Viser treff 181-200 av 358

    • Kan nanopartikulære formuleringer bedre behandlingen av genitale infeksjoner? 

      Jøraholmen, May Wenche; Acharya, Ganesh; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-20)
      Bruk av nanoteknologi innenfor medisin er økende, og mange nanopartikulære såkalte «drug delivery-systemer» er allerede ute på markedet og enda flere er i pipeline. Det er blant annet stor interesse for bruk av polymeriske miceller, dendrimerer, liposomer og polymeriske nanopartikler som nanobærere for legemidler. Potensialet som ligger i bruk av nanoteknologi er fremdeles ikke fullt utnyttet ...
    • Knowledge and need for information about non-prescription analgesics - A cross-sectional study among pharmacy customers 

      Knutsen, Vera S.; Oland, Oda; Eriksen, Karoline; Holst, Lone; Garcia, Beate Hennie; Waaseth, Marit (Conference object; Konferansebidrag, 2019)
      <p>Pain is among the most common causes for seeking drug treatment. There is widespread use of non-prescription analgesics, and previous studies suggest that the level of knowledge about these drugs is low. <p>The aim of the study was to describe the level of knowledge about nonprescription analgesics among pharmacy customers, thereby identifying population groups in high need of information. ...
    • Knowledge of antibiotics and antibiotic resistance among Norwegian pharmacy customers – a cross-sectional study 

      Waaseth, Marit; Adan, Abdifatah; Røen, Ingrid L.; Eriksen, Karoline; Stanojevic, Tijana; Halvorsen, Kjell H.; Garcia, Beate Hennie; Holst, Lone; Ulshagen, Karen Marie; Blix, Hege Salvesen; Ariansen, Hilde Louise; Nordeng, Hedvig Marie Egeland (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-15)
      <p><i>Background</i>: Antibiotic resistance is a global health threat. Public knowledge is considered a prerequisite for appropriate use of antibiotics and limited spread of antibiotic resistance. Our aim was to examine the level of knowledge of antibiotics and antibiotic resistance among Norwegian pharmacy customers, and to assess to which degree beliefs, attitudes and sociodemographic factors are ...
    • Knowledge, attitudes and practices related to self-medication with antimicrobials in Lilongwe, Malawi 

      Sambakunsi, Cecilia S.; Småbrekke, Lars; Varga, Christine A.; Solomon, Vernon; Mponda, John S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12)
      <i>Background</i> - The use of antimicrobials is associated with the emergence of antimicrobial resistance (AMR), and self-medication increases the risk of the inappropriate use of antimicrobials. This study aims to describe the knowledge, attitudes, and practices (KAP) regarding self-medication with antimicrobials among residents in Lilongwe, Malawi.<p><p> <i>Methodology</i> - This study has ...
    • Lecithin and Chitosan as Building Blocks in Anti-Candida Clotrimazole Nanoparticles 

      Hemmingsen, Lisa Myrseth; Panzacchi, Virginia; Kangu, Lloyd Mbugua; Giordani, Barbara; Luppi, Barbara; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-25)
      The main focus when considering treatment of non-healing and infected wounds is tied to the microbial, particularly bacterial, burden within the wound bed. However, as fungal contributions in these microbial communities become more recognized, the focus needs to be broadened, and the remaining participants in the complex wound microbiome need to be addressed in the development of new treatment ...
    • LIMT is a novel metastasis inhibiting lncRNA suppressed by EGF and downregulated in aggressive breast cancer 

      Sas-Chen, Aldema; Aure, Miriam Ragle; Leibovich, Limor; Carvalho, Silvia; Enuka, Yehoshua; Körner, Cindy; Polycarpou-Schwarz, Maria; Lavi, Sara; Nevo, Nava; Kuznetsov, Yuri; Yuan, Justin; Azuaje, Francisco; Ulitsky, Igor; Diederichs, Sven; Wiemann, Stefan; Yakhini, Zohar; Kristensen, Vessela N.; Børresen-Dale, Anne-Lise; Yarden, Yosef; Sauer, Torill; Geisler, Jürgen; Hofvind, Solveig; Bathen, Tone Frost; Borgen, Elin; Engebråten, Olav; Fodstad, Øystein; Garred, Øystein; Geitvik, Gry; Kåresen, Rolf; Naume, Bjørn; Mælandsmo, Gunhild; Russnes, Hege Elisabeth Giercksky; Schlichting, Ellen; Sørlie, Therese; Lingjærde, Ole Christian; Sahlberg, Kristine Kleivi; Skjerven, Helle; Fritzman, Britt (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-01)
      Long noncoding RNAs (lncRNAs) are emerging as regulators of gene expression in pathogenesis, including cancer. Recently, lncRNAs have been implicated in progression of specific subtypes of breast cancer. One aggressive, basal-like subtype associates with increased EGFR signaling, while another, the HER2-enriched subtype, engages a kin of EGFR Based on the premise that EGFR-regulated lncRNAs might ...
    • Lipidomics in ulcerative colitis reveal alteration in mucosal lipid composition associated with the disease state 

      Diab, Joseph; Hansen, Terkel; Goll, Rasmus; Stenlund, Hans; Ahnlund, Maria; Jensen, Einar; Moritz, Thomas; Florholmen, Jon; Forsdahl, Guro (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-11)
      <p><i>Background - </i>The onset of ulcerative colitis (UC) is associated with alterations in lipid metabolism and a disruption of the balance between pro- and anti-inflammatory molecules. Only a few studies describe the mucosal lipid biosignatures during active UC. Moreover, the dynamics of lipid metabolism in the remission state is poorly defined. Therefore, this study aims to characterize mucosal ...
    • Liposomal delivery of antibiotic loaded nucleic acid nanogels with enhanced drug loading and synergistic anti-inflammatory activity against S. aureus intracellular infections 

      Obuobi, Sybil Akua Okyerewa; Julin, Kjersti; Fredheim, Elizabeth G. Aarag; Johannessen, Mona; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-07)
      The persistence of <i>Staphylococcus aureus</i> has been accredited to its ability to escape immune response via host cell invasion. Despite the efficacy of many antibiotics against <i>S. aureus</i>, the high extracellular concentrations of conventional antibiotics required for bactericidal activity is limited by their low cellular accumulation and poor intracellular retention. While nanocarriers ...
    • Liposomal formulations of poorly soluble camptothecin: drug retention and biodistribution 

      Flaten, Gøril Eide; Chang, Ting-Tung; Phillips, William T.; Brandl, Martin; Bao, Ande; Goins, Beth (Journal article; Tidsskriftartikkel; Peer reviewed, 2012-12-05)
      Context: Camptothecin (CPT) represents a potent anticancer drug. Its therapeutic use however is impaired by both drug solubility, hydrolysis and protein interactions in vivo. Use of liposomes as drug formulation approach could overcome some of these challenges. <p>Objective: The objective of this study was to perform a mechanistic study of the incorporation and retention of the lipophilic parent ...
    • Liposomes for (trans)dermal drug delivery: the skin-PVPA as a novel in vitro stratum corneum model in formulation development 

      Palac, Zora; Engesland, André; Flaten, Gøril Eide; Skalko-Basnet, Natasa; Filipovic-Grcic, Jelena; Vanic, Zeljka (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-03-19)
      Penetration potential of vesicles destined for trans(dermal) administration remains to be of great interests both in respect to drug therapy and cosmetic treatment. This study investigated the applicability of the phospholipid vesicle-based permeation assay (PVPA) as a novel in vitro skin barrier model for screening purposes in preformulation studies. Various classes of liposomes containing hydrophilic ...
    • Liposomes-in-chitosan hydrogel boosts potential of chlorhexidine in biofilm eradication in vitro 

      Hemmingsen, Lisa Myrseth; Giordani, Barbara; Pettersen, Ann Kristin; Vitali, Beatrice; Basnet, Purusotam; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-16)
      Successful treatment of skin infections requires eradication of biofilms found in up to 90 % of all chronic wounds, causing delayed healing and increased morbidity. We hypothesized that chitosan hydrogel boosts the activity of liposomally-associated membrane active antimicrobials (MAA) and could potentially improve bacterial and biofilm eradication. Therefore, liposomes (∼300 nm) bearing chlorhexidine ...
    • Liposomes-in-hydrogel delivery system enhances the potential of resveratrol in combating vaginal chlamydia infection 

      Jøraholmen, May Wenche; Johannessen, Mona; Gravningen, Kirsten Midttun; Puolakkainen, Mirja; Acharya, Ganesh; Basnet, Purusotam; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-11)
      <i>Chlamydia trachomatis</i> is the most common cause of bacterial sexually transmitted infections and causes serious reproductive tract complications among women. The limitations of existing oral antibiotics and treatment of antimicrobial resistance require alternative treatment options. We are proposing, for the first time, the natural polyphenol resveratrol (RES) in an advanced delivery system ...
    • Liposomes-in-Hydrogel Delivery System with Mupirocin: In Vitro Antibiofilm Studies and In Vivo Evaluation in Mice Burn Model 

      Hurler, Julia; Sørensen, Karen Kristine; Fallalero, Adyary; Vuorela, Pia; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Previously, we have proposed mupirocin-in-liposomes-in-hydrogel delivery system as advanced delivery system with the potential in treatment of burns. In the current studies, we evaluated the system for its cytotoxicity, ability to prevent biofilm formation, act on the mature biofilms, and finally determined its potential as wound treatment in in vivo mice burn model.The system was found to be ...
    • Localized Therapy of Vaginal Infections and Inflammation: Liposomes-In-Hydrogel Delivery System for Polyphenols 

      Jøraholmen, May Wenche; Basnet, Purusotam; Tostrup, Mia; Moueffaq, Sabrin; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-27)
      Natural polyphenols, such as resveratrol (RES) or epicatechin (EPI), are attractive for treatments of various diseases, including vaginal infections and inflammation, because of their strong anti-oxidative and anti-inflammatory properties. However, their low solubility and consequent poor bioavailability limit their therapeutic uses. To overcome these limitations, a vaginal delivery system comprising ...
    • Longitudinal magnetic resonance imaging-based assessment of vascular changes and radiation response in androgen-sensitive prostate carcinoma xenografts under androgen-exposed and androgen-deprived conditions 

      Røe, Kathrine; Seierstad, Therese; Kristian, Alexandr; Mikalsen, Lars Tore G; Mælandsmo, Gunhild; van der Kogel, Albert; Ree, Anne Hansen; Olsen, Dag Rune (Journal article; Tidsskriftartikkel; Peer reviewed, 2010-10)
      Prostate cancer (PCa) patients receive androgen-deprivation therapy (ADT) to reduce tumor burden. However, complete eradication of PCa is unusual, and recurrent disease is evident within approximately 2 years in high-risk patients. Clinical evidence suggests that combining ADT with radiotherapy improves local control and disease-free survival in these patients compared with radiotherapy alone. ...
    • Low dose naltrexone in multiple sclerosis: Effects on medication use. A quasi-experimental study 

      Raknes, Guttorm; Småbrekke, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-03)
      Low dose naltrexone (LDN) has become a popular off-label therapy for multiple sclerosis (MS). A few small, randomized studies indicate that LDN may have beneficial effects in MS and other autoimmune diseases. If proven efficacious, it would be a cheap and safe alternative to the expensive treatments currently recommended for MS. We investigated whether a sudden increase in LDN use in Norway in 2013 ...
    • Low dose naltrexone: Effects on medication in rheumatoid and seropositive arthritis. A nationwide register-based controlled quasi-experimental before-after study 

      Raknes, Guttorm; Småbrekke, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-14)
      In recent years, low dose naltrexone (LDN) has been used as an off-label therapy for several chronic diseases. Results from small laboratory and clinical studies indicate some beneficial effects of LDN in autoimmune diseases, but clinical research on LDN in rheumatic disease is limited. Using a pharmacoepidemiological approach, we wanted to test the hypothesis that starting LDN leads to reduced ...
    • Low β2-adrenergic receptor level may promote development of castration resistant prostate cancer and altered steroid metabolism 

      Braadland, Peder; Grytli, Helene Hartvedt; Ramberg, Håkon Andre; Katz, Betina; Kellmann, Ralf; Fazli, Ladan; Krobert, Kurt Allen; Wang, Wanzhong; Levy, Finn Olav; Bjartell, Anders; Berge, Viktor; Rennie, Paul S.; Mellgren, Gunnar; Mælandsmo, Gunhild; Svindland, Aud; Tasken, Kristin Austlid; Gauthier-Landry, Louis; Barbier, Olivier (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      The underlying mechanisms responsible for the development of castration-resistant prostate cancer (CRPC) in patients who have undergone androgen deprivation therapy are not fully understood. This is the first study to address whether β2-adrenergic receptor (ADRB2)- mediated signaling may affect CRPC progression in vivo. By immunohistochemical analyses, we observed that low levels of ADRB2 is associated ...
    • Mandatory medication indications in electronic systems – the prescriber perspective 

      Baysari, Melissa; Del Gigante, Jessica; Moran, Maria; Lehnbom, Elin; Day, Richard (Journal article; Tidsskriftartikkel; Peer reviewed, 2019)
      As hospitals transition from paper to electronic medication charts, an opportunity exists to ‘nudge’ prescribers to document medication indications by making this data-entry field mandatory. The aim of this study was to explore hospital doctors’ perceptions of mandatory documentation of indications in an electronic medication management (EMM) system. Ten junior doctors took part in brief semi-structured ...
    • Mechanisms of antibiotic action shape the fitness landscapes of resistance mutations 

      Hemez, Colin; Clarelli, Fabrizio; Palmer, Adam C.; Bleis, Christina; Abel, Sören; Chindelevitch, Leonid; Cohen, Theodore; Abel zur Wiesch, Pia (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-24)
      Antibiotic-resistant pathogens are a major public health threat. A deeper understanding of how an antibiotic’s mechanism of action influences the emergence of resistance would aid in the design of new drugs and help to preserve the effectiveness of existing ones. To this end, we developed a model that links bacterial population dynamics with antibiotic-target binding kinetics. Our approach allows ...