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Gonciarz W, Brzeziński M, Orłowska W, Wawrzyniak P, Lewandowski A, Narayanan VHB, Chmiela M. Spray-dried pH-sensitive chitosan microparticles loaded with Mycobacterium bovis BCG intended for supporting treatment of Helicobacter pylori infection. Sci Rep 2024; 14:4747. [PMID: 38413775 PMCID: PMC10899647 DOI: 10.1038/s41598-024-55353-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/22/2024] [Indexed: 02/29/2024] Open
Abstract
Gram-negative spiral-shaped Helicobacter pylori (Hp) bacteria induce the development of different gastric disorders. The growing resistance of Hp to antibiotics prompts to search for new therapeutic formulations. A promising candidate is Mycobacterium bovis BCG (BCG) with immunomodulatory properties. Biodegradable mucoadhesive chitosan is a good carrier for delivering BCG mycobacteria to the gastric mucosal environment. This study aimed to show whether BCG bacilli are able to increase the phagocytic activity of Cavia porcellus-guinea pig macrophages derived from the bone marrow towards fluorescently labeled Escherichia coli. Furthermore, to encapsulate live BCG bacilli, in spray-dried chitosan microparticles (CHI-MPs), and assess the pH-dependent release of mycobacteria in pH conditions mimicking gastric (acidic) or gut (alkaline) milieu. Microparticles (MPs) were made of chitosan and coated with Pluronic F-127-(Plur) or N-Acetyl-D-Glucosamine-(GlcNAc) to increase the MPs resistance to low pH or to increase anti-Hp effect, respectively. Spray-drying method was used for microencapsulation of live BCG. The biosafety of tested CHI-MPs has been confirmed using cell models in vitro and the model of guinea pig in vivo. The CHI-MPs loaded with BCG released live mycobacteria at pH 3.0 (CHI-GlcNAc-MPs) or pH 8.0. (CHI-Plur-MPs). The CHI-MPs loaded with live BCG can be used for per os inoculation of Cavia porcellus to check the effectiveness of delivered mycobacteria in increasing anti-H. pylori host response.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland.
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636, Lodz, Poland.
| | - Weronika Orłowska
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland
| | - Paweł Wawrzyniak
- Department of Environmental Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Stefana Zeromskiego 116, 90-924, Lodz, Poland
| | - Artur Lewandowski
- Department of Environmental Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Stefana Zeromskiego 116, 90-924, Lodz, Poland
| | - Vedha Hari B Narayanan
- Pharmaceutical Technology Laboratory, #214, ASK-II, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613401, India
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland
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Hari BNV, Makowski T, Sowiński P, Domańska A, Gonciarz W, Brzeziński M. 3D printing of dolutegravir-loaded polylactide filaments as a long-acting implantable system for HIV treatment. Int J Biol Macromol 2024; 258:128754. [PMID: 38092121 DOI: 10.1016/j.ijbiomac.2023.128754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 12/06/2023] [Accepted: 12/09/2023] [Indexed: 12/25/2023]
Abstract
3D printing was used to prepare implantable systems or tablets loaded with dolutegravir to explore their potential as long-acting implantables (LAIs). Our strategy relies on preparing a polylactide (PLA) filament loaded with the anti-HIV drug. Subsequently, 3D printing was performed under conditions that allowed the PLA to be simultaneously melted and the drug encapsulated within the printed strand. The dolutegravir release profiles indicated its sustained release for 47 days. Furthermore, neat and drug-loaded tablets were characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA), while their morphology was assessed by scanning electron microscopy (SEM). Finally, their biocompatibility was proved by MTT assay against ISO standards recommended L929 mouse and human Hs68 skin fibroblast cells. All the results indicated that the 3D printing of PLA-based tablets could produce customized medications with potential applications against HIV.
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Affiliation(s)
- Bodethala Narayanan Vedha Hari
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636 Lodz, Poland; Pharmaceutical Technology Laboratory, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India.
| | - Tomasz Makowski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636 Lodz, Poland
| | - Przemysław Sowiński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636 Lodz, Poland
| | - Agnieszka Domańska
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636 Lodz, Poland.
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3
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Archana M, Rubini D, Dharshini KP, Hari BNV, Jayasankari S, Ramyadevi D, Gonciarz W, Domańska A, Brzeziński M, Nithyanand P. Development of an anti-infective urinary catheter composed of polyvinyl alcohol/sodium alginate/methylcellulose/polyethylene glycol by using a pressure-assisted 3D-printing technique. Int J Biol Macromol 2023; 249:126029. [PMID: 37524285 DOI: 10.1016/j.ijbiomac.2023.126029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/10/2023] [Accepted: 07/25/2023] [Indexed: 08/02/2023]
Abstract
Catheter-associated urinary tract infections (CAUTI) are a common complication associated with catheterization, leading to urosepsis, bacteriuria, and septicaemia. The present work focuses on 3D printing a urinary catheter with anti-infective properties using various concentrations of polyvinyl alcohol (PVA, e.g., 6-8 %), sodium alginate (NaAlg, e.g. 1-4 %), methylcellulose (MC, 5 %), polyethylene glycol (PEG, 5 %) impregnated with secnidazole, an antibiotic acting against Gram-negative bacteria. To produce suitable polymer ink for Pressure Assisted Microsyringe (PAM) 3D printing, the cross-linked between NaAlg and calcium chloride is necessary to prepare the catheter. The optimised catheter was found to have an outer diameter of 5 mm, an inner diameter of 3.5 mm, and a length of the catheter of 50 mm. The analysis by various methods confirms the successful incorporation of secnidazole in the 3D-printed catheter. A drug-loaded/coated catheter showed an initial drug release of 79 % following a sustained release to reach 100 % within 5 h. Weibull model fits well with the drug release data. The release models suggest the Quasi-Fickian diffusion mechanism from the system. Moreover, the secnidazole 3D printed catheter disrupted biofilms and suppressed all the Quorum sensing mediated virulence factors of two important keystone pathogens causing urinary tract infections.
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Affiliation(s)
- Menon Archana
- Pharmaceutical Technology Laboratory, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India
| | - Durairajan Rubini
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India
| | - Krishnan Priya Dharshini
- Pharmaceutical Technology Laboratory, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India
| | - Bodethala Narayanan Vedha Hari
- Pharmaceutical Technology Laboratory, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India; Centre of Molecular and Macromolecular Studies in Łódź, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Senthilganesh Jayasankari
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India
| | - Durai Ramyadevi
- Pharmaceutical Technology Laboratory, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India
| | - Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Agnieszka Domańska
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies in Łódź, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Paramasivam Nithyanand
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, Tamil Nadu, India.
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Brzeziński M, Makowski T, Gonciarz W. Nanohybrids Composed of Tannic Acid Cross-Linked by Metal Ions Obtained by a Microfluidic Technique. J Pharm Sci 2023; 112:2137-2141. [PMID: 37327993 DOI: 10.1016/j.xphs.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/09/2023] [Accepted: 06/09/2023] [Indexed: 06/18/2023]
Abstract
Naturally occurring compounds, such as tannic acid (TA), are perfect for constructing nanohybrids (NHs) with metal ions due to their anticarcinogenic, antimicrobial, and antioxidant properties. To date, the batch methods are the ones in which such NHs were constructed; however, those methods possess many drawbacks, such as low reproducibility or size variations. To overcome this limitation, microfluidic preparation is proposed for NHs construction composed of TA and iron (III). The spherical particles with a size between 70 and 150 nm and antimicrobial properties can be easily fabricated in a controlled manner.
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Affiliation(s)
- Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Tomasz Makowski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
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5
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Gonciarz W, Chmiela M, Kost B, Piątczak E, Brzeziński M. Stereocomplexed microparticles loaded with Salvia cadmica Boiss. extracts for enhancement of immune response towards Helicobacter pylori. Sci Rep 2023; 13:7039. [PMID: 37120681 PMCID: PMC10148839 DOI: 10.1038/s41598-023-34321-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/27/2023] [Indexed: 05/01/2023] Open
Abstract
Controlled delivery of therapeutic substance gives numerous advantages (prevents degradation, improves uptake, sustains concentration, lowers side effects). To encapsulate Salvia cadmica extracts (root or aerial part), enriched with polyphenols with immunomodulatory activity, in stereocomplexed microparticles (sc-PLA), for using them to enhance the immune response towards gastric pathogen Helicobacter pylori. Microparticles were made of biodegradable poly(lactic acid) (PLA) and poly(D-lactic acid) (PDLA). Their stereocomplexation was used to form microspheres and enhance the stability of the obtained particles in acidic/basic pH. The release of Salvia cadmica extracts was done in different pH (5.5, 7.4 and 8.0). The obtained polymers are safe in vitro and in vivo (guinea pig model). The sc-PLA microparticles release of S. cadmica extracts in pH 5.5, 7.4, and 8.0. S. cadmica extracts enhanced the phagocytic activity of guinea pig bone marrow-derived macrophages, which was diminished by H. pylori, and neutralized H. pylori driven enhanced production of tumor necrosis factor (TNF)-α and interleukin (IL)-10. The sc-PLA encapsulated S. cadmica extracts can be recommended for further in vivo study in guinea pigs infected with H. pylori to confirm their ability to improve an immune response towards this pathogen.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, Institute of Microbiology, Biotechnology and Immunology, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland.
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, Institute of Microbiology, Biotechnology and Immunology, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland
| | - Bartłomiej Kost
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636, Lodz, Poland
| | - Ewelina Piątczak
- Department of Pharmaceutical Biotechnology, Medical University of Lodz, Muszyńskiego 1, 90-151, Lodz, Poland
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636, Lodz, Poland.
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6
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Brzeziński M, Gonciarz W, Kost B, Mikołajczyk-Chmiela M. Can histamine cause an enhancement of the cellular uptake and cytotoxicity of doxorubicin-loaded polylactide nanoparticles? Eur J Pharm Sci 2023; 185:106438. [PMID: 37001569 DOI: 10.1016/j.ejps.2023.106438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023]
Abstract
Histamine (His) in humans is physiologically involved in neurotransmission and increases vascular permeability during the development of inflammatory response and immunity. It could be used to enhance drug-loaded nanoparticles (NPs) distribution. However, it cannot be freely delivered due to the risk of His-dose-dependent deleterious effects. His can be attached to the polymeric backbone during polymerization to overcome this limitation. In this study, His was used as an initiator of lactide polymerization, and the obtained macromolecules were subsequently used to prepare doxorubicin (DOX)-loaded NPs by nanoprecipitation and microfluidics for examination of anti-cancer properties. Notably, the in vitro activity towards gastric cancer cells (AGS) of the NPs composed of histamine-functionalized polylactides (PLAs) was greatly enhanced compared to control NPs built from hydroxy‑functionalized PLAs. Furthermore, Zonula occludens-1 (ZO-1) tight junction protein production was significantly diminished after treating cells with DOX-loaded NPs assembled with PLAs with histamine residues. These results demonstrate the synergistic effect in cytotoxicity towards gastric cancer cells of DOX and the histamine that are carried by NPs. It is believed that His-DOX NPs strategy may lead to effective, targeted, and low-toxic delivery of drugs into cancer cells.
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Kopka B, Kost B, Wrześniewska J, Rajkowska K, Kadłubowski S, Kunicka-Styczyńska A, Baryga A, Gonciarz W, Basko M, Brzeziński M. Supramolecular poly(vinyl alcohol)-based hydrogels containing quercetin for bacterial and fungal elimination. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Kost B, Basko M, Bednarek M, Socka M, Kopka B, Łapienis G, Biela T, Kubisa P, Brzeziński M. The influence of the functional end groups on the properties of polylactide-based materials. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Metelska P, Brzeziński M, Szarszewski A. Child health status from the parents perspective - judgement accuracy verification. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab165.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The assessment of an individual's health condition is a challenge because of the wide range of forms and values contained within the meaning of the term ‘health'. In case of less independent groups, it is necessary to use the assessments of the guardians or proxies. This is the case when the health status of minors is being assessed. Proper assessment by parents is often crucial to take appropriate action to maintain the child's health. Objectivity of parental assessment should be verified. The aim of presented study was to assess the impact of selected factors on the parents' perception of their children's health.
Methods
The material for analysis was the results of anthropometric studies and questionnaire interviews conducted with 28891 parents of children between 6 and 14 years of age from Gdańsk -participating in screening tests during the health program 6-10-14 for Health.
Results
In the study group prevalence of excess body mass increases with age and frequency of underweight decreases with age. No significant intergroup differences were observed, therefore the opinion on the child's body weight is not affected by real body mass of parents. In families where parents declare excess body mass, the child's body mass is more often estimated incorrectly. These parents significantly lower their children's body weight.
Conclusions
The correct assessment of the child's state of health and behaviors related to health is not dependent on parents' weight and level of education, but it depends on parents' opinion about their body weight. Almost ¼ of parents (24.6%) is wrong when they estimate their child's body weight. The main cause of error is the perception of their own body mass. Parents' ratings for healths-related behaviors show very low sensitivity and specificity. There is a need for objectification of assessment in relation to the child's health. It is necessary to use verification methods of information given by parents.
Key messages
In-depth interviews are valuable. ‘Simple' questions don’t provide accurate answers, but often introduce false information to medical records. Family history that is part of the study should be extended by standardized questions. It will allow medical professionals to get reliable information from parents about their child.
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Affiliation(s)
- P Metelska
- Department of Public Health and Social Medicine, Medical University of Gdańsk, Gdańsk, Poland
- 6-10-14 for Health - health program, Medical Clinical Center, Gdańsk, Poland
| | - M Brzeziński
- Department of Paediatrics, Gastroenterology, Allergology & Paediatric Nutrition, Medical University of Gdańsk, Gdańsk, Poland
| | - A Szarszewski
- Department of Social Medicine, Medical University of Gdańsk, Gdańsk, Poland
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Metelska P, Brzeziński M, Jankowski M, Niedzielska A. 6-10-14 for Health - as an example of an interdisciplinary model of care for a patient with obesity. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab165.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Issue
Overweight and obesity are public health challenges of growing importance in Poland. The fastest increase has been observed in children and adolescents. Some studies show that 22% of elementary school children are currently (2013) overweight or have obesity (IZZ), compared with no more than 15% in 1990 (WHO Europe, 2012).
Description of the problem
The “6-10-14 for Health” is the first comprehensive health programme implemented in Poland, focused on long-term health behaviour change both among children with obesity and their families. Screening tests are carried out at Gdańsk schools. Children who are diagnosed with excess body weight are invited to the second level of programme. Target groups are children in Gdansk, aged 6, 9-11 and 14 years, their parents and the school environment. Timeline: 2011-2021
Results
effects: Approximately 400-450 new patients join the programme every year. Programme participants receive annual care from an interdisciplinary team of specialists including a paediatrician, dietitian, specialist in physical activity and a psychologist. The effect of one year's participation in the programme is the reduction of excess body weight in 75% of participants. More then 2000 patients have complieted the Programme. The programme is accredited by the European Association for the Study of Obesity and is funded by the City of Gdańsk. changes: Further implementation of the Programme depends on providing funds from the City of Gdańsk. However, it seems that the 6-10-14 for Health is one of the city's health priorities. The challenge in the field of weight reduction programs is to provide care that will not lead to stigmatization of patients
Lessons
The work on designing the model has already resulted in creation of network of specialists from different backgrounds and allowed sharing different scopes, how to use limited resources for the benefit of children and adolescens.
Key messages
The proposed care model is fully possible to implement in the care system. So far, sharing knowledge and experience, the program has been implemented in several other local governments. In the era of the COVID19 pandemic, all activities aimed at the prevention and early treatment of obesity become even more important.
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Affiliation(s)
- P Metelska
- Department of Public Health and Social Medicine, Medical University of Gdańsk, Gdańsk, Poland
- 6-10-14 for Health - health program, Medical Clinical Center, Gdańsk, Poland
| | - M Brzeziński
- Department of Paediatrics, Gastroenterology, Allergology & Paediatric Nutrition, Medical University of Gdańsk, Gdańsk, Poland
| | - M Jankowski
- Gdańsk Center for Health Promotion and Addiction Prevention, Gdańsk, Gdańsk, Poland
- 6-10-14 for Health - health program, Medical Clinical Center, Gdańsk, Poland
| | - A Niedzielska
- Gdańsk Center for Health Promotion and Addiction Prevention, Gdańsk, Gdańsk, Poland
- 6-10-14 for Health - health program, Medical Clinical Center, Gdańsk, Poland
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Brzeziński M, Kost B, Gonciarz W, Krupa A, Socka M, Rogala M. Nanocarriers based on block copolymers of l-proline and lactide: The effect of core crosslinking versus its pH-sensitivity on their cellular uptake. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kost B, Gonciarz W, Krupa A, Socka M, Rogala M, Biela T, Brzeziński M. pH-tunable nanoparticles composed of copolymers of lactide and allyl-glycidyl ether with various functionalities for the efficient delivery of anti-cancer drugs. Colloids Surf B Biointerfaces 2021; 204:111801. [PMID: 33957491 DOI: 10.1016/j.colsurfb.2021.111801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
The designing of biocompatible nanocarriers for the efficient delivery of their cargos to the desired targets remains a challenge. In this regard, the most promising strategy relies on the construction of pH- or thermo-responsive nanoparticles (NPs). However, it is also important to preserve the balance between the responsiveness of the carrier and their stability in physiological conditions. Therefore, we described a new family of copolymers of lactide and allyl-glycidyl ether which were subsequently modified by thiol-ene reaction to functionalize the resulting copolymer with acetylcysteine (ACC) or thioglycolic acid (tGA) moieties. Subsequently, these copolymers were used to obtain blank and doxorubicin (DOX) loaded NPs with an average diameter of about 50-100 nm. Interestingly, the NPs were stable in different pH conditions, however, the presence of ACC or tGA units in the polymeric chain allows for the reduction of the undesired burst release due to the supramolecular interactions between polymeric pedant groups and DOX. The release tests of DOX from NPs showed that DOX release rate decrease depending on the pH values and the copolymer functionalization in order of non-modified NPs > ACC-modified NPs > tGA functionalized NPs. Most importantly, the MTT assay showed that all blank NPs are non-toxic against the normal L929 cell line. Subsequently, the antitumor efficiency of the obtained NPs was tested towards L929 (murine fibroblast cell line), HeLa (cervical cancer), and AGS (human gastric adenocarcinoma cancer) cells. The results demonstrated that DOX-loaded NPs efficiently induce the reduction in the viability of the HeLa and AGS cell, and this reduction in the viability was even below 20 % for the AGS cells. Together with their biocompatibility, the obtained NPs offer a novel route for the preparation of nanocarriers for the controlled and efficient delivery of anticancer drugs.
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Affiliation(s)
- B Kost
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland.
| | - W Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland
| | - A Krupa
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland.
| | - M Socka
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland
| | - M Rogala
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Solid State Physics, Pomorska 149/153, 90-236, Lodz, Poland
| | - T Biela
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland
| | - M Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland.
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13
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Śniadecki M, Orłowska-Volk M, Brzeziński M, Stickeler E, Werner M. Limited indication for neoadjuvant chemotherapy for patients with specific morphological and clinical factors on the basis of individualized exclusion criteria. Breast 2021. [DOI: 10.1016/s0960-9776(21)00185-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Zalewski A, Szymura M, Kowalczyk R, Brzeziński M. Low individual diet variation and high trophic niche overlap between the native polecat and invasive American mink. J Zool (1987) 2021. [DOI: 10.1111/jzo.12871] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Zalewski
- Mammal Research Institute Polish Academy of Sciences Białowieża Poland
| | - M. Szymura
- Mammal Research Institute Polish Academy of Sciences Białowieża Poland
| | - R. Kowalczyk
- Mammal Research Institute Polish Academy of Sciences Białowieża Poland
| | - M. Brzeziński
- Faculty of Biology University of Warsaw Warszawa Poland
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Brzeziński M, Socka M, Makowski T, Kost B, Cieślak M, Królewska-Golińska K. Microfluidic-assisted nanoprecipitation of biodegradable nanoparticles composed of PTMC/PCL (co)polymers, tannic acid and doxorubicin for cancer treatment. Colloids Surf B Biointerfaces 2021; 201:111598. [PMID: 33618081 DOI: 10.1016/j.colsurfb.2021.111598] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/13/2021] [Accepted: 01/26/2021] [Indexed: 12/12/2022]
Abstract
This study was aimed towards the development of a novel microfluidic approach for the preparation of (co)polymeric and hybrid nanoparticles (NPs) composed of (co)polymers/tannic acid (TA) in the microfluidic flow-focusing glass-capillary device. The MiliQ water was used as water phase, whereas the organic phase was composed of poly(ε-caprolactone) (PCL) and poly(trimethylene carbonate) (PTMC) homopolymers and (co)polymers with different proportion of comonomers which were prepared via enzymatic polymerization that allows avoiding the usage of potentially toxic catalyst. To prepare hybrid NPs, TA was additionally added to the organic phase. Subsequently, as a result of mixing between these distinct phases in microfluidic channels, the nanoprecipitation in the form of spherical NPs occurs. The size of NPs was tuned over the range of 140-230 nm by controlling phase flow rates and the composition of NPs. Moreover, the release studies of the encapsulated anticancer drug doxorubicin (DOX) demonstrated that the drug release is greatly influenced by the (co)polymers composition, their molecular weight, NPs size, and the presence of TA. The antitumor activities of the (co)polymeric and hybrid NPs toward breast cancer cells (MCF-7) were tested in vitro. Among all tested formulation, the NPs composed of PCL/TA most efficiently inhibit the cell proliferation of MCF-7 cells, most importantly, their efficiency was higher than free DOX. The proposed strategy may provide an efficient alternative for the construction of nanocarriers with great potential in anticancer therapy.
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Affiliation(s)
- Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland.
| | - Marta Socka
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Tomasz Makowski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Bartłomiej Kost
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Marcin Cieślak
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Karolina Królewska-Golińska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
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Priya Dharshini K, Fang H, Ramya Devi D, Yang JX, Luo RH, Zheng YT, Brzeziński M, Vedha Hari BN. pH-sensitive chitosan nanoparticles loaded with dolutegravir as milk and food admixture for paediatric anti-HIV therapy. Carbohydr Polym 2020; 256:117440. [PMID: 33483020 DOI: 10.1016/j.carbpol.2020.117440] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/28/2020] [Accepted: 11/19/2020] [Indexed: 11/17/2022]
Abstract
The present study aims to develop Chitosan-based polymeric nanoparticles of anti-HIV drug Dolutegravir, to aid appropriate dose adjustment and ease of oral administration as milk and food admixture for children. The isolated Chitosan from the crab shell species Portunus Sanguinolentus has been characterized for their physicochemical properties. Nanoparticles were developed with varying ratio of drug: Chitosan and assessed for particle size (140-548 nm), zeta potential (+26.1 mV) with a maximum of 75 % drug content. Nanoparticles exhibited improved stability and drug release in the 0.1 N HCl medium compared to pure drug. The MTT assay and the Syncytia inhibition assay in C8166 (T-lymphatic cell line) infected with HIVIIIB viral strain, which showed better therapeutic efficiency and lesser cytotoxicity compared to the pure drug. In consonance with the data obtained, the use of chitosan from a novel source for drug delivery carrier has opened exceptional prospects for delivering drugs efficiently to paediatrics.
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Affiliation(s)
- K Priya Dharshini
- Pharmaceutical Technology Laboratory, ASK-II, Lab No: 214, SASTRA Deemed-to-be-University, Thanjavur 613401, Tamil Nadu, India
| | - Hao Fang
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - D Ramya Devi
- Pharmaceutical Technology Laboratory, ASK-II, Lab No: 214, SASTRA Deemed-to-be-University, Thanjavur 613401, Tamil Nadu, India
| | - Jin-Xuan Yang
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Rong-Hua Luo
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Yong-Tang Zheng
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies in Łódź, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - B N Vedha Hari
- Pharmaceutical Technology Laboratory, ASK-II, Lab No: 214, SASTRA Deemed-to-be-University, Thanjavur 613401, Tamil Nadu, India.
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Kost B, Brzeziński M, Socka M, Baśko M, Biela T. Biocompatible Polymers Combined with Cyclodextrins: Fascinating Materials for Drug Delivery Applications. Molecules 2020; 25:E3404. [PMID: 32731371 PMCID: PMC7435941 DOI: 10.3390/molecules25153404] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022] Open
Abstract
Cyclodextrins (CD) are a group of cyclic oligosaccharides with a cavity/specific structure that enables to form inclusion complexes (IC) with a variety of molecules through non-covalent host-guest interactions. By an elegant combination of CD with biocompatible, synthetic and natural polymers, different types of universal drug delivery systems with dynamic/reversible properties have been generated. This review presents the design of nano- and micro-carriers, hydrogels, and fibres based on the polymer/CD supramolecular systems highlighting their possible biomedical applications. Application of the most prominent hydrophobic aliphatic polyesters that exhibit biodegradability, represented by polylactide and polycaprolactone, is described first. Subsequently, particular attention is focused on materials obtained from hydrophilic polyethylene oxide. Moreover, examples are also presented for grafting of CD on polysaccharides. In summary, we show the application of host-guest interactions in multi-component functional biomaterials for controlled drug delivery.
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Affiliation(s)
- Bartłomiej Kost
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (M.S.); (M.B.); (T.B.)
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (M.S.); (M.B.); (T.B.)
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Kost B, Svyntkivska M, Brzeziński M, Makowski T, Piorkowska E, Rajkowska K, Kunicka-Styczyńska A, Biela T. PLA/β-CD-based fibres loaded with quercetin as potential antibacterial dressing materials. Colloids Surf B Biointerfaces 2020; 190:110949. [DOI: 10.1016/j.colsurfb.2020.110949] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 03/02/2020] [Accepted: 03/04/2020] [Indexed: 01/30/2023]
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Brzeziński M, Michalski A, Kost B, Socka M, Florczak M, Łapienis G, Biela T. Simultaneous Stereocomplexation of Polylactides during Polymerization of
d
‐LA in the Presence of a PLLA Template. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marek Brzeziński
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
| | - Adam Michalski
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
| | - Bartłomiej Kost
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
| | - Marta Socka
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
| | - Marcin Florczak
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
| | - Grzegorz Łapienis
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
| | - Tadeusz Biela
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
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Socka M, Sitko M, Boncel S, Kost B, Chrobok A, Brzeziński M. Nanobiocatalyst from lipase non-covalently immobilized on multiwalled carbon nanotubes for copolymerization of ε-caprolactone and trimethylene carbonate. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.109000] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Kost B, Brzeziński M, Cieślak M, Królewska-Golińska K, Makowski T, Socka M, Biela T. Stereocomplexed micelles based on polylactides with β-cyclodextrin core as anti-cancer drug carriers. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109271] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Brzeziński M, Socka M, Kost B. Microfluidics for producing polylactide nanoparticles and microparticles and their drug delivery application. POLYM INT 2019. [DOI: 10.1002/pi.5753] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marek Brzeziński
- Polymer Department, Centre of Molecular and Macromolecular StudiesPolish Academy of Sciences Łódź Poland
| | - Marta Socka
- Polymer Department, Centre of Molecular and Macromolecular StudiesPolish Academy of Sciences Łódź Poland
| | - Bartłomiej Kost
- Polymer Department, Centre of Molecular and Macromolecular StudiesPolish Academy of Sciences Łódź Poland
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Affiliation(s)
- Adam Michalski
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Marta Socka
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Tadeusz Biela
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
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Brzeziński M, Ignatiuk P, Żmihorski M, Zalewski A. An invasive predator affects habitat use by native prey: American mink and water vole co-existence in riparian habitats. J Zool (1987) 2017. [DOI: 10.1111/jzo.12500] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Brzeziński
- Faculty of Biology; University of Warsaw; Warszawa Poland
| | - P. Ignatiuk
- Faculty of Biology; University of Warsaw; Warszawa Poland
| | - M. Żmihorski
- Institute of Nature Conservation; Polish Academy of Sciences; Kraków Poland
- Department of Ecology; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - A. Zalewski
- Mammal Research Institute; Polish Academy of Sciences; Białowieża Poland
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Kowalik M, Lango R, Chmara M, Lewandowski K, Brzeziński M, Wasąg B, Jagielak D, Rogowski J. Blunting effect of dexamethasone on postoperative IL-6 level is associated with IL6 genotypes. J Cardiothorac Vasc Anesth 2017. [DOI: 10.1053/j.jvca.2017.02.125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Affiliation(s)
- Marek Brzeziński
- Freie Universität Berlin; Institute of Chemistry and Biochemistry; Takustr. 3 14195 Berlin Germany
- Helmholtz-Zentrum Berlin; EM-ISFM Soft Matter and Functional Materials; Hahn-Meitner-Platz 1 14109 Berlin Germany
- Department of Polymer Chemistry; Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 122 90-363 Lodz Poland
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Sobiech P, Adamiak Z, Holak P, Jastrzębski P, Rogowski J, Brzeziński M, Bury K, Jałyński M, Baumgartner W. Thromboelastographic profile of goat blood after the experimental injury of the femoral artery and use of QuikClot gauze and Celox gauze dressings. Pol J Vet Sci 2017; 20:45-49. [DOI: 10.1515/pjvs-2017-0007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
AbstractThe aim of this study was to evaluate the suitability of thromboelastometry for the analysis of blood test results in goats after the use of hemostatic dressings to control massive bleeding. The study was carried out on 12 goats, 6 animals in each of two subgroups. In all experimental animals incision of the femoral artery was performed, and bleeding was controlled with QuikClot gauze in the first group and Celox gauze in the second group. Dressings were applied for 60 minutes. Blood samples for thromboelastometry were collected from the jugular vein before the incision and 60 min after the application of a dressing. Clotting time (CT), clot formation time (CFT), maximum clot firmness (MCF) and α angle (°) were measured in three standard ROTEM assays (system with generation of reaction curve, numerical parameters and size of the blood clot): intrinsic coagulation pathway (INTEM), extrinsic coagulation pathway (EXTEM) and functional fibrinogen (FIBTEM). Complete hemostasis of the injured femoral artery was found in all goats. No significant differences between pre- and post-incision thromboelastometric parameters were found in any tests in any of the groups, which indicates that the use of dressings was not associated with blood coagulation disorders. This study is the first to describe the use of thromboelastometry in goats for the assessment of clot formation and hemostatic disorders.
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Brzeziński M, Kacprzak A, Calderón M, Seiffert S. Metallo-Polymer Chain Extension Controls the Morphology and Release Kinetics of Microparticles Composed of Terpyridine-Capped Polylactides and their Stereocomplexes. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600790] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Marek Brzeziński
- Polish Academy of Sciences; Department of Polymer Chemistry; Centre of Molecular and Macromolecular Studies; Sienkiewicza, 112 90-363 Lodz Poland
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 D-14195 Berlin Germany
| | - Anna Kacprzak
- Polish Academy of Sciences; Department of Polymer Chemistry; Centre of Molecular and Macromolecular Studies; Sienkiewicza, 112 90-363 Lodz Poland
| | - Marcelo Calderón
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 D-14195 Berlin Germany
| | - Sebastian Seiffert
- Institute of Physical Chemistry; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
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Florczak M, Michalski A, Kacprzak A, Brzeziński M, Biedroń T, Pająk A, Kubisa P, Biela T. MALDI-TOF analysis of lactide oligomers with functional end groups. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Brzeziński M, Bury K, Dąbrowski L, Holak P, Sejda A, Pawlak M, Jagielak D, Adamiak Z, Rogowski J. The New 3D Printed Left Atrial Appendage Closure with a Novel Holdfast Device: A Pre-Clinical Feasibility Animal Study. PLoS One 2016; 11:e0154559. [PMID: 27219618 PMCID: PMC4878741 DOI: 10.1371/journal.pone.0154559] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 04/15/2016] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Many patients undergoing cardiac surgery have risk factors for both atrial fibrillation (AF) and stroke. The left atrial appendage (LAA) is the primary site for thrombi formation. The most severe complication of emboli derived from LAA is stroke, which is associated with a 12-month mortality rate of 38% and a 12-month recurrence rate of 17%. The most common form of treatment for atrial fibrillation and stroke prevention is the pharmacological therapy with anticoagulants. Nonetheless this form of therapy is associated with high risk of major bleeding. Therefore LAA occlusion devices should be tested for their ability to reduce future cerebral ischemic events in patients with high-risk of haemorrhage. AIM The aim of this study was to evaluate the safety and feasibility of a novel left atrial appendage exclusion device with a minimally invasive introducer in a swine model. MATERIALS AND METHODS A completely novel LAA device, which is composed of two tubes connected together using a specially created bail, was designed using finite element modelling (FEM) to obtain an optimal support force of 36 N at the closure line. The monolithic form of the occluder was obtained by using additive manufacturing of granular PA2200 powder with the technology of selective laser sintering (SLS). Fifteen swine were included in the feasibility tests, with 10 animals undergoing fourteen days of follow-up and 5 animals undergoing long-term observation of 3 months. For one animal, the follow-up was further prolonged to 6 months. The device was placed via minithoracotomy. After the observation period, all of the animals were euthanized, and their hearts were tested for LAA closure and local inflammatory and tissue response. RESULTS After the defined observation period, all fifteen hearts were explanted. In all cases the full closure of the LAA was achieved. The macroscopic and microscopic evaluation of the explanted hearts showed that all devices were securely integrated in the surrounding tissues. No pericarditis or macroscopic signs of inflammation at the site of the device were found. All pigs were in good condition with normal weight gain and no other clinical symptoms. CONCLUSION This novel 3D printed left atrial appendage closure technique with a novel holdfast device was proven to be safe and feasible in all pigs. A benign healing process without inflammation and damage to the surrounding structures or evidence of new thrombi formation was observed. Moreover, the uncomplicated survival and full LAA exclusion in all animals demonstrate the efficacy of this novel and relatively cheap device. Further clinical evaluation and implementation studies should be performed to introduce this new technology into clinical practice.
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Affiliation(s)
- M. Brzeziński
- Department of Cardiac and Vascular Surgery, Medical University of Gdansk, Gdansk, Poland
| | - K. Bury
- Department of Cardiac and Vascular Surgery, Medical University of Gdansk, Gdansk, Poland
- * E-mail:
| | - L. Dąbrowski
- Faculty of Mechanical Engineering, Gdansk University of Technology, Gdansk, Poland
| | - P. Holak
- Department of Surgery and Roentgenology, Faculty of Veterinary Medicine, University of Warmia and Mazury Olsztyn, Olsztyn, Poland
| | - A. Sejda
- Department of Pathomorphology, Medical University of Gdansk, Gdansk, Poland
| | - M. Pawlak
- Department of Cardiac and Vascular Surgery, Medical University of Gdansk, Gdansk, Poland
| | - D. Jagielak
- Department of Cardiac and Vascular Surgery, Medical University of Gdansk, Gdansk, Poland
| | - Z. Adamiak
- Department of Surgery and Roentgenology, Faculty of Veterinary Medicine, University of Warmia and Mazury Olsztyn, Olsztyn, Poland
| | - J. Rogowski
- Department of Cardiac and Vascular Surgery, Medical University of Gdansk, Gdansk, Poland
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Michalski A, Makowski T, Biedroń T, Brzeziński M, Biela T. Controlling polylactide stereocomplex (sc-PLA) self-assembly: From microspheres to nanoparticles. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Affiliation(s)
- Marek Brzeziński
- Department of Polymer Chemistry Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Tadeusz Biela
- Department of Polymer Chemistry Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
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Affiliation(s)
- M. Brzeziński
- Department of Polymer Chemistry,
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 122, Lodz, Poland
| | - T. Biela
- Department of Polymer Chemistry,
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 122, Lodz, Poland
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Brzeziński M, Bogusławska M, Ilčíková M, Mosnáček J, Biela T. Unusual Thermal Properties of Polylactides and Polylactide Stereocomplexes Containing Polylactide-Functionalized Multi-Walled Carbon Nanotubes. Macromolecules 2012. [DOI: 10.1021/ma301554q] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Brzeziński
- Department of Polymer
Chemistry
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
| | - M. Bogusławska
- Department of Polymer
Chemistry
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
| | - M. Ilčíková
- Polymer Institute, Centre of
Excellence FUN-MAT, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 41 Bratislava, Slovakia
| | - J. Mosnáček
- Polymer Institute, Centre of
Excellence FUN-MAT, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 41 Bratislava, Slovakia
| | - T. Biela
- Department of Polymer
Chemistry
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
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Biedroń T, Brzeziński M, Biela T, Kubisa P. Microspheres from stereocomplexes of polylactides containing ionic liquid end-groups. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26266] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wojciechowski J, Znaniecki L, Brzeziński M. Obturator Artery Aneurysm. Eur J Vasc Endovasc Surg 2005. [DOI: 10.1016/j.ejvs.2005.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cichoń S, Barczyński M, Anielski R, Barczyński MŁ, Hładki W, Brzeziński M, Trystuła M. [Should we operate goiter in the elderly?]. Przegl Lek 2002; 58:439-42. [PMID: 11603179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
The aim of this study was to compare the elderly patients group to the group of others undergoing surgical treatment due to goitre regarding type of goitre, extent of surgical procedures and postoperative follow-up (including early postoperative complications). 5872 patients with various type of goitre (between 1984 and 1998) were surgically treated, among them were 5244 (89.3%) females and 628 (10.7%) males (sex ratio as 8.1:1). The mean age was 46.1 (10 to 95 years). 278 (4.7%) patients were above 70 years of age (235-84.5% females and 43-15.5% males), their mean age was 73.7 years. The increase of malignant goitre was evident among the elderly patients (19.9% vs 5.5%). The dominant types were anaplastic cancers and malignant non-Hodgkin lymphomas. Much more frequently a giant goitre was diagnosed (20% vs 6.1%). It was localised substernally (39.6%) or intrathoracic (4.7%). The elderly prepared properly underwent surgical treatment quite well. Among early postoperative complications in the elderly dominant were surgical ones (6.8%), most frequently the injuries of the recurrent laryngeal nerve (4.67% vs 1.14%). Perioperative mortality regarded mostly the elderly with disseminated anaplastic cancer (3.6% vs. 0.2%). Surgical treatment of goitre in the elderly is a safe and justified method. High incidence of malignant tumours especially anaplastic cancers among the elderly should encourage to operation as early as possible.
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Affiliation(s)
- S Cichoń
- Klinika Chirurgii Endokrynologicznej, III Katedry Chirurgii Ogólnej CM UJ, 31-202 Kraków, ul. Pradnicka 37
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Cichoń S, Brzeziński M, Orlicki P, Pasierb S. [Mechanical ileus from material of the IIIrd Department of Surgery at the College of Medicine of the Jagiellonian University]. Przegl Lek 1997; 54:154-7. [PMID: 9297189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Retrospective analysis of 177 patients with mechanical ileus was performed. The mean age was 16 to 94 years with average of 66. There were more females-107 (60.5%). There was 74.2% of strangulation ileus and 25.2% of obturation ileus. The incarcerated hernia was the main cause of strangulation ileus (59%) and carcinoma of obturation ileus (93%). Within the large bowel carcinoma was the cause of ileus in all patients. Postoperatively 33 patients (18.6%) died. Mortality among the patients with strangulation ileus was 13.6% and with obturation ileus was 33.3%.
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Affiliation(s)
- S Cichoń
- III Katedry i Kliniki Chirurgii Ogólnej, Collegium Medicum, Uniwersytetu Jagiellońskiego w Krakowie
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Brzeziński M, Jęldrzejewski W, Jędrzejewska B. Diet of otters(Lutra lutra)inhabiting small rivers in the Bialowiez̀a National Park, eastern Poland. J Zool (1987) 1993. [DOI: 10.1111/j.1469-7998.1993.tb02701.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tkaczewski W, Chojnacki J, Klupińska G, Grzegorczyk K, Brzeziński M, Kedziora-Kornatowska K, Wichan P. [Effect of cimetidine on the heart conduction system]. Pol Tyg Lek 1991; 46:609-10. [PMID: 1669124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An effect of cimetidine on ECG records has been investigated in a group of 40 patients with gastric or duodenal ulcers and coexisting circulatory disorders. For this purpose ECG has been recorded with Holter's technique (Medilog 2000) together with ECG-recording using high amplifying technique. An intravenous injection of 200 mg of cimetidine produced in some of patients inhibition of the sinus rhythm atrio-ventricular conduction disturbances as well as changes in the end phase of ECG ventricular image. The authors suggest, that intravenous administration of cimetidine to patients with cardiac diseases should be monitored with ECG recording.
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