Laser researches on livestock semen and oocytes: A brief review

Abdel‐Salam, Zienab; Harith, M. A.

doi:10.1016/j.jare.2014.11.006

Cited by 21 publications

(15 citation statements)

References 55 publications

(76 reference statements)

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“…The effect of laser irradiation of sperm depends on emission wavelength and the laser energy density encountering the sample. Irradiation procedures therefore need to consider output power of lasers, the use of continuous laser wave or pulse modes, the laser distance to cells and transmission rate of the laser light through plastic surrounding the sample (Abdel‐Salam & Harith, ; Corral‐Baqués, Rivera, Rigau, Rodríguez‐Gil, & Rigau, ). A recent study shows that short‐term (3 min) exposure of semen droplets on objective glass to LED light of different wavelengths with total power densities between 2.16 and 8.23 mW/cm 2 slightly stimulates sperm motility in asthenozoospermic men (Ban Frangez, Frangez, Verdenik, Jansa, & Virant Klun, ).…”

Section: Discussionmentioning

confidence: 99%

“…Several studies reported that red light irradiation of sperm with different laser sources improves motility and mitochondria function (Abdel‐Salam & Harith, ; Preece et al., ). Light‐emitting diodes (LED) can be effective alternative light sources, providing advantages such as broad beam width and cost‐efficiency (Rohringer et al., ).…”

Section: Introductionmentioning

confidence: 99%

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Irradiation of semen doses with LED‐based red light in a photo chamber does not improve in vitro quality of thermically stressed boar spermatozoa

Luther

Thi

Schäfer³

et al. 2018

Reprod Domestic Animals

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Recent reports indicate that stimulation of liquid-stored boar semen with red LED-based light improves sperm quality and reproductive performance in sow herds. So far, in vitro data after LED stimulation of whole semen doses are lacking. In this study, the effect of LED light exposure on the in vitro quality of boar spermatozoa after storage and thermic incubation was examined. Boar semen doses were stored at 17°C (n = 10) or 5°C (n = 6) in Beltsville Thawing Solution extender and then exposed to red LED light using a commercial photo chamber. During a subsequent long-term incubation at 38°C, neither sperm kinematic parameters nor mitochondria function or membrane integrity differed between control and treated samples (p > .05). It is concluded that stimulation of semen doses in the LED-photo chamber does not improve quality of thermically stressed boar sperm in vitro. Other than the sperm traits tested here might be involved in the previously reported improvement of in vivo fertility.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Irradiation of semen doses with LED‐based red light in a photo chamber does not improve in vitro quality of thermically stressed boar spermatozoa

Luther

Thi

Schäfer³

et al. 2018

Reprod Domestic Animals

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“…Research indicates that the mechanisms involved in laser interaction with cells are due to photon absorption by cellular photoreceptors that trigger chemical reactions such as glycolysis and oxidative phosphorylation. This could accelerate RNA transcription and DNA replication (Abdel-Salam et al 2015). LLLI is an efficient tool to modulate the granulosa cells and oocyte metabolism (Soares et al 20104).…”

Section: Discussionmentioning

confidence: 99%

Improvement of dairy cow embryo yield with low level laser irradiation

Palubinskas¹,

Žilaitis²,

Antanaitis³

2017

Polish Journal of Veterinary Sciences

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The goal of this study is to estimate the effects of low-level laser irradiation (LLLI) on the superovulatory response according to the number of corpora lutea (CL), follicles (F) and the embryo yield. In recent years, while searching for new, more efficient and organic methods to improve superovulatory response and embryo yield with respect to the conventional methods, low-level laser irradiation (LLLI) is a more sensitive and less costly technology that can be used to improve animal reproduction, namely, artificial insemination and the embryo production system. The dairy-cow donors were treated for superovulation with Pluset ® , at any time during the oestrus cycle, and the total dose per donor was 700 IU. The first group of the donors (n=25), test group (TG), was irradiated on the sacroiliac area for 180 seconds per day, from the 1 st to 11 th superovulatory treatment (ST) days in a row, with LLLI in the 870-970-nm wavelength, 65.93 J/cm dose, frequencies in the 20-2000 Hz range and pulse durations commonly in the range of about 1 second. For the second control group (CG) (n=25), the ST was performed without LLLI. After the ST, The mean number of CL in the right side ovaries in the TG was 25.43% (p<0.05) greater than in those of the CG. The number of total recovered and transferable embryos was greater in the TG compared with the CG by 28.97% (p<0.05) and 15.8% (p>0.05), respectively. With respect to conventional methods, LLLI can be used to improve the superovulatory response and embryo yield as a supplementary environment and animal-friendly method of treatment.

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“…Многочисленные исследования под-тверждают положительное влияние НИЛИ на спер-матозоиды различных животных, увеличивается их подвижность и содержание аденозинтрифос-фата (АТФ) [33][34][35][36][37][38][39][40][41], повышается продолжитель-ность жизни клеток и вероятность оплодотворе-ния. Именно повышение концентрации Ca 2+ , в том числе вызванное лазерным освечиванием, стиму-лирует работу митохондрий и синтез АТФ [31], что играет ключевую роль в обеспечении подвижности сперматозоидов.…”

Section: экспериментальные исследованияunclassified

“…Лазерная стимуляция является более эффек-тивной и менее затратной технологией, которая может быть использована на достаточно хорошей научной основе для совершенствования искус-ственного осеменения и эффективности эмбрио-нальных систем [33]. В результате лазерного освечивания in vitro повышается качество спер-мы быков, кроликов и птицы, используемой после длительного хранения в замороженном состоянии: увеличивается проникающая способность сперма-тозоидов (капацитация), индуцируется их акро-сомная реакция при снижении процента погибших клеток [38,[47][48][49].…”

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Experimental justification of laser therapy efficiency of men's infertility

et al. 2017

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Male infertility is a multifactorial syndrome, which includes a wide range of disorders. It is a symptom of many different pathological conditions affecting both the reproductive and other body systems: endocrine, nervous, blood-vascular, and immune systems. Low level laser therapy is a method of modern physiotherapy, in which the impact is carried out by low-intensity laser irradiation (LILI). It is widely used in all areas of modern medicine, due to its high efficiency, simplicity of use, the absence of contraindications and side effects. The results of russian and foreign experimental studies on the article subject were analyzed. A definite conclusion is drawn that low level laser therapy should be used as much as possible in the complex treatment of men with infertility, since the effectiveness of the method is not just high, but often has no alternatives. At the same time, the available low level laser therapy techniques should be widely used: locally, rectally, laser acupuncture, ILBI (intravenous laser blood irradiation), on the projection of various organs, paravertebrally, etc. All parameters of laser action should be set (wavelength; mode of operation; frequency for pulsed lasers; power; power density, determined by the method of exposure; exposure, localization), which are specified by the relevant regulatory documents and clinical recommendations. (For citation: Moskvin SV, Borovets SJu, Toropov VA. Experimental justification of laser therapy efficiency of men's infertility. Urologicheskie vedomosti. 2017;7(4):44-53. doi: 10.17816/uroved7444-53).

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Laser researches on livestock semen and oocytes: A brief review

Abstract: Graphical abstract

Cited by 21 publications

References 55 publications

Irradiation of semen doses with LED‐based red light in a photo chamber does not improve in vitro quality of thermically stressed boar spermatozoa

Irradiation of semen doses with LED‐based red light in a photo chamber does not improve in vitro quality of thermically stressed boar spermatozoa

Improvement of dairy cow embryo yield with low level laser irradiation

Experimental justification of laser therapy efficiency of men's infertility

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