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Huyan Y, Chang Y, Song J. Application of Homograft Valved Conduit in Cardiac Surgery. Front Cardiovasc Med 2021; 8:740871. [PMID: 34712711 PMCID: PMC8545902 DOI: 10.3389/fcvm.2021.740871] [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: 07/13/2021] [Accepted: 09/20/2021] [Indexed: 11/13/2022] Open
Abstract
Valved conduits often correct the blood flow of congenital heart disease by connecting the right ventricle to the pulmonary artery (RV-PA). The homograft valved conduit was invented in the 1960s, but its wide application is limited due to the lack of effective sterilization and preservation methods. Modern cryopreservation prolongs the preservation time of homograft valved conduit, which makes it become the most important treatment at present, and is widely used in Ross and other operations. However, homograft valved conduit has limited biocompatibility and durability and lacks any additional growth capacity. Therefore, decellularized valved conduit has been proposed as an effective improved method, which can reduce immune response and calcification, and has potential growth ability. In addition, as a possible substitute, commercial xenograft valved conduit has certain advantages in clinical application, and tissue engineering artificial valved conduit needs to be further studied.
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Affiliation(s)
- Yige Huyan
- The Cardiomyopathy Research Group at Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuan Chang
- The Cardiomyopathy Research Group at Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiangping Song
- The Cardiomyopathy Research Group at Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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2
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Pruß D, Yang H, Luo X, Liu D, Hegermann J, Wolkers WF, Sieme H, Oldenhof H. high-throughput droplet vitrification of stallion sperm using permeating cryoprotective agents. Cryobiology 2021; 101:67-77. [PMID: 34077709 DOI: 10.1016/j.cryobiol.2021.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 03/12/2021] [Accepted: 05/18/2021] [Indexed: 01/01/2023]
Abstract
Stallion sperm is typically cryopreserved using low cooling rates and low concentrations of cryoprotective agents (CPAs). The inevitable water-to-ice phase transition during cryopreservation is damaging and can be prevented using vitrification. Vitrification requires high cooling rates and high CPA concentrations. In this study, the feasibility of stallion sperm vitrification was investigated. A dual-syringe pump system was used to mix sperm equilibrated in a solution with a low concentration of CPAs, with a solution containing a high CPA concentration, and to generate droplets of a defined size (i.e., ~20 μL) that were subsequently cooled by depositing on an aluminum alloy block placed in liquid nitrogen. Mathematical modeling was performed to compute the heat transfer and rate of cooling. The minimum CPA concentration needed for vitrification was determined for various CPAs (glycerol, ethylene glycol, propylene glycol, dimethyl sulfoxide) and combinations thereof, while effects of droplet size and carrier solution were also identified. Sperm vitrification was eventually done using a glycerol/propylene glycol (1/1) mixture at a final concentration of 45% in buffered saline supplemented with 3% albumin and polyvinylpyrrolidon, while warming was done in standard diluent supplemented with 100 mM sucrose. The sperm concentration was found to greatly affect sperm membrane integrity after vitrification-and-warming, i.e., was found to be 21 ± 12% for 10 × 106 sperm mL-1 and 54 ± 8% for 1 × 106 sperm mL-1. However, an almost complete loss of sperm motility was observed. In conclusion, successful sperm vitrification requires establishing the narrow balance between droplet size, sperm concentration, CPA type and concentration, and exposure time.
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Affiliation(s)
- David Pruß
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Huaqing Yang
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany; Biostabilization Laboratory, Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany; Institute of Thermodynamics, Leibniz University Hannover, Hannover, Germany
| | - Xing Luo
- Institute of Thermodynamics, Leibniz University Hannover, Hannover, Germany
| | - Dejia Liu
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany; Biostabilization Laboratory, Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany
| | - Jan Hegermann
- Institute of Functional and Applied Anatomy, Research Core Unit Electron Microscopy, Hannover Medical School, Hannover, Germany
| | - Willem F Wolkers
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany; Biostabilization Laboratory, Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany
| | - Harald Sieme
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Harriëtte Oldenhof
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany.
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Warner RM, Ampo E, Nelson D, Benson JD, Eroglu A, Higgins AZ. Rapid quantification of multi-cryoprotectant toxicity using an automated liquid handling method. Cryobiology 2020; 98:219-232. [PMID: 33157080 DOI: 10.1016/j.cryobiol.2020.10.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 01/07/2023]
Abstract
Cryopreservation in a vitrified state has vast potential for long-term storage of tissues and organs that may be damaged by ice formation. However, the toxicity imparted by the high concentration of cryoprotectants (CPAs) required to vitrify these specimens remains a hurdle. To address this challenge, we previously developed a mathematical approach to design less toxic CPA equilibration methods based on the minimization of a toxicity cost function. This approach was used to design improved methods for equilibration of bovine pulmonary artery endothelial cells (BPAEC) with glycerol. To fully capitalize on the toxicity cost function approach, it is critical to describe the toxicity kinetics of additional CPAs, including multi-CPA mixtures that are commonly used for vitrification. In this work, we used automated liquid handling to characterize the toxicity kinetics of five of the most common CPAs (glycerol, dimethyl sulfoxide (DMSO), propylene glycol, ethylene glycol, and formamide), along with their binary and ternary mixtures for BPAEC. In doing so, we developed experimental methods that can be used to determine toxicity kinetics more quickly and accurately. Our results highlight some common CPA toxicity trends, including the relatively low toxicity of ethylene glycol and a general increase in toxicity as the CPA concentration increases. Our results also suggest potential new approaches to reduce toxicity, including a surprising toxicity neutralization effect of glycerol on formamide. In the future, this dataset will serve as the basis to expand our CPA toxicity model, enabling application of the toxicity cost function approach to vitrification solutions containing multiple CPAs.
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Affiliation(s)
- Ross M Warner
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - Emi Ampo
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - Dylan Nelson
- College of Pharmacy, Oregon State University, Corvallis, OR, USA
| | - James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ali Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Adam Z Higgins
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA.
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Pascolo L, Venturin I, Gianoncelli A, Bortul R, Zito G, Giolo E, Salomé M, Bedolla DE, Altissimo M, Zweyer M, Ricci G. Light element distribution in fresh and frozen–thawed human ovarian tissues: a preliminary study. Reprod Biomed Online 2018; 37:153-162. [DOI: 10.1016/j.rbmo.2018.04.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 04/18/2018] [Accepted: 04/20/2018] [Indexed: 12/20/2022]
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5
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Lopes KRF, Praxedes ECG, Campos LB, Bezerra MB, Lima GL, Saraiva MVA, Silva AR. Vitrification of ovarian tissue of Brazilian North-eastern donkeys (Equus asinus
) using different cryoprotectants. Reprod Domest Anim 2018; 53:1060-1067. [DOI: 10.1111/rda.13203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 04/04/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Kátia Regina F. Lopes
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Erica Camila G. Praxedes
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Livia B. Campos
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Marcelo B. Bezerra
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Gabriela L. Lima
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Márcia Viviane A. Saraiva
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Alexandre R. Silva
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
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Ribeiro DC, Chagas J, Bashiyo-Silva C, Costa RS, Veríssimo-Silveira R, Ninhaus-Silveira A. Oocyte viability and cortical activation under different salt solutions in Prochilodus lineatus (Teleostei: Prochilodontidae). Reprod Domest Anim 2017; 52:932-938. [PMID: 28556240 DOI: 10.1111/rda.12997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 04/07/2017] [Indexed: 11/30/2022]
Abstract
This study aimed to evaluate the effect of five salt solutions in the maintenance of morphological features of cortical alveolus, hydration and fertilization capacity of Prochilodus lineatus oocytes. For this purpose, five saline solutions were tested: Ringer's solution, Ringer's lactate solution, Hank's balanced salt solution (HBSS), Hank's balanced salt solution without calcium (HBSS without calcium) and solution for salmonid eggs. Oocytes were maintained for 2 hr in saline solution with controlled temperature subsequently evaluated for hydration, cortical activation and fertilization ability. In the evaluation of the fertilization ability, two controls were used: C1-fertilized oocytes after extrusion-and C2-oocytes kept in ovarian fluid and fertilized after 2 hr. There was a significant reduction in the viability of oocytes C2 (28.8% ± 12.9%) compared to C1 (65.3% ± 26.7%), and no significant differences were found between treatments HBSS and HBSS without calcium and C2. Only HBSS and HBSS without calcium maintained the non-activated state of the gametes, with a fertilization rate of 16.4% ± 6.7% and 5.6% ± 2.3%, respectively; however, they did not extend the viability of oocytes, such that they continued to undergo degradation during the storage period, similar to oocytes retained only in ovarian fluid.
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Affiliation(s)
- D C Ribeiro
- Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), São Paulo, Brazil
| | - Jma Chagas
- Institute of Biosciences (IBB), São Paulo State University (Unesp), São Paulo, Brazil
| | - C Bashiyo-Silva
- Institute of Biosciences (IBB), São Paulo State University (Unesp), São Paulo, Brazil.,Faculty of Engineering of Ilha Solteira (FEIS), São Paulo State University (Unesp), São Paulo, Brazil
| | - R S Costa
- Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), São Paulo, Brazil.,Faculty of Engineering of Ilha Solteira (FEIS), São Paulo State University (Unesp), São Paulo, Brazil
| | - R Veríssimo-Silveira
- Institute of Biosciences (IBB), São Paulo State University (Unesp), São Paulo, Brazil.,Faculty of Engineering of Ilha Solteira (FEIS), São Paulo State University (Unesp), São Paulo, Brazil
| | - A Ninhaus-Silveira
- Institute of Biosciences (IBB), São Paulo State University (Unesp), São Paulo, Brazil.,Faculty of Engineering of Ilha Solteira (FEIS), São Paulo State University (Unesp), São Paulo, Brazil
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7
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Advances in cryopreservation of organs. ACTA ACUST UNITED AC 2016; 36:153-161. [DOI: 10.1007/s11596-016-1559-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 03/16/2016] [Indexed: 10/22/2022]
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Herrick JR, Wang C, Machaty Z. The effects of permeating cryoprotectants on intracellular free-calcium concentrations and developmental potential of in vitro-matured feline oocytes. Reprod Fertil Dev 2016; 28:599-607. [DOI: 10.1071/rd14233] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 08/26/2014] [Indexed: 11/23/2022] Open
Abstract
Embryos produced from vitrified feline oocytes have resulted in pregnancies, but the efficiency of oocyte vitrification in cats is still low. Our objectives were to evaluate the effects of exposing feline oocytes to ethylene glycol (EG), propanediol (PrOH) and dimethyl sulfoxide (DMSO) on changes in intracellular free-calcium concentrations ([Ca2+]i), the time needed for enzymatic digestion of the zona pellucida (ZP), the incidence of parthenogenetic activation and degeneration and embryonic development following in vitro fertilisation (IVF). All of the chemicals tested altered [Ca2+]i, but changes in [Ca2+]i, resistance of the ZP to enzymatic digestion and the incidence of parthenogenetic activation (<5% for all treatments) were not affected (P > 0.05) by extracellular Ca2+. Exposure to EG (>44.1%) and DMSO (19.7%) increased (P < 0.05) oocyte degeneration compared with control oocytes and oocytes exposed to PrOH (≤2.5%). Following exposure to a combination of PrOH and DMSO (10% v/v each), blastocyst development (per cleaved embryo; 52.1%) was similar (P > 0.05) to control oocytes (64.4%). When oocytes were vitrified with PrOH and DMSO, 28.3% of surviving (intact plasma membrane) oocytes cleaved following IVF, but no blastocyst developed. When a non-permeating cryoprotectant (galactose, 0.25 M) was added to the vitrification medium, 47.7% of surviving oocytes cleaved and 14.3% developed to the blastocyst stage.
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Luz HK, Santos RR, Wanderley LS, Faustino LR, Silva CM, Carvalho AA, Campello CC, Santos FW, Figueiredo JR, Rodrigues APR. Catalase Prevents Lipid Peroxidation and Enhances Survival of Caprine Preantral Follicles Cryopreserved in a 1,2-Propanediol-Freezing Medium. Biopreserv Biobank 2012; 10:338-42. [DOI: 10.1089/bio.2011.0046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hiedely K.M. Luz
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Regiane. R. Santos
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- Laboratory of Biology and Medicine of Wild Mammals from Amazonia, Federal University of Pará, Belém, Pará, Brazil
| | - Livia S. Wanderley
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Luciana R. Faustino
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Cleidson M.G. Silva
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Adeline A. Carvalho
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Claudio C. Campello
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | | | - José R. Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Ana Paula R. Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles: LAMOFOPA, Faculty of Veterinary, State University of Ceará, Fortaleza, Ceará, Brazil
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Ultrastructural features of agouti (Dasyprocta aguti) preantral follicles cryopreserved using dimethyl sulfoxide, ethylene glycol and propanediol. Theriogenology 2012; 77:260-7. [DOI: 10.1016/j.theriogenology.2011.07.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 07/22/2011] [Accepted: 07/22/2011] [Indexed: 11/23/2022]
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Jomha NM, Weiss AD, Fraser Forbes J, Law GK, Elliott JA, McGann LE. Cryoprotectant agent toxicity in porcine articular chondrocytes. Cryobiology 2010; 61:297-302. [DOI: 10.1016/j.cryobiol.2010.10.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2010] [Revised: 09/30/2010] [Accepted: 10/04/2010] [Indexed: 11/27/2022]
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Muchlisin ZA, Azizah MNS. Influence of cryoprotectants on abnormality and motility of baung (Mystus nemurus) spermatozoa after long-term cryopreservation. Cryobiology 2008; 58:166-9. [PMID: 19114036 DOI: 10.1016/j.cryobiol.2008.11.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2008] [Revised: 10/28/2008] [Accepted: 11/28/2008] [Indexed: 10/21/2022]
Abstract
Study on the effect of cryoprotectants on abnormality and motility of baung, Mystus nemurus spermatozoa were evaluated using transmission and scanning electron microscopy. Four cryoprotectants, dmso, ethanol, methanol and glycerol at concentration of 10% were tested in triplicates. Three ml of fresh sperm which was diluted with 60 ml of ringer solution was added to each of twelve 5-ml vials containing of 0.50-ml of the cryoprotectants. The vials were placed in an icebox containing dry ice 5 min and then storage into container containing liquid nitrogen for 13 months. The effect of cryoprotectants on the spermatozoa abnormality and motility were significant (P<0.05). The spermatozoa abnormality was significantly lower in methanol (62.65%) compared with the other cryoprotectants. The spermatozoa motility was higher in methanol, but not significantly different with ethanol (P>0.05). It is a negative correlation between sperm motility and abnormality. Generally, higher abnormalities of spermatozoa resulted low motility.
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Affiliation(s)
- Z A Muchlisin
- Department of Marine Sciences, Faculty of Sciences Syiah Kuala University, Kopelma Darussalam, Banda Aceh, NAD 23111, Indonesia.
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