Objective To conduct Rh blood group serological testing and third-generation sequencing(TGS)on 22 RhD variant voluntary blood donors in Chongqing and explore the phenotypic distribution and genotyping of RhD variants in Chongqing.Methods From January to August 2023,individuals who participated in blood donation in our blood center were selected as the study objects.RhD variant phenotype identification was performed using routine serological methods.Once the RhD variants were identified,tests on different antigenic epitopes of RhD were conducted using a D-screen assay kit.Furthermore,after the genomic DNA from 22 RhD variant blood samples was extracted,imbraided primers design and multi-segment amplification and splicing were used to sequence the full-length RHD gene for TGS.The RHD gene sequence was analyzed using SnapGene software.Results Among the 22 RhD variants,8 were DVI type 3(36.36%),with the main mutation of RHD-CE(3-6)-D hybrid allele.Six cases(27.27%)showed partial weak D15 type,with the main mutation of c.845G>A.There were 6 cases of Asia type Del(27.27%),with the main mutation of c.1227G>A.One case was weak D17 type with a mutation of c.340C>T and 1 case speculated to be partial D(c.491A>T,p.Asp164Val,missense mutation).Conclusion The most common RhD variant phenotype among blood donors in Chongqing is DVI type 3,and the full-length haplotype sequence of RHD variant alleles can be obtained by Pacific Bioscience single-molecule real-time sequencing(SMRT).

Objective:The effect of bone marrow soluble B cell maturation antigen (sBCMA) expression on the efficacy and side effects of chimeric antigen receptor (CAR) -modified T-cell-targeting B cell maturation antigen (BCMA) in patients with multiple myeloma (MM) .Methods:This study involved 29 patients with relapsed or refractory MM (RRMM) who received humanized anti-BCMA CAR-T cell clinical trials from January 2018 to December 2021. The expression of sBCMA in bone marrow before and after anti-BCMA CAR-T cell treatment was detected by flow cytometry and compared.Results:①Two months after BCMA CAR-T cell treatment, 20 patients (68.97%) achieved an overall response (OR), whereas nine patients had stable disease (SD) or miner emission (MR). ②The expression of sBCMA in the bone marrow of 20 patients with OR was higher before treatment than after [26 926 (18 215, 32 488) ng/L vs 9 968 (6 634, 11 459) ng/L; P<0.001]; no significant difference was observed in patients with MR and SD [41 187 (33 816, 47 046) ng/L vs. 33 954 (31 569, 36 256) ng/L; P=0.145]; sBCMA expression in patients with OR before CAR-T cell treatment was lower than in patients with MR and SD ( P=0.005). ③No significant linear correlation was found between the peak value of CAR-T cells and sBCMA expression in the bone marrow of all 29 patients with RRMM ( R2=0.035, P=0.330). ④No significant difference in sBCMA expression was found between grades 0-1 CRS group (13 patients) and grades 2-4 CRS group [16 patients; 32 045 (18 742, 40 801) ng/L vs 29 102 (24 679, 38 776) ng/L, P=0.879], nor between grade 0 ICANS group (22 patients) and grade 1-3 ICANS group [seven patients; 30 073 (19 375, 40 065) ng/L vs 33 816 (22 933, 43 459) ng/L, P=0.763]. Conclusion:sBCMA expression in the bone marrow is related to the efficacy of BCMA CAR-T cell therapy in patients with RRMM, but is not significantly correlated with the severity of adverse events. It may serve as a predictive biomarker for the efficacy of BCMA CAR-T cell therapy in these patients.

Background::Coronavirus disease 2019 (COVID-19) has potential risks for both clinically worsening pulmonary hypertension (PH) and increasing mortality. However, the data regarding the protective role of vaccination in this population are still lacking. This study aimed to assess the safety of approved vaccination for patients with PH.Methods::In this national prospective cohort study, patients diagnosed with PH (World Health Organization [WHO] groups 1 and 4) were enrolled from October 2021 to April 2022. The primary outcome was the composite of PH-related major adverse events. We used an inverse probability weighting (IPW) approach to control for possible confounding factors in the baseline characteristics of patients.Results::In total, 706 patients with PH participated in this study (mean age, 40.3 years; mean duration after diagnosis of PH, 8.2 years). All patients received standardized treatment for PH in accordance with guidelines for the diagnosis and treatment of PH in China. Among them, 278 patients did not receive vaccination, whereas 428 patients completed the vaccination series. None of the participants were infected with COVID-19 during our study period. Overall, 398 patients received inactivated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine, whereas 30 received recombinant protein subunit vaccine. After adjusting for baseline covariates using the IPW approach, the odds of any adverse events due to PH in the vaccinated group did not statistically significantly increase (27/428 [6.3%] vs. 24/278 [8.6%], odds ratio = 0.72, P = 0.302). Approximately half of the vaccinated patients reported at least one post-vaccination side effects, most of which were mild, including pain at the injection site (159/428, 37.1%), fever (11/428, 2.6%), and fatigue (26/428, 6.1%). Conclusions::COVID-19 vaccination did not significantly augment the PH-related major adverse events for patients with WHO groups 1 and 4 PH, although there were some tolerable side effects. A large-scale randomized controlled trial is warranted to confirm this finding. The final approval of the COVID-19 vaccination for patients with PH as a public health strategy is promising.

The gut microbiota is a vast microbial ecosystem,specifically present in the organism and plays an important regulatory role in the body's health or disease state together with its metabolites.After spinal cord injury,the complex pathophysiology at the site of trauma makes axonal regeneration difficult,and the autonomic motor dysfunction induced by spinal cord injury disrupts gastrointestinal function and causes gut microbiota imbalance.The previous clinical outcomes of neurorepair strategies after spinal cord injury have not been ideal.The dysregulated gut microbiota and neuroinflammation after spinal cord injury are closely associated with the prognosis of the patients.The potential mechanisms by which the gut microbiota may influence the neuroinflammation after spinal cord injury may include the activation of gut-associated lymphoid tissue and disruption of the intestinal barrier by the imbalanced microbiota,and gut microbiota and its metabolites such as lipopolysaccharides(LPS),short chain fatty acids(SCFAs),5-hydroxytryptamine(5-HT),and tryptophan,as well as immune cells,inflammatory factors,and neurotransmitters the local inflammatory response in the spinal cord through the circulatory system.This paper revews the studies on the changes in gut microbiota after spinal cord injury and their effects on the spinal cord neuroinflammation,providing new targets and new ideas for improving the neuroinflammation after spinal cord injury.

Objective To offer a detailed review of developments in research on noise-induced hearing loss by constructing a knowledge map in order to provide data for related studies in China.Methods The literature related to research on noise-induced hearing loss was retrieved from the Web of Science and used as the subject.Such software for visualization analysis as VOSviewer,CiteSpace and Bibliometrix was used to construct the knowledge map.The way in which research on noise-induced hearing loss evolved was explored in terms of trends of publication,co-occurrence networks and co-occurrence of key words.Results Research on noise-induced hearing loss was fast-developing.The United States ranked first in this field in terms of the total number of articles published and citations.China took the second place in the number of articles published.The top institutions in the number of articles published included the University of Michigan,University at Buffalo SUNY,Harvard,Karolinska Institute and National Institute for Occupational Safety and Health.Conclusion Research in this sphere started with cochlear hair cells.Cochlear implant,hidden hearing loss and cochlear synaptopathy have come to be the hot spots for related research.Re-search on hair cell regeneration and sex difference has provided a new line of thought for the gene therapy and hormone therapy of noise-induced hearing loss.

{L-End}Objective To analyze the correlation between occupational burnout and sleep quality among steelworkers. {L-End}Methods A total of 11 491 steelworkers from a large steel enterprise in Gansu Province were selected as the research subjects using convenient sampling method. The Burnout Questionnaire and the Pittsburgh Sleep Quality Index Scale were used to investigate their occupational burnout and sleep quality. Hierarchical regression analysis was used to analyze the effects of occupational burnout on the sleep quality. {L-End}Results The detection rate of occupational burnout and sleep disorder were 50.4% and 39.0%, respectively. There was a positive correlation between the level of occupational burnout and the total score of sleep quality (Spearman correlation coefficient=0.454, P<0.05). The results of hierarchical regression analysis, adjusting for confounding factors such as gender, age, marital status, education level, alcohol consumption, exercise, weekly working hours, seniority, work shift, noise exposure, dust exposure, and high-temperature work, showed that the score of occupational burnout was positively related to the score of sleep quality(P<0.01), explaining 16.0% of the variance in the score of sleep quality among these steelworkers. {L-End}Conclusion The detection rate of occupational burnout and sleep disorders are relatively high among the steelworkers in this enterprise. Higher levels of occupational burnout are associated with poorer sleep quality. Alleviating occupational burnout among steelworkers may contribute to improving their sleep quality.

Objective: To explore the prevalence and relevant factors of physical and emotional abuse by parents among children with autism spectrum disorder (ASD), so as to provide basis for intervention program of children abuse. Methods: A total of 221 ASD children from 3 special education institutions in Tangshan were investigated from March to October in 2021, 395 non ASD children from two kindergartens in urban and rural areas were selected by convenient sampling. Parents of these children were invited for online and on site questionnaire survey. The self designed violence questionnaire, Childhood Autism Rating Scale and Patient Health Questionnaire-9 were used to assess violence, severity of autism, depression of parents. Chi square test, Fisher s exact probability method and Logistic regression were used to analyze the influencing factors of violence. Results: About 81.9% of children with ASD and 72.9% of non ASD children experienced violence( P <0.05). The reported rates of physical and emotional violence in ASD children were 74.2% and 73.8% respectively, which in non ASD children were 58.7% and 65.8% respectively. There were significant differences in the 3 types of violence rate between the two groups ( P <0.05). Multivariate Logistic regression analysis showed that boys ( OR =1.70, 95% CI =1.12-2.60), annual per capita income <10 000 yuan( OR =2.43, 95% CI =1.45- 4.08 ), and parental depression ( OR mild =11.01, 95% CI =5.38-22.49; OR moderate =69.97，95% CI =24.25-201.93) were the risk factors for child violence exposure; ASD disease ( OR=1.96，95%CI =1.32-2.92), older age ( OR=1.19, 95%CI =1.01-1.41) and parental depression( OR mild =7.83, 95% CI =3.67-16.74; OR moderate =14.37，95% CI =6.17-33.46) were risk factors for physical violence; boys ( OR =1.62, 95% CI =1.11-2.36), mothers who work in manual labor ( OR=1.68, 95%CI =1.09-2.59) and parental depression ( OR mild =7.69, 95% CI =3.74-15.81; OR moderate =25.37, 95% CI =10.80-59.63) were risk factors for emotional violence( P < 0.05 ). Conclusion The reported rate of parental violence against children with ASD is high. Mental health promotion and social support for families with ASD should be strengthened.

ObjectiveTo determine the genomic characteristics of a subgenus B human adenovirus strain isolated in Shanghai in 2021. MethodsAn adenovirus type 55 strain was isolated and identified from a patient with acute hemorrhagic conjunctivitis （AHC）. Complete genome of the strain was obtained using the next-generation sequencing （NGS）. Phylogenetic trees were reconstructed based on the sequences of Hexon， Fiber， Penton and complete genome to genomically characterize this strain. ResultsPhylogenetic analysis based on the complete genome classified this strain （MH2021001） into subgenus B， subspecies B2 of HAdV-55. Hexon gene of MH2021001 had close phylogenetic relationship with HAdV-11， while Fiber and Penton genes had close relationship with HAdV-14. The MH2021001 showed high nucleotide identity with currently prevalent HAdV⁃55 strains （>99.90%）. The complete genome had 99.96% nucleotide identity to the 73-GD_CHN_2016 strain isolated in Guangdong. In addition， the amino acid sequence of MH2021001 had several substitutions in regions coding for E1B， L4， E3 and L5. ConclusionThis strain has been classified to HAdV-B55. No recombination event is identified in the complete genome. Due to multiple amino acid substitutions， the biological characteristics of the strain need to be further identified.

OBJECTIVE: To investigate the synergistic interaction between the deltoid muscle and the rotator cuff muscle group in patients with rotator cuff tears (RCT), as well as the impact of the critical shoulder angle (CSA) on deltoid muscle strength. METHODS: A retrospective analysis was conducted on clinical data from 42 RCT patients who met the selection criteria and were treated between March 2022 and March 2023. There were 13 males and 29 females, with an age range of 42-77 years (mean, 60.5 years). Preoperative visual analogue scale (VAS) score was 6.0±1.6. CSA measurements were obtained from standard anteroposterior X-ray films before operation, and patients were divided into two groups based on CSA measurements: CSA>35° group (group A) and CSA≤35° group (group B). Handheld dynamometry was used to measure the muscle strength of various muscle group in the shoulder (including the supraspinatus, infraspinatus, subscapularis, and anterior, middle, and posterior bundles of the deltoid). The muscle strength of the unaffected side was compared to the affected side, and muscle imbalance indices were calculated. Muscle imbalance indices between male and female patients, dominant and non-dominant sides, and groups A and B were compared. Pearson correlation analysis was used to examine the relationship between muscle imbalance indices and CSA as well as VAS scores. RESULTS: Muscle strength in all muscle groups on the affected side was significantly lower than on the unaffected side ( P<0.05). The muscle imbalance indices for the supraspinatus, subscapularis, infraspinatus, and anterior, middle, and posterior bundles of the deltoid were 14.8%±24.4%, 5.9%±9.7%, 7.2% (0, 9.1%), 17.2% (5.9%, 26.9%), 8.3%±21.3%, and 10.2% (2.8%, 15.4%), respectively. The muscle imbalance indices of the anterior bundle of the deltoid, supraspinatus, and infraspinatus were significantly lower in male patients compared to female patients ( P<0.05); however, there was no significant difference in muscle imbalance indices among other muscle groups between male and female patients or between the dominant and non-dominant sides ( P>0.05). There was a positive correlation between the muscle imbalance indices of infraspinatus and VAS score ( P<0.05), and a positive correlation between CSA and the muscle imbalance indices of middle bundle of deltoid ( P<0.05). There was no correlation between the muscle imbalance indices of other muscle groups and VAS score or CSA ( P>0.05). Preoperative CSA ranged from 17.6° to 39.4°, with a mean of 31.1°. There were 9 cases in group A and 33 cases in group B. The muscle imbalance indices of the anterior bundle of the deltoid was significantly lower in group A compared to group B ( P<0.05), while there was no significant difference in muscle imbalance indices among other muscle groups between group A and group B ( P>0.05). CONCLUSION Patients with RCT have a phenomenon of deltoid muscle strength reduction, which is more pronounced in the population with a larger CSA.
Male ; Female ; Humans ; Adult ; Middle Aged ; Aged ; Shoulder ; Rotator Cuff Injuries/surgery* ; Shoulder Joint/diagnostic imaging* ; Rotator Cuff/surgery* ; Muscle Strength ; Deltoid Muscle

Objective:To investigate the efficacy of recapping laminoplasty preserving the continuity of superior spinous ligament in the treatment of benign tumors in the lumbar spinal canal.Methods:A retrospective analysis was performed. The clinical data of 23 patients with benign tumors in lumbar spinal canal, admitted to our hospital from March 2018 to March 2020, were collected. Follow up was performed for 12-23 months; Japanese Orthopaedic Association (JOA) scores were used for efficacy evaluation. X-ray, CT and MRI were used for imaging evaluation.Results:The number of replanted lamina was 1-4, with an average of 2.2. The surgical duration was (77.2±22.7) min, ranged from 67 min to 146 min; and the amount of intraoperative bleeding was (127±32.6) mL, ranged from 90-290 mL. The tumors were completely removed in all patients, and there were 2 patients complicated with cerebrospinal fluid leakage, and the wound healed after electrolyte supplement and local pressure treatment. No spinal cord injury, epidural hematoma, infection or other related complications were noted. The JOA scores increased from 11.85±1.38 before surgery to 23.22±2.47 at the last follow-up, with significant difference ( t=18.505, P<0.001). Of them, 10 had excellent efficacy, 9 had good efficacy, and 4 had medium efficacy, enjoying an excellent and good rate of 82.6%. Lumbar lordosis angle (LLA) was (51.58±2.39)°at the last follow-up, which showed no significant difference as compared with the preoperative LLA ([52.24±3.17]°, t=0.672, P=0.505). Imaging results showed that there was no spondylolisthesis or instability of lumbar spine, no recurrence of tumors was noted, and no displacement of lamina or secondary reduction of spinal canal volume were noted. Conclusion:The treatment of benign tumors in lumbar spinal canal by modified recapping laminoplasty preserving the continuity of superior spinous ligament can restore the normal anatomical structure of lumbar spinal canal, achieve no bone loss and maintain lumbar curvature well.