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Topic Review
Clinical Psychology
Clinical psychology is an integration of science, theory, and clinical knowledge for the purpose of understanding, preventing, and relieving psychologically-based distress or dysfunction and to promote subjective well-being and personal development. Central to its practice are psychological assessment, clinical formulation, and psychotherapy, although clinical psychologists also engage in research, teaching, consultation, forensic testimony, and program development and administration. In many countries, clinical psychology is a regulated mental health profession. The field is generally considered to have begun in 1896 with the opening of the first psychological clinic at the University of Pennsylvania by Lightner Witmer. In the first half of the 20th century, clinical psychology was focused on psychological assessment, with little attention given to treatment. This changed after the 1940s when World War II resulted in the need for a large increase in the number of trained clinicians. Since that time, three main educational models have developed in the USA—the Ph.D. Clinical Science model (heavily focused on research), the Ph.D. science-practitioner model (integrating scientific research and practice), and the Psy.D. practitioner-scholar model (focusing on clinical theory and practice). In the UK and the Republic of Ireland, the Clinical Psychology Doctorate falls between the latter two of these models, whilst in much of mainland Europe, the training is at the masters level and predominantly psychotherapeutic. Clinical psychologists are expert in providing psychotherapy, and generally train within four primary theoretical orientations—psychodynamic, humanistic, cognitive behavioral therapy (CBT), and systems or family therapy. Clinical psychology is distinguished from psychiatry. Although practitioners in both fields are mental health professionals, clinical psychologists treat mental disorders through talk therapy and have a doctorate in Psychology or a Doctor of Psychology degree but cannot prescribe medicine. Psychiatrists are medical doctors who treat mental disorders through medication and have a medical degree. Five states, Louisiana, New Mexico, Illinois, Iowa, and Idaho, allow clinical psychologists to prescribe certain medications with completion of medical training, whereas most states only allow psychiatrists to prescribe medicine.
  • 3.1K
  • 01 Nov 2022
Topic Review
Nonparametric Limits of Agreement
The assessment of agreement in method comparison and observer variability analysis of quantitative measurements is usually done by the Bland-Altman Limits of Agreement, where the paired differences are implicitly assumed to follow a normal distribution. Whenever this assumption does not hold, the 2.5% and 97.5% percentiles are obtained by quantile estimation. In the literature, empirical quantiles have been used for this purpose. In this simulation study, we applied both sample, subsampling, and kernel quantile estimators as well as other methods for quantile estimation to sample sizes between 30 and 150 and different distributions of the paired differences. The performance of 15 estimators in generating prediction intervals was measured by their respective coverage probability for one newly generated observation. Our results indicated that sample quantile estimators based on one or two order statistics outperformed all the other estimators and can be used for deriving nonparametric Limits of Agreement. For sample sizes exceeding 80 observations, more advanced quantile estimators, such as the Harrell-Davis and estimators of Sfakianakis-Verginis type, which use all the observed differences, performed likewise well, but may be considered intuitively more appealing than simple sample quantile estimators that are based on only two observations per quantile.
  • 3.1K
  • 27 Oct 2020
Topic Review
EBV Lytic Induction therapy
Epstein-Barr virus (EBV) lytic induction therapy is an emerging virus-targeted therapeutic approach that exploits the presence of EBV in tumor cells to confer specific killing effects against EBV-associated malignancies. Efforts have been made in the past years to uncover the mechanisms of EBV latent-lytic switch and discover different classes of chemical compounds that can reactivate the EBV lytic cycle. Despite the growing list of compounds showing potential to be used in the lytic induction therapy, only a few are being tested in clinical trials with varying degrees of success. This review will summarize the current knowledge on EBV lytic reactivation, the major hurdles of translating the lytic induction therapy into clinical settings and highlight some potential strategies in the future development of this therapy for EBV-related lymphoid and epithelial malignancies.
  • 3.1K
  • 28 Oct 2020
Topic Review
Acetylcholinesterase Inhibitors
Acetylcholinesterase (AChE) inhibitors are the only drugs that have demonstrated success in slowing shrinkage (atrophy) of the cortex, hippocampus, and basal forebrain, major areas of Alzheimer's disease (AD)-associated brain damage and dementia. The main barrier to taking advantage of this new success in treating, or even preventing, AD is that the old available AChE inhibitors are weak reversible inhibitors that cause intolerable nausea, vomiting, and diarrhea if given in the higher doses needed. A promising new strategy for producing high-level AChE inhibition in the brain as needed for effective treatment of AD is the use of AChE inhibitors that are of a different type, the  irreversible inhibitors. 
  • 3.1K
  • 28 Oct 2020
Topic Review
Antibacterial Designs for Implantable Medical Devices
The uses of implantable medical devices are safer and more common since sterilization methods and techniques were established a century ago; however, device-associated infections (DAIs) are still frequent and becoming a leading complication as the number of medical device implantations keeps increasing.
  • 3.1K
  • 01 Aug 2022
Topic Review
Health-Promoting Beverages
Tea, a beverage made from the processed leaves of the tea plant, Camellia sinensis, and herbal infusions, were primarily consumed to their pleasant taste. Nowadays, are also consumed due to the existence of nutraceutical compounds in the herbs used, such as polyphenols.
  • 3.0K
  • 30 Oct 2020
Topic Review
Contraindications to Initiation of ECMO
Extracorporeal membrane oxygenation (ECMO) is increasingly used for acute respiratory failure with few absolute but many relative contraindications. The contraindications to the initiation of ECMO therapy are not uniformly agreed upon, and each center, as well as each provider involved in the indication for the initiation of ECMO, weights them differently. Whereas absolute contraindications immediately discourage ECMO therapy, relative contraindications should trigger a very thorough consideration of this option. Although relative contraindications should not per se exclude patients from a life-saving procedure such as ECMO, their concurrence may lead to the decision to forgo this procedure. When relative contraindications add up, they might accumulate to a point where they (should) be considered absolute contraindications.
  • 3.0K
  • 16 Sep 2021
Topic Review
Hydroxycinnamic Acids
Hydroxycinnamic acids (HCAs) are important natural phenolic compounds present in high concentrations in our food products. Dietary intake and nutritional importance of HCAs is briefly described along with their pharmacokinetic properties, which have a high impact on HCAs to reach the target tissue in order to exert their biological activities. A range of health beneficial effects were observed for HCAs and in recent years, also for their metabolites formed in gastrointestinal tract, liver and kidneys. Therefore, metabolism is of high importance since HCAs’ metabolites could retain, enhance or lose the biological activity of corresponding parental HCAs. The biological activities and health benefits of HCAs' metabolites are also briefly reviewed.
  • 3.0K
  • 05 Nov 2020
Topic Review
Pathophysiology of Spinal Cord Injury
Spinal cord injury (SCI) is a disabling condition that disrupts motor, sensory, and autonomic functions. The lack of effective therapeutic strategies for patients with SCI reflects its complex pathophysiology that leads to the point of no return in its function repair and regeneration capacity. Herein, a detailed description of the physiology and anatomy of the spinal cord and the pathophysiology of SCI is presented. 
  • 3.0K
  • 23 Dec 2022
Topic Review
Vascular Endothelial Growth Factors
Vascular endothelial growth factors (VEGFs) are primary regulators of blood and lymphatic vessels. Hemangiogenic VEGFs (VEGF-A, PlGF, and VEGF-B) target mostly blood vessels, while the lymphangiogenic VEGFs (VEGF-C and VEGF-D) target mostly lymphatic vessels. Blocking VEGF-A is used today to treat several types of cancer (“antiangiogenic therapy”). However, in other diseases, it would be beneficial to do the opposite, namely to increase the activity of VEGFs. For example, VEGF-A could generate new blood vessels to protect from heart disease, and VEGF-C could generate new lymphatics to counteract lymphedema. Clinical trials that tried to stimulate blood vessel growth in ischemic diseases have been disappointing so far, and the first clinical trials targeting the lymphatic vasculature have progressed to phase II. Antiangiogenic drugs targeting VEGF-A such as bevacizumab or aflibercept neutralize the growth factor directly. However, since VEGF-C and VEGF-D are produced as inactive precursors, novel drugs against the lymphangiogenic VEGFs could also target the enzymatic activation of VEGF-C and VEGF-D. Because of the delicate balance between too much and too little vascular growth, a detailed understanding of the activation of the VEGF-C and VEGF-D is needed before such concepts can be converted into safe and efficacious therapies.
  • 3.0K
  • 30 Mar 2021
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