scholarly journals Physiological fluid interfaces: Functional microenvironments, drug delivery targets, and first line of defense

Author(s):  
Pascal Bertsch ◽  
Jotam Bergfreund ◽  
Erich J. Windhab ◽  
Peter Fischer
Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2135
Author(s):  
Kamila Butowska ◽  
Anna Woziwodzka ◽  
Agnieszka Borowik ◽  
Jacek Piosik

Doxorubicin, a member of the anthracycline family, is a common anticancer agent often used as a first line treatment for the wide spectrum of cancers. Doxorubicin-based chemotherapy, although effective, is associated with serious side effects, such as irreversible cardiotoxicity or nephrotoxicity. Those often life-threatening adverse risks, responsible for the elongation of the patients’ recuperation period and increasing medical expenses, have prompted the need for creating novel and safer drug delivery systems. Among many proposed concepts, polymeric nanocarriers are shown to be a promising approach, allowing for controlled and selective drug delivery, simultaneously enhancing its activity towards cancerous cells and reducing toxic effects on healthy tissues. This article is a chronological examination of the history of the work progress on polymeric nanostructures, designed as efficient doxorubicin nanocarriers, with the emphasis on the main achievements of 2010–2020. Numerous publications have been reviewed to provide an essential summation of the nanopolymer types and their essential properties, mechanisms towards efficient drug delivery, as well as active targeting stimuli-responsive strategies that are currently utilized in the doxorubicin transportation field.


2009 ◽  
Vol 1 ◽  
pp. CMT.S2293
Author(s):  
Reem Sharaiha ◽  
Arun Swaminath

Ulcerative colitis affects approximately 500,000 people within the U.S. For mild to moderate disease, 5-ASA is considered the first line medication to achieve both induction of remission and maintenance of remission. Since the use of sulfasalazine over 40 years ago, numerous new formulations have been created to minimize side effects and maximize drug delivery to the affected colon. Here, we have detailed the currently available 5-ASA formulations and explain why there is room for new and improved 5-ASA formulations. In addition, we will summarize the latest trials detailing the use of MMX mesalamine and where it may fit into the treatment algorithm for our patients with mild to moderate ulcerative colitis.


Author(s):  
ALANKAR SHRIVASTAVA

The diseases involve heart and blood vessels are classified under cardiovascular diseases. Hypertension (HTN) is a disorder of the CV system characterized by elevated arterial blood pressure. Pulsatile drug delivery systems are on highlight today. This is due to their distinct advantage of releasing drug as the circadian rhythm of the disease. The beta-blockers are first-line therapy for the HTN. Hence, researches related to such modified formulations of these drugs are of need to increase the patient compliance and convenience. This review describes the various such systems published in literature. This also includes a brief description about circadian rhythm and beta-blockers. The researchers involved in the development of modified release formulations are the main target audience for this review.


2013 ◽  
Vol 68 (8) ◽  
pp. 37-44 ◽  
Author(s):  
M. A. Sanzhakov ◽  
O. M. Ipatova ◽  
T. I. Torkhovskaya ◽  
V. N. Prozorovskii ◽  
E. G. Tikhonova ◽  
...  

The increase of tuberculosis incidence in last decade stimulated elaboration of both new antituberculous drugs and also searches of optimizing delivery systems for existing drugs. It is determined by their side effects and low bioavailability of effective first line  drug rifampicin. Various nanosystems for transport of antituberculous drugs are considered on the basis of various polymers, liposomes, lipid nanoparticles, nanoemulsios, nanosuspensions, dendrimers, cyclodextrines. Influence of drug incorporation into nanoparticles, most often for rifampicin, on pharmacokinetics and efficiency in tuberculosis models is discussed. The most of works are devoted to polymer nanoparticles for oral administration where increased circulation time and efficiency were shown. The best results were observed after drug inclusion into solid lipid nanoparticles. The liposomes formulations were investigated mostly for inhalation and injection administrations. Positive results were also observed. Authors underline the viability of incorporation of antituberculous drugs into phospholipid nanoparticles that may increase intestinal absorption and bioavailability. It is confirmed by authors’ own data that showed increase of rifampicin efficiency after their incorporation into such nanoparticles. 


Author(s):  
Rahul Mittal ◽  
Vasanti M. Jhaveri ◽  
Sae-In Samantha Kay ◽  
Aubrey Greer ◽  
Kyle J. Sutherland ◽  
...  

Cardiovascular Diseases (CVDs) are a leading cause of morbidity and mortality worldwide. The underlying pathology for cardiovascular disease is largely atherosclerotic in nature and the steps include fatty streak formation, plaque progression and plaque rupture. While there is optimal drug therapy available for patients with CVD, there are also underlying drug delivery obstacles that must be addressed. Challenges in drug delivery warrant further studies for the development of novel and more efficacious medical therapies. An extensive understanding of the molecular mechanisms of disease in combination with current challenges in drug delivery serves as a platform for the development of novel drug therapeutic targets for CVD. The objective of this article is to review the pathogenesis of atherosclerosis, first-line medical treatment for CVD, and key obstacles in an efficient drug delivery.


Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4400
Author(s):  
Ali Sartaj ◽  
Zufika Qamar ◽  
Farheen Fatima Qizilbash ◽  
Annu ◽  
Shadab Md ◽  
...  

This manuscript aims to provide the latest update on polymeric nanoparticle drug delivery system for breast cancer treatment after 2015 and how research-oriented it is based on the available research data. Therefore, the authors have chosen breast cancer which is the most frequent and common reason for mortality in women worldwide. The first-line treatment for breast cancer treatment is chemotherapy, apart from surgery, radiation and hormonal therapy. Chemotherapy is associated with lesser therapeutics and undesirable side effects and hence. In addition, drug resistance affects the therapeutic dose to the target site. Although various nano-based formulations have been developed for effective treatment, the polymeric nanoparticles effectively avoid the lacunae of conventional chemotherapy. There has been an effort made to understand the chemotherapy drugs and their conventional formulation-related problems for better targeting and effective drug delivery for breast cancer treatment. Thus, the polymeric nanoparticles as a strategy overcome the associated problems with resulting dose reduction, enhanced bioavailability, reduced side effects, etc. This present review has compiled the research reports published from 2015 to 2021 from different databases, such as PubMed, Google Scholar, ScienceDirect, which are related to breast cancer treatment in which the drug delivery of numerous chemotherapeutic agents alone or in combination, including phytoconstituents formulated into various polymer-based nanoparticles.


Author(s):  
Kamila Butowska ◽  
Anna Woziwodzka ◽  
Agnieszka Borowik ◽  
Jacek Piosik

Doxorubicin, a member of the anthracycline family, is a common anticancer agent often used as a first line treatment for the wide spectrum of cancers. Doxorubicin-based chemotherapy, although effective, is associated with serious side effects, such as irreversible cardiotoxicity or nephrotoxicity. Those often life-threatening adverse risks, responsible for the elongation of the patients' recuperation period and increasing medical expenses, have prompted the need for creating novel and safer drug delivery systems. Among many proposed concepts, polymeric nanocarriers are shown to be a promising approach, allowing for controlled and selective drug delivery simultaneously enhancing its activity towards cancerous cells and reducing toxic effects on healthy tissues. This article is a chronological examination of the history of the work progress on polymeric nanostructures, designed as efficient doxorubicin nanocarriers, with the emphasis on the main achievements of 2010-2020. Numerous publications have been reviewed to provide an essential summation of the nanopolymer types and their essential properties, mechanisms towards efficient drug delivery, as well as active targeting stimuli-responsive strategies that are currently utilized in the doxorubicin transportation field.


Author(s):  
G.E. Visscher ◽  
R. L. Robison ◽  
G. J. Argentieri

The use of various bioerodable polymers as drug delivery systems has gained considerable interest in recent years. Among some of the shapes used as delivery systems are films, rods and microcapsules. The work presented here will deal with the techniques we have utilized for the analysis of the tissue reaction to and actual biodegradation of injectable microcapsules. This work has utilized light microscopic (LM), transmission (TEM) and scanning (SEM) electron microscopic techniques. The design of our studies has utilized methodology that would; 1. best characterize the actual degradation process without artifacts introduced by fixation procedures and 2. allow for reproducible results.In our studies, the gastrocnemius muscle of the rat was chosen as the injection site. Prior to the injection of microcapsules the skin above the sites was shaved and tattooed for later recognition and recovery. 1.0 cc syringes were loaded with the desired quantity of microcapsules and the vehicle (0.5% hydroxypropylmethycellulose) drawn up. The syringes were agitated to suspend the microcapsules in the injection vehicle.


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