Publications by authors named "Mehr S"

Germline homozygous loss-of-function mutations in TET2 result in significant childhood immunodeficiency that resembles autoimmune lymphoproliferative syndrome and predisposes one to lymphoma. The implications of heterozygous variants are less well understood. We describe four patients with heterozygous germline loss-of-function TET2 mutations who presented with B-cell lymphoma on a background of chronic lymphadenopathy and autoimmune features.

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Experimental cell culture models that mimic the intricate features of organs offer significant potential for fundamental research and clinical applications. In order to enhance the growth of organoids, various matrices have been developed to replicate the essential character-istics of the tissue microenvironment through physical, chemical, and mechanical cues. Recent advancements in biomaterial technology have further refined the cultivation of organoids.

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Background: This investigation investigates the anti-inflammatory and fibrinolytic effects of a cocktail of probiotics derived from traditional dairy products in a murine model of ulcerative colitis (UC).

Materials And Methods: A mix of newly isolated probiotics containing , and was characterized and orally administered to inbred eight-week-old C57BL/6 male mice (n = 6). Clinical symptoms, pathohistological changes, and inflammatory and fibrosis markers were analyzed in the existence and absence of probiotics in colitis mice.

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Article Synopsis
  • Sphingosine-1-phosphate lyase insufficiency syndrome (SPLIS) is a rare genetic disorder linked to severe health issues like nephrotic syndrome, adrenal insufficiency, and various systemic symptoms, primarily caused by mutations in the SGPL1 gene.
  • A study of 76 SPLIS patients found that overall survival is around 50%, with survival influenced by factors such as age at diagnosis, organ involvement, whether the patient received a kidney transplant, and specific SGPL1 genotypes.
  • Children diagnosed with SPLIS nephropathy before age one have a significantly worse survival rate compared to those diagnosed after one year, highlighting the importance of early diagnosis and potential interventions.
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Neurodegenerative diseases (NDDs) are a class of neurological disorders marked by the progressive loss of neurons that afflict millions of people worldwide. These illnesses affect brain connection, impairing memory, cognition, behavior, sensory perception, and motor function. Alzheimer's, Parkinson's, and Huntington's diseases are examples of common NDDs, which frequently include the buildup of misfolded proteins.

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Humans produce two forms of cognitively complex vocalizations: speech and song. It is debated whether these differ based primarily on culturally specific, learned features, or if acoustical features can reliably distinguish them. We study the spectro-temporal modulation patterns of vocalizations produced by 369 people living in 21 urban, rural, and small-scale societies across six continents.

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  • Congress passed the Biologic Price Competition and Innovation Act of 2009 to encourage competition and reduce rising costs of biologic medicines.
  • As of April 15, 2024, the FDA has approved 49 biosimilars across 15 categories, resulting in significant savings of $23.6 billion for the US health system through 2022.
  • Despite high initial discounts, adalimumab biosimilars have only gained a 3% market share due to preference for rebates over discounts, which may negatively impact future biosimilar development and expected savings.
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Current approaches to evaluate molecular complexity use algorithmic complexity, rooted in computer science, and thus are not experimentally measurable. Directly evaluating molecular complexity could be used to study directed vs undirected processes in the creation of molecules, with potential applications in drug discovery, the origin of life, and artificial life. Assembly theory has been developed to quantify the complexity of a molecule by finding the shortest path to construct the molecule from building blocks, revealing its molecular assembly index (MA).

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When we become engrossed in novels, films, games, or even our own wandering thoughts, we can feel present in a reality distinct from the real world. Although this subjective sense of presence is, presumably, a ubiquitous aspect of conscious experience, the mechanisms that produce it are unknown. Correlational studies conducted in virtual reality have shown that we feel more present when we are afraid, motivating claims that physiological changes contribute to presence; however, such causal claims remain to be evaluated.

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Due to self-renewal, differentiation, and limitless proliferation properties, Cancer Stem Cells (CSCs) increase the probability of tumor development. These cells are identified by using CSC markers, which are highly expressed proteins on the cell surface of CSCs. Recently, the therapeutic application of CSCs as novel biomarkers improved both the prognosis and diagnosis outcome of colorectal Cancer.

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  • - Widespread replication and generalization failures in science highlight the need for diverse and large-scale testing, suggesting that robust results are often not achieved due to methodological limitations.
  • - Developmental psychology specifically should adopt citizen science, where volunteers help gather data, as a solution to enhance the diversity and scale of research samples.
  • - While citizen science has proved effective in fields like astronomy and ecology, it is becoming increasingly valuable in developmental psychology, despite some practical challenges and limitations.
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  • Rapid advancements in robotic platforms for chemistry are hindered by their current inability to adapt to changing conditions in real-time.
  • A new dynamically programmable system has been developed that uses seven sensors to monitor reactions continuously, enabling it to optimize and discover new molecules efficiently.
  • The system successfully demonstrated closed-loop optimization through in-line spectroscopy techniques, resulting in significant yield improvements and the discovery of new reactions and molecules.
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To succeed, we posit that research cartography will require high-throughput natural description to identify unknown unknowns in a particular design space. High-throughput natural description, the systematic collection and annotation of representative corpora of real-world stimuli, faces logistical challenges, but these can be overcome by solutions that are deployed in the later stages of integrative experiment design.

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Humans can find music happy, sad, fearful, or spiritual. They can be soothed by it or urged to dance. Whether these psychological responses reflect cognitive adaptations that evolved expressly for responding to music is an ongoing topic of study.

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Unlabelled: Clonal hematopoiesis (CH) at time of autologous stem cell transplant (ASCT) has been shown to be associated with decreased overall survival (OS) and progression-free survival (PFS) in patients with multiple myeloma not receiving immunomodulatory drugs (IMiD). However, the significance of CH in newly diagnosed patients, including transplant ineligible patients, and its effect on clonal evolution during multiple myeloma therapy in the era of novel agents, has not been well studied. Using our new algorithm to differentiate tumor and germline mutations from CH, we detected CH in approximately 10% of 986 patients with multiple myeloma from the Clinical Outcomes in MM to Personal Assessment of Genetic Profile (CoMMpass) cohort (40/529 transplanted and 59/457 non-transplanted patients).

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Despite the variability of music across cultures, some types of human songs share acoustic characteristics. For example, dance songs tend to be loud and rhythmic, and lullabies tend to be quiet and melodious. Human perceptual sensitivity to the behavioral contexts of songs, based on these musical features, suggests that basic properties of music are mutually intelligible, independent of linguistic or cultural content.

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Background: Major fish allergens, including parvalbumin (PV), are heat stable and can withstand extensive cooking processes. Thus, the management of fish allergy generally relies on complete avoidance. Fish-allergic patients may be advised to consume canned fish, as some fish-allergic individuals have reported tolerance to canned fish.

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Introduction And Importance: Mullerian adenosarcoma is a rare malignancy that generally occurs in the uterine corpus but uncommonly, it may be found extrauterine. Ovarian adenosarcoma is extremely rare and often is presented in reproductive age women. Most of them are low grade and have à good prognosis except for adenosarcoma with sarcomatous overgrowth.

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Tonal languages differ from other languages in their use of pitch (tones) to distinguish words. Lifelong experience speaking and hearing tonal languages has been argued to shape auditory processing in ways that generalize beyond the perception of linguistic pitch to the perception of pitch in other domains like music. We conducted a meta-analysis of prior studies testing this idea, finding moderate evidence supporting it.

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Unlabelled: As part of the Multiple Myeloma Research Foundation (MMRF) immune atlas pilot project, we compared immune cells of multiple myeloma bone marrow samples from 18 patients assessed by single-cell RNA sequencing (scRNA-seq), mass cytometry (CyTOF), and cellular indexing of transcriptomes and epitopes by sequencing (CITE-seq) to understand the concordance of measurements among single-cell techniques. Cell type abundances are relatively consistent across the three approaches, while variations are observed in T cells, macrophages, and monocytes. Concordance and correlation analysis of cell type marker gene expression across different modalities highlighted the importance of choosing cell type marker genes best suited to particular modalities.

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