methylene blue


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

methylene blue

 [meth´ĭ-lēn]
a synthetic organic compound, in dark green crystals or lustrous crystalline powder, used in treatment of methemoglobinemia, as a stain in pathology and bacteriology, and as a diagnostic aid in the detection of the premature rupture of fetal membranes.

meth·y·lene blue

(meth'ĭ-lēn blū), [C.I. 52015]
A basic dye easily oxidized to azure with dye mixtures; used in histology and microbiology to stain intestinal protozoa in wet mount preparations, to track RNA and RNase in electrophoresis, and as an antidote for methemoglobinemia; its redox indicator properties are useful in milk bacteriology.

methylene blue

n.
A heterocyclic aromatic compound, C16H18N3SCl·3H2O, consisting of dark green crystals that form a deep blue solution when dissolved in water. It is used as an antidote for cyanide poisoning, an analytical indicator, and a bacteriological stain.

methylene blue

[meth′əlēn]
a bluish-green crystalline substance used as a histological stain and a laboratory indicator. It is also used in the treatment of cyanide poisoning and methemoglobinemia.

methylene blue

Alternative oncology
A synthetic bacteriostatic dye that inhibits the growth of several experimental cell lines, which has been proposed as a therapy for certain cancers; used in combination with phototherapy, it may be useful for superficial bladder cancer.

meth·y·lene blue

(meth'i-lēn blū)
A basic dye easily oxidized to azure, with dye mixtures; used in histology and microbiology, to stain intestinal protozoa in wet-mount preparations, to track RNA and RNase in electrophoresis, and as an antidote for methemoglobinemia; its redox indicator properties are useful in milk bacteriology.

methylene blue

A solution of methylthioninium chloride that has been used to treat METHAEMOGLOBINAEMIA. It is also used as a bacterial stain and sometimes in surgery to demonstrate fistulas. The drug is on the WHO official list.

Methylene blue

A dye that is used to stain the blood cells for the reticulocyte count.
Mentioned in: Reticulocyte Count

meth·y·lene blue

(meth'i-lēn blū)
A basic dye easily oxidized to azure, with dye mixtures; used in histology and microbiology.

methylene blue

(meth´əlēn´),
n a bluish-green crystalline substance used as a histologic stain and as a laboratory indicator. It is also used in the treatment of cyanide poisoning and methemoglobinemia.

methylene blue

a synthetic organic compound, in dark green crystals or lustrous crystalline powder, used in treatment of methemoglobinemia, as an antidote in cyanide poisoning, as a stain in pathology and bacteriology, and as an antiseptic.

methylene blue dye binding test
new methylene blue stain
see new methylene blue stain.
References in periodicals archive ?
A kinetics and thermodynamics study of methylene blue adsorption on wheat shells.
The Evelyn-Malloy test and spectrophotometry resolving Met-Hb and methylene blue are methods to confirm the presence of increased Met-Hb.
Removal of methylene blue from aqueous phase by pretreated walnut shell in a packed column, Iranica Journal of Energy and Environment 1(2): 137-143.
However, it may not be so and methylene blue is helpful in locating the site of urethral injury in such cases.
In the present study, we used a combination of supplemental oxygen, administration of methylene blue, dermal decontamination, gastric lavage, MDAC and ascorbic acid as well as CVVH.
The court completely rejected Amanda's expert witness' contention that McKesson's failure to instruct hospital personnel, including nurses, regarding the contraindication of the methylene blue dye was in violation of the agreement it had with the hospital.
Serious CNS reactions have also been reported to AERS in patients treated with methylene blue and serotonergic psychiatric medications, and more cases have also been reported in the literature, according to the second advisory, which does not mention any reports of fatal cases.
The time-honored, and by far the most popular, method of leak testing packaged product is the infamous methylene blue dye test.
Methylene blue, the intravenous electron transfer dye used to reduce methaemoglobin, was administered.
Chicago -- An updated version of the drug methylene blue appears to slow cognitive decline significantly in patients with moderate Alzheimer's disease by dissolving tau tangles in the brain, according to the results of a phase II trial.
A suitable photosensitizer is Rose Bengal, riboflavin-5-phosphate, methylene blue, or N-hydroxypyridine-2-(1H)-thione.
At a 2-year follow-up and evaluation of this patient, all imaging procedures (including the instillation of methylene blue solution, conventional ultrasound, cystoscopy, and intravenous pyelogram [IVP]) were normal.