Publications by authors named "W Feichtinger"
A 7-year cytogenetic study on the leaf litter frog Craugastor fitzingeri from Costa Rica and Panama revealed the existence of highly mobile nucleolus organizing regions (NORs) in their genomes. Silver (Ag)-staining of the active NORs demonstrated an exceptional interindividual pattern of NOR distribution at the telomeres of the chromosomes. All individuals examined showed a different and specific NOR location in their karyotypes.
View Article and Find Full Text PDFComparison of in vitro fertilization outcomes in ICSI cycles after human sperm preparation by density gradient centrifugation and direct micro swim-up without centrifugation.
JBRA Assist Reprod
June 2017
Article Synopsis
- This study aimed to assess the effectiveness of the micro swim-up method for sperm preparation in ICSI treatments, comparing it to a traditional centrifuge method.
- In a multicentric study with 140 ICSI cycles, two groups were formed based on the sperm preparation techniques used: one used discontinuous gradients and the other used the micro swim-up method.
- Results showed no significant difference in fertilization rates, but the micro swim-up group had higher blastulation and pregnancy rates, suggesting it may be a cost-effective and efficient alternative to traditional methods.
The aim of this pilot study was to assess if array comparative genomic hybridization (aCGH), non-invasive preimplantation genetic screening (PGS) on blastocyst culture media is feasible. Therefore, aCGH analysis was carried out on 22 spent blastocyst culture media samples after polar body PGS because of advanced maternal age. All oocytes were fertilized by intracytoplasmic sperm injection and all embryos underwent assisted hatching.
View Article and Find Full Text PDFReproductive outcome in European and Middle Eastern/North African patients.
Reprod Biomed Online
December 2016
The aim of this retrospective cohort study was to assess differences in infertility-related baseline characteristics and IVF outcome between European and Middle Eastern/North African (MENA) patients. Of 2703 patients undergoing their first IVF cycle, 2485 were Caucasian of European descent and 218 originated from the MENA region. MENA patients were significantly younger (30.
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