Photodynamic therapy has antifungal effect and reduces inflammatory signals in Candida albicans-induced murine vaginitis.

BACKGROUND: Vaginal candidiasis (VC) is a disease that affects thousands of women of childbearing age, mainly caused by Candida albicans fungus. Photodynamic therapy (PDT) uses photosensitizing substances that are nontoxic in the dark, but able to produce reactive oxygen species when they are subjected to a light source. In this work our purpose was to investigate PDT effects on fungal burden and inflammatory cells in a murine model of C. albicans-induced vaginal candidiasis. METHODS: Female BALB/c mice 6-10 weeks were estrogenized and maintained in this state during all experiment. After 72h, mices were inoculated intravaginally (IV) with 20µL of 2×10(5)C. albicans cells suspension. Mice were separated into 5 groups after five days: H (healthy), PBS (control), laser, MB (methylene blue) and PDT. PDT and MB groups received IV 20µL solution with 1mM of MB, others received PBS. PDT and laser groups were irradiated with a red laser (100mW, 660nm) in one (36J, 6min) or two sessions (18J, 3min). After the end of treatment, mice were submitted to microbiological and histomorphometric analysis with ImageJ software. Data were plotted by mean values and standard deviations of CFU/mL and percentage of inflammatory cells area. ANOVA and Bonferroni post-test were used and data were considered significant when p<0.05. RESULTS: PDT significantly reduced C. albicans after the two tested protocols, however, percentage area of inflammatory cells was significantly reduced just with two sessions of PDT. CONCLUSIONS: PDT with MB and red laser is a promising therapy for VC. It is able to reduce fungal infection in biofilm and inflammatory signals associated with VC in a murine model of vaginitis.

Premature discontinuation of interferon plus ribavirin for adverse effects: a multicentre survey in 'real world' patients with chronic hepatitis C.

BACKGROUND: Interferon-alpha plus ribavirin therapy for chronic hepatitis C is associated with adverse effects that lead to therapy discontinuation in up to 27% of patients in randomized controlled trials. AIM: To examine the causes and predictive factors for therapy discontinuation in patients treated in current clinical practice. METHODS: We retrospectively enrolled 441 consecutive patients, scheduled to receive interferon-alpha + ribavirin for chronic hepatitis C, in five centres. Patients had been treated with 3 or 6 MU interferon-alpha three times a week plus ribavirin, 800-1200 mg daily, for 6 or 12 months. RESULTS: One hundred and eight [24.5%; confidence interval (CI), 20.5-28.8%] patients failed to finish combination therapy because of adverse events. The discontinuation rate was higher during the first 6 months of treatment; anaemia was an important cause (36.1% of discontinuations); unexplained lipothymia resulted in discontinuation in 11 patients. Female gender [hazard ratio (HR) = 1.85; CI, 1.17-2.92], an interferon-alpha dose > 15 MU/week (HR = 1.79; CI, 1.12-2.86) and no previous interferon-alpha treatment (HR = 1.63; CI, 1.04-2.57) were independent factors associated with discontinuation. The simultaneous presence of these factors identified patients at high risk for discontinuation [odds ratio (OR) = 10; CI, 3.98-25.13]. CONCLUSIONS: The study identified some predictive factors for adverse event-related discontinuation, which may improve the safety profile and effectiveness of interferon-alpha + ribavirin combination therapy in chronic hepatitis C.

[Psychiatric reform in Brazil: contextualization and thoughts about the care for the mentally ill in the family]. / A reforma psiquiátrica no Brasil: contextualização e reflexos sobre o cuidado com o doente mental na família.

This work analyzes the consequences of the Brazilian psychiatric reform to the care provided to the mentally ill in their family environment. It is a descriptive and exploratory study based on a qualitative approach, using the historical-dialectic materialism as its theoretical and methodological framework. The subjects of the research were 11 women that provided care to mentally ill persons. The analysis of their discourses revealed unique aspects related to caring for the mentally ill in their family environment and the difficulties resulting from the process of institutionalization of the mentally ill. The conclusion is that women who provide care for the mentally ill have an important social role that is indispensable to the consolidation of the psychiatric reform in the country.

[The home caregiver in Betim/MG]. / O ser cuidador na Internação Domiciliar em Betim/MG.

This is a qualitative study about the care provided by "caregivers" enrolled in the Home Care Program in Betim, Minas Gerais. Interviews were held during home visits in order to identify characteristics of home care providers, analyze their perception about health care, verify factors which interfere in home care and relationships which are established between caregiver/person cared for/other family members. Discourse analysis (Fiorin, 1993) was used to build the empirical categories which revealed that most of the caregivers are family members, women, average age of 42 years, limited schooling, mostly housewives. The subjects sampled reported that the act of caring involves technique, duty and dedication. They referred to financial difficulties, physical and emotional stress. The relationships established during care involved feelings of pleasure, satisfaction and helplessness in the face of the needs and sufferings of the person cared for. The authors concluded that home care fosters more humane care, but requires technical guidance and emotional training for the caregivers and support from the health institution.

[Innovative initiative in nursing teaching in Latin America]. / Iniciativa de inovação do ensino de enfermagem na América Latina.

The study describes a set of nine projects which are initiatives in the innovation of the teaching twelve country of Nursing in Latin America. It discusses the purpose of these projects so as to incorporate pedagogical concepts which are critical and provoke reflection, and active methods of teaching and analysis of conceptual aspects, the management, strategies and models which are adopted. It describes the common features of the courses in the semi-present and distance forms and analyzes the teaching methods which focus on the teacher-student relation, as strengthening group and independent learning, as well as the use of adequate teaching materials. It also analyzes the communication system established by the projects, which seeks to strengthen horizontal relations, incorporating technology and distance education. It concludes by suggesting that this initiative is a suitable strategy to contribute to build new models for training nursing personnel.

Typhoid fever in the Neapolitan area: a case-control study.

Typhoid fever is endemic in the Neapolitan area, where its yearly incidence rate largely exceeds the corresponding national figure. During the period from January to June, 1990, a matched case-control study was carried out in order to identify risk factors of the disease in this area; 51 subjects (mean age 27.2 years) with typhoid fever were compared with 102 controls matched with respect to age, sex and educational level. Consumption of raw shellfish was reported by 76.5% of the cases, as opposed to 19.6% of the controls (P < 0.01). Subjects who had eaten this food item had a 13.3-fold risk (C.I. 95% = 5.5 - 32.8) of contracting typhoid fever. In contrast, no risk was found to be associated with consumption of cooked shellfish, raw vegetables, ice-cream, non-potable water, or unpasteurized milk. The risk factor identified in this study shows that hazardous dietary habits and inadequate sewage treatment facilities, combined with lack of sanitation in the harvesting and marketing of shellfish, play a major role in the endemicity of typhoid fever in the Neapolitan area.

[Monotherapy, empirical and targetted, with imipenem-cilastatin in sepsis of bacterial origin]. / La monoterapia, empirica e mirata, con imipenem-cilastatina nelle sepsi ad eziologia batterica.

The authors describe an open study in 22 patients with febrile conditions of unknown origin who were treated with imipenem-cilastatin while waiting for routine laboratory and culture tests. These were done immediately at the patients' entry into hospital, after which imipenem-cilastatin treatment was started immediately, and was subsequently confirmed by the isolates and culture tests. The drug was found to be active and to eradicate the responsible organism in all cases. In addition, it was found to be easy to handle and not to give rise to side-effects or changes in laboratory tests.

[Anti-hepatitis B vaccination in Campania. Final observations of a 3-year vaccination campaign, with special reference to infants born to HBsAg-positive mothers]. / La vaccinazione anti-epatite B in Campania. Osservazioni consuntive di 3 anni di campagna vaccinale, con particolare riguardo ai nati da madre HBsAg positiva.

The results obtained at the end of the first three years of a hepatitis B vaccination campaign in Campania, are reported. HEVAC-B and H-B-VAX proved innocuous and efficacious in producing anti-HBs. Newborn babies and children produced anti-HBs more often and with higher titres than adults. Titre 10 mUI/ml of anti-HBs persisted, in the responders for at least 36 months on average. AVH by HBV was observed in two adult non responders. Transplacental or delivery infection was observed in 9.3% of the babies born of HBsAg positive mothers and more often among babies born of HBeAg positive mothers. Infection by HBV was observed in 6.0% of the babies, in 4.0% of the children and in 12.0% of the adults, in spite of the production of anti-HBs. HB-antigenemia, was as a rule transitory, but sometimes fluctuating or persistent. Careful observation during a prolonged follow up is necessary for these subjects.