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Wyszukujesz frazę "autonomic" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Current concepts in clinical and laboratory assessments of autonomic nervous system activity
Autorzy:
Dobrek, L.
Thor, P.
Powiązania:
https://bibliotekanauki.pl/articles/3378.pdf
Data publikacji:
2015
Wydawca:
Instytut Medycyny Wsi
Tematy:
clinical assessment
laboratory assessment
autonomic nervous system
autonomic test
heart rate variability
noradrenaline
neuropeptide
Opis:
Introduction and objective. As the autonomic nervous system (ANS) dysfunction is present in course of many disorders, an objective assessment of the ANS function is very important. In practice, the assessment is difficult, and based rather on indirect analysis of autonomically-controlled cardiovascular reflexes, than on direct recording of activity of central or peripheral autonomic structures. The aim of our paper was to discuss briefly current, clinical and scientific ANS investigations, as well as possible future methods of autonomic activity evaluation. A brief description of the state of knowledge. The review presents a short outline of autonomic function assessments based on clinical autonomic tests (e.g. “Ewing’s battery”) and discusses the heart rate variability (HRV) study, as currently popular and widespread option of analysis of the ANS activity. Other, complementary methods, including the baroreceptor sensitivity testing, microneurography or plasma norepinephrine measurement were also mentioned. The article also provides premises related to the determination of selected neuropeptides in plasma or saliva as an innovative concept of autonomic activity assessment. Summary. The available, clinical, non-invasive methods used for assessment of the ANS function are still relatively sparse and, in fact, a surrogate for direct ANS assessment. New methods of autonomic tension determination are still needed that would allow a more complete and reliable assessment. Reports of potential new laboratory markers of the ANS activity (NPY and VIP assay) bring some hope.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2015, 09, 1
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Resting heart rate variability and plasma noradrenaline level as a measurement of autonomic nervous system activity in mature, aging rats
Autorzy:
Dobrek, Łukasz
Kaszuba-Zwoińska, Jolanta
Baranowska, Agnieszka
Skowron, Beata
Thor, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/972585.pdf
Data publikacji:
2016
Wydawca:
Instytut Medycyny Wsi
Tematy:
autonomic nervous system
heart rate variability
aging
rat
Opis:
Introduction and objective. Aging is a process that also affects the autonomic nervous system (ANS) making it less adaptable to environmental and intrinsic stimuli and affecting its ability to maintain body homeostasis. The aim of this study was to estimate the resting ANS function using heart rate variability (HRV) method and by noradrenaline measurement in aging, 2–12-months-old rats. Materials and method. Resting 15-minute-long ECG recordings were performed in anaesthetized rats with a subsequent spectral HRV analysis. Basic non-normalized HRV components in the range of very low (VLF), low (LF) and high (HF) frequency, along with the total HRV spectrum power (TP) were estimated. Moreover, normalized LF (nLF) and normalized HF (nHF) were calculated. Blood samples were also collected to assay plasma noradrenaline (NA) level. Results. In the overall assessment, plasma noradrenaline level as well as both TP and all non-normalized HRV components demonstrated a tendency for reduction when compared the first (2nd) and last (12th) months. In the case of nLF and nHF, a trend of nLF predominance in the 2nd and 3rd month was revealed while an inverse relation was observed from the 6th month on, with nHF superiority. Overall, males reached comparable or slightly higher NA and non-normalized HRV values compared to females, although most differences were not statistically significant. A parallel decline of LF (starting from the 10th month) and HF (from the 6th month) was demonstrated in both male and female animals. Female rats had a little more stable nLF and nHF course in the study time. Conclusions. Rat ANS aging is associated with global HRV decrease with parallel plasma NA decline, although without selective impairment of individual (sympathetic/parasympathetic) ANS components.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2016, 10, 1; 50-56
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diabetic autonomic neuropathy of the gastrointestinal tract - etiopathogenesis, diagnosis, treatment and complications
Autorzy:
Kuzemko, Dorota
Rymarz, Ewa
Prystupa, Andrzej
Dzida, Grzegorz
Mosiewicz, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/972715.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
diabetic neuropathies
diabetes complications
diabetes mellitus
gastrointestinal autonomic neuropathy
Opis:
Introduction. Late complications of diabetes mellitus are a serious challenge for physicians treating diabetic patients. Micro- and macro-angiopathic changes are of the most severe sequels. However, it should be remembered that the effects of long-term diabetes are also associated with changes in the peripheral nervous system. One of the complications most troublesome for patients is diabetic autonomic neuropathy of the gastrointestinal (GI) tract. Objective. The review article presents the pathogenesis of diabetic neuropathy of the autonomous gastrointestinal tract, and advances in the diagnosis and treatment of this disease. The study used materials in the database which demonstrate current standards of conduct, based on the principles of EBM. Brief description of the state of knowledge. Diabetic neuropathy is one of the most common complications of diabetes mellitus. According to epidemiologists, it affects 10% to even 100% of patients with long-standing disease. Damage to the nervous fibres mainly results from hyperglycaemia, which leads to the typical symptoms of dysfunction of GI tract segments. The main additional examinations include abdominal ultrasound (US) and abdominal X-ray. In cases with oesophageal disorders accompanied by dysphagia, gastroscopy is found useful for excluding possible neoplastic lesions. The gold standard for evaluation of gastric emptying is radioisotopic scintigraphy, however it is available only in some specialistic departments. Other recommended methods include: manometry, EGG, insulin tests, NMR and expiratory tests. To date, the problem has been managed symptomatically; in special cases, surgical interventions have been required. Conclusions. At present, a wide array of treatment options is available, including new forms of drugs and less radical surgical procedures carried out in numerous centres worldwide.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2017, 11, 1; 6-9
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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