Ornithine decarboxylase activity is affected by radiofrequency radiation in rat primary neural cells

PMID: 

Int J Radiat Biol. 2007 Jun ;83(6):367-74. PMID: 17487676

Abstract Title: 

Ornithine decarboxylase activity is affected in primary astrocytes but not in secondary cell lines exposed to 872 MHz RF radiation.

Abstract: 

PURPOSE: The effects of radiofrequency (RF) radiation on cellular ornithine decarboxylase (ODC) activity were studied in fibroblasts, two neural cell lines and primary astrocytes. Several exposure times and exposure levels were used, and the fields were either unmodulated or modulated according to the characteristics of the Global System for Mobile (GSM) communications.MATERIALS AND METHODS: Murine L929 fibroblasts, rat C6 glioblastoma cells, human SH-SY5Y neuroblastoma cells, and rat primary astrocytes were exposed to RF radiation at 872 MHz in a waveguide exposure chamber equipped with water cooling. Cells were exposed for 2, 8, or 24 hours to continuous wave (CW) RF radiation or to a GSM type signal pulse modulated at 217 Hz, at specific absorption rates of 1.5, 2.5, or 6.0 W/kg. Cellular ODC activities of cell samples were assayed.RESULTS: ODC activity in rat primary astrocytes was decreased statistically significantly (p values from 0.003 to

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6-gingerol was as effective as ondansetron in the treatment of pica induced by cisplatin.

PMID: 

Drug Des Devel Ther. 2019 ;13:2633-2641. Epub 2019 Aug 1. PMID: 31534312

Abstract Title: 

Effects of ondansetron and [6]-gingerol on pica and gut microbiota in rats treated with cisplatin.

Abstract: 

Purpose: [6]-gingerol is one of the main components of ginger with many biological activities. In this study, the effects of ondansetron and [6]-gingerol on pica and gut microbiota in rats injected with cisplatin were evaluated.Materials and methods: Rat model of cisplatin-induced pica was established, and the effects of ondansetron and [6]-gingerol on the gut microbiota were further studied by 16S rDNA gene analysis.Results: The results showed that the total intake of kaolin of the rats injected with cisplatin was significantly increased, and treatment of ondansetron and [6]-gingerol in advance could significantly ameliorate the pica induced by cisplatin. The body weight of the rats injected with cisplatin was decreased compared with the control group. The 16S rDNA gene analysis has shown that ondansetron, [6]-gingerol and cisplatin could increase the relative abundance ofand decreaseon phylum level.Conclusion: [6]-gingerol was as effective as ondansetron in the treatment of pica induced by cisplatin in rats, and it seemed that [6]-gingerol had the potential to ameliorate the alteration of gut microbiome, but it needs further study.

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Low-power microwave exposure may act on human mast cells by altering gene expression via a mechanism involving activation of protein kinase C, and at temperatures well below those known to induce a heat shock response.

PMID: 

Cell Biol Int. 2000 ;23(11):739-48. PMID: 10736198

Abstract Title: 

Effects on protein kinase C and gene expression in a human mast cell line, HMC-1, following microwave exposure.

Abstract: 

We used a resonant cavity which delivered a continuous wave exposure at 864.3 MHz at an average specific absorption rate (SAR) of 7 W/kg to determine non-thermal biological effects of microwave exposure. A human mast cell line, HMC-1, was used as the biological target. Cells were given three exposures each of 20-min duration daily for 7 days. The temperature of the cell culture medium during the exposure fell to 26.5 degrees C. Effects were seen on localization of protein kinase C, and expression of three genes of 588 screened. The affected genes included the proto-oncogene c-kit, the transcription factor Nucleoside diphosphate kinase B and the apoptosis-associated gene DAD-1. Stress response genes were variably upregulated. No significant effect on morphology or on F-actin distribution was detected. We conclude that low-power microwave exposure may act on HMC-1 cells by altering gene expression via a mechanism involving activation of protein kinase C, and at temperatures well below those known to induce a heat shock response.

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2.45 GHz EMF exposure can initiate the activation of rat microglia cells and STAT3 signalling involves in EMF-induced microglial activation.

PMID: 

Int J Radiat Biol. 2010 Jan ;86(1):27-36. PMID: 20070213

Abstract Title: 

STAT3 signalling pathway is involved in the activation of microglia induced by 2.45 GHz electromagnetic fields.

Abstract: 

PURPOSE: Microglia activation plays a pivotal role in the initiation and progression of central nervous system (CNS) insult. The aim of the present work was to investigate the activation of microglia and involvement of signal transducer and activator of transcription 3 (STAT3) in microglia activation after 2.45 GHz electromagnetic fields (EMF) exposure.MATERIALS AND METHODS: In this study, murine N9 microglial cells were exposed to 2.45 GHz EMF, the protein expressions of STAT3, Janus Tyrosine kinase 1 and 2(JAK1 and JAK2), phosphor-(Try705)STAT3 and DNA binding activity of STAT3 were examined by Western blot analysis and electrophoresis mobility shift assay (EMSA). Levels of the nitric oxide (NO) derivative nitrite were determined in the culture medium by the Griess reaction. The mRNA expression of tumour necrosis factor alpha (TNF-alpha) and inducible nitric oxide synthase (iNOS) were detected by reverse transcription and polymerase chain reaction (RT-PCR).RESULTS: A significant increase of STAT3 DNA-binding ability was noted after exposure. Consistent with this, EMF rapidly induced phosphorylation of STAT3 and activated JAK1 and JAK2. In addition, EMF exposure increased transcription levels of the inflammation-associated genes, iNOS and TNF-alpha, which are reported to contain STAT-binding elements in their promoter region. P6, a JAK inhibitor, reduced induction of iNOS and TNF-alpha, nuclear factor binding activity, and activation of STAT3 in EMF-stimulated microglia.CONCLUSION: These results provide evidence that EMF exposure can initiate the activation of microglia cells and STAT3 signalling involves in EMF-induced microglial activation.

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Pulsed radiofrequency radiation increases the expression of activating transcription factor 3, an indicator of cellular “stress”, in the rat dorsal root ganglia.

PMID: 

Eur J Pain. 2006 Feb ;10(2):171-6. PMID: 16310722

Abstract Title: 

Pulsed radiofrequency applied to dorsal root ganglia causes a selective increase in ATF3 in small neurons.

Abstract: 

BACKGROUND: This is a"proof of concept study"to test the hypothesis that pulsed radiofrequency, PRF, produces cell stress at the primary afferent level without signs of overt thermal damage. We assumed that cell stress would result in impairment of normal function, and used the expression of activating transcription factor 3, ATF3, as an indicator of cellular"stress".METHODS: PRF (20 ms of 500-kHz RF pulses, delivered at a rate of 2 Hz; maximum temperature 42 degrees C) was delivered either to the sciatic nerve of adult rats in mid thigh, or to the L4 anterior primary ramus just distal to the intervertebral foramen. Controls were sham-operated or L4 axotomised. All tissues were examined 14 days after surgery. The percentage of CGRP- or ATF3-positive DRG neuronal somata was calculated using image analysis software (SigmaScan Pro 4).RESULTS: ATF3 expression was upregulated in L4 DRG neuronal cell bodies, irrespective of their size, after axotomy. It was also upregulated significantly (p

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A review of ginger in the prevention of ageing and degenerative diseases.

PMID: 

Evid Based Complement Alternat Med. 2019 ;2019:5054395. Epub 2019 Aug 20. PMID: 31531114

Abstract Title: 

Ginger (Roscoe) in the Prevention of Ageing and Degenerative Diseases: Review of Current Evidence.

Abstract: 

Currently, the age of the population is increasing as a result of increased life expectancy. Ageing is defined as the progressive loss of physiological integrity, which can be characterized by functional impairment and high vulnerability to various types of diseases, such as diabetes, hypertension, Alzheimer's disease (AD), Parkinson's disease (PD), and atherosclerosis. Numerous studies have reported that the presence of oxidative stress and inflammation contributes to the development of these diseases. In general, oxidative stress could induce proinflammatory cytokines and reduce cellular antioxidant capacity. Increased oxidative stress levels beyond the production of antioxidant agents cause oxidative damage to biological molecules, including DNA, protein, and carbohydrates, which affects normal cell signalling, cell growth, differentiation, and apoptosis and leads to disease pathogenesis. Since oxidative stress and inflammation contribute to these diseases, ginger (Roscoe) is one of the potential herbs that can be used to reduce the level of oxidative stress and inflammation. Ginger consists of two major active components, 6-gingerol and 6-shogaol, which are essential for preventing oxidative stress and inflammation. Thus, this paper will review the effects of ginger on ageing and degenerative diseases, including AD, PD, type 2 diabetes mellitus (DM), hypertension, and osteoarthritis.

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Modulatory effect of zingerone against cisplatin or γ-irradiation induced hepatotoxicity by molecular targeting regulation.

PMID: 

Appl Radiat Isot. 2019 Sep 10 ;154:108891. Epub 2019 Sep 10. PMID: 31536909

Abstract Title: 

Modulatory effect of zingerone against cisplatin orγ-irradiation induced hepatotoxicity by molecular targeting regulation.

Abstract: 

Zingerone (ZO) is an ingredient of ginger (Zingiber officinale) which has different pharmacological properties. The objective of this research was to evaluate the protective effect of ZO against Cisplatin (Cis) orγ-Irradiation (IR)-induced hepatotoxicity in rats. ZO was given orally for consecutive 14 days prior to the treatment with Cis or exposure to IR at 15th day. Animals were sacrificed at the 23rd day. Cis or IR induced a marked increase in MAPK signal transduction as evidenced by increased p38 MAPK,JNK and ErK1/2. CYP2E1 and NADPH oxidase were significantly up-regulated. Inflammatory markers (TLR4, iNOS, COX-2 and MPO) and liver enzymes (AST, ALT and ALP) activities were also increased. Administration of ZO significantly ameliorated the above mentioned parameters.

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Comparison of phytochemicals, antioxidant and anti-inflammatory properties of sun-, oven- and freeze-dried ginger extracts.

PMID: 

Foods. 2019 Oct 6 ;8(10). Epub 2019 Oct 6. PMID: 31590464

Abstract Title: 

Comparison of Phytochemicals, Antioxidant and Anti-Inflammatory Properties of Sun-, Oven- and Freeze-Dried Ginger Extracts.

Abstract: 

The effects of different drying methods, including sun-, oven-, and freeze-drying on the changes in the antioxidant and anti-inflammatory activities of ginger (var. Rubra) rhizome were studied. Sun-, oven-, and freeze-dried ginger showed a significant (

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The use of some feminine hygiene products can lead to high levels of volatile organic compounds in the blood of women.

PMID: 

J Womens Health (Larchmt). 2019 Sep 18. Epub 2019 Sep 18. PMID: 31532304

Abstract Title: 

Exposure to Volatile Organic Compounds and Use of Feminine Hygiene Products Among Reproductive-Aged Women in the United States.

Abstract: 

Feminine hygiene products (FHPs) are personal care products widely used by women. A few studies have detected some volatile organic compounds (VOCs) in FHPs, but no previous epidemiological studies have linked use of these products to human exposure to VOCs using biomarkers. Therefore, we evaluated whether the use of FHPs was associated with VOC exposures among reproductive-aged women in the United States.Data on 2432 women aged 20-49 years from National Health and Nutrition Examination Survey 2001-2004 were utilized. Self-reported use of feminine products (tampons, sanitary napkins, vaginal douches, sprays, powders, wipes/towelettes, and other products) was obtained from questionnaires. Survey-weighted linear regression models were used to estimate percent changes in VOC whole blood concentrations and 95% confidence intervals (CIs).Black women had significantly more use of vaginal douching and significantly higher whole blood concentrations of 1,4-dichlorobenzene (DCB) ( 

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Berberine and dyslipidemia: different applications and biopharmaceutical formulations without statin-like molecules.

PMID: 

J Med Food. 2019 Aug 23. Epub 2019 Aug 23. PMID: 31441678

Abstract Title: 

Berberine and Dyslipidemia: Different Applications and Biopharmaceutical Formulations Without Statin-Like Molecules-A Meta-Analysis.

Abstract: 

The aim of this study was to analyze the efficacy of berberine taken alone or in other formulations (with silymarin or other mixtures) on dyslipidemia through a systematic review of the literature and a meta-analysis. A systematic investigation was conducted on 19 studies that were selected based on inclusion and exclusion criteria. Both controlled trials ( = 12) and cross-sectional trials ( = 7) were included. The following formulations were examined: berberine used alone ( = 5), berberine combined with silymarin ( = 8), and other mixture containing berberine ( = 6). A meta-analysis was performed using a fixed-effects model and meta-regression. Total cholesterol (TC), low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, and triglycerides were considered. Moreover, possible associations of each parameter with age and the dose and duration of the treatment were analyzed. The data obtained showed a significant reduction in TC and LDL cholesterol for each formulation. A reduction in triglycerides was also observed for both TC and LDL but with a smaller impact. As regards HDL, a slight increase was observed, but it was not statistically significant. The formulation of berberine in association with silymarin was found to have the greatest impact on TC, LDL, HDL, and triglycerides. The greater efficacy of the formulation consisting of berberine associated with silymarin can probably be accounted for by the fact that the latter increases the bioavailability of berberine. However, it is necessary to carry out further clinical studies to better define the efficacy of the treatment and which patients show the best response.

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