It takes a village to raise a child. My family members are well aware of how I cope with migraine. They make themselves available to help my children and me often. I rely on people to drive me to doctor’s appointments as well as take my children to sports practices. I arrange carpools and am honest with the people in our lives about how a migraine attack can be unpredictable and suddenly change plans. Every year, I alert my children’s teachers of my chronic migraine and ask them to watch and listen for signs of migraine or stress in my children. I worry about them physically and emotionally and so far, they have handled my disease as they would any other illness. By being honest about the help I need, I find that the people in my life are better equipped to follow through. Many people would like to help but don’t know how. I have given up pride and allowed others to help, which inevitably takes stress away from us all.

Allergan PLC (AGN) is a large market cap ($65B) biopharmaceutical company with a pipeline of innovative and generic therapeutics for diseases affecting the eyes, bowel, lungs, skin, urogenital systems and brain. Through the acquisition of Tobira Pharmaceuticals and its assets including cenicriviroc (CVC), Allergan is one of the leaders in the clinical development of anti-NASH therapeutics (the focus of this article).
The studies using Botox for depression, like other research into Botox's off-label potential, were so encouraging that they caught the attention of Allergan. In Rosenthal and Finzi's research, 74 people with major depressive disorder were randomly assigned to receive Botox injections or a placebo. Six weeks later, 52% of the people who received Botox experienced a drop in reported symptoms, compared with 15% of the people given a placebo. "Over 50% of people responding is a high number," says Finzi. "These are people who have already tried other treatments, and they are significantly depressed."
The following adverse reactions with BOTOX 200 Units were reported at any time following initial injection and prior to re -injection or study exit (median duration of exposure was 44 weeks): urinary tract infections (49%), urinary retention (17%), constipation (4%), muscular weakness (4%), dysuria (4%), fall (3%), gait disturbance (3%), and muscle spasm (2%).
Make sure your practitioner is very experienced at Botox injections and is a respected medical professional. A salon stylist, for example, is not an appropriate person to administer Botox, because he or she would not have emergency equipment or sufficient medical knowledge if something went wrong. Some disreputable people have reportedly administered injections that were over- or under-diluted with saline, as well as counterfeit solutions that didn't contain Botox at all.

Botox stays only where injected, it does not roam through the body. "If I inject it in your face, it's not going to work [or show up in] your toe," says Rowe. "It does not have a systemic effect." However, it may migrate up to 3 cm from where it was injected. But even if some molecules were to go into the bloodstream and travel to distant sites in the body, the cosmetic doses (typically less than 100 units) used are significantly lower than the toxic dose that would be harmful systemically (2,500-3,000 units).
Unlike some resurfacing or surgical procedures, after which there is possible pigmentation or scarring, when Botox is done correctly, it can be done on all skin tones. “This is a procedure [and] product that crosses all divides,” says Dr. Matarasso. “Men, women, Caucasian, African-American, Asian, Indian. I don’t think there is a demographic that has not enjoyed the benefit of this product.”

When most people see the results of Botox, they are extremely pleased. Botox’s ability to iron out wrinkles is pretty impressive. The fine lines and wrinkles that were all you could see in the mirror appear much less severe and the overall appearance is refreshed and more relaxed and rejuvenated. Botox results typically last up to six months. Botox also acts as a preventative measure for wrinkles, as it prevents repetitive folding of the skin that come from the frequency of making expressions. By injecting Botox before wrinkles even form, you’re setting the stage for a younger look for years to come.
On July 7, 2015, the company acquired the rights to the late stage CGRP migraine portfolio of Merck & Co, as well as two experimental drugs (MK-1602 and MK-8031) for an upfront payment of $250 million.[12] On August 10, the company acquired Oculeve for $125 million.[13] On August 31, the company acquired Naurex for an upfront payment of $560 million.[14] On October 19, the company acquired AqueSys, developer of ocular implants that reduce intraocular pressure associated with glaucoma, for an initial payment of $300 million.[15] On October 1, the company acquired Kythera Biopharmaceuticals, a company focused on the medical aesthetics market, for $2.1 billion.[16] On November 4 the company announced the acquisition of Northwood Medical Innovation, developer of earFold, a medical device to correct protruding ears.[17] On November 25, 2015, the company announced it would partner with Rugen Therapeutic to develop new therapies for autism spectrum disorder, rabies and obsessive compulsive disorder.[18]
Program Terms, Conditions, and Eligibility Criteria: 1. This offer is good for use only with a valid prescription for BOTOX® (onabotulinumtoxinA). 2. Based on insurance coverage, Chronic Migraine patients can receive up to $700 off per treatment for up to 5 treatments in 2018. All treatments must be received during 2018. Maximum savings limit of $3500 per year for people with Chronic Migraine applies; patient out-of-pocket expense may vary. 3. This offer is not valid for use by patients enrolled in Medicare, Medicaid, or other federal or state programs (including any state pharmaceutical assistance programs), or private indemnity or HMO insurance plans that reimburse you for the entire cost of your prescription drugs. Patients may not use this offer if they are Medicare-eligible and enrolled in an employer-sponsored health plan or prescription drug benefit program for retirees. This offer is not valid for cash-paying patients. 4. This offer is valid for up to 5 treatments per year. Offer applies only to treatment received before the program expires on 12/31/18. 5. Offer is valid only for BOTOX® and BOTOX® treatment-related costs not covered by insurance. 6. A BOTOX® Savings Program check will be provided upon approval of a claim. The claim must be submitted with treatment details from an Explanation of Benefits (EOB) or a Specialty Pharmacy Provider (SPP) receipt. (If the BOTOX® prescription was filled by a Specialty Pharmacy Provider, both EOB and SPP details must be provided.) All claims must be submitted within 90 days of the date of EOB receipt. You may be required to provide a copy of your EOB or SPP receipt for your claim to be approved. 7. A BOTOX® Savings Program check may be sent either directly to you or to your selected healthcare provider who provided treatment. For payment to be made directly to your healthcare provider, you must authorize an assignment of benefit during each claim submission. You are not obligated to assign your BOTOX® Savings Program benefit to your healthcare provider to participate in the program. 8. Allergan reserves the right to rescind, revoke, or amend this offer without notice. 9. Offer good only in the USA, including Puerto Rico, at participating retail locations. 10. Void where prohibited by law, taxed, or restricted. 11. This offer is not health insurance.12. By participating in the BOTOX® Savings Program, you acknowledge that you are an eligible patient and that you understand and agree to comply with the terms and conditions of this offer.
Botulinum toxin is a purified substance that's derived from bacteria. Injections of botulinum toxin block the nerve signals to the muscle in which it was injected. Without a signal, the muscle is not able to contract. The end result is diminished unwanted facial wrinkles or appearance. Commonly known types of botulinum toxin type A injections include Botox®, Dysport® and Xeomin®.
"Botox is a toxin that is extracted from a certain bacteria. It's been used for a couple of hundred years in medicine. It was first used in neurological conditions rather than cosmetic ones. It was first approved to treat spasms of the face and eye muscles. Only later was it discovered coincidentally that it could world for cosmetic purposes, like wrinkles," he says.

In 1986, Scott's micromanufacturer and distributor of Botox was no longer able to supply the drug because of an inability to obtain product liability insurance. Patients became desperate, as supplies of Botox were gradually consumed, forcing him to abandon patients who would have been due for their next injection. For a period of four months, American blepharospasm patients had to arrange to have their injections performed by participating doctors at Canadian eye centers until the liability issues could be resolved.[48]
Exactly how soon you'll need to return for more Botox injections is really up to you. Some patients prefer to return for a touch up of Botox cosmetic after just three months, or at the very first sign of fine lines and facial wrinkles returning. Others prefer to wait six months or more until the effects of the previous injection have completely faded away.
It's a remarkable arc for a drug that only a few years ago was associated with Hollywood cocktail parties where guests came for Bellinis and left with a forehead full of Botox injections. It highlights the advances that can occur when physicians, seeking new therapies for their patients, explore creative new uses for approved drugs--basically, real-world experiments that take place largely beyond the reach of federal regulators. That, in turn, raises questions about the risks of deploying medicines in ways that have not been fully vetted. But it happens all the time.
Some service providers offer financing options to make the procedure affordable. The Botox Cosmetic product is eligible for the Brilliant Distinctions Program that helps the members through savings, rebates, bonus points, and other perks. But there are also some providers with their own rebate program that gives a discount on the next procedure by 10% to 25%. Coupons are available in forms of discount, promo or free service for loyal customers. Also, a large volume of Botox used in the treatment, there is a possibility to avail discounted price of the Botox per unit.
Botox, or onabotulinumtoxinA, is used for three main purposes: muscle spasm control, severe underarm sweating and cosmetic improvement. In this article we concentrate on the third use, achieved with the product called Botox Cosmetic, which contains botulinum toxin type A (the active ingredient), human albumin (a protein found in human blood plasma) and sodium chloride.
The most frequently reported adverse reactions following injection of BOTOX® for Chronic Migraine vs placebo include, respectively: neck pain (9% vs 3%), headache (5% vs 3%), eyelid ptosis (4% vs < 1%), migraine (4% vs 3%), muscular weakness (4% vs < 1%), musculoskeletal stiffness (4% vs 1%), bronchitis (3% vs 2%), injection-site pain (3% vs 2%), musculoskeletal pain (3% vs 1%), myalgia (3% vs 1%), facial paresis (2% vs 0%), hypertension (2% vs 1%), and muscle spasms (2% vs 1%).
Getting Botox takes only a few minutes and no anesthesia is required. Botox is injected with a fine needle into specific muscles with only minor discomfort. It generally takes three to seven days to take full effect and it is best to avoid alcohol at least one week prior to treatment. Aspirin and anti-inflammatory medications should be stopped two weeks before treatment as well in order to reduce bruising.
The Allergan Foundation is proud to support charitable organizations and programs having a Bold impact on communities where Allergan employees live and work. Community Grant applications are considered annually from qualified U.S.-based tax-exempt public charities with innovative and leading programs and services, well-defined goals, a commitment to maximizing resources, and a reputation for meeting objectives and reporting measured results. The Allergan Foundation is primarily focused on supporting programs that improve the health and well-being of our communities.
This product contains albumin, a derivative of human blood. Based on effective donor screening and product manufacturing processes, it carries an extremely remote risk for transmission of viral diseases and variant Creutzfeldt-Jakob disease (vCJD). There is a theoretical risk for transmission of Creutzfeldt-Jakob disease (CJD), but if that risk actually exists, the risk of transmission would also be considered extremely remote. No cases of transmission of viral diseases, CJD or vCJD have ever been identified for licensed albumin or albumin contained in other licensed products.
Who is injecting your Botox? Injecting Botox is deceptively easy. After all, it looks like the nurse or physician just takes a little fluid and squirts into facial muscles, and Walla ! Perfection! The answer is No! You should choose a specialist with years of experience and the ability to assess your facial features to create the best treatment plan possible. Because when Botox is injected in the wrong place it can produce unwanted side-effects that you might find disturbing. For instance if the injector “chases” a wrinkle across your forehead and it happens to be too close to your central eyebrow then the Botox or Dysport can drift downward inhibiting a muscle that lifts your eyelid resulting in a drooped upper eyelid. I know you don’t want that! Or if the practitioner injects only your “11” frown lines between your brows and does not inject other areas of your brow to balance out the effect then you may get a “boomerang”brow – a “Spock”-like overarched  brow that looks hideous. So like everything else experience counts but more experience usually translates into a more expensive treatment sessions. However, avoiding complications can save you money and aggravation in the long run.

Wrinkles, whether they be fine line or deep furrows, typically appear on areas of the body that receive a high amount of exposure to the sun. Smoking, light skin type, hairstyle, the way you dress, your occupational and recreational habits, and heredity are all factors that promote wrinkling. Medical treatments for wrinkles include antioxidants, moisturizers, alpha-hydroxy acids, and vitamin A acid. Cosmetic procedures that treat wrinkles include dermabrasion, microdermabrasion, glycolic acid peels, laser resurfacing, Botox, and fillers.
The initial listed doses of the reconstituted BOTOX [see Preparation And Dilution Technique] typically create paralysis of the injected muscles beginning one to two days after injection and increasing in intensity during the first week. The paralysis lasts for 2-6 weeks and gradually resolves over a similar time period. Overcorrections lasting over six months have been rare. About one half of patients will require subsequent doses because of inadequate paralytic response of the muscle to the initial dose, or because of mechanical factors such as large deviations or restrictions, or because of the lack of binocular motor fusion to stabilize the alignment .
During a recent therapy session, one of Dr. Norman Rosenthal's regulars said he was considering suicide. It wasn't the first time the patient had entertained the thought, and even though he was on antidepressants and always kept up with his appointments, Rosenthal, a licensed psychiatrist with a private practice in North Bethesda, Md., wanted to offer his patient something else.

Extraocular muscles adjacent to the injection site can be affected, causing vertical deviation, especially with higher do ses of BOTOX. The incidence rates of these adverse effects in 2058 adults who received a total of 3650 injections for horizontal strabismus was 17%. The incidence of ptosis has been reported to be dependent on the location of the injected muscles, 1% after inferior rectus injections, 16% after horizontal rectus injections and 38% after superior rectus injections.
Onabotulinumtoxin A (trade name Botox) received FDA approval for treatment of chronic migraines on October 15, 2010. The toxin is injected into the head and neck to treat these chronic headaches. Approval followed evidence presented to the agency from two studies funded by Allergan showing a very slight improvement in incidence of chronic migraines for migraine sufferers undergoing the Botox treatment.[86][87]

Kybella helps patients lose their dreaded double chin and regain the taut, sculpted profile of their youth. The ingredients in Kybella are naturally made by the body, which means that you’re very likely to be satisfied with the results. It works by destroying the fat cells under the chin, making them unable to store fat any longer. Each treatment only requires 15-20 minutes, which leaves enough time to grab some sushi before you head back to the office. You’ll pay out somewhere between $1200 and $1800, but a chin tuck can cost anywhere from $1500 to $4000. Plus, Kybella doesn’t require the healing time that traditional skin liposuction does.
Children do very well after having this procedure in our clinic and are not upset when they leave. We rarely use sedation. We use distraction and a quick injection method instead. In rare cases, localization of a muscle may be needed using an electromyograph (EMG) machine or electric stimulator. If this is needed we will discuss this before scheduling the injections.
Two years later, Allergan bought Oculinum for $9 million and changed the drug's name to Botox. At the time, Allergan was primarily an ocular-care company that sold products like contact-lens cleaners and prescription solutions for dry eyes, bringing in about $500 million in annual sales. Allergan says it saw Botox as a drug for a niche population: it's estimated that 4% of people in the U.S. have crossed eyes, for which the drug was initially approved, and Allergan made about $13 million in sales from the drug by the end of 1991.

Some industry insiders say it's not unusual, if still legally murky, for drug-company representatives and doctors to share information with one another about the different ways an approved drug may be used. If a doctor notices that, say, a treatment for crossed eyes also "takes the lines out," he may mention it to the representative from whom he buys the drugs. That rep may share that with another of his clients, and so on.

In patients who are not catheterizing, post-void residual (PVR) urine volume should be assessed within 2 weeks post-treatment and periodically as medically appropriate up to 12 weeks, particularly in patients with multiple sclerosis or diabetes mellitus. Depending on patient symptoms, institute catheterization if PVR urine volume exceeds 200 mL and continue until PVR falls below 200 mL. Instruct patients to contact their physician if they experience difficulty in voiding as catheterization may be required.
Sarah of My Migraine Life is a mom living with chronic migraine and daily headaches who has tried a gamete of medications, alternative therapies and lifestyle changes. These experiences led her to write “My Migraine Life,” a website for people living with migraine and their caretakers devoted to telling stories, raising awareness, giving support, product reviews and more. My Migraine Life is a partner of the American Migraine Foundation.
On February 1, 2017, the company acquired LifeCell, a specialist in regenerative medicine, for $2.9 billion.[32] On April 28, the company acquired Zeltiq Aesthetics, marketer of a cryolipolysis procedure, for $2.4 billion.[33] On June 7, the company announced the acquisition of Keller Medical, a company that manufactures devices for use during breast augmentation surgery.[34] On December 12, the company announced the acquisition of Repros Therapeutics, a developer of drugs for reproductive system diseases.[35]
Most practices have a flat cost for each injection of BOTOX® Cosmetic, though some will break it down by “units” used per treatment. Flat rates are usually somewhere between $300 and $1000, while per-unit rates are usually around $10-15 per unit. Though the BOTOX® Cosmetic price paid by physicians is normally about $400 for each vial (each vial contains 100 units, or enough for about 4 or 5 treatments), the vial must be used within a few hours of opening, so if the entire vial is not used, the physician will often have to throw the rest out.
Extraocular muscles adjacent to the injection site can be affected, causing vertical deviation, especially with higher do ses of BOTOX. The incidence rates of these adverse effects in 2058 adults who received a total of 3650 injections for horizontal strabismus was 17%. The incidence of ptosis has been reported to be dependent on the location of the injected muscles, 1% after inferior rectus injections, 16% after horizontal rectus injections and 38% after superior rectus injections.
Risks are very minor with this procedure. The main risks consist of headache, pain, and flu-like illness. In rare cases, there may be a drooping lid or eyebrow area. It is important for the cosmetic surgeon to assess the patient's lids before injecting because the patient may not be a good candidate if he or she has an extremely droopy lid to begin with or one that is held up by constantly arching the lids. Ptosis (a severe drooping of the eyelid) can occur in up to 5% of patients but is very rare if the cosmetic surgeon does this procedure often. These complications are typically very minor occurrences and resolve with time.
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Since then, several randomized control trials have shown botulinum toxin type A to improve headache symptoms and quality of life when used prophylactically for patients with chronic migraine[88] who exhibit headache characteristics consistent with: pressure perceived from outside source, shorter total duration of chronic migraines (<30 years), "detoxification" of patients with coexisting chronic daily headache due to medication overuse, and no current history of other preventive headache medications.[89]
With the outbreak of World War II, weaponization of botulinum toxin was investigated at Fort Detrick in Maryland. Carl Lamanna and James Duff[42] developed the concentration and crystallization techniques that Edward J. Schantz used to create the first clinical product. When the Army’s Chemical Corps was disbanded, Schantz moved to the Food Research Institute in Wisconsin, where he manufactured toxin for experimental use and generously provided it to the academic community.
In patients who are not catheterizing, post-void residual (PVR) urine volume should be assessed within 2 weeks post-treatment and periodically as medically appropriate up to 12 weeks, particularly in patients with multiple sclerosis or diabetes mellitus. Depending on patient symptoms, institute catheterization if PVR urine volume exceeds 200 mL and continue until PVR falls below 200 mL. Instruct patients to contact their physician if they experience difficulty in voiding as catheterization may be required.

So people told me I looked tired, overlooking the grape-size purple bruise smack dab in the center of my forehead. As one RealSelf reviewer wrote: “My head feels too tight, my eyebrow position has dropped enough to lose my nice pretty arch and my eyelids seem hooded. My eyes look smaller.” Now, if it works, looking a bit tired is a small price to pay for a few more days each month of migraine freedom and function. And bruises can be covered with makeup.
The potency Units of BOTOX are specific to the preparation and assay method utilized. They are not interchangeable with other preparations of botulinum toxin products and, therefore, units of biological activity of BOTOX cannot be compared to nor converted into units of any other botulinum toxin products assessed with any other specific assay method [see DESCRIPTION].
In many children, there are a few muscle groups that can have very active spasticity. A more focal approach to these muscles would be better than a widespread approach. In this case a doctor may advise a nerve block to interrupt the signal to the muscle that is spastic. Once the signal that is carried to the muscle by the nerve is interrupted, the spasticity will decrease.
The initial listed doses of the reconstituted BOTOX [see Preparation And Dilution Technique] typically create paralysis of the injected muscles beginning one to two days after injection and increasing in intensity during the first week. The paralysis lasts for 2-6 weeks and gradually resolves over a similar time period. Overcorrections lasting over six months have been rare. About one half of patients will require subsequent doses because of inadequate paralytic response of the muscle to the initial dose, or because of mechanical factors such as large deviations or restrictions, or because of the lack of binocular motor fusion to stabilize the alignment .
Some doctors and dermatologists recommend lying down and resting after a treatment, but Ravitz says she doesn't think there's any need for downtime unless a patient experiences pain. It can take about two weeks to work, though some patients start to feel relief from chronic migraines sooner than that. Ravitz tells me, "If it’s going to work for a patient, one round of the treatment typically lasts for around three months." Though everybody metabolizes it at a different rate, getting it done every three months or so has been found to be effective.
Forehead – The horizontal lines and furrows on your forehead will not magically disappear. Which is why you should consider getting a Botox injection before they start to set in permanently. These lines will become more excessive with age, and will age to your appearance.Over time by repeatedly injecting these lines the deeply etched lines will become progressively improved
The biological blocking powers of Botox are used to treat migraines, muscular disorders, and some and bowel disorders. It can treat muscle stiffness, muscle spasms, overactive bladder, or loss of bladder control, too. It's also used to stop excessive sweating. "Botox blocks glands the same way it blocks nerves in muscles," Sobel tells SELF. However, don't expect to stop sweating entirely, he says. "You've got to sweat somewhere." What's more, Botox will last far longer in these sweaty situations since the glands are far smaller than the muscles treated, says Rowe.
The Company is developing a number of products, some of which utilize drug delivery systems, through a combination of internal and collaborative programs, such as Esmya, Sarecycline, Ubrogepant, Abicipar, Bimatoprost SR, Relamorelin, Rapastinel, Cenicriviroc and Atogepant. The Company's portfolio of branded pharmaceutical products within the US Specialized Therapeutics, US General Medicine and International segments includes Alphagan/Combigan, which is used for the treatment of selective alpha2 agonist; Armour Thyroid, which is used for the treatment of Underactive thyroid; Asacol/Delzicol, which is used for the treatment of ulcerative colitis; Botox, which is used for the treatment of acetylcholine release inhibitor; Bystolic, which is used for the treatment of hypertension; Carafate/Sulcrate, which is used for the treatment of ulcerative colitis, and Dalvance, which is used for the treatment of acute bacterial skin infections. It also offers Estrace Cream, which is used for the treatment of hormone therapy; Linzess/Constella, which is used for the treatment of irritable bowel syndrome; Lo Loestrin which is an oral contraceptive; Lumigan/Ganfort, which is used for the treatment of prostaglandin analogue; Minastrin 24, which is an oral contraceptive; Namenda IR, Namenda XR and Namzaric, which are used for the treatment of Dementia; Restasis, which is used for the treatment of topical immunomodulator; Saphris, which is used for the treatment of schizophrenia, bipolar mania; Teflaro, which is used for the treatment of acute bacterial skin infections, community-acquired bacterial pneumonia; Viberzi, which is used for the treatment of irritable bowel syndrome; Viibryd/Fetzima, which is used for the treatment of depressive disorders, and Zenpep, which is used for the treatment of exocrine pancreatic insufficiency. The Company also offers CoolSculpting, which is a controlled-cooling fat reducing system.
It is not always clear what is causing chronic migraines. BOTOX is a viable option for treating migraines, and it may be the most effective treatment for you. Migraines lead to extreme pain that impacts every aspect of life, from personal to professional. Migraines are debilitating and for some who suffer from the condition, bedrest is the only option. A BOTOX treatment for migraines is a simple procedure but could vastly improve your quality of life.
Postmarketing Experience: The following adverse reactions have been identified during postapproval use of LATISSE®: dry skin of the eyelid and/or periocular area, eye swelling, eyelid edema, hypersensitivity (local allergic reactions), lacrimation increased, madarosis and trichorrhexis (temporary loss of a few eyelashes to loss of sections of eyelashes, and temporary eyelash breakage, respectively), periorbital and lid changes associated with a deepening of the eyelid sulcus, rash (including macular and erythematous), skin discoloration (periorbital), and vision blurred.

Botox is said to decrease the frequency of migraine days by an average of 50 percent for those who suffer chronically (people who experience 15 or more headache days per month). After going through hell with my insurance to get approval, I scheduled an appointment with New York City neurologist and pain-management specialist Risa Ravitz. She was kind enough to speak with me about the wonders of Botox while we did my first procedure in June 2017.
Serious and/or immediate hypersensitivity reactions have been reported. These reactions include anaphylaxis, serum sickness, urticaria, soft tissue edema, and dyspnea. If such a reaction occurs, further injection of BOTOX should be discontinued and appropriate medical therapy immediately instituted. One fatal case of anaphylaxis has been reported in which lidocaine was us ed as the diluent, and consequently the causal agent cannot be reliably determined.
The toxin itself is released from the bacterium as a single chain, then becomes activated when cleaved by its own proteases.[11] The active form consists of a two-chain protein composed of a 100-kDa heavy chain polypeptide joined via disulfide bond to a 50-kDa light chain polypeptide.[35] The heavy chain contains domains with several functions: it has the domain responsible for binding specifically to presynaptic nerve terminals, as well as the domain responsible for mediating translocation of the light chain into the cell cytoplasm as the vacuole acidifies.[1][35] The light chain is a zinc metalloprotease and is the active part of the toxin. It is translocated into the host cell cytoplasm where it cleaves the host protein SNAP-25, a member of the SNARE protein family which is responsible for fusion. The cleaved SNAP-25 is unable to mediate fusion of vesicles with the host cell membrane, thus preventing the release of the neurotransmitter acetylcholine from axon endings.[1] This blockage is slowly reversed as the toxin loses activity and the SNARE proteins are slowly regenerated by the affected cell.[1]
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