Publications by authors named "P Levi Setti"

Do all birds' sex chromosomes follow the same canonical one-way direction of evolution? We combined cytogenetic and genomic approaches to analyze the process of the W chromosomal differentiation in two selected Passeriform species, named the Pale-breasted Thrush Turdus leucomelas and the Rufous-bellied thrush T. rufiventris. We characterized the full catalog of satellite DNAs (satellitome) of T.

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Article Synopsis
  • The study aimed to evaluate how well oocytes (egg cells) mature in a lab setting after being rescued through in vitro maturation (IVM).
  • Researchers analyzed data from 24 studies to compare the outcomes of these lab-matured oocytes with those matured naturally in vivo.
  • Results indicated that lab-matured oocytes had lower rates of fertilization and pregnancy, but for patients with poor responses, using IVM could still enhance treatment outcomes, especially if the maturation process is kept under 6 hours.
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Background: Restorative materials might significantly affect load transmission in peri-implant bone. The aim of the present study is to evaluate the shock absorption capacity of two different polymeric materials to be used for implant-supported prostheses.

Methods: A masticatory robot was used to compare the shock absorption capacity of veneered and non-veneered polyetherketoneketone (PEKK), Pekktonivory (Cendres+Mètaux), and the glass fiber-reinforced composite (GFRC), TRINIA (Bicon).

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Background: Different patterns of sex chromosome differentiation are seen in Palaeognathae birds, a lineage that includes the ratites (Struthioniformes, Rheiformes, Apterygiformes, Casuariiformes, and the sister group Tinamiformes). While some Tinamiform species have well-differentiated W chromosomes, both Z and W of all the flightless ratites are still morphologically undifferentiated. Here, we conducted a comprehensive analysis of the ZW differentiation in birds using a combination of cytogenetic, genomic, and bioinformatic approaches.

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Article Synopsis
  • Charadriiformes is a diverse avian order with over 390 species, including the wattled jacana, which has a unique ZZ/ZW sex chromosome system and intricate karyotype.
  • Researchers characterized satellite DNAs (satDNAs) at molecular and cytogenetic levels, identifying 11 distinct satDNAs that are primarily located on microchromosomes and the W chromosome.
  • Additionally, the study highlighted a significant accumulation of telomeric signals and found (GA) microsatellites as the only ones with positive hybridization, enhancing our understanding of genomic organization in birds with high chromosomal variation.
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