oren4dLivechat OREN4D. What would you like to report to team? Spam, Malware or Phishing. Sexually explicit. Violent or Dangerous. Hate speech, Harassment or Bullying.LEADER. Gertraud Orend had studied Genetics, Biochmemistry, Pharmacology and Organic Chemistry and is currently leading the OREND-Tumor MicroEnvironment Group in an INSERM unit in Strasbourg.