• Title/Summary/Keyword: Basic Medicine

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Antibiotic Resistance Profiles of Staphylococcus pseudintermedius Isolates from Canine Patients in Korea

  • Yoon, Jang-Won;Lee, Ki-Jong;Lee, So-Young;Chae, Min-Joo;Park, Jae-Keun;Yoo, Jong-Hyun;Park, Hee-Myung
    • Journal of Microbiology and Biotechnology
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    • v.20 no.12
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    • pp.1764-1768
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    • 2010
  • In this study, the prevalence of antibiotic resistance was examined among 74 Staphylococcus pseudintermedius strains recently isolated from clinical cases of canine pyoderma and otitis externa at the veterinary teaching hospital at Konkuk University, Korea. Bacterial resistance to the nine commonly used antibiotics was evaluated by a standard disk diffusion technique based on the guidelines of the Clinical and Laboratory Standards Institute. The results demonstrated that most S. pseudintermedius isolates were resistant to penicillin (95.9%) or tetracycline (91.9%), but highly susceptible to amoxicillin/clavulanic acid (90.5%). Among the 74 isolates, 13 mecA-positive and methicillin-resistant S. pseudintermedius (MRSP) strains were identified, displaying a high level of resistance (84.6-100%) to each of the individual antibiotics evaluated, with the exception of amoxicillin/clavulanic acid (46.2% resistance). Notably, all of the MRSP isolates exhibited simultaneous resistance to four or more different antibiotics, indicating that they are multiple drug resistant (MDR) strains. Taken together, these results imply that more careful selection or prescription of antibiotics for canine pyoderma and otitis externa should be required for reducing the emergence and/or spread of MDR strains, especially MDR-MRSP isolates, in veterinary pet clinics in Korea.

Functional roles and mechanisms of ginsenosides from Panax ginseng in atherosclerosis

  • Xue, Qianqian;He, Ningning;Wang, Zhibin;Fu, Xiuxiu;Aung, Lynn Htet Htet;Liu, Yan;Li, Min;Cho, Jae Youl;Yang, Yanyan;Yu, Tao
    • Journal of Ginseng Research
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    • v.45 no.1
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    • pp.22-31
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    • 2021
  • Atherosclerosis (AS) is a leading cause of cardiovascular diseases (CVDs) and it results in a high rate of death worldwide, with an increased prevalence with age despite advances in lifestyle management and drug therapy. Atherosclerosis is a chronic progressive inflammatory process, and it mainly presents with lipid accumulation, foam cell proliferation, inflammatory response, atherosclerotic plaque formation and rupture, thrombosis, and vascular calcification. Therefore, there is a great need for reliable therapeutic drugs or remedies to cure or alleviate atherosclerosis and reduce the societal burden. Ginsenosides are natural steroid glycosides and triterpene saponins obtained mainly from the plant ginseng. Several recent studies have reported that ginsenosides have a variety of pharmacological activities against several diseases including inflammation, cancer and cardiovascular diseases. This review focuses on describing the different pharmacological functions and underlying mechanisms of various active ginsenosides (Rb1,-Rd, -F, -Rg1, -Rg2, and -Rg3, and compound K) for atherosclerosis, which could provide useful insights for developing novel and effective anti-cardiovascular drugs.

The Growth Inhibitiory Effect of New Pyrrolo[1,2-${\alpha}$]benzimidazole Derivatives on Human Gastric Cancer Cells

  • Kim, Soo-Kie;Ahn, Chan-Mug;Choi, Sun-Ju;Park, Yoon-Sun;Cho, Hyung-Chul;Koh, Choon-Myung
    • Archives of Pharmacal Research
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    • v.20 no.5
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    • pp.410-413
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    • 1997
  • In the course of screening synthetic compounds to inhibit tumor cell growth, pyrrolo[1,2-.alpha.] benzimidazole (PBI), an intermediate of azamitosene, was found to inhibit a proliferation of gastric cancer cell lines. Despite a potential cytotoxic activity against solid tumor cells as opposed to that against rapidly-doubled leukemic cells, there has been no report on the inhibition of gastric cancer cell line by PBI and its' derivatives. The present experiment was designed to determine if PBI derivatives can effectively inhibit the cellular proliferation of gastric cancer cells by using in vitro as well as in vivo chemosensitivity system (MTT assay, clonogenic assay and human tumor xenografted assay). Of the tested PBI derivatives, PBI (18) and PBI (20), displayed the effective growth inhibition of cultured gastric cancer cells or even in the xenografted nude mouse model.

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Study on Tongseol in "Hwangjenaegyeong(黃帝內經)" ($\ll$황제내경(黄帝内经)$\gg$ "통설(洞泄)" 약탐(略探))

  • Zhu, Peng-Ju;Chen, Shi-Yu;Gu, Feng
    • Journal of Korean Medical classics
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    • v.22 no.4
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    • pp.33-37
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    • 2009
  • According to the original texts in "Hwangjenaegyeong(黃帝內經)", it's considered that the Chinese character Tong(洞) in the word of Tongseol(洞泄) should be understood as fast[疾] or rapid[速],and the main symptom of Tongseol should be diarrhea of indigested food soon after a meal. Through comparing Tongseol with Dongpung(迵風) in Historical Records, we can draw the conclusions as following. Firstly, the ancient physicians attached great importance to the role of wind in the pathogenesis of diarrhea. Secondly, perhaps the ancient physicians had these ideas of "wind is rapid" and "strong wind can bring shaken" as well as "wind is related to the liver closely" already in the early Western Han Dynasty. Thirdly, the rich materials about the relationship between wind and diarrhea in "Hwangjenaegyeong(黃帝內經)" should be considered as the successor to the excellent thinking of their predecessors.

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Comparative Ultrastructures of the Fertilized Egg Envelopes in Golden severum, Convic cichlid and Discus, Cichlidae, Teleost (경골어류 시클리드과 Golden severum, Convic cichlid 및 Discus의 수정란 난막 미세구조 비교)

  • Deung, Young-Kun;Reu, Dong-Suck;Kim, Dong-Heui
    • Applied Microscopy
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    • v.27 no.4
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    • pp.417-432
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    • 1997
  • The structures of the fertilized egg envelope in three species of cichlidae, golden severum (Cichlasoma severum var.), convic cichlid (Cichlasoma nigrofasciatum) and discus (Symphysodon aequifasciatus) were investigated by routine light and electron microscopies. The fertilized eggs of all three species were of the non-transparent, ellipsoidal, adhesive and non-floted type. The egg envelopes have a single micropyle, which is thought to the pathway of sperm in the area of the animal pole. In golden severum, an outer surface of egg envelope was covered by a reticular layer, that of convic cichlid was covered by an amorphous reticular layer and that of discus was covered by a branched reticular layer. The fertilized egg envelopes consisted of two distinct layers, an adhesive outer layer and an inner layer, consisted of lamellae alternating with interlamellae of lower electron density, in all three species; an inner layer of golden severum was $15\sim17$ layers, that of convic cichlid was $14\sim16$ layers, and that of discus was $18\sim19$ layers.

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Patent Ductus Arteriosus Occlusion with an $Amplatz^{(R)}$ Canine Duct Occluder in a Dog (개에서 $Amplatz^{(R)}$ Canine Duct Occluder를 이용한 동맥관개존증의 폐쇄 증례)

  • Kang, Min-Hee;Kim, Seung-Gon;Hahn, Tae-Yeon;Park, Hyun-Ah;Min, Sa-Hee;Park, Ji-Hwan;Kim, Tae-Woo;Park, Hee-Myung
    • Journal of Veterinary Clinics
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    • v.29 no.6
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    • pp.498-501
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    • 2012
  • A 10-month-old intact male Maltese dog (body weight, 1.6 kg) presented with intermittent cough and abnormal heart sounds. The dog was diagnosed with a left-to-right patent ductus arteriosus (PDA) on the basis of the results of transthoracic echocardiography, color flow Doppler examination, and angiography. Transcatheter occlusion of the PDA was performed using the $Amplatz^{(R)}$ Canine Duct Occluder (ACDO) via the femoral artery. The device was placed under fluoroscopic guidance and successfully occluded the PDA. The continuous heart murmur disappeared immediately after the correction and no residual flow was detected. The dog was discharged the following day and regularly examined for complications and safety. This is the first report demonstrating the clinical application of ACDO for the transcatheter closure of PDA via the femoral artery in a small-breed dog in Korea.

Changes in Anti-inflammatory Effect of Pyungwi-san Decoction According to the Preservation Temperature and Period (평위산 전탕액의 보관 온도 및 기간에 따른 항염증 효능 비교)

  • Ha, Hyekyung;Shin, In-Sik;Lim, Hye-Sun;Jeon, Woo-Young;Kim, Jung-Hoon;Seo, Chang-Seob;Shin, Hyeun-Kyoo
    • Herbal Formula Science
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    • v.20 no.2
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    • pp.29-35
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    • 2012
  • Objectives : To provide the information of preservation method for herbal decoction, we evaluated the anti-inflammatory effects according to preservation temperature and period of Pyungwi-san (PWS, Ping wei-san) decoction. Methods : The anti-inflammatory activity of PWS was investigated by carrageenin-induced paw edema in SD rats. At 0 month, PWS extract was administrated 100, 300 and 1000 mg/kg/day orally for seven days prior to induction of edema. Edema was induced by subcutaneous injection of 1% carrageenin into the right hind paw. The paw volume was measured at 4 hr following carrageenin-induced paw edema in rats. At 6 and 12 months, PWS extracts according to preservation temperatures (room temperature, $4^{\circ}C$ and $-20^{\circ}C$) were administrated in rats and then carrageenin-induced paw edema volume was measured. Results : PWS showed inhibitory effect on carrageenin-induced paw edema in rats and the optimal dose was 1000 mg/kg/day at 0 month of storage. At 6 month of storage, PWS storaged at $4^{\circ}C$ and $-20^{\circ}C$ were inhibited paw edema but that storaged at room temperature was not reduced paw edema in rats. Conclusions : These results suggest that PWS decoction pouch has anti-inflammatory activities at both $4^{\circ}C$ and $-20^{\circ}C$ during 6 month storage.