scholarly journals Effects of Palm Vitamin E on Bone-Formation-Related Gene Expression in Nicotine-Treated Rats

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Seham Salem Ahmed Abukhadir ◽  
Norazlina Mohamed ◽  
Suzana Makpol ◽  
Norliza Muhammad
Keyword(s):  
Gene Expression ◽  
Vitamin E ◽  
Bone Formation ◽  
Olive Oil ◽  
Normal Saline ◽  
Bone Morphogenetic Protein 2 ◽  
Male Rats ◽  
Oral Supplementation ◽  
Nicotine Administration ◽  
Related Transcription Factor

The study determines the effects of palm vitamin E on the gene expression of bone-formation-related genes in nicotine-treated rats. Male rats were divided into three groups: normal saline olive oil (NSO), nicotine olive oil (NO), and nicotine palm vitamin E (NE). The treatment was carried out in 2 phases. During the first 2 months, the NSO group received normal saline while the NO and NE groups received nicotine 7 mg/kg, 6 days a week, intraperitoneally. The following 2 months, normal saline and nicotine administration was stopped and was replaced with oral supplementation of olive oil for the NSO and NO groups and oral supplementation of palm vitamin E (60 mg/kg) for the NE group. Both femurs were harvested to determine the gene expression of bone morphogenetic protein-2 (BMP-2), Osterix (OSX), and Runt-related transcription factor 2 (RUNX2). Nicotine significantly downregulated the gene expression. This effect was reversed by palm vitamin E treatment. In conclusion, palm vitamin E may play a role in osteoblast differentiation and can be considered as an anabolic agent to treat nicotine-induced osteoporosis.

Effect of Resistance Training with Palm Pollen and Testosterone on Runx2 Protein and Gene Expression Levels in Bone Tissue of Adult Male Rats

2020 ◽  
Vol 24 (3) ◽  
Author(s):  
Nazila Payandeh ◽  
Maghsoud Peeri ◽  
Mohammad Ali Azarbayjani ◽  
Seyed Ali Hosseini
Keyword(s):  
Gene Expression ◽  
Resistance Training ◽  
Bone Tissue ◽  
Healthy Lifestyle ◽  
Male Rats ◽  
Expression Levels ◽  
Protein Levels ◽  
Related Transcription Factor ◽  
And Training ◽  
Gene Expression Levels

Background: A healthy lifestyle, nutrition, and exercise can improve bone mass via several mechanisms. Objectives: This study assessed the effects of four weeks of palm pollen consumption along with resistance training on protein and gene expression levels of Runt-related transcription factor 2 (Runx2) in bone tissue of rats. Methods: Thirty-six rats were selected and assigned into six groups, including (1) training + testosterone, (2) training + palm pollen, (3) testosterone, (4) palm pollen, (5) training and (6) sham. Then, 100 mg/kg of palm pollen was prescribed five days per week. Resistance training was performed five sessions per week, and 2 mg/kg of testosterone propionate was prescribed peritoneally. Gene expression and protein levels of Runx2 were measured via the real-time PCR and Western blot methods. Results: Training had a significant effect on the increase in Runx2 protein levels (P ≤ 0.05). Training + testosterone, training + palm pollen, testosterone, and palm pollen had significant effects on gene expression and protein levels of Runx2 (P ≤ 0.05). Training + testosterone and training + palm pollen had more favorable effects on the increase of gene expression and protein levels of Runx2 than had testosterone, palm pollen, and training (P ≤ 0.05). Conclusions: Although training, palm pollen, and testosterone alone could increase the Runx2 protein levels in the bone tissue of rats, training with palm pollen and training with testosterone appeared to have more favorable effects on the increase of gene expression and protein levels of Runx2 than either alone.

scholarly journals The Importance of the Prenyl Group in the Activities of Osthole in Enhancing Bone Formation and Inhibiting Bone ResorptionIn Vitro

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Yuan-Kun Zhai ◽  
Ya-Lei Pan ◽  
Yin-Bo Niu ◽  
Chen-Rui Li ◽  
Xiang-Long Wu ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Bone Formation ◽  
Phosphatase Activity ◽  
Osteoporosis Treatment ◽  
Bone Morphogenetic Protein 2 ◽  
Tartrate Resistant Acid Phosphatase ◽  
Protective Effects ◽  
Morphogenetic Protein ◽  
Enhanced Secretion ◽  
Related Transcription Factor

Osteoporosis treatment always aimed at keeping the balance of bone formation and bone resorption. Recently, prenyl group in natural products has been proposed as an active group to enhance the osteogenesis process. Osthole has both the prenyl group and bone-protective activities, but the relationship is still unknown. In this study we found that osthole exerted a potent ability to promote proliferation and osteogenic function of rat bone marrow stromal cells and osteoblasts, including improved cell viability, alkaline phosphatase activity, enhanced secretion of collagen-I, bone morphogenetic protein-2, osteocalcin and osteopontin, stimulated mRNA expression of insulin-like growth factor-1, runt-related transcription factor-2, osterix, OPG (osteoprotegerin), RANKL (receptor activator for nuclear factor-κB ligand), and the ratio of OPG/RANKL, as well as increasing the formation of mineralized nodules. However, 7-methoxycoumarin had no obvious effects. Osthole also inhibited osteoclastic bone resorption to a greater extent than 7-methoxycoumarin, as shown by a lower tartrate-resistant acid phosphatase activity and lower number and smaller area of resorption pits. Our findings demonstrate that osthole could be a potential agent to stimulate bone formation and inhibit bone resorption, and the prenyl group plays an important role in these bone-protective effects.

scholarly journals Effect of Vitamin E Administration on Learning of the Young Male Rats

2015 ◽  
Vol 9 ◽  
pp. JEN.S29843 ◽  
Author(s):  
Nazan Dolu ◽  
Azizuddin Khan ◽  
Şule Dokutan
Keyword(s):  
Vitamin E ◽  
Locomotor Activity ◽  
Olive Oil ◽  
Open Field ◽  
Field Test ◽  
Spatial Learning ◽  
Open Field Test ◽  
Young Male ◽  
Male Rats ◽  
Young Rats

The effect of vitamin E intake on spatial learning and working memory performances of young rats has been investigated in the Morris water maze and locomotor activity has been assessed by an open-field test. A total of 45 young male Wistar albino rats aged two months were divided into three equal groups: control, olive oil, and vitamin E groups. These groups were treated for 30 days with a once daily intraperitoneal injection. The rats were then tested for their ability to find the location of the platform (spatial learning). The results revealed that there was no statistically significant difference between the time spent to find the platform and the time spent in half area of the tank, including the platform among the group, while the time spent to find the platform was found to have increased from the first day to the fourth day in all the groups. In the open-field test, the locomotor activity quite significantly increased in the peripheral area in the olive oil group. The supplementation with vitamin E for a short period had not improved the learning performance of the healthy young rats. It was concluded that the beneficial effect of vitamin E intake on learning is related to the beginning time and the duration of vitamin E intake.

scholarly journals Repercussion of nonsteroidal anti-inflammatory drugs on the gene expression of human osteoblasts

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5415 ◽  
Author(s):  
Lucia Melguizo-Rodríguez ◽  
Víctor J. Costela-Ruiz ◽  
Francisco J. Manzano-Moreno ◽  
Rebeca Illescas-Montes ◽  
Javier Ramos-Torrecillas ◽  
...  
Keyword(s):  
Gene Expression ◽  
Transforming Growth Factor ◽  
Bone Morphogenetic Protein 2 ◽  
Morphogenetic Protein ◽  
Related Transcription Factor ◽  
Inflammatory Drugs ◽  
Anti Inflammatory ◽  
And Function ◽  
Osteoblast Maturation

Background Nonsteroidal anti-inflammatory drugs (NSAIDs) are frequently used in clinical practice, which can have adverse effects on the osteoblast. The objective of this study was to determine the effect of NSAIDs on the osteoblast by analyzing the gene expression of different markers related to osteoblast maturation and function when treated in vitro with different NSAIDs. Methods Three human osteoblast lines from bone samples of three healthy volunteers were treated with 10 µM acetaminophen, indomethacin, ketoprofen, diclofenac, ibuprofen, ketorolac, naproxen, and piroxicam. The gene expression of different markers (run related transcription factor 2 [RUNX-2], type 1 collagen [COL-I], osterix [OSX], osteocalcin [OSC], bone morphogenetic protein 2 [BMP-2] and 7 [BMP-7], transforming growth factor β1 [TGF-β1], and TGFβ receptors [TGFβR1, TGFβR2; TGFBR3]) were analyzed by real-time PCR at 24 h of treatment. Results Expression of RUNX-2, COL-I, OSX, was reduced by treatment with all studied NSAIDs, OSC expression was reduced by all NSAIDs except for ketoprofen, naproxen, or piroxicam. Expression of BMP-7 was reduced by all NSAIDs; BMP-2 was reduced by all except for naproxen. In general, NSAID treatment increased the expression of TGF-β1, but not of its receptors (TGFβ-R1, TGFβ-R2, andTFGβ-R3), which was either unchanged or reduced by the treatment. Conclusion These data confirm that NSAIDs can affect osteoblast physiology, suggesting their possible impact on bone.

scholarly journals Bone Protective Effect of Extra-Virgin Olive Oil Phenolic Compounds by Modulating Osteoblast Gene Expression

Nutrients ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1722 ◽  
Author(s):  
Melguizo-Rodríguez ◽  
Manzano-Moreno ◽  
Illescas-Montes ◽  
Ramos-Torrecillas ◽  
Luna-Bertos ◽  
...  
Keyword(s):  
Gene Expression ◽  
Alkaline Phosphatase ◽  
Phenolic Compounds ◽  
Protective Effect ◽  
Olive Oil ◽  
Transforming Growth Factor ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Bone Morphogenetic Protein 2 ◽  
Type I

The phenolic compounds of extra-virgin olive oil can act at various levels to protect individuals against cardiovascular and neurodegenerative diseases, cancer, and osteoporosis, among others. Polyphenols in extra-virgin olive oil can stimulate the proliferation of osteoblasts, modify their antigen profile, and promote alkaline phosphatase synthesis. The objective of this work was to determine the effect of different extra-virgin olive oil phenolic compounds on the gene expression of osteoblast-related markers. The cells of the MG63 osteoblast line were cultured for 24 h with 10-6 M of the phenolic compounds ferulic acid, caffeic acid, coumaric acid, apigenin, or luteolin. The expression of studied markers was quantified using quantitative real-time polymerase chain reaction (q-RT-PCR). The expression by MG63 osteoblasts of growth and differentiation/maturation markers was modified after 24 h of treatment with 10-6 M of the phenolic compounds under study, most of which increased the gene expression of the transforming growth factor β1 (TGF-β1), TGF-β receptor 1,2 and 3 (TGF-βR1, TGF-βR2, TGF-βR3), bone morphogenetic protein 2 and 7 (BMP2, BMP7), run-related transcription factor 2 (RUNX-2), Alkaline phosphatase (ALP), Osteocalcin (OSC), Osterix (OSX), Collagen type I (Col-I) and osteoprotegerin (OPN). The extra-virgin olive oil phenolic compounds may have a beneficial effect on bone by modulating osteoblast physiology, which would support their protective effect against bone pathologies.

scholarly journals Biochemical markers of bone and osteoclastic differons in plasma at subacute dichloroethane intoxication

2015 ◽  
Vol 96 (5) ◽  
pp. 828-831
Author(s):  
F Kh Kamilov ◽  
E R Farshatova ◽  
D A Enikeev ◽  
G V Ivanova
Keyword(s):  
Bone Formation ◽  
Olive Oil ◽  
Nuclear Factor Kappa B ◽  
Negative Regulator ◽  
Male Rats ◽  
Nuclear Factor ◽  
Soluble Receptor ◽  
New Bone Formation ◽  
Nuclear Factor Kappa ◽  
Receptor Activator

Aim. To explore the plasma level of soluble receptor activator of nuclear factor kappa-B ligand (RANKL), osteoprotegerin and sclerostin in a model of subacute dichloroethane intoxication in rats. Methods. Experiments were carried out on 20 adult male rats weighing 180-200 g. The rats of the experimental group were administered dichloroethane at the dose of 0.84 mg/kg, mixed with olive oil by a gastric tube daily for two months, which amounted to 0,1 LD50. Control animals received an adequate amount of olive oil. Levels of soluble RANKL, osteoprotegerin and sclerostin were determined in blood serum by ELISA using commercially available reagent kits (reagents «Free RANKL», «Osteoprotegerin» and «Sclerostin» by «Biomedica Medizinprodukte Gmb and CoKG» company. Statistical data processing was performed using the Statistica 6.0 (Stat Soft) software package. Results. Exposure to dichloroethane resulted in increased levels of soluble RANKL, reduced levels of osteoprotegerin, reflecting the intense new bone formation and the functional state of osteoclasts. The level of sclerostin, which is the negative regulator for new bone formation, was elevated, indicating osteoblast precursors’ differentiation inhibition and decreased function of osteoblasts. Conclusion. In subacute dichloroethane intoxication, the serum level of soluble receptor activator of nuclear factor kappa-B ligand (RANKL) increases, osteoprotegerin level reduces, sclerostin level increases.

Protective effect of green tea extract against cadmium-induced testicular damage in rats in respect of oxidant/antioxidant equilibrium and androgen production

2020 ◽  
Vol 21 (1) ◽  
pp. 31-35
Author(s):  
Basma El-Desoky ◽  
Shaimaa El-Sayed ◽  
El-Said El-Said
Keyword(s):  
Gene Expression ◽  
Single Dose ◽  
Green Tea ◽  
Serum Testosterone ◽  
Green Tea Extract ◽  
Male Rats ◽  
Controlled Study ◽  
Control Group ◽  
Testicular Damage ◽  
Tea Extract

Objective: Investigating the effect of green tea extract (GTE) on the testicular damage induced by cadmium chloride CdCl2 in male rats. Design: Randomized controlled study. Animals: 40 male Wistar rats. Procedures: Rats were randomly divided into four groups: A) control group (each rat daily received pellet diet); B) GTE group each rat daily received pellet diet as well as 3 ml of 1.5 % w/v GTE, C) CdCl2 group each rat was I/P injected a single dose of 1 mg/kg CdCl2, then daily received pellet diet, and D) CdCl2+GTE group each rat was I/P injected a single dose of 1 mg/kg CdCl2 then daily received pellet diet as well as 3 ml of 1.5 % w/v GTE. After 30 days, blood samples were collected for hormonal assays (testosterone, FSH, and LH). In addition, both testes were collected; one of them was used for quantification of 17-beta hydroxysteroid dehydrogenase III (17β-HSDIII) gene expression using a real-time PCR. The other testis was used for determination of catalase and reduced glutathione; GSH, Nitric oxide (NO) and malondialdehyde (MDA) levels. Results: CdCl2 decreased serum testosterone levels and its synthesis pathway (17β-HSDIII testicular gene expression). While antioxidants catalase and GSH were reduced, oxidants MDA were enriched in the testes of CdCl2-poisoned rats. This CdCl2-promoted testicular dysfunction was corrected via the administration of GTE to male rats. Conclusion and clinical relevance: GTE could be used as a remedy for protecting against CdCl2-induced testicular damage in male rats.

The Protective Effect of Metformin against Oxandrolone-Induced Infertility in Male Rats

2020 ◽  
Vol 26 ◽  
Author(s):  
Abdulqader Fadhil Abed ◽  
Yazun Bashir Jarrar ◽  
Hamzeh J Al-Ameer ◽  
Wajdy Al-Awaida ◽  
Su-Jun Lee
Keyword(s):  
Gene Expression ◽  
Male Infertility ◽  
Protective Effect ◽  
Histological Examination ◽  
Sperm Count ◽  
Serum Testosterone ◽  
Male Rats ◽  
P Value ◽  
Protective Effects ◽  
Rt Pcr

Background: Oxandrolone is a synthetic testosterone analogue that is widely used among bodybuilders and athletes. However, oxandrolone causes male infertility. Recently, it was found that metformin reduces the risk of infertility associated with diabetes mellitus. Aim: This study aimed to investigate the protective effects of metformin against oxandrolone-induced infertility in male rats. Methods: Rats continuously received one of four treatments (n=7) over 14 days: control DMSO administration, oxandrolone administration, metformin administration, or co-administration of oxandrolone and metformin. Doses were equivalent to those used for human treatment. Subsequently, testicular and blood samples were collected for morphological, biochemical, and histological examination. In addition, gene expression of the testosterone synthesizing enzyme CYP11A1 was analyzed in the testes using RT-PCR. Results: Oxandrolone administration induced male infertility by significantly reducing relative weights of testes by 48%, sperm count by 82%, and serum testosterone levels by 96% (ANOVA, P value < 0.05). In addition, histological examination determined that oxandrolone caused spermatogenic arrest which was associated with 2-fold downregulation of testicular CYP11A1 gene expression. However, co-administration of metformin with oxandrolone significantly ameliorated toxicological alterations induced by oxandrolone exposure (ANOVA, P value < 0.05). Conclusion: Metformin administration protected against oxandrolone-induced infertility in male rats. Further clinical studies are needed to confirm the protective effect of metformin against oxandrolone-induced infertility among athletes.

scholarly journals Procyanidin B2 Reduces Vascular Calcification through Inactivation of ERK1/2-RUNX2 Pathway

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 916
Author(s):  
Yingquan Liang ◽  
Guilan Chen ◽  
Feng Zhang ◽  
Xiaoxiao Yang ◽  
Yuanli Chen ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Vascular Calcification ◽  
Aortic Root ◽  
Smooth Muscle Actin ◽  
Bone Morphogenetic Protein 2 ◽  
Plaque Burden ◽  
Runx2 Expression ◽  
Plaque Instability ◽  
Related Transcription Factor

Vascular calcification is strongly associated with atherosclerotic plaque burden and plaque instability. The activation of extracellular signal-regulated kinase 1/2 (ERK1/2) increases runt related transcription factor 2 (RUNX2) expression to promote vascular calcification. Procyanidin B2 (PB2), a potent antioxidant, can inhibit ERK1/2 activation in human aortic smooth muscle cells (HASMCs). However, the effects and involved mechanisms of PB2 on atherosclerotic calcification remain unknown. In current study, we fed apoE-deficient (apoE−/−) mice a high-fat diet (HFD) while treating the animals with PB2 for 18 weeks. At the end of the study, we collected blood and aorta samples to determine atherosclerosis and vascular calcification. We found PB2 treatment decreased lesions in en face aorta, thoracic, and abdominal aortas by 21.4, 24.6, and 33.5%, respectively, and reduced sinus lesions in the aortic root by 17.1%. PB2 also increased α-smooth muscle actin expression and collagen content in lesion areas. In the aortic root, PB2 reduced atherosclerotic calcification areas by 75.8%. In vitro, PB2 inhibited inorganic phosphate-induced osteogenesis in HASMCs and aortic rings. Mechanistically, the expression of bone morphogenetic protein 2 and RUNX2 were markedly downregulated by PB2 treatment. Additionally, PB2 inhibited ERK1/2 phosphorylation in the aortic root plaques of apoE−/− mice and calcified HASMCs. Reciprocally, the activation of ERK1/2 phosphorylation by C2-MEK1-mut or epidermal growth factor can partially restore the PB2-inhibited RUNX2 expression or HASMC calcification. In conclusion, our study demonstrates that PB2 inhibits vascular calcification through the inactivation of the ERK1/2-RUNX2 pathway. Our study also suggests that PB2 can be a potential option for vascular calcification treatment.

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