scholarly journals Association of metformin use among diabetics and the incidence of primary open-angle glaucoma – The Chennai Eye Disease Incidence Study

2021 ◽  
Vol 69 (11) ◽  
pp. 3336
Author(s):  
Lingam Vijaya ◽  
Ronnie George ◽  
Rashima Asokan
Nutrients ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1002 ◽  
Author(s):  
Thomas Lawler ◽  
Yao Liu ◽  
Krista Christensen ◽  
Thasarat S. Vajaranant ◽  
Julie Mares

Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness worldwide, and the prevalence is projected to increase to 112 million worldwide by 2040. Intraocular pressure is currently the only proven modifiable risk factor to treat POAG, but recent evidence suggests a link between antioxidant levels and risk for prevalent glaucoma. Studies have found that antioxidant levels are lower in the serum and aqueous humor of glaucoma patients. In this review, we provide a brief overview of the evidence linking oxidative stress to glaucomatous pathology, followed by an in-depth discussion of epidemiological studies and clinical trials of antioxidant consumption and glaucomatous visual field loss. Lastly, we highlight a possible role for antioxidant carotenoids lutein and zeaxanthin, which accumulate in the retina to form macular pigment, as evidence has emerged supporting an association between macular pigment levels and age-related eye disease, including glaucoma. We conclude that the evidence base is inconsistent in showing causal links between dietary antioxidants and glaucoma risk, and that prospective studies are needed to further investigate the possible relationship between macular pigment levels and glaucoma risk specifically.


Author(s):  
Д.И. Свинарева

Первичная открытоугольная глаукома (ПОУГ) - это хроническое заболевание глаз, сопровождающееся повышением внутриглазного давления и характерными изменениями поля зрения. Мужской пол является фактором риска развития глаукомы. Целью исследования явилось изучение роли трехлокусных моделей с участием 8 полиморфных локусов генов матриксных металлопротеиназ (rs679620 ММР3, rs1799750 ММР1, rs2250889, rs3918249, rs17576, rs3918249, rs3787268 и rs17577 ММР9) в формировании ПОУГ у мужчин. Нами выявлено 7 трехлокусных моделей SNP×SNP взаимодействий, определяющих подверженность к развитию ПОУГ у мужчин. Primary open-angle glaucoma (POAG) is a chronic eye disease accompanied by an increase in intraocular pressure and specific changes in the visual field. Male gender is a risk factor for glaucoma. The aim of the study is research the role of three-locus models with the participation of 8 polymorphic loci of the matrix metalloproteinases genes (rs679620 MMP3, rs1799750 MMP1, rs2250889, rs3918249, rs17576, rs3918889 and rs17577 MMP9) in the POAG formation among men. We have identified 7 three-locus models of SNP × SNP interactions that determine susceptibility to the development of POAG in men.


2018 ◽  
Vol 29 (4) ◽  
pp. 437-443 ◽  
Author(s):  
Javier Benitez-del-Castillo ◽  
Jorge Cantu-Dibildox ◽  
Silvia M Sanz-González ◽  
Vicente Zanón-Moreno ◽  
Maria Dolores Pinazo-Duran

Background: The aim of this study was to assess the expression of cytokines/chemokines in tears from patients with non-advanced primary open-angle glaucoma and patients with non-severe dry eye disease versus healthy controls. Methods: This prospective, observational cohort study enrolled patients with confirmed or suspected non-advanced primary open-angle glaucoma who received any prostaglandin analogue monotherapy for longer than 6 months, patients with non-severe dry eye disease, and healthy controls. Expression of interleukin-1β, interleukin-2, interleukin-4, interleukin-5, interleukin-6, interleukin-8, interleukin-10, and interleukin-12; tumor necrosis factor α; vascular endothelial growth factor; granulocyte-macrophage colony-stimulating factor; and interferon γ was assessed. Results: 107 participants were enrolled (primary open-angle glaucoma, n = 41; dry eye disease, n = 30; and healthy controls, n = 36). Compared with healthy controls, interleukin-6 was significantly higher ( p = 0.0001) in patients with primary open-angle glaucoma and interleukin-1β ( p = 0.0144), interleukin-6 ( p < 0.0001), and interleukin-10 ( p = 0.0392) were higher in patients with dry eye disease. Compared with patients with dry eye disease, patients with primary open-angle glaucoma had significantly lower levels of interleukin-4 (21.79 vs 20.18 pg/mL; p = 0.0012) and significantly higher levels of vascular endothelial growth factor (367.75 vs 609.28 pg/mL; p = 0.0058), tumor necrosis factor α (14.27 vs 17.93 pg/mL; p = 0.0048), and interleukin-6 (17.95 vs 27.48 pg/mL; p = 0.0145). In patients with primary open-angle glaucoma, interleukin-1β expression ( p = 0.0011) was lower than in those who received intraocular pressure–lowering eye drops without preservatives compared with those who received eye drops with preservatives. Conclusion: Different cytokine/chemokine expression profiles in tears of patients with primary open-angle glaucoma and dry eye disease strongly suggest the involvement of a variety of signaling pathways in the pathogenesis of these ophthalmic processes.


Author(s):  
E. N. Simakova ◽  
O. V. Stenkova

Introduction. Glaucoma is one of the most significant eye diseases. It is often diagnosed, not always amenable to therapy, and can lead to a complete loss of visual functions. In recent years, the method of osteopathic correction has become widespread as one of the effective methods of treatment and rehabilitation of patients with pathologies of various body systems. In the pathogenesis of glaucoma, it is customary to distinguish a dystrophic concept, which considers primary open-angle glaucoma as a result of dystrophic changes in the connective tissue, as well as in the endothelial lining of the trabeculae and Schlemm′s canal, especially destructive changes in mitochondria and the alteration of their functional activity. A vascular concept is also distinguished. According to this concept, the central link in the pathogenesis of glaucoma is circulatory disorder in the ciliary vessels, ocular artery, and major vessels of the head and neck, it can be assumed that osteopathic correction in the treatment of patients with open-angle glaucoma will be pathogenetically substantiated and will have a positive effect on intraocular pressure and trophicity of the optic nerve. The goal of research — to study the influence of in osteopathic correction on the nature of unoperated glaucoma (stage IIA) and to substantiate the possibility of using osteopathic correction in the complex treatment of patients with this pathology.Materials and methods. A prospective controlled randomized study was conducted at 52 city polyclinics, branch 3, Moscow, from January 2018 to January 2019. 40 patients (70 eyes) aged 50 to 75 years with primary open-angle glaucoma IIA stage were examined. At this stage of the disease, patients most often seek medical care and the issue of conservative management is primarily considered. All patients were divided into two groups of 20 people: the main group and the control group. The treatment in the main group included hypotensive drug therapy and osteopathic correction. Patients of the control group received only drug therapy. All patients underwent ophthalmic (visometry, tonometry, perimetry) and osteopathic examination twice: before the treatment and after 3 months.Results. For patients with primary open-angle IIA non-operated glaucoma, regional (most often regions of the head, neck, dura mater) and local (abdominal diaphragm, iliac bones, hip and knee joints) somatic dysfunctions were the most typical. In the main group a statistically significant decrease in the frequency and severity of dysfunctions at all levels was stated. Also, in patients receiving osteopathic correction, a significant decrease in the level of intraocular pressure and perimetric indices was noted. In patients of the control group, no reliable changes in these indicators were obtained.Conclusion. The results obtained indicate that osteopathic correction is clinically effective in the complex treatment of patients with primary open-angle II A glaucoma.


1990 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
In Seop Lee ◽  
Young Suk Yu ◽  
Dong Myung Kim ◽  
Dong Ho Youn ◽  
Jin Q Kim

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