In vitro, molecular-level investigation of the effect of a new Turkish herbal preparation on HUVEC, and analysis of its phenolic compounds
The abstract does not name Zudax. It describes the material studied as “a new Turkish herbal preparation”, and it carries no funding or conflict-of-interest statement.
What was studied
An ethanolic extract of a herbal preparation made from plant parts including Turkish green tea leaf, cinnamon bark, mint, thyme and black seed. The extract, diluted by half, was applied for set periods to human umbilical vein endothelial cells (HUVEC), a human cell model widely used in research, grown in the laboratory. The abstract does not give the exposure times or final concentrations.
How it was studied
The researchers compared the proteins in treated and untreated cells by two-dimensional gel electrophoresis and identified those that differed by mass spectrometry and bioinformatic analysis. They assessed whether the extract was toxic to the cells (MTT assay), stained the cells for VEGF, a signalling protein, and analysed the extract’s phenolic compounds by HPLC against selected reference standards.
What the authors report
Four proteins differed between treated and untreated cells: calcium-independent phospholipase A2-gamma, SH2B adapter protein 1, mitochondrial uncoupling protein 2 and hyaluronan and proteoglycan link protein 4. VEGF expression also differed between the groups. The abstract does not give the direction or size of these differences, or any statistics, and it does not report the result of the toxicity test. HPLC suggested that the extract may contain phenolic acids, such as syringic and chlorogenic acids, in low amounts.
Limits
Our note: the work was done on cells grown in a dish; the preparation was not given to people or animals, and it was not tested in the form in which it is consumed. The authors write that the extract may contain substances other than phenolic compounds, that the synergistic effects of all its components most likely play a role in its effect on the cells, and that comprehensive in vitro and in vivo studies would describe the preparation’s effects and content in more detail.
Özel Demiralp FD, Karahisar Turan S, İğci N, Akar N. Yeni bir Türk bitkisel preparatın HUVEC üzerindeki etkisinin in vitro olarak moleküler düzeyde araştırılması ve fenolik bileşen analizi [poster abstract P-250, ref. 641]. In: 48. Ulusal Hematoloji Kongresi, 1–5 Kasım 2022, Antalya — Konuşma Metinleri ve Bildiri Özetleri. Türk Hematoloji Derneği (Turkish Society of Hematology); 2022. p. 388. The English title above is our translation; the full abstract book is in the Documents section below.