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Dec 2020 DOI 10.14302/issn.2577-2279.ijha-20-3634
Oloruntoba Adekeye AdeshinaCorresponding author
Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Nigeria
The hippocampus is involved in learning and memory processes, an integral component of cognitive function. The aim of this study is to assess the efficacy of quercetin on manganese-induced neurotoxicity in the hippocampus of the adult mice. In this study, 40 adult mice of average weight of 18 –29g were randomly distributed into five groups of eight each. The brain was harvested and the region of the hippocampus was grossed for histological and immunohistochemical analysis. The results revealed a significant increased level of oxidative stress markers of manganese treated mice when compared with the normal control and quercetin treated animals (p<0.05). Immunohistochemical analysis also showed a decrease expression of Tumour necrosis factor alpha (TNFα) with quercetin treated animals when compared with manganese treated animals indicating its neuroprotective function. In addition, quercetin treated animals all had an improved working spatial memory in Y-maze test. The histological results also revealed a degeneration of pyramidal cells with a characteristic pyknotic activities at the granular layer of the hippocampus leading to neuronal integrity damage following chronic exposure to manganese but normal architectural design was however maintained with quercetin. Conclusively, exposure to manganese in excess may have adverse effect on extensive neuronal degeneration that could affect the learning, memory and possibly spatial navigation ability of miceand quercetin attenuates this induced neurotoxicity via inhibition of oxidative stress and reduction of TNF expression.
Dec 2025
Liu LipingCorresponding author
The incidence rate of melasma is notably high among patients with anxiety disorders. Aromatherapy primarily influences the physiological and psychological states of individuals through the inhalation or application of essential oils, thereby facilitating the treatment or alleviation of various conditions. This study aims to explore the action mechanism of complex lemon-angelica sinensis -boswellia essential oil (CEO) in treating anxiety disorders with melasma. We investigated the active ingredients, targets, and pathways of CEO in relation to anxiety and melasma using network pharmacology. We employed cell assays and conducted nebulized essential oil inhalation tests on CUMS mice to validate the intervention effects of CEO on anxiety. A total of 28 active components, including neryl acetate, 3-butenylphthalide and octyl acetate, and 26 cross-targets, such as ESR1, CCND1 and PIK3CA, were identified. GO and KEGG pathway analyses indicated that these cross-targets were primarily involved in endocrine regulation, cell proliferation, and apoptosis, specifically through PI3K/Akt signaling pathway and calcium signaling pathway. The experimental results demonstrated that CEO significantly reduced the secretion of NO, TNF-a and IL-6, as well as the mRNA expressions of ESR1, CCND1 and PIK3CA in cells compared to the inflammatory cell model. Furthermore, CEO notably decreased the forced swimming immobility time of mice and the levels of IL-1β, ESR1 and CCND1 in hippocampus when compared to model mice. These findings suggest that CEO may regulate ESR1, CCND1 and PIK3CA through its citral, 3-butylphthalate and neryl acetate, thereby influencing endocrine function, cell proliferation and apoptosis, inhibiting inflammation and anxiety-like behavior in CUMS-induced mice.
Apr 2024 DOI 10.14302/issn.2998-4211.jalr-24-4926
Bahadur Khan FaizaCorresponding author
This article has been retracted on 20 March 2025. VIEW THE RETRACTION NOTICE (https://doi.org/10.14302/issn.2998-4211.jalr-25-5855) The research is focused on neuroinflammation a normal physiological process which is known to be associated with neurodegenerative diseases could be the potential targeted therapy via the microglia cells, it starts with defining Alzheimer’s; a neurodegenerative disease which causes deposition of Aβ (amyloid beta) protein in the cerebral cortex as well as NFT (neurofibrillary tangles) in the hippocampus and basal ganglia. The paper then describes process of neuroinflammation, microglia’s role, apolipoprotein E4 gene in relation to Alzheimer’s, which leads to different stem cell research and how pruning microglia as well as targeting microglia receptors in the brain is being used in current research trials, we included multiple meta-analysis showing microglia receptors being targeted currently by emerging drugs like propofol, antibodies CSF1R inhibitor etc, which are currently under trial phase, the research ends with concluding potential diagnostic markers like sirt1 considered to be an anti-aging protein which can be used as therapeutic interventions and Lps effect on Sirt 1. A Microglia initiated target therapy in Neuroinflammation for Alzheimer’s Patients.
May 2017 DOI 10.14302/issn.2694-1201.jsn-17-1470
Domenico ChirchigliaCorresponding author
Professor of Department of Neurosurgery, University of Catanzaro
Brain tumors occur when abnormal cells form within the brain.There are two main types of tumors: malignant and benign tumors. Then, tumors can be divided into primary that start within the brain, and secondary tumors that have spread from somewhere else, known as brain metastasis tumors. Secondary brain tumors occur in approximately 15 % of cancer patients with about half of metastases coming from lung cancer. Primary brain tumors occur in around 250,000 people a year globally, making up less than 2% of whole body tumors. According to American Brain Tumor Association the most common types of primary tumors are gliomas, representing 74,6 % of all malignant tumors and meningiomas ( 36,6% ) while more affected region is frontal lobe, about 22 % . Particularly, prefrontal cortex ( PFC ), the anterior part of the frontal lobe that is highly developed in humans plays a role in the regulation of personality, emotional, and behavioral functioning, leading to serious cognitive impairments 1. These are the psychological signs of frontal lobe tumors, in addition to other functions such as the expressive language of Broca's area or those relating to voluntary movement, linked to frontal cortical motor areas. It relates to the so-called higher nervous functions, concerning the life of relationship and communication. The PFC physiology explains the psychological mechanisms of its associated functions: connections with the limbic cortex, thalamus, hypothalamus, basal ganglia and other subcortical areas.The regions of the PFC at the base of the psychophysiological mechanisms involved are basically the dorso-lateral, the ventro-medial, the orbito-frontal establishing contacts primarily with limbic structures, such as the cingulate gyrus, hippocampus, amygdala.