Sophistication in a seemingly simple creature: a review of wild holothurian nutrition in marine ecosystems.

Holothurians are marine invertebrates that are among the most widespread benthic megafauna communities by both biomass and abundance in shallow-water and deep-sea ecosystems, their functions supporting important ecological services worldwide. Despite their simple appearance as sea cucumbers, holothurians show a wide range of feeding practices. However, information on what and how these animals eat is scattered and potentially confusing.

Clonal structure through space and time: High stability in the holothurian (Echinodermata).

Sea cucumbers are increasingly exploited for human consumption and for their curative properties, and many wild populations are now depleted or in danger of extinction. While aquaculture is seen as an alternative to fisheries and as a mean to restore wild populations, more knowledge is needed on their reproductive strategies to render this practice efficient, notably for fissiparous holothurians, which are some of the mobile animals able of asexual reproduction by transverse fission. Little information is available on their population genetic diversity and structure.

[Diffuse nasal polyposis and comorbidity: study of 65 cases treated by endonasal endoscopic surgery].

Introduction: Nasal polyposis is an inflammatory disorder which pathophysiology remains unclear. Several clinical associations are described according to co-morbidities (asthma, allergy..

[Retropharyngeal and lateral pharyngeal abscesses in children].

Objective: Review of the diagnostic and management of retropharyngeal and lateral pharyngeal abscesses in children.

Patients And Methods: Retrospective study of 5 children's cases hospitalized during year 2003.

Results: Diagnosis included CT scan which is often helpful to differentiate cellulitis from abscesses.

Diffuse nasal polyposis and endonasal endoscopic surgery: long-term results, a 65-case study.

Objective: To analyze the efficacy of a standardized surgical procedure in patients with nasal polyposis.

Study Design: Prospective study of nonrandomized cases from a single institution.

Methods: An inception cohort of 65 consecutive patients with nasal polyposis observed from January 1994 to December 1997.