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Forte G, Battagliola ET, Malvasi M, Ruberti N, Daniele P, Mantovani A, Bocca B, Pacella E. Trace Element Concentration in the Blood and Aqueous Humor of Subjects with Eye Cataract. Biol Trace Elem Res 2024:10.1007/s12011-024-04207-3. [PMID: 38687421 DOI: 10.1007/s12011-024-04207-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 04/24/2024] [Indexed: 05/02/2024]
Abstract
Cataract, characterized by the opacification of the lens, is the leading cause of reversible blindness and visual impairment globally. The study aims to investigate the role of trace elements such as Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, and Zn in the development and severity of cataract. Elements were quantified by inductively coupled plasma mass spectrometry in blood and aqueous humor of 32 cataract cases and 27 controls living in the Latium region, Italy. The association between element concentration in blood and aqueous humor and cataract severity, gender, and age of subjects were also assessed. Results showed Cr levels significantly elevated in both blood and aqueous humor of cataract cases, with concentrations that increased with cataract severity. In addition, blood Pb levels were significantly higher in older cases and positively correlated with the age of cataract cases, while blood Co and Cu levels negatively correlated with cataract severity, suggesting changes in the levels of these elements. In conclusion, this study provides evidence of the involvement of specific elements in cataract development and severity, and the findings highlighted important avenues for future research. Understanding the biological mechanism underlying element-induced cataract may contribute to preventing cataractogenesis and providing targeted interventions.
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Affiliation(s)
- Giovanni Forte
- Department of Environment and Health, Italian National Institute of Health, 00161, Rome, Italy
| | | | - Mariaelena Malvasi
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy
| | - Niccolò Ruberti
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy
| | - Pierluigi Daniele
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy
| | | | - Beatrice Bocca
- Department of Environment and Health, Italian National Institute of Health, 00161, Rome, Italy
| | - Elena Pacella
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy.
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Bocca B, Forte G, Pisano A, Farace C, Giancipoli E, Pinna A, Dore S, Madeddu R. A pilot study to evaluate the levels of aqueous humor trace elements in open-angle glaucoma. J Trace Elem Med Biol 2020; 61:126560. [PMID: 32485500 DOI: 10.1016/j.jtemb.2020.126560] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/03/2020] [Accepted: 05/20/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Primary open angle glaucoma (POAG) is the most common form of chronic, progressive optic neuropathies characterized by slow degeneration of the retinal ganglion cells and their axons, resulting in visual field loss. Risk factors for this disease are elevated intraocular pressure (IOP), increased age, European and African ethnicity, family history, myopia and decreased corneal thickness. In addition, studies indicated that levels of trace elements are also significantly related to the POAG. METHOD The association between toxic and essential elements and POAG was explored in a population-based case-control study in the Sardinia Island (Italy). The aqueous humor levels of Al, Cd, Cu, Fe, Hg, Mn, Ni, Pb and Zn were measured in 25 POAG patients compared to 20 age- and gender-matched healthy controls by sector field inductively coupled mass spectrometry. Risk factors as gender, age and increased IOP were also explored. RESULTS The concentrations of Fe, Hg and Zn were significantly higher in POAG patients than in control subjects, showing these elements as possible determinants in POAG development or degeneration. Other findings were the increased Cu and Fe levels in glaucomatous patients with age less than 70 years. Levels of Ni were found elevated in POAG females. Mercury accumulated more in POAG females, in patients over 70 years and in those with higher levels of IOP in the left eye. Moreover, the positive associations CuFe and Mn-Zn may indicate synergistic effects of elements. CONCLUSIONS Altogether, these findings suggested a multifactorial role in the risk for POAG disease. The present study documented the levels of trace elements in aqueous humor of Sardinian POAG patients for the first time.
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Affiliation(s)
- Beatrice Bocca
- Department of Environment and Health, Italian National Institute for Health, Viale Regina Elena 299, 00161 Rome, Italy
| | - Giovanni Forte
- Department of Environment and Health, Italian National Institute for Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Andrea Pisano
- Department of Biomedical Sciences-Histology, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Cristiano Farace
- Department of Biomedical Sciences-Histology, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Ermete Giancipoli
- Department of Medical Surgical and Experimental Sciences, Ophthalmology Unit, University of Sassari, Viale San Pietro 43/C, 07100 Sassari, Italy
| | - Antonio Pinna
- Department of Medical Surgical and Experimental Sciences, Ophthalmology Unit, University of Sassari, Viale San Pietro 43/C, 07100 Sassari, Italy
| | - Stefano Dore
- Department of Medical Surgical and Experimental Sciences, Ophthalmology Unit, University of Sassari, Viale San Pietro 43/C, 07100 Sassari, Italy
| | - Roberto Madeddu
- Department of Biomedical Sciences-Histology, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; I.S.R.C.T.--International Society for Research on Cadmium Toxicity, Viale San Pietro 43/B, 07100 Sassari, Italy
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Susanti L, Kang S, Park S, Park E, Park Y, Kim B, Kim S, Seo K. Effect of Three Different Sedatives on Electroretinography Recordings in Domestic Pigeons ( Columba livia). J Avian Med Surg 2020; 33:115-122. [PMID: 31251498 DOI: 10.1647/2018-351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study was conducted to compare the effects of 3 different sedative agents on electroretinography (ERG) in domestic pigeons (Columba livia). Six pigeons were sedated with alfaxalone, xylazine, and medetomidine at separate times with a 1-week washout period between sedative administration. After sedation with each agent, pigeons underwent the modified ERG protocol adapted from the standardized protocol for dogs. The scotopic mixed rod and cone response was recorded after 20 minutes of dark adaptation, and the photopic cone response and photopic flicker response were recorded after 10 minutes of light adaptation. Either a 1-way analysis of variance or a Kruskall-Wallis test was used to compare the a-wave and b-wave implicit time and amplitude. No significant differences were observed in the scotopic mixed rod and cone response among all 3 sedatives used. Compared with alfaxalone, medetomidine significantly prolonged the a-wave implicit time, depressed the b-wave amplitude of photopic cone response, and prolonged the peak implicit time of the photopic flicker response (P < .05). These results show that medetomidine has a depressant effect on photopic ERG in pigeons at a dosage that produces light sedation.
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Affiliation(s)
- Lina Susanti
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
| | - Seonmi Kang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
| | - Sangwan Park
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
| | - Eunjin Park
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
| | - Yoonji Park
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
| | - Boyun Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
| | - Sunhyo Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
| | - Kangmoon Seo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Korea
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Kokavec J, Min SH, Tan MH, Gilhotra JS, Newland HS, Durkin SR, Casson RJ. Manganese in the human vitreous. Clin Exp Ophthalmol 2016; 44:646. [DOI: 10.1111/ceo.12736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 02/23/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Jan Kokavec
- South Australian Institute of Ophthalmology; University of Adelaide; Royal Adelaide Hospital Adelaide South Australia Australia
| | - San H Min
- South Australian Institute of Ophthalmology; University of Adelaide; Royal Adelaide Hospital Adelaide South Australia Australia
| | - Mei H Tan
- South Australian Institute of Ophthalmology; University of Adelaide; Royal Adelaide Hospital Adelaide South Australia Australia
| | - Jagjit S Gilhotra
- South Australian Institute of Ophthalmology; University of Adelaide; Royal Adelaide Hospital Adelaide South Australia Australia
| | - Henry S Newland
- South Australian Institute of Ophthalmology; University of Adelaide; Royal Adelaide Hospital Adelaide South Australia Australia
| | - Shane R Durkin
- South Australian Institute of Ophthalmology; University of Adelaide; Royal Adelaide Hospital Adelaide South Australia Australia
| | - Robert J Casson
- South Australian Institute of Ophthalmology; University of Adelaide; Royal Adelaide Hospital Adelaide South Australia Australia
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Fleischman A, Parvari U, Oron Y, Geyer O. Monitoring the effect of mild ischemia with a built-in light-emitting diode contact lens electrode and a low-cost custom-made apparatus. Physiol Meas 2012; 33:1053-2. [PMID: 22561091 DOI: 10.1088/0967-3334/33/6/1053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Electroretinography (ERG) is widely used in clinical work and research to assess the retinal function. We evaluated an easy to build ERG setup adapted for small animals comprising two contact lens electrodes with a built-in light-emitting diode and a custom-made amplification system. The system's sensitivity was tested by monitoring ERG in albino rat eyes subjected to mild ischemia. Flash ERG was recorded by two contact lens electrodes positioned on the rat's corneas and used alternately as test or reference. The a- and b-wave amplitudes, a-wave latency, b-wave implicit time and oscillatory potentials (OPs) were analyzed. Ischemia was achieved by elevating the intraocular pressure in the eye's anterior chamber. ERG was recorded on post-ischemia (PI) days -1, 1, 3 and 7. Morphological changes were analyzed on hematoxylin/eosin stained 5 µm sections of control 7d PI retinas. In control eyes, ERG exhibited a pattern similar to a standard recording. Retinas subjected to mild ischemia preserved ordered layered morphology, exhibiting approximately 30% loss of ganglion cells and no changes in gross morphology. By day 3 PI, ischemia caused an increase in the a-wave amplitude (from 34.9 ± 2.7 to 45.4 ± 4.3 µV), a decrease in the b-wave amplitude (from 248 ± 13 to 162 ± 8 µV), an increase in a-wave latency (from 11.1 ± 0.3 to 17.3 ± 1.4 ms) and b-wave implicit time (from 81.0 ± 1.6 to 90.0 ± 2.5 ms), and attenuation of OPs. The described setup proved sensitive and reliable for evaluating subtle changes in the retinal function in small animals.
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Affiliation(s)
- A Fleischman
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
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Zhu Q, Chen J, Zheng M, Chen L, Liu J, Tian J, Huang W, Yang X. Mineral elements in the hair of amblyopic children. Biol Trace Elem Res 2011; 141:119-25. [PMID: 20490709 DOI: 10.1007/s12011-010-8730-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Accepted: 05/05/2010] [Indexed: 10/19/2022]
Abstract
Amblyopia is a common cause of vision damage in children, and some aspects of its etiology are not clear. A number of mineral elements have important effects on the nerve and visual nerve systems. However, little is known about the relationship between amblyopia and nutritional mineral elements. In this study, hair samples were collected from 67 children with amblyopia and 57 age-matched control groups. The height and weight of each child was measured, and body mass index (BMI) was calculated. Mineral elements were determined by atomic absorption spectrometry and inductively coupled plasma-atomic emission spectrometry. The calcium and magnesium levels in the hair of amblyopic children were higher (p < 0.006), but the level of manganese were lower compared with those in the control groups (p < 0.006). Other elements measured were found to have an insignificant difference between the two groups (p > 0.006). The BMI of amblyopic children was higher (p < 0.001). These results show that mineral elements may play an important role in the visual development of children. Therefore, studies should pay more attention to investigating the impact of mineral elements on child vision.
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Affiliation(s)
- Qiaolin Zhu
- School of Ophthalmology and Optometry and Affiliated Eye Hospital, Wenzhou Medical College, Wenzhou City, Zhejiang, China
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DeMaman AS, Melo P, Homem JM, Tavares MA, Lachat JJ. Effectiveness of iron repletion in the diet for the optic nerve development of anaemic rats. Eye (Lond) 2009; 24:901-8. [DOI: 10.1038/eye.2009.205] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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