Clinical manifestations and results of cystoscopy in women with interstitial cystitis/bladder pain syndrome Orıgınal Article NEPHROLOGY Cite this article as: Sholan R. Clinical manifestations and results of cystoscopy in women with interstitial cystitis/bladder pain syndrome.
Relevance. Interstitial cystitis/painful bladder syndrome (IC/PBS) is a debilitating condition of pain and discomfort in the bladder. Due to the limited number of published studies in this area, there is a need for further research. Objective: to evaluate the level of nerve growth factor and its relationship with various types of leukocytes and mast cells of the bladder tissue in animals with experimental models of interstitial cystitis/painful bladder syndrome. Material and methods. IC/PBS modeling was performed on 38 female rabbits. The IC/PBS modeling was created by introducing HCl into the bladder (group 1), urine into the wall of the bladder (group 2), and physiological saline (group 3). Nerve growth factor (NGF) was determined by the ELISA method, and white blood cells along with mast cells in tissues were determined by histological processing. Results. A statistically significant high level of NGF in blood and urine was observed on the 1st day after IC/PBS initiation in groups 13 and in group 2 respectively. Two weeks after the initiation of IC/PBS in animals of group 1 a decrease in the level of FRN in the blood by 29.3% and its increase in urine by 14.3% was observed; in group 2 an increase by 65.5% (p 0.01) in blood and by 52.7% (p 0.01) in urine was observed and in group 3 a decrease by 30.8% (p 0.05) in blood and by 30.5% (p 0.05) in urine was observed. The greatest number of leukocytes was determined in the tissue of the bladder in animals of the 1st group. Mast cell infiltration was observed in groups 1 and 2. Correlation between the NGF in blood and urine and between NGF and the number of leukocytes and mast cells was revealed. Findings. In IC/PBS, the level of NGF in the blood and urine is increased. Indicators of nerve growth factor in blood and urine are correlated with multidirectional connections. High mast cell infiltration occurs when damage to the integrity of the bladder by urinary toxicity. Nerve growth factor correlates with leukocyte and mast cell infiltration in the bladder tissue. Conclusion. During IC/PBS, the level of NGF in the blood and urine is increased. Levels of nerve growth factor in blood and urine are correlated with multidirectional connections. High mast cell infiltration occurs as a response to the damage of the bladder wall integrity caused by urinary toxicity. The level of nerve growth factor correlates with the bladder tissue intensity of infiltration with leukocytes and mast cells.
BACKGROUND: Biomarker identification fulfills the need for simple, accurate, and non-invasive diagnostic methods for interstitial cystitis/painful bladder syndrome (IC/PBS). The simultaneous study of cytokines and growth factors is essential for understanding the role of biomarkers. AIM: This work determines the concentration of interleukins (IL) 6 and 8, nerve growth factor (NGF), heparin-binding epidermal growth factor (HB-EGF), and their relationship in patients with IC/PBS. MATERIALS AND METHODS: This study examined 126 female patients with IC/PBS, with a mean age of 46.714.0 years. The disease duration averaged 6.02.8 years. The control group consisted of 20 women without IC/PBS, with a mean age of 35.39.7 years. The level of IL-6 and IL-8 in blood serum and urine was determined by ELISA. The NGF and HB-EGF levels were determined by ELISA using the appropriate test kits. Statistical analysis was performed using SPSS software version 15.0. The Students t-test and Spearmans correlation coefficient were calculated. RESULTS: In patients with IC/PBS, blood levels of IL-6 and IL-8 exceeded the control indicator by 65.99% (t=4.62, p=0.000) and by 67.14% (t=2.81, p=0.006), respectively, the NGF level exceeded it by 8.82% (t=0.10, p=0.920), and the HB-EGF level decreased by 30.84% (t=0.62, p=0.537). In urine, the level of IL-6 in IC/PBS was increased by 52.94% (t=7.62, p=0.000), IL-8 level was increased by 57.53% (t=2.01, p=0.049), NGF was increased by 50.44% (t=2.06, p=0.043), and HB-EGF level was increased by 56.44% (t=2.01, p=0.049). Cytokines correlated with growth factors with weakly bound in blood and urine (p 0.05). A strong, direct relationship was registered between the urine levels of NGF and HB-EGF (r=+0.987, p 0.05). CONCLUSIONS: Correlations between IL-6 and IL-8 with NGF and HB-EGF in urine indicate an increased risk of damage to the bladder epithelium. The increase in urinary HB-EGF is a response to a significant increase in urinary NGF and may be a bladder epithelial defense mechanism.
Шолан Р.Ф. Особенности им мунопатогенеза интерстициального цистита/синдрома болезненного мочевого пузыряРеспубликанский лечебно-диагностический центр Министерства здравоохранения Азербайджанской Республики, AZ1122, г. Баку, Азербайджан Резюме Введение. Современные исследования подтверждают, что тучные клетки играют центральную роль в патогенезе и патофизиологии интерстициального цистита/синдрома болезненного мочевого пузыря (ИЦ/СБМП). Знания о патофизиологии ИЦ/СБМП необходимы, поскольку они могут помочь в диагностике этой патологии.Цель исследования -определение экспрессии цитокинов и содержания тучных клеток в слизистой мочевого пузыря, а также их взаимосвязи у пациентов с ИЦ/СБМП.Материал и методы. Обследованы 126 женщин с клинически диагностированным ИЦ/СБМП, средний возраст -46,7 ± 14,0 года. Концентрацию интерлейкинов (ИЛ)-1β, ИЛ-6, ИЛ-8, фактора некроза опухоли α (ФНОα) в сыворотке крови определяли методом иммуноферментного анализа (ИФА). Тучные клетки идентифицированы в биоптатах слизистой мочевого пузыря, взятых в процессе цистоскопии, с помощью гистологического анализа. Статистический анализ выполнен с использованием программы Statistica в Microsoft Excel release 6 (StatSoft, USA). Рассчитан коэффициент корреляции Пирсона.
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