Effect of infrared light on live blood cells: Role of β-carotene

Barkur, Surekha; Bankapur, Aseefhali; Chidangil, Santhosh; Mathur, D.

doi:10.1016/j.jphotobiol.2017.04.034

Cited by 20 publications

(17 citation statements)

References 56 publications

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“…Ten‐milliwatt laser power and 4 min of acquisition time were used for recording all the spectra. The parameters used are based on our earlier study and are well within the damage threshold . Raman spectra were recorded in the 510‐cm −1 to 1,700‐cm −1 wavenumber region where most of the Raman bands from biomolecules are expected.…”

Section: Results and Discissionmentioning

confidence: 99%

“…Baseline correction or background removal was done using asymmetric least squares smoothing method . Normalisation of spectra was done using vector normalisation method . In this method, mean‐centred spectra are divided by square root of the sum of the squared mean‐centred intensities so that the sum of the squared intensity values of the spectrum will be equal to 1.…”

Section: Methodsmentioning

confidence: 99%

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A laser Raman tweezers study of eryptosis

Barkur

Mathur

Chidangil

2018

J Raman Spectroscopy

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Eryptosis—the suicidal death of erythrocytes—is characterized by membrane blebbing and cell shrinkage. Eryptosis can be triggered by various xenobiotics such as carbon monoxide, lead, and amyloid, and by stressors such as oxidative stress, osmotic shock, and rapid alteration of ambient conditions. We have used Raman tweezers spectroscopy to study eryptosis in single, live cells and have attempted to explore the underlying mechanism, specifically to identify possible Raman signatures of eryptosis. Erythrocytes (red blood cells) were exposed to free radicals, silver nanoparticles, glucose, heat, and osmotic shock to induce eryptosis, and a comparison was made of their Raman spectra, which indicated that these conditions lead to a transition of haemoglobin from the R to the T state. Consequences of eryptosis include dehydration, cell shrinkage, and pH changes, which result in deoxygenation of haemoglobin. This, in turn, can be detected by monitoring the wavenumber shifts associated with Raman marker bands of R to T transitions. In addition, the principal component analysis results indicate differentiation among red blood cells undergone eryptosis due to different conditions.

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Section: Results and Discissionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

A laser Raman tweezers study of eryptosis

Barkur

Mathur

Chidangil

2018

J Raman Spectroscopy

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“…[46] Because of these properties, β-carotene has desirable power in inactivating certain ROS and is useful in neuroprotective effect protecting against LDL and HDL. [10,43,47] βcarotene inhibits free radical through transferring electrons which lead to formation of carotenoid cation radical and hydrogen atom transfer. [27] The antioxidant potential of β-carotene has been widely investigated and some positive results have been reported.…”

Section: β-Carotenementioning

confidence: 99%

“…[27] Among other functions, it has been shown to be important for the maintenance of the immune system; it supports cell growth and differentiation playing a role in the formation and maintenance of the heart, kidney, and other organs. [35,47] β-carotene-enriched diet neutralizes the damaging molecules which results in defying age naturally. [21] It helps the body to absorb light in the eyes for good vision and further functions as growth factor for epithelial cells and modulates gene function mainly due to the enzyme dioxygenase, which is present in the human small intestine mucosa, and it converts β-carotene into retinol.…”

Section: β-Carotenementioning

confidence: 99%

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Watermelon as a potential fruit snack

Maoto

Beswa

Jideani

2019

International Journal of Food Properties

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With the rapid increase in cardiovascular diseases, health-conscious consumers are increasingly showing more interest in foods that provide health benefits beyond the provision of essential nutrients. Watermelon contains phytochemicals such as lycopene, vitamin C, β-carotene, and Total polyphenolic content that possess anti-inflammatory, anticancer, and antioxidant properties. Dietary intake of these products with antioxidants properties is important in maintaining human health and well-being. These reduces incidence of chronic diseases such as hypertension, diabetes, cancer, and some coronary heart diseases, through inhibiting formation of free radicals and reactive oxygen species. The presence of these phytochemicals enhances its potential use as a functional ingredient in food application. This paper aims to characterize the phytochemicals found in watermelon, and emphasis is directed toward the role of natural antioxidants in reducing the risk of chronic diseases to discourage the use of synthetic antioxidants. Moreover, another focus is on seeking the recognition of watermelon as a potential snack and to support its traditional consumption.

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Health Properties and Breeding for Phytonutrients in Watermelon (Citrullus lanatus L.)

Jat,

Reddy

2023

Compendium of Plant Genomes

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Effect of infrared light on live blood cells: Role of β-carotene

Cited by 20 publications

References 56 publications

A laser Raman tweezers study of eryptosis

A laser Raman tweezers study of eryptosis

Watermelon as a potential fruit snack

Health Properties and Breeding for Phytonutrients in Watermelon (Citrullus lanatus L.)

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