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https://www.readbyqxmd.com/read/28336778/the-predictive-value-of-early-in-treatment-fdg-pet-ct-response-to-chemotherapy-in-combination-with-bevacizumab-in-advanced-non-squamous-non-small-cell-lung-cancer
#1
Edwin A Usmanij, Tinatin Natroshvili, Johanna N H Timmer-Bonte, Wim J G Oyen, Miep A van der Drift, Johan Bussink, Lioe-Fee de Geus-Oei
(18)F-fluorodeoxyglucose-positron emission tomography/computed tomography ((18)F-FDG PET/CT) is potentially applicable to predict response to chemotherapy in combination with bevacizumab in patients with advanced non-small cell lung cancer (NSCLC). Methods: In 25 patients with advanced non-squamous NSCLC, (18)F-FDG-PET/CT was performed before treatment and after two-weeks, at the end of the second week of first cycle carboplatin - paclitaxel and bevacizumab (CPB) treatment. Patients received up to a total of 4 cycles of CPB treatment...
March 23, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28327134/the-effect-of-intra-articular-botulinum-toxin-a-on-substance-p-prostaglandin-e2-and-tumor-necrosis-factor-alpha-in-the-canine-osteoarthritic-joint
#2
Helka M Heikkilä, Anna K Hielm-Björkman, John F Innes, Outi M Laitinen-Vapaavuori
BACKGROUND: Recently, intra-articular botulinum toxin A (IA BoNT A) has been shown to reduce joint pain in osteoarthritic dogs. Similar results have been reported in human patients with arthritis. However, the mechanism of the antinociceptive action of IA BoNT A is currently not known. The aim of this study was to explore this mechanism of action by investigating the effect of IA BoNT A on synovial fluid (SF) and serum substance P (SP), prostaglandin E2 (PGE2), and tumor necrosis factor alpha (TNF-α) in osteoarthritic dogs...
March 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28324318/botulinum-neurotoxin-type-a-for-the-treatment-of-pain-not-just-in-migraine-and-trigeminal-neuralgia
#3
Giorgio Sandrini, Roberto De Icco, Cristina Tassorelli, Nicola Smania, Stefano Tamburin
BACKGROUND: Despite their huge epidemiological impact, primary headaches, trigeminal neuralgia and other chronic pain conditions still receive suboptimal medical approach, even in developed countries. The limited efficacy of current pain-killers and prophylactic treatments stands among the main reasons for this phenomenon. Botulinum neurotoxin (BoNT) represents a well-established and licensed treatment for chronic migraine, but also an emerging treatment for other types of primary headache, trigeminal neuralgia, neuropathic pain, and an increasing number of pain conditions...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28323873/a-three-monoclonal-antibody-combination-potently-neutralizes-multiple-botulinum-neurotoxin-serotype-f-subtypes
#4
Yongfeng Fan, Consuelo Garcia-Rodriguez, Jianlong Lou, Weihua Wen, Fraser Conrad, Wenwu Zhai, Theresa J Smith, Leonard A Smith, James D Marks
Human botulism is primarily caused by botulinum neurotoxin (BoNT) serotypes A, B and E, with around 1% caused by serotype F (BoNT/F). BoNT/F comprises at least seven different subtypes with the amino acid sequence difference between subtypes as high as 36%. The sequence differences present a significant challenge for generating monoclonal antibodies (mAbs) that can bind, detect and neutralize all BoNT/F subtypes. We used repertoire cloning of immune mouse antibody variable (V) regions and yeast display to generate a panel of 33 lead single chain Fv (scFv) mAbs that bound one or more BoNT/F subtypes with a median equilibrium dissociation constant (KD) of 4...
2017: PloS One
https://www.readbyqxmd.com/read/28303526/a-herbivore-tag-and-trace-system-reveals-contact-and-density-dependent-repellence-of-a-root-toxin
#5
Zoe Bont, Carla Arce, Meret Huber, Wei Huang, Adrien Mestrot, Craig J Sturrock, Matthias Erb
Foraging behavior of root feeding organisms strongly affects plant-environment-interactions and ecosystem processes. However, the impact of plant chemistry on root herbivore movement in the soil is poorly understood. Here, we apply a simple technique to trace the movement of soil-dwelling insects in their habitats without disturbing or restricting their interactions with host plants. We tagged the root feeding larvae of Melolontha melolontha with a copper ring and repeatedly located their position in relation to their preferred host plant, Taraxacum officinale, using a commercial metal detector...
March 16, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28303381/differences-in-dietary-intake-during-chemotherapy-in-breast-cancer-patients-compared-to-women-without-cancer
#6
Y C de Vries, M M G A van den Berg, J H M de Vries, S Boesveldt, J Th C M de Kruif, N Buist, A Haringhuizen, M Los, D W Sommeijer, J H N Timmer-Bonte, H W M van Laarhoven, M Visser, E Kampman, R M Winkels
PURPOSE: Breast cancer patients receiving chemotherapy often experience symptoms such as nausea, vomiting and loss of appetite that potentially affect dietary habits. This study assessed the intake of energy, macronutrients and food groups before and during chemotherapy in breast cancer patients compared with women without cancer, and determined the association between symptoms and energy and macronutrient intake. METHODS: This study included 117 newly diagnosed breast cancer patients scheduled for chemotherapy and 88 women without cancer...
March 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28296078/botulinum-neurotoxin-type-b-uses-a-distinct-entry-pathway-mediated-by-cdc42-into-intestinal-cells-versus-neuronal-cells
#7
Chloé Connan, Marie Voillequin, Carolina Varela Chavez, Christelle Mazuet, Christian Leveque, Sandrine Vitry, Alain Vandewalle, Michel R Popoff
Botulinum neurotoxins (BoNTs) are responsible for severe flaccid paralysis by inhibiting the release of acetylcholine at the neuromuscular junctions. BoNT/B most often induces mild forms of botulism with predominant dysautonomic symptoms. In food borne botulism and botulism by intestinal colonization such as infant botulism, which are the most frequent naturally acquired forms of botulism, the digestive tract is the main entry route of BoNTs into the organism. We previously showed that BoNT/B translocates through mouse intestinal barrier by an endocytosis-dependent mechanism and subsequently targets neuronal cells, mainly cholinergic neurons, in the intestinal mucosa and musculosa...
March 11, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28295026/neuronal-entry-and-high-neurotoxicity-of-botulinum-neurotoxin-a-require-its-n-terminal-binding-sub-domain
#8
Jiafu Wang, Jianghui Meng, Marc Nugent, Minhong Tang, J Oliver Dolly
Botulinum neurotoxins (BoNTs) are the most toxic proteins known, due to inhibiting the neuronal release of acetylcholine and causing flaccid paralysis. Most BoNT serotypes target neurons by binding to synaptic vesicle proteins and gangliosides via a C-terminal binding sub-domain (HCC). However, the role of their conserved N-terminal sub-domain (HCN) has not been established. Herein, we created a mutant form of recombinant BoNT/A lacking HCN (rAΔHCN) and showed that the lethality of this mutant is reduced 3...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28282915/implementing-the-bruker-maldi-biotyper-in-the-public-health-laboratory-for-c-botulinum-neurotoxin-detection
#9
Michael J Perry, Dominick A Centurioni, Stephen W Davis, George E Hannett, Kimberlee A Musser, Christina T Egan
Currently, the gold standard method for active botulinum neurotoxin (BoNT) detection is the mouse bioassay (MBA). A Centers for Disease Control and Prevention-developed mass spectrometry (MS)-based assay that detects active BoNT was successfully validated and implemented in a public health laboratory in clinical matrices using the Bruker MALDI-TOF MS (Matrix-assisted laser desorption ionization-time of flight mass spectrometry) Biotyper. For the first time, a direct comparison with the MBA was performed to determine MS-based assay sensitivity using the Bruker MALDI Biotyper...
March 9, 2017: Toxins
https://www.readbyqxmd.com/read/28282873/crystal-structure-of-the-receptor-binding-domain-of-botulinum-neurotoxin-type-ha-also-known-as-type-fa-or-h
#10
Guorui Yao, Kwok-Ho Lam, Kay Perry, Jasmin Weisemann, Andreas Rummel, Rongsheng Jin
Botulinum neurotoxins (BoNTs), which have been exploited as cosmetics and muscle-disorder treatment medicines for decades, are well known for their extreme neurotoxicity to humans. They pose a potential bioterrorism threat because they cause botulism, a flaccid muscular paralysis-associated disease that requires immediate antitoxin treatment and intensive care over a long period of time. In addition to the existing seven established BoNT serotypes (BoNT/A-G), a new mosaic toxin type termed BoNT/HA (aka type FA or H) was reported recently...
March 8, 2017: Toxins
https://www.readbyqxmd.com/read/28280466/embryonic-stem-cell-derived-neurons-grown-on-multi-electrode-arrays-as-a-novel-in-vitro-bioassay-for-the-detection-of-clostridium-botulinum-neurotoxins
#11
Stephen P Jenkinson, Denis Grandgirard, Martina Heidemann, Anne Tscherter, Marc-André Avondet, Stephen L Leib
Clostridium botulinum neurotoxins (BoNTs) are the most poisonous naturally occurring protein toxins known to mankind and are the causative agents of the severe and potentially life-threatening disease botulism. They are also known for their application as cosmetics and as unique bio-pharmaceuticals to treat an increasing number of neurological and non-neurological disorders. Currently, the potency of biologically active BoNT for therapeutic use is mainly monitored by the murine LD50-assay, an ethically disputable test causing suffering and death of a considerable number of mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28271909/challenges-in-searching-for-therapeutics-against-botulinum-neurotoxins
#12
Marco Pirazzini, Ornella Rossetto
Botulinum neurotoxins (BoNTs) are the most potent toxins known. BoNTs are responsible for botulism, a deadly neuroparalytic syndrome caused by the inactivation of neurotransmitter release at peripheral nerve terminals. Thanks to their specificity and potency, BoNTs are both considered potential bio-weapons and therapeutics of choice for a variety of medical syndromes. Several variants of BoNTs have been identified with individual biological properties and little antigenic relation. This expands greatly the potential of BoNTs as therapeutics but poses a major safety problem, increasing the need for finding appropriate antidotes...
March 8, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28264544/efficacy-of-bont-a-and-swallowing-treatment-for-oropharyngeal-dysphagia-recovery-in-a-patient-with-lateral-medullary-syndrome-a-case-study
#13
Irene Battel, Isabella Koch, Federica Biddau, Carla Carollo, Francesco Piccione, Francesca Meneghello, Merico Antonio, Katie Palmer, Rosario Marchese Ragona
BACKGROUND: Wallenberg's syndrome (WS) is known as posterior inferior cerebellar artery syndrome. Dysphagia has been reported from 51% to 94% of the patients, ranging from mild to severe. CASE PRESENTATION: We reported a case of a patient (Male; 52yrs) with WS. MRI showed an intense hypodense area in the dorsolateral part of the ponto-medullary junction. The clinical signs were severe dysphagia, fed by PEG (FOIS 1; PAS 7), sialorrhea, trismus and ataxia. CLINICAL REHABILITATION IMPACT: Dysphagia was treated by botulinum toxin tipe A (BoNT-A), which was injected into the parotid and submandibular salivary glands, temporalis and masseter muscles, cricopharyngeal muscle associated with specific swallowing exercise and food trails...
March 6, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28263010/bilateral-analgesic-effects-of-abobotulinumtoxina-dysport-%C3%A2-following-unilateral-administration-in-the-rat
#14
C Favre-Guilmard, P-E Chabrier, M Kalinichev
BACKGROUND: In addition to inhibition of muscle and glandular hyperactivity, botulinum neurotoxin (BoNT) type A also interferes with pain processing. Previously, in a rat model of paclitaxel-induced polyneuropathy, abobotulinumtoxinA (aboBoNT-A) elicited analgesic effects not only in the injected paw, but also in the contralateral, non-injected paw. METHODS: Here, we assessed bilateral analgesic effects of unilateral aboBoNT-A in several chronic pain models in Sprague-Dawley rats...
March 6, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28260503/in-vivo-neutralization-of-botulinum-neurotoxin-serotype-e-using-rabbit-polyclonal-antibody-developed-against-bont-e-light-chain
#15
Sarita Sarita, Ponmariappan Sarkaraisamy, Arti Sharma, D V Kamboj, A K Jain
Clostridium botulinum is an obligate anaerobic, Gram positive bacterium that secretes extremely toxic substances known as botulinum neurotoxins (BoNTs) that cause serious paralytic illness called botulism. Based upon the serological properties, these neurotoxin have been classified into seven serotypes designated from A to G. Due to extreme toxicity of BoNTs, these neurotoxins have been designated as category A biowarfare agents. There is no commercial neutralizing antibody available for the treatment of botulism...
March 1, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28255752/is-there-enough-evidence-to-use-botulinum-toxin-injections-for-bruxism-management-a-systematic-literature-review
#16
REVIEW
Giancarlo De la Torre Canales, Mariana Barbosa Câmara-Souza, Camilla Fraga do Amaral, Renata Cunha Matheus Rodrigues Garcia, Daniele Manfredini
OBJECTIVE: The objective of the study was to conduct a systematic review of the literature assessing the effects of botulinum toxin (BoNT-A) injections in the management of bruxism. MATERIALS AND METHODS: Search for articles involved the PubMed, Scopus, Web of Science, Embase, Cochrane, Scielo and Lilacs databases. Specific terms were used and the search carried out from 1980 to March 2016 by three independent researchers. Randomized controlled studies (RCTs), prospective and before-after studies that applied BoNT-A at the masseter and/or temporalis muscles were included...
March 2, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28254067/the-ocareplatform-a-context-aware-system-to-support-independent-living
#17
F De Backere, P Bonte, S Verstichel, F Ongenae, F De Turck
BACKGROUND: Currently, healthcare services, such as institutional care facilities, are burdened with an increasing number of elderly people and individuals with chronic illnesses and a decreasing number of competent caregivers. OBJECTIVES: To relieve the burden on healthcare services, independent living at home could be facilitated, by offering individuals and their (in)formal caregivers support in their daily care and needs. With the rise of pervasive healthcare, new information technology solutions can assist elderly people ("residents") and their caregivers to allow residents to live independently for as long as possible...
March 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28252640/crystal-structure-of-the-bont-a2-receptor-binding-domain-in-complex-with-the-luminal-domain-of-its-neuronal-receptor-sv2c
#18
Roger M Benoit, Martin A Schärer, Mara M Wieser, Xiaodan Li, Daniel Frey, Richard A Kammerer
A detailed molecular understanding of botulinum neurotoxin (BoNT)/host-cell-receptor interactions is fundamental both for developing strategies against botulism and for generating improved BoNT variants for medical applications. The X-ray crystal structure of the receptor-binding domain (HC) of BoNT/A1 in complex with the luminal domain (LD) of its neuronal receptor SV2C revealed only few specific side-chain - side-chain interactions that are important for binding. Notably, two BoNT/A1 residues, Arg 1156 and Arg 1294, that are crucial for the interaction with SV2, are not conserved among subtypes...
March 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28250061/in-memoriam-frederick-j-bonte-md-1922-2016
#19
(no author information available yet)
No abstract text is available yet for this article.
March 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28248974/the-effect-of-randomised-exposure-to-different-types-of-natural-outdoor-environments-compared-to-exposure-to-an-urban-environment-on-people-with-indications-of-psychological-distress-in-catalonia
#20
Margarita Triguero-Mas, Christopher J Gidlow, David Martínez, Jeroen de Bont, Glòria Carrasco-Turigas, Tania Martínez-Íñiguez, Gemma Hurst, Daniel Masterson, David Donaire-Gonzalez, Edmund Seto, Marc V Jones, Mark J Nieuwenhuijsen
INTRODUCTION: Experimental studies have reported associations between short-term exposure to natural outdoor environments (NOE) and health benefits. However, they lack insight into mechanisms, often have low external and ecological validity, and have rarely focused on people with some psycho-physiological affection. The aim of this study was to use a randomized, case-crossover design to investigate: (i) the effects of unconstrained exposure to real natural and urban environments on psycho-physiological indicators of people with indications of psychological distress, (ii) the possible differential effects of 30 and 30+180 minutes exposures, and (iii) the possible mechanisms explaining these effects...
2017: PloS One
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