1.RhD-negative blood donors: genetic polymorphisms and testing strategies
Kecheng WANG ; Xiaoqin WANG ; Yingzhou DING ; Tingting ZHANG ; Ming LIU ; Cheng XU
Chinese Journal of Blood Transfusion 2025;38(7):934-940
Objective: To investigate the genetic basis of RhD-negative phenotype in the blood donor population of Nantong City. Methods: RHD genotyping was performed on 386 randomly selected RhD-negative donor samples (from a total of 676 RhD-negative donors identified between January 20, 2023, and June 28, 2024) using polymerase chain reaction (PCR), and the inconclusive results were confirmed by nucleotide sequencing. Results: Ten RHD allele types were identified: The complete deletion variant RHD
01N.01 was predominant (64.25%, 248/386); followed by RHD
01EL.01 (19.69%, 76/386). RHD
01N.03, RHD
01N.04, RHD
01N.16 and RHD
01EL.32 were frequently observed., RHD
01EL.02, RHD
01EL.08, RHD
01EL.37 and RHD
01N.25 were rare, and two exon deletion variants remained uncharacterized. The phenotypic distribution of RhD-negative blood donors was ccee (55.44%)>Ccee(31.09%)>ccEe(5.96%)>CCee(5.44%)>CcEe(1.81%)>CcEE(0.26%), and the antigen distribution trend was e(99.74%)>c(94.56%)>C(38.60%)>E(8.03%). A correlation was observed between RHD genotypes and RhCE phenotypes. Conclusion: The Nantong blood donor population exhibits unique RHD gene polymorphisms. Integrating RhCE serological phenotyping with RHD genotyping is essential for ensuring transfusion safety.
2.RhD-negative blood donors: genetic polymorphisms and testing strategies
Kecheng WANG ; Xiaoqin WANG ; Yingzhou DING ; Tingting ZHANG ; Ming LIU ; Cheng XU
Chinese Journal of Blood Transfusion 2025;38(7):934-940
Objective: To investigate the genetic basis of RhD-negative phenotype in the blood donor population of Nantong City. Methods: RHD genotyping was performed on 386 randomly selected RhD-negative donor samples (from a total of 676 RhD-negative donors identified between January 20, 2023, and June 28, 2024) using polymerase chain reaction (PCR), and the inconclusive results were confirmed by nucleotide sequencing. Results: Ten RHD allele types were identified: The complete deletion variant RHD
01N.01 was predominant (64.25%, 248/386); followed by RHD
01EL.01 (19.69%, 76/386). RHD
01N.03, RHD
01N.04, RHD
01N.16 and RHD
01EL.32 were frequently observed., RHD
01EL.02, RHD
01EL.08, RHD
01EL.37 and RHD
01N.25 were rare, and two exon deletion variants remained uncharacterized. The phenotypic distribution of RhD-negative blood donors was ccee (55.44%)>Ccee(31.09%)>ccEe(5.96%)>CCee(5.44%)>CcEe(1.81%)>CcEE(0.26%), and the antigen distribution trend was e(99.74%)>c(94.56%)>C(38.60%)>E(8.03%). A correlation was observed between RHD genotypes and RhCE phenotypes. Conclusion: The Nantong blood donor population exhibits unique RHD gene polymorphisms. Integrating RhCE serological phenotyping with RHD genotyping is essential for ensuring transfusion safety.
3.Comparative analysis of the efficacy of different surgical approaches in sporadic medullary thyroid carcinoma
Mingyu YANG ; Chengqiu SUI ; Kunlin LI ; Hongbo WANG ; Hao CHI ; Dongyuan LAN ; Kecheng BAI ; Daqi ZHANG
Chinese Journal of Endocrine Surgery 2024;18(1):57-62
Objective:To investigate the efficacy and prognosis of different surgical approaches in sporadic medullary thyroid carcinoma.Methods:A retrospective analysis was conducted on 101 patients with sporadic medullary thyroid carcinoma (MTC) who underwent surgical treatment at the Department of Thyroid Surgery, China-Japan Union Hospital of Jilin University, from Feb. 2009 to Nov. 2023. The patients included 36 males and 75 females, with a male-to-female ratio of 1:2.1. The median age of the patients was 47 years old, with an age range of 21 to 72 years old. The study divided participants into two groups based on their surgical methods: an observation group (78 cases) and a control group (23 cases). The observation group received surgical methods in accordance with expert consensus, while the control group did not. The study compared the efficacy and prognosis of the two groups.Results:Statistical differences were found between the two groups in terms of stage II and III in TNM staging, intraoperative frozen pathological findings, number of lymph node resections in the central group, number of lymph node metastases in the central group, number of lymph node resections in the lateral cervical region, postoperative follow-up time, and five-year postoperative serum procalcitonin (Ctn) levels ( P<0.05) .Both groups of patients obtained a significant decrease in Ctn after surgical treatment. In the observation group, Ctn was at the remission level in 57 cases (73.1%), at the stable level in 13 cases (16.7%), and at the progression level in 8 cases (10.2%), while in the control group, Ctn was at the remission level in 20 cases (86.9%), at the progression level in 3 cases (13.1%), and there were no patients at the stable level after the operation.One patient (1.3 per cent) in the observation group had a recurrence after surgery; Two patients (8.7 per cent) in the control group had a recurrence. Conclusions:Standardised and thorough surgery can maximise the clearance of metastatic lymph nodes, effectively reduce the recurrence rate, achieve better efficacy, and improve the long-term prognosis of patients without increasing the risk of surgery and postoperative complications.
4.LI Yueqing's Experience in Treating Prostate Cancer by Stages from the Perspective of Deficiency and Stasis
Jie LI ; Bin WANG ; Kecheng LI ; Xujun YOU ; Mingqiang ZHANG ; Haodong YANG ; Peixuan REN ; Longsheng DENG
Journal of Traditional Chinese Medicine 2024;65(22):2299-2303
This paper summarized Professor LI Yueqing's clinical experience in treating prostate cancer by stages from the perspective of deficiency and stasis. It is believed that the onset of prostate cancer is due to kidney deficiency, while blood stasis is the core pathogenesis, and dampness-heat, phlegm-turbid, and cancer toxins are the key pathological factors in the progression of the disease. The pathogenesis in the early stage of the disease is kidney qi depletion and dampness, heat and phlegm coagulation; in the middle stage, it is spleen and kidney depletion, phlegm coagulation and blood stasis; and in the late stage, the pathogenesis changes into yin deficiency and essence depletion, and stasis-turbid toxin obstruction. For treatment, the basic principle is to supplement and boost kidney qi, enrich and nourish the kidney yin. The main treatment methods are draining dampness, dissolving phlegm, dispelling stasis, clearing heat and resolving toxins, and the method of invigorating blood and dispelling stasis runs through the whole course of treatment. In the early stage, radical treatment is mainly used, and Longshe Yangquan Decoction (龙蛇羊泉汤) with modifications is supplemented to clear and drain dampness and heat. In the middle stage, androgen deprivation therapy is the basic treatment, and Bushen Tongqiao Decoction (补肾通窍汤) with modifications is used in combination to nourish the spleen and kidney, dissolve phlegm and dispel stasis. In the late stage, Dabuyin Pills and Liuwei Dihuang Pills (大补阴丸合六味地黄丸) with modifications is mainly used to enrich yin and supplement essence, resolve toxins and dissolve stasis, and prevent cancer recurrence.
5.Clinical Diseases Responding Specifically to Traditional Chinese Medicine:Chronic Prostatitis
Zhan QIN ; Mei MO ; Chaoba HE ; Liguo GENG ; Bin WANG ; Jisheng WANG ; Kecheng LI ; Nianwen HUANG ; Zhiming HONG ; Shaoying YUAN ; Xiaoxiao ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):152-158
Chronic prostatitis is a common and frequently occurring disease in male clinics. Due to the diverse symptoms, complex etiology, unclear mechanisms, and recurrent episodes of chronic prostatitis, Western medicine often faces the challenge of limited treatment options and unsatisfactory outcomes. In order to fully leverage the unique advantages of traditional Chinese medicine (TCM) in the treatment of chronic prostatitis, the China Association of Chinese Medicine organized a discussion among experts from the fields of TCM urology, Western urology, and related pharmacy. The experts focused on the advancements in the understanding of chronic prostatitis in modern medicine, various theories on the etiology, pathogenesis, and treatment of chronic prostatitis in TCM, entry points from interdisciplinary fields, the role and advantages of TCM in the comprehensive management of chronic prostatitis, and research into mechanisms related to chronic prostatitis. After discussions, the experts concluded that chronic prostatitis is one of the diseases where TCM has a distinct advantage. TCM can effectively improve the clinical syndromes of chronic prostatitis, including urinary issues, social psychology, organ specificity, infection, nervous system problems, pain and discomfort, sexual dysfunction, etc., and can enhance the quality of life. For patients with chronic prostatitis who cannot tolerate or may not accept the adverse effects of Western medicine, as well as for those with non-inflammatory chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS), those with pain as the primary symptom, those with urinary tract symptoms, those with coexisting anxiety and depression, and those with abnormal semen liquefaction, TCM-based treatment can be the main approach. Currently, the optimal diagnosis and treatment strategy for chronic prostatitis has not yet been established, and further research from perspectives such as clinical epidemiology, evidence-based medicine, and molecular biology is needed. Both TCM and Western medicine should integrate their respective strengths, clarify the role and advantages of TCM interventions based on mutual reference, and improve the diagnosis and treatment standards for chronic prostatitis in China.
6.Diagnostics and treatment challenges and research progress in early-onset gastric cancer
Shuo LI ; Kecheng ZHANG ; Lin CHEN
Chinese Journal of Gastrointestinal Surgery 2024;27(5):436-440
The incidence of gastric cancer has decreased, while the occurrence of early-onset gastric cancer has increased. There is no consensus on the definition of early-onset gastric cancer currently. The characteristics of tumor staging and differentiation, coupled with the lack of targeted comprehensive treatment, present a significant clinical challenge in managing early-onset gastric cancer. Relevant studies have analyzed the genetic characteristics of early-onset gastric cancer and have preliminarily revealed its relationship with Helicobacter pylori infection and molecular subtypes. These findings have the potential to contribute to the prevention and personalized treatment of early-onset gastric cancer. In the future, larger-scale evidence-based data are needed to establish diagnostic criteria, elucidate the mechanisms, and develop targeted diagnostic and therapeutic strategies of early-onset gastric cancer.
7.Computer-vision-based artificial intelligence for detection and recognition of instruments and organs during radical laparoscopic gastrectomy for gastric cancer: a multicenter study
Kecheng ZHANG ; Zhi QIAO ; Li YANG ; Tao ZHANG ; Fenglin LIU ; Dachuan SUN ; Tianyu XIE ; Lei GUO ; Canrong LU
Chinese Journal of Gastrointestinal Surgery 2024;27(5):464-470
Objective:To investigate the feasibility and accuracy of computer vision-based artificial intelligence technology in detecting and recognizing instruments and organs in the scenario of radical laparoscopic gastrectomy for gastric cancer.Methods:Eight complete laparoscopic distal radical gastrectomy surgery videos were collected from four large tertiary hospitals in China (First Medical Center of Chinese PLA General Hospital [three cases], Liaoning Cancer Hospital [two cases], Liyang Branch of Jiangsu Province People's Hospital [two cases], and Fudan University Shanghai Cancer Center [one case]). PR software was used to extract frames every 5–10 seconds and convert them into image frames. To ensure quality, deduplication was performed manually to remove obvious duplication and blurred image frames. After conversion and deduplication, there were 3369 frame images with a resolution of 1,920×1,080 PPI. LabelMe was used for instance segmentation of the images into the following 23 categories: veins, arteries, sutures, needle holders, ultrasonic knives, suction devices, bleeding, colon, forceps, gallbladder, small gauze, Hem-o-lok, Hem-o-lok appliers, electrocautery hooks, small intestine, hepatogastric ligaments, liver, omentum, pancreas, spleen, surgical staplers, stomach, and trocars. The frame images were randomly allocated to training and validation sets in a 9:1 ratio. The YOLOv8 deep learning framework was used for model training and validation. Precision, recall, average precision (AP), and mean average precision (mAP) were used to evaluate detection and recognition accuracy.Results:The training set contained 3032 frame images comprising 30 895 instance segmentation counts across 23 categories. The validation set contained 337 frame images comprising 3407 instance segmentation counts. The YOLOv8m model was used for training. The loss curve of the training set showed a smooth gradual decrease in loss value as the number of iteration calculations increased. In the training set, the AP values of all 23 categories were above 0.90, with a mAP of 0.99, whereas in the validation set, the mAP of the 23 categories was 0.82. As to individual categories, the AP values for ultrasonic knives, needle holders, forceps, gallbladders, small pieces of gauze, and surgical staplers were 0.96, 0.94, 0.91, 0.91, 0.91, and 0.91, respectively. The model successfully inferred and applied to a 5-minutes video segment of laparoscopic gastroenterostomy suturing.Conclusion:The primary finding of this multicenter study is that computer vision can efficiently, accurately, and in real-time detect organs and instruments in various scenarios of radical laparoscopic gastrectomy for gastric cancer.
8.Key updates and interpretation of the ninth version of AJCC staging system for neuroendocrine tumors of the stomach
Di WU ; Zhengyao CHANG ; Tianyu XIE ; Kecheng ZHANG
Chinese Journal of Gastrointestinal Surgery 2024;27(7):734-739
The cancer staging system of the American Joint Committee on Cancer (AJCC) is the most widely used clinical basis for tumor staging. In October 2023, AJCC released the staging system (ninth version) for the neuroendocrine tumors of stomach (NET), which has been implemented in January 2024. The ninth version of NET staging system mainly updated the histopathologic classification, diagnosis and staging methods, clinical and pathological staging, prognosis grade, tumor and non-tumor prognostic features. The update and implementation of the staging system provide a more detailed reference for the accurate diagnosis, staging and precise treatment of gastric neuroendocrine tumors. Moreover, it is convenient for clinicians to carry out clinical practice. The purpose of our article is to provide a high-level overview of the major changes in AJCC staging system (version 9) for gastric NET based on the latest evidence-based medical research.
9.The ratio of postoperative blood glucose combined with pancreatic-visceral fat CT value was predictive for pancreatic leakage after pancreaticoduodenectomy
Hong ZHANG ; Kecheng WU ; Yu LIU
Journal of Clinical Surgery 2024;32(7):683-686
Objective To investigate the correlation between the incidence of pancreatic fistula(POPF)after pancreaticoduodenectomy and the CT ratio of pancreatic to visceral fat and blood glucose.Methods 94 patients who underwent PD from January 2018 to December 2022 were selected.Postoperative blood glucose,pancreato-visceral fat CT ratio,blood biochemistry and other relevant indicators were collected to analyze the risk factors for POPF.Results Among the 94 patients,POPF grade B/C in 20 cases(21.3%);Logistic regression analysis showed that CT ratio of pancreas-visceral fat,preoperative lymphocyte/monocyte,and blood glucose on the first day after surgery were risk factors for postoperative pancreatic fistula in PD patients.Laparotomy is an independent risk factor for postoperative pancreatic fistula in PD patients.The sensitivity and specificity of pancreatic-visceral fat CT ratio to predict POPF were 0.80 and 0.58.The sensitivity and specificity of blood glucose prediction of POPF on the first day after surgery were 0.55 and 0.84,respectively.The sensitivity and specificity of POPF prediction were 0.60 and 0.78,respectively.Conclusion CT ratio of pancreatic to visceral fat combined with blood glucose on the first day after surgery may be a risk factor for predicting POPF in PD patients.
10.Diagnostics and treatment challenges and research progress in early-onset gastric cancer
Shuo LI ; Kecheng ZHANG ; Lin CHEN
Chinese Journal of Gastrointestinal Surgery 2024;27(5):436-440
The incidence of gastric cancer has decreased, while the occurrence of early-onset gastric cancer has increased. There is no consensus on the definition of early-onset gastric cancer currently. The characteristics of tumor staging and differentiation, coupled with the lack of targeted comprehensive treatment, present a significant clinical challenge in managing early-onset gastric cancer. Relevant studies have analyzed the genetic characteristics of early-onset gastric cancer and have preliminarily revealed its relationship with Helicobacter pylori infection and molecular subtypes. These findings have the potential to contribute to the prevention and personalized treatment of early-onset gastric cancer. In the future, larger-scale evidence-based data are needed to establish diagnostic criteria, elucidate the mechanisms, and develop targeted diagnostic and therapeutic strategies of early-onset gastric cancer.

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