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https://www.readbyqxmd.com/read/28901487/association-of-srebp2-gene-polymorphisms-with-the-risk-of-osteonecrosis-of-the-femoral-head-relates-to-gene-expression-and-lipid-metabolism-disorders
#1
Yang Song, Zhenwu Du, Bingpeng Chen, Ming Ren, Qiwei Yang, Yujie Sui, Qingyu Wang, Ao Wang, Haiyue Zhao, Yanguo Qin, Guizhen Zhang
Although lipid metabolism disorders have been recognized as a primary factor of osteonecrosis of the femoral head (ONFH), the molecular pathogenesis remains unclear. Sterol regulatory element‑binding protein 2 (SREBP2) specifically regulates cholesterol and fatty acid metabolism to maintain lipid homeostasis. To explore the roles of the SREBP2 gene in the development of ONFH, the authors analyzed the gene polymorphism and gene expression of three tag single nucleotide polymorphisms of the SREBP2 gene, the serum lipids levels, and their associations with ONFH development in 182 ONFH patients and 179 healthy controls...
September 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28877324/t786c-mutation-in-the-endothelial-nitric-oxide-synthase-gene-in-patients-with-primary-osteonecrosis
#2
Amir M Khan, Joshua Choi, Richard A Freiberg, Charles J Glueck, Naila Goldenberg, Ping Wang
Mutations in the T786C endothelial nitric oxide synthase gene (eNOS) are associated with osteonecrosis and Prinzmetal's angina. Nitric oxide is necessary for bone health and ameliorates Prinzmetal's angina. This study compared mutations of T786C eNOS in 146 patients with primary osteonecrosis, 114 patients with Prinzmetal's angina, and 83 normal control subjects. Patients with osteonecrosis had more mutant eNOS alleles than control subjects (42% vs 22%, respectively; P<.0001) but had the same number of mutant alleles as patients with Prinzmetal's angina (42% vs 41%, respectively; P=...
September 6, 2017: Orthopedics
https://www.readbyqxmd.com/read/28856724/sirt1-herc4-locus-associated-with-bisphosphonate-induced-osteonecrosis-of-the-jaw-an-exome-wide-association-analysis
#3
Guang Yang, Issam Hamadeh, Joseph Katz, Alberto Riva, Peter Lakatos, Bernadett Balla, Janos Kosa, Mihaly Vaszilko, Gian Andrea Pelliccioni, Noa Davis, Taimour Y Langaee, Jan S Moreb, Yan Gong
Osteonecrosis of jaw (ONJ) is a rare but serious adverse drug side effect, mainly associated with the use of intravenous (IV) bisphosphonates (BPs). The purpose of this study was to identify genetic variants associated with ONJ in patients of European ancestry treated with IV BPs using a whole-exome sequencing (WES). The WES phase 1 included 44 multiple myeloma patients (22 ONJ cases and 22 controls) and WES phase 2 included 17 ONJ patients with solid tumors. Multivariable logistic regression analysis was performed to estimate the odds ratios (ORs) and 95% confidence intervals (CI) adjusting for age, gender and principal components for ancestry...
August 30, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28797104/increased-microrna-93-5p-inhibits-osteogenic-differentiation-by-targeting-bone-morphogenetic-protein-2
#4
Ying Zhang, Qiu-Shi Wei, Wei-Bin Ding, Lei-Lei Zhang, Hui-Chao Wang, Ying-Jie Zhu, Wei He, Yu-Na Chai, You-Wen Liu
BACKGROUND AND PURPOSE: Trauma-induced osteonecrosis of the femoral head (TIONFH) is a major complication of femoral neck fractures. Degeneration and necrosis of subchondral bone can cause collapse, which results in hip joint dysfunction in patients. The destruction of bone metabolism homeostasis is an important factor for osteonecrosis. MicroRNAs (miRNAs) have an important role in regulating osteogenic differentiation, but the mechanisms underlying abnormal bone metabolism of TIONFH are poorly understood...
2017: PloS One
https://www.readbyqxmd.com/read/28770971/apolipoprotein-a1-and-neuronal-nitric-oxide-synthase-gene-polymorphisms-and-hormone-related-osteonecrosis-of-the-femoral-head
#5
L Chen, P Wei, K Jiang, X-X Xia
OBJECTIVE: This study was designed to investigate the influence of several polymorphisms in neuronal NOS genes and apolipoprotein AI on the hormone-related osteonecrosis of the femoral head (ONFH) risk. PATIENTS AND METHODS: Peripheral blood mononuclear cell (PBMCs) samples extracted from hormone-related ONFH patients and controls were used to amplify fragments of the apolipoprotein A1 and neuronal NOS exon 7 and intron 4 using specific PCR primers. The products were analyzed by DNA sequencing and mapped to find the genotype distributions...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28628558/genetics-of-pleiotropic-effects-of-dexamethasone
#6
Laura B Ramsey, Stan Pounds, Cheng Cheng, Xueyuan Cao, Wenjian Yang, Colton Smith, Seth E Karol, Chengcheng Liu, John C Panetta, Hiroto Inaba, Jeffrey E Rubnitz, Monika L Metzger, Raul C Ribeiro, John T Sandlund, Sima Jeha, Ching-Hon Pui, William E Evans, Mary V Relling
OBJECTIVES: Glucocorticoids such as dexamethasone have pleiotropic effects, including desired antileukemic, anti-inflammatory, or immunosuppressive effects, and undesired metabolic or toxic effects. The most serious adverse effects of dexamethasone among patients with acute lymphoblastic leukemia are osteonecrosis and thrombosis. To identify inherited genomic variation involved in these severe adverse effects, we carried out genome-wide association studies (GWAS) by analyzing 14 pleiotropic glucocorticoid phenotypes in 391 patients with acute lymphoblastic leukemia...
August 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28614996/myeloma-patients-genes-increase-risk-for-osteonecrosis-of-the-jaw
#7
Melody Becnel, Elisabet Esteve Manasanch
No abstract text is available yet for this article.
June 14, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28604257/genetic-factors-related-with-early-onset-of-osteonecrosis-of-the-jaw-in-patients-with-multiple-myeloma-under-zoledronic-acid-therapy
#8
Efstathios Kastritis, Pelagia Melea, Tina Bagratuni, Ioannis Melakopoulos, Maria Gavriatopoulou, Maria Roussou, Magdalini Migkou, Evangelos Eleutherakis-Papaiakovou, Evangelos Terpos, Meletios A Dimopoulos
Specific genetic polymorphisms (SNPs) have been correlated with the development of bisphosphonate-related osteonecrosis of the jaw (BRONJ) in small series. We screened 140 myeloma patients (36 patients with and 104 without BRONJ) for the presence of previously identified SNPs in PPARG and CYP2C8 genes. All the patients received exclusively zolendronic acid (ZA) therapy and were followed prospectively for BRONJ. SNPs in both genes were associated with a higher risk of development of early BRONJ, occurring within less than 2 years of ZA therapy (59% vs...
June 11, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28543357/associations-of-tnf-%C3%AE-238-a-g-and-il-10-1082-g-a-genetic-polymorphisms-with-the-risk-of-nonfh-in-the-chinese-population
#9
Biao-Fang Wei, Zhi Feng, Wei Wei, Xiao Chen
The study aims to explore the roles of common polymorphisms of TNF-α (-238 A/G and -308 A/G) and IL-10 (-819 T/C and -1082 G/A) genes in the risk of non-traumatic osteonecrosis of the femoral head (NONFH). One-hundred and forty-seven NONFH patients and 135 healthy individuals were selected as the case and control groups. qRT-PCR and Western blotting techniques detected mRNA as well as protein expressions of TNF-α and IL-10 of each genotype in both the case and control groups. The GA genotype and the A allele of TNF-α -238 A/G were higher in the case group than in the control group...
May 24, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28514285/association-of-abcb1-c3435t-polymorphism-with-the-susceptibility-to-osteonecrosis-of-the-femoral-head-a-meta-analysis
#10
REVIEW
Yu Zhang, Hui Xie, Dewei Zhao, Benjie Wang, Lei Yang, Qingyu Meng
BACKGROUND AND OBJECTIVE: The exploration for the etiology of osteonecrosis of the femoral head (ONFH) has got some promising findings, but the morbidity of ONFH is still not under control. The C3435T polymorphism of ATP-binding cassette subfamily B member 1 (ABCB1) gene has been reported to possess significant influence on ONFH onset, but relevant outcomes remain conflicting rather than conclusive. Therefore, a meta-analysis was useful to pool these results together for a more reliable conclusion...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28498798/differential-expression-of-mir-195-5p-in-collapse-of-steroid-induced-osteonecrosis-of-the-femoral-head
#11
Pengfei Li, Pei Zhai, Zengjie Ye, Peng Deng, Yueguang Fan, Yirong Zeng, Zhihui Pang, Jianchun Zeng, Jie Li, Wenjun Feng
BACKGROUND: Femoral head collapse is a key reference point for determining a treatment regimen of femoral head osteonecrosis. However, there are no effective preventive measures and the efficacy of hip-preserving surgery is unsatisfactory due to the unclear mechanism of collapse. This study aimed to identify and validate miRNAs differentially expressed in collapse and non-collapse areas of the osteonecrotic femoral head, and to predict the target genes and pathways of these miRNAs. RESULTS: Nine samples passed the quality control test...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422712/combination-analysis-of-nos3-abcb1-and-il23r-polymorphisms-with-alcohol-induced-osteonecrosis-of-the-femoral-head-risk-in-chinese-males
#12
Yuan Wang, Xuejun Yang, Jianping Shi, Yan Zhao, Linlin Pan, Jinqiu Zhou, Guoqiang Wang, Jianzhong Wang
BACKGROUND: Common variants of multiple genes played a crucial role in osteonecrosis of the femoral head (ONFH) onset which was proved by many previous reports. We hypothesized that polymorphisms in NOS3, ABCB1 and IL23R were related to individual differences in alcohol sensitivity and the development of alcohol-induced ONFH. METHODS: In this case-control study, we evaluated 8 SNPs in three genes in the Chinese Han population including 355 male cases and 355 healthy male controls...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415829/association-between-alcohol-induced-osteonecrosis-of-femoral-head-and-risk-variants-of-mmps-in-han-population-based-on-a-case-control-study
#13
Jianzhong Wang, Xugang Shi, Hua Yang, Jieli Du, Yongri Ouyang, Hong Wang, Tianbo Jin, Chao Chen
The study aimed to evaluate the association between MMP gene superfamily and alcohol-induced osteonecrosis of femoral head (alcohol-induced ONFH) risk given its high prevalence, poor therapeutic effect, and serious clinical prognosis. 308 subjects (mean age, 49.47 years; males, 64.0%) who participated in our control group and 300 alcohol-induced ONFH patients (mean age, 43.29 years; males, 99.7%) formed the case group was enrolled to estimate by statistical analysis. We selected 23 single nucleotide polymorphisms (SNPs) from MMPs, and performed the chi-squared test, Fisher's exact test, t-test and genetic model analyses...
March 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415692/novel-akt-activator-sc-79-is-a-potential-treatment-for-alcohol-induced-osteonecrosis-of-the-femoral-head
#14
Yi-Xuan Chen, Shi-Cong Tao, Zheng-Liang Xu, Wen-Jing Yin, Yue-Lei Zhang, Jun-Hui Yin, You-Shui Gao, Chang-Qing Zhang
Alcohol is a leading risk factor for osteonecrosis of the femoral head (ONFH). We explored the molecular mechanisms underlying alcohol-induced ONFH and investigated the protective effect of the novel Akt activator SC-79 against this disease. We found that ethanol inhibited expression of the osteogenic genes RUNX2 and OCN, downregulated osteogenic differentiation, impaired the recruitment of Akt to the plasma membrane, and suppressed Akt phosphorylation at Ser473, thereby inhibiting the Akt/GSK3β/β-catenin signaling pathway in bone mesenchymal stem cells...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28346829/polymorphisms-in-the-glucocorticoid-receptor-gene-and-associations-with-glucocorticoid-induced-avascular-osteonecrosis-of-the-femoral-head
#15
Zhanqin Zhao, Yun Xue, Dun Hong, Hongjun Zhang, Zhigang Hu, Shunwu Fan, Haixiao Chen
AIMS: Individual sensitivity to glucocorticoid (GC) therapy might play a pivotal role in the development of GC-induced avascular necrosis of the femoral head (GANFH). In a growing number of studies, common polymorphisms of the glucocorticoid receptor gene (nuclear receptor subfamily 3 group C member 1 [NR3C1]) have been associated with variability in the individual sensitivity to GCs. However, whether the NR3C1 gene polymorphisms actually influence the susceptibility of GANFH remains unknown...
May 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28276593/association-between-sickle-cell-anemia-and-alpha-thalassemia-reveals-a-high-prevalence-of-the-%C3%AE-3-7-triplication-in-congolese-patients-than-in-worldwide-series
#16
Tite Minga Mikobi, Prosper Tshilobo Lukusa, Michel Ntetani Aloni, Aimé Lumaka, Pierre Zalagile Akilimali, Koenraad Devriendt, Gert Matthijs, Jean-Marie Mbuyi Muamba, Valerie Race
BACKGROUND: Information about the association with alpha thalassemia in sickle cell patients is unknown in the Democratic Republic of Congo. There is very little data on the alpha thalassemia in patients suffering from sickle cell anemia in Central Africa, and their consequences on the clinical expression of the disease. METHODS: A cross-sectional study was conducted in 106 sickle cell patients living in the country's capital Kinshasa. The diagnosis of sickle cell anemia was confirmed with a molecular test using PCR-RFLP (restriction fragment length polymorphism) technique...
March 9, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28207735/long-non-coding-rna-hotair-inhibits-mir-17-5p-to-regulate-osteogenic-differentiation-and-proliferation-in-non-traumatic-osteonecrosis-of-femoral-head
#17
Biaofang Wei, Wei Wei, Baoxiang Zhao, Xiaxia Guo, Song Liu
BACKGROUND AND AIM: The biological functions of non-coding RNAs (ncRNAs) have been widely identified in many human diseases. In the present study, the relationship between long non-coding RNA HOTAIR and microRNA-17-5p (miR-17-5p) and their roles in osteogenic differentiation and proliferation in non-traumatic osteonecrosis of femoral head (ONFH) were investigated. METHODS: The expression levels of HOTAIR and miR-17-5p in the mesenchymal stem cells (MSCs) derived from patients with non-traumatic ONFH and osteoarthritis (OA) were examined by real-time PCR...
2017: PloS One
https://www.readbyqxmd.com/read/28159588/bacterial-diversity-in-medication-related-osteonecrosis-of-the-jaw
#18
Fredrik Hallmer, Tore Bjørnland, Gunilla Andersson, Jonas P Becktor, Anne K Kristoffersen, Morten Enersen
OBJECTIVE: The aim was to study the association between microflora and medication-related osteonecrosis of the jaw (MRONJ) by using culture-independent molecular techniques to detect bacteria in necrotic bone lesions. STUDY DESIGN: Included were 18 consecutive patients with MRONJ, 10 with osteoporosis and 8 cancer patients. Bone biopsies were retrieved from the center of the necrotic bone and from visually healthy bone, and 16 S rRNA gene fragments from bacterial DNA were amplified with polymerase chain reaction...
December 7, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28139685/skeletal-site-specific-effects-of-zoledronate-on-in-vivo-bone-remodeling-and-in-vitro-bmscs-osteogenic-activity
#19
Xue Gong, Wanlu Yu, Hang Zhao, Jiansheng Su, Qing Sheng
Bisphosphonate-related osteonecrosis of the jaw (BRONJ) has been associated with long-term oral or intravenous administration of nitrogen-containing bisphosphonates (BPs). However, the pathogenesis of BRONJ remains unknown, and definitively effective treatment has not yet been established. Bisphosphonate-related osteonecrosis (BRON) tends to occur in maxillofacial bones. Why this occurs is still unclear. Here we show that zoledronate (Zol) treatment suppresses alveolar bone remodeling after tooth typical clinical and radiographic hallmarks of the human BRONJ, whereas enhances peripheral bone quantity in bone remodeling following injury in the same individuals, shown as increased cortical bone thickness, increased trabecular bone formation and accelerated bone defect repair...
January 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106828/bajijiasu-abrogates-osteoclast-differentiation-via-the-suppression-of-rankl-signaling-pathways-through-nf-%C3%AE%C2%BAb-and-nfat
#20
Guoju Hong, Lin Zhou, Xuguang Shi, Wei He, Haibin Wang, Qiushi Wei, Peng Chen, Longkai Qi, Jennifer Tickner, Li Lin, Jiake Xu
Pathological osteolysis is commonly associated with osteoporosis, bone tumors, osteonecrosis, and chronic inflammation. It involves excessive resorption of bone matrix by activated osteoclasts. Suppressing receptor activator of NF-κB ligand (RANKL) signaling pathways has been proposed to be a good target for inhibiting osteoclast differentiation and bone resorption. Bajijiasu-a natural compound derived from Morinda officinalis F. C. How-has previously been shown to have anti-oxidative stress property; however, its effect and molecular mechanism of action on osteoclastogenesis and bone resorption remains unclear...
January 19, 2017: International Journal of Molecular Sciences
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