Compendium of the most significant studies with reference to properties, intake, effects.

Torretta S, Scagliola A, Ricci L, Mainini F, Di Marco S, Cuccovillo I, Kajaste-Rudnitski A, Sumpton D, Ryan KM, Cardaci S. D-mannose suppresses macrophage IL-1β production. Nat Commun. 2020 Dec 11;11(1):6343. doi: 10.1038/s41467-020-20164-6. 

Abstract. Here, we show that D-mannose suppresses LPS-induced macrophage activation by impairing IL-1β production. In vivo, mannose administration improves survival in a mouse model of LPS-induced endotoxemia as well as decreases progression in a mouse model of DSS-induced colitis. 

Domenici L, Monti M, Bracchi C, Giorgini M, Colagiovanni V, Muzii L, Benedetti Panici P. D-mannose: a promising support for acute urinary tract infections in women. A pilot study. Eur Rev Med Pharmacol Sci. 2016 Jul;20(13):2920-5. 

Abstract. The results of this study suggest that D-mannose can be an effective aid in acute cystitis management and also a successful prophylactic agent in a selected population; however, more studies will certainly be needed to confirm the results of our pilot study. 

Pugliese D, Acampora A, Porreca A, Schips L, Cindolo L. Effectiveness of a novel oral combination of D-Mannose, pomegranate extract, prebiotics and probiotics in the treatment of acute cystitis in women. Arch Ital Urol Androl. 2020 Apr 6;92(1):34-38. doi: 10.4081/aiua.2020.1.34.

Abstract. Our study suggests that the action of the compounds, administered in this new combination, could help in an effective management of symptoms of acute cystitis in women, without antibiotics, in a wide majority of the cases. Lack of microbiological assessment is a clear limitation of the study. Moreover, lack of a control group is another important limitation. Finally, hyperhydration could have been a confounding factor in interpretation of results.

Wang J, Jalali Motlagh N, Wang C, Wojtkiewicz GR, Schmidt S, Chau C, Narsimhan R, Kullenberg EG, Zhu C, Linnoila J, Yao Z, Chen JW. d-mannose suppresses oxidative response and blocks phagocytosis in experimental neuroinflammation. Proc Natl Acad Sci U S A. 2021 Nov 2;118(44):e2107663118. doi: 10.1073/pnas.2107663118.

Abstract. Inflammation drives the pathology of many neurological diseases. d-mannose has been found to exert an antiinflammatory effect in peripheral diseases, but its effects on neuroinflammation and inflammatory cells in the central nervous system have not been studied. We aimed to determine the effects of d-mannose on key macrophage/microglial functions-oxidative stress and phagocytosis.

Deng YL, Liu R, Cai ZD, Han ZD, Feng YF, Cai SH, Chen QB, Zhu JG, Zhong WD. Mannose inhibits the growth of prostate cancer through a mitochondrial mechanism. Asian J Androl. 2022 Feb 4. doi: 10.4103/aja2021104.

Abstract. In this study, we demonstrated that mannose inhibits the proliferation and promotes the apoptosis of PCa cells in vitro, and mannose was observed to have an anticancer effect in mice without harming their health.

Nakagawa Y, Ito Y. Mannose-binding analysis and biological application of pradimicins. Proc Jpn Acad Ser B Phys Biol Sci. 2022;98(1):15-29. doi: 10.2183/pjab.98.002.

Abstract. This article first outlines the challenges in studying Man-binding mechanisms and structural modifications of Pradimicins (PRMs) , and then describes our approach to address them. We also present our recent attempts toward the development of PRM-based research tools.