Abstract：
OBJECTIVE:Intrauterine hypoxia/asphyxia is not the cause, but a consequence of different pathological conditions that requires a more detailed study of the morphogenesis of perinatal death. METHODS:Structural changes in placentas of intrauterine fetal demise (IUFD) in different stages of intrauterine period and placentas in early neonatal death were reviewed and compared. Control group was composed of term placentas without evidence of perinatal asphyxia or other neonatal abnormalities. Immunohistochemical investigation was performed by antibodies to Herpes simplex virus (HSV), Cytomegalovirus (CMV), and tumor necrosis factor (TNF). Morphometric analysis was performed using the Pannoramic Midi II histoscanner of "3DHISTECH" company. RESULTS:The histologic examination of placentas revealed differences between IUFD and early neonatal death. Predominant localization of HSV and CMV antigens was noted in the walls of capillaries and in placental villous stroma in absolute majority of IUFD and early neonatal death cases; importantly, colocalization of TNF, HSV, and CMV antigens was also detected in cases of IUFD and early neonatal period. CONCLUSION:Damage of placental vessels due to the influence of pathogenic factors (virus antigens, TNF) can cause acute or chronic intrauterine fetus hypoxia which is a leading pathogenetic factor of perinatal death.
journal_name
Ann Clin Lab Scijournal_title
Annals of clinical and laboratory scienceauthors
Nasyrov RA,Sidorova NA,Melnikova VF,Fedotova EPsubject
Has Abstractpub_date
2020-11-01 00:00:00pages
754-760issue
6eissn
0091-7370issn
1550-8080pii
50/6/754journal_volume
50pub_type
杂志文章abstract：:This work describes a case of Haemophilus influenzae serotype a meningitis in Brazil, after almost a decade since the introduction of Haemophilus influenzae serotype b conjugate vaccine. Uncertainty about the replacement of H. influenzae serotypes as a cause of invasive diseases justifies continuous surveillance, coup...
journal_title：Annals of clinical and laboratory science
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journal_title：Annals of clinical and laboratory science
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journal_title：Annals of clinical and laboratory science
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更新日期：1987-09-01 00:00:00
abstract：:It has been shown that the single nucleotide polymorphism (SNP) of the rs2735940 site in the human telomerase reverse transcriptase (hTERT) gene is associated with increased cancer risk. The traditional method to detect SNP genotypes is polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). How...
journal_title：Annals of clinical and laboratory science
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journal_title：Annals of clinical and laboratory science
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journal_title：Annals of clinical and laboratory science
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journal_title：Annals of clinical and laboratory science
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