Mitochondrial dysfunction and lipid alterations in primary sclerosing cholangitis.

Objectives: Indications of mitochondrial dysfunction are commonly seen in liver diseases, but data are scarce in primary sclerosing cholangitis (PSC). Analyzing circulating and liver-resident molecules indirectly reflecting mitochondrial dysfunction, we aimed to comprehensively characterize this deficit in PSC, and whether this was PSC specific or associated with cholestasis.

Materials And Methods: We retrospectively included plasma from 191 non-transplant patients with large-duct PSC and 100 healthy controls and explanted liver tissue extracts from 24 PSC patients and 18 non-cholestatic liver disease controls.

Extended-release hydrocortisone formulations - Is there a clinically meaningful benefit?

Despite best practice replacement therapy with corticosteroids, patients with adrenal insufficiency report diminished quality of life and face increased mortality and morbidity. Conventional formulations of hydrocortisone have short half-lives (about 90 minutes) requiring multiple dosing during the day. Extended-release hydrocortisone (ER-HC) formulations have since 2011 been available enabling once, sometimes twice daily dosing.

Corticosteroid rhythms in hypoparathyroid patients.

Objective: Previous studies indicate a possible bidirectional stimulatory relationship between parathyroid hormone (PTH) and adrenocortical hormones, but the pattern of adrenocortical secretion in hypoparathyroidism is unknown. We aimed to characterize the adrenocortical secretion in patients with postsurgical hypoparathyroidism, and whether continuous subcutaneous PTH (1-34) infusion alters secretion patterns.

Design: Crossover interventional study.

Utility of salivary cortisol and cortisone in the diagnostics of adrenal insufficiency.

Background: Salivary cortisol (sa-cortisol) and salivary cortisone (sa-cortisone) correlate well with serum cortisol (s-cortisol) but validated reference ranges for healthy individuals are lacking.

Objective: To establish cutoff levels for sa-cortisol and cortisone following cosyntropin testing, and assess their diagnostic utility in adrenal insufficiency (AI).

Methods: Steroids in saliva were assayed using liquid-chromatography tandem-mass-spectrometry (LCMS/MS) before and after administration of 250µg cosyntropin test in 128 healthy subjects (16 on oral estrogens) and 59 patients with suspected AI, of whom 26 were diagnosed with AI with conventional serum cortisol criteria.

Single cell characterization of blood and expanded regulatory T cells in autoimmune polyendocrine syndrome type 1.

Immune tolerance fails in autoimmune polyendocrine syndrome type 1 (APS-1) because of mutations. We have used single cell transcriptomics to characterize regulatory T cells (Tregs) sorted directly from blood and from expanded Tregs in APS-1 patients compared to healthy controls. We revealed only CD52 and LTB (down) and TXNIP (up) as consistently differentially expressed genes in the datasets.

Rare copy number variation in autoimmune Addison's disease.

Autoimmune Addison's disease (AAD) is a rare but life-threatening endocrine disorder caused by an autoimmune destruction of the adrenal cortex. A previous genome-wide association study (GWAS) has shown that common variants near immune-related genes, which mostly encode proteins participating in the immune response, affect the risk of developing this condition. However, little is known about the contribution of copy number variations (CNVs) to AAD susceptibility.

Autoimmune amelogenesis imperfecta in patients with APS-1 and coeliac disease.

Ameloblasts are specialized epithelial cells in the jaw that have an indispensable role in tooth enamel formation-amelogenesis. Amelogenesis depends on multiple ameloblast-derived proteins that function as a scaffold for hydroxyapatite crystals. The loss of function of ameloblast-derived proteins results in a group of rare congenital disorders called amelogenesis imperfecta.

Improving diagnostic precision in primary ovarian insufficiency using comprehensive genetic and autoantibody testing.

Study Question: Is it possible to find the cause of primary ovarian insufficiency (POI) in more women by extensive screening?

Summary Answer: Adding next generation sequencing techniques including a POI-associated gene panel, extended whole exome sequencing data, as well as specific autoantibody assays to the recommended diagnostic investigations increased the determination of a potential etiological diagnosis of POI from 11% to 41%.

What Is Known Already: POI affects ∼1% of women. Clinical presentations and pathogenic mechanisms are heterogeneous and include genetic, autoimmune, and environmental factors, but the underlying etiology remains unknown in the majority of cases.

A partial form of AIRE deficiency underlies a mild form of autoimmune polyendocrine syndrome type 1.

Autoimmune polyendocrine syndrome type 1 (APS-1) is caused by mutations in the autoimmune regulator (AIRE) gene. Most patients present with severe chronic mucocutaneous candidiasis and organ-specific autoimmunity from early childhood, but the clinical picture is highly variable. AIRE is crucial for negative selection of T cells, and scrutiny of different patient mutations has previously highlighted many of its molecular mechanisms.

Altered biomarkers for cardiovascular disease and inflammation in autoimmune Addison's disease - a cross-sectional study.

Objective: Increased prevalence of cardiovascular disease has been reported in autoimmune Addison's disease (AAD), but pathomechanisms are poorly understood.

Design: Cross-sectional study.

Methods: We compared serum levels of 177 cardiovascular and inflammatory biomarkers in 43 patients with AAD at >18-h glucocorticoid withdrawal and 43 matched controls, overall and stratified for sex.

Outcomes of Patients With Graves Disease 25 Years After Initiating Antithyroid Drug Therapy.

Context: Graves disease (GD) is a leading cause of hyperthyroidism. Detailed investigations and predictors of long-term outcomes are missing.

Objective: This work aimed to investigate the outcomes in GD 25 years after initiating antithyroid drug treatment, including disease course, clinical and biochemical predictors of relapse, and quality of life.

Prevalence, Risk Factors, and Clinical and Biochemical Characteristics of Alemtuzumab-Induced Graves Disease.

Objective: Atypical Graves disease (GD) is a common complication in multiple sclerosis (MS) patients treated with alemtuzumab. We present epidemiological, clinical, and biochemical characteristics of alemtuzumab-induced GD.

Methods: Retrospective follow-up study of MS patients treated with alemtuzumab from 2014 to 2020, including clinical course of GD, pregnancy outcome, and thyroid eye disease (TED).

Regulatory T cells in autoimmune primary adrenal insufficiency.

Primary adrenal insufficiency (PAI) is most often caused by an autoimmune destruction of the adrenal cortex resulting in failure to produce cortisol and aldosterone. The aetiology is thought to be a combination of genetic and environmental risk factors, leading to breakdown of immunological tolerance. Regulatory T cells (Tregs) are deficient in many autoimmune disorders, but it is not known whether they contribute to development of PAI.

Substantial changes in inflammatory and cardiovascular biomarkers in patients with autonomous cortisol secretion.

Objective: To map inflammatory biomarkers in patients with autonomous cortisol secretion (ACS) and overt Cushing syndrome (CS).

Method: Observational study including serum from prospectively included patients with ACS (n = 63), adrenal CS (n = 2), pituitary CS (n = 8), and healthy subjects (n = 120). Serum samples were analysed for 92 inflammatory biomarkers using proximity extension assay (OLINK).

Vaccination prevents severe COVID-19 outcome in patients with neutralizing type 1 interferon autoantibodies.

A hallmark of patients with autoimmune polyendocrine syndrome type 1 (APS-1) is serological neutralizing autoantibodies against type 1 interferons (IFN-I). The presence of these antibodies has been associated with severe course of COVID-19. The aims of this study were to investigate SARS-CoV-2 vaccine tolerability and immune responses in a large cohort of patients with APS-1 (N = 33) and how these vaccinated patients coped with subsequent infections.

Plasma-Metanephrines in Patients with Autoimmune Addison's Disease with and without Residual Adrenocortical Function.

Purpose: Residual adrenocortical function, RAF, has recently been demonstrated in one-third of patients with autoimmune Addison's disease (AAD). Here, we set out to explore any influence of RAF on the levels of plasma metanephrines and any changes following stimulation with cosyntropin.

Methods: We included 50 patients with verified RAF and 20 patients without RAF who served as controls upon cosyntropin stimulation testing.

Dominant-negative heterozygous mutations in AIRE confer diverse autoimmune phenotypes.

Autoimmune polyendocrine syndrome type 1 (APS-1) is an autosomal recessive disease characterized by severe and childhood onset organ-specific autoimmunity caused by mutations in the autoimmune regulator () gene. More recently, dominant-negative mutations within the PHD1, PHD2, and SAND domains have been associated with an incompletely penetrant milder phenotype with later onset familial clustering, often masquerading as organ-specific autoimmunity. Patients with immunodeficiencies or autoimmunity where genetic analyses revealed heterozygous mutations were included in the study and the dominant-negative effects of the mutations were functionally assessed .

Pulsatile Subcutaneous Hydrocortisone Replacement in Primary Adrenal Insufficiency.

Pulsatile endogenous cortisol secretion is critical for physiological glucocorticoid gene signaling. Conventional glucocorticoid replacement therapy does not mimic endogenous cortisol pulsing in primary adrenal insufficiency. In an open-labeled, two-week, nonrandomized cross-over study of five patients with adrenal insufficiency (Addison's disease in two, bilateral adrenalectomy in one, and congenital adrenal hyperplasia in two patients) we compared pulsatile and continuous cortisol pump treatment and conventional oral glucocorticoid therapy with respect to 24-h serum corticosteroid levels and plasma adrenocorticotropic hormone (ACTH).

A polygenic risk score to help discriminate primary adrenal insufficiency of different etiologies.

Background: Autoimmune Addison's disease (AAD) is the most common cause of primary adrenal insufficiency (PAI). Despite its exceptionally high heritability, tools to estimate disease susceptibility in individual patients are lacking. We hypothesized that polygenic risk score (PRS) for AAD could help investigate PAI pathogenesis in pediatric patients.