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With the gradual maturity of renal replacement therapy technology, prolonging life span and improving quality of life of patients with uremia have become the ultimate management goals. In recent years, many studies at home and abroad have suggested that hypomagnesemia has an adverse effect on the prognosis of dialysis patients, which may be related to an increased risk of death. We understand the correlation between blood magnesium and blood pressure, cardiovascular disease, bone metabolism and vascular calcification, point out that blood magnesium may become one of the control indicators to reduce the mortality of dialysis patients, and explore its new clinical application.
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Objective:To explore the clinical significance of event-related potential P300 in the diagnosis and treatment of cognitive function in patients with chronic insomnia combined with anxiety and depression.Methods:Sixty patients with chronic insomnia complicated with anxiety and depression treated in Wuhan First Hospital from October 2020 to March 2021 were selected as the observation group, and 60 healthy volunteers were selected as the control group in the same period.Hamilton anxiety scale (HAMA) and Hamilton depression scale (HAMD) were used to evaluate the anxiety and depression status of patients.Mini mental state examination (MMSE) and Montreal cognitive assessment scale (MoCA) were used to evaluate the cognitive function of the subjects.All subjects were tested for P300 event-related potential, and the latency and amplitude of P300 event-related potential were recorded.SPSS 25.0 software was used for statistical analysis.Independent sample t-test was used for comparison between groups.Pearson correlation analysis was used to analyze the correlation between cognitive function and P300 event-related potential. Results:The scores of HAMA ((16.65±5.10), (9.30±4.42)) and HAMD ((18.07±3.97), (8.48±3.21)) in the observation group were higher than those in the control group ( t=8.438, 14.545, both P<0.05), and the MoCA score (22.35±4.25) was lower than that(25.65±2.29) in the control group ( t=-5.291, P<0.05). In the eight dimensions of MoCA, the scores of visual space and executive ability ((3.38±1.46), (4.63±0.69)), naming ((2.37±0.78), (2.65±0.48)), language ((2.17±0.96), (2.53±0.81)) and delayed recall ((2.58±1.45), (4.17±0.85))in the observation group were lower than those in the control group ( t=-5.991, -2.394, -2.259, -7.292, all P<0.05). Compared with the control group, the latencies of P300 (N1, N2, P3) in the observation group were significantly prolonged ( t=3.281, 4.342, 4.492, all P<0.01). The latencies of P300 (N1, N2, P3) were positively correlated with HAMD score ( r=0.242, 0.301, 0.311, all P<0.05). The latencies of P300 (N2, P3) were positively correlated with HAMA score ( r=0.205, 0.207, both P<0.05). The latencies of P300 (N2, P3) were negatively correlated with the delayed recall score of MoCA ( r=-0.197, -0.236, both P<0.05). Conclusion:There are different degrees of cognitive impairment in patients with chronic insomnia combined with anxiety and depression.P300 in patients with chronic insomnia combined with anxiety and depression shows prolonged latency.P300 latency is related to depression, anxiety and cognition in patients with chronic insomnia combined with anxiety and depression.Event-related potential P300 may be used as a neurophysiological objective evaluation tool for cognitive impairment in patients with chronic insomnia combined with anxiety and depression.
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Objective:To explore the effect of aquaporin 4 (AQP4) regulated by miR-320a on a cell model of Alzheimer′s disease.Methods:A rat adrenal pheochromocytoma cell line (PC12) was induced into neurons using nerve growth factor (NGF). The morphology of the PC12 cells and the neurons was observed, and ubiquitin carboxy terminal hydrolase L1 (Uch-L1) and neurofilament protein (NFP) were detected. Levels of microtubule-associated protein (MAP2) and AQP4 target genes were related to the mRNA expression of NFP to determine the neuron-inducing effect. The neurons were then randomly divided into a control group (given no treatment), an miR-320a mimic transfection group (cultured by adding 50nmol/L miR-320a as a mimic agent), an miR-320a inhibitor group (cultured by adding 50nmol/L miR-320a as an inhibitor), an Aβ treatment group (cultured by adding Aβ), an Aβ+ miR-320a mimic group (cultured by adding both 50nmol/L miR-320a and Aβ), and an Aβ+ miR-320a inhibitor group (also cultured by adding Aβ, but with 50nmol/L miR-320a as an inhibitor). Cell activity was measured by the CCK8 method. Reverse-transcription polymerase chain reactions were used to detect the relative expression of the target gene miR-320a, AQP4, B-cell bcl2-associated X (Bax), and B-cell bcl-2 (Bcl-2) mRNA. Western blotting was employed to detect the relative expression of AQP4, Bax and Bcl-2 proteins.Results:After PC12 was induced by 50μg/L NGF, the expression of Uch-L1 genes in the induced neuron was significantly down-regulated compared with the PC12. The expressions of NFP, MAP2 and AQP4 genes were significantly up-regulated, and the relative expressions of MAP2 and AQP4 proteins increased significantly. Compared with the control group, the apoptosis and cell activity of neurons in the treatment group increased, the mRNA and protein expressions of miR-320a, AQP4, bcl-2, AQP4 and Bcl-2 decreased significantly, and the mRNA and protein expressions of Bax increased significantly. Compared with the Aβ-treated group, the cell activity of the Aβ+ Mir-320a mimic group increased significantly, the mRNA and protein expressions of miR-320a, AQP4 and Bcl-2 increased significantly, and the mRNA and protein expressions of Bax decreased significantly. Compared with the Aβ+ miR-320a mimic group, the cell activity of the Aβ+ miR-320a inhibitor group decreased significantly, the mRNA and protein expressions of miR-320a, AQP4 and Bcl-2 decreased significantly, and the mRNA and protein expressions of Bax increased significantly.Conclusion:miR-320a can up-regulate AQP4 expression in a cell model of Alzheimer′s disease, reduce apoptosis and increase the cell survival rate.
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Objective@#To study the effect of comprehensive treatment in stroke unit on the cognition and life quality of patients with vascular cognitive impairment (VCI) and also its effects on the mental state of their caregivers.@*Methods@#Ninety-three persons with VCI were randomly divided into a control group (n=44) and a comprehensive treatment group (n=49) after being admitted into the stroke unit. Both groups took routine basic drugs (such as anti-platelet drugs, lipid lowering drugs, anti-hypertension drugs, huperzine-A tablets and Nicergoline tablets). The treatment group was additionally provided with limb movement rehabilitation training, social practice, cognitive training and health education. During the treatment, the treatment group′s caregivers were also given health education about VCI and stroke, systematic rehabilitation knowledge and skills training and appropriate anti-depressant and anxiety medication if need. Before the treatment, as well as 3 and 6 months after the treatment, the patients of both groups were evaluated using the mini-mental state examination (MMSE), the Montreal cognitive assessment (MoCA), their ability in the activities of daily living (ADL) was rated and Spitzer quality of life (QLI) values were assigned. The caregivers were evaluated using the Hamilton depression scale (HAMD) and the Hamilton anxiety scale (HAMA).@*Results@#After 3 and 6 months of treatment, the average MMSE, MoCA, ADL and QLI scores of the treatment group had improved significantly and were then significantly better than those of the control group at the same time points. The average HAMD score of the treatment group was also significantly better.@*Conclusion@#Comprehensive stroke unit therapy can improve the cognition and life quality of patients with vascular cognitive impairment. It can also improve the mental state of their caregivers.
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Objective To study the effect of comprehensive treatment in stroke unit on the cognition and life quality of patients with vascular cognitive impairment ( VCI) and also its effects on the mental state of their caregiv-ers. Methods Ninety-three persons with VCI were randomly divided into a control group ( n=44) and a compre-hensive treatment group ( n=49) after being admitted into the stroke unit. Both groups took routine basic drugs ( such as anti-platelet drugs, lipid lowering drugs, anti-hypertension drugs, huperzine-A tablets and Nicergoline tablets). The treatment group was additionally provided with limb movement rehabilitation training, social practice, cognitive training and health education. During the treatment, the treatment group's caregivers were also given health education about VCI and stroke, systematic rehabilitation knowledge and skills training and appropriate anti-depressant and anx-iety medication if need. Before the treatment, as well as 3 and 6 months after the treatment, the patients of both groups were evaluated using the mini-mental state examination ( MMSE ) , the Montreal cognitive assessment ( MoCA) , their ability in the activities of daily living ( ADL) was rated and Spitzer quality of life ( QLI) values were assigned. The caregivers were evaluated using the Hamilton depression scale (HAMD) and the Hamilton anxiety scale ( HAMA) . Results After 3 and 6 months of treatment, the average MMSE, MoCA, ADL and QLI scores of the treatment group had improved significantly and were then significantly better than those of the control group at the same time points. The average HAMD score of the treatment group was also significantly better. Conclusion Com-prehensive stroke unit therapy can improve the cognition and life quality of patients with vascular cognitive impair-ment. It can also improve the mental state of their caregivers.
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Objective To investigate the prevalence and endoscopic detection rate of proximal serrated polyps and to screen the risk factors. Methods The data of 9010 colonoscopies performed by 22 endoscopists between September 2016 and September 2017 were reviewed. The adenoma detection rate (ADR) and proximal serrated polyp detection rate (PSDR) were calculated, and the correlation between ADR and PSDR was estimated by Pearson correlation coefficients. Multivariate logistic regression was used to analyze PSDR among endoscopists. Results For all subjects, the mean ADR was 30. 07％ ( ranged from 20. 00％ to 40. 78％) and mean PSDR was 4. 70％ ( ranged from 1. 52％ to 9. 28％) . PSDR of males was 1. 38 times of that of females ( OR=1. 38, 95％CI:1. 13-1. 69, P<0. 01) . For 3560 cases ( 39. 51％) of 50 years and older subjects, the mean ADR was 45. 01％ ( 28. 99％-57. 78％) and mean PSDR was 6. 08％(2. 07％-10. 56％). PSDR was moderately correlated with ADR (r=0. 48, P=0. 02). PSDR of males was 1. 36 times of that of females (OR=1. 36, 95％CI: 1. 04-1. 80, P=0. 03). Endoscopist was a significant risk factor for detection of proximal serrated polyps ( P<0. 01) . Compared with endoscopist with the highest PSDR, odds ratio of other endoscopists ranged from 0. 16 (95％CI:0. 06-0. 40, P<0. 01) to 0. 83 (95％CI:0. 53-1. 32, P=0. 44) . Conclusion Proximal serrated polyps are more common in males, who are over 50 years old. The PSDR is highly variable and dependent on endoscopists. It is possible that a certain proportion of proximal serrated polyps are missed during colonoscopy.
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Objective To observe the effect of health education on the mental health and life quality of people at high risk of stroke.Methods Totally 3092 residents of Wuhan aged over 40 were screened for stroke risk.Of those,392 cases were assessed as at high risk of stroke and were chosen as the study's subjects.They were given a 1-year course of standard health education.Before and after the intervention,their diet,exercise,compliance with medication and smoking habits were recorded.They were also assessed using the self-rating depression scale (SDS),the self-rating anxiety scale (SAS) and the Spitzer quality of life index (QLI).Results Significant improvement in healthy behavior was observed after the intervention.The average SDS score and SAS score had decreased significantly,and the average QLI score was significantly higher than before the intervention.Conclusion Health education can improve the healthy behavior,mental state and life quality of people at high risk of stroke.
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Objective:To investigate the role of scavenger receptor BⅡ(SR-BⅡ) in the oxidized low density lipid(ox-LDL) induced foam cells formation promoted by porphyromonas gingivalis(P.g).Methods:Peritoneal macrophages were stimulated with P.g and ox-LDL,and then foam cells formation were checked.The expression of SR-BⅡ was detected by Western blot and real-time PCR.Next,siRNA targeting SR-BⅡ was used to detect the change of foam cells formation.Results:After being stimulated with P.g and ox-LDL,the foam cells formation was significantly increased.During the process of foam cells formation,P.g infection increased the expression of SR-BⅡ.And the knockdown of SR-BⅡ by siRNA significantly reduced the foam cells formation.Conclusion:P.g infection can increase the expression of SR-BⅡ and the regulation of SR-BⅡ expression can change the foam cells formation.
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Objective To study the relationship among neuropsychological factors, De Qi, and efficacy of acupuncture on chronic alco-holic peripheral neuropathy (CAPN) patients. Methods 55 male patients with CAPN were randomized into acupuncture manipulation group (n=25) and non-manipulation group (n=25). The degree of symptoms and clinical efficacy in patients were evaluated with Neuropathy Im-pairment Score in the Lower Limbs (NIS-LL) and Neurological Severity Score (NSS). The levels of De Qi for patients and acupuncturists were assessed by Subjective Acupuncture Sensation Scale (SASS), the psychological factors in patients were tested with Sixteen Personality Factor Questionnaire (16PF), Hamilton Depression Scale (HAMD) and Hamilton Anxiety Scale (HAMA). Results 7, 14, 21, 28 days after treatment, the scores of De Qi and the average score were significantly higher in the manipulation group than in the non-manipulation group (P<0.05). The higher the scores of warmth, independence, intelligence, irritability and sensitivity, the more susceptible to SASS. 14, 28 days after treatment, the scores of SASS were lower in the depression group and anxiety group than in the healthy group (P<0.05). 28 days after treatment, the scores of NIS-LL and NSS were higher in the depression group and anxiety group than in the healthy group (P<0.05), and were lower in the acupuncture manipulation group than in the non-manipulation group (P<0.05). Conclusion Acupuncture is effective on CAPN. The neuropsychological factors play important role in De Qi and the efficacy.
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Objective To establish an HPLC method for the determination of ceftazidime for injection. Methods HPLC column was TSK-GEL G2000SWXL gel column. Mobile phase of phosphate buffer ( pH 7. 0) was 0. 005 mol · L-1 disodium hydrogen phosphate solution-0. 005 mol · L-1 sodium dihydrogen phosphate solution ( 61 : 39 ). The detection wavelength was 231 nm; column temperature was 30 ℃ ; the injection volume was 20 μL. Results Ceftazidime reference linear range was 0. 51-25. 64 μg·mL-1(r=0. 999), ceftazidime for injection polymer linear range was 0. 20-3. 92 mg·mL-1 (r=0. 99), and the limit of quantification polymer was 0. 71 μg. Conclusion The method is rapid and the separation was good. It can be used for the detection of ceftazidime for injection.
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Informationization teaching resources contain a large number of information so rea-sonable and effective application of the resources is of great significance to the teaching. The article tries to explore and work out some teaching strategies for effective application of informationization teaching resources through action research combined with literature research , questionnaire survey method , interview and other methods. The research process: the original teaching strategies of infor-mationization teaching resources were implemented , implicated and verified in the first round action research; the problems in the first round were summarized and analyzed and the original teaching strategies were adjusted and optimized in the next round action research; finally, the teaching effec-tiveness between the two rounds action research was evaluated and analyzed by the “classroom teach-ing effectiveness criteria based on the use of information technology teaching resources”. The results show that effective application of informationization teaching resources is of great help to the teaching effect. It can enhance the learners' interest in learning and improve their academic performance. Ap-propriate and rational teaching strategy should be provided flexibly according to the learning back-ground and characteristics of students as well as learning contents.