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1.
Artículo en Inglés | MEDLINE | ID: mdl-38497334

RESUMEN

OBJECTIVES: To identify infants with biliary atresia (BA), European Society of Paediatric Gastroenteroloy and Nutrition (ESPGHAN)/North American Society of Pediatric Gastroenteroloy and Nutrition (NASPGHAN) guidelines recommend measurement of conjugated/direct bilirubin in infants with prolonged jaundice and using a stool colour card (SCC). The 'Quality of Care' Task Force of ESPGHAN performed two surveys to assess current case finding for BA and age at Kasai portoenterostomy (KPE). METHODS: The first survey approached 26 European hepatology centres to report age at referral and age at KPE of all infants diagnosed with BA from 2015 to 2019. The second survey targeted paediatricians in France to assess awareness and compliance with the recently introduced SCC. RESULTS: Data from 785 patients with BA from 18 centres in 15 countries revealed a mean age at referral to tertiary centre of 55 days (median 53, IQR 48-60) (n = 636). The mean age at KPE was 61 days (median 60; IQR 54-67) (n = 772). For 6% of patients, cirrhosis was too advanced for surgery. Of 392 paediatricians answering the second survey, 53% felt familiar with the target diseases, 80% correctly identified cholestasis and 59% always inquired about the infant's stool colour. If abnormal, 93% would order blood tests and 85% call for advice. The SCC screening was considered helpful for case finding and improving knowledge of cholestatic diseases by 62% and 45% paediatricians, respectively. CONCLUSIONS: Referral of infants for KPE remains late, indicating low adherence to search for cholestasis in icteric infants by age 2-3 weeks. Knowledge and structures need improvement to allow earlier guideline conform case finding, diagnosis and therapy.

2.
N Engl J Med ; 389(9): 795-807, 2023 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-37646677

RESUMEN

BACKGROUND: Among infants with isolated cleft palate, whether primary surgery at 6 months of age is more beneficial than surgery at 12 months of age with respect to speech outcomes, hearing outcomes, dentofacial development, and safety is unknown. METHODS: We randomly assigned infants with nonsyndromic isolated cleft palate, in a 1:1 ratio, to undergo standardized primary surgery at 6 months of age (6-month group) or at 12 months of age (12-month group) for closure of the cleft. Standardized assessments of quality-checked video and audio recordings at 1, 3, and 5 years of age were performed independently by speech and language therapists who were unaware of the trial-group assignments. The primary outcome was velopharyngeal insufficiency at 5 years of age, defined as a velopharyngeal composite summary score of at least 4 (scores range from 0 to 6, with higher scores indicating greater severity). Secondary outcomes included speech development, postoperative complications, hearing sensitivity, dentofacial development, and growth. RESULTS: We randomly assigned 558 infants at 23 centers across Europe and South America to undergo surgery at 6 months of age (281 infants) or at 12 months of age (277 infants). Speech recordings from 235 infants (83.6%) in the 6-month group and 226 (81.6%) in the 12-month group were analyzable. Insufficient velopharyngeal function at 5 years of age was observed in 21 of 235 infants (8.9%) in the 6-month group as compared with 34 of 226 (15.0%) in the 12-month group (risk ratio, 0.59; 95% confidence interval, 0.36 to 0.99; P = 0.04). Postoperative complications were infrequent and similar in the 6-month and 12-month groups. Four serious adverse events were reported (three in the 6-month group and one in the 12-month group) and had resolved at follow-up. CONCLUSIONS: Medically fit infants who underwent primary surgery for isolated cleft palate in adequately resourced settings at 6 months of age were less likely to have velopharyngeal insufficiency at the age of 5 years than those who had surgery at 12 months of age. (Funded by the National Institute of Dental and Craniofacial Research; TOPS ClinicalTrials.gov number, NCT00993551.).


Asunto(s)
Fisura del Paladar , Insuficiencia Velofaríngea , Preescolar , Humanos , Lactante , Técnicos Medios en Salud , Fisura del Paladar/complicaciones , Fisura del Paladar/cirugía , Europa (Continente) , Complicaciones Posoperatorias/epidemiología , Insuficiencia Velofaríngea/diagnóstico , Insuficiencia Velofaríngea/etiología , América del Sur , Técnicas de Diagnóstico Quirúrgico
3.
JHEP Rep ; 5(2): 100626, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36687469

RESUMEN

Background & Aims: Bile salt export pump (BSEP) deficiency frequently necessitates liver transplantation in childhood. In contrast to two predicted protein truncating mutations (PPTMs), homozygous p.D482G or p.E297G mutations are associated with relatively mild phenotypes, responsive to surgical interruption of the enterohepatic circulation (siEHC). The phenotype of patients with a compound heterozygous genotype of one p.D482G or p.E297G mutation and one PPTM has remained unclear. We aimed to assess their genotype-phenotype relationship. Methods: From the NAPPED database, we selected patients with homozygous p.D482G or p.E297G mutations (BSEP1/1; n = 31), with one p.D482G or p.E297G, and one PPTM (BSEP1/3; n = 30), and with two PPTMs (BSEP3/3; n = 77). We compared clinical presentation, native liver survival (NLS), and the effect of siEHC on NLS. Results: The groups had a similar median age at presentation (0.7-1.3 years). Overall NLS at age 10 years was 21% in BSEP1/3 vs. 75% in BSEP1/1 and 23% in BSEP3/3 (p <0.001). Without siEHC, NLS in the BSEP1/3 group was similar to that in BSEP3/3, but considerably lower than in BSEP1/1 (at age 10 years: 38%, 30%, and 71%, respectively; p = 0.003). After siEHC, BSEP1/3 and BSEP3/3 were associated with similarly low NLS, while NLS was much higher in BSEP1/1 (10 years after siEHC, 27%, 14%, and 92%, respectively; p <0.001). Conclusions: Individuals with BSEP deficiency with one p.E297G or p.D482G mutation and one PPTM have a similarly severe disease course and low responsiveness to siEHC as those with two PPTMs. This identifies a considerable subgroup of patients who are unlikely to benefit from interruption of the enterohepatic circulation by either surgical or ileal bile acid transporter inhibitor treatment. Impact and implications: This manuscript defines the clinical features and prognosis of individuals with BSEP deficiency involving the combination of one relatively mild and one very severe BSEP deficiency mutation. Until now, it had always been assumed that the mild mutation would be enough to ensure a relatively good prognosis. However, our manuscript shows that the prognosis of these patients is just as poor as that of patients with two severe mutations. They do not respond to biliary diversion surgery and will likely not respond to the new IBAT (ileal bile acid transporter) inhibitors, which have recently been approved for use in BSEP deficiency.

4.
Clin Linguist Phon ; 37(1): 77-98, 2023 01 02.
Artículo en Inglés | MEDLINE | ID: mdl-35100923

RESUMEN

Canonical babbling (CB) is commonly defined as present when at least 15% of all syllables produced are canonical, in other words a canonical babbling ratio (CBR) ≥0.15. However, there is limited knowledge about inter-rater reliability in classification of CB status based on CBR and inter-rater differences in assessment of CBR. We investigated inter-rater reliability of experienced Speech Language Therapists (SLTs) on: classification of CB status based on CBR ≥ 0.15, CBRs and the total number of syllables per infant used to calculate CBR.Each infant (n = 484) was video-recorded at a clinical site in play interaction with their parent as part of the randomised controlled trial Timing of Primary Surgery for Cleft Palate. Each recording was subsequently assessed by three independent SLTs, from a pool of 29 SLTs. They assessed the recordings in real time.The three assessing SLTs agreed in classification of CB status in 423 (87.4%) infants, with higher complete agreement for canonical (91%; 326/358) than non-canonical (77%; 97/126). The average difference in CBR and total number of syllables identified between the SLT assessments of each infant was 0.12 and 95, respectively.This study provided new evidence that one trained SLT can reliably classify CB status (CBR ≥ 0.15) in real time when there is clear distinction between the observed CBR and the boundary (0.15); however, when the observed CBR approaches the boundary multiple SLT assessments are beneficial. Thus, we recommend to include assessment of inter-rater reliability, if the purpose is to compare CBR and total syllable count across infants or studies.Trial registration number here: www.clinicaltrials.gov, identifier NCT00993551.


Asunto(s)
Fisura del Paladar , Lactante , Humanos , Niño , Fisura del Paladar/cirugía , Reproducibilidad de los Resultados , Lenguaje Infantil , Trastornos del Habla
5.
GE Port J Gastroenterol ; 29(3): 192-196, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35702165

RESUMEN

Introduction: Sickle cell intrahepatic cholestasis (SCIC) is one of the rarest and the most severe acute hepatic manifestations of sickle cell disease (SCD) and it can rapidly progress to acute liver failure. It is associated with a high mortality rate, demanding prompt recognition and management. Case Presentation: We report a case of a 7-year-old boy with a history of homozygous HbS SCD who presented to the emergency department with fever, increasing abdominal pain, and jaundice. His course was complicated by acute liver injury (AST 9,472 IU/L, ALT 2,683 IU/L, total bilirubin 15.4 mg/dL; conjugated bilirubin 8.69 mg/dL, hypoalbuminemia 2.6 g/dL, and persistent hypoglycemia), with acute liver failure (coagulopathy not corrected by vitamin K administration with INR 3.26, decreased factors V 10% and VII 28%, and West Haven grade I hepatic encephalopathy associated with mild hyperammonemia of 71 µmol/L). After excluding other causes of acute liver failure, the patient was diagnosed as having SCIC and was successfully treated with manual exchange transfusion. Conclusion: This case reinforces that exchange transfusion is an effective treatment for SCIC and that it should be introduced promptly to prevent fulminant and potentially fatal liver failure.


Introdução: A colestase intra-hepática falciforme (CIHF) é uma das manifestações hepáticas agudas mais raras e graves da doença de células falciformes (DCF), que pode progredir rapidamente para falência hepática aguda. Associa-se a uma elevada taxa de mortalidade, que exige identificação e intervenção imediatas. Caso clínico: Descreve-se o caso de um rapaz de 7 anos com DCF, homozigótico para a HbS, que recorreu ao serviço de urgência por febre, dor abdominal de agravamento progressivo e icterícia. Verificou-se evolução para lesão hepática aguda (AST 9,472 UI/L, ALT 2,683 UI/L, bilirrubina total 15.4 mg/dL; bilirrubina conjugada 8.69 mg/dL, hipoalbuminemia 2.6 g/dL, hipoglicemia persistente), com falência hepática aguda (coagulopatia não corrigida por administração de vitamina K com INR 3.26, diminuição dos fatores V 10% e VII 28%, assim como encefalopatia grau I (critérios de West Haven) e hiperamoniemia ligeira 71 µmol/L). Após exclusão de outras etiologias de falência hepática aguda, o doente foi diagnosticado com CIHF e realizada exsanguineo-transfusão manual, com sucesso. Discussão/Conclusão: Este caso reforça que a exsanguineotransfusão é uma terapêutica eficaz na CIHF, que deve ser instituída precocemente para prevenir falência hepática fulminante e potencialmente fatal.

6.
JPGN Rep ; 3(3): e216, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37168635

RESUMEN

When therapy with hepatotoxic drugs is being considered, all other possible contributing agents of liver damage should be held to account. While not generally considered a risk factor, we present 2 cases in which ketogenic diet (KD) may have played a role in liver injury due to antituberculosis drugs. Ketogenic diet has been linked to liver injury, and while its pathophysiology remains obscure, carnitine depletion could play a role, as it is a mechanism of liver damage common to KD and antituberculosis drug regimens.

7.
Rev. méd. Minas Gerais ; 32: 32112, 2022.
Artículo en Portugués | LILACS | ID: biblio-1426464

RESUMEN

Introdução: O diabetes mellitus tipo 1 (DM1) é uma das doenças crônicas mais comuns da infância. O adequado controle do DM1 engloba uma ação multidisciplinar e envolve ambientes nos quais as crianças passam grande parte do tempo do seu dia, as escolas. Objetivos: Identificar a realidade vivenciada pelo aluno com diabetes no ambiente escolar sob a visão dos pais ou responsáveis. Métodos: Aplicado um questionário a 200 pais ou responsáveis por alunos com diabetes matriculados na educação infantil, nos ensinos fundamental e médio de escolas públicas e privadas de Belo Horizonte, compreendidos entre a faixa etária dos quatro aos dezoito anos. Resultados: A escolha da escola pelos pais foi influenciada pelo fato da criança ter diabetes em 16,5% dos casos. Houve negação inicial de matrícula. Foram necessárias explicações sobre o DM1 para os professores em 67,5% dos casos. Para 74,5% dos pais, os professores das escolas envolvidas não possuem o conhecimento necessário sobre diabetes. A maioria das crianças tem a permissão para realizar a glicemia capilar em sala de aula. Cerca de 54,5% dos alunos com diabetes fazem o uso de insulina na escola, entretanto, grande parte delas não oferecem um local específico para tal procedimento. A merenda escolar foi considerada inadequada. Houve relato de bullying. Alguns foram impedidos de participarem de excursões e até mesmo da educação física. Conclusão: Os alunos com DM1 vivenciam uma realidade inadequada no ambiente escolar. A maioria das escolas não está preparada do ponto de vista técnico e estrutural para receber estas crianças.


Introduction: Type 1 diabetes mellitus (DM1) is one of the most common chronic diseases in childhood. Proper control of DM1 encompasses a multidisciplinary action and involves environments in which children spend much of their day, such as schools. Objectives: To identify the reality experienced by students with diabetes in the school environment from the perspective of parents or guardians. Methods: A questionnaire was applied for 200 parents or guardians of students with diabetes enrolled in early childhood education, in the elementary and high schools of public and private schools in Belo Horizonte, in the age group of four to eighteen years. Results: The parents' choice of school was influenced by the fact that the child had diabetes in 16.5% of cases. There was an initial denial of registration on school. Explanations about DM1 were needed for teachers in 67.5% of cases. For 74.5% of parents, school teachers do not have the necessary knowledge about diabetes. Most children are allowed to take capillary blood glucose in the classroom. About 54.5% of students with diabetes use insulin at school, however, in most of them there are not a specific place for such procedure. The school meal was considered inadequate. There was a bullying relationship. Some students were prevented from getting involved in extracurricular activities such as excursions and in physical education. Conclusion: Students with DM1 experience an inadequate reality in the school environment. Most schools are not technically and structurally prepared to receive these children.


Asunto(s)
Humanos , Masculino , Femenino , Preescolar , Niño , Adolescente , Servicios de Salud Escolar , Instituciones Académicas , Alimentación Escolar , Diabetes Mellitus Tipo 1/dietoterapia , Diabetes Mellitus Tipo 1/prevención & control , Determinantes Sociales de la Salud , Padres , Estudiantes , Maestros , Control Glucémico/métodos , Hiperglucemia , Hipoglucemia
8.
Children (Basel) ; 8(8)2021 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-34438552

RESUMEN

(1) Background: Post-transplant lymphoproliferative disease (PTLD) is a significant complication of solid organ transplantation (SOT). However, there is lack of consensus in PTLD management. Our aim was to establish a present benchmark for comparison between international centers and between various organ transplant systems and modalities; (2) Methods: A cross-sectional questionnaire of relevant PTLD practices in pediatric transplantation was sent to multidisciplinary teams from 17 European center members of ERN TransplantChild to evaluate the centers' approach strategies for diagnosis and treatment and how current practices impact a cross-sectional series of PTLD cases; (3) Results: A total of 34 SOT programs from 13 European centers participated. The decision to start preemptive treatment and its guidance was based on both EBV viremia monitoring plus additional laboratory methods and clinical assessment (61%). Among treatment modalities the most common initial practice at diagnosis was to reduce the immunosuppression (61%). A total of 126 PTLD cases were reported during the period 2012-2016. According to their histopathological classification, monomorphic lesions were the most frequent (46%). Graft rejection after PTLD remission was 33%. Of the total cases diagnosed with PTLD, 88% survived; (4) Conclusions: There is still no consensus on prevention and treatment of PTLD, which implies the need to generate evidence. This might successively allow the development of clinical guidelines.

9.
J Steroid Biochem Mol Biol ; 212: 105950, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34271024

RESUMEN

A new promising steroid derivative of Exemestane (Exe), the drug used for the treatment of estrogen-dependent breast cancer, was synthesized and evaluated against a set of human cancer cell lines. The new compound (Oxymestane-D1, Oxy) was tested comparatively with Exe against colon (C2BBe1, WiDr), liver (HepG2, HuH-7), lung (A549, H1299) and prostate (LNCaP, PC3) human cancer cell lines. Likewise, its effect on human colon normal cells (CCD-841 CoN) and human normal fibroblast cells (HFF-1) was studied. The cytostatic activity of Oxy was also compared with that of the reference cytostatic drugs used in chemotherapy protocols, namely carboplatin, cisplatin, doxorubicin, epirubicin, etoposide, flutamide, 5-fluorouracil, irinotecan, oxaliplatin and sorafenib. In all cell lines tested, Oxy proved to be more powerful cytostatic than Exe. Additionally, the IC50 at 72 h showed a three-fold activity greater than 5-fluorouracil in the WiDr cell line, twice as high as cisplatin for cell line A549 and five times higher than cisplatin for cell line H1299. Also, Oxy surprisingly revealed to induce DNA damage and inhibit the DNA damage response (DDR) proteins ATM, ATR, CHK1 and CHK2. The results obtained allow concluding that Oxy can be a promising anticancer agent to be used in chemotherapy protocols. Furthermore, its ability to inhibit crucial components of DDR can also be useful for the monotherapy or for combination with chemo and/or radiotherapy of cancer.


Asunto(s)
Androstadienos/farmacología , Antineoplásicos/farmacología , Citostáticos/farmacología , Neoplasias/tratamiento farmacológico , Ciclo Celular/efectos de los fármacos , Línea Celular , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Daño del ADN , Estrógenos , Humanos , Potencial de la Membrana Mitocondrial/efectos de los fármacos , Neoplasias/metabolismo , Proteínas Serina-Treonina Quinasas/metabolismo
10.
Front Vet Sci ; 8: 666283, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33981748

RESUMEN

The molecular typing of Mycobacterium bovis, which causes bovine tuberculosis, can be accomplished by combining different polymorphic markers, contributing to its epidemiological investigation. Multispacer sequence typing (MST) is a sequencing-based method that employs intergenic regions susceptible to higher mutation rates given the low selection pressure. It has been applied to M. tuberculosis, but not to M. bovis. The aim of this study was to evaluate a MST for M. bovis. A total of 58 strains isolated from tissues with lesions suggestive of bovine tuberculosis, coming from cattle herds in six Brazilian states and four standard samples of M. bovis were typified employing the MST technique. Fourteen intergenic regions were used, and four types of genetic events were reported: single nucleotide mutation (SNP), insertion, deletion, and tandem repeat (TR). Seven loci were chosen for typing. Twenty-eight type sequences (ST) were identified, indicating type sequences (ST) were identified, indicating a 92.9% HGDI (Hunter Gaston Discriminatory Index). The data were used to analyze the evolutionary patterns of these isolates and correlate them to phylogeographic lineages based on the formation of clonal complexes generated from eBURST software. Later, we associated the MST with spoligotyping technique, currently considered the gold standard for classification of M. bovis. The results support the MST as an alternative method for genotyping of M. bovis. The method has the advantage of sequencing and the availability of sequences analyzed in public databases, which can be used by professionals around the world as a tool for further analysis. This was the first study to identify the variability of isolates of M. bovis by the MST method.

11.
Hepatology ; 74(2): 892-906, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-33666275

RESUMEN

BACKGROUND AND AIMS: Mutations in ATPase phospholipid transporting 8B1 (ATP8B1) can lead to familial intrahepatic cholestasis type 1 (FIC1) deficiency, or progressive familial intrahepatic cholestasis type 1. The rarity of FIC1 deficiency has largely prevented a detailed analysis of its natural history, effects of predicted protein truncating mutations (PPTMs), and possible associations of serum bile acid (sBA) concentrations and surgical biliary diversion (SBD) with long-term outcome. We aimed to provide insights by using the largest genetically defined cohort of patients with FIC1 deficiency to date. APPROACH AND RESULTS: This multicenter, combined retrospective and prospective study included 130 patients with compound heterozygous or homozygous predicted pathogenic ATP8B1 variants. Patients were categorized according to the number of PPTMs (i.e., splice site, frameshift due to deletion or insertion, nonsense, duplication), FIC1-A (n = 67; no PPTMs), FIC1-B (n = 29; one PPTM), or FIC1-C (n = 34; two PPTMs). Survival analysis showed an overall native liver survival (NLS) of 44% at age 18 years. NLS was comparable among FIC1-A, FIC1-B, and FIC1-C (% NLS at age 10 years: 67%, 41%, and 59%, respectively; P = 0.12), despite FIC1-C undergoing SBD less often (% SBD at age 10 years: 65%, 57%, and 45%, respectively; P = 0.03). sBAs at presentation were negatively associated with NLS (NLS at age 10 years, sBAs < 194 µmol/L: 49% vs. sBAs ≥ 194 µmol/L: 15%; P = 0.03). SBD decreased sBAs (230 [125-282] to 74 [11-177] µmol/L; P = 0.005). SBD (HR 0.55, 95% CI 0.28-1.03, P = 0.06) and post-SBD sBA concentrations < 65 µmol/L (P = 0.05) tended to be associated with improved NLS. CONCLUSIONS: Less than half of patients with FIC1 deficiency reach adulthood with native liver. The number of PPTMs did not associate with the natural history or prognosis of FIC1 deficiency. sBA concentrations at initial presentation and after SBD provide limited prognostic information on long-term NLS.


Asunto(s)
Adenosina Trifosfatasas/deficiencia , Ácidos y Sales Biliares/sangre , Colestasis Intrahepática/mortalidad , Adenosina Trifosfatasas/genética , Adolescente , Conductos Biliares Intrahepáticos/cirugía , Niño , Preescolar , Colestasis Intrahepática/sangre , Colestasis Intrahepática/genética , Colestasis Intrahepática/cirugía , Codón sin Sentido , Femenino , Estudios de Seguimiento , Humanos , Lactante , Trasplante de Hígado/estadística & datos numéricos , Masculino , Pronóstico , Estudios Prospectivos , Estudios Retrospectivos , Medición de Riesgo/métodos , Medición de Riesgo/estadística & datos numéricos , Análisis de Supervivencia , Resultado del Tratamiento , Adulto Joven
12.
J Hepatol ; 73(1): 84-93, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32087350

RESUMEN

BACKGROUND & AIMS: Mutations in ABCB11 can cause deficiency of the bile salt export pump (BSEP), leading to cholestasis and end-stage liver disease. Owing to the rarity of the disease, the associations between genotype and natural history, or outcomes following surgical biliary diversion (SBD), remain elusive. We aimed to determine these associations by assembling the largest genetically defined cohort of patients with severe BSEP deficiency to date. METHODS: This multicentre, retrospective cohort study included 264 patients with homozygous or compound heterozygous pathological ABCB11 mutations. Patients were categorized according to genotypic severity (BSEP1, BSEP2, BSEP3). The predicted residual BSEP transport function decreased with each category. RESULTS: Genotype severity was strongly associated with native liver survival (NLS, BSEP1 median 20.4 years; BSEP2, 7.0 years; BSEP3, 3.5 years; p <0.001). At 15 years of age, the proportion of patients with hepatocellular carcinoma was 4% in BSEP1, 7% in BSEP2 and 34% in BSEP3 (p = 0.001). SBD was associated with significantly increased NLS (hazard ratio 0.50; 95% CI 0.27-0.94: p = 0.03) in BSEP1 and BSEP2. A serum bile acid concentration below 102 µmol/L or a decrease of at least 75%, each shortly after SBD, reliably predicted NLS of ≥15 years following SBD (each p <0.001). CONCLUSIONS: The genotype of severe BSEP deficiency strongly predicts long-term NLS, the risk of developing hepatocellular carcinoma, and the chance that SBD will increase NLS. Serum bile acid parameters shortly after SBD can predict long-term NLS. LAY SUMMARY: This study presents data from the largest genetically defined cohort of patients with severe bile salt export pump deficiency to date. The genotype of patients with severe bile salt export pump deficiency is associated with clinical outcomes and the success of therapeutic interventions. Therefore, genotypic data should be used to guide personalized clinical care throughout childhood and adulthood in patients with this disease.


Asunto(s)
Miembro 11 de la Subfamilia B de Transportador de Casetes de Unión al ATP/deficiencia , Ácidos y Sales Biliares , Procedimientos Quirúrgicos del Sistema Biliar/métodos , Carcinoma Hepatocelular , Colestasis Intrahepática , Miembro 11 de la Subfamilia B de Transportador de Casetes de Unión al ATP/genética , Adulto , Ácidos y Sales Biliares/sangre , Ácidos y Sales Biliares/metabolismo , Procedimientos Quirúrgicos del Sistema Biliar/estadística & datos numéricos , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/prevención & control , Preescolar , Colestasis Intrahepática/diagnóstico , Colestasis Intrahepática/genética , Colestasis Intrahepática/fisiopatología , Colestasis Intrahepática/cirugía , Femenino , Pruebas Genéticas/métodos , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/prevención & control , Masculino , Mutación , Valor Predictivo de las Pruebas , Pronóstico , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Análisis de Supervivencia , Tiempo
13.
Int J Oncol ; 56(3): 709-727, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31922240

RESUMEN

Cholangiocarcinoma (CC) is an aggressive liver tumor with limited therapeutic options. Natrium­iodide symporter (NIS) mediates the uptake of iodine by the thyroid, representing a key component in metabolic radiotherapy using iodine­131 (131I) for the treatment of thyroid cancer. NIS expression is increased in CC, providing the opportunity for a novel therapeutic approach for this type of tumor. Thus, in this study, we aimed to evaluate therapeutic efficacy of 131I in two human CC cell lines. Uptake experiments analyzed the 131I uptake profiles of the tumor cell lines under study. The cells were irradiated with various doses of 131I to evaluate and characterize the effects of metabolic radiotherapy. NIS protein expression was assessed by immunofluorescence methods. Cell survival was evaluated by clonogenic assay and flow cytometry was used to assess cell viability, and the type of death and alterations in the cell cycle. The genomic and epigenetic characterization of both CC cells was performed before and after irradiation. NIS gene expression was evaluated in the CC cells by RT­qPCR. The results revealed that CC cells had a higher expression of NIS. 131I induced a decrease in cell survival in a dose­dependent manner. With the increasing irradiation dose, a decrease in cell viability was observed, with a consequent increase in cell death by initial apoptosis. Karyotype and array comparative genomic hybridization (aCGH) analyses revealed that both CC cell lines were near­triploid with several numerical and structural chromosomal rearrangements. NIS gene expression was increased in the TFK­1 and HuCCT1 cells in a time­dependent manner. On the whole, the findings of this study demonstrate that the presence of NIS in cholangiocarcinoma cell lines is crucial for the decreased cell viability and survival observed following the exposure of cholangiocarcinoma cells to 131I.


Asunto(s)
Neoplasias de los Conductos Biliares/radioterapia , Muerte Celular/efectos de la radiación , Colangiocarcinoma/fisiopatología , Variación Estructural del Genoma/efectos de la radiación , Radioisótopos de Yodo/uso terapéutico , Simportadores/genética , Neoplasias de los Conductos Biliares/genética , Neoplasias de los Conductos Biliares/patología , Ciclo Celular/efectos de la radiación , Línea Celular Tumoral , Supervivencia Celular/efectos de la radiación , Colangiocarcinoma/genética , Colangiocarcinoma/patología , Colangiocarcinoma/radioterapia , Variaciones en el Número de Copia de ADN/efectos de la radiación , Metilación de ADN/efectos de la radiación , Relación Dosis-Respuesta en la Radiación , Regulación Neoplásica de la Expresión Génica/efectos de la radiación , Humanos , Radioisótopos de Yodo/farmacocinética , Simportadores/metabolismo
15.
J Bras Pneumol ; 45(3): e20180314, 2019 Jun 27.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-31271604

RESUMEN

Smoking is the leading cause of respiratory disease (RD). The harmful effects of smoking on the respiratory system begin in utero and influence immune responses throughout childhood and adult life. In comparison with "healthy" smokers, smokers with RD have peculiarities that can impede smoking cessation, such as a higher level of nicotine dependence; nicotine withdrawal; higher levels of exhaled carbon monoxide; low motivation and low self-efficacy; greater concern about weight gain; and a high prevalence of anxiety and depression. In addition, they require more intensive, prolonged treatment. It is always necessary to educate such individuals about the fact that quitting smoking is the only measure that will reduce the progression of RD and improve their quality of life, regardless of the duration and severity of the disease. Physicians should always offer smoking cessation treatment. Outpatient or inpatient smoking cessation treatment should be multidisciplinary, based on behavioral interventions and pharmacotherapy. It will thus be more effective and cost-effective, doubling the chances of success.


Asunto(s)
Enfermedades Respiratorias/etiología , Enfermedades Respiratorias/terapia , Cese del Hábito de Fumar , Fumar/efectos adversos , Tabaquismo/complicaciones , Humanos , Neoplasias Pulmonares/etiología , Neoplasias Pulmonares/terapia , Enfermedad Pulmonar Obstructiva Crónica/etiología , Enfermedad Pulmonar Obstructiva Crónica/terapia , Factores de Riesgo , Tabaquismo/terapia , Tuberculosis Pulmonar/etiología , Tuberculosis Pulmonar/terapia
16.
Ann Hematol ; 98(7): 1689-1701, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30963200

RESUMEN

Patients older than 75 years old with multiple myeloma (MM) have shorter survival and are usually treated differently from what features in clinical trials. In this study, the authors characterized the Portuguese population of MM patients above 75 years old, treated between 2009 and 2016. We compared the outcomes obtained with bortezomib-based protocols (BBP), thalidomide-based protocols (TBP), and chemotherapy (CT) using univariate and multivariate controlling for age, performance status, International Staging System score, renal impairment, and number of comorbidities. We retrieved data from 386 patients, treated in 12 hospitals. Three hundred thirty-one cases were analyzed: 119 patients treated with BBP, 65 with TBP, 147 with CT. Median age was 79 years; CT-treated patients were older, had a worse performance status, and have more comorbidities. The median follow-up was 25 months. The 2-year OS was 58% and the median OS was 29.5 months. Patients treated with BBP had more frequently very good partial response (VGPR) or better response, and the subgroup of more fit patients had a significantly longer progression-free survival (PFS) and OS. The most frequently grade 3-4 toxicities were hematologic, infectious, and neurologic and were significantly lower in TBP and CT groups vs BBP. The most common second line was CT, followed by lenalidomide. Patients treated with lenalidomide had a higher probability of VGPR or better and a superior 1-year PFS. Despite the limitations of a retrospective study, our cohort represents the reality of older patients with MM in a western country. The hazard of death or progression was higher for old, fit patients treated, in first line, with CT and with TBP compared with that of BBP.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Mieloma Múltiple , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Mieloma Múltiple/tratamiento farmacológico , Mieloma Múltiple/mortalidad , Mieloma Múltiple/patología , Estadificación de Neoplasias , Portugal/epidemiología , Tasa de Supervivencia
17.
J. bras. pneumol ; 45(3): e20180314, 2019. tab
Artículo en Inglés | LILACS | ID: biblio-1012558

RESUMEN

ABSTRACT Smoking is the leading cause of respiratory disease (RD). The harmful effects of smoking on the respiratory system begin in utero and influence immune responses throughout childhood and adult life. In comparison with "healthy" smokers, smokers with RD have peculiarities that can impede smoking cessation, such as a higher level of nicotine dependence; nicotine withdrawal; higher levels of exhaled carbon monoxide; low motivation and low self-efficacy; greater concern about weight gain; and a high prevalence of anxiety and depression. In addition, they require more intensive, prolonged treatment. It is always necessary to educate such individuals about the fact that quitting smoking is the only measure that will reduce the progression of RD and improve their quality of life, regardless of the duration and severity of the disease. Physicians should always offer smoking cessation treatment. Outpatient or inpatient smoking cessation treatment should be multidisciplinary, based on behavioral interventions and pharmacotherapy. It will thus be more effective and cost-effective, doubling the chances of success.


RESUMO O tabagismo é o maior responsável pelas doenças respiratórias (DR). Os efeitos nocivos do tabaco sobre o aparelho respiratório se iniciam ainda intraútero e influenciam as respostas imunológicas ao longo da infância e vida adulta. Os tabagistas com DR possuem peculiaridades que podem dificultar a cessação tabágica, tais como maior grau de dependência e de abstinência de nicotina; níveis mais elevados de monóxido de carbono exalado; motivação e autoeficácia baixas; maior preocupação com ganho ponderal; e elevada prevalência de ansiedade e depressão. Além disso, requerem tratamento mais intensivo e prolongado. É necessário esclarecer sempre o paciente sobre o fato de que parar de fumar será a única medida que irá reduzir a progressão das DR e melhorar sua qualidade de vida, independentemente do tempo e da gravidade da doença. Os médicos devem sempre oferecer o tratamento de cessação tabágica. O tratamento ambulatorial ou hospitalar deve ser multidisciplinar, baseado em intervenções comportamentais e farmacoterapia, sendo eficaz e custo-efetivo, dobrando as chances de sucesso.


Asunto(s)
Humanos , Enfermedades Respiratorias/etiología , Enfermedades Respiratorias/terapia , Tabaquismo/complicaciones , Fumar/efectos adversos , Cese del Hábito de Fumar , Tabaquismo/terapia , Tuberculosis Pulmonar/etiología , Tuberculosis Pulmonar/terapia , Factores de Riesgo , Enfermedad Pulmonar Obstructiva Crónica/etiología , Enfermedad Pulmonar Obstructiva Crónica/terapia , Neoplasias Pulmonares/etiología , Neoplasias Pulmonares/terapia
18.
BMJ Case Rep ; 20172017 Dec 13.
Artículo en Inglés | MEDLINE | ID: mdl-29237659

RESUMEN

Prognosis of hepatitis-associated aplastic anaemia (HAAA) was improved with haematopoietic stem cell transplantation (HSCT) and immunosuppression, but the long-term outcome remains undefined. Case 1: a girl aged 3 years with acute liver failure (ALF) submitted to orthotopic liver transplantation (OLT) subsequently developed aplastic anaemia and HSCT from a compatible sibling was performed. Post-HSCT, the patient developed post-transplant lymphoproliferative disorder and rituximab was administered with good response. Fifteen years later, both grafts show good outcome. Case 2: a girl aged 10 years submitted to OLT due to ALF, developed pancytopenia 2 months later. Due to the absence of a human leucocyte antigen compatible donor, she was treated with ciclosporin and antithymocyte globulin with very good long-term outcome. These clinical cases suggest that, for patients with HAAA that underwent OLT, aggressive therapy with HSCT or immunosuppression may provide a benign long-term outcome.


Asunto(s)
Anemia Aplásica/diagnóstico , Hepatitis/diagnóstico , Fallo Hepático Agudo , Trasplante de Hígado , Aciclovir/administración & dosificación , Aciclovir/uso terapéutico , Anemia Aplásica/complicaciones , Anemia Aplásica/tratamiento farmacológico , Antivirales/administración & dosificación , Antivirales/uso terapéutico , Niño , Preescolar , Diagnóstico Diferencial , Femenino , Estudios de Seguimiento , Trasplante de Células Madre Hematopoyéticas , Hepatitis/complicaciones , Hepatitis/tratamiento farmacológico , Humanos , Complicaciones Posoperatorias/diagnóstico
20.
Biota Neotrop. (Online, Ed. ingl.) ; 17(4): e20170377, 2017. tab
Artículo en Inglés | LILACS | ID: biblio-951131

RESUMEN

Abstract In recent decades, current knowledge about fish from Neotropical streams has greatly increased, but is still deficient. Here we present an identification key for fishes from coastal freshwater streams from a large conservation area of Atlantic rainforest of southeastern Brazil, including 39 species. Considering that most of these species (61.2%) are endemic to the coastal streams, this identification key will be useful not only for the species recognition of the sampled area, but also for the surrounding coastal region.


Resumo Nas últimas décadas, o conhecimento acerca dos peixes de riachos neotropicais aumentou consideravelmente, mas apesar disso ainda é deficiente. Apresentamos aqui uma chave de identificação para as 39 espécies de peixes de uma grande unidade de conservação da Mata Atlântica do sudeste do Brasil. Considerando que a maioria destas espécies (61,2%) são endêmicas dos riachos costeiros, esta chave de identificação será útil não só para o reconhecimento de espécies da área amostrada, mas também da região costeira do entorno.

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