Nomogram for predicting overall survival time of patients with stage IV colorectal cancer.

Background: Prognosis varies among stage IV colorectal cancer (CRC). Our study aimed to build a robust prognostic nomogram for predicting overall survival (OS) of patients with stage IV CRC in order to provide evidence for individualized treatment.

Method: We collected the information of 16,283 patients with stage IV CRC in the Surveillance, Epidemiology, and End Results (SEER) database and then randomized these patients in a ratio of 7:3 into a training cohort and an internal validation cohort.

Downregulation of microRNA-124-3p promotes subventricular zone neural stem cell activation by enhancing the function of BDNF downstream pathways after traumatic brain injury in adult rats.

Aims: In this study, the effect of intracerebral ventricle injection with a miR-124-3p agomir or antagomir on prognosis and on subventricular zone (SVZ) neural stem cells (NSCs) in adult rats with moderate traumatic brain injury (TBI) was investigated.

Methods: Model rats with moderate controlled cortical impact (CCI) were established and verified as described previously. The dynamic changes in miR-124-3p and the status of NSCs in the SVZ were analyzed.

Increased risk of colorectal neoplasia in inflammatory bowel disease patients with post-inflammatory polyps: A systematic review and meta-analysis.

Background: Inflammatory bowel disease (IBD) patients with post-inflammatory polyps (PIPs) may carry an increased risk of colorectal neoplasia (CRN) including dysplasia and cancer. Current guidelines recommend active colonoscopy follow-up for these patients. However, the evidence for guidelines is still poor.

The different role of YKL-40 in glioblastoma is a function of MGMT promoter methylation status.

Inter- and intratumoral heterogeneity is a hallmark of glioblastoma (GBM) that facilitates recurrence, treatment resistance, and worse prognosis. O-methylguanine-DNA methyltransferase (MGMT) promoter methylation is a significant prognostic marker for Temozolomide (TMZ) resistance in GBM patients. YKL-40 is a molecular marker for the mesenchymal subtype of GBMs and is responsible for TMZ resistance.

Strategies and recommendations for the management of gastrointestinal surgery during the COVID-19 pandemic: experience shared by Chinese surgeons.

Novel coronavirus disease-2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is an ongoing public-health pandemic worldwide. Although SARS-CoV-2 has been known to spread primarily through respiratory droplets, recent evidence also supports fecal/oral as an additional route of transmission, raising concerns over gastrointestinal (GI) transmission of the infection. Herein, we, as the front-line Chinese GI surgeons, would like to share our experience and lessons in the combat against COVID-19.

Antitumor immunity of low-dose cyclophosphamide: changes in T cells and cytokines TGF-beta and IL-10 in mice with colon-cancer liver metastasis.

Background: The tumor immune microenvironment is one of the most important prognostic factors in liver metastasis from colorectal cancer. Low-dose cyclophosphamide (CTX) is widely believed to be involved in the modulation of the immune system. However, the underlying mechanism of low-dose CTX remains unknown.

Preoperative assessment of lymph node metastasis in clinically node-negative rectal cancer patients based on a nomogram consisting of five clinical factors.

Background: Currently, reliable approaches for accurate assessment of lymph node metastases (LNM), which is an important indication of preoperative chemoradiotherapy (CRT), are not available for clinically node-negative rectal cancer patients. This study aims to identify clinical factors associated with LNM and to establish a nomogram for LNM prediction in clinically node-negative rectal cancer patients.

Methods: The least absolute shrinkage and selection operator (LASSO) aggression and multivariate logistic regression analyses were applied to identify clinical factors associated with LNM.

Bone marrow-derived CXCR4-overexpressing MSCs display increased homing to intestine and ameliorate colitis-associated tumorigenesis in mice.

Background And Objective: Increasing interest has developed in the therapeutic potential of bone marrow-derived mesenchymal stem cells (MSCs) for the treatment of inflammatory bowel disease (IBD) and IBD-induced cancer. However, whether MSCs have the ability to suppress or promote tumor development remains controversial. The stromal cell-derived factor 1 (SDF-1)/C-X-C chemokine receptor type 4 (CXCR4) axis is well known to play a critical role in the homing of MSCs.

Engulfment and Cell Motility Protein 1 Protects Against DSS-induced Colonic Injury in Mice via Rac1 Activation.

Background And Aims: Mucosal healing is an emerging therapeutic goal that could result in clinical remission of inflammatory bowel disease [IBD]. We sought to determine the role of engulfment and cell motility protein 1 [ELMO1] in wound healing in vitro and in vivo and to investigate the underlying pathways.

Methods: RNA transcriptome sequencing was performed to detect the expression profiles of mRNA between inflamed tissues and corresponding non-inflamed tissues of IBD patients, followed by Gene Expression Omnibus [GEO] datasets and western blot analysis.

Male gender is associated with an increased risk of anastomotic leak in rectal cancer patients after total mesorectal excision.

Background: The impact of a patient's gender on the development of anastomotic leak (AL) in rectal cancer patients following total mesorectal excision (TME) remains controversial. The aim of this study was to evaluate the association between patients' gender and the risk of AL.

Methods: All rectal cancer patients following TME with a primary anastomosis during the study period from 2010 to 2014 were examined.

MicroRNA-143 Targets ATG2B to Inhibit Autophagy and Increase Inflammatory Responses in Crohn's Disease.

Background: Dysfunctional autophagy is recognized as a contributing factor in many chronic inflammatory diseases, including Crohn's disease (CD). Genetic analyses have found that microRNA (miRNA) levels are altered in the intestinal tissues of CD patients.

Methods: The Sequencing Alternative Poly-Adenylation Sites (SAPAS) method was used to compare the 3' end of the total mRNA sequence of 3 surgical specimens of CD patients (including inflamed tissues and corresponding noninflamed tissues in each case).

SATB2 is a Promising Biomarker for Identifying a Colorectal Origin for Liver Metastatic Adenocarcinomas.

SATB2 (Special AT-rich sequence-binding protein 2) has recently been shown to be a specific biomarker of colorectal cancer (CRC). The aim of this study was to investigate the diagnostic potential of SATB2 as a means of detecting a CRC origin for liver metastases. SATB2 expression was examined in a resection cohort of 101 CRC and 273 non-CRC adenocarcinoma samples using immunohistochemistry (IHC).

Conversion is a risk factor for postoperative anastomotic leak in rectal cancer patients - A retrospective cohort study.

Aim: The impact of conversion from laparoscopic surgery to laparotomy on the development of anastomotic leak (AL) in rectal cancer patients following laparoscopic low anterior resection (LAR) with total mesorectal excision (TME) has not been evaluated. The aim of this study was to evaluate the impact of conversion on the risk of AL and develop a prediction nomogram for postoperative AL.

Methods: All rectal cancer patients following laparoscopic LAR with TME from January 2010 to October 2014 were enrolled in the primary cohort.

Enteral nutrition is associated with a decreased risk of surgical intervention in Crohn's disease patients with spontaneous intra-abdominal abscess.

Background: The impact of enteral nutrition (EN) on surgical risk in Crohn's disease (CD) patients suffering from spontaneous intra-abdominal abscess (IAA) was evaluated.

Methods: CD patients diagnosed with spontaneous IAA from 2008 to 2015 were included in the study. The impact of EN on surgical risk was evaluated using both univariate and multivariate analyses.

Urinary metal concentrations in relation to semen quality: a cross-sectional study in China.

Exposure to metals, including essential and nonessential elements, is widespread and may be associated with altered semen quality. This study aimed to examine the association between urinary metal concentrations and semen quality in a Chinese population. We measured semen quality parameters (sperm concentration, count, motility, normal morphology, and abnormal head) and 13 metals [arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), lead (Pb), manganese (Mn), molybdenum (Mo), mercury (Hg), nickel (Ni), selenium (Se), and zinc (Zn)] in the urine of 394 men from an infertility clinic.

Hispidulin enhances the anti-tumor effects of temozolomide in glioblastoma by activating AMPK.

Glioblastoma is an aggressive malignancy, which is notorious for its poor prognosis. Although Temozolomide (TMZ) has been showed to be an effective chemotherapeutic agent for glioblastoma treatment, the response rate is far from satisfactory. As a natural compound with anti-cancer activity against a variety of cancers, Hispidulin is a good candidate drug for combination therapy.

Comparison of short- and long-term outcomes after extralevator abdominoperineal excision and standard abdominoperineal excision for rectal cancer: a systematic review and meta-analysis.

Purpose: Whether the introduction of extralevator abdominoperineal excision (ELAPE) improves survival and safety remains controversial. We conducted a systematic review and meta-analysis of all comparative studies to define the efficacy and safety of ELAPE and standard abdominoperineal excision (APE).

Materials And Methods: A search for all major databases and relevant journals from inception to July 2013 without restriction on languages or regions was performed.

Allicin protects rat cortical neurons against mechanical trauma injury by regulating nitric oxide synthase pathways.

Allicin, a small molecule that is responsible for the typical smell and most of the functions of garlic, possesses a broad spectrum of pharmacological activities and is considered to have therapeutic potential in many pathologic conditions. In the present study, we investigated the potential protective effect of allicin in an in vitro model of traumatic brain injury (TBI) using primary cultured rat cortical neurons. We found that allicin treatment significantly reduced mechanical trauma-induced lactate dehydrogenase (LDH) release and inhibited apoptotic neuronal death in a dose-dependent manner.

[Comparison of local immune microenvironment between liver-metastasis colorectal cancer and non-liver-metastasis colorectal cancer].

Objective: To investigate the difference of local immune microenvironment in primary tumors between liver-metastasis and non-liver-metastasis cohort in stage III to IIII colorectal cancer patients.

Methods: Tumor samples from 167 patients of colorectal cancer were harvested, who received tumor resection for the first time in The First Affiliated Hospital of Sun Yat-sen University from 2000 to 2005. Patients were divided into two groups according to liver metastasis or not.

[Interpretation of some hot topics in consensus on diagnosis and treatment of inflammatory bowel disease in China(2012)].

Inflammatory bowel disease (IBD) has become a common ailment in China in the past decade. At present, the level of diagnosis and treatment of inflammatory bowel disease in China still falls behind Western countries, while the incidence increases rapidly. Chinese IBD Working Group made a new consensus on diagnosis and treatment of inflammatory bowel disease in 2012.

[Laparoscopic colorectomy versus open colorectomy for elderly patients over 80 years old: a meta-analysis of safety and efficacy].

Objective: To compare the clinical safety and efficacy of laparoscopic versus open colorectal resection in octogenarians. Methods Studies comparing laparoscopic colorectal resection with open colorectal resection in octogenarians were identified from the Medline, Embase, Ovid, and Cochrane databases from 1990 to 2012. The methodological quality of the selected studies was assessed to determine studies suitable for inclusion.

[Meta-analysis of efficacy and safety on neoadjuvant therapy for rectal cancer].

Objective: To assess the value of neoadjuvant therapy for resectable rectal cancer and the impact on postoperative complications.

Methods: Literature search was performed in PubMed, Ovid, Web of Science, Springer-Link and Elsevier ScienceDirect for randomized controlled trials published before May 2010 that compared neoadjuvant therapy with surgery alone or postoperative adjuvant therapy. The computer search was supplemented with hand search of reference lists for available primary studies.

[Curative effect analysis of radical surgery for colon cancer invading duodenum].

Objective: To discuss the clinicopathological characteristics and access the immediate- and long-term outcome of radical surgery in patients with colon cancer invading duodenum.

Methods: A retrospective review of 19 patients with colon cancer invading duodenum underwent radical surgery between 1995 and 2010 was performed. There were 7 male and 12 female, age ranged from 36 to 73 years with an average of 56 years.

Chronic hepatic viral infection could be a protective factor for colorectal cancer liver metastases: analysis in a single institute.

Background/aims: We tested the hypothesis that chronic hepatic virus infection could reduce the occurrence of colorectal cancer liver metastases (CLM) and investigated CLM patients' survival prolonged in positive viral infection.

Methodology: 2868 colorectal cancer patients were divided into positive-infection and non-infection groups. Clinical variables, incidence of liver metastases and survival between the groups were respectively analyzed.

Systemic infusion of bone marrow-derived mesenchymal stem cells for treatment of experimental colitis in mice.

Background And Aims: The anti-inflammatory and reparative properties of mesenchymal stem cells (MSCs) make them a promising tool for treating immune-mediated and inflammatory disorders. However, whether MSCs can be used for treatment of inflammatory bowel disease (IBD) still remains unclear. In this study, a dextran sulfate sodium (DSS)-induced mouse colitis model was used to test the hypothesis that infused bone marrow-derived MSCs could exert anti-inflammatory effects against experimental colitis.