Leucocytes in infancy and childhood

Kato, Katsuji

doi:10.1016/s0022-3476(35)80143-1

Cited by 63 publications

(16 citation statements)

References 13 publications

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“…33,34 Monocyte counts remain low in fetal blood until the fifth month of gestation and increase gradually once the marrow becomes the predominant site of hematopoiesis. 34,35 Our reference range for monocyte concentrations in term infants was 300 to 3300 ml -1 , which is wider than the ranges reported by Kato 36 (1340 to 2200 ml -1 ) but is comparable to the data from Xanthou 37 (300 to 2100 ml -1 ). However, unlike the previous studies that showed highest monocyte counts during the first 24 h after birth, monocyte concentrations in our cohort increased during the first 2 weeks before beginning a downward trend in the third postnatal week.…”

supporting

confidence: 54%

Reference ranges for blood concentrations of eosinophils and monocytes during the neonatal period defined from over 63 000 records in a multihospital health-care system

et al. 2010

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Objective: Blood concentrations of eosinophils and monocytes are part of the complete blood count. Reference ranges for these concentrations during the neonatal period, established by very large sample sizes and modern methods, are needed for identifying abnormally low or high values.Study Design: We constructed reference ranges for eosinophils per ml and monocytes per ml among neonates of 22 to 42 weeks of gestation, on the day of birth, and also during 28 days after birth. Data were obtained from archived electronic records over an eight and one-half-year period in a multihospital health-care system. In keeping with the reference range concept, values were excluded from neonates with a diagnosis of infection or necrotizing enterocolitis (NEC).Result: Eosinophils and monocytes per ml of blood were electronically retrieved from 96 162 records, of which 63 371 that lacked a diagnosis of infection or NEC were included in this reference range report. The mean value for eosinophils per ml on the day of birth increased linearly between 22 and 42 weeks of gestation, as did the 5 and 95% values. The reference range at 40 weeks was 140 to 1300 ml -1 (mean 550 ml -1). Similarly, the mean value for monocytes increased linearly over this interval, with a reference range at 40 weeks of 300 to 3300 ml -1 (mean 1400 ml -1). Over the first 4 weeks after birth, no appreciable change was observed in 5% limit and mean eosinophil count, with a slight increase in the 95% limit in week 4. A slight increase in monocyte count was observed during the first 2 weeks after birth. Conclusion:The results of this analysis describe reference ranges for blood concentrations of eosinophils and monocytes during the neonatal period. Additional study is needed for determining the relevance of values falling outside the reference range.

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confidence: 54%

Reference ranges for blood concentrations of eosinophils and monocytes during the neonatal period defined from over 63 000 records in a multihospital health-care system

et al. 2010

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“…12,13 The study by Erkeller-Yuksel et al 12 found a statistically significant (P Ͼ 0.005) halving in leukocyte count from birth (cord blood) to adults in the 18-year to 70-year age group. These findings further extend this adult age group to persons of 98 years old and may suggest that the observed decline in DNA yield that the authors detected may represent continual decline of leukocyte number with increasing age.…”

Section: Discussionmentioning

confidence: 97%

Blood storage at 4°C—factors involved in DNA yield and quality

Richardson

Narendran

Guymer

et al. 2006

Journal of Laboratory and Clinical Medicine

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“…No deliberate selection was made of the children on which the examination was made, but the aim was to have it made in all 55 cases of leuco-agglutinin in the maternal serum. No positive cases of leucopenia were found on a comparison with normal materials [11,19,28]. Table VI shows the same children grouped according to whether the presence of leuco-agglutinin in cord blood serum was (1) certain, (2) doubtful, or (3) not established, and (4) in cases not examined for leuco-agglutinin in cord blood serum.…”

Section: Resultsmentioning

confidence: 99%

Leucocyte Antibodies in Serums of Pregnant Women

Jensen¹

1962

Vox Sanguinis

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Leucocytes in infancy and childhood

Cited by 63 publications

References 13 publications

Reference ranges for blood concentrations of eosinophils and monocytes during the neonatal period defined from over 63 000 records in a multihospital health-care system

Reference ranges for blood concentrations of eosinophils and monocytes during the neonatal period defined from over 63 000 records in a multihospital health-care system

Blood storage at 4°C—factors involved in DNA yield and quality

Leucocyte Antibodies in Serums of Pregnant Women

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