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Topiramate in migraine prevention: results of a large controlled trial.

BACKGROUND: Open-label trials and small controlled studies report topiramate's efficacy in migraine prevention. OBJECTIVE: To assess the efficacy and safety of topiramate as a migraine-preventive therapy. DESIGN: A 26-week, randomized, double-blind, placebo-controlled study. SETTING: Outpatient treatment at 49 US clinical centers. Patients Patients were aged 12 to 65 years, had a 6-month International Headache Society migraine history, and experienced 3 to 12 migraines per month, but had 15 or fewer headache days per month during the 28-day baseline period. INTERVENTIONS: Participants were randomized to placebo or topiramate, 50, 100, or 200 mg/d, titrated by 25 mg/wk to the assigned dose or as tolerated in 8 weeks; maintenance therapy continued for 18 weeks. MAIN OUTCOME MEASURES: The primary efficacy assessment was a reduction in mean monthly migraine frequency across the 6-month treatment phase. Secondary end points were responder rate, time to onset of action, mean change in migraine days per month, and mean change in rescue medication days per month. RESULTS: Four hundred eighty-seven patients were randomized, and 469 composed the intent-to-treat population. The mean +/- SD monthly migraine frequency decreased significantly for the 100-mg/d group (from 5.4 +/- 2.2 to 3.3 +/- 2.9; P <.001) and the 200-mg/d group (from 5.6 +/- 2.6 to 3.3 +/- 2.9; P <.001) vs the placebo group (from 5.6 +/- 2.3 to 4.6 +/- 3.0); improvements occurred within the first treatment month. Significantly more topiramate-treated patients (50 mg/d, 35.9% [P =.04]; 100 mg/d, 54.0% [P <.001]; and 200 mg/d, 52.3% [P <.001]) exhibited a 50% or more reduction in monthly migraine frequency than placebo-treated patients (22.6%). Adverse events included paresthesia, fatigue, nausea, anorexia, and taste per version. CONCLUSION: Topiramate, 100 or 200 mg/d, was effective as a preventive therapy for patients with migraine.

Adolescent↗

Planning a spit tobacco cessation intervention: identification of beliefs associated with addiction.

We examine the relationship between beliefs regarding spit tobacco (ST) use and addiction among 473 male college athletes who currently use ST. Beliefs were assessed using methods prescribed by the Theory of Reasoned Action. Independent associations between beliefs and addiction, defined by self-reported amount of ST used per week, were found via multivariate polychotomous regression modeling. We found that with increasing addiction level, athletes were significantly more likely to believe that "ST helps me relax," "ST keeps me alert," "ST tastes good," and "ST is addicting." All athletes believed that clinicians, parents, and girlfriends do not approve of their ST use, but that male peers, coaches, and professional athletes are fairly indifferent about it. To increase quit rates, highly addicted ST users may require an intensive cessation program including nicotine replacement to overcome symptoms of withdrawal, oral substitutes for the enjoyable taste of ST, and the support of male peers and athletes who influence their social norms.

Adolescent↗

Use of smokeless tobacco by young adult females.

In contrast to the well documented use of smokeless tobacco (ST) by men, far less is known about ST use by women. In part this is due to the small overall prevalence of ST use among women (0.6%). This paper is a descriptive report of the use of ST by young adult women in the upper midwest. Twenty women, identified as smokeless tobacco users, completed a tobacco questionnaire and brief interview. The majority (80%) were introduced to ST by friends and 60% had tried cigarettes before using ST. Almost all used ST daily, averaging 3.6 dips per day. The number of dips per day was significantly correlated with salivary cotinine (r = .60). Subjects listed relaxation and pleasure most frequently as reasons for using ST. Twenty-five percent reported using ST to quit smoking and a similar percentage reported using ST to curb their appetite. With the introduction of new flavored snuff products, ST may become more appealing to the tastes of diverse groups including women. The potential acceptance of ST among women should be the focus of further research.

Adult↗

High ethanol preferring rats fail to show dependence following short- or long-term ethanol exposure.

AIMS: The high ethanol preferring (HEP) rat shows high total ethanol consumption, high spontaneous activity and high consumption of novel tastants. Because these animals consume large quantities of ethanol daily, we sought to determine whether they could become alcohol-dependent by repeated exposures of varying lengths and withdrawals of alcohol, both in short- and long-term ethanol exposure. METHODS: Male and female HEP rats were subjected to short (14 days) or long (20 weeks) exposure to 10% ethanol in a two choice (vs. water) test. During the short- and long-term ethanol exposures, the animals were repeatedly deprived of ethanol for 5 days followed by reinstatement of the two-choice test. Moreover, pharmacological interventions (morphine and naltrexone), adulteration of ethanol by quinine and addition of saccharine to water were applied to test the lability of a possible alcohol deprivation effect. RESULTS: In every case, deprivation produced a high initial intake of ethanol that lasted 0.5 h, but thereafter no significant increase in alcohol consumption, compared to predeprivation. Even after several months of continuous drinking of large amounts of ethanol, the animals were sensitive to adulteration of the alcohol solution by quinine, that reduced the intake, and still preferred a saccharine solution when presented as a free choice with the alcohol solution. Pretreatment with morphine increased ethanol consumption in the first 0.5 h following deprivation, whereas naltrexone reduced it. CONCLUSIONS: Taste reinforcement is probably a major component of alcohol drinking by the HEP rats, and that while these rats consume large quantities of ethanol both in the short- and long-term, they do not show a robust alcohol deprivation effect.

Alcohol Drinking↗

Dietary intake of older adults in the Kingston area.

The objectives of this research were to describe the dietary intake and identify risk factors for poor dietary intake in community-dwelling older adults living in the Kingston, Frontenac, and Lennox & Addington Health Unit area. Dietary intake information was collected from a convenience sample of 105 relatively healthy, active older adults (84 women, 21 men) using 24-hour recalls from three non-consecutive days. Risk factors for poor dietary intake were identified through a structured interview. Multiple linear regression was used to generate a model to predict dietary intake, which was measured using a diet score based on Canada's Food Guide to Healthy Eating. Group averages reflected reasonable diet quality, but some subjects had very low nutrient intakes, particularly of zinc and vitamins B6, B12, and C. On average, women had a lower-than-recommended intake from all food groups, while men consumed adequate amounts of all food groups except milk products. Higher scores indicated better overall diet quality, and the following were significant predictors of a high diet score: "almost always" preparing one's own meals, food "almost always" or "sometimes/never" tasting good, eating lunch every day, and taking fewer prescription medications. This model requires validation with a larger and more diverse population of community-dwelling older adults.

Aged↗

Current progress toward the prevention of the Wernicke-Korsakoff syndrome.

The Wernicke-Korsakoff syndrome is a rare neurological disorder which strikes primarily alcoholics and is caused, at least in part, by insufficient bioavailability of thiamin. Because of the low cost of preventing this disease by adding thiamin to alcoholic beverages relative to the cost of the long-term care of patients with the chronic phase of the disease, there has been a need to determine the feasibility of this particular preventive strategy. Recent data demonstrating normal levels of erythrocyte transketolase in patients presenting with Wernicke's encephalopathy has led some to question the link between thiamin deficiency, and the development of the syndrome, despite the fact that virtually all patients with Wernicke's encephalopathy will respond favorably to parenteral thiamin, and the evidence that rats deprived of thiamin develop lesions that are characteristic of the disease. Thiamin is nontoxic, is stable in alcoholic beverages, and is undetectable in beer to professional taste-testers at levels theoretically sufficient to guarantee adequate absorption. Although there is much inter-subject variability it appears that thiamin at therapeutic concentrations can be absorbed by the jejunum in the presence of alcohol. Evidence that patients with the Wernicke-Korsakoff syndrome have an altered thiamin-requiring isoenzyme and evidence that six patients with Wernicke's encephalopathy failed to respond to oral thiamin has caused some doubt as to whether the target population would be able to benefit from the measure. Other determinants of thiamin utilization, such as folate and magnesium status, also may figure in the etiology of the disease.(ABSTRACT TRUNCATED AT 250 WORDS)

Alcohol Amnestic Disorder↗

Male transmission of the gene for isolated gonadotropin-releasing hormone deficiency.

Three black women, daughters of the same father but three unrelated mothers, presented with isolated gonadotropin deficiency (IGD). Clinically, the patients had no midline defects and intact smell and taste senses. Biochemically, the essential feature was very low unstimulated and stimulated follicle-stimulating hormone and luteinizing hormone levels, even after priming with gonadotropin-releasing hormone over a 5-day period. Growth hormone response to insulin-induced hypoglycemia was somewhat blunted, but prolactin, cortisol, and thyroid-stimulating hormone responses were quite normal. All three patients had the 46,XX karyotype; clinical or biochemical aberrations could not be demonstrated in any of the remaining family members. The disorder was, apparently, transmitted by the deceased father, who manifestly did not have an IGD deficiency nor any of the midline stigmata associated with IGD. The mode of inheritance seems most likely to be autosomal dominant with variable penetrance.

Adolescent↗

Topiramate in migraine prevention.

The efficacy of topiramate in migraine prevention (prophylaxis) was established in two multicenter, randomized, double-blind, placebo-controlled, pivotal trials. Topiramate has received regulatory approval for use in adults for migraine prophylaxis (prevention) in the US and numerous other countries, including France, Ireland, Switzerland, Brazil, Taiwan, Spain, and Australia. Treatment with 100 or 200 mg per day of topiramate was associated with significant reductions in the frequency of migraine headaches, number of migraine days, and use of acute medications. No increase in efficacy was observed between 100 and 200 mg per day of topiramate. Based on efficacy and tolerability, 100 mg per day of topiramate should be the initial target dose for most patients. The most common adverse events were paresthesia, fatigue, decreased appetite, nausea, diarrhea, weight decrease, and taste perversion. Topiramate is a first-line migraine preventive drug and should especially be considered as a preferred treatment for all patients who are concerned about gaining weight, who are currently overweight, or who have coexisting epilepsy.

Adolescent↗

Sensory perception of patients on selected antineoplastic chemotherapy protocols.

Antineoplastic chemotherapy (ANCT) is a primary and adjuvant treatment modality for cancer. Although researchers have found that patients who are given preparatory sensory information before various health-care procedures experience less discomfort, literature describing subject's sensory experience before, during, and after ANCT is lacking. The purpose of this study was to elicit sensory responses from subjects before, during, and after one of six cycles of their initial course of treatment on one of two emetogenic ANCT protocols. These descriptions will be used to develop a preparatory sensory nursing intervention that may promote self-care and help cancer patients cope with the distress of chemotherapy. The Sensory Information Questionnaire was administered to a sample of 44 subjects who had just completed a cycle of ANCT. Subjects provided descriptors of all senses. The senses for which subjects most frequently provided descriptors were taste, touch, and smell. Descriptors varied for some sensations according to the chemotherapy drug protocols.

Adaptation, Psychological↗

The tongue: structure and function relevant to disease and oral health.

The tongue (L. lingua; G. glossa) functions as a digestive organ by facilitating the movement of food during mastication and assisting swallowing. Other important functions include speech and taste. The tongue consists of striated muscle and occupies the floor of the mouth. The dorsal mucosal surface consists of stratified squamous epithelium, with numerous papillae and taste buds. The tongue, a voluntary muscular structure, is attached by a fold, called the frenulum, to the floor of the mouth. Typically, between 8 and 12 circumvallate papillae are arranged in an inverted V-shape towards the base of the tongue. This anatomical review focuses on structure, function relationships and diseases affecting the tongue. From a primary oral health care perspective, this overview will facilitate the process of differential diagnosis in persons presenting with vesiculo-bullous, ulcerative, atrophic and cystic disorders of the tongue. Suspicious lesions should be biopsied to rule out carcinoma.

Humans↗

A 2-week efficacy and safety study of eszopiclone in elderly patients with primary insomnia.

STUDY OBJECTIVES: Evaluate the efficacy of eszopiclone in primary insomnia. DESIGN/SETTING: Randomized, double-blind, placebo-controlled multicenter in outpatient setting with weekly visits. PARTICIPANTS: Two-hundred thirty one men and women aged 65 to 85 years (mean age 72.3 years) with primary insomnia, as defined by the Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition. INTERVENTIONS: Eszopiclone 1 mg (n = 72), eszopiclone 2 mg (n = 79), or placebo (n = 80) nightly for 2 weeks. MEASUREMENTS/RESULTS: Efficacy was assessed using an interactive voice response system. Following the predefined hierarchical testing strategy, the eszopiclone 2-mg group had a significantly shorter sleep latency compared with placebo over the double-blind period (P = .0034). The eszopiclone 2-mg group had significantly longer total sleep time (P = .0003) and eszopiclone 1-mg group had significantly shorter sleep latency (P < or = .012) compared with placebo. The eszopiclone 1-mg group was not significantly different from placebo on total sleep time or any other secondary efficacy endpoint. Secondary analyses indicated that the eszopiclone 2-mg group had significantly less wake after sleep onset; significantly fewer and shorter in duration daytime naps; and significantly higher ratings of sleep quality and depth, daytime alertness, and sense of physical well-being compared with placebo (P < .05). Eszopiclone was well tolerated. The most frequent treatment-related adverse event was unpleasant taste. CONCLUSION: Nightly treatment with eszopiclone 1 mg effectively induced sleep, while the 2-mg dose was effective in inducing and maintaining sleep. Eszopiclone was well tolerated in elderly patients with primary insomnia, and the sleep efficacy was accompanied by significantly less napping and significantly higher ratings of daytime alertness, sense of physical well-being, and several quality-of-life parameters at the higher dose.

Aged↗

Influence of dietary sucrose on biological aging.

The segment of the population aged > 65 y is the fastest growing age segment in most developed countries. The increasing numbers of individuals living into their eighth and ninth decades of life have shifted the focus of biomedical research from seeking mechanisms for extending life to finding ways to improve health and to reduce age-related morbidity. One area of research that has shown considerable promise for improving the health of elderly people is nutrition. I review recent literature pertinent to the influences of nutrition on biological aging by discussing the effects of dietary sucrose and other carbohydrates on glucose homeostasis, age-related disorders and pathology, and life span. Although critical gaps remain in our understanding of how dietary sucrose can affect biological aging, evidence exits that the type and amount of dietary carbohydrate can significantly affect the health and life span of elderly people.

Aged↗

A sleep laboratory evaluation of the long-term efficacy of zopiclone.

Six patients between the ages of 25 and 59, with chronic, primary insomnia received the new, non-benzodiazepine, hypnotic zopiclone continuously for 17 weeks after a drug free interval of 12 nights. To qualify for the study, sleep efficiency, determined by a sleep study on two, consecutive, placebo-controlled nights, had to be less than 75%. Patients evaluated their sleep by questionnaire and had sleep studies completed throughout active treatment. Zopiclone (7.5 mg) increased sleep efficiency by decreasing sleep latency, wakefulness after sleep onset and increasing total sleep time. Sleep architecture was minimally affected by zopiclone treatment; no significant changes in delta or REM sleep were observed. The commonest side effect was a bitter or metallic taste. No significant changes in biological functioning were noted throughout the study period. These findings indicate that zopiclone is a safe and effective hypnotic medication which maintains its effectiveness with protracted use.

Adult↗

Part III: the convenience of, and patient preference for, zolmitriptan orally disintegrating tablet.

As part of an optimal strategy for the management of migraine, the individual needs and preferences of patients need to be considered when of patients need to be considered when prescribing treatments. Zolmitriptan has been available as a conventional oral tablet for more than seven years, and is established as a highly effective, well-tolerated compound for the acute treatment of migraine. A bioequivalent, orally disintegrating tablet (ODT) of zolmitriptan, which dissolves on the tongue without the need for additional fluid intake, has been developed. In a study designed to compare patient preference for zolmitriptan ODT and conventional oral sumatriptan tablets, > 60% of the 186 patients questioned had an overall preference for zolmitriptan ODT, with > 80% of patients reporting that this was the more convenient and less disruptive therapy to take. Approximately 90% of patients agreed that, unlike a conventional tablet, zolmitriptan ODT can be taken wherever and whenever a migraine occurs. When patient preference for zolmitriptan ODT and the ODT formulation of rizatriptan was compared in 171 migraineurs, 70% had an overall preference for zolmitriptan ODT to be superior to rizatriptan ODT with respect to taste and aftertaste, as well as packaging. In summary, not only is zolmitriptan ODT a convenient tablets, such as the sumatriptan oral tablet, but patients generally consider it to be a more attractive option for the acute treatment of migraine than the orally disintegrating version of rizatriptan.

Chemistry, Pharmaceutical↗

Effectiveness of nasal sumatriptan in 5- to 12-year-old children.

OBJECTIVE: To assess the tolerability and effectiveness of nasal sumatriptan in the treatment of migraine in 5- to 12-year-old children. BACKGROUND: Although headaches are a common disorder and occur in up to 10.6% of children, many of the new migraine abortive agents have not been well evaluated in this population. It has recently been reported that nasal sumatriptan is effective in the treatment of migraine in adolescents. In younger children, it is yet to be characterized. In addition, many children have significant amounts of vomiting with their migraines, limiting their use of oral medications. DESIGN AND METHODS: Children with headache were evaluated by a child neurologist, child psychologist, and pediatric nurse practitioner. Clinical and International Headache Society diagnoses were established for each child. Patients with headaches that were either unresponsive to oral medications or had significant vomiting were treated with nasal sumatriptan. Initial administration and tolerability were performed in the Headache Center at Cincinnati's Children's Hospital Medical Center. Patients or their parents were contacted to assess the overall effectiveness of nasal sumatriptan after home administration. RESULTS: Ten patients aged between 5 and 12 years (mean, 9.9 years) received either a 5-mg (n = 2) or 20-mg (n = 8) dose of sumatriptan. All 10 patients had a clinical diagnosis of migraine; 7 met the International Headache Society criteria for migraine. The mean age of headache onset was 6.6 years. A total of 57 headaches were treated; 47 (82.5%) responded to sumatriptan. Of the patients who treated headaches, the mean number of headaches treated was 5.2, while the mean number of responsive headaches was 4.3. One patient had no response, 2 patients had a 50% response, and 6 patients had 100% response to the nasal sumatriptan. Three patients reported persistent "bad taste." CONCLUSIONS: This report demonstrates that nasal sumatriptan may be effective in aborting migraine in young children (aged 5 to 12 years). It also suggests that there may be subgroups for which it works well. This information suggests that double-blind, placebo-controlled studies are necessary to determine the overall effectiveness of nasal sumatriptan in this age group.

Administration, Intranasal↗

Selective attention and place navigation in rats treated prenatally with methylazoxymethanol.

Prenatal treatment of rats on gestation day 15 with methylazoxymethanol (MAM) caused forebrain microencephaly. The behavioral analyses included measures of spontaneous motor activity and tests for cognitive deficits, and were performed when the rats had reached adult age. Female MAM-treated rats failed to demonstrate contextual control of latent inhibition, which confirms earlier findings with male rats. Male MAM-treated rats demonstrated a notable impairment of place navigation in a swim-maze, but showed as strong sensory preconditioning as the control animals. Biochemical analyses indicated considerable increases in catecholamine levels in the cerebral cortex, hippocampus and striatum. The cognitive deficits, characterised by the various conditioning (taste-aversion) and instrumental learning (swim-maze) tasks, suggested that the MAM rats are deficient in their capacity to attend selectively to the relevant stimulus in complex arrangements of the stimulus situation.

Abnormalities, Drug-Induced↗

Age related changes in gut physiology and nutritional status.

Few gastrointestinal functions decline to an important extent as a result of old age alone and there is little clinical evidence that significant malnutrition occurs in any normal elderly person as a result of the aging process itself. Nevertheless, decreased gastrointestinal reserve makes older people highly sensitive to minor insults and decompensation can rapidly occur. Drugs appreciably affect taste sensation, which is already blunted and psychological as well as physical disability can have a major impact on appetite. Malabsorption can be caused by gastric hypochlorhydria with small bowel bacterial overgrowth and while gastrointestinal dysmotility can be caused by subclinical hypothyroidism, it can improve in response to physical exercise. Evidence is now mounting that thorough investigation of gastrointestinal disturbances in elderly patients coupled with intensive nutritional support can make a very real impact on their outcome. Gastroenterologists should therefore seek out and actively treat gastrointestinal disorders in the elderly and not just ascribe them to old age.

Aged↗

[Malnutrition in the elderly. Clinical consequences].

UNLABELLED: A COMMON PROBLEM: Undernutrition occurs when nutrient intake does not meet nutritional needs. Selective food intake induced micronutrient deficits (moderate undernutrition) and can later lead to protein calorie malnutrition (PCM). PCM is often discovered during acute illness (increased nutritional needs). PCM is observed in 30 to 50% of the institutionalized population and in 2-4% of the elderly living at home. Micronutrient deficits are far more frequent and concern 4 million elderly persons in France. AGE-RELATED CHANGES: Decreased smell and taste capacities and the inability to modify eating habits in stress conditions are mainly responsible for low food intake. Low intake leads to immunodeficiency, and subsequent frailty. Any intercurrent illness aggravates both undernutrition and immunodeficiency, creating a disease-to-disease spiral (undernutrition-immunodeficiency) that is difficult to inverse. SIGNS OF PCM: Early signs of protein-calorie malnutrition are nonspecific: fatigue, apathy, decline in muscle strength. It is important to diagnose undernutrition at this stage before more specific symptoms develop: anorexia, weight loss, infection. Metabolic disorders occur at a later stage, generally during an acute illness, leading to overt PCM with perturbed glucose metabolism, recurrent infection, dehydration, impaired wound healing and calcium bone loss. The length of refeeding therapy depends on the intensity of the clinical signs, weight loss, dehydration, glucose metabolism disorder and/or on the severity of clinical complications such as infection or bone fractures. PRACTICAL ATTITUDE: Under nutrition must be recognized early at the stage of nonspecific clinical expression. Practitioners must be constantly aware of the risk of undernutrition and search for nonspecific signs in the elderly.

Aged↗