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Kohno K, Yamada W, Ishitsuka A, Sekine M, Virgona N, Ota M, Yano T. Tocotrienol-rich fraction from annatto ameliorates expression of lysyl oxidase in human osteoblastic MG-63 cells. Biosci Biotechnol Biochem 2019; 84:526-535. [PMID: 31743080 DOI: 10.1080/09168451.2019.1693252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Lysyl oxidase (LOX) is required for the formation of bone collagen cross-links. Inactivation of the LOX gene in osteoblasts by DNA methylation and JAK signaling has been reported to cause loss of cross-links and an increased risk of fractures. Tocotrienols (T3s) have proven benefits on bone strength, but their potential effects on LOX remain largely unknown. Thus, the present study investigates the in vitro effects of T3s on LOX expression in human osteoblastic MG-63 cells. Results indicated that Tocotrienol-Rich Fraction (TRF), the δ-T3 rich oil extracted from Annatto was the most effective and significantly increased LOX expression. TRF treatment decreased de-novo methyltransferases (DNMTs), DNMT3A and DNMT3B levels. In addition, TRF significantly inhibited JAK2 activation and decreased expression of Fli1, a transcription factor of DNMTs. We conclude that TRF induced an increase in LOX expression via inhibition of de-novo methylation and reduction of Fli1 expression by the inactivation of JAK2.Abbreviations: CpG: cytosine-guanine dinucleotide; DNMT: DNA methyltransferase; Fli1: friend leukemia virus integration 1; JAK: janus kinase; LOX: lysyl oxidase; PCR: polymerase chain reaction; STAT: signal transducers and activators of transcription; T3s: tocotrienols; TPs: tocopherols; TRF: Tocotrienol-Rich Fraction.
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Affiliation(s)
- Kakeru Kohno
- Graduate School of Food and Nutritional Sciences, Toyo University, Itakura, Gunma, Japan
| | - Wakana Yamada
- Research Institute for Life Innovation, Toyo University, Itakura, Gunma, Japan
| | - Aya Ishitsuka
- Research Institute for Life Innovation, Toyo University, Itakura, Gunma, Japan
| | - Miki Sekine
- Research Institute for Life Innovation, Toyo University, Itakura, Gunma, Japan
| | - Nantiga Virgona
- Research Institute for Life Innovation, Toyo University, Itakura, Gunma, Japan
| | - Masako Ota
- Graduate School of Food and Nutritional Sciences, Toyo University, Itakura, Gunma, Japan.,Research Institute for Life Innovation, Toyo University, Itakura, Gunma, Japan
| | - Tomohiro Yano
- Graduate School of Food and Nutritional Sciences, Toyo University, Itakura, Gunma, Japan.,Research Institute for Life Innovation, Toyo University, Itakura, Gunma, Japan
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Fan S, Gao X, Chen P, Li X. Myricetin ameliorates glucocorticoid-induced osteoporosis through the ERK signaling pathway. Life Sci 2018; 207:205-211. [DOI: 10.1016/j.lfs.2018.06.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/28/2018] [Accepted: 06/05/2018] [Indexed: 12/14/2022]
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Prah A, Richards E, Griggs R, Simpson V. Enhancing Osteoporosis Efforts Through Lifestyle Modifications and Goal-setting Techniques. J Nurse Pract 2017. [DOI: 10.1016/j.nurpra.2017.07.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hip fracture incidence 2003-2013 and projected cases until 2050 in Austria: a population-based study. Int J Public Health 2016; 61:1021-1030. [PMID: 27549873 DOI: 10.1007/s00038-016-0878-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 03/11/2016] [Accepted: 08/16/2016] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVES Elevated hip fracture incidence is a major public health problem looming to aggravate in industrialized countries due to demographic developments. We report hip fracture incidence and expected future cases from Vorarlberg, the westernmost province of Austria, results potentially representative of Central European populations. METHODS Crude and standardized hip fracture incidence rates in Vorarlberg 2003-2013 are reported. Based on the age-specific incidence in 2013 or trends 2003-2013, we predict hip fractures till 2050. RESULTS Female age-standardized hip fracture incidence decreased 2005-2013, whereas for men, the trend was rather unclear. Uncorrected forecasts indicate that by 2050, female and male cases will each have more than doubled from 2015 in all demographic core scenarios. Corrected by incidence trends before 2013, cases are expected to drop among women but rise among men. CONCLUSIONS We anticipate rising hip fracture numbers in Vorarlberg within the next decades, unless prevention programs that presumably account for decreasing incidence rates, particularly among women since 2005, take further effect to counteract the predicted steady increase due to demographic changes. Concomitantly, augmented endeavors to target the male population by these programs are needed.
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Banna JC, Reicks M, Gunther C, Richards R, Bruhn C, Cluskey M, Wong SS, Misner S, Hongu N, Johnston NP. Evaluation of emotion-based messages designed to motivate Hispanic and Asian parents of early adolescents to engage in calcium-rich food and beverage parenting practices. Nutr Res Pract 2016; 10:456-63. [PMID: 27478554 PMCID: PMC4958650 DOI: 10.4162/nrp.2016.10.4.456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 02/29/2016] [Accepted: 03/01/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND/OBJECTIVES Setting healthful beverage expectations, making calcium-rich foods and beverages (CRF/B) available, and role modeling are parenting practices promoting calcium intake among early adolescents. This study aimed to evaluate emotion-based messages designed to motivate parents of early adolescents to perform these practices. SUBJECTS/METHODS Emotion-based messages were developed for each parenting practice and tested in 35 parents from 5 states. Findings were used to modify messages and develop a survey administered via Amazon MechanicalTurk to a convenience sample of Asian (n = 166) and Hispanic (n = 184) parents of children 10-13 years. Main outcome measures were message comprehension, motivation, relevance, acceptability, and novelty. Engagement in the parenting practices was also assessed. RESULTS Message comprehension was acceptable for the majority of parents. Most also agreed that messages were motivational (setting healthful beverage expectations (69.0%), making CRF/B available (67.4%), and role modeling (80.0%)), relevant and acceptable. About 30-50% indicated they had not seen the information before. Many parents indicated they were already engaging in the practices (> 70%). No racial/ethnic differences were observed for responses to messages or engaging in parenting practices. CONCLUSIONS Results indicate that emotion-based messages designed to motivate parents to engage in parenting practices that promote calcium intake among early adolescents were motivating, relevant, and acceptable.
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Affiliation(s)
- Jinan Corinne Banna
- Department of Human Nutrition, Food and Animal Sciences, 1955 East West Road, Agricultural Sciences 216, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Marla Reicks
- Food Science and Nutrition, University of Minnesota, Minneapolis, MN 55455, USA
| | - Carolyn Gunther
- Department of Human Nutrition, The Ohio State University, Columbus, OH 43210, USA
| | - Rickelle Richards
- Department of Nutrition, Dietetics and Food Science, Brigham Young University, Provo, UT 84602, USA
| | - Christine Bruhn
- Center for Consumer Research, Food Science and Technology, University of California-Davis, Davis, CA 95616, USA
| | - Mary Cluskey
- Nutrition, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Siew Sun Wong
- Nutrition, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Scottie Misner
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Nobuko Hongu
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - N Paul Johnston
- Department of Nutrition, Dietetics and Food Science, Brigham Young University, Provo, UT 84602, USA
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Prevention and Treatment of Bone Disease in Systemic Lupus Erythematosus. CURRENT TREATMENT OPTIONS IN RHEUMATOLOGY 2016. [DOI: 10.1007/s40674-016-0034-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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X-ray, CT and DXA study of bone loss on medieval remains from North-West Italy. Radiol Med 2015; 120:674-82. [DOI: 10.1007/s11547-015-0507-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 05/19/2014] [Indexed: 10/24/2022]
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Zhen D, Liu L, Guan C, Zhao N, Tang X. High prevalence of vitamin D deficiency among middle-aged and elderly individuals in northwestern China: its relationship to osteoporosis and lifestyle factors. Bone 2015; 71:1-6. [PMID: 25284157 DOI: 10.1016/j.bone.2014.09.024] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 09/26/2014] [Accepted: 09/29/2014] [Indexed: 01/14/2023]
Abstract
PURPOSE Vitamin D deficiency has reached epidemic proportions; this deficiency has been associated with osteoporosis and certain lifestyle factors in adults. This relationship is not well documented among the Lanzhou population in northwest China. This study sought to determine the prevalence of vitamin D deficiency and its risk factors in addition to its relationship with osteoporosis in a Chinese population living in Lanzhou. METHODS This cross-sectional study involved 2942 men and 7158 women aged 40-75years who were randomly selected from 3 communities in the Lanzhou urban district and examined medically. Levels of 25-hydroxy-vitamin D [25(OH)D] and other parameters were measured according to detailed inclusion criteria. Vitamin D deficiency was defined as serum 25(OH)D levels below 20ng/mL. Calcaneus bone mineral density (BMD) was measured by quantitative ultrasound (QUS). RESULTS The prevalence of vitamin D deficiency (25(OH)D levels <20ng/mL) was present in 75.2% of the entire study population. Vitamin D deficiency was more prevalent in women (79.7%) than in men (64%; P<0.001). Multiple logistic regression analysis revealed that the significant predictors of vitamin D deficiency included coronary heart disease (CHD), obesity, dyslipidemia, older age, female sex, and smoking (all P<0.05), whereas tea intake, moderate physical activity, milk intake, vitamin D supplementation and sun exposure were protective (all P<0.05). No significant difference in calcaneus BMD measured by QUS was noted between subjects with <20ng/mL and ≥20ng/mL vitamin D levels (0.53±0.13 vs. 0.54±0.13; P=0.089). The risk of having osteoporosis did not increase when vitamin D levels decreased from ≥20ng/mL to <20ng/mL after multiple adjustments (OR=1.00; 95% CI 0.85-1.16; P=0.357). CONCLUSIONS Vitamin D deficiency is prevalent in the middle-aged and elderly northwestern Chinese population and is largely attributed to CHD, obesity, dyslipidemia, older age, female sex, and smoking. Reduced 25(OH)D levels are not associated with an increased osteoporosis risk.
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Affiliation(s)
- Donghu Zhen
- Department of Endocrinology, The First Hospital of Lanzhou University, Donggang West Road, Lanzhou 730000, Gansu, People's Republic of China.
| | - Lijuan Liu
- Department of Endocrinology, The First Hospital of Lanzhou University, Donggang West Road, Lanzhou 730000, Gansu, People's Republic of China.
| | - Conghui Guan
- Department of Endocrinology, The First Hospital of Lanzhou University, Donggang West Road, Lanzhou 730000, Gansu, People's Republic of China.
| | - Nan Zhao
- Department of Endocrinology, The First Hospital of Lanzhou University, Donggang West Road, Lanzhou 730000, Gansu, People's Republic of China.
| | - Xulei Tang
- Department of Endocrinology, The First Hospital of Lanzhou University, Donggang West Road, Lanzhou 730000, Gansu, People's Republic of China.
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Shaltiel G, Bar-David E, Meiron OE, Waltman E, Shechter A, Aflalo ED, Stepensky D, Berman A, Martin BR, Weaver CM, Sagi A. Bone loss prevention in ovariectomized rats using stable amorphous calcium carbonate. Health (London) 2013. [DOI: 10.4236/health.2013.57a2003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Nguyen HTT, von Schoultz B, Nguyen TV, Dzung DN, Duc PTM, Thuy VT, Hirschberg AL. Vitamin D deficiency in northern Vietnam: prevalence, risk factors and associations with bone mineral density. Bone 2012; 51:1029-34. [PMID: 22878155 DOI: 10.1016/j.bone.2012.07.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 05/26/2012] [Accepted: 07/05/2012] [Indexed: 12/17/2022]
Abstract
PURPOSE Vitamin D deficiency has been linked to osteoporosis and also to the risk of cancer, autoimmune disorders and cardiovascular diseases. This study sought to determine the prevalence of, and risk factors for, vitamin D deficiency and its relationship with bone mineral density (BMD) in a Vietnamese population. METHODS This cross-sectional study involved 269 women and 222 men aged 13-83 years, who were randomly selected from urban and rural areas in northern Vietnam. Serum concentrations of 25-hydroxy-vitamin D [25(OH)D] and parathyroid hormone (PTH) were measured by electrochemiluminescence immunoassay. Vitamin D deficiency was defined as serum 25(OH)D levels below 20 ng/mL. BMD was measured by dual X-ray absorptiometry. RESULTS The prevalence of vitamin D deficiency in women was 30%, almost two-fold higher than in men (16%). Significant predictors of vitamin D deficiency in women were urban residency (p<0.01) and age less than 30 years (p<0.01), whereas use of contraceptive pills was protective (p<0.01). In men, winter season was the only significant predictor of vitamin D deficiency (p<0.01). In multiple linear regression analysis, serum levels of 25(OH)D were positively associated with BMD in both women (p<0.001) and men (p<0.001). CONCLUSIONS These data suggest that the prevalence of vitamin D deficiency is high in the Vietnamese population, and that part of this prevalence could be explained by low exposure to sunlight (urban residency and winter season). The high prevalence of vitamin D deficiency should raise the awareness of potentially important health issues such as osteoporosis within the Vietnamese society.
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Affiliation(s)
- Huong T T Nguyen
- Department of Women's and Children's Health, Karolinska Institutet, Sweden.
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Abstract
PURPOSE OF REVIEW Excessive bone mineral density (BMD) loss has been associated with schizophrenia, but its mechanisms and clinical implications are less clear. The aim of this review was to summarize the risk of osteoporosis and bone fractures in schizophrenia patients. Moreover, we aimed to examine the impact of antipsychotic-induced hyperprolactinemia on bone metabolism. RECENT FINDINGS Fifteen of 16 studies (93.8%) reported lower BMD or higher prevalence of osteoporosis in at least one region, or in at least one subgroup of schizophrenia patients compared with controls, but results were inconsistent across measured areas. Higher fracture risk was associated with schizophrenia in 2/2 studies (independently: n = 1), and 3/4 studies with antipsychotics. Reasons for this difference include insufficient exercise, poor nutrition, smoking, alcohol use, and low vitamin D levels. Altogether, 9/15 (60.0%) studies examining the relationship between antipsychotic-induced hyperprolactinemia and BMD loss found some effects of hyperprolactinemia. However, results were mixed, samples and effects were small, and only two studies were prospective. SUMMARY Schizophrenia is associated with reduced BMD and fracture risk. Prevention, early detection, and intervention are required. The relative contributions of antipsychotic-related hyperprolactinemia and unhealthy lifestyle behaviors remain unclear, needing to be assessed in well designed, prospective studies, including bone turnover markers as intermediary endpoints.
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Affiliation(s)
- Taishiro Kishimoto
- The Zucker Hillside Hospital, Psychiatry Research, North Shore - Long Island Jewish Health System, Glen Oaks, New York, USA
- Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Marc De Hert
- University Psychiatric Center, Catholic University Leuven, Kortenberg, Belgium
| | - Harold E. Carlson
- Endocrinology Division, Stony Brook University School of Medicine, Stony Brook, New York, USA
| | - Peter Manu
- The Zucker Hillside Hospital, Psychiatry Research, North Shore - Long Island Jewish Health System, Glen Oaks, New York, USA
- Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA
- Albert Einstein College of Medicine, Bronx, New York, USA
- Transilvania University, Brasov, Romania
| | - Christoph U. Correll
- The Zucker Hillside Hospital, Psychiatry Research, North Shore - Long Island Jewish Health System, Glen Oaks, New York, USA
- Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA
- Albert Einstein College of Medicine, Bronx, New York, USA
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
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