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Pandey DP, Shrestha BR, Acharya KP, Shah KJ, Thapa-Magar C, Dhakal IP, Mohamed F, Isbister GK. A prospective study of snakebite in a tertiary care hospital in south-western Nepal. Trans R Soc Trop Med Hyg 2023:6972592. [PMID: 36611273 DOI: 10.1093/trstmh/trac127] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Snakebite is a neglected public health issue in Nepal. We aimed to characterize patients with snake envenoming admitted to hospital in south-western Nepal. METHODS This was a prospective cohort study of 476 snakebite patients admitted to Bheri Hospital from May to December 2017. Data were collected on patient demographics, bite circumstances, snake type, treatment-seeking behavior, clinical effects, complications and treatment. RESULTS There were 139/476 (29%) patients with clinical features of envenomation and 10 deaths (8%), of which six were prehospital deaths; 325/476 (68%) patients used non-recommended prehospital first aid, including 278 (58%) who applied a tourniquet and 43 (9%) consulting traditional healers. Median time to hospital arrival was 1.5 (IQR: 0.8-4) h. Also, 127 envenomated patients (91%) developed neurotoxicity and 12 (9%) hemotoxicity, while 124 patients (89%) received antivenom, with a median dose of 10 (4-30) vials. Three patients developed anaphylaxis following antivenom administration; 111 of 139 (80%) cases were admitted to the ICU and 48 (35%) were intubated. Median length of hospital stay for all cases was 0.5 (IQR: 0.5-1.2) d, but it was 2.2 (IQR: 1.5-3.8) d for envenomated cases. CONCLUSIONS The majority of snakebite patients used non-recommended first aid or attended traditional healers. Almost one-third of patients developed systemic envenomation and required antivenom. The case fatality rate was high, but many died prior to arriving in hospital.
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Affiliation(s)
- Deb Prasad Pandey
- South Asian Clinical Toxicology Research Collaboration, Faculty of Medicine, University of Peradeniya, Peradeniya, 20400, Sri Lanka.,Clinical Toxicology Research Group, University of Newcastle, Newcastle, New South Wales, 2308, Australia.,Department of Veterinary Microbiology and Parasitology, Agriculture and Forestry University, Rampur, Chitwan, Bagmati, 44200, Nepal
| | | | | | | | | | - Ishwari Prasad Dhakal
- Department of Veterinary Microbiology and Parasitology, Agriculture and Forestry University, Rampur, Chitwan, Bagmati, 44200, Nepal
| | - Fahim Mohamed
- South Asian Clinical Toxicology Research Collaboration, Faculty of Medicine, University of Peradeniya, Peradeniya, 20400, Sri Lanka
| | - Geoffrey K Isbister
- South Asian Clinical Toxicology Research Collaboration, Faculty of Medicine, University of Peradeniya, Peradeniya, 20400, Sri Lanka.,Clinical Toxicology Research Group, University of Newcastle, Newcastle, New South Wales, 2308, Australia
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2
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Morozova JE, Gilmullina ZR, Voloshina AD, Lyubina AP, Amerhanova SK, Syakaev VV, Babaeva OB, Ziganshina AY, Mukhametzyanov TA, Samorodov AV, Galagudza MM, Antipin IS. Calix[4]Resorcinarene Carboxybetaines and Carboxybetaine Esters: Synthesis, Investigation of In Vitro Toxicity, Anti-Platelet Effects, Anticoagulant Activity, and BSA Binding Affinities. Int J Mol Sci 2022; 23. [PMID: 36499625 DOI: 10.3390/ijms232315298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 12/11/2022] Open
Abstract
As a result of bright complexation properties, easy functionalization and the ability to self-organize in an aqueous solution, amphiphilic supramolecular macrocycles are being actively studied for their application in nanomedicine (drug delivery systems, therapeutic and theranostic agents, and others). In this regard, it is important to study their potential toxic effects. Here, the synthesis of amphiphilic calix[4]resorcinarene carboxybetaines and their esters and the study of a number of their microbiological properties are presented: cytotoxic effect on normal and tumor cells and effect on cellular and non-cellular components of blood (hemotoxicity, anti-platelet effect, and anticoagulant activity). Additionally, the interaction of macrocycles with bovine serum albumin as a model plasma protein is estimated by various methods (fluorescence spectroscopy, synchronous fluorescence spectroscopy, circular dichroic spectroscopy, and dynamic light scattering). The results demonstrate the low toxicity of the macrocycles, their anti-platelet effects at the level of acetylsalicylic acid, and weak anticoagulant activity. The study of BSA-macrocycle interactions demonstrates the dependence on macrocycle hydrophilic/hydrophobic group structure; in the case of carboxybetaines, the formation of complexes prevents self-aggregation of BSA molecules in solution. The present study demonstrates new data on potential drug delivery nanosystems based on amphiphilic calix[4]resorcinarenes for their cytotoxicity and effects on blood components.
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3
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Speck-Planche A, Kleandrova VV. The latest guidance on the simultaneous design of virtually active and non-hemolytic peptides. Expert Opin Drug Discov 2022; 17:1067-1069. [PMID: 36148498 DOI: 10.1080/17460441.2022.2128756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Alejandro Speck-Planche
- Grupo de Química Computacional y Teórica (QCT-USFQ), Departamento de Ingeniería Química, Universidad San Francisco de Quito, Diego de Robles y vía Interoceánica, Quito, Ecuador
| | - Valeria V Kleandrova
- Laboratory of Fundamental and Applied Research of Quality and Technology of Food Production, Moscow State University of Food Production, Moscow, Russian Federation
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4
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Sayed AEDH, Eid Z, Mahmoud UM, Lee JS, Mekkawy IAA. Reproductive Toxicity and Recovery Associated With 4-Non-ylphenol Exposure in Juvenile African Catfish ( Clarias garepinus). Front Physiol 2022; 13:851031. [PMID: 35480038 PMCID: PMC9035889 DOI: 10.3389/fphys.2022.851031] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 02/22/2022] [Indexed: 02/05/2023] Open
Abstract
Although, the effects of 4-non-ylphenol (4-NP) on fish's reproductive hormones were assessed in several studies using adult models, however, the effect of this endocrine disruptor on immature fish's reproductive hormones was not addressed commonly. We aimed to study the apoptosis induction, hematotoxicity, reproductive toxicity, and the recovery associated with 4-NP exposure in juvenile African catfish [Clarias garepinus) using some hormones [17β-estradiol (E2), testosterone (T), follicle-stimulating hormone (FSH), and luteinizing hormone (LH)] and gonad histology as biomarkers. The toxic effects of 4-NP have been studied in many animal models, but there is still limited knowledge about the dose-dependent damage caused by 4-NP exposure in juvenile Clarias gariepinus. A healthy juvenile C. gariepinus was categorized into four groups (n = 3/group; three replicates in each group). The first group was the control, and the other three groups were subjected to 4-NP concentrations as 0.1, 0.2, and 0.3 mg/L for 15 days; they were left for a recovery period of another 15 days. The reproductive hormones of C. gariepinus exposed to 4-NP for 15 days exhibited significant variations between the treatment groups and the control (P < 0.05), which were evident in E2 and T-values, whereas FSH, LH, total protein, and lipid peroxidation values showed non-significant differences among all groups at P < 0.05. Such a situation referred to the fact that the 15-day recovery period was insufficient to remove the impacts of 4-NP doses in concern. The trend of dose-dependent increase/decrease was recorded for T, E2, FSH, and LH. The histopathological alterations of 4-NP treated in gonad tissues were recorded in juvenile C. gariepinus, reflecting their sensitivity to 4-NP estrogenic-like effects. Overall, our results investigate that recovery has improved the reproductive toxicity caused by 4-NP in juvenile C. garepinus. Significant variations between the treated groups and the control group (P < 0.05) were evident in hematological parameters except for hemoglobin (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC). The parameters exhibiting significance decreased with such increased doses [red blood cells (RBCs), hematocrit (Hct), and white blood cells (WBCs)]. Similar patterns of significant variations toward the increase or decrease were recorded following the 15-day recovery period. Apoptotic frequency in erythrocytes and brain cells has increased significantly with increased 4-NP exposure, indicating that 4-NP caused cytotoxic effects, such as apoptosis in a dose-dependent manner. However, these cellular alterations greatly decreased after the 15-day recovery period.
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Affiliation(s)
| | - Zainab Eid
- Department of Zoology, Faculty of Science, Assiut University, Assiut, Egypt
| | - Usama M. Mahmoud
- Department of Zoology, Faculty of Science, Assiut University, Assiut, Egypt
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, South Korea
| | - Imam A. A. Mekkawy
- Department of Zoology, Faculty of Science, Assiut University, Assiut, Egypt
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5
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Spyres MB, Padilla GK, Gerkin RD, Hoyte CO, Wolk BJ, Ruha AM. Late hemotoxicity following North American rattlesnake envenomation treated with crotalidae immune F(ab') 2 (equine) antivenom and crotalidae immune polyvalent Fab (ovine) antivenom reported to the North American Snakebite Sub-registry. Clin Toxicol (Phila) 2022; 60:838-842. [PMID: 35261320 DOI: 10.1080/15563650.2022.2042550] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
INTRODUCTION Late hemotoxicity is common following rattlesnake envenomation treated with crotalidae immune polyvalent Fab (ovine) (FabAV). Initial clinical trials showed crotalidae immune F(ab')2 (equine) (Fab2AV) to be superior to FabAV in preventing late hemotoxicity, but this effect has not been demonstrated in broader populations. This study investigated late hemotoxicity in patients receiving Fab2AV or FabAV after rattlesnake envenomation. METHODS This is a retrospective analysis of prospectively collected data from patients with snakebite reported to the ToxIC North American Snakebite Registry (NASBR) between January 1, 2019, and December 31, 2020. Inclusion criteria were rattlesnake envenomation and administration of antivenom. Patients were excluded if they received more than one type of antivenom. The primary outcome was occurrence of late hemotoxicity (platelets ≤120 k/mm3 or fibrinogen ≤170 mg/dL) in patients receiving Fab2AV and FabAV. Data collected included demographics, envenomation characteristics, laboratory values, and treatment administered. Statistics including t-test and Fisher's exact test were used. RESULTS A total of 201 rattlesnake envenomated patients receiving antivenom were reported to the NASBR in the study period; 144 were included. 49 received Fab2AV alone, 45 received FabAV alone and 50 received both antivenoms. Baseline patient and envenomation characteristics were similar between the groups. Late hemotoxicity occurred in 2/49 patients in the Fab2AV group (4% (95% CI 0.7-12.6)) and in 19/45 patients in the FabAV group (42% (95% CI 28.4-59.0); absolute risk reduction 39.1% (95% CI 21.2-46.2) (p = 0.001). On follow up, 0 patients (0%) receiving Fab2AV were retreated with antivenom; 4 patients (9%) receiving FabAV were retreated (p = 0.049). CONCLUSIONS In the North American Snakebite Registry, late hemotoxicity was less common in rattlesnake envenomated patients treated with Fab2AV compared to FabAV.
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Affiliation(s)
- Meghan Beth Spyres
- Department of Emergency Medicine, Banner-University Medical Center Phoenix, Phoenix, AZ, USA.,The University of Arizona College of Medicine-Phoenix, Phoenix, AZ, USA
| | - Gabriel K Padilla
- Department of Emergency Medicine, Rhode Island Hospital, Brown University Emergency Medicine Residency, RI, Providence
| | - Richard D Gerkin
- Department of Emergency Medicine, Banner-University Medical Center Phoenix, Phoenix, AZ, USA.,The University of Arizona College of Medicine-Phoenix, Phoenix, AZ, USA
| | - Christopher O Hoyte
- Department of Medical Toxicology, Rocky Mountain Poison and Drug Center, Denver, CO, USA.,University of Colorado Denver School of Medicine, Aurora, CO, USA
| | - Brian Joseph Wolk
- Department of Emergency Medicine, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Anne-Michelle Ruha
- Department of Emergency Medicine, Banner-University Medical Center Phoenix, Phoenix, AZ, USA.,The University of Arizona College of Medicine-Phoenix, Phoenix, AZ, USA
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6
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Roacho-Pérez JA, Rodríguez-Aguillón KO, Gallardo-Blanco HL, Velazco-Campos MR, Sosa-Cruz KV, García-Casillas PE, Rojas-Patlán L, Sánchez-Domínguez M, Rivas-Estilla AM, Gómez-Flores V, Chapa-Gonzalez C, Sánchez-Domínguez CN. A Full Set of In Vitro Assays in Chitosan/Tween 80 Microspheres Loaded with Magnetite Nanoparticles. Polymers (Basel) 2021; 13:polym13030400. [PMID: 33513783 PMCID: PMC7865444 DOI: 10.3390/polym13030400] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/31/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 12/19/2022] Open
Abstract
Microspheres have been proposed for different medical applications, such as the delivery of therapeutic proteins. The first step, before evaluating the functionality of a protein delivery system, is to evaluate their biological safety. In this work, we developed chitosan/Tween 80 microspheres loaded with magnetite nanoparticles and evaluated cell damage. The formation and physical-chemical properties of the microspheres were determined by FT-IR, Raman, thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDS), dynamic light scattering (DLS), and SEM. Cell damage was evaluated by a full set of in vitro assays using a non-cancerous cell line, human erythrocytes, and human lymphocytes. At the same time, to know if these microspheres can load proteins over their surface, bovine serum albumin (BSA) immobilization was measured. Results showed 7 nm magnetite nanoparticles loaded into chitosan/Tween 80 microspheres with average sizes of 1.431 µm. At concentrations from 1 to 100 µg/mL, there was no evidence of changes in mitochondrial metabolism, cell morphology, membrane rupture, cell cycle, nor sister chromatid exchange formation. For each microgram of microspheres 1.8 µg of BSA was immobilized. The result provides the fundamental understanding of the in vitro biological behavior, and safety, of developed microspheres. Additionally, this set of assays can be helpful for researchers to evaluate different nano and microparticles.
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Affiliation(s)
- Jorge A Roacho-Pérez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (J.A.R.-P.); (K.O.R.-A.); (A.M.R.-E.)
| | - Kassandra O Rodríguez-Aguillón
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (J.A.R.-P.); (K.O.R.-A.); (A.M.R.-E.)
| | - Hugo L Gallardo-Blanco
- Departamento de Genética, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (H.L.G.-B.); (M.R.V.-C.); (L.R.-P.)
| | - María R Velazco-Campos
- Departamento de Genética, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (H.L.G.-B.); (M.R.V.-C.); (L.R.-P.)
| | - Karla V Sosa-Cruz
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez 32310, Mexico; (K.V.S.-C.); (P.E.G.-C.); (V.G.-F.)
| | - Perla E García-Casillas
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez 32310, Mexico; (K.V.S.-C.); (P.E.G.-C.); (V.G.-F.)
| | - Luz Rojas-Patlán
- Departamento de Genética, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (H.L.G.-B.); (M.R.V.-C.); (L.R.-P.)
| | - Margarita Sánchez-Domínguez
- Centro de Investigación en Materiales Avanzados, S.C. (CIMAV, S.C.), Unidad Monterrey, Apodaca 66628, Mexico;
| | - Ana M Rivas-Estilla
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (J.A.R.-P.); (K.O.R.-A.); (A.M.R.-E.)
| | - Víctor Gómez-Flores
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez 32310, Mexico; (K.V.S.-C.); (P.E.G.-C.); (V.G.-F.)
| | - Christian Chapa-Gonzalez
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez 32310, Mexico; (K.V.S.-C.); (P.E.G.-C.); (V.G.-F.)
- Correspondence: (C.C.-G.); (C.N.S.-D.)
| | - Celia N Sánchez-Domínguez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (J.A.R.-P.); (K.O.R.-A.); (A.M.R.-E.)
- Correspondence: (C.C.-G.); (C.N.S.-D.)
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7
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Pandey DP, Chaudhary B, Ram Shrestha B. Documentation of a proven Mountain Pitviper ( Ovophis monticola) envenomation in Kathmandu, Nepal, with its distribution ranges: implications for prevention and control of pitviper bites in Asia. J Venom Res 2021; 11:1-6. [PMID: 33747433 PMCID: PMC7970453] [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] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/19/2020] [Accepted: 01/06/2021] [Indexed: 11/12/2022]
Abstract
We document inadequately diagnosed coagulopathy (potential to be life threatening) due to Ovophis monticola bite. Although its bites are common in the hills of Nepal, associated envenomations have not been documented elaborately. Herein, we present the clinical and treatment details of a proven O. monticola bite and areas where it may pose the risk of envenomations (suggesting huge populations in Asia to be vulnerable to its bites). Its envenomation was managed symptomatically with several non-evidence-based interventions. Since no specific pitviper antivenom is available in Nepal yet, managing coagulopathy associated to O. monticola envenomation is still challenging. This case emphasizes the need of developing the standard protocol for the diagnosis and management of pitviper bites and study of effectiveness of the available pitviper antivenoms until specific pitviper antivenom is available. Further, the demonstrated distribution localities of this species may have implications for snakebite prevention and designing and distribution of the effective antivenoms.
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Affiliation(s)
- Deb Prasad Pandey
- 1School of Medicine and Public Health, Faculty of Health and Medicine, The University of Newcastle, Australia,2Department of Veterinary Microbiology and Parasitology, Agriculture and Forestry University, Rampur, Chitwan, Nepal,3Institute for Social and Environmental Research, Fulbari, Chitwan, Nepal,*Correspondence to: Deb Prasad Pandey, , Tel: +977 984 5055137
| | - Budhan Chaudhary
- 4Department of Zoology, Birendra Multiple Campus, Tribhuvan University, Bharatpur, Chitwan, Nepal
| | - Bhola Ram Shrestha
- 5National Academy of Medical Sciences, Bir Hospital, Kathmandu, Nepal, (current address: Karnali Academy Of Health Sciences, Nepal)
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Borowski E, Salewska N, Boros-Majewska J, Serocki M, Chabowska I, Milewska MJ, Ziętkowski D, Milewski S. The Substantial Improvement of Amphotericin B Selective Toxicity Upon Modification of Mycosamine with Bulky Substituents. Med Chem 2020; 16:128-139. [PMID: 30501601 DOI: 10.2174/1573406415666181203114629] [Citation(s) in RCA: 4] [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: 08/27/2018] [Revised: 11/13/2018] [Accepted: 11/25/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND It is assumed that the unfavorable selective toxicity of an antifungal drug Amphotericin B (AmB) can be improved upon chemical modification of the antibiotic molecule. OBJECTIVE The aim of this study was verification of the hypothesis that introduction of bulky substituents at the amino sugar moiety of the antibiotic may result in diminishment of mammalian in vitro toxicity of thus prepared AmB derivatives. METHODS Twenty-eight derivatives of AmB were obtained upon chemical modification of the amino group of mycosamine residue. This set comprised 10 N-succinimidyl-, 4 N-benzyl-, 5 Nthioureidyl- and 9 N-aminoacyl derivatives. Parameters characterizing biological in vitro activity of novel compounds were determined. RESULTS All the novel compounds demonstrated lower than AmB antifungal in vitro activity but most of them exhibited negligible cytotoxicity against human erythrocytes and three mammalian cell lines. In consequence, the selective toxicity of majority of novel antifungals, reflected by the selective toxicity index (STI = EH50/IC50) was improved in comparison with that of AmB, especially in the case of 5 compounds. The novel AmB derivatives with the highest STI, induced substantial potassium efflux from Candida albicans cells at concentrations slightly lower than IC50s but did not trigger potassium release from human erythrocytes at concentrations lower than 100 μg/mL. CONCLUSION Some of the novel AmB derivatives can be considered promising antifungal drug candidates.
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Affiliation(s)
- Edward Borowski
- BLIRT S.A., Gdańsk, Poland, Trzy Lipy 3, 80-172 Gdańsk, Poland
| | - Natalia Salewska
- BLIRT S.A., Gdańsk, Poland, Trzy Lipy 3, 80-172 Gdańsk, Poland.,Department of Organic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland
| | - Joanna Boros-Majewska
- BLIRT S.A., Gdańsk, Poland, Trzy Lipy 3, 80-172 Gdańsk, Poland.,Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland
| | - Marcin Serocki
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland
| | | | - Maria J Milewska
- Department of Organic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland
| | | | - Sławomir Milewski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland
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9
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Roacho-Pérez JA, Ruiz-Hernandez FG, Chapa-Gonzalez C, Martínez-Rodríguez HG, Flores-Urquizo IA, Pedroza-Montoya FE, Garza-Treviño EN, Bautista-Villareal M, García-Casillas PE, Sánchez-Domínguez CN. Magnetite Nanoparticles Coated with PEG 3350-Tween 80: In Vitro Characterization Using Primary Cell Cultures. Polymers (Basel) 2020; 12:polym12020300. [PMID: 32024291 PMCID: PMC7077372 DOI: 10.3390/polym12020300] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 12/30/2019] [Revised: 01/21/2020] [Accepted: 01/24/2020] [Indexed: 12/13/2022] Open
Abstract
Some medical applications of magnetic nanoparticles require direct contact with healthy tissues and blood. If nanoparticles are not designed properly, they can cause several problems, such as cytotoxicity or hemolysis. A strategy for improvement the biological proprieties of magnetic nanoparticles is their functionalization with biocompatible polymers and nonionic surfactants. In this study we compared bare magnetite nanoparticles against magnetite nanoparticles coated with a combination of polyethylene glycol 3350 (PEG 3350) and polysorbate 80 (Tween 80). Physical characteristics of nanoparticles were evaluated. A primary culture of sheep adipose mesenchymal stem cells was developed to measure nanoparticle cytotoxicity. A sample of erythrocytes from a healthy donor was used for the hemolysis assay. Results showed the successful obtention of magnetite nanoparticles coated with PEG 3350-Tween 80, with a spherical shape, average size of 119.2 nm and a zeta potential of +5.61 mV. Interaction with mesenchymal stem cells showed a non-cytotoxic propriety at doses lower than 1000 µg/mL. Interaction with erythrocytes showed a non-hemolytic propriety at doses lower than 100 µg/mL. In vitro information obtained from this work concludes that the use of magnetite nanoparticles coated with PEG 3350-Tween 80 is safe for a biological system at low doses.
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Affiliation(s)
- Jorge A Roacho-Pérez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico; (J.A.R.-P.); (F.G.R.-H.); (H.G.M.-R.); (F.E.P.-M.); (E.N.G.-T.)
| | - Fernando G Ruiz-Hernandez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico; (J.A.R.-P.); (F.G.R.-H.); (H.G.M.-R.); (F.E.P.-M.); (E.N.G.-T.)
| | - Christian Chapa-Gonzalez
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez, Chihuahua 32310, Mexico;
| | - Herminia G Martínez-Rodríguez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico; (J.A.R.-P.); (F.G.R.-H.); (H.G.M.-R.); (F.E.P.-M.); (E.N.G.-T.)
| | - Israel A Flores-Urquizo
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, San Nicolas de los Garza, Nuevo León 66455, Mexico;
| | - Florencia E Pedroza-Montoya
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico; (J.A.R.-P.); (F.G.R.-H.); (H.G.M.-R.); (F.E.P.-M.); (E.N.G.-T.)
| | - Elsa N Garza-Treviño
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico; (J.A.R.-P.); (F.G.R.-H.); (H.G.M.-R.); (F.E.P.-M.); (E.N.G.-T.)
| | - Minerva Bautista-Villareal
- Departamento de Ciencias de los Alimentos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolas de los Garza, Nuevo León 66455, Mexico;
| | - Perla E García-Casillas
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez, Chihuahua 32310, Mexico;
- Correspondence: (P.E.G.-C.); (C.N.S.-D.)
| | - Celia N Sánchez-Domínguez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico; (J.A.R.-P.); (F.G.R.-H.); (H.G.M.-R.); (F.E.P.-M.); (E.N.G.-T.)
- Correspondence: (P.E.G.-C.); (C.N.S.-D.)
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10
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Piotrowska U, Oledzka E, Kamysz W, Białek S, Sobczak M. The Effect of Polymer Microstructure on Encapsulation Efficiency and Release Kinetics of Citropin 1.1 from the Poly(ε-caprolactone) Microparticles. Nanomaterials (Basel) 2018; 8:E482. [PMID: 29966346 PMCID: PMC6071209 DOI: 10.3390/nano8070482] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 06/22/2018] [Accepted: 06/28/2018] [Indexed: 01/22/2023]
Abstract
Cationic antimicrobial peptides represent a promising therapeutic option against multidrug-resistant bacteria for the treatment of local infections. However, due to their low stability and potential toxicity, there are limited possibilities for their application in clinical practice. In this study, different poly(ε-caprolactone) (PCL) microparticles (MPs) loaded with citropin 1.1 (CIT) were investigated in order to demonstrate the effect of the polymer microstructure on the encapsulation efficiency (EE) and kinetics of the peptide release from the newly developed devices. The characteristics of the new systems in terms of surface morphology, particle size, EE and zeta potential analysis, as well as the haemolytic activities of the peptide were investigated. The in vitro release kinetics of CIT from the MPs was also investigated. CIT loading was favoured by a high content of negative charged linear polymer chains in the PCL structure. The presence of non-charged, amorphous macrocycle domains results in faster degradation of the PCL matrix. Depending on the crystallinity of the PCL, the peptide release exhibited a near-zero-order or near-first-order profile with no “burst release”. The results indicated that CIT-loaded PCL MPs could potentially be a promising drug delivery system (DDS) for the treatment of local infections.
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Affiliation(s)
- Urszula Piotrowska
- Department of Biomaterials Chemistry, Chair of Analytical Chemistry and Biomaterials, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1 St., 02-097 Warsaw, Poland.
- Department of Organic Chemistry and Biochemistry, Faculty of Materials Science and Design, Kazimierz Pulaski University of Technology and Humanities in Radom, 27 Chrobrego St., 26-600 Radom, Poland.
| | - Ewa Oledzka
- Department of Biomaterials Chemistry, Chair of Analytical Chemistry and Biomaterials, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1 St., 02-097 Warsaw, Poland.
| | - Wojciech Kamysz
- Department of Inorganic Chemistry, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Gdansk, Al. Gen. J. Hallera 107 St., 80-416 Gdansk, Poland.
| | - Sławomir Białek
- Department of Biochemistry and Clinical Chemistry, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1 St., 02-097 Warsaw, Poland.
| | - Marcin Sobczak
- Department of Biomaterials Chemistry, Chair of Analytical Chemistry and Biomaterials, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1 St., 02-097 Warsaw, Poland.
- Department of Organic Chemistry and Biochemistry, Faculty of Materials Science and Design, Kazimierz Pulaski University of Technology and Humanities in Radom, 27 Chrobrego St., 26-600 Radom, Poland.
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11
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Jain S, Yadav P, Swami R, Swarnakar NK, Kushwah V, Katiyar SS. Lyotropic Liquid Crystalline Nanoparticles of Amphotericin B: Implication of Phytantriol and Glyceryl Monooleate on Bioavailability Enhancement. AAPS PharmSciTech 2018. [PMID: 29532426 DOI: 10.1208/s12249-018-0986-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Implication of different dietary specific lipids such as phytantriol (PT) and glyceryl monooleate (GMO) on enhancing the oral bioavailability of amphotericin B (AmB) was examined. Liquid crystalline nanoparticles (LCNPs) were prepared using hydrotrope method, followed by in vitro characterization, Caco-2 cell monolayer uptake, and in vivo pharmacokinetic and toxicity evaluation. Optimized AmB-LCNPs displayed small particle size (< 210 nm) with a narrow distribution (~ 0.2), sustained drug release and high gastrointestinal stability, and reduced hemolytic toxicity. PLCNPs presented slower release, i.e., ~ 80% as compared to ~ 90% release in case of GLCNPs after 120 h. Significantly higher uptake in Caco-2 monolayer substantiated the role of LCNPs in increasing the intestinal permeability followed by increased drug titer in plasma. Pharmacokinetic studies demonstrated potential of PT in enhancing the bioavailability (approximately sixfold) w.r.t. of its native counterpart with reduced nephrotoxicity as presented by reduced nephrotoxicity biomarkers and histology studies. These studies established usefulness of PLCNPs over GLCNPs and plain drug. It can be concluded that acid-resistant lipid, PT, can be utilized efficiently as an alternate lipid for the preparation of LCNPs to enhance bioavailability and to reduce nephrotoxicity of the drug as compared to other frequently used lipid, i.e., GMO.
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12
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Ermakova AM, Morozova JE, Shalaeva YV, Syakaev VV, Gubaidullin AT, Voloshina AD, Zobov VV, Nizameev IR, Bazanova OB, Antipin IS, Konovalov AI. Nanoconjugates of a calixresorcinarene derivative with methoxy poly(ethylene glycol) fragments for drug encapsulation. Beilstein J Nanotechnol 2018; 9:2057-2070. [PMID: 30116696 PMCID: PMC6071701 DOI: 10.3762/bjnano.9.195] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 07/11/2018] [Indexed: 05/07/2023]
Abstract
In order to obtain a non-toxic amphiphilic calixresorcinarene capable to form nanoconjugates for drug encapsulation, tetraundecylcalixresorcinarene functionalized by methoxy poly(ethylene glycol) chains has been synthesized. The macrocycle obtained is characterized by low hemotoxicity. In aqueous solution it forms nanoassociates that are able to encapsulate organic substrates of different hydrophobicity, including drugs (doxorubicin, naproxen, ibuprofen, quercetin). The micelles of the macrocycle slowed down the release of the hydrophilic substrates in vitro. In physiological sodium chloride solution and phosphate-buffered saline, the micelles of the macrocycle acquire thermoresponsive properties and exhibit a temperature-controlled release of doxorubicin in vitro. The combination of the low toxicity and the encapsulation properties of the obtained calixresorcinarene-mPEG conjugate shows promising potential for the use as a supramolecular drug-delivery system.
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Affiliation(s)
- Alina M Ermakova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
- Kazan Federal University, Kremlevskaya st. 18, 420008 Kazan, Russian Federation
| | - Julia E Morozova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
- Kazan Federal University, Kremlevskaya st. 18, 420008 Kazan, Russian Federation
| | - Yana V Shalaeva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
- Kazan Federal University, Kremlevskaya st. 18, 420008 Kazan, Russian Federation
| | - Victor V Syakaev
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
| | - Aidar T Gubaidullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
| | - Alexandra D Voloshina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
| | - Vladimir V Zobov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
| | - Irek R Nizameev
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
- Kazan National Research Technical University named after A. N. Tupolev – KAI, K. Marx str. 10, 420111 Kazan, Russian Federation
| | - Olga B Bazanova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
| | - Igor S Antipin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
- Kazan Federal University, Kremlevskaya st. 18, 420008 Kazan, Russian Federation
| | - Alexander I Konovalov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, 420088 Kazan, Russian Federation
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13
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Hu D, Han Z, Li C, Lv L, Cheng Z, Liu S. Florfenicol induces more severe hemotoxicity and immunotoxicity than equal doses of chloramphenicol and thiamphenicol in Kunming mice. Immunopharmacol Immunotoxicol 2016; 38:472-485. [PMID: 27788606 DOI: 10.1080/08923973.2016.1247853] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Amphenicols are effective, broad-spectrum antibiotics that function by inhibiting the peptidyl transferase activity of bacteria, while the drugs can also inhibit mitochondrial protein synthesis in eukaryotes through the same mechanism, which leads to multi-organ toxicity. Some side effects of each drug have been studied, while differences in the severity of the hemotoxicities and immunotoxicities of amphenicols have not been reported. Thus, it is important to identify, evaluate, and compare the potential hemotoxicities and immunotoxicities to guide their proper use in humans and animals, which will guarantee food safety and animal welfare. Ovalbumin-immunized Kunming mice were gavaged daily with amphenicols for seven days. Blood samples were collected for hematology analysis, and measuring anti-ovalbumin antibody levels and serum intereukin-2 concentrations. The bone marrow, spleen and thymus were collected for histopathology and apoptosis analyzes. Bone marrow nucleated cells (BMNCs) and splenocytes were harvested to determine their cell cycle stages and to analyze lymphocyte proliferation. The results demonstrated that amphenicols, especially florfenicol (FLO), induced cell cycle arrest and apoptosis of hematopoietic cells, and it changed the bone marrow hematopoietic microenvironment by decreasing the number of peripheral blood cells. Moreover, amphenicols, especially FLO, induced hypoplasia and atrophy of the spleen and thymus, induced cell cycle arrest, as well as splenocyte apoptosis, and decreased the proliferation and viability of lymphocytes and the humoral and cellular immunity of the treated mice. These results suggest that amphenicols induce hemotoxicity and immunotoxicity to some extent, and that FLO induces more severe toxicity than equal doses of chloramphenicol (CAP) and thiamphenicol (TAP).
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Affiliation(s)
- Dongfang Hu
- a Department of Animal Science and Technology , Shandong Agricultural University , Tai'an , Shandong , China
| | - Ziqiang Han
- a Department of Animal Science and Technology , Shandong Agricultural University , Tai'an , Shandong , China
| | - Chunling Li
- b Shandong Quality Inspection Center for Medical Devices , Ji'nan , Shandong , China
| | - Lin Lv
- a Department of Animal Science and Technology , Shandong Agricultural University , Tai'an , Shandong , China
| | - Zilong Cheng
- a Department of Animal Science and Technology , Shandong Agricultural University , Tai'an , Shandong , China
| | - Sidang Liu
- a Department of Animal Science and Technology , Shandong Agricultural University , Tai'an , Shandong , China
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14
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Diaz IL, Parra C, Linarez M, Perez LD. Design of Micelle Nanocontainers Based on PDMAEMA-b-PCL-b-PDMAEMA Triblock Copolymers for the Encapsulation of Amphotericin B. AAPS PharmSciTech 2015; 16:1069-78. [PMID: 25669917 DOI: 10.1208/s12249-015-0298-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 01/19/2015] [Indexed: 12/24/2022] Open
Abstract
The clinical application of amphotericin B (AmB), a broad spectrum antifungal agent, is limited by its poor solubility in aqueous medium and also by its proven renal toxicity. In this work, AmB was encapsulated in micelles obtained from the self-assembly of PDMAEMA-b-PCL-b-PDMAEMA triblock copolymers. The amount of encapsulated AmB depended on the copolymer composition, and short blocks of polycaprolactone (PCL) and poly(2-dimethylaminoethyl methacrylate) (PDMAEMA) showed better performance. All the studied formulations exhibited a controlled release of AmB along 150 h. The formulations presented reduced hemotoxicity while maintaining antifungal activities against Candida albicans, Candida krusei, and Candida glabrata comparable with free AmB. A reduction on the hemotoxicity was found to be due to the slow release and subsequent low aggregation achieved with the use of polymer micelle nanocontainers.
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15
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ITOH YOSHIYUKI, IKEDA MITSURU, HIRASAWA NAOKI, ISHIHARA SHUNICHI, OKUDA TAKAHITO, MURAO TAKAYUKI, KUBOTA SEIJI, OKADA TOHRU, NAGANAWA SHINJI, ISHIGAKI TAKEO. Retrospective case series of 15 patients treated with chemoradiation using 5-FU and nedaplatin for gynecological malignancy: with regard to hemotoxicity. Nagoya J Med Sci 2014; 76:11-6. [PMID: 25129987 PMCID: PMC4345731] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We conducted a retrospective comparison of the hemotoxicity of the sequential administration of 5-Fluorouracil (5-FU) prior to Nedaplatin (NDP) (FN therapy) and that of its reverse sequence (NF therapy) for gynecological malignancy. From February 2002 to November 2004, a total of 15 gynecological malignancy patients were treated with radiation therapy combined with NDP and 5-FU. Of these 15 patients, 5 were treated with NF therapy, and 10 were treated with FN therapy. No significant differences were detected between the FN and NF groups with regard to white blood cell count (WBC), hemoglobin level (Hb), and platelet count. The results of this study do not show that the FN group has a lesser degree of hemotoxicity than the NF group.
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Affiliation(s)
- YOSHIYUKI ITOH
- Departments of Radiology, Nagoya University Graduate School of Medicine, Nagoya Japan
| | - MITSURU IKEDA
- Departments of Radiological Technology, Nagoya University Graduate School of Medicine, Nagoya Japan
| | - NAOKI HIRASAWA
- Departments of Radiology, Nagoya University Graduate School of Medicine, Nagoya Japan
| | - SHUNICHI ISHIHARA
- Departments of Radiology, Nagoya University Graduate School of Medicine, Nagoya Japan
| | - TAKAHITO OKUDA
- Department of Radiology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - TAKAYUKI MURAO
- Department of Radiology, Ichinomiya Municipal Hospital, Ichinomiya, Japan
| | - SEIJI KUBOTA
- Departments of Radiology, Nagoya University Graduate School of Medicine, Nagoya Japan
| | - TOHRU OKADA
- Departments of Radiology, Nagoya University Graduate School of Medicine, Nagoya Japan
| | - SHINJI NAGANAWA
- Departments of Radiology, Nagoya University Graduate School of Medicine, Nagoya Japan
| | - TAKEO ISHIGAKI
- Departments of Radiology, Nagoya University Graduate School of Medicine, Nagoya Japan
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