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Topic Review
Circular RNAs (CircRNAs)
CircRNAs are a recently discovered class of ncRNA molecules. They are formed during the process of RNA transcript maturation. Structurally, circRNAs are covalently closed by a connection between a downstream donor and upstream acceptor RNA splice sites linked by a phosphodiester bond.
  • 277
  • 29 Nov 2023
Topic Review
Genetic Characteristics and Peculiarities of the isPMRCC
Isolated pancreatic metastases of renal cell carcinoma (IsPMRCC) are a rare manifestation of metastatic, clear-cell renal cell carcinoma (RCC) in which distant metastases occur exclusively in the pancreas. In addition to the main symptom of the isolated occurrence of pancreatic metastases, the entity surprises with additional clinical peculiarities: (a) the unusually long interval of about 9 years between the primary RCC and the onset of pancreatic metastases; (b) multiple pancreatic metastases occurring in 36% of cases; (c) favourable treatment outcomes with a 75% 5-year survival rate; and (d) volume and growth-rate dependent risk factors generally accepted to be relevant for overall survival in metastatic surgery are insignificant in isPMRCC.
  • 150
  • 29 Nov 2023
Topic Review
OCT and OCT-A in Identifying Multiple Sclerosis Biomarkers
The prevalence of multiple sclerosis (MS) has been increasing among young people in developing countries over the last years. With the continuous development of new technology, the diagnosis and follow-up of these patients has received new parameters that physicians may use in their practice. 
  • 165
  • 28 Nov 2023
Topic Review
Metabolism of Cancer Stem Cells
Cancer stem cells (CSCs) are a rare cancer cell population, responsible for the facilitation, progression, and resistance of tumors to therapeutic interventions. This subset of cancer cells with stemness and tumorigenic properties is organized in niches within the tumor microenvironment (TME) and presents altered regulation in a variety of metabolic pathways, including glycolysis, oxidative phosphorylation (OXPHOS), as well as lipid, amino acid, and iron metabolism. 
  • 229
  • 28 Nov 2023
Topic Review
Phenotypes and Symptoms of HFpEF and Sleep-Disordered Breathing
Heart failure with preserved ejection fraction (HFpEF) is emerging as a widespread disease with global socioeconomic impact. Patients with HFpEF show a dramatically increased morbidity and mortality, and, unfortunately, specific treatment options are limited. One such comorbidity is sleep-disordered breathing (SDB), which affects up to 58% (or up to 80% in certain cohorts) of HFpEF patients. SDB presents in HFpEF patients either as predominantly obstructive sleep apnea (OSA) or as predominantly central sleep apnea (CSA).
  • 165
  • 28 Nov 2023
Topic Review
Leukemia Inhibitor Factor in Neurocognitive Preservation
HIV-associated neurocognitive disorders (HANDs) continue to impact patients despite antiretroviral therapy. A combination of antiretroviral therapies can diminish the HIV viral load to near undetectable levels, but fails to preserve neurocognitive integrity. The cytokine leukemia inhibitory factor (LIF) has shown neuroprotective properties that could mitigate neurodegeneration in HANDs. The LIF promotes neurogenesis, neural cell differentiation, and survival. Combination antiretroviral therapy reduces severe forms of HANDs, but neurocognitive impairment persists; additionally, some antiretrovirals have additional adverse neurotoxic effects. The LIF counteracts neurotoxic viral proteins and limits neural cell damage in models of neuroinflammation. Adding the LIF as an adjuvant therapy to enhance neuroprotection merits further research for managing HANDs. 
  • 246
  • 28 Nov 2023
Topic Review
Ischemic Brain Injury
Cerebral ischemic stroke, a condition falling within the realm of acute vascular disorders affecting the circulation in the brain, stands as a prominent global cause of disability and mortality. Extensive investigations into glial plasticity and their intricate interactions with other cells in the central nervous system have predominantly relied on studies conducted on experimental animals, including rodents and primates. However, valuable insights have also been gleaned from in vivo studies involving poststroke patients, utilizing highly specialized imaging techniques. Following the attempts to map brain cells, the role of various transcription factors in modulating gene expression in response to cerebral ischemia is gaining increasing popularity. Although the results obtained thus far remain incomplete and occasionally ambiguous, they serve as a solid foundation for the development of strategies aimed at influencing the recovery process after ischemic brain injury.
  • 213
  • 28 Nov 2023
Topic Review
Endoscope Capsules
There are multiple benefits offered by capsule endoscopy (CE). First, the patients do not need sedation to undergo a CE analysis. The CE can analyze the entire GI tract from the esophagus, passing through the stomach, until the small intestine, which could not be properly analyzed through conventional endoscopy. The capsule has the size of a conventional vitamin capsule, and it can be easily swallowed, moving naturally through the GI tract until excretion. This fact indicates a painless procedure compared with the discomfort suffered by the long endoscopy sessions.
  • 371
  • 28 Nov 2023
Topic Review
Theranostic Imaging Surrogates for Targeted Alpha Therapy
Most targeted alpha therapy (TAT) radionuclides lack or possess insufficient co-emitted positrons or gamma rays for acquiring higher-quality positron emission tomography (PET) or single-photon emission computed tomography (SPECT) scans. This motivated the development of chemically similar diagnostic imaging surrogates for TAT radionuclides. As the current supply of alpha-emitting radionuclides is scarce, utilizing imaging surrogates also has the potential to open more opportunities for TAT research to facilities without access to alpha-emitting radionuclides and serve as a bridge for centers planning to introduce TAT radiopharmaceuticals. Since many of these surrogates can be synthesized in existing cyclotron facilities, this can facilitate radiopharmaceutical developments.
  • 179
  • 27 Nov 2023
Topic Review
Anti-Tumor and Oncogenic Cytokines in Lung Cancer Patients
Lung cancer is currently the second leading cause of cancer death worldwide. In recent years, checkpoint inhibitor immunotherapy (ICI) has emerged as a new treatment. A better understanding of the tumor microenvironment (TMJ) or the immune system surrounding the tumor is needed. Cytokines are small proteins that carry messages between cells and are known to play an important role in the body’s response to inflammation and infection. Cytokines are important for immunity in lung cancer. They promote tumor growth (oncogenic cytokines) or inhibit tumor growth (anti-tumour cytokines) by controlling signaling pathways for growth, proliferation, metastasis, and apoptosis. The immune system relies heavily on cytokines. They can also be produced in the laboratory for therapeutic use. Cytokine therapy helps the immune system to stop the growth or kill cancer cells. Interleukins and interferons are the two types of cytokines used to treat cancer. 
  • 267
  • 27 Nov 2023
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