1.A study on ethical shaping of hospital nursing service behavior based on psychological empowerment and institutional empowerment
Yajun YANG ; Hanxiang GONG ; Xiangnan TAO
Modern Hospital 2025;25(6):926-929
Hospital caregivers,as crucial auxiliary groups in the healthcare system,face persistent stigmatization rooted in sociocultural and institutional dynamics,leading to diminished professional dignity and distorted service behaviors.This paper explores the social construction and cultural reproduction mechanisms underlying such stigmatization,revealing how internalized stigma and service alienation reinforce each other.Drawing on ethical and structural analysis,the study proposes a dual-path the-oretical framework integrating psychological empowerment and institutional enfranchisement.By enhancing individual resilience and reshaping organizational structures,this integrated approach seeks to reconstruct the occupational identity of care workers and foster an ethical breakthrough in service delivery,ultimately promoting the de-stigmatization and sustainable development of the profession.
2.A real-world study of 15,644 patients undergoing D2 radical gastrectomy over 11 years at Shanxi provincial cancer hospital
Baoping JIAO ; Kai TAO ; Gang ZHAI ; Zefeng GAO ; Feng LI ; Kaiqing GUO ; Yutao ZHANG ; Nan QIAO ; Yi JIA ; Zongliang GUO ; Erli WANG ; Zhe BAI ; Xiangnan ZHAO ; Haoruo ZHANG ; Yuye GAO ; Jinfeng MA
Chinese Journal of Gastrointestinal Surgery 2025;28(11):1302-1313
Objective:To summarize the clinicopathological features, evolving trends in treatment and surgical approaches, and survival outcomes of patients who underwent D2 radical gastrectomy for gastric cancer in Shanxi Provincial Cancer Hospital over the past 11 years with the goal of providing a reference for the clinical practice of gastric cancer in this region.Methods:A retrospective observational study was conducted to analyze the clinicopathological data of patients who underwent D2 radical gastrectomy for pathologically confirmed gastric malignancy at the Department of Gastrointestinal Surgery, Shanxi Provincial Cancer Hospital from January, 2013 to December, 2023. Exclusion criteria consisted of: (1) residual gastric cancer or recurrent gastric cancer after surgery; (2) emergency gastric cancer resection due to bleeding, perforation, obstruction, or other causes; (3) comorbidity with other primary malignant tumors; (4) severe preoperative cardiopulmonary insufficiency or hepatic and renal insufficiency who cannot tolerate radical surgery; and (5) inconsistent main diagnosis information across the medical record system, pathological system, and gastric cancer-specific database. Patients were divided into three groups based on treatment methods: the surgery-only group, the perioperative chemotherapy group, and the adjuvant chemotherapy group. Endpoints included: (1) baseline patient characteristics; (2) trends in tumor location and pathological features; (3) evolution of treatment modalities; and (4) survival outcomes.Results:A total of 15,644 patients were included in the analysis, with 12,591 males and 3,053 females, the male-to-female gender ration was approximately 4∶1; the mean age was (61.2±9.5) years. The tumor sites were mainly concentrated in the esophagogastric junction (EGJ) (57.4%), followed by the antrum (25.9%). The incidence of EGJ cancer initially rose and then declined. However, gastric antrum tumors remained stable, and gastric body tumors showed a slow upward trend after 2020, accounting for 16.7%. In terms of pathological types, poorly differentiated carcinoma was the most prevalent, accounting for 55.9%, followed by moderately differentiated carcinoma (24.2%), mucinous adenocarcinoma (or signet ring cell carcinoma,14.1%), neuroendocrine carcinoma (4.8%), and well-differentiated carcinoma (0.9%). The proportion of poorly differentiated adenocarcinoma showed a significant upward trend overall as well, peaking at 65.6% in 2022 and decreasing to 57.5% in 2023. Mucinous adenocarcinoma (or signet ring cell carcinoma) exhibited fluctuations with a first increase followed by a decrease: it peaked at 17.3% in 2018, dropped sharply to 8.4% in 2022, and rose back to 13.8% in 2023. The proportions of well-differentiated adenocarcinoma, moderately differentiated adenocarcinoma, and neuroendocrine tumors remained stable year by year. In terms of pathological staging, the overall proportions of gastric cancer at Stage 0, Stage I, Stage II, Stage III, and Stage IVa were 0.5%, 17.3%, 25.1%, 54.9%, and 2.3%, respectively. For Stage III, its proportion was 74.6% in 2013, which decreased to 46.4% by 2023. Stages I and II gastric cancer showed an upward trend, with their proportions rising from 10.2% and 12.1% in 2013 to nearly 21.0% and 29.6% in 2023, respectively. Between 2013 and 2023, the proportion of patients who received surgery alone continued to decrease, with this proportion dropping to 34.7% in 2023. In contrast, the number of patients who received adjuvant chemotherapy increased year by year, reaching 54.2% in 2023. Since 2017, the application of perioperative chemotherapy has gradually increased, rising to 11.1% in 2023. Immunotherapy showed an almost synchronous growth trend with perioperative chemotherapy. However, targeted therapy exhibited a downward trend after a period of growth. There were 10,704 cases of open surgery (68.4%), 4,744 cases of laparoscopic surgery (30.3%), and 193 cases of transthoracic surgery (1.2%). Pathological margin positivity was observed in 443 cases (2.8%), and the volume of gastric cancer surgeries gradually increased, peaked in 2021 before subsequently decreasing gradually. However, the volume of laparoscopic surgeries did not decrease; instead, it showed an upward trend. The main resection method for EGJ tumors was total gastrectomy, accounting for 78.5% of the total, followed by proximal gastrectomy, which accounted for 21.5%. After total gastrectomy, esophagojejunal Roux-en-Y anastomosis was the primary anastomotic method, and for proximal gastrectomy, the main anastomotic method was esophagogastric anastomosis, which accounted for 68.0% of the total. For distal gastrectomy, Billroth II anastomosis was the most common anastomotic technique, accounting for 92.7% of these procedures. The overall incidence of postoperative complications was 14.5% (2,264/15,644), among which the incidence of severe complications (grades III-IV) was 4.5% (706/15,644). The entire cohort was followed up with for (47.1±36.8) months, and the 1-year, 3-year, and 5-year overall survival rates were 86.4%, 65.9%, and 58.1%, respectively. For patients with stage 0, I, II, III, and IV gastric adenocarcinoma, the 1-year overall survival rates were 95.7%, 98.0%, 89.4%, 81.0%, and 49.1%, respectively; the 3-year overall survival rates were 92.1%, 94.6%, 81.9%, 51.4%, and 14.7%, respectively; and the 5-year overall survival rates were 89.4%, 91.7%, 75.1%, 41.5%, and 10.0%, respectively. For patients with stage I, II, III, and IV gastric neuroendocrine carcinoma, the 1-year overall survival rates were 96.7%, 91.1%, 73.8%, and 52.6%, respectively; the 3-year overall survival rates were 87.2%, 69.6%, 46.1%, and 32.1%, respectively; and the 5-year overall survival rates were 87.2%, 62.2%, 36.7%, and 32.1%, respectively.Conclusions:Gastric cancer in Shanxi Province is characterized by a male predominance, a high prevalence of tumors at the esophagogastric junction, a large proportion of poorly differentiated adenocarcinoma, and presentation at advanced stages (predominantly Stage III). The detection rate of early gastric cancer has been increasing year by year, the volume of laparoscopic surgeries has been on the rise annually, and the treatment model has shifted from single surgery to comprehensive treatment.
3.BRD4 regulates m6A of ESPL1 mRNA via interaction with ALKBH5 to modulate breast cancer progression.
Haisheng ZHANG ; Linlin LU ; Cheng YI ; Tao JIANG ; Yunqing LU ; Xianyuan YANG ; Ke ZHONG ; Jiawang ZHOU ; Jiexin LI ; Guoyou XIE ; Zhuojia CHEN ; Zongpei JIANG ; Gholamreza ASADIKARAM ; Yanxi PENG ; Dan ZHOU ; Hongsheng WANG
Acta Pharmaceutica Sinica B 2025;15(3):1552-1570
The interaction between m6A-methylated RNA and chromatin modification remains largely unknown. We found that targeted inhibition of bromodomain-containing protein 4 (BRD4) by siRNA or its inhibitor (JQ1) significantly decreases mRNA m6A levels and suppresses the malignancy of breast cancer (BC) cells via increased expression of demethylase AlkB homolog 5 (ALKBH5). Mechanistically, inhibition of BRD4 increases the mRNA stability of ALKBH5 via enhanced binding between its 3' untranslated regions (3'UTRs) with RNA-binding protein RALY. Further, BRD4 serves as a scaffold for ubiquitin enzymes tripartite motif containing-21 (TRIM21) and ALKBH5, resulting in the ubiquitination and degradation of ALKBH5 protein. JQ1-increased ALKBH5 then demethylates mRNA of extra spindle pole bodies like 1 (ESPL1) and reduces binding between ESPL1 mRNA and m6A reader insulin like growth factor 2 mRNA binding protein 3 (IGF2BP3), leading to decay of ESPL1 mRNA. Animal and clinical studies confirm a critical role of BRD4/ALKBH5/ESPL1 pathway in BC progression. Further, our study sheds light on the crosstalks between histone modification and RNA methylation.
4.A study on ethical shaping of hospital nursing service behavior based on psychological empowerment and institutional empowerment
Yajun YANG ; Hanxiang GONG ; Xiangnan TAO
Modern Hospital 2025;25(6):926-929
Hospital caregivers,as crucial auxiliary groups in the healthcare system,face persistent stigmatization rooted in sociocultural and institutional dynamics,leading to diminished professional dignity and distorted service behaviors.This paper explores the social construction and cultural reproduction mechanisms underlying such stigmatization,revealing how internalized stigma and service alienation reinforce each other.Drawing on ethical and structural analysis,the study proposes a dual-path the-oretical framework integrating psychological empowerment and institutional enfranchisement.By enhancing individual resilience and reshaping organizational structures,this integrated approach seeks to reconstruct the occupational identity of care workers and foster an ethical breakthrough in service delivery,ultimately promoting the de-stigmatization and sustainable development of the profession.
5.The impact of low-dose oxycodone-nalbuphine on pain mediator release in patient-controlled intravenous analgesia following laparoscopic radical resection of rectal cancer
Hu NI ; Xiangnan WU ; Yunsheng TAO ; Jing HU
Journal of Clinical Surgery 2025;33(7):771-774
Objective To observe the impact of low-dose oxycodone-nalbuphine on pain mediator release in patient-controlled intravenous analgesia(PCIA)following laparoscopic radical resection of rectal cancer.Methods 120 patients who underwent laparoscopic radical surgery for colorectal cancer in our hospital from October 2022 to September 2023 were selected and randomly divided into the control group and the experimental group(60 cases in each).PCIA was administered within 48 h postoperatively,formulated as 10 mg hydromorphone and 40 mg nalbuphine diluted in saline to 100 ml.No background dose was administered in the control group,and a background dose of 1 ml/h was administered in the test group.Compare the number of effective PCIA compressions,the rate of remedial analgesia,the rate of remedial antiemesis,the dosage of analgesic pump,Visual Analogue Scale(VAS),Ramsay sedation score,the release of serum pain mediators and the occurrence of postoperative adverse reactions in patients within ≤24 hours and 24-48 hours.Results VAS Scores:The VAS scores during activity in the experimental group at 24 h and 48 h after surgery(2.21±0.25,1.78±0.44)were lower than those in the control group(2.58±0.23,2.12±0.27)(both P<0.05).The VAS scores at rest in the experimental group at 12 h,24 h,and 48 h after surgery(2.52±0.28,2.14±0.26,1.75±0.32)were lower than those in the control group(3.17±0.39,2.68±0.33,2.04±0.21)(P<0.05).Pump Usage:The amounts of analgesic pump used in the experimental group at 24 h and 48 h after surgery[(27.64±0.28)ml,(49.11±0.25)ml]were higher than those in the control group[(12.06±0.33)ml,(20.15±0.36)ml)](both P<0.001).PCIA Pressing Times:The effective pressing times of PCIA in the experimental group within ≤24 h and 24-48 h(5.89±0.31,4.73±0.28)were lower than those in the control group(7.28±0.38,6.21±0.37)(both P<0.001).Rescue Analgesia and Antiemesis Rates:The rescue analgesia rate(11.67%vs 28.33%,P=0.023)and rescue antiemesis rate(5.00%vs 18.33%,P=0.023)in the experimental group were both lower than those in the control group.Ramsay Sedation Scores:The Ramsay sedation scores in the experimental group at 12 h,24 h,and 48 h after surgery(2.18±0.31,1.74±0.42,1.46±0.14)were lower than those in the control group(2.43±0.48,2.12±0.32,2.03±0.38)(P<0.001).In the experimental group,substance P[(35.26±5.27)pg/ml,(26.37±4.17)pg/ml],neuropeptide Y[(147.28±27.43)pg/ml,(127.26±18.49)pg/ml],and prostaglandin E2[(56.48±3.69)at 24 hours and 48 hours after the operation 9)The levels of pg/ml,(42.47±5.35)pg/ml and norepinephrine[(3.12±0.48)ng/ml,(1.57±0.19)ng/ml]were all lower than those of the control group[(41.27±6.48)pg/ml,(34.37±4.86)pg/ml,(35.26±5.27 pg/ml,(26.37±4.17)pg/ml,(62.47±4.26)pg/ml,(53.95±4.73)pg/ml,(3.64±0.64)ng/ml,(2.16±0.26)ng/ml,(P<0.001)].Conclusion Low-dose oxycodone-nalbuphine in patient-controlled intravenous analgesia following laparoscopic radical resection of rectal cancer can improve analgesic effects and reduce serum pain mediator release.
6.The impact of low-dose oxycodone-nalbuphine on pain mediator release in patient-controlled intravenous analgesia following laparoscopic radical resection of rectal cancer
Hu NI ; Xiangnan WU ; Yunsheng TAO ; Jing HU
Journal of Clinical Surgery 2025;33(7):771-774
Objective To observe the impact of low-dose oxycodone-nalbuphine on pain mediator release in patient-controlled intravenous analgesia(PCIA)following laparoscopic radical resection of rectal cancer.Methods 120 patients who underwent laparoscopic radical surgery for colorectal cancer in our hospital from October 2022 to September 2023 were selected and randomly divided into the control group and the experimental group(60 cases in each).PCIA was administered within 48 h postoperatively,formulated as 10 mg hydromorphone and 40 mg nalbuphine diluted in saline to 100 ml.No background dose was administered in the control group,and a background dose of 1 ml/h was administered in the test group.Compare the number of effective PCIA compressions,the rate of remedial analgesia,the rate of remedial antiemesis,the dosage of analgesic pump,Visual Analogue Scale(VAS),Ramsay sedation score,the release of serum pain mediators and the occurrence of postoperative adverse reactions in patients within ≤24 hours and 24-48 hours.Results VAS Scores:The VAS scores during activity in the experimental group at 24 h and 48 h after surgery(2.21±0.25,1.78±0.44)were lower than those in the control group(2.58±0.23,2.12±0.27)(both P<0.05).The VAS scores at rest in the experimental group at 12 h,24 h,and 48 h after surgery(2.52±0.28,2.14±0.26,1.75±0.32)were lower than those in the control group(3.17±0.39,2.68±0.33,2.04±0.21)(P<0.05).Pump Usage:The amounts of analgesic pump used in the experimental group at 24 h and 48 h after surgery[(27.64±0.28)ml,(49.11±0.25)ml]were higher than those in the control group[(12.06±0.33)ml,(20.15±0.36)ml)](both P<0.001).PCIA Pressing Times:The effective pressing times of PCIA in the experimental group within ≤24 h and 24-48 h(5.89±0.31,4.73±0.28)were lower than those in the control group(7.28±0.38,6.21±0.37)(both P<0.001).Rescue Analgesia and Antiemesis Rates:The rescue analgesia rate(11.67%vs 28.33%,P=0.023)and rescue antiemesis rate(5.00%vs 18.33%,P=0.023)in the experimental group were both lower than those in the control group.Ramsay Sedation Scores:The Ramsay sedation scores in the experimental group at 12 h,24 h,and 48 h after surgery(2.18±0.31,1.74±0.42,1.46±0.14)were lower than those in the control group(2.43±0.48,2.12±0.32,2.03±0.38)(P<0.001).In the experimental group,substance P[(35.26±5.27)pg/ml,(26.37±4.17)pg/ml],neuropeptide Y[(147.28±27.43)pg/ml,(127.26±18.49)pg/ml],and prostaglandin E2[(56.48±3.69)at 24 hours and 48 hours after the operation 9)The levels of pg/ml,(42.47±5.35)pg/ml and norepinephrine[(3.12±0.48)ng/ml,(1.57±0.19)ng/ml]were all lower than those of the control group[(41.27±6.48)pg/ml,(34.37±4.86)pg/ml,(35.26±5.27 pg/ml,(26.37±4.17)pg/ml,(62.47±4.26)pg/ml,(53.95±4.73)pg/ml,(3.64±0.64)ng/ml,(2.16±0.26)ng/ml,(P<0.001)].Conclusion Low-dose oxycodone-nalbuphine in patient-controlled intravenous analgesia following laparoscopic radical resection of rectal cancer can improve analgesic effects and reduce serum pain mediator release.
7.A real-world study of 15,644 patients undergoing D2 radical gastrectomy over 11 years at Shanxi provincial cancer hospital
Baoping JIAO ; Kai TAO ; Gang ZHAI ; Zefeng GAO ; Feng LI ; Kaiqing GUO ; Yutao ZHANG ; Nan QIAO ; Yi JIA ; Zongliang GUO ; Erli WANG ; Zhe BAI ; Xiangnan ZHAO ; Haoruo ZHANG ; Yuye GAO ; Jinfeng MA
Chinese Journal of Gastrointestinal Surgery 2025;28(11):1302-1313
Objective:To summarize the clinicopathological features, evolving trends in treatment and surgical approaches, and survival outcomes of patients who underwent D2 radical gastrectomy for gastric cancer in Shanxi Provincial Cancer Hospital over the past 11 years with the goal of providing a reference for the clinical practice of gastric cancer in this region.Methods:A retrospective observational study was conducted to analyze the clinicopathological data of patients who underwent D2 radical gastrectomy for pathologically confirmed gastric malignancy at the Department of Gastrointestinal Surgery, Shanxi Provincial Cancer Hospital from January, 2013 to December, 2023. Exclusion criteria consisted of: (1) residual gastric cancer or recurrent gastric cancer after surgery; (2) emergency gastric cancer resection due to bleeding, perforation, obstruction, or other causes; (3) comorbidity with other primary malignant tumors; (4) severe preoperative cardiopulmonary insufficiency or hepatic and renal insufficiency who cannot tolerate radical surgery; and (5) inconsistent main diagnosis information across the medical record system, pathological system, and gastric cancer-specific database. Patients were divided into three groups based on treatment methods: the surgery-only group, the perioperative chemotherapy group, and the adjuvant chemotherapy group. Endpoints included: (1) baseline patient characteristics; (2) trends in tumor location and pathological features; (3) evolution of treatment modalities; and (4) survival outcomes.Results:A total of 15,644 patients were included in the analysis, with 12,591 males and 3,053 females, the male-to-female gender ration was approximately 4∶1; the mean age was (61.2±9.5) years. The tumor sites were mainly concentrated in the esophagogastric junction (EGJ) (57.4%), followed by the antrum (25.9%). The incidence of EGJ cancer initially rose and then declined. However, gastric antrum tumors remained stable, and gastric body tumors showed a slow upward trend after 2020, accounting for 16.7%. In terms of pathological types, poorly differentiated carcinoma was the most prevalent, accounting for 55.9%, followed by moderately differentiated carcinoma (24.2%), mucinous adenocarcinoma (or signet ring cell carcinoma,14.1%), neuroendocrine carcinoma (4.8%), and well-differentiated carcinoma (0.9%). The proportion of poorly differentiated adenocarcinoma showed a significant upward trend overall as well, peaking at 65.6% in 2022 and decreasing to 57.5% in 2023. Mucinous adenocarcinoma (or signet ring cell carcinoma) exhibited fluctuations with a first increase followed by a decrease: it peaked at 17.3% in 2018, dropped sharply to 8.4% in 2022, and rose back to 13.8% in 2023. The proportions of well-differentiated adenocarcinoma, moderately differentiated adenocarcinoma, and neuroendocrine tumors remained stable year by year. In terms of pathological staging, the overall proportions of gastric cancer at Stage 0, Stage I, Stage II, Stage III, and Stage IVa were 0.5%, 17.3%, 25.1%, 54.9%, and 2.3%, respectively. For Stage III, its proportion was 74.6% in 2013, which decreased to 46.4% by 2023. Stages I and II gastric cancer showed an upward trend, with their proportions rising from 10.2% and 12.1% in 2013 to nearly 21.0% and 29.6% in 2023, respectively. Between 2013 and 2023, the proportion of patients who received surgery alone continued to decrease, with this proportion dropping to 34.7% in 2023. In contrast, the number of patients who received adjuvant chemotherapy increased year by year, reaching 54.2% in 2023. Since 2017, the application of perioperative chemotherapy has gradually increased, rising to 11.1% in 2023. Immunotherapy showed an almost synchronous growth trend with perioperative chemotherapy. However, targeted therapy exhibited a downward trend after a period of growth. There were 10,704 cases of open surgery (68.4%), 4,744 cases of laparoscopic surgery (30.3%), and 193 cases of transthoracic surgery (1.2%). Pathological margin positivity was observed in 443 cases (2.8%), and the volume of gastric cancer surgeries gradually increased, peaked in 2021 before subsequently decreasing gradually. However, the volume of laparoscopic surgeries did not decrease; instead, it showed an upward trend. The main resection method for EGJ tumors was total gastrectomy, accounting for 78.5% of the total, followed by proximal gastrectomy, which accounted for 21.5%. After total gastrectomy, esophagojejunal Roux-en-Y anastomosis was the primary anastomotic method, and for proximal gastrectomy, the main anastomotic method was esophagogastric anastomosis, which accounted for 68.0% of the total. For distal gastrectomy, Billroth II anastomosis was the most common anastomotic technique, accounting for 92.7% of these procedures. The overall incidence of postoperative complications was 14.5% (2,264/15,644), among which the incidence of severe complications (grades III-IV) was 4.5% (706/15,644). The entire cohort was followed up with for (47.1±36.8) months, and the 1-year, 3-year, and 5-year overall survival rates were 86.4%, 65.9%, and 58.1%, respectively. For patients with stage 0, I, II, III, and IV gastric adenocarcinoma, the 1-year overall survival rates were 95.7%, 98.0%, 89.4%, 81.0%, and 49.1%, respectively; the 3-year overall survival rates were 92.1%, 94.6%, 81.9%, 51.4%, and 14.7%, respectively; and the 5-year overall survival rates were 89.4%, 91.7%, 75.1%, 41.5%, and 10.0%, respectively. For patients with stage I, II, III, and IV gastric neuroendocrine carcinoma, the 1-year overall survival rates were 96.7%, 91.1%, 73.8%, and 52.6%, respectively; the 3-year overall survival rates were 87.2%, 69.6%, 46.1%, and 32.1%, respectively; and the 5-year overall survival rates were 87.2%, 62.2%, 36.7%, and 32.1%, respectively.Conclusions:Gastric cancer in Shanxi Province is characterized by a male predominance, a high prevalence of tumors at the esophagogastric junction, a large proportion of poorly differentiated adenocarcinoma, and presentation at advanced stages (predominantly Stage III). The detection rate of early gastric cancer has been increasing year by year, the volume of laparoscopic surgeries has been on the rise annually, and the treatment model has shifted from single surgery to comprehensive treatment.
8.Intravoxel incoherent motion for quantitative evaluating chronic allograft dysfunction
Pan WANG ; Xiangnan LI ; Xin ZHENG ; Xiaopeng HU ; Chen ZHANG ; Tao JIANG ; Min LI
Chinese Journal of Medical Imaging Technology 2024;40(1):93-97
Objective To observe the value of diffusion weighted imaging intravoxel incoherent motion(IVIM)for quantitative evaluating chronic allograft dysfunction(CAD).Methods Totally 104 CAD patients were prospectively enrolled and were assigned into CAD 1,2 and 3 groups(n=11,61,32)based on impairment severity of estimated renal function,and 36 healthy volunteers were enrolled as control group.The true diffusion coefficient(D value),microcirculation perfusion diffusion coefficient(D*value)and perfusion score(f value)of renal cortex and medulla IVIM parameters were compared among groups and within groups to assess the value of IVIM parameters for diagnosing CAD.Results The D value of transplanted renal cortex in all CAD groups were lower than that in control group(all P<0.05),which decreased among CAD 1,2 and 3 groups(all P<0.05).The D value of transplanted kidney medulla in CAD 2 and 3 groups were lower than that in control group(both P<0.05).The D*values of transplanted renal cortex in all CAD groups were lower than that in control group,while of renal medulla in CAD 2 and 3 groups were lower than that in control group(both P<0.05).The f values of cortex and medulla in CAD 2 and 3 groups were lower than those in control group(all P<0.05),while of cortex in CAD 3 group was lower than that in CAD 1 and 2 groups(both P<0.05).The area under the curve(AUC)of cortical IVIM combined model for diagnosing CAD was 0.96,better than the D*value and f value(AUC=0.74,0.83,P<0.05)but not significantly different with that of the D value(AUC=0.94,P=0.32).AUC of medullary IVIM combined model for diagnosing CAD was 0.91,better than that of D,D*and f value(AUC=0.80,0.67 and 0.80,all P<0.05).Conclusion IVIM parameters could be used to quantitatively evaluate CAD.
9.p21/Zbtb18 repress the expression of cKit to regulate the self-renewal of hematopoietic stem cells.
Nini WANG ; Shangda YANG ; Yu LI ; Fanglin GOU ; Yanling LV ; Xiangnan ZHAO ; Yifei WANG ; Chang XU ; Bin ZHOU ; Fang DONG ; Zhenyu JU ; Tao CHENG ; Hui CHENG
Protein & Cell 2024;15(11):840-857
The maintenance of hematopoietic stem cells (HSCs) is a complex process involving numerous cell-extrinsic and -intrinsic regulators. The first member of the cyclin-dependent kinase family of inhibitors to be identified, p21, has been reported to perform a wide range of critical biological functions, including cell cycle regulation, transcription, differentiation, and so on. Given the previous inconsistent results regarding the functions of p21 in HSCs in a p21-knockout mouse model, we employed p21-tdTomato (tdT) mice to further elucidate its role in HSCs during homeostasis. The results showed that p21-tdT+ HSCs exhibited increased self-renewal capacity compared to p21-tdT- HSCs. Zbtb18, a transcriptional repressor, was upregulated in p21-tdT+ HSCs, and its knockdown significantly impaired the reconstitution capability of HSCs. Furthermore, p21 interacted with ZBTB18 to co-repress the expression of cKit in HSCs and thus regulated the self-renewal of HSCs. Our data provide novel insights into the physiological role and mechanisms of p21 in HSCs during homeostasis independent of its conventional role as a cell cycle inhibitor.
Animals
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Hematopoietic Stem Cells/cytology*
;
Cyclin-Dependent Kinase Inhibitor p21/genetics*
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Mice
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Cell Self Renewal
;
Repressor Proteins/genetics*
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Mice, Inbred C57BL
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Mice, Knockout
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Humans
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Gene Expression Regulation
10.Efficacy of different anti-vascular endothelial growth factor drugs in the treatment of diabetic macular edema and their relationship with optical coherence tomography classification
Tao TIAN ; Xiao-Xi YAO ; Jing-Li PENG ; Zhi-Yuan LI ; Gang-Hua FENG ; Ru LIU ; Xiao-Ping ZHOU ; Yuan YANG ; Guo-Ping KUANG
International Eye Science 2023;23(6):991-995
AIM: To explore the clinical efficacy of different anti-vascular endothelial growth factor(VEGF)drugs in the treatment of diabetic macular edema(DME), and analyze their relationship with optical coherence tomography(OCT)classification.METHODS: A total of 45 DME patients treated with ranibizumab(admitted to our hospital from February 2020 to February 2022)were selected as the ranibizumab group, and 45 DME patients treated with conbercept during the same period were selected as the conbercept group. The ranibizumab group was treated with retinal photocoagulation combined with ranibizumab, and the conbercept group was treated with retinal photocoagulation combined with conbercept. The improvement of symptoms(improvement time of macular edema, time of retinal thickness returning to normal, disappearance time of neovascularization and absorption time of fundus hemorrhage), levels of serum interleukin-6(IL-6)and VEGF, central macular thickness(CMT), best corrected visual acuity(BCVA), and complications were compared between the two groups, and the relationship between their clinical efficacy and different OCT types were analyzed.RESULTS: There was no significant difference in the improvement time of macular edema, time of retinal thickness returning to normal, disappearance time of neovascularization and absorption time of fundus hemorrhage between the two groups(P>0.05); After treatment, the values of IL-6, VEGF and BCVA in the two groups were significantly lower than those before treatment(P<0.01), but there was no significant difference between the two groups(P>0.05); compared with before treatment, CMT was significantly decreased in both groups after treatment(P<0.05), and compared with ranibizumab group, the CMT was significantly decreased in the conbercept group(P<0.01); there was no significant difference in the incidence of complications between two groups(P>0.05); there were significant differences in the total effective rate among patients with serous retinal detachment(SRD), cystoid macular edema(CME)and diffuse retinal thickening(DRT; P<0.05), among which DRT had the highest total effective rate and SRD had the lowest total effective rate.CONCLUSION: Both conbercept and ranibizumab in the treatment of DME can effectively improve the clinical symptoms of patients and reduce the inflammatory response, but conbercept can better reduce the level of CMT, and has better treatment effect on DRT-type DME patients.

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