Background and objectives The impact of antibiotics use early in life on later-in-life morbidities has received substantial attention as explanations for atopic and metabolic disorders with a surge as modern lifestyle diseases. The objective of this study was to perform meta-analyses to determine if antibiotics administration during the first two years of infant life is associated with increased risks of atopic or metabolic disorders later in life. Methodology We screened more than 100 English-language prospective and retrospective studies published between January 2002 and March 2020 and assessed study quality using the Newcastle–Ottawa scale. We performed overall and subgroup meta-analyses on 31 high-quality comparable studies on atopic and 23 on metabolic disorders, involving more than 3.5 million children. Results Antibiotic exposure prenatally and during the first two years of life significantly impacts the risk of developing atopic and metabolic disorders. Exposure during the first six months of life appears most critical, consistent with this being the time when the microbiome is most susceptible to irreversible perturbations. The presence of dose-response associations and stronger impacts of broad- than narrow-spectrum antibiotics further point to effects being mediated by microbiota-induced changes. Conclusions and implications Our findings support that antibiotics use is a mismatch to modernity that can negatively affect the symbiotic associations we rely on for proper immune function and metabolism. Improving our understanding of these associations, the underlying proximate mechanisms, and the impact of antibiotics use on future human-symbiont evolution will be important to improve human health. Abstract The use of antibiotics in infancy has been suggested to increase the risks of atopic and metabolic disorders later in life. Through meta-analyses of more than 100 studies (>3.5mio children), we confirm these risks, and the observed patterns are consistent with this being due to microbiota-driven changes.
For the first time ostracod and foraminifera populations living on infralittoral algae were analysed from three different localities near the Ciclopi Islands Marine Protected Area along the Etnean Ionian coast of Sicily, few km N of the city of Catania. Six series of samples, each of three samples, were collected at 5, 10 and 26 m water depth in sea bottom areas where the Biocoenosis of the Infralittoral Algae is developed. Some samples were collected inside the Ciclopi Islands Marine Protected Area (CIMPA) and some outside it.In all the samples the ostracod association is characteristically constituted by a mixture of true shallow water phytal taxa and and infralittoral sediment-dwelling taxa. The family Xestoleberididae is markedly dominant, mainly in the shallowest samples. Xestoleberis dispar represents more than 60% of all the specimens, followed by X. communis and X. dispar. The families Paradoxostomatidae (with Paradoxostoma rarum, P. simile, P. parallelum, P. intermedium, P. atrum and P. caecum), Hemicytheridae (with Aurila prasina and A. convexa), Bairdidae (with Neonesidea mediterranea, N. corpulenta, and N. Longevaginata) follow. Loxoconchidae (with Loxoconcha rhomboidea), Pontocyprididae (with Pontocypris mediterranea and Pontocypris pirifera) and Cytheruridae (with very few specimens of Semicytherura spp.) are subordinate.Foraminifera are represented almost exclusively by phytal benthic taxa. Between them the the family Miliolidae is markedly prevalent, mostly represented by Quinqueloculina species, followed by the family Rotaliidae with Elphidium crispum, E. depressum, E. aculeatum, and Elphidium spp. Discorbidae, with Rosalina spp.; Cibidididae, largely represented by Cibicides refulgens and C. advenum; Planorbulinidae with Planorbulina mediterranensis, are also present.
Sander lucioperca is a fresh water fish characterized with its remarkable nutritional value. Thus, smoking improves sensory and microbiological characteristics. Therefore smoking processes is associated to alterations in some physicochemical fish properties. The object of this study is to evaluate the combined effects of two different processes of smoking (cold and hot) and natural antioxidants obtained from the microalgea Dunaliella salina administrated at two graded concentrations (+0.5pp and +1pp) on the biochemical quality and shelf life of Sander lucioperca fillets were investigated during 1, 20 and 90 days of storage.Smoking Sander lucioperca using Dunaliella salina extract increases polyphenols content in the fillets smoked fish. This natural antioxidant leads to a better preservation for this smoked fish. Dunaliella salina increases of the amounts of lipids and decreases TVBN, PV, TBARS and FFA in cold and hot smoked fillets. Therefore, combined effects of two different processes of smoking (cold and hot) and natural antioxidants could be a promising technique to preserve the Sander lucioperca fillets quality.
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