keyword
MENU ▼
Read by QxMD icon Read
search

Nuclear and Molecular Medicine

keyword
https://www.readbyqxmd.com/read/28941866/-68-ga-psma-pet-ct-in-prostate-cancer
#1
J R García Garzón, M de Arcocha Torres, R Delgado-Bolton, F Ceci, S Alvarez Ruiz, J Orcajo Rincón, A P Caresia Aróztegui, M J García Velloso, A M García Vicente
Positron emission tomography/computed tomography (PET/CT) with (68)Ga-PSMA is a non-invasive diagnostic technique to image prostate cancer with increased prostate-specific membrane antigen (PSMA) expression. PSMA is a transmembrane protein present in all prostatic tissues. Increased PSMA expression is seen in several malignancies, although prostate cancer is the tumour where it presents higher concentrations. Almost all prostate adenocarcinomas show PSMA expression in most of lesions, primary and metastatic...
September 20, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28933478/natural-product-modulators-of-human-sensations-and-mood-molecular-mechanisms-and-therapeutic-potential
#2
REVIEW
Tomáš Pluskal, Jing-Ke Weng
Humans perceive physical information about the surrounding environment through their senses. This physical information is registered by a collection of highly evolved and finely tuned molecular sensory receptors. A multitude of bioactive, structurally diverse ligands have evolved in nature that bind these molecular receptors. The complex, dynamic interactions between the ligands and the receptors lead to changes in our sensory perception or mood. Here, we review our current knowledge of natural products and their derived analogues that interact specifically with human G protein-coupled receptors, ion channels, and nuclear hormone receptors to modulate the sensations of taste, smell, temperature, pain, and itch, as well as mood and its associated behaviour...
September 21, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28931781/chinese-journal-of-nuclear-medicine-and-molecular-imaging-volume-37-number-8-august-25-2017
#3
(no author information available yet)
No abstract text is available yet for this article.
2017: Kaku Igaku. the Japanese Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28928800/weikangning-therapy-in-functional-dyspepsia-and-the-protective-role-of-nrf2
#4
Yujuan Chang, Wei Wei, Li Tong, Yanjun Liu, Aimin Zhou, Jiande Chen, Ruhan Wei, Ping Zhang, Xiaolan Su
Functional dyspepsia (FD) is a non-organic gastrointestinal disorder that has a marked negative impact on quality of life. Compared with conventional pharmacological therapies, the traditional Chinese medicine weikangning (WKN) is a safe and effective treatment for FD. The present study aimed to determine the molecular mechanisms underlying the efficacy of WKN. The effect of different concentrations of WKN on the proliferation of the human gastric mucosal epithelial cell line GES-1 was assessed. The optimal WKN concentration to promote cell proliferation was determined, and this concentration was used to examine the effect of WKN compared with a domperidone-treated positive control group on the antioxidant capacity of GES-1 cells...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28927752/the-iaea-radiotracer-biodistribution-template-a-community-resource-for-supporting-the-standardization-and-reporting-of-radionuclide-pre-dosimetry-data
#5
Adam Leon Kesner, Gian Luca Poli, Seval Beykan, Michael Lassmann
Radionuclide absorbed-dose dosimetry is an active area of development and has the potential to positively impact molecular radiotherapies. At present, many of the operations required to perform dosimetry calculations are unstandardized and unestablished. While the current methodology allows reasonable dosimetry estimates to be derived and published, it can be difficult to understand, and reproduce, each others' work. To help alleviate this we have identified the collection of biodistribution information as a key step in all internal dosimetry calculations, and present a template that can be used to standardize its documentation and reporting...
September 15, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28926584/transcriptome-analysis-reveals-molecular-anthelmintic-effects-of-procyanidins-in-c-elegans
#6
Verena Spiegler, Andreas Hensel, Jochen Seggewiß, Milena Lubisch, Eva Liebau
Worldwide, more than 1 billion people are affected by infestations with soil-transmitted helminths and also in veterinary medicine helminthiases are a severe threat to livestock due to emerging resistances against the common anthelmintics. Proanthocyanidins have been increasingly investigated for their anthelmintic properties, however, except for an interaction with certain proteins of the nematodes, not much is known about their mode of action. To investigate the anthelmintic activity on a molecular level, a transcriptome analysis was performed in Caenorhabditis elegans after treatment with purified and fully characterized oligomeric procyanidins (OPC)...
2017: PloS One
https://www.readbyqxmd.com/read/28918355/gallium-iii-chelates-of-mixed-phosphonate-carboxylate-triazamacrocyclic-ligands-relevant-to-nuclear-medicine-structural-stability-and-in-vivo-studies
#7
Maria I M Prata, João P André, Zoltán Kovács, Anett I Takács, Gyula Tircsó, Imre Tóth, Carlos F G C Geraldes
Three triaza macrocyclic ligands, H6NOTP (1,4,7-triazacyclononane-N,N',N″-trimethylene phosphonic acid), H4NO2AP (1,4,7-triazacyclononane-N-methylenephosphonic acid-N',N″-dimethylenecarboxylic acid), and H5NOA2P (1,4,7-triazacyclononane-N,N'-bis(methylenephosphonic acid)-N″-methylene carboxylic acid), and their gallium(III) chelates were studied in view of their potential interest as scintigraphic and PET (Positron Emission Tomography) imaging agents. A (1)H, (31)P and (71)Ga multinuclear NMR study gave an insight on the structure, internal dynamics and stability of the chelates in aqueous solution...
September 1, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28914193/chalcone-derivatives-anti-inflammatory-potential-and-molecular-targets-perspectives
#8
Debarshi Kar Mahapatra, Sanjay Kumar Bharti, Vivek Asati
Chalcone or (E)-1,3-diphenyl-2-propene-1-one scaffold has gained considerable scientific interest in medicinal chemistry owing to its simple chemistry, ease in synthesizing a variety of derivatives and exhibiting a broad range of promising pharmacological activities by modulating several molecular targets. A number of natural and (semi-) synthetic chalcone derivatives have demonstrated admirable anti-inflammatory activity due to their inhibitory potential against various therapeutic targets like cyclooxygenase (COX), lipooxygenase (LOX), interleukins (IL), prostaglandins (PGs), nitric oxide synthase (NOS), leukotriene D4 (LTD4), nuclear factor-κB (NF-κB), intracellular cell adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), monocyte chemoattractant protein-1 (MCP-1) and TLR4/MD-2, etc...
September 14, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28912151/in-vitro-evaluation-of-molecular-tumor-targets-in-nuclear-medicine-immunohistochemistry-is-one-option-but-under-which-conditions
#9
Jean Claude Reubi
The identification of new molecular targets for diagnostic and therapeutic applications using in vitro methods is an important challenge in nuclear medicine. One of the methods is immunohistochemistry, increasingly popular due to its easy-to-perform procedure. This review presents the case for conducting receptor immunohistochemistry to evaluate potential molecular targets in human tumor tissue sections. The focus is on the immunohistochemistry of G-protein-coupled receptors (GPCR), one of the largest families of cell surface proteins, representing a major class of drug targets and thus playing an important role in nuclear medicine...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28911214/growth-regulation-by-estrogen-in-breast-cancer-1-greb1-is-a-novel-progesterone-responsive-gene-required-for-human-endometrial-stromal-decidualization
#10
Alison J Camden, Maria M Szwarc, Sangappa B Chadchan, Francesco J DeMayo, Bert W O'Malley, John P Lydon, Ramakrishna Kommagani
STUDY QUESTION: Is Growth Regulation by Estrogen in Breast Cancer 1 (GREB1) required for progesterone-driven endometrial stromal cell decidualization? SUMMARY ANSWER: GREB1 is a novel progesterone-responsive gene required for progesterone-driven human endometrial stromal cell (HESC) decidualization. WHAT IS KNOWN ALREADY: Successful establishment of pregnancy requires HESCs to transform from fibroblastic to epithelioid cells in a process called decidualization...
September 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28895180/recent-progress-using-the-staudinger-ligation-for-radiolabeling-applications
#11
Constantin Mamat, Matthew Gott, Jörg Steinbach
The increasing application of positron emission tomography (PET) and single photon emission computer tomography (SPECT) in radiopharmacy and nuclear medicine has stimulated the development of a multitude of novel and versatile bioorthogonal conjugation techniques. Currently, there is particular interest in radiolabeling biologically active, high molecular weight compounds like peptides, proteins or antibodies, but also for the labeling of small organic compounds. An enormous challenge in radiolabeling these biologically active molecules is that the introduction of radiohalogens like fluorine-18 as well as various radiometals proceeds under harsh conditions, which could destroy the biomolecule...
September 11, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28880234/typhonium-giganteum-lectin-exerts-a-pro-inflammatory-effect-on-raw-264-7-via-ros-and-the-nf-%C3%AE%C2%BAb-signaling-pathway
#12
Wei Wang, Hao Wu, Hongli Yu, Xingde Zhang, Guojing Cui, Kuilong Wang, Shanhu Mao, Yaozong Pan
Typhonii rhizoma, a widely used herb in traditional Chinese medicine, has acute irritating toxicity related to Typhonium giganteum lectin (TGL). TGL exhibits acute inflammatory effects, but the underlying molecular mechanisms are largely unknown. This paper is designed to assess the pro-inflammatory response of TGL on RAW 264.7 cells. RAW 264.7 treated with 6.25, 12.5, 25, and 50 µg/mL TGL showed elevated levels of inflammatory factors (TNF-α, IL-1β) and of p-IκB and p-p65, all dose-dependent, indicating that TGL had a substantial inflammatory effect and mobilized the nuclear factor-κB (NF-κB) pathway...
September 7, 2017: Toxins
https://www.readbyqxmd.com/read/28867692/chinese-journal-of-nuclear-medicine-and-molecular-imaging-volume-37-number-7-july-25-2017
#13
(no author information available yet)
No abstract text is available yet for this article.
2017: Kaku Igaku. the Japanese Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28865367/the-role-of-radionuclide-probes-for-monitoring-anti-tumor-drugs-efficacy-a-brief-review
#14
REVIEW
Renata Salgado Fernandes, Carolina de Aguiar Ferreira, Daniel Cristian Ferreira Soares, Anna Margherita Maffione, Danyelle M Townsend, Domenico Rubello, André Luís Branco de Barros
Despite recent advances in the development of new therapeutic agents and diagnostic imaging modalities, cancer is still one of the main causes of death worldwide. A better understanding of the molecular signature of cancer has promoted the development of a new generation of anti-cancer drugs and diagnostic agents that specifically target molecular components such as genes, ligands, receptors and signaling pathways. However, intrinsic heterogeneity of tumors has hampered the overall success of target therapies even among patients with similar tumor types but unpredictable different responses to therapy...
August 30, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28864620/individualized-dosimetry-for-theranostics-necessary-nice-to-have-or-counterproductive
#15
Uta Eberlein, Marta Cremonesi, Michael Lassmann
In 2005, the term theragnostics (theranostics) was introduced for describing the use of imaging for therapy planning in radiation oncology. In nuclear medicine, this expression describes the use of tracers for predicting the absorbed doses in molecular radiotherapy and, thus, the safety and efficacy of a treatment. At present, the most successful groups of isotopes for this purpose are (123)I/(124)I/(131)I, (68)Ga/(177)Lu, and (111)In/(86)Y/(90)Y. The purpose of this review is to summarize available data on the dosimetry and dose-response relationships of several theranostic compounds, with a special focus on radioiodine therapy for differentiated thyroid cancer and peptide receptor radionuclide therapy...
September 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28864607/glu-ureido-based-inhibitors-of-prostate-specific-membrane-antigen-lessons-learned-during-the-development-of-a-novel-class-of-low-molecular-weight-theranostic-radiotracers
#16
Klaus Kopka, Martina Benešová, Cyril Bařinka, Uwe Haberkorn, John Babich
In recent years, several radioligands targeting prostate-specific membrane antigen (PSMA) have been clinically introduced as a new class of theranostic radiopharmaceuticals for the treatment of prostate cancer (PC). In the second decade of the 21(st) century, a new era in nuclear medicine was initiated by the clinical introduction of small-molecule PSMA inhibitor radioligands, 40 y after the clinical introduction of (18)F-FDG. Because of the high incidence and mortality of PC, the new PSMA radioligands have already had a remarkable impact on the clinical management of PC...
September 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28856890/cyclic-dipeptide-based-ambidextrous-supergelators-minimalistic-rational-design-structure-gelation-studies-and-in-situ-hydrogelation
#17
Shivaprasad Manchineella, N Arul Murugan, Thimmaiah Govindaraju
Ambidextrous supergelators are developed through structure-gelation screening of rationally designed cyclic dipeptides (CDPs). The organo- and hydrogels of CDPs were thoroughly characterized by their minimal gelation concentration (MGC) for organic and aqueous solvents, thermal stability (Tg), and viscoelastic properties. Intermolecular hydrogen bonding, the major driving force for gelation was evaluated using temperature-dependent nuclear magnetic resonance (NMR) spectroscopy. The contribution of attractive van der Waals interaction of tBoc group in driving CDP gelation was ascertained using β-cyclodextrin (β-CD)-adamantane carboxylic acid (AC)-based host-guest gelation and (1)H NMR studies...
September 14, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28847144/association-of-activation-of-induced-cox-2-inos-and-cytokines-with-nf-kappa-b-depression-by-taiwan-wild-grape-ethanolic-extract-in-mice
#18
Ching-Wen Chang, Yi-Han Chen, Yu-Chin Lin, Wen-Huang Peng
Taiwan wild grape (Vitis thunbergii var. taiwaniana; VTT) is an important traditional herbal medicine used to treat muscle injuries and acute and chronic pain of the ligaments. Information on its bioactivity and the underlying mechanisms, which have not been elucidated thus far, is needed to demonstrate its value for pharmacological and clinical use. This study presents evidence to clarify the antinociceptive and anti-inflammatory activities of an ethanolic extract of VTT stem (VTTEtOH) and the possible molecular mechanisms involved in such biactivities...
August 31, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28842617/simultaneous-gene-delivery-and-tracking-through-preparation-of-photo-luminescent-nanoparticles-based-on-graphene-quantum-dots-and-chimeric-peptides
#19
Soroush Moasses Ghafary, Maryam Nikkhah, Shadie Hatamie, Saman Hosseinkhani
Designing suitable nano-carriers for simultaneous gene delivery and tracking is in the research priorities of the molecular medicine. Non-toxic graphene quantum dots (GQDs) with two different (green and red) emission colors are synthesized by Hummer's method and characterized by UV-Vis, Photoluminescence (PL), Fourier Transform Infrared (FTIR) and Raman spectroscopies, Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The GQDs are conjugated with MPG-2H1 chimeric peptide and plasmid DNA (pDNA) by non-covalent interactions...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28841180/radiolabeled-dendrimers-for-nuclear-medicine-applications
#20
REVIEW
Lingzhou Zhao, Meilin Zhu, Yujie Li, Yan Xing, Jinhua Zhao
Recent advances in nuclear medicine have explored nanoscale carriers for targeted delivery of various radionuclides in specific manners to improve the effect of diagnosis and therapy of diseases. Due to the unique molecular architecture allowing facile attachment of targeting ligands and radionuclides, dendrimers provide versatile platforms in this filed to build abundant multifunctional radiolabeled nanoparticles for nuclear medicine applications. This review gives special focus to recent advances in dendrimer-based nuclear medicine agents for the imaging and treatment of cancer, cardiovascular and other diseases...
August 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
keyword
keyword
66412
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"