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Hyung Nam Kim, Tami H Wyatt, Xueping Li, Mark Gaylord
Although parents of premature infants experience many challenges when transitioning home from the neonatal intensive care unit, healthcare providers and social support systems tend to focus on mothers and infants rather than fathers. Unfortunately, very little is known about paternal concerns and needs as compared with maternal ones. The lack of understanding about paternal needs may lead to inadequate designs of neonatal intensive care unit family support programs with less involved fathers, all of which contribute to increased burdens on mothers and poor health outcomes for their infants...
October 2016: Journal of Perinatal & Neonatal Nursing
Hyungchul Park, Ji Yong Ahn, Hwoon-Yong Jung, Joo Hyun Chun, Kwangwoo Nam, Jeong Hoon Lee, Kee Wook Jung, Do Hoon Kim, Kee Don Choi, Ho June Song, Gin Hyug Lee, Jin-Ho Kim
BACKGROUND: Gastric bleeding is not rare and difficult to treat in gastric cancer patients. We investigated whether this affects survival and if successful bleeding control improves the prognosis. PATIENTS/MATERIAL AND METHODS: We retrospectively reviewed medical records for 64 subjects who underwent endoscopic therapy for gastric cancer bleeding at Asan Medical Center from January 2012 to December 2014 (bleeding group). Each subject was matched 1:2 by age, sex, and American Joint Committee on Cancer staging with 128 randomly selected patients treated for stomach cancer during the same period (control group)...
October 21, 2016: Journal of Clinical Gastroenterology
Feng Wang, Minhuan Lan, Wai-Pong To, Kai Li, Chun-Nam Lok, Pengfei Wang, Chi-Ming Che
We report an amphiphilic macromolecule containing a cyclometalated gold(iii) complex that self-assembles into nano-sized micelles and also displays a long-lived emissive triplet excited state with a lifetime of 84 μs in degassed water. This amphiphilic Au(III) complex exhibits good biocompatibility and activity towards in vitro photo-toxicity, as well as enhanced permeability and retention effects in vivo.
October 24, 2016: Chemical Communications: Chem Comm
Jaehoon Jeong, Jooyeok Seo, Sungho Nam, Hyemi Han, Hwajeong Kim, Thomas D Anthopoulos, Donal D C Bradley, Youngkyoo Kim
Achievement of extremely high stability for inverted-type polymer:fullerene solar cells is reported, which have bulk heterojunction (BHJ) layers consisting of poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene-alt-3-fluorothieno[3,4-b]thiophene-2-carboxylate] (PTB7-Th) and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM), by employing UV-cut filter (UCF) that is mounted on the front of glass substrates. The UCF can block most of UV photons below 403 nm at the expense of ≈20% reduction in the total intensity of solar light...
April 2016: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
Fleur M Ferguson, Jing Ni, Tinghu Zhang, Bethany Tesar, Taebo Sim, Nam Doo Kim, Xianming Deng, Jennifer R Brown, Jean J Zhao, Nathanael S Gray
Dual inhibition of PI3K-δ and PI3K-γ is an established therapeutic strategy for treatment of hematological malignancies. Reported molecules targeting PI3K-δ/γ selectively are chemically similar and based upon isoquinolin-1(2H)-one or quinazolin-4(3H)-one scaffolds. Here we report a chemically distinct series of potent, selective PI3K-δ/γ inhibitors based on a 5,11-dihydro-6H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6-one scaffold with comparable biochemical potency and cellular effects on PI3K signaling. We envisage these molecules will provide useful leads for development of next-generation PI3K-δ/γ targeting therapeutics...
October 13, 2016: ACS Medicinal Chemistry Letters
Ziyu Liu, Nam Jeong Cho
We have previously shown that muscarinic acetylcholine receptors (mAChRs) promote global protein biosynthesis in SNU-407 colon cancer cells. To gain insight into the molecular mechanisms underlying this event, we examined whether mAChRs regulate the phosphorylation of eIF4B (eukaryotic initiation factor 4B), an essential component of the translation machinery. When SNU-407 cells were treated with the cholinergic agonist carbachol, eIF4B was phosphorylated in a dose- and time-dependent manner. This carbachol effect was almost completely blocked by the muscarinic antagonist atropine, demonstrating that mAChRs specifically mediate the phosphorylation of eIF4B...
October 20, 2016: Biochemical and Biophysical Research Communications
Nam Tran, Patrick Drogui, Satinder K Brar, Arnaud De Coninck
The synergistic effects were evaluated during the oxidation of carbamazepine using a sono-electrochemical process. The sono-electrochemical oxidation was performed using two types of experimental units (having 1L and 100L of working volume, respectively) and containing one anode (Ti/PbO2) and one cathode (Ti). Different operating parameters, including power of ultrasounds, current intensity and reaction time were investigated. The degree of synergy increased when the current intensity decreased, whereas it increased with the power of ultrasounds imposed...
January 2017: Ultrasonics Sonochemistry
Ye-Young Rhee, Jeong-Mo Bae, Kyung-Ju Kim, Xianyu Wen, Young-Seok Song, Nam-Yun Cho, Jung-Ho Kim, Gyeong-Hoon Kang
No abstract text is available yet for this article.
February 2016: Pathology
Ji Shin Lee, Ga-Eon Kim, Jae Hyuk Lee, Jong Hee Nam, Chan Choi
No abstract text is available yet for this article.
February 2016: Pathology
Sergio Montserrat-de la Paz, M Carmen Naranjo, Sergio Lopez, Rocio Abia, Francisco J Garcia Muriana, Beatriz Bermudez
Niacin is a broad-spectrum lipid-regulating drug used for clinical therapy of chronic high-grade inflammatory diseases. However, the mechanisms by which either niacin or the byproducts of its catabolism ameliorate these inflammatory diseases are not clear yet. Human circulating monocytes and mature macrophages were used to analyze the effects of niacin and its metabolites (NAM, NUA and 2-Pyr) on oxidative stress, plasticity and inflammatory response by using biochemical, flow cytometry, quantitative real-time PCR and Western blot technologies...
October 1, 2016: Journal of Nutritional Biochemistry
Jung-Yun Lee, Kyunghoon Kim, Yun Shin Lee, Hyo Young Kim, Eun Ji Nam, Sunghoon Kim, Sang Wun Kim, Jae Weon Kim, Young Tae Kim
BACKGROUND: The GOG-218 and ICON-7 studies recently showed that adding bevacizumab to first-line therapy for patients with advanced ovarian cancer increased progression-free survival. However, the high cost and long treatment duration prevents the incorporation of bevacizumab in practice. The aim of this study was to explore and quantify patients' preferences for adding bevacizumab to first-line therapy. METHODS: A discrete choice experiment (DCE) and trade-off question were designed and distributed to 102 ovarian cancer patients...
October 19, 2016: Gynecologic Oncology
Nam Su Oh, Ji Hoon Koh, Mi Ri Park, Younghoon Kim, Sae Hun Kim
This study examined the effects of Maillard reaction products reacted by casein and lactose (cMRP) and of cMRP fermented by Lactobacillus fermentum H9 (F-cMRP) on hypolipidemic and antiinflammatory effects in rats fed a high-fat and high-cholesterol diet (HD). The HD-fed rats had significantly increased hepatic triglyceride concentrations compared with the rats fed a normal diet. It was shown that treatment with simvastatin, L. fermentum H9 (H9), cMRP, and F-cMRP decreased total triglycerides in the liver compared with the HD group...
October 19, 2016: Journal of Dairy Science
Seung Jae Lee, Eun-Mi Jeong, Ah Young Ki, Kyung-Seo Oh, Joseph Kwon, Jae-Hyuk Jeong, Nam-Jin Chung
High salinity is a major abiotic stress that affects the growth and development of plants. This type of stress can influence flowering, the production of crops, defense mechanisms and other physiological processes. Previous studies have attempted to elucidate salt-tolerance mechanisms to improve plant growth and productivity in the presence of sodium chloride. One such plant that has been studied in detail is Salicornia, a well-known halophyte, which has adapted to grow in the presence of high salt. To further the understanding of how Salicornia grows and develops under high saline conditions, Salicornia herbacea (S...
September 29, 2016: Journal of Plant Physiology
Eun-Young Nam, Sun Ah Kim, Heejung Kim, Su-Hyun Kim, Jae-Hyun Han, Ju-Hee Lee, Dong-Il Kim
ETHNOPHARMACOLOGICAL RELEVANCE: Evodiae Fructus (EF) is the dried, unripe fruit of Evodia rutaecarpa Benth., and one of the main components of traditional herbal prescriptions issued for the treatment of sterility caused by irregular menstruation in Korea. However, scientific evidence regarding the efficacy and action mechanism of EF is lacking. AIM OF THE STUDY: In this study, the authors established an in vitro screening tool to identify promising new drug candidates in herbal medicines for the prevention and treatment of premature ovarian failure...
October 18, 2016: Journal of Ethnopharmacology
Yoon Young Choi, Suji Kim, Jung-Hwa Han, Dae-Hwan Nam, Kwon Moo Park, Seong Yong Kim, Chang-Hoon Woo
Epidemiological studies suggested that diabetic patients are susceptible to develop cardiovascular complications along with having endothelial dysfunction. It has been suggested that methylglyoxal (MGO), a glycolytic metabolite, has more detrimental effects on endothelial dysfunction rather than glucose itself. Here, we investigated the molecular mechanism by which MGO induces endothelial dysfunction via the regulation of ER stress. Biochemical data showed that 4-PBA significantly inhibited MGO-induced protein cleavages of PARP-1 and caspase-3...
October 18, 2016: Biochemical and Biophysical Research Communications
Byung Sup Kim, Doo-Sik Kong, Ho Jun Seol, Do-Hyun Nam, Jung-Il Lee
Residual or recurrent hemangiopericytoma (HPC) has been treated with radiosurgery; however, its long-term outcome is not well known. This study is to investigate the long-term outcome of gamma knife radiosurgery (GKS) for residual or recurrent HPCs. We conducted a retrospective analysis of 18 patients who underwent gamma knife radiosurgery for residual or recurrent HPCs. Of the 18 patients, 10 patients had high-grade HPCs (27 tumors) and 8 had low-grade HPCs (13 tumors). Median overall survival (OS) after the first GKS was 134...
October 18, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Kyung-Ha Lee, Peipei Zhang, Hong Joo Kim, Diana M Mitrea, Mohona Sarkar, Brian D Freibaum, Jaclyn Cika, Maura Coughlin, James Messing, Amandine Molliex, Brian A Maxwell, Nam Chul Kim, Jamshid Temirov, Jennifer Moore, Regina-Maria Kolaitis, Timothy I Shaw, Bing Bai, Junmin Peng, Richard W Kriwacki, J Paul Taylor
Expansion of a hexanucleotide repeat GGGGCC (G4C2) in C9ORF72 is the most common cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Transcripts carrying (G4C2) expansions undergo unconventional, non-ATG-dependent translation, generating toxic dipeptide repeat (DPR) proteins thought to contribute to disease. Here, we identify the interactome of all DPRs and find that arginine-containing DPRs, polyGly-Arg (GR) and polyPro-Arg (PR), interact with RNA-binding proteins and proteins with low complexity sequence domains (LCDs) that often mediate the assembly of membrane-less organelles...
October 20, 2016: Cell
Aram Hong, Heeseon Jang, Changseop Jeong, Myoung Choul Choi, Jiyoung Heo, Nam Joon Kim
We obtained resonant two-photon ionization circular dichroism (R2PICD) spectra of jet-cooled phenylalanine (Phe) and its hydrated clusters (Phe(H2O)n, n=1-2) near the origin band of the S0-S1 transition. The R2PICD spectra of Phe exhibit well-resolved CD bands of six different conformers present in the jet, which vary in sign and magnitude depending on their conformations. We revised the previous structural assignments of the Phe conformers based on the comparison between the experimental and theoretical CD signs, infrared spectra, and rotational band contours...
October 21, 2016: Journal of Physical Chemistry Letters
K-W Nam, C K Kim, T J Kim, S J An, A M Demchuk, Y Kim, S Jung, M-K Han, S-B Ko, B-W Yoon
BACKGROUND AND PURPOSE: The occurrence of stroke in cancer patients is caused by conventional vascular risk factors and cancer-specific mechanisms. However, cryptogenic stroke in patients with cancer was considered to be more related to cancer-specific hypercoagulability. In this study, we investigated the potential of the D-dimer level to serve as a predictor of early neurologic deterioration (END) in cryptogenic stroke patients with active cancer. METHODS: We recruited 109 cryptogenic stroke patients with active cancer within 72 h of symptom onset...
October 20, 2016: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
Jae-Hui Nam, Young-Jun Choi, Jae Yun Lim, Joon Hong Min, Won-Serk Kim
High-intensity focused ultrasound (HIFU) is regarded as an effective skin-lifting device; however, literature regarding treatment of the aging neck and décolletage with HIFU is scarce. Our study aimed to evaluate the efficacy of combination with HIFU and low-fluence Q-switched Nd:YAG (LQSNY) laser on the aging neck and décolletage. Nineteen women were assessed. HIFU at two visits and LQSNY laser at six visits were used to irradiate the neck and chest. At week 16, improvements were rated using the Dedo classification, Fabi/Bolton Chest Wrinkle Scale (FBCWS), and Global Aesthetic Improvement Scales (GAIS)...
October 20, 2016: Lasers in Medical Science
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