ArticleInvestigative ophthalmology & visual science2018
D-cis-Diltiazem Can Produce Oxidative Stress in Healthy Depolarized Rods In Vivo.
Article in Investigative ophthalmology & visual science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed, 18 citations in OpenAlex.
- Cav1.2 facilitates the binding and internalisation of porcine epidemic diarrhoea virus.Veterinary research · 2025Article
- Transducin-Deficient Rod Photoreceptors Evaluated With Optical Coherence Tomography and Oxygen Consumption Rate Energy Biomarkers.Investigative ophthalmology & visual science · 2022Article
- Functional Changes Within the Rod Inner Segment Ellipsoid in Wildtype Mice: An Optical Coherence Tomography and Electron Microscopy Study.Investigative ophthalmology & visual science · 2022Article
- Inherited Retinal Degeneration: PARP-Dependent Activation of Calpain Requires CNG Channel Activity.Biomolecules · 2022Article
- Retinitis Pigmentosa (RP): The Role of Oxidative Stress in the Degenerative Process Progression.Biomedicines · 2022Article
- Diltiazem inhibits SARS-CoV-2 cell attachment and internalization and decreases the viral infection in mouse lung.PLoS pathogens · 2022Article
- OCT imaging of rod mitochondrial respirationExperimental biology and medicine (Maywood, N.J.) · 2021Review
- Superoxide free radical spin-lattice relaxivity: A quench-assisted MR study.Magnetic resonance in medicine · 2021Article
- Photoreceptor cells and RPE contribute to the development of diabetic retinopathy.Progress in retinal and eye research · 2021Review
- Functional regulation of an outer retina hyporeflective band on optical coherence tomography images.Scientific reports · 2021Article
- Correcting QUEST Magnetic Resonance Imaging-Sensitive Free Radical Production in the Outer Retina In Vivo Does Not Correct Reduced Visual Performance in 24-Month-Old C57BL/6J Mice.Investigative ophthalmology & visual science · 2021Article
- Sildenafil-evoked photoreceptor oxidative stress in vivo is unrelated to impaired visual performance in mice.PloS one · 2021Article
- Rod Photoreceptor Neuroprotection in Dark-Reared Pde6brd10 Mice.Investigative ophthalmology & visual science · 2020Article
- Preventing diabetic retinopathy by mitigating subretinal space oxidative stressVisual neuroscience · 2020Review
- Novel imaging biomarkers for mapping the impact of mild mitochondrial uncoupling in the outer retina in vivo.PloS one · 2020Article
- Outer Retinal Oxidative Stress Measured In Vivo Using QUEnch-assiSTed (QUEST) OCT.Investigative ophthalmology & visual science · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 3 institutions in 1 country.
Funding
Abstract
Purpose: New perspectives are needed to understand decades of contradictory reports on the neuroprotective effects of the Cav1.2 L-type calcium channel blocker d-cis-diltiazem in retinitis pigmentosa (RP) models. Here, we address, in vivo, the following two knowledge gaps regarding d-cis-diltiazem's actions in the murine outer retina: (1) do normal mouse rods contain d-cis-diltiazem-insensitive Cav1.2 L-type calcium channels? (2) Can d-cis-diltiazem modify the normal rod redox environment? Methods: First, transretinal Cav1.2 L-type calcium channels were noninvasively mapped with manganese-enhanced magnetic resonance imaging (MRI) following agonist Bay K 8644 in C57BL/6 (B6) and in Cav1.2 L-type calcium channel BAY K 8644-insensitive mutant B6 mice. Second, d-cis-diltiazem-treated oxidative stress-vulnerable (B6) or -resistant [129S6 (S6)] mice were examined in vivo (QUEnch-assiSTed [QUEST] MRI) and in whole retina ex vivo (lucigenin). Retinal thickness was measured using MRI. Results: The following results were observed: (1) manganese uptake patterns in BAY K 8644-treated controls and mutant mice identified in vivo Cav1.2 L-type calcium channels in inner and outer retina; and (2) d-cis-diltiazem induced rod oxidative stress in dark-adapted B6 mice but not in light-adapted B6 mice or dark-adapted S6 mice (QUEST MRI). Oxidative stress in vivo was limited to inferior outer retina in dark-adapted B6 mice approximately 1-hour post d-cis-diltiazem. By approximately 4 hours post, only superior outer retina oxidative stress was observed and whole retinal superoxide production was supernormal. All groups had unremarkable retinal thicknesses. Conclusions: D-cis-diltiazem's unexpectedly complex spatiotemporal outer retinal oxidative stress pattern in vivo was dependent on genetic background and rod membrane depolarization, but not apparently dependent on Cav1.2 L-type calcium channels, providing a potential rationale for contradictory results in different RP models.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.