Tag: "carbohydrate" at biology news
Sugar-coated sea urchin eggs could have sweet implications for human fertility
...lity, the jelly coating contains a general type of carbohydrate
in the purple sea urchin but in other species the .... Now we know that eggs can change the lock in the carbohydrate
door too." Biermann is first author of a paper describing the findings in the September-October edi...
Sweet success in targeting sugar molecules to cells in living animals
...d for chemistry." Glycosylation is the addition of carbohydrate
(sugar) groups to a molecule. It has long been known that the glycosylation patterns of sugar molecules on cell surfaces can influence their interaction with other cells. "Glycobiologists have known that cancer cells, for example, exhibit changes in ...
Body's own defense against H. pylori, cause of stomach ulcers and stomach cancer
...f glycoproteins, called O-glycans, linked with the carbohydrate
alpha 1,4-N-acetylglusoseamine, cloned previously in Dr. Fukuda's laboratory. Because the alpha 1,4-linked N-acetylgucosamine is confined to the stomach's deeper mucosa lining, which also lacks H. pylori, the scientists investigated the possibil...
Study links high carbohydrate diet to increased breast cancer risk
...ontribute to it at the cellular level." Of all the carbohydrate
compounds, sucrose and fructose demonstrated the s...history of breast cancer, the relationship between carbohydrate
intake and breast cancer remained the same. Dietary fat certainly a contributor to obesity fared w...
New glycan arrays discover autoimmunogenic activities of SARS-CoV: concern over monkey vaccine
...nd Guangzhou, China applied the rapidly-developing carbohydrate
microarray technology to study an inactivated SARS...can microarrays, the researchers characterized the carbohydrate
binding activity of SARS-CoV neutralizing antibodies elicited by an inactivated SARS viral vaccine a...
Scientists discover new intricacies in how ulcer bugs stick to stomach
...lp H. pylori stick to the stomach wall, binds to a carbohydrate
structure known as the Lewis b antigen receptor. In humans with different blood types, this receptor either stands alone (blood type O) or contains additional sugars (blood types A and B), changing the shape of the target babA seeks to bind. "...
Was Atkins right?
...se basal levels could be attributed to its reduced carbohydrate
content. This contrasts with the results of many studies that have acknowledged the fact that high protein intakes induce an increase in glucose and insulin concentrations. Conclusions This unique long-term study found that in male rats, a ...
In the obese, metabolic adaptations post-weight loss lead to regaining of shed pounds
...d lower after the adjustment of energy balance and carbohydrate
(CHO) intake, suggesting a preference for lipid us...t maintenance. The researchers did determine that carbohydrate
disappearance was proportionally higher. Thus, the second major conclusion is that continued mainten...
Gestational diabetes not found to alter the metabolic processes in obese pregnant women
...etes mellitus (GDM) relative to the alterations in carbohydrate
metabolism during gestation. However, similar dat...n, tobacco, or other medications that might affect carbohydrate
metabolism or energy expenditure. None of the study subjects had diabetes mellitus before conception...
UF researcher: New low-carb potato to debut in January
... a new low-carb potato will help win back die-hard carbohydrate
counters. "Consumers are going to lo...ounces of the new potato contain about 13 grams of carbohydrate
compared to around 19 grams in the same size serving of a Russet Burbank potato. ...
Nanoparticles illuminate brain tumors for days under MRI
...aid. "It's an iron oxide crystal surrounded with a carbohydrate
or 'sugar' coating," Neuwelt said. This coating, called dextran, gives the particle a longer plasma half-life, allowing it to slowly slip through the blood-brain barrier, or BBB, the tightly knit group of cells lining the walls of blood vessels in th...
Two studies weigh in on low-carb diets
... adults randomized into two groups. One restricted carbohydrate
intake to less than 30 grams per day (low-carbohyd...ious methods for weight control, including reduced carbohydrate
diets, as long as they emphasize healthy sources of fat and protein and incorporate regular physical...
Sea turtle health linked to contaminants
...er damage, and possible alterations in protein and carbohydrate
regulation. The data may help scientists understand and address population declines in sea turtles, all species of which are threatened or endangered. The NIST work was performed at the Hollings Marine Laboratory in Charleston, S.C., in which NIST i...
UC Riverside researchers develop low-carb corn with enhanced protein and oil
...protein and oil content of corn while reducing its carbohydrate
content, a boost for growers to feed both people and livestock. Biochemist Daniel R. Gallie and his research team, Todd Young and Jane Giesler-Lee, published their findings this week in the June issue of The Plant Journal. Flowers in the corn ear de...
Protein-centric drug development and functional glycomics enrich biopharmaceuticals pipeline
... a glycotherapeutic drug contains two additional carbohydrate
groups that can extend circulatory half-life and m... on glycosyltransferases to understand the role of carbohydrate
interactions in a cancerous cell is also likely to provide further opportunities for application of ...
New studies show Curves Program raises metabolic rate in overweight and sedentary women
...roach limited to 30 percent fat intake and the low carbohydrate
and high protein approach. The studies looked at how the program affected body composition, resting energy expenditure, training adaptations, health markers such as blood lipid levels, relationship of leptin to weight loss, insulin sensitivity, qual...
Obesity drug inhibits prostate tumor growth
... acid synthase is the enzyme that converts dietary carbohydrate
to fat. The screen also identified orlistat, marketed by Roche as Xenical TM , as an inhibitor of fatty acid synthase. These discoveries, made in vitro, held true when tested in mice. When they administered orlistat to mice bearing prostate tu...
As obesity skyrockets, Joslin Diabetes Center urges action to stem the tide of type 2 diabetes
...is not whether a low fat diet is better than a low carbohydrate
diet or vice versa. "It boils down to how much we eat and how active we are," he says. "While research at Joslin and elsewhere has shown that genetics and metabolic factors play a key role in body weight, we know that Americans' expanding wai...
Carbohydrates offer some help in muscle protein synthesis, but not enough for the desired effect
...istance exercise. Additionally, it is unclear how carbohydrate
intake causes changes of net protein balance betwe...y set out to investigate the independent effect of carbohydrate
intake on muscle protein net balance during recovery from resistance exercise. The authors of "Effe...
A killer microbe as a living antibiotic
... that is capable of degrading lipids, proteins and carbohydrate
molecules, Bdellovibrio then generates an opening in the cell wall of the prey. Via a pulling motion the predator navigates itself in the "periplasmic space" between the outer and inner membrane of the prey cell. Bdellovibrio can remain encysted ...
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