keyword
https://read.qxmd.com/read/38675470/vesicular-drug-delivery-systems-promising-approaches-in-ocular-drug-delivery
#21
REVIEW
Eslim Batur, Samet Özdemir, Meltem Ezgi Durgun, Yıldız Özsoy
Ocular drug delivery poses unique challenges due to the complex anatomical and physiological barriers of the eye. Conventional dosage forms often fail to achieve optimal therapeutic outcomes due to poor bioavailability, short retention time, and off-target effects. In recent years, vesicular drug delivery systems have emerged as promising solutions to address these challenges. Vesicular systems, such as liposome, niosome, ethosome, transfersome, and others (bilosome, transethosome, cubosome, proniosome, chitosome, terpesome, phytosome, discome, and spanlastics), offer several advantages for ocular drug delivery...
April 16, 2024: Pharmaceuticals
https://read.qxmd.com/read/38675468/approaches-to-reducing-normal-tissue-radiation-from-radiolabeled-antibodies
#22
REVIEW
Hiroyuki Suzuki, Kento Kannaka, Tomoya Uehara
Radiolabeled antibodies are powerful tools for both imaging and therapy in the field of nuclear medicine. Radiolabeling methods that do not release radionuclides from parent antibodies are essential for radiolabeling antibodies, and practical radiolabeling protocols that provide high in vivo stability have been established for many radionuclides, with a few exceptions. However, several limitations remain, including undesirable side effects on the biodistribution profiles of antibodies. This review summarizes the numerous efforts made to tackle this problem and the recent advances, mainly in preclinical studies...
April 16, 2024: Pharmaceuticals
https://read.qxmd.com/read/38675446/a-non-toxic-binuclear-vanadium-iv-complex-as-insulin-adjuvant-improves-the-glycemic-control-in-streptozotocin-induced-diabetic-rats
#23
JOURNAL ARTICLE
Mateus S Lopes, Gabriel B Baptistella, Giovana G Nunes, Matheus V Ferreira, Joice Maria Cunha, Kauê Marcel de Oliveira, Alexandra Acco, Maria Luiza C Lopes, Alexessander Couto Alves, Glaucio Valdameri, Vivian R Moure, Geraldo Picheth, Graciele C M Manica, Fabiane G M Rego
Diabetes mellitus (DM) complications are a burden to health care systems due to the associated consequences of poor glycemic control and the side effects of insulin therapy. Recently. adjuvant therapies, such as vanadium compounds, have gained attention due to their potential to improve glucose homeostasis in patients with diabetes. In order to determine the anti-diabetic and antioxidant effects of the oxidovanadium(IV) complex (Et3 NH)2 [{VO(OH}2 )(ox)2 (µ-ox)] or Vox2), rats with streptozotocin (STZ)-induced diabetes were treated with 30 and 100 mg/kg of Vox2, orally administered for 12 days...
April 11, 2024: Pharmaceuticals
https://read.qxmd.com/read/38675438/view-on-metformin-antidiabetic-and-pleiotropic-effects-pharmacokinetics-side-effects-and-sex-related-differences
#24
REVIEW
Guglielmina Froldi
Metformin is a synthetic biguanide used as an antidiabetic drug in type 2 diabetes mellitus, achieved by studying the bioactive metabolites of Galega officinalis L. It is also used off-label for various other diseases, such as subclinical diabetes, obesity, polycystic ovary syndrome, etc. In addition, metformin is proposed as an add-on therapy for several conditions, including autoimmune diseases, neurodegenerative diseases, and cancer. Although metformin has been used for many decades, it is still the subject of many pharmacodynamic and pharmacokinetic studies in light of its extensive use...
April 8, 2024: Pharmaceuticals
https://read.qxmd.com/read/38675433/pharmacokinetics-pharmacodynamics-and-side-effects-of-midazolam-a-review-and-case-example
#25
REVIEW
Jens-Uwe Peter, Peter Dieudonné, Oliver Zolk
Midazolam, a short-acting benzodiazepine, is widely used to alleviate patient anxiety, enhance compliance, and aid in anesthesia. While its side effects are typically dose-dependent and manageable with vigilant perioperative monitoring, serious cardiorespiratory complications, including fatalities and permanent neurological impairment, have been documented. Prolonged exposure to benzodiazepines, such as midazolam, has been associated with neurological changes in infants. Despite attempts to employ therapeutic drug monitoring for optimal sedation dosing, its efficacy has been limited...
April 8, 2024: Pharmaceuticals
https://read.qxmd.com/read/38675395/silibinin-s-effects-against-methotrexate-induced-hepatotoxicity-in-adjuvant-induced-arthritis-rat-model
#26
JOURNAL ARTICLE
Ghada Khawaja, Youmna El-Orfali
Methotrexate (MTX) is the first drug of choice to treat several diseases, including rheumatoid arthritis. However, its administration is accompanied by severe side effects, most commonly hepatotoxicity. Hence, alternative therapies with a lower toxicity and fewer side effects are needed. This study aimed to investigate the antioxidant and hepatoprotective effects of silibinin (SIL, natural agent) against MTX-induced hepatotoxicity in an adjuvant-induced arthritis (AIA) rat model. Arthritic rats were treated with SIL (100 mg/kg) and/or methotrexate (2 mg/kg)...
March 28, 2024: Pharmaceuticals
https://read.qxmd.com/read/38675329/a-novel-position-sensitive-linear-winding-silicon-drift-detector
#27
JOURNAL ARTICLE
Tao Long, Jun Zhao, Bo Xiong, Xinqing Li, Minghua Tang, Zheng Li
A novel position-sensitive linear winding silicon drift detector (LWSDD) was designed and simulated. On the frontside (anode side), the collecting anodes were set on both sides of the detector, and an S-shaped linear winding cathode strip was arranged in the middle, which can realize independent voltage division and reduce the complexity of external bias resistor chain compared with the traditional linear silicon drift detector. The detectors were arranged in a butterfly shape, which increased the effective area of the detectors and improved the collection efficiency...
April 12, 2024: Micromachines
https://read.qxmd.com/read/38675310/atomic-force-microscopy-study-of-the-long-term-effect-of-the-glycerol-flow-stopped-in-a-coiled-heat-exchanger-on-horseradish-peroxidase
#28
JOURNAL ARTICLE
Yuri D Ivanov, Ivan D Shumov, Andrey F Kozlov, Anastasia A Valueva, Maria O Ershova, Irina A Ivanova, Alexander N Ableev, Vadim Y Tatur, Andrei A Lukyanitsa, Nina D Ivanova, Vadim S Ziborov
Glycerol is employed as a functional component of heat-transfer fluids, which are of use in both bioreactors and various biosensor devices. At the same time, flowing glycerol was reported to cause considerable triboelectric effects. Herein, by using atomic force microscopy (AFM), we have revealed the long-term effect of glycerol flow, stopped in a ground-shielded coiled heat exchanger, on horseradish peroxidase (HRP) adsorption on mica. Namely, the solution of HRP was incubated in the vicinity of the side of the cylindrical coil with stopped glycerol flow, and then HRP was adsorbed from this solution onto a mica substrate...
April 4, 2024: Micromachines
https://read.qxmd.com/read/38675292/effect-of-quasi-one-dimensional-properties-on-source-drain-contacts-in-vertical-nanowire-field-effect-transistors-vnwfets
#29
JOURNAL ARTICLE
Iksoo Park, Jaeyong Choi, Jungsik Kim, Byoung Don Kong, Jeong-Soo Lee
In this study, we investigated the influence of quasi-one-dimensional (Quasi-1D) characteristics on the source and drain contact resistances within vertical nanowire (NW) field-effect transistors (FETs) of diminutive diameter. The top contact of the NW is segregated into two distinct regions: the first encompassing the upper surface, designated as the axial contact, and the second encircling the side surface, known as the radial contact, which is formed during the top-contact metal deposition process. Quantum confinement effects, prominent within Quasi-1D NWs, exert significant constraints on radial transport, consequently inducing a noticeable impact on contact resistance...
March 30, 2024: Micromachines
https://read.qxmd.com/read/38675201/comprehensive-therapeutic-approaches-to-tuberculous-meningitis-pharmacokinetics-combined-dosing-and-advanced-intrathecal-therapies
#30
REVIEW
Ahmad Khalid Madadi, Moon-Jun Sohn
Tuberculous meningitis (TBM) presents a critical neurologic emergency characterized by high mortality and morbidity rates, necessitating immediate therapeutic intervention, often ahead of definitive microbiological and molecular diagnoses. The primary hurdle in effective TBM treatment is the blood-brain barrier (BBB), which significantly restricts the delivery of anti-tuberculous medications to the central nervous system (CNS), leading to subtherapeutic drug levels and poor treatment outcomes. The standard regimen for initial TBM treatment frequently falls short, followed by adverse side effects, vasculitis, and hydrocephalus, driving the condition toward a refractory state...
April 14, 2024: Pharmaceutics
https://read.qxmd.com/read/38675165/exploring-microemulsion-systems-for-the-incorporation-of-glucocorticoids-into-bacterial-cellulose-a-novel-approach-for-anti-inflammatory-wound-dressings
#31
JOURNAL ARTICLE
Paul Zahel, Vera Bruggink, Juliana Hülsmann, Frank Steiniger, Robert K Hofstetter, Thorsten Heinzel, Uwe Beekmann, Oliver Werz, Dana Kralisch
The effective pharmacological treatment of inflamed wounds such as pyoderma gangraenosum remains challenging, as the systemic application of suitable drugs such as glucocorticoids is compromised by severe side effects and the inherent difficulties of wounds as drug targets. Furthermore, conventional semi-solid formulations are not suitable for direct application to open wounds. Thus, the treatment of inflamed wounds could considerably benefit from the development of active wound dressings for the topical administration of anti-inflammatory drugs...
April 7, 2024: Pharmaceutics
https://read.qxmd.com/read/38675155/preparation-and-optimization-of-mir-375-nano-vector-using-two-novel-chitosan-coated-nano-structured-lipid-carriers-as-gene-therapy-for-hepatocellular-carcinoma
#32
JOURNAL ARTICLE
Bangly Soliman, Ming Ming Wen, Eman Kandil, Basma El-Agamy, Amira M Gamal-Eldeen, Mahmoud ElHefnawi
Currently, there is still a lack of effective carriers with minimal side effects to deliver therapeutic miRNA. Thus, it is crucial to optimize novel drug delivery systems. MiR-375 has proven superior therapeutic potency in Hepatocellular carcinoma (HCC). The purpose of this study was to fabricate 2 novel and smart nano-carriers for the transportation efficiency of miR-375 in HCC cells and enhance its anti-tumor effects. We established the miR-375 construct through the pEGP- miR expression vector. Two nano-carriers of solid/liquid lipids and chitosan (CS) were strategically selected, prepared by high-speed homogenization, and optimized by varying nano-formulation factors...
April 3, 2024: Pharmaceutics
https://read.qxmd.com/read/38675124/polymersomes-as-innovative-stimuli-responsive-platforms-for-cancer-therapy
#33
REVIEW
Irina Negut, Bogdan Bita
This review addresses the urgent need for more targeted and less toxic cancer treatments by exploring the potential of multi-responsive polymersomes. These advanced nanocarriers are engineered to deliver drugs precisely to tumor sites by responding to specific stimuli such as pH, temperature, light, hypoxia, and redox conditions, thereby minimizing the side effects associated with traditional chemotherapy. We discuss the design, synthesis, and recent applications of polymersomes, emphasizing their ability to improve therapeutic outcomes through controlled drug release and targeted delivery...
March 26, 2024: Pharmaceutics
https://read.qxmd.com/read/38675098/novel-dry-hyaluronic-acid-vancomycin-complex-powder-for-inhalation-useful-in-pulmonary-infections-associated-with-cystic-fibrosis
#34
JOURNAL ARTICLE
María S Magi, Yanina de Lafuente, Eride Quarta, María C Palena, Perla Del R Ardiles, Paulina L Páez, Fabio Sonvico, Francesca Buttini, Alvaro F Jimenez-Kairuz
Polyelectrolyte-drug complexes are interesting alternatives to improve unfavorable drug properties. Vancomycin (VAN) is an antimicrobial used in the treatment of methicillin-resistant Staphylococcus aureus pulmonary infections in patients with cystic fibrosis. It is generally administered intravenously with a high incidence of adverse side effects, which could be reduced by intrapulmonary administration. Currently, there are no commercially available inhalable formulations containing VAN. Thus, the present work focuses on the preparation and characterization of an ionic complex between hyaluronic acid (HA) and VAN with potential use in inhalable formulations...
March 22, 2024: Pharmaceutics
https://read.qxmd.com/read/38675024/surface-modification-of-mesoporous-silica-nanoparticles-for-application-in-targeted-delivery-systems-of-antitumour-drugs
#35
REVIEW
Svetlana Kovtareva, Lyazat Kusepova, Gaukhar Tazhkenova, Togzhan Mashan, Karlygash Bazarbaeva, Eldar Kopishev
The problem of tumour therapy has attracted the attention of many researchers for many decades. One of the promising strategies for the development of new dosage forms to improve oncology treatment efficacy and minimise side effects is the development of nanoparticle-based targeted transport systems for anticancer drugs. Among inorganic nanoparticles, mesoporous silica deserves special attention due to its outstanding surface properties and drug-loading capability. This review analyses the various factors affecting the cytotoxicity, cellular uptake, and biocompatibility of mesoporous silica nanoparticles (MSNs), constituting a key aspect in the development of safe and effective drug delivery systems...
April 16, 2024: Polymers
https://read.qxmd.com/read/38675017/novel-photothermal-graphene-based-hydrogels-in-biomedical-applications
#36
REVIEW
Alexa-Maria Croitoru, Denisa Ficai, Anton Ficai
In the last decade, photothermal therapy (PTT) has attracted tremendous attention because it is non-invasive, shows high efficiency and antibacterial activity, and minimizes drug side effects. Previous studies demonstrated that PTT can effectively inhibit the growth of bacteria and promotes cell proliferation, accelerating wound healing and tissue regeneration. Among different NIR-responsive biomaterials, graphene-based hydrogels with photothermal properties are considered as the best candidates for biomedical applications, due to their excellent properties...
April 15, 2024: Polymers
https://read.qxmd.com/read/38674937/osteogenic-effects-of-the-diospyros-lotus-l-leaf-extract-on-mc3t3-e1-pre-osteoblasts-and-ovariectomized-mice-via-bmp2-4-and-tgf-%C3%AE-pathways
#37
JOURNAL ARTICLE
Soyeon Hong, Nadzeya Lazerka, Byeong Jun Jeon, Jeong Do Kim, Saruul Erdenebileg, Chu Won Nho, Gyhye Yoo
Osteoporosis, a disease defined by the primary bone strength due to a low bone mineral density, is a bone disorder associated with increased mortality in the older adult population. Osteoporosis is mainly treated via hormone replacement therapy, bisphosphates, and anti-bone resorption agents. However, these agents exert severe side effects, necessitating the development of novel therapeutic agents. Many studies are focusing on osteogenic agents as they increase the bone density, which is essential for osteoporosis treatment...
April 22, 2024: Nutrients
https://read.qxmd.com/read/38674792/a-cross-sectional-study-of-sports-food-consumption-patterns-experiences-and-perceptions-amongst-non-athletes-in-australia
#38
JOURNAL ARTICLE
Celeste I Chapple, Alissa J Burnett, Julie L Woods, Catherine G Russell
Sports foods are designed for athletes, yet their availability, type, and sales have increased over the past decade, likely driven by non-athlete use. This could lead to detrimental health outcomes via over/misuse or unwanted side effects. The aim of this study was to describe sports food consumption patterns and associated drivers, consumption reasons, perception of risks, and side effects experienced amongst non-athletes in Australia. In 2022, n = 307 non-athlete Australian adults (18-65 years) completed an online cross-sectional survey including closed-ended (consumption patterns, factors, and exercise participation) and open-ended questions (reasons for consumption, risk perception, and side effects experienced)...
April 9, 2024: Nutrients
https://read.qxmd.com/read/38674678/enhancing-the-startup-rate-of-microbial-methanogenic-systems-through-the-synergy-of-%C3%AE-lactam-antibiotics-and-electrolytic-cells
#39
JOURNAL ARTICLE
Yuting Zhe, Huaigang Cheng, Fangqin Cheng, Huiping Song, Zihe Pan
The slow startup and suboptimal efficiency of microbial carbon sequestration and methane-production systems have not been fully resolved despite their contribution to sustainable energy production and the reduction of greenhouse gas emissions. These systems often grapple with persistent hurdles, including interference from miscellaneous bacteria and the slow enrichment of methanogens. To address these issues, this paper examines the synergistic effect of coupling β-lactam antibiotics with an electrolytic cell on the methanogenic process...
April 3, 2024: Microorganisms
https://read.qxmd.com/read/38674471/carotenoid-accumulation-in-the-rhododendron-chrysanthum-is-mediated-by-abscisic-acid-production-driven-by-uv-b-stress
#40
JOURNAL ARTICLE
Fushuai Gong, Xiangru Zhou, Wang Yu, Hongwei Xu, Xiaofu Zhou
Rhododendron chrysanthum ( R. chrysanthum ) development is hampered by UV-B sunlight because it damages the photosynthetic system and encourages the buildup of carotenoids. Nevertheless, it is still unclear how R. chrysanthum repairs the photosynthetic system to encourage the formation of carotenoid pigments. The carotenoid and abscisic acid (ABA) concentrations of the R. chrysanthum were ascertained in this investigation. Following UV-B stress, the level of carotenoids was markedly increased, and there was a strong correlation between carotenoids and ABA...
April 9, 2024: Plants (Basel, Switzerland)
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