http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Effect of Honey on Serum Cholesterol and Lipid Values
Munstedt, Karsten,Hoffmann, Sven,Hauenschild, Annette,Bulte, Michael,Georgi, Richard von,Hackethal, Andreas The Korean Society of Food Science and Nutrition 2009 Journal of medicinal food Vol.12 No.3
Small studies have suggested that honey benefits patients with high cholesterol concentrations. The present study aimed to confirm this finding in a larger group of subjects. Sixty volunteers with high cholesterol, stratified according to gender and hydroxymethylglutaryl-coenzyme A reductase inhibitor (statin) treatment (yes/no), were randomized to receive 75 g of honey solution or a honey-comparable sugar solution once daily over a period of 14 days. Baseline measurements, including body mass index (BMI) and lipid profile, were obtained, and subjects also completed dietary questionnaires and the Inventory for the Assessment of Negative Bodily Affect.Trait form (INKA-h) questionnaire. Measurements were repeated 2 weeks later. BMI and high-density lipoprotein (HDL) cholesterol values were significantly correlated (r=-0.487; P<.001) as were BMI and a lower ratio of low-density lipoprotein (LDL) cholesterol to HDL cholesterol (r=-0.420; P<.001), meaning that subjects with a high BMI had a lower HDL cholesterol value. INKA-h scores and LDL cholesterol values were also significantly correlated (r=0.273, P=.042). Neither solution influenced significantly cholesterol or triglyceride values in the total group; in women, however, the LDL cholesterol value increased in the sugar solution subgroup but not in the women taking honey. Although ingesting honey did not reduce LDL cholesterol values in general, women may benefit from substituting honey for sugar in their diet. Reducing the BMI lowers the LDL cholesterol value, and psychological interventions also seem important and merit further investigation.
Multimodal imaging of sustained drug release from 3-D poly(propylene fumarate) (PPF) scaffolds
Choi, J.,Kim, K.,Kim, T.,Liu, G.,Bar-Shir, A.,Hyeon, T.,McMahon, M.T.,Bulte, J.W.M.,Fisher, J.P.,Gilad, A.A. Elsevier Science Publishers 2011 Journal of controlled release Vol.156 No.2
The potential of poly(propylene fumarate) (PPF) scaffolds as drug carriers was investigated and the kinetics of the drug release quantified using magnetic resonance imaging (MRI) and optical imaging. Three different MR contrast agents were used for coating PPF scaffolds. Initially, iron oxide (IONP) or manganese oxide nanoparticles (MONP) carrying the anti-cancer drug doxorubicin were absorbed or mixed with the scaffold and their release into solution at physiological conditions was measured with MRI and optical imaging. A slow (hours to days) and functional release of the drug molecules into the surrounding solution was observed. In order to examine the release properties of proteins and polypeptides, protamine sulfate, a chemical exchange saturation transfer (CEST) MR contrast agent, was attached to the scaffold. Protamine sulfate showed a steady release rate for the first 24h. Due to its biocompatibility, versatile drug-loading capability and constant release rate, the porous PPF scaffold has potential in various biomedical applications, including MR-guided implantation of drug-dispensing materials, development of drug carrying vehicles, and drug delivery for tumor treatment.
Kim, Jaeyun,Arifin, Dian R.,Muja, Naser,Kim, Taeho,Gilad, Assaf A.,Kim, Heechul,Arepally, Aravind,Hyeon, Taeghwan,Bulte, Jeff W. M. WILEY‐VCH Verlag 2011 Angewandte Chemie Vol.123 No.10
<P><B><I>Doppeltes Abschirmen</I></B> von Inselzellen und multimodale Bildgebung mithilfe eines Kapsel‐in‐Kapsel‐Systems werden in der Zuschrift von T. Hyeon et al. auf S. 2365 ff. beschrieben. Die semipermeable äußere Alginatmembran unterbindet das Eindringen von Immunzellen und Antikörpern, lässt aber die ungehinderte Diffusion von Nährstoffen, Glucose, Sauerstoff und von den Inselzellen produziertem Insulin zu. Die innere Kapsel, die Eisenoxid‐ und Gold‐Bildgebungsagentien enthält, schützt die Zellen vor dem direkten Kontakt mit den Nanopartikeln.</P>
Kim, Taeho,Momin, Eric,Choi, Jonghoon,Yuan, Kristy,Zaidi, Hasan,Kim, Jaeyun,Park, Mihyun,Lee, Nohyun,McMahon, Michael T.,Quinones-Hinojosa, Alfredo,Bulte, Jeff W. M.,Hyeon, Taeghwan,Gilad, Assaf A. American Chemical Society 2011 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.133 No.9
<P/><P>Mesoporous silica-coated hollow manganese oxide (HMnO@mSiO<SUB>2</SUB>) nanoparticles were developed as a novel <I>T</I><SUB>1</SUB> magnetic resonance imaging (MRI) contrast agent. We hypothesized that the mesoporous structure of the nanoparticle shell enables optimal access of water molecules to the magnetic core, and consequently, an effective longitudinal (<I>R</I><SUB>1</SUB>) relaxation enhancement of water protons, which value was measured to be 0.99 (mM<SUP>−1</SUP>s<SUP>−1</SUP>) at 11.7 T. Adipose-derived mesenchymal stem cells (MSCs) were efficiently labeled using electroporation, with much shorter <I>T</I><SUB>1</SUB> values as compared to direct incubation without electroporation, which was also evidenced by signal enhancement on <I>T</I><SUB>1</SUB>-weighted MR images in vitro. Intracranial grafting of HMnO@mSiO<SUB>2</SUB>-labeled MSCs enabled serial MR monitoring of cell transplants over 14 days. These novel nanoparticles may extend the arsenal of currently available nanoparticle MR contrast agents by providing positive contrast on <I>T</I><SUB>1</SUB>-weighted images at high magnetic field strengths.</P>
Molecular Imaging of CXCL12 Promoter-driven HSV1-TK Reporter Gene Expression
Lina Alon,Dara L. Kraitchman,Michael Schär,Angel Cortez,Nirbhay N. Yadav,Rebecca Krimins,Peter V. Johnston,Michael T. McMahon,Peter C. M. van Zijl,Sridhar Nimmagadda,Martin G. Pomper,Jeff W. M. Bulte 한국생물공학회 2018 Biotechnology and Bioprocess Engineering Vol.23 No.2
The C-X-C motif chemokine 12 (CXCL12, SDF1a) and its receptor, CXCR4, play a fundamental role in several biological processes, including hematopoiesis, cardiogenesis, cancer progression, and stem cell migration. Noninvasive monitoring of CXCL12 is highly desirable for optimizing strategies that combine mobilization of therapeutic cells to combat cancer or to assist in cardiac tissue repair after myocardial infarction. Here, we report on an MRI reporter gene system for directly monitoring CXCL12 expression in vivo. Glioma cells and human adipose-derived stem cells (hADSC) were transduced with the herpes simplex virus type-1-thymidine kinase (HSV1- tk) reporter gene expressed under the CXCL12 promoter. HSV1-tk expression resulted in accumulation of the PET tracer [125I]FIAU in vitro and in vivo and induced cell death after ganciclovir treatment. Furthermore, the results show that conditional expression of the reporter gene can be induced by hypoxia in transduced cells. Transduced hADSC were incubated with the CEST MRI probe 5-methyl-5, 6- dihydrothymidine (5-MDHT) and transplanted into swine heart. Transplanted cells were clearly visible on Chemical Exchange Saturation Transfer (CEST) MRI using a 3T clinical scanner. Therefore, we conclude that it is possible to image CXCL12 expression with MRI in a large animal model, opening up a possible route to clinical translation.
Leading order analysis of neutrino induced dimuon events in the CHORUS experiment
CHORUS Collaboration,Kayis-Topaksu, A.,Onengut, G.,van Dantzig, R.,de Jong, M.,Oldeman, R.G.C.,Guler, M.,Kama, S.,Kose, U.,Serin-Zeyrek, M.,Tolun, P.,Catanesi, M.G.,Muciaccia, M.T.,Bulte, A.,Winter, K North Holland 2008 Nuclear Physics, Section B Vol. No.
We present a leading order QCD analysis of a sample of neutrino induced charged-current events with two muons in the final state originating in the lead-scintillating fibre calorimeter of the CHORUS detector. The results are based on a sample of 8910 neutrino and 430 antineutrino induced opposite-sign dimuon events collected during the exposure of the detector to the CERN Wide Band Neutrino Beam between 1995 and 1998. The analysis yields a value of the charm quark mass of m<SUB>c</SUB>=(1.26+/-0.16+/-0.09)GeV/c<SUP>2</SUP> and a value of the ratio of the strange to non-strange sea in the nucleon of κ=0.33+/-0.05+/-0.05, improving the results obtained in similar analyses by previous experiments.
Jeroen Lucas Kiers,Johannes Hendrikus Franciscus Bult 한국식품영양과학회 2021 Journal of medicinal food Vol.24 No.3
Poor joint health is a significant burden to society. Millions of people suffer from some form of joint-related disorder or disease, most often osteoarthritis (OA). It was hypothesized that chicken eggshell membrane (EM) is effective in the regeneration of cartilage and/or immunomodulation (oral tolerance), and as such relieves pain and stiffness in joints commonly affected in arthritis. We tested this hypothesis in a double-blind, placebo-controlled EM intervention study. Of 150 male and female volunteers, 40–75 years of age and diagnosed with knee OA, 75 were randomly assigned to the EM intervention group and 75 to the placebo group. During 12 weeks, subjects received a daily capsule containing either 300 mg of EM or a placebo. The main primary dependent variable consisted of self-reported pain ratings on a Numerical Rating Scale Pain (NRS-P) 6 weeks after study start. As secondary dependent variables served NRS-P scores collected after 12 weeks, and Knee injury and self-reported Osteoarthritis Outcome Scores (Knee injury and Osteoarthritis Outcome Scores [KOOS]). NRS-P scores decreased for both groups at approximately the same rate, but only EM relieved self-reported pain scores obtained with the KOOS questionnaire starting 1 week after initiation of treatment. This effect was significant for two of five KOOS category scores, that is, “Pain” and “Daily Life” functioning, aggregate pain, and functioning scores composed of complaint ratings for a wide variety of daily activities. These scores showed long-lasting improvement, and demonstrated that EM extract successfully reliefs knee OA pain and contributes to daily life functioning.