Результаты поиска

Overview of nutritional approach in hematopoietic stem cell transplantation: COVID-19 update.

The coronavirus disease 2019 (COVID-19) is caused by the newly discovered SARS-CoV-2. Hematopoietic stem cell transplantation (HSCT) is a high-risk procedure. The novelty of COVID-19 has created more uncertainty during all phases of HSCT. It is thought that HSCT patients taking immunosuppressive agents are more likely to contract COVID-19 than healthy individuals are. Appropriate care precautions should be taken with patients undergoing HSCT to minimize the risk of COVID-19, and appropriate treatment methods must be followed in patients infected with COVID-19. Malnutrition has become a signifi

Совпадение в полном тексте источника
… Hypochlorite solutions containing 200 ppm of active chlorine can be used to sterilize fruits and vegetables. After the food is washed, it can be rinsed with purified water[ 43 ]. …

Nanoparticles for Effective Combination Therapy of Cancer.

Cancer continues to remains a major healthcare problem across the world despite strong translational research efforts towards tackling the disease. Surgery, when possible, along with radiation and chemotherapy continue to remain the mainstay of cancer treatment. Novel targeted therapies or biologics and immunotherapies have recently been approved to improve treatment efficacies while reducing collateral damage to normal, non-cancerous tissues. Combination therapies have shown better results than individual monotherapies in the clinic but often the improvements in therapeutic indices remain mar

Proteasome inhibitors - molecular basis and current perspectives in multiple myeloma.

Inhibition of proteasome, a proteolytic complex responsible for the degradation of ubiquitinated proteins, has emerged as a powerful strategy for treatment of multiple myeloma (MM), a plasma cell malignancy. First-in-class agent, bortezomib, has demonstrated great positive therapeutic efficacy in MM, both in pre-clinical and in clinical studies. However, despite its high efficiency, a large proportion of patients do not achieve sufficient clinical response. Therefore, the development of a second-generation of proteasome inhibitors (PIs) with improved pharmacological properties was needed. Rece

Совпадение в полном тексте источника
… This group binds to the S2 binding pocket of the active site, and as chlorine behaves as a leaving group, it is eliminated to render a stable cyclic ether end product following acylation of the catalytic enzyme active site Thr1O γ by the β-lactone of the inhibitor [ 42 ]. …

Gambogic Acid as a Candidate for Cancer Therapy: A Review.

Gambogic acid (GA), a kind of dry resin secreted by the Garcinia hanburyi tree, is a natural active ingredient with various biological activities, such as anti-cancer, anti-inflammatory, antioxidant, anti-bacterial effects, etc. An increasing amount of evidence indicates that GA has obvious anti-cancer effects via various molecular mechanisms, including the induction of apoptosis, autophagy, cell cycle arrest and the inhibition of invasion, metastasis, angiogenesis. In order to improve the efficacy in cancer treatment, nanometer drug delivery systems have been employed to load GA and form mice

A Review of 3D-Printed Medical Devices for Cancer Radiation Therapy.

This review explores the transformative role of three-dimensional (3D) printing in radiation therapy for cancer treatment, emphasizing its potential to deliver patient-specific, cost-effective, and sustainable medical devices. The integration of 3D printing enables rapid fabrication of customized boluses, compensators, immobilization devices, and GRID collimators tailored to individual anatomical and clinical requirements. Comparative analysis reveals that additive manufacturing surpasses conventional machining in design flexibility, lead time reduction, and material efficiency, while offering

Совпадение в полном тексте источника
… Surface disinfection methods and sterilization protocols used in clinical settings that include ethanol treatment, chlorine soaking, gas plasma sterilization, autoclaving, and dry heat sterilization, evaluated for ABS, PETG, PLA, polyamide, white resin, and dental resin materials, respectively. …

FDA-Approved Drugs Containing Amide Functionality in the Last Five Years (2021-2025): Pharmaceutical Use, Trends and Synthetic Approaches.

The amide functional group remains a cornerstone of medicinal chemistry, serving as an indispensable scaffold in the design of modern therapeutics. This review presents an analysis of FDA-approved drugs (small molecules and peptides with MW ®), amides form the structural backbone of peptidomimetics, enabling high-affinity binding to a viral protease. In precision oncology, as seen with adagrasib (Krazati®), the amide acts as a critical, metabolically stable linker that positions a covalent warhead for selective inhibition of a mutant kinase. This analysis underscores that amide's unique combin

Совпадение в полном тексте источника
… The reaction cross-couples the primary cyclopropanecarboxamide reagent with the electrophilic C-6 carbon of the pyridazine core ( INT33 ), displacing the chlorine atom. … It has one fluorine and one chlorine on the same aromatic ring. The conversion proceeds via a highly regioselective nucleophilic acyl substitution reaction. …

The Effect of Myc Inhibition Combined with the Synergistic Effect of Photothermal, Photodynamic and Radiotherapy in Tumor Treatment.

Photothermal therapy, photodynamic therapy, and radiotherapy offer the potential for precise tumor ablation with minimal adverse reactions. Myc is an oncogene that plays a critical role in cell growth and tumor development by regulating processes such as cell proliferation, differentiation, apoptosis, and metabolism. It is widely expressed in human cancers and is recognized as one of the potential targets for cancer therapy. Recent studies on the mechanism of Myc suggest that inhibiting its expression can delay cancer onset and progression. With the development of medical technology, photother

Совпадение в полном тексте источника
… On the other hand, it can inflict damage on the tumor vasculature. 74 Wu et al constructed a novel nanoplatform combining innate immune activator Astragaloside III (As) and the PDT reagent chlorine e6 (Ce6) (As + Ce6) @MSNs-PEG. …

NTP technical report on the toxicity and metabolism studies of chloral hydrate (CAS No. 302-17-0). Administered by gavage to F344/N rats and B6C3F1 mice.

Chloral hydrate is widely used as a sedative and a hypnotic in pediatric medicine. It is also a byproduct of water chlorination. Chloral hydrate has been shown to be genotoxic in numerous prokaryotic and eukaryotic assay systems including human lymphocytes in vitro. One of its metabolites, trichloroacetic acid, has demonstrated hepatocarcinogenic activity in mice. Trichloroethylene and perchloroethylene, both of which are metabolized to chloral hydrate, have been shown to be carcinogenic in rats and/or mice. Because of this evidence of carcinogenicity and because of the wide-spread use of chlo

Molecular Targeting and Rational Chemotherapy in Acute Myeloid Leukemia.

Acute myeloid leukemia (AML) is a molecularly complex disease with multiple aberrant genetic pathways involved in its pathogenesis. Approximately one-third to one-half of patients with AML would relapse, and no standard therapy is established for relapsing and/or refractory AML (RR-AML) yet. It is unlikely that blockage of only one specific pathway will lead to prolonged remissions and cures in all fractions of the AML patients population. Nowadays, novel therapeutic agents with rational combination are being recognized which improve the cure rate for relapsed AML. These drugs and their metabo

Совпадение в полном тексте источника
… To increase the stability of adenosine analogs, the 2-hydrogen atom is replaced with a halogen atom (eg, fluorine or chlorine) which results in a molecule resistant to inactivation by adenosine deaminase. …

The progress and perspective of nanomedicine in modulating the tumor immune microenvironment.

The widespread application of nanomedicine in oncology is reshaping cancer treatment paradigms. Using the precise targeting mechanisms and the rapid advancements in nanoscale materials, nanomedicine is driving progress in cancer therapy, particularly within the complex landscape of the tumor immune microenvironment (TIM). This review provides a comprehensive overview of recent studies elucidating the critical role of nanomedicine in modulating the TIM, augmenting the efficacy of immunotherapies, and overcoming therapeutic resistance. Emphasis is placed on the significance of targeted drug deli

Molecular and physical technologies for monitoring fluid and electrolyte imbalance: A focus on cancer population.

Several clinical examinations have shown the essential impact of monitoring (de)hydration (fluid and electrolyte imbalance) in cancer patients. There are multiple risk factors associated with (de)hydration, including aging, excessive or lack of fluid consumption in sports, alcohol consumption, hot weather, diabetes insipidus, vomiting, diarrhea, cancer, radiation, chemotherapy, and use of diuretics. Fluid and electrolyte imbalance mainly involves alterations in the levels of sodium, potassium, calcium, and magnesium in extracellular fluids. Hyponatremia is a common condition among individuals

Совпадение в полном тексте источника
… Initially, total body water and six elements (carbon, nitrogen, Ca 2+ , K + , Na + , and chlorine) were analyzed. 90 Recently, Liu et al. developed a transportable neutron activation analysis system to quantify elements in vivo with acceptable radiation exposure. 91 Still, this technology requires proper …

Endodontics in Systemically Compromised Patients

Аннотация не предоставлена источником. Откройте карточку для перехода к публикации.

Совпадение в полном тексте источника
… In case there is an accidental exposure: Carefully wash the wound without rubbing, as this may inoculate the virus into deeper tissues, for several minutes with soap and water or using a disinfectant of established efficacy against the virus (iodine solutions or chlorine formulations). …

Breaking the Resistance: Photodynamic Therapy in Cancer Stem Cell-Driven Tumorigenesis.

Cancer stem cells (CSCs) are essential for the growth of malignancies because they encourage resistance to cancer therapy and make metastasis and relapse easier. To effectively tackle the obstacles presented by CSCs, novel therapeutic approaches are required. Photodynamic therapy (PDT) is a promising treatment option for cancer cells, which uses light-sensitive medications that are activated by light wavelengths. This review investigates the use of PDT to overcome malignancies driven by CSCs that have innate resistance mechanisms. PDT works by causing tumor cells to accumulate photosensitizers

Совпадение в полном тексте источника
… CD44 targeting mediated by polymeric nanoparticles and combination of chlorine TPCS 2a -PDT and docetaxel-chemotherapy for efficient killing of breast differentiated and stem cancer cells in vitro Cancers 2020 12 278 10.3390/cancers12020278 31979218 PMC7072409 120. Raschpichler M. Preis E. …

The Trinity: Interplay among Cancer Cells, Fibroblasts, and Immune Cells in Pancreatic Cancer and Implication of CD8+ T Cell-Orientated Therapy.

The microenvironment in tumors is complicated and is constituted by different cell types and stromal proteins. Among the cell types, the abundance of cancer cells, fibroblasts, and immune cells is high and these cells work as the "Trinity" in promoting tumorigenesis. Although unidirectional or bidirectional crosstalk between two independent cell types has been well characterized, the multi-directional interplays between cancer cells, fibroblasts, and immune cells in vitro and in vivo are still unclear. We summarize recent studies in addressing the interaction of the "Trinity" members in the tu

Targeting Reactive Oxygen Species Capacity of Tumor Cells with Repurposed Drug as an Anticancer Therapy.

Accumulating evidence shows that elevated levels of reactive oxygen species (ROS) are associated with cancer initiation, growth, and response to therapies. As concentrations increase, ROS influence cancer development in a paradoxical way, either triggering tumorigenesis and supporting the proliferation of cancer cells at moderate levels of ROS or causing cancer cell death at high levels of ROS. Thus, ROS can be considered an attractive target for therapy of cancer and two apparently contradictory but virtually complementary therapeutic strategies for the regulation of ROS to treat cancer. Desp

Mastocytosis-derived extracellular vesicles deliver miR-23a and miR-30a into pre-osteoblasts and prevent osteoblastogenesis and bone formation.

Osteoporosis and other manifestations of bone disease are frequent in patients with systemic mastocytosis (SM) in association with the presence of mast cell infiltrates in bone marrow, although the mechanisms behind bone disease remain poorly understood. We find that extracellular vesicles (EVs) released by neoplastic mast cells and present in the serum of patients with SM (SM-EVs) block osteoblast differentiation and mineralization in culture, and when injected into mice diminish the expression of osteoblast markers, and trabecular bone volume and microarchitecture. We demonstrate that miRNA-

Освещение нанотерапевтики с точными глазами: от оптического к радионаностантике.

Рак по-прежнему относится к числу самых смертоносных заболеваний во всем мире, унося много жизней из-за высоких показателей смертности. Химиотерапия, являющаяся одной из основных форм лечения рака, приносит значительные выгоды, однако ей мешают недостатки, которые ставят под угрозу качество жизни пациентов. Таким образом, разработка альтернатив минимально инвазивному лечению по-прежнему представляет собой серьезную проблему. Среди них наноматериалы, легкая фототерапия, включая фотодинамическую терапию, фототермальную терапию и радиотерапию, являются перспективными вариантами, обеспечивающими т

Personal exposure to mixtures of volatile organic compounds: modeling and further analysis of the RIOPA data.

INTRODUCTION: Emission sources of volatile organic compounds (VOCs*) are numerous and widespread in both indoor and outdoor environments. Concentrations of VOCs indoors typically exceed outdoor levels, and most people spend nearly 90% of their time indoors. Thus, indoor sources generally contribute the majority of VOC exposures for most people. VOC exposure has been associated with a wide range of acute and chronic health effects; for example, asthma, respiratory diseases, liver and kidney dysfunction, neurologic impairment, and cancer. Although exposures to most VOCs for most persons fall bel

Diseases of the Nervous System

Аннотация не предоставлена источником. Откройте карточку для перехода к публикации.

Экологические и профессиональные факторы риска, связанные с множественной миеломой: многоцентральное, больничное и параллельное исследование конкретных случаев.

ВВЕДЕНИЕ: Множественная миелома (ММ), гематологическая порча, вызванная распространением неопластических плазменных клеток, по-прежнему недостаточно характеризуется факторами профессионального и экологического риска и их воздействием на качество жизни пациентов (QoL). В этом исследовании изучается изменяемое воздействие на Западном берегу, Палестина, и оценивается их связь с рисками, связанными с ММ, и результатами по конкретным заболеваниям. МЕТОДЫ: В период между 2018 и 2025, включая 227 Пациенты ММ и 176 Совпадающие с контрольными. Спички основывались на возрасте, поле, госпитализации и тип