Caffeine Related Disorders

'A mother's worst nightmare' [The Joplin Globe, Mo.]

Sun, 21 Feb 2010 22:42:00 +0000

Feb. 21--There's a hole in Dakota Sailor's memory -- a gap from the evening of Thursday, Feb. 4, until late afternoon on Saturday, Feb. 6.

The Carl Junction teen remembers going to school that Thursday, drinking two high-powered energy beverages, and later falling asleep on the couch in the living room.

He next remembers waking up in St. John's Regional Medical Center on Saturday when physicians removed him from a ventilator.

The 17-year-old junior -- a defensive end and tackle for the Carl Junction High School football team -- had no history of seizures, and a series of medical tests found no apparent cause for this one.

His mother, Monique Burrows, found him that Friday morning after hearing what she described as a strange "gurgling" noise. She said that she found her son on the couch, where he had aspirated and turned blue. She yelled for her husband, who performed CPR on Sailor...

Health Canada Warns Canadians Not to Use "The Slimming Coffee" or "Lose Weight ...

Thu, 14 Jan 2010 18:12:00 +0000

OTTAWA, ONTARIO -- (MARKET WIRE) -- 01/14/10 -- Health Canada is warning consumers not to use the unauthorized product "The Slimming Coffee," which was previously sold as "Lose Weight Coffee," because it was found to contain the undeclared prescription drug sibutramine and may pose serious health risks. This product is promoted as a natural coffee beverage used for weight-loss.

Sibutramine is used to treat obesity and should only be used under the supervision of a health care practitioner. Sibutramine may cause serious side effects including cardiovascular reactions such as increased blood pressure, chest pain, and stroke. Other side effects include dry mouth, difficulty sleeping and constipation.

Sibutramine should not be taken by people who have had a heart attack, coronary artery disease, heart-related chest pain, irregular heart beats, congestive heart failure, a stroke or symptoms of a stroke, or unstable or poorly controlled high blood pressure. It should also not be...

On the rocks: Drinks under scrutiny for alcohol, caffeine mix [Waterloo-Cedar Falls Courier, Iowa]

Mon, 14 Dec 2009 19:04:00 +0000

Dec. 14--CEDAR FALLS -- When energy drinks emerged on the market in the late '90s, the beverages became a staple in college dorm rooms, fueling late-night study sessions.

It didn't take long for the products to migrate from the mini-fridge to the cocktail glass. Today, alcoholic drinks mixed with Red Bull and other stimulant beverages are a popular choice among young adults out for a night on the town.

But as the drinks' prevalence continue to grow, so do concerns. Last month, the Food and Drug Administration launched an investigation into the safety and legality of bottled beverages, like Joose, which contain both malt liquor and caffeine. The stimulants in such drinks -- as well as energy-alcohol concoctions mixed at home or at the bar -- initially mask the effects of the booze, making it difficult for consumers to judge the level of their impairment.

"It's like the body is tricking you,"...

Lawyer claims Noble's behavior could be result of 'caffeine psychosis': Attorney for man ...

Wed, 09 Dec 2009 16:51:00 +0000

Dec. 9--COLFAX -- Dan White infamously had the "Twinkie defense." Dan Noble may use the "Starbucks defense."

Noble, the 31-year-old Moscow man accused of an erratic driving episode Monday morning that put two Washington State University students in the hospital, made his first appearance in Whitman County Superior Court Tuesday afternoon.

Mark Moorer, his Pullman attorney, told Judge David Frazier that Noble's strange behavior Monday and the days before could have been caused by what he called "caffeine psychosis."

"From what we know, when (a Pullman doctor) released him yesterday, no substances were in his system that would suggest intoxication," Moorer said after the hearing. "So the question is, what triggered this?"

He described Noble as a type-A personality who worked long hours as a financial analyst in the University of Idaho Trust and Investment Office. Noble would often rise as early as 4 a.m. and begin consuming copious amounts of energy drinks...

Coffee and nighttime jobs don't mix

Wed, 04 Nov 2009 17:20:00 +0000

Night-shift workers should avoid drinking coffee because it interferes with sleep and this side-effect worsens as people age, Canadian researchers said.

Julie Carrier, a University of Montreal psychology professor said the combined influence of age and caffeine made the sleep of middle-aged subjects particularly vulnerable to the circadian waking signal.

"Caffeine is the most widely used stimulant to counteract sleepiness, yet it has detrimental effects on the sleep of night-shift workers who must slumber during the day, just as their biological clock sends a strong wake-up signal," Carrier said in a statement. "The older you get, the more affected your sleep will be by coffee."

Twenty-four men and women participated in the study: one group was ages 20-30, while a second group was ages 45-60. All spent two sleepless nights in lab rooms before being allowed to sleep. Both participant groups took either 200 milligrams of caffeine or a lactose-based placebo....

Alcohol, coffee, and bladder cancer risk: A review of epidemiological studies

Administrator — Fri, 22 May 2009 12:29:40 +0000

By Pelucchi C. and La Vecchia C.

The objective was to review epidemiological studies that evaluated the association between consumption of coffee and alcohol and urinary bladder cancer. We searched the Medline database for observational studies of bladder neoplasms that included information on coffee or alcohol drinking, and looked for papers quoted as references in reviews of risk factors for bladder cancer and in studies that had been selected for inclusion.

Results from epidemiological studies allow excluding a strong association between coffee and bladder cancer. Several studies reported a moderate increase in risk in coffee drinkers as compared with nondrinkers, but no trend with dose has been established.

Epidemiological data on alcohol drinking and bladder cancer are suggestive of no association, although findings were not always consistent. For both habits, an explanation of the moderate increase in risk observed...

Coffee may protect against oral, pharyngeal and esophageal cancer

Administrator — Fri, 22 May 2009 12:28:49 +0000

By Megan Rauscher

Last Updated: 2009-01-06 8:00:37 -0400 (Reuters Health)

NEW YORK (Reuters Health) - In the general population of Japan, coffee consumption is related to a lower risk of cancer of the oral cavity, pharynx and esophagus, new research indicates.

Such an association "has been suggested in case-control studies, but few results from prospective studies are available," Dr. Toru Naganuma of Tohoku University, Sendai, and colleagues note in the December 15 issue of the American Journal of Epidemiology.

To investigate further, they turned to the population-based prospective Miyagi Cohort Study in Japan, a country where consumption of coffee is relatively high, as is the incidence of esophageal cancer in men.

Among 38,679 subjects aged 40 to 64 years with no prior history of cancer, 157 cases of oral, pharyngeal and esophageal cancers were identified during 13.6 years follow...

Coffee drinkers show lower dementia risk

Administrator — Fri, 22 May 2009 12:27:43 +0000

By Amy Norton

Last Updated: 2009-02-03 10:01:59 -0400 (Reuters Health)

NEW YORK (Reuters Health) - In more good news for coffee lovers, a new study suggests that middle-aged adults who regularly drink a cup of java may have a lower risk of developing dementia later in life.

Whether coffee itself deserves the credit is not yet clear, but researchers say the findings at least suggest that coffee drinkers can enjoy that morning cup "in good conscience."

The study found that among 1,400 Finnish adults followed for 20 years, those who drank three to five cups of coffee per day in middle-age were two-thirds less likely than non-drinkers to develop dementia, including Alzheimer's disease.

The findings, reported in the Journal of Alzheimer's Disease, add to a string of studies finding that coffee drinkers have lower risks of several diseases, including...

Caffeine Poisoning and Lactate Rise

Administrator

Severe caffeine poisoning is rare but associated with a high mortality. The symptoms are mainly attributable to hyperadrenergic stimulation, are relatively well known and described in the literature. Transient rises in plasma lactate levels may occur but are, however, less well described. We present a case of serious caffeine poisoning with a concomitant rise in lactate treated with a non-selective ß-blocker and discuss briefly the symptomatology, the management of caffeine poisoning and the association between lactate and metabolic acidosis.

© 2008 The Authors

Acute risperidone treatment did not increase daily cigarette consumption or plasma levels of ...

Administrator

Excessive cigarette smoking and caffeine intake are often seen in schizophrenic patients being treated with antipsychotic drugs, particularly typical antipsychotic drugs. Using nicotine and caffeine sometimes influences psychotic symptoms in these patients. Clozapine is the only antipsychotic drug reported to reduce the amount of cigarette smoking, however, still remains controversial of its efficacy. In the present study, we examined the effect of acute risperidone treatment on the amount of cigarette smoking and plasma levels of cotinine and caffeine in schizophrenic patients. Treatment with risperidone for 4 weeks did not increase daily cigarette consumption or plasma levels of cotinine and caffeine. The results suggest that acute risperidone treatment does not promote the intake of nicotine and caffeine at least by 4 weeks in schizophrenic patients.

Copyright (copyright) 2008 John Wiley & Sons, Ltd.

Effect of Caffeine on Leg-Muscle Pain During Intense Cycling Exercise:

Administrator

This experiment examined the effect of a moderate dose of caffeine on perceptions of leg-muscle pain during a bout of high-intensity cycling exercise and the role of anxiety sensitivity in the hypoalgesic effect of caffeine on muscle pain during exercise. Sixteen college-age women ingested caffeine (5 mg/kg body weight) or a placebo and 1 hr later completed 30 min of cycling on an ergometer at 80% of peak aerobic capacity. The conditions were completed in a counterbalanced order, and perceptions of leg-muscle pain were recorded during the bouts of exercise.

Caffeine resulted in a large reduction in leg-muscle pain-intensity ratings compared with placebo (d = -0.95), and the reduction in leg-muscle pain-intensity ratings was larger in those with lower anxiety-sensitivity scores than those with higher anxiety-sensitivity scores (d = -1.28 based on a difference in difference scores). The results support that caffeine ingestion has a large...

Time for Tea: Mood, Blood Pressure and Cognitive Performance Effects of Caffeine

Administrator

Rationale: Although both contain behaviourally significant concentrations of caffeine, tea is commonly perceived to be a less stimulating drink than coffee. At least part of the explanation for this may be that theanine, which is present in tea but not coffee, has relaxing effects. There is also some evidence that theanine affects cognitive performance, and it has been found to reduce blood pressure in hypertensive rats.

Objectives: To study the subjective, behavioural and blood pressure effects of theanine and caffeine administered alone and together, in doses relevant to the daily tea consumption of regular tea drinkers. Materials and methods: In a randomised, double-blind, placebo-controlled study, healthy adult participants (n=48) received either 250-mg caffeine, 200-mg theanine, both or neither of these. They completed ratings of mood, including anxiety, and alertness, and had their blood pressure measured before and starting 40 min after drug administration. Anxiety was also...

Development and Initial Validation of a Caffeine Craving Questionnaire

Administrator

Craving for caffeine has received little empirical attention, despite considerable research into the potential for caffeine dependence. The main aim of this study was to develop, and initially validate, a multi-item, multidimensional instrument to measure cravings for caffeine.

Participants were 189 caffeine consumers who completed the Questionnaire of Caffeine Cravings, which was based on the Questionnaire of Smoking Urges (QSU), in one of five naturally occurring periods of abstinence; 1-15 min; 16-120 mins; 3-7 h; 12-48 h and +48 h. Exploratory factor analysis suggested a three-factor solution best described the data; Factor 1 reflected strong desires, intentions and positive reinforcement; Factor 2 reflected mild/general positive and negative reinforcement and Factor 3 reflected functional/mood-based negative reinforcement. Significantly higher Factor 1 and Factor 2 scores were recorded for high frequency users; significantly higher Factor 1 and Factor 3 scores were recorded as a function of increased levels of...

Pharmacological and Psychological Effects of Caffeine Ingestion in 40-km Cycling Performance

Administrator

The ergogenic effects of caffeine are well documented. Research has yet to examine any psychological contribution to this effect.

AIM: To explore the psychological and pharmacological effects of caffeine in laboratory cycling performance.

METHOD: Fourteen male competitive cyclists performed 14 40-km time trials (eight experimental interspersed with six baseline). The experimental phase consisted of two trials for each of four experimental conditions: informed caffeine/received caffeine, informed no treatment/received caffeine, informed caffeine/received placebo, and informed no treatment/received no treatment. Conditions were nonrandomized. ANOVA was used to estimate main effects and interactions for mean values of power, heart rate, blood lactate, and maximal oxygen uptake. Probabilistic inferences for mean power were based on a smallest worthwhile change of 1.5%.

RESULTS: Relative to baseline, a very likely beneficial main effect of receiving caffeine (3.5%; 95% confidence interval 1.5 to 5.5%), and...