Gold Nanoparticles and Chitosan as Innovative Compounds in Medicine and Cosmetology:A Review of Current Applications.

The medical and cosmetic industries have developed in recent years, there has been a growing demand for new materials. Gold nanoparticles (Au NPs) and chitosan (CS) have been known and used for many years. Unfortunately, despite their numerous advantages and possible applications, such materials may possess certain disadvantages and limitations that constitute a problem in medical or cosmetic applications.

Cyclodextrin Inclusion Complexes with Hydrocortisone-Type Corticosteroids.

The hydrocortisone-type corticosteroid (HTC) group includes valuable active pharmaceutical ingredients (APIs) such as hydrocortisone, hydrocortisone acetate, cortisone acetate, tixocortol pivalate, prednisolone, methylprednisolone, and prednisone. Unfortunately, those APIs are characterized by low solubility, which hampers their application and reduces their therapeutic efficacy. The low polarity of HTC molecules allows them to form inclusion complexes with various cyclodextrins (CDs); however, as shown in this review, the type of applied CDs has a major impact on the final properties of the formed complex.

Studying the Effect of Reducing Agents on the Properties of Gold Nanoparticles and Their Integration into Hyaluronic Acid Hydrogels.

Gold nanoparticles (Au NPs) are a promising target for research due to their small size and the resulting plasmonic properties, which depend, among other things, on the chosen reducer. This is important because removing excess substrate from the reaction mixture is problematic. However, Au NPs are an excellent component of various materials, enriching them with their unique features.

Synergetic Effect of β-Cyclodextrin and Its Simple Carbohydrate Substituents on Complexation of Folic Acid and Its Structural Analog Methotrexate.

Folic acid (FA) and its structural analog, anticancer medicine methotrexate (MTX), are known to form host/guest complexes with native cyclodextrins, of which the most stable are formed with the medium-sized β-cyclodextrin. Based on our research, proving that simple sugars (D-glucose, D-galactose, and D-mannose) can form adducts with folic acid, we envisioned that combining these two types of molecular receptors (cyclodextrin and simple carbohydrates) into one may be beneficial for the complexation of FA and MTX. We designed and obtained host/guest inclusion complexes of FA and MTX with two monoderivatives of β-cyclodextrin-substituted at position 6 with monosaccharide (glucose, G-β-CD) and disaccharide (maltose, Ma-β-CD).

Detection of the Mutation in Circulating Free Nucleic Acids as a Biomarker of Thyroid Cancer: A Review.

: Liquid biopsy is a method that could potentially improve the management of thyroid cancer (TC) by enabling the detection of circulating tumor DNA and RNA (ctDNA, ctRNA). The mutation appears to be the most representative example of a biomarker in liquid biopsy, as it is the most specific mutation for TC and a target for molecular therapeutics. The aim of this review is to summarize the available data on the detection of the mutation in liquid biopsy in patients with TC.

Polish diagnostic and therapeutic recommendations for adrenocortical carcinoma.

Advances in the diagnosis and treatment of adrenocortical carcinoma (ACC), along with the development of new therapeutic and diagnostic methods, have prompted a team of experts to formulate the first Polish guidelines for managing ACC. This article presents the diagnostic and therapeutic recommendations resulting from the discussion of specialists from various medical specialities, who participated in a series of online meetings aimed at developing consistent and effective recommendations under the National Oncology Strategy. These guidelines aim to optimise ACC treatment in Poland through coordinated efforts of multidisciplinary specialist teams, ensuring an effective and modern approach.

Secretome of brain microvascular endothelial cells promotes endothelial barrier tightness and protects against hypoxia-induced vascular leakage.

Cell-based therapeutic strategies have been proposed as an alternative for brain and blood vessels repair after stroke, but their clinical application is hampered by potential adverse effects. We therefore tested the hypothesis that secretome of these cells might be used instead to still focus on cell-based therapeutic strategies. We therefore characterized the composition and the effect of the secretome of brain microvascular endothelial cells (BMECs) on primary in vitro human models of angiogenesis and vascular barrier.

Screening for depression in chronic haemodialysis patients as a part of care in dialysis setting: a cross-sectional study.

Background: Depressive disorder is common among haemodialysis patients. The purpose of this study was to explore approaches to diagnosing depression in the context of a real-life setting, with the view of creating practical recommendations. It also aimed to evaluate the prevalence of depression and dementia.

Direct Readout of Homo- vs Heterochiral Ligand Shell of Quantum Dots.

The chiroptical activity of various semiconductor inorganic nanocrystalline materials has typically been tested using circular dichroism or circularly polarized luminescence. Herein, we report on a high-throughput screening method for identifying and differentiating chiroptically active quantum-sized ZnO crystals using Raman spectroscopy combined with principal component analysis. ZnO quantum dots (QDs) coated by structurally diverse homo- and heterochiral aminoalcoholate ligands (- and -1-amino-2-indanolate, 2-amino-1-phenylethanolate, and diphenyl-2-pyrrolidinemethanolate) were prepared using the one-pot self-supporting organometallic procedure and then extensively studied toward the identification of specific Raman fingerprints and spectral variations.

The Optimization of the One-Pot Synthesis of Au@SiO Nanostructures: Modification with Dansyl Group and Their Fluorescent Properties.

This work describes the optimization of the one-pot synthesis of fine nanostructures based on nanogold (Au NPs) and silica (SiO). The obtained nanomaterials were characterized by Transmission Electron Microscopy (TEM and by the method of spectroscopes such as UV-Vis Spectroscopy and Fourier Transform Infrared Spectroscopy (FT-IR). In addition, the measurement of the zeta potential and size of the obtained particles helped present a full characterization of Au@SiO nanostructures.

Pyruvate dehydrogenase-E1α deficiency presenting as generalized dystonia: A genetic diagnosis with important clinical implications.

Pyruvate dehydrogenase complex (PDC) deficiency is a genetic mitochondrial disease mostly associated with severe lactic acidosis, rapid progression of neurological symptoms and death during childhood. We present a 33-year-old male with PDC deficiency caused by a Val262Leu mutation in PDHA1gene. He demonstrated generalized dystonia affecting trunk and upper extremities and paraparesis as the most significant features, with onset of symptoms at age 8.

Fungal community composition predicts forest carbon storage at a continental scale.

Forest soils harbor hyper-diverse microbial communities which fundamentally regulate carbon and nutrient cycling across the globe. Directly testing hypotheses on how microbiome diversity is linked to forest carbon storage has been difficult, due to a lack of paired data on microbiome diversity and in situ observations of forest carbon accumulation and storage. Here, we investigated the relationship between soil microbiomes and forest carbon across 238 forest inventory plots spanning 15 European countries.

Medical Applications of Silver and Gold Nanoparticles and Core-Shell Nanostructures Based on Silver or Gold Core: Recent Progress and Innovations.

Nanoparticles (NPs) of noble metals such as silver (Ag NPs) or gold (Au NPs) draw the attention of scientists looking for new compounds to use in medical applications. Scientists have used metal NPs because of their easy preparation, biocompatibility, ability to influence the shape and size or modification, and surface functionalization. However, to fully use their capabilities, both the benefits and their potential threats should be considered.

Relationship between the Expression of CHK2 and p53 in Tumor Tissue and the Course of Papillary Thyroid Cancer in Patients with Germline Mutations.

The aim of this study was to determine whether the expression of CHK2 and p53 in tumor tissue in carriers of germline mutations can serve as a prognostic marker for PTC, and whether and copy numbers correlates with the course of PTC disease. This study included 156 PTC patients previously tested for the presence of . Clinicopathological features, treatment response, disease outcome, and germline mutation status of the gene were assessed with respect to CHK2 and p53 expression, and and gene copy statuses.

Physical compatibility of colistin with analgesics during simulated Y-site administration.

Purpose: Special consideration is needed when intravenous drugs are administered simultaneously using a Y-site connector. This study aimed to investigate the physical compatibility of colistin with 6 analgesics at concentrations commonly used in clinical practice.

Methods: A pharmaceutical preparation of colistin was dissolved according to the manufacturer's instructions and diluted to a concentration of 1.

Prolonged Remission Induced by FENofibrate in children with newly diagnosed type 1 diabetes (PRIFEN): protocol of a randomised controlled trial.

Introduction: Sphingolipids regulate proinsulin folding, insulin secretion and control beta cells apoptosis. Recent evidence has demonstrated that, among other factors, reduced amounts of sulfatide may be relevant in the development of type 1 diabetes (T1D). Thus, fenofibrate, which activates sulfatide biosynthesis, may prolong remission in subjects with T1D.

Immunological Processes in the Orbit and Indications for Current and Potential Drug Targets.

Thyroid eye disease (TED) is an extrathyroidal manifestation of Graves' disease (GD). Similar to GD, TED is caused by an autoimmune response. TED is an autoimmune inflammatory disorder of the orbit and periorbital tissues, characterized by upper eyelid retraction, swelling, redness, conjunctivitis, and bulging eyes.

Determination of L-selectin in blood plasma using DNA aptamer-based surface-enhanced Raman spectroscopy assay.

In the human body, tumor cell occurrence can be indirectly monitored using the L-selectin concentration in the blood, since selectin ligands are present on the surface of tumor cells, and with tumor progression, a decrease in L-selectin levels can be expected and observed. In this study, we present a selective DNA-based surface-enhanced Raman spectroscopy (SERS) assay for the detection and determination of L-selectin in biological samples. Two calibration curves (linear in the 40-190 ng mL region and exponential in the 40-500 ng mL region) are fitted to the obtained SERS experimental data, i.

The position statement of the Working Group on the treatment of post-traumatic stress disorders in adults.

Post-traumatic stress disorder (PTSD) is a mental distress that occurs after participation in traumatic event such as the experience of natural disaster, car accident, terrorist attack or armed conflict, being a victim of sexual assault, tortured, physically abused, traumatized or being in any other life-threatening situation. The trauma victim does not always have to be in the position of the o directly threatened with physical harm. The disorder may be developed also as a result of an acute reaction to stress caused by participation in situation in which another person suffer so unimaginable that the further normal life of witness becomes impossible.

The position statement of the Working Group on the diagnosis of the post-traumatic stress disorders in adults.

Experiencing a situation of extreme danger can lead to serious stress disorders (such as PTSD) that can affect both the victims and the professional helpers. Military operations in Ukraine in the first half of 2022 started an ongoing migration crisis, resulting in the displacement of approximately 3.5 million people to Poland.

SAM, SAH and C. elegans longevity: insights from a partial AHCY deficiency model.

Supplementation with S-adenosylhomocysteine (SAH) extends the lifespan of model organisms. To explore the impact of SAH on aging, we generated a Caenorhabditis elegans model by introducing the S-adenosylhomocysteine hydrolase (AHCY-1) variant Y145C, corresponding to the human AHCY Y143C pathogenic mutation. This mutation is anticipated to impair SAH hydrolysis, resulting in its increased levels.

The Frequency of Differentiated Thyroid Cancer Recurrence in 2302 Patients With Excellent Response to Primary Therapy.

Context: Discrepant data on the recurrence rate of differentiated thyroid cancer (DTC) are reported.

Objective: To evaluate the frequency and risk factors of true recurrence in DTC patients with excellent responses (ExR) to initial therapy.

Methods: A retrospective analysis of the 2302 consecutive DTC patients with ExR to primary therapy, treated during 24 years at single center.

Crystal Lattice Defects in Deuterated Zr in Presence of O and C Impurities Studied by PAS and XRD for Electron Screening Effect.

Low-energy nuclear reactions are known to be extremely dependent on the local crystal structure and crystal defects of the deuterated samples. This has a strong influence on both hydrogen diffusion and the effective electron mass. The latter determines the strength of the local electron-screening effect and can change the deuteron-deuteron reaction rates at very low energies by many orders of magnitude.