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  1. Article ; Online: Reducing the risk of re-fracture in the dialysis population: is it time to consider therapy with PTH analogues?

    Jamal, Sophie A / Hodsman, Anthony B

    Seminars in dialysis

    2011  Volume 24, Issue 1, Page(s) 12–15

    Abstract: Dialysis patients are at high risk for fracture, with published rates in excess of a 20% probability of fracture over the next 10 years of dialysis. Unfortunately, there is no accepted methodology for quantifying this risk in advance of the first ... ...

    Abstract Dialysis patients are at high risk for fracture, with published rates in excess of a 20% probability of fracture over the next 10 years of dialysis. Unfortunately, there is no accepted methodology for quantifying this risk in advance of the first fracture; conventional bone densitometry performs unreliably in this role, in contrast to its utility in elderly patients with osteoporosis. The KDIGO clinical guidelines emphasize the importance of bone turnover in the development of renal osteodystrophy with high bone turnover strongly associated with uncontrolled secondary hyperparathyroidism, and adynamic bone disease (ABD) defined as a very low bone turnover state associated with functional hypoparathyroidism. It is likely that fractures occur in association with both extremes of uremic bone turnover, in addition to the known risk factors for developing osteoporosis prior to an individual developing end-stage renal failure. No systematic evidence has been forthcoming on therapy to reduce the risk of re-fracture after a dialysis patient presents with a first fracture. Anti-resorptive therapy might be effective in high turnover uremic bone disease and has been demonstrably effective in reducing fracture risk in osteoporotic patients, but there is only post hoc evidence that cinacalcet might reduce the incidence of fractures, and almost no evidence on outcomes from the use of bisphosphonates in dialysis patients. Fractures associated with ABD present a particular challenge. Although aluminum intoxication has been an important cause of skeletal fracturing in the past, this is a rare event today, when nonaluminum containing dietary phosphate binders are routinely prescribed. We suggest that the use of an anabolic agent would be a more plausible approach to the management of ABD (rather than anti-resorptive agents) and propose that a "proof-of-concept" trial with a PTH analogue such as teriparatide should be considered for these patients.
    MeSH term(s) Aged ; Bone Density Conservation Agents/therapeutic use ; Chronic Kidney Disease-Mineral and Bone Disorder/blood ; Chronic Kidney Disease-Mineral and Bone Disorder/complications ; Chronic Kidney Disease-Mineral and Bone Disorder/therapy ; Fractures, Bone/blood ; Fractures, Bone/etiology ; Fractures, Bone/prevention & control ; Humans ; Hypoparathyroidism/blood ; Hypoparathyroidism/drug therapy ; Hypoparathyroidism/etiology ; Middle Aged ; Parathyroid Hormone/analysis ; Renal Dialysis/adverse effects ; Risk Factors ; Teriparatide/therapeutic use
    Chemical Substances Bone Density Conservation Agents ; Parathyroid Hormone ; Teriparatide (10T9CSU89I)
    Language English
    Publishing date 2011-01
    Publishing country United States
    Document type Editorial
    ZDB-ID 1028193-9
    ISSN 1525-139X ; 0894-0959
    ISSN (online) 1525-139X
    ISSN 0894-0959
    DOI 10.1111/j.1525-139X.2010.00817.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Renal function and 25-hydroxyvitamin D concentrations predict parathyroid hormone levels in renal transplant patients.

    Boudville, Neil C / Hodsman, Anthony B

    Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association

    2006  Volume 21, Issue 9, Page(s) 2621–2624

    Abstract: Background: Recent guidelines suggest supplementation with ergocalciferol (vitamin D(2)) in chronic kidney disease stages 3 and 4 patients with elevated parathyroid hormone (PTH) levels and 25-hydroxyvitamin D (25OHD) levels <75 nmol/l. These guidelines ...

    Abstract Background: Recent guidelines suggest supplementation with ergocalciferol (vitamin D(2)) in chronic kidney disease stages 3 and 4 patients with elevated parathyroid hormone (PTH) levels and 25-hydroxyvitamin D (25OHD) levels <75 nmol/l. These guidelines are also applied to renal transplant patients. However, the prevalence rates of 25OHD deficiency and its association with PTH levels in renal transplant populations have not been extensively examined. We aimed to document the prevalence rates of 25OHD deficiency [defined by serum levels <40 nmol/l (<16 ng/ml)] and insufficiency [<75 nmol/l (<30 ng/ml)] in a single renal transplant centre, and examine its relationship with PTH levels.
    Methods: Serum 25OHD and PTH concentrations were measured in 419 transplant patients attending a single renal transplant clinic over a 4-month period. Demographic and biochemical data were also collected, including serum creatinine, calcium, phosphate and albumin. Simple and multiple linear regression analysis were performed.
    Results: In 27.3% of the patients, 25OHD deficiency was present, and 75.5% had insufficiency. On univariate analysis, 25OHD, serum albumin and estimated glomerular filtration rate (eGFR) were significantly associated with PTH levels (P < 0.0001, P = 0.004 and P < 0.0001, respectively). Multiple linear regression demonstrated that only 25OHD, eGFR and serum phosphate were significantly predictive of PTH levels (R(2) = 0.19, P < 0.0001). In this model, a 75 nmol/l increase in 25OHD will only result in a maximal reduction in PTH of 2.0 pmol/l.
    Conclusions: We conclude that 25OHD deficiency and insufficiency are common in renal transplant patients and may exacerbate secondary hyperparathyroidism. However, 25OHD, eGFR and phosphate only account for 19% of the variability in PTH levels. In addition, even a large increase in serum 25OHD levels is likely to result in only a small reduction in PTH. Therefore, alternative approaches to managing hyperparathyroidism in renal transplant recipients rather than supplementation with ergocalciferol are warranted.
    MeSH term(s) Biomarkers/blood ; Creatinine/blood ; Enzyme-Linked Immunosorbent Assay ; Female ; Follow-Up Studies ; Glomerular Filtration Rate/physiology ; Humans ; Hyperparathyroidism, Secondary/blood ; Hyperparathyroidism, Secondary/diagnosis ; Hyperparathyroidism, Secondary/etiology ; Kidney Failure, Chronic/blood ; Kidney Failure, Chronic/surgery ; Kidney Transplantation/adverse effects ; Male ; Middle Aged ; Parathyroid Hormone/blood ; Prognosis ; Radioimmunoassay ; Retrospective Studies ; Vitamin D/analogs & derivatives ; Vitamin D/blood ; Vitamin D Deficiency/blood ; Vitamin D Deficiency/etiology ; Vitamin D Deficiency/physiopathology
    Chemical Substances Biomarkers ; Parathyroid Hormone ; Vitamin D (1406-16-2) ; 25-hydroxyvitamin D (A288AR3C9H) ; Creatinine (AYI8EX34EU)
    Language English
    Publishing date 2006-09
    Publishing country England
    Document type Comparative Study ; Journal Article
    ZDB-ID 90594-x
    ISSN 1460-2385 ; 0931-0509
    ISSN (online) 1460-2385
    ISSN 0931-0509
    DOI 10.1093/ndt/gfl201
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  3. Article ; Online: Long-term changes in bone mineral density in kidney transplant recipients.

    Naylor, Kyla L / Garg, Amit X / Hodsman, Anthony B / Rush, David N / Leslie, William D

    Transplantation

    2014  Volume 98, Issue 12, Page(s) 1279–1285

    Abstract: Background: Alterations in bone mineral metabolism occur when kidney function declines and often continue after transplantation. We investigated long-term changes in bone mineral density (BMD) among kidney transplant recipients undergoing routine ... ...

    Abstract Background: Alterations in bone mineral metabolism occur when kidney function declines and often continue after transplantation. We investigated long-term changes in bone mineral density (BMD) among kidney transplant recipients undergoing routine clinical BMD monitoring and management.
    Methods: We identified adults receiving a kidney transplant in the province of Manitoba, Canada (1996-2011) who had greater than or equal to 2 posttransplant dual energy X-ray absorptiometry examinations. Bone mineral density was expressed as Z scores (standard deviation above/below sex-matched and age-matched reference data). The main outcome was the change in BMD.
    Results: A total of 326 kidney transplant recipients were included (mean age, 45 years; 61% men). Recipients were followed up for an average of 8.2 years (766 follow-up dual energy X-ray absorptiometry measurements). At baseline (first scan; median, 0.5 years after transplantation), bone density was slightly below average for age and sex (mean Z scores: lumbar spine, -0.4 ± 1.6; femoral neck, -0.7 ± 1.1; total hip, -0.7 ± 1.1). At the second scan (mean, 2.7 years after first scan), mean bone density Z scores have increased (lumbar spine, -0.2 ± 1.6; femoral neck, -0.6 ± 1; total hip, -0.6 ± 1.1; matched, P < 0.01 at all sites). The only factor associated with a significant BMD change at all sites was osteoporosis treatment (BMD increase). Even after restricting the analysis to recipients who had not received osteoporosis treatment, final mean bone density (mean, 8.2 years after first scan) was average for age and sex (lumbar spine, +0.7 ± 1.6; femoral neck, -0.1 ± 1.1; total hip, 0.0 ± 1.1).
    Conclusion: With routine BMD monitoring and management, posttransplant bone density typically remains stable or improves with mean values that are average for age and sex.
    MeSH term(s) Absorptiometry, Photon ; Adult ; Bone Density ; Female ; Femur Neck/pathology ; Humans ; Kidney Failure, Chronic/surgery ; Kidney Transplantation ; Longitudinal Studies ; Male ; Manitoba ; Middle Aged ; Osteoporosis/complications ; Osteoporosis/therapy ; Quality Control ; Transplant Recipients
    Language English
    Publishing date 2014-12-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 208424-7
    ISSN 1534-6080 ; 0041-1337
    ISSN (online) 1534-6080
    ISSN 0041-1337
    DOI 10.1097/TP.0000000000000284
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: FRAX predicts fracture risk in kidney transplant recipients.

    Naylor, Kyla L / Leslie, William D / Hodsman, Anthony B / Rush, David N / Garg, Amit X

    Transplantation

    2014  Volume 97, Issue 9, Page(s) 940–945

    Abstract: Background: The World Health Organization Fracture Risk Assessment Tool (FRAX) estimates the 10-year fracture probability. We assessed the prognostic value of FRAX in kidney transplant recipients, as its utility in recipients is unknown.: Methods: We ...

    Abstract Background: The World Health Organization Fracture Risk Assessment Tool (FRAX) estimates the 10-year fracture probability. We assessed the prognostic value of FRAX in kidney transplant recipients, as its utility in recipients is unknown.
    Methods: We considered 458 individuals (mean age 45 years, 64% men) who received a kidney transplant in the province of Manitoba, Canada at the time of their first bone mineral density (BMD) test posttransplant (mean 1.1 years posttransplant; transplant years 1996-2011). FRAX probabilities were calculated from baseline information (age, sex, clinical risk factors, with or without BMD). Recipients were followed a mean of 6.4 years (interquartile range 3.0-10.0 years) after cohort entry for an incident major osteoporotic fracture.
    Results: In follow-up, 21 (4.6%) recipients experienced a major osteoporotic fracture. The observed 10-year major osteoporotic fracture risk of 6.3% (95% CI, 3.4-9.2%) was concordant with FRAX predictions (5.0% with BMD, 5.6% without BMD). Major osteoporotic fracture scores showed significant fracture prediction (hazard ratio per standard deviation, FRAX without BMD 1.66, 95% CI, 1.10-2.50; FRAX with BMD 1.64, 95% CI, 1.07-2.51). Area under the curve (AUC) for incident major osteoporotic fracture discrimination (AUC: FRAX with BMD 0.62, 95% CI, 0.50-0.74) was similar to the general population.
    Conclusions: FRAX scores categorized most kidney transplant recipients as a low-risk fracture group, and the low observed fracture rates were consistent with the 10-year fracture predictions. FRAX showed modest fracture prediction and discrimination similar to the general population. Independent validation is needed before clinicians can routinely use FRAX in kidney transplant recipients.
    MeSH term(s) Adult ; Area Under Curve ; Bone Density ; Calibration ; Cohort Studies ; Female ; Follow-Up Studies ; Humans ; Kidney Transplantation ; Male ; Manitoba ; Middle Aged ; Osteoporotic Fractures/diagnosis ; Osteoporotic Fractures/etiology ; Probability ; Prognosis ; Proportional Hazards Models ; Renal Insufficiency/therapy ; Risk Assessment ; Risk Factors ; World Health Organization
    Language English
    Publishing date 2014-05-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 208424-7
    ISSN 1534-6080 ; 0041-1337
    ISSN (online) 1534-6080
    ISSN 0041-1337
    DOI 10.1097/01.TP.0000438200.84154.1a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Estimating osteoporotic fracture risk following a wrist fracture: a tale of two systems.

    Beattie, Karen / Adachi, Jonathan / Ioannidis, George / Papaioannou, Alexandra / Leslie, William D / Grewal, Ruby / MacDermid, Joy / Hodsman, Anthony B

    Archives of osteoporosis

    2015  Volume 10, Page(s) 13

    Abstract: Unlabelled: The WHO fracture risk assessment (FRAX) and Canadian Association of Radiologists and Osteoporosis Canada (CAROC) tools can both be used to determine an individual's 10-year risk of osteoporotic fracture. However, these tools differ in their ... ...

    Abstract Unlabelled: The WHO fracture risk assessment (FRAX) and Canadian Association of Radiologists and Osteoporosis Canada (CAROC) tools can both be used to determine an individual's 10-year risk of osteoporotic fracture. However, these tools differ in their risk calculation. For participants <65 years with a wrist fracture, FRAX provides a lower fracture risk estimate than CAROC resulting in fewer decisions to initiate therapy.
    Purpose: The purpose of the current report is to compare fracture risk prediction rates using the CAROC and the FRAX® tools.
    Methods: Individuals ≥50 years with a distal radius fracture resulting from a fall from standing height or less were recruited from a single orthopedic clinic. Participants underwent a DXA scan of their lumbar spine and hip. Femoral neck (FN) bone mineral density (BMD) and fracture risk factors were used to determine each participant's 10-year fracture risk using both fracture risk assessment tools. Participants were categorized as low (<10 %), moderate (10-20 %), or high (>20 %) risk. Stratified by age (<65 years, >65 years), the proportion of participants in each category was compared between the tools.
    Results: Analyses included 60 participants (mean age 65.7 ± 9.6 years). In those <65 years (n = 26), the proportion of individuals at low, moderate, and high risk differed between the FRAX and CAROC tools (p < 0.0001). FRAX categorized 69 % as low (CAROC 0 %) and 3 % as high (CAROC 12 %) risk. For individuals >65 years, almost all were at least at moderate risk (FRAX 79 %, CAROC 53 %), but fewer were at high risk using FRAX (18 vs. 47 %, p < 0.0003).
    Conclusion: For participants <65 years with a wrist fracture, FRAX provides a lower estimate of 10-year fracture risk than CAROC resulting in fewer decisions to initiate therapy. However, almost all participants >65 years were at moderate or high risk under both FRAX and CAROC and should at least be considered for pharmacotherapy.
    MeSH term(s) Aged ; Female ; Humans ; Male ; Middle Aged ; Osteoporosis/diagnosis ; Osteoporosis/pathology ; Osteoporotic Fractures/diagnosis ; Osteoporotic Fractures/pathology ; Prognosis ; Radius Fractures/diagnosis ; Radius Fractures/pathology ; Risk Assessment ; Risk Factors ; Wrist Injuries/diagnosis ; Wrist Injuries/pathology
    Language English
    Publishing date 2015
    Publishing country England
    Document type Comparative Study ; Evaluation Studies ; Journal Article
    ZDB-ID 2253231-6
    ISSN 1862-3514 ; 1862-3522
    ISSN (online) 1862-3514
    ISSN 1862-3522
    DOI 10.1007/s11657-015-0218-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: 10-year probability of recurrent fractures following wrist and other osteoporotic fractures in a large clinical cohort: an analysis from the Manitoba Bone Density Program.

    Hodsman, Anthony B / Leslie, William D / Tsang, James F / Gamble, Greg D

    Archives of internal medicine

    2008  Volume 168, Issue 20, Page(s) 2261–2267

    Abstract: Background: Wrist fractures are the most prevalent type of fracture occurring in postmenopausal women. We sought to contrast the probability of recurrent osteoporotic fractures after a primary wrist fracture with other important primary fracture sites.!# ...

    Abstract Background: Wrist fractures are the most prevalent type of fracture occurring in postmenopausal women. We sought to contrast the probability of recurrent osteoporotic fractures after a primary wrist fracture with other important primary fracture sites.
    Methods: A historical cohort study comprising 21,432 women 45 years or older referred for bone mineral density (BMD) testing. Longitudinal health service records were assessed for the presence of fracture codes before and after BMD testing (359,737 person-years of observation).
    Results: A total of 2652 women (12.4%) experienced a primary fracture (wrist, vertebra, humerus, hip) prior to BMD testing, of which wrist fractures were the largest single group (1225 [46.2%]). The adjusted hazard ratio (HR) for recurrent osteoporotic fracture following a primary wrist fracture (HR, 1.58; 95% confidence interval [CI], 1.29-1.93) was lower than for other primary fractures (HR, 2.66; 95% CI, 2.30-3.08). Primary wrist fractures were not significantly associated with subsequent hip fractures (adjusted HR, 1.29; 95% CI, 0.88-1.89), whereas other primary fracture sites were individually and collectively significant predictors of future hip fractures (HR, 1.72; 95% CI, 1.31-2.26). The 10-year probability of any recurrent fracture after a primary wrist fracture was 14.2% (95% CI, 11.9%-16.5%), which was significantly less than for other primary fractures (spine, 25.7%; hip, 24.9%; humerus, 23.7%; P < .001 for all comparisons vs wrist) but greater than in those without prior fractures (10.8%; P < .001). The relationship between BMD and fracture risk was much stronger after a primary wrist fracture (HR, 2.20 per standard deviation; 95% CI, 1.70-2.80) than after other primary osteoporotic fractures (HR, 1.21; 95% CI, 1.05-1.40), reflecting the dominance of the other fracture information over BMD.
    Conclusions: Wrist fractures are the most common of the clinical osteoporotic fractures in patients referred for BMD testing. However, the risk of recurrent fractures in the 10 years following a wrist fracture is substantially lower than that following other osteoporotic fractures, although it remains significantly higher than for those who have yet to experience a fracture.
    MeSH term(s) Bone Density ; Female ; Fractures, Spontaneous/epidemiology ; Hip Fractures/epidemiology ; Humans ; Humeral Fractures/epidemiology ; Middle Aged ; Osteoporosis/complications ; Probability ; Recurrence ; Wrist Injuries/epidemiology
    Language English
    Publishing date 2008-11-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 211575-x
    ISSN 1538-3679 ; 0003-9926 ; 0888-2479 ; 0730-188X
    ISSN (online) 1538-3679
    ISSN 0003-9926 ; 0888-2479 ; 0730-188X
    DOI 10.1001/archinte.168.20.2261
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  7. Article: Type 1 parathyroid hormone receptor (PTH1R) nuclear trafficking: regulation of PTH1R nuclear-cytoplasmic shuttling by importin-alpha/beta and chromosomal region maintenance 1/exportin 1.

    Pickard, Bryce W / Hodsman, Anthony B / Fraher, Laurence J / Watson, Patricia H

    Endocrinology

    2007  Volume 148, Issue 5, Page(s) 2282–2289

    Abstract: The type 1 PTH/PTH-related peptide receptor (PTH1R) is a class B G protein-coupled receptor ... suggesting that CRM1 and PTH1R form a complex in vivo. After treatment with leptomycin B, a specific ...

    Abstract The type 1 PTH/PTH-related peptide receptor (PTH1R) is a class B G protein-coupled receptor that demonstrates immunoreactivity in the nucleus as well as cytoplasm of target cells. Our previous studies on the PTH1R have shown that it associates with the importin family of transport regulatory proteins. To investigate the role of the importins in PTH1R nuclear import, we used small interfering (si)RNA technology to knock down the expression of importin-beta in the mouse osteoblast-like cell line, MC3T3-E1. Immunofluorescence microscopy as well as ligand blotting for PTH1R in nuclear fractions of importin-beta siRNA-treated cells demonstrated a decrease in nuclear localization of the PTH1R in comparison with control cells. Under normal culture conditions, PTH1R is present in both the nucleus and cytoplasm of cells. Serum starvation favors nuclear localization of PTH1R, whereas returning cells to serum or treatment with PTH-related peptide induced its cytoplasmic localization. To address the nuclear export of PTH1R, interactions between PTH1R and chromosomal region maintenance 1 (CRM1) were investigated. PTH1R and CRM1 coimmunoprecipitated from MC3T3-E1 cells, suggesting that CRM1 and PTH1R form a complex in vivo. After treatment with leptomycin B, a specific inhibitor of CRM1-mediated nuclear export, PTH1R accumulated in the nucleus. Taken together, our studies show that PTH1R shuttles from the nucleus to the cytoplasm under normal physiological conditions and that this nuclear-cytoplasmic transport is dependent upon importin-alpha/beta and CRM1.
    MeSH term(s) Active Transport, Cell Nucleus/drug effects ; Active Transport, Cell Nucleus/physiology ; Animals ; Antibiotics, Antineoplastic/pharmacology ; Cell Nucleus/metabolism ; Cells, Cultured ; Chromosomes, Mammalian/physiology ; Cytoplasm/metabolism ; Fatty Acids, Unsaturated/pharmacology ; Immunoprecipitation ; Karyopherins/metabolism ; Mice ; Osteoblasts/cytology ; Osteoblasts/metabolism ; RNA, Small Interfering ; Receptor, Parathyroid Hormone, Type 1/genetics ; Receptor, Parathyroid Hormone, Type 1/metabolism ; Receptors, Cytoplasmic and Nuclear/metabolism ; alpha Karyopherins/metabolism ; beta Karyopherins/genetics ; beta Karyopherins/metabolism ; Exportin 1 Protein
    Chemical Substances Antibiotics, Antineoplastic ; Fatty Acids, Unsaturated ; Karyopherins ; RNA, Small Interfering ; Receptor, Parathyroid Hormone, Type 1 ; Receptors, Cytoplasmic and Nuclear ; alpha Karyopherins ; beta Karyopherins ; leptomycin B (Y031I2N1EO)
    Language English
    Publishing date 2007-02-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 427856-2
    ISSN 1945-7170 ; 0013-7227
    ISSN (online) 1945-7170
    ISSN 0013-7227
    DOI 10.1210/en.2007-0157
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  8. Article ; Online: Fracture risk in kidney transplant recipients: a systematic review.

    Naylor, Kyla L / Li, Alvin H / Lam, Ngan N / Hodsman, Anthony B / Jamal, Sophie A / Garg, Amit X

    Transplantation

    2013  Volume 95, Issue 12, Page(s) 1461–1470

    Abstract: Background: Fractures in men and women after kidney transplantation are associated with morbidity (including acute and chronic pain), mortality, and high economic costs.: Methods: We systematically reviewed cohort studies that provided estimates on ... ...

    Abstract Background: Fractures in men and women after kidney transplantation are associated with morbidity (including acute and chronic pain), mortality, and high economic costs.
    Methods: We systematically reviewed cohort studies that provided estimates on incidence and risk factors for fracture in kidney transplant recipients. We abstracted data in duplicate and assessed the methodological quality of each study on a 17-point scale (17 representing the highest quality).
    Results: We screened 2715 articles, reviewed 81, and included 10 studies totaling 262,678 recipients (study mean, 26,268 recipients; range, 61-77,430). The average follow-up ranged from 1.7 to 5.3 years. The study quality scores ranged from 8 to 13. Fracture sites varied by study resulting in a highly variable incidence rate ranging from 3.3 to 99.6 fractures per 1000 person-years. Similarly, the 5-year cumulative incidence for fracture varied ranging from 0.85% to 27%. Common factors associated with an increased fracture risk were older age, female sex, the presence of diabetes, and receipt of dialysis before transplantation. Other less common but statistically significant risk factors were a previous history of fracture and receipt of a kidney from a deceased (vs. living) donor.
    Conclusions: There is poor consensus on the incidence and risk factors for fractures in kidney transplant recipients. Previous studies vary substantially in quality, fracture definitions, and the characteristics of recipients studied. Future research should clarify fracture incidence and risk, which will inform the design of future prevention trials and guide prognostication.
    MeSH term(s) Adult ; Age Factors ; Cohort Studies ; Female ; Fractures, Bone/complications ; Fractures, Bone/prevention & control ; Humans ; Kidney Transplantation/adverse effects ; Male ; Middle Aged ; Multivariate Analysis ; Proportional Hazards Models ; Renal Insufficiency/complications ; Renal Insufficiency/surgery ; Research Design ; Risk ; Risk Factors ; Sex Factors ; Time Factors
    Language English
    Publishing date 2013-06-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 208424-7
    ISSN 1534-6080 ; 0041-1337
    ISSN (online) 1534-6080
    ISSN 0041-1337
    DOI 10.1097/TP.0b013e31828eead8
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  9. Article: Appropriate osteoporosis treatment by family physicians in response to FRAX vs CAROC reporting: results from a randomized controlled trial.

    Beattie, Karen A / Ioannidis, George / MacDermid, Joy C / Grewal, Ruby / Papaioannou, Alexandra / Adachi, Jonathan D / Hodsman, Anthony B

    Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry

    2013  Volume 17, Issue 4, Page(s) 458–465

    Abstract: Canadian guidelines recommend either the FRAX or the Canadian Association of Radiologists and Osteoporosis Canada (CAROC) fracture risk assessment tools to report 10-yr fracture risk as low ( ... 20%). It is unknown whether ...

    Abstract Canadian guidelines recommend either the FRAX or the Canadian Association of Radiologists and Osteoporosis Canada (CAROC) fracture risk assessment tools to report 10-yr fracture risk as low (<10%), moderate (10%-20%) or high (>20%). It is unknown whether one reporting system is more effective in helping family physicians (FPs) identify individuals who require treatment. Individuals ≥50 yr old with a distal radius fracture and no previous osteoporosis diagnosis or treatment were recruited. Participants underwent a dual-energy x-ray absorptiometry scan and answered questions about fracture risk factors. Participants' FPs were randomized to receive either a FRAX report or the standard CAROC-derived bone mineral density report currently used by the institution. Only the FRAX report included statements regarding treatment recommendations. Within 3 mo, all participants were asked about follow-up care by their FP, and treatment recommendations were compared with an osteoporosis specialist. Sixty participants were enrolled (31 to FRAX and 29 to CAROC). Kappa statistics of agreement in treatment recommendation were 0.64 for FRAX and 0.32 for bone mineral density. The FRAX report was preferred by FPs and resulted in better postfracture follow-up and treatment that agreed more closely with a specialist. Either the clear statement of fracture risk or the specific statement of treatment recommendations on the FRAX report may have supported FPs to make better treatment decisions.
    MeSH term(s) Absorptiometry, Photon ; Aged ; Aged, 80 and over ; Canada ; Comorbidity ; Decision Making ; Female ; Humans ; Male ; Middle Aged ; Osteoporosis/therapy ; Osteoporotic Fractures/diagnostic imaging ; Physicians, Family ; Predictive Value of Tests ; Radius Fractures/diagnostic imaging ; Risk Assessment/methods ; Risk Factors ; Sensitivity and Specificity ; Surveys and Questionnaires
    Language English
    Publishing date 2013-10-25
    Publishing country United States
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 2040951-5
    ISSN 1094-6950
    ISSN 1094-6950
    DOI 10.1016/j.jocd.2013.09.007
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  10. Article: Risk factors for fracture in adult kidney transplant recipients.

    Naylor, Kyla L / Zou, Guangyong / Leslie, William D / Hodsman, Anthony B / Lam, Ngan N / McArthur, Eric / Fraser, Lisa-Ann / Knoll, Gregory A / Adachi, Jonathan D / Kim, S Joseph / Garg, Amit X

    World journal of transplantation

    2016  Volume 6, Issue 2, Page(s) 370–379

    Abstract: Aim: To determine the general and transplant-specific risk factors for fractures in kidney transplant recipients.: Methods: We conducted a cohort study of all adults who received a kidney-only transplant (n = 2723) in Ontario, Canada between 2002 and ...

    Abstract Aim: To determine the general and transplant-specific risk factors for fractures in kidney transplant recipients.
    Methods: We conducted a cohort study of all adults who received a kidney-only transplant (n = 2723) in Ontario, Canada between 2002 and 2009. We used multivariable Cox proportional hazards regression to determine general and transplant-specific risk factors for major fractures (proximal humerus, forearm, hip, and clinical vertebral). The final model was established using the backward elimination strategy, selecting risk factors with a P-value ≤ 0.2 and forcing recipient age and sex into the model. We also assessed risk factors for other fracture locations (excluding major fractures, and fractures involving the skull, hands or feet).
    Results: There were 132 major fractures in the follow-up (8.1 fractures per 1000 person-years). General risk factors associated with a greater risk of major fracture were older recipient age [adjusted hazard ratio (aHR) per 5-year increase 1.11, 95%CI: 1.03-1.19] and female sex (aHR = 1.81, 95%CI: 1.28-2.57). Transplant-specific risk factors associated with a greater risk of fracture included older donor age (5-year increase) (aHR = 1.09, 95%CI: 1.02-1.17) and end-stage renal disease (ESRD) caused by diabetes (aHR = 1.72, 95%CI: 1.09-2.72) or cystic kidney disease (aHR = 1.73, 95%CI: 1.08-2.78) (compared to glomerulonephritis as the reference cause). Risk factors across the two fracture locations were not consistent (major fracture locations vs other). Specifically, general risk factors associated with an increased risk of other fractures were diabetes and a fall with hospitalization prior to transplantation, while length of time on dialysis, and renal vascular disease and other causes of ESRD were the transplant-specific risk factors associated with a greater risk of other fractures.
    Conclusion: Both general and transplant-specific risk factors were associated with a higher risk of fractures in kidney transplant recipients. Results can be used for clinical prognostication.
    Language English
    Publishing date 2016-05-27
    Publishing country United States
    Document type Journal Article
    ISSN 2220-3230
    ISSN 2220-3230
    DOI 10.5500/wjt.v6.i2.370
    Database MEDical Literature Analysis and Retrieval System OnLINE

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