BACKGROUND:The prevalence of osteoporosis is high in postmenopausal women,but muscle mass,grip strength,and how these factors affect osteoporosis are understudied,and the exact link between them has not been clarified.OBJECTIVE:To investigate the correlation between muscle mass,grip strength,appendicular skeletal muscle index and bone mineral density in postmenopausal women with osteoporosis and to assess the potential values of these indices in predicting and diagnosing postmenopausal osteoporosis.METHODS:Eighty-three postmenopausal women were collected from the outpatient clinic of the Third Affiliated Hospital of Guangzhou University of Chinese Medicine from February 2023 to January 2024.General data were collected.Bone mineral density was detected.T-value,muscle mass of each part,grip strength were recorded.The body mass index and appendicular skeletal muscle index were calculated.The patients were categorized into non-osteoporosis group(n=17)and postmenopausal osteoporosis group(n=66)according to T value and fracture history,and were statistically analyzed accordingly.RESULTS AND CONCLUSION:(1)The body mass,body mass index,bone mineral density of the overall lumbar spine,muscle mass and appendicular skeletal muscle index were higher in the non-osteoporosis group than the osteoporosis group(P＜0.05).(2)Muscle mass was positively correlated with bone mineral density of the overall lumbar spine and individual vertebrae(P＜0.05).(3)Multiple stepwise linear regression analysis showed that body mass and grip strength were linearly and positively correlated with muscle mass;body height and muscle mass were linearly and positively correlated with grip strength,and body mass was linearly and negatively correlated with grip strength.Body mass index was linearly and positively correlated with bone mineral density,and age was linearly and negatively correlated with bone mineral density.(4)Analysis by receiver operating characteristic curve showed that:muscle mass(the area under the curve,sensitivity,specificity and critical value of muscle mass were 0.744,76.50％,74.20％and 36.50 kg,respectively,with P=0.002)and appendicular skeletal muscle index(the area under the curve,sensitivity,specificity and critical value of appendicular skeletal muscle index were 0.739,82.40％,62.10％and 5.81 kg/m2,respectively,and P=0.002)had good predictive value for postmenopausal osteoporosis.To conclude,a reduction in muscle mass and appendicular skeletal muscle index can help to predict the risk of postmenopausal osteoporosis,and the possibility of osteoporosis should be taken into account in postmenopausal women when muscle mass is＜36.50 kg or appendicular skeletal muscle index is＜5.81 kg/m2,in order to prevent the occurrence of postmenopausal osteoporosis.

BACKGROUND:The prevalence of osteoporosis is high in postmenopausal women,but muscle mass,grip strength,and how these factors affect osteoporosis are understudied,and the exact link between them has not been clarified.OBJECTIVE:To investigate the correlation between muscle mass,grip strength,appendicular skeletal muscle index and bone mineral density in postmenopausal women with osteoporosis and to assess the potential values of these indices in predicting and diagnosing postmenopausal osteoporosis.METHODS:Eighty-three postmenopausal women were collected from the outpatient clinic of the Third Affiliated Hospital of Guangzhou University of Chinese Medicine from February 2023 to January 2024.General data were collected.Bone mineral density was detected.T-value,muscle mass of each part,grip strength were recorded.The body mass index and appendicular skeletal muscle index were calculated.The patients were categorized into non-osteoporosis group(n=17)and postmenopausal osteoporosis group(n=66)according to T value and fracture history,and were statistically analyzed accordingly.RESULTS AND CONCLUSION:(1)The body mass,body mass index,bone mineral density of the overall lumbar spine,muscle mass and appendicular skeletal muscle index were higher in the non-osteoporosis group than the osteoporosis group(P＜0.05).(2)Muscle mass was positively correlated with bone mineral density of the overall lumbar spine and individual vertebrae(P＜0.05).(3)Multiple stepwise linear regression analysis showed that body mass and grip strength were linearly and positively correlated with muscle mass;body height and muscle mass were linearly and positively correlated with grip strength,and body mass was linearly and negatively correlated with grip strength.Body mass index was linearly and positively correlated with bone mineral density,and age was linearly and negatively correlated with bone mineral density.(4)Analysis by receiver operating characteristic curve showed that:muscle mass(the area under the curve,sensitivity,specificity and critical value of muscle mass were 0.744,76.50％,74.20％and 36.50 kg,respectively,with P=0.002)and appendicular skeletal muscle index(the area under the curve,sensitivity,specificity and critical value of appendicular skeletal muscle index were 0.739,82.40％,62.10％and 5.81 kg/m2,respectively,and P=0.002)had good predictive value for postmenopausal osteoporosis.To conclude,a reduction in muscle mass and appendicular skeletal muscle index can help to predict the risk of postmenopausal osteoporosis,and the possibility of osteoporosis should be taken into account in postmenopausal women when muscle mass is＜36.50 kg or appendicular skeletal muscle index is＜5.81 kg/m2,in order to prevent the occurrence of postmenopausal osteoporosis.

Objective To explore the influencing factors of early neurological deterioration(END)in patients with acute anterior circulation large-vessel occlusive mild stroke who were treated with medications alone within 72 h after onset.Methods Retrospective consecutive data were collected of patients with acute large-vessel occlusive mild stroke who presented to the Advanced Stroke Center of Linyi People's Hospital within 24 h of onset from January 2021 to December 2022.END was defined as an increase of ≥ 4 points in the National Institutes of Health stroke scale(N1HSS)score within 72 h after onset compared to the admission score.Patients were divided into the neurological deterioration group and the stable condition group(NIHSS score did not increase or increased by 1-3 points within 72 h after onset compared to the admission score).Baseline and clinical data of all patients were collected,including sex,age,cerebrovascular disease risk factors(hypertension,diabetes mellitus,hyperlipidemia,coronary heart disease,atrial fibrillation,smoking,alcohol consumption,stroke history),NIHSS score at admission,time from onset to admission,systolic blood pressure at admission,diastolic blood pressure at admission,laboratory test indicators at admission(blood glucose,glycosylated hemoglobin,homocysteine,total cholesterol,triglyceride,low-density lipoprotein cholesterol,high-density lipoprotein cholesterol,neutrophils,lymphocytes and neutrophil-to-lymphocyte ratio),responsible occlusion artery(internal carotid artery,middle cerebral artery,anterior cerebral artery),affected cerebral hemisphere,collateral circulation score,and medications used within 72 h after admission(intravenous thrombolysis+dual antiplatelet therapy,tirofiban+dual antiplatelet therapy,argatroban+dual antiplatelet therapy,argatroban alone,dual antiplatelet therapy alone).Variables with statistically significant differences in univariate analysis were included in multivariate Logistic regression analysis to explore the independent influencing factors for END in patients with acute anterior circulation large-vessel occlusive mild stroke treated with medications alone.Results A total of 208 patients with acute anterior circulation large-vessel occlusive mild stroke were included,with 143 males and 65 females,aged 38-85 years,with an average age of(64±9)years.Among them,86 patients were in the neurological deterioration group and 122 in the stable condition group.(1)There were statistically significant differences between the neurological deterioration group and the stable condition group in terms of history of diabetes mellitus(39.5％[34/86]vs.17.2％[21/122]),smoking history(43.0％[37/86]vs.29.5％[36/122]),left cerebral hemisphere lesion(57.0％[49/86]vs.41.0％[50/122]),collateral circulation score(4[3,5]vs.5[4,5]),time from onset to admission(7.0[3.0,17.0]hvs.4.3[2.0,11.0]h),blood glucose at admission(7.4[5.8,10.0]mmol/L vs.6.7[5.8,7.7]mmol/L),neutrophil-to-lymphocyte ratio(3.8[2.4,5.1]vs.3.0[2.1,4.3]),dual antiplatelet therapy alone(19.8％[17/86]vs.6.6％[8/122]),and argatroban+dual antiplatelet therapy(8.1％[7/86]vs.29.5％[36/122];all P＜0.05).There were no statistically significant differences in the results of the remaining univariate analyses(all P＞0.05).(2)Multivariate Logistic regression analysis showed that diabetes mellitus(OR,2.674,95％CI 1.121-6.377,P=0.027)and left cerebral hemisphere vessel occlusion(OR,2.030,95％CI I.083-3.806,P=0.027)were independent risk factors for END in acute anterior circulation large-vessel occlusive mild stroke.Argatroban+dual antiplatelet therapy(OR,0.267,95％CI 0.116-0.613,P=0.002)and high collateral circulation score(OR,0.551,95％CI 0.368-0.824,P=0.004)were independent protective factors for END in acute anterior circulation large-vessel occlusive mild stroke.Conclusions Acute anterior circulation large-vessel occlusive mild stroke patients with diabetes mellitus or left cerebral hemisphere lesions are prone to END.The combination of argatroban and dual antiplatelet therapy and good collateral circulation can reduce the risk of END.

Objective To explore strategies for further subdivision of DRG in gastrointestinal surgery cases,providing references to enhance the differentiation of DRG subgroups.Methods A total of 5 108 gastrointestinal surgery cases were selected from a tertiary grade A hospital and a tertiary hospital in Hubei Province,spanning from January 2019 to June 30,2023,and another secondary hospital's data from 2020 and 2021.It employs single factor analysis and multiple linear regression analysis to identify factors influencing case costs.Additionally,the opinions of nine clinicans were gathered regarding factors affecting resource consumption in gastrointestinal surgery cases.The four selected case groups were further subdivided considers the peak characteristics of disease costs.It compares subdivided groups with the DRG Payment Subgroups Scheme(Version 2.0).Results Groups GB1,GB2,GC1,and GC2 were subdivided into 7,4,7,and 6 DRG groups,respectively.The coefficient of variation of each subdivided DRG were reduced,homogeneity was increased,and inter-group differentiation was increased.The results were consistent with the DRG Payment Subgroups Scheme(Version 2.0).Conclusion Based on DRG grouping,the DRG groups can be further subdivided according to the peak characteristics presented by case costs.This subdivision strategy is helpful to provide new ideas for case grouping of Medicare payment.

Objective To explore the influencing factors of early neurological deterioration(END)in patients with acute anterior circulation large-vessel occlusive mild stroke who were treated with medications alone within 72 h after onset.Methods Retrospective consecutive data were collected of patients with acute large-vessel occlusive mild stroke who presented to the Advanced Stroke Center of Linyi People's Hospital within 24 h of onset from January 2021 to December 2022.END was defined as an increase of ≥ 4 points in the National Institutes of Health stroke scale(N1HSS)score within 72 h after onset compared to the admission score.Patients were divided into the neurological deterioration group and the stable condition group(NIHSS score did not increase or increased by 1-3 points within 72 h after onset compared to the admission score).Baseline and clinical data of all patients were collected,including sex,age,cerebrovascular disease risk factors(hypertension,diabetes mellitus,hyperlipidemia,coronary heart disease,atrial fibrillation,smoking,alcohol consumption,stroke history),NIHSS score at admission,time from onset to admission,systolic blood pressure at admission,diastolic blood pressure at admission,laboratory test indicators at admission(blood glucose,glycosylated hemoglobin,homocysteine,total cholesterol,triglyceride,low-density lipoprotein cholesterol,high-density lipoprotein cholesterol,neutrophils,lymphocytes and neutrophil-to-lymphocyte ratio),responsible occlusion artery(internal carotid artery,middle cerebral artery,anterior cerebral artery),affected cerebral hemisphere,collateral circulation score,and medications used within 72 h after admission(intravenous thrombolysis+dual antiplatelet therapy,tirofiban+dual antiplatelet therapy,argatroban+dual antiplatelet therapy,argatroban alone,dual antiplatelet therapy alone).Variables with statistically significant differences in univariate analysis were included in multivariate Logistic regression analysis to explore the independent influencing factors for END in patients with acute anterior circulation large-vessel occlusive mild stroke treated with medications alone.Results A total of 208 patients with acute anterior circulation large-vessel occlusive mild stroke were included,with 143 males and 65 females,aged 38-85 years,with an average age of(64±9)years.Among them,86 patients were in the neurological deterioration group and 122 in the stable condition group.(1)There were statistically significant differences between the neurological deterioration group and the stable condition group in terms of history of diabetes mellitus(39.5％[34/86]vs.17.2％[21/122]),smoking history(43.0％[37/86]vs.29.5％[36/122]),left cerebral hemisphere lesion(57.0％[49/86]vs.41.0％[50/122]),collateral circulation score(4[3,5]vs.5[4,5]),time from onset to admission(7.0[3.0,17.0]hvs.4.3[2.0,11.0]h),blood glucose at admission(7.4[5.8,10.0]mmol/L vs.6.7[5.8,7.7]mmol/L),neutrophil-to-lymphocyte ratio(3.8[2.4,5.1]vs.3.0[2.1,4.3]),dual antiplatelet therapy alone(19.8％[17/86]vs.6.6％[8/122]),and argatroban+dual antiplatelet therapy(8.1％[7/86]vs.29.5％[36/122];all P＜0.05).There were no statistically significant differences in the results of the remaining univariate analyses(all P＞0.05).(2)Multivariate Logistic regression analysis showed that diabetes mellitus(OR,2.674,95％CI 1.121-6.377,P=0.027)and left cerebral hemisphere vessel occlusion(OR,2.030,95％CI I.083-3.806,P=0.027)were independent risk factors for END in acute anterior circulation large-vessel occlusive mild stroke.Argatroban+dual antiplatelet therapy(OR,0.267,95％CI 0.116-0.613,P=0.002)and high collateral circulation score(OR,0.551,95％CI 0.368-0.824,P=0.004)were independent protective factors for END in acute anterior circulation large-vessel occlusive mild stroke.Conclusions Acute anterior circulation large-vessel occlusive mild stroke patients with diabetes mellitus or left cerebral hemisphere lesions are prone to END.The combination of argatroban and dual antiplatelet therapy and good collateral circulation can reduce the risk of END.

Objective To explore strategies for further subdivision of DRG in gastrointestinal surgery cases,providing references to enhance the differentiation of DRG subgroups.Methods A total of 5 108 gastrointestinal surgery cases were selected from a tertiary grade A hospital and a tertiary hospital in Hubei Province,spanning from January 2019 to June 30,2023,and another secondary hospital's data from 2020 and 2021.It employs single factor analysis and multiple linear regression analysis to identify factors influencing case costs.Additionally,the opinions of nine clinicans were gathered regarding factors affecting resource consumption in gastrointestinal surgery cases.The four selected case groups were further subdivided considers the peak characteristics of disease costs.It compares subdivided groups with the DRG Payment Subgroups Scheme(Version 2.0).Results Groups GB1,GB2,GC1,and GC2 were subdivided into 7,4,7,and 6 DRG groups,respectively.The coefficient of variation of each subdivided DRG were reduced,homogeneity was increased,and inter-group differentiation was increased.The results were consistent with the DRG Payment Subgroups Scheme(Version 2.0).Conclusion Based on DRG grouping,the DRG groups can be further subdivided according to the peak characteristics presented by case costs.This subdivision strategy is helpful to provide new ideas for case grouping of Medicare payment.

Objective:To assess the capability of seven reference medical laboratories to detect BCR::ABL1 p210 transcription levels and to compare the results among those laboratories.Methods:The interlaboratory comparison was carried out in two stages. The samples were prepared by the reference laboratory. The quantitative values of BCR::ABL1 p210 of the comparison samples covered 0.001%-0.01%, 0.01%-0.1%, 0.1%-1%, 1%-10% and>10% in each stage. Real-time quantitative PCR (RT-PCR) and dPCR (digital PCR) were used to examine the samples. The conversion factor (CF) was calculated and validated for each laboratory.Results:In the RT-PCR comparison, one laboratory was failed to detect BCR::ABL1 p210 in fourteen samples at the first stage. The results of the other six laboratories were qualified with the bias <±1.2 folds (-0.133-0.338) and 95% limits of agreement within ±5 folds (upper limit 0.147-0.785, lower limit -0.770--0.109), and the corresponding CF values were calculated and validated. In the dPCR comparison, one laboratory did not report results at the second stage. The results of the other six laboratories were qualified with the bias <±1.2 folds (-0.026-0.267) and 95% limits of agreement within±5 folds (upper limit 0.084-0.991, lower limit -0.669--0.135), and the corresponding CF values were calculated and validated. The samples with BCR::ABL1 p210 quantitative values of 0.01%-0.1%, 0.1%-1%, 1%-10% and >10% could be detected by both RT-PCR and qPCR. When the quantitative value of BCR::ABL1 p210 was 0.001%-0.01%, the detection rate of dPCR was higher than that of RT-PCR (85.56% vs. 68.00%).Conclusions:A good consistency is present among various laboratories. The quantitative value of BCR::ABL1 p210 is comparable among laboratories as shown by the CF value conversion. For quantitative detection of BCR::ABL1 p210 deep molecular reaction, dPCR has a higher positive detection rate and more advantages than RT-PCR. To ensure the accuracy and reproducibility of the BCR::ABL1 p210 test, it is imperative for every laboratory to enhance their daily quality control practices.

Phage therapy is one of the most important tools for the treatment of infections with multi-drug resistant bacteria. Such phages are usually isolated from hospital effluents, however, no systematic study on the distribution of phages in hospital effluents has been conducted so far. The aim of this study was to isolate the corresponding phages of common pathogenic bacteria isolated in the clinic as hosts, so as to assess the ecological distribution of phages in hospital wastewater and to provide a reference for the isolation and application of phages of drug-resistant bacteria in the clinic. A cross-sectional study design was used in this study. The 125 pathogenic bacteria (belonging to 16 different strains) isolated from the clinical microbiology laboratory of Qilu Hospital of Shandong University from May to June 2023 were selected as the target strains, and the phages corresponding to these strains were isolated and purified from the hospital wastewater by using the double-layer plate sandwich method. At the same time, the distribution of pathogenic bacteria in the same batch of wastewater was analyzed with the help of mNGS sequencing technology, so as to preliminarily investigate the abundance correspondence between pathogenic bacteria and phages in wastewater. The results showed that a total of 56 phage strains were isolated from 125 clinical pathogens as hosts, corresponding to six pathogens, including Acinetobacter baumannii, Klebsiella pneumoniae, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Stenotrophomonas maltophilia. All six pathogenic bacteria contained strains with different degrees of drug resistance, with a higher percentage of multi-drug resistant strains in A. baumannii, Escherichia coli and P. aeruginosa. The phage acquisition rates of these six pathogens were, in descending order, Escherichia coli (80%), Stenotrophomonas maltophilia (75%), Pseudomonas aeruginosa (70%), Klebsiella pneumoniae (66.67%), Acinetobacter baumannii (36.36%) and Staphylococcus aureus (12.5%). Preliminary mNGS sequencing results showed that the pathogenic bacteria with higher abundance in the batch of effluent were Enterococcus faecalis, Klebsiella pneumoniae, Escherichia coli, Enterococcus faecalis, Acinetobacter baumannii, Klebsiella aerogenes, Klebsiella michiganensis and Pseudomonas aeruginosa. In conclusion, phages of most common clinical Gram-negative pathogens were isolated from hospital wastewater with high isolation rates; however, phages of Gram-positive pathogens were isolated at lower rates, and only phages corresponding to Staphylococcus aureus were isolated in this study. The corresponding mNGS sequencing results showed that the distribution of Gram-negative pathogens in sewage may had a positive correlation with the ecological distribution of phages.

Background::Adamantinomatous craniopharyngioma (ACP) is the commonest pediatric sellar tumor. No effective drug is available and interpatient heterogeneity is prominent. This study aimed to identify distinct molecular subgroups of ACP based on the multi-omics profiles, imaging findings, and histological features, in order to predict the response to anti-inflammatory treatment and immunotherapies.Methods::Totally 142 Chinese cases diagnosed with craniopharyngiomas were profiled, including 119 ACPs and 23 papillary craniopharyngiomas. Whole-exome sequencing (151 tumors, including recurrent ones), RNA sequencing (84 tumors), and DNA methylome profiling (95 tumors) were performed. Consensus clustering and non-negative matrix factorization were used for subgrouping, and Cox regression were utilized for prognostic evaluation, respectively.Results::Three distinct molecular subgroups were identified: WNT, ImA, and ImB. The WNT subgroup showed higher Wnt/β-catenin pathway activity, with a greater number of epithelial cells and more predominantly solid tumors. The ImA and ImB subgroups had activated inflammatory and interferon response pathways, with enhanced immune cell infiltration and more predominantly cystic tumors. Mitogen-activated protein kinases (MEK/MAPK) signaling was activated only in ImA samples, while IL-6 and epithelial-mesenchymal transition biomarkers were highly expressed in the ImB group, mostly consisting of children. The degree of astrogliosis was significantly elevated in the ImA group, with severe finger-like protrusions at the invasive front of the tumor. The molecular subgrouping was an independent prognostic factor, with the WNT group having longer event-free survival than ImB (Cox, P = 0.04). ImA/ImB cases were more likely to respond to immune checkpoint blockade (ICB) therapy than the WNT group ( P <0.01). In the preliminary screening of subtyping markers, CD38 was significantly downregulated in WNT compared with ImA and ImB ( P = 0.01). Conclusions::ACP comprises three molecular subtypes with distinct imaging and histological features. The prognosis of the WNT type is better than that of the ImB group, which is more likely to benefit from the ICB treatment.

Anterior cruciate ligament (ACL) injury of knee is a common sports injury.The hypofunc-tion of the knee joint appears after ACL injury,which seriously affects the overall stability,coordination and balance ability of the knee joint,meanwhile also increases the risk of ACL injury again.Proprioception training can not only enhance the balance ability of the knee joint,but also enhance the control ability of the knee joint.This article reviews the changes of proprioception after ACL injury and the related contents of proprioception rehabilitation after ACL injury in order to provide reference for further improving the functional recovery of the patients with ACL injury.