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PubMed1988

Isolation, tactile startle and resting blood pressure in Long-Evans rats.

The effect of social isolation, consisting of individual housing in the vivarium under standard conditions and imposed on male rats older than 90 days, was assessed on tactile startle reactivity, nociception, resting heart rate and arterial blood pressure, and on intercorrelations among these variables. Tactile startle was affected by stimulus intensity, repeated trials and time of testing relative to the light/dark cycle, but not by social isolation from 1 to 29 days. Hot-plate latency was not affected by individual housing from 12 to 43 days. Blood pressure and heart rate were negatively correlated with isolation from 9 to 58 days, showing a significant decline over increasing days of isolation. Although not affected directly by isolation, tactile startle was affected secondarily by differences in blood pressure produced by individual housing. Rats with lower resting pressures responded to low-intensity startle stimuli that were not effective in rats with higher pressures, indicating a threshold difference and suggesting the hypothesis that blood pressure acts to modulate sensory reactivity.

Animals↗

PubMed2006

Bereavement after caregiving or unexpected death: effects on elderly spouses.

Responses to bereavement have been shown to vary depending on whether death is expected or unexpected, and on the nature of family caregiving experiences, but little previous research has examined these factors simultaneously. To address these issues, we utilized prospective data on bereavement from 193 participants in the Changing Lives of Older Couples (CLOC) study, who were assessed both before their loss and at six and 18 months after the death. Participants who experienced either unexpected loss, or expected loss without caregiving, with low-stress caregiving, or with high-stress caregiving completed measures of psychological, social, and health functioning on each occasion. Results showed that unexpected death was associated with marked increases in depression, while the nature of caregiving did not affect the trajectory of any of the psychological well-being measures. All groups except highly stressed caregivers showed improvements in social activity and support after bereavement, suggesting that highly stressed caregivers may be at an increased risk for social isolation during bereavement. Thus experiencing an unexpected death may put bereaved spouses at risk for depression, while high-stress caregiving may lead to problems with social isolation.

Adaptation, Psychological↗

PubMed1991

Peer relationships and adjustment in children with cancer.

Evaluated the psychosocial adaptations of children with cancer (n = 24, ages 8-18) as compared with same classroom controls on indices of (a) peer- and self-perceptions of sociability, aggression, and social isolation; (b) overall popularity; (c) mutual friendships; (d) feelings of loneliness; and (e) self-concept in multiple domains. Although the peer report data showed that children with cancer had a social reputation as significantly more socially isolated, no significant differences were found for their popularity, number of mutual friends, loneliness, or self-worth. Findings suggest that children with cancer have a reputation as more socially isolated, but differences were not found on measures of acceptance by peers, self-concept, or loneliness.

Adolescent↗

PubMed2005

Effects of different opportunities for social interaction on the play fighting behavior in male and female golden hamsters (Mesocricetus auratus).

After social isolation, animals play significantly more than nonisolated animals. However, it is not always possible to affirm that the effect of the social isolation is due to the lack of play. Experimentally, selective privation has been used, such as allowing the animals to play during periods of the day. In the present study, two experiments were carried out to verify the possible differences in the play fighting behavior of golden hamsters that were allowed to have different daily periods of social interaction (10 min, 1 hr, or 2 hr). Through the statistical analysis, it was shown that males play more than females and that periods of up to 2 hr daily for interaction are insufficient to avoid the short-term effects of isolation. It is concluded that a period of daily social interaction greater than 2 hr is needed to offset the effects of social isolation in golden hamsters.

Animals↗

PubMed1997

Assessment of quality of life with the Nottingham Health Profile among patients with coronary heart disease.

The aim was to describe the quality of life of people suffering from coronary artery disease. The patients had been treated with medication (n = 80), percutaneous transluminal coronary angioplasty (n = 100) and coronary artery bypass surgery (n = 100). Of the 280 patients, 189 were men and 91 women. The patients who participated in this study were seriously ill, as nearly half of them had three or more stenosed coronary arteries. Male patients were most numerous in the bypass surgery group and female patients in the angioplasty group. The quality of life was evaluated using the Nottingham Health Profile (NHP) instrument relation to an age- and sex-matched general population, the background factors and the severity of the coronary disease. The NHP questionnaire consists of 38 statements on health problems, making up six dimensions of subjective health: physical mobility, pain, sleep, energy, emotional reactions and social isolation. The health-related quality of life of coronary patients before the invasive procedures was significantly poorer on all the six dimensions than the quality of life in an age- and sex-matched general population. The most obvious differences were seen on the following dimensions: energy, pain, emotional reactions, sleep and physical mobility. The smallest differences occurred in social isolation. Both males and females had the lowest value for energy and social isolation in the youngest age group (35-54 years). The index values of emotional reactions in the two youngest groups were significantly higher among females than males, which reflects poor quality of life. The women in the age group of 35-54 years found the manifestation of a serious disease extremely hard to face. Our findings clearly suggest that while choosing the mode of treatment, the patient's quality of life should be considered along with the clinical severity of the disease, especially in the case of young women. From the societal and social points of view, the patient's symptoms and quality of life are even more important than the objective medical outcome. In clinical decision-making, the goal is to integrate the results of health-related quality of life assessments with clinical decisions, and this underlines the need to evaluate whether the treatment given is congruent with the patient's quality of life. On the basis of the present findings, the NHP instrument seems to be applicable to quality of life measurements among coronary patients. It does not, however, necessarily give an accurate and profound view of an individual's overall quality of life.

Aged↗

PubMed2002

Chronic sorrow in the HIV-positive patient: issues of race, gender, and social support.

This study used Olshansky's (1962) concept of chronic sorrow to examine social support needs of 21 human immunodeficiency virus (HIV)-positive men and women in a southern U.S. city. The methods of inquiry consisted of narrative interviews and a quantitative assessment of depression (the Center of Epidemiological Studies on Depression [CES-D] Scale). This combined approach indicated that chronic sorrow in HIV-positive persons is related to illness, fear of death, poverty, and social isolation, especially for women with children. More than half of the subjects scored as depressed, with African American women scoring significantly higher than Caucasian men or women. Social isolation often resulted from the effects of stigma, as framed in Erving Goffman's theory of discredited identity. The women were likely to be stigmatized because of their association with "dirty sex," contagion, and moral threat in heterosexual communities. Most of the men had been protected from the worst effects of stigma because of their ties to the gay community and associated health networks. Based on these preliminary findings, stigma should be considered a marker of chronic depression in the HIV-positive, and support services should take account of the stigmatizing contexts of HIV-positive persons.

Adult↗

PubMed1996

Activity of "seroquel" (ICI 204,636) in animal models for atypical properties of antipsychotics: a comparison with clozapine.

The pharmacologic treatment of schizophrenia still suffers from two major problems: (1) most antipsychotic drugs still induce severe neurologic (extrapyramidal) side effects; (2) few antipsychotic drugs are effective in treating the negative symptoms of schizophrenia. In the present study, we have evaluated the effects of ICI 204,636 in the rat paw test and the amphetamine-induced social isolation in monkeys and compared them with the effects of clozapine. The paw test has been shown to be a valid model for differentiating classic and atypical neuroleptic drugs. The monkey social isolation model seems to represent one of the few animal models with validity for the negative symptoms of schizophrenia. The results show that both ICI 204,636 and clozapine had the profile of an atypical antipsychotic in the paw test, suggesting a reduced propensity to induce extrapyramidal side effects in humans. Likewise, ICI 204,636 and clozapine were found to prevent the amphetamine-induced social isolation in monkeys, suggesting a good therapeutic effect mitigating the negative symptoms in schizophrenia. Overall, the data suggest that ICI 204,636 may represent a new and interesting antipsychotic drug, closely resembling clozapine.

Animals↗

PubMed2004

Employment status, social ties, and caregivers' mental health.

The purpose of this study of mid-life and older women was to assess the relation between informal care provision and depressive symptoms, taking into account concurrent demands on women's time (including multiple caregiving roles and employment outside the home) as well as participants' access to potentially supportive social ties. This cross-sectional study included women ages 46-71, free from major disease, who provided complete health and social information in the 1992 Nurses' Health Study follow-up survey (n = 61,383). In logistic regression models predicting depressive symptoms, we examined the interaction between employment outside the home and informal care provision for a disabled or ill spouse or parent. We also investigated level of social ties, measured with the Berkman-Syme Social Network Index, as a potential modifier of the association between informal care provision and depressive symptoms. In all analyses, higher weekly time commitment to informal care for a spouse or parent was associated with increased risk of depressive symptoms. This relationship persisted whether women were not employed outside the home, were employed full-time, or were employed part-time. Higher weekly time commitment to informal care provision was associated with increased risk of depressive symptoms whether women were socially integrated or socially isolated. However, both informal care provision and social ties were potent independent correlates of depressive symptoms. Therefore, women who reported high spousal care time commitment and few social ties experienced a dramatic elevation in depressive symptoms, compared to women with no spousal care responsibilities and many social ties (OR for depressive symptoms=11.8; 95% CI 4.8, 28.9). We observed the same pattern among socially isolated women who cared for their parent(s) many hours per week, but the association was not as strong (OR for depressive symptoms=6.5; 95% CI 3.4, 12.7). In this cross-sectional study, employment status did not seem to confer additional mental health risk or benefit to informal caregivers, while access to extensive social ties was associated with more favorable caregiver health outcomes.

Adult↗

PubMedDate not supplied

Nursing postvention for spousal survivors of suicide.

There is a scarcity of information available with respect to postbereavement outcomes for survivors of the suicide of a loved one. Few studies have focused on postvention therapies for the bereaved, particularly the bereaved survivors of suicide. The major aim of this study as to compare the effects of two theoretically derived nursing postventions, Bereavement Group Postvention (BGP) and Social Group Postvention (SGP), among the widowed whose spouses died of suicide. The findings suggest that both groups experienced an overall reduction in depression and distress. Although participants in the SGP generally showed significant improvement in social adjustment, they tended to be less well adjusted with respect to their parental roles at the end of the 8-week postvention sessions. Comparison of the psychoemotional correlates of grief varied such that there were no significant differences between the postvention groups for social isolation, loss of control, somatization, or death anxiety. The BGP participants experienced significantly reduced levels of anger/hostility and guilt; however, feelings of anger/hostility actually increased for those receiving the SGP. There was a significant reduction in feelings of despair, rumination, and depersonalization for both groups. Although social isolation was not significantly reduced for participants in either group, those receiving the BGP tended to experience a reduction in social isolation and those receiving the SGP showed no changes.

Bereavement↗

PubMed2005

Adolescent motherhood and postpartum depression.

Adolescent mothers undergo unique personal and social challenges that may contribute to postpartum functioning. In this exploratory investigation completed within a risk and resilience framework, 149 adolescent mothers, ages 15 to 19, who participated in school-based teen parents' programs, completed measures of parental stress (social isolation and role restriction), maternal competence, weight/shape concerns, and depression. The sample was quite diverse, and no ethnic differences in base rate levels of the variables were detected. Regression analyses indicated that social isolation, maternal competence, and weight/shape concerns predicted unique variance associated with depression level. The findings are discussed in light of future work and the continued need to inform prevention and treatment programs for young mothers.

Adolescent↗

PubMed1999

Permissive role of brain allopregnanolone content in the regulation of pentobarbital-induced righting reflex loss.

Allopregnanolone [3alpha-hydroxy-5alpha-pregnan-20-one] (ALLO), a potent neurosteroid that positively modulates gamma-aminobutyric acid (GABA) action at various GABA(A) receptor subtypes is synthesized in nanomolar concentrations and stored non uniformly in various brain structures of mammals. We have measured brain ALLO content and its precursors by negative ion chemical ionization-mass-spectrometry after purification and separation of the different steroids with HPLC and gas chromatography. Our procedure measures steroids in the femtomolar range with structural information and unsurpassed selectivity. We were able to establish an association between the decrease in content of ALLO in mouse brain cortex elicited by either long-lasting social isolation or by the administration of 17beta-17 [bis (1-methylethyl) amino carbonyl] androstane-3,5-dilene-3-carboxylic acid (SKF 105111). an inhibitor of Types I and II 5alpha reductases, and the shortening of the righting reflex loss elicited by pentobarbital (PBT). SKF 105111 added to cortical brain slices in concentrations up to 10(-5) M failed per se to alter GABAergic currents or their potentiation by PTB recorded from pyramidal neurons. Fluoxetine (1.45 or 2.9 micromol/kg i.p.) doses that fail to change the PTB-induced loss of righting reflex and the level of brain ALLO in group-housed mice normalized both parameters in socially-isolated mice. In addition, we could detect both fluoxetine actions in socially isolated mice pretreated with doses of p-chlorophenylalanine (1.2 mmol/kg i.p. at 72, 48, and 24 h) that substantially inhibit brain serotonin 5HT synthesis as shown by an 80% drop of brain 5HT content. These studies for the first time have provided evidence suggesting that the endogenous cortical stores of ALLO physiologically upregulate GABAergic tone and by such a mechanism play a permissive or facilitatory role on the PTB-induced loss of the righting reflex. In the absence of such a permissive physiological influence by endogenous ALLO, the righting reflex inhibition by PTB is down regulated.

5-alpha Reductase Inhibitors↗

PubMed1994

Providing psychological support for patients after critical illness.

The majority of patients have little or no memory of their stay in ICU or remember only pain, suctioning or lack of sleep. Dreams and nightmares while in the intensive care unit (ICU) and after discharge home have also been reported. The few studies investigating the longer-term psychological problems of critical illness point to a picture of social isolation with patients avoiding company and showing less affection to their partners. Our own experience, running a special outpatient clinic and following up patients by post, showed a picture of depression, anxiety, irritability and social isolation. This led to the setting up of an ICU staff-led support group for patients recovering from critical illness. This article outlines the possible problems and pitfalls of setting up and running a support group for patients recovering from critical illness. The type of patients suitable to attend such a group is examined. Two case histories give an illustration of the type of problems ICU patients experience during their recovery and how an informal support group can help. In addition to possible benefits to the patients, support groups can also give ICU staff a chance to understand the process of recovery from critical illness and to examine the effects on patients of their own practice. However, they must also have enough insight to know when a patient needs professional help; for example, a patient displaying symptoms of post-traumatic stress disorder should be referred, with their agreement, to a clinical psychologist.

Anxiety↗

PubMed1983

Living with an amputation: the patient.

The findings of a study of 134 single-leg amputees are presented, comparing those who had recently lost a leg with others who had worn prostheses for 1-2 years. Social isolation, psychological risk and felt need were the principal indicators of level of adjustment selected. On none of these measures did experienced prosthesis-wearers show any appreciable improvement over amputees in the early stages of prosthetic rehabilitation. Severe social isolation was present in both groups, and seemed to inhibit the declaration of needs. The persistence of peripheral vascular disease was predictive of poor rehabilitation outcome.

Activities of Daily Living↗

PubMed2003

The effect of isolation rearing on volitional ethanol consumption and central CCK/dopamine systems in Fawn-Hooded rats.

Numerous studies have demonstrated that socially isolating rats (from weaning) produces a sustained anxious phenotype and an enhanced response to psychostimulant drugs such as amphetamine and cocaine. In addition, isolation rearing has been shown to induce significant changes in the mesolimbic dopamine system. These data indicate that isolation rearing not only induces an anxiogenic phenotype but also induces neurochemical changes in reward nuclei of the brain, which is correlated with an enhanced response to psychostimulants. For these reasons, the effect of isolation rearing on volitional ethanol consumption was examined in Fawn-Hooded (FH) rats and correlated with neurochemical changes in central dopamine and cholecystokinin systems. Social isolation from weaning produced an anxiogenic phenotype as measured by a decreased time spent on the open arms of an elevated plus-maze. Interestingly, isolation-rearing induced a greater proportion of FH rats to acquire preference for ethanol while having no effect on the amount of ethanol consumed by alcohol-preferring rats. In addition, isolation rearing induced a number of changes in central CCK/dopamine systems.

Alcohol Drinking↗

PubMed2006

Social networks, social support, and survival after breast cancer diagnosis.

PURPOSE: We prospectively examined social ties and survival after breast cancer diagnosis. PATIENTS AND METHODS: Participants included 2,835 women from the Nurses' Health Study who were diagnosed with stages 1 to 4 breast cancer between 1992 and 2002. Of these women, 224 deaths (107 of these related to breast cancer) accrued to the year 2004. Social networks were assessed in 1992, 1996, and 2000 with the Berkman-Syme Social Networks Index. Social support was assessed in 1992 and 2000 as the presence and availability of a confidant. Cox proportional hazards models were used in prospective analyses of social networks and support, both before and following diagnosis, and subsequent survival. RESULTS: In multivariate-adjusted analyses, women who were socially isolated before diagnosis had a subsequent 66% increased risk of all-cause mortality (HR = 1.66; 95% CI, 1.04 to 2.65) and a two-fold increased risk of breast cancer mortality (HR = 2.14; 95% CI, 1.11 to 4.12) compared with women who were socially integrated. Women without close relatives (HR = 2.65; 95% CI, 1.03 to 6.82), friends (HR = 4.06; 95% CI, 1.40 to 11.75), or living children (HR = 5.62; 95% CI, 1.20 to 26.46) had elevated risks of breast cancer mortality and of all-cause mortality compared with those with the most social ties. Neither participation in religious or community activities nor having a confidant was related to outcomes. Effect estimates were similar in analyses of postdiagnosis networks. CONCLUSION: Socially isolated women had an elevated risk of mortality after a diagnosis of breast cancer, likely because of a lack of access to care, specifically beneficial caregiving from friends, relatives, and adult children.

Adult↗

PubMed2006

In the minority: black physicians in residency and their experiences.

OBJECTIVE: To describe black residents' perceptions of the impact of race on medical training. MATERIALS AND METHODS: Open-ended interviews were conducted of black physicians in postgraduate year 22 who had graduated from U.S. medical schools and were enrolled in residency programs at one medical school. Using Grounded Theory tenets of qualitative research, data was culled for common themes through repeated readings; later, participants commented on themes from earlier interviews. RESULTS: Of 19 participants 10 were male, distributed evenly among medical and surgical fields. Four major themes emerged from the narratives: discrimination, differing expectations, social isolation and consequences. Participants' sense of being a highly visible minority permeated each theme. Overt discrimination was rare. Participants perceived blacks to be punished more harshly for the same transgression and expected to perform at lower levels than white counterparts. Participants' suspicion of racism as a motivation for individual and institutional behaviors was tempered by self-doubt. Social isolation from participants' white colleagues contrasted with connections experienced with black physicians, support staff and patients, and participants strongly desired black mentors. Consequences of these experiences varied greatly. CONCLUSIONS: Black physicians face complex social and emotional challenges during postgraduate training. Creating supportive networks and raising awareness of these issues may improve training experiences for black physicians.

Adaptation, Psychological↗

PubMedDate not supplied

[Life events, quality of life and social support prior to acute cerebral vascular disease, as predictive factors of the quality of life and functional state following stroke].

INTRODUCTION: The repercussion of stroke on quality of life has been evaluated but not the possible relation between the quality of life before and months after an acute stroke. OBJECTIVE: To study the possible relation between quality of life, social support, stressful life events prior to the stroke and quality of life, social support and functional state months after. PATIENTS AND METHODS: A prospective study was made of 34 patients (71.7 +/- 8 years; 19 (56%) men; 15 (44%) women with stroke, by means of two evaluations: personal interview within the first 36 hours (quality of life--Nothingham health profile (NHP)-, perception of social support and stressful life events--Holmes and Rake inventory-) and an interview over the phone 16.5 +/- 5.3 months after the stroke (NHP, perception of social support and functional state--Rankin scale-). RESULTS: Following the stroke there was deterioration in perception of social support (19.8 +/- 3 vs 12.5 +/- 8; p = 0.000) and in the degree of social isolation of the NHP (9.4 +/- 20 vs 21.1 +/- 30; p = 0.03). The only relation found was between the following variables: pain at the first evaluation and pain (r = 0.45; p = 0.007) at the second evaluation; mobility at the first evaluation and emotional state (r = 0.39; p = 0.029) and social support (r = 0.37; p = 0.027) at the second evaluation; sleepiness at the first evaluation and energy (r = 0.55; p = 0.0006), pain (r = 0.39; p = 0.022), emotional state (r = 0.35; p = 0.038), mobility (r = 0.34, p = 0.048) and sleepiness (r = 0.51; p = 0.001) at the second evaluation. CONCLUSION: Our results indicate that there is little relationship between the previous state and that following stroke, and that the deterioration in perception of support and social isolation is due to the stroke itself.

Affect↗

PubMed1999

Isolation changes the incentive value of sucrose and social behaviour in juvenile and adult rats.

The present study was undertaken to assess the motivational aspects of social behaviour in juvenile and adult rats using the conditioned place preference (CPP) test and anticipatory behaviour for social contact. In addition, the consequences of social isolation during different periods of age on the motivational properties of sucrose-drinking and adult social behaviour were studied. Social play and adult social contact could be used as incentives for place preference conditioning and for inducing conditioned hyperactivity (anticipation) in rats. Both social activities have motivational properties for individually housed rats, whereas group-housing dramatically reduced the motivational aspects of adult social contact. In contrast, sucrose-drinking appears to have motivational aspects independent of the housing condition. Adult social behaviour could not induce a CPP in juvenile isolated rats, suggesting that juvenile isolation during 4 5 weeks reduced the motivational aspects of adult social contact. It seems likely that no CPP was established as a result of the reduced level of social behaviour during the conditioning sessions. Additionally, juvenile isolation during 4-5 weeks appeared to also decrease the motivational properties of sucrose-drinking in maturity, because the intensity of anticipation in response to sucrose was significantly suppressed. Thus, the data suggest that juvenile isolation during 4-5 weeks decreases the motivational properties of both social contact and sucrose-drinking in later life.

Aging↗