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Lee SM, Dedhia PH, Phay JE. Heterogeneous parathyroid near-infrared autofluorescence patterns are associated with single adenomas in primary hyperparathyroidism. Head Neck 2024; 46:592-598. [PMID: 38133490 DOI: 10.1002/hed.27599] [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: 04/12/2023] [Revised: 11/13/2023] [Accepted: 12/03/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Primary adenoma (PA) and multi-gland hyperplasia (MGH) account for 85% and 15% of primary hyperparathyroidism (PHPT) cases, respectively. Near-infrared autofluorescence (NIRAF) enhances intraoperative parathyroid identification. We hypothesized that PA would display a more heterogeneous NIRAF pattern compared to MGH. METHODS Patients undergoing surgery for sporadic PHPT were categorized based on the presence of PA or MGH. To quantify heterogeneity, we utilized ratios of (1) mean parathyroid gland (PG) NIRAF over background NIRAF (mean ratio), (2) minimum and (3) maximum PG NIRAF over mean PG NIRAF (minimum and maximum ratios). Additionally, a heterogeneity score was quantified using mean ratio (mean PG NIRAF over background NIRAF), and overall NIRAF (mean NIRAF of eight random 15 × 15 pixel areas). A point was assigned to ratios <0.8 or >1.2. Images were quantified by ImageJ software. Mann-Whitney test was performed for all comparisons. RESULTS Of 78 patients, 63 had a single PA and 15 had MGH, totaling 102 PGs. There was no difference between their mean ratios. PA had a lower minimum ratio compared to that of MGH (0.86 ± 0.01 vs. 0.93 ± 0.01, p = 0.001) and a brighter maximum ratio (1.21 ± 0.02 vs. 1.12 ± 0.01, p = 0.0008). PA also scored higher on their heterogeneity scores compared to MGH (1.27 ± 0.23 vs. 0.33 ± 0.15, p = 0.001). CONCLUSION Single parathyroid adenomas display a more heterogeneous autofluorescence pattern compared to that of multi-gland hyperplasia. Intraoperative characterization of PGs by real-time NIR imaging patterns may be a beneficial adjunct during parathyroid surgery.
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Affiliation(s)
- Sang Min Lee
- College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Priya H Dedhia
- Division of Surgical Oncology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - John E Phay
- Division of Surgical Oncology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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152
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Janson A, Sainburg L, Akbarian B, Johnson GW, Rogers BP, Chang C, Englot DJ, Morgan VL. Indirect structural changes and reduced controllability after temporal lobe epilepsy resection. Epilepsia 2024; 65:675-686. [PMID: 38240699 PMCID: PMC10948308 DOI: 10.1111/epi.17889] [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: 09/05/2023] [Revised: 12/08/2023] [Accepted: 01/08/2024] [Indexed: 03/06/2024]
Abstract
OBJECTIVE To understand the potential behavioral and cognitive effects of mesial temporal resection for temporal lobe epilepsy (TLE) a method is required to characterize network-wide functional alterations caused by a discrete structural disconnection. The objective of this study was to investigate network-wide alterations in brain dynamics of patients with TLE before and after surgical resection of the seizure focus using average regional controllability (ARC), a measure of the ability of a node to influence network dynamics. METHODS Diffusion-weighted imaging (DWI) data were acquired in 27 patients with drug-resistant unilateral mesial TLE who underwent selective amygdalohippocampectomy. Imaging data were acquired before and after surgery and a presurgical and postsurgical structural connectome was generated from whole-brain tractography. Edge-wise strength, node strength, and node ARC were compared before and after surgery. Direct and indirect edge-wise strength changes were identified using patient-specific simulated resections. Direct edges were defined as primary edges disconnected by the resection zone itself. Indirect edges were secondary measured edge strength changes. Changes in node strength and ARC were then related to both direct and indirect edge changes. RESULTS We found nodes with significant postsurgical changes in both node strength and ARC surrounding the resection zone (paired t tests, p < .05, Bonferroni corrected). ARC identified additional postsurgical changes in nodes outside of the resection zone within the ipsilateral occipital lobe, which were associated with indirect edge-wise strength changes of the postsurgical network (Fisher's exact test, p < .001). These indirect edge-wise changes were facilitated through the "hub" nodes including the thalamus, putamen, insula, and precuneus. SIGNIFICANCE Discrete network disconnection from TLE resection results in widespread structural and functional changes not predicted by disconnection alone. These can be well characterized by dynamic controllability measures such as ARC and may be useful for investigating changes in brain function that may contribute to seizure recurrence and behavioral or cognitive changes after surgery.
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Affiliation(s)
- Andrew Janson
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Lucas Sainburg
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Behnaz Akbarian
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Graham W Johnson
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Baxter P Rogers
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Catie Chang
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
- Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Dario J Englot
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
- Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, Tennessee, USA
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Victoria L Morgan
- Department of Radiology and Radiological Sciences, Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Reichl N, Rabl E, Shehu N, Ferrari I, Martinoff S, Wiesner G, Stern H, Ewert P, Meierhofer C. Ambulatory sedation for children under 6 years with CHD in MRI and CT. Cardiol Young 2024; 34:647-653. [PMID: 37691624 DOI: 10.1017/s1047951123003207] [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: 09/12/2023]
Abstract
INTRODUCTION In infants and young children, good image quality in MRI and CT requires sedation or general anesthesia to prevent motion artefacts. This study aims to determine the safety of ambulatory sedation for children with CHD in an outpatient setting as a feasible alternative to in-hospital management. METHODS We recorded 91 consecutive MRI and CT examinations of patients with CHD younger than 6 years with ambulatory sedation. CHD diagnoses, vital signs, applied sedatives, and adverse events during or after ambulatory sedation were investigated. RESULTS We analysed 91 patients under 72 months (6 years) of age (median 26.0, range 1-70 months; 36% female). Sixty-eight per cent were classified as ASA IV, 25% as ASA III, and 7% as ASA II (American Society of Anesthesiologists Physical Status Classification). Ambulatory sedation was performed by using midazolam, propofol, and/or S-ketamine. The median sedation time for MRI was 90 minutes (range 35-235 minutes) and 65 minutes for CT (range 40-280 minutes). Two male patients (age 1.5 months, ASA II, and age 17 months, ASA IV) were admitted for in-hospital observation due to unexpected severe airway obstruction. The patients were discharged without sequelae after 1 and 3 days, respectively. All other patients were sent home on the day of examination. CONCLUSION In infants and young children with CHD, MRI or CT imaging can be performed under sedation in an outpatient setting by a well-experienced team. In-hospital backup should be available for unexpected events.
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Affiliation(s)
- Nicolas Reichl
- Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Elisabeth Rabl
- Anesthesiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Nerejda Shehu
- Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Irene Ferrari
- Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Stefan Martinoff
- Radiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Gunther Wiesner
- Anesthesiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Heiko Stern
- Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Peter Ewert
- Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Christian Meierhofer
- Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
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154
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Suchy‐Dicey AM, Longstreth WT, Rhoads K, Umans J, Buchwald D, Grabowski T, Blennow K, Reiman E, Zetterberg H. Plasma biomarkers of Alzheimer's disease and related dementias in American Indians: The Strong Heart Study. Alzheimers Dement 2024; 20:2072-2079. [PMID: 38215191 PMCID: PMC10984473 DOI: 10.1002/alz.13664] [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: 11/16/2023] [Accepted: 12/04/2023] [Indexed: 01/14/2024]
Abstract
INTRODUCTION Identification of Alzheimer's disease (AD) needs inexpensive, noninvasive biomarkers, with validation in all populations. METHODS We collected plasma markers in older American Indian individuals: phosphorylated-tau181 (pTau181); amyloid-beta (Aβ) 40,42; glial fibrillary acidic protein (GFAP); and neurofilament light chain (NfL). Plasma markers were analyzed for discriminant properties with cognitive status and etiology using receiver operating characteristic (ROC) analysis. RESULTS PTau181, GFAP, NfL plasma values were significantly associated with cognition, but Aβ were not. Discriminant performance was moderate for individual markers, with pTau181, GFAP, NfL performing best, but an empirically selected panel of markers (age, sex, education, pTau181, GFAP, NfL, Aβ4240 ratio) had excellent discriminant performance (AUC > 0.8). DISCUSSION In American Indian individuals, pTau181 and Aβ values suggested more common pathology than in majority populations. Aβ was less informative than in other populations; however, all four markers were needed for a best-performing dementia diagnostic model. These data validate utility of AD plasma markers, while suggesting population-specific diagnostic characteristics.
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Affiliation(s)
- Astrid M. Suchy‐Dicey
- Washington State University Elson S Floyd College of MedicineSpokaneWashingtonUSA
- Huntington Medical Research InstitutesPasadenaCaliforniaUSA
- Washington State University Institute for Research and Education to Address Community HealthSeattleWashingtonUSA
- University of Washington Alzheimer's Disease Research CenterSeattleWashingtonUSA
| | - W. T. Longstreth
- Department of NeurologyUniversity of WashingtonSeattleWashingtonUSA
| | - Kristoffer Rhoads
- University of Washington Alzheimer's Disease Research CenterSeattleWashingtonUSA
- Department of NeurologyUniversity of WashingtonSeattleWashingtonUSA
| | - Jason Umans
- MedStar Health Research InstituteHyattsvilleMarylandUSA
| | - Dedra Buchwald
- Washington State University Institute for Research and Education to Address Community HealthSeattleWashingtonUSA
| | - Thomas Grabowski
- University of Washington Alzheimer's Disease Research CenterSeattleWashingtonUSA
- Department of NeurologyUniversity of WashingtonSeattleWashingtonUSA
| | - Kaj Blennow
- Institute of Neuroscience and Physiologythe Sahlgrenska Academy at University of GothenburgMölndalSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
| | - Eric Reiman
- Banner Alzheimer's InstitutePhoenixArizonaUSA
| | - Henrik Zetterberg
- Institute of Neuroscience and Physiologythe Sahlgrenska Academy at University of GothenburgMölndalSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
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155
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Tian S, Shi H, Chen W, Li S, Han C, Du F, Wang W, Wen H, Lei Y, Deng L, Tang J, Zhang J, Lin J, Shi L, Ning B, Zhao K, Miao J, Wang G, Hou H, Huang X, Kong W, Jin X, Ding Z, Lin R. Artificial intelligence-based diagnosis of standard endoscopic ultrasonography scanning sites in the biliopancreatic system: a multicenter retrospective study. Int J Surg 2024; 110:1637-1644. [PMID: 38079604 PMCID: PMC10942157 DOI: 10.1097/js9.0000000000000995] [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: 09/12/2023] [Accepted: 11/27/2023] [Indexed: 03/16/2024]
Abstract
BACKGROUND There are challenges for beginners to identify standard biliopancreatic system anatomical sites on endoscopic ultrasonography (EUS) images. Therefore, the authors aimed to develop a convolutional neural network (CNN)-based model to identify standard biliopancreatic system anatomical sites on EUS images. METHODS The standard anatomical structures of the gastric and duodenal regions observed by EUS was divided into 14 sites. The authors used 6230 EUS images with standard anatomical sites selected from 1812 patients to train the CNN model, and then tested its diagnostic performance both in internal and external validations. Internal validation set tests were performed on 1569 EUS images of 47 patients from two centers. Externally validated datasets were retrospectively collected from 16 centers, and finally 131 patients with 85 322 EUS images were included. In the external validation, all EUS images were read by CNN model, beginners, and experts, respectively. The final decision made by the experts was considered as the gold standard, and the diagnostic performance between CNN model and beginners were compared. RESULTS In the internal test cohort, the accuracy of CNN model was 92.1-100.0% for 14 standard anatomical sites. In the external test cohort, the sensitivity and specificity of CNN model were 89.45-99.92% and 93.35-99.79%, respectively. Compared with beginners, CNN model had higher sensitivity and specificity for 11 sites, and was in good agreement with the experts (Kappa values 0.84-0.98). CONCLUSIONS The authors developed a CNN-based model to automatically identify standard anatomical sites on EUS images with excellent diagnostic performance, which may serve as a potentially powerful auxiliary tool in future clinical practice.
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Affiliation(s)
- Shuxin Tian
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
- Department of Gastroenterology, The First Affiliated Hospital of Medical College, Shihezi University, Shihezi
- National Health Commission Key Laboratory of Central Asia High Incidence Disease Prevention and Control, Shihezi
| | - Huiying Shi
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Weigang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Medical College, Shihezi University, Shihezi
- National Health Commission Key Laboratory of Central Asia High Incidence Disease Prevention and Control, Shihezi
| | - Shijie Li
- National Health Commission Key Laboratory of Central Asia High Incidence Disease Prevention and Control, Shihezi
- Department of Endoscopy Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing
| | - Chaoqun Han
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Fan Du
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Weijun Wang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Hongxu Wen
- Department of Gastroenterology, Lanzhou Second People’s Hospital, Lanzhou
| | - Yali Lei
- Department of Gastroenterology, Weinan Central Hospital, Weinan
| | - Liang Deng
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Jing Tang
- Department of Gastroenterology, Fuling Hospital Affiliated to Chongqing University, Chongqing
| | - Jinjie Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Baotou Medical College, Baotou
| | - Jianjiao Lin
- Department of Gastroenterology, Longgang District People’s Hospital, Shenzhen
| | - Lei Shi
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou
| | - Bo Ning
- Department of Gastroenterology, The Second Affiliated Hospital Chongqing Medical University, Chongqing
| | - Kui Zhao
- Department of Gastroenterology, The First Affiliated Hospital of Chendu Medical College, Chengdu
| | - Jiarong Miao
- Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming
- Yunnan Province Clinical Research Center for Digestive Diseases, Kunming
| | - Guobao Wang
- Department of endoscopy, Sun Yat-sen University Cancer Center,Guangzhou
| | - Hui Hou
- Department of Gastroenterology, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi
| | - Xiaoxi Huang
- Department of Gastroenterology, Haikou People’s Hospital, Haikou
| | - Wenjie Kong
- Department of Gastroenterology, People’s Hospital of Xinjiang Autonomous Region, Urumqi
| | - Xiaojuan Jin
- Department of Gastroenterology, Suining Central Hospital, Suining, People’s Republic of China
| | - Zhen Ding
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
- Department of Endoscopy Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou
| | - Rong Lin
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
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Auffret V, Castel A, Juette T, Finck C. Residual volume of extruded disc material and residual spinal cord compression measured on postoperative MRI do not predict neurological outcomes in dogs following decompressive surgery for thoracolumbar intervertebral disc extrusion. Vet Radiol Ultrasound 2024; 65:76-86. [PMID: 38183621 DOI: 10.1111/vru.13325] [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: 05/29/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 01/08/2024] Open
Abstract
Published studies on the validity of using quantitative MRI measures of pre- and postoperative spinal cord (SC) compression as prognostic indicators for dogs undergoing surgery for intervertebral disc extrusion (IVDE) are currently limited. The aim of this retrospective analytical study was to describe the volume of postoperative residual extradural material (VREM) and the ratio of the cross-sectional area (CSA) of maximum SC compression to the CSA of SC in a compression-free intervertebral space as MRI measures of preoperative and postoperative compression (residual spinal cord compression, RSCC), and to compare these measures between the neurological outcome in a group of dogs. Inclusion criteria were dogs that underwent surgery for thoracolumbar IVDE, were imaged pre- and immediately postoperatively by MRI, and had a neurological follow-up examination 2 to 5 weeks postoperatively. Two blinded observers independently performed measurements in pre- and postoperative MRI studies. Dogs were classified into positive outcome (PO) and negative outcome (NO) groups based on follow-up neurologic examination scores. Seventeen dogs were included (12 PO, 5 NO). Interobserver agreement for MRI measurements was good to excellent (ICCs: 0.76-0.97). The prevalence of residual extradural material in postoperative MRI studies was 100%. No significant differences in mean preoperative SC compression, mean RSCC, mean SC decompression, or VREM were found between outcome groups (P = .25; P = .28; P = .91, P = .98). In conclusion, neither postoperative VREM nor RSCC could predict successful neurological outcomes.
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Affiliation(s)
- Vincent Auffret
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Quebec, Canada
| | - Aude Castel
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Quebec, Canada
| | - Tristan Juette
- Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Quebec, Canada
| | - Cyrielle Finck
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Quebec, Canada
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157
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Lehner GM, Gockeln L, Naber BM, Thamm JR, Schuh S, Duttler G, Rottenkolber A, Hartmann D, Kramer F, Welzel J. Differences in the annotation between facial images and videos for training an artificial intelligence for skin type determination. Skin Res Technol 2024; 30:e13632. [PMID: 38407411 PMCID: PMC10895547 DOI: 10.1111/srt.13632] [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: 09/06/2023] [Accepted: 01/04/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND The Grand-AID research project, consisting of GRANDEL-The Beautyness Company, the dermatology department of Augsburg University Hospital and the Chair of IT Infrastructure for Translational Medical Research at Augsburg University, is currently researching the development of a digital skin consultation tool that uses artificial intelligence (AI) to analyze the user's skin and ultimately perform a personalized skin analysis and a customized skin care routine. Training the AI requires annotation of various skin features on facial images. The central question is whether videos are better suited than static images for assessing dynamic parameters such as wrinkles and elasticity. For this purpose, a pilot study was carried out in which the annotations on images and videos were compared. MATERIALS AND METHODS Standardized image sequences as well as a video with facial expressions were taken from 25 healthy volunteers. Four raters with dermatological expertise annotated eight features (wrinkles, redness, shine, pores, pigmentation spots, dark circles, skin sagging, and blemished skin) with a semi-quantitative and a linear scale in a cross-over design to evaluate differences between the image modalities and between the raters. RESULTS In the videos, most parameters tended to be assessed with higher scores than in the images, and in some cases significantly. Furthermore, there were significant differences between the raters. CONCLUSION The present study shows significant differences between the two evaluation methods using image or video analysis. In addition, the evaluation of the skin analysis depends on subjective criteria. Therefore, when training the AI, we recommend regular training of the annotating individuals and cross-validation of the annotation.
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Affiliation(s)
- Gabriele Maria Lehner
- Department of Dermatology and AllergologyUniversity Hospital AugsburgAugsburgGermany
| | - Laura Gockeln
- Department of Dermatology and AllergologyUniversity Hospital AugsburgAugsburgGermany
| | - Bettina Marie Naber
- Department of Dermatology and AllergologyUniversity Hospital AugsburgAugsburgGermany
| | - Janis Raphael Thamm
- Department of Dermatology and AllergologyUniversity Hospital AugsburgAugsburgGermany
| | - Sandra Schuh
- Department of Dermatology and AllergologyUniversity Hospital AugsburgAugsburgGermany
| | | | | | - Dennis Hartmann
- IT Infrastructure for Translational Medical ResearchUniversity of AugsburgAugsburgGermany
| | - Frank Kramer
- IT Infrastructure for Translational Medical ResearchUniversity of AugsburgAugsburgGermany
| | - Julia Welzel
- Department of Dermatology and AllergologyUniversity Hospital AugsburgAugsburgGermany
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158
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Jelti O, El Alaoui O, Lachkar A, Abdeljaouad N, Yacoubi H. Primary Hydatid Cyst of the Trapezius Muscle: An Unusual Location and Review of the Literature. Cureus 2024; 16:e56141. [PMID: 38618455 PMCID: PMC11015881 DOI: 10.7759/cureus.56141] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2024] [Indexed: 04/16/2024] Open
Abstract
Hydatidosis is a cosmopolitan anthropozoonosis common to humans and many mammals, caused by the development in the body of a dog tapeworm called Echinococcus granulosus. As accidental intermediate hosts, humans contract the infection either directly through contact with dogs or indirectly by ingesting contaminated food. They represent an epidemiological dead-end. Hydatid cysts are typically associated with the liver and lungs and, more rarely, with bones, the brain, eyes, heart, kidneys, and spleen. We present an unusual case of a hydatid cyst located in the trapezius muscle of a 76-year-old woman. Clinical, biological, and radiological data allow us to evoke the diagnosis and avoid an inopportune puncture. Treatment was exclusively surgical, with the removal of the cyst without cyst breach.
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Affiliation(s)
- Ousama Jelti
- Department of Orthopedics and Traumatology, Mohammed VI University Hospital, Oujda, MAR
- Faculty of Medicine and Pharmacy, Mohammed First University, Oujda, MAR
| | - Oussama El Alaoui
- Department of Orthopedics and Traumatology, Centre Hospitalier Universitaire (CHU) Mohammed VI, Oujda, MAR
- Faculty of Medicine and Pharmacy, Mohammed First University, Oujda, MAR
| | - Adnane Lachkar
- Department of Orthopedics and Traumatology, Mohammed VI University Hospital, Oujda, MAR
- Faculty of Medicine and Pharmacy, Mohammed First University, Oujda, MAR
| | - Najib Abdeljaouad
- Department of Orthopedics and Traumatology, Mohammed VI University Hospital, Oujda, MAR
- Faculty of Medicine and Pharmacy, Mohammed First University, Oujda, MAR
| | - Hicham Yacoubi
- Department of Orthopedics and Traumatology, Mohammed VI University Hospital, Oujda, MAR
- Faculty of Medicine and Pharmacy, Mohammed First University, Oujda, MAR
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159
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Grayson VS, Couldwell MW, Shekhawat D, Chaiyamoon A, Cardona JJ, Keshavarzi S, Iwanaga J, Dumont AS, Tubbs RS. L5 spondylolysis: Anatomical study comparing healed and unhealed lesions. Clin Anat 2024; 37:178-184. [PMID: 37466154 DOI: 10.1002/ca.24094] [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: 06/02/2023] [Revised: 06/30/2023] [Accepted: 07/02/2023] [Indexed: 07/20/2023]
Abstract
The anatomy and pathogenesis of spondylolysis has been widely studied; however, the microanatomy of spondylolysis of the lumbar vertebra has not been well described. Therefore, we aim to better elucidate this anatomy. Twenty dry bone specimens of healed and unhealed spondylolysis of the L5 vertebra were collected from human skeletal remains. Twelve L5 vertebrae were examples of unhealed spondylolysis and eight specimens exhibited a healed (i.e., bony fusion of the lesion) spondylolysis lesion. The specimens underwent macro and microanatomical analysis followed by CT and microCT imaging. Finally, selected healed and unhealed lesions were submitted for histological analysis using Mason Trichrome staining. The pars interarticularis of two L5 vertebrae without signs of healed/unhealed spondylolysis were evaluated histologically as controls. Of the 12 unhealed L5 pars defects, three were unilateral on left side. Of the eight healed pars defects, all were unilateral and seven of these were on left sides. One unilateral pars defect also had spina bifida occulta. Both on imaging and histological analysis, healed pars defects were only so superficially and not at deeper levels. Histologically, unhealed edges were made up of dense cortical bone while healed edges were made up primarily of trabecular bone. Based on our anatomical findings, the so-called healed spondylolysis lesions, although externally fused, are not thoroughly fused internally. Moreover, the anterior and posterior edges of the unhealed spondylosysis lesions are irregular and show signs of long-term disarticulation. Taken together, these data suggest that such 'healed' lesions might not be as stable as the normal L5 pars interarticularis.
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Affiliation(s)
| | | | - Devendra Shekhawat
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Arada Chaiyamoon
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Juan J Cardona
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Sassan Keshavarzi
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Joe Iwanaga
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Department of Neurology, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Aaron S Dumont
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - R Shane Tubbs
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Department of Neurology, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Department of Structural & Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Department of Anatomical Sciences, St. George's University, St. George's, Grenada
- Department of Neurosurgery, Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, Louisiana, USA
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160
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Moshnikova A, DuPont M, Iraca M, Klumpp C, Visca H, Allababidi D, Pelzer P, Engelman DM, Andreev OA, Reshetnyak YK. Targeted intracellular delivery of dimeric STINGa by two pHLIP peptides for treatment of solid tumors. Front Pharmacol 2024; 15:1346756. [PMID: 38495104 PMCID: PMC10940318 DOI: 10.3389/fphar.2024.1346756] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/13/2024] [Indexed: 03/19/2024] Open
Abstract
Introduction: We have developed a delivery approach that uses two pHLIP peptides that collaborate in the targeted intracellular delivery of a single payload, dimeric STINGa (dMSA). Methods: dMSA was conjugated with two pHLIP peptides via S-S cleavable self-immolating linkers to form 2pHLIP-dMSA. Results: Biophysical studies were carried out to confirm pH-triggered interactions of the 2pHLIP-dMSA with membrane lipid bilayers. The kinetics of linker self-immolation and dMSA release, the pharmacokinetics, the binding to plasma proteins, the stability of the agent in plasma, the targeting and resulting cytokine activation in tumors, and the biodistribution of the construct was investigated. This is the first study demonstrating that combining the energy of the membrane-associated folding of two pHLIPs can be utilized to enhance the targeted intracellular delivery of large therapeutic cargo payloads. Discussion: Linking two pHLIPs to the cargo extends blood half-life, and targeted delivery of dimeric STINGa induces tumor eradication and the development of robust anti-cancer immunity.
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Affiliation(s)
- Anna Moshnikova
- Physics Department, University of Rhode Island, Kingston, RI, United States
| | - Michael DuPont
- Physics Department, University of Rhode Island, Kingston, RI, United States
| | - Marissa Iraca
- Physics Department, University of Rhode Island, Kingston, RI, United States
| | - Craig Klumpp
- Physics Department, University of Rhode Island, Kingston, RI, United States
| | - Hannah Visca
- Physics Department, University of Rhode Island, Kingston, RI, United States
| | - Dana Allababidi
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI, United States
| | - Phoebe Pelzer
- Physics Department, University of Rhode Island, Kingston, RI, United States
| | - Donald M. Engelman
- Molecular Biophysics and Biochemistry Department, New Haven, CT, United States
| | - Oleg A. Andreev
- Physics Department, University of Rhode Island, Kingston, RI, United States
| | - Yana K. Reshetnyak
- Physics Department, University of Rhode Island, Kingston, RI, United States
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161
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Shcharbin D, Zhogla V, Abashkin V, Gao Y, Majoral JP, Mignani S, Shen M, Bryszewska M, Shi X. Recent advances in multifunctional dendrimer-based complexes for cancer treatment. Wiley Interdiscip Rev Nanomed Nanobiotechnol 2024; 16:e1951. [PMID: 38456205 DOI: 10.1002/wnan.1951] [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: 08/29/2023] [Revised: 01/29/2024] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
The application of nanotechnology in biological and medical fields have resulted in the creation of new devices, supramolecular systems, structures, complexes, and composites. Dendrimers are relatively new nanotechnological polymers with unique features; they are globular in shape, with a topological structure formed by monomeric subunit branches diverging to the sides from the central nucleus. This review analyzes the main features of dendrimers and their applications in biology and medicine regarding cancer treatment. Dendrimers have applications that include drug and gene carriers, antioxidant agents, imaging agents, and adjuvants, but importantly, dendrimers can create complex nanosized constructions that combine features such as drug/gene carriers and imaging agents. Dendrimer-based nanosystems include different metals that enhance oxidative stress, polyethylene glycol to provide biosafety, an imaging agent (a fluorescent, radioactive, magnetic resonance imaging probe), a drug or/and nucleic acid that provides a single or dual action on cells or tissues. One of major benefit of dendrimers is their easy release from the body (in contrast to metal nanoparticles, fullerenes, and carbon nanotubes), allowing the creation of biosafe constructions. Some dendrimers are already clinically approved and are being used as drugs, but many nanocomplexes are currently being studied for clinical practice. In summary, dendrimers are very useful tool in the creation of complex nanoconstructions for personalized nanomedicine. This article is categorized under: Diagnostic Tools > Diagnostic Nanodevices Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Viktoria Zhogla
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Viktar Abashkin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Yue Gao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai, China
| | - Jean-Pierre Majoral
- Laboratoire de Chimie de Coordination du CNRS, Toulouse, France
- Université Toulouse, Toulouse, France
| | - Serge Mignani
- Centro de Química da Madeira (CQM), MMRG, Universidade da Madeira, Campus Universitário da Penteada, Funchal, Portugal
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai, China
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai, China
- Centro de Química da Madeira (CQM), MMRG, Universidade da Madeira, Campus Universitário da Penteada, Funchal, Portugal
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162
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Dantkale KS, Agrawal M. A Comprehensive Review of the Diagnostic Landscape of Endometriosis: Assessing Tools, Uncovering Strengths, and Acknowledging Limitations. Cureus 2024; 16:e56978. [PMID: 38665720 PMCID: PMC11045176 DOI: 10.7759/cureus.56978] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Endometriosis is a prevalent yet often underdiagnosed condition characterized by the presence of endometrial-like tissue outside the uterus, leading to significant morbidity and impaired quality of life. A timely and accurate diagnosis of endometriosis is essential for effective management and improved patient outcomes. This review provides a comprehensive overview of the current diagnostic landscape of endometriosis, including clinical evaluation, imaging modalities, biomarkers, and laparoscopy. The strengths and limitations of each diagnostic approach are critically evaluated, alongside challenges such as delayed diagnosis and misinterpretation of findings. The review emphasizes the importance of multidisciplinary collaboration, standardized diagnostic protocols, and ongoing research to enhance diagnostic accuracy and facilitate early intervention. By addressing these challenges and leveraging emerging technologies, healthcare professionals can improve the diagnosis and management of endometriosis, ultimately enhancing the well-being of affected individuals.
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Affiliation(s)
- Ketki S Dantkale
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Manjusha Agrawal
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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163
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Koneru M, Shaikh HA, Tonetti DA, Siegler JE, Khalife J, Thomas AJ, Jovin TG, Mossop CM. Early Experience With Artificial Intelligence Software to Detect Intracranial Occlusive Stroke in Trauma Patients. Cureus 2024; 16:e57084. [PMID: 38681375 PMCID: PMC11052925 DOI: 10.7759/cureus.57084] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2024] [Indexed: 05/01/2024] Open
Abstract
Objective Identifying ischemic stroke is a diagnostic challenge in the trauma subpopulation. We describe our early experience with artificial intelligence-assisted image analysis software for automatically identifying acute ischemic stroke in trauma patients. Methods Patients were retrospectively screened for (i) admission to the trauma service at a level one trauma center between 2020 and 2022, (ii) radiologist-confirmed intracranial occlusion, (iii) occlusion identified on computed tomography angiography performed within 24 hours of admission, (iv) no intracranial hemorrhage, and (v) contemporaneous analysis with the large vessel occlusion (LVO) detection program. Baseline characteristics, stroke detection, response-activation, and outcome data were summarized. Results Of 9893 trauma patients admitted, 88 (0.89%) patients had a cerebral stroke diagnosis, of which 10 patients (10/88; 11.4%) met inclusion criteria. Most patients were admitted following a fall (8/10; 80%). Six (6/10; 60.0%) patients had LVOs. The program correctly detected 83.3% (5/6) of patients, and these patients were triaged in less than one hour from arrival on average. The program did not falsely identify non-LVOs as LVOs for any patients. Conclusions Identifying adjunct tools to aid timely identification and treatment of ischemic stroke in trauma patients is necessary to increase the chances for meaningful neurological recovery. Our early experience exhibited potential for using automated software to aid occlusion identification and subsequent stroke team mobilization. Future studies in larger cohorts will expand upon these preliminary findings to establish the accuracy and clinical benefit of automated stroke detection tool integration for the trauma population.
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Affiliation(s)
- Manisha Koneru
- Department of Neurointerventional Surgery, Cooper Medical School of Rowan University, Camden, USA
| | - Hamza A Shaikh
- Department of Neurointerventional Surgery, Cooper University Health Care, Camden, USA
| | - Daniel A Tonetti
- Department of Neurosurgery, Cooper University Health Care, Camden, USA
| | - James E Siegler
- Department of Neurology, Cooper University Health Care, Camden, USA
- Department of Neurology, University of Chicago Medicine, Chicago, USA
| | - Jane Khalife
- Department of Neurology, Cooper University Health Care, Camden, USA
| | - Ajith J Thomas
- Department of Neurosurgery, Cooper University Health Care, Camden, USA
| | - Tudor G Jovin
- Department of Neurology, Cooper University Health Care, Camden, USA
| | - Corey M Mossop
- Department of Neurosurgery, Cooper University Health Care, Camden, USA
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164
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Pandya BU, Grinton M, Mandelcorn ED, Felfeli T. RETINAL OPTICAL COHERENCE TOMOGRAPHY IMAGING BIOMARKERS: A Review of the Literature. Retina 2024; 44:369-380. [PMID: 37903455 PMCID: PMC10885864 DOI: 10.1097/iae.0000000000003974] [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: 10/02/2023] [Accepted: 10/19/2023] [Indexed: 11/01/2023]
Abstract
PURPOSE The aim of this literature review was to summarize novel optical coherence tomography (OCT) imaging biomarkers that have recently been described in the literature and are frequently encountered clinically. METHODS The literature was reviewed to identify novel OCT biomarkers reported to date. A descriptive summary of all terms and representative illustrations were provided to highlight the most relevant features. RESULTS Thirty-seven OCT terminologies were identified. The vitreomacular interface disorder group included the four stages of epiretinal membrane, macular pseudohole, tractional lamellar hole (LH), degenerative LH, cotton ball sign, and foveal crack sign. The age-related macular degeneration group included outer retinal tubulation, multilayered pigment epithelial detachment, prechoroidal cleft, onion sign, double-layer sign, complete outer retinal atrophy, complete retinal pigment epithelium and outer retinal atrophy, and reticular pseudodrusen. The uveitic disorder group consisted of bacillary layer detachment, syphilis placoid, rain-cloud sign, and pitchfork sign. The disorders relating to the toxicity group included flying saucer sign and mitogen-activated protein kinase (MEK) inhibitor-associated retinopathy. The disorders associated with the systemic condition group included choroidal nodules and needle sign. The pachychoroid spectrum group included pachychoroid and brush border pattern. The vascular disorder group included pearl necklace sign, diffuse retinal thickening, disorganization of retinal inner layers, inner nuclear layer microcysts, hyperreflective retinal spots, paracentral acute middle maculopathy, and acute macular neuroretinopathy. The miscellaneous group included omega sign (ω), macular telangiectasia (type 2), and omega sign (Ω). CONCLUSIONS Thirty-seven OCT terminologies were summarized, and detailed illustrations consolidating the features of each biomarker were included. A nuanced understanding of OCT biomarkers and their clinical significance is essential because of their predictive and prognostic value.
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Affiliation(s)
- Bhadra U. Pandya
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Michael Grinton
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
- Department of Ophthalmology, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Efrem D. Mandelcorn
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
- Department of Ophthalmology, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Tina Felfeli
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
- The Institute of Health Policy, Management and Evaluation (IHPME), Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; and
- Toronto Health Economics and Technology Assessment (THETA) Collaborative, University Health Network, Toronto, Ontario, Canada
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165
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Demir Ş, Erdal E, Bagriyanik HA. Imaging of Isolated Exosomes by Correlative Microscopy. J Histochem Cytochem 2024; 72:149-156. [PMID: 38400717 PMCID: PMC10956441 DOI: 10.1369/00221554241233346] [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] [Indexed: 02/26/2024] Open
Abstract
Correlative microscopy is a sophisticated imaging technique that combines optical and electron microscopes, with the most common approach being the integration of light microscopy and electron microscopy, known as correlative light and electron microscopy (CLEM). While CLEM provides a comprehensive view of biological samples, it presents a significant challenge in sample preparation due to the distinct processes involved in each technique. Striking a balance between these methods is crucial. Despite numerous approaches, achieving seamless imaging with CLEM remains a complex task. Exosomes, nanovesicles ranging from 30 to 150 nm in size, are enclosed by a lipid bilayer and released by various cell types. Visualizing exosomes poses difficulties due to their small size and minimal electric charge. However, imaging exosomes at high resolution offers a direct method to understand their morphology and functions. In this study, we evaluated exosome imaging with CLEM using a combination of confocal, transmission electron microscope, and scanning electron microscope (SEM). In addition, we conducted a comparative analysis of these two techniques, evaluating their suitability and efficiency in imaging nanoscale structures. In this study, we found that confocal-SEM correlation is more applicable for imaging exosomes. Moreover, we observed that exosomes were found in clusters in confocal-SEM correlation.
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Affiliation(s)
- Şeyda Demir
- Department of Histology and Embryology, Faculty of Medicine
- Department of Histology and Embryology, Health Science Institute
| | - Esra Erdal
- Department of Medical Biology and Genetics, Faculty of Medicine
- Dokuz Eylul University, Izmir, Türkiye, and Izmir Biomedicine and Genome Center, 35340 Izmir, Türkiye
| | - Hüsnü Alper Bagriyanik
- Department of Histology and Embryology, Faculty of Medicine
- Department of Histology and Embryology, Health Science Institute
- Dokuz Eylul University, Izmir, Türkiye, and Izmir Biomedicine and Genome Center, 35340 Izmir, Türkiye
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166
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Kajita H, Tanaka I, Komuro H, Nishimaki S, Kusakawa I, Sakamoto K. Efficacy of Cranial Orthosis for Plagiocephaly Based on 2D and 3D Evaluation. Arch Plast Surg 2024; 51:169-181. [PMID: 38596144 PMCID: PMC11001441 DOI: 10.1055/a-2222-1494] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 11/30/2023] [Indexed: 04/11/2024] Open
Abstract
Background With the advent of cranial orthoses as therapeutic medical devices for the treatment of severe positional head deformities in Japan, an increasing number of patients are being treated with them. However, assessing the effectiveness of a treatment is often difficult due to the use of different metrics. This study aimed to evaluate the effectiveness of cranial orthoses for deformational plagiocephaly using two- (2D) and three-dimensional (3D) evaluation metrics. Methods We conducted a retrospective study of infant patients with deformational plagiocephaly who underwent cranial orthosis treatment. We evaluated the severity of deformational plagiocephaly using cranial asymmetry (CA) and the cranial vault asymmetry index (CVAI) as 2D metrics, and anterior and posterior symmetry ratios as 3D metrics. The patients were divided into 24 subgroups based on the initial severity of each outcome and their age at the start of treatment. We analyzed the changes in outcomes and correlations within improvements across the age and severity categories. Results Overall, 1,038 infants were included in this study. The mean CA, CVAI, and anterior and posterior symmetry ratios improved significantly after cranial orthosis treatment. The improvement in each score was greater in patients with more severe initial deformities and in those who underwent treatment at a younger age. Conclusion Cranial orthosis treatment was effective in correcting deformational plagiocephaly in infants, as demonstrated by improvements in both 2D and 3D metrics. Patients with more severe initial deformities and those who underwent treatment at a younger age showed greater improvement.
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Affiliation(s)
- Hiroki Kajita
- Baby's Head Reshaping Clinic in Tokyo, Japan
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Ichiro Tanaka
- Baby's Head Reshaping Clinic in Tokyo, Japan
- Department of Plastic and Reconstructive Surgery, Tokyo Dental College Ichikawa General Hospital, Tokyo, Japan
| | | | - Shigeru Nishimaki
- Baby's Head Reshaping Clinic in Tokyo, Japan
- Department of Pediatrics, Yokohama City University Hospital, Yokohama, Japan
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167
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Kozlov M, Levit E, Husain S, Mardakhaev E. Angioleiomyoma of the Ankle: Case Report and Literature Review of a Rare Benign Soft Tissue Tumor. Cureus 2024; 16:e55647. [PMID: 38586740 PMCID: PMC10996887 DOI: 10.7759/cureus.55647] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2024] [Indexed: 04/09/2024] Open
Abstract
Angioleiomyoma is a benign soft tissue tumor originating in the smooth muscle of blood vessels. It most frequently presents as a painful, free-moving subcutaneous nodule in the lower extremities and is most common in middle-aged women. Angioleiomyoma is rare amongst benign foot neoplasms, and a preoperative diagnosis of angioleiomyoma is rare. We present a case of angioleiomyoma involving the ankle of a 28-year-old female. To prevent patient suffering, we emphasize the importance of an early and accurate diagnosis. Furthermore, we highlight the salient features of angioleiomyoma, which help with the early detection and differentiation of similar malignant variants, including leiomyosarcoma.
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Affiliation(s)
| | - Eyal Levit
- Dermatology, Columbia University Irving Medical Center, New York, USA
| | - Sameera Husain
- Dermatopathology, Columbia University Irving Medical Center, New York, USA
| | - Edward Mardakhaev
- Radiology, Montefiore Medical Center, Wakefield Campus, New York, USA
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168
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Johansson J, Ericsson M, Axelsson J, Bjerkén SA, Virel A, Karalija N. Amphetamine-induced dopamine release in rat: Whole-brain spatiotemporal analysis with [ 11C]raclopride and positron emission tomography. J Cereb Blood Flow Metab 2024; 44:434-445. [PMID: 37882727 PMCID: PMC10870964 DOI: 10.1177/0271678x231210128] [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: 05/25/2023] [Revised: 09/06/2023] [Accepted: 10/01/2023] [Indexed: 10/27/2023]
Abstract
Whole-brain mapping of drug effects are needed to understand the neural underpinnings of drug-related behaviors. Amphetamine administration is associated with robust increases in striatal dopamine (DA) release. Dopaminergic terminals are, however, present across several associative brain regions, which may contribute to behavioral effects of amphetamine. Yet the assessment of DA release has been restricted to a few brain regions of interest. The present work employed positron emission tomography (PET) with [11C]raclopride to investigate regional and temporal characteristics of amphetamine-induced DA release across twenty sessions in adult female Sprague Dawley rats. Amphetamine was injected intravenously (2 mg/kg) to cause displacement of [11C]raclopride binding from DA D2-like receptors, assessed using temporally sensitive pharmacokinetic PET model (lp-ntPET). We show amphetamine-induced [11C]raclopride displacement in the basal ganglia, and no changes following saline injections. Peak occupancy was highest in nucleus accumbens, followed by caudate-putamen and globus pallidus. Importantly, significant amphetamine-induced displacement was also observed in several extrastriatal regions, and specifically in thalamus, insula, orbitofrontal cortex, and secondary somatosensory area. For these, peak occupancy occurred later and was lower as compared to the striatum. Collectively, these findings demonstrate distinct amphetamine-induced DA responses across the brain, and that [11C]raclopride-PET can be employed to detect such spatiotemporal differences.
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Affiliation(s)
- Jarkko Johansson
- Department of Radiation Sciences, Diagnostic Radiology, Umeå University, Umeå, Sweden
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | | | - Jan Axelsson
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
- Department of Radiation Sciences, Radiation Physics, Umeå University, Umeå, Sweden
| | - Sara af Bjerkén
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
- Department of Clinical Science, Neurosciences, Umeå University, Umeå, Sweden
| | - Ana Virel
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Nina Karalija
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
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169
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Jennings JA, Arts JJ, Abuhussein E, Alt V, Ashton N, Baertl S, Bhattacharyya S, Cain JD, Dintakurthi Y, Ducheyne P, Duffy H, Falconer R, Gautreaux M, Gianotti S, Hamilton JL, Hylen A, van Hoogstraten S, Libos A, Markovics A, Mdingi V, Montgomery EC, Morgenstern M, Obremskey W, Priddy LB, Tate J, Ren Y, Ricciardi B, Tucker LJ, Weeks J, Vanvelk N, Williams D, Xie C, Hickok N, Schwarz EM, Fintan Moriarty T. 2023 International Consensus Meeting on musculoskeletal infection: Summary from the treatment workgroup and consensus on treatment in preclinical models. J Orthop Res 2024; 42:500-511. [PMID: 38069631 DOI: 10.1002/jor.25765] [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: 09/29/2023] [Accepted: 11/28/2023] [Indexed: 01/05/2024]
Abstract
In vitro and in vivo studies are critical for the preclinical efficacy assessment of novel therapies targeting musculoskeletal infections (MSKI). Many preclinical models have been developed and applied as a prelude to evaluating safety and efficacy in human clinical trials. In performing these studies, there is both a requirement for a robust assessment of efficacy, as well as a parallel responsibility to consider the burden on experimental animals used in such studies. Since MSKI is a broad term encompassing infections varying in pathogen, anatomical location, and implants used, there are also a wide range of animal models described modeling these disparate infections. Although some of these variations are required to adequately evaluate specific interventions, there would be enormous value in creating a unified and standardized criteria to animal testing in the treatment of MSKI. The Treatment Workgroup of the 2023 International Consensus Meeting on Musculoskeletal Infection was responsible for questions related to preclinical models for treatment of MSKI. The main objective was to review the literature related to priority questions and estimate consensus opinion after voting. This document presents that process and results for preclinical models related to (1) animal model considerations, (2) outcome measurements, and (3) imaging.
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Affiliation(s)
| | - Jacobus J Arts
- Department of Orthopaedic Surgery, Maastricht University Medical Center, Maastricht, Netherlands
- Department Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Ezzuddin Abuhussein
- Department of Biomedical Engineering, University of Memphis, Memphis, Tennessee, USA
| | - Volker Alt
- Department of Trauma Surgery, University Hospital, Regensburg, Germany
| | - Nicholas Ashton
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Susanne Baertl
- Department of Trauma Surgery, University Hospital, Regensburg, Germany
| | - Sanjib Bhattacharyya
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- XeroThera Inc., Philadelphia, Pennsylvania
| | - Jarrett D Cain
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yogita Dintakurthi
- Department of Biomedical Engineering, University of Memphis, Memphis, Tennessee, USA
| | - Paul Ducheyne
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Hannah Duffy
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Robert Falconer
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Malley Gautreaux
- Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, Mississippi, USA
| | - Sofia Gianotti
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - John L Hamilton
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Annika Hylen
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Sanne van Hoogstraten
- Department of Orthopaedic Surgery, Maastricht University Medical Center, Maastricht, Netherlands
| | - Andres Libos
- Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
- Department of Orthopaedic Surgery, Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - Adrienn Markovics
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | | | - Emily C Montgomery
- Department of Biomedical Engineering, University of Memphis, Memphis, Tennessee, USA
| | - Mario Morgenstern
- Department of Orthopaedic and Trauma Surgery, University Hospital Basel, Basel, Switzerland
| | - William Obremskey
- Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Lauren B Priddy
- Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, Mississippi, USA
| | - Jermiah Tate
- Department of Biomedical Engineering, University of Memphis, Memphis, Tennessee, USA
| | - Youliang Ren
- Department of Orthopaedics, University of Rochester Medical Center, Rochester, New York, USA
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
| | - Benjamin Ricciardi
- Department of Orthopaedics, University of Rochester Medical Center, Rochester, New York, USA
| | - Luke J Tucker
- Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, Mississippi, USA
| | - Jason Weeks
- Department of Orthopaedics, University of Rochester Medical Center, Rochester, New York, USA
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
| | - Niels Vanvelk
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Dustin Williams
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
- Department of Pathology, University of Utah, Salt Lake City, Utah, USA
- Department of Physical Medicine and Rehabilitation, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Chao Xie
- Department of Orthopaedics, University of Rochester Medical Center, Rochester, New York, USA
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
| | - Noreen Hickok
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Edward M Schwarz
- Department of Orthopaedics, University of Rochester Medical Center, Rochester, New York, USA
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
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170
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Benchetrit L, Thomson E, Paz-Lansberg M, Platt MP, Brook CD. Evaluation of narrow-band imaging in the diagnosis of sinonasal inverted papilloma. Int Forum Allergy Rhinol 2024; 14:720-723. [PMID: 37548133 DOI: 10.1002/alr.23251] [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: 04/08/2023] [Revised: 07/22/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
KEY POINTS Narrow-band imaging (NBI) can be used to differentiate benign sinonasal lesions NBI can be used in the preoperative identification of sinonasal inverted papilloma Future studies can focus on NBI for recurrent inverted papilloma and surgical margin guidance.
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Affiliation(s)
- Liliya Benchetrit
- Department of Otolaryngology - Head and Neck Surgery, Boston University School of, Medicine, Boston Medical Center, Boston, Massachusetts, USA
| | - Evan Thomson
- Department of Otolaryngology - Head and Neck Surgery, Boston University School of, Medicine, Boston Medical Center, Boston, Massachusetts, USA
| | - Marianella Paz-Lansberg
- Department of Otolaryngology - Head and Neck Surgery, Boston University School of, Medicine, Boston Medical Center, Boston, Massachusetts, USA
| | - Michael P Platt
- Department of Otolaryngology - Head and Neck Surgery, Boston University School of, Medicine, Boston Medical Center, Boston, Massachusetts, USA
| | - Christopher D Brook
- Department of Otolaryngology - Head and Neck Surgery, Boston University School of, Medicine, Boston Medical Center, Boston, Massachusetts, USA
- Division of Otolaryngology - Head and Neck Surgery, Beth Israel Deaconess Medical Center, Harvard University School of Medicine, Boston, Massachusetts, USA
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171
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Ho G, Gill M, Grant-Kels J, Schwartz RJ, Pellacani G, Gonzalez S, Alessi-Fox C, Guitera P. International expert recommendations on image acquisition for in vivo reflectance confocal microscopy of cutaneous tumors. J Am Acad Dermatol 2024; 90:537-544. [PMID: 37898340 DOI: 10.1016/j.jaad.2023.09.086] [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: 06/19/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND No international recommendations exist for a minimum imaging requirement per lesion using reflectance confocal microscopy (RCM). This may be beneficial given the increasing use of remote RCM interpretation internationally. OBJECTIVE To develop international expert recommendations for image acquisition using tissue-coupled RCM for diagnosis of cutaneous tumors. METHODS Using a modified Delphi approach, a core group developed the scope and drafted initial recommendations before circulation to a larger group, the Cutaneous Imaging Expert Resource Group of the American Academy of Dermatology. Each review round consisted of a period of open comment, followed by revisions. RESULTS The recommendations were developed after 5 alternating rounds of review among the core group and the Cutaneous Imaging Expert Resource Group. These were divided into subsections of imaging personnel, recommended lesion criteria, clinical and lesion information to be provided, lesion preparation, image acquisition, mosaic cube settings, and additional captures based on lesion characteristics and suspected diagnosis. LIMITATIONS The current recommendations are limited to tissue-coupled RCM for diagnosis of cutaneous tumors. It is one component of the larger picture of quality assurance and will require ongoing review. CONCLUSIONS These recommendations serve as a resource to facilitate quality assurance, economical use of time, accurate diagnosis, and international collaboration.
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Affiliation(s)
- Genevieve Ho
- Melanoma Institute Australia, Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, Australia; Faculty of Medicine and Health, University of New South Wales, Sydney, Australia.
| | - Melissa Gill
- Department of Pathology, State University of New York Downstate Medical Center, New York, New York; Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Jane Grant-Kels
- Department of Dermatology, University of Connecticut School of Medicine, Farmington, Connecticut; Department of Dermatology, University of Florida College of Medicine, Gainesville, Florida
| | - Rodrigo J Schwartz
- Melanoma Institute Australia, Sydney, Australia; Department of Dermatology, Faculty of Medicine, University of Chile, Santiago, Chile
| | | | - Salvador Gonzalez
- Department of Medicine and Medical Specialities, University of Alcalá de Henares, Madrid, Spain
| | | | - Pascale Guitera
- Melanoma Institute Australia, Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, Australia; Sydney Melanoma Diagnostic Centre, Royal Prince Alfred Hospital, Sydney Australia
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172
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Croslow SW, Trinklein TJ, Sweedler JV. Advances in multimodal mass spectrometry for single-cell analysis and imaging enhancement. FEBS Lett 2024; 598:591-601. [PMID: 38243373 PMCID: PMC10963143 DOI: 10.1002/1873-3468.14798] [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: 11/12/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 01/21/2024]
Abstract
Multimodal mass spectrometry (MMS) incorporates an imaging modality with probe-based mass spectrometry (MS) to enable precise, targeted data acquisition and provide additional biological and chemical data not available by MS alone. Two categories of MMS are covered; in the first, an imaging modality guides the MS probe to target individual cells and to reduce acquisition time by automatically defining regions of interest. In the second category, imaging and MS data are coupled in the data analysis pipeline to increase the effective spatial resolution using a higher resolution imaging method, correct for tissue deformation, and incorporate fine morphological features in an MS imaging dataset. Recent methodological and computational developments are covered along with their application to single-cell and imaging analyses.
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Affiliation(s)
- Seth W. Croslow
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Timothy J. Trinklein
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Jonathan V. Sweedler
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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173
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Alghenaim M, Awadh M, Alshafai A, Darwish A. Intestinal Intussusception Complicating an Undiagnosed Burkitt Lymphoma in a Pediatric Arab Patient. Cureus 2024; 16:e55949. [PMID: 38601415 PMCID: PMC11005805 DOI: 10.7759/cureus.55949] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2024] [Indexed: 04/12/2024] Open
Abstract
Burkitt's lymphoma (BL) is considered an aggressive form of a non-Hodgkin B-cell lymphoma, representing less than 5% of all pediatric malignancies and 30% of pediatric lymphomas. However, intestinal BL may present as a lead point, causing intussusception. Surgery continues to be the gold standard for the treatment and identification of localized tumors to ensure complete removal with proper margin. In this report, we describe a hidden BL presenting as intestinal intussusception in an eight-year-old Arab boy. A computed tomography (CT) scan of the abdomen revealed an ileoileal intussusception with multiple enlarged lymph nodes. The report discusses the role of histopathology, supported by immunohistochemistry studies, in establishing the diagnosis. It also covers the significance of proper laparoscopic surgery and chemotherapy in the management of this child.
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Affiliation(s)
- Marwa Alghenaim
- Department of Pathology and Laboratory Medicine, Bahrain Defense Force (BDF) Royal Medical Services, Riffa, BHR
| | - Mohamed Awadh
- Department of Pathology and Laboratory Medicine, Bahrain Defense Force (BDF) Royal Medical Services, Riffa, BHR
| | - Abdulrahman Alshafai
- Department of Pediatric Surgery, Bahrain Defense Force (BDF) Royal Medical Services, Riffa, BHR
| | - Abdulla Darwish
- Department of Pathology and Laboratory Medicine, Bahrain Defense Force (BDF) Royal Medical Services, Riffa, BHR
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174
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Schindler M, Endlich N. Zebrafish as a model for podocyte research. Am J Physiol Renal Physiol 2024; 326:F369-F381. [PMID: 38205541 DOI: 10.1152/ajprenal.00335.2023] [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: 10/18/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Podocytes, specialized postmitotic cells, are central players in various kidney-related diseases. Zebrafish have become a valuable model system for studying podocyte biology because they are genetically easy to manipulate, transparent, and their glomerular structure is similar to that of mammals. This review provides an overview of the knowledge of podocyte biology in zebrafish larvae, with particular focus on their essential contribution to understanding the mechanisms that underlie kidney diseases as well as supporting drug development. In addition, special attention is given to advances in live-imaging techniques allowing the observation of dynamic processes, including podocyte motility, podocyte process behavior, and glomerulus maturation. The review further addresses the functional aspects of podocytes in zebrafish larvae. This includes topics such as glomerular filtration, ultrastructural analyses, and evaluation of podocyte response to nephrotoxic insults. Studies presented in this context have provided important insights into the maintenance and resistance of the glomerular filtration barrier in zebrafish larvae and explored the potential transferability of these findings to mammals such as mice, rats, and most importantly, humans. The recent ability to identify potential therapeutic targets represents a promising new way to identify drugs that could effectively treat podocyte-associated glomerulopathies in humans. In summary, this review gives an overview about the importance of zebrafish as a model for podocyte-related disease and targeted drug development. It also highlights the key role of advanced imaging techniques in transparent zebrafish larvae, improving our understanding of glomerular diseases and the significant potential for translation of these findings to humans.
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Affiliation(s)
- Maximilian Schindler
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
| | - Nicole Endlich
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
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175
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Berni A, Arrigo A, Bianco L, Antropoli A, Saladino A, Mansour AM, Vilela M, Bandello F, Parodi MB. New insights in the multimodal imaging of retinitis pigmentosa. Eur J Ophthalmol 2024; 34:357-366. [PMID: 37113027 PMCID: PMC10898209 DOI: 10.1177/11206721231172863] [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: 01/15/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Abstract
Retinitis pigmentosa (RP) is a group of inherited rod-cone dystrophies, noted for a high genotypical and phenotypical heterogeneity.Traditionally, VA, visual field, and electroretinography have been used to assess RP progression. However, visual acuity and visual field tests are essentially subjective and, especially in the late stages of the disease, are unable to confidently reveal minor progression. Therefore, there is a need for novel examination modalities that rely on quantitative, structural measurements. In this regard, several non-invasive imaging techniques have been studied, including spectral-domain optical coherence tomography, optical coherence tomography angiography, and fundus autofluorescence. By correlating surrogate biomarkers with functional measurements of the disease, these techniques may be able to develop reliable outcome meters that can be used to gain a deeper understanding of the underlying causes of the disease and to assess the effectiveness of therapy even before an actual loss of vision occurs.In this review, we will summarize the recent imaging findings and biomarkers that have been identified in RP patients. Our goal is to provide information that can promptly aid in selecting patients for clinical trials and new gene therapies, monitoring the disease progression, and evaluating treatment outcomes.
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Affiliation(s)
- Alessandro Berni
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Alessandro Arrigo
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Lorenzo Bianco
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Alessio Antropoli
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Andrea Saladino
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ahmad M. Mansour
- Department of Ophthalmology, American University of Beirut, Beirut, Lebanon
| | - Manuel Vilela
- Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
| | - Francesco Bandello
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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176
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Scardigli M, Pásek M, Santini L, Palandri C, Conti E, Crocini C, Campione M, Loew LM, de Vries AAF, Pijnappels DA, Pavone FS, Poggesi C, Cerbai E, Coppini R, Kohl P, Ferrantini C, Sacconi L. Optogenetic confirmation of transverse-tubular membrane excitability in intact cardiac myocytes. J Physiol 2024; 602:791-808. [PMID: 38348881 DOI: 10.1113/jp285202] [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: 06/26/2023] [Accepted: 01/17/2024] [Indexed: 03/09/2024] Open
Abstract
T-tubules (TT) form a complex network of sarcolemmal membrane invaginations, essential for well-co-ordinated excitation-contraction coupling (ECC) and thus homogeneous mechanical activation of cardiomyocytes. ECC is initiated by rapid depolarization of the sarcolemmal membrane. Whether TT membrane depolarization is active (local generation of action potentials; AP) or passive (following depolarization of the outer cell surface sarcolemma; SS) has not been experimentally validated in cardiomyocytes. Based on the assessment of ion flux pathways needed for AP generation, we hypothesize that TT are excitable. We therefore explored TT excitability experimentally, using an all-optical approach to stimulate and record trans-membrane potential changes in TT that were structurally disconnected, and hence electrically insulated, from the SS membrane by transient osmotic shock. Our results establish that cardiomyocyte TT can generate AP. These AP show electrical features that differ substantially from those observed in SS, consistent with differences in the density of ion channels and transporters in the two different membrane domains. We propose that TT-generated AP represent a safety mechanism for TT AP propagation and ECC, which may be particularly relevant in pathophysiological settings where morpho-functional changes reduce the electrical connectivity between SS and TT membranes. KEY POINTS: Cardiomyocytes are characterized by a complex network of membrane invaginations (the T-tubular system) that propagate action potentials to the core of the cell, causing uniform excitation-contraction coupling across the cell. In the present study, we investigated whether the T-tubular system is able to generate action potentials autonomously, rather than following depolarization of the outer cell surface sarcolemma. For this purpose, we developed a fully optical platform to probe and manipulate the electrical dynamics of subcellular membrane domains. Our findings demonstrate that T-tubules are intrinsically excitable, revealing distinct characteristics of self-generated T-tubular action potentials. This active electrical capability would protect cells from voltage drops potentially occurring within the T-tubular network.
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Affiliation(s)
- Marina Scardigli
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Michal Pásek
- Institute of Thermomechanics, Czech Academy of Science, Prague, Czech Republic
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lorenzo Santini
- Department of Neurology, Psychology, Drug Sciences and Child Health, University of Florence, Florence, Italy
| | - Chiara Palandri
- Department of Neurology, Psychology, Drug Sciences and Child Health, University of Florence, Florence, Italy
| | - Emilia Conti
- European Laboratory for Non-Linear Spectroscopy - LENS, Sesto Fiorentino, Italy
- Neuroscience Institute, National Research Council, Pisa, Italy
| | - Claudia Crocini
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Rubner Center for Cardiovascular Metabolic Renal Research (MRC), Deutsches Herzzentrum der Charité (DHZC), Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Marina Campione
- Institute of Neuroscience (IN-CNR) and Department of Biomedical Science, University of Padua, Padua, Italy
| | - Leslie M Loew
- Center for Cell Analysis and Modeling, University of Connecticut, Farmington, CT, USA
| | - Antoine A F de Vries
- Laboratory of Experimental Cardiology, Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Daniël A Pijnappels
- Laboratory of Experimental Cardiology, Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Francesco S Pavone
- European Laboratory for Non-Linear Spectroscopy - LENS, Sesto Fiorentino, Italy
| | - Corrado Poggesi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Elisabetta Cerbai
- Department of Neurology, Psychology, Drug Sciences and Child Health, University of Florence, Florence, Italy
- European Laboratory for Non-Linear Spectroscopy - LENS, Sesto Fiorentino, Italy
| | - Raffaele Coppini
- Department of Neurology, Psychology, Drug Sciences and Child Health, University of Florence, Florence, Italy
| | - Peter Kohl
- Institute for Experimental Cardiovascular Medicine, University Heart Center and Medical Faculty, University of Freiburg, Freiburg, Germany
| | - Cecilia Ferrantini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Leonardo Sacconi
- European Laboratory for Non-Linear Spectroscopy - LENS, Sesto Fiorentino, Italy
- Institute for Experimental Cardiovascular Medicine, University Heart Center and Medical Faculty, University of Freiburg, Freiburg, Germany
- Institute of Clinical Physiology, National Research Council (IFC-CNR), Florence, Italy
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177
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Sutton SR, Taniguchi AN, Nguyen SA, Soler ZM, Schlosser RJ. Direct impact of the COVID-19 pandemic on rhinology practice. Int Forum Allergy Rhinol 2024; 14:738-740. [PMID: 37482946 DOI: 10.1002/alr.23245] [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: 05/31/2023] [Revised: 07/10/2023] [Accepted: 07/19/2023] [Indexed: 07/25/2023]
Abstract
KEY POINTS The pandemic caused an increase in computed tomography imaging in patients with sinusitis, which persisted post-COVID. Nasal endoscopies significantly decreased during COVID but returned to pre-COVID levels in 2022. The management of cerebrospinal fluid leaks, tumors, and orbital pathology was not impacted by the pandemic.
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Affiliation(s)
- Sarah R Sutton
- Department of Otolaryngology, Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
- Reno School of Medicine, University of Nevada, Reno, Nevada, USA
| | - April N Taniguchi
- Department of Otolaryngology, Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Shaun A Nguyen
- Department of Otolaryngology, Head and Neck Surgery, 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
| | - Rodney J Schlosser
- Department of Otolaryngology, Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
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178
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Gow KW, Lautz TB, Malek MM, Cost NG, Newman EA, Dasgupta R, Christison-Lagay ER, Tiao GM, Davidoff AM. Children's Oncology Group's 2023 blueprint for research: Surgery. Pediatr Blood Cancer 2024; 71:e30766. [PMID: 37950538 PMCID: PMC10872730 DOI: 10.1002/pbc.30766] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
Surgery plays a crucial role in the treatment of children with solid malignancies. A well-conducted operation is often essential for cure. Collaboration with the primary care team is important for determining if and when surgery should be performed, and if performed, an operation must be done in accordance with well-established standards. The long-term consequences of surgery also need to be considered. Indications and objectives for a procedure vary. Providing education and developing and analyzing new research protocols that include aims relevant to surgery are key objectives of the Surgery Discipline of the Children's Oncology Group. The critical evaluation of emerging technologies to ensure safe, effective procedures is another key objective. Through research, education, and advancing technologies, the role of the pediatric surgeon in the multidisciplinary care of children with solid malignancies will continue to evolve.
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Affiliation(s)
- Kenneth W. Gow
- Division of General & Thoracic Surgery, Seattle Children’s Hospital, Seattle, Washington, USA
| | - Timothy B. Lautz
- Department of Pediatric Surgery, Lurie Children’s Hospital of Chicago, Northwestern University School of Medicine, Chicago, Illinois, USA
| | - Marcus M. Malek
- Division of Pediatric General and Thoracic Surgery, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Nicholas G. Cost
- Department of Surgery, Division of Urology and the Surgical Oncology Program, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Erika A. Newman
- Department of Surgery, Mott Children’s Hospital, University of Michigan, Ann Arbor, Michigan, USA
| | - Roshni Dasgupta
- Division of Pediatric General and Thoracic Surgery, Cincinnati Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, USA
| | - Emily R. Christison-Lagay
- Division of Pediatric Surgery, Yale School of Medicine, Yale-New Haven Children’s Hospital, New Haven, Connecticut, USA
| | - Gregory M. Tiao
- Division of Pediatric General and Thoracic Surgery, Cincinnati Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, USA
| | - Andrew M. Davidoff
- Department of Surgery, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
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179
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Minnig MCC, Golightly YM, Nelson AE. Epidemiology of osteoarthritis: literature update 2022-2023. Curr Opin Rheumatol 2024; 36:108-112. [PMID: 38240280 PMCID: PMC10965245 DOI: 10.1097/bor.0000000000000985] [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] [Indexed: 01/23/2024]
Abstract
PURPOSE OF REVIEW This review highlights recently published studies on osteoarthritis (OA) epidemiology, including topics related to understudied populations and joints, imaging, and advancements in artificial intelligence (AI) methods. RECENT FINDINGS Contemporary research has improved our understanding of the burden of OA in typically understudied regions, including ethnic and racial minorities in high-income countries, the Middle East and North Africa (MENA) and Latin America. Efforts have also been made to explore the burden and risk factors in OA in previously understudied joints, such as the hand, foot, and ankle. Advancements in OA imaging techniques have occurred alongside the developments of AI methods aiming to predict disease phenotypes, progression, and outcomes. SUMMARY Continuing efforts to expand our knowledge around OA in understudied populations will allow for the creation of targeted and specific interventions and inform policy changes aimed at reducing disease burden in these groups. The burden and disability associated with OA is notable in understudied joints, warranting further research efforts that may lead to effective therapeutic options. AI methods show promising results of predicting OA phenotypes and progression, which also may encourage the creation of targeted disease modifying OA drugs (DMOADs).
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Affiliation(s)
- Mary Catherine C. Minnig
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Yvonne M. Golightly
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, North Carolina, USA
- College of Allied Health Professions, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Amanda E. Nelson
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, North Carolina, USA
- Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
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180
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Periferakis A, Periferakis AT, Troumpata L, Dragosloveanu S, Timofticiuc IA, Georgatos-Garcia S, Scheau AE, Periferakis K, Caruntu A, Badarau IA, Scheau C, Caruntu C. Use of Biomaterials in 3D Printing as a Solution to Microbial Infections in Arthroplasty and Osseous Reconstruction. Biomimetics (Basel) 2024; 9:154. [PMID: 38534839 DOI: 10.3390/biomimetics9030154] [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: 01/26/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/28/2024] Open
Abstract
The incidence of microbial infections in orthopedic prosthetic surgeries is a perennial problem that increases morbidity and mortality, representing one of the major complications of such medical interventions. The emergence of novel technologies, especially 3D printing, represents a promising avenue of development for reducing the risk of such eventualities. There are already a host of biomaterials, suitable for 3D printing, that are being tested for antimicrobial properties when they are coated with bioactive compounds, such as antibiotics, or combined with hydrogels with antimicrobial and antioxidant properties, such as chitosan and metal nanoparticles, among others. The materials discussed in the context of this paper comprise beta-tricalcium phosphate (β-TCP), biphasic calcium phosphate (BCP), hydroxyapatite, lithium disilicate glass, polyetheretherketone (PEEK), poly(propylene fumarate) (PPF), poly(trimethylene carbonate) (PTMC), and zirconia. While the recent research results are promising, further development is required to address the increasing antibiotic resistance exhibited by several common pathogens, the potential for fungal infections, and the potential toxicity of some metal nanoparticles. Other solutions, like the incorporation of phytochemicals, should also be explored. Incorporating artificial intelligence (AI) in the development of certain orthopedic implants and the potential use of AI against bacterial infections might represent viable solutions to these problems. Finally, there are some legal considerations associated with the use of biomaterials and the widespread use of 3D printing, which must be taken into account.
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Affiliation(s)
- Argyrios Periferakis
- Department of Physiology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Akadimia of Ancient Greek and Traditional Chinese Medicine, 16675 Athens, Greece
- Elkyda, Research & Education Centre of Charismatheia, 17675 Athens, Greece
| | - Aristodemos-Theodoros Periferakis
- Department of Physiology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Elkyda, Research & Education Centre of Charismatheia, 17675 Athens, Greece
| | - Lamprini Troumpata
- Department of Physiology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Serban Dragosloveanu
- Department of Orthopaedics and Traumatology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Orthopaedics, "Foisor" Clinical Hospital of Orthopaedics, Traumatology and Osteoarticular TB, 021382 Bucharest, Romania
| | - Iosif-Aliodor Timofticiuc
- Department of Physiology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Spyrangelos Georgatos-Garcia
- Tilburg Institute for Law, Technology, and Society (TILT), Tilburg University, 5037 DE Tilburg, The Netherlands
- Corvers Greece IKE, 15124 Athens, Greece
| | - Andreea-Elena Scheau
- Department of Radiology and Medical Imaging, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Konstantinos Periferakis
- Akadimia of Ancient Greek and Traditional Chinese Medicine, 16675 Athens, Greece
- Pan-Hellenic Organization of Educational Programs (P.O.E.P.), 17236 Athens, Greece
| | - Ana Caruntu
- Department of Oral and Maxillofacial Surgery, "Carol Davila" Central Military Emergency Hospital, 010825 Bucharest, Romania
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Titu Maiorescu University, 031593 Bucharest, Romania
| | - Ioana Anca Badarau
- Department of Physiology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Cristian Scheau
- Department of Physiology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Radiology and Medical Imaging, "Foisor" Clinical Hospital of Orthopaedics, Traumatology and Osteoarticular TB, 021382 Bucharest, Romania
| | - Constantin Caruntu
- Department of Physiology, The "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Dermatology, "Prof. N.C. Paulescu" National Institute of Diabetes, Nutrition and Metabolic Diseases, 011233 Bucharest, Romania
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181
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Bolocan VO, Diaconu GF, Secareanu M, Manolescu LSC, Jinga V, Costache MG, Popa GA, Medar C. Renal Sinus Pathologies Depicted by CT Imaging: A Pictorial Review. Cureus 2024; 16:e57087. [PMID: 38681436 PMCID: PMC11052927 DOI: 10.7759/cureus.57087] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2024] [Indexed: 05/01/2024] Open
Abstract
Diverse conditions comprise the spectrum of renal sinus pathologies, which have diagnostic and therapeutic implications for patients. Using CT imaging as a lens, this exhaustive review examines the representation of these pathologies. The article begins with a concise synopsis of renal anatomy and the specialized CT methodologies utilized to achieve excellent visualization. Transformational cell carcinoma, leiomyosarcoma, renal cell carcinoma, multilocular nephroma, and lymphoma are among the tumoral origins of the renal sinus pathologies that are investigated. Further, vascular pathologies including fistulas, hematomas, and aneurysms are included in the discourse, along with parapelvic and peripelvic cysts, and lipomatosis. In addition to urolithiasis and encrusted uretero-pyelitis, the review examines the consequences of metal toxicity and non-neoplastic conditions. With a focus on critical CT imaging findings that aid in the provision of an accurate diagnosis, every pathology is meticulously examined. With the intention of improving clinical decision-making and patient care, this article intends to function as a valuable resource for radiologists, clinicians, and researchers who are engaged in the interpretation and comprehension of renal sinus pathologies.
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Affiliation(s)
- Vlad-Octavian Bolocan
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
| | - Georgian-Florentin Diaconu
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
| | - Mihaela Secareanu
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
| | - Loredana Sabina Cornelia Manolescu
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
| | - Viorel Jinga
- Department of Urology, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
- Department of Urology, Faculty of Medicine, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
- Medical Sciences Section, Academy of Romanian Scientists, Bucharest, ROU
| | - Maria-Glencora Costache
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
| | - Gelu Adrian Popa
- Department of Radiology and Medical Imaging, Clinical Hospital of Emergency "Sf Ioan", Bucharest, ROU
| | - Cosmin Medar
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
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182
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Morton A. Investigating gastrointestinal disorders in pregnancy. Obstet Med 2024; 17:5-12. [PMID: 38660319 PMCID: PMC11037196 DOI: 10.1177/1753495x231206211] [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: 04/13/2023] [Revised: 08/21/2023] [Accepted: 09/20/2023] [Indexed: 04/26/2024] Open
Abstract
This article reviews anatomical and physiological changes and alterations in reference intervals for laboratory tests in healthy pregnancy, pertinent to investigation of the gastrointestinal system. The safety of procedures and radiological investigations relevant to the investigation of gastrointestinal disorders in pregnancy are also reviewed.
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Affiliation(s)
- Adam Morton
- Mater Health, Raymond Terrace, South Brisbane, QLD, 4101, Australia
- Department of Medicine, University of Queensland, Herston, Brisbane, QLD, 4029, Australia
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183
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Oikonomou EK, Holste G, Yuan N, Coppi A, McNamara RL, Haynes N, Vora AN, Velazquez EJ, Li F, Menon V, Kapadia SR, Gill TM, Nadkarni GN, Krumholz HM, Wang Z, Ouyang D, Khera R. A Multimodality Video-Based AI Biomarker For Aortic Stenosis Development And Progression. medRxiv 2024:2023.09.28.23296234. [PMID: 37808685 PMCID: PMC10557799 DOI: 10.1101/2023.09.28.23296234] [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] [Indexed: 10/10/2023]
Abstract
Importance Aortic stenosis (AS) is a major public health challenge with a growing therapeutic landscape, but current biomarkers do not inform personalized screening and follow-up. Objective A video-based artificial intelligence (AI) biomarker (Digital AS Severity index [DASSi]) can detect severe AS using single-view long-axis echocardiography without Doppler. Here, we deploy DASSi to patients with no or mild/moderate AS at baseline to identify AS development and progression. Design Setting and Participants We defined two cohorts of patients without severe AS undergoing echocardiography in the Yale-New Haven Health System (YNHHS) (2015-2021, 4.1[IQR:2.4-5.4] follow-up years) and Cedars-Sinai Medical Center (CSMC) (2018-2019, 3.4[IQR:2.8-3.9] follow-up years). We further developed a novel computational pipeline for the cross-modality translation of DASSi into cardiac magnetic resonance (CMR) imaging in the UK Biobank (2.5[IQR:1.6-3.9] follow-up years). Analyses were performed between August 2023-February 2024. Exposure DASSi (range: 0-1) derived from AI applied to echocardiography and CMR videos. Main Outcomes and Measures Annualized change in peak aortic valve velocity (AV-Vmax) and late (>6 months) aortic valve replacement (AVR). Results A total of 12,599 participants were included in the echocardiographic study (YNHHS: n=8,798, median age of 71 [IQR (interquartile range):60-80] years, 4250 [48.3%] women, and CSMC: n=3,801, 67 [IQR:54-78] years, 1685 [44.3%] women). Higher baseline DASSi was associated with faster progression in AV-Vmax (per 0.1 DASSi increments: YNHHS: +0.033 m/s/year [95%CI:0.028-0.038], n=5,483, and CSMC: +0.082 m/s/year [0.053-0.111], n=1,292), with levels ≥ vs <0.2 linked to a 4-to-5-fold higher AVR risk (715 events in YNHHS; adj.HR 4.97 [95%CI: 2.71-5.82], 56 events in CSMC: 4.04 [0.92-17.7]), independent of age, sex, ethnicity/race, ejection fraction and AV-Vmax. This was reproduced across 45,474 participants (median age 65 [IQR:59-71] years, 23,559 [51.8%] women) undergoing CMR in the UK Biobank (adj.HR 11.4 [95%CI:2.56-50.60] for DASSi ≥vs<0.2). Saliency maps and phenome-wide association studies supported links with traditional cardiovascular risk factors and diastolic dysfunction. Conclusions and Relevance In this cohort study of patients without severe AS undergoing echocardiography or CMR imaging, a new AI-based video biomarker is independently associated with AS development and progression, enabling opportunistic risk stratification across cardiovascular imaging modalities as well as potential application on handheld devices.
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Affiliation(s)
- Evangelos K. Oikonomou
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Gregory Holste
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Neal Yuan
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- Division of Cardiology, San Francisco Veterans Affairs Medical Center, San Francisco, CA, USA
| | - Andreas Coppi
- Center for Outcomes Research and Evaluation, Yale-New Haven Hospital, New Haven, CT, USA
| | - Robert L. McNamara
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Norrisa Haynes
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Amit N. Vora
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Eric J. Velazquez
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Fan Li
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
- Center for Methods in Implementation and Prevention Science, Yale School of Public Health, New Haven, CT, USA
| | - Venu Menon
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Samir R. Kapadia
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Thomas M Gill
- Section of Geriatrics, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Girish N. Nadkarni
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Harlan M. Krumholz
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Center for Outcomes Research and Evaluation, Yale-New Haven Hospital, New Haven, CT, USA
| | - Zhangyang Wang
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA
| | - David Ouyang
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Division of Artificial Intelligence in Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Rohan Khera
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Center for Outcomes Research and Evaluation, Yale-New Haven Hospital, New Haven, CT, USA
- Section of Biomedical Informatics and Data Science, Yale School of Medicine, New Haven, CT
- Section of Health Informatics, Department of Biostatistics, Yale School of Public Health, New Haven, CT
- Associate Editor, JAMA
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184
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Ristow I, Well L, Wiese NJ, Warncke M, Tintelnot J, Karimzadeh A, Koehler D, Adam G, Bannas P, Sauer M. Tumor Response Evaluation Using iRECIST: Feasibility and Reliability of Manual Versus Software-Assisted Assessments. Cancers (Basel) 2024; 16:993. [PMID: 38473353 DOI: 10.3390/cancers16050993] [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: 02/04/2024] [Revised: 02/25/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
OBJECTIVES To compare the feasibility and reliability of manual versus software-assisted assessments of computed tomography scans according to iRECIST in patients undergoing immune-based cancer treatment. METHODS Computed tomography scans of 30 tumor patients undergoing cancer treatment were evaluated by four independent radiologists at baseline (BL) and two follow-ups (FU), resulting in a total of 360 tumor assessments (120 each at BL/FU1/FU2). After image interpretation, tumor burden and response status were either calculated manually or semi-automatically as defined by software, respectively. The reading time, calculated sum of longest diameter (SLD), and tumor response (e.g., "iStable Disease") were determined for each assessment. After complete data collection, a consensus reading among the four readers was performed to establish a reference standard for the correct response assignments. The reading times, error rates, and inter-reader agreement on SLDs were statistically compared between the manual versus software-assisted approaches. RESULTS The reading time was significantly longer for the manual versus software-assisted assessments at both follow-ups (median [interquartile range] FU1: 4.00 min [2.17 min] vs. 2.50 min [1.00 min]; FU2: 3.75 min [1.88 min] vs. 2.00 min [1.50 min]; both p < 0.001). Regarding reliability, 2.5% of all the response assessments were incorrect at FU1 (3.3% manual; 0% software-assisted), which increased to 5.8% at FU2 (10% manual; 1.7% software-assisted), demonstrating higher error rates for manual readings. Quantitative SLD inter-reader agreement was inferior for the manual compared to the software-assisted assessments at both FUs (FU1: ICC = 0.91 vs. 0.93; FU2: ICC = 0.75 vs. 0.86). CONCLUSIONS Software-assisted assessments may facilitate the iRECIST response evaluation of cancer patients in clinical routine by decreasing the reading time and reducing response misclassifications.
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Affiliation(s)
- Inka Ristow
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Lennart Well
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Nis Jesper Wiese
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Malte Warncke
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Joseph Tintelnot
- Department of Oncology and Hematology, Bone Marrow Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Amir Karimzadeh
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Daniel Koehler
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Gerhard Adam
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Peter Bannas
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Markus Sauer
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
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185
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Bandyopadhyay S, Zhao Z, East AK, Hernandez RT, Forzano JA, Shapiro BA, Yadav AK, Swartchick CB, Chan J. Activity-Based Nitric Oxide-Responsive Porphyrin for Site-Selective and Nascent Cancer Ablation. ACS Appl Mater Interfaces 2024; 16:9680-9689. [PMID: 38364813 DOI: 10.1021/acsami.3c15604] [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] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Nitric oxide (NO) generated within the tumor microenvironment is an established driver of cancer progression and metastasis. Recent efforts have focused on leveraging this feature to target cancer through the development of diagnostic imaging agents and activatable chemotherapeutics. In this context, porphyrins represent an extraordinarily promising class of molecules, owing to their demonstrated use within both modalities. However, the remodeling of a standard porphyrin to afford a responsive chemical that can distinguish elevated NO from physiological levels has remained a significant research challenge. In this study, we employed a photoinduced electron transfer strategy to develop a panel of NO-activatable porphyrin photosensitizers (NOxPorfins) augmented with real-time fluorescence monitoring capabilities. The lead compound, NOxPorfin-1, features an o-phenylenediamine trigger that can effectively capture NO (via N2O3) to yield a triazole product that exhibits a 7.5-fold enhancement and a 70-fold turn-on response in the singlet oxygen quantum yield and fluorescence signal, respectively. Beyond demonstrating excellent in vitro responsiveness and selectivity toward NO, we showcase the potent photodynamic therapy (PDT) effect of NOxPorfin-1 in murine breast cancer and human non-small cellular lung cancer cells. Further, to highlight the in vivo efficacy, two key studies were executed. First, we utilized NOxPorfin-1 to ablate murine breast tumors in a site-selective manner without causing substantial collateral damage to healthy tissue. Second, we established a nascent human lung cancer model to demonstrate the unprecedented ability of NOxPorfin-1 to halt tumor growth and progression completely. The results of the latter study have tremendous implications for applying PDT to target metastatic lesions.
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Affiliation(s)
- Suritra Bandyopadhyay
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Zhenxiang Zhao
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Amanda K East
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Rodrigo Tapia Hernandez
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Joseph A Forzano
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Benjamin A Shapiro
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Anuj K Yadav
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Chelsea B Swartchick
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Jefferson Chan
- Department of Chemistry, University of Illinois at Urbana─Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute for Advanced Science and Technology and Cancer Center at Illinois, University of Illinois at Urbana─Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
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186
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Andres L, Donners R, Harder D, Burssens A, Nüesch C, Krähenbühl N. Association Between Weightbearing CT and MRI Findings in Progressive Collapsing Foot Deformity. Foot Ankle Int 2024:10711007241231221. [PMID: 38419185 DOI: 10.1177/10711007241231221] [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] [Indexed: 03/02/2024]
Abstract
BACKGROUND Weightbearing computed tomography (WBCT) scans allow for a better understanding of foot alignment in patients suffering from progressive collapsing foot deformity (PCFD). However, soft tissue integrity (eg, spring ligament complex or tibialis posterior tendon) cannot be easily assessed via WBCT. As performing both WBCT and magnetic resonance imaging (MRI) might not be cost effective, we aimed to assess whether there is an association between osseous and soft tissue findings in WBCT and MRI. METHODS In this observational study, a consecutive cohort of 24 patients of various stages of PCFD (mean age 51 ± 18 years) underwent WBCT scans and MRI. Twenty-four healthy individuals of similar age, body mass index (BMI), and sex with WBCT scans were used as a control group. In addition to of osseous sinus tarsi impingement, 4 commonly used 3-dimensional (3D) measurements (talocalcaneal overlap [TCO], talonavicular coverage [TNC], Meary angle [MA], axial/lateral) were obtained using a dedicated postprocessing software (DISIOR 2.1, Finland) on the WBCT data sets. Sinus tarsi obliteration, spring ligament complex, tibiospring ligament integrity, as well as tibialis posterior tendon degeneration were evaluated with MRI. Statistical analysis was performed for significant (P < .05) correlation between findings. RESULTS None of the assessed 3D measurements correlated with either spring ligament complex or tibiospring ligament tears. BMI and TCO were found to be associated with tibialis posterior tendon tears. Seventy-five percent of patients with osseous sinus tarsi impingement on WBCT also showed signs of sinus tarsi obliteration on MRI. CONCLUSION Although WBCT reflects foot alignment and can reveal osseous sinus tarsi impingement in PCFD patients, the association between WBCT-based 3D measurements and ligament or tendon tears assessed via MRI is limited. WBCT appears complimentary to MRI regarding its diagnostic value. Both imaging options add important information and may impact decision making in the treatment of PCFD patients. LEVEL OF EVIDENCE Level IV, observational study.
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Affiliation(s)
- Lynn Andres
- Department of Orthopaedics, University Hospital Basel, Basel, Switzerland
| | - Ricardo Donners
- Department of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
| | - Dorothee Harder
- Department of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
| | - Arne Burssens
- Department of Orthopaedics, University Hospital Ghent, Gent, Belgium
| | - Corina Nüesch
- Department of Orthopaedics, University Hospital Basel, Basel, Switzerland
| | - Nicola Krähenbühl
- Department of Orthopaedics, University Hospital Basel, Basel, Switzerland
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187
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Durando M, Ferrando PM, Dianzani C, Galioto F, Mariscotti G, Regini E, Bartoli G, Malan F, Bogetti P, Fonio P. Acellular dermal matrix imaging features in breast reconstructive surgery: a pictorial review. Br J Radiol 2024; 97:505-512. [PMID: 38419148 DOI: 10.1093/bjr/tqad050] [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: 06/04/2023] [Revised: 10/29/2023] [Accepted: 11/29/2023] [Indexed: 03/02/2024] Open
Abstract
Acellular dermal matrices (ADMs) are biological engineered tissues, which may provide an immunologically inert scaffold in breast reconstruction. Since the literature on imaging features of ADMs is limited, radiologists must be aware of the common imaging appearances of ADM, to differentiate normal conformation from residual or recurrent disease. Our purpose is to review the current role of ADMs in implant-based breast reconstruction, describing the normal imaging findings at ultrasound, mammography, and MRI also considering the possible changes over time. In this pictorial essay, we reviewed imaging features of ADMs described in the literature and we reported our experience in patients who underwent reconstructive surgery with human or animal ADM for newly diagnosed breast cancer.
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Affiliation(s)
- Manuela Durando
- Radiology - University of Turin; Department of Diagnostic Imaging and Interventional Radiology; Presidio Ospedaliero Molinette - A. O. U. Città della Salute e della Scienza di Torino; Via Genova 3, Torino, 10126, Italy
| | - Pietro Maria Ferrando
- Plastic Surgery Department; Presidio ospedaliero CTO - A. O. U. Città della Salute e della Scienza di Torino; Via Zuretti, 29, Torino, 10126, Italy
| | - Chiara Dianzani
- Radiology - University of Turin; Department of Diagnostic Imaging and Interventional Radiology; Presidio Ospedaliero Molinette - A. O. U. Città della Salute e della Scienza di Torino; Via Genova 3, Torino, 10126, Italy
| | - Francesca Galioto
- Radiology - University of Turin; Department of Diagnostic Imaging and Interventional Radiology; Presidio Ospedaliero Molinette - A. O. U. Città della Salute e della Scienza di Torino; Via Genova 3, Torino, 10126, Italy
| | - Giovanna Mariscotti
- Radiology - University of Turin; Department of Diagnostic Imaging and Interventional Radiology; Presidio Ospedaliero Molinette - A. O. U. Città della Salute e della Scienza di Torino; Via Genova 3, Torino, 10126, Italy
| | - Elisa Regini
- Radiology - University of Turin; Department of Diagnostic Imaging and Interventional Radiology; Presidio Ospedaliero Molinette - A. O. U. Città della Salute e della Scienza di Torino; Via Genova 3, Torino, 10126, Italy
| | - Germana Bartoli
- Radiology - University of Turin; Department of Diagnostic Imaging and Interventional Radiology; Presidio Ospedaliero Molinette - A. O. U. Città della Salute e della Scienza di Torino; Via Genova 3, Torino, 10126, Italy
| | - Fabrizio Malan
- Plastic Surgery Department; Presidio ospedaliero CTO - A. O. U. Città della Salute e della Scienza di Torino; Via Zuretti, 29, Torino, 10126, Italy
| | - Paolo Bogetti
- Structure of Reconstructive and Aesthetic Plastic Surgery - University of Turin; Department of Surgical Sciences; Presidio Ospedaliero Molinette - A.O.U. Città della Salute e della Scienza di Torino; Torino, 10126, Italy
| | - Paolo Fonio
- Radiology - University of Turin; Department of Diagnostic Imaging and Interventional Radiology; Presidio Ospedaliero Molinette - A. O. U. Città della Salute e della Scienza di Torino; Via Genova 3, Torino, 10126, Italy
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188
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Elbashti ME, Aswehlee A, Sumita Y, Schimmel M, Abou-Ayash S, Molinero-Mourelle P. An integration protocol for aligning intraoral scans to facial scans using the nasal geometry reference in a fully dentate patient. Quintessence Int 2024; 55:140-146. [PMID: 37800690 DOI: 10.3290/j.qi.b4478927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Advanced digital technologies have rapidly been integrated into prosthodontics to improve the digital workflow for prosthetic rehabilitation. The integration of 3D datasets acquired from various imaging sources such as intraoral scanners and facial optical scanners allows the creation of virtual patients to perform presurgical simulation and prosthetic rehabilitation. The presented technique introduced a straightforward protocol for aligning intraoral scans (Trios 4, 3Shape) to optical face scans (Face Hunter, Zirkonzahn) using a global best-fit algorithm of 3D evaluation software (GOM Inspect). Nasal geometry data were used as the matching reference to produce virtual dental patients. This integration protocol ensured that the intraoral scanner (Trios 4, 3Shape) was used not only to scan dental arches but also used effectively to scan the nose. These scans along with professional facial scans can be successfully aligned to produce virtual dental patients. As only a single fully dentate patient case with an alignment deviation of 243.6 µm was used, further research to evaluate the accuracy of this protocol is needed.
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189
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Nguyen H, Vasconcellos HD, Keck K, Carr J, Launer LJ, Guallar E, Lima JAC, Ambale-Venkatesh B. Utility of multimodal longitudinal imaging data for dynamic prediction of cardiovascular and renal disease: the CARDIA study. Front Radiol 2024; 4:1269023. [PMID: 38476649 PMCID: PMC10927728 DOI: 10.3389/fradi.2024.1269023] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 02/06/2024] [Indexed: 03/14/2024]
Abstract
Background Medical examinations contain repeatedly measured data from multiple visits, including imaging variables collected from different modalities. However, the utility of such data for the prediction of time-to-event is unknown, and only a fraction of the data is typically used for risk prediction. We hypothesized that multimodal longitudinal imaging data could improve dynamic disease prognosis of cardiovascular and renal disease (CVRD). Methods In a multi-centered cohort of 5,114 CARDIA participants, we included 166 longitudinal imaging variables from five imaging modalities: Echocardiography (Echo), Cardiac and Abdominal Computed Tomography (CT), Dual-Energy x-ray Absorptiometry (DEXA), Brain Magnetic Resonance Imaging (MRI) collected from young adulthood to mid-life over 30 years (1985-2016) to perform dynamic survival analysis of CVRD events using machine learning dynamic survival analysis (Dynamic-DeepHit, LTRCforest, and Extended Cox for Time-varying Covariates). Risk probabilities were continuously updated as new data were collected. Model performance was assessed using integrated AUC and C-index and compared to traditional risk factors. Results Longitudinal imaging data, even when being irregularly collected with high missing rates, improved CVRD dynamic prediction (0.03 in integrated AUC, up to 0.05 in C-index compared to traditional risk factors; best model's C-index = 0.80-0.83 up to 20 years from baseline) from young adulthood followed up to midlife. Among imaging variables, Echo and CT variables contributed significantly to improved risk estimation. Echo measured in early adulthood predicted midlife CVRD risks almost as well as Echo measured 10-15 years later (0.01 C-index difference). The most recent CT exam provided the most accurate prediction for short-term risk estimation. Brain MRI markers provided additional information from cardiac Echo and CT variables that led to a slightly improved prediction. Conclusions Longitudinal multimodal imaging data readily collected from follow-up exams can improve CVRD dynamic prediction. Echocardiography measured early can provide a good long-term risk estimation, while CT/calcium scoring variables carry atherosclerotic signatures that benefit more immediate risk assessment starting in middle-age.
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Affiliation(s)
- Hieu Nguyen
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, United States
| | | | - Kimberley Keck
- Department of Cardiology, Johns Hopkins University, Baltimore, MD, United States
| | - Jeffrey Carr
- Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, United States
| | - Lenore J. Launer
- Laboratory of Epidemiology and Population Science, National Institute on Aging, Bethesda, MD, United States
| | - Eliseo Guallar
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - João A. C. Lima
- Department of Cardiology, Johns Hopkins University, Baltimore, MD, United States
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190
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Rajendran A, Ramlal A, Sarkar S, Agasti SS, Rajarajan K, Lal SK, Raju D, Subramaniam S. Autofluorescence-spectral imaging for rapid and invasive characterization of soybean for pre-germination anaerobic stress tolerance. Front Plant Sci 2024; 15:1334909. [PMID: 38476684 PMCID: PMC10927947 DOI: 10.3389/fpls.2024.1334909] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/09/2024] [Indexed: 03/14/2024]
Abstract
The autofluorescence-spectral imaging (ASI) technique is based on the light-emitting ability of natural fluorophores. Soybean genotypes showing contrasting tolerance to pre-germination anaerobic stress can be characterized using the photon absorption and fluorescence emission of natural fluorophores occurring in seed coats. In this study, tolerant seeds were efficiently distinguished from susceptible genotypes at 405 nm and 638 nm excitation wavelengths. ASI approach can be employed as a new marker for the detection of photon-emitting compounds in the tolerant and susceptible soybean seed coats. Furthermore, the accuracy of rapid characterization of genotypes using this technique can provide novel insights into soybean breeding.
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Affiliation(s)
- Ambika Rajendran
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Ayyagari Ramlal
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
- School of Biological Sciences, Universiti Sains Malaysia (USM), Georgetown, Penang, Malaysia
| | - Subham Sarkar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, Karnataka, India
| | - Sarit S. Agasti
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, Karnataka, India
| | - K. Rajarajan
- Tree Improvement Research Division, Central Agroforestry Research Institute (ICAR-CAFRI), Jhansi, Uttar Pradesh, India
| | - S. K. Lal
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Dhandapani Raju
- Division of Plant Physiology, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Sreeramanan Subramaniam
- School of Biological Sciences, Universiti Sains Malaysia (USM), Georgetown, Penang, Malaysia
- Chemical Centre Biology (CCB), Universiti Sains Malaysia (USM), Georgetown, Penang, Malaysia
- Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
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191
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Cinotti E, Barbarossa L, Cortonesi G, Lamberti A, La Marca F, Tognetti L, Rubegni P, Perrot JL. Non-Invasive Imaging for the Diagnosis of Genital Warts and Their Imitators. J Clin Med 2024; 13:1345. [PMID: 38592196 PMCID: PMC10932056 DOI: 10.3390/jcm13051345] [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: 01/15/2024] [Revised: 02/07/2024] [Accepted: 02/22/2024] [Indexed: 04/10/2024] Open
Abstract
Genital warts are the most frequent sexually transmitted disease. Their clinical diagnosis is not always easy, and invasive skin biopsies for histological examination should be performed in these cases. The aim of the study was to investigate the use of non-invasive imaging techniques for the diagnosis of genital warts and their imitators. We retrospectively evaluated dermoscopy, reflectance confocal microscopy (RCM), and line-filed confocal microscopy (LC-OCT) images of nine patients with 19 warts of the mucous membranes and five patients with lesions that clinically mimic genital warts, including 12 molluscum contagiosum, 1 Fordyce's spot and one case of multiple acquired lymphangiomas. Most genital warts (15; 79%) showed dilated vessels surrounded by a whitish halo at dermoscopy. RCM and the new device LC-OCT could identify near histologic features such as the presence of hyperkeratosis, acanthosis, papillomatosis and enlarged vessels in all genital warts. However, the identification of koilocytes, which are the hallmark for the diagnosis of warts, was still difficult using both techniques. Non-invasive imaging techniques could also offer clues for the correct diagnosis of the imitators. This study confirmed the usefulness of dermoscopy in recognizing a precise pattern in warts and showed the potential use of RCM and LC-OCT to add additional findings to the clinical and dermoscopic examination.
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Affiliation(s)
- Elisa Cinotti
- Dermatology Section, Department of Medical, Surgical, and Neurological Sciences, Santa Maria Alle Scotte Hospital, 53100 Siena, Italy; (E.C.); (G.C.); (A.L.); (F.L.M.); (L.T.); (P.R.)
| | - Lorenzo Barbarossa
- Dermatology Section, Department of Medical, Surgical, and Neurological Sciences, Santa Maria Alle Scotte Hospital, 53100 Siena, Italy; (E.C.); (G.C.); (A.L.); (F.L.M.); (L.T.); (P.R.)
| | - Giulio Cortonesi
- Dermatology Section, Department of Medical, Surgical, and Neurological Sciences, Santa Maria Alle Scotte Hospital, 53100 Siena, Italy; (E.C.); (G.C.); (A.L.); (F.L.M.); (L.T.); (P.R.)
| | - Arianna Lamberti
- Dermatology Section, Department of Medical, Surgical, and Neurological Sciences, Santa Maria Alle Scotte Hospital, 53100 Siena, Italy; (E.C.); (G.C.); (A.L.); (F.L.M.); (L.T.); (P.R.)
| | - Francesca La Marca
- Dermatology Section, Department of Medical, Surgical, and Neurological Sciences, Santa Maria Alle Scotte Hospital, 53100 Siena, Italy; (E.C.); (G.C.); (A.L.); (F.L.M.); (L.T.); (P.R.)
| | - Linda Tognetti
- Dermatology Section, Department of Medical, Surgical, and Neurological Sciences, Santa Maria Alle Scotte Hospital, 53100 Siena, Italy; (E.C.); (G.C.); (A.L.); (F.L.M.); (L.T.); (P.R.)
| | - Pietro Rubegni
- Dermatology Section, Department of Medical, Surgical, and Neurological Sciences, Santa Maria Alle Scotte Hospital, 53100 Siena, Italy; (E.C.); (G.C.); (A.L.); (F.L.M.); (L.T.); (P.R.)
| | - Jean Luc Perrot
- Department of Dermatology, University Hospital of Saint-Etienne, 42100 Saint-Etienne, France;
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192
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Mertens TF, Liebheit AT, Ehl J, Köhler R, Rakhymzhan A, Woehler A, Katthän L, Ebel G, Liublin W, Kasapi A, Triantafyllopoulou A, Schulz TJ, Niesner RA, Hauser AE. MarShie: a clearing protocol for 3D analysis of single cells throughout the bone marrow at subcellular resolution. Nat Commun 2024; 15:1764. [PMID: 38409121 PMCID: PMC10897183 DOI: 10.1038/s41467-024-45827-6] [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: 03/06/2023] [Accepted: 02/01/2024] [Indexed: 02/28/2024] Open
Abstract
Analyzing immune cell interactions in the bone marrow is vital for understanding hematopoiesis and bone homeostasis. Three-dimensional analysis of the complete, intact bone marrow within the cortex of whole long bones remains a challenge, especially at subcellular resolution. We present a method that stabilizes the marrow and provides subcellular resolution of fluorescent signals throughout the murine femur, enabling identification and spatial characterization of hematopoietic and stromal cell subsets. By combining a pre-processing algorithm for stripe artifact removal with a machine-learning approach, we demonstrate reliable cell segmentation down to the deepest bone marrow regions. This reveals age-related changes in the marrow. It highlights the interaction between CX3CR1+ cells and the vascular system in homeostasis, in contrast to other myeloid cell types, and reveals their spatial characteristics after injury. The broad applicability of this method will contribute to a better understanding of bone marrow biology.
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Affiliation(s)
- Till Fabian Mertens
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
- Immune Dynamics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
| | - Alina Tabea Liebheit
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
- Immune Dynamics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
- Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Johanna Ehl
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
- Immune Dynamics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
| | - Ralf Köhler
- Immune Dynamics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
| | - Asylkhan Rakhymzhan
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
- Biophysical Analytics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
| | - Andrew Woehler
- Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine, 10115, Berlin, Germany
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, 20147, USA
| | - Lukas Katthän
- Miltenyi Biotec B.V. and Co. Bertha-von-Suttner-Straße 5, 37085, Göttingen, Germany
| | - Gernot Ebel
- Miltenyi Biotec B.V. and Co. Bertha-von-Suttner-Straße 5, 37085, Göttingen, Germany
| | - Wjatscheslaw Liublin
- Biophysical Analytics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
| | - Ana Kasapi
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
- Innate Immunity in Rheumatic Diseases, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
| | - Antigoni Triantafyllopoulou
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
- Innate Immunity in Rheumatic Diseases, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
| | - Tim Julius Schulz
- Department of Adipocyte Development and Nutrition, German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, 14558, Nuthetal, Germany
- German Center for Diabetes Research (DZD), 85764, Munich-Neuherberg, Germany
| | - Raluca Aura Niesner
- Biophysical Analytics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany
- Dynamic and Functional in vivo Imaging, Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Anja Erika Hauser
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany.
- Immune Dynamics, Deutsches Rheuma-Forschungszentrum (DRFZ), a Leibniz Institute, Charitéplatz 1, 10117, Berlin, Germany.
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193
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Sugiyama H, Goto Y, Kondo Y, Coudreuse D, Aoki K. Live-cell imaging defines a threshold in CDK activity at the G2/M transition. Dev Cell 2024; 59:545-557.e4. [PMID: 38228139 DOI: 10.1016/j.devcel.2023.12.014] [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: 04/12/2023] [Revised: 10/05/2023] [Accepted: 12/21/2023] [Indexed: 01/18/2024]
Abstract
Cyclin-dependent kinase (CDK) determines the temporal ordering of the cell cycle phases. However, despite significant progress in studying regulators of CDK and phosphorylation patterns of CDK substrates at the population level, it remains elusive how CDK regulators coordinately affect CDK activity at the single-cell level and how CDK controls the temporal order of cell cycle events. Here, we elucidate the dynamics of CDK activity in fission yeast and mammalian cells by developing a CDK activity biosensor, Eevee-spCDK. We find that although CDK activity does not necessarily correlate with cyclin levels, it converges to the same level around mitotic onset in several mutant backgrounds, including pom1Δ cells and wee1 or cdc25 overexpressing cells. These data provide direct evidence that cells enter the M phase when CDK activity reaches a high threshold, consistent with the quantitative model of cell cycle progression in fission yeast.
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Affiliation(s)
- Hironori Sugiyama
- Quantitative Biology Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan
| | - Yuhei Goto
- Quantitative Biology Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan; Division of Quantitative Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan; Basic Biology Program, Graduate Institute for Advanced Studies, SOKENDAI, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan
| | - Yohei Kondo
- Quantitative Biology Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan; Division of Quantitative Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan; Basic Biology Program, Graduate Institute for Advanced Studies, SOKENDAI, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan
| | - Damien Coudreuse
- Institute of Biochemistry and Cellular Genetics, UMR 5095, CNRS, Bordeaux University, 33077 Bordeaux, France
| | - Kazuhiro Aoki
- Quantitative Biology Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan; Division of Quantitative Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan; Basic Biology Program, Graduate Institute for Advanced Studies, SOKENDAI, 5-1 Higashiyama, Myodaiji-cho, Okazaki, Aichi 444-8787, Japan.
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194
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El Amrani S, Imrani K, Moatassim Billah N, Nassar I. Primary extra hepatic hydatid cyst of the kidney: A case report. SAGE Open Med Case Rep 2024; 12:2050313X241233188. [PMID: 38410691 PMCID: PMC10896061 DOI: 10.1177/2050313x241233188] [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: 08/09/2023] [Accepted: 01/19/2024] [Indexed: 02/28/2024] Open
Abstract
Human echinococcosis (hydatid disease) is highly endemic in Morocco and reemerging as a significant public health problem in this country. It is a cyclozoonotic infection introduced by Echinococcus granulosus, that can invade any organ in the human body. The liver is the mostly affected organ, which is the primary site of human infestation, followed by lungs. Renal involvement by hydatid disease is commonly secondary, occurring owing to primary cyst rupture or disseminated disease. Primary renal localization, often presented as solitary cysts with no visceral involvement, is uncommon even in endemic zone. Herein, a rare cause of renal mass due to an isolated hydatid cyst in a 56-year-old woman who presented with ambiguous left flank pain for the last 10 years. Findings imaging did not reveal any other localizations of hydatid disease. For this scolicidal effect and to prevent peritoneal seeding, the patient was placed on albendazole 400 mg. Three weeks later, the surgery was performed successfully with a left total nephrectomy.
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Affiliation(s)
- Soukaina El Amrani
- Central Radiology Department, Ibn Sina Hospital, Mohamed V University, Rabat, Morocco
| | - Kaoutar Imrani
- Central Radiology Department, Ibn Sina Hospital, Mohamed V University, Rabat, Morocco
| | | | - Itimad Nassar
- Central Radiology Department, Ibn Sina Hospital, Mohamed V University, Rabat, Morocco
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195
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Nogueira VO, Neves MC, Neppelenbroek K, Oliveira TM, Sforza C, Soares S. Facial Analysis of Patients with Unilateral or Bilateral Cleft Lip and Palate Using 3D Stereophotogrammetry. Cleft Palate Craniofac J 2024:10556656241234603. [PMID: 38403944 DOI: 10.1177/10556656241234603] [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: 02/27/2024] Open
Abstract
OBJECTIVES To evaluate the quantitative values of linear and angular facial anthropometrics in patients with unilateral cleft lip and palate (UCLP) and compare them with those of patients with bilateral cleft lip and palate (BCLP) using three-dimensional (3D) facial imaging. DESIGN Retrospective, observational, and cross-sectional study. SETTING Hospital for Rehabilitation of Craniofacial Anomalies/USP (HRAC/USP). PATIENTS/ PARTICIPANTS In total, 61 non-syndromic patients with CLP who underwent multidisciplinary treatment and rehabilitated with a prosthesis were enrolled and divided into those with UCLP (G1; n = 31) and those with BCLP (G2; n = 30). INTERVENTION Facial images were captured using a 3D camera after landmarks were marked on each patient's face. The software evaluated linear and angular parameters. Statistical tests were applied. Significance was determined as P < 0.05. MAIN OUTCOME MEASUREMENTS Overall, 22 linear and 13 angular measurements were evaluated. RESULTS The nasal length (P = 0.08), middle third of the face (P = 0.06), base nose width (P < 0.001), nasal root width (P < 0.001), nasal tip angle (P = 0.018), philtrum width (P < 0.001), lower face width (P = 0.039) and midfacial depth (P = 0.040) were significantly higher in G2; the upper cutaneous lip height was significantly higher in G1. Sexual dimorphism was observed except for linear measurements (linear distance between the labiale superius and labiale inferius landmarks, nasal root width, and upper cutaneous lip length) and angular measurements. CONCLUSIONS G2 had a greater length and width of nose and nasal root, nasal tip angle, philtrum width, and lower face width, midfacial depth, and midface third than G1. These findings also revealed the presence of sexual dimorphism.
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Affiliation(s)
- Vanessa Ota Nogueira
- Post graduate student, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
| | - Maria Carolina Neves
- Post graduate student, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
| | - Karin Neppelenbroek
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Thaís Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry and Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
| | - Chiarella Sforza
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Bauru, Brazil
| | - Simone Soares
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry and Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
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Brandi N, Renzulli M. Towards a Simplified and Cost-Effective Diagnostic Algorithm for the Surveillance of Intraductal Papillary Mucinous Neoplasms (IPMNs): Can We Save Contrast for Later? Cancers (Basel) 2024; 16:905. [PMID: 38473267 DOI: 10.3390/cancers16050905] [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: 02/08/2024] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
The increased detection of pancreatic cysts in recent years has triggered extensive diagnostic investigations to clarify their potential risk of malignancy, resulting in a large number of patients undergoing numerous imaging follow-up studies for many years. Therefore, there is a growing need for optimization of the current surveillance protocol to reduce both healthcare costs and waiting lists, while still maintaining appropriate sensibility and specificity. Imaging is an essential tool for evaluating patients with intraductal papillary mucinous neoplasms (IPMNs) since it can assess several predictors for malignancy and thus guide further management recommendations. Although contrast-enhanced magnetic resonance imaging (MRI) with magnetic resonance cholangiopancreatography (MRCP) has been widely recommended by most international guidelines, recent results support the use of unenhanced abbreviated-MRI (A-MRI) protocols as a surveillance tool in patients with IPMN. In fact, A-MRI has shown high diagnostic performance in malignant detection, with high sensitivity and specificity as well as excellent interobserver agreement. The aim of this paper is, therefore, to discuss the current available evidence on whether the implementation of an abbreviated-MRI (A-MRI) protocol for cystic pancreatic lesion surveillance could improve healthcare economics and reduce waiting lists in clinical practice without significantly reducing diagnostic accuracy.
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Affiliation(s)
- Nicolò Brandi
- Department of Radiology, Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
- Department of Radiology, AUSL Romagna, 48018 Faenza, Italy
| | - Matteo Renzulli
- Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
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Wahid JA, Mingliang X, Ayoub M, Husssain S, Li L, Shi L. A hybrid ResNet-ViT approach to bridge the global and local features for myocardial infarction detection. Sci Rep 2024; 14:4359. [PMID: 38388668 PMCID: PMC10883929 DOI: 10.1038/s41598-024-54846-8] [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: 10/08/2023] [Accepted: 02/17/2024] [Indexed: 02/24/2024] Open
Abstract
Myocardial infarction (MI) remains a significant contributor to global mortality and morbidity, necessitating accurate and timely diagnosis. Current diagnostic methods encounter challenges in capturing intricate patterns, urging the need for advanced automated approaches to enhance MI detection. In this study, we strive to advance MI detection by proposing a hybrid approach that combines the strengths of ResNet and Vision Transformer (ViT) models, leveraging global and local features for improved accuracy. We introduce a slim-model ViT design with multibranch networks and channel attention mechanisms to enhance patch embedding extraction, addressing ViT's limitations. By training data through both ResNet and modified ViT models, we incorporate a dual-pathway feature extraction strategy. The fusion of global and local features addresses the challenge of robust feature vector creation. Our approach showcases enhanced learning capabilities through modified ViT architecture and ResNet architecture. The dual-pathway training enriches feature extraction, culminating in a comprehensive feature vector. Preliminary results demonstrate significant potential for accurate detection of MI. Our study introduces a hybrid ResNet-ViT model for advanced MI detection, highlighting the synergy between global and local feature extraction. This approach holds promise for elevating MI classification accuracy, with implications for improved patient care. Further validation and clinical applicability exploration are warranted.
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Affiliation(s)
- Junaid Abdul Wahid
- School of Computer and Artificial Intelligence, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Xu Mingliang
- School of Computer and Artificial Intelligence, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Muhammad Ayoub
- School of Computer Science and Engineering, Central South University, Changsha, 410017, Hunan, China.
| | - Shabir Husssain
- School of Architecture, Harbin Institute of Technology, Shenzhen, 518055, Guangdong, China
| | - Lifeng Li
- Department of Radiology, The Affiliated Changsha Central Hospital, Hengyang Medical school, University of South China, Changsha, 410017, China
| | - Lei Shi
- School of Cyberspace and Security, Zhengzhou University, Zhengzhou, 450001, Henan, China
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198
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Villalobos A, Lee J, Westergaard SA, Kokabi N. Impact of Hypoxia on Radiation-Based Therapies for Liver Cancer. Cancers (Basel) 2024; 16:876. [PMID: 38473237 DOI: 10.3390/cancers16050876] [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: 01/04/2024] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/14/2024] Open
Abstract
Background: Hypoxia, a state of low oxygen level within a tissue, is often present in primary and secondary liver tumors. At the molecular level, the tumor cells' response to hypoxic stress induces proteomic and genomic changes which are largely regulated by proteins called hypoxia-induced factors (HIF). These proteins have been found to drive tumor progression and cause resistance to drug- and radiation-based therapies, ultimately contributing to a tumor's poor prognosis. Several imaging modalities have been developed to visualize tissue hypoxia, providing insight into a tumor's microbiology. Methods: A systematic literature search was conducted in PubMed, EMBASE, Cochrane, and Google Scholar for all reports related to hypoxia on liver tumors. All relevant studies were summarized. Results: This review will focus on the impact of hypoxia on liver tumors and review PET-, MRI-, and SPECT-based imaging modalities that have been developed to predict and assess a tumor's response to radiation therapy, with a focus on liver cancers. Conclusion: While there are numerous studies that have evaluated the impact of hypoxia on tumor outcomes, there remains a relative paucity of data evaluating and quantifying hypoxia within the liver. Novel and developing non-invasive imaging techniques able to provide functional and physiological information on tumor hypoxia within the liver may be able to assist in the treatment planning of primary and metastatic liver lesions.
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Affiliation(s)
- Alexander Villalobos
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Jean Lee
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA 30322, USA
| | | | - Nima Kokabi
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
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199
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Bourantas C, Torii R, Karabasov S, Krams R. Editorial: Computational modelling of cardiovascular hemodynamics and machine learning. Front Cardiovasc Med 2024; 11:1355843. [PMID: 38455721 PMCID: PMC10917996 DOI: 10.3389/fcvm.2024.1355843] [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: 12/14/2023] [Accepted: 02/09/2024] [Indexed: 03/09/2024] Open
Affiliation(s)
- Christos Bourantas
- Department of Cardiology, Bart’s Heart Centre, Barts Health NHS Trust, London, United Kingdom
- Device and Innovation Centre, William Harvey Research Institute, Queen Mary University, London, United Kingdom
| | - Ryo Torii
- Department of Mechanical Engineering, University College, London, United Kingdom
| | - Sergey Karabasov
- School for Science and Engineering, Queen Mary University, London, United Kingdom
| | - Rob Krams
- School for Science and Engineering, Queen Mary University, London, United Kingdom
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200
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Henary E, Casa S, Dost TL, Sloop JC, Henary M. The Role of Small Molecules Containing Fluorine Atoms in Medicine and Imaging Applications. Pharmaceuticals (Basel) 2024; 17:281. [PMID: 38543068 PMCID: PMC10975950 DOI: 10.3390/ph17030281] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/12/2024] [Accepted: 02/17/2024] [Indexed: 04/01/2024] Open
Abstract
The fluorine atom possesses many intrinsic properties that can be beneficial when incorporated into small molecules. These properties include the atom's size, electronegativity, and ability to block metabolic oxidation sites. Substituents that feature fluorine and fluorine-containing groups are currently prevalent in drugs that lower cholesterol, relieve asthma, and treat anxiety disorders, as well as improve the chemical properties of various medications and imaging agents. The dye scaffolds (fluorescein/rhodamine, coumarin, BODIPY, carbocyanine, and squaraine dyes) reported will address the incorporation of the fluorine atom in the scaffold and the contribution it provides to its application as an imaging agent. It is also important to recognize radiolabeled fluorine atoms used for PET imaging in the early detection of diseases. This review will discuss the many benefits of incorporating fluorine atoms into small molecules and give examples of fluorinated molecules used in the pharmaceutical industry and imaging techniques.
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Affiliation(s)
- Emily Henary
- School of Science and Technology, Georgia Gwinnett College, 1000 University Center Lane, Lawrenceville, GA 30043, USA; (E.H.); (J.C.S.)
| | - Stefanie Casa
- Department of Chemistry, Petit Science Center, Georgia State University, 100 Piedmont Avenue SE, Atlanta, GA 30303, USA; (S.C.); (T.L.D.)
| | - Tyler L. Dost
- Department of Chemistry, Petit Science Center, Georgia State University, 100 Piedmont Avenue SE, Atlanta, GA 30303, USA; (S.C.); (T.L.D.)
| | - Joseph C. Sloop
- School of Science and Technology, Georgia Gwinnett College, 1000 University Center Lane, Lawrenceville, GA 30043, USA; (E.H.); (J.C.S.)
| | - Maged Henary
- Department of Chemistry, Petit Science Center, Georgia State University, 100 Piedmont Avenue SE, Atlanta, GA 30303, USA; (S.C.); (T.L.D.)
- Center for Diagnostics and Therapeutics, Georgia State University, 100 Piedmont Avenue SE, Atlanta, GA 30303, USA
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