Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 10 de 10
Filtrar
1.
Biomed Rep ; 20(6): 101, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38765854

RESUMO

Phototherapy is the most commonly used treatment for neonatal hyperbilirubinemia (NH). Gut microbiota is involved in bilirubin metabolism; however, it is uncertain whether this is affected by phototherapy. The present study included 43 newborns with hyperbilirubinemia and collected fecal samples for high-throughput sequencing before and after phototherapy. Selection α diversity analysis was used to determine the differences in diversity and abundance between the two groups, whereas similarity was determined using ß diversity analysis. Linear discriminant analysis effect size analysis was used to screen for markedly different bacteria. The structure of the gut microbiota in newborns with hyperbilirubinemia changed after phototherapy, with a significant decrease in abundance and diversity. The changes in the key bacterial species were characterized by an increase in the abundance of Streptococcus salivarius and a decrease in the abundance of Escherichia, Klebsiella pneumoniae, Rothia mucilaginosa and Streptococcus oralis. These changes mainly manifested as an increase in beneficial bacteria and a decrease in opportunistic bacteria, which may not be related to the side effects of phototherapy. These results can provide theoretical assistance for microbiological research on the later stages of NH.

2.
Gene ; 908: 148292, 2024 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-38369247

RESUMO

Hepatoblastoma (HB) is the most common malignant tumor in children under 5 years old, but its pathogenesis remains unclear. Nur77 has been reported to be an important regulator for cancer progression in various cancer types. This study found that Nur77 was downregulated in HB tumors, compared with paracancer tissue. Knockout or overexpression of Nur77 in HB tumor cell line HepG2 and HuH6 could significantly enhance or inhibit the proliferation, migration and invasion of tumor cells both in vitro and in vivo. Further studies illustrated that Nur77 regulated the proliferation of tumor cells by affecting the expression of ß-catenin. Nur77 agonist Csn-B effectively enhanced the therapeutic effect of cisplatin on HB tumors both in vitro and in vivo. This study confirms that Nur77 may act as an oncogene in HB tumors and mediate the progression of HB by inhibiting the expression of ß-catenin, which provides a new targeted therapy for the clinical treatment of HB patients; meanwhile, the combination of Nur77 agonist and cisplatin treatment may improve the chemotherapeutic efficacy of HB patients, which provides a new idea for the improvement of the clinical prognosis of HB patients.


Assuntos
Hepatoblastoma , Neoplasias Hepáticas , Criança , Humanos , Pré-Escolar , Hepatoblastoma/tratamento farmacológico , Hepatoblastoma/genética , Cisplatino/farmacologia , Cisplatino/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , beta Catenina/genética , beta Catenina/metabolismo , Linhagem Celular Tumoral , Proliferação de Células
3.
Biomed Rep ; 20(3): 44, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38357229

RESUMO

Thrombopoietin receptor agonists (TPO-RAs) have a role in second-line immune thrombocytopenic purpura (ITP) treatment, binding to and activating thrombopoietin receptors on megakaryocyte membranes in the bone marrow. This promotes megakaryocyte maturation and increases platelet production. Despite a 2-6% incidence of thrombotic events during TPO-RA treatment, it remains uncertain whether TPO-RAs elevate thrombosis rates. A comprehensive search of electronic databases was conducted using the relevant search criteria. To assess the risk of bias, the included studies were assessed using the revised Cochrane Risk of Bias Assessment Tool 2.0, and a meta-analysis was performed using RevMan 5.4.1. A total of 1,698 patients with ITP were included from randomized controlled trials (RCTs). There were 26 thromboembolic events in the TPO-RAs group and 4 in the control group. However, there was no significant difference in the incidence of thrombotic events between the two groups [odds ratio (OR)=1.76, 95% confidence interval (CI): 0.78-4.00, P=0.18], even if the duration of treatment was >12 weeks (OR=2.46, 95% CI: 0.81-7.43, P=0.11). Subgroup analysis showed that none of the four drugs significantly increased the incidence of thrombotic events (romiplostim: OR=0.92, 95% CI: 0.14-6.13, P=0.93; eltrombopag: OR=2.32, 95% CI: 0.64-8.47, P=0.20; avatrombopag: OR=4.15, 95% CI: 0.20-85.23, P=0.36; and hetrombopag: OR=0.76, 95% CI: 0.03-18.76, P=0.87). There was also no significant difference in the results of the double-blinded placebo-controlled RCTs (OR=1.21, 95% CI: 0.41-3.58, P=0.73). Compared to patients with ITP who did not receive TPO-RA treatment, those receiving TPO-RA treatment did not exhibit a significantly increased risk of thrombotic events.

4.
World J Clin Cases ; 11(32): 7865-7871, 2023 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-38073688

RESUMO

BACKGROUND: Abernethy malformation, also known as congenital extrahepatic portosystemic shunt, is an uncommon malformation resulting from aberrant development of the portal venous system. Cystic fibrosis (CF) is an autosomal recessive genetic disease caused by mutations in the CFTR gene. It mainly affects the exocrine glands of the respiratory, digestive and reproductive systems. It is considered extremely rare in the Asian population. We present a clinical case involving a pediatric patient of Asian descent who was diagnosed with Abernethy malformation and CF. CASE SUMMARY: A 12-year-old girl presented with a medical history of recurring respiratory infections and hemoptysis, and chest computed tomography (CT) showed bronchiectasis. Whole exome sequencing was performed for the patient, yielding findings that revealed a compound heterozygous variant of the CFTR gene: c.233_c.234insT/p.Trp79fsTer3 (maternal origin); c.2909G>A/p.Gly970Asp (paternal origin). CF was diagnosed. The physician's attention was drawn to the presence of splenomegaly during disease progression. Abdominal enhanced CT revealed splenomegaly, compression of the left kidney, and multiple tortuous dilated vascular shadows were seen at the splenic hilum, which flowed back into the left renal vein and portal vein, suggesting Abernethy malformation type II. Intraoperatively, the abnormal blood flow was seen to merge into the inferior vena cava through the left renal vein without hepatic processing, and the pathology of liver biopsy showed hypoplastic, dilated or absent portal vein branches, both of which supported the diagnosis of Abernethy malformation type II. This represents the initial documented instance of Abernethy malformation accompanied by a CFTR gene mutation in the existing body of literature. CONCLUSION: Coexisting Abernethy malformation and CF are rare. Detailed medical history information, abdominal enhanced CT, venography and genetic testing contribute to diagnosis as well as differential diagnosis.

5.
J Int Med Res ; 51(10): 3000605231204491, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37848341

RESUMO

Self-improving collodion ichthyosis (SICI) is a relatively rare subtype of autosomal recessive congenital ichthyosis (ARCI) that is often characterized by a collodion baby (CB) phenotype at birth. A newborn girl, just 1 hour old, presented with taut, shiny, thick yellow crusts, like parchment, and scales on her trunk and upper limbs. The tightening effect had caused both upper eyelids to appear everted, and her lips and auricles were deformed. Based on whole-exome sequencing and examination of the clinical phenotype, the patient was diagnosed with ARCI. After admission, the exposed mucosa was covered with a sterile Vaseline gauze dressing, and she was placed in an incubator set to a temperature of 32°C with a humidity level of 75%. One week later, the parchment-like scales had begun to flake off, and at the age of 3 weeks, all bodily skin appeared normal. SICI was diagnosed. After discharge, the patient was followed up to 3 months of age, at which time her growth and development were comparable to those of her peers. Clinicians should consider SICI as a possible diagnosis when analyzing the prognosis of patients with CB. Reducing water loss and maintaining the electrolyte balance are particularly important for SICI treatment.


Assuntos
Ictiose Lamelar , Ictiose , Humanos , Lactente , Recém-Nascido , Feminino , Colódio , Ictiose Lamelar/diagnóstico , Ictiose Lamelar/genética , Ictiose Lamelar/terapia , Ictiose/diagnóstico , Ictiose/genética , Pele , Fenótipo
6.
Exp Ther Med ; 26(2): 393, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37456173

RESUMO

The aim of the present study was to analyze the safety of non-peptide thrombopoietin receptor agonists (TPO-RAs) for immune thrombocytopenia (ITP) treatment. All studies reporting adverse events (AEs) in relation to ITP treatment with eltrombopag, avatrombopag, and hetrombopag were retrieved from PubMed, Web of Science, and Embase databases. RevMan 5.4.1 was used for meta-analysis, heterogeneity and bias analyses. A total of 1,078 patients from seven eligible studies were enrolled. In the enrolled clinical trials, the double-blind period was between 6 weeks and 6 months. The results revealed that the chances of any AEs [relative risk (RR)=1.16; 95% confidence interval (CI), 0.90-1.51; I2=78%; P=0.26], grade 3/4 AEs (RR=1.07; 95% CI, 0.63-1.80; I2=0%; P=0.81), elevated transaminase levels (RR=1.09; 95% CI, 0.68-1.74; I2=0%; P=0.72), thrombosis (RR=1.92; 95% CI, 0.55-6.66; I2=0%; P=0.31) and cataracts (RR=0.83; 95% CI, 0.38-1.83; I2=0%; P=0.65) were not significantly higher in patients with ITP that received non-peptide TPO-RAs compared with patients with ITP treated with a placebo. The present study indicated that non-peptide TPO-RAs were relatively safe for patients with ITP, at least within 6 months of administration.

7.
J Orthop Surg Res ; 18(1): 322, 2023 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-37098573

RESUMO

OBJECTIVE: The objective of this meta-analysis was to illustrate the clinical outcomes and safety of two different management options for Song stage 2-4 lateral condyle humeral fractures in children. METHOD: In January 2023, a systematic computer-based search was conducted. Data were retrieved for patients with two different management options for lateral condyle humeral fractures in children. The primary endpoints were clinical outcomes based on infection, avascular necrosis, and nonunion. After testing for publication bias and heterogeneity between studies, the data was aggregated for stochastic effect models when necessary. RESULTS: Eight clinical studies with 742 patients were eventually included in the meta-analysis. There was no significant difference between the closed reduction and percutaneous pinning, and open reduction and internal fixation in terms of the clinical outcomes based on infection, avascular necrosis, and nonunion (P > 0.05). CONCLUSIONS: Closed reduction and percutaneous pinning, as well as open reduction and internal fixation of lateral condyle humeral fractures in children, resulted in similar structural stability and functional outcomes. More high-quality randomized controlled trials are needed to determine this conclusion.


Assuntos
Fixação Interna de Fraturas , Fraturas do Úmero , Humanos , Criança , Resultado do Tratamento , Fixação Interna de Fraturas/métodos , Fraturas do Úmero/diagnóstico por imagem , Fraturas do Úmero/cirurgia , Osso e Ossos , Necrose
8.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi ; 39(1): 39-42, 2022 Jan 10.
Artigo em Chinês | MEDLINE | ID: mdl-34964964

RESUMO

OBJECTIVE: To explore the genetic basis for a neonate affected with Glutaric aciduria type I (GA-I). METHODS: Targeted capture and high-throughput sequencing was carried out for the proband and her parents. Candidate variants were verified by Sanger sequencing. RESULTS: The proband was found to harbor compound heterozygous variants of the GCDH gene, namely c.523G>A and c.1190T>C, which was derived from her father and mother, respectively. CONCLUSION: The compound heterozygous variants of the GCDH gene probably underlay the GA-I in the patient.


Assuntos
Erros Inatos do Metabolismo dos Aminoácidos , Encefalopatias Metabólicas , Erros Inatos do Metabolismo dos Aminoácidos/genética , Encefalopatias Metabólicas/genética , Criança , Feminino , Glutaril-CoA Desidrogenase/genética , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Recém-Nascido , Mutação
9.
BMC Pediatr ; 20(1): 309, 2020 06 26.
Artigo em Inglês | MEDLINE | ID: mdl-32590971

RESUMO

BACKGROUND: Persistent and chronic diarrhea is difficult to treat, and infection is still the main cause. In this study, we investigate the application value of xTAG gastrointestinal pathogen panel (xTAG GPP) multiplex PCR in the early diagnosis of persistent and chronic diarrhea in children and to understand the epidemiology of intestinal diarrhea pathogens. METHODS: One hundred ninety-nine specimens were collected from Nanjing Children's Hospital Affiliated to Nanjing Medical University (Nanjing, China). We compared the xTAG GPP multiplex PCR assay with traditional methods (culture, rapid enzyme immunoassay chromatography, and microscopic examination) and performed a statistical analysis. RESULTS: The positive rate of the xTAG GPP multiplex PCR assay of diarrhea specimens from 199 patients was 72.86% (145/199). The virus detection rate was 48.7%, and rotavirus A was the most common organism detected (34.67%), concentrated in winter, and was common in children. The second most common organism detected was norovirus GI/GII (20.6%). The positive rate of this bacteria was 40.2%, and Campylobacter (22.11%, 44/199) was most frequently detected. C. difficile toxins A/B and Salmonella was detected in 44 and 17 samples, respectively. Infections with Shigella occurred 4 times, and E. coli O157 was only detected once. Three samples were parasitic (1.51%), two samples were positive for Entamoeba histolytica, and one was positive for Cryptosporidium. Adenovirus 40/41, STEC, ETEC, Giardia, Yersinia enterocolitica and Vibrio cholerae were not detected. In total, 86 (43.2%) infected specimens with a single pathogen were detected. There were 59 coinfections (29.65% of the samples) of viruses and/or bacteria and/or parasites. Coinfections involved 49 double infections (24.62%), 9 triple infections (4.52%) and 1 quadruple infections (0.5%). Norovirus GI/GII was found to have the highest involvement, with 32 coinfections (16.08%). CONCLUSION: The xTAG GPP multiplex PCR assay is simple, sensitive, and specific and can be used as a quick way to diagnose persistent and chronic diarrhea in children.


Assuntos
Clostridioides difficile , Criptosporidiose , Cryptosporidium , Animais , Criança , China/epidemiologia , Diarreia/diagnóstico , Diarreia/epidemiologia , Escherichia coli , Fezes , Humanos , Reação em Cadeia da Polimerase Multiplex , Sensibilidade e Especificidade
10.
Liver Int ; 38(8): 1504-1513, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29637721

RESUMO

BACKGROUND & AIMS: Wilson disease is an inborn error of metabolism caused by abnormalities of the copper-transporting protein-encoding gene ATP7B. Recently, the phenomenon of exon skipping, in which exonic mutations result in abnormal splicing, has been associated with various diseases. The present study investigated the splicing defects of the ATP7B exonic variants identified in a cohort of 44 patients with Wilson disease. METHOD: All patients were analysed for ATP7B gene by direct sequencing or multiplex ligation-dependent probe amplification analysis. To identify the potential pathogenicity of the candidate mutations that may induce exon skipping, both in vivo RT-PCR analysis using RNA from peripheral leukocytes and in vitro functional splicing by minigene construction were conducted. RESULTS: The patterns of inheritance of the mutations in ATP7B identified in 44 patients exhibited homozygotes (7 patients), compound heterozygotes (32 patients) and heterozygotes (5 patients). In all patients, we detected 25 different ATP7B mutations, including 17 missenses, 1 frameshift, 3 nonsenses, 2 exonic deletions and 2 splicing alteration. In these mutations, 4 mutations have not been previously described in the literature or entered in human genome mutation database. Furthermore, we identified synonymous mutation c.4014T>A and missense mutation R919G caused exon skipping in the ATP7B mRNA transcript. CONCLUSION: Our results suggest that aberrant exon skipping associated to putative splicing enhancer disruption and silencer creation is one previously unrecognized mechanism in Wilson disease. What is more, the multiplex ligation-dependent probe amplification assay for the detection of exon deletions may be valuable in individuals with clinical Wilson disease diagnosis where one or no mutation has been identified by sequencing.


Assuntos
ATPases Transportadoras de Cobre/genética , Degeneração Hepatolenticular/genética , Mutação de Sentido Incorreto , Mutação Silenciosa , Adolescente , Estudos de Casos e Controles , Criança , Pré-Escolar , Elementos Facilitadores Genéticos , Éxons , Feminino , Humanos , Masculino , Splicing de RNA , RNA Mensageiro/genética
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...