Excretion of Urea, Sodium, Potassium and Chloride in Human Tears
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Glucose concentration in tear fluid was measured by hydrogel-coated nanospheres comprising tetramethylrhodamine isothiocyanate concanavalin A and fluorescein isothiocyanate dextran in contact lenses.
“Glucose concentration in tear fluid was measured by hydrogel‐coated nanospheres comprising tetramethylrhodamine isothiocyanate concanavalin A and fluorescein isothiocyanate dextran in contact lenses.66”
From Wearables in Medicine (2018) · cites this paper as [66]
These fluorescence probes allowed monitoring tear glucose concentration in a diabetic human patient over 3 h.
“These fluorescence probes allowed monitoring tear glucose concentration in a diabetic human patient over 3 h.”
From Wearables in Medicine (2018) · cites this paper as [66]
Biomarker molecules in tears diffuse directly from the blood and exhibit close tear-blood concentration correlations.
“Not only do biomarker molecules in tears diffuse directly from the blood and exhibit close tear–blood concentration correlations, but also tear analysis presents opportunities for the diagnosis of ocular disease.”
From Wearable biosensors for healthcare monitoring (2019) · cites this paper as [96]
Tear analysis presents opportunities for the diagnosis of ocular disease.
“Not only do biomarker molecules in tears diffuse directly from the blood and exhibit close tear–blood concentration correlations, but also tear analysis presents opportunities for the diagnosis of ocular disease.”
From Wearable biosensors for healthcare monitoring (2019) · cites this paper as [96]
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“T Pankratov et al., 2016; Thaysen and Thorn, 1954).”
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“of potassium secretion on the flow rate remains equivocal.(63,71,72) Although calcium”
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“The metal ions employed in this experiment are mostly found in human biofluids such as tears [65] and sweat [66].”
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“…e.g. toad skin (Kalman & Ussing 1955), rat small intestine (Curran & Solomon 1957, Parsons & Wingate 1958, Curran 1960), proximal tubule of the glomerular nephron (Windhager et al. 1959), gallbladder (Diamond 1962, 1964), exocrine glands (Thaysen & Thorn 1954) and upper airways (Grubb et al. 1997).”
BackgroundEnhanced corneal wound healing with hyaluronic acid and high‐potassium artificial tears
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“79 mmol/l in normal human tears.(33) Corneal epithelial cells show marked efflux of intracellular potassium, which may contribute to cell apoptosis, after exposure to ultraviolet B light (UVB).”
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“[158] cited tear values from the literature of between 5 and 21 mOsm/L [96,159,160] and in his own studies, reported a mean value of 5.”
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Surface enhanced Raman scattering of herpes simplex virus in tear film
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“Thus, while the concentrations of Na+ and HCO3- in human tears are close to those of the plasma (Krogh and Lund, 1945; Hind and Goyan, 1949; Thaysen and Thorn, 1954; Yoshimura and Hosokawa, 1963), those of K+and Cl− are higher in the tears (Rismondo et al., 1989), and there is evidence in the…”
BackgroundRecent advances in the study of tear biomarkers and contact lens-based biosensors
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“…to the general scheme of vertebrate exocrine glands, i.e. the [K+] is several times larger in the primary secretion than in the extracellular fluid (Thaysen & Thorn 1954, Thaysen et al. 1954, Schwartz & Thaysen 1956, Young & Van Lennep 1978, Petersen & Findlay 1987, Cook & Young 1989, Tan et al.…”
BackgroundEstimating basal tear osmolarity in normal and dry eye subjects
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- Authors
- Thaysen, J. H., & Thorn, N. A.
- Affiliations
- Rockefeller University Hospital (US)
- Venue
- American Journal of Physiology-Legacy Content
- Publisher
- American Physiological Society
- Published
- 1954-07-01
- Volume
- 178
- Issue
- 1
- Pages
- 160-164
- ISSN
- 0002-9513 (ISSN-L)
- OpenAlex
- W2323312589
- Cited by
- 93
- References
- 0
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 4 · 2017: 2 · 2016: 1 · 2015: 1 · 2014: 4 · 2013: 2 · 2012: 1
- FWCI
- 8.65
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Physiology-Legacy Content (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Ocular Surface and Contact Lens
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion Transport and Channel Regulation
- Health Sciences › Medicine › Physiology › Salivary Gland Disorders and Functions
- Keywords
- tears, urea excretion, sodium, potassium, chloride, electrolyte excretion, human eye
- MeSH terms
- Biological Transport, Body Fluids, Chlorides, Hemolysis, Humans, Ions, Lacrimal Apparatus, Potassium, Sodium, Tears, Urea
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