Publications by authors named "Rulai Han"

Article Synopsis
  • The study investigated the gut microbiota and metabolic traits of individuals under 30 with unclassified diabetes using a comprehensive multi-omics approach.
  • The research involved 18 patients with unclassified diabetes, 18 with type 1 diabetes, 13 with type 2 diabetes, and 18 healthy controls, employing techniques like metagenomics and liquid chromatography-mass spectrometry for analysis.
  • Results showed a distinct gut microbiota in unclassified diabetes patients and identified specific biomarkers that could differentiate them from healthy controls, pointing to similarities with type 2 diabetes, while also highlighting unique metabolic characteristics that may influence disease development.
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Background: Germline DICER1 mutations cause familial multinodular goiter (MNG). However, the prevalence of somatic DICER1 mutations in non-MNG benign thyroid nodules and their characteristics remain unknown.

Methods: Adult-onset thyroid nodules with a pathological diagnosis were genotyped via targeted sequencing.

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Article Synopsis
  • Wolframin is a protein crucial for endoplasmic reticulum (ER) function, and variants in the related gene are linked to Wolfram syndrome and other disorders like diabetes and psychiatric issues, leading to potential misdiagnoses.
  • In a study of 165 patients with early-onset unclassified diabetes, whole-exome sequencing revealed compound heterozygous variants in two individuals associated with Wolfram Syndrome-Like disorders, which increased ER stress and reduced cell viability.
  • These findings emphasize the need for early genetic testing in young-onset diabetes to enhance diagnosis accuracy and inform treatment strategies by recognizing the role of genetic variants in clinical outcomes.*
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Background: Adrenocortical carcinoma (ACC) is an aggressive endocrine malignancy with limited therapeutic options. Treating advanced ACC with mitotane, the cornerstone therapy, remains challenging, thus underscoring the significance to predict mitotane response prior to treatment and seek other effective therapeutic strategies.

Objective: We aimed to determine the efficacy of mitotane via an assay using patient-derived ACC cells (PDCs), identify molecular biomarkers associated with mitotane response and preliminarily explore potential agents for ACC.

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Importance: With the widespread use of anti-SARS-CoV-2 drugs, accumulating data have revealed potential viral load rebound after treatment.

Objective: To compare COVID-19 rebound after a standard 5-day course of antiviral treatment with VV116 vs nirmatrelvir-ritonavir.

Design, Setting, And Participants: This is a single-center, investigator-blinded, randomized clinical trial conducted in Shanghai, China.

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Context: Fusion oncogenes, especially those involving RET or NTRK, are known drivers of papillary thyroid cancer (PTC). They are prevalent in pediatric patients and correlate with aggressive tumor behavior.

Objective: We explored the age dependence of fusion oncogenes and aggressive tumor behavior in young adult PTC patients.

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Diagnosis of nonclassic adrenal hyperplasia (NCAH) due to 21-hydroxylase deficiency (21-OHD) may be challenging due to its occult manifestations. To characterize clinical and molecular features of NCAH patients due to 21-hydroxylase deficiency, we retrospectively included 78 NCAH patients. Their phenotype and genotype were presented and compared.

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Context: Measurement of plasma steroids is necessary for diagnosis of congenital adrenal hyperplasia (CAH). We sought to establish an efficient strategy for detection and subtyping of CAH with a machine-learning algorithm.

Methods: Clinical phenotype and genetic testing were used to provide CAH diagnosis and subtype.

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Purpose: Widespread use of sensitive ultrasound examination led to an increasing detection of medullary thyroid microcarcinoma (micro-MTC). This prospective study evaluated the diagnostic accuracy of Fine-needle Aspiration Biopsy Cytology (FNAB-C) and calcitonin assay in Fine-needle Aspiration Biopsy wash-out fluid (FNAB-CT) in thyroid nodules less than 1 cm with elevated serum calcitonin(sCT).

Methods: 87 thyroid nodules from 60 patients with elevated sCT (>10 pg/ml) were included and 51 were thyroid nodules less than 1cm.

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Context: Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive genetic diseases caused by genetic deficiency in nine genes encoding steroidogenesis enzymes and cofactors.

Objective: To establish a targeted next-generation sequencing (NGS) assay for all nine CAH candidate genes.

Methods: We developed a customized targeted NGS assay of CAH candidate genes (CYP21A2, CYP17A1, CYP11B1, StAR, CYP11A1, POR, HSD3B2, H6PD, CYP11B2) and apply this assay plus MLPA of CYP21A2 in a total of 469 patients with CAH like signs and symptoms.

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Introduction: East Asians are more susceptible to early-onset diabetes than Europeans and exhibit reduced insulin secretion at earlier stages. PAX4 plays a critical role in the development of β-cells. The dysfunction-missense variants PAX4 R192H and PAX4 R192S are common in East Asians but rare in Europeans.

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Diagnosis of thyrotropin (TSH)-secreting pituitary adenomas (TSHoma) before surgery remains a challenge, especially for microadenomas. We aimed to establish a short-term somatostatin analogue (SSA) test to differentiate TSHomas from other causes of syndromes of inappropriate secretion of TSH (IST), mainly resistance to thyroid hormone β (RTHβ). We first evaluated the sensitivity and specificity of SSA test in a training cohort (TSHoma,  = 32; RTHβ,  = 20).

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Purpose: Mild thyroid peroxidase (TPO) deficiency is rare and can be extremely occult. This study aimed to replenish the phenotypic and genetic spectrum of mild TPO deficiency.

Methods: Four unrelated patients with progressive goiter were described in this study.

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Objective Up to 40% of multiple endocrine neoplasia type 1 (MEN1) patients may have adrenal cortical tumors. However, adrenocortical carcinoma (ACC) is rare. The clinical manifestations, prevalence, inheritance and prognosis of ACC associated with MEN1 remain unclear.

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Resistance to thyroid hormone (RTH) is a rare genetic disease caused by reduced tissue sensitivity to thyroid hormone. The hallmark of RTH is elevated serum levels of thyroid hormone with unsuppressed thyrotropin (TSH). However, the most common form of RTH results from minor defects in the ligand-binding domain or hinge domain of the TRβ gene, resulting in impaired T3-induced transcriptional activity, often showing mild presentation.

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Background: For patients with active moderate-to-severe Graves' ophthalmopathy (GO), a course of 4.5 g iv glucocorticoids (GCs) is the recommended therapy. The weekly protocol is preferred because of the potential safety concerns with the daily protocol.

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