Publications by authors named "Tong Ren"

Objective: It remains unclear whether modifying laparoscopic radical hysterectomy to adopt tumor-free principles can improve oncologic outcomes in patients with early-stage cervical cancer.

Methods: We performed a single-center retrospective cohort study of 276 patients with early-stage cervical cancer who were treated between January 2017 and January 2023, including 151 patients who underwent laparoscopic radical hysterectomy that incorporated modified tumor-free techniques (MTF group) and 125 patients who underwent conventional laparoscopic radical hysterectomy with a uterine manipulator and unprotected intracorporeal colpotomy (non-MTF group). Oncologic outcomes and perioperative results were analyzed using inverse probability treatment weighting (IPTW).

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Objective: The current landscape is characterized by a dearth of effective, safe, simple, and noninvasive methods for preventing pain following craniotomy. This clinical trial seeks to evaluate the efficacy profile of preemptive application of a topical 5% lidocaine patch in alleviating post-craniotomy pain.

Methods: This was a multi-centric, prospective randomized placebo-controlled triple-blind clinical trial.

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The kitchen-oil wastewater is characterized by a high concentration of organic matter, complex composition and refractory pollutants, which make wastewater treatment more difficult. Based on the study of using micro-electric field characteristic catalyst HCLL-S8-M to enhance the electron transfer between microorganisms in kitchen-oil wastewater which further improved the COD removal rate, we focus on the microbial community, intracellular metabolism and extracellular respiration, and make an in-depth analysis of the molecular biological mechanisms to microbial treatment in wastewater. It is found that electroactive microorganisms are enriched on the material surface, and the expression levels of cytochrome c and riboflavin genes related to electron transfer are up-regulated, confirming that the surface micro-electric field structure could enhance the electron transfer between microbial species and improve the efficiency of wastewater degradation.

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Since the emergence and rapid dissemination of Coronavirus disease 2019 (COVID-19), over 774 million individuals globally have achieved recovery to today. There is some case flashing into here and there all over the world. Neutralizing Antibody (NAb) against Severe Acute Respiratory Syndrome Coronavirus-Type 2 (SARS-CoV-2) play a paramount role in conferring effective and lasting protection for several months.

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Background Chimeric antigen receptor T-cell (CAR-T) therapy offers a promising treatment for certain malignancies but can be associated with complications. Malnutrition and cachexia are common in cancer patients and may worsen outcomes. This study investigated the impact of malnutrition on the length of hospital stay (LOS) in patients with hematologic malignancies undergoing CAR-T therapy.

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Tumor-associated macrophages (TAMs) undergo metabolic reprogramming, encompassing glucose, amino acid, fatty acid metabolism, tricarboxylic acid (TCA) cycle, purine metabolism, and autophagy, within the tumor microenvironment (TME). The metabolic interdependencies between TAMs and tumor cells critically influence macrophage recruitment, differentiation, M2 polarization, and secretion of epithelial-mesenchymal transition (EMT)-related factors, thereby activating intratumoral EMT pathways and enhancing tumor cell invasion and metastasis. Tumor cell metabolic alterations, including hypoxia, metabolite secretion, aerobic metabolism, and autophagy, affect the TME's metabolic landscape, driving macrophage recruitment, differentiation, M2 polarization, and metabolic reprogramming, ultimately facilitating EMT, invasion, and metastasis.

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Purpose: Because only a subset of cancer patients can benefit from immunotherapy, identifying predictive biomarkers of ICI therapy response is of utmost importance.

Methods: We analyzed the association between hemoglobin (HGB) levels and clinical outcomes in 1,479 ICIs-treated patients across 16 cancer types. We explored the dose-dependent associations between HGB levels and survival and immunotherapy response using the spline-based cox regression analysis.

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Article Synopsis
  • The study investigates the characteristics and treatment outcomes of patients with gestational trophoblastic neoplasia (GTN) who initially present with lung lesions and high hCG levels but without visible pelvic lesions.
  • The analysis included 40 patients from a larger group of 2358, revealing that most had solitary lung tumors, primarily epithelioid trophoblastic tumors (ETT), and those treated with only chemotherapy faced higher recurrence rates.
  • It concludes that surgical removal of lung lesions is critical, and if chemotherapy is used, it should involve a multidrug approach to reduce the risk of relapse.
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Unlabelled: Positron emission tomography (PET) has gained widespread acceptance as a valuable diagnostic tool for cancer. It is rare for a PET/CT scan to overlook the presence of metastatic disease. Sebaceous carcinoma is an uncommon malignant tumour that typically originates in the skin of the eyelid.

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  • Scientists studied a protein called NSUN2 that is important for adding a chemical tag (mC) to RNA, which is linked to breast cancer development.
  • They discovered that NSUN2 affects a gene called HGH1, which helps cancer grow, by changing the way the gene works and interacts with proteins.
  • Their research showed that blocking NSUN2 can slow down breast cancer growth, highlighting its role in this disease.
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Backgrounds: Intraplacental choriocarcinoma (IC) is an extremely rare subtype of gestational choriocarcinoma. The long-term follow-up and reproductive outcomes of IC patients remain unclear. Here, we report a series of 14 cases and conduct a literature review to assess the fertility and recurrence results of this rare disease.

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Ogilvie's syndrome, also known as acute colonic pseudo-obstruction, is often encountered in post-surgical patients or those with serious comorbidities requiring intensive care. For this reason, it has rarely been reported in patients younger than 50 years without any predisposing risk factors. Our case report highlights a unique case of Ogilvie's syndrome in a young female with no recent trauma or surgical history.

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Controlling electron transfer (ET) processes in donor-bridge-acceptor (DBA) compounds by mid-IR excitation can enhance our understanding of the ET dynamics and may find practical applications in molecular sensing and molecular-scale electronics. Alkyne moieties are attractive to serve as ET bridges, as they offer the possibility of fast ET and present convenient vibrational modes to perturb the ET dynamics. Yet, these bridges introduce complexity because of the strong torsion angle dependence of the ET rates and transition dipoles among electronic states and a shallow torsion barrier.

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Research Question: Are the observed associations between female reproductive factors and sex hormones with the risk of uterine leiomyoma truly causal associations?

Design: The putative causal relationships between female reproductive factors and sex hormones with uterine leiomyoma were investigated using two-sample Mendelian randomization. Statistics on exposure-associated genetic variants were obtained from genome-wide association studies (GWAS). The uterine leiomyoma GWAS from the FinnGen and FibroGENE consortia were used as outcome data for discovery and replication analyses, respectively.

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Introduction: In-center automated peritoneal dialysis (APD) has been more frequently adopted in clinical practice for maintenance PD patients in China. For a better understanding of its clinical uptake, this retrospective study reviewed incident PD patients for a period of 6 years, investigating the practice pattern of in-center APD, factors associated with the use of in-center APD, and report on the patient survival compared to the nonusers of APD among hospitalized PD patients.

Methods: This was a cohort study of all incident PD patients who met the inclusion criteria from January 1, 2013 to September 30, 2018, and were followed until death, cessation of PD, loss to follow-up, or December 31, 2018.

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In clinical trials involving patients with HER2 (ERBB2 receptor tyrosine kinase 2) positive gastric cancer, the efficacy of the HER2-targeted drug lapatinib has proven to be disappointingly poor. Under the persistent pressure exerted by targeted drug therapy, a subset of tumor cells exhibit acquired drug resistance through the activation of novel survival signaling cascades, alongside the proliferation of tumor cells that previously harbored mutations conferring resistance to the drug. This study was undertaken with the aim of elucidating in comprehensive detail the intricate mechanisms behind adaptive resistance and identifying novel therapeutic targets that hold promise in the development of effective lapatinib-based therapies for the specific subset of patients afflicted with gastric cancer.

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Article Synopsis
  • Cotton fiber's structure allows for versatile braiding and shapes, enabling the incorporation of active catalytic centers.
  • The functional groups on cotton enhance its surface properties, facilitating better stability for these catalysts.
  • This results in improved performance during electrocatalytic overall water splitting (OWS), preventing catalyst loss and maintaining activity.
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The use of catalyst materials to mediate the enhancement of microbial degradation in wastewater is a new economic and energy saving breakthrough in water treatment technology. In this study, γ-AlO, which is commonly used as catalyst/carrier, is used as biological filler to treat kitchen-oil wastewater with low biodegradability, and the COD removal rate is about 50 %. It is found that the complexation of cationic vacancies on AlO surface with extracellular polymeric substance (EPS) secreted by microorganisms in wastewater lead to the polarization of electron distribution on biofilm.

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Background: Single-agent chemotherapy using methotrexate or actinomycin D is the first-line treatment for patients with low-risk gestational trophoblastic neoplasia. Various methotrexate-based and actinomycin D-based single-agent regimens can be used. However, there is insufficient evidence to determine the superior regimen.

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Article Synopsis
  • Tuberculosis (TB) remains a significant global health issue, with a study in China investigating the occurrence of concurrent pulmonary tuberculosis (PTB) and extrapulmonary tuberculosis (EPTB).
  • The research analyzed data from nearly 439,000 TB patients over several years and identified PTB as the most common diagnosis, with over 29% of cases showing concurrent PTB and EPTB, particularly tuberculous pleurisy.
  • Results indicated variations in associations of concurrent PTB-EPTB by gender and age, highlighting the importance for clinicians to screen for these cases to enhance patient treatment outcomes.
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Background: The transversus abdominis plane (TAP) block is commonly used in surgical practice for postoperative analgesia in abdominal surgery. However, numerous studies have demonstrated that TAP block is also suitable for intraoperative anesthesia of peritoneal dialysis catheter (PDC) insertion, although its efficacy and safety are still controversial. Local anesthetic infiltration (LAI) is currently the most general anesthesia strategy for PDC insertion.

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Objective: To evaluate the prognosis and recurrence in patients with residual lesions of pulmonary metastasis from gestational trophoblastic neoplasia after initial treatment, and to explore the clinical significance of pulmonary resection.

Methods: A retrospective analysis was performed on 606 patients with residual lesions from pulmonary metastasis after receiving standardized chemotherapy as initial treatment in Peking Union Medical College Hospital from January 2002 to December 2018. Patients were divided into surgery (51 patients) and non-surgery (555 patients) groups.

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