 He was appointed the Jagiellonian University Rector's Plenipotentiary for Science and Development in the Medical College for the term 2016–2020.Sanak authored or co-authored more than 230 original research papers in international peer reviewed journals.He was the author of the discovery of the genetic polymorphism of the promoter region of the gene of the leukotriene C4 synthase; and he participated in establishing the relationship between genetic overexpression caused by the presence of the altered allele of that gene and the overproduction of cysteinyl leukotrienes in bronchial asthma.