Tag: "adolescent" at biology news
Strength of connections between brain regions may affect an adolescent's response to peer influence
... This is important if we are to understand how the adolescent
brain attains the right balance between acknowledging the influences of others and maintaining ones independence, says Paus. Future research will involve follow-up studies with the same children to determine whether their resistance to real-life pe...
Pediatric ritalin use may affect developing brain, new study suggests
...stnatal day 35, which is roughly equivalent to the adolescent
period. "These brain tissue findings revealed Ritalin-associated changes in four main areas," Dr. Milner says. "First, we noticed alterations in brain chemicals such as catecholamines and norepinephrine in the rats' prefrontal cortex -- a part of t...
Highlights from the July 2007 Journal of the American Dietetic Association
...ronutrients than Caucasian Girls African-American adolescent
and teenage girls consume less vitamin A and D, calcium and magnesium compared to Caucasian girls, according to researchers at St. Joseph College, Wesleyan University and other institutions. Regardless of race, the researchers also found a substantia...
New amfAR research grants to optimize HIV treatment
.... Dr. Leonard plans to investigate how doctors and adolescent
patients implement these findings in a clinic in Baltimore, and how the low-income and mostly minority adolescents in that clinic respond to the implementation of these new testing guidelines. Via surveys and interviews, Dr. Leonard will gather infor...
Sheep offer model for undernourishment in pregnant teen girls
... issue of Biology of Reproduction demonstrate that adolescent
female sheep that become pregnant before they have...also have implications for managing pregnancies of adolescent
human females, who, in increasing numbers worldwide, are bearing offspring before they have finished...
U of MN will lead national research study on causes of bone cancer in children
... and osteosarcoma because the timing and extent of adolescent
bone growth are mostly genetic. "We also will study how well the cells repair DNA damage naturally, and if the genes are impacted by diet, physical activity, family health history, and other lifestyle-related habits." A DNA sample will be obtained fr...
In young mice, gregariousness seems to reside in the genes
... host of behavioral variables during the course of adolescent
development, the researchers demonstrated specific differences in social motivations among juveniles of the two mouse strains - behavioral variations that could only be explained by genetic differences. Intriguingly, the Wisconsin researchers also...
Scientists find hormone activity explains adolescent mood swings
...entified, making it harder to understand and treat adolescent
angst. In the current edition of the journal Nature Neuroscience, researchers led by Sheryl S. Smith, PhD, professor of physiology and pharmacology at SUNY Downstate Medical Center, report findings demonstrating that a hormone normally released in...
Experimental Biology 2007: Today's Research, Tomorrow's Health, April 28-May 2
...n and lungs); the ways in which nicotine modulates adolescent
brain plasticity, interacts with other drugs during sensitive developmental periods, and, when used along with alcohol by a woman during pregnancy, alters drug responsiveness in offspring; an examination of why children, adolescents and adults respo...
Extreme irritability -- is it childhood bipolar disorder?
...dolescents. About 3 percent of pre-adolescent and adolescent
youth are estimated to have SMD. Mood-stabilizing and antipsychotic medications are used to treat children with BD, although the data on their effectiveness are limited and several studies are underway. Since SMD was only recently defined, there ar...
UCSF stem cell study reveals cells' capability in mouse brain tissue repair
... ventricular wall had largely been repaired. These adolescent
mice looked quite good. The finding shows that the brain has the ability to repair itself and that it is more plastic than previously appreciated." The model Kuo devised, says Jan, will provide a powerful tool for studying the response of neural st...
Brain wave changes in adolescence signal reorganization of the brain
...ptic pruning, a new study finds. The study, "The adolescent
decline of NREM delta, an indicator of brain matur...ld children suggests that girls, on average, begin adolescent
brain maturation at least one year earlier than boys. However, once they begin this maturational pro...
Diet can provide protection against development of certain cancers, new studies show
...the least amount. The corresponding reductions for adolescent
and adult intake were about 25 percent. "Childh... mixed results, but the two studies that looked at adolescent
consumption found that the risks of developing breast cancer later in life were cut in half. This st...
Drinking or playing? Men's health and masculinity
...alth is currently an area of serious concern, with adolescent
and young adult men being more likely to drink excessively and use illegal drugs, to engage in risky casual sex and to be to be killed or injured in road traffic accidents. This research shows that understanding the desire to appear masculine may hol...
Poor adolescents more likely to be overweight today than 30 years ago
...increase. "I believe that the trend in poverty and adolescent
obesity can be reversed, if there is sustained pub...velop and implement additional programs to improve adolescent
nutrition and physical exercise, especially among the poor."...
Prozac's target revealed
...e effects of Prozac and related drugs on fetal and adolescent
brain development. The researchers are currently using the approach and tools they've developed to explore whether other treatments for depression--including other drugs and deep brain stimulation--act in the same way as Prozac or in different ways. ...
Children's Hospital Boston presents at the 2006 Pediatric Academic Societies annual meeting
...estigated predictors of repeat pregnancy among 275 adolescent
mothers receiving care in 2 urban hospital-based teen-tot clinics. The teens underwent detailed interviews at enrollment and at 3-month intervals for 2 years, giving data on clinic visits, contraception, infant health care, education, relationships, ...
Highlights from the May 2006 Journal of the American Dietetic Association
...ike others, support a positive association between adolescent
sport participation and health." Children and You...cluding appropriate growth and development through adolescent
years and optimizing metabolic status. Further work to better understand the barriers to healthful d...
Alaska seal pup diet may hold key to decline of population
... and as a source of energy. Nutritionally stressed adolescent
females may take longer to reach sexual maturation and mature females that are nutritionally stressed may not reproduce, offering clues to why some harbor seal populations are falling, Polasek said. Next steps The seals will continue their low fat...
Truly informed consent must include talking about future fertility, warn experts
...n be just as embarrassing for medical staff as for adolescent
cancer patients, the 4th International Conference ...ertility of patients diagnosed in their childhood, adolescent
or young adult years is becoming increasingly important. "Advances in assisted reproductive technolo...
1 2 3