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Botulinum toxine

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https://www.readbyqxmd.com/read/28819801/botulinum-toxin-treatment-in-multiple-sclerosis-a-review
#1
REVIEW
Yasaman Safarpour, Tahereh Mousavi, Bahman Jabbari
Purpose of review The purpose of this review is to provide updated information on the role of botulinum neurotoxin (BoNT) therapy in multiple sclerosis (MS). This review aims to answer which symptoms of multiple sclerosis may be amenable to BoNT therapy. Recent findings We searched the literature on the efficacy of BoNTs for treatment of MS symptoms up to April 1st 2017 via the Yale University Library's search engine including but not limited to Pub Med and Ovis SP. The level of efficacy was defined according to the assessment's criteria set forth by the Subcommittee on Guideline Development of the American Academy of Neurology...
August 17, 2017: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/28818530/recent-developments-in-clinical-trials-of-botulinum-neurotoxins
#2
Antoniangela Cocco, Alberto Albanese
Botulinum neurotoxins (BoNTs) are increasingly used in clinical practice for several indications. Following the pioneering years of discoveries, the recent years have witnessed an increase of new indications and new toxin brands. We review here the clinical trials on BoNTs performed since 2014 and put them into perspective. We also review the ongoing trials listed by the National Institutes of Health registry (Clinicaltrials.gov). The following indications are reviewed here: blepharospasm, cervical dystonia, spasticity, cerebral palsy, urinary incontinence, headache, topical formulations, postoperative cardiac arrhythmia, keloids and scars...
August 14, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28817768/metal-free-synthesis-of-homopropargylic-alcohols-from-aldehydes
#3
Bruno V M Teodoro, Luiz F Silva
The synthesis of homopropargylic alcohols under metal-free and mild condition is described. This transformation is based on a one-pot procedure involving sequential α-alkynylation of acyclic aldehydes using hypervalent iodine reagents and borohydride reduction. The chemistry exhibit broad substrate scope and good scalability, providing a convenient route for the α-alkynylation of aldehydes along with the formation of a quaternary carbon center. The applicability of the method is demonstrated by the gram-scale synthesis of the key synthetic precursor of botulinum toxin inhibitors...
August 17, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28816990/a-randomized-controlled-trial-of-botulinum-toxin-a-for-treating-neuropathic-pain-in-patients-with-spinal-cord-injury-retraction
#4
(no author information available yet)
No abstract text is available yet for this article.
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28812212/obesity-treatment-with-botulinum-toxin-a-is-not-effective-a-systematic-review-and-meta-analysis
#5
REVIEW
Fabio Bustamante, Vitor Ottoboni Brunaldi, Wanderley Marques Bernardo, Diogo Turiani H de Moura, Eduardo Turiani H de Moura, Manoel Galvão, Marco Aurélio Santo, Eduardo Guimarães H de Moura
The effectiveness of gastric injections of botulinum toxin-A (BTA) as primary treatment for obesity is not well known since results in literature are discrepant. Hence, we aimed to systematically review and meta-analyze the available data to assess the real effect of BTA therapy. We searched MEDLINE, Embase, Cochrane, SCOPUS, EBSCO, LILACS, and BVS. We considered eligible only randomized controlled trials enrolling obese patients comparing BTA versus saline injections. Our initial search identified 8811 records...
August 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28810569/ultrasound-guided-injections-of-botulinum-toxin-type-a-into-stellate-ganglion-to-treat-insomnia
#6
Xu-Dong Ding, Zhi-Gang Ding, Wei Wang, Yan-Ping Liu, Jing Zhong, Hua-Xian Chen
The aim of the study was to investigate the curative effect of botulinum toxin type A (BTX-A) injection into stellate ganglion under ultrasound guidance in patients suffering from insomnia. From October 2015 to April 2016, 48 patients suffering from insomnia were enrolled in this study. Patients were divided into 2 groups using a random digital grouping method: i) Control group (24 cases), and ii) treatment group (24 cases). Patients in the control group received 1 mg oral estazolam 30 min before sleep every night, while patients in the treatment group received BTX-A injection in bilateral stellate ganglions under ultrasound guidance...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28809991/treatment-of-inverse-intertriginous-psoriasis-updated-guidelines-from-the-medical-board-of-the-national-psoriasis-foundation
#7
Hasan Khosravi, Michael P Siegel, Abby S Van Voorhees, Joseph F Merola
<p>Inverse or intertriginous psoriasis commonly involves skin fold areas including the axillae, perianal skin, intergluteal cleft, inframammary, genital/inguinal, abdominal, and retroauricular folds. After reviewing the literature for new treatments, a task force was convened to update a consensus on inverse psoriasis therapy. Short-term treatment continues to be low-potency topical steroids. In order to avoid steroid-induced adverse effects, long-term therapy includes topical immunomodulators, calcitriol, and calcipotriene...
August 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28809452/neurotoxin-synthesis-is-positively-regulated-by-the-sporulation-transcription-factor-spo0a-in-clostridium-botulinum-type-e
#8
Gerald Mascher, Anna Mertaoja, Hannu Korkeala, Miia Lindström
Clostridium botulinum produces the most potent natural toxin, the botulinum neurotoxin (BoNT), probably to create anaerobiosis and nutrients by killing the host, and forms endospores that facilitate survival in harsh conditions and transmission. Peak BoNT production coincides with initiation of sporulation in C. botulinum cultures, which suggests common regulation. Here we show that Spo0A, the master regulator of sporulation, positively regulates BoNT production. Insertional inactivation of spo0A in C. botulinum type E strain Beluga resulted in significantly reduced BoNT production and in abolished or highly reduced sporulation in relation to wild-type controls...
August 15, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28807495/the-colorful-spectrum-of-tourette-syndrome-and-its-medical-surgical-and-behavioral-therapies
#9
Jan Roth
Tourette syndrome (TS) is a common neuropsychiatric disorder, more common in males than females, with onset before age 18. TS is characterized by multiple motor tics and one or more vocal/phonic tics, persisting for more than a year. Tics are unvoluntary, abrupt, rapid, repetitive, but non-rhythmic movements or sounds (vocalizations). They are preceded by an inner urge. Tics can be temporarily suppressed, but this leads to a powerful re-emergence. The performance of tics results in immediate but transient relief...
August 10, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28806237/botulinum-toxin-use-in-rehabilitation-clinics-a-survey-to-highlight-differences-and-similarities
#10
Rajiv Singh
Spasticity is a complex condition and its management is multifaceted, involving physical therapies as well as interventions with botulinum toxin. There is currently no standard for best practice and also wide variation in spasticity service set-ups and the background of clinicians involved in treatment. This could potentially cause large differences in practice. The aim of this survey was to attempt to identify some of the common elements of service delivery as well as highlight any significant variations in service models...
August 11, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28805760/-mapping-of-motor-points-in-the-flexor-muscles-of-the-arm-for-the-optimization-of-botulinum-toxin-injections-in-treatment-of-spasticity
#11
A P Kovalenko, V K Misikov, K A Sinelnikov, A N Karimov
AIM: To study the location and verification of motor points (MP) of the upper limbs for targeting botulinum toxin (BT) type A injections in the treatment of spasticity. MATERIAL AND METHODS: Twenty healthy people were examined. Using electromyography a complete study of the muscles of the upper limbs was conducted. RESULTS: Anatomical localization of MP was performed. The location of MP is identical and does not depend on sex, age and the dominant limb...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28805566/botulinum-toxin-therapy-for-nonmotor-aspects-of-parkinson-s-disease
#12
Jarosław Sławek, Mariusz Madaliński
The medical treatment of Parkinson's disease (PD) is symptomatic both in terms of motor and nonmotor aspects. The nonmotor symptoms therapy should be taken into account as many of them negatively influence the quality of life and are treatable. Botulinum neurotoxin (BoNT) offers effective treatment for drooling and bladder dysfunctions and alternative treatment for constipation and pain related to parkinsonism. BoNT for drooling is probably the best-documented therapy for nonmotor symptoms by clinical trials...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28800600/botulinum-neurotoxin-c-mutants-reveal-different-effects-of-syntaxin-or-snap-25-proteolysis-on-neuromuscular-transmission
#13
Giulia Zanetti, Stefan Sikorra, Andreas Rummel, Nadja Krez, Elisa Duregotti, Samuele Negro, Tina Henke, Ornella Rossetto, Thomas Binz, Marco Pirazzini
Botulinum neurotoxin serotype C (BoNT/C) is a neuroparalytic toxin associated with outbreaks of animal botulism, particularly in birds, and is the only BoNT known to cleave two different SNARE proteins, SNAP-25 and syntaxin. BoNT/C was shown to be a good substitute for BoNT/A1 in human dystonia therapy because of its long lasting effects and absence of neuromuscular damage. Two triple mutants of BoNT/C, namely BoNT/C S51T/R52N/N53P (BoNT/C α-51) and BoNT/C L200W/M221W/I226W (BoNT/C α-3W), were recently reported to selectively cleave syntaxin and have been used here to evaluate the individual contribution of SNAP-25 and syntaxin cleavage to the effect of BoNT/C in vivo...
August 11, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28800260/study-of-response-of-swiss-webster-mice-to-light-subunit-of-mushroom-tyrosinase
#14
W T Ismaya, A Efthyani, D S Retnoningrum, X Lai, B W Dijkstra, R R Tjandrawinata, H Rachmawati
The light subunit of mushroom, Agaricus bisporus, tyrosinase (LSMT), has been identified as an extrinsic component of the enzyme. Its function is unknown, but it can cross an epithelial cell layer, which suggests that it can be absorbed by the intestine. A similar capability has been demonstrated for the HA-33 component of the progenitor toxin from Clostridium botulinum, which is the closest structural homolog of LSMT. Unlike HA-33, LSMT appears to be non-immunogenic as shown by preliminary tests in Swiss Webster mice...
August 11, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28800173/non-invasive-brain-stimulation-might-act-in-synergy-with-invasive-brain-stimulation-in-dystonia
#15
M Beudel
Dystonia is a disabling disorder for which, in the far majority of cases, no curative treatment is available. Current treatment consists medication, botulinum toxin injections and Deep Brain Stimulation (DBS), which all have their own limitations. This article is protected by copyright. All rights reserved.
August 11, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28800062/cellular-entry-of-clostridium-perfringens-iota-toxin-and-clostridium-botulinum-c2-toxin
#16
REVIEW
Masaya Takehara, Teruhisa Takagishi, Soshi Seike, Masataka Oda, Yoshihiko Sakaguchi, Junzo Hisatsune, Sadayuki Ochi, Keiko Kobayashi, Masahiro Nagahama
Clostridium perfringens iota-toxin and Clostridium botulinum C2 toxin are composed of two non-linked proteins, one being the enzymatic component and the other being the binding/translocation component. These latter components recognize specific receptors and oligomerize in plasma membrane lipid-rafts, mediating the uptake of the enzymatic component into the cytosol. Enzymatic components induce actin cytoskeleton disorganization through the ADP-ribosylation of actin and are responsible for cell rounding and death...
August 11, 2017: Toxins
https://www.readbyqxmd.com/read/28799056/single-dose-botulinum-toxin-type-a-compared-with-repeated-dose-for-treatment-of-trigeminal-neuralgia-a-pilot-study
#17
Haifeng Zhang, Yajun Lian, Nanchang Xie, Chen Chen, Yake Zheng
BACKGROUND: Several RCT studies including ours, seem to prove the role of Botulinum toxin type A (BTX-A) in the treatment of trigeminal neuralgia (TN), but no standardized dosing regimen has been established. In our study, we compare two different methods of administration: single-dose or repeated-dose strategy which was most frequently applied over the years in our centre. METHODS: An open-label trail was conducted. One hundred patients with classic TN symptoms were recruited, and randomly and equally apportioned to single- or repeated-dose group...
August 10, 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28794591/patient-treatment-preferences-for-symptomatic-refractory-urodynamic-idiopathic-detrusor-overactivity
#18
Christina L Fontaine, Ian Rudd, Mahreen Pakzad, Rizwan Hamid, Jeremy L Ockrim, Tamsin J Greenwell
INTRODUCTION: There is a multiplicity of treatments currently available for patients with symptomatic refractory urodynamic idiopathic detrusor overactivity (SRU IDO). We have assessed patient treatment preferences and their outcomes over a 12-month period from January 1 2009 to December 31 2009. PATIENTS AND METHODS: A retrospective database of all patients with SRU IDO was reviewed for patient demographics, treatment preference, and outcome. All patients attending for treatment in the time period were offered: no further treatment, repeat bladder training ± antimuscarinic (BT ± AM), acupuncture, intravesical botulinum toxin injection, sacral neuromodulation (SNM), clam cystoplasty ± Mitrofanoff channel formation, and ileal conduit...
July 2017: Urology Annals
https://www.readbyqxmd.com/read/28794134/mrna-mediates-passive-vaccination-against-infectious-agents-toxins-and-tumors
#19
Moritz Thran, Jean Mukherjee, Marion Pönisch, Katja Fiedler, Andreas Thess, Barbara L Mui, Michael J Hope, Ying K Tam, Nigel Horscroft, Regina Heidenreich, Mariola Fotin-Mleczek, Charles B Shoemaker, Thomas Schlake
The delivery of genetic information has emerged as a valid therapeutic approach. Various reports have demonstrated that mRNA, besides its remarkable potential as vaccine, can also promote expression without inducing an adverse immune response against the encoded protein. In the current study, we set out to explore whether our technology based on chemically unmodified mRNA is suitable for passive immunization. To this end, various antibodies using different designs were expressed and characterized in vitro and in vivo in the fields of viral infections, toxin exposure, and cancer immunotherapies...
August 9, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28794075/non-surgical-treatment-for-eyelid-retraction-in-thyroid-eye-disease-ted
#20
REVIEW
Ana Beatriz Diniz Grisolia, Ricardo Christopher Couso, Suzana Matayoshi, Raymond S Douglas, César Augusto Briceño
Thyroid eye disease (TED) is an autoimmune condition with an unpredictable course that may lead to permanent facial disfigurement. Eyelid retraction is one of the most common findings, and frequently demands attention due to ocular exposure and impaired cosmesis. Surgical treatment remains the most effective option, but there is a role for temporary corrections during the active phase of the disease, as well as in patients who are poor surgical candidates. The aim of this review is to describe the non-surgical modalities currently available for treatment of eyelid malposition in TED...
August 9, 2017: British Journal of Ophthalmology
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