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Topic Review
Biofilms on Medical Devices
Biofilm is complex and consists of bacterial colonies that reside in an exopolysaccharide matrix that attaches to foreign surfaces in a living organism. Biofilm frequently leads to nosocomial, chronic infections in clinical settings. Since the bacteria in the biofilm have developed antibiotic resistance, using antibiotics alone to treat infections brought on by biofilm is ineffective. 
  • 403
  • 06 Jul 2023
Topic Review
Spaceflight Associated Neuro-Ocular Syndrome (SANS)
Spaceflight associated neuro-ocular syndrome (SANS) is a unique neuro-ophthalmic phenomenon that has been observed in astronauts who have undergone long-duration spaceflight. The syndrome is characterized by distinct imaging and clinical findings including optic disc edema, hyperopic refractive shift, posterior globe flattening, and choroidal folds. SANS serves a large barrier to planetary spaceflight such as a mission to Mars and has been noted by the National Aeronautics and Space Administration (NASA) as a high risk based on its likelihood to occur and its severity to human health and mission performance. While it is a large barrier to future spaceflight, the underlying etiology of SANS is not well understood. However, several well-developed hypotheses have been proposed and countermeasures have been developed.
  • 403
  • 10 Aug 2023
Topic Review
Natural Ingredients from Trás-os-Montes Region
The natural cosmetics market has grown since consumers became aware of the concept of natural-based ingredients. A significant number of cosmetics have an ecological impact on the environment and carry noxious and chemically potent substances. Thus, the use of natural and organic cosmetics becomes increasingly important since it is clear that topical treatment withcosmeceuticals can help improve skin rejuvenation. A substantial investigation into the benefits that fruits and plants can bring to health is required. Studies have shown that antigenotoxic properties are linked to anti-aging properties. Several studies have shown potential antigenotoxicity in natural ingredients such as Almonds (Prunus dulcis), Elderberry (Sambucus nigra), Olives (Olea europaea), and Grapes (Vitis vinifera). This review presents an overview of research conducted on these natural ingredients, the most common in the Northeast of Portugal. This region of Portugal possesses the most organic farmers, and ingredients are easily obtained. The Northeast of Portugal also has climatic, topographic, and pedological differences that contribute to agricultural diversity.
  • 403
  • 24 Sep 2021
Topic Review
Service-Learning Intervention on Loneliness and Ageism
Service-learning is an effective intervention to solve social issues. Given that the COVID-19 pandemic exacerbated the loneliness level of everyone and especially senior individuals, this kind of pandemic should not deter people from capitalizing on technology and engaging senior individuals in virtual interactions to alleviate loneliness burden. While the cost of such interaction is minimal, the gain can be substantial given the negative effects of loneliness on health outcomes. Service-learning is a two edged-sword that can both solve a social issue and train students in social engagement. Therefore, college programs with a special focus on social issues could incorporate service-learning in their curriculum as it has proven to be an effective and efficient means to both educate students and solve social issues, such as hunger, racism and discrimination, ageism, poverty, homelessness, physical disability, education, and legislative advocacy.
  • 403
  • 10 Jun 2022
Topic Review
Detraining in Athletes and COVID-19
The COVID-19 pandemic has affected many people in general and athletes in particular. This has led to a series of restrictions, which from a pathophysiological point of view, may affect the athlete’s performance in the short and long term. The restrictions basically affect training and eating habits, disturbing physical condition, as well as psychological behavior and general health status. Several aspects of systemic alterations caused by the SARS-CoV-2 virus and the resultant COVID-19 disease have been currently explored in the general population. Researchers believe that the most important element to take into account is the neuromuscular aspect, due to the implications that this system entails in motion execution and coordination. In this context, deficient neuromuscular control when performing dynamic actions can be an important risk factor for injury. 
  • 402
  • 11 May 2022
Topic Review
Microbiota in Shaping Women’s Health
A properly colonized human microbiota contributes to the proper functioning of the body. The composition of the natural flora changes depending on age, health, living conditions, and the use of antimicrobial agents: antibiotics, disinfectants, and some cosmetics. The human body is diversely populated with microorganisms and undergoes constant changes under the influence of various factors, and its proper composition is extremely important for the proper functioning of the body.
  • 402
  • 09 Jan 2023
Topic Review Peer Reviewed
Oxidative Stress in Relation to Aging and Exercise
Oxidative stress is an imbalance between oxidants and antioxidants in favor of the oxidants, resulting in disruption of redox signaling and control and causing molecular damage. Oxidative stress is related to a variety of diseases, for example, cardiovascular diseases, neurodegenerative diseases, infections, and cancer. It might be that oxidative stress, and, more specifically, reactive oxygen species (ROS), affects longevity in a subtle way through signaling. Possible therapies to reduce oxidative stress in the elderly are nutritional intervention (for example, caloric restriction (CR)) and exercise. Exercise is associated with favorable changes in the expression of antioxidant enzymes and the oxidative stress status in general. A diet with CR also seems to be a promising way to reduce oxidative stress by decreasing oxidant emission and improving antioxidant mechanisms. A better understanding of where the antioxidant mechanisms in the elderly fail could be a big step forward in developing new therapies (such as exercise or diet) that prevent oxidative damage and cellular dysfunction with age.
  • 402
  • 25 Aug 2022
Topic Review
Nutritional Considerations during Spaceflights
The main nutritional concerns during a spaceflight include the sufficient provision of energy to counteract the negative energy balance, which is often experienced by astronauts, the prevention of a deficiency in micronutrients, and fluid and sodium management. Furthermore, of utmost importance is the provision of specific nutrients to face spaceflight-induced pathophysiological events.
  • 402
  • 28 Nov 2022
Topic Review
Reproductive Nanotoxicity of Carbon Nanoparticles
Carbon nanoparticles have unique chemical and physical properties that make them an excellent material that can be applied in many fields of human activity, including industry, food processing, the pharmaceutical industry, or medicine. Although it has a high degree of biocompatibility, possible toxic effects on different tissue types must also be taken into account. Carbon nanoparticles are known to be toxic to the respiratory, cardiovascular, nervous, digestive system, etc., and they also have a negative effect on reproduction and offspring development. 
  • 401
  • 25 Aug 2022
Topic Review
Management of Rheumatoid Arthritis
Rheumatoid Arthritis (RA) is a chronic autoimmune condition characterized by symptoms of inflammation and pain in the joints. RA is estimated to have a worldwide prevalence of 0.5–1%, with a predominance in females. 
  • 400
  • 22 Oct 2021
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