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Li HY, Wang YY, Liu H, Liu HX, Jiang LY, Han YC, Zhou WY, Mao T, Fang WT. [The ninth edition of TNM staging for lung cancer: precise staging for precise diagnosis and treatment]. Zhonghua Wai Ke Za Zhi 2024; 62:537-542. [PMID: 38682624 DOI: 10.3760/cma.j.cn112139-20231210-00262] [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] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The ninth edition of TNM staging for lung cancer has been announced at the 2023 World Lung Cancer Congress and implemented from January 1, 2024. Te focus of the ninth TNM staging change is dividing N2 into N2a and N2b, as well as M1c into M1c1 and M1c2. Although the T staging has not changed, it has played an important role in verifying the eighth edition of the T staging. The subdivision of stage N2 has led some patients with ⅢA of the eighth edition to experience ascending or descending stages, which will more accurately help to assess the condition and prognosis of patients with mediastinal lymph node metastasis, as well as the design of related clinical studies. Modifying the M1c staging will help define oligometastasis and explore new treatment models in the future. The ninth edition of the TNM staging system provides a more detailed division of different tumor loads, but there is no clear explanation for the staging of lung cancer after neoadjuvant therapy. Further data analysis is needed, and it is expected to be answered in the tenth edition of TNM staging.
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Affiliation(s)
- H Y Li
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y Y Wang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - H Liu
- Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - H X Liu
- Department of Thoracic Surgery, Liaoning Provincial Cancer Hospital, Shenyang 110801, China
| | - L Y Jiang
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y C Han
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - W Y Zhou
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - T Mao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - W T Fang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
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2
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Oostrom M, Muniak MA, Eichler West RM, Akers S, Pande P, Obiri M, Wang W, Bowyer K, Wu Z, Bramer LM, Mao T, Webb-Robertson BJM. Fine-tuning TrailMap: The utility of transfer learning to improve the performance of deep learning in axon segmentation of light-sheet microscopy images. PLoS One 2024; 19:e0293856. [PMID: 38551935 PMCID: PMC10980229 DOI: 10.1371/journal.pone.0293856] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 02/14/2024] [Indexed: 04/01/2024] Open
Abstract
Light-sheet microscopy has made possible the 3D imaging of both fixed and live biological tissue, with samples as large as the entire mouse brain. However, segmentation and quantification of that data remains a time-consuming manual undertaking. Machine learning methods promise the possibility of automating this process. This study seeks to advance the performance of prior models through optimizing transfer learning. We fine-tuned the existing TrailMap model using expert-labeled data from noradrenergic axonal structures in the mouse brain. By changing the cross-entropy weights and using augmentation, we demonstrate a generally improved adjusted F1-score over using the originally trained TrailMap model within our test datasets.
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Affiliation(s)
- Marjolein Oostrom
- AI & Data Analytics Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Michael A. Muniak
- Vollum Institute, Oregon Health & Science University, Portland, OR, United States of America
| | - Rogene M. Eichler West
- AI & Data Analytics Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Sarah Akers
- AI & Data Analytics Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Paritosh Pande
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Moses Obiri
- AI & Data Analytics Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Wei Wang
- Appel Alzheimer’s Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, United States of America
| | - Kasey Bowyer
- Appel Alzheimer’s Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, United States of America
| | - Zhuhao Wu
- Appel Alzheimer’s Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, United States of America
| | - Lisa M. Bramer
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, OR, United States of America
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3
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Oostrom M, Muniak MA, Eichler West RM, Akers S, Pande P, Obiri M, Wang W, Bowyer K, Wu Z, Bramer LM, Mao T, Webb-Robertson BJ. Fine-tuning TrailMap: The utility of transfer learning to improve the performance of deep learning in axon segmentation of light-sheet microscopy images. bioRxiv 2023:2023.10.23.563546. [PMID: 37961439 PMCID: PMC10634742 DOI: 10.1101/2023.10.23.563546] [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] [Indexed: 11/15/2023]
Abstract
Light-sheet microscopy has made possible the 3D imaging of both fixed and live biological tissue, with samples as large as the entire mouse brain. However, segmentation and quantification of that data remains a time-consuming manual undertaking. Machine learning methods promise the possibility of automating this process. This study seeks to advance the performance of prior models through optimizing transfer learning. We fine-tuned the existing TrailMap model using expert-labeled data from noradrenergic axonal structures in the mouse brain. By fine-tuning the final two layers of the neural network at a lower learning rate of the TrailMap model, we demonstrate an improved recall and an occasionally improved adjusted F1-score within our test dataset over using the originally trained TrailMap model.
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Affiliation(s)
- Marjolein Oostrom
- AI & Data Analytics Division, Pacific Northwest National Laboratory, Richland, WA USA
| | - Michael A. Muniak
- Vollum Institute, Oregon Health & Science University, Portland, OR USA
| | | | - Sarah Akers
- AI & Data Analytics Division, Pacific Northwest National Laboratory, Richland, WA USA
| | - Paritosh Pande
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA USA
| | - Moses Obiri
- AI & Data Analytics Division, Pacific Northwest National Laboratory, Richland, WA USA
| | - Wei Wang
- Appel Alzheimer’s Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY USA
| | - Kasey Bowyer
- Appel Alzheimer’s Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY USA
| | - Zhuhao Wu
- Appel Alzheimer’s Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY USA
| | - Lisa M. Bramer
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA USA
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, OR USA
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Xiao Y, Peng S, Li X, Mao T, Fang M, Hu Y, Ye W. Treatment of paradoxical eczematous eruption in psoriasis treated with secukinumab: A case report. Medicine (Baltimore) 2023; 102:e32844. [PMID: 36820537 PMCID: PMC9907985 DOI: 10.1097/md.0000000000032844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
RATIONALE Eczematous eruption is an increasingly recognized form of drug-related eruption, typically reported in association with interleukin 17 (IL-17)A inhibitors. However, severe paradoxical eczematous eruption due to IL-17A inhibitors has been rarely reported. Herein, we reported a case of a man with severe psoriasis with erythematous scaly plaques on the scalp, trunk, and arms and legs after the administration of secukinumab was initiated. PATIENT CONCERNS We reported a case of a 20-year-old man with severe psoriasis with erythematous scaly plaques on the scalp, trunk, and arms and legs after the administration of secukinumab was initiated. A skin biopsy was performed. It revealed spongiotic dermatitis consistent with eczematous reaction. Direct and indirect immunofluorescence assays were negative. DIAGNOSES He was diagnosed with eczematous eruption. INTERVENTIONS Discontinuation of secukinumab and administration of cyclosporine and prednisone were considered. OUTCOMES Significant improvement was observed, with no adverse events. CONCLUSION Our case shows that eczematous eruption can paradoxically occur in patients on IL-17A inhibitors and this report is expected to increase awareness of the rising number of cutaneous eruptions related to biological agents.
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Affiliation(s)
- Yu Xiao
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
| | - Shanshan Peng
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
| | - Xiangjun Li
- The Central Hospital of Xiaogan, Jinzhou Medical University, Hubei, China
| | - Tianyi Mao
- The Central Hospital of Xiaogan, Jinzhou Medical University, Hubei, China
| | - Muping Fang
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
| | - Youhong Hu
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
| | - Wenzheng Ye
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
- * Correspondence: Wenzheng Ye, The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei 432000, China (e-mail: )
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Day-Cooney J, Dalangin R, Zhong H, Mao T. Genetically encoded fluorescent sensors for imaging neuronal dynamics in vivo. J Neurochem 2023; 164:284-308. [PMID: 35285522 DOI: 10.1111/jnc.15608] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/14/2022] [Accepted: 02/25/2022] [Indexed: 11/29/2022]
Abstract
The brain relies on many forms of dynamic activities in individual neurons, from synaptic transmission to electrical activity and intracellular signaling events. Monitoring these neuronal activities with high spatiotemporal resolution in the context of animal behavior is a necessary step to achieve a mechanistic understanding of brain function. With the rapid development and dissemination of highly optimized genetically encoded fluorescent sensors, a growing number of brain activities can now be visualized in vivo. To date, cellular calcium imaging, which has been largely used as a proxy for electrical activity, has become a mainstay in systems neuroscience. While challenges remain, voltage imaging of neural populations is now possible. In addition, it is becoming increasingly practical to image over half a dozen neurotransmitters, as well as certain intracellular signaling and metabolic activities. These new capabilities enable neuroscientists to test previously unattainable hypotheses and questions. This review summarizes recent progress in the development and delivery of genetically encoded fluorescent sensors, and highlights example applications in the context of in vivo imaging.
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Affiliation(s)
- Julian Day-Cooney
- Vollum Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Rochelin Dalangin
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, California, USA
| | - Haining Zhong
- Vollum Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Tianyi Mao
- Vollum Institute, Oregon Health and Science University, Portland, Oregon, USA
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Dai X, Jiang X, Jing Q, Zheng J, Zhu S, Mao T, Wang D. A one-stage deep learning method for fully automated mesiodens localization on panoramic radiographs. Biomed Signal Process Control 2023. [DOI: 10.1016/j.bspc.2022.104315] [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: 11/05/2022]
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Abstract
RATIONALE Porokeratosis ptychotropica represents an unusual form of porokeratosis characterized by symmetrical dyskeratotic skin lesions on the gluteal clefts. Herein, we report a case of porokeratosis ptychotropica. PATIENT CONCERNS A 33-year-old man, who complained of itching papules and plaques in the gluteal cleft and the buttocks for the last 7 years. Clinical examination showed a large well-defined reddish brown verrucous plaque located on both buttocks along with satellite papules on the inner thigh. Dermoscopy and histopathological findings were consistent with porokeratosis. DIAGNOSIS He was diagnosed with porokeratosis ptychotropica. OUTCOMES No significant improvement was observed following treatment with oral acitretin and a topical retinoid. LESSONS The case report highlights the need for awareness amongst dermatologists for porokeratosis ptychotropica as a differential diagnosis for pruritic papules in the gluteal fold.
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Affiliation(s)
- Yu Xiao
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
| | - Shanshan Peng
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
| | - Tianyi Mao
- The Central Hospital of Xiaogan, the Central Hospital of Xiaogan, Jinzhou Medical University, Hubei, China
| | - Xiangjun Li
- The Central Hospital of Xiaogan, the Central Hospital of Xiaogan, Jinzhou Medical University, Hubei, China
| | - Wenzheng Ye
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
- * Correspondence: Wenzheng Ye, the Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei 432000, China (e-mail: )
| | - Muping Fang
- The Central Hospital of Xiaogan, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Hubei, China
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Ma L, Day-Cooney J, Benavides OJ, Muniak MA, Qin M, Ding JB, Mao T, Zhong H. Locomotion activates PKA through dopamine and adenosine in striatal neurons. Nature 2022; 611:762-768. [PMID: 36352228 PMCID: PMC10752255 DOI: 10.1038/s41586-022-05407-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 10/03/2022] [Indexed: 11/10/2022]
Abstract
The canonical model of striatal function predicts that animal locomotion is associated with the opposing regulation of protein kinase A (PKA) in direct and indirect pathway striatal spiny projection neurons (SPNs) by dopamine1-7. However, the precise dynamics of PKA in dorsolateral SPNs during locomotion remain to be determined. It is also unclear whether other neuromodulators are involved. Here we show that PKA activity in both types of SPNs is essential for normal locomotion. Using two-photon fluorescence lifetime imaging8-10 of a PKA sensor10 through gradient index lenses, we measured PKA activity within individual SPNs of the mouse dorsolateral striatum during locomotion. Consistent with the canonical view, dopamine activated PKA activity in direct pathway SPNs during locomotion through the dopamine D1 receptor. However, indirect pathway SPNs exhibited a greater increase in PKA activity, which was largely abolished through the blockade of adenosine A2A receptors. In agreement with these results, fibre photometry measurements of an adenosine sensor11 revealed an acute increase in extracellular adenosine during locomotion. Functionally, antagonism of dopamine or adenosine receptors resulted in distinct changes in SPN PKA activity, neuronal activity and locomotion. Together, our results suggest that acute adenosine accumulation interplays with dopamine release to orchestrate PKA activity in SPNs and proper striatal function during animal locomotion.
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Affiliation(s)
- Lei Ma
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA
| | - Julian Day-Cooney
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA
| | - Omar Jáidar Benavides
- Department of Neurosurgery and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Michael A Muniak
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA
| | - Maozhen Qin
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA
| | - Jun B Ding
- Department of Neurosurgery and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Tianyi Mao
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA
| | - Haining Zhong
- Vollum Institute, Oregon Health and Science University, Portland, OR, USA.
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Du R, Zhu S, Ni H, Mao T, Li J, Wei R. Valence-arousal classification of emotion evoked by Chinese ancient-style music using 1D-CNN-BiLSTM model on EEG signals for college students. Multimed Tools Appl 2022; 82:15439-15456. [PMID: 36213341 PMCID: PMC9530425 DOI: 10.1007/s11042-022-14011-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 06/22/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
During the COVID-19 pandemic, young people are using multimedia content more frequently to communicate with each other on Internet platforms. Among them, music, as psychological support for a lonely life in this special period, is a powerful tool for emotional self-regulation and getting rid of loneliness. More and more attention has been paid to the music recommender system based on emotion. In recent years, Chinese music has tended to be considered an independent genre. Chinese ancient-style music is one of the new folk music styles in Chinese music and is becoming more and more popular among young people. The complexity of Chinese-style music brings significant challenges to the quantitative calculation of music. To effectively solve the problem of emotion classification in music information search, emotion is often characterized by valence and arousal. This paper focuses on the valence and arousal classification of Chinese ancient-style music-evoked emotion. It proposes a hybrid one-dimensional convolutional neural network and bidirectional and unidirectional long short-term memory model (1D-CNN-BiLSTM). And a self-acquisition EEG dataset for Chinese college students was designed to classify music-induced emotion by valence-arousal based on EEG. In addition to that, the proposed 1D-CNN-BILSTM model verified the performance of public datasets DEAP and DREAMER, as well as the self-acquisition dataset DESC. The experimental results show that, compared with traditional LSTM and 1D-CNN-LSTM models, the proposed method has the highest accuracy in the valence classification task of music-induced emotion, reaching 94.85%, 98.41%, and 99.27%, respectively. The accuracy of the arousal classification task also gained 93.40%, 98.23%, and 99.20%, respectively. In addition, compared with the positive valence classification results of emotion, this method has obvious advantages in negative valence classification. This study provides a computational classification model for a music recommender system with emotion. It also provides some theoretical support for the brain-computer interactive (BCI) application products of Chinese ancient-style music which is popular among young people.
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Affiliation(s)
- Ruoyu Du
- School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing, China
- Smart Health Big Data Analysis and Location Services Engineering Laboratory of Jiangsu Province, Nanjing, China
| | - Shujin Zhu
- School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing, China
- Smart Health Big Data Analysis and Location Services Engineering Laboratory of Jiangsu Province, Nanjing, China
| | - Huangjing Ni
- School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing, China
- Smart Health Big Data Analysis and Location Services Engineering Laboratory of Jiangsu Province, Nanjing, China
| | - Tianyi Mao
- School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing, China
- Smart Health Big Data Analysis and Location Services Engineering Laboratory of Jiangsu Province, Nanjing, China
| | - Jiajia Li
- School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing, China
| | - Ran Wei
- School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin, China
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Wilson EA, Mao T, Zhong H. Labeling Endogenous Proteins Using CRISPR-mediated Insertion of Exon (CRISPIE). Bio Protoc 2022; 12:e4343. [PMID: 35592602 PMCID: PMC8918219 DOI: 10.21769/bioprotoc.4343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 10/11/2021] [Accepted: 01/13/2022] [Indexed: 12/29/2022] Open
Abstract
The CRISPR/Cas9 technology has transformed our ability to edit eukaryotic genomes. Despite this breakthrough, it remains challenging to precisely knock-in large DNA sequences, such as those encoding a fluorescent protein, for labeling or modifying a target protein in post-mitotic cells. Previous efforts focusing on sequence insertion to the protein coding sequence often suffer from insertions/deletions (INDELs) resulting from the efficient non-homologous end joining pathway (NHEJ). To overcome this limitation, we have developed CRISPR-mediated insertion of exon (CRISPIE). CRISPIE circumvents INDELs and other editing errors by inserting a designer exon flanked by adjacent intron sequences into an appropriate intronic location of the targeted gene. Because INDELs at the insertion junction can be spliced out, "CRISPIEd" genes produce precisely edited mRNA transcripts that are virtually error-free. In part due to the elimination of INDELs, high-efficiency labeling can be achieved in vivo. CRISPIE is compatible with both N- and C-terminal labels, and with all common transfection methods. Importantly, CRISPIE allows for later removal of the protein modification by including exogenous single-guide RNA (sgRNA) sites in the intronic region of the donor module. This protocol provides the detailed CRISPIE methodology, using endogenous labeling of β-actin in human U-2 OS cells with enhanced green fluorescent protein (EGFP) as an example. When combined with the appropriate gene delivery methods, the same methodology can be applied to label post-mitotic neurons in culture and in vivo. This methodology can also be readily adapted for use in other gene editing contexts.
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Affiliation(s)
- Evan A. Wilson
- Vollum Institute, Oregon Health & Sciences University, Portland, OR, USA
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Sciences University, Portland, OR, USA
| | - Haining Zhong
- Vollum Institute, Oregon Health & Sciences University, Portland, OR, USA,
*For correspondence:
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Mao T, Ma X, Cuadros AP, Dai X, Wang Z, Zhang X, Zhu S, Zhu J, Arce GR. Static coded aperture in robotic X-ray tomography systems. Opt Express 2022; 30:7677-7693. [PMID: 35299524 DOI: 10.1364/oe.449505] [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: 12/17/2021] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Coded aperture X-ray computed tomography is a computational imaging technique capable of reconstructing inner structures of an object from a reduced set of X-ray projection measurements. Coded apertures are placed in front of the X-ray sources from different views and thus significantly reduce the radiation dose. This paper introduces coded aperture X-ray computed tomography for robotic X-ray systems which offer positioning flexibility. While single coded-aperture 3D tomography was recently introduced for standard trajectory CT scanning, it is shown that significant gains in imaging performance can be attained by simple modifications in the CT scanning trajectories enabled by emerging dual robotic CT systems. In particular, the subject is fixed on a plane and the CT system uniformly rotates around the r -axis which is misaligned with the coordinate axes. A single stationary coded aperture is placed on front of the robotic X-ray source above the plane and the corresponding X-ray projections are measured by a two-dimensional detector on the second arm of the robotic system. The compressive measurements with misalignment enable the reconstruction of high-resolution three-dimensional volumetric images from the low-resolution coded projections on the detector at a sub-sampling rate. An efficient algorithm is proposed to generate the rotation matrix with two basic sub-matrices and thus the forward model is formulated. The stationary coded aperture is designed based on the Pearson product-moment correlation coefficient analysis and the direct binary search algorithm is used to obtain the optimized coded aperture. Simulations using simulated datasets show significant gains in reconstruction performance compared to conventional coded aperture CT systems.
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12
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Zhao X, Jiang X, Han A, Mao T, He W, Chen Q. Photon-efficient 3D reconstruction employing a edge enhancement method. Opt Express 2022; 30:1555-1569. [PMID: 35209313 DOI: 10.1364/oe.446369] [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: 10/19/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Photon-efficient 3D reconstruction under sparse photon conditions remains challenges. Especially for scene edge locations, the light scattering results in a weaker echo signal than non-edge locations. Depth images can be viewed as smooth regions stitched together by edge segmentation, yet none of the existing methods focus on how to improve the accuracy of edge reconstruction when performing 3D reconstruction. Moreover, the impact of edge reconstruction to overall depth reconstruction hasn't been investigated. In this paper, we explore how to improve the edge reconstruction accuracy from various aspects such as improving the network structure, employing hybrid loss functions and taking advantages of the non-local correlation of SPAD measurements. Meanwhile, we investigate the correlation between the edge reconstruction accuracy and the reconstruction accuracy of overall depth based on quantitative metrics. The experimental results show that the proposed method achieves superior performance in both edge reconstruction and overall depth reconstruction compared with other state-of-the-art methods. Besides, it proves that the improvement of edge reconstruction accuracy promotes the reconstruction accuracy of depth map.
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13
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Melander JB, Nayebi A, Jongbloets BC, Fortin DA, Qin M, Ganguli S, Mao T, Zhong H. Distinct in vivo dynamics of excitatory synapses onto cortical pyramidal neurons and parvalbumin-positive interneurons. Cell Rep 2021; 37:109972. [PMID: 34758304 PMCID: PMC8631347 DOI: 10.1016/j.celrep.2021.109972] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 09/03/2021] [Accepted: 10/19/2021] [Indexed: 11/18/2022] Open
Abstract
Cortical function relies on the balanced activation of excitatory and inhibitory neurons. However, little is known about the organization and dynamics of shaft excitatory synapses onto cortical inhibitory interneurons. Here, we use the excitatory postsynaptic marker PSD-95, fluorescently labeled at endogenous levels, as a proxy for excitatory synapses onto layer 2/3 pyramidal neurons and parvalbumin-positive (PV+) interneurons in the barrel cortex of adult mice. Longitudinal in vivo imaging under baseline conditions reveals that, although synaptic weights in both neuronal types are log-normally distributed, synapses onto PV+ neurons are less heterogeneous and more stable. Markov model analyses suggest that the synaptic weight distribution is set intrinsically by ongoing cell-type-specific dynamics, and substantial changes are due to accumulated gradual changes. Synaptic weight dynamics are multiplicative, i.e., changes scale with weights, although PV+ synapses also exhibit an additive component. These results reveal that cell-type-specific processes govern cortical synaptic strengths and dynamics. Melander et al. use a genetic strategy to visualize excitatory neuronal connections that cannot be inferred from morphology, and they monitor how the connections change over weeks in mice. They find distinct characteristics between synapses onto cells that “suppress” brain activity and those onto cells that “excite” brain activity.
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Affiliation(s)
- Joshua B Melander
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA; Neurosciences PhD Program, Stanford University, Stanford, CA 94305, USA
| | - Aran Nayebi
- Neurosciences PhD Program, Stanford University, Stanford, CA 94305, USA
| | - Bart C Jongbloets
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Dale A Fortin
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Maozhen Qin
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Surya Ganguli
- Department of Applied Physics, Stanford University, Stanford, CA 94305, USA.
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
| | - Haining Zhong
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
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14
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Massengill CI, Day-Cooney J, Mao T, Zhong H. Genetically encoded sensors towards imaging cAMP and PKA activity in vivo. J Neurosci Methods 2021; 362:109298. [PMID: 34339753 PMCID: PMC8659126 DOI: 10.1016/j.jneumeth.2021.109298] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 05/12/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 12/26/2022]
Abstract
Cyclic adenosine monophosphate (cAMP) is a universal second messenger that plays a crucial role in diverse biological functions, ranging from transcription to neuronal plasticity, and from development to learning and memory. In the nervous system, cAMP integrates inputs from many neuromodulators across a wide range of timescales - from seconds to hours - to modulate neuronal excitability and plasticity in brain circuits during different animal behavioral states. cAMP signaling events are both cell-specific and subcellularly compartmentalized. The same stimulus may result in different, sometimes opposite, cAMP dynamics in different cells or subcellular compartments. Additionally, the activity of protein kinase A (PKA), a major cAMP effector, is also spatiotemporally regulated. For these reasons, many laboratories have made great strides toward visualizing the intracellular dynamics of cAMP and PKA. To date, more than 80 genetically encoded sensors, including original and improved variants, have been published. It is starting to become possible to visualize cAMP and PKA signaling events in vivo, which is required to study behaviorally relevant cAMP/PKA signaling mechanisms. Despite significant progress, further developments are needed to enhance the signal-to-noise ratio and practical utility of these sensors. This review summarizes the recent advances and challenges in genetically encoded cAMP and PKA sensors with an emphasis on in vivo imaging in the brain during behavior.
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Affiliation(s)
| | - Julian Day-Cooney
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
| | - Haining Zhong
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
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15
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Xu RH, Wang F, Cui C, Yao J, Zhang Y, Wang G, Feng J, Yang S, Fan Y, Shi J, Zhang X, Shen L, Shu Y, Wang C, Dai T, Mao T, Chen L, Guo Z, Liu B, Pan H. 1373MO JUPITER-06: A randomized, double-blind, phase III study of toripalimab versus placebo in combination with first-line chemotherapy for treatment naive advanced or metastatic esophageal squamous cell carcinoma (ESCC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1482] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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16
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Ma L, Jongbloets BC, Xiong WH, Melander JB, Qin M, Lameyer TJ, Harrison MF, Zemelman BV, Mao T, Zhong H. A Highly Sensitive A-Kinase Activity Reporter for Imaging Neuromodulatory Events in Awake Mice. Neuron 2021; 109:2202. [PMID: 34237279 DOI: 10.1016/j.neuron.2021.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Zhong H, Ceballos CC, Massengill CI, Muniak MA, Ma L, Qin M, Petrie SK, Mao T. High-fidelity, efficient, and reversible labeling of endogenous proteins using CRISPR-based designer exon insertion. eLife 2021; 10:64911. [PMID: 34100715 PMCID: PMC8211447 DOI: 10.7554/elife.64911] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 06/07/2021] [Indexed: 12/26/2022] Open
Abstract
Precise and efficient insertion of large DNA fragments into somatic cells using gene editing technologies to label or modify endogenous proteins remains challenging. Non-specific insertions/deletions (INDELs) resulting from the non-homologous end joining pathway make the process error-prone. Further, the insert is not readily removable. Here, we describe a method called CRISPR-mediated insertion of exon (CRISPIE) that can precisely and reversibly label endogenous proteins using CRISPR/Cas9-based editing. CRISPIE inserts a designer donor module, which consists of an exon encoding the protein sequence flanked by intron sequences, into an intronic location in the target gene. INDELs at the insertion junction will be spliced out, leaving mRNAs nearly error-free. We used CRISPIE to fluorescently label endogenous proteins in mammalian neurons in vivo with previously unachieved efficiency. We demonstrate that this method is broadly applicable, and that the insert can be readily removed later. CRISPIE permits protein sequence insertion with high fidelity, efficiency, and flexibility.
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Affiliation(s)
- Haining Zhong
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | - Cesar C Ceballos
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | | | - Michael A Muniak
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | - Lei Ma
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | - Maozhen Qin
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | - Stefanie Kaech Petrie
- Department of Neurology, Oregon Health & Science University, Portland, United States
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, United States
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Zhao Q, Ma X, Cuadros A, Mao T, Arce GR. Single-snapshot X-ray imaging for nonlinear compressive tomosynthesis. Opt Express 2020; 28:29390-29407. [PMID: 33114840 DOI: 10.1364/oe.392054] [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: 03/04/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Traditional compressive X-ray tomosynthesis uses sequential illumination to interrogate the object, leading to long scanning time and image distortion due to the object variation. This paper proposes a single-snapshot compressive tomosynthesis imaging approach, where the object is simultaneously illuminated by multiple X-ray emitters equipped with coded apertures. Based on rank, intensity and sparsity prior models, a nonlinear image reconstruction framework is established. The coded aperture patterns are optimized based on uniform sensing criteria. Then, a modified split Bregman algorithm is developed to reconstruct the object from the set of nonlinear compressive measurements. It is shown that the proposed method can be used to reduce the inspection time and achieve robust reconstruction with respect to shape variation or motion of objects.
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Sun YF, Jiang HY, Gu HY, He Y, Yang Y, Zhang XB, Yang Y, Hua R, Guo XF, Ye B, Mao T, Li ZG. [Preliminary results of Chinese magnetic sphincter augmentation in treating gastroesophageal reflux disease]. Zhonghua Wai Ke Za Zhi 2020; 58:691-696. [PMID: 32878416 DOI: 10.3760/cma.j.cn112139-20200224-00133] [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: 11/05/2022]
Abstract
Objective: To examine the preliminary clinical efficacy of Chinese magnetic sphincter augmentation (MSA) in the treatment of gastroesophageal reflux disease (GERD). Methods: According to the enrollment criteria for the MSA developed by ShengJieKang Co. and Shanghai Chest Hospital (SS-MSA) clinical trial, a total of 19 GERD patients were treated with SS-MSA from August 2018 to January 2020 at Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University. The majority of registered cases were male patients with age of (32.2±7.3) years (range: 22 to 50 years), height of (170.7±6.2) cm (range: 160 to 179 cm) and weight of (65.2±10.3) kg (range: 47.5 to 90.0 kg). SS-MSA was implanted via laparoscopy. The major evaluation indexs of postoperative efficacy were the total time of acid exposure within 24 hours and the total number of reflux. Secondary efficacy indicators included: (1) evaluation of the average daily dose of proton pump inhibitor medications; (2) the score of GERD health related quality of life questionnaire (GERD-Q) before and after MSA implantation. Paired design t-test was used to evaluate the efficacy of the SS-MSA. Results: A total of 19 patients underwent SS-MSA surgery successfully. The history of the GERD were 19 (54) months (M(Q(R))). The operation time was 63 (22) minutes and the in-hospital stay was 3 (2) days. No obvious surgical complications occurred. Postoperative adverse events included 14 cases with mild to moderate dysphagia exited after surgery, gradually eased within 1 to 3 months, 1 case with the removal of the device after 1 month of severe swallowing difficulties, 1 case of diarrhea. No corrosion, perforation, displacement occurred. The GERD-Q score (11.0(4.5) vs. 6(1.0), t=4.274, P=0.013), 24-hour acid exposure time (6.2(4.8)% vs. 0.1(0.9)%, t=5.814, P=0.004), and Demeester score (23.72(16.20) vs. 0.96(3.10), t=6.678, P=0.003) were significantly decreased 1 year after surgery(n=5). Proton pump inhibitor reuse rates were 6/18, 5/15, 3/10, and 1/5 in 1, 3, 6 and 12 months after the operation, respectively. Conclusions: SS-MSA implantation is feasible and safe with short hospital stay and rare perioperative complications. The preliminary results is good after 1 year follow-up. It could be expected to be an ideal substitutive for future GERD treatment.
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Affiliation(s)
- Y F Sun
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - H Y Jiang
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - H Y Gu
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Y He
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Y Yang
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - X B Zhang
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Y Yang
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - R Hua
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - X F Guo
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - B Ye
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - T Mao
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Z G Li
- Section of Esophageal Surgery, Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
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20
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Zhao Y, Gu Z, Mao T, Fang W. P2.15-06 Pretreatment Neutrophil to Lymphocyte Ratio Predicts Survival in Thymic Carcinoma Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1860] [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: 11/26/2022]
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21
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Jongbloets BC, Ma L, Mao T, Zhong H. Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy. J Vis Exp 2019. [PMID: 31233029 DOI: 10.3791/59526] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Neuromodulation exerts powerful control over brain function. Dysfunction of neuromodulatory systems results in neurological and psychiatric disorders. Despite their importance, technologies for tracking neuromodulatory events with cellular resolution are just beginning to emerge. Neuromodulators, such as dopamine, norepinephrine, acetylcholine, and serotonin, trigger intracellular signaling events via their respective G protein-coupled receptors to modulate neuronal excitability, synaptic communications, and other neuronal functions, thereby regulating information processing in the neuronal network. The above mentioned neuromodulators converge onto the cAMP/protein kinase A (PKA) pathway. Therefore, in vivo PKA imaging with single-cell resolution was developed as a readout for neuromodulatory events in a manner analogous to calcium imaging for neuronal electrical activities. Herein, a method is presented to visualize PKA activity at the level of individual neurons in the cortex of head-fixed behaving mice. To do so, an improved A-kinase activity reporter (AKAR), called tAKARα, is used, which is based on Förster resonance energy transfer (FRET). This genetically-encoded PKA sensor is introduced into the motor cortex via in utero electroporation (IUE) of DNA plasmids, or stereotaxic injection of adeno-associated virus (AAV). FRET changes are imaged using two-photon fluorescence lifetime imaging microscopy (2pFLIM), which offers advantages over ratiometric FRET measurements for quantifying FRET signal in light-scattering brain tissue. To study PKA activities during enforced locomotion, tAKARα is imaged through a chronic cranial window above the cortex of awake, head-fixed mice, which run or rest on a speed-controlled motorized treadmill. This imaging approach will be applicable to many other brain regions to study corresponding behavior-induced PKA activities and to other FLIM-based sensors for in vivo imaging.
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Affiliation(s)
| | - Lei Ma
- Vollum Institute, Oregon Health & Science University
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University
| | - Haining Zhong
- Vollum Institute, Oregon Health & Science University;
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Birdsong WT, Jongbloets BC, Engeln KA, Wang D, Scherrer G, Mao T. Synapse-specific opioid modulation of thalamo-cortico-striatal circuits. eLife 2019; 8:45146. [PMID: 31099753 PMCID: PMC6541437 DOI: 10.7554/elife.45146] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 05/15/2019] [Indexed: 11/19/2022] Open
Abstract
The medial thalamus (MThal), anterior cingulate cortex (ACC) and striatum play important roles in affective-motivational pain processing and reward learning. Opioids affect both pain and reward through uncharacterized modulation of this circuitry. This study examined opioid actions on glutamate transmission between these brain regions in mouse. Mu-opioid receptor (MOR) agonists potently inhibited MThal inputs without affecting ACC inputs to individual striatal medium spiny neurons (MSNs). MOR activation also inhibited MThal inputs to the pyramidal neurons in the ACC. In contrast, delta-opioid receptor (DOR) agonists disinhibited ACC pyramidal neuron responses to MThal inputs by suppressing local feed-forward GABA signaling from parvalbumin-positive interneurons. As a result, DOR activation in the ACC facilitated poly-synaptic (thalamo-cortico-striatal) excitation of MSNs by MThal inputs. These results suggest that opioid effects on pain and reward may be shaped by the relative selectivity of opioid drugs to the specific circuit components.
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Affiliation(s)
- William T Birdsong
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | - Bart C Jongbloets
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | - Kim A Engeln
- Vollum Institute, Oregon Health & Science University, Portland, United States
| | - Dong Wang
- Department of Anesthesiology Perioperative and Pain Medicine, Stanford Neurosciences Institute, Stanford University, Stanford, United States.,Department of Molecular and Cellular Physiology, Stanford Neurosciences Institute, Stanford University, Stanford, United States.,Department of Neurosurgery, Stanford Neurosciences Institute, Stanford University, Stanford, United States
| | - Grégory Scherrer
- Department of Anesthesiology Perioperative and Pain Medicine, Stanford Neurosciences Institute, Stanford University, Stanford, United States.,Department of Molecular and Cellular Physiology, Stanford Neurosciences Institute, Stanford University, Stanford, United States.,Department of Neurosurgery, Stanford Neurosciences Institute, Stanford University, Stanford, United States.,New York Stem Cell Foundation - Robertson Investigator, Stanford University, Palo Alto, United States
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, United States
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23
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Guo XF, Hua R, Sun YF, Yang Y, Ye B, Li B, Gu HY, Zhang XB, Mao T, Li ZG. [Experiences of esophageal replacement with ileocolon graft: a series of 34 cases]. Zhonghua Wai Ke Za Zhi 2019; 56:299-302. [PMID: 29562417 DOI: 10.3760/cma.j.issn.0529-5815.2018.e011] [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: 11/05/2022]
Abstract
Objective: To evaluate the safety and effectiveness of esophageal replacement with ileocolon graft. Methods: Totally 34 cases of esophageal replacement with ileocolon graft from July 2015 to November 2017 at Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiaotong University were analyzed retrospectively, including 24 male and 10 female, aging from 7 to 72 years old. Esophageal replacement with ileocolon graft by right and/or middle colic artery as a blood supply using retrosternal route except one subcutaneous route. The primary esophageal disease, postoperative complication rate and quality of life were analyzed. Results: The overall postoperative complication rate was 23.5% (8/34), cervical anastomotic leakage rate of 5.9% (2/34), necrosis of colon graft of 5.9% (2/34). There were 3 patients experienced re-operation including 2 patients with colon graft necrosis and 1 patient with intestinal obstruction after ERC. One patient with colon graft necrosis died of septic shock after reoperation. Six cases of cervical esophago-jejunal anastomosis stenosis and 1 case of diarrhea occurred in the later time. All patients were followed up for a median time of 9 months (range: 1 to 28 months), 32 cases survived but 1 patient died until last follow-up by the end of December 2017. Conclusion: Esophageal replacement with ileocolon graft by right and/or middle colic artery as a blood supply using retrosternal route was safe and effective.
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Affiliation(s)
- X F Guo
- Department of Thoracic Surgery, Shanghai Chest Hospital, Section of Esophageal Cancer, Shanghai Jiaotong University, Shanghai 200030, China
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24
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Ma X, Zhao Q, Cuadros A, Mao T, Arce GR. Source and coded aperture joint optimization for compressive X-ray tomosynthesis. Opt Express 2019; 27:6640-6659. [PMID: 30876245 DOI: 10.1364/oe.27.006640] [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: 01/16/2019] [Accepted: 02/02/2019] [Indexed: 06/09/2023]
Abstract
Compressive X-ray tomosynthesis is an emerging technique to reconstruct three-dimensional (3D) objects from two-dimensional projection measurements generated by a set of spatially distributed X-ray sources, where coded apertures are used in front of each source to modulate a set of X-rays to interrogate an object with a reduced radiation dose without loss of image reconstruction quality. The reconstruction performance in compressive tomosynthesis is influenced by several factors including the locations of the X-ray sources, their incident angles, and the coded apertures that determine the structured illumination patterns. This paper develops a source and coded aperture joint optimization (SCO) approach to improve the image reconstruction performance of compressive X-ray tomosynthesis. Based on compressive sensing theory, the synergy among the source pattern, source orientation, and the coded apertures is utilized to minimize the coherence of the sensing matrix of the imaging system. In concert with a gradient-based optimization algorithm, regularization methods are used to reduce the convergence error and achieve uniform sensing of the object under inspection. Compared to the optimization of either the source orientation, or the coded aperture individually, the proposed method effectively increases the degree of optimization freedom, and thus achieves considerable improvement in the 3D imaging reconstruction accuracy.
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25
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Huang P, Mao T, Yu Q, Cao Y, Yu J, Zhang G, Hou D. Classification of water contamination developed by 2-D Gabor wavelet analysis and support vector machine based on fluorescence spectroscopy. Opt Express 2019; 27:5461-5477. [PMID: 30876149 DOI: 10.1364/oe.27.005461] [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: 11/23/2018] [Accepted: 01/13/2019] [Indexed: 06/09/2023]
Abstract
The identification of the specific categories of pollutants in the urban water supply system is necessary. Traditional detection methods are based mainly on common water quality indicators. However, inspecting these water quality indicators is made difficult by issues such as long analysis time, insufficient sensitivity, need for reagents, and generation of waste liquid. These problems hinder high-frequency water detection and monitoring. In this study, three-dimensional (3D) fluorescence spectroscopy is adopted as a monitoring method for water quality. An identification method based on two-dimensional (2D) Gabor wavelets and support vector machine (SVM) multi-classification is also proposed. The Delaunay triangulation method for interpolation is used to pre-process 3D fluorescence spectra and thereby eliminate Rayleigh scattering and Raman scattering. A 2D Gabor wavelet function generated by filters of different scales and rotation angles is proposed to extract the features of the spectra. The block statistics method, based on Gabor feature description, is employed to enhance the efficiency in describing spectra features. Then, multiple SVM classifiers are used in pollutant classification and recognition. By comparing the proposed method with principal component analysis, which is a commonly used feature extraction method, this study finds that the application of 2D Gabor wavelets and block statistics can effectively describe the characteristics of 3D fluorescence spectra. Moreover, 2D Gabor wavelets achieve high classification accuracy, especially for substances with closely positioned or overlapping characteristic peaks.
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Zhao J, Yu QY, Hou F, Fu WW, Chen H, Yang WY, Mao T. [Revision of the process of paraffin-embeded section for the digital endoscopic submucosal dissection surgery evaluation system]. Zhonghua Bing Li Xue Za Zhi 2019; 48:147-149. [PMID: 30695870 DOI: 10.3760/cma.j.issn.0529-5807.2019.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Zhao
- Department of Digital Pathology, Institute of Digital Medicine and Computer Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Q Y Yu
- Department of Digital Pathology, Institute of Digital Medicine and Computer Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - F Hou
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - W W Fu
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - H Chen
- Endoscopy Center of Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - W Y Yang
- Department of Ophthalmology and Pathology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - T Mao
- Endoscopy Center of Affiliated Hospital of Qingdao University, Qingdao 266000, China
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Mao T, Cuadros AP, Ma X, He W, Chen Q, Arce GR. Fast optimization of coded apertures in X-ray computed tomography. Opt Express 2018; 26:24461-24478. [PMID: 30469563 DOI: 10.1364/oe.26.024461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 08/19/2018] [Indexed: 06/09/2023]
Abstract
Coded aperture X-ray computed tomography (CAXCT) is a novel X-ray imaging system capable of reconstructing high quality images from a reduced set of measurements. Coded apertures are placed in front of the X-ray source in CAXCT so as to obtain patterned projections onto a detector array. Then, compressive sensing (CS) reconstruction algorithms are used to reconstruct the linear attenuation coefficients. The coded aperture is an important factor that influences the point spread function (PSF), which in turn determines the capability to sample the linear attenuation coefficients of the object. A coded aperture optimization approach was recently proposed based on the coherence of the system matrix; however, this algorithm is memory intensive and it is not able to optimize the coded apertures for large image sizes required in many applications. This paper introduces a significantly more efficient approach for coded aperture optimization that reduces the memory requirements and the execution time by orders of magnitude. The features are defined as the inner product of the vectors representing the geometric paths of the X-rays with the sparse basis representation of the object; therefore, the algorithm aims to find a subset of features that minimizes the information loss compared to the complete set of projections. This subset corresponds to the unblocking elements in the optimized coded apertures. The proposed approach solves the memory and runtime limitations of the previously proposed algorithm and provides a significant gain in the reconstruction image quality compared to that attained by random coded apertures in both simulated datasets and real datasets.
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28
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Ma L, Jongbloets BC, Xiong WH, Melander JB, Qin M, Lameyer TJ, Harrison MF, Zemelman BV, Mao T, Zhong H. A Highly Sensitive A-Kinase Activity Reporter for Imaging Neuromodulatory Events in Awake Mice. Neuron 2018; 99:665-679.e5. [PMID: 30100256 PMCID: PMC6152931 DOI: 10.1016/j.neuron.2018.07.020] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 06/01/2018] [Accepted: 07/11/2018] [Indexed: 01/01/2023]
Abstract
Neuromodulation imposes powerful control over brain function, and cAMP-dependent protein kinase (PKA) is a central downstream mediator of multiple neuromodulators. Although genetically encoded PKA sensors have been developed, single-cell imaging of PKA activity in living mice has not been established. Here, we used two-photon fluorescence lifetime imaging microscopy (2pFLIM) to visualize genetically encoded PKA sensors in response to the neuromodulators norepinephrine and dopamine. We screened available PKA sensors for 2pFLIM and further developed a variant (named tAKARα) with increased sensitivity and a broadened dynamic range. This sensor allowed detection of PKA activation by norepinephrine at physiologically relevant concentrations and kinetics, and by optogenetically released dopamine. In vivo longitudinal 2pFLIM imaging of tAKARα tracked bidirectional PKA activities in individual neurons in awake mice and revealed neuromodulatory PKA events that were associated with wakefulness, pharmacological manipulation, and locomotion. This new sensor combined with 2pFLIM will enable interrogation of neuromodulation-induced PKA signaling in awake animals. VIDEO ABSTRACT.
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Affiliation(s)
- Lei Ma
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Bart C Jongbloets
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Wei-Hong Xiong
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Joshua B Melander
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Maozhen Qin
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Tess J Lameyer
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Madeleine F Harrison
- Center for Learning and Memory, The University of Texas at Austin, Austin, TX 78712, USA
| | - Boris V Zemelman
- Center for Learning and Memory, The University of Texas at Austin, Austin, TX 78712, USA
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
| | - Haining Zhong
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
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Wang W, Xiong H, Hu Z, Zhao R, Hu Y, Chen W, Han Y, Yang L, Hu X, Wang C, Mao T, Xia K, Su T. Experimental study on TGF-β1-mediated CD147 expression in oral submucous fibrosis. Oral Dis 2018; 24:993-1000. [PMID: 29457855 DOI: 10.1111/odi.12845] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/08/2018] [Accepted: 02/09/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Although previous evidence indicates that CD147 is closely involved in the progression of organ fibrosis and various signaling pathways have been proven to regulate its expression, the role of CD147 in oral submucous fibrosis (OSF) remains largely unknown. METHODS In this study, we investigated the expression of CD147 and transforming growth factor β1 (TGF-β1) in human samples of an OSF tissue array by immunohistopathology. Pearson's correlation analysis was conducted to explore the correlation between CD147 and TGF-β1. Immunofluorescence and Western blotting were used to investigate to levels of CD147 in Human Oral Keratinocytes (HOKs) followed by TGF-β1 or LY2157299, an inhibitor of TGF-β1 receptor and arecoline stimulation. RESULTS We found that CD147 was highly expressed in both HOKs and the fibrotic oral mucosa and that this expression was correlated with TGF-β1 expression. Additionally, CD147 levels were significantly associated with the fibrosis stage. The TGF-β1 signaling pathway was found to be mainly responsible for CD147 up-regulation after arecoline treatment whereas inhibition of TGF-β1 down-regulated CD147 expression. CONCLUSION Our findings suggest arecoline promotes CD147 expression via the TGF-β1 signaling pathway in HOKs, whereas overexpression of CD147 may promote OSF progression.
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Affiliation(s)
- W Wang
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China.,Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - H Xiong
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Z Hu
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - R Zhao
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Y Hu
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - W Chen
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Y Han
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - L Yang
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - X Hu
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - C Wang
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - T Mao
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - K Xia
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - T Su
- Centre of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
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An Y, Song G, Liu D, Mao T, Zhao Y, Xie W. Analysis of the main constituents of Changshu tablet and its spasmolysis effect against contraction induced by acetylcholine in the rat-isolated intestinal smooth muscle. Pak J Pharm Sci 2018; 31:835-840. [PMID: 29716863] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The Changshu tablet (CST), one kind of Chinese patent medicine with astringent to the intestine and relieving diarrhea, was made by the root of Rose odorata Sweet var. gigantean (Coll.et Hemsl.) Rehd.et Wils. Although CST has a long history of clinical application, but the research of its chemical composition is less. So the objective of this study was to investigate the main constituents and preliminarily research its effect of the contraction of isolated intestine in vitro. The contents of total polyphenols (126.23mg/g) and total triterpenoids (132.75mg/g) in CST were determined by ultraviolet spectrophotometry. Procyanidin B3, epigallo catechin, catechin, epicatechin, (-)-fisetinidol-(4α, 8)-(-)-catechin, (4α, 8)-(-)-fisetinidol-(-)-epicatechins and (+)-guibourtinidol-(4β, 8)-epicatechin were identified and determined by high performance liquid chromatography and their contents were distributed from 0.04mg/g to 1.46 mg/g. CST showed significant inhibitory effect against acetylcholine-induced contraction on the rat-isolated intestinal smooth muscle with a dose-dependent manner from 0.06 to 0.6mg/mL. The maxim inhibition rates of CST on duodenum, jejunum, ileum and colon were 65.70±3.47%, 79.74±1.27%, 58.90±1.87% and 45.75±2.21% respectively. These results indicated that CST has a spasmolytic role in gastrointestinal motility which was probably mediated through inhibition of muscarinic receptors. All these findings promote the improvement of the quality control standard of CST and provide pharmacological foundation for clinical application of CST in gastrointestinal tract.
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Affiliation(s)
- Ying An
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental Hazard, Tianjin, PR China / Logistics College of Chinese People's Armed Police Forces, Tianjin, PR China
| | - Guangming Song
- Logistics College of Chinese People's Armed Police Forces, Tianjin, PR China
| | - Dailin Liu
- Logistics College of Chinese People's Armed Police Forces, Tianjin, PR China / Logistics College of Chinese People's Armed Police Forces, Tianjin, PR China
| | - Tianyi Mao
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental Hazard, Tianjin, PR China
| | - Yanmin Zhao
- Logistics College of Chinese People's Armed Police Forces, Tianjin, PR China / Logistics College of Chinese People's Armed Police Forces, Tianjin, PR China
| | - Wenli Xie
- Logistics College of Chinese People's Armed Police Forces, Tianjin, PR China
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Mao T, Yang M, Yang J, Luo X, Ji Y, Wang Y, Zhou G. 0199 Effect Of Short-term Ambient Light Exposure On Subjective Sleepiness. Sleep 2018. [DOI: 10.1093/sleep/zsy061.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Mao
- School of Psychology, South China Normal University, Guangzhou, CHINA
| | - M Yang
- School of Psychology, South China Normal University, Guangzhou, CHINA
| | - J Yang
- School of Psychology, South China Normal University, Guangzhou, CHINA
| | - X Luo
- School of Psychology, South China Normal University, Guangzhou, CHINA
| | - Y Ji
- School of Psychology, South China Normal University, Guangzhou, CHINA
| | - Y Wang
- School of Psychology, South China Normal University, Guangzhou, CHINA
| | - G Zhou
- Institute of Electronic Paper Displays and Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, CHINA
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Hua R, Mao T, Li Z. P-141IMPACT OF NARROW GASTRIC CONDUIT ON SHORT-TERM OUTCOME FOLLOWING THORACO-LAPAROSCOPIC OESOPHAGECTOMY. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.141] [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: 11/14/2022] Open
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33
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Wu T, Ye M, Mao T, Lin F, Hu Y, Gan N, Shao Y. Human telomeric hybrid-2-over-hybrid-1 G-quadruplex targeting and a selective hypersaline-tolerant sensor using abasic site-engineered monomorphism. Anal Chim Acta 2017; 964:161-169. [DOI: 10.1016/j.aca.2017.01.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 01/13/2017] [Accepted: 01/21/2017] [Indexed: 02/02/2023]
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Jongbloets BC, Lemstra S, Schellino R, Broekhoven MH, Parkash J, Hellemons AJCGM, Mao T, Giacobini P, van Praag H, De Marchis S, Ramakers GMJ, Pasterkamp RJ. Stage-specific functions of Semaphorin7A during adult hippocampal neurogenesis rely on distinct receptors. Nat Commun 2017; 8:14666. [PMID: 28281529 PMCID: PMC5353663 DOI: 10.1038/ncomms14666] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/23/2017] [Indexed: 02/06/2023] Open
Abstract
The guidance protein Semaphorin7A (Sema7A) is required for the proper development of the immune and nervous systems. Despite strong expression in the mature brain, the role of Sema7A in the adult remains poorly defined. Here we show that Sema7A utilizes different cell surface receptors to control the proliferation and differentiation of neural progenitors in the adult hippocampal dentate gyrus (DG), one of the select regions of the mature brain where neurogenesis occurs. PlexinC1 is selectively expressed in early neural progenitors in the adult mouse DG and mediates the inhibitory effects of Sema7A on progenitor proliferation. Subsequently, during differentiation of adult-born DG granule cells, Sema7A promotes dendrite growth, complexity and spine development through β1-subunit-containing integrin receptors. Our data identify Sema7A as a key regulator of adult hippocampal neurogenesis, providing an example of how differential receptor usage spatiotemporally controls and diversifies the effects of guidance cues in the adult brain.
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Affiliation(s)
- Bart C. Jongbloets
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Suzanne Lemstra
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Roberta Schellino
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and Neuroscience Institute Cavalieri Ottolenghi, University of Torino, 10100 Torino, Italy
| | - Mark H. Broekhoven
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Jyoti Parkash
- Centre for Animal Sciences, School of Basic and Applied Sciences, Central University Punjab, City Campus, Mansa Road, Bathinda 151001, India
| | - Anita J. C. G. M. Hellemons
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Tianyi Mao
- Vollum Institute, Oregon Health & Science University, Portland, Oregon 97239, USA
| | - Paolo Giacobini
- Inserm, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Jean-Pierre Aubert Research Centre, U1172, 59045 Lille, France
- University of Lille, 59045 Lille, France
| | - Henriette van Praag
- Neuroplasticity and Behavior Unit, Laboratory of Neurosciences, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland 21224, USA
| | - Silvia De Marchis
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and Neuroscience Institute Cavalieri Ottolenghi, University of Torino, 10100 Torino, Italy
| | - Geert M. J. Ramakers
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - R. Jeroen Pasterkamp
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
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Hunnicutt BJ, Jongbloets BC, Birdsong WT, Gertz KJ, Zhong H, Mao T. A comprehensive excitatory input map of the striatum reveals novel functional organization. eLife 2016; 5. [PMID: 27892854 PMCID: PMC5207773 DOI: 10.7554/elife.19103] [Citation(s) in RCA: 269] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 11/25/2016] [Indexed: 01/02/2023] Open
Abstract
The striatum integrates excitatory inputs from the cortex and the thalamus to control diverse functions. Although the striatum is thought to consist of sensorimotor, associative and limbic domains, their precise demarcations and whether additional functional subdivisions exist remain unclear. How striatal inputs are differentially segregated into each domain is also poorly understood. This study presents a comprehensive map of the excitatory inputs to the mouse striatum. The input patterns reveal boundaries between the known striatal domains. The most posterior striatum likely represents the 4th functional subdivision, and the dorsomedial striatum integrates highly heterogeneous, multimodal inputs. The complete thalamo-cortico-striatal loop is also presented, which reveals that the thalamic subregions innervated by the basal ganglia preferentially interconnect with motor-related cortical areas. Optogenetic experiments show the subregion-specific heterogeneity in the synaptic properties of striatal inputs from both the cortex and the thalamus. This projectome will guide functional studies investigating diverse striatal functions. DOI:http://dx.doi.org/10.7554/eLife.19103.001 To fully understand how the brain works, we need to understand how different brain structures are organized and how information flows between these structures. For example, the cortex and thalamus communicate with another structure known as the basal ganglia, which is essential for controlling voluntary movement, emotions and reward behaviour in humans and other mammals. Information from the cortex and the thalamus enters the basal ganglia at an area called the striatum. This area is further divided into smaller functional regions known as domains that sort sensorimotor, emotion and executive information into the basal ganglia to control different types of behaviour. Three such domains have been identified in the striatum of mice. However, the boundaries between these domains are vague and it is not clear whether any other domains exist or if the domains can actually be divided into even smaller areas with more precise roles. Information entering the striatum from other parts of the brain can either stimulate activity in the striatum (known as an “excitatory input”) or alter existing excitatory inputs. Now, Hunnicutt et al. present the first comprehensive map of excitatory inputs into the striatum of mice. The experiments show that while many of the excitatory inputs flowing into the striatum from the cortex and thalamus are sorted into the three known domains, a unique combination of the excitatory inputs are sorted into a new domain instead. One of the original three domains of the striatum is known to relay information related to associative learning, for example, linking an emotion to a person or place. Hunnicutt et al. show that this domain has a more complex architecture than the other domains, being made up of many distinct areas. This complexity may help it to process the various types of information required to make such associations. The findings of Hunnicutt et al. provide a framework for understanding how the striatum works in healthy and diseased brains. Since faulty information processing in the striatum is a direct cause of Parkinson’s disease, Huntington’s disease and other neurological disorders in humans, this framework may aid the development of new treatments for these disorders. DOI:http://dx.doi.org/10.7554/eLife.19103.002
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Affiliation(s)
- Barbara J Hunnicutt
- Vollum Institute, Oregon Health and Science University, Portland, United States
| | - Bart C Jongbloets
- Vollum Institute, Oregon Health and Science University, Portland, United States
| | - William T Birdsong
- Vollum Institute, Oregon Health and Science University, Portland, United States
| | - Katrina J Gertz
- Vollum Institute, Oregon Health and Science University, Portland, United States
| | - Haining Zhong
- Vollum Institute, Oregon Health and Science University, Portland, United States
| | - Tianyi Mao
- Vollum Institute, Oregon Health and Science University, Portland, United States
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Dai H, Gu G, He W, Ye L, Mao T, Chen Q. Adaptive compressed photon counting 3D imaging based on wavelet trees and depth map sparse representation. Opt Express 2016; 24:26080-26096. [PMID: 27857346 DOI: 10.1364/oe.24.026080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We demonstrate a photon counting 3D imaging system with short-pulsed structured illumination and a single-pixel photon counting detector. The proposed multiresolution photon counting 3D imaging technique acquires a high-resolution 3D image from a coarse image and details at successfully finer resolution sampled along the wavelet trees and their depth map sparse representations. Both the required measurements and the reconstruction time can be significant reduced, which makes the proposed technique suitable for scenes with high spatial resolution. The experimental results indicate that both the reflectivity and depth map of a scene at resolutions up to 512×512 pixels can be acquired and retrieved with practical times as low as 17.5 seconds. In addition, we demonstrate that this technique has ability to image in presence of partially-transmissive occluders, and to directly acquire novelty images to find changes in a scene.
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37
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Wu T, Ramamoorthy S, Wilson T, Chen F, Porsov E, Subhash H, Foster S, Zhang Y, Omelchenko I, Bateschell M, Wang L, Brigande JV, Jiang ZG, Mao T, Nuttall AL. Optogenetic Control of Mouse Outer Hair Cells. Biophys J 2016; 110:493-502. [PMID: 26789771 DOI: 10.1016/j.bpj.2015.11.3521] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/15/2015] [Accepted: 11/13/2015] [Indexed: 01/28/2023] Open
Abstract
Normal hearing in mammals depends on sound amplification by outer hair cells (OHCs) presumably by their somatic motility and force production. However, the role of OHC force production in cochlear amplification and frequency tuning are not yet fully understood. Currently, available OHC manipulation techniques for physiological or clinical studies are limited by their invasive nature, lack of precision, and poor temporal-spatial resolution. To overcome these limitations, we explored an optogenetic approach based on channelrhodopsin 2 (ChR-2), a direct light-activated nonselective cation channel originally discovered in Chlamydomonas reinhardtii. Three approaches were compared: 1) adeno-associated virus-mediated in utero transfer of the ChR-2 gene into the developing murine otocyst, 2) expression of ChR-2(H134R) in an auditory cell line (HEI-OC1), and 3) expression of ChR-2 in the OHCs of a mouse line carrying a ChR-2 conditional allele. Whole cell recording showed that blue light (470 nm) elicited the typical nonselective cation current of ChR-2 with reversal potential around zero in both mouse OHCs and HEI-OC1 cells and generated depolarization in both cell types. In addition, pulsed light stimulation (10 Hz) elicited a 1:1 repetitive depolarization and ChR-2 currents in mouse OHCs and HEI-OC1 cells, respectively. The time constant of depolarization in OHCs, 1.45 ms, is 10 times faster than HEI-OC1 cells, which allowed light stimulation up to rates of 10/s to elicit corresponding membrane potential changes. Our study demonstrates that ChR-2 can successfully be expressed in mouse OHCs and HEI-OC1 cells and that these present a typical light-sensitive current and depolarization. However, the amount of ChR-2 current induced in our in vivo experiments was insufficient to result in measurable cochlear effects.
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Affiliation(s)
- Tao Wu
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Sripriya Ramamoorthy
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Teresa Wilson
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Fangyi Chen
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Edward Porsov
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Hrebesh Subhash
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Sarah Foster
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Yuan Zhang
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Irina Omelchenko
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Michael Bateschell
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Lingyan Wang
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - John V Brigande
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Zhi-Gen Jiang
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon
| | - Tianyi Mao
- The Vollum Institute, Oregon Health & Science University, Portland, Oregon
| | - Alfred L Nuttall
- Oregon Hearing Research Center, NRC04, Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon; Kresge Hearing Research Institute, The University of Michigan, Ann Arbor, Michigan.
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Nie K, Mao T, Shi L, Yue N, Jabbour S, Kim S, Hu X, Qian L, Sun X, Niu T. SU-F-R-34: Quantitative Perfusion Measurement in Rectal Cancer Using Three Different Pharmacokinetic Models: Implications for Prospective Study Design. Med Phys 2016. [DOI: 10.1118/1.4955806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Bai Y, Wu P, Mao T, Gong S, Wang J, Sheng K, Xie Y, Niu T. SU-D-206-04: Iterative CBCT Scatter Shading Correction Without Prior Information. Med Phys 2016. [DOI: 10.1118/1.4955658] [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: 11/07/2022] Open
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Wu P, Mao T, Gong S, Wang J, Sheng K, Xie Y, Niu T. SU-D-206-03: Segmentation Assisted Fast Iterative Reconstruction Method for Cone-Beam CT. Med Phys 2016. [DOI: 10.1118/1.4955657] [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: 11/07/2022] Open
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Nie K, Shi L, Yue N, Jabbour S, Kim S, Mao T, Qian L, Hu X, Sun X, Niu T. SU-F-R-48: Early Prediction of Pathological Response of Locally Advanced Rectal Cancer Using Perfusion CT:A Prospective Clinical Study. Med Phys 2016. [DOI: 10.1118/1.4955819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chen QZ, Sun YC, Chen J, Kong J, Gong YP, Mao T. Comparative study of functional and aesthetically outcomes of reverse digital artery and reverse dorsal homodigital island flaps for fingertip repair. J Hand Surg Eur Vol 2015; 40:935-43. [PMID: 25862526 DOI: 10.1177/1753193415579300] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 01/18/2015] [Indexed: 02/03/2023]
Abstract
UNLABELLED This retrospective study was designed to compare functional and cosmetic outcomes of the reverse digital artery island flap and reverse dorsal homodigital island flap in fingertip repair. A total of 23 patients were followed for 24 to 30 months. The reverse digital artery island flap was used in 12 patients, and reverse dorsal homodigital island flap in another 11 patients. Flap sensibility was assessed using the Semmes-Weinstein monofilament test and static 2-point discrimination test. Patient satisfaction, active motion of the finger joints, complications and cold intolerance were evaluated. The static 2-point discrimination and Michigan Hand Outcomes Questionnaire (appearance) of the fingers treated with a reverse digital artery flap were significantly better than those with a reverse dorsal homodigital flap. The static 2-point discrimination of the skin-grafted donor sides after dorsal homodigital flap were poorer than that in the contralateral finger. No significant differences were found between the two flaps for pressure or touch sensibility, active ranges of digital motion, complications and cold intolerance. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Q Z Chen
- Department of Hand Surgery, Affiliated Hospital of Nantong University, Jiangsu, China
| | - Y C Sun
- Department of Hand Surgery, Affiliated Hospital of Nantong University, Jiangsu, China
| | - J Chen
- Department of Hand Surgery, Affiliated Hospital of Nantong University, Jiangsu, China
| | - J Kong
- Department of Hand Surgery, Affiliated Hospital of Nantong University, Jiangsu, China
| | - Y P Gong
- Department of Hand Surgery, Affiliated Hospital of Nantong University, Jiangsu, China
| | - T Mao
- Department of Hand Surgery, Affiliated Hospital of Nantong University, Jiangsu, China
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Wu P, Mao T, Xie S, Sheng K, Niu T, Niu T. WE-G-207-09: A Practical Bowtie Ring Artifact Correction Algorithm for Cone-Beam CT. Med Phys 2015. [DOI: 10.1118/1.4926102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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He C, Mao T, Feng Y, Song T, Qin C, Yan R, Feng P. Anti-CII antibody as a novel indicator to assess disease activity in systemic lupus erythematosus. Lupus 2015; 24:1370-6. [PMID: 26048288 DOI: 10.1177/0961203315588970] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 05/06/2015] [Indexed: 11/16/2022]
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disorder that affects a variety of organ systems. Anti-dsDNA Abs and complement factors have been used as indicators of lupus activity for more than 50 years. A novel indicator of activation in SLE is reported in this paper. Anti-collagen type II (CII) Ab was obviously elevated in patients with SLE compared to those patients with ankylosing spondylitis (AS) and healthy controls (HCs). Anti-CII-Ab-positive patients with SLE showed significantly higher levels of serum IgG and higher titers of ANA but lower levels of C3 and C4 than controls. A positive correlation was demonstrated between anti-CII Ab and serum IgG in SLE patients (r = 0.50, p < 0.0001). The negative correlations of anti-CII Ab with C3 and C4 were observed in SLE patients (r = -0.36, p = 0.0013; r = -0.37, p = 0.0006, respectively). The reduced anti-CII Ab level was accompanied by decreased level of serum IgG and increased levels of C3 and C4 after regular treatment. Therefore, anti-CII Ab could be a novel indicator for monitoring activity of SLE.
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Affiliation(s)
- C He
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - T Mao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Y Feng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - T Song
- Department of Clinical Nutrition, 302 Hospital of PLA, Beijing, China
| | - C Qin
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - R Yan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - P Feng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
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Xue Y, Wang L, Xia D, Li Q, Gao S, Dong M, Cai T, Shi S, He L, Hu K, Mao T, Duan X. Dental Abnormalities Caused by Novel Compound Heterozygous CTSK Mutations. J Dent Res 2015; 94:674-81. [PMID: 25731711 DOI: 10.1177/0022034515573964] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cathepsin K (CTSK) is an important protease responsible for degrading type I collagen, osteopontin, and other bone matrix proteins. The mutations in the CTSK gene can cause pycnodysostosis (OMIM 265800), a rare autosomal recessive bone dysplasia. Patients with pycnodysostosis have been reported to present specific dental abnormalities; however, whether these dental abnormalities are related to dysfunctional CTSK has never been reported. Here we investigated the histologic changes of cementum and alveolar bone in a pycnodysostosis patient, caused by novel compound heterozygous mutations in the CTSK gene (c.87 G>A p.W29X and c.848 A>G p.Y283C). The most impressive manifestations in tooth were extensive periradicular high-density clumps with unclear periodontal space by orthopantomography examination and micro-computed tomography scanning analysis. Hematoxylin/eosin and toluidine blue staining and atomic force microscopy analysis showed that the cementum became significantly thickened, softened, and full of cementocytes. The disorganized bone structure was the main character of alveolar bone. The p.W29X mutation may represent the loss-of-function allele with an earlier termination codon in the precursor CTSK polypeptide. Residue Y283 is highly conserved among papain-like cysteine proteases. Three-dimensional structure modeling analysis found that the loss of the hydroxybenzene residue in the Y283C mutation would interrupt the hydrogen network and possibly affect the self-cleavage of the CTSK enzyme. Furthermore, p.Y283C mutation did not affect the mRNA and protein levels of overexpressed CTSK in COS-7 system but did reduce CTSK enzyme activity. In conclusion, the histologic and ultrastructural changes of cementum and alveolar bone might be affected by CTSK mutation via reduction of its enzyme activity (clinical trial registration: ChiCTR-TNC-10000876).
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Affiliation(s)
- Y Xue
- State Key Laboratory of Military Stomatology, Department of Oral Biology, Clinic of Oral Rare and Genetic Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - L Wang
- Department of Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - D Xia
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, Denmark
| | - Q Li
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, Denmark
| | - S Gao
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, Denmark
| | - M Dong
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, Denmark
| | - T Cai
- Oral Infection and Immunity Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - S Shi
- Center for Craniofacial Molecular Biology, University of Southern California School of Dentistry, Los Angeles, CA, USA
| | - L He
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - K Hu
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - T Mao
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - X Duan
- State Key Laboratory of Military Stomatology, Department of Oral Biology, Clinic of Oral Rare and Genetic Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
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Zhu L, Chen X, Xu Z, Xu L, Mao T, Zhang H. Changes and clinical significance of peripheral blood helper T lymphocyte and natural killer (NK) cells in unexplained recurrent spontaneous abortion (URSA) patients after abortion and successful pregnancy. CLIN EXP OBSTET GYN 2015. [DOI: 10.12891/ceog1789.2015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Zhu LY, Chen X, Xu ZZ, Xu L, Mao T, Zhang H. Changes and clinical significance of peripheral blood helper T lymphocyte and natural killer (NK) cells in unexplained recurrent spontaneous abortion (URSA) patients after abortion and successful pregnancy . CLIN EXP OBSTET GYN 2015; 42:62-66. [PMID: 25864284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE This study aims to investigate the number changes and the clinical significance of the peripheral blood T lymphocyte subsets and NK (natural killer) cells in unexplained recurrent spontaneous abortion (URSA) patients before and after abortion, as well as after successful pregnancy. MATERIALS AND METHODS Thirty-nine URSA patients (URSA-abortion group), among who 22 patients were followed up until the final successful parturition (URSA-pregnancy group), 31 normal-pregnancy (NP) cases and 25 normal non-pregnancy (NNP) control cases in which the peripheral blood T lymphocytes and subsets, B cells, and NK cells were assessed flow cytometry. RESULTS Compared with the URSA-pregnancy group and the NP group, the Th cells and NK cells of the URSA-abortion group increased (p < 0.05); compared with the NNP group, the total number of T cells decreased after the first, second, and third month of the URSA abortion (p < 0.05); Th cells decreased within one to six months of the URSA abortion (p < 0.05); proportion of NK cells was significantly higher in URSA patients (p < 0.05). CONCLUSION The abnormal numbers of the peripheral blood T cell subsets and NK cells were related with the occurrence of URSA.
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Liu C, Mao T. 189: Characterization of ovarian carcinoma-associated fibroblasts: The capability in predicting tumor aggressiveness. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50162-1] [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: 11/25/2022]
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Gu Z, Fang W, Guo X, Ji C, Mao T. F-064 * COMPARISON OF PULMONARY FUNCTION AFTER VIDEO-ASSISTED THORACOSCOPIC LOBECTOMY AND LIMITED RESECTIONS FOR EARLY STAGE LUNG CANCER. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.64] [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: 11/13/2022] Open
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