scholarly journals Glucocorticoid replacement therapy and pharmacogenetics in Addison's disease: effects on bone

2009 ◽  
Vol 160 (6) ◽  
pp. 993-1002 ◽  
Author(s):  
Kristian Løvås ◽  
Clara G Gjesdal ◽  
Monika Christensen ◽  
Anette B Wolff ◽  
Bjørg Almås ◽  
...  

ContextPatients with primary adrenal insufficiency (Addison's disease) receive more glucococorticoids than the normal endogenous production, raising concern about adverse effects on bone.ObjectiveTo determine i) the effects of glucocorticoid replacement therapy on bone, and ii) the impact of glucocorticoid pharmacogenetics.Design, setting and participantsA cross-sectional study of two large Addison's cohorts from Norway (n=187) and from UK and New Zealand (n=105).Main outcome measuresBone mineral density (BMD) was measured; the Z-scores represent comparison with a reference population. Blood samples from 187 Norwegian patients were analysed for bone markers and common polymorphisms in genes that have been associated with glucocorticoid sensitivity.ResultsFemoral neck BMD Z-scores were significantly reduced in the patients (Norway: mean −0.28 (95% confidence intervals (CI) −0.42, −0.16); UK and New Zealand: −0.21 (95% CI −0.36, −0.06)). Lumbar spine Z-scores were reduced (Norway: −0.17 (−0.36, +0.01); UK and New Zealand: −0.57 (−0.78, −0.37)), and significantly lower in males compared with females (P=0.02). The common P-glycoprotein (ABCB1) polymorphism C3435T was significantly associated with total BMD (CC and CT>TT P=0.015), with a similar trend at the hip and spine.ConclusionsBMD at the femoral neck and lumbar spine is reduced in Addison's disease, indicating undesirable effects of the replacement therapy. The findings lend support to the recommendations that 15–25 mg hydrocortisone daily is more appropriate than the higher conventional doses. A common polymorphism in the efflux transporter P-glycoprotein is associated with reduced bone mass and might confer susceptibility to glucocorticoid induced osteoporosis.

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Stefana Catalina Bilha ◽  
Letitia Leustean ◽  
Cristina Preda ◽  
Dumitru D. Branisteanu ◽  
Laura Mihalache ◽  
...  

Abstract Background Despite the increased fracture risk, bone mineral density (BMD) is variable in type 1 (T1D) and type 2 (T2D) diabetes mellitus. We aimed at comparing independent BMD predictors in T1D, T2D and control subjects, respectively. Methods Cross-sectional case-control study enrolling 30 T1D, 39 T2D and 69 age, sex and body mass index (BMI) – matched controls that underwent clinical examination, dual-energy X-ray absorptiometry (BMD at the lumbar spine and femoral neck) and serum determination of HbA1c and parameters of calcium and phosphate metabolism. Results T2D patients had similar BMD compared to T1D individuals (after adjusting for age, BMI and disease duration) and to matched controls, respectively. In multiple regression analysis, diabetes duration – but not HbA1c- negatively predicted femoral neck BMD in T1D (β= -0.39, p = 0.014), while BMI was a positive predictor for lumbar spine (β = 0.46, p = 0.006) and femoral neck BMD (β = 0.44, p = 0.007) in T2D, besides gender influence. Age negatively predicted BMD in controls, but not in patients with diabetes. Conclusions Long-standing diabetes and female gender particularly increase the risk for low bone mass in T1D. An increased body weight partially hinders BMD loss in T2D. The impact of age appears to be surpassed by that of other bone regulating factors in both T1D and T2D patients.


2016 ◽  
Vol 17 (2) ◽  
pp. 138-141
Author(s):  
Samira Sharmin ◽  
Mabubul Haque ◽  
Syedur Rahman Miah ◽  
Md Mahbub Ur Rahman ◽  
Jasmine Ara Haque ◽  
...  

Objectives: Low bone mass is a common disorder in elderly population which predisposes to fracture with minimal trauma. This study was performed to find out the association between the Body Mass Index (BMI) and Bone Mineral Density (BMD) in postmenopausal women.Materials and Methods: This cross sectional study was carried out at Institute of Nuclear Medicine and Allied Sciences Comilla and Mitford, Dhaka over a period of 12 months from January 2013 to December 2013. A total 93 postmenopausal women were enrolled for this study. All postmenopausal women underwent a BMD scan of femoral neck and lumbar vertebrae using a Dual Energy X-ray Absorptiometry (DEXA). Participants were categorized into three groups according to their age and BMI. BMD were expressed base on T-score according to WHO criteria. The relation among BMI, age and BMD were assessed.Results: The results of this study showed that the mean age of the study group was 57.13±7.49 years with range of 46 to 75 years. The most postmenopausal women were in age group 55-65years. The mean BMI of the study subjects were 24.18±5.08 kg/m2 with a range of 15.62 to 36.20 kg/m2. Among 93 subjects osteopenia was greater at lumbar spine (45.2%) with T-score mean±SD-1.83±0.33 and osteoporosis at femoral neck (51.6%) with T-score mean ±SD-3.36±-0.67. Pearson’s correlation coefficient test showed inverse relationship between age and BMD both lumbar spine (r = -0.301, p = 0.003) and femoral neck (r = -0.303, p=0.003) whereas the positive relation between BMI and BMD both at lumbar spine (r=0.338, p=0.001) and femoral neck (r =0.343, p=0.001). These showed that with advancing age, BMD decreases and the risk of osteoporosis increases and with increasing BMI, BMD increases and risk of osteoporosis decreases.Conclusion: The findings of this study portrait that aging and low BMI are risk factors associated with bone loss. So preventive measure should be taken for high risk post menopausal women.Bangladesh J. Nuclear Med. 17(2): 138-141, July 2014


2011 ◽  
Vol 129 (3) ◽  
pp. 139-145 ◽  
Author(s):  
Daniela Fodor ◽  
Cosmina Bondor ◽  
Adriana Albu ◽  
Laura Muntean ◽  
Siao-pin Simon ◽  
...  

CONTEXT AND OBJECTIVES: Controversy exists regarding the relationship between atherosclerosis and osteoporosis. The aim of this study was to determine the relationship between intima-media thickness (IMT) of the common carotid artery (CCA), presence of calcified atherosclerotic plaques and bone mineral density (BMD) evaluated by dual energy X-ray absorptiometry (DXA), in postmenopausal women. DESIGN AND SETTING: Cross-sectional study at Second Internal Medicine Clinic, Cluj-Napoca, Romania. METHODS: We studied the IMT (left and right CCA and mean IMT) and T-score (lumbar spine L2-L4, femoral neck and total hip) in 100 postmenopausal women (mean age 64.5 years). The presence of calcified atherosclerotic plaque and osteoporotic vertebral fractures was also noted. RESULTS: IMT in the left and right CCA and mean IMT were significantly associated with T-score measured for the lumbar spine L2-L4, femoral neck and total hip, with lower T-score, in the osteoporotic group than in the normal and osteopenic groups (P < 0.05). IMT had a significantly negative correlation with the lumbar spine T-score and femoral neck T-score; and mean IMT with lowest T-score. Mean IMT (P < 0.001), high blood pressure (P = 0.005) and osteoporotic vertebral fractures (P = 0.048) showed statistical significance regarding the likelihood of developing atherosclerotic plaque. CONCLUSIONS: In women referred for routine osteoporosis screening, the relationship between CCA, atherosclerosis and osteoporosis can be demonstrated using either cortical or trabecular BMD. Vertebral fractures may be considered to be a likelihood factor for atherosclerotic plaque development.


2017 ◽  
Vol 2 (3) ◽  
pp. 41-46
Author(s):  
Jimpei Miyakawa ◽  
Satoru Taguchi ◽  
Motofumi Suzuki ◽  
Kaori Endo ◽  
Yorito Nose ◽  
...  

Background: While semiannual 60 mg denosumab is a common treatment for osteoporosis, impact of monthly 120 mg denosumab, the common treatment protocol for bone metastases from solid tumors, on bone metabolism is unclear.Materials and Methods: We reviewed 15 patients with bone-metastatic prostate cancer who initiated monthly 120 mg denosumab in conjunction with androgen deprivation therapy between 2013 and 2014. Bone mineral density (BMD) was measured at lumbar spine and femoral neck using dual energy X-ray absorptiometry (DXA), before treatment and annually thereafter. Bone metabolism markers, including urine N-terminal telopeptide (uNTx) and bone type alkaline phosphatase (BAP), were monitored monthly.Results: Twelve of 15 (80%) patients had evaluable DXA before treatment, and of them, eight underwent DXA after a year of initiation without discontinuation of denosumab. Percent changes in BMD from baseline were +6.2% at lumbar spine and +7.6% at femoral neck, both of which were significant increases (both P<0.01). Bone metabolism markers were evaluable in 11 (73%) patients: uNTx decreased rapidly, while BAP declined gradually after initiating denosumab. These effects were similar to those seen by the standardized dose for osteoporosis in previous literature. There were no denosumab-related severe adverse events during the follow-up period. Conclusions: The impact of monthly 120 mg denosumab on bone metabolism was significant, but almost equivalent to that of the standard dose for osteoporosis (60mg semiannually) in bone-metastatic prostate cancer undergoing androgen deprivation therapy. Whereas the higher dose has reportedly reduced skeleton-related events, the effect on bone metabolism seemed plateaued or showed no dose-dependency.


2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Yuta Yamaguchi ◽  
Takayoshi Morita ◽  
Atsushi Kumanogoh

Abstract Objective Prevention of steroidal osteoporosis is an important issue. There is no clear consensus on the impact of anti-RANKL antibody (denosumab) on BMD in patients with glucocorticoid-induced osteoporosis (GIO). In this study, we aimed to evaluate the impact of denosumab on BMD loss in patients with GIO. Methods A comprehensive systematic review and meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. PubMed, Web of Science and Google Scholar were used to search for original studies reported about BMD in patients with GIO treated with denosumab. In meta-analysis of BMD, the mean difference in the rate of change from baseline and the 95% CI were calculated using the random effects model. The mean differences in patients treated with denosumab were compared with those in patients treated with bisphosphonates. Results Out of 713 studies identified, seven studies met the selection criteria for the meta-analysis. At 6 and 12 months of denosumab therapy, increases in BMD were observed in the lumbar spine (2.99% [95% CI 2.71, 3.28] and 4.59% [95% CI 4.17, 5.01]), total hip (1.34% [95% CI 0.64, 2.04] and 2.16% [95% CI 2.05, 2.27]) and femoral neck (0.12% [95% CI −0.38, 0.62] and 1.55% [95% CI 0.45, 2.65]). Additionally, denosumab resulted in significant increases in BMD in the lumbar spine and femoral neck at 12 months compared with bisphosphonate therapy. Conclusion Patients with GIO experienced significant increases in BMD in response to treatment with denosumab that were detected in the lumbar spine, total hip and femoral neck at 12 months.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 2253-2253 ◽  
Author(s):  
Andrew C. Grigg ◽  
Peter Shuttleworth ◽  
John Reynolds ◽  
Jeff Szer ◽  
Anthony P. Schwarer ◽  
...  

Abstract We and others have demonstrated that substantial loss of bone mineral density (BMD) is very common following alloBMT, in part due to prolonged use of glucocorticoids. Intravenous (IV) pamidronate is a potent bisphosphonate with efficacy in preventing glucocorticoid-induced bone loss in the non-BMT setting. 116 alloBMT recipients were randomised at 5 institutions to receive pamidronate 90mg IV monthly from day-7 to one year post-transplant (n=63) or no pamidronate (n=53) in an open label, prospective, controlled trial. All patients received oral vitamin D and calcium supplements and all women also received hormone therapy with an oestrogen and progestin. The primary end-point was the reduction in bone loss from the lumbar spine, femoral neck and total hip at 12 months post BMT. Age, sex and conditioning regimen (total body irradiation versus chemotherapy only) were not significantly different between the groups. 37 patients were not evaluable, predominantly due to early death (n=29) or protocol violations (n=4). Significant reductions in BMD loss at 12 months were seen in all 3 evaluated sites in patients treated with pamidronate. Site No pamidronate Pamidronate p value n % change* n % change* *percentage change in BMD at 12 months Lumbar Spine 28 −3.77 46 2.53 <.0001 Femoral neck 27 −9.33 45 2.82 <.0001 Total Hip 23 −8.35 38 −3.32 .0072 There were no significant differences in the 12-month changes associated with age class (<30, 30–40, 40–50, >50 years) or sex. In preliminary analyses of steroid dose subgroups, statistically significant improvements in BMD loss were found in patients whose average daily equivalent prednisolone dosage in the first six months post transplant was i) >25mg for all sites and ii) 10–25mg daily for the lumbar spine. We conclude that prophylactic pamidronate significantly reduces bone loss from the spine and hip after alloBMT. The impact on clinically relevant endpoints such as the subsequent incidence of fractures and avascular necrosis in these patients will determine the utility of this intervention.


BMJ Open ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. e028603
Author(s):  
Lich T Nguyen ◽  
Vinh N Pham ◽  
Phuong M N Chau ◽  
Lan T Ho-Pham ◽  
Tuan V Nguyen

ObjectivesThe association between osteoporosis and atherosclerosis remains controversial. We sought to define the relationship between carotid intima-media thickness and bone mineral density (BMD) in individuals of Vietnamese background.Design and settingCross-sectional study in Ho Chi Minh City, Vietnam.ParticipantsThe study involved 1460 individuals (559 men) aged 50 years and older (average age 59 years) who were randomly recruited from the community.Outcome measuresBMD at the femoral neck and lumbar spine was measured by dual-energy X-ray absorptiometry (Hologic, Waltham, Massachusetts, USA). Carotid intima-media thickness (cIMT) was measured using a Philips Ultrasonography (HD7XE). The presence of atherosclerotic plaque was ascertained for each individual. The association between cIMT and BMD was analysed by a multiple linear regression model.ResultsIn unadjusted analysis, cIMT was positively associated with femoral neck BMD in men (p=0.005), but not in women (p=0.242). After adjusting for age, smoking, diabetes and hypertension, the association remained statistically significant in men (partial R2=0.005; p=0.015) but not in women (partial R2=0.008; p=0.369). When the analysis was limited to individuals aged 60 years and older, the association between cIMT and BMD was no longer statistically significant. There was no statistically significant association between cIMT and lumbar spine BMD in either men or women.ConclusionsIn Vietnamese individuals aged 50 years and older, there is a clinically non-significant but statistically significant association between carotid intima-media thickness and BMD in men, not in women.


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