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1.
Braz J Med Biol Res ; 56: e12671, 2023.
Article in English | MEDLINE | ID: mdl-36995875

ABSTRACT

In biliary atresia (BA), efforts to prevent premature liver transplantation (LT) are aimed at early diagnosis, timing of Kasai-portoenterostomy (KPE), and centralization of care. This report presents the clinical picture, treatment strategies, and outcomes of BA patients with no previous treatment. A retrospective cohort study (Jan/2001 to Jan/2021) was conducted to evaluate the outcome of patients with BA referred to a single team. Study groups were: 1) Kasai-only group (K-only) n=9), 2) LT-only group (n=7), and 3) Kasai+LT group (K+LT) (n=23). Survival with native liver and overall survival were 22.9 and 94.8%, respectively, at 120 months of follow-up. There was no difference in age at KPE in the K-only group (46.8±21.8 days) vs K+LT (52.1±22 days), P=0.4. Ten (25.6%) patients were babies conceived through in vitro fertilization (IVF). Four IVF patients (40%) presented associated congenital heart disease vs 5 patients (17%) in the remaining group (P=0.14). Two of the IVF patients were premature (<37 weeks). Median maternal age at birth was 35 years (33 to 41 years). Excellent patient survival is expected for patients with BA with the available treatment strategies. IVF+BA was an unexpected prevalent association in this cohort, and further studies are required to better understand these findings.


Subject(s)
Biliary Atresia , Premature Birth , Infant , Infant, Newborn , Female , Humans , Adult , Biliary Atresia/surgery , Biliary Atresia/complications , Biliary Atresia/diagnosis , Portoenterostomy, Hepatic/adverse effects , Retrospective Studies , Treatment Outcome , Fertilization in Vitro
2.
Braz. j. med. biol. res ; 56: e12671, 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1430017

ABSTRACT

In biliary atresia (BA), efforts to prevent premature liver transplantation (LT) are aimed at early diagnosis, timing of Kasai-portoenterostomy (KPE), and centralization of care. This report presents the clinical picture, treatment strategies, and outcomes of BA patients with no previous treatment. A retrospective cohort study (Jan/2001 to Jan/2021) was conducted to evaluate the outcome of patients with BA referred to a single team. Study groups were: 1) Kasai-only group (K-only) n=9), 2) LT-only group (n=7), and 3) Kasai+LT group (K+LT) (n=23). Survival with native liver and overall survival were 22.9 and 94.8%, respectively, at 120 months of follow-up. There was no difference in age at KPE in the K-only group (46.8±21.8 days) vs K+LT (52.1±22 days), P=0.4. Ten (25.6%) patients were babies conceived through in vitro fertilization (IVF). Four IVF patients (40%) presented associated congenital heart disease vs 5 patients (17%) in the remaining group (P=0.14). Two of the IVF patients were premature (<37 weeks). Median maternal age at birth was 35 years (33 to 41 years). Excellent patient survival is expected for patients with BA with the available treatment strategies. IVF+BA was an unexpected prevalent association in this cohort, and further studies are required to better understand these findings.

3.
Braz. j. med. biol. res ; 47(6): 522-526, 06/2014. tab, graf
Article in English | LILACS | ID: lil-709451

ABSTRACT

Maple syrup urine disease (MSUD) is an autosomal recessive disease associated with high levels of branched-chain amino acids. Children with MSUD can present severe neurological damage, but liver transplantation (LT) allows the patient to resume a normal diet and avoid further neurological damage. The use of living related donors has been controversial because parents are obligatory heterozygotes. We report a case of a 2-year-old child with MSUD who underwent a living donor LT. The donor was the patient's mother, and his liver was then used as a domino graft. The postoperative course was uneventful in all three subjects. DNA analysis performed after the transplantation (sequencing of the coding regions of BCKDHA, BCKDHB, and DBT genes) showed that the MSUD patient was heterozygous for a pathogenic mutation in the BCKDHB gene. This mutation was not found in his mother, who is an obligatory carrier for MSUD according to the family history and, as expected, presented both normal clinical phenotype and levels of branched-chain amino acids. In conclusion, our data suggest that the use of a related donor in LT for MSUD was effective, and the liver of the MSUD patient was successfully used in domino transplantation. Routine donor genotyping may not be feasible, because the test is not widely available, and, most importantly, the disease is associated with both the presence of allelic and locus heterogeneity. Further studies with this population of patients are required to expand the use of related donors in MSUD.


Subject(s)
Child, Preschool , Humans , Male , Liver Transplantation , Living Donors , Maple Syrup Urine Disease/surgery , Mutation/genetics , Amino Acids, Branched-Chain/genetics , Genotype , Phenotype , Sequence Analysis, DNA , Treatment Outcome
4.
Exp Clin Endocrinol Diabetes ; 122(6): 341-9, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24798861

ABSTRACT

Current guidelines for the treatment of type 2 diabetes focus on pharmacological treatment of glucose and cardio-vascular risk factors. The aim of this prospective randomized controlled intervention study was to examine the effects of a psychosocial intervention on clinical endpoints and risk factors in patients with type 2 diabetes and early diabetic kidney disease.110 patients were randomized to receive an 8-week mindfulness-based stress reduction (MBSR) training (n = 53) compared to standard care (n = 57). The study was carried out open-labelled and randomization was performed computer-generated in a 1:1 ratio. Primary outcome of the study was the change in urinary albumin excretion (albumin-creatinine-ratio, ACR); secondary outcomes were metabolic parameters, intima media thickness (IMT), psychosocial parameters and cardiovascular events.89 patients (42 in control group and 47 in intervention group) were analysed after 3 years of follow-up. After 1 year, the intervention group showed a reduction of ACR from 44 [16/80] to 39 [20/71] mg/g, while controls increased from 47 [16/120] to 59 [19/128] mg/g (p = 0.05). Parallel to the reduction of stress levels after 1 year, the intervention-group additionally showed reduced catecholamine levels (p < 0.05), improved 24 h-mean arterial (p < 0.05) and maximum systolic blood pressure (p < 0.01), as well as a reduction in IMT (p < 0.01). However, these effects were lost after 2 and 3 years of follow-up.This is the first study to show that a psychosocial intervention improves cardiovascular risk factors in high risk type 2 diabetes patients. Trial-Registration: NCT00263419 http://clinicaltrials.gov/ct2/show/NCT00263419 TRIAL REGISTRATION: clinicaltrials.gov-Identifier: NCT00263419.


Subject(s)
Cardiovascular Diseases , Diabetes Mellitus, Type 2 , Diabetic Nephropathies , Stress, Psychological , Cardiovascular Diseases/prevention & control , Cardiovascular Diseases/psychology , Diabetes Mellitus, Type 2/psychology , Diabetes Mellitus, Type 2/therapy , Diabetic Nephropathies/psychology , Diabetic Nephropathies/therapy , Female , Humans , Male , Middle Aged , Prospective Studies , Risk Factors , Stress, Psychological/psychology , Stress, Psychological/therapy
5.
Braz J Med Biol Res ; 47(6): 522-6, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24770567

ABSTRACT

Maple syrup urine disease (MSUD) is an autosomal recessive disease associated with high levels of branched-chain amino acids. Children with MSUD can present severe neurological damage, but liver transplantation (LT) allows the patient to resume a normal diet and avoid further neurological damage. The use of living related donors has been controversial because parents are obligatory heterozygotes. We report a case of a 2-year-old child with MSUD who underwent a living donor LT. The donor was the patient's mother, and his liver was then used as a domino graft. The postoperative course was uneventful in all three subjects. DNA analysis performed after the transplantation (sequencing of the coding regions of BCKDHA, BCKDHB, and DBT genes) showed that the MSUD patient was heterozygous for a pathogenic mutation in the BCKDHB gene. This mutation was not found in his mother, who is an obligatory carrier for MSUD according to the family history and, as expected, presented both normal clinical phenotype and levels of branched-chain amino acids. In conclusion, our data suggest that the use of a related donor in LT for MSUD was effective, and the liver of the MSUD patient was successfully used in domino transplantation. Routine donor genotyping may not be feasible, because the test is not widely available, and, most importantly, the disease is associated with both the presence of allelic and locus heterogeneity. Further studies with this population of patients are required to expand the use of related donors in MSUD.


Subject(s)
Liver Transplantation , Living Donors , Maple Syrup Urine Disease/surgery , Mutation/genetics , Amino Acids, Branched-Chain/genetics , Child, Preschool , Genotype , Humans , Male , Phenotype , Sequence Analysis, DNA , Treatment Outcome
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