• 대한약학회:학술대회논문집
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• 대한약학회 2001년도 Proceedings of International Convention of the Pharmaceutical Society of Korea
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• pp.269.1-269.1
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• 2001

• Natural Product Sciences
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• 제17권1호
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• pp.33-37
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• 2011

The plant species reported here are used by traditional healers in Gabon for different ailments such as wounds, malaria, fever, gonorrhea or diarrhea. The aim of this study was to evaluate the antimicrobial activities of 7 plants (Strombosiopsis tetrandra, Tetraberlinia bifoliolata, Dichapetalum barbatum, Guibourtia demeusii, Dacryodes normandii, Manniophytum fulvum, Paropsia grewoides) against different strains of both Methicillin-Resistant Staphylococcus aureus (MRSA) and Salmonella. Disc diffusion was first used to determine the antimicrobial effectiveness of the plants' ethanolic extracts. Then the minimum inhibitory concentrations of the crude extracts of either leaves or stem barks of the 7 plants were determined using broth micro-dilution. The ethanolic plant extracts showed very good activity against both MRSA and Salmonella strains where the MICs ranged from $250\;{\mu}g/ml$ to $1000\;{\mu}g/ml$. The study shows that many of the tested plants used by Gabonese traditional healers have antimicrobial activities and give support to their traditional use.

• Journal of Microbiology and Biotechnology
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• 제18권11호
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• pp.1848-1852
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• 2008

Salmonella remains a primary cause of food poisoning worldwide, and massive outbreaks have been witnessed in recent years. Therefore, this study investigated the antimicrobial activity of methyl gallate (MG), which exhibited good antibacterial activity ($MIC=3.9-125{\mu}g/ml$) against all the bacterial strains tested. In a checkerboard dilution test, MG markedly lowered the MICs of ciprofloxacin (CPFX) against Salmonella. The combined activity of CPFX and MG against Salmonella resulted in fractional inhibitory concentrations (FICs) ranging from 0.0037 to 0.015 and from 0.24 to $7.8{\mu}g/ml$, respectively. Meanwhile, the FIC index ranged from 0.31-0.37, indicating a marked synergistic relationship between CPFX and MG against Salmonella. Time-kill assays also showed a decrease in the CFU/ml between the combination and the more active compound. Therefore, this study demonstrated that MG and CPFX can act synergistically in inhibiting Salmonella in vitro.

• The Korean Journal of Physiology and Pharmacology
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• 제7권2호
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• pp.85-89
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• 2003

The basic mechanism for the excitation of the peripheral vestibular receptors following acute hypotension induced by sodium nitroprusside (SNP) or hemorrhage was investigated in anesthetized rats. Electrical activity of the afferent vestibular nerve was measured after pretreatment with kynurenic acid, an NMDA receptor antagonist. The activity of the vestibular nerve at rest following acute hypotension induced by SNP or simulating hemorrhage was a greater increase than in control animals. The gain of the vestibular nerve with sinusoidal rotation following acute hypotension increased significantly compared to control animals. The acute hypotension induced by SNP or hemorrhage did not change the activity of the afferent vestibular nerve after kynurenic acid injection. These results suggest that acute hypotension produced excitation of the vestibular hair cells via glutamate excitotoxicity in response to ischemia.

• Annals of Clinical Neurophysiology
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• 제7권1호
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• pp.52-54
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• 2005

Tuberculous radiculomyelitis (TBRM) is a complication of tuberculous meningitis (TBM), which has been reported rarely in the modern medical literature. We describe a case of TBRM, which developed during the treatment of TBM. A 28-year-old man suddenly developed lower back pain, flaccid paraparesis, urinary incontinence, while the TBM was improving with the treatment at 9th day after admission. Spinal MRI revealed leptomeningeal enhancement along with thoracolumbar spinal canal, thickening of nerve roots, spinal meninges and intramedullary high signal lesion in T2 level.

• 동의생리병리학회지
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• 제24권2호
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• pp.290-295
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• 2010

Gamigunggui-tang (GMGGT) is one of the important prescriptions that has been used in oriental medicine. We investigated the inhibitory effect of an oral administration of hot water extract of GMGGT on the development of atopic dermatitis (AD) by using Balb/c mice. The induction of atopic dermatitis-like lesion was conducted by the removal of the back hairs and topical application of 2,4-Dinitrochlorobenzene (DNCB) on to the back skin repeatedly. GMGGT was orally administered at a different dose (10.0 mg/kg, 50.0 mg/kg). Skin reactions, consisting of increased ear thickness and the presence of ear inflammation, were observed in mice over three weeks. Oral administration of GMGGT significantly suppressed the skin lesions, ear swelling, spleen weight, total serum IgE in a concentration dependent manner, and also inhibited the infiltration of mast cells in the dorsal skin. In the present study, these results suggested that GMGGT extract inhibits inflammatory response atopic dermatitis. Therefore, GMGGT may be effective substances for the management of AD in human.

• 한국당과학회:학술대회논문집
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• 한국당과학회 2006년도 제1회 연례학술대회
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• pp.49-50
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• 2006

• 대한본초학회지
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• 제32권2호
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• pp.87-95
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• 2017

Objectives : Infectious diseases by Methicillin-Resistant Staphylococcus aureus (MRSA) are a growing problem worldwide. Characteristic of MRSA is endlessly mutation to resist antibiotics. Daehwanggo (DHG) is one of the oriental medicine prescriptions contained in Principles and Practice of Eastern Medicine. Daehwanggo was mainly used for external preparation from old times. The purpose of this study is to confirm possibility as supplementary drug of DHG about antibiotics through observation of synergy effect between DHG and commercial antibiotics and to observe restriction on growth of MRSA on any pathway through observation of mechanism. Methods : The minimum inhibitory concentration (MIC) of DHG against MRSA is $500{\sim}2000{\mu}g/m{\ell}$ by broth dilution method. In the checkerboard method, the combinations of DHG with antibiotics has partial synergistic effect or synergy effect and DHG markedly reduced the MICs of the antibiotics oxacillin (OX), gentamicin (GT) against MRSA. In the inhibition of resistance mechanism of DHG against MRSA, the expression of resistance gene and protein about ${\beta}-lactam$ antibiotic was reduced. Also, we observed the effect of DHG about cell membrane permeability against MRSA, and confirmed that DHG suppressed growth of strains by increasing cell membrane permeability. Results : Basis on the result, we speculate that DHG increase antibacterial activity of antibiotics against MRSA by changing the structure of cell wall of MRSA. Conclusions : These data suggest that Daehwanggo possesses possibility as supplementary drug about antibiotics against MRSA.

• Journal of Evidence-Based Herbal Medicine
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• 제1권2호
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• pp.35-43
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• 2008

Herbal medicines have an accurate effect on atopic dermatitis, and at the same time, they hardly have adverse reactions. However, herbal medicines are difficult to be quantitatively analyzed due to low-quality preparation and types. In addition, herbal medicines have raised many problems as they have not been standardized and their active components have not been analyzed. Patients with atopic dermatitis began to recognize the effectivity and safety of herbal medicines. Accordingly, standardization, biological analyses, animal experiments and clinical trials should be generally performed in order that herbal medicines may be recognized all over the world. A standard, which is to objectively judge the curative effect of atopic dermatitis, should be established as soon as possible. Case studies and RCTs (Randomized Controlled Trials) should be actively performed on the basis of rigid clinical trial design to the end that the curative effect of herbal medicines is recognized all the world over.

• Journal of Evidence-Based Herbal Medicine
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• 제1권2호
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• pp.27-33
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• 2008

Allergic rhinitis comes within snuffle in Chinese medicine. For generations, physicians have believed that the internal factors that cause this disease are pulmonary tuberculosis, splenic hypofunction and loss of virility, and its external factors are a cold, an uncommon atmosphere and an uncommon flavor. From the viewpoint of Chinese medicine, this symptom was fundamentally cured by "abidance by individuality, locality and seasons", on the basis of demonstration. In result, visceral function was recovered. In Chinese medicine, a disease is etiologically cured by the principles of Wholism and by discriminating among symptoms. In particular, "method for replenishing Qi and securing Exterior" has been widely used among the foregoing therapeutics. According to modern pharmacology, Astragli Radix, Atractylodis Macrocephalae Rhizoma and Ledebouriellae Radix all have antihistaminic effects and strengthen of the masticating and swallowing function of the recticuloendothelial system. This disease can be cured by controlling immunity and allergic reactions. Besides, it is necessary to take moderate exercise, to strengthen constitution, to avoid causative substances, to control ingesting flesh, meat and shrimps, to eat little, and to avoid what is cold and raw.