Результаты поиска

Biocompatibility in hemodialysis: artificial membrane and human blood interactions.

Hemodialysis, a cornerstone therapy for chronic kidney disease, represented a crucial advance in the evolution of artificial organs. While its success is largely due to its efficiency in removing uremic toxins, an equally important challenge is to uphold the primum non nocere principle by minimizing the harmful effects of membrane-blood interactions. This review examines the complex mechanisms and key interactions underlying membrane biocompatibility, including complement activation, inflammation, and coagulation disturbances, paving the way for their clinical implications. We also summarize r

Совпадение в полном тексте источника
… Polyurethanes (PU) designed to mimic heparin were synthesized in a mixed solution of dimethyl sulfoxide (DMSO) and water, reducing the use of organic solvents. … Additionally, reuse also reduces the risks of first-use syndrome, which is due to a type A IgE-mediated allergic reaction associated with sensitization to ethylene oxide, a sterilizing agent used in the manufacture of current dialyzers that deposits in the polyurethane filler used to secure the hollow …

Dressings and topical agents for the management of open wounds after surgical treatment for sacrococcygeal pilonidal sinus.

BACKGROUND: Sacrococcygeal pilonidal sinus disease is a common debilitating condition that predominantly affects young adults, with a profound impact on their activities of daily living. The condition is treated surgically, and in some cases the wound in the natal cleft is left open to heal by itself. Many dressings and topical agents are available to aid healing of these wounds. OBJECTIVES: To assess the effects of dressings and topical agents for the management of open wounds following surgical treatment for sacrococcygeal pilonidal sinus in any care setting. SEARCH METHODS: In March 2021,

Efficacy and Safety of a DOAC Compared to Unfractionated Heparin and A Low Molecular Weight Heparin in the Prevention of Thromboembolism in Hematopoietic Stem Cell Transplant Recipients.

BACKGROUND: Hematopoietic stem cell transplantation (HSCT) patients are at risk of thromboembolic events, making thromboprophylaxis crucial. OBJECTIVES: This study aimed to compare apixaban, a direct factor Xa inhibitor (DOAC), with dalteparin and unfractionated heparin for thromboprophylaxis in HSCT recipients. The safety outcome included the assessment of hemorrhagic events. METHODS: In this open-label randomized clinical trial, 182 HSCT recipients were divided into three groups: Apixaban (n = 61, 2.5 mg two times a day), dalteparin (n = 59, 5000 IU daily), and unfractionated heparin (n =

The various therapeutic applications of the medical isotope holmium-166: a narrative review.

Over the years, a broad spectrum of applications of the radionuclide holmium-166 as a medical isotope has been established. The isotope holmium-166 is attractive as it emits high-energy beta radiation which can be used for a therapeutic effect and gamma radiation which can be used for nuclear imaging purposes. Furthermore, holmium-165 can be visualized by MRI because of its paramagnetic properties and by CT because of its high density. Since holmium-165 has a natural abundance of 100%, the only by-product is metastable holmium-166 and no costly chemical purification steps are necessary for pro

Clinical performance of implanted devices used in surgical treatment of patients with spinal tumors: a systematic review.

PURPOSE: Implanted devices used in metastatic spine tumor surgery (MSTS) include pedicle screws, fixation plates, fixation rods, and interbody devices. A material to be used to fabricate any of these devices should possess an array of properties, which include biocompatibility, no toxicity, bioactivity, low wear rate, low to moderate incidence of artifacts during imaging, tensile strength and modulus that are comparable to those of cortical bone, high fatigue strength/long fatigue life, minimal or no negative impact on radiotherapy (RT) planning and delivery, and high capability for fusion to

Graft type for femoro-popliteal bypass surgery.

BACKGROUND: Femoro-popliteal bypass is implemented to save limbs that might otherwise require amputation, in patients with ischaemic rest pain or tissue loss; and to improve walking distance in patients with severe life-limiting claudication. Contemporary practice involves grafts using autologous vein, polytetrafluoroethylene (PTFE) or Dacron as a bypass conduit. This is the second update of a Cochrane review first published in 1999 and last updated in 2010. OBJECTIVES: To assess the effects of bypass graft type in the treatment of stenosis or occlusion of the femoro-popliteal arterial segmen

Patches of different types for carotid patch angioplasty.

BACKGROUND: Extracranial carotid artery stenosis is the major cause of stroke, which can lead to disability and mortality. Carotid endarterectomy (CEA) with carotid patch angioplasty is the most popular technique for reducing the risk of stroke. Patch material may be made from an autologous vein, bovine pericardium, or synthetic material including polytetrafluoroethylene (PTFE), Dacron, polyurethane, and polyester. This is an update of a review that was first published in 1996 and was last updated in 2010. OBJECTIVES: To assess the safety and efficacy of different types of patch materials use

NTP Toxicology and Carcinogenesis Studies of 3,3'-Dimethoxybenzidine Dihydrochloride (CAS No. 20325-40-0) in F344/N Rats (Drinking Water Studies).

3,3'-Dimethoxybenzidine dihydrochloride is an off-white powder with a melting point of 274 degrees C. 3,3'-Dimethoxybenzidine is used principally as an intermediate in the production of commercial bisazobiphenyl dyes for coloring textiles, paper, plastic, rubber, and leather. In the synthesis of the bisazobiphenyl dyes, the amine groups of 3,3'-dimethoxybenzidine are chemically linked with other aromatic amines. A small quantity of 3,3'-dimethoxybenzidine is also used as an intermediate in the production of o-dianisidine diisocyanate, which is used in isocyanate-based adhesive systems and as a

Hyaluronan, fluid pressure, and stromal resistance in pancreas cancer.

Pancreatic ductal adenocarcinomas (PDAs) are notoriously aggressive and resistant to treatment. They distinguish themselves further by their robust fibroinflammatory, or desmoplastic, stromal reaction and degree of hypovascularity. Recent findings have revealed multiple mechanisms of stromal complicity in disease pathogenesis and resistance. In this review, we focus on altered physicomechanics as one mechanism of what we term as 'stromal resistance' in PDA. Extremely high interstitial fluid pressures and a dense extracellular matrix combine to limit the delivery and distribution of therapeutic

Catheter-related thrombosis in cancer patients with tunnelled non-cuffed centrally inserted central catheters: a retrospective cohort study.

BACKGROUND: Peripherally inserted central catheters (PICCs) are widely used in oncology but are associated with higher rates of catheter-related thrombosis compared to other central venous access devices. Tunnelled non-cuffed centrally inserted central catheters (tnc-CICC) may offer a safer alternative in patient at high risk of thrombosis. METHODS: This retrospective cohort study evaluated 193 tnc-CICCs placed in 182 cancer patients at a tertiary oncology unit between January 2021 and December 2022. Primary outcomes is catheter-related thrombosis; secondary outcomes are procedural duration a

Is Camphor the Future in Supporting Therapy for Skin Infections?

The aim of this review is to present the potential application of camphor-a bicyclic monoterpene ketone-in the prevention of skin infections. Skin diseases represent a heterogeneous group of disorders characterized by prolonged symptoms that significantly diminish the quality of life. They affect the dermis, the epidermis, and even subcutaneous tissue. They very often have a bacterial or fungal background. Therapy for dermatological skin disorders is difficult and long-term. Therefore, it is important to find a compound, preferably of natural origin, that (i) prevents the initiation of this in

In Vivo Bone Tissue Engineering Strategies: Advances and Prospects.

Reconstruction of critical-sized bone defects remains a tremendous challenge for surgeons worldwide. Despite the variety of surgical techniques, current clinical strategies for bone defect repair demonstrate significant limitations and drawbacks, including donor-site morbidity, poor anatomical match, insufficient bone volume, bone graft resorption, and rejection. Bone tissue engineering (BTE) has emerged as a novel approach to guided bone tissue regeneration. BTE focuses on in vitro manipulations with seed cells, growth factors and bioactive scaffolds using bioreactors. The successful clinical

Slipping Through the Pores: Hypoalbuminemia and Albumin Loss During Hemodialysis.

Hypoalbuminemia results when compensatory mechanisms are unable to keep pace with derangements in catabolism/loss and/or decreased synthesis of albumin. Across many disease states, including chronic kidney disease (CKD), hypoalbuminemia is a well-established, independent risk factor for adverse outcomes, including mortality. In the setting of CKD, reduced serum albumin concentrations are often a manifestation of protein-energy wasting, a state of metabolic and nutritional alterations resulting in reduced protein and energy stores. The progression of CKD to kidney failure and the initiation of

Pressure ulcer prevention: an evidence-based analysis.

UNLABELLED: In April 2008, the Medical Advisory Secretariat began an evidence-based review of the literature concerning pressure ulcers.Please visit the Medical Advisory Secretariat Web site, http://www.health.gov.on.ca/english/providers/program/mas/tech/tech_mn.html to review these titles that are currently available within the Pressure Ulcers series.PRESSURE ULCER PREVENTION: an evidence based analysisThe cost-effectiveness of prevention strategies for pressure ulcers in long-term care homes in Ontario: projections of the Ontario Pressure Ulcer Model (field evaluation)MANAGEMENT OF CHRONIC P

Probiotics and nanoparticle-mediated nutrient delivery in the management of transfusion-supported diseases.

Bone marrow is vital for hematopoiesis, producing blood cells essential for oxygen transport, immune defense, and clotting. However, disorders like leukemia, lymphoma, aplastic anemia, and myelodysplastic syndromes can severely disrupt its function, leading to life-threatening complications. Traditional treatments, including chemotherapy and stem cell transplants, have significantly improved patient outcomes but are often associated with severe side effects and limitations, necessitating the exploration of safer, more targeted therapeutic strategies. Nanotechnology has emerged as a promising a

Pressure injury risk assessment for palliative care patients in the acute hospital setting: a scoping review.

BackgroundHospitalised palliative care patients are at risk of pressure injury. The development of pressure injuries causes physical and psychological distress for patients. Therefore, the prevention of hospital-acquired pressure injury is a nursing priority. The first step in prevention is conducting a risk assessment, which should be population-specific. In Australia, four palliative care phases guide care planning for appropriate clinical management of palliative care patients. In phases 1-3, the palliative patient cohort is based on acute care, where patients require medical treatment and/

Management of chronic pressure ulcers: an evidence-based analysis.

UNLABELLED: In April 2008, the Medical Advisory Secretariat began an evidence-based review of the literature concerning pressure ulcers.Please visit the Medical Advisory Secretariat Web site, http://www.health.gov.on.ca/english/providers/program/mas/tech/tech_mn.html to review these titles that are currently available within the Pressure Ulcers series.PRESSURE ULCER PREVENTION: an evidence based analysisThe cost-effectiveness of prevention strategies for pressure ulcers in long-term care homes in Ontario: projections of the Ontario Pressure Ulcer Model (field evaluation)MANAGEMENT OF CHRONIC P

Иммунитет в нейромодуляции: исследование нейронных и иммунных путей в расстройствах мозга.

Иммунитет четко регулирует функцию мозга. Она непосредственно участвует в патологических процессах таких нейродегенеративных заболеваний, как болезнь Паркинсона и Альцгеймера, посттравматические заболевания, множественный склероз, травма головного мозга и психические расстройства (большое расстройство организма, серьезное депрессивное расстройство (МДС), расстройства тревожности, расстройства психоза и шизофрения, а также расстройства нервного развития (НРД). Нейромодулирование в настоящее время является одной из ведущих терапевтических стратегий лечения этих расстройств, однако пока мало что

Pathologic complete response to enfortumab vedotin plus pembrolizumab in node-positive urothelial carcinoma: a case report.

BACKGROUND: Biofuels obtained from first-generation (1G) sugars-starch streams have been proven unsustainable as their constant consumption is not only significantly costly for commercial scale production systems, but it could potentially lead to problems associated with extortionate food items for human usage. In this regard, biofuels' production in alkali-thermophilic environs from second-generation (2G) bio-waste would not only be markedly feasible, but these extreme conditions might be able to sustain aseptic fermentations without spending much for sterilization. RESULTS: Present investig

Snail and Slug collaborate on EMT and tumor metastasis through miR-101-mediated EZH2 axis in oral tongue squamous cell carcinoma.

Lung diseases, including COVID-19 and lung cancers, is a huge threat to human health. However, for the treatment and diagnosis of various lung diseases, such as pneumonia, asthma, cancer, and pulmonary tuberculosis, are becoming increasingly challenging. Currently, several types of treatments and/or diagnostic methods are used to treat lung diseases; however, the occurrence of adverse reactions to chemotherapy, drug-resistant bacteria, side effects that can be significantly toxic, and poor drug delivery necessitates the development of more promising treatments. Nanotechnology, as an emerging t