Ein Absaugegerät für die Hypophysektomie an der Ratte

Zusammenfassung Ein Absauggerät, bestehend aus einer Glasröhre mit einer kugeligen und einer zylindrischen Erweiterung wird angegeben. Es wird bei der Hypophysektomie an der Ratte verwendet. Man erreicht damit eine Verbesserung in dem Sinne daß 1. die Entfernung der Hypophyse und ihre Prüfung auf Vollständigkeit gut mit dem Auge kontrolliert werden und 2. das Organ aufgefangen und danach einer weiteren Verarbeitung zugeführt werden kann.Mit 1 Textabbildung     

Influence of topical application of chlorhexidine on chronic gingivitis and gingival wound healing in the dog

Abstract— The present study examines the effect of topically applied chlorhexidine gluconate on chronically inflamed gingiva and standardized gingival wounds. Five beagle dogs were fed a soft "gingivitis inducing" diet for a period of 5 months. Subsequently, a 2 % chlorhexidine solution was applied daily for 42 days to the left molars, premolars, and canines of three dogs, the corresponding teeth in the right quadrants serving as controls. The degree of gingivitis, plaque, gingival exudation, and number of crevicular leukocytes were assessed on days 0, 11, 28, 35, and 42. The healing after gingival biopsy was studied in two dogs using the same parameters on days 0, 4, 7, 14, 28, and 42. In one of the dogs chlorhexidine was applied daily to the teeth and gingiva; the other dog had saline treatment. Biopsies for histologic examination were obtained at the beginning and the end of the experiment. From these criteria, it was shown that one daily topical application of 2 % chlorhexidine gluconate to the teeth and gingiva of the dog removes plaque and resolbes a well-established chronic gingivitis. It is concluded that in the dog it is passible through topical applications of chlorhexidine to establish and maintain a plaque- and gingivitis-free dentition.     

Impact of galactomannan testing on the prevalence of invasive aspergillosis in patients with hematological malignancies

Galactomannan (GM) is a polysaccharide component of the cell wall of Aspergillus spp. and is released into the host's circulation by growing hyphae. GM testing of patients with hematological malignancies has been rarely considered in recent epidemiologic studies of invasive mould infections (IMIs). The aim of the investigation was to analyze the impact of GM testing on the reported prevalence of IMI by comparing detection rates of IMI before and after the introduction of this diagnostic procedure. Prevalence of IMI was assessed by conducting a prospective single-centre study over seven months in 2010. Results obtained were then compared to those obtained with a representative collection of patients assessed by the same investigators at the same institution over seven months in 2007, i.e., prior to the introduction of GM testing. We found that, in general, detection rates of invasive aspergillosis (IA) and invasive mould infections increased significantly after the introduction of GM analysis. This study may therefore indicate that GM testing has a significant impact on the reported prevalence of IMI. Broad usage of such testing in patients with hematological malignancies may be able to produce a realistic picture of IMI rates when current diagnostic criteria are applied.     

How do social-psychological concerns impede the delivery of care to people with HIV? Issues for dental education

Oral health is an essential aspect of the overall medical care for patients with HIV. However, fear of status disclosure is a significant barrier to access to care. Preparing future oral health care providers to maintain all aspects of confidentiality and to understand the role stigma plays in the lives of HIV-positive individuals are critical issues that must be addressed by dental education. To provide important perspectives regarding HIV-related stigma and confidentiality, data from the HAART (Highly Active Antiretroviral Therapy) Project is presented. This study is a five-year National Institute of Allergy and Infectious Disease (NIAID)-funded longitudinal qualitative study of sero-positive African Americans' adherence to antiretroviral therapy (N=137). The current literature regarding HIV patient confidentiality and student attitudes regarding HIV/AIDS is also reviewed. Findings suggest that dental student attitudes may be improved by providing more comprehensive experiences and information and that procedures in place in dental clinics should be continuously monitored to ensure that patient confidentiality is maintained. Strategies for addressing these important issues in dental education are presented. Ensuring that dental school graduates are well prepared to maintain confidentiality with sensitivity to the role stigma plays in HIV disease has the potential to enhance access to health care.     

Number and timing of antenatal HIV testing: Evidence from a community-based study in Northern Vietnam

Background  

HIV testing for pregnant women is an important component for the success of prevention of mother-to-child transmission of HIV (PMTCT). A lack of antenatal HIV testing results in loss of benefits for HIV-infected mothers and their children. However, the provision of unnecessary repeat tests at a very late stage of pregnancy will reduce the beneficial effects of PMTCT and impose unnecessary costs for the individual woman as well as the health system. This study aims to assess the number and timing of antenatal HIV testing in a low-income setting where PMTCT programmes have been scaled up to reach first level health facilities.