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Varga A, Makszin L, Bufa A, Sipos D, Kása P, Pál S, Rosenstiel P, Sommer F, Kocsis B, Péterfi Z. Efficacy of lyophilised bacteria-rich faecal sediment and supernatant with reduced bacterial count for treating patients with Clostridioides difficile Infection - A novel method for capsule faecal microbiota transfer. Front Cell Infect Microbiol 2023; 13:1041384. [PMID: 36756616 PMCID: PMC9899802 DOI: 10.3389/fcimb.2023.1041384] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023] Open
Abstract
Background and aims Faecal microbiota transfer (FMT) has managed to earn its place in the Clostridioides difficile infection (CDI) guidelines by having comparable efficacy and recurrence rate of fidaxomicin. After more than 100 successful FMT administration through nasogastric tube, we started using hard gelatine capsules filled with lyophilised faecal sediment and supernatant. Our main question was whether uncoated capsules (containing faecal sediment or supernatant) are comparable to the widely used nasogastric tubes in CDI. We also investigated the effect of storage and time on the survival rate of bacteria in the samples. Methods We compared the efficacy of our capsules to other treatment options of CDI at the Department of Infectology at the University of Pécs (Hungary). For our study, stool was collected from a single donor. We treated 10 patients with relapsing CDI, 5 of them received supernatant, 5 received sediment. Donor samples were stored on 4 different temperatures and tested to determine the survival rates of bacteria. As pilot projects, we also assessed the changes of bacterial taxa, protein- and lipid compositions. Moreover, we selected 4 patients to compare their samples prior and after FMT by using microbiome (16S amplicon sequencing), protein, and lipid analyses. Results 4 out of the 5 patients who received supernatant became symptomless within 2 days after FMT. In the sediment group 3 out of 5 patients were cured from CDI. Comparing the supernatant to the sediment, we found significantly lower number of colony-forming units in the supernatant. We found that -80°C is the most suitable temperature to store the samples. The stool lipid profiles of recipients showed a more diverse composition after FMT, and changes in the stool protein profiles were observed as well. In the microbiome analysis, we observed an increase in the alpha diversity after FMT. Conclusions Our study of 10 patients showed good efficacy of lyophilised faecal supernatant using capsules. The single donor approach proved to be effective in our investigation. A significantly lower CFU number was sufficient for the effect, the separation can be achieved by widely available instruments. For storage temperature, -20°C was sufficient in our clinical practice.
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Affiliation(s)
- Adorján Varga
- 1stDepartment of Internal Medicine - Department of Infectology, University of Pécs, Medical School, Pécs, Hungary.,Department of Medical Microbiology and Immunology, University of Pécs, Medical School, Pécs, Hungary
| | - Lilla Makszin
- Institute of Bioanalysis, Medical School, and Szentágothai Research Center, University of Pécs, Pécs, Hungary
| | - Anita Bufa
- Institute of Bioanalysis, Medical School, and Szentágothai Research Center, University of Pécs, Pécs, Hungary
| | - Dávid Sipos
- 1stDepartment of Internal Medicine - Department of Infectology, University of Pécs, Medical School, Pécs, Hungary
| | - Péter Kása
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Faculty of Pharmacy, Pécs, Hungary
| | - Szilárd Pál
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Faculty of Pharmacy, Pécs, Hungary
| | - Philip Rosenstiel
- Institute of Clinical Molecular Biology, Christian Albrechts University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Felix Sommer
- Institute of Clinical Molecular Biology, Christian Albrechts University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, University of Pécs, Medical School, Pécs, Hungary
| | - Zoltán Péterfi
- 1stDepartment of Internal Medicine - Department of Infectology, University of Pécs, Medical School, Pécs, Hungary
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Vörös-Horváth B, Živković P, Bánfai K, Bóvári-Biri J, Pongrácz J, Bálint G, Pál S, Széchenyi A. Preparation and Characterization of ACE2 Receptor Inhibitor-Loaded Chitosan Hydrogels for Nasal Formulation to Reduce the Risk of COVID-19 Viral Infection. ACS Omega 2022; 7:3240-3253. [PMID: 35097308 PMCID: PMC8790824 DOI: 10.1021/acsomega.1c05149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
The COVID-19 virus is spread by pulmonary droplets. Its high infectivity is caused by the high-affinity binding of the viral spike protein to the ACE2 receptors on the surface of respiratory epithelial cell membranes. The proper hydration of nasal mucosa plays an essential role in defense of bacterial and viral infections. Therefore, a nasal formulation, which can moisture the nasal mucosa and contains the ACE2 receptor inhibitor, can reduce the risk of COVID-19 infection. This article presents a systematic study of the preparation of chitosan hydrogels with dicarboxylic acids (malic and glutaric acid) and their detailed characterization (Fourier transform infrared spectroscopy, determination of cross-linking efficiency, rheological studies, thermal analysis, and swelling kinetics). The results confirm that chemically cross-linked chitosan hydrogels can be synthesized using malic or glutaric acid without additives or catalysts. The adsorption capacity of hydrogels for three different ACE2 inhibitors, as APIs, has also been investigated. The API content of hydrogels and their mucoadhesive property can provide an excellent basis to use the hydrogels for the development of a nasal formulation in order to reduce the risk of SARS-CoV 2 infection.
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Affiliation(s)
- Barbara Vörös-Horváth
- Institute
of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pecs, Rókus u. 2, 7624 Pécs, Hungary
| | - Pavo Živković
- Department
of Chemistry, Josip Juraj Strossmayer University
of Osijek, Ulica Cara
Hadrijana 8/A, HR-31000 Osijek, Croatia
| | - Krisztina Bánfai
- Department
of Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Pecs, Rókus u. 2, 7624 Pécs, Hungary
| | - Judit Bóvári-Biri
- Department
of Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Pecs, Rókus u. 2, 7624 Pécs, Hungary
| | - Judit Pongrácz
- Department
of Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Pecs, Rókus u. 2, 7624 Pécs, Hungary
| | - Gábor Bálint
- Institute
of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pecs, Rókus u. 2, 7624 Pécs, Hungary
| | - Szilárd Pál
- Institute
of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pecs, Rókus u. 2, 7624 Pécs, Hungary
| | - Aleksandar Széchenyi
- Institute
of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pecs, Rókus u. 2, 7624 Pécs, Hungary
- Department
of Chemistry, Josip Juraj Strossmayer University
of Osijek, Ulica Cara
Hadrijana 8/A, HR-31000 Osijek, Croatia
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Bakó C, Balázs VL, Takács G, Pallos JP, Pál S, Kocsis B, Pethő DR, Horváth G. Combination of Analytical and Statistical Methods in Order to Optimize Antibacterial Activity of Clary Sage Supercritical Fluid Extracts. Molecules 2021; 26:6449. [PMID: 34770858 PMCID: PMC8586929 DOI: 10.3390/molecules26216449] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/07/2022] Open
Abstract
The extraction of clary sage (Salvia sclarea L.) using supercritical carbon dioxide (SC-CO2) was systematically studied by using thin layer chromatography-direct bioautography (TLC-DB) and response surface methodology (RSM). The three parameters temperature, pressure, and cosolvent ratio were optimized for the maximum antibacterial activity of clary sage extracts against Pseudomonas aeruginosa (P. aeruginosa) and methicillin-resistant Staphylococcus aureus (MRSA). The highest inhibition zone was 7.51 mm for P. aeruginosa and 7.57 mm for MRSA. According to RSM analysis, the predicted optimum extraction parameters are 18.6 MPa pressure, 40 °C temperature, and 2% ethanol (EtOH) ratio. The combination of this analytical and statistical method allows saving time, money, and instrument runtime in the optimization of essential oil composition, which is tailored to a specific task and could be useful on any kind of herbs in a wide range of use from perfume manufacturing to the food industry.
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Affiliation(s)
- Csongor Bakó
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (C.B.); (V.L.B.)
| | - Viktória Lilla Balázs
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (C.B.); (V.L.B.)
| | - Gyöngyi Takács
- Institute of Chemical Engineering and Process Engineering, Faculty of Engineering, University of Pannonia, H-8200 Veszprém, Hungary; (G.T.); (D.R.P.)
| | | | - Szilárd Pál
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary;
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, H-7624 Pécs, Hungary;
| | - Dóra Rippelné Pethő
- Institute of Chemical Engineering and Process Engineering, Faculty of Engineering, University of Pannonia, H-8200 Veszprém, Hungary; (G.T.); (D.R.P.)
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (C.B.); (V.L.B.)
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Horváth ÁI, Szentes N, Tékus V, Payrits M, Szőke É, Oláh E, Garami A, Fliszár-Nyúl E, Poór M, Sár C, Kálai T, Pál S, Percze K, Scholz ÉN, Mészáros T, Tóth B, Mátyus P, Helyes Z. Proof-of-Concept for the Analgesic Effect and Thermoregulatory Safety of Orally Administered Multi-Target Compound SZV 1287 in Mice: A Novel Drug Candidate for Neuropathic Pain. Biomedicines 2021; 9:biomedicines9070749. [PMID: 34209525 PMCID: PMC8301340 DOI: 10.3390/biomedicines9070749] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 11/24/2022] Open
Abstract
SZV 1287 (3-(4,5-diphenyl-1,3-oxazol-2-yl)propanal oxime) is a novel multi-target candidate under preclinical development for neuropathic pain. It inhibits amine oxidase copper containing 3, transient receptor potential ankyrin 1 and vanilloid 1 (TRPV1) receptors. Mainly under acidic conditions, it is transformed to the cyclooxygenase inhibitor oxaprozin, which is ineffective for neuropathy. Therefore, an enterosolvent capsule is suggested for oral formulation, which we investigated for nociception, basic kinetics, and thermoregulatory safety in mice. The antihyperalgesic effect of SZV 1287 (10, 20, 50, and 200 mg/kg, p.o.) was determined in partial sciatic nerve ligation-induced traumatic neuropathy by aesthesiometry, brain and plasma concentrations by HPLC, and deep body temperature by thermometry. Its effect on proton-induced TRPV1 activation involved in thermoregulation was assessed by microfluorimetry in cultured trigeminal neurons. The three higher SZV 1287 doses significantly, but not dose-dependently, reduced neuropathic hyperalgesia by 50% of its maximal effect. It was quickly absorbed; plasma concentration was stable for 2 h, and it entered into the brain. Although SZV 1287 significantly decreased the proton-induced TRPV1-mediated calcium-influx potentially leading to hyperthermia, it did not alter deep body temperature. Oral SZV 1287 inhibited neuropathic hyperalgesia and, despite TRPV1 antagonistic action and brain penetration, it did not influence thermoregulation, which makes it a promising analgesic candidate.
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Affiliation(s)
- Ádám István Horváth
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, H-7624 Pécs, Hungary; (Á.I.H.); (N.S.); (V.T.); (M.P.); (É.S.)
- Molecular Pharmacology Research Group & Centre for Neuroscience, János Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Nikolett Szentes
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, H-7624 Pécs, Hungary; (Á.I.H.); (N.S.); (V.T.); (M.P.); (É.S.)
- Molecular Pharmacology Research Group & Centre for Neuroscience, János Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Valéria Tékus
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, H-7624 Pécs, Hungary; (Á.I.H.); (N.S.); (V.T.); (M.P.); (É.S.)
- Molecular Pharmacology Research Group & Centre for Neuroscience, János Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Maja Payrits
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, H-7624 Pécs, Hungary; (Á.I.H.); (N.S.); (V.T.); (M.P.); (É.S.)
- Molecular Pharmacology Research Group & Centre for Neuroscience, János Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Éva Szőke
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, H-7624 Pécs, Hungary; (Á.I.H.); (N.S.); (V.T.); (M.P.); (É.S.)
- Molecular Pharmacology Research Group & Centre for Neuroscience, János Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- ALGONIST Biotechnologies GmBH, 1030 Vienna, Austria
| | - Emőke Oláh
- Department of Thermophysiology, Institute for Translational Medicine, Medical School, University of Pécs, H-7624 Pécs, Hungary; (E.O.); (A.G.)
| | - András Garami
- Department of Thermophysiology, Institute for Translational Medicine, Medical School, University of Pécs, H-7624 Pécs, Hungary; (E.O.); (A.G.)
| | - Eszter Fliszár-Nyúl
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (E.F.-N.); (M.P.)
| | - Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (E.F.-N.); (M.P.)
| | - Cecília Sár
- Institute of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (C.S.); (T.K.)
| | - Tamás Kálai
- Institute of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (C.S.); (T.K.)
| | - Szilárd Pál
- Institute of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary;
| | - Krisztina Percze
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Faculty of Medicine, Semmelweis University, H-1094 Budapest, Hungary; (K.P.); (É.N.S.); (T.M.)
| | - Éva Nagyné Scholz
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Faculty of Medicine, Semmelweis University, H-1094 Budapest, Hungary; (K.P.); (É.N.S.); (T.M.)
| | - Tamás Mészáros
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Faculty of Medicine, Semmelweis University, H-1094 Budapest, Hungary; (K.P.); (É.N.S.); (T.M.)
| | - Blanka Tóth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Hungary;
| | - Péter Mátyus
- Institute of Digital Health Sciences, Faculty of Health and Public Services, Semmelweis University, H-1094 Budapest, Hungary;
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, H-7624 Pécs, Hungary; (Á.I.H.); (N.S.); (V.T.); (M.P.); (É.S.)
- Molecular Pharmacology Research Group & Centre for Neuroscience, János Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- ALGONIST Biotechnologies GmBH, 1030 Vienna, Austria
- PharmInVivo Ltd., H-7629 Pécs, Hungary
- Correspondence:
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Varga A, Kocsis B, Sipos D, Kása P, Vigvári S, Pál S, Dembrovszky F, Farkas K, Péterfi Z. How to Apply FMT More Effectively, Conveniently and Flexible - A Comparison of FMT Methods. Front Cell Infect Microbiol 2021; 11:657320. [PMID: 34150673 PMCID: PMC8213398 DOI: 10.3389/fcimb.2021.657320] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/18/2021] [Indexed: 01/02/2023] Open
Abstract
Purpose Metronidazol and vancomycin were long the two best options against Clostridioides (formerly Clostridium) difficile infections (CDI). Now, the cost of new drugs such as fidaxomicin directs us towards alternative treatment options, such as faecal microbiota transplant (FMT). Its effectiveness is similar to fidaxomicin. There are questions regarding its safety, but the biggest challenges are prejudice and inconvenience. Most protocols refer to FMT applied in the form of a solution. We investigated different modalities of FMT. Methods Instead of using nasoenteric tubes or colonoscopy, we place frozen or lyophilised stool in non-coated, size “00”, hard gelatine capsules or enterosolvent, size “0” capsules. Results We found that non-coated, size “00”, hard gelatine capsules are appropriate for conducting FMT. Capsules containing lyophilised supernatant with a low number of bacteria have been proven to be non-inferior to other FMT modalities. The primary cure rate in the supernatant group was 93.75%, and 66.67% in the sediment group. The overall cure rate was 82.14%. Depending on the protocol, 4–7 capsules are sufficient per patient. Capsules can be stored for up to one year at -20°C. Conclusions FMT is a feasible alternative to antibiotic treatments in CDI. Our method makes the process flexible and less inconvenient to patients. Long storage time allows a consistent supply of capsules, while small volume and formulation make the procedure tolerable.
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Affiliation(s)
- Adorján Varga
- Department of Medical Microbiology and Immunology, University of Pécs Clinical Centre, Pécs, Hungary
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, University of Pécs Clinical Centre, Pécs, Hungary
| | - Dávid Sipos
- 1stDepartment of Internal Medicine - Department of Infectology, University of Pécs Clinical Centre, Pécs, Hungary
| | - Péter Kása
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs Faculty of Pharmacy, Pécs, Hungary
| | - Szabolcs Vigvári
- 1stDepartment of Internal Medicine - Department of Infectology, University of Pécs Clinical Centre, Pécs, Hungary
| | - Szilárd Pál
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs Faculty of Pharmacy, Pécs, Hungary
| | - Fanni Dembrovszky
- Institute for Translational Medicine, University of Pécs Medical School, Pécs, Hungary
| | - Kornélia Farkas
- Institute of Bioanalysis, University of Pécs Medical School, Pécs, Hungary
| | - Zoltán Péterfi
- 1stDepartment of Internal Medicine - Department of Infectology, University of Pécs Clinical Centre, Pécs, Hungary
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Salem A, Hagymási A, Vörös-Horváth B, Šafarik T, Balić T, Szabó P, Gősi F, Nagy S, Pál S, Kunsági-Máté S, Széchenyi A. Solvent dependent 4-aminosalicylic acid-sulfamethazine co-crystal polymorph control. Eur J Pharm Sci 2020; 156:105599. [PMID: 33075464 DOI: 10.1016/j.ejps.2020.105599] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 05/31/2020] [Revised: 07/23/2020] [Accepted: 08/20/2020] [Indexed: 11/24/2022]
Abstract
Despite polymorphism of crystalline active pharmaceutical ingredients (APIs) being a common phenomenon, reports on polymorphic co-crystals are limited. As polymorphism can vastly affect API properties, controlling polymorph generation is crucial. Control of the polymorph nucleation through the use of different solvents during solution crystallization has been used to obtain a desirable crystal polymorph. There have been two reported polymorphic forms of the 4-aminosalicylic acid-sulfamethazine co-crystals. These forms were found to have different thermodynamic stabilities. However, the control of co-crystal polymorph generation using preparation parameter manipulation has never been reported. The aim of this study was to establish the effect of different solvent parameters on the formation of different co-crystal polymorphic forms. Selection of the solvents was based on Hansen Solubility Parameters (HSPs) as solvents with different solubility parameters are likely to interact differently with APIs, ultimately affecting co-crystallization. Eight solvents with different HSPs were used to prepare co-crystals by solvent evaporation at two different temperatures. Through characterization of the co-crystals, a new polymorph has been obtained. The hydrogen bond acceptability seemed to affect the co-crystal form obtained more than the hydrogen bond donation ability. Furthermore, the use of HSPs can be utilized as an easy calculation method in screening and design of co-crystals.
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Affiliation(s)
- Ala' Salem
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Pécs, Hungary
| | - Alexandra Hagymási
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Pécs, Hungary
| | - Barbara Vörös-Horváth
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Pécs, Hungary
| | - Tatjana Šafarik
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Tomislav Balić
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Péter Szabó
- Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Fruzsina Gősi
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Pécs, Hungary
| | - Sándor Nagy
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Pécs, Hungary
| | - Szilárd Pál
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Pécs, Hungary
| | - Sándor Kunsági-Máté
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Pécs, Hungary
| | - Aleksandar Széchenyi
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Pécs, Hungary; Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia.
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Salem A, Nagy S, Pál S, Széchenyi A. Reliability of the Hansen solubility parameters as co-crystal formation prediction tool. Int J Pharm 2019; 558:319-327. [DOI: 10.1016/j.ijpharm.2019.01.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/15/2018] [Accepted: 01/03/2019] [Indexed: 11/30/2022]
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Diós P, Szigeti K, Budán F, Pócsik M, Veres DS, Máthé D, Pál S, Dévay A, Nagy S. Influence of barium sulfate X-ray imaging contrast material on properties of floating drug delivery tablets. Eur J Pharm Sci 2016; 95:46-53. [PMID: 27687639 DOI: 10.1016/j.ejps.2016.09.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 02/13/2016] [Revised: 09/16/2016] [Accepted: 09/25/2016] [Indexed: 11/27/2022]
Abstract
The objective of the study was to reveal the influence of necessarily added barium sulfate (BaSO4) X-ray contrast material on floating drug delivery tablets. Based on literature survey, a chosen floating tablet composition was determined containing HPMC and carbopol 943P as matrix polymers. One-factor factorial design with five levels was created for evaluation of BaSO4 (X1) effects on experimental parameters of tablets including: floating lag time, total floating time, swelling-, erosion-, dissolution-, release kinetics parameters and X-ray detected volume changes of tablets. Applied concentrations of BaSO4 were between 0 and 20.0% resulting in remarkable alteration of experimental parameters related especially to flotation. Drastic deterioration of floating lag time and total floating time could be observed above 15.0% BaSO4. Furthermore, BaSO4 showed to increase the integrity of tablet matrix by reducing eroding properties. A novel evaluation of dissolutions from floating drug delivery systems was introduced, which could assess the quantity of drug dissolved from dosage form in floating state. In the cases of tablets containing 20.0% BaSO4, only the 40% of total API amount could be dissolved in floating state. In vitro fine resolution X-ray CT imagings were performed to study the volume change and the voxel distributions as a function of HU attenuations by histogram analysis of the images. X-ray detected relative volume change results did not show significant difference between samples. After 24h, all tablets containing BaSO4 could be segmented, which highlighted the fact that enough BaSO4 remained in the tablets for their identification.
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Affiliation(s)
- Péter Diós
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary.
| | - Krisztián Szigeti
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó utca 37-47, H-1094 Budapest, Hungary
| | - Ferenc Budán
- CROmed Translational Research Centers, Baross str. 91-95, H-1047 Budapest, Hungary; Department of Public Health Medicine, University of Pécs, Szigeti str. 12, H-7624 Pécs, Hungary
| | - Márta Pócsik
- CROmed Translational Research Centers, Baross str. 91-95, H-1047 Budapest, Hungary
| | - Dániel S Veres
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó utca 37-47, H-1094 Budapest, Hungary
| | - Domokos Máthé
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó utca 37-47, H-1094 Budapest, Hungary; CROmed Translational Research Centers, Baross str. 91-95, H-1047 Budapest, Hungary
| | - Szilárd Pál
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary
| | - Attila Dévay
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary
| | - Sándor Nagy
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary
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Diós P, Nagy S, Pál S, Pernecker T, Kocsis B, Budán F, Horváth I, Szigeti K, Bölcskei K, Máthé D, Dévay A. Preformulation studies and optimization of sodium alginate based floating drug delivery system for eradication of Helicobacter pylori. Eur J Pharm Biopharm 2015; 96:196-206. [DOI: 10.1016/j.ejpb.2015.07.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 05/21/2015] [Accepted: 07/21/2015] [Indexed: 10/23/2022]
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10
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Horváth G, Kemény Á, Barthó L, Molnár P, Deli J, Szente L, Bozó T, Pál S, Sándor K, Szőke É, Szolcsányi J, Helyes Z. Effects of some natural carotenoids on TRPA1- and TRPV1-induced neurogenic inflammatory processes in vivo in the mouse skin. J Mol Neurosci 2015; 56:113-21. [PMID: 25645682 DOI: 10.1007/s12031-014-0472-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 11/18/2014] [Indexed: 01/25/2023]
Abstract
Mechanisms of the potent anti-inflammatory actions of carotenoids are unknown. Since carotenoids are incorporated into membranes, they might modulate transient receptor potential ankyrin 1 and vanilloid 1 (TRPA1 and TRPV1) activation predominantly on peptidergic sensory nerves. We therefore investigated the effects of three carotenoids (β-carotene, lutein and lycopene) on cutaneous neurogenic inflammation. Acute neurogenic edema and inflammatory cell recruitment were induced by smearing the TRPA1 agonist mustard oil (5%) or the TRPV1 activator capsaicin (2.5%) on the mouse ear. Ear thickness was then determined by micrometry, microcirculation by laser Doppler imaging and neutrophil accumulation by histopathology and spectrophotometric determination of myeloperoxidase activity. The effects of lutein on the stimulatory action of the TRPA1 agonist mustard oil were also tested on the guinea-pig small intestine, in isolated organ experiments. Mustard oil evoked 50-55% ear edema and granulocyte influx, as shown by histology and myeloperoxidase activity. Swelling was significantly reduced between 2 and 4 h after administration of lutein or β-carotene (100 mg/kg subcutane three times during 24 h). Lutein also decreased neutrophil accumulation induced by TRPA1 activation, but did not affect mustard oil-evoked intestinal contraction. Lycopene had no effect on any of these parameters. None of the three carotenoids altered capsaicin-evoked inflammation. It is proposed that the dihydroxycarotenoid lutein selectively inhibits TRPA1 activation and consequent neurogenic inflammation, possibly by modulating lipid rafts.
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Affiliation(s)
- Györgyi Horváth
- Department of Pharmacognosy, Medical School, University of Pécs, Rókus utca 2., Pécs, 7624, Hungary,
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11
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Diós P, Pernecker T, Nagy S, Pál S, Dévay A. Influence of different types of low substituted hydroxypropyl cellulose on tableting, disintegration, and floating behaviour of floating drug delivery systems. Saudi Pharm J 2014; 23:658-66. [PMID: 26702261 PMCID: PMC4669424 DOI: 10.1016/j.jsps.2014.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 09/28/2014] [Indexed: 11/19/2022] Open
Abstract
The object of the present study is to evaluate the effect of application of low-substituted hydroxypropyl cellulose (L-HPC) 11 and B1 as excipients promoting floating in gastroretentive tablets. Directly compressed tablets were formed based on experimental design. Face-centred central composite design was applied with two factors and 3 levels, where amount of sodium alginate (X1) and L-HPC (X2) were the numerical factors. Applied types of L-HPCs and their 1:1 mixture were included in a categorical factor (X3). Studied parameters were floating lag time, floating time, floating force, swelling behaviour of tablets and dissolution of paracetamol, which was used as a model active substance. Due to their physical character, L-HPCs had different water uptake and flowability. Lower flowability and lower water uptake was observed after 60 min at L-HPC 11 compared to L-HPC B1. Shorter floating times were detected at L-HPC 11 and L-HPC mixtures with 0.5% content of sodium alginate, whereas alginate was the only significant factor. Evaluating results of drug release and swelling studies on floating tablets revealed correlation, which can serve to help to understand the mechanism of action of L-HPCs in the field development of gastroretentive dosage forms.
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Affiliation(s)
- Péter Diós
- Corresponding author. Tel.: +36 70 5456868; fax: +36 72 503 617.
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12
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Pál S, Nagy S, Bozó T, Kocsis B, Dévay A. Technological and biopharmaceutical optimization of nystatin release from a multiparticulate based bioadhesive drug delivery system. Eur J Pharm Sci 2013; 49:258-64. [DOI: 10.1016/j.ejps.2013.03.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 02/10/2013] [Accepted: 03/08/2013] [Indexed: 10/27/2022]
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13
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Horváth G, Szoke É, Kemény Á, Bagoly T, Deli J, Szente L, Pál S, Sándor K, Szolcsányi J, Helyes Z. Lutein inhibits the function of the transient receptor potential A1 ion channel in different in vitro and in vivo models. J Mol Neurosci 2011; 46:1-9. [PMID: 21541689 DOI: 10.1007/s12031-011-9525-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Accepted: 04/19/2011] [Indexed: 12/19/2022]
Abstract
Transient receptor potential (TRP) ion channels, such as TRP vanilloid 1 and ankyrin repeat domain 1 (TRPV1 and TRPA1), are expressed on primary sensory neurons. Lutein, a natural tetraterpene carotenoid, can be incorporated into membranes and might modulate TRP channels. Therefore, the effects of the water-soluble randomly methylated-β-cyclodextrin (RAMEB) complex of lutein were investigated on TRPV1 and TRPA1 activation. RAMEB-lutein (100 μM) significantly diminished Ca(2+) influx to cultured rat trigeminal neurons induced by TRPA1 activation with mustard oil, but not by TRPV1 stimulation with capsaicin, as determined with microfluorimetry. Calcitonin gene-related peptide release from afferents of isolated tracheae evoked by mustard oil, but not by capsaicin, was inhibited by RAMEB-lutein. Mustard oil-induced neurogenic mouse ear swelling was also significantly decreased by 100 μg/ml s.c. RAMEB-lutein pretreatment, while capsaicin-evoked edema was not altered. Myeloperoxidase activity indicating non-neurogenic granulocyte accumulation in the ear was not influenced by RAMEB-lutein in either case. It is concluded that lutein inhibits TRPA1, but not TRPV1 stimulation-induced responses on cell bodies and peripheral terminals of sensory neurons in vitro and in vivo. Based on these distinct actions and the carotenoid structure, the ability of lutein to modulate lipid rafts in the membrane around TRP channels can be suggested.
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Affiliation(s)
- Györgyi Horváth
- Department of Pharmacognosy, Medical School, University of Pécs, Rókus utca 2, Pécs, 7624, Hungary
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14
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Bozó T, Pál S, Dévay A. [Novel possibilities of development and therapeutical application of liposomes]. Acta Pharm Hung 2008; 78:103-109. [PMID: 18986087] [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: 05/27/2023]
Abstract
Properties and possibilities of application of liposomal drug delivery systems are summarized in this review. Technological and biopharmeceutical criteria that have to be taken into consideration in the course of development of biocompatible liposomes are discussed. The manner and possibilities of active and passive targeting are shown according to the literary data and special liposome-based drug delivery systems responsible for pathologic or arteficial stimuli are introduced.
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Affiliation(s)
- Tamás Bozó
- Pécsi Tudományegyetem Altalános Orvostudományi Kar, Gyógyszerésztudományi Szak, Gyógyszertechnológiai és Biofarmáciai Intézet, Pécs, Rókus utca 2.-7624
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15
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Dévay A, Mayer K, Pál S, Antal I. Investigation on drug dissolution and particle characteristics of pellets related to manufacturing process variables of high-shear granulation. ACTA ACUST UNITED AC 2006; 69:197-205. [PMID: 16650480 DOI: 10.1016/j.jbbm.2006.03.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2005] [Revised: 02/21/2006] [Accepted: 03/14/2006] [Indexed: 11/22/2022]
Abstract
There is a growing interest for multiparticulate solid dosage forms such as pellets, because of their several advantages over tablets during drug therapy. It is essential to investigate the drug dissolution process which can be influenced by the composition and manufacturing process technology, too. This study was performed applying experimental design in order to evaluate the effects of independent process variables during high-shear pelletisation, taking the impeller speed (x1) and granulation binder flow rate (x2) as factors into consideration. Theophylline containing pellet formulation was prepared using a matrix consisted of ethylcellulose, microcrystalline cellulose and lactose. Dissolution profiles were modeled by the Weibull function to evaluate the power of process variables. Both process variables were powerful to influence the particle agglomeration. A linear regression was found between the particle size and the diffuse reflectance values after the Kubelka-Munk transformation. Differences in the diffuse reflectance spectra of pellet samples related to particle size offer a fast instrumental method for the in-process control.
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Affiliation(s)
- Attila Dévay
- University of Pecs, Institute of Pharmaceutical Technology, H-7624 Pecs, Rókus Str. 2, Hungary.
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16
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Pál S, Mayer K, Dévay A. [Particle size determination using the method of dynamic light scattering]. Acta Pharm Hung 2005; 75:23-9. [PMID: 16045201] [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: 05/03/2023]
Abstract
Realising the lacks of the classic methods of particle size determination a new method was needed to be developed which became suitable for measurements in the nano range as well. The principle of this method was discovered more than 20 years ago but manufacturers are still able to insert novelties by developing and refining the technique of - dynamic light scattering. Importance of multiparticular systems increases in pharmaceutical technology. It is necessary to apply this new method to investigate them.
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Affiliation(s)
- Szilárd Pál
- Pécsi Tudományegyetem, Gyógyszertechnológiai Intézet, Pécs, Rókus
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Pál S. [Dilemmas of the pharmacist, 7th edition of Hungarian National Formulary in practice]. Acta Pharm Hung 2005; 75:199-203. [PMID: 16711397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Most important event of year 2004 of the history of Hungarian pharmacy was the release of the 7th edition of the National Formulary. The general part of the new formulary expanded, remarks on the preparations are more detailed and dispensing technologies are more elaborated. Knowledge base on pharmaceutical substances and incompatibility is inserted as novelty. Following the principles of modern pharmacy practice the new National Formulary excludes pills, though it is still accepted as an alternative dosage form. Usage of tablets, hard gelatine capsules and medication stick as a new dosage forms are introduced. The aim of my study was to prepare and examine some new compositions of the new edition of the National Formulary to help the pharmacist's work. Results confirmed the novel solutions of the new National Formulary.
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Mihály S, Pál S, György F. [The effect of LH-releasing hormone in pregnancy]. Orv Hetil 1977; 118:1275-6. [PMID: 325464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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István S, Arpád S, Pál S. [Determination of death in the case of organ removal for transplantation]. Orv Hetil 1977; 118:1271-4. [PMID: 865811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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20
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Pál S, Gyula M, Endréné L. [Pulmonary hemodynamic reactions to thoracic trauma]. Orv Hetil 1976; 117:2541-3. [PMID: 980474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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