1
|
Fortier J, Pang S, Schutte S, Zumberg MS, Rajasekhar A. Use of cell salvage and HBOC-201 in a pregnant Jehovah's Witness with sickle beta+thalassaemia undergoing emergency caesarean section. BMJ Case Rep 2022; 15:e251368. [PMID: 36396327 PMCID: PMC9676994 DOI: 10.1136/bcr-2022-251368] [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] [Indexed: 11/19/2022] Open
Abstract
Patients with severe anaemia who refuse or cannot safely receive red cell transfusion present challenges during pregnancy, delivery and the postpartum period. Strategies including HBOC-201 (Hemopure) and intraoperative use of cell salvage have been used in non-pregnant patients to improve oxygen carrying capacity; however, these products pose unique risks in pregnant patients, those with sickle cell disease (SCD) and those undergoing caesarean section (C-section). We describe a case of a pregnant sickle beta+thalasasaemia patient who presented at 27 weeks gestation with pre-eclampsia and severe anaemia. As a Jehovah's Witness, she declined allogenic blood transfusion. The patient successfully underwent emergent C-section with cell salvage and received HBOC-201 immediately after delivery, during the operative procedure. To our knowledge, this is the first published report documenting a Jehovah's Witness patient with SCD who successfully received cell salvage and then HBOC-201 immediately postdelivery.
Collapse
Affiliation(s)
- Julia Fortier
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Shiyi Pang
- Department of Medicine, Division of Hematology/Oncology, University of Florida, Gainesville, FL, USA
| | - Soleil Schutte
- Department of Anesthesiology, University of Florida, Gainesville, FL, USA
| | - Marc Stuart Zumberg
- Department of Medicine, Division of Hematology/Oncology, University of Florida, Gainesville, FL, USA
| | - Anita Rajasekhar
- Department of Medicine, Division of Hematology/Oncology, University of Florida, Gainesville, FL, USA
| |
Collapse
|
2
|
Furukawa S, Tsuji N, Sugiyama A. Morphology and physiology of rat placenta for toxicological evaluation. J Toxicol Pathol 2018; 32:1-17. [PMID: 30739991 PMCID: PMC6361663 DOI: 10.1293/tox.2018-0042] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 09/04/2018] [Indexed: 12/18/2022] Open
Abstract
The placenta plays a pivotal role in fetal growth, and placental dysfunction and injury are associated with embryo/fetal toxicity. Histological examination of the rat placenta for safety evaluation provides valuable clues to the mechanisms of this toxicity. However, the placenta has specific and complex biological features unlike those of other organs, and placental structure dramatically changes depending on the time during the gestation period. Thus, time-dependent histopathological examination of the rat placenta should be performed based on the understanding of normal developmental changes in morphology and function. The placentas of rats and humans are both anatomically classified as discoid and hemochorial types. However, there are differences between rats and humans in terms of placental histological structure, the fetal-maternal interface, and the function of the yolk sac. Therefore, extrapolation of placental toxicity from rats to humans should be done cautiously in the evaluation of risk factors. This review describes the development, morphology, physiology, and toxicological features of the rat placenta and the differences between the rat and human placenta to enable accurate evaluation of reproductive and developmental toxicity in studies.
Collapse
Affiliation(s)
- Satoshi Furukawa
- Biological Research Laboratories, Nissan Chemical Corporation, 1470 Shiraoka, Shiraoka-shi, Saitama 349-0294, Japan
| | - Naho Tsuji
- Biological Research Laboratories, Nissan Chemical Corporation, 1470 Shiraoka, Shiraoka-shi, Saitama 349-0294, Japan
| | - Akihiko Sugiyama
- Veterinary Clinical Pathology, Faculty of Veterinary Medicine Okayama University of Science, 1-3 Ikoinooka, Imabari, Ehime794-8555, Japan
| |
Collapse
|
3
|
Wu M, Feng K, Li Q, Ma H, Zhu H, Xie Y, Yan G, Chen C, Yan K. Glutaraldehyde-polymerized hemoglobin and tempol (PolyHb-tempol) has superoxide dismutase activity that can attenuate oxidative stress on endothelial cells induced by superoxide anion. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:47-55. [PMID: 28521553 DOI: 10.1080/21691401.2017.1328685] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A Tempol compound with an amine group (4-amino-2,2,6,6-tetramethylpiperidine-1-oxyl, NH2-Tempol) was cross-linked to hemoglobin in a one-step polymerization reaction to produce a novel hemoglobin-based oxygen carrier (HBOC) designated PolyHb-Tempol. The reaction parameters, including the reaction time, pH, temperature, and ratio of reactants, were optimized, and the physiochemical properties of the resulting product were characterized. PolyHb-Tempol didn't show any toxicity towards endothelial cells. Furthermore, from observations of cell morphology and viability, PolyHb-Tempol showed a significant ability to inhibit or eliminate oxidative stress induced by superoxide free radicals. These results suggest that PolyHb-Tempol may potentially be suitable as an HBOC.
Collapse
Affiliation(s)
- Mengdi Wu
- a College of Life Science , Northwest University , Xi'an , P.R. China
| | - Kun Feng
- a College of Life Science , Northwest University , Xi'an , P.R. China
| | - Qiuhui Li
- a College of Life Science , Northwest University , Xi'an , P.R. China
| | - Huiya Ma
- a College of Life Science , Northwest University , Xi'an , P.R. China
| | - Hongli Zhu
- a College of Life Science , Northwest University , Xi'an , P.R. China.,b National Engineering Research Center for Miniaturized Detection System , Xi'an , P.R. China
| | - Yudou Xie
- c Shaanxi Lifegen Co., Ltd. , Xi'an , P.R. China
| | - Gaofei Yan
- c Shaanxi Lifegen Co., Ltd. , Xi'an , P.R. China
| | - Chao Chen
- a College of Life Science , Northwest University , Xi'an , P.R. China.,b National Engineering Research Center for Miniaturized Detection System , Xi'an , P.R. China
| | - Kunping Yan
- a College of Life Science , Northwest University , Xi'an , P.R. China.,b National Engineering Research Center for Miniaturized Detection System , Xi'an , P.R. China
| |
Collapse
|
4
|
Furukawa S, Tsuji N, Kobayashi Y, Yamagishi Y, Hayashi S, Abe M, Kuroda Y, Kimura M, Hayakawa C, Sugiyama A. Effect of dibutyltin on placental and fetal toxicity in rat. J Toxicol Sci 2017; 42:741-753. [DOI: 10.2131/jts.42.741] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Satoshi Furukawa
- Biological Research Laboratories, Nissan Chemical Industries, Ltd
| | - Naho Tsuji
- Biological Research Laboratories, Nissan Chemical Industries, Ltd
| | | | | | - Seigo Hayashi
- Biological Research Laboratories, Nissan Chemical Industries, Ltd
| | - Masayoshi Abe
- Biological Research Laboratories, Nissan Chemical Industries, Ltd
| | - Yusuke Kuroda
- Biological Research Laboratories, Nissan Chemical Industries, Ltd
| | - Masayuki Kimura
- Biological Research Laboratories, Nissan Chemical Industries, Ltd
| | - Chisato Hayakawa
- Biological Research Laboratories, Nissan Chemical Industries, Ltd
| | - Akihiko Sugiyama
- Courses of Veterinary Laboratory Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University
| |
Collapse
|
5
|
Developmental toxicity of engineered nanomaterials in rodents. Toxicol Appl Pharmacol 2015; 299:47-52. [PMID: 26721308 DOI: 10.1016/j.taap.2015.12.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 12/10/2015] [Accepted: 12/21/2015] [Indexed: 01/12/2023]
Abstract
We summarized significant effects reported in the literature on the developmental toxicity of engineered nanomaterials (ENMs) in rodents. The developmental toxicity of ENMs included not only structural abnormalities, but also death, growth retardation, and behavioral and functional abnormalities. Most studies were performed on mice using an injection route of exposure. Teratogenic effects were indicated when multi-walled carbon nanotubes (MWCNTs), single-walled carbon nanotubes (SWCNTs), and TiO2-nanoparticles were administered to mice during early gestation. Reactive oxygen species levels were increased in placentas and malformed fetuses and their placentas after prenatal exposure to MWCNTs and SWCNTs, respectively. The pre- and postnatal mortalities and growth retardation in offspring increased after prenatal exposure to ENMs. Histopathological and functional abnormalities were also induced in placentas after prenatal exposure to ENMs. Maternal exposure to ENMs induced behavioral alterations, histopathological and biochemical changes in the central nervous system, increased susceptibility to allergy, transplacental genotoxicity, and vascular, immunological, and reproductive effects in offspring. The size- and developmental stage-dependent placental transfer of ENMs was noted after maternal exposure. Silver accumulated in the visceral yolk sac after being injected with Ag-NPs during early gestation. Although currently available data has provided initial information on the potential developmental toxicity of ENMs, that on the developmental toxicity of ENMs is still very limited. Further studies using well-characterized ENMs, state-of the-art study protocols, and appropriate routes of exposure are required in order to clarify these developmental effects and provide information suitable for risk assessments of ENMs.
Collapse
|