Search results for " activity"
showing 10 items of 4540 documents
Sarcopenia and Covid-19: A New Entity?
2021
As the world comes into terms with the persistent existence of the coronavirus disease 19 (COVID-19) pandemic, the scientific and medical communities have started shifting their attention to the long-term side effects of the disease. Specialists have acknowledged that numerous COVID-19 survivors, especially those who suffered severe complications and endured prolonged bedrest, may require continuous monitoring and rehabilitative care. In this chapter, the authors discuss factors that may predispose individuals to acute sarcopenia secondary to COVID-19 infection or sarcopenic obesity secondary to altered diet and physical activity from prolonged confinement. Challenges in nutrition are highl…
Neurodegenerative changes are prevented by Erythropoietin in the pmn model of motoneuron degeneration
2014
Motoneuron diseases are fatal neurodegenerative disorders characterized by a progressive loss of motoneurons, muscle weakness and premature death. The progressive motor neuronopathy (pmn) mutant mouse has been considered a good model for the autosomal recessive childhood form of spinal muscular atrophy (SMA). Here, we investigated the therapeutic potential of Erythropoietin (Epo) on this mutant mouse. Symptomatic or pre-symptomatic treatment with Epo significantly prolongs lifespan by 84.6% or 87.2% respectively. Epo preserves muscle strength and significantly attenuates behavioural motor deficits of mutant pmn mice. Histological and metabolic changes in the spinal cord evaluated by immunoh…
Effect of physical activity on COVID-19 symptoms: A narrative review
2021
In 2019, a new condition caused by the COVID-19, became a global pandemic, presenting a disparate symptomatological picture. The immune response to the virus depends on multiple factors, making the practice of physical exercise an important enhancer of the immune system, but it is unknown what effects it could have on the very different symptoms. In order to achieve and summarize the most outstanding information on the influence of the different types and parameters of physical exercise on the immune system and symptoms presented by COVID-19, it was decided to carry out a review of the literature in the databases PubMed and Medline until August 2020. The results showed that while high inten…
Mechanisms of C-reactive protein-induced blood-brain barrier disruption.
2009
Background and Purpose— Increased mortality after stroke is associated with brain edema formation and high plasma levels of the acute phase reactant C-reactive protein (CRP). The aim of this study was to examine whether CRP directly affects blood–brain barrier stability and to analyze the underlying signaling pathways. Methods— We used a cell coculture model of the blood–brain barrier and the guinea pig isolated whole brain preparation. Results— We could show that CRP at clinically relevant concentrations (10 to 20 μg/mL) causes a disruption of the blood–brain barrier in both approaches. The results of our study further demonstrate CRP-induced activation of surface Fcγ receptors CD16/32 fo…
The influence of Ca2+ antagonists on the ciliary activity of the guinea pig trachea.
1990
The ciliary activity of the guinea pig tracheal respiratory epithelium was measured using a photoelectric device. Fourteen animals were administered 75 mg diltiazem/kg body weight 2 days, 1 day and 4 h prior to the investigation. Thirteen animals served as controls. In the pretreated group, the mean ciliary stroke frequency (13.4 +/- 3.0 Hz) was significantly lower (P = 0.02) than in the control group (16.6 +/- 3.7 Hz). The application of aerosolized 0.3 mmol/l nifedipine solution on the tracheal preparations of the control animals also significantly reduced the stroke frequency (P = 0.02). The ciliary activity never dropped beyond a frequency of about 8 Hz. The most probable interpretation…
Focal elevation of liver microsomal epoxide hydrolase in early preneoplastic stages and its behaviour in the further course of hepatocarcinogenesis.
1981
Abstract Treatment of rats with N-nitrosomorpholine (NNM) for 7 weeks led to a focal increase in liver microsomal epoxide hydrolase (EH) as early as 2 weeks after withdrawal of the carcinogen. This treatment also leads to hyperplastic nodules and liver tumors, but much later. At the same early time point, ATPase activity was decreased in the same islands. Most of these areas already had increased γ-glutamyltranspeptidase activity. The increase in EH at this early time point was more distinct than the decrease in ATPase which has thus far been considered a suitable marker of the earliest stages in hepatocarcinogenesis. The focal increase in EH was also observed in all benign hepatomas, but n…
Histamine-sensitive adenylate cyclase of human gastric mucosa: a model for H2-receptor excitation.
1978
Recent studies revealed that human gastric mucosa contains a histamine-sensitive adenylate cyclase which is almost completely localized within the acid-secreting area of the stomach. In an attempt to further characterize the effector system of histamine’s action, we compared the effects of H 1 — and H 2-receptor agonists upon the adenylate cyclase in human fundic gastric mucosa.
Guidelines for Youth Sports Clubs to Develop, Implement, and Assess Health Promotion Within Its Activities
2014
The settings approach to health promotion is a world-known concept concerning settings like city, hospital, school, and workplace. The concept has also been used in some regionally specific settings, such as island, prison, or university. However, there are still many, often noninstitutional, settings that have a lot of potential but have not yet been recognized. One of the newcomers is the youth sports club, which has the potential to reach a lot of children and adolescents and is effective, via its casual educational nature based on voluntary participation. According to research, health is an important aim for most youth sports clubs, but it has not been converted into practical actions.…
Effect of oral magnesium supplementation on physical performance in healthy elderly women involved in a weekly exercise program: A randomized control…
2014
Background: Magnesium deficiency is associated with poor physical performance, but no trials are available on how magnesium supplementation affects elderly people’s physical performance. Objective: The aim of our study was to investigate whether 12 wk of oral magnesium supplementation can improve physical performance in healthy elderly women. Design: In a parallel-group, randomized controlled trial, 139 healthy women (mean 6 SD age: 71.5 6 5.2 y) attending a mild fitness program were randomly allocated to a treatment group (300 mg Mg/d; n = 62) or a control group (no placebo or intervention; n = 77) by using a computer-generated randomization sequence, and researchers were blinded to their …
Nutrition and physical activity in the prevention and treatment of sarcopenia: systematic review
2017
Summary This systematic review summarizes the effect of\ud combined exercise and nutrition intervention on muscle mass\ud and muscle function. A total of 37 RCTs were identified.\ud Results indicate that physical exercise has a positive impact\ud on muscle mass and muscle function in subjects aged 65 years\ud and older. However, any interactive effect of dietary supplementation\ud appears to be limited.\ud Introduction In 2013, Denison et al. conducted a systematic\ud review including 17 randomized controlled trials\ud (RCTs) to explore the effect of combined exercise and\ud nutrition intervention to improve muscle mass, muscle\ud strength, or physical performance in older people.\ud They c…