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Kim, Shang-Jin,Zhang, Haifei,Khaliulin, Igor,Choisy, Sté,phanie C.M.,Bond, Richard,Lin, Hua,El Haou, Said,Milnes, James T.,Hancox, Jules C.,Suleiman, M. Saadeh,James, Andrew F. Ovid Technologies Wolters Kluwer -American Heart A 2012 Circulation. Arrhythmia and electrophysiology Vol.5 No.6
<P>Cardiac ATP-sensitive K(+) channels have been suggested to contribute to the adaptive physiological response to metabolic challenge after β-adrenoceptor stimulation. However, an increased atrial K(+)-conductance might be expected to be proarrhythmic. We investigated the effect of ATP-sensitive K(+) channel blockade on the electrophysiological responses to β-adrenoceptor-induced metabolic challenge in intact atria.</P>
Psychometric Properties of the Hypomania Checklist-32 in Korean Patients with Mood Disorders
Bo-Hyun Yoon,Jules Angst,Won-Myong Bahk,Hee Ryung Wang,Seung-Oh Bae,Moon Doo Kim,Young-Eun Jung,Kyung Joon Min,Hwang-Bin Lee,Seunghee Won,Jeongwan Hong,Myong Su Choi,Duk-In Jon,Young Sup Woo 대한정신약물학회 2017 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.15 No.4
Objective: The aim of this study was to examine the validity of the Korean version of the Hypomania Checklist-32, second revision (HCL-32-R2) in mood disorder patients. Methods: A total of 454 patients who diagnosed as mood disorder according to Structured Clinical Interview for DSM-IV Axis I Disorders, clinician version (SCID-CV) (bipolar disorder [BD] I, n=190; BD-II, n=72; and major depressive disorder [MDD], n=192) completed the Korean module of the HCL-32-R2 (KHCL-32-R2). Results: The KHCL-32-R2 showed a three-factorial structure (eigenvalue >2) that accounted for 43.26% of the total variance. Factor 1 was labeled “active/elated” and included 16 items; factor 2, “irritable/distractible” and included 9 items; and factor 3 was labeled “risk-taking/indulging” and included 9 items. A score of 16 or more on the KHCL-32-R2 total scale score distinguished between BD and MDD, which yielded a sensitivity of 70% and a specificity of 70%. MDD and BD-II also could be differentiated at a cut-off of 15 with maximized sensitivity (0.67) and specificity (0.66). Cronbach’s alpha of KHCL-32-R2 and its subsets (factors 1, 2, and 3) were 0.91, 0.89, 0.81 and 0.79, respectively. Correlations between KHCL-32-R2 and Montgomery- Asberg Depression Rating Scale, Young Mania Rating Scale and Korean version of Mood Disorder Questionnaire were −0.66 ( p =0.41), −0.14 ( p =0.9), and 0.61 ( p <0.001), respectively. Conclusion: The KHCL-32-R2 may be a useful tool in distinguishing between bipolar and depressive patients in clinical settings.
( Sunju Lee ),( Sangsu Park ),( Minh Tan Nguyen ),( Eunyoung Lee ),( Julee Kim ),( Sangki Baek ),( Chong Jai Kim ),( Yeon Jin Jang ),( Han Choe ) 생화학분자생물학회 2019 BMB Reports Vol.52 No.8
Conventionally, immunotoxins have been produced as a single polypeptide from fused genes of an antibody fragment and a toxin. In this study, we adopted a unique approach of chemical conjugation of a toxin protein and an antibody fragment. The two genes were separately expressed in Escherichia coli and purified to high levels of purity. The two purified proteins were conjugated using a chemical linker. The advantage of this approach is its ability to overcome the problem of low recombinant immunotoxin production observed in some immunotoxins. Another advantage is that various combinations of immunotoxins can be prepared with fewer efforts, because the chemical conjugation of components is relatively simpler than the processes involved in cloning, expression, and purification of multiple immunotoxins. As a proof of concept, the scFv of trastuzumab and the PE24 fragment of Pseudomonas exotoxin A were separately produced using E. coli and then chemically crosslinked. The new immunotoxin was tested on four breast cancer cell lines variably expressing HER2. The chemically crosslinked immunotoxin exhibited cytotoxicity in proportion to the expression level of HER2. In conclusion, the present study revealed an alternative method of generating an immunotoxin that could effectively reduce the viability of HER2-expressing breast cancer cells. These results suggest the effectiveness of this method of immunotoxin crosslinking as a suitable alternative for producing immunotoxins. [BMB Reports 2019; 52(8): 496-501]