Tag: "adolescence" at biology news

Genetic factors strongly shape how peers are chosen

...ign environments, he said. The effects of peers in adolescence can be quite powerful, either encouraging or discouraging deviant behaviors. Peers also provide access to substances of abuse....

$9M grant awarded to University of Cincinnati for bipolar disorder research

...n strike at any age, but most commonly develops in adolescence or early adulthood. The disorder is characterized by alternating episodes of mania and depression, often with periods of normal mood in between. Some symptoms of a manic episode include increased energy, activity and restlessness, excessively high or...

Does stimulant treatment for ADHD increase risk of drug abuse?

...led water beginning one month after birth -- early adolescence for rats. Animals received either 1 or 2 milligram...ce that chronic methylphenidate treatment begun in adolescence affects the brain's dopamine D2 receptor levels, and thus the brain's reward circuitry, differently ...

PET/CT should be 'first-step' test for patients with Crohn's disease

... related diseases. IBD most commonly begins during adolescence and early adulthood. "The clinical course of the disease is characterized by a succession of periods of clinical relapses and remissions," said Hustinx. "Its diagnosis relies on clinical and biological signs (markers of inflammation in the blood)...

Study of damaged gene gives insight into causes of mental illness

...rder, with the first signs often appearing in late adolescence or early adulthood. Most cases arise in families with some sort of history of mental illness implying a strong influence of genes. Several different genes have been reported to pre-dispose to schizophrenia but DISC1 is one of the few which has been ...

New understanding of schizophrenia could lead to new treatment approaches

...s." Schizophrenia is typically diagnosed in late adolescence or early adulthood, but it is almost always preced...ring infancy and toddlerhood, but also during late adolescence or early adulthood just when schizophrenia strikes. "We now need to go back to patients with sch...

Prefrontal cortex loses neurons during adolescence

...hers at the University of Illinois have found that adolescence is a time of remodeling in the prefrontal cortex, ...e neurons in the ventral prefrontal cortex between adolescence and adulthood, with females losing about 13 percent more neurons in this brain region than males. ...

Feinstein Institute and Cold Spring Harbor Lab join forces, seek manic depression genes

...bipolar disorder that begins in childhood or early adolescence may be a different, possibly more severe, form of the illness than older adolescent- and adult-onset bipolar disorder. Using novel genetic technologies, the research team hopes to identify for the first time genes that influence the risk of developin...

Brain wave changes in adolescence signal reorganization of the brain

...THESDA, Md (Dec. 6, 2006) -- Brain wave changes in adolescence are related to age, not sexual maturation, and may...brain stimulus that initiates sexual maturation in adolescence also initiates the changes in the brain, but that the processes then proceed independently. . "Lon...

Diet can provide protection against development of certain cancers, new studies show

...ors has found that consuming soy during childhood, adolescence and adult life were each associated with a decreased risk of breast cancer, but that the strongest and most consistent effect was seen for childhood intake. They found that women who ate the most soy-based foods (such as tofu, miso, natto) during...

A new clinical report from the AAP recommends dairy for children with lactose intolerance

...olerance do not usually become apparent until late adolescence or early adulthood. Lactose intolerance should not be confused with milk allergies. For more information, please visit www.nationaldairycouncil.org . ...

Research team to analyze brain changes in schizophrenia

...linical manifestations generally appearing in late adolescence and early adulthood. Symptoms include hallucinations, delusions, disorders of feelings and general loss of the ability to function in everyday life. Bipolar disorder affects roughly the same number of people, characterized by alternating episodes of...

Study aims to identify schizophrenics at risk for type 2 diabetes

...uscles. Psychotic symptoms typically start in late adolescence or early adulthood. "Although psychosis is what we often treat and what tends to be noticeable and dramatic and bring people to medical attention, it's just part of the problem," says Dr. Kirkpatrick. Researchers believe developmental changes also ...

FLT PET assesses treatment response on tumor growthnot sizewith non-Hodgkin's lymphoma

...all NHL cases. DLBCL can occur at any time between adolescence and old age, and it is slightly more common in men than in women. DLBCL, like NHL, is a cancer that starts in lymphoid tissues, which includes the lymph nodes and other organs that are part of the body's system for forming blood and protecting agains...

Full year of treatment helps infants and children with toxoplasmosis

...ajority of the children in our cohort are entering adolescence without experiencing recurrent eye lesions or seizures and with normal cognitive and motor function," the authors wrote. This congenital infection, they added, is "preventable and treatable." "Prior studies had shown that untreated children or chil...

Vitamin D and flavonoids examined for impact on breast and ovarian cancers

...t said. "Current thinking is that exposures during adolescence or before a full-term pregnancy may have a greater effect, as that is when breast tissue is going through the most rapid development." Knight emphasizes that these findings are preliminary estimates of the risk reduction of breast cancer brought abou...

Combined, genes and environment affect health more than they do alone

...s on the development of high blood pressure during adolescence depend on the environmental stressors that are present, the gender and the ethnicity, in a group of European American and African American youth that have been followed for 15 years." In another study reported in the symposium, Eco De Geus, Ph.D., of...

UCLA engineering and Mattel Children's Hospital collaborate to develop children's heart valve

... or more open-heart surgeries during childhood and adolescence alone. Open-heart surgery typically requires three to four days in intensive care, at least one or two weeks in the hospital and a lengthy recovery period at home. In contrast, patients who have valves replaced via catheter could go home as early as ...

Brain changes significantly after age 18, says Dartmouth research

...devoted to the period of human development between adolescence and adulthood. "During the first year of college, especially at a residential college, students have many new experiences," says Baird. "They are faced with new cognitive, social, and emotional challenges. We thought it was important to document and...

Daughters of alcoholics

... this time; and as adolescents transition to later adolescence and young adulthood, these gender differences may become more pronounced. "Findings suggest that boys tend to have higher levels of acting-out behaviors like bad peer affiliations, delinquent behaviors, etc. than girls," said Gogineni. "However,...

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