• 생물정신의학
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• 제12권2호
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• pp.107-113
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• 2005

Purpose:In an attempt to predict the interpersonal differences of therapeutic response to antipsychotic drugs on pharmaco-genetic bases, this study was designed to investigate the relationship between the therapeutic response to antipsychotic drugs and Taq I A dopamine $D_2$ receptor polymorphism in schizophrenic patients. Methods:The subjects were 158 patients diagnosed with schizophrenia(DSM-IV). The therapeutic response to antipsychotic drugs was evaluated using the Treatment Response Scale(TRS) retrospectively. Patients were divided into two groups, dopamine receptor antagonist responders, and serotonin-dopamine antagonist responders. The patients' Taq I A dopamine $D_2$ receptor polymorphism was determined by polymerase chain reaction(PCR) and restriction fragment length polymorphism(RFLP). Results:The dopamine receptor antagonist responders had the A1 allele in significantly higher incidences (${\chi}^2$(1)=4.875, p=0.027, two-tailed). No significant difference was found among the serotonin-dopamine antagonist responders between those with or without the A1 allele. Conclusions:The patients with the A1 allele responded better to dopamine receptor antagonists than those with no A1 allele. Based on these results, it is suggested that the pharmacological effect of dopamine receptor antagonists can be predicted depending on the presence of the A1 allele in schizophrenic patients.

• 대한한의학방제학회지
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• 제12권2호
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• pp.77-93
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• 2004

Depression is a sort of mental disorder which is very common. To treat depression, many drugs such as TCA, MAOI are developed and used. But they have a lot of side effects, so it needs to develop drugs without side effects or with less side effects. Herbal medicines have been used to treat diseases not only physical but also mental and have less side effects. therefore, it has been thoght the need to develop herbal medicine with antidepressant effect. The purpose of this study was to reseach antidepressant effect and influence on monoamines of chunwangboshimdan thought to have antidepressant according to ancient medical book- donguibogam- and recent reports. We used 'forced swimming test(FST)' to know antidepressant effect of chunwangboshimdan and HPLC to check the influence on monoamines and their metabolites(norepinephrine, dopamine, DOPAC, HVA, serotonin, 5-HIAA) of chunwangboshimdan after divided into cerebral cortex, striatum, hypothalamus and hippocampus. The results were obtained as follows: In the study of antidepressant effect by 'forced swimming test(FST)'method, chunwang boshimdan had a significant antidepressant effect. In the study of influence on monoamines by HPLC, chunwangboshimdan mainly increased dopamine among monoamines and their metabolites(norepinephrine, dopamine, DOPAC, HVA, serotonin, 5-HIAA) significantly in 4 parts of rat's brain above-mentioned. Calculated by turnover ratio formulae of monoamine, chunwangboshimdan has more results than Imipramine. These results suggest that chunwangboshimdan has antidepressant effect that is related with the increase of monoamines by suppressing their metabolism as its mechanism.

• 대한한의학방제학회지
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• 제11권2호
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• pp.185-196
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• 2003

Depression is very common mental disorder, so many people suffer from it, which makes the treatment of depression important. Many drugs to treat depression were developed and being prescripted. But they have a lot of side effects, so it needs to develop drugs without side effects or with less side effects. Herbal medicines have been used to treat not only physical disorder but also mental disorder and it has been reported that they have less side effects. Therefore, there is the need to discover and use herbal medicine with antidepressant effect. The purpose of this study was to reseach Antidepressant effect of Licium chinense Mill. and its influence on serotonin and its metabolite of depression model rats. We used 'forced swimming test(FST)' to know antidepressant effect of Licium chinense Mill. and HPLC to check the influence on serotonin and its metabolite(5-HIAA) of Licium chinense Mill. after rats' brains were divided into cerebral cortex, striatum, hypothalamus and hippocampus. The results were obtained as follows : In the study of antidepressant effect by 'forced swimming test(FST)' method, Licium chinense Mill. had a significant antidepressant effect. In the study of influence on serotonin and 5-HIAA by HPLC, Licium chinense Mill. mainly increased serotonin and 5-HlAA of cerebral cortex and striatum signigficantly among 4 parts of rat's brain above-mentioned. These results suggest that Licium chinense Mill. has antidepressant effect that may be related with the increase of serotonin and its metabolite as its mechanism, but more precise experiments will be need to prove their relation.

• 대한약리학회지
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• 제30권1호
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• pp.137-143
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• 1994

본 연구는 7종의 비스테로이드성 항염증제가 FMLP에 의한 사람 중성구의 이동에 미치는 영향을 약물의 농도별로 관찰하고자, Hypaque-Ficoll step gradient centrifugation방법에 의하여 중성구를 분리하고, 48-well micro chemotaxis assembly를 이용하여 chemotactic assay를 시행하여 다음과 같은 결과를 얻었다. Oxyphenbutazone, phenylbutazone, zomepirac, ibuprofen은 약물의 치료 농도하에서 중성구의 이동에 대한 강력한 억제작용을 나타내었으며, indomethacin은 중성구의 이동을 오히려 증가시키는 작용을 나타내었다. 이 약제들은 모두 100uM미만의 약물 농도에서 각각 IC50를 나타내었으며, oxyphenbutazone, phenylbutazone은 10uM에서 최대 억제효과를 나타내었고, zomepirac, ibuprofen은 각각 0.luM과 100uM에서 가장 강한 억제 작용을 나타내었다. 또한 상기 약제를 FMLP와 함께 하단 구획에 첨가하였을 때에는 세포와 함께 상단구획에 첨가하였을 때와는 상이하게 세포의 이동에 전혀 영향을 미치지 못하였다. 이러한 결과는 이 약제가 FMLP와의 분자적 상호 작용을 통하여 FMLP의 작용을 저하시키는 것보다는 세포에 직접적인 영향을 미침으로서 세포의 이동을 억제하였음을 나타내어 준다. 이상의 연구 결과에서, oxyphenbutazone등의 약제가 100uM미만의 저농도에서 FMLP에 의한 중성구의 이동을 강력하게 억제하는 작용이 있음을 보고, 이 작용은 지금까지 비스테로이드성 함염증제의 작용 기전으로 말려진 cyclooxygenage 억제 작용과는 별개의 기전으로 사료되므로, 이를 상기 약제가 세포 수준에서 나타내는 제 2의 약리 기전으로 제시한다.denosine의 효과를 길항함을 볼 수 있었으나 $K{^+}$-통로 차단제인 glibenclamide는 adenosine의 효과에 영향을 미치지 못하였다. 8-Bromo-cAMP (100과 $300{\mu}M$) 그 자체로는 ACh 유리에 별다른 영향을 미치치 못하였으나 $300\;{\mu}M$ 8-bromo-cAMP 전처리에 의하여 $30\;{\mu}M\;adenosine$의 효과가 억제됨을 볼 수 있었다. 이상의 실험결과로 흰쥐 해마에서 $A_1-adenosine$ 수용체를 통한 adenosine의 ACh유리 감소는 G-단백에 의존적이며, 이러한 효과에 nifedipine에 예민한 $Ca^{++}$-통로와 adenylate cyclase계가 일부 관여함은 확실하나 proteinkinase C 및 glibenclamide에 예민한 $K{^+}$통로는 관여하지 않는 것으로 사료된다.(新稱), Phellinus pomaceus), 회주름구멍버섯(신칭(新稱), Antrodia crassa), 층주름구멍버섯(신칭(新稱), Antrodia serialis), 흰그물구멍버섯(신칭(新稱), Ceriporia reticulata), 겹친손등버섯(신칭(新稱), Oligoporus balsameus), 점박이손등버섯(신칭(新稱), Oligoporus guttulatus), 무른흰살버섯(신칭(新稱), Oxyporus cuneatus), 각목버섯(신칭(新稱), Rigidoporus microporus), 및 주름옷솔버섯(신칭(新稱), Trichaptum laricinum)으로서 우리말 이름과 영문 기재(記載)와 함께 우리나라의 균류목록(菌類目錄)에 새로이 추가되었다. 이였으며, White+NAA

• The Korean Journal of Physiology and Pharmacology
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• 제28권3호
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• pp.229-237
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• 2024

Cough is a common symptom of several respiratory diseases. However, frequent coughing from acute to chronic often causes great pain to patients. It may turn into cough variant asthma, which seriously affects people's quality of life. For cough treatment, it is dominated by over-the-counter antitussive drugs, such as asmeton, but most currently available antitussive drugs have serious side effects. Thus, there is a great need for the development of new drugs with potent cough suppressant. BALB/c mice were used to construct mice model with cough to investigate the pharmacological effects of pectolinarigenin (PEC). Hematoxylin-eosin and Masson staining were used to assess lung injury and airway remodeling, and ELISA was used to assess the level of inflammatory factor release. In addition, inflammatory cell counts were measured to assess airway inflammation. Airway hyperresponsiveness assay was used to assess respiratory resistance in mice. Finally, we used Western blotting to explore the potential mechanisms of PEC. We found that PEC could alleviate lung tissue injury and reduce the release of inflammatory factors, inhibit of cough frequency and airway wall collagen deposition in mice model with cough. Meanwhile, PEC inhibited the Ras/ERK/c-Fos pathway to exhibit antitussive effect. Therefore, PEC may be a potential drug for cough suppression.

• Journal of Acupuncture Research
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• 제18권1호
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• pp.129-145
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• 2001

Objectives : To characterize the antitumorigenic potential of three representative bee venom components, Melittin, Apamin, and Phospholipase A2, their effects on cell proliferation and apotosis of the human melanoma cell line SK-MEL-2 were analyzed using molecular biological approaches. Methodes & Results : To determine the doses of the drugs that do not induce cytotoxic damage to this cell line, cell viability was examined by MTT assay. While SK-MEL-2 cells treated with 0.5 - 2.0㎍/㎖ of each drug showed no recognizable cytotoxic effect, marked reductions of cell viability were detected at concentrations over 5.0㎍/㎖. [3H]thymidine incorporation assay for cell proliferation demonstrated that DNA replication of SK-MEL-2 cells is inhibited by Apamin and Phospholipase A2 in a dose-dependent manner. Consistent with this result, the cells were accumulated at the G1 phase of the cell cycle after treatment with Apamin and Phospholipase A2, whereas no detectable change in cell proliferation was identified by Melittin treatment. In addition, tryphan blue exclusion and flow cytometric analyses showed that all of these drugs can trigger apoptotic cell death of SK-MEL-2, suggesting that Melittin, Apamin, and Phospholipase A2 have antitumorigenic potential through the suppression of cell growth and/or induction of apoptosis. Qantitative RT-PCR analysis revealed that Apamin and Phospholipase A2 inhibit expression of growth-promoting genes such as c-Jun, c-Fos, and Cyciin D1. Furthermore, Phospholipase A2 induced tumor suppressors p53 and p21/Wafl. In addition, all three drugs were found to activate expression of a representative apoptosis-inducing gene Bax while expression of apoptosis-suppressing Bcl-2 and Bcl-XL genes was not changed. Taken together, this study strongly suggests that Metittin, Apamin, and Phosphalipase A2 may have antitumorigenic activities, which are associated with its growth-inhibiting and/or apoptosis-inducing potentials.

• Archives of Pharmacal Research
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• 제26권11호
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• pp.892-897
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• 2003

Anticancer drugs have serious side effects arising from their poor malignant cells selectivity, Since insulin receptors highly express on the cytomembrane of some kind of tumor cells, using insulin as the vector was expected to reduce serious side effects of the drugs. The objective of this study was to evaluate the tumor targeting effect of the newly synthesized mitoxantrone-insulin conjugate (MIT-INS) with the drug loading of 11.68%. In vitro stability trials showed MIT-INS were stable in buffers with different pH (2-8) at $37^{\circ}C$ within 120 h (less than 3% of free MIT released), and were also stable in mouse plasma within 48 h (less than 1 % of free MIT released). In vivo study on tumor-bearing mice showed that, compared with MIT [75.92 $\mu g \cdot$ h/g of the area under the concentration-time curve (AUC) and 86.85 h of mean residence time (MRT)], the conjugates had better tumor-targeting efficiency with enhanced tumor AUC of 126.53 1l9 h/g and MTR of 151.95 h. The conjugate had much lower toxicity to most other tissues with targeting indexes ($TI^c$) no larger than 0.3 besides good tumor targeting efficiency with $TI^c$ of 1.67. The results suggest the feasibility to promote the curative effect in ca.ncer chemotherapy by using insulin as the vector of anti-cancer drugs.

• Journal of Korean Neurosurgical Society
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• 제64권2호
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• pp.207-216
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• 2021

Objective : Rapid dissolution of blood clots reduces vasospasm and hydrocephalus after subarachnoid hemorrhage (SAH), and locally administered fibrinolytic drugs (LAFDs) could facilitate the dissolution. However, the efficacy of LAFDs remains controversial. The aim of this meta-analysis was to determine the efficacy of LAFDs for vasospasm and hydrocephalus and in clinical outcomes. Methods : From PubMed, EMBASE, and Cochrane database, data were extracted by two authors. Meta-analysis was performed using a random effect model. Inclusion criteria were patients who had LAFDs with urokinase-type or recombinant tissue-plasminogen activator after SAH in comparison with medically untreated patients with fibrinolytic drugs. We only included randomized controlled trials (RCTs) in this analysis. The outcomes of interest were vasospasm, hydrocephalus, mortality, and 90-day unfavorable functional outcome. Results : Data from eight RCTs with 550 patients were included. Pooled-analysis revealed that the LAFDs were significantly associated with lower rates of vasospasm (LAFDs group vs. control group, 26.5% vs. 39.2%; odds ratio [OR], 0.48; 95% confidence interval [CI], 0.32-0.73); hydrocephalus (LAFDs group vs. control group, 26.0% vs. 31.6%; OR, 0.54; 95% CI, 0.32-0.91); and mortality (LAFDs group vs. control group, 10.5% vs. 15.7%; OR, 0.58; 95% CI, 0.34-0.99). The proportion of 90-day unfavorable outcomes was lower in the LAFDs group (LAFDs group vs. control group, 32.7% vs. 43.5%; OR, 0.55; 95% CI, 0.37-0.80). Conclusion : This meta-analysis with eight RCTs indicated that LAFDs were significantly associated with lower rates of vasospasm and hydrocephalus after SAH. Thus, LAFDs could consequently reduce mortality and improve clinical outcome after SAH.

• 약학회지
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• 제49권2호
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• pp.140-146
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• 2005

Candida albicans, a polymorphic fungus, causes systemic and local infections. Recent reports show that the fungus is a main etiological agent for the arthritis. For trea tment, antifungal drugs and/or rheumatoid drugs are used, but resistance and side effects limit application of the drugs. In search of new sources for treatment of the fungal arthritis, we choose Egb 761 (extract of Ginkgo leaves 761), one of the most popular over-the-counter herbal medicines. The Egb 761 contains two major ingredients such as terpene and flavonoid. In the present study, we examined if the terpene portion of Egb 761 had anti-inflammatory activity against C.albicans-caused arthritis. The terpene was extracted with combination of methanol and water from the Egb 761, followed by gel-permeation chromatography. Presence of terpene was determined by the Salkowski colorimetric method and HPLC analysis. For an animal model of inflammation induction, mice were given an emulsion form of C.albicans cell wall mixed with Complete Freund's Adjuvant (CFA) by footpad-injection. Results showed that intraperitoneal administration of the water-soluble portion that contained terpene and flavonoid reduced the inflammation. Whereas the terpene had anti-inflammatory activity, flavonoid portion had no such activity, For determination of possible mechanism of the activity, the terpene seemed to be suppression of nitric oxide (NO) production from LPS-treated macrophages. Taken together the Ginkgo terpene may have anti-inflammatory effect against C.albicans-caused arthritis, possibly by blocking NO production.

• 대한임상전기생리학회지
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• 제4권1호
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• pp.63-83
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• 2006

This study conducted the following experiment to examine anesthetic effects of 500 kHz ultrasound with lidocaine. Clinical experiment was conducted to compare local anesthetic effects by ultrasound frequencies and drugs with 40 normal adults and it divided subjects into experimental group (I) applying only ultrasound, ointment group (II) applying only lidocaine, phonophoresis group of 1 MHz (III), phonophoresis group of 500 kHz lidocaine (IV) for pain threshold and nerve conduct experiments. Mechanical threshold was measured with von Frey monofilament, thermal pain threshold with halogen lamp and digital thermometer, action potential in median nerve with diagnostic electromyography before and after treatment, and at 30 min., 60 min., 90 min., and 120 min. after treatment. Results of this study can be summarized as follows. Topical anesthesia experiment showed that pain threshold of phonophoresis groups was significantly increased, but there were little differences in ultrasound frequency and drugs among phonophoresis groups. Conduction anesthesia experiment showed that phonophoresis group of 500 kHz using lidocaine had significant difference in pain threshold and sensory nerve conduction compared to ointment group and ultrasound group, but there was no great difference from other phonophresis groups and light nerve block effect was found. It was considered that application of 500 kHz ultrasound using lidocaine will be more effective in deep anesthesia or nerve block than 1 MHz ultrasound. However, researches considering various frequencies, intensities and application hours in low frequency areas including kHz ultrasound are needed to increase deep permeation of drugs.