Local and general reactions have been studied after subjecting a rabbit eye to dispersed helium-neon laser radiation, 8 x 10(-6) wt/cm-2, 10 min daily for 10 days. There were recorded increase of blood filling of the uveal tract of the eye, changes in the indices of systemic hemodynamics, systolic and diastolic pressure, stroke and minute volume of blood volume, activation of separate links of antioxidant system connected both with oxidation-reduction of thiol disulfide system and the functioning of antiperoxide enzymes. The activation of antioxidant system has a local character, the changes in the retina of the eye and pigmented epithelium is expressed stronger than in the peripheral blood. The results obtained speak about relationship between the stimulating effect of helium-neon laser radiation on the rabbit eye and activation of antioxidant system.
Download full-text PDF |
Source |
---|
Sensors (Basel)
September 2024
V.I. Il'ichev Pacific Oceanological Institute FEB RAS, 690041 Vladivostok, Russia.
This paper describes the design and principle of operation of a 20 m laser strainmeter of unequal-arm type created on the basis of a Michelson interferometer and frequency-stabilized helium-neon laser. The interferometry methods used allow the measurement of the displacement of an Earth's crust section on the base of the laser strainmeter with an accuracy of 30 pm in the frequency range from 0 (conventionally) to 1000 Hz. This laser strainmeter, when connected to an accurate time system providing an accuracy of 1 μs, should structurally become a part of the laser interferometric seismoacoustic observatory, consisting of spatially separated laser strainmeters installed in various regions of Russia.
View Article and Find Full Text PDFBMC Plant Biol
August 2024
Pharmacognosy Department, Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Background: In the past two decades, the impacts of Helium-Neon (He-Ne) laser on stress resistance and secondary metabolism in plants have been studied, but the signaling pathway which by laser regulates this process remains unclear. Therefore, the current study sought to explore the role of RBOH-dependent signaling in He-Ne laser-induced salt tolerance and elicitation of secondary metabolism in Salvia officinalis. Seeds were primed with He-Ne laser (6 J cm) and peroxide hydrogen (HO, 5 mM) and 15-old-day plants were exposed to two salinity levels (0, 75 mM NaCl).
View Article and Find Full Text PDFInt J Low Extrem Wounds
July 2024
Integrated Center for Medical Specialties, Parnaíba, PI, Brazil.
Diabetic foot ulcers (DFUs) result in tissue damage or impairment of deeper structures that affect quality of life. The impacts are numerous, and even after a long treatment period, 65% of patients experience recurrence. Among the interventions used to accelerate the healing process of DFUs, photobiomodulation therapy (PBMT) is a painless, noninvasive, and low-cost treatment.
View Article and Find Full Text PDFWorld J Clin Cases
May 2024
Departments of Four Neurology, The Second Hospital of Heilongjiang Province, Harbin 150028, Heilongjiang Province, China.
Background: Lumbar radiculopathy spondylosis is a relatively common orthopedic disease with a high incidence rate. It most commonly occurs in the lumbar 4-5 and lumbar 5-sacral 1 vertebrae, which account for approximately 95% of cases. It mostly occurs in people aged 30-50 years old and greatly affects their quality of life.
View Article and Find Full Text PDFPhotodermatol Photoimmunol Photomed
January 2024
Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Background: Vitiligo can be challenging to treat and exhibit an unpredictable clinical course. Phototherapy in the form of visible light can achieve both repigmentation and depigmentation outcomes in vitiligo, with minimal associated adverse events. This review focuses on the mechanistic understandings and clinical outcomes of visible light-based treatments for vitiligo.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!