What Is Inositol? Other Names: Cyclohexitol, Dambrose, Vitamin B8
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What is Inositol?
This post was written with Consensus AI Academic Search Engine – please read our Disclaimer at the end of this article. Inositol is a naturally occurring sugar alcohol that plays a crucial role in various biological processes. It exists in multiple forms, with myo-inositol (MI) and D-chiro-inositol (DCI) being the most prominent. These compounds are involved in cellular signaling, metabolic regulation, and have therapeutic potential in several medical conditions. Other names include: 1,2,3,4,5,6-Cyclohexanehexol, 1,2,5/3,4,6-inositol, (1S)-inositol, (1S)-1,2,4/3,5,6-inositol, Antialopecia Factor, (+)-chiroinositol, cis-1,2,3,5-trans-4,6-Cyclohexanehexol, Cyclohexitol, Dambrose, D-chiro-inositol, D-Myo-Inositol, Facteur Anti-alopécique, Hexahydroxycyclohexane, Inose, Inosite, Inositol Monophosphate, Lipositol, Meso-Inositol, Méso-Inositol, Monophosphate d’Inositol, Mouse Antialopecia Factor, Myo-Inositol, Vitamin B8, Vitamine B8.
Biological Functions
Inositol and its derivatives are integral to numerous cellular functions. Myo-inositol is a key component of membrane phospholipids and participates in various cellular processes, including ion channel permeability, metabolic homeostasis, mRNA export, and cytoskeleton remodeling8. Inositol also plays a role in the phosphatidyl inositol (PI) second messenger system, which is linked to various neurotransmitter receptors5.
Therapeutic Applications of Inositol
Polycystic Ovary Syndrome (PCOS)
Inositol, particularly myo-inositol and D-chiro-inositol, has shown promise in treating PCOS. These compounds improve ovarian function, enhance fertility, and modulate hormonal parameters involved in the reproductive axis. They also help in reducing insulin resistance and adverse metabolic outcomes associated with PCOS1 10.
Neonatal Health
Inositol supplementation has been studied for its potential benefits in preterm infants, particularly those at risk for or suffering from respiratory distress syndrome (RDS). Studies have shown that inositol can significantly reduce neonatal and infant mortality, as well as decrease the incidence of severe conditions like retinopathy of prematurity (ROP) and intraventricular hemorrhage (IVH)2 4.
Mental Health
Inositol has been investigated for its effects on mental health disorders such as depression, panic disorder, and obsessive-compulsive disorder (OCD). Clinical trials have demonstrated that inositol can significantly reduce symptoms in these conditions, making it a potential alternative to selective serotonin reuptake inhibitors (SSRIs)3 5.
Glucose Homeostasis
Inositol has been shown to improve glucose homeostasis by enhancing insulin sensitivity. Meta-analyses of randomized controlled trials indicate that inositol supplementation can reduce fasting plasma glucose, postprandial glucose levels, and insulin resistance, making it a potential therapeutic agent for managing diabetes and other glucose-related disorders6.
Safety and Tolerability
Inositol is generally well-tolerated with minimal side effects. Clinical trials have reported its safety in various dosages and formulations, making it a viable option for long-term use in different therapeutic contexts5 8.
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Inositol Mechanisms of Action
The mechanisms through which inositol exerts its effects are complex and multifaceted. Inositol participates in the formation of phosphoinositides and inositol phosphates, which are crucial for cell signaling pathways. These pathways are involved in various cellular responses, including growth, survival, and metabolic regulation8 9.
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Adverse Effects of Inositol
Gastrointestinal Side Effects
High doses of myo-inositol (12 g/day) can cause mild gastrointestinal issues such as nausea, flatus, and diarrhea. The severity of these side effects does not increase with dosage1 7.
Adverse Events in Clinical Trials
Inositol supplementation in various clinical trials showed minimal adverse events, with no serious side effects reported. However, the assessment of adverse effects was often scarce and not fully addressed2 5.
Impact on Preterm Infants
Inositol supplementation in preterm infants did not show significant adverse effects. Some studies even reported fewer adverse events and comorbidities in the inositol groups compared to control groups3 4 5 9.
Lack of Hormonal and Other Adverse Effects
Short-term dietary inositol did not show any significant changes in thyroid hormones or cortisol levels in patients with bipolar disorder. It also did not alleviate other side effects such as tremor and thirst6.
Psychiatric Use
Inositol used in psychiatric conditions like depression, panic disorder, and obsessive-compulsive disorder showed minimal side effects. However, it was not beneficial for conditions like schizophrenia, Alzheimer’s, ADDH, autism, or ECT-induced cognitive impairment8.
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How has Inositol Improved Patient Outcomes?
Respiratory Distress Syndrome in Preterm Infants
Inositol supplementation significantly reduces the risk of death or bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP), and intraventricular hemorrhage (IVH) in preterm infants with RDS1.
Polycystic Ovary Syndrome (PCOS)
Myo-inositol (MI) and D-chiro-inositol (DCI) improve ovarian function, fertility, and metabolic parameters in PCOS patients, reducing hyperandrogenism symptoms like acne and hirsutism2 3.
MI supplementation enhances reproductive outcomes in PCOS patients undergoing intracytoplasmic sperm injection (ICSI) by improving oocyte quality and fertilization rates4 5.
MI combined with alpha-lactalbumin improves insulin sensitivity and hormonal balance in PCOS patients, particularly those with insulin resistance6.
Glucose Homeostasis
Inositol supplementation improves glucose homeostasis by reducing fasting plasma glucose, postprandial glucose levels, fasting insulin, and HOMA-IR, indicating better insulin sensitivity7.
Myo-inositol lowers the risk of developing gestational diabetes mellitus (GDM) in high-risk pregnant women and improves glucose tolerance test results8.
Psychiatric Disorders
Inositol shows therapeutic benefits in depression, panic disorder, and obsessive-compulsive disorder (OCD), comparable to serotonin re-uptake inhibitors9.
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Common Complaints Associated with Inositol Use
Neonatal and Infant Deaths
Inositol supplementation has been shown to significantly reduce neonatal deaths in some studies1 2. However, other studies did not find a significant reduction in infant deaths2.
Bronchopulmonary Dysplasia (BPD)
One study found an increased risk difference for BPD at 36 weeks postmenstrual age with inositol supplementation, although this finding was based on a single dose and should be interpreted with caution1.
Retinopathy of Prematurity (ROP)
Some studies reported a significant reduction in severe ROP (stage ≥ 3) with inositol supplementation1. However, other studies did not find significant reductions in ROP stages 2 or higher2.
Intraventricular Hemorrhage (IVH)
Inositol supplementation was associated with a significant decrease in severe IVH (grade > II) in some studies1. Other studies did not find significant reductions in severe IVH (grades 3 or 4)2.
Necrotizing Enterocolitis (NEC) and Sepsis
No significant differences were found in the incidence of NEC or sepsis between inositol-supplemented groups and control groups in multiple studies1 2.
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Disclaimer
The content presented in this blog is generated by Consensus, an AI-powered academic search engine, and is based on publicly available scientific literature. While every effort is made to provide accurate, up-to-date, and well-researched information, the content is intended for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making any decisions regarding medical conditions, treatments, or medications. The AI system’s analysis may not cover all perspectives, emerging research, or individual cases, and it is not a substitute for professional expertise. Neither the blog publisher nor the developers of the AI-powered search engine are responsible for any actions taken based on the information provided in this content. Use of this information is at your own risk. Citations to the original scientific studies are included for reference, but these studies should be reviewed in full and interpreted with the guidance of a healthcare or research professional.
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