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söndag 19 januari 2025

Serotoniini-hermovälittäjäainejärjestelmän suhde neuronaaliin excitotoksisuuteen ja mitokondriatasoon ?

 https://pmc.ncbi.nlm.nih.gov/articles/PMC6561197/

Mechanistically, the effects of 5-HT were mediated via the 5-HT2A receptor and master modulators of mitochondrial biogenesis, SIRT1 and PGC-1α.

 SIRT1 was required to mediate the effects of 5-HT on Mitochondrial function is also enhanced by 5-HT, increasing cellular respiration and ATP, the energy currency of the cell. 

We found 5-HT reduces cellular reactive oxygen species and exerts potent neuroprotective action in neurons challenged with stress, an effect that requires SIRT1.

 These findings highlight a role for the mitochondrial effects of 5-HT in the facilitation of stress adaptation and identify drug targets to ameliorate mitochondrial dysfunction in neurons.mitochondrial biogenesis and function in cortical neurons. 

In cortical neurons, 5-HT enhanced expression of antioxidant enzymes, decreased cellular reactive oxygen species, and exhibited neuroprotection against excitotoxic and oxidative stress, an effect that required SIRT1. 

 

 

(Kommentti: excitotatiivit  aminohapot aivojen  funktiossa ovat  glutamiinihappo (E) ja aspartaatti (D). 

E ja D ovat  non-essentiellejä aminohappoja, jotka ovat  elämälle välttämättömiä kehon rakenneosia ja joita keho itse muodostaa. Glutamiinihappo muodostaa glutamiinia Q) sitomalla ammoniuma, joka on pienessäkin määrin myrkyllinen aivolle (esim maksakoomasa). Sitruunahapposklin alfaketoglutaarihappo  on lähde josta muodostuu glutamiinhappoa, joka  rikstuu  glutamiiniksi. Palautuessan glutamiini vapauttaa  "ilmaista"  sidosenergiaa energiaa synteeseihin neuroneissa. GABA on  pääteuote nhibitoriosessa neuronissaja  GLU excitatorisessa neuronissa. 

Ilmeisen tärkeä säätelevä osuus serotonergisellä neuronilla näiden perustavien  järjestelmien  takasäätelijänä viitaisi siihen, että ei  ehkä tarpeeksi edes osata suojata serotonergistä  haermojärjestelmää. Esim  huumeiden käytössä purkaantuu serotonergisistä hermoista välittäjäaineita. Niiden uudelleen muodostuminen  kestää aikaa ja vaikuttaa mielialaan ja unensaantiin cirkadiseen järjestelmään. Serotonergisen järjstelmän toipuminen vaatii kuukausia. jo ne vielä ovat  korjattavissa. Yleensä hoidetaan sekundaaisia  seikkoja kuten  unettomuutta tai määritteleätönä  kivuliaisuutta tai  pahaaoloa  (kipufiltterijärjestelmä aivotasossa  heikkenee, jos serotoniinijärjestelmä  on häiriösså. Tavallisen ruoan, raikkaa nilman , huumeita  pidättymisen ja  alkoholin kohtuullisen käytön tai  jopa raittiuden , säännöllisen unen  merkitys on  suuri  tämän  serotonihermosto tukemisessa.


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Miksi tässä yhteydessä  Gluteeni-blogi?

Arvelen että  gluteeni-intolerantikoilla jää kiertelemään  kehoon  haitallisia  antigeenisiä PQQP, QQQP tms pätkiä   pilkkoutumattomia dipeptidejä   tai  vasta.aineita  ja  ne tavalla tai toisella  vahingoittavat niitä elimiä joissa toimii  tämä a-KG-Glu, Gln, Gamma-Aminovoihappo (Gaba),OH-voihappo, meripihakahapposemialdehydi, alfa-ketoglutaarihappo (alfa-KG)- Glu- aineenvaihdunnallinen  sykli. kylkiäisena  tavalliselle  hyvin toiminalle sitruunahapposyklille mitokondriamaailmassa ja  osin sytoplasmassa.   Sellaisia elimiä aivojen lisäksi on Beta-saarekesolu haimassa ja munuainen. 

Niisä kohdissa kehoa, missä on huippu-nanotekniikan maailman tapahtumia, saadaan  sidosenergian purkautumisesta Gln glutamiinsita  Glu lutamaatiksi se tarvitava  reaktioenergia. Siis Glu ja Gln niiden täytyy pystyä toimiaan  erillisinä,  integroituina   eikä klimmeinä, jotia aggrekaatit ja vasa-aineet  haittaavat.  Tässä on avuksi  vähentää  gluteenin syömistä, kaikkien, ei vain niiden jotaka kuolisivat gluteeniin. Sen takai gluteeniton dieeti  tarjotaanusein mahdollisuutena  monenlaisen vaivan  hhoitoon, kun ei  selvää  hoitokohdemolekyyliä tai järjestelmää edes tunneta.  Asia ei anna heti  imitään tulsota muta  joissain viikoissa, kuukausisa tai vuosissa  voi havaita tapahtuvan  jotain  kohentumista kehon rakenteissa.  esim iho saatta  olla tervempi, haavat paraneva nopeammin,  suoli on joostavampi,  hmm-  tähän menisi kai aika jos kaikkea  kohenemista  gfd-dieetistä kertoo. 

Veri pysyy paremmin koossa, verisuonet eivät itsestään pirstoudu mustelmille. ym ym.

Toiset muunta vehnän gliadiinigeeniä, toiset taas vehnän excitatorisen aminohapon Glu (E/Q) rakennetta . Toiset tekevät vahvempaa gluteenia, rehua.

 Glu  in gluten

19 results

Enhancing growth, liver health, and bile acid metabolism of tilapia (Oreochromis niloticus) through combined cholesterol and bile acid supplementation in plant-based diets.
Jiang J, Lu X, Dong L, Tian J, Zhang J, Guo Z, Luo Y, Cui Z, Wen H, Jiang M. Anim Nutr. 2024 Mar 8;17:335-346. doi: 10.1016/j.aninu.2024.03.001. eCollection 2024 Jun. PMID: 38800736 Free PMC article.
The isonitrogenous (321 g/kg crude protein) and isolipidic (76 g/kg crude fat) diets (Con diet) were based on plant protein sources, which included corn gluten meal, soybean meal, cottonseed meal and rapeseed meal. The Con diet was supplemented with 12 g/kg cholesterol (CH …
Absence of Dx2 at Glu-D1 Locus Weakens Gluten Quality Potentially Regulated by Expression of Nitrogen Metabolism Enzymes and Glutenin-Related Genes in Wheat.
Song L, Li L, Zhao L, Liu Z, Xie T, Li X. Int J Mol Sci. 2020 Feb 18;21(4):1383. doi: 10.3390/ijms21041383. PMID: 32085665 Free PMC article.
Absence of high-molecular-weight glutenin subunit (HMW-GS) Dx2 weakens the gluten quality, but it is unclear how the absence of Dx2 has these effects. Thus, we investigated the gluten quality in terms of cytological, physicochemical, and transcriptional characterist …
Wheat Gluten Amino Acid Analysis by High-Performance Anion-Exchange Chromatography with Integrated Pulsed Amperometric Detection.
Rombouts I, Lagrain B, Lamberts L, Celus I, Brijs K, Delcour JA. Methods Mol Biol. 2019;2030:381-394. doi: 10.1007/978-1-4939-9639-1_28. PMID: 31347132
The present chapter describes an accurate and user-friendly method for determining amino acid composition of wheat gluten proteins and their gliadin and glutenin fractions. The method consists of hydrolysis of the peptide bonds in 6.0 M hydrochloric acid (HCl …
Deletion of the low-molecular-weight glutenin subunit allele Glu-A3a of wheat (Triticum aestivum L.) significantly reduces dough strength and breadmaking quality.
Zhen S, Han C, Ma C, Gu A, Zhang M, Shen X, Li X, Yan Y. BMC Plant Biol. 2014 Dec 19;14:367. doi: 10.1186/s12870-014-0367-3. PMID: 25524150 Free PMC article.
The Glu-A3a-encoded B-subunit showed a higher expression level and accumulation rate during grain development. These characteristics of the Glu-A3a allele could contribute to achieving superior gluten quality and demonstrate its potential application t …
Whey protein delays gastric emptying and suppresses plasma fatty acids and their metabolites compared to casein, gluten, and fish protein.
Stanstrup J, Schou SS, Holmer-Jensen J, Hermansen K, Dragsted LO. J Proteome Res. 2014 May 2;13(5):2396-408. doi: 10.1021/pr401214w. Epub 2014 Apr 21. PMID: 24708224 Clinical Trial.
In contrast to previous studies, the WI meal caused a decreased rate of gastric emptying compared to the other test meals. The WI meal also caused elevated levels of a number of amino acids, possibly stimulating insulin release leading to reduced plasma glucose. The …
Wheat gluten amino acid analysis by high-performance anion-exchange chromatography with integrated pulsed amperometric detection.
Rombouts I, Lagrain B, Lamberts L, Celus I, Brijs K, Delcour JA. Methods Mol Biol. 2012;828:329-37. doi: 10.1007/978-1-61779-445-2_26. PMID: 22125156
This chapter describes an accurate and user-friendly method for determining amino acid composition of wheat gluten proteins and their gliadin and glutenin fractions. The method consists of hydrolysis of the peptide bonds in 6.0 M hydrochloric acid solution at …
Wheat gluten amino acid composition analysis by high-performance anion-exchange chromatography with integrated pulsed amperometric detection.
Rombouts I, Lamberts L, Celus I, Lagrain B, Brijs K, Delcour JA. J Chromatogr A. 2009 Jul 17;1216(29):5557-62. doi: 10.1016/j.chroma.2009.05.066. Epub 2009 Jun 3. PMID: 19523641
Gradient conditions including an extra eluent (0.1M acetic acid solution) allowed multiple sequential sample analyses without risk of Glu contamination on the anion-exchange column. While gluten amino acid compositions by the present method were mostly …
Characterization of novel LMW-GS genes at Glu-D3 locus on chromosome 1D in Aegilops tauschii.
Zhao X, Yang Y, He Z, Lei Z, Ma W, Sun Q, Xia X. Hereditas. 2008 Oct;145(5):238-50. doi: 10.1111/j.1601-5223.2008.02046.x. PMID: 19076692 Free article.
The objectives of this study were to clarify the relationship between LMW-GS Glu-D3 gene of Ae. tauschii registered in GenBank and the six Glu-D3 genes including 12 allelic variants of common wheat characterized in our previous studies, and identify novel Glu
Plant promoter driven heterologous expression of HMW glutenin gene(s) subunit in E. coli.
Pandey R, Mishra A, Garg GK. Mol Biol Rep. 2008 Jun;35(2):153-62. doi: 10.1007/s11033-007-9065-7. Epub 2007 Mar 23. PMID: 17380427
Probable secondary structure of HMW glutenin protein was predicted using online ExPASy server. HMW glu Dx5 and Dy10 gave significant similarity (more than 90%) to the available database but, 1Ax1 didn't show significant similarity. ...The transcription was confirmed by Rev …
Novel DNA variations to characterize low molecular weight glutenin Glu-D3 genes and develop STS markers in common wheat.
Zhao XL, Xia XC, He ZH, Lei ZS, Appels R, Yang Y, Sun QX, Ma W. Theor Appl Genet. 2007 Feb;114(3):451-60. doi: 10.1007/s00122-006-0445-5. Epub 2006 Nov 15. PMID: 17106734
The objectives of this study were to characterize Glu-D3 subunit coding genes and to develop molecular markers for identifying Glu-D3 gene haplotypes. ...These markers will be useful to identify the Glu-D3 gene haplotypes in wheat breeding programs....

Haku "Hordein antibodies". Hordein on ohran prolamiini ja ohra taas kuuluu gluteeni muodostaviin viljoihin.

 

2,907 results

A randomized, double-blind, placebo-controlled, multiple dose, parallel study to investigate the effects of a cathepsin S inhibitor in celiac disease.
Bentley D, Mannino M, Manchester M, Teixeira PC, Reis B, Boyce M, Nagel S. Clin Transl Sci. 2025 Jan;18(1):e13901. doi: 10.1111/cts.13901. PMID: 39739628 Free PMC article. Clinical Trial.
Few participants had an increase in gliadin-specific, IFNgamma-secreting T cells, and the antigen-specific responses (anti-tTG and anti-DGP antibodies) were weaker than expected in both arms. Therefore, the primary end point was not met, although the study was underpowered …
What is the Role of Measuring Urinary Gluten Immunogenic Peptides in Clinical Practice in Patients with Coeliac Disease?
Raju SA, Ingham KE, Green O, Johnson CM, Shiha MG, Nandi N, Trott N, Penny HA, Hadjivassiliou M, Wild G, Sanders DS. J Gastrointestin Liver Dis. 2024 Dec 28;33(4):482-487. doi: 10.15403/jgld-5659. PMID: 39733322 Free article.
In our retrospective study, the results of the urinary gluten immunogenic peptide test collected within 7 days, self-reported adherence to a gluten free diet reported within 3 months, serology collected within 7 days (immunoglobulin A - tissue transglutaminase and endomysial a
Anxiety and Depression Among Adults and Children With Celiac Disease: A Meta-Analysis of Different Psychiatry Scales.
Moawad MH, Serag I, Shalaby MM, Aissani MS, Sadeq MA, Hendi NI, Elawfi B, Ghorab RMF, Mostafa N, Ibrahim N, Abdelrhem HAH, Rady AHA, Alkasaby M. Psychiatr Res Clin Pract. 2024 Jul 12;6(4):124-133. doi: 10.1176/appi.prcp.20230076. eCollection 2024 Winter. PMID: 39669540 Free PMC article. Review.
BACKGROUND: Celiac disease (CD) is an autoimmune disorder in which genetically susceptible individuals cannot digest gluten (wheat) and its homologs such as Scalin (rye) and Hordein (barley). AIM: This systematic review and meta-analysis aimed to investigate the measures o …
[Assessment of tolerance of a new product (gluten-free grain snack) in children with food allergy to gluten].
Revyakina VA, Serba EM, Mukhortykh VA, Larkova IA, Kuvshinova ED, Dolzhenkova VG, Sharikov AY, Amelyakina MV. Vopr Pitan. 2024;93(4):104-111. doi: 10.33029/0042-8833-2024-93-4-104-111. Epub 2024 Jul 15. PMID: 39396221 Russian.
Clinical safety parameters were assessed based on the dynamics of complete blood count and blood immunological parameters (total IgE, specific IgE, and IgG4 antibodies to the studied allergens) at the beginning and end of the consumption period. ...In the results of clinic …
Detection of gluten peptides in human duodenal fluids with immuno-liquid chromatography-mass spectrometry.
Dayon L, Núñez Galindo A, Chevalier J, Aquarius M, Otten B, Troost FJ, Duncan P, Affolter M. Anal Methods. 2024 Oct 17;16(40):6819-6828. doi: 10.1039/d4ay00852a. PMID: 39264106
Thus, an initial immunoprecipitation (IP) step was included. Several antibodies were tested, and one proved reliable for the enrichment of the 33-mer gluten peptide as well as a few additional gluten peptides. ...
CRISPR/Cas9-mediated multiplex gene editing of gamma and omega gliadins: paving the way for gliadin-free wheat.
Sánchez-León S, Marín-Sanz M, Guzmán-López MH, Gavilán-Camacho M, Simón E, Barro F. J Exp Bot. 2024 Dec 4;75(22):7079-7095. doi: 10.1093/jxb/erae376. PMID: 39238167 Free PMC article.
The mutations were transmitted to the offspring, and the analysis of homozygous derived lines by reverse-phase HPLC and monoclonal antibodies showed a 97.7% reduction in gluten content. Crossing these lines with other CRISPR/Cas lines deficient in the alpha-gliadins allowe …
Gastrointestinal dysfunction in Parkinson's Disease: absence of anti-gliadin antibodies.
Sahbaz G, Tekol SD, Barut BO. Asia Pac J Clin Nutr. 2024 Dec;33(4):490-495. doi: 10.6133/apjcn.202412_33(4).0003. PMID: 39209358 Free PMC article.
BACKGROUND AND OBJECTIVES: Parkinson disease (PD), which is a neurodegenerative disorder, includes several gastrointestinal symptoms that are similar to those of Celiac disease (CD). However, the presence of celiac antibodies in PD patients has not yet been studied. Our ai …
2,907 results