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Topic Review
Antioxidants and Female Reproductive Function
Treatment with antioxidants is increasingly used to slow down aging processes in different organs of the human body, including those implicated in female fertility. There is a plethora of different natural, synthetic or semi-synthetic medicines available on the market; most of them can be purchased without medical prescription. Even though the use of antioxidants, even under conditions of auto-medication, was shown to improve many functions related to female infertility related to oxidative stress, the lack of medical control and supervision can lead to an overmedication resulting in an opposite extreme, reductive stress, which can be counterproductive with regard to reproductive function and produce various adverse health effects in general.
  • 548
  • 29 Mar 2022
Topic Review
Antioxidants and Male Fertility
Spermatozoa are physiologically exposed to reactive oxygen species (ROS) that play a pivotal role on several sperm functions through activation of different intracellular mechanisms involved in physiological functions such as sperm capacitation associated-events. However, ROS overproduction depletes sperm antioxidant system, which leads to a condition of oxidative stress (OS). Subfertile and infertile men are known to present higher amount of ROS in the reproductive tract which causes sperm DNA damage and results in lower fertility and pregnancy rates. Thus, there is a growing number of couples seeking fertility treatment and assisted reproductive technologies (ART) due to OS-related problems in the male partner. Interestingly, although ART can be successfully used, it is also related with an increase in ROS production. This has led to a debate if antioxidants should be proposed as part of a fertility treatment in an attempt to decrease non-physiological elevated levels of ROS. However, the rationale behind oral antioxidants intake and positive effects on male reproduction outcome is only supported by few studies. 
  • 531
  • 16 Aug 2021
Topic Review
Antioxidants in Arrhythmia Treatment
Antioxidants are substances that can prevent damage to cells caused by free radicals. Production of reactive oxygen species and the presence of oxidative stress play an important role in cardiac arrhythmias.
  • 604
  • 15 Jun 2022
Topic Review
Antioxidants in Diabetes, Vascular Injury, Hypoxia, Atherosclerosis, Allergies
Oxidative and reductive stress are deviations from the optimal conditions when the capacity of cellular redox buffer systems is exceeded. Both conditions are harmful for cellular function and viability. Antioxidant systems include small molecules, such as ascorbate, α-tocopherol, GSH, many food additives and spices, the enzymes superoxide dismutases (SOD), catalase and glutathione peroxidases (GPx), proteins peroxiredoxins, thioredoxins and others.
  • 221
  • 15 Aug 2023
Topic Review
Antioxidants in Foods of Various Diets
Any agent with the ability to either quench free radicals or prevent the generation of pro-oxidant molecules, such as reactive oxygen species (ROS), can be considered an antioxidant.
  • 555
  • 09 Mar 2022
Topic Review
Antioxidants in Hops
Hop plant (Humulus lupulus L.) has been used by humans for ages, presumably first as a herbal remedy, then in the manufacturing of different products, from which beer is the most largely consumed. Female hops cones have different useful chemical compounds, an important class being antioxidants, mainly polyphenols.
  • 682
  • 10 Feb 2022
Topic Review
Antioxidants in Knee Osteoarthritis
Knee osteoarthritis (KOA) is a chronic multifactorial pathology and a current and essential challenge for public health, with a negative impact on the geriatric patient’s quality of life.
  • 652
  • 14 Jul 2021
Topic Review
Antioxidants supplementation in cardiovascular diseases
Oxidative stress may be defined as an imbalance between reactive oxygen species (ROS) and the antioxidant system to counteract or detoxify these potentially damaging molecules. This phenomenon is a common feature of many human disorders such as cardiovascular disease. Many of the risk factors, including smoking, hypertension, hypercholesterolemia, diabetes, and obesity are associated with an increased risk of developing cardiovascular disease involving an elevated oxidative stress burden, either due to enhanced ROS production or decreased antioxidant protection. There is a number of therapeutic options to treat oxidative stress-associated cardiovascular diseases. Numerous studies have focused on the utility of antioxidant supplementation. However, whether antioxidant supplementation has any preventive and/or therapeutic value in cardiovascular pathology is still a matter of debate. 
  • 708
  • 08 Mar 2021
Topic Review
Antiparasitic Mebendazole for the Treatment of Brain Cancers
Cancer ranks as a leading cause of death and a significant barrier to increasing life expectancy in every country. According to estimates from the World Health Organization (WHO) in 2019, cancer is the first or second leading cause of death before age 70 in 112 of 183 countries and ranks third or fourth in 23 countries. Tumor treatments usually consist of chemotherapy, radiotherapy, surgery, targeted therapy, immunotherapy, and endocrine therapy that can be used individually or in combination, depending on the stage and type of tumor and diagnosis. Several factors reduce the practical improvement of a cancer patient’s prognosis. Drug-untreatable targets, chemoresistance, tumor heterogeneity, and metastases formation are significant barriers to the effective cure of cancer patients. Despite intense preclinical and clinical research efforts, the survival rate of patients suffering from the most aggressive cancer types has not yet improved, mainly due to therapeutic failure. Moreover, nearly all anticancer medications on the market have serious adverse effects; therefore, new, safer anticancer drugs are desirable.
  • 2.3K
  • 19 Jan 2023
Topic Review
Antiphospholipid Mediated Arteriovenous Fistula Complications
Antiphospholipid antibody (aPL)-persistent positivity is frequent in hemodialysis (HD) patients. Native arteriovenous fistula (AVF) complications such as stenosis and thrombosis are among the most important causes of morbidity and mortality in hemodialysis patients. The association between aPL positivity and AVF thrombosis seems to be well established.
  • 455
  • 10 Jan 2024
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