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Schinas G, Schinas I, Ntampanlis G, Polyzou E, Gogos C, Akinosoglou K. Bone Disease in HIV: Need for Early Diagnosis and Prevention. Life (Basel) 2024; 14:522. [PMID: 38672792 PMCID: PMC11051575 DOI: 10.3390/life14040522] [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: 02/29/2024] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
The transformation of HIV into a manageable chronic condition has unveiled new clinical challenges associated with aging-related pathologies, including bone disease. This review explores the intricate relationship between HIV, antiretroviral therapy (ART), and bone disease, highlighting the necessity of early diagnosis and preventative strategies to mitigate the increased risk of osteopenia, osteoporosis, and fractures in people living with HIV (PLWHIV). It synthesizes the current literature to elucidate the multifactorial etiology of bone pathology in this population, that includes direct viral effects, chronic immune activation, ART-associated risks, and the impact of traditional risk factors for bone loss. Through a critical examination of modern diagnostic methods, lifestyle modifications, evidence-based preventive actions, and pharmacological treatments, the necessity for comprehensive management is highlighted, along with recommendations for integrated healthcare approaches vital for achieving optimal patient outcomes. By advocating for a proactive, patient-centered, and multidisciplinary strategy, this review proposes a plan to integrate bone health into standard HIV care through active risk identification, vigilant screening, effective preventive measures, tailored treatments, and informed decision-making, in an effort to ultimately enhance the quality of life for PLWHIV.
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Affiliation(s)
- Georgios Schinas
- School of Medicine, University of Patras, 26504 Rio, Greece; (G.S.); (G.N.); (E.P.); (C.G.)
| | - Ioannis Schinas
- School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece;
| | - Georgios Ntampanlis
- School of Medicine, University of Patras, 26504 Rio, Greece; (G.S.); (G.N.); (E.P.); (C.G.)
| | - Eleni Polyzou
- School of Medicine, University of Patras, 26504 Rio, Greece; (G.S.); (G.N.); (E.P.); (C.G.)
| | - Charalambos Gogos
- School of Medicine, University of Patras, 26504 Rio, Greece; (G.S.); (G.N.); (E.P.); (C.G.)
| | - Karolina Akinosoglou
- School of Medicine, University of Patras, 26504 Rio, Greece; (G.S.); (G.N.); (E.P.); (C.G.)
- Department of Internal Medicine and Infectious Diseases, University General Hospital of Patras, 26504 Rio, Greece
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2
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Ahmed M, Mital D, Abubaker NE, Panourgia M, Owles H, Papadaki I, Ahmed MH. Bone Health in People Living with HIV/AIDS: An Update of Where We Are and Potential Future Strategies. Microorganisms 2023; 11:microorganisms11030789. [PMID: 36985362 PMCID: PMC10052733 DOI: 10.3390/microorganisms11030789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 03/22/2023] Open
Abstract
The developments in Human Immunodeficiency Virus (HIV) treatment and in the care of people living with HIV (PLWHIV) and Acquired Immunodeficiency Syndrome (AIDS) over the last three decades has led to a significant increase in life expectancy, on par with HIV-negative individuals. Aside from the fact that bone fractures tend to occur 10 years earlier than in HIV-negative individuals, HIV is, per se, an independent risk factor for bone fractures. A few available antiretroviral therapies (ARVs) are also linked with osteoporosis, particularly those involving tenofovir disoproxil fumarate (TDF). HIV and hepatitis C (HCV) coinfection is associated with a greater risk of osteoporosis and fracture than HIV monoinfection. Both the Fracture Risk Assessment Tool (FRAX) and measurement of bone mineral density (BMD) via a DEXA scan are routinely used in the assessment of fracture risk in individuals living with HIV, as bone loss is thought to start between the ages of 40 and 50 years old. The main treatment for established osteoporosis involves bisphosphonates. Supplementation with calcium and vitamin D is part of clinical practice of most HIV centers globally. Further research is needed to assess (i) the cut-off age for assessment of osteoporosis, (ii) the utility of anti-osteoporotic agents in PLWHIV and (iii) how concomitant viral infections and COVID-19 in PLWHIV can increase risk of osteoporosis.
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Affiliation(s)
- Musaab Ahmed
- College of Medicine, Ajman University, Ajman P.O. Box 346, United Arab Emirates
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Dushyant Mital
- Department of HIV and Blood Borne Virus, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Nuha Eljaili Abubaker
- Clinical Chemistry Department, College of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum P.O. Box 407, Sudan
| | - Maria Panourgia
- Department of Geriatric Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Henry Owles
- Department of Geriatric Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Ioanna Papadaki
- Department of Rheumatology, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Mohamed H. Ahmed
- Department of Geriatric Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
- Department of Medicine and HIV Metabolic Clinic, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
- Correspondence:
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3
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Beltran-Bless AA, Clemons MJ, Fesl C, Greil R, Pond GR, Balic M, Vandermeer L, Bjelic-Radisic V, Singer CF, Steger GG, Helfgott R, Egle D, Sölkner L, Gampenrieder SP, Kacerovsky-Strobl S, Suppan C, Ritter M, Rinnerthaler G, Pfeiler G, Fohler H, Hlauschek D, Hilton J, Gnant M. Does the number of 6-monthly adjuvant zoledronate infusions received affect treatment efficacy for early breast cancer? A sub-study of ABCSG-12. Eur J Cancer 2023; 180:108-116. [PMID: 36592505 DOI: 10.1016/j.ejca.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/30/2022] [Accepted: 12/03/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The widespread adoption of adjuvant bisphosphonate therapy for postmenopausal early breast cancer (EBC) patients was based on results of the Early Breast Cancer Trialist Group (EBCTCG) meta-analysis. Despite multiple regimens evaluated, there was no signal of varying efficacy with type, dose/dose intensity of bisphosphonate administration. We evaluated the effect of early treatment cessation using long-term outcome data from the ABCSG-12 trial. PATIENTS AND METHODS ABCSG-12 randomized 1803 hormone-receptor positive EBC patients on ovarian suppression between 1999 and 2006 to receive 4 mg zoledronic acid 6-monthly or not (and tamoxifen or anastrozole, 2:2 factorial design). In the current study, we evaluated whether the number of zoledronate infusions had an impact on breast cancer-specific outcomes. We hypothesized that amongst patients who received at least one zoledronate infusion, the number of infusions had no effect on outcomes. Time-to-event endpoints were analysed with Cox models and Kaplan Meier curves starting from a 3-year landmark. BMD analysis was restricted to patients who participated in the BMD sub-study. RESULTS 725 patients who received at least one zoledronate infusion were included in the time-to-event analysis. There was no statistically significant difference in disease-free or overall survival in the patients who received ≤6 zoledronate infusions (n = 170) compared to those who received ≥7 zoledronate infusions (n = 555). CONCLUSIONS Comparable to efforts to de-escalate treatment duration in metastatic bone disease, there was no evidence to indicate that a reduced number of zoledronate infusions is associated with reduced adjuvant efficacy. Further studies to define optimal regimens of adjuvant bone-targeted therapies are required.
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Affiliation(s)
- Ana-Alicia Beltran-Bless
- Division of Medical Oncology, The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, Ontario, Canada
| | - Mark J Clemons
- Division of Medical Oncology, The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, Ontario, Canada; Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Christian Fesl
- Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria
| | - Richard Greil
- Salzburg Cancer Research Institute; 3d Medical Department, Paracelsus Medical University Salzburg; Cancer Cluster Salzburg, Austria
| | - Gregory R Pond
- Ontario Clinical Oncology Group, Department of Oncology, McMaster University, Hamilton, Ontario, Canada
| | - Marija Balic
- Division of Oncology, Department of Internal Medicine and Comprehensive Cancer Center, Medical University of Graz, Graz, Austria
| | - Lisa Vandermeer
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Vesna Bjelic-Radisic
- Breast Unit, Helios University Hospital Wuppertal, Wuppertal Germany, University Witten/Herdecke, Germany; And Department of Gynecology and Obstetrics, Medical University of Graz, Graz, Austria
| | - Christian F Singer
- Department of Gynecology and Gynecological Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Guenther G Steger
- Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Ruth Helfgott
- Department of Surgery and Breast Health Center, Ordensklinikum Linz, Linz, Austria
| | - Daniel Egle
- Department of Obstetrics and Gynecology, Medical University of Innsbruck, Innsbruck, Austria
| | - Lidija Sölkner
- Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria
| | - Simon P Gampenrieder
- Salzburg Cancer Research Institute; 3d Medical Department, Paracelsus Medical University Salzburg; Cancer Cluster Salzburg, Austria
| | | | - Christoph Suppan
- Division of Oncology, Department of Internal Medicine and Comprehensive Cancer Center, Medical University of Graz, Graz, Austria
| | - Magdalena Ritter
- Department of Obstetrics and Gynecology, Medical University of Innsbruck, Innsbruck, Austria
| | - Gabriel Rinnerthaler
- Ontario Clinical Oncology Group, Department of Oncology, McMaster University, Hamilton, Ontario, Canada
| | - Georg Pfeiler
- Department of Gynecology and Gynecological Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Hannes Fohler
- Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria
| | | | - John Hilton
- Division of Medical Oncology, The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, Ontario, Canada; Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Michael Gnant
- Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
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The effect of age on CD4+ T-cell recovery in HIV-suppressed adult participants: a sub-study from AIDS Clinical Trial Group (ACTG) A5321 and the Bone Loss and Immune Reconstitution (BLIR) study. Immun Ageing 2022; 19:4. [PMID: 34980186 PMCID: PMC8722153 DOI: 10.1186/s12979-021-00260-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 12/17/2021] [Indexed: 11/10/2022]
Abstract
AbstractOlder age could be a risk factor for suboptimal CD4+ T-cell recovery in HIV-infected patients despite successful viral suppression. However, evaluation of this effect could be confounded by age-related immune processes such as decreased thymus output, increased immune activation and exhaustion. Here, we established a semi-mechanistic population model simultaneously describing naïve and memory CD4+ T-cell trajectories in 122 participants. Covariate analysis accounting for immune activation showed that older age was significantly associated with faster apparent elimination rate of the naïve T-cells. In addition, female sex predicted slower apparent elimination rate of memory T-cells. Simulations showed that the median maximal CD4+ T-cell count on ART treatment was 593 cells/μL (IQR 442-794) in patients aged 50 years or above and 738 cells/μL (IQR 548-1002) in patients aged 18-35 years. The differences in the percentage of subjects achieving sufficient immune reconstitution (CD4+ T-cell count> 500 cells/μL) between the two age groups were 15, 21 and 26% at year 1, 4 years and steady state, respectively, suggesting that advanced age may have a greater impact on long-term CD4+ T-cell recovery.
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Olali AZ, Carpenter KA, Myers M, Sharma A, Yin MT, Al-Harthi L, Ross RD. Bone Quality in Relation to HIV and Antiretroviral Drugs. Curr HIV/AIDS Rep 2022; 19:312-327. [PMID: 35726043 DOI: 10.1007/s11904-022-00613-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE OF REVIEW People living with HIV (PLWH) are at an increased risk for osteoporosis, a disease defined by the loss of bone mineral density (BMD) and deterioration of bone quality, both of which independently contribute to an increased risk of skeletal fractures. While there is an emerging body of literature focusing on the factors that contribute to BMD loss in PLWH, the contribution of these factors to bone quality changes are less understood. The current review summarizes and critically reviews the data describing the effects of HIV, HIV disease-related factors, and antiretroviral drugs (ARVs) on bone quality. RECENT FINDINGS The increased availability of high-resolution peripheral quantitative computed tomography has confirmed that both HIV infection and ARVs negatively affect bone architecture. There is considerably less data on their effects on bone remodeling or the composition of bone matrix. Whether changes in bone quality independently predict fracture risk, as seen in HIV-uninfected populations, is largely unknown. The available data suggests that bone quality deterioration occurs in PLWH. Future studies are needed to define which factors, viral or ARVs, contribute to loss of bone quality and which bone quality factors are most associated with increased fracture risk.
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Affiliation(s)
- Arnold Z Olali
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA.,Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL, USA
| | - Kelsey A Carpenter
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA
| | - Maria Myers
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA
| | | | - Michael T Yin
- Columbia University Medical Center, New York, NY, USA
| | - Lena Al-Harthi
- Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL, USA
| | - Ryan D Ross
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA. .,Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL, USA.
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Abstract
Life expectancy of people living with HIV (PLWH) is now close to that of the HIV-uninfected population. As a result, age-related comorbidities, including osteoporosis, are increasing in PLWH. This narrative review describes the epidemiology of bone fragility in PLWH, changes of bone features over the course of HIV infection and their determinants, as well as the available evidence regarding the management of osteoporosis in PLWH. The risk of fracture is higher and increases about 10 years earlier compared to the general population. The classical risk factors of bone fragility are very widespread and are major determinants of bone health in this population. The majority of bone loss occurs during virus replication and during immune reconstitution at antiretroviral therapies (ART) initiation, which both increase osteoclast activity. Abnormalities in bone formation and mineralization have also been shown in histomorphometric studies in untreated PLWH. Measurement of bone mineral density (BMD) is the first line tool for assessing fracture risk in postmenopausal women, men above 50 years, and other HIV-infected patients with clinical risk factors for osteoporosis. FRAX underestimates fracture probability in PLWH. In case of indication for anti-osteoporotic drug, bisphosphonates remain the reference option. Calcium and vitamin D supplementation should be considered as ART initiation, since it may attenuate bone loss at this stage. Bone-protective ART regimens improve BMD compared to other regimens, but to a lesser extent than bisphosphonate, and without available data on their influence on the incidence of fracture.
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Affiliation(s)
- Emmanuel Biver
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, University of Geneva, 4 Rue Gabrielle Perret-Gentil, 1205, Geneva, Switzerland.
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7
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Weitzmann MN, Weiss D, Vikulina T, Roser-Page S, Yu K, McGee-Lawrence ME, Tu CL, Chang W, Ofotokun I. Immune Reconstitution Bone Loss Exacerbates Bone Degeneration Due to Natural Aging in a Mouse Model. J Infect Dis 2021; 226:38-48. [PMID: 34962571 PMCID: PMC9373144 DOI: 10.1093/infdis/jiab631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Immune reconstitution bone loss (IRBL) is a common side-effect of antiretroviral therapy (ART) in people living with HIV (PWH). IRBL acts through CD4 + T-cell/immune reconstitution-induced inflammation and is independent of antiviral regimen. IRBL may contribute to the high rate of bone fracture in PWH, a cause of significant morbidity and mortality. Although IRBL is transient, it remains unclear whether bone recovers, or is permanently denuded and further compounds bone loss associated with natural aging. METHODS We utilized a validated IRBL mouse model involving T-cell reconstitution of immunocompromised mice. Mice underwent cross-sectional bone phenotyping of femur and/or vertebrae between 6- and 20-months-of-age by micro-computed tomography (µCT) and quantitative bone histomorphometry. CD4 + T-cells were purified at 20 months to quantify osteoclastogenic/inflammatory cytokine expression. RESULTS While cortical IRBL in young animals recovered with time, trabecular bone loss was permanent, and exacerbated skeletal decline associated with natural aging. At 20-months-of-age, reconstituted CD4 + T-cells express enhanced osteoclastogenic cytokines including RANKL, IL-1β, IL-17A and TNFα, consistent with elevated osteoclast numbers. CONCLUSIONS IRBL in the trabecular compartment is permanent and further exacerbates bone loss due to natural aging. If validated in humans, interventions to limit IRBL may be important to prevent fractures in aging PWH.
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Affiliation(s)
- M Neale Weitzmann
- Atlanta Department of Veterans Affairs Medical Center, Decatur, Georgia, USA.,Division of Endocrinology & Metabolism & Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Daiana Weiss
- Division of Endocrinology & Metabolism & Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Tatyana Vikulina
- Atlanta Department of Veterans Affairs Medical Center, Decatur, Georgia, USA.,Division of Endocrinology & Metabolism & Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Susanne Roser-Page
- Atlanta Department of Veterans Affairs Medical Center, Decatur, Georgia, USA
| | - Kanglun Yu
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Meghan E McGee-Lawrence
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Department of Orthopaedic Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Chia-Ling Tu
- Endocrine Research Unit, San Francisco VA Healthcare System, University of California, San Francisco, CA, USA
| | - Wenhan Chang
- Endocrine Research Unit, San Francisco VA Healthcare System, University of California, San Francisco, CA, USA
| | - Ighovwerha Ofotokun
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA, and Grady Healthcare System, Atlanta, Georgia, USA
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8
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Katzenstein TL, Wessman M, Moseholm E, Sandholdt H, Hansen ABE, Lebech AM, Jørgensen NR, Weis N. Prevalence of low bone mineral density among people living with HIV. COGENT MEDICINE 2021. [DOI: 10.1080/2331205x.2021.1920667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Terese L. Katzenstein
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Maria Wessman
- Department of Infectious Diseases, Copenhagen University Hospital, Hvidovre Hospital, Copenhagen, Denmark
| | - Ellen Moseholm
- Department of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Glostrup, Copenhagen, Denmark
| | - Haakon Sandholdt
- Department of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Glostrup, Copenhagen, Denmark
| | - Ann-Brit E Hansen
- Department of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Glostrup, Copenhagen, Denmark
| | - Anne-Mette Lebech
- Department of Infectious Diseases, Copenhagen University Hospital, Hvidovre Hospital, Copenhagen, Denmark
| | - Niklas R Jørgensen
- Department of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Glostrup, Copenhagen, Denmark
| | - Nina Weis
- Department of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Glostrup, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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9
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Ofotokun I, Collins LF, Titanji K, Foster A, Moran CA, Sheth AN, Lahiri CD, Lennox JL, Ward L, Easley KA, Weitzmann MN. Antiretroviral Therapy-Induced Bone Loss Is Durably Suppressed by a Single Dose of Zoledronic Acid in Treatment-Naive Persons with Human Immunodeficiency Virus Infection: A Phase IIB Trial. Clin Infect Dis 2021; 71:1655-1663. [PMID: 31621838 DOI: 10.1093/cid/ciz1027] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/14/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV) infection and antiretroviral therapy (ART) are associated with bone loss leading to increased fracture rate among persons with HIV (PWH). We previously showed long-acting antiresorptive zoledronic acid (ZOL) prevented ART-induced bone loss through 48 weeks of therapy and here investigate whether protection persisted. METHODS We randomized 63 nonosteoporotic, treatment-naive adult PWH initiating ART to ZOL (5 mg) versus placebo in a double-blinded, placebo-controlled, phase IIb trial. Here we analyzed the long-term outcome data (144 weeks). Plasma bone turnover markers and bone mineral density (BMD) were quantified at weeks 0, 12, 24, 48, 96, and 144. Primary outcome was change in bone resorption marker C-terminal telopeptide of collagen (CTx). Repeated-measures analyses using mixed linear models were used to estimate and compare study endpoints. RESULTS At 96 weeks, mean CTx was 62% lower with ZOL relative to placebo (n = 46; CTx = 0.123 vs 0.324 ng/mL; P < .001); at 144 weeks a 25% difference between arms was not statistically significant. At 48 weeks, lumbar spine BMD with ZOL was 11% higher than placebo (n = 60; P < .001) and remained 9-11% higher at 96 (n = 46) and 144 (n = 41; P < .001) weeks. 144 weeks after ZOL infusion, BMD did not change at the lumbar spine (P = .22) but declined at the hip (P = .04) and femoral neck (P = .02). CONCLUSIONS A single dose of ZOL administered at ART initiation blunts bone resorption and BMD loss at key fracture-prone anatomical sites in treatment-naive PWH for 3 years. A multicenter randomized phase III clinical trial validating these results in a larger population is needed. CLINICAL TRIALS REGISTRATION NCT01228318.
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Affiliation(s)
- Ighovwerha Ofotokun
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.,Grady Health System, Atlanta, Georgia, USA
| | - Lauren F Collins
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.,Grady Health System, Atlanta, Georgia, USA
| | - Kehmia Titanji
- Division of Endocrinology and Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Antonina Foster
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Caitlin A Moran
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.,Grady Health System, Atlanta, Georgia, USA
| | - Anandi N Sheth
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.,Grady Health System, Atlanta, Georgia, USA
| | - Cecile D Lahiri
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.,Grady Health System, Atlanta, Georgia, USA
| | - Jeffrey L Lennox
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.,Grady Health System, Atlanta, Georgia, USA
| | - Laura Ward
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Kirk A Easley
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - M Neale Weitzmann
- Division of Endocrinology and Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.,Atlanta Department of Veterans Affairs Medical Center, Decatur, Georgia, USA
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10
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Kohli J, Veenstra I, Demaria M. The struggle of a good friend getting old: cellular senescence in viral responses and therapy. EMBO Rep 2021; 22:e52243. [PMID: 33734564 PMCID: PMC8024996 DOI: 10.15252/embr.202052243] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/11/2021] [Accepted: 03/01/2021] [Indexed: 12/15/2022] Open
Abstract
Cellular senescence is a state of stable cell cycle arrest associated with macromolecular alterations and secretion of pro-inflammatory cytokines and molecules. Senescence-associated phenotypes restrict damage propagation and activate immune responses, two essential processes involved in response to viral infections. However, excessive accumulation and persistence of senescent cells can become detrimental and promote pathology and dysfunctions. Various pharmacological interventions, including antiviral therapies, lead to aberrant and premature senescence. Here, we review the molecular mechanisms by which viral infections and antiviral therapy induce senescence. We highlight the importance of these processes in attenuating viral dissemination and damage propagation, but also how prematurely induced senescent cells can promote detrimental adverse effects in humans. We describe which sequelae due to viral infections and treatment can be partly due to excessive and aberrant senescence. Finally, we propose that pharmacological strategies which eliminate senescent cells or suppress their secretory phenotype could mitigate side effects and alleviate the onset of additional morbidities. These strategies can become extremely beneficial in patients recovering from viral infections or undergoing antiviral therapy.
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Affiliation(s)
- Jaskaren Kohli
- European Research Institute for the Biology of Ageing (ERIBA)University Medical Center Groningen (UMCG)GroningenThe Netherlands
| | - Iris Veenstra
- European Research Institute for the Biology of Ageing (ERIBA)University Medical Center Groningen (UMCG)GroningenThe Netherlands
| | - Marco Demaria
- European Research Institute for the Biology of Ageing (ERIBA)University Medical Center Groningen (UMCG)GroningenThe Netherlands
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11
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McGee S, Alzahrani M, Vandermeer L, Cole K, Larocque G, Awan A, Hutton B, Pond G, Saunders D, Clemons M. Adjuvant bisphosphonate use in patients with early stage breast cancer: a physician survey. Breast Cancer Res Treat 2021; 187:477-486. [PMID: 33755864 PMCID: PMC7985746 DOI: 10.1007/s10549-021-06147-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/12/2021] [Indexed: 11/28/2022]
Abstract
Purpose Despite the increasing use of adjuvant bone-modifying agents (BMAs) such as zoledronate and clodronate in the treatment of patients with early stage breast cancer (EBC), little is known about real world practice patterns. A physician survey was performed to address this deficit and determine interest in clinical trials of alternative strategies for BMA administration. Methods Canadian oncologists treating patients with EBC were surveyed via an anonymized online survey. The survey collected information on: physician demographics, knowledge and interpretation of adjuvant bisphosphonate guidelines, and real world prescribing practices. Questions also determined thoughts around the design of future adjuvant BMA trials. Results Of 127 surveyed physicians, 53 eligible invitees responded (response rate 42%). The majority of physicians are offering high-risk postmenopausal patients adjuvant BMAs. The most common BMA regimen was adjuvant zoledronate (45/53, 85%) every 6 months for 3 years. Concerns around toxicities and repeated visits to the cancer centre were perceived as the greatest barriers to adjuvant bisphosphonate use. Respondents were interested in future trials of de-escalation of BMAs comparing a single infusion of zoledronate vs. 6-monthly zoledronate for 3 years. The most favoured primary endpoints for such a trial included disease recurrence and fragility fracture rates. Conclusion Questions around optimal use of adjuvant bisphosphonates in patients with EBC still exist. There is interest among physicians in performing trials of de-escalation of these agents. The results of this survey will assist in designing pragmatic clinical trials to address this question. Supplementary Information The online version contains supplementary material available at 10.1007/s10549-021-06147-1.
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Affiliation(s)
- Sharon McGee
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, 501 Smyth Road, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research, and University of Ottawa, Ottawa, Canada
| | - Mashari Alzahrani
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, 501 Smyth Road, Ottawa, Canada
| | - Lisa Vandermeer
- Cancer Therapeutics Program, Ottawa Hospital Research, and University of Ottawa, Ottawa, Canada
| | - Katherine Cole
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, 501 Smyth Road, Ottawa, Canada
| | - Gail Larocque
- The Ottawa Hospital Cancer Program, The Ottawa Hospital, Ottawa, Canada
| | - Arif Awan
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, 501 Smyth Road, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research, and University of Ottawa, Ottawa, Canada
| | - Brian Hutton
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute and University of Ottawa, Ottawa, Canada
| | - Gregory Pond
- Department of Oncology, Juravinski Cancer Centre and McMaster University, Hamilton, Canada
| | - Deanna Saunders
- Cancer Therapeutics Program, Ottawa Hospital Research, and University of Ottawa, Ottawa, Canada
| | - Mark Clemons
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, 501 Smyth Road, Ottawa, Canada. .,Cancer Therapeutics Program, Ottawa Hospital Research, and University of Ottawa, Ottawa, Canada.
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12
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Nguyen A, Rinaldi S, Martinez C, Perkins M, Holstad MM. "HIV and Aging in Special Populations: From the Mitochondria to the Metropolis"-Proceedings From the 2019 Conference. J Assoc Nurses AIDS Care 2021; 32:214-221. [PMID: 33449580 PMCID: PMC9272905 DOI: 10.1097/jnc.0000000000000236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Annie Nguyen
- Department of Family Medicine, Keck School of Medicine, University of Southern California, San Diego, California, USA
| | - Stefano Rinaldi
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Claudia Martinez
- Clinical Medicine, Department of Medicine, Division of Cardiology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Molly Perkins
- Associate Professor, Emory University School of Medicine; a Member of the Graduate Faculty, Emory Department of Sociology and the Atlanta Site Lead (joint appointment with the Atlanta VA Medical Center), Birmingham/Atlanta Geriatric Research, Education, and Clinical Center (GRECC); and Co-chair, Scientific Working Group on HIV and Aging, Center for AIDS Research at Emory University, Atlanta, Georgia, USA
| | - Marcia McDonnell Holstad
- Research Professor, Professor Emerita, and Marcia Stanhope Professor in Public Health, Nell Hodgson Woodruff School of Nursing; and Co-chair, Scientific Working Group on HIV and Aging, Center for AIDS Research at Emory University, Atlanta, Georgia, USA
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13
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McGee S, AlZahrani M, Stober C, Ng TL, Cole K, Larocque G, Awan A, Sehdev S, Hilton J, Vandermeer L, Hutton B, Pond G, Saunders D, Clemons M. Adjuvant bisphosphonate use in patients with early stage breast cancer: Patient perspectives on treatment acceptability and potential de-escalation. J Bone Oncol 2021; 27:100351. [PMID: 33680749 PMCID: PMC7930351 DOI: 10.1016/j.jbo.2021.100351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/14/2021] [Accepted: 01/14/2021] [Indexed: 11/30/2022] Open
Abstract
Background Despite the increasing use of adjuvant bisphosphonates for early stage breast cancer (EBC), little is known about the patient experience with such treatments. A patient survey was performed to identify current prescribing practices, perceptions around the role of treatment, the impact of treatment on patients' quality of life, and future trial designs. Methods EBC patients who had either completed or were currently receiving adjuvant bisphosphonates were sent an anonymized survey. The survey collected information on patient and disease characteristics, bisphosphonate scheduling, compliance, and tolerance. Questions also assessed patient interest in trials of de-escalated bisphosphonate therapy. Results A total of 255 patients were contacted, with 164 eligible respondents (eligible response rate 164/255, 64.3%). Median patient age was 52 years (range 28 to 82 years). The majority (111/163, 68.1%) were postmenopausal at the time of diagnosis, 23.3% (38/163) were premenopausal, and 7.4% (12/163) were perimenopausal. Most patients (78%) had received chemotherapy. Zoledronate was the most commonly used bisphosphonate (92%), with the majority receiving treatment every 6 months for 3 years (73%). While 66% (107/161) of respondents had experienced side effects with treatment, most had, or expected to, complete treatment (154/163, 94%). Provided there was no detriment in breast cancer outcomes, there was strong interest in future studies of de-escalating adjuvant bisphosphonate therapy. Conclusion While most patients tolerate their treatment, there is interest in performing trials of de-escalation of these agents.
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Affiliation(s)
- Sharon McGee
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Mashari AlZahrani
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada
| | - Carol Stober
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Terry L Ng
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Katherine Cole
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada
| | - Gail Larocque
- The Ottawa Hospital Cancer Program, The Ottawa Hospital, Ottawa, Canada
| | - Arif Awan
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Sandeep Sehdev
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - John Hilton
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Lisa Vandermeer
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Brian Hutton
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute and University of Ottawa, Ottawa, Canada
| | - Gregory Pond
- Department of Oncology, Juravinski Cancer Centre and McMaster University, Hamilton, Canada
| | - Deanna Saunders
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Mark Clemons
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and the University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
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14
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Guo F, Song X, Li Y, Guan W, Pan W, Yu W, Li T, Hsieh E. Longitudinal change in bone mineral density among Chinese individuals with HIV after initiation of antiretroviral therapy. Osteoporos Int 2021; 32:321-332. [PMID: 32803316 PMCID: PMC9509525 DOI: 10.1007/s00198-020-05584-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 08/03/2020] [Indexed: 01/05/2023]
Abstract
UNLABELLED This is the first study to report changes in BMD and related risk factors among Chinese patients with HIV after initiation of tenofovir disoproxil fumarate (TDF)-containing antiretroviral therapy. Greater bone mineral density (BMD) loss was observed in patients treated with TDF, compared to those on non-TDF-containing regimens. Our findings provide important knowledge regarding the risk factors in the long-term clinical management of patients with HIV in China. INTRODUCTION Persons living with HIV (PLWH) are at increased risk for osteoporosis and fracture. Tenofovir disoproxil fumarate (TDF) has been associated with higher rates of bone mineral density (BMD) loss, osteoporosis, and fracture. Few studies have studied the impact among PLWH in Asia. METHODS We analyzed retrospectively patients from the outpatient HIV clinic of a large tertiary hospital in Beijing, China, from March 2007 to May 2016. Patients who had dual-energy X-ray absorptiometry testing prior to antiretroviral initiation and at 48 and/or 96 weeks after initiation were included in this analysis. RESULTS A total of 136 patients were included (mean age 36.0 ± 10.6 years) and over 90% participants were male and Han Chinese ethnicity. We observed greater declines in BMD at the spine from baseline to week 48 (-2.94% vs. -0.74%) and at the hip from baseline to week 96 (-4.37% vs. -2.34%) in the TDF group compared with the non-TDF group. With regard to HIV-specific parameters, longer duration since HIV diagnosis and undetectable viral load over time were associated with lower BMD at the hip [relative risk (RR) 0.97, 95% confidence index (CI) (0.95, 0.99) per 1 year increase and RR 0.96, 95%CI (0.94, 0.99), respectively] and femoral neck [RR 0.97, 95%CI (0.95, 0.99) per 1 year increase and RR 0.97, 95%CI (0.95, 0.998), respectively] over 96 weeks. CONCLUSIONS This is the first study to report changes in BMD among PLWH after initiation of TDF-based antiretroviral therapy in China. Our findings provide important knowledge for the long-term clinical management of PLWH from this region.
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Affiliation(s)
- F Guo
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China
| | - X Song
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China
| | - Y Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China
| | - W Guan
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - W Pan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China
| | - W Yu
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - T Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China.
- Center for AIDS Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - E Hsieh
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China.
- Section of Rheumatology, Allergy, and Clinical Immunology, Yale School of Medicine, 300 Cedar Street, TAC S-525, PO Box 208031, New Haven, CT, 06517, USA.
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15
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Awan A, Ng T, Conter H, Raskin W, Stober C, Simos D, Pond G, Dhesy-Thind S, Mates M, Kumar V, Fergusson D, Hutton B, Saunders D, Vandermeer L, Clemons M. Feasibility outcomes of a randomised, multicentre, pilot trial comparing standard 6-monthly dosing of adjuvant zoledronate with a single one-time dose in patients with early stage breast cancer. J Bone Oncol 2020; 26:100343. [PMID: 33425673 PMCID: PMC7782555 DOI: 10.1016/j.jbo.2020.100343] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 12/24/2022] Open
Abstract
Adjuvant bisphosphonates are an established standard in postmenopausal breast cancer. Guidelines note the need to explore different agents, doses, and intervals of bisphosphonates. Feasibility of randomizing to 6-monthly vs one dose of IV zoledronate was demonstrated.
Background Adjuvant zoledronate is widely used in patients with early stage breast cancer (EBC), but its optimal duration and dosing interval is still unknown. While a single-dose of zoledronate can improve bone density for many years, a proper evaluation of its effects on breast cancer-related outcomes would require a large trial. In this pilot study we evaluated the feasibility of performing such a trial. Methods Eligible patients with EBC were randomised to receive either one dose of zoledronate or 7 doses (6-monthly dosing for 3 years). Feasibility was assessed by a combination of primary outcomes including: activation of at least 6 Ontario sites within a year, active participation (i.e. approaching eligible patients for study participation) of at least half of the medical oncologists, and enrolment of at least 100 patients across all sites within 9 months of the sixth site being activated. Results All 6 sites were activated within 1 year and of 47 medical oncologists, 27 (57%) approached patients. Between November 2018 and April 2020, 211 eligible patients were randomised, 106 (50.2%) to a single dose of zoledronate and 105 (49.8%) to 6-monthly dosing. Baseline characteristics of randomised patients included; median age 59 (range 36–88), ER and/or PR positive (85%), Her2 positive (23%), menopausal status (premenopausal [19%], perimenopausal [6.7%] and postmenopausal [74%]) and 74% received neo/adjuvant chemotherapy. Conclusions All study feasibility endpoints were met in this trial comparing alternative schedules for adjuvant zoledronate. We will now seek funding for performing a larger efficacy trial. Trial registration: NCT03664687.
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Affiliation(s)
- Arif Awan
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Terry Ng
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Henry Conter
- William Osler Cancer Centre and Department of Oncology, University of Western Ontario, Brampton, Canada
| | - William Raskin
- William Osler Cancer Centre and Department of Oncology, University of Western Ontario, Brampton, Canada
| | - Carol Stober
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | | | - Greg Pond
- Department of Oncology, Juravinski Hospital and Cancer Centre and McMaster University, Hamilton, Canada
| | - Sukhbinder Dhesy-Thind
- Department of Oncology, Juravinski Hospital and Cancer Centre and McMaster University, Hamilton, Canada
| | - Mihaela Mates
- Cancer Centre of Southeastern Ontario, Kingston, Canada
| | - Vikaash Kumar
- Markham Stouffville Hospital, Shakir Rehmatullah Cancer Clinic, Markham, Canada
| | - Dean Fergusson
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute and University of Ottawa, Ottawa, Canada
| | - Brian Hutton
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute and University of Ottawa, Ottawa, Canada
| | - Deanna Saunders
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Lisa Vandermeer
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Mark Clemons
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and University of Ottawa, Ottawa, Canada.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, Canada
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16
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Oster Y, Cohen MJ, Dresner-Pollak R, Szalat A, Elinav H. Increase in bone turnover markers in HIV patients treated with tenofovir disoproxil fumarate combined with raltegravir or efavirenz. Bone Rep 2020; 13:100727. [PMID: 33163587 PMCID: PMC7607241 DOI: 10.1016/j.bonr.2020.100727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 09/30/2020] [Accepted: 10/12/2020] [Indexed: 12/02/2022] Open
Abstract
Introduction Accelerated bone loss and osteoporosis are multifactorial comorbidities related to HIV and its treatments; however, their mechanisms remain elusive. Identifying HIV treatments that are differentially linked to osteoporosis risk, and clinical factors associated with HIV-related osteoporosis may enable optimizing anti-retroviral treatment (ART) and anti-osteoporosis therapy in preventing or treating this debilitating complication. This study aims to evaluate the dynamics of bone turnover markers after initiation of two commonly used antiretroviral regimens. Methods A prospective matched cohort study. Thirty treatment-naïve male patients (mean age 40 ± 10y) who initiated treatment with truvada (tenofovir disoproxil fumarate (TDF)/emtricitabine (FTC)) + raltegravir or TDF/FTC + efavirenz were included in the study. Control group included 15 treatment-naive HIV patients. Serum morning fasting level of P1NP and CTX were measured 0, 1, 6, and 12 months after treatment initiation in the two study groups, and at 0, 6 and 12 months in the control group. Results In both treatment groups, but not in the control group, both markers increased significantly over time with no difference in BTM between patients treated with raltegravir or efavirenz. Levels of P1NP were statistically higher at 6 and 12 months after treatment initiation in both treatment groups compared to the controls, while CTX during treatment increased in both treatment groups but was significantly higher only in the raltegravir treatment group after 12 months. The ratio of area under the curve of P1NP/CTX correlated with CD4 increment. Conclusions Treatment initiation with raltegravir or efavirenz combined with TDF/FTC is associated with increased bone turnover. Thus, therapy that optimize bone turnover is needed to reduce bone loss at this vulnerable period and improve long-term bone health.
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Affiliation(s)
- Yonatan Oster
- Hadassah AIDS Center, Department of Clinical Microbiology and Infectious Diseases, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Matan J Cohen
- Clalit Health Services, Jerusalem District, affiliated with the School of Medicine, Hebrew University, Jerusalem, Israel
| | - Rivka Dresner-Pollak
- The Department of Endocrinology and Metabolism, Division of Internal Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Auryan Szalat
- Department of Medicine, Endocrinology and Metabolism Service, Hadassah Hebrew, University Medical Center, Jerusalem, Israel
| | - Hila Elinav
- Hadassah AIDS Center, Department of Clinical Microbiology and Infectious Diseases, Hadassah Hebrew University Medical Center, Jerusalem, Israel
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17
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Rocha VMD, Faria MBB, Júnior FDADR, Lima COGX, Fiorelli RKA, Cassiano KM. Use of Bisphosphonates, Calcium and Vitamin D for Bone Demineralization in Patients with Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome: A Systematic Review and Meta-Analysis of Clinical Trials. J Bone Metab 2020; 27:175-186. [PMID: 32911582 PMCID: PMC7571242 DOI: 10.11005/jbm.2020.27.3.175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 07/08/2020] [Indexed: 12/15/2022] Open
Abstract
Background The present study performed a systematic review and meta-analysis of clinical trials using bisphosphonates for bone demineralization in human immunodeficiency virus (HIV) patients. Methods A comprehensive literature search was performed from January 2004 to January 2020 considering the bone mineral density (BMD) of the lumbar spine (LS) as the main outcome. Out of 214 titles that met criteria, 9 studies fulfilled the selection criteria. Results A total of 394 patients were identified, and they were allocated into 2 groups: the intervention group (200 patients), to whom a combination of alendronate or zoledronate with calcium and vitamin D was administered; and control group (194 patients), to whom only calcium and vitamin D was administered. Clinical profile and indicators of bone metabolism of the participants were evaluated regarding effect size, homogeneity, and consistency. No substantial heterogeneity between the groups was found for the baseline variables, and there was high consistency to the main outcome. The meta-analysis shows a significant difference in post-treatment BMD, favoring the intervention over the control treatment. The intervention improved LS density up to 0.227 g/cm², raising the average to the levels of general population. Adverse effects related to intervention were fever immediately after zoledronate administration and gastrointestinal complaints during alendronate usage. Other adverse effects were barely reported and poorly connected to intervention by studies’ authors, despite all of them have been successfully resolved. Conclusions This study provides evidence that BMD post-treatment is better in HIV patients who used bisphosphonates combined with calcium and vitamin D.
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Affiliation(s)
- Vinícius Magno da Rocha
- Department of General and Specialized Surgery, Medical School, Federal University of the State of Rio de Janeiro, RJ, Brazil.,Department of Orthopedics and Traumatology, Gaffrée and Guinle University Hospital, RJ, Brazil
| | | | | | | | - Rossano Kepler Alvim Fiorelli
- Department of General and Specialized Surgery, Medical School, Federal University of the State of Rio de Janeiro, RJ, Brazil
| | - Keila Mara Cassiano
- Department of Statistics, Institute of Mathematics, Federal Fluminense University, RJ, Brazil
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Immature/transitional B-cell expansion is associated with bone loss in HIV-infected individuals with severe CD4+ T-cell lymphopenia. AIDS 2020; 34:1475-1483. [PMID: 32675561 DOI: 10.1097/qad.0000000000002563] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Antiretroviral therapy (ART) has led to a significant decline in HIV-related morbidity and mortality in people living with HIV (PLWH). PLWH however experience non-AIDS ageing-associated comorbidities, including decreased bone mass and osteoporosis, earlier and more severely, than uninfected people. We previously reported that total B-cell production of the key osteoclastogenic cytokine receptor activator of NF-κB ligand (RANKL) was elevated in PLWH, concurrent with a decrease in total B-cell production of RANKL's physiological moderator Osteoprotegerin (OPG). The resulting increased total B-cell RANKL/OPG ratio was significantly associated with bone loss in the appendicular (long bones), but not axial (spine) skeletons of PLWH. A role for immature/transitional B cells (BImm) in HIV-induced bone loss has not been reported. METHODS BImm frequency was determined by flow cytometry; plasma IL-7 was quantified by ELISA and bone mineral density (BMD) measured by dual X-ray absorptiometry (DXA) in a cross-sectional study of 62 ART-naive HIV-infected and 58 HIV-negative individuals. RESULTS BImm expansion correlated with the total B-cell RANKL/OPG ratio in HIV-infected individuals and inversely with BMD at the total hip, femoral neck and the lumbar spine, and with IL-7. CONCLUSION These data suggest that BImm contribute to the increased B-cell RANKL/OPG ratio in PLWH, and reveal a previously unrecognized link between BImm expansion and HIV-induced bone loss in the axial and appendicular skeletons of severely immunocompromised HIV-infected individuals. BImm expansion may be a novel biomarker for screening patients at risk of osteoporosis.
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Management of Osteoporosis in Patients Living With HIV-A Systematic Review and Meta-analysis. J Acquir Immune Defic Syndr 2020; 83:1-8. [PMID: 31809356 DOI: 10.1097/qai.0000000000002207] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Osteoporosis is reported as a common comorbidity in patients living with HIV (PLHIV). The aim of this systematic review and meta-analysis is to assess the evidence on fracture risk in PLHIV, bone mineral density (BMD) in PLHIV compared with controls, longitudinal changes in BMD in PLHIV, and effect of antiosteoporosis treatment in PLHIV. METHODS A systematic literature search was conducted using the databases Medline at PubMed and EMBASE using the search terms: "HIV" and "fracture" or "bone turnover," or "bone mineral density." Eligibility criteria followed the aim of the study and include randomized controlled trials and observational studies. Two reviewers extracted the data independently. Meta-analysis was performed using random-effects model assessing fracture risk, BMD compared with controls, and changes in BMD. RESULTS One hundred forty-two of 2397 papers identified were included in the systematic review, and subsequently, 84 were included in the meta-analysis. The risks of a fragility fracture [1.51, 95% confidence interval (CI): 1.41 to 1.63] and hip fracture (4.05, 95% CI: 2.99 to 5.49) were increased. PLHIV have lower BMD at the hip (z-score -0.31, 95% CI: -0.46 to -0.27) and lumbar spine (z-score -0.36, 95% CI: -0.39 to -0.15) compared with controls. The reduced BMD did not fully explain the increased fracture risk in PLHIV. CONCLUSIONS Current management of osteoporosis in PLHIV follows general osteoporosis guidelines; however, the increased fracture risk is not fully explained by lower BMD, and thus, antiosteoporosis intervention may be beneficial at a higher BMD in PLHIV.
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20
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Shiau S, Arpadi SM, Yin MT. Bone Update: Is It Still an Issue Without Tenofovir Disoproxil Fumarate? Curr HIV/AIDS Rep 2020; 17:1-5. [PMID: 31953646 DOI: 10.1007/s11904-019-00474-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
PURPOSE OF REVIEW In the era of modern bone-friendly antiretroviral therapy (ART) regimens for people living with HIV (PLWH), this review discusses the research gaps and management concerns that remain for individuals who have already been exposed to ART with negative effects on bone metabolism, especially children and adolescents who have not acquired peak bone mass, and older adults who have additional risk factors for fracture. RECENT FINDINGS Data now support the use of avoidance of TDF and use of bone-friendly regimens that include integrase strand transfer inhibitors in PLWH with increased risk of fracture for either ART initiation or switch. Despite significant advances in our understanding of ART choice for PLWH with regard to bone health, additional diagnostic tests to determine fracture risk and management strategies beyond ART choice are necessary, especially in vulnerable PLWH populations, such as children and adolescents and older adults.
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Affiliation(s)
- Stephanie Shiau
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Stephen M Arpadi
- G.H. Sergievsky Center and Department of Pediatrics, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, 622 West 168th Street, New York, NY, 10032, USA
| | - Michael T Yin
- Division of Infectious Diseases, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, 622 West 168th Street, New York, NY, 10032, USA.
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21
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Tan DHS, Lee T, Raboud J, Qamar A, Cheung AM, Walmsley S. Alendronate/Vitamin D for attenuating bone mineral density loss during antiretroviral initiation: a pilot randomized controlled trial. HIV Res Clin Pract 2020; 20:140-150. [PMID: 32106792 DOI: 10.1080/25787489.2020.1730114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Background: Antiretroviral therapy (ART) initiation is associated with decreases in bone mineral density (BMD).Objectives: To plan for a larger trial, we sought to obtain preliminary estimates for the difference in the change in BMD at 48 weeks achieved with 24 weeks of prophylactic alendronate/vitamin D during ART initiation compared to no intervention, the within-group standard deviation of this change, and intra-patient correlation coefficient for repeated BMDs. Secondary objectives included assessing enrollment feasibility, treatment acceptability, adherence and safety.Methods: We randomized treatment-naïve HIV-positive adults initiating tenofovir disoproxil fumarate/emtricitabine/elvitegravir/cobicistat or abacavir/lamivudine/dolutegravir 1:1:1 to immediate alendronate/vitamin D3 70 mg/5600 IU for 24 weeks (concomitant treatment arm, CTA), the same intervention starting 24 weeks after study entry (delayed treatment arm, DTA), or no bone anti-resorptive therapy (standard of care, SOC). We assessed BMD, acceptability, adverse events and drug adherence at baseline, week 24 and week 48.Results: Of 29 included participants, 72% initiated TDF/FTC/ELV/c and 28% initiated ABC/3TC/DTG. Median (IQR) CD4 count was 388 (303,525) cells/mm3 and median plasma HIV RNA was 4.45 (2.26, 4.84) log10 copies/mL. The mean (SD) percentage change in BMD for the CTA and DTA combined was 1.95% (2.53%), 0.38% (3.34%), and -0.57% (3.50%) at the lumbar spine, femoral neck and total hip respectively at 48 weeks. The ICC among repeated measurements of BMD was 0.978, 0.964, and 0.967 at these sites, respectively. Enrollment feasibility, drug acceptability, adherence, and tolerability were good.Conclusions: Our findings inform the sample size for a larger trial of bone anti-resorptive therapy during ART initiation and support feasibility.
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Affiliation(s)
- Darrell H S Tan
- Division of Infectious Diseases, St. Michael's Hospital, Toronto, Ontario, Canada.,MAP Centre for Urban Health Solutions, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Division of Infectious Diseases, Toronto General Hospital, Toronto, Ontario, Canada.,Toronto General Hospital Research Institute, Toronto, Ontario, Canada
| | - Terry Lee
- CIHR Canadian HIV Trials Network, Vancouver, British Columbia, Canada
| | - Janet Raboud
- Toronto General Hospital Research Institute, Toronto, Ontario, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Attia Qamar
- MAP Centre for Urban Health Solutions, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Angela M Cheung
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto General Hospital Research Institute, Toronto, Ontario, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Centre for Excellence in Skeletal Health Assessment, Toronto General Hospital, Toronto, Ontario, Canada
| | - Sharon Walmsley
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Division of Infectious Diseases, Toronto General Hospital, Toronto, Ontario, Canada.,Toronto General Hospital Research Institute, Toronto, Ontario, Canada
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22
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Biver E, Calmy A, Aubry-Rozier B, Birkhäuser M, Bischoff-Ferrari HA, Ferrari S, Frey D, Kressig RW, Lamy O, Lippuner K, Suhm N, Meier C. Diagnosis, prevention, and treatment of bone fragility in people living with HIV: a position statement from the Swiss Association against Osteoporosis. Osteoporos Int 2019; 30:1125-1135. [PMID: 30603840 DOI: 10.1007/s00198-018-4794-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 11/29/2018] [Indexed: 12/20/2022]
Abstract
Life expectancy of people living with HIV (PLWH) is reaching similar length as in the general population. Accordingly, age-related comorbidities, including osteoporosis, are increasing. Fracture risk is higher and increases approximately 10 years earlier in PLWH. Classical risk factors of bone fragility are highly prevalent in PLWH but factors specific for HIV infection itself and the type of antiretroviral therapy (ART) (triple combination antiretroviral therapy) regimen (especially tenofovir and protease inhibitors) also contribute to bone loss. The majority of bone loss occurs during virus activity and at initiation of ART (immune reconstitution) and is associated with an increase of bone resorption (upregulation RANKL). Recent data indicate that calcium and vitamin D supplements as ART initiation lower BMD loss. The reduction of tenofovir plasma concentrations with tenofovir alafenamide attenuates BMD loss but it remains unknown whether it will contribute to reduce fracture risk. Hence, special considerations for the management of bone fragility in PLWH are warranted. Based on the current state of epidemiology and pathophysiology of osteoporosis in PLWH, we provide the consensus of the Swiss Association against Osteoporosis on best practice for diagnosis, prevention, and management of osteoporosis in this population. Periodic assessment of fracture risk is indicated in all HIV patients and general preventive measures should be implemented. All postmenopausal women, men above 50 years of age, and patients with other clinical risk for fragility fractures qualify for BMD measurement. An algorithm clarifies when treatment with bisphosphonates and review of ART regimen in favour of more bone-friendly options are indicated.
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Affiliation(s)
- E Biver
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - A Calmy
- HIV/Aids Unit, Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - B Aubry-Rozier
- Center of Bone Diseases, Lausanne University Hospital, Lausanne, Switzerland
| | - M Birkhäuser
- Gynecological Endocrinology and Reproductive Medicine, University of Berne, Basel, Switzerland
| | - H A Bischoff-Ferrari
- Department of Geriatrics and Aging Research, University of Zurich and University Hospital of Zurich, Zurich, Switzerland
| | - S Ferrari
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - D Frey
- Division of Rheumatology, University Hospital Zürich, Zürich, Switzerland
| | - R W Kressig
- University Center for Medicine of Aging, Basel Mobility Center, University of Basel, Basel, Switzerland
| | - O Lamy
- Center of Bone Diseases, Lausanne University Hospital, Lausanne, Switzerland
| | - K Lippuner
- Department of Osteoporosis, University Hospital, University of Berne, Berne, Switzerland
| | - N Suhm
- Department of Orthopedics and Traumatology, Geriatric Fracture Center, University Hospital Basel, Basel, Switzerland
| | - C Meier
- Division of Endocrinology, Diabetology & Metabolism, University Hospital and University of Basel, Missionsstrasse 24, CH-4055, Basel, Switzerland.
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23
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Ceballos ME, Carvajal C, Jaramillo J, Dominguez A, González G. Vitamin D and Bone Mineral Density in HIV Newly Diagnosed Therapy-Naive Patients Without Any Secondary Causes of Osteoporosis. Calcif Tissue Int 2019; 104:42-49. [PMID: 30209528 DOI: 10.1007/s00223-018-0474-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 09/04/2018] [Indexed: 01/08/2023]
Abstract
Bone loss and vitamin D deficiency are common in HIV patients. However, bone health status in newly diagnosed HIV patients has not been thoroughly described. Our aim was to assess the bone mineral density (BMD), bone resorption and vitamin D status in newly diagnosed HIV patients. A prospective observational study in HIV newly diagnosed therapy-naive persons. Patients with secondary causes of osteoporosis were excluded. Bone densitometry (DXA), a bone resorption marker (CTx), 25-hydroxyvitamin D (25OHD), CD4 count and HIV viral load (VL) were done in 70 patients. Vitamin D results were compared with a group of healthy volunteers. All patients were men, mean age 31 years (19-50). Low BMD (Z score ≤ 2.0) was found in 13%, all of them in lumbar spine, and in only one patient also in femoral neck. Bone resorption was high in 16%. One out of four participants had low BMD or high bone resorption. Vitamin D deficiency (25OHD < 20 ng/mL) was found in 66%. Mean 25OHD in patients was significantly lower than in healthy volunteers (p = 0.04). No associations were found between BMD, CTx, 25OHD and VL or CD4 count. We hypothesize that HIV infection negatively affects bone health based on the results we found among newly diagnosed, therapy-naive, HIV-infected patients, without any known secondary causes of osteoporosis. Low BMD or high bone resorption, are significantly prevalent in these patients. HIV-infected patients had a higher prevalence of vitamin D deficiency than controls, which was not correlated with CD4 count or VL.
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Affiliation(s)
- María Elena Ceballos
- Department of Infectious Diseases, Faculty of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Camila Carvajal
- Department of Infectious Diseases, Faculty of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Javier Jaramillo
- Department of Endocrinology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Angelica Dominguez
- Department of Public Health, Faculty of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Gilberto González
- Department of Endocrinology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile.
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24
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Kalayjian RC, Albert JM, Cremers S, Gupta SK, McComsey GA, Klingman KL, Fichtenbaum CJ, Brown TT, Taiwo BO. Women have enhanced bone loss associated with phosphaturia and CD4+ cell restoration during initial antiretroviral therapy. AIDS 2018; 32:2517-2524. [PMID: 30134291 PMCID: PMC6230267 DOI: 10.1097/qad.0000000000001995] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We compared bone mineral density (BMD) changes and their correlates, between men and women participating in two randomized trials of initial [antiretroviral therapy (ART)] regimens, with or without tenofovir disoproxil fumarate (TDF). METHODS Covariates in linear regression models of 48-week hip and spine %BMD changes, by dual energy X-ray absorptiometry, included baseline and 48-week changes in plasma viral load, CD4 cells, plasma C-terminal telopeptide, procollagen 1 N-terminal propeptide and glomerular filtration rates, and the 48-week area under the curve of fractional excretion of phosphate. RESULTS Despite overall hip and spine BMD declines of 2.8 and 2.9%, respectively, plasma viral load suppression to less than 50 vs. at least 50 copies/ml was associated 1.0% (P = 0.02) and 0.8% (P = 0.01) less BMD decline. Women had lower baseline spine (P = 0.04; n = 59 women, 418 men) and hip BMD (P = 0.01) in adjusted models, with 1.7% more hip decline on ART than men (P = 0.001). Serum phosphate was positively associated with baseline spine BMD in women (P = 0.03) but not men, and area under the curve of fractional excretion of phosphate was negatively associated with spine BMD changes, particularly in women randomized to TDF regimens (P = 0.03 and 0.054 for interactions by sex, and randomization to TDF vs. non-TDF regimens, respectively; n = 44 women, 326 men). Women also had 0.6% (P = 0.004) more hip BMD decline than men associated with each 100 CD4 cells/μl increase on ART (P = 0.02; n = 49 women, 379 men). CONCLUSION Women randomized to TDF-containing ART had accentuated spine loss associated with phosphaturia, and accentuated hip loss associated with CD4 restoration, regardless of TDF exposure. Viral load suppression reduced bone loss.
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Affiliation(s)
- Robert C. Kalayjian
- Department of Medicine, MetroHealth Medical Center, Cleveland, Ohio
- Geriatric Research Education and Clinical Center, Louis Stokes, Cleveland Veterans Administration Medical Center, Cleveland, Ohio
| | - Jeffrey M. Albert
- Department of Population and Quantitative Health Sciences, Case Western, Reserve University School of Medicine, Cleveland, Ohio
| | - Serge Cremers
- Department of Pathology and Cell Biology, Columbia University, College of Physicians and Surgeons, New York, New York
| | - Samir K. Gupta
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Grace A. McComsey
- Department of Pediatrics and Medicine, University Hospitals Cleveland Medical Center, Case Western, Reserve University, Cleveland, Ohio
| | - Karin L. Klingman
- HIV Research Branch, Division of AIDS, National Institute of Allergy and Infectious, Diseases, Bethesda, Maryland
| | - Carl J. Fichtenbaum
- Division of Infectious Diseases, Department of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Todd T. Brown
- Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland
| | - Babafemi O. Taiwo
- Division of Infectious Diseases, Northwestern University, Chicago, Illinois, USA
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25
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Mirza FS, Luthra P, Chirch L. Endocrinological aspects of HIV infection. J Endocrinol Invest 2018; 41:881-899. [PMID: 29313284 DOI: 10.1007/s40618-017-0812-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 12/16/2017] [Indexed: 02/06/2023]
Abstract
PURPOSE Patients with human immunodeficiency virus (HIV) are living longer with effective antiretroviral therapies and are enjoying near normal life span. Therefore, they are encountering endocrine issues faced by the general population along with those specific to HIV infection. The purpose of this article is to review the common endocrine aspects of HIV infection, and the early detection and management strategies for these complications. METHODS Recent literature on HIV and endocrine disease was reviewed. RESULTS HIV can influence endocrine glands at several levels. Endocrine glandular function may be altered by the direct effect of HIV viral proteins, through generation of systemic and local cytokines and the inflammatory response and via glandular involvement with opportunistic infections and HIV-related malignancies. Endocrine disorders seen in people with HIV include metabolic issues related to obesity such as diabetes, hyperlipidemia, lipohypertrophy, lipoatrophy and lipodystrophy and contribute significantly to quality of life, morbidity and mortality. In addition, hypogonadism, osteopenia and osteoporosis are also more prevalent in the patients with HIV. Although disorders of hypothalamic-pituitary-adrenal axis resulting in adrenal insufficiency can be life threatening, these along with thyroid dysfunction are being seen less commonly in the antiretroviral therapy (ART) era. ARTs have greatly improved life expectancy in people living with HIV but can also have adverse endocrine effects. CONCLUSIONS Clinicians need to have a high index of suspicion for endocrine abnormalities in people with HIV as they can be potentially life threatening if untreated. Endocrine evaluation should be pursued as in the general population, with focus on prevention, early detection and treatment to improve quality of life and longevity.
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Affiliation(s)
- F S Mirza
- Division of Endocrinology and Metabolism, Department of Medicine, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-5456, USA.
- Department of Medicine, UConn Health, Farmington, CT, 06030, USA.
| | - P Luthra
- Division of Endocrinology and Metabolism, Department of Medicine, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-5456, USA
- Department of Medicine, UConn Health, Farmington, CT, 06030, USA
| | - L Chirch
- Division of Infectious Diseases, UConn Health, Farmington, CT, 06030, USA
- Department of Medicine, UConn Health, Farmington, CT, 06030, USA
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26
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Innes S, Patel K. Noncommunicable diseases in adolescents with perinatally acquired HIV-1 infection in high-income and low-income settings. Curr Opin HIV AIDS 2018; 13:187-195. [PMID: 29432231 PMCID: PMC5934760 DOI: 10.1097/coh.0000000000000458] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Perinatally HIV-infected adolescents may be at increased risk of noninfectious comorbidities later in life. This review summarizes recent advances in the understanding of noncommunicable diseases (NCD) among HIV-infected adolescents in high-income and lower middle-income countries, and identifies key questions that remain unanswered. We review atherosclerotic vascular disease (AVD), chronic bone disease (CBD), chronic kidney disease (CKD), and chronic lung disease (CLD). RECENT FINDINGS Persistent immune activation and inflammation underlie the pathogenesis of AVD, highlighting the importance of treatment adherence and maintenance of viral suppression, and the need to evaluate interventions to decrease risk. Tenofovir disoproxil fumarate (TDF) and trials of vitamin D supplementation have been the focus of recent studies of CBD with limited studies to date evaluating tenofovir alafenamide as an alternative to TDF for decreasing risk for bone and renal adverse effects among HIV-infected adolescents. Recent studies of CKD have focused primarily on estimating prevalence in different settings whereas studies of CLD are limited. SUMMARY As perinatally HIV-infected children age into adolescence and adulthood with effective long-term ART, it is necessary to continue to evaluate their risks for noninfectious comorbidities and complications, understand mechanisms underlying their risks, and identify and evaluate interventions specifically in this population.
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Affiliation(s)
- Steve Innes
- Family Infectious Diseases Clinical Research Unit (FAMCRU), Stellenbosch University, and Department of Paediatrics and Child Health, Tygerberg Children’s Hospital, Cape Town, South Africa
| | - Kunjal Patel
- Department of Epidemiology, Harvard T.H. Chan School of Public Health and Center for Biostatistics in AIDS Research (CBAR), Boston, MA, USA
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27
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LaFleur J, Bress AP, Myers J, Rosenblatt L, Crook J, Knippenberg K, Bedimo R, Tebas P, Nyman H, Esker S. Tenofovir-Associated Bone Adverse Outcomes among a US National Historical Cohort of HIV-Infected Veterans: Risk Modification by Concomitant Antiretrovirals. Infect Dis Ther 2018; 7:293-308. [PMID: 29492905 PMCID: PMC5986678 DOI: 10.1007/s40121-018-0194-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Indexed: 11/30/2022] Open
Abstract
Introduction Tenofovir disoproxil fumarate (TDF) has been associated with greater incidences of bone complications, which might be modified by some concomitantly administered antiretrovirals, possibly by their effect on tenofovir concentrations. We compared bone adverse outcomes among treatment-naïve HIV-infected US veterans initiating efavirenz (EFV)-containing TDF/emtricitabine (FTC) regimens versus those initiating non-EFV-containing TDF/FTC regimens. Methods Using national Veterans Health Administration clinical and administrative data sets, we identified a cohort of treatment-naïve HIV-infected veterans without bone disease who initiated therapy with TDF/FTC plus EFV, rilpivirine, elvitegravir/cobicistat, or ritonavir-boosted protease inhibitors in 2003–2015. The primary composite adverse bone outcome was the unadjusted incidence rate (IR) of osteoporosis, osteopenia, or fragility fracture (any hip, wrist, or spine fracture). To account for selection bias and confounding, we used inverse probability of treatment-weighted Cox proportional hazards regression models to calculate adjusted hazard ratios (HRs) for each outcome associated with EFV + TDF/FTC versus each non-EFV-containing TDF/FTC regimen. Results Of 33,048 HIV-positive veterans, 7161 initiated a TDF/FTC-containing regimen (mean age, 50 years; baseline CD4 < 200 cells/mm3, 33.3%; HIV-1 RNA > 100,000 copies/ml, 22.3%; mean follow-up, 13.0 months). Of these, 4137 initiated EFV- and 3024 non-EFV-containing regimens. Veterans initiating EFV- versus non-EFV-containing TDF/FTC regimens had a lower IR of the composite bone outcome (29.3 vs. 41.4 per 1000 patient-years), with significant risk reductions for this outcome [HR, 0.69; 95% confidence interval (CI), 0.58–0.83] and fragility fracture (HR, 0.59; 95% CI, 0.44–0.78). Conclusion EFV + TDF/FTC is associated with a lower risk of adverse bone outcomes compared with other TDF-containing regimens in the VHA. Funding Bristol-Myers Squibb. Electronic supplementary material The online version of this article (10.1007/s40121-018-0194-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Joanne LaFleur
- Department of Pharmacotherapy, University of Utah, Salt Lake City, UT, USA.
- Salt Lake City VA Health Care System, Salt Lake City, UT, USA.
| | - Adam P Bress
- Salt Lake City VA Health Care System, Salt Lake City, UT, USA
- Department of Population Health Sciences, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Joel Myers
- Bristol-Myers Squibb, Lawrenceville, NJ, USA
| | | | - Jacob Crook
- Salt Lake City VA Health Care System, Salt Lake City, UT, USA
- Division of Epidemiology, University of Utah, Salt Lake City, UT, USA
| | - Kristin Knippenberg
- Department of Pharmacotherapy, University of Utah, Salt Lake City, UT, USA
- Salt Lake City VA Health Care System, Salt Lake City, UT, USA
| | - Roger Bedimo
- VA North Texas Health Care System, Dallas, TX, USA
- University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Pablo Tebas
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Heather Nyman
- Department of Pharmacotherapy, University of Utah, Salt Lake City, UT, USA
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28
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McGettrick P, Barco EA, Mallon PWG. Ageing with HIV. Healthcare (Basel) 2018; 6:healthcare6010017. [PMID: 29443936 PMCID: PMC5872224 DOI: 10.3390/healthcare6010017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/29/2018] [Accepted: 02/07/2018] [Indexed: 12/13/2022] Open
Abstract
The population of people living with HIV (PLWH) is growing older with an estimated 4 million over the age of 50 years, a figure which has doubled since the introduction of effective antiretroviral therapy (ART) and which is increasing globally. Despite effective ART, PLWH still experience excess morbidity and mortality compared to the general population with increased prevalence of age-related, non-AIDS illnesses (NAI) such as cardiovascular disease, malignancies, cognitive impairment and reduced bone mineral density, which impact disability and everyday functioning. This review will discuss the challenges presented by comorbidities in ageing PLWH and discuss the aetiology and management of age-related illnesses in this vulnerable population.
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Affiliation(s)
- Padraig McGettrick
- HIV Molecular Research Group, UCD School of Medicine, University College Dublin, Dublin, Ireland.
- Mater Misericordae University Hospital, Eccles street, Dublin 7, Ireland.
| | - Elena Alvarez Barco
- HIV Molecular Research Group, UCD School of Medicine, University College Dublin, Dublin, Ireland.
| | - Patrick W G Mallon
- HIV Molecular Research Group, UCD School of Medicine, University College Dublin, Dublin, Ireland.
- Mater Misericordae University Hospital, Eccles street, Dublin 7, Ireland.
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29
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Patel RR, Presti R, Harrison LC, Powderly WG, Chan PA. Tenofovir disoproxil fumarate as pre-exposure prophylaxis for HIV prevention in women with osteoporosis: a case report and review of the literature. Antivir Ther 2018; 23:379-382. [PMID: 29168695 PMCID: PMC6003884 DOI: 10.3851/imp3208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2017] [Indexed: 10/18/2022]
Abstract
Pre-exposure prophylaxis (PrEP), using tenofovir disoproxil fumarate (TDF), can effectively prevent HIV acquisition. However, TDF can cause changes in bone mineral density (BMD). There is little information on the use of PrEP among patients with bone disease. We present a case report of a female with pre-existing osteoporosis who was prescribed PrEP. Over the course of 9 months of consistent PrEP use, verified by dried blood spot testing, we report a lack of BMD changes on serial dual-emission X-ray absorptiometry scans in this patient. This case can inform PrEP care for patients with pre-existing bone disease.
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Affiliation(s)
- Rupa R Patel
- Division of Infectious Diseases, Washington University in St. Louis, St. Louis, Missouri, United State of America
| | - Rachel Presti
- Division of Infectious Diseases, Washington University in St. Louis, St. Louis, Missouri, United State of America
| | - Laura C Harrison
- Division of Infectious Diseases, Washington University in St. Louis, St. Louis, Missouri, United State of America
| | - William G. Powderly
- Division of Infectious Diseases, Washington University in St. Louis, St. Louis, Missouri, United State of America
| | - Philip A Chan
- Division of Infectious Diseases, Brown University, Providence, Rhode Island, United States of America
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30
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Weitzmann MN, Ofotokun I, Titanji K, Sharma A, Yin MT. Bone Loss Among Women Living With HIV. Curr HIV/AIDS Rep 2017; 13:367-373. [PMID: 27678124 DOI: 10.1007/s11904-016-0336-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Clinical data accumulated over the past two decades attests to a significant decline in bone mineral density (BMD) in patients infected by HIV, which does not remit but may actually intensify with anti-retroviral therapy (ART). Long generally perceived as an aberration without clinical consequences in relatively young HIV-infected cohorts, recent studies have documented marked increases in fracture incidence in HIV-infected men and women over a wide age continuum. Fractures are associated with chronic pain, crippling morbidity, and increased mortality, undermining the gains in quality of life achieved though ART. As bone loss and resulting increases in fracture incidence are a natural consequence of aging, there is now concern regarding the long-term consequences of HIV/ART-associated premature bone loss, given the transition of the HIV/AIDS population into an older age demographic. The development of guidelines for diagnosis and treatment of bone disease within the context of HIV and ART has been an important recent step in raising awareness of the problem and the implications of bone fracture for patient health. Significant progress has also been made in recent years in dissecting the complex and multifactorial mechanisms driving bone loss in HIV/ART and the role of underlying immunological disruption in skeletal dysmorphogenesis. This review examines recent progress in the field and studies by Women's Interagency HIV Study (WIHS)-associated investigators, inside and outside of the WIHS cohort, aimed at identifying skeletal abnormalities, quantifying facture incidence, management, and understanding underlying mechanisms in people living with HIV in the context of chronic ART.
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Affiliation(s)
- M Neale Weitzmann
- The Atlanta Department of Veterans Affairs Medical Center, 1670 Clairmont Road, Decatur, GA, 30033, USA. .,Department of Medicine, Division of Endocrinology and Metabolism and Lipids, Emory University School of Medicine, 101 Woodruff Circle, 1305 WMB, Atlanta, GA, 30322, USA.
| | - Ighovwerha Ofotokun
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, 49 Jesse Hill Jr Drive, Atlanta, GA, 30303, USA.,Grady Healthcare System, 80 Jesse Hill Jr Drive SE, Atlanta, GA, 30303, USA
| | - Kehmia Titanji
- Department of Medicine, Division of Endocrinology and Metabolism and Lipids, Emory University School of Medicine, 101 Woodruff Circle, 1305 WMB, Atlanta, GA, 30322, USA
| | - Anjali Sharma
- Divisions of General Internal Medicine and Infectious Diseases, Department of Medicine, Albert Einstein College of Medicine, 1300 Morris Park Ave, Block Bldg #305, Bronx, NY, 10461, USA
| | - Michael T Yin
- Division of Infectious Diseases, Columbia University Medical Center, 630 West 168th Street, PH8-876, New York, NY, 10032, USA
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31
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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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Abstract
Human immunodeficiency virus (HIV) infection is an established risk factor for low bone mineral density (BMD) and subsequent fracture, and treatment with combination antiretroviral therapy (cART) leads to additional BMD loss, particularly in the first 1-2 years of therapy. The prevalence of low BMD and fragility fracture is expected to increase as the HIV-infected population ages with successful treatment with cART. Mechanisms of bone loss in the setting of HIV infection are likely multifactorial, and include viral, host, and immune effects, as well as direct and indirect effects of cART, particularly tenofovir disoproxil fumarate (TDF) and the protease inhibitors (PIs). Emerging data indicate that BMD loss following cART initiation can be mitigated by prophylaxis with either long-acting bisphosphonates or vitamin D and calcium supplementation. In addition, newer antiretrovirals, particularly the integrase strand transfer inhibitors and tenofovir alafenamide (TAF), are associated with less intense bone loss than PIs and TDF. However, further studies are needed to establish optimal bone sparing cART regimens, appropriate screening intervals, and preventive measures to address the rising prevalence of fragility bone disease in the HIV population.
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Biver E, Calmy A, Rizzoli R. Bone health in HIV and hepatitis B or C infections. Ther Adv Musculoskelet Dis 2017; 9:22-34. [PMID: 28101146 PMCID: PMC5228639 DOI: 10.1177/1759720x16671927] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Chronic infections with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) add to age-dependent bone loss and may contribute to lower bone strength in the elderly. In this review, we report recent highlights on the epidemiology of bone fragility in chronic viral infections with HIV, HCV and HBV, its physiopathology and discuss the interference of antiviral therapies with bone metabolism. Chronic infections influence bone through the interactions between risk factors for bone fragility and falls (which are highly prevalent in infected patients), virus activity and antiviral drugs. HIV-infected patients are at increased risk of fracture and the risk is higher in cases of co-infection with HIV and untreated chronic viral hepatitis. In HIV patients, the majority of bone loss occurs during virus activity and at initiation of antiretroviral therapy (ART). However, long-term elderly HIV-infected patients on successful ART display bone microstructure alterations only partially captured by dual energy X-ray absorptiometry (DXA). Bone loss is associated with an increase of bone resorption, reflecting the upregulation of the receptor activator of nuclear factor-kappaB ligand (RANKL) and osteoprotegerin (OPG) pathways via a crosstalk between virus activity, inflammation and the immune system. The use of some antiviral drugs, such as tenofovir (controlling both HBV and HIV infections) or protease inhibitors, may be associated with higher bone toxicity. The reduction of tenofovir plasma concentrations with the implementation of tenofovir alafenamide (TAF) attenuates bone mineral density (BMD) loss but it remains unknown whether it will contribute to reducing fracture risk in long-term HIV-treated patients. Moreover, to what extent the new direct-acting agents for treatment of HCV, including nucleotide inhibitors and protease inhibitors, may affect bone health similarly as ART in HIV should be investigated.
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Affiliation(s)
- Emmanuel Biver
- Division of Bone Diseases, Department of Internal Medicine Specialties, Geneva University Hospitals and Faculty of Medicine, Rue Gabrielle-Perret-Gentil 4, 1211 Geneva 14, Switzerland
| | - Alexandra Calmy
- Division of Infectious Diseases, HIV Unit, Department of Internal Medicine Specialties, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - René Rizzoli
- Division of Bone Diseases, Department of Internal Medicine Specialties, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
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Yin MT, Brown TT. HIV and Bone Complications: Understudied Populations and New Management Strategies. Curr HIV/AIDS Rep 2016; 13:349-358. [PMID: 27730445 DOI: 10.1007/s11904-016-0341-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The higher risk of osteoporosis and fracture associated with HIV infection and certain antiretrovirals has been well established and the need for risk stratification among older adults increasingly recognized. This review focuses upon emerging data on bone complications with HIV/HCV coinfection, in children and adolescents, and with pre-exposure prophylaxis (PrEP), as well as new management strategies to minimize the negative effects of ART on bone.
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Affiliation(s)
- Michael T Yin
- Division of Infectious Diseases, Columbia University Medical Center, 630 w168th street PH8-876, New York, NY, 10032, USA.
| | - Todd T Brown
- Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, 1830 East Monument Street, Suite 333, Baltimore, MD, 21287, USA
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Abstract
Osteoporosis develops when the rate of osteoclastic bone breakdown (resorption) exceeds that of osteoblastic bone formation, which leads to loss of BMD and deterioration of bone structure and strength. Osteoporosis increases the risk of fragility fractures, a cause of substantial morbidity and mortality, especially in elderly patients. This imbalance between bone formation and bone resorption is brought about by natural ageing processes, but is frequently exacerbated by a number of pathological conditions. Of importance to the aetiology of osteoporosis are findings over the past two decades attesting to a deep integration of the skeletal system with the immune system (the immuno-skeletal interface (ISI)). Although protective of the skeleton under physiological conditions, the ISI might contribute to bone destruction in a growing number of pathophysiological states. Although numerous research groups have investigated how the immune system affects basal and pathological osteoclastic bone resorption, recent findings suggest that the reach of the adaptive immune response extends to the regulation of osteoblastic bone formation. This Review examines the evolution of the field of osteoimmunology and how advances in our understanding of the ISI might lead to novel approaches to prevent and treat bone loss, and avert fractures.
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Affiliation(s)
- M Neale Weitzmann
- The Atlanta Department of Veterans Affairs Medical Center, 1670 Clairmont Road, Decatur, Georgia, 30033, USA
- Department of Medicine, Division of Endocrinology and Metabolism and Lipids, Emory University School of Medicine, 101 Woodruff Circle, 1305 WMB, Atlanta, Georgia 30322, USA
| | - Ighovwerha Ofotokun
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, 49 Jesse Hill Jr Drive, Atlanta, Georgia 30303, USA
- Grady Healthcare System, 80 Jesse Hill Jr Drive SE, Atlanta, Georgia, 30303, USA
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