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Zou XF, Wu SH, Ma JG, Yin ZQ, Hu ZD, Wang YW, Yang J, Guo RD. 3-O-Methyl-D-Glucose Blunts Cold Ischemia Damage in Kidney via Inhibiting Ferroptosis. Biomed Pharmacother 2024; 173:116262. [PMID: 38394845 DOI: 10.1016/j.biopha.2024.116262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/20/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND The glucose derivative 3-O-methyl-D-glucose (OMG) is used as a cryoprotectant in freezing cells. However, its protective role and the related mechanism in static cold storage (CS) of organs are unknown. The present study aimed to investigate the effect of OMG on cod ischemia damage in cold preservation of donor kidney. METHODS Pretreatment of OMG on kidney was performed in an isolated renal cold storage model in rats. LDH activity in renal efflux was used to evaluate the cellular damage. Indicators including iron levels, mitochondrial damage, MDA level, and cellular apoptosis were measured. Kidney quality was assessed via a kidney transplantation (KTx) model in rats. The grafted animals were followed up for 7 days. Ischemia reperfusion (I/R) injury and inflammatory response were assessed by biochemical and histological analyses. RESULTS OMG pretreatment alleviated prolonged CS-induced renal damage as evidenced by reduced LDH activities and tubular apoptosis. Kidney with pCS has significantly increased iron, MDA, and TUNEL+ cells, implying the increased ferroptosis, which has been partly inhibited by OMG. OMG pretreatment has improved the renal function (p <0.05) and prolonged the 7-day survival of the grafting recipients after KTx, as compared to the control group. OMG has significantly decreased inflammation and tubular damage after KTx, as evidenced by CD3-positive cells and TUNEL-positive cells. CONCLUSION Our study demonstrated that OMG protected kidney against the prolonged cold ischemia-caused injuries through inhibiting ferroptosis. Our results suggested that OMG might have potential clinical application in cold preservation of donor kidney.
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Affiliation(s)
- Xun-Feng Zou
- Department of General Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Shao-Hua Wu
- Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Jian-Gong Ma
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhi-Qi Yin
- Department of Pathology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Zhan-Dong Hu
- Department of Pathology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Yi-Wei Wang
- Department of General Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Jie Yang
- University hospital, Tianjin Normal University, Tianjin 300192, China
| | - Ren-De Guo
- Department of General Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China.
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Machine learning and hypothesis driven optimization of bull semen cryopreservation media. Sci Rep 2022; 12:22328. [PMID: 36567337 PMCID: PMC9790888 DOI: 10.1038/s41598-022-25104-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 11/24/2022] [Indexed: 12/26/2022] Open
Abstract
Cryopreservation provides a critical tool for dairy herd genetics management. Due to widely varying inter- and within-bull post thaw fertility, recent research on cryoprotectant extender medium has not dramatically improved suboptimal post-thaw recovery in industry. This progress is stymied by the interactions between samples and the many components of extender media and is often compounded by industry irrelevant sample sizes. To address these challenges, here we demonstrate blank-slate optimization of bull sperm cryopreservation media by supervised machine learning. We considered two supervised learning models: artificial neural networks and Gaussian process regression (GPR). Eleven media components and initial concentrations were identified from publications in bull semen cryopreservation, and an initial 200 extender-post-thaw motility pairs were used to train and 32 extender-post-thaw motility pairs to test the machine learning algorithms. The median post-thaw motility after coupling differential evolution with GPR the increased from 52.6 ± 6.9% to 68.3 ± 6.0% at generations 7 and 17 respectively, with several media performing dramatically better than control media counterparts. This is the first study in which machine learning was used to determine the best combination of constituents to optimize bull sperm cryopreservation media, and provides a template for optimization in other cell types.
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Sharafi M, Blondin P, Vincent P, Anzar M, Benson JD. Hydroxytyrosol and resveratrol improves kinetic and flow cytometric parameters of cryopreserved bull semen with low cryotolerance. Anim Reprod Sci 2022; 245:107065. [PMID: 36115090 DOI: 10.1016/j.anireprosci.2022.107065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/15/2022]
Abstract
There is considerable interest in breeding programs to "rescue" semen with poor post-thaw fertility from bulls known as "bad freezers". We hypothesized that there may be an interaction between the post-thaw recovery of sperm and the efficacy of antioxidant addition to extenders. The current study assesses the effects of antioxidant additives hydroxytyrosol (HT) and resveratrol (RSV) on the post-thaw semen parameters in two groups of bulls classified as either high or low cryotolerant (i.e., "good" and "bad" freezers). Semen samples were collected from 40 bulls and processed in the extenders containing different concentrations of HT (experiment 1; 0, 25 and 50 µM) and RSV (experiment 2; 0.0, 0.01, 0.1 and 1 mM). In experiment 1, bulls in the low cryotolerance group had a significant improvement in post-thaw recovery at 25 µM and 50 µM (P < 0.05). These improvements were observed in motility and several cellular parameters. However, post-thaw semen quality in the high cryotolerance group was not significantly affected by the HT addition. In experiment 2, although RSV did not have any positive impact in high cryotolerance group, post-thaw recovery in the low cryotolerance bulls was significantly improved in 0.1 mM RSV. Oxidative stress markers in either high or low cryotolerance groups were not significantly changed by RSV addition (P > 0.05). It can be concluded that addition of optimized concentrations of HT and RSV to the extender could be a strategy for improving the post-thaw semen, especially in bulls with high genetic merit but low initial cryotolerance.
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Affiliation(s)
- Mohsen Sharafi
- Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | | | | | - Muhammad Anzar
- Agriculture and AgriFood Canada, Saskatoon Research and Development Center, and Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
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Ma L, Kim DH, Jung EJ, Lee WJ, Hwang JM, Bae JW, Jung DJ, Yi JK, Lee SM, Ha JJ, Kwon WS. Effect of glycerol addition time on the cryopreserved Korean native brindle cattle (Chikso) sperm quality. Anim Reprod 2022; 19:e20210058. [PMID: 35432606 PMCID: PMC9000158 DOI: 10.1590/1984-3143-ar2021-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 02/07/2022] [Indexed: 12/02/2022] Open
Abstract
Although cryopreservation is an efficient method for maintaining the biological and genetic resources of sperm, the sperm damage during the cryopreservation process cannot be ignored. It should be possible to obtain the most effective cryopreservation performance by accurately grasping the effects of various factors on the cryopreservation of sperm. The previous study demonstrated that a suitable standard protocol for cryopreservation of Korean native brindled cattle (Chikso) does not exist, based on the methods for semen cryopreservation of Chikso differ in each research center. The most obvious difference between most of protocols is the addition of glycerol before and after cooling during the Chikso cryopreserved semen process. Therefore we focused on the effects of glycerol addition time on the quality of cryopreserved Chikso sperm. In the present study, 27 individual Chikso samples were collected by transrectal massage and divided into two parts: the “cryopreservation method A” group (adding glycerol before cooling) and the “cryopreservation method B” group (adding glycerol after cooling). Meanwhile, the values of various sperm parameters were derived from each group, including sperm motility, kinematics, capacitation status, cell viability, and intracellular ATP levels, which we used to compare and evaluate sperm function. The results of this study indicated that during the semen cryopreservation process of the Chikso, the addition of glycerol after cooling yielded superior results in a variety of sperm parameters, such as sperm motility, progressive motility, rapid motility, VCL, VSL, VAP, ALH, capacitation status, viability, and intracellular ATP level after freezing and thawing. Our study is suggested that the glycerol addition time during the cryopreservation process for Chikso should be considered. In addition, our results may be provided reference to develop suitable the cryopreservation procedure of the Chikso sperm.
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Affiliation(s)
- Lei Ma
- Kyungpook National University, Republic of Korea
| | - Dae-Hyun Kim
- Gyeongbuk Livestock Research Institute, Republic of Korea
| | - Eun-Ju Jung
- Kyungpook National University, Republic of Korea
| | - Woo-Jin Lee
- Kyungpook National University, Republic of Korea
| | - Ju-Mi Hwang
- Kyungpook National University, Republic of Korea
| | | | - Dae-Jin Jung
- Gyeongbuk Livestock Research Institute, Republic of Korea
| | - Jun Koo Yi
- Gyeongbuk Livestock Research Institute, Republic of Korea
| | - Sang Moo Lee
- Kyungpook National University, Republic of Korea
| | - Jae Jung Ha
- Gyeongbuk Livestock Research Institute, Republic of Korea
| | - Woo-Sung Kwon
- Kyungpook National University, Republic of Korea; Kyungpook National University, Republic of Korea
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Gallichotte EN, Dobos KM, Ebel GD, Hagedorn M, Rasgon JL, Richardson JH, Stedman TT, Barfield JP. Towards a method for cryopreservation of mosquito vectors of human pathogens. Cryobiology 2021; 99:1-10. [PMID: 33556359 DOI: 10.1016/j.cryobiol.2021.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/23/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Mosquito-borne diseases are responsible for millions of human deaths every year, posing a massive burden on global public health. Mosquitoes transmit a variety of bacteria, parasites and viruses. Mosquito control efforts such as insecticide spraying can reduce mosquito populations, but they must be sustained in order to have long term impacts, can result in the evolution of insecticide resistance, are costly, and can have adverse human and environmental effects. Technological advances have allowed genetic manipulation of mosquitoes, including generation of those that are still susceptible to insecticides, which has greatly increased the number of mosquito strains and lines available to the scientific research community. This generates an associated challenge, because rearing and maintaining unique mosquito lines requires time, money and facilities, and long-term maintenance can lead to adaptation to specific laboratory conditions, resulting in mosquito lines that are distinct from their wild-type counterparts. Additionally, continuous rearing of transgenic lines can lead to loss of genetic markers, genes and/or phenotypes. Cryopreservation of valuable mosquito lines could help circumvent these limitations and allow researchers to reduce the cost of rearing multiple lines simultaneously, maintain low passage number transgenic mosquitoes, and bank lines not currently being used. Additionally, mosquito cryopreservation could allow researchers to access the same mosquito lines, limiting the impact of unique laboratory or field conditions. Successful cryopreservation of mosquitoes would expand the field of mosquito research and could ultimately lead to advances that would reduce the burden of mosquito-borne diseases, possibly through rear-and-release strategies to overcome mosquito insecticide resistance. Cryopreservation techniques have been developed for some insect groups, including but not limited to fruit flies, silkworms and other moth species, and honeybees. Recent advances within the cryopreservation field, along with success with other insects suggest that cryopreservation of mosquitoes may be a feasible method for preserving valuable scientific and public health resources. In this review, we will provide an overview of basic mosquito biology, the current state of and advances within insect cryopreservation, and a proposed approach toward cryopreservation of Anopheles stephensi mosquitoes.
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Affiliation(s)
- Emily N Gallichotte
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Karen M Dobos
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Gregory D Ebel
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Mary Hagedorn
- Smithsonian Conservation Biology Institute, Smithsonian Institution, Front Royal, VA, USA; Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI, USA
| | - Jason L Rasgon
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA; Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA, USA; Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA
| | | | | | - Jennifer P Barfield
- Department of Biomedical Sciences, Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, CO, USA.
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