Objective To analyze the cunent situation and latent profiles of nurses'perceived organizational support,and explore the influencing factors of different types.Methods Through convenience sampling,a total of 1,860 nurses from the Pearl River Delta,Northern Guangdong,Eastern Guangdong and Western Guangdong regions of Guangdong Province were selected for the survey between October and December 2023.The demographic questionnaire,the Perceived Organizational Support Scale,and the Psychological Resilience Scale were used for investigation.The latent profiles of the nurses'perceived organizational support,the influencing factors of latent profiles were identified by single-factor analysis and multivariate Logistic regression.Results The score of the items of the perceived organizational support in l,819 nurses is(3.47±0.88)scores.Nurses perceived organizational support is divided into 3 latent classes,namely"poor group"(10.1％),"balanced group"(44.4％),and"rich group"(45.5％).The influencing factors include recruitment type,hospital level,and psychological resilience(all P＜0.05).Conclusion The perceived organizational support among nurses is moderately high and heterogeneous,which could be divided into 3 latent profiles.Nursing managers should focus on nurses from the poor group and balanced group and intervene with nurses according to the influencing factors of the different latent profiles to improve the level of nurses perceived organizational support.

Objective To analyze the cunent situation and latent profiles of nurses'perceived organizational support,and explore the influencing factors of different types.Methods Through convenience sampling,a total of 1,860 nurses from the Pearl River Delta,Northern Guangdong,Eastern Guangdong and Western Guangdong regions of Guangdong Province were selected for the survey between October and December 2023.The demographic questionnaire,the Perceived Organizational Support Scale,and the Psychological Resilience Scale were used for investigation.The latent profiles of the nurses'perceived organizational support,the influencing factors of latent profiles were identified by single-factor analysis and multivariate Logistic regression.Results The score of the items of the perceived organizational support in l,819 nurses is(3.47±0.88)scores.Nurses perceived organizational support is divided into 3 latent classes,namely"poor group"(10.1％),"balanced group"(44.4％),and"rich group"(45.5％).The influencing factors include recruitment type,hospital level,and psychological resilience(all P＜0.05).Conclusion The perceived organizational support among nurses is moderately high and heterogeneous,which could be divided into 3 latent profiles.Nursing managers should focus on nurses from the poor group and balanced group and intervene with nurses according to the influencing factors of the different latent profiles to improve the level of nurses perceived organizational support.

Objective To explore the optimization strategy of Qishen Granules in treating coronary heart disease with heart failure(CHD-HF)based on data mining and the pathogenic"toxin"theory,and to predict its active components and mechanisms using network pharmacology.Methods Literature on traditional Chinese medicine(TCM)for treating CHD-HF was collected from relevant databases,and prescriptions were screened and established into a database according to inclusion and exclusion criteria.Frequency,association rules,and hierarchical clustering analyses were performed using the Ancient and Modern Medical Case Cloud Platform.Network pharmacology techniques were applied to screen potential targets of the optimized combination for treating CHD-HF,and carry out the targets and pathways enrichment analysis.Results A total of 336 articles and 339 prescriptions involving 191 herbs were included,with 12 herbs used more than 100 times.The core drug combinations for treating CHD-HF included Astragali Radix,Poria,Salviae Miltiorrhizae Radix et Rhizoma,Glycyrrhizae Radix et Rhizoma,Chuanxiong Rhizoma,etc,while commonly used detoxifying herbs included Leonuri Herb,Coptidis Rhizoma,etc.Association rule analysis yielded 10 two-item associations and 17 three-item associations;clustering analysis grouped the data into 5 categories.Based on data mining and the pathogenic"toxin"theory,the combination for treating CHD-HF was optimized to include Astragali Radix,Salviae Miltiorrhizae Radix et Rhizoma,Aconiti Lateralis Radix Praeparata,Glycyrrhizae Radix et Rhizoma,Coptidis Rhizoma,and Taraxaci Herba.Network pharmacology analysis identified 366 common targets between the optimized combination and CHD-HF,with 16 core targets screened out.Kyoto Encyclopedia of Genes and Genomes(KEGG)analysis revealed significant enrichment in pathways such as cancer pathways,lipid and atherosclerosis,Rap1 signaling pathway,hypoxia-inducible factor 1(HIF-1)signaling pathway,phosphatidylinositol-3-kinase/protein kinase B(PI3K/Akt)signaling pathway,Ras signaling pathway,and mitogen-activated protein kinase(MAPK)signaling pathway.Conclusion TCM treatment for CHD-HF primarily focuses on replenishing qi and warming yang,activating blood circulation and resolving fluid retention.Based on data mining results and the pathogenic"toxin"theory,the formulation strategy of Qishen Granules for treating CHD-HF was optimized,potentially exerting therapeutic effects through anti-inflammatory,anti-apoptotic,and anti-hypoxia physiological processes.

Malignant insulinoma is a kind of rare and challenging neuroendocrine tumor. It is often accompanied by distant metastasis, among which liver metastasis is most common, and the prognosis is often non-promising. In this paper, we report a case of multiple liver metastases from malignant insulinoma. The patient, a 70-year-old male, was admitted to the hospital due to "episodic consciousness disorder for more than four months." Blood glucose monitoring revealed recurrent hypoglycemia in the early morning, after meals, and at night. Pancreatic perfusion CT and dynamic enhanced MRI of the liver revealed a mass in the uncinate process of the pancreatic head and multiple liver metastases. Percutaneous liver biopsy confirmed the diagnosis of insulinoma. After multidisciplinary discussions, hepatic artery embolization and radiofrequency ablation were performed in stages, in combination with everolimus treatment. Thereafter, the enhanced CT demonstrated that some liver metastases shrank. The patient had regular meals, and the blood sugar gradually increased and remained normal thereafter. This article discusses this case's clinical characteristics and multidisciplinary collaborative diagnosis and treatment, aiming to provide experience for the comprehensive clinical diagnosis and treatment of malignant insulinoma patients.

Objective:To investigate the application value of antegrade splenic superior region dissection first in laparoscopic total gastrectomy of obesity gastric cancer.Methods:The retrospective and descriptive study was conducted. The clinicopathological data of 21 obesity patients with gastric cancer who underwent laparoscopic total gastrectomy in Renji Hospital of Shanghai Jiaotong University School of Medicine from July 2018 to October 2023 were collected. There were 16 males and 5 females, aged (58±13)years. All 21 patients underwent laparoscopic total gastrec-tomy with antegrade splenic superior region dissection first. Observation indicators: operation time, volume of intraoperative blood loss, laparotomy conversion, intraoperative splenic hemorrhage or gastric hemorrhage, lymph node dissection, time to postoperative first flatus, time to postoperative initial liquid food intake, duration of postoperative hospital stay, postoperative complication. Measure-ment data with normal distribution were represented as Mean± SD, and count data were expressed as absolute numbers. Results:All 21 patients underwent laparoscopic total gastrectomy success-fully, with the operation time of (283±47)minutes, time for splenogastric ligament and vascular manage-ment of (34±12)minutes, volume of intraoperative blood loss of (143±86)mL, and no laparotomy conversion. There was no intraoperative splenic hemorrhage or gastric haemorrhage. The total number of lymph node dissected in 21 patients was 375, with the number of lymph node dissected as (21±9)per case. Time to postoperative first flatus, time to postoperative initial liquid food intake and duration of postoperative hospital stay in 21 patients were (3.1±0.7)days, (4.0±0.8)days and (10.1±3.0)days, respectively. There were 2 patients with postoperative complications, including 1 case of incision infection and 1 case of lung infection. The 2 patients with postoperative com-plications were recovered and discharged after conservative treatment. There was no death during the postoperative 30 days.Conclusion:The application of antegrade splenic superior region dissec-tion first in laparoscopic total gastrectomy is safe and feasible, which can reduce surgical difficulty.

Objective:To investigate the short-term efficacy of laparoscopic total gastrec-tomy with hand-sewn esophagojejunostomy versus Roux-en-Y anastomosis.Methods:The propen-sity score matching and retrospective cohort study was conducted. The clinicopathological data of 159 patients who underwent laparoscopic total gastrectomy in Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine from October 2014 to July 2021 were collected. There were 107 males and 52 females, aged 63(range, 28?79)years. Of 159 patients, 71 cases undergoing totally laparoscopic total gastrectomy with hand-sewn esophagojejunostomy were allocated into totally laparoscopic group and 88 cases undergoing laparoscopic-assisted total gastrectomy with Roux-en-Y anastomosis were allocated into laparoscopic-assisted group, respectively. Observation indicators: (1) propensity score matching and comparison of general data of patients between the two groups after matching; (2) intraoperative and postoperative conditions; (3) perioperative complications. Propensity score matching was done by the 1:1 nearest neighbor matching method. Measurement data with normal distribution were expressed as Mean± SD, and t test was used for comparison between groups. Measurement data with skewed distribution were expressed as M(range), and the Mann-Whitney U test was used for comparison between groups. Count data were expressed as absolute numbers or percentages, and comparison between groups was analyzed using the chi-square test or Fisher's exact probability method. The rank sum test was used for comparison of ordinal data. Results:(1) Propensity score matching and comparison of general data of patients between the two groups after matching. Of 159 patients, 112 cases were successfully matched, including 56 cases in the totally laparoscopic group and 56 cases in the laparoscopic-assisted group. Before propensity score matching, age, cases with tumor located in cardia or gastric body in the totally laparoscopic group were 61(range, 30?76)years, 26, 45, respectively. The above indicators in the laparoscopic-assisted group were 65(range, 28?79)years, 50, 38, respectively. There were significant differences in the above indicators between the two groups ( Z=?2.89, χ2=6.43, P<0.05). After propensity score matching, the males and females, age, body mass index, cases of American Society of Anesthesiologists classification Ⅰ, Ⅱ, Ⅲ and Ⅳ, tumor diameter, cases with tumor located in cardia or gastric body, cases in TNM stage Ⅰ, Ⅱ and Ⅲ of patients in the totally laparoscopic group were 40, 16, (62±9)years, (22.7±2.8)kg/m 2, 22, 26, 7, 1, 3.5(range, 0.6?17.0)cm, 24, 32, 22, 9, 25. The above indicators of patients in the laparoscopic-assisted group were 38, 18, (62±10)years, (22.7±3.2)kg/m 2, 19, 32, 5, 0, 4.0(range, 0.6?15.0)cm, 23, 33, 21, 7, 28, respectively. There was no significant difference in the above indicators between the two groups ( χ2=0.17, t=?0.09, ?0.04, Z=?0.12, ?0.82, χ2=0.04, Z=?0.42, P>0.05). The elimination of age and tumor location confounding bias ensured comparability between the two groups. (2) Intraoperative and postoperative conditions: after propensity score matching, the total operation time, time of esophagojejunostomy, postopera-tive 24-hour pain numerical score and time to first out-off bed activities were (310±49)minutes, (37±10)minutes, 2.3±0.8 and (2.4±0.7)days for patients in the totally laparoscopic group, versus (344±77)minutes, (44±12)minutes, 3.1±1.2 and (2.9±1.0)days in the laparoscopic-assisted group, showing significant differences between the two groups ( t=?2.85, ?3.05, ?4.20, ?3.10, P<0.05). (3) Perioperative complications: after propensity score matching, 6 cases of the patients in the totally laparoscopic group had Clavien-Dindo grade 2 or higher complications, including 2 cases of anas-tomotic leak, 1 case of anastomotic stenosis, 1 case of pleural effusion, 1 case of abdominal infection and 1 case of intestinal obstruction. The incidence of Clavien-Dindo grade 2 or higher complications was 10.7%(6/56). In the laparoscopic-assisted group, 5 patients had Clavien-Dindo grade 2 or higher complications, including 2 cases of anastomotic leak, 1 case of abdominal infection, 1 case of intestinal obstruction and 1 case of cholangitis. The incidence of Clavien-Dindo grade 2 or higher complications was 8.9%(5/56). There was no significant difference in the incidence of Clavien-Dindo grade 2 or higher complications between the two groups ( χ2=0.10, P>0.05). Patients with anas-tomotic leak were improved after puncture and drainage, secondary surgery and conservative treat-ment, and other complications were improved after symptomatic treatment. Conclusions:Com-pared with Roux-en-Y anastomosis in laparoscopic total gastrectomy, the time of hand-sewn esophagojejunostomy and esophago-jejunal anastomosis are shorter, patients have less postopera-tive pain and faster postoperative recovery. Both methods have good peri-operative safety.

Objective:To observe the effect of hypoxia on the dedifferentiation process of chondrocytes in vitro and explore the role of collagen prolyl 4-hydroxylase (C-P4Hs).Methods:Chondrocytes were treated with COCl 2 for different concentrations, and selecting the optimal COCl 2 concentration for hypoxia inductionwas100 μmol/L, the mouse costal chondrocytes were divided into the normal oxygen group and the hypoxia group, and the indexes of the 3rd generation 0.5-72 h and the 1st, 3rd, 5th and 7th generation at 72 h were detected respectively. The proliferation rate was determined by CCK8 method and cell count, and the dynamic changes of HIF-1α, P4Hα1, P4Hα2 and Col II in each group were detected by RT-qPCR, IF and Western blot. Results:Costal chondrocytes were cultured under different concentration of COCl 2 for 48 h. When COCl 2>150 μmol/L, the proliferation rate ( P<0.05) was significantly decreased. Normal oxygen and hypoxia induced rib chondrocytes for 0-72 h, and RT-qPCR showed significant increases in P4Hα2 and Col II mRNA in hypoxia group ( P<0.05). IF showed that HIF-1α and P4Hα2 accumulated in the nucleus under hypoxia, and P4Hα2 gradually entered the cytoplasm from the nucleus. Westernblot analysis showed that HIF-1α and P4Hα2 protein expressions were significantly increased in hypoxia group ( P<0.05). The expression of Col II protein in hypoxia group ( P<0.05) increased at the induction stage. CCK8 and cell count results showed that the proliferation rate and cell number of each generation in the hypoxic group were significantly increased ( P<0.05), and there was still potential for proliferation when the cells were transferred to the 6-7 generation. RT-qPCR showed that hypoxia group each generation cells P4Hα2, Col II mRNΑ were significantly increased ( P<0.05). Westernblot results showed that HIF-1α, P4Hα2 and Col II protein expressions were increased in each generation of hypoxia group ( P<0.05). ConcIusion:Increased expression of P4Hα2 through hypoxia induced HIF-1α can accelerate post-translational modification of Col II in chondrocytes and increase synthesis and accumulation of Col II. P4Hα2 may be responsible for increased proliferation rate and delayed dedifferentiation of chondrocytes cultured in vitro under hypoxia condition.

Objective:To investigate the application value of hand-sewn esophagojejunal anastomosis (EJA) in totally laparoscopic total gastrectomy (TLTG).Methods:The retrospective and descriptive study was conducted. The clinicopathological data of 35 patients with early or advanced upper gastric cancer who were admitted to Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine between July 2018 and December 2019 were collected. There were 24 males and 11 females, aged (60±10)years, with a range of 35-75 years. All the 35 patients underwent TLTG combined with hand-sewn EJA. Observation indicators: (1) intraoperative situations; (2) postoperative situations; (3) postoperative pathological examination; (4) follow-up and survival. Follow-up was conducted using telephone interview, outpatient examination, short message service and WeChat to detect tumor recurrence, metastasis and survival of patients up to January 2020.Measurement data with normal distribution were repressented as Mean± SD. Measurement data with skewed distribution were represented as M (range). Count data were expressed as absoulte numbers or persentages. Results:(1) Intraoperative situations: all the 35 patients underwent TLTG combined with hand-sewn EJA successfully. The operation time, volume of intraoperative blood loss, time of hand-sewn EJA, costs of consumables used in the intraoperative resection and reconstruction, and costs of consumables used in EJA of the 35 patients were 305 minutes(range, 232-406 minutes), 94 mL(range, 50-300 mL), 37 minutes(range, 20-65 minutes), 13 674 yuan(range, 11 929-15 255 yuan) and 491 yuan(range, 223-1 044 yuan), respectively. Of the 35 patients, 4 received intraoperative blood transfusion. (2) Postoperative situations: time to first out-of-bed activity, postoperative indwelling time of gastric tube, time to initial liquid diet intake, the time to abdominal drainage tube removal and duration of postoperative hospital stay of the 35 patients were 2 days(range, 1-3 days), 4 days(range, 2-11 days), 5 days(range, 4-12 days), 8 days(range, 5-15 days) and 9 days(range, 7-16 days), respectively. Of the 35 patients, 3 had perioperative complications. One patient had inflammation and infection in the pancreatic tail and was discharged at postoperative 16 days after conservative treatment of fasting, somatostatin to reduce the pancreatic secretion, adequate drainage, anti-infection and nutritional support. One had postoperative intestinal incomplete obstruction and was discharged at postoperative 12 days after treatment with gastrointestinal decompression and enema for relief of obstruction. One had pulmonary infection who was discharged at postoperative 9 days after symptomatic and supportive treatment. None of the 35 patients had perioperative anastomotic leakage or bleeding. Of the 35 patients, 1 was diagnosed with esophagojejunostomy stenosis at postoperative 2 months and was improved after endoscopic dilatation. The incidence of long-term anastomosis-related complications of the 35 patients was 2.9%(1/35). (3) Postoperative pathological examination: the pathological examination of the upper margin of intraoperative frozen section and postoperative paraffin section showed negative in the 35 patients. Of the 35 patients, 16 had tumor located at cardia including 4 cases with tumor involving in lower esophagus, 19 had tumor located at stomach; 21 had tumor pathological type as highly or moderately differentiated adenocarcinoma, 11 had poorly differentiated adenocarcinoma, 3 had signed-ring cell carcinoma; 14 had early gastric cancer, 21 had advanced gastric cancer; 7 had tumor invaded at mucosa lamina propria and muscularis, 7 had tumor invaded at submucosa, 1 had tumor invaded at muscularis, 1 had tumor invaded at subserosal, 17 had tumor invaded at serosal, 2 had tumor invaded at extra-serosal adipose tissue. The TNM staging of the 35 patients: 14 were in stage ⅠA , 2 in stage ⅠB, 4 in stage ⅡB, 3 in stage ⅢA, 4 in stage ⅢB and 8 in stage ⅢC. Of the 35 patients, 15 had vascular invasion and 16 had nerve invasion. The tumor diameter, the number of lymph nodes dissected and the number of positive lymph nodes of the 35 patients were 3.9 cm(range, 0.6-12.0 cm), 24(range, 10-40) and 2(range, 0-11). (4) Follow-up and survival: all the 35 patients were followed up for 1-18 months, with a median time of 5 months. Of the 35 patients, tumor recurrence or metastasis was not found in 34 patients, and the other 1 patient was diagnosed with liver metastases of tumor at postoperative 6 months and survived with tumor.Conclusion:Hand-sewn EJA in TLTG is safe and feasible.

The Fibulin family is a kind of secreted glycoprotein,belonging to the extracellular matrix protein.A total of 7 family members are widely distributed in basement membrane,elastic fiber and loose connective tissue.The Fibulin family is widely involved in the regulation of cell morphology,growth and adhesion.When Fibulin is disturbed,it can cause a range of diseases,such as skin laxity,tooth hypoplasia and various tumors.The researches show that Fibulin-1 is expressed abnormally in fibrosarcoma,gastric cancer and liver cancer,and the expression of Fibulin-2 is down-regulated in breast cancer and up-regulated in lung cancer.The other members of the family also show abnormal expression in various tumor tissues,which indicates the members of the Fibulin family play important roles in the genesis and development of tumors.

A retrospective study was conducted on one patient with postmenopausal hyperandrogenism. The postmenopausal female patient was found with significant hyperandrogenism ( total testosterone 6. 4 nmol/ L) and hirsutism, with normal adrenal androgen ( dehydroepiandrosterone-sulfate ) level. Computed tomography and ultrasound did not detect any ovarian and adrenal mass. Positron emission tomography revealed without high metabolic region, either. Ovarian and adrenal vein catheterization did not reveal any positive result. Obviously, ovary-derived hyperandrogenism was highly suspected, but the patient still refused any surgical exploration. After a trial of a single dose of gonadotropin releasing hormone analogue(GnRHa) triptorelin, increased testosterone level returned to normal along with decreasing level of gonadotropin. Multiple doses were needed for maintenance of testosterone at normal level with the intervals of 2 ～ 12 months. This response to the treatment was consistent with that of gonadotropin dependent hyperandrogenism.