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diabetes pcos myo-inositol

Alessandro D Genazzani
Studies over the last decade have demonstrated that some polycystic ovary syndrome (PCOS) patients have abnormal insulin sensitivity (insulin resistance), independently from being overweight or obese. This induces the risk of developing type 2 diabetes in such PCOS patients. The use of insulin sensitizers (i.e. metformin), reduces such metabolic, and most hormonal, impairments. As metformin often induces side effects, new integrative strategies have been proposed to treat insulin resistance, such as the use of inositols...
September 16, 2016: Reproductive Biomedicine Online
Giovanna Muscogiuri, Stefano Palomba, Antonio Simone Laganà, Francesco Orio
A growing body of research is currently focused on the role of inositol isomers and in particular myo-inositol (MYO-INS) and D-chiroinositol (DCI) in the treatment of insulin resistance states. Both isomers have been shown to exert insulin-mimetic action and to lower postprandial glucose. Further, insulin resistance-related diseases were associated to derangements in inositol metabolism. Thus, the aim of this review is to provide current evidence on the potential benefits of inositol isomers (MYO-INS and DCI) in the treatment of disease associated to insulin resistance such as polycystic ovary syndrome (PCOS), gestational diabetes, and metabolic syndrome...
2016: International Journal of Endocrinology
Giovanna Muscogiuri, Stefano Palomba, Antonio Simone Laganà, Francesco Orio
BACKGROUND: Polycystic ovary syndrome (PCOS) is a complex syndrome characterized by reproductive and metabolic implications. Lifestyle changes, such as diet and exercise, are considered first-line treatment for women affected by PCOS. Pharmacologic treatments target the hormonal and metabolic dysregulations associated to the disease such as insulin resistance, anovulation, hirsutism and menstrual irregularities. OBJECTIVE: To focus on the role of inositol isoforms, as well as Mediterranean and ketogenic diets, as possible therapeutic strategies in PCOS women...
July 20, 2016: Current Pharmaceutical Design
Salvatore Benvenga, Alessandro Antonelli
Myo-inositol and phosphatidylinositol(s) play a pivotal function in many metabolic pathways that, if impaired, impact unfavorably on human health. This review analyzes several experimental and clinical investigations regarding the involvement of this class of molecules in physiological and pathological situations, with a major focus on thyroid. Central issues are the relationship between phosphatidylinositol and thyrotropin (TSH) signaling on one hand, and phosphatydylinositol and autoimmunity on the other hand...
June 18, 2016: Reviews in Endocrine & Metabolic Disorders
Cristiana Paul, Antonio Simone Laganà, Paolo Maniglio, Onofrio Triolo, David M Brady
The incidence of metabolic syndrome (MetS), type II diabetes (T2D) and polycystic ovarian syndrome (PCOS) has been progressively increasing. Insulin resistance (InsR) seems to play a key role in a majority of phenotypes of these conditions, altering metabolic homeostasis, within muscle, liver, adipose and other tissues. Hyperinsulinemia is often associated with InsR and causes hormonal imbalances especially within ovaries and adrenals. Inositol is a polyalcohol, naturally occurring as nine stereoisomers, including D-chiro-inositol (DCI) and myo-inositol (MI), which have prominent roles in the metabolism of glucose and free fatty acids...
June 2016: Gynecological Endocrinology
V Cappelli, A Di Sabatino, M C Musacchio, V De Leo
AIM: Polycystic ovary syndrome (PCOS) is a multifactorial pathology affecting 7-10% of the female population. Usually occurs with oligo/amenorrhea, anovulation, hirsutism, polycystic ovaries. Hyperinsulinemia associated with insulin resistance has been causally linked to all features of the syndrome. It has been demonstrated that by reducing hyperinsulinemia, in particular with the administration of metformin, insulin-lowering agents might improve endocrine and reproductive abnormalities in PCOS patients...
August 2013: Minerva Ginecologica
L Whiting, R N Danaher, K Ruggiero, C-C Lee, C Chaussade, T Mulvey, A Phillips, K M Loomes
D-chiro-Inositol (DCI) is a cyclic sugar alcohol that evokes both antidiabetic and insulin sensitizing effects. Pharmacological administration of DCI has been shown to lower blood glucose in rat models of diabetes mellitus and enhance insulin sensitivity in humans with polycystic ovary syndrome (PCOS). We hypothesised that the antidiabetic effects of DCI could be due to inhibition of hepatic glucose output (HGO). To test this hypothesis, we perfused isolated rat livers either with buffer, myo-inositol, DCI, or insulin, and investigated their respective effects on the stimulation of HGO by epinephrine...
May 2013: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
R D'Anna, V Di Benedetto, P Rizzo, E Raffone, M L Interdonato, F Corrado, A Di Benedetto
To evaluate retrospectively the prevalence of gestational diabetes (GD) in pregnancies obtained with myo-inositol administration in women with polycystic ovary syndrome. A total of 98 pregnancies in PCOS women obtained in a 3-year period, either with myo-inositol (n. 54), or with metformin (n. 44) were considered. While myo-inositol was assumed through the whole pregnancy, the group of women treated with metformin stopped the drug assumption after pregnancy diagnosis, and was considered as a control group. After having eliminated cases of miscarriages and twin pregnancies, a definitive number of 46 women in the myo-inositol group and 37 in the control group was taken in account to be retrospectively evaluated...
June 2012: Gynecological Endocrinology
J Larner, G Allan, C Kessler, P Reamer, R Gunn, L C Huang
While much work remains, the evidence has become strong that IPG generation following insulin action is a significant signaling mechanism. A considerable body of data has established IPG release by insulin and other growth factors from cell membranes, cells and in human blood and muscle biopsies in vivo. Two separate IPG species containing D-chiro-inositol and myo-inositol have been separated by ion exchange. These IPGs have separate actions in vitro and are both active as insulin surrogates in vivo. A deficiency of the chiro-inositol system has been demonstrated in urine and tissues in humans and directly related to insulin resistance...
1998: Journal of Basic and Clinical Physiology and Pharmacology
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