Background:The fetal growth charts in widest use in China were published by Hadlock>35 years ago and were established on data from several hundred of American pregnant women.After that,>100 fetal growth charts w...Background:The fetal growth charts in widest use in China were published by Hadlock>35 years ago and were established on data from several hundred of American pregnant women.After that,>100 fetal growth charts were published around the world.We attempted to assess the impact of applying the long-standing Hadlock charts and other charts in a Chinese population and to compare their ability to predict newborn small for gestational age(SGA).Methods:For this retrospective observational study,we reviewed all pregnant women(n=106,455)who booked prenatal care with ultrasound measurements for fetal biometry at the Shenzhen Maternity and Child Healthcare Hospital between 2012 and 2019.A fractional polynomial regression model was applied to generate Shenzhen fetal growth chart ranges for head circumference(HC),biparietal diameter(BPD),abdominal circumference(AC),and femur length(FL).The differences between Shenzhen charts and published charts were quantified by calculating the Z-score.The impact of applying these published charts was quantifed by calculating the proportions of fetuses with biometric measurements below the 3rd centile of these charts.The sensitivity and area under the receiver operating characteristic curves of published charts to predict neonatal SGA(birthweight<10th centile)were assessed..Results:Following selection,169,980 scans of fetal biometry contributed by 41,032 pregnancies with reliable gestational age were analyzed.When using Hadlock references(<3rd centile),the proportions of small heads and short femurs were as high as 8.9%and 6.6%in late gestation,respectively.The INTERGROWTH-21st standards matched those of our observed curves better than other charts,in particular for fat-free biometry(HC and FL).When using AC<10th centile,all of these references were poor at predicting neonatal SGA.Conclusions:Applying long-standing Hadlock references could misclassify a large proportion of fetuses as SGA.INTERGROWTH-21st standard appears to be a safe option in China.For fat-based biometry,AC,a reference based on the Chinese population is needed.In addition,when applying published charts,particular care should be taken due to the discrepancy of measurement methods.展开更多
Mental disorders are common health concerns and contribute to a heavy global burden on our modern society.It is challenging to identify and treat them timely.Neuroimaging evidence suggests the incidence of various psy...Mental disorders are common health concerns and contribute to a heavy global burden on our modern society.It is challenging to identify and treat them timely.Neuroimaging evidence suggests the incidence of various psychiatric and behavioral disorders is closely related to the atypical development of brain structure and function.The identification and understanding of atypical brain development provide chances for clinicians to detect mental disorders earlier,perhaps even prior to onset,and treat them more precisely.An invaluable and necessary method in identifying and monitoring atypical brain development are growth charts of typically developing individuals in the population.The brain growth charts can offer a series of standard references on typical neurodevelopment,representing an important resource for the scientific and medical communities.In the present paper,we review the relationship between mental disorders and atypical brain development from a perspective of normative brain development by surveying the recent progress in the development of brain growth charts,including four aspects on growth chart utility:1)cohorts,2)measures,3)mechanisms,and 4)clinical translations.In doing so,we seek to clarify the challenges and opportunities in charting brain growth,and to promote the application of brain growth charts in clinical practice.展开更多
Introduction: Current WHO recommendation is to continue exclusive breast feeding (EBF) up to six months. Main concern regarding this recommendation is, whether EBF supports rapidly growing infant with adequate nutriti...Introduction: Current WHO recommendation is to continue exclusive breast feeding (EBF) up to six months. Main concern regarding this recommendation is, whether EBF supports rapidly growing infant with adequate nutrition. Methods: A cohort of randomly selected new-borns was followed up at two, four and six months, to study feeding pattern and physical growth. Feeding practices and socio-demographic data were collected using an interviewer administered questionnaire. Weight & length were measured using standard techniques. Results: EBF rates were very high in this cohort of children. One main reason to stop EBF was growth faltering. Only some children showed a catch up growth by stopping EBF. At two, four and six months, weight faltering rates among EBF babies were, 11.1%, 20.1% and 13.2% respectively. Length faltering had a similar pattern, but with a higher rate at all ages. Conclusions: EBF up to six months did not cause growth faltering in the majority. In the majority, no identifiable cause for growth faltering was found. Possible genetic influence on growth faltering was not considered when stopping EBF.展开更多
Brain growth charts and age-normed brain templates are essential resources for researchers to eventually contribute to the care of individuals with atypical developmental trajectories.The present work generates age-no...Brain growth charts and age-normed brain templates are essential resources for researchers to eventually contribute to the care of individuals with atypical developmental trajectories.The present work generates age-normed brain templates for children and adolescents at one-year intervals and the corresponding growth charts to investigate the influences of age and ethnicity using a common pediatric neuroimaging protocol.Two accelerated longitudinal cohorts with the identical experimental design were implemented in the United States and China.Anatomical magnetic resonance imaging(MRI)of typically developing school-age children(TDC)was obtained up to three times at nominal intervals of1.25 years.The protocol generated and compared population-and age-specific brain templates and growth charts,respectively.A total of 674 Chinese pediatric MRI scans were obtained from 457 Chinese TDC and 190 American pediatric MRI scans were obtained from 133 American TDC.Population-and age-specific brain templates were used to quantify warp cost,the differences between individual brains and brain templates.Volumetric growth charts for labeled brain network areas were generated.Shape analyses of cost functions supported the necessity of age-specific and ethnicitymatched brain templates,which was confirmed by growth chart analyses.These analyses revealed volumetric growth differences between the two ethnicities primarily in lateral frontal and parietal areas,regions which are most variable across individuals in regard to their structure and function.Age-and ethnicity-specific brain templates facilitate establishing unbiased pediatric brain growth charts,indicating the necessity of the brain charts and brain templates generated in tandem.These templates and growth charts as well as related codes have been made freely available to the public for open neuroscience(https://github.com/zuoxinian/CCS/tree/master/H3/Growth Charts).展开更多
基金supported by grants from the Shenzhen Science and Technology Project(No.JCYJ20210324130812035)The National Key Research and Development Program of China(No.2018YFC1002200).
文摘Background:The fetal growth charts in widest use in China were published by Hadlock>35 years ago and were established on data from several hundred of American pregnant women.After that,>100 fetal growth charts were published around the world.We attempted to assess the impact of applying the long-standing Hadlock charts and other charts in a Chinese population and to compare their ability to predict newborn small for gestational age(SGA).Methods:For this retrospective observational study,we reviewed all pregnant women(n=106,455)who booked prenatal care with ultrasound measurements for fetal biometry at the Shenzhen Maternity and Child Healthcare Hospital between 2012 and 2019.A fractional polynomial regression model was applied to generate Shenzhen fetal growth chart ranges for head circumference(HC),biparietal diameter(BPD),abdominal circumference(AC),and femur length(FL).The differences between Shenzhen charts and published charts were quantified by calculating the Z-score.The impact of applying these published charts was quantifed by calculating the proportions of fetuses with biometric measurements below the 3rd centile of these charts.The sensitivity and area under the receiver operating characteristic curves of published charts to predict neonatal SGA(birthweight<10th centile)were assessed..Results:Following selection,169,980 scans of fetal biometry contributed by 41,032 pregnancies with reliable gestational age were analyzed.When using Hadlock references(<3rd centile),the proportions of small heads and short femurs were as high as 8.9%and 6.6%in late gestation,respectively.The INTERGROWTH-21st standards matched those of our observed curves better than other charts,in particular for fat-free biometry(HC and FL).When using AC<10th centile,all of these references were poor at predicting neonatal SGA.Conclusions:Applying long-standing Hadlock references could misclassify a large proportion of fetuses as SGA.INTERGROWTH-21st standard appears to be a safe option in China.For fat-based biometry,AC,a reference based on the Chinese population is needed.In addition,when applying published charts,particular care should be taken due to the discrepancy of measurement methods.
基金supported by the Child Brain-Mind Development Cohort Study in China Brain Initiative(SQ2021AAA010024)the Start-up Funds for Leading Talents at Beijing Normal University,the National Basic Science Data Center“Chinese Data-sharing Warehouse for In-vivo Imaging Brain”(NBSDC-DB-15)+2 种基金the Beijing Municipal Science and Technology Commission(Z161100002616023)the Major Project of National Social Science Foundation of China(20&ZD296)Dr Avram J.Holmes is supported by the National Institutes of Health(R01MH120080).
文摘Mental disorders are common health concerns and contribute to a heavy global burden on our modern society.It is challenging to identify and treat them timely.Neuroimaging evidence suggests the incidence of various psychiatric and behavioral disorders is closely related to the atypical development of brain structure and function.The identification and understanding of atypical brain development provide chances for clinicians to detect mental disorders earlier,perhaps even prior to onset,and treat them more precisely.An invaluable and necessary method in identifying and monitoring atypical brain development are growth charts of typically developing individuals in the population.The brain growth charts can offer a series of standard references on typical neurodevelopment,representing an important resource for the scientific and medical communities.In the present paper,we review the relationship between mental disorders and atypical brain development from a perspective of normative brain development by surveying the recent progress in the development of brain growth charts,including four aspects on growth chart utility:1)cohorts,2)measures,3)mechanisms,and 4)clinical translations.In doing so,we seek to clarify the challenges and opportunities in charting brain growth,and to promote the application of brain growth charts in clinical practice.
文摘Introduction: Current WHO recommendation is to continue exclusive breast feeding (EBF) up to six months. Main concern regarding this recommendation is, whether EBF supports rapidly growing infant with adequate nutrition. Methods: A cohort of randomly selected new-borns was followed up at two, four and six months, to study feeding pattern and physical growth. Feeding practices and socio-demographic data were collected using an interviewer administered questionnaire. Weight & length were measured using standard techniques. Results: EBF rates were very high in this cohort of children. One main reason to stop EBF was growth faltering. Only some children showed a catch up growth by stopping EBF. At two, four and six months, weight faltering rates among EBF babies were, 11.1%, 20.1% and 13.2% respectively. Length faltering had a similar pattern, but with a higher rate at all ages. Conclusions: EBF up to six months did not cause growth faltering in the majority. In the majority, no identifiable cause for growth faltering was found. Possible genetic influence on growth faltering was not considered when stopping EBF.
基金the Beijing Municipal Science and Tech Commission(Z161100002616023,Z171100000117012,Z181100001518003)the National Natural Science Foundation of China(81220108014)+4 种基金the China-Netherlands CAS-NWO Programme(153111KYSB20160020)the National R&D Infrastructure and Facility Development Program of China,Fundamental Science Data Sharing Platform(DKA2020-12-02-21)the Startup Funds for Leading Talents at Beijing Normal University,Guangxi Ba Gui Scholarship(201621)the Key Realm R&D Program of Guangdong Province(2019B030335001)funded by the Singapore National Research Foundation(NRF)Fellowship(Class of 2017)。
文摘Brain growth charts and age-normed brain templates are essential resources for researchers to eventually contribute to the care of individuals with atypical developmental trajectories.The present work generates age-normed brain templates for children and adolescents at one-year intervals and the corresponding growth charts to investigate the influences of age and ethnicity using a common pediatric neuroimaging protocol.Two accelerated longitudinal cohorts with the identical experimental design were implemented in the United States and China.Anatomical magnetic resonance imaging(MRI)of typically developing school-age children(TDC)was obtained up to three times at nominal intervals of1.25 years.The protocol generated and compared population-and age-specific brain templates and growth charts,respectively.A total of 674 Chinese pediatric MRI scans were obtained from 457 Chinese TDC and 190 American pediatric MRI scans were obtained from 133 American TDC.Population-and age-specific brain templates were used to quantify warp cost,the differences between individual brains and brain templates.Volumetric growth charts for labeled brain network areas were generated.Shape analyses of cost functions supported the necessity of age-specific and ethnicitymatched brain templates,which was confirmed by growth chart analyses.These analyses revealed volumetric growth differences between the two ethnicities primarily in lateral frontal and parietal areas,regions which are most variable across individuals in regard to their structure and function.Age-and ethnicity-specific brain templates facilitate establishing unbiased pediatric brain growth charts,indicating the necessity of the brain charts and brain templates generated in tandem.These templates and growth charts as well as related codes have been made freely available to the public for open neuroscience(https://github.com/zuoxinian/CCS/tree/master/H3/Growth Charts).
