ObjectiveTo investigate the short-term efficacy and safety of different doses of Botulinum toxin type A (BTX-A) injected under ultrasound guidance combined with modified catheter-balloon localization for post-stroke cricopharyngeal dysfunction (CPD), and to explore a relatively appropriate dose. MethodsA total of 136 patients with post-stroke CPD admitted to Taizhou Hospital of Zhejiang Province from December, 2023 to February, 2026 were randomly assigned into control group, 50 U group, 70 U group and 100 U group, with 34 patients in each group. The control group received conventional rehabilitation, whereas the three BTX-A groups received conventional rehabilitation plus the corresponding dose of BTX-A injected under ultrasound guidance combined with modified catheter-balloon localization. Videofluoroscopic Swallowing Study (VFSS) scores, Functional Oral Intake Scale (FOIS) scores, Yale Pharyngeal Residue Severity Rating Scale (YPR-SRS) grades, Murray Secretion Severity Scale (MSS) grades and ultrasonographic parameters were compared before and two weeks after intervention. ResultsAfter intervention, FOIS scores improved significantly in all groups (|Z| > 2.843, P < 0.01), and YPR-SRS and MSS grades also showed significant improvements in all BTX-A groups (|Z| > 4.147, P < 0.001). Pairwise comparisons revealed that the order of improvement from best to worst for FOIS, YPR-SRS and MSS grades was the 100 U group, followed by 70 U group, and then 50 U group (P < 0.05). For VFSS scores, the effect of time, group and interaction were all significant (F > 9.68, P < 0.001); pairwise comparisons showed that 100 U group achieved the best outcomes (P < 0.001). Regarding the activity and velocity of the geniohyoid muscle, the effects of time, group and interaction were also significant (F > 7.34, P < 0.001); pairwise comparisons indicated that 100 U group outperformed the other groups in both activity and velocity (P < 0.001). For hyoid bone displacement distance and shortening rate, the effects of time and interaction were significant (F > 3.07, P < 0.05), and the main effects of time on duration and velocity were significant (P < 0.01); pairwise comparisons showed that the 100 U group had superior displacement distance and shortening rate compared to the other groups (P < 0.05). During the treatment and follow-up periods, no serious adverse event occurred in any group. ConclusionUltrasound-guided BTX-A injection assisted by modified catheter-balloon localization may further improve short-term swallowing function in patients with post-stroke CPD， with a dosage of 100 U.

ObjectiveTo study the clinical characteristics and influencing factors of rheumatoid arthritis （RA） in the patients with cold dampness obstruction syndrome. MethodsThe RA patients treated in the Department of Traditional Chinese Medicine and Rheumatology of the China-Japan Friendship Hospital from August 2022 to June 2024 were selected. The demographic information， clinical data， laboratory test results， and traditional Chinese medicine （TCM） symptom information were collected for syndrome differentiation， on the basis of which the characteristics and influencing factors of cold dampness obstruction syndrome were analyzed. ResultsA total of 258 RA patients were selected in this study， including 88 （34.1%） patients with cold dampness obstruction syndrome， 53 （20.5%） patients with dampness and heat obstruction syndrome， 31 （12.0%） patients with wind dampness obstruction syndrome， 29 （11.2%） patients with liver-kidney deficiency syndrome， 19 （7.4%） patients with Qi-blood deficiency syndrome， 14 （5.4%） patients with phlegm-stasis obstruction syndrome， 15 （5.8%） patients with stasis obstructing collateral syndrome and 9 （3.5%） patients with Qi-Yin deficiency syndrome. The patients were assigned into two groups of cold dampness obstruction syndrome and other syndromes. The group of cold dampness obstruction syndrome had lower joint fever， 28-tender joint count （TJC28）， and 28-joint disease activity score （DAS28）-C-reactive protein （CRP） and higher central sensitization， cold feeling of joints， fear of wind and cold， cold limbs， and abdominal distention than the group of other syndromes （P<0.05）. The binary logistic regression analysis showed that central sensitization （OR 5.749， 95%CI 2.116-15.616， P<0.001） and DAS28-CRP （OR 0.600， 95% CI 0.418-0.862， P=0.006） were the independent factors influencing cold dampness obstruction syndrome in RA. ConclusionCold dampness obstruction syndrome is a common syndrome in RA patients. It is associated with central sensitization， cold feeling of joints， abdominal distension and may be a clinical syndrome associated with central sensitization.

Medical ultrasound technology is widely used for diagnosis and therapy in clinical practice.Ultrasound probes,which are directly contact with patients,pose a potential risk of pathogen transmission.This expert consen-sus was developed by a multidisciplinary team based on international guidelines,standards in China,and the results of a national survey,aiming to reduce the risk of healthcare-associated infection through standardizing reprocessing of medical ultrasound probes,and formulating consensus recommendations with the Delphi method.The consensus clarifies the reprocessing principles for three types of ultrasound probes of different infection risks:external-use ul-trasound probes,interventional percutaneous ultrasound probes,and internal-use ultrasound probes,puts forward systematic suggestions on the reprocessing standards and disinfection levels of ultrasound probe isolation covers and coupling agents,the reprocessing procedures and methods of ultrasound probes,as well as architectural layout and management of reprocessing,so as to provide a scientific prevention and control framework for ensuring ultrasound diagnosis and therapy safety.

Medical ultrasound technology is widely used for diagnosis and therapy in clinical practice.Ultrasound probes,which are directly contact with patients,pose a potential risk of pathogen transmission.This expert consen-sus was developed by a multidisciplinary team based on international guidelines,standards in China,and the results of a national survey,aiming to reduce the risk of healthcare-associated infection through standardizing reprocessing of medical ultrasound probes,and formulating consensus recommendations with the Delphi method.The consensus clarifies the reprocessing principles for three types of ultrasound probes of different infection risks:external-use ul-trasound probes,interventional percutaneous ultrasound probes,and internal-use ultrasound probes,puts forward systematic suggestions on the reprocessing standards and disinfection levels of ultrasound probe isolation covers and coupling agents,the reprocessing procedures and methods of ultrasound probes,as well as architectural layout and management of reprocessing,so as to provide a scientific prevention and control framework for ensuring ultrasound diagnosis and therapy safety.

Objective:To investigate the clinical value of ultrasound in evaluating pharyngeal dysphagia after stroke.Methods:Thirty stroke survivors with dysphagia formed the patient group, and 30 healthy persons formed the healthy group. All received pharyngeal ultrasound examinations by the same sonographer. The maximum distance from the hyoid bone to the mandible, the minimum distance, and the required time were measured or calculated. The hyoid bone′s motion, distance shortening rate, geniohyoid muscle activity, activity time, and activity speed were calculated. The differences in each value were compared, and the values were correlated with the videofluoroscopic swallowing study (VFSS) score using Spearman rank correlation. Receiver operating characteristics curves (ROC curves) were used to evaluate the value of hyoid bone and geniohyoid muscle activity for evaluating the severity of pharyngeal swallowing disorders after a stroke.Results:The average range of activity, activity time, and activity speed of the geniohyoid muscle in the patient group were all significantly different from the healthy group′s averages. The hyoid bone′s range of activity, activity time, activity speed, and the rate of shortening of its distance from the mandible were also significantly different, on average. The patients′ VFSS grades correlated strongly with the activity of the geniohyoid muscle, moderately with the geniohyoid muscle′s speed, and weakly with the duration of hyoid bone activity.Conclusion:The speed of geniohyoid muscle activity and hyoid bone activity time can be used to evaluate the severity of pharyngeal swallowing dysfunction after a stroke. Geniohyoid muscle activity is the best indicator.

Objective:To improve the understanding of indolent mantle cell lymphoma (MCL).Methods:The data of a patient with indolent leukemic MCL in the Second Affiliated Hospital of Nanjing Medical University in May 2013 were collected. The cell morphology was analyzed by using cell smear, the flow cytometry was used to make immunophenotype analysis, the karyotype analysis was performed by usig cytogenetic technique, and polymerase chain reaction (PCR) was used to make the immunoglobulin gene analysis. At the same time, lymph node pathology and immunohistochemistry were also analyzed. The related articles published were reviewed to sum up the characteristics and the treatment of indolent MCL.Results:The male patient aged 60 years was obviously asymptomatic accompanied with slow disease progression, leukemic manifestation and without lymphadenopathy. He received pathological biopsy because of located lymphadenopathy in 2008. Small cell morphology, Kappa light chain immunophenotype, t(11;14) translocation showed after the cytogenetic examination, clonal immune globulin gene rearrangement and low Ki-67 positive index were identified. In situ MCL was diagnosed by retrospective pathology.Conclusions:Indolent MCL is extremely rare. It is typically asymptomatic with none or minimal nodal involvement, indolent disease course, leukemic phase with mild lymphocytosis, Kappa light chain expression, simple karyotype, classical or small cell morphology of tumor cells and the positive index of Ki-67 <10%. In situ MCL can be seen in pathology examination. IgVH gene mutation positive and SOX11 negative expression are notable in indolent MCL. International prognostic index of MCL is probably not appropriate in the prognostic analysis of leukemic indolent MCL. It is emphasized that initial observation and having therapies only after the disease progression can be suited for indolent MCL.

Objective To analyze the epidemiological characteristics of food poisoning in Shenzhen from 2009 to 2018, and to provide a scientific basis for formulating control strategies of food poisoning. Methods The data of food poisoning events in Shenzhen from 2009 to 2018 was analyzed with descriptive epidemiological methods. Results There were 182 reported food poisoning events, resulting in 1786 cases and 3 death. The incidence of food poisoning events had a seasonal peak during May to September, and a total of 119 reported food poisoning events (65.39%, 119/182) occurred in that period of time with 1156 cases (64.73%, 1156/1786). There were 77 food poisoning events (42.31%) occurring in collective canteens with 927 cases (51.91%), making them the most frequent locations for food poisoning. The main pathogenic factors were bacteria, poisonous plants and chemicals. Incidents of bacterial food poisoning were mainly caused by Vibro parahemolyticus (51.73%, 60/116), Salmonella (26.73%, 30/116), and Staphylococcus aureus enterotoxin (11.21%, 13/116), etc. Hyacinth bean toxin and mushroom were responsible for 33.33% of the incidents caused by poisonous plants. Incidents of chemical food poisoning were mainly caused by nitrite (8.33%). Conclusion The prevention and control of food poisoning in Shenzhen should be focused on reducing bacterial food poisoning such as Salmonella and Vibrio parahaemolyticus, and supervision of food safety of catering units and collective canteens should be strengthened. Additionally, health education on prevention and control of food poisoning should be targeted at the high-risk population to reduce the risk of food poisoning.

Disinfection test is the main way to evaluate the disinfection effect of field disinfection and disinfection products, and the test microorganism is the basis of disinfection test, which determines the scientificity, accuracy and effectiveness of disinfection test. With the development of disinfection technology and the improvement of disease prevention and control needs, the disinfection evaluation system is constantly being improved. At the same time, not only disinfection tests are constantly updated, but also test microorganisms face new development needs and considerations. The construction of standard microbial strain system for disinfection tests in China should be further improved and promoted to ensure the independence and innovation of disinfection professional development, and to effectively promote independent innovation in disinfection-related industries in China.

Objective To evaluate the curative effect and feasibility of catheter-directed thrombolysis with urokinase for acute limb ischemia. Methods The clinical data of a total of 21 patients with acute limb ischemia, who were treated with infusion of urokinase through UniFuse thrombolytic catheter, were retrospectively analyzed. The clinical curative efficacy, prognosis and complications of catheter - directed thrombolysis (CDT) were summarized. Results In all patients, thrombolysis therapy was effective, the clinical symptoms were alleviated, and successful limb salvage was achieved. One patient died of cerebral hemorrhage due to renal decompensation. No other serious complications such as hemorrhage, hematoma or disability occurred. Conclusion Preliminary clinical study shows that CDT with urokinase is effective and safe for the treatment of acute limb ischemia. This therapy can help reduce unnecessary surgical procedures or stent implantation, and the risk of thrombolysis is controllable. (J Intervent Radiol, 2018, 27: 262-265)

Objective To investigate the effects of saturated fatty acids and unsaturated fatty acids on proliferation and autophagy of human lung cancer cells. Methods The lung cancer cells A549 were treated with stearic acid (saturated fatty acid) and doconexent (DHA, unsaturated fatty acid), respectively, in concentrations of 0, 30, 60, 120 and 240μmol/L. MTT test and cell clone formation assay were performed to detect the proliferation of A549 cells. The morphology of A549 autophagy was observed by confocal laser scanning microscopy after A549 cells were treated with stearic acid or DHA for 24 hours. Western blotting assay was used to detect the expression of autophagy-related protein after A549 cells were treated with stearic acid or DHA for 12, 24 and 36 hours, respectively. Results 30-240μmol/L stearic acid or DHA both inhibited the proliferation of A549 cells (P<0.05). Both stearic acid and DHA induced autophagy of A549 cells, meanwhile, down-regulated Phospho-mTOR (ser2481) and up-regulated LC3Ⅱ/LC3Ⅰ of A549 cells (P<0.05). Conclusions Both saturated fatty acid and unsaturated fatty acid can inhibit the proliferation and induce autophagy of lung cancer cells. The mechanisms of autophagy may be related to Phospho-mTOR (ser2481) signaling pathway.