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At least 613 records · Page 34Linked to original sources
PubMed2005

Risk factors and outcome of focal and segmental glomerulosclerosis recurrence in adult renal transplant recipients.

BACKGROUND: Recurrence of nephrotic syndrome (NS) after renal transplantation for primary focal segmental glomerulosclerosis (FSGS) is a frequent and still unpredictable complication. However, risk factors for recurrence have not yet been clearly identified. METHODS: Data from 33 patients who underwent 35 renal transplantations for FSGS in two French centres are reported. RESULTS: Recurrent NS occurred in 12 transplant recipients (34%). A significantly higher number of patients in the group with recurrence (R group) compared with the group without recurrence (NR group) received cyclosporine for FSGS treatment before transplantation (83.3% vs 43.4%, P<0.02). Donors of R group recipients were significantly older than those of the non-NR group recipients (42.8 years vs 35 years, P<0.05). A higher number of patients from the R group required post-transplantation dialysis (33.3% vs 17.4%, P = 0.002). Surprisingly, acute rejection occurred more frequently in patients of the NR group compared with the R group, although the difference was not significant. Among the 12 patients with NS relapse, 9 were treated with plasmapheresis. Graft loss related to recurrence occurred in 6 cases. The 5-year graft survival was significantly lower in patients with recurrent NS compared with patients without recurrence (57% vs 82%, P<0.001). CONCLUSION: This study confirms the benefit to identify in the future clinical or biological predictive risk factors for NS recurrence after renal transplantation. It also indicates that donor age is a reliable risk factor for recurrence in adult recipients and suggests for the first time a possible opposite relationship between recurrent FSGS and acute rejection.

Adult↗
PubMed2005

Window renovation and exposure to lead--an observational study.

BACKGROUND: Renovation of windows in old houses has recently established itself as an industry. A recognizable occupational lead exposure exists, which has not been studied previously. AIM: To compare lead exposure amongst window renovators with other groups of lead-exposed workers. METHODS: Using blood lead results measured at the Health and Safety Laboratory (HSL), Sheffield, comparisons were made between three cohorts: window renovation workers, all male workers monitored by HSL during the period 1999-2001 and 63 male subjects involved in chemical paint-stripping of wood. RESULTS: Both the window renovation and the wood-stripping cohorts show significantly higher blood lead distributions than the 'all workers' cohort (P < 0.001). A similar pattern was also found for comparison of the prevalence of subjects above the UK suspension level of 60 microg/dl (2.89 microM) (window renovation, P < 0.001; wood-stripping, P < 0.0001). Blood lead results at or above the suspension level in wood-strippers were significantly higher compared to window renovators (P = 0.034). CONCLUSION: Window renovation is shown to present a potential for significant lead exposure, and suspension from work under The Control of Lead at Work Regulations 2002. Two groups of risk factors predominate: the well-documented potential for release of lead from old paint, and the peripatetic nature of the work.

Chemical Industry↗
PubMed2005

Atom-specific identification of adsorbed chiral molecules by photoemission.

The study of chiral adsorbed molecules is important for an analysis of enantioselectivity in heterogeneous catalysis. Here we show that such molecules can be identified through circular dichroism in core-level photoemission arising from the chiral carbon atoms in stereoisomers of 2,3-butanediol molecules adsorbed on Si(100), using circularly polarized x rays. The asymmetry in the carbon 1s intensity excited by right and left circularly polarized light is readily observed, and changes sign with the helicity of the radiation or handedness of the enantiomers; it is absent in the achiral form of the molecule. This observation demonstrates the possibility of determining molecular chirality in the adsorbed phase.

Journal Article↗
PubMed2004

Teledentistry in the United States: a new horizon of dental care.

Teledentistry has been developing since 1994 as a means to allow dental professionals to communicate with one another over long distances. It allows collaboration by multiple practitioners regarding a patient and the necessary treatment for this patient. Teledentistry can be greatly utilized with rural communities or those of underserved populations. It would increase the accessibility of specialists, besides decreasing time and cost associated with specialty consultations. Real-time videoconferencing and store and forward techniques are the mostly commonly used methodologies for teledentistry. Teledentistry will become more widely seen and utilized by the increase in digital media found in dental practices.

Dental Health Services↗