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Topic Review
Multi-Disciplinary Approach to Colorectal Liver Metastasis
Colorectal cancer (CRC) is the second most common cause of cancer-related mortality in the United States. Despite best efforts, 5-year survival for unresectable metastatic CRC is only about 20%. CRC is a heterogeneous disease and the underlying genetic differences inform behavior, treatment strategy, and prognosis. Given the limitations of cytotoxic chemotherapy and the growing role of molecular profiling, research has focused on identifying and developing targeted therapies.
  • 303
  • 13 Jul 2023
Topic Review
Chronic Musculoskeletal Disorders Pain Management by Botulinum Toxin
Botulinum neurotoxin (BoNT), a product of Clostridium botulinum, reversibly inhibits the presynaptic release of the neurotransmitter acetylcholine at the neuromuscular junction. In addition, BoNT blocks the transmission of other substances involved in pain perception and, together with a soft-tissue anti-inflammatory effect, may play a role in analgesia. When first-line treatment fails, second-line therapies might include BoNT. Studies on chronic and recurrent pain using different mechanisms offer heterogenous results that must be validated and standardized. Plantar fasciitis, severe knee osteoarthritis, painful knee and hip arthroplasty, antalgic muscular contractures, and neuropathic and myofascial pain syndromes may benefit from the administration of BoNT. 
  • 309
  • 13 Jul 2023
Topic Review
Intracellular Antibodies for Drugs and Drug Discovery
The application of antibodies in cells was first shown in the early 1990s, and subsequently, the field of intracellular antibodies has expanded to encompass antibody fragments and their use in target validation and as engineered molecules that can be fused to moieties (referred to as warheads) to replace the Fc effector region of a whole immunoglobulin to elicit intracellular responses, such as cell death pathways or protein degradation. These various forms of intracellular antibodies have largely been used as research tools to investigate function within cells by perturbing protein activity. New applications of such molecules are on the horizon, namely their use as drugs per se and as templates for small-molecule drug discovery. The former is a potential new pharmacology that could harness the power and flexibility of molecular biology to generate new classes of drugs (herein referred to as macrodrugs when used in the context of disease control). Delivery of engineered intracellular antibodies, and other antigen-binding macromolecules formats, into cells to produce a therapeutic effect could be applied to any therapeutic area where regulation, degradation or other kinds of manipulation of target proteins can produce a therapeutic effect.
  • 275
  • 13 Jul 2023
Topic Review
Neurologic Symptoms of Long COVID
SARS-CoV-2, a single-stranded RNA coronavirus, causes an illness known as coronavirus disease 2019 (COVID-19). Long-term complications are an increasing issue in patients who have been infected with COVID-19 and may be a result of persistent viral-associated systemic and central nervous system inflammation or may be attributed to virus-induced microvascular blood clots. COVID-19 may incite changes in brain function with a wide range of lingering symptoms. Patients often experience fatigue and may note brain fog, sensorimotor symptoms, headaches and sleep disturbances. Prolonged neurological and neuropsychiatric symptoms are prevalent and can interfere substantially in everyday life, leading to a massive public health concern.
  • 631
  • 13 Jul 2023
Topic Review
Genetics of Primary Familial Brain Calcification
Primary familial brain calcification (PFBC), also known as Fahr’s disease, is a rare inherited disorder characterized by bilateral calcification in the basal ganglia according to neuroimaging. Other brain regions, such as the thalamus, cerebellum, and subcortical white matter, can also be affected. Among the diverse clinical phenotypes, the most common manifestations are movement disorders, cognitive deficits, and psychiatric disturbances. Although patients with PFBC always exhibit brain calcification, nearly one-third of cases remain clinically asymptomatic.
  • 301
  • 12 Jul 2023
Topic Review
Diagnostic Modalities of Endoscopic Ultrasound without Biopsy
Gastric subepithelial lesions (SELs) are intramural lesions that arise underneath the gastric mucosa. SELs can be benign, but can also be malignant or have malignant potential. Their correct identification is of vital importance for a successful management. Due to their location, standard luminal endoscopy cannot determine the exact nature of these lesions. Therefore, endosonography (EUS) alone or EUS with fine needle aspiration (FNA) or fine needle biopsy (FNB) have been established as the next step in the diagnostic algorithm.
  • 241
  • 12 Jul 2023
Topic Review
SSTR-based PET-CT in Neuroendocrine Tumors
Somatostatin receptor (SSTR) agonist-based Positron Emission Tomography-Computed Tomography (PET-CT) imaging is nowadays the mainstay for the assessment and diagnostic imaging of neuroendocrine neoplasms (NEN), especially in well-differentiated neuroendocrine tumors (NET) (World Health Organization (WHO) grade I and II). Major clinical indications for SSTR imaging are primary staging and metastatic workup, especially (a) before surgery, (b) detection of unknown primary in metastatic NET, (c) patient selection for theranostics and appropriate therapy, especially peptide receptor radionuclide therapy (PRRT), while less major indications include treatment response evaluation on and disease prognostication.
  • 299
  • 12 Jul 2023
Topic Review
Basic Factors Involved in Etiopathogenesis of Atopic Dermatitis
Atopic dermatitis (AD) is predominantly characterized by eczema, dry skin, and itching. These symptoms are age-dependent and often associated with other atopic diseases (allergic asthma, allergic rhinitis, and food allergies). 
  • 298
  • 12 Jul 2023
Topic Review
The Cutaneous Squamous Cell Carcinoma
Cutaneous squamous cell carcinoma (cSCC) arises from the abnormal proliferation of keratinocytes of the epidermis, most commonly due to UV-light-induced DNA damage. Although histopathological assessment is the gold standard for diagnosing cSCC, nascent optical imaging diagnostic modalities enable clinicians to perform “optical or virtual biopsy” in real-time. 
  • 366
  • 12 Jul 2023
Topic Review
Stable Coronary Artery Disease
Coronary revascularization is one of the most studied treatment modalities in cardiology; however, there is no consensus among experts about its indications in patients with stable coronary artery disease (SCAD). 
  • 308
  • 12 Jul 2023
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