25 research outputs found

    CELL DEATH DIFFERENTIATION IN BLACK HEADED RAMS SPERMATOZOA, USING FLUORESCENT LABELED ANNEXIN V

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    Double staining kit of Annexin V Cy3.18/6-CFDA was used to investigate the changes in phospholipide asymmetry after treating sperm cells with dexamethasone. The % of spermatozoa with registered translocation of PS in treated with dexamethazone groups at the 10-th min and in control no treated varied from 2.74%±0.65 to 2.30%±0.89. After the 5 hour of incubation these % increased to 39.83±3.33 for the treated group and 23.44±1.12 for the control. It was concluded that Annexin V binding assay is more sensitive in the detection of deterioration in membrane function than other conventional methods such as motility analysis and supravital techniques

    ОПРЕДЕЛЯНЕ А ЕКСПРЕСИЯТА НА ФОСФАТИДИЛСЕРИН ПРИ СПЕРМАТОЗОИДИ В РАННА АПОПТОЗА ЧРЕЗ ФЛУОРЕСЦЕНТНО БИЛЯЗАН АНЕКСИН V

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    Double staining kit of Annexin V Cy3.18/6-CFDA was used to investigate the changes in phospholipide asymmetry after treating sperm cells with dexamethasone. The % of spermatozoa with registered translocation of PS in treated with dexamethazone groups at the 10-th min and in control no treated varied from 2.74%±0.65 to 2.30%±0.89. After the 5 hour of incubation these % increased to 39.83±3.33 for the treated group and 23.44±1.12 for the control. It was concluded that Annexin V binding assay is more sensitive in the detection of deterioration in membrane function than other conventional methods such as motility analysis and supravital techniques.Приложен е кит за двойно оцветяване с Анексин V Cy3.18 и 6-CFDA, даващ възможност за диференциране на апоптични от мъртви клетки. Процентът сперматозоиди с регистрирана експресия на ФС при свежи нетретирани сперматозоиди – контролна проба и експериментални, третирани с дексаметазон на 10-тата минута, варира от 2.30%±0.89 до 2.74%±0.65. След съхранение, на 5-я час този процент нараства до 23.44±1.12 за контролата и до 39.83±3.33 за опитната група. С настоящето изследване се доказва, че Анексин V теста е по-чувствителен за определяне промените в ПМ, в сравнение с конвенционалните методи на изследване за подвижност и преживяемост на сперматозоидите

    ОПРЕДЕЛЯНЕ А ЕКСПРЕСИЯТА НА ФОСФАТИДИЛСЕРИН ПРИ СПЕРМАТОЗОИДИ В РАННА АПОПТОЗА ЧРЕЗ ФЛУОРЕСЦЕНТНО БИЛЯЗАН АНЕКСИН V

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    Double staining kit of Annexin V Cy3.18/6-CFDA was used to investigate the changes in phospholipide asymmetry after treating sperm cells with dexamethasone. The % of spermatozoa with registered translocation of PS in treated with dexamethazone groups at the 10-th min and in control no treated varied from 2.74%±0.65 to 2.30%±0.89. After the 5 hour of incubation these % increased to 39.83±3.33 for the treated group and 23.44±1.12 for the control. It was concluded that Annexin V binding assay is more sensitive in the detection of deterioration in membrane function than other conventional methods such as motility analysis and supravital techniques.Приложен е кит за двойно оцветяване с Анексин V Cy3.18 и 6-CFDA, даващ възможност за диференциране на апоптични от мъртви клетки. Процентът сперматозоиди с регистрирана експресия на ФС при свежи нетретирани сперматозоиди – контролна проба и експериментални, третирани с дексаметазон на 10-тата минута, варира от 2.30%±0.89 до 2.74%±0.65. След съхранение, на 5-я час този процент нараства до 23.44±1.12 за контролата и до 39.83±3.33 за опитната група. С настоящето изследване се доказва, че Анексин V теста е по-чувствителен за определяне промените в ПМ, в сравнение с конвенционалните методи на изследване за подвижност и преживяемост на сперматозоидите

    Prospects for Creation of Cardioprotective and Antiarrhythmic Drugs Based on Opioid Receptor Agonists

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    It has now been demonstrated that the μ, δ(1), δ(2), and κ(1) opioid receptor (OR) agonists represent the most promising group of opioids for the creation of drugs enhancing cardiac tolerance to the detrimental effects of ischemia/reperfusion (I/R). Opioids are able to prevent necrosis and apoptosis of cardiomyocytes during I/R and improve cardiac contractility in the reperfusion period. The OR agonists exert an infarct‐reducing effect with prophylactic administration and prevent reperfusion‐induced cardiomyocyte death when ischemic injury of heart has already occurred; that is, opioids can mimic preconditioning and postconditioning phenomena. Furthermore, opioids are also effective in preventing ischemia‐induced arrhythmias
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