Table 1.

Search strategy of the selected databases.

PubMed
Search hits: 82
(“picrocrocin” [Supplementary Concept] OR “picrocrocin” [All Fields] OR (“trans sodium crocetinate” [Supplementary Concept] OR “trans sodium crocetinate” [All Fields] OR “crocetin” [All Fields]) OR (“safranal” [Supplementary Concept] OR “safranal” [All Fields]) OR (“crocus” [MeSH Terms] OR “crocus” [All Fields] OR “saffron” [All Fields]) OR “Crocus sativus” [All Fields] OR (“crocin” [Supplementary Concept] OR “crocin” [All Fields] OR “crocin s” [All Fields] OR “crocins” [All Fields])) AND (“Renal function” [All Fields] OR “Renal function test”[All Fields] OR “Kidney function”[All Fields] OR “Kidney function test”[All Fields] OR “Blood urea nitrogen”[All Fields] OR (“creatinin” [All Fields] OR “creatinine” [MeSH Terms] OR “creatinine” [All Fields] OR “creatinines” [All Fields]) OR “BUN” [All Fields] OR (“urea” [MeSH Terms] OR “urea” [All Fields]))
Scopus
Search hits: 121
((TITLE-ABS-KEY (picrocrocin) OR TITLE-ABS-KEY (crocetin) OR TITLE-ABS-KEY (safranal) OR TITLE-ABS-KEY (saffron) OR TITLE-ABS-KEY (“Crocus sativus”) OR TITLE-ABS-KEY (crocin))) AND ((TITLE-ABS-KEY (“Renal function”) OR TITLE-ABS-KEY (“Renal function test”) OR TITLE-ABS-KEY (“Kidney function”) OR TITLE-ABS-KEY (“Kidney function test”) OR TITLE-ABS-KEY (“Blood urea nitrogen”) OR TITLE-ABS-KEY (Creatinine) OR TITLE-ABS-KEY (bun) OR TITLE-ABS-KEY (urea)))
Web of Science
Search hits: 100
(“Renal function” (Topic) or “Renal function test” (Topic) or “Kidney function” (Topic) or “Kidney function test” (Topic) or “Blood urea nitrogen” (Topic) or Creatinine (Topic) or bun (Topic) or cr (Topic)) AND ((picrocrocin (Topic) or crocetin (Topic) or safranal (Topic) or saffron (Topic) or Crocus sativus (Topic) or crocin (Topic)))