Developmental adaptations of neonatal neutrophils (review)

2021 ◽  
Vol 18 (2) ◽  
pp. 55-65
Author(s):  
Vladimir E. Mukhin ◽  
Liudmila L. Pankratyeva ◽  
Mikhail N. Yartsev ◽  
Nikolay N. Volodin

Neutrophils are crucial components of the innate immunity. Differences exist in the physiological, phenotypic, and functional characteristics between neonatal and adult neutrophils. The severity of these changes is inversely proportional to gestational age, which indicates the dynamic development of these cells throughout pregnancy. Therefore, functional insufficiency of neonatal neutrophils is associated with an extremely high risk of developing neonatal infections and sepsis in infants born premature. Neonatal neutrophils are adapted to conditions that prevent unwanted triggering of proinflammatory factors. In addition, suppression of neutrophil functions is necessary to create a healthy microbiome in the postpartum period; however, it can be inhibit the development of a response to pathogenic organisms. Mechanisms underlying the normal transition of functionally limited neutrophils, capable of fully resisting pathogenic microorganisms, have not been established. This review presents features of neutrophil ontogenetic adaptation to intrauterine conditions and early neonatal period and their potential role in neonatal pathology.

2020 ◽  
Vol 26 ◽  
Author(s):  
Areti Sofogianni ◽  
Konstantinos Tziomalos ◽  
Triantafyllia Koletsa ◽  
Apostolos G. Pitoulias ◽  
Lemonia Skoura ◽  
...  

: Carotid atherosclerosis is responsible for a great proportion of ischemic strokes. Early identification of unstable or vulnerable carotid plaques and therefore of patients at high risk for stroke is of significant medical and socioeconomical value. We reviewed the current literature and discuss the potential role of the most important serum biomarkers in identifying patients with carotid atherosclerosis who are at high risk for atheroembolic stroke.


2010 ◽  
Vol 70 (4) ◽  
pp. 668-674 ◽  
Author(s):  
P Dieudé ◽  
M Guedj ◽  
J Wipff ◽  
B Ruiz ◽  
G Riemekasten ◽  
...  

BackgroundRecent evidence has highlighted a potential role of interleukin 1β (IL-1β) in systemic sclerosis (SSc). NLRP1 provides a scaffold for the assembly of the inflammasome that promotes the processing and maturation of pro-IL-1β. In addition, NLRP1 variants were found to confer susceptibility to autoimmune disorders.ObjectiveTo study a possible association of the NLRP1 rs6502867, rs2670660 and rs8182352, rs12150220 and rs4790797 with SSc in the European Caucasian population.MethodsNLRP1 single nucleotide polymorphisms were genotyped in 3227 individuals comprising a discovery set (870 SSc patients and 962 controls) and a replication set including individuals from Germany (532 SSc patients and 324 controls) and Italy (527 SSc patients and 301 controls), all individuals being of European Caucasian origin.ResultsConditional analyses revealed a significant association for the NLRP1 rs8182352 variant with both anti-topoisomerase-positive and SSc-related fibrosing alveolitis (FA) subsets under an additive model: p=0.0042, OR 1.23 (95% CI 1.07 to 1.41) and p=0.0065 OR 1.19 (95% CI 1.05 to 1.36), respectively. Logistic regression analysis showed an additive effect of IRF5 rs2004640, STAT4 rs7574865 and NLRP1 rs8182352 risk alleles on SSc-related FA.ConclusionsOur results establish NLRP1 as a new genetic susceptibility factor for SSc-related pulmonary fibrosis and anti-topoisomerase-positive SSc phenotypes. This provides new insights into the pathogenesis of SSc, underlining the potential role of innate immunity in particular in the FA-positive SSc subphenotype, which represents a severe subset of the disease.


2010 ◽  
Vol 30 (1) ◽  
pp. 58-73 ◽  
Author(s):  
Paul T. Seed ◽  
Lucy C. Chappell ◽  
Michael A. Black ◽  
Katrina K. Poppe ◽  
Yuan-Chun Hwang ◽  
...  

2018 ◽  
pp. 108-113
Author(s):  
Yu.R. Feyta ◽  
◽  
V.I. Pyrohova ◽  

Despite the introduction of modern diagnostic technologies, prophylaxis and treatment techniques in obstetrical practice, the incidence of postpartum purulent-septic complications (PPSC) remains rather high and is an important medical and social problem, as they take one of the leading places in the structure of maternal morbidity and mortality. The objective: to improve the management of parturient womenwith a perineal birth injury in anamnesis, as part of an effective prevention of purulent-septic complications of puerperium. Materials and methods. The study included 77parturient women. Main and comparative groups were formed by women with a violation of the integrity of the perineum in the previous labor and with a high risk of developing infectious complications in puerperium. Women of the main group (n = 24) during each vaginal examination in labor (and an additional injection in 15-30 minutes after the rupture of the membranes) and twice a dayat a dose of 5 ml for 5 days postpartum, an antiseptic agent in the form of a vaginal gel, which consists of: 0.02% decamethoxin (antiseptic component), 0.5% hyaluronic acid (regenerating component) and lactate buffer (regulatory component). The comparison group included 27 women, without using vaginal gel in laborand using traditional wound treatment techniques in the postpartum period. The control group consisted of 26 women with uncomplicated somatic status, physiological course of pregnancy and labor. The evaluation of the effectiveness of the prescribed treatment was based on subjective symptoms (pain, discomfort, burning in the region of the perineal sutures), clinical data (swelling, hyperemia, nature of suturing healing), generally accepted indicators in dynamics (bacterioscopy of vaginal contents, pH-metry of the vaginal environment). Results. At the background of the use of three-component vaginal gel in the main group, the level of injury of soft tissues of the birth canal in these deliveries was lower by 19.9% than in the comparison group, prevalence of the 1st degreeperineumruptures, decreased the need for repeated episio- and perineotomy, which reduced the duration stay at hospital and improved postpartum rehabilitation in relation to the comparison group. On the third day of puerperium, hyperemia and edema of the wound area in women of the main group were observed almost three times less compared with the comparison group. On the fifth day of the puerperium in the main group the complaints were insignificant and appeared on the average 5 times less often, the healing was by the primary tension without infectious complications. The use of vaginal gel reduced the number of leukocytes in wound secretions by shortening the time of wound epithelization (1.5 times faster than in the parous from the comparison group). On the fifth day of using vaginal gel, 2/3 of the patients observed normalization of the vaginal microflora, the restoration of pH was observed. The results indicate the benefits of early onset of prophylactic measures and high effectiveness of topical antiseptic therapy in women with high infectious risk. Conclusions.In order to prevent antibiotic resistance tactics of prevention of PPSC in the group of high-risk septic complications provides one of the elements of anintegrated approach to use local antiseptics. Inclusion of the latter into a complex of prophylactic and treatment measures in the management of a high-riskwomen in puerperium contributes to the reduction of traumatic and infectious complications and provides more favorable course of labor and the postpartum period. Key words: labor traumatism, postpartum purulent-septic complications, local antiseptic.


2021 ◽  
pp. 71-72
Author(s):  
Aswini Viswanadh ◽  
Sujata Singh ◽  
Vinnisa N. V

Chorea gravidarum is the term given to chorea occurring during pregnancy. Here, we report a case of 24 year old primigravida at gestational age 38 weeks 3days ,without any signicant past & family history who presented with chorea gravidarum for the rst time in third trimester. On detailed evaluation no etiology was identied. On follow up in postpartum period, her choreiform movements have reduced in intensity, but is still persisting pointing towards an idiopathic origin.


CoDAS ◽  
2014 ◽  
Vol 26 (4) ◽  
pp. 294-301 ◽  
Author(s):  
Rosanna Giaffredo Angrisani ◽  
Edna Maria Albuquerque Diniz ◽  
Ruth Guinsburg ◽  
Alexandre Archanjo Ferraro ◽  
Marisa Frasson de Azevedo ◽  
...  

PURPOSE: To follow the maturation of the auditory pathway of infants born small for gestational age term, by studying absolute and interpeak latencies of Auditory Brainstem Response (ABR) in the first six months of life.METHODS: Multicentric prospective longitudinal study. The ABR was carried out in the neonatal period in 96 newborn infants, 49 small for gestational age (SGA) and 47 appropriate for gestational age (AGA). Of these, 77 infants (39 SGA and 38 AGA) returned for a second evaluation. In the third evaluation, 70 infants (35 SGA and 35 AGA) returned.RESULTS: SGA and AGA did not present significant differences in the neonatal period and at three months of life. However, at six months, there was statistical significant difference between SGA and AGA groups for the latencies of wave III and interpeak I-III. Latencies of ABR waves decreased more rapidly in the first three months than the third to the sixth month of life for the SGA. AGA group showed progressive decrease in latency of ABR waves during the six months.CONCLUSION: The findings suggest that, for SGA infants, the maturational process of the auditory pathway occurs in different rate when compared to AGA infants. The SGA infants have faster maturation especially at the first three months of life, while in infants AGA, this process occurred in a constant and gradual way throughout the six months studied.


Medicina ◽  
2020 ◽  
Vol 56 (9) ◽  
pp. 475
Author(s):  
Domenico M. Romeo ◽  
Martina Ricci ◽  
Maria Picilli ◽  
Benedetta Foti ◽  
Giorgia Cordaro ◽  
...  

Background and Objectives: Late preterm (LP) infants (born between 34 and 36 weeks of gestational age) are considered at higher risk of neonatal morbidities, mortality, and neurological impairments than full-term born infants (FT). The aim of this study was to provide a critical review of the literature outlining the different aspects of neurological function reported both in the neonatal period and in the follow up of late preterm infants. Materials and Methods: A comprehensive search of the MEDLINE, Embase, PsycINFO, and CINAHL electronic databases was made, using the following search terms: ‘Late preterm infants’, ‘Near term infants’, ‘neurological assessment’, ‘neurological outcome’, ‘neuromotor outcome’, cerebral palsy’, ‘CP’, ‘motor impairment’, including all the studies reporting clinical neurological assessment of LP (including both neonatal period and subsequent ages). Results: A total of 35 articles, comprising 301,495 children, were included as fulfilling the inclusion criteria: ten reported neonatal neurological findings, seven reported data about the first two years after birth, eighteen reported data about incidence of CP and motor disorder during the infancy. Results showed a more immature neurological profile, explored with structured neurological assessments, in LP infants compared with FT infants. The LP population also had a higher risk of developing cerebral palsy, motor delay, and coordination disorder. Conclusion: LP had a higher risk of neurological impairments than FT infants, due to a brain immaturity and an increased vulnerability to injury, as the last weeks of gestational age are crucial for the development of the brain.


2017 ◽  
Vol 37 (1) ◽  
pp. 45-50
Author(s):  
Merina Shrestha ◽  
Luna Bajracharya ◽  
Laxman Shrestha

Introduction: With increasing survival of high risk babies, children with different developmental disabilities have emerged as a challenge for the baby, family as well as for physicians. With limited awareness and resources, follow-up and interventions for these babies are difficult. The study was carried out to find out the development of high risk babies in different developmental domains at one year of age.Material and Methods: NICU graduates who visited high risk clinic at one year of age were assessed. ASQ-3 was used to screen development. Children with major congenital anomalies and syndromes were excluded from the study.Results: Out of 28 high risk babies, about 29% had global delay. Those babies who had seizure during neonatal period could not score even in single item of ASQ-3. Conclusion: All high risk babies are at risk of developing delay hence should be followed up regularly. Timely early intervention needs to be started to minimize delay.  


2020 ◽  
Vol 5 ◽  
pp. 5-10
Author(s):  
T. P. Andriichuk ◽  
A. Ya. Senchuk ◽  
V. I. Chermak

The objective: to study the features of pregnancy, childbirth, postpartum period, fetal status and newborns in patients with a history of chronic salpingo-оophoritis.Materials and methods. Conducted a retrospective study of 150 birth histories and neonatal development maps. All patients were divided into two groups. The main group includes 100 patients with chronic salpingo-оophoritis, for which they received anti-inflammatory treatment from 1 to 3 times before pregnancy. The control group included 50 pregnant women who did not suffer from chronic salpingo-оophoritis.Results. Our analysis of pregnancy, childbirth, fetal and neonatal status in women with chronic salpingo-оophoritis indicates that such patients have a complicated obstetric and gynecological and somatic history, which forms an unfavorable basic condition of organs and systems, imperfect adaptation to pregnancy, high risk of failure of adaptive reactions. The result is a violation of the formation and development of the mother-placenta-fetus system and, as a consequence, a high level of complications during pregnancy, childbirth and perinatal pathology.Conclusion. Patients suffering from chronic salpingo-oophoritis should be considered at high risk of possible complications during pregnancy and childbirth. This category of women needs quality preconception training and careful monitoring during pregnancy.


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