keyword
MENU ▼
Read by QxMD icon Read
search

Molecular medical imaging

keyword
https://www.readbyqxmd.com/read/28453956/molecular-imaging-of-activated-platelets-via-antibody-targeted-ultra-small-iron-oxide-nanoparticles-displaying-unique-dual-mri-contrast
#1
Hang T Ta, Zhen Li, Christoph E Hagemeyer, Gary Cowin, Shaohua Zhang, Jathushan Palasubramaniam, Karen Alt, Xiaowei Wang, Karlheinz Peter, Andrew K Whittaker
Magnetic resonance imaging (MRI) is a powerful and indispensable tool in medical research, clinical diagnosis, and patient care due to its high spatial resolution and non-limited penetration depth. The simultaneous use of positive and negative MRI imaging that employs the same contrast agents will significantly improve detection accuracy. Here we report the development of functional multimodal iron oxide nanoparticles for targeted MRI of atherothrombosis using a combination of chemical and biological conjugation techniques...
April 22, 2017: Biomaterials
https://www.readbyqxmd.com/read/28441473/assembly-of-macrocycle-dye-derivatives-into-particles-for-fluorescence-and-photoacoustic-applications
#2
Hoang Dung Lu, Tristan L Lim, Shoshana Javitt, Andrew Heinmiller, Robert K Prud'homme
Optical imaging is a rapidly progressing medical technique that can benefit from the development of new and improved optical imaging agents suitable for use in vivo. However, the molecular rules detailing what optical agents can be processed and encapsulated into in vivo presentable forms are not known. We here present the screening of series of highly hydrophobic porphyrin, phthalocyanine, and naphthalocyanine dye macrocycles through a self-assembling Flash NanoPrecipitation process to form a series of water dispersible dye nanoparticles (NPs)...
April 25, 2017: ACS Combinatorial Science
https://www.readbyqxmd.com/read/28433665/advancing-the-science-of-myocardial-recovery-with-mechanical-circulatory-support-a-working-group-of-the-national-heart-lung-and-blood-institute
#3
Stavros G Drakos, Francis D Pagani, Martha S Lundberg, J Timothy Baldwin
The medical burden of heart failure (HF) has spurred interest in clinicians and scientists to develop therapies to restore the function of a failing heart. To advance this agenda, the National Heart Lung Blood Institute (NHLBI) convened a Working Group of experts on June 2-3, 2016 in Bethesda Maryland to develop recommendations for the NHLBI aimed at advancing the science of cardiac recovery in the setting of mechanical circulatory support (MCS). MSC devices effectively reduce volume and pressure overload that drives the cycle of progressive myocardial dysfunction, thereby triggering structural and functional reverse remodeling...
April 19, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28421339/small-bowel-adenocarcinoma-complicating-crohn-s-disease-a-single-centre-experience-emphasizing-the-importance-of-screening-for-dysplasia
#4
Chloé Grolleau, Nicolas M Pote, Nathalie S Guedj, Magaly Zappa, Nathalie Theou-Anton, Yoram Bouhnik, Yves Panis, Dominique L Cazals-Hatem
Small bowel adenocarcinoma (SBA) complicating Crohn's disease (CD) is rare and generally found incidentally on surgical specimens. We report our experience in CD-associated SBA observed this last decade in a tertiary referral centre in order to update its incidence, clinical presentation and pathological features. All SBAs diagnosed in patients who underwent surgery for CD between 2006 and 2016 were retrospectively included. Clinico-pathological characteristics were reviewed, and follow-up was updated. SBA was diagnosed in 9 (1...
April 18, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28411702/outcomes-of-iliac-vein-stents-after-pregnancy
#5
Mohini Dasari, Efthimios Avgerinos, Seshadri Raju, Robert Tahara, Rabih A Chaer
OBJECTIVE: Stenting is the first-line treatment for obstructive iliocaval lesions when intervention is required. The aim of the study was to evaluate iliocaval stent patency during and after pregnancy in women of reproductive age who became pregnant after stent placement. METHODS: Female patients of reproductive age (18-45 years old) who underwent iliocaval stenting between May 2007 and March 2014 were identified from a three-center prospectively maintained database...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28399162/hydrophobic-pinning-with-copper-nanowhiskers-leads-to-bactericidal-properties
#6
Ajay Vikram Singh, Semanur Baylan, Byung-Wook Park, Gunther Richter, Metin Sitti
The considerable morbidity associated with hospitalized patients and clinics in developed countries due to biofilm formation on biomedical implants and surgical instruments is a heavy economic burden. An alternative to chemically treated surfaces for bactericidal activity started emerging from micro/nanoscale topographical cues in the last decade. Here, we demonstrate a putative antibacterial surface using copper nanowhiskers deposited by molecular beam epitaxy. Furthermore, the control of biological response is based on hydrophobic pinning of water droplets in the Wenzel regime, causing mechanical injury and cell death...
2017: PloS One
https://www.readbyqxmd.com/read/28391026/radiopharmaceuticals-in-the-elderly-cancer-patient-practical-considerations-with-a-focus-on-prostate-cancer-therapy-a-position-paper-from-the-international-society-of-geriatric-oncology-task-force
#7
John O Prior, Silke Gillessen, Manfred Wirth, William Dale, Matti Aapro, Wim J G Oyen
Molecular imaging using radiopharmaceuticals has a clear role in visualising the presence and extent of tumour at diagnosis and monitoring response to therapy. Such imaging provides prognostic and predictive information relevant to management, e.g. by quantifying active tumour mass using positron emission tomography/computed tomography (PET/CT). As these techniques require only pharmacologically inactive doses, age and potential frailty are generally not important. However, this may be different for therapy involving radionuclides because the radiation can impact normal bodily function (e...
April 6, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28378292/tracking-dendritic-cell-migration-into-lymph-nodes-by-using-a-novel-pet-probe-18-f-tetrafluoroborate-for-sodium-iodide-symporter
#8
Sang Bong Lee, Ho Won Lee, Hongje Lee, Yong Hyun Jeon, Sang-Woo Lee, Byeong-Cheol Ahn, Jaetae Lee, Shin Young Jeong
BACKGROUND: Recently, (18)F-tetrafluoroborate (TFB) was used as a substrate for the human sodium/iodide symporter (hNIS) reporter gene. This study evaluated the feasibility of performing molecular-genetic imaging by using the new radiotracer ((18)F-TFB) for the hNIS gene, to track dendritic cell (DC) migration in live mice. A murine dendritic cell line (DC2.4) co-expressing the hNIS and effluc genes (DC/NF) was established. To confirm the functional cellular expression of both effluc and NIS in the inoculated DC/NF cells by bio-medical imaging, combined bioluminescence imaging (BLI) and (18)F-TFB positron emission tomography/computed tomography (PET/CT) imaging was performed after intramuscular injection with parental DCs and DC/NF cells...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28361239/implications-of-molecular-diversity-of-chitin-and-its-derivatives
#9
REVIEW
Faez Iqbal Khan, Safikur Rahman, Aarfa Queen, Shahzaib Ahamad, Sher Ali, Jihoe Kim, Md Imtaiyaz Hassan
Chitin is a long unbranched polysaccharide, made up of β-1,4-linked N-acetylglucosamine which forms crystalline fiber-like structure. It is present in the fungal cell walls, insect and crustacean cuticles, nematode eggshells, and protozoa cyst. We provide a critical appraisal on the chemical modifications of chitin and its derivatives in the context of their improved efficacy in medical applications without any side effect. Recent advancement in nanobiotechnology has helped to synthesize several chitin derivatives having significant biological applications...
May 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28360997/imaging-biomarkers-in-parkinson-s-disease-and-parkinsonian-syndromes-current-and-emerging-concepts
#10
REVIEW
Usman Saeed, Jordana Compagnone, Richard I Aviv, Antonio P Strafella, Sandra E Black, Anthony E Lang, Mario Masellis
Two centuries ago in 1817, James Parkinson provided the first medical description of Parkinson's disease, later refined by Jean-Martin Charcot in the mid-to-late 19th century to include the atypical parkinsonian variants (also termed, Parkinson-plus syndromes). Today, Parkinson's disease represents the second most common neurodegenerative disorder with an estimated global prevalence of over 10 million. Conversely, atypical parkinsonian syndromes encompass a group of relatively heterogeneous disorders that may share some clinical features with Parkinson's disease, but are uncommon distinct clinicopathological diseases...
2017: Translational Neurodegeneration
https://www.readbyqxmd.com/read/28359847/a%C3%AE-propagation-and-strains-implications-for-the-phenotypic-diversity-in-alzheimer-s-disease
#11
Carlo Condello, Jan Stöhr
The progressive nature of Alzheimer's disease (AD) is thought to occur, at least in part, by the self-replication and spreading of Aβ and Tau aggregates through a prion mechanism. Evidence now exists that structural variants of Aβ prions can propagate their distinct conformations through template-directed folding of naïve Aβ peptides. This notion implicates that the first self-propagating Aβ assembly to emerge in the brain dictates the conformation, anatomical spread and pace of subsequently formed deposits...
March 27, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28337405/tailored-algorithms-for-hepatocellular-carcinoma-surveillance-is-one-size-fits-all-strategy-outdated
#12
Nicolas Goossens, C Billie Bian, Yujin Hoshida
PURPOSE OF REVIEW: Current clinical practice guidelines recommend regular hepatocellular carcinoma (HCC) surveillance with biannual ultrasound with or without serum alpha-fetoprotein uniformly applied to all patients with cirrhosis. However, clinical implementation of this one-size-fits-all strategy has been challenging as evidenced by very low application rate below 20% due to various reasons, including suboptimal performance of the surveillance modalities. RECENT FINDINGS: Newly emerging imaging techniques such as abbreviated MRI (AMRI) and molecular HCC risk biomarkers have increasingly become available for clinical evaluation and implementation...
March 2017: Current Hepatology Reports
https://www.readbyqxmd.com/read/28331134/significance-and-value-of-endomyocardial-biopsy-based-on-our-own-experience
#13
REVIEW
Hatsue Ishibashi-Ueda, Taka-Aki Matsuyama, Keiko Ohta-Ogo, Yoshihiko Ikeda
Endomyocardial biopsy (EMB) has been established in parallel with the development of percutaneous catheter technology for the diagnosis of cardiac diseases. It was developed in the early 1960 s in Japan by Drs. Konno, Sakakibara and Sekiguchi of Tokyo Women's Medical University. EMB is a valuable and useful, but invasive, modality for making a definite diagnosis in diseases such as myocarditis and secondary cardiomyopathies, which are often difficult to diagnose by imaging modality alone. In the field of heart transplantation, the histology of EMB helps monitor rejection to allografts...
March 24, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28319221/fluorescent-chemical-probes-for-accurate-tumor-diagnosis-and-targeting-therapy
#14
REVIEW
Min Gao, Fabiao Yu, Changjun Lv, Jaebum Choo, Lingxin Chen
Surgical resection of solid tumors is currently the gold standard and preferred therapeutic strategy for cancer. Chemotherapy drugs also make a significant contribution by inhibiting the rapid growth of tumor cells and these two approaches are often combined to enhance treatment efficacy. However, surgery and chemotherapy inevitably lead to severe side effects and high systemic toxicity, which in turn results in poor prognosis. Precision medicine has promoted the development of treatment modalities that are developed to specifically target and kill tumor cells...
April 18, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28317279/the-role-of-advanced-echocardiography-and-cardiovascular-magnetic-resonance-in-the-assessment-of-myocardial-function-in-marfan-syndrome-an-update
#15
REVIEW
Anatoli Kiotsekoglou, James C Moggridge, Anne H Child, Peter Rask
Cardiovascular assessment of patients with Marfan syndrome has normally focused on the aortic root and vascular manifestations of the disease due to the high risk of aortic dissection. Although primary myocardial impairment has long been suspected in these patients, the evidence has been controversial. Advanced echocardiography and cardiovascular magnetic resonance imaging have proven to be effective, accurate, and more sensitive in the detection of subtle cardiac dysfunction. The application of these techniques to Marfan syndrome over the last 10 years has made significant progress in demonstrating the presence of primary myocardial impairment in these patients, but further work is still required to obtain confirmatory molecular, pathophysiological, and prognostic clinical data...
March 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28301228/the-evolving-classification-of-pulmonary-hypertension
#16
Michelle Foshat, Nahal Boroumand
CONTEXT: - An explosion of information on pulmonary hypertension has occurred during the past few decades. The perception of this disease has shifted from purely clinical to incorporate new knowledge of the underlying pathology. This transfer has occurred in light of advancements in pathophysiology, histology, and molecular medical diagnostics. OBJECTIVES: - To update readers about the evolving understanding of the etiology and pathogenesis of pulmonary hypertension and to demonstrate how pathology has shaped the current classification...
March 16, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28289280/biochemical-physiological-and-clinical-effects-of-l-methylfolate-in-schizophrenia-a-randomized-controlled-trial
#17
J L Roffman, L J Petruzzi, A S Tanner, H E Brown, H Eryilmaz, N F Ho, M Giegold, N J Silverstein, T Bottiglieri, D S Manoach, J W Smoller, D C Henderson, D C Goff
Folic acid supplementation confers modest benefit in schizophrenia, but its effectiveness is influenced by common genetic variants in the folate pathway that hinder conversion to its active form. We examined physiological and clinical effects of l-methylfolate, the fully reduced and bioactive form of folate, in schizophrenia. In this randomized, double-blind trial, outpatients with schizophrenia (n=55) received l-methylfolate 15 mg or placebo for 12 weeks. Patients were maintained on stable doses of antipsychotic medications...
March 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28284863/next-generation-nir-fluorophores-for-tumor-imaging-and-fluorescence-guided-surgery-a-review
#18
REVIEW
Ashanul Haque, Md Serajul Haque Faizi, Jahangir Ahmad Rather, Muhammad S Khan
Cancer is a group of diseases responsible for the major causes of mortality and morbidity among people of all ages. Even though medical sciences have made enormous growth, complete treatment of this deadly disease is still a challenging task. Last few decades witnessed an impressive growth in the design and development of near infrared (NIR) fluorophores with and without recognition moieties for molecular recognitions, imaging and image guided surgeries. The present article reviews recently reported NIR emitting organic/inorganic fluorophores that targets and accumulates in organelle/organs specifically for molecular imaging of cancerous cells...
February 28, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28280722/tissue-engineered-solutions-in-plastic-and-reconstructive-surgery-principles-and-practice
#19
REVIEW
Sarah Al-Himdani, Zita M Jessop, Ayesha Al-Sabah, Emman Combellack, Amel Ibrahim, Shareen H Doak, Andrew M Hart, Charles W Archer, Catherine A Thornton, Iain S Whitaker
Recent advances in microsurgery, imaging, and transplantation have led to significant refinements in autologous reconstructive options; however, the morbidity of donor sites remains. This would be eliminated by successful clinical translation of tissue-engineered solutions into surgical practice. Plastic surgeons are uniquely placed to be intrinsically involved in the research and development of laboratory engineered tissues and their subsequent use. In this article, we present an overview of the field of tissue engineering, with the practicing plastic surgeon in mind...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28271489/the-pyruvate-dehydrogenase-complex-and-related-assemblies-in-health-and-disease
#20
Olwyn Byron, John Gordon Lindsay
The family of 2-oxoacid dehydrogenase complexes (2-OADC), typified by the pyruvate dehydrogenase multi-enzyme complex (PDC) as its most prominent member, are massive molecular machines (Mr, 4-10 million) controlling key steps in glucose homeostasis (PDC), citric acid cycle flux (OGDC, 2-oxoglutarate dehydrogenase) and the metabolism of the branched-chain amino acids, leucine, isoleucine and valine (BCOADC, branched-chain 2-OADC). These highly organised mitochondrial arrays, composed of multiple copies of three separate enzymes, have been widely studied as paradigms for the analysis of enzyme cooperativity, substrate channelling, protein-protein interactions and the regulation of activity by phosphorylation ...
2017: Sub-cellular Biochemistry
keyword
keyword
46581
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"