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Biomedical subjects

Regina C Casper

Publications and source records attributed to Regina C Casper.

5 recordsLinked to original sources

The 'drive for activity' and "restlessness" in anorexia nervosa: potential pathways.

This paper discusses the hypothesis that a 'drive for activity" in the presence of physiological and endocrine changes consistent with starvation is a characteristic symptom of acute anorexia nervosa (AN). This 'drive for movement', along with alertness and lack of fatigue, so unlike the motor slowing and loss of energy observed in simple starvation has been recognized in AN throughout history, but has received little attention in the past fifty years. Clinical reports and experimental evidence suggest that 'restlessness' and a 'drive for activity' vary in intensity, they appears to be starvation-dependent and to wane with food intake. Central nervous system (CNS) systems known to be involved in mediating activity and arousal levels that are altered by the negative energy expenditure in AN are reviewed. Among these, the corticotropin-releasing hormone (CRH) system, the melanocyte stimulating hormone/agouti-related protein (MSH/AGRP) system and the norepinephrine/epinephrine (NE/EPI) and dopamine (DA) system may contribute to the 'drive for activity' and alertness in AN. AN appears to represent a disorder of gene/environment interaction. Future research will reveal whether in individuals predisposed to AN, the 'drive for activity' reflects the reactivation of mechanisms important in food scarcity, controlled by one or more evolutionary conserved genes including those regulating foraging behavior. Recognition of the 'drive for activity' as a diagnostic symptom of AN and its assessment prior to re-nutrition would permit clarification of its role in the etiology of AN.

Anorexia Nervosa↗

Nutrients, neurodevelopment, and mood.

Human neurodevelopment is the result of genetic and environmental interactions. This paper examines the role of prenatal nutrition relative to psychiatric disorders and explores the relationship among nutrients, mood changes, and mood disorders. Epidemiologic studies have found that adults who were born with a normal, yet low birth weight have an increased susceptibility to diseases such as coronary heart disease, diabetes, and stroke in adulthood. Prenatal caloric malnutrition, low birth weight, and prematurity also increase the risk for neurodevelopmental disorders, schizophrenia, affective disorders, and schizoid and antisocial personality disorders. Placebo-controlled studies in medicated patients suggest that add-on treatment with omega-3 fatty acids, particularly eicosapentaenoic acid, may ameliorate symptoms of major depressive disorder. Additional studies are necessary to confirm any benefits for bipolar disorders.

Adult↗

Follow-up of children of depressed mothers exposed or not exposed to antidepressant drugs during pregnancy.

OBJECTIVE: To compare the structural growth and developmental outcome of children born to mothers diagnosed with major depressive disorder during pregnancy who were exposed or not exposed to selective serotonin reuptake inhibitors (SSRIs) in utero. STUDY DESIGN: Children whose mothers were diagnosed with major depressive disorder in pregnancy and elected not to take medication (n = 13) were compared with children of depressed mothers treated with SSRIs (n = 31) on birth outcomes and postnatal neurodevelopmental functioning between ages 6 and 40 months. Children underwent blinded standardized pediatric and dysmorphology examinations and evaluations of their mental and psychomotor development with the use of the Bayley Scales of Infant Development (BSID II). RESULTS: The Bayley mental developmental indexes were similar in both groups. Children exposed to SSRIs during pregnancy had lower APGAR scores and scored lower on the Bayley psychomotor development indexes and the motor quality factor of the Bayley Behavioral Rating Scale than unexposed children. CONCLUSIONS: The findings that SSRIs during fetal development might have subtle effects on motor development and motor control are consistent with the pharmacologic properties of the drugs.

Adult↗

How useful are pharmacological treatments in eating disorders?

The eating disorders anorexia nervosa (AN) and bulimia nervosa (BN) are multifactorial syndromes of unknown origin which occur typically in female adolescents or young women. Nowadays, AN and BN are most often triggered by dietary restriction. Both are treatable conditions. As in other psychiatric disorders, a lower comorbidity, a shorter duration of illness, less familial psychopathology, and, in AN, a higher minimal weight have been shown to be associated with a better outcome. So far, no abnormalities specific to AN or BN that would shed light on their etiology have been identified. Controlled and uncontrolled studies testing antipsychotic, antidepressant, weight-promoting, and prokinetic drugs have demonstrated that the core symptoms of AN are refractory to currently available psychotropic medication. For relapse prevention, however, antidepressant medication may be useful. Renutrition, psychotherapy, and family therapy remain the cornerstones of treatment for AN. Placebo-controlled studies with antidepressant drugs have been far more promising for treating BN in the short term. Recent studies have found that lasting symptomatic improvement and remission require the addition of psychological treatments in the form of cognitive and interpersonal psychotherapy. The steady stream of newly identified peptides and other molecules involved in appetite and body weight control may ultimately provide cues to better targeted treatments of eating disorders.

Adolescent↗