Hypertonic Saline

Hypertonic saline is a solution with a higher concentration of dissolved salts, and therefore a greater osmolarity, than the surrounding fluid or physiological saline. When cells or tissues encounter it, water moves across semipermeable membranes toward the more concentrated solution, causing cellular dehydration and changes in volume, membrane tension, and solute balance. In cancer research, these controlled osmotic conditions help investigators study how tumor and normal cells regulate volume, respond to environmental stress, and maintain membrane and intracellular homeostasis. Such experiments can clarify transport mechanisms and identify differences in stress tolerance that may inform studies of cancer cell biology and therapeutic response.

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A Hypertonic Saline Injection Technique for Inducing Glaucoma in Rats

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2025

This video demonstrates glaucoma induction in an anesthetized rat by injecting hypertonic saline into the episcleral vein. The saline enters the trabecular meshwork via Schlemm's canal, causing tissue scarring, which blocks aqueous humor outflow and raises intraocular pressure. The elevated pressure damages retinal ganglion cells, leading to glaucoma.

Salinity Tolerance of Alishewanella Species Isolated from Seawall Muddy Water

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2025

Begin with a culture of Alishewanella, a Gram-negative, salt-tolerant bacterium.Next, streak the culture onto agar plates containing increasing concentrations of sodium chloride to simulate varying levels of saline stress.Overlay each plate with a layer of unsolidified medium to prevent oxygen diffusion and maintain the culture in an oxygen-limited environment.Seal and incubate the plates at an optimum temperature to support bacterial growth.During incubation, the bacterium exhibits varying...

Salinity-dependent Toxicity Assay of Silver Nanocolloids Using Medaka Eggs

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Cited by 2 •

2016

Embryonic stages are the most susceptible to xenobiotics. Although chemical toxicity depends on salinity, no method exists to test the salinity dependence of toxicity to aquatic organisms. Here, we describe a new and high-throughput method for determining the salinity dependence of toxicity to aquatic embryos.

Saline Lavage for Sampling of the Canine Nasal Immune Microenvironment

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2024

Saline nasal lavage can be used to sample the canine nasal immune microenvironment. Because the approach is relatively non-invasive and does not disrupt the nasal tissues, it can be performed serially. Cells and proteins collected from the nasal lavage technique can be processed for various laboratory analyses.

Production of Arbuscular Mycorrhizal (AM) Fungal Inoculum and Phenotypic Evaluation of Rice and AM Symbiosis Under Saline Conditions

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2025

This article describes a protocol for generating arbuscular mycorrhizal (AM) fungi inoculum to investigate AM-enhanced salt stress tolerance in rice.

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