1.Prevalence of falls among elderly patients with comorbidity of chronic diseases in Chongqing Municipality
ZHANG Jiajia ; CHEN Xiaoyu ; LIAO Juan ; CHEN Jiao ; ZHAO Xiaogang
Journal of Preventive Medicine 2023;35(12):1062-1066
Objective:
To investigate the prevalence and influencing factors of falls among elderly patients with comorbidity of chronic diseases in Chongqing Municipality, so as to provide insights into preventing measures of falls.
Methods:
Elderly patients with comorbidity of chronic diseases admitted to a level A tertiary hospital of Chongqing Municipality from July 2022 to December 2022 were recruited. Participants' demographics, physical component and fall condition were collected using a questionnaire survey. Incidence of falls was descriptively analyzed, and factors affecting falls among elderly patients with comorbidity of chronic diseases were identified using a multivariable logistic regression model.
Results:
A total of 344 questionnaires were allocated, and 338 valid questionnaires were recovered, with an effective rate of 98.26%. There were 195 men (57.69%) and 143 women (42.31%), with a mean age of (77.10±7.29) years. There were 171 (50.59%), 115 (34.02%), 38 (11.24%) and 14 (4.14%) patients suffering from 2, 3, 4 and 5 chronic diseases, respectively. The incidence of falls during recent six months was 22.49%. Multivariable logistic regression analysis identified history of vertigo in last 6 months (OR=2.720, 95%CI: 1.409-5.249), fear of falling (OR=8.725, 95%CI: 4.572-16.653) and adaptation of living environments to ageing (OR=0.257, 95%CI: 0.130-0.509) as factors affecting elderly patients with comorbidity of chronic diseases.
Conclusion
The Elderly patients with comorbidity of chronic diseases who have a history of vertigo, fear of falling, and living environments that are not age-adapted are at higher risks of falls.
2.Resilience and related factors in rescue soldiers
Jiajia ZHANG ; Aihua HAN ; Min LI ; Yu ZHANG ; Peipei LI ; Lili ZHANG ; Wenjun LIAO ; Maozhu HU
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(1):53-55
Objective To research the resilience and related factors of the rescue soldiers. Methods Resilience Scale for Adults( RSA ), Self-report Symptom Checklist 90 (SCL-90), Eysenck Personality Questionnaire(EPQ) and Coping Style Questionnaire were applied in this survey to 1401 rescue soldiers. Results ①The soldiers' resilience score was (2.49±0.57) ,significantly lower than college students( t= 16.619, P=0. 000).The rescue soldiers with the year in army above 3 were significantly higher than that below 2 years in social competence( t=2.581, P=0.01 ) ,social resources( t=2. 158, P=0.031 ) ,structured style( t=3.254, P=0.001 ) and RSA scores(t=2.455, P=0.014). There exist significantly differences in various education level of the rescue soldiers in perception of self(t=3.732, P=0.024), planned of future ( t = 9.324, P = 0.000 ) , social competence ( t = 8. 838, P = 0.000 ), social resources ( t = 13. 660, P = 0. 000 ) and RSA scores (t=9.805, P=0.000) , and college ≥ senior high school ≥ junior high school. ②Compared to the lower group in the RSA, the higher group scored significantly higher in extraversion (t=16. 204, P=0.000) and positive coping( t = - 18. 171, P=0.000), while lower in SCL-90 (t=8.461, P=0.000) and neuroticism (t=8.833, P=0.000 ).③Resilience have the obvious positive correlation with the education ( r= 0. 116 ), extraversion ( r= 0. 463 ) and positive coping(r=0.500) ,and negative correlation with the neuroticism(r=-0.251 ) and SCL-90( r= -0.260). It can be assumed that positive coping,extraversion and neuroticism had good predictive ability(35.9%) to resilience. Conclusion The rescue soldiers have low resilience than college students, positive coping, extraversion, and neuroticism are important psychological factors for rescue soldiers.
3.A new method for establishing temperature gradient field in micro-channel on glass-PDMS microfluidic chip and for investigating thermal biological effect of cells
Yuan LI ; Jiajia HE ; Shasha ZHANG ; Juan LIAO ; Deyu YANG ; Beizhong LIU
Military Medical Sciences 2015;(9):710-716
Objective To develop a new method for establishing a temperature gradient field in the microchannel on a glass-polydimethylsiloxane ( PDMS ) microfluidic chip and to verify its applicability in the study of cellular thermal biological effect.Methods The establishment and control of the temperature gradient field in the microchannel were implemented by a peripheral indium tin oxide ( ITO) heater and a heating micro-wire embedded in the PDMS chip.The temperature gradient field established in the microchannel was represented by the finite element numerical analysis and temperature-dependent fluorescent dye rhodamine B.Finally, the thermal biological effect, which used cell survival rate of human prostate cancer cells T24 as an indicator, was investigated in the microchannel.Results The results of finite element numerical analysis proved that this method established a temperature gradient field along the length of the microchannel successfully.The distribution range of the temperature gradient field was controlled by the ITO heater, while the gradient of the temperature gradient field was controlled by the heating micro-wire.The measurement result of rhodamine B was identical with the result of the finite element numerical analysis.The thermal biological effect of T24 tumor cell research showed that the cell survival rate decreased with the rise of the regional temperature in the microchannel.Conclusion The method developed in this paper for establishing a temperature gradient field in the microchannel on a glass-PDMS microfluidic chip is simple and easy to implement, and it can be used for parallel study of the cellular thermal biological effect on the microfluidic chip in the future.
4.Efficacy and Safety of Pulse Magnetic Therapy System in Insomnia Disorder: A Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial
Jiwu LIAO ; Sisi WANG ; Borong ZHOU ; Wei LIANG ; Ping MA ; Min LIN ; Weisen LIN ; Congrui LI ; Xiaotao ZHANG ; Hongyao LI ; Yin CUI ; Jiajia HU ; Yuanyi QIN ; Yanhua DENG ; Aibing FU ; Tianhua ZHU ; Shanlian ZHANG ; Yunhong QU ; Lu XING ; Wumei LI ; Fei FENG ; Xinping YAO ; Guimei ZHANG ; Jiyang PAN
Psychiatry Investigation 2023;20(6):559-566
Objective:
This study’s objective is to assess the efficacy and safety of Pulsed Magnetic Therapy System (PMTS) in improving insomnia disorder.
Methods:
Participants with insomnia disorder were randomly assigned to receive either PMTS or sham treatment for four weeks (n= 153; PMTS: 76, sham: 77). Primary outcomes are the Insomnia Severity Index (ISI) scores at week 0 (baseline), 1, 2, 3, 4 (treatment), and 5 (follow-up). Secondary outcomes are the Pittsburgh Sleep Quality Index at baseline and week 4, and weekly sleep diary-derived values for sleep latency, sleep efficiency, real sleep time, waking after sleep onset, and sleep duration.
Results:
The ISI scores of the PMTS group and the sham group were 7.13±0.50, 11.07±0.51 at week 4, respectively. There was a significant group×time interaction for ISI (F3.214, 485.271=24.25, p<0.001, ηp 2=0.138). Only the PMTS group experienced continuous improvement throughout the study; in contrast, the sham group only experienced a modest improvement after the first week of therapy. At the end of the treatment and one week after it, the response of the PMTS group were 69.7% (95% confidence interval [CI]: 58.6%–79.0%), 75.0% (95% CI: 64.1%–83.4%), respectively, which were higher than the response of the sham group (p<0.001). For each of the secondary outcomes, similar group×time interactions were discovered. The effects of the treatment persisted for at least a week.
Conclusion
PMTS is safe and effective in improving insomnia disorders.
5.Effect of Shenling Baizhusan on Alcoholic Liver Injury in Rats by Regulating Ferroptosis Based on Nrf2 Signaling Pathway
Xiangyu ZHOU ; Sufang ZHOU ; Yuru LI ; Shiqin CAI ; Jiajia LIAO ; Zuoyu YE
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(5):104-113
ObjectiveTo observe the effect of Shenling Baizhusan on the intervention of the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway by regulating ferroptosis in rats with alcoholic liver injury. MethodForty SD rats were randomly divided into model group, polyene phosphatidylcholine group, and high, medium, and low-dose Shenling Baizhusan groups, with 8 rats in each group. Another 8 SD rats were taken as blank group. The model group, polyene phosphatidylcholine group, high, medium, and low-dose Shenling Baizhusan groups were given 10 mL·kg-1 liquor by gavage for modeling, and the blank group was given equal volume of distilled water by gavage. After 4 h of daily alcoholic administration, 143.64 mg·kg-1 of polyene phosphatidylcholine group was given to the polyene phosphatidylcholine group, 15, 7.5, 3.75 mg·kg-1 of Shenling Baizhusan were given to Shenling Baizhusan high, medium, and low-dose groups, respectively, and the blank group and the model group were given equal volume of distilled water. The gavage lasted for 6 weeks. The levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), glutamyl transpeptidase (GGT), total cholesterol (TC), and triglyceride (TG) were detected by automatic biochemical analyzer. The levels of tumor necrosis factor-α (TNF-α) and interleukin-β (IL-β) were detected by the enzyme-linked immunosorbent assay (ELISA). The levels of lipopolysaccharide (LPS), malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), and Fe+ were detected by biochemical assay. The pathological changes in the liver were observed by hematoxylin-eosin (HE) staining and oil red O staining. The mRNA expression levels of Nrf2, heme oxygenase-1 (HO-1), glutathione peroxidase 4 (GPX4), ferritin heavy polypeptide 1 (FTH1), and nuclear factor-κB (NF-κB) were detected by Real-time polymerase chain reaction (Real-time PCR). The protein expression levels of Nrf2, HO-1, GPX4, FTH1, p65, and phosphorylation (p)-p65 were detected by Western blot. ResultAs compared with the blank group, the levels of liver function (ALT, AST, and GGT) and blood lipids (TC and TG) in the model group were significantly increased (P<0.05). The liver showed obvious steatosis, with a large number of fat deposition, the oxidative stress and inflammatory factors were significantly increased (P<0.05), and the level of Fe+ was significantly increased in model group (P<0.05). The protein expression levels of Nrf2, HO-1, GPX4, and FTH1 was significantly down-regulated (P<0.05), and those of p65 and p-p65 was significantly up-regulated in the model group (P<0.05). The mRNA expression levels of Nrf2, HO-1, GPX4, and FTH1 were significantly down-regulated (P<0.05), and the mRNA expression level of NF-κB was significantly up-regulated (P<0.05). As compared with the model group, the levels of liver function (ALT, AST, and GGT) and blood lipids (TC and TG) in the high-dose and medium-dose Shenling Baizhusan groups were significantly decreased (P<0.05), liver steatosis was significantly improved, fat deposition was significantly reduced, oxidative stress and inflammatory factors were significantly decreased (P<0.05 ), and Fe+ level was significantly decreased (P<0.05). In the high-dose and medium-dose Shenling Baizhusan, the protein expression levels of Nrf2, HO-1, GPX4, and FTH1 were significantly up-regulated (P<0.05), and those of p65, p-p65 were significantly down-regulated (P<0.05). The mRNA expression levels of Nrf2, HO-1, GPX4, and FTH1 were significantly up-regulated (P<0.05), and the mRNA expression level of NF-κB was significantly down-regulated (P<0.05). ConclusionShenling Baizhusan can effectively reduce liver injury in rats with ALD, regulate steatosis and fat deposition, and play an antioxidant and anti-inflammatory role in the liver. Its mechanism may be related to the inhibition of ferroptosis in hepatocytes by up-regulating the Nrf2 signaling pathway to improve oxidative stress
6.Resolvin-D1 inhibits interleukin-8 and hydrogen peroxide production induced by cigarette smoke extract in 16HBE cells via attenuating NF-κB activation.
Jiajia DONG ; Mingke ZHANG ; Zenglin LIAO ; Wei WU ; Tao WANG ; Lei CHEN ; Ting YANG ; Lingli GUO ; Dan XU ; Fuqiang WEN
Chinese Medical Journal 2014;127(3):511-517
BACKGROUNDCigarette smoke induced airway inflammation plays a role in pathogenesis of airway inflammation. Resolvin-D1 derived from omega-3 polyunsaturated fatty acids is an endogenous anti-inflammatory and proresolving lipid mediator. Resolvin-D1 ameliorated inflammatory responses in lung injury, asthma, peritonitis and atherosclerosis. We investigated whether resolvin-D1 suppressed the productions of chemokines and oxidative stress induced by cigarette smoke extract (CSE) in vitro and its possible mechanism.
METHODSWe examined the proinflammatory chemokine interleukin-8 and hydrogen peroxide (H2O2) productions induced by CSE in 16 human bronchial epithelial (16HBE) cells after resolvin-D1 treatment and their mechanisms. 16HBE cells were treated with resolvin-D1 at up to 10 nmol/L, for 30 minutes before CSE up to 16% (v/v) exposure. Release of interlukin-8 proteins was assessed by enzyme linked immunosort assay (ELISA) and its mRNA level by RT-PCR. We evaluated extracellular H2O2 expression in the supernatant. Phosphorylation of NF-κB/p65 and degradation of I-κB in 16HBE cells were determined by Western blotting analysis and NF-κB DNA binding activity by electrophoretic mobility shift assay (EMSA).
RESULTS16HBE cells treated with 8% CSE showed significantly higher interlukin-8 production. Resolvin-D1 pretreatment inhibited CSE induced interlukin-8 production (mRNA and protein) in a dose and time dependent manner. Extracellular H2O2 level decreased after resolvin-D1 treatment. Resolvin-D1 attenuated CSE triggered I-κB degradation and NF-κB/p65 activation dose dependently and inhibited NF-κB DNA binding activity.
CONCLUSIONResolvin-D1 inhibits CSE induced interlukin-8 and H2O2 production in 16HBE cells by modulating NF-κB activation and has therapeutic potential for pulmonary inflammation.
Blotting, Western ; Cell Line ; Cell Survival ; drug effects ; Docosahexaenoic Acids ; pharmacology ; Electrophoretic Mobility Shift Assay ; Enzyme-Linked Immunosorbent Assay ; Humans ; Hydrogen Peroxide ; metabolism ; Interleukin-8 ; metabolism ; NF-kappa B ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Smoking ; adverse effects
7.Effects of compound protein powder on nitrogen metabolism and physiological and biochemical indexes in rats
Lihuang ZHONG ; Qian TAO ; Xiuying KOU ; Yongxuan MA ; Na LIAO ; Jiajia WANG ; Yuanyuan DENG ; Guang LIU
Journal of Public Health and Preventive Medicine 2023;34(5):8-13
Objective To explore the nutritional efficacy of compound protein powder formulations from different sources. Methods Three groups of compound protein powder formulations were obtained through scientific blending using soy protein, whey protein and yeast protein as raw materials. The effects of the compound protein powders on nitrogen metabolism, serum biochemical indicators, and pathological changes of liver tissue and epididymal fat in rats were evaluated. Results Compared with the control (casein), the net protein utilization, biological evaluation, and protein efficacy ratio of the compound protein powders in rats were significantly improved, and the changes in these indicators in the formula with the highest whey protein content were most significant among all three formulas. The compound protein powders effectively increased the levels of albumin and globulin, while decreased the content of total cholesterol, indicating beneficial effects on improving immunity and controlling lipid metabolism, with the formula group 2 being the most effective among all three groups. The pathological examination showed that the three groups of protein powder did not have adverse effects on liver tissue and epididymal fat. Conclusion The present study demonstrates that the compound protein powder formulation has nutritional value, which suggests a potential of the application of the compound protein powder formulation in the elderly, and people with special nutritional needs, such as sports people.