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Objective: To investigate the effects of manual acupuncture (MA) on the signal transduction and activator of transcription (STAT)3 - matrix metalloproteinase (MMP)-2 pathway in a guinea pig model of lens-induced myopia (LIM).
Methods: A total of 36 male pigmented guinea pigs (aged 2 weeks) were randomly assigned to the normal control (NC) (n = 12), LIM (n = 12) and LIM + MA (n = 12) groups. The NC group received no intervention. To create myopia, the right eyes of the LIM and LIM + MA groups were covered with -6.00 D lenses. The LIM + MA group received 30 min of acupuncture stimulation daily at and LI4. The effect of LIM modelling and MA on ocular measurements, expression of STAT3, phosphorylated (p)-STAT3, MMP-2 and tissue inhibitor of MMP-2 (TIMP)-2 expression (as well as histopathology, morphology and immunohistochemistry of the guinea pigs' eyes) were evaluated.
Results: Compared with the NC group, the LIM group showed increased expression of STAT3, p-STAT3 and MMP-2, and decreased expression of TIMP-2, as well as an increase in ocular measurements. The eye tissue morphology was disrupted and fibres became thinner in the LIM group. Compared to the LIM group, the LIM + MA group exhibited a noteworthy decline in the expression of STAT3, p-STAT3 and MMP-2, a significant increase in TIMP-2, and a decrease in ocular measurements and tissue morphology, which were similar to that of the NC group.
Conclusion: Acupuncture has the potential to decrease STAT3 activation and block the STAT3-MMP-2 pathway in the ocular tissue of guinea pigs with experimental LIM, thereby delaying the development of myopia.
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http://dx.doi.org/10.1177/09645284251345847 | DOI Listing |
Proc Natl Acad Sci U S A
September 2025
Department of Evolutionary Ecology, Leibniz Institute for Zoo and Wildlife Research, Berlin 10315, Germany.
Animals can improve their decision-making abilities by integrating information from multiple senses, which is especially beneficial when living in fluctuating environments. However, understanding how wild predators may use multimodal sensing when hunting prey in split-second interactions remains largely unexplored. As nocturnal hunters, bats rely on echolocation to navigate and to locate evasive prey, yet they have retained functional vision, despite the associated costs.
View Article and Find Full Text PDFJ Vis Exp
August 2025
Marianne Bernadotte Centrum, Department for Clinical Neuroscience, Karolinska Institutet; St Erik Eye Hospital.
The present protocol evaluates the relative impact of visual and vestibular inputs during roll plane rotations using optokinetic, vestibular, and combined visuovestibular stimulations. Subjects underwent isolated visual rotations, whole-body vestibular rotations in darkness, and visuovestibular stimulations combining static visual scenes with head rotations. Dynamic and static eye movement gains, absolute amplitudes, velocities, and accelerations were measured alongside perceptual responses.
View Article and Find Full Text PDFCureus
August 2025
Department of Oncology, University of Warmia and Mazury in Olsztyn, Olsztyn, POL.
Management of recurrent adenoid cystic carcinoma (ACC) in elderly patients remains challenging due to comorbidities, functional impairments, and anatomically complex tumor locations that complicate surgical access and increase operative risk. The ZAP-X Gyroscopic Radiosurgery System (ZAP Surgical Systems, Inc., San Carlos, CA, USA) offers a highly precise, non-invasive treatment modality, potentially suitable for salvage therapy in previously irradiated fields and in medically inoperable patients.
View Article and Find Full Text PDFFront Pediatr
August 2025
Department of Ophthalmology, Peking University People's Hospital, Beijing, China.
Background: The m.3243A>G mutation in the MT-TL1 gene is the most common mtDNA mutation. The mutation can lead to a spectrum of conditions, including diabetes, hearing loss, heart and muscle involvement, encephalopathy and epilepsy, gastrointestinal problems, and vision impairment, often occurring concurrently-collectively referred to as MELAS (mitochondrial encephalopathy lactic acidosis and stroke-like episodes) syndrome.
View Article and Find Full Text PDFJ Inflamm Res
September 2025
Department of Optometry, School of Health and Welfare, Dongshin University, Naju, Korea.
Objective: To evaluate the therapeutic efficacy and inflammatory modulatory effects of combined 0.01% atropine eye drops and orthokeratology (OK) lenses in controlling myopia progression among adolescent patients.
Methods: This retrospective study analyzed clinical data from 90 adolescent patients (90 eyes) with myopia treated from April 2021 to June 2023.