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You are looking at 91 - 100 of 129 items for :
- Abstract: Calcium x
- Abstract: Hyperparathyroidism x
- Abstract: Osteo* x
Musculoskeletal Research Laboratory and Bone Quality and Health Assessment Centre, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, Hong Kong
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Department of Endocrinology, The First Affiliated Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
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Background
Primary hypertrophic osteoarthropathy (PHO) is a rare genetic multi-organic disease characterized by digital clubbing, periostosis and pachydermia. Two genes, HPGD and SLCO2A1, which encodes 15-hydroxyprostaglandin dehydrogenase (15-PGDH) and prostaglandin transporter (PGT), respectively, have been reported to be related to PHO. Deficiency of aforementioned two genes leads to failure of prostaglandin E2 (PGE2) degradation and thereby elevated levels of PGE2. PGE2 plays an important role in tumorigenesis. Studies revealed a tumor suppressor activity of 15-PGDH in tumors, such as lung, bladder and breast cancers. However, to date, no HPGD-mutated PHO patients presenting concomitant tumor has been documented. In the present study, we reported the first case of HPGD-mutated PHO patient with soft tissue giant tumors at lower legs and evaluated the efficacy of selective COX-2 inhibitor (etoricoxib) treatment in the patient.
Methods
In this study, we summarized the clinical data, collected the serum and urine samples for biochemical test and analyzed the HPGD gene in our patient.
Results
A common HPGD mutation c.310_311delCT was identified in the patient. In addition to typical clinical features (digital clubbing, periostosis and pachydermia), the patient demonstrated a new clinical manifestation, a giant soft tissue tumor on the left lower leg which has not been reported in HPGD-mutated PHO patient before. After 6-month treatment with etoricoxib, the patient showed decreased PGE2 levels and improved PHO-related symptoms. Though the soft tissue tumor persisted, it seemed to be controlled under the etoricoxib treatment.
Conclusion
This finding expanded the clinical spectrum of PHO and provided unique insights into the HPGD-mutated PHO.
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Medical Clinic V (Nephrology, Hypertensiology, Rheumatology, Endocrinology, Diabetology), Medical Faculty Mannheim, Ruperto-Carola University of Heidelberg, Heidelberg, Germany
Synlab Medical Center of Human Genetics Mannheim, Mannheim, Germany
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Vitamin D testing and treatment is a subject of controversial scientific discussions, and it is challenging to navigate through the expanding vitamin D literature with heterogeneous and partially opposed opinions and recommendations. In this narrative review, we aim to provide an update on vitamin D guidelines and the current evidence on the role of vitamin D for human health with its subsequent implications for patient care and public health issues. Vitamin D is critical for bone and mineral metabolism, and it is established that vitamin D deficiency can cause rickets and osteomalacia. While many guidelines recommend target serum 25-hydroxyvitamin D (25[OH]D) concentrations of ≥50 nmol/L (20 ng/mL), the minimum consensus in the scientific community is that serum 25(OH)D concentrations below 25–30 nmol/L (10–12 ng/mL) must be prevented and treated. Using this latter threshold of serum 25(OH)D concentrations, it has been documented that there is a high worldwide prevalence of vitamin D deficiency that may require public health actions such as vitamin D food fortification. On the other hand, there is also reason for concern that an exploding rate of vitamin D testing and supplementation increases costs and might potentially be harmful. In the scientific debate on vitamin D, we should consider that nutrient trials differ from drug trials and that apart from the opposed positions regarding indications for vitamin D treatment we still have to better characterize the precise role of vitamin D for human health.
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Reference Center for Rare Disorders of Calcium and Phosphate Metabolism, Le Kremlin Bicêtre, France
Plateforme d’Expertise Paris Sud Maladies Rares and Filière OSCAR, Bicêtre Paris Sud, Le Kremlin Bicêtre, France
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Reference Center for Rare Disorders of Calcium and Phosphate Metabolism, Le Kremlin Bicêtre, France
Plateforme d’Expertise Paris Sud Maladies Rares and Filière OSCAR, Bicêtre Paris Sud, Le Kremlin Bicêtre, France
INSERM U1169, Hôpital Bicêtre, Le Kremlin Bicêtre, et Université Paris-Saclay, Le Kremlin Bicêtre, France
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APHP, Department of Pediatric Orthopedic Surgery, Necker Hospital, Paris, France
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Background
X-linked hypophosphatemic rickets (XLHR) is due to mutations in PHEX leading to unregulated production of FGF23 and hypophosphatemia. XLHR is characterized by leg bowing of variable severity. Phosphate supplements and oral vitamin analogs, partially or, in some cases, fully restore the limb straightness. Surgery is the alternative for severe or residual limb deformities.
Objective
To retrospectively assess the results of surgical limb correction in XLHR (osteotomies and bone alignment except for 3 transient hemiepiphysiodesis).
Methods
We analyzed the incidence of recurrence and post-surgical complications in 49 XLHR patients (29F, 20M) (mean age at diagnosis 6.0 years (± 7.1)).
Results
At first surgery, the mean age was 13.4 years (± 5.0). Recurrence was observed in 14/49 (29%) patients. The number of additional operations significantly decreased with age (2.0 (± 0.9), 1.7 (± 1.0) and 1.2 (± 0.4) in children <11 years, between 11 and 15, and >15 years; P < 0.001). Incidence of recurrence seemed to be lower in patients with good metabolic control of the rickets (25% vs 33%). Complications were observed in 57% of patients.
Conclusion
We report a large series of surgical procedures in XLHR. Our results confirm that phosphate supplements and vitamin D analog therapy is the first line of treatment to correct leg bowing. Surgery before puberty is associated with a high risk of recurrence of the limb deformity. Such procedures should only be recommended, following multidisciplinary discussions, in patients with severe distortion leading to mechanical joint and ligament complications, or for residual deformities once growth plates have fused.
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Objective
Although surgical menopause may increase the risks of osteoporosis, few studies have investigated the influence of chemotherapy and radiation therapy. The aim of this study is to evaluate the effects of treatments for gynecological malignancies on bone mineral density (BMD).
Methods
This study enrolled 35 premenopausal women (15 ovarian cancers (OCs), 9 endometrial cancers (ECs), and 11 cervical cancers (CCs)) who underwent surgical treatment that included bilateral oophorectomy with or without adjuvant platinum-based chemotherapy in OC and EC patients, or concurrent chemo-radiation therapy (CCRT) in CC patients according to the established protocols at the Osaka Medical College Hospital between 2006 and 2008. The BMD of the lumbar spine (L1–L4) was measured by dual-energy X-ray absorptiometry, and urine cross-linked telopeptides of type I collagen (NTx) and bone alkaline phosphatase (BAP) were assessed for evaluation of bone resorption and bone formation respectively. These assessments were performed at baseline and 12 months after treatment.
Results
Although the serum BAP was significantly increased only in the CC group, a rapid increase in the bone resorption marker urinary NTx was observed in all groups. The BMD, 12 months after CCRT was significantly decreased in the CC group at 91.9±5.9% (P<0.05 in comparison to the baseline).
Conclusion
This research suggests that anticancer therapies for premenopausal women with gynecological malignancies increase bone resorption and may reduce BMD, particularly in CC patients who have received CCRT. Therefore, gynecologic cancer survivors should be educated about these potential risks and complications.
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Endocrine Unit, Department of Medicine, Endocrine Unit, Faculty of Health Sciences, Department of Medicine O, Herlev University Hospital, Herlev Ringvej, DK-2730 Herlev, Denmark
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Background
A recent randomized controlled trial suggests that hypothyroid subjects may find levothyroxine (l-T4) and levotriiodothyronine combination therapy to be superior to l-T4 monotherapy in terms of quality of life, suggesting that the brain registered increased T3 availability during the combination therapy.
Hypothesis
Peripheral tissue might also be stimulated during T4/T3 combination therapy compared with T4 monotherapy.
Methods
Serum levels of sex hormone-binding globulin (SHBG), pro-collagen-1-N-terminal peptide (PINP), and N-terminal pro-brain natriuretic peptide (NT-proBNP) (representing hepatocyte, osteoblast, and cardiomyocyte stimulation respectively) were measured in 26 hypothyroid subjects in a double-blind, randomized, crossover trial, which compared the replacement therapy with T4/T3 in combination (50 μg T4 was substituted with 20 μg T3) to T4 alone (once daily regimens). This was performed to obtain unaltered serum TSH levels during the trial and between the two treatment groups. Blood sampling was performed 24 h after the last intake of thyroid hormone medication.
Results
TSH remained unaltered between the groups ((median) 0.83 vs 1.18 mU/l in T4/T3 combination and T4 monotherapy respectively; P=0.534). SHBG increased from (median) 75 nmol/l at baseline to 83 nmol/l in the T4/T3 group (P=0.015) but remained unaltered in the T4 group (67 nmol/l); thus, it was higher in the T4/T3 vs T4 group (P=0.041). PINP levels were higher in the T4/T3 therapy (48 vs 40 μg/l (P<0.001)). NT-proBNP did not differ between the groups.
Conclusions
T4/T3 combination therapy in hypothyroidism seems to have more metabolic effects than the T4 monotherapy.
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Objective
The study aimed to assess the possible systemic effects of intratympanic dexamethasone (IT-Dex) on the hypothalamic–pituitary–adrenal (HPA) axis, inflammation, and bone metabolism.
Design
A prospective cohort study including 30 adult patients of a tertiary referral ENT clinic treated with 9.6 mg IT-Dex over a period of 10 days was carried out.
Methods
Effects on plasma and salivary cortisol concentrations (basal and after low-dose (1 μg) ACTH stimulation), peripheral white blood cell count, and biomarkers for bone turnover were measured before (day 0) and after IT-Dex (day 16). Additional measurements for bone turnover were performed 5 months after therapy. Clinical information and medication with possible dexamethasone interaction were recorded.
Results
IT-Dex was well tolerated, and no effect was detected on the HPA axis (stimulated plasma and salivary cortisol concentration on day 0: 758±184 and 44.5±22.0 nmol/l; day 16: 718±154 and 39.8±12.4 nmol/l; P=0.58 and 0.24 respectively). Concentrations of osteocalcin (OC) and bone-specific alkaline phosphatase (BSAP) did not differ after dexamethasone (OC on days 0 and 16 respectively: 24.1±10.5 and 23.6±8.8 μg/l; BSAP on day 0, 16, and after 5 months respectively: 11.5±4.2, 10.3±3.4, and 12.6±5.06 μg/l); similarly, there was no difference in the peripheral white blood cell count (5.7×1012/l and 6.1×1012/l on days 0 and 16 respectively).
Conclusions
IT-Dex therapy did not interfere with endogenous cortisol secretion or bone metabolism.
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Alendronate (ALN) is a commonly used drug for the treatment of osteoporosis. Atypical femur fractures (AFFs) have been associated with long-term use of ALN and have recently become the subject of considerable attention as ALN use increases. This meta-analysis aimed to determine the relationship between ALN and AFF. The Embase, PubMed, and Cochrane library databases were searched for relevant studies published before November 6, 2014. Studies clearly reporting the relationship between ALN and AFF were selected for our analysis. From these results, the relationship between ALN and AFF was analyzed. Weighted mean differences were calculated using a random-effects model. Five studies were included in this meta-analysis. The results revealed that the use of ALN will not increase the risk of AFF in short term (P>0.05), but there will be a risk of AFF (P<0.05) with long-term (>5 years) use of ALN. These findings indicate that long-term use of ALN is a risk factor for AFF and that more attention should be paid to the clinical applications of ALN.
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Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
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Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
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Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
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Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
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Despite aggressive treatment of cardiovascular disease (CVD) risk factors individuals with type 2 diabetes (T2D) still have increased risk of cardiovascular morbidity and mortality. The primary aim of this study was to examine the cross-sectional association between total (25-hydroxy vitamin D (25(OH)D)) and risk of CVD in patients with T2D. Secondary objective was to examine the association between 25(OH)D and bone health. A Danish cohort of patients with T2D participating in a randomised clinical trial were analysed. In total 415 patients (68% men, age 60±9 years (mean±s.d.), duration of diabetes 12±6 years), including 294 patients (71%) treated with insulin. Carotid intima–media thickness (IMT) and arterial stiffness (carotid artery distensibility coefficient (DC) and Young's elastic modulus (YEM)) were measured by ultrasound scan as indicators of CVD. Bone health was assessed by bone mineral density and trabecular bone score measured by dual energy X-ray absorptiometry. In this cohort, 214 patients (52%) were vitamin D deficient (25(OH)D <50 nmol/l). Carotid IMT was 0.793±0.137 mm, DC was 0.0030±0.001 mmHg, YEM was 2354±1038 mmHg and 13 (3%) of the patients were diagnosed with osteoporosis. A 25(OH)D level was not associated with carotid IMT or arterial stiffness (P>0.3) or bone health (P>0.6) after adjustment for CVD risk factors. In conclusion, 25(OH)D status was not associated with carotid IMT, arterial stiffness or bone health in this cohort of patients with T2D. To explore these associations and the association with other biomarkers further, multicentre studies with large numbers of patients are required.
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Department of Cell Biology and Anatomy, Department of Medicine, Turku PET Centre, Department of Radiology, Medical Imaging Centre of Southwest Finland, Department of Endocrinology, Abdominal Center: Endocrinology, Minerva Foundation Institute for Medical Research, Institute of Biomedicine, University of Turku, FI-20520 Turku, Finland
Department of Cell Biology and Anatomy, Department of Medicine, Turku PET Centre, Department of Radiology, Medical Imaging Centre of Southwest Finland, Department of Endocrinology, Abdominal Center: Endocrinology, Minerva Foundation Institute for Medical Research, Institute of Biomedicine, University of Turku, FI-20520 Turku, Finland
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Department of Cell Biology and Anatomy, Department of Medicine, Turku PET Centre, Department of Radiology, Medical Imaging Centre of Southwest Finland, Department of Endocrinology, Abdominal Center: Endocrinology, Minerva Foundation Institute for Medical Research, Institute of Biomedicine, University of Turku, FI-20520 Turku, Finland
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Department of Cell Biology and Anatomy, Department of Medicine, Turku PET Centre, Department of Radiology, Medical Imaging Centre of Southwest Finland, Department of Endocrinology, Abdominal Center: Endocrinology, Minerva Foundation Institute for Medical Research, Institute of Biomedicine, University of Turku, FI-20520 Turku, Finland
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Insulin signaling in bone-forming osteoblasts stimulates bone formation and promotes the release of osteocalcin (OC) in mice. Only a few studies have assessed the direct effect of insulin on bone metabolism in humans. Here, we studied markers of bone metabolism in response to acute hyperinsulinemia in men and women. Thirty-three subjects from three separate cohorts (n=8, n=12 and n=13) participated in a euglycaemic hyperinsulinemic clamp study. Blood samples were collected before and at the end of infusions to determine the markers of bone formation (PINP, total OC, uncarboxylated form of OC (ucOC)) and resorption (CTX, TRAcP5b). During 4 h insulin infusion (40 mU/m2 per min, low insulin), CTX level decreased by 11% (P<0.05). High insulin infusion rate (72 mU/m2 per min) for 4 h resulted in more pronounced decrease (−32%, P<0.01) whereas shorter insulin exposure (40 mU/m2 per min for 2 h) had no effect (P=0.61). Markers of osteoblast activity remained unchanged during 4 h insulin, but the ratio of uncarboxylated-to-total OC decreased in response to insulin (P<0.05 and P<0.01 for low and high insulin for 4 h respectively). During 2 h low insulin infusion, both total OC and ucOC decreased significantly (P<0.01 for both). In conclusion, insulin decreases bone resorption and circulating levels of total OC and ucOC. Insulin has direct effects on bone metabolism in humans and changes in the circulating levels of bone markers can be seen within a few hours after administration of insulin.
Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
Service d'Endocrinologie et Diabétologie de l'Enfant, Service de Pédiatrie générale – Consultation de rhumatologie, Service d'Endocrinologie et des Maladies de la Reproduction, Service d'ORL et chirurgie cervico-maxillo-faciale, Université Paris 11, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphore, Service d'Odontologie-Maladies Rares Hôpital Bretonneau 2 rue Carpeaux, Université Paris Descartes 12 Rue de l'École de Médecine, Service Rhumatologie B Hôpital Cochin, Centre de Référence des Maladies Rares des Maladies Auto-Inflammatoires Rares de l'Enfant, Service d'explorations fonctionnelles rénales, Service de Chirurgie infantile orthopédique, Association de patients RVRH-XLH, Hôpital Bicêtre, APHP, 78 rue du Général Leclerc, 94270 Le Kremlin Bicêtre, France
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In children, hypophosphatemic rickets (HR) is revealed by delayed walking, waddling gait, leg bowing, enlarged cartilages, bone pain, craniostenosis, spontaneous dental abscesses, and growth failure. If undiagnosed during childhood, patients with hypophosphatemia present with bone and/or joint pain, fractures, mineralization defects such as osteomalacia, entesopathy, severe dental anomalies, hearing loss, and fatigue. Healing rickets is the initial endpoint of treatment in children. Therapy aims at counteracting consequences of FGF23 excess, i.e. oral phosphorus supplementation with multiple daily intakes to compensate for renal phosphate wasting and active vitamin D analogs (alfacalcidol or calcitriol) to counter the 1,25-diOH-vitamin D deficiency. Corrective surgeries for residual leg bowing at the end of growth are occasionally performed. In absence of consensus regarding indications of the treatment in adults, it is generally accepted that medical treatment should be reinitiated (or maintained) in symptomatic patients to reduce pain, which may be due to bone microfractures and/or osteomalacia. In addition to the conventional treatment, optimal care of symptomatic patients requires pharmacological and non-pharmacological management of pain and joint stiffness, through appropriated rehabilitation. Much attention should be given to the dental and periodontal manifestations of HR. Besides vitamin D analogs and phosphate supplements that improve tooth mineralization, rigorous oral hygiene, active endodontic treatment of root abscesses and preventive protection of teeth surfaces are recommended. Current outcomes of this therapy are still not optimal, and therapies targeting the pathophysiology of the disease, i.e. FGF23 excess, are desirable. In this review, medical, dental, surgical, and contributions of various expertises to the treatment of HR are described, with an effort to highlight the importance of coordinated care.
