• Journal of Yeungnam Medical Science
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• 제4권1호
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• pp.17-23
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• 1987

백서심장조직을 trypsin과 collagenase 두가지의 효소를 사용하여 분리하면서 각 효소의 분리효과와 두가지 효소의 복합적 세포분리효과를 조사하였으며 이와 동시에 dimethyl sulfoxide가 세포분리과정 및 단기간 배양중에 세포에 미치는 효과를 조사한 결과를 다음과 같이 요약할 수 있다. 1. 백서심장조직에서 세포를 분리할 때 $4^{\circ}C$ trypsin 18시간 전처치후 $37^{\circ}C$ collagenase 처치한 군에서 세포생존율 세포수확량 및 심근세포 생존율이 가장 높았다. 즉 단일 효소 처리보다는 효소 복합연속 처리가 더 효율적이었다. 2. $37^{\circ}C$ trypsin만으로 세포분리를 하였을 때 세포생존율과 수확량이 가장 낮았다. 3. 백서심장세포의 분리과정과 초기 배양 과정에 세포회복이나 보호에 대한 DMSO의 효과는 인정되지 않았으며 오히려 세포파괴 효과가 높음을 알 수 있었다.

• BMB Reports
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• 제43권9호
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• pp.622-628
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• 2010

Dimethyl sulfoxide (DMSO) can be reduced to dimethyl sulfide by MsrA, which stereospecifically catalyzes the reduction of methionine-S-sulfoxide to methionine. Our previous study showed that DMSO can competitively inhibit methionine sulfoxide reduction ability of yeast and mammalian MsrA in both in vitro and in vivo, and also act as a non-competitive inhibitor for mammalian MsrB2, specific for the reduction of methionine-R-sulfoxide, with lower inhibition effects. The present study investigated the effects of DMSO on the physiological antioxidant functions of methionine sulfoxide reductases. DMSO elevated hydrogen peroxide-mediated Saccharomyces cerevisiae cell death, whereas it protected human SK-Hep1 cells against oxidative stress. DMSO reduced the protein-carbonyl content in yeast cells in normal conditions, but markedly increased protein-carbonyl accumulation under oxidative stress. Using Msr deletion mutant yeast cells, we demonstrated the DMSO's selective inhibition of the antioxidant function of MsrA in S. cerevisiae, resulting in an increase in oxidative stress-induced cytotoxicity.

• BMB Reports
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• 제42권9호
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• pp.580-585
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• 2009

Dimethyl sulfoxide (DMSO) is widely used in chemistry and biology as a solvent and as a cryoprotectant. It is also used as a pharmaceutical agent for the treatment of interstitial cystitis and rheumatoid arthritis. Previous reports described DMSO as being reduced by methionine-S-sulfoxide reductase (MsrA). However, little is known about the DMSO reduction capability of methionine-R-sulfoxide reductase (MsrB) or its effect on the catalysis of methionine sulfoxide reduction. We show that mammalian MsrB2 and MsrB3 were unable to reduce DMSO. This compound inhibited MsrB2 activity but did not inhibit MsrB3 activity. We further determined that DMSO functions as an inhibitor of MsrA and MsrB2 in the reduction of methionine sulfoxides via different inhibition mechanisms. DMSO competitively inhibited MsrA activity but acted as a non-competitive inhibitor of MsrB2 activity. Our study also demonstrated that DMSO inhibits in vivo methionine sulfoxide reduction in yeast and mammalian cells.

• 한국잠사곤충학회지
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• 제38권2호
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• pp.124-129
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• 1996

4령과 5령 누에에 1%, 3%, 5%의 dimethyl sulfoxide를 침식시키면 누에의 실용형질인 잠체중, 견사선 무게, 암·수 견중 및 견충중과 산란량이 현저히 증가했다. 그러나 경과일수, 족중생존율과 부화율은 대조와 큰 차이를 보이지 않았다. 한편 dimethyl sulfoxide 1.3%구에서는 누에의 혈액내 단백질과 트리할로스량을 제외하고는 차이가 없었다.

• The Korean Journal of Physiology and Pharmacology
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• 제5권2호
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• pp.157-163
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• 2001

The effects of dimethyl sulfoxide (DMSO) were studied in two groups of Xenopus oocytes, one expressing ATP sensitive $K^+\;(K_{ATP})$ channel comprised of sulfonylurea receptor SUR1 and inwardly rectifying $K^+$ channel subunit Kir6.2, and the other expressing renal $K_{ATP}$ channel ROMK2. At concentrations of $0.3{\sim}10%$ (vol/vol) DMSO inhibited whole cell Kir6.2/SUR1 currents elicited by bath application of sodium azide (3 mM) in a concentration-dependent manner. The inhibition constant and Hill coefficient were 2.93% and 1.62, respectively. ROMK2 currents, however, was not affected significantly by DMSO. The results support the idea that DMSO inhibits $K_{ATP}$ channel expressed in Xenopus oocyte through a protein-specific mechanism(s) that remains to be further elucidated.

• 한국어류학회지
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• 제19권2호
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• pp.173-177
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• 2007

참돔 정자의 동결보존에 미치는 희석제와 동해방지제의 효과를 운동성과 생존율로 비교하였다. 300 mM glucose를 희석제로 사용하였을 때 보존 효과가 좋았다. 동해방지제로는 10% dimethyl sulfoxide (DMSO)를 동결보존에 사용하였을 때 해동 후의 운동성과 생존율이 가장 높았다.

• 대한화학회지
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• 제56권4호
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• pp.416-423
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• 2012

Using time domain reflectometry, the complex dielectric spectra between 10 MHz to 20 GHz has been measured in the whole composition range at 10, 20, 30 and $40^{\circ}C$ for the binary mixtures of ethylene glycol and dimethyl sulfoxide. For all the mixtures, only one dielectric loss peak was observed in this frequency range. The relaxation in these mixtures can be described by a single relaxation time using the Debye model. A systematic variation is observed in dielectric constant (${\varepsilon}_0$) and relaxation time (${\tau}$). The excess permittivity (${\varepsilon}^E$), excess inverse relaxation time $(1/{\tau})^E$, Kirkwood correlation factor (g) and thermodynamic parameters viz. enthalpy of activation (${\Delta}H$) and Gibbs free energy of activation (${\Delta}G$) have been determined, to confirm the formation of hydrogen bonded homogeneous and heterogeneous cooperative domains, the dynamics of solute - solute interaction and the hindrance to molecular rotation in the hydrogen bonded glass forming ethylene glycol - dimethyl sulphoxide system.

• Journal of Photoscience
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• 제9권2호
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• pp.290-292
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• 2002

The intermediate M420 formed in a solution of firefly luciferin in deoxygenated dimethyl-sulfoxide added potassium f-butoxide was observed to emit yellow-green and red light by filter-photometry. By H-NMR, M420 was found to be deprotonated at the site where luciferin reacts with oxygen.

• 한국수정란이식학회:학술대회논문집
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• 한국수정란이식학회 2006년도 The 6th Intermational Symposium on Developmental Biotechnology
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• pp.18-19
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• 2006

• 대한수의사회지
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• 제22권5호
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• pp.266-283
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• 1986