Background: Thrombocytopenia in hypoxic neonates admitted in NICU is a morbid condition encountered very commonly. Early-onset thrombocytopenia (<72 h) is most commonly associated with fetomaternal conditions complicated by placental insufficiency and/or fetal hypoxia. Chronic intrauterine hypoxia is the most frequent cause of early-onset thrombocytopenia in preterm neonates.
Aims: In this study incidence and clinical impact of early thrombocytopenia in hypoxic neonates was investigated.
Setting And Design: Neonatal intensive care unit of a tertiary level hospital attached to a medical college in Central India. A cross-sectional, observational hospital based study in hypoxic neonates for development of thrombocytopenia.
Materials And Methods: 603 hypoxic newborns were evaluated for development of thrombocytopenia. 155 (25.07%) developed thrombocytopenia and were the cases. Non thrombocytopenic babies 448 (74.29%) served as controls. The two groups were compared for birth weight, sex ratio, gestational age, severity of asphyxia, platelet counts and mortality rate.
Statistical Analysis: Descriptive statistics of continuous variable were expressed in mean and SD. P value less than or equal to 0.05 were statistically significant.
Results And Conclusions: We found thrombocytopenia to be associated with male gender, prematurity and low birth weight. Most babies had mild to moderate thrombocytopenia. Mortality was higher in preterm thrombocytopenic babies as compared to term. We suggest screening for thrombocytopenia in all asphyxiated newborns, as hypoxia can lead to neonatal thrombocytopenia.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762028 | PMC |
http://dx.doi.org/10.4103/2249-4847.101693 | DOI Listing |
Hypertension
January 2025
State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, China. (F.W., Z.L., W.L., H.L., H.F., S.L., C.Z., Y.Z., S.M., C.W., Z.Z., W.F., J.Z., Q.Y., M.D., W.K., A.L., J.L., X.L., X.W., N.L., Y.C., K.Y., J.W.).
Background: Mechanosensitive Piezo1 channel plays a key role in pulmonary hypertension (PH). However, the role of Piezo2 in PH remains unclear.
Methods: Endothelial cell (EC)-specific knockout (, Tek-Cre; ) rats and primarily cultured pulmonary microvascular ECs were used to determine the role of Piezo2 in PH.
Cancer Metab
December 2024
Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, 200 First St. SW, Rochester, MN, 55905, USA.
Heterozygosity for loss-of-function alleles of the genes encoding the four subunits of succinate dehydrogenase (SDHA, SDHB, SDHC, SDHD), as well as the SDHAF2 assembly factor predispose affected individuals to pheochromocytoma and paraganglioma (PPGL), two rare neuroendocrine tumors that arise from neural crest-derived paraganglia. Tumorigenesis results from loss of the remaining functional SDHx gene copy, leading to a cell with no functional SDH and a defective tricarboxylic acid (TCA) cycle. It is believed that the subsequent accumulation of succinate competitively inhibits multiple dioxygenase enzymes that normally suppress hypoxic signaling and demethylate histones and DNA, ultimately leading to increased expression of genes involved in angiogenesis and cell proliferation.
View Article and Find Full Text PDFBiochemistry (Mosc)
November 2024
Laboratory of Regulation of Brain Neuronal Functions, Pavlov Institute of Physiology, Russian Academy of Sciences, Saint Petersburg, 199034, Russia.
Previous studies have shown that the combined effect of fetal hypoxia and maternal stress hormones predetermines tendency to nicotine addiction in adulthood. This study in rats aimed to investigate the effect of prenatal severe hypoxia (PSH) on acetylcholine metabolism in the developing brain, as well as on expression of acetylcholine receptors and in both the developing brain and adult brain structures following nicotine consumption. In the developing brain of PSH rats, no changes were found in the activity of choline acetyltransferase (ChAT) and acetylcholinesterase (AChE) or disturbances in the acetylcholine levels.
View Article and Find Full Text PDFBMJ Paediatr Open
November 2024
Neonatal Unit, Homerton Healthcare NHS Foundation Trust, London, UK
Introduction: Hypoxic ischaemic encephalopathy (HIE), a condition where the brain does not receive enough oxygen and/or blood flow around the time of birth, is associated with significant morbidity and mortality. Systemic circulation may be affected due to poor myocardial function. The cochlear hair cells are vulnerable to changes in microcirculation, which may occur in HIE predisposing to hearing loss.
View Article and Find Full Text PDFEur J Med Res
October 2024
Department of Exercise Physiology, College of Health Sciences, University of Lynchburg, Lynchburg, VA, 24451, USA.
Background: Sympathetic nervous system hyperactivity and chronic intermittent nocturnal hypoxia in individuals with obstructive sleep apnea (OSA) predispose them to microvascular impairment, which may contribute to increased daytime muscle fatigue. This study aimed to assess microvascular reactivity of the skeletal muscle, examine fatigability, and determine the relationship between fatigability and microvascular reactivity in adults with OSA.
Methods: Twenty-six participants were allocated into two groups-those with OSA and those without i.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!