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PubMed2005

Positive emotions: exploring the other hemisphere in behavioral medicine.

The search for the psychological antecedents of medical disorders has focused on the role of stress and negative emotional states. Previous research in this area has investigated relations between negative emotions and physiological adaptations (e.g., blood pressure elevations), adverse health behaviors (e.g., smoking), and social conditions (e.g., social isolation). In this discussion, we argue that more attention is needed to understand the effects of positive emotional states on health enhancement and disease prevention. In each of the areas cited previously, evidence is beginning to emerge that indicates that positive emotions can be associated with health promoting conditions. Interventions using cognitive behavioral strategies or meditation can increase positive emotional states that are maintained over time and that may benefit health and well-being. Implications for behavioral medicine are discussed.

Adaptation, Physiological↗
PubMed1993

[Life conditions and health behavior of socially disadvantaged women: implications of an action-theoretic model of social structure for health research].

To operationalize social status epidemiology of social inequalities in health uses uncompounded indices, as school and job education, income and occupational status. Social epidemiology describes social inequalities from a more comprehensive perspective, including indicators of social status as well as subjective attitudes and behavior. Examples of a study on smoking in women indicate a broader framework of the relation between social indicators and healthy lifestyles. Action oriented theory of social inequalities substantiate restrictions of this epidemiological approach. Social analysis should focus on lifestyles and behavioral resources to reach overall life targets. An example of a qualitative study on health behavior in women prove the impact of this sociological theory for public health research. Health behavior of women from the lower SES is developed and improved in life history. It can be described as the capability to reach life targets regarding to health and social conditions.

Adult↗
PubMed2005

Behavioral assessment of intermittent wheel running and individual housing in mice in the laboratory.

Physical cage enrichment--exercise devices for rodents in the laboratory--often includes running wheels. This study compared responses of mice in enriched physical and social conditions and in standard social conditions to wheel running, individual housing, and open-field test. The study divided into 6 groups, 48 female BALB/c mice group housed in enriched and standard conditions. On alternate days, the study exposed 2 groups to individual running wheel cages. It intermittently separated from their cage mates and housed individually 2 groups with no running wheels; 2 control groups remained in enriched or standard condition cages. There were no significant differences between enriched and standard group housed mice in alternate days' wheel running. Over time, enriched, group housed mice ran less. Both groups responded similarly to individual housing. In open-field test, mice exposed to individual housing without running wheel moved more and faster than wheel running and home cage control mice. They have lower body weights than group housed and wheel running mice. Intermittent withdrawal of individual housing affects the animals more than other commodities. Wheel running normalizes some effects of intermittent separation from the enriched, social home cage.

Animal Welfare↗
PubMed1990

Multidimensional behavioral effects of marijuana.

1. Five groups of three healthy adult male volunteers (n = 15), all reporting occasional, controlled marijuana use, gave written consent and participated in residential studies lasting 6 to 15 days. 2. Subjects smoked marijuana cigarettes (0, 1.3, 2.3 or 2.7% THC, w/w) at 0945, 1330, 1700 and 2030 every day, and each subject received both active and placebo marijuana cigarettes in 2-5 consecutive day phases, with placebo and active doses presented in an alternating fashion. 3. In comparison with placebo, active marijuana produced a variety of effects on measures of human behavior, including increases in food consumption and errors on psychomotor tasks, decreases in bouts of tobacco-cigarette smoking and verbal interactions and no changes in rates of task performance, time spent under social conditions or social cooperation. 4. Dimensions of human behavior were differentially sensitive to the effects of smoked marijuana. 5. The simultaneous measurement of multiple dimensions of human behavior is a useful procedure for determining dose potency following marijuana administration.

Adult↗
PubMed2006

Neuroendocrine and neurotransmitter correlates in children with antisocial behavior.

When antisocial behavior becomes a persistent pattern that affects diverse domains of children's functioning, psychiatrists refer to oppositional defiant disorder (ODD) or conduct disorder (CD). The term disruptive behavior disorder (DBD) covers both ODD and CD. Research shows that in the absence of effective interventions, the prognosis for DBD children is relatively unfavorable: their disorder can extend into adolescence, manifest itself in delinquency, and convert into other psychiatric symptoms, such as addiction or personality disorders. Although environmental factors have traditionally attracted most attention in explaining the origin and persistence of DBDs, it is important not to overlook the vulnerability of the child in the development of antisocial behavior. Relatively few studies have been conducted on the neurobiological factors involved in the development of DBDs in children. In this paper, we explain how problems in hypothalamic-pituitary-adrenal (HPA) axis and serotonergic system functioning could be important factors in the behavioral problems of DBD children. Low fear of punishment and physiological underactivity may predispose antisocial individuals to seek out stimulation or take risks and may explain poor (social) conditioning and socialization. Findings consistent with this hypothesis are presented. Finally, we explain how stress in general, and adverse early life experiences in particular, could have an impact on the development of the HPA and serotonergic systems. An investigation of the neurobiological factors involved in antisocial behavior disorder might ultimately guide the development of new forms of intervention.

Aggression↗
PubMed1999

Maternal separation and early social deprivation in Octodon degus: quantitative changes of nicotinamide adenine dinucleotide phosphate-diaphorase-reactive neurons in the prefrontal cortex and nucleus accumbens.

The influence of postnatal socio-emotional deprivation on the development of nicotinamide adenine dinucleotide phosphate (NADPH)-diaphorase-reactive neurons in prefrontal cortical areas and in subdivisions of the nucleus accumbens was quantitatively investigated in the precocious rodent Octodon degus. Forty-five-days-old O. degus from two animal groups were compared: (i) degus which were repeatedly separated from their mothers during the first three postnatal weeks and after weaning reared in complete isolation; and (ii) degus which were reared under normal undisturbed social conditions. Socially-deprived animals displayed a significant decrease of NADPH-diaphorase-containing neurons in anterior cingulate cortex (85.5%), the same tendency was observed in the infralimbic, precentral medial and prelimbic prefrontal areas. Similarly, the core region of nucleus accumbens expressed reduced NADPH-diaphorase-reactive neuron numbers in deprived animals (70%), whereas the shell region remained unchanged. Since during normal postnatal development the number of NADPH-diaphorase-reactive neurons gradually decreases in all prefrontal cortical and accumbal regions, the observed deprivation-induced changes may reflect either an excessive reduction of NADPH-diaphorase-positive neurons or a down-regulation of the enzyme in neurons that normally express it. Since some NADPH-diaphorase-containing neurons in the prefrontal cortex have been shown to be GABAergic, it is tempting to speculate that a reduction of these inhibitory neurons in the anterior cingulate cortex may result in an enhanced excitatory output activity of disinhibited projection neurons in this cortical region, including those that project to the core region of the nucleus accumbens. Our results indicate a link between early adverse socio-emotional experience and the maturation of NADPH-reactive neurons and further studies are required to analyse the functional implication for this experience-induced brain pathology.

Aging↗
PubMed2001

Social context effects on facial activity in a negative emotional setting.

Evidence for A. J. Fridlund's (e.g.. 1994) "behavioral ecology view" of human facial expression comes primarily from studies of smiling in response to positive emotional stimuli. Smiling may be a special case because it clearly can, and often does serve merely communicative functions. The present experiment was designated (a) to assess the generalizability of social context effects to facial expressions in response to negative emotional stimuli and (b) to examine whether these effects are mediated by social motives, as suggested by the behavioral ecology view. Pairs of friends or strangers viewed film clips that elicited different degrees of sad affect, in either the same or a different room; a control group participated alone. Dependent variables included facial activity, subjective emotion, and social motives. Displays of sadness were influenced by stimulus intensity and were lower in all social conditions than in the alone condition. Unexpectedly, social context effects were also found for smiling.

Affect↗
PubMed2006

Innovations in agonist maintenance treatment of opioid-dependent patients.

PURPOSE OF REVIEW: To provide an overview of published studies on agonist maintenance treatment options for opioid-dependent patients. RECENT FINDINGS: The recent publication of controlled trials confirms earlier clinical evidence of the efficacy of diamorphine (heroin) in the treatment of opioid dependence. Findings show not only efficacy with respect to improvement of health, reduction of illicit drug use, reduction of criminality and stabilization of social conditions, but also cost effectiveness in the treatment of chronic treatment-resistant heroin addicts. SUMMARY: Agonist maintenance treatment has become the first-line treatment for chronic opioid dependence. High-quality studies demonstrate the effectiveness of a growing number of different agonist maintenance treatments for opioid dependence such as methadone and buprenorphine. In addition, there is new evidence for the effectiveness of other agonists, mainly slow-release morphine, intravenous and inhalable diamorphine and possibly oral diamorphine. Maintenance treatment with intravenous or inhalable diamorphine should be implemented into the healthcare system to treat a group of severely dependent treatment-resistant patients. Furthermore, the opioid-dependent patients not under treatment need to be engaged in maintenance treatments through other harm reduction measures. Agonist maintenance treatment is very effective in stabilizing the health condition and social situation, while also reducing harm, thereby increasing life expectancy and quality of life.

Buprenorphine↗
PubMed2000

Intrafamilial clustering of Helicobacter pylori infection in Saudi Arabia.

AIM: To study the pattern of Helicobacter pylori infection among family members in the Saudi population. METHODS: A cross-sectional, population-based, seroepidemiological study of family members was undertaken in a Saudi population using saliva H pylori immunoglobulin (Ig) G antibodies (Helisal kit). RESULTS: A total of 42 families comprising 271 children and 84 parents were studied (355 subjects; mean age 23 years, SD 19 years) The overall frequencies of H pylori IgG antibodies in mothers, fathers and children were 67%, 64% and 23%, respectively. There was no significant difference in the infection rate between mothers and fathers, or between boys and girls. The infection rate among children increased when one or both parents were seropositive, and the infection rate among parents was proportionally related to the number of infected children per family. The frequency of H pylori antibodies was significantly higher in spouses of seropositive parents than in spouses of seronegative parents (45% compared with 19.2%). CONCLUSIONS: These data confirm that the intrafamilial clustering of H pylori infection in Saudi Arabia occurs in a similar pattern to that described in the developed countries, and that living conditions and social conditions lead to person to person transmission of H pylori infection.

Adolescent↗
PubMed1998

Listening to migrant voices: focus groups on health issues in south Georgia.

This qualitative study utilized focus groups to invite Latino migrant farm workers to express ideas about their health and service needs. Four focus groups composed of Latino men and women were conducted on four different evenings in the same county. Three themes emerged: health care issues, living and working conditions, and social and community issues. Specific needs of the community were also identified by the participants. For the first time, migrant farm workers in Georgia had the opportunity to lend their own voice regarding their concerns and ideas about health and social conditions. The findings from this study are congruent with other studies and provide the basis for developing interventions to enhance the health of migrant farm workers. In addition, the findings have implications for community health nursing and the proposed Vision of 2010: Healthy People in Healthy Communities, whose goals include increased years of healthy life and the elimination of health disparities.

Adolescent↗
PubMed1984

Hemoglobin values in adult women of various occupational groups in the community.

In 1966 and 1971, the authors studied hemoglobin values of about 2,000 women of 10 different occupational groups and different social classes in the same district. The mean values of hemoglobin and serum iron were highest in nursing students followed by urban housewives and nutritionists and lowest in 3 groups of farm wives and shoe factory laborers. The difference in the mean values of hemoglobin observed among occupational groups was in principle assumed to be due to the difference of frequency in levels of 11-12 g/dl. Hemoglobin levels between 1966 and 1971 tended to improve as a whole and the differences among occupational groups have been reduced. In this study, some kinds of social conditions as well as some physiological factors related to hemoglobin values were investigated. In the same occupational group, unmarried women had a higher level of hemoglobin than married women. Further, married women with infants showed a relatively lower level than those with no infants. This suggests that hemoglobin values of female workers may be significantly influenced not only by work conditions but also by social conditions including family circumstances.

Adult↗
PubMed2003

[Risk factors for overweight in children from Southern Brazil].

Risk factors for overweight were investigated in a cross-sectional survey of children aged 12-59 months in the Southern Brazilian city of Porto Alegre (n = 2,660). Odds ratios (OR) for overweight, defined by weight/height > 2 z-scores of the NCHS standards, were estimated for socioeconomic and demographic conditions, social environment, and childhood health events. Prevalence of overweight was 6.5%. In the multivariate model, the odds of overweight were positively associated with maternal education (schooling > 12 years, OR = 2.36; 95%CI: 1.21-4.60; 9-11 years, OR = 2.07; 95%CI: 1.16-3.70) and family income per capita > 2 times the minimum wage (OR = 1.86; 95%CI: 1.13-3.08) and negatively associated with maternal work (OR = 0.72; 95%CI: 0.52-0.99). Odds were higher for children born large-for-gestational-age (OR = 2.29; 95%CI: 1.36-3.85) and lower for children born small (OR = 0.57; 95%CI: 0.33-0.99), as compared to those born with adequate birth weight for gestational age. Paternal schooling, parental occupation, and maternal age at the child's birth were associated with overweight in the unadjusted model only. Programs are needed to prevent overweight during childhood, with special attention to families and children at increased risk.

Body Weight↗
PubMed2005

[Validation of food security and social support scales in an Afro-Colombian community: application on a prevalence study of nutritional status in children aged 6 to 18 months].

We conducted a cross-sectional study on 193 mothers of children 6 to 18 months of age in an African-Colombian community, with the objectives: (1) to adapt and validate the Community Childhood Hunger Identification Project scale, the DUKE-UNC-11 social support scale, and the Quebec Longitudinal Study of Child Development (QLSCD) partner support scale, and (2) to identify any existent relationship between nutritional status in infancy and both food insecurity and social support. We determined construct validity using factor analysis and theoretical models-based non-parametric correlations. Length-for-age and weight-for-length Z-results were calculated. Factor analyses reduced the hunger scale to one factor, the DUKE-UNC-11 scale to two factors, and the QLSCD scale to one factor. The Cronbach's alpha test ranged between 0.70 and 0.90. Both food insecurity and social support scales were correlated with mother's social conditions, and social support was positively associated with social networks and mother's self-perceived health status. Food insecurity, emotional-social support, and partner's negative support were associated with lower height-to-age and therefore a higher ratio of chronic malnutrition. The study supports the appropriateness of the instruments to measure the expressed concepts.

Colombia↗
PubMed1990

[Self-medication and social-political conditions--the situation in the GDR].

Self-medication is determined by social policy decisions and controlled by the drug law in order to ensure a justifiable proportion of risk and benefit for the application of drugs licensed for self-medication. Special emphasis is put on the situation and the self-medication market in the GDR.

Germany, East↗
PubMed2005

Growth trajectories are influenced by breast-feeding and infant health in an afro-colombian community.

We conducted a longitudinal study among an Afro-Colombian population to investigate the influence of feeding practices and child morbidity on linear and ponderal growth during infancy. We enrolled 133 children at 5-7 mo and followed them until 18 mo. Repeated anthropometric measures were taken every 2-3 mo, with monthly interviews on feeding practices and daily self-reports on morbid conditions by the mothers of the infants. Mothers' social conditions and infants' fixed variables (gender and gestational age at birth) were measured at baseline. Growth starting points and trajectories were modeled via Hierarchical Linear Models (HLM). Children started with a mean length of 64.8 cm (95% CI: 59.8-69.7) and a mean weight of 7.68 kg (95% CI: 5.37-9.9), and gained length at a rate of 1.13-1.70 cm/mo, and weight at 66.5-319 g/mo. Breast-feeding, defined as receiving breast milk at any time within a 2-3-mo interval, was positively related to length gain (regression coefficient = 0.27 cm/mo; P = 0.04), after adjusting for social conditions and food consumption. Among mothers with low levels of education, breast-feeding had a positive effect on weight gain (regression coefficient = 0.30 kg/mo; P = 0.04); among nonbreast-fed infants, complementary food diversity generated a positive effect on weight (regression coefficient = 0.14 kg/mo; P = 0.03). Mean differences in length were related to the total proportion of healthy time (regression coefficient = 3.1; P = 0.02), whereas weight-gain rates were negatively associated with changes during illness (regression coefficient = -0.70; P = 0.04 for fever). No association was found between diarrhea episodes and infant growth. Our study confirms that breast-feeding after 6 mo of life is important for nutrition and health, likely by mitigating the negative effects of poor social conditions and diarrhea on infant growth.

Black People↗
PubMedDate not supplied

Effects of social housing condition on chemotherapeutic efficacy in a Shionogi carcinoma (SC115) mouse tumor model: influences of temporal factors, tumor size, and tumor growth rate.

OBJECTIVE: The objective of this study was to investigate 1) whether social housing condition, tumor size, and tumor growth rate alter responses to chemotherapy and 2) whether the timing of tumor cell injection or chemotherapy initiation (relative to housing condition formation) influences tumor growth rate or the efficacy of chemotherapy. METHODS: Mice were reared individually (I) or in groups (G). In experiment 1, mice were rehoused (IG or GI) or left in group housing (GG) immediately after tumor cell injection. In experiment 2, housing conditions (II, IG, GG, or GI) were formed when tumors weighed 1 g. Chemotherapy (adriamycin 4 mg/kg and cyclophosphamide 61.5 mg/kg IP) and exposure to acute novelty stress (15 min/d, 5 d/wk) were initiated 1 day after housing condition formation. RESULTS: If chemotherapy was initiated when the tumor burden was undetectable (experiment 1), housing condition did not alter tumor response to chemotherapy, although IG mice lost the most weight and overall had the lowest probability of survival. If chemotherapy was initiated when tumors weighed 1 g (experiment 2), both tumor and host responses to chemotherapy were poorest for IG mice. Timing of tumor cell injection relative to housing condition formation also differentially influenced the rate of tumor growth in mice treated with the drug vehicle; in experiment 1, tumor growth rate was faster in GI and GG mice than in IG mice, whereas in experiment 2, the rate of tumor growth was faster in II mice than in GG and IG mice. CONCLUSIONS: Altering the temporal relationships among social housing condition formation, tumor cell injection, and chemotherapy initiation differentially influences the rate of tumor growth and the efficacy of chemotherapy. Effects of housing condition are independent of tumor growth rate at chemotherapy initiation and, in terms of host responses, independent of tumor burden.

Animals↗
PubMed1978

The effects of life crisis on psychological adjustment.

In this survey study the question was asked how "life crisis," social conditions, and ratings of quality of life are related to psychological adjustment. The survey included 454 residents, and data were collected on five social conditions: income, education, age, marital status, and religious participation; four ratings of life quality: family, personal life, income, and overall quality of life; the number of recent changes in the lives of the respondents; and two indicators of psychological adjustment. These data were analyzed with multivariate analyses of variance and stepwise regression. Life crisis was associated directly with psychological adjustment. Social conditions and life quality ratings also had significant effects. People with high life-crisis scores reported more psychological distress, and poor social conditions appeared to further exacerbate their adjustment problems. Regardless of the magnitude of the crisis, quality of life ratings had sizable effects on reports of psychological adjustment.

Adaptation, Psychological↗