• Title/Summary/Keyword: Pharmacological mechanisms

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Treatment for Burning Mouth Syndrome: A Clinical Review

  • YoungJoo Shim
    • Journal of Oral Medicine and Pain
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    • v.48 no.1
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    • pp.11-15
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    • 2023
  • Burning mouth syndrome (BMS) is a chronic idiopathic orofacial pain. BMS is currently classified as a neuropathic pain condition, but it is difficult to pinpoint the precise neuropathic mechanisms involved in each patient. It is challenging to complete the cure for BMS. Clinicians should treat BMS patients based on evidence. There is pharmacological and non-pharmacological therapy in the treatment modalities of BMS. The provision of objective information and reassurance as part of cognitive behavioral therapy is critical in the treatment of BMS. This paper will review the evidence-based treatment of BMS and discuss what we need to do.

Weight Control Mechanisms and Antiobesity Functional Agents (체중조절 기전과 항비만 기능성물질)

  • Ahn, In-Sook;Park, Kun-Young;Do, Myoung-Sool
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.4
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    • pp.503-513
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    • 2007
  • The obese population has been increasing worldwide and obesity has become one of the socioeconomic problems. Obesity raises more concerns as more studies regarding its direct and indirect relativity to several diseases such as type II diabetes, hypertension, etc. are published. Since leptin, an important signal in the chronic control of food intake and energy expenditure, was discovered in 1994, there has been a great accumulation of knowledge on fighting obesity by facilitating pharmacological and nutritional strategies on the molecular level of the body weight control system. In particular, evidences are accumulating that particular food components affect our physiological function and gene expressions which are associated with body weight control. In this study, we review the four mechanisms for weight control and antiobesity functional agents such as HCA, L-carnitine, CLA, chitosan, calcium supplements capsaicin contained in red pepper, and oriental herbal mixture. We also describe about the efficacy and working mechanism of these functional agents on the basis of antiobesity mechanisms.

Rediscovery of Nefopam for the Treatment of Neuropathic Pain

  • Kim, Kyung Hoon;Abdi, Salahadin
    • The Korean Journal of Pain
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    • v.27 no.2
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    • pp.103-111
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    • 2014
  • Nefopam (NFP) is a non-opioid, non-steroidal, centrally acting analgesic drug that is derivative of the nonsedative benzoxazocine, developed and known in 1960s as fenazocine. Although the mechanisms of analgesic action of NFP are not well understood, they are similar to those of triple neurotransmitter (serotonin, norepinephrine, and dopamine) reuptake inhibitors and anticonvulsants. It has been used mainly as an analgesic drug for nociceptive pain, as well as a treatment for the prevention of postoperative shivering and hiccups. Based on NFP's mechanisms of analgesic action, it is more suitable for the treatment of neuropathic pain. Intravenous administration of NFP should be given in single doses of 20 mg slowly over 15-20 min or with continuous infusion of 60-120 mg/d to minimize adverse effects, such as nausea, cold sweating, dizziness, tachycardia, or drowsiness. The usual dose of oral administration is three to six times per day totaling 90-180 mg. The ceiling effect of its analgesia is uncertain depending on the mechanism of pain relief. In conclusion, the recently discovered dual analgesic mechanisms of action, namely, a) descending pain modulation by triple neurotransmitter reuptake inhibition similar to antidepressants, and b) inhibition of long-term potentiation mediated by NMDA from the inhibition of calcium influx like gabapentinoid anticonvulsants or blockade of voltage-sensitive sodium channels like carbamazepine, enable NFP to be used as a therapeutic agent to treat neuropathic pain.

Red ginseng (Panax ginseng Meyer) oil: A comprehensive review of extraction technologies, chemical composition, health benefits, molecular mechanisms, and safety

  • Truong, Van-Long;Jeong, Woo-Sik
    • Journal of Ginseng Research
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    • v.46 no.2
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    • pp.214-224
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    • 2022
  • Red ginseng oil (RGO), rather than the conventional aqueous extract of red ginseng, has been receiving much attention due to accumulating evidence of its functional and pharmacological potential. In this review, we describe the key extraction technologies, chemical composition, potential health benefits, and safety of RGO. This review emphasizes the proposed molecular mechanisms by which RGO is involved in various bioactivities. RGO is mainly produced using organic solvents or supercritical fluid extraction, with the choice of method greatly affecting the yield and quality of the end products. RGO contains a high unsaturated fatty acid levels along with considerable amounts of lipophilic components such as phytosterols, tocopherols, and polyacetylenes. The beneficial health properties of RGO include cellular defense, antioxidation, anti-inflammation, anti-apoptosis, chemoprevention, hair growth promotion, and skin health improvement. We propose several molecular mechanisms and signaling pathways that underlie the bioactivity of RGO. In addition, RGO is regarded as safe and nontoxic. Further studies on RGO must focus on a deeper understanding of the underlying molecular mechanisms, composition-functionality relationship, and verification of the bioactivities of RGO in clinical models. This review may provide useful information in the development of RGO-based products in nutraceuticals, functional foods, and functional cosmetics.

PHARMACOLOGICAL EFFECTS OF NOVEL QUINOLINEDIONE COMPOUNDS ON INHIBITION OF DRUG-INDUCED RELAXATION OF RAT AORTA AND THEIR PUTATIVE ACTION MECHANISM

  • Lee, Jung-Ah;Ryu, Chung-Kyu;Chung, Jin-Ho;Kim, Hwa-Jung
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.05a
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    • pp.131-131
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    • 2001
  • Two 6-(fluorinated-phenylamino)-5, 8-quinolinedione derivatives, OQ21 and OQ1, were newly synthesized as potent inhibitors of endothelial-dependent vasorelaxation. The purpose of the present study was to investigate the effect of OQ21 and OQ1 on different types of vasorelaxation and to pursue their action mechanisms. (omitted)

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Flavonoid and Skin Inflammation

  • Kim, Hyun-Pyo
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 2007.11a
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    • pp.67-73
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    • 2007
  • There have been various inflammatory skin disorders in humans including atopic dermatitis, eczema and psoriasis. Although some drugs have been used for these disorders, there is an urgent need for safer and more effective topical anti-inflammatory agents. Plant flavonoids possess anti-inflammatory activity and some of them have multiple pharmacological mechanisms, inhibition of eicosanoid metabolizing enzymes, histamine release and/or down-regulation of pro inflammatory gene expression. These properties of flavonoids may be suitable for treating chronic skin inflammatory disorders. Especially, wogonin, some prenylated flavonoids and biflavonoids have a strong potential as new anti-inflammatory agents by topical application.

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Mechanosensitive Modulation of Receptor-Mediated Crossbridge Activation and Cytoskeletal Organization in Airway Smooth Muscle

  • Hai, Chi-Ming
    • Archives of Pharmacal Research
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    • v.23 no.6
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    • pp.535-547
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    • 2000
  • Recent findings indicate that mechanical strain (deformation) exerted by the extracellular matrix modulates activation of airway smooth muscle cells. Furthermore, cytoskeletal organization in airway smooth muscle appears to be dynamic, and subject to modulation by receptor activation and mechanical strain. Mechanosensitive modulation of crossbridge activation and cytoskeletal organization may represent intracellular feedback mechanisms that limit the shortening of airway smooth muscle during bronchoconstriction. Recent findings suggest that receptor-mediated signal transduction is the primary target of mechanosensitive modulation. Mechanical strain appears to regulate the number of functional G-proteins and/or phospholipase C enzymes in the cell membrane possibly by membrane trafficking and/or protein translocation. Dense plaques, membrane structures analogous to focal adhesions, appear to be the primary target of cytoskeletal regulation. Mechanical strain and receptor-binding appear to regulate the assembly and phosphorylation of dense plaque proteins in airway smooth muscle cells. Understanding these mechanisms may reveal new pharmacological targets for control1ing airway resistance in airway diseases.

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Investigation of the Pharmacological Mechanisms and the R&D of Medical Countermeasures Against Nerve Agent Poisoning (신경작용제 해독제의 약리기전 및 연구개발)

  • Cho, Young
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.5
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    • pp.920-931
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    • 2011
  • Nerve agents are irreversible inhibitors of the cholinesterase enzyme. Exposure causes a progression of toxic signs, including hypersecretions, fasciculations, tremor, convulsions, respiratory distress, epileptiform seizures, brain injuries and death. A combined regimen of prophylaxis and therapy is the most effective medical countermeasure for dealing with the threat of nerve agent poisoning to military personnel. In this paper, the author investigated the updated technologies regarding various pre- and post-treatment drugs for nerve agents detoxification which are under development in several countries including Korea. Some characteristics of active ingredients in the formulations of drugs, their action mechanisms, and effectiveness were analyzed. Additionally, part of experimental data on the transdermal patch studied in ADD using beagle dogs was introduced.

Allergic rhinitis, sinusitis and asthma - evidence for respiratory system integration - (알레르기비염 및 부비동염과 천식의 연관성)

  • Kim, Hyun Hee
    • Clinical and Experimental Pediatrics
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    • v.50 no.4
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    • pp.335-339
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    • 2007
  • The link between upper airway disease (allergic rhinitis and sinusitis) and lower airway disease (asthma) has long been of interest to physicians. Many epidemiological and pharmacological studies have provided a better understanding of pathophysiologic interrelationship between allergic rhinitis and asthma. The vast majority of patients with asthma have allergic rhinitis, and rhinitis is a major independent risk factor for asthma in cross-sectional and longitudinal studies. The association between sinusitis and asthma has long been appreciated. Through the recent evidences, allergic rhinitis, sinusitis, and asthma may not be considered as different diseases but rather as the expression in different parts of the respiratory tract of same pathological process in nature. Various mechanisms have been proposed to explain the relationship between asthma and upper airway diseases, but the underlying mechanisms are not completely discovered. The implications for the one-airway hypothesis are important not only academically but also clinically for diagnostic and therapeutic purposes.

Bioactivities and Potential Mechanisms of Action for Conjugated Fatty Acids

  • Park, Yeon-Hwa;Pariza, Michael W.
    • Food Science and Biotechnology
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    • v.18 no.3
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    • pp.586-593
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    • 2009
  • Since conjugated linoleic acid (CLA) was identified as a principal anticancer component from ground beef in the 1980s, CLA research has discovered that CLA has a wide range of biologically beneficial effects. Clinical studies with CLA are on the rise, and it is apparent that CLA may not be as effective in humans as in rodents, in particular its anti-obesity aspect. In addition, research with regard to other conjugated fatty acids as well as CLA metabolites is still in its infancy. Investigation of bioactivities for other conjugated fatty acids and CLA metabolites may help to extend the understanding of CLA and its mechanisms of actions. This may pose an opportunity to use CLA more efficiently and expand the future use of other conjugated fatty acids as pharmacological agents to assist current treatments.