Objective: To develop a simple digital chylous plasma device and validate its ability to accurately, standardly, and non-destructively determine chylous plasma in blood banks and clinical transfusions in hospitals. Methods: A digital chylous plasma assessment device was designed and manufactured. This device was used to measure the chylous degrees of chylous plasma samples before freezing, after freeze-thawing, before viral inactivation, and after viral inactivation. The measured chylosity index values were categorized according to the requirements specified in Appendix A of the Chinese national standard GB 18469-2001 "Quality Requirements for Whole Blood and Blood Components". This process established a digital standard for chylous plasma, enabling the identification of severe, moderate and mild chylous plasma, and non-chylous plasma. Results: The initial simple product of the digital chylous assessment device was successfully designed and manufactured. There was no significant difference in the degree of chylous plasma between pre-freezing 468.11±217.73 lux and post-thawing 538.91±273.39 lux of chylous plasma (P>0.05), or between pre-viral inactivation 858.33±387.79 lux and post-viral inactivation 928.33±166.51 lux of chylous plasma (P>0.05). The median of chylous degree values for plasma chylous index grades 0 to 6 were 45 lux, 250 lux, 620 lux, 835 lux, 1 130 lux, 1 390 lux, and 1 700 lux, respectively. The defined cutoff values/ranges for the chylous degree values corresponding to plasma chylous index grade 0 to 6 were ≤125 lux, 126-465 lux, 466-740 lux, 741-1 000 lux, 1 001-1 233 lux, 1 234-1 560 lux, and ≥1 561 lux. Conclusion: This study successfully developed the initial product of the digital chylous device and established digital standards for classifying chylous plasma. The device demonstrates the potential to meet the needs for assessment of chylous plasma in both blood banks and clinical transfusions in hospitals, thereby promoting the development and application of standardized, non-destructive chylous plasma assessment technology.

BACKGROUND:The maximum muscle strength is typically used for evaluating the recovery of muscle function after anterior cruciate ligament reconstruction.Recent studies have suggested that neuromuscular function should also be considered,such as rate of force development,which measures the slope of the force time curve at different time intervals under conditions of isometric muscle contraction. OBJECTIVE:To elaborate on the current research status and shortcomings of muscle isometric rate of force development in patients undergoing anterior cruciate ligament reconstruction surgery,and analyze the degree of defects in quadriceps femoris and hamstring isometric rate of force development at different times after surgery;to analyze the effect of isometric rate of force development on postoperative functional performance,thereby providing important information for optimizing postoperative rehabilitation following anterior cruciate ligament reconstruction,reducing secondary injury to patients,and reducing the incidence of knee osteoarthritis. METHODS:Literature retrieval of CNKI,VIP,WanFang and PubMed was performed using"anterior cruciate ligament,rate of force development"as Chinese search terms and"anterior cruciate ligament,rate of force development,rate of torque development"as English search terms.Finally,69 articles were included according to inclusion and exclusion criteria. RESULTS AND CONCLUSION:Most studies have found defects in bilateral muscle isometric rate of force development in patients undergoing anterior cruciate ligament reconstruction within 6 months.Early isometric rate of force development of the bilateral hamstring muscles(i.e.the slope of the force time curve at any time interval during muscle contraction of 100 ms)showed significant improvement after 6 months.However,long-term defects in early isometric rate of force development of the bilateral quadriceps indicate long-term damage to the neuromuscular function of the quadriceps after surgery.There is limited research on late isometric rate of force development(the slope of the force time curve at any time interval after 100 ms of muscle contraction),and conclusions cannot be drawn.Regarding landing exercises(jumping to the ground,lateral cutting,etc.)and daily activities(walking,running),early isometric rate of force development of the quadriceps is more correlated with isometric peak torque.Abnormal biomechanical changes during exercise are considered an important risk factor for secondary injury and traumatic knee osteoarthritis in patients.Actively improving early isometric rate of force development of the quadriceps may reduce the incidence of secondary injury and traumatic knee osteoarthritis.Currently,there is limited evidence to suggest that whole-body vibration training can improve early isometric rate of force development of the quadriceps femoris in patients undergoing anterior cruciate ligament reconstruction.It is recommended to use neuromuscular electrical stimulation to intervene in the quadriceps and hamstring in the early postoperative stage and implement explosive force and high resistance training in the late postoperative stage,which may improve the isometric rate of force development in patients.Generating sufficient muscle strength in a short period of time is necessary to effectively protect the anterior cruciate ligament,while the relationship between isometric rate of force development in the hamstring muscle and functional performance is still unclear,which may provide information on preventing secondary injury in patients.It is recommended to use the isometric rate of force development as one of the evaluation indicators for guiding rehabilitation and restoring movement.In addition to focusing on improving symmetry and differences from normal individuals,the hamstring to quadriceps strength ratio should also be considered.An appropriate range of ratios can ensure the balance of muscles during rapid muscle exertion,which may reduce the occurrence of secondary injuries.However,the normal range of ratios is not yet clear.Future research should consider the effects of graft type and knee flexion angle on isometric rate of force development,in order to identify neuromuscular dysfunction in patients as much as possible and help them recover better.

Objective:To evaluate the impact of preemptive analgesia with ibuprofen on postoperative pain following the extraction of impacted mandibular third molars in a Chinese population, aiming to provide a clinical reference for its application.Methods:This multicenter, randomized, double-blind, placebo-controlled parallel-group trial was conducted from April 2022 to October 2023 at the Capital Medical University School of Stomatology (40 cases), Beijing TianTan Hospital, Capital Medical University (22 cases), and Beijing Chao-Yang Hospital, Capital Medical University (20 cases). It included 82 patients with impacted mandibular third molars, with 41 in the ibuprofen group and 41 in the control group. Participants in the ibuprofen group received 300 mg of sustained-release ibuprofen capsules orally 15 min before surgery, while the control group received a placebo. Both groups were instructed to take sustained-release ibuprofen capsules as planned for 3 days post-surgery. Pain intensity was measured using the numerical rating scale at 30 min, 4 h, 6 h, 8 h, 24 h, 48 h, and 72 h after surgery, and the use of additional analgesic medication was recorded during days 4 to 6 postoperatively.Results:All 82 patients completed the study according to the protocol. No adverse events such as nausea, vomiting, or allergies were reported in either group during the trial. The ibuprofen group exhibited significantly lower pain scores at 4 h [2.0 (1.0, 4.0) vs. 4.0 (3.0, 5.0)] ( Z=-3.73, P<0.001), 6 h [2.0 (1.0, 4.0) vs. 5.0(2.5, 6.0)] ( Z=-3.38, P<0.001), and 8 h [2.0 (1.0, 4.0) vs. 5.0 (2.0, 6.0)] ( Z=-2.11, P=0.035) postoperatively compared to the control group. There were no statistically significant differences in pain scores between the groups at 30 min, 24 h, 48 h, and 72 h postoperatively ( P>0.05). Additionally, 11 out of 41 patients (26.8%) in the ibuprofen group and 23 out of 41 patients (56.1%) in the control group required extra analgesic medication between days 4 and 6 post-surgery, with the ibuprofen group taking significantly fewer additional pills [0.0 (0.0, 1.0) vs. 1.0 (0.0, 3.0)] ( Z=-2.81, P=0.005). Conclusions:A pain management regimen involving 300 mg of oral sustained-release ibuprofen capsules administered 15 minutes before surgery and continued for 3 d postoperatively effectively reduces pain levels and the total amount of analgesic medication used after the extraction of impacted mandibular third molars. Considering its efficacy, safety, and cost-effectiveness, ibuprofen is recommended as a first-line drug for perioperative pain management, enhancing patient comfort during diagnosis and treatment in a feasible manner.

Objective:To explore the relationship between olfactory dysfunction and mild cognitive impairment (MCI) among elderly people in the community so as to provide a reference for screening and risk factor management of the MCI population.Methods:From March to June 2023, elderly individuals from Donghuashi and Fangzhuang communities in Beijing were selected as the study subjects by convenience sampling. Study subjects were surveyed using the General Information Questionnaire, Mini-Mental State Examination, Montreal Cognitive Assessment, Barthel Index, Sniffin' Sticks Test, 7-item Generalized Anxiety Disorder Scale, and 15-item Geriatric Depression Scale. Binary logistic regression was used to analyze the factors that influence MCI among elderly people in the community.Results:A total of 252 questionnaires were distributed and 243 valid questionnaires were collected, with an effective response rate of 96.4% (243/252). Among 243 elderly people in the community, 75 experienced MCI, with an incidence of 30.9% (75/243). Binary Logistic regression analysis showed that the probability of MCI in elderly people with olfactory dysfunctions was 1.979 times that in elderly people without olfactory dysfunctions and age, previous occupational type and frequency of mental activity were the influencing factors for the occurrence of MCI ( P<0.05) . Conclusions:The incidence of MCI is high among elderly people in the community, especially those with olfactory dysfunctions. Nursing staff should pay attention to the role of olfactory dysfunction in cognitive function screening and risk factor management.

Objective:To construct a parallel mediation model from the perspective of symptom clusters to verify the mediating effect of sleep disorders and depression in the relationship between pain and fatigue in elderly malignant tumor patients, and explore the pathways and relationships of the internal symptoms of fatigue associated symptom clusters.Methods:From January to April 2022, convenience sampling was used to select 312 elderly patients with malignant tumors from Beijing Hospital as respondents. General Information Questionnaire, Numerical Rating Scale, Pittsburgh Sleep Quality Index, Hospital Anxiety and Depression Scale, and Cancer Fatigue Scale were used for measurement. Spearman correlation was used to explore the correlation between pain, fatigue, depression, and sleep disorders, AMOS 24.0 was used to construct a parallel mediation model, and Bootstrap method was used to test the mediating effect.Results:A total of 312 questionnaires were distributed, and 305 valid questionnaires were collected, with an effective response rate of 97.76%. Pain of elderly patients with malignant tumors was positively correlated with fatigue ( r=0.436, P<0.01), sleep disorders ( r=0.316, P<0.01), and depression ( r=0.315, P<0.01), sleep disorders were positively correlated with fatigue ( r=0.491, P<0.01), and depression and fatigue were positively correlated ( r=0.587, P<0.01). The mediation model included two pathways: sleep disorders and depression partially mediated the relationship between pain and fatigue, accounting for 40.63% (0.221) and 14.89% (0.081) of the total effect (0.544), respectively. The total mediating effect was 55.51%, which was higher than the direct effect of 44.49%. Conclusions:There is a parallel mediating effect of pain-sleep disorder-depression-fatigue within the fatigue associated symptom cluster (pain, sleep disorders, depression, fatigue) in elderly malignant tumor patients. Medical and nursing staff can alleviate fatigue symptoms by improving the patient's pain condition and reducing their sleep disorders and depression symptoms.

Objective:To carry out a scoping review on characteristics and effects of intervention program for promoting motor behavior among older adults in the community based on transtheoretical model (TTM), so as to explore the mechanism and connotation of TTM guiding strategy selection in the intervention program.Methods:The literature on the intervention program for promoting motor behavior among older adults in the community based on TTM was systematically searched in PubMed, Embase, CINAHL, Cochrane Library, PsycINFO, China National Knowledge Infrastructure and Wanfang Data. The search period was from database establishment to October 11, 2023. Two researchers conducted a summary and data analysis of the included literature.Results:A total of 15 articles were included, and the intervention framework included two types according to behavior change stages and behavior change patterns. The intervention strategy mainly included 17 items, such as emphasizing the benefits of exercise and drawbacks of no-exercise, establishing family support relationships, sharing exemplary experiences, rewarding, setting reminders, and signing commitments. The intervention strategies mainly involved 14 forms such as health lectures, one-on-one communication, exercise commitment letters, exercise logs, group communication meetings, and material/honor. The outcome measures consisted of feasibility (safety, retention, attendance, satisfaction) and effectiveness (exercise compliance, behavioral stage changes, physical function, self-efficacy, decision balance and so on) .Conclusions:The stages of change in TTM can guide the design of intervention frameworks for promoting motor behavior among older adults in the community, and the change program can guide the intervention strategies and design of application forms. The characteristic of the TTM based intervention program for promoting motor behavior among older adults in the community is that it contains intervention strategies that are suitable for each stage of behavior, and has short-term effectiveness and feasibility in terms of results. It is necessary to further clarify the details of the intervention program to explore its long-term effectiveness, and conduct follow-up.

Objective:To conduct a scoping review on gamified exercise interventions for elderly patients with cognitive impairment to provide insights for the application of gamification design in exercise programs for this population.Methods:Guided by the scoping review framework proposed by Arksey and O'Malley, a systematic search was conducted in databases including China National Knowledge Infrastructure, Wanfang, VIP, SinoMed, PubMed, Cochrane Library, CINAHL, Web of Science, Scopus, ProQuest, and Wiley Online Library. The search covered the period from the establishment of the databases to June 12, 2024. An integrative analysis was performed on the included literature.Results:A total of 12 studies were included. The most commonly used gamification elements were achievement- and progress-oriented features, while the most frequently applied behavior change theories were behavior change techniques and social cognitive theory.Conclusions:Gamification-based exercise interventions can improve adherence to exercise programs in elderly patients with cognitive impairment, promote physical activity, and enhance cognitive function. Future research should focus on combining various theories with different gamification elements to encourage proactive exercise behavior in elderly individuals with cognitive impairment.

OBJECTIVE: To investigate the effect of hyperbaric oxygen (HBO) on paroxysmal sympathetic hyperexcitation (PSH) after brain injury. METHODS: A multicenter retrospective study was conducted. Fifty-six patients with PSH who received HBO treatment from four hospitals in Henan Province from January 2021 to September 2023 were selected as the HBO group, and 36 patients with PSH who did not receive HBO treatment from Zhengzhou People's Hospital from May 2018 to December 2020 were selected as the control group. PSH assessment measure (PSH-AM) score [clinical feature scale (CFS) score+diagnostic likelihood tool (DLT) score] and Glasgow coma scale (GCS) were compared before and after HBO treatment, and between HBO group and control group to evaluate the effect of HBO treatment on prognosis of PSH patients. RESULTS: There were no statistically significant differences in age, gender, PSH etiology, GCS score, time from onset to occurrence of PSH, CFS score, CFS+DLT score and frequency of PSH episodes between the two groups, indicating comparability. The duration of HBO treatment ranged from 3 to 11 days for 56 patients receiving HBO treatment, and the duration of HBO treatment ranged from 3 to 5 courses. Compared with before treatment, after HBO treatment, PSH symptoms in HBO patients were significantly relieved (body temperature increase: 14.29% vs. 64.29%, heart rate increase: 25.00% vs. 98.21%, shortness of breath: 14.29% vs. 76.79%, blood pressure increase: 8.93% vs. 85.71%, sweating: 10.71% vs. 85.71%, muscle tone increased: 19.64% vs. 75.00%, all P < 0.05), CFS+DLT score decreased significantly (16.90±4.81 vs. 22.12±3.12, P < 0.01), GCS score improved (12.31±5.34 vs. 5.95±2.18, P < 0.01). After 30 days of hospitalization, compared with the control group, PSH symptoms in the HBO group were improved (body temperature increase: 14.29% vs. 19.44%, heart rate increase: 19.64% vs. 25.00%, shortness of breath: 10.71% vs. 27.78%, blood pressure increase: 7.14% vs. 22.22%, sweating: 8.93% vs. 25.00%, muscle tone increased: 19.64% vs. 38.89%, all P < 0.05 except body temperature increase), CFS+DLT score decreased (16.90±3.81 vs. 19.98±4.89, P < 0.05), GCS score increased (14.12±4.12 vs. 12.31±4.14, P < 0.01), the length of intensive care unit (ICU) stay was shortened (days: 18.01±5.67 vs. 24.93±8.33, P < 0.01). CONCLUSIONS HBO treatment can significantly relieve the symptoms of patients with PSH after brain injury and provide a new idea for the treatment of PSH patients.
Humans ; Hyperbaric Oxygenation/methods* ; Retrospective Studies ; Brain Injuries/therapy* ; Female ; Male ; Prognosis ; Glasgow Coma Scale ; Autonomic Nervous System Diseases/etiology*

OBJECTIVES: Ozone is widely applied to treat allergic skin diseases such as eczema, atopic dermatitis, and contact dermatitis. However, the specific mechanism remains unclear. This study aims to investigate the effects of ozonated oil on treating 2,4-dinitrochlorobenzene (DNCB)-induced allergic contact dermatitis (ACD) and the underling mechanisms. METHODS: Besides the blank control (Ctrl) group, all other mice were treated with DNCB to establish an ACD-like mouse model and were randomized into following groups: a model group, a basal oil group, an ozonated oil group, a FcεRI-overexpressed plasmid (FcεRI-OE) group, and a FcεRI empty plasmid (FcεRI-NC) group. The basal oil group and the ozonated oil group were treated with basal oil and ozonated oil, respectively. The FcεRI-OE group and the FcεRI-NC group were intradermally injected 25 µg FcεRI overexpression plasmid and 25 µg FcεRI empty plasmid when treating with ozonated oil, respectively. We recorded skin lesions daily and used reflectance confocal microscope (RCM) to evaluate thickness and inflammatory changes of skin lesions. Hematoxylin-eosin (HE) staining, real-time PCR, RNA-sequencing (RNA-seq), and immunohistochemistry were performed to detct and analyze the skin lesions. RESULTS: Ozonated oil significantly alleviated DNCB-induced ACD-like dermatitis and reduced the expressions of IFN-γ, IL-17A, IL-1β, TNF-α, and other related inflammatory factors (all P<0.05). RNA-seq analysis revealed that ozonated oil significantly inhibited the activation of the DNCB-induced FcεRI/Syk signaling pathway, confirmed by real-time PCR and immunohistochemistry (all P<0.05). Compared with the ozonated oil group and the FcεRI-NC group, the mRNA expression levels of IFN-γ, IL-17A, IL-1β, IL-6, TNF-α, and other inflammatory genes in the FcεRI-OE group were significantly increased (all P<0.05), and the mRNA and protein expression levels of FcεRI and Syk were significantly elevated in the FcεRI-OE group as well (all P<0.05). CONCLUSIONS Ozonated oil significantly improves ACD-like dermatitis and alleviated DNCB-induced ACD-like dermatitis via inhibiting the FcεRI/Syk signaling pathway.
Animals ; Mice ; Dinitrochlorobenzene/metabolism* ; Skin/metabolism* ; Cytokines/metabolism* ; Interleukin-17/metabolism* ; Tumor Necrosis Factor-alpha/metabolism* ; Dermatitis, Allergic Contact/pathology* ; Dermatitis, Atopic/chemically induced* ; Signal Transduction ; RNA, Messenger/metabolism* ; Mice, Inbred BALB C

Objective:To investigate the development and influencing factors of frailty in elderly patients on maintenance hemodialysis.Methods:A cross-sectional survey involved 146 elderly patients on maintenance hemodialysis at the blood purification department of the First Affiliated Hospital of Xi'an Jiaotong University.A self-designed demographic questionnaire was used to collect general information of patients, the Simple Physical Performance Scale(SPPB)was used to assess physical function, the 5-item SARC-F was used as a tool for rapid screening of sarcopenia, and the Hospital Anxiety and Depression Scale(HADS)was used for screening of anxiety and depression.The FRAIL scale was used for frailty assessment and participants were divided into a no frailty group, a pre-frailty group and a frailty group according to different frailty scores.Relevant influencing factors of frailty were analyzed.Results:Among 146 hemodialysis patients, 33(22.6%)were in the non-frailty group, 86(58.9%)in the pre-frailty group, and 27(18.5%)in the frailty group.Univariate analysis showed that there were statistically significant differences in sex( χ2=6.220, P=0.045), age( F=5.197, P=0.007), body type( χ2=31.927, P<0.001), SARC-F score( χ2=24.283, P<0.001)and SPPB score( χ2=26.773, P<0.001)between different groups.There were 3 patients(9.4%)at high risk for sarcopenia in the no frailty group, 13 patients(40.6%)at high risk for sarcopenia in the pre-frailty group, and 16 patients(50%)at high risk for sarcopenia in the frailty group, and differences in the occurrence of sarcopenia between the different subgroups of frailty were statistically significant( χ2=27.496, P<0.001). Multifactorial Logistic regression analysis showed that age, ( OR=1.04, 95% CI: 0.99-1.08, P=0.049), sex( OR=0.39, 95% CI: 0.17-0.87, P=0.021), body size( OR=0.07, 95% CI: 0.01-0.50, P=0.008), SARC-F( OR=0.14, 95% CI: 0.05-0.38, P<0.001)were independent influencing factors of frailty in elderly maintenance hemodialysis patients( P<0.05). Conclusions:The incidence of frailty is high in elderly patients on maintenance hemodialysis, and the development of frailty is affected by age, body mass index and sarcopenia.