PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Increasing consumption of coffee is associated with reduced risk of type 2 diabetes

2014-04-25
(Press-News.org) New research published in Diabetologia (the journal of the European Association for the Study of Diabetes) shows that increasing coffee consumption by on average one and half cups per day (approx 360ml) over a four-year period reduces the risk of type 2 diabetes by 11%. The research is led by Dr Frank Hu and Dr Shilpa Bhupathiraju, Department of Nutrition, Harvard School of Public Health, Harvard University, Boston, MA, USA, and colleagues.

Coffee and tea consumption has been associated with a lower type 2 diabetes risk but little is known about how changes in coffee and tea consumption influence subsequent type 2 diabetes risk. The authors examined the associations between 4-year changes in coffee and tea consumption and risk of type 2 diabetes in the subsequent 4 years.

The authors used observational data from three large prospective, US-based studies in their analysis: the Nurses' Health Study (NHS) (female nurses aged 30-55 years, 1986-2006), the NHS II (younger female nurses aged 25-42 years 1991-2007), and the Health Professionals Follow-up Study (HPFS) (male professionals 40-75 years, 1986-2006). Detailed information on diet, lifestyle, medical conditions, and other chronic diseases was collected every 2 to 4 years for over 20 years.

The availability of these repeated measures and the long-duration of follow-up allowed the authors to evaluate 4 year changes in coffee and tea intake in relation to risk of type 2 diabetes in the following 4 years. They also examined whether the association with diabetes incidence differed between changes in caffeinated and decaffeinated coffee. Diet was assessed every 4 years using a validated food frequency questionnaire. Self-reported incident type 2 diabetes cases were validated by supplementary questionnaires. The final analysis included 48,464 women in NHS, 47,510 women in the NHS II, and 27,759 men in HPFS.

The authors documented 7,269 incident type 2 diabetes cases, and found that participants who increased their coffee consumption by more than 1 cup/day (median change=1.69 cups/day) over a 4-year period had a 11% lower risk of type 2 diabetes in the subsequent 4-years compared to those who made no changes in consumption. Participants who decreased their coffee intake by 1 cup a day or more (median change=-2 cups/day) had a 17% higher risk for type 2 diabetes. Changes in tea consumption were not associated with type 2 diabetes risk.

Those with highest coffee consumption and who maintained that consumption—referred to as "high-stable consumers" since they consumed 3 cups or more per day—had the lowest risk of type 2 diabetes, 37% lower than the "low-stable consumers" who consumed 1 cup or less per day.

The authors say that the higher risk of type 2 diabetes associated with decreasing coffee intake may represent a true change in risk, or may potentially be due to reverse causation whereby those with medical conditions associated with risk for type 2 diabetes (such as high blood pressure, elevated cholesterol, cardiovascular disease, cancer) may reduce their coffee consumption after diagnosis. However, even when cases of cardiovascular disease or cancer were excluded during follow-up, the results were very similar.

While baseline decaffeinated coffee consumption was associated with a lower type 2 diabetes risk, the changes in decaffeinated coffee consumption did not change this risk. Regarding tea consumption, the authors say: "we found no evidence of an association between 4-year increases in tea consumption and subsequent risk of type 2 diabetes. This finding may have potentially been due to the relatively low number of participants who made significant changes to their tea consumption over a 4-year period thereby limiting statistical power to detect true associations. The overall low levels of tea consumption in this group may also be responsible for these findings."

The authors say: "In these 3 large prospective cohorts with more than 1.6 million person-years of follow-up, we observed that increasing coffee, but not tea, intake over a 4-year period was associated with a lower type 2 diabetes risk in the next 4 years. Decreasing coffee intake was associated with a higher type 2 diabetes risk. These changes in risk were observed for caffeinated, but not decaffeinated coffee, and were independent of initial coffee consumption and 4-year changes in other dietary and lifestyle factors."

They add: "Changes in coffee consumption habits appear to affect diabetes risk in a relatively short amount of time. Our findings confirm those of prospective studies that higher coffee consumption is associated with a lower type 2 diabetes risk and provide novel evidence that changes in coffee consumption habits are related to diabetes risk."

INFORMATION: END


ELSE PRESS RELEASES FROM THIS DATE:

Increasing daily coffee consumption may reduce type 2 diabetes risk

2014-04-25
Boston, MA — People who increased the amount of coffee they drank each day by more than one cup over a four-year period had a 11% lower risk for type 2 diabetes than those who made no changes to their coffee consumption, according to a new study led by Harvard School of Public Health (HSPH) researchers. In addition, the study found that those who decreased their coffee consumption by more than a cup per day increased their type 2 diabetes risk by 17%. "Our findings confirm those of previous studies that showed that higher coffee consumption was associated with lower ...

Researchers trace HIV adaptation to its human host

2014-04-25
"Much research has focused on how HIV adapts to antiviral drugs – we wanted to investigate how HIV adapts to us, its human host, over time," says lead author Zabrina Brumme from Simon Fraser University. In a study published in PLOS Genetics, which traces the evolution of HIV in North America, the Brumme lab and colleagues at the BC Centre for Excellence in HIV/AIDS, Harvard University, the New York Blood Center, and The San Francisco Department of Public Health found evidence that the virus is slowly adapting over time to its human hosts. However, this change is so gradual ...

Low-dose natural antimicrobial exacerbates chronic lung infection in cystic fibrosis

Low-dose natural antimicrobial exacerbates chronic lung infection in cystic fibrosis
2014-04-25
Respiratory failure caused by chronic lung infection with Pseudomonas aeruginosa bacteria is a common cause of death in patients with cystic fibrosis (CF), a genetic disease that is common in individuals of European descent. A study published on April 24th in PLOS Pathogens demonstrates that an antimicrobial peptide produced by human immune cells can promote mutations in the bacterium that make it more lethal. Daniel Wozniak, from The Ohio State University Wexner Medical Center, USA, and colleagues studied a process called "mucoid conversion", which involves mutations ...

Many patients who could benefit from home dialysis are receiving care in dialysis centers

2014-04-25
Washington, DC (April 24, 2014) — Many kidney failure patients in Australia who could benefit from undergoing dialysis at home are being treated in hospitals and dialysis units, according to a study appearing in an upcoming issue of the Clinical Journal of the American Society of Nephrology (CJASN). This is creating significant costs for healthcare providers and causing unnecessary disruptions to patients' lives. Home dialysis is more convenient for patients and can provide similar or better care than hemodialysis, which must be done in a clinic. Blair Grace, PhD (Australia ...

Muscle mass linked with physical function and quality of life in dialysis patients

2014-04-25
Washington, DC (April 24, 2014) — Dialysis patients with more muscle mass had better scores on a 6-minute walking test as well as better scores on physical and mental health questionnaires in a study appearing in an upcoming issue of the Clinical Journal of the American Society of Nephrology (CJASN). The findings suggest that physical activity that builds muscle mass may help improve the health and quality of life of dialysis patients. Physical functional ability is often significantly impaired in patients on maintenance hemodialysis. Srinivasan Beddhu, MD (University ...

Astronomical forensics uncover planetary disks in NASA's Hubble archive

Astronomical forensics uncover planetary disks in NASAs Hubble archive
2014-04-25
Astronomers using NASA's Hubble Space Telescope have applied a new image processing technique to obtain near-infrared scattered light photos of five disks observed around young stars in the Mikulski Archive for Space Telescopes database. These disks are telltale evidence for newly formed planets. If astronomers initially miss something in their review of data, they can make new discoveries by revisiting earlier data with new image processing techniques, thanks to the wealth of information stored in the Hubble data archive. This is what Rémi Soummer, of the Space Telescope ...

Study suggests targeting B cells may help with MS

2014-04-24
PHILADELPHIA – A new study suggests that targeting B cells, which are a type of white blood cell in the immune system, may be associated with reduced disease activity for people with multiple sclerosis (MS). The study is released today and will be presented at the American Academy of Neurology's 66th Annual Meeting in Philadelphia, April 26 to May 3, 2014. For the study, 231 people with relapsing-remitting MS received either a placebo or one of several low dosages of the drug ofatumumab, which is an anti-B cell antibody, for 24 weeks, with the first 12 weeks making up ...

New guidelines aim to improve care for babies with heart problems in the womb

2014-04-24
Fetal heart experts working with the American Heart Association have developed guidelines to help healthcare providers care for unborn babies with heart problems, as well as their families. The statement, Diagnosis and Treatment of Fetal Cardiac Disease, is published in the American Heart Association journal, Circulation. "Congenital heart disease is the most common birth defect that can result in either death or significant health problems in newborn babies," said Mary T. Donofrio, M.D., lead writer of the statement, and director of the Fetal Heart Program and Critical ...

Genetic alterations in shared biological pathways as major risk factor for ASD

2014-04-24
A substantial proportion of risk for developing autism spectrum disorders (ASD), resides in genes that are part of specific, interconnected biological pathways, according to researchers from the Icahn School of Medicine at Mount Sinai, who conducted a broad study of almost 2,500 families in the United States and throughout the world. The study, titled "Convergence of Genes and Cellular Pathways Dysregulated in Autism Spectrum Disorders," was first published online in the American Journal of Human Genetics on April 24. ASD affects about one percent of the population ...

Controlling brain waves to improve vision

Controlling brain waves to improve vision
2014-04-24
Have you ever accidently missed a red light or a stop sign? Or have you heard someone mention a visible event that you passed by but totally missed seeing? "When we have different things competing for our attention, we can only be aware of so much of what we see," said Kyle Mathewson, Beckman Institute Postdoctoral Fellow at the University of Illinois. "For example, when you're driving, you might really be concentrating on obeying traffic signals." But say there's an unexpected event: an emergency vehicle, a pedestrian, or an animal running into the road—will you actually ...

LAST 30 PRESS RELEASES:

Program takes aim at drinking, unsafe sex, and sexual assault on college campuses

Inability to pay for healthcare reaches record high in U.S.

Science ‘storytelling’ urgently needed amid climate and biodiversity crisis

KAIST Develops Retinal Therapy to Restore Lost Vision​

Adipocyte-hepatocyte signaling mechanism uncovered in endoplasmic reticulum stress response

Mammals were adapting from life in the trees to living on the ground before dinosaur-killing asteroid

Low LDL cholesterol levels linked to reduced risk of dementia

Thickening of the eye’s retina associated with greater risk and severity of postoperative delirium in older patients

Almost one in ten people surveyed report having been harmed by the NHS in the last three years

Enhancing light control with complex frequency excitations

New research finds novel drug target for acute myeloid leukemia, bringing hope for cancer patients

New insight into factors associated with a common disease among dogs and humans

Illuminating single atoms for sustainable propylene production

New study finds Rocky Mountain snow contamination

Study examines lactation in critically ill patients

UVA Engineering Dean Jennifer West earns AIMBE’s 2025 Pierre Galletti Award

Doubling down on metasurfaces

New Cedars-Sinai study shows how specialized diet can improve gut disorders

Making moves and hitting the breaks: Owl journeys surprise researchers in western Montana

PKU Scientists simulate the origin and evolution of the North Atlantic Oscillation

ICRAFT breakthrough: Unlocking A20’s dual role in cancer immunotherapy

How VR technology is changing the game for Alzheimer’s disease

A borrowed bacterial gene allowed some marine diatoms to live on a seaweed diet

Balance between two competing nerve proteins deters symptoms of autism in mice

Use of antifungals in agriculture may increase resistance in an infectious yeast

Awareness grows of cancer risk from alcohol consumption, survey finds

The experts that can outsmart optical illusions

Pregnancy may reduce long COVID risk

Scientists uncover novel immune mechanism in wheat tandem kinase

Three University of Virginia Engineering faculty elected as AAAS Fellows

[Press-News.org] Increasing consumption of coffee is associated with reduced risk of type 2 diabetes