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At least 19 recordsLinked to original sources
PubMed1985

[Psychodynamic relevance of sibling relations].

Sibling relations, including the relations of both parents and children with their siblings, are of as great importance in assessing the normal or abnormal development of a child as in understanding family psychodynamics. Sibling interaction is one of the "universals" in a biography; it was even dealt with in mythology. Despite numerous studies, there is little conclusive evidence about the subjective and psychodynamic significance of birth order. Diagnostic and therapeutic assessments must be made with the particular case in mind, which also presupposes that investigators take into account resistance they themselves may have to the topic of siblings. The author discusses the points that can be of importance with regard to siblings.

Birth Order↗
PubMed1992

Contributions of sibling relations to the adaptation of youths with insulin-dependent diabetes mellitus.

Associations among sibling relations and the psychosocial and illness-specific adaptation of youths (N = 66) with insulin-dependent diabetes mellitus (IDDM) were examined. The findings suggest that sibling relations, especially sibling conflict, contribute an independent source of variance above and beyond that contributed by demographic characteristics, sibling constellation variables, and important dimensions of family relations in predicting the youths' adaptation. High family-life stress and high sibling status/power contributed unique variance in predicting internalizing behaviors, and male gender and sibling conflict contributed independently to externalizing problems. Sibling conflict also contributed unique variance to the youth's general self-esteem, along with social class and family cohesion, and to their adjustment to IDDM. Data suggest that parent-child dyads and sibling dyads represent interrelated and independent subsystems within the family, and that both subsystems may influence the psychosocial functioning of youths with IDDM.

Adaptation, Psychological↗
PubMedDate not supplied

[Significance of sibling relations in parental separation].

Sibling relationships ar a new field in empirical science, and existing data are rather sparse. An overview will be given about the diversity of sibling relationships. General research results will be reported briefly, and special emphasis will be put on the situation of siblings in families undergoing divorce. Starting with the situation of current research an their diverse results two major studies will be described more closely (Conger and Conger 1996; Schmidt-Denter and Beelmann 1995). Furthermore problems of research in the area of sibling relationships will be discussed. Implications of these research results for expert opinions in custody cases will be presented (Karle et al. 2000). A following case study will again demonstrate the complexity of this topic.

Adolescent↗
PubMed1989

Renal transplantation between living-related sibling pairs matched for zero-HLA haplotypes.

The functional survival rates of kidney grafts from zero-HLA haplotype-matched sibling pairs are similar to one-haplotype-matched pairs and superior to cadaver grafts. From January 1980 to March 1988, 318 primary renal transplants from sibling donors (151 matched for two, 130 for one, and 37 for zero HLA haplotypes), and 352 cadaver graft transplants were performed at the University of Minnesota. The renal graft survival rates at two years were 94%, 91%, and 94% for the 2, 1, and 0-haplotype pairs versus 75% for cadaver graft recipients (P less than 0.04). When analyzed across the different immunosuppression protocols the same trends held up, similar graft functional survivals for 1- and 0-haplotype-matched pairs both being superior to cadaver graft recipients. The graft functional survival rates at two years of recipients of 0-haplotype-matched sibling donor grafts (n = 37) was 94% versus 80% for recipients of cadaver donor grafts matched for greater than or equal to 4 HLA antigens. In addition, for recipients of 0-haplotype-matched grafts, hospital stay was shorter, fewer patients required dialysis posttransplant, and, despite a slightly higher incidence of rejection episodes (51% versus 40%, P = ns), the creatinine values one year posttransplant were significantly lower (1.5 mg/dl versus 1.9 mg/dl, P less than 0.02) than those of recipients of cadaver grafts matched for greater than or equal to 4 HLA antigens. These data support the use of cadaver grafts for patients not having a willing sibling donor, and the use of all willing sibling donors, whether or not they are a zero-haplotype match, for patients fortunate to have that family commitment.

Antilymphocyte Serum↗
PubMed1998

Clinical features of moyamoya disease in sibling relations under 15 years of age.

This study was undertaken to define the clinical features of moyamoya disease in sibling relations less than 15 years of age. We analysed five pairs of siblings (6 boys, 4 girls) with moyamoya disease from among 56 moyamoya patients less than 15 years of age. Of 56 paediatric patients with moyamoya disease, 5 were sibling pairs. At onset of the disease, all patients were under 10 years of age. Clinical manifestations in the proband and the affected sibling tended to present as transient ischaemic attacks; none of the 10 patients presented with intracranical haemorrhage. The probands were not always the older sibling, however, the time lapse between disease onset in the proband and his/her sibling was less than one year. Among the sibling pairs, there was no striking difference in disease staging based on angiographic findings. The incidence of sibling occurrence of moyamoya disease appears to be higher than previously assumed and the family of children with moyamoya disease should be cautioned that their other children have an increased risk of developing the illness.

Adolescent↗
PubMed2005

Osteopontin and related SIBLING glycoprotein genes are expressed by Sertoli cells during mouse testis development.

Matrix proteins play important roles in tissue morphogenesis. We have studied the expression of genes encoding the related SIBLING glycoproteins osteopontin (OPN), bone sialoprotein (BSP), and dentin matrix protein (DMP) during the development of male and female gonads during mouse embryogenesis. Opn mRNA was expressed specifically by Sertoli cells of the developing testis cords, in the mesonephric tubules of both sexes, and, transiently, in the Müllerian ducts of both sexes, as determined by whole-mount and section in situ hybridization. OPN protein was detected in the cytoplasm of Sertoli cells and luminal cells of the mesonephric tubules, with small amounts associated with the plasma membrane of germ cells. We found no defects in developing testes of Opn-/- mice using a range of cell type-specific markers, suggesting that other SIBLING proteins may function in testis development. Dmp and Bsp mRNA was also expressed in the developing testis cords, supporting the view that all three SIBLING proteins may contribute to testis differentiation.

Animals↗
PubMed1992

Cold Acclimation in Genetically Related (Sibling) Deciduous and Evergreen Peach (Prunus persica [L.] Batsch): I. Seasonal Changes in Cold Hardiness and Polypeptides of Bark and Xylem Tissues.

Seasonal patterns of proteins and of cold hardiness were characterized in bark and xylem tissues of genetically related (sibling) deciduous and evergreen peach (Prunus persica [L.] Batsch). In contrast with deciduous trees, which entered endodormancy and abscised leaves in the fall, evergreen trees retained their leaves and exhibited shoot elongation under favorable environmental conditions. A successive increase in the cold hardiness of bark and xylem was observed during the fall in both genotypes. This was followed by a subsequent decrease from midwinter to spring. Xylem tissue in both genotypes exhibited deep supercooling and a significant correlation (r = 0.99) between the midpoint of the low-temperature exotherm and the subzero temperature at which 50% injury occurred (assessed by electrolyte leakage) was noted. The maximum hardiness level attained in deciduous trees was more than twofold that of evergreens. Seasonal pattern of proteins from bark and xylem of the sibling genotypes was characterized by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Among other qualitative and quantitative changes, accumulation of a 19-kilodalton polypeptide in the bark of both genotypes was observed during fall followed by a decrease in spring. This polypeptide accumulated to higher levels in the deciduous peach compared with the evergreen. Additionally, a 16-kilodalton protein exhibited the same pattern in deciduous trees but not in the evergreen trees. Both the 19- and a 16-kilodalton bark proteins conform to the criteria of a bark storage protein. The relationship of seasonal changes in protein to cold hardiness and dormancy in these genetically related peach genotypes is discussed.

Journal Article↗
PubMedDate not supplied

[Sibling relations between individuation and attachment: attempt at a conceptualization].

Although sibling relationships can be considered as one of the most durable and intensive relationships, not much research in developmental psychology and family research has been done on this issue. The strong focus on parents, more specifically on mothers, stood in the way of adequate conceptualization and understanding of the function and contribution of siblings to individual development and family interaction. In this contribution a conceptualization of sibling relationships is presented. Siblings as objects of aggressive and sexual feelings as well as the function of siblings in the family system, for example, as parentification and negative identity is emphasized. In addition, the different qualities of sibling relationships, for example, envy, rivalry, similarity, and difference, are emphasized. The function of siblings as love objects is stressed, and the role of siblings as support as well as teaching object is illustrated. Finally, it is emphasized that, similar to relationships between parents and child, the quality of sibling relationships changed over time and leads, for example, to a detachment between sibling relationships during adolescence.

Adolescent↗
PubMed2002

[The quality of sibling relation who have experienced family transitions and those who have not].

In this study, similarities and differences in sibling relationships between children who have experienced family transitions and those who have not are examined. Comparisons are made between children who live in intact families, those whose parents have separated, and those who live in substitute care regarding the quality of their relationships with one of their siblings. More specifically, 4 dimensions describing the quality of sibling relationships are compared: Warmth/Closeness, Conflict, Relative Status/Power, and Rivalry (Furman & Buhrmester, 1985). The sample is made up of 3 groups of children (N = 158) aged between 8 and 12 years old: children living in intact families (n = 101), children who have experienced parental separation (n = 35), and children living in substitute care (n = 22). Results indicate differences on dimensions of Warmth/Closeness, Conflict, and Relative Status/Power. Different patterns of responses between the children who have experienced family transitions and those who have not are observed for the dimensions of Conflict and Power. The significant difference observed between the groups for the dimension of Warmth appears difficult to explain. Discussion of these results emphasizes the importance of the relationship between brothers and sisters experiencing family transition.

Child↗
PubMed1994

[Sibling relations: an introduction to the horizontal relation dynamics in a psychoanalytic "family" concept].

This position encompasses the idea that the family concept is represented by a vertical, complementary relationship between child and parents. For decades this position was hardly disputed. The sibling relationship was set apart, or more exactly fixed on a negative, psychopathological potential, in great contrast to daily life-experience and to the cultural value-system. This view point (and its persistant dominance) is illuminated against the background of multiple motivated, collective counterprocesses and deficient, intersubjective development theories. A new and clear change that has been taken place in the concept of the sibling relationship during the last decade is expounded and discussed here. Important conclusions for the development theory are submitted. The sibling relationship is, like the parent-child relationship, an elementary experience and a transferable behaviour-model. Significant psychodynamic processes in sibling relationships are hereby described and possible variant family-dynamics resulting from the interplay between the horizontal and vertical levels are outlined. The creation of sibling relationships during children's games, of imaginary siblings and fantasies of wishing for a sibling are shown. The relevance of the sibling-dynamics for development processes and for family-dynamic processes thus becomes apparent. Important implications for the clinical-psychotherapeutic domain reinforce the demand for including the consideration of siblings in the psychodynamic discussion of the family and in the clinical setting.

Child↗