Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.

What Was Tested

The paper reports a study of Vitamin D, K2, Magnesium and Zinc, published as a randomized controlled trial.

The aim of the present randomised double-blind three-arm controlled trial was to correlate genuine epidermal wound healing with key proteins and topical zinc treatment in humans.

Why It Was Studied

Reepithelialisation is fundamental to wound healing, but their current understanding largely relies on cellular and animal studies.

All wounds with perilesional skin were processed for automatic immunostaining of paraffin tissue sections with monoclonal antibodies against Ki-67, metallothionein (MT) and matrix metalloproteinase (MMP)-1.

Who Took Part

According to the abstract, 30 volunteers were involved.

How the Study Was Run

The design is described as randomized, double-blind and placebo-controlled.

Random assignment meant chance, not the researchers, decided who got Vitamin D, K2, Magnesium and Zinc and who got the comparison, which limits bias.

Neither the volunteers nor the staff measuring them knew who was on Vitamin D, K2, Magnesium and Zinc, so expectations could not easily colour the readings.

Some volunteers received a placebo instead of Vitamin D, K2, Magnesium and Zinc, giving a reference point.

What Was Measured

PubMed files the paper under topics including Epidermis, Immunohistochemistry, Ki-67 Antigen, Matrix Metalloproteinase 1, Metallothionein, Wound Healing and Zinc Sulfate.

Author keywords: Extracellular matrix, Keratinocyte biology and Metalloproteinases.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc in 30 volunteers.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

The publication is from 2021 (European journal of cell biology), a journal based in Germany.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.