Objective:To explore the clinicopathologic features of early-onset pancreatic cancer (EOPC) and its correlation with dyslipidemia and prognostic analysis.Methods:This is a retrospective cohort study. Clinical and pathological data of 455 patients with pancreatic cancer who underwent radical surgery from January 2013 to September 2020 in the Department of Pancreatic Surgery, Qilu Hospital, Shandong University were retrospectively collected. According to the onset age≤50 years, the patients were divided into EOPC group(67 cases) and later-onset pancreatic cancer (LOPC) group(388 cases). There were 48 males and 19 females in the EOPC group, aged (44.4±5.7) years(range: 28.0 to 50.0 years); and 230 males and 158 females in the LOPC group, aged (63.0±7.2)years (range: 51.0 to 86.0 years). EOPC was divided into two groups according to the blood lipid status: dyslipidemia (50 cases) and normal (17 cases). General information, blood lipid data, clinicopathological parameters and follow-up information were collected. χ2 test, Mann-Whitney U test and Logistic regression analysis were used to evaluate the difference or correlation between groups, and Cox regression analysis and Kaplan-Meier survival curve were used to analyze the impact of EOPC and dyslipidemia on the prognosis. Propensity score matching was used to match two groups of patients in a 1∶1 ratio using nearest neighbor matching, with a caliper set at 0.05. Results:Compared with LOPC group, EOPC group with a higher proportion of patients with body mass index ≥24 kg/m 2 (55.8%(24/43) vs. 38.7%(113/292), χ2=4.542 ,P=0.033), dyslipidemia(74.6%(50/67) vs. 57.7%(224/388), χ2=6.808, P=0.009), pancreatic head cancer (73.1% (49/67) vs. 60.0%(231/385), χ2=4.176, P=0.041) and a lower proportion of patients with type 2 diabetes (9.0%(6/67) vs. 24.2%(94/388), χ2=7.771, P=0.005) and hypertension (9.0%(6/67) vs. 33.0%(128/388), χ2=15.885, P<0.01). Compared the proportion of dyslipidemia in the two groups,there was a higher proportion of high density lipoprotein cholesterol(HDL-C) abnormality in the EOPC group (65.7%(44/67) vs. 42.8%(166/388), χ2=12.044, P<0.01), whereas there was no significant difference in other lipid indices. Kaplan-Meier survival curve analysis of dyslipidemia did not have a significant effect on the prognosis of EOPC patients ( P=0.430). The results of further Logistic regression analysis showed that gender( OR=6.445 (95% CI: 1.692 to 24.548), P=0.006) and tumor location ( OR=5.352 (95% CI: 1.374 to 20.846), P=0.016) were independent related factors with serum lipid level in patients with EOPC. Conclusions:Compared with LOPC, EOPC is more likely to be combined with obesity and HDL-C abnormalities, and the proportion of pancreatic head cancer is also higher, but there is no significant difference in prognosis between the two groups. In the EOPC patients, serum lipid level is associated with gender and tumor site, but has no effect on survival.

The overall incidence of lymphomas associated with HIV infection is low, and only few hematological oncology specialties provide standardized treatment. Newly diagnosed patients with impaired immune function have a high incidence of complications, such as infections during induction chemotherapy, which increases treatment difficulties. For patients with relapse/refractory status, salvage treatment options are extremely limited, because new drug clinical trials are lacking. At present, both domestic and international clinical practices have shown that patients with lymphomas associated with HIV infection can achieve long-term survival after standardized combination antiretroviral therapy (cART) with targeted immunochemotherapy, followed by autologous hematopoietic stem cell transplantation (auto-HSCT) immediately after achieving complete remission. In recent years, some new drugs, such as XPO1 inhibitors, immune checkpoint inhibitors, antibody-drug conjugates (ADC drugs), bispecific antibodies, and small-molecule drugs, have been tentatively incorporated into treatment regimens for patients with lymphomas associated with HIV infection, and preliminary clinical data have been obtained. Based on two patients with lymphomas associated with HIV infection who were admitted to our center, this study proposed a standardized diagnostic and treatment pathway and provided corresponding references for clinicians to apply new drugs. The aim of this study was to promote diagnostic and treatment capabilities and improve the survival and quality of life of patients of lymphomas associated with HIV infection in China.

Acute lung injury (ALI) has been a kind of acute and severe disease that is mainly characterized by systemic uncontrolled inflammatory response to the production of huge amounts of reactive oxygen species (ROS) in the lung tissue. Given the critical role of ROS in ALI, a Fe₃O₄ loaded bovine serum albumin (BSA) nanocluster (BF) was developed to act as a nanomedicine for the treatment of ALI. Combining with NIR irradiation, it exhibited excellent ROS scavenging capacity. Significantly, it also displayed the excellent antioxidant and anti-inflammatory functions for lipopolysaccharides (LPS) induced macrophages (RAW264.7), and Sprague Dawley rats via lowering intracellular ROS levels, reducing inflammatory factors expression levels, inducing macrophage M2 polarization, inhibiting NF-κB signaling pathway, increasing CD4⁺/CD8⁺ T cell ratios, as well as upregulating HSP70 and CD31 expression levels to reprogram redox homeostasis, reduce systemic inflammation, activate immunoregulation, and accelerate lung tissue repair, finally achieving the synergistic enhancement of ALI immunotherapy. It finally provides an effective therapeutic strategy of BF + NIR for the management of inflammation related diseases.

The overall incidence of lymphomas associated with HIV infection is low, and only few hematological oncology specialties provide standardized treatment. Newly diagnosed patients with impaired immune function have a high incidence of complications, such as infections during induction chemotherapy, which increases treatment difficulties. For patients with relapse/refractory status, salvage treatment options are extremely limited, because new drug clinical trials are lacking. At present, both domestic and international clinical practices have shown that patients with lymphomas associated with HIV infection can achieve long-term survival after standardized combination antiretroviral therapy (cART) with targeted immunochemotherapy, followed by autologous hematopoietic stem cell transplantation (auto-HSCT) immediately after achieving complete remission. In recent years, some new drugs, such as XPO1 inhibitors, immune checkpoint inhibitors, antibody-drug conjugates (ADC drugs), bispecific antibodies, and small-molecule drugs, have been tentatively incorporated into treatment regimens for patients with lymphomas associated with HIV infection, and preliminary clinical data have been obtained. Based on two patients with lymphomas associated with HIV infection who were admitted to our center, this study proposed a standardized diagnostic and treatment pathway and provided corresponding references for clinicians to apply new drugs. The aim of this study was to promote diagnostic and treatment capabilities and improve the survival and quality of life of patients of lymphomas associated with HIV infection in China.

Objective:To explore the clinicopathologic features of early-onset pancreatic cancer (EOPC) and its correlation with dyslipidemia and prognostic analysis.Methods:This is a retrospective cohort study. Clinical and pathological data of 455 patients with pancreatic cancer who underwent radical surgery from January 2013 to September 2020 in the Department of Pancreatic Surgery, Qilu Hospital, Shandong University were retrospectively collected. According to the onset age≤50 years, the patients were divided into EOPC group(67 cases) and later-onset pancreatic cancer (LOPC) group(388 cases). There were 48 males and 19 females in the EOPC group, aged (44.4±5.7) years(range: 28.0 to 50.0 years); and 230 males and 158 females in the LOPC group, aged (63.0±7.2)years (range: 51.0 to 86.0 years). EOPC was divided into two groups according to the blood lipid status: dyslipidemia (50 cases) and normal (17 cases). General information, blood lipid data, clinicopathological parameters and follow-up information were collected. χ2 test, Mann-Whitney U test and Logistic regression analysis were used to evaluate the difference or correlation between groups, and Cox regression analysis and Kaplan-Meier survival curve were used to analyze the impact of EOPC and dyslipidemia on the prognosis. Propensity score matching was used to match two groups of patients in a 1∶1 ratio using nearest neighbor matching, with a caliper set at 0.05. Results:Compared with LOPC group, EOPC group with a higher proportion of patients with body mass index ≥24 kg/m 2 (55.8%(24/43) vs. 38.7%(113/292), χ2=4.542 ,P=0.033), dyslipidemia(74.6%(50/67) vs. 57.7%(224/388), χ2=6.808, P=0.009), pancreatic head cancer (73.1% (49/67) vs. 60.0%(231/385), χ2=4.176, P=0.041) and a lower proportion of patients with type 2 diabetes (9.0%(6/67) vs. 24.2%(94/388), χ2=7.771, P=0.005) and hypertension (9.0%(6/67) vs. 33.0%(128/388), χ2=15.885, P<0.01). Compared the proportion of dyslipidemia in the two groups,there was a higher proportion of high density lipoprotein cholesterol(HDL-C) abnormality in the EOPC group (65.7%(44/67) vs. 42.8%(166/388), χ2=12.044, P<0.01), whereas there was no significant difference in other lipid indices. Kaplan-Meier survival curve analysis of dyslipidemia did not have a significant effect on the prognosis of EOPC patients ( P=0.430). The results of further Logistic regression analysis showed that gender( OR=6.445 (95% CI: 1.692 to 24.548), P=0.006) and tumor location ( OR=5.352 (95% CI: 1.374 to 20.846), P=0.016) were independent related factors with serum lipid level in patients with EOPC. Conclusions:Compared with LOPC, EOPC is more likely to be combined with obesity and HDL-C abnormalities, and the proportion of pancreatic head cancer is also higher, but there is no significant difference in prognosis between the two groups. In the EOPC patients, serum lipid level is associated with gender and tumor site, but has no effect on survival.

Objective:To develop a prognostic prediction model for patients with colorectal cancer based on a peripheral blood cell composite score (PBCS) system.Methods:This retrospective observational study included patients who had primary colorectal cancer without distant metastasis, who did not undergo radiotherapy or chemotherapy before surgery, who did not receive leukocyte or platelet-raising therapy within 1 month before surgery, and whose postoperative pathology confirmed colorectal adenocarcinoma with complete tumor resection. Patients with severe anemia, infection, or hematologic diseases before surgery, as well as those with severe heart, lung, or other important organ diseases or concurrent malignant tumors, were excluded. In total, 1021 patients with colorectal cancer who underwent surgical treatment in the Department of Gastrointestinal Surgery of the Fourth Hospital of Hebei Medical University from April 2018 to April 2020 were retrospectively included as the training set (766 patients) and the internal validation set (255 patients). Additionally, using the same criteria, 215 patients with colorectal cancer who underwent surgical treatment in another treatment group from March 2015 to December 2020 were selected as the external validation set. The "surv_cutpoint" function in R software was used to analyze the optimal cut-off values of neutrophils, lymphocytes, and platelets, and a PBCS system was established based on the optimal cut-off values. The scoring rules of the PBCS system were as follows: Neutrophils and platelets below the optimal cut-off value = 1 point, otherwise 0 points; Lymphocytes above the optimal cut-off value = 1 point, otherwise 0 points. The scores of the three cell types were added together to obtain the PBCS. Univariate and multivariate Cox regression analyses were performed to explore the correlation between patients' clinicopathological features and prognosis, and a nomogram was constructed based on the Cox regression analysis to predict patients' prognosis. The accuracy of the nomogram prediction model was validated using the C-index, calibration curve, and decision curve analysis.Results:The optimal cut-off values for neutrophils, lymphocytes, and platelets were 4.40×10 9/L, 1.41×10 9/L, and 355×10 9/L, respectively. The patients were divided into high and low groups according to the optimal cut-off values of these cells. Survival curve analysis showed that a high lymphocyte count (training set: P=0.042, internal validation: P=0.010, external validation: P=0.029), low neutrophil count (training set: P=0.035, internal validation: P=0.001, external validation: P=0.024), and low platelet count (training set: P=0.041, internal validation: P=0.030, external validation: P=0.024) were associated with prolonged overall survival (OS), with statistically significant differences in all cases. Survival analysis of different PBCS groups showed that patients with a high PBCS had longer OS than those with a low PBCS ( P<0.05). Univariate and multivariate Cox regression analysis results showed that aspirin use history, vascular thrombus, neural invasion, CA19-9, N stage, operation time, M stage, and PBCS were independent factors affecting OS (all P<0.05). The PBCS was also an independent factor affecting disease-specific survival ( P<0.05), but not progression-free survival ( P>0.05). The above independent risk or protective factors were included in R software to construct a nomogram for predicting OS. The C-index (0.873), calibration curve, and decision curve analysis (threshold probability: 0.0%–75.2%) all indicated that the nomogram prediction model had good predictive performance for OS. Conclusion:This study demonstrates that the PBCS constructed based on preoperative peripheral blood levels of neutrophils, lymphocytes, and platelets is an independent factor associated with the prognosis of patients with colorectal cancer. The nomogram model constructed based on this score system exhibits good predictive efficacy for the prognosis of these patients.

Objective:To develop a prognostic prediction model for patients with colorectal cancer based on a peripheral blood cell composite score (PBCS) system.Methods:This retrospective observational study included patients who had primary colorectal cancer without distant metastasis, who did not undergo radiotherapy or chemotherapy before surgery, who did not receive leukocyte or platelet-raising therapy within 1 month before surgery, and whose postoperative pathology confirmed colorectal adenocarcinoma with complete tumor resection. Patients with severe anemia, infection, or hematologic diseases before surgery, as well as those with severe heart, lung, or other important organ diseases or concurrent malignant tumors, were excluded. In total, 1021 patients with colorectal cancer who underwent surgical treatment in the Department of Gastrointestinal Surgery of the Fourth Hospital of Hebei Medical University from April 2018 to April 2020 were retrospectively included as the training set (766 patients) and the internal validation set (255 patients). Additionally, using the same criteria, 215 patients with colorectal cancer who underwent surgical treatment in another treatment group from March 2015 to December 2020 were selected as the external validation set. The "surv_cutpoint" function in R software was used to analyze the optimal cut-off values of neutrophils, lymphocytes, and platelets, and a PBCS system was established based on the optimal cut-off values. The scoring rules of the PBCS system were as follows: Neutrophils and platelets below the optimal cut-off value = 1 point, otherwise 0 points; Lymphocytes above the optimal cut-off value = 1 point, otherwise 0 points. The scores of the three cell types were added together to obtain the PBCS. Univariate and multivariate Cox regression analyses were performed to explore the correlation between patients' clinicopathological features and prognosis, and a nomogram was constructed based on the Cox regression analysis to predict patients' prognosis. The accuracy of the nomogram prediction model was validated using the C-index, calibration curve, and decision curve analysis.Results:The optimal cut-off values for neutrophils, lymphocytes, and platelets were 4.40×10 9/L, 1.41×10 9/L, and 355×10 9/L, respectively. The patients were divided into high and low groups according to the optimal cut-off values of these cells. Survival curve analysis showed that a high lymphocyte count (training set: P=0.042, internal validation: P=0.010, external validation: P=0.029), low neutrophil count (training set: P=0.035, internal validation: P=0.001, external validation: P=0.024), and low platelet count (training set: P=0.041, internal validation: P=0.030, external validation: P=0.024) were associated with prolonged overall survival (OS), with statistically significant differences in all cases. Survival analysis of different PBCS groups showed that patients with a high PBCS had longer OS than those with a low PBCS ( P<0.05). Univariate and multivariate Cox regression analysis results showed that aspirin use history, vascular thrombus, neural invasion, CA19-9, N stage, operation time, M stage, and PBCS were independent factors affecting OS (all P<0.05). The PBCS was also an independent factor affecting disease-specific survival ( P<0.05), but not progression-free survival ( P>0.05). The above independent risk or protective factors were included in R software to construct a nomogram for predicting OS. The C-index (0.873), calibration curve, and decision curve analysis (threshold probability: 0.0%–75.2%) all indicated that the nomogram prediction model had good predictive performance for OS. Conclusion:This study demonstrates that the PBCS constructed based on preoperative peripheral blood levels of neutrophils, lymphocytes, and platelets is an independent factor associated with the prognosis of patients with colorectal cancer. The nomogram model constructed based on this score system exhibits good predictive efficacy for the prognosis of these patients.

Objective:To investigate the clinical characteristics, therapeutic efficacy and prognosis of patients with human immunodeficiency virus (HIV)-associated Hodgkin lymphoma.Methods:A retrospective case series study was conducted. The clinical data of 22 HIV-associated Hodgkin lymphoma patients in Chongqing University Cancer Hospital from December 2013 to June 2022 were retrospectively analyzed. Their clinical features, laboratory results, treatment, and prognosis were analyzed. Kaplan-Meier method was used to perform survival analysis.Results:The age [ M ( Q1, Q3)] of 22 patients was 44 years old (36 years old, 53 years old); 18 cases were male, 4 cases were female; clinical staging was stage Ⅲ in 5 patients and stage Ⅱ in 17 patients. All 22 patients were infected with HIV through sexual transmission, with 10 cases transmitted through man sex with man and 12 cases transmitted through heterosexual transmission. Nine patients were found to be infected with HIV at the time of diagnosis of lymphoma, and 13 patients presented with lymphoma at 22.2 months (12.3 months, 38.4 months) after diagnosis of HIV infection. Of the 22 patients, 3 abandoned treatment; 19 patients were treated with antiretroviral therapy combined with ABVD regimen chemotherapy, 9 patients had complete remission, and 10 patients had partial remission. After follow-up of 46.8 months (24.8 months, 64.5 months), the 5-year progression-free survival rate was 83.9%, and the 5-year overall survival rate was 89.5%. Conclusions:HIV-associated Hodgkin lymphoma exhibits an invasive process in clinical practice, and standardized antiretroviral therapy combined with ABVD regimen chemotherapy can lead to long-term survival for patients.

Objective:To asscentain the 131I activity concentration in 131I treatment workplaces and to explore the method of estimating the internal dose to workers by air sampling and to analyze its influencing factors. Methods:Air sampling method was used to collect aerosols containing radioactivity in 10 randomly selected workplaces in Zhengzhou where 131I therapy was performed. Aactivity concentration of 131I in treatment workplace was measured for gamma emitters by gamma-ray spectrometry. The internal dose due to 131I inhalation was estimated based on measurement result and field investigation result. Results:The activity concentration of 131I in air samples from 19 subpacking rooms ranged from 0.087 to 570 Bq/m 3, with an average of (51.04 ± 128.58) Bq/m 3. Those from 11 wards ranged from 0.162 to 54.6 Bq/m 3, with an average of (7.97 ± 15.89) Bq/m 3. In terms of the work hours recommended by the national standard GBZ 129-2016 Specifications for individual monitoring of occupational internal exposure, the estimated annual effective dose to radiation workers due to the inhalation of 131I ranges from 0.002 to 10 mSv, with an average of (0.61 ± 1.80) mSv, below the dose limit specified in the national standards. Conclusions:The samples with high 131I activity concentration in nuclear medicine workplaces of 10 medical institutions selected in Zhengzhou are mostly distributed in tertiary class hospitals operating large amount of radionuclide with large numbers of thyroid cancer patients adimitted. The result ing internal dose to radiation workers cannot be ignored. Estimating the internal dose based on the measurement result of air samples has a large uncertainty.However, air sampling method can promptly detect radioactive contamination in case of abnormal events or accidents, providing early warning for workers to carry out dose measurement from external exposure and internal exposure assessment.

OBJECTIVE: To explore the feasibility and early effectiveness of computer-simulated osteotomy based on the health-side combined with guide plate technique in the treatment of cubitus varus deformity in adolescents. METHODS: The clinical data of 23 patients with cubitus varus deformity who met the selection criteria between June 2019 and February 2023 were retrospectively analyzed. There were 17 males and 6 females, ranging in age from 4 to 16 years with an average of 8.5 years. The time from injury to operation was 1-4 years. The angle of distal humerus rotation was defined by humeral head posterior inclination angle using low radiation dose CT to scan the patient's upper extremity data at one time, and the preoperative rotation of the distal humerus on the affected side was (33.82±4.39)°. The CT plain scan data were imported into 9yuan3D digital orthopaedic system (V3.34 software) to reconstruct three-dimensional images of both upper extremities. The simulated operation was performed with the healthy upper extremity as the reference, the best osteotomy scheme was planned, overlapped and compared, and the osteotomy guide plate was prepared. The patients were followed up regularly after operation, and the formation of callus in the osteotomy area was observed by X-ray examination. Before and after operation, the carrying angle of both upper extremities (the angle of cubitus valgus was positive, and the angle of cubitus varus was negative) and anteversion angle were measured on X-ray and CT images. At the same time, the flexion and extension range of motion of elbow joint and the external rotation range of motion of upper extremity were measured, and Mayo score was used to evaluate the function of elbow joint. RESULTS: The operation time ranged from 34 to 46 minutes, with an average of 39 minutes. All patients were followed up 5-26 months, with a mean of 14.9 months. All the incisions healed by first intention after the operation; 2 patients had nail path irritation symptoms after Kirschner wire fixation, which improved after dressing change; no complication such as breakage and loosening of internal fixators occurred after regular X-ray review. Continuous callus formed at the osteotomy end at 4 weeks after operation, and the osteotomy end healed at 8-12 weeks after operation. At last follow-up, the carrying angle, anteversion angle, external rotation range of motion, and extension and flexion range of motion of the elbow joint of the affected side significantly improved when compared with preoperative ones ( P<0.05). Except for the extension range of motion of the healthy elbow joint ( P<0.05), there was no significant difference in other indicators between the two sides ( P>0.05). At last follow-up, the Mayo elbow score was 85-100, with an average of 99.3; 22 cases were excellent, 1 case was good, and the excellent and good rate was 100%. CONCLUSION Computer-simulated osteotomy based on health-side combined with guide plate technique for treating cubitus varus deformity in adolescents can achieve precise osteotomy, which has the advantages of short operation time and easy operation, and the short-term effectiveness is satisfactory.
Male ; Female ; Humans ; Adolescent ; Child, Preschool ; Child ; Elbow ; Humeral Fractures/surgery* ; Retrospective Studies ; Joint Deformities, Acquired/surgery* ; Elbow Joint/surgery* ; Limb Deformities, Congenital ; Osteotomy/methods* ; Humeral Head ; Range of Motion, Articular ; Computers ; Treatment Outcome