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Chemical Compound Review

Argon-41     argon

Synonyms: AC1L3FYK, 41Ar, Argon, isotope of mass 41
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Disease relevance of argon


High impact information on argon

  • Here, Jeffrey Melnick and Yair Argon review the known ER chaperones, summarize their roles in the maturation of antigen receptors, and discuss how they may affect lymphocyte differentiation and function [6].
  • Recanalization of completely occluded superficial femoral or popliteal arteries was attempted in 18 patients with use of an Argon laser-mediated thermal probe [7].
  • After 7 days, 200 spots of laser burn over 360 degrees were delivered by an Argon laser (620-637 nm; 200 mW; 200 mm; 0.2 seconds) aimed at the ink deposits in the trabecular meshwork [8].
  • However, the leading FRET pair of this class (CFP/YFP) entails suboptimal donor excitation by Argon lasers, thereby hindering FRET imaging on many confocal microscopes [9].
  • GFP-AQP lateral mobility was measured by irreversibly bleaching a spot (diameter 0.8 microm) on the membrane with an Argon laser beam (488 nm) and following the fluorescence recovery into the bleached area resulting from GFP translational diffusion [10].

Chemical compound and disease context of argon

  • CONCLUSIONS: Argon plasma coagulation is an effective and safe treatment for hemorrhagic radiation proctitis that has been refractory to topical formalin therapy [11].
  • After 1 h hypoxia produced by Argon gas and 0, 2, 4, and 20 h reoxygenation the cell loss was calculated by propidiumiodide assay and the cell activity was investigated by Alamar Blue assay colorimetric measurement [12].
  • Rhodamine-123 (Rh-123) is a mitochondrial-specific dye that has recently proven to be an effective fluorochrome for photo-dynamic therapy of squamous carcinoma cells and melanomas with the Argon laser [13].
  • Preliminary experiences with the use of three lasers (CO2, Nd: YAG, Argon) in some posterior fossa tumors in childhood [14].

Biological context of argon

  • INTERVENTION: Argon laser photocoagulation was applied to the RPE in the hole bed, and FGX with 20% sulfur hexafluoride was then performed, followed by 2 weeks with the patient in a prone position [15].
  • The Argon beam coagulator is an electrosurgical device used for hemostasis during various operations [16].
  • Twenty-five patients with focal RNFL defects, evaluated by means of Argon-blue scanning laser ophthalmoscopy (SLO), underwent an automated 30 deg central visual field examination and a microperimetry with SLO [17].
  • The metastable argon atoms (Ar*: 11.55 eV for (3)P(2) and 11.72 eV for (3)P(0)) were generated by the negative-mode corona discharge of atmospheric-pressure argon gas [18].
  • Using argon laser blue light reduces ophthalmologists' color contrast sensitivity. Argon blue and surgeons' vision [19].

Anatomical context of argon

  • Small droplets were then introduced into inductively coupled plasmas (ICP) sustained in either Ar or He [20].
  • CONCLUSION: Argon laser trabeculoplasty produces a greater disruption of the blood-aqueous barrier than DLT [21].
  • According to our results, Argon-ion-, Nd:YAG-, and diode-lasers seem to be useful for an effective and bloodless reduction of hyperplastic turbinates [22].
  • Manipulations tested here were surgical conjunctival biopsy, low-energy Argon laser treatment (80 mJ) closing a venule temporarily, high-energy argon laser treatment (480 mJ) to occlude a venule firmly, and 193 nm eximer laser-based conjunctival phototherapeutic keratectomy (160 mJ) [23].
  • Histologic evaluation at 14 days revealed the greatest degree of inflammatory response in those tendons repaired with the Argon laser [24].

Associations of argon with other chemical compounds

  • A new pH indicator, seminaphthofluorescein (SNAFL)-calcein acetoxymethyl ester, was used for intracellular pH (pHi) measurement in living MDCK cells with a laser scanning confocal microscope (LSCM) equipped with an Argon/Krypton laser and dual-excitation and dual-emission (FITC/Texas Red) filter set [25].
  • This study compares the incidence of local tumor recurrence following primary excision with the CO2 laser, Nd:YAG laser (contact), Argon Beam Coagulator, or electrocautery [26].
  • The exhalation dynamics of carbon monoxide (CO), argon (Ar), and lung volume from a single-breath experiment are analyzed simultaneously [27].
  • METHODS: Argon laser lesions were inflicted on the retinas of 36 rats and were followed immediately by intraperitoneal injections of high-dose methylprednisolone or saline [28].
  • In Nembutal-anesthetized male Wistar rats and in fawn hooded bleeder rats, vascular lesions were produced with a Hadron-512-Ruby-bio-laser or with a Coherent CR-2 supergraphite ion laser (Argon laser) [29].

Gene context of argon

  • PURPOSE: Argon laser photocoagulation slows photoreceptor degeneration in the Royal College of Surgeons (RCS) rat, as does intravitreal injection of basic fibroblast growth factor (bFGF) [30].
  • The structure change during the growth processes was observed by transmission electron microscopy (TEM) and the variation in concentrations of gold species in the aqueous solution was monitored by UV-vis spectra and Inductively Coupled Argon Plasma Emission Spectrophotometer (ICAP) [31].
  • Spectra were recorded with the 514 nm Argon laser line during excitation times of 1 second (20 microW on the preparation) at 5 min intervals for 30 or 60 min, either at points in determined cell sites or serially throughout the cells [32].
  • Lasers for otosclerosis: CO2 vs. Argon and KTP-532 [33].
  • PATIENTS AND METHODS: We retrospectively analyzed 23 eyes of 21 patients with high myopia (>6.0 diopters and/or axial length >26 mm) with juxta foveal CNV treated with direct Argon green laser photocoagulation [34].

Analytical, diagnostic and therapeutic context of argon

  • These 136 patients were randomly allocated to Argon laser photocoagulation or to no additional therapy (controls) at the time of initial endoscopy [35].
  • METHODS: Argon laser trabeculoplasty, using typical clinical treatment parameters, was applied to anterior segment organ cultures [36].
  • METHODS: Argon laser lesions were created in the retinas of 36 DA rats, and were followed immediately by intraperitoneal injections of MK-801 (2 mg/kg) or saline [37].
  • METHODS: Fundus reflectance and autofluorescence maps at 488 and 514 nm Argon laser wavelengths were acquired in 53 healthy subjects with a custom-built scanning laser ophthalmoscope [38].
  • To assess more fully the risk to normal tissue exposed to accelerated heavy particles in the space program and during radiotherapy on earth, the cytopathological effects of a variety of doses of accelerated (570 MeV/amu) Argon (40Ar) ions on the rat lens were investigated [39].


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  5. Prospective randomized controlled trial of argon plasma coagulation ablation vs. endoscopic surveillance of patients with Barrett's esophagus after antireflux surgery. Ackroyd, R., Tam, W., Schoeman, M., Devitt, P.G., Watson, D.I. Gastrointest. Endosc. (2004) [Pubmed]
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  7. Laser-assisted thermal angioplasty in human peripheral artery occlusions: mechanism of recanalization. Tobis, J., Smolin, M., Mallery, J., MacLeay, L., Johnston, W.D., Connolly, J.E., Lewis, G., Zuch, B., Henry, W., Berns, M. J. Am. Coll. Cardiol. (1989) [Pubmed]
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  10. cAMP regulated membrane diffusion of a green fluorescent protein-aquaporin 2 chimera. Umenishi, F., Verbavatz, J.M., Verkman, A.S. Biophys. J. (2000) [Pubmed]
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  12. Cytoprotective effect of two synthetic enhancer substances, (-)-BPAP and (-)-deprenyl, on human brain capillary endothelial cells and rat PC12 cells. Denes, L., Szilágyi, G., Gál, A., Bori, Z., Nagy, Z. Life Sci. (2006) [Pubmed]
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  14. Preliminary experiences with the use of three lasers (CO2, Nd: YAG, Argon) in some posterior fossa tumors in childhood. Fasano, V.A., Lombard, G.F., Ponzio, R.M. Child's brain. (1983) [Pubmed]
  15. Photocoagulation and fluid-gas exchange to treat persistent macular holes after prior vitrectomy. A pilot study. Ikuno, Y., Kamei, M., Saito, Y., Ohji, M., Tano, Y. Ophthalmology (1998) [Pubmed]
  16. Argon beam coagulation in the management of placenta accreta. Scarantino, S.E., Reilly, J.G., Moretti, M.L., Pillari, V.T. Obstetrics and gynecology. (1999) [Pubmed]
  17. Microperimetry of localized retinal nerve fiber layer defects. Orzalesi, N., Miglior, S., Lonati, C., Rosetti, L. Vision Res. (1998) [Pubmed]
  18. Atmospheric-pressure Penning ionization mass spectrometry. Hiraoka, K., Fujimaki, S., Kambara, S., Furuya, H., Okazaki, S. Rapid Commun. Mass Spectrom. (2004) [Pubmed]
  19. Using argon laser blue light reduces ophthalmologists' color contrast sensitivity. Argon blue and surgeons' vision. Berninger, T.A., Canning, C.R., Gündüz, K., Strong, N., Arden, G.B. Arch. Ophthalmol. (1989) [Pubmed]
  20. Thimble glass frit nebulizer for atomic spectrometry. Clifford, R.H., Montaser, A., Sinex, S.A., Capar, S.G. Anal. Chem. (1989) [Pubmed]
  21. Comparison of the anterior chamber inflammatory response to diode and argon laser trabeculoplasty using a laser flare meter. Moriarty, A.P., McHugh, J.D., Spalton, D.J., Ffytche, T.J., Shah, S.M., Marshall, J. Ophthalmology (1993) [Pubmed]
  22. Comparison of laser induced effects on hyperplastic inferior nasal turbinates by means of scanning electron microscopy. Janda, P., Sroka, R., Betz, C.S., Baumgartner, R., Leunig, A. Lasers in surgery and medicine. (2002) [Pubmed]
  23. Leukocyte rolling and extravasation in surgical inflammation after mechanical and laser-induced trauma in human patients. Kirveskari, J., Helintö, M., Saaren-Seppälä, H., Renkonen, R., Tervo, T. Exp. Eye Res. (2003) [Pubmed]
  24. Tendon repair by laser welding: a histologic and biomechanical comparison and suture repair with CO2 and argon lasers. Kilkelly, F.X., Choma, T.J., Popovic, N., Miller, D.W., Sweet, D.E. Lasers in surgery and medicine. (1996) [Pubmed]
  25. Use of a new fluorescent probe, seminaphthofluorescein-calcein, for determination of intracellular pH by simultaneous dual-emission imaging laser scanning confocal microscopy. Zhou, Y., Marcus, E.M., Haugland, R.P., Opas, M. J. Cell. Physiol. (1995) [Pubmed]
  26. Comparison of local tumor recurrence following excision with the CO2 laser, Nd:YAG laser, and Argon Beam Coagulator. Lanzafame, R.J., Qiu, K., Rogers, D.W., Naim, J.O., Caldwell, F.C., Perry, F., Hall, D., Hinshaw, J.R. Lasers in surgery and medicine. (1988) [Pubmed]
  27. Pulmonary diffusing capacity in the presence of ventilation inhomogeneity. Saidel, G.M., Modarreszadeh, M. J. Appl. Physiol. (1987) [Pubmed]
  28. Methylprednisolone therapy for retinal laser injury. Solberg, Y., Dubinski, G., Tchirkov, M., Belkin, M., Rosner, M. Survey of ophthalmology. (1999) [Pubmed]
  29. Laser-induced thrombi in rat mesenteric vessels and antithrombotic drugs. Weichert, W., Pauliks, V., Breddin, H.K. Haemostasis (1983) [Pubmed]
  30. Immunocytochemical localization of basic fibroblast growth factor and glial fibrillary acidic protein after laser photocoagulation in the Royal College of Surgeons rat. Chu, Y., Humphrey, M.F., Alder, V.V., Constable, I.J. Australian and New Zealand journal of ophthalmology. (1998) [Pubmed]
  31. Formation process of two-dimensional networked gold nanowires by citrate reduction of AuCl4- and the shape stabilization. Pei, L., Mori, K., Adachi, M. Langmuir : the ACS journal of surfaces and colloids. (2004) [Pubmed]
  32. Incorporation of ethidium bromide in the Drosophila salivary gland approached by microspectrofluorometry: evidence for the presence of both free and bound dye in the nuclei of cells in viable conditions. Favard, C., Pager, J., Locker, D., Vigny, P. Eur. Biophys. J. (1997) [Pubmed]
  33. Lasers for otosclerosis: CO2 vs. Argon and KTP-532. Lesinski, S.G., Palmer, A. Laryngoscope (1989) [Pubmed]
  34. Long-term visual acuity after argon green laser photocoagulation of juxtafoveal choroidal neovascularization in highly myopic eyes. Ruiz-Moreno, J.M., Montero, J.A. European journal of ophthalmology. (2002) [Pubmed]
  35. Randomised trial of endoscopic argon laser photocoagulation in bleeding peptic ulcers. Vallon, A.G., Cotton, P.B., Laurence, B.H., Armengol Miro, J.R., Salord Oses, J.C. Gut (1981) [Pubmed]
  36. Laser trabeculoplasty induces stromelysin expression by trabecular juxtacanalicular cells. Parshley, D.E., Bradley, J.M., Fisk, A., Hadaegh, A., Samples, J.R., Van Buskirk, E.M., Acott, T.S. Invest. Ophthalmol. Vis. Sci. (1996) [Pubmed]
  37. MK-801 has neuroprotective and antiproliferative effects in retinal laser injury. Solberg, Y., Rosner, M., Turetz, J., Belkin, M. Invest. Ophthalmol. Vis. Sci. (1997) [Pubmed]
  38. Macular pigment shows ringlike structures. Berendschot, T.T., van Norren, D. Invest. Ophthalmol. Vis. Sci. (2006) [Pubmed]
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