Article
Physiology
Haili Huang, Lijia Tian, Xinghuai Sun, Yuhong Chen
Summary: This prospective comparative study used SS-OCT to compare the morphological characteristics of SC between POAG patients and healthy controls. The study found that eyes with POAG had a decreased en face SC area compared with normal eyes, and there was a correlation between SC area, visible percentage of en face images, and intraocular pressure (IOP).
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Medicine, General & Internal
Giacomo Toneatto, Marco Zeppieri, Veronica Papa, Laura Rizzi, Carlo Salati, Andrea Gabai, Paolo Brusini
Summary: This study evaluated the effectiveness of OMNI viscosurgical system for ab-interno microcatheterization and 360 degrees viscodilation of Schlemm's canal in adult patients with open angle glaucoma. The results showed that this technique was safe and relatively effective in reducing intraocular pressure and decreasing the number of ocular hypotensive medications used.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Physiology
Yujin Zhao, Yue Li, Jiaxu Hong, Qihua Le, Jianjiang Xu
Summary: This study evaluated the impact of keratoplasty on the in vivo anatomical structures in the Schlemm's canal of nonglaucomatous subjects using FD-OCT. It found significant morphological changes in SC early after keratoplasty, accompanied by elevated IOP. Early intervention may be necessary to prevent secondary glaucoma after keratoplasty.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Biochemical Research Methods
Xinwen Yao, Bingyao Tan, Yijie Ho, Xinyu Liu, Damon Wong, Jacqueline Chua, Tina T. Wong, Shamira Perera, Marcus Ang, Rene M. Werkmeister, Leopold Schmetterer
Summary: In this study, full circumferential imaging of the Schlemm's canal (SC) was performed on human eyes using a Fourier domain mode-lock laser (FDML) and a semi-automated active contour segmentation algorithm. Three-dimensional (3D) renderings of the SC were reconstructed by stitching segmented SCs from volumetric datasets. Quantitative metrics of the full circumferential SC were provided, including the mean and standard deviation of the cross-sectional area (CSA), maximum CSA, SC opening width, and number of collector channels (CC) stemming from the SC.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Ophthalmology
Kevin C. Choy, Guorong Li, W. Daniel Stamer, Sina Farsiu
Summary: This study developed an automatic deep learning approach and software for segmenting the SC lumen in living mouse eyes' OCT scans. Using a novel CNN model trained on 163 OCT scans, the results show that the model's performance is comparable to that of human graders.
EXPERIMENTAL EYE RESEARCH
(2022)
Article
Multidisciplinary Sciences
Xuan Wu, Bingyao Tan, Jinyuan Gan, Adeline R. Lam, Yibing Chen, Xinyu Liu, Jacqueline Chua, Damon W. K. Wong, Marcus Ang, Leopold Schmetterer, Xinwen Yao
Summary: In this pilot study, we examined the performance of human Schlemm's canal imaging using different OCT devices and found that measurements from CIRRUS were significantly different from PLEX and CASIA in terms of cross-sectional area, contrast, and coverage. No significant difference was observed in continuity among the three devices.
SCIENTIFIC REPORTS
(2022)
Article
Medicine, General & Internal
Liu Zhang, Yihua Yao, Qingxia Lin, Yanhong Li, Jianhui Zhang
Summary: This study compared the efficacy and safety of using a CO2 laser and a conventional surgical knife in SC surgery. The results showed that laser surgery was faster, less technically challenging, and had fewer complications. CO2 laser-assisted ablation also had a shorter learning curve and a higher success rate.
FRONTIERS IN MEDICINE
(2022)
Article
Ophthalmology
Teruhiko Hamanaka, Tetsuro Sakurai, Nobuo Fuse, Nobuo Ishida, Toshio Kumasaka, Masaki Tanito
Summary: Histological differences in Schlemm's canal (SC) and trabecular meshwork (TM) between glaucoma patients of different age groups were investigated. Young-onset JOAG patients showed developmental abnormalities, while elderly-onset POAG patients exhibited collapse of SC lumen. Significant differences were found in clinical parameters and tissue structures between glaucoma patients of different age groups.
EXPERIMENTAL EYE RESEARCH
(2021)
Article
Ophthalmology
Toshit Varshney, Kishan Azmira, Shikha Gupta, Karthikeyan Mahalingam, Abhishek Singh, Dewang Angmo, Viney Gupta
Summary: The presence of Schlemm's canal on ASOCT is a strong predictor for successful intraocular pressure reduction after selective laser trabeculoplasty in patients with juvenile-onset open-angle glaucoma.
AMERICAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Multidisciplinary Sciences
Ji-Hye Park, Hyun Woo Chung, Eun Gyu Yoon, Min Jung Ji, Chungkwon Yoo, Yong Yeon Kim
Summary: This study investigated the effects of glaucoma treatment medications on the microstructures of the aqueous outflow pathway, finding that prostaglandin analog usage significantly increased trabecular meshwork thickness and decreased Schlemm's canal area.
SCIENTIFIC REPORTS
(2021)
Review
Ophthalmology
Katarzyna Lewczuk, Joanna Jablonska, Joanna Konopinska, Zofia Mariak, Marek Rekas
Summary: This review discusses the physiological mechanisms leading to elevated intraocular pressure in glaucoma due to obstruction of aqueous humor outflow, detailing the pathway of aqueous humor through ocular channels and the crucial role of Schlemm's canal in the pathogenesis of glaucoma. Additionally, an accurate method for assessing the aqueous drainage pathway is introduced.
ACTA OPHTHALMOLOGICA
(2022)
Article
Ophthalmology
Emmi Kapiainen, Harri Elamaa, Ilkka Miinalainen, Valerio Izzi, Lauri Eklund
Summary: This study demonstrates the additive effect of Angpt4 in maintaining SC and activating Tie2, as well as the synergistic interaction between Angpt4 and Angpt2. The interplay between the angiopoietins is crucial for maintaining the integrity of the iridocorneal angle.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Eri Takahashi, Junji Saruwatari, Tomokazu Fujimoto, Yuki Tanoue, Takaichi Fukuda, Toshihiro Inoue
Summary: The study revealed that TM cells communicate with SCE cells through exomiRs, with miR-7515 potentially playing a crucial role in the reprogramming of SCE cells.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Ruth A. Kelly, Kristin M. Perkumas, Matthew Campbell, G. Jane Farrar, W. Daniel Stamer, Pete Humphries, Jeffrey O'Callaghan, Colm J. O'Brien
Summary: This study found that glaucomatous Schlemm's canal endothelial cells (gSCECs) exhibit a stiffer and more fibrotic phenotype compared to healthy SCECs. gSCECs expressed higher levels of fibrotic markers and increased protein expression of TGF beta-2, a driver of fibrosis. Additionally, gSCECs were larger in size, proliferated and migrated at a higher rate, and showed reduced mitochondrial activity compared to healthy SCECs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Ophthalmology
Tomoki Sato, Takahiro Kawaji
Summary: Various extents and locations of Schlemm's canal incisions during suture trabeculotomy ab interno for open-angle glaucoma, including 360 degrees, upper-180 degrees, and lower-180 degrees incisions, showed comparable reductions in intraocular pressure and number of medications throughout a 12-month follow-up period, with no significant impact on surgical success rates.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Chemistry, Physical
Chunyu Wang, Jiaxu Hong, Zhenlin Yang, Xujiao Zhou, Yuhan Yang, Yu Kong, Binfan Chen, Huifang Wu, Bin-Zhi Qian, Dimiter S. Dimitrov, Xingtao Zhou, Yanling Wu, Tianlei Ying
Summary: This study introduced a novel Fab-like antibody fragment, FabCH3, generated via an in silico-based engineering approach, which exhibited improved stability and affinity compared to the parental Fab. High-resolution crystal structure analysis revealed that FabCH3 has more rigid structures, explaining its enhanced performance. The stabilized FabCH3 provides a versatile platform for engineers to develop Fab-like antibody fragments with higher stability and antigen-binding affinity.
Article
Engineering, Biomedical
Xuejing Cheng, Huiyu Chen, Fang Yang, Jiaxu Hong, Yiyun Cheng, Jingjing Hu
Summary: Bacterial keratitis is a common corneal infection that can lead to blindness. Current clinical treatment with antibiotic eye drops is not effective. This study proposes a supramolecular hydrogel composed of guanosine-5'-monophosphate disodium salt and tobramycin, which shows promising therapeutic efficacy and good biocompatibility for bacterial keratitis.
BIOACTIVE MATERIALS
(2022)
Article
Ophthalmology
Jingyi Cheng, Anji Wei, Jiaxu Hong, Jianjiang Xu
Summary: This pilot study found that low-temperature plasma (LTP) could be an effective adjuvant treatment for mild to moderate fungal keratitis. Patients in the LTP group had a higher healing rate, deeper initial ulcer depth, and better visual improvement. However, LTP treatment also had risks, and some patients experienced adverse reactions and treatment failure.
OCULAR IMMUNOLOGY AND INFLAMMATION
(2023)
Article
Medicine, General & Internal
Minjie Chen, Anji Wei, Jianjiang Xu, Xingtao Zhou, Jiaxu Hong
Summary: This study compares the interoperator repeatability and agreement between tear meniscus height (TMH) measurements obtained with a keratograph and Fourier-domain optical coherence tomography (FD-OCT) and evaluates their efficacy in detecting dry eye disease (DED). The results reveal that the TMHs measured with the keratograph are slightly lower than those obtained with FD-OCT. FD-OCT TMH measurements are more reliable than keratograph data in the DED group, although there is poor agreement between the two devices in both groups.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Medicine, General & Internal
Yuqing Wu, Hao Jiang, Xujiao Zhou, Zimeng Zhai, Pei Yang, Shuyun Zhou, Hao Gu, Jianjiang Xu, Jiaxu Hong
Summary: This study investigated the morphological and functional changes of meibomian glands in pediatric and adult patients with allergic conjunctivitis. The results showed that meibomian glands in pediatric patients improved after treatment, while there was no improvement in adult patients. Age and baseline meibomian gland area ratio were predictors of improvement in meibomian glands.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Medicine, General & Internal
Zimeng Zhai, Hao Jiang, Yuqing Wu, Pei Yang, Shuyun Zhou, Jiaxu Hong
Summary: The study demonstrated that low fluence intense pulsed light therapy is a safe and effective alternative for treating moderate-to-severe pediatric blepharitis, and MG dropout tends to recover more easily in younger patients.
JOURNAL OF CLINICAL MEDICINE
(2022)
Editorial Material
Medicine, General & Internal
Yiteng Lu, Yuqing Wu, Xujiao Zhou, Takenori Inomata, Lei Gu, Xiuming Jin, Jiaxu Hong
FRONTIERS IN MEDICINE
(2022)
Article
Ophthalmology
Xia Li, Jianjiang Xu, Jiaxu Hong, Jing Yao
Summary: Long-term orthokeratology treatment can improve corneal biomechanical properties in myopic eyes and slow down myopia progression. Smaller vertical axial deformation, reduced maximum eye movement, and decreased Ambrosio's relational thickness to the horizontal profile can predict treatment outcomes.
Article
Medicine, General & Internal
Minjie Chen, Bilian Ke, Jun Zou, Lan Gong, Yan Wang, Chaoran Zhang, Jianjiang Xu, Anji Wei, Jiaxu Hong
Summary: Both the isolated use of fluorometholone and combined use of azelastine and fluorometholone are effective in alleviating the signs and symptoms of severe ACD, but optimal response can be achieved with adjunctive treatment including azelastine.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Biophysics
Zicheng Lu, Tingting Liu, Xujiao Zhou, Yi Yang, Yanxiang Liu, Hong Zhou, Shanhong Wei, Zimeng Zhai, Yuqing Wu, Fan Sun, Zifei Wang, Tie Li, Jiaxu Hong
Summary: Dry eye disease (DED) is a common chronic eye disease that requires fast and reliable tools for diagnosis and monitoring. This study developed a biosensor based on silicon nanowire-based field-effect transistor (SiNW FET) for the quantitative measurement of MMP-9 in human tears. The biosensor demonstrated high agreement with enzyme-linked immunosorbent assay (ELISA) and showed good diagnostic sensitivity and specificity in real-world clinical settings.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Biochemistry & Molecular Biology
Jinghui Song, Liting Dong, Hanxiao Sun, Nan Luo, Qiang Huang, Kai Li, Xiaowen Shen, Zhe Jiang, Zhicong Lv, Luxin Peng, Meifang Zhang, Kun Wang, Ke Liu, Jiaxu Hong, Chengqi Yi
Summary: Researchers have developed a programmable RNA base editor called RESTART to reverse premature translation termination caused by nonsense mutations. RESTART utilizes an engineered guide snoRNA and the endogenous H/ACA box snoRNP machinery to achieve precise pseudouridylation, enabling functional PTC readthrough in disease-relevant contexts. The tool also demonstrates robust pseudouridylation in primary cells.
Article
Multidisciplinary Sciences
Jianhang Yin, Kailun Fang, Yanxia Gao, Liqiong Ou, Shaopeng Yuan, Changchang Xin, Weiwei Wu, Wei-wei Wu, Jiaxu Hong, Hui Yang, Jiazhi Hu
Summary: Ensuring genome safety is crucial for the clinical application of CRISPR-Cas9 toolbox. This study found that the use of Cas9TX can effectively reduce the occurrence of chromosomal translocations and AAV integration, making it a superior form of in vivo gene disruption.
NATURE COMMUNICATIONS
(2022)
Article
Medicine, General & Internal
Hong Zhang, Yuqing Wu, Xichen Wan, Yan Shen, Qihua Le, Pei Yang, Shuyun Zhou, Xujiao Zhou, Feng Zhou, Hao Gu, Jiaxu Hong
Summary: The study aimed to evaluate the efficacy and safety of eyelid hygiene using topical 0.01% hypochlorous acid (HOCL) through ultrasonic atomization after 2 weeks in patients with blepharitis. The results showed that the HOCL group demonstrated significant improvements in ocular surface disease index scores, lid margin redness, lid margin abnormalities, meibum expressibility, and meibum quality compared to the control group. The questionnaire confirmed good patient compliance with the treatment. In conclusion, topical 0.01% HOCL through ultrasonic atomization is a tolerable and effective eyelid hygiene treatment for blepharitis.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Medicine, General & Internal
Yinglei Zhang, Chunyan Hu, Cong Niu, Jiaxu Hong, Xujiao Zhou
Summary: This study investigated the effect of asiatic acid (AA) on the quantity and function of retinal ganglion cells (RGCs) in chronic glaucoma rat models and how AA regulates synaptic pathways. The rat model was created by electrocoagulation of the episcleral veins. AA reduced the loss of RGCs caused by chronic glaucoma, decreased excitatory neurotransmission to RGCs, and increased inhibitory neurotransmission.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Ophthalmology
Yue Li, Yuda Wei, Gang Li, Shiqian Huang, Jianjiang Xu, Qiurong Ding, Jiaxu Hong
Summary: This study developed a CRISPR/Cas9 system targeting the major HSV receptor NECTIN-1 on human corneal epithelial cells (HCECs). The knockdown of NECTIN-1 expression using this system successfully alleviated HSV infection in vitro. This provides a promising target for the treatment of herpes simplex keratitis (HSK).
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2022)