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Journal of Clinical Medicine Oct 2023Neonatal hypoxic-ischemic encephalopathy (HIE) is a condition that results in brain damage in newborns due to insufficient blood and oxygen supply during or after birth.... (Review)
Review
Neonatal hypoxic-ischemic encephalopathy (HIE) is a condition that results in brain damage in newborns due to insufficient blood and oxygen supply during or after birth. HIE is a major cause of neurological disability and mortality in newborns, with over one million neonatal deaths occurring annually worldwide. The severity of brain injury and the outcome of HIE depend on several factors, including the cause of oxygen deprivation, brain maturity, regional blood flow, and maternal health conditions. HIE is classified into mild, moderate, and severe categories based on the extent of brain damage and resulting neurological issues. The pathophysiology of HIE involves different phases, including the primary phase, latent phase, secondary phase, and tertiary phase. The primary and secondary phases are characterized by episodes of energy and cell metabolism failures, increased cytotoxicity and apoptosis, and activated microglia and inflammation in the brain. A tertiary phase occurs if the brain injury persists, characterized by reduced neural plasticity and neuronal loss. Understanding the cellular and molecular aspects of the different phases of HIE is crucial for developing new interventions and therapeutics. This review aims to discuss the pathophysiology of HIE, therapeutic hypothermia (TH), the only approved therapy for HIE, ongoing developments of adjuvants for TH, and potential future drugs for HIE.
PubMed: 37892791
DOI: 10.3390/jcm12206653 -
Journal of Translational Medicine Sep 2023Idiopathic pulmonary fibrosis (IPF) is fibrotic lung disease with no effective treatment. It is characterized by destruction of alveolar structure and pulmonary...
BACKGROUND
Idiopathic pulmonary fibrosis (IPF) is fibrotic lung disease with no effective treatment. It is characterized by destruction of alveolar structure and pulmonary interstitial fibrosis, leading to dyspnea and even asphyxia death of patients. Epithelial-mesenchymal transition (EMT) is considered to be a driving factor in the pathogenesis of IPF. Osteopontin (OPN) is a secreted protein widely present in the extracellular matrix and involved in the occurrence and development of a variety of diseases.
METHODS
The original datasets were obtained from NCBI GEO databases analyzed with the online tool GEO2R and EasyGEO. Bleomycin induced mouse pulmonary fibrosis model and OPN/OPN-biotin treated mouse model were established to investigate the role of OPN in mouse pulmonary fibrosis and the target cells of OPN. A549 cells and HBE cells were used to explore the mechanism of OPN-induced epithelial-mesenchymal transition (EMT) in epithelial cells and mass spectrometry was used to detect OPN downstream receptors. Precision-cut lung slices and lentivirus-treated mice with pulmonary fibrosis were used to examine the therapeutic effect of OPN and its downstream pathways on pulmonary fibrosis.
RESULTS
We demonstrate that the content of OPN in IPF bronchoalveolar lavage fluid (BALF) is high compared to the normal groups, and its expression level is correlated with prognosis. At the animal level, OPN was highly expressed at all stages of pulmonary fibrosis in mice, and the bronchoalveolar lavage fluid (BALF) could accurately reflect its expression in the lung. Next, we reveal that OPN was mainly expressed by macrophages and the main target cells of OPN were epithelial cells. Mice developed pulmonary fibrosis accompanied after treating the mice with OPN. Both in vitro and in vivo experiments confirmed that OPN could induce EMT of alveolar epithelial cells. Mechanistically, OPN binding triggered phosphorylation of FAK by CD44, thus activating snail1-mediated profibrotic protein synthesis. Inhibition of FAK phosphorylation and its downstream pathways can effectively alleviate pulmonary fibrosis in precision sections of lung tissue (PCLS) assay. OPN knockdown in bleomycin-induced lung fibrosis mice led to significantly less fibrosis.
CONCLUSION
Our data suggest that OPN mediates lung fibrosis through EMT, implicating its potential therapeutic target and prognostic indicator role for IPF. OPN may be a target for the diagnosis and treatment of IPF.
Topics: Animals; Humans; Mice; A549 Cells; Biological Assay; Bleomycin; Disease Models, Animal; Idiopathic Pulmonary Fibrosis; Osteopontin
PubMed: 37726818
DOI: 10.1186/s12967-023-04279-0 -
The Journal of Maternal-fetal &... Dec 2023Women's choice of birth following a cesarean delivery either includes a trial of elective repeat cesarean section (ERCS) or a trial of labor after cesarean (TOLAC). No... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
Women's choice of birth following a cesarean delivery either includes a trial of elective repeat cesarean section (ERCS) or a trial of labor after cesarean (TOLAC). No comprehensive overview or systematic summary is currently available.
METHODS
EMBASE, PubMed, and the Cochrane Library databases were searched from inception to 1 February 2020. Studies reporting the safety of TOLAC and ERCS in pregnant women with prior cesarean delivery were included. Statistical analysis was performed using RevMan 5.3 and Stata 15.0. Odds ratios (ORs) and 95% confidence intervals (CIs) were adopted as the effective measures.
RESULTS
A total of 13 studies covering 676,532 cases were included in this meta-analysis. The results demonstrated that the rates of uterine rupture (OR = 3.35, 95%CI [1.57, 7.15], = 81%), neonatal asphyxia (OR = 2.32, 95%CI [1.76, 3.08], = 0%) and perinatal death (OR = 1.71, 95%CI [1.29, 2.25], = 0%) were higher in the TOLAC group compared with the ERCS group. The rates of peripartum hysterectomy (OR = 0.70, 95%CI [0.44, 1.11], = 62%), blood transfusion (OR = 1.24, 95%CI [0.72, 2.12], = 95%), and puerperal infection (OR = 1.11, 95%CI [0.77, 1.60], = 95%) showed no significant differences between the two groups.
CONCLUSION
TOLAC is associated with a higher risk of uterine rupture, neonatal asphyxia, and perinatal death compared with ERCS. Nevertheless, it should be noted that the risks of all complications were small in both groups. This information is important for healthcare providers and women choosing the delivery type.
Topics: Infant, Newborn; Female; Pregnancy; Humans; Cesarean Section; Cesarean Section, Repeat; Trial of Labor; Perinatal Death; Uterine Rupture; Asphyxia; Vaginal Birth after Cesarean; Retrospective Studies
PubMed: 37217450
DOI: 10.1080/14767058.2023.2214831 -
Turk Gogus Kalp Damar Cerrahisi Dergisi Jan 2024Isolated thoracic trauma is rare in children. Because of their small body size, the trauma often also affects other spaces, such as the abdomen and head, and these... (Review)
Review
Isolated thoracic trauma is rare in children. Because of their small body size, the trauma often also affects other spaces, such as the abdomen and head, and these coexistences significantly increase the rate of mortality. However, in isolated thoracic traumas, the children can quickly recover if they can survive the initial period of trauma. Pediatric thoracic trauma cases can have a different clinical course compared to adults due to the unique anatomic and physiologic properties of children's thoracic cages. Their ribs are nonossified and are very elastic, and therefore, as their ribs can sustain significant deformation without breaking, some significant intrathoracic injuries can be overlooked. In this review, the most common thoracic injuries, including pulmonary contusion, hemopneumothorax, pulmonary laceration, rib fractures, flail chest, tracheobronchial injuries, traumatic asphyxia, and other less common mediastinal injuries are discussed in detail in regard of clinical presentation and management.
PubMed: 38584786
DOI: 10.5606/tgkdc.dergisi.2024.25746