1.Advances in Animal Modeling in the Study of Bone-Vascular Axis Comorbidities
Jiayang LI ; Yumeng ZHOU ; Yuwen LUO ; Xuelin HUANG ; Demao ZHANG ; Xiaoheng LIU
Journal of Sichuan University (Medical Sciences) 2025;56(2):355-363
Osteoporosis and cardiovascular calcification,two major age-related chronic diseases that China is confronting today,pose serious threats to public health.Previous studies have reported overlapping connections in the pathological processes and molecular mechanisms of these two diseases,particularly concerning inflammation,oxidative stress,and dysregulation of mineral metabolism,and that these two diseases tend to share common pathogenic factors.However,research exploring the comorbidity mechanisms of the two diseases remains limited in both depth and scope,largely due to the lack of widely accepted comorbidity animal models.Herein,we analyzed the latest research findings on the comorbidity mechanisms of vascular calcification and osteoporosis,focusing on summarizing the animal disease models currently in extensive use and the relevant evaluation criteria.We aim to provide new references for comorbidity research models and offer scientific evidence for future studies on pathological mechanisms and the development of new therapeutic strategies.
2.Progress in clinical research of transjugular intrahepatic portosystemic shunt for the treatment of portal cavernous transformation
Jiayang ZHU ; Bing ZHOU ; Xuanyi CHEN ; Junkang WANG ; Bo LI ; Rongqing QIN ; Yubo ZHANG ; Ruochen HU
Journal of Interventional Radiology 2025;34(8):900-904
Clinically,the incidence of portal vein thrombosis(PVT)in patients with cirrhosis can be up to 10%-23%.When PVT is not treated promptly,it may develop to cavernous transformation of the portal vein(CTPV).CTPV can aggravate portal hypertension,accelerate the progression of esophagogastric varices bleeding,refractory ascites,refractory peritonitis,biliary tract diseases,and hepatic insufficiency.At present,noninvasive imaging techniques such as portal vein reconstruction,enhanced CT and ultrasound are mostly used to make the diagnosis and evaluation of CTPV.It is rather difficult to perform portosystemic shunt surgery in patients with CTPV complicated by portal hypertension,which was once regarded as a contraindication for interventional portosystemic shunt procedures.With the improvement of related technologies and surgical instruments,the transjugular intrahepatic portosystemic shunt(TIPS)has become an important treatment for CTPV.This paper aims to make a comprehensive review about the relevant researches concerning the portosystemic shunt surgery in patients with CTPV so as to clarify the importance of TIPS in the treatment of CTPV.
3.Clinical study on the treatment of high perianal abscess with floating line drainage through small incision
Desheng ZOU ; Lifeng LU ; Yingfeng ZHU ; Jiayang ZHOU ; Yuan BIAN ; Guang LIU
Chinese Journal of Postgraduates of Medicine 2024;47(12):1148-1152
Objective:To explore the clinical efficacy of small incision floating line drainage for the treatment of high perianal abscess.Methods:A retrospective analysis was conducted on the clinical data of 95 patients with high perianal abscess treated at the Medical Community General Hospital of Shaoxing Central Hospital from April 2019 to April 2021. Among them, 47 cases were treated with small incision floating line drainage (experimental group), and 48 cases were treated with conventional multi incision drainage (control group). The surgical time, intraoperative bleeding, postoperative pain, urination status, anal function evaluation, wound healing status and the clinical efficacy of the patient after 2 months of treatment were compared between the two groups.Results:The surgical time, intraoperative bleeding volume in the experimental group were lower than those in the control group: (18.70 ± 0.48) min vs. (38.10 ± 2.52) min, (32.35 ± 3.56) ml vs. (51.56 ± 6.24) ml, there were statistical differences ( P<0.05). The postoperative pain, urination status, anal function evaluation in the experimental group were better than those in the control group. In the experimental group, multiple incision drainage had a greater impact on patients and the wound healing cycle was longer. After treatment for 2 months, the total effective rate in the experimental group was better than that in the control group: 100.00%(47/47) vs. 91.67%(44/48), there was statistical difference ( χ2 = 4.09, P<0.05). Conclusions:Patients with high perianal abscess and treated with small incision floating line drainage has a shorter wound healing cycle, less pain, lower anal damage, and better clinical efficacy.
4.Study on Scientific Data Citation Behavior and Its Traceability in the Field of Medical and Population Health
Yiran ZHANG ; Jingchen ZHANG ; Jingwen SUN ; Jiayang WANG ; Genglu ZHANG ; Wei ZHOU
Journal of Medical Informatics 2024;45(9):27-31,43
Purpose/Significance By investigating and analyzing the characteristics of scientific data citation of scientific data sharing institutions in the field of medical and population health,the paper provides references and guidance for open sharing and standardized ci-tation of scientific data.Method/Process Taking the National Population Health Data Center as an example,the literature analysis meth-od is used to analyze the scientific data citation behavior and its traceability in this field.Result/Conclusion It is found that there are non-standard citation behaviors such as inconsistent labeling positions and missing citation elements in the scientific data in the field of medical and population health,and a large number of open and shared scientific data cannot be effectively traced.It is urgent to improve the standards of scientific data citation,strengthen the management of scientific data platform,enhance the awareness of scientific re-searchers,and promote scientific data sharing and citation.
5.The application of modified Hanley surgery in abscess of anal tube space and its influences on anal function, interleukin-8 and interleukin-6
Desheng ZOU ; Lifeng LU ; Jiayang ZHOU ; Guang LIU
Chinese Journal of Postgraduates of Medicine 2024;47(5):422-427
Objective:To investigate the application of modified Hanley surgery in abscess of anal tube space (AATS), and its influences on anal function, interleukin (IL)-8 and IL-6.Methods:The clinical data of 96 patients with AATS from February 2020 to February 2022 in Shaoxing Central Hospital were retrospectively analyzed. Among them, 48 patients were treated with incision-thread drawing procedure (ITDP group), and 48 patients were treated with modified Hanley group (modified Hanley group). The curative effect, anal function, inflammatory factor level, neovascularization factor level and wound healing status were compared between the two groups.Results:There was no significant difference in the recovery rate between modified Hanley group and ITDP group: 100.00% (48/48) vs. 95.83% (46/48), χ2 = 0.51, P>0.05. The poor rate of anal function 2 months after surgery in modified Hanley group was significantly lower than that in ITDP group: 0 vs. 12.50% (6/48), and there was statistical difference ( P<0.05). The tumor necrosis factor-α(TNF-α), IL-8 and IL-6 24 h after surgery in modified Hanley group were significantly lower than those in ITDP group: (127.11 ± 13.96) ng/L vs. (160.59 ± 11.57) ng/L, (92.20 ± 11.62) ng/L vs. (124.33 ± 12.05) ng/L and (79.38 ± 12.47) ng/L vs. (100.07 ± 12.50) ng/L, and there were statistical differences ( P<0.01). The monocyte chemotactic protein-1 1 week after surgery in modified Hanley group was significantly lower than that in ITDP group: (92.85 ± 14.63) ng/L vs. (122.90 ± 15.59) ng/L, the vascular endothelial growth factor-A and transforming growth factor-β 1 were significantly higher than those in ITDP group: (188.06 ± 22.53) ng/L vs. (137.80 ± 19.52) ng/L and (1 897.6 ± 97.3) ng/L vs. (1 608.6 ± 98.1) ng/L, and there were statistical differences ( P<0.01). The pain score, edema score and neonatal granulation score 7, 14 and 21 d after surgery in modified Hanley were significantly lower than those in ITDP group, and there were statistical differences ( P<0.01). Conclusions:In the treatment of AATS, the modified Hanley surgery not only contributes to the thorough removal of the lesions, but also plays a positive role in protecting the anal function, reducing the level of inflammation, and promoting the recovery of endothelial function.
6.Training path for educational physicians in hospitals affiliated to universities based on the Snell model
Mingyu DUAN ; Xu ZHOU ; Yanmin CHEN ; Huiming LI ; Jiayang XIA ; Xiaoling HAN ; Ying HUANG ; Mingqi TENG ; Wei LIU
Chinese Journal of Medical Education Research 2023;22(12):1816-1820
In order to further strengthen the training and management of clinical teachers, broaden the career development channels of clinical teachers, and truly stimulate their teaching enthusiasm and initiative, this study further classifies clinical teachers according to the principle of the Snell model, focuses on the training of educational clinicians, and explores the training mechanism of teaching talents in line with the actual development needs of hospitals affiliated to universities from the aspects of selection, training, incentive, and assessment. The results of practice show that related practices have a good effect, and the mean number of teaching achievements was 1.98 for the 56 educational physicians, which was 3.9 times that for non-educational physicians. The per capita teaching achievements of educational physicians tended to increase every year compared with those of non-educational physicians. The training path for educational physicians provides useful experience for the construction of clinical teaching team and the high-quality development of education and teaching, and at the same time, it is necessary to further strengthen the dynamic adjustment of talent echelon, the improvement of operating mechanism, and the introduction of new technology.
7.Effects of rapid drug sensitivity testing for multidrug-resistant bacteria on the prognosis of patients with severe intra-abdominal infection
Jiajie WANG ; Jiayang LI ; Wenqi WU ; Mingjie QIU ; Cunxia WU ; Zhitao ZHOU ; Meilin WU ; Sai TIAN ; Lei WU ; Jinpeng ZHANG ; Zherui ZHANG ; Ruixia TIAN ; Zhiwu HONG ; Huajian REN ; Gefei WANG ; Xiuwen WU ; Jian'an REN
Chinese Journal of Gastrointestinal Surgery 2023;26(9):847-852
Objective:To examine the clinical value of rapid detection of drug-resistant bacteria by immunochromatography and the effects of rapid detection on the prognosis of patients with severe intra-abdominal infection complicated by carbapenem-resistant Enterobacteriaceae (CRE) bloodstream infection.Methods:This was a retrospective cohort study. We analyzed clinical data of 73 patients with severe abdominal infections with sepsis or septic shock complicated by CRE bloodstream infection admitted to the general surgery department of Jinling Hospital between February 2022 and February 2023. Patients were divided into a colloidal gold immunochromatographic assay (GICA) group (17 patients) and conventional testing group (56 patients) based on whether a GICA for CRE had been performed on the patients' first blood culture sample during the diagnosis and treatment process. There were no statistically significant differences between the GICA and conventional testing groups in age ([55.9±17.3] vs. [47.6±16.4] years), sex ([16 men vs. one woman ] vs. [41 men vs. 15 women]), median Charlson comorbidity index (3.0[2.0,4.0] vs. 3.0[2.0, 4.8]), septic shock (10 vs. 39), or acute kidney injury (8 vs. 40) (all P>0.05). Both groups routinely underwent traditional bacterial identification and drug susceptibility testing. Additionally, patients in the GICA group were tested directly for positive blood cultures using a GICA carbapenemase test kit. The main outcomes were mortality rates on Days 28 and 90 after the first identification of CRE bloodstream infection in both groups. We also compared the microbial clearance rate, duration of hospitalization and intensive care unit stay, and time from onset of CRE bloodstream infection to initiation of targeted and appropriate antibiotics between the two groups. Results:The rate of microbial clearance of bloodstream infection was significantly greater in the GICA group than in the conventional testing group (15/17 vs. 34/56 [60.7%], χ 2=4.476, P=0.034), whereas the 28-day mortality tended to be lower in the GICA than conventional testing group [5/17 vs. 44.6% [25/56], χ 2=1.250, P=0.264). The 90-day mortality (8/17 vs. 53.6% [30/56], χ 2=0.222, P=0.638), median duration of hospitalization (37.0 [18.0, 46.5] days vs. 45.5 [32.2, 64.8] days, Z=-1.867, P=0.062), and median duration of intensive care unit stay (18.0 [6.5, 35.0] days vs. 32.0 [5.0, 51.8] days, Z=-1.251, P=0.209). The median time between the onset of bloodstream infection and administration of antibiotics was 49.0 (38.0, 69.0) hours in the GICA group, which is significantly shorter than the 163.0 (111.8, 190.0) hours in the conventional testing group ( Z=-5.731, P<0.001). The median time between the onset of bloodstream infection and administration of appropriate antibiotics was 40.0 (34.0, 80.0) hours in the GICA group, which is shorter than in the conventional testing group (68.0 [38.2, 118.8]) hours; however, this difference is not statistically significant ( Z=-1.686, P=0.093). Conclusions:GICA can provide information on carbapenemase- producing pathogens faster than traditional drug sensitivity testing, enabling early administration of the optimal antibiotics. The strategy of 'carbapenemase detection first' for managing bacterial infection has the potential to improve prognosis of patients and reduce mortality rate.
8.Effects of rapid drug sensitivity testing for multidrug-resistant bacteria on the prognosis of patients with severe intra-abdominal infection
Jiajie WANG ; Jiayang LI ; Wenqi WU ; Mingjie QIU ; Cunxia WU ; Zhitao ZHOU ; Meilin WU ; Sai TIAN ; Lei WU ; Jinpeng ZHANG ; Zherui ZHANG ; Ruixia TIAN ; Zhiwu HONG ; Huajian REN ; Gefei WANG ; Xiuwen WU ; Jian'an REN
Chinese Journal of Gastrointestinal Surgery 2023;26(9):847-852
Objective:To examine the clinical value of rapid detection of drug-resistant bacteria by immunochromatography and the effects of rapid detection on the prognosis of patients with severe intra-abdominal infection complicated by carbapenem-resistant Enterobacteriaceae (CRE) bloodstream infection.Methods:This was a retrospective cohort study. We analyzed clinical data of 73 patients with severe abdominal infections with sepsis or septic shock complicated by CRE bloodstream infection admitted to the general surgery department of Jinling Hospital between February 2022 and February 2023. Patients were divided into a colloidal gold immunochromatographic assay (GICA) group (17 patients) and conventional testing group (56 patients) based on whether a GICA for CRE had been performed on the patients' first blood culture sample during the diagnosis and treatment process. There were no statistically significant differences between the GICA and conventional testing groups in age ([55.9±17.3] vs. [47.6±16.4] years), sex ([16 men vs. one woman ] vs. [41 men vs. 15 women]), median Charlson comorbidity index (3.0[2.0,4.0] vs. 3.0[2.0, 4.8]), septic shock (10 vs. 39), or acute kidney injury (8 vs. 40) (all P>0.05). Both groups routinely underwent traditional bacterial identification and drug susceptibility testing. Additionally, patients in the GICA group were tested directly for positive blood cultures using a GICA carbapenemase test kit. The main outcomes were mortality rates on Days 28 and 90 after the first identification of CRE bloodstream infection in both groups. We also compared the microbial clearance rate, duration of hospitalization and intensive care unit stay, and time from onset of CRE bloodstream infection to initiation of targeted and appropriate antibiotics between the two groups. Results:The rate of microbial clearance of bloodstream infection was significantly greater in the GICA group than in the conventional testing group (15/17 vs. 34/56 [60.7%], χ 2=4.476, P=0.034), whereas the 28-day mortality tended to be lower in the GICA than conventional testing group [5/17 vs. 44.6% [25/56], χ 2=1.250, P=0.264). The 90-day mortality (8/17 vs. 53.6% [30/56], χ 2=0.222, P=0.638), median duration of hospitalization (37.0 [18.0, 46.5] days vs. 45.5 [32.2, 64.8] days, Z=-1.867, P=0.062), and median duration of intensive care unit stay (18.0 [6.5, 35.0] days vs. 32.0 [5.0, 51.8] days, Z=-1.251, P=0.209). The median time between the onset of bloodstream infection and administration of antibiotics was 49.0 (38.0, 69.0) hours in the GICA group, which is significantly shorter than the 163.0 (111.8, 190.0) hours in the conventional testing group ( Z=-5.731, P<0.001). The median time between the onset of bloodstream infection and administration of appropriate antibiotics was 40.0 (34.0, 80.0) hours in the GICA group, which is shorter than in the conventional testing group (68.0 [38.2, 118.8]) hours; however, this difference is not statistically significant ( Z=-1.686, P=0.093). Conclusions:GICA can provide information on carbapenemase- producing pathogens faster than traditional drug sensitivity testing, enabling early administration of the optimal antibiotics. The strategy of 'carbapenemase detection first' for managing bacterial infection has the potential to improve prognosis of patients and reduce mortality rate.
9.Repurposing econazole as a pharmacological autophagy inhibitor to treat pancreatic ductal adenocarcinoma.
Ningna WENG ; Siyuan QIN ; Jiayang LIU ; Xing HUANG ; Jingwen JIANG ; Li ZHOU ; Zhe ZHANG ; Na XIE ; Kui WANG ; Ping JIN ; Maochao LUO ; Liyuan PENG ; Edouard C NICE ; Ajay GOEL ; Suxia HAN ; Canhua HUANG ; Qing ZHU
Acta Pharmaceutica Sinica B 2022;12(7):3085-3102
Pancreatic ductal adenocarcinoma (PDAC) is characterized by the highest mortality among carcinomas. The pathogenesis of PDAC requires elevated autophagy, inhibition of which using hydroxychloroquine has shown promise. However, current realization is impeded by its suboptimal use and unpredictable toxicity. Attempts to identify novel autophagy-modulating agents from already approved drugs offer a rapid and accessible approach. Here, using a patient-derived organoid model, we performed a comparative analysis of therapeutic responses among various antimalarial/fungal/parasitic/viral agents, through which econazole (ECON), an antifungal compound, emerged as the top candidate. Further testing in cell-line and xenograft models of PDAC validated this activity, which occurred as a direct consequence of dysfunctional autophagy. More specifically, ECON boosted autophagy initiation but blocked lysosome biogenesis. RNA sequencing analysis revealed that this autophagic induction was largely attributed to the altered expression of activation transcription factor 3 (ATF3). Increased nuclear import of ATF3 and its transcriptional repression of inhibitor of differentiation-1 (ID-1) led to inactivation of the AKT/mammalian target of rapamycin (mTOR) pathway, thus giving rise to autophagosome accumulation in PDAC cells. The magnitude of the increase in autophagosomes was sufficient to elicit ER stress-mediated apoptosis. Furthermore, ECON, as an autophagy inhibitor, exhibited synergistic effects with trametinib on PDAC. This study provides direct preclinical and experimental evidence for the therapeutic efficacy of ECON in PDAC treatment and reveals a mechanism whereby ECON inhibits PDAC growth.
10.Effects of Guhong injection on ATPase activity and inflammatory response after cerebral ischemia/reperfusion injury in rats
Jiayang WAN ; Haitong WAN ; Ling DENG ; Junkui CHEN ; Huifen ZHOU ; Yu HE
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2017;24(5):452-455,507
Objective To investigate the influence of Guhong injection (GHI) on ATPase activity and inflammatory response after cerebral ischemia/reperfusion (I/R) injury in rats, and evaluate its protective effects on cerebral I/R injury. Methods Seventy-two male Sprague-Dawley (SD) rats were divided into sham group, I/R group, nimodipine group, and the low-dose (2.5 mL/kg, GHI-L), medium-dose (5.0 mL/kg, GHI-M), and high-dose (10.0 mL/kg, GHI-H) of GHI groups according to the random number table method, with 12 rats in each group. The middle cerebral artery occlusion (MCAO) model was established by the intraluminal suture method to prepare the model of focal cerebral ischemia, and reperfusion was performed after 1.5 hours of occluding the middle cerebral artery; the sham group had the same operation process except inserting the nylon thread. The injection of drug in various drug-treated groups was carried out via a tail vein at 0, 12, 24 hours after the onset of reperfusion, while the sham group and I/R group received the same amount of normal saline. At 12 hours after last drug administration, the scores of neurological deficit symptoms were evaluated; the cerebral infarction was observed by triphenyl tetrazolium chloride (TTC) staining; the Na+-K+-ATPase and Ca2+-ATPase activities in the brain tissue were measured by phosphorus determination; the contents of interleukin-6 (IL-6), monocyte chemotactic factor-1 (MCP-1), nitric oxide (NO) in serum were detected by enzyme linked immunosorbent assay (ELISA). Results Compared with the sham group, the neurological function score was significantly decreased, the cerebral infarction was serious, the activities of ATPase was obviously decreased, and the levels of serum inflammatory factors were significantly increased in I/R group. Compared with the I/R group, the neurological function scores were significantly increased in GHI-L group, GHI-M group, GHI-H group and nimodipine group (9.03±0.63, 10.54±2.55, 12.33±1.87, 12.06±1.89 vs. 8.17±1.05, all P < 0.05), the volumes of cerebral infarction were obviously reduced [(18.51±1.80)%, (15.98±1.34)%, (8.61±1.16)%, (8.09±0.96)% vs. (26.52±2.07)%, all P < 0.01], the activities of ATPase were significantly increased [Na+-K+-ATPase (μmol·mg-1·h-1):5.10±0.30, 5.34±0.26, 6.19±0.17, 5.86±0.31 vs. 3.98±0.35, Ca2+-ATPase (μmol·mg-1·h-1): 3.68±0.44, 4.43±0.29, 5.03±0.27, 4.17±0.30 vs. 1.87±0.46, all P < 0.01], and the levels of serum inflammatory factors were decreased obviously [IL-6 (ng/L): 51.61±5.55, 43.88±4.05, 39.71±2.22, 41.28±2.66 vs. 60.11±6.61, MCP-1 (ng/L): 227.82±7.07, 201.58±13.10, 177.23±10.46, 126.80±8.49 vs. 296.01±12.85, NO (μmol/L): 54.48±3.23, 46.84±2.69, 41.15±2.80, 48.62±2.34 vs. 65.25±3.88, all P < 0.05]. Conclusions GHI not only can improve the energy metabolism of brain tissue in a dose-dependent manner, but also inhibit the inflammatory cascade of damage after cerebral I/R in rats, which might be its protective mechanism on cerebral ischemia injury.

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