Leveraging IT to deliver primary care -- the case of the Democratic Republic of the Congo (age-old problem, new paradigm)

There is a growing acknowledgement of the role of information technology (IT) tools in improving health-care delivery. The gains in efficiency resulting from implementing even limited IT are expected to be more significant in resources-constrained health-care settings. The Democratic Republic of the Congo (DRC), emerging from a devastating civil war, has incorporated IT into the rebuilding of its primary care delivery system. Its basic strategy is to leverage COTS when affordable, FLOSS when practical.

Supplementation with vitamins C, E, beta-carotene and selenium has no effect on anti-oxidant status and immune responses in allergic adults: a randomized controlled trial

BACKGROUND

Anti-oxidants are of growing interest in early treatment and prevention of allergic diseases in early life, but the effects on allergen-specific immune responses need to be documented further before intervention studies in infants are undertaken. The aim of this study in adults was to determine the effects of dietary anti-oxidants on allergen-specific immune responses in sensitized individuals.

METHODS

In a randomized controlled trial, 54 allergic adults received an anti-oxidant supplement (n=36) comprising beta-carotene (9 mg/day), vitamin C (1500 mg/day), vitamin E (130 mg/day), zinc (45 mg/day), selenium (76 microg/day) and garlic (150 mg/day) or a placebo (n=18) for 4 weeks. Anti-oxidant capacity (AC), serum levels of vitamin C, vitamin E, beta-carotene and selenium, peripheral blood responses, exhaled nitric oxide (eNO), as a marker of airway inflammation, and plasma F(2) isoprostanes, as a measure of oxidative stress, were measured before and after supplementation.

RESULTS

Anti-oxidant supplementation resulted in significant increases in serum levels of vitamin C, vitamin E, beta-carotene and selenium levels, compared with the placebo group (P<0.001). There was no change in serum AC, plasma F(2)-isoprostanes, eNO or immune responses following supplementation with anti-oxidants compared with placebo.

CONCLUSION

Supplementation with anti-oxidants resulted in significantly increased levels of vitamin C, vitamin E, beta-carotene and selenium but no change in immune responses, serum AC or plasma F(2)-isoprostanes.

Agreement of decision analyses and subsequent clinical studies in infectious diseases

PURPOSE

Decision analysis techniques can compare management strategies when there are insufficient data from clinical studies to guide decision making. We compared the outcomes of decision analyses and subsequent clinical studies in the infectious disease literature to assess the validity of the conclusions of the decision analyses.

METHODS

A search strategy to identify decision analyses in infectious disease topics published from 1990 to 2005 was developed and performed using PubMed. Abstracts of all identified articles were reviewed, and infectious disease-related decision analyses were retained. Subsequent clinical trials and observational studies that corresponded to these decision analyses were identified using prespecified search strategies. Clinical studies were considered a match for the decision analysis if they assessed the same patient population, intervention, and outcome. Agreement or disagreement between the conclusions of the decision analysis and clinical study were determined by author review.

RESULTS

The initial PubMed search yielded 318 references. Forty decision analyses pertaining to 29 infectious disease topics were identified. Of the 40, 16 (40%) from 13 infectious disease topics had matching clinical studies. In 12 of 16 (75%), conclusions of at least 1 clinical study agreed with those of the decision analysis. Three of the 4 decision analyses in which conclusions disagreed were from the same topic (management of febrile children).

CONCLUSIONS

There was substantial agreement between the conclusions of decision analyses and clinical studies in infectious diseases, supporting the validity of decision analysis and its utility in guiding management decisions.

Associations between antioxidant status, markers of oxidative stress and immune responses in allergic adults

BACKGROUND

There has been growing interest in the role of antioxidant function in controlling inflammatory disease states, such as allergy. This study investigated the relationship between antioxidant status, markers of airways inflammation [exhaled nitric oxide (eNO)], oxidative stress (F(2) isoprostanes) and immune responses in allergic adults.

METHODS

Antioxidants (vitamins C, E, beta-carotene and selenium) and total antioxidant capacity (tAC) in serum were examined in relation to eNO, plasma F(2) isoprostanes and peripheral blood mononuclear cell (PBMC) cytokine and lymphoproliferative response to house dust mite (HDM) allergen, Staphylococcus enterotoxin B (SEB), phytohaemaglutinin (PHA) and lipopolysaccharide (LPS) in 54 allergic adults.

RESULTS

Firstly, levels of specific vitamins did not correlate with tAC. Secondly, we did not see any evidence that specific vitamin levels (or tAC) were associated with either polarization or attenuation of in vitro immune responses. If anything, there were positive correlations between antioxidant (vitamin C and selenium) levels and HDM allergen responses [lymphoproliferation (selenium; r=0.35, P=0.013) and both Th2 IL13 (vitamin C; tau=0.254, P=0.028) and Th1 IFN-gamma (vitamin C; tau=0.302, P=0.009) responses]. There were also significant positive relationships between antioxidant levels and IL-10 responses to polyclonal stimulation by SEB (r=0.292, P=0.036) and LPS (r=0.34, P=0.015) (beta-carotene) and PHA (r=0.34, P=0.021) (tAC). Thirdly, although airways inflammation (eNO) was associated with both in vitro and in vivo (skin test reactivity) to HDM, we did not see any correlation between eNO and oxidative stress (F(2)-isoprostanes). Finally, there were no consistent relationships between oxidative stress and immune responses.

CONCLUSION

There was no evidence that higher antioxidant levels were associated with reduced allergen responsiveness in allergic adults. If anything, antioxidant status was associated with increased immune responsiveness. The significance of this needs to be addressed in future intervention studies.

[Structural quality of rheumatology clinics for children and adolescents. Paper by a task force of the "Society of Pediatric and Adolescent Rheumatology" and of the "Association of Rheumatology Clinics in Germany"]

Rheumatic diseases in childhood and adolescence differ from those of adulthood according to type, manifestation, treatment and course. A specialized therapy, starting as early as possible, improves the prognosis, can prevent long-term damage and saves the costs of long-term care. Only a specialized pediatric care system can guarantee optimum quality of the processes involved and the results for rheumatology in childhood and adolescence within a global financial system. This requires adequate structural quality of the specialized clinics and departments for pediatric rheumatology. The management of rheumatic diseases in childhood and adolescence is comprehensive and requires a multidisciplinary, specialized and engaged team which can cover the whole spectrum of rheumatic diseases with their various age-dependent aspects. In order to guarantee an adequate, cost-efficient routine, a specialized center which concentrates on inpatient care should treat at least 300 patients with pediatric rheumatic diseases per year. The diagnoses should be divided among the various disease categories with at least 70% of them involving inflammatory rheumatic diseases. For the inpatient care of small children, an accompanying person (parent) is necessary, requiring adequate structures and services. Patient rooms as well as diagnostic (radiography, sonography, etc.) and therapeutic services (physiotherapy, occupational therapy, pool, etc.) must be adequate for small children and school children as well as adolescents. Suitable mother-child units must also be provided and a school for patients is required within the clinic. A pediatric rheumatologist must be available 24 h a day, and it must be possible to reach other specialists within a short time. For painful therapeutic procedures, age-appropriate pain management is obligatory. A continuous adjustment of these recommendations to changing conditions in health politics is intended.