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Jia Y, Liu W, Wang J, Zhang R, Li M, Liu S. A pair of twins with multicystic dysplastic kidney and hydrocephalus caused by a novel homozygous mutation in SPATA33 and CDK10. QJM 2024; 117:302-303. [PMID: 38180891 DOI: 10.1093/qjmed/hcad289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Indexed: 01/07/2024] Open
Affiliation(s)
- Y Jia
- Medical Genetic Department, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
| | - W Liu
- Medical Genetic Department, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
| | - J Wang
- Medical Genetic Department, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
| | - R Zhang
- Medical Genetic Department, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
| | - M Li
- Department of Urology, Qingdao Municipal Hospital Group, NO.5 Middle Dong Hai Road, Qingdao 266071, China
| | - S Liu
- Medical Genetic Department, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, NO.16 Jiang Su Road, Qingdao 266071, China
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Hormel TT, Liang GB, Wei X, Guo Y, Gao M, Wang J, Huang D, Bailey ST, Hwang TS, Jia Y. Visualizing features with wide-field volumetric OCT angiography. Opt Express 2024; 32:10329-10347. [PMID: 38571248 PMCID: PMC11018334 DOI: 10.1364/oe.510640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/16/2024] [Accepted: 02/14/2024] [Indexed: 04/05/2024]
Abstract
Optical coherence tomography (OCT) and its extension OCT angiography (OCTA) have become essential clinical imaging modalities due to their ability to provide depth-resolved angiographic and tissue structural information non-invasively and at high resolution. Within a field of view, the anatomic detail available is sufficient to identify several structural and vascular pathologies that are clinically relevant for multiple prevalent blinding diseases, including age-related macular degeneration (AMD), diabetic retinopathy (DR), and vein occlusions. The main limitation in contemporary OCT devices is that this field of view is limited due to a fundamental trade-off between system resolution/sensitivity, sampling density, and imaging window dimensions. Here, we describe a swept-source OCT device that can capture up to a 12 × 23-mm field of view in a single shot and show that it can identify conventional pathologic features such as non-perfusion areas outside of conventional fields of view. We also show that our approach maintains sensitivity sufficient to visualize novel features, including choriocapillaris morphology beneath the macula and macrophage-like cells at the inner limiting membrane, both of which may have implications for disease.
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Affiliation(s)
- Tristan T. Hormel
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
| | - Guangru B. Liang
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
| | - Xiang Wei
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR 97239, USA
| | - Yukun Guo
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR 97239, USA
| | - Min Gao
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR 97239, USA
| | - Jie Wang
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
| | - David Huang
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
| | - Steven T. Bailey
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
| | - Thomas S. Hwang
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
| | - Yali Jia
- Casey Eye Institutue, Oregon Health and Science University, Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR 97239, USA
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Quintanilla J, Jia Y, Pruess BS, Chavez J, Gall CM, Lynch G, Gunn BG. Pre- versus Post-synaptic Forms of LTP in Two Branches of the Same Hippocampal Afferent. J Neurosci 2024; 44:e1449232024. [PMID: 38326038 PMCID: PMC10919254 DOI: 10.1523/jneurosci.1449-23.2024] [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: 07/31/2023] [Revised: 12/18/2023] [Accepted: 01/22/2024] [Indexed: 02/09/2024] Open
Abstract
There has been considerable controversy about pre- versus postsynaptic expression of memory-related long-term potentiation (LTP), with corresponding disputes about underlying mechanisms. We report here an instance in male mice, in which both types of potentiation are expressed but in separate branches of the same hippocampal afferent. Induction of LTP in the dentate gyrus (DG) branch of the lateral perforant path (LPP) reduces paired-pulse facilitation, is blocked by antagonism of cannabinoid receptor type 1, and is not affected by suppression of postsynaptic actin polymerization. These observations are consistent with presynaptic expression. The opposite pattern of results was obtained in the LPP branch that innervates the distal dendrites of CA3: LTP did not reduce paired-pulse facilitation, was unaffected by the cannabinoid receptor blocker, and required postsynaptic actin filament assembly. Differences in the two LPP termination sites were also noted for frequency facilitation of synaptic responses, an effect that was reproduced in a two-step simulation by small adjustments to vesicle release dynamics. These results indicate that different types of glutamatergic neurons impose different forms of filtering and synaptic plasticity on their afferents. They also suggest that inputs are routed to, and encoded by, different sites within the hippocampus depending upon the pattern of activity arriving over the parent axon.
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Affiliation(s)
- J Quintanilla
- Department of Anatomy & Neurobiology, University of California, Irvine, California 92697
| | - Y Jia
- Department of Anatomy & Neurobiology, University of California, Irvine, California 92697
| | - B S Pruess
- Department of Anatomy & Neurobiology, University of California, Irvine, California 92697
| | - J Chavez
- Department of Anatomy & Neurobiology, University of California, Irvine, California 92697
| | - C M Gall
- Department of Anatomy & Neurobiology, University of California, Irvine, California 92697
- Neurobiology & Behavior, University of California, Irvine, California 92697
| | - G Lynch
- Department of Anatomy & Neurobiology, University of California, Irvine, California 92697
- Psychiatry & Human Behavior, University of California, Irvine, California 92697
| | - B G Gunn
- Department of Anatomy & Neurobiology, University of California, Irvine, California 92697
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Tsuboi K, Mazloumi M, Guo Y, Wang J, Flaxel CJ, Bailey ST, Wilson DJ, Huang D, Jia Y, Hwang TS. Early Sign of Retinal Neovascularization Evolution in Diabetic Retinopathy: A Longitudinal OCT Angiography Study. Ophthalmol Sci 2024; 4:100382. [PMID: 37868804 PMCID: PMC10587637 DOI: 10.1016/j.xops.2023.100382] [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] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/12/2023] [Accepted: 08/07/2023] [Indexed: 10/24/2023]
Abstract
Purpose To assess whether the combination of en face OCT and OCT angiography (OCTA) can capture observable, but subtle, structural changes that precede clinically evident retinal neovascularization (RNV) in eyes with diabetic retinopathy (DR). Design Retrospective, longitudinal study. Participants Patients with DR that had at least 2 visits. Methods We obtained wide-field OCTA scans of 1 eye from each participant and generated en face OCT, en face OCTA, and cross-sectional OCTA. We identified eyes with RNV sprouts, defined as epiretinal hyperreflective materials on en face OCT with flow signals breaching the internal limiting membrane on the cross-sectional OCTA without recognizable RNV on en face OCTA and RNV fronds, defined as recognizable abnormal vascular structures on the en face OCTA. We examined the corresponding location from follow-up or previous visits for the presence or progression of the RNV. Main Outcome Measures The characteristics and longitudinal observation of early signs of RNV. Results From 71 eyes, we identified RNV in 20 eyes with the combination of OCT and OCTA, of which 13 (65%) were photographically graded as proliferative DR, 6 (30%) severe nonproliferative DR, and 1 (5%) moderate nonproliferative diabetic retinopathy. From these eyes, we identified 38 RNV sprouts and 26 RNV fronds at the baseline. Thirty-four RNVs (53%) originated from veins, 24 (38%) were from intraretinal microabnormalities, and 6 (9%) were from a nondilated capillary bed. At the final visit, 53 RNV sprouts and 30 RNV fronds were detected. Ten eyes (50%) showed progression, defined as having a new RNV lesion or the development of an RNV frond from an RNV sprout. Four (11%) RNV sprouts developed into RNV fronds with a mean interval of 7.0 months. Nineteen new RNV sprouts developed during the follow-up, whereas no new RNV frond was observed outside an identified RNV sprout. The eyes with progression were of younger age (P = 0.014) and tended to be treatment naive (P = 0.07) compared with eyes without progression. Conclusions Longitudinal observation demonstrated that a combination of en face OCT and cross-sectional OCTA can identify an earlier form of RNV before it can be recognized on en face OCTA. Financial Disclosures Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
- Kotaro Tsuboi
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
- Department of Ophthalmology, Aichi Medical University, 1-1, Yazako-Karimata, Nagakute, Aichi, 480-1195, Japan
| | - Mehdi Mazloumi
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
| | - Yukun Guo
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
| | - Jie Wang
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | | | - Steven T. Bailey
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
| | - David J. Wilson
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
| | - David Huang
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
| | - Yali Jia
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Thomas S. Hwang
- Casey Eye Institute, Oregon Health and Science University, Portland, Oregon
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5
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Huang N, Hormel TT, Liang GB, Wei X, Guo Y, Chen S, Jia Y. Optimizing numerical k-sampling for swept-source optical coherence tomography angiography. Opt Lett 2024; 49:1201-1204. [PMID: 38426973 DOI: 10.1364/ol.518720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024]
Abstract
High-quality swept-source optical coherence tomography (SS-OCT) requires accurate k-sampling, which is equally vital for optical coherence tomography angiography (OCTA). Most SS-OCT systems are equipped with hardware-driven k-sampling. However, this conventional approach raises concerns over system cost, optical alignment, imaging depth, and stability in the clocking circuit. This work introduces an optimized numerical k-sampling method to replace the additional k-clock hardware. Using this method, we can realize high axial resolution (4.9-µm full-width-half-maximum, in air) and low roll-off (2.3 dB loss) over a 4-mm imaging depth. The high axial resolution and sensitivity achieved by this simple numerical method can reveal anatomic and microvascular structures with structural OCT and OCTA in both macular and deeper tissues, including the lamina cribrosa, suggesting its usefulness in imaging retinopathy and optic neuropathy.
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Gao M, Hormel TT, Guo Y, Tsuboi K, Flaxel CJ, Huang D, Hwang TS, Jia Y. Perfused and Nonperfused Microaneurysms Identified and Characterized by Structural and Angiographic OCT. Ophthalmol Retina 2024; 8:108-115. [PMID: 37673397 DOI: 10.1016/j.oret.2023.08.019] [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: 04/05/2023] [Revised: 08/18/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
PURPOSE Microaneurysms (MAs) have distinct, oval-shaped, hyperreflective walls on structural OCT, and inconsistent flow signal in the lumen with OCT angiography (OCTA). Their relationship to regional macular edema in diabetic retinopathy (DR) has not been quantitatively explored. DESIGN Retrospective, cross-sectional study. PARTICIPANTS A total of 99 participants, including 23 with mild, nonproliferative DR (NPDR), 25 with moderate NPDR, 34 with severe NPDR, and 17 with proliferative DR. METHODS We obtained 3 × 3-mm scans with a commercial device (Solix, Visionix/Optovue) in 99 patients with DR. Trained graders manually identified MAs and their location relative to the anatomic layers from cross-sectional OCT. Microaneurysms were first classified as perfused if flow signal was present in the OCTA channel. Then, perfused MAs were further classified into fully and partially perfused MAs based on the flow characteristics in en face OCTA. The presence of retinal fluid based on OCT near MAs was compared between perfused and nonperfused types. We also compared OCT-based MA detection to fundus photography (FP)- and fluorescein angiography (FA)-based detection. MAIN OUTCOME MEASURES OCT-identified MAs can be classified according to colocalized OCTA flow signal into fully perfused, partially perfused, and nonperfused types. Fully perfused MAs may be more likely to be associated with diabetic macular edema (DME) than those without flow. RESULTS We identified 308 MAs (166 fully perfused, 88 partially perfused, 54 nonperfused) in 42 eyes using OCT and OCTA. Nearly half of the MAs identified in this study straddle the inner nuclear layer and outer plexiform layer. Compared with partially perfused and nonperfused MAs, fully perfused MAs were more likely to be associated with local retinal fluid. The associated fluid volumes were larger with fully perfused MAs compared with other types. OCT/OCTA detected all MAs found on FP. Although not all MAs seen with FA were identified with OCT, some MAs seen with OCT were not visible with FA or FP. CONCLUSIONS OCT-identified MAs with colocalized flow on OCTA are more likely to be associated with DME than those without flow. FINANCIAL DISCLOSURE(S) Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
- Min Gao
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Tristan T Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Yukun Guo
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon; Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Kotaro Tsuboi
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Christina J Flaxel
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon; Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Thomas S Hwang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon; Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon.
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Neuhaus K, Khan S, Thaware O, Ni S, Aga M, Jia Y, Redd T, Chen S, Huang D, Jian Y. Real-time line-field optical coherence tomography for cellular resolution imaging of biological tissue. Biomed Opt Express 2024; 15:1059-1073. [PMID: 38404311 PMCID: PMC10890841 DOI: 10.1364/boe.511187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/27/2024]
Abstract
A real-time line-field optical coherence tomography (LF-OCT) system is demonstrated with image acquisition rates of up to 5000 B-frames or 2.5 million A-lines per second for 500 A-lines per B-frame. The system uses a high-speed low-cost camera to achieve continuous data transfer rates required for real-time imaging, allowing the evaluation of future applications in clinical or intraoperative environments. The light source is an 840 nm super-luminescent diode. Leveraging parallel computing with GPU and high speed CoaXPress data transfer interface, we were able to acquire, process, and display OCT data with low latency. The studied system uses anamorphic beam shaping in the detector arm, optimizing the field of view and sensitivity for imaging biological tissue at cellular resolution. The lateral and axial resolution measured in air were 1.7 µm and 6.3 µm, respectively. Experimental results demonstrate real-time inspection of the trabecular meshwork and Schlemm's canal on ex vivo corneoscleral wedges and real-time imaging of endothelial cells of human subjects in vivo.
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Affiliation(s)
- Kai Neuhaus
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
| | - Shanjida Khan
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
| | - Omkar Thaware
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
| | - Shuibin Ni
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
| | - Mini Aga
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
| | - Travis Redd
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
| | - Siyu Chen
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
| | - Yifan Jian
- Casey Eye Institute, Oregon Health & Science University , Portland, OR 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
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Zang P, Hormel TT, Wang J, Guo Y, Bailey ST, Flaxel CJ, Huang D, Hwang TS, Jia Y. Interpretable Diabetic Retinopathy Diagnosis Based on Biomarker Activation Map. IEEE Trans Biomed Eng 2024; 71:14-25. [PMID: 37405891 PMCID: PMC10796196 DOI: 10.1109/tbme.2023.3290541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
OBJECTIVE Deep learning classifiers provide the most accurate means of automatically diagnosing diabetic retinopathy (DR) based on optical coherence tomography (OCT) and its angiography (OCTA). The power of these models is attributable in part to the inclusion of hidden layers that provide the complexity required to achieve a desired task. However, hidden layers also render algorithm outputs difficult to interpret. Here we introduce a novel biomarker activation map (BAM) framework based on generative adversarial learning that allows clinicians to verify and understand classifiers' decision-making. METHODS A data set including 456 macular scans were graded as non-referable or referable DR based on current clinical standards. A DR classifier that was used to evaluate our BAM was first trained based on this data set. The BAM generation framework was designed by combing two U-shaped generators to provide meaningful interpretability to this classifier. The main generator was trained to take referable scans as input and produce an output that would be classified by the classifier as non-referable. The BAM is then constructed as the difference image between the output and input of the main generator. To ensure that the BAM only highlights classifier-utilized biomarkers an assistant generator was trained to do the opposite, producing scans that would be classified as referable by the classifier from non-referable scans. RESULTS The generated BAMs highlighted known pathologic features including nonperfusion area and retinal fluid. CONCLUSION/SIGNIFICANCE A fully interpretable classifier based on these highlights could help clinicians better utilize and verify automated DR diagnosis.
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Affiliation(s)
- Pengxiao Zang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239 USA
| | - Tristan T. Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
| | - Jie Wang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239 USA
| | - Yukun Guo
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239 USA
| | - Steven T. Bailey
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
| | - Christina J. Flaxel
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239 USA
| | - Thomas S. Hwang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239 USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239 USA
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Peng Z, Jia Y, Li J, Wang G. Diagnostic performance of SPECT in lumbar spondylolysis: a systematic review and meta-analysis. Clin Radiol 2024; 79:e137-e146. [PMID: 37919216 DOI: 10.1016/j.crad.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 08/16/2023] [Accepted: 10/05/2023] [Indexed: 11/04/2023]
Abstract
AIM To evaluate the diagnostic value and clinical applicability of single-photon-emission computed tomography (SPECT) for lumbar spondylolysis using meta-analysis. MATERIALS AND METHODS Stata 12.0, was used to test the heterogeneity, and the pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, and other effect sizes were collected to generate the summary receiver operating characteristic (SROC) curve for comprehensive evaluation. Meta-regression analysis was used to explore the source of heterogeneity, and subgroup analysis was performed. Funnel plots, Fagan's line diagrams, and likelihood ratio dot plots were drawn to evaluate publication bias and clinical applicability. RESULTS Eight studies involving 785 patients were included. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, odds ratio, and area under the SROC curve of SPECT for the diagnosis of lumbar spondylolysis were 0.85 (95% confidence interval [CI]: 0.70 0.93), 0.92 (95% CI: 0.60 0.99), 11.01 (95% CI: 1.61 75.18), 0.17 (95% CI: 0.08 0.35), 0.92 (95% CI: 0.90 0.94). Meta-regression analysis showed that the sources of heterogeneity were region and age. Subgroup analysis showed that the specificity of the child and adolescent subgroup was significantly higher than that of the middle-aged and elderly subgroups. Deek's funnel plots showed no significant publication bias. The pooled effect of the likelihood ratio dot plot for diagnosis is in the upper-right quadrant. CONCLUSION As a diagnostic tool for spondylolysis, SPECT has a high degree of specificity, moderate sensitivity, and relatively high diagnostic effectiveness. It can be used as an auxiliary sign in the diagnosis and treatment of lumbar spondylolysis.
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Affiliation(s)
- Z Peng
- Department of Spinal Surgery, The People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen, 518101, China.
| | - Y Jia
- Department of Spinal Surgery, The People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen, 518101, China
| | - J Li
- Department of Spinal Surgery, The People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen, 518101, China
| | - G Wang
- Department of Spinal Surgery, The People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen, 518101, China
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Wongchaisuwat N, Wang J, Yang P, Everett L, Gregor A, Sahel JA, Nischal KK, Pennesi ME, Gillingham MB, Jia Y. Optical coherence tomography angiography of choroidal neovascularization in long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency (LCHADD). Am J Ophthalmol Case Rep 2023; 32:101958. [PMID: 38161518 PMCID: PMC10757195 DOI: 10.1016/j.ajoc.2023.101958] [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: 06/03/2023] [Revised: 10/26/2023] [Accepted: 11/02/2023] [Indexed: 01/03/2024] Open
Abstract
Purpose To report the clinical utility of optical coherence tomography angiography (OCTA) for demonstrating choroidal neovascularization (CNV) associated with Long-Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiency (LCHADD) retinopathy. Methods Thirty-three participants with LCHADD (age 7-36 years; median 17) were imaged with OCTA and the Center for Ophthalmic Optics & Lasers Angiography Reading Toolkit (COOL-ART) software was implemented to process OCTA scans. Results Seven participants (21 %; age 17-36 years; median 25) with LCHADD retinopathy demonstrated evidence of CNV by retinal examination or presence of CNV within outer retinal tissue on OCTA scans covering 3 × 3 and/or 6 × 6-mm. These sub-clinical CNVs are adjacent to hyperpigmented areas in the posterior pole. CNV presented at stage 2 or later of LCHADD retinopathy prior to the disappearance of RPE pigment in the macula. Conclusion OCTA can be applied as a non-invasive method to evaluate the retinal and choroidal microvasculature. OCTA can reveal CNV in LCHADD even when the clinical exam is inconclusive. These data suggest that the incidence of CNV is greater than expected and can occur even in the early stages of LCHADD retinopathy.
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Affiliation(s)
- Nida Wongchaisuwat
- Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, OR, USA
- Department of Ophthalmology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jie Wang
- Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, OR, USA
| | - Paul Yang
- Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, OR, USA
| | - Lesley Everett
- Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, OR, USA
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, USA
| | - Ashley Gregor
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, USA
| | - Jose Alain Sahel
- Vision Institute, University of Pittsburgh Medical Center and School of Medicine, Pennsylvania, USA
| | - Ken K. Nischal
- Vision Institute, University of Pittsburgh Medical Center and School of Medicine, Pennsylvania, USA
- UPMC Children's Hospital, Pennsylvania, USA
| | - Mark E. Pennesi
- Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, OR, USA
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, USA
| | - Melanie B. Gillingham
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, USA
| | - Yali Jia
- Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, OR, USA
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11
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Waheed NK, Rosen RB, Jia Y, Munk MR, Huang D, Fawzi A, Chong V, Nguyen QD, Sepah Y, Pearce E. Optical coherence tomography angiography in diabetic retinopathy. Prog Retin Eye Res 2023; 97:101206. [PMID: 37499857 DOI: 10.1016/j.preteyeres.2023.101206] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 03/04/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 07/29/2023]
Abstract
There remain many unanswered questions on how to assess and treat the pathology and complications that arise from diabetic retinopathy (DR). Optical coherence tomography angiography (OCTA) is a novel and non-invasive three-dimensional imaging method that can visualize capillaries in all retinal layers. Numerous studies have confirmed that OCTA can identify early evidence of microvascular changes and provide quantitative assessment of the extent of diseases such as DR and its complications. A number of informative OCTA metrics could be used to assess DR in clinical trials, including measurements of the foveal avascular zone (FAZ; area, acircularity, 3D para-FAZ vessel density), vessel density, extrafoveal avascular zones, and neovascularization. Assessing patients with DR using a full-retinal slab OCTA image can limit segmentation errors and confounding factors such as those related to center-involved diabetic macular edema. Given emerging data suggesting the importance of the peripheral retinal vasculature in assessing and predicting DR progression, wide-field OCTA imaging should also be used. Finally, the use of automated methods and algorithms for OCTA image analysis, such as those that can distinguish between areas of true and false signals, reconstruct images, and produce quantitative metrics, such as FAZ area, will greatly improve the efficiency and standardization of results between studies. Most importantly, clinical trial protocols should account for the relatively high frequency of poor-quality data related to sub-optimal imaging conditions in DR and should incorporate time for assessing OCTA image quality and re-imaging patients where necessary.
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Affiliation(s)
- Nadia K Waheed
- New England Eye Center, Tufts University School of Medicine, Boston, MA, USA.
| | - Richard B Rosen
- New York Eye and Ear Infirmary of Mount Sinai, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yali Jia
- School of Medicine, Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Marion R Munk
- Augenarzt-Praxisgemeinschaft Gutblick AG, Pfäffikon, Switzerland
| | - David Huang
- School of Medicine, Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Amani Fawzi
- Department of Ophthalmology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Victor Chong
- Institute of Ophthalmology, University College London, London, UK
| | - Quan Dong Nguyen
- Byers Eye Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Yasir Sepah
- Byers Eye Institute, Stanford University School of Medicine, Stanford, CA, USA
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12
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Ni S, Nguyen TTP, Ng R, Woodward M, Ostmo S, Jia Y, Chiang MF, Huang D, Skalet AH, Campbell JP, Jian Y. Panretinal Optical Coherence Tomography. IEEE Trans Med Imaging 2023; 42:3219-3228. [PMID: 37216244 PMCID: PMC10615839 DOI: 10.1109/tmi.2023.3278269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We introduce a new concept of panoramic retinal (panretinal) optical coherence tomography (OCT) imaging system with a 140° field of view (FOV). To achieve this unprecedented FOV, a contact imaging approach was used which enabled faster, more efficient, and quantitative retinal imaging with measurement of axial eye length. The utilization of the handheld panretinal OCT imaging system could allow earlier recognition of peripheral retinal disease and prevent permanent vision loss. In addition, adequate visualization of the peripheral retina has a great potential for better understanding disease mechanisms regarding the periphery. To the best of our knowledge, the panretinal OCT imaging system presented in this manuscript has the widest FOV among all the retina OCT imaging systems and offers significant values in both clinical ophthalmology and basic vision science.
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13
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Jia Y, Szewczyk-Bieda M, Greenhalgh R, Drinkwater K. Preventing post-contrast acute kidney injury and hypersensitivity reactions: UK national audit. Clin Radiol 2023; 78:e898-e907. [PMID: 37612224 DOI: 10.1016/j.crad.2023.07.017] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/06/2023] [Accepted: 07/23/2023] [Indexed: 08/25/2023]
Abstract
AIM To audit UK radiology departmental protocols related to the prevention of Iodine-based contrast media (ICM) adverse drug reactions (ADRs) and to assess their compliance with the Royal College of Radiologists (RCR) endorsed Royal Australian and New Zealand College of Radiologists' 2018 Iodinated Contrast Guidelines. MATERIALS AND METHODS Questionnaires were sent to all UK acute National Health Service (NHS) providers treating adult patients with an audit lead registered with the RCR (162 providers encompassing 211 hospital radiology departments). The questionnaire included three main sections: renal function screening, renal protection regimens, and hypersensitivity reactions prevention and follow-up. Data collection was conducted between April and July 2022. RESULTS Sixty-one per cent (129/211) of departments responded, representing 67% of eligible providers. An independent imaging services provider supplied one additional set of data (n=130 overall). Of the responding departments, for post-contrast acute kidney injury (PC-AKI), 41% and 56% had the recommended risk assessment for inpatients and outpatients, respectively. Renal function testing was often over-utilised, and their results were applied improperly. Sixty-eight per cent of departments used the advised threshold for considering renal protection. For hypersensitivity reactions, 9% of departments had the correct risk assessment. Thirty-six per cent of departments had the correct risk mitigation protocol for identified high-risk patients. The documentation and follow-up for hypersensitivity reactions were similarly inadequate. CONCLUSION Local protocols on preventing ICM ADRs were largely non-compliant with RCR guidelines. Departments need to update their protocols in line with current evidence to avoid iatrogenic morbidity or unnecessary tests and over-precaution.
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Affiliation(s)
- Y Jia
- Department of Medicine, Imperial College London, London, UK.
| | - M Szewczyk-Bieda
- Department of Clinical Radiology, Ninewells Hospital, NHS Tayside, Dundee, UK
| | - R Greenhalgh
- Department of Radiology, London North West University Healthcare NHS Trust, London, UK
| | - K Drinkwater
- Directorate of Education and Professional Practice, The Royal College of Radiologists, London, UK
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14
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Liang GB, Hormel TT, Wei X, Guo Y, Wang J, Hwang T, Jia Y. Single-shot OCT and OCT angiography for slab-specific detection of diabetic retinopathy. Biomed Opt Express 2023; 14:5682-5695. [PMID: 38021127 PMCID: PMC10659794 DOI: 10.1364/boe.503476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 12/01/2023]
Abstract
In this study, we present an optical coherence tomographic angiography (OCTA) prototype using a 500 kHz high-speed swept-source laser. This system can generate a 75-degree field of view with a 10.4 µm lateral resolution with a single acquisition. With this prototype we acquired detailed, wide-field, and plexus-specific images throughout the retina and choroid in eyes with diabetic retinopathy, detecting early retinal neovascularization and locating pathology within specific retinal slabs. Our device could also visualize choroidal flow and identify signs of key biomarkers in diabetic retinopathy.
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Affiliation(s)
- Guangru B. Liang
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S.W. Bond Avenue, Portland, OR 97239, USA
- Casey Eye Institute, Oregon Health & Science University, 515 S.W. Campus Drive, Portland, OR 97239, USA
| | - Tristan T. Hormel
- Casey Eye Institute, Oregon Health & Science University, 515 S.W. Campus Drive, Portland, OR 97239, USA
| | - Xiang Wei
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S.W. Bond Avenue, Portland, OR 97239, USA
- Casey Eye Institute, Oregon Health & Science University, 515 S.W. Campus Drive, Portland, OR 97239, USA
| | - Yukun Guo
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S.W. Bond Avenue, Portland, OR 97239, USA
- Casey Eye Institute, Oregon Health & Science University, 515 S.W. Campus Drive, Portland, OR 97239, USA
| | - Jie Wang
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S.W. Bond Avenue, Portland, OR 97239, USA
- Casey Eye Institute, Oregon Health & Science University, 515 S.W. Campus Drive, Portland, OR 97239, USA
| | - Thomas Hwang
- Casey Eye Institute, Oregon Health & Science University, 515 S.W. Campus Drive, Portland, OR 97239, USA
| | - Yali Jia
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S.W. Bond Avenue, Portland, OR 97239, USA
- Casey Eye Institute, Oregon Health & Science University, 515 S.W. Campus Drive, Portland, OR 97239, USA
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15
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Gao M, Hormel TT, Guo Y, Tsuboi K, Flaxel CJ, Huang D, Hwang TS, Jia Y. Perfused and Nonperfused Microaneurysms Identified and Characterized by Structural and Angiographic OCT. ArXiv 2023:arXiv:2303.13611v2. [PMID: 37873013 PMCID: PMC10593066] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Purpose Microaneurysms (MAs) have distinct, oval-shaped, hyperreflective walls on structural OCT, and inconsistent flow signal in the lumen with OCT angiography (OCTA). Their relationship to regional macular edema in diabetic retinopathy (DR) has not been quantitatively explored. Design Retrospective, cross-sectional study. Participants A total of 99 participants, including 23 with mild, nonproliferative DR (NPDR), 25 with moderate NPDR, 34 with severe NPDR, and 17 with proliferative DR. Methods We obtained 3 × 3-mm scans with a commercial device (Solix, Visionix/Optovue) in 99 patients with DR. Trained graders manually identified MAs and their location relative to the anatomic layers from cross-sectional OCT. Microaneurysms were first classified as perfused if flow signal was present in the OCTA channel. Then, perfused MAs were further classified into fully and partially perfused MAs based on the flow characteristics in en face OCTA. The presence of retinal fluid based on OCT near MAs was compared between perfused and nonperfused types. We also compared OCT-based MA detection to fundus photography (FP)- and fluorescein angiography (FA)-based detection. Main Outcome Measures OCT-identified MAs can be classified according to colocalized OCTA flow signal into fully perfused, partially perfused, and nonperfused types. Fully perfused MAs may be more likely to be associated with diabetic macular edema (DME) than those without flow. Results We identified 308 MAs (166 fully perfused, 88 partially perfused, 54 nonperfused) in 42 eyes using OCT and OCTA. Nearly half of the MAs identified in this study straddle the inner nuclear layer and outer plexiform layer. Compared with partially perfused and nonperfused MAs, fully perfused MAs were more likely to be associated with local retinal fluid. The associated fluid volumes were larger with fully perfused MAs compared with other types. OCT/OCTA detected all MAs found on FP. Although not all MAs seen with FA were identified with OCT, some MAs seen with OCT were not visible with FA or FP. Conclusions OCT-identified MAs with colocalized flow on OCTA are more likely to be associated with DME than those without flow. Financial Disclosures Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article. Ophthalmology Retina 2023;■:1-8 © 2023 by the American Academy of Ophthalmology. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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Affiliation(s)
- Min Gao
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Tristan T. Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Yukun Guo
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Kotaro Tsuboi
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | | | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Thomas S. Hwang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
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16
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Choi W, Jia Y, Kwak J, Dicker AP, Simone NL, Storozynsky E, Jain V, Vinogradskiy Y. Novel Functional Radiomics for Prediction of Cardiac PET Avidity in Lung Cancer Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:S155. [PMID: 37784390 DOI: 10.1016/j.ijrobp.2023.06.578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Traditional methods of evaluating cardiotoxicity focus solely on radiation doses to the heart and do not incorporate functional imaging information. Functional imaging has great potential to improve the ability to provide early prediction for cardiotoxicity for lung cancer patients undergoing radiotherapy. FDG-based PET/CT imaging is routinely obtained as part of standard staging work up for lung cancer patients. Although FDG PET/CT scans are typically used to evaluate the tumor, imaging guidelines note that FDG PET/CT scans are an FDA-approved method to image for cardiac inflammation, and studies have noted that the PET cardiac signal can be predictive of clinical outcomes. The purpose of this work was to develop a radiomics model to predict clinical cardiac assessment of standard of care FDG PET/CT scans. MATERIALS/METHODS The study included 100 consecutive lung cancer patients treated with radiotherapy who underwent standard pre-treatment FDG-PET/CT staging scans. A clinician reviewed the PET/CT scans per clinical cardiac assessment guidelines and classified the cardiac uptake as: 0 = uniform diffuse, 1 = absent, 2 = heterogeneous, with event rates of 20%, 44%, and 35%, respectively. The heart was delineated and 200 novel functional radiomics features were selected to classify cardiac FDG uptake patterns. We divided the data into an 80% training set and a 20% test set to train and evaluate the classification models. Feature reduction was carried out using the Wilcoxon test (with Bonferroni adjusted p<0.05), hierarchical clustering, and Recursive Feature Elimination. Two automatic machine learning (AutoML) frameworks were used to determine classification models: a Random Forest Classifier (Tree-based Pipeline Optimization Tool, TPOT) and Linear Discriminant Analysis (AutoSklearn). 10-fold cross validation was carried out for training and the accuracy of the ability of the models to predict for clinical cardiac assessment is reported. RESULTS Fifty-one independent radiomics features were reduced to 3 clinically pertinent features (PET 2D Skewness, PET Grey Level Co-occurrence Matrix Correlation, and PET Median) using feature reduction techniques. The model selected by TPOT showed 89.8% predictive accuracy in the cross validation of the training set and 85% predictive accuracy on the test set. The model selected by AutoSklearn showed 89.7% predictive accuracy in the cross validation of the training set and 80% predictive accuracy on the test set. CONCLUSION The novelty of this work is that it is the first study to develop and evaluate functional cardiac radiomic features from standard of care FDG PET/CT scans with the data showing good predictive accuracy with clinical imaging evaluation. If validated, the current work provides automated methods to provide functional cardiac information using standard of care imaging that can be used as an imaging biomarker for early clinical toxicity prediction for lung cancer patients.
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Affiliation(s)
- W Choi
- Department of Radiation Oncology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA
| | - Y Jia
- Department of Radiation Oncology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA
| | - J Kwak
- University of Colorado School of Medicine, Aurora, CO
| | - A P Dicker
- Department of Radiation Oncology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA
| | - N L Simone
- Department of Radiation Oncology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA
| | - E Storozynsky
- Department of Cardiology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA
| | - V Jain
- Department of Radiation Oncology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA
| | - Y Vinogradskiy
- Department of Radiation Oncology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA
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17
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Ye J, Wang Y, Wang Y, Hong L, Kang J, Jia Y, Li M, Chen Y, Wu Z, Wang H. Improvement of soil acidification and ammonium nitrogen content in tea plantations by long-term use of organic fertilizer. Plant Biol (Stuttg) 2023; 25:994-1008. [PMID: 37345615 DOI: 10.1111/plb.13554] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 05/07/2023] [Indexed: 06/23/2023]
Abstract
Soil acidification is common in some Chinese tea plantations, which seriously affected growth of tea trees. Hence, it is essential to explore soil remediation in acidified tea plantations for sustainable development of the tea industry. We sought to determine how different fertilizers affect acidified soil and their N transformation in tea plantations. Different fertilizers were used on acidified tea plantation soils for 4 years (2017-2021), and changes in soil pH, indices related to soil N transformation and tea yield were analysed to construct interaction networks of these indices and find which had the largest influence on fertilization. Long-term use of sheep manure reduced soil acidification, increased soil pH, enhanced the number and intensity of N-fixing and ammonifying bacteria, urease, protease, asparaginase and N-acetamide glucose ribosidase activity and nifH gene expression. This treatment reduced the number and intensity of soil nitrifying and denitrifying bacteria, nitrate reductase and nitrite reductase activity, while the expression of amoA-AOA, nirK, nirS, narG and nosZ in turn increased ammonium N content of the soil, reduced nitrate N content, and enhanced tea yield. Topsis index weight analysis showed that ammonium N content in the soil had the largest impact among fertilization effects. Long-term use of sheep manure was beneficial in restoring the balance of the micro-ecosystem in acidified soil. This study provides an important practical basis for soil remediation and fertilizer management in acidified tea plantation soils.
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Affiliation(s)
- J Ye
- College of Tea and Food, Wuyi University, Wuyishan, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Y Wang
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Science, Longyan University, Longyan, China
| | - Y Wang
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - L Hong
- College of Life Science, Longyan University, Longyan, China
| | - J Kang
- College of Life Science, Longyan University, Longyan, China
| | - Y Jia
- College of Life Science, Longyan University, Longyan, China
| | - M Li
- College of Life Science, Longyan University, Longyan, China
| | - Y Chen
- College of Life Science, Longyan University, Longyan, China
| | - Z Wu
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - H Wang
- College of Tea and Food, Wuyi University, Wuyishan, China
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18
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Hormel TT, Jia Y. OCT angiography and its retinal biomarkers [Invited]. Biomed Opt Express 2023; 14:4542-4566. [PMID: 37791289 PMCID: PMC10545210 DOI: 10.1364/boe.495627] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 10/05/2023]
Abstract
Optical coherence tomography angiography (OCTA) is a high-resolution, depth-resolved imaging modality with important applications in ophthalmic practice. An extension of structural OCT, OCTA enables non-invasive, high-contrast imaging of retinal and choroidal vasculature that are amenable to quantification. As such, OCTA offers the capability to identify and characterize biomarkers important for clinical practice and therapeutic research. Here, we review new methods for analyzing biomarkers and discuss new insights provided by OCTA.
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Affiliation(s)
- Tristan T. Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
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19
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Tu J, Chen CY, Yang HX, Jia Y, Geng HY, Li HR. [Clinical presentation and prognosis in children over 10-year-old with primary nephrotic syndrome]. Zhonghua Er Ke Za Zhi 2023; 61:708-713. [PMID: 37528011 DOI: 10.3760/cma.j.cn112140-20230104-00007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Objective: To summary the clinical presentation and prognosis of primary nephrotic syndrome (PNS) in teenagers. Methods: The clinical data, renal pathological types and prognosis of 118 children over 10-year-old with PNS treated in the Department of Nephrology of the Children's Hospital Affiliated to Capital Institute of Pediatrics from January 2010 to December 2020 were retrospectively analyzed, with 408 children ≤10-year-old as control group synchronously. Chi-square test was used to compare the difference of clinical types, pathologic types, response to steroids and tubulointerstitial changes between the groups. The teenagers with steroid resistant nephrotic syndrome (SRNS) were divided into initial non-responder group and late non-responder group. Kaplan-Meier method was used to compare the difference of persistent proteinuria, and Fisher's exact test for the histological types. Results: There were 118 children >10-year-old, including 74 males and 44 females, with the onset age of 12.1 (10.8, 13.4) years; and 408 children ≤10-year-old with the onset age of 4.5 (3.2, 6.8) years. The proportion of SRNS was significantly higher in patients >10-year-old than those ≤10-year-old (24.6% (29/118) vs. 15.9% (65/408), χ2=4.66, P=0.031). There was no statistical difference in the pathological types between >10-year-old and ≤10-year-old (P>0.05), with minimal change disease the most common type (56.0% (14/25) vs. 60.5% (26/43)). The percentage of cases with renal tubulointerstitial lesions was significantly higher in children >10-year-old compared to those ≤10-year-old (60.0% (15/25) vs. 23.3% (10/43), χ2=9.18, P=0.002). There were 29 cases presented with SRNS in PNS over 10-year-old, including 19 initial non-responders and 10 late non-responders. Analyzed by Kaplan-Meier curve, it was shown that the percentage of persistent proteinuria after 6 months of immunosuppressive treatments was significantly higher in initial non-responders than those of the late non-responders ((22±10)% vs. 0, χ2=14.68, P<0.001); the percentage of minimal change disease was significantly higher in patients of late non-responders than those of the initial non-responders (5/6 vs. 3/13, P=0.041). Of the 63 >10-year-old with steroid-sensitive nephrotic syndrome followed up more than one year, 38 cases (60.3%) had relapse, and 14 cases (22.2%) were frequent relapse nephrotic syndrome and steroid dependent nephrotic syndrome. Among the 45 patients followed up over 18-year-old, 22 cases (48.9%) had recurrent proteinuria continued to adulthood, 3 cases of SRNS progressed to kidney insufficiency, and one of them developed into end stage kidney disease and was administrated with hemodialysis. Conclusions: Cases over 10-year-old with PNS tend to present with SRNS and renal tubulointerstitial lesions. They have a favorable prognosis, but are liable to relapse in adulthood.
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Affiliation(s)
- J Tu
- Department of Nephrology, Children's Hospital Affiliated to Capital Institute of Pediatrics,Beijing 100020, China
| | - C Y Chen
- Department of Nephrology, Children's Hospital Affiliated to Capital Institute of Pediatrics,Beijing 100020, China
| | - H X Yang
- Department of Nephrology, Children's Hospital Affiliated to Capital Institute of Pediatrics,Beijing 100020, China
| | - Y Jia
- Department of Nephrology, Children's Hospital Affiliated to Capital Institute of Pediatrics,Beijing 100020, China
| | - H Y Geng
- Department of Nephrology, Children's Hospital Affiliated to Capital Institute of Pediatrics,Beijing 100020, China
| | - H R Li
- Department of Nephrology, Children's Hospital Affiliated to Capital Institute of Pediatrics,Beijing 100020, China
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Chen S, Ni S, Jiménez-Villar A, Jian Y, Jia Y, Huang D. Optical coherence tomography split-spectrum amplitude-decorrelation optoretinography. Opt Lett 2023; 48:3921-3924. [PMID: 37527083 DOI: 10.1364/ol.492178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/29/2023] [Indexed: 08/03/2023]
Abstract
This pilot study reports the development of optical coherence tomography (OCT) split-spectrum amplitude-decorrelation optoretinography (SSADOR) that measures spatially resolved photoreceptor response to light stimuli. Using spectrally multiplexed narrowband OCT, SSADOR improves sensitivity to microscopic changes without the need for cellular resolution or optical phase detection. Therefore, a large field of view (up to 3 × 1 mm2 demonstrated) using conventional OCT instrument design can be achieved, paving the way for clinical translation. SSADOR promises a fast, objective, and quantifiable functional biomarker for photoreceptor damage in the macula.
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21
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Tsuboi K, Mazloumi M, Guo Y, Wang J, Flaxel CJ, Bailey ST, Huang D, Jia Y, Hwang TS. Utility of En Face OCT for the Detection of Clinically Unsuspected Retinal Neovascularization in Patients with Diabetic Retinopathy. Ophthalmol Retina 2023; 7:683-691. [PMID: 36918122 PMCID: PMC10440281 DOI: 10.1016/j.oret.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/28/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
PURPOSE To assess the value of en face OCT for detecting clinically unsuspected retinal neovascularization (RNV) in patients with nonproliferative diabetic retinopathy (NPDR). DESIGN A retrospective, cross-sectional study. PARTICIPANTS Treatment-naïve patients clinically graded as NPDR in an ongoing prospective observational OCT angiography (OCTA) study at a tertiary care center. METHODS Each patient underwent imaging of 1 eye with a spectral-domain OCTA, generating a 17 × 17-mm widefield image by montaging four 9 × 9-mm scans. Two independent graders examined a combination of en face OCT, en face OCTA with a custom vitreoretinal interface slab, and cross-sectional OCTA to determine the presence of RNV. We measured the area of RNV flow within RNV lesions on en face OCTA. MAIN OUTCOME MEASURES Detection rate of clinically occult RNV with OCT and OCTA. RESULTS Of 63 enrolled eyes, 27 (43%) were clinically graded as severe NPDR, 16 (25%) as moderate NPDR, and 20 (32%) as mild NPDR. Using the combination of en face OCT, en face OCTA, and cross-sectional OCTA, the graders detected 42 RNV lesions in 12 (19%) eyes, of which 8 (67%) were graded as severe NPDR, 2 (17%) as moderate NPDR, and 2 (17%) as mild NPDR. The sensitivity of en face OCT alone for detecting eyes with RNV was similar to that of en face OCTA alone (100% vs. 92%; P = 0.32), whereas the specificity of en face OCT alone was significantly lower than that of en face OCTA alone (32% vs. 73%; P < 0.001). For detecting individual RNV lesions, the en face OCT was 100% sensitive, compared with 67% sensitivity for the en face OCTA (P < 0.001). The area of RNV lesions that manual grading with en face OCTA alone missed was significantly smaller than that of manually detectable RNV (Mean [standard deviation] RNV flow area, 0.015 [0.020] mm2 vs. 0.16 [0.36] mm2; P < 0.001). CONCLUSION The combination of en face OCT and OCTA can detect clinically occult RNV with high sensitivity. For screening these small lesions, en face OCT may be a useful imaging modality. FINANCIAL DISCLOSURE(S) Proprietary or commercial disclosure may be found after the references.
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Affiliation(s)
- Kotaro Tsuboi
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Mehdi Mazloumi
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Yukun Guo
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Jie Wang
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon; Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Christina J Flaxel
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Steven T Bailey
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - David Huang
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Yali Jia
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon; Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Thomas S Hwang
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon.
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22
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de Souza N, Esopenko C, Jia Y, Parrott JS, Merkley T, Dennis E, Hillary F, Velez C, Cooper D, Kennedy J, Lewis J, York G, Menefee D, McCauley S, Bowles AO, Wilde E, Tate DF. Discriminating Mild Traumatic Brain Injury and Posttraumatic Stress Disorder Using Latent Neuroimaging and Neuropsychological Profiles in Active-Duty Military Service Members. J Head Trauma Rehabil 2023; 38:E254-E266. [PMID: 36602276 PMCID: PMC10264548 DOI: 10.1097/htr.0000000000000848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Mild traumatic brain injury (mTBI) and posttraumatic stress disorder (PTSD) commonly occur among military Service Members and Veterans and have heterogenous, but also overlapping symptom presentations, which often complicate the diagnoses of underlying impairments and development of effective treatment plans. Thus, we sought to examine whether the combination of whole brain gray matter (GM) and white matter (WM) structural measures with neuropsychological performance can aid in the classification of military personnel with mTBI and PTSD. METHODS Active-Duty US Service Members ( n = 156; 87.8% male) with a history of mTBI, PTSD, combined mTBI+PTSD, or orthopedic injury completed a neuropsychological battery and T1- and diffusion-weighted structural neuroimaging. Cortical, subcortical, ventricular, and WM volumes and whole brain fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), and axial diffusivity (AD) were calculated. Latent profile analyses were performed to determine how the GM and WM indicators, together with neuropsychological indicators, classified individuals. RESULTS For both GM and WM, respectively, a 4-profile model was the best fit. The GM model identified greater ventricular volumes in Service Members with cognitive symptoms, including those with a diagnosis of mTBI, either alone or with PTSD. The WM model identified reduced FA and elevated RD in those with psychological symptoms, including those with PTSD or mTBI and comorbid PTSD. However, contrary to expectation, a global neural signature unique to those with comorbid mTBI and PTSD was not identified. CONCLUSIONS The findings demonstrate that neuropsychological performance alone is more robust in differentiating Active-Duty Service Members with mTBI and PTSD, whereas global neuroimaging measures do not reliably differentiate between these groups.
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Affiliation(s)
- N.L. de Souza
- School of Graduate Studies, Biomedical Sciences, Rutgers Biomedical and Health Sciences, Newark, NJ, USA
| | - C. Esopenko
- Department of Rehabilitation & Movement Sciences, School of Health Professions, Rutgers Biomedical and Health Sciences, Newark, NJ, USA
| | - Y. Jia
- Department of Interdisciplinary Studies, School of Health Professions, Rutgers Biomedical and Health Sciences, Newark, NJ, USA
| | - J. S. Parrott
- Department of Interdisciplinary Studies, School of Health Professions, Rutgers Biomedical and Health Sciences, Newark, NJ, USA
| | - T.L. Merkley
- Department of Psychology & Neuroscience Center, Brigham Young University, Provo, UT, USA
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - E.L. Dennis
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT
| | - F.G. Hillary
- Department of Psychology, Pennsylvania State University, University Park, PA 16802, United States
- Social Life and Engineering Sciences Imaging Center, University Park, PA 16802, United States
| | - C. Velez
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - D.B. Cooper
- San Antonio VA Polytrauma Rehabilitation Center, San Antonio, TX
- Departments of Rehabilitation Medicine and Psychiatry, UT Health San Antonio, TX
| | - J. Kennedy
- General Dynamics Information Technology (GDIT) contractor for the Traumatic Brain Injury Center of Excellence (TBICoE), Neurology Service, Department of Medicine, Brooke Army Medical Center, Joint Base San Antonio, Fort Sam Houston, TX, USA
| | - J. Lewis
- Neurology Clinic, Wright Patterson Air Force Base, Wright Patterson AFB, Ohio
| | - G. York
- Alaska Radiology Associates, Anchorage, AK
| | - D.S. Menefee
- Michael E. DeBakey VA Medical Center, Houston, TX, USA
- The Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX USA
| | - S.R. McCauley
- Department of Neurology, Baylor College of Medicine, Houston, TX USA
- H. Ben Taub Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, TX USA
- Department of Pediatrics, Baylor College of Medicine, Houston, TX USA
| | - A. O. Bowles
- Brain Injury Rehabilitation Service, Department of Rehabilitation Medicine, Brooke Army Medical Center, Joint Base San Antonio, Fort Sam Houston, TX, US
| | - E.A. Wilde
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT
- H. Ben Taub Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, TX USA
| | - D. F. Tate
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT
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23
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Ma Y, Liu Q, Shan L, Zhang X, Jia Y, Gong Q, Gu Y. Inhibition and enhancement of the spontaneous emission in spherical cavities surrounded by zero-index-materials. Phys Chem Chem Phys 2023. [PMID: 37313685 DOI: 10.1039/d3cp01067h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
There exist resonance degeneracy and nesting in the spherical dielectric cavity embedded in an infinite zero-index-material (ZIM). However, its spontaneous emission (SE) has been scarcely studied. Here, we investigate the inhibition and enhancement of SE in spherical dielectric cavities surrounded by ZIMs at the nanoscale. In the cavities embedded in ε-near-zero materials, by adjusting the polarization of the emitter, the SE of the emitter can be controlled from inhibition to enhancement, ranging from 10-2 to dozens. For the cavities embedded in μ-near-zero or ε-μ-near-zero materials, the enhancement of SE is also achieved in a large range of cavities. These findings provide more application possibilities in single-photon sources, deformable optical devices with ZIMs, etc.
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Affiliation(s)
- Yun Ma
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China.
| | - Qi Liu
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China.
- Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter &; Beijing Academy of Quantum Information Sciences, Peking University, Beijing 100871, China
| | - Lingxiao Shan
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China.
| | - Xinchen Zhang
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China.
| | - Yali Jia
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China.
| | - Qihuang Gong
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China.
- Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter &; Beijing Academy of Quantum Information Sciences, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong 226010, China
- Hefei National Laboratory, Hefei 230088, China
| | - Ying Gu
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China.
- Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter &; Beijing Academy of Quantum Information Sciences, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong 226010, China
- Hefei National Laboratory, Hefei 230088, China
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24
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Zhang Y, Wang Y, Yuan S, Tang L, Zhang W, Chen Q, Chen S, Yu Y, Jia Y. [Prediction of potential suitable habitats of Haemphysalis concinna in Heilongjiang Province based on the maximum entropy model]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:263-270. [PMID: 37455097 DOI: 10.16250/j.32.1374.2022286] [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] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
OBJECTIVE To predict the potential suitable habitat of Haemaphysalis concinna in Heilongjiang Province under different climatic scenarios. METHODS The geographic locations of ticks in Heilongjiang Province from 1980 to 2022 were captured from literature review and field ticks monitoring data from Harbin Center for Disease Control and Prevention in Heilongjiang Province, and the tick distribution sites with spatial correlations were removed using the software ArcGIS 10.2. The environment data under historical climatic scenarios from 1970 to 2000 and the climatic shared socioeconomic pathways (SSP) 126 scenario model from 2021 to 2040 and from 2041 to 2060 were downloaded from the WorldClim website, and the elevation (1 km, 2010), population (1 km grid population dataset of China, 2010) and annual vegetation index (1 km, 2010) data were downloaded from the Resource and Environmental Science and Data Center, Institute of Geographical Sciences and Natural Resources, Chinese Academy of Sciences. The contribution of environmental factors to H. concinna distribution was evaluated and environmental variables were screened using the software MaxEnt 3.4.1 and R package 4.1.0, and the areas of suitable habitats of H. concinna and changes in center of gravity were analyzed using the maximum entropy model in Heilongjiang Province under different climatic scenarios. In addition, the accuracy of the maximum entropy model for prediction of H. concinna distribution was assessed using the area under curve (AUC) of the receiver operating characteristic curve. RESULTS A total of 79 H. concinna distribution sites and 24 environmental variables were collected, and 70 H. concinna distribution sites and 9 environmental factors that contributed to distribution of the potential suitable habitats of H. concinna in Heilongjiang Province were screened. The three most significant contributing factors included precipitation seasonality, annual precipitation, and mean temperature of the driest quarter, with cumulative contributions of 60.7%. The total area of suitable habitats of H. concinna was 29.05 × 104 km2 in Heilongjiang Province under historical climatic scenarios, with the center of gravity of suitable habitats located at (47.31° N, 129.16° E), while the total area of suitable habitats of H. concinna reduced by 0.97 × 104 km2 in Heilongjiang Province under the climatic SSP126 scenario from 2041 to 2060, with the center of gravity shifting to (47.70° N, 129.28° E). CONCLUSIONS The distribution of suitable habitats of H. concinna strongly correlates with temperature and humidity in Heilongjiang Province. The total area of potential suitable habitats of H. concinna may appear a tendency towards a decline with climatic changes in Heilongjiang Province, and high-, medium- and low-suitable habitats may shift.
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Affiliation(s)
- Y Zhang
- Institute of Vector and Parasitic Diseases, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang 150086, China
| | - Y Wang
- Department of Infectious Disease Control and Emergency, Songbei District Center for Disease Control and Prevention, Harbin Center, Heilongjiang Province, China
| | - S Yuan
- Institute of Prevention and Control of Endemic Diseases and Vector Organisms, Heilongjiang Provincial Center for Disease Control and Prevention, China
| | - L Tang
- Institute of Prevention and Control of Endemic Diseases and Vector Organisms, Heilongjiang Provincial Center for Disease Control and Prevention, China
| | - W Zhang
- Institute of Vector and Parasitic Diseases, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang 150086, China
| | - Q Chen
- Institute of Vector and Parasitic Diseases, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang 150086, China
| | - S Chen
- Institute of Vector and Parasitic Diseases, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang 150086, China
| | - Y Yu
- Institute of Vector and Parasitic Diseases, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang 150086, China
| | - Y Jia
- Department of Epidemiology and Health Statistics, School of Public Health, Qiqihar Medical University, Qiqihar, Heilongjiang 161000, China
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25
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Wang C, Zhao B, Zhai J, Wang A, Cao N, Liao T, Su R, He L, Li Y, Pei X, Jia Y, Yue W. Clinical-grade human umbilical cord-derived mesenchymal stem cells improved skeletal muscle dysfunction in age-associated sarcopenia mice. Cell Death Dis 2023; 14:321. [PMID: 37173309 PMCID: PMC10182022 DOI: 10.1038/s41419-023-05843-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
With the expansion of the aging population, age-associated sarcopenia (AAS) has become a severe clinical disease of the elderly and a key challenge for healthy aging. Regrettably, no approved therapies currently exist for treating AAS. In this study, clinical-grade human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) were administrated to two classic mouse models (SAMP8 mice and D-galactose-induced aging mice), and their effects on skeletal muscle mass and function were investigated by behavioral tests, immunostaining, and western blotting. Core data results showed that hUC-MSCs significantly restored skeletal muscle strength and performance in both mouse models via mechanisms including raising the expression of crucial extracellular matrix proteins, activating satellite cells, enhancing autophagy, and impeding cellular aging. For the first time, the study comprehensively evaluates and demonstrates the preclinical efficacy of clinical-grade hUC-MSCs for AAS in two mouse models, which not only provides a novel model for AAS, but also highlights a promising strategy to improve and treat AAS and other age-associated muscle diseases. This study comprehensively evaluates the preclinical efficacy of clinical-grade hUC-MSCs in treating age-associated sarcopenia (AAS), and demonstrates that hUC-MSCs restore skeletal muscle strength and performance in two AAS mouse models via raising the expression of extracellular matrix proteins, activating satellite cells, enhancing autophagy, and impeding cellular aging, which highlights a promising strategy for AAS and other age-associated muscle diseases.
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Affiliation(s)
- Chao Wang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Bichun Zhao
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Jinglei Zhai
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Ailin Wang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Ning Cao
- 920th Hospital of Joint Logistics Support Force, Kunming, 650032, China
| | - Tuling Liao
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Ruyu Su
- South China Institute of Biomedicine, Guangzhou, 510005, China
| | - Lijuan He
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China
- South China Institute of Biomedicine, Guangzhou, 510005, China
| | - Yanhua Li
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China
- South China Institute of Biomedicine, Guangzhou, 510005, China
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China.
- South China Institute of Biomedicine, Guangzhou, 510005, China.
| | - Yali Jia
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China.
- South China Institute of Biomedicine, Guangzhou, 510005, China.
| | - Wen Yue
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, 100850, China.
- South China Institute of Biomedicine, Guangzhou, 510005, China.
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26
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Tsuboi K, You QS, Guo Y, Wang J, Flaxel CJ, Bailey ST, Huang D, Jia Y, Hwang TS. Automated Macular Fluid Volume As a Treatment Indicator for Diabetic Macular Edema. J Vitreoretin Dis 2023; 7:226-231. [PMID: 37188216 PMCID: PMC10170624 DOI: 10.1177/24741264231164846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Introduction: To assess the diagnostic accuracy of automatically quantified macular fluid volume (MFV) for treatment-required diabetic macular edema (DME). Methods: This retrospective cross-sectional study included eyes with DME. The commercial software on optical coherence tomography (OCT) produced the central subfield thickness (CST), and a custom deep-learning algorithm automatically segmented the fluid cysts and quantified the MFV from the volumetric scans of an OCT angiography system. Retina specialists treated patients per standard of care based on clinical and OCT findings without access to the MFV. The main outcome measures were the area under the receiver operating characteristic curve (AUROC), sensitivity, and specificity of the CST, MFV, and visual acuity (VA) for treatment indication. Results: Of 139 eyes, 39 (28%) were treated for DME during the study period and 101 (72%) were previously treated. The algorithm detected fluid in all eyes; however, only 54 eyes (39%) met the DRCR.net criteria for center-involved ME. The AUROC of MFV predicting a treatment decision of 0.81 was greater than that of CST (0.67) (P = .0048). Untreated eyes that met the optimal threshold for treatment-required DME based on MFV (>0.031 mm3) had better VA than treated eyes (P = .0053). A multivariate logistic regression model showed that MFV (P = .0008) and VA (P = .0061) were significantly associated with a treatment decision, but CST was not. Conclusions: MFV had a higher correlation with the need for treatment for DME than CST and may be especially useful for ongoing management of DME.
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Affiliation(s)
- Kotaro Tsuboi
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Qi Sheng You
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
- Kresge Eye Institute, Detroit Medical Center, Wayne State University, Detroit, MI, USA
| | - Yukun Guo
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Jie Wang
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
| | - Christina J. Flaxel
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Steven T. Bailey
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - David Huang
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
| | - Thomas S. Hwang
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
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27
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Wang J, Hormel TT, Bailey ST, Hwang TS, Huang D, Jia Y. Signal attenuation-compensated projection-resolved OCT angiography. Biomed Opt Express 2023; 14:2040-2054. [PMID: 37206138 PMCID: PMC10191650 DOI: 10.1364/boe.483835] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 05/21/2023]
Abstract
Projection artifacts are a significant limitation of optical coherence tomographic angiography (OCTA). Existing techniques to suppress these artifacts are sensitive to image quality, becoming less reliable on low-quality images. In this study, we propose a novel signal attenuation-compensated projection-resolved OCTA (sacPR-OCTA) algorithm. In addition to removing projection artifacts, our method compensates for shadows beneath large vessels. The proposed sacPR-OCTA algorithm improves vascular continuity, reduces the similarity of vascular patterns in different plexuses, and removes more residual artifacts compared to existing methods. In addition, the sacPR-OCTA algorithm better preserves flow signal in choroidal neovascular lesions and shadow-affected areas. Because sacPR-OCTA processes the data along normalized A-lines, it provides a general solution for removing projection artifacts agnostic to the platform.
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Affiliation(s)
- Jie Wang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
| | - Tristan T. Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Steven T. Bailey
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Thomas S. Hwang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
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28
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Wang J, Hormel TT, Tsuboi K, Wang X, Ding X, Peng X, Huang D, Bailey ST, Jia Y. Deep Learning for Diagnosing and Segmenting Choroidal Neovascularization in OCT Angiography in a Large Real-World Data Set. Transl Vis Sci Technol 2023; 12:15. [PMID: 37058103 PMCID: PMC10117225 DOI: 10.1167/tvst.12.4.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023] Open
Abstract
Purpose To diagnose and segment choroidal neovascularization (CNV) in a real-world multicenter clinical OCT angiography (OCTA) data set using deep learning. Methods A total of 105,66 OCTA scans from 3135 eyes, including 4701 with CNV and 5865 without, were collected in five eye clinics. Both 3 × 3-mm and 6 × 6-mm scans of the central and temporal macula were included. Scans with CNV were collected from multiple diseases, and scans without CNV were collected from both healthy controls and those with multiple diseases. No scans were removed during training or testing due to poor quality. The trained hybrid multitask convolutional neural network outputs a CNV diagnosis and membrane segmentation, respectively. Results The model demonstrated a highly accurate CNV diagnosis (area under receiver operating characteristic curve = 0.97), achieving a sensitivity of 95% at 95% specificity. The model also correctly segmented CNV lesions (F1 score = 0.78 ± 0.19). Additionally, model performance was comparable on both high-definition 3 × 3-mm scans and low-definition 6 × 6-mm scans. The model did not suffer large performance variations under different diseases. We also show that a subclinical lesion in a patient with neovascular age-related macular degeneration can be monitored over a multiyear time frame using our approach. Conclusions The proposed method can accurately diagnose and segment CNV in a large real-world clinical data set. Translational Relevance The algorithm could enable automated CNV screening and quantification in the clinic, which will help improve CNV diagnosis and treatment evaluation.
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Affiliation(s)
- Jie Wang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
| | - Tristan T Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Kotaro Tsuboi
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Department of Ophthalmology, Aichi Medical University, Nagakute, Japan
| | | | - Xiaoyan Ding
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyan Peng
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Lab, Beijing, China
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
| | - Steven T Bailey
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
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29
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Pi S, Wang B, Gao M, Cepurna W, Lozano DC, Morrison JC, Jia Y. Longitudinal Observation of Retinal Response to Optic Nerve Transection in Rats Using Visible Light Optical Coherence Tomography. Invest Ophthalmol Vis Sci 2023; 64:17. [PMID: 37057973 PMCID: PMC10117226 DOI: 10.1167/iovs.64.4.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023] Open
Abstract
Purpose To characterize rat retinal responses after optic nerve transection (ONT) by visible-light optical coherence tomography (vis-OCT). Methods Unilateral ONT was performed in Brown Norway rats (n = 8). In vivo, vis-OCT retinal imaging was performed on the experimental eyes before ONT (baseline), and two days, one week, two weeks, and four weeks (endpoint) after ONT, as well as on fellow eyes at the endpoint. The system was operated at a 70 kHz A-line sampling rate with both raster scans (512 × 2 × 512 A-lines), and circular scans (2048 × 100 A-lines) acquired around the optic disc. Retinal layers were segmented to calculate layer thicknesses and project en face images for visualization and quantifications. Vessel densities and oxygen saturation were used to evaluate the morphologic and functional impact on the retinal vasculature. Results After ONT, retinal nerve fiber bundles demonstrated significant degeneration, starting at two weeks, with a reduction of thicknesses quantified on the nerve fiber layer, ganglion cell complex, and total retina. Along with that, the activation of macrophage-like cells in the vitreoretinal interface was also observed. Vessel densities for all three retinal plexuses were unaffected over the period of observation. However, oxygen saturation in retinal arteries and veins was significantly reduced at four weeks after ONT. Conclusions Vis-OCT can provide high-definition, in vivo characterization of retinal responses to ONT in rats. Despite a significant reduction in retinal layer thickness, this was not accompanied by alterations in vascular density. Despite this, oximetry indicates reduced retinal oxygen saturation, suggesting that altered vascular physiology is not reflected in the anatomic appearance of retinal blood vessel density alone.
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Affiliation(s)
- Shaohua Pi
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Bingjie Wang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Min Gao
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - William Cepurna
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Diana C Lozano
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - John C Morrison
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
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Pei H, Li H, Xu L, Zhang B, Zhang H, Jia Y, Liang L, Xie X, Fan Z, Yang Z, Wang X, Song F, He L, Yue W, Pei X. Preferential Hematopoietic Differentiation in Induced Pluripotent Stem Cells Derived From Human Umbilical Cord Arterial Endothelial Cells. Arterioscler Thromb Vasc Biol 2023; 43:697-712. [PMID: 36951064 DOI: 10.1161/atvbaha.122.318723] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
BACKGROUND The major obstacle for applications of human induced pluripotent stem cells (hiPSCs) is efficient and controlled lineage-specific differentiation. Hence, a deeper understanding of the initial populations of hiPSCs is required to instruct proficient lineage commitment. METHODS hiPSCs were generated from somatic cells by transduction of 4 human transcription factors (OCT4, SOX2, KLF4, and C-MYC) using Sendai virus vectors. Genome-wide DNA methylation analysis and transcriptional analysis were performed to evaluate the pluripotent capacity and somatic memory state of hiPSCs. Flow cytometric analysis and colony assays were performed to assess the hematopoietic differentiation capacity of hiPSCs. RESULTS Here, we reveal human umbilical arterial endothelial cell-derived induced pluripotent stem cells (HuA-iPSCs) exhibit indistinguishable pluripotency in comparison with human embryonic stem cells and hiPSCs derived from other tissues of origin (umbilical vein endothelial cells, cord blood, foreskin fibroblasts, and fetal skin fibroblasts). However, HuA-iPSCs retain a transcriptional memory typical of the parental human umbilical cord arterial endothelial cells, together with a strikingly similar DNA methylation signature to umbilical cord blood-derived induced pluripotent stem cells that distinguishes them from other human pluripotent stem cells. Ultimately, HuA-iPSCs are most efficient in targeted differentiation toward hematopoietic lineage among all human pluripotent stem cells based on the functional and quantitative evaluation of both flow cytometric analysis and colony assays. Application of the Rho-kinase activator significantly reduces the effects of preferential hematopoietic differentiation in HuA-iPSCs, reflected in CD34+ cell percentage of day 7, hematopoietic/endothelial-associated gene expression, and even colony-forming unit numbers. CONCLUSIONS Collectively, our data suggest that somatic cell memory may predispose HuA-iPSCs to differentiate more amenably into hematopoietic fate, bringing us closer to generating hematopoietic cell types in vitro from nonhematopoietic tissue for therapeutic applications.
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Affiliation(s)
- Haiyun Pei
- Experimental Hematology and Biochemistry Laboratory, Beijing, China (H.P.)
- Now with Oxford Suzhou Centre for Advanced Research, OSCAR, China (H.P.)
- South China Research Center for Stem Cell and Regenerative Medicine, SCIB, Guangzhou (H.P., B.Z., Y.J., X.X., L.H., W.Y., X.P.)
| | - Huilin Li
- Institute of Health Service and Transfusion Medicine, Beijing, China (H.L., Z.Y., L.H.)
| | - Lei Xu
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
| | - Bowen Zhang
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
- South China Research Center for Stem Cell and Regenerative Medicine, SCIB, Guangzhou (H.P., B.Z., Y.J., X.X., L.H., W.Y., X.P.)
| | - Heng Zhang
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (H.Z.)
| | - Yali Jia
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
- South China Research Center for Stem Cell and Regenerative Medicine, SCIB, Guangzhou (H.P., B.Z., Y.J., X.X., L.H., W.Y., X.P.)
| | - Liqing Liang
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
| | - Xiaoyan Xie
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
- South China Research Center for Stem Cell and Regenerative Medicine, SCIB, Guangzhou (H.P., B.Z., Y.J., X.X., L.H., W.Y., X.P.)
| | - Zeng Fan
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
| | - Zhou Yang
- Institute of Health Service and Transfusion Medicine, Beijing, China (H.L., Z.Y., L.H.)
| | - Xiaoling Wang
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
| | - Feiling Song
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
| | - Lijuan He
- Institute of Health Service and Transfusion Medicine, Beijing, China (H.L., Z.Y., L.H.)
- South China Research Center for Stem Cell and Regenerative Medicine, SCIB, Guangzhou (H.P., B.Z., Y.J., X.X., L.H., W.Y., X.P.)
| | - Wen Yue
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
- South China Research Center for Stem Cell and Regenerative Medicine, SCIB, Guangzhou (H.P., B.Z., Y.J., X.X., L.H., W.Y., X.P.)
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine Laboratory, Beijing Institute of Radiation Medicine, China (L.X., B.Z., Y.J., L.L., X.X., Z.F., X.W., F.S., W.Y., X.P.)
- South China Research Center for Stem Cell and Regenerative Medicine, SCIB, Guangzhou (H.P., B.Z., Y.J., X.X., L.H., W.Y., X.P.)
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He D, Pan C, Zhao Y, Wei W, Qin X, Cai Q, Shi S, Chu X, Zhang N, Jia Y, Wen Y, Cheng B, Liu H, Feng R, Zhang F, Xu P. Exome-wide screening identifies novel rare risk variants for bone mineral density. Osteoporos Int 2023; 34:965-975. [PMID: 36849660 DOI: 10.1007/s00198-023-06710-0] [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: 08/28/2022] [Accepted: 02/14/2023] [Indexed: 03/01/2023]
Abstract
UNLABELLED Bone mineral density (BMD) is an independent risk factor of osteoporosis-related fractures. We performed gene-based burden tests to assess the association between rare variants and BMD, and identified several BMD candidate genes. PURPOSE BMD is highly heritable and a major predictor of osteoporotic fractures, but its genetic basis remains unclear. We aimed to identify rare risk variants contributing to BMD. METHODS Utilizing the newly released UK Biobank 200,643 exome dataset, we conducted a gene-based exome-wide association study in males and females, respectively. First, 100,639 males and 117,338 females with BMD values were included in the polygenic risk scores (PRS) analysis. Among individuals with lower 30% PRS, cases were individuals with top 10% BMD, and individuals with bottom 10% BMD were the controls. Considering the effects of vitamin D (VD), individuals with the highest 30% VD concentration were selected for VD-BMD analysis. After quality control, 741 males and 697 females were included in the BMD analysis, and 717 males and 708 females were included in the VD-BMD analysis. The variants were annotated by ANNOVAR software, then BMD and VD-BMD qualified variants were imported into the SKAT R-package to perform gene-based burden tests, respectively. RESULTS The gene-based burden test of the exonic variants identified genome-wide candidate associations in ANKRD18A (P = 1.60 × 10-5, PBonferroni adjust = 2.11 × 10-3), C22orf31 (P = 3.49 × 10-4, PBonferroni adjust = 3.17 × 10-2), and SPATC1L (P = 1.09 × 10-5, PBonferroni adjust = 8.80 × 10-3). For VD-BMD analysis, three genes were associated with BMD, such as NIPAL1 (P = 1.06 × 10-3, PBonferroni adjust = 3.91 × 10-2). CONCLUSIONS Our study suggested that rare variants contribute to BMD, providing new sights for broadening the genetic structure of BMD.
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Affiliation(s)
- D He
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - C Pan
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - Y Zhao
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - W Wei
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - X Qin
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - Q Cai
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - S Shi
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - X Chu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - N Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - Y Jia
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - Y Wen
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - B Cheng
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - H Liu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - R Feng
- Department of Joint Surgery, HongHui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - F Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, China.
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Xi'an Jiaotong University, Xi'an, China.
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China.
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China.
| | - P Xu
- Department of Joint Surgery, HongHui Hospital, Xi'an Jiaotong University, Xi'an, China.
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Wang HB, Jia Y, Zhang CB, Zhang L, Li YN, Ding J, Wu X, Zhang Z, Wang JH, Wang Y, Yan FX, Yuan S, Sessler DI. A randomised controlled trial of dexmedetomidine for delirium in adults undergoing heart valve surgery. Anaesthesia 2023; 78:571-576. [PMID: 36794600 DOI: 10.1111/anae.15983] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2023] [Indexed: 02/17/2023]
Abstract
Dexmedetomidine might reduce delirium after cardiac surgery. We allocated 326 participants to an infusion of dexmedetomidine at a rate of 0.6 μg kg-1 for 10 min and then at 0.4 μg.kg-1 .h-1 until the end of surgery; 326 control participants received comparable volumes of saline. We detected delirium in 98/652 (15%) participants during the first seven postoperative days: 47/326 after dexmedetomidine vs. 51/326 after placebo, p = 0.62, adjusted relative risk (95%CI) 0.86 (0.56-1.33), p = 0.51. Postoperative renal impairment (Kidney Disease Improving Global Outcomes stages 1, 2 and 3) was detected in 46, 9 and 2 participants after dexmedetomidine and 25, 7 and 4 control participants, p = 0.040. Intra-operative dexmedetomidine infusion did not reduce the incidence of delirium after cardiac valve surgery but might impair renal function.
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Affiliation(s)
- H-B Wang
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Jia
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - C-B Zhang
- Department of Anaesthesiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen (Sun Yat-sen Cardiovascular Hospital, Shenzhen), Shenzhen, China
| | - L Zhang
- Department of Anaesthesiology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Y-N Li
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Ding
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Wu
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Zhang
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J-H Wang
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Wang
- Department of Medical Research & Biometrics Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - F-X Yan
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Yuan
- Department of Anaesthesiology, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - D I Sessler
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA
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Hou S, Wang X, Yu Y, Ji H, Dong X, Li J, Li H, He H, Li Z, Yang Z, Chen W, Yao G, Zhang Y, Zhang J, Bi M, Niu S, Zhao G, Zhu R, Liu G, Jia Y, Gao Y. Invasive fungal infection is associated with antibiotic exposure in preterm infants: a multi-centre prospective case-control study. J Hosp Infect 2023; 134:43-49. [PMID: 36646139 DOI: 10.1016/j.jhin.2023.01.002] [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: 11/07/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/15/2023]
Abstract
BACKGROUND Previous antibiotic exposure is an important risk factor for invasive fungal infection (IFI). Antibiotic overexposure is common in lower-income countries; however, multi-centre studies concerning IFI in relation to antibiotic exposure are scarce. AIM This prospective, multi-centre matched case-control study explored the correlation of IFI and antibiotic exposure in very preterm infants or very-low-birthweight infants admitted to 23 tertiary hospitals in China between 2018 and 2021. METHODS Using a 1:2 matched design for gestational age, birth weight and early-onset sepsis (yes/no), the risk factors between infants diagnosed with IFI and infection-free controls were compared. The antibiotic use rate (AUR) was calculated using calendar days of antibiotic therapy in the 4 weeks preceding IFI onset divided by onset day of IFI. FINDINGS In total, 6368 infants were included in the study, of which 90 (1.4%) were diagnosed with IFI. Median AUR, length of antibiotic therapy (LOT) and days of antibiotic therapy (DOT) within the 4 weeks preceding IFI onset were 0.90, 18 days and 30 days, respectively. Multi-variate analysis showed that a 10% increase in AUR, each additional day of DOT and LOT, and each additional day of third-generation cephalosporins and carbapenems were notably associated with IFI. CONCLUSION Prolonged antibiotic therapy is common before the onset of IFI, and is an important risk factor, especially the use of third-generation cephalosporins and carbapenems. Antibiotic stewardship should be urgently developed and promoted for preterm infants in order to reduce IFI in lower-income countries such as China.
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Affiliation(s)
- S Hou
- Department of Paediatrics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - X Wang
- Department of Paediatrics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Y Yu
- Department of Neonatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Department of Neonatology, Shandong Provincial Hospital, Shandong University, Jinan, China.
| | - H Ji
- Department of Neonatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Department of Neonatology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - X Dong
- Department of Neonatology, Shandong Provincial Maternal and Child Health Hospital, Jinan, Shandong, China
| | - J Li
- Department of Neonatology, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - H Li
- Department of Neonatology, Hebei PetroChina Central Hospital, Langfang, China
| | - H He
- Department of Neonatology, Baogang Third Hospital of Hongci Group, Baotou, Inner Mongolia, China
| | - Z Li
- Department of Neonatology, W.F. Maternal and Child Health Hospital, Weifang, China
| | - Z Yang
- Department of Neonatology, Taian Maternal and Child Health Care Hospital, Taian, Shandong, China
| | - W Chen
- Department of Neonatology, People's Hospital of Rizhao, Rizhao, China
| | - G Yao
- Department of Neonatology, The Affiliated Taian City Central Hospital of Qingdao University, Taian, Shandong, China
| | - Y Zhang
- Department of Neonatology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - J Zhang
- Department of Neonatology, Qilu Hospital of Shandong University, Jinan, China
| | - M Bi
- Department of Neonatology, Jinan Central Hospital, Jinan, China
| | - S Niu
- Department of Neonatology, Zibo Maternal and Child Health Hospital, Zibo, China
| | - G Zhao
- Department of Neonatology, Binzhou Medical University Hospital, Binzhou, China
| | - R Zhu
- Department of Neonatology, Zibo Municipal Hospital, Zibo, China
| | - G Liu
- Department of Neonatology, Yidu Central Hospital of Weifang, Weifang, China
| | - Y Jia
- Department of Neonatology, Shanxi Province Shangluo Central Hospital, Shanluo, China
| | - Y Gao
- Department of Neonatology, Qilu Hospital of Shandong University Dezhou Hospital, Shanluo, China
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Ma D, Pasquale LR, Girard MJA, Leung CKS, Jia Y, Sarunic MV, Sappington RM, Chan KC. Reverse translation of artificial intelligence in glaucoma: Connecting basic science with clinical applications. Front Ophthalmol (Lausanne) 2023; 2:1057896. [PMID: 36866233 PMCID: PMC9976697 DOI: 10.3389/fopht.2022.1057896] [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] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Artificial intelligence (AI) has been approved for biomedical research in diverse areas from bedside clinical studies to benchtop basic scientific research. For ophthalmic research, in particular glaucoma, AI applications are rapidly growing for potential clinical translation given the vast data available and the introduction of federated learning. Conversely, AI for basic science remains limited despite its useful power in providing mechanistic insight. In this perspective, we discuss recent progress, opportunities, and challenges in the application of AI in glaucoma for scientific discoveries. Specifically, we focus on the research paradigm of reverse translation, in which clinical data are first used for patient-centered hypothesis generation followed by transitioning into basic science studies for hypothesis validation. We elaborate on several distinctive areas of research opportunities for reverse translation of AI in glaucoma including disease risk and progression prediction, pathology characterization, and sub-phenotype identification. We conclude with current challenges and future opportunities for AI research in basic science for glaucoma such as inter-species diversity, AI model generalizability and explainability, as well as AI applications using advanced ocular imaging and genomic data.
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Affiliation(s)
- Da Ma
- School of Medicine, Wake Forest University, Winston-Salem, NC, United States
- Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, NC, United States
- School of Engineering Science, Simon Fraser University, Burnaby, BC, Canada
| | - Louis R. Pasquale
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Michaël J. A. Girard
- Ophthalmic Engineering & Innovation Laboratory (OEIL), Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
- Institute for Molecular and Clinical Ophthalmology, Basel, Switzerland
| | | | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, United States
| | - Marinko V. Sarunic
- School of Engineering Science, Simon Fraser University, Burnaby, BC, Canada
- Institute of Ophthalmology, University College London, London, United Kingdom
| | - Rebecca M. Sappington
- School of Medicine, Wake Forest University, Winston-Salem, NC, United States
- Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, NC, United States
| | - Kevin C. Chan
- Departments of Ophthalmology and Radiology, Neuroscience Institute, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
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Xiong H, You QS, Guo Y, Wang J, Wang B, Gao L, Flaxel CJ, Bailey ST, Hwang TS, Jia Y. Deep learning-based signal-independent assessment of macular avascular area on 6×6 mm optical coherence tomography angiogram in diabetic retinopathy: a comparison to instrument-embedded software. Br J Ophthalmol 2023; 107:84-89. [PMID: 34518161 PMCID: PMC8918061 DOI: 10.1136/bjophthalmol-2020-318646] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 07/24/2021] [Indexed: 01/03/2023]
Abstract
SYNOPSIS A deep-learning-based macular extrafoveal avascular area (EAA) on a 6×6 mm optical coherence tomography (OCT) angiogram is less dependent on the signal strength and shadow artefacts, providing better diagnostic accuracy for diabetic retinopathy (DR) severity than the commercial software measured extrafoveal vessel density (EVD). AIMS To compare a deep-learning-based EAA to commercial output EVD in the diagnostic accuracy of determining DR severity levels from 6×6 mm OCT angiography (OCTA) scans. METHODS The 6×6 mm macular OCTA scans were acquired on one eye of each participant with a spectral-domain OCTA system. After excluding the central 1 mm diameter circle, the EAA on superficial vascular complex was measured with a deep-learning-based algorithm, and the EVD was obtained with commercial software. RESULTS The study included 34 healthy controls and 118 diabetic patients. EAA and EVD were highly correlated with DR severity (ρ=0.812 and -0.577, respectively, both p<0.001) and visual acuity (r=-0.357 and 0.420, respectively, both p<0.001). EAA had a significantly (p<0.001) higher correlation with DR severity than EVD. With the specificity at 95%, the sensitivities of EAA for differentiating diabetes mellitus (DM), DR and severe DR from control were 80.5%, 92.0% and 100.0%, respectively, significantly higher than those of EVD 11.9% (p=0.001), 13.6% (p<0.001) and 15.8% (p<0.001), respectively. EVD was significantly correlated with signal strength index (SSI) (r=0.607, p<0.001) and shadow area (r=-0.530, p<0.001), but EAA was not (r=-0.044, p=0.805 and r=-0.046, p=0.796, respectively). Adjustment of EVD with SSI and shadow area lowered sensitivities for detection of DM, DR and severe DR. CONCLUSION Macular EAA on 6×6 mm OCTA measured with a deep learning-based algorithm is less dependent on the signal strength and shadow artefacts, and provides better diagnostic accuracy for DR severity than EVD measured with the instrument-embedded software.
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Affiliation(s)
- Honglian Xiong
- School of Physics and Optoelectronic Engineering, Foshan University, Foshan, Guangdong 528000, China
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Qi Sheng You
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Yukun Guo
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Jie Wang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Bingjie Wang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Liqin Gao
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Christina J Flaxel
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Steven T Bailey
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Thomas S Hwang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
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Zhang J, Boccara C, Grieve K, Jia Y, Xiao P. Editorial: The development and clinical application of innovative optical ophthalmic imaging techniques. Front Med (Lausanne) 2022; 9:1058069. [DOI: 10.3389/fmed.2022.1058069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
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Zang P, Hormel TT, Hwang TS, Bailey ST, Huang D, Jia Y. Deep-Learning-Aided Diagnosis of Diabetic Retinopathy, Age-Related Macular Degeneration, and Glaucoma Based on Structural and Angiographic OCT. Ophthalmol Sci 2022; 3:100245. [PMID: 36579336 PMCID: PMC9791595 DOI: 10.1016/j.xops.2022.100245] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/21/2022] [Accepted: 10/28/2022] [Indexed: 11/11/2022]
Abstract
Purpose Timely diagnosis of eye diseases is paramount to obtaining the best treatment outcomes. OCT and OCT angiography (OCTA) have several advantages that lend themselves to early detection of ocular pathology; furthermore, the techniques produce large, feature-rich data volumes. However, the full clinical potential of both OCT and OCTA is stymied when complex data acquired using the techniques must be manually processed. Here, we propose an automated diagnostic framework based on structural OCT and OCTA data volumes that could substantially support the clinical application of these technologies. Design Cross sectional study. Participants Five hundred twenty-six OCT and OCTA volumes were scanned from the eyes of 91 healthy participants, 161 patients with diabetic retinopathy (DR), 95 patients with age-related macular degeneration (AMD), and 108 patients with glaucoma. Methods The diagnosis framework was constructed based on semisequential 3-dimensional (3D) convolutional neural networks. The trained framework classifies combined structural OCT and OCTA scans as normal, DR, AMD, or glaucoma. Fivefold cross-validation was performed, with 60% of the data reserved for training, 20% for validation, and 20% for testing. The training, validation, and test data sets were independent, with no shared patients. For scans diagnosed as DR, AMD, or glaucoma, 3D class activation maps were generated to highlight subregions that were considered important by the framework for automated diagnosis. Main Outcome Measures The area under the curve (AUC) of the receiver operating characteristic curve and quadratic-weighted kappa were used to quantify the diagnostic performance of the framework. Results For the diagnosis of DR, the framework achieved an AUC of 0.95 ± 0.01. For the diagnosis of AMD, the framework achieved an AUC of 0.98 ± 0.01. For the diagnosis of glaucoma, the framework achieved an AUC of 0.91 ± 0.02. Conclusions Deep learning frameworks can provide reliable, sensitive, interpretable, and fully automated diagnosis of eye diseases. Financial Disclosures Proprietary or commercial disclosure may be found after the references.
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Affiliation(s)
- Pengxiao Zang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon,Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Tristan T. Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Thomas S. Hwang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Steven T. Bailey
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon,Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon,Correspondence: Yali Jia, PhD, Casey Eye Institute & Department of Biomedical Engineering, Oregon Health & Science University, 515 SW Campus Dr., CEI 3154, Portland, OR 97239-4197.
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Nguyen TTP, Ni S, Ostmo S, Rajagopalan A, Coyner AS, Woodward M, Chiang MF, Jia Y, Huang D, Campbell JP, Jian Y. Association of Optical Coherence Tomography-Measured Fibrovascular Ridge Thickness and Clinical Disease Stage in Retinopathy of Prematurity. JAMA Ophthalmol 2022; 140:2797385. [PMID: 36227622 PMCID: PMC9562098 DOI: 10.1001/jamaophthalmol.2022.4173] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/18/2022] [Indexed: 11/30/2022]
Abstract
Importance Accurate diagnosis of retinopathy of prematurity (ROP) is essential to provide timely treatment and reduce the risk of blindness. However, the components of an ROP examination are subjective and qualitative. Objective To evaluate whether optical coherence tomography (OCT)-derived retinal thickness measurements at the vascular-avascular junction are associated with clinical diagnosis of ROP stage. Design, Setting, and Participants This cross-sectional longitudinal study compared OCT-based ridge thickness calculated from OCT B-scans by a masked examiner to the clinical diagnosis of 2 masked examiners using both traditional stage classifications and a more granular continuous scale at the neonatal intensive care unit (NICU) of Oregon Health & Science University (OHSU) Hospital. Infants who met ROP screening criteria in the OHSU NICU between June 2021 and April 2022 and had guardian consent were included. One OCT volume and en face image per patient per eye showing at least 1 to 2 clock hours of ridge were included in the final analysis. Main Outcomes and Measures Comparison of OCT-derived ridge thickness to the clinical diagnosis of ROP stage using an ordinal and continuous scale. Repeatability was assessed using 20 repeated examinations from the same visit and compared using intraclass correlation coefficient (ICC) and coefficient of variation (CV). Comparison of ridge thickness with ordinal categories was performed using generalized estimating equations and with continuous stage using Spearman correlation. Results A total of 128 separate OCT eye examinations from 50 eyes of 25 patients were analyzed. The ICC was 0.87 with a CV of 7.0%. Higher ordinal disease classification was associated with higher axial ridge thickness on OCT, with mean (SD) thickness measurements of 264.2 (11.2) μm (P < .001), 334.2 (11.4) μm (P < .001), and 495.0 (32.2) μm (P < .001) for stages 1, 2, and 3, respectively and with continuous stage labels (ρ = 0.739, P < .001). Conclusions and Relevance These results suggest that OCT-based quantification of peripheral stage in ROP may be an objective and quantitative biomarker that may be useful for clinical diagnosis and longitudinal monitoring and may have implications for disease classification in the future.
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Affiliation(s)
| | - Shuibin Ni
- Casey Eye Institute, Oregon Health & Science University, Portland
- Department of Biomedical Engineering, Oregon Health & Science University, Portland
| | - Susan Ostmo
- Casey Eye Institute, Oregon Health & Science University, Portland
| | | | - Aaron S. Coyner
- Casey Eye Institute, Oregon Health & Science University, Portland
| | - Mani Woodward
- Casey Eye Institute, Oregon Health & Science University, Portland
| | - Michael F. Chiang
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland
- Department of Biomedical Engineering, Oregon Health & Science University, Portland
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland
- Department of Biomedical Engineering, Oregon Health & Science University, Portland
| | | | - Yifan Jian
- Casey Eye Institute, Oregon Health & Science University, Portland
- Department of Biomedical Engineering, Oregon Health & Science University, Portland
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Wei X, Hormel TT, Pi S, Wang B, Morrison JC, Jia Y. Wide-field sensorless adaptive optics swept-source optical coherence tomographic angiography in rodents. Opt Lett 2022; 47:5060-5063. [PMID: 36181186 DOI: 10.1364/ol.472387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/04/2022] [Indexed: 06/16/2023]
Abstract
In this study, we present a sensorless adaptive optics swept-source optical coherence tomographic angiography (sAO-SS-OCTA) imaging system for mice. Real-time graphics processing unit (GPU)-based OCTA image acquisition and processing software were applied to guide wavefront correction using a deformable mirror based on signal strength index (SSI) from both OCT and OCTA images. High-resolution OCTA images with aberrations corrected and contrast enhanced were successfully acquired. Fifty-degree field of view high-resolution montaged OCTA images were also acquired.
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Zhao Y, Huang S, Jia Y, Duan Y, Jin L, Zhai X, Wang H, Hu B, Liu Y, Liu A, Liu W, Zheng C, Li F, Sun L, Yuan X, Dai Y, Zhang B, Jiang L, Wang X, Wang H, Zhou C, Gao Z, Zhang L, Zhang Y. CLINICOPATHOLOGIC FEATURES AND PROGNOSIS OF PEDIATRIC HIGH-GRADE B-CELL LYMPHOMA: A MULTICENTER ANALYSIS. Leuk Res 2022. [DOI: 10.1016/s0145-2126(22)00254-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Pi S, Hormel TT, Wang B, Bailey ST, Hwang TS, Huang D, Morrison JC, Jia Y. Volume-based, layer-independent, disease-agnostic detection of abnormal retinal reflectivity, nonperfusion, and neovascularization using structural and angiographic OCT. Biomed Opt Express 2022; 13:4889-4906. [PMID: 36187263 PMCID: PMC9484416 DOI: 10.1364/boe.469308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 06/16/2023]
Abstract
Optical coherence tomography (OCT) is widely used in ophthalmic practice because it can visualize retinal structure and vasculature in vivo and 3-dimensionally (3D). Even though OCT procedures yield data volumes, clinicians typically interpret the 3D images using two-dimensional (2D) data subsets, such as cross-sectional scans or en face projections. Since a single OCT volume can contain hundreds of cross-sections (each of which must be processed with retinal layer segmentation to produce en face images), a thorough manual analysis of the complete OCT volume can be prohibitively time-consuming. Furthermore, 2D reductions of the full OCT volume may obscure relationships between disease progression and the (volumetric) location of pathology within the retina and can be prone to mis-segmentation artifacts. In this work, we propose a novel framework that can detect several retinal pathologies in three dimensions using structural and angiographic OCT. Our framework operates by detecting deviations in reflectance, angiography, and simulated perfusion from a percent depth normalized standard retina created by merging and averaging scans from healthy subjects. We show that these deviations from the standard retina can highlight multiple key features, while the depth normalization obviates the need to segment several retinal layers. We also construct a composite pathology index that measures average deviation from the standard retina in several categories (hypo- and hyper-reflectance, nonperfusion, presence of choroidal neovascularization, and thickness change) and show that this index correlates with DR severity. Requiring minimal retinal layer segmentation and being fully automated, this 3D framework has a strong potential to be integrated into commercial OCT systems and to benefit ophthalmology research and clinical care.
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Shi YK, Li ZM, Qing Y, Zhang H, Jia Y, Jing H, Li Y, Tong X, Liu H, Li L. 618O A phase I study of TRS005: An anti-CD20-MMAE antibody-drug conjugate, in relapsed or refractory b cell non-Hodgkin lymphoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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43
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Ye C, Chen R, Jiang Q, Wu W, Yan F, Li Q, Shuaishuai X, Wang Y, Jia Y, Zhang X, Shen P, Ruan J. 915P EMLI-ICC: An ensemble machine learning-based proteome and transcriptome integration algorithm for metastasis prediction and risk-stratification in intrahepatic cholangiocarcinoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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44
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Wang J, Yu C, Jiang X, Wu X, Jia Y, Zhang H, Li Z. [Vasohibin-2 promotes proliferation and metastasis of cervical cancer cells by regulating epithelial-mesenchymal transition]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:966-975. [PMID: 35869758 DOI: 10.12122/j.issn.1673-4254.2022.07.02] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the role of vasohibin-2 (VASH2) in regulation of proliferation and metastasis of cervical cancer cells. METHODS We analyzed the differentially expressed genes between cervical cancer cells with flotillin-1 overexpression and knockdown by RNA-seq combined with analysis of public databases. The expression levels of VASH2 were examined in normal cervical epithelial cells (HcerEpic), cervical cancer cell lines (HeLa, C-33A, Ca ski, SiHa and MS751) and fresh cervical cancer tissues with different lymph node metastasis status. We further tested the effects of lentivirus-mediated overexpression and interference of VASH2 on proliferation, migration, invasion and lymphatic vessel formation of the cervical cancer cells and detected the expression levels of key epithelial-mesenchymal transition (EMT) markers and TGF-β mRNA. RESULTS RNA-seq and analysis of public databases showed that VASH2 expression was significantly upregulated in cervical cancer cells exogenously overexpressing flotillin-1 (P < 0.05) and downregulated in cells with flotillin-1 knockdown (P < 0.05), and was significantly higher in cervical cancer tissues with lymph node metastasis than in those without lymph node metastasis (P < 0.01). In cervical cancer cell lines Ca Ski, SiHa, and MS751 and cervical cancer tissue specimens with lymph node metastasis, VASH2 expression was also significantly upregulated as compared with HcerEpic cells and cervical cancer tissues without lymph node metastasis (P < 0.05). Exogenous overexpression of VASH2 significantly promoted proliferation, migration, invasion and lymphatic vessel formation of cervical cancer cells, whereas these abilities were significantly inhibited in cells with VASH2 knockdown (P < 0.05). The cervical cancer cells overexpressing VASH2 showed significant down- regulation of e-cadherin and up- regulation of N-cadherin, Vimentin and VEGF-C, while the reverse changes were detected in cells with VASH2 knockdown (P < 0.05). TGF-β mRNA expression was significantly up-regulated in cervical cancer cells overexpressing VASH2 and down-regulated in cells with VASH2 knockdown (P < 0.001). CONCLUSION Flotillin-1 may participate in TGF-β signaling pathway-mediated EMT through its down-stream target gene VASH2 to promote the proliferation, migration, invasion and lymphatic vessel formation of cervical cancer cells in vitro.
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Affiliation(s)
- J Wang
- Department of Gynecology, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming 650118, China
| | - C Yu
- Department of Gynecology, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming 650118, China
| | - X Jiang
- Department of Gynecology, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming 650118, China
| | - X Wu
- Department of Gynecology, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming 650118, China
| | - Y Jia
- Department of Gynecology, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming 650118, China
| | - H Zhang
- Department of Gynecology, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming 650118, China
| | - Z Li
- Department of Gynecology, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming 650118, China
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Zang P, Hormel TT, Wang X, Tsuboi K, Huang D, Hwang TS, Jia Y. A Diabetic Retinopathy Classification Framework Based on Deep-Learning Analysis of OCT Angiography. Transl Vis Sci Technol 2022; 11:10. [PMID: 35822949 PMCID: PMC9288155 DOI: 10.1167/tvst.11.7.10] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Reliable classification of referable and vision threatening diabetic retinopathy (DR) is essential for patients with diabetes to prevent blindness. Optical coherence tomography (OCT) and its angiography (OCTA) have several advantages over fundus photographs. We evaluated a deep-learning-aided DR classification framework using volumetric OCT and OCTA. Methods Four hundred fifty-six OCT and OCTA volumes were scanned from eyes of 50 healthy participants and 305 patients with diabetes. Retina specialists labeled the eyes as non-referable (nrDR), referable (rDR), or vision threatening DR (vtDR). Each eye underwent a 3 × 3-mm scan using a commercial 70 kHz spectral-domain OCT system. We developed a DR classification framework and trained it using volumetric OCT and OCTA to classify eyes into rDR and vtDR. For the scans identified as rDR or vtDR, 3D class activation maps were generated to highlight the subregions which were considered important by the framework for DR classification. Results For rDR classification, the framework achieved a 0.96 ± 0.01 area under the receiver operating characteristic curve (AUC) and 0.83 ± 0.04 quadratic-weighted kappa. For vtDR classification, the framework achieved a 0.92 ± 0.02 AUC and 0.73 ± 0.04 quadratic-weighted kappa. In addition, the multiple DR classification (non-rDR, rDR but non-vtDR, or vtDR) achieved a 0.83 ± 0.03 quadratic-weighted kappa. Conclusions A deep learning framework only based on OCT and OCTA can provide specialist-level DR classification using only a single imaging modality. Translational Relevance The proposed framework can be used to develop clinically valuable automated DR diagnosis system because of the specialist-level performance showed in this study.
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Affiliation(s)
- Pengxiao Zang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA.,Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
| | - Tristan T Hormel
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | | | - Kotaro Tsuboi
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA.,Department of Ophthalmology, Aichi Medical University, Nagakute, Japan
| | - David Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Thomas S Hwang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA.,Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
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Nguyen TTP, Ni S, Liang G, Khan S, Wei X, Skalet A, Ostmo S, Chiang MF, Jia Y, Huang D, Jian Y, Campbell JP. Widefield Optical Coherence Tomography in Pediatric Retina: A Case Series of Intraoperative Applications Using a Prototype Handheld Device. Front Med (Lausanne) 2022; 9:860371. [PMID: 35860728 PMCID: PMC9289179 DOI: 10.3389/fmed.2022.860371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 06/15/2022] [Indexed: 11/18/2022] Open
Abstract
Optical coherence tomography (OCT) has changed the standard of care for diagnosis and management of macular diseases in adults. Current commercially available OCT systems, including handheld OCT for pediatric use, have a relatively narrow field of view (FOV), which has limited the potential application of OCT to retinal diseases with primarily peripheral pathology, including many of the most common pediatric retinal conditions. More broadly, diagnosis of all types of retinal detachment (exudative, tractional, and rhegmatogenous) may be improved with OCT-based assessment of retinal breaks, identification of proliferative vitreoretinopathy (PVR) membranes, and the pattern of subretinal fluid. Intraocular tumors both benign and malignant often occur outside of the central macula and may be associated with exudation, subretinal and intraretinal fluid, and vitreoretinal traction. The development of wider field OCT systems thus has the potential to improve the diagnosis and management of myriad diseases in both adult and pediatric retina. In this paper, we present a case series of pediatric patients with complex vitreoretinal pathology undergoing examinations under anesthesia (EUA) using a portable widefield (WF) swept-source (SS)-OCT device.
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Affiliation(s)
- Thanh-Tin P. Nguyen
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
| | - Shuibin Ni
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, United States
| | - Guangru Liang
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, United States
| | - Shanjida Khan
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, United States
| | - Xiang Wei
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, United States
| | - Alison Skalet
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Knight Cancer Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Radiation Medicine, Oregon Health and Science University, Portland, OR, United States
- Department of Dermatology, Oregon Health and Science University, Portland, OR, United States
| | - Susan Ostmo
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
| | - Michael F. Chiang
- National Eye Institute, National Institutes of Health, Bethesda, MD, United States
| | - Yali Jia
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, United States
| | - David Huang
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, United States
| | - Yifan Jian
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, United States
| | - J. Peter Campbell
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
- *Correspondence: J. Peter Campbell,
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Jia Y, Wang A, Zhao B, Wang C, Su R, Zhang B, Fan Z, Zeng Q, He L, Pei X, Yue W. An optimized method for obtaining clinical-grade specific cell subpopulations from human umbilical cord-derived mesenchymal stem cells. Cell Prolif 2022; 55:e13300. [PMID: 35768999 PMCID: PMC9528761 DOI: 10.1111/cpr.13300] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/25/2022] [Accepted: 06/13/2022] [Indexed: 11/30/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are heterogeneous populations with broad application prospects in cell therapy, and using specific subpopulations of MSCs can enhance their particular capability under certain conditions and achieve better therapeutic effects. However, no studies have reported how to obtain high‐quality specific MSC subpopulations in vitro culture. Here, for the first time, we established a general operation process for obtaining high‐quality clinical‐grade cell subpopulations from human umbilical cord MSCs (hUC‐MSCs) based on particular markers. We used the MSC‐CD106+ subpopulations, whose biological function has been well documented, as an example to explore and optimize the crucial links of primary preparation, pre‐treatment, antibody incubation, flow sorting, quality and function test. After comprehensively evaluating the quality and function of the acquired MSC‐CD106+ subpopulations, including in vitro cell viability, apoptosis, proliferation, marker stability, adhesion ability, migration ability, tubule formation ability, immunomodulatory function and in vivo wound healing ability and proangiogenic activity, we defined an important pre‐treatment scheme which might effectively improve the therapeutic efficiency of MSC‐CD106+ subpopulations in two critical clinical application scenarios—direct injection after cell sorting and post‐culture injection into bodies. Based on the above, we tried to establish a general five‐step operation procedure for acquiring high‐quality clinical‐grade MSC subpopulations based on specific markers, which cannot only improve their enrichment efficiency and the reliability of preclinical studies, but also provide valuable methodological guidance for the rapid clinical transformation of specific MSC subpopulations.
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Affiliation(s)
- Yali Jia
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China.,South China Institute of Biomedicine, Guangzhou, China
| | - Ailin Wang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China.,Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Bichun Zhao
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China
| | - Chao Wang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China
| | - Ruyu Su
- South China Institute of Biomedicine, Guangzhou, China
| | - Biao Zhang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China
| | - Zeng Fan
- South China Institute of Biomedicine, Guangzhou, China.,Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Quan Zeng
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China.,South China Institute of Biomedicine, Guangzhou, China
| | - Lijuan He
- South China Institute of Biomedicine, Guangzhou, China.,Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China.,South China Institute of Biomedicine, Guangzhou, China.,Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Wen Yue
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Radiation Medicine, Beijing, China.,South China Institute of Biomedicine, Guangzhou, China
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48
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Zhang K, Jia Y, Wang R, Guo D, Yang P, Sun L, Wang Y, Liu F, Zang Y, Shi M, Zhang Y, Zhu Z. Rheumatoid arthritis and the risk of major cardiometabolic diseases: a Mendelian randomization study. Scand J Rheumatol 2022:1-7. [PMID: 35658786 DOI: 10.1080/03009742.2022.2070988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is suggested to be implicated in the development of cardiometabolic diseases. We conducted a Mendelian randomization (MR) study to assess potential causality for associations of RA with the risk of cardiometabolic diseases, including type 2 diabetes (T2D), coronary artery disease (CAD), and ischaemic stroke. METHOD Seventy independent single-nucleotide polymorphisms (SNPs) associated with RA were identified as instrumental variables from a genome-wide association study (GWAS) of 58 284 European subjects. Summary-level data for the associations of the 70 genetic variants with T2D, CAD, and ischaemic stroke were taken from three GWASs with a total of 1 529 131 participants. Inverse-variance weighted (IVW) MR was used in the main analyses. RESULTS The main IVW MR analysis showed that genetically determined RA was associated with higher risks of T2D [odds ratio (OR): 1.04, 95% confidence interval (CI) 1.02-1.05; p < 0.001] and CAD (OR: 1.02, 95% CI 1.00-1.03; p = 0.012), but not ischaemic stroke (OR: 1.00, 95% CI 0.99-1.02; p = 0.961). Sensitivity analyses with multiple MR methods confirmed these associations. MR-Egger regression showed no evidence of pleiotropy in the association between genetically determined RA and the risk of T2D, CAD, and ischaemic stroke. Leave-one-out sensitivity analysis showed that the association between genetically determined RA and the risk of T2D, CAD, and ischaemic stroke was not driven by any individual SNP. CONCLUSION Genetically determined RA was associated with increased risks of T2D and CAD, suggesting that RA plays a crucial role in the pathogenesis of T2D and CAD.
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Affiliation(s)
- K Zhang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Y Jia
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - R Wang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - D Guo
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China.,School of Nursing, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - P Yang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - L Sun
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Y Wang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - F Liu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Y Zang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - M Shi
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Y Zhang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Z Zhu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, P.R. China
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49
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Gao M, Guo Y, Hormel TT, Tsuboi K, Pacheco G, Poole D, Bailey ST, Flaxel CJ, Huang D, Hwang TS, Jia Y. A Deep Learning Network for Classifying Arteries and Veins in Montaged Widefield OCT Angiograms. Ophthalmology Science 2022; 2:100149. [PMID: 36278031 PMCID: PMC9562370 DOI: 10.1016/j.xops.2022.100149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 03/16/2022] [Accepted: 03/28/2022] [Indexed: 01/18/2023]
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50
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Tsuboi K, You QS, Guo Y, Wang J, Flaxel CJ, Bailey ST, Huang D, Jia Y, Hwang TS. Association Between Fluid Volume in Inner Nuclear Layer and Visual Acuity in Diabetic Macular Edema. Am J Ophthalmol 2022; 237:164-172. [PMID: 34942107 PMCID: PMC9035073 DOI: 10.1016/j.ajo.2021.12.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/30/2021] [Accepted: 12/09/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE In diabetic macular edema (DME), the correlation between visual acuity (VA) and central subfield thickness (CST) is weak. We hypothesize that fluid volume (FV) in the inner nuclear layer (INL) may correlate more strongly with VA. DESIGN Retrospective, cross-sectional study. METHODS One eye each of diabetic patients with DME was included. We measured intraretinal fluid volume that was detected by automated fluid detection algorithm on 3- × 3-mm optical coherence tomography angiogram volume scans. The detected fluid was subdivided into inner FV, bounded by the INL, and outer FV, the fluid between the outer border of INL to the ellipsoid zone. RESULTS We enrolled 125 patients with DME (60 women; mean age, 61 years). The mean detected inner FV was 0.013 mm3 in 109 eyes (87%). The mean detected outer FV was 0.042 mm3 in 124 eyes (99%). Univariate analysis demonstrated that the VA significantly correlated with the inner FV (P < .0001), whole macular FV (P = .010), and CST (P = .036). Multivariate analysis demonstrated that the inner FV was the only significant factor (β = -0.41, P = .004). These correlations were consistent when the treatment-naïve group (n = 33) and the eyes without previous laser treatments (n = 93) were analyzed separately. The area under the receiver operating characteristic curve of inner FV for VA of 20/32 or worse was significantly higher than that for CST (0.66 vs 0.54, P = .018). CONCLUSIONS The inner FV has a stronger association with VA than other OCT biomarkers in DME and may be more clinically useful.
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