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PubMed1988

Drug addiction and parental rearing style: a controlled study.

The parental rearing practices of 43 multiple drug addicts and 111 control subjects were compared using the EMBU, a psychometrically reliable instrument to assess parental attitudes and rearing behavior. Significant differences between addicts and controls were found on three dimensions: Rejection, Lack of Emotional Warmth, and Overprotection. The results were most striking for paternal rejection and lack of paternal emotional warmth.

Adult↗
PubMed1982

Meiosis in Sciara coprophila: structure of the spindle and chromosome behavior during the first meiotic division.

Light microscope descriptions of meiosis I in males of the fungus gnat Sciara coprophila suggested the presence of a monopolar spindle in which maternal and limited chromosomes move poleward while paternal chromosomes "back away" from the pole. The ultrastructural analysis reported here, based upon serial sections of cells in different stages of meiosis I, shows that the spindle is indeed monopolar with a distinctive differentiation, the polar complex, at one pole. This complex is the focus of a conical radiation of spindle microtubules. Kinetochores of paternal chromosomes face the complex and microtubules associated with these kinetochores run toward the complex. No kinetochore microtubules were discovered on maternal or limited chromosomes. When the position of paternal, maternal, and limited chromosomes is compared at various stages, it is found that limited chromosomes always remain near the polar complex, paternal chromosomes remain far from it and only maternal chromosomes move closer to the pole. Apparently, chromosome segregation does not depend on paternal chromosomes "backing away" from the pole, and the required movement of maternal chromosomes take place in the absence of kinetochore microtubules. In the prophase nucleus, limited and maternal chromosomes are already spatially separate from paternal chromosomes before the spindle forms. Thus, the monopolar spindle functions only to increase the distance between already segregated sets of chromosomes. An extensive system of microtubule-associated membranes outlines the spindle; the possibility that maternal chromosome movement is somehow related to the presence of this membrane is discussed.

Animals↗
PubMed2000

Disruption of the mouse Necdin gene results in hypothalamic and behavioral alterations reminiscent of the human Prader-Willi syndrome.

Prader-Willi syndrome (PWS) is a complex neurogenetic disorder with considerable clinical variability that is thought in large part to be the result of a hypothalamic defect. PWS results from the absence of paternal expression of imprinted genes localized in the 15q11-q13 region; however, none of the characterized genes has so far been shown to be involved in the etiology of PWS. Here, we provide a detailed investigation of a mouse model deficient for NECDIN: Linked to the mutation, a neonatal lethality of variable penetrance is observed. Viable NECDIN: mutants show a reduction in both oxytocin-producing and luteinizing hormone-releasing hormone (LHRH)-producing neurons in hypothalamus. This represents the first evidence of a hypothalamic deficiency in a mouse model of PWS. NECDIN:-deficient mice also display increased skin scraping activity in the open field test and improved spatial learning and memory in the Morris water maze. The latter features are reminiscent of the skin picking and improved spatial memory that are characteristics of the PWS phenotype. These striking parallels in hypothalamic structure, emotional and cognitive-related behaviors strongly suggest that NECDIN is responsible for at least a subset of the multiple clinical manifestations of PWS.

Animals↗
PubMed2005

Behavioral problems in children with Down syndrome.

Forty consecutive children with Down syndrome were included as the Study Group (SG). The Control Group (CG) consisted of forty children attending the immunization clinic in pediatric OPD. Behavior Screening Questionnaire (BSQ) was used to screen the study groups as well as their siblings and control group for behavioral problems. The assessment of parental attitudes was done on Attitude Screening Questionnaire which includes 2 separate questionnaire for mother and father. Twenty two children (55%) with Down's syndrome showed behavioral problems as compared to 5 (12.5%) in control group. Children with Down's syndrome showed behavioral problems related to all the spheres (feeding, socialization, toilet training and sleep) as compared to control group. Mothers showed highly indulgent attitude as related to feeding to nearly total neglect as related to socialization and toilet training whereas in Paternal Attitude Screening Questionnaire, there was total neglect in all the spheres as compared to control group. There is higher prevalence of psychiatric disorders in children with Down's syndrome and their siblings.

Adult↗
PubMed2006

Parent-child relationships as systems of support or risk for adolescent suicidality.

This study examined a process model of predicting adolescent suicidality. Adolescent emotional distress was hypothesized to mediate the relationship between parental behaviors and subsequent adolescent suicidality. The parental behaviors studied included parental warmth and parental hostility. A sample of 451 families from rural Iowa participated in this longitudinal study, which included both observational and self-report data. Models were tested with structural equation modeling. Adolescent emotional distress was found to be a mediating variable between paternal warmth and adolescent suicidality. Results indicated that maternal warmth predicted adolescent suicidality but not emotional distress. Parental hostility did not predict either latent variable. Clinical implications are provided.

Adolescent↗
PubMed2004

A study of firesetting and animal cruelty in children: family influences and adolescent outcomes.

OBJECTIVE: To investigate relationships among family risk factors, childhood firesetting and animal cruelty, and adolescent delinquency. METHOD: In 1990, mothers and children participating in a 10-year prospective study provided information about family risk factors and childhood problem behavior. Subsequent interviews with 86% of the sample in 1996 and 1998 and court record reviews in 2000 provided information about juvenile delinquency. RESULTS: Marital violence (odds ratio [OR] 2.4, 95% confidence interval [CI] = 1.1-5.4), paternal pet abuse (OR 2.4, CI = 1.0-5.6), and paternal drinking (r = 0.14) were related to firesetting, whereas exposure to marital violence (OR 2.3, CI = 1.0-5.1) and paternal (r = 0.19) and maternal harsh parenting (r = 0.14) were associated with animal cruelty. Regression analyses indicated that after controlling for conduct disorder, firesetters were 3.0 times (CI = 1.3-6.7) at risk of juvenile court referral and 3.3 times (CI = 1.4-7.6) at risk of arrest for a violent crime. Analysis of self-reports of delinquency replicated these results. Animal cruelty was related to self-reported violent crime (beta = 0.16). CONCLUSION: These findings indicate that family variables increase the likelihood of childhood firesetting and animal cruelty and that these behaviors are related to adolescent delinquency.

Animal Welfare↗
PubMed2005

On sexual behavior and sex-role reversal.

Sex is not about reproduction; sex is about (re-)combination of DNA. Sex, not reproduction, always involves physical contact between two individuals; to achieve this, strategies of sexual behavior evolved. Sexual behavior, therefore, did not evolve as part of a reproductive strategy, but evolved to enable exchange of genetic material. In multicellular organisms the situation is more complicated than in unicellular organisms, as it is impossible for each cell within a multicellular body to have sex with another cell. Hence, evolution selected a system in which the possibility to have sex was limited to only one cell-line: the germ cells. As a result, sex adopted the character of fertilization, and sex and reproduction became inseparably linked. Still, in some species, including humans, sexual behavior still exhibits features of its evolutionary past: in humans (like in bonobo's) most sexual activity and many sexual behavioral patterns have nothing to do with reproduction (masturbation, homosexual behavior, for example); in humans, sexual behavior also became associated with other strategic objectives, such as intensifying the pair bond, expression of love or power. Different genders - male and female - evolved, and each gender evolved typical gender-related sexual and reproductive strategies as well. In most multicellular species, these strategies became inextricably mixed, and sexual behavior increasingly more - and in most species even exclusively - 'served' the interests of reproduction: sexual behavior became more or less synonymous with reproductive behavior. In most species, the 'mix' of sexual and reproductive strategies evolved into typical gender-related patterns of behavior, that is, in typical 'sex-roles'. Often, males are bigger and more 'beautiful' (= more intensely ornamented) than females; males compete with each other for access to females; males court females, while females choose males ('female choice'). However, ecological circumstances may cause a reversal of sex-roles, resulting in a situation in which females are bigger and more intensely ornamented than males, females compete for access to males, females court males and only males invest in care for the young, provided they are relatively certain of their paternity. Also, as in the case of the spotted hyena, females may be highly virilized and be socially dominant. This 'sex-role reversal' is seen, e.g., when males are relatively rare due to high predation pressure, or when the process of reproduction is very risky for the same reason: then it is 'better' that males, with their plenty of sperm, are wasted, than females with their few, precious eggs. It can be argued, with women being the fair sex, exhibiting competitive behavior and with an actively displaying courtship, and with men investing heavily in their offspring, meanwhile taking all (cultural) kinds of measures to guarantee their paternity, that humans, too, exhibit some degree of sex-role reversal.

Animals↗
PubMedDate not supplied

Occupational commitments and paternal deprivation.

In the post-war era the husband-father role has been enlarged to encompass active participation in family life. However, occupational commitments may inhibit active involvement in family life, particularly in the middle classes where work has traditionally been defined as salient. This article reports on an investigation of the consequences of heavy work commitments for father role performance and child development. This investigation, using the case study method, focussed on hospital medicine and the early child-rearing stage of the family life cycle. It was found that fathers felt themselves to be shadowy figures in the background of their children's lives and that mothers experienced single-handed responsibility for child-rearing as burdensome. Children have little experience of a father's companionship, and discipline and work pressures may be transmitted to them. A few children exhibited behaviour difficulties. Suggestions for further study are made.

Attitude↗
PubMed2005

An integrative model of shared decision making in medical encounters.

OBJECTIVE: Given the fluidity with which the term shared decision making (SDM) is used in teaching, assessment and research, we conducted a focused and systematic review of articles that specifically address SDM to determine the range of conceptual definitions. METHODS: In April 2005, we ran a Pubmed (Medline) search to identify articles published through 31 December 2003 with the words shared decision making in the title or abstract. The search yielded 681 citations, 342 of which were about SDM in the context of physician-patient encounters and published in English. We read and reviewed the full text of all 342 articles, and got any non-redundant references to SDM, which yielded an additional 76 articles. RESULTS: Of the 418 articles examined, 161 (38.5%) had a conceptual definition of SDM. We identified 31 separate concepts used to explicate SDM, but only "patient values/preferences" (67.1%) and "options" (50.9%) appeared in more than half the 161 definitions. Relatively few articles explicitly recognized and integrated previous work. CONCLUSION: Our review reveals that there is no shared definition of SDM. We propose a definition that integrates the extant literature base and outlines essential elements that must be present for patients and providers to engage in the process of SDM. PRACTICE IMPLICATIONS: The integrative definition of SDM is intended to provide a useful foundation for describing and operationalizing SDM in further research.

Communication↗
PubMed2005

Restraint stress does not enhance the uranium-induced developmental and behavioral effects in the offspring of uranium-exposed male rats.

The influence of stress on postnatal development and behavior was assessed in the offspring of male rats exposed to uranium (U). Eight groups of adult animals received uranyl acetate dihydrate (UAD) in the drinking water at doses of 0, 10, 20 and 40 mg/kg/day during 3 months. One half of rats in each group were concurrently subjected to restraint stress during 2 h per day throughout the study. At the end of the experimental period, male rats were mated with untreated females (1:2). On gestation day 14, one half of pregnant rats were euthanized in order to evaluate maternal toxicity and gestational parameters. The remaining dams were allowed to deliver and wean their offspring. Pups were evaluated for physical development, neuromotor maturation, as well as for behavioral effects. Restraint significantly increased the gravid uterine weight at 40 mg/kg/day. However, no significant interactions between restraint and U could be established in the remaining parameters of maternal toxicity. In the offspring, no remarkable effects of U, restraint or their combination were noted on developmental landmarks, or in the passive avoidance and water maze test. It is concluded that at the current U doses, restraint stress did not enhance the few uranium-induced physical, neuromotor and behavioral changes in the offspring of UAD-exposed male rats.

Animals↗
PubMed1987

Association between behavioral and school problems and fatherhood in a national sample of adolescent youths.

The relation between fatherhood and behavioral and school problems was studied in a nationally representative sample of adolescent youths. Data were obtained from the National Longitudinal Survey of Work Experience of Youth (NLSY). Of the 6400 youths interviewed in 1980, 367 (5.7%) reported that they had fathered a child before the age of 19 years. This group was compared with 1000 non-fathers selected at random from the same data set. The groups differed by race and family socioeconomic characteristics. Academic, drug, and conduct problems were significantly more common among adolescent fathers than among non-fathers. Race and family income, and fatherhood status were independently related to various problem behaviors. These results confirm previous findings demonstrating a relation between delinquency and adolescent fatherhood.

Adolescent↗
PubMed1985

Risk factors for gestational trophoblastic disease in Italy.

Between June 1981 and March 1983, data were collected to assess risk factors for gestational trophoblastic disease in a case-control study of 100 women with trophoblastic tumors (17 partial hydatidiform moles, 63 complete moles, and 20 choriocarcinomas) and 200 age-matched controls admitted for normal deliveries to university or general hospitals in Lombardy, Northern Italy. Questions were asked about each patient's general life-style, and medical, obstetric, menstrual, contraceptive, and social history. The risk of trophoblastic disease increased with increasing paternal age: women whose husbands were aged 40-44 years and 45 years or more had a relative risk of 2.4 and 4.2, respectively, compared to women married to men aged under 40 years. This association was independent of maternal age. Cigarette smoking was associated with trophoblastic tumors (relative risk estimate for smokers vs. never smokers = 2.0, 95% confidence interval = 1.2-3.2), the risk being greater for women who smoked more cigarettes and for longer. The effect of cigarette smoking was not explained by any other identified potential distorting factor. A positive history of fertility problems or difficulties in conception and a personal or family history of gestational trophoblastic disease were more common among the cases. Past use of oral contraceptives was not related to the risk of trophoblastic tumors, but use of an intrauterine device was significantly more common among the cases. The findings give epidemiologic support to the evidence of an androgenetic role in the origin of hydatidiform mole; moreover, they provide new hypotheses on the risk factors for gestational trophoblastic disease in developed countries. Further exploration of these factors may lead to a more coherent body of evidence on the etiology of these diseases.

Adolescent↗
PubMed1981

Psychologic responses of incestuous daughters: emerging patterns.

Our review of the literature on the impact of paternal incest with the daughter showed several patterns of results. Past studies of girls soon after the termination of or exposure to incest suggest guilt, depression, behavior disorders, and occasionally hysterical "seizures" as possible reactions. Those exploring the long-term consequences point toward deficits in sexual functioning and sexual identity. A third group of studies, however, indicates that some victims of father-daughter incest exhibit no apparent psychopathology. The contribution of prevailing knowledge to current therapeutic practice is discussed.

Behavior↗