27 - 29. Mai 2020 Vitamin D in Prevention and Therapy & Biologic Effects of Light


Joint international Symposium

Vitamin D in Prevention and Therapy
on May 27-29, 2020
Biologic Effects of Light
on May 27-29, 2020

Schlossberg Hotel
Homburg/ Saar, Germany

official Website:


Program Download:




(...from official website)

Dear Participants, Colleagues and Friends!
On behalf of the scientific committee, it is a pleasure to invite you cordially to our next Joint International Symposium Vitamin D in Prevention and Therapy and Biologic Effects of Light that we will organize on May 27-29, 2020 in Homburg (Saar), Germany.
Recently, enormous scientific progress has been made on these closely related topics.
  • Results from laboratory and clinical investigations have now unravelled many of the molecular mechanisms that mediate the biologic effects both of vitamin D an optical radiation, thereby leading to promising new concepts for the prevention and treatment of cancer and many other diseases.
  • However, our increasing knowledge about the impact of vitamin D and optical radiation for human health has opened many new unresolved questions that are at present controversially discussed in the scientific community.
  • This meeting is specially designed to give scientists and clinicians an update on these topics and insights into the latest developments in these intriguing research areas.
  • To reach this goal, lectures will be held by leading experts in the field who will present "both sides of the coin".
  • Penary and keynote lectures, as well as round table discussions and poster presentations, will give an update on carefully selected "hot topics", including vitamin D, skin cancer prevention, risks and benefits of sunscreens, UVA radiation and cellular homeostasis, photocarcinogenesis, circadian clock, and what genome wide association studies tell us about sun exposure and melanoma aetiology.
  • You are cordially invited to join this meeting.

We hope we will see you next May in Homburg.

Jörg Reichrath
Michael Friedrich
Michael F. Holick
Thomas Vogt


(vorläufiges Programm)

Vitamin D in Prevention and Therapy

8.30 AM – 5.00 PM
I. Historic and Future Perspectives of Vitamin D
II. Molecular Biology of Vitamin D
- Vitamin D receptor mediated gene regulation: what is new?
- Aryl hydrocarbon receptor, RORs, CYP11A1 and beyond
III. Vitamin D in Prevention and Therapy
- What is the optimal vitamin D status?
- Results of epidemiological and clinical studies
V. Synthesis and Analysis of Vitamin D Metabolites
- Non-classical vitamin D metabolites: new emerging biological functions of: Circadian clock – Blood analysis of vitamin D metabolites: pitfals and perspectives
Thursday, May 28
8.00 AM – 1.00 PM
VI. Controversies in Medicine
- Vitamin D deficiency: effect on cancer, cardio- vascular disease, mortality or not?
VII. Vitamin D Analogs in Cancer Treatment
- The impact of vitamin D status for outcome
VIII. Round Table Discussion
- Challenge and promise: what is the impact of vitamin D status for disease prevention and therapy and what are the consequences for health authorities/campaigns?

Biology of Light

Health Effects of Optical Radiation (I)
- Photobiology of Vitamin D, photoreceptors, circadian clock, and beyond
Controversies in Photomedicine (I)
- Hydrochlorothiazid and Skin Cancer Risk: what is the evidence and clinical consequences?
Friday, May 29
   Jörg Reichrath
Michael F. Holick
8.30 AM – 5.00 PM
II. Health Effects of Optical Radiation (II)
- Effects on skin microbiome and immune system
III. Photoprotection, Photodermatoses and Skin Cancer Prevention
- Melanin, afamelatonid, photolyase and sunscreen
IV. Controversies in Photomedicine (II)
- Sunscreens for Skin Cancer Prevention: are we ignoring the risks?
V. UV-Radiation and Skin Cancer (I)
- DNA repair, free radicals, and Xeroderma pigmentosum
- Immune system and cutaneous papillomavirus infection: new concepts
VI. Controversies in Photomedicine (III)
- Solarium Use and Melanoma Risk: what is the Evidence?
VII. Photodynamic Therapy (PDT) and More: New Applications of optical Radiation in Medicine
VII. Round Table Discussion