Publications by authors named "Nian-Nian Chen"

Objectives: To screen biomarkers for forensic identification of acute myocardial infarction (AMI) by non-targeted metabolomic studies on changes of urine metabolites in rats with AMI.

Methods: The rat models of the sham surgery group, AMI group and hyperlipidemia + acute myocardial infarction (HAMI) group were established. Ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS) was used to analyze the changes of urine metabolic spectrometry in AMI rats.

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Objectives: To analyze the literature on artificial intelligence in forensic research from 2012 to 2022 in the Web of Science Core Collection Database, to explore research hotspots and developmental trends.

Methods: A total of 736 articles on artificial intelligence in forensic medicine in the Web of Science Core Collection Database from 2012 to 2022 were visualized and analyzed through the literature measuring tool CiteSpace. The authors, institution, country (region), title, journal, keywords, cited references and other information of relevant literatures were analyzed.

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Objectives: To explore the differential expression of messenger RNA (mRNA) in myocardial tissues of rats with sudden coronary death (SCD), and to provide ideas for the forensic identification of SCD.

Methods: The rat SCD model was established, and the transcriptome sequencing was performed by next-generation sequencing technology. Differentially expressed genes (DEGs) in myocardial tissues of SCD rats were screened by using the R package limma.

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Background: Depression is a common mental disorder and the diagnosis is still based on the descriptions of symptoms. Biomarkers can reveal disease characteristics for diagnosis, prognosis, and treatment. In recent years, many biomarkers relevant to the mechanisms of depression have been identified.

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Purpose: To identify the specific glucose metrics derived from maternal continuous glucose monitoring (CGM) data, which were associated with a higher percentile of offspring birth weight.

Methods: In this cohort study, we recruited singleton pregnant women with GDM who underwent CGM for 5-14 days at a mean of 28.8 gestational weeks between Jan 2017 and Nov 2018.

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The overall impact of maternal hyperglycemia on maternal and birth outcomes is largely underestimated, therefore quantifying the true burden of hyperglycemia in a whole population it is a challenging task. This study aims at examining the association between blood glucose concentration during pregnancy and a composite score of adverse maternal-birth outcomes in a large-scale prospective cohort study in China. Pregnant women within "the Born in Guangzhou Cohort Study" China who underwent a standard 75-g oral-glucose-tolerance-test (OGTT) between 22 and 28 gestational weeks were included.

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Preterm birth (PTB, <37 weeks) is the leading cause of death in children <5 years of age. Early risk prediction for PTB would enable early monitoring and intervention. However, such prediction models have been rarely reported, especially in low- and middle-income areas.

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Background: Few studies have examined the association between a composite measure of family socio-economic position (SEP) and depressive symptoms among Chinese pregnant women, nor any potential underlying mechanisms which may be amenable to preventative interventions.

Methods: We investigated the association between a composite SEP measure and depressive symptoms during early pregnancy, and tested for mediation by social support and moderation by parity in the Born in Guangzhou Cohort Study (n = 12,382) using adjusted logistic regression and causal mediation analysis.

Results: In this population, 18.

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The human gut microbiome can modulate metabolic health and affect insulin resistance, and it may play an important role in the etiology of gestational diabetes mellitus (GDM). Here, we compared the gut microbial composition of 43 GDM patients and 81 healthy pregnant women via whole-metagenome shotgun sequencing of their fecal samples, collected at 21-29 weeks, to explore associations between GDM and the composition of microbial taxonomic units and functional genes. A metagenome-wide association study identified 154 837 genes, which clustered into 129 metagenome linkage groups (MLGs) for species description, with significant relative abundance differences between the 2 cohorts.

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Incense burning is a popular practice in Asian and Arabic countries. Previous studies show that incense burning was associated with increased risks of adverse outcomes among non-pregnant population. However, very few studies explored its health effects among pregnant women, who are more susceptible to environmental stressor.

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Preterm birth is the leading cause of mortality and morbidity in infants. Its etiology is multifactorial with genes and immune homeostasis. The authors investigated whether prostaglandin (PG) synthesis related single nucleotide polymorphisms (SNPs) PLA2G4C rs1366442 and PLA2G4D rs4924618 were associated with the risk of spontaneous preterm birth (SPTB) in a Chinese population of 114 cases of SPTB and 250 controls of term delivery.

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Background: Tea, a common beverage, has been suggested to exhibit a number of health benefits. However, one of its active ingredients, caffeine, has been associated with preterm birth and low birthweight. We investigated whether tea consumption during early pregnancy is associated with an increased risk of preterm birth and abnormal fetal growth.

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The Born in Guangzhou Cohort Study (BIGCS) is a large-scale prospective observational study investigating the role of social, biological and environmental influences on pregnancy and child health and development in an urban setting in southern China. Pregnant women who reside in Guangzhou and who attend Guangzhou Women and Children's Medical Center (GWCMC) for antenatal care in early pregnancy (<20 weeks' gestation) are eligible for inclusion. Study recruitment commenced in February 2012, with an overall participation rate of 76.

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Article Synopsis
  • - The study investigated the links between specific genetic variations in the insulin-like growth factor (IGF) pathway, particularly IGF1 rs972936 and IGF1 receptor rs2229765, and the risk of spontaneous preterm birth (SPTB) among Chinese women.
  • - Results showed that certain genotypes of IGF1 rs972936 (GA and GA/AA) are associated with an increased risk of SPTB, while specific genotypes of IGF1R rs2229765 (GA and GA/AA) may lower the risk compared to others.
  • - The findings also indicated that the risk factors related to these genotypes interacted with maternal health factors, like gestational diabetes and pre-pregnancy
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This study aimed to examine the reproducibility and validity of a new food frequency questionnaire (FFQ) used in a birth cohort study to estimate the usual consumption frequencies of foods during pregnancy. The reference measure was the average of three inconsecutive 24 h diet recalls (24 HR) administrated between two FFQs, and the reproducibility was measured by repeating the first FFQ (FFQ1) approximately eight weeks later (FFQ2). A total of 210 pregnant women from the Born in Guangzhou Cohort Study (BIGCS) with full data were included in the analysis.

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Article Synopsis
  • There is limited research on how Chinese mothers' diets during pregnancy affect fetal growth, prompting a study on the impact of maternal dietary patterns on neonatal birth weight among 6954 mother-child pairs in China.
  • The study identified six dietary patterns: "Cereals, eggs, and Cantonese soups," "Dairy," "Fruits, nuts, and Cantonese desserts," "Meats," "Vegetables," and "Varied," with results showing that those in the "Fruits, nuts, and Cantonese desserts" and "Varied" groups had heavier infants compared to those on the "Cereals, eggs, and Cantonese soups" diet.
  • The findings suggest that a diet rich in fruits and nuts may lead to
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Background: To determine the presence of C1q and tumor necrosis factor-related protein 3 (CTRP3) in cord blood and its relationship with fetal growth among Chinese newborns.

Methods: This pilot study recruited 126 infants (small for gestational age [SGA], n=34; appropriate for gestational age [AGA], n=60; large for gestational age [LGA], n=32); cord blood CTRP3 levels were measured, and fetal growth parameters were collected.

Results: Median (25-75th percentile) CTRP3 levels in the SGA, AGA, and LGA groups were 297.

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Few studies have explored the relationship between dietary patterns and the risk of gestational diabetes mellitus (GDM). Evidence from non-Western areas is particularly lacking. In the present study, we aimed to examine the associations between dietary patterns and the risk of GDM in a Chinese population.

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Objective: To study the features, safe sex behavior and the size of men who have sex with men (MSM) population in actual and virtual venues in one city.

Methods: We carried out a cross-sectional study in actual and virtual venues, using the Estimated Size of Population from a Single Sample (LMS method) to estimate the size of MSM population.

Results: Most MSM in actual venues were 24 - 43 year olds and had received high school education, whereas in virtual venues, the majority of this population were younger than 29 years old and had higher education, including some college students.

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