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Kubota S, Shimomine S, Kadoh Y, Tanito M. Intraocular Pressure Changes in Non-Surgical Eyes of Patients Admitted for Glaucoma Surgery. J Clin Med 2024; 13:4511. [PMID: 39124777 PMCID: PMC11312494 DOI: 10.3390/jcm13154511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/26/2024] [Accepted: 07/31/2024] [Indexed: 08/12/2024] Open
Abstract
(1) Background: In glaucoma patients, it is observed that intraocular pressure (IOP) in non-surgical eyes decreases during hospitalization, but detailed data have not been reported. This study aimed to examine changes in IOP in the non-surgical eyes of patients admitted for glaucoma surgery. (2) Methods: This retrospective study included 487 patients (254 males, 233 females). Statistical analysis was performed separately for groups that were and were not under medication treatment. (3) Results: In non-surgical eyes, the difference in IOP between admission and discharge was -1.6 ± 4.8 mmHg (95% confidence interval (CI), -2.1 to -1.2; p < 0.0001) with a significant decrease in the medication group (n = 414), while it was -0.6 ± 4.8 mmHg with no significant change observed (95% confidence interval (CI), -1.7 to 0.57; p = 0.33) in the non-medication group (n = 73). Multiple regression analysis of the medication group showed that IOP at admission (p < 0.0001) and older age (p = 0.03) were associated with the reduction or the rate of reduction in IOP. (4) Conclusions: IOP in the non-surgical eyes of patients admitted for glaucoma surgery with medication decreased during hospitalization. The reduction was more pronounced in individuals with higher IOP at admission and in older patients. It is possible that improved medication adherence contributes to the lowering of IOP.
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Affiliation(s)
| | | | | | - Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo 693-8501, Japan (Y.K.)
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2
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Nicou CM, Passaglia CL. Effect of Ambient Lighting on Intraocular Pressure Rhythms in Rats. Invest Ophthalmol Vis Sci 2024; 65:16. [PMID: 39115866 PMCID: PMC11314632 DOI: 10.1167/iovs.65.10.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 07/21/2024] [Indexed: 08/11/2024] Open
Abstract
Purpose The purpose of this study was to determine the effects of ambient lighting on intraocular pressure (IOP) rhythmicity and variability. Methods IOP was continuously recorded by wireless telemetry from rats under light/dark (LD), dark/light (DL), asymmetric (6L18D and 18D6L), constant dark (DD), and constant light (LL) cycles. In some DD experiments, 1-hour light pulses were presented at varying times. IOP rhythmicity and variability were respectively quantified via cosinor analysis and peak detection algorithms that identified transient and sustained fluctuations. Results Rat IOP peaked at night and troughed during the day with LD amplitude of 8.7 ± 3.4 mm Hg. Rhythmicity persisted in DD and LL with a free-running period of 24.1 ± 0.3 and 25.2 ± 0.4 hours, respectively. Peak-to-trough amplitude was approximately 60% smaller in LL, often disappeared after 1 to 2 weeks as daytime IOP drifted 2.6 ± 1.5 mm Hg higher, and returned to approximately 60% larger in LD. Rhythmicity was similarly impacted but resynchronized to DL over 4 to 6 days. Rhythmicity was unaltered by short photoperiods (6L18D), but the nocturnal IOP elevation was markedly shortened by long photoperiods (18L6D) and temporarily lowered to daytime levels by light pulses during the subjective night. Transient and sustained event rate, amplitude, interval, and energy content were nearly identical in LD, DD, and LL. Conclusions Aqueous humor dynamics of rat eyes are intrinsically configured to set IOP at daytime levels. Circadian clock input modulates these dynamics to elevate IOP at night. Light at night blocks this input, sending IOP back to daytime levels. Effects of abnormal lighting on IOP rhythmicity may contribute to pressure-related ocular neuropathies.
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Affiliation(s)
- Christina M. Nicou
- Medical Engineering Department, University of South Florida, Tampa, Florida, United States
| | - Christopher L. Passaglia
- Medical Engineering Department, University of South Florida, Tampa, Florida, United States
- Ophthalmology Department, University of South Florida, Tampa, Florida, United States
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3
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Ikegami K. Circadian rhythm of intraocular pressure. J Physiol Sci 2024; 74:14. [PMID: 38431563 PMCID: PMC10908160 DOI: 10.1186/s12576-024-00905-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/04/2024] [Indexed: 03/05/2024]
Abstract
Intraocular pressure (IOP) plays a crucial role in glaucoma development, involving the dynamics of aqueous humor (AH). AH flows in from the ciliary body and exits through the trabecular meshwork (TM). IOP follows a circadian rhythm synchronized with the suprachiasmatic nucleus (SCN), the circadian pacemaker. The SCN resets peripheral clocks through sympathetic nerves or adrenal glucocorticoids (GCs). IOP's circadian rhythm is governed by circadian time signals, sympathetic noradrenaline (NE), and GCs, rather than the local clock. The activity of Na+/K+-ATPase in non-pigmented epithelial cells in the ciliary body can influence the nocturnal increase in IOP by enhancing AH inflow. Conversely, NE, not GCs, can regulate the IOP rhythm by suppressing TM macrophage phagocytosis and AH outflow. The activation of the β1-adrenergic receptor (AR)-mediated EPAC-SHIP1 signal through the ablation of phosphatidylinositol triphosphate may govern phagocytic cup formation. These findings could offer insights for better glaucoma management, such as chronotherapy.
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Affiliation(s)
- Keisuke Ikegami
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
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Shin DY, Park HYL, Shin H, Oh SE, Kim SA, Jung Y, Lee MY, Park CK. Fluctuation of Intraocular Pressure and Vascular Factors Are Associated With the Development of Epiretinal Membrane in Glaucoma. Am J Ophthalmol 2023; 254:69-79. [PMID: 37327957 DOI: 10.1016/j.ajo.2023.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/18/2023]
Abstract
PURPOSE To identify factors associated with the development of epiretinal membranes (ERM) in glaucoma patients. DESIGN Multicenter, propensity-score matched, case-control study. METHODS One hundred ninety-two eyes of 192 patients with glaucoma from the Catholic Medical Center Glaucoma Suspect Cohort Study were analyzed. We identified 64 eyes who developed ERM from the cohort, and 128 eyes without ERM were selected by propensity score matching (1:2) according to baseline age and mean deviation (MD) of the visual field (VF). Demographic, systemic, and ocular characteristics were determined at baseline. Intraocular pressure (IOP) was measured, including baseline, mean IOP, and IOP fluctuation. Early-stage ERM, defined as translucent membrane with no underlying retinal distortion, was detected by fundus photography and optical coherence tomography. Central VF progression was considered when new VF defets developed in one either or both hemifields or when there was an increase of 3 or more abnormal points within 12 points of central 10° fixation. Autonomic nervous system status was evaluated by heart rate variability. RESULTS Patients who developed ERM were more frequently receiving medication for systemic hypertension and had higher systolic blood pressure, greater IOP fluctuation, more frequent disc hemorrhage (DH), worse VF MD, and a higher rate of central VF progression than patients without ERM. Additionally, patients with early glaucoma who developed ERM had higher rate of autonomic imbalance while patients with moderate-to-advanced glaucoma who developed ERM had greater baseline and peak IOP and worse MD of the last follow-up VF (MD < 6.0 dB). Older age (P = .048), medication for systemic hypertension (P < .001), IOP fluctuation (P < .001), presence of DH (P < .001), and worse last MD of VF (P = .033) were significantly associated with ERM in Cox proportional hazard analysis. CONCLUSIONS Early stage of ERMs in glaucomatous eyes are significantly associated with glaucoma progression, medication of systemic hypertension, presence of DH, and IOP fluctuation. These suggest that glaucoma patients who develop early stage of ERMs should be carefully monitored in terms of IOP fluctuation, vascular factors, and glaucoma progression.
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Affiliation(s)
- Da Young Shin
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.); Eunpyeong St. Mary's Hospital (D.Y.S.)
| | - Hae-Young Lopilly Park
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.).
| | - Heejong Shin
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.); Seoul St. Mary's Hospital (H.-Y.L.P., H.S., S.E.O., S.A.K., C.K.P.)
| | - Si Eun Oh
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.)
| | - Seong Ah Kim
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.); Seoul St. Mary's Hospital (H.-Y.L.P., H.S., S.E.O., S.A.K., C.K.P.)
| | - Younhea Jung
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.); Yeouido St. Mary's Hospital (Y.J.)
| | - Mee Yon Lee
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.); Uijeongbu St. Mary's Hospital (M.Y.L.), Seoul, South Korea
| | - Chan Kee Park
- From the Department of Ophthalmology, The Catholic University of Korea (D.Y.S., H.-Y.L.P., H.S., S.E.O., S.A.K., Y.J., M.Y.L., C.K.P.); Seoul St. Mary's Hospital (H.-Y.L.P., H.S., S.E.O., S.A.K., C.K.P.)
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Yu M, Sun X, Zeng F, Gao X, Li Z, Yuan G, Wang T. The short-term effects of blood donation on the ocular parameters including blood flow of the retina and choroid in healthy people using OCT- angiography. BMC Ophthalmol 2023; 23:259. [PMID: 37303035 DOI: 10.1186/s12886-023-03002-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 05/30/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND To investigate the short-term effects of blood donation on the morphology and blood flow of the retina and choroid in healthy people using optical coherence tomography angiography (OCTA). METHODS Twenty-eight healthy blood donors (56 eyes) who participated in the 200 ml voluntary blood donation between March 2, 2021 and January 20, 2022 were included. The best corrected visual acuity (BCVA), systolic (SBP) and diastolic blood pressure (DBP), intraocular pressure (IOP), subfoveal choroid thickness (SFCT), retinal thickness (RT), retinal superficial vascular density (SVD), deep vascular density (DVD) and foveal avascular were a (FAZ) were measured and statistically analysed 10 min before, 30 min and 24 h after the blood donation. RESULTS The 200 ml blood donation could cause significant IOP reduction at 24 h (P = 0.006), which was negatively correlated with SBP (r = -0.268, P = 0.046), while SBP, DBP, or ocular perfusion pressure were not affected (> 0.05). Moreover, no significant difference existed in the OCT and OCTA indexes, including SFCT, RT, SVD, DVD, and FAZ, before and after the 200 ml blood donation (P > 0.05). The visual acuity was not affected either (P > 0.05). CONCLUSIONS The 200 ml blood donation was noted to be associated with statistically significant IOP reduction at 24 h, while SBP, DBP, or OPP was not affected. The blood flow of the retina and choroid or the visual acuity did not change significantly after the blood donation. Larger studies with different volumes of blood donation were needed to further analysis the effect of blood donation on ocular parameters.
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Affiliation(s)
- Mengmeng Yu
- Department of Ophthalmology, Eye Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Jinan, China
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Xiaolei Sun
- Department of Ophthalmology, Eye Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Jinan, China
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Fanxing Zeng
- Department of Ophthalmology, Eye Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Jinan, China
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Xiang Gao
- Department of Ophthalmology, Eye Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Jinan, China
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Zhenzhen Li
- Department of Ophthalmology, Eye Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Jinan, China
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Gongqiang Yuan
- Department of Ophthalmology, Eye Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Jinan, China.
- School of Ophthalmology, Shandong First Medical University, Jinan, China.
| | - Ting Wang
- Department of Ophthalmology, Eye Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Jinan, China.
- School of Ophthalmology, Shandong First Medical University, Jinan, China.
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Ma S, Chen Y, Quan P, Zhang J, Han S, Wang G, Qi R, Zhang X, Wang F, Yuan J, Yang X, Jia W, Qin W. NPAS2 promotes aerobic glycolysis and tumor growth in prostate cancer through HIF-1A signaling. BMC Cancer 2023; 23:280. [PMID: 36978001 PMCID: PMC10045944 DOI: 10.1186/s12885-023-10685-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/28/2023] [Indexed: 03/30/2023] Open
Abstract
BACKGROUND Prostate cancer (PCa), one of the common malignant tumors, is the second leading cause of cancer-related deaths in men. The circadian rhythm plays a critical role in disease. Circadian disturbances are often found in patients with tumors and enable to promote tumor development and accelerate its progression. Accumulating evidence suggests that the core clock gene NPAS2 (neuronal PAS domain-containing protein 2) has been implicated in tumors initiation and progression. However, there are few studies on the association between NPAS2 and prostate cancer. The purpose of this paper is to investigate the impact of NPAS2 on cell growth and glucose metabolism in prostate cancer. METHODS Quantitative real-time PCR (qRT-PCR), immunohistochemical (IHC) staining, western blot, GEO (Gene Expression Omnibus) and CCLE (Cancer Cell Line Encyclopedia) databases were used to analyze the expression of NPAS2 in human PCa tissues and various PCa cell lines. Cell proliferation was assessed using MTS, clonogenic assays, apoptotic analyses, and subcutaneous tumor formation experiments in nude mice. Glucose uptake, lactate production, cellular oxygen consumption rate and medium pH were measured to examine the effect of NPAS2 on glucose metabolism. The relation of NPAS2 and glycolytic genes was analyzed based on TCGA (The Cancer Genome Atlas) database. RESULTS Our data showed that NPAS2 expression in prostate cancer patient tissue was elevated compared with that in normal prostate tissue. NPAS2 knockdown inhibited cell proliferation and promoted cell apoptosis in vitro and suppressed tumor growth in a nude mouse model in vivo. NPAS2 knockdown led to glucose uptake and lactate production diminished, oxygen consumption rate and pH elevated. NPAS2 increased HIF-1A (hypoxia-inducible factor-1A) expression, leading to enhanced glycolytic metabolism. There was a positive correlation with the expression of NPAS2 and glycolytic genes, these genes were upregulated with overexpression of NPAS2 while knockdown of NPAS2 led to a lower level. CONCLUSION NPAS2 is upregulated in prostate cancer and promotes cell survival by promoting glycolysis and inhibiting oxidative phosphorylation in PCa cells.
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Affiliation(s)
- Shuaijun Ma
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Yafan Chen
- Department of Human Movement Science, Xi'an Physical Education University, Xi'an, China
| | - Penghe Quan
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Jingliang Zhang
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Shichao Han
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Guohui Wang
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Ruochen Qi
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Xiaoyan Zhang
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Fuli Wang
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China
| | - Jianlin Yuan
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China.
| | - Xiaojian Yang
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China.
| | - Weijing Jia
- Department of Hematology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China.
| | - Weijun Qin
- Department of Urology, The First Affiliated Hospital of Air Force Medical University, 127 Changle West Road, 710032, Xi 'an, Shaanxi, China.
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7
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Zhang A, Wang Q, Yang X, Liu Y, He J, Shan A, Sun N, Liu Q, Yao B, Liang F, Yang Z, Yan X, Bo S, Liu Y, Mao H, Chen X, Tang NJ, Yan H. Impacts of heatwaves and cold spells on glaucoma in rural China: a national cross-sectional study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:47248-47261. [PMID: 36737565 PMCID: PMC10097786 DOI: 10.1007/s11356-023-25591-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023]
Abstract
China faces increasing health risks from climate change. The structure and function of the eye and vision were affected by extreme heat and cold. The study aimed to evaluate the impacts of heatwaves and cold spells on glaucoma. A national cross-sectional study of the Rural Epidemiology for Glaucoma (REG-China) was conducted in ten provinces of China, and 36,081 adults aged 40 years or more were included. Glaucoma signs were assessed via a standard examination. A total of 15 heatwave definitions, based on intensity (95th to 99th percentiles of temperature distribution) and duration (≥2 days, 3 days, and 4 days), were used to quantify heatwave effects, and 6 cold spell definitions were defined based on threshold temperature percentile (5th and 10th) and duration (3 days, 5 days, and 9 days). Multivariable-adjusted logistic regression models paired with interaction analysis were performed to investigate the impacts of heatwaves and cold spells on glaucoma, and the dose-response relationships were assessed using a restricted cubic spline (RCS) model. Subgroup analysis was conducted stratified by gender, age, smoking status, occupation, and family history of glaucoma. The overall prevalence of glaucoma was 2.1% (95% CI 1.94-2.25%). Higher heatwaves were significantly correlated with higher OR of glaucoma, with the OR (95% CI) ranging from 1.014 (1.009, 1.018) to 1.090 (1.065, 1.115) by different definitions. Glaucoma was affected by heatwaves more strongly than by cold spells. The effects of both heatwaves and cold spells were higher in males than females and in smokers than nonsmokers. These results of the present study evoked the attention of prospective research to elucidate the relationship between extreme temperatures and eye diseases.
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Affiliation(s)
- Ai Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Qihua Wang
- Department of Ophthalmology, Tianjin Medical University General Hospital, Tianjin Key Laboratory of Ocular Trauma, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China.,Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Xueli Yang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Yuanyuan Liu
- Department of Ophthalmology, Tianjin Medical University General Hospital, Tianjin Key Laboratory of Ocular Trauma, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Jiayu He
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Anqi Shan
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Naixiu Sun
- Tianjin Key Laboratory of Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Qianfeng Liu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Baoqun Yao
- Department of Ophthalmology, Tianjin Medical University General Hospital, Tianjin Key Laboratory of Ocular Trauma, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Fengchao Liang
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen, China
| | - Ze Yang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Xiaochang Yan
- National School of Development, Peking University, Beijing, China
| | - Shaoye Bo
- China Foundation for Disabled Persons, Dongcheng District, Beijing, China
| | - Yang Liu
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Hongjun Mao
- Tianjin Key Laboratory of Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Xi Chen
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Nai-Jun Tang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Hua Yan
- Department of Ophthalmology, Tianjin Medical University General Hospital, Tianjin Key Laboratory of Ocular Trauma, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China. .,School of Medicine, Nankai University, Tianjin, China.
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8
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Mohamed Y, Passaglia CL. A portable feedback-controlled pump for monitoring eye outflow facility in conscious rats. PLoS One 2023; 18:e0280332. [PMID: 36630474 PMCID: PMC9833506 DOI: 10.1371/journal.pone.0280332] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 12/27/2022] [Indexed: 01/12/2023] Open
Abstract
Intraocular pressure (IOP) is heavily influenced by the resistance of trabecular outflow pathways through which most of the aqueous humor produced by the eye continuously drains. The standard method of quantifying outflow resistance and other aspects of ocular fluid dynamics is eye cannulation, which allows for direct measurement and manipulation of IOP and flow in animal models. Since the method is invasive, indirect techniques that are slower and less accurate must be used for chronological studies. A novel technology is introduced that can autonomously measure outflow facility in conscious rats multiple times a day. A smart portable micropump infuses fluid into the eye through a permanently-implanted cannula and dynamically adjusts flow rate using a unique proportional feedback algorithm that sets IOP to a target level, even though IOP fluctuates erratically in awake free-moving animals. Pressure-flow data collected by the system from anesthetized rats were validated against intraocular recordings with commercial pressure and flow sensors. System and sensor estimates of outflow facility were indistinguishable, averaging 23 ± 3 nl·min-1·mmHg-1 across animals (n = 11). Pressure-flow data were then collected round-the-clock for several days from conscious rats, while outflow facility was measured every few hours. A significant diurnal facility rhythm was observed in every animal (n = 4), with mean daytime level of 22 ± 10 nl·min-1·mmHg-1 and mean nighttime level of 15 ± 7 nl·min-1·mmHg-1. The rhythm correlated with diurnal changes in IOP and likely contributed prominently to those changes based on the day-night swing in facility magnitude. Hence, the portable smart pump offers a unique tool for repeated long-term monitoring of outflow facility and other possible parameters of ocular health. It could also be useful in animal glaucoma studies for reversibly inducing acute or chronic ocular hypertension without explicitly damaging trabecular outflow pathways.
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Affiliation(s)
- Youssef Mohamed
- Department of Medical Engineering, University of South Florida, Tampa, FL, United States of America
| | - Christopher L. Passaglia
- Department of Medical Engineering, University of South Florida, Tampa, FL, United States of America
- Department of Ophthalmology, University of South Florida, Tampa, FL, United States of America
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Nakai H, Tsuchiya Y, Koike N, Asano T, Ueno M, Umemura Y, Sasawaki Y, Ono R, Hamuro J, Sotozono C, Yagita K. Comprehensive Analysis Identified the Circadian Clock and Global Circadian Gene Expression in Human Corneal Endothelial Cells. Invest Ophthalmol Vis Sci 2022; 63:16. [PMID: 35579906 PMCID: PMC9123520 DOI: 10.1167/iovs.63.5.16] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To investigate circadian clock oscillation and circadian global gene expression in cultured human corneal endothelial cells (cHCECs) to elucidate and assess the potential function of circadian regulation in HCECs. Methods In this study, we introduced a circadian bioluminescence reporter, Bmal1:luciferase (Bmal1:luc), into cHCECs and subsequently monitored real-time bioluminescence rhythms. RNA-sequencing data analysis was then performed using sequential time-course samples of the cHCECs to obtain a comprehensive understanding of the circadian gene expression rhythms. The potential relevance of rhythmically expressed genes was then assessed by systematic approaches using functional clustering and individual gene annotations. Results Bmal1:luc bioluminescence exhibited clear circadian oscillation in the cHCECs. The core clock genes and clock-related genes showed high-amplitude robust circadian messenger RNA (mRNA) expression rhythms in cHCECs after treatment with dexamethasone, and 329 genes that exhibited circadian mRNA expression rhythms were identified (i.e., genes involved in various physiological processes including glycolysis, mitochondrial function, antioxidative systems, hypoxic responses, apoptosis, and extracellular matrix regulation, which represent the physiological functions of HCECs). Conclusions Our findings revealed that cHCECs have a robust and functional circadian clock, and our discovery that a large number of genes exhibit circadian mRNA expression rhythms in cHCECs suggests a potential contribution of circadian regulation to fine-tune HCEC functions for daily changes in the environment.
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Affiliation(s)
- Hiroko Nakai
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshiki Tsuchiya
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Nobuya Koike
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Taiki Asano
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Morio Ueno
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuhiro Umemura
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuh Sasawaki
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ryutaro Ono
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Junji Hamuro
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Chie Sotozono
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiro Yagita
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan
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10
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Ikegami K, Masubuchi S. Suppression of trabecular meshwork phagocytosis by norepinephrine is associated with nocturnal increase in intraocular pressure in mice. Commun Biol 2022; 5:339. [PMID: 35396348 PMCID: PMC8993819 DOI: 10.1038/s42003-022-03295-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 03/17/2022] [Indexed: 11/18/2022] Open
Abstract
Intraocular pressure (IOP) is an important factor in glaucoma development, which involves aqueous humor (AH) dynamics, with inflow from the ciliary body and outflow through the trabecular meshwork (TM). IOP has a circadian rhythm entrained by sympathetic noradrenaline (NE) or adrenal glucocorticoids (GCs). Herein, we investigated the involvement of GC/NE in AH outflow. Pharmacological prevention of inflow/outflow in mice indicated a diurnal outflow increase, which was related to TM phagocytosis. NE showed a non-self-sustained inhibition in phagocytosis of immortalized human TM cells, but not GC. The pharmacological and reverse genetic approaches identified β1-adrenergic receptor (AR)-mediated exchange proteins directly activated by cyclic adenosine monophosphate (EPAC)-SHIP1 signal activation by ablation of phosphatidylinositol triphosphate, regulating phagocytic cup formation. Furthermore, we revealed the phagocytosis involvement in the β1-AR-EPAC-SHIP1-mediated nocturnal IOP rise in mice. These suggest that TM phagocytosis suppression by NE can regulate IOP rhythm through AH outflow. This discovery may aid glaucoma management.
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Affiliation(s)
- Keisuke Ikegami
- Department of Physiology, School of Medicine, Aichi Medical University, 1-1 Yazako-karimata, Nagakute, Aichi, 480-1195, Japan.
| | - Satoru Masubuchi
- Department of Physiology, School of Medicine, Aichi Medical University, 1-1 Yazako-karimata, Nagakute, Aichi, 480-1195, Japan
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11
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Shi SQ, Mahoney CE, Houdek P, Zhao W, Anderson MP, Zhuo X, Beaudet A, Sumova A, Scammell TE, Johnson CH. Circadian Rhythms and Sleep Are Dependent Upon Expression Levels of Key Ubiquitin Ligase Ube3a. Front Behav Neurosci 2022; 16:837523. [PMID: 35401134 PMCID: PMC8989470 DOI: 10.3389/fnbeh.2022.837523] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Normal neurodevelopment requires precise expression of the key ubiquitin ligase gene Ube3a. Comparing newly generated mouse models for Ube3a downregulation (models of Angelman syndrome) vs. Ube3a upregulation (models for autism), we find reciprocal effects of Ube3a gene dosage on phenotypes associated with circadian rhythmicity, including the amount of locomotor activity. Consistent with results from neurons in general, we find that Ube3a is imprinted in neurons of the suprachiasmatic nuclei (SCN), the pacemaking circadian brain locus, despite other claims that SCN neurons were somehow exceptional to these imprinting rules. In addition, Ube3a-deficient mice lack the typical drop in wake late in the dark period and have blunted responses to sleep deprivation. Suppression of physical activity by light in Ube3a-deficient mice is not due to anxiety as measured by behavioral tests and stress hormones; quantification of stress hormones may provide a mechanistic link to sleep alteration and memory deficits caused by Ube3a deficiency, and serve as an easily measurable biomarker for evaluating potential therapeutic treatments for Angelman syndrome. We conclude that reduced Ube3a gene dosage affects not only neurodevelopment but also sleep patterns and circadian rhythms.
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Affiliation(s)
- Shu-qun Shi
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, United States
| | - Carrie E. Mahoney
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Pavel Houdek
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
| | - Wenling Zhao
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Matthew P. Anderson
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, United States
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Xinming Zhuo
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
| | | | - Alena Sumova
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
| | - Thomas E. Scammell
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Carl Hirschie Johnson
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, United States
- *Correspondence: Carl Hirschie Johnson,
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Bery A, Bagchi U, Bergen AA, Felder-Schmittbuhl MP. Circadian clocks, retinogenesis and ocular health in vertebrates: new molecular insights. Dev Biol 2022; 484:40-56. [DOI: 10.1016/j.ydbio.2022.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/21/2022] [Accepted: 02/01/2022] [Indexed: 12/22/2022]
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13
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Hanna J, Yücel YH, Zhou X, Kim N, Irving H, Gupta N. Beta-adrenergic glaucoma drugs reduce lymphatic clearance from the eye: A sequential photoacoustic imaging study. Exp Eye Res 2021; 212:108775. [PMID: 34599970 DOI: 10.1016/j.exer.2021.108775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 09/05/2021] [Accepted: 09/24/2021] [Indexed: 11/20/2022]
Abstract
Our study aims to determine whether the beta-adrenergic system is involved in the regulation of lymphatic drainage from the eye. For this purpose, we assessed the effect of 2 topical beta-adrenergic blockers, timolol and betaxolol, commonly used as glaucoma drugs, on lymphatic clearance of albumin from the aqueous humor to neck lymph nodes. Adult mice were treated with either topical timolol, a non-selective β-blocker, 0.5% (n = 8), or topical betaxolol, a selective β1-adrenergic blocker, 0.5% (n = 6) twice daily for 14 days and compared to respective control groups (n = 5 and n = 7). Changes in lymphatic clearance from the eye were assessed using a quantitative in vivo photoacoustic imaging approach. In all subjects, right eye and neck lymph nodes were longitudinally assessed by sequential photoacoustic imaging just prior to near-infrared dye injection into the anterior chamber of the eye, and 20 min, 2 and 4 h after injection. Repeat measurements of mean pixel intensities (MPIs) of right eyes and nodes were performed at all timepoints. The areas under the curves (AUC) were calculated and the AUC of the treated-group was compared to that of controls using the Mann-Whitney U test. The slopes of MPI of each region of interest over time were compared using the linear mixed model after adjusting for IOP decrease after treatment and other parameters such as sex and body weight. In the timolol-treated group, right neck nodes showed significant decrease in AUC signal intensity compared with controls (P = 0.003), and significant decrease in slope of MPI compared with controls (P = 0.0025). In the betaxolol-treated group, right neck nodes showed significant decrease in AUC signal intensity compared with controls (P = 0.02), and significant decrease in slope of MPI compared with controls (P = 0.0069). Topical treatment with timolol and betaxolol reduced lymphatic clearance of albumin from the aqueous humor to the neck lymph nodes. This finding may be relevant for the management of secondary glaucomas and inflammatory eye disease in which the clearance of accumulated proteins and antigen from the eye is important to disease recovery and sight protection. This study suggests that the beta-adrenergic system plays a role in the regulation of lymphatic clearance from the eye.
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Affiliation(s)
- Joseph Hanna
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology and Vision Sciences, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Yeni H Yücel
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology and Vision Sciences, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada; Department of Physics, Faculty of Science, Ryerson University, Toronto, Ontario, Canada; Faculty of Engineering and Architectural Science, Ryerson University, Toronto, Ontario, Canada; Institute of Biomedical Engineering, Science and Technology (iBEST), St. Michael's Hospital, Ryerson University, Toronto, Ontario, Canada
| | - Xun Zhou
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Department of Ophthalmology and Vision Sciences, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Nayeon Kim
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Hyacinth Irving
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Neeru Gupta
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology and Vision Sciences, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Ontario, Canada; Glaucoma and Nerve Protection Unit, St. Michael's Hospital, Toronto, Ontario, Canada.
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Zhong X, Li Y, Huang C, Ng TK, Weng L, Zhang J, Zhang M, Huang Y. Seasonal variations and climatic factors on acute primary angle-closure admission in southern China: a 5-year hospital-based retrospective study. Acta Ophthalmol 2021; 99:e761-e768. [PMID: 33124157 DOI: 10.1111/aos.14649] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/25/2020] [Indexed: 02/05/2023]
Abstract
PURPOSE To delineate the seasonality of acute primary angle-closure (APAC) admission in a coastal city of southern China and its association with climatic factors. METHODS A total of 1155 Chinese subjects with principal diagnosis of APAC attack were recruited from 2012 to 2016, and their medical records were retrieved. Monthly climatic factors were obtained from the Meteorological Bureau of Shantou. Monthly and seasonal APAC admissions were compared, and its correlation with climatic factors was evaluated. RESULTS APAC admission was higher in female subjects (75.9%) with an overall mean age of 64.7 ± 9.3 years. APAC admission was highest in summer with the peak onset in June. The peak of APAC admission for female subjects aged ≤ 65 years was in June, and that for> 65 years was in July. The peak of APAC admission for male subjects aged > 65 years was in August. Precipitation was positively correlated with APAC admission rate for both aged ≤ 65 (β = 0.415, p = 0.001) and > 65 years old (β = 0.364, p = 0.004) female subjects. In contrast, surface temperature was positively correlated with APAC admission rate for male subjects aged > 65 years (β = 0.441, p < 0.001). No climatic factor was correlated with APAC admission rate for male subjects ≤ 65 years. CONCLUSIONS This study revealed the peak season of APAC admission in summer, and surface temperature and precipitation are the associated factors. Close monitoring of climate changes could help to reduce the incidence of APAC attack.
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Affiliation(s)
- Xin Zhong
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yan Li
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Chukai Huang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Limei Weng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Jing Zhang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Mingzhi Zhang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yuqiang Huang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
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