Five-Year Remission of Hidradenitis Suppurativa Following the Removal of a Levonorgestrel Intrauterine Device and Disease Overview for Obstetrics and Gynecology Providers.

Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease that is characterized by recurrent, painful nodules, sinus tract formation, and scarring. We report the case of a 20-year-old female with the abrupt onset of Hurley stage I HS following the implantation of a levonorgestrel intrauterine device (IUD) and complete remission of disease following the removal of the device one year later. To our knowledge, this is the first documented case of long-term remission of HS after the removal of levonorgestrel IUD. We also provide a concise overview of HS and suggested primary interventions for obstetrics and gynecology providers.

Transfers from residential aged care facilities to the emergency department are reduced through improved primary care services: an intervention study.

AIM: To assess the impact of an enhanced primary care service for residential aged care facilities (RACF) on the transfer of patients from RACF to a hospital emergency department (ED). METHODS: A before-after study of an enhanced primary care service provided by experienced ED-based nurses under the governance of general practitioners. The intervention was analysed comparatively using standardised normal deviates and seasonal autoregressive integrated moving average models, complemented by qualitative assessment. RESULTS: There was a statistically significant reduction (17%, P < 0.001) in the number of transfers during the intervention period. This finding held when adjusting for the seasonality of ED referrals over a 4-year period. The intervention was highly valued by clinicians in RACF and ED. CONCLUSION: Enhanced primary care services reduce the number of transfers to ED from RACF.

Investigating molecular recognition and biological function at interfaces using piscidins, antimicrobial peptides from fish.

We studied amidated and non-amidated piscidins 1 and 3, amphipathic cationic antimicrobial peptides from fish, to characterize functional and structural similarities and differences between these peptides and better understand the structural motifs involved in biological activity and functional diversity among amidated and non-amidated isoforms. Antimicrobial and hemolytic assays were carried out to assess their potency and toxicity, respectively. Site-specific high-resolution solid-state NMR orientational restraints were obtained from (15)N-labeled amidated and non-amidated piscidins 1 and 3 in the presence of hydrated oriented lipid bilayers. Solid-state NMR and circular dichroism results indicate that the peptides are alpha-helical and oriented parallel to the membrane surface. This orientation was expected since peptide-lipid interactions are enhanced at the water-bilayer interface for amphipathic cationic antimicrobial peptides. (15)N solid-state NMR performed on oriented samples demonstrate that piscidin experiences fast, large amplitude backbone motions around an axis parallel to the bilayer normal. Under the conditions tested here, piscidin 1 was confirmed to be more antimicrobially potent than piscidin 3 and antimicrobial activity was not affected by amidation. In light of functional and structural similarities between piscidins 1 and 3, we propose that their topology and fast dynamics are related to their mechanism of action.

Fine mapping in tomato using microsynteny with the Arabidopsis genome: the Diageotropica (Dgt) locus.

BACKGROUND: The Arabidopsis thaliana genome sequence provides a catalog of reference genes applicable to comparative microsynteny analysis of other species, facilitating map-based cloning in economically important crops. We have applied such an analysis to the tomato expressed sequence tag (EST) database to expedite high-resolution mapping of the Diageotropica (Dgt) gene within the distal end of chromosome 1 in tomato (Lycopersicon esculentum). RESULTS: A BLAST search of the Arabidopsis database with nucleotide sequences of markers that flank the tomato dgt locus revealed regions of microsynteny between the distal end of chromosome 1 in tomato, two regions of Arabidopsis chromosome 4, and one on chromosome 2. Tomato ESTs homeologous to Arabidopsis gene sequences within those regions were converted into co-dominant molecular markers via cleaved amplified polymorphic sequence (CAPS) analysis and scored against an informative backcross mapping population. Six new microsyntenic EST (MEST) markers were rapidly identified in the dgt region, two of which further defined the placement of the Dgt gene and permitted the selection of a candidate tomato bacterial artificial chromosome clone for sequence analysis. CONCLUSIONS: Microsynteny-based comparative mapping combined with CAPS analysis of recombinant plants rapidly and economically narrowed the dgt mapping region from 0.8 to 0.15 cM. This approach should contribute to developing high-density maps of molecular markers to target-specific regions for positional cloning and marker-assisted selection in a variety of plants.