Article
Biochemistry & Molecular Biology
Miira M. M. Klemetti, Sruthi Alahari, Martin Post, Isabella Caniggia
Summary: Disturbances in lipid metabolism are common in diabetes. This study compared the placental sphingolipid metabolism in type 1 and type 2 diabetic pregnancies and non-diabetic controls. The results showed that placental ceramide levels were lower in diabetic pregnancies, but higher in cases of preeclampsia and poor glycemic control. Sphingosine kinases (SPHK) and sphingoid-1-phosphates (S1P) were elevated in diabetic pregnancies, especially in cases of fetal macrosomia.
Article
Peripheral Vascular Disease
Francesca Gaccioli, Ulla Sovio, Sungsam Gong, Emma Cook, D. Stephen Charnock-Jones, Gordon C. S. Smith
Summary: This study aimed to investigate the relationship between protein levels of sFLT1 and PlGF in maternal serum and placental tissue lysates. The findings showed that the sFLT1:PlGF ratio is increased in both preeclampsia and FGR, but in preeclampsia, it is primarily driven by increased placental sFLT1 levels, while in FGR, it is primarily driven by decreased placental PlGF levels.
Article
Biochemistry & Molecular Biology
Faith Andres, Natalie J. Hannan, Susan P. Walker, Teresa M. MacDonald, Georgia P. Wong, Ciara Murphy, Ping Cannon, Manju Kandel, Joshua Masci, Tuong-Vi Nguyen, Alison Abboud, Danica Idzes, Valerie Kyritsis, Natasha Pritchard, Stephen Tong, Tuuhevaha J. Kaituu-Lino
Summary: This study found that EPCR levels were significantly increased in both the placenta and circulation of patients with preterm preeclampsia and fetal growth restriction. Hypoxia may be associated with the elevation of placental EPCR. These findings have important implications for understanding the mechanisms underlying these conditions.
Article
Pharmacology & Pharmacy
Zongli Ren, Ning Cui, Minglin Zhu, Raouf A. Khalil
Summary: The study suggests that placental ischemia-induced proinflammatory cytokines may be one of the causes of preeclampsia. Modulating cytokines and metalloproteinases can improve vascular and uteroplacental remodeling, alleviating symptoms of preeclampsia.
BIOCHEMICAL PHARMACOLOGY
(2021)
Article
Cardiac & Cardiovascular Systems
Jiajia Jin, Liaomei Gao, Xiuli Zou, Yun Zhang, Zhijian Zheng, Xinjie Zhang, Jiaxuan Li, Zhenyu Tian, Xiaowei Wang, Junfei Gu, Cheng Zhang, Tiejun Wu, Zhe Wang, Qunye Zhan
Summary: The study revealed gut microbiota dysbiosis in preeclamptic patients, with reductions in specific bacteria and short-chain fatty acids. Experiments on preeclamptic rats showed that gut microbiota from healthy pregnant women had protective effects, while specific microbes and metabolites could alleviate preeclampsia symptoms.
CIRCULATION RESEARCH
(2022)
Article
Developmental Biology
Fatma Simsek, Ezgi Turunc, Elif Keskin-Arslan, Hilal Erol, Selin Acar, Bahar Konuralp Atakul, Serpil Aydogmus, Tijen Temiz
Summary: This study aimed to investigate the differences in endothelin-1 (ET-1) levels in placenta, umbilical cord, and maternal blood in patients with preeclampsia (PE) and to understand the changes in umbilical artery contraction response. The results showed higher levels of ET-1 expression and lower levels of miR-125b expression in the placenta of the PE group compared to the control group. Additionally, the PE group exhibited changes in the morphology of umbilical cord vessels. However, there were no significant differences in ET-1 responses between the groups in the tissue bath experiments.
Article
Biochemistry & Molecular Biology
Adrian C. Eddy, Chun Yi Chiang, Augustine Rajakumar, Frank T. Spradley, Patricia Dauer, Joey P. Granger, Sarosh Rana
Summary: Preeclampsia is a dangerous complication of pregnancy that can lead to maternal death and long-term complications. This study aimed to find new compounds to reduce placental sFlt-1 and discovered that luteolin showed the most potent inhibition of sFlt-1 release, with over 95% reduction. Luteolin was found to reduce sFlt-1 through inhibition of HIF-1 alpha, possibly via the Akt pathway.
Article
Radiology, Nuclear Medicine & Medical Imaging
Christina. L. L. Herrera, Yiming Wang, Durga Udayakumar, Yin Xi, Quyen. N. N. Do, Matthew. A. A. Lewis, David. M. M. Owen, Baowei Fei, Catherine. Y. Y. Spong, Diane. M. M. Twickler, Ananth. J. J. Madhuranthakam
Summary: This study evaluates placental perfusion in normal pregnancies and pregnancies affected by chronic hypertension using pseudo-continuous arterial spin-labeled (pCASL) MRI. The results show a decline in placental perfusion in the second trimester of normal pregnancies, while it remained unchanged in cHTN pregnancies. Additionally, significantly lower placental perfusion was observed in pregnancies with infants that were small for gestational age. Therefore, pCASL-MRI-measured perfusion may serve as an effective imaging biomarker for placental insufficiency.
EUROPEAN RADIOLOGY
(2023)
Review
Obstetrics & Gynecology
Lingli Li, Luping Liu, YuYue Xu
Summary: A meta-analysis explored the potential relationship between hypertensive disease during pregnancy and placenta accreta, finding that hypertensive disease during pregnancy was associated with a lower prevalence of placenta accreta.
REPRODUCTIVE SCIENCES
(2022)
Article
Peripheral Vascular Disease
Brooke Grimaldi, Hamid-Reza Kohan-Ghadr, Chidambra D. Halari, Pinki Nandi, John C. Kingdom, Sascha Drewlo
Summary: Activation of PPAR gamma in the preeclampsia placenta promotes cell growth and antioxidative stress pathways. Rosiglitazone restores HO1 signaling in a PPAR gamma-dependent manner, offering a potential therapeutic pathway to reverse placental damage and reduce maternal sequelae. Future research should focus on understanding impaired PPAR gamma signaling in the human placenta and identifying safe compounds for preventing severe perinatal morbidity and mortality.
Article
Peripheral Vascular Disease
Rugina Neuman, Milan D. Baars, Langeza Saleh, Michelle Broekhuizen, Daan Nieboer, Jerome Cornette, Sam Schoenmakers, Michel Verhoeven, Birgit C. P. Koch, Henk Russcher, Sjoerd A. A. van den Berg, Anton H. van den Meiracker, Willy Visser, A. H. Jan Danser
Summary: This study investigated the effect of the proton pump inhibitor omeprazole on circulating levels of sFlt-1, PlGF, and ET-1 in women with confirmed preeclampsia. The results showed that omeprazole did not alter these levels, suggesting that it is not a suitable treatment for this syndrome.
Review
Pharmacology & Pharmacy
Jingjing Xu, Xiaohua Jiang, Suowen Xu
Summary: Hypertension is a global epidemic and resistant hypertension affects 15% of patients despite antihypertensive medication. Endothelin-1 plays a crucial role in blood pressure regulation and recent research highlights the potential of aprocitentan, a dual endothelin-1 receptor antagonist, in lowering blood pressure in individuals with resistant hypertension.
DRUG DISCOVERY TODAY
(2023)
Article
Cell Biology
Sandra M. Blois, Paula D. Prince, Sophia Borowski, Monica Galleano, Gabriela Barrientos
Summary: Utilizing the SHRSP model, this study investigated placental mechanisms promoting superimposed preeclampsia in women with chronic hypertension. The findings revealed sustained activation of cellular stress response in SHRSP placentas, leading to redox imbalance and significant alterations in placental glycocode. The study highlights the potential role of glycoredox balance as a promising target for interventions in hypertensive disorders of pregnancy.
Article
Biochemistry & Molecular Biology
Adrian C. C. Eddy, Chun Yi Chiang, Augustine Rajakumar, Frank T. T. Spradley, Patricia Dauer, Joey P. P. Granger, Sarosh Rana
Summary: Preeclampsia is a serious complication of pregnancy that can lead to maternal death and long-term complications. This study aimed to identify new compounds that can reduce sFlt-1 and inhibit HIF-1a, a prohypertensive factor. The natural compound luteolin showed the strongest inhibition of sFlt-1 release, with over 95% reduction compared to the control group. Luteolin also reduced HIF-1a expression through the Akt pathway. This makes luteolin a potential novel treatment for preeclampsia.
Article
Biochemistry & Molecular Biology
Charles Megier, Katell Peoc'h, Vincent Puy, Anne-Gael Cordier
Summary: Iron and heme metabolism in normal and pathological pregnancies, particularly the impact on placental iron metabolism and the effects of iron deficiency and hemoglobin diseases on the placenta and development, are reviewed in this article.
Article
Cardiac & Cardiovascular Systems
Bailin Liu, Xiangqun Hu, Yong Li, Jun Ke, Chiranjib Dasgupta, Xiaohui Huang, Andrew Walayat, Lubo Zhang, Daliao Xiao
INTERNATIONAL JOURNAL OF CARDIOLOGY
(2019)
Article
Immunology
Bo Li, Chiranjib Dasgupta, Lei Huang, Xianmei Meng, Lubo Zhang
CELLULAR & MOLECULAR IMMUNOLOGY
(2020)
Article
Cell Biology
Sebastien Bonnet, Olivier Boucherat, Roxane Paulin, Danchen Wu, Charles C. T. Hindmarch, Stephen L. Archer, Rui Song, Joseph B. Moore, Steeve Provencher, Lubo Zhang, Shizuka Uchida
AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY
(2020)
Article
Multidisciplinary Sciences
Xin Chen, Lubo Zhang, Charles Wang
Article
Cardiac & Cardiovascular Systems
Rui Song, Xiang-Qun Hu, Monica Romero, Mark A. Holguin, Whitney Kagabo, Daliao Xiao, Sean M. Wilson, Lubo Zhang
Summary: Pregnancy increases the association of BKCa channel subunits and alters the localization of RyR subtypes in uterine arteries. Knockdown of RyR1 or RyR2 decreases Ca2+ sparks and STOCs frequency, increases myogenic tone, while RyR3 knockdown has no significant effect. This study provides new insights into the mechanisms of uterine vascular adaptation to pregnancy through RyR subtypes.
CARDIOVASCULAR RESEARCH
(2021)
Review
Biochemistry & Molecular Biology
Rui Song, Lubo Zhang
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2020)
Review
Biochemistry & Molecular Biology
Xiang-Qun Hu, Lubo Zhang
Summary: Hypoxia during gestation has significant impacts on maternal complications and fetal development. Mitochondrial ROS play a key role in placental dysfunction and pregnancy complications. Therapeutic approaches targeting mitochondrial ROS in placental cells are discussed for potential treatment strategies.
Article
Biochemistry & Molecular Biology
Guofang Shen, Shirley Hu, Zhen Zhao, Lubo Zhang, Qingyi Ma
Summary: CNP plays a vascular protective role in neonatal brain injury by reducing brain infarct size, decreasing brain edema and IgG extravasation, and protecting BMECs against oxygen-glucose deprivation. The vasculoprotective effect of CNP is mediated by its innate receptors NPR2 and NPR3, indicating a potential therapeutic target for neonatal brain injury.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Biochemistry & Molecular Biology
Xiangqun Hu, Lubo Zhang
Summary: During pregnancy, uteroplacental blood flow increases, which is crucial for the well-being of both the mother and the growth/development of the fetus. This hemodynamic change is primarily achieved through uterine vascular adaptation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Biochemistry & Molecular Biology
Yajie Tong, Shuqing Zhang, Suzette Riddle, Lubo Zhang, Rui Song, Dongmei Yue
Summary: Intrauterine hypoxia can affect lung cell epigenome, leading to developmental issues and increased risk of diseases in the lungs.
Article
Biochemistry & Molecular Biology
Yong Li, Yanyan Zhang, Andrew Walayat, Yingjie Fu, Bailin Liu, Lubo Zhang, Daliao Xiao
Summary: Nicotine exposure during the perinatal period can induce a sensitive phenotype to neonatal brain hypoxic-ischemic injury in offspring. The H19/miR-181a/ATG5 signaling pathway plays a regulatory role in this process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Taiming Liu, Meijuan Zhang, Avoumia Mourkus, Hobe Schroeder, Lubo Zhang, Gordon G. Power, Arlin B. Blood
Summary: Chronic hypoxia at high altitude alters iron homeostasis and bioactive nitric oxide metabolites (NOx) levels in the fetal circulation. The fetus utilizes iron from non-hematopoietic tissues for erythropoiesis and shows increased bioavailability of NO in response to hypoxic stress at high altitude during gestation.
Article
Biochemistry & Molecular Biology
Eugenia Mata-Greenwood, Hans C. A. Westenburg, Stacy Zamudio, Nicholas P. Illsley, Lubo Zhang
Summary: High-altitude residence negatively impacts vitamin D levels, with Andeans having the lowest 25-OH-D levels and Europeans having the lowest 1 alpha,25-(OH)(2)-D levels. The ratio of 1 alpha,25-(OH)(2)-D to 25-OH-D is significantly lower in Europeans compared to Andeans. Placental gene expression plays a major role in circulating vitamin D levels, and high-altitude residents have a stronger correlation between vitamin D levels and placental gene expression.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Medicine, General & Internal
Andrew J. Patterson, Minwoo A. Song, David Choe, Daliao Xiao, Gary Foster, Lubo Zhang
Article
Biochemistry & Molecular Biology
Peng Zhang, Yong Li, Yingjie Fu, Lei Huang, Bailin Liu, Lubo Zhang, Xuesi M. Shao, Daliao Xiao
INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES
(2020)