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Hu H, Kim SB, Wan J, Chan LKW, Lee AKW, Sydorchuk O, Jalali A, Corrêa MC, Kim JS, Yi KH. Anatomical Guidelines and Technical Tips for Neck Aesthetics with Botulinum Toxin. Arch Plast Surg 2024; 51:447-458. [PMID: 39346003 PMCID: PMC11436334 DOI: 10.1055/s-0044-1788284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/16/2024] [Indexed: 10/01/2024] Open
Abstract
Botulinum toxin can be used for various purposes to enhance neck aesthetics, addressing concerns such as platysmal bands, optimizing the cervicomental angle, preventing worsening of horizontal neckline and decolletage lines during aging, submandibular gland hypertrophy, and hypertrophied superior trapezius muscle. Understanding the anatomy of muscles such as the trapezius, platysma, and submandibular gland is crucial for achieving desirable outcomes with botulinum toxin administration. Techniques for injecting botulinum toxin into these muscles are discussed, emphasizing safety and efficacy. Specific injection points and methods are detailed for treating platysmal bands, optimizing the cervicomental angle, addressing submandibular gland hypertrophy, and managing hypertrophied superior trapezius muscle. Careful consideration of anatomical landmarks and potential complications is essential for successful botulinum toxin injections in these areas.
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Affiliation(s)
- Hyewon Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Soo-Bin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Jovian Wan
- Asia Pacific Aesthetic Academy, Hong Kong
| | | | | | | | | | | | | | - Kyu-Ho Yi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
- Maylin Clinic (Apgujeong), Seoul, Korea
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Muacevic A, Adler JR. The Development of Psychiatric Illness and Chemoprophylaxis of Botulinum Toxin in Migraine: A Narrative Review. Cureus 2022; 14:e32998. [PMID: 36712737 PMCID: PMC9879228 DOI: 10.7759/cureus.32998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/27/2022] [Indexed: 12/28/2022] Open
Abstract
A migraine is not just a headache. It is an extremely prevalent neurological condition marked by periodic episodes of unilateral headache, with more than 10 million cases yearly. Migraine often begins at the age of puberty. It substantially impacts the brain and, consequently, psychiatric behavior linked with frequent migraine attacks that may be moderate to severe in intensity. A crucial aspect of migraine variability is comorbidity with other neurological diseases, vascular diseases, and mental illnesses. Psychiatric disorders related to migraine include anxiety disorders, panic disorder, bipolar disorder, depression, etc. It is also estimated that people suffering from migraine are about five times more likely to develop depression than others without migraine. The stimulus for migraine is stress, lack of sleep, skipped meal or fasting, visual stimulation due to high intensity of light, auditory stimulus due to noise, and olfactory stimulus due to a pungent smell. A majority of patients suffer from migraine attacks triggered by noise, some due to visual stimulation, and a few due to perfumes or other odors that trigger their migraine. Diagnosis of this is primarily dependent on history taking and clinical evaluation. Migraine can be classified depending on whether an aura is present or absent. It can further be divided based on the frequency of headaches into episodic migraine or chronic migraine, which may be determined by the duration of the headache. The development of migraine is influenced by both genetics and the environment. It has a detrimental effect on children's quality of life. A comprehensive analysis of psychiatric illnesses in migraine contributes to early diagnosis and proper treatment of the disease. Also, having a healthy lifestyle (including exercise, a balanced diet, and enough sleep) seems to prevent and improve the condition. Headache in migraine is resistant to medical treatment but responds well to botulinum toxin. This review primarily focuses on the psychiatric issues like depression and anxiety that often accompany migraine. The article also highlights the effects of botulinum toxin on migraine.
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Cinone N, Santoro L, Spina S, Facciorusso S, Battaglia M, Baricich A, Marcogiuseppe P, Santamato A. Reasons and Determinants of BoNT-A Treatment Discontinuation in Patients Living with Spasticity: A 10-Year Retrospective Analysis. Toxins (Basel) 2022; 14:675. [PMID: 36287945 PMCID: PMC9609474 DOI: 10.3390/toxins14100675] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 10/28/2023] Open
Abstract
BACKGROUND The present study aimed to evaluate the reasons and determinants of BoNT-A discontinuation in patients with stroke, multiple sclerosis, spinal cord injury, and traumatic brain injury. METHODS It is a retrospective study of 56 discontinuer patients treated with botulinum toxin between January 2011 and December 2021. Discontinuation rates and their predictors were estimated using Kaplan-Meier, Log rank test, and Cox's regression method of analyses. RESULTS The mean age was 56.54 years, 53.57% were affected by post-stroke spasticity, 17.86% by spinal cord injury, 12.5% and 16.07% by traumatic brain injury and multiple sclerosis, respectively. The median discontinuation time was 5 months. The main reason for discontinuation were logistic problems (37%) and orthopedic surgeries or intrathecal baclofen (27%). Discontinuers were more likely to have severe spasticity (R = 1.785), have no pain (HR = 1.320), no access to rehabilitation services (HR = 1.402), and have cognitive impairment (HR = 1.403). CONCLUSIONS The main reasons for discontinuation are related to logistic issues (due to distance or the absence of an adequate caregiver) and surgical interventions for spasticity, including intrathecal baclofen. It is crucial to identify possible predictors of discontinuation to improve the effectiveness of a multidisciplinary management. The study confirms the crucial role of rehabilitation and caregivers in achieving better long-term outcomes.
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Affiliation(s)
- Nicoletta Cinone
- Spasticity and Movement Disorder Unit, Physical Medicine and Rehabilitation, Policlinico Riuniti, University of Foggia, Viale Pinto 1, 71122 Foggia, Italy
| | - Luigi Santoro
- Spasticity and Movement Disorder Unit, Physical Medicine and Rehabilitation, Policlinico Riuniti, University of Foggia, Viale Pinto 1, 71122 Foggia, Italy
| | - Stefania Spina
- Spasticity and Movement Disorder Unit, Physical Medicine and Rehabilitation, Policlinico Riuniti, University of Foggia, Viale Pinto 1, 71122 Foggia, Italy
| | - Salvatore Facciorusso
- Villa Beretta Rehabilitation Center, Valduce Hospital, Via Nazario Sauro 17, 23845 Costa Masnaga, Italy
| | - Marco Battaglia
- Physical Medicine and Rehabilitation, Department of Health Sciences, Università del Piemonte Orientale, viale Piazza d’armi 1, 28100 Novara, Italy
| | - Alessio Baricich
- Physical Medicine and Rehabilitation, Department of Health Sciences, Università del Piemonte Orientale, viale Piazza d’armi 1, 28100 Novara, Italy
| | - Pasqua Marcogiuseppe
- Spasticity and Movement Disorder Unit, Physical Medicine and Rehabilitation, Policlinico Riuniti, University of Foggia, Viale Pinto 1, 71122 Foggia, Italy
| | - Andrea Santamato
- Spasticity and Movement Disorder Unit, Physical Medicine and Rehabilitation, Policlinico Riuniti, University of Foggia, Viale Pinto 1, 71122 Foggia, Italy
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Yi KH, Lee HJ, Choi YJ, Lee K, Lee JH, Kim HJ. Anatomical guide for botulinum neurotoxin injection: Application to cosmetic shoulder contouring, pain syndromes, and cervical dystonia. Clin Anat 2020; 34:822-828. [PMID: 32996645 DOI: 10.1002/ca.23690] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 09/27/2020] [Accepted: 09/27/2020] [Indexed: 11/10/2022]
Abstract
INTRODUCTION This study proposes an ideal botulinum toxin injection point of the trapezius muscle for shoulder line contouring, pain management, and functional impairment. This study describes the intramuscular nerve branching in the trapezius muscle, providing essential information for botulinum neurotoxin injection. METHOD A modified Sihler's method was performed on the trapezius muscles (16 specimens). The intramuscular arborization areas were elucidated regarding the external occipital protuberance superiorly, spinous process of the 12th thoracic vertebra inferiorly and acromion of the scapula. RESULT The intramuscular neural distribution for the superior, middle, and inferior regions of the trapezius muscle had the greatest arborized patterns in the horizontal 1/5-2/5 and vertical 2/10-4/10 sections, the horizontal 1/5-3/5 and vertical 4/10-5/10 sections, and the horizontal 1/5-2/5 and vertical 5/10-7/10 sections, respectively. DISCUSSION We propose that BoNT treatments should be directed to the horizontal 1/5-2/5 and vertical 2/10-4/10 sections of the superior trapezius, the horizontal 1/5-3/5 and vertical 4/10-5/10 sections of the middle trapezius and the horizontal 1/5-2/5 and vertical 5/10-7/10 sections of the inferior trapezius. Additionally, injective treatment at the horizontal 2/5-3/5 and vertical 2/10-4/10 nerve entry points should be avoided to prevent nerve trunk damage causing paralysis. According to our guidelines, clinicians can ensure minimal dose injections and fewer adverse effects in botulinum neurotoxin injective treatment.
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Affiliation(s)
- Kyu-Ho Yi
- Inje County Public Health Center, Inje, Republic of Korea.,Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Hyung-Jin Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - You-Jin Choi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Kangwoo Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Ji-Hyun Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Hee-Jin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea.,Department of Materials Science & Engineering, College of Engineering, Yonsei University, Seoul, Republic of Korea
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Kwon HJ, Yang HM, Won SY. Intramuscular innervation patterns of the splenius capitis and splenius cervicis and their clinical implications for botulinum toxin injections. Clin Anat 2020; 33:1138-1143. [PMID: 31894602 DOI: 10.1002/ca.23553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/26/2019] [Accepted: 12/28/2019] [Indexed: 11/08/2022]
Abstract
INTRODUCTION The purpose of this study was to clearly characterize the intramuscular nerve distributions of the splenius capitis and splenius cervicis muscles that are both responsible for the onset of a chronic tension type headache and to use this information to identify the effective botulinum toxin (BoNT) injection sites. MATERIALS AND METHODS Ten splenius capitis and splenius cervicis specimens were subjected to Sihler's staining to reveal intramuscular nerve arborization patterns and determined the optimal location for BoNT injection. RESULTS Nerve distribution patterns in the splenius capitis were identified as nerve pathways that travel down toward the origin point and others that travel up toward the insertion point. This neuromuscular innervation from the central (50%) point was distributed evenly in these two directions. The neural pathways of splenius cervicis traveled vertically from the insertion point to the origin point. If the length from the muscle origin point to the insertion point is normalized to 100%, motor neurons innervate the muscle from around the 30% to the 70% point. CONCLUSIONS The safest and most-effective BoNT injection sites for the splenius capitis and splenius cervicis were found at around the 50% point and the 30% to the 70% point, respectively.
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Affiliation(s)
- Hyun-Jin Kwon
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hun-Mu Yang
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea.,Surgical Anatomy Education Centre at the Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung-Yoon Won
- Department of Occupational Therapy, Semyung University, Jecheon, Republic of Korea
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Spontaneous Intracranial Hypotension Induced Headaches and Onabotulinum Toxin A: A Case Report. Can J Neurol Sci 2018; 45:111-113. [DOI: 10.1017/cjn.2017.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Choi YJ, Lee WJ, Lee HJ, Lee KW, Kim HJ, Hu KS. Effective Botulinum Toxin Injection Guide for Treatment of Temporal Headache. Toxins (Basel) 2016; 8:toxins8090265. [PMID: 27618099 PMCID: PMC5037491 DOI: 10.3390/toxins8090265] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 08/31/2016] [Accepted: 09/05/2016] [Indexed: 12/27/2022] Open
Abstract
This study involved an extensive analysis of published research on the morphology of the temporalis muscle in order to provide an anatomical guideline on how to distinguish the temporalis muscle and temporalis tendon by observing the surface of the patient’s face. Twenty-one hemifaces of cadavers were used in this study. The temporalis muscles were dissected clearly for morphological analysis between the temporalis muscle and tendon. The posterior border of the temporalis tendon was classified into three types: in Type I the posterior border of the temporalis tendon is located in front of reference line L2 (4.8%, 1/21), in Type II it is located between reference lines L2 and L3 (85.7%, 18/21), and in Type III it is located between reference lines L3 and L4 (9.5%, 2/21). The vertical distances between the horizontal line passing through the jugale (LH) and the temporalis tendon along each of reference lines L0, L1, L2, L3, and L4 were 29.7 ± 6.8 mm, 45.0 ± 8.8 mm, 37.7 ± 11.1 mm, 42.5 ± 7.5 mm, and 32.1 ± 0.4 mm, respectively. BoNT-A should be injected into the temporalis muscle at least 45 mm vertically above the zygomatic arch. This will ensure that the muscle region is targeted and so produce the greatest clinical effect with the minimum concentration of BoNT-A.
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Affiliation(s)
- You-Jin Choi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, South Korea.
| | - Won-Jae Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, South Korea.
| | - Hyung-Jin Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, South Korea.
| | - Kang-Woo Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, South Korea.
| | - Hee-Jin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, South Korea.
| | - Kyung-Seok Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, South Korea.
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Stidham KR, Solomon PH, Roberson JB. Evaluation of botulinum toxin A in treatment of tinnitus. Otolaryngol Head Neck Surg 2016; 132:883-9. [PMID: 15944559 DOI: 10.1016/j.otohns.2005.02.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVES: The purpose of this study was to evaluate the potential benefit of botulinum toxin A in treatment of tinnitus with a prospective, double-blinded study design. STUDY DESIGN: Double-blinded, prospective clinical study. METHODS: Thirty patients with tinnitus were randomly placed into 1 of 2 treatment arms. Patients either received botulinum toxin A (20 to 50 units) or saline injection at the first treatment, and the opposite treatment 4 months later. Prospective data including tinnitus matching test, tinnitus handicap inventory (THI), tinnitus rating scale (TRS), and patient questionnaires were obtained over a 4-month period after each injection. RESULTS: Twenty-six patients completed both injections and follow-up and were included in data analysis. After botulinum toxin A, subjective tinnitus changes included 7 patients improved, 3 worsened, and 16 unchanged. Following placebo, 2 patients were improved, 7 worsened, and 17 unchanged. Comparison of the treatment and placebo groups was statistically significant (P >0.005) when including better, worse, and same effects. A significant decrease in THI scores between pretreatment and 4 month postbotulinum toxin A injection ( P = 0.0422) was recorded. None of the other comparisons of pretreatment to 1 month, or pretreatment to 4 months were significantly different. CONCLUSIONS: This small study found improvement in THI scores and patient subjective results after botulinum toxin A injection compared with placebo, suggesting a possible benefit of botulinum toxin A in tinnitus management. Larger studies need to be completed to further evaluate potential benefits of botulinum toxin A in treatment of this difficult problem.
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Lee HJ, Choi KS, Won SY, Apinuntrum P, Hu KS, Kim ST, Tansatit T, Kim HJ. Topographic Relationship between the Supratrochlear Nerve and Corrugator Supercilii Muscle--Can This Anatomical Knowledge Improve the Response to Botulinum Toxin Injections in Chronic Migraine? Toxins (Basel) 2015; 7:2629-38. [PMID: 26193317 PMCID: PMC4516933 DOI: 10.3390/toxins7072629] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 12/16/2022] Open
Abstract
Chronic migraine has been related to the entrapment of the supratrochlear nerve within the corrugator supercilii muscle. Recently, research has shown that people who have undergone botulinum neurotoxin A injection in frontal regions reported disappearance or alleviation of their migraines. There have been numerous anatomical studies conducted on Caucasians revealing possible anatomical problems leading to migraine; on the other hand, relatively few anatomical studies have been conducted on Asians. Thus, the aim of the present study was to determine the topographic relationship between the supratrochlear nerve and corrugator supercilii muscle in the forehead that may be the cause of migraine. Fifty-eight hemifaces from Korean and Thai cadavers were used for this study. The supratrochlear nerve entered the corrugator supercilii muscle in every case. Type I, in which the supratrochlear nerve emerged separately from the supraorbital nerve at the medial one-third portion of the orbit, was observed in 69% (40/58) of cases. Type II, in which the supratrochlear nerve emerged from the orbit at the same location as the supraorbital nerve, was observed in 31% (18/58) of cases.
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Affiliation(s)
- Hyung-Jin Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea.
| | - Kwang-Seok Choi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea.
| | - Sung-Yoon Won
- Department of Occupational Therapy, Semyung University, Semyungro 65, Jecheonsi, Chungcheongbuk-do 390-711, Korea.
| | - Prawit Apinuntrum
- The Chula Soft Cadaver Surgical Training Center and Department of Anatomy, Faculty of Medicine, Chulalongkorn University, 254 Phyathai Road, Patumwan 10330, Bangkok, Thailand.
| | - Kyung-Seok Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea.
| | - Seong-Taek Kim
- Department of Oral Medicine, Temporomandibular Joint and Orofacial Pain Clinic, Yonsei University College of Dentistry, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea.
| | - Tanvaa Tansatit
- The Chula Soft Cadaver Surgical Training Center and Department of Anatomy, Faculty of Medicine, Chulalongkorn University, 254 Phyathai Road, Patumwan 10330, Bangkok, Thailand.
| | - Hee-Jin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea.
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Wheeler A, Smith HS. Botulinum toxins: mechanisms of action, antinociception and clinical applications. Toxicology 2013; 306:124-46. [PMID: 23435179 DOI: 10.1016/j.tox.2013.02.006] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 02/07/2013] [Accepted: 02/10/2013] [Indexed: 10/27/2022]
Abstract
Botulinum toxin (BoNT) is a potent neurotoxin that is produced by the gram-positive, spore-forming, anaerobic bacterium, Clostridum botulinum. There are 7 known immunologically distinct serotypes of BoNT: types A, B, C1, D, E, F, and G. Clostridum neurotoxins are produced as a single inactive polypeptide chain of 150kDa, which is cleaved by tissue proteinases into an active di-chain molecule: a heavy chain (H) of ∼100 kDa and a light chain (L) of ∼50 kDa held together by a single disulfide bond. Each serotype demonstrates its own varied mechanisms of action and duration of effect. The heavy chain of each BoNT serotype binds to its specific neuronal ecto-acceptor, whereby, membrane translocation and endocytosis by intracellular synaptic vesicles occurs. The light chain acts to cleave SNAP-25, which inhibits synaptic exocytosis, and therefore, disables neural transmission. The action of BoNT to block the release of acetylcholine botulinum toxin at the neuromuscular junction is best understood, however, most experts acknowledge that this effect alone appears inadequate to explain the entirety of the neurotoxin's apparent analgesic activity. Consequently, scientific and clinical evidence has emerged that suggests multiple antinociceptive mechanisms for botulinum toxins in a variety of painful disorders, including: chronic musculoskeletal, neurological, pelvic, perineal, osteoarticular, and some headache conditions.
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Affiliation(s)
- Anthony Wheeler
- The Neurological Institute, 2219 East 7th Street, Charlotte, NC 28204, United States.
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Treatment of frozen shoulder with intra-articular injection of botulinum toxin in shoulder joints. Med Hypotheses 2011; 77:305-7. [PMID: 21640488 DOI: 10.1016/j.mehy.2011.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Accepted: 05/02/2011] [Indexed: 11/21/2022]
Abstract
Frozen shoulder, or adhesive capsulitis, is a disease of chronic inflammation and fibrosis involving the shoulder joints. The disease is challenging in clinical practice due to painful treatment course, with disease evolution usually lasting weeks or even months, causing significant discomfort and functional loss. Botulinum toxin (BTX) has been discovered to possess abilities in pain management at various clinical diseases. The actual mechanism is still under investigation, and involves inhibition of neurotransmitter release. In addition, BTX is also found to retard process of fibrosis, which is also a key issue in pathogenesis of frozen shoulder. Therefore, we hypothesize that intra-articular injection of BTX can be an effective alternative for treatment of frozen shoulder.
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Lalli S, Albanese A. The diagnostic challenge of primary dystonia: evidence from misdiagnosis. Mov Disord 2010; 25:1619-26. [PMID: 20629166 DOI: 10.1002/mds.23137] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Although the understanding of dystonia has improved in recent years, primary dystonia is still insufficiently recognized and patients may not receive the correct diagnosis, leading to transient or permanent misclassification of their symptoms. We reviewed cases of primary dystonia who were at first misdiagnosed and analyzed the reasons why the correct diagnosis was first missed and later retained. Primary dystonia is misdiagnosed mainly, but not exclusively, in favor of other movement disorders: Parkinson's disease (PD), essential tremor, myoclonus, tics, psychogenic movement disorder (PMD), and even headache or scoliosis. Accounts are more numerous for PD and PMD, where diagnostic tests, such as DAT scan and psychological assessment, support clinical orientation. The correct diagnosis was achieved in all cases following the recognition of inconsistencies in the first judgment and of distinctive clinical features of dystonia. These clues have been collected here and assembled into a diagnostic epitome.
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Affiliation(s)
- Stefania Lalli
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
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Effect of Botulinum Toxin on Pressure Pain Threshold and EMG Power Spectrum of Masseter Muscle During Sustained Fatiguing Contraction. Am J Phys Med Rehabil 2010; 89:736-43. [DOI: 10.1097/phm.0b013e3181ec9463] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gazerani P, Au S, Dong X, Kumar U, Arendt-Nielsen L, Cairns BE. Botulinum neurotoxin type A (BoNTA) decreases the mechanical sensitivity of nociceptors and inhibits neurogenic vasodilation in a craniofacial muscle targeted for migraine prophylaxis. Pain 2010; 151:606-616. [PMID: 20728992 DOI: 10.1016/j.pain.2010.07.029] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 07/14/2010] [Accepted: 07/27/2010] [Indexed: 11/24/2022]
Abstract
The mechanism by which intramuscular injection of BoNTA into the craniofacial muscles decreases migraine headaches is not known. In a blinded study, the effect of BoNTA on the mechanical and chemical responsiveness of individual temporalis muscle nociceptors and muscle neurogenic vasodilation was investigated in female rats. Mechanical threshold was measured for 3h following intramuscular injection of BoNTA or vehicle, and for 10 min after a subsequent injection of the algogen glutamate. Injection of BoNTA significantly increased the mechanical threshold of muscle nociceptors without altering the muscle surface temperature and blocked glutamate-induced mechanical sensitization and neurogenic vasodilation. None of these effects were reproduced by pancuronium-induced muscle paralysis. Western blot analysis of temporalis muscles indicated that BoNTA significantly decreased SNAP-25. Measurement of interstitial glutamate concentration with a glutamate biosensor indicated that BoNTA significantly reduced glutamate concentrations. The mechanical sensitivity of muscle nociceptors is modulated by glutamate concentration through activation of peripheral NMDA receptors. Immunohistochemical experiments were conducted and they indicated that half of the NMDA-expressing temporalis nerve fibers co-expressed substance P or CGRP. Additional electrophysiology experiments examined the effect of antagonists for NMDA, CGRP and NK1 receptors on glutamate-induced effects. Glutamate-induced mechanical sensitization was only blocked by the NMDA receptor antagonist, but muscle neurogenic vasodilation was attenuated by NMDA or CGRP receptor antagonists. These data suggest that injection of BoNTA into craniofacial muscles acts to decrease migraine headaches by rapidly decreasing the mechanical sensitivity of temporalis muscle nociceptors through inhibition of glutamate release and by attenuating the provoked release of CGRP from muscle nociceptors.
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Affiliation(s)
- Parisa Gazerani
- The Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada Center for Sensory-Motor Interaction (SMI), Dept. of Health Science and Technology, Aalborg University, Aalborg, Denmark
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Shuhendler AJ, Lee S, Siu M, Ondovcik S, Lam K, Alabdullatif A, Zhang X, Machado M, Einarson TR. Efficacy of Botulinum Toxin Type A for the Prophylaxis of Episodic Migraine Headaches: A Meta-analysis of Randomized, Double-Blind, Placebo-Controlled Trials. Pharmacotherapy 2009; 29:784-91. [DOI: 10.1592/phco.29.7.784] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dong M, Liu H, Tepp WH, Johnson EA, Janz R, Chapman ER. Glycosylated SV2A and SV2B mediate the entry of botulinum neurotoxin E into neurons. Mol Biol Cell 2008; 19:5226-37. [PMID: 18815274 DOI: 10.1091/mbc.e08-07-0765] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Botulinum neurotoxin E (BoNT/E) can cause paralysis in humans and animals by blocking neurotransmitter release from presynaptic nerve terminals. How this toxin targets and enters neurons is not known. Here we identified two isoforms of the synaptic vesicle protein SV2, SV2A and SV2B, as the protein receptors for BoNT/E. BoNT/E failed to enter neurons cultured from SV2A/B knockout mice; entry was restored by expressing SV2A or SV2B, but not SV2C. Mice lacking SV2B displayed reduced sensitivity to BoNT/E. The fourth luminal domain of SV2A or SV2B alone, expressed in chimeric receptors by replacing the extracellular domain of the low-density lipoprotein receptor, can restore the binding and entry of BoNT/E into neurons lacking SV2A/B. Furthermore, we found disruption of a N-glycosylation site (N573Q) within the fourth luminal domain of SV2A rendered the mutant unable to mediate the entry of BoNT/E and also reduced the entry of BoNT/A. Finally, we demonstrate that BoNT/E failed to bind and enter ganglioside-deficient neurons; entry was rescued by loading exogenous gangliosides into neuronal membranes. Together, the data reported here demonstrate that glycosylated SV2A and SV2B act in conjunction with gangliosides to mediate the entry of BoNT/E into neurons.
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Affiliation(s)
- Min Dong
- Howard Hughes Medical Institute and Department of Physiology, University of Wisconsin, Madison, WI 53706, USA
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Affiliation(s)
- B Lee Peterlin
- Department of Neurology, Drexel University College of Medicine, Philadelphia, PA, USA
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Abstract
Since its introduction into clinical medicine in 1980, botulinum toxin has become a major therapeutic drug with applications valuable to many medical sub-specialties. Its use was spearheaded in ophthalmology where its potential applications have expanded to cover a broad range of visually related disorders. These include dystonic movement disorders, strabismus, nystagmus, headache syndromes such as migraine, lacrimal hypersecretion syndromes, eyelid retraction, spastic entropion, compressive optic neuropathy, and, more recently, periorbital aesthetic uses. Botulinum toxin is a potent neurotoxin that blocks the release of acetylcholine at the neuromuscular junction of cholinergic nerves. When used appropriately it will weaken the force of muscular contraction, or inhibit glandular secretion. Recovery occurs over 3 to 4 months from nerve terminal sprouting and regeneration of inactivated proteins necessary for degranualtion of acetylcholine vesicles. Complications are related to chemodenervation of adjacent muscle groups, injection technique, and immunological mechanisms.
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Affiliation(s)
- Jonathan J Dutton
- Department of Ophthalmology, University of North Carolina, Chapel Hill, NC 27599-7040, USA
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Volcy M, Tepper SJ, Rapoport AM, Sheftell FD, Bigal ME. Botulinum toxin A for the treatment of greater occipital neuralgia and trigeminal neuralgia: a case report with pathophysiological considerations. Cephalalgia 2006; 26:336-40. [PMID: 16472343 DOI: 10.1111/j.1468-2982.2005.00959.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M Volcy
- The New England Centre for Headache, Stamford, CT 06902-1251, USA
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Jankovic J, Esquenazi A, Fehlings D, Freitag F, Lang AM, Naumann M. Evidence-Based Review of Patient-Reported Outcomes With Botulinum Toxin Type A. Clin Neuropharmacol 2004; 27:234-44. [PMID: 15602105 DOI: 10.1097/01.wnf.0000145508.84389.87] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This review systematically examines the effects of botulinum toxin type A (BTX-A) on patient-reported outcomes across disorders using evidence-based criteria. The evidence provided by these studies ranged from randomized, controlled trials to case series. The effects of BTX-A on quality of life or global treatment outcomes were assessed in 48 studies across 16 different conditions. All but 7 of these reported benefits of BTX-A over baseline or the comparator condition (placebo or other treatment). The effects of BTX-A on impairment, activities, or participation were assessed in 46 studies across 17 different conditions. All but 4 reported benefits of BTX-A over baseline or the comparison group. The effects of BTX-A on satisfaction or preference were assessed in 14 studies across 11 different conditions, all of which reported high rates of satisfaction with BTX-A or preference over the comparator. These studies provide evidence that BTX-A exerts meaningful benefits on the quality of life of patients treated with this biologic agent.
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Affiliation(s)
- Joseph Jankovic
- Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, Texas 77030, USA.
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