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Nuclear and Molecular Medicine

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https://www.readbyqxmd.com/read/29147012/piperidylmethyloxychalcone-improves-immune-mediated-acute-liver-failure-via-inhibiting-tak1-activity
#1
Sun Hong Park, Jeong-Ah Kwak, Sang-Hun Jung, Byeongwoo Ahn, Won-Jea Cho, Cheong-Yong Yun, Chang Seon Na, Bang Yeon Hwang, Jin Tae Hong, Sang-Bae Han, Youngsoo Kim
Mice deficient in the toll-like receptor (TLR) or the myeloid differentiation factor 88 (MyD88) are resistant to acute liver failure (ALF) with sudden death of hepatocytes. Chalcone derivatives from medicinal plants protect from hepatic damages including ALF, but their mechanisms remain to be clarified. Here, we focused on molecular basis of piperidylmethyloxychalcone (PMOC) in the treatment of TLR/MyD88-associated ALF. C57BL/6J mice were sensitized with D-galactosamine (GalN) and challenged with Escherichia coli lipopolysaccharide (LPS, TLR4 agonist) or oligodeoxynucleotide containing unmethylated CpG motif (CpG ODN, TLR9 agonist) for induction of ALF...
November 17, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29142404/chalepin-a-compound-from-ruta-angustifolia-l-pers-exhibits-cell-cycle-arrest-at-s-phase-suppresses-nuclear-factor-kappa-b-nf-%C3%AE%C2%BAb-pathway-signal-transducer-and-activation-of-transcription-3-stat3-phosphorylation-and-extrinsic-apoptotic-pathway-in-non-small-cell
#2
Jaime Stella Moses Richardson, Norhaniza Aminudin, Sri Nurestri Abd Malek
Background: Plants have been a major source of inspiration in developing novel drug compounds in the treatment of various diseases that afflict human beings worldwide. Ruta angustifolia L. Pers known locally as Garuda has been conventionally used for various medicinal purposes such as in the treatment of cancer. Objective: A dihydrofuranocoumarin named chalepin, which was isolated from the chloroform extract of the plant, was tested on its ability to inhibit molecular pathways of human lung carcinoma (A549) cells...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29135224/radiation-responsive-esculin-derived-molecular-gels-as-signal-enhancers-for-optical-imaging
#3
Julian R Silverman, Qize Zhang, Nabendu B Pramanik, Malick Samateh, Travis M Shaffer, Sai Sateesh Sagiri, Jan Grimm, George John
Recent interest in detecting visible photons that emanate from interactions of ionizing radiation with matter have spurred the development of multifunctional materials that amplify this optical signal from radiotracers. Tailored stimuli-responsive systems may be paired with diagnostic radionuclides to improving surgical guidance and aid in detecting therapeutic radionuclides otherwise difficult to image with conventional nuclear medicine approaches. Since light emanating from these interactions is typically low in intensity and blue-weighted (i...
November 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29132130/effect-of-huagantongluofang-a-chinese-traditional-medicine-in-hepatic-fibrogenesis-in-a-mouse-model-of-biliary-cirrhosis
#4
Ji Xuan, Wei Wen, Yong Wang, Feng Wang, Hua-Bing Xu, Mei Shao, Ya Yang, Yao-Zhou Tian
BACKGROUND: Biliary cirrhosis (BC) is a chronic cholestatic liver disease, in which hepatic fibrosis is an early symptom. This study aimed to identify the biological function and the therapeutic effect of a Chinese traditional medicine, HuaGanTongLuoFang (HGTLF), in a mouse model of BC. METHODS: The mice (n = 72) were randomly divided into a sham group (n =12) and BC group (n = 60). The animals in the BC group were then randomly divided into five groups (n = 12 in each) and treated with three different doses of HGTLF, ureodeoxycholic acid (UDCA), or normal saline (the model group)...
November 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29130901/quantification-of-fat-fraction-in-lumbar-vertebrae-correlation-with-age-and-implications-for-bone-marrow-dosimetry-in-molecular-radiotherapy
#5
Maikol Salas-Ramirez, Johannes Tran-Gia, Christian Kesenheimer, Andreas Max Weng, Aleksander Kosmala, Anke Heidemeier, Herbert Koestler, Michael Lassmann
Absorbed dose to active bone marrow is a predictor of hematological toxicity in molecular radiotherapy. Due to the complex composition of bone marrow tissue, the necessity to improve the personalized dosimetry has led to the application of non-conventional imaging methods in nuclear medicine. The aim of this study is to apply magnetic resonance imaging (MRI) for quantification of the fat fraction in lumbar vertebrae and to analyze its implications for bone marrow dosimetry. Methods First, a highly accelerated two-point Dixon MRI sequence for fat-water separation was validated in a 3T system against the magnetic resonance spectroscopy (MRS) gold standard...
November 13, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29108946/nuclear-ribosomal-dna-its-region-based-molecular-marker-to-distinguish-the-medicinal-plant-gmelina-arborea-roxb-ex-sm-from-its-substitutes-and-adulterants
#6
Jaganathan Manokar, Subramani Paranthaman Balasubramani, Padma Venkatasubramanian
Roots of Gmelina arborea (Gambhari) is a medicinally important raw drug traded in India. However, Gmelinaasiatica and Mallotus nudiflorus are also found in the raw drug markets as Gambhari. The current study aims to identify molecular markers based on the nuclear ribosomal DNA - ITS1 region to distinguish the authentic species from substitute/adulterants. The nuclear ribosomal internal transcribed spacer 1 (ITS1) was amplified to identify species-specific markers using universal primers. Based on the sequence of the ITS region, specific primers were designed for G...
November 3, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29106751/fast-na-k-pump-driven-steady-state-transcytolemmal-water-exchange-in-neuronal-tissue-a-study-of-rat-brain-cortical-cultures
#7
Ruiliang Bai, Charles S Springer, Dietmar Plenz, Peter J Basser
PURPOSE: Water homeostasis and transport play important roles in brain function (e.g., ion homeostasis, neuronal excitability, cell volume regulation, etc.). However, specific mechanisms of water transport across cell membranes in neuronal tissue have not been completely elaborated. METHODS: The kinetics of transcytolemmal water exchange were measured in neuronal tissue using simultaneous, real-time fluorescence and nuclear magnetic resonance (NMR) measurements of perfused, active brain organotypic cortical cultures...
November 6, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29097926/advanced-functional-tumor-imaging-and-precision-nuclear-medicine-enabled-by-digital-pet-technologies
#8
REVIEW
Chadwick L Wright, Katherine Binzel, Jun Zhang, Michael V Knopp
The purpose of this article is to provide a brief overview of the background, basic principles, technological evolution, clinical capabilities, and future directions for functional tumor imaging as PET evolves from the conventional photomultiplier tube-based platform into a fully digital detector acquisition platform. The recent introduction of solid-state digital photon counting PET detector is the latest evolution of clinical PET which enables faster time-of-flight timing resolution that leads to more precise localization of the annihilation events and further contributes to reduction in partial volume and thus makes high definition and ultrahigh definition PET imaging feasible with current standard acquisition procedures...
2017: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29091887/in-vitro-and-in-vivo-immunomodulatory-potential-of-pedicularis-longiflora-and-allium-carolinianum-in-alloxan-induced-diabetes-in-rats
#9
Mohd Iqbal Yatoo, Umesh Dimri, Arumugam Gopalakrishnan, Archana Saxena, Sarfaraz Ahmad Wani, Kuldeep Dhama
Pedicularis longiflora Rudolph (Orobanchaceae) and Allium carolinianum Linn (Alliaceae) are two important medicinal plants found in trans-Himalayan Changthang. The immunomodulatory potential of these plants has not been explored. In the present study, we evaluated the in vitro and in vivo immunomodulatory potential of P. longiflora and A. carolinianum in alloxan-induced diabetes in Wistar rats. The ethanol extracts of the aerial parts of P. longiflora and whole plant parts of A. carolinianum were used for studying the in vitro immunomodulatory activity using lymphocyte stimulation and cytokine release assays...
October 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29084238/doliroside-a-from-dolichos-falcata-klein-suppressing-amyloid-%C3%AE-protein-42-fibrillogenesis-an-insight-at-molecular-level
#10
Dongpu Li, Hongfei Yu, Qinxiong Lin, Yun Liu
A bioactive chemical constituent, doliroside A, from Chinese traditional herbal medicine Dolichos falcata Klein was isolated, purified and identified by 60% ethanol extraction, thin layer chromatography (TLC), high performance liquid chromatography (HPLC) and nuclear magnetic resonance (NMR) spectroscopy. Molecular interaction mechanism between doliroside and amyloid β42 protein was evaluated by thioflavin T fluorescence (ThT), circular dichroism (CD), atomic force microscope (AFM), and differential scanning calorimeter (DSC) from the aspects of kinetics, secondary structure, morphology, and thermodynamics, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/29075192/rumex-dentatus-inhibits-cell-proliferation-arrests-cell-cycle-and-induces-apoptosis-in-mda-mb-231-cells-through-suppression-of-the-nf-%C3%AE%C2%BAb-pathway
#11
Riffat Batool, Ejaz Aziz, Benny K-H Tan, Tariq Mahmood
Background:Rumex dentatus, commonly known as tooth docked, is widely used in traditional system of medicines. Although it is well reported for its biological activities and medicinal value, only few studies have been carried out to assess its anticancer potential. Purpose: This study seeks to evaluate the anticancer activity of leaf extracts of R. dentatus against breast cancer MDA-MB-231 cell line, a triple negative human breast cancer cell line with invasive properties and to identify the molecular targets underlying its mechanism of action...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29067444/anti%C3%A2-inflammatory-effects-on-murine-macrophages-of-ethanol-extracts-of-lygodium-japonicum-spores-via-inhibition-of-nf%C3%A2-%C3%AE%C2%BAb-and-p38
#12
Young-Chang Cho, Ba Reum Kim, Hien Thi Thu Le, Sayeon Cho
The spores of Lygodium japonicum (Thunb.) Sw. (L. japonicum) have been used in traditional Chinese medicine for the treatment of various inflammatory diseases. However, the molecular mechanisms underlying their anti‑inflammatory effects have yet to be elucidated. In the present study, we investigated the anti‑inflammatory effects of ethanol extracts of L. japonicum spores (ELJ) by measuring the production of inflammatory mediators, and explored the molecular mechanisms underlying the effects of ELJ in murine macrophages in vitro using immunoblotting analyses...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29042793/theranostics-in-nuclear-medicine-practice
#13
REVIEW
Anna Yordanova, Elisabeth Eppard, Stefan Kürpig, Ralph A Bundschuh, Stefan Schönberger, Maria Gonzalez-Carmona, Georg Feldmann, Hojjat Ahmadzadehfar, Markus Essler
The importance of personalized medicine has been growing, mainly due to a more urgent need to avoid unnecessary and expensive treatments. In nuclear medicine, the theranostic approach is an established tool for specific molecular targeting, both for diagnostics and therapy. The visualization of potential targets can help predict if a patient will benefit from a particular treatment. Thanks to the quick development of radiopharmaceuticals and diagnostic techniques, the use of theranostic agents has been continually increasing...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29039520/concentration%C3%A2-dependent-effects-of-paeoniflorin-on-proliferation-and-apoptosis-of-vascular-smooth-muscle-cells
#14
Yanan Guo, Yintao Zhao, Ling Li, Xiaoyun Wei, Pingjun Gao, Yanqiang Zhou, Yuan Liu, Haibo Yang
Vascular smooth muscle cells (VSMCs) are an important component of arterial walls, and their dysfunction may serve an important role in the development of cardiovascular diseases, including atherosclerosis and restenosis. Paeoniflorin (PF) is a principal component of the commonly used traditional Chinese medicine, peonies. To the best of our knowledge, the effects of PF on apoptosis and proliferation of VSMCs and its underlying molecular mechanisms have not been widely reported. Therefore, the present study was designed to investigated this phenomenon...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29025982/appropriate-use-criteria-for-somatostatin-receptor-pet-imaging-in-neuroendocrine-tumors
#15
Thomas A Hope, Emily Bergsland, Murat Fani Bozkurt, Michael M Graham, Anthony P Heaney, Ken Herrmann, James R Howe, Matthew H Kulke, Pamela L Kunz, Josh Mailman, Lawrence May, David C Metz, Corina Millo, Sue O'Dorisio, Diane L Reidy-Lagunes, Michael C Soulen, Jonathan R Strosberg
Somatostatin receptor positron emission tomography (SSTR-PET) is an imaging modality for patients with neuroendocrine tumors (NETs) that has demonstrated a significant improvement over conventional imaging (CI). SSTR-PET should replace In-111 pentetreotide scintigraphy (OctreoScan) in all indications in which SSTR scintigraphy is currently being used. These appropriate use criteria (AUC) are intended to aid referring medical practitioners in the appropriate use of SSTR-PET for imaging of patients with NETs, and the indications were evaluated in well-differentiated NETs...
October 12, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29025981/how-should-fda-review-diagnostic-radiopharmaceuticals
#16
Carol Silber Marcus
The purpose of this article is to reconsider the manner in which the U.S. Food and Drug Administration (FDA) reviews diagnostic radiopharmaceuticals. Mass characteristics of several common non-radioactive drugs and a number of diagnostic radiopharmaceuticals are considered. A history of the regulation of radiopharmaceuticals is presented. Conclusion: The Society of Nuclear Medicine and Molecular Imaging (SNMMI) and the American College of Nuclear Medicine (ACNM) should choose the membership of a Radiopharmaceutical Advisory Committee (RAC), and the FDA should contract with them to do so...
October 12, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29025377/18f-fdg-pet-ct-in-breast-cancer-evidence-based-recommendations-in-initial-staging
#17
REVIEW
Ana Paula Caresia Aroztegui, Ana María García Vicente, Soledad Alvarez Ruiz, Roberto Carlos Delgado Bolton, Javier Orcajo Rincon, Jose Ramon Garcia Garzon, Maria de Arcocha Torres, Maria Jose Garcia-Velloso
Current guidelines do not systematically recommend 18F-FDG PET/CT for breast cancer staging; and the recommendations and level of evidence supporting its use in different groups of patients vary among guidelines. This review summarizes the evidence about the role of 18F-FDG PET/CT in breast cancer staging and the therapeutic and prognostic impact accumulated in the last decade. Other related aspects, such as the association of metabolic information with biology and prognosis are considered and evidence-based recommendations for the use of 18F-FDG PET/CT in breast cancer staging are offered...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29025293/berberine-induces-apoptotic-cell-death-via-activation-of-caspase-3-and-8-in-hl-60-human-leukemia-cells-nuclear-localization-and-structure-activity-relationships
#18
Shinya Okubo, Takuhiro Uto, Aya Goto, Hiroyuki Tanaka, Tsuyoshi Nishioku, Katsushi Yamada, Yukihiro Shoyama
Berberine (BBR), an isoquinoline alkaloid, is a well-known bioactive compound contained in medicinal plants used in traditional and folk medicines. In this study, we investigated the subcellular localization and the apoptotic mechanisms of BBR were elucidated. First, we confirmed the incorporation of BBR into the cell visually. BBR showed antiproliferative activity and promptly localized to the nucleus from 5[Formula: see text]min to 15[Formula: see text]min after BBR treatment in HL-60 human promyelocytic leukemia cells...
2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29021688/role-of-ginsenosides-the-main-active-components-of-panax-ginseng-in-inflammatory-responses-and-diseases
#19
REVIEW
Ji Hye Kim, Young-Su Yi, Mi-Yeon Kim, Jae Youl Cho
Panax ginseng is one of the most universally used herbal medicines in Asian and Western countries. Most of the biological activities of ginseng are derived from its main constituents, ginsenosides. Interestingly, a number of studies have reported that ginsenosides and their metabolites/derivatives-including ginsenoside (G)-Rb1, compound K, G-Rb2, G-Rd, G-Re, G-Rg1, G-Rg3, G-Rg5, G-Rh1, G-Rh2, and G-Rp1-exert anti-inflammatory activities in inflammatory responses by suppressing the production of proinflammatory cytokines and regulating the activities of inflammatory signaling pathways, such as nuclear factor-κB and activator protein-1...
October 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/29021498/chinese-journal-of-nuclear-medicine-and-molecular-imaging-volume-37-number-9-september-25-2017
#20
(no author information available yet)
No abstract text is available yet for this article.
2017: Kaku Igaku. the Japanese Journal of Nuclear Medicine
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