Aim To study the antipsychotic effects of l-Scoulerine ( l-SLR) . Methods NMDAreceptorantag-onist MK-801 was used to induce the positive and neg-ative symptoms of schizophrenia and cognitive impair-ment in animal models. The effects of l-SLR were eval-uated on schizophrenia induced by MK-801 and on ex-trapyramidal system. Results l-SLR (10,15 mg · kg - 1 , ip) could suppress pre-pulse inhibition damage in rats induced by MK-801 (0. 3 mg·kg - 1 , ip); l-SLR(30 mg·kg - 1 , ip) could inhibit climbing behav-iors in mice induced by apomorphine, which suggested that l-SLR had significant inhibiting effects on the posi-tive symptoms of schizophrenia by MK-801 and apo-morphine. l-SLR could also induce social contact inhi-bition and cognitive impairment induced by MK-801 (0. 2 mg · kg - 1 , ip), which proposed that l-SLR could improve the negative symptoms and cognitive im-pairment by MK-801. Catalepsy in mice could be caused by the treatment dose of haloperidol (0. 8 mg· kg - 1 , ip), not by that of l-SLR(30 mg·kg - 1 , ip). Conclusion I-SLR has significant effects on the posi-tive and negative symptoms of schizophrenia and cogni-tive impairment and, the effect of l-SLR under effective dose on extrapyramidal system is obviously much less than that of haloperidol and l-SPD.

Objective To study the influence of pharmacy intravenous admixture servers(PIVAS)on human resource prioritized allocation.Methods We compared the time consumption and efficiency of drug dispensing as well as the human resource allocation before and after the establishment of PIVAS.The influence of PIVAS on the human resource allocation of nursing and pharmacy staff and work efficiency were analyzed.Results Nursing human resource were economized and we realized human resource prioritized allocation after the establishment of PIVAS.Conclusions Establishment of PIVAS facilitated the human resource prioritized allocation of nursing and pharmacy staff.It can promote the development of nursing cause and possesses wide application value.

Objective To investigate the status of the establishment and service of the rehabilitation departments in comprehensive hospitals in China mainland.Methods A questionnaire survey was conducted in 240 comprehensive hospitals with different grades distributed in the capital city of 31 provinces, autonomous regions, and municipality cities in China mainland in a stratified sampling way. The contents investigated are the settings of rehabilitation departments, the performances of the rehabilitation services, the staffing of the rehabilitation workers and the problems faced in rehabilitation. Then, statistical analysis were done between the developed eastern regions and economically less developed middle-western regions, as well as different grades of comprehensive hospitals. Results In total, 216 valid questionnaires were collected (72 tertiary hospitals, 72 secondary hospitals and 72 primary hospitals), and there are no statistically difference between eastern regions and middle-western regions(P=0.61). About 69% of the hospitals surveyed have built up the rehabilitation departments, and there are no statistically difference between different regions (P=0.30). As far as the performance of the rehabilitation services are concerned, 97.2% of them have carried out rehabilitation service, 60% of them can satisfy the demands of the patients, and there are no difference between the different grades and between the eastern and middle-western regions(P>0.05). In addition, 76.4% of them have rehabilitation doctors, 68.4% have physiotherapists(PT), 52.3% have traditional Chinese medicine doctors, 50.5% have occupational therapists(OT), 36.9% have speech therapists(ST), 17.8% have psychologists, and only 2.3% have social workers. The staff status on PT, OT and ST of the hospitals in eastern regions are significantly better than that in middle-western regions(P<0.01), and the staff status on rehabilitation doctors, PT, OT, ST and psychologists in the tertiary hospitals are significantly better than that in the secondary hospitals and primary hospitals(P<0.01). Finally, the first five problems the rehabilitation department faced are following: short of professional workers(63.9%), lack of training areas(51%), lack of modern rehabilitation service management system (50.5%), out-of-date equipments(49.5%) and low fees of rehabilitation treatment(49.1%). Conclusion Many problems exists in the rehabilitation departments of comprehensive hospitals, such as the development of rehabilitation departments, the professional workers, the quality and width of the service, the efficient use of rehabilitation resources, rehabilitation management and profession permission, the relative policies and regulations, personnel training and so on. Therefore, the government should enhance to put the supported policies into practice, and reinforce investment to the comprehensive hospitals, in particular, enhance the support of the comprehensive hospitals in middle-western regions, as well as the primary hospitals and the secondary hospitals, all of which will play a much more efficient role in rehabilitation for the disabled in the comprehensive hospitals.

Objective To investigate the correlation of ceramides(Cer),triglyceride-glucose(TyG)index,residual cholesterol(RC)and intracranial atherosclerotic stenosis(ICAS)in elderly with ischemic stroke(IS).Methods A total of 209 elderly IS patients admitted in the Affiliated Hospi-tal of Xuzhou Medical University from January to December 2022 were recruited,and according to intracranial artery stenosis,they were divided into stenosis group(n=122)and non-stenosis group(n=87).TyG index and RC levels were calculated after testing different types of Cer.Spearman correlation analysis and logistic regression analysis were used.Results Compared with the non-stenosis group,the stenosis group had significantly larger proportions of higher levels of LP(a),HbA1c,TyG index,RC and Cer16∶0,Cer18∶0,Cer24∶1,Cer16∶0/Cer24∶0,Cer24∶1/24∶0 and Cer18∶0/24∶0,and lower Cer24∶ 0 level(P＜0.05,P＜0.01).The levels of Cer16∶0,Cer18∶0,Cer24∶1,Cer16∶0/24∶0,Cer18∶0/24∶0,Cer24∶1/24∶0,LP(a),HbA1c,TyG index and RC were positively correlated with(r=0.290,0.343,0.383,0.436,0.434,0.481,0.166,0.248,0.140,0.204,P＜0.05,P＜0.01),and Cer24∶0 was negatively with ICAS(r=-0.247,P＜0.01).Cer18∶0,Cer24∶1,Cer16∶0/Cer24∶0,Cer18∶0/Cer24∶0 and RC were important influencing factors for ICAS(P＜0.05,P＜0.01).Conclusion The levels of Cer,TyG index and RC are higher in elderly IS patients,and these indicators might be the risk factors for ICAS.

BACKGROUNDExperimental studies and preliminary clinical studies have suggested that growth hormone (GH) treatment may improve cardiovascular parameters in chronic heart failure (CHF). Recombinant human GH (rhGH) has been delivered by a recombinant protein, by plasmid DNA, and by genetically engineered cells with different pharmacokinetic and physiological properties. The present study aimed to examine a new method for delivery of rhGH using genetically modified bioartificial muscles (BAMs), and investigate whether the rhGH delivered by this technique improves left ventricular (LV) function in rats with CHF.

METHODSPrimary skeletal myoblasts were isolated from several Sprague-Dawley (SD) rats, cultured, purified, and retrovirally transduced to synthesize and secrete human rhGH, and tissue-engineered into implantable BAMs. Ligation of the left coronary artery or sham operation was performed. The rats that underwent ligation were randomly assigned to 2 groups: CHF control group (n = 6) and CHF treatment group (n = 6). The CHF control group received non-rhGH-secreting BAM (GFP-BAMs) transplantation, and the CHF treatment group received rhGH-secreting BAM (GH-BAMs) transplantation. Another group of rats served as the sham operation group, which was also randomly assigned to 2 subgroups: sham control group (n = 6) and sham treatment group (n = 6). The sham control group underwent GFP-BAM transplantation, and the sham treatment group underwent GH-BAM transplantation. GH-BAMs and GFP-BAMs were implanted subcutaneously into syngeneic rats with ligation of the left coronary artery or sham operation was performed. Eight weeks after the treatment, echocardiography was performed. hGH, insulin-like growth factor-1 (IGF-1) and TNF-alpha levels in rat serum were measured by radioimmunoassay and ELISA, and then the rats were killed and ventricular samples were subjected to immunohistochemistry.

RESULTSPrimary rat myoblasts were retrovirally transduced to secrete rhGH and tissue-engineered into implantable BAMs containing parallel arrays of postmitotic myofibers. In vitro, they secreted 1 to 2 microg of bioactive rhGH per day. When implanted into syngeneic rat, GH-BAMs secreted and delivered rhGH. Eight weeks after therapy, LV ejection fraction (EF) and fractional shortening (FS) were significantly higher in CHF rats treated with GH-BAMs than in those treated with GFP-BAMs ((65.0 +/- 6.5)% vs (48.1 +/- 6.8)%, P < 0.05), ((41.3 +/- 7.4)% vs (26.5 +/- 7.1)%, P < 0.05). LV end-diastolic dimension (LVEDD) was significantly lower in CHF rats treated with GH-BAM than in CHF rats treated with GFP-BAM (P < 0.05). The levels of serum GH and IGF-1 were increased significantly in both CHF and sham rats treated with GH-BAM. The level of serum TNF-alpha decreased more significantly in the CHF treatment group than in the CHF control group.

CONCLUSIONSrhGH significantly improves LV function and prevents cardiac remodeling in rats with CHF. Genetically modified tissue-engineered bioartificial muscle provides a method delivering recombinant protein for the treatment of heart failure.

Animals ; Bioartificial Organs ; Echocardiography ; Heart Failure ; therapy ; Human Growth Hormone ; administration & dosage ; Myoblasts, Skeletal ; metabolism ; Myocardial Infarction ; pathology ; physiopathology ; therapy ; Rats ; Rats, Sprague-Dawley ; Recombinant Proteins ; administration & dosage ; Tissue Engineering ; Tumor Necrosis Factor-alpha ; blood ; Ventricular Function, Left

Objective To provide suggestions on how to improve the ability of rehabilitation nursing by investigating the current situation of clinical nurses' knowledge, skills and cognition of rehabilitation nursing and analyzing the influential factors. Methods According to the cross-sectional survey method, a self-designed questionnaire was used to investigate the clinical nurses' current status of knowledge and skills, cognition of rehabilitation nursing.Totally 278 nurses from 7 hospitals were included in this study. Results The scores of clinical nurses' knowledge, skeills and cognition of rehabilitation nursing were 11.13 ±3.29 and 33.27 ±3.92. Variables associated with the scores of the rehabilitation nursing are age, nursing professional title, work duration, and degree of education. Conclusion The clinical nurses had positive attitude on rehabilitation,but their knowledge and skill were insufficient. Measures should be taken to improve nurses'ability of rehabilitation nursing.

BACKGROUND: Exosomes have the function of some mesenchymal stem cells. Understanding the substance composition that plays a representative role in mesenchymal stem cell exosomes will provide clues for further exploration of synthetic exosome analogues. OBJECTIVE: To investigate the difference of microRNA expression profiles in exosomes derived from passage 2 and 5 human umbilical cord mesenchymal stem cells (hUC-MSCs). METHODS: Exosomes in the supernatant of passage 2 and 5 hUC-MSCs were extracted by ultra-high speed centrifugation. The established library was sequenced by using high-throughput sequencing technology. Then we analyzed the sequence results so as to understand the microRNA expression between different groups, and finally did a cluster analysis. RESULTS AND CONCLUSION: 427 657 kinds of microRNAs were detected in the exosomes from passage 2 hUC-MSCs, accounting for 68.93% of the total microRNAs detected; and 119283 microRNAs were detected in the exosomes from passage 5 hUC-MSCs, accounting for 19.22% of the total microRNAs detected. There were 73 526 microRNAs shared between the exosomes from passage 2 and passage 5 hUC-MSCs, accounting for 11.85% of the total microRNAs detected. Bioinformatics analysis (cluster analysis) results showed that these miRNAs were likely to be involved in 161 biological processes, including cell repair, immune and anti-aging. The microRNAs in exosomes from passage 2 to passage 5 hUC-MSCs were largely different. Partial miRNAs exhibited significantly reduced copy numbers. The top five microRNAs with a higher amount, including has-miR-146a-5p, has-miR-191-5p, has-miR-493-3p, has-miR-423-5p, and has-miR-134-5p, have the potential to be the component of synthetic exosome analogues.

To study the quality control of three traditional Chinese medicines derived from Gleditsia sinensis [Gleditsiae Sinensis Fructus(GSF), Gleditsiae Fructus Abnormalis(GFA), and Gleditsiae Spina(GS)], this paper established a multiple reaction monitoring(MRM) approach based on ultra-high performance liquid chromatography-triple quadrupole-linear ion-trap mass spectrometry(UHPLC-Q-Trap-MS). Using an ACQUITY UPLC BEH C_(18) column(2.1 mm × 100 mm, 1.7 μm), gradient elution was performed at 40 ℃ with water containing 0.1% formic acid-acetonitrile as the mobile phase running at 0.3 mL·min~(-1), and the separation and content determination of ten chemical constituents(e.g., saikachinoside A, locustoside A, orientin, taxifolin, vitexin, isoquercitrin, luteolin, quercitrin, quercetin, and apigenin) in GSF, GFA, and GS were enabled within 31 min. The established method could quickly and efficiently determine the content of ten chemical constituents in GSF, GFA, and GS. All constituents showed good linearity(r>0.995), and the average recovery rate was 94.09%-110.9%. The results showed that, the content of two alkaloids in GSF(2.03-834.75 μg·g~(-1)) was higher than that in GFA(0.03-10.41 μg·g~(-1)) and GS(0.04-13.66 μg·g~(-1)), while the content of eight flavonoids in GS(0.54-2.38 mg·g~(-1)) was higher than that in GSF(0.08-0.29 mg·g~(-1)) and GFA(0.15-0.32 mg·g~(-1)). These results provide references for the quality control of G. sinensis-derived TCMs.
Flavonoids/analysis* ; Alkaloids ; Chromatography, High Pressure Liquid/methods* ; Mass Spectrometry ; Drugs, Chinese Herbal

ObjectiveTo investigate effect of conducting training of autism spectrum disorder （ASD） early screening skill on improving the ability to early identify ASD of medical staffs in primary care hospitals. MethodsIn September 2021， the training of ASD early screening skills was carried out for medical staffs from 20 primary care hospitals in Chengdu. After training， the training effect was evaluated. The numbers of referrals from primary care hospitals to superior hospitals， confirmed ASD as well as their average diagnostic age of children with ASD before and after training were used as evaluation indicators. ResultsAfter training， the number of children with suspected ASD referred by primary care hospitals was more than that before training ［（16.65±11.60） vs. （3.40±2.23）， t=5.431， P<0.01］， the number of children diagnosed with ASD was more than that before training［（6.85±4.93） vs. （2.45±1.67）， t=4.171， P<0.01］， and the differences were statistically significant. As for the diagnosed age of ASD children， after training， the average age was lower than that before training ［（34.95±11.67） vs. （42.2±14.64）， t=-2.553， P=0.019］. ConclusionTraining of ASD early screening skills for medical staffs in primary care hospitals may help to improve their ability to early screening ASD children.

Objective: To understand the current status of diagnosis and treatment of chronic lymphocytic leukemia (CLL) /small lymphocytic lymphoma (SLL) among hematologists, oncologists, and lymphoma physicians from hospitals of different levels in China. Methods: This multicenter questionnaire survey was conducted from March 2021 to July 2021 and included 1,000 eligible physicians. A combination of face-to-face interviews and online questionnaire surveys was used. A standardized questionnaire regarding the composition of patients treated for CLL/SLL, disease diagnosis and prognosis evaluation, concomitant diseases, organ function evaluation, treatment selection, and Bruton tyrosine kinase (BTK) inhibitor was used. Results: ①The interviewed physicians stated that the proportion of male patients treated for CLL/SLL is higher than that of females, and the age is mainly concentrated in 61-70 years old. ②Most of the interviewed physicians conducted tests, such as bone marrow biopsies and immunohistochemistry, for patient diagnosis, in addition to the blood test. ③Only 13.7% of the interviewed physicians fully grasped the initial treatment indications recommended by the existing guidelines. ④In terms of cognition of high-risk prognostic factors, physicians' knowledge of unmutated immunoglobulin heavy-chain variable and 11q- is far inferior to that of TP53 mutation and complex karyotype, which are two high-risk prognostic factors, and only 17.1% of the interviewed physicians fully mastered CLL International Prognostic Index scoring system. ⑤Among the first-line treatment strategy, BTK inhibitors are used for different types of patients, and physicians have formed a certain understanding that BTK inhibitors should be preferentially used in patients with high-risk factors and elderly patients, but the actual use of BTK inhibitors in different types of patients is not high (31.6%-46.0%). ⑥BTK inhibitors at a reduced dose in actual clinical treatment were used by 69.0% of the physicians, and 66.8% of the physicians had interrupted the BTK inhibitor for >12 days in actual clinical treatment. The use of BTK inhibitors is reduced or interrupted mainly because of adverse reactions, such as atrial fibrillation, severe bone marrow suppression, hemorrhage, and pulmonary infection, as well as patients' payment capacity and effective disease progression control. ⑦Some differences were found in the perceptions and behaviors of hematologists and oncologists regarding the prognostic assessment of CLL/SLL, the choice of treatment options, the clinical use of BTK inhibitors, etc. Conclusion: At present, a gap remains between the diagnosis and treatment of CLL/SLL among Chinese physicians compared with the recommendations in the guidelines regarding the diagnostic criteria, treatment indications, prognosis assessment, accompanying disease assessment, treatment strategy selection, and rational BTK inhibitor use, especially the proportion of dose reduction or BTK inhibitor discontinuation due to high adverse events.
Female ; Humans ; Male ; Aged ; Middle Aged ; Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy* ; Prognosis ; Lymphoma, B-Cell ; Immunohistochemistry ; Immunoglobulin Heavy Chains/therapeutic use*