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  1. Article ; Online: Efficacy of switching from teriparatide to zoledronic acid or denosumab on bone mineral density and biochemical markers of bone turnover in older patients with severe osteoporosis: a real-life study.

    Dito, Giorgia / Lugaresi, Marina / Degradi, Chiara / Guabello, Gregorio / Longhi, Matteo / Corbetta, Sabrina

    Endocrine

    2023  Volume 82, Issue 1, Page(s) 181–189

    Abstract: Purpose: Osteoporosis is characterized by loss of bone mass and susceptibility to fracture. Skeletal effects of teriparatide (TPT) are not persistent after drug withdrawal and sequential therapy with bisphosphonates or denosumab (Dmab) after TPT ... ...

    Abstract Purpose: Osteoporosis is characterized by loss of bone mass and susceptibility to fracture. Skeletal effects of teriparatide (TPT) are not persistent after drug withdrawal and sequential therapy with bisphosphonates or denosumab (Dmab) after TPT discontinuation represents a valid option. Here, the two sequential strategies were evaluated in severe osteoporotic patients.
    Methods: The study retrospectively enrolled 56 severe osteoporotic patients who received TPT for 24 months followed by 24 months of zoledronic acid (ZOL) (TPT + ZOL) or Dmab (TPT+Dmab). Clinical features, incident fractures, bone mineral density (BMD) measurements, and bone marker profiles were collected. One-way ANOVA analyzed the difference between mean T-scores at baseline, after 24 months of TPT, and after 2 doses of ZOL or after at least 3 doses of Dmab.
    Results: Twenty-three patients received TPT + ZOL (19 females, 4 males; median [IR] age, 74.3 [66.9, 78.6] years) and 33 patients received TPT+Dmab (31 females, 2 males; mean [IR] age, 66.6 ± 11.3 years). Mean lumbar and hip T-scores were increased after both TPT + ZOL and TPT+Dmab (all p < 0.05 vs baseline). The size effects induced by TPT + ZOL on the lumbar and hip BMD T-scores were similar to those observed with TPT+Dmab with mean T-scores increases of about 1 and 0.4 SD, respectively. No significant between-group differences were identified. Incident fragility fractures occurred in 3 (13%) patients treated with TPT + ZOL and in 5 (15%) patients treated with TPT+Dmab.
    Conclusions: Sequential TPT + ZOL therapy is likely to increase bone mineralization at the lumbar level and to stabilize it at the femoral level, similarly to what obtained with the sequential TPT+Dmab. Both ZOL and Dmab are suggested to be effective sequential treatments after TPT.
    MeSH term(s) Male ; Female ; Humans ; Aged ; Middle Aged ; Zoledronic Acid/therapeutic use ; Zoledronic Acid/pharmacology ; Teriparatide/adverse effects ; Bone Density ; Denosumab/adverse effects ; Bone Density Conservation Agents/adverse effects ; Retrospective Studies ; Osteoporosis/drug therapy ; Osteoporosis/chemically induced ; Diphosphonates/adverse effects ; Fractures, Bone/chemically induced ; Bone Remodeling ; Biomarkers
    Chemical Substances Zoledronic Acid (6XC1PAD3KF) ; Teriparatide (10T9CSU89I) ; Denosumab (4EQZ6YO2HI) ; Bone Density Conservation Agents ; Diphosphonates ; Biomarkers
    Language English
    Publishing date 2023-07-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1194484-5
    ISSN 1559-0100 ; 1355-008X ; 0969-711X
    ISSN (online) 1559-0100
    ISSN 1355-008X ; 0969-711X
    DOI 10.1007/s12020-023-03431-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Hypercalciuria in Postmenopausal Women With Reduced Bone Mineral Density Is Associated With Different Mineral Metabolic Profiles: Effects of Treatment With Thiazides and Anti-resorptives.

    Nicoli, Federico / Dito, Giorgia / Guabello, Gregorio / Longhi, Matteo / Corbetta, Sabrina

    Frontiers in medicine

    2021  Volume 8, Page(s) 780087

    Abstract: Hypercalciuria may represent a challenge during the workup for osteoporosis management. The present study aimed: (1) to describe the phenotype associated with hypercalciuria in vitamin D-sufficient (serum 25 hydroxyvitamin D (25OHD) > 20 ng/ml) patients ... ...

    Abstract Hypercalciuria may represent a challenge during the workup for osteoporosis management. The present study aimed: (1) to describe the phenotype associated with hypercalciuria in vitamin D-sufficient (serum 25 hydroxyvitamin D (25OHD) > 20 ng/ml) patients with osteopenia/osteoporosis; (2) to analyze the effects of thiazides and anti-resorptive drugs on urine calcium excretion (UCa), mineral metabolic markers, and bone mineral density. Seventy-seven postmenopausal women with hypercalciuria (Uca > 4.0 mg/kg body weight/24 h on two determinations) were retrospectively evaluated in a real-life setting. Median UCa was 5.39 (4.75-6.70) mg/kg/24 h. Kidney stones occurred in 32.9% of patients, who had median UCa similar to that of patients without kidney stones. Clustering analysis considering the three variables, such as serum calcium, phosphate, and parathormone (PTH), identified two main clusters of hypercalciuric patients. Cluster 1 (
    Language English
    Publishing date 2021-12-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2775999-4
    ISSN 2296-858X
    ISSN 2296-858X
    DOI 10.3389/fmed.2021.780087
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Evaluating adherence, tolerability and safety of oral calcium citrate in elderly osteopenic subjects: a real-life non-interventional, prospective, multicenter study.

    Rondanelli, Mariangela / Minisola, Salvatore / Barale, Marco / Barbaro, Daniele / Mansueto, Francesca / Battaglia, Santina / Bonaccorsi, Gloria / Caliri, Santina / Cavioni, Alessandro / Colangelo, Luciano / Corbetta, Sabrina / Coretti, Federica / Dito, Giorgia / Gavioli, Valentina / Ghigo, Ezio / Giannattasio, Raffaele / Lapi, Paola / Maiorana, Blas / Marra, Costanza /
    Mazzantini, Maurizio / Morini, Elisabetta / Nannipieri, Fabrizio / Nuzzo, Vincenzo / Parri, Fabiana / Perna, Simone / Santori, Rachele / Procopio, Massimo

    Aging clinical and experimental research

    2024  Volume 36, Issue 1, Page(s) 38

    Abstract: Background: Osteoporosis is a common concern in the elderly that leads to fragile bones. Calcium supplementation plays a crucial role in improving bone health, reducing fracture risk, and supporting overall skeletal strength in this vulnerable ... ...

    Abstract Background: Osteoporosis is a common concern in the elderly that leads to fragile bones. Calcium supplementation plays a crucial role in improving bone health, reducing fracture risk, and supporting overall skeletal strength in this vulnerable population. However, there is conflicting evidence on the safety of calcium supplements in elderly individuals.
    Aim: The aim of this study was to evaluate the adherence, safety and tolerability of calcium citrate supplementation in elderly osteopenic subjects.
    Methods: In this non-interventional, prospective, multicenter study, subjects received daily 500 mg calcium citrate supplementation for up to one year. Adherence was calculated based on compliance and persistence. Safety was assessed through adverse reactions (ARs), deaths, and clinical laboratory evaluations.
    Results: A total of 268 Caucasian subjects (91.4% female, mean age 70 ± 4.5 years) participated in the study. Mean adherence to treatment was 76.6 ± 29.5% and half of subjects had an adherence of 91% and ~ 33% of participants achieved complete (100%) adherence. ARs were reported by nine (3.9%) subjects, primarily gastrointestinal disorders, with no serious ARs. The frequency of all adverse events (including ARs) was significantly higher in subjects with adherence of < 80% (41.6%; 32/77) vs. those with adherence ≥ 80% (11%; 16/145, p < 0.0001). Both systolic and diastolic blood pressure decreased from baseline to follow-up visit (change of -2.8 ± 13.9 mmHg, p = 0.0102 and -2.1 ± 10.4 mmHg, p = 0.0116, respectively).
    Conclusion: This study demonstrated favorable adherence to calcium citrate supplementation in elderly osteopenic subjects. The occurrence of ARs, though generally mild, were associated with lower adherence to calcium supplementation.
    MeSH term(s) Humans ; Female ; Aged ; Male ; Calcium Citrate/adverse effects ; Calcium ; Prospective Studies ; Osteoporosis/drug therapy ; Calcium, Dietary ; Dietary Supplements/adverse effects
    Chemical Substances Calcium Citrate (MLM29U2X85) ; Calcium (SY7Q814VUP) ; Calcium, Dietary
    Language English
    Publishing date 2024-02-12
    Publishing country Germany
    Document type Multicenter Study ; Journal Article
    ZDB-ID 2104785-6
    ISSN 1720-8319 ; 1594-0667
    ISSN (online) 1720-8319
    ISSN 1594-0667
    DOI 10.1007/s40520-024-02696-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Estimated glomerular filtration rate by serum cystatin C correlates with cardiometabolic parameters in patients with primary hyperparathyroidism.

    Ermetici, Federica / Filopanti, Marcello / Verga, Uberta / Passeri, Elena / Dito, Giorgia / Malavazos, Alexis Elias / Mapelli, Chiara / Raggi, Maria Elisabetta / Spada, Anna / Corbetta, Sabrina

    European journal of endocrinology

    2015  Volume 173, Issue 4, Page(s) 441–446

    Abstract: Objective: Patients with primary hyperparathyroidism (PHPT) are at risk of chronic kidney disease (CKD). Cystatin C (Cys-C) is considered a more reliable tool to assess glomerular filtration rate (GFR) than creatinine. The study aimed to assess ... ...

    Abstract Objective: Patients with primary hyperparathyroidism (PHPT) are at risk of chronic kidney disease (CKD). Cystatin C (Cys-C) is considered a more reliable tool to assess glomerular filtration rate (GFR) than creatinine. The study aimed to assess circulating Cys-C and its relationships with biochemical PHPT and cardiometabolic parameters.
    Design and methods: The present cross-sectional study was performed in academic endocrine units on PHPT patients (n=190) and non-hypertensive, non-diabetic, age- and sex-matched healthy controls (n=135) with no established CKD. The main outcomes were creatinine by alkaline picrate method, Cys-C by immunonephelometry and calculation of estimated GFR based on creatinine and Cys-C (eGFRcr-cys) using the CKD-EPI equation.
    Results: In PHPT patients, circulating Cys-C ranged 0.45-3.13  mg/l and correlated with creatinine, age and BMI. Mean Cys-C level was higher in PHPT patients than in controls (0.93±0.02 vs 0.78±0.14  mg/l; P=0.03). Cys-C levels in PHPT patients were predicted by age, BMI, ionized calcium, hypertension and HDL-cholesterol, the most significant determinant being ionized calcium. Cys-C positively correlated with cardiovascular disease (CVD) occurrence. Overall, 18.4% of PHPT patients with eGFRcr >60  ml/min per 1.73  m(2) (n=169) had Cys-C levels higher than the 95th percentile in controls (1.03  mg/l), consistent with a preclinical CKD, which was associated with hypertension and insulin resistance. Considering eGFRcr-cys, CKD (stages G3a, G3b, 4) was diagnosed in 13.7% of PHPT patients. Estimated GFRcr-cys, but not eGFR based on creatinine, was predicted by insulin resistance and hypertension and positively correlated with CVD.
    Conclusions: Elevated Cys-C levels were associated with ionized calcium, cardiometabolic risk factors and CVD, and identified preclinical CKD in PHPT patients.
    MeSH term(s) Age Factors ; Aged ; Biomarkers/blood ; Body Mass Index ; Calcium/blood ; Cardiovascular Diseases/blood ; Case-Control Studies ; Creatinine/blood ; Cross-Sectional Studies ; Cystatin C/blood ; Female ; Glomerular Filtration Rate ; Humans ; Hyperparathyroidism, Primary ; Hypertension/blood ; Insulin Resistance ; Male ; Middle Aged ; Renal Insufficiency, Chronic/blood ; Risk Factors
    Chemical Substances Biomarkers ; Cystatin C ; Creatinine (AYI8EX34EU) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2015-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1183856-5
    ISSN 1479-683X ; 0804-4643
    ISSN (online) 1479-683X
    ISSN 0804-4643
    DOI 10.1530/EJE-15-0341
    Database MEDical Literature Analysis and Retrieval System OnLINE

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