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Home All Updates (139) Harvard Health Lette
Harvard Health Letter Build a better bladder Exercises, lifestyle change, medications, and procedures can alleviate incontinence and give you your life back. Published: February, 2016 A leaky bladder or a sudden urge to go to the bathroom is uncomfortable andembarrassing. But you can take steps to alleviate the problem. "Some people tell me they would have sought treatment sooner if they'd known it was this simple, " says Dr. Anurag Das, director of the Center for Neurourology and Continence at Harvard-affiliated Beth Israel Deaconess Medical Center. Lifestyle changes One of the first lines of defense is pill-free and costs nothing: lifestyle change. For urge incontinence (see "Types of incontinence"), you can try timed voiding (urinating on a schedule) and bladder guarding, which teaches you to cope with triggers that set off the urge to go, such as washing dishes or hearing water. "You squeeze your muscles to hold in urine before a trigger, which sends a message to the brain that this is not the time to go, " says Dr. Das. Other lifestyle changes include watching fluid intake; quitting smoking, to reduce coughing and pressure on the bladder; and minimizing bladder irritants such as caffeine, alcohol, and carbonated drinks. Pelvic floor rehab The pelvic floor muscles aid control of your bladder and bowels. Strengthening these muscles can be helpful to people with stress incontinence (see "Types of incontinence") as well as those with urge incontinence. This is done with Kegel exercises, which involve squeezing and releasing the muscles you use to hold in urine. A physical therapist can help you learn how to do the exercises properly. "The majority of people with urge incontinence will improve with rehab. It may not make it 100% better, but even 75% may be acceptable to many people, " says Dr. Das. Medications When pill-free measures aren't enough to curb incontinence, medications may help. The most commonly prescribed drugs for urge incontinence are anticholinergics, such as oxybutynin (Ditropan). Side effects can include dry mouth and eyes, headache, constipation, and confusion. Some drugs relieve stress incontinence, such as tricyclics like imipramine (Tofranil) and alpha-adrenergic agonists like pseudoephedrine (Sudafed), which are often found in cold medicines. However, these, too, are limited by side effects, and their effect declines over time. When an enlarged prostate causes overflow incontinence (see "Types of incontinence"), alpha blockers such as doxazosin (Cardura) may help by relaxing the smooth muscle of the prostate. It may take trial and error to find the best drugs with the fewest side effects. Procedures Injections of botulinum toxin (Botox), a muscle relaxant, are used to treat urge incontinence. "The downside is a higher incidence of urine retention and risk of bladder infection. Some patients won't be able to urinate and may need to use a catheter, " says Dr. Das. Injections of calcium hydroxylapatite (Coaptite) are used to treat stress incontinence by tightening the urethra. A procedure called sacral neuromodulation can help people with urge incontinence. A small device called Interstim is implanted in the lower back to stimulate the sacral nerve, improving both bladder and bowel problems. Surgery sometimes is used for stress incontinence. This involves creating a sling that wraps around a person's urethra. "You don't have to use artificial mesh materials for the sling; you can use the patient's own fascia (muscle lining) if preferred, " says Dr. Das. There is no surgery for overflow incontinence if the bladder muscle does not work. However, in cases of blockage from the prostate, prostate surgery may help. Types of incontinence Stress incontinence occurs mostly in women, and it's often the result of a weakened or stretched pelvic floor from childbirth. The telltale symptom is leakage with pressure or stress on the bladder, such as when laughing or coughing. Stress incontinence is less common in men unless they've had an injury or had their prostate removed. Urge incontinence (overactive bladder) is characterized by an inability to get to the bathroom in time. It's caused by overactive contractions of the bladder muscle that may be related to an enlarged prostate in men; changes to the bladder lining or bladder muscle in postmenopausal women; or a chronic neurological condition, such as multiple sclerosis. Overflow incontinence occurs when there's no room for additional urine because the bladder is not emptying, either because it is blocked or because it isn't working properly because of a neurological disorder or a medication side effect. Overflow incontinence primarily affects men with enlarged prostates. Symptoms include frequent leakage or a feeling of lower-belly fullness. The condition increases the risk for bladder infections because the urine pools in the bladder for long periods of time
  • 2018-03-08T07:03:59

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Gene editing can help treat congenital disease before birth Updated Oct 09, 2018 | 20:02 IST | IANSPrenatal treatment could open a door to disease prevention, for HT1 and potentially for other congenital disorders. Representational image Photo Credit: ThinkstockRepresentational Image New York: In a first, a team of scientists have performed prenatal gene editing to prevent a lethal metabolic disorder in laboratory mice, offering the potential to treat human congenital diseases before birth. The study led by research from Children's Hospital of Philadelphia (CHOP) and the University of Pennsylvania used both CRISPR-Cas9 and base editor 3 (BE3) gene-editing tools and reduced cholesterol levels in healthy mice treated in utero by targeting a gene that regulates those levels. They also used prenatal gene editing to improve liver function and prevent neonatal death in a subgroup of mice that had been engineered with a mutation causing the lethal liver disease hereditary tyrosinemia type 1 (HT1). Advertising Advertising HT1 in humans usually appears during infancy, and it is often treatable with a medicine called nitisinone and a strict diet. However, when treatments fail, patients are at risk of liver failure or liver cancer. Prenatal treatment could open a door to disease prevention, for HT1 and potentially for other congenital disorders. "Our ultimate goal is to translate the approach used in these proof-of-concept studies to treat severe diseases diagnosed early in pregnancy, " said William H. Peranteau, a paediatric and foetal surgeon at CHOP. "We hope to broaden this strategy to intervene prenatally in congenital diseases that currently have no effective treatment for most patients, and result in death or severe complications in infants, " he added. In the study, published in the journal Nature Medicine, the team used BE3, joined it with a modified CRISPR-associated protein 9. After birth, the mice carried stable amounts of edited liver cells for up to three months after the prenatal treatment, with no evidence of unwanted, off-target editing at other DNA sites. In the subgroup of the mice bio-engineered to model HT1, BE3 improved liver function and preserved survival. However, "a significant amount of work needs to be done before prenatal gene editing can be translated to the clinic, including investigations into more clinically relevant delivery mechanisms and ensuring the safety of this approach", said Peranteau. He added: "Nonetheless, we are excited about the potential of this approach to treat genetic diseases of the liver and other organs for which few therapeutic options exist."
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