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Vitamin E - DOAJ

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Last Updated: 27 September 2022

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The Effects of Vitamin E Analogues α-Tocopherol and γ-Tocotrienol on the Human Osteocyte Response to Ultra-High Molecular Weight Polyethylene Wear Particles

Osteocytes, a key cell type for monitoring both bone mineralisation and bone resorption, have been shown to respond to UHMWPE particles by upregulating pro-osteoclastogenic and osteocytic osteolysis. Here, we investigated the effects of vitamin E analogues u03b1-tocopherol and u03b3-tocotrienol alone or in the context of UHMWPE particles on human osteocyte gene expression and mineralization behaviour. UHMWPE particles independently upregulated antioxidant gene expression, indicating an effect of wear particles on oxidative stress. Both vitamin E analogues produced OPG mRNA expression, and u03b3-Tocotrienol also reduced RANKL mRNA expression, resulting in a significantly reduced RANKL mRNA ratio overall. Both vitamin E analogues promoted calcium absorption from mineralised cultures of osteocyte-like cells, which was consistent with this. While vitamin E can reduce osteocyte support of osteoclastogenesis in the presence of UHMWPE particles, our results indicate that the antioxidant action may lead to osteocytic osteolysis, which may promote periprosthetic osteolysis.

Source link: https://doi.org/10.3390/prosthesis4030039


Vitamin E TPGS-Poloxamer Nanoparticles Entrapping a Novel PI3Kα Inhibitor Potentiate Its Activity against Breast Cancer Cell Lines

N--6-chloro-4-hydroxy-2-quinolone-3-carboxamide is a newly synthesized phosphatidylitol 3-kinase alpha inhibitor with promising activity against cancer cells. With excellent colloidal stability in serum-containing cell culture media, the NPs achieved 60% drug loading capacity and sustained release of R19 for up to 96 h. U00b5M enhanced R19's potency against MCF-7 and MDA-MB-231 breast cancer cells in vitro in vitro, according to half-maximal inhibitory concentrations ranging from 1. 8 to 4. 3 million u00b5M. u00b5M has an IC50 of 14. 7 million u00b5 million, up to 4. 3 million u00b5M. The NPs also demonstrated low cytotoxicity against human dermal fibroblasts in humans and a greater degree in apoptosis in comparison to the free drug, which was correlated with their cellular uptake efficiency. Our results show a biocompatible NP formulation for the manufacturing of a cancer-targeted PI3Ku03b1 inhibitor, R19, which can even improve the treatment of breast cancer and other cancer therapies.

Source link: https://doi.org/10.3390/pharmaceutics14091977


Combination Treatment with Hydroxytyrosol and Vitamin E Improves NAFLD-Related Fibrosis

Cell proliferation of hepatic stellate cells by a collagenous scar was most prominent in the encapsulation of injured liver parenchyma by a collagenous scar mainly impretable to hepatic stellate cells u2019 activation. In vitro and in vivo, the potential anti-fibrotic effects of HXT + VitE combination therapy was explored in this research. In children with biopsy-proven NAFLD, the effect of HXT + VitE on fibrosis was also examined. TGF-independent upregulation of pro-oxidant NOX2 by interfering with nuclear transfer/activation of SMAD2/3 transcription factors by a TGF-u03b2-dependent manner. By histology and gene expression, the mouse model of NAFLD-related fibrosis treated with HXT + VitE showed a dramatic decrease in fibrosis pattern. According to NAFLD, HXT + VitE therapy, a decrease in circulating levels of PIIINP and NOX2 that had been promoted over time. According to our report, HXT + VitE supplementation may cause NAFLD-related fibrosis.

Source link: https://doi.org/10.3390/nu14183791


Higher Intake of Fat, Vitamin E-(β+γ), Magnesium, Sodium, and Copper Increases the Susceptibility to Prostatitis-like Symptoms: Evidence from a Chinese Adult Cohort

The Chinese Food Composition Tables evaluated the diet composition. The Chinese Food Composition Tables evaluated the diet composition. We observed higher amounts of carotene, vitamin C, vitamin E- and subclass, zinc, magnesium, selenium, potassium, sodium, potassium, iron, and manganese in the PLS group than in the control group. Conclusions: This is the first study to analyze PLS patients' nutrient intake, and it shows that an elevated intake of fat, vitamin E-, magnesium, sodium, and copper is associated with a risk of PLS.

Source link: https://doi.org/10.3390/nu14183675


Vitamin E and Metabolic Health: Relevance of Interactions with Other Micronutrients

Vitamin E has been a requisite micronutrient for mammals for a hundred years. Meanwhile, growing evidence shows that the various vitamin E metabolites and derivates also have physiological functions, which are more potent and distributed in different pathways compared to the respective vitamin E precursors. Using published co-supplementation studies, potential molecular interactions of vitamin E and other nutritional factors are discussed in this research, as well as their potential effects on physiological and pathophysiological processes.

Source link: https://doi.org/10.3390/antiox11091785


Chitosan/Sodium Dodecyl Sulfate Complexes for Microencapsulation of Vitamin E and Its Release Profile—Understanding the Effect of Anionic Surfactant

The use of chitosan is particularly promising due to its availability, biocompatibility, and interaction with anionic surfactants, which lead to complexes with varying characteristics that can be used in microcapsule wall design. The profiles of in vitro vitamin E extracted from the investigated microcapsules match with the Korsmeyer-Peppas model. The chemical structure of the anionic surfactant was found to have a major effect on the vitamin E release mechanism. Without hazardous crosslinkers, Ch/SDS coacervates can build a microcapsule wall.

Source link: https://doi.org/10.3390/ph15010054


Impact of Co-Administration of N-Acetylcysteine and Vitamin E on Cyclophosphamide-Induced Ovarian Toxicity in Female Rats

Cyclophosphamide is used to treat various forms of cancer. The new analysis was conducted to determine the effects of N-acetylcysteine and vitamin E on cyclophosphamide-induced ovarian damage by cyclophosphamide. In the T3 group, there was a significantly lower amount of MDA. Compared to other groups, the level of GPx in the S group was significantly reduced compared to those groups. Proinflammatory markers in the T3 group surpassed their lowest serum level in the T3 group, with a statistically significant difference compared to that of the S group. In addition, there were no significant differences in the primary, secondary, and graph and attic follicles between the T3 and C groups. A decrease in FSH and LH was recorded in the T3 group on the other hand, but an increase in ES was seen in the T3 group relative to the S group. According to this report, N-acetylcysteine and vitamin E coadministration could significantly reduce the side effects of cyclophosphamide, particularly in ovarian tissue.

Source link: https://doi.org/10.1155/2022/9073405


Microbiome Associated with Slovak Raw Goat Milk, Trace Minerals, and Vitamin E Content

Goat milk production in Slovakia for direct consumption and cheese processing has ignited increasing demand. However, there is also a lack of information regarding the microbial consortium in Slovak raw goat milk that has been tested by next-generation sequencing and trace elements, as well as vitamin E. A randomly selected sample of raw goat milk from various animals at farms in Slovakia was analyzed. The genus Veillonella reached an abundance of 3. 8 percent. Zinc was discovered with the highest mean value in raw goat milk, followed by iron. Copper and manganese was 0. 1746 mg/L and 0. 0238 mg/L at the time, as shown by the mean value of copper and manganese, which was 0. 1746 mg/L and 0. 051 mg/L. E vitamin E reached the mean value of 0. 3783 mg/L, which was 8. 1976 mg/L. This research is the first to show microbial colonies in raw goat milk from Slovak farms. It also helps with trace elements and vitamin E status in raw goat milk, making it a nutritionally balanced diet.

Source link: https://doi.org/10.1155/2022/4595473


Superoxide Dismutase and Vitamin E Levels in Serum as Indicators in Patients with Acute and Chronic Leukemia

In addition, the incidence of leukemia rises with age and a lower ability of the immune system to detoxify those free radicals. Patients with leukemia were divided into four categories based on their leukemia diagnosis: acute lymphoid leukemia, acute myeloid leukemia, chronic lymphoid leukemia, and chronic myeloid leukemia. SOD levels were predicted to increase with age, according to the studies, but vitamin E levels in leukemia patients decreased with age. Except for the CLL group, which showed a significant decline relative to the healthy controls, there were no statistically significant differences in vitamin E levels in ALL, AML, and CML. These findings show that SOD and vitamin E levels play a vital role in acute and chronic leukemia.

Source link: https://doi.org/10.53293/jasn.2022.4509.1117


Semen quality and sperm characteristics in broiler breeder cockerels fed vitamin E during hot season

During the hot season, thirty-two Arbor Acres cockerels aged 27 weeks were used to determine the effect of vitamin E on the semen characteristics and sperm quality. In AA cockerels, dietary vitamin E significantly increased the semen volume and number of sperm cells. CONTROL birds had lower SV than birds fed 150 mg VE. During the hot season, it may be helpful to supplement the broiler breeder cockerel diet with VE up to 150 mg kg-1 feed, as it increased SV, NS, and PLS, and reduced sperm abnormality.

Source link: https://doi.org/10.4025/actascianimsci.v44i1.56848

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions