The AflibeRcept use in rEal life study for the treatment of diabetiC macular oedema In the French overseas territories: A 12 months follow-up Study - The RECIF Study.

PURPOSE: The incidence and severity of diabetes is particularly high in the French overseas territories (FOT). The RECIF study evaluated real life management of diabetic macular oedema (DME) treated by aflibercept in FOT. METHODS: A prospective, noncomparative, multicentric, non-interventional, study that evaluated functional and anatomical results of patients treated by aflibercept. Twelve retina specialists working in French Polynesia, La Reunion, Guadeloupe and Martinique participated in the study. RESULTS: 67 eyes of 57 patients were followed for 12 months. Average VA gain was 7.8 ETDRS letters. 29.9% of eyes gained at least 15 letters, 6% lost 15 letters or more. 67.2% of eyes achieved visual acuity of 70 letters or better. Average central retinal thickness decrease was 115.3 µm. The mean number of injections during the 1st year of treatment was 4.9. 69% of eyes had a loading dose of at least three-monthly injections. 3 eyes were switched to steroid injections during the follow-up for lack of efficacy. CONCLUSION: This study confirmed the efficacy of intravitreal treatment of DME by aflibercept, in the French overseas territories. This evaluation of real-life management of DME underlines the importance of improvement of patient education and collaboration with referring physicians.

Oxygreen process applied on nongerminated and germinated wheat: role of hydroxamic acids.

Wheat samples were taken at different stages of germination characterized by their falling number (which is a relevant indicator of germination) from 400 to 60 s. Each batch was treated by the Oxygreen process, a treatment by ozone, in a closed sequential batch reactor. Leucotriene B4 (LTB 4) was induced by germination, but ozone treatment did not increase this effect. Extract obtained from these wheat batches was applied on human epithelial bronchial cells. Wheat extract from nongerminated wheat did not induce any DNA adduct. More the wheat germination gets underway, more DNA adducts are observed. In contrast, germination did not affect the cell viability. Ozonization of wheat exemplified genotoxic effects only if the wheat was germinated. The implication of hydroxamic acids is discussed. In conclusion, ozonization of wheat, of high milling quality, does not pose any problem.

INBREEDING DEPRESSION, NEUTRAL POLYMORPHISM, AND COPULATORY BEHAVIOR IN FRESHWATER SNAILS: A SELF-FERTILIZATION SYNDROME.

This paper examines the consequences of self-fertilization on life-history traits and neutral genetic polymorphism in natural populations of three species of hermaphrodite freshwater snails: Biomphalaria straminea, Bulinus globosus, and the aphallic species Bulinus truncatus. Life-history traits (fecundity, growth, hatching rate, and survival of offspring) are compared under laboratory conditions between isolated (obligatory selfing) and paired (outcrossing possible) snails in one population of B. straminea and B. globosus and two populations of B. truncatus. The genetic polymorphism of the same four populations is analyzed using electrophoretic markers in B. straminea and B. globosus and microsatellite markers in B. truncatus. In B. truncatus and B. straminea, isolated snails have a higher fecundity than paired snails, whereas the contrary is observed in B. globosus. For all populations, no difference in hatching rate and offspring survival is detected between the two treatments. Genetic analyses using microsatellite markers conducted in B. truncatus on progeny of paired snails reveal a high selfing rate in spite of high copulation rates, highlighting the difficulties of obtaining outcrossing in highly selfing snails. The high survival of selfed offspring in B. truncatus and B. straminea indicates that inbreeding depression is limited. The extent of inbreeding depression in B. globosus is less clear. Overall, fitness decrease in this species is limited to fecundity. The extent of allozyme polymorphism is very limited whereas a much higher variability is observed with microsatellites. Biomphalaria straminea and B. truncatus populations are also characterized by very low observed heterozygosities and large heterozygote deficiencies, whereas the B. globosus population does not exhibit such a deficiency. Overall these results allow the definition of a self-fertilization syndrome in hermaphrodite freshwater snails: selfing populations (such as those of B. straminea and B. truncatus studied here) are characterized by high selfing rates in spite of copulations, limited deleterious effects of selfing, limited neutral genetic polymorphism, and large heterozygote deficiencies.