1
|
Suzuki Y, Clement P, Dai W, Dolui S, Fernández-Seara M, Lindner T, Mutsaerts HJMM, Petr J, Shao X, Taso M, Thomas DL. ASL lexicon and reporting recommendations: A consensus report from the ISMRM Open Science Initiative for Perfusion Imaging (OSIPI). Magn Reson Med 2024; 91:1743-1760. [PMID: 37876299 PMCID: PMC10950547 DOI: 10.1002/mrm.29815] [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: 03/07/2023] [Revised: 06/22/2023] [Accepted: 07/13/2023] [Indexed: 10/26/2023]
Abstract
The 2015 consensus statement published by the International Society for Magnetic Resonance in Medicine (ISMRM) Perfusion Study Group and the European Cooperation in Science and Technology ( COST) Action ASL in Dementia aimed to encourage the implementation of robust arterial spin labeling (ASL) perfusion MRI for clinical applications and promote consistency across scanner types, sites, and studies. Subsequently, the recommended 3D pseudo-continuous ASL sequence has been implemented by most major MRI manufacturers. However, ASL remains a rapidly and widely developing field, leading inevitably to further divergence of the technique and its associated terminology, which could cause confusion and hamper research reproducibility. On behalf of the ISMRM Perfusion Study Group, and as part of the ISMRM Open Science Initiative for Perfusion Imaging (OSIPI), the ASL Lexicon Task Force has been working on the development of an ASL Lexicon and Reporting Recommendations for perfusion imaging and analysis, aiming to (1) develop standardized, consensus nomenclature and terminology for the broad range of ASL imaging techniques and parameters, as well as for the physiological constants required for quantitative analysis; and (2) provide a community-endorsed recommendation of the imaging parameters that we encourage authors to include when describing ASL methods in scientific reports/papers. In this paper, the sequences and parameters in (pseudo-)continuous ASL, pulsed ASL, velocity-selective ASL, and multi-timepoint ASL for brain perfusion imaging are included. However, the content of the lexicon is not intended to be limited to these techniques, and this paper provides the foundation for a growing online inventory that will be extended by the community as further methods and improvements are developed and established.
Collapse
Affiliation(s)
- Yuriko Suzuki
- Wellcome Centre for Integrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Patricia Clement
- Department of Medical Imaging, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Weiying Dai
- State University of New York at Binghamton, Binghamton, NY, USA
| | - Sudipto Dolui
- Department of Radiology, University of Pennsylvania, Philadelphia, USA
| | - Maria Fernández-Seara
- Department of Radiology, Clínica Universidad de Navarra, Pamplona, Spain
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | | | - Henk JMM Mutsaerts
- Department of Radiology and Nuclear medicine, Amsterdam Neuroscience, Amsterdam University Medical Center, the Netherlands, Amsterdam
| | - Jan Petr
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Xingfeng Shao
- Laboratory of FMRI Technology (LOFT), Mark & Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Manuel Taso
- Division of MRI Research, Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - David L Thomas
- Department of Brain Repair and Rehabilitation, UCL Queen Square Institute of Neurology, University College London, London, UK
| | | |
Collapse
|
2
|
Hudson AL, Luu BL, Gandevia SC, Butler JE. Graded onset of parasternal intercostal inspiratory activity detected with surface electromyography in healthy young females and males. J Appl Physiol (1985) 2024; 136:695-706. [PMID: 38328820 DOI: 10.1152/japplphysiol.00604.2023] [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: 08/29/2023] [Accepted: 02/05/2024] [Indexed: 02/09/2024] Open
Abstract
Intramuscular recordings of single motor unit activity from parasternal intercostal muscles show a rostrocaudal gradient in timing and amplitude of inspiratory activity. This study determined the feasibility of surface electromyographic activity (EMG) to measure graded parasternal intercostal activity in young females and males during quiet breathing and breathing with inspiratory resistive loads. Surface EMGs were recorded from the 1st-to-5th parasternal intercostal muscles during 10 min of breathing. EMGs were processed to remove 50 Hz and electrocardiogram artifacts and integrated. Amplitude and onset time of inspiratory activity were measured from waveform averages triggered at the onset of inspiratory flow. Onset times were measured independently by two assessors, blinded to interspace and EMG scale, with excellent agreement (ICC3,k = 0.86). The onset of inspiratory activity in the 1st-to-3rd interspaces was at or within ∼400 ms of the start of inspiratory airflow, but activity in the caudal (4th and 5th) spaces was delayed by up to ∼1,000 ms (P < 0.001). There was no main effect of sex on onset time (P = 0.07), but an interaction with interspace (P < 0.001) revealed that inspiratory activity in the caudal interspaces was delayed by 15% of inspiratory time in female participants compared with 30% of inspiratory time in male participants. Inspiratory loads did not affect EMG onset time (P = 0.31). Thus, surface EMG is feasible to assess the onset time of inspiratory activity as a marker of inspiratory neural drive and pattern of activation across spaces, in both females and males.NEW & NOTEWORTHY We demonstrated that surface EMG is a valid method to measure graded inspiratory EMG in the parasternal intercostal muscles in healthy young male and female participants during quiet breathing and loaded breathing. Across the 1st-to-5th interspaces, there was more homogenous activation in women and more graded activity in men across parasternal intercostal muscles during breathing. By recording surface EMG from both male and female participants, we have revealed sex differences in inspiratory activity across intercostal muscles.
Collapse
Affiliation(s)
- Anna L Hudson
- Flinders Health and Medical Research Institute, Flinders University, Adelaide, South Australia, Australia
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
| | - Billy L Luu
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Simon C Gandevia
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
| | - Jane E Butler
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
| |
Collapse
|
3
|
Hong S, Maitra P, Kadoya K, Abdolvahabi A, Rowe JM, Mehta RC. Quantitative Confocal Raman Microspectroscopy to Evaluate Skin Penetration of Topically Applied Substances. J Invest Dermatol 2024:S0022-202X(24)00194-5. [PMID: 38522570 DOI: 10.1016/j.jid.2024.01.035] [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: 06/29/2023] [Revised: 01/16/2024] [Accepted: 01/26/2024] [Indexed: 03/26/2024]
Affiliation(s)
- Soonjin Hong
- Skincare R&D, Allergan Aesthetics, an AbbVie Company, Irvine, CA, USA
| | - Prithwiraj Maitra
- Skincare R&D, Allergan Aesthetics, an AbbVie Company, Irvine, CA, USA.
| | - Kuniko Kadoya
- Skincare R&D, Allergan Aesthetics, an AbbVie Company, Irvine, CA, USA
| | | | - Joshua M Rowe
- Local Delivery and Translational Science, AbbVie Inc., Irvine, CA, USA
| | - Rahul C Mehta
- Skincare R&D, Allergan Aesthetics, an AbbVie Company, Irvine, CA, USA
| |
Collapse
|
4
|
Zhang YH, Hu B. Future directions of noninvasive prediction of esophageal variceal bleeding: No worry about the present computed tomography inefficiency. World J Gastrointest Endosc 2024; 16:108-111. [DOI: 10.4253/wjge.v16.i3.108] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/16/2024] [Accepted: 02/06/2024] [Indexed: 03/14/2024] Open
Abstract
In this editorial, we comment on the minireview by Martino A, published in the recent issue of World Journal of Gastrointestinal Endoscopy 2023; 15 (12): 681-689. We focused mainly on the possibility of replacing the hepatic venous pressure gradient (HVPG) and endoscopy with noninvasive methods for predicting esophageal variceal bleeding. The risk factors for bleeding were the size of the varices, the red sign and the Child-Pugh score. The intrinsic core factor that drove these changes was the HVPG. Therefore, the present studies investigating noninvasive methods, including computed tomography, magnetic resonance imaging, elastography, and laboratory tests, are working on correlating imaging or serum marker data with intravenous pressure and clinical outcomes, such as bleeding. A single parameter is usually not enough to construct an efficient model. Therefore, multiple factors were used in most of the studies to construct predictive models. Encouraging results have been obtained, in which bleeding prediction was partly reached. However, these methods are not satisfactory enough to replace invasive methods, due to the many drawbacks of different studies. There is still plenty of room for future improvement. Prediction of the precise timing of bleeding using various models, and extracting the texture of variceal walls using high-definition imaging modalities to predict the red sign are interesting directions to lay investment on.
Collapse
Affiliation(s)
- Yu-Hang Zhang
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Bing Hu
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| |
Collapse
|
5
|
Mesik L, Parkins S, Severin D, Grier BD, Ewall G, Kotha S, Wesselborg C, Moreno C, Jaoui Y, Felder A, Huang B, Johnson MB, Harrigan TP, Knight AE, Lani SW, Lemaire T, Kirkwood A, Hwang GM, Lee HK. Transcranial Low-Intensity Focused Ultrasound Stimulation of the Visual Thalamus Produces Long-Term Depression of Thalamocortical Synapses in the Adult Visual Cortex. J Neurosci 2024; 44:e0784232024. [PMID: 38316559 PMCID: PMC10941064 DOI: 10.1523/jneurosci.0784-23.2024] [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: 04/30/2023] [Revised: 12/13/2023] [Accepted: 01/30/2024] [Indexed: 02/07/2024] Open
Abstract
Transcranial focused ultrasound stimulation (tFUS) is a noninvasive neuromodulation technique, which can penetrate deeper and modulate neural activity with a greater spatial resolution (on the order of millimeters) than currently available noninvasive brain stimulation methods, such as transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS). While there are several studies demonstrating the ability of tFUS to modulate neuronal activity, it is unclear whether it can be used for producing long-term plasticity as needed to modify circuit function, especially in adult brain circuits with limited plasticity such as the thalamocortical synapses. Here we demonstrate that transcranial low-intensity focused ultrasound (LIFU) stimulation of the visual thalamus (dorsal lateral geniculate nucleus, dLGN), a deep brain structure, leads to NMDA receptor (NMDAR)-dependent long-term depression of its synaptic transmission onto layer 4 neurons in the primary visual cortex (V1) of adult mice of both sexes. This change is not accompanied by large increases in neuronal activity, as visualized using the cFos Targeted Recombination in Active Populations (cFosTRAP2) mouse line, or activation of microglia, which was assessed with IBA-1 staining. Using a model (SONIC) based on the neuronal intramembrane cavitation excitation (NICE) theory of ultrasound neuromodulation, we find that the predicted activity pattern of dLGN neurons upon sonication is state-dependent with a range of activity that falls within the parameter space conducive for inducing long-term synaptic depression. Our results suggest that noninvasive transcranial LIFU stimulation has a potential for recovering long-term plasticity of thalamocortical synapses in the postcritical period adult brain.
Collapse
Affiliation(s)
- Lukas Mesik
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Kavli Neuroscience Discovery Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, Maryland 21205
| | - Samuel Parkins
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Cell Molecular Developmental Biology and Biophysics Graduate Program, Johns Hopkins University, Baltimore, Maryland 21218
| | - Daniel Severin
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
| | - Bryce D Grier
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, Maryland 21205
| | - Gabrielle Ewall
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, Maryland 21205
| | - Sumasri Kotha
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
| | - Christian Wesselborg
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Cell Molecular Developmental Biology and Biophysics Graduate Program, Johns Hopkins University, Baltimore, Maryland 21218
| | - Cristian Moreno
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
| | - Yanis Jaoui
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
| | - Adrianna Felder
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
| | - Brian Huang
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
| | - Marina B Johnson
- Johns Hopkins Applied Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20723
| | - Timothy P Harrigan
- Johns Hopkins Applied Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20723
| | - Anna E Knight
- Johns Hopkins Applied Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20723
| | - Shane W Lani
- Johns Hopkins Applied Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20723
| | - Théo Lemaire
- Neuroscience Institute, New York University Langone Health, New York, New York 10016
| | - Alfredo Kirkwood
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, Maryland 21205
| | - Grace M Hwang
- Kavli Neuroscience Discovery Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Johns Hopkins Applied Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20723
| | - Hey-Kyoung Lee
- Zanvyl-Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Kavli Neuroscience Discovery Institute, Johns Hopkins University, Baltimore, Maryland 21218
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, Maryland 21205
| |
Collapse
|
6
|
Fernandez LL, Griswold D, Khun I, Rodriguez De Francisco DV. Innovative Solutions for Patients Who Undergo Craniectomy: Protocol for a Scoping Review. JMIR Res Protoc 2024; 13:e50647. [PMID: 38451601 PMCID: PMC10958337 DOI: 10.2196/50647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND Decompressive craniectomy (DC) is a widely used procedure to alleviate high intracranial pressure. Multidisciplinary teams have designed and implemented external medical prototypes to improve patient life quality and avoid complications following DC in patients awaiting cranioplasty (CP), including 3D printing and plaster prototypes when available. OBJECTIVE This scoping review aims to understand the extent and type of evidence about innovative external prototypes for patients who undergo DC while awaiting CP. METHODS This scoping review will use the Joanna Briggs Institute methodology for scoping reviews. This scoping review will include noninvasive medical devices for adult patients who undergo DC while waiting for CP. The search strategy will be implemented in MEDLINE, Embase, Web of Science, Scielo, Scopus, and the World Health Organization (WHO) Global Health Index Medicus. Patent documents were also allocated in Espacenet, Google Patents, and the World Intellectual Property Organization (WIPO) database. RESULTS This scoping review is not subject to ethical approval as there will be no involvement of patients. The dissemination plan includes publishing the review findings in a peer-reviewed journal and presenting results at conferences that engage the most pertinent stakeholders in innovation and neurosurgery. CONCLUSIONS This scoping review will serve as a baseline to provide evidence for multidisciplinary teams currently designing these noninvasive innovations to reduce the risk of associated complications after DC, hoping that more cost-effective models can be implemented, especially in low- and middle-income countries. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/50647.
Collapse
Affiliation(s)
- Laura L Fernandez
- Clinical & Translational Science Institute and Center for Global Surgery, University of Utah, Salt Lake City, UT, United States
| | - Dylan Griswold
- NIHR Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, United Kingdom
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | - Isla Khun
- University of Cambridge, Cambridge, United Kingdom
| | | |
Collapse
|
7
|
Kinney BM, Boyd CM. Remodeling of facial soft tissue induced by simultaneous application of HIFES and synchronized radiofrequency provides nonsurgical lift of facial soft tissues. J Cosmet Dermatol 2024; 23:824-829. [PMID: 38235951 DOI: 10.1111/jocd.16165] [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] [Revised: 12/04/2023] [Accepted: 12/20/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND The application of radiofrequency (RF) and HIFES on the body provides improvement in skeletal muscle tissue, reduction in fatty tissue, reorganization of connective tissue, and skin texture improvement. However, overall facial appearance relies on both skin and underlying structures, specifically muscles and connective tissue which have to be treated as one unit to achieve proper care while preserving fatty layers that define youth facial appearance. AIMS The aim of this study is to find whether the effect of novel RF + HIFES is safe and can induce the lifting of soft tissue and overall improvement in facial appearance. METHODS In this study, 21 subjects were enrolled. The therapy was administered in four 20-min treatments on the forehead and cheeks. Photographs were evaluated by a Global Aesthetic Improvement Score (GAIS) and linear measurements of facial tissue lifting at 1- and 3-month follow-ups. Volumetric changes in the cheek area were investigated as well. The patients' satisfaction, safety, and comfort were documented throughout the study. RESULTS The data indicated improvement in overall facial appearance, and 23% of average lifting was found in brows (p = 3.14 × 10-12 ) and cheeks (p = 6.00 × 10-15 ). The assessment of digital photographs showed an improvement in 100% of patients at 3-month follow-up. The treatments were safe, accompanied by high therapy comfort and subject satisfaction of 98%. CONCLUSIONS The treatment by simultaneous RF and HIFES technology produces significant changes to the overall facial appearance, characterized by the lifting of facial tissues.
Collapse
Affiliation(s)
- Brian M Kinney
- USC Keck School of Medicine, Los Angeles, California, USA
| | | |
Collapse
|
8
|
Loyola-Leyva A, Hernández-Vidales K, Loyola-Rodríguez JP, González FJ. Noninvasive Glucose Measurements Through Transcutaneous Raman Spectroscopy: A Review. J Diabetes Sci Technol 2024; 18:460-469. [PMID: 35815609 DOI: 10.1177/19322968221109612] [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: 11/15/2022]
Abstract
BACKGROUND People living with diabetes need constant glucose monitoring to avoid health complications. However, they do not monitor their glucose levels as often as recommended, probably because glucose measurement devices can be painful, costly, need testing strips or sensors, require lancing the finger or inserting a sensor with risk of infection, and can be inaccurate or have failures. Therefore, developing new alternatives for noninvasive glucose measurements that overcome these disadvantages is necessary, being Raman spectroscopy (RS) a solution. OBJECTIVE This review aims to provide an overview of the current glucose-monitoring technologies and the uses and advantages of RS to improve noninvasive transcutaneously glucose-monitoring devices. RESULTS The skin has been used to assess glucose levels noninvasively because it is an accessible tissue where glucose can be measured in the interstitial fluid (ISF) in the epidermis (especially in the stratum corneum). The most selected skin sites to apply RS for noninvasive glucose measurements were the nailfold, finger, and forearm because, in these sites, the penetration depth of the excitation light can reach the stratum corneum (10-20 µm) and the ISF. Studies found that RS is a good optical technique to measure glucose noninvasively by comparing glucose levels obtained by RS with those from invasive methods such as glucose meters with testing strips during an oral glucose tolerance test (OGTT). CONCLUSIONS New alternatives for noninvasive glucose measurements that overcome the disadvantages of current devices is necessary, and RS is a possible solution. However, more research is needed to evaluate the stability, accuracy, costs, and acceptance.
Collapse
Affiliation(s)
- Alejandra Loyola-Leyva
- Terahertz Science and Technology National Lab, Coordination for Innovation and Application of Science and Technology, San Luis Potosi, México
| | | | | | - Francisco Javier González
- Terahertz Science and Technology National Lab, Coordination for Innovation and Application of Science and Technology, San Luis Potosi, México
| |
Collapse
|
9
|
Oladokun S, Adewole D. Research Note: Non-invasive urate sphere corticosterone metabolite as a novel biomarker for heat stress in poultry. Poult Sci 2024; 103:103439. [PMID: 38262337 PMCID: PMC10835460 DOI: 10.1016/j.psj.2024.103439] [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: 09/26/2023] [Revised: 12/27/2023] [Accepted: 01/04/2024] [Indexed: 01/25/2024] Open
Abstract
Heat stress (HS) poses a critical concern for the global poultry industry. To better understand its impact and mechanism on poultry species, as well as to develop effective HS mitigation options, it is crucial to validate reliable and effective biomarkers of HS. In this study, broiler chickens (96 mixed-sex, 1-day-old) were randomly assigned to 2 environmental conditions: HS at 31°C for 8 h/d versus a thermoneutral condition (TN) at 24°C ± 0.2 throughout the day, from d 21 to d 28. After 7 d of cyclic HS, blood serum samples and the urate sphere (the white portion of the chicken excreta) were collected to measure specific HS biomarkers, including corticosterone, heat shock protein 70 (HSP70), Triiodothyronine (T3), and urate sphere corticosterone metabolite. The results showed that the concentrations of HSP70, T3, and serum corticosterone were not significantly different (P > 0.05) between the heat-stressed and thermoneutral birds in this study. However, heat-stressed birds recorded higher (P < 0.01) concentration (pg/mL) of urate corticosterone metabolite compared to TN birds. Data presented here thus provide preliminary evidence suggesting the use of non-invasive urate sphere corticosterone metabolite as a heat stress biomarker in poultry.
Collapse
Affiliation(s)
- Samson Oladokun
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Deborah Adewole
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
| |
Collapse
|
10
|
Cheng Y, Li T, Wu X, Du G, Xu S. A novel predictive model for noninvasively diagnosing bladder outlet obstruction in female patients based on clinical features and uroflowmetry parameters. Int J Gynaecol Obstet 2024. [PMID: 38415782 DOI: 10.1002/ijgo.15430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 10/17/2023] [Accepted: 01/30/2024] [Indexed: 02/29/2024]
Abstract
OBJECTIVE To develop and validate a simple prediction model to diagnose female bladder outlet obstruction (fBOO) because of the invasive nature of standard urodynamic studies (UDS) for diagnosing fBOO. METHODS We retrospectively analyzed the data of 728 women who underwent UDS at Tongji Hospital between 2011 and 2021. The definition of fBOO was Pdet.Qmax - 2.2 × Qmax > 5 (BOOIf > 5). Independent predictive factors of fBOO were determined by multivariable logistic regression analysis. These predictive factors were incorporated into a predictive model to assess the risk of fBOO. RESULTS Of the 728 patients, 249 (34.2%) were identified as having fBOO and these women were randomly assigned to two groups, a model development group and a model validation group. Multivariate logistic regression demonstrated that age, Qmax , flow time, and voiding efficiency were independent risk factors for fBOO. The predictive model of fBOO showed a satisfactory performance, with area under the curve being 0.811 (95% confidence interval [CI] 0.771-0.850, P < 0.001), which was confirmed to be 0.820 (95% CI 0.759-0.882, P < 0.001) with external validation. The calibration curve indicated that the predicted probability had an excellent correspondence to observed frequency. Decision curve analysis demonstrated a greater clinical net benefit compared with the strategies of treat all or treat none when the predicted risk was in a range of 3% and 75%. CONCLUSION A novel predictive model of fBOO was developed and validated based on clinical features and noninvasive test parameters in female patients with lower urinary tract symptoms. The model is a quick and easy-to-use tool to assess the risk of fBOO for urologists in their routine practice without an invasive UDS.
Collapse
Affiliation(s)
- Yu Cheng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Taicheng Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoyu Wu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Guanghui Du
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shengfei Xu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| |
Collapse
|
11
|
Yao T, Ren L, Yuan B. Ultrasound-switchable fluorescence thermometry with dual detection channels using temperature-sensitive liposomes. J Biophotonics 2024:e202300531. [PMID: 38414356 DOI: 10.1002/jbio.202300531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/29/2024]
Abstract
Temperature measurements in biological tissues play a crucial role in studying metabolic activities. In this study, we introduce a noninvasive thermometry technique based on two-color ultrasound-switchable fluorescence (USF). This innovative method allows for a local temperature mapping within a microtube filled with temperature-sensitive liposomes as nano imaging agents. By measuring the temperature-dependent fluorescence emission of the liposomes using a spectrometer, we identify four characteristic temperatures. The local background temperature can be estimated by analyzing the corresponding appearance time of these four characteristic temperatures in the dynamic USF signals captured by a camera-based USF system with two detection channels. Simultaneous measurements with an infrared (IR) camera showed a 0.38°C ± 0.27°C difference between USF thermometry and IR thermography in a physiological temperature range of 36.48°C-40.14°C. This shows that the two-color USF thermometry technique is a reliable, noninvasive tool with excellent spatial and thermal resolution.
Collapse
Affiliation(s)
- Tingfeng Yao
- Ultrasound and Optical Imaging Laboratory, Department of Bioengineering, The University of Texas at Arlington, Arlington, Texas, USA
- Joint Biomedical Engineering Program, The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Liqin Ren
- Ultrasound and Optical Imaging Laboratory, Department of Bioengineering, The University of Texas at Arlington, Arlington, Texas, USA
- Joint Biomedical Engineering Program, The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Baohong Yuan
- Ultrasound and Optical Imaging Laboratory, Department of Bioengineering, The University of Texas at Arlington, Arlington, Texas, USA
- Joint Biomedical Engineering Program, The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| |
Collapse
|
12
|
Parks TV, Szczupak D, Choi SH, Schaeffer DJ. Noninvasive focal transgene delivery with viral neuronal tracers in the marmoset monkey. Cell Rep Methods 2024; 4:100709. [PMID: 38359822 PMCID: PMC10921014 DOI: 10.1016/j.crmeth.2024.100709] [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] [Received: 09/18/2023] [Revised: 12/14/2023] [Accepted: 01/23/2024] [Indexed: 02/17/2024]
Abstract
We establish a reliable method for selectively delivering adeno-associated viral vectors (AAVs) across the blood-brain barrier (BBB) in the marmoset without the need for neurosurgical injection. We focally perturbed the BBB (∼1 × 2 mm) in area 8aD of the frontal cortex in four adult marmoset monkeys using low-intensity transcranial focused ultrasound aided by microbubbles. Within an hour of opening the BBB, either AAV2 or AAV9 was delivered systemically via tail-vein injection. In all four marmosets, fluorescence-encoded neurons were observed at the site of BBB perturbation, with AAV2 showing a sparse distribution of transduced neurons when compared to AAV9. The results are compared to direct intracortical injections of anterograde tracers into area 8aD and similar (albeit sparser) long-range connectivity was observed. With evidence of transduced neurons specific to the region of BBB opening as well as long-distance tracing, we establish a framework for focal noninvasive transgene delivery to the marmoset brain.
Collapse
Affiliation(s)
- T Vincenza Parks
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Diego Szczupak
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sang-Ho Choi
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - David J Schaeffer
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, USA.
| |
Collapse
|
13
|
Aleisa A, Cordova M, Payulert C, Aldawood H, Lee EH, Nehal KS, Rossi AM. Combined reflectance confocal microscopy and optical coherence tomography in the evaluation of cutaneous squamous cell carcinoma. J Am Acad Dermatol 2024:S0190-9622(24)00314-1. [PMID: 38342245 DOI: 10.1016/j.jaad.2024.01.072] [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: 02/24/2023] [Revised: 01/12/2024] [Accepted: 01/23/2024] [Indexed: 02/13/2024]
Affiliation(s)
- Abdullah Aleisa
- Dermatology Division, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Dermatology, King Saud University, Riyadh, Saudi Arabia.
| | - Miguel Cordova
- Dermatology Division, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Catherine Payulert
- Dermatology Division, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Haifa Aldawood
- Department of Pediatrics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Erica H Lee
- Dermatology Division, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kishwer S Nehal
- Dermatology Division, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Anthony M Rossi
- Dermatology Division, Memorial Sloan Kettering Cancer Center, New York, New York
| |
Collapse
|
14
|
Zhou L, Yang Z, Guo L, Zou Q, Zhang H, Sun SK, Ye Z, Zhang C. Noninvasive Assessment of Kidney Injury by Combining Structure and Function Using Artificial Intelligence-Based Manganese-Enhanced Magnetic Resonance Imaging. ACS Appl Mater Interfaces 2024; 16:5474-5485. [PMID: 38271189 DOI: 10.1021/acsami.3c14936] [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: 01/27/2024]
Abstract
Contrast-enhanced magnetic resonance imaging (MRI) is seriously limited in kidney injury detection due to the nephrotoxicity of clinically used gadolinium-based contrast agents. Herein, we propose a noninvasive method for the assessment of kidney injury by combining structure and function information based on manganese (Mn)-enhanced MRI for the first time. As a proof of concept, the Mn-melanin nanoprobe with good biocompatibility and excellent T1 relaxivity is applied in MRI of a unilateral ureteral obstruction mice model. The abundant renal structure and function information is obtained through qualitative and quantitative analysis of MR images, and a brand new comprehensive assessment framework is proposed to precisely identify the degree of kidney injury successfully. Our study demonstrates that Mn-enhanced MRI is a promising approach for the highly sensitive and biosafe assessment of kidney injury in vivo.
Collapse
Affiliation(s)
- Li Zhou
- Department of Radiology, Tianjin Chest Hospital, Tianjin 300052, China
| | - Zizhen Yang
- Department of Radiology, Ningbo No.2 Hospital, Ningbo 315012, China
| | - Li Guo
- School of Medical Imaging, Tianjin Medical University, Tianjin 300203, China
| | - Quan Zou
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Hong Zhang
- Department of Radiology, Tianjin Chest Hospital, Tianjin 300052, China
| | - Shao-Kai Sun
- School of Medical Imaging, Tianjin Medical University, Tianjin 300203, China
| | - Zhaoxiang Ye
- Department of Radiology, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
| | - Cai Zhang
- Department of Radiology, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
| |
Collapse
|
15
|
Sanchez EM, Avery J, Gan J, Qian J, Mandal N, Agarwal A, Mwiinga M, Banda R, Darzi A, Kelly P, Thompson AJ. Transcutaneous fluorescence spectroscopy: development and characterization of a compact, portable, and fiber-optic sensor. J Biomed Opt 2024; 29:027003. [PMID: 38419754 PMCID: PMC10900991 DOI: 10.1117/1.jbo.29.2.027003] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/27/2023] [Accepted: 01/04/2024] [Indexed: 03/02/2024]
Abstract
Significance The integrity of the intestinal barrier is gaining recognition as a significant contributor to various pathophysiological conditions, including inflammatory bowel disease, celiac disease, environmental enteric dysfunction (EED), and malnutrition. EED, for example, manifests as complex structural and functional changes in the small intestine leading to increased intestinal permeability, inflammation, and reduced absorption of nutrients. Despite the importance of gut function, current techniques to assess intestinal permeability (such as endoscopic biopsies or dual sugar assays) are either highly invasive, unreliable, and/or difficult to perform in certain patient populations (e.g., infants). Aim We present a portable, optical sensor based on transcutaneous fluorescence spectroscopy to assess gut function (in particular, intestinal permeability) in a fast and noninvasive manner. Approach Participants receive an oral dose of a fluorescent contrast agent, and a wearable fiber-optic probe detects the permeation of the contrast agent from the gut into the blood stream by measuring the fluorescence intensity noninvasively at the fingertip. We characterized the performance of our compact optical sensor by comparing it against an existing benchtop spectroscopic system. In addition, we report results from a human study in healthy volunteers investigating the impact of skin tone and contrast agent dose on transcutaneous fluorescence signals. Results The first study with eight healthy participants showed good correlation between our compact sensor and the existing benchtop spectroscopic system [correlation coefficient ( r ) > 0.919 , p < 0.001 ]. Further experiments in 14 healthy participants revealed an approximately linear relationship between the ingested contrast agent dose and the collected signal intensity. Finally, a parallel study on the impact of different skin tones showed no significant differences in signal levels between participants with different skin tones (p > 0.05 ). Conclusions In this paper, we demonstrate the potential of our compact transcutaneous fluorescence sensor for noninvasive monitoring of intestinal health.
Collapse
Affiliation(s)
- Elena Monfort Sanchez
- Institute of Global Health Innovation, Imperial College London, The Hamlyn Centre, London, United Kingdom
- St. Mary’s Hospital Campus, Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - James Avery
- Institute of Global Health Innovation, Imperial College London, The Hamlyn Centre, London, United Kingdom
- St. Mary’s Hospital Campus, Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Jonathan Gan
- St. Mary’s Hospital Campus, Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Jingjing Qian
- Institute of Global Health Innovation, Imperial College London, The Hamlyn Centre, London, United Kingdom
| | - Nilanjan Mandal
- Institute of Global Health Innovation, Imperial College London, The Hamlyn Centre, London, United Kingdom
- St. Mary’s Hospital Campus, Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Arjun Agarwal
- St. Mary’s Hospital Campus, Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Mulima Mwiinga
- University of Zambia School of Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia
| | - Rose Banda
- University of Zambia School of Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia
| | - Ara Darzi
- Institute of Global Health Innovation, Imperial College London, The Hamlyn Centre, London, United Kingdom
- St. Mary’s Hospital Campus, Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Paul Kelly
- University of Zambia School of Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia
- Queen Mary University of London, Blizard Institute, London, United Kingdom
| | - Alex J. Thompson
- Institute of Global Health Innovation, Imperial College London, The Hamlyn Centre, London, United Kingdom
- St. Mary’s Hospital Campus, Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| |
Collapse
|
16
|
de Bruyn DP, van Poppelen NM, Brands T, van den Boom SC, Eikenboom E, Wagner A, van Veghel-Plandsoen MM, Geeven G, Beverloo B, van Rij CM, Verdijk RM, Naus NC, Bagger MM, Kiilgaard JF, de Klein A, Brosens E, Kiliç E. Evaluation of Circulating Tumor DNA as a Liquid Biomarker in Uveal Melanoma. Invest Ophthalmol Vis Sci 2024; 65:11. [PMID: 38319670 PMCID: PMC10854420 DOI: 10.1167/iovs.65.2.11] [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: 06/29/2023] [Accepted: 11/14/2023] [Indexed: 02/07/2024] Open
Abstract
Purpose Uveal melanoma (UM) has a high propensity to metastasize. Prognosis is associated with specific driver mutations and copy number variations (CNVs), but limited primary tumor tissue is available for molecular characterization due to eye-sparing irradiation treatment. This study aimed to assess the rise in circulating tumor DNA (ctDNA) levels in UM and evaluate its efficacy for CNV-profiling of patients with UM. Methods In a pilot study, we assessed ctDNA levels in the blood of patients with UM (n = 18) at various time points, including the time of diagnosis (n = 13), during fractionated stereotactic radiotherapy (fSRT) treatment (n = 6), and upon detection of metastatic disease (n = 13). Shallow whole-genome sequencing (sWGS) combined with in silico size-selection was used to identify prognostically relevant CNVs in patients with UM (n = 26) from peripheral blood retrieved at the time of diagnosis (n = 9), during fSRT (n = 5), during post-treatment follow-up (n = 4), metastasis detection (n = 6), and metastasis follow-up (n = 4). Results A total of 34 patients had blood analyzed for ctDNA detection (n = 18) and/or CNV analysis (n = 26) at various time points. At the time of diagnosis, 5 of 13 patients (38%) had detectable ctDNA (median = 0 copies/mL). Upon detection of metastatic disease, ctDNA was detected in 10 of 13 patients (77%) and showed increased ctDNA levels (median = 24 copies/mL, P < 0.01). Among the six patients analyzed during fSRT, three (50%) patients had detectable ctDNA at baseline and three of six (50%) patients had undetectable levels of ctDNA. During the fSRT regimen, ctDNA levels remained unchanged (P > 0.05). The ctDNA fractions were undetectable to low in localized disease, and sWGS did not elucidate chromosome 3 status from blood samples. However, in 7 of 10 (70%) patients with metastases, the detection of chromosome 3 loss corresponded to the high metastatic-risk class. Conclusions The rise in ctDNA levels observed in patients with UM harboring metastases suggests its potential utility for CNV profiling. These findings highlight the potential of using ctDNA for metastasis detection and patient inclusion in therapeutic studies targeting metastatic UM.
Collapse
Affiliation(s)
- Daniel P. de Bruyn
- Department of Ophthalmology, Erasmus MC, Rotterdam, The Netherlands
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
- Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Natasha M. van Poppelen
- Department of Ophthalmology, Erasmus MC, Rotterdam, The Netherlands
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
- Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Tom Brands
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | | | - Ellis Eikenboom
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Anja Wagner
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | | | - Geert Geeven
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Berna Beverloo
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Caroline M. van Rij
- Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
- Department of Radiation Oncology, Erasmus MC, Rotterdam, The Netherlands
| | - Robert M. Verdijk
- Department of Pathology, Section Ophthalmic Pathology, Erasmus MC, Rotterdam, The Netherlands
- Department of Pathology, LUMC, Leiden, The Netherlands
| | - Nicole C. Naus
- Department of Ophthalmology, Erasmus MC, Rotterdam, The Netherlands
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Mette M. Bagger
- Department of Ophthalmology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
- Department of Clinical Genetics, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
| | - Jens F. Kiilgaard
- Department of Ophthalmology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
| | - Annelies de Klein
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
- Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Erwin Brosens
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
- Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Emine Kiliç
- Department of Ophthalmology, Erasmus MC, Rotterdam, The Netherlands
- Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
| |
Collapse
|
17
|
Tabone T, Mooney P, Donnellan C. Intestinal failure-associated liver disease: Current challenges in screening, diagnosis, and parenteral nutrition considerations. Nutr Clin Pract 2024. [PMID: 38245851 DOI: 10.1002/ncp.11116] [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: 07/26/2023] [Revised: 12/19/2023] [Accepted: 12/25/2023] [Indexed: 01/22/2024] Open
Abstract
Intestinal failure-associated liver disease (IFALD) is a serious life-limiting complication that can occur throughout the clinical course of intestinal failure and its management by parenteral nutrition (PN). Despite this, there is a lack of a standardized definition for IFALD, which makes this insidious condition increasingly difficult to screen and diagnose in clinical practice. Attenuating the progression of liver disease before the onset of liver failure is key to improving morbidity and mortality in these patients. This requires timely detection and promptly addressing reversible factors. Although there are various noninvasive tools available to the clinician to detect early fibrosis or cirrhosis in various chronic liver disease states, these have not been validated in the patient population with IFALD. Such tools include biochemical composite scoring systems for fibrosis, transient elastography, and dynamic liver function tests. This review article aims to highlight the existing real need for an accurate, reproducible method to detect IFALD in its early stages. In addition, we also explore the role PN plays in the pathogenesis of this complex multifactorial condition. Various aspects of PN administration have been implicated in the etiology of IFALD, including the composition of the lipid component, nutrient excess and deficiency, and infusion timing. We aim to highlight the clinical relevance of these PN-associated factors in the development of IFALD and how these can be managed to mitigate the progression of IFALD.
Collapse
Affiliation(s)
- Trevor Tabone
- Department of Gastroenterology, St James University Hospital, Leeds, United Kingdom
| | - Peter Mooney
- Department of Gastroenterology, St James University Hospital, Leeds, United Kingdom
| | - Clare Donnellan
- Department of Gastroenterology, St James University Hospital, Leeds, United Kingdom
| |
Collapse
|
18
|
Zhang S, Cai L, Zhong H, Yang B, Song W, Jia H, Chen S, Zhu F, Li J, Yang C. Prognostic value of virtual portal pressure gradient response in compensated cirrhotic patients treated with carvedilol. Hepatol Res 2024; 54:78-90. [PMID: 37668257 DOI: 10.1111/hepr.13963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/06/2023] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
AIM This study aimed to assess the prognostic significance of virtual portal pressure gradient (vPPG) response to carvedilol in patients with compensated cirrhosis (CC). METHODS Compensated cirrhosis patients with high-risk varices were prospectively enrolled to receive carvedilol for prevention of first variceal hemorrhage (VH) and followed up for 1 year. The vPPG response was defined as a reduction of vPPG >10% from baseline after 1-month therapy. Logistic and Cox regression analyses were performed to identify independent predictors for vPPG response and first decompensation, respectively. Competitive risk models were constructed to predict disease progression, and validated using the C-index, Kaplan-Meier analysis, competitive risk analysis, and calibration curves. RESULTS A total of 129 patients completed this study, of whom 56 (43.4%) achieved vPPG response and were referred as vPPG responders. Baseline vPPG, red color sign, Model for End-stage Liver Disease score, serum monocyte chemoattractant protein-1 (MCP-1), and laminin levels significantly correlated with vPPG response, which itself was further documented as an independent predictor of VH, ascites, and overall decompensation events in CC. Moreover, the red color sign or Child-Turcotte-Pugh score effectively predicted VH, while ascites correlated well with portal flow velocity or MCP-1. The predictive models for VH and ascites showed a good discrimination with C-index values of 0.747 and 0.689 respectively, and the high consistency on calibration curves. CONCLUSION The vPPG response could be used as a noninvasive tool for prediction of disease progression in patients with CC.
Collapse
Affiliation(s)
- Shuo Zhang
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Li Cai
- Department of Science and Research, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hui Zhong
- Department of Infectious Diseases, Fengxian Guhua Hospital, Shanghai, China
| | - Bo Yang
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Weiping Song
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Haoyu Jia
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shuai Chen
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Fengshang Zhu
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jing Li
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Changqing Yang
- Department of Gastroenterology and Hepatology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| |
Collapse
|
19
|
Han X, Wang F, Shen J, Chen S, Xiao P, Zhu Y, Yi W, Zhao Z, Cai Z, Cui W, Bai D. Ultrasound Nanobubble Coupling Agent for Effective Noninvasive Deep-Layer Drug Delivery. Adv Mater 2024; 36:e2306993. [PMID: 37851922 DOI: 10.1002/adma.202306993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 10/17/2023] [Indexed: 10/20/2023]
Abstract
Conventional coupling agents (such as polyvinylpyrrolidone, methylcellulose, and polyurethane) are unable to efficiently transport drugs through the skin's dual barriers (the epidermal cuticle barrier and the basement membrane barrier between the epidermis and dermis) when exposed to ultrasound, hindering deep and noninvasive transdermal drug delivery. In this study, nanobubbles prepared by the double emulsification method and aminated hyaluronic acid are crosslinked with aldehyde-based hyaluronic acid by dynamic covalent bonding through the Schiff base reaction to produce an innovative ultrasound-nanobubble coupling agent. By amplifying the cavitation effect of ultrasound, drugs can be efficiently transferred through the double barrier of the skin and delivered to deep layers. In an in vitro model of isolated porcine skin, this agent achieves an effective penetration depth of 728 µm with the parameters of ultrasound set at 2 W, 650 kHz, and 50% duty cycle for 20 min. Consequently, drugs can be efficiently delivered to deeper layers noninvasively. In summary, this ultrasound nanobubble coupling agent efficiently achieves deep-layer drug delivery by amplifying the ultrasonic cavitation effect and penetrating the double barriers, heralding a new era for noninvasive drug delivery platforms and disease treatment.
Collapse
Affiliation(s)
- Xiaoyu Han
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Fan Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and, Orthopaedics Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Jieliang Shen
- Department of Rehabilitation Medicine, Bishan Hospital of Chongqing Medical University, Bishan Hospital of Chongqing, Chongqing, 402760, China
| | - Shuyu Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Pengcheng Xiao
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Ying Zhu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Weiwei Yi
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Zhengyu Zhao
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and, Orthopaedics Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Zhengwei Cai
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and, Orthopaedics Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and, Orthopaedics Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Dingqun Bai
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
- State Key Laboratory of Ultrasound in Medicine and, Engineering Chongqing Medical University, Chongqing, 400016, China
| |
Collapse
|
20
|
Osman MM, Mullins E, Kleprlikova H, Wilkinson IB, Lees C. Beetroot juice, exercise, and cardiovascular function in women planning to conceive. J Hypertens 2024; 42:101-108. [PMID: 37728100 PMCID: PMC10713001 DOI: 10.1097/hjh.0000000000003562] [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: 03/05/2023] [Revised: 07/13/2023] [Accepted: 08/22/2023] [Indexed: 09/21/2023]
Abstract
OBJECTIVE Prepregnancy optimization of cardiovascular function may reduce the risk of pre-eclampsia. We aimed to assess the feasibility and effect of preconception cardiovascular monitoring, exercise, and beetroot juice on cardiovascular parameters in women planning to conceive. DESIGN AND METHOD Prospective single-site, open-label, randomized controlled trial. Thirty-two women, aged 18-45 years, were allocated into one of four arms (1 : 1 : 1 : 1): exercise, beetroot juice, exercise plus beetroot juice and no intervention for 12 weeks. Blood pressure (BP) was measured at home daily. Cardiac output ( CO ) and total peripheral resistance (TPR) were assessed via bio-impedance. RESULTS Twenty-nine out of 32 (91%) participants completed the study. Adherence to daily BP and weight measurements were 81% and 78%, respectively ( n = 29). Eight out of 15 (53%) of participants did not drink all the provided beetroot juice because of forgetfulness and taste. After 12 weeks, exercise was associated with a reduction in standing TPR (-278 ± 0.272 dynes s cm -5 , P < 0.05), and an increase in standing CO (+0.88 ± 0.71 l/min, P < 0.05). Exercise and beetroot juice together was associated with a reduction in standing DBP ( 7 ± 6 mmHg, P < 0.05), and an increase in standing CO (+0.49 ± 0.66 l/min, P < 0.05). The control group showed a reduction in standing TPR ( 313 ± 387 dynes s cm -5 ) and standing DBP ( 8 ± 5mmHg). All groups gained weight. CONCLUSION Exercise and beetroot juice in combination showed a signal towards improving cardiovascular parameters. The control group showed improvements, indicating that home measurement devices and regular recording of parameters are interventions in themselves. Nevertheless, interventions before pregnancy to improve cardiovascular parameters may alter the occurrence of hypertensive conditions during pregnancy and require further investigation in adequately powered studies.
Collapse
Affiliation(s)
| | - Edward Mullins
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London
- The George Institute for Global Health
| | - Hana Kleprlikova
- Women's Health Research Centre, Queen Charlotte's and Chelsea Hospital, London
- NHS North West London Clinical Commissioning Group, UK
- Department of General Anthropology, Faculty of Humanities, Charles University in Prague, Czechia
| | - Ian B. Wilkinson
- Division of Experimental Medicine and Immunotherapeutics, Department of Medicine, University of Cambridge, Cambridge
| | - Christoph Lees
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London
| |
Collapse
|
21
|
Biesman BS, Capelli CC. Comparing safety and efficacy of acoustic subcision at two different rapid acoustic pulse rates to improve the appearance of cellulite. Lasers Surg Med 2024; 56:32-38. [PMID: 37694399 DOI: 10.1002/lsm.23718] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/02/2023] [Accepted: 08/13/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND A recent study showed the safety and efficacy of a noninvasive acoustic subcision device to improve the appearance of cellulite via delivery of rapid acoustic pulses in a single treatment visit. OBJECTIVE To evaluate and compare the safety and efficacy of a single rapid acoustic pulse treatment visit using an equivalent number of rapid acoustic pulses at a pulse rate of 100 or 50 Hz. METHODS This single-center, prospective study enrolled 15 adult women with moderate to severe cellulite according to the Cellulite Dimple-At Rest Scale. Each participant would receive nominally 72,000 rapid acoustic pulses at a pulse rate of 50 Hz on the left buttock and thigh, and nominally 72,000 rapid acoustic pulses at a pulse rate of 100 Hz on the right buttock and thigh within one treatment visit. Efficacy was assessed by the ability of blinded, independent reviewers to correctly distinguish the pre- and post-treatment photos, participant satisfaction, and the change in Cellulite Dimple-At Rest scores for each treatment side. Safety was monitored throughout the conduct of the study. RESULTS For both 100 and 50 Hz pulse rate treated areas, the majority (two out of three) of blinded reviewers correctly identified 100% of the pre/post-treatment photos. For both the 100 and 50 Hz treated areas, 80% of participants agreed/strongly agreed that their cellulite appeared improved at the 12-week follow-up visit. Significant improvements in Cellulite Dimple-At Rest scores were seen for both the 100 and 50 Hz treated areas. All participants thought both the 100 and 50 Hz pulse rate treatments were tolerable, and the pain (mean score ± SD; 2.2 ± 1.2) associated with each was identical. No unexpected or serious adverse events occurred. CONCLUSION Acoustic subcision delivered via rapid acoustic pulses at 100 Hz, compared to 50 Hz, provides equivalent improvement in the appearance of cellulite while maintaining a similar safety and efficacy profile. For both pulse rates, treatment pain was minimal, and participant satisfaction was high.
Collapse
Affiliation(s)
- Brian S Biesman
- Department of Ophthalmology, Dermatology, and Otolaryngology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | | |
Collapse
|
22
|
Zhang N, Tang L, Zhang L, Wang Q, Zhao L, Liu X, Hua Y, Duan H, Shao S, Zhou K, Wang C. Evaluation of left ventricular stiffness with echocardiography. Echocardiography 2024; 41:e15737. [PMID: 38284673 DOI: 10.1111/echo.15737] [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: 04/11/2023] [Revised: 11/25/2023] [Accepted: 12/22/2023] [Indexed: 01/30/2024] Open
Abstract
Half of patients with heart failure are presented with preserved ejection fraction (HFpEF). The pathophysiology of these patients is complex, but increased left ventricular (LV) stiffness has been proven to play a key role. However, the application of this parameter is limited due to the requirement for invasive catheterization for its measurement. With advances in ultrasound technology, significant progress has been made in the noninvasive assessment of LV chamber or myocardial stiffness using echocardiography. Therefore, this review aims to summarize the pathophysiological mechanisms, correlations with invasive LV stiffness constants, applications in different populations, as well as the limitations of echocardiography-derived indices for the assessment of both LV chamber and myocardial stiffness. Indices of LV chamber stiffness, such as the ratio of E/e' divided by left ventricular end-diastolic volume (E/e'/LVEDV), the ratio of E/SRe (early diastolic strain rates)/LVEDV, and diastolic pressure-volume quotient (DPVQ), are derived from the relationship between echocardiographic parameters of LV filling pressure (LVFP) and LV size. However, these methods are surrogate and lumped measurements, relying on E/e' or E/SRe for evaluating LVFP. The limitations of E/e' or E/SRe in the assessment of LVFP may contribute to the moderate correlation between E/e'/LVEDV or E/SRe/LVEDV and LV stiffness constants. Even the most validated measurement (DPVQ) is considered unreliable in individual patients. In comparison to E/e'/LVEDV and E/SRe/LVEDV, indices like time-velocity integral (TVI) measurements of pulmonary venous and transmitral flows may demonstrate better performance in assessing LV chamber stiffness, as evidenced by their higher correlation with LV stiffness constants. However, only one study has been conducted on the exploration and application of TVI in the literature, and the accuracy of assessing LV chamber stiffness remains to be confirmed. Regarding echocardiographic indices for LV myocardial stiffness evaluation, parameters such as epicardial movement index (EMI)/ diastolic wall strain (DWS), intrinsic velocity propagation of myocardial stretch (iVP), and shear wave imaging (SWI) have been proposed. While the alteration of DWS and its predictive value for adverse outcomes in various populations have been widely validated, it has been found that DWS may be better considered as an overall marker of cardiac function performance rather than pure myocardial stiffness. Although the effectiveness of iVP and SWI in assessing left ventricular myocardial stiffness has been demonstrated in animal models and clinical studies, both indices have their limitations. Overall, it seems that currently no echocardiography-derived indices can reliably and accurately assess LV stiffness, despite the development of several parameters. Therefore, a comprehensive evaluation of LV stiffness using all available parameters may be more accurate and enable earlier detection of alterations in LV stiffness.
Collapse
Affiliation(s)
- Nanjun Zhang
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- West China Medical School of Sichuan University, Chengdu, Sichuan, China
| | - Liting Tang
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- West China Medical School of Sichuan University, Chengdu, Sichuan, China
| | - Linling Zhang
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- West China Medical School of Sichuan University, Chengdu, Sichuan, China
| | - Qinhui Wang
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- West China Medical School of Sichuan University, Chengdu, Sichuan, China
| | - Li Zhao
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- West China Medical School of Sichuan University, Chengdu, Sichuan, China
| | - Xiaoliang Liu
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education Chengdu, Sichuan, China
- Key Laboratory of Development and Diseases of Women and Children of Sichuan Province, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yimin Hua
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education Chengdu, Sichuan, China
- Key Laboratory of Development and Diseases of Women and Children of Sichuan Province, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hongyu Duan
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education Chengdu, Sichuan, China
- Key Laboratory of Development and Diseases of Women and Children of Sichuan Province, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shuran Shao
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education Chengdu, Sichuan, China
- Key Laboratory of Development and Diseases of Women and Children of Sichuan Province, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Kaiyu Zhou
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education Chengdu, Sichuan, China
- Key Laboratory of Development and Diseases of Women and Children of Sichuan Province, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chuan Wang
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education Chengdu, Sichuan, China
- Key Laboratory of Development and Diseases of Women and Children of Sichuan Province, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| |
Collapse
|
23
|
Ilomäki MA, Polari L, Stenvall CGA, Tayyab M, Kähärä K, Ridge KM, Toivola DM. Defining a timeline of colon pathologies after keratin 8 loss: rapid crypt elongation and diarrhea are followed by epithelial erosion and cell exfoliation. Am J Physiol Gastrointest Liver Physiol 2024; 326:G67-G77. [PMID: 37962942 DOI: 10.1152/ajpgi.00140.2023] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/27/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023]
Abstract
Keratins are epithelial intermediate filament proteins that play a crucial role in cellular stress protection, with K8 being the most abundant in the colon. The intestinal epithelial-specific K8-deficient mouse model (K8flox/flox;Villin-Cre) exhibits characteristics of inflammatory bowel disease, including diarrhea, crypt erosion, hyperproliferation, and decreased barrier function. Nevertheless, the order in which these events occur and whether they are a direct cause of K8 loss or a consequence of one event inducing another remains unexplored. Increased knowledge about early events in the disruption of colon epithelial integrity would help to understand the early pathology of inflammatory and functional colon disorders and develop preclinical models and diagnostics of colonic diseases. Here, we aimed to characterize the order of physiological events after Krt8 loss by utilizing K8flox/flox;Villin-CreERt2 mice with tamoxifen-inducible Krt8 deletion in intestinal epithelial cells, and assess stool analysis as a noninvasive method to monitor real-time gene expression changes following Krt8 loss. K8 protein was significantly decreased within a day after induction, followed by its binding partners, K18 and K19 from day 4 onward. The sequential colonic K8 downregulation in adult mice leads to immediate diarrhea and crypt elongation with activation of proliferation signaling, followed by crypt loss and increased neutrophil activity within 6-8 days, highlighting impaired water balance and crypt elongation as the earliest colonic changes upon Krt8 loss. Furthermore, epithelial gene expression patterns were comparable between colon tissue and stool samples, demonstrating the feasibility of noninvasive monitoring of gut epithelia in preclinical research utilizing Cre-LoxP-based intestinal disease models.NEW & NOTEWORTHY Understanding the order in which physiological and molecular events occur helps to recognize the onset of diseases and improve their preclinical models. We utilized Cre-Lox-based inducible keratin 8 deletion in mouse intestinal epithelium to characterize the earliest events after keratin 8 loss leading to colitis. These include diarrhea and crypt elongation, followed by erosion and neutrophil activity. Our results also support noninvasive methodology for monitoring colon diseases in preclinical models.
Collapse
Affiliation(s)
- Maria A Ilomäki
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Lauri Polari
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Carl-Gustaf A Stenvall
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Mina Tayyab
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Kirah Kähärä
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Karen M Ridge
- Division of Pulmonary and Critical Care Medicine, Northwestern University, Chicago, Illinois, United States
| | - Diana M Toivola
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
- Turku Center for Disease Modeling, University of Turku, Turku, Finland
| |
Collapse
|
24
|
Kovalak EE, Karacan T, Zengi O, Karabay Akgül Ö, Özyürek ŞE, Güraslan H. Evaluation of new biomarkers in stage III and IV endometriosis. Gynecol Endocrinol 2023; 39:2217290. [PMID: 37236244 DOI: 10.1080/09513590.2023.2217290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 11/23/2022] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
OBJECTIVE To investigate the efficacy of new endometriosis biomarkers in diagnosis and treatment. METHODS Thirty women with Stage III-IV endometriosis who were given an indication for surgery and 49 control patients were compared. Preoperative and postoperative serum levels of Annexin A5 (ANXA5), soluble intercellular adhesion molecule-1 (sICAM-1), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), soluble vascular cell adhesion molecule-1 (sVCAM-1), vascular endothelial growth factors (VEGF) and Ca-125 measurements were compared. RESULTS AUCs of ANXA5, sICAM-1, IL-6, TNF-α, VCAM-1, VEGF biomarkers were not found to be significant in diagnosing endometriosis when evaluated alone (p > 0.05). Only the AUC of the Ca-125 biomarker values were found to be significant with 73% sensitivity and 98% specificity (p < 0.001). However, when Ca-125 and ANXA5 were evaluated together, it was concluded that the diagnosis of endometriosis could be made with 73% sensitivity and 100% specificity. CONCLUSION When Ca-125 and ANXA5 are evaluated together, it seems to be more valuable than Ca-125 alone in diagnosing endometriosis.
Collapse
Affiliation(s)
- Evrim Ebru Kovalak
- Department of Obstetrics and Gynecology, University of Health Sciences, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Tolga Karacan
- Department of Obstetrics and Gynecology, University of Health Sciences, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Oğuzhan Zengi
- Department of Medical Biochemistry, University of Health Sciences, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
| | - Özlem Karabay Akgül
- Department of Obstetrics and Gynecology, University of Health Sciences, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Şefik Eser Özyürek
- Department of Gynecologic Oncology, University of Health Sciences, Zeynep Kâmil Women's and Children's Disease Training and Research Hospital, Istanbul, Turkey
| | - Hakan Güraslan
- Department of Obstetrics and Gynecology, University of Health Sciences, Bagcilar Training and Research Hospital, Istanbul, Turkey
| |
Collapse
|
25
|
Gao W, Gao X, Zhu L, Gao S, Sun R, Feng Z, Wu D, Liu Z, Zhu R, Jiao N. Multimodal metagenomic analysis reveals microbial single nucleotide variants as superior biomarkers for early detection of colorectal cancer. Gut Microbes 2023; 15:2245562. [PMID: 37635357 PMCID: PMC10464540 DOI: 10.1080/19490976.2023.2245562] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/29/2023] Open
Abstract
Microbial signatures show remarkable potentials in predicting colorectal cancer (CRC). This study aimed to evaluate the diagnostic powers of multimodal microbial signatures, multi-kingdom species, genes, and single-nucleotide variants (SNVs) for detecting precancerous adenomas. We performed cross-cohort analyses on whole metagenome sequencing data of 750 samples via xMarkerFinder to identify adenoma-associated microbial multimodal signatures. Our data revealed that fungal species outperformed species from other kingdoms with an area under the ROC curve (AUC) of 0.71 in distinguishing adenomas from controls. The microbial SNVs, including dark SNVs with synonymous mutations, displayed the strongest diagnostic capability with an AUC value of 0.89, sensitivity of 0.79, specificity of 0.85, and Matthews correlation coefficient (MCC) of 0.74. SNV biomarkers also exhibited outstanding performances in three independent validation cohorts (AUCs = 0.83, 0.82, 0.76; sensitivity = 1.0, 0.72, 0.93; specificity = 0.67, 0.81, 0.67, MCCs = 0.69, 0.83, 0.72) with high disease specificity for adenoma. In further support of the above results, functional analyses revealed more frequent inter-kingdom associations between bacteria and fungi, and abnormalities in quorum sensing, purine and butanoate metabolism in adenoma, which were validated in a newly recruited cohort via qRT-PCR. Therefore, these data extend our understanding of adenoma-associated multimodal alterations in the gut microbiome and provide a rationale of microbial SNVs for the early detection of CRC.
Collapse
Affiliation(s)
- Wenxing Gao
- Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai, P. R. China
| | - Xiang Gao
- Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai, P. R. China
| | - Lixin Zhu
- Guangdong Institute of Gastroenterology; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases; Biomedical Innovation Center, Sun Yat-Sen University, Guangzhou, P. R. China
- Department of General Surgery, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, P. R. China
| | - Sheng Gao
- Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai, P. R. China
| | - Ruicong Sun
- Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai, P. R. China
| | - Zhongsheng Feng
- Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai, P. R. China
| | - Dingfeng Wu
- National Clinical Research Center for Child Health, the Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, P. R. China
| | - Zhanju Liu
- Center for IBD Research, Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, P. R. China
| | - Ruixin Zhu
- Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai, P. R. China
- Research Institute, GloriousMed Clinical Laboratory Co, Ltd, Shanghai, P. R. China
| | - Na Jiao
- National Clinical Research Center for Child Health, the Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, P. R. China
| |
Collapse
|
26
|
Mehlman Y, Valledor AF, Moeller C, Rubinstein G, Lotan D, Rahman S, Oh KT, Bae D, DeFilippis EM, Lin EF, Lee SH, Raikhelkar JK, Fried J, Theodoropoulos K, Colombo PC, Yuzefpolskaya M, Latif F, Clerkin KJ, Sayer GT, Uriel N. The utilization of molecular microscope in management of heart transplant recipients in the era of noninvasive monitoring. Clin Transplant 2023; 37:e15131. [PMID: 37897211 DOI: 10.1111/ctr.15131] [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: 06/01/2023] [Revised: 09/03/2023] [Accepted: 09/06/2023] [Indexed: 10/29/2023]
Abstract
INTRODUCTION Monitoring for graft rejection is a fundamental tenet of post-transplant follow-up. In heart transplantation (HT) in particular, rejection has been traditionally assessed with endomyocardial biopsy (EMB). EMB has potential complications and noted limitations, including interobserver variability in interpretation. Additional tests, such as basic cardiac biomarkers, cardiac imaging, gene expression profiling (GEP) scores, donor-derived cell-free DNA (dd-cfDNA) and the novel molecular microscope diagnostic system (MMDx) have become critical tools in rejection surveillance beyond standard EMB. METHODS This paper describes an illustrative case followed by a review of MMDx within the context of other noninvasive screening modalities for rejection. CONCLUSIONS We suggest MMDx be used to assist with early detection of rejection in cases of discordance between EMB and other noninvasive studies.
Collapse
Affiliation(s)
- Yonatan Mehlman
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Andrea Fernendez Valledor
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Cathrine Moeller
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Gal Rubinstein
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Dor Lotan
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Salwa Rahman
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Kyung T Oh
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - David Bae
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Ersilia M DeFilippis
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Edward F Lin
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Sun Hi Lee
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Jayant K Raikhelkar
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Justin Fried
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Kleanthis Theodoropoulos
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Paolo C Colombo
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Melana Yuzefpolskaya
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Farhana Latif
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Kevin J Clerkin
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Gabriel T Sayer
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| | - Nir Uriel
- Division of Cardiology, Center for Advanced Cardiac Care, Columbia University Irving Medical Center, New York, New York, USA
| |
Collapse
|
27
|
Hedström E, Piek M, Bidhult-Johansson S, Ryd D, Testud F, Töger J, Aletras AH. Factors affecting performance of fetal blood T 2 measurements for noninvasive estimation of oxygen saturation. Magn Reson Med 2023; 90:2472-2485. [PMID: 37582228 DOI: 10.1002/mrm.29821] [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: 04/03/2023] [Revised: 06/19/2023] [Accepted: 07/18/2023] [Indexed: 08/17/2023]
Abstract
PURPOSE To ultimately make accurate and precise fetal noninvasive oxygen saturation (sO2 ) measurements by T2 -prepared bSSFP more widely available by systematically assessing error sources in order to potentially reduce perinatal mortality in cardiovascular malformations and fetal growth restriction. METHODS T2 -prepared bSSFP data were acquired in phantoms; in flowing blood in adults in the superior sagittal sinus, ascending and descending aorta, and main pulmonary artery; and in the fetal descending aorta and umbilical vein. T2 was assessed in relation to T2 two- or three-parameter curve-fitting techniques, SSFP readout, refocusing time delay (τ), constant and pulsatile blood flow, and impact of T1 recovery. Further, fetal T2 and sO2 variability were quantified in the descending aorta and umbilical vein in healthy fetuses and fetuses with cardiovascular malformation (gestational weeks 32-38). RESULTS In phantoms, three-parameter fitting was accurate irrespective of phase FOV (<4 ms; i.e., <2%), and T2 was overestimated (up to 23 ms/10%; p = 0.001) beyond ±30 Hz off-resonance. In the adult aorta, T2 was underestimated during higher blood flow velocities and pulsatility for τ = 16 ms (-41 ms/-17%; p = 0.008). In fetuses, two-parameter fitting overestimated T2 compared with three-parameter fitting (+33 ms/+18%; p = 0.03). T2 variability was 18 ms/15% in the fetal descending aorta and 28 ms/14% in the umbilical vein. The resulting estimated sO2 variability was ∼10% (15% of sO2 value) in the fetal descending aorta. CONCLUSIONS Errors due to T2 -fitting techniques, off-resonance, flow velocity, and insufficient T1 recovery between image acquisitions could be mitigated by using three-parameter fitting with included saturation-prepared images approximating infinite T2 -preparation time, adequate shimming covering the fetus and placenta, and by modifying acquisition parameters. Variability in fetal blood T2 and sO2 , however, indicate that it is currently not feasible to use these methods for prediction of disease.
Collapse
Affiliation(s)
- Erik Hedström
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Diagnostic Radiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Clinical Physiology and Nuclear Medicine, Skåne University Hospital, Lund, Sweden
- Department of Radiology, Skåne University Hospital, Lund, Sweden
| | - Marjolein Piek
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Clinical Physiology and Nuclear Medicine, Skåne University Hospital, Lund, Sweden
| | | | - Daniel Ryd
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Clinical Physiology and Nuclear Medicine, Skåne University Hospital, Lund, Sweden
| | | | - Johannes Töger
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Anthony H Aletras
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Laboratory of Computing, Medical Informatics and Biomedical-Imaging Technologies, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| |
Collapse
|
28
|
Sampa MB, Biswas T, Rahman MS, Aziz NHBA, Hossain MN, Aziz NAA. A Machine Learning Web App to Predict Diabetic Blood Glucose Based on a Basic Noninvasive Health Checkup, Sociodemographic Characteristics, and Dietary Information: Case Study. JMIR Diabetes 2023; 8:e49113. [PMID: 37999944 DOI: 10.2196/49113] [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: 05/18/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Over the past few decades, diabetes has become a serious public health concern worldwide, particularly in Bangladesh. The advancement of artificial intelligence can be reaped in the prediction of blood glucose levels for better health management. However, the practical validity of machine learning (ML) techniques for predicting health parameters using data from low- and middle-income countries, such as Bangladesh, is very low. Specifically, Bangladesh lacks research using ML techniques to predict blood glucose levels based on basic noninvasive clinical measurements and dietary and sociodemographic information. OBJECTIVE To formulate strategies for public health planning and the control of diabetes, this study aimed to develop a personalized ML model that predicts the blood glucose level of urban corporate workers in Bangladesh. METHODS Based on the basic noninvasive health checkup test results, dietary information, and sociodemographic characteristics of 271 employees of the Bangladeshi Grameen Bank complex, 5 well-known ML models, namely, linear regression, boosted decision tree regression, neural network, decision forest regression, and Bayesian linear regression, were used to predict blood glucose levels. Continuous blood glucose data were used in this study to train the model, which then used the trained data to predict new blood glucose values. RESULTS Boosted decision tree regression demonstrated the greatest predictive performance of all evaluated models (root mean squared error=2.30). This means that, on average, our model's predicted blood glucose level deviated from the actual blood glucose level by around 2.30 mg/dL. The mean blood glucose value of the population studied was 128.02 mg/dL (SD 56.92), indicating a borderline result for the majority of the samples (normal value: 140 mg/dL). This suggests that the individuals should be monitoring their blood glucose levels regularly. CONCLUSIONS This ML-enabled web application for blood glucose prediction helps individuals to self-monitor their health condition. The application was developed with communities in remote areas of low- and middle-income countries, such as Bangladesh, in mind. These areas typically lack health facilities and have an insufficient number of qualified doctors and nurses. The web-based application is a simple, practical, and effective solution that can be adopted by the community. Use of the web application can save money on medical expenses, time, and health management expenses. The created system also aids in achieving the Sustainable Development Goals, particularly in ensuring that everyone in the community enjoys good health and well-being and lowering total morbidity and mortality.
Collapse
Affiliation(s)
- Masuda Begum Sampa
- Center for Engineering Computational Intelligence, Faculty of Engineering and Technology, Multimedia University, Melaka, Malaysia
- Department of Computer Science and Engineering, Faculty of Science, Engineering and Technology, University of Science and Technology Chittagong, Chattogram, Bangladesh
| | - Topu Biswas
- Department of Computer Science and Engineering, Faculty of Science, Engineering and Technology, University of Science and Technology Chittagong, Chattogram, Bangladesh
| | - Md Siddikur Rahman
- Department of Statistics, Faculty of Science, Begum Rokeya University, Rangpur, Bangladesh
| | - Nor Hidayati Binti Abdul Aziz
- Center for Engineering Computational Intelligence, Faculty of Engineering and Technology, Multimedia University, Melaka, Malaysia
| | - Md Nazmul Hossain
- Department of Marketing, Faculty of Business Studies, University of Dhaka, Dhaka, Bangladesh
| | - Nor Azlina Ab Aziz
- Center for Engineering Computational Intelligence, Faculty of Engineering and Technology, Multimedia University, Melaka, Malaysia
| |
Collapse
|
29
|
Honkavaara J, Grobelna A, Restitutti F, Kallio-Kujala I, Raekallio M, Spillmann T. Validity and Repeatability Characteristics of a Non-Invasive, Infrared-Based Method Estimating Plasma Indocyanine Green Decay in Healthy Dogs. Animals (Basel) 2023; 13:3455. [PMID: 38003073 PMCID: PMC10668645 DOI: 10.3390/ani13223455] [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: 09/26/2023] [Revised: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Plasma clearance of indocyanine green (ICG-CL) is an invasive method to evaluate liver dysfunction. We aimed to investigate the practicality of a noninvasive, transcutaneous, infrared-based method estimating the disappearance rate of indocyanine green (ICG-PDR). In a randomized, cross-over study, both ICG-CL and ICG-PDR were determined in eight healthy dogs while conscious and when sedated with medetomidine and medetomidine-vatinoxan. ICG-PDR was further repeated in six of the dogs to assess its repeatability. Differences were tested with repeated-measures analysis of variance and post hoc t-tests with Bonferroni corrections, while associations were evaluated by both Spearman and Pearson correlation analyses. Furthermore, repeatability was assessed by examining calculated coefficients of variation (CV). A significant decrease in ICG-CL was observed in dogs sedated with medetomidine, while no difference between conscious and sedated states was detected with ICG-PDR. Overall, correlations between ICG-CL and ICG-PDR were poor, as was the intrasubject repeatability of ICG-PDR in conscious dogs with CV consistently above 20%. While some of the results may be explained by poor signal quality for the non-invasive method, we conclude that in healthy dogs ICG-PDR performed poorly.
Collapse
Affiliation(s)
- Juhana Honkavaara
- Faculty of Veterinary Medicine, University of Helsinki, FIN-00014 Helsinki, Finland (F.R.); (I.K.-K.); (M.R.); (T.S.)
| | | | | | | | | | | |
Collapse
|
30
|
Vignoli F, Mármol GV. Cryolipolysis for fat reduction using Cooltech® Define technology: A large-sample retrospective clinical study. J Cosmet Dermatol 2023; 22 Suppl 3:15-24. [PMID: 37654091 DOI: 10.1111/jocd.15981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Cryolipolysis is a noninvasive technique for localized fat reduction, which induces selective apoptosis of the adipocytes using controlled exposure to intense cold. During the past 10 years, this technique has been shown to be safe and effective and its application has significantly increased. In this context, Cooltech® devices have been widely used around the world. AIMS The purpose of this retrospective study was to evaluate the efficacy and safety of the removal of localized fatty tissue in different body areas using the new Cooltech® Define controlled cooling system. METHODS This single-center study was carried out on 287 patients, both female and male, treated with Cooltech® Define on different body areas for a total of 1118 procedures. Follow-up evaluations were conducted to estimate efficacy and safety. Efficacy was evaluated through plicometry and photographs. Side effects were also reported. RESULTS Fold thickness showed a significant reduction (-69.91 ± 12.55%) after cryolipolysis treatment (fold thickness before: 35.33 ± 8.41 mm; fold thickness after: 10.69 ± 5.27 mm). Few side effects were reported, they included posttreatment pain (1.70%) and one case of paradoxical adipose hyperplasia (0.09%). CONCLUSION The Cooltech® Define cryolipolysis device is a safe, effective, and well-tolerated nonsurgical procedure for reducing localized fat.
Collapse
|
31
|
Abstract
For diabetics, taking regular blood glucose measurements is crucial. However, traditional blood glucose monitoring methods are invasive and unfriendly to diabetics. Recent studies have proposed a biofluid-based glucose sensing technique that creatively combines wearable devices with noninvasive glucose monitoring technology to enhance diabetes management. This is a revolutionary advance in the diagnosis and management of diabetes, reflects the thoughtful modernization of medicine, and promotes the development of digital medicine. This paper reviews the research progress of noninvasive continuous blood glucose monitoring (CGM), with a focus on the biological liquids that replace blood in monitoring systems, the technical principles of continuous noninvasive glucose detection, and the output and calibration of sensor signals. In addition, the existing limits of noninvasive CGM systems and prospects for the future are discussed. This work serves as a resource for further promoting the development of noninvasive CGM systems.
Collapse
Affiliation(s)
- Yilin Li
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Yueyue Chen
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| |
Collapse
|
32
|
Contreras I, Navarro-Otano J, Rodríguez-Pintó I, Güemes A, Alves E, Rios-Garcés R, Espinosa G, Alejaldre A, Beneyto A, Ramkissoon CM, Vehi J, Cervera R. Optimizing Noninvasive Vagus Nerve Stimulation for Systemic Lupus Erythematosus: Protocol for a Multicenter Randomized Controlled Trial. JMIR Res Protoc 2023; 12:e48387. [PMID: 37831494 PMCID: PMC10612000 DOI: 10.2196/48387] [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: 04/21/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Systemic lupus erythematosus is a chronic, multisystem, inflammatory disease of autoimmune etiology occurring predominantly in women. A major hurdle to the diagnosis, treatment, and therapeutic advancement of this disease is its heterogeneous nature, which presents as a wide range of symptoms such as fatigue, fever, musculoskeletal involvement, neuropsychiatric disorders, and cardiovascular involvement with varying severity. The current therapeutic approach to this disease includes the administration of immunomodulatory drugs that may produce unfavorable secondary effects. OBJECTIVE This study explores the known relationship between the autonomic nervous system and inflammatory pathways to improve patient outcomes by treating autonomic nervous system dysregulation in patients via noninvasive vagus nerve stimulation. In this study, data including biomarkers, physiological signals, patient outcomes, and patient quality of life are being collected and analyzed. After completion of the clinical trial, a computer model will be developed to identify the biomarkers and physiological signals related to lupus activity in order to understand how they change with different noninvasive vagus nerve stimulation frequency parameters. Finally, we propose building a decision support system with integrated noninvasive wearable technologies for continuous cardiovascular and peripheral physiological sensing for adaptive, patient-specific optimization of the noninvasive vagus nerve stimulation frequency parameters in real time. METHODS The protocol was designed to evaluate the efficacy and safety of transauricular vagus nerve stimulation in patients with systemic lupus erythematosus. This multicenter, national, randomized, double-blind, parallel-group, placebo-controlled study will recruit a minimum of 18 patients diagnosed with this disease. Evaluation and treatment of patients will be conducted in an outpatient clinic and will include 12 visits. Visit 1 consists of a screening session. Subsequent visits up to visit 6 involve mixing treatment and evaluation sessions. Finally, the remaining visits correspond with early and late posttreatment follow-ups. RESULTS On November 2022, data collection was initiated. Of the 10 participants scheduled for their initial appointment, 8 met the inclusion criteria, and 6 successfully completed the entire protocol. Patient enrollment and data collection are currently underway and are expected to be completed in December 2023. CONCLUSIONS The results of this study will advance patient-tailored vagus nerve stimulation therapies, providing an adjunctive treatment solution for systemic lupus erythematosus that will foster adoption of technology and, thus, expand the population with systemic lupus erythematosus who can benefit from improved autonomic dysregulation, translating into reduced costs and better quality of life. TRIAL REGISTRATION ClinicalTrials.gov NCT05704153; https://clinicaltrials.gov/study/NCT05704153. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/48387.
Collapse
Affiliation(s)
- Ivan Contreras
- Modeling, Identification and Control Engineering (MICELab), Institut d'Informatica i Applicacions, Universitat de Girona, Girona, Spain
- Professor Serra Húnter, Universitat de Girona, Girona, Spain
| | | | - Ignasi Rodríguez-Pintó
- Autoimmune Diseases Unit, Internal Medicine Department, Hospital Universitari Mútua de Terrassa, Terrassa, Spain
| | - Amparo Güemes
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, United Kingdom
| | - Eduarda Alves
- Department of Autoimmune Diseases, Hospital Clínic, Barcelona, Spain
| | | | - Gerard Espinosa
- Department of Autoimmune Diseases, Hospital Clínic, Barcelona, Spain
| | | | - Aleix Beneyto
- Modeling, Identification and Control Engineering (MICELab), Institut d'Informatica i Applicacions, Universitat de Girona, Girona, Spain
| | - Charrise Mary Ramkissoon
- Modeling, Identification and Control Engineering (MICELab), Institut d'Informatica i Applicacions, Universitat de Girona, Girona, Spain
| | - Josep Vehi
- Modeling, Identification and Control Engineering (MICELab), Institut d'Informatica i Applicacions, Universitat de Girona, Girona, Spain
| | - Ricard Cervera
- Department of Autoimmune Diseases, Hospital Clínic, Barcelona, Spain
| |
Collapse
|
33
|
Li L, Zhang F, Zhang J, Shi X, Wu H, Chao X, Ma S, Lang J, Wu M, Zhang D, Liang Z. Identifying Serum Small Extracellular Vesicle MicroRNA as a Noninvasive Diagnostic and Prognostic Biomarker for Ovarian Cancer. ACS Nano 2023; 17:19197-19210. [PMID: 37750402 DOI: 10.1021/acsnano.3c05694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
There remains a lack of effective and noninvasive methods for the diagnosis and prognosis prediction of epithelial ovarian carcinoma (EOC). Here, we investigated the possibility of serum-derived small extracellular vesicle (sEV) microRNAs (miRNAs) as potential biomarkers for distinguishing between benign and malignant adnexal masses and predicting the prognosis of EOC patients. A serum sEV miRNA model for identifying the EOC (sEVmiR-EOC) was successfully established in the training cohort. Furthermore, the sEVmiR-EOC model was confirmed in the testing cohort and validation cohort, demonstrating robust diagnostic accuracy. The sEVmiR-EOC model showed better performance than carbohydrate antigen 125 (CA125) in discriminating patients with stage I EOC from benign patients. Using EOC samples and follow-up data, we identified miR-141-3p and miR-200c-3p as potential prognostic predictors. Finally, we confirmed the change of the sEVmiR-EOC RiskScore between the preoperative and postoperative samples and found that the sEVmiR-EOC model could predict the prognosis of EOC patients.
Collapse
Affiliation(s)
- Lei Li
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Beijing 100730, China
| | - Fuchuang Zhang
- Department of Translational Medicine, 3D Medicines Inc., Shanghai 201114, China
| | - Jiyang Zhang
- Department of Translational Medicine, 3D Medicines Inc., Shanghai 201114, China
| | - Xiaohua Shi
- Department of Pathology, Molecular Pathology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Huanwen Wu
- Department of Pathology, Molecular Pathology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Xiaopei Chao
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Beijing 100730, China
| | - Shuiqing Ma
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Beijing 100730, China
| | - Jinghe Lang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Beijing 100730, China
| | - Ming Wu
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Beijing 100730, China
| | - Dadong Zhang
- Department of Translational Medicine, 3D Medicines Inc., Shanghai 201114, China
| | - Zhiyong Liang
- Department of Pathology, Molecular Pathology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| |
Collapse
|
34
|
Islam MZ, Giannoukos S, Räisänen SE, Wang K, Ma X, Wahl F, Zenobi R, Niu M. Exhaled volatile fatty acids, ruminal methane emission, and their diurnal patterns in lactating dairy cows. J Dairy Sci 2023; 106:6849-6859. [PMID: 37210352 DOI: 10.3168/jds.2023-23301] [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: 01/25/2023] [Accepted: 04/08/2023] [Indexed: 05/22/2023]
Abstract
To date, the commonly used methods to assess rumen fermentation are invasive. Exhaled breath contains hundreds of volatile organic compounds (VOC) that can reflect animal physiological processes. In the present study, for the first time, we aimed to use a noninvasive metabolomics approach based on high-resolution mass spectrometry to identify rumen fermentation parameters in dairy cows. Enteric methane (CH4) production from 7 lactating cows was measured 8 times over 3 consecutive days using the GreenFeed system (C-Lock Technology Inc.). Simultaneously, exhalome samples were collected in Tedlar gas sampling bags and analyzed offline using a secondary electrospray ionization high-resolution mass spectrometry system. In total, 1,298 features were detected, among them targeted exhaled volatile fatty acids (eVFA; i.e., acetate, propionate, butyrate), which were putatively annotated using their exact mass-to-charge ratio. The intensity of eVFA, in particular acetate, increased immediately after feeding and followed a similar pattern to that observed for ruminal CH4 production. The average total eVFA concentration was 35.5 count per second (CPS), and among the individual eVFA, acetate had the greatest concentration, averaging 21.3 CPS, followed by propionate at 11.5 CPS, and butyrate at 2.67 CPS. Further, exhaled acetate was on average the most abundant of the individual eVFA at around 59.3%, followed by 32.5 and 7.9% of the total eVFA for propionate and butyrate, respectively. This corresponds well with the previously reported proportions of these VFA in the rumen. The diurnal patterns of ruminal CH4 emission and individual eVFA were characterized using a linear mixed model with cosine function fit. The model characterized similar diurnal patterns for eVFA and ruminal CH4 and H2 production. Regarding the diurnal patterns of eVFA, the phase (time of peak) of butyrate occurred first, followed by that of acetate and propionate. Importantly, the phase of total eVFA occurred around 1 h before that of ruminal CH4. This corresponds well with existing data on the relationship between rumen VFA production and CH4 formation. Results from the present study revealed a great potential to assess the rumen fermentation of dairy cows using exhaled metabolites as a noninvasive proxy for rumen VFA. Further validation, with comparisons to rumen fluid, and establishment of the proposed method are required.
Collapse
Affiliation(s)
- M Z Islam
- ETH Zürich, Department of Environmental Systems Science, Institute of Agricultural Sciences, 8092 Zürich, Switzerland
| | - S Giannoukos
- ETH Zürich, Department of Chemistry and Applied Biosciences, Analytical Chemistry, 8093 Zürich, Switzerland.
| | - S E Räisänen
- ETH Zürich, Department of Environmental Systems Science, Institute of Agricultural Sciences, 8092 Zürich, Switzerland
| | - K Wang
- ETH Zürich, Department of Environmental Systems Science, Institute of Agricultural Sciences, 8092 Zürich, Switzerland
| | - X Ma
- ETH Zürich, Department of Environmental Systems Science, Institute of Agricultural Sciences, 8092 Zürich, Switzerland
| | - F Wahl
- Food Microbial Systems Research Division, Agroscope, 3003 Bern, Switzerland
| | - R Zenobi
- ETH Zürich, Department of Chemistry and Applied Biosciences, Analytical Chemistry, 8093 Zürich, Switzerland
| | - M Niu
- ETH Zürich, Department of Environmental Systems Science, Institute of Agricultural Sciences, 8092 Zürich, Switzerland.
| |
Collapse
|
35
|
Yu L, He W, Qin W, Wang K, Guo W, Wang S. Noninvasive computed tomography derived fractional flow reserve simulation based on microvascular tree model reconstruction. Int J Numer Method Biomed Eng 2023; 39:e3643. [PMID: 36054275 DOI: 10.1002/cnm.3643] [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] [Received: 03/28/2022] [Revised: 07/22/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
To establish a novel method for noninvasive computed tomography derived fractional flow reserve (CT-FFR) simulation based on microvascular tree model reconstruction and to evaluate the feasibility and diagnostic performance of the novel method in coronary artery disease compared with invasive fractional flow reserve (FFR). Twenty patients (20 vessels) who underwent coronary computed tomography angiography (CCTA) and invasive FFR were retrospectively studied. The anatomic epicardial coronary artery model was reconstructed based on CCTA image, and the microvascular tree model was simulated based on patient-specific anatomical structures and physiological principles. Numerical simulation was subsequently performed using the CFD method with full consideration of the variation of viscosity in microvascular. Two patients with the FFR value of .80 were selected for adjusting the parameters of the model, while the remaining 18 patients were selected as a validation cohort. After simulation, CT-FFR was compared with invasive FFR with a threshold of .80. Eleven (55%) patients had an abnormal FFR that was less than or equal to .80. Compared with invasive FFR, sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of CT-FFR with an optimal threshold of .80 were 100%, 77.8%, 81.8%, 100%, 88.89%, respectively. There were a good correlation and consistency between CT-FFR and invasive FFR. Time per patient of CT-FFR analysis was less than 15 min. CT-FFR based on microvascular tree model reconstruction is feasible with good diagnostic performance. It requires a short processing time with excellent accuracy. Large multicenter prospective studies are required for further demonstrating the diagnostic performance of this novel model in myocardium ischemia evaluation.
Collapse
Affiliation(s)
- Long Yu
- Department of aeronautics and astronautics, Fudan University, Shanghai, China
| | - Wei He
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wang Qin
- Department of aeronautics and astronautics, Fudan University, Shanghai, China
| | - Keqiang Wang
- Institute of Panvascular Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Weifeng Guo
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shengzhang Wang
- Department of aeronautics and astronautics, Fudan University, Shanghai, China
- Institute of Biomedical Engineering Technology, Academy for Engineering and Technology, Fudan University, Shanghai, China
| |
Collapse
|
36
|
Chen Y, Tseng SH, Chen CY, Tsai YH. Application of Intestinal Barrier Molecules in the Diagnosis of Acute Cellular Rejection After Intestinal Transplantation. Transpl Int 2023; 36:11595. [PMID: 37745643 PMCID: PMC10514359 DOI: 10.3389/ti.2023.11595] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 08/22/2023] [Indexed: 09/26/2023]
Abstract
Diagnosing acute rejection after intestinal transplantation currently heavily relies on histopathological analysis of graft biopsies. However, the invasive risks associated with ileoscopic examination and the inaccessibility for biopsy after ileostomy closure hinder real-time detection of rejection responses. Molecules comprising the intestinal barrier have been identified as physiological and molecular biomarkers for various bowel conditions and systemic diseases. To investigate the potential of barrier function-related molecules in diagnosing rejection after intestinal transplantation, plasma samples were collected longitudinally from transplant recipients. The samples were categorized into "indeterminate for rejection (IND)" and "acute rejection (AR)" groups based on clinical diagnoses at each time point. The longitudinal association between plasma levels of these barrier function-related molecules and acute rejection was analyzed using the generalized estimating equations (GEE) method. Logistic GEE models revealed that plasma levels of claudin-3, occludin, sIgA, and zonulin were independent variables correlated with the clinical diagnosis of acute rejection. The subsequent prediction model demonstrated moderate ability in discriminating between IND and AR samples, with a sensitivity of 76.0%, specificity of 89.2%, and accuracy of 84.6%. In conclusion, monitoring plasma levels of claudin-3, occludin, sIgA, and zonulin shows great potential in aiding the diagnosis of acute rejection after intestinal transplantation.
Collapse
Affiliation(s)
- Yun Chen
- Department of Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Graduate Institute of Medicine, Yuan Ze University, Taoyuan, Taiwan
| | - Sheng-Hong Tseng
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Yen Chen
- Medicine and Institute of Emergency and Critical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
- Association for the Study of Small Intestinal Diseases, Taoyuan, Taiwan
| | - Ya-Hui Tsai
- Department of Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Graduate Institute of Medicine, Yuan Ze University, Taoyuan, Taiwan
| |
Collapse
|
37
|
Vandergast AG, Brehme CS, Iwanowicz D, Cornman RS, Adsit‐Morris D, Fisher RN. Fecal metabarcoding of the endangered Pacific pocket mouse ( Perognathus longimembris pacificus) reveals a diverse and forb rich diet that reflects local habitat availability. Ecol Evol 2023; 13:e10460. [PMID: 37745784 PMCID: PMC10514273 DOI: 10.1002/ece3.10460] [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: 05/11/2023] [Revised: 08/02/2023] [Accepted: 08/17/2023] [Indexed: 09/26/2023] Open
Abstract
Information on diet breadth and preference can assist in understanding links between food resources and population growth and inform habitat restoration for rare herbivores. We assessed the diet of the endangered Pacific pocket mouse using metabarcoding of fecal samples and compared it to plant community composition in long-term study plots in two populations on Marine Corps Base Camp Pendleton, San Diego County, CA. Fecal samples (n = 221) were collected between spring 2016 and fall 2017 during monthly live-trap surveys. Concurrently, percent cover and plant phenology were measured in plots centered on trap locations. Fecal samples were sequenced with paired-end reads of the internal transcribed spacer 2 region of the nuclear ribosomal gene, and the resulting amplicons were matched to a regionally specific database. Seventy-three plant taxa were detected, which were mostly forbs and perennial herbs (70-90%). Diet composition differed between populations, years, seasons, and plots. Overall, diet and local habitat composition in plots were significantly correlated. However, we detected some differences in above-ground seed availability and proportion in fecal samples that indicate diet preferences for some forbs, perennial herbs, and native bunch grasses over perennial shrubs and non-native grasses. This is the first study of PPM to pair plant phenology surveys with diet metabarcoding to estimate resource selection, and results suggest that managing habitat for diverse native forb communities and reducing non-native grass cover may be beneficial for this critically endangered species.
Collapse
Affiliation(s)
- Amy G. Vandergast
- U.S. Geological SurveyWestern Ecological Research CenterSan DiegoCaliforniaUSA
| | - Cheryl S. Brehme
- U.S. Geological SurveyWestern Ecological Research CenterSan DiegoCaliforniaUSA
| | - Deborah Iwanowicz
- U.S. Geological Survey, Eastern Ecological Science Center, Leetown Research LaboratoryKearneysvilleWest VirginiaUSA
| | - Robert S. Cornman
- U.S. Geological SurveyFort Collins Science CenterFort CollinsColoradoUSA
| | - Devin Adsit‐Morris
- U.S. Geological SurveyWestern Ecological Research CenterSan DiegoCaliforniaUSA
| | - Robert N. Fisher
- U.S. Geological SurveyWestern Ecological Research CenterSan DiegoCaliforniaUSA
| |
Collapse
|
38
|
Heerfordt IM, Philipsen PA, Andersen JD, Langhans L, Schmidt G, Morling N, Wulf HC. RNA analysis of tape strips to rule out melanoma in lesions clinically assessed as cutaneous malignant melanoma: A diagnostic study. J Am Acad Dermatol 2023; 89:537-543. [PMID: 37224970 DOI: 10.1016/j.jaad.2023.05.030] [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: 01/10/2023] [Revised: 04/26/2023] [Accepted: 05/03/2023] [Indexed: 05/26/2023]
Abstract
BACKGROUND Distinguishing cutaneous malignant melanoma (CMM) from nevi can be clinically challenging. Suspicious lesions are therefore excised, resulting in many benign lesions being removed surgically to find 1 CMM. It has been proposed to use tape strip derived ribonucleic acid (RNA) to distinguish CMM from nevi. OBJECTIVE To develop this technique further and validate if RNA profiles can rule out CMM in clinically suspicious lesions with 100% sensitivity. METHODS Before surgical excision, 200 lesions clinically assessed as CMM were tape stripped. Expression levels of 11 genes on the tapes were investigated by RNA measurement and used in a rule-out test. RESULTS Histopathology showed that 73 CMMs and 127 non-CMMs were included. Our test correctly identified all CMMs (100% sensitivity) based on the expression levels of 2 oncogenes, PRAME and KIT, relative to a housekeeping gene. Patient age and sample storage time were also significant. Simultaneously, our test correctly excluded CMM in 32% of non-CMM lesions (32% specificity). LIMITATIONS Our sample contained a very high proportion of CMMs, perhaps due to inclusion during COVID-19 shutdown. Validation in a separate trial must be performed. CONCLUSION Our results demonstrate that the technique can reduce removal of benign lesions by one-third without overlooking any CMMs.
Collapse
Affiliation(s)
- Ida M Heerfordt
- Department of Dermatology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.
| | - Peter A Philipsen
- Department of Dermatology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Jeppe D Andersen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Linnea Langhans
- Department of Plastic Surgery and Burns Treatment, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Grethe Schmidt
- Department of Plastic Surgery and Burns Treatment, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Niels Morling
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Hans Christian Wulf
- Department of Dermatology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| |
Collapse
|
39
|
Michaud V, Sequeira A, Mercier E, Lasseaux E, Plaisant C, Hadj-Rabia S, Whalen S, Bonneau D, Dieux-Coeslier A, Morice-Picard F, Coursimault J, Arveiler B, Javerzat S. Unsuspected consequences of synonymous and missense variants in OCA2 can be detected in blood cell RNA samples of patients with albinism. Pigment Cell Melanoma Res 2023. [PMID: 37650133 DOI: 10.1111/pcmr.13123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023]
Abstract
Oculocutaneous albinism type 2 (OCA2) is the second most frequent form of albinism and represents about 30% of OCA worldwide. As with all types of OCA, patients present with hypopigmentation of hair and skin, as well as severe visual abnormalities. We focused on a subgroup of 29 patients for whom genetic diagnosis was pending because at least one of their identified variants in or around exon 10 of OCA2 is of uncertain significance (VUS). By minigene assay, we investigated the effect of these VUS on exon 10 skipping and showed that not only intronic but also some synonymous variants can result in enhanced exon skipping. We further found that excessive skipping of exon 10 could be detected directly on blood samples of patients and of their one parent with the causal variant, avoiding invasive skin biopsies. Moreover, we show that variants, which result in lack of detectable OCA2 mRNA can be identified from blood samples as well, as shown for the most common OCA2 pathogenic missense variant c.1327G>A/p.(Val443Ile). In conclusion, blood cell RNA analysis allows testing the potential effect of any OCA2 VUS on transcription products. This should help to elucidate yet unsolved OCA2 patients and improve genetic counseling.
Collapse
Affiliation(s)
- Vincent Michaud
- Rare Diseases Genetics and Metabolism, INSERM U1211, SBM Department, University of Bordeaux, Bordeaux, France
- Department of Medical Genetics, University Hospital of Bordeaux, Bordeaux, France
| | - Angèle Sequeira
- Rare Diseases Genetics and Metabolism, INSERM U1211, SBM Department, University of Bordeaux, Bordeaux, France
| | - Elina Mercier
- Rare Diseases Genetics and Metabolism, INSERM U1211, SBM Department, University of Bordeaux, Bordeaux, France
| | - Eulalie Lasseaux
- Department of Medical Genetics, University Hospital of Bordeaux, Bordeaux, France
| | - Claudio Plaisant
- Department of Medical Genetics, University Hospital of Bordeaux, Bordeaux, France
| | - Smail Hadj-Rabia
- Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), INSERM U1163, University of Paris, Imagine Institute, AP-HP5, Necker-Enfants Malades Hospital, Paris, France
| | - Sandra Whalen
- Clinical Genetics, Centre de Référence Maladies Rares Anomalies du développement et syndromes malformatifs, APHP, Sorbonne University, Hospital Armand Trousseau, Paris, France
| | | | - Anne Dieux-Coeslier
- Clinical Genetics Department, Reference Center for Developmental Anomalies, CHU Lille, Lille, France
| | - Fanny Morice-Picard
- Pediatric Dermatology Unit, National Center for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France
| | - Juliette Coursimault
- Department of Genetics and Reference Center for Developmental Disorders, Normandie Univ, UNIROUEN, CHU Rouen, Inserm U1245, Rouen, France
| | - Benoît Arveiler
- Rare Diseases Genetics and Metabolism, INSERM U1211, SBM Department, University of Bordeaux, Bordeaux, France
- Department of Medical Genetics, University Hospital of Bordeaux, Bordeaux, France
| | - Sophie Javerzat
- Rare Diseases Genetics and Metabolism, INSERM U1211, SBM Department, University of Bordeaux, Bordeaux, France
| |
Collapse
|
40
|
Longman K, Frampas C, Lewis H, Costa C, Nilforooshan R, Chambers M, Bailey M. Noninvasive drug adherence monitoring of antipsychotic patients via finger sweat testing. Front Chem 2023; 11:1245089. [PMID: 37720721 PMCID: PMC10500062 DOI: 10.3389/fchem.2023.1245089] [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: 06/23/2023] [Accepted: 08/02/2023] [Indexed: 09/19/2023] Open
Abstract
Collection of finger sweat is explored here as a rapid and convenient way of monitoring patient adherence to antipsychotic drugs. Finger sweat samples (n = 426) collected from patients receiving treatment with clozapine, quetiapine and olanzapine were analysed by liquid chromatography mass spectrometry, including a subgroup of patients with paired plasma samples. Finger sweat samples were also analysed from a negative control group and patients who had handled antipsychotic medication only. The finger sweat test (based on the detection of parent drug in one donated sample) was 100% effective in monitoring adherence within commonly prescribed dosing ranges. In comparison to participants who handled the medication only, the test could distinguish between contact and administration through monitoring of the drug metabolite, or the level of parent drug. Additionally, in a subgroup of patients prescribed clozapine, a statistically significant correlation was observed between the mass of parent drug in finger sweat and plasma concentration. The finger sweat technology shows promise as a dignified, noninvasive method to monitor treatment adherence in patients taking antipsychotics.
Collapse
Affiliation(s)
- K. Longman
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, United Kingdom
| | - C. Frampas
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, United Kingdom
| | - H. Lewis
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, United Kingdom
| | - C. Costa
- Surrey Ion Beam Centre, University of Surrey, Guildford, United Kingdom
| | - R. Nilforooshan
- Abraham Cowley Unit, St Peter’s Hospital, Surrey and Borders Partnership NHS Foundation Trust, Chertsey, United Kingdom
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - M. Chambers
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - M. Bailey
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, United Kingdom
| |
Collapse
|
41
|
Crepaldi A, Caruso L, Piva G, Traina L, Gasbarro V, Manfredini R, Lamberti N, Rinaldo N, Manfredini F, Lopez-Soto PJ. Foot Temperature by Infrared Thermography in Patients with Peripheral Artery Disease before and after Structured Home-Based Exercise: A Gender-Based Observational Study. J Pers Med 2023; 13:1312. [PMID: 37763080 PMCID: PMC10532675 DOI: 10.3390/jpm13091312] [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: 08/06/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Decreased arterial perfusion is a typical condition of patients with peripheral artery disease (PAD), with the microvascular picture particularly present among women. This observational study aimed to detect foot perfusion changes by infrared thermography (IRT) after a home-based exercise program in both sexes. A total of 76 PAD patients with claudication (72 ± 4 years; 52 males) were enrolled in a structured in-home exercise program composed of two daily 8 min interval walking sessions (1:1 walk:rest ratio) with progressively increasing speed. Outcome measures collected at baseline (T0) and at each hospital visit after 5 weeks, 12 weeks and 20 weeks included foot temperature measured by IRT (anterior tibial, posterior tibial, dorsalis pedis and arcuate artery regions), ankle brachial index and the 6 min walking test. After 20 weeks, foot temperature in both limbs showed a significant increasing trend, with a mean variation of 1.3 °C for the more impaired limb and 0.9 °C for the contralateral limb (t = 8.88, p < 0.001 and t = 5.36; p < 0.001, respectively), with significant changes occurring after 5 weeks of training. The sex-oriented analysis did not highlight any significant difference, with an improvement of mean foot temperature of 1.5 ± 0.6 °C in females versus 1.2 ± 0.5 °C in males (p = 0.42). Ankle brachial index and performance also significantly improved over time (p < 0.001) without gender differences. In patients with PAD, a structured low-intensity exercise program significantly improved foot temperature and exercise capacity without any sex-related difference.
Collapse
Affiliation(s)
- Anna Crepaldi
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba, 14004 Cordoba, Spain; (A.C.); (P.J.L.-S.)
- Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, 14004 Cordoba, Spain
- Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, 14004 Cordoba, Spain
| | - Lorenzo Caruso
- Department of Environmental and Prevention Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Giovanni Piva
- Department of Humanities, University of Ferrara, 44121 Ferrara, Italy;
| | - Luca Traina
- Unit of Vascular and Endovascular Surgery, University Hospital of Ferrara, 44124 Ferrara, Italy; (L.T.); (V.G.)
| | - Vincenzo Gasbarro
- Unit of Vascular and Endovascular Surgery, University Hospital of Ferrara, 44124 Ferrara, Italy; (L.T.); (V.G.)
- Department of Medical Sciences, University of Ferrara, 44124 Ferrara, Italy;
| | - Roberto Manfredini
- Department of Medical Sciences, University of Ferrara, 44124 Ferrara, Italy;
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
| | - Nicola Lamberti
- Department of Neuroscience and Rehabilitation, University of Ferrara, 44121 Ferrara, Italy; (N.L.); (N.R.)
| | - Natascia Rinaldo
- Department of Neuroscience and Rehabilitation, University of Ferrara, 44121 Ferrara, Italy; (N.L.); (N.R.)
| | - Fabio Manfredini
- Department of Neuroscience and Rehabilitation, University of Ferrara, 44121 Ferrara, Italy; (N.L.); (N.R.)
- Program of Vascular Rehabilitation and Exercise Medicine, University Hospital of Ferrara, 44124 Ferrara, Italy
| | - Pablo Jesus Lopez-Soto
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba, 14004 Cordoba, Spain; (A.C.); (P.J.L.-S.)
- Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, 14004 Cordoba, Spain
- Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, 14004 Cordoba, Spain
| |
Collapse
|
42
|
Stoilov B, Truong VK, Gronthos S, Vasilev K. Noninvasive and Microinvasive Nanoscale Drug Delivery Platforms for Hard Tissue Engineering. ACS Appl Bio Mater 2023; 6:2925-2943. [PMID: 37565698 DOI: 10.1021/acsabm.3c00095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Bone tissue plays a crucial role in protecting internal organs and providing structural support and locomotion of the body. Treatment of hard tissue defects and medical conditions due to physical injuries, genetic disorders, aging, metabolic syndromes, and infections is more often a complex and drawn out process. Presently, dealing with hard-tissue-based clinical problems is still mostly conducted via surgical interventions. However, advances in nanotechnology over the last decades have led to shifting trends in clinical practice toward noninvasive and microinvasive methods. In this review article, recent advances in the development of nanoscale platforms for bone tissue engineering have been reviewed and critically discussed to provide a comprehensive understanding of the advantages and disadvantages of noninvasive and microinvasive methods for treating medical conditions related to hard tissue regeneration and repair.
Collapse
Affiliation(s)
- Borislav Stoilov
- Biomedical Nanoengineering Laboratory, College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, South Australia 5042, Australia
| | - Vi Khanh Truong
- Biomedical Nanoengineering Laboratory, College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, South Australia 5042, Australia
| | - Stan Gronthos
- School of Biomedicine, Faculty of Health and Medical Sciences, University of Adelaide/SAHMRI, North Terrace, Adelaide, South Australia 5001, Australia
| | - Krasimir Vasilev
- Biomedical Nanoengineering Laboratory, College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, South Australia 5042, Australia
| |
Collapse
|
43
|
Jiang FL, Tang S, Eom SH, Lee JY, Chae JH, Kim CH. Distribution of Bioelectrical Impedance Vector Analysis and Phase Angle in Korean Elderly and Sarcopenia. Sensors (Basel) 2023; 23:7090. [PMID: 37631626 PMCID: PMC10458265 DOI: 10.3390/s23167090] [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: 06/22/2023] [Revised: 08/02/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023]
Abstract
PURPOSE This study aimed to verify whether bioelectrical impedance vector analysis (BIVA) can support the clinical evaluation of sarcopenia in elderly individuals and evaluate the relationships between phase angle (PhA), physical performance, and muscle mass. METHODS The sample comprised 134 free-living elderly individuals of both sexes aged 69-91 years. Anthropometric parameters, grip strength, dual-energy X-ray absorptiometry findings, bioimpedance analysis results, and physical performance were also measured. The impedance vector distributions were evaluated in elderly individuals using BIVA. RESULTS BIVA revealed significant differences between the sarcopenia and non-sarcopenia groups (both sexes). The sarcopenia group had a significantly lower PhA than the non-sarcopenia group in both sexes (p < 0.05). PhA was significantly correlated with age, appendicular skeletal muscle (ASM), handgrip strength (HGS), and muscle quality in both sexes and significantly correlated with ASM/Height2 and physical performance in males. CONCLUSION BIVA can be used as a field assessment method in elderly Koreans with sarcopenia. PhA is a good indicator of muscle strength, muscle quality, and physical performance in males. These methods can help diagnose sarcopenia in elderly individuals with reduced mobility.
Collapse
Affiliation(s)
- Fang-Lin Jiang
- Department of Wushu and Traditional National Sports, College of Physical Education, Hunan Normal University, Changsha 410012, China;
| | - Saizhao Tang
- Department of Sports Medicine, Soonchunhyang University, Asan 31538, Republic of Korea; (S.T.); (S.-H.E.); (J.-Y.L.); (J.H.C.)
| | - Seon-Ho Eom
- Department of Sports Medicine, Soonchunhyang University, Asan 31538, Republic of Korea; (S.T.); (S.-H.E.); (J.-Y.L.); (J.H.C.)
| | - Jae-Young Lee
- Department of Sports Medicine, Soonchunhyang University, Asan 31538, Republic of Korea; (S.T.); (S.-H.E.); (J.-Y.L.); (J.H.C.)
| | - Ji Heon Chae
- Department of Sports Medicine, Soonchunhyang University, Asan 31538, Republic of Korea; (S.T.); (S.-H.E.); (J.-Y.L.); (J.H.C.)
| | - Chul-Hyun Kim
- Department of Sports Medicine, Soonchunhyang University, Asan 31538, Republic of Korea; (S.T.); (S.-H.E.); (J.-Y.L.); (J.H.C.)
| |
Collapse
|
44
|
Pal D, Kumar A, Avraham N, Eisenbach Y, Beiderman Y, Agdarov S, Beiderman Y, Zalevsky Z. Noninvasive blood glucose sensing by secondary speckle pattern artificial intelligence analyses. J Biomed Opt 2023; 28:087001. [PMID: 37533956 PMCID: PMC10393050 DOI: 10.1117/1.jbo.28.8.087001] [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: 02/27/2023] [Revised: 05/22/2023] [Accepted: 07/05/2023] [Indexed: 08/04/2023]
Abstract
Significance Diabetes is a prevalent disease worldwide that can cause severe health problems. Accurate blood glucose detection is crucial for diabetes management, and noninvasive methods can be more convenient and less painful than traditional finger-prick methods. Aim We aim to report a noncontact speckle-based blood glucose measurement system that utilizes artificial intelligence (AI) data processing to improve glucose detection accuracy. The study also explores the influence of an alternating current (AC) induced magnetic field on the sensitivity and selectivity of blood glucose detection. Approach The proposed blood glucose sensor consists of a digital camera, an AC-generated magnetic field source, a laser illuminating the subject's finger, and a computer. A magnetic field is applied to the finger, and a camera records the speckle patterns generated by the laser light reflected from the finger. The acquired video data are preprocessed for machine learning (ML) and deep neural networks (DNNs) to classify blood plasma glucose levels. The standard finger-prick method is used as a reference for blood glucose level classification. Results The study found that the noncontact speckle-based blood glucose measurement system with AI data processing allows for the detection of blood plasma glucose levels with high accuracy. The ML approach gives better results than the tested DNNs as the proposed data preprocessing is highly selective and efficient. Conclusions The proposed noncontact blood glucose sensing mechanism utilizing AI data processing and a magnetic field can potentially improve glucose detection accuracy, making it more convenient and less painful for patients. The system also allows for inexpensive blood glucose sensing mechanisms and fast blood glucose screening. The results suggest that noninvasive methods can improve blood glucose detection accuracy, which can have significant implications for diabetes management. Investigations involving representative sampling data, including subjects of different ages, gender, race, and health status, could allow for further improvement.
Collapse
Affiliation(s)
- Deep Pal
- Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel
- Indian Institute of Technology (Indian School of Mines) Dhanbad, Department of Electronics Engineering, Dhanbad, Jharkhand, India
| | - Amitesh Kumar
- Indian Institute of Technology (Indian School of Mines) Dhanbad, Department of Electronics Engineering, Dhanbad, Jharkhand, India
| | - Nave Avraham
- Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel
| | - Yoram Eisenbach
- Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel
| | - Yevgeny Beiderman
- Holon Institute of Technology, Faculty of Electrical Engineering, Holon, Israel
| | - Sergey Agdarov
- Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel
| | - Yafim Beiderman
- Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel
| | - Zeev Zalevsky
- Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel
| |
Collapse
|
45
|
Higham JP, Cooper EB, Whalen C, Stahl-Hennig C, Giavedoni LD, Heistermann M. Urinary cytokine measurements do not reflect surgery-induced inflammation in rhesus macaques. Am J Primatol 2023; 85:e23506. [PMID: 37222418 DOI: 10.1002/ajp.23506] [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: 09/04/2022] [Revised: 03/14/2023] [Accepted: 04/29/2023] [Indexed: 05/25/2023]
Abstract
Measurement of the health and disease status of free-ranging primates is often limited by a lack of available biomarkers of immune activation and inflammation that can be applied noninvasively via the measurement of urine or fecal samples. Here, we evaluate the potential usefulness of noninvasive urinary measurements of a number of cytokines, chemokines, and other markers of inflammation and infection. We took advantage of surgery-associated inflammation in seven captive rhesus macaques, collecting urine samples before and after the medical interventions. We measured these urine samples for 33 different markers of inflammation and immune activation that are known to be responsive to inflammation and infection in rhesus macaque blood samples, via the Luminex platform. We also measured all samples for concentrations of the soluble urokinase plasminogen activator receptor (suPAR), which we had validated in a prior study as an effective biomarker of inflammation. Despite urine samples being collected in captivity under ideal conditions (clean, no contamination with feces or soil, frozen quickly), 13/33 biomarkers measured via Luminex were found at concentrations below detection limits in >50% of samples. Of the remaining 20 markers, only 2 showed significant increases in response to surgery-IL18 and MPO (myeloperoxidase). However, suPAR measurements of the same samples show a consistent marked increase in response to surgery that is absent from the patterns of IL18 and MPO measurement. Given that our samples were collected under conditions that are greatly preferable to those usually encountered in the field, urinary cytokine measurements via the Luminex platform seem overall unpromising for primate field studies.
Collapse
Affiliation(s)
- James P Higham
- Department of Anthropology, New York University, New York, New York, USA
| | - Eve B Cooper
- Department of Anthropology, New York University, New York, New York, USA
| | - Connor Whalen
- Department of Anthropology, New York University, New York, New York, USA
| | | | - Luis D Giavedoni
- Southwest National Primate Research Center, Texas Biomedical Research Institute, Texas, San Antonio, USA
- Department of Biology, Trinity University, San Antonio, Texas, USA
| | | |
Collapse
|
46
|
Noorani S, Kim DB. Tape-splint tarsorrhaphy technique to manage exposure keratopathy in a patient refusing surgical intervention. Clin Case Rep 2023; 11:e7797. [PMID: 37575457 PMCID: PMC10421974 DOI: 10.1002/ccr3.7797] [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: 03/21/2023] [Revised: 06/15/2023] [Accepted: 07/25/2023] [Indexed: 08/15/2023] Open
Abstract
This case report describes the benefits of a unique tape-splinting technique to serve as a nonsurgical tarsorrhaphy in the management of exposure keratopathy in a patient who refuses surgical intervention.
Collapse
Affiliation(s)
- Soha Noorani
- Philadelphia College of Osteopathic MedicineSuwaneeGeorgiaUSA
| | | |
Collapse
|
47
|
Paranjape VV, Garcia-Pereira FL, Menciotti G, Saksena S, Henao-Guerrero N, Ricco-Pereira CH. Evaluation of Electrical Cardiometry for Measuring Cardiac Output and Derived Hemodynamic Variables in Comparison with Lithium Dilution in Anesthetized Dogs. Animals (Basel) 2023; 13:2362. [PMID: 37508139 PMCID: PMC10376001 DOI: 10.3390/ani13142362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Numerous cardiac output (CO) technologies were developed to replace the 'gold standard' pulmonary artery thermodilution due to its invasiveness and the risks associated with it. Minimally invasive lithium dilution (LiD) shows excellent agreement with thermodilution and can be used as a reference standard in animals. This study evaluated CO via noninvasive electrical cardiometry (EC) and acquired hemodynamic variables against CO measured using LiD in six healthy, anesthetized dogs administered different treatments (dobutamine, esmolol, phenylephrine, and high-dose isoflurane) impacting CO values. These treatments were chosen to cause drastic variations in CO, so that fair comparisons between EC and LiD across a wide range of CO values (low, intermediate, and high) could be made. Statistical analysis included linear regression, Bland-Altman plots, Lin's concordance correlation coefficient (ρc), and polar plots. Values of p < 0.05 represented significance. Good agreement was observed between EC and LiD, but consistent underestimation was noted when the CO values were high. The good trending ability, ρc of 0.88, and low percentage error of ±31% signified EC's favorable performance. Other EC-acquired variables successfully tracked changes in CO measured using LiD. EC may be a pivotal hemodynamic tool for continuously monitoring circulatory changes, as well as guiding and treating cardiovascular anesthetic complications in clinical settings.
Collapse
Affiliation(s)
- Vaidehi V Paranjape
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA
| | | | - Giulio Menciotti
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA
| | - Siddharth Saksena
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Natalia Henao-Guerrero
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA
| | - Carolina H Ricco-Pereira
- Department of Veterinary Clinical Sciences, The Ohio State University-College of Veterinary Medicine, Columbus, OH 43210, USA
| |
Collapse
|
48
|
Bedder M, Parker L. Magnetic Peripheral Nerve Stimulation (mPNS) for Chronic Pain. J Pain Res 2023; 16:2365-2373. [PMID: 37465717 PMCID: PMC10350402 DOI: 10.2147/jpr.s409331] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/04/2023] [Indexed: 07/20/2023] Open
Abstract
Purpose To assess magnetic peripheral nerve stimulation (mPNS) for the treatment of chronic or chronic and intractable neuropathic pain with a retrospective review case series. Patients and methods Twenty-four patients with predominantly neuropathic post-traumatic or postoperative pain were treated as per protocol and followed for 3 months. Results Data were analyzed as an observational, one-armed, convenience sample. Graphical evidence backed up by a mixed model for repeated measures statistical analysis showed a highly significant reduction of pain at one month out from initial treatment with mPNS. At one month, there was a 3.8 average reduction in pre-pain scores using a visual analogue scale (VAS), and that relief was generally durable measured out to three months. Two-thirds of patients, deemed responders, showed an 87% reduction in pain. Opioid reduction was seen in 58.3% of responders as well. Conclusion mPNS appears promising for the treatment of chronic or chronic and intractable neuropathic pain for many of the same indications as traditional electrical peripheral nerve stimulation (PNS). No invasive techniques or implants are needed for mPNS.
Collapse
Affiliation(s)
- Marshall Bedder
- Department of Surgery, Pain Medicine Service, Charlie Norwood Veterans Administration Medical Center, Augusta, GA, USA
- Department of Psychiatry and Health Behavior, Addiction Medicine Service, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - Lisa Parker
- Department of Surgery, Pain Medicine Service, Charlie Norwood Veterans Administration Medical Center, Augusta, GA, USA
| |
Collapse
|
49
|
Zhang Z, Wang J, Wang H, Li Y, Zhu L, Chen Y, Liu J, Liu Y, Chen Y, Yin S, Tong X, Yan X, Yang Y, Zhu C, Li J, Qiu Y, Huang R, Wu C. Develop and validate a novel online AIHI-nomogram to predict severe liver inflammation in patients with autoimmune hepatitis. Ann Hepatol 2023:101134. [PMID: 37442347 DOI: 10.1016/j.aohep.2023.101134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/11/2023] [Accepted: 06/01/2023] [Indexed: 07/15/2023]
Abstract
INTRODUCTION AND OBJECTIVES Assessment of liver inflammation plays a vital role in the management of patients with autoimmune hepatitis (AIH). We aimed to establish and validate a nomogram to predict severe liver inflammation in AIH patients. PATIENTS AND METHODS AIH patients who underwent liver biopsy were included and randomly divided into a training set and a validation set. Independent predictors of severe liver inflammation were selected by the least absolute shrinkage and selection operator regression from the training set and used to conduct a nomogram. Receiver characteristic curves (ROC), calibration curves, and decision curve analysis (DCA) were adopted to evaluate the performance of nomogram. RESULTS Of the 213 patients, female patients accounted for 83.1% and the median age was 53.0 years. The albumin, gamma-glutamyl transpeptidase, total bilirubin, red cell distribution width, prothrombin time, and platelets were independent predictors of severe inflammation. An online AIHI-nomogram was established and was available at https://ndth-zzy.shinyapps.io/AIHI-nomogram/. The calibration curve revealed that the AIHI-nomogram had a good agreement with actual observation in the training and validation sets. The area under the ROCs of AIHI-nomogram were 0.795 in the training set and 0.759 in the validation set, showing significantly better performance than alanine aminotransferase and immunoglobulin G in the training and validation sets, as well in AIH patients with normal ALT in the training set. DCA indicated that the AIHI-nomogram was clinically useful. CONCLUSIONS This novel AIHI-nomogram provided an excellent prediction of severe liver inflammation in AIH patients and could be used for the better management of AIH.
Collapse
Affiliation(s)
- Zhiyi Zhang
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Jian Wang
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China; Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China
| | - Huali Wang
- Department of General Practice, Nanjing Second Hospital, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yiguang Li
- Department of Infectious Diseases, The Fifth People's Hospital of Wuxi, Wuxi, Jiangsu, China
| | - Li Zhu
- Department of Infectious Diseases, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yun Chen
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jiacheng Liu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Yilin Liu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yuxin Chen
- Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China; Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Shengxia Yin
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Xin Tong
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Xiaomin Yan
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Yongfeng Yang
- Department of Hepatology, Nanjing Second Hospital, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Chuanwu Zhu
- Department of Infectious Diseases, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jie Li
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China; Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China; Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuanwang Qiu
- Department of Infectious Diseases, The Fifth People's Hospital of Wuxi, Wuxi, Jiangsu, China.
| | - Rui Huang
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China; Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China; Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Chao Wu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China; Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China; Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China.
| |
Collapse
|
50
|
Gao Z, Lu S, Shan S. Acquired perforating dermatosis: A clinicopathologic study, and the features of dermoscopy and reflective confocal microscopy of 37 cases. Skin Res Technol 2023; 29:e13416. [PMID: 37522501 PMCID: PMC10351033 DOI: 10.1111/srt.13416] [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] [Accepted: 07/10/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Acquired perforating dermatosis (APD) is a rare skin condition characterized by degenerated materials eliminated from the dermis. Several retrospective studies on APD have been reported; however, few data are available on Chinese APD and their features on dermoscopy and reflective confocal microscope (RCM) assays. OBJECTIVE The aim of this study was to retrospectively evaluate the clinical and histopathologic data of 37 acquired perforating dermatosis cases, and assess their features on dermoscopy and RCM. METHODS Thirty-seven APD patients were retrospectively enrolled in our study. We characterized the clinical histopathological features, concomitant diseases, treatment responses, and the dermoscopy and RCM findings. RESULTS Pruritus was the most common symptom, with the lower extremities as the most predilection sites (86.5%, n = 32; 91.9%, n = 34, respectively). Concomitant diseases were found in 34 patients (92.6%), among which diabetes mellitus was the most common, followed by thyroid nodules, allergic dermatosis, and chronic renal insufficiency. Dermoscopy and RCM assays were performed in 11 patients. The typical RCM images were hyperreflective cord-like structures from the epidermis to dermis. Dermoscopy features of fully developed lesions showed central ulceration with peripheral hairpin-like or loop-like capillaries with characteristic garland arrangements. CONCLUSION APD is an uncommon skin disorder associated with various systemic conditions in Chinese individuals. Thyroid disorders are an overlooked complication and may play an important role in the development of APD. The results of this study indicate that noninvasive dermoscopy and RCM examination are helpful in the rapid diagnosis and early intervention of APD.
Collapse
Affiliation(s)
- Zhe Gao
- Department of DermatologyHangzhou Third People's HospitalHangzhouChina
| | - Si‐Jia Lu
- Department of PathologyHangzhou Third People's HospitalHangzhouChina
| | - Shi‐Jun Shan
- Department of DermatologyHangzhou Third People's HospitalHangzhouChina
| |
Collapse
|