Psychological factors associated with the uptake of measles immunization: findings and implications for prevention

A cross-sectional study of 8204 children was performed to investigate the prevalence of immunization against measles, mumps and rubella and possible determinants of immunization uptake. The study was approached from a Lewinian perspective on preventive behaviour. Seventy-one questions referring to the guardian of the child, his or her partner, the household and the child, as well as to immunization-related experiences and situational topics were asked. Two psychological variables were studied: health locus of control and subjective relevance concerning measles. The immunization rate was 77.7 percent [95 percent confidence interval 76.8-78.6]. Multiple logistic regression yielded the following odds ratios for non- uptake of measles immunization: natural health orientation 8.74 [6.72-11.37]; advice of paediatrician 6.02 [4.67-7.75]; dangerousness of measles 2.00 [1.53-2.60]; marital status 1.87 [1.31-2.51]; assessed reliability of vaccination 1.57 [1.23-2.01]; smoking 1.55 [1.21-1.98]; and number of siblings 1.55 [1.21- 1.98]. Parents or guardians of immunized children were more internal and assessed measles as more relevant than those of non- immunized children.     

An autoradiographic study of chondrocyte transformation into chondroclasts and osteocytes during bone formation In vitro

Excised mouse pubic bone rudiments were exposed to H³-thymidine. Rudiments preserved immediately after exposure consisted of mesenchyme with a large number of cells showing intense radioactivity. Rudiments incubated on a filter membrane after exposure went through the developmental stages of complete chondrification of the pubic rami followed by periosteal and then endochondral bone formation. Only chondrocytes showed radioactivity in rami consisting of cartilage and periosteal bone that were preserved prior to endochondral ossification. Cell types showing radioactivity in rami preserved during endochondral ossification were chondrocytes, chondroclasts, and osteoblasts and osteocytes of endochondral bone. The results of the study demonstrated that hypertrophic chondrocytes of the calcified cartilage of a developing mammalian long bone not only survive dissolution of their matrix, but transform into chondroclasts and osteoprogenitor cells that give rise to osteoblasts and osteocytes which form endochondral bone in the absence of blood vessels.     

The effect of long-term irradiation with fluorescent light on the rat fundus

In the rat, continous exposure to so-called cold light of 800 lux leads to a nearly complete loss of retinal photoreceptors, which occurs within 4 weeks. This process is followed by vascularization of the retinal pigment epithelium (RPE). The origin, extent, and expansion of such proliferations within 6 months after the onset of irradiation were evaluated by means of light microscopy, transmission electron microscopy, scanning electron microscopy, corrosion cast preparation, india ink injection, and trypsin digest preparation. The vessels within the RPE were found to be fenestrated and to form a network with the vessels of the neurosensory retina. Invasion of Bruch's membrane and formation of chorioretinal anastomoses were not observed. The occurrence of vessels within the RPE coincided with a massive regression of capillaries in the neurosensory retina.     

Problems in establishing accurate family history in patients with ovarian cancer of epithelial origin

A detailed family history was obtained from 90 ovarian cancer patients and 90 age-matched controls. Relatives who died in Alberta had their death year and cancer history verified. Year of death was accurate in 12/20 and negative history of cancer in 30/30. Cancer was reported in 229/2,544 relatives. Of these, 104 were or had been residents of Western Canada, but only 69 malignancies were confirmed through population-based cancer registries. This resulted in an error rate of 10/39 (26%) for parents, 7/31 (23%) for siblings, and 18/34 (53%) for uncles and aunts; error rate is similar for patients and controls. A "positive" history of cancer was reported by 53/90 (59%) of patients and 68/90 (76%) of the controls (chi 2 = 5.7); this difference disappears when the total number of relatives is considered: 92/1,179 (7.8%) in patients and 134/1,366 (9.8%) in controls (chi 2 = 3.3). The age of relatives should also be considered for age/sex-specific years at risk comparison. In summary, the validity of studies showing family history of cancer is questionable owing to the multiple sources of error and the lack of specificity of the methods of analysis.     

Significance of preoperative prognosis

The granulocyte phagocytosis test, Karnofsky index, and ASA standard were used in the context of 287 patients for general surgery, for the purpose of retrospective elucidation of the relationship between presurgical prognostication and postsurgical complications. Sensitivity, specificity, and "predictive values" were calculated. The highest information potential in terms of prognostication was recorded from objectively measurable granulocyte phagocytosis. Presurgical prognostication was found to be of clinical relevance only to surgical problem patients.     

Absorption of oral aminoglycosides following bone marrow transplantation

Four patients with severe gastrointestinal reactions receiving oral "nonabsorbable" antibiotics for gut sterilization following bone marrow transplantation absorbed clinically significant amounts of aminoglycoside (gentamicin and/or tobramycin). Serum concentrations of 2.2, 2.6, 5.8, and 12.0 micrograms/ml were measured. Two of these patients had acute graft versus host reactions and two had severe mucositis following cytoreduction with intensive chemotherapy and irradiation. Nephrotoxicity occurred in the latter patients. One patient was studied in detail. Her hospital course and investigative results are presented. Four additional patients with mild gastrointestinal reactions following cytoreduction did not absorb gentamicin when their toxicity was maximal. Serum aminoglycoside determinations are necessary in patients receiving oral aminoglycosides for gut sterilization following bone marrow transplantation if moderate to severe gastrointestinal reactions occur.     

Autonomie in der Offenen Kinder- und Jugendarbeit fördern – Ergebnisse eines partizipativen Evaluationsprojekts

Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz - Partizipation zu ermöglichen ist Teil des Auftrags der Offenen Kinder- und Jugendarbeit. Dazu gehört die Einbindung der...