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1.
Arch Endocrinol Metab ; 68: e230242, 2024 May 17.
Article de Anglais | MEDLINE | ID: mdl-38788147

RÉSUMÉ

Burosumab, a monoclonal antibody directed against the fibroblast growth factor 23 (FGF23), has been approved for the treatment of X-linked hypophosphatemia (XLH). We conducted a systematic review to compare the efficacy and safety of burosumab versus conventional therapy (phosphorus and calcitriol) on XLH treatment. After a comprehensive literature search on MEDLINE/PubMed and Embase, we found nine studies for inclusion in the analysis. Risk of bias was assessed, and a random-effects model was used to determine the effect size. Clinical, biochemical, and radiological parameters of disease severity before and after treatment were analyzed and expressed in standardized mean difference (SMD). Burosumab resulted in normalization of phosphate homeostasis with an increase in renal tubular phosphate reabsorption and significant resolution of skeletal lesions (change in Thacher's total rickets severity score SMD: -1.46, 95% confidence interval [CI]: -1.76 to -1.17, p < 0.001, improvement in deformities, and decline in serum alkaline phosphatase levels [SMD: 130.68, 95% CI: 125.26-136.1, p < 0.001)]. Conventional therapy led to similar improvements in all these parameters but to a lower degree. In adults, burosumab normalized phosphorus levels (SMD: 1.23, 95% CI: 0.98-1.47, p < 0.001) with resultant clinical improvement. Burosumab treatment was well tolerated, with only mild treatment-related adverse effects. The present review indicates a potential role for burosumab in improving rickets, deformities, and growth in children with XLH. Given its superior efficacy and safety profile, burosumab could be an effective therapeutic option in children. We suggest further studies comparing burosumab versus conventional therapy in children and adults with XLH.


Sujet(s)
Anticorps monoclonaux humanisés , Rachitisme hypophosphatémique familial , Facteur-23 de croissance des fibroblastes , Humains , Rachitisme hypophosphatémique familial/traitement médicamenteux , Anticorps monoclonaux humanisés/usage thérapeutique , Résultat thérapeutique , Calcitriol/usage thérapeutique , Anticorps monoclonaux/usage thérapeutique , Phosphore/sang
2.
Endocrine ; 80(2): 253-265, 2023 05.
Article de Anglais | MEDLINE | ID: mdl-36583826

RÉSUMÉ

BACKGROUND: The standard clinical treatment for hypoparathyroidism, replacement of calcium and vitamin metabolites (calcitriol), has been used for decades; however, evidence points to its inefficiency in acting on the pathophysiology of the disease, which may precipitate or aggravate conditions already related to hypoparathyroidism. Therapies based on recombinant human parathyroid hormone have emerged in recent years but still have low availability due to their high cost. Parathyroid allotransplantation (Pt-a) has been reported as a strategy for treating more severe cases. METHODS: This narrative review highlights relevant aspects of conventional permanent hypoparathyroidism treatment and provides a comprehensive and critical review of the reports of applications of Pt-a, especially those carried out in recent years. Particular focus is placed on the following key points: parathyroid immunogenicity, immunosuppression regimens (short-term or chronic), techniques to reduce the expression of immunogenic molecules, follow-up time, and reductions in calcium and vitamin D supplementation. CONCLUSION: Pt-a has been considered a safe and relatively low-cost therapy and is believed to have the potential to cure the disease, in addition to treating symptoms. However, there is considerable heterogeneity in treatment protocols; therefore, more studies are required to improve the standardization of the procedure and thus improve the consistency of outcomes.


Sujet(s)
Hypocalcémie , Hypoparathyroïdie , Humains , Calcium/usage thérapeutique , Hypocalcémie/traitement médicamenteux , Hormone parathyroïdienne/usage thérapeutique , Hypoparathyroïdie/traitement médicamenteux , Hypoparathyroïdie/diagnostic , Glandes parathyroïdes/chirurgie , Calcitriol/usage thérapeutique
3.
J Bras Nefrol ; 45(1): 95-101, 2023.
Article de Anglais, Portugais | MEDLINE | ID: mdl-35980102

RÉSUMÉ

INTRODUCTION: Hyperparathyroidism (SHPT) secondary to chronic kidney disease (CKD) is characterized by high levels of parathyroid hormone (PTH), hyperplasia of the parathyroid glands and cardiovascular disease. Selective and non-selective and selective vitamin D-receptor activators, calcimimetics, are available in the Brazilian market to reduce PTH levels. OBJECTIVES: To develop a cost-effectiveness (C/E) and budgetary impact (BI) analysis of intravenous paricalcitol vs. oral calcitriol for patients on dialysis with SHPT, from the perspective of the Brazilian Public Health Care System (SUS). METHODOLOGY: We built a decision-tree model to analyze C/E, which considered the outcome of avoided death and a time horizon of 1 year. As for the BI analysis, two scenarios were considered, one of demand and one of epidemiological approach, based on data from the Brazilian Society of Nephrology. RESULTS: The analysis showed that the C/E ratio was R$ 1,213.68 per year, and an incremental effectiveness of 0.032, referring to avoided death. The incremental C/E ratio was R$37,927.50 per death averted by paricalcitol. It was estimated that the incremental BI with the expansion of paricalcitol use will be between R$1,600,202.28 and R$4,128,565.65 in the first year, considering the main and epidemiological scenarios. At the end of 5 years after the expansion of its use, an incremental BI was estimated between R$ 48,596,855.50 and R$ 62,90,555.73. CONCLUSION: Intravenous paricalcitol has superior efficacy and similar safety to oral calcitriol, reducing the overall mortality of dialysis patients, although it implies a higher cost.


Sujet(s)
Calcitriol , Ergocalciférol , Hyperparathyroïdie secondaire , Insuffisance rénale chronique , Humains , Calcitriol/administration et posologie , Calcitriol/usage thérapeutique , Analyse coût-bénéfice , Évaluation du Coût-Efficacité , Hyperparathyroïdie secondaire/traitement médicamenteux , Hyperparathyroïdie secondaire/étiologie , Hormone parathyroïdienne , Dialyse rénale , Insuffisance rénale chronique/complications , Ergocalciférol/administration et posologie , Ergocalciférol/usage thérapeutique
4.
Int J Mol Sci ; 23(14)2022 Jul 11.
Article de Anglais | MEDLINE | ID: mdl-35887002

RÉSUMÉ

In highly aggressive tumors, cancer cells may form channel-like structures through a process known as vasculogenic mimicry (VM). VM is generally associated with metastasis, mesenchymal phenotype, and treatment resistance. VM can be driven by antiangiogenic treatments and/or tumor microenvironment-derived factors, including those from the endothelium. Curcumin, a turmeric product, inhibits VM in some tumors, while calcitriol, the most active vitamin D metabolite, exerts potent antineoplastic effects. However, the effect of these natural products on VM in breast cancer remains unknown. Herein, we studied the effect of both compounds on triple-negative breast cancer (TNBC) VM-capacity in a co-culture model. The process of endothelial cell-induced VM in two human TNBC cell lines was robustly inhibited by calcitriol and partially by curcumin. Calcitriol promoted TNBC cells' morphological change from spindle-like to cobblestone-shape, while curcumin diminished VM 3D-structure. Notably, the treatments dephosphorylated several active kinases, especially those involved in the PI3K/Akt pathway. In summary, calcitriol and curcumin disrupted endothelium-induced VM in TNBC cells partially by PI3K/Akt inactivation and mesenchymal phenotype inhibition. Our results support the possible use of these natural compounds as adjuvants for VM inactivation in patients with malignant tumors inherently capable of forming VM, or those with antiangiogenic therapy, warranting further in vivo studies.


Sujet(s)
Calcitriol , Curcumine , Endothélium vasculaire , Tumeurs du sein triple-négatives , Inhibiteurs de l'angiogenèse/pharmacologie , Inhibiteurs de l'angiogenèse/usage thérapeutique , Antinéoplasiques/pharmacologie , Antinéoplasiques/usage thérapeutique , Calcitriol/pharmacologie , Calcitriol/usage thérapeutique , Lignée cellulaire tumorale , Curcumine/pharmacologie , Curcumine/usage thérapeutique , Endothélium/effets des médicaments et des substances chimiques , Endothélium/métabolisme , Endothélium vasculaire/effets des médicaments et des substances chimiques , Endothélium vasculaire/métabolisme , Humains , Néovascularisation pathologique/traitement médicamenteux , Néovascularisation pathologique/métabolisme , Phosphatidylinositol 3-kinases , Protéines proto-oncogènes c-akt/métabolisme , Tumeurs du sein triple-négatives/traitement médicamenteux , Tumeurs du sein triple-négatives/métabolisme , Tumeurs du sein triple-négatives/anatomopathologie , Microenvironnement tumoral/effets des médicaments et des substances chimiques , Microenvironnement tumoral/physiologie
6.
Calcif Tissue Int ; 111(1): 102-106, 2022 07.
Article de Anglais | MEDLINE | ID: mdl-35338393

RÉSUMÉ

Hyperphosphatemic familial tumor calcinosis (HFTC) is a rare disease characterized by hyperphosphatemia and calcium and phosphorus crystal deposition. It occurs due to the loss of function of FGF23. Herein, we report a case of a 50-year-old woman diagnosed with HFTC (homozygous variant in the GALNT3 gene, c.803_804 C insertion) with a history of ectopic calcifications in the past 30 years. Laboratory tests on admission were as follows: phosphate (P) 7.1 mg/dL (Normal range (NR) 2.5-4.5 mg/dL), FGF23 c-terminal 2050 RU/mL (NR < 150 RU/mL), and intact FGF23 (iFGF23) 18.93 pg/mL (NR 12.0-69.0 pg/mL). Treatment with acetazolamide, sevelamer, and a phosphorus-restricted diet was started, but phosphatemia remained high and calcifications continued to progress. In an attempt to further decrease P, a 36-day cycle of teriparatide (TPTD) 20 mcg twice daily was added, decreasing P from 6.2 to 5.2 mg/dL and increasing the 1.25(OH)2 vitamin D by 34.2%. As urinalysis was not feasible at the end of the 36-day cycle, a second cycle was performed for another 28 days, producing a similar decrease in P (from 6.4 to 5.5 mg/mL) and an evident decrease in the rate of tubular reabsorption of P (from 97.2 to 85.3%), however, accompanied by a worrying increase in calciuria. The use of TPTD 20 mcg twice daily in a patient with genetic resistance to FGF23 (HFTC) was associated with consistent increase in phosphaturia and reduction in phosphatemia, in addition to an increase in calcitriol. The resulting hypercalciuria precludes the therapeutic use of TPTD in HFTC and suggests an important role of FGF23, not only in phosphate homeostasis but also in avoiding any excess of calcitriol.


Sujet(s)
Calcinose , Hyperphosphatémie , Hypophosphatémie familiale , N-acetylgalactosaminyltransferase , Tumeurs , Calcinose/traitement médicamenteux , Calcinose/génétique , Calcitriol/usage thérapeutique , Femelle , Facteurs de croissance fibroblastique/génétique , Humains , Hyperostose corticale infantile , Hyperphosphatémie/diagnostic , Hyperphosphatémie/traitement médicamenteux , Adulte d'âge moyen , N-acetylgalactosaminyltransferase/génétique , N-acetylgalactosaminyltransferase/usage thérapeutique , Phosphates , Phosphore , Tériparatide/usage thérapeutique
8.
Brasília; CONITEC; fev. 2022.
Non conventionel de Portugais | BRISA/RedTESA | ID: biblio-1368901

RÉSUMÉ

CONTEXTO: O hiperparatireoidismo secundário (HPTS) à doença crônica renal é caracterizado por elevados níveis séricos de paratormônio (PTH), hiperplasia das glândulas paratireoides, doença óssea de alto remanejamento e doença cardiovascular. O nível de PTH considerado adequado para pacientes com DRC estágio 5D está situado entre 150 e 300 pg/ml ou duas a nove vezes o valor limite do método de dosagem. Segundo o censo da Sociedade Brasileira de Nefrologia (SBN), em 2020, estima-se que 144.779 pacientes estão em tratamento dialítico no Brasil. Destes, aproximadamente 18% apresentavam níveis de PTH acima de 600 pg/mL em 2019, enquanto em 2014 eram em torno de 26%, sugerindo que houve certo impacto na redução dos níveis de PTH com a incorporação do paricalcitol e implementação do PCDT em 2017. Para a redução dos níveis do PTH, estão disponíveis no mercado brasileiro três classes de medicamentos: ativadores não seletivos do receptor da vitamina D (calcitriol e alfacalcidol), ativadores seletivos de VDR (paricalcitol) e calcimiméticos (cinacalcete). Dentre os medicamentos supracitados, o SUS disponibiliza calcitriol oral, tendo sido descontinuados a apresentação intravenosa, em 2020, e o alfacalcidol oral, em 2017. Em relação ao paricalcitol, sua disponibilização no SUS está voltada aos pacientes com PTH igual ou superior a 500 pg/ml e, para o cinacalcete, aos pacientes com níveis de PTH acima de 800 pg/ml. Neste sentido o objetivo deste documento é analisar novas evidências científicas existentes sobre o paricalcitol, visando sua ampliação de uso para o tratamento do HPTS associado à DRC estágio 5D em pacientes com resposta inadequada ao calcitriol para manutenção dos níveis de PTH < 300 pg/ml, ou como primeira linha nos pacientes com HPTS moderado (PTH > 300 pg/ml) na ausência de hiperfosfatemia e hipercalcemia ou ainda nos pacientes em uso de cinacalcete que apresentem hipocalcemia e/ou necessitem da associação de paricalcitol para atingir os níveis alvo de PTH. TECNOLOGIA: Paricalcitol. PERGUNTA: O uso do paricalcitol é eficaz, seguro e custo-efetivo em pacientes com Hiperparatireoidismo secundário à DRC estágio 5D quando comparado ao calcitriol? EVIDÊNCIAS CIENTÍFICAS: A partir da busca das evidências conduzida nas bases de dados The Cochrane Library, MedLine (via PubMed), Embase (Elsevier), PubMed Central, Epistemonikos, NICE e Biblioteca Virtual de Saúde, uma revisão sistemática foi incluída para a síntese de evidências, por ser considerada a de melhor qualidade metodológica e a mais completa por atender à PICO definida. Quanto aos desfechos clínicos, a mortalidade por todas as causas, com RR 0,84; IC 95% 0,79- 0,90; <0,00001 demonstrau maior eficácia do tratamento com paricalcitol do que com outros análogos não seletivos de vitamina D. Não foram observadas diferenças significativas na incidência de eventos adversos como hipercalcemia e hiperfosfatemia e no controle dos níveis de PTH. A qualidade metodológica geral da revisão sistemática selecionada para atualização foi classificada como moderada. Segundo o GRADE, a qualidade da evidência para o desfecho de mortalidade por todas as causas foi moderada; muito baixa para níveis séricos de fósforo e baixa para os demais desfechos avaliados. AVALIAÇÃO ECONÔMICA: Com base nos dados da literatura, foi construído um modelo de árvore de decisão para a análise de custo-efetividade, que considerou o desfecho de morte evitada e um horizonte temporal de 1 ano. Como resultado da comparação entre paricalcitol e calcitriol oral na perspectiva do SUS, a análise mostrou que a relação de custo efetividade (C/E) foi de R$ 1.213,68 ao ano e uma efetividade incremental de 0,032, referente a morte evitada em um ano. A RCEI foi de R$ 37.927,50 por morte evitada para o paricalcitol. ANÁLISE DE IMPACTO ORÇAMENTÁRIO: CONSIDERADOS três cenários, sendo dois de demanda aferida, com dados do Departamento de Assistência Farmacêutica e Insumos Estratégicos do Ministério da Saúde (DAF) e da Sala Aberta de Inteligência em Saúde (SABEIS); e um cenário de abordagem epidemiológica, baseado nos dados da SBN. Como resultados, estimou-se um impacto orçamentário incremental com a ampliação do uso do paricalcitol no SUS entre R$ 1.600.202,28 e R$ 4.128.565,65 no primeiro e, ao final de 5 anos de ampliação de uso, entre R$ 48.596.855,50 e R$ 62.90.555,73 considerando os cenários principal, baseado nos dados do DAF e nos dados da SABEIS e o epidemiológico com base nos dados da SBN. Já ao final de 5 anos de ampliação de uso, estimou-se um impacto incremental que variou de R$ 59.717.279,99 a R$ 101.637.532,13 a depender do cenário considerado. Monitoramento do Horizonte Tecnológico: Identificou-se apenas um medicamento, denominado etelcalcetide, o qual não possui registro sanitário na Anvisa. Entretanto, obteve registro na Europa (EMA) em 2016 e nos EUA (FDA) em 2017. CONSIDERAÇÕES FINAIS: O paricalcitol foi incorporado pelo SUS em 2015, sendo contemplado como segunda linha de tratamento para pacientes com HPTS à DRC, em diálise. Entretanto, com base em diretrizes nacionais e internacionais sobre o tema, avaliou-se a sua ampliação para pacientes com PTH acima de 300 pg/ml na ausência de hiperfosfatemia e hipercalcemia ou ainda nos pacientes em uso de cinacalcete que apresentem hipocalcemia e/ou necessitem da associação de paricalcitol para atingir os níveis alvo de PTH. As evidências clínicas selecionadas demonstraram que paricalcitol é mais eficaz que outros análogos não seletivos de vitamina D, como calcitriol, nos desfechos de mortalidade por todas as causas, enquanto que não foram observadas diferenças significativas na incidência de eventos adversos como hipercalcemia e hiperfosfatemia e nos níveis de PTH. A maioria dos desfechos apresentou qualidade da evidência baixa, com exceção da mortalidade que foi moderada. Na avaliação econômica, a análise mostrou que o uso de paricalcitol resulta em um custo incremental de R$ 1.213,68 ao ano e uma efetividade incremental de 0,032, referente a morte evitada em um ano. A RCEI foi de R$ 37.927,50 por morte evitada para o paricalcitol. Estimou-se que o impacto orçamentário incremental com a ampliação do uso do paricalcitol no SUS estará entre R$ 1.600.202,28 e R$ 4.128.565,65 no primeiro e, ao final de 5 anos de ampliação de uso, entre R$ 48.596.855,50 e R$ 62.90.555,73 a depender do cenário considerado. PERSPECTIVA DO PACIENTE: A chamada pública de número 54/2021 para participar da Perspectiva do Paciente sobre o tema foi aberta de 14/09/2021 a 20/09/2021 e três pessoas se inscreveram. A indicação dos representantes titular e suplente para fazer o relato da experiência foi feita a partir de definição consensual por parte do grupo de inscritos. No relato, o participante descreveu sua experiência de tratamento com o cinacalcete ­ que era suspenso e retomado quando as alterações nos níveis de PTH assim exigiam. O paciente não mais utiliza o medicamento desde a realização do segundo transplante renal, visto que desde então os níveis de PTH se mantêm estáveis. RECOMENDAÇÃO PRELIMINAR DA CONITEC: O Plenário da Conitec, em sua 104ª Reunião Ordinária, no dia 09 de dezembro de 2021, deliberou que a matéria fosse disponibilizada em Consulta Pública com recomendação preliminar favorável à ampliação de uso do paricalcitol para o tratamento de pacientes com hiperparatireoidismo secundário à doença renal crônica, submetidos à diálise, com níveis de PTH acima de 300 pg/ml e ausência de hiperfosfatemia e hipercalcemia. Os membros da Conitec consideraram que o paricalcitol possui eficácia superior e segurança semelhante ao comparador calcitriol, diminuindo a mortalidade geral dos pacientes em diálise. CONSULTA PÚBLICA: Foram recebidas sete contribuições, sendo duas pelo formulário técnico-científico e cinco pelo formulário sobre experiência ou opinião. Das duas contribuições de cunho técnico-científico recebidas, uma foi favorável e outra contra à recomendação inicial da Conitec. Não houve apresentação de dados sobre evidências clínicas, análise de impacto orçamentário ou avaliação econômica. As cinco contribuições recebidas sobre experiência com a tecnologia ou opinião sobre o tema concordaram com a recomendação inicial da Conitec. RECOMENDAÇÃO FINAL DA CONITEC: O Plenário da Conitec, em sua 105ª Reunião Ordinária, no dia 09 de fevereiro de 2022, deliberou por unanimidade recomendar a ampliação de uso do paricalcitol para o tratamento de pacientes com hiperparatireoidismo secundário à doença renal crônica, submetidos à diálise, com níveis de PTH acima de 300 pg/ml e com normo ou hipocalcemia. Por fim, foi assinado o Registro de Deliberação nº 699/2022. DECISÃO: Ampliar o uso do paricalcitol para o tratamento de pacientes com hiperparatireoidismo secundário à doença renal crônica, submetidos à diálise, com níveis de PTH acima de 300 pg/ml e com normo ou hipocalcemia, e conforme protocolo estabelecido pelo Ministério da Saúde, no âmbito do Sistema Único de Saúde ­ SUS, conforme a Portaria nº 36, publicada no Diário Oficial da União nº 72, seção 1, página 447, em 14 de abril de 2022.


Sujet(s)
Humains , Vitamine D/analogues et dérivés , Calcitriol/usage thérapeutique , Insuffisance rénale chronique/physiopathologie , Hyperparathyroïdie secondaire/traitement médicamenteux , Système de Santé Unifié , Brésil , Analyse coût-bénéfice
9.
Int J Mol Sci ; 22(23)2021 Nov 25.
Article de Anglais | MEDLINE | ID: mdl-34884550

RÉSUMÉ

Preclinical, clinical, and epidemiological studies indicate that vitamin D3 (VD) deficiency is a risk factor for the development of breast cancer. Underlying mechanisms include the ability of calcitriol to induce cell differentiation, inhibit oncogenes expression, and modify different signaling pathways involved in the control of cell proliferation. In addition, calcitriol combined with different kinds of antineoplastic drugs has been demonstrated to enhance their beneficial effects in an additive or synergistic fashion. However, a recognized adjuvant regimen based on calcitriol for treating patients with breast cancer has not yet been fully established. Accordingly, in the present work, we review and discuss the preclinical and clinical studies about the combination of calcitriol with different oncological drugs, aiming to emphasize its main therapeutic benefits and opportunities for the treatment of this pathology.


Sujet(s)
Antinéoplasiques/usage thérapeutique , Tumeurs du sein/traitement médicamenteux , Calcitriol/usage thérapeutique , Synergie des médicaments , Apoptose , Agents de maintien de la densité osseuse/usage thérapeutique , Tumeurs du sein/anatomopathologie , Association de médicaments , Femelle , Humains
11.
Indian J Dermatol Venereol Leprol ; 87(5): 660-665, 2021.
Article de Anglais | MEDLINE | ID: mdl-32719198

RÉSUMÉ

Nevoid acanthosis nigricans is a rare, benign form of acanthosis nigricans. Of the 24 cases documented in the literature, only two are exclusively localized to the umbilicus. We present four cases of nevoid acanthosis nigricans localized to the umbilicus; in patients less than 25 years of age, with no known co-morbidities, three of whom were females. Two of the cases received, with good response, treatment based on topical calcipotriol, a medication not previously reported to be used for this indication. Contrary to other types of acanthosis nigricans, the nevoid acanthosis nigricans is not associated with any syndrome, endocrinopathy, obesity, medication, or neoplasia and it can be confused with other pathologies such as epidermal nevus or dermatosis neglecta.


Sujet(s)
Acanthosis nigricans/traitement médicamenteux , Acanthosis nigricans/anatomopathologie , Ombilic/anatomopathologie , Administration par voie topique , Adolescent , Calcitriol/analogues et dérivés , Calcitriol/usage thérapeutique , Produits dermatologiques/usage thérapeutique , Femelle , Humains , Mâle , Jeune adulte
12.
Brasília; CONITEC; nov. 2020.
Non conventionel de Portugais | BRISA/RedTESA | ID: biblio-1141492

RÉSUMÉ

CONTEXTO: Os distúrbios do metabolismo mineral e ósseo (DMO) que ocorrem na doença renal crônica (DRC) são frequentes e caracterizam-se pela presença de alterações dos níveis séricos de cálcio, fósforo, vitamina D e hormônio da paratireoide (PTH), de anormalidades ósseas (remodelação, mineralização e volume ósseo) ou da presença de calcificações extraesqueléticas. Dentre estes, a deficiência de calcitriol é um importante mecanismo envolvido na progressão do hiperparatireoidismo secundário (HPTS). Estas anormalidades da DRC podem contribuir para o desenvolvimento de doença cardiovascular, calcificação vascular e mortalidade. Segundo censo de 2015 da Sociedade Brasileira de Nefrologia, estima-se que 111.303 pacientes se encontram em terapia renal substitutiva, sendo que aproximadamente 90% estão em hemodiálise. Destes, aproximadamente 33% apresentavam hiperfosfatemia, 18% níveis de PTH acima de 600 pg/mL e 14% abaixo de 100 pg/mL. Em relação ao tratamento, cerca de 11% usavam calcitriol, 3% paricalcitol e 3% cinacalcete. Dentre as opções terapêuticas preconizadas pelo Protocolo Clínico e Diretrizes Terapêuticas (PCDT) do Distúrbio Mineral Ósseo na Doença Renal Crônica, do Ministério da Saúde, está o calcitriol, em cápsulas de 0,25 mcg e ampolas de 1 mcg para uso intravenoso. Segundo o PCDT, as doses orais e injetáveis de calcitriol são equivalentes. Portanto cada ampola de calcitriol de 1 mcg equivale a 4 comprimidos de calcitriol 0,25 mcg. TECNOLOGIA: calcitriol 1,0 mcg/mL injetável. JUSTIFICATIVA DA EXCLUSÃO: Atualmente, há apenas um registro sanitário válido para o calcitriol 1,0 mcg/mL injetável no Brasil. Entretanto, sua única empresa fabricante, Abbvie Farmacêutica Ltda., informou ao DAF sua decisão de descontinuar a comercialização do medicamento no país, de modo que calcitriol 1,0 mcg/mL injetável só deve ser comercializado até o fim do ano de 2020. Tendo isso em mente e considerando que existem outros medicamentos preconizados pelo referido PCDT, incluindo o calcitriol 0,25 mcg em cápsula, o DAF entende que a população não deixará de ser atendida devido à ausência de alternativas terapêuticas para essa condição. Além disso, o PCDT do Distúrbio Mineral Ósseo na DRC considera que ambas as apresentações farmacêuticas são equivalentes. Dessa forma, a exclusão de calcitriol 1,0 mcg/mL injetável do SUS se faz necessária para que os pacientes que atualmente o utilizam possam migrar para as demais terapias disponíveis, sem que haja interrupções em seus tratamentos. RECOMENDAÇÃO FINAL DA CONITEC: O Plenário da Conitec, em sua 92ª Reunião Ordinária, no dia 04 de novembro de 2020, deliberou por unanimidade recomendar a exclusão do calcitriol 1,0 mcg/mL injetável, no SUS. Assim, foi assinado o Registro de Deliberação nº 571/2020. DECISÃO: Excluir o medicamento calcitriol 1,0 mcg/mL injetável, no âmbito do Sistema Único de Saúde ­ SUS, conforme Portaria nº 57, publicada no Diário Oficial da União nº 228, seção 1, página 716, em 1º de dezembro de 2020.


Sujet(s)
Humains , Calcitriol/usage thérapeutique , Rappels de médicaments/organisation et administration , Évaluation de la technologie biomédicale , Système de Santé Unifié , Brésil , Analyse coût-bénéfice , Injections veineuses
13.
Acta Cir Bras ; 35(4): e202000404, 2020.
Article de Anglais | MEDLINE | ID: mdl-32555936

RÉSUMÉ

PURPOSE: To analyze the effect of calcitriol treatment on acute colitis in an experimental rat model. METHODS: A total of 24 adult Sprague Dawley albino rats were randomly separated into 3 equal groups: control group (n:8), colitis group (n:8), calcitriol administered group (n:8). A single dose of acetic acid (1 ml of 4% solution) was administered intrarectally to induce colitis. Group 1 was given 1 ml/kg 0.9% NaCl intraperitoneally; rats belonging to Group 2 were administered calcitriol 1 µg/kg for 5 days. RESULTS: Plasma tumor necrosis factor alpha, Pentraxin 3, and malondialdehyde levels were significantly lower in the calcitriol administered colitis group than in the standard colitis group (p<0.01). In the Calcitriol group, there was a significant histological improvement in hyperemia, hemorrhage and necrotic areas in the epithelium compared to the placebo group (p <0.000). CONCLUSION: The findings suggest that calcitriol may be an agent that could be used in acute colitis treatment.


Sujet(s)
Anti-inflammatoires/usage thérapeutique , Calcitriol/usage thérapeutique , Colite/traitement médicamenteux , Maladie aigüe , Animaux , Protéine C-réactive/analyse , Colite/sang , Colite/anatomopathologie , Modèles animaux de maladie humaine , Peroxydation lipidique , Mâle , Malonaldéhyde/sang , Stress oxydatif/génétique , Répartition aléatoire , Rat Sprague-Dawley , Valeurs de référence , Reproductibilité des résultats , Composant sérique amyloïde P/analyse , Résultat thérapeutique , Facteur de nécrose tumorale alpha/analyse
14.
Acta cir. bras. ; 35(4): e202000404, June 5, 2020. tab, ilus
Article de Anglais | VETINDEX | ID: vti-28338

RÉSUMÉ

Purpose To analyze the effect of calcitriol treatment on acute colitis in an experimental rat model. Methods A total of 24 adult Sprague Dawley albino rats were randomly separated into 3 equal groups: control group (n:8), colitis group (n:8), calcitriol administered group (n:8). A single dose of acetic acid (1 ml of 4% solution) was administered intrarectally to induce colitis. Group 1 was given 1 ml/kg 0.9% NaCl intraperitoneally; rats belonging to Group 2 were administered calcitriol 1 µg/kg for 5 days. Results Plasma tumor necrosis factor alpha, Pentraxin 3, and malondialdehyde levels were significantly lower in the calcitriol administered colitis group than in the standard colitis group (p 0.01). In the Calcitriol group, there was a significant histological improvement in hyperemia, hemorrhage and necrotic areas in the epithelium compared to the placebo group (p 0.000). Conclusion The findings suggest that calcitriol may be an agent that could be used in acute colitis treatment.(AU)


Sujet(s)
Animaux , Rats , Vitamine D/usage thérapeutique , Colite/thérapie , Colite/médecine vétérinaire , Acide acétique/usage thérapeutique , Calcitriol/usage thérapeutique , Rat Sprague-Dawley
15.
Medicina (B.Aires) ; Medicina (B.Aires);80(3): 289-291, jun. 2020. graf, tab
Article de Espagnol | LILACS | ID: biblio-1125082

RÉSUMÉ

El hipoparatiroidismo (hipoPTH) es una enfermedad infrecuente caracterizada por hipocalcemia y niveles inapropiadamente bajos o ausentes de parathormona. Presentamos el caso de un hombre de 25 años, deportista de alto rendimiento, con antecedente de hipoPTH secundario a tiroidectomía total dos años antes por cáncer papilar multifocal bilateral tiroideo, estadificado como T3 N1b M0, derivado por hipocalcemia sintomática. Presentaba calcemias promedio de 7mg%, síntomas de hipocalcemia en reposo y múltiples internaciones. Inicialmente, se optimizó tratamiento convencional con aporte de calcio vía oral hasta 12g/día, vitamina D y calcitriol, sin mejoría clínica ni bioquímica. Se descartaron malabsorción y complicaciones crónicas de hipoPTH. Se evidenció a través de cuestionario de salud SF-36 disminución de la calidad de vida. Se indicó sustitución con parathormona recombinante humana [rhPTH(1-84)] 50μg/día subcutánea con posterior ascenso a 75μg y reducción progresiva de la medicación por vía oral. Actualmente se encuentra asintomático, sin requerimiento de calcio ni vitamina D, mantiene calcemias de 9mg%, realiza actividad deportiva y demuestra marcada mejoría en la calidad de vida según cuestionario SF-36 (36-Item Short Form Health Survey).


Hypoparathyroidism (HypoPT) is a rare disease characterized by low calcium and inappropriately low circulating parathormone levels. We present the case of a 25-year-old high-performance athlete male, with history of HypoPT after total thyroidectomy for papillary thyroid carcinoma (T3 N1b M0) two years before, who was referred to our clinic for symptomatic hypocalcemia. The patient reported serum calcium average levels of 7mg%, presented symptoms of hypocalcemia at rest and had multiple hospital admissions. First, standard treatment was optimized by calcium supplementation up to 12g/d and active vitamin D, not showing clinical or biochemical improvement. Malabsorption and complications of chronic HypoPT were ruled out. The 36-Item Short Form Health Survey (SF-36) demonstrated an impaired quality of life (QoL). Full-length recombinant human parathyroid hormone [rhPTH(1-84)] therapy was started with 50μg/d subcutaneous, and later adjusted to 75μg/d and the oral treatment gradually decreased. Currently, he is asymptomatic, with serum calcium levels above 9mg%, without receiving oral medication. He performs sports activity and shows marked improvement in quality of life according to SF-36 questionnaire.


Sujet(s)
Humains , Mâle , Adulte , Hormone parathyroïdienne/usage thérapeutique , Hypoparathyroïdie/traitement médicamenteux , Thyroïdectomie/effets indésirables , Vitamine D/usage thérapeutique , Calcitriol/usage thérapeutique , Tumeurs de la thyroïde/chirurgie , Tumeurs de la thyroïde/complications , Hormonothérapie substitutive/méthodes , Hormones et agents régulant le calcium/usage thérapeutique , Cancer papillaire de la thyroïde/chirurgie , Cancer papillaire de la thyroïde/complications , Hypoparathyroïdie/étiologie
16.
Medicina (B Aires) ; 80(3): 289-291, 2020.
Article de Espagnol | MEDLINE | ID: mdl-32442945

RÉSUMÉ

Hypoparathyroidism (HypoPT) is a rare disease characterized by low calcium and inappropriately low circulating parathormone levels. We present the case of a 25-year-old high-performance athlete male, with history of HypoPT after total thyroidectomy for papillary thyroid carcinoma (T3 N1b M0) two years before, who was referred to our clinic for symptomatic hypocalcemia. The patient reported serum calcium average levels of 7mg%, presented symptoms of hypocalcemia at rest and had multiple hospital admissions. First, standard treatment was optimized by calcium supplementation up to 12g/d and active vitamin D, not showing clinical or biochemical improvement. Malabsorption and complications of chronic HypoPT were ruled out. The 36-Item Short Form Health Survey (SF-36) demonstrated an impaired quality of life (QoL). Full-length recombinant human parathyroid hormone [rhPTH(1-84)] therapy was started with 50υg/d subcutaneous, and later adjusted to 75υg/d and the oral treatment gradually decreased. Currently, he is asymptomatic, with serum calcium levels above 9mg%, without receiving oral medication. He performs sports activity and shows marked improvement in quality of life according to SF-36 questionnaire.


El hipoparatiroidismo (hipoPTH) es una enfermedad infrecuente caracterizada por hipocalcemia y niveles inapropiadamente bajos o ausentes de parathormona. Presentamos el caso de un hombre de 25 años, deportista de alto rendimiento, con antecedente de hipoPTH secundario a tiroidectomía total dos años antes por cáncer papilar multifocal bilateral tiroideo, estadificado como T3 N1b M0, derivado por hipocalcemia sintomática. Presentaba calcemias promedio de 7mg%, síntomas de hipocalcemia en reposo y múltiples internaciones. Inicialmente, se optimizó tratamiento convencional con aporte de calcio vía oral hasta 12g/día, vitamina D y calcitriol, sin mejoría clínica ni bioquímica. Se descartaron malabsorción y complicaciones crónicas de hipoPTH. Se evidenció a través de cuestionario de salud SF-36 disminución de la calidad de vida. Se indicó sustitución con parathormona recombinante humana [rhPTH(1-84)] 50υg/día subcutánea con posterior ascenso a 75υg y reducción progresiva de la medicación por vía oral. Actualmente se encuentra asintomático, sin requerimiento de calcio ni vitamina D, mantiene calcemias de 9mg%, realiza actividad deportiva y demuestra marcada mejoría en la calidad de vida según cuestionario SF-36 (36-Item Short Form Health Survey).


Sujet(s)
Hypoparathyroïdie/traitement médicamenteux , Hormone parathyroïdienne/usage thérapeutique , Adulte , Calcitriol/usage thérapeutique , Hormones et agents régulant le calcium/usage thérapeutique , Hormonothérapie substitutive/méthodes , Humains , Hypoparathyroïdie/étiologie , Mâle , Cancer papillaire de la thyroïde/complications , Cancer papillaire de la thyroïde/chirurgie , Tumeurs de la thyroïde/complications , Tumeurs de la thyroïde/chirurgie , Thyroïdectomie/effets indésirables , Vitamine D/usage thérapeutique
17.
Actual. osteol ; 16(1): 12-25, Ene - abr. 2020. ilus, graf, tab
Article de Espagnol | LILACS | ID: biblio-1130045

RÉSUMÉ

La paratiroidectomía (PTX) es la terapia de elección en el hiperparatiroidismo secundario a enfermedad renal crónica (HPT-ERC) resistente al tratamiento médico. El objetivo del presente estudio fue evaluar el resultado de la PTX a largo plazo y sus factores predictores. Métodos: estudio unicéntrico retrospectivo observacional. Se incluyeron 92 pacientes con HPT-ERC en diálisis, en quienes se realizó la primera PTX en el Hospital Italiano de Buenos Aires entre 2006 y 2015 con seguimiento ≥ 6 meses. Se consideró persistencia del HPTERC con PTH > 300 pg/ml en el semestre posoperatorio, y recidiva con PTH > 500 pg/ml luego. Resultados: edad: 43,6±12,8 años, 50% mujeres, mediana 4,6 años de diálisis, PTH preoperatoria mediana 1639 pg/ml. A 39 se les realizó PTX subtotal (PTXS) y a 53 total con autoimplante (PTXT+AI). Se observó persistencia en 16 pacientes (17,4%). Presentaron recidiva 30 de 76 pacientes con adecuada respuesta inicial (39,5%; IC 95 28,5-50,5). La mediana de tiempo hasta la recidiva fue de 4,7 años (RIC 2,3-7,5). Los pacientes con recidiva presentaron mayor calcemia preoperatoria (mediana 9,9 vs. 9,3 mg/dl, p=0,035; OR ajustado 2,79) y menor elevación de fosfatasa alcalina en el posoperatorio (333 vs. 436 UI/l, p=0,031; OR ajustado 0,99). La recidiva se presentó más frecuentemente luego de la PTXT+AI (48,9%; OR ajustado 4,66), que en la PTXS (25,8%). Conclusiones: el tiempo en diálisis con inadecuado control metabólico constituye el principal factor para la recurrencia del HPT. Se postula que la mayor calcemia preoperatoria está relacionada con un HPT más severo y se asocia a recurrencia. Llamativamente, hallamos menores elevaciones de la fosfatasa alcalina durante el posoperatorio en pacientes con recurrencia. Hipotetizamos que esto pueda asociarse con menor mineralización en el posoperatorio e hiperfosfatemia sostenida, con consecuente estímulo paratiroideo. La menor recurrencia del HPT luego de la PTXS se vincula al sesgo generado en la selección del tipo de cirugía. (AU)


Parathyroidectomy is an effective therapy for refractory secondary hyperparathyroidism (sHPT). Continued dialysis represents risk for recurrent sHPT. The aim of this study was to estimate the proportion of recurrence and determine its predictors. Methods: We conducted a retrospective observational study of 92 adults in chronic dialysis, who underwent their first parathyroidectomy in this center between 2006 and 2015. We considered persistence of sHPT if PTH was > 300 pg/ml during the first postoperative semester, and recurrence if it was > 500 pg/ml afterwards. Results: Age 43.6+-12 y/o, 50% female, 4.6 years on dialysis, median preoperative PTH 1636 pg/ml (IQR 1226-2098). Subtotal parathyroidectomy (sPTX) was performed in 39, Total with autotransplantation (TA-PTX) in 53 patients. Persistence of sHPT occurred in 16 patients; relapse in 30 out of 76 with adequate initially response (39.5%; 95CI 28,5-50,5). Median time to recurrence: 4.7 y. Recurring patients had higher preoperative calcemia (9.9 vs 9.3 mg/dl; adj OR 2.79) and lower postoperative elevation of ALP (333 vs 436 UI/ml; adj OR 0.99). Recurrence presented more frequently in TA-PTX (48.9%; adj OR 4.66) than sPTX (25.8%). Conclusions: Time on dialysis with inadequate metabolic control remains the most important risk factor for sHPT recurrence. Higher preoperative levels of calcemia, related to sHPT severity, are associated with recurrence. Lower elevations of ALP during postoperative period in recurring patients are an interesting finding. We hypothesize that patients with less significant postoperative mineralization may have chronically higher levels of phosphatemia, stimulating parathyroid glands. Fewer recurrence in sPTX is associated to a bias in the procedure selection. (AU)


Sujet(s)
Humains , Mâle , Femelle , Adulte , Adulte d'âge moyen , Sujet âgé , Parathyroïdectomie/statistiques et données numériques , Hyperparathyroïdie secondaire/complications , Récidive , Vitamine D/usage thérapeutique , Calcitriol/analogues et dérivés , Calcitriol/usage thérapeutique , Calcium/sang , Études rétrospectives , Dialyse rénale , Phosphatase alcaline/sang , Insuffisance rénale chronique/étiologie , Insuffisance rénale chronique/thérapie , Hyperparathyroïdie secondaire/chirurgie , Hyperparathyroïdie secondaire/diagnostic , Hyperparathyroïdie secondaire/thérapie
18.
Acta cir. bras ; Acta cir. bras;35(4): e202000404, 2020. tab, graf
Article de Anglais | LILACS | ID: biblio-1130634

RÉSUMÉ

Abstract Purpose To analyze the effect of calcitriol treatment on acute colitis in an experimental rat model. Methods A total of 24 adult Sprague Dawley albino rats were randomly separated into 3 equal groups: control group (n:8), colitis group (n:8), calcitriol administered group (n:8). A single dose of acetic acid (1 ml of 4% solution) was administered intrarectally to induce colitis. Group 1 was given 1 ml/kg 0.9% NaCl intraperitoneally; rats belonging to Group 2 were administered calcitriol 1 µg/kg for 5 days. Results Plasma tumor necrosis factor alpha, Pentraxin 3, and malondialdehyde levels were significantly lower in the calcitriol administered colitis group than in the standard colitis group (p<0.01). In the Calcitriol group, there was a significant histological improvement in hyperemia, hemorrhage and necrotic areas in the epithelium compared to the placebo group (p <0.000). Conclusion The findings suggest that calcitriol may be an agent that could be used in acute colitis treatment.


Sujet(s)
Animaux , Mâle , Calcitriol/usage thérapeutique , Colite/traitement médicamenteux , Anti-inflammatoires/usage thérapeutique , Valeurs de référence , Protéine C-réactive/analyse , Composant sérique amyloïde P/analyse , Peroxydation lipidique , Répartition aléatoire , Maladie aigüe , Reproductibilité des résultats , Facteur de nécrose tumorale alpha/analyse , Résultat thérapeutique , Rat Sprague-Dawley , Colite/sang , Colite/anatomopathologie , Stress oxydatif/génétique , Modèles animaux de maladie humaine , Malonaldéhyde/sang
19.
Sci Rep ; 9(1): 7090, 2019 05 08.
Article de Anglais | MEDLINE | ID: mdl-31068635

RÉSUMÉ

Glycerol injection in rats can lead to rhabdomyolysis, with the release of the intracellular muscle content to the extracellular compartment and acute kidney injury (AKI). Oxidative stress and the inflammatory processes contribute to the disturbances in renal function and structure observed in this model. This study evaluated the effect of calcitriol administration in AKI induced by rhabdomyolysis and its relationship with oxidative damage and inflammatory process. Male Wistar Hannover rats were treated with calcitriol (6 ng/day) or vehicle (0.9% NaCl) for 7 days and were injected with 50% glycerol or saline 3 days after the beginning of calcitriol or saline administration. Four days after glycerol or saline injection, urine, plasma and renal tissue samples were collected for renal function and structural analysis. The oxidative stress and the inflammatory processes were also evaluated. Glycerol-injected rats presented increased sodium fractional excretion and decreased glomerular filtration rates. These alterations were associated with tubular injury in the renal cortex. These animals also presented increased oxidative damage, apoptosis, inflammation, higher urinary excretion of vitamin D-binding protein and decreased cubilin expression in renal tissue. All these alterations were less intense in calcitriol-treated animals. This effect was associated with decreases in oxidative damage and inflammation.


Sujet(s)
Atteinte rénale aigüe/traitement médicamenteux , Atteinte rénale aigüe/étiologie , Calcitriol/usage thérapeutique , Glycérol/pharmacologie , Agents protecteurs/usage thérapeutique , Rhabdomyolyse/induit chimiquement , Rhabdomyolyse/complications , Atteinte rénale aigüe/sang , Atteinte rénale aigüe/urine , Animaux , Apoptose/effets des médicaments et des substances chimiques , Calcitriol/pharmacologie , Calcium/sang , Creatine kinase/sang , Débit de filtration glomérulaire/effets des médicaments et des substances chimiques , Inflammation/traitement médicamenteux , Tests de la fonction rénale , Mâle , Stress oxydatif/effets des médicaments et des substances chimiques , Agents protecteurs/pharmacologie , Rats , Rat Wistar , Protéine de liaison à la vitamine D/urine
20.
Semina Ci. agr. ; 39(5): 2205-2214, Sept.-Oct. 2018. tab, ilus
Article de Anglais | VETINDEX | ID: vti-22678

RÉSUMÉ

Feed supplementation with 1,25-dihydroxycholecalciferol (1,25(OH)2D3) has been studied as a means to decrease the incidence of bone abnormalities in broilers and reduce dietary inclusion of calcium and phosphorus. The objective of this research was to determine the optimal level of feed supplementation with 1,25(OH)2D3 from Solanum glaucophyllum for growing broilers restricted in calcium and available phosphorus. A total of 648 day-old male chicks were distributed in a completely randomized design with six dietary treatments and six replications of 18 birds. Treatments consisted of one positive control (PC: corn-soybean-meal diet formulated to reach or exceed Rostagno et al. (2011) nutritional recommendations), one negative control (NC: PC diet with 15% reduction of calcium and available phosphorus), and four NC diets supplemented with 0.5, 1.0, 1.5, or 2.0 µg kg-¹ of 1,25(OH)2D3. Performance and bone development characteristics were evaluated at days 21 and 33. Negative control did not modify broilers' performance in comparison with PC, but birds fed with NC plus 1.0 µg kg-¹ of 1,25(OH)2D3 showed higher (p=0.01) daily weight gain than PC at day 21. Negative control reduced (p < 0.01) tibia weight, ash, breaking strength, and Seedor index at day 21, but supplementation with 1,25(OH)2D3 mitigated all these negative effects. A quadratic effect of 1,25(OH)2D3 level was found for daily weight gain (p=0.03), tibia weight (p < 0.01), breaking strength (p < 0.01), and Seedor index (p < 0.01) at this age. At day 33, NC broilers still had lower tibia weight (p=0.01), ash (p < 0.01), and Seedor index (p < 0.01) than those fed PC. Only tibia ash did not return to the same value as that observed in PC after NC supplementation with 1,25(OH)2D3. A quadratic effect (p < 0.01) of 1,25(OH)2D3 level was found for tibia ash and Seedor index at this age. On average, dietary supplementation of 1.15 µg kg-¹ of 1,25(OH)2D3 was identified as the optimal level for bone...(AU)


A suplementação da dieta com 1,25-dihidroxicolecalciferol (1,25(OH)2D3) vem sendo estudada como alternativa para redução da incidência de desordens esqueléticas em frangos de corte e diminuição nos níveis dietéticos de cálcio e fósforo. O objetivo deste trabalho foi determinar o melhor nível de inclusão de 1,25(OH)2D3 de origem herbal (Solanum glaucophyllum) para frangos restritos em cálcio e fósforo. Para tanto, 648 pintainhos de corte machos de um dia foram distribuídos em um delineamento inteiramente casualizado com seis tratamentos e seis repetições de 18 aves. Os tratamentos consistiram em um controle positivo (CP: dieta à base de milho e farelo de soja, formulada para atender às recomendações nutricionais de Rostagno et al. (2011), um controle negativo (CN: dieta CP com 15% de redução nos níveis de cálcio e fósforo disponível), e quatro dietas CN suplementadas com 0,5; 1,0; 1,5 ou 2,0 µg kg-¹ de 1,25(OH)2D3. Desempenho produtivo e características ósseas foram avaliados nos dias 21 e 33. O consumo do CN não reduziu o desempenho das aves em comparação ao CP; porém, as aves alimentadas com o CN+1,0 µg kg-¹ de 1,25(OH)2D3 apresentaram maior (p=0,01) ganho de peso do que as alimentadas com o CP aos 21 dias. A dieta CN reduziu (p < 0,01) o peso, a matéria mineral, a força de quebra e o índice de Seedor da tíbia aos 21 dias; porém, a suplementação com 1,25(OH)2D3 reverteu todos esses efeitos adversos. Efeito quadrático dos níveis de 1,25(OH)2D3 foi observado para ganho de peso (p=0,03), peso da tíbia (p < 0.01), força de quebra (p < 0,01), e índice de Seedor (p < 0,01) nessa idade. Aos 33 dias, frangos alimentados com a dieta CN continuaram apresentando menores peso de tíbia (p=0,01), matéria mineral (p < 0,01) e índice de Seedor (p < 0,01) do que os que receberam a dieta CP. Somente a matéria mineral da tíbia não retornou a valor semelhante ao observado nas aves CP após a suplementação com 1,25(OH)2D3. Efeito quadrático (p < 0,01) dos níveis de...(AU)


Sujet(s)
Animaux , Poulets , Solanum glaucophyllum , Calcitriol/usage thérapeutique , Maladies osseuses/médecine vétérinaire , Récepteur calcitriol , Vitamine D , Compléments alimentaires
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