کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5696607 | 1410267 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-centre assessment of nitroblue tetrazolium reactivity in human semen as a potential marker of oxidative stress
ترجمه فارسی عنوان
ارزیابی چند مرکزی از واکنش پذیری نیتروبلو تترازولیوم در اسپرم انسان به عنوان نشانگر بالقوه استرس اکسیداتیو
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
زنان، زایمان و بهداشت زنان
چکیده انگلیسی
The nitroblue tetrazolium (NBT) reaction as a tracer of oxidative stress was examined in 707 ejaculates from seven clinics. Semen was initially surveyed by classifying the NBT reaction using a pre-established rank for the Oxisperm® test based on three colourimetric levels: L1, low (n = 141 [20%]); L2, medium (n = 538 [76%]) and L3, high (n = 28 [4%]). L3 was indicative of a high level of superoxide anions. Halosperm® chromatin dispersion assay was used to analyse samples of ejaculates 30âmin after ejaculation; no difference was found in DNA fragmentation of L1 or L3; L3 category semen samples incubated for 24âh at 37oC showed a significantly faster rate (P < 0.001) of DNA damage than those in L1. The NBT reaction was further characterized in the ejaculates of 100 patients to determine the relative contribution of seminal plasma, spermatozoa, or both. Seminal plasma was the most significant fraction of
- O2â localization, whereas sperm fractions generated detectable reactive oxygen species in only 32% of the ejaculates. Formazan precipitates were primarily associated with the sperm mid-piece and seminal leukocytes; however, not all spermatozoa stained positive to formazan and not all leukocytes presented with equivalent production of superoxide anions.
- O2â localization, whereas sperm fractions generated detectable reactive oxygen species in only 32% of the ejaculates. Formazan precipitates were primarily associated with the sperm mid-piece and seminal leukocytes; however, not all spermatozoa stained positive to formazan and not all leukocytes presented with equivalent production of superoxide anions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reproductive BioMedicine Online - Volume 34, Issue 5, May 2017, Pages 513-521
Journal: Reproductive BioMedicine Online - Volume 34, Issue 5, May 2017, Pages 513-521
نویسندگان
Jaime Gosálvez, Lamberto Coppola, Jose Luis Fernández, Carmen López-Fernández, Alfredo Góngora, Ricardo Faundez, John Kim, Nabil Sayme, Moises de la Casa, Rebeca Santiso, Keith Harrison, Ashok Agarwal, Stephen Johnston, Sandro C. Esteves,