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1.
Disabil Rehabil ; : 1-10, 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38841844

RESUMO

PURPOSE: The aim of this qualitative study was to investigate resilience among adults with Osteogenesis Imperfecta (OI). MATERIALS AND METHODS: Semi-structured interviews were conducted with 15 adults with OI. Transcripts were coded and subsequently abstracted, yielding themes specific to resilience and coping. Interview guides covered broad topics including pain challenges specific to OI, mental health issues related to OI, and priorities for future interventions for individuals with OI. RESULTS: Participants described resilience in the context of OI as the ability to grow from adversity, adapt to challenges resulting from OI-related injuries, and find identities apart from their condition. Psychological coping strategies included acceptance, self-efficacy, cognitive reframing, perspective-taking, and positivity. Behavioral factors that helped participants develop resilience included developing new skills, pursuing meaningful goals, practicing spirituality, and seeking external resources such as psychotherapy, education, and connection with community. CONCLUSION: Having identified how adults with OI define resilience and the strategies they use to cope, we can now develop interventions and guide healthcare providers in improving psychological wellbeing in this population.


Adults with Osteogenesis Imperfecta (OI) employ resilience factors to combat mobility and pain-related issues.Adults with OI report developing adaptive skills to cope with their disease, including forming one's identity outside of OI, growing through adversity, overcoming challenges resulting from OI-related injury, employing psychological adaptations, and practicing behavioral coping strategies.Resiliency factors such as behavioral and psychological coping (e.g., exercise, breathing strategies, acceptance) may buffer against OI-related challenges, and treatment modalities that foster these activities may be beneficial for adults with OI.

2.
Children (Basel) ; 11(6)2024 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-38929306

RESUMO

(1) Background: Severe primary insulin-like growth factor-I deficiency (SPIGFD) is a rare disorder causing short stature in children due to low insulin-like growth factor 1 (IGF-1) levels. Given the sparsity of reported cases of SPIGFD worldwide, the condition may be underdiagnosed, potentially preventing affected children from receiving therapy with recombinant human IGF-1 (rhIGF-1). Our objective was to determine the prevalence of SPIGFD among children with short stature at a large pediatric tertiary care center through the use of a novel electronic medical record (EMR) algorithm. (2) Methods: We queried our EMR using an algorithm that detected all children seen at our center between 1 November 2013 and 31 August 2021 with short stature and low IGF-1. We then conducted chart reviews, applying established diagnostic criteria for those identified with potential SPIGFD. (3) Results: From a cohort of 4863 children with short stature, our algorithm identified 30 (0.6%) patients with potential SPIGFD. Using chart reviews, we determined that none of these patients had SPIGFD. (4) Conclusions: Our algorithm can be used in other EMRs to identify which patients are likely to have SPIGFD and thus benefit from treatment with rhIGF-1. This model can be replicated for other rare diseases.

3.
J Pediatr Endocrinol Metab ; 37(5): 462-466, 2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38630246

RESUMO

OBJECTIVES: Prevalence of diabetes distress and mental health comorbidities among adolescents with type 1 diabetes (T1D) is high. Despite recommendations for routine psychosocial risk assessment, there is little guidance for their implementation. This study aims to describe the implementation and baseline outcomes of the Mind Youth Questionnaire (MY-Q), a validated psychosocial screening tool for health-related quality of life (QoL) including mood, among adolescents living with T1D. METHODS: Adolescents aged 13-18 years completed the MY-Q from October 1, 2019-April 1, 2023. Baseline characteristics, MY-Q results including categories flagged positive (noting possible areas of concern), debrief duration, and frequency of social work or mental health referral were collected and analyzed using descriptive statistics. RESULTS: A total of 343 adolescents (mean age 15.3 years; 52 % female) completed a baseline MY-Q. Median overall MY-Q debrief time (IQR) was 10.0 min (6.0, 20.0). About 290 (84.5 %) adolescents had at least one of seven categories flagged, most commonly "Family" (61 %). About 30 % of adolescents had "Mood" flagged, and 2.9 % of adolescents were referred to mental health following debrief. CONCLUSIONS: Without the need for additional resources, implementation of the MY-Q in a pediatric tertiary care diabetes clinic successfully identified QoL issues and mental health concerns among adolescents with T1D.


Assuntos
Diabetes Mellitus Tipo 1 , Qualidade de Vida , Centros de Atenção Terciária , Humanos , Adolescente , Diabetes Mellitus Tipo 1/psicologia , Feminino , Masculino , Inquéritos e Questionários , Programas de Rastreamento/métodos , Seguimentos , Prognóstico
4.
Bone Rep ; 20: 101725, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38229908

RESUMO

Cutaneous-skeletal hypophosphatemia syndrome (CSHS) is a rare bone disorder featuring fibroblast growth factor-23 (FGF23)-mediated hypophosphatemic rickets. We report a 2-year, 10-month-old girl with CSHS treated with burosumab, a novel human monoclonal antibody targeting FGF23. This approach was associated with rickets healing, improvement in growth and lower limb deformity, and clinically significant benefit to her functional mobility and motor development. This case report provides evidence for the effective use of FGF23-neutralizing antibody therapy beyond the classic FGF23-mediated disorders of X-linked hypophosphatemia and tumor-induced osteomalacia.

5.
Horm Res Paediatr ; 2024 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-38211570

RESUMO

Metabolic bone disease of prematurity (MBDP) is defined by undermineralization of the preterm infant skeleton arising from inadequate prenatal and postnatal calcium (Ca) and phosphate (PO4) accretion. Severe MBDP can be associated with rickets and fractures. Despite advances in neonatal nutrition, MBDP remains prevalent in premature infants due to inadequate mineral accretion ex-utero. There also remain significant knowledge gaps regarding best practices for monitoring and treatment of MBDP among neonatologists and pediatric endocrinologists. Preventing and treating MBDP can prevent serious consequences including rickets or pathologic fractures. Postnatal monitoring to facilitate early recognition of MBDP is best done by first-tier laboratory screening by measuring serum calcium, phosphorus, and alkaline phosphatase to identify infants at risk. If these labs are abnormal, further studies including assessing parathyroid hormone and/or tubular resorption of phosphate can help differentiate between Ca and PO4 deficiency as primary etiologies to guide appropriate treatment with mineral supplements. Additional research into optimal mineral supplementation for the prevention and treatment of MBDP is needed to improve long-term bone health outcomes and provide a fuller evidence base for future treatment guidelines.

6.
Artigo em Inglês | MEDLINE | ID: mdl-38281305

RESUMO

Osteogenesis imperfecta (OI) is a genetic disorder characterized by bone fragility and fractures, short stature, dental abnormalities, hearing loss, scoliosis, and chronic pain. Despite a growing literature on the functional outcomes of OI, limited research has explicitly examined the psychosocial outcomes of pain within OI. Adults with OI (N = 15) were interviewed to understand pain-related experiences through a thematic analysis of semi-structured interview data. Research team members, genetic research experts, and OI clinicians developed an interview guide focused on topics related to pain and mental health challenges. Participants' transcripts were coded by two independent coders; codes were then merged across coders and quotation outputs were subsequently abstracted (paraphrased then thematically classified) to identify common themes. Themes related to pain management variability regarding pain type, pain risk management and accessibility, pain outcomes (e.g., behavior, cognitive, affective), and pain exacerbating factors (e.g., individual, contextual) were identified. Participants reported chronic and acute pain, and despite the inaccessibility and stigmatization of pain medications (e.g., opioids), pharmacological treatments were the most common pain management approach. Participants reported negative pain outcomes, such as limited daily functioning and activity participation, fear, anger, anxiety, depression, and difficulty concentrating. Lastly, participants suggested that lack of physician and community knowledge on chronic pain in OI indirectly exacerbates both subjective pain intensity and outcomes. Although limited by a small, nondiverse sample, the current study provides valuable exploration of the unique pain experiences of adults with OI that may have implications for proactive management, treatment development, and clinician training.

7.
J Clin Endocrinol Metab ; 109(2): 536-548, 2024 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-37610420

RESUMO

PURPOSE: Prevention of fractures is an unmet need in glucocorticoid (GC)-treated Duchenne muscular dystrophy. This study explored factors associated with incident vertebral fractures (VFs) to inform future fracture prevention efforts. METHODS: VFs were evaluated prospectively at study baseline and 12 months on lateral spine radiographs in participants aged 4 to 25 years with Duchenne muscular dystrophy. Clinical factors were analyzed for their association with the change in Spinal Deformity Index (sum of the Genant-defined VF grades from T4 to L4) between baseline and 12 months. RESULTS: Thirty-eight males were evaluated (mean ± SD age at baseline 11.0 ± 3.6 years; mean ± SD GC duration at baseline 4.1 ± 3.1 years; 74% ambulatory). Nine of 38 participants (24%) had 17 incident VFs, of which 3/17 VFs (18%) were moderate/severe. Participants with 12-month incident VF had lower mean ± SD baseline lumbar spine areal bone mineral density Z-scores (-2.9 ± 1.0 vs -1.9 ± 1.1; P = .049) and lower total body less head areal bone mineral density Z-scores (-3.1 ± 1.2 vs -1.6 ± 1.7; P = .036). Multivariable linear regression showed that at least 1 VF at baseline (P < .001), a higher number of antecedent non-VF (P < .001), and greater bone age delay at baseline (P = .027) were significant predictors of an increase in the Spinal Deformity Index from baseline to 12 months. CONCLUSION: The observation that ≥ 1 prevalent VF and/or non-VF were the strongest predictors of incident VFs at 12 months supports the need for prevention of first fractures in this high-risk setting. Bone age delay, a marker of GC exposure, may assist in the prioritization of patients in efforts to prevent first fractures.


Assuntos
Fraturas Ósseas , Distrofia Muscular de Duchenne , Fraturas por Osteoporose , Fraturas da Coluna Vertebral , Masculino , Humanos , Densidade Óssea , Distrofia Muscular de Duchenne/complicações , Distrofia Muscular de Duchenne/tratamento farmacológico , Distrofia Muscular de Duchenne/epidemiologia , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/epidemiologia , Fraturas da Coluna Vertebral/etiologia , Fraturas Ósseas/etiologia , Fraturas Ósseas/induzido quimicamente , Fatores de Risco , Glucocorticoides/efeitos adversos , Vértebras Lombares/diagnóstico por imagem , Esteroides , Fraturas por Osteoporose/etiologia
8.
JMIR Res Protoc ; 12: e53935, 2023 Dec 26.
Artigo em Inglês | MEDLINE | ID: mdl-38048480

RESUMO

BACKGROUND: Adolescents living with type 1 diabetes (T1D) often experience diabetes distress (DD), a construct distinct from depression or anxiety that refers to the negative emotions that arise from living with and managing diabetes. Self-compassion, which involves being open to one's own suffering and treating oneself with the same care one would show to loved ones, is associated with better psychological and clinical outcomes among individuals with T1D. Self-compassion is a skill that can be taught and therefore represents an opportunity for intervention. OBJECTIVE: The overall aim of this study is to assess the effectiveness of a web-based mindful self-compassion for teens (MSC-T) intervention on improving DD, anxiety, depression, diabetes-related disordered eating, and suicidal ideation experienced by youth with T1D (aged between 12 and 17 years) compared with a waitlist control group (standard of care). We will also explore (1) if the effect of the MSC-T intervention changes over time, (2) if the MSC-T intervention has a positive impact on measures of glycemic control, and (3) if the effect of the MSC-T intervention differs based on self-reported gender. METHODS: We will conduct a single-center, parallel-group randomized controlled trial of 140 adolescents with T1D followed for 12 months. Participants will be randomly allocated (using hidden allocation) in a 1:1 ratio to either the MSC-T intervention or the waitlist control group. Our primary outcome is DD, as measured by the Problem Areas in Diabetes-Teen (PAID-T) version at 3 months. Secondary outcomes, assessed at 3 and 12 months, include anxiety (Generalized Anxiety Disorder 7-item [GAD-7] scale), depression (Patient Health Questionnaire-9 [PHQ-9]), diabetes-related disordered eating (Diabetes Eating Problem Survey-Revised [DEPS-R] version), and suicidal ideation (using 1 question from the PHQ-9). RESULTS: Study recruitment began in October 2022 and was completed in March 2023, with a total of 141 participants enrolling. Data collection will be ongoing until March 2024. The first results are expected in June 2024. CONCLUSIONS: This study will be the first randomized trial to assess the effectiveness of the web-based MSC-T intervention on adolescents with T1D. Given that adolescence is a period where individuals are typically required to assume more responsibility for their diabetes care, providing adolescents with the tools they need to better manage the stress that often accompanies T1D management is paramount. TRIAL REGISTRATION: ClinicalTrials.gov NCT05463874; https://clinicaltrials.gov/study/NCT05463874. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/53935.

9.
BMJ Open Qual ; 12(3)2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37507143

RESUMO

INTRODUCTION: International guidelines recommend structured and continuous educational programmes to expand diabetes knowledge and self-efficacy in youth. To address these recommendations within a paediatric diabetes clinic, we conducted a three-phase quality improvement project aimed at improving adolescents' confidence in diabetes self-management skills. METHODS: In phase 1, the Diabetes Learning Centre (DLC), an educational programme for adolescents with type 1 diabetes (T1D) ages 13-17 years, was developed and implemented. Programme feasibility was evaluated through programme attendance rates. Phase 2 aimed to guide ongoing programme development and optimisation. DLC attendees rated their baseline confidence in overall and individual T1D self-management skills on a 5-point Likert scale. Patient characteristics were summarised using descriptive statistics and the association between patient characteristics and overall confidence in T1D self-management was evaluated. Phase 3 used patient surveys to evaluate patient satisfaction and reported change in confidence in self-management skills following DLC attendance. RESULTS: In phase 1, 232 (81%) of eligible adolescents attended the DLC during the study period. In phase 2, median overall confidence in diabetes management on a Likert scale (0-4) was 3, representing 'quite confident', although confidence was low in some essential self-management skills. Higher confidence was associated with lower HbA1c (p<0.001). In phase 3, 77 (85%) of participants reported high levels of satisfaction with the DLC. 106 (82%) of completed worksheets were associated with improved confidence in the diabetes self-management skill addressed. CONCLUSIONS: Implementation of a longitudinal T1D educational model was feasible with good uptake in an existing T1D programme. While confidence at baseline was quite high for overall T1D self-management, it was low in some essential self-management skills, highlighting the need for this programme and specific educational gaps. Adolescents reported improvements in confidence and high levels of satisfaction following DLC attendance. Our model provides a replicable programme template to address longitudinal education needs.


Assuntos
Diabetes Mellitus Tipo 1 , Autogestão , Adolescente , Humanos , Diabetes Mellitus Tipo 1/terapia , Satisfação Pessoal
10.
Bone Rep ; 19: 101695, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37520934

RESUMO

We describe the clinical evolution of a patient with tumoral calcinosis due to a pathogenic variant in the GALNT3 gene presented with a large mass overlying her left hip associated complicated by inflammatory flares. Therapy (sevelamer, acetazolamide, and probenecid) was unsuccessful in preventing tumour surgeries, therefore, interleukin-1ß monoclonal antibody therapy was added; this was successful in the prevention of tumour re-growth. This case highlights the importance of assessing and treating the inflammatory aspect of calcinotic tumour.

11.
Calcif Tissue Int ; 112(5): 613-620, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36867194

RESUMO

Osteogenesis imperfecta (OI) type VI, a recessively inherited form of OI caused by mutations in SERPINF1, is a severe form distinguished by osteomalacia on bone histomorphometry. We describe a boy with severe OI type VI who was initially treated with intravenous (IV) zoledronic acid (ZA) at 1.4 years of age; however, a year later he transitioned to denosumab 1 mg/kg sub-cutaneously every three months in an effort to decrease fracture rates. After two years on denosumab, he presented with symptomatic hypercalcemia due to the denosumab-induced, hyper-resorptive rebound phenomenon. Laboratory parameters at the time of the rebound were as follows: elevated serum ionized calcium (1.62 mmol/L, N 1.16-1.36), elevated serum creatinine due to hypercalcemia-induced muscle catabolism (83 µmol/L, N 9-55), and suppressed parathyroid hormone (PTH) (< 0.7 pmol/L, N 1.3-5.8). The hypercalcemia was responsive to low-dose IV pamidronate, with a rapid decline in serum ionized calcium, and otherwise normalization of the aforementioned parameters within 10 days. To benefit from the powerful, albeit short-term, anti-resorptive effect of denosumab without further rebound episodes, he was treated thereafter with denosumab 1 mg/kg alternating every three months with IV ZA 0.025 mg/kg. Five years later, he remained on dual alternating anti-resorptive therapy without further rebound episodes, and an overall improvement in his clinical status. This novel pharmacological approach of alternating short- and long-term anti-resorptive therapy every three months has not previously been described. Our report suggests this strategy may be an effective method for prevention of the rebound phenomenon in select children for whom denosumab may be beneficial.


Assuntos
Conservadores da Densidade Óssea , Hipercalcemia , Osteogênese Imperfeita , Criança , Masculino , Humanos , Osteogênese Imperfeita/tratamento farmacológico , Osteogênese Imperfeita/genética , Denosumab , Hipercalcemia/tratamento farmacológico , Cálcio/farmacologia , Densidade Óssea , Ácido Zoledrônico/uso terapêutico
12.
Bone Rep ; 18: 101663, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36950254

RESUMO

Osteochondritis dissecans (OCD) is a disease of the joints characterized by idiopathic focal subchondral lesions. Aggrecan, a proteoglycan encoded by the ACAN gene, is important for cartilage structure and function. We describe the clinical evolution of a patient with short stature, multi-focal OCD, and subchondral osteopenia that appeared linked to a novel pathogenic ACAN variant. A multi-disciplinary approach including medical (bisphosphonate) therapy, surgical intervention and rehabilitation were successful in restoring wellness and physical function.

13.
Pediatr Res ; 94(3): 1075-1082, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-36922619

RESUMO

BACKGROUND: Osteogenesis imperfecta (OI) is associated with short stature, which is mild, severe and moderate in OI types I, III and IV, respectively. Standardized OI type- and sex-specific growth charts across all pediatric ages do not exist. METHODS: We assessed 573 individuals with OI (type I, III or IV), each with at least one height measurement between ages 3 months and 20 years (total 6523 observations). Analogous to the Centers for Disease Control pediatric growth charts, we generated OI type- and sex-specific growth charts for infants (ages 3-36 months) as well as children and adolescents (ages 2-20 years). Growth curves were fitted to the data using the LMS method and percentiles were smoothed. RESULTS: Age was associated with a decline in height z-scores (p < 0.001 for all OI types), which was more pronounced in females. Height multiplier curves were produced to predict adult height in children with OI. Among individuals with OI type I, those with COL1A1 pathogenic variants leading to haploinsufficiency were taller than those with COL1A1 or COL1A2 pathogenic variants not leading to haploinsufficiency. CONCLUSION: Our standardized OI type- and sex-specific growth charts can be used to assess the growth of individuals with OI from infancy to adulthood. IMPACT: Standardized osteogenesis imperfecta (OI) type- and sex-specific growth charts across all pediatric ages do not exist. Our study is the first to generate OI type- and sex-specific growth charts across all pediatric ages. Our height multiplier curves can be utilized to predict adult height in children with OI.


Assuntos
Osteogênese Imperfeita , Masculino , Lactente , Adulto , Feminino , Adolescente , Humanos , Criança , Osteogênese Imperfeita/genética , Osteogênese Imperfeita/complicações , Gráficos de Crescimento , Colágeno Tipo I/genética , Estatura , Mutação
14.
Osteoporos Int ; 34(1): 147-160, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36342539

RESUMO

Patients with Duchenne muscular dystrophy (DMD) have a high fracture burden due to progressive myopathy and steroid-induced osteoporosis. This study in males with DMD showed that markers of systemic glucocorticoid exposure including shorter stature, greater bone age delay, and lower lumbar spine bone mineral density were associated with spine fragility. INTRODUCTION: Fragility  fractures are frequent in DMD. The purpose of this study was to identify clinical factors associated with prevalent vertebral fractures (VF) in boys, teens/young adults with Duchenne muscular dystrophy (DMD). METHODS: This was a cross-sectional study of males aged 4-25 years with DMD. VF were evaluated using the modified Genant semi-quantitative method on T4-L4 lateral spine radiographs. Areal bone mineral density (aBMD) was measured at the lumbar spine (LS) and used to estimate volumetric BMD (vBMD). Clinical factors were analyzed for their association with the Spinal Deformity Index (SDI, the sum of the Genant grades). RESULTS: Sixty participants were enrolled (mean age 11.5 years, range 5.4-19.5). Nineteen participants (32%) had a total of 67 VF; 23/67 VF (34%) were moderate or severe. Participants with VF were shorter (mean height Z-score ± standard deviation: - 3.1 ± 1.4 vs. - 1.8 ± 1.4, p = 0.001), had longer glucocorticoid exposure (mean duration 6.0 ± 3.3 vs. 3.9 ± 3.3 years, p = 0.027), greater bone age (BA) delay (mean BA to chronological age difference - 3.2 ± 3.4 vs. - 1.3 ± 1.2 years, p = 0.035), and lower LSaBMD Z-scores (mean - 3.0 ± 1.0 vs. - 2.2 ± 1.2, p = 0.023). There was no difference in LSvBMD Z-scores. Multivariable Poisson regression showed that every 0.1 mg/kg/day increment in average glucocorticoid daily dose was associated with a 1.4-fold SDI increase (95% confidence interval: 1.1-1.7, p = 0.013). Greater BA delay (p < 0.001), higher weight Z-score (p = 0.004), decreased height Z-score (p = 0.025), and lower LSvBMD Z-score (p = 0.025) were also associated with SDI increase. CONCLUSION: Readily measurable clinical variables were associated with prevalent VF in males with glucocorticoid-treated DMD. These variables may be useful to identify candidates for primary osteoporosis prevention after glucocorticoid initiation.


Assuntos
Fraturas Ósseas , Distrofia Muscular de Duchenne , Osteoporose , Fraturas da Coluna Vertebral , Masculino , Adolescente , Humanos , Pré-Escolar , Criança , Adulto Jovem , Adulto , Glucocorticoides/efeitos adversos , Distrofia Muscular de Duchenne/complicações , Distrofia Muscular de Duchenne/tratamento farmacológico , Estudos Transversais , Fraturas da Coluna Vertebral/etiologia , Fraturas da Coluna Vertebral/complicações , Fraturas Ósseas/complicações , Osteoporose/etiologia , Osteoporose/induzido quimicamente , Densidade Óssea , Fatores de Risco , Vértebras Lombares
15.
Genet Med ; 24(9): 1920-1926, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35657380

RESUMO

PURPOSE: Short stature is common in osteogenesis imperfecta (OI) and is usually severe in OI types III and IV. The characteristics of pubertal growth in OI have not been studied in detail. METHODS: We assessed 82 individuals with OI caused by pathogenic variants in COL1A1 or COL1A2 who had annual height data between 6 and 16 years of age at a minimum. Height velocity curves were fitted to each individual's height data to describe the pubertal growth spurt. RESULTS: Curve fitting was successful in 30 of the 33 individuals with OI type I (91%), in 23 of the 32 individuals with OI type IV (72%), and in 4 of the 17 participants with OI type III (24%). Pubertal growth spurt could be identified in most individuals with OI types I and IV, but rarely in OI type III. The timing of the pubertal growth spurt was similar between OI types I and IV in both sexes. However, height velocity was consistently higher in OI type I, leading to a widening height gap between OI types I and IV. CONCLUSION: A pubertal growth spurt was present in most individuals with OI types I and IV, but rarely in OI type III.


Assuntos
Osteogênese Imperfeita , Colágeno Tipo I/genética , Cadeia alfa 1 do Colágeno Tipo I , Feminino , Humanos , Masculino , Mutação , Osteogênese Imperfeita/genética
16.
Horm Res Paediatr ; 95(4): 354-362, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35569443

RESUMO

INTRODUCTION: Pediatric metabolic bone and mineral disorders encompass a wide variety of disorders that can be challenging to diagnose and treat because of inadequate physician training about optimal management. METHODS: As practice variation and confidence levels may impact clinical outcome, we sought to assess physician confidence in managing pediatric metabolic bone and mineral disorders and the spectrum of treatment practices among members of the Pediatric Endocrine Society (PES) and the Canadian Pediatric Endocrine Group (CPEG). Questionnaires were distributed via e-mail to all members of the PES and CPEG and 244 were completed. Responses were summarized using descriptive statistics, and proportions were compared using χ2 or Fisher's exact tests, as appropriate. RESULTS: Variations were observed among the respondents' confidence in the management of bone disorders and in the criteria used to initiate/discontinue intravenous bisphosphonates or prescribe burosumab therapy. Respondents felt confident with the management of 4 out of 20 pediatric bone conditions (confidence was defined as >90% of respondents reporting feeling "somewhat confident" or "very confident"). Physicians working in a bone clinic were more confident in prescribing burosumab for the treatment of X-linked hypophosphatemic rickets compared to those not working in a bone clinic (65% vs. 47%, p = 0.03). Most respondents (52%) reported having received inadequate training in pediatric metabolic bone and mineral disorders. DISCUSSION/CONCLUSION: Dedicated training, knowledge acquisition, and education resources are needed to increase confidence and standardize the use of bone-targeted therapies.


Assuntos
Doenças Ósseas Metabólicas , Doenças Ósseas Metabólicas/tratamento farmacológico , Canadá , Criança , Difosfonatos , Humanos , Inquéritos e Questionários
17.
Bone ; 160: 116400, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35367406

RESUMO

Mutations in SP7 (encoding osterix) have been identified as a rare cause of recessive osteogenesis imperfecta ('OI type XII') and in one case of dominant juvenile Paget's disease. We present the first description of young adult siblings with OI due to a unique heterozygous mutation in SP7. The phenotype was characterized by fragility fractures (primarily of the long bone diaphyses), poor healing, scoliosis, and dental malocclusion. Both siblings had very low cortical volumetric bone mineral density on peripheral quantitative computed tomography of the radius (z-scores -6.6 and - 6.7 at the diaphysis), porous cortices, and thin cortices at the radial metaphysis. Histomorphometry demonstrated thin cortices and low bone turnover with reduced osteoblast function. Both siblings were heterozygous for a missense variant affecting a highly conserved zinc finger domain of osterix (c.1019A > C; p.Glu340Ala) on DNA sequencing. Co-transfection of plasmids carrying the SP7 mutation with DLX5 and a luciferase reporter demonstrated that this variant impacted gene function (reduced transcription co-activation compared to wild-type SP7). The low cortical density and cortical porosity seen in our patients are consistent with previous reports of individuals with SP7 mutations. However, the low bone turnover in our patients contrasts with the high turnover state seen in previously reported patients with SP7 mutations. This report indicates that dominant variants in SP7 can give rise to OI. The predominant feature, low cortical density, is common in patients with other SP7 mutations, however other features appear to depend on the specific variant.


Assuntos
Osteíte Deformante , Osteogênese Imperfeita , Densidade Óssea/genética , Remodelação Óssea , Osso e Ossos , Heterozigoto , Humanos , Mutação , Osteogênese Imperfeita/diagnóstico por imagem , Osteogênese Imperfeita/genética , Fator de Transcrição Sp7/genética
19.
J Clin Endocrinol Metab ; 106(12): e5195-e5207, 2021 11 19.
Artigo em Inglês | MEDLINE | ID: mdl-34232311

RESUMO

CONTEXT: Osteoporotic fractures are an important cause of morbidity in children with glucocorticoid-treated rheumatic disorders. OBJECTIVE: This work aims to evaluate the incidence and predictors of osteoporotic fractures and potential for recovery over six years following glucocorticoid (GC) initiation in children with rheumatic disorders. METHODS: Children with GC-treated rheumatic disorders were evaluated through a prospective inception cohort study led by the Canadian STeroid-induced Osteoporosis in the Pediatric Population (STOPP) Consortium. Clinical outcomes included lumbar spine bone mineral density (LS BMD), vertebral fractures (VF), non-VF, and vertebral body reshaping. RESULTS: A total of 136 children with GC-treated rheumatic disorders were enrolled (mean age 9.9 years, SD 4.4). The 6-year cumulative fracture incidence was 16.3% for VF, and 10.1% for non-VF. GC exposure was highest in the first 6 months, and 24 of 38 VF (63%) occurred in the first 2 years. Following VF, 16 of 19 children (84%) had complete vertebral body reshaping. Increases in disease activity and body mass index z scores in the first year and declines in LS BMD z scores in the first 6 months predicted incident VF over the 6 years, while higher average daily GC doses predicted both incident VF and non-VF. LS BMD z scores were lowest at 6 months (mean -0.9, SD 1.2) and remained low by 6 years even when adjusted for height z scores (-0.6, SD 0.9). CONCLUSION: VF occurred early and were more common than non-VF in children with GC-treated rheumatic disorders. Eighty-four percent of children with VF underwent complete vertebral body reshaping, whereas vertebral deformity persisted in the remainder of children. On average, LS BMD z scores remained low at 6 years, consistent with incomplete recovery.


Assuntos
Densidade Óssea , Glucocorticoides/efeitos adversos , Osteoporose/epidemiologia , Fraturas por Osteoporose/epidemiologia , Doenças Reumáticas/tratamento farmacológico , Fraturas da Coluna Vertebral/epidemiologia , Corpo Vertebral/fisiopatologia , Adolescente , Canadá/epidemiologia , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Incidência , Lactente , Recém-Nascido , Estudos Longitudinais , Masculino , Osteoporose/induzido quimicamente , Osteoporose/patologia , Fraturas por Osteoporose/induzido quimicamente , Fraturas por Osteoporose/patologia , Prognóstico , Estudos Prospectivos , Doenças Reumáticas/patologia , Fatores de Risco , Fraturas da Coluna Vertebral/induzido quimicamente , Fraturas da Coluna Vertebral/patologia
20.
Diabet Med ; 38(6): e14541, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33576092

RESUMO

AIMS: During transition from paediatric to adult diabetes care, adolescents with diabetes are at increased risk of psychiatric disorders compared with those without diabetes. Prolonged gaps between the last paediatric and first adult diabetes care visit are associated with higher perceived stress and lower life satisfaction. We assessed the effect of a gap (>180 days) in establishing adult diabetes care on the risk of psychiatric disorders and determined other risk factors associated with psychiatric disorders during the transfer to adult care. METHODS: Using provincial health administrative databases, we conducted a retrospective cohort study of individuals from Québec, Canada, diagnosed with diabetes between ages 1 and 15 years in 1997-2015. These individuals were followed from 6 months after their last paediatric visit until age 25 years. We used multivariable Cox proportional hazard models to determine the association of gap in care with psychiatric disorders risk. RESULTS: Among 1772 youth with diabetes, 740 (42%) had a gap in care. There was a non-statistically significant association between gap in care and mood disorders diagnosed in the emergency department or hospital (hazard ratio [HR] 1.38, 95% confidence interval [CI]: [0.92, 2.07]). Older age at transfer, recent birth year and higher number of all-cause emergency department visits in the year before transfer increased the risks of psychiatric disorders. CONCLUSIONS: Prolonged gaps in care during transfer to adult care are common and may be associated with increased psychiatric disorder risk. Developmental factors associated with adolescence and emerging adulthood may further amplify this risk.


Assuntos
Diabetes Mellitus/epidemiologia , Serviço Hospitalar de Emergência/estatística & dados numéricos , Previsões , Transtornos Mentais/epidemiologia , Transição para Assistência do Adulto/organização & administração , Adolescente , Criança , Pré-Escolar , Comorbidade , Diabetes Mellitus/psicologia , Feminino , Seguimentos , Humanos , Incidência , Lactente , Masculino , Quebeque/epidemiologia , Estudos Retrospectivos , Fatores de Risco
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