Anti-inflammatory Effects of the Natural Compounds Cortex Phellodendri and Humulus japonicus on Pelvic Inflammatory Disease in Mice.
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ABSTRACT:
SUBMITTER: Oh Y
PROVIDER: S-EPMC5562126 | biostudies-other | 2017
REPOSITORIES: biostudies-other
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Project description:Arctoscopus japonicus is a cold-water marine fish. The present study investigated the fatty acid composition of A. japonicus egg lipids and their anti-inflammatory effects on LPS-stimulated RAW246.7 macrophages. The results showed that A. japonicus egg lipids contained primarily polyunsaturated fatty acids (52.9% of the total fatty acid content; mostly eicosapentaenoic acid [EPA, 21.2 ± 0.5%] and docosahexaenoic acid [DHA, 25.9 ± 0.1%]), followed by monounsaturated fatty acids and saturated fatty acids (23.7% and 23.4%, respectively). A. japonicus egg lipids significantly decreased nitric oxide (NO) production and suppressed the expression of immune-associated genes such as iNOS, COX-2, IL-1?, IL-6, and TNF-? LPS-stimulated RAW246.7 macrophages in dose-dependent manner. A. japonicus egg lipids also reduced the phosphorylation levels of NF-?B p-65, p38, ERK1/2, and JNK, key components of the NF-?B and MAPK pathways, suggesting that the lipid-induced anti-inflammatory activity is related to these signaling pathways. These results indicate that the lipids extracted from A. japonicus eggs have potential biofunctions and might be useful for regulating inflammation in macrophages.
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Project description:Anti-inflammatory effects of bone marrow mesenchymal stem cells (BMSCs) on mice with Alzheimer's disease (AD) were investigated. Twenty amyloid precursor protein (APP)/presenilin-1 (PS1) double transgenic mice were randomly divided into two groups: the AD control group and the stem cell treatment group. The normal control group consisted of 10 non-transgenic mice. The stem cell treatment group was injected with BMSCs, and the two control groups were given the same volume of normal saline. The Morris water maze test was used to compare the memory function of mice, and the relative expression levels of ?-site APP cleaving enzyme 1 (BACE1) and ?-2-macroglobulin (A2M) genes were detected by fluorescence quantitative polymerase chain reaction (qPCR). Amyloid ? (A?)1-42 content in brain tissues of mice and inflammatory cytokines, interleukin (IL)-1, IL-2, IL-10, tumor necrosis factor-? (TNF-?), and interferon-? (IFN-?) were detected using enzyme-linked immunosorbent assay (ELISA). Compared with that in the AD control group, the escape latency in the water maze in the stem cell treatment group was shortened, the time of crossing the ring for the first time was decreased, but the frequency of crossing the ring was increased (P<0.05). A?1-42 content in the AD control group was higher than that in the stem cell treatment group and the normal control group (P<0.05). The relative expression level of BACE1 gene in the stem cell treatment group was lower than that in the AD control group (P<0.05), but that of A2M gene was increased (P<0.05). At 14 days after treatment, the contents of IL-1, IL-2, TNF-? and IFN-? in blood in the stem cell treatment group were lower than those in the AD control group (P<0.05). Human BMSCs can ameliorate the symptoms of AD by decreasing the levels of inflammatory cytokines and regulating the expression of A?-related genes.
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Project description:BackgroundPelvic inflammatory disease (PID) is the result of infection ascending through the endocervix to the uterus and fallopian tubes. Inflammation driven by infected host cells appears to be central to the development of tissue damage and associated reproductive complications. Nonsteroidal anti-inflammatory agents (NSAIDs) therefore have the potential to reduce the sequelae associated with pelvic infection.MethodsA search of four electronic reference databases, an internet search for relevant grey literature and a review of the bibliographies of identified publications was used to identify studies evaluating NSAIDs in the management of PID. A predefined search strategy was used to identify studies that included women with PID aged over 16 and diagnosed after 1980. Randomized controlled trials, nonrandomized controlled trials, and cohort studies with comparison group data were included without language restriction. Two reviewers independently assessed the studies against agreed criteria and extracted relevant data using a standardized pro forma. A meta-analysis to calculate the relative risk associated with NSAID use was planned if appropriate.ResultsForty-three studies were identified. After reviewing abstracts or full texts, two randomized controlled trials were found to meet the selection criteria for inclusion. The use of NSAIDs was reported to improve tubal patency, reduce pelvic adhesions and reduce suprapubic pain but the studies were of poor quality with a high risk of bias. Meta-analysis of the data was not performed.ConclusionsInsufficient data is available to support or refute the efficacy of NSAIDs in the prevention of short or long-term complications of PID.
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Project description:A fast and effective wound healing process would substantially decrease medical costs, wound care supplies, and hospitalization significantly improving the patients' quality of life. The search for effective therapeutic approaches seems to be imperative in order to avoid the aggravation of chronic wounds. In spite of all the efforts that have been made during the recent years towards the development of artificial wound dressings, none of the currently available options combine all the requirements necessary for quick and optimal cutaneous regeneration. Therefore, technological advances in the area of temporary and permanent smart dressings for wound care are required. The development of nanoscience and nanotechnology can improve the materials and designs used in topical wound care in order to efficiently release antimicrobial, anti-inflammatory and regenerative compounds speeding up the endogenous healing process. Nanostructured dressings can overcome the limitations of the current coverings and, separately, natural origin components can also overcome the drawbacks of current antibiotics and antiseptics (mainly cytotoxicity, antibiotic resistance, and allergies). The combination of natural origin components with demonstrated antibiotic, regenerative, or anti-inflammatory properties together with nanostructured materials is a promising approach to fulfil all the requirements needed for the next generation of bioactive wound dressings. Microbially compromised wounds have been treated with different essential oils, honey, cationic peptides, aloe vera, plant extracts, and other natural origin occurring antimicrobial, anti-inflammatory, and regenerative components but the available evidence is limited and insufficient to be able to draw reliable conclusions and to extrapolate those findings to the clinical practice. The evidence and some promising preliminary results indicate that future comparative studies are justified but instead of talking about the beneficial or inert effects of those natural origin occurring materials, the scientific community leads towards the identification of the main active components involved and their mechanism of action during the corresponding healing, antimicrobial, or regenerative processes and in carrying out systematic and comparative controlled tests. Once those natural origin components have been identified and their efficacy validated through solid clinical trials, their combination within nanostructured dressings can open up new avenues in the fabrication of bioactive dressings with outstanding characteristics for wound care. The motivation of this work is to analyze the state of the art in the use of different essential oils, honey, cationic peptides, aloe vera, plant extracts, and other natural origin occurring materials as antimicrobial, anti-inflammatory and regenerative components with the aim of clarifying their potential clinical use in bioactive dressings. We conclude that, for those natural occurring materials, more clinical trials are needed to reach a sufficient level of evidence as therapeutic agents for wound healing management.
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