• The Korean Journal of Physiology and Pharmacology
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• 제12권4호
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• pp.131-135
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• 2008

The profile of membrane currents was investigated in differentiated neuronal cells derived from human neural stem cells (hNSCs) that were obtained from aborted fetal cortex. Whole-cell voltage clamp recording revealed at least 4 different currents: a tetrodotoxin (TTX)-sensitive $Na^+$ current, a hyperpolarization-activated inward current, and A-type and delayed rectifier-type $K^+$ outward currents. Both types of $K^+$ outward currents were blocked by either 5 mM tetraethylammonium (TEA) or 5 mM 4-aminopyridine (4-AP). The hyperpolarization-activated current resembled the classical $K^+$ inward current in that it exhibited a voltage-dependent block in the presence of external $Ba^{2+}$ (30 ${\mu}$M) or $Cs^+$ (3${\mu}$M). However, the reversal potentials did not match well with the predicted $K^+$ equilibrium potentials, suggesting that it was not a classical $K^+$ inward rectifier current. The other $Na^+$ inward current resembled the classical $Na^+$ current observed in pharmacological studies. The expression of these channels may contribute to generation and repolarization of action potential and might be regarded as functional markers for hNSCs-derived neurons.

• Journal of Oral Medicine and Pain
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• 제37권4호
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• pp.189-193
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• 2012

구강내의 다발성 색소침착은 애디슨증후군, 포이츠-예거 증후군과 같은 선천성질환에 의하여 유발되거나, 악성 흑색종, 흑색극세포종, 신경섬유종증과 같은 국소적인 질환, 흡연, 만성 외상, 약물 복용 등에 의해서 유발될 수 있다. 이러한 질환 중 악성흑색종과 같은 질환은 생명을 위협할 수 있는 질환이므로 구강 내 색소 침착이 발견될 경우 정확한 진단이 필수적이다. 이러한 병소의 정확한 감별 진단을 위해서는 구강 내 색소 침착을 유발할 수 있는 원인에 대해서 숙지하고 있어야 하며, 상세한 병력 청취가 중요하다. 또한, 필요 시 혈액검사를 비롯한 이화학검사를 시행하거나 생검을 통하여 조직병리학적인 소견을 확인하고, 주기적으로 환자의 임상 소견에 대한 평가를 시행하여 변화를 확인하여야 한다. 그 동안 일반적으로 색소 침착을 유발하는 것으로 알려졌던 약물 외에, 만성 C형 간염 환자에서 페그인터페론 알파와 리바비린의 병용 요법 중 발생한 구강 내 다발성 색소 침착 증례가 있어 문헌 상에 보고되었던 만성 C형 간염 환자의 약물치료와 연관된 구강 내 색소 침착의 증례들과 함께 고찰해 보고자 한다.

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 1999년도 제38차 춘계학술대회
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• pp.205-208
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• 1999

재협착에 관여하는 인자는 매우 다양하다. 평활근 세포의 증식, ECM의 형성, 혈관벽의 초기 혈전형성, 그리고 혈관 재형성 등이 모든 것들이 재협착의 병인에 기여하고 있다. 환자마다 이런 요소들의 기여정도가 다르며 동일 환자에서도 병변에 따른 기여정도가 또한 다르리라 여긴다. 그러나 아직까지 우리는 외막섬유모세포의 역할, 내피세포의 재생, 증식세포의 계획된 죽음 등 재협착의 기전을 불완전하게 이해하고 있고 따라서 보다 완전한 이해를 통해 효과적인 재협착 예방치료가 시행될 수 있을 것이다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제10권1호
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• pp.121-133
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• 1999

치사성 긴장증은 긴장증의 한 유형이지만 극단적인 임상양상과 높은 치사율로 인하여 따로 분류하여서 하나의 증상군으로 취급되고 있다. 최근 정신 약물학의 발전과 질병 초기에 적절하고 집중적인 치료를 시행함으로써 전세계적으로 치사성 긴장증의 발생율이 현저하게 감소되었다. 본 저자들은 급성으로 발생된 고열, 자율신경계 이상, 다양한 긴장성 증상 및 긴장성 흥분과 혼미상태를 보였던 11세 남아에서의 치사성 긴장증 1례에 대한 매우 드문 경험을 소개하였다. 특히, 본 증례는 전형적인 경과에 비하여 경한 초기증상을 보인 치사성 긴장증에서 초기에 집중적인 대증요법과 정신약물 투여, 전기충격요법의 병행이 성공적인 치료 효과를 거둘 수 있음을 보여준 사례라 할 수 있다.

• 약학회지
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• 제37권5호
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• pp.442-452
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• 1993

Previous experimental and clinical investigations suggest a possible role of new nootropic drug, oxiracetam, in improving cognitive performances in patients affected by organic brain syndrome. In this study, the cognitive and behavioral effects of oxiracetam treatment in patients with clinical symptoms of organic brain syndrome were evaluated. Sixty-six patients were enrolled and assigned to either oxiracetam or placebo, according to a randomized, double-blind design between two patient-groups. Either oxiracetam or placebo was orally given bid for 8 weeks ; daily dose of oxiracetam was 1600mg. All the patients, enrolled in this study, were diagnosed as having mild to moderate cognitive dysfunction as defined by a baseline Mini Mental State ExaminationKorean version (MMSE-K) score between 14 and 25. The patients under-went, at baseline, 4 weeks and 8 weeks after, routine laboratory study (CBC, SMA12, U/A, EKG) and the following neuropsychological tests ; MMSE-K, modified Korean Wechsler Intelligence Scale(MKWIS), Nurses' Observation Scale for Geriatric patients(NOSGER). Fifteen patients of whom were dropped out or excluded from the analysis because of poor compliance or violation of the protocol. Fiftyone patients (aged 54~78 years, male 25, female 26) were analyzed (vascular dementia, 30 ; senile dementia of Alzheimer type, 9 ; mixed type, 5 ; other cause, 7). Statistical analysis of the data demonstrated that the two groups were comparable at baseline. At the end of each study period the oxiracetam group scored significantly better on the majority of the tests evaluating cognitive function, psychometricity and the improvement rating scale of subjective symptoms than placebo group, in which worsening trends or no changes were seen on the whole. No side effects were noted during oxiracetam treatment. The present study, showing positive clinical findings after oxiracetam therapy, confirmed that this drug can be useful pharmacological treatment in organic brain syndrome.

• Biomolecules & Therapeutics
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• 제18권1호
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• pp.111-121
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• 2010

In order to investigate the preliminary repeat oral dose toxicity and to determine the highest dosage for further 4-week repeated dose toxicity test, Low Molecular Weight Fucoidan (LMF) has been showed various pharmacological effects, was orally administered to female and male rats, once a day for 14 days at dose levels of 2,000, 1,000, 500 and 0 (vehicle control) mg/kg (body weights) in a volume of 10 ml/kg. The mortality and changes on the body weights, clinical signs, hematology, serum biochemistry and gross observations were monitored with organ weight and histopathology of principle organs. As the results of 14-day repeated oral treatment of LMF, no LMF treatment related mortalities were detected up to 2,000 mg/kg in both male and female rats, respectively. In addition, no noticeable changes on the body weight and clinical signs were detected except for significant decreases on the body weights and gains restricted to male 2,000 mg/kg treated groups as compared with male vehicle control. No meaningful changes on the organ weights, hematological, serum biochemistrical, gross and histopathological findings were observed. Therefore the highest dosage in the 4-week repeated dose toxicity test is suggested as 2,000 mg/kg in both female and male rats, respectively.

• Tuberculosis and Respiratory Diseases
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• 제61권2호
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• pp.167-170
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• 2006

대퇴골 전이를 동반한 비소세포폐암 환자에서 전이 부위에 대한 방사선 치료 후 시행한 항암화학요법 도중, gemcitabine으로 인한 방사선 회귀 피부, 근육염이 발생하였다. 대퇴부의 부종, 발적과 통증 등은 스테로이드 사용 후 모두 사라졌으며, gemcitabine 투여를 중지한 이후 현재까지 재발이 없었다.

• Advances in Traditional Medicine
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• 제7권5호
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• pp.540-548
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• 2008

Paeonia radix is the root of Paeonia aliflora Pallas, which is a perennial plant classified in the family Paeoniaceae. Paeonia radix possesses several pharmacological effects such as analgesic, anti-inflammatory and anti-allergic, anti-oxidative, and anti-coagulant activities. In this study, we investigated the effect of the aqueous extract of Paeonia radix on the lipopolysaccharide-induced inflammation in mouse BV2 microglial cells. The aqueous extract of Paeonia radix at respective concentration was treated one hour before lipopolysaccharide treatment. In the present results, the aqueous extract of Paeonia radix suppressed prostaglandin $E_2$ synthesis and nitric oxide production by inhibiting the lipopolysaccharide-stimulated mRNA expressions of cyclooxygenase-2 and inducible nitric oxide synthase in mouse BV2 microglial cells. These results demonstrate that Paeonia radix exerts anti-inflammatory and analgesic effects probably by suppressing mRNA expressions of cyclooxygenase-2 and inducible nitric oxide synthesis. The present study demonstrates that Paeonia radix may offer a valuable mean of therapy for brain inflammatory diseases.

• 대한약침학회지
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• 제21권3호
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• pp.203-206
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• 2018

Objectives: There is an increasing number of complex diseases that are progressively more difficult to be controlled using the conventional "single compound, single target" approach as demonstrated in our current modern drug development. TCM might be the new cornerstone of treatment alternative when the current treatment option is no longer as effective or that we have exhausted it as an option. Orthogonal stimulus-response compatibility group study is one of the most frequently employed formulas to produce optimal herbal combination for treatment of multi-syndromic diseases. This approach could solve the relatively low efficacy single drug therapy usage and chronic adverse effects caused by long terms administration of drugs that has been reported in the field of pharmacology and medicine Methods: The present review was based on the Science Direct database search for those related to the TCM and the development of antihypertensive TCM herbal combination using orthogonal stimulus-response compatibility group studies approach. Results: Recent studies have demonstrated that the orthogonal stimulus-response compatibility group study approach was most frequently used to formulate TCM herbal combination based on the TCM principles upon the selection of herbs, and the resulting formulated TCM formula exhibited desired outcomes in treating one of global concerned complex multi-syndromic diseases, the hypertension. These promising therapeutic effects were claimed to have been attributed by the holistic signaling mechanism pathways employed by the crude combination of herbs. Conclusion: The present review could serve as a guide and prove the feasibility of TCM principles to be used for future pharmacological drug research development.

• 대한임상독성학회지
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• 제16권1호
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• pp.33-41
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• 2018

Purpose: This study was conducted to evaluate the clinical efficacy of pharmacologic treatment of amatoxin poisoning patients. Methods: Literature was accessed through PubMed, EMBASE, Cochrane library, KoreaMed, KISS and KMBASE. Studies relevant to human use of pharmacologic therapy including silymarin, penicillin and N-acetylcysteine (NAC) for amanita poisoning were included. Case reports, letters, editorials and papers with insufficient information were excluded. Comparison of clinical outcomes (especially mortality and liver transplantation rate) in each study was analyzed. Results: The final analysis included 13 retrospective studies. None of these studies showed direct comparisons of individual agents. Among 12 studies comparing silymarin vs penicillin, eight showed clinical superiority of silymarin. Among eight studies comparing silymarin with NAC, six showed clinical superiority of silymarin. Among seven studies of NAC vs penicillin, five showed clinical superiority of NAC. Conclusion: This systematic review suggested that clinical superiority of various pharmacological agents used to treat amatoxin poisoning is debatable. Nevertheless, the available evidence suggests it is reasonable to consider combinations of multiple agents for patients with amanita poisoning. Further studies are required to establish a treatment regimen for amanita poisoning.