Digital Commons Network^™

Willingness To Accept Monkeypox Vaccine And Its Correlates Among Men Who Have Sex With Men In Southern China: A Web-Based Online Cross-Sectional Study, Xinju Huang, Zhifeng Lin, Jiao Qin, Dee Yu, Fei Zhang, Ganggang Fang, Xi Chen, Jinfeng He, Ping Cen, Mu Li, Rongjing Zhang, Tong Luo, Junjun Jiang, Sanqi An, Hao Liang, Li Ye, Bingyu Liang

Faculty, Staff and Student Publications

BACKGROUND: The May 2022 global outbreak of monkeypox (MPX) poses a threat to the health of men who have sex with men. However, there is limited data on the willingness of MSM to receive monkeypox vaccination in Southern China. This study aimed to assess the knowledge of MPX, concerns regarding MPX, and willingness to receive monkeypox vaccination, as well as their correlates, among MSM in China.

METHODS: We conducted a Web-based online survey of MSM in Southern China from August to September 2022. Data were collected on the socio-demographic characteristics, knowledge, worries, concerns regarding MPX and willingness to receive monkeypox …

Lactulose Vs Polyethylene Glycol For Bowel Preparation: A Single-Center, Prospective, Randomized Controlled Study Based On Bmi, Sun Wenqi, Zhao Bei, Wang Yunrong, Wu Xinrong, Li Yifan, Wang Weiwei, Ni Muhan, Yan Peng, Dou Xiaotan, Li Wen, Yang Hua, Wang Lei, Chen Min

Faculty, Staff and Student Publications

INTRODUCTION: Colonoscopy is currently considered as one of the principal techniques to diagnose the colorectal diseases. Admittedly, qualified bowel preparation before colonoscopy is a premise for high-quality examination. Lower quality bowel preparation might seriously impede visualization of the intestinal mucosa, resulting in missed and misdiagnosed intestinal lesions. Therefore, it is necessary to choose the appropriate oral laxative based on the guarantee of safety and efficacy.

METHODS: This prospective randomized controlled study was conducted to compare lactulose oral solution and polyethylene glycol (PEG) electrolyte powder for bowel preparation using the following indicators: Boston Bowel Preparation Scale, Bowel Bubble Score, detection rate …

Covid-19 Convalescent Plasma Therapy: Long-Term Implications, Hyunah Yoon, Yi Li, Keith S Goldfeld, Gia F Cobb, Caroline L Sturm-Reganato, Luis Ostrosky-Zeichner, Dushyantha T Jayaweera, Julie V Philley, Mahalia S Desruisseaux, Marla J Keller, Judith S Hochman, Liise-Anne Pirofski, Mila B Ortigoza

Faculty, Staff and Student Publications

BACKGROUND: The long-term effect of coronavirus disease 2019 (COVID-19) acute treatments on postacute sequelae of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (PASC) is unknown. The CONTAIN-Extend study explores the long-term impact of COVID-19 convalescent plasma (CCP) therapy on postacute sequelae of SARS-CoV-2 infection (PASC) symptoms and general health 18 months following hospitalization.

METHODS: The CONTAIN-Extend study examined 281 participants from the original CONTAIN COVID-19 trial (CONTAIN-RCT, NCT04364737) at 18 months post-hospitalization for acute COVID-19. Symptom surveys, global health assessments, and biospecimen collection were performed from November 2021 to October 2022. Multivariable logistic and linear regression estimated associations between …

Predicting Suicidality In Late-Life Depression By 3d Convolutional Neural Network And Cross-Sample Entropy Analysis Of Resting-State Fmri, Chemin Lin, Chih-Mao Huang, Wei Chang, You-Xun Chang, Ho-Ling Liu, Shu-Hang Ng, Huang-Li Lin, Tatia Mei-Chun Lee, Shwu-Hua Lee, Shun-Chi Wu

Faculty, Staff and Student Publications

BACKGROUND: Predicting suicide is a pressing issue among older adults; however, predicting its risk is difficult. Capitalizing on the recent development of machine learning, considerable progress has been made in predicting complex behavior such as suicide. As depression remained the strongest risk for suicide, we aimed to apply deep learning algorithms to identify suicidality in a group with late-life depression (LLD).

METHODS: We enrolled 83 patients with LLD, 35 of which were non-suicidal and 48 were suicidal, including 26 with only suicidal ideation and 22 with past suicide attempts, for resting-state functional magnetic resonance imaging (MRI). Cross-sample entropy (CSE) analysis …

Probing Membrane-Associated Cytoskeletal Oligomers Of The Bacterial Divisome By Electron Microscopy And Tomography, Bo Hu, William Margolin

Faculty, Staff and Student Publications

The cell division machinery or "divisome" of many bacteria, including Escherichia coli, contains homologs of tubulin (FtsZ) and actin (FtsA) that interact with each other to promote the synthesis of septal peptidoglycan. FtsA oligomers have an essential role as a track for tethering dynamically treadmilling FtsZ protofilaments to the cytoplasmic membrane. Other bacterial cytoskeletal oligomers such as MreB also assemble on and move along the membrane. Structures of these oligomers on membranes in vitro may mimic their behavior in the cell. Here, we describe a protocol to visualize FtsA oligomeric structures on membranes and their interactions with FtsZ protofilaments using …

In Sickness And In Health-Type I Interferon And The Brain, Wei Cao

Faculty, Staff and Student Publications

Type I interferons (IFN-I) represent a group of pleiotropic cytokines renowned for their antiviral activity and immune regulatory functions. A multitude of studies have unveiled a critical role of IFN-I in the brain, influencing various neurological processes and diseases. In this mini-review, I highlight recent findings on IFN-I's effects on brain aging, Alzheimer's disease (AD) progression, and central nervous system (CNS) homeostasis. The multifaceted influence of IFN-I on brain health and disease sheds light on the complex interplay between immune responses and neurological processes. Of particular interest is the cGAS-STING-IFN-I axis, which extensively participates in brain aging and various forms …

Usp22 Overexpression Fails To Augment Tumor Formation In Mmtv-Erbb2 Mice But Loss Of Function Impacts Mmtv Promoter Activity, Xianghong Kuang, Andrew Salinger, Fernando Benavides, William J Muller, Sharon Y R Dent, Evangelia Koutelou

Faculty, Staff and Student Publications

The Ubiquitin Specific Peptidase 22 (USP22), a component of the Spt-Ada-Gcn5 Acetyltransferase (SAGA) histone modifying complex, is overexpressed in multiple human cancers, but how USP22 impacts tumorigenesis is not clear. We reported previously that Usp22 loss in mice impacts execution of several signaling pathways driven by growth factor receptors such as erythroblastic oncogene B b2 (ERBB2). To determine whether changes in USP22 expression affects ERBB2-driven tumorigenesis, we introduced conditional overexpression or deletion alleles of Usp22 into mice bearing the Mouse mammary tumor virus-Neu-Ires-Cre (MMTV-NIC) transgene, which drives both rat ERBB2/NEU expression and Cre recombinase activity from the MMTV promoter resulting …

Protection Against Fibrosis By A Bacterial Consortium In Metabolic Dysfunction-Associated Steatohepatitis And The Role Of Amino Acid Metabolism, Suet-Ying Kwan, Kristyn A Gonzales, Mohamed A Jamal, Heather L Stevenson, Lin Tan, Philip L Lorenzi, P Andrew Futreal, Ernest T Hawk, Joseph B Mccormick, Susan P Fisher-Hoch, Robert R Jenq, Laura Beretta

Faculty, Staff and Student Publications

The gut microbiota drives progression to liver fibrosis, the main determinant of mortality in metabolic dysfunction-associated steatohepatitis (MASH). In this study, we aimed to identify bacterial species associated with protection against liver fibrosis in a high-risk population, and test their potential to protect against liver fibrosis in vivo. Based on stool shotgun metagenomic sequencing of 340 subjects from a population cohort disproportionally affected by MASH, we identified bacterial species from the Bacteroidales and Clostridiales orders associated with reduced risk of liver fibrosis. A bacterial consortium was subsequently tested in a mouse model of MASH, which demonstrated protective effects against …

Contrastive Learning With Transformer For Adverse Endpoint Prediction In Patients On Dapt Post-Coronary Stent Implantation, Fang Li, Zenan Sun, Ahmed Abdelhameed, Tiehang Duan, Laila Rasmy, Xinyue Hu, Jianping He, Yifang Dang, Jingna Feng, Jianfu Li, Yichen Wang, Tianchen Lyu, Naomi Braun, Si Pham, Michael Gharacholou, Delisa Fairweather, Degui Zhi, Jiang Bian, Cui Tao

Faculty, Staff and Student Publications

Background: Effective management of dual antiplatelet therapy (DAPT) following drug-eluting stent (DES) implantation is crucial for preventing adverse events. Traditional prognostic tools, such as rule-based methods or Cox regression, despite their widespread use and ease, tend to yield moderate predictive accuracy within predetermined timeframes. This study introduces a new contrastive learning-based approach to enhance prediction efficacy over multiple time intervals.

Methods: We utilized retrospective, real-world data from the OneFlorida + Clinical Research Consortium. Our study focused on two primary endpoints: ischemic and bleeding events, with prediction windows of 1, 2, 3, 6, and 12 months post-DES implantation. Our approach first …

Usp22 Overexpression Fails To Augment Tumor Formation In Mmtv-Erbb2 Mice But Loss Of Function Impacts Mmtv Promoter Activity, Xianghong Kuang, Andrew Salinger, Fernando Benavides, William J Muller, Sharon Y R Dent, Evangelia Koutelou

Faculty, Staff and Student Publications

The Ubiquitin Specific Peptidase 22 (USP22), a component of the Spt-Ada-Gcn5 Acetyltransferase (SAGA) histone modifying complex, is overexpressed in multiple human cancers, but how USP22 impacts tumorigenesis is not clear. We reported previously that Usp22 loss in mice impacts execution of several signaling pathways driven by growth factor receptors such as erythroblastic oncogene B b2 (ERBB2). To determine whether changes in USP22 expression affects ERBB2-driven tumorigenesis, we introduced conditional overexpression or deletion alleles of Usp22 into mice bearing the Mouse mammary tumor virus-Neu-Ires-Cre (MMTV-NIC) transgene, which drives both rat ERBB2/NEU expression and Cre recombinase activity from the MMTV promoter resulting …

The Use Of Large Language Models To Accelerate Literature Review Towards Digital Health Equity And Inclusiveness, Taylor B Harrison, Dian Hu, Sunyang Fu, Hongfang Liu

Faculty, Staff and Student Publications

Digital health technologies (DHTs) have revolutionized clinical trials, offering unprecedented opportunities to streamline processes, enhance patient engagement, and improve data quality. Growing technology device and broadband access are contributing to the increasing number of DHT-enabled trials. Ideally, DHTs have the potential to make clinical research more inclusive and diverse. However, while the variety in digital technologies and implementations present a strong display of healthcare innovation, major challenges arise concerning DHT generalizability and translation into real-world medical practice. In this study, we report our efforts in accelerating the literature review process related to the use of DHTs in randomized controlled trials …

Interleukin-1beta And Inflammasome Expression In Spinal Cord Following Chronic Constriction Injury In Male And Female Rats, Suzanne M Green-Fulgham, Jayson B Ball, Andrew J Kwilasz, Michael E Harland, Matthew G Frank, Joseph M Dragavon, Peter M Grace, Linda R Watkins

Faculty, Staff and Student Publications

Females represent a majority of chronic pain patients and show greater inflammatory immune responses in human chronic pain patient populations as well as in animal models of neuropathic pain. Recent discoveries in chronic pain research have revealed sex differences in inflammatory signaling, a key component of sensory pathology in chronic neuropathic pain, inviting more research into the nuances of these sex differences. Here we use the chronic constriction injury (CCI) model to explore similarities and differences in expression and production of Inflammatory cytokine IL-1beta in the lumbar spinal cord, as well as its role in chronic pain. We have discovered …

Identifying Genomic Data Sources From Biomedical Literature, Xu Zuo, Ashley Gilliam, Yan Hu, Kalpana Raja, Kirk Roberts, Hua Xu

Faculty, Staff and Student Publications

Genomic research is becoming increasingly data-intensive, yet the proper reference of data remains a persistent challenge. Despite various efforts to establish and standardize data citation practices, scientists frequently fall short of accurately referencing data in their papers. This deficiency complicates the attribution of contributions to data providers and impedes the reproducibility of findings in genomic research. This study addresses this gap by introducing a gold standard corpus designed to identify mentions of genomic data sources and associated attributes, thereby offering insights into data source availability and accessibility. Within this corpus, we categorize entities into six classes, encompassing three primary entities …

Dissecting The Shared Genetic Architecture Between Alzheimer’S Disease And Frailty: A Cross-Trait Meta-Analyses Of Genome-Wide Association Studies, Nitesh Enduru, Brisa S Fernandes, Zhongming Zhao

Faculty, Staff and Student Publications

Introduction: Frailty is the most common medical condition affecting the aging population, and its prevalence increases in the population aged 65 or more. Frailty is commonly diagnosed using the frailty index (FI) or frailty phenotype (FP) assessments. Observational studies have indicated the association of frailty with Alzheimer's disease (AD). However, the shared genetic and biological mechanism of these comorbidity has not been studied.

Methods: To assess the genetic relationship between AD and frailty, we examined it at single nucleotide polymorphism (SNP), gene, and pathway levels.

Results: Overall, 16 genome-wide significant loci (15 unique loci) (p meta-analysis < 5 × 10-8) and 22 genes (21 unique genes) were identified between AD and frailty using cross-trait meta-analysis. The 8 shared loci implicated 11 genes: CLRN1-AS1, CRHR1 …

Metarnn: Differentiating Rare Pathogenic And Rare Benign Missense Snvs And Indels Using Deep Learning, Fang Li, Zenan Sun, Ahmed Abdelhameed, Tiehang Duan, Laila Rasmy, Xinyue Hu, Jianping He, Yifang Dang, Jingna Feng, Jianfu Li, Yichen Wang, Tianchen Lyu, Naomi Braun, Si Pham, Michael Gharacholou, Delisa Fairweather, Degui Zhi, Jiang Bian, Cui Tao

Faculty, Staff and Student Publications

BACKGROUND: Effective management of dual antiplatelet therapy (DAPT) following drug-eluting stent (DES) implantation is crucial for preventing adverse events. Traditional prognostic tools, such as rule-based methods or Cox regression, despite their widespread use and ease, tend to yield moderate predictive accuracy within predetermined timeframes. This study introduces a new contrastive learning-based approach to enhance prediction efficacy over multiple time intervals.

METHODS: We utilized retrospective, real-world data from the OneFlorida + Clinical Research Consortium. Our study focused on two primary endpoints: ischemic and bleeding events, with prediction windows of 1, 2, 3, 6, and 12 months post-DES implantation. Our approach first …

Polaris: A Phase 2 Trial Of Encorafenib Plus Binimetinib Evaluating High-Dose And Standard-Dose Regimens In Patients With Braf V600-Mutant Melanoma With Brain Metastasis, Alexander M Menzies, Georgina V Long, Amiee Kohn, Hussein Tawbi, Jeffrey Weber, Keith Flaherty, Grant A Mcarthur, Paolo A Ascierto, Yanina Pfluger, Karl Lewis, Katy K Tsai, Omid Hamid, Hans Prenen, Luis Fein, Erjian Wang, Carolin Guenzel, Fan Zhang, Joseph F Kleha, Alessandra Di Pietro, Michael A Davies

Faculty, Staff and Student Publications

Background: POLARIS (phase 2 [ph2]; NCT03911869) evaluated encorafenib (BRAF inhibitor) in combination with binimetinib (MEK1/2 inhibitor) in BRAF/MEK inhibitor-naïve patients with BRAF V600-mutant melanoma with asymptomatic brain metastases.

Methods: The safety lead-in (SLI) assessed tolerability for high-dose encorafenib 300 mg twice daily (BID) plus binimetinib 45 mg BID. If the high dose was tolerable in ph2, patients would be randomized to receive high or standard dose (encorafenib 450 mg once daily [QD] plus binimetinib 45 mg BID). Otherwise, standard dose was evaluated as the recommended ph2 dose (RP2D). Patients who tolerated standard dosing during Cycle 1 could be dose …

Association Of Preoperative Lung Function With Complications After Lobectomy Using Race-Neutral And Race-Specific Normative Equations, Ajay Sheshadri, Ravi Rajaram, Aaron Baugh, Mario Castro, Arlene M Correa, Felipe Soto, Carrie R Daniel, Liang Li, Scott E Evans, Burton F Dickey, Ara A Vaporciyan, David E Ost

Faculty, Staff and Student Publications

Rationale: Pulmonary function testing (PFT) is performed to aid patient selection before surgical resection for non-small cell lung cancer (NSCLC). The interpretation of PFT data relies on normative equations, which vary by race, but the relative strength of association of lung function using race-specific or race-neutral normative equations with postoperative pulmonary complications is unknown. Objectives: To compare the strength of association of lung function, using race-neutral or race-specific equations, with surgical complications after lobectomy for NSCLC.

Methods: We studied 3,311 patients who underwent lobectomy for NSCLC and underwent preoperative PFT from 2001 to 2021. We used Global Lung Function Initiative …

Usp22 Overexpression Fails To Augment Tumor Formatiaon In Mmtv-Erbb2 Mice But Loss Of Function Impacts Mmtv Promoter Activity, Xianghong Kuang, Andrew Salinger, Fernando Benavides, William J Muller, Sharon Y R Dent, Evangelia Koutelou

Faculty, Staff and Student Publications

The Ubiquitin Specific Peptidase 22 (USP22), a component of the Spt-Ada-Gcn5 Acetyltransferase (SAGA) histone modifying complex, is overexpressed in multiple human cancers, but how USP22 impacts tumorigenesis is not clear. We reported previously that Usp22 loss in mice impacts execution of several signaling pathways driven by growth factor receptors such as erythroblastic oncogene B b2 (ERBB2). To determine whether changes in USP22 expression affects ERBB2-driven tumorigenesis, we introduced conditional overexpression or deletion alleles of Usp22 into mice bearing the Mouse mammary tumor virus-Neu-Ires-Cre (MMTV-NIC) transgene, which drives both rat ERBB2/NEU expression and Cre recombinase activity from the MMTV promoter resulting …

Belzutifan, Hif-2Α Inhibitor, And Clear Cell Renal Cell Carcinoma With Somatic Von-Hippel-Lindau Loss-Of-Function Mutation, Kok Hoe Chan, Ningjing Li, Ran Lador, Mark Amsbaugh, Anneliese Gonzalez, Putao Cen

Faculty, Staff and Student Publications

The Von-Hippel-Lindau (VHL) gene, acting as a tumor suppressor, plays a crucial role in the tumorigenesis of clear cell renal cell carcinoma (ccRCC). Approximately 90% of individuals with advanced ccRCC exhibit somatic mutations in the VHL gene. Belzutifan, orally administered small-molecule inhibitor of hypoxia-induced factor-2α, has demonstrated promising efficacy in solid tumors associated with germline loss-of-function mutations in VHL, including ccRCC. However, its impact on cases with somatic or sporadic VHL mutations remains unclear. Here, we present 2 cases where belzutifan monotherapy was employed in patients with advanced ccRCC and somatic loss-of-function mutations in VHL. Both patients exhibited a swift …

Editorial: Emerging Anti-Cancer Compounds And Immunomodulators For Pancreatic Cancer Treatment, Kathleen E Delgiorno, Stephen Safe, Jennifer M Bailey-Lundberg

Faculty, Staff and Student Publications

No abstract provided.

Chronic Lymphocytic Leukemia: Novel Perspectives - How To Teach An Old Dog New Tricks, Tamar Tadmor, Jan Burger

Faculty, Staff and Student Publications

No abstract provided.

First-In-Human Phase 1 Study Of The Arginase Inhibitor Incb001158 Alone Or Combined With Pembrolizumab In Patients With Advanced Or Metastatic Solid Tumours, Aung Naing, Kyriakos P Papadopoulos, Michael J Pishvaian, Osama Rahma, Glenn J Hanna, Elena Garralda, Omar Saavedra, Sven Gogov, Howard Kallender, Lulu Cheng, Michael Smith, Xuejun Chen, Emil Kuriakose, Todd Bauer

Faculty, Staff and Student Publications

Objective: The arginase inhibitor INCB001158 was evaluated for safety (primary endpoint) in locally advanced or metastatic solid tumours; pharmacokinetics, pharmacodynamics and efficacy were also assessed.

Methods and analysis: In this non-randomised, open-label, three-part phase 1 study, INCB001158 was orally administered two times per day as monotherapy or in combination with intravenous pembrolizumab 200 mg every 3 weeks. Dose expansion was conducted in tumour-type cohorts (with or without prior anti-PD-1/PD-L1 (programmed death protein 1/programmed death ligand 1) therapy).

Results: A total of 107 patients received INCB001158 50-150 mg two times per day as monotherapy, and 153 patients, including 6 with moderate …

Hypoxia-Adenosine Axis As Therapeutic Targets For Acute Respiratory Distress Syndrome, Katherine Figarella, Jieun Kim, Wei Ruan, Tingting Mills, Holger Klaus Eltzschig, Xiaoyi Yuan

Faculty, Staff and Student Publications

The human respiratory and circulatory systems collaborate intricately to ensure oxygen delivery to all cells, which is vital for ATP production and maintaining physiological functions and structures. During limited oxygen availability, hypoxia-inducible factors (HIFs) are stabilized and play a fundamental role in maintaining cellular processes for hypoxia adaptation. First discovered during investigations of erythropoietin production regulation, HIFs influence physiological and pathological processes, including development, inflammation, wound healing, and cancer. HIFs promote extracellular adenosine signaling by enhancing adenosine generation and receptor signaling, representing an endogenous feedback mechanism that curbs excessive inflammation, supports injury resolution, and enhances hypoxia tolerance. This is especially …

Efficacy And Safety Of Trastuzumab Deruxtecan In Patients With Her2-Expressing Solid Tumors: Primary Results From The Destiny-Pantumor02 Phase Ii Trial, Funda Meric-Bernstam, Vicky Makker, Ana Oaknin, Do-Youn Oh, Susana Banerjee, Antonio González-Martín, Kyung Hae Jung, Iwona Ługowska, Luis Manso, Aránzazu Manzano, Bohuslav Melichar, Salvatore Siena, Daniil Stroyakovskiy, Anitra Fielding, Yan Ma, Soham Puvvada, Norah Shire, Jung-Yun Lee

Faculty, Staff and Student Publications

PURPOSE: Trastuzumab deruxtecan (T-DXd) is a human epidermal growth factor 2 (HER2)-directed antibody-drug conjugate approved in HER2-expressing breast and gastric cancers and HER2-mutant non-small-cell lung cancer. Treatments are limited for other HER2-expressing solid tumors.

METHODS: This open-label phase II study evaluated T-DXd (5.4 mg/kg once every 3 weeks) for HER2-expressing (immunohistochemistry [IHC] 3+/2+ by local or central testing) locally advanced or metastatic disease after ≥1 systemic treatment or without alternative treatments. The primary end point was investigator-assessed confirmed objective response rate (ORR). Secondary end points included safety, duration of response, progression-free survival (PFS), and overall survival (OS).

RESULTS: At primary …

First Evidence Of Microplastic Inhalation Among Free-Ranging Small Cetaceans, Miranda K Dziobak, Andreas Fahlman, Randall S Wells, Ryan Takeshita, Cynthia Smith, Austin Gray, John Weinstein, Leslie B Hart

Faculty, Staff and Student Publications

Plastic is a ubiquitous environmental contaminant, resulting in widespread exposure across terrestrial and marine spaces. In the environment, plastics can degrade into microparticles where exposure has been documented in a variety of fauna at all trophic levels. Human epidemiological studies have found relationships between inhaled microplastics and oxidative stress and inflammation. Previous studies of bottlenose dolphins (Tursiops truncatus) have reported prevalent exposure to plasticizing chemicals (e.g., phthalates) as well as particle loads in gastrointestinal tracts, but exposure from inhalation has not yet been studied. The objective of this study was to determine if inhalation is a viable route of microplastic …

Does An Early, Balanced Resuscitation Strategy Reduce The Incidence Of Hypofibrinogenemia In Hemorrhagic Shock?, David T Lubkin, Krislynn M Mueck, Gabrielle E Hatton, Jason B Brill, Mariela Sandoval, Jessica C Cardenas, Charles E Wade, Bryan A Cotton

Faculty, Staff and Student Publications

OBJECTIVES: Some centers have recommended including concentrated fibrinogen replacement in massive transfusion protocols (MTPs). Given our center's policy of aggressive early balanced resuscitation (1:1:1), beginning prehospital, we hypothesized that our rates of hypofibrinogenemia may be lower than those previously reported.

METHODS: In this retrospective cohort study, patients presenting to our trauma center November 2017 to April 2021 were reviewed. Patients were defined as hypofibrinogenemic (HYPOFIB) if admission fibrinogen

RESULTS: Of 29 782 patients, 6618 level 1 activations, and 1948 patients receiving emergency release blood,

CONCLUSIONS: Low rates of hypofibrinogenemia were found in our center which treats hemorrhage with early, balanced …

Preparation Of Uniformly Oriented Inverted Inner (Cytoplasmic) Membrane Vesicles From Gram-Negative Bacterial Cells, Mikhail Bogdanov

Faculty, Staff and Student Publications

The complex double-membrane organization of the envelope in Gram-negative bacteria places unique biosynthetic and topological constraints that can affect translocation of lipids and proteins synthesized on cytoplasm facing leaflet of cytoplasmic (inner) membrane (IM), across IM and between IM and outer membrane (OM). Uniformly oriented inside-out (ISO) vesicles became functional requisite for many biochemical reconstitution functional assays, vectorial proteomics, and vectorial lipidomics. Due to these demands, it is necessary to develop simple and reliable approaches for preparation of uniformly oriented IM membrane vesicles and validation of their sidedness. The uniformly ISO oriented membrane vesicles which have the cytoplasmic face of …

Exploring Uniform, Dual, And Dynamic Topologies Of Membrane Proteins By Substituted Cysteine Accessibility Method (Scam™), Mikhail Bogdanov

Faculty, Staff and Student Publications

A described simple and advanced protocol for Substituted Cysteine Accessibility Method as applied to transmembrane (TM) orientation (SCAM™) permits a topology analysis of proteins in their native state and can be universally adapted to any membrane system to either systematically map an uniform or identify and quantify the degree of mixed topology or establish transmembrane assembly dynamics from relatively static experimental data such as endpoint topologies of membrane proteins. In this approach, noncritical individual amino acids that are thought to reside in the putative extracellular or intracellular loops of a membrane protein are replaced one at the time by cysteine …

Multiple Unfolded Protein Response Pathways Cooperate To Link Cytosolic Dsdna Release To Stimulator Of Interferon Gene Activation, Tiancheng Hu, Yiping Liu, Jeremy Fleck, Cason King, Elaine Schalk, Zhenyu Zhang, Andrew Mehle, Judith A Smith

Faculty, Staff and Student Publications

The double-stranded DNA (dsDNA) sensor STING has been increasingly implicated in responses to "sterile" endogenous threats and pathogens without nominal DNA or cyclic di-nucleotide stimuli. Previous work showed an endoplasmic reticulum (ER) stress response, known as the unfolded protein response (UPR), activates STING. Herein, we sought to determine if ER stress generated a STING ligand, and to identify the UPR pathways involved. Induction of IFN-β expression following stimulation with the UPR inducer thapsigargin (TPG) or oxygen glucose deprivation required both STING and the dsDNA-sensing cyclic GMP-AMP synthase (cGAS). Furthermore, TPG increased cytosolic mitochondrial DNA, and immunofluorescence visualized dsDNA punctae in …

Post-Covid-19 Cognitive Symptoms In Patients Assisted By A Teleassistance Service: A Retrospective Cohort Study, Lívia Paula Freire Bonfim, Thais Rotsen Correa, Bruno Cabaleiro Cortizo Freire, Thais Marques Pedroso, Daniella Nunes Pereira, Thalita Baptisteli Fernandes, Luciane Kopittke, Clara Rodrigues Alves De Oliveira, Antonio Lucio Teixeira, Milena Soriano Marcolino

Faculty, Staff and Student Publications

INTRODUCTION: Four years after the onset of the COVID-19 pandemic, the frequency of long-term post-COVID-19 cognitive symptoms is a matter of concern given the impact it may have on the work and quality of life of affected people.

OBJECTIVE: To evaluate the incidence of post-acute COVID-19 cognitive symptoms, as well as the associated risk factors.

METHODS: Retrospective cohort, including outpatients with laboratory-confirmed COVID-19 and who were assisted by a public telehealth service provided by the Telehealth Network of Minas Gerais (TNMG), during the acute phase of the disease, between December/2020 and March/2022. Data were collected through a structured questionnaire, applied …