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Lai S, Yu W, Liu Y, Yang Y, Zhang X. Current research and evidence gaps on placental development in iron deficiency anemia. Open Life Sci 2024; 19:20220827. [PMID: 38465334 PMCID: PMC10921475 DOI: 10.1515/biol-2022-0827] [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: 10/10/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 03/12/2024] Open
Abstract
Studying the effects of maternal iron deficiency anemia (IDA) is complex owing to its diverse causes, each independently impacting the placenta and fetus. Simple treatment with iron supplements does not always resolve the anemia. Therefore, delving into how IDA alters placental development at a molecular level is crucial to further optimize treatment. This review addresses the effects of IDA on placental structures and functions, including changes in oxygen levels, blood vessels, and the immune system. Profound understanding of physiological characteristics and regulatory mechanisms of placental development is key to explain the mechanisms of abnormal placental development in pregnancy-associated disorders. In turn, future strategies for the prevention and treatment of pregnancy complications involving the placenta can be devised. These studies are significant for improving human reproductive health, enhancing sociodemographic qualities, and even lifelong wellbeing, a focal point in future placental research.
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Affiliation(s)
- Shaoyang Lai
- Department of Obstetrics, School of Medicine, Women and Children’s Hospital, Xiamen University, Xiamen, China
| | - Weiwei Yu
- Department of Obstetrics, School of Medicine, Women and Children’s Hospital, Xiamen University, Xiamen, China
| | - Ying Liu
- Department of Obstetrics, School of Medicine, Women and Children’s Hospital, Xiamen University, Xiamen, China
| | - Yuxin Yang
- Department of Obstetrics, School of Medicine, Women and Children’s Hospital, Xiamen University, Xiamen, China
| | - Xueqin Zhang
- Department of Obstetrics, School of Medicine, Women and Children’s Hospital, Xiamen University, Xiamen, China
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Kimura N, Nakamura M, Takagi R, Mieno MN, Yamaguchi A, Czerny M, Beyersdorf F, Kari FA, Rylski B. False lumen/true lumen wall pressure ratio is increased in acute non-A non-B aortic dissection. Interact Cardiovasc Thorac Surg 2022; 35:6585342. [PMID: 35552699 PMCID: PMC9486891 DOI: 10.1093/icvts/ivac138] [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: 04/11/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
OBJECTIVES
We aimed to determine whether non-A non-B aortic dissection (AD) differs in morphologic and haemodynamic properties from type B AD.
METHODS
We simulated and compared haemodynamics of patients with acute type B or acute non-A non-B AD by means of computational fluid dynamics. Wall pressure and wall shear stress (WSS) in both the true lumen (TL) and false lumen (FL) at early, mid- and late systole were evaluated. Morphology, WSS and the FL/TL wall pressure ratio were compared between groups.
RESULTS
Nineteen patients (type B, n = 7; non-A non-B, n = 12) were included. The median age (51 [46, 67] vs 53 [50, 63] years; P = 0.71) and a complicated course (14% vs 33%; P = 0.6) did not differ between the type B group and the non-A non-B group. However, the median entry tear width was increased in the non-A non-B group (9.7 [7.3, 12.7] vs 16.3 [11.9, 24.9] mm; P = 0.010). Streamlines showed, in patients with non-A non-B AD, blood from the TL flowed into the FL via the entry tear. Prevalence of a FL/TL wall pressure ratio >1.0 (type B versus non-A non-B) at early, mid- and late systole was 57% vs 83% (P = 0.31), 43% vs 83% (P = 0.13) and 57% vs 75% (P = 0.62), respectively. WSS did not differ between the groups.
CONCLUSIONS
The increased FL/TL wall pressure ratio observed during systole in non-A non-B AD may beget a complicated presentation.
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Affiliation(s)
- Naoyuki Kimura
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University , Saitama, Japan
| | - Masanori Nakamura
- Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology , Nagoya, Japan
| | - Reiya Takagi
- Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology , Nagoya, Japan
| | - Makiko Naka Mieno
- Department of Medical Informatics, Center for Information, Jichi Medical University , Shimotsuke, Japan
| | - Atsushi Yamaguchi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University , Saitama, Japan
| | - Martin Czerny
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
| | - Friedhelm Beyersdorf
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
| | - Fabian Alexander Kari
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
| | - Bartosz Rylski
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
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