J
John M. Twigt
Researcher at Erasmus University Rotterdam
Publications - 10
Citations - 1113
John M. Twigt is an academic researcher from Erasmus University Rotterdam. The author has contributed to research in topics: Follicular phase & Semen analysis. The author has an hindex of 8, co-authored 10 publications receiving 928 citations. Previous affiliations of John M. Twigt include Erasmus University Medical Center.
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Journal ArticleDOI
BMI in relation to sperm count: an updated systematic review and collaborative meta-analysis
Nathalie Sermondade,Céline Faure,Léopold Fezeu,A G Shayeb,Jens Peter Bonde,Tina Kold Jensen,M. van Wely,Jan Tan Cao,A. C. Martini,M Eskandar,Jorge E. Chavarro,Jorge E. Chavarro,S Koloszar,John M. Twigt,Cecilia Høst Ramlau-Hansen,Edson Borges,Francesco Lotti,Régine P.M. Steegers-Theunissen,B Zorn,Alex J. Polotsky,S. La Vignera,Brenda Eskenazi,Kelton Tremellen,E V Magnusdottir,I Fejes,Serge Hercberg,Rachel Levy,Sébastien Czernichow +27 more
TL;DR: Overweight and obesity were associated with an increased prevalence of azoospermia or oligozoospermia, and whether weight normalization could improve sperm parameters should be evaluated further.
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The periconceptional period, reproduction and long-term health of offspring: the importance of one-carbon metabolism
TL;DR: Evidence presented indicates that parental nutrition and other lifestyle factors during the periconceptional period can affect reproductive performance via 1-C metabolic pathways and provides opportunities for treatment and prevention of reproductive failures and future non-communicable diseases.
Journal ArticleDOI
Body mass index and central adiposity are associated with sperm quality in men of subfertile couples
Fatima Hammiche,Joop S.E. Laven,John M. Twigt,Willem P. A. Boellaard,Eric A.P. Steegers,Régine P.M. Steegers-Theunissen +5 more
TL;DR: This study shows that in particular, sperm concentration and total motile sperm count in men of subfertile couples are detrimentally affected by a high BMI and central adiposity.
Journal ArticleDOI
The preconception diet is associated with the chance of ongoing pregnancy in women undergoing IVF/ICSI treatment
John M. Twigt,M. E C Bolhuis,Eric A. P. Steegers,Fatima Hammiche,W. van Inzen,Joop S.E. Laven,Régine P.M. Steegers-Theunissen +6 more
TL;DR: It is shown that increasing adherence to Dutch dietary recommendations in women undergoing IVF/ICSI treatment increases the chance of ongoing pregnancy and warrant further confirmation in couples achieving a spontaneous pregnancy and in randomized controlled trials.
Journal ArticleDOI
Proteomic analysis of the microenvironment of developing oocytes.
TL;DR: The aim is to define a set of FF protein markers, which could predict oocyte quality, which are involved in coagulation‐ and immune‐response pathways.