objectives: this study aims to assess the relationship between the frequency of aggressive behaviors, life satisfaction (ls) and self- rated health (srh) and counseling with family members in a representative sample of iranian children and adolescents. methods: in this nationwide study, 14880 school students, aged 6-18 years, wereselected by cluster and stratified multi-stage sampling method fr...

aggressive osteoblastoma (ao) is a benign osteoblastic tumor which is rare in the head and neck region. clinical and histological features are therefore overlap with other benign and low-grade malignant tumors. the aim of this article is to report and discuss the differential diagnosis of an aggressive osteoblastoma in the mandible. a 25-year-old male patient reported with pain and asymmetry on...

statement of problem: the elimination of actinobacillus actinomycetemcomitans (a.a) is a key factor for achieving a successful treatment in patients with aggressive periodontitis (agp) whom harboring this organism. this micro organism’s capability to invade to host’s tissues, makes its eradication with mechanical therapy (eg. flap surgery, scaling, oral hygiene) very difficult, so there is no o...

non hodgkin lymphomas (nhl) are nodal or extra nodal monoclonal infiltrations by malignant lymphoid cells (b lymphocytes in 80% of cases), which are distinguished as indolent or aggressive forms. according to the heterogeneity of lymphoid cells and their ubiquitous anatomical distribution, these disorders can develop in any organ and have very heterogeneous clinical expressions, but they are us...

Manganese, copper, and zinc concentrations were determined in serum and packed blood cells of normal controls, patients with acute and chronic (persistent or aggressive) hepatitis, and cases of postnecrotic cirrhosis. During the active phase of acute hepatitis, serum manganese concentrations are invariably increased; the difterence between the mean value and the normal is highly significant, P<...

Testosterone is assumed to be the key hormone related to resource-defence aggression. While this role has been confirmed mostly in the context of reproduction in male vertebrates, the effect of testosterone on the expression of resource-defence aggression in female vertebrates is not so well established. Furthermore, laboratory work suggests that progesterone inhibits aggressive behaviour in fe...

Predatory (towards crickets), intermale, and maternal aggression were examined in four replicate lines of mice that had been selectively bred for high wheel-running (S) and in four random-bred control lines (C). In generation 18, individual differences in both predatory and intermale aggression were significantly consistent across four trial days, but predatory and intermale aggression were unc...

One of the rare variants of extranodal large B-cell lymphoma is intravascular large B-cell lymphoma (IVLBCL). Characteristics of IVLBCL include intraluminal selective proliferation of atypical lymphoid cells in small to medium-sized vessels. The etiologic of IVLBCL is unknown, but due to the growth pattern of this tumor, it is speculated that IVLBCL is caused by a defect in homing receptor of t...