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preeclampsia etiology

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https://www.readbyqxmd.com/read/28340831/pregnancy-and-delivery-in-the-sequel-of-kidney-transplantation-single-center-study-of-8-years-experience
#1
Y Yuksel, S Tekin, D Yuksel, I Duman, M Sarier, L Yucetin, E Turan, H Celep, T Ugurlu, M M Inal, Y H Asuman, A Demirbas
BACKGROUND: Depending on hyphothalamic, hyphophyseal, and gonadal axis dysfunction, anovulatory irregular cycles occur and the probability of pregnancy decreases in the patients with chronic kidney disease (CKD). Maternal mortality and morbidity rates are increased in CKD patients; the risk of premature delivery is 70% and the risk of preeclampsia is 40% more than normal among those with a creatine level of >2.5 mg/dL. METHODS: If a pregnancy is expected in the sequel of kidney transplantation (KT), a multidisciplinary team approach should be adopted and both the gynecologist and the nephrologist should follow the patient simultaneously...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28282780/early-onset-preeclampsia-is-associated-with-perinatal-mortality-and-severe-neonatal-morbidity
#2
Joris J A van Esch, Arno F van Heijst, Anton F J de Haan, Olivier W H van der Heijden
OBJECTIVE: To evaluate neonatal outcomes of pregnancies complicated by early-onset preeclampsia (PE) and compare these outcomes to those of gestational age matched neonates born to mothers whose pregnancy was not complicated by early-onset PE. METHODS: We analyzed the outcome in 97 neonates born to mothers with early-onset PE (24-32 weeks amenorrhea at diagnosis) and compared it to that of 680 gestational age-matched neonates born between 25-36 weeks due to other etiologies and admitted to the Neonatal Intensive Care Unit (NICU) of a tertiary referral hospital in the Netherlands...
February 23, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28281110/headache-in-neuromyelitis-optica
#3
REVIEW
Alina Masters-Israilov, Matthew S Robbins
PURPOSE OF REVIEW: Neuromyelitis optica (NMO) classically features a clinical presentation that includes longitudinally extensive transverse myelitis and optic neuritis. However, many other pathognomonic phenomena have more recently been described in patients diagnosed with NMO, including intractable hiccups, vomiting, and painful tonic spasms, but less has been reported regarding the relationship between NMO and headache. Though headache is well established as both a symptom and comorbidity of multiple sclerosis (MS), it has been much less described thus far in the NMO literature and warrants more careful evaluation...
April 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28257538/multidisciplinary-approach-to-complicated-pregnancy
#4
Josip Andelo Borovac, Josko Bozic, Tina Ticinovic Kurir, Nikola Zaja, Kresimir Kolic, Vedran Hrboka
A nulliparous pregnant woman in her mid-20s and in the 32nd week of gestation presented to the emergency department with severe headache and vomiting. She had an uneventful medical history; however, the physical examination upon hospital admission revealed a hypertensive emergency, papilledema, and 2+ dipstick proteinuria. Upon establishing the diagnosis of preeclampsia, aggressive therapy with corticosteroids, antihypertensive medication, and seizure prophylaxis was initiated. Hemodynamic stability was achieved within 24 hours and the patient remained in the observation unit located within the gynecology clinic...
March 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28168181/dietary-antioxidant-capacity-and-its-association-with-preeclampsia
#5
Mahdiyeh Sheikhi, Elham Sharifi-Zahabi, Zamzam Paknahad
Preeclampsia (PE) is one of the major disorders in pregnancy leading to many adverse maternal outcomes. Although the etiology of PE is not fully understood, resent studies suggest that an imbalance between free radicals production and the antioxidant defense system might have key role. Our aim of the current study was to evaluate the association between dietary total antioxidant capacity (TAC), serum TAC and risk of PE in women with preeclampsia and normal pregnancy. This case-control study conducted on 55 women with preeclampsia and 93 with normal pregnancy...
January 2017: Clinical Nutrition Research
https://www.readbyqxmd.com/read/28110598/caspase-8-gene-polymorphisms-rs13416436-and-rs2037815-are-not-associated-with-preeclampsia-development-in-brazilian-women
#6
Ivanir Celso Orlando, Sarah Cristina Sato Vaz Tanaka, Marly Aparecida Spadotto Balarin, Sueli Riul da Silva, Cristina Wide Pissetti
BACKGROUND: Preeclampsia is responsible for considerable mortality and morbidity of mother and sibling. The etiology of preeclampsia is still unknown. Family studies indicate the involvement of genes located on chromosome 2 in preeclampsia development. Considering the importance of apoptosis and chromosome 2, one promising candidate for the study of the genetic cause of this syndrome is the CASPASE-8 gene, which was chosen as the subject of this study. OBJECTIVE: The aim of this study was to determine the frequencies of the genotypes for CASP8 gene polymorphisms (rs13416436 and rs2037815) and to associate these with preeclampsia development in Brazilian women...
February 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28079785/antiplatelet-agents-and-the-prevention-of-spontaneous-preterm-birth-a-systematic-review-and-meta-analysis
#7
Elvira O G van Vliet, Lisa A Askie, Ben W J Mol, Martijn A Oudijk
OBJECTIVE: Spontaneous preterm birth is an important cause of neonatal mortality and morbidity. An increasing body of evidence suggests that uteroplacental ischemia plays an important role in the etiology of spontaneous preterm birth. We aimed to study whether antiplatelet agents reduce the risk of spontaneous preterm birth. DATA SOURCES: We included data from an individual participant data meta-analysis of studies that had evaluated the effect of antiplatelet agents to reduce preeclampsia (Perinatal Antiplatelet Review of International Studies Individual Participant Data)...
February 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27965958/a-dormant-microbial-component-in-the-development-of-preeclampsia
#8
REVIEW
Douglas B Kell, Louise C Kenny
Preeclampsia (PE) is a complex, multisystem disorder that remains a leading cause of morbidity and mortality in pregnancy. Four main classes of dysregulation accompany PE and are widely considered to contribute to its severity. These are abnormal trophoblast invasion of the placenta, anti-angiogenic responses, oxidative stress, and inflammation. What is lacking, however, is an explanation of how these themselves are caused. We here develop the unifying idea, and the considerable evidence for it, that the originating cause of PE (and of the four classes of dysregulation) is, in fact, microbial infection, that most such microbes are dormant and hence resist detection by conventional (replication-dependent) microbiology, and that by occasional resuscitation and growth it is they that are responsible for all the observable sequelae, including the continuing, chronic inflammation...
2016: Frontiers in Medicine
https://www.readbyqxmd.com/read/27939475/trophoblast-mitochondrial-function-is-impaired-in-preeclampsia-and-correlates-negatively-with-the-expression-of-soluble-fms-like-tyrosine-kinase-1
#9
Zsuzsanna K Zsengellér, Augustine Rajakumar, Jon T Hunter, Saira Salahuddin, Sarosh Rana, Isaac E Stillman, S Ananth Karumanchi
Preeclampsia is a common medical complication of pregnancy that is associated with significant morbidity and mortality to the mother and the baby. Extensive human epidemiological and experimental studies suggest that excess placental soluble fms-like tyrosine kinase 1, a potent anti-angiogenic factor leads to the maternal hypertension, proteinuria and other systemic complications of preeclampsia. To evaluate the mechanisms of the aberrant placental sFlt1 expression, we studied the role of mitochondrial dysfunction as one possible etiological factor...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27882748/-application-of-the-concetrations-ratio-of-soluble-receptor-tyrosine-kinase-type-1-and-placental-growth-factor-for-short-term-prediction-and-diagnosis-of-preeclampsia
#10
Š Bubeníková, A Cíchová, L Roubalová, V Durdová, R Vlk
OBJECTIVE: Bring a comprehensive overview of the available information about applications of the concetration ratio of soluble receptor tyrosine kinase type 1 (sFlt-1), and placental growth factor for short-term prediction and diagnosis of preeclampsia. DESIGN: Overview study. SETTINGS: Department of Midwifery, Faculty of Health Sciences, Olomouc; Department of Clinical Biochemistry, University Hospital Olomouc; Department of Obstetrics and Gynecology, University Hospital Olomouc; Department of Obstetrics and Gynecology, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27855149/placental-pathology-and-hypospadias
#11
Yan Chen, Luming Sun, Hongquan Geng, Xiaoping Lei, Jun Zhang
BACKGROUND: Studies have shown that hypospadias is associated with placenta-mediated pregnancy complication (PMPC). The role of placental lesions is still unclear. We aimed to examine the association between hyposadias and placental pathology, and the effect of PMPC. METHODS: Using data from the US Collaborative Perinatal Project in 1959-1966, we identified 15,780 male subjects (167 hypospadias) for analysis. Detailed placental examinations were conducted following a standard protocol...
January 4, 2017: Pediatric Research
https://www.readbyqxmd.com/read/27845885/maternal-venous-sharp1-levels-in-preeclampsia
#12
Ali Ozgur Ersoy, Efser Oztas, Sibel Ozler, Aytekin Tokmak, Ebru Ersoy, Merve Ergin, Nuri Danisman
AIM: Owing to its mysterious etiology, pathogenesis of preeclampsia (PE) remains controversial. Here we aimed to compare the levels of an angiogenesis marker, split and hairy related protein-1 (SHARP1), in PE vs. normal pregnancy. METHODS: Thirty-one patients with early-onset PE (EOPE), 26 patients with late-onset PE (LOPE), and 33 patients as a control group were recruited for this study in a tertiary referral center in Ankara, Turkey. Maternal venous SHARP1 levels and individual characteristics of the three groups were compared...
November 15, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27835036/increased-circulating-th22-cells-correlated-with-th17-cells-in-patients-with-severe-preeclampsia
#13
Zhan Zhang, Hui Liu, Ying Shi, Na Xu, Yuanyuan Wang, Aiping Li, Wanyu Song
OBJECTIVE: We aimed to investigate Th22 cells and their association with Th17 and Treg cells in the etiology of severe preeclampsia (sPE). METHODS: Thirty sPE patients and 30 healthy pregnant women were recruited in this study. The percentages of Th17, Th22, and regulatory T cells (Tregs) in the peripheral blood were measured by flow cytometry. ELISA was used to measure the plasma concentrations of interleukin (IL)-17, IL-22, and IL-10. RESULTS: The percentages of Th17 and Th22 cells and the plasma concentrations of IL-17 and IL-22 were significantly increased in sPE patients along with a decreased percentage of Treg cells and a decreased plasma IL-10 concentration...
November 11, 2016: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/27756248/the-impact-of-unrecognized-autoimmune-rheumatic-diseases-on-the-incidence-of-preeclampsia-and-fetal-growth-restriction-a-longitudinal-cohort-study
#14
Arsenio Spinillo, Fausta Beneventi, Elena Locatelli, Vèronique Ramoni, Roberto Caporali, Claudia Alpini, Giulia Albonico, Chiara Cavagnoli, Carlomaurizio Montecucco
BACKGROUND: The burden of pregnancy complications associated with well defined, already established systemic rheumatic diseases preexisting pregnancy such as rheumatoid arthritis, systemic lupus erythematosus or scleroderma is well known. Systemic rheumatic diseases are characterized by a long natural history with few symptoms, an undifferentiated picture or a remitting course making difficult a timely diagnosis. It has been suggested that screening measures for these diseases could be useful but the impact of unrecognized systemic rheumatic disorders on pregnancy outcome is unknown...
October 18, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27741996/diagnosis-of-acute-neurologic-emergencies-in-pregnant-and-postpartum-women
#15
REVIEW
Andrea G Edlow, Brian L Edlow, Jonathan A Edlow
Acute neurologic symptoms in pregnant and postpartum women may be caused by exacerbation of a preexisting neurologic condition, the initial presentation of a non-pregnancy-related problem, or a new neurologic problem. Pregnant and postpartum patients with headache and neurologic symptoms are often diagnosed with preeclampsia or eclampsia; however, other etiologies must also be considered. A team approach with close communication between emergency physicians, neurologists, maternal-fetal medicine specialists, and radiologists is the key to obtaining best outcomes...
November 2016: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/27733657/establishment-of-the-human-uteroplacental-circulation-a-historical-perspective
#16
Kenna Degner, Ronald R Magness, Dinesh M Shah
The uterine vasculature undergoes marked changes during pregnancy in order to provide the necessary increase in blood flow to support growth and nutrition of the uterus, placenta, and developing fetus. Pregnancy-associated uterine vascular transformations are orchestrated by a complex array of endocrine and cellular mechanisms to bring about structural modifications at the maternal-fetal interface, which collectively lead to development of the uteroplacental circulation. Understanding intrinsic uterine vascular remodeling in pregnancy is essential for understanding the physiologic and pathophysiologic regulation of maternal uterine blood flow...
October 12, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27704478/cushing-s-syndrome-and-pregnancy-outcomes-a-systematic-review-of-published-cases
#17
Francisca Caimari, Elena Valassi, Patricia Garbayo, Charlotte Steffensen, Alicia Santos, Rosa Corcoy, Susan M Webb
Pregnancy in Cushing's syndrome (CS) is extremely rare due to the influence of hypercortisolism on the reproductive axis. Purpose of this study is to investigate whether the etiology of CS in pregnancy determines a different impact on the fetal/newborn and maternal outcomes. We performed a systematic review of cases published in the literature from January 1952 to April 2015 including the words "Cushing AND pregnancy". We included 168 manuscripts containing 220 patients and 263 pregnancies with active CS during pregnancy and with a history of CS but treated and cured hypercortisolism at the time of gestation...
February 2017: Endocrine
https://www.readbyqxmd.com/read/27680801/d5-is-maternal-arterial-function-impaired-in-pregnancies-with-fetal-growth-restriction
#18
J Tay, L Foo, C McEniery, I Wilkinson, C Lees
INTRODUCTION: Studies in pre-eclampsia have demonstrated that central haemodynamic changes give more insight than peripheral measures into maternal cardiac and vascular physiology. This study aims to investigate augmentation index (AIX) and pulse wave velocity (PWV) in pregnancies affected by fetal growth restriction (FGR) and compare them to healthy women in the third trimester of pregnancy. Augmentation index (AIx) is a measure of systemic arterial stiffness derived from the ascending aortic pressure waveform...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27668980/vegf-a-and-vegfr1-snps-associate-with-preeclampsia-in-a-philippine-population
#19
Melissa D Amosco, Van Anthony M Villar, Justin Michael A Naniong, Lara Marie G David-Bustamante, Pedro A Jose, Cynthia P Palmes-Saloma
The vascular endothelial growth factor (VEGF) family is important for establishing normal pregnancy, and related single nucleotide polymorphisms (SNPs) are implicated in abnormal placentation and preeclampsia. We evaluated the association between preeclampsia and several VEGF SNPs among Filipinos, an ethnically distinct group with high prevalence of preeclampsia. The genotypes and allelic variants were determined in a case-control study (191 controls and 165 preeclampsia patients) through SNP analysis of VEGF-A (rs2010963, rs3025039) and VEGF-C (rs7664413) and their corresponding receptors VEGFR1 (rs722503, rs12584067, rs7335588) and VEGFR3 (rs307826) from venous blood DNA...
2016: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/27657831/delta-aminolevulinate-dehydratase-activity-and-oxidative-stress-markers-in-preeclampsia
#20
COMPARATIVE STUDY
Leidiane de Lucca, Fabiane Rodrigues, Letícia B Jantsch, Helena Kober, Walter S Neme, Francisco M P Gallarreta, Thissiane L Gonçalves
Preeclampsia is an important pregnancy-specific multisystem disorder characterized by the onset of hypertension and proteinuria. It is of unknown etiology and involves serious risks for the pregnant women and fetus. One of the main factors involved in the pathophysiology of preeclampsia is oxidative stress, where excess free radicals produce harmful effects, including damage to macromolecules such as lipids, proteins and DNA. In addition, the sulfhydryl delta-aminolevulinate dehydratase enzyme (δ-ALA-D) that is part of the heme biosynthetic pathway in pro-oxidant conditions can be inhibited, which may result in the accumulation of 5-aminolevulinic acid (ALA), associated with the overproduction of free radicals, suggesting it to be an indirect marker of oxidative stress...
December 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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