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Kunimoto Y, Matamura R, Ikeda H, Horiguchi H, Fujii S, Kobune M, Fukudo M, Toda T. Adherence of denosumab treatment for low bone mineral density in Japanese people living with HIV: a retrospective observational study. J Pharm Health Care Sci 2023; 9:45. [PMID: 38057906 DOI: 10.1186/s40780-023-00315-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 10/22/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND Long-term care issues, specifically metabolic bone disorders, are a concern for people living with human immunodeficiency virus (PLWH) who undergo life-long antiretroviral therapy (ART). Previous clinical trials with denosumab, an anti-RANKL antibody inhibitor, have revealed its effectiveness in increasing bone mineral density (BMD) in patients with osteoporosis. However, there are limited data on adherence and effectiveness of denosumab treatment for osteoporosis in PLWH. Hence, this study aimed to investigate the adherence and effectiveness of denosumab treatment for osteoporosis in Japanese PLWH. METHODS This study is a retrospective exploratory analysis of 29 Japanese PLWH who initiated denosumab treatment for osteoporosis, between 2013 and 2021. The study included patients who received at least one dose of denosumab every 6 months. Adherence and persistence were defined as receiving two consecutive injections of denosumab 6 months ± 4 weeks apart and 6 months + 8 weeks apart, respectively. The primary outcome measure of the study was the adherence of denosumab treatment for 24 months. The secondary outcome measures included treatment persistence and BMD. The period after January 2020 was defined as the coronavirus disease 2019 (COVID-19) pandemic period, and its impact on adherence was investigated. RESULTS The treatment adherence rates at 12 and 24 months were 89.7% and 60.7%, respectively. By contrast, the treatment persistence at 12 and 24 months was 100% and 85.7%, respectively. More patients in the group who initiated denosumab treatment after the COVID-19 pandemic reached non-adherence than in the group who initiated denosumab treatment before the pandemic. BMD at the lumbar spine and femoral neck significantly increased compared to that at baseline, with median percentage changes of 8.7% (p < 0.001) and 3.5% (p = 0.001), respectively. CONCLUSIONS The results showed that patients in the study had a high rate of non-adherence but a lower rate of non-persistence. Additionally, PLWH on ongoing ART experienced increased BMD with denosumab treatment. This study provides an opportunity to improve future strategies for denosumab treatment in the Japanese PLWH.
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Affiliation(s)
- Yusuke Kunimoto
- Department of Pharmacy, Sapporo Medical University Hospital, Sapporo, 060-8543, Japan
| | - Ryosuke Matamura
- Department of Pharmacy, Sapporo Medical University Hospital, Sapporo, 060-8543, Japan
| | - Hiroshi Ikeda
- Department of Hematology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroto Horiguchi
- Department of Hematology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Satoshi Fujii
- Department of Pharmacy, Sapporo Medical University Hospital, Sapporo, 060-8543, Japan
| | - Masayoshi Kobune
- Department of Hematology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Masahide Fukudo
- Department of Pharmacy, Sapporo Medical University Hospital, Sapporo, 060-8543, Japan.
| | - Takaki Toda
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Japan
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Reyes A, Ortiz G, Duarte LF, Fernández C, Hernández-Armengol R, Palacios PA, Prado Y, Andrade CA, Rodriguez-Guilarte L, Kalergis AM, Simon F, Carreño LJ, Riedel CA, Cáceres M, González PA. Contribution of viral and bacterial infections to senescence and immunosenescence. Front Cell Infect Microbiol 2023; 13:1229098. [PMID: 37753486 PMCID: PMC10518457 DOI: 10.3389/fcimb.2023.1229098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023] Open
Abstract
Cellular senescence is a key biological process characterized by irreversible cell cycle arrest. The accumulation of senescent cells creates a pro-inflammatory environment that can negatively affect tissue functions and may promote the development of aging-related diseases. Typical biomarkers related to senescence include senescence-associated β-galactosidase activity, histone H2A.X phosphorylation at serine139 (γH2A.X), and senescence-associated heterochromatin foci (SAHF) with heterochromatin protein 1γ (HP-1γ protein) Moreover, immune cells undergoing senescence, which is known as immunosenescence, can affect innate and adaptative immune functions and may elicit detrimental effects over the host's susceptibility to infectious diseases. Although associations between senescence and pathogens have been reported, clear links between both, and the related molecular mechanisms involved remain to be determined. Furthermore, it remains to be determined whether infections effectively induce senescence, the impact of senescence and immunosenescence over infections, or if both events coincidently share common molecular markers, such as γH2A.X and p53. Here, we review and discuss the most recent reports that describe cellular hallmarks and biomarkers related to senescence in immune and non-immune cells in the context of infections, seeking to better understand their relationships. Related literature was searched in Pubmed and Google Scholar databases with search terms related to the sections and subsections of this review.
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Affiliation(s)
- Antonia Reyes
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Gerardo Ortiz
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Luisa F. Duarte
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Christian Fernández
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile
| | - Rosario Hernández-Armengol
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Pablo A. Palacios
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Yolanda Prado
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Catalina A. Andrade
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Linmar Rodriguez-Guilarte
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Leandro J. Carreño
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Claudia A. Riedel
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Mónica Cáceres
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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Meng W, Chen M, Song Y, Zhang H, Xie R, Zhang F. Prevalence and Risk Factors of Low Bone Mineral Density in HIV/AIDS Patients: A Chinese Cross-Sectional Study. J Acquir Immune Defic Syndr 2022; 90:360-368. [PMID: 35315797 DOI: 10.1097/qai.0000000000002958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 03/14/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Our study aimed to investigate the prevalence and risk factors of low bone mineral density (BMD) among HIV/AIDS patients in China. METHODS We performed a cross-sectional analysis of HIV-infected patients from October 2017 to August 2020. Demographic information, clinical data, and serum parameters were obtained. Univariable and multiple logistic regression analyses were performed. RESULTS A total of 1143 patients were included. In the ART-naive group, low BMD was diagnosed in 19.2% (117/608), including osteoporosis in 1.0% (6/608) and osteopenia in 18.3% (111/608). In the ART group, low BMD was diagnosed in 32.2% (231/717), including osteoporosis in 2.4% (17/717) and osteopenia in 29.8% (214/717). Using multivariate analysis, we identified age older than 50 years, body mass index < 18.5 kg/m2, and treatment based on tenofovir disoproxil fumarate as independent risk factors for low BMD. Low high-density lipoprotein cholesterol was a protective factor for low BMD. Among low BMD participants, the most common number of low BMD sites for a patient to have was 4 (33.6%, 117/348). CONCLUSION We confirmed a high prevalence of low BMD and osteoporosis in HIV/AIDS patients, and we identified age older than 50 years, low body mass index, and a treatment based on tenofovir disoproxil fumarate as risk factors for low BMD. Low high-density lipoprotein cholesterol had a protective effect against low BMD. Among low BMD patients, patients most commonly had 4 sites with low BMD, which has been associated with fracture risk. In addition, bone changes to L1 can present before low BMD diagnosis and may be a potentially useful indicator that low BMD is developing.
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Affiliation(s)
- Weiqing Meng
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Meiling Chen
- The Medical Record Statistics Department, Beijing Ditan Hospital, Capital Medical University, Beijing, China; and
| | - Yangzi Song
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Huan Zhang
- Department of Radiology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ruming Xie
- Department of Radiology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Fujie Zhang
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
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How Do Drugs Affect the Skeleton? Implications for Forensic Anthropology. BIOLOGY 2022; 11:biology11040524. [PMID: 35453723 PMCID: PMC9030599 DOI: 10.3390/biology11040524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/21/2022] [Accepted: 03/18/2022] [Indexed: 01/10/2023]
Abstract
Simple Summary Forensic anthropologists analyze human remains to assist in the identification of the deceased, predominantly by assessing age-at-death, sex, stature, ancestry and any unique identifying features. Whilst methods have been established to create this biological profile of the skeleton, these may be influenced by a number of factors. This paper, for the first time, provides an overview from a reading of the clinical and pharmacological literature to explore whether the intake of drugs can affect the skeleton and whether these may have implications for forensic anthropology casework. In effect, drugs such as tobacco, heroin, and prescription medications can alter bone mineral density, can increase the risk of fractures, destroy bone and changes to the dentition. By considering how drugs can affect the skeleton, forensic anthropologists can be aware of this when attempting to identify the deceased. Abstract Forensic anthropologists rely on a number of parameters when analyzing human skeletal remains to assist in the identification of the deceased, predominantly age-at-death, sex, stature, ancestry or population affinity, and any unique identifying features. During the examination of human remains, it is important to be aware that the skeletal features considered when applying anthropological methods may be influenced and modified by a number of factors, and particular to this article, prescription drugs (including medical and non-medical use) and other commonly used drugs. In view of this, this paper aims to review the medical, clinical and pharmacological literature to enable an assessment of those drug groups that as side effects have the potential to have an adverse effect on the skeleton, and explore whether or not they can influence the estimation of age-at-death, sex and other indicators of the biological profile. Moreover, it may be that the observation of certain alterations or inconsistencies in the skeleton may relate to the use of drugs or medication, and this in turn may help narrow down the list of missing persons to which a set of human remains could belong. The information gathered from the clinical and medical literature has been extracted with a forensic anthropological perspective and provides an awareness on how several drugs, such as opioids, cocaine, corticosteroids, non-steroidal anti-inflammatory drugs, alcohol, tobacco and others have notable effects on bone. Through different mechanisms, drugs can alter bone mineral density, causing osteopenia, osteoporosis, increase the risk of fractures, osteonecrosis, and oral changes. Not much has been written on the influence of drugs on the skeleton from the forensic anthropological practitioner perspective; and this review, in spite of its limitations and the requirement of further research, aims to investigate the current knowledge of the possible effects of both prescription and recreational drugs on bones, contributing to providing a better awareness in forensic anthropological practice and assisting in the identification process of the deceased.
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Ozcan SN, Sevgi DY, Oncul A, Gunduz A, Pehlivan O, Terlemez R, Kuran B, Dokmetas L. The prevalence and associated factors of reduced bone mineral density (BMD) among men with suppressed viral load taking antiretroviral therapy. Curr HIV Res 2021; 20:74-81. [PMID: 34856908 DOI: 10.2174/1570162x19666211202100308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/02/2021] [Accepted: 10/21/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Reduced bone mineral density (BMD) is a frequent comorbidity observed in people living with HIV (PLHIV). OBJECTIVE The aim of the study is to determine the prevalence and associated factors of reduced bone mineral density (BMD) among men with suppressed viral load taking antiretroviral therapy. METHOD The study was conducted as a cross-sectional study design between January to April 2019. 211 patients were included in the study. Z-score at either body site between -1.0 and -2.0 or -2 or less were defined as osteopenia or osteoporosis, respectively. Multivariate logistic regression analysis was used to evaluate the factors affecting the development of reduced BMD. RESULTS The mean age of the patients involved in the study was 34.8 ± 7.6. Osteoporosis was detected in 21.4% and osteopenia in 44.5% of the patients. There was a significant relationship between HIV diagnosis time, ART usage duration, tenofovir disoproxil fumarate (TDF) use, TDF use in the past, total TDF usage time and decreased BMD. Multivariate logistic regression analysis showed that the likelihood of reduced bone marrow density was 67% lower among those with regular milk or dairy product intake compared to those without (OR=0.330; 95% CI = 0.12-0.92, p=0.033 ) Conclusion: There is a high prevalence of reduced BMD among PLHIV aged under 50 which is mainly confounded by HIV diagnosis time, ART usage duration and TDF usage. Although virological control has been achieved, these patients should be followed up, considering that they may have decreased BMD.
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Affiliation(s)
- Safiye Nur Ozcan
- University of Health Sciences Sisli Hamidiye Etfal Training and Research Hospital, İnfectious Diseases and Clinical Microbiology, Istanbul. Turkey
| | - Dilek Yıldız Sevgi
- University of Health Sciences Sisli Hamidiye Etfal Training and Research Hospital, İnfectious Diseases and Clinical Microbiology, Istanbul. Turkey
| | - Ahsen Oncul
- University of Health Sciences Sisli Hamidiye Etfal Training and Research Hospital, İnfectious Diseases and Clinical Microbiology, Istanbul. Turkey
| | - Alper Gunduz
- University of Health Sciences Sisli Hamidiye Etfal Training and Research Hospital, İnfectious Diseases and Clinical Microbiology, Istanbul. Turkey
| | - Ozgun Pehlivan
- University of Abant Izzet Baysal , Department of Public Health, Bolu. Turkey
| | - Rana Terlemez
- Department of Physical Medicine and Rehabilitation, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul. Turkey
| | - Banu Kuran
- Department of Physical Medicine and Rehabilitation, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul. Turkey
| | - Llyas Dokmetas
- University of Health Sciences Sisli Hamidiye Etfal Training and Research Hospital, İnfectious Diseases and Clinical Microbiology, Istanbul. Turkey
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Ma R, He J, Xu B, Zhao R, Zhang Q. Negative correlation between bone mineral density and subclinical fractures in patients with human immunodeficiency virus. J Int Med Res 2021; 49:300060520980639. [PMID: 33528283 PMCID: PMC7871090 DOI: 10.1177/0300060520980639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background Although low bone mineral density (BMD) is associated with an increased risk of fracture, few studies have assessed fracture rates in patients with human immunodeficiency virus (HIV). Methods The occurrence of subclinical fractures in patients with HIV was assessed. Pearson’s chi-square test was used to analyze the relationship between subclinical fractures and related factors. Results Fifty patients with HIV were included, among whom 11 were diagnosed with subclinical fractures. These 11 patients had a mean body mass index of 24.127 ± 3.482 kg/m2, smoked a mean of 142.091 ± 3.482 cigarettes/month, drank a mean of 61.545 ± 13.026 mL/day of alcohol, had a mean CD4+ T cell count of 247.727 ± 181.679 cells/mm3, had a mean duration of acquired immunodeficiency syndrome (AIDS) of 4.27 ± 0.786 years, and had a mean BMD of the third lumbar spine of 0.810 ± 0.063 g/cm3. The AIDS duration and BMD of the third lumbar spine were significantly associated with subclinical fractures. The BMD of the third lumbar spine was negatively correlated with subclinical fractures. Conclusion A significant negative correlation was found between the BMD of the third lumbar spine and subclinical fractures.
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Affiliation(s)
| | | | | | | | - Qiang Zhang
- Qiang Zhang, Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun Dong Jie, Chaoyang District, Beijing 100015, China.
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Seoane R, Vidal S, Bouzaher YH, El Motiam A, Rivas C. The Interaction of Viruses with the Cellular Senescence Response. BIOLOGY 2020; 9:E455. [PMID: 33317104 PMCID: PMC7764305 DOI: 10.3390/biology9120455] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/30/2020] [Accepted: 12/07/2020] [Indexed: 01/10/2023]
Abstract
Cellular senescence is viewed as a mechanism to prevent malignant transformation, but when it is chronic, as occurs in age-related diseases, it may have adverse effects on cancer. Therefore, targeting senescent cells is a novel therapeutic strategy against senescence-associated diseases. In addition to its role in cancer protection, cellular senescence is also considered a mechanism to control virus replication. Both interferon treatment and some viral infections can trigger cellular senescence as a way to restrict virus replication. However, activation of the cellular senescence program is linked to the alteration of different pathways, which can be exploited by some viruses to improve their replication. It is, therefore, important to understand the potential impact of senolytic agents on viral propagation. Here we focus on the relationship between virus and cellular senescence and the reported effects of senolytic compounds on virus replication.
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Affiliation(s)
- Rocío Seoane
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidad de Santiago de Compostela, 15706 Santiago de Compostela, Spain; (R.S.); (S.V.); (Y.H.B.); (A.E.M.)
| | - Santiago Vidal
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidad de Santiago de Compostela, 15706 Santiago de Compostela, Spain; (R.S.); (S.V.); (Y.H.B.); (A.E.M.)
| | - Yanis Hichem Bouzaher
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidad de Santiago de Compostela, 15706 Santiago de Compostela, Spain; (R.S.); (S.V.); (Y.H.B.); (A.E.M.)
| | - Ahmed El Motiam
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidad de Santiago de Compostela, 15706 Santiago de Compostela, Spain; (R.S.); (S.V.); (Y.H.B.); (A.E.M.)
| | - Carmen Rivas
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidad de Santiago de Compostela, 15706 Santiago de Compostela, Spain; (R.S.); (S.V.); (Y.H.B.); (A.E.M.)
- Centro Nacional de Biotecnología (CNB), CSIC, 28049 Madrid, Spain
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Abstract
PLHIV have an increased risk of osteoporosis and fractures when compared with people of the same age and sex. In this review, we address the epidemiology and the pathophysiology of bone disease and fractures in PLHIV. The assessment of fracture risk and fracture prevention in these subjects is also discussed. The spectrum of HIV-associated disease has changed dramatically since the introduction of potent antiretroviral drugs. Today, the survival of people living with HIV (PLHIV) is close to that of the general population. However, the longer life-span in PLHIV is accompanied by an increased prevalence of chronic diseases. Detrimental effects on bone health are well recognised, with an increased risk of osteoporosis and fractures, including vertebral fractures, compared to the general population. The causes of bone disease in PLHIV are not fully understood, but include HIV-specific risk factors such as use of antiretrovirals and the presence of chronic inflammation, as well as traditional risk factors for fracture. Current guidelines recommend the use of FRAX to assess fracture probability in PLHIV age ≥ 40 years and measurement of bone mineral density in those at increased fracture risk. Vitamin D deficiency, if present, should be treated. Bisphosphonates have been shown to increase bone density in PLHIV although fracture outcomes are not available.
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Affiliation(s)
- M O Premaor
- Department of Clinical Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - J E Compston
- Department of Medicine, Cambridge Biomedical Campus, Cambridge, UK
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Streinu-Cercel A, Săndulescu O, Poiană C, Dorobanţu M, Mircescu G, Lăzureanu VE, Dumitru IM, Chirilă O, Streinu-Cercel A. Consensus statement on the assessment of comorbidities in people living with HIV in Romania. Germs 2019; 9:198-210. [PMID: 32042727 DOI: 10.18683/germs.2019.1178] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/01/2019] [Indexed: 02/04/2023]
Abstract
Introduction The life expectancy of HIV-infected patients has been increased by highly effective therapies. People living with HIV (PLWH) in Romania are exposed to age-related comorbidities occurring earlier than in uninfected individuals. Multidisciplinary care is required to maintain the general health and quality of life in these patients. Currently, the communication among different specialties needs to be enhanced and formalized. Methods A panel consisting of 8 Romanian experts in infectious diseases, cardio-metabolic, bone, and kidney diseases and psychology met in May 2019 in Bucharest Romania to discuss the need to evaluate and monitor the most prevalent comorbidities in PLWH. The meeting resulted in practical guidance on the management of several non-infectious associated diseases. The algorithms were endorsed by the Society for Infectious Diseases and HIV/AIDS, Romania. Results The consensus statement offers practical guidance on how to assess and monitor associated diseases in adult PLWH. The recommendations are grouped for each cluster of comorbidities and are based on international guidelines and clinical experience, including landmarks for referral of PLWH to cardiology, endocrinology, nephrology specialist or clinical psychologist for additional investigations and adequate treatment. Specific indications for diagnosis or treatment were beyond the scope of this consensus. Conclusions Screening for associated diseases and adequate management are required to maintain the overall health status of PLWH. When implemented in clinical practice, the recommended algorithms should be used in addition to diagnosis and treatment guidelines and protocols. The infectious diseases specialist plays a key role in coordinating the overall treatment strategy and working within the multidisciplinary team.
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Affiliation(s)
- Anca Streinu-Cercel
- MD, PhD, Associate Professor, Department of Infectious Diseases I, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, National Institute for Infectious Diseases "Prof. Dr. Matei Balş", 1 Dr. Calistrat Grozovici Street, Bucharest 021105, Romania
| | - Oana Săndulescu
- MD, PhD, Associate Professor, Department of Infectious Diseases I, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, National Institute for Infectious Diseases "Prof. Dr. Matei Balş", 1 Dr. Calistrat Grozovici Street, Bucharest 021105, Romania
| | - Cătălina Poiană
- MD, PhD, Professor, Department of Endocrinology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, National Institute of Endocrinology "C. I. Parhon", 34-38 Aviatorilor Boulevard, Bucharest 011863, Romania
| | - Maria Dorobanţu
- MD, PhD, Professor, Department of Cardiology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Clinical Emergency Hospital Floreasca, 8 Floreasca Road, Bucharest 014461, Romania
| | - Gabriel Mircescu
- MD, PhD, Professor, Department of Nephrology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Clinical Nephrology Hospital "Carol Davila", 4 Griviţei Road, Bucharest 010731, Romania
| | - Voichiţa Elena Lăzureanu
- MD, PhD, Associate Professor, Dr. Victor Babeş University of Medicine and Pharmacy, Timişoara, "Victor Babeş" Clinical Hospital of Infectious Diseases and Pneumology, 2 Eftimie Murgu Plaza, Timişoara, Romania
| | - Irina-Magdalena Dumitru
- MD, PhD, Associate Professor, Clinical Hospital of Infectious Diseases Constanţa; Department of Infectious Diseases, Faculty of Medicine, Ovidius University of Constanţa, 124 Mamaia Boulevard, Constanţa, Romania
| | - Odette Chirilă
- Principal Clinical Psychologist, National Institute for Infectious Diseases "Prof. Dr. Matei Balş", 1 Dr. Calistrat Grozovici Street, Bucharest 021105, Romania
| | - Adrian Streinu-Cercel
- MD, PhD, Professor, Department of Infectious Diseases I, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, National Institute for Infectious Diseases "Prof. Dr. Matei Balş", 1 Dr. Calistrat Grozovici Street, Bucharest 021105, Romania
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Reduced bone mineral density among HIV-infected, virologically controlled young men: prevalence and associated factors. AIDS 2018; 32:2689-2696. [PMID: 30234605 DOI: 10.1097/qad.0000000000002001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Reduced bone mineral density (BMD) is a frequent comorbidity observed in people living with HIV (PLHIV). We aimed to determine the prevalence of reduced BMD and its associated factors among young PLHIV men, virologically controlled by combination antiretroviral therapy (cART). DESIGN A bicentric cross-sectional study. METHODS We selected men, aged less than 50 years, treated by cART, with HIV-RNA less than 50 copies/ml. BMDs of lumbar spine and hip were measured by dual-energy X-ray absorptiometry (DXA). A Z-score at either site between -1.0 and -2.0 or -2 or less defined osteopenia or osteoporosis, respectively. Linear and polytomous logistic regression analyses were performed. RESULTS Among 230 men with a median age of 43 [interquartile range (IQR), 36-47] years, BMI of 23.5 (21.3-25.3) kg/m(2) and median duration of cART of 4.2 (1.7-8.5) years, reduced BMD was diagnosed in 48.3%. In multivariate analyses, BMI decrease was associated with a risk of osteopenia [odds ratio (OR) = 1.17, P < 0.01] and osteoporosis (OR = 1.24, P < 0.01). Oestradiol levels decrease were associated with osteoporosis (OR = 1.32, P < 0.05) and lower lean mass with osteopenia (OR = 2.98, P < 0.01). There was a protective effect of the duration of cART (OR = 0.87, P < 0.01), which was even greater when the duration was more than 3 years (OR = 0.44, P = 0.02). CONCLUSION There is a high prevalence of reduced BMD among young men, despite persistent virological control of HIV-infection. This observation raises the question of extending current recommendations for BMD assessment to PLHIV aged < 50 years for whom BMD has stabilized after cART initiation, i.e. treated for more than three years.
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11
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Premaor MO, Compston JE. The Hidden Burden of Fractures in People Living With HIV. JBMR Plus 2018; 2:247-256. [PMID: 30283906 PMCID: PMC6139727 DOI: 10.1002/jbm4.10055] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/02/2018] [Accepted: 04/11/2018] [Indexed: 02/06/2023] Open
Abstract
The survival of people living with human immunodeficiency virus (HIV) has increased markedly since the advent of antiretroviral therapy (ART). However, other morbidities have emerged, including osteoporosis. The estimated incidence of fractures at any site in people living with HIV ranges from 0.1 per 1000 person‐years to 8.4 per 1000 person‐years: at least twice that of people without HIV. This increased risk seems to be related to HIV itself and its treatment. Risk factors for bone disease in HIV‐positive (HIV+) subjects include both classical risk factors for osteoporosis and fracture and factors linked to HIV itself, such as inflammation, reconstitution syndrome, low CD4, ART, and co‐infection with hepatitis B and C viruses. The risk of fractures in these individuals can be at least partially assessed by measurement of BMD and the Fracture Risk Assessment Tool (FRAX™). Only alendronate and zoledronic acid have been studied in HIV+ individuals; both show beneficial effects on BMD, although data on fracture reduction are not available. © 2018 The Authors. JBMR Plus Published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Melissa O Premaor
- Department of Clinical Medicine Health Sciences Center Federal University of Santa Maria Santa Maria Brazil
| | - Juliet E Compston
- Department of Medicine Cambridge Biomedical Campus Cambridge United Kingdom
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12
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Cervero M, Torres R, Agud JL, Alcázar V, Jusdado JJ, García-Lacalle C, Moreno S. Prevalence of and risk factors for low bone mineral density in Spanish treated HIV-infected patients. PLoS One 2018; 13:e0196201. [PMID: 29709013 PMCID: PMC5927434 DOI: 10.1371/journal.pone.0196201] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 04/09/2018] [Indexed: 11/25/2022] Open
Abstract
Objectives Several studies have involved antiretroviral therapy in the pathogenesis of low bone mineral density (BMD), while others have not confirmed this association. In this study we analyze the impact of HIV status, traditional risk factors and antiretroviral therapy in BMD in an HIV-infected population living in Madrid. Material and methods We performed a cross-sectional analysis of 107 individuals infected with HIV and exposed to antiretroviral treatment to estimate the prevalence of decreased BMD. Bone mineral density of lumbar spine and femoral neck was measured by dual-energy X-ray absorptiometry. In a multivariate analysis variables related with HIV status, antiretroviral drugs and traditional risk factors were included. Results Low BMD was diagnosed in 63 participants (58.9%), including osteoporosis in 11 (10%). At least one cause of osteoporosis was identified in 43 patients (40%), with a deficiency of vitamin D in 86 (89%) and secondary hyperparathyroidism in 30 (28%). In multivariate analysis, increasing age, a treatment based on boosted PI and tenofovir DF, and previous exposure to tenofovir were identified as independent risk factors for a decreased BMD in both lumbar spine and femoral neck. Conclusions We have confirmed a high prevalence of reduced BMD, which is favoured by ritonavir-boosted PI and TDF. Bone safety should continue to be evaluated in clinical trials and cohort studies in order to demonstrate that the new drugs offer additional advantages regarding the impact on BMD.
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Affiliation(s)
- Miguel Cervero
- Department of Internal Medicine, Severo Ochoa University Hospital, Leganés, Madrid, Spain
- * E-mail:
| | - Rafael Torres
- Department of Internal Medicine, Severo Ochoa University Hospital, Leganés, Madrid, Spain
| | - Jose Luís Agud
- Department of Internal Medicine, Severo Ochoa University Hospital, Leganés, Madrid, Spain
| | - Victoria Alcázar
- Department of Endocrinology, Severo Ochoa University Hospital, Leganés, Madrid, Spain
| | - Juan José Jusdado
- Department of Internal Medicine, Severo Ochoa University Hospital, Leganés, Madrid, Spain
| | | | - Santiago Moreno
- Department of Infectious Diseases, Ramón y Cajal Hospital, University of Alcalá de Henares, IRYCIS, Madrid, Spain
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13
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Biehler-Gomez L, Cabrini A, De Angelis D, Cattaneo C. How do skeletons with HIV present? A study on the identified CAL Milano Cemetery Skeletal Collection. Leg Med (Tokyo) 2018; 33:11-16. [PMID: 29704727 DOI: 10.1016/j.legalmed.2018.04.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 04/22/2018] [Indexed: 11/25/2022]
Abstract
With the Human Immunodeficiency Virus (HIV) infection and Acquired Immune Deficiency Syndrome (AIDS) pandemic, the study of HIV/AIDS on bones has become of pivotal interest for research in bone pathologies, forensic applications (especially in the matter of identification when confronted to antemortem data) and medical purposes. In this paper, we document and discuss the macroscopic lesions found on the skeletons of nine individuals with known HIV, including four with known AIDS, coming from the identified CAL Milano Cemetery Skeletal Collection. As a result, several types of lesions were observed on bones: periosteal new bone formation, dental lesions, thickening of the frontal diploë, destructive localized porosity and evidence of trauma. None of the lesions reported can be directly linked to HIV because the virus does not directly affect bones in a macroscopic way. However, HIV/AIDS-induced infections and inflammations and HIV-related risk factors may leave bone markers. The differential diagnosis of each of the lesions noted in this research and its potential link to HIV or AIDS was discussed. Although it is not possible to diagnose HIV on bare bones, this was not the focus of this study. To our knowledge, no anthropological study has ever been performed on known HIV individuals. With this paper, we present for the first time skeletons with known HIV.
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Affiliation(s)
- Lucie Biehler-Gomez
- LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Sezione Di Medicina Legale, Dipartimento Di Scienze Biomediche per La Salute, Università Degli Studi Di Milano, Milan, Italy.
| | - Antonio Cabrini
- LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Sezione Di Medicina Legale, Dipartimento Di Scienze Biomediche per La Salute, Università Degli Studi Di Milano, Milan, Italy
| | - Danilo De Angelis
- LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Sezione Di Medicina Legale, Dipartimento Di Scienze Biomediche per La Salute, Università Degli Studi Di Milano, Milan, Italy
| | - Cristina Cattaneo
- LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Sezione Di Medicina Legale, Dipartimento Di Scienze Biomediche per La Salute, Università Degli Studi Di Milano, Milan, Italy
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14
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Atteritano M, Mirarchi L, Venanzi-Rullo E, Santoro D, Iaria C, Catalano A, Lasco A, Arcoraci V, Lo Gullo A, Bitto A, Squadrito F, Cascio A. Vitamin D Status and the Relationship with Bone Fragility Fractures in HIV-Infected Patients: A Case Control Study. Int J Mol Sci 2018; 19:ijms19010119. [PMID: 29301284 PMCID: PMC5796068 DOI: 10.3390/ijms19010119] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 12/20/2017] [Accepted: 12/23/2017] [Indexed: 11/16/2022] Open
Abstract
HIV-infected patients show high risk of fracture. The aims of our study were to determine the prevalence of vertebral fractures (VFs) and their associations with vitamin D in HIV patients. 100 patients with HIV infection and 100 healthy age- and sex-matched controls were studied. Bone mineral density was measured by quantitative ultrasound at the non-dominant heel. Serum osteocalcin and C-terminal telopeptide of collagen type 1 served as bone turnover markers. Bone ultrasound measurements were significantly lower in patients compared with controls (Stiffness Index (SI): 80.58 ± 19.95% vs. 93.80 ± 7.10%, respectively, p < 0.001). VFs were found in 16 patients and in 2 controls. HIV patients with vertebral fractures showed lower stiffness index (SI) (70.75 ± 10.63 vs. 83.36 ± 16.19, respectively, p = 0.045) and lower vitamin D levels (16.20 ± 5.62 vs. 28.14 ± 11.94, respectively, p < 0.02). The majority of VFs (87.5%) were observed in HIV-infected patients with vitamin D insufficiency, and regression analysis showed that vitamin D insufficiency was significantly associated with vertebral fractures (OR 9.15; 95% CI 0.18–0.52, p < 0.04). VFs and are a frequent occurrence in HIV-infected patients and may be associated with vitamin D insufficiency.
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Affiliation(s)
- Marco Atteritano
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Luigi Mirarchi
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Emmanuele Venanzi-Rullo
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Domenico Santoro
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Chiara Iaria
- Infectious Diseases Unit-ARNAS Civico, Di Cristina, Benfratelli, 90127 Palermo, Italy.
| | - Antonino Catalano
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Antonino Lasco
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Vincenzo Arcoraci
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Alberto Lo Gullo
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
| | - Antonio Cascio
- Department of Health Promotion Sciences and Mother and Child Care "G. D'Alessandro", University of Palermo, 90127 Palermo, Italy.
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15
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Weitzmann MN, Vikulina T, Roser-Page S, Yamaguchi M, Ofotokun I. Homeostatic Expansion of CD4+ T Cells Promotes Cortical and Trabecular Bone Loss, Whereas CD8+ T Cells Induce Trabecular Bone Loss Only. J Infect Dis 2017; 216:1070-1079. [PMID: 28968828 DOI: 10.1093/infdis/jix444] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 08/23/2017] [Indexed: 12/20/2022] Open
Abstract
Background Bone loss occurs in human immunodeficiency virus (HIV) infection but paradoxically is intensified by HIV-associated antiretroviral therapy (ART), resulting in an increased fracture incidence that is largely independent of ART regimen. Inflammation in the bone microenvironment associated with T-cell repopulation following ART initiation may explain ART-induced bone loss. Indeed, we have reported that reconstitution of CD3+ T cells in immunodeficient mice mimics ART-induced bone loss observed in humans. In this study, we quantified the relative effects of CD4+ and CD8+ T-cell subsets on bone. Methods T-cell subsets in T-cell receptor β knockout mice were reconstituted by adoptive transfer with CD4+ or CD8+ T-cells subsets were reconstituted in T-cell receptor β knockout mice by adoptive transfer, and bone turnover, bone mineral density, and indices of bone structure and turnover were quantified. Results Repopulating CD4+ but not CD8+ T cells significantly diminished bone mineral density. However, micro-computed tomography revealed robust deterioration of trabecular bone volume by both subsets, while CD4+ T cells additionally induced cortical bone loss. Conclusions CD4+ T-cell reconstitution, a key function of ART, causes significant cortical and trabecular bone loss. CD8+ T cells may further contribute to trabecular bone loss in some patients with advanced AIDS, in whom CD8+ T cells may also be depleted. Our data suggest that bone densitometry used for assessment of the condition of bone in humans may significantly underestimate trabecular bone damage sustained by ART.
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Affiliation(s)
- M Neale Weitzmann
- Atlanta Department of Veterans Affairs Medical Center, Decatur.,Division of Endocrinology and Metabolism and Lipids
| | - Tatyana Vikulina
- Atlanta Department of Veterans Affairs Medical Center, Decatur.,Division of Endocrinology and Metabolism and Lipids
| | | | | | - Ighovwerha Ofotokun
- The Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine.,Grady Healthcare System, Atlanta, Georgia
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16
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Associations of Low Vitamin D and Elevated Parathyroid Hormone Concentrations With Bone Mineral Density in Perinatally HIV-Infected Children. J Acquir Immune Defic Syndr 2017; 76:33-42. [PMID: 28797019 DOI: 10.1097/qai.0000000000001467] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Perinatally HIV-infected (PHIV) children have, on average, lower bone mineral density (BMD) than perinatally HIV-exposed uninfected (PHEU) and healthy children. Low 25-hydroxy vitamin D [25(OH)D] and elevated parathyroid hormone (PTH) concentrations may lead to suboptimal bone accrual. METHODS PHIV and PHEU children in the Pediatric HIV/AIDS Cohort Study had total body (TB) and lumbar spine (LS) BMD and bone mineral content (BMC) measured by dual-energy x-ray absorptiometry; BMD z-scores (BMDz) were calculated for age and sex. Low 25(OH)D was defined as ≤20 ng/mL and high PTH as >65 pg/mL. We fit linear regression models to estimate the average adjusted differences in BMD/BMC by 25(OH)D and PTH status and log binomial models to determine adjusted prevalence ratios of low 25(OH)D and high PTH in PHIV relative to PHEU children. RESULTS PHIV children (n = 412) were older (13.0 vs. 10.8 years) and more often black (76% vs. 64%) than PHEU (n = 207). Among PHIV, children with low 25(OH)D had lower TB-BMDz [SD, -0.38; 95% confidence interval (CI), -0.60 to -0.16] and TB-BMC (SD, -59.1 g; 95% CI, -108.3 to -9.8); high PTH accompanied by low 25(OH)D was associated with lower TB-BMDz. Among PHEU, children with low 25(OH)D had lower TB-BMDz (SD, -0.34; 95% CI, -0.64 to -0.03). Prevalence of low 25(OH)D was similar by HIV status (adjusted prevalence ratio, 1.00; 95% CI, 0.81 to 1.24). High PTH was 3.17 (95% CI, 1.25 to 8.06) times more likely in PHIV children. CONCLUSIONS PHIV and PHEU children with low 25(OH)D may have lower BMD. Vitamin D supplementation trials during critical periods of bone accrual are needed.
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17
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Ahmad AN, Ahmad SN, Ahmad N. HIV Infection and Bone Abnormalities. Open Orthop J 2017; 11:777-784. [PMID: 28979590 PMCID: PMC5620402 DOI: 10.2174/1874325001711010777] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 07/12/2017] [Accepted: 07/20/2017] [Indexed: 12/31/2022] Open
Abstract
More than 36 million people are living with human immunodeficiency virus (HIV) infection worldwide and 50% of them have access to antiretroviral therapy (ART). While recent advances in HIV therapy have reduced the viral load, restored CD4 T cell counts and decreased opportunistic infections, several bone-related abnormalities such as low bone mineral density (BMD), osteoporosis, osteopenia, osteomalacia and fractures have emerged in HIV-infected individuals. Of all classes of antiretroviral agents, HIV protease inhibitors used in ART combination showed a higher frequency of osteopenia, osteoporosis and low BMD in HIV-infected patients. Although the mechanisms of HIV and/or ART associated bone abnormalities are not known, it is believed that the damage is caused by a complex interaction of T lymphocytes with osteoclasts and osteoblasts, likely influenced by both HIV and ART. In addition, infection of osteoclasts and bone marrow stromal cells by HIV, including HIV Gp120 induced apoptosis of osteoblasts and release of proinflammatory cytokines have been implicated in impairment of bone development and maturation. Several of the newer antiretroviral agents currently used in ART combination, including the widely used tenofovir in different formulations show relative adverse effects on BMD. In this context, switching the HIV-regimen from tenofovir disoproxil fumarate (TDF) to tenofovir alafenamide (TAF) showed improvement in BMD of HIV-infected patients. In addition, inclusion of integrase inhibitor in ART combination is associated with improved BMD in patients. Furthermore, supplementation of vitamin D and calcium with the initiation of ART may mitigate bone loss. Therefore, levels of vitamin D and calcium should be part of the evaluation of HIV-infected patients.
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Affiliation(s)
- Aamir N Ahmad
- Department of Immunobiology, College of Medicine, University of Arizona, Tucson, Arizona, AZ, USA
| | - Shahid N Ahmad
- Department of Internal Medicine, University of South Dakota Sanford School of Medicine, Rapid City, South Dakota, USA
| | - Nafees Ahmad
- Department of Immunobiology, College of Medicine, University of Arizona, Tucson, Arizona, AZ, USA
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18
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Nittayananta W, Kanjanaprapas A, Arirachakaran P, Pangsomboon K, Sriplung H. Alveolar bone in human immunodeficiency virus infection: is it changed by long-term antiretroviral therapy? Int Dent J 2016; 67:123-129. [PMID: 27864831 DOI: 10.1111/idj.12265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Previous studies have reported that human immunodeficiency virus (HIV) infection and antiretroviral therapy (ART) can lead to osteoporosis in HIV-infected individuals. However, their effects on alveolar bone are not well established. The objective of this study was to measure the alveolar bone mineral density (BMD) of HIV-infected patients, with and without antiretroviral therapy (ART), in comparison with that of HIV-free individuals, and to determine factors associated with the BMD of alveolar bone. METHODS A cross-sectional study was performed in non-HIV-infected individuals and HIV-infected individuals, with and without ART. Medical status and clinical data were recorded. Periapical radiographs of maxillary and mandibular right premolars were analysed for changes of alveolar BMD based on HIV/ART status. Other factors associated with the changes of alveolar BMD were explored using a parametric multivariate analysis of covariance (MANCOVA). RESULTS One-hundred and one HIV-infected individuals receiving ART (age range: 23-57 years; median age 39 years), 58 receiving no ART (age range: 20-59 years; median age 34 years) and 50 HIV-negative individuals (age range: 19-59 years; median age 36 years) were enrolled. Neither HIV status nor use of ART was significantly associated with the changes of alveolar BMD. CONCLUSION Although osteoporosis has been reported in HIV-infected individuals treated with ART, alveolar BMD does not appear to be changed as a result of the infection, or use of ART.
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Affiliation(s)
- Wipawee Nittayananta
- Excellent Research Laboratory, Phytomedicine and Pharmaceutical Biotechnology Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, Thailand.,Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Aree Kanjanaprapas
- Department of Stomatology, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Pratanporn Arirachakaran
- Department of Oral Medicine, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Infectious Diseases Clinic, Dental Hospital, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Dental Center, Bangkok Hospital, Bangkok, Thailand
| | - Kanokporn Pangsomboon
- Department of Stomatology, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Hutcha Sriplung
- Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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19
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Antiretroviral therapy induces a rapid increase in bone resorption that is positively associated with the magnitude of immune reconstitution in HIV infection. AIDS 2016; 30:405-14. [PMID: 26760232 DOI: 10.1097/qad.0000000000000918] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVE Antiretroviral therapy (ART) paradoxically intensifies bone loss in the setting of HIV infection. Although the extent of bone loss varies, it occurs with virtually all ART types, suggesting a common pathway that may be aligned with HIV disease reversal. Using an animal model of immunodeficiency we recently demonstrated that immune activation associated with CD4 T-cell reconstitution induces increased production of the osteoclastogenic cytokines RANKL and TNFα by immune cells, driving enhanced bone resorption and loss in bone mineral density. DESIGN To confirm these findings in humans, we investigated the early kinetics of CD4 T-cell recovery in relation to biomarkers of bone turnover and osteoclastogenic regulators in a prospective 24-week cohort study. METHODS Clinical data and blood sampling for HIV-RNA PCR, CD4 T-cell counts, bone turnover biomarkers, and osteoclastogenic regulators were obtained from ART-naïve HIV-infected study participants initiating standard doses of lopinavir/ritonavir plus tenofovir disoproxil fumarate/emtricitabine at baseline and at weeks 2, 8, 12, and 24 post ART. RESULTS C-terminal telopeptide of collagen (CTx) a sensitive biomarker of bone resorption rose by 200% above baseline at week 12, remaining elevated through week 24 (α<0.01), and was associated with significant increases in plasma levels of osteoclastogenic regulators [receptor activator of NF-kB ligand (RANKL), tumor necrosis factor alpha, (TNFα)]. Importantly, the magnitude of CD4 T-cell recovery correlated significantly with CTx (rs = 0.387, α=0.01). CONCLUSION Our data suggest that ART-induced bone loss occurs early, is aligned with early events of immune reconstitution, and these immune changes provide a unifying mechanism to explain in part the skeletal decline common to all ART.
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20
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Ofotokun I, Titanji K, Vikulina T, Roser-Page S, Yamaguchi M, Zayzafoon M, Williams IR, Weitzmann MN. Role of T-cell reconstitution in HIV-1 antiretroviral therapy-induced bone loss. Nat Commun 2015; 6:8282. [PMID: 26392000 PMCID: PMC4580984 DOI: 10.1038/ncomms9282] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 08/04/2015] [Indexed: 12/17/2022] Open
Abstract
HIV infection causes bone loss. We previously reported that immunosuppression-mediated B-cell production of receptor activator of NF-κB ligand (RANKL) coupled with decline in osteoprotegerin correlate with decreased bone mineral density (BMD) in untreated HIV infection. Paradoxically, antiretroviral therapy (ART) worsens bone loss although existing data suggest that such loss is largely independent of specific antiretroviral regimen. This led us to hypothesize that skeletal deterioration following HIV disease reversal with ART may be related to T-cell repopulation and/or immune reconstitution. Here we transplant T cells into immunocompromised mice to mimic ART-induced T-cell expansion. T-cell reconstitution elicits RANKL and TNFα production by B cells and/or T cells, accompanied by enhanced bone resorption and BMD loss. Reconstitution of TNFα- or RANKL-null T-cells and pharmacological TNFα antagonist all protect cortical, but not trabecular bone, revealing complex effects of T-cell reconstitution on bone turnover. These findings suggest T-cell repopulation and/or immune reconstitution as putative mechanisms for bone loss following ART initiation.
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Affiliation(s)
- Ighovwerha Ofotokun
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30303, USA
- Grady Healthcare System, Atlanta, Georgia 30303, USA
| | - Kehmia Titanji
- Division of Endocrinology &Metabolism &Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Tatyana Vikulina
- Division of Endocrinology &Metabolism &Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Susanne Roser-Page
- Atlanta Department of Veterans Affairs Medical Center, Decatur, Georgia 30033, USA
| | - Masayoshi Yamaguchi
- Division of Endocrinology &Metabolism &Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Majd Zayzafoon
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35223, USA
| | - Ifor R Williams
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30303, USA
| | - M Neale Weitzmann
- Division of Endocrinology &Metabolism &Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30322, USA
- Atlanta Department of Veterans Affairs Medical Center, Decatur, Georgia 30033, USA
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21
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Beaupere C, Garcia M, Larghero J, Fève B, Capeau J, Lagathu C. The HIV proteins Tat and Nef promote human bone marrow mesenchymal stem cell senescence and alter osteoblastic differentiation. Aging Cell 2015; 14:534-46. [PMID: 25847297 PMCID: PMC4531068 DOI: 10.1111/acel.12308] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2014] [Indexed: 12/28/2022] Open
Abstract
To maintain bone mass turnover and bone mineral density (BMD), bone marrow (BM) mesenchymal stem cells (MSCs) are constantly recruited and subsequently differentiated into osteoblasts. HIV-infected patients present lower BMD than non-HIV infected individuals and a higher prevalence of osteopenia/osteoporosis. In antiretroviral treatment (ART)-naive patients, encoded HIV proteins represent pathogenic candidates. They are released by infected cells within BM and can impact on neighbouring cells. In this study, we tested whether HIV proteins Tat and/or Nef could induce senescence of human BM-MSCs and reduce their capacity to differentiate into osteoblasts. When compared to nontreated cells, MSCs chronically treated with Tat and/or Nef up to 30 days reduced their proliferative activity and underwent early senescence, associated with increased oxidative stress and mitochondrial dysfunction. The antioxidant molecule N-acetyl- cysteine had no or minimal effects on Tat- or Nef-induced senescence. Tat but not Nef induced an early increase in NF-κB activity and cytokine/chemokine secretion. Tat-induced effects were prevented by the NF-κB inhibitor parthenolide, indicating that Tat triggered senescence via NF-κB activation leading to oxidative stress. Otherwise, Nef- but not Tat-treated cells displayed early inhibition of autophagy. Rapamycin, an autophagy inducer, reversed Nef-induced senescence and oxidative stress. Moreover, Tat+Nef had cumulative effects. Finally, Tat and/or Nef decreased the MSC potential of osteoblastic differentiation. In conclusion, our in vitro data show that Tat and Nef could reduce the number of available precursors by inducing MSC senescence, through either enhanced inflammation or reduced autophagy. These results offer new insights into the pathophysiological mechanisms of decreased BMD in HIV-infected patients.
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Affiliation(s)
- Carine Beaupere
- Sorbonne Universités; UPMC Univ Paris 06; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- INSERM; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
| | - Marie Garcia
- Sorbonne Universités; UPMC Univ Paris 06; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- INSERM; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
| | - Jerome Larghero
- Inserm; UMR1160; Institut Universitaire d'Hématologie; Hôpital Saint-Louis; 75010 Paris France
- AP-HP; Unité de Thérapie Cellulaire et CIC de Biothérapies; Hôpital Saint Louis; Paris France
- Univ Paris Diderot; Sorbonne Paris Cité F-75475 Paris France
| | - Bruno Fève
- Sorbonne Universités; UPMC Univ Paris 06; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- INSERM; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
- APHP; Hôpital Saint-Antoine; F-75012 Paris France
| | - Jacqueline Capeau
- Sorbonne Universités; UPMC Univ Paris 06; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- INSERM; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
- APHP; Hôpital Tenon; F-75020 Paris France
| | - Claire Lagathu
- Sorbonne Universités; UPMC Univ Paris 06; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- INSERM; UMR_S 938; CDR Saint-Antoine F-75012 Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
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Takeda K, Adhikari R, Yamada KM, Dhawan S. Hemin activation of innate cellular response blocks human immunodeficiency virus type-1-induced osteoclastogenesis. Biochem Biophys Res Commun 2015; 464:7-12. [PMID: 25998388 DOI: 10.1016/j.bbrc.2015.05.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 05/11/2015] [Indexed: 12/23/2022]
Abstract
The normal skeletal developmental and homeostatic process termed osteoclastogenesis is exacerbated in numerous pathological conditions and causes excess bone loss. In cancer and HIV-1-infected patients, this disruption of homeostasis results in osteopenia and eventual osteoporesis. Counteracting the factors responsible for these metabolic disorders remains a challenge for preventing or minimizing this co-morbidity associated with these diseases. In this report, we demonstrate that a hemin-induced host protection mechanism not only suppresses HIV-1 associated osteoclastogenesis, but it also exhibits anti-osteoclastogenic activity for non-infected cells. Since the mode of action of hemin is both physiological and pharmacological through induction of heme oxygenase-1 (HO-1), an endogenous host protective response to an FDA-licensed therapeutic used to treat another disease, our study suggests an approach to developing novel, safe and effective therapeutic strategies for treating bone disorders, because hemin administration in humans has previously met required FDA safety standards.
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Affiliation(s)
- Kazuyo Takeda
- Microscopy and Imaging Core Facility, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
| | - Rewati Adhikari
- Division of Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Kenneth M Yamada
- National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Subhash Dhawan
- Division of Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA.
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Brown TT, Hoy J, Borderi M, Guaraldi G, Renjifo B, Vescini F, Yin MT, Powderly WG. Recommendations for evaluation and management of bone disease in HIV. Clin Infect Dis 2015; 60:1242-51. [PMID: 25609682 DOI: 10.1093/cid/civ010] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Thirty-four human immunodeficiency virus (HIV) specialists from 16 countries contributed to this project, whose primary aim was to provide guidance on the screening, diagnosis, and monitoring of bone disease in HIV-infected patients. Four clinically important questions in bone disease management were identified, and recommendations, based on literature review and expert opinion, were agreed upon. Risk of fragility fracture should be assessed primarily using the Fracture Risk Assessment Tool (FRAX), without dual-energy X-ray absorptiometry (DXA), in all HIV-infected men aged 40-49 years and HIV-infected premenopausal women aged ≥40 years. DXA should be performed in men aged ≥50 years, postmenopausal women, patients with a history of fragility fracture, patients receiving chronic glucocorticoid treatment, and patients at high risk of falls. In resource-limited settings, FRAX without bone mineral density can be substituted for DXA. Guidelines for antiretroviral therapy should be followed; adjustment should avoid tenofovir disoproxil fumarate or boosted protease inhibitors in at-risk patients. Dietary and lifestyle management strategies for high-risk patients should be employed and antiosteoporosis treatment initiated.
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Affiliation(s)
- Todd T Brown
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jennifer Hoy
- Department of Infectious Diseases, Alfred Hospital and Monash University, Melbourne, Australia
| | - Marco Borderi
- Infectious Diseases Unit, Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna
| | - Giovanni Guaraldi
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Boris Renjifo
- Global Medical Affairs Virology, Global Pharmaceutical Research and Development, AbbVie, North Chicago, Illinois
| | - Fabio Vescini
- Endocrinology and Metabolism Unit, University Hospital "Santa Maria della Misericordia," Udine, Italy
| | - Michael T Yin
- Department of Medicine, Columbia University Medical Center, New York, New York
| | - William G Powderly
- Division of Infectious Diseases, Washington University School of Medicine, St Louis, Missouri
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Abstract
Osteomalacia is a rare disorder of bone metabolism leading to reduced bone mineralization. Underlying vitamin D deficiency and a disturbed phosphate metabolism (so-called hypophosphatemic osteomalacia) can cause the disease. Leading symptoms are dull localized or generalized bone pain, muscle weakness and cramps as well as increased incidence of falls. Rheumatic diseases, such as polymyalgia rheumatica, rheumatoid arthritis, myositis and fibromyalgia must be considered in the differential diagnosis. Alkaline phosphatase (AP) is typically elevated in osteomalacia while serum phosphate and/or 25-OH vitamin D3 levels are reduced. The diagnosis of osteomalacia can be confirmed by an iliac crest bone biopsy. Histological correlate is reduced or deficient mineralization of the newly synthesized extracellular matrix. Treatment strategies comprise supplementation of vitamin D and calcium and for patients with intestinal malabsorption syndromes vitamin D and calcium are also given parenterally. In renal phosphate wasting syndromes substitution of phosphate is the treatment of choice, except for tumor-induced osteomalacia when removal of the tumor leads to a cure in most cases.
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25
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Investigation of microstructure of bone tissue in mandibles of newborn rats after maternal treatment with antiretroviral drugs. Biocybern Biomed Eng 2015. [DOI: 10.1016/j.bbe.2014.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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d'Ettorre G, Ceccarelli G, Giustini N, Mastroianni CM, Silvestri G, Vullo V. Taming HIV-related inflammation with physical activity: a matter of timing. AIDS Res Hum Retroviruses 2014; 30:936-44. [PMID: 25055246 DOI: 10.1089/aid.2014.0069] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Many sets of data indicate that HIV-infected individuals maintain a low level of chronic immune activation and inflammation even in the presence of effective antiretroviral therapy (ART). This residual immune activation seems to be associated with accelerated aging and an increased incidence of non-AIDS-defining illnesses. Several published studies suggest that physical activity is a beneficial nonpharmacological intervention to reduce chronic inflammation. However, currently available data on the potential benefits of regular physical exercises for HIV-infected individuals are limited. Nonetheless, increasing evidence suggests that the introduction of regular physical exercise in the clinical management of HIV-infected individuals may have a significant positive impact in reducing some of the long-term complications of both infection and ART. Based on a comprehensive review of the existing data, we propose that regular physical exercise should be further studied as a potential antiinflammatory, nonpharmacological approach to be used to treat HIV residual disease and non-AIDS-defining illnesses in ART-treated HIV-infected individuals.
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Affiliation(s)
- Gabriella d'Ettorre
- Department of Public Health and Infectious Diseases, Istituto Pasteur-Fondazione Cenci Bolognetti, University of Rome “Sapienza,” Rome, Italy
| | - Giancarlo Ceccarelli
- Department of Public Health and Infectious Diseases, Istituto Pasteur-Fondazione Cenci Bolognetti, University of Rome “Sapienza,” Rome, Italy
| | - Noemi Giustini
- Department of Public Health and Infectious Diseases, Istituto Pasteur-Fondazione Cenci Bolognetti, University of Rome “Sapienza,” Rome, Italy
| | - Claudio M. Mastroianni
- Department of Infectious Diseases, Istituto Pasteur-Fondazione Cenci Bolognetti, University of Rome “Sapienza,” Polo Pontino, Italy
| | - Guido Silvestri
- Department of Pathology, Emory University School of Medicine and Yerkes National Primate Research Center, Atlanta, Georgia
| | - Vincenzo Vullo
- Department of Public Health and Infectious Diseases, Istituto Pasteur-Fondazione Cenci Bolognetti, University of Rome “Sapienza,” Rome, Italy
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27
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Abstract
BACKGROUND Despite a wide body of literature supporting the use of antenatal antiretrovirals (ARV) for the prevention of mother-to-child transmission, there remains a need for continued monitoring as the intrauterine interval is a critical period during which fetal programming influences the future health and development of the child. METHODS We conducted a systematic review of the current literature addressing potential metabolic complications of in utero HIV and ARV exposure. We describe studies evaluating metabolic outcomes such as intrauterine and early postnatal growth, bone health and mitochondrial toxicity. RESULTS Overall, infants exposed to HIV/ARV do not appear to exhibit vastly compromised intrauterine or early postnatal growth. However, some studies on the effect of combination antiretroviral therapy on small for gestational age and low birth weight outcomes in low-middle income countries show a risk for small for gestational age/low birth weight while those in the United States do not. Postnatal growth to 1 year does not appear to be affected by intrauterine tenofovir exposure in African studies, but a US study found statistically significant differences in length for age z scores (LAZ) at 1 year. Little data exists on long-term bone health. Mitochondrial toxicity including abnormal mitochondrial morphology and DNA content, as well as neurologic deficits and death, have been demonstrated in HIV/ARV-exposed infants. CONCLUSION Although gross measures of metabolic well-being appear to be reassuring, careful vigilance of even small risks for potential serious adverse effects to infants exposed to intrauterine HIV/ARVs is warranted as intrauterine fetal metabolic programming may substantially impact the future health of the child.
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Güerri-Fernández R, Villar-García J, Díez-Pérez A, Prieto-Alhambra D. HIV infection, bone metabolism, and fractures. ACTA ACUST UNITED AC 2014; 58:478-83. [DOI: 10.1590/0004-2730000003323] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 05/12/2014] [Indexed: 11/22/2022]
Abstract
With the advent of high active antiretroviral therapy there was a significant improvement on HIV subjects survival. Thus, bone changes related to HIV became an important aspect of these individuals. HIV affects bone remodeling causing bone fragility. In addition, antiretroviral therapy may also negatively affect bone metabolism. Several studies describe an increased incidence of fractures in these patients when compared with controls without the disease. The European Society of AIDS (EACS), and other societies, have included guidance on management of osteoporosis in HIV-infected patients emphasizing the identification of patients with low bone mass. Supplementation of calcium and vitamin D and the use of alendronate in these individuals should be recommended on a case base.
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Affiliation(s)
| | | | | | - Daniel Prieto-Alhambra
- University of Oxford, UK; University of Southampton, UK; Universitat Autònoma de Barcelona, Spain
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29
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Lafferty MK, Fantry L, Bryant J, Jones O, Hammoud D, Weitzmann MN, Lewis GK, Garzino-Demo A, Reid W. Elevated suppressor of cytokine signaling-1 (SOCS-1): a mechanism for dysregulated osteoclastogenesis in HIV transgenic rats. Pathog Dis 2014; 71:81-9. [PMID: 24376119 DOI: 10.1111/2049-632x.12117] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 11/27/2013] [Accepted: 11/27/2013] [Indexed: 11/28/2022] Open
Abstract
Accelerated bone loss leading to osteopenia, osteoporosis, and bone fracture is a major health problem that is increasingly common in human immunodeficiency virus (HIV)-infected patients. The underlying pathogenesis is unclear but occurs in both treatment naïve and individuals receiving antiretroviral therapies. We developed an HIV-1 transgenic rat that exhibits many key features of HIV disease including HIV-1-induced changes in bone mineral density (BMD). A key determinant in the rate of bone loss is the differentiation of osteoclasts, the cells responsible for bone resorption. We found HIV-1 transgenic osteoclast precursors (OCP) express higher levels of suppressor of cytokine signaling-1 (SOCS-1) and TNF receptor-associated factor 6 (TRAF6) and are resistant to interferon-gamma (IFN-γ) mediated suppression of osteoclast differentiation. Our data suggest that dysregulated SOCS-1 expression by HIV-1 transgenic OCP promotes osteoclastogenesis leading to the accelerated bone loss observed in this animal model. We propose that elevated SOCS-1 expression in OCP antagonizes the inhibitory effects of IFN-γ and enhances receptor activator of NF-kB ligand (RANKL) signaling that drives osteoclast differentiation and activation. Understanding the molecular mechanisms of HIV-associated BMD changes has the potential to detect and treat bone metabolism disturbances early and improve the quality of life in patients.
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Affiliation(s)
- Mark K Lafferty
- Division of Basic Science and Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA; Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
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30
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Hernandez-Vallejo SJ, Beaupere C, Larghero J, Capeau J, Lagathu C. HIV protease inhibitors induce senescence and alter osteoblastic potential of human bone marrow mesenchymal stem cells: beneficial effect of pravastatin. Aging Cell 2013; 12:955-65. [PMID: 23795945 DOI: 10.1111/acel.12119] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2013] [Indexed: 12/22/2022] Open
Abstract
HIV-infected patients receiving antiretroviral therapy present an increased prevalence of age-related comorbidities, including osteoporosis. HIV protease inhibitors (PIs) have been suspected to participate to bone loss, but the mechanisms involved are unknown. In endothelial cells, some PIs have been shown to induce the accumulation of farnesylated prelamin-A, a biomarker of cell aging leading to cell senescence. Herein, we hypothesized that these PIs could induce premature aging of osteoblast precursors, human bone marrow mesenchymal stem cells (MSCs), and affect their capacity to differentiate into osteoblasts. Senescence was studied in proliferating human MSCs after a 30-day exposure to atazanavir and lopinavir with or without ritonavir. When compared to untreated cells, PI-treated MSCs had a reduced proliferative capacity that worsened with increasing passages. PI treatment led to increased oxidative stress and expression of senescence markers, including prelamin-A. Pravastatin, which blocks prelamin-A farnesylation, prevented PI-induced senescence and oxidative stress, while treatment with antioxidants partly reversed these effects. Moreover, senescent MSCs presented a decreased osteoblastic potential, which was restored by pravastatin treatment. Because age-related bone loss is associated with increased bone marrow fat, we also evaluated the capacity of PI-treated MSCs to differentiate into adipocyte. We observed an altered adipocyte differentiation in PI-treated MSCs that was reverted by pravastatin. We have shown that some PIs alter osteoblast formation by affecting their differentiation potential in association with altered senescence in MSCs, with a beneficial effect of statin. These data corroborate the clinical observations and allow new insight into pathophysiological mechanisms of PI-induced bone loss in HIV-infected patients.
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Affiliation(s)
- Sandra J. Hernandez-Vallejo
- INSERM UMRS938; Paris France
- UPMC Univ Paris 06; UMRS 938; Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
| | - Carine Beaupere
- INSERM UMRS938; Paris France
- UPMC Univ Paris 06; UMRS 938; Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
| | - Jerome Larghero
- Cell Therapy Unit; Hôpital Saint Louis; Paris France
- Univ Paris Diderot; Sorbonne Paris Cite; Paris France
- INSERM UMRS940; Hôpital Saint-Louis; Paris France
| | - Jacqueline Capeau
- INSERM UMRS938; Paris France
- UPMC Univ Paris 06; UMRS 938; Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
- APHP; Hôpital Tenon; Paris France
| | - Claire Lagathu
- INSERM UMRS938; Paris France
- UPMC Univ Paris 06; UMRS 938; Paris France
- Institute of Cardiometabolism and Nutrition; Paris France
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31
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Marques de Menezes EG, de Paula FJA, Machado AA, de Assis Pereira F, Barbosa Júnior F, Navarro AM. Impact of antiretroviral therapy on bone metabolism markers in HIV-seropositive patients. Bone 2013; 57:62-7. [PMID: 23891908 DOI: 10.1016/j.bone.2013.07.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 07/07/2013] [Accepted: 07/09/2013] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate the impact of antiretroviral therapy (ART) on bone and mineral metabolism and to determine the occurrence of osteopenia and/or osteoporosis in HIV-infected patients taking ART or not. METHODS A cross-sectional study was conducted on 50 HIV-seropositive adult men treated with or not treated with ART. Dual energy X-ray absorptiometry (DXA) was performed and biochemical analyses of the following markers were carried out: FSH, LH, testosterone, total calcium, phosphorus (Pi), magnesium (Mg), albumin, 24h calcium, creatinine, urea, parathormone (PTH), insulin-like growth factor 1 (IGF-I), 25 hydroxyvitamin D (25-OH-D), osteocalcin, and urinary deoxypyridinoline (DPD). The participants were divided into two groups according to ART use or not: Group A, 10 treatment-naive subjects; Group B, ART use for >2years, subdivided into: Group B1, 10 subjects treated with protease inhibitors (PIs) and nucleoside/nucleotide analog reverse transcriptase inhibitors (NRTIs) and Group B2, 10 subjects treated with NRTIs and non-nucleoside analog reverse transcriptase inhibitors (NNRTIs); and Group C, subjects treated with ART <2years, subdivided into: Group C1, 10 subjects treated with PIs and NRTIs and Group C2, 10 subjects treated with NRTIs and NNRTIs. RESULTS The values of the bone formation marker, osteocalcin, were normal in all groups, whereas urinary DPD values were increased in all groups. Whole body DXA revealed a higher percentage of osteopenia (80%) in Group B2. Lumbar spine DXA showed osteoporosis in Groups A and B1 (10%) and total femur DXA in Group B2 (10%). CONCLUSION The increased bone reabsorption marker indicated a high reabsorptive activity of bone tissue. These data indicate a greater osteoclastic activity in bone loss in HIV-infected patients on ART.
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32
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Abstract
BACKGROUND Vitamin D insufficiency and HIV infection are both risk factors for chronic disorders, so it is important to consider vitamin D status in HIV-infected patients. METHODS We prospectively investigated serum 25-hydroxyvitamin D (25(OH)D) concentrations, determined by radioimmunoassay, in 113 HIV-infected children (age≤24 years) and 54 healthy controls matched for age and phototype. We assessed the prevalence of vitamin D deficiency and insufficiency (VDD and VDI) defined as 25(OH)D titers of <10 ng/mL and between 10 and 30 ng/mL, respectively, and their predictive factors. RESULTS The overall prevalence of VDD and VDI was 38.9% and 58.7%, respectively. Mean serum 25(OH)D concentrations were significantly higher in the HIV group than the control group (14.2±6.9 ng/mL vs. 10.4±5 ng/mL, P<0.001). Variables significantly associated with low serum 25(OH)D concentrations in HIV-infected children were dark phototype (P<0.001) and age (r=-0.19, P=0.03). Patients receiving efavirenz had a trend toward lower serum 25(OH)D concentrations (11.1±4.6 ng/mL vs. 14.6±7 ng/mL, P=0.1). Dark phototype was the only independent risk factor for VDD in HIV-infected children (odds ratio=14.6; 95% confidence interval: 2.4-89.9, P=0.004). CONCLUSIONS VDD and VDI were common in both HIV-infected and control groups, and serum 25(OH)D concentrations were significantly lower in controls than in HIV-infected children.
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33
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Affiliation(s)
- Amrit Bhangoo
- Pediatric Endocrinology, Miller Children's Hospital, Long Beach, CA, USA
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34
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Abstract
Human immunodeficiency virus (HIV) infection has progressed to a chronic disease and HIV positive individuals are living longer lives. This has lead to an increase in morbidity and mortality due to secondary issues, one being HIV bone disease. HIV infected pediatric and adult populations have a greater incidence in reduction of BMD as compared to the controls. Osteoporosis has been reported to be present in up to 15 % of HIV positive patients. We are starting to understand the mechanism behind the changes in HIV bone disease. Viral proteins interfere with osteoblastic activity either by direct interaction or by the inflammatory process that they induce. Anti-viral management, including highly active antiretroviral therapy (HAART), protease inhibitors, and nucleoside/nucleotide reverse transcriptase inhibitors (NRTI) also are involved in disrupting proper bone metabolism. Vitamin D levels have strong correlation with bone disease in HIV patients, and are dependent not only to chronic disease state, but interaction of pharmacologic management and inflammatory process as well. Work up of the secondary causes of osteopenia and osteoporosis should be undertaken in all patients. DEXA scan is recommended in all post-menopausal women with HIV, all HIV infected men 50 years of age or older and in those with a history of fragility fractures regardless of age or gender. Preventive measures include adequate nutrition, calcium and Vitamin D intake daily, muscle strengthening and balance exercises to increase BMD and reduce fractures. Bisphosphonates are considered to be the first line for the treatment of HIV associated bone disease. This review will describe how the balanced mechanism of bone metabolism is interrupted by the HIV infection itself, the complications that arise from HIV/AIDS, and its treatment options.
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Affiliation(s)
- Aristotle Panayiotopoulos
- Department of Pediatric Endocrinology, Children's Hospital at SUNY Downstate, Kings County Hospital Center, and Infants and Children's Hospital at Maimonides, 977 48th Street, Brooklyn, NY 11219, USA
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35
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[Joint collaboration in infectious diseases in China, the University of Tokyo]. Uirusu 2013; 63:37-44. [PMID: 24769576 DOI: 10.2222/jsv.63.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Recent rapid developments in Asian and African countries bring an opportunity of cross-species transmission of pathogens through unprecedented contacts between people and wild animals. Furthermore, increase of global exchanges of people and products facilitates a rapid spread of infectious diseases worldwide. China has an enormous population with diverse ethnic groups within its wide territory; furthermore, it is experiencing very rapid urbanization. These conditions make China a potential epicenter of emerging infectious diseases. One good example is the SARS incidence in 2003. Therefore, it is essential to include China in a network of research groups of infectious diseases. Here we summarize the ongoing collaborations between the Institute of Medical Science, the University of Tokyo, and its Chinese counterparts.
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36
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Prevalence and Risk Factors for Loss of Bone Mineral Density in Male Japanese Patients With HIV. J Acquir Immune Defic Syndr 2013; 62:e25-7. [DOI: 10.1097/qai.0b013e3182718d4c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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HIV and Bone Disease: A Perspective of the Role of microRNAs in Bone Biology upon HIV Infection. J Osteoporos 2013; 2013:571418. [PMID: 24286015 PMCID: PMC3826318 DOI: 10.1155/2013/571418] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 08/15/2013] [Accepted: 09/11/2013] [Indexed: 01/01/2023] Open
Abstract
Increased life expectancy and the need for long-term antiretroviral therapy have brought new challenges to the clinical management of HIV-infected individuals. The prevalence of osteoporosis and fractures is increased in HIV-infected patients; thus optimal strategies for risk management and treatment in this group of patients need to be defined. Prevention of bone loss is an important component of HIV care as the HIV population grows older. Understanding the mechanisms by which HIV infection affects bone biology leading to osteoporosis is crucial to delineate potential adjuvant treatments. This review focuses on HIV-induced osteoporosis within the context of microRNAs (miRNAs) by reviewing first basic concepts of bone biology as well as current knowledge of the role of miRNAs in bone development. Evidence that HIV-associated osteoporosis is in part independent of therapies employed to treat HIV (HAART) is supported by cross-sectional and longitudinal studies and is the focus of this review.
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38
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Molecular Bases of Osteoporosis in HIV: The Role of the Virus and Antiretroviral Therapy. Clin Rev Bone Miner Metab 2012. [DOI: 10.1007/s12018-012-9133-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Cejtin HE. Care of the human immunodeficiency virus-infected menopausal woman. Am J Obstet Gynecol 2012; 207:87-93. [PMID: 22284959 PMCID: PMC3408554 DOI: 10.1016/j.ajog.2011.12.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 12/07/2011] [Accepted: 12/27/2011] [Indexed: 10/14/2022]
Abstract
More women than ever before are both human immunodeficiency virus infected and menopausal, because of increased survival and more frequent diagnosis in older women. Such a woman has the combined burden of her infection, its treatment, comorbid conditions, and aging. Thus, she is at risk for a variety of problems, such as disorders of bone mineral density and deficiencies in cognitive functioning. In addition to this, she experiences menopause in a unique fashion, with more symptoms and perhaps at an earlier age. The clinician caring for her must take a proactive approach to this multitude of factors that may affect her health and well-being.
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Affiliation(s)
- Helen Elizabeth Cejtin
- Department of Obstetrics and Gynecology, John H. Stroger Hospital of Cook County, Chicago, IL, USA.
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40
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Etminani-Esfahani M, Khalili H, Jafari S, Abdollahi A, Dashti-Khavidaki S. Effects of vitamin D supplementation on the bone specific biomarkers in HIV infected individuals under treatment with efavirenz. BMC Res Notes 2012; 5:204. [PMID: 22537736 PMCID: PMC3527201 DOI: 10.1186/1756-0500-5-204] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 04/11/2012] [Indexed: 11/10/2022] Open
Abstract
Background It was reported that antiretroviral drugs such as efavirenz can increase the catabolism of vitamin D in HIV infected individuals. We have not found any study that evaluated effects of vitamin D supplementation on the bone specific biomarkers in HIV positive patients under treatment with antiretroviral regimen containing efavirenz. Findings Vitamin D deficiency was detected in 88.4 % of included patients. Baseline osteocalcin, but not collagen telopeptidase, serum levels were lower than normal range in all of these individuals. Both bone biomarkers’ concentrations increased significantly (p < 0.001 for both of them) after supplementation of vitamin D and it was more predominant for osteocalcin. Conclusion In the HIV-infected patients under treatment with efavirenz, vitamin D deficiency is prevalent. After supplementation with single dose of 300,000 IU vitamin D in this population, the activation of osteoblasts and osteoclasts stimulates bone formation and resorption respectively with favorable bone formation without any adverse event. Significant percent of HIV infected individuals are vitamin d deficient that could benefit from vitamin D supplementation.
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Affiliation(s)
- Maryam Etminani-Esfahani
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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41
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Dickinson SA, Fantry LE. Use of dual-energy x-ray absorptiometry (DXA) scans in HIV-infected patients. ACTA ACUST UNITED AC 2012; 11:239-44. [PMID: 22511611 DOI: 10.1177/1545109712438751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Multiple studies have demonstrated increased rates of osteopenia and osteoporosis in HIV-infected patients but there have been no published studies on current screening practices. We conducted a retrospective chart review of 2924 patients attending an urban HIV clinic. Thirty patients (1%) had dual-energy x-ray absorptiometry (DXA) scans. Patients undergoing DXA scans were more likely to be older, women, and have nondetectable HIV viral load and CD4 count ≥200. The most frequently cited indications for screening were perimenopausal or postmenopausal status and HIV infection. Of the patients screened, 96% had osteopenia or osteoporosis with a median T-score of -1.9 and a median of 3.8 osteoporosis risk factors in addition to HIV. Of the 20 practitioners in the clinic, only 7 had patients with screening DXA scans. DXA scans are underutilized in the HIV population given the high rate of osteopenia and osteoporosis detected in this study.
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Affiliation(s)
- S A Dickinson
- 1University of Maryland Medical Center, Internal Medicine, Baltimore, MD, USA
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42
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Abstract
HIV infection and antiretroviral therapy (ART) are now established independent risk factors for osteoporosis. With a spate of recent studies reporting significant elevations in fracture prevalence in HIV patients, and a rapidly aging demographic, defining the mechanisms underlying HIV/ART-induced skeletal decline has become imperative. The recent emergence of the field of "osteoimmunology" has provided a conceptual framework to explain how the immune and skeletal systems interact. Furthermore, it is becoming clear that inflammatory states leading to perturbations in the immuno-skeletal interface, a convergence of common cells and cytokine mediators that regulate both immune and skeletal systems, conspire to imbalance bone turnover and induce osteoporosis. In this review we examine the role of inflammation in the bone loss associated with diverse inflammatory conditions and new concepts into how the underlying mechanisms by which inflammation and immune dysregulation impact bone turnover may be pertinent to the mechanisms involved in HIV/ART-induced bone loss.
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Affiliation(s)
- Ighovwerha Ofotokun
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30303, USA.
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Mora S, Giacomet V, Viganò A, Cafarelli L, Stucchi S, Pivetti V, Manfredini V, Puzzovio M, Zuccotti G. Exposure to antiretroviral agents during pregnancy does not alter bone status in infants. Bone 2012; 50:255-8. [PMID: 22080170 DOI: 10.1016/j.bone.2011.10.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 10/19/2011] [Accepted: 10/27/2011] [Indexed: 01/18/2023]
Abstract
The use of combined antiretroviral agents during pregnancy is important to prevent mother-to-child transmission of human immunodeficiency virus (HIV). Antiretroviral treatment (ARV) is associated with reduced bone mass and altered bone metabolism in HIV-infected patients. There are no data regarding the effect of ARV exposure during pregnancy on newborns and infants. We therefore studied 38 subjects born from HIV-infected mothers, and we measured the speed-of-sound (SOS) at the tibia by quantitative ultrasonography (QUS) just after birth. QUS measurements at mid-tibia is easily performed in infants with the appropriate probe. Nevertheless, at this skeletal site only cortical bone is present, and therefore QUS measurements reflect the status of only one kind of bone tissue. We also measured bone alkaline phosphatase (BAP) and C-terminal telopeptide of type I collagen (CTX) in the cord blood as bone formation and resorption markers, respectively. SOS measurements were repeated at 4 and 12 months of age. As a control group we studied 94 subjects born from HIV-negative mothers. At birth the median (range) SOS of ARV-exposed neonates was 3006 (2870-3168) m/s, while that of control subjects was 3007 (2757-3311) m/s. The difference was not significant. BAP concentration of ARV-exposed was 103.6 (31.6-182.8) U/L, not different from that of control subjects (104.4 [43.2-227.2] U/L). CTX concentrations were 1.07 (0.26-2.8) ng/mL, and 1.38 (0.34-4.2) ng/mL in ARV-exposed and control subjects, respectively. SOS measurements at 4 months and 12 months of age were available for 17 ARV-exposed subjects and for 57 control subjects. SOS values changed significantly over time in both groups (F=6.1; P<0.0001). No differences were present between ARV-exposed and control subjects at 4 and 12 months. Our study suggests that ARV exposure during intrauterine life does not affect negatively bone metabolism and bone development, and that the changes occurring in bone QUS measurements during the first year of life in ARV-exposed subjects are similar to those occurring in healthy control infants.
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Affiliation(s)
- Stefano Mora
- Laboratory of Pediatric Endocrinology, BoNetwork, Division of Metabolic and Cardiovascular Sciences, San Raffaele Scientific Institute, via Olgettina 60, 20132 Milan, Italy.
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44
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Segarra-Newnham M, Soffler SL. Osteoporosis and Vitamin D Deficiency in HIV-Positive Patients. J Pharm Technol 2011. [DOI: 10.1177/875512251102700603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Objective: To review the epidemiology and pathophysiology of osteoporosis in patients with HIV infection and discuss vitamin D deficiency and the treatment of HIV-positive patients with osteoporosis. Data Sources: A search of PubMed (1980–June 2011) was conducted using the terms osteoporosis, HIV, vitamin D deficiency, and treatment. Study Selection and Data Extraction: Epidemiologic studies, clinical trials, and meta-analyses published in English were included. A manual review of the bibliographies of available literature was conducted and relevant articles were reviewed for inclusion. Data Synthesis: Patients with HIV infection are living longer with the use of potent antiretroviral therapy (ART) and are at increased risk for osteoporosis. Several studies have shown that HIV infection can affect bone health and increase the risk for osteoporosis. In addition, ART, and tenofovir in particular, may affect bone turnover. Studies and meta-analyses have shown an increased prevalence of osteopenia and osteoporosis in HIV-positive patients compared to noninfected controls. Recent reports also show increased prevalence of fractures and low vitamin D concentrations in HIV-positive patients. Osteoporosis treatments used in patients with HIV infection are similar to treatments for noninfected patients. HIV-positive patients should be monitored and treated to prevent the progression and complications of osteoporosis. Conclusions: HIV-positive patients are at increased risk for osteoporosis and vitamin D deficiency due to disease and treatment influences on bone health. These patients should be identified and treated to prevent the morbidity and mortality associated with osteoporosis.
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Affiliation(s)
- Marisel Segarra-Newnham
- MARISEL SEGARRA-NEWNHAM PharmD MPH FCCP BCPS, Clinical Pharmacy Specialist in Infectious Diseases, Veterans Affairs Medical Center (VAMC), West Palm Beach, FL
| | - Sarah L Soffler
- SARAH L SOFFLER, PharmD student, University of Florida, Gainesville, FL
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Kowalski J, Cholewińska G. An increased risk of osteoporosis in a HIV-infected patient in the era of HAART. Case report analysis. HIV & AIDS REVIEW 2011. [DOI: 10.1016/j.hivar.2011.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Post FA, McCloskey EV, Compston JE, Bowman CA, Hay PE, Johnson MA, Mallon PWG, Peters BS, Samarawickrama A, Tudor-Williams G. Prevention of bone loss and management of fracture risk in HIV-infected individuals: case studies and recommendations for different patient subgroups. Future Virol 2011. [DOI: 10.2217/fvl.11.44] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Increased life-expectancy and the need for long-term antiretroviral therapy have brought new challenges to the clinical management of HIV-infected individuals. While the prevalence of osteoporosis and fractures is probably increased in HIV-infected patients, optimal strategies for risk assessment and treatment in this relatively young population are yet to be defined. Prevention of bone loss is likely to become an important component of HIV care as the HIV-infected patient population grows older. In this article, we present an overview of the literature on bone loss in individuals with HIV and discuss the practical application of the European AIDS Clinical Society (EACS) guidelines to a range of clinical case scenarios.
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Affiliation(s)
| | - Eugene V McCloskey
- WHO Collaborating Centre for Metabolic Bone Diseases, University of Sheffield, UK
| | - Juliet E Compston
- University of Cambridge School of Clinical Medicine, Department of Medicine, Addenbrooke’s Hospital, Cambridge, UK
| | - Christine A Bowman
- Communicable Diseases Directorate, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Phillip E Hay
- St George’s Hospital NHS Trust & Centre for Infection, St George’s, University of London, UK
| | | | - Patrick WG Mallon
- HIV Molecular Research Group, School of Medicine & Medical Sciences, University College Dublin, Ireland
| | - Barry S Peters
- King’s College London School of Medicine at Guy’s, King’s College & St Thomas’ Hospitals, Weston Education Centre, Cutcombe Road, London, SE5 9RJ, UK
- King’s College London School of Medicine at Guy’s, King’s College & St Thomas’ Hospitals, Harrison Wing, St Thomas’ Hospital, London, SE1 1UL, UK
| | | | - Gareth Tudor-Williams
- Imperial College London & Imperial College Healthcare NHS Trust, St Mary’s Hospital, London, UK
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Algorithm for the Management of Osteoporosis. South Med J 2011; 104:247. [DOI: 10.1097/smj.0b013e31820c02fc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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