One of the basic questions in the aging field is whether there is a fundamental difference between the aging of lower invertebrates and mammals. A major difference between the lower invertebrates and mammals is the abundancy of noncoding RNAs, most of which are not conserved. We have previously identified a noncoding RNA Terc-53 that is derived from the RNA component of telomerase Terc. To study its physiological functions, we generated two transgenic mouse models overexpressing the RNA in wild-type and early-aging Terc-/- backgrounds. Terc-53 mice showed age-related cognition decline and shortened life span, even though no developmental defects or physiological abnormality at an early age was observed, indicating its involvement in normal aging of mammals. Subsequent mechanistic study identified hyaluronan-mediated motility receptor (Hmmr) as the main effector of Terc-53. Terc-53 mediates the degradation of Hmmr, leading to an increase of inflammation in the affected tissues, accelerating organismal aging. adeno-associated virus delivered supplementation of Hmmr in the hippocampus reversed the cognition decline in Terc-53 transgenic mice. Neither Terc-53 nor Hmmr has homologs in C. elegans. Neither do arthropods express hyaluronan. These findings demonstrate the complexity of aging in mammals and open new paths for exploring noncoding RNA and Hmmr as means of treating age-related physical debilities and improving healthspan.
Animals ; Mice ; RNA, Untranslated/metabolism* ; Aging/genetics* ; Mice, Transgenic ; Telomerase/metabolism* ; RNA/genetics* ; Hippocampus/metabolism* ; Humans ; Mice, Inbred C57BL

Objective To investigate the impact of nursing interventions based on Kales conceptual model on agitated behaviours of dementia patients.Methods A total of 80 dementia patients were randomly divided into two groups using a random number table.Patients in the control group(n=40)received routine care,while those in the observation group(n=40)received the nursing interventions based on Kales concept model on top of the routine care.The agitated behaviours and quality of life of the two groups were compared before,2 weeks and 4 weeks after the intervention.Results The repeated measures ANOVA showed statistically significant differences in three time points in terms of the time effect,inter-group effect and interactive effects on the scores of agitations and quality of life(all P<0.05).After the intervention,the score of agitations in the observation group was significantly lower than that of the control group(P<0.05),and the score of quality of life in the observation group was significantly higher than that in the control group(P<0.05).Conclusion The nursing interventions based on Kales conceptual model is effective in reducing agitations of dementia patients and improving the quality of life.

Objective:To evaluate the clinical application value of iohexol plasma clearance assay in assessing glomerular filtration rate (GFR) in patients with chronic kidney disease (CKD), and identify alternative methods of 99mTc-diethylene triamine pentaacetic acid renal kinetic imaging (Gates) method for measuring GFR ( 99mTc-mGFR). Methods:It was a cross-sectional study. The CKD patients hospitalized in the Department of Nephrology at the Second Affiliated Hospital of Nanjing Medical University between October 2022 and September 2023 were enrolled. Iohexol plasma clearance was determined by collecting blood samples at 2 and 4 hours after intravenous administration of 5 ml iohexol, and high performance liquid chromatography was used to measure the plasma concentration of iohexol. Br?chner-Mortensen and Jacobsson formulas were used to calculate the double and single plasma iohexol clearance, respectively. CKD-epidemiology collaboration equation based on serum creatinine concentration was used to calculate the estimated GFR (eGFR). Pearson's coefficient was performed to analyze the correlation of iohexol dual plasma clearance assay-measured GFR (iohexol-DS-mGFR), iohexol single plasma 4 hours clearance assay-measured GFR (iohexol-SS 4h-mGFR), iohexol single plasma 2 hours clearance assay-measured GFR (iohexol-SS 2h-mGFR) and eGFR with 99mTc-mGFR as the gold standard. Bland-Altman analysis, 95% limits of agreement, and intra-correlation coefficient were used to compare the diagnostic concordance of Iohexol-DS-mGFR, Iohexol-SS 4h-mGFR, Iohexol-SS 2h-mGFR and eGFR with 99mTc-mGFR. Results:The study enrolled 64 CKD patients, aged (58.91±13.08) years old, comprising of 38 males and 26 females. The distribution of patients across CKD stages based on 99Tc-mGFR was as follows: 12 patients (18.8%) in stage 1, 14 patients (21.9%) in stage 2, 26 patients (40.6%) in stage 3, 10 patients (15.6%) in stage 4, and 2 patients (3.1%) in stage 5. The Pearson correlation analysis revealed that the correlation coefficients of iohexol-DS-mGFR, iohexol-SS 4h-mGFR, iohexol-SS 2h-mGFR and eGFR with 99mTc-mGFR were 0.925, 0.867, 0.820 and 0.894 (all P<0.001), respectively. The median deviation of absolute value of iohexol-DS-mGFR, iohexol-SS 4h-mGFR, iohexol-SS 2h-mGFR and eGFR in the total study population were 6.66, 9.63, 11.47 and 9.59 ml·min -1·(1.73 m 2) -1, respectively. The proportions of iohexol-DS-mGFR, iohexol-SS 4h-mGFR, iohexol-SS 2h-mGFR and eGFR located in the gold-standard GFR ± 10% interval (P10) were 35.9%, 29.7%, 26.6% and 29.7%, respectively, and the proportions located in the gold-standard GFR ± 30% interval ( P30 ) were 87.5%, 68.8%, 60.9% and 73.4%, respectively. Conclusions:Iohexol dual plasma clearance is well correlated and consistent with 99mTc-mGFR. It is a safe and easy alternative to isotope 99mTc-mGFR for clinical use in determining GFR.

Objective:To explore the professional quality learning needs among nursing students in colleges and universities in China under the background of the five educations.Methods:Convenience sampling was used to select nursing students who interned at Chinese Academy of Medical Sciences & Peking Union Medical College Hospital in 2021 as the research subject. The survey was conducted using a self-made "Professional Quality Learning Needs among Nursing Students in Colleges and Universities ". Multiple linear regression was used to explore the influencing factors of nursing students' professional quality learning needs. A total of 349 questionnaires were distributed, and 348 valid questionnaires were collected, with an effective recovery rate of 99.7%.Results:Among 348 nursing students, the five items with the highest need for professional quality learning were basic nursing skills, correct implementation of nursing procedures, communicating with patients and their families in appropriate ways, understanding of patient safety related concepts and nursing professional knowledge. Academic degree was a factor that affected the professional quality learning needs among nursing students ( P<0.05) . Conclusions:The training of nursing students' professional quality should be need oriented and establish a new era of "five education" concept. It should not only meet job requirements, but also combine students' own characteristics and growth patterns to cultivate nursing talents that meet clinical needs.

Objective:To investigate the evaluation value of one-stop whole-brain dynamic volume CT angiography and CT perfusion imaging (CTA-CTP) in the cynomolgus monkeys models of middle cerebral artery occlusion (MCAO).Methods:Ten adult cynomolgus monkeys were selected and examined by head and neck CTA-CTP and craniocerebral MRI to rule out craniocerebral space-occupying lesions or cerebrovascular malformation. Under guidance of digital substraction angiography (DSA), the right femoral artery was dissected and monkey autologous thrombosis was injected into the right middle cerebral artery (MCA) through microcatheter to prepare MCAO models. Whole brain DSA was performed intraoperatively to observe whether the model was successfully prepared, and head and neck CTA-CTP was performed 24 h and 7 d after modeling to determine the locations and brain blood flow changes of ischemic lesions. The monkeys were sacrificed 8 d after modeling, and the brain tissues were stained with 2,3,5-triphenyltetrazolium chloride (TTC).Results:Among the 10 cynomolgus monkeys, one was excluded because of preoperative cerebrovascular malformation, and one died of cerebral hernia caused by cerebral hemorrhage during the experiment. The remaining 8 MCAO models were successfully prepared. Intraoperative DSA orthography showed unclear M1 segment and distal branch of MCA. Brain CT scan 24 h and 7 d after modeling showed obvious cerebral ischemic lesions in the right MCA blood supply area, and the infarct extent 7 d after surgery was more obvious than that 24 h after surgery. CTA examination showed obvious blood flow interruption imaging in the in M1 segment of MCA on the right side, the distal vessels were not clearly displayed and the distal branches of the infarct side 7 d after surgery were obvious decreased as compared with those 24 h after surgery. CTP scan showed that the cerebral blood volume of the right cerebrum was obviously reduced as compared with that of the left cerebrum, which was consistent with the blood supply area of MCA; and the infarct cores and penumbra areas 7 d after surgery were obvious increased as compared with those 24 h after surgery. TTC staining showed that the ischemic lesions of the brain tissue on the slices were gray and involved multiple layers, and the range was roughly consistent with the infarction sites shown by DSA and CT imaging.Conclusion:One-stop whole brain dynamic volume CTA-CTP has good evaluation value in imaging findings in MCAO animal models.

Objective:To investigate the predictive value of neutrophil-lymphocyte ratio (NLR) for Trousseau’s syndrome (TS) in patients with acute multiple cerebral infarctions (AMCI).Methods:The patients with AMCI in Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine from July 2013 to March 2022 were retrospectively enrolled. The demographic and baseline clinical data of patients with TS and those without TS were compared. Multivariate logistic regression analysis was used to determine the independent influencing factors of TS-AMCI, and receiver operating characteristic (ROC) curve was used to evaluate the predictive value of NLR for TS-AMCI. Results:A total of 59 patients with AMCI were enrolled, including 43 males and 16 females, aged 64.9±14.0 years. There were 16 patients in the TS-AMCI group and 43 in the non-TS-AMCI group. The proportions of patients with diabetes mellitus, hypertension and previous stroke or transient ischemic attack in the TS-AMCI group were significantly lower than those in the non-TS-AMCI group (all P<0.05), while the proportion of patients with ischemic heart disease were significantly higher than that in the non-TS-AMCI group ( P<0.05). The proportion of patients with bilateral infarction in the TS-AMCI group was significantly higher than that in the non-TS-AMCI group ( P<0.001). The D-dimer, NLR, white blood cell count, neutrophil count, monocyte count, percentage of neutrophils, total cholesterol and low-density lipoprotein cholesterol in the TS-AMCI group were significantly higher than those in the non-TS-AMCI group (all P<0.001), while the lymphocyte count, lymphocyte percentage, red blood cell count, hemoglobin and hematocrit were significantly lower than those in the non-TS-AMCI group (all P<0.001). Multivariate logistic regression analysis showed that high NLR was an independent predictor of TS-AMCI (odds ratio [ OR] 2.897, 95% confidence interval [ CI] 1.270-6.527; P=0.011), while high hemoglobin was independently negatively correlated with TS-AMCI ( OR 0.839, 95% CI 0.723-0.975; P=0.022). ROC curve analysis showed that the area under the curve of NLR for predicting TS-AMCI was 0.929 (95% CI 0.831-0.979; P<0.001). When the NLR cutoff value was 4.01, the corresponding Youden index was 0.744. At this time, the sensitivity and specificity were 100% and 74.42% respectively. Conclusion:NLR has high predictive value for TS-AMCI.

Objective:To establish the norm of the Chinese version of Karitane Parenting Confidence Scale (KPCS) in urban areas of China.Methods:From August to December 2017, the parents of 2 216 children (<36 months old) were selected from 15 cities (Beijing, Lianyungang, Hangzhou, Chengdu, Xi′an, Guangzhou, Changsha, Jinan, Guiyang, Ningbo, Dalian, Qinhuangdao, Maanshan, Chongqing and Wuhan) in 14 provinces by stratified random sampling. The general demographic characteristics and parents′ parenting confidence were collected by a self-made questionnaire and KPCS Chinese version. The percentile norm was established. P 3, P10 and P 25 were used as the criteria to define the degree of lack of parenting confidence. Results:The age of mothers was (30.67±4.29). The age of the father was (32.50±4.99) years old. There were 726 (32.76%), 759 (34.25%) and 731 (32.99%) infants in 6-12, 12-23 and 24-35 months old groups. The total scores of P 50, P 25, P 10 and P 3 of KPCS (Chinese version) of infant parents in urban areas in China were 41, 38, 33, and 29 respectively. When the scores of parents were 34-37, 30-33, and ≤ 29, they were judged as mild, moderate, and severe lack of parenting confidence. There was no significant difference in the Chinese version of KPCS between parents of different age groups and parents of different gender (χ2=3.53, P=0.171; χ2=1.41, P=0.236). Each factor score≤ P 3 is defined as the boundary score, and the corresponding boundary scores of "parenting" "support" and "competence" were 13, 9, and 5 respectively. Conclusion:The Chinese version of KPCS can be used to assess the parenting confidence of infants in urban areas of China. It can used as one of the bases for scientific and objective evaluation of the parenting status of families.

Objective:To establish the norm of the Chinese version of Karitane Parenting Confidence Scale (KPCS) in urban areas of China.Methods:From August to December 2017, the parents of 2 216 children (<36 months old) were selected from 15 cities (Beijing, Lianyungang, Hangzhou, Chengdu, Xi′an, Guangzhou, Changsha, Jinan, Guiyang, Ningbo, Dalian, Qinhuangdao, Maanshan, Chongqing and Wuhan) in 14 provinces by stratified random sampling. The general demographic characteristics and parents′ parenting confidence were collected by a self-made questionnaire and KPCS Chinese version. The percentile norm was established. P 3, P10 and P 25 were used as the criteria to define the degree of lack of parenting confidence. Results:The age of mothers was (30.67±4.29). The age of the father was (32.50±4.99) years old. There were 726 (32.76%), 759 (34.25%) and 731 (32.99%) infants in 6-12, 12-23 and 24-35 months old groups. The total scores of P 50, P 25, P 10 and P 3 of KPCS (Chinese version) of infant parents in urban areas in China were 41, 38, 33, and 29 respectively. When the scores of parents were 34-37, 30-33, and ≤ 29, they were judged as mild, moderate, and severe lack of parenting confidence. There was no significant difference in the Chinese version of KPCS between parents of different age groups and parents of different gender (χ2=3.53, P=0.171; χ2=1.41, P=0.236). Each factor score≤ P 3 is defined as the boundary score, and the corresponding boundary scores of "parenting" "support" and "competence" were 13, 9, and 5 respectively. Conclusion:The Chinese version of KPCS can be used to assess the parenting confidence of infants in urban areas of China. It can used as one of the bases for scientific and objective evaluation of the parenting status of families.

Objective To evaluate the effectiveness of family-centered educational intervention on fall prevention knowledge and attitude,compliance and fall incidence of elderly inpatients. Methods A total of 300 elderly inpatients were selected in a first-class grade A hospital in Beijing and divided into the experiment group and the control group equally.The intervention group was given family-centered educational intervention for 6 months,while the control group was given conventional treatment and care in ward.The knowledge and attitude,compliance and the incidence of falls of elderly inpatients were evaluated at discharge and 3 months,6 months after discharge. Results The knowledge and attitude, compliance of elderly inpatients in the intervention group were significantly better than that in the control group (P<0.05).The incidence of falls in the intervention group was significantly lower than that in the control group at discharge and 3 months,6 months after discharge (P<0.05). Conclusions The family-centered educational intervention can enhance the fall prevention knowledge, attitude and compliance of elderly inpatients effectively and reduce the incidence rate of falls.The long-term effect is relatively obvious.

Objective: To explore the relationship between physiological parameters changes and severe heatstroke induced by 5-km armed cross-country training. Methods: A total of 521 male officers and soldiers from a special team who participated in the summer training of 5-km armed cross-country training from year 2016 to 2017 were enrolled. All trainees participated in 5-km armed cross-country training in high temperature and humidity environment of ambient temperature > 32 ℃and (or) relative humidity > 65%. The trainees were divided into two groups according to the incidence of severe heatstroke in the course of training. The age, enlistment time, constitution score, body mass index (BMI), external environment (ambient temperature, relative humidity, wind speed, heat index) of trainees of the two groups, and the change rates of arterial blood oxygen saturation (SaO₂), body temperature, pulse and blood pressure within 5 minutes after the 5-km armed cross-country training were compared between the two groups. The risk factors of severe heatstroke were screened by two classified Logistic regression analysis, and the predictive value of various risk factors of severe heatstroke was analyzed by the receiver operator characteristic curve (ROC). Results: In 521 trainees of 5-km armed cross-country training, 29 trainees suffered from severe heatstroke accounting for 5.57%. There was no significant difference in the age, enlistment time, constitution score, BMI, or external environment during 5-km armed cross-country training between severe heatstroke group and non-severe heatstroke group. Compared with those without severe heatstroke, the descending rates of body temperature, pulse, blood pressure and SaO₂ increased rate within 5 minutes after 5-km armed cross-country training of severe heatstroke trainees were significantly decreased [temperature descending rate: (0.67±0.30)% vs. (1.43±1.28)%, pulse descending rate: (7.53±5.21)% vs. (13.48±8.07)%, blood pressure descending rate: (9.28±6.84)% vs. (19.42±7.73)%, SaO₂ increased rate: (0.51±0.39)% vs. (1.50±1.43)%, all P < 0.01]. Two classification Logistic regression analysis showed that the temperature descending rate [odds ratio (OR) = 0.485, 95% confidence interval (95%CI) = 0.289-0.817], pulse descending rate (OR = 0.903, 95%CI = 0.845-0.965), blood pressure descending rate (OR = 0.841, 95%CI = 0.790-0.896), and SaO₂ increased rate (OR = 0.421, 95%CI = 0.250-0.711) were the risk factors for severe heatstroke during 5-km armed cross-country training (all P < 0.01). ROC curve analysis showed that temperature descending rate [area under ROC curve (AUC) = 0.659, 95%CI = 0.604-0.714], pulse descending rate (AUC = 0.730, 95%CI = 0.762-0.900), blood pressure descending rate (AUC = 0.831, 95%CI = 0.659-0.801), SaO₂ increased rate (AUC = 0.711, 95%CI = 0.655-0.767) could be used for the incidence of severe heatstroke prediction during 5-km armed cross-country training (all P < 0.01), and the predicted value was the same. Conclusions Under the same conditions, the severe heatstroke during 5-km cross-country training is closely related to the descending rates of body temperature, pulse, and blood pressure as well as SaO₂ increased rate within 5 minutes after the training, whose predictive values for severe heatstroke were the same.