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Elshahid AR, Zaky AM, Goda YMH, Ismail NF. Relationship between vitamin D receptors gene polymorphism and arteriogenic erectile dysfunction. Urologia 2024:3915603241241430. [PMID: 38520301 DOI: 10.1177/03915603241241430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2024]
Abstract
BACKGROUND Over the past few decades, a number of studies have linked vitamin-D deficiency with ED (Erectile dysfunction) risk factors. There is a clear correlation between VD (vitamin-D) levels and ED, according to observational and interventional researches that have been reported in the literature. This crucial information encouraged scientists to investigate the impact of VD on erectile function in greater detail. The fact that vitamin D is a component of a healthy penis that begins in early life has just come to light, however there haven't been many research looking at the connection between vitamin D receptor gene polymorphism and erectile dysfunction. OBJECTIVE To evaluate the relationship between arteriogenic erectile dysfunction and the vitamin D receptor gene polymorphism. SUBJECTS AND METHODS Between October 2022 and October 2023, at Al-Azhar University Hospitals, 40 patients with arteriogenic ED and 40 healthy controls underwent informed consent, a detailed history, a physical examination, a penile duplex ultrasound and the extraction of peripheral blood to determine the type of polymorphism for each of the vitamin D receptors: FokI, BsmI, ApaI and TaqI by polymerase chain reaction (PCR). RESULTS There is no statistically significant association between arteriogenic erectile dysfunction and the vitamin D receptors (VDR) gene polymorphisms FokI, BsmI, ApaI and TaqI. CONCLUSION Since there is no statistically significant association between the polymorphism of the vitamin D receptor (VDR) gene and arteriogenic erectile dysfunction, it is advised to investigate other VDR gene polymorphisms as well as alternative clinical subtypes of erectile dysfunction.
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Affiliation(s)
- Ahmed Rashad Elshahid
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Amr Mohamed Zaky
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | | | - Nabil Fathy Ismail
- Departement of Clinical Pathology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
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Huang YQ, Liu JL, Chen GX, Shen DT, Zhu W, Chen XL, Liu FB, Hou QK. Berberine Enhances Intestinal Mucosal Barrier Function by Promoting Vitamin D Receptor Activity. Chin J Integr Med 2024; 30:143-151. [PMID: 37046128 DOI: 10.1007/s11655-023-3547-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2022] [Indexed: 04/14/2023]
Abstract
OBJECTIVE To evaluate if berberine can act on vitamin D receptors (VDR) and thereby regulate the expression of tight junction proteins (TJPs) in irritable bowel syndrame-diarrhea-predominant (IBS-D) rats. METHODS The newborn rats were induced into IBS-D rat model via neonatal maternal separation combined with acetic acid chemical stimulation. After modeling, the model was evaluated and rats were divided into the control group and berberine treatment groups (0.85, 1.7 and 3.4 mg/kg, once a day for 2 weeks). The distal colon was obtained and colonic epithelial cells (CECs) were isolated and cultured after IBS-D model evaluation. The vitamin D receptor response element (VDRE) reporter gene was determined in the CECs of IBS-D rats to analyze the effect of berberine on the VDRE promoter. VDR overexpression or silencing technology was used to analyze whether VDR plays a role in promoting intestinal barrier repair, and to determine which region of VDR plays a role in berberine-regulated intestinal TJPs. RESULTS The IBS-D rat model was successfully constructed and the symptoms were improved by berberine in a dose-dependent manner (P<0.05). The activity of VDRE promoter was also effectively promoted by berberine (P<0.05). Berberine increased the expression of TJPs in IBS-D CECs (P<0.05). VDR expression was significantly increased after transfection of different domains of VDR when compared to normal control and basic plasmid groups (all P<0.05). RT-qPCR and Western blot results showed that compared with the blank group, expressions of occludin and zonula occludens-1 were significantly higher in VDR containing groups (all P<0.05). Berberine plus pCMV-Myc-VDR-N group exerted the highest expression levels of occludin and zonula occludens-1 (P<0.05). CONCLUSION Berberine enhances intestinal mucosal barrier function of IBS-D rats by promoting VDR activity, and the main site of action is the N-terminal region of VDR.
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Affiliation(s)
- Yong-Quan Huang
- Graduate School, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
- Department of Orthopedics, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Jia-Lin Liu
- Graduate School, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Geng-Xin Chen
- Department of Orthopedics, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Dan-Ting Shen
- Graduate School, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Wang Zhu
- Graduate School, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Xin-Lin Chen
- Department of Preventive Medicine and Health Statistics, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Feng-Bin Liu
- Department of Gastroenterology, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Qiu-Ke Hou
- Department of Gastroenterology, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
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Dang R, Wang J, Tang M, Han W, Jiang P. Vitamin D Receptor Activation Attenuates Olanzapine-Induced Dyslipidemia in Mice Through Alleviating Hepatic Endoplasmic Reticulum Stress. Adv Biol (Weinh) 2023; 7:e2300228. [PMID: 37565702 DOI: 10.1002/adbi.202300228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/02/2023] [Indexed: 08/12/2023]
Abstract
The involvement of vitamin D (VD) signaling in atypical antipsychotics (AAPs)-induced metabolic disturbances has been previously established. This study aims to elucidate the role of VD in maintaining endoplasmic reticulum (ER) homeostasis and its impact on AAPs-induced metabolic adverse effects. Female C57BL/6 mice receive either calcitriol or vehicle one week prior to co-treatment with olanzapine (OLZ) for an additional four weeks. Metabolic parameters, hepatic ER homeostasis, and the SREBPs pathway are assessed through biochemical assays and protein expression profiling. HepG2 cells are transfected with vitamin D receptor (VDR) siRNA for VDR knockdown. OLZ-treated HepG2 cells are exposed to calcitriol to examine its effects on SREBPs and the unfolded protein response (UPR) pathways. VDR activation by calcitriol reduces OLZ-induced hepatic ER stress, leading to decreased SREBPs activity and lipid accumulation. Conversely, the knockdown of VDR in HepG2 cells diminishes the protective effects of calcitriol against OLZ-induced ER stress and SREBPs activation. This resulted in sustained UPR activation, elevated cleaved SREBPs levels, and increased lipid accumulation. These findings highlight an essential role of VDR signaling in the beneficial effects of VD on OLZ-induced metabolic side effects. Targeting VDR to resolve ER stress is likely an applicable therapeutic strategy for AAPs-induced metabolic disturbances.
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Affiliation(s)
- Ruili Dang
- Translational Pharmaceutical Laboratory, Jining First People's Hospital, Shandong First Medical University, Jining, 272000, China
- Institute of Translational Pharmacy, Jining Medical Research Academy, Jining, 272000, China
| | - Jing Wang
- Translational Pharmaceutical Laboratory, Jining First People's Hospital, Shandong First Medical University, Jining, 272000, China
- Institute of Translational Pharmacy, Jining Medical Research Academy, Jining, 272000, China
| | - Mimi Tang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Wenxiu Han
- Translational Pharmaceutical Laboratory, Jining First People's Hospital, Shandong First Medical University, Jining, 272000, China
- Institute of Translational Pharmacy, Jining Medical Research Academy, Jining, 272000, China
| | - Pei Jiang
- Translational Pharmaceutical Laboratory, Jining First People's Hospital, Shandong First Medical University, Jining, 272000, China
- Institute of Translational Pharmacy, Jining Medical Research Academy, Jining, 272000, China
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Song YJ, Zhang J, Xiao J, Feng H, Xu Z, Nie P, Chang MX. Piscine Vitamin D Receptors Vdra/Vdrb in the Absence of Vitamin D Are Utilized by Grass Carp Reovirus for Promoting Viral Replication. Microbiol Spectr 2023; 11:e0128723. [PMID: 37466438 PMCID: PMC10433867 DOI: 10.1128/spectrum.01287-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/23/2023] [Indexed: 07/20/2023] Open
Abstract
The vitamin D receptor (VDR) plays a pivotal role in the biological actions of vitamin D (VitD). However, little is known about the functions of VDR in the production of viral inclusion bodies (VIBs). Using a representative strain of grass carp reovirus (GCRV) genotype I, GCRV-873, we show that GCRV-873 recruits grass carp Vdrs for promoting the production of VIBs in the absence of VitD. Inhibition of cholesterol synthesis by lovastatin impairs the production of VIBs and blocks the effects of grass carp Vdrs in promoting the production of VIBs in the absence of VitD. Furthermore, grass carp Vdrs are found to form the Vdra-Vdrb heterodimer, which is vital for 3-hydroxy-3-methylglutaryl-coenzyme A reductase (hmgcr)-dependent cholesterol synthesis and GCRV replication. Intriguingly in the presence of VitD, grass carp Vdra but not Vdrb forms the heterodimer with the retinoid X receptor beta b (Rxrbb), which induces the transcription of those genes involved in the RIG-I-like receptor (RLR) antiviral signaling pathway for inhibiting GCRV infection. Furthermore, the VitD-activated Vdra-Vdrb heterodimer attenuates the transcription of the RLR antiviral signaling pathway induced by VitD. In the presence of VitD, a balance between the Vdra-Rxrbb heterodimers as coactivators and Vdra-Vdrb heterodimers as corepressors in affecting the transcriptional regulation of the RLR antiviral signaling pathway may eventually determine the outcome of GCRV infection. Transfection with VitD can abolish the effect of grass carp Vdrs in promoting GCRV replication in a dose-dependent manner. Taken together, these findings demonstrate that GCRV utilizes host Vdrs to increase hmgcr-dependent cholesterol synthesis for promoting its replication, which can be prevented by VitD treatment. IMPORTANCE Grass carp reovirus (GCRV) is the causative agent of grass carp hemorrhagic disease, which seriously harms freshwater fish. Although many positive or negative regulators of GCRV infection have been identified in teleosts, little is known about the molecular mechanisms by which GCRV utilizes host factors to generate its infectious compartments beneficial for viral replication and infection. Here, we show that in the absence of VitD, the GCRV-873 strain utilizes host vitamin D receptors Vdra/Vdrb to increase hmgcr-dependent cholesterol synthesis for promoting the production of VIBs, which are important functional sites for aquareovirus replication and assembly. The negative regulation of Vdrs during viral infection can be prevented by VitD treatment. Thus, this present work broadens understanding of the pivotal roles of Vdrs in the interaction between the host and GCRV in the absence or presence of VitD, which might provide a rational basis for developing novel anti-GCRV strategies.
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Affiliation(s)
- Yun Jie Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jie Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Jun Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Hao Feng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Zhen Xu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Pin Nie
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
- Innovation Academy for Seed Design, Chinese Academy of Sciences, Wuhan, China
| | - Ming Xian Chang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
- Innovation Academy for Seed Design, Chinese Academy of Sciences, Wuhan, China
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Liu Y, Zhu S, Liu J, Chen Y, Zhong S, Lian D, Liang J, Huang S, Hou S. Vitexin Regulates Angiogenesis and Osteogenesis in Ovariectomy-Induced Osteoporosis of Rats via the VDR/PI3K/AKT/eNOS Signaling Pathway. J Agric Food Chem 2023; 71:546-556. [PMID: 36538589 DOI: 10.1021/acs.jafc.2c07005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
It is extremely important to promote angiogenesis-dependent osteogenesis and ameliorate bone loss for the prevention and treatment of osteoporosis (OP) development. Vitexin, as one of the major active components in pigeonpea leave, promoted the proliferation of osteoblast and HUVECs in hypoxia. The present study aimed to investigate the effect of vitexin on alleviating osteoporosis in ovariectomized (OVX) rats and further explore its underlying mechanisms. Herein, the OVX rat model was established and treated with vitexin (10 mg kg-1) for 3 months. After being sacrificed, we performed hematoxylin-eosin (H&E) staining and micro-computed tomography (micro-CT) to assess bone mass, which found that trabecular bone was damaged in the OVX rat model. Vitexin could repair bone injury and promote osteoblast biochemical indicators and angiogenesis indicators. Furthermore, EAhy926 cells were used to further explore the effect of vitexin on improving hypoxia-induced endothelial injury in vitro. Vitexin had a protective effect on hypoxia-treated EAhy926 cells and up-regulated vitamin D receptor (VDR) signaling and promoted phosphorylation of phosphatidylinositol-3-kinase (PI3K), protein kinase B (AKT), and endothelial NO synthase (eNOS), which enhanced endothelial cell migration and tube formation. VDR small-interfering RNA (siRNA) transfection significantly decreased both VDR and p-eNOS proteins, and VDR siRNA transfection + vitexin could not further increase VDR and downstream proteins. Overall, this study presented that vitexin regulates angiogenesis and osteogenesis in ovariectomy-induced osteoporosis of rats via the VDR/eNOS signaling pathway.
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Affiliation(s)
- Ying Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Shumin Zhu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Jiaying Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Yonger Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Shaowen Zhong
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Dawei Lian
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, PR China
| | - Jian Liang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, PR China
| | - Song Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, PR China
| | - Shaozhen Hou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
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Nudy M, Xie R, O'Sullivan DM, Jiang X, Appt S, Register TC, Kaplan JR, Clarkson TB, Schnatz PF. Association between coronary artery vitamin D receptor expression and select systemic risks factors for coronary artery atherosclerosis. Climacteric 2021; 25:369-375. [PMID: 34694941 DOI: 10.1080/13697137.2021.1985992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE The aim of this study is to analyze the association between coronary artery vitamin D receptor (VDR) expression and systemic coronary artery atherosclerosis (CAA) risk factors. METHODS Female cynomolgus monkeys (n = 39) consumed atherogenic diets containing the women's equivalent of 1000 IU/day of vitamin D3. After 32 months consuming the diets, each monkey underwent surgical menopause. After 32 postmenopausal months, CAA and VDR expression were quantified in the left anterior descending coronary artery. Plasma 25OHD3, lipid profiles and serum monocyte chemotactic protein-1 (MCP-1) were measured. RESULTS In postmenopausal monkeys receiving atherogenic diets, serum MCP-1 was significantly elevated compared with baseline (482.2 ± 174.2 pg/ml vs. 349.1 ± 163.2 pg/ml, respectively; p < 0.001; d = 0.79) and at the start of menopause (363.4 ± 117.2 pg/ml; p < 0.001; d = 0.80). Coronary VDR expression was inversely correlated with serum MCP-1 (p = 0.042). Additionally, the change of postmenopausal MCP-1 (from baseline to necropsy) was significantly reduced in the group with higher, compared to below the median, VDR expression (p = 0.038). The combination of plasma 25OHD3 and total plasma cholesterol/high-density lipoprotein cholesterol was subsequently broken into low-risk, moderate-risk and high-risk groups; as the risk increased, the VDR quantity decreased (p = 0.04). CAA was not associated with various atherogenic diets. CONCLUSION Coronary artery VDR expression was inversely correlated with markers of CAA risk and inflammation, including MCP-1, suggesting that systemic and perhaps local inflammation in the artery may be associated with reduced arterial VDR expression.
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Affiliation(s)
- M Nudy
- Heart and Vascular Institute, Division of Cardiology, Penn State College of Medicine, Hershey Medical Center, Hershey, PA, USA
| | - R Xie
- Department of ObGyn, Reading Hospital, Reading, PA, USA
| | | | - X Jiang
- Department of ObGyn, Reading Hospital, Reading, PA, USA
| | - S Appt
- Department of Pathology/Comparative Medicine, Wake Forest University, Winston-Salem, NC, USA
| | - T C Register
- Department of Pathology/Comparative Medicine, Wake Forest University, Winston-Salem, NC, USA
| | - J R Kaplan
- Department of Pathology/Comparative Medicine, Wake Forest University, Winston-Salem, NC, USA
| | - T B Clarkson
- Department of Pathology/Comparative Medicine, Wake Forest University, Winston-Salem, NC, USA
| | - P F Schnatz
- Department of ObGyn, Reading Hospital, Reading, PA, USA.,Internal Medicine, Reading Hospital, Reading, PA, USA.,Department of ObGyn, Sidney Kimmel Medical College - Thomas Jefferson University, Philadelphia, PA, USA.,Internal Medicine, Sidney Kimmel Medical College - Thomas Jefferson University, Philadelphia, PA, USA
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Messaritakis I, Koulouridi A, Sfakianaki M, Vogiatzoglou K, Gouvas N, Athanasakis E, Tsiaoussis J, Xynos E, Mavroudis D, Tzardi M, Souglakos J. The Role of Vitamin D Receptor Gene Polymorphisms in Colorectal Cancer Risk. Cancers (Basel) 2020; 12:E1379. [PMID: 32471257 DOI: 10.3390/cancers12061379] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 12/12/2022] Open
Abstract
Vitamin D deficiency has been associated with increased colorectal cancer (CRC) incidence risk and mortality. Vitamin D mediates its action through the binding of the vitamin D receptor (VDR), and polymorphisms of the VDR might explain these inverse associations. The aim of the study was the investigation of the relevance of rs731236; Thermus aquaticus I (TaqI), rs7975232; Acetobacter pasteurianus sub. pasteurianus I (ApaI), rs2228570; Flavobacterium okeanokoites I (FokI) and rs1544410, Bacillus stearothermophilus I (BsmI) polymorphisms of the VDR gene to colorectal carcinogenesis (CRC) and progression. Peripheral blood was obtained from 397 patients with early operable stage II/III (n = 202) and stage IV (n = 195) CRC. Moreover, samples from 100 healthy donors and 40 patients with adenomatous polyps were also included as control groups. Genotyping in the samples from patients and controls was performed using polymerase chain reaction-restriction fragment length polymorphisms (PCR-RFLP). A significant association was revealed between all four polymorphisms and cancer. Individuals with homozygous mutant (tt, aa, ff or bb) genotypes were more susceptible to the disease (p < 0.001). All of the mutant genotypes detected were also significantly associated with stage IV (p < 0.001), leading to significantly decreased survival (p < 0.001). Moreover, all four polymorphisms were significantly associated with KRAS (Kirsten ras oncogene) mutations and Toll-like receptor (TLR2, TLR4 and TLR9) genetic variants. In multivariate analysis, tt, aa and ff genotypes emerged as independent factors associated with decreased overall survival (OS) (p = 0.001, p < 0.001 and p = 0.001, respectively). The detection of higher frequencies of the VDR polymorphisms in CRC patients highlights the role of these polymorphisms in cancer development and progression.
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Messaritakis I, Vogiatzoglou K, Tsantaki K, Ntretaki A, Sfakianaki M, Koulouridi A, Tsiaoussis J, Mavroudis D, Souglakos J. The Prognostic Value of the Detection of Microbial Translocation in the Blood of Colorectal Cancer Patients. Cancers (Basel) 2020; 12:E1058. [PMID: 32344707 PMCID: PMC7226464 DOI: 10.3390/cancers12041058] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/20/2020] [Accepted: 04/23/2020] [Indexed: 02/07/2023] Open
Abstract
Dysbiosis has been associated with various diseases and is of major health importance. Dysbiosis leads to microbial translocation, which is the passage of microorganisms, their fragments, or their metabolites from the intestinal lumen into the blood circulation and other sites. The aim of the study was to determine whether microbial translocation occurs in stage II/III-IV colorectal cancer (CRC) patients. The aim was also to evaluate the usefulness of blood PCR for diagnosis of such translocation and correlate the presence of toll-like receptor/vitamin D receptor (TLR/VDR) gene polymorphisms with microbial DNA fragments detected in the blood of CRC patients. Three hundred and ninety-seven CRC patients enrolled in the study. Peripheral blood DNA was analyzed using PCR for the amplification of genomic DNA encoding 16S rRNA, the β-galactosidase gene of Escherichia coli, glutamine synthase gene of Bacteroides fragilis, and 5.8S rRNA of Candida albicans. Significantly higher rates of all microbial fragments, but E. coli, detected were observed in the CRC patients (p < 0.001); such detection of all four microbial fragments was also significantly associated with the metastatic disease (p < 0.001), leading to shorter survival rates (p < 0.001). Tumor location in the right colon also significantly correlated with shorter survival (p = 0.016). Individuals with homozygous mutant alleles of TLR/VDR polymorphisms had significantly higher detection rates of microbial DNA fragments. The detection of microbial DNA fragments in CRC patients highlighted the role of these microbes in cancer development, progression, and patients' survival.
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Affiliation(s)
- Ippokratis Messaritakis
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
| | - Konstantinos Vogiatzoglou
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
| | - Konstantina Tsantaki
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
| | - Agapi Ntretaki
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
| | - Maria Sfakianaki
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
| | - Asimina Koulouridi
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
| | - John Tsiaoussis
- Laboratory of Anatomy, Medical School, University of Crete, 70013 Heraklion, Crete, Greece;
| | - Dimitrios Mavroudis
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
- Department of Medical Oncology, University General Hospital of Heraklion, 70013 Heraklion, Crete, Greece
| | - John Souglakos
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Crete, Greece; (K.V.); (K.T.); (A.N.); (M.S.); (A.K.); (D.M.); (J.S.)
- Department of Medical Oncology, University General Hospital of Heraklion, 70013 Heraklion, Crete, Greece
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Imam AA, Ibrahim HE, Farghaly MAA, Alkholy UM, Gawish HH, Abdalmonem N, Sherif AM, Ali YF, Hamed ME, Waked NM, Fathy MM, Khalil AM, Noah MA, Hegab MS, Ibrahim BR, Nabil RM, Fattah LA. Vitamin D receptor gene FokI polymorphism in Egyptian children and adolescents with SLE: A case-control study. Lupus 2017; 26:1426-1434. [PMID: 28799838 DOI: 10.1177/0961203317725588] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Childhood-onset systemic lupus erythematosus (cSLE) is a lifelong autoimmune disorder. The vitamin D receptor (VDR) gene is a potential candidate gene for cSLE susceptibility. In this study, we aimed to investigate the FokI polymorphism in the VDR gene in Egyptian children and adolescents with SLE, to determine whether this polymorphism could be a genetic marker for cSLE susceptibility or disease activity and we also measured the serum level of 25-hydroxyvitamin D [25(OH) D] to assess its relation to such polymorphism. Methods This was a case-control study, which included 300 patients with cSLE and 300 age, sex, and ethnicity-matched healthy controls. All participants were genotyped for the VDR gene FokI (rs2228570) polymorphism by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), while the serum [25(OH) D] levels were measured by enzyme-linked immunosorbent assay (ELISA). Results The VDR FokI FF genotype and F allele were overrepresented among cSLE patients compared with the controls, [odds ratio (OR) = 2.7; 95% confidence interval (CI): 1.6-4.4 for the FF genotype; p = 0.000; and OR = 1.6; 95% CI: 1.27-2.05 for the F allele; p = 0.000, respectively]. We found a significant association between VDR FokI FF genotype with lupus nephritis (OR: 4.8; 95% CI: 2.2-10.6; p = 0.002); and high disease activity index score ( p = 0.01). Conclusions The FokI polymorphism in the VDR gene may contribute to susceptibility to SLE in Egyptian children and adolescents. Moreover, the FF genotype constituted a risk factor for the development of lupus nephritis and was associated with low serum [25(OH) D] levels as well as higher disease activity index score among studied patients with cSLE.
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Affiliation(s)
- A A Imam
- 1 Department of Pediatrics, Al Azhar Faculty of Medicine-Girls, Cairo. Egypt
| | - H E Ibrahim
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - M A A Farghaly
- 3 Department of Pediatrics, Faculty of Medicine, 435387 Aswan University , Egypt
| | - U M Alkholy
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - H H Gawish
- 4 Department of Clinical Pathology, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - N Abdalmonem
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - A M Sherif
- 5 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - Y F Ali
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - M E Hamed
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - N M Waked
- 6 Department of Pediatrics, Faculty of Medicine, 110129 October 6 University , Egypt
| | - M M Fathy
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - A M Khalil
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - M A Noah
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - M S Hegab
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - B R Ibrahim
- 2 Department of Pediatrics, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - R M Nabil
- 4 Department of Clinical Pathology, Faculty of Medicine, 68865 Zagazig University , Egypt
| | - L A Fattah
- 7 Department of Microbiology and Immunology, Faculty of Medicine, 68865 Zagazig University , Egypt
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Fawzi MMT, Mahmoud SB, Ahmed SF, Shaker OG. Assessment of vitamin D receptors in alopecia areata and androgenetic alopecia. J Cosmet Dermatol 2016; 15:318-323. [PMID: 27151518 DOI: 10.1111/jocd.12224] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Alopecia areata (AA) is a frequent autoimmune disease, the pathogenesis of which is still unknown. Androgenetic alopecia (AGA) is a noncicatricial type of patterned hair loss. Expression of vitamin D receptors (VDRs) on keratinocytes is essential for maintenance of normal hair cycle, especially anagen initiation. OBJECTIVE To assess VDRs in the skin and blood of AA and AGA patients, in order to evaluate their possible role in these hair diseases. METHODS This study recruited 20 patients with AA, 20 patients with AGA, and 20 healthy controls. Blood samples and lesional scalp biopsies were taken from all participants for detection of VDR levels. RESULTS Serum and tissue VDR levels were lower in AA as well as AGA patients when compared to controls (P = 0.000). Serum and tissue VDR were positively correlated in each group. Tissue VDR was significantly lower in female patients with AA than males (P = 0.046) although serum and tissue VDR levels were significantly higher in female AGA patients than males (P = 0.004). CONCLUSION This study suggests an important role for VDR in the pathogenesis of AA and AGA through documenting lower serum and tissue VDR levels in AA and AGA patients in comparison with controls.
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Abstract
Vitamin D has known importance to bone health including calcium and phosphate homeostasis and appears to have a role in skeletal muscle health as well. Cases of vitamin D deficiency and insufficiency have been associated with poor muscle health. While the exact effects and mechanism of action remains controversial, current data lean towards insufficient vitamin D playing a role in musculoskeletal pain, sarcopenia, myopathy, falls and indirectly via cerebellar and cognitive dysfunction. Sophisticated experimental techniques have allowed detection of the vitamin D receptor (VDR) on skeletal muscle and cerebellar tissue, which if validated in further large studies, could confirm the mechanism of vitamin D in these associations. While further study is required, vitamin D repletion can have a substantial impact on muscle as well as bone health.
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Affiliation(s)
- S Bobo Tanner
- Vanderbilt University Medical Center - Rheumatology and Allergy, 2611 West End Ave, Suite 210, Nashville, Tennessee 37203, USA
| | - Susan A Harwell
- Vanderbilt University Medical Center - Rheumatology, 1161 21st Avenue So., T-3113 MCN, Nashville, Tennessee 37232, USA
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de Bragança AC, Volpini RA, Canale D, Gonçalves JG, Shimizu MHM, Sanches TR, Seguro AC, Andrade L. Vitamin D deficiency aggravates ischemic acute kidney injury in rats. Physiol Rep 2015; 3:3/3/e12331. [PMID: 25780095 PMCID: PMC4393165 DOI: 10.14814/phy2.12331] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Vitamin D deficiency (VDD) increases the risk of death in hospitalized patients. Renal ischemia/reperfusion injury (IRI) induces acute kidney injury (AKI), which activates cell cycle inhibitors, including p21, a cyclin-dependent kinase inhibitor and genomic target of 25-hydroxyvitamin D, which is in turn a potent immunomodulator with antiproliferative effects. In this study, we assess the impact of VDD in renal IRI. Wistar rats were divided into groups, each evaluated for 30 days: control (receiving a standard diet); VDD (receiving a vitamin D-free diet); IRI (receiving a standard diet and subjected to 45-min bilateral renal ischemia on day 28); and VDD + IRI (receiving a vitamin D-free diet and subjected to 45-min bilateral renal ischemia on day 28). At 48 h after IRI, animals were euthanized; blood, urine, and kidney tissue samples were collected. Compared with IRI rats, VDD + IRI rats showed a more severe decrease in glomerular filtration rate, greater urinary protein excretion, a higher kidney/body weight ratio and lower renal aquaporin 2 expression, as well as greater morphological damage, characterized by increased interstitial area and tubular necrosis. Our results suggest that the severity of tubular damage in IRI may be associated with downregulation of vitamin D receptors and p21. VDD increases renal inflammation, cell proliferation and cell injury in ischemic AKI.
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Affiliation(s)
- Ana Carolina de Bragança
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
| | - Rildo A Volpini
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
| | - Daniele Canale
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
| | - Janaína G Gonçalves
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
| | - Maria Heloisa M Shimizu
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
| | - Talita R Sanches
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
| | - Antonio C Seguro
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
| | - Lúcia Andrade
- Division of Nephrology, Laboratory of Basic Science LIM-12 University of São Paulo School of Medicine, São Paulo, Brazil
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Zhabagin M, Abilova Z, Askapuli A, Rakhimova S, Kairov U, Berikkhanova K, Terlikbayeva A, Darisheva M, Alenova A, Akilzhanova A. Vitamin D Receptor Gene Polymorphisms in Susceptibility to Tuberculosis in the Kazakh Population in Almaty and Almaty Area. Cent Asian J Glob Health 2014; 2:102. [PMID: 29805861 PMCID: PMC5960887 DOI: 10.5195/cajgh.2013.102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Introduction Vitamin D receptor (VDR) plays an important role in activating the immune response against various infectious agents. It is known that the active metabolite of ligand receptor Vitamin D (1,25 – dihydroxyvitamin D) is encoded by VDR and helps mononuclear phagocytes to suppress the intracellular growth of M. tuberculosis. The VDR gene harbors approximately 200 polymorphisms, some of which are linked to differences in receptor Vitamin D uptake and therefore can be considered as candidate disease risk variants. The relation between VDR gene polymorphisms and susceptibility to TB has been studied in different populations. There is not a great deal of information regarding the association of these SNPs with TB risk in the Kazakh population. The four most commonly investigated VDR polymorphisms in association with different diseases, including susceptibility to tuberculosis, are located in exon 2 (rs2228570 or FokI), intron 8 (rs1544410 or BsmI and rs7975232 or ApaI), and exon 9 (rs731236 or TaqI). The aim of our study was to determine whether these four VDR gene single nucleotide polymorphisms were associated with TB and whether they were a risk for the development of TB in the Kazakh Population in Almaty city and Almaty area. Methods This study was a hospital-based case-control analysis of 283 individuals (99 TB patients and 184 healthy controls). Genotyping was performed by Taqman SNP allelic discrimination using commercial TaqMan SNP Genotyping assays. Statistical analysis was conducted using SPSS Version 19.0 software. Results Genotype frequencies for the Kazakh population are close to world (HapMap) data on Asian populations. FokI and ApaI polymorphisms genotypes tend to be associated with TB risk under the co-dominant model [OR=1.18; 95%CI: (0.68, 2.07), p=0.15] for FokI and [OR=1.33; 95%CI: (0.61, 2.91), p=0.6] for ApaI. No significant association between the disease and TaqI, BsmI genotypes was observed. Conclusions In summary, we explored potential associations between SNPs in the VDR (FokI, ApaI) gene and susceptibility to tuberculosis in the Kazakh Population, which requires further detailed analysis with a larger sample size and greater geographic diversity including other regions of Kazakhstan.
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Affiliation(s)
- Maxat Zhabagin
- Center for Life Sciences, Nazarbayev University, Astana, Kazakhstan
| | - Zhannur Abilova
- Center for Life Sciences, Nazarbayev University, Astana, Kazakhstan
| | - Ayken Askapuli
- Center for Life Sciences, Nazarbayev University, Astana, Kazakhstan
| | - Saule Rakhimova
- Center for Life Sciences, Nazarbayev University, Astana, Kazakhstan
| | - Ulykbek Kairov
- Center for Life Sciences, Nazarbayev University, Astana, Kazakhstan
| | | | | | - Meruert Darisheva
- The Global Health Research Center of Central Asia, Almaty, Kazakhstan
| | - Arike Alenova
- National Center for Tuberculosis Problems, Almaty, Kazakhstan
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Akilzhanova A, Abilova Z, Sikhayeva N, Shtefanov I, Makishev A, Adylkhanov T, Rakhypbekov T, Zhumadilov Z, Momynaliev K. Vitamin D Receptor Gene Polymorphisms and Breast Cancer Risk in Kazakhstan. Cent Asian J Glob Health 2014; 2:95. [PMID: 29805854 PMCID: PMC5960914 DOI: 10.5195/cajgh.2013.95] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Introduction The steroid hormone 1,25-dihydroxyvitamin D3 is thought to protect against breast cancer. The activity of 1,25-dihydroxyvitamin D3 is mediated via the vitamin D receptor (VDR), and a number of polymorphisms in the VDR gene have been identified. These result in distinct genotypes, some of which may alter susceptibility to breast cancer. Two common single nucleotide polymorphisms (SNP) in the VDR gene (VDR), rs1544410 (BsmI) and rs2228570 (FokI), have been inconsistently associated with breast cancer risk. Increased risk has been reported for the FokI ff genotype, which encodes a less transcriptionally active isoform of VDR. A reduced risk has been reported for the BsmI BB genotype which may influence VDR mRNA stability. Aim We have investigated whether specific VDR gene polymorphisms are associated with breast cancer risk in Kazakhstan women. Material and Methods In a case–control study, female breast cancer patients (315) and a female control group (n=604) were tested for two VDR polymorphisms. Statistical analysis was conducted using SPSS19.0. Results : The VDR rs2228570 (FokI) polymorphism was associated with an increased occurence of BC [rs2228570 (folk) ff vs. FF genotype: OR=1.71; 95% CI=1.21–2.43]. No association was noted between rs1544410 (BsmI) BB and breast cancer risk [OR=0.68; 95% CI=0.49–0.95]. Conclusion : Although the factors that increase breast cancer susceptibility remain uncertain, future large studies should integrate genetic variation in VDR with biomarkers of vitamin D status. Additional testing on the effect of varying genotypes on the functional mechanisms of the VDR could help to improve future testing and treatment of woman at risk for breast cancer.
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Affiliation(s)
| | - Zhannur Abilova
- Center for Life Sciences, Nazarbayev University, Astana, Kazakhstan
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