Publications by authors named "Sara Hariri"

In the rapidly evolving healthcare domain, the ability to structure and interpret contextual medical data is crucial for delivering personalized and efficient patient care. While many existing studies attempt to define medical context through diverse categorizations, they often lack completeness or applicability in the real-world healthcare domain. This paper introduces a novel and comprehensive context categorization model composed of fifteen well-defined categories, bridging the gap between theoretical models and practical requirements in telemonitoring systems for chronic disease management.

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Chromosomal linkages formed through crossover recombination are essential for accurate segregation of homologous chromosomes during meiosis. The DNA events of recombination are linked to structural components of meiotic chromosomes. Imperatively, the biased resolution of double-Holliday junction intermediates (dHJs) into crossovers occurs within the synaptonemal complex (SC), the meiosis-specific structure that mediates end-to-end synapsis of homologs during the pachytene stage.

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53BP1 plays a crucial role in regulating DNA damage repair pathway choice and checkpoint signaling in somatic cells; however, its role in meiosis has remained enigmatic. In this study, we demonstrate that the Caenorhabditis elegans ortholog of 53BP1, HSR-9, associates with chromatin in both proliferating and meiotic germ cells. Notably, HSR-9 is enriched on the X chromosome pair in pachytene oogenic germ cells.

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Article Synopsis
  • The protein 53BP1 is important for DNA damage repair and checkpoint signaling in somatic cells, while its function in meiosis is less understood.
  • The study reveals that HSR-9, the counterpart of 53BP1, binds to chromatin in both growing and meiotic germ cells, showing higher levels on chromosome pairs in specific stages of oogenesis.
  • HSR-9 influences the processing of amino acid sequences in meiotic double strand breaks and contributes to chromosome segregation, indicating it has both shared and distinct roles compared to its ortholog in somatic cells.
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In mice, mutation of results in embryonic lethality, which is partially suppressed by mutation. In contrast, mutation of the BRCA1 ortholog, or its binding partner, , lead to only mild embryonic lethality. We show that in , and embryonic lethality is enhanced when ortholog, , is also mutated.

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Biological sex affects numerous aspects of biology, yet how sex influences different biological processes have not been extensively studied at the molecular level. Caenorhabditis elegans, with both hermaphrodites (functionally females as adults) and males, is an excellent system to uncover how sex influences physiology. Here, we describe a method to isolate large quantities of C.

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Background: Biofilm-associated bacteria have been observed in both breast implant revision and tissue expander-implant exchange surgeries. The utilization of antimicrobial solutions in breast surgery, especially those containing triple antibiotics (TAB) and/or 10% povidone-iodine (PI), may help reduce existing biofilm-associated bacteria, which is particularly important in a mature breast pocket that may contain residual bacteria from a previously colonized implant surface or, theoretically, bacteria that may arrive postoperatively through hematogenous spread.

Objectives: A series of in vitro assessments was performed to evaluate the antimicrobial utility of TAB and PI, either alone or in combination, against preformed biofilm-associated bacteria.

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Background: Planktonic bacteria can be inadvertently introduced during breast surgery procedures, which are hypothesized to lead to complications such as infection, capsular contracture, breast implant-associated anaplastic large cell lymphoma, and a prolonged local inflammatory response. The utilization of antimicrobial solutions such as triple antibiotic solution (TAB) and/or 10% povidone-iodine (PI) in breast pocket irrigation or implant soaking has been proposed to reduce planktonic bacterial attachment and potential complications.

Objectives: A series of in vitro assessments were performed to evaluate the antimicrobial utility of TAB and PI, either alone or in combination, against planktonic bacteria.

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Meiosis is regulated in a sex-specific manner to produce two distinct gametes, sperm and oocytes, for sexual reproduction. To determine how meiotic recombination is regulated in spermatogenesis, we analyzed the meiotic phenotypes of mutants in the tumor suppressor E3 ubiquitin ligase BRC-1-BRD-1 complex in male meiosis. Unlike in mammals, this complex is not required for meiotic sex chromosome inactivation, the process whereby hemizygous sex chromosomes are transcriptionally silenced.

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Article Synopsis
  • Fourier transform infrared (FTIR) spectroscopy is being explored for biological sample analysis but faces challenges like spectral distortion due to Mie scattering from cell size similarities with IR wavelengths.
  • In this research, five factors influencing scattering—cell size, shape, granularity, circularity, and edge irregularities—were analyzed using real biological cell data to improve accuracy in FTIR analysis.
  • An algorithm incorporating these factors demonstrated high accuracy, showing over 97% similarity with ATR-FTIR spectra across various cell lines, outperforming existing methods in precision and correctness.
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Biomaterials varying in physical properties, chemical composition and biofunctionalities can be used as powerful tools to regulate skeletal muscle-specific cellular behaviors, including myogenic differentiation of progenitor cells. Biomaterials with defined topographical cues (e.g.

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Objective: To evaluate the influence of cardiac arrest-resuscitated donors (CARDs) on the outcome of heart recipients.

Methods: Patients transplanted between July 2004 and December 2012 were divided into 2 groups according to the history of cardiac arrest in donors and their clinical records were retrospectively reviewed.

Results: A total of 584 heart transplantations were performed during the study period, and 117 recipients received an organ from a CARD.

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