Cold Saline
Cold Saline - Related Videos
08:37
Liver Cold Storage and Transplantation in the Cold-Adaptive Daurian Ground Squirrels
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2025
Here, we present a protocol to establish a long-term liver cold storage and transplantation model in Daurian ground squirrel (DGS), which has been technically challenging in standard rodent models.
10:13
Working with Hot and Cold Sources
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2023
Source: Robert M. Rioux & Suprita Jharimune, Pennsylvania State University, University Park, PA Working with extreme temperatures, both high and low, is an integral part of many laboratory operations. For many, mentioning a laboratory instantly evokes the mental picture of a Bunsen burner. Bunsen burners and hot plates are used extensively in small and large operations in research laboratories and industries, thus making it necessary for all users to be aware of their safe handling...
03:15
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.
01:17
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...
06:29
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.
FAQs
The dissolved sodium and chloride ions help keep the surrounding solution osmotically suitable for biological material. This matters because water movement and cellular stability depend on the ionic environment, not temperature alone. In a rinse or holding medium, preserving those conditions can reduce osmotic disturbance during handling, provided the salinity matches the tolerance of the cells or tissue.
Lowering temperature reduces molecular activity, which can slow cellular metabolism and enzymatic reactions. It may also slow tissue deterioration during short-term handling. The effect is temporary and condition-dependent: the medium supports brief procedures, but the outcome depends on how cold it is, how long exposure lasts, and how well the cells or tissue tolerate the conditions.
Salinity, temperature, exposure time, and biological tolerance should be treated as linked variables. Salinity determines whether osmotic conditions remain suitable, while temperature affects molecular activity. Exposure time determines how long the material experiences both influences. Considering all four helps investigators choose conditions that support handling without assuming that colder or longer exposure will always improve specimen stability.
Cold Saline provides two relevant effects at once: dissolved ions support osmotic conditions, and reduced temperature lowers biological activity. Cooling alone would not provide the ionic environment associated with saline, while saline at a higher temperature would not offer the same reduction in molecular activity. This distinction helps when selecting a medium for rinsing, dissection, or physiological experiments.
A basic use begins by maintaining the saline at the intended low temperature, then applying it according to the experiment, such as rinsing cells or tissues or maintaining a specimen during dissection. The investigator should monitor temperature and salinity and limit exposure to the period required for the procedure. These controls keep the cooling and ionic effects consistent.
It is useful when biological material must be handled briefly while reduced activity is desirable. Examples include cell or tissue rinsing, specimen maintenance during dissection, and controlled cooling in physiological experiments. These applications differ in purpose, but each relies on matching the solution’s salinity and temperature to the material and keeping exposure within its tolerance.
Researchers should assess whether the material remains suitable for the intended short-term procedure rather than treating the medium as a universal preservation solution. Relevant considerations include how cells or tissues tolerate the salinity, how long they remain exposed, and whether cooling produces the intended reduction in activity without interfering with handling. These checks help interpret experimental results.