Publications by authors named "Dongming Lai"

Background: Colorectal cancer is the third most prevalent cancer across the globe. Despite a diversity of treatment methods, the recurrence and mortality rates of the disease remain high. Recent studies have revealed a close association of the gut microbiota with the occurrence, development, treatment response, and prognosis of colorectal cancer.

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Tumor-associated macrophages (TAM) subtypes have been shown to impact cancer prognosis and resistance to immunotherapy. However, there is still a lack of systematic investigation into their molecular characteristics and clinical relevance in different cancer types. Single-cell RNA sequencing data from three different tumor types were used to cluster and type macrophages.

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Cancer cachexia-associated muscle wasting as a multifactorial wasting syndrome, is an important factor affecting the long-term survival rate of tumor patients. Photobiomodulation therapy (PBMT) has emerged as a promising tool to cure and prevent many diseases. However, the effect of PBMT on skeletal muscle atrophy during cancer progression has not been fully demonstrated yet.

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HIF-1α plays a crucial part in hypoxia response by transcriptionally upregulating genes to adapt the hypoxic condition. HIF-1α is under severe cellular control as its exceptional activation is always associated with tumorigenesis and tumor progression. Here, we report L3MBTL3 serves as a novel negative regulator of HIF-1α.

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LIGHT is a member of the TNF superfamily and a proinflammatory cytokine involved in liver pathogenesis. Many liver diseases involve activation of Toll-like receptor 3 (TLR3), which is activated by double-stranded RNA (dsRNA). However, the involvement of LIGHT in TLR3 implicated liver diseases is not clear.

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Colorectal cancer (CRC) is considered to be a leading cause of cancer-related death. Centromere protein O (CENPO) can prevent the separation of sister chromatids and cell death after spindle injury. Nevertheless, the role of CENPO in CRC has not been reported.

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At present, colorectal cancer (CRC) has become a serious threat to human health in the world. Dipeptidyl peptidase 3 (DPP3) is a zinc-dependent hydrolase that may be involved in several physiological processes. However, whether DPP3 affects the development and progression of CRC remains a mystery.

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Colorectal cancer (CRC) is one of the most common malignancies and most of the patients diagnosed with advanced CRC have unsatisfactory treatment effect and poor prognosis. The purpose of this study was to investigate the effect of CCNI2 on the development of CRC. In this sutdy, immunohistochemical staining was used to detect CCNI2 expression levels in clinical samples, meanwhile, the Kaplan-Meier survival analysis was conducted.

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Objective: To evaluate the clinical application of carbon nanoparticles labeled lymph node staining in curative laparoscopic resection for colorectal carcinoma.

Methods: Sixty-five patients undergoing curative laparoscopic resection for colorectal carcinoma in the Sun Yat-sen Memorial Hospital between September 2011 and June 2013 were prospectively enrolled and randomly divided into label group (with carbon nanoparticles, n=34) and control group (without carbon nanoparticles, n=31). Association between labeled lymph nodes and metastasis was analyzed.

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Purpose: To construct a new biomaterial-small intestinal submucosa coated with gelatin hydrogel incorporating basic fibroblast growth factor, and to evaluate the new biomaterials for the reconstruction of abdominal wall defects.

Methods: Thirty six Sprague-Dawley rats were used in the animal experiments and randomly divided into three groups. The new biomaterial was constructed by combining small intestinal submucosa with gelatin hydrogel for basic fibroblast growth factor release.

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Purpose: The purpose of this study was to report the imaging findings of malignant pancreatic solid pseudopapillary tumors (SPTs) with macroscopic venous tumor thrombi.

Methods: The clinical features and imaging findings of 4 cases of malignant pancreatic SPT with venous tumor thrombi were retrospectively reviewed.

Results: The tumor thrombi were located in the splenic vein (n = 3) or the main portal vein and the proximal splenic vein (n = 1).

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The present study investigated bladder and urogenital fatty fascial compartment (UFFC) variations during bladder filling in an attempt to identify other possible causes of hernia repair-related bladder injury besides mesh migration. The study included 30 patients scheduled for abdominal computed tomography (CT) scan for nonhernia diseases. Sixty-four-slice CT scan was performed immediately after urination and no more than 30 minutes later.

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Aim: To retrospectively analyze the imaging features of hepatic focal nodular hyperplasia (FNH) in children on dynamic contrast-enhanced multi-slice computed tomography (MSCT) and computed tomography angiography (CTA) images.

Methods: From September 1999 to April 2012, a total of 218 cases of hepatic FNH were confirmed by either surgical resection or biopsy in the Sun Yat-sen Memorial Hospital of Sun Yat-sen University and the Cancer center of Sun Yat-sen University, including 12 cases (5.5%) of FNH in children (age ≤ 18 years old).

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Background: To retrospectively review the MRI imaging features of adult choledochal cysts associated with biliary malignancy.

Patients And Methods: Ten out of 72 cases of adult choledochal cysts were found to be associated with biliary malignancy between January 1, 2003 and April 1, 2011 in our hospital database. The following MRI findings of these ten patients were retrospectively reviewed: the type of choledochal cysts, the presence of anomalous union of the pancreaticobiliary duct (AUPBD), manifestations of biliary malignancy, and concomitant findings.

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Article Synopsis
  • The study aims to compare two surgical techniques, duct-to-mucosa and end-to-side pancreaticojejunostomy, used in pancreaticoduodenectomy due to high complication rates.
  • Over six years, 240 patients were reviewed; the data showed no significant differences between the two groups in terms of demographics, intraoperative factors, or postoperative complications.
  • Both techniques resulted in similar rates of pancreatic fistula, overall complications, and hospital stays, indicating no clear advantage of one technique over the other.
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Aim: To investigate the clinicopathologic features of bile duct tumor thrombus (BDTT) occurrence after treatment of primary small hepatocellular carcinoma (sHCC).

Methods: A total of 423 patients with primary sHCC admitted to our hospital underwent surgical resection or local ablation. During follow-up, only six patients were hospitalized due to obstructive jaundice, which occurred 5-76 mo after initial treatment.

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Objective: To evaluate whether the use of fat clearance technique improves the accuracy of staging for colon cancer.

Methods: Between June 2007 and December 2008, surgical specimens of 91 patients with colon cancer were procured. Between June 2007 and January 2008, routine technique for lymph node harvest including visualization and tactile sensation was used in 45 patients (conventional group), while lymph nodes of 46 patients between February 2008 and December 2008 were examined using fat clearance technique(fat clearance group).

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Objective: To investigate the influence of lymph nodes detection on the pathological staging in rectal cancer specimens.

Methods: From January 2007 to June 2008, 75 patients with rectal cancer who underwent total mesorectal excision were randomly divided into two groups: conventional group (n = 39), in which lymph nodes were detected by sight and palpation; fat clearance group (n = 36), in which lymph nodes were harvested after the specimens immersed in a fat clearance solution for 24 hours. The lymph node number harvested was compared between the two groups, and metastasis of the lymph nodes and its impact on the pathologic staging was analyzed in the two groups.

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Objective: To discuss the operation skills and evaluate the effects of open total extraperitoneal herniorrhaphy for inguinal hernia via a ventral midline incision.

Methods: From June 2008 to December 2009, 106 patients with inguinal hernia received open total extraperitoneal herniorrhaphy via a ventral midline incision, the clinical data were analyzed retrospectively.

Results: Of the patients, 86 cases were male, 20 were female, the mean age was 60.

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Objective: To compare fat clearance and fat lucidification in the examination of rectal cancer specimen, and to study the distribution pattern of lymph nodes in rectal cancer specimen.

Method: Between January 2007 and December 2007, sixty-four cases undergone total mesorectal excision were divided into two groups. The fat clearance technique was used to examine the specimens in one group, while fat lucidification was used in the other.

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Background: The biofragmentable anastomosis ring (BAR) is a simple alternative device to create intestinal anastomosis. Our study was designed to evaluate the clinical value of BAR in intestinal anastomosis.

Methods: A total of 167 patients performed intestinal anastomosis from January 2002 to February 2006 were randomized to BAR group (n = 82) and manual suture group (n = 85) as control.

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Objective: To investigate and compare the clinical effects of procedure for prolapse and hemorrhoids (PPH) and Ligasure technique (LT) for the treatment of severe hemorrhoids.

Methods: Patients with prolapsed hemorrhoids were randomly divided into two groups treated with PPH (n=44) and LT (n=42). The outcomes were evaluated postoperatively (i.

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