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myo-inositol

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https://www.readbyqxmd.com/read/28817575/mck1-is-a-novel-regulator-of-myo-inositol-phosphate-synthase-mips-that-is-required-for-inhibition-of-inositol-synthesis-by-the-mood-stabilizer-valproate
#1
Wenxi Yu, Joshua Daniel, Dhara Mehta, Krishna Rao Maddipati, Miriam L Greenberg
Myo-inositol, the precursor of all inositol compounds, is essential for the viability of eukaryotes. Identifying the factors that regulate inositol homeostasis is of obvious importance to understanding cell function and the pathologies underlying neurological and metabolic resulting from perturbation of inositol metabolism. The current study identifies Mck1, a GSK3 homolog, as a novel positive regulator of inositol de novo synthesis in yeast. Mck1 was required for normal activity of myo-inositol phosphate synthase (MIPS), which catalyzes the rate-limiting step of inositol synthesis...
2017: PloS One
https://www.readbyqxmd.com/read/28811707/myo-inositol-reduces-%C3%AE-catenin-activation-in-colitis
#2
Emily M Bradford, Corey A Thompson, Tatiana Goretsky, Guang-Yu Yang, Luz M Rodriguez, Linheng Li, Terrence A Barrett
AIM: To assess dietary myo-inositol in reducing stem cell activation in colitis, and validate pβ-catenin(S552) as a biomarker of recurrent dysplasia. METHODS: We examined the effects of dietary myo-inositol treatment on inflammation, pβ-catenin(S552) and pAkt levels by histology and western blot in IL-10(-/-) and dextran sodium sulfate-treated colitic mice. Additionally, we assessed nuclear pβ-catenin(S552) in patients treated with myo-inositol in a clinical trial, and in patients with and without a history of colitis-induced dysplasia...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28804631/the-influence-of-d-chiro-inositol-and-d-myo-inositol-in-pregnant-women-with-glucose-intolerance
#3
Domenico Dell'Edera, Francesca Sarlo, Arianna Allegretti, Francesca Simone, Maria Giovanna Lupo, Annunziata Anna Epifania
The aim of the present study was to demonstrate that the use of inositol and folic acid from the first trimester of pregnancy, counteracts the onset of gestational diabetes mellitus (GDM) in women at risk, preserving the infants from macrosomia, hypoglycemia and preterm delivery. The authors collected data from the pregnant women at the laboratory (Unit of Cytogenic and Molecular Genetics), from January 2014 to April 2016, all with first trimester fasting plasma glucose (FPG) >92 mg/dl. A total of 40 women were treated with 250 mg/day D-chiro-inositol, 1...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28803850/association-of-exposure-to-manganese-and-iron-with-striatal-and-thalamic-gaba-and-other-neurometabolites-neuroimaging-results-from-the-weldox-ii-study
#4
Swaantje Casjens, Urike Dydak, Shalmali Dharmadhikari, Anne Lotz, Martin Lehnert, Clara Quetscher, Christoph Stewig, Benjamin Glaubitz, Tobias Schmidt-Wilcke, David Edmondson, Chien-Lin Yeh, Tobias Weiss, Christoph van Thriel, Lennard Herrmann, Siegfried Muhlack, Dirk Woitalla, Michael Aschner, Thomas Brüning, Beate Pesch
OBJECTIVE: Magnetic resonance spectroscopy (MRS) is a non-invasive method to quantify neurometabolite concentrations in the brain. Within the framework of the WELDOX II study, we investigated the association of exposure to manganese (Mn) and iron (Fe) with γ-aminobutyric acid (GABA) and other neurometabolites in the striatum and thalamus of 154 men. MATERIAL AND METHODS: GABA-edited and short echo-time MRS at 3T was used to assess brain levels of GABA, glutamate, total creatine (tCr) and other neurometabolites...
August 10, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28798556/a-metabolomic-geographic-and-seasonal-analysis-of-the-contribution-of-pollen-derived-adenosine-to-allergic-sensitization
#5
Geoffrey A Mueller, Peter M Thompson, Eugene F DeRose, Thomas M O'Connell, Robert E London
BACKGROUND: Studies on ragweed and birch pollen extracts suggested that the adenosine content is an important factor in allergic sensitization. However, exposure levels from other pollens and considerations of geographic and seasonal factors have not been evaluated. OBJECTIVE: This study compared the metabolite profile of pollen species important for allergic disease, specifically measured the adenosine content, and evaluated exposure to pollen-derived adenosine...
December 2016: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/28797599/magnetic-resonance-spectroscopy-analysis-of-neurochemical-changes-in-the-atrophic-hippocampus-of-app-ps1-transgenic-mice
#6
Shengxiang Liang, Jia Huang, Weilin Liu, Hao Jin, Long Li, Xiufeng Zhang, Binbin Nie, Ruhui Lin, Jing Tao, Shujun Zhao, Baoci Shan, Lidian Chen
Alzheimer's disease (AD) is characterized by neuropathological changes and progressive cognitive decline, which is associated with the volume loss and neurochemical alterations. However, the specific neurochemical alterations in cerebral regions that contribute to cognitive decline still remain unknown. In the present study, we measured cerebral morphological and neurochemical alterations using structural magnetic resonance imaging (MRI) and proton magnetic resonance spectroscopy ((1)H-MRS) in an AD model of APP/PS1 transgenic mice...
August 8, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28793304/frontal-cortex-myo-inositol-is-associated-with-sleep-and-depression-in-adolescents-a-proton-magnetic-resonance-spectroscopy-study
#7
Anna S Urrila, Antti Hakkarainen, Anu Castaneda, Tiina Paunio, Mauri Marttunen, Nina Lundbom
AIM: This study used proton magnetic resonance spectroscopy (1H MRS) to evaluate the neurochemistry of the frontal cortex in adolescents with symptoms of sleep and depression. METHODS: Nineteen non-medicated adolescent boys (mean age 16.0 years; 9 clinical cases with depression/sleep symptoms and 10 healthy controls) underwent 1H MRS at 3 T. MR spectra were acquired from the anterior cingulate cortex (ACC), the dorsolateral prefrontal cortex, and frontal white matter...
August 10, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28793216/smit1-modifies-kcnq-channel-function-and-pharmacology-by-physical-interaction-with-the-pore
#8
Rían W Manville, Daniel L Neverisky, Geoffrey W Abbott
Voltage-gated potassium channels of the KCNQ (Kv7) subfamily are essential for control of cellular excitability and repolarization in a wide range of cell types. Recently, we and others found that some KCNQ channels functionally and physically interact with sodium-dependent solute transporters, including myo-inositol transporters SMIT1 and SMIT2, potentially facilitating various modes of channel-transporter signal integration. In contrast to indirect effects such as channel regulation by SMIT-transported, myo-inositol-derived phosphatidylinositol 4,5-bisphosphate (PIP2), the mechanisms and functional consequences of the physical interaction of channels with transporters have been little studied...
August 8, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28770950/prevention-of-neural-tube-defects-and-maternal-gestational-diabetes-through-the-inositol-supplementation-preliminary-results
#9
D Dell'Edera, F Sarlo, A Allegretti, A A Epifania, F Simone, M G Lupo, M Benedetto, M R D'Apice, A Capalbo
OBJECTIVE: Our study aims to demonstrate that the use in the preconceptional period until the 24th week of pregnancy of inositol and folic acid, first of all, preserves the product of conception from neural tube defects (NTDs) and then, thanks to inositol supplementation, it possibly counteracts and prevents the onset of maternal gestational diabetes (GDM). PATIENTS AND METHODS: We have collected data derived from pregnant women arrived at our laboratory, from January 2014 to January 2016, with no family history of type 2 diabetes and hypertension...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28765058/changes-in-cerebral-metabolites-in-type-2-diabetes-mellitus-a-meta-analysis-of-proton-magnetic-resonance-spectroscopy
#10
REVIEW
Guang-Yao Wu, Qing Zhang, Jian-Lin Wu, Li Jing, Yang Tan, Tai-Chun Qiu, Jiao Zhao
To investigate whether there were differences and consistent patterns that highlight and consolidate the metabolite changes in type 2 diabetes mellitus (T2DM), a meta-analysis of proton magnetic resonance spectroscopy (MRS) was conducted. PubMed, Web of Science, and Embase databases were searched up to August 2016 for collecting the relevant studies. After an inclusion and exclusion criteria, the data was extracted. The data was analyzed using Stata software v.12.0. The weight mean difference (MD) and 95% confidence interval (CI) were used to compare continuous variables...
July 29, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28763963/thermoanalytical-study-of-sweetener-myo-inositol-%C3%AE-and-%C3%AE-polymorphs
#11
Rafael Turra Alarcon, Caroline Gaglieri, Flávio Junior Caires, Aroldo Geraldo Magdalena, Ricardo António Esteves de Castro, Gilbert Bannach
This work investigates the thermal behavior of α and β myo-inositol polymorphs. The inositol is a natural compound widely used in the food industry due to its presence in carbohydrate metabolism and its sweet taste. The occurrence of polymorphism could change some physico-chemical properties, such as melting and sublimation temperatures, and solubility. Therefore, the thermal study of polymorphism is important to ensure better conditions for synthesis, storage, and transportation of food that contains the myo-inositol...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28758362/metabolomic-determinants-of-metabolic-risk-in-mexican-adolescents
#12
Wei Perng, Emily C Hector, Peter X K Song, Martha Maria Tellez Rojo, Sasha Raskind, Maureen Kachman, Alejandra Cantoral, Charles F Burant, Karen E Peterson
OBJECTIVE: The goal of this study was to identify metabolites associated with metabolic risk, separately by sex, in Mexican adolescents. METHODS: Untargeted metabolomic profiling was carried out on fasting serum of 238 youth aged 8 to 14 years, and metabolites associated with a metabolic syndrome risk z-score (MetRisk z-score) were identified separately for boys and girls, using the simulation and extrapolation algorithm. Associations of each metabolite with MetRisk z-score were examined using linear regression models that accounted for maternal education, child's age, and pubertal status...
July 31, 2017: Obesity
https://www.readbyqxmd.com/read/28756130/inositol-supplementation-in-women-with-polycystic-ovary-syndrome-undergoing-intracytoplasmic-sperm-injection-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#13
REVIEW
Nicolás Mendoza, Laura Pérez, Tommaso Simoncini, Alessandro Genazzani
Polycystic ovary syndrome (PCOS) is a complex and heterogeneous disease that involves menstrual dysfunction and reproductive difficulty, as well as metabolic problems. The aim of this study was to assess the effectiveness of myo-inositol (MYO) and d-chiro-inositol (DCI) on improving oocyte or embryo quality and pregnancy rates for women with PCOS undergoing intracytoplasmic sperm injection (ICSI). We searched the Web of Knowledge, MEDLINE, EMBASE, Pubmed, Scopus and Cochrane databases for all articles published in any language up to March 2017...
July 14, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28753640/mycobacterium-tuberculosis-universal-stress-protein-rv2623-interacts-with-the-putative-atp-binding-cassette-abc-transporter-rv1747-to-regulate-mycobacterial-growth
#14
Lisa N Glass, Ganduri Swapna, Sivagami Sundaram Chavadi, JoAnn M Tufariello, Kaixia Mi, Joshua E Drumm, TuKiet T Lam, Guofeng Zhu, Chenyang Zhan, Catherine Vilchéze, Jesus Arcos, Yong Chen, Lijun Bi, Simren Mehta, Steven A Porcelli, Steve C Almo, Syun-Ru Yeh, William R Jacobs, Jordi B Torrelles, John Chan
We have previously shown that the Mycobacterium tuberculosis universal stress protein Rv2623 regulates mycobacterial growth and may be required for the establishment of tuberculous persistence. Here, yeast two-hybrid and affinity chromatography experiments have demonstrated that Rv2623 interacts with one of the two forkhead-associated domains (FHA I) of Rv1747, a putative ATP-binding cassette transporter annotated to export lipooligosaccharides. FHA domains are signaling protein modules that mediate protein-protein interactions to modulate a wide variety of biological processes via binding to conserved phosphorylated threonine (pT)-containing oligopeptides of the interactors...
July 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28752910/antioxidants-for-female-subfertility
#15
REVIEW
Marian G Showell, Rebecca Mackenzie-Proctor, Vanessa Jordan, Roger J Hart
BACKGROUND: A couple may be considered to have fertility problems if they have been trying to conceive for over a year with no success. This may affect up to a quarter of all couples planning a child. It is estimated that for 40% to 50% of couples, subfertility may result from factors affecting women. Antioxidants are thought to reduce the oxidative stress brought on by these conditions. Currently, limited evidence suggests that antioxidants improve fertility, and trials have explored this area with varied results...
July 28, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28752510/comparison-of-lcmodel-and-sage-in-analysis-of-brain-metabolite-concentrations-a-study-of-patients-with-mild-cognitive-impairment
#16
Chiu-Ming Shih, Jui-Jen Lai, Chin-Ching Chang, Cheng-Sheng Chen, Yi-Chun Yeh, Twei-Shiun Jaw, Jui-Sheng Hsu, Chun-Wei Li
PURPOSE: The purpose of this study was to compare brain metabolite concentration ratios determined by LCModel and Spectroscopy Analysis by General Electric (SAGE) quantitative methods to elucidate the advantages and disadvantages of each method. MATERIALS AND METHODS: A total of 10 healthy volunteers and 10 patients with mild cognitive impairment (MCI) were recruited in this study. A point-resolved spectroscopy (PRESS) sequence was used to obtain the brain magnetic resonance spectroscopy (MRS) spectra of the volunteers and patients, as well as the General Electric (GE) MRS-HD-sphere phantom...
March 15, 2017: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/28751130/in-vivo-gamma-aminobutyric-acid-and-glutamate-levels-in-people-with-first-episode-schizophrenia-a-proton-magnetic-resonance-spectroscopy-study
#17
P W Chiu, Simon S Y Lui, Karen S Y Hung, Raymond C K Chan, Queenie Chan, P C Sham, Eric F C Cheung, Henry K F Mak
BACKGROUND: Gamma-aminobutyric acid (GABA) dysfunction and its consequent imbalance are implicated in the pathophysiology of schizophrenia. Reduced GABA production would lead to a disinhibition of glutamatergic neurons and subsequently cause a disruption of the modulation between GABAergic interneurons and glutamatergic neurons. In this study, levels of GABA, Glx (summation of glutamate and glutamine), and other metabolites in the anterior cingulate cortex were measured and compared between first-episode schizophrenia subjects and healthy controls (HC)...
July 24, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28747210/the-medical-food-souvenaid-affects-brain-phospholipid-metabolism-in-mild-alzheimer-s-disease-results-from-a-randomized-controlled-trial
#18
Anne Rijpma, Marinette van der Graaf, Marieke M Lansbergen, Olga Meulenbroek, Aysun Cetinyurek-Yavuz, John W Sijben, Arend Heerschap, Marcel G M Olde Rikkert
BACKGROUND: Synaptic dysfunction contributes to cognitive impairment in Alzheimer's disease and may be countered by increased intake of nutrients that target brain phospholipid metabolism. In this study, we explored whether the medical food Souvenaid affects brain phospholipid metabolism in patients with Alzheimer's disease. METHODS: Thirty-four drug-naive patients with mild Alzheimer's disease (Mini Mental State Examination score ≥20) were enrolled in this exploratory, double-blind, randomized controlled study...
July 26, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28737516/pre-therapy-neural-state-of-bilateral-motor-and-premotor-cortices-predicts-therapy-gain-after-subcortical-stroke-a-pilot-study
#19
Carmen M Cirstea, Phil Lee, Sorin C Craciunas, In-Young Choi, Joseph E Burris, Randolph J Nudo
OBJECTIVE: The aim of the study was to examine whether neural state of spared motor and premotor cortices captured before a therapy predicts therapy-related motor gains in chronic subcortical stroke. DESIGN: Ten survivors, presenting chronic moderate upper limb impairment, underwent proton magnetic resonance spectroscopy, magnetic resonance imaging, clinical, and kinematics assessments before a 4-wk impairment-oriented training. Clinical/kinematics assessments were repeated after therapy, and motor gain was defined as positive values of clinical upper limb/elbow motion changes and negative values of trunk motion changes...
July 22, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28736106/in-vivo-magnetic-resonance-approach-to-trimethyltin-induced-neurodegeneration-in-rats
#20
Ladislav Baciak, Zdenka Gasparova, Tibor Liptaj, Ivo Juranek
Trimethyltin (TMT) is commonly used to induce neurodegeneration in mice and rats; however, only scarce data of in vivo MR spectroscopy and imaging characterizing TMT neurotoxicity are available. Our aim was to assess brain metabolite changes and brain atrophy by in vivo MR in the rat model of neurodegeneration induced by TMT. Adult male Wistar rats exposed to TMT (8mg/kg, i.p.) were used in the study. Proton MRS was applied on the dorsal hippocampus to reveal changes in neurochemical profile and MRI was used to assess the volume of the entire hippocampus, ventricles and whole brain...
July 20, 2017: Brain Research
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