Objective:To investigate and compare the clinical outcomes of the arterial pre-occlusion technique(APOT) and the traditional technique in the surgery of locally advanced pancreatic cancer with arterial involvement after conversion therapy.Methods:This is a retrospective cohort study. The clinical data of 145 patients with locally advanced pancreatic cancer with arterial involvement admitted to the Department of Hepato-Biliary-Pancreatic Surgery of the First Hospital Affiliated to Naval Medical University,from January 2020 to December 2022 were retrospectively analyzed. All patients completed neoadjuvant therapy for tumors, and the feasibility of radical surgical treatment was determined by a multidisciplinary collaborative team evaluation before surgery. According to whether the intraoperative artery was pre-occluded, 145 patients were divided into two groups, including 28 cases in the APOT group(16 males, 12 females, aged (59.0±9.4) years), and 117 cases in the routine surgery group(76 males, 41 females, aged (55.1±8.2) years). To ensure comparability of baseline data between the APOT group and the routine surgery group, a 1∶2 match was performed using the propensity score matching method, and the caliper value was 0.006 45. The t-test,the Mann-Whitney U test, χ2 test or Fisher′s exact test were used to compare the data between the two groups,respectively. Results:After matching the propensity score,there were 28 cases in the APOT group and 56 cases in the routine surgery group. There were no significant differences in gender,age,preoperative comorbidities,preoperative body mass index,surgical approaches,chemotherapy regimen,stereotactic body radiation therapy ratio,tumor markers,and type of invaded artery between the two groups (all P>0.05).The arterial occlusion time M(IQR) in the APOT group was 7.0(3.8)minutes(range:3 to 15 minutes),and no ischemic manifestations were observed in the distal target organs that blocked blood vessels after surgery. The operation time was (170.3±57.7)minutes in the APOT group and (235.0±80.2)minutes in the routine surgery group,and the difference was statistically significant ( t=-3.800, P<0.01). The APOT group also experienced less intraoperative blood loss(650(588)ml vs. 800(600)ml; U=1 026.500, P=0.021). No significant differences were found between the groups in combined vein resection and reconstruction,celiac trunk resection,early postoperative complications, readmission rates at 30 days,and postoperative length of stay(all P>0.05). Extra-arterial dissection was performed in all patients,with arterial resection and reconstruction in 3 cases: 2 cases in the APOT group(1 case involving the superior mesenteric artery and 1 case involving the common hepatic artery) and 1 case in the routine group(involving the common hepatic artery). Postoperative abdominal bleeding occurred in 4 cases,with 3 cases in the routine group,1 case in the routine group. The R0 resection rate was 85.7%(24/28) in the APOT group and 80.4%(45/56) in the routine group,without significant differences between the groups( P=0.763). The median overall survival time was 27.6 months for the APOT group and 22.5 months for the routine group,while the median disease-free survival was 11.7 months and 16.8 months,respectively,with no significant differences between the two groups( P=0.532, P=0.927). Conclusion:The arterial pre-occlusion technique can be used for extra-arterial dissection in patients with locally advanced pancreatic cancer involving the arteries,reducing surgery time and intraoperative blood loss.

Objective:To investigate and compare the clinical outcomes of the arterial pre-occlusion technique(APOT) and the traditional technique in the surgery of locally advanced pancreatic cancer with arterial involvement after conversion therapy.Methods:This is a retrospective cohort study. The clinical data of 145 patients with locally advanced pancreatic cancer with arterial involvement admitted to the Department of Hepato-Biliary-Pancreatic Surgery of the First Hospital Affiliated to Naval Medical University,from January 2020 to December 2022 were retrospectively analyzed. All patients completed neoadjuvant therapy for tumors, and the feasibility of radical surgical treatment was determined by a multidisciplinary collaborative team evaluation before surgery. According to whether the intraoperative artery was pre-occluded, 145 patients were divided into two groups, including 28 cases in the APOT group(16 males, 12 females, aged (59.0±9.4) years), and 117 cases in the routine surgery group(76 males, 41 females, aged (55.1±8.2) years). To ensure comparability of baseline data between the APOT group and the routine surgery group, a 1∶2 match was performed using the propensity score matching method, and the caliper value was 0.006 45. The t-test,the Mann-Whitney U test, χ2 test or Fisher′s exact test were used to compare the data between the two groups,respectively. Results:After matching the propensity score,there were 28 cases in the APOT group and 56 cases in the routine surgery group. There were no significant differences in gender,age,preoperative comorbidities,preoperative body mass index,surgical approaches,chemotherapy regimen,stereotactic body radiation therapy ratio,tumor markers,and type of invaded artery between the two groups (all P>0.05).The arterial occlusion time M(IQR) in the APOT group was 7.0(3.8)minutes(range:3 to 15 minutes),and no ischemic manifestations were observed in the distal target organs that blocked blood vessels after surgery. The operation time was (170.3±57.7)minutes in the APOT group and (235.0±80.2)minutes in the routine surgery group,and the difference was statistically significant ( t=-3.800, P<0.01). The APOT group also experienced less intraoperative blood loss(650(588)ml vs. 800(600)ml; U=1 026.500, P=0.021). No significant differences were found between the groups in combined vein resection and reconstruction,celiac trunk resection,early postoperative complications, readmission rates at 30 days,and postoperative length of stay(all P>0.05). Extra-arterial dissection was performed in all patients,with arterial resection and reconstruction in 3 cases: 2 cases in the APOT group(1 case involving the superior mesenteric artery and 1 case involving the common hepatic artery) and 1 case in the routine group(involving the common hepatic artery). Postoperative abdominal bleeding occurred in 4 cases,with 3 cases in the routine group,1 case in the routine group. The R0 resection rate was 85.7%(24/28) in the APOT group and 80.4%(45/56) in the routine group,without significant differences between the groups( P=0.763). The median overall survival time was 27.6 months for the APOT group and 22.5 months for the routine group,while the median disease-free survival was 11.7 months and 16.8 months,respectively,with no significant differences between the two groups( P=0.532, P=0.927). Conclusion:The arterial pre-occlusion technique can be used for extra-arterial dissection in patients with locally advanced pancreatic cancer involving the arteries,reducing surgery time and intraoperative blood loss.

Objective:To discuss the protective effect of carnosine(CAR)against oxygen-glucose deprivation/reoxygenation(OGD/R)-induced astrocyte(AS)injury,and to clarify its possible mechanism.Methods:The AS were divided into control group,model group(OGD/R group),OGD/R+CAR group(CAR group),and OGD/R+CAR+AMP-activated protein kinase(AMPK)activator AICAR group(CAR+AICAR group).MTT assay and green cyanine staining method were used to detect the survival rates and green cyanine staining positive rates of the AS in various groups;Annexin V-FITC/PI method and flow cytometry were used to detect the apoptotic rates of the AS in various groups;Western blotting method was used to detect the expression levels of AMPK,phosphorylated AMPK(p-AMPK),mammalian target of rapamycin(mTOR),phosphorylated mTOR(p-mTOR),microtubule-associated protein light chain 3B(LC3B),Beclin-1,and P62 proteins in the AS in various groups;immunofluorescence staining was used to observe the LC3B positive fluorescence intensities in the AS in various groups.Results:Compared with control group,the survival rate and green cyanine staining positive rate of the AS in OGD/R group were decreased(P＜0.01),the apoptotic rate of the AS was increased(P＜0.01),the ratios of p-AMPK/AMPK and LC3B Ⅱ/LC3B Ⅰ and the expression level of Beclin-1 protein were increased(P＜0.01),and the ratio of p-mTOR/mTOR and the expression level of P62 protein were decreased(P＜0.01).Compared with OGD/R group,the survival rate and green cyanine staining positive rate of the AS in CAR group were increased(P＜0.01),the apoptotic rate of the AS was decreased(P＜0.01),the ratios of p-AMPK/AMPK and LC3B Ⅱ/LC3B Ⅰ and the expression level of Beclin-1 protein were decreased(P＜0.01),and the ratio of p-mTOR/mTOR and the expression level of P62 protein were increased(P＜0.01).Compared with CAR group,the survival rate and green cyanine staining positive rate of the AS in CAR+AICAR group were decreased(P＜0.01),the apoptotic rate of the AS was increased(P＜0.01),the ratios of p-AMPK/AMPK and LC3B Ⅱ/LC3B Ⅰ and the expression level of Beclin-1 protein were increased(P＜0.01),and the ratio of p-mTOR/mTOR and the expression level of P62 protein were decreased(P＜0.01).The LC3B immunofluorescence staining results were consistent with the Western blotting results.Conclusion:CAR has the protective effect on injury of the AS induced by OGD/R,and its molecular mechanism may be related to the inhibition of the AMPK/mTOR signaling pathway,thereby inhibiting autophagy.

Female ; Humans ; Breast Neoplasms ; Testosterone ; Prolactin ; Estradiol ; Testosterone Congeners ; China

ObjectiveTo explore the prevalence and influencing factors of multimorbidity among the HIV-infected individuals receiving anti-viral therapy (ART) in Dehong Prefecture of Yunnan Province, so as to provide a reference for the long-term follow-up management of HIV-infected patients and the comprehensive prevention and treatment of chronic diseases. MethodsA cross-sectional study was conducted to investigate the multimorbidity burden among the HIV-infected adults receiving ART in Dehong Prefecture from January to July 2021 and a self-designed questionnaire was used to analyze relevant disease indicators. Multivariate logistic regression analysis was used to investigate the influencing factors of multimorbidity among the HIV-infected individuals. ResultsA total of 3 946 HIV-infected individuals receiving ART were enrolled in this study, of which 63.7% aged ≤50 years, with a male to female ratio of 1.1∶1. Among the 3 946 cases, 825 of them had ≥2 comorbidities, with a co-prevalence rate of 20.9% (95%CI:19.6%‒22.2%), and the main comorbidities were dyslipidemia, diabetes, and hypertension. Multivariate logistic regression analysis showed that 40≤ aged <50 years (aOR=1.86, 95%CI: 1.45‒2.40, P<0.001), 50≤ aged ≤85 years (aOR=3.75, 95%CI: 2.93‒4.80, P<0.001), Dai nationality (aOR=1.21, 95%CI: 1.01‒1.47, P=0.043), BMI≥24.0 kg∙m^-2 (aOR=1.79, 95%CI: 1.49‒2.14, P<0.001), 10.0≤ with ART duration for <12.5 years (aOR=1.49, 95%CI: 1.05‒2.12, P=0.024), with ART duration for ≥12.5 years (aOR=1.50, 95%CI: 1.05‒2.15, P=0.026), use of second-line HIV therapy (aOR=1.43, 95%CI: 1.19‒1.70, P<0.001) and other therapy options (aOR=3.16, 95%CI: 2.17‒4.61, P<0.001) were positively correlated with multimorbidity. ConclusionThe prevalence of multimorbidity among the HIV-infected individuals receiving ART in Dehong Prefecture is high, which is associated with the advancing age and prolonged treatment time, particularly with a significant burden of dyslipidemia, diabetes, and hypertension. Comprehensive surveillance and targeted management of comorbidities, along with ART follow-up, need to be strengthened in the future.

With the rapid development of industry and economy,the emergence of a large number of chemicals has made of risk management more difficult.Traditional risk assessment relies on animal experiments for toxicity testing.However,animal experiments are time-consuming,costly,and unable to meet the practical needs of risk assessment.The increasing maturity of toxicity testing alternative technologies signifies the possibility of rapid,sensitive,and accurate identification of chemical toxicity.This article focuses on the research and applications of alternative toxicity testing by reviewing the background,developments,and current research at home and abroad.It also discusses the progress in alternative testing methods in such areas as cosmetics and food safety risk assessment and explores the problems with the development of alternative testing technologies and risk assessment in China.This review aims to provide a reference for the system construction of cosmetics health risk assess-ment in China.

Objective:To understand the status quo of self-regulating fatigue (SRF) in aged patients undergoing maintenance hemodialysis (MHD) and analyze its influencing factors.Methods:This study is a cross-sectional study. From January to June 2022, 310 aged patients undergoing MHD from the blood purification centers of three ClassⅢ Grade A hospitals in Jinan, Shandong Province, were selected by convenience sampling. Various questionnaires, including the general information questionnaire, Mini-Mental State Examination (MMSE), Self-Regulatory Fatigue Scale (SRF-S), Medical Coping Modes Questionnaire (MCMQ), General Self-Efficacy Scale (GSES), and 5-Item Geriatric Depression Scale (GDS-5), were used to investigate and analyze the factors influencing self-regulation of fatigue in aged patients undergoing MHD through univariate and multiple stepwise regression analysis.Results:The SRF-S score for the aged patients undergoing MHD was (42.26±7.86). The results of the multiple factor analysis showed that family average monthly income, depression, coping style, and self-efficacy were factors influencing SRF in these patients ( P<0.05) . Conclusions:It is urgent to pay attention to the current status of self-regulation of fatigue in aged patients undergoing MHD and take effective measures to improve their self-efficacy, promote positive coping strategies, alleviate depression, and reduce their level of SRF.

In recent years,the rapid advancement of biotechnology has shifted the focus of epigenetic research towards RNA modifications,which play pivotal roles across a diverse range of physiological and pathological processes,particularly in regulating the immune system.As a highly complex and precise regulatory network,the immune system involves the synergistic action of multiple im-mune cells to maintain the immune homeostasis.RNA epigenetic modification plays a crucial role in modulating the development and function of immune cells by influencing different metabolic processes of RNA.This review aims to provide a comprehensive overview of the functions and corresponding regulatory mechanisms of six RNA modifications:m6A,m1A,m5C,m7G,ac4C,and A-to-I editing in immune cells,and further explore their potential roles in complex diseases such as autoimmune diseases and tumors,in order to pro-vide new ideas and strategies for the prevention and treatment of immune-related diseases.

Dermatofibrosarcoma protuberans ( DFSP ) is very rare in clinic, and its diagnosis is not specific. According to the literature domestic and abroad, only 18 cases of patients during gestation period suffered from DFSP have been reported. This paper reported a case from the Department of Plastic Surgery, the First Affiliated Hospital of Bengbu Medical College in April 2022 diagnosed with DFSP during pregnancy.The DFSP showed rapid growth and pain during pregnancy, and stopped rapid growth after delivery. Extensive local resection was performed and the incision margin exceeded 3 cm diameter of the tumor. One-stage skin graft was used to repair the defect. HE staining showed a single spindle cell, arranged in a vortex, with large and dark nuclei. Some nuclei were heteromorphic, and few mitotic figures were observed. Postoperative pathology showed negative margins and basement. Immunohistochemistry showed CD34 (+ + ), Ki-67 (+, 10% ), bcl-2 (-), s-100 (-), SMA (-), CD163 (-), CD68 (-), which were consistent with the diagnosis of DFSP. The pathogenesis of DFSP is not yet clear. As a special population, patients during gestation period need special treatment and diagnosis. Through literature review, this paper summarizes the reports domestic and abroad, and discusses the diagnosis, treatment and prognosis of patients with DFSP during pregnancy.