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- Volume 11, Issue 1, 2012
Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry (Formerly Current Medicinal Chemistry - Anti-Inflammatory and Anti-Allergy Agents) - Volume 11, Issue 1, 2012
Volume 11, Issue 1, 2012
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Naturally Occurring and Synthetic Agents as Potential Anti-Inflammatory and Immunomodulants
Authors: Nighat Sultana and Zafar Saeed SaifyTerpenes in general and triterpenes in particular showed anti-inflammatory activity and act as immunomodulators in nutraceutical agents. Antiinflammation, a useful and attractive approach in experimental oncology, helps to investigate the inflammation preventive potential of natural products and synthetic entities. During the course of our research work in natural product chemistry and synthesis of novel structures in the field of heterocyclic chemistry, we found interesting results. In natural product betulinic acid, α-amyrin acetate, lupeol acetate, oleanolic acid, ursolic acid and their derivatives showed interesting potential analgesic and anti-inflammatory activity. In this review specific reference has been made to novel classes and newly discovered compounds in the literature, which exhibited required activities. Indomethacine is a potent synthetic compound, which becomes the basis of novel anti-inflammatory agents. Shen postulated a receptor theory which indicates the physical parameters responsible for anti-inflammatory activity. Attempt has been made to cover almost all the anti-inflammatory agents which fall under the various chemical structural classes of compounds showing required activity. The objective of this review is to compile relevant data on the mechanism of action of terpenes isolated from active ethnomedicinal plants to examine the role terpenoids have in medicinal plants used against inflammatory diseases, especially those in which an immune response is implicated. In addition, a selection of several structurally related compounds has been compiled in order to analyze the possible structural characteristics and relationships between the different types of structures found in triterpenoids. The selection of active species was made on the basis of their immunomodulatory activity, and their role in the resolution of diseases in which the immune system is implicated to examine the mechanism by which they are useful as ethnopharmacological medicines. These terpenes include ursolic acid, oleanolic acid, betulinic acid. This review discusses in detail the preclinical studies conducted with triterpenes and provides an insight into its mechanism of action.
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Role of Formyl Peptide Receptors (FPR) in Abnormal Inflammation Responses Involved in Neurodegenerative Diseases
Authors: Adriano Mollica, Azzurra Stefanucci, Roberto Costante and Francesco PinnenNeurodegenerative disorders, such as multiple sclerosis, prion diseases, Alzheimer's disease and Parkinson's disease are often associated with inflammatory process, which involves various components of the immune system in the central nervous system, in particular astrocytes and microglial cells. Inflammation mediators such as cytokines, leukotrienes, superoxide radicals, eicosanoids, the complement cascade, and FPR agonists (formyl peptides) may play a significant role in pro-inflammatory responses, in which infiltration of activated mononuclear phagocytes at the sites of lesion is a common feature. To prevent long-term inflammation damage, the central nervous system could be treated with antinflammatory agents such as non-steroidal anti-inflammatory drugs (NSAIDs), but only few drugs were found to be effective and their therapeutic benefits is limited by side effects. Accumulating evidences suggest that targeting glia-neuron system might be a therapeutic approach in the treatment of neurodegenerative disease progression, in particular of Alzheimer's disease. Aminopyridazine derivative discovered in unbiased cell-based screens for new synthetic compounds, have proved to be able to suppress selective glial activation responses via mechanisms distinct from NSAIDs. In this review, we report the potential involvement of FPR receptors in inflammatory responses and the potential use of their antagonists to modulate the inflammatory responses of the microglia. Recent results demonstrate that targeting of inflammatory glia cytokine pathways, can suppress Aβ-induced neuroinflammation in vivo, resulting in the attenuation of neuronal damage.
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Anti-Inflammatory Properties of Drugs from saffron crocus
Authors: Anna Poma, Gabriella Fontecchio, Giuseppe Carlucci and Giuseppe ChichiriccoThe medicinal uses of saffron (Crocus sativus Linnaeus) have a long history beginning in Asian countries since the Late Bronze Age. Recent studies have validated its potential to lower the risk of several diseases. Some metabolites derived from saffron stigmas exert numerous therapeutic effects due to hypolipidemic, antitussive, antioxidant, antidiabetic activities and many others. Water and ethanol extracts of Crocus sativus L. are cardioprotective and counteract neurodegenerative disorders. Many of these medicinal properties of saffron can be attributed to a number of its compounds such as crocetin, crocins and other substances having strong antioxidant and radical scavenger properties against a variety of radical oxygen species and pro-inflammatory cytokines. Botany, worldwide spreading of cultivars, biochemical pathways, active constituents and chemical detection methods are reviewed. Therapeutic uses of saffron principles with particular regard to those exhibiting antioxidant and thus anti-inflammatory features are discussed. To date, very few adverse health effects of saffron have been demonstrated. At high doses (more than 5 g/die day), it should be avoided in pregnancy owing to its uterine stimulation activity.
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Clinical Pharmacology of Non-Steroidal Anti-Inflammatory Drugs: A Review
Authors: S. Bacchi, P. Palumbo, A. Sponta and M.F. CoppolinoNon-steroidal anti-inflammatory drugs (NSAIDs) are a group of often chemically unrelated compounds with some common therapeutic actions and side effects. They have potent anti-inflammatory, analgesic and antipyretic activity, and are among the most widely used drugs worldwide. It is generally thought that one of their main mechanisms of action is the inhibition of cyclo-oxygenase (COX), the enzyme responsible for biosynthesing the prostaglandins and thromboxane. NSAIDs are also associated with an increased risk of adverse gastrointestinal, renal and cardiovascular effects. This review describes the clinical pharmacology of NSAIDs, their classification, molecular mechanisms of action and adverse effects, including their possible contribution to neuro-inflammation and carcinogenesis, as well as some recent developments aimed at designing effective anti-inflammatory agents with improved safety and tolerability profiles.
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Isolation and Quantitative Methods for Analysis of Non-Steroidal Anti-Inflammatory Drugs
Authors: Ana I. Olives, Victor Gonzalez-Ruiz and M. Antonia MartinNon-steroidal anti-inflammatory drugs are widespread employed in both human and animal health care to reduce ongoing inflammation, pain and fever due to their anti-inflammatory, analgesic and, antipyretic actions. Apart from the well-known biological samples, nowadays these compounds are frequently found in the environment, leading to longterm exposure resulting in adverse effects on humans and wildlife. Therefore, it is important to develop analytical methodologies to detect and control the presence of these pharmaceuticals in very different kinds of samples, from urine, serum or plasma, to river and waste water, sediments or sewage sludge, most of them having very complex matrices. Other problems to solve are the low concentration of the target analytes, the presence of a great number of potential interferences and, sometimes, incompatibilities with the detection systems. Consequently, sample pre-treatment is a very important step to take into account in the non-steroidal anti-inflammatory drugs determination. Herein we reviewed the main extraction and clean-up procedures reported in the literature for these substances: ultrasonic extraction, Soxhlet extraction, pressurized- liquid extraction, supercritical fluid extraction, microwave-assisted extraction, dispersive liquid-liquid microextraction, hollow fiber liquid phase microextraction, pressurized hot water extraction, solid-phase extraction, molecularly imprinted solid-phase extraction and solid-phase microextraction. Several analytical methodologies have been developed to quantify non-steroidal anti-inflammatory drugs, including gas chromatography-mass spectrometry, liquid chromatography with ultraviolet detection, diode array detection, fluorescence detection and tandem mass spectrometry.
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Analysis of Anti-Inflammatory Enantiomers by HPLC in Human Plasma and Urine: A Review
Authors: Giuseppe Carlucci, Maura Carlucci and Marcello LocatelliThe analysis of drugs in various biological fluids is an important criterion for the determination of the physiological performance of a drug. NSAIDs are non-selective inhibitors of prostaglandin biosynthesis and indicated for the acute or long-term treatment of the signs and symptoms of rheumatoid arthritis and osteoarthritis. This paper reviews the recent developments in bioanalysis of these drugs. In particular, sample preparation end, handling procedures, chromatographic conditions and detection methods are discussed. A summary of published HPLC assays for individual antiinflammatory drugs is included.
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Volumes & issues
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Volume 23 (2024)
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Volume 22 (2023)
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Volume 21 (2022)
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Volume 20 (2021)
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Volume 19 (2020)
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Volume 18 (2019)
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Volume 17 (2018)
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Volume 16 (2017)
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Volume 15 (2016)
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Volume 14 (2015)
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Volume 13 (2014)
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Volume 12 (2013)
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Volume 11 (2012)
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Volume 10 (2011)
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Volume 9 (2010)
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Volume 8 (2009)
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Volume 7 (2008)
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Volume 6 (2007)
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Volume 5 (2006)