Publications by authors named "Yudong Qiu"

Type 1 diabetes mellitus (T1DM) are characterized by blood glucose elevation with pancreatic β cells deficiency. As a safe alternative to frequent subcutaneous insulin injection, pancreatic β cell transplantation provides a promising therapeutic option for blood glucose control in T1DM. However, pancreatic β cell transplantation faces intractable challenges of the poor viability and severe host immune rejection.

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Background: Clinically relevant postoperative pancreatic fistula (CR-POPF) remains a significant complication after pancreaticoduodenectomy (PD), leading to prolonged hospital stays, increased healthcare costs, and higher mortality rates. Timely recognition of patients at high risk for CR-POPF is critical for the implementation of personalized management strategies. This study aimed to develop and validate a predictive nomogram using preoperative factors to accurately predict CR-POPF after PD.

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Objective: To compare the differences among patients with papillary thyroid carcinoma (PTC) whose right lateral lymph node biopsy results indicating positive (pN1b) or negative lymph node metastasis (pN0 or pN1a) so as to explore whether there is a high risk of long-term metastasis in right lateral lymph node among patients who are classified as pN0 or pN1a at present. Only those whose preoperative ultrasound result indicating lymph node metastasis in the right lateral region (cN1b) are included. Meanwhile, to establish predictive models to help clinicians distinguish high-risk and low-risk populations and adopt different follow-up strategies.

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Background: Precise diagnosis of intrapancreatic accessory spleen (IPAS) remains challenging due to its rarity and diverse presentations. Despite comprehensive examinations, including radiography and other diagnostic methods, the potential for malignancy cannot be excluded, often leading to unnecessary pancreatic surgeries. We review our institutional experience to provide insights for accurately distinguishing IPAS.

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Background: Patient-derived organoids (PDOs) represent a promising approach for replicating the characteristics of original tumors and facilitating drug testing for personalized treatments across diverse cancer types. However, clinical evidence regarding their application to esophageal cancer remains limited. This study aims to evaluate the efficacy of implementing PDOs in clinical practice to benefit patients with esophageal squamous cell carcinoma (ESCC).

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Introduction: This study aimed to evaluate the short-term outcomes between laparoscopic intersphincteric resection (L-ISR) and robotic intersphincteric resection (R-ISR) for low rectal cancer.

Patients And Methods: We performed a retrospective clinical analysis between August 2018 and August 2021 at the Department Of General Surgery, the Affiliated Hospital of Nanjing University Medical School.

Results: A total of 28 patients were recruited in this research.

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To evaluate the value of suspension and suturing technique in the prevention of anastomotic leakage of rectal cancer following double stapling technique. We performed a cohort study between August 2018 and December 2021 and analyzed the patients with rectal cancer underwent radical resection and double stapling technique at the department of general surgery. 324 patients were recruited in this research.

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Organ/space surgical site infection (SSI) are common after pancreaticoduodenectomy (PD). There is limited research on the clinical impact of intraoperative lavage fluid contamination in patients undergoing PD. One hundred five patients who underwent PD between August 2022 and July 2023 were retrospectively enrolled.

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Porcine group A rotavirus (PoRVA) is one of the common enteric viruses causing severe diarrhea in piglets. Although PoRVA infection has been identified to promote IL-10 production, the role of IL-10 during viral infection remains unclear. In this study, we found that elevated IL-10 levels during PoRVA infection promote viral replication by inhibiting type I interferon production and response.

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Developing stable and efficient photothermal agents (PTAs) for the second near-infrared window (NIR-II, 1 000-1700 nm) photothermal therapy (PTT) is highly desirable but remains challenging. Herein, a facile strategy to prepare NIR-II nano-PTA based on the ionic N-doped nanographene hexapyrrolohexaazacoronene (HPHAC) is reported featuring a specific orbicular-donor-acceptor (O-D-A) structure. Oxidizing HPHAC 1 to dication 1 causes a substantial decrease in its band gap, leading to a shift in absorption from the confined UV region to a broad absorption range that reaches up to 1400 nm.

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PoRVA and PEDV coinfections are extremely common in clinical practice. Although coinfections of PoRVA and PEDV are known to result in increased mortality, the underlying mechanism remains unknown. Here, we found that PoRVA infection promoted PEDV infection in vivo and in vitro and that PoRVA G9P[23] (RVA-HNNY strain) enhanced PEDV replication more significantly than did PoRVA G5P[7] (RVA-SXXA strain).

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Background: Radical surgery combined with systemic chemotherapy offers the possibility of long-term survival or even cure for patients with pancreatic ductal adenocarcinoma (PDAC), although tumor recurrence, especially locally, still inhibits the treatment efficacy. The TRIANGLE technique was introduced as an extended dissection procedure to improve the R0 resection rate of borderline resectable or locally advanced PDAC. However, there was a lack of studies concerning postoperative complications and long-term outcomes of this procedure on patients with resectable PDAC.

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Peripancreatic vessel segmentation and anatomical labeling are pivotal aspects in aiding surgical planning and prognosis for patients with pancreatic tumors. Nevertheless, prevailing techniques often fall short in achieving satisfactory segmentation performance for the peripancreatic vein (PPV), leading to predictions characterized by poor integrity and connectivity. Besides, unsupervised labeling algorithms usually cannot deal with complex anatomical variation while fully supervised methods require a large number of voxel-wise annotations for training, which is very labor-intensive and time-consuming.

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Background: The occurrence of surgical site infection (SSI) after pancreaticoduodenectomy (PD) is still relatively high. The aim of this retrospective study is to evaluate the efficacy of piperacillin-tazobactam as perioperative prophylactic antibiotic on organ/space SSI for patients underwent PD.

Methods: Four hundred seven consecutive patients who underwent PD between January 2018 and December 2022 were enrolled and analyzed retrospectively.

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Objective: To evaluate the effect of perioperative dexamethasone on postoperative complications after pancreaticoduodenectomy.

Background: The glucocorticoid dexamethasone has been shown to improve postoperative outcomes in surgical patients, but its effects on postoperative complications after pancreaticoduodenectomy are unclear.

Methods: This multicenter, double-blind, randomized controlled trial was conducted in four Chinese high-volume pancreatic centers.

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Pancreatic cancer (PC) is one of the most malignant and deadly tumors of digestive system with complex etiology and pathogenesis. Dysregulations of oncogenes and tumor suppressors due to epigenetic modifications causally affect tumorogenesis; however the key tumor suppressors and their regulations in PC are only partially defined. In this study, we found that Claudin-1 (encoded by CLDN1 gene) was significantly suppressed in PC that correlated with a poor clinical prognosis.

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Article Synopsis
  • Tertiary lymphoid structures (TLSs) are key indicators for prognosis in pancreatic tumors, making their detection vital for patient diagnosis and treatment.
  • A weakly supervised segmentation network is proposed for TLS detection, reducing the need for extensive manual annotations through few-shot learning techniques.
  • Experimental results show that this method outperforms traditional algorithms and reveals a correlation between TLS density and peripancreatic vascular invasion, providing relevant clinical insights.
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Article Synopsis
  • - Nutritional deficiencies caused by pancreatic ductal adenocarcinoma (PDAC) cells hinder immune responses, specifically by reducing the availability of vitamin B6 (VB6), which is essential for natural killer (NK) cells to function effectively.
  • - PDAC cells utilize large amounts of VB6 for their own growth, leading to a depletion of this nutrient in the surrounding tumor environment, ultimately impairing NK-cell activity.
  • - Supplementing VB6 while blocking its usage for tumor metabolism shows promise in enhancing NK-cell function and reducing tumor growth in PDAC, suggesting potential new therapeutic approaches.
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Background: Immune checkpoint inhibitor (ICI) combination therapies have shown promise in the first-line treatment of advanced biliary tract cancer (BTC). However, the best partner remains to be validated. Moreover, progress on biomarkers predicting the efficacy of ICI in BTC is slow.

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Background: Pancreaticoduodenectomy (PD) nowadays serves as a standard treatment for patients with disorders of the pancreas, intestine, and bile duct. Although the mortality rate of patients undergoing PD has decreased significantly, postoperative complication rates remain high. Dexamethasone, a synthetic glucocorticoid with potent anti-inflammatory and metabolic effects, has been proven to have a favorable effect on certain complications.

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Pancreatic duct dilation indicates a high risk of various pancreatic diseases. Segmentation for dilated pancreatic duct (DPD) on computed tomography (CT) image shows the potential to assist the early diagnosis, surgical planning and prognosis. Because of the DPD's tiny size, slender tubular structure and the surrounding distractions, most current researches on DPD segmentation achieve low accuracy and always have segmentation errors on the terminal DPD regions.

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DTX3L (Deltex E3 ubiquitin ligase 3 L) is an E3 ubiquitin ligase, a member of the deltex family. It is also known as B-lymphoma and BAL-associated protein (BBAP). DTX3L has been proven to play an important role in various tumor development; however, its role in pancreatic cancer remains unknown.

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Background: The role of preoperative biliary drainage (PBD) on obstructive jaundice patients is still controversial. The aim of this retrospective study is to clarify the effect of PBD on postoperative outcomes of pancreaticoduodenectomy (PD) and explore a reasonable PBD strategy for periampullary carcinomas (PAC) patients with obstructive jaundice before surgery.

Methods: A total of 148 patients with obstructive jaundice who underwent PD were enrolled in this research and divided into drainage group and no-drainage group according to whether they received PBD.

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Chemotherapy-induced adaptive resistance is a significant factor that contributes to low therapeutic efficacy in tumor cells. The unfolded protein response (UPR) is a key mechanism in the development of drug resistance and serves as a critical reactive system for endoplasmic reticulum stress. Cu(II) can reduce the abundance of 60S ribosomal subunits and inhibit rRNA processing, leading to a decrease in the translation efficiency of the GRP78/BiP mRNA, which serves as a primary sensor for UPR activation.

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Background: Pancreaticoduodenectomy (PD) is a complex and traumatic abdominal surgery with a high risk of postoperative complications. Nutritional support, including immunonutrition (IMN) with added glutamine, arginine, and ω-3 polyunsaturated fatty acids, can improve patients' prognosis by regulating postoperative inflammatory response. However, the effects of IMN on PD patients' outcomes require further investigation.

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