• Title/Summary/Keyword: pharmacological therapy

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Molecular Mechanisms of Casticin Action: an Update on its Antitumor Functions

  • Rasul, Azhar;Zhao, Bin-Ji;Liu, Jun;Liu, Bao;Sun, Jia-Xin;Li, Jiang;Li, Xiao-Meng
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.21
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    • pp.9049-9058
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    • 2014
  • Casticin (3', 5-dihydroxy-3, 4', 6, 7-tetramethoxyflavone) is an active compound isolated from roots, stems, leaves, fruits and seeds of a variety of plants. It is well known for its pharmacological properties and has been utilized as an anti-hyperprolactinemia, anti-tumor, anti-inflammatory, neuroprotetective, analgesic and immunomodulatory agent. Recently, the anticancer activity of casticin has been extensively investigated. The resulkts showed that it exerts protective potential by targeting apoptosis, considered important for cancer therapies. In this article, our aim was to review the pharmacological and therapeutic applications of casticin with specific emphasis on its anticancer functions and related molecular mechanisms. Chemotherapeutic effects are dependent on multiple molecular pathways, which may provide a new perspective of casticin as a candidate anti-neoplastic drug. This review suggests that additional studies and preclinical trials are required to determine specific intracellular sites of action and derivative targets in order to fully understand the mechanisms of its antitumor activity and validate this compound as a medicinal agent for the prevention and treatment of various cancers.

Pharmacological Action of Panax Ginseng on the Behavioral Toxicities Induced by Psychotropic Agents

  • Kim Hyoung-Chun;Shin Eun-Joo;Jang Choon-Gon;Lee Myung-Koo;Eun Jae-Soon;Hong Jin-Tae;Oh Ki-Wan
    • Archives of Pharmacal Research
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    • v.28 no.9
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    • pp.995-1001
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    • 2005
  • Morphine-induced analgesia has been shown to be antagonized by ginseng total saponins (GTS), which also inhibit the development of analgesic tolerance to and physical dependence on morphine. GTS is involved in both of these processes by inhibiting morphine-6-dehydrogenase, which catalyzes the synthesis of morphinone from morphine, and by increasing the level of hepatic glutathione, which participates in the toxicity response. Thus, the dual actions of ginseng are associated with the detoxification of morphine. In addition, the inhibitory or facilitated effects of GTS on electrically evoked contractions in guinea pig ileum (I-L-receptors) and mouse vas deferens $(\delta-receptors)$ are not mediated through opioid receptors, suggesting the involvement of non-opioid mechanisms. GTS also attenuates hyperactivity, reverse tolerance (behavioral sensitization), and conditioned place preference induced by psychotropic agents, such as methamphetamine, cocaine, and morphine. These effects of GTS may be attributed to complex pharmacological actions between dopamine receptors and a serotonergic/adenosine $A_{2A}1\delta-opioid$ receptor complex. Ginsenosides also attenuate the morphine-induced cAMP signaling pathway. Together, the results suggest that GTS may be useful in the prevention and therapy of the behavioral side effects induced by psychotropic agents.

Indacaterol Inhibits Tumor Cell Invasiveness and MMP-9 Expression by Suppressing IKK/NF-κB Activation

  • Lee, Su Ui;Ahn, Kyung-Seop;Sung, Min Hee;Park, Ji-Won;Ryu, Hyung Won;Lee, Hyun-Jun;Hong, Sung-Tae;Oh, Sei-Ryang
    • Molecules and Cells
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    • v.37 no.8
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    • pp.585-591
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    • 2014
  • The ${\beta}_2$ adrenergic receptor (ADRB2) is a G protein-coupled transmembrane receptor expressed in the human respiratory tract and widely recognized as a pharmacological target for treatments of asthma and chronic obstructive pulmonary disorder (COPD). Although a number of ADRB2 agonists have been developed for use in asthma therapy, indacaterol is the only ultra-long-acting inhaled ${\beta}_2$-agonist (LABA) approved by the FDA for relieving the symptoms in COPD patients. The precise molecular mechanism underlying the pharmacological effect of indacaterol, however, remains unclear. Here, we show that ${\beta}$-arrestin-2 mediates the internalization of ADRB2 following indacaterol treatment. Moreover, we demonstrate that indacaterol significantly inhibits tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$)-induced NF-${\kappa}B$ activity by reducing levels of both phosphorylated-IKK and -$I{\kappa}B{\alpha}$, thereby decreasing NF-${\kappa}B$ nuclear translocation and the expression of MMP-9, an NF-${\kappa}B$ target gene. Subsequently, we show that indacaterol significantly inhibits TNF-${\alpha}$/NF-${\kappa}B$-induced cell invasiveness and migration in a human cancer cell line. In conclusion, we propose that indacaterol may inhibit NF-${\kappa}B$ activity in a ${\beta}$-arrestin2-dependent manner, preventing further lung damage and improving lung function in COPD patients.

A review on pharmacological properties of Bangpungtongsung-san in obesity - Focused on Japanese researches - (방풍통성산의 비만에 대한 약리학적 고찰 - 일본의 연구를 중심으로 -)

  • Park, Sang-Ah;Bang, Keuk-Soo;Chang, Young-Nam;Lee, Jeong-Ho;Lee, Jong-Hyun;Jin, Jong-Sik
    • Herbal Formula Science
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    • v.22 no.2
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    • pp.25-34
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    • 2014
  • Objectives : Excessive nutrition intake and lack of physical activity induce obesity through accumulation of fat in human body. The obesity have been categorized as a disease and known to cause several chronic diseases and cancers. In Japan, Bangpungtongsung-san has been applied as one of the therapies of the obesity and it's pharmacological uses have been studied for a long time. The purpose of this study is reviewing researches of Bangpungtongsung-san related to the obesity. Methods : By searching with the keyword of "Bangpungtongsung-san" or related words such as "Bofutsushosan" and 'TJ-62" from PubMed and off-line libraries, many reports were gathered and reviewed from the perspective of the obesity. Results and Conclusions : It has become evident by reviewing the reports that Bangpungtongsung-san is useful as a therapy of the obesity though some case reports showed side effects. Also, the mechanisms of Bangpungtongsung-san on obesity were reviewed and suggested.

Clinical and autonomic characteristics in patients with postural tachycardia syndrome (기립빈맥증후군 환자의 임상적 및 자율신경 특성)

  • Kim, Duk Ju;Kang, Sa-Yoon;Kim, Joong Goo
    • Journal of Medicine and Life Science
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    • v.16 no.3
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    • pp.96-100
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    • 2019
  • Postural tachycardia syndrome (POTS) is common, although not so well-known variant of cardiovascular autonomic disorder characterized by an excessive heart rate increase on standing. POTS is probably underdiagnosed due to the heterogeneity in both presentation and etiology. This study aimed to evaluate the clinical and autonomic features in patients with POTS. We reviewed the medical records of patients with POTS. Medical records include onset age, sex, presenting symptoms, body mass index (BMI) and prognosis. All patients had an autonomic function and laboratory tests. Ninety-nine patients met the inclusion criteria for POTS (51.5% male; mean±SD age, 20.0±9.7 years; mean±SD, BMI 21.9±3.9). Common presenting symptoms were a brief loss of consciousness, dizziness, blurred vision and headache. Autonomic function tests showed abnormal quantitative sudomotor axon reflex testing in 20 patients of 99 POTS patients. The abnormal post-ganglionic sympathetic sudomotor function is generally considered to reflect a neuropathic form of POTS. In treatments, 83 patients were treated by non-pharmacological management including lifestyle changes and 16 patients required the initiation of pharmacological therapies. Most patients with POTS showed a relatively favorable prognosis. POTS is a chronic disease with a substantial subset of patients recovering within a few years after the initial presentation. Future efforts should focus on better understanding of POTS pathophysiology and designing randomized controlled trials for the selection of more effective therapy.

Survey on the Treatment of Postherpetic Neuralgia in Korea: Multicenter Study of 1,414 Patients

  • Nahm, Francis Sahngun;Kim, Sang Hun;Kim, Hong Soon;Shin, Jin Woo;Yoo, Sie Hyeon;Yoon, Myung Ha;Lee, Doo Ik;Lee, Youn Woo;Lee, Jun Hak;Jeon, Young Hoon;Jo, Dae Hyun
    • The Korean Journal of Pain
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    • v.26 no.1
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    • pp.21-26
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    • 2013
  • Background: Postherpetic neuralgia (PHN) is a serious complication resulting from herpes zoster infections, and it can impair the quality of life. In order to relieve pain from PHN, various treatments, including pharmacological and interventional methods have been used. However, little information on the recommendations for the interventional treatment of PHN, along with a lack of nation-wide surveys on the current status of PHN treatment exists. This multicenter study is the first survey on the treatment status of PHN in Korea. Methods: Retrospective chart reviews were conducted on the entire patients who visited the pain clinics of 11 teaching hospitals from January to December of 2011. Co-morbid disease, affected site of PHN, routes to pain clinic visits, parenteral/topical medications for treatment, drugs used for nerve block, types and frequency of nerve blocks were investigated. Results: A total of 1,414 patients' medical records were reviewed. The most commonly affected site was the thoracic area. The anticonvulsants and interlaminar epidural blocks were the most frequently used pharmacological and interventional methods for PHN treatment. For the interval of epidural block, intervals of 5 or more-weeks were the most popular. The proportion of PHN patients who get information from the mass media or the internet was only 0.8%.The incidence of suspected zoster sine herpete was only 0.1%. Conclusions: The treatment methods for PHN vary among hospitals. The establishment of treatment recommendation for PHN treatment is necessary. In addition, public relations activities are required in order to inform the patients of PHN treatments by pain clinicians.

Deinococcus radiodurans R1 Lysate Induces Tolerogenic Maturation in Lipopolysaccharide-Stimulated Dendritic Cells and Protects Dextran Sulfate Sodium-Induced Colitis in Mice

  • Song, Ha-Yeon;Han, Jeong Moo;Kim, Woo Sik;Lee, Ji Hee;Park, Woo Yong;Byun, Eui-Baek;Byun, Eui-Hong
    • Journal of Microbiology and Biotechnology
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    • v.32 no.7
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    • pp.835-843
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    • 2022
  • Deinococcus radiodurans is an extremophilic bacterium that can thrive in harsh environments. This property can be attributed to its unique metabolites that possess strong antioxidants and other pharmacological properties. To determine the potential of D. radiodurans R1 lysate (DeinoLys) as a pharmacological candidate for inflammatory bowel disease (IBD), we investigated the antiinflammatory activity of DeinoLys in bone marrow-derived dendritic cells (BMDCs) and a colitis mice model. Lipopolysaccharide (LPS)-stimulated BMDCs treated with DeinoLys exhibited alterations in their phenotypic and functional properties by changing into tolerogenic DCs, including strongly inhibited proinflammatory cytokines (TNF-α and IL-12p70) and surface molecule expression and activated DC-induced T cell proliferation/activation with high IL-10 production. These phenotypic and functional changes in BMDCs induced by DeinoLys in the presence of LPS were abrogated by IL-10 neutralization. Furthermore, oral administration of DeinoLys significantly reduced clinical symptoms against dextran sulfate sodium-induced colitis, including body weight loss, disease activity index, histological severity in colon tissue, and lower myeloperoxidase level in mice. Our results establish DeinoLys as a potential anti-inflammatory candidate for IBD therapy.

Trends in Protein Engineering for Gene Targeting: Homing Endonucleases and Zinc Finger Nucleases (유전자 표적화를 위한 단백질공학 연구동향: Homing Endonucleases and Zinc Finger Nucleases)

  • Cheong, Dea-Eun;Kim, Geun-Joong
    • KSBB Journal
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    • v.25 no.3
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    • pp.215-222
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    • 2010
  • Monogenic diseases are resulted from modifications in a single gene of human cells. Because their treatment with pharmacological medicine have a temporary effect, continuous nursing care and retreatment are required. Gene therapy, gene targeting and induced pluripotent stem cell (iPSC) are considered permanent treatment methods of them. In gene therapy, however, retroviral vectors that have potential toxicity caused by random insertion of harmful virus are used as vehicles for transferring genetic materials. On the other hand, gene targeting could replace and remove the modified gene though homologous recombination (HR) induced by site-specific endonucleases. This short review provides a brief overview on the recently tailored endonucleses with high selectivity for HR.

Intracoronary Radiation Therapy (관동맥혈관 내 방사선 근접 치료)

  • Moon, Dae-Hyuk;Park, Seong-Wook;Hong, Myeong-Ki;Oh, Seung-Jun;Bom, Hee-Seung;Lee, Hee-Kyung
    • 대한핵의학회:학술대회논문집
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    • 2001.05a
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    • pp.24-34
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    • 2001
  • Restenosis remains a major limitation of percutaneous coronary interventions. Numerous studios including pharmacological approaches and new devices failed to reduce the restenosis rate except coronary stenting. Since the results of $BENESTENT^{1)}\;and\;STRESS^{2)}$ studies came out, coronary stenting has been the most popular interventional strategy in the various kinds of coronary stenotic lesions, although the efficacy of stenting was shown only in the discrete lesion of the large coronary artery. The widespread use of coronary stenting has improved the early and late outcomes after coronary intervention, but it has also led to a new and serious problem, e.g., in-stent restenosis. Intravascular radiation for prevention of restenosis is a new technology in the field of percutaneous coronary intervention. Recent animal experiments and human trials have demonstrated that local irradiation, in conjunction with coronary interventions, substantially diminished the rate of restenosis. This paper reviews basic radiation biology of intracoronary radiation and its role in the inhibition of restenosis. The current status of intracoronary radiation therapy using Re-188 liquid balloon is also discussed.

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The various mechanisms of Korean traditional medicines for anti-cancer (한약의 다양한 항암기전)

  • Park, Yeong-Chul;Park, Yong-Ki;Lee, Sun-Dong
    • The Korea Journal of Herbology
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    • v.27 no.3
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    • pp.39-55
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    • 2012
  • Objectives : Recently there have been encouraging results, from a western perspective, in the cancer research field regarding the anticancer effects of herbal medicine. This paper was aimed to review herbal medicine playing its anticancer role in terms of apoptosis, inflammation control, differentiation and telomerase. Methods : New studies for tang, medicinal herb itself or effective ingradients of medicinal herb showing anti-cancer effectiveness were reviewed and summarized in terms of pharmacological action. Results : Ethanol extracts of $Spatholobus$ $suberectus$ greatly inhibited cancer cell growth inducing cell apoptosis and cytotoxic effects. $Scutellaria$ $baicalensis$ may be responsible for its anticancer activity showing inhibition of $PGE_2$ synthesis via suppression of COX-2 expression. Saikosaponins isolated from $Bupleurum$ induced the differentiation of C6 glioma cells, cancer cells, into astrocytes, normal cells. Acetone extract of $Bupleurum$ $scorzonerifolium$ inhibited proliferation of human lung cancer cells via inducing apoptosis and suppressing telomerase activity. Conclusions : Herbal medicine inhibited cancer cell growth inducing cell apoptosis and cytotoxic effects. Inflammation persisting for a decade eventually elevates the risk of cancer sufficiently that it is discernible in case control epidemiological studies. Differentiation therapy is defined as a therapy to treat cancers by inducing differentiation of the stem cells. Telomerase expression is a hallmark of cancer. Nearly the complete spectrum of human tumors has been shown to be telomerase positive.