Objective To explore the efficacy and safety of recombinant human anti-severe acute respiratory syn-drome coronavirus 2(anti-SARS-CoV-2)monoclonal antibody injection(F61 injection)in the treatment of patients with coronavirus disease 2019(COVID-19)combined with renal damage.Methods Patients with COVID-19 and renal damage who visited the PLA General Hospital from January to February 2023 were selected.Subjects were randomly divided into two groups.Control group was treated with conventional anti-COVID-19 therapy,while trial group was treated with conventional anti-COVID-19 therapy combined with F61 injection.A 15-day follow-up was conducted after drug administration.Clinical symptoms,laboratory tests,electrocardiogram,and chest CT of pa-tients were performed to analyze the efficacy and safety of F61 injection.Results Twelve subjects(7 in trial group and 5 in control group)were included in study.Neither group had any clinical progression or death cases.The ave-rage time for negative conversion of nucleic acid of SARS-CoV-2 in control group and trial group were 3.2 days and 1.57 days(P=0.046),respectively.The scores of COVID-19 related target symptom in the trial group on the 3rd and 5th day after medication were both lower than those of the control group(both P＜0.05).According to the clinical staging and World Health Organization 10-point graded disease progression scale,both groups of subjects improved but didn't show statistical differences(P＞0.05).For safety,trial group didn't present any infusion-re-lated adverse event.Subjects in both groups demonstrated varying degrees of elevated blood glucose,elevated urine glucose,elevated urobilinogen,positive urine casts,and cardiac arrhythmia,but the differences were not statistica-lly significant(all P＞0.05).Conclusion F61 injection has initially demonstrated safety and clinical benefit in trea-ting patients with COVID-19 combined with renal damage.As the domestically produced drug,it has good clinical accessibility and may provide more options for clinical practice.

Objective To investigate the clinical characteristics and prognosis of pneumococcal meningitis(PM),and drug sensitivity of Streptococcus pneumoniae(SP)isolates in Chinese children.Methods A retrospective analysis was conducted on clinical information,laboratory data,and microbiological data of 160 hospitalized children under 15 years old with PM from January 2019 to December 2020 in 33 tertiary hospitals across the country.Results Among the 160 children with PM,there were 103 males and 57 females.The age ranged from 15 days to 15 years,with 109 cases(68.1% )aged 3 months to under 3 years.SP strains were isolated from 95 cases(59.4% )in cerebrospinal fluid cultures and from 57 cases(35.6% )in blood cultures.The positive rates of SP detection by cerebrospinal fluid metagenomic next-generation sequencing and cerebrospinal fluid SP antigen testing were 40% (35/87)and 27% (21/78),respectively.Fifty-five cases(34.4% )had one or more risk factors for purulent meningitis,113 cases(70.6% )had one or more extra-cranial infectious foci,and 18 cases(11.3% )had underlying diseases.The most common clinical symptoms were fever(147 cases,91.9% ),followed by lethargy(98 cases,61.3% )and vomiting(61 cases,38.1% ).Sixty-nine cases(43.1% )experienced intracranial complications during hospitalization,with subdural effusion and/or empyema being the most common complication[43 cases(26.9% )],followed by hydrocephalus in 24 cases(15.0% ),brain abscess in 23 cases(14.4% ),and cerebral hemorrhage in 8 cases(5.0% ).Subdural effusion and/or empyema and hydrocephalus mainly occurred in children under 1 year old,with rates of 91% (39/43)and 83% (20/24),respectively.SP strains exhibited complete sensitivity to vancomycin(100% ,75/75),linezolid(100% ,56/56),and meropenem(100% ,6/6).High sensitivity rates were also observed for levofloxacin(81% ,22/27),moxifloxacin(82% ,14/17),rifampicin(96% ,25/26),and chloramphenicol(91% ,21/23).However,low sensitivity rates were found for penicillin(16% ,11/68)and clindamycin(6% ,1/17),and SP strains were completely resistant to erythromycin(100% ,31/31).The rates of discharge with cure and improvement were 22.5% (36/160)and 66.2% (106/160),respectively,while 18 cases(11.3% )had adverse outcomes.Conclusions Pediatric PM is more common in children aged 3 months to under 3 years.Intracranial complications are more frequently observed in children under 1 year old.Fever is the most common clinical manifestation of PM,and subdural effusion/emphysema and hydrocephalus are the most frequent complications.Non-culture detection methods for cerebrospinal fluid can improve pathogen detection rates.Adverse outcomes can be noted in more than 10% of PM cases.SP strains are high sensitivity to vancomycin,linezolid,meropenem,levofloxacin,moxifloxacin,rifampicin,and chloramphenicol.[Chinese Journal of Contemporary Pediatrics,2024,26(2):131-138]

Gastrointestinal stromal tumors(GISTs)in the stomach,duodenum,and rectum have low occurrence,and the coexistence GISTs in three parts with neurofibromatosis type Ⅰ(NF-Ⅰ)is even rare.This paper reports a case of GISTs with a family history of NF-Ⅰ.There were multiple nodular masses of different sizes on the patient's face,trunk,and limbs.The patient was admitted due to chest tightness for 5 days and black stools for 1 day.Enhanced CT examination of the abdomen suggested multiple space-occupying lesions in the upper abdomen with multiple small nodules under the abdominal wall,and neurofibromatosis and intestinal stromal tumor cannot be excluded.Finally,surgical pathology confirmed that the multiple tumors in the abdominal cavity were GISTs.The case was confirmed as wild-type GISTs by genetic testing,and the patient recovered well nearly one year after the operation.
Gastrointestinal Stromal Tumors/genetics* ; Humans ; Neurofibromatosis 1/genetics*

Nine new compounds, including five natural rarely-occurring 2, 3-dihydro-1H-indene derivatives named diaporindenes E-I (1-5), and four new benzophenone analogues named tenellones J-M (6-9) were isolated from the deep-sea sediment-derived fungus Phomopsis lithocarpus FS508. All the structures for these new compounds were fully characterized on the basis of spectroscopic data, NMR spectra, and ECD calculation and single-crystal X-ray diffraction analysis. The potential anti-tumor activities of compounds 1-9 against four tumor cell lines SF-268, MCF-7, HepG-2, and A549 were evaluated using the SRB method. Compound 7 exhibited cytotoxic activity against the SF-268 cell line with an IC
Antineoplastic Agents/pharmacology* ; Cell Line, Tumor ; Crystallography, X-Ray ; Fungi ; Molecular Structure ; Phomopsis

Background and Objectives: Recent studies have described direct reprogramming of mouse and human somatic cells into induced neural stem cells (iNSCs) using various combinations of transcription factors. Although iNSC technology holds a great potential for clinical applications, the low conversion efficiency and limited reproducibility of iNSC generation hinder its further translation into the clinic, strongly suggesting the necessity of highly reproducible method for human iNSCs (hiNSCs). Thus, in orderto develop a highly efficient and reproducible protocol for hiNSC generation, we revisited the reprogramming potentials of previously reported hiNSC reprogramming cocktails by comparing the reprogramming efficiency of distinct factor combinations including ours. Methods: We introduced distinct factor combinations, OSKM (OCT4+SOX2+KLF4+C-MYC), OCT4 alone, SOX2 alone, SOX2+HMGA2, BRN4+SKM+SV40LT (BSKMLT), SKLT, SMLT, and SKMLT and performed comparative analysis of reprogramming potentials of distinct factor combinations in hiNSC generation. Results: Here we show that ectopic expression of five reprogramming factors, BSKMLT leads the robust hiNSC generation (>80 folds enhanced efficiency) from human somatic cells compared with previously described factor combinations. With our combination, we were able to observe hiNSC conversion within 7 days of transduction. Throughout further optimization steps, we found that both BRN4 and KLF4 are not essential for hiNSC conversion. Conclusions Our factor combination could robustly and reproducibly generate hiNSCs from human somatic cells with distinct origins. Therefore, our novel reprogramming strategy might serve as a useful tool for hiNSC-based clinical application.

Objective To study the clinical characteristics of brain contusion in children and discuss the corresponding treatment strategies.Methods From February 2013 to December 2017,the clinical data of 32 patients(aged 1-14 years)with cerebral contusion and treated in the department of brain of the affiliated hospital of armed police logistics college were collected,including 22 males and 10 females.The age of patients ranged from 1 to 13.5 years,with the average of(6.03 ± 3.96)years.Patients were divided into low age group(1-4 years old,n=14)and high age group(5-14 years old,n=18)according to their age.Data of the brain damage location and distribution,Glasgow Coma Scale(GCS)/Children's Coma Scale (CCS), intracranial pressure (ICP), cerebral edema, airway condition, traumatic epilepsy and electroencephalogram (EEG) were summarized and analyzed. Results The duration of hospitalization was 17-57 d, with the average of (34.2 ± 11.5)d.All the children were treated with hyperbaric oxygen for 14-51 d,with an average of(36.1±5.1)d.There were no significant differences in the depth of brain damage and the location of brain injury between the two age groups(P>0.05). The coma scores at the admission and the discharge were significantly lower in low age group than those of the high age group (P<0.05). The duration of ICP monitoring was 6-15 d, with the average of (7.5±2.0) d. The ICP level and the resonance index(RI)value of cerebral edema monitoring at the admission was higher in the low age group than those in the high age group(P<0.05).The abnormal time of RI was less in the low age group than that in the high age group(P<0.05).There were no significant differences in seizures and EEG classification between two groups (P>0.05). There were 10 cases in each group received the transnasal intubation,and the average days with intubation were longer in the low age group than those of the high age group(P<0.05).Conclusion The clinical manifestations,imaging features,ICP,the degree of brain edema, seizures and airway management in children of different ages are different. The treatment should be carried out as soon as possible,actively and comprehensively,especially in the clinical management for the children of low age.

In the present study, four new sesquiterpenoids, chimonols A-D (compounds 1-4), together with four known compounds (5-8) were isolated from the EtOAc extract of Chimonanthus praecox Link. The structures of these new compounds were elucidated on the basis of spectroscopic techniques (UV, IR, MS, and 1D and 2D NMR), and their absolute configurations were established by comparing experimental and calculated electronic circular dichroism (ECD) spectra. Compounds 1-8 were evaluated for antimicrobial activities and the minimum inhibitory concentrations (MICs) were determined by the broth microdilution method in 96-well culture plates. Compounds 1, 2, and 7 exhibited weak antibacterial effects for S. aureus (ATCC 6538), E. coli (ATCC 11775), and P. aeruginosa (ATCC 10145) with MIC values being 158-249 µg·mL. Compounds 3-7 showed activities against C. glabrata (ATCC 2001) and S. aureus (ATCC 43300) with MIC values being 128-197 µg·mL. Compounds 1-4 showed activity against S. aureus (ATCC 25923) with MIC values being 162-254 µg·mL. The present study provided a basis for future evaluation of these compounds as antibacterial agents.
Anti-Bacterial Agents ; chemistry ; isolation & purification ; pharmacology ; Calycanthaceae ; chemistry ; Escherichia coli ; drug effects ; Microbial Sensitivity Tests ; Molecular Structure ; Plant Extracts ; chemistry ; isolation & purification ; pharmacology ; Sesquiterpenes ; chemistry ; isolation & purification ; pharmacology ; Staphylococcus aureus ; drug effects

Objective To investigate nurses' recognition on the related knowledge of cuffed balloons administration for patients with endotracheal tube. Methods Questionnaire survey on the recognition's degree on the related knowledge of cuffed balloons administration for patients with endotracheal tube were performed in several nurses in Beijing 731 hosiptal. Results Nurses' recognition on the knowledge of cuffed ballons administration for patients with endotracheal tube have some deficiency, however, the accuracy of evaluating the cuffed balloon's pressure scientifically is 34.8%. Comparing the degree of mastering cuffed balloon's inflating volume, deflating frequency, deflating time among the nurses from different section office, with different titles,whether have ICU work experience , whether have endtracheal intubation nursing experience, in all of the aspect above, the differences between them have statistically significant. (P<0.05) Especially, the nurse-in-charge's degree of mastering is much better than the other junior nurses obviously, so the difference have highly statistics significance (P<0. 01 ). ICU nurses with degree of mastering are better than nurses in other section offices (P<0. 05). Conclusions The rational cuffed balloon administration is very important in clinical nursing activity, more than all, the first step of recognjtion on the related cuffed balloon knowledge is the cuffed balloon administration. The suggestion is to carry out the hospital-wide forums and lectures, to strengthen cross-training among different section offices continuously, to improve the nursing technology level of cuffed balloon administration and to improve the nursing quality, could promote the rate of successful rescue of critical patient and reduce their pain.

Objective To investigate the needs and its satisfaction degrees of the family members of ICU patients at the different stages. Methods 27 patients' family members who were complied to the selected standard were investigated by the Critical Care Family Needs Inventory (CCFNI) and the Needs Met Inventory (MNI) within 24 hours and after 72 hours separately after the patients were admitted in the ICU. Results The subscale of assurance of the patients was the important one of patients' family members' needs, so there was no statistical significance between the condition within 24 h and the condition after 72 h (P > 0.05). The conditions of support acquisition and comfort after 72 h were obviously higher than the conditions within 24 h, so the difference had statistical meaning (P < 0. 01). The degrees of satisfaction after 72 h was higher than that within 24 h. Sufficiency in information after 72 h was obviously higher than that within 24 h, showing a statisticeal meaning (P <0.01). Conclusions The needs and its satisfaction degrees of ICU patients' family members at the different stages are different. The ICU medical staff should pay full attention to all kinds of patients' needs, thereby increasing their satisfaction degrees.

Objective To find out the major stress sources of contract nurses and investigate their influential factors.Methods Job stressors scale was used to measure 109 contract nurses of a hospital in Beijing.Results The mean stress level of contract nurses was 2.76.The major sources of stress were nursing specialty, workload and time distritmtion and nursing to patients.There was significant difference in the job stress of iob title or section(P<0.05).Conclusions The contract nurses'job stress is in a high level.Major stress resources of contract nurses include shift work.loW salary and welfare, a little chance to get retraining and worrying about nursing disputes and mistakes etc.The degrees of contract nurses'job stress are influenced by the different section offices and job titles.The managers of the hospital and the contract nurses themselves should work together to try to alleiate the contract nurses'job stress.