Browsing by Author "Chaemsaithong, Piya"
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- ItemBacteria and endotoxin in meconium-stained amniotic fluid at term : Could intra-amniotic infection cause meconium passage?(2014) Romero, Roberto; Yoon, Bo Hyun; Chaemsaithong, Piya; Cortez, Joséf; Park, ChanWook; González Pérez, Rogelio Iván; Behnke, Ernesto; Hassan, Sonia, S.; Chaiworapongsa, Tinnakorn,; Yeo, Lami
- ItemClinical chorioamnionitis at term II : the intra-amniotic inflammatory response(2016) Romero, Roberto; Chaemsaithong, Piya; Steven J. Korzeniewski; Tarca, Adi L.; Bhatti, Gaurav; Xu, Zhonghui; Kusanovic, Juan Pedro
- ItemClinical chorioamnionitis at term II: The intra-amniotic inflammatory response(2016) Romero, Roberto; Chaemsaithong, Piya; Korzeniewski, Steven J.; Tarca, Adi L.; Bhatti, Gaurav; Xu, Zhonghui; Kusanovic, Juan Pedro; Dong, Zhong; Docheva, Nikolina; Martínez Varea, Alicia; Yoon, Bo Hyun; Hassan, Sonia S.; Chaiworapongsa, Tinnakorn; Yeo, LamiObjective: Recent studies indicate that clinical chorioamnionitis is a heterogeneous condition and only approximately one-half of the patients have bacteria in the amniotic cavity, which is often associated with intra-amniotic inflammation. The objective of this study is to characterize the nature of the inflammatory response within the amniotic cavity in patients with clinical chorioamnionitis at term according to the presence or absence of 1) bacteria in the amniotic cavity and 2) intra-amniotic inflammation. Materials and methods: A retrospective cross-sectional case-control study was conducted to examine cytokine and chemokine concentrations in the amniotic fluid (AF). Cases consisted of women with clinical chorioamnionitis at term (n=45). Controls were women with uncomplicated pregnancies at term who did not have intra-amniotic inflammation and were in labor (n=24). Women with clinical chorioamnionitis were classified according to the results of AF cultures, broad-range polymerase chain reaction coupled with electrospray ionization mass spectrometry, and AF concentration of interleukin-6 (IL-6) into those: 1) without intra-amniotic inflammation, 2) with microbial-associated intra-amniotic inflammation, and 3) with intra-amniotic inflammation without detectable bacteria. The AF concentrations of 29 cytokines/chemokines were determined using sensitive and specific V-PLEX immunoassays. Results: 1) The AF concentrations of pro- and anti-inflammatory cytokines/chemokines such as interferon gamma (IFN-γ), tumor necrosis factor alpha (TNF-α), interleukin-4 (IL-4), macrophage inflammatory protein-1 beta (MIP-1β), and interleukin-8 (IL-8) (except Eotaxin-3) were significantly higher in women with clinical chorioamnionitis at term than in controls (term labor without intra-amniotic inflammation); 2) patients with microbial-associated intra-amniotic inflammation, and those with intra-amniotic inflammation without detectable bacteria, had a dramatic differential expression of cytokines and chemokines in AF compared to patients with spontaneous labor without intra-amniotic inflammation. However, no difference could be detected in the pattern of the intra-amniotic inflammatory response between patients with intra-amniotic inflammation with and without detectable bacteria; and 3) in patients with clinical chorioamnionitis at term but without intra-amniotic inflammation, the behavior of cytokines and chemokines in the AF was similar to those in spontaneous labor at term. Conclusions: Patients with clinical chorioamnionitis who had microbial-associated intra-amniotic inflammation or intra-amniotic inflammation without detectable bacteria had a dramatic upregulation of the intra-amniotic inflammatory response assessed by amniotic fluid concentrations of cytokines. A subset of patients with term clinical chorioamnionitis does not have intra-amniotic infection/inflammation, as demonstrated by elevated AF concentrations of inflammation-related proteins, when compared to women in term labor with uncomplicated pregnancies, suggesting over-diagnosis. These observations constitute the first characterization of the cytokine/chemokine network in the amniotic cavity of patients with clinical chorioamnionitis at term.
- ItemClinical chorioamnionitis at term VIII: a rapid MMP-8 test for the identification of intra-amniotic inflammation(2017) Chaiyasit, Noppadol; Romero, Roberto; Chaemsaithong, Piya; Docheva, Nikolina; Bhatti, Gaurav; Kusanovic, Juan Pedro; Dong, Zhong; Yeo, Lami; Pacora, Percy; Hassan,Sonia S.; Erez, Offer
- ItemDeciphering maternal-fetal cross-talk in the human placenta during parturition using single-cell RNA sequencing(2024) Garcia-Flores, Valeria; Romero, Roberto; Tarca, Adi L.; Peyvandipour, Azam; Xu, Yi; Galaz, Jose; Miller, Derek; Chaiworapongsa, Tinnakorn; Chaemsaithong, Piya; Berry, Stanley M.; Awonuga, Awoniyi O.; Bryant, David R.; Pique-Regi, Roger; Gomez-Lopez, NardhyLabor is a complex physiological process requiring a well-orchestrated dialogue between the mother and fetus. However, the cellular contributions and communications that facilitate maternal-fetal cross-talk in labor have not been fully elucidated. Here, single-cell RNA sequencing (scRNA-seq) was applied to decipher maternal-fetal signaling in the human placenta during term labor. First, a single-cell atlas of the human placenta was established, demonstrating that maternal and fetal cell types underwent changes in transcriptomic activity during labor. Cell types most affected by labor were fetal stromal and maternal decidual cells in the chorioamniotic membranes (CAMs) and maternal and fetal myeloid cells in the placenta. Cell-cell interaction analyses showed that CAM and placental cell types participated in labor-driven maternal and fetal signaling, including the collagen, C-X-C motif ligand (CXCL), tumor necrosis factor (TNF), galectin, and interleukin-6 (IL-6) pathways. Integration of scRNA-seq data with publicly available bulk transcriptomic data showed that placenta-derived scRNA-seq signatures could be monitored in the maternal circulation throughout gestation and in labor. Moreover, comparative analysis revealed that placenta-derived signatures in term labor were mirrored by those in spontaneous preterm labor and birth. Furthermore, we demonstrated that early in gestation, labor-specific, placenta-derived signatures could be detected in the circulation of women destined to undergo spontaneous preterm birth, with either intact or prelabor ruptured membranes. Collectively, our findings provide insight into the maternal-fetal cross-talk of human parturition and suggest that placenta-derived single-cell signatures can aid in the development of noninvasive biomarkers for the prediction of preterm birth.
- ItemDetection of Anti-HLA Antibodies in Maternal Blood in the Second Trimester to Identify Patients at Risk of Antibody-Mediated Maternal Anti-Fetal Rejection and Spontaneous Preterm Delivery(2013) Lee, JoonHo; Romero, Roberto; Xu, Yi; Miranda, Jezid; Yoo, Wonsuk; Chaemsaithong, Piya; Kusanovic, Juan Pedro; Chaiworapongsa, Tinnakorn; Tarca, Adi L.; Korzeniewski, Steven J.; Hassan, Sonia S.; Than, Nandor Gabor; Yoon, Bo Hyun; Kim, Chong Jai
- ItemSterile and microbial-associated intra-amniotic inflammation in preterm prelabor rupture of membranes(2015) Romero, Roberto; Miranda, Jezid; Chaemsaithong, Piya; Chaiworapongsa, Tinnakorn; Kusanovic, Juan Pedro; Dong, Zhong; Ahmed, Ahmed I.; Shaman, Majid; Lannaman, Kia; Yoon, Bo Huyun; Hassan, Sonia S.; Kim, Chong Jai; Korzeniewski, Steven Jai; Yeo, Lami; Kim, Yeon Mee
- ItemToward a new taxonomy of obstetrical disease: improved performance of maternal blood biomarkers for the great obstetrical syndromes when classified according to placental pathology(2022) Romero, Roberto; Jung, Eunjung; Chaiworapongsa, Tinnakorn; Erez, Offer; Gudicha, Dereje W.; Kim, Yeon Mee; Kim, Jung-Sun; Kim, Bomi; Kusanovic, Juan Pedro; Gotsch, Francesca; Taran, Andreea B.; Yoon, Bo Hyun; Hassan, Sonia S.; Hsu, Chaur-Dong; Chaemsaithong, Piya; Gomez-Lopez, Nardhy; Yeo, Lami; Kim, Chong Jai; Tarca, Adi L.BACKGROUND: The major challenge for obstetrics is the prediction and prevention of the great obstetrical syndromes. We propose that defining obstetrical diseases by the combination of clinical presentation and disease mechanisms as inferred by placental pathology will aid in the discovery of biomarkers and add specificity to those already known.