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Activation of K+ channel by 1-EBIO rescues the head and neck squamous cell carcinoma cells from Ca2+ ionophore-induced cell death

  • Yin, Ming Zhe;Park, Seok-Woo;Kang, Tae Wook;Kim, Kyung Soo;Yoo, Hae Young;Lee, Junho;Hah, J. Hun;Sung, Myung Hun;Kim, Sung Joon
    • The Korean Journal of Physiology and Pharmacology
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    • v.20 no.1
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    • pp.25-33
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    • 2016
  • Ion channels in carcinoma and their roles in cell proliferation are drawing attention. Intracellular $Ca^{2+}$ ($[Ca^{2+}]_i$)-dependent signaling affects the fate of cancer cells. Here we investigate the role of $Ca^{2+}$-activated $K^+$ channel (SK4) in head and neck squamous cell carcinoma cells (HNSCCs) of dif-ferent cell lines; SNU-1076, OSC-19 and HN5. Treatment with $1{\mu}M$ ionomycin induced cell death in all the three cell lines. Whole-cell patch clamp study suggested common expressions of $Ca^{2+}$-activated $Cl^-$ channels (Ano-1) and $Ca^{2+}$-activated nonselective cation channels (CAN). 1-EBIO, an activator of SK4, induced outward $K^+$ current (ISK4) in SNU-1076 and OSC-19. In HN5, ISK4 was not observed or negligible. The 1-EBIO-induced current was abolished by TRAM-34, a selective SK4 blocker. Interestingly, the ionomycin-induced cell death was effectively prevented by 1-EBIO in SNU-1076 and OSC-19, and the rescue effect was annihilated by combined TRAM-34. Con-sistent with the lower level of ISK4, the rescue by 1-EBIO was least effective in HN5. The results newly demonstrate the role of SK4 in the fate of HNSCCs under the $Ca^{2+}$ overloaded condition. Pharmacological modulation of SK4 might provide an intriguing novel tool for the anti-cancer strategy in HNSCC.

The Correlation between the Scandinavian Stroke Scale and the Motricity Index in Acute Cerebral Infarction Patient (급성기 뇌경색 환자에서 Scandinavian Stroke Scale과 Motricity Index 간의 상관관계에 대한 연구)

  • Lee, Young-eun;Jamiyandorj, Budlkham;Noh, Hyeon-seok;Lee, Dong-hyuk;Yang, Seung-bo;Lee, Hyun-joong;Cho, Seung-yeon;Park, Seong-uk;Jung, Woo-sang;Moon, Sang-kwan;Park, Jung-mi;Cho, Ki-ho;Ko, Chang-nam
    • The Journal of Internal Korean Medicine
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    • v.36 no.2
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    • pp.93-104
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    • 2015
  • Objectives: This study examined the correlation between the Scandinavian Stroke Scale (SSS) and the Motricity Index (MI) in acute cerebral infarction patients. Methods: We studied 75 inpatients within a month after the onset of cerebral infarction; patients were recruited from July 2012 to November 2013. We analyzed the correlation between changes in SSS and MI by pattern identification. Results: A significant moderate positive linear correlation was noted between SSS and MI in the total patient cohort and in a Fire-heat group, Dampness-phlegm group, Qi deficiency group, and Deficiency syndrome group. A significant strong positive linear correlation existed between SSS and MI in the Excess syndrome group. The Yin deficiency group showed a weak positive linear correlation, but it was not statistically significant. Conclusions: This study provides evidence that the correlation between SSS and MI in acute cerebral infarction patients could differ depending on pattern identification.

Antioxidant Activities of Glycyrrhizin and its Effect on Renal Expression of Na,K-ATPase in Gentamicin-induced Acute Renal Failure Rats (Glycyrrhizin의 항산화 활성 및 Gentamincin 유도 급성 신부전 백서 신장의 Na,K-ATPase 발현에 미치는 영향)

  • Sohn Eun Jin;Kang Dae Gill;Lee An Sook;Lee Yun Mi;Yin Ming Hao;Yeum Kee Bok;Noh Suk Yun;Lee Ho Sub
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.2
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    • pp.542-548
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    • 2003
  • The present study was aimed to investigate whether glycyrrhizin, which is the major component of Glycyrrhiza uralensis, has an antioxidant effect and regulatory effect on Na,K-ATPase in gentamicin-induced acute renal failure (ARF) rats . It is well known that reactive oxygen species (ROS), such as superoxide anion and hydroxyl radical, are main pathophysiological factor in gentamicin-induced ARF. Glycyrrhizin showed potent in vitro antioxidant activity, especially superoxide scavenging activity, in a dose-dependent manner. Plasma lipid peroxide level was restored to normal level by oral administration of glycyrrhizin (200 mg/kg) in the gentamicin-induced ARF rats. The expression of Na,K-ATPase α1 subunit was restored in the gentamicin-induced ARF rats by administration of glycyrrhizin, whereas β1 subunit was not restored. The renal functional parameters including urine volume, cleatinine clearance, urine osmolality, solute-free water reabroption were also partially restored in gentamicin-ARF rats by administration of glycyrrhizin. Taken together, the amelioration of renal functions and the expression of sodium pump by administration of glycyrrhizin in the gentamicin-induced ARF was appear to be mediated by the scavenging of ROS.

The effects of Yukmijihwang-Tang(UJT) on Dementia induced by focal brain ischemic injury in rats. (육미지황탕(六味地潢湯)이 국소(局所) 뇌허혈(腦虛血)로 유발된 기억력(記憶力) 손상(損傷) 백서(白鼠)에 미치는 영향(影響))

  • Kim, Kyung-Hwa;Kim, Kyung-Su;Kim, Kyeong-Ok
    • Journal of Oriental Neuropsychiatry
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    • v.17 no.3
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    • pp.45-56
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    • 2006
  • Objective: Yukmijibwang-Tang(UJT) has been used for Dementia derived by deficiency of Kidney-Yin in the oriental medicine. This study was planned to examine the effects of UJT on the memory loss induced by focal brain ischemic injury in the rats. Methods : Experimental groups were divided into 4 groups ; Normal group, Control group, UJT1 group and UJT2 group. Control group were no treated after focal brain ischemic injury. UJT1 group were administered UJT 0.3 $m{\ell}/kg$ to focal brain ischemic injuried rats for 21 days, UJT2 group were administered UJT 1.2 $m{\ell}/kg$ to focal brain ischemic injuried rats for 21 days. The present author observed the number of errors on the eight-arm radial maze task, the rate of correct choice on the eight-arm radial maze task, the values of density of Cresy1 violet- stained sections in the hippocampal CA1 and the values of density of Acetlycholine Esterase (AchE)stained nuclei in the hippocampal CA1. Results : The number of errors in the Eigth-arm radial maze task was significantly decreased in UJT1 group on 1, 2, 3, 5, 6days, And it was significantly decreased in UJT2 group on 1-6days compared with control group. The rate of correct choice in the eight-arm radial maze task was significantly increased in UJT1, UJT2 group compared with control group. The values of density of Cresyl violet-stained stained sections in the hippocampal CA1 were significantly increased in UJT1, UJT2 group compared with control group. The values of density of AchE in the hippocampal CA1 were increased in UJT1, UJT2 group compared with control group, but the values were not significant. Conclusions: The present author thought that Yukmijihwang-Tang could he used for curing dementia induced by focal brain ischemic injury.

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Study on Hwa-acupuncture Theory (오행화침법(五行和鍼法)에 대한 연구 - 부방(腑方)중심으로)

  • Sim, Sung-Heum;Kam, Cheol-Woo;Park, Dong-Il;Byun, Mi-Kwon;Kim, Sang-Heon;Baek, Sang-In
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.5
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    • pp.1119-1124
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    • 2008
  • The theory of Hwa Acupuncture Therapy (HAT), called Hwa Chim Therapy, is a part of the Five Elements Theory unique to Korea. H99AT, created and developed by Jaehoon Song, integrates the victor-vanquished as well as the son-mother relationship of the Five Elements of breakdown and restoration of balance between yin and yang. And also, it provides resources and data on The seventy fifth Difficulty Nan(75難), The sixty ninth Difficulty Nan(69難) of Classic on Difficulty - Nan Jin 75, 69. HAT establishes objectiveness and accuracy of diagnosis based upon the traditional method and procedure of pulse taking. In HAT, a person's state of illness is diagnosed by applying the comparative examination of the palpitation of the pulse. It is the fact that the pulse varies according to the state, and that HAT treatment has proven the positive results by using the victor-vanquished relationship of Classic on The Nan Jin 75. On the basis of this, it is necessary to add the sixty ninth Difficulty(69難), to research the theory of the generation of the Five Element. Despite a the concise and simple theory, Hwa Chim is very effective in treating the wide range of illness, and thus it has gained an increasing attention of many scholars and practitioners in the field of traditional Korean oriental medicine. However, it is the first theoretical attempt to the clinical research and scientific methodology of Ohaeng(Five) Hwa Chim, and more active Hwa Acupuncture R&D is being conducted nationwide.

Study on the Fancy Relationship of Viscera under the Diao-hou-yong-shen (조후용신(調候用神)을 활용한 월별(月別) 장부간(臟腑間)의 호오관계)

  • Kim, Hyun-Jung;Kim, Yong-Chan;Kim, Byung-Soo;Kang, Jung-Soo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.5
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    • pp.1062-1070
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    • 2008
  • The human body and nature respond to each other. The change of nature influences to directly human body. One of the change is the weather change. and there is order in the change. The order is twelve months. To explain the weather change of the cold, hot. dry and wet. we can use Four seasons, The twenty-four seasons, or The twelve month. To explain the five elements of the chinese cosmogony, The four season is useful, and the change of weather, the twenty-four seasons is good. But, the viscera is explained by the ten celestial stems and the twelve horary sings. Thus the twelve horary sings is most useful to explain, because one year is composed by twelve months. The twelve season and fancy of the ten celestial stems is explained fully by Diao-hou-yong-shen. Diao-hou-yong-shen is expressed by the zodiac signs, and explained by the disposition of the zodiac sings. In addition to the oriental medical science is also explained and expressed by the zodiac signs. Therefore, I think that the change of viscera, according to weather, is based on the Diao-hou-yong-shen, and I get some results. In the acting of viscera, there are some relationship between organs. The relationship is not influenced directly by the weather of four seasons, unless there are some special details. If the energy of the month, which rules one specific organ, is weak, doctor should fill up the organ. If not, the organ tends to get sick. According to the full or weak of the five elements which is under the month, the useless or harmful elements should be taken off, and useful and needful elements should be serviced. The balance between cold, hot, dry and wet should be maintained. However, the fancy of the viscera is very different. So, doctor should be careful to maintain balance. The full and weak between Yin and Yang should be considered when doctor think about cold and hot in the month.

Morphological Characteristics of Normal and Gynandromorphic Hyalomma asiaticum Schulze and Schlottke, 1930

  • Chen, Ze;Li, You-quan;Ren, Qiao-Yun;Luo, Jin;Hu, Yonghong;Li, Kai;Liu, Guang-Yuan;Luo, Jian-xun;Liu, Jingze;Yin, Hong
    • Parasites, Hosts and Diseases
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    • v.53 no.3
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    • pp.361-364
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    • 2015
  • Gynandromorphic ticks are extremely rare, and often attract parasitologists' attention. During our examination of tick specimens, an engorged gynandromorph of Hyalomma asiaticum was noticed. This is the first record of gynandromorphic ticks from China. In this study, several important morphological structures of normal and gynandromorphic H. asiaticum were analyzed. Comparing to the normal H. asiaticum, the gynandromorphic specimen was a typical bipartite protogynander. Its right side showed normal female characteristics, whereas the left side had normal male traits. Different from other gynandromorphic ticks containing 1 anus, this tick reported here had 2 complete anuses, and the anus of the male part had a single adanal plate.

Molecular Identification and Sequence Analysis of Coat Protein Gene of Ornithogalum mosaic virus Isolated from Iris Plant

  • Yoon, Hye-In;Ryu, Ki-Hyun
    • The Plant Pathology Journal
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    • v.18 no.5
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    • pp.251-258
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    • 2002
  • A potyvirus was isolated from cultivated Iris plants showing leaf streak mosaic symptom. Reverse transcription and polymerase chain reaction (RT-PCR) product of 1 kb long which encoded partial nuclear inclusion B and N-terminal region of viral coat protein (CP) genes for potyviruses was successfully amplified with a set of potyvirus-specific degenerate primers with viral RNA samples from the infected leaves: The RT-PCR product was cloned into the plasmid vector and its nucleotide sequences were determined. The nucleotide sequence of a CDNA clone revealed that the virus was an isolate of Ornithogalum moseic virus (OrMV) based on BLAST search analysis and was denoted as OrMV Korean isolate (OrMV-Ky). To further characterize the CP gene of the virus, a pair of OrMV-specific primers was designed and used for amplification of the entire CP gene of OrMV-Kr, The virus was easily and reliably detected from virus-infected Iris leaves by using the RT-PCR with the set of virus-specific primers. The RT-PCR product of the CP gene of the virus was cloned and its sequences were determined from selected recombinant CDNA clones. Sequence analysis revealed that the CP of OrMV-Kr consisted of 762 nucleotides, which encoded 253 amino acid residues. The CP of OrMV-Ky has 94.1-98.0% amino acid sequence identities (20 amino acid alterations) with that of other three isolates of OrMV, Two NT rich potential N-glycosylation motif sequences, NCTS and NWTM, and a DAC triple box responsible for aphid transmission were conserved in CPs of all the strains of OrMV. The virus has 58.5-86.2% amino acid sequence identities with that of other 16 potyviruses, indicating OrMV to be a distinct species of the genus. OrMV-Ky was the most related with Pterostylia virus Yin the phylogenetic tree analysis of CP at the amino acid level. This is the first report on the occurrence of OrMV in Iris plants in Korea. Data in this study indicate that OrMV is found in cultivated Iris plants, and may have mixed infection of OrMV and Iris severe mosaic virus in Korea.

Synergistic effects of grape branch and Pleurotus eryngii extract combination against inflammation on activated mast cells and atopic dermatitis-like skin lesions in mice (포도가지와 새송이버섯 혼합 추출물의 항염증과 아토피 피부염 개선 상승효과)

  • Yin, Hong Hua;Cho, Byoung Ok;Lee, Hye Seung;Chu, Jung Im;Jang, Seon Il
    • Korean Journal of Food Science and Technology
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    • v.48 no.6
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    • pp.582-589
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    • 2016
  • The aim of this study was to investigate the synergistic anti-inflammatory and anti-dermatitis effects of grape branch extract (GBE) and Pleurotus eryngii (PEE) combinations on the active immune cells and atopic dermatitis-like skin lesions in mice. The results showed that the combination of GBE ($12.5{\mu}g/mL$) and PEE ($500{\mu}g/mL$) led to much stronger inhibitory effects on the production of inflammatory mediators, such as NO and $PGE_2$ than that exhibited by GBE ($25{\mu}g/mL$) and PEE ($1000{\mu}g/mL$) alone, even at higher concentrations, in LPS-stimulated RAW 264.7 macrophages. The combination of GBE and PEE synergistically inhibited the production of TNF- and IL-6 in LPS-stimulated RAW 264.7 macrophages and PMA plus A23187-activated HMC-1 cells. Furthermore, combined GBE and PEE had a stronger ameliorative effect than GBE and PEE alone by inhibiting the clinical sores, IgE, and IL-4 on atopic dermatitis-like skin lesions in mice. Collectively, these results suggested that the combination of GBE and PEE produced a synergistic anti-inflammatory and anti-atopic dermatitis effect on immune cells and atopic dermatitis-like skin lesions in mice.

Antioxidant, anti-inflammatory, and anti-pruritic effects of grape branch extract (포도가지 추출물의 산화방지, 항염증 및 항가려움 효과)

  • Cho, Byoung Ok;Yin, Hong Hua;Che, Denis Nchang;Kim, Sang Jun;Ryu, Cheol;Jang, Seon Il
    • Korean Journal of Food Science and Technology
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    • v.48 no.6
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    • pp.590-596
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    • 2016
  • This study was designed to investigate the antioxidant activities of the ethanol extracts (GBE) of grape branches (Campbell Early). The total polyphenol and flavonoid content of GBE was $201.42{\pm}4.16$ and $11.85{\pm}0.44mg\;GAE/g$, respectively. The antioxidant activity of GBE was measured using the ABTS and DPPH assays, and the $IC_{50}$ values were $45.60{\pm}0.09$ and $299.13{\pm}0.22$, respectively. GBE inhibited the production of pro-inflammatory mediators (NO, iNOS, $PGE_2$, COX-2, $IL-1{\beta}$, and IL-6) in lipopolysaccharide-stimulated RAW 264.7 macrophages in a dose-dependent manner. Moreover, GBE treatment significantly suppressed the production of $TNF-{\alpha}$ and IL-6 cytokines in phorbol 12-myristate 13-acetate plus calcium ionophore A23187-stimulated HMC-1 human mast cells. Furthermore, the administration of GBE markedly inhibited the scratching behavior induced by the compound 48/80 in ICR mice. These results suggested that GBE has potential as a therapeutic agent against inflammation and itch-related skin diseases.