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Botulinum toxine

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https://www.readbyqxmd.com/read/28548593/bilateral-deep-brain-stimulation-of-the-subthalamic-nucleus-in-primary-meige-syndrome
#1
Shikun Zhan, Fafa Sun, Yixin Pan, Wei Liu, Peng Huang, Chunyan Cao, Jing Zhang, Dianyou Li, Bomin Sun
OBJECTIVE Subthalamic nucleus deep brain stimulation has been shown to be effective in reducing symptoms of primary Meige syndrome. However, assessments of its efficacy and safety have been limited to several case reports and small studies. METHODS The authors performed a retrospective study to assess the efficacy and safety of bilateral subthalamic nucleus stimulation in 15 patients with primary Meige syndrome who responded poorly to medical treatments or botulinum toxin injections. Using the movement and disability subscores of the Burke-Fahn-Marsden Dystonia Rating Scale, the authors evaluated the severity of patients' dystonia and related before surgery and at final follow-up during neurostimulation...
May 26, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28546483/finished-whole-genome-sequences-of-two-clostridium-botulinum-type-a-b-isolates
#2
Jessica L Halpin, Karen Hill, Shannon L Johnson, David Carlton Bruce, T Brian Shirey, Janet K Dykes, Carolina Lúquez
Clostridium botulinum secretes a potent neurotoxin that causes devastating effects when ingested, including paralysis and death if not treated. In the United States, some clinically significant strains produce toxin type A while also harboring a silent B gene. These are the first two closed genome sequences published for this subset.
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28545305/clostridium-difficile-toxins-a-and-b-receptors-pores-and-translocation-into-cells
#3
Kathleen E Orrell, Zhifen Zhang, Seiji N Sugiman-Marangos, Roman A Melnyk
The most potent toxins secreted by pathogenic bacteria contain enzymatic moieties that must reach the cytosol of target cells to exert their full toxicity. Toxins such as anthrax, diphtheria, and botulinum toxin all use three well-defined functional domains to intoxicate cells: a receptor-binding moiety that triggers endocytosis into acidified vesicles by binding to a specific host-cell receptor, a translocation domain that forms pores across the endosomal membrane in response to acidic pH, and an enzyme that translocates through these pores to catalytically inactivate an essential host cytosolic substrate...
May 26, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28543038/central-voice-production-and-pathophysiology-of-spasmodic-dysphonia
#4
REVIEW
Niv Mor, Kristina Simonyan, Andrew Blitzer
OBJECTIVE: Our ability to speak is complex, and the role of the central nervous system in controlling speech production is often overlooked in the field of otolaryngology. In this brief review, we present an integrated overview of speech production with a focus on the role of central nervous system. The role of central control of voice production is then further discussed in relation to the potential pathophysiology of spasmodic dysphonia (SD). DATA SOURCES: Peer-review articles on central laryngeal control and SD were identified from PUBMED search...
May 23, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28542501/a-rho-associated-coiled-coil-containing-kinases-rock-inhibitor-y-27632-enhances-adhesion-viability-and-differentiation-of-human-term-placenta-derived-trophoblasts-in-vitro
#5
Kenichiro Motomura, Naoko Okada, Hideaki Morita, Mariko Hara, Masato Tamari, Keisuke Orimo, Go Matsuda, Ken-Ichi Imadome, Akio Matsuda, Takeshi Nagamatsu, Mikiya Fujieda, Haruhiko Sago, Hirohisa Saito, Kenji Matsumoto
Although human term placenta-derived primary cytotrophoblasts (pCTBs) represent a good human syncytiotrophoblast (STB) model, in vitro culture of pCTBs is not always easily accomplished. Y-27632, a specific inhibitor of Rho-associated coiled-coil containing kinases (ROCK), reportedly prevented apoptosis and improved cell-to-substrate adhesion and culture stability of dissociated cultured human embryonic stem cells and human corneal endothelial cells. The Rho kinase pathway regulates various kinds of cell behavior, some of which are involved in pCTB adhesion and differentiation...
2017: PloS One
https://www.readbyqxmd.com/read/28540231/use-of-botulinum-toxin-for-voiding-dysfunction
#6
REVIEW
David Eldred-Evans, Prokar Dasgupta
The use of botulinum toxin A (BoNT-A) has expanded across a range of lower urinary tract conditions. This review provides an overview of the current indications for BoNT-A in the lower urinary tract and critically evaluates the published evidence within each area. The classic application of BoNT-A has been in the management of refractory neurogenic detrusor overactivity (NDO) and overactive bladder (OAB). There is a large volume of high-quality evidence, including numerous randomized placebo-controlled trials, which demonstrate the efficacy of BoNT-A over a long follow-up period...
April 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28540017/cluster-headache-associated-with-secondary-unilateral-blepharospasm-a-case-report-and-review-of-the-literature
#7
Abbas Bagheri, Minoo Mohammadi, Ghader Harooni, Keyvan Khosravifard, Mohadeseh Feizi, Shahin Yazdani
PURPOSE: Cluster headache is one of the most serious types of headache that is accompanied by autonomic parasympathetic symptoms. Its association with hemifacial spasm in the same side had been rarely reported. The aim of this report is describing a case with this association and treatment strategies. CASE REPORT: Here we report a 37-year-old female with cluster headache associated with secondary unilateral blepharospasm that was successfully treated with combination therapy including botulinum toxin injection...
April 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28539691/goals-set-by-patients-using-the-icf-model-before-receiving-botulinum-injections-and-their-relation-to-spasticity-distribution
#8
Kevin Choi, Jaclyn Peters, Andrew Tri, Elizabeth Chapman, Ayako Sasaki, Farooq Ismail, Chris Boulias, Shannon Reid, Chetan P Phadke
Purpose: Goal Attainment Scaling (GAS) is used to assess functional gains in response to treatment. Specific characteristics of the functional goals set by individuals receiving botulinum toxin type A (BoNTA) injections for spasticity management are unknown. The primary objectives of this study were to describe the characteristics of the goals set by patients before receiving BoNTA injections using the International Classification of Functioning, Disability and Health (ICF) and to determine whether the pattern of spasticity distribution affected the goals set...
2017: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/28537692/long-term-response-of-different-botulinum-toxins-in-refractory-neurogenic-detrusor-overactivity-due-to-spinal-cord-injury
#9
Giuseppe Lombardi, Stefania Musco, Giovanni Bacci, Maria Celso, Valerio Bellio, Giulio Del Popolo
PURPOSE: To assess the response in spinal cord injured patients alternatively treated with different types and dosages of Botulinum neurotoxin type A (BoNT/A) over 15 years. MATERIAL AND METHODS: Patients who underwent first BoNT/A from 1999-2001 and practiced intermittent catheterization were included. Baseline 3-day bladder diary (BD) and urodynamics were collected. BoNT/A failure was defined when patients asked for re-injection ≤ 3 months post-treatment. Criteria for re-injection was at least one daily episode of urinary incontinence at BD...
May 23, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28536763/acute-visual-loss-after-botulinum-toxin-a-injection-in-the-masseter-muscle
#10
Bo Young Chun, Su Yeon Kim
PURPOSE: Acute visual loss after facial injection of cosmetic materials is rarely reported. In this study, we report one patient who developed acute visual loss after an injection of botulinum toxin A for esthetic purposes. METHODS: A 43-year-old Korean woman presented with a decrease in visual acuity to 20/800 after an injection of botulinum toxin A in the masseter muscle. The visual field testing showed an inferior altitudinal defect, and fluorescein angiography revealed a delayed arm-retinal circulation time...
May 23, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28534855/rbc-adherence-of-immune-complexes-containing-botulinum-toxin-improves-neutralization-and-macrophage-uptake
#11
Fetweh H Al-Saleem, Rashmi Sharma, Rama Devudu Puligedda, Md Elias, Chandana Devi Kattala, Paul M Simon, Lance L Simpson, Scott K Dessain
In the paralytic disease botulism, the botulinum neurotoxin (BoNT) passes through the bloodstream to reach and inactivate neuromuscular junctions. Monoclonal antibodies (mAbs) may be useful BoNT countermeasures, as mAb combinations can rapidly clear BoNT from the blood circulation. We have previously shown that the BoNT-neutralizing potency of mAbs can be improved through red blood cell (RBC) immunoadherence. For example, a fusion protein (FP) that adheres biotinylated mAbs to the RBC surface enabled a pair of mAbs to neutralize 5000 LD50 BoNT/A in the mouse protection assay...
May 19, 2017: Toxins
https://www.readbyqxmd.com/read/28530017/mechanical-stress-by-spasticity-accelerates-fracture-healing-after-spinal-cord-injury
#12
Naoyoshi Sakitani, Hiroyuki Iwasawa, Masato Nomura, Yasushi Miura, Hiroshi Kuroki, Junya Ozawa, Hideki Moriyama
Accelerated fracture healing in patients with spinal cord injuries (SCI) is often encountered in clinical practice. However, there is no distinct evidence in the accelerated fracture healing, and the mechanisms of accelerated fracture healing in SCI are poorly understood. We aimed to determine whether SCI accelerated fracture healing in morphology and strength, to characterize the healing process with SCI, and to clarify the factors responsible for accelerated fracture healing. In total, 39 male Wistar rats were randomly divided into healthy control without intervention, SCI only, fracture with SCI, botulinum toxin (BTX) A-treated fracture with SCI, and propranolol-treated fracture with SCI groups...
May 22, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28529419/comparative-study-of-efficacy-and-safety-of-botulinum-toxin-a-injections-and-subcutaneous-curettage-in-the-treatment-of-axillary-hyperhidrosis
#13
Leelavathy Budamakuntla, Eswari Loganathan, Anju George, B N Revanth, V Sankeerth, Sacchidananda Aradhya Sarvjnamurthy
BACKGROUND: Primary focal axillary hyperhidrosis is a chronic distressing disorder affecting both the sexes. When the condition is refractory to conservative management, we should go for more promising therapies like intradermal botulinum toxin A (BtxA) injections in the axilla, and surgical therapies like subcutaneous curettage of sweat glands. AIMS AND OBJECTIVES: The aim of this study is to compare the efficacy, safety and duration of action of intradermal BtxA injections in one axilla and subcutaneous curettage of sweat glands in the other axilla of the same patient with axillary hyperhidrosis...
January 2017: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/28527052/action-mechanisms-of-onabotulinum-toxin-a-hints-for-selection-of-eligible-patients
#14
Carlo Lovati, Luca Giani
In the past few decades, the so-feared botulinum toxin has conversely acquired the role of a ever more versatile therapeutic substance, used in an increasing number of pathological situations, including chronic headache and more precisely in the prophylaxis of chronic migraine. The medical use of botulinum toxin allowed to better understand its multiple mechanisms of action. Investigations about the pathophysiology of primary and secondary headaches has shown a series of common biological elements that frequently are also targets of the action of botulinum toxin...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28524037/-clinical-analysis-of-53-patients-with-clostridium-botulinum-food-poisoning
#15
Peng Zhang, Jianguang Dong, Lili Bai, Zewu Qiu
OBJECTIVE: To analyze the epidemiologic data of patients with Clostridium botulinum food poisoning, and to improve the understanding, diagnosis and treatment of food borne botulism. METHODS: A retrospective study was conducted. Fifty-three patients with Clostridium botulinum food poisoning admitted to Chinese PLA Center of Poisoning and Treatment from January 2009 to December 2016 were enrolled, and they were divided into mild, moderate, and severe groups according to the severity of disease...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28522064/synergistic-effect-of-combination-deoxycholic-acid-and-botulinum-toxin-the-bellatox-technique-for-the-treatment-of-submental-fullness
#16
Jonathan Kantor
No abstract text is available yet for this article.
June 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28522039/injectable-and-topical-neurotoxins-in-dermatology-indications-adverse-events-and-controversies
#17
REVIEW
Cerrene N Giordano, Seth L Matarasso, David M Ozog
The use of neuromodulators for therapeutic and cosmetic indications has proven to be remarkably safe. While aesthetic and functional adverse events are uncommon, each anatomic region has its own set of risks of which the physician and patient must be aware before treatment. The therapeutic usages of botulinum toxins now include multiple specialties and multiple indications. New aesthetic indications have also developed, and there has been an increased utilization of combination therapies to combat the effects of global aging...
June 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28522038/injectable-and-topical-neurotoxins-in-dermatology-basic-science-anatomy-and-therapeutic-agents
#18
REVIEW
Cerrene N Giordano, Seth L Matarasso, David M Ozog
Botulinum toxin is a potentially deadly anaerobic bacterial toxin that acts by inhibiting release of acetylcholine at the neuromuscular junction, thereby inhibiting contraction of the exposed striated muscle. There are currently 4 botulinum toxin preparations approved by the US Food and Drug Administration (FDA): onabotulinumtoxin, abobotulinumtoxin, incobotulinumtoxin and rimabotulinumtoxin. While significant overlap exists, each product has unique properties and specifications, including dosing, diffusion, and storage...
June 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28521968/localized-myofascial-pain-responds-better-than-referring-myofascial-pain-to-botulinum-toxin-injections
#19
W A Abboud, S Hassin-Baer, M Joachim, N Givol, R Yahalom
Myofascial pain of the muscles of mastication is a common temporomandibular disorder. Patients unresponsive to conservative treatment modalities pose a therapeutic challenge to the treating clinician. The efficacy of intramuscular botulinum toxin injections for recalcitrant cases is still not well established due to mixed results from clinical trials. The Diagnostic Criteria of Temporomandibular Disorders (DC/TMD) classified chronic muscle pain broadly into a localized pattern (when pain is localized to the site of palpation or the muscle palpated) and a referring pattern (when the pain spreads beyond the boundary of the muscle being palpated)...
May 15, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28520679/knee-recurvatum-in-children-with-spastic-diplegic-cerebral-palsy
#20
Jeremy Bauer, K Patrick Do, Jing Feng, Rosemary Pierce, Michael Aiona
BACKGROUND: The purpose of this study is to determine which factors drive patients with diplegic cerebral palsy to walk without knee recurvatum despite hyperextension of the knee on physical examination. METHODS: A retrospective review was conducted of all data collected in the Gait Analysis Laboratory between 1999 and 2014. Patients with spastic diplegic cerebral palsy and at least 5 degrees of knee extension on clinical examination were identified for the study...
May 17, 2017: Journal of Pediatric Orthopedics
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