1
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Liu J, Wang L, Zhang X, Wang S, Qin Q. Nervous necrosis virus induced vacuolization is a Rab5- and actin-dependent process. Virulence 2024; 15:2301244. [PMID: 38230744 PMCID: PMC10795790 DOI: 10.1080/21505594.2023.2301244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/28/2023] [Indexed: 01/18/2024] Open
Abstract
Cytoplasmic vacuolization is commonly induced by bacteria and viruses, reflecting the complex interactions between pathogens and the host. However, their characteristics and formation remain unclear. Nervous necrosis virus (NNV) infects more than 100 global fish species, causing enormous economic losses. Vacuolization is a hallmark of NNV infection in host cells, but remains a mystery. In this study, we developed a simple aptamer labelling technique to identify red-spotted grouper NNV (RGNNV) particles in fixed and live cells to explore RGNNV-induced vacuolization. We observed that RGNNV-induced vacuolization was positively associated with the infection time and virus uptake. During infection, most RGNNV particles, as well as viral genes, colocalized with vacuoles, but not giant vacuoles > 3 μm in diameter. Although the capsid protein (CP) is the only structural protein of RGNNV, its overexpression did not induce vacuolization, suggesting that vacuole formation probably requires virus entry and replication. Given that small Rab proteins and the cytoskeleton are key factors in regulating cellular vesicles, we further investigated their roles in RGNNV-induced vacuolization. Using live cell imaging, Rab5, a marker of early endosomes, was continuously located in vacuoles bearing RGNNV during giant vacuole formation. Rab5 is required for vacuole formation and interacts with CP according to siRNA interference and Co-IP analysis. Furthermore, actin formed distinct rings around small vacuoles, while vacuoles were located near microtubules. Actin, but not microtubules, plays an important role in vacuole formation using chemical inhibitors. These results provide valuable insights into the pathogenesis and control of RGNNV infections.
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Affiliation(s)
- Jiaxin Liu
- Biosafety Laboratory, Guangdong Second Provincial General Hospital, Guangzhou, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Liqun Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Xinyue Zhang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Shaowen Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Qiwei Qin
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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2
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Alexander M, Edelman JJ, Yong G. Hybrid Transcatheter Approach to an Iatrogenic Left Ventricle-Coronary Sinus Fistula. JACC Case Rep 2024; 29:102330. [PMID: 38601844 PMCID: PMC11004884 DOI: 10.1016/j.jaccas.2024.102330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/14/2023] [Indexed: 04/12/2024]
Abstract
This clinical case describes a subacute presentation of decompensated heart failure secondary to an iatrogenic left ventricle-to-coronary sinus fistula after sequential mitral valve surgical procedures. Computed tomography was used to select an unconventional hybrid transapical access approach and facilitate successful closure using a vascular plug.
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Affiliation(s)
- Mikhail Alexander
- Department of Cardiology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - J. James Edelman
- Department of Cardiothoracic Surgery, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Gerald Yong
- Department of Cardiology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
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3
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Nuerbahati A, Liao J, Lyu J, Abduwali S, Chiang LY. An actively stabilized, miniaturized epi-fluorescence widefield microscope for real-time observation in vivo. Microsc Res Tech 2024; 87:1044-1051. [PMID: 38217330 DOI: 10.1002/jemt.24493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/08/2023] [Accepted: 12/23/2023] [Indexed: 01/15/2024]
Abstract
Recent developments in real-time, in vivo micro-imaging have allowed for the visualization of tissue pathological changes, facilitating rapid diagnosis. However, miniaturization, magnification, the field of view, and in vivo image stabilization remain challenging factors to reconcile. A key issue for this technology is ensuring it is user friendly for surgeons, enabling them to use the device manually and obtain instantaneous information necessary for surgical decision-making. This descriptive study introduces a handheld, actively stabilized, miniaturized epi-fluorescence widefield microscope (MEW-M) for real-time observation in vivo with high resolution. The methodology of MEW-M system includes high resolution microscopy miniaturization technology, thousandfold shaking suppression (actively stabilized), ultra-photosensitivity, and tailored image signal processing cell image capture and processing technology, which support for the excellent real-time imaging performance of MEW-M system in brain, mammary, liver, lung, and kidney tissue imaging of rats in vivo. With a single-objective and high-frame-rate imaging, the MEW-M system facilitates roving image acquisition, enabling contiguous analysis of large tissue areas. RESEARCH HIGHLIGHTS: A handheld, actively stabilized MEW-M system was introduced. Excellent real-time, in vivo imaging with high resolution and active stabilization in brain, mammary, liver, lung, and kidney tissue of rats.
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Affiliation(s)
| | - Jiasheng Liao
- Dendrite Precision Medical Ltd, Tel Aviv-Jaffa, Israel
| | - Jing Lyu
- Dendrite Precision Medical Ltd, Tel Aviv-Jaffa, Israel
| | - Serk Abduwali
- Dendrite Precision Medical Ltd, Tel Aviv-Jaffa, Israel
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4
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Samaniego EA, Dabus G, Meyers PM, Kan PT, Frösen J, Lanzino G, Welch BG, Volovici V, Gonzalez F, Fifi J, Charbel FT, Hoh BL, Khalessi A, Marks MP, Berenstein A, Pereira VM, Bain M, Colby GP, Narayanan S, Tateshima S, Siddiqui AH, Wakhloo AK, Arthur AS, Lawton MT. Most Promising Approaches to Improve Brain AVM Management: ARISE I Consensus Recommendations. Stroke 2024; 55:1449-1463. [PMID: 38648282 DOI: 10.1161/strokeaha.124.046725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 03/01/2024] [Indexed: 04/25/2024]
Abstract
Brain arteriovenous malformations (bAVMs) are complex, and rare arteriovenous shunts that present with a wide range of signs and symptoms, with intracerebral hemorrhage being the most severe. Despite prior societal position statements, there is no consensus on the management of these lesions. ARISE (Aneurysm/bAVM/cSDH Roundtable Discussion With Industry and Stroke Experts) was convened to discuss evidence-based approaches and enhance our understanding of these complex lesions. ARISE identified the need to develop scales to predict the risk of rupture of bAVMs, and the use of common data elements to perform prospective registries and clinical studies. Additionally, the group underscored the need for comprehensive patient management with specialized centers with expertise in cranial and spinal microsurgery, neurological endovascular surgery, and stereotactic radiosurgery. The collection of prospective multicenter data and gross specimens was deemed essential for improving bAVM characterization, genetic evaluation, and phenotyping. Finally, bAVMs should be managed within a multidisciplinary framework, with clinical studies and research conducted collaboratively across multiple centers, harnessing the collective expertise and centralization of resources.
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Affiliation(s)
- Edgar A Samaniego
- Department of Neurology, Neurosurgery and Radiology, University of Iowa (E.A.S.)
| | - Guilherme Dabus
- Department of Neurosurgery, Baptist Health, Miami, FL (G.D.)
| | - Philip M Meyers
- Department of Radiology and Neurological Surgery, Columbia University, New York (P.M.M.)
| | - Peter T Kan
- Department of Neurological Surgery, University of Texas Medical Branch Galveston (P.T.K.)
| | - Juhana Frösen
- Department of Rehabilitation, Tampere University Hospital, Finland (J.F.)
| | | | - Babu G Welch
- Departments of Neurological Surgery and Radiology; The University of Texas Southwestern, Dallas (B.G.W.)
| | - Victor Volovici
- Department of Neurosurgery, Erasmus MC University Medical Centre, Rotterdam, the Netherlands (V.V.)
| | - Fernando Gonzalez
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD (F.G.)
| | - Johana Fifi
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York (J.F., A.B.)
| | - Fady T Charbel
- Department of Neurosurgery, University of Illinois at Chicago (F.T.C.)
| | - Brian L Hoh
- Department of Neurosurgery, College of Medicine, University of Florida, Gainesville (B.L.H.)
| | | | - Michael P Marks
- Interventional Neuroradiology Division, Stanford University Medical Center, Palo Alto, CA (M.P.M.)
| | - Alejandro Berenstein
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York (J.F., A.B.)
| | - Victor M Pereira
- Department of Neurosurgery, St. Michael's Hospital, Toronto, Canada (V.M.P.)
| | - Mark Bain
- Department of Neurological Surgery, Cleveland Clinic, OH (M.B.)
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles (G.P.C.)
| | - Sandra Narayanan
- Neurointerventional Program and Comprehensive Stroke Program, Pacific Neuroscience Institute, Santa Monica, CA (S.N.)
| | - Satoshi Tateshima
- Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center, Los Angeles (S.T.)
| | - Adnan H Siddiqui
- Department of Neurosurgery, Gates Vascular Institute, Buffalo, New York (A.H.S.)
| | - Ajay K Wakhloo
- Department of Radiology, Tufts University School of Medicine, Boston, MA (A.K.W.)
| | - Adam S Arthur
- Department of Neurosurgery, Semmes-Murphey Clinic, University of Tennessee Health Science Center, Memphis (A.S.A.)
| | - Michael T Lawton
- Neurosurgery, Barrow Neurological Institute, Phoenix, AZ (M.T.L.)
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5
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Li X, Lin Z, Liu C, Bai R, Wu D, Yang J. Glymphatic Imaging in Pediatrics. J Magn Reson Imaging 2024; 59:1523-1541. [PMID: 37819198 DOI: 10.1002/jmri.29040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023] Open
Abstract
The glymphatic system, which facilitates cerebrospinal fluid (CSF) flow through the brain parenchyma, is important for brain development and waste clearance. Advances in imaging techniques, particularly magnetic resonance imaging, have make it possible to evaluate glymphatic structures and functions in vivo. Recently, several studies have focused on the development and alterations of the glymphatic system in pediatric disorders. This review discusses the development of the glymphatic system, advances of imaging techniques and their applications in pediatric disorders. First, the results of the reviewed studies indicate that the development of the glymphatic system is a long-lasting process that continues into adulthood. Second, there is a need for improved glymphatic imaging techniques that are non-invasive and fast to improve suitability for pediatric applications, as some of existing methods use contrast injection and are susceptible to motion artifacts from long scanning times. Several novel techniques are potentially feasible for pediatric patients and may be used in the future. Third, the glymphatic dysfunction is associated with a large number of pediatric disorders, although only a few have recently been investigated. In conclusion, research on the pediatric glymphatic system remains an emerging field. The preliminary applications of glymphatic imaging techniques have provided unique insight into the pathological mechanism of pediatric diseases, but mainly limited in visualization of enlarged perivascular spaces and morphological measurements on CSF volumes. More in-depth studies on glymphatic functions are required to improve our understanding of the mechanisms underlying brain development and pediatric diseases. LEVEL OF EVIDENCE: 5 TECHNICAL EFFICACY: Stage 3.
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Affiliation(s)
- Xianjun Li
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zixuan Lin
- Department of Biomedical Engineering, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, China
| | - Congcong Liu
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ruiliang Bai
- Interdisciplinary Institute of Neuroscience and Technology, School of Medicine, Zhejiang University, Hangzhou, China
| | - Dan Wu
- Department of Biomedical Engineering, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, China
| | - Jian Yang
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- Shaanxi Engineering Research Center of Computational Imaging and Medical Intelligence, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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6
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Nwaji N, Gwak J, Nguyen MC, Nguyen HQ, Kang H, Choi Y, Kim Y, Chen H, Lee J. Emerging potentials of Fe-based nanomaterials for chiral sensing and imaging. Med Res Rev 2024; 44:897-918. [PMID: 38084636 DOI: 10.1002/med.22003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 04/11/2023] [Accepted: 11/26/2023] [Indexed: 04/06/2024]
Abstract
Fe-based nanostructures have possessed promising properties that make it suitable for chiral sensing and imaging applications owing to their ultra-small size, non-toxicity, biocompatibility, excellent photostability, tunable fluorescence, and water solubility. This review summarizes the recent research progress in the field of Fe-based nanostructures and places special emphases on their applications in chiral sensing and imaging. The synthetic strategies to prepare the targeted Fe-based structures were also introduced. The chiral sensing and imaging applications of the nanostructures are discussed in details.
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Affiliation(s)
- Njemuwa Nwaji
- Institute of Materials Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Juyong Gwak
- Department of Chemistry, Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - My-Chi Nguyen
- Institute of Materials Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Huu-Quang Nguyen
- Institute of Materials Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Hyojin Kang
- Department of Chemistry, Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Youngeun Choi
- Department of Chemistry, Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Youngmi Kim
- Department of Chemistry, Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Hongxia Chen
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, PR China
| | - Jaebeom Lee
- Institute of Materials Chemistry, Chungnam National University, Daejeon, Republic of Korea
- Department of Chemistry, Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, Republic of Korea
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7
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Harwood KL, Oganezova K, Orellana KJ, Ashe K, Williams BA, Horneff JG. Rotator Cuff Injuries in the Pediatric Population: A Retrospective Review of Patient Characteristics and Treatment at a Single Center. Sports Health 2024; 16:340-346. [PMID: 37246566 PMCID: PMC11025523 DOI: 10.1177/19417381231174021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND As youth participation in contact and overhead sports has increased in recent decades, so has the occurrence of injuries of the shoulder. Rotator cuff injury (RCI) is an infrequent shoulder pathology in pediatric patients and its description in the literature has been scarce. A greater understanding of RCI characteristics and treatment outcomes in children and adolescents would improve our understanding of this pathology and help to better guide clinical decision-making. HYPOTHESIS To identify pediatric patients with magnetic resonance imaging-confirmed RCI treated at a single center to summarize injury characteristics, treatment, and outcomes. It was hypothesized that injuries would occur predominantly in overhead throwing athletes and would demonstrate good outcomes among both operatively and nonoperatively treated patients. STUDY DESIGN Cross-sectional study. LEVEL OF EVIDENCE Level 4. METHODS A retrospective review of pediatric patients (<18 years old) diagnosed with and treated for an RCI between January 1, 2011 and January 31, 2021. Patient demographics, injury mechanism and type, treatment, and outcomes were collected. Descriptive statistics were performed. Bivariate testing was used to compare operatively and nonoperatively treated cohorts. RESULTS A total of 52 pediatric patients treated for a rotator cuff avulsion, partial tear, or complete tear were identified. Mean age was 15 years and 67% of patients were male. Injuries were related most commonly to participation in throwing sports. Operative management occurred in 23% of patients, while 77% were managed nonoperatively. Treatment cohorts differed based on tear type, with all complete tears being managed operatively (P < 0.01). Associated shoulder pathology was common, with the most frequent finding being anterior shoulder instability pathology. Return to play was longer for operatively managed patients (7.1 vs 4.5 months; P < 0.01). CONCLUSION The present study expands the limited data available regarding RCIs in pediatric patients. Most injuries are associated with sports and involve the supraspinatus tendon. RCIs were associated with good outcomes and low rates of reinjury in patients managed both nonoperative and operatively. RCI should be considered in throwing athletes with shoulder pain, even in skeletally immature patients. CLINICAL RELEVANCE This retrospective study fills the hole in the literature by detailing the patterns associated with RCI characteristics and treatment outcomes. In contrast to studies of adult RCIs, our results suggest that outcomes are good regardless of treatment type.
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Affiliation(s)
- Kathleen L. Harwood
- New York Medical College School of Medicine, New York Medical College, Valhalla, New York
- Department of Orthopedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Karina Oganezova
- Department of Orthopedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- The School of Medicine at the University of Dublin, Trinity College of Dublin, Dublin, Ireland
| | - Kevin J. Orellana
- Department of Orthopedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- The University of Texas Rio Grande Valley School of Medicine, Edinburg, Texas
| | - Katherine Ashe
- Department of Orthopedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Brendan A. Williams
- Department of Orthopedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - John G. Horneff
- Department of Orthopedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
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8
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Eckert MA, Benitez A, Soler ZM, Dubno JR, Schlosser RJ. Gray matter and episodic memory associations with olfaction in middle-aged to older adults. Int Forum Allergy Rhinol 2024; 14:961-971. [PMID: 37897207 DOI: 10.1002/alr.23290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/18/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND Age-related declines in olfaction contribute to low quality of life and appear to occur with declines in cognitive function, including diminished episodic memory. We tested the hypothesis that low gray matter volume within cortical regions that support olfaction and episodic memory can explain age-related differences in olfactory and episodic memory functions. METHODS T1-weighted images, Sniffin' Sticks olfactory measures, and the NIH Toolbox-Cognition Battery were administered to 131 middle-aged to older adults (50-86 years; 66% female). Correlation was used to examine the associations between these measures. A network-based image processing approach was then used to examine the degree to which spatial patterns of gray matter variance were related to the olfactory and cognitive measures. Structural equation modeling was used to characterize the relative specificity of olfactory, cognitive, gray matter, and aging associations. RESULTS Olfactory threshold, discrimination, and identification exhibited small to medium effect size associations with episodic memory performance (rs = 0.27-0.42, ps < 0.002). Gray matter volume within medial temporal and orbitofrontal cortex was also related to olfactory (discrimination and identification) and episodic memory function (rs = 0.21-0.36, ps < 0.019). Age and episodic memory explained the same variance in olfaction that was explained by the medial temporal and orbitofrontal pattern of gray matter volume. CONCLUSIONS The results of this cross-sectional study suggest that identifying mechanisms contributing to differences in medial temporal and orbitofrontal cortex will advance our understanding of co-morbid olfactory and cognitive declines.
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Affiliation(s)
- Mark A Eckert
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Andreana Benitez
- Department of Neurology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Zachary M Soler
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Judy R Dubno
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Rodney J Schlosser
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
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9
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Koller AJ, Glaser O, DeLuca MC, Motz RN, Amason EK, Carbo-Bague I, Mixdorf JC, Guzei IA, Aluicio-Sarduy E, Śmiłowicz D, Barnhart TE, Ramogida CF, Nolan EM, Engle JW, Boros E. "Off-Label Use" of the Siderophore Enterobactin Enables Targeted Imaging of Cancer with Radioactive Ti (IV). Angew Chem Int Ed Engl 2024; 63:e202319578. [PMID: 38442302 DOI: 10.1002/anie.202319578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 03/07/2024]
Abstract
The development of inert, biocompatible chelation methods is required to harness the emerging positron emitting radionuclide 45Ti for radiopharmaceutical applications. Herein, we evaluate the Ti(IV)-coordination chemistry of four catechol-based, hexacoordinate chelators using synthetic, structural, computational, and radiochemical approaches. The siderophore enterobactin (Ent) and its synthetic mimic TREN-CAM readily form mononuclear Ti(IV) species in aqueous solution at neutral pH. Radiolabeling studies reveal that Ent and TREN-CAM form mononuclear complexes with the short-lived, positron-emitting radionuclide 45Ti(IV), and do not transchelate to plasma proteins in vitro and exhibit rapid renal clearance in naïve mice. These features guide efforts to target the 45Ti isotope to prostate cancer tissue through the design, synthesis, and evaluation of Ent-DUPA, a small molecule conjugate composed of a prostate specific membrane antigen (PSMA) targeting peptide and a monofunctionalized Ent scaffold. The [45Ti][Ti(Ent-DUPA)]2- complex forms readily at room temperature. In a tumor xenograft model in mice, selective tumor tissue accumulation (8±5 %, n=5), and low off-target uptake in other organs is observed. Overall, this work demonstrates targeted imaging with 45Ti(IV), provides a foundation for advancing the application of 45Ti in nuclear medicine, and reveals that Ent can be repurposed as a 45Ti-complexing cargo for targeted nuclear imaging applications.
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Affiliation(s)
- Angus J Koller
- Department of Chemistry, Stony Brook University, Stony Brook, New York, 11794, United States
| | - Owen Glaser
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, United States
| | - Molly C DeLuca
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States
| | - Rachel N Motz
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Edith K Amason
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, United States
| | - Imma Carbo-Bague
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
| | - Jason C Mixdorf
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States
| | - Ilia A Guzei
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, United States
| | - Eduardo Aluicio-Sarduy
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States
| | - Dariusz Śmiłowicz
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, United States
| | - Todd E Barnhart
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States
| | - Caterina F Ramogida
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
| | - Elizabeth M Nolan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Jonathan W Engle
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States
| | - Eszter Boros
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, United States
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10
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Zureigat H, Osborne MT, Abohashem S, Mezue K, Gharios C, Grewal S, Cardeiro A, Naddaf N, Civieri G, Abbasi T, Radfar A, Aldosoky W, Seligowski AV, Wasfy MM, Guseh JS, Churchill TW, Rosovsky RP, Fayad Z, Rosenzweig A, Baggish A, Pitman RK, Choi KW, Smoller J, Shin LM, Tawakol A. Effect of Stress-Related Neural Pathways on the Cardiovascular Benefit of Physical Activity. J Am Coll Cardiol 2024; 83:1543-1553. [PMID: 38631773 DOI: 10.1016/j.jacc.2024.02.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/25/2024] [Accepted: 02/15/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND The mechanisms underlying the psychological and cardiovascular disease (CVD) benefits of physical activity (PA) are not fully understood. OBJECTIVES This study tested whether PA: 1) attenuates stress-related neural activity, which is known to potentiate CVD and for its role in anxiety/depression; 2) decreases CVD in part through this neural effect; and 3) has a greater impact on CVD risk among individuals with depression. METHODS Participants from the Mass General Brigham Biobank who completed a PA survey were studied. A subset underwent 18F-fluorodeoxyglucose positron emission tomography/computed tomographic imaging. Stress-related neural activity was measured as the ratio of resting amygdalar-to-cortical activity (AmygAC). CVD events were ascertained from electronic health records. RESULTS A total of 50,359 adults were included (median age 60 years [Q1-Q3: 45-70 years]; 40.1% male). Greater PA was associated with both lower AmygAC (standardized β: -0.245; 95% CI: -0.444 to -0.046; P = 0.016) and CVD events (HR: 0.802; 95% CI: 0.719-0.896; P < 0.001) in multivariable models. AmygAC reductions partially mediated PA's CVD benefit (OR: 0.96; 95% CI: 0.92-0.99; P < 0.05). Moreover, PA's benefit on incident CVD events was greater among those with (vs without) preexisting depression (HR: 0.860; 95% CI: 0.810-0.915; vs HR: 0.929; 95% CI: 0.910-0.949; P interaction = 0.011). Additionally, PA above guideline recommendations further reduced CVD events, but only among those with preexisting depression (P interaction = 0.023). CONCLUSIONS PA appears to reduce CVD risk in part by acting through the brain's stress-related activity; this may explain the novel observation that PA reduces CVD risk to a greater extent among individuals with depression.
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Affiliation(s)
- Hadil Zureigat
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Michael T Osborne
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Shady Abohashem
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Kenechukwu Mezue
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Charbel Gharios
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Simran Grewal
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Alex Cardeiro
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Nicki Naddaf
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Giovanni Civieri
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Taimur Abbasi
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Azar Radfar
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Wesam Aldosoky
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Antonia V Seligowski
- Department of Psychiatry, McLean Hospital, Belmont, Massachusetts, USA, and Harvard Medical School, Boston, Massachusetts, USA
| | - Meagan M Wasfy
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts, USA; Cardiovascular Performance Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - James Sawalla Guseh
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts, USA; Cardiovascular Performance Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Timothy W Churchill
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts, USA; Cardiovascular Performance Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Rachel P Rosovsky
- Division of Hematology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Zahi Fayad
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Anthony Rosenzweig
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts, USA; Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Aaron Baggish
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Cardiovascular Performance Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Roger K Pitman
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Karmel W Choi
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jordan Smoller
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Lisa M Shin
- Department of Psychology, Tufts University, Medford, Massachusetts, USA
| | - Ahmed Tawakol
- Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts, USA.
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11
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R B, N B, A Z, R H, K H, J K. Sinonasal Angiomatous Polyp: A Case Report and Review of Literature. Ear Nose Throat J 2024:1455613241247731. [PMID: 38654494 DOI: 10.1177/01455613241247731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
Sinonasal angiomatous polyp (SAP) is a benign pseudoneoplastic lesion rarely reported in the literature. It may be misdiagnosed as a malignant neoplasm due to its aggressive features of bone erosion clinically or on imaging. We report the case of a 43-year-old woman with a 3 month history of unilateral nasal obstruction with recurrent epistaxis. Nasal endoscopy showed polypoid nasal mass occupying the left nasal cavity. Imaging was suggestive of malignant vascular tumor. The patient underwent surgical excision after embolization. Histopathology concluded to the diagnosis of SAP.
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Affiliation(s)
- Bouatay R
- ENT Department at Fattouma Bourguiba Hospital of Monastir, Monastir, Tunisia
- University of Monastir, Monastir, Tunisia
| | - Bouaziz N
- ENT Department at Fattouma Bourguiba Hospital of Monastir, Monastir, Tunisia
| | - Zrig A
- University of Monastir, Monastir, Tunisia
- Department of Radiology at Fattouma Bourguiba Hospital of Monastir, Monastir, Tunisia
| | - Hadhri R
- University of Monastir, Monastir, Tunisia
- Department of Pathology at Fattouma Bourguiba Hospital of Monastir, Monastir, Tunisia
| | - Harrathi K
- ENT Department at Fattouma Bourguiba Hospital of Monastir, Monastir, Tunisia
- University of Monastir, Monastir, Tunisia
| | - Koubaa J
- ENT Department at Fattouma Bourguiba Hospital of Monastir, Monastir, Tunisia
- University of Monastir, Monastir, Tunisia
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12
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Elkind MSV. How Physical Activity Lowers Cardiovascular Risk: Exercise Can Change Your Mind. J Am Coll Cardiol 2024; 83:1554-1556. [PMID: 38631774 DOI: 10.1016/j.jacc.2024.03.369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 04/19/2024]
Affiliation(s)
- Mitchell S V Elkind
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA; American Heart Association, Dallas, Texas, USA.
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13
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Lahaye MJ, Lambregts DMJ, Aalbers AGJ, Snaebjornsson P, Beets-Tan RGH, Kok NFM. Imaging in the era of risk-adapted treatment in Colon cancer. Br J Radiol 2024:tqae061. [PMID: 38648743 DOI: 10.1093/bjr/tqae061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/14/2024] [Accepted: 03/14/2024] [Indexed: 04/25/2024] Open
Abstract
The treatment landscape for patients with colon cancer is continuously evolving. Risk-adapted treatment strategies, including neoadjuvant chemotherapy and immunotherapy, are slowly finding their way into clinical practice and guidelines. Radiologists are pivotal in guiding clinicians toward the most optimal treatment for each colon cancer patient. This review provides an overview of recent and upcoming advances in the diagnostic management of colon cancer and the radiologist's role in the multidisciplinary approach to treating colon cancer.
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Affiliation(s)
- Max J Lahaye
- The Netherlands Cancer Institute, Department of Radiology, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Doenja M J Lambregts
- The Netherlands Cancer Institute, Department of Radiology, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Arend G J Aalbers
- The Netherlands Cancer Institute, Department of Surgery, Amsterdam, The Netherlands
| | - Petur Snaebjornsson
- The Netherlands Cancer Institute, Department of Pathology, Amsterdam, The Netherlands
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - R G H Beets-Tan
- The Netherlands Cancer Institute, Department of Radiology, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, The Netherlands
- Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Niels F M Kok
- The Netherlands Cancer Institute, Department of Surgery, Amsterdam, The Netherlands
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14
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Crouse JJ, Park SH, Hermens DF, Lagopoulos J, Park M, Shin M, Carpenter JS, Scott EM, Hickie IB. Chronotype and subjective sleep quality predict white matter integrity in young people with emerging mental disorders. Eur J Neurosci 2024. [PMID: 38650167 DOI: 10.1111/ejn.16351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 12/13/2023] [Accepted: 03/18/2024] [Indexed: 04/25/2024]
Abstract
Protecting brain health is a goal of early intervention. We explored whether sleep quality or chronotype could predict white matter (WM) integrity in emerging mental disorders. Young people (N = 364) accessing early-intervention clinics underwent assessments for chronotype, subjective sleep quality, and diffusion tensor imaging. Using machine learning, we examined whether chronotype or sleep quality (alongside diagnostic and demographic factors) could predict four measures of WM integrity: fractional anisotropy (FA), and radial, axial, and mean diffusivities (RD, AD and MD). We prioritised tracts that showed a univariate association with sleep quality or chronotype and considered predictors identified by ≥80% of machine learning (ML) models as 'important'. The most important predictors of WM integrity were demographics (age, sex and education) and diagnosis (depressive and bipolar disorders). Subjective sleep quality only predicted FA in the perihippocampal cingulum tract, whereas chronotype had limited predictive importance for WM integrity. To further examine links with mood disorders, we conducted a subgroup analysis. In youth with depressive and bipolar disorders, chronotype emerged as an important (often top-ranking) feature, predicting FA in the cingulum (cingulate gyrus), AD in the anterior corona radiata and genu of the corpus callosum, and RD in the corona radiata, anterior corona radiata, and genu of corpus callosum. Subjective quality was not important in this subgroup analysis. In summary, chronotype predicted altered WM integrity in the corona radiata and corpus callosum, whereas subjective sleep quality had a less significant role, suggesting that circadian factors may play a more prominent role in WM integrity in emerging mood disorders.
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Affiliation(s)
- Jacob J Crouse
- Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
| | - Shin Ho Park
- Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
| | - Daniel F Hermens
- Thompson Institute, University of the Sunshine Coast, Sunshine Coast, Queensland, Australia
| | - Jim Lagopoulos
- Thompson Institute, University of the Sunshine Coast, Sunshine Coast, Queensland, Australia
| | - Minji Park
- Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
| | - Mirim Shin
- Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
| | - Joanne S Carpenter
- Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
| | - Elizabeth M Scott
- Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
| | - Ian B Hickie
- Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
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15
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Ponzoni M, Alamri R, Peel B, Haller C, Coles J, Vanderlaan RD, Honjo O, Barron DJ, Yoo SJ. Longitudinal Evaluation of Congenital Cardiovascular Surgical Performance and Skills Retention Using Silicone-Molded Heart Models. World J Pediatr Congenit Heart Surg 2024:21501351241237785. [PMID: 38646823 DOI: 10.1177/21501351241237785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Objective: Hands-on surgical training (HOST) for congenital heart surgery (CHS), utilizing silicone-molded models created from 3D-printing of patients' imaging data, was shown to improve surgical skills. However, the impact of repetition and frequency of repetition in retaining skills has not been previously investigated. We aimed to longitudinally evaluate the outcome for HOST on two example procedures of different technical difficulties with repeated attempts over a 15-week period. Methods: Five CHS trainees were prospectively recruited. Repair of coarctation of the aorta (CoA) and arterial switch operation (ASO) were selected as example procedures of relatively low and high technical difficulty. Procedural time and technical performance (using procedure-specific assessment tools by the participant, a peer-reviewer, and the proctor) were measured. Results: Coarctation repair performance scores improved after the first repetition but remained unchanged at the follow-up session. Likewise, CoA procedural time showed an early reduction but then remained stable (mean [standard deviation]: 29[14] vs 25[15] vs 23[9] min at 0, 1, and 4 weeks). Conversely, ASO performance scores improved during the first repetitions, but decreased after a longer time delay (>9 weeks). Arterial switch operation procedural time showed modest improvements across simulations but significantly reduced from the first to the last attempt: 119[20] versus 106[28] min at 0 and 15 weeks, P = .049. Conclusions: Complex procedures require multiple HOST repetitions, without excessive time delay to maintain long-term skills improvement. Conversely, a single session may be planned for simple procedures to achieve satisfactory medium-term results. Importantly, a consistent reduction in procedural times was recorded, supporting increased surgical efficiency.
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Affiliation(s)
- Matteo Ponzoni
- Division of Cardiovascular Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rawan Alamri
- Division of Cardiovascular Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Brandon Peel
- Center for Image-Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Christoph Haller
- Division of Cardiovascular Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - John Coles
- Division of Cardiovascular Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rachel D Vanderlaan
- Division of Cardiovascular Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Osami Honjo
- Division of Cardiovascular Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - David J Barron
- Division of Cardiovascular Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Shi-Joon Yoo
- Center for Image-Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
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16
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Nacier CM, Vutescu ES, Bergen MA, Quinn MS, Albright JA, Cruz AI. Social deprivation index affects time to MRI after knee injury in pediatric patients and is predicted by patient demographics. PHYSICIAN SPORTSMED 2024:1-6. [PMID: 38618689 DOI: 10.1080/00913847.2024.2342235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVES This study aims to characterize the association between the timing of MRI ordering and completion for pediatric knee injuries and Social Deprivation Index (SDI), which is a comprehensive, validated, county-level, measure of socioeconomic variation in health outcomes based upon combining geography, income, education, employment, housing, household characteristics, and access to transportation. METHODS A retrospective chart review was completed of patients 21 years old and younger from our institution with a history of knee sports injury (ligamentous/soft tissue injury, structural abnormality, instability, inflammation) evaluated with MRI between 5/26/2017 and 12/28/2020. Patients were from three states and attended to by physicians associated with an urban academic institution. Patients were assigned SDI scores based on their ZIP code. Excluded from the study were patients with a non-knee related diagnosis (hip, foot, or ankle), patients from ZIP codes with unknown SDI, and non-sports medicine diagnoses (tumor, infection, fracture). RESULTS In a multivariate regression analysis of 355 patients, increased SDI was independently associated with increased time from clinic visit to MRI order (p = 0.044) and from clinic visit to MRI completion (p = 0.047). Each 10-point increase in SDI (0-100) was associated with a delay of 7.2 days on average. SDI itself was found to be associated with a patient's race (p < 0.001), ethnicity (p < 0.001), and insurance category (p < 0.001). CONCLUSION Increased SDI is independently associated with longer time from clinic visit to knee MRI order and longer time from clinic visit to knee MRI completion in our pediatric population. Recognizing potential barriers to orthopedic care can help create the change necessary to provide the best possible care for all individual patients.
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Affiliation(s)
| | - Emil Stefan Vutescu
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Michael A Bergen
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Matthew S Quinn
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - J Alex Albright
- Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Aristides I Cruz
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
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17
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Kircher BK, McCown MA, Scully DM, Behringer RR, Larina IV. Structural analysis of the female reptile reproductive system by micro-computed tomography and optical coherence tomography†. Biol Reprod 2024:ioae039. [PMID: 38641547 DOI: 10.1093/biolre/ioae039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 04/21/2024] Open
Abstract
Volumetric data provide unprecedented structural insight to the reproductive tract and add vital anatomical context to the relationships between organs. The morphology of the female reproductive tract in non-avian reptiles varies between species, corresponding to a broad range of reproductive modes and providing valuable insight to comparative investigations of reproductive anatomy. However, reproductive studies in reptilian models, such as the brown anole studied here, have historically relied on histological methods to understand the anatomy. While these methods are highly effective for characterizing the cell types present in each organ, histological methods lose the 3D relationships between images and leave the architecture of the organ system poorly understood. We present the first comprehensive volumetric analyses of the female brown anole reproductive tract using two non-invasive, non-destructive imaging modalities: micro-computed tomography (microCT) and optical coherence tomography (OCT). Both are specialized imaging technologies that facilitate high-throughput imaging and preserve three-dimensional information. This study represents the first time that microCT has been used to study all reproductive organs in this species and the very first time that OCT has been applied to this species. We show how the non-destructive volumetric imaging provided by each modality reveals anatomical context including orientation and relationships between reproductive organs of the anole lizard. In addition to broad patterns of morphology, both imaging modalities provide the high resolution necessary to capture details and key anatomical features of each organ. We demonstrate that classic histological features can be appreciated within whole-organ architecture in volumetric imaging using microCT and OCT, providing the complementary information necessary to understand the relationships between tissues and organs in the reproductive system. This side-by-side imaging analysis using microCT and OCT allows us to evaluate the specific advantages and limitations of these two methods for the female reptile reproductive system.
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Affiliation(s)
- Bonnie K Kircher
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX USA
| | - Michaela A McCown
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - Deirdre M Scully
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - Richard R Behringer
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX USA
| | - Irina V Larina
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
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18
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Xue L, Jie CVML, Desrayaud S, Auberson YP. Developing Low Molecular Weight PET and SPECT Imaging Agents. ChemMedChem 2024:e202400094. [PMID: 38634545 DOI: 10.1002/cmdc.202400094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/17/2024] [Accepted: 04/17/2024] [Indexed: 04/19/2024]
Abstract
Imaging agents for positron emission tomography (PET) and single-photon emission computerized tomography (SPECT) have shown their utility in many situations, answering clinical questions related to drug development and medical considerations. The discovery and development of imaging agents follow a well-understood process, with variations related to available starting points and to the envisaged imaging application. This article describes the general development path leading from the expression of an imaging need and project initiation to a clinically usable imaging agent. The definition of the project rationale, the design and optimization of early leads, and the assessment of the imaging potential of an imaging agent candidate are followed by preclinical and clinical development activities that differ from those required for therapeutic agents. These include radiolabeling with a positron emitter and first-in-human clinical studies, to rapidly evaluate the ability of a new imaging agent to address the questions it was designed to answer.
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Affiliation(s)
- Lian Xue
- Monash Institute of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, 381 Royal Parade, 3052, Parkville, AUSTRALIA
| | | | - Sandrine Desrayaud
- Novartis Biomedical Research, In vivo preclinical PK/ADME, Novartis Campus, WSJ-352/6/73.01, 4056, Basel, SWITZERLAND
| | - Yves P Auberson
- Novartis Institutes for BioMedical Research, Global Discovery Chemistry, WKL-136.6.82, 4002, Basel, SWITZERLAND
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19
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Jantarug K, Tripathi V, Morin B, Iizuka A, Kuehl R, Morgenstern M, Clauss M, Khanna N, Bumann D, Rivera-Fuentes P. A Far-Red Fluorescent Probe to Visualize Gram-Positive Bacteria in Patient Samples. ACS Infect Dis 2024. [PMID: 38632685 DOI: 10.1021/acsinfecdis.4c00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Gram-positive bacteria, in particular Staphylococcus aureus (S. aureus), are the leading bacterial cause of death in high-income countries and can cause invasive infections at various body sites. These infections are associated with prolonged hospital stays, a large economic burden, considerable treatment failure, and high mortality rates. So far, there is only limited knowledge about the specific locations where S. aureus resides in the human body during various infections. Hence, the visualization of S. aureus holds significant importance in microbiological research. Herein, we report the development and validation of a far-red fluorescent probe to detect Gram-positive bacteria, with a focus on staphylococci, in human biopsies from deep-seated infections. This probe displays strong fluorescence and low background in human tissues, outperforming current tools for S. aureus detection. Several applications are demonstrated, including fixed- and live-cell imaging, flow cytometry, and super-resolution bacterial imaging.
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Affiliation(s)
| | | | - Benedict Morin
- Department of Biomedicine, University of Basel, Basel 4031, Switzerland
| | - Aya Iizuka
- Department of Biomedicine, University of Basel, Basel 4031, Switzerland
| | - Richard Kuehl
- Department of Biomedicine, University of Basel, Basel 4031, Switzerland
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel 4031, Switzerland
- Center for Musculoskeletal Infections (ZMSI), Department for Orthopaedics and Trauma Surgery, University Hospital Basel, Basel 4031, Switzerland
| | - Mario Morgenstern
- Center for Musculoskeletal Infections (ZMSI), Department for Orthopaedics and Trauma Surgery, University Hospital Basel, Basel 4031, Switzerland
| | - Martin Clauss
- Center for Musculoskeletal Infections (ZMSI), Department for Orthopaedics and Trauma Surgery, University Hospital Basel, Basel 4031, Switzerland
| | - Nina Khanna
- Department of Biomedicine, University of Basel, Basel 4031, Switzerland
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel 4031, Switzerland
- Department of Clinical Research, University Hospital of Basel, Basel 4031, Switzerland
| | - Dirk Bumann
- Biozentrum, University of Basel, Basel 4056, Switzerland
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20
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Zirem Y, Ledoux L, Roussel L, Maurage CA, Tirilly P, Le Rhun É, Meresse B, Yagnik G, Lim MJ, Rothschild KJ, Duhamel M, Salzet M, Fournier I. Real-time glioblastoma tumor microenvironment assessment by SpiderMass for improved patient management. Cell Rep Med 2024; 5:101482. [PMID: 38552622 PMCID: PMC11031375 DOI: 10.1016/j.xcrm.2024.101482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/15/2024] [Accepted: 03/01/2024] [Indexed: 04/19/2024]
Abstract
Glioblastoma is a highly heterogeneous and infiltrative form of brain cancer associated with a poor outcome and limited therapeutic effectiveness. The extent of the surgery is related to survival. Reaching an accurate diagnosis and prognosis assessment by the time of the initial surgery is therefore paramount in the management of glioblastoma. To this end, we are studying the performance of SpiderMass, an ambient ionization mass spectrometry technology that can be used in vivo without invasiveness, coupled to our recently established artificial intelligence pipeline. We demonstrate that we can both stratify isocitrate dehydrogenase (IDH)-wild-type glioblastoma patients into molecular sub-groups and achieve an accurate diagnosis with over 90% accuracy after cross-validation. Interestingly, the developed method offers the same accuracy for prognosis. In addition, we are testing the potential of an immunoscoring strategy based on SpiderMass fingerprints, showing the association between prognosis and immune cell infiltration, to predict patient outcome.
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Affiliation(s)
- Yanis Zirem
- Université de Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, 59000 Lille, France
| | - Léa Ledoux
- Université de Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, 59000 Lille, France
| | - Lucas Roussel
- Université de Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, 59000 Lille, France
| | | | - Pierre Tirilly
- Université de Lille, CNRS, Centrale Lille, UMR 9189 CRIStAL, 59000 Lille, France
| | - Émilie Le Rhun
- Université de Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, 59000 Lille, France; Departments of Neurosurgery and Neurology, Clinical Neuroscience Center, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Bertrand Meresse
- Université de Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000 Lille, France
| | | | | | - Kenneth J Rothschild
- AmberGen, Inc., Billerica, MA, USA; Department of Physics and Photonics Center, Boston University, Boston, MA, USA
| | - Marie Duhamel
- Université de Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, 59000 Lille, France
| | - Michel Salzet
- Université de Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, 59000 Lille, France; Institut Universitaire de France (IUF), Paris, France.
| | - Isabelle Fournier
- Université de Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, 59000 Lille, France; Institut Universitaire de France (IUF), Paris, France.
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21
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Lee M, Moon HC, Jeong H, Kim DW, Park HY, Shin Y. Optogenetic control of mRNA condensation reveals an intimate link between condensate material properties and functions. Nat Commun 2024; 15:3216. [PMID: 38622120 PMCID: PMC11018775 DOI: 10.1038/s41467-024-47442-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/25/2024] [Indexed: 04/17/2024] Open
Abstract
Biomolecular condensates, often assembled through phase transition mechanisms, play key roles in organizing diverse cellular activities. The material properties of condensates, ranging from liquid droplets to solid-like glasses or gels, are key features impacting the way resident components associate with one another. However, it remains unclear whether and how different material properties would influence specific cellular functions of condensates. Here, we combine optogenetic control of phase separation with single-molecule mRNA imaging to study relations between phase behaviors and functional performance of condensates. Using light-activated condensation, we show that sequestering target mRNAs into condensates causes translation inhibition. Orthogonal mRNA imaging reveals highly transient nature of interactions between individual mRNAs and condensates. Tuning condensate composition and material property towards more solid-like states leads to stronger translational repression, concomitant with a decrease in molecular mobility. We further demonstrate that β-actin mRNA sequestration in neurons suppresses spine enlargement during chemically induced long-term potentiation. Our work highlights how the material properties of condensates can modulate functions, a mechanism that may play a role in fine-tuning the output of condensate-driven cellular activities.
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Affiliation(s)
- Min Lee
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea
| | - Hyungseok C Moon
- Department of Physics and Astronomy, Seoul National University, Seoul, Korea
| | - Hyeonjeong Jeong
- Department of Physics and Astronomy, Seoul National University, Seoul, Korea
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA
| | - Dong Wook Kim
- Department of Physics and Astronomy, Seoul National University, Seoul, Korea
| | - Hye Yoon Park
- Department of Physics and Astronomy, Seoul National University, Seoul, Korea.
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA.
| | - Yongdae Shin
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea.
- Department of Mechanical Engineering, Seoul National University, Seoul, Korea.
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22
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Gong X, Li R, Zhang J, Zhang P, Jiang Z, Hu L, Liu X, Wang Y, Wang F. Scaling up of a Self-Confined Catalytic Hybridization Circuit for Robust microRNA Imaging. Adv Sci (Weinh) 2024:e2400517. [PMID: 38613838 DOI: 10.1002/advs.202400517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/27/2024] [Indexed: 04/15/2024]
Abstract
The precise regulation of cellular behaviors within a confined, crowded intracellular environment is highly amenable in diagnostics and therapeutics. While synthetic circuitry system through a concatenated chemical reaction network has rarely been reported to mimic dynamic self-assembly system. Herein, a catalytic self-defined circuit (CSC) for the hierarchically concatenated assembly of DNA domino nanostructures is engineered. By incorporating pre-sealed symmetrical fragments into the preying hairpin reactants, the CSC system allows the hierarchical DNA self-assembly via a microRNA (miRNA)-powered self-sorting catalytic hybridization reaction. With minimal strand complexity, this self-sustainable CSC system streamlined the circuit component and achieved localization-intensified cascaded signal amplification. Profiting from the self-adaptively concatenated hybridization reaction, a reliable and robust method has been achieved for discriminating carcinoma tissues from the corresponding para-carcinoma tissues. The CSC-sustained self-assembly strategy provides a comprehensive and smart toolbox for organizing various hierarchical DNA nanostructures, which may facilitate more insights for clinical diagnosis and therapeutic assessment.
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Affiliation(s)
- Xue Gong
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education), Chongqing Key Laboratory of Green Catalysis Materials and Technology, College of Chemistry, Chongqing Normal University, Chongqing, 401331, P. R. China
| | - Ruomeng Li
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Jiajia Zhang
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education), Chongqing Key Laboratory of Green Catalysis Materials and Technology, College of Chemistry, Chongqing Normal University, Chongqing, 401331, P. R. China
| | - Pu Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Zhongwei Jiang
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education), Chongqing Key Laboratory of Green Catalysis Materials and Technology, College of Chemistry, Chongqing Normal University, Chongqing, 401331, P. R. China
| | - Lianzhe Hu
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education), Chongqing Key Laboratory of Green Catalysis Materials and Technology, College of Chemistry, Chongqing Normal University, Chongqing, 401331, P. R. China
| | - Xiaoqing Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Yi Wang
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education), Chongqing Key Laboratory of Green Catalysis Materials and Technology, College of Chemistry, Chongqing Normal University, Chongqing, 401331, P. R. China
| | - Fuan Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
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23
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Kim K, Hwang H, Bae S, Kim SM, Han DH. The Effectiveness of a Digital App for Reduction of Clinical Symptoms in Individuals With Panic Disorder: Randomized Controlled Trial. J Med Internet Res 2024; 26:e51428. [PMID: 38608270 DOI: 10.2196/51428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/11/2023] [Accepted: 03/08/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Panic disorder is a common and important disease in clinical practice that decreases individual productivity and increases health care use. Treatments comprise medication and cognitive behavioral therapy. However, adverse medication effects and poor treatment compliance mean new therapeutic models are needed. OBJECTIVE We hypothesized that digital therapy for panic disorder may improve panic disorder symptoms and that treatment response would be associated with brain activity changes assessed with functional near-infrared spectroscopy (fNIRS). METHODS Individuals (n=50) with a history of panic attacks were recruited. Symptoms were assessed before and after the use of an app for panic disorder, which in this study was a smartphone-based app for treating the clinical symptoms of panic disorder, panic symptoms, depressive symptoms, and anxiety. The hemodynamics in the frontal cortex during the resting state were measured via fNIRS. The app had 4 parts: diary, education, quest, and serious games. The study trial was approved by the institutional review board of Chung-Ang University Hospital (1041078-202112-HR-349-01) and written informed consent was obtained from all participants. RESULTS The number of participants with improved panic symptoms in the app use group (20/25, 80%) was greater than that in the control group (6/21, 29%; χ21=12.3; P=.005). During treatment, the improvement in the Panic Disorder Severity Scale (PDSS) score in the app use group was greater than that in the control group (F1,44=7.03; P=.01). In the app use group, the total PDSS score declined by 42.5% (mean score 14.3, SD 6.5 at baseline and mean score 7.2, SD 3.6 after the intervention), whereas the PDSS score declined by 14.6% in the control group (mean score 12.4, SD 5.2 at baseline and mean score 9.8, SD 7.9 after the intervention). There were no significant differences in accumulated oxygenated hemoglobin (accHbO2) at baseline between the app use and control groups. During treatment, the reduction in accHbO2 in the right ventrolateral prefrontal cortex (VLPFC; F1,44=8.22; P=.006) and the right orbitofrontal cortex (OFC; F1,44=8.88; P=.005) was greater in the app use than the control group. CONCLUSIONS Apps for panic disorder should effectively reduce symptoms and VLPFC and OFC brain activity in patients with panic disorder. The improvement of panic disorder symptoms was positively correlated with decreased VLPFC and OFC brain activity in the resting state. TRIAL REGISTRATION Clinical Research Information Service KCT0007280; https://cris.nih.go.kr/cris/search/detailSearch.do?seq=21448.
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Affiliation(s)
- KunJung Kim
- Chung Ang University Hospital, Seoul, Republic of Korea
| | | | - Sujin Bae
- Chung Ang University Hospital, Seoul, Republic of Korea
| | - Sun Mi Kim
- Chung Ang University Hospital, Seoul, Republic of Korea
| | - Doug Hyun Han
- Chung Ang University Hospital, Seoul, Republic of Korea
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24
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Zhang H, Prado Y, Alchaar R, Lehouelleur H, Cavallo M, Dang TH, Khalili A, Bossavit E, Dabard C, Ledos N, Silly MG, Madouri A, Fournier D, Utterback JK, Pierucci D, Parahyba V, Potet P, Darson D, Ithurria S, Bartłomiej Szafran, Diroll BT, Climente JI, Lhuillier E. Infrared Imaging Using Thermally Stable HgTe/CdS Nanocrystals. Nano Lett 2024. [PMID: 38608158 DOI: 10.1021/acs.nanolett.4c00907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Transferring nanocrystals (NCs) from the laboratory environment toward practical applications has raised new challenges. HgTe appears as the most spectrally tunable infrared colloidal platform. Its low-temperature synthesis reduces the growth energy cost yet also favors sintering. Once coupled to a read-out circuit, the Joule effect aggregates the particles, leading to a poorly defined optical edge and large dark current. Here, we demonstrate that CdS shells bring the expected thermal stability (no redshift upon annealing, reduced tendency to form amalgams, and preservation of photoconduction after an atomic layer deposition process). The electronic structure of these confined particles is unveiled using k.p self-consistent simulations showing a significant exciton binding energy of ∼200 meV. After shelling, the material displays a p-type behavior that favors the generation of photoconductive gain. The latter is then used to increase the external quantum efficiency of an infrared imager, which now reaches 40% while presenting long-term stability.
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Affiliation(s)
- Huichen Zhang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Yoann Prado
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Rodolphe Alchaar
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Henri Lehouelleur
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université, CNRS, Paris 75005, France
| | - Mariarosa Cavallo
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Tung Huu Dang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Sorbonne Paris Cité, Paris 75005, France
| | - Adrien Khalili
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Erwan Bossavit
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
- Synchrotron SOLEIL, Saint-Aubin 91190, France
| | - Corentin Dabard
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université, CNRS, Paris 75005, France
| | - Nicolas Ledos
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | | | - Ali Madouri
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, C2N, Palaiseau 91120, France
| | - Daniele Fournier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - James K Utterback
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Debora Pierucci
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Victor Parahyba
- New Imaging Technologies SA, Verrières le Buisson 91370, France
| | - Pierre Potet
- New Imaging Technologies SA, Verrières le Buisson 91370, France
| | - David Darson
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Sorbonne Paris Cité, Paris 75005, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université, CNRS, Paris 75005, France
| | - Bartłomiej Szafran
- Faculty of Physics and Applied Computer Science, AGH University, Kraków PL-30-059, Poland
| | - Benjamin T Diroll
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Juan I Climente
- Departament de Quimica Fisica i Analitica, Universitat Jaume I, Castello de la Plana E-12080, Spain
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
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25
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Hendawy SHM, Alzan HF, Abdel-Ghany HSM, Suarez CE, Kamel G. Biochemical analysis of Hyalomma dromedarii salivary glands and gut tissues using SR-FTIR micro-spectroscopy. Sci Rep 2024; 14:8515. [PMID: 38609442 PMCID: PMC11014997 DOI: 10.1038/s41598-024-59165-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/08/2024] [Indexed: 04/14/2024] Open
Abstract
Ticks are obligatory voracious blood feeders infesting diverse vertebrate hosts, that have a crucial role in the transmission of diverse pathogens that threaten human and animal health. The continuous emergence of tick-borne diseases due to combined worldwide climatic changes, human activities, and acaricide-resistant tick strains, necessitates the development of novel ameliorative tick control strategies such as vaccines. The synchrotron-based Fourier transform infrared micro-spectroscopy (SR-FTIR) is a bioanalytical microprobe capable of exploring the molecular chemistry within microstructures at a cellular or subcellular level and is considered as a nondestructive analytical approach for biological specimens. In this study, SR-FTIR analysis was able to explore a qualitative and semi-quantitative biochemical composition of gut and salivary glands of Hyalomma dromedarii (H. dromedarii) tick detecting differences in the biochemical composition of both tissues. A notable observation regarding Amide I secondary structure protein profile was the higher ratio of aggregated strands in salivary gland and beta turns in gut tissues. Regarding the lipid profile, there was a higher intensity of lipid regions in gut tissue when compared to salivary glands. This detailed information on the biochemical compositions of tick tissues could assist in selecting vaccine and/or control candidates. Altogether, these findings confirmed SR-FTIR spectroscopy as a tool for detecting differences in the biochemical composition of H. dromedarii salivary glands and gut tissues. This approach could potentially be extended to the analysis of other ticks that are vectors of important diseases such as babesiosis and theileriosis.
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Affiliation(s)
- Seham H M Hendawy
- Parasitology and Animal Diseases Department, Veterinary Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt.
- Tick and Tick-Borne Diseases Research Unit, Veterinary Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt.
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164-7040, USA.
| | - Heba F Alzan
- Parasitology and Animal Diseases Department, Veterinary Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
- Tick and Tick-Borne Diseases Research Unit, Veterinary Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164-7040, USA
| | - Hoda S M Abdel-Ghany
- Parasitology and Animal Diseases Department, Veterinary Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
- Tick and Tick-Borne Diseases Research Unit, Veterinary Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Giza, 12622, Egypt
| | - Carlos E Suarez
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164-7040, USA
- Animal Disease Research Unit, United States Department of Agricultural-Agricultural Research Service, Pullman, WA, USA
| | - Gihan Kamel
- SESAME Synchrotron (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan, 19252, Jordan.
- Department of Physics, Faculty of Science, Helwan University, Cairo, Egypt.
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26
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Ebright B, Duro MV, Chen K, Louie S, Yassine HN. Effects of APOE4 on omega-3 brain metabolism across the lifespan. Trends Endocrinol Metab 2024:S1043-2760(24)00065-1. [PMID: 38609814 DOI: 10.1016/j.tem.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 04/14/2024]
Abstract
Omega-3 (n-3) polyunsaturated fatty acids (PUFAs), such as docosahexaenoic acid (DHA), have important roles in human nutrition and brain health by promoting neuronal functions, maintaining inflammatory homeostasis, and providing structural integrity. As Alzheimer's disease (AD) pathology progresses, DHA metabolism in the brain becomes dysregulated, the timing and extent of which may be influenced by the apolipoprotein E ε4 (APOE4) allele. Here, we discuss how maintaining adequate DHA intake early in life may slow the progression to AD dementia in cognitively normal individuals with APOE4, how recent advances in DHA brain imaging could offer insights leading to more personalized preventive strategies, and how alternative strategies targeting PUFA metabolism pathways may be more effective in mitigating disease progression in patients with existing AD dementia.
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Affiliation(s)
- Brandon Ebright
- Department of Clinical Pharmacy, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Marlon V Duro
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Kai Chen
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Stan Louie
- Department of Clinical Pharmacy, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Hussein N Yassine
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
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27
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Varney ET, Lirette S, Katzmarzyk PT, Greenway F, Howard CM. Computed Tomography and Dual-Energy X-Ray Asorptiometry body composition parameter harmonisation to universalise adipose tissue measurements in a population-based cross-sectional study. Clin Obes 2024:e12660. [PMID: 38602005 DOI: 10.1111/cob.12660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 03/26/2024] [Indexed: 04/12/2024]
Abstract
To harmonise computed tomography (CT) and dual-energy x-ray absorptiometry (DXA) body composition measurements allowing easy conversion in longitudinal assessments and across cohorts to assess cardiometabolic risk and disease. Retrospective cross-sectional observational study from 1996 to 2008 included participants in the Pennington Center Longitudinal Study (PCLS) (N = 1967; 571 African American/1396 White). Anthropometrics, whole-body DXA and abdominal CT images were obtained. Multi-layer segmentation techniques (Analyze; Rochester, MN) quantified visceral adipose tissue (VAT). Clinical biomarkers were obtained from routine blood samples. Linear models were used to predict CT-VAT from DXA-VAT and examine the effects of traditional biomarkers on cross-sectional-VAT. Predicted CT-VAT was highly associated with measured CT-VAT using ordinary least square linear regression analysis and random forest models (R2 = 0.84; 0.94, respectively, p < .0001). Model stratification effects showed low variability between races and sexes. Overall, associations between measured CT-VAT and DXA-predicted CT-VAT were good (R2 > 0.7) or excellent (R2 > 0.8) and improved for all stratification groups except African American men using random forest models. The clinical effects on measured CT-VAT and DXA-VAT showed no significant clinical difference in the measured adipose tissue areas (mean difference = 0.22 cm2). Random forest modelling seamlessly predicts CT-VAT from measured DXA-VAT to a degree of accuracy that falls within the bounds of universally accepted standard error.
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Affiliation(s)
- Elliot T Varney
- Department of Radiology, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Seth Lirette
- Department of Radiology, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Peter T Katzmarzyk
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | - Frank Greenway
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | - Candace M Howard
- Department of Radiology, University of Mississippi Medical Center, Jackson, Mississippi, USA
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28
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Cuozzo F, Viloria K, Shilleh AH, Nasteska D, Frazer-Morris C, Tong J, Jiao Z, Boufersaoui A, Marzullo B, Rosoff DB, Smith HR, Bonner C, Kerr-Conte J, Pattou F, Nano R, Piemonti L, Johnson PRV, Spiers R, Roberts J, Lavery GG, Clark A, Ceresa CDL, Ray DW, Hodson L, Davies AP, Rutter GA, Oshima M, Scharfmann R, Merrins MJ, Akerman I, Tennant DA, Ludwig C, Hodson DJ. LDHB contributes to the regulation of lactate levels and basal insulin secretion in human pancreatic β cells. Cell Rep 2024; 43:114047. [PMID: 38607916 DOI: 10.1016/j.celrep.2024.114047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 02/19/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Using 13C6 glucose labeling coupled to gas chromatography-mass spectrometry and 2D 1H-13C heteronuclear single quantum coherence NMR spectroscopy, we have obtained a comparative high-resolution map of glucose fate underpinning β cell function. In both mouse and human islets, the contribution of glucose to the tricarboxylic acid (TCA) cycle is similar. Pyruvate fueling of the TCA cycle is primarily mediated by the activity of pyruvate dehydrogenase, with lower flux through pyruvate carboxylase. While the conversion of pyruvate to lactate by lactate dehydrogenase (LDH) can be detected in islets of both species, lactate accumulation is 6-fold higher in human islets. Human islets express LDH, with low-moderate LDHA expression and β cell-specific LDHB expression. LDHB inhibition amplifies LDHA-dependent lactate generation in mouse and human β cells and increases basal insulin release. Lastly, cis-instrument Mendelian randomization shows that low LDHB expression levels correlate with elevated fasting insulin in humans. Thus, LDHB limits lactate generation in β cells to maintain appropriate insulin release.
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Affiliation(s)
- Federica Cuozzo
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Katrina Viloria
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK; Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Ali H Shilleh
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Daniela Nasteska
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK; Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Charlotte Frazer-Morris
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Jason Tong
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Zicong Jiao
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK; Geneplus-Beijing, Changping District, Beijing 102206, China
| | - Adam Boufersaoui
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Bryan Marzullo
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Daniel B Rosoff
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK; Oxford Kavli Centre for Nanoscience Discovery, University of Oxford, Oxford, UK
| | - Hannah R Smith
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Caroline Bonner
- University of Lille, Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de Lille (CHU Lille), Institute Pasteur Lille, U1190 -European Genomic Institute for Diabetes (EGID), F59000 Lille, France
| | - Julie Kerr-Conte
- University of Lille, Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de Lille (CHU Lille), Institute Pasteur Lille, U1190 -European Genomic Institute for Diabetes (EGID), F59000 Lille, France
| | - Francois Pattou
- University of Lille, Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de Lille (CHU Lille), Institute Pasteur Lille, U1190 -European Genomic Institute for Diabetes (EGID), F59000 Lille, France
| | - Rita Nano
- San Raffaele Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Lorenzo Piemonti
- San Raffaele Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Paul R V Johnson
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Rebecca Spiers
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Jennie Roberts
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Gareth G Lavery
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK; Centre for Systems Health and Integrated Metabolic Research (SHiMR), Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Anne Clark
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Carlo D L Ceresa
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - David W Ray
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK; Oxford Kavli Centre for Nanoscience Discovery, University of Oxford, Oxford, UK
| | - Leanne Hodson
- Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Amy P Davies
- Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Guy A Rutter
- Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; CHUM Research Centre and Faculty of Medicine, University of Montreal, Montreal, QC, Canada; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Masaya Oshima
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR 8104, 75014 Paris, France
| | - Raphaël Scharfmann
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR 8104, 75014 Paris, France
| | - Matthew J Merrins
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Wisconsin-Madison, Madison, WI 53705, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, USA
| | - Ildem Akerman
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Daniel A Tennant
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.
| | - Christian Ludwig
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.
| | - David J Hodson
- Institute of Metabolism and Systems Research (IMSR) and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK; Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.
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Bentley-Abbot C, Heslop R, Pirillo C, Chandrasegaran P, McConnell G, Roberts E, Hutchinson E, MacLeod A. An easy to use tool for the analysis of subcellular mRNA transcript colocalisation in smFISH data. Sci Rep 2024; 14:8348. [PMID: 38594373 PMCID: PMC11004122 DOI: 10.1038/s41598-024-58641-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 04/01/2024] [Indexed: 04/11/2024] Open
Abstract
Single molecule fluorescence in situ hybridisation (smFISH) has become a valuable tool to investigate the mRNA expression of single cells. However, it requires a considerable amount of programming expertise to use currently available open-source analytical software packages to extract and analyse quantitative data about transcript expression. Here, we present FISHtoFigure, a new software tool developed specifically for the analysis of mRNA abundance and co-expression in QuPath-quantified, multi-labelled smFISH data. FISHtoFigure facilitates the automated spatial analysis of transcripts of interest, allowing users to analyse populations of cells positive for specific combinations of mRNA targets without the need for computational image analysis expertise. As a proof of concept and to demonstrate the capabilities of this new research tool, we have validated FISHtoFigure in multiple biological systems. We used FISHtoFigure to identify an upregulation in the expression of Cd4 by T-cells in the spleens of mice infected with influenza A virus, before analysing more complex data showing crosstalk between microglia and regulatory B-cells in the brains of mice infected with Trypanosoma brucei brucei. These analyses demonstrate the ease of analysing cell expression profiles using FISHtoFigure and the value of this new tool in the field of smFISH data analysis.
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Affiliation(s)
- Calum Bentley-Abbot
- Wellcome Centre for Integrative Parasitology (WCIP), University of Glasgow, Glasgow, UK.
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
- MRC-University of Glasgow Centre for Virus Research, University of Glasgow, Glasgow, UK.
| | - Rhiannon Heslop
- Wellcome Centre for Integrative Parasitology (WCIP), University of Glasgow, Glasgow, UK
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | | | - Praveena Chandrasegaran
- Wellcome Centre for Integrative Parasitology (WCIP), University of Glasgow, Glasgow, UK
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Gail McConnell
- Department of Physics, University of Strathclyde, Glasgow, UK
| | - Ed Roberts
- Beatson Institute for Cancer Research, Glasgow, UK
| | - Edward Hutchinson
- MRC-University of Glasgow Centre for Virus Research, University of Glasgow, Glasgow, UK
| | - Annette MacLeod
- Wellcome Centre for Integrative Parasitology (WCIP), University of Glasgow, Glasgow, UK
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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Ortmann BM, Taylor CT, Rocha S. Hypoxia research, where to now? Trends Biochem Sci 2024:S0968-0004(24)00074-4. [PMID: 38599898 DOI: 10.1016/j.tibs.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/01/2024] [Accepted: 03/18/2024] [Indexed: 04/12/2024]
Abstract
Investigating how cells and organisms sense and respond to O2 levels is essential to our understanding of physiology and pathology. This field has advanced considerably since the discovery of the major transcription factor family, hypoxia-inducible factor (HIF), and the enzymes that control its levels: prolyl hydroxylases (PHDs). However, with its expansion, new complexities have emerged. Herein we highlight three main areas where, in our opinion, the research community could direct some of their attention. These include non-transcriptional roles of HIFs, specificity and O2 sensitivity of 2-oxoglutarate-dependent dioxygenases (2-OGDDs), and new tools and methods to detect O2 concentrations in cells and organs. A greater understanding of these areas would answer big questions and help drive our knowledge of cellular responses to hypoxia forward.
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Affiliation(s)
- Brian M Ortmann
- Wolfson Childhood Cancer Research Centre, Newcastle University, Newcastle upon Tyne, UK.
| | - Cormac T Taylor
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland.
| | - Sonia Rocha
- Institute of Systems Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.
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Hirosawa T, Harada Y, Tokumasu K, Ito T, Suzuki T, Shimizu T. Evaluating ChatGPT-4's Diagnostic Accuracy: Impact of Visual Data Integration. JMIR Med Inform 2024; 12:e55627. [PMID: 38592758 DOI: 10.2196/55627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/14/2024] [Accepted: 03/13/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND In the evolving field of health care, multimodal generative artificial intelligence (AI) systems, such as ChatGPT-4 with vision (ChatGPT-4V), represent a significant advancement, as they integrate visual data with text data. This integration has the potential to revolutionize clinical diagnostics by offering more comprehensive analysis capabilities. However, the impact on diagnostic accuracy of using image data to augment ChatGPT-4 remains unclear. OBJECTIVE This study aims to assess the impact of adding image data on ChatGPT-4's diagnostic accuracy and provide insights into how image data integration can enhance the accuracy of multimodal AI in medical diagnostics. Specifically, this study endeavored to compare the diagnostic accuracy between ChatGPT-4V, which processed both text and image data, and its counterpart, ChatGPT-4, which only uses text data. METHODS We identified a total of 557 case reports published in the American Journal of Case Reports from January 2022 to March 2023. After excluding cases that were nondiagnostic, pediatric, and lacking image data, we included 363 case descriptions with their final diagnoses and associated images. We compared the diagnostic accuracy of ChatGPT-4V and ChatGPT-4 without vision based on their ability to include the final diagnoses within differential diagnosis lists. Two independent physicians evaluated their accuracy, with a third resolving any discrepancies, ensuring a rigorous and objective analysis. RESULTS The integration of image data into ChatGPT-4V did not significantly enhance diagnostic accuracy, showing that final diagnoses were included in the top 10 differential diagnosis lists at a rate of 85.1% (n=309), comparable to the rate of 87.9% (n=319) for the text-only version (P=.33). Notably, ChatGPT-4V's performance in correctly identifying the top diagnosis was inferior, at 44.4% (n=161), compared with 55.9% (n=203) for the text-only version (P=.002, χ2 test). Additionally, ChatGPT-4's self-reports showed that image data accounted for 30% of the weight in developing the differential diagnosis lists in more than half of cases. CONCLUSIONS Our findings reveal that currently, ChatGPT-4V predominantly relies on textual data, limiting its ability to fully use the diagnostic potential of visual information. This study underscores the need for further development of multimodal generative AI systems to effectively integrate and use clinical image data. Enhancing the diagnostic performance of such AI systems through improved multimodal data integration could significantly benefit patient care by providing more accurate and comprehensive diagnostic insights. Future research should focus on overcoming these limitations, paving the way for the practical application of advanced AI in medicine.
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Affiliation(s)
- Takanobu Hirosawa
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University, Shimotsuga, Japan
| | - Yukinori Harada
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University, Shimotsuga, Japan
| | - Kazuki Tokumasu
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | - Tomoharu Suzuki
- Department of Hospital Medicine, Urasoe General Hospital, Okinawa, Japan
| | - Taro Shimizu
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University, Shimotsuga, Japan
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Gungor Aydin A, Conkur ES, Adiguzel E. Compact organ-tissue electrophoresis system (CORES). J Med Eng Technol 2024:1-5. [PMID: 38588474 DOI: 10.1080/03091902.2024.2336497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 03/24/2024] [Indexed: 04/10/2024]
Abstract
Electrophoretic tissue clearing has been a commonly used laboratory method since the early twentieth century. Infrastructure for standard procedures has yet to be formed. In particular, control of the heat produced by electrophoresis, the voltage applied to the electrodes, the resistance, and the speed of liquid circulation create difficulty for researchers. We aimed to develop a compact organ electrophoresis system that enables the researcher to have easy, rapid, and inexpensive working opportunities. The system includes an electronic control unit, a liquid tank, a temperature control unit, and an electrophoresis chamber. The control unit software can keep the system stable by using information on temperature and circulation rate received through the sensors using the feedback principle. Corrosion and particle collection are reduced to a minimum as platinum wires are used for electrophoresis electrodes. A temperature control unit can heat and cool via a liquid tank base. The CORES is an all-in-one, easy-to-use solution for electrophoretic tissue clearing. It assures efficient, rapid, and consistent tissue clearing. The system was stable with 72 h of continuous operation. Patent applications and trial version studies for introducing the system to researchers are still in progress.
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Affiliation(s)
- Aysegul Gungor Aydin
- Department of Psychology, Behavioral and Systems Neuroscience, Rutgers University, Piscataway, NJ, USA
| | | | - Esat Adiguzel
- Department of Neuroscience, Graduate School of Health Sciences, Pamukkale University, Denizli, Turkey
- Department of Anatomy, School of Medicine, Pamukkale University, Denizli, Turkey
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Shibukawa A, Higuchi R, Song G, Mikami H, Sudo Y, Jang M. Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography. Nat Commun 2024; 15:2926. [PMID: 38589389 PMCID: PMC11001868 DOI: 10.1038/s41467-024-47009-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 03/11/2024] [Indexed: 04/10/2024] Open
Abstract
The capability of focus control has been central to optical technologies that require both high temporal and spatial resolutions. However, existing varifocal lens schemes are commonly limited to the response time on the microsecond timescale and share the fundamental trade-off between the response time and the tuning power. Here, we propose an ultrafast holographic focusing method enabled by translating the speed of a fast 1D beam scanner into the speed of the complex wavefront modulation of a relatively slow 2D spatial light modulator. Using a pair of a digital micromirror device and a resonant scanner, we demonstrate an unprecedented refresh rate of focus control of 31 MHz, which is more than 1,000 times faster than the switching rate of a digital micromirror device. We also show that multiple micrometer-sized focal spots can be independently addressed in a range of over 1 MHz within a large volume of 5 mm × 5 mm × 5.5 mm, validating the superior spatiotemporal characteristics of the proposed technique - high temporal and spatial precision, high tuning power, and random accessibility in a three-dimensional space. The demonstrated scheme offers a new route towards three-dimensional light manipulation in the 100 MHz regime.
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Affiliation(s)
- Atsushi Shibukawa
- Research Institute for Electronic Science, Hokkaido University, Sapporo, 001-0020, Japan
| | - Ryota Higuchi
- Research Institute for Electronic Science, Hokkaido University, Sapporo, 001-0020, Japan
| | - Gookho Song
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Hideharu Mikami
- Research Institute for Electronic Science, Hokkaido University, Sapporo, 001-0020, Japan.
| | - Yuki Sudo
- Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8530, Japan.
| | - Mooseok Jang
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.
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Takedai T, Block N, Pinal KM, Frederick SW. Results of routine thoracic radiographic examinations rarely impact the plan to proceed with anesthetic procedures in dogs with presumed acute intervertebral disc herniation. Front Vet Sci 2024; 11:1385814. [PMID: 38650854 PMCID: PMC11033516 DOI: 10.3389/fvets.2024.1385814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 03/22/2024] [Indexed: 04/25/2024] Open
Abstract
Introduction Acute thoracolumbar intervertebral disc herniation (IVDH) constitutes an emergency because associated neurological clinical signs can be progressive, with prognosis dependent on preoperative presence of deep pain perception. Pre-anesthetic thoracic radiographs are routinely performed to evaluate for potential pathology that could result in increased risk or change in overall prognosis. However, due to the emergent nature of this disease, the weight of thoracic radiographic findings on treatment plans for these dogs in unknown. The objective of this study was to investigate the clinical benefit of thoracic radiographs prior to advanced spinal imaging and surgery for acute non-ambulatory dogs with suspected T3-L3 myelopathy. Methods Consecutive dogs presented with presumed acute IVDH between July 2020-July 2022 were identified, and medical records were reviewed retrospectively. Age, body weight, and alteration of treatment plan were compared between the dogs with positive thoracic pathology identified on thoracic radiographs and those with negative thoracic pathology. Results Only 2/105 dogs had their diagnostic and treatment plans changed due to thoracic radiographic findings. Dogs with radiographic pathology diagnosed (2/16) were more likely to have their treatment plans changed than dogs with no radiographic pathology (0/89) (p = 0.014). The odds of radiographic thoracic pathology were 4.6 times higher in dogs aged 12 years or older [OR 4.6 (95%CI 1.2-17, p = 0.026]. Discussion Performing routine thoracic radiography prior to advanced (anesthetized) diagnostic spinal imaging in presumed IVDH cases rarely resulted in a change to the treatment plan, thought eh practice may be clinically relevant in dogs 12 years of age or older.
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Affiliation(s)
- Teiko Takedai
- Surgery Department, BluePearl Specialty and Emergency Pet Hospital, Maitland, FL, United States
| | - Nicole Block
- Neurology Department, BluePearl Specialty and Emergency Pet Hospital, Sandy Springs, GA, United States
| | - Karina M. Pinal
- Neurology Department, BluePearl Specialty and Emergency Pet Hospital, Sandy Springs, GA, United States
| | - Steven W. Frederick
- Science, BluePearl Specialty and Emergency Pet Hospital, Sandy Springs, GA, United States
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Cipolletta E, Fiorentino MC, Vreju FA, Moccia S, Filippucci E. Editorial: Artificial intelligence in rheumatology and musculoskeletal diseases. Front Med (Lausanne) 2024; 11:1402871. [PMID: 38646556 PMCID: PMC11026684 DOI: 10.3389/fmed.2024.1402871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Affiliation(s)
- Edoardo Cipolletta
- Rheumatology Unit, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
- Academic Rheumatology, University of Nottingham, Nottingham, United Kingdom
| | | | - Florentin Ananu Vreju
- Department of Rheumatology, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Sara Moccia
- Department of Excellence in Robotics and AI, The Biorobotics Institute, Scuola Superiore Sant'anna, Pisa, Italy
| | - Emilio Filippucci
- Rheumatology Unit, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
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Finnegan LP, Bada HS. Editorial: Effects of perinatal opioid exposure-volume II. Front Pediatr 2024; 12:1396595. [PMID: 38646511 PMCID: PMC11027736 DOI: 10.3389/fped.2024.1396595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 03/13/2024] [Indexed: 04/23/2024] Open
Affiliation(s)
| | - Henrietta S Bada
- Department of Pediatrics, College of Medicine, University of Kentucky, Lexington, KY, United States
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Chlorogiannis DD, Moussa AM, Zhao K, Alexander ES, Sofocleous CT, Sotirchos VS. Imaging Considerations before and after Liver-Directed Locoregional Treatments for Metastatic Colorectal Cancer. Diagnostics (Basel) 2024; 14:772. [PMID: 38611685 PMCID: PMC11011364 DOI: 10.3390/diagnostics14070772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Colorectal cancer is a leading cause of cancer-related death. Liver metastases will develop in over one-third of patients with colorectal cancer and are a major cause of morbidity and mortality. Even though surgical resection has been considered the mainstay of treatment, only approximately 20% of the patients are surgical candidates. Liver-directed locoregional therapies such as thermal ablation, Yttrium-90 transarterial radioembolization, and stereotactic body radiation therapy are pivotal in managing colorectal liver metastatic disease. Comprehensive pre- and post-intervention imaging, encompassing both anatomic and metabolic assessments, is invaluable for precise treatment planning, staging, treatment response assessment, and the prompt identification of local or distant tumor progression. This review outlines the value of imaging for colorectal liver metastatic disease and offers insights into imaging follow-up after locoregional liver-directed therapy.
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Affiliation(s)
| | - Amgad M. Moussa
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ken Zhao
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Erica S. Alexander
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | - Vlasios S. Sotirchos
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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Wendling D, Tabaa OA, Chevet B, Fakih O, Ghossan R, Hecquet S, Dernis E, Maheu E, Saraux A, Besson FL, Alegria GC, Cortet B, Fautrel B, Felten R, Morel J, Ottaviani S, Querellou-Lefranc S, Ramon A, Ruyssen-Witrand A, Seror R, Tournadre A, Foulquier N, Verlhac B, Verhoeven F, Devauchelle-Pensec V. Recommendations of the French Society of Rheumatology for the management in current practice of patients with Polymyalgia Rheumatica. Joint Bone Spine 2024:105730. [PMID: 38583691 DOI: 10.1016/j.jbspin.2024.105730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/09/2024]
Abstract
OBJECTIVE To develop recommendations for the routine management of patients with polymyalgia rheumatica (PMR) Methods: Following standard procedures, a systematic review of the literature by 5 supervised junior rheumatologists, based on the questions selected by the steering committee (5 senior rheumatologists), was used as the basis for working meetings, followed by a one-day plenary meeting with the working group (15 members), leading to the development of the wording and determination of the strength of the recommendations and the level of agreement of the experts. RESULTS Five general principles and 19 recommendations were drawn up. Three recommendations relate to diagnosis and the use of imaging, and 5 to the assessment of the disease, its activity and co-morbidities. Non-pharmacological therapies are the subject of one recommendation. Three recommendations concern initial treatment based on general corticosteroid therapy, 5 concern the reduction of corticosteroid therapy and follow-up, and 2 concern corticosteroid dependence and steroid-sparing treatments (anti-IL-6). CONCLUSION These recommendations take account of current data on PMR, with the aim of reducing exposure to corticosteroid therapy and its side effects in a fragile population. They are intended to be practical, to help practitioners in the day-to-day management of patients with PMR.
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Affiliation(s)
- Daniel Wendling
- Rhumatologie, CHU de Besançon et Université de Franche-Comté, Besançon, France.
| | - Omar Al Tabaa
- Rhumatologie, Hôpital Cochin, AP-HP, Paris, France; Rhumatologie, Hôpital NOVO, Pontoise, France
| | - Baptiste Chevet
- Université de Bretagne Occidentale (Univ Brest), Department of Rheumatology, CHU Brest, INSERM (U1227), LabEx IGO, Brest, France, 29200 Brest, France
| | - Olivier Fakih
- Rhumatologie, CHU de Besançon et Université de Franche-Comté, Besançon, France
| | - Roba Ghossan
- Rhumatologie, Hôpital Cochin, AP-HP, Paris, France
| | | | | | - Emmanuel Maheu
- Service de Rhumatologie, Hôpital St Antoine, APHP, et cabinet médical, Paris, France
| | - Alain Saraux
- Université de Bretagne Occidentale (Univ Brest), Department of Rheumatology, CHU Brest, INSERM (U1227), LabEx IGO, Brest, France, 29200 Brest, France
| | - Florent L Besson
- Service de Médecine Nucléaire-Imagerie Moléculaire, Hôpitaux Universitaires Paris-Saclay AP-HP, CHU Bicêtre, DMU SMART IMAGING, Le Kremlin-Bicêtre, France
| | | | - Bernard Cortet
- Service de Rhumatologie, CHU de Lille, 59037 Lille, France
| | - Bruno Fautrel
- AP-HP.Sorbonne Université, Service de Rhumatologie,GH Pitié Salpêtrière, INSERM UMRS 1136-5, Réseau de Recherche Clinique CRI-IMIDIATE, 75013 Paris, France
| | - Renaud Felten
- Service de Rhumatologie et Centre d'Investigation Clinique 1434, Hôpitaux Universitaires de Strasbourg, France
| | - Jacques Morel
- Service de Rhumatologie. CHU et Université de Montpellier, Montpellier, France
| | | | - Solène Querellou-Lefranc
- Nuclear Medicine department, University Hospital, Brest, France, University of Western Brittany (UBO), Brest, France, Inserm, Univ Brest, CHRU Brest, UMR 1304, GETBO, Brest cedex, France
| | - André Ramon
- Service de Rhumatologie, CHU Dijon Bourgogne, Dijon, France
| | - Adeline Ruyssen-Witrand
- Centre de rhumatologie, CHU de Toulouse, Centre d'Investigation Clinique de Toulouse CIC1436, Inserm, Team PEPSS « Pharmacologie En Population cohorteS et biobanqueS », Université Paul Sabatier Toulouse 3, Toulouse, France
| | - Raphaèle Seror
- Service de Rhumatologie, CHU Kremlin-Bicetre, APHP, Paris, France
| | - Anne Tournadre
- Rhumatologie CHU Clermont-Ferrand, Université Clermont Auvergne INRAe, France
| | - Nathan Foulquier
- LBAI, UMR1227, Univ Brest, Inserm, Brest, France ; CHU de Brest, Brest, France
| | | | - Frank Verhoeven
- Rhumatologie, CHU de Besançon et Université de Franche-Comté, Besançon, France
| | - Valérie Devauchelle-Pensec
- Université de Bretagne Occidentale (Univ Brest), Department of Rheumatology, CHU Brest, INSERM (U1227), LabEx IGO, Brest, France, 29200 Brest, France.
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Ren H, Li Z, Li J, Zhou J, He Y, Li C, Wang Q, Chen X, Tang J. Correlation Between Cortical Thickness Abnormalities of the Olfactory Sulcus and Olfactory Identification Disorder and Persistent Auditory Verbal Hallucinations in Chinese Patients With Chronic Schizophrenia. Schizophr Bull 2024:sbae040. [PMID: 38577952 DOI: 10.1093/schbul/sbae040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
BACKGROUND AND HYPOTHESIS Persistent auditory verbal hallucinations (pAVHs) and olfactory identification impairment are common in schizophrenia (SCZ), but the neuroimaging mechanisms underlying both pAVHs and olfactory identification impairment are unclear. This study aimed to investigate whether pAVHs and olfactory identification impairment in SCZ patients are associated with changes in cortical thickness. STUDY DESIGN In this study, cortical thickness was investigated in 78 SCZ patients with pAVHs (pAVH group), 58 SCZ patients without AVHs (non-AVH group), and 83 healthy controls (HC group) using 3T magnetic resonance imaging. The severity of pAVHs was assessed by the Auditory Hallucination Rating Scale. Olfactory identification deficits were assessed using the Odor Stick Identification Test for Japanese (OSIT-J). In addition, the relationship between the severity of pAVHs and olfactory identification disorder and cortical thickness abnormalities was determined. STUDY RESULTS Significant reductions in cortical thickness were observed in the right medial orbital sulcus (olfactory sulcus) and right orbital sulcus (H-shaped sulcus) in the pAVH group compared to both the non-AVH and HC groups (P < .003, Bonferroni correction). Furthermore, the severity of pAVHs was found to be negatively correlated with the reduction in cortical thickness in the olfactory sulcus and H-shaped sulcus. Additionally, a decrease in cortical thickness in the olfactory sulcus showed a positive correlation with the OSIT-J scores (P < .05, false discovery rate correction). CONCLUSIONS Cortical thickness abnormalities in the olfactory sulcus may be a common neuroimaging mechanism for pAVHs and olfactory identification deficits in SCZ patients.
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Affiliation(s)
- Honghong Ren
- Department of Clinical Psychology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Department of Clinical Psychology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zongchang Li
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jinguang Li
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jun Zhou
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ying He
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chunwang Li
- Department of Radiology, Hunan Children's Hospital, Changsha, China
| | - Qianjin Wang
- Department of Clinical Psychology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Department of Clinical Psychology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiaogang Chen
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jinsong Tang
- Department of Psychiatry, Sir Run-Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Hunan Provincial Brain Hospital (The second people's Hospital of Hunan Province), Changsha, China
- Zigong Mental Health Center, Zigong, China
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Lazzarotto A, Hamzaoui M, Tonietto M, Dubessy AL, Khalil M, Pirpamer L, Ropele S, Enzinger C, Battaglini M, Stromillo ML, De Stefano N, Filippi M, Rocca MA, Gallo P, Gasperini C, Stankoff B, Bodini B. Time is myelin: early cortical myelin repair prevents atrophy and clinical progression in multiple sclerosis. Brain 2024; 147:1331-1343. [PMID: 38267729 PMCID: PMC10994569 DOI: 10.1093/brain/awae024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 12/15/2023] [Accepted: 01/13/2024] [Indexed: 01/26/2024] Open
Abstract
Cortical myelin loss and repair in multiple sclerosis (MS) have been explored in neuropathological studies, but the impact of these processes on neurodegeneration and the irreversible clinical progression of the disease remains unknown. Here, we evaluated in vivo cortical demyelination and remyelination in a large cohort of people with all clinical phenotypes of MS followed up for 5 years using magnetization transfer imaging (MTI), a technique that has been shown to be sensitive to myelin content changes in the cortex. We investigated 140 people with MS (37 clinically isolated syndrome, 71 relapsing-MS, 32 progressive-MS), who were clinically assessed at baseline and after 5 years and, along with 84 healthy controls, underwent a 3 T-MRI protocol including MTI at baseline and after 1 year. Changes in cortical volume over the radiological follow-up were computed with a Jacobian integration method. Magnetization transfer ratio was employed to calculate for each patient an index of cortical demyelination at baseline and of dynamic cortical demyelination and remyelination over the follow-up period. The three indices of cortical myelin content change were heterogeneous across patients but did not significantly differ across clinical phenotypes or treatment groups. Cortical remyelination, which tended to fail in the regions closer to CSF (-11%, P < 0.001), was extensive in half of the cohort and occurred independently of age, disease duration and clinical phenotype. Higher indices of cortical dynamic demyelination (β = 0.23, P = 0.024) and lower indices of cortical remyelination (β = -0.18, P = 0.03) were significantly associated with greater cortical atrophy after 1 year, independently of age and MS phenotype. While the extent of cortical demyelination predicted a higher probability of clinical progression after 5 years in the entire cohort [odds ratio (OR) = 1.2; P = 0.043], the impact of cortical remyelination in reducing the risk of accumulating clinical disability after 5 years was significant only in the subgroup of patients with shorter disease duration and limited extent of demyelination in cortical regions (OR = 0.86, P = 0.015, area under the curve = 0.93). In this subgroup, a 30% increase in cortical remyelination nearly halved the risk of clinical progression at 5 years, independently of clinical relapses. Overall, our results highlight the critical role of cortical myelin dynamics in the cascade of events leading to neurodegeneration and to the subsequent accumulation of irreversible disability in MS. Our findings suggest that early-stage myelin repair compensating for cortical myelin loss has the potential to prevent neuro-axonal loss and its long-term irreversible clinical consequences in people with MS.
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Affiliation(s)
- Andrea Lazzarotto
- Department of Neuroscience, Sorbonne Université, Paris Brain Institute, CNRS, Inserm, 75013 Paris, France
- AP-HP, Hôpital Universitaire Pitié-Salpêtrière, 75013 Paris, France
- Padova Neuroscience Center, University of Padua, 35122 Padua, Italy
| | - Mariem Hamzaoui
- Department of Neuroscience, Sorbonne Université, Paris Brain Institute, CNRS, Inserm, 75013 Paris, France
| | - Matteo Tonietto
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Service Hospitalier Frédéric Joliot, 91400 Orsay, France
- Roche Pharma Research & Early Development, F. Hoffmann-La Roche Ltd., CH-4070 Basel, Switzerland
| | | | - Michael Khalil
- Department of Neurology, Medical University of Graz, 8036 Graz, Austria
| | - Lukas Pirpamer
- Department of Neurology, Medical University of Graz, 8036 Graz, Austria
- Medical Image Analysis Center (MIAC) and Department of Biomedical Engineering, University of Basel, CH-4051 Basel, Switzerland
| | - Stefan Ropele
- Department of Neurology, Medical University of Graz, 8036 Graz, Austria
| | | | - Marco Battaglini
- Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Maria Laura Stromillo
- Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Nicola De Stefano
- Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, Neurology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Maria Assunta Rocca
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, Neurology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Paolo Gallo
- Padova Neuroscience Center, University of Padua, 35122 Padua, Italy
- Multiple Sclerosis Centre of Veneto Region, 35128 Padua, Italy
| | | | - Bruno Stankoff
- Department of Neuroscience, Sorbonne Université, Paris Brain Institute, CNRS, Inserm, 75013 Paris, France
- AP-HP, Hôpital Universitaire Pitié-Salpêtrière, 75013 Paris, France
| | - Benedetta Bodini
- Department of Neuroscience, Sorbonne Université, Paris Brain Institute, CNRS, Inserm, 75013 Paris, France
- AP-HP, Hôpital Universitaire Pitié-Salpêtrière, 75013 Paris, France
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Richardson C, Cromer M, Tatem L, Wade R, Russell D. Polymicrobial Purulent Pericarditis From a Pancreatico-Pericardial Fistula. JACC Case Rep 2024; 29:102288. [PMID: 38465285 PMCID: PMC10918555 DOI: 10.1016/j.jaccas.2024.102288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/05/2024] [Accepted: 02/15/2024] [Indexed: 03/12/2024]
Abstract
A 54-year-old male with chronic pancreatitis presented with dyspnea. Computed tomography scans demonstrated a subdiaphragmatic fluid collection with pericardial fistulization. Pericardial fluid cultures were polymicrobial in nature. Purulent pericarditis is rare but carries a high mortality rate. We present the first documented case of pancreatico-pericardial fistulization causing purulent pericarditis.
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Affiliation(s)
- Christopher Richardson
- Division of Pulmonary, Allergy, & Critical Care Medicine, School of Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Mark Cromer
- Division of Internal Medicine, School of Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Luis Tatem
- Division of Pulmonary, Allergy, & Critical Care Medicine, School of Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Raymond Wade
- Division of Pulmonary, Allergy, & Critical Care Medicine, School of Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Derek Russell
- Division of Pulmonary, Allergy, & Critical Care Medicine, School of Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
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Liu X, Cui Q, Li H, Wang S, Zhang Q, Huang W, Liu C, Cai W, Li T, Yang Z, Ma C, Ren L, Liu SF, Zhao K. Biocompatible Metal-Free Perovskite Membranes for Wearable X-ray Detectors. ACS Appl Mater Interfaces 2024; 16:16300-16308. [PMID: 38513050 DOI: 10.1021/acsami.4c01069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Halide perovskites are emerging as promising materials for X-ray detection owing to their compatibility with flexible fabrication, cost-effective solution processing, and exceptional carrier transport behaviors. However, the challenge of removing lead from high-performing perovskites, crucial for wearable electronics, while retaining their superior performance, persists. Here, we present for the first time a highly sensitive and robust flexible X-ray detector utilizing a biocompatible, metal-free perovskite, MDABCO-NH4I3 (MDABCO = methyl-N'-diazabicyclo[2.2.2]octonium). This wearable X-ray detector, based on a MDABCO-NH4I3 thick membrane, exhibits remarkable properties including a large resistivity of 1.13 × 1011 Ω cm, a high mobility-lifetime product (μ-τ) of 1.64 × 10-4 cm2 V-1, and spin Seebeck effect coefficient of 1.9 nV K-1. We achieve a high sensitivity of 6521.6 ± 700 μC Gyair-1 cm-2 and a low detection limit of 77 nGyair s-1, ranking among the highest for biocompatible X-ray detectors. Additionally, the device exhibits effective X-ray imaging at a low dose rate of 1.87 μGyair s-1, which is approximately one-third of the dose rate used in regular medical diagnostics. Crucially, both the MDABCO-NH4I3 thick membrane and the device showcase excellent mechanical robustness. These attributes render the flexible MDABCO-NH4I3 thick membranes highly competitive for next-generation, high-performance, wearable X-ray detection applications.
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Affiliation(s)
- Xinmei Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Qingyue Cui
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Haojin Li
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Shumei Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Qi Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Wenliang Huang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Chou Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Weilun Cai
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Telun Li
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Zhou Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Chuang Ma
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Lixia Ren
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Shengzhong Frank Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
- Dalian National Laboratory for Clean Energy; iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Kui Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials; School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
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Su D, Lan Y, Wang B, Ma Q. Caroli's disease misdiagnosed as bile duct cystadenoma: A case report. J Clin Ultrasound 2024. [PMID: 38563484 DOI: 10.1002/jcu.23683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
Caroli's disease is also known as Congenital intrahepatic bile duct dilatation, and previously known as a congenital intrahepatic bile duct cyst; it is characterized by single or multiple intrahepatic cystic dilatations. In this article, we report a case of Caroli's disease (CT size 21.2 × 16.9 × 19.8 cm). Preoperative abdominal ultrasound and enhanced CT were misdiagnosed as biliary cystadenoma or hepatic echinococcosis, and finally diagnosed as Caroli's disease by postoperative histopathological examinations. Most of the disease is single or multiple cystic dilatation of small bile duct. Giant Caroli disease, cystic dilations with diameter >20 cm is very rarely seen in the clinic. The lack of experience of diagnosing giant cystic dilatation makes it difficult to make accurate diagnosis. Therefore, we analyze the causes of imaging misdiagnosis through this case report, and summarize the imaging diagnostic skills of the disease combined with relevant imaging diagnosis experience. The purpose of this study is to deepen the understanding of giant Caroli disease among imaging doctors so as to reduce the misdiagnosis of the disease in the future.
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Affiliation(s)
- Dai Su
- Department of Functional Examination in Children, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, China
| | - Yuxia Lan
- Department of Functional Examination in Children, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, China
| | - Baibing Wang
- Department of Functional Examination in Children, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, China
| | - Qiang Ma
- Department of General Surgery, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, China
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44
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Liu Y, Jiang Z, Yang X, Wang Y, Yang B, Fu Q. Engineering Nanoplatforms for Theranostics of Atherosclerotic Plaques. Adv Healthc Mater 2024:e2303612. [PMID: 38564883 DOI: 10.1002/adhm.202303612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 03/28/2024] [Indexed: 04/04/2024]
Abstract
Atherosclerotic plaque formation is considered the primary pathological mechanism underlying atherosclerotic cardiovascular diseases, leading to severe cardiovascular events such as stroke, acute coronary syndromes, and even sudden cardiac death. Early detection and timely intervention of plaques are challenging due to the lack of typical symptoms in the initial stages. Therefore, precise early detection and intervention play a crucial role in risk stratification of atherosclerotic plaques and achieving favorable post-interventional outcomes. The continuously advancing nanoplatforms have demonstrated numerous advantages including high signal-to-noise ratio, enhanced bioavailability, and specific targeting capabilities for imaging agents and therapeutic drugs, enabling effective visualization and management of atherosclerotic plaques. Motivated by these superior properties, various noninvasive imaging modalities for early recognition of plaques in the preliminary stage of atherosclerosis are comprehensively summarized. Additionally, several therapeutic strategies are proposed to enhance the efficacy of treating atherosclerotic plaques. Finally, existing challenges and promising prospects for accelerating clinical translation of nanoplatform-based molecular imaging and therapy for atherosclerotic plaques are discussed. In conclusion, this review provides an insightful perspective on the diagnosis and therapy of atherosclerotic plaques.
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Affiliation(s)
- Yuying Liu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Zeyu Jiang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Xiao Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Bin Yang
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Qinrui Fu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
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Gest AMM, Lazzari-Dean JR, Ortiz G, Yaeger-Weiss SK, Boggess SC, Miller EW. A red-emitting carborhodamine for monitoring and measuring membrane potential. Proc Natl Acad Sci U S A 2024; 121:e2315264121. [PMID: 38551837 PMCID: PMC10998576 DOI: 10.1073/pnas.2315264121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/25/2024] [Indexed: 04/02/2024] Open
Abstract
Biological membrane potentials, or voltages, are a central facet of cellular life. Optical methods to visualize cellular membrane voltages with fluorescent indicators are an attractive complement to traditional electrode-based approaches, since imaging methods can be high throughput, less invasive, and provide more spatial resolution than electrodes. Recently developed fluorescent indicators for voltage largely report changes in membrane voltage by monitoring voltage-dependent fluctuations in fluorescence intensity. However, it would be useful to be able to not only monitor changes but also measure values of membrane potentials. This study discloses a fluorescent indicator which can address both. We describe the synthesis of a sulfonated tetramethyl carborhodamine fluorophore. When this carborhodamine is conjugated with an electron-rich, methoxy (-OMe) containing phenylenevinylene molecular wire, the resulting molecule, CRhOMe, is a voltage-sensitive fluorophore with red/far-red fluorescence. Using CRhOMe, changes in cellular membrane potential can be read out using fluorescence intensity or lifetime. In fluorescence intensity mode, CRhOMe tracks fast-spiking neuronal action potentials (APs) with greater signal-to-noise than state-of-the-art BeRST 1 (another voltage-sensitive fluorophore). CRhOMe can also measure values of membrane potential. The fluorescence lifetime of CRhOMe follows a single exponential decay, substantially improving the quantification of membrane potential values using fluorescence lifetime imaging microscopy (FLIM). The combination of red-shifted excitation and emission, mono-exponential decay, and high voltage sensitivity enable fast FLIM recording of APs in cardiomyocytes. The ability to both monitor and measure membrane potentials with red light using CRhOMe makes it an important approach for studying biological voltages.
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Affiliation(s)
| | | | - Gloria Ortiz
- Department of Chemistry, University of California, Berkeley, CA 94720
| | | | - Steven C Boggess
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - Evan W Miller
- Department of Chemistry, University of California, Berkeley, CA 94720
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720
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Ragnarsson O, Juhlin CC, Torpy DJ, Falhammar H. A clinical perspective on ectopic Cushing's syndrome. Trends Endocrinol Metab 2024; 35:347-360. [PMID: 38143211 DOI: 10.1016/j.tem.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/04/2023] [Accepted: 12/04/2023] [Indexed: 12/26/2023]
Abstract
Cushing's syndrome (CS) refers to the clinical features of prolonged pathological glucocorticoid excess. About 10-20% of individuals with CS have ectopic CS (ECS), that is, an adrenocorticotropin (ACTH)-producing tumour outside the pituitary gland. ACTH-secreting neuroendocrine neoplasia (NENs) can arise from many organs, although bronchial NEN, small cell lung cancer (SCLC), pancreatic NEN, thymic NEN, medullary thyroid cancer (MTC), and pheochromocytoma are the most common. Patients with ECS frequently present with severe hypercortisolism. The risk of life-threatening complications is high in severe cases, unless the hypercortisolism is effectively treated. A good outcome in ECS requires a methodical approach, incorporating prompt diagnosis, tumour localization, control of cortisol excess, and resection of the primary tumour when possible.
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Affiliation(s)
- Oskar Ragnarsson
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Endocrinology, Sahlgrenska University Hospital, Gothenburg, Sweden; Wallenberg Center for Molecular and Translational Medicine, University of Gothenburg, SE-413 90 Gothenburg, Sweden
| | - C Christofer Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden; Department of Pathology and Cancer Diagnostics, Karolinska University Hospital Solna, Stockholm, Sweden
| | - David J Torpy
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Henrik Falhammar
- Department of Endocrinology, Karolinska University, Stockholm, Sweden; Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
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Caruso E, Farruggio S, Silverman NH. Rare case of total anomalous pulmonary venous return into the right atrium in situs solitus. Cardiol Young 2024; 34:919-921. [PMID: 38410075 DOI: 10.1017/s1047951124000179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
We report an uncommon case report of total anomalous pulmonary venous returns into the right atrium at the base of the superior caval vein's ostium without a sinus venosus defect, in situs solitus, without vertical vein or a posterior pulmonary venous confluence.
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Affiliation(s)
- Elio Caruso
- Mediterranean Pediatric Cardiology Center "Bambino Gesù", San Vincenzo Hospital, Taormina, Italy
| | - Silvia Farruggio
- Mediterranean Pediatric Cardiology Center "Bambino Gesù", San Vincenzo Hospital, Taormina, Italy
| | - Norman H Silverman
- Division of Pediatric Cardiology, Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
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Varghese BA, Cen SY, Jensen K, Levy J, Andersen HK, Schulz A, Lei X, Duddalwar VA, Goodenough DJ. Investigating the role of imaging factors in the variability of CT-based texture analysis metrics. J Appl Clin Med Phys 2024; 25:e14192. [PMID: 37962032 PMCID: PMC11005980 DOI: 10.1002/acm2.14192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/02/2023] [Accepted: 10/12/2023] [Indexed: 11/15/2023] Open
Abstract
OBJECTIVE This study assesses the robustness of first-order radiomic texture features namely interquartile range (IQR), coefficient of variation (CV) and standard deviation (SD) derived from computed tomography (CT) images by varying dose, reconstruction algorithms and slice thickness using scans of a uniform water phantom, a commercial anthropomorphic liver phantom, and a human liver in-vivo. MATERIALS AND METHODS Scans were acquired on a 16 cm detector GE Revolution Apex Edition CT scanner with variations across three different nominal slice thicknesses: 0.625, 1.25, and 2.5 mm, three different dose levels: CTDIvol of 13.86 mGy for the standard dose, 40% reduced dose and 60% reduced dose and two different reconstruction algorithms: a deep learning image reconstruction (DLIR-high) algorithm and a hybrid iterative reconstruction (IR) algorithm ASiR-V50% (AV50) were explored, varying one at a time. To assess the effect of non-linear modifications of images by AV50 and DLIR-high, images of the water phantom were also reconstructed using filtered back projection (FBP). Quantitative measures of IQR, CV and SD were extracted from twelve pre-selected, circular (1 cm diameter) regions of interest (ROIs) capturing different texture patterns across all scans. RESULTS Across all scans, imaging, and reconstruction settings, CV, IQR and SD were observed to increase with reduction in dose and slice thickness. An exception to this observation was found when using FBP reconstruction. Lower values of CV, IQR and SD were observed in DLIR-high reconstructions compared to AV50 and FBP. The Poisson statistics were more stringently noted in FBP than DLIR-high and AV50, due to the non-linear nature of the latter two algorithms. CONCLUSION Variation in image noise due to dose reduction algorithms, tube current, and slice thickness show a consistent trend across phantom and patient scans. Prospective evaluation across multiple centers, scanners and imaging protocols is needed for establishing quality assurance standards of radiomics.
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Affiliation(s)
- Bino Abel Varghese
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Steven Yong Cen
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Kristin Jensen
- Department of Physics and Computational RadiologyOsloNorway
| | | | | | - Anselm Schulz
- Department of Radiology and Nuclear MedicineOslo University HospitalOsloNorway
| | - Xiaomeng Lei
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Vinay Anant Duddalwar
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - David John Goodenough
- Department of RadiologyGeorge Washington UniversityWashingtonDistrict of ColumbiaUSA
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49
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Han J, Gao J, Chen D, Du M, Wu Y, Ma X, Xie M, Han H, Wu C, Xue X. Comparative study of imaging and pathology of primary mucinous adenocarcinoma with different imaging manifestations. Clin Respir J 2024; 18:e13750. [PMID: 38616354 PMCID: PMC11016630 DOI: 10.1111/crj.13750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/18/2024] [Accepted: 03/20/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND Pulmonary mucinous adenocarcinoma is a special type of lung cancer. Its imaging manifestations are diverse, which brings challenges to clinical diagnosis. However, its formation mechanism is unclear. OBJECTIVE The objective of this study is to analyse the relevant mechanisms of the formation of pulmonary mucinous adenocarcinoma by observing its different imaging and pathological manifestations. DATA AND METHODS Retrospective analysis was conducted on imaging manifestations and pathological data of 103 patients with pulmonary mucinous adenocarcinoma confirmed intraoperatively or pathologically. RESULTS Forty-three patients had pulmonary mucinous adenocarcinoma with a solitary nodule/mass, 41 patients with localized pneumonia and 19 patients with diffuse pneumonia. Their CT manifestations included 'falling snowflake sign', ground-glass opacity close to the heart, vacuous signs/honeycombing and withered tree branches. Under the microscope, all the three types of pulmonary mucinous adenocarcinoma had visibly formed mucus lakes but were made of tumour cells with totally different shapes, which included the goblet-like shape (tall column-like shape) and quasi-circular shape. Tall column-shaped tumour cells were negative or weakly positive for thyroid transcription factor-1 (TTF-1) and strongly positive for ALK mutation, whereas quasi-circular tumour cells were positive for TTF-1 and less positive for ALK mutation. CONCLUSION The different imaging manifestations of mucinous adenocarcinoma are possibly due to the different amounts or viscosity of mucus produced, and the mechanisms of its formation may include (1) tumour cells in different shapes have different abilities to produce mucus; (2) tumours in different stages produce different amounts or viscosity of mucus; and (3) the TTF-1 and ALK genes affect the production of mucus.
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Affiliation(s)
- Jun Han
- Department of RadiologyThird Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Jie Gao
- Department of PathologyChinese PLA General HospitalBeijingChina
| | - Demei Chen
- Department of Nuclear MedicineChongqing University Cancer HospitalChongqingChina
| | - Mou Du
- Department of Radiology, West China School of Public Health and West China Fourth HospitalSichuan UniversityChengduSichuanChina
| | - Yuxin Wu
- Department of RadiologyTraditional Chinese Medicine Hospital of Changshou DistrictChongqingChina
| | - Xidong Ma
- Department of Respiratory and Critical CareChinese PLA General HospitalBeijingChina
| | - Mei Xie
- Department of Respiratory and Critical CareChinese PLA General HospitalBeijingChina
| | - Hua Han
- Department of RadiologyThird Affiliated Hospital of Jinzhou Medical UniversityJinzhouLiaoningChina
| | - Chongchong Wu
- Department of RadiologyChinese PLA General HospitalBeijingChina
| | - Xinying Xue
- Department of Respiratory and Critical Care, Beijing Shijitan HospitalCapital Medical UniversityBeijingChina
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50
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Roshardt Prieto NM, Turko P, Zellweger C, Nguyen-Kim TDL, Staeger R, Bellini E, Levesque MP, Dummer R, Ramelyte E. Patterns of radiological response to tebentafusp in patients with metastatic uveal melanoma. Melanoma Res 2024; 34:166-174. [PMID: 38126339 PMCID: PMC10906186 DOI: 10.1097/cmr.0000000000000952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
Metastatic uveal melanoma (mUM) is a rare type of melanoma with poor outcomes. The first systemic treatment to significantly prolong overall survival (OS) in patients with mUM was tebentafusp, a bispecific protein that can redirect T-cells to gp-100 positive cells. However, the objective response rate according to Response Evaluation Criteria in Solid Tumors (RECIST) may underestimate the clinical impact of tebentafusp. As metabolic response assessed by PET Response Criteria in Solid Tumors (PERCIST) has been reported to better correlate with clinical outcome, we here compared the patterns of radiological and morphological responses in HLA-A*02:01-positive patients with mUM treated with tebentafusp. In the 19 enrolled patients, RECIST showed an overall response rate (ORR) of 10%, median progression-free survival of 2.8 months (95% CI 2.5-8.4), and median OS (mOS) of 18.8 months. In 10 patients, where both RECIST and PERCIST evaluation was available, the ORR was 10% for both; however, the PFS was longer for PERCIST compared to RECIST, 3.1 and 2.4 months, respectively. A poor agreement between the criteria was observed at all assessments (Cohen's kappa ≤0), yet they differed significantly only at the first on-treatment imaging ( P = 0.037). Elevated baseline LDH and age were associated with an increased risk for RECIST progression, while lymphocyte decrease after the first infusions correlated to reduced risk of RECIST progression. Detectable ctDNA at baseline did not correlate with progression. Early response to tebentafusp may be incompletely captured by conventional imaging, leading to a need to consider both tumor morphology and metabolism.
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Affiliation(s)
| | - Patrick Turko
- Department of Dermatology, University Hospital Zurich
- Medical Faculty, University of Zurich
| | - Caroline Zellweger
- Institute for Diagnostic and Interventional Radiology, University Hospital Zurich
| | - Thi Dan Linh Nguyen-Kim
- Institute for Diagnostic and Interventional Radiology, University Hospital Zurich
- Institute for Radiology and Nuclear Medicine Waid Municipal Hospital, Zurich, Switzerland
| | - Ramon Staeger
- Department of Dermatology, University Hospital Zurich
- Medical Faculty, University of Zurich
| | | | - Mitchell P. Levesque
- Department of Dermatology, University Hospital Zurich
- Medical Faculty, University of Zurich
| | - Reinhard Dummer
- Department of Dermatology, University Hospital Zurich
- Medical Faculty, University of Zurich
| | - Egle Ramelyte
- Department of Dermatology, University Hospital Zurich
- Medical Faculty, University of Zurich
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