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Zhang Q, Wen H, Liao G, Cai X. Tendon stem cells seeded on dynamic chondroitin sulfate and chitosan hydrogel scaffold with BMP2 enhance tendon-to-bone healing. Heliyon 2024; 10:e25206. [PMID: 38370180 PMCID: PMC10867601 DOI: 10.1016/j.heliyon.2024.e25206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 12/07/2023] [Accepted: 01/23/2024] [Indexed: 02/20/2024] Open
Abstract
Failure to adequately reconstruct the tendon-to-bone interface constitutes the primary etiology underlying rotator cuff retear after surgery. The purpose of this study is to construct a dynamic chondroitin sulfate and chitosan hydrogel scaffold (CHS) with bone morphogenetic protein 2 (BMP2), then seed tendon stem cells (TSCs) on BMP2-CHS for the rotator cuff reconstruction of tendon-to-bone interface. In this dynamic hydrogel system, the scaffold could not only have good biocompatibility and degradability but also significantly promote the proliferation and differentiation of TSCs. The ability of BMP2-CHS combined with TSCs to promote regeneration of tendon-to-bone interface was further verified in the rabbit rotator cuff tear model. The results showed that BMP2-CHS combined with TSCs could induce considerable collagen, fibrocartilage, and bone arrangement and growth at the tendon-to-bone interface and promote the biomechanical properties. Overall, TSCs seeded on CHS with BMP2 can enhance tendon-to-bone healing and provide a new possibility for improving the poor prognosis of rotator cuff surgery.
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Affiliation(s)
- Qingsong Zhang
- The First School Clinical Medicine, Southern Medical University, Guangdong 510515, China
- Wuhan Fourth Hospital, Wuhan 430030, China
| | - Huawei Wen
- Wuhan Fourth Hospital, Wuhan 430030, China
| | | | - Xianhua Cai
- The First School Clinical Medicine, Southern Medical University, Guangdong 510515, China
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Rodrigues PSDM, Cirqueira Martins H, Falcão MS, Trevisan M, Portaro FCV, da Silva LG, Sano-Martins IS, Gonçalves LRDC, Seibert CS. Effects of Mauritia flexuosa L. f. buriti oil on symptoms induced by Bothrops moojeni snake envenomation. JOURNAL OF ETHNOPHARMACOLOGY 2023; 313:116612. [PMID: 37156448 DOI: 10.1016/j.jep.2023.116612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In Brazil, there are species of snakes that become involved in accidents and cause serious health problems to the inhabitants, highlighting the genus Bothrops for being responsible for approximately 90% of accidents reported annually. In the northern region of the country, this genus is responsible for the largest number of accidents, especially among rural dwellers. These populations invest in alternative treatments for with the purpose of improving the symptoms caused by snakebites. The species Mauritia flexuosa L. f., known as buriti, is traditionally used for the treatment of envenomation by snakes. AIM OF THE STUDY This study aimed to evaluate the antiophidic potential of the oil of Mauritia flexuosa L. f. for Bothrops moojeni H. venom, confronting cultural and scientific knowledge. MATERIALS AND METHODS The physicochemical properties were determined, and the components present in the oil, extracted from fruit pulp, were analyzed by Gas Chromatography Coupled with Mass Spectrometry. The in vitro inhibitory capacity of the oil for phospholipase, metalloprotease and serine protease activities was investigated. In the in vivo studies, male Swiss mice were used to evaluate the effect of oil on lethality and toxicity, and hemorrhagic, myotoxic and edematogenic activities were assessed. RESULTS GC‒MS analysis identification of 90.95% of the constituents of the oil, with the main components being 9-eicosenoic acid, (Z)- (34.54%), n-hexadecanoic acid (25.55%) and (E)-9-octadecenoic acid ethyl ester (12.43%). For the substrates, the outcomes indicate that the oil inhibited the activity of the main classes of toxins present in Bothrops moojeni H. venom (VBm) at the highest dose tested (0.5 μL), with inhibition of 84% for the hydrolysis of the selective substrate for serine protease and inhibition of 60% for the hydrolysis of substrates for PLA2 and metalloproteases. The antiophidic activity in vivo was evaluated with two concentrations of the oil: 1.5 mg, the dosage the population, diluted in mineral oil to a volume of 1 tablespoon and 15 mg, administered by gavage 30 min before poisoning and at time zero (concomitant to poisoning), and both concentrations administered by gavage in combination with topical use at time zero. The bleeding time in the group treated with oil at a concentration of 15 mg administered at time zero was significantly lower than that in the control group (p < 0.05). However, a greater inhibition of bleeding time was observed when local application was combined with the gavage treatment at both concentrations tested at time zero (p < 0.05). In the myotoxicity test, oil was efficient in reducing the myotoxic effects induced by the venom at the two concentrations tested, with gavage administration at time zero and gavage plus topical administration at time zero (p < 0.05). CONCLUSIONS The data obtained show that the oil is safe to use at the concentrations studied and contains fatty acids that may collaborate for cellular-level repair of the injuries caused by Bm poisoning. The in vitro and in vivo experiments showed that oil inhibits the main proteolytic enzymes present in the venom and that it has important activities to control the local effects caused by bothropic venom.
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Affiliation(s)
| | - Hemilly Cirqueira Martins
- Postgraduate Program in Environmental Sciences, PPGCiamb, Federal University of Tocantins, Palmas, TO, Brazil.
| | - Milena Santos Falcão
- Postgraduate Program in Environmental Sciences, PPGCiamb, Federal University of Tocantins, Palmas, TO, Brazil.
| | - Márcio Trevisan
- Postgraduate Program in Environmental Sciences, PPGCiamb, Federal University of Tocantins, Palmas, TO, Brazil.
| | | | - Lais Gomes da Silva
- Laboratory of Immunochemistry, Butantan Institute, Av. Vital Brazil, 1500, São Paulo, SP, Brazil.
| | - Ida Sigueko Sano-Martins
- Laboratory of Pathophysiology, Butantan Institute, Av. Vital Brazil, 1500, São Paulo, SP, Brazil.
| | | | - Carla Simone Seibert
- Postgraduate Program in Environmental Sciences, PPGCiamb, Federal University of Tocantins, Palmas, TO, Brazil.
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Mirhaji SS, Soleimanpour M, Derakhshankhah H, Jafari S, Mamashli F, Rooki M, Karimi MR, Nedaei H, Pirhaghi M, Motasadizadeh H, Ghasemi A, Nezamtaheri MS, Saadatpour F, Goliaei B, Delattre C, Saboury AA. Design, optimization and characterization of a novel antibacterial chitosan-based hydrogel dressing for promoting blood coagulation and full-thickness wound healing: A biochemical and biophysical study. Int J Biol Macromol 2023; 241:124529. [PMID: 37085077 DOI: 10.1016/j.ijbiomac.2023.124529] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/14/2023] [Accepted: 04/16/2023] [Indexed: 04/23/2023]
Abstract
The use of hydrogel dressings has become increasingly popular as a scaffold for skin tissue engineering. Herein, we have developed an innovative wound dressing using chitosan, fibrinogen, nisin, and EDTA as an effective antibacterial scaffold for wound treatment. The structural and functional characteristics of the hydrogel, including morphology, mechanical strength, drug encapsulation and release, swelling behaviors, blood coagulation, cytotoxicity, and antibacterial activity, were studied. Spectroscopic studies indicated that the attachment of chitosan to fibrinogen is associated with minimal change in its secondary structure; subsequently, at higher temperatures, it is expected to preserve fibrinogen's conformational stability. Mechanical and blood coagulation analyses indicated that the incorporation of fibrinogen into the hydrogel resulted in accelerated clotting and enhanced mechanical properties. Our cell studies showed biocompatibility and non-toxicity of the hydrogel along with the promotion of cell migration. In addition, the prepared hydrogel indicated an antibacterial behavior against both Gram-positive and Gram-negative bacteria. Interestingly, the in vivo data revealed enhanced tissue regeneration and recovery within 17 days in the studied animals. Taken together, the results obtained from in vitro and histological assessments indicate that this innovatively designed hydrogel shows good potential as a candidate for wound healing.
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Affiliation(s)
| | - Marjan Soleimanpour
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Hossein Derakhshankhah
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Samira Jafari
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Mamashli
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Meisam Rooki
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Iran
| | | | - Hadi Nedaei
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Mitra Pirhaghi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Hamidreza Motasadizadeh
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Atiyeh Ghasemi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | | | - Fatemeh Saadatpour
- School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Bahram Goliaei
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Cédric Delattre
- Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France; Université Clermont Auvergne, CNRS, Clermont Auvergne INP, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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Rodrigues Sousa H, Sá Lima I, Matheus Lima Neris L, Santos Silva A, Maria Silva Santos Nascimento A, Pereira de Araújo F, Felippe Ratke R, Anteveli Osajima J, Loiola Edvan R, Kauany da Silva Azevedo C, Henrique Vilsinski B, Curti Muniz E, Silva-Filho EC. Innovative hydrogels made from babassu mesocarp for technological application in agriculture. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Hilal A, Florowska A, Florowski T, Wroniak M. A Comparative Evaluation of the Structural and Biomechanical Properties of Food-Grade Biopolymers as Potential Hydrogel Building Blocks. Biomedicines 2022; 10:2106. [PMID: 36140206 PMCID: PMC9495968 DOI: 10.3390/biomedicines10092106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/15/2022] [Accepted: 08/24/2022] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to conduct a comparative assessment of the structural and biomechanical properties of eight selected food-grade biopolymers (pea protein, wheat protein, gellan gum, konjac gum, inulin, maltodextrin, psyllium, and tara gum) as potential hydrogel building blocks. The prepared samples were investigated in terms of the volumetric gelling index, microrheological parameters, physical stability, and color parameters. Pea protein, gellan gum, konjac gum, and psyllium samples had high VGI values (100%), low solid−liquid balance (SLB < 0.5), and high macroscopic viscosity index (MVI) values (53.50, 59.98, 81.58, and 45.62 nm−2, respectively) in comparison with the samples prepared using wheat protein, maltodextrin, and tara gum (SLB > 0.5, MVI: 13.58, 0.04, and 0.25 nm−2, respectively). Inulin had the highest elasticity index value (31.05 nm−2) and MVI value (590.17 nm−2). The instability index was the lowest in the case of pea protein, gellan gum, konjac gum, and inulin (below 0.02). The color parameters and whiteness index (WI) of each biopolymer differed significantly from one another. Based on the obtained results, pea protein, gellan gum, konjac gum, and psyllium hydrogels had similar structural and biomechanical properties, while inulin hydrogel had the most diverse properties. Wheat protein, maltodextrin, and tara gum did not form a gel structure.
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Affiliation(s)
- Adonis Hilal
- Department of Food Technology and Assessment, Institute of Food Science, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
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