Publications by authors named "Rohlfs M"

Article Synopsis
  • * A 3-year study, TRANSLATE NAMSE, analyzed data from 1,577 patients, revealing that 32% received molecular diagnoses involving 370 distinct causes, primarily uncommon.
  • * The research showed that combining next-generation sequencing with advanced phenotyping methods improved diagnostic efficiency and helped identify new genotype-phenotype associations, particularly in neurodevelopmental disorders.
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  • - Hypogammaglobulinemia without B-cells is a type of inborn error of immunity marked by low serum immunoglobulins and a lack of B-cells, with most cases linked to mutations in the BTK gene.
  • - In a study of 27 patients from 13 families, researchers discovered several novel mutations in the BTK gene along with other genetic variants in different genes, which contribute to the condition's complexity.
  • - The findings expand the understanding of this immunological disorder, especially within the Iranian community, highlighting that affected siblings may exhibit better disease management compared to other family members.
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Mass bleaching events and local anthropogenic influences have changed the benthic communities of many coral reefs with pronounced spatial differences that are linked to resilience patterns. The Gulf of Thailand is an under-investigated region with only few existing datasets containing long-term developments of coral reef communities using the same method at fixed sites. We thus analyzed benthic community data from seven reefs surrounding the island of Koh Phangan collected between 2014 and 2022.

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Purpose: RNF213, encoding a giant E3 ubiquitin ligase, has been recognized for its role as a key susceptibility gene for moyamoya disease. Case reports have also implicated specific variants in RNF213 with an early-onset form of moyamoya disease with full penetrance. We aimed to expand the phenotypic spectrum of monogenic RNF213-related disease and to evaluate genotype-phenotype correlations.

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C-terminal variants in CDC42 encoding cell division control protein 42 homolog underlie neonatal-onset cytopenia, autoinflammation, rash, and hemophagocytic lymphohistiocytosis (NOCARH). Pyrin inflammasome hyperactivation has been shown to contribute to disease pathophysiology. However, mortality of NOCARH patients remains high despite inflammasome-focused treatments.

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Early diverging fungi, such as , are an emerging source of bioactive peptides. By screening 22 fungal isolates together with precursor-directed biosynthesis, a family of threonine-linked cyclotetradepsipeptides, the cycloacetamides A-F (-), was identified. The structure elucidation was conducted using NMR and HR-ESI-MS/MS analyses, and the absolute configuration was determined by Marfey's analysis and total synthesis.

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Parent-to-offspring transmission of beneficial microorganisms is intimately interwoven with the evolution of social behaviors. Ancestral stages of complex sociality-microbe vectoring interrelationships may be characterized by high costs of intensive parental care and hence only a weak link between the transmission of microbial symbionts and offspring production. We investigate the relationship between yeast symbiont transmission and egg-laying, as well as some general factors thought to drive the "farming" of microscopic fungi by the fruit fly , an insect with no obvious parental care but which is highly dependent on dietary microbes during offspring development.

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Background: Primary ciliary dyskinesia (PCD), also known as the immotile-cilia syndrome, is a clinically and genetically heterogeneous syndrome. Improper function of the cilia causes impaired mucociliary clearance. Neonatal respiratory distress, rhinosinusitis, recurrent chest infections, wet cough, and otitis media are respiratory presentations of this disease.

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  • A phase 1/1b study is being conducted to evaluate the safety and recommended dose of intrathecal (IT) nivolumab, given alongside intravenous (IV) nivolumab, for treating patients with melanoma and leptomeningeal disease (LMD).
  • The study, which involved 25 metastatic melanoma patients, found no dose-limiting toxicities, establishing the safe IT nivolumab dose at 50 mg administered with 240 mg of IV nivolumab every two weeks.
  • The median overall survival (OS) was 4.9 months, with 44% of patients alive at 26 weeks and 26% at 52 weeks, indicating potential effectiveness while
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  • The Borna disease virus (BoDV-1) is a serious zoonotic virus linked to fatal encephalitis in humans, with two children in the same village diagnosed with it three years apart.
  • The second case featured earlier diagnosis and treatment, involving antiviral drugs, but still ended fatally, while viral RNA was found in bodily fluids, presenting a risk to healthcare workers.
  • The study calls for urgent improvements in treatment, awareness, and understanding of transmission, while questioning whether the cases indicate an ongoing outbreak or just isolated incidents.
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  • Patients with inherited CARMIL2 or CD28 deficiencies show defective T cell signaling, but CARMIL2's role is less understood.
  • Research indicates that the mutant CARMIL2 alleles affect T cell activation and lead to specific immunological issues including low counts of memory T cells and NK cells, as well as weak antibody responses.
  • CARMIL2 deficiency leads to serious health issues by age 10, including frequent infections and inflammation, and milder symptoms are observed in patients with somatic reversions in T cells.
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  • Toll-like receptors (TLRs), especially TLR4 with its co-receptor MD2, play a crucial role in recognizing microbes and triggering the body’s immune response against infections, particularly from gram-negative bacteria.
  • A patient's genetic analysis revealed a mutation in the LY96 gene (which encodes for MD2) that led to significant immune system dysfunction, evidenced by impaired signaling and cytokine production in response to bacterial challenges.
  • Findings suggest that MD2 deficiency can lead to weakened immune responses to gram-negative bacteria, highlighting the need for further understanding of its clinical implications and potential therapeutic targets in treating inflammatory diseases.
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Patients with cancer are at increased risk for readmission, which can be associated with increased healthcare costs and poor patient outcomes, because of the nature of the disease, treatment complexity, and symptom management.

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  • * Researchers analyze neutrophils from patients with known genetic variations, identifying key differences in their protein composition (proteome).
  • * Experiments using human stem cells and zebrafish models show that SRP deficiency disrupts important cellular processes needed for proper neutrophil development.
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Background: Immunodeficiency, centromeric instability, and facial anomalies (ICF) syndrome is a rare autosomal recessive disorder. ICF1 is caused by bi-allelic mutations in the gene encoding deoxyribonucleic acid methyltransferase-3B (DNMT3B). Herein, we report a novel homozygous DNMT3B mutation in a patient with ICF1.

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NOD2 polymorphisms may affect sensing of the bacterial muramyl dipeptide (MDP) and trigger perturbed inflammatory responses. Genetic screening of a patient with immunodeficiency and enteropathy revealed a rare homozygous missense mutation in the first CARD domain of NOD2 (ENST00000300589; c.160G > A, p.

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Background: Chromosome Xp21 deletion syndrome is a rare X-linked recessive defect that occurs as a result of multiple gene deletions, including Glycerol kinase (GK) and its neighboring genes, dystrophin, which causes Duchenne muscular dystrophy (DMD), and NR0B1, which causes congenital adrenal hypoplasia (CAHhttps://www.omim.org/entry/300200).

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Inflammatory bowel disease (IBD) is characterized by inappropriate immune responses to the microbiota in genetically susceptible hosts, but little is known about the pathways that link individual genetic alterations to microbiota-dependent inflammation. Here, we demonstrated that the loss of X-linked inhibitor of apoptosis protein (XIAP), a gene associated with Mendelian IBD, rendered Paneth cells sensitive to microbiota-, tumor necrosis factor (TNF)–, receptor-interacting protein kinase 1 (RIPK1)–, and RIPK3-dependent cell death. This was associated with deficiency in Paneth cell–derived antimicrobial peptides and alterations in the stratification and composition of the microbiota.

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Cytoplasmic double-stranded RNA is sensed by RIG-I-like receptors (RLRs), leading to induction of type I interferons (IFN-Is), proinflammatory cytokines, and apoptosis. Here, we elucidate signaling mechanisms that lead to cytokine secretion and cell death induction upon stimulation with the bona fide RIG-I ligand 5'-triphosphate RNA (3p-RNA) in tumor cells. We show that both outcomes are mediated by dsRNA-receptor families with RLR being essential for cytokine production and IFN-I-mediated priming of effector pathways but not for apoptosis.

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Analysis of autoinflammatory and immunodeficiency disorders elucidates human immunity and fosters the development of targeted therapies. Oligoadenylate synthetase 1 is a type I interferon-induced, intracellular double-stranded RNA (dsRNA) sensor that generates 2'-5'-oligoadenylate to activate ribonuclease L (RNase L) as a means of antiviral defense. We identified four de novo heterozygous gain-of-function variants in six patients with a polymorphic autoinflammatory immunodeficiency characterized by recurrent fever, dermatitis, inflammatory bowel disease, pulmonary alveolar proteinosis, and hypogammaglobulinemia.

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Background: Severe congenital neutropenia (SCN4) caused by mutations in glucose-6- phosphatase catalytic subunit 3 (G6PC3) is characterized by recurrent infections due to severe neutropenia, may be accompanied by other extra-hematopoietic manifestations; including structural heart defects, urogenital abnormalities, prominent superficial venous markings, growth retention, and inflammatory bowel diseases with rare incidence. The homozygous or compound heterozygous mutations of G6PC3 are responsible for most cases of autosomal recessive SCN4. Herein, we present two cases of SCN4 affected by novel mutations in the G6PC3, in addition to a summarized list of variants in G6PC3 gene that are reported as pathogenic and related to the SCN4 phenotype.

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CTLA4-haploinsufficiency is a complex disease of immune dysregulation presenting with a broad spectrum of clinical manifestations. CTLA4-Fc fusion proteins such as abatacept have been described to alleviate immune dysregulation in several adult cases of CTLA4-haploinsufficiency. However, until now only few cases of pediatric CTLA4-haploinsufficiency treated with abatacept have been described.

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Bi-allelic variants in the dedicator of cytokinesis 8 (DOCK8) gene cause a combined immunodeficiency, characterized by recurrent sinopulmonary and skin infections, food allergies, eczema, eosinophilia, and elevated IgE. Long-term outcome is poor given susceptibility to infections, malignancy, and vascular complications. Allogeneic hematopoietic stem cell transplantation is currently the only curative treatment option and has shown promising outcome.

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