Tag: "sedentary" at biology news

Smithsonian scientists show differing patterns of rainforest biodiversity

...bution of insect species was a surprise, given the sedentary lifestyles of many species. Some spend their entire lives on a single plant, but theyve got wings. They may not want to fly, but they can if they need to, said Smithsonian scientist Scott Miller, an author of the Nature paper. The insects also sho...

Cardio exercise benefits in male vs. female hearts

...ricular hypertrophy) compared to their sex-matched sedentary controls experienced a 20 percent decrease in the protein that promotes cell function while there were no changes in males decreased /MHC ratio by 41 percent while the males experienced no change Conclusions According to Dr. Brokat...

How to structure a complex body plan

...ologically integrated modules (polyps). Like other sedentary colonial marine organisms, corals may generate extremely broad structures, changing their morphologies by growing new polyps above existing structures. In branching forms, two higher levels of organization exist, the branch and the colony. Despite th...

Metabolic syndrome -- don't blame the belly fat

...g, lean, non-smoking, healthy individuals who were sedentary and matched for physical activity. Aside from insulin resistance in one cohort, these volunteers had none of the other confounding factors typically associated with obesity and type 2 diabetes, which have been thought to play a key role in the pathog...

Natural compound and exercise boost memory in mice

...d neurodegeneration. The researchers found that sedentary mice fed epicatechin showed enhanced memory, blood vessel growth, and gene activity, but these benefits were even more evident in mice that also exercised. "A logical next step will be to study the effects of epicatechin on memory and brain blood f...

Urbanization favors sedentary males

...opean blackbirds. In partially migratory species, sedentary individuals are not only able to establish territories and to begin pair formation earlier than migratory birds, but also may have a longer reproductive season. The earlier onset of favorable conditions for breeding in urban areas should, thus, favor...

Researchers identify new genetic risk factors for type 2 diabetes

...usually appears after age 40, often in overweight, sedentary individuals. However, an increasing number of younger people and even children are developing the disease, which is characterized by the resistance of target tissues to respond to insulin and a gradual failure of insulin-secreting cells in the pancre...

No sign that ethnic groups' genes cause diabetes, international research team says

...that leads to obesity and diabetes in comfortable, sedentary modern lifestyles. "Our study challenges the presumption that Native American, Mexican American, African American, Australian Aborigine, or other indigenous groups are genetically prone to diabetes because the evidence demonstrates that higher rate...

MU researchers to study how changes in infrastructure affect physical activity behavior

...s at MU. "Much of the problem can be linked to the sedentary lifestyle of modern society and our lack of physical activity." Physical activity is vital in the prevention of obesity and chronic diseases such as diabetes and heart disease, but over the past 50 years, physical activity has been engineered out o...

Exercise can reduce a smoker's lung cancer risk, but quitting smoking is still most important

... has a 35 percent lower risk of lung cancer than a sedentary smoker, but if both smokers quit, they would both reduce their risk by as much as 10- or 11-fold. "Smokers who exercise are at a 35 percent lower risk of developing lung cancer relative to smokers who dont exercise, but if you smoke at all, your risk...

Genetic experts investigate causes of harmful metabolic disorder

...ealthy food intake, little exercise and an overall sedentary lifestyle to cause metabolic syndrome. Primary risk factors for the condition include central obesity (around and in the abdomen), high blood pressure, glucose intolerance and blood-fat disorders that promote plaque buildup in the artery walls. D...

Histamine tied to changes in blood pressure during exercise-recovery period

... the treatment of acid reflux. For the study, 28 sedentary and endurance-trained men and women were monitored closely throughout a session that covered a pre-exercise period, a 60-minute ride on a cycling machine and a 90-minute recovery period. The participants were all non-smokers without blood pressure pr...

Resistance to chemotherapy in lung cancer, optimizing flu vaccination strategies

...iabetes in later life are obesity, poor diet and a sedentary lifestyle. The genetic risk of diabetes results from inheriting a number of variants in many different genes. Most of these gene variants are common in the population but each gene variant only mildly increases the risk that a person possessing it w...

University of Florida study shows leptin could combat type 2 diabetes

...ost cases of type 2 diabetes result from leading a sedentary lifestyle, being overweight and overeating. If left untreated, type 2 diabetes can also cause cardiovascular disease, kidney disease and blindness. Aside from keeping blood sugar and insulin levels down, the rodents that received gene therapy al...

Landscape corridors promote plant diversity

...amschen says. "Plants are thought to be relatively sedentary organisms that are heavily influenced by their environmental surroundings. This study indicates that plants can change relatively quickly through their interactions with the landscape and the animals that interact with them, such as seed dispersers, ...

Figuring out function from bacteria's bewildering forms

... in which the cells have a single flagellum, and a sedentary "stalked" phase in which the cells shed their flagella, affix themselves to rocks or pebbles (or the sides of water pipes) with the help of a very sticky adhesive, and then grow a stalk. In April, Brun and colleagues from Brown University reported...

Oceanic invasions across Darwin's impassable barrier

... mitochondrial DNA from 20 morphospecies of fairly sedentary shore fish on both sides of the divide, the study confirms close relationships between populations of the same fish species across the barrier and indicates that genes move in both directions across the barrier. Luck affects who makes it across and ...

Cutting calories slightly can reduce aging damage

...mpared with samples taken from young rats. The old sedentary rats that ate until they were full had increased levels of harmful oxidizing and inflammatory molecules in the liver that were associated with cell damage caused by aging. Meanwhile, aging rats that exercised and consumed a calorie-restricted diet, h...

Ads for unhealthy foods may explain link between television viewing and overweight in children

...eption is that this is due to the fact that it's a sedentary use of time," said Jean Wiecha, the study's lead a...an two hours of television each day to both lessen sedentary time (a risk factor for childhood overweight) and reduce exposure to content associated with negativ...

For some young fish, early gene expression is a clear harbinger of fated lifestyle

...profoundly affect their future: whether to adopt a sedentary or migratory lifestyle. Sedentary (or "residential...hers showed that many genes of genetically similar sedentary and migrant populations living in the same river were expressed at different levels. At the same tim...

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