Erratum to: Effects of nutraceuticals on quality of life and sexual function of perimenopausal women

Soy isoflavone-specific biotransformation product S-equol in the colon: physiological functions, transformation mechanisms, and metabolic regulatory pathways

Epidemiological data suggest that regular intake of soy isoflavones may reduce the incidence of estrogen-dependent and aging-associated disorders. Equol is a metabolite of soy isoflavone (SI) produced by specific gut microbiota and has many beneficial effects on human health due to its higher biological activity compared to SI. However, only 1/3 to 1/2 of humans are able to produce equol in the body, which means that not many people can fully benefit from SI. This review summarizes the recent advances in equol research, focusing on the chemical properties, physiological functions, conversion mechanisms in vitro and vivo, and metabolic regulatory pathways affecting S-equol production. Advanced experimental designs and possible techniques in future research plan are also fully discussed. Furthermore, this review provides a fundamental basis for researchers in the field to understand individual differences in S-equol production, the efficiency of metabolic conversion of S-equol, and fermentation production of S-equol in vitro.

Sexual function and quality of life of patients affected by ovarian cancer

INTRODUCTION

The sexual function (SF) in patients affected by malignancies represents an important aspect influencing the quality of life (QoL). The most frequent symptoms reported are the decreased sexual desire, dyspareunia, and/or problems with arousal or achieving orgasm. The present study is aimed at analyzing the available scientific evidence regarding the QoL and especially SF of patients affected by ovarian cancer who underwent surgical and medical treatment.

EVIDENCE ACQUISITION

A preliminary research was conducted using Pubmed database with specific keywords combinations regarding SF, QoL and ovarian cancer. The principal findings considered in the present review were: the study design, the number of patients included in each study, the information about the malignancy (histology and stage of disease), the questionnaires administered and the principal findings concerning SF and QoL.

EVIDENCE SYNTESIS

The studies selected were 5 prospective series and 3 case control cross-sectional studies. The scores used were focused on SF, QOL, fatigue and psychological aspects. All studies reported a decreased SF and QOL. Different factors coexist in the influence on outcomes such as physical, hormonal, psychological, self body image, and mechanic outcomes.

CONCLUSIONS

SF represents a fundamental aspect strictly related with QoL. Patients with ovarian cancer (as well all oncological patients) experience a reduction in their SF after diagnosis of malignancy and they should receive adequate counseling regarding this aspect.