Objective To understand the residual levels of eugenol in aquatic products sold in 4 cities in Hubei Province and timely discover potential food safety hazards, and to provide a scientific basis for supervision of eugenol in aquaculture and transportation of aquatic products. Methods From 2021 to 2023, 124 samples of aquatic products were randomly collected from supermarkets and farmers’ markets in Yichang, Xiantao, Jingmen, and Ezhou cities in Hubei Province. The ultra-high performance liquid chromatography-mass spectrometry was used to detect the residues of eugenol. Results Eugenol was detected in 51 out of 124 samples, with a detection rate of 41.13%，and a concentration range of N.D. - 2601μg/kg. Among them, 19 out of 40 samples were detected in 2021, with a detection rate of 47.50%; 12 out of 40 samples were detected in 2022, with a detection rate of 30.00%; and 20 out of 44 samples were detected in 2023, with a detection rate of 45.45%. There was no statistically significant difference in the detection rates in different years (P>0.05). The detection rates of eugenol in aquatic products sold in Yichang City, Xiantao City, Jingmen City, and Ezhou City were 22.58%, 35.48%, 41.94%, and 64.52%, respectively, and the differences were statistically significant (P<0.05). The detection rates of samples in supermarkets and farmers' markets were 35.56% and 44.30%, respectively, and the difference was not statistically significant (P>0.05). The detection rate of eugenol in bighead carp was the highest at 66.67%, followed by grass carp with a detection rate of 61.22%, which was significantly higher than other fish (P<0.05). Conclusion At present, the widespread use and arbitrary addition of eugenol should be paid attention to by relevant departments.

Objective:To investigate the clinical characteristics and prognosis of Philadelphia (Ph) chromosome-positive chronic myeloid leukemia (CML) patients with additional chromosomal abnormalities.Methods:The data of 351 CML patients with Ph-positive in the Affiliated Hospital of Qingdao University from January 2009 to January 2019 were retrospectively analyzed. The bone marrow chromosomal karyotype analysis of all patients was performed by using R-banding technique. The clinical characteristics and karyotype of Ph-positive CML patients with additional chromosomal abnormalities at initial diagnosis were summarized, and Kaplan-Meier was used to analyze the differences in overall survival (OS) of patients with different karyotypes.Results:Among 351 patients with Ph-positive CML, 32 (9.1%) cases had variant translocation. At initial diagnosis, 47 cases had additional chromosomal abnormalities including 29 cases in chronic phase accounting for 9.15% (29/317) of all patients in chronic phase, 3 cases in accelerated phase accounting for 25.00% (3/12) of all patients in accelerated phase, 15 cases in blast crisis accounting for 68.18% (15/22) of all patients in blast crisis; there was a statistically significant difference in the chromosomal abnormalities rate of all different phases ( χ2=50.799, P<0.05). Among 47 Ph-positive CML patients with additional chromosomal abnormalities, 13 patients had complex karyotypes with more than 3 additional chromosomal abnormalities, the proportion of complex karyotypes in chronic phase, accelerated phase and blast crisis was 13.79% (4/29), 33.33% (1/3) and 53.33% (8/15), respectively, and the difference was statistically significant ( χ2=9.26, P<0.05). The study showed that the most common additional chromosomal abnormalities in chronic phase were double Ph (48.28%, 14/29) and -Y (10.34%, 3/29), while the most common chromosomal abnormalities in the blast crisis were +8 (26.67%, 4/15) and double Ph (26.67%, 4/15). Kaplan-Meier survival analysis showed that at initial diagnosis the OS time of patients with additional chromosomal abnormalities was worse than that of those with the non-additional chromosomal abnormalities group ( χ2 = 61.138, P<0.05). The OS of patients with complex karyotypes for Ph - positive CML patients with additional chromosomal abnormalities at initial diagnosis was worse than that of patients with non-complex karyotypes, and the difference was significant ( χ2 = 4.945, P < 0.05). Conclusions:The additional chromosomal abnormalities is closely related to the progression of CML, and the prognosis of CML patients with additional chromosomal abnormalities is poorer than that of patients with only Ph translocation. Moreover, the more complex the additional chromosomes are, the more likely blastic changes are, and the poorer prognosis. And additional chromosomeal abnormalities during the treatment of CML patients may also lead to the progression of blastic changes.

Objective:To investigate the biomechanical characteristics and clinical outcomes of arthroscopic superior capsular reconstruction for massive irreparable rotator cuff tears (MIRCT) using the long head of biceps tendon (LHBT) with tenotomizing its distally or not (the "Chinese way" ).Methods:Eight fresh-frozen cadaveric shoulders were used to create a MIRCT model by detaching the footprints of the supraspinatus and infraspinatus tendons on the greater tuberosity. LHBT autograft was transferred and securely fixed onto the footprint of supraspinatus tendon for superior capsular reconstruction. Further, all cadaveric specimens were assigned to the tenotomy group or reservation group (4 cadaveric specimens in each group) according to whether the distal part of LHBT was tentomized or not. Biomechanical tests were conducted to observe the stiffness, ultimate load of fixed LHBT and to measure the length between LHBT tear site and its insertion on the superior labrum. A total of 41 patients with MIRCT who underwent arthroscopic superior capsular reconstruction using LHBT autograft between July 2016 and December 2018 were enrolled in the study. There were 17 males and 24 females, aged from 46 to 76 years (62.6±7.3 years). All patients were assigned to the tenotomy group (23 cases) or reservation group (18 cases) according to whether the distal part of LHBT was tentomized or not. The visual analogue scale (VAS), University of California, Los Angeles (UCLA) score, American Shoulder and Elbow Surgeons (ASES) score, Constant-Murley score and Fudan University Shoulder Score (FUSS) were used to evaluate the clinical outcomes. The range of motion (ROM) of shoulder was recorded before and after operation. Magnetic resonance imaging was used to assess the structural integrity of reconstructed tissue at 12 months after operation (refers to the failure of the transposed LHBT, which may be accompanied by a retear of partial repaired supraspinatus tendon).Results:Biomechanical research showed that the stiffness, ultimate load of fixed LHBT and the length between LHBT tear site and its insertion on the superior labrum in the reservation group (54.0±6.6 N/mm, 141.8±15.9 N, 93.3±12.4 mm, respectively) were significantly higher than those in the tenotomy group (25.7±4.2 N/mm, 80.8±8.0 N, 47.4±2.0 mm, respectively) ( P<0.05). All patients were followed up for 12-18 months (14.5±1.8 months) without significant complications and adverse reactions. No matter the distal part of LHBT was tentomized or not, the ROM and clinical scores (VAS score, UCLA score, Constant-Murley score, ASES score and FUSS) of patients improved significantly at 1 year follow-up than that before operation ( P<0.05). However, there were no significant differences between the reservation group and tenotomy group in terms of postoperative ROM [flexion, abduction, external rotation at side, internal rotation (vertebral level) were 144.3°±15.5° vs. 148.0°±10.3°, 145.1°±14.1° vs. 142.3°±11.2°, 67.3°±14.4° vs. 62.7°±11.7°, 8.3±2.1 vs. 7.8±2.5, respectively], VAS scores (2.3±1.6 vs.1.5±1.2), functional scores (Constant-Murley score, UCLA score, ASES score and FUSS were 88.2±11.4 vs. 85.6±9.6, 29.3±2.8 vs. 31.4±3.5, 86.8±11.8 vs. 82.6±9.2, 92.1±10.1 vs. 88.3±8.2, respectively) and structural failures (35.2% vs. 30.0%, P>0.05). Conclusion:Arthroscopic superior capsular reconstruction using LHBT with reserving its distal part could achieve higher mechanics strength. However, the short-term follow-up showed that tenotomizing the distal part of LHBT exerted no obvious influence on postoperative function and structural integrity.

Objective To analyze the literatures about artificial intelligence in cancer research in Web of Science (WOS) core collection database in 2010-2019 and summarize research hot spots and development trends. Methods Through bibliometrics methods and CiteSpace information visualization software, we applied the visual analysis of relevant literature on artificial intelligence in the field of cancer research retrieved from the Web of Science core collection database from 2010 to 2019. Results The number of published articles about artificial intelligence in the field of cancer research had been increasing year by year. The United States ranked first in the number of published articles in this field, the number of citations and cooperation capabilities. Although the number of published articles in China ranked the second, the number of citations was low. The hot spots of artificial intelligence in cancer research were mainly breast cancer and lung cancer. Machine learning, neural network and other methods were used to build models, which were used in basic cancer research, clinical diagnosis, treatment and prognosis prediction. The research frontiers were the methodological research of artificial intelligence, the research on the occurrence and classification of cancer and the research of protein in this field. Conclusion It will effectively promote the development of artificial intelligence in cancer research in China by learning the hot spots and cutting-edge technologies of international research, focusing on international cooperation and cooperation among national institutions and strengthening cross-disciplinary research.

COVID-19 has spread all over the world since December 2019. Although normal work and production have resumed after the epidemic has been preliminarily controlled in China, the situation of prevention and control of the re-spread of COVID-19 in China is still severe and medical institutions are still facing a great pressure in a certain period of future because part of the patients may become re-positive after healing and input cases from abroad are increasing.Based on the 2016 edition of Technical Operating Norms for Cleaning and Disinfection and Sterilization in Hospital Central Sterile Supply Department, the 2012 edition of Technical Standards for Disinfection in Medical Institutions, Prevention and Control Protocols of 2019-nCoV(5 th edition) and Diagnosis and Treatment Protocols of 2019-nCoV (6th trial version), The Central Sterile Supply Department at The Third Hospital of Hebei Medical University has worked out Recycling Procedures for Medical Instruments After 2019-nCoV Infection, Collection Procedures for Medical Instruments After 2019-nCoV Infection, and Vehicle Transport Procedures for Medical Instruments After 2019-nCoV Infection.These contingency plans may be useful references for other Central Sterile Supply Department(CSSD) during the COVID-19 epidemic.

Objective:To prepare a dual targeting nanobubble both for HER2 target and cancer cell target, and compare the targeting ability with single targeting nanobubble either with HER2 targeting or cancer cell targeting ability in vitro.Methods:Nanobubbles(NBs) were prepared using the modified thin film hydration method and then connected with IR783 directly (NBs-IR783), HER2 antibody Affibody by avidin-biotin method (NBs-Affibody), or both of them (IR783-NBs-Affibody). The size distribution, stability, and biosafety of these contrast agents were observed. Flow cytometry and immunofluorescence were applied to compare the binding rate of these NBs against HER2 positive breast cancer cell in vitro.Results:The average size of NBs-Affibody, NBs-IR783 and IR783-NBs-Affibody was (538.4±95.8)nm, (551.8±114.8)nm, and (482.7±54.3)nm, respectively. The binding rate for HER2 positive cell was 26.6%, 97.6%, 84.5%, while for HER2 negative cell was 5.4%, 99.9% and 99.3%, respectively. The results of dual-labeled flow cytometry showed that the binding rate of IR783-NBs-Affibody mediated by IR783 to HER2 positive breast cancer cells were 79.5% and Affibody mediated HER2 targeting binding rate were 19.4%. However, NBs-IR783 only showed IR783-mediated tumor targeted binding without HER2 targeting ability with binding rate of 2.3%.Conclusions:The prepared IR783-NBs-Affibody has the dual targeting ability for HER2 positive breast cancer cell, which is superior to the single targeting NBs (NBs-Affibody and NBs-IR783). IR783-NBs-Affibody is optimal to meet the imaging requirements of tumor heterogeneity.

Objective: To synthesize a folic acid (FA)-modified pH-sensitive nanomicelle containing sorafenib (SF) and superparamagnetic iron oxide (SPIO), and to access its visibility in MRI and anti-cancer efficacy on hepatocellular carcinoma (HCC) in vitro. Methods: The copolymer FA-PEG-Pasp (DBA/DIP) of FA, poly(ethylene glycol), N,N-dibutylethylenediamine and N,N-diisopropylethylenediamine grafted poly (L-aspartic acid) were prepared. SF and SPIO were encapsulated inside the copolymer to synthesize the targeting micelle FA-PEG-PAsp (DBA/DIP)-SPIO/SF (FPASS). The folate-free micelle[PEG-PAsp (DBA/DIP)-SPIO/SF (PASS)] was used as nontargeting micelle. The physicochemical properties and drug release behavior of the micelles were analyzed. MRI of HepG2 cells incubated with FPASS and PASS with different Fe concentrations and Prussian blue staining of cells treated with the micelles (Fe concentration of 20 μg/ml) was performed to assess the drug delivery capability and imaging function of the micelles. For the FA competitive inhibition assay in these experiments, HepG2 cells were pre-treated with an excess amount of free FA prior to the incubation with FPASS. Cell viability, cell apoptosis, cell cycle and tube formation assays were conducted for evaluating the anti-HCC effects of the micelles. Comparison between groups was analyzed by one-way ANOVA, and multiple comparisons correction was performed by LSD test. Results: The diameters of FPASS and PASS were (102.3±5.2) nm and (107.1±5.7) nm, respectively; the δ potentials of them were (29.7±1.6) mV and (31.5±1.4) mV, respectively. The T₂ relaxivity of both the micelles was (5.2±0.4) ml·μg^-1·s^-1, which was much higher than that of water soluble Fe₃O₄ nanoparticles [(2.3±0.1) ml·μg^-1·s^-1; F=76.45, P<0.01]. SF released from the micelles was much faster at pH5.0 than at pH7.4, which indicated that the micelles had a pH-triggered drug release behavior. MRI of HepG2 cell samples revealed the signal intensity on T₂WI images and the T₂ value on T₂-map images decreased with the increasing Fe concentrations in the micelles. At the same Fe concentration (5, 10, 20 and 40 μg/ml), the cells of FPASS group exhibited a more significant decrease in T₂ signal intensity and T₂ value compared with those of PASS group or FA competitive inhibition group (F=8.69, 14.03, 27.27, 32.25 and 19.80, 45.76, 113.20, 66.80; P<0.01). Prussian blue staining verified the existing of SPIO in the cytoplasm of cells. Compared with PASS, FPASS presented significantly higher anticancer effects on inducing apoptosis, causing G0/G1 phase arrest on HepG2 cells and inhibiting tube formation on human umbilical vein endothelial cells (t=7.905, 4.399 and 3.454, respectively; P<0.01). Conclusions The pH-sensitive nanomicelle FPASS was successfully constructed. This micelle possessed a hypersensitive MRI-visible function and a targeting SF delivery capability which may contribute to a significant anti-HCC effect.

Objective To summarize the nursing care for one successful haploidentical allogeneic bone marrow transplantation (haplo-BMT) for one patient with severe aplastic anemia type-Ⅱ (SAA-Ⅱ). The patient accepted an umbilical cord blood transfusion sequentially combined with the second haplo-BMT after an engraftment failure of the first haplo-BMT. The experience of nursing care will be discussed and shared for patients with a second haplo-BMT. Methods The comprehensive nursing cares were utilized during haplo-BMT, it included preventive measures for secondary infections, closely control of side effects, promptly nursing intervention for gastrointestinal mucositis, hemorrhagic cystitis and epilepsy, psychological nursing for appeasing emotional variations, and addition of intravenous indwelling needle if necessary. Results The patient achieved a successful stem cell engraftment and survived a long-term granulopenia (granulocytes＜0.1×109/L) which lasted for 52 days with a recovery of varied complications. Conclusion The comprehensive nursing care can reduce the risk for secondary infections and other complications, it shed a new light on second allogeneic bone marrow transplantation for complicated patients

Objective To study the expression of ASPP2 and P16INK4a in esophageal carcinoma and their relationship to the apoptosis and related clinicopathological characteristics. Methods Immunohistochemistry S-P method was used to examine the expression of ASPP2 and P16INK4a in the pathological specimens of 112 esophageal carcinoma cases and 31 cases of normal esophageal mucosa. TUNEL was also employed to detect the rate of apopto-sis in 37 esophageal carcinoma cases and 12 cases of normal esophageal mucosa. Results The difference between the expression of ASPP2 and P16INK4a in esophageal carcinoma and normal esophageal mucosa was statistically signif-icant(P < 0.05). Their abnormal expressions were all related to lymph node metastasis and differentiation degree (P < 0.05). The difference between the positive rate of apoptosis in esophageal carcinoma and normal esophageal mucosa was statistically significant(P < 0.05). The abnormal expression of ASPP2 and P16INK4a was all related to apoptosis in esophageal carcinoma. Conclusions The different expression of ASPP2 and P16INK4a may cooperatively play a role in differentiation degree ,lymph nodes metastasis and apoptosis in esophageal carcinoma. Co-examina-tion of them may be useful for the diagnosis and guiding the clinical treatment in esophageal carcinoma.

Objective To investigate the application value of virtual touch tissue quantification (VTQ) technique in staging of chronic kidney disease (CKD). Methods VTQ examination was performed on a random sample of 96 CKD patients at different clinical stages and 45 healthy volunteers (control group). Shear wave velocity (SWV) of renal parenchyma was measured and compared. Correlation between SWV and clinical stage and glomeru-lar filtration rate (GFR) of CKD patients was analyzed. Results The SWV value of renal parenchyma decreased gradually, along with the progression of CKD disease and impairment of renal function. There was no significant difference(P>0.05)between the control group and the CKD1 group ( P=0.061), the CKD2 group and the CKD3 group (P = 0.238), and the CKD4 group and the CKD5 group (P = 0.624). The difference of SWV between the remaining groups was statistically significant(P < 0.05). SWV of renal parenchyma was negatively correlated with CKD stage (r =-0.65, P < 0.001), which means the higher the stage of CKD was associated with the lower the SWV. SWV was positively correlated with GFR (r = 0.73, P < 0.001), which means the lower the GFR was related to the lower the SWV. Conclusion VTQ technique can noninvasively reflect the changes of renal parenchyma elas-ticity and evaluate the impairment of renal function in CKD patients. It can provide a new quantitative evaluation index for the clinical staging of CKD.