Galectin-3 belongs to a family of soluble glycan-binding proteins, which are increasingly recognized as modulators of pregnancy-associated processes, including proper placental development. Gestational hypertension and preeclampsia are significant complications of pregnancy, affecting millions of women annually. Despite their prevalence, the underlying pathophysiological mechanisms remain poorly understood. Several theories have been proposed, including inflammation, placental insufficiency, disturbed placental invasion, and angiogenesis. The Scopus and PubMed/MEDLINE databases were utilized until the end of May 2024. In total, 11 articles with 1011 patients, with 558 in the control group and 453 in the preeclampsia group, were included. Seven articles investigated the expression of galectin-3 (Gal-3) in placental tissue samples, eight studies calculated the serum levels of Gal-3 in maternal blood samples, while one study referred to the possible correlation of galectin-3 levels in umbilical cord blood. The results were inconsistent in both the placental tissue and maternal serum; Gal-3 placental expression was found to be statistically increased in five studies compared to that in women without gestational hypertensive disorders, while two studies either mentioned decreased expression or no difference. Similarly, the Gal-3 maternal serum levels, compared to those in women without gestational hypertensive disorders, were found to be statistically increased in five studies, while three studies did not find any statistical difference. Gal-3 can play a crucial role in the pathogenesis of preeclampsia, and its expression is influenced by gestational age and placental insufficiency. A further investigation ought to be conducted to enlighten the correlation of Gal-3 with gestational hypertension and preeclampsia development.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11354766PMC
http://dx.doi.org/10.3390/jcm13164636DOI Listing

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