Influence of current study load and examinations on the character of sympathetic-adrenal system reactions of students

1986 ◽  
Vol 67 (6) ◽  
pp. 436-438
Author(s):  
A. A. Kamaeva ◽  
M. V. Sukhanova ◽  
A. L. Braunagel ◽  
A. Ya. Kozhevnikova ◽  
S. S. Khaletova

The aim of this work was to study the urinary excretion of adrenaline and noradrenaline, blood glucose content and determination of skin temperature of students at different stages of the educational process. The simultaneous study of these indicators, in our opinion, is justified on the basis of biochemical effects of catecholamines-stimulation of glycogenolysis and lipolysis, increase in blood glucose levels, as well as its further use by tissues for energy needs.

Author(s):  
Mohsen Askarbioki ◽  
Mojtaba Mortazavi ◽  
Abdolhamid Amooee ◽  
Saeid Kargar ◽  
Mohammad Afkhami-Ardekani ◽  
...  

Objective: Today, there are various non-invasive techniques available for the determination of blood glucose levels. In this study, the level of blood glucose was determined by developing a new device using near-infrared (NIR) wavelength, glass optical waveguide, and the phenomenon of evanescent waves. Materials and Methods: The body's interstitial fluid has made possible the development of new technology to measure the blood glucose. As a result of contacting the fingertip with the body of the borehole rod, where electromagnetic waves are reflected inside, evanescent waves penetrate from the borehole into the skin and are absorbed by the interstitial fluid. The electromagnetic wave rate absorption at the end of the borehole rod is investigated using a detection photodetector, and its relationship to the people's actual blood glucose level. Following precise optimization and design of the glucose monitoring device, a statistical population of 100 participants with a maximum blood glucose concentration of 200 mg/dL was chosen. Before measurements, participants put their index finger for 30 seconds on the device. Results: According to this experimental study, the values measured by the innovative device with Clark grid analysis were clinically acceptable in scales A and B. The Adjusted Coefficient of Determination of the data was estimated to be 0.9064. Conclusion: For future investigations, researchers are recommended to work with a larger statistical population and use error reduction trends to improve the accuracy and expand the range of measurements.


1995 ◽  
Vol 55 (5) ◽  
pp. 427-432 ◽  
Author(s):  
B. M. Jensen ◽  
P. Bjerring ◽  
J. S. Christiansen ◽  
H. ørskov

2018 ◽  
Vol 11 (3) ◽  
pp. 1543-1552
Author(s):  
Adi Parwata ◽  
Laksmiwati Sudiarta ◽  
M. N. Dina ◽  
Sutirta Yasa

Phenols and flavonoids compounds in their activities as antioxidants can reduce blood glucose levels (hypoglycemic) through a mechanism to inhibit cell damage at pancreatic Langerhans gland, inhibit glucose absorption in the intestine and cell resistance to insulin. Preliminary analysis shows that total phenol and flavonoid contens is 2099,5025 mg GAE / 100 g, and 8133,322 mg QE / 100 gram, Antioxidant capacity with IC50 = 12.58 mg / mL. LD50 = 6,355,3536 gram. This results revealad that the water extract of Gyrinops versteegii leaves can be developed as an alternative to natural antioxidant, safe for consumption and can reduce blood glucose in hyperglycemic Wistar rats. The results of the measurement of the effect of decreasing blood glucose content showed that the water extract of Gyrinops versteegii leaves at doses of 100, 200 and 400 mg / kgBW significantly (p <0.01) could reduce blood glucose contents in hyperglycemic Wistar rats. The activity of reducing blood glucose levels (hypoglycemic) with oral doses of water extract of Gyrinops versteegii leaves was 100,200 and 400 mg / kgBW was 53.6% (53.6 ± 5.8), 58.9% (58.9 ± 8.6 ) and 75.8% (75.8 ± 1.3). High contents of phenol and flavonoids allegedly a factor that causes water extract of Gyrinops versteegii leaves to reduce blood glucose levels in hyperglycemic Wistar rats.


2017 ◽  
Vol 4 (3) ◽  
pp. 244-247
Author(s):  
Thatit Nurmawati

Diabetes mellitus (DM) is a metabolic disorder with symptoms of polydipsi, polyuria, polyphagia, weight loss and tingling. The incidence of DM increased with the number of patients with type 2 DM more than type1 DM. Insulin resistance and deficiency is characteristic of type 2 diabetes. Streptozotocin (STZ) as a DM inducer model is better than alloxan by altering the physiological pancreas. The purpose of this study was to determine the physiological response and blood sugar levels of mice after exposure to STZ. Descriptive research design with the study subjects of 16 white wistar strains (Rattus norvegicus).  STZ is given 40mg / kg  BW for 3 days. Data collection is done 2 days after STZ last gift. Blood glucose  levels are obtained from  the end of the tail while the heart rate is measured  using a modified stethoscope. Data is presented in the mean ± SD. The results showed heart rate 500 ± 59.32 / min, weight 292,5 ± 65,26 (gr) and blood glucose content 237 ± 102.5 ml /dl. STZ responded to ratts resulting in physiological changes. Histologic observation of pancreatic cells is needed to determine the damage caused by STZ . Needed longer observation to see the response of ratts further.


1982 ◽  
Vol 99 (3) ◽  
pp. 410-415 ◽  
Author(s):  
Kin-ya Kameda ◽  
Shin-etsu Ono ◽  
Isao Koyama ◽  
Yasushi Abiko

Abstract. 2-[2-(4,5-dihydro-1H-imidazol-2-yl)-1-phenyl-ethyl] pyridine dihydrochloride sesquihydrate (DG-5128) is a new orally effective hypoglycaemic agent structurally unrelated to the known hypoglycaemics. DG-5128 was found to decrease blood glucose levels by stimulating insulin release, like the sulphonylurea hypoglycaemics. However, the study with the rat Langerhans islets in vitro indicated a great difference in mode of stimulation of insulin release between DG-5128 and a sulphonylurea hypoglycaemic, tolbutamide. DG-5128 significantly reversed α-adrenergic inhibition of the glucose-primed insulin release from the islets, while tolbutamide did not. From the comparison with the effects of phentolamine, yohimbine and prazosine, DG-5128 was strongly suggested to stimulate the glucose-primed insulin release through antagonizing at α2-adrenoreceptors on the B cells.


2017 ◽  
Vol 4 (4) ◽  
pp. 82 ◽  
Author(s):  
Catherine Todd ◽  
Paola Salvetti ◽  
Katy Naylor ◽  
Mohammad Albatat

2021 ◽  
Vol 8 (1) ◽  
pp. 83
Author(s):  
Dewita Rinowati ◽  
Hidayaturrahmah Hidayaturrahmah

Sumber energi dan biomarker terhadap kondisi fisiologis ikan dipengaruhi oleh faktor kadar glukosa darah. Penelitian ini bertujuan untuk mengetahui profil glukosa pada ikan gelodok (Periopthalmodon schlosseri) di Desa Tanipah dan Desa Kuala Lupak, Kabupaten Barito Kuala sebagai sumber pengetahuan. Metode yang digunakan adalah  GOD-PAP yaitu penetapan glukosa darah dari sampel serum dan plasma secara enzimatik menggunakan Glukosa Oksidase Para Amino Phenazone menghasilkan warna merah yang diukur dengan fotometer. Hasil yang didapatkan kadar glukosa rata-rata ikan gelodok dari pengambilan Desa Tanipah didapatkan 45,87 ± 13,6 mg/dL Pengambilan di Desa Kuala Lupak rata-rata kadar glukosa sebesar 49,75 ± 27,6 mg/dL. Glukosa ikan gelodok yang didapatkan dari kedua desa tersebut berada dibatas normal kadar glukosa darah pada ikan. Kata Kunci: Glukosa, darah, ikan gelodok, GOD-PAP, glikogen  Energy sources and biomarkers of fish physiological conditions are influenced by blood glucose levels. This study aimed to determine the glucose profile of the jellyfish (Periopthalmodon schlosseri) in Tanipah Village and Kuala Lupak Village, Barito Kuala Regency as a source of knowledge. The method used is GOD-PAP namely the determination of blood glucose from serum and plasma samples enzymatically using Glucose Oxidase The Amino Phenazone produces a red color as measured by a photometer. The results obtained by the average level of glucose in Mudskipper from the taking of Tanipah Village were 45.87 ± 13.6. Taking in the village of Kuala Lupak the average glucose level was 49.75 ± 27.6 mg / dL. Mudskipper fish glucose obtained from the two villages is within the normal limits of blood glucose levels in fish.


2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Eunjin Kwon ◽  
Hye-Young Joung ◽  
Shun-Mei Liu ◽  
Streamson C. Chua ◽  
Gary J. Schwartz ◽  
...  

AbstractThe central melanocortin system plays a fundamental role in the control of feeding and body weight. Proopiomelanocortin (POMC) neurons in the arcuate nucleus of the hypothalamus (ARC) also regulate overall glucose homeostasis via insulin-dependent and -independent pathways. Here, we report that a subset of ARC POMC neurons innervate the liver via preganglionic parasympathetic acetylcholine (ACh) neurons in the dorsal motor nucleus of the vagus (DMV). Optogenetic stimulation of this liver-projecting melanocortinergic pathway elevates blood glucose levels that is associated with increased expression of hepatic gluconeogenic enzymes in female and male mice. Pharmacological blockade and knockdown of the melanocortin-4 receptor gene in the DMV abolish this stimulation-induced effect. Activation of melanocortin-4 receptors inhibits DMV cholinergic neurons and optogenetic inhibition of liver-projecting parasympathetic cholinergic fibers increases blood glucose levels. This elevated blood glucose is not due to altered pancreatic hormone release. Interestingly, insulin-induced hypoglycemia increases ARC POMC neuron activity. Hence, this liver-projecting melanocortinergic circuit that we identified may play a critical role in the counterregulatory response to hypoglycemia.


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