus and cortex tissues excised from decapitated animals. Novel object recognition and passive avoidance test showed that the treatment of BV reverted the ICV-STZ induced memory dysfunctions in rats. Furthermore, increased AChE levels in the hippocampal and cortical tissues of STZ-induced rats were significantly reduced with 21 days of BV treatment. In conclusion, these results confirm that STZ administration caused cholinergic hypofunction, neuronal inflammation and cognitive dysfunction in rats, and BV therapy significantly inhibited these changes with its potential neuroprotective activity. [ABSTRACT FROM AUTHOR]

Published
2021
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