Publications by authors named "Yan-Li Dang"

Background: The literature on post-hepatectomy bile duct injury (PHBDI) is limited, lacking large sample retrospective studies and high-quality experience summaries. Therefore, we reported a special case of iatrogenic bile duct injury caused by Glissonean pedicle transection with endovascular gastrointestinal anastomosis (endo-GIA) during a right hepatectomy, analyzed the causes of this injury, and summarized the experience with this patient.

Case Summary: We present the case of a 66-year-old woman with recurrent abdominal pain and cholangitis due to intrahepatic cholangiectasis (Caroli's disease).

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Background: Extra-hepatic bile duct injury (EHBDI) is very rare among all blunt abdominal injuries. According to literature statistics, it only accounts for 3%-5% of abdominal injuries, most of which are combined injuries. Isolated EHBDI is more rare, with a special injury mechanism, clinical presentation and treatment strategy, so missed diagnosis easily occurs.

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The placenta is crucial for a successful pregnancy and the health of both the fetus and the pregnant woman. However, how the human trophoblast lineage is regulated, including the categorization of the placental cell subtypes is poorly understood. Here we performed single-cell RNA sequencing (RNA-seq) on sorted placental cells from first- and second-trimester human placentas.

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Proper differentiation of trophoblast cells in the human placenta is a prerequisite for a successful pregnancy, and dysregulation of this process may lead to malignant pregnancy outcomes, such as preeclampsia. Finding specific markers for different types of trophoblast cells is essential for understanding trophoblast differentiation. Here, we report that placenta-specific protein 8 (PLAC8) is specifically expressed in the interstitial extravillous trophoblast cells (iEVTs) on the fetomaternal interface.

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Article Synopsis
  • Human trophoblast syncytialization is a critical yet poorly understood cell fusion process in placental development.
  • Researchers utilized primary cultured cytotrophoblast cells and BeWo choriocarcinoma cells to study the fusion mechanism, employing a biphasic approach to facilitate their combination.
  • For the first time, live-cell imaging was used to visualize the fusion process, revealing cellular dynamics like finger-like protrusions and cytoplasmic exchanges, paving the way for deeper molecular understanding of syncytialization in placentas.
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Objective: To establish the serum proteomic models for the identification of premature delivery with inflammation or non-inflammation.

Methods: The laboring patients from 2008 to 2010 at our hospital were divided into 5 groups according to placental pathology, including inflammatory preterm group, non-inflammatory preterm group and blind test group (n = 50 each). The control group was normal full-term.

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Objective: To study the health conditions of pregnant migrant women in some suburban areas of Beijing by comparing a variety of pathological, physiological and social factors and exploring the relevant factors associated with preterm birth so as to prevent effectively preterm birth.

Methods: A total of 279 cases of pregnancy in preterm birth at out hospital from January 2004 to December 2008 were reviewed. The date of maternal age, parity, prenatal examinations, history of vaginitis, history of chorioamnionitis, premature rupture of membranes, occupation, residing location and education status were recorded.

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Article Synopsis
  • The study aimed to analyze how different factors influence the occurrence of subclinical chorioamnionitis (SCCAS) in pregnant women who are having full-term births.
  • Out of 796 cases reviewed, the incidence of SCCAS was found to be approximately 39.95%, with higher rates observed in women without prenatal care, those with a history of vaginitis, or premature rupture of membranes.
  • The research concluded that even asymptomatic full-term pregnant women could be affected by chorioamnionitis, and specific risk factors such as lack of prenatal care and certain medical histories are linked to higher incidence rates.
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Dysfunction of CFTR in cystic fibrosis (CF) airway epithelium perturbs the normal regulation of ion transport, leading to a reduced volume of airway surface liquid (ASL), mucus dehydration, decreased mucus transport, and mucus plugging of the airways. CFTR is normally expressed in ciliated epithelial cells of the surface and submucosal gland ductal epithelium and submucosal gland acinar cells. Critical questions for the development of gene transfer strategies for CF airway disease are what airway regions require CFTR function and how many epithelial cells require CFTR expression to restore normal ASL volume regulation and mucus transport to CF airway epithelium? An in vitro model of human CF ciliated surface airway epithelium (CF HAE) was used to test whether a human parainfluenza virus (PIV) vector engineered to express CFTR (PIVCFTR) could deliver sufficient CFTR to CF HAE to restore mucus transport, thus correcting the CF phenotype.

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Aim: To investigate the expression of p27 protein and its significance in cervical carcinoma tissues.

Methods: The p27 protein expression in 26 normal cervical tissues and 48 cervical carcinoma tissues was detected by streptavidin-peroxidase staining(SP method).

Results: The positive rate of p27 protein expression in 48 cervical carcinoma tissues was 39.

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