Role of autonomous and endocrine factors in immunotropic effects of nitrogenous metabolites in patients with chronic pyelonephritis

Гоженко

et al. 2022

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Background. Earlier we showed, by constructing regression models, that plasma nitrogenous metabolites (uric acid, urea, creatinine and bilirubin) are able to influence the state of the trait anxiety, autonomic and central nervous and endocrine systems. In this study of the same cohort, other methodological approaches were used. Materials and Methods. The object of observation were almost healthy volunteers: 30 females (30÷76 y) and 31 males (24÷69 y). In basal conditions determined plasma levels of nitrogenous metabolites as well as cortisol, aldosterone, testosterone, triiodothyronine and calcitonin, estimated the severity of the trait and reactive anxiety, recorded the ongoing HRV and EEG. After 4 or 7 days, repeated testing was performed. Results. By the method of cluster analysis, four groups were created, the members of which differ minimally from each other in terms of the constellation of nitrogenous metabolites, but differ maximally from the members of other groups. Using the method of discriminant analysis, it was found that nitrogenous clusters differ from each other in terms of sex, age, trait anxiety, as well as 30 neuro-endocrine parameters. Conclusion. The obtained data confirm and supplement previous data on the physiological psycho-neuro-endocrine activity of plasma nitrogenous metabolites.

Section: Discussionsupporting

confidence: 65%

Psycho-neuro-endocrine accompaniments of individual variants of nitrogenous metabolites exchange

Гоженко

et al. 2022

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“…Although AhR expression decreases from the embryonic period into adult life [28], several physiological functions remain in the adult brain, which include the regulation of neurotransmitter levels, blood-brain barrier functions, and immune responses [13,70]. By the way, immunotropic effects of bilirubin were found in previous studies of our laboratory [32][33][34][35][36]48].…”

Section: Fig 3 Efferent and Afferent Control Of Cardiac Function [43]mentioning

confidence: 81%

Relationships between plasma levels of nitrogenous metabolites and some psycho-neuro-endocrine parameters

Гоженко

et al. 2022

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Background. It was recently shown by our group that bilirubin has a neurotropic activity. It is also shown that endogenous uric acid exerts a noticeable modulating effect on neuro-endocrine adaptation factors. In this study, we supplemented the constellation both of subjects of influence with other nitrogenous metabolites - urea and creatinine, and the objects of influence - with plasma levels of the main adaptation hormones and the severity of trait and reactive anxiety. Materials and Methods. The object of observation were almost healthy volunteers: 30 females (30÷76 y) and 31 males (24÷69 y). In basal conditions determined plasma levels of nitrogenous metabolites as well as cortisol, aldosterone, testosterone, triiodothyronine and calcitonin, estimated the severity of the trait and reactive anxiety, recorded the ongoing HRV and EEG. After 4 or 7 days, repeated testing was performed. Results. By constructing regression models, it was found that direct bilirubin determines the levels of psycho-neuro-endocrine parameters by 66,0%, free bilirubin by 56,7%, uric acid by 40,8%, creatinine by 37,6%, and urea - by 31,1%. Taken together, nitrogenous plasma metabolites determine the severity of trait, but not reactive anxiety, plasma levels of testosterone, cortisol and triiodothyronine, but not calcitonin and aldosterone, as well as a number of HRV and EEG parameters by 70,6%. Conclusion. Nitrogenous plasma metabolites, even in the absence of uremia, are able to influence the state of the psyche, autonomic and central nervous and endocrine systems, apparently through aryl hydrocarbon and adenosine receptors of neurons and endocrinocytes and/or directly.

“…At the same time, the hypothesis about the role of cytokines in the neurotropic effects of uric acid has the right to be considered. As part of the single project "Nitrogenous metabolites and the neuro-endocrine-immune complex", our laboratory studied the relationship between plasma uric acid and immunity parameters in the same volunteers [16][17][18][19][20][24][25][26][27]31,40].…”

Section: Fig 18 Clusters Of Relationships Between Plasma Uric Acid An...mentioning

confidence: 99%

Sexual dimorphism in relationships between of plasma uric acid and some psycho-neuro-endocrine parameters

Żukow

et al. 2022

Background. Earlier we found that effects of plasma nitrogenous metabolites as urea, creatinine, and bilirubin on neuro-endocrine parameters, as well as anxiety, are significantly different in men and women of different ages. The purpose of this study is to analyze the relationships between the plasma uric acid level and some psycho-neuro-endocrine parameters in the same cohort. Materials and Methods. The object of observation were almost healthy volunteers: 31 males (24÷69 y) and 30 females, from among them 18 postmenopausal (48÷76 y) and 12 of reproductive age (30÷45 y). In basal conditions we determined plasma levels of uric acid and adaptation hormones, estimated the severity of the trait and reactive anxiety, recorded the ongoing HRV and EEG. After 4 or 7 days, repeated testing was performed. Results. By uric acid regression models with stepwise exclusion, it was found that in men plasma uric acid downregulates the PSD of β-rhythm in P4 and δ-rhythm in others 4 loci, but upregulates the Asymmetry of δ-rhythm, variability of α-rhythm, PSD of θ-rhythm in P3 and O1 loci, Entropy of EEG in T4 as well as Testosterone plasma level. The measure of determination is 54,5%. In postmenopausal women, uricemia downregulates the Amplitude of β-rhythm and its PSD in 8 loci as well as sympathetic tone, but upregulates the PSD of HF and VLF bands HRV, Testosterone plasma level, PSD of θ-rhythm in F3 and O2 loci as well as the Laterality of δ-rhythm. The degree of determination of neuro-endocrine parameters is 94,4%. In women of reproductive age uricemia upregulates the Asymmetry and Amplitude of β-rhythm and its PSD in 6 loci, the Amplitude and Laterality of θ-rhythm and its PSD in F8 locus, as well as the PSD of α-rhythm in F8 locus. The degree of positive determination of EEGs parameters is 95,5%. Conclusion. Plasma uric acid has a modulating effect on neuro-endocrine parameters, but this effect is significantly different in men and women of different ages, which is due, apparently, to the influence of sex hormones on the expression of adenosine receptors in neurons.