Patients with diabetes mellitus, hypertension, renal and hepatic insufficiency, and major depression, active problem to interfere with oral intake and who were under active chemotherapy were excluded from the study.
They found out that depression in and of itself was much less consequential for academic achievement than were attention problems, delinquency and substance use, problems known to interfere with school activities and teacher authority.
All blood samples were taken as a part of routine laboratory evaluations and were collected after a 12 h fasting period, with care taken to avoid possible medications and possible diets and dietary problems known to interfere with serotonin levels.
Healthy subjects were excluded if they or any of their close relatives had a lifetime history of a severe psychiatric disorder (schizophrenia, bipolar disorder and major depression), a history of medical problems thought to interfere with brain function (hypothyroidism, uncontrolled hypertension and diabetes), or significant illicit drug use.
Anyone whose telephone interview or IPT results suggested onset of cognitive problems sufficient to interfere with daily activities was invited to participate in a complete in-person clinical evaluation.
The subjects enrolled were lean and did not present any health problems likely to interfere with the variables studied, as judged from medical history, clinical examination, standard blood biochemistry and hematology.
In addition, high amounts of 'contaminating' RNA are likely to add to this problem and to interfere with microarray analysis.
Akerlof (1970) early indicated that informational problems are likely to interfere with market-clearing mechanisms.
We have tried to circumvent these problems, avoiding intentionally to interfere with the phagocytic process, and have chosen three experimental set-ups that allow indirectly to distinguish effects on gene expression due to phagocytosis from adaptation to growth on bacteria versus axenic growth.
These consisted of individuals whose back problem was thought to interfere with military service, in other words they would represent cases of more serious back problems than mere "any back problem in the past or present", commonly used in other epidemiologic studies.
