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https://www.readbyqxmd.com/read/27898267/combining-treatment-with-myo-inositol-and-d-chiro-inositol-40-1-is-effective-in-restoring-ovary-function-and-metabolic-balance-in-pcos-patients
#1
Giovanni Monastra, Vittorio Unfer, Abdel Halim Harrath, Mariano Bizzarri
Polycystic ovary syndrome (PCOS), a relevant cause of infertility, is a heterogeneous, endocrine disorder affecting up to 10-15% of women in reproductive age. Besides hyperandrogenism, insulin resistance (IR) plays a key role in such syndrome. Insulin-sensitizing drugs, such as Metformin, are effective in treating hyper-insulinemic PCOS patients. Recently, inositols - myo-inositol (MI) and D-chiro-inositol (DCI) - have shown to be an efficient and safe alternative in PCOS management, as both inositol isoforms are able to counteract downstream consequences of insulin resistance...
November 29, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27882052/myoinositol-and-d-chiro-inositol-in-improving-insulin-resistance-in-obese-male-children-preliminary-data
#2
Mario Mancini, Alice Andreassi, Michela Salvioni, Fiore Pelliccione, Gianna Mantellassi, Giuseppe Banderali
Myoinositol and D-chiro inositol, which are inositol isomers, have been shown to possess insulin-mimetic properties and to improve insulin resistance, especially in women with polycystic ovary syndrome. However, it has not been determined if this relationship exists also in children. Based on these previous findings, we hypothesized that inositol could be effective in improving insulin sensitivity in children with insulin resistance. To evaluate this hypothesis, we administered both inositol formulations before carrying out an oral glucose tolerance test (OGTT) in a group of obese insulin-resistant male children with high basal insulin levels and compared the values obtained with an OGTT previously conducted without inositol, in the same group, with unchanged BMI...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27866938/ovulation-induction-in-polycystic-ovary-syndrome-current-options
#3
REVIEW
Richard S Legro
There are a variety of effective treatment options to induce ovulation in women with polycystic ovary syndrome (PCOS). The most effective treatments are primarily reproductive and target the hypothalamic-pituitary-ovarian (HPO) axis. Letrozole, an aromatase inhibitor, is headed toward replacing clomiphene, a selective estrogen receptor modulator, as the first-choice option. Metabolic treatments likely work indirectly through the HPO axis. Many metabolic treatments have shown initial promise and later failed (troglitozone or d-chiro-inositol) or disappointed (metformin); further studies are needed of newer agents to treat type 2 diabetes...
September 21, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27843451/effects-of-inositol-s-in-women-with-pcos-a-systematic-review-of-randomized-controlled-trials
#4
REVIEW
Vittorio Unfer, John E Nestler, Zdravko A Kamenov, Nikos Prapas, Fabio Facchinetti
Polycystic ovary syndrome (PCOS) is a common endocrine disorder, with complex etiology and pathophysiology, which remains poorly understood. It affects about 5-10% of women of reproductive age who typically suffer from obesity, hyperandrogenism, ovarian dysfunction, and menstrual irregularity. Indeed, PCOS is the most common cause of anovulatory infertility in industrialized nations, and it is associated with insulin resistance, type 2 diabetes mellitus, and increased cardiovascular risk. Although insulin resistance is not included as a criterion for diagnosis, it is a critical pathological condition of PCOS...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27807448/the-effectiveness-of-myo-inositol-and-d-chiro-inositol-treatment-in-type-2-diabetes
#5
Basilio Pintaudi, Giacoma Di Vieste, Matteo Bonomo
Inositol has been used as a supplement in treating several pathologies such as PCOS, metabolic syndrome, and gestational diabetes. Both myo-inositol and its isomer d-chiro-inositol showed insulin mimetic effects in conditions of insulin resistance. Type 2 diabetes (T2DM) is a condition typically caused by insulin resistance. There is a lack of evidence of inositol use in T2DM. We evaluated the effectiveness and safety of myo-inositol and d-chiro-inositol treatment in T2DM. This was a pilot study involving a consecutive sample of patients with T2DM with suboptimal glycemic control (HbA1c 7...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27795706/inositol-treatment-and-art-outcomes-in-women-with-pcos
#6
REVIEW
Deepika Garg, Reshef Tal
Polycystic ovary syndrome (PCOS) affects 5-10% of women in reproductive age and is characterized by oligo/amenorrhea, androgen excess, insulin resistance, and typical polycystic ovarian morphology. It is the most common cause of infertility secondary to ovulatory dysfunction. The underlying etiology is still unknown but is believed to be multifactorial. Insulin-sensitizing compounds such as inositol, a B-complex vitamin, and its stereoisomers (myo-inositol and D-chiro-inositol) have been studied as an effective treatment of PCOS...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27753489/nanoarchitectonics-of-small-molecule-and-dna-for-ultrasensitive-detection-of-mercury
#7
Pandeeswar Makam, Satyaprasad P Senanayak, Thimmaiah Govindaraju
Reliable and ultrasensitive detection of mercury ions is of paramount importance for toxicology assessment, environmental protection and human health. Herein, we present a novel optoelectronic approach based on nanoachitectonics of small molecule templated DNA system that consists of an adenine (A) conjugated small organic semiconductor (BNA) and deoxyribo-oligothymidine (dTn). This mutually templated dynamic chiral co-assembly system (BNAn-dTn) with tunable chiroptical, morphological and electrical properties is tapped in to enable ultra-sensitive and selective detection of inorganic and organometallic mercury in water...
October 18, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27730087/the-inositols-and-polycystic-ovary-syndrome
#8
Bharti Kalra, Sanjay Kalra, J B Sharma
This review describes the rationale, biochemical, and clinical data related to the use of inositols in polycystic ovary syndrome (PCOS). It covers studies related to the mechanism of action of myo-inositol and D-chiro-inositol (MDI), with randomized controlled trials conducted in women with PCOS, and utilizes these data to suggest pragmatic indications and methods for using MDI combination in PCOS. Rationally crafted inositol combinations have a potential role to play in maintaining metabolic, endocrine, and reproductive health in women with PCOS...
September 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27721826/effect-on-insulin-stimulated-release-of-d-chiro-inositol-containing-inositolphosphoglycan-mediator-during-weight-loss-in-obese-women-with-and-without-polycystic-ovary-syndrome
#9
Kai I Cheang, Sakita N Sistrun, Kelley S Morel, John E Nestler
Background. A deficiency of D-chiro-inositol-inositolphosphoglycan mediator (DCI-IPG) may contribute to insulin resistance in polycystic ovary syndrome (PCOS). Whether the relationship between impaired DCI-IPG release and insulin resistance is specific to PCOS rather than obesity is unknown. We assessed insulin-released DCI-IPG and its relationship to insulin sensitivity at baseline and after weight loss in obese women with and without PCOS. Methods. Obese PCOS (n = 16) and normal (n = 15) women underwent 8 weeks of a hypocaloric diet...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27717596/inositol-as-putative-integrative-treatment-for-pcos
#10
REVIEW
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
https://www.readbyqxmd.com/read/27595157/inositol-and-human-reproduction-from-cellular-metabolism-to-clinical-use
#11
Ewa M Milewska, Adam Czyzyk, Blazej Meczekalski, Alessandro D Genazzani
Inositol is an organic compound of high biological importance that is widely distributed in nature. It belongs to the sugar family and is mainly represented by its two dominant stereoisomers: myo-inositol and D-chiro-inositol that are found in the organism in the physiological serum ratio 40:1. Inositol and its derivatives are important components of the structural phospholipids of the cell membranes and are precursors of the second messengers of many metabolic pathways. A high concentration of myoinositol is found in the follicular fluid and in semen...
September 5, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27579037/metabolism-and-ovarian-function-in-pcos-women-a-therapeutic-approach-with-inositols
#12
REVIEW
Antonio Simone Laganà, Paola Rossetti, Massimo Buscema, Sandro La Vignera, Rosita Angela Condorelli, Giuseppe Gullo, Roberta Granese, Onofrio Triolo
Polycystic ovary syndrome (PCOS) is characterized by chronical anovulation and hyperandrogenism which may be present in a different degree of severity. Insulin-resistance and hyperinsulinemia are the main physiopathological basis of this syndrome and the failure of inositol-mediated signaling may concur to them. Myo (MI) and D-chiro-inositol (DCI), the most studied inositol isoforms, are classified as insulin sensitizers. In form of glycans, DCI-phosphoglycan and MI-phosphoglycan control key enzymes were involved in glucose and lipid metabolism...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27564432/programmable-extreme-chirality-in-the-visible-by-helix-shaped-metamaterial-platform
#13
Marco Esposito, Vittorianna Tasco, Francesco Todisco, Massimo Cuscunà, Alessio Benedetti, Mario Scuderi, Giuseppe Nicotra, Adriana Passaseo
The capability to fully control the chiro-optical properties of metamaterials in the visible range enables a number of applications from integrated photonics to life science. To achieve this goal, a simultaneous control over complex spatial and localized structuring as well as material composition at the nanoscale is required. Here, we demonstrate how circular dichroic bands and optical rotation can be effectively and independently tailored throughout the visible regime as a function of the fundamental meta-atoms properties and of their three dimensional architecture in a the helix-shaped metamaterials...
September 14, 2016: Nano Letters
https://www.readbyqxmd.com/read/27510483/current-insights-into-inositol-isoforms-mediterranean-and-ketogenic-diets-for-polycystic-ovary-syndrome-from-bench-to-bedside
#14
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...
2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27493664/a-combined-therapy-with-myo-inositol-and-d-chiro-inositol-improves-endocrine-parameters-and-insulin-resistance-in-pcos-young-overweight-women
#15
Elena Benelli, Scilla Del Ghianda, Caterina Di Cosmo, Massimo Tonacchera
Introduction. We evaluated the effects of a therapy that combines myo-inositol (MI) and D-chiro-inositol (DCI) in young overweight women affected by polycystic ovary syndrome (PCOS), characterized by oligo- or anovulation and hyperandrogenism, correlated to insulin resistance. Methods. We enrolled 46 patients affected by PCOS and, randomly, we assigned them to two groups, A and B, treated, respectively, with the association of MI plus DCI, in a 40 : 1 ratio, or with placebo (folic acid) for six months. Thus, we analyzed pretreatment and posttreatment FSH, LH, 17-beta-Estradiol, Sex Hormone Binding Globulin, androstenedione, free testosterone, dehydroepiandrosterone sulphate, HOMA index, and fasting glucose and insulin...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27428505/dna-scaffolds-for-the-dictated-assembly-of-left-right-handed-plasmonic-au-np-helices-with-programmed-chiro-optical-properties
#16
Alessandro Cecconello, Jason S Kahn, Chun-Hua Lu, Larousse Khosravi Khorashad, Alexander O Govorov, Itamar Willner
Within the broad interest of assembling chiral left- and right-handed helices of plasmonic nanoparticles (NPs), we introduce the DNA-guided organization of left- or right-handed plasmonic Au NPs on DNA scaffolds. The method involves the self-assembly of stacked 12 DNA quasi-rings interlinked by 30 staple-strands. By the functionalization of one group of staple units with programmed tether-nucleic acid strands and additional staple elements with long nucleic acid chains, acting as promoter strands, the promoter-guided assembly of barrels modified with 12 left- or right-handed tethers is achieved...
August 10, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27410479/synthesis-and-biological-activities-of-d-chiro-inositol-analogues-with-insulin-like-actions
#17
P M Rendle, F Kassibawi, K A Johnston, J B Hart, S A Cameron, A Falshaw, G F Painter, K M Loomes
d-chiro-inositol (DCI, 1) evokes therapeutic actions in diabetes and insulin resistance but has sub-optimal pharmacokinetic profiles. To investigate what positions on the DCI cyclohexanol ring may be amenable to modification to improve pharmaceutical formulations, a series of analogues based on DCI were synthesised. These compounds were then evaluated for their ability to stimulate glucose transport using 3T3-L1 adipocytes as a model system. Positional analyses indicate that the hydroxyl group at position 1 is not essential for activity and can be modified without affecting glucose uptake...
October 21, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27373225/ice-nucleation-of-an-insect-lipoprotein-ice-nucleator-lpin-correlates-with-retardation-of-the-hydrogen-bond-dynamics-at-the-myo-inositol-ring
#18
Alexander Bäumer, John G Duman, Martina Havenith
Remarkably little is known about the mechanism of action of ice nucleation proteins (INPs), although their ability to trigger ice nucleation could be used in a broad variety of applications. We present CD measurements of an insect lipoprotein ice nucleator (LPIN) which show that the lipoproteins consist of a high amount of β-structures (35%). Terahertz absorption spectroscopy is used to probe the influence of the LPIN on the H-bond network dynamics. We observe a small, but significant THz excess, as an indication of an influence on the H-bond network dynamics...
July 28, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27255472/the-effect-of-combined-inositol-supplementation-on-maternal-metabolic-profile-in-pregnancies-complicated-by%C3%A2-metabolic-syndrome-and-obesity
#19
Francesca Ferrari, Fabio Facchinetti, Alejandra E Ontiveros, Robyn P Roberts, Mia M Saade, Sean C Blackwell, Baha M Sibai, Jerrie S Refuerzo, Monica Longo
BACKGROUND: Myoinositol and D-chiroinositol improve insulin resistance in women with obesity and gestational diabetes and in postmenopausal women with metabolic syndrome. We previously reported that offspring born to hypertensive dams lacking endothelial nitric oxide synthase and fed a high-fat diet develop metabolic-like syndrome phenotype. OBJECTIVE: The objective of the study was to investigate the effect of a mixture of myoinositol/D-chiroinositol supplementation during pregnancy on the maternal metabolic profile in pregnancies complicated by the metabolic-like syndrome and obesity using a pregnant mouse model...
October 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27212205/hypoglycemic-effect-of-d-chiro-inositol-in-type-2-diabetes-mellitus-rats-through-the-pi3k-akt-signaling-pathway
#20
Yun-Feng Gao, Meng-Na Zhang, Tian-Xin Wang, Tian-Chen Wu, Ru-Dan Ai, Ze-Sheng Zhang
In this investigation, a model of type 2 diabetes mellitus (T2DM) was used on Sprague-Dawley (SD) rats to clarify more details of the mechanism in the therapy of T2DM. D-chiro-inositol (DCI) was administrated to the diabetic rats as two doses [30, 60 mg/(kg·body weight·day)]. The biochemical indices revealed that DCI had a positive effect on hypoglycemic activity and promoted the glycogen synthesis. The rats in DCI high-dosage group had a blood glucose reduction rate of 21.5% after 5 weeks of treatment, and had insulin content in serum about 15...
September 15, 2016: Molecular and Cellular Endocrinology
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