Publications by authors named "Chi-Chun Liao"

Background/ Purpose: Accuracy of digital implant impressions was considered questionable due to the lack of anatomical reference points between implants and the similarities in scan body morphology, which lead to the purpose of this research is to propose a simple and convenient technique to improve the accuracy of scanning.

Materials And Methods: Four implant analogues (teeth: 15, 17, 24, and 27) were inserted into a stone model of a partially edentulous maxilla; two implants were inserted on each side, creating a three-unit span and a four-unit span. The model was scanned using a 3Shape E4 dental laboratory scanner for reference and a TRIOS 3 intraoral scanner for testing.

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The causes of implantation failure remain a black box in reproductive medicine. The exact mechanism behind the regulation of endometrial receptivity is still unknown. Epigenetic modifications influence gene expression patterns and may alter the receptivity of human endometrium.

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Adenomyosis is linked to dysmenorrhea and infertility. The pathogenesis of adenomyosis remains unclear, and little is known of the genetic and epigenetic changes in the eutopic endometrium in adenomyosis, which may predispose patients to the invasion and migration of endometrial tissues into the myometrium. Transcriptome studies have identified genes related to various cell behaviors but no targets for therapeutic intervention.

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Objective: Leiomyosarcoma and ovarian cancer are often diagnosed late due to the absence of initial symptoms. Patients seek help when abdominal distension occurs; this is associated with pelvic tumor and carcinomatosis. Initial imaging often reveals pelvic tumors with diffuse abdominal nodules; however, this imaging could be misleading, such as in the cases of splenosis.

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Background: Endometrial cancer is a common gynecologic cancer. Noninvasive molecular biomarkers for triage of high-risk patients for invasive procedures are needed. Based on the success of cytological Pap smear screening, cervical scrapings are a good source of DNA for molecular testing.

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Objective: To share our experience of transition from multiport to single-site robotic surgery for benign gynecological conditions as well as to assess the selection criteria of candidates for robotic single-site supracervical hysterectomy (RSSH).

Materials And Methods: A retrospective review was conducted on patients undergoing robotic supracervical hysterectomy by a single surgeon in a single institute between June 2014 and December 2017. Patients who underwent additional procedures along with supracervical hysterectomy and who had unexpectant corpus malignancy proved pathologically were excluded from comparisons between patients undergoing RSSH and robotic multiport supracervical hysterectomy (RMSH).

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DNA methylation alteration, such as global hypomethylation and localized hypermethylation, within the promoters of tumor suppressor genes, is an important risk factor in cervical cancer. The potential use of DNA methylation detection, in cervical cancer screening or triage of mildly abnormal cytology, has recently been demonstrated. In particular, PAX1 DNA methylation testing was approved as an adjunct to cytology, in Taiwan, and is now undergoing registration trials in China.

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Article Synopsis
  • * In cervical lesions, levels of TET1 and 5-hydroxymethylcytosine (5hmC) increase from normal tissues to low-grade and high-grade lesions, dropping in invasive cancer, suggesting a complex relationship with tumor progression.
  • * TET1 enhances stemness characteristics and inhibits the epithelial-mesenchymal transition (EMT) in HSIL cells, and its interaction with histone modifiers leads to gene silencing of ZEB1 and VIM by altering histone modifications.
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Precision medicine requires markers for therapeutic guidance. The purpose of this study was to determine whether epithelial ovarian cancer (EOC) epigenetics can lead to the identification of biomarkers for precision medicine. Through integrative methylomics, we discovered and validated the epigenetic signature of NEFH and HS3ST2 as an independent prognostic factor for type II EOC in our dataset (n = 84), and two independent methylomics datasets (total n = 467).

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Objective: Hypermethylation of human papillomavirus (HPV) and host genes has been reported in cervical cancer. However, the degree of methylation of different HPV types relative to the severity of the cervical lesions remains controversial. Studies of the degree of methylation associated with the host gene and the HPV genome to the severity of cervical lesions are rare.

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Objective: We aimed to compare the outcomes of in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) treatments in women of advanced age (>40 years) using anti-Müllerian hormone (AMH)-tailored ovarian stimulation protocols versus conventional protocols based on antral follicle count (AFC).

Materials And Methods: We retrospectively reviewed 210 women who underwent IVF/ICSI cycles: 116 women underwent stimulation protocols that were tailored to their AMH levels, whereas 94 women received treatment using conventional stimulation protocols based on AFC as the ovarian reserve marker.

Results: The following parameters were significantly higher in the AMH-tailored group than in the conventional group: initial and total doses (IU) of recombinant follicle-stimulating hormone (rFSH) used for stimulation (514.

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A simulation and experiment were performed to demonstrate that a laser using volume Bragg grating as one of the cavity mirrors can achieve lasing even if the laser cavity length exceeds the traditional stable cavity condition. The laser transverse mode changes from a Gaussian beam into a ring-shaped mode as the laser cavity length increases from stable to unstable cavity conditions. At the same time, the effective modal reflectivity is reduced as the cavity length increases.

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Background: Nurses are expected to discharge their duty of care effectively and professionally to prevent medical negligence. Only three articles have previously focused on medical negligence. Duty of care and medical negligence in nursing are topics that have been neglected in Taiwan.

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