1. Allosteric nanobodies reveal the dynamic range and diverse mechanisms of G-protein-coupled receptor activation.

    Nature 535(7612):448 (2016) PMID 27409812 PMCID PMC4961583

    G-protein-coupled receptors (GPCRs) modulate many physiological processes by transducing a variety of extracellular cues into intracellular responses. Ligand binding to an extracellular orthosteric pocket propagates conformational change to the receptor cytosolic region to promote binding and ac...
  2. Clinical effect of add-on Primovist-enhanced magnetic resonance imaging on preoperative tumor staging in hepatocellular carcinoma patients.

    Journal of Surgical Oncology 114(1):106 (2016) PMID 27332047

    We analyzed the incidence of change of Barcelona Clinic Liver Cancer (BCLC) stage after add-on Primovist-enhanced magnetic resonance imaging (MRI) in hepatocellular carcinoma (HCC) patients with Barcelona Clinic Liver Cancer stage 0 or A as determined by liver dynamic computed tomography (LDCT)....
  3. Survival impact based on the thoroughness of pelvic lymphadenectomy in intermediate- or high-risk groups of endometrioid-type endometrial cancer: A multi-center retrospective cohort analysis.

    Gynecologic Oncology 141(3):440 (2016) PMID 27020700

    To investigate whether the number of lymph nodes obtained during lymphadenectomy affects the survival of patients with intermediate- or high-risk endometrioid-type endometrial cancer. A total of 476 patients who were diagnosed with FIGO stage IB to IIIC2 endometrioid adenocarcinoma through surgi...
  4. Myasthenia Crisis Induced by Pegylated-Interferon in Patient With Chronic Hepatitis C: A Case Report.

    Medicine (Baltimore) 95(21):e3782 (2016) PMID 27227948 PMCID PMC4902372

    Myasthenia gravis is occasionally associated with thymoma that needs surgical resection and may progress to severe respiratory failure. We experienced a rare case of myasthenia crisis during antiviral therapy for chronic hepatitis C, in whom mediastinal thymoma was discovered and successfully ma...
  5. A Food Effect Study of an Oral Thrombin Inhibitor and Prodrug Approach To Mitigate It.

    Molecular Pharmaceutics 13(4):1197 (2016) PMID 26886576

    LB30870, a new direct thrombin inhibitor, showed 80% reduction in oral bioavailability in fed state. The present study aims to propose trypsin binding as a mechanism for such negative food effect and demonstrate a prodrug approach to mitigate food effect. Effect of food composition on fed state ...
  6. Structure-based design and biological evaluation of novel 2-(indol-2-yl) thiazole derivatives as xanthine oxidase inhibitors.

    Bioorganic & Medicinal Chemistry Letters 26(3):950 (2016) PMID 26774578

    Inhibition of xanthine oxidase (XO) has obviously been a central concept for controlling hyperuricemia, which causes serious and painful inflammatory arthritis disease such as gout. We discovered a series of novel 2-(indol-2-yl)thiazole derivatives as XO inhibitors at the level of nanomolar acti...
  7. Characteristics and Discrepancies in Acute-on-Chronic Liver Failure: Need for a Unified Definition.

    PLoS ONE 11(1):e0146745 (2016) PMID 26789409 PMCID PMC4720429

    To investigate the prevalence, mortalities, and patient characteristics of Acute-on-chronic liver failure (ACLF) according to the AARC (Asian Pacific Association for the Study of the Liver ACLF Research Consortium) and European Association for the Study of the Liver CLIF-C (Chronic Liver Failure...
  8. Oral proteasome inhibitor with strong preclinical efficacy in myeloma models.

    BMC Cancer 16(1):247 (2016) PMID 27012957 PMCID PMC4806471

    The proteasome is a validated anti-cancer target and various small-molecule inhibitors are currently in clinical development or on the market. However, adverse events and resistance associated with those proteasome inhibitors indicate the need for a new generation of drugs. Therefore, we focused...
  9. Altering sphingolipid composition with aging induces contractile dysfunction of gastric smooth muscle via K(Ca) 1.1 upregulation.

    Aging Cell 14(6):982 (2015) PMID 26288989 PMCID PMC4693452

    K(Ca) 1.1 regulates smooth muscle contractility by modulating membrane potential, and age-associated changes in K(Ca) 1.1 expression may contribute to the development of motility disorders of the gastrointestinal tract. Sphingolipids (SLs) are important structural components of cellular membrane...
  10. Structural Insights into the Dynamic Process of β2-Adrenergic Receptor Signaling.

    Cell 161(5):1101 (2015) PMID 25981665 PMCID PMC4441853

    G-protein-coupled receptors (GPCRs) transduce signals from the extracellular environment to intracellular proteins. To gain structural insight into the regulation of receptor cytoplasmic conformations by extracellular ligands during signaling, we examine the structural dynamics of the cytoplasmi...
  11. Safety of fertility-sparing surgery in primary mucinous carcinoma of the ovary.

    Cancer Research and Treatment 47(2):290 (2015) PMID 25287480 PMCID PMC4398117

    The aim of this study is to evaluate the safety of fertility-sparing surgery as the treatment for patients with primary mucinous epithelial ovarian cancer. A retrospective study of patients with mucinous ovarian cancer between 1991 and 2010 was performed. The demographics and survival outcomes w...
  12. Design and synthesis of novel 2-(indol-5-yl)thiazole derivatives as xanthine oxidase inhibitors.

    Bioorganic & Medicinal Chemistry Letters 25(6):1254 (2015) PMID 25704891

    Xanthine oxidase (XO) inhibitors have been widely used for the treatment of gout. Indole rings are frequently used as active scaffold in designing inhibitors for enzymes. Herein, we describe the structure-activity relationship for novel xanthine oxidase inhibitors based on indole scaffold. A ser...
  13. Clinical Implication of p16, Ki-67, and Proliferating Cell Nuclear Antigen Expression in Cervical Neoplasia: Improvement of Diagnostic Accuracy for High-grade Squamous Intraepithelial Lesion and Prediction of Resection Margin Involvement on Conization Specimen.

    Journal of cancer prevention 20(1):70 (2015) PMID 25853106 PMCID PMC4384717

    Cervical intraepithelial neoplasia (CIN) grading is subjective and affected by substantial rates of discordance among pathologists. Although the use of p16INK4a (p16) staining has been proven to improve diagnostic accuracy for high-grade squamous intraepithelial lesion (HSIL), the clinical evide...
  14. Nuts and Bolts of CF3 and CH 3 NMR Toward the Understanding of Conformational Exchange of GPCRs.

    Methods in Molecular Biology 1335:39 (2015) PMID 26260593

    With the advent of efficient protein expression and functional purification protocols, it is now possible to reconstitute many G protein-coupled receptors (GPCRs) in detergent micelles at concentrations of 25 μM or more. Such concentrations are sufficient for studies of conformational states and...
  15. Identifying a low-risk group for parametrial involvement in microscopic Stage IB1 cervical cancer using criteria from ongoing studies and a new MRI criterion.

    BMC Cancer 15(1):167 (2015) PMID 25885786 PMCID PMC4374417

    There are currently three ongoing studies on less radical surgery in cervical cancer: ConCerv, GOG-278, and SHAPE. The aim of this study was to evaluate the performance of the criteria used in ongoing studies retrospectively and suggest a new, simplified criterion in microscopic Stage IB1 cervic...
  16. Functional Modulation of Regulatory T Cells by IL-2.

    PLoS ONE 10(11):e0141864 (2015) PMID 26529512 PMCID PMC4631326

    The suppressive function of regulatory T cells (Tregs) is critical to the maintenance of immune homeostasis in vivo and yet, the specific identification of Tregs by phenotypic markers is not perfect. Tregs were originally identified in the CD4+CD25+ fraction of T cells, but FoxP3 expression was ...
  17. Success Factors of Laparoscopic Nerve-sparing Radical Hysterectomy for Preserving Bladder Function in Patients with Cervical Cancer: A Protocol-Based Prospective Cohort Study.

    Annals of Surgical Oncology 22(6):1987 (2015) PMID 25465377

    Success factors of laparoscopic nerve-sparing radical hysterectomy (LNRH) to preserve bladder function are little known despite its widespread use. Thus, we conducted a protocol-based prospective cohort study to evaluate clinicopathologic factors for preserving autonomic nerves and its impact on...
  18. Clinical characteristics, management, and outcome of 22 cases of primary hypophysitis.

    Endocrinology and Metabolism 29(4):470 (2014) PMID 25325267 PMCID PMC4285029

    Primary hypophysitis causes varying degrees of endocrine dysfunction and mass effect. The natural course and best treatment have not been well established. Medical records of 22 patients who had been diagnosed with primary hypophysitis between January 2001 and March 2013 were retrospectively rev...
  19. Effect of iodine restriction on thyroid function in subclinical hypothyroid patients in an iodine-replete area: a long period observation in a large-scale cohort.

    Thyroid 24(9):1361 (2014) PMID 24892764

    Excessive iodine intake is related to a higher prevalence of hypothyroidism, including subclinical hypothyroidism (SCH), in iodine-replete areas. This study aimed to evaluate the effect of iodine restriction on thyroid function in SCH patients in an iodine-replete area and analyze the relationsh...
  20. Genetic Structure of and Evidence for Admixture between Western and Korean Native Pig Breeds Revealed by Single Nucleotide Polymorphisms.

    Asian-Australasian journal of animal sciences 27(9):1263 (2014) PMID 25178369 PMCID PMC4150192

    Comprehensive information on genetic diversity and introgression is desirable for the design of rational breed improvement and conservation programs. Despite the concerns regarding the genetic introgression of Western pig breeds into the gene pool of the Korean native pig (KNP), the level of thi...