What about high repetitive loading doses of curcumin-omega-3-vitamin-D3 capsules
https://www.research..._in_macrophagesConjugates of fatty acids and amines, including endocannabinoids, are known to play important roles as endogenous signaling molecules. Among these, the ethanolamine conjugate of the n-3 poly unsaturated long chain fatty acid (PUFA) docosahexaenoic acid (22:6n-3) (DHA) was shown to possess strong anti-inflammatory properties. Previously, we identified the serotonin conjugate of DHA, docosahexaenoyl serotonin (DHA-5-HT), in intestinal tissues and showed that its levels are markedly influenced by intake of n-3 PUFAs. However, its biological roles remain to be elucidated. Here, we show that DHA-5-HT possesses potent anti-inflammatory properties by attenuating the IL-23-IL-17 signaling cascade in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Transcriptome analysis revealed that DHA-5-HT down-regulates LPS-induced genes, particularly those involved in generating a CD4+ Th17 response. Hence, levels of PGE2, IL-6, IL-1?, and IL-23, all pivotal macrophage-produced mediators driving the activation of pathogenic Th17 cells in a concerted way, were found to be significantly suppressed by concentrations as low as 100-500nM DHA-5-HT. Furthermore, DHA-5-HT inhibited the ability of RAW264.7 cells to migrate and downregulated chemokines like MCP-1, CCL-20, and gene-expression of CCL-22 and of several metalloproteinases. Gene set enrichment analysis (GSEA) suggested negative overlap with gene sets linked to inflammatory bowel disease (IBD) and positive overlap with gene sets related to the Nrf2 pathway. The specific formation of DHA-5-HT in the gut, combined with increasing data underlining the importance of the IL-23-IL-17 signaling pathway in the etiology of many chronic inflammatory diseases merits further investigation into its potential as therapeutic compound in e.g. IBD or intestinal tumorigenesis.
https://pubs.acs.org...rnalCode=acncdmN-Docosahexaenoyl Dopamine, an Endocannabinoid-like Conjugate of Dopamine and the n-3 Fatty Acid Docosahexaenoic Acid, Attenuates Lipopolysaccharide-Induced Activation of Microglia and Macrophages via COX-2
Several studies indicate that the n-3 long-chain polyunsaturated fatty acid docosahexaenoic acid (DHA) contributes to an attenuated inflammatory status in the development of neurodegenerative disorders, such as Alzheimer’s and Parkinson’s disease. To explain these effects, different mechanisms are being proposed, including those involving endocannabinoids and related signaling molecules. Many of these compounds belong to the fatty acid amides, conjugates of fatty acids with biogenic amines. Conjugates of DHA with ethanolamine or serotonin have previously been shown to possess anti-inflammatory and potentially neuroprotective properties. Here, we synthesized another amine conjugate of DHA, N-docosahexaenoyl dopamine (DHDA), and tested its immune-modulatory properties in both RAW 264.7 macrophages and BV-2 microglial cells. N-Docosahexaenoyl dopamine significantly suppressed the production of nitric oxide (NO), the cytokine interleukin-6 (IL-6), and the chemokines macrophage-inflammatory protein-3α (CCL20) and monocyte chemoattractant protein-1 (MCP-1), whereas its parent compounds, dopamine and DHA, were ineffective. Further exploration of potential effects of DHDA on key inflammatory mediators revealed that cyclooxygenase-2 (COX-2) mRNA level and production of prostaglandin E2 (PGE2) were concentration-dependently inhibited in macrophages. In activated BV-2 cells, PGE2 production was also reduced, without changes in COX-2 mRNA levels. In addition, DHDA did not affect NF-kB activity in a reporter cell line. Finally, the immune-modulatory activities of DHDA were compared with those of N-arachidonoyl dopamine (NADA) and similar potencies were found in both cell types. Taken together, our data suggest that DHDA, a potentially endogenous endocannabinoid, may be an additional member of the group of immune-modulating n-3 fatty acid-derived lipid mediators.
https://www.scienced...388198117300902Fatty acid amides (FAAs), conjugates of fatty acids with ethanolamine, mono-amine neurotransmitters or amino acids are a class of molecules that display diverse functional roles in different cells and tissues. Recently we reported that one of the serotonin-fatty acid conjugates, docosahexaenoyl serotonin (DHA-5-HT), previously found in gut tissue of mouse and pig, attenuates the IL-23-IL-17 signaling axis in LPS-stimulated mice macrophages. However, its presence and effects in humans remained to be elucidated. Here, we report for the first time its identification in human intestinal (colon) tissue, along with a series of related N-acyl serotonins. Furthermore, we tested these fatty acid conjugates for their ability to inhibit the release of IL-17 and CCL-20 by stimulated human peripheral blood mononuclear cells (PBMCs). Serotonin conjugates with palmitic acid (PA-5-HT), stearic acid (SA-5-HT) and oleic acid (OA-5-HT) were detected in higher levels than arachidonoyl serotonin (AA-5-HT) and DHA-5-HT, while eicosapentaenoyl serotonin (EPA-5-HT) could not be quantified. Among these, DHA-5-HT was the most potent in inhibiting IL-17 and CCL-20, typical Th17 pro-inflammatory mediators, by Concanavalin A (ConA)-stimulated human PBMCs. These results underline the idea that DHA-5-HT is a gut-specific endogenously produced mediator with the capacity to modulate the IL-17/Th17 signaling response. Our findings may be of relevance in relation to intestinal inflammatory diseases like Crohn's disease and Ulcerative colitis.
https://www.scienced...773224718305379Aim of the present investigation is to develop a curcumin loaded nanocochleates (CU-NC) from the preformed nanoliposomes (CU-NL) using design of experiments. Plackett–Burman screening design (PBD) was implemented to investigate effects of formulation and process variables on particle size (Y1) and Entrapment Efficiency (Y2). Stirring speed (X5), amount of phospholipid (X4) and cholesterol (X8) were identified as significant (P < 0.05) factors, which were further optimized using Box-Behnken design (BBD). Optimized CU-NC showed particle size, Entrapment efficiency and zeta potential of 204.14 nm, 84.21 ± 1.91 and - 8.20 mV respectively. Curcumin was partially crystalline and amorphous form in Cu-NL and CU-NC respectively, X-ray diffraction and thermal study revealed. CU-NC retarded drug release up to 24 h and followed Higuchi release kinetic model. Noteworthy CU-NC showed 45.77 and 85.81% reduction in breast cancer MCF-7 cells viability than CU-NL and curcumin dispersion respectively. CU-NC treated cells showed nuclear condensation, and nuclear fragmentation of cells and the apoptotic bodies when observed using cell permeable nucleic acid stain. Statistical design of experiments can be used to formulate the CU-NC at the optimized conditions showing the desired constraints for particle size and entrapment efficiency with better anticancer potential.
Garlic (Allium sativum) increases SIRT1 and SIRT2 gene expressions in the kidney and liver tissues of STZ- and STZ+niacinamide-induced diabetic rats
https://doi.org/10.1...jbcpp-2017-0079 Received May 22, 2017; accepted February 1, 2018 Abstract Background: Diabetic nephropathy and liver damage are important complications of diabetes mellitus (DM). Various factors, such as sirtuins (silent information regulators or SIRTs) are associated with these complications. Sirtuins are a family of NAD+-dependent proteins, and seven types of these can be found in mammalians. In this study, we evaluated the effects of aqueous garlic extract (G) on the expressions of SIRT1 and SIRT2 genes in the kidney and liver tissues of rats with types 1 and 2 diabetes. Methods: A total of 36 male Wistar rats (230–280 g) were randomly divided into six groups: C: normal control rats, D1M: type 1 diabetic rats (induced with streptozotocin, STZ), D1M + G: type 1 diabetic rats that treated with garlic extract, D2M: type 2 diabetic rats (induced with STZ and niacinamide), D2M + G: type 2 diabetic rats treated with garlic extract, and G: normal rats that received garlic extract. At the end of the treatment time, kidney and liver tissue samples were collected from all rats. The SIRT1 and SIRT2 gene expressions were determined by qRT-PCR. Results: The SIRT1 and SIRT2 gene expressions in the liver and kidney tissues of diabetic rats decreased significantly compared with those in the control rats (p < 0.05). After treatment with garlic extract, the gene expressions also
increased significantly compared with those in the diabetic rats and are close to normal level (p < 0.05). Conclusions: Garlic extract increased the SIRT1 and SIRT2 gene expressions in the livers and kidneys of diabetic rats. The antioxidant and anti-inflammatory effects of garlic have been proven in many studies. Thus, it is possible that garlic – with its effects on this pathway of gene expression – can have antioxidant and anti-inflammatory effects, thus decreasing diabetic complications.
https://www.scienced...567576918302844Chronic airway inflammation is a characteristic feature of chronic obstructive pulmonary disease (COPD). Previous studies demonstrated that melatonin had a protective effect against COPD. In addition, silent information regulator 1 (SIRT1) was reported to be beneficial in COPD. However, whether SIRT1 is involved in the protective effect of melatonin against COPD remains unclear. In this study, we investigated the effect of melatonin on a rat model of COPD and explored the potential mechanisms. Twenty eight male Wistar rats were randomly assigned to four groups: control group, COPD group, COPD+Mel group and COPD+Mel+EX527 group. Rats were challenged with cigarette smoke and lipopolysaccharide (LPS) for 28 days with or without melatonin or EX527. The pulmonary function, lung histopathology, inflammatory cells count and the concentration of IL-1β in the BALF as well as the protein expressions of SIRT1, NLRP3, cleaved caspase-1 and ASC in the lung tissues were measured. The results demonstrated that melatonin prevented the development of COPD, which was attributed to the inhibition of airway inflammation by attenuating NLRP3 inflammasome and IL-1β. Furthermore, melatonin increased the expression of SIRT1 in lung tissues of rats with COPD, while inhibition of SIRT1 by EX527 abolished the protective effect of melatonin against COPD. In conclusion, these findings suggested that melatonin attenuated airway inflammation via SIRT1 dependent inhibition of NLRP3 inflammasome and IL-1β in rats with COPD.
http://n.neurology.o...plement/S29.008Objective: To determine if AGIL-AADC administration can increase AADC activity in the putamen and subsequently dopamine to potentially improve neurological function and motor milestone acquisition.
Background: Aromatic L-amino acid decarboxylase (AADC) deficiency is a rare, genetic disorder of neurotransmitter synthesis in children. AADC is responsible for the final decarboxylation step to produce dopamine and serotonin. Dopamine is a key neurotransmitter in the striatum for motor function. Children with severe AADC deficiency fail to achieve motor milestones. AGIL-AADC is a recombinant, adeno-associated virus containing the human cDNA encoding the AADC enzyme.
Design/Methods: Single-arm, open label clinical studies of AGIL-AADC compared to natural history cohort
Setting: Single-center, National Taiwan University Children Hospital
Subjects: Children with severe AADC deficiency
Interventions: Subjects received a total dose of 1.8×1011 vg of AGIL-AADC as bilateral, intraputaminal stereotactic infusions during a single, operative session.
Results: Eighteen subjects ranged from 21 months to 8.5 years at the time of AGIL-AADC administration. At baseline no child had developed full head control, sitting unassisted or standing capability, consistent with the published, natural history cohort of 82 severe AADC patients who never achieve these motor milestones over their lifetime. Of the 18 subjects given AGIL-AADC, 15 are now two-years, and 7 five-years post-gene therapy. Subjects had evidence of sustained de novo dopamine production by F-DOPA PET imaging. Compared to the natural history cohort, after AGIL-AADC administration 5/15 gain full head control (p<0.0001); 4/15 gain sitting unassisted (p=0.0004) and one subject standing with support at 2 years. After five years 4/7 gain full head control and sit unassisted (p<0.0001) and 2/7 stand with support (p=0.0054). Adverse events, in general, were associated with overall disease state.
Conclusions: Gene therapy with AGIL-AADC is a potential therapeutic for patients with AADC deficiency to achieve and maintain motor milestones inconsistent with the natural disease course.
https://link.springe...2640-018-9880-8"AMPH inhibited AKT and GSK-3β phosphorylation levels and increased total GSK-3β levels. Furthermore, AMPH caused an increase in the activity of protein phosphatase 2 (PP2A), a signaling protein upstream of AKT, which in turn inhibited phosphorylated AKT levels. Okadaic acid, a PP2A inhibitor, protected PC12 cells against AMPH-induced apoptosis. Together, our results suggest that the PP2A/AKT/GSK3β pathway plays an important role in AMPH-induced neurotoxicity."
Edited by Ruth, 19 July 2018 - 07:33 PM.