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Topic Review
Mechanisms of Vitamin D—Controlling Infections and Autoimmunity
Vitamin D is critical in protecting humans from hyper-inflammation, invasive pathogens, and autoimmunity risks and in maintaining good health. In contrast, low 25(OH)D status increases susceptibility to infections and developing autoimmunity. Data strongly suggested that maintaining serum 25(OH)D concentrations of more than 50 ng/mL is associated with significant risk reduction from viral and bacterial infections, sepsis, and autoimmunity. This is because, above this level, immune cells get sufficient diffusion of vitamin D and 25(OH)D from the circulation to generate intracellular calcitriol for their biological and physiological actions. Vitamin D deficiency treatment costs less than 0.01% of the cost of investigating worsening comorbidities associated with hypovitaminosis D. Despite cost-benefits, the prevalence of vitamin D deficiency remains high worldwide. This was clear among those who died from COVID-19 in 2020/21—most had severe vitamin D deficiency. Herein, the critical mechanisms of how immune cells maintain their robust activities are summarized.
  • 187
  • 15 Sep 2023
Topic Review
Viral Encoded miRNAs in Tumorigenesis
About 15% of all human cancers have a viral etiology. Although progress has been made, understanding the viral oncogenesis and associated molecular mechanisms remain complex. The discovery of cellular miRNAs has led to major breakthroughs. Interestingly, viruses have also been discovered to encode their own miRNAs. These viral, small, non-coding miRNAs are also known as viral-miRNAs (v-miRNAs).
  • 207
  • 15 Sep 2023
Topic Review
Proteomics in Ovarian Cancer
Ovarian cancer (OC) is the most lethal gynaecologic malignancy among women of advanced age (>40 years), especially in developed countries. The ability to identify ovarian cancer at its earliest stages remains a challenge. Proteomics analysis of OC, as well as their adaptive responses to therapy, can uncover new therapeutic choices, which can reduce the emergence of drug resistance and potentially improve patient outcomes. 
  • 193
  • 15 Sep 2023
Topic Review
Vitamin D and Its Neuroimmunological Roles
Vitamin D consists of a group of structurally related secosteroids, including cholecalciferol, ergocalciferol, 25-hydroxyvitamin D (25(OH)D, calcidiol), and 1,25-dihydroxyvitamin D (1,25(OH)2D, calcitriol). Vitamin D, a fat-soluble neuroactive prohormone, is increasingly recognized as not only a marker of overall health but also a necessary neurosteroid and immunomodulator, exerting pleiotropic effects on the neurological system. 
  • 183
  • 15 Sep 2023
Topic Review
Cell Therapy for Intervertebral Discs
An important mechanism for the development of intervertebral disc degeneration (IDD) is an imbalance between anti-inflammatory and pro-inflammatory cytokines. Therapeutic and non-therapeutic approaches for cytokine imbalance correction in IDD either do not give the expected result, or give a short period of time. This explains the relevance of high-tech medical care, which is part of specialized care and includes the use of new resource-intensive methods of treatment with proven effectiveness. 
  • 202
  • 15 Sep 2023
Topic Review
Iron Homeostasis
Iron accumulation and neuroinflammation are pathological conditions found in several neurodegenerative diseases, including Alzheimer’s disease (AD) and Parkinson’s disease (PD). Iron and inflammation are intertwined in a bidirectional relationship, where iron modifies the inflammatory phenotype of microglia and infiltrating macrophages, and in turn, these cells secrete diffusible mediators that reshape neuronal iron homeostasis and regulate iron entry into the brain.
  • 615
  • 15 Sep 2023
Topic Review
Neurodegenerative Diseases
Neurodegenerative diseases are affecting more and more people around the world. Current therapies only treat the symptoms and not the causes of the disease. However, the pathophysiology of these diseases is now better known. In the case of Alzheimer's disease and Parkinson's disease, some common mechanisms have been identified. One of the first known mechanisms is the accumulation of proteins: α-synuclein (Parkinson's disease), Tau (Alzheimer's disease) and β-amyloid (Alzheimer's disease and Parkinson's disease) proteins. Protein accumulation is related to a disruption of mitochondrial activity associated with cell death and oxidative stress. Inflammation is also another important mechanism, which is disrupted in these pathologies.
  • 1.7K
  • 15 Sep 2023
Topic Review
Non-Epithelial Ovarian Cancers
Non-epithelial ovarian cancers (NEOC) are a group of uncommon malignancies that mainly includes germ cell tumours (GCT), sex cord-stromal tumours (SCST), and some extremely rare tumours, such as small cell carcinomas and sarcomas. Each of these classifications encompasses multiple histologic subtypes. The aetiology and molecular origins of each sub-group of NEOC require further investigation, and our understanding on the genetic changes should be optimised.
  • 193
  • 15 Sep 2023
Topic Review
Anti-Angiogenic Agents in Prostate Cancer
Prostate cancer (PC) is the most common cancer in men and the second leading cause of cancer-related death worldwide. Antiagiogenic therapies have shown substantial benefits for many types of cancer but only a marginal benefit for PC. Despite the important role of angiogenesis in PC, clinical trials in refractory castration-resistant PC (CRPC) have demonstrated increased toxicity with no clinical benefit. A better understanding of the mechanism of angiogenesis may help to understand the failure of trials, possibly leading to the development of new targeted anti-angiogenic therapies in PC. These could include the identification of specific subsets of patients who might benefit from these therapeutic strategies. 
  • 248
  • 15 Sep 2023
Topic Review
Health-Promoting Effect of Lycopene
Lycopene is a compound of colored origin that shows strong antioxidant activity. The positive effect of lycopene is the result of its pleiotropic effect. The ability to neutralize free radicals via lycopene is one of the foundations of its pro-health effect, including the ability to inhibit the development of many civilization diseases.
  • 156
  • 15 Sep 2023
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