Results 41 to 50 of about 138,948 (288)

Testing the paradox of enrichment along a land use gradient in a multitrophic aboveground and belowground community [PDF]

, 2012
In the light of ongoing land use changes, it is important to understand how multitrophic communities perform at different land use intensities. The paradox of enrichment predicts that fertilization leads to destabilization and extinction of predator-prey
Aad J. Termorshuizen, AM Klein, AM Verschoor, B Blossey, BA Hawkins, BC Verschoor, C Thies, CJ McClean, E Gerber, E Morrien, GJ Masters, H Mueller-Schaerer, J Vandermeer, JA Rudgers, JL Maron, Katrin M. Meyer, KM Meyer, KM Meyer, KN Sunding, L Royer, M Erb, M Erb, M Schädler, M Vos, M Walker, Martin Heil, Matthijs Vos, ME Fenn, ML Rosenzweig, ML Rosenzweig, NA Moran, NM Van Dam, OE Sala, P Hoehn, R Soler, RA Hufbauer, S Rasmann, S Wurst, T Bukovinszky, T Fukami, TR Hunt-Joshi, W. H. Gera Hol, WH Van der Putten, WH Van der Putten, Wim H. van der Putten, Wolf M. Mooij, ZA Sylvain   +46 more
core   +9 more sources

Should rescue ICSI be re-evaluated considering the deferred transfer of cryopreserved embryos in in-vitro fertilization cycles? A systematic review and meta-analysis

Reproductive Biology and Endocrinology, 2021
Background Total fertilization failure represents a particularly frustrating condition for couples undergoing in vitro fertilization. With the aim of reducing the occurrence of total fertilization failure, intracytoplasmic sperm injection (ICSI) has ...
Alessio Paffoni, Marco Reschini, Valerio Pisaturo, Cristina Guarneri, Simone Palini, Paola Viganò   +5 more
doaj   +1 more source

Artificial Contraception is Associated With Increased Numbers of Induced Abortions [PDF]

, 2001
Since the sexual revolution, it has been a widely accepted fact that contraceptives have been a necessity for our society. They seem to be the best way to prevent unwanted pregnancies that would otherwise result from sexual unions between two people ...
Fernandez, Jose R., Pritchett, Angelique C.   +1 more
core   +2 more sources

Hysteroscopy for treating subfertility associated with suspected major uterine cavity abnormalities [PDF]

, 2015
Background : Observational studies suggest higher pregnancy rates after the hysteroscopic removal of endometrial polyps, submucous fibroids, uterine septum or intrauterine adhesions, which are detectable in 10% to 15% of women seeking treatment for ...
Bosteels, Jan, Broekmans, Frank J, D'Hooghe, Thomas M, Kasius, Jenneke, Mol, Ben Willem J, Weyers, Steven   +5 more
core   +5 more sources

Successful rescue activation of unfertilized oocytes with calcium ionophore (A23187) in a case of recurrent ICSI fertilization failure: A case report

Asian Pacific Journal of Reproduction
Rationale: This case report describes a couple with recurrent fertilization failure despite undergoing multiple cycles of intracytoplasmic sperm injection (ICSI).
Akash More, Vilas Chimurkar, Namrata Choudhary, Dipali More, Sanket Mahajan   +4 more
doaj   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Distinct germ-line genetic mutation patterns correlate with reproductive outcomes in ICSI patients: a pilot study

Frontiers in Genetics
BackgroundInfertility affects approximately 15% of couples worldwide, with male factors accounting for nearly 50% of cases. Intracytoplasmic sperm injection (ICSI) has become the standard treatment for male factor infertility, but outcomes vary ...
Ting Jiang, Yan Wang, Wandai Wu, Qianru Yang, Sixian Wu, Xueguang Zhang, Wenming Xu   +6 more
doaj   +1 more source

Analysis of 232 total fertilization failure cycles during intracytoplasmic sperm injection [PDF]

Iranian Journal of Reproductive Medicine, 2011
Background: The intracytoplasmic sperm injection procedure ending with total fertilization failure is very distressfull event for both the clinician and the patient.Objective: The aim of this study was to identify independent factors which could be used ...
Esma Sarikaya, Ozlem Gun Eryilmaz, Ruya Deveer, Muammer Dogan, Leyla Mollamahmutoglu   +4 more
doaj  

Successful live birth after rescue ICSI following failed fertilization

Journal of Human Reproductive Sciences, 2013
In a conventional IVF cycle unexpected complete fertilization failure may occur in 10-25% of infertile women. To overcome this barrier of fertilization failure, some investigators have suggested intracytoplasmic sperm injection (ICSI) on day 1 of an ...
Neeta Singh, Neena Malhotra, Unnati Shende, Abanish Tiwari   +3 more
doaj   +1 more source

PLCζ disruption with complete fertilization failure in normozoospermia [PDF]

Journal of Assisted Reproduction and Genetics, 2015
Intracytoplasmic sperm injection (ICSI) is widely used to achieve fertilization in the presence of severe male factor, resulting in high fertilization rates. Nevertheless, 1-3 % of couples experience complete fertilization failure after ICSI. When a male factor is identified, assisted oocyte activation (AOA) can help overcome fertilization failures ...
Mercè, Durban, Montserrat, Barragán, Marta, Colodron, Minerva, Ferrer-Buitrago, Petra, De Sutter, Björn, Heindryckx, Valérie, Vernaeve, Rita, Vassena   +7 more
openaire   +2 more sources