BACKGROUND:Current studies have confirmed that Ganoderma lucidum polysaccharides can promote nerve regeneration in neurodegeneration-related diseases.The occurrence of neurodegenerative diseases is closely related to mitochondrial dysfunction,but the role of Ganoderma lucidum polysaccharides on the regulation of apoptosis and mitochondrial function in neurodegenerative diseases is not yet clarified. OBJECTIVE:To explore the regulatory effects and mechanisms of Ganoderma lucidum polysaccharides on apoptosis and mitochondrial dysfunction in H2O2-induced SH-SY5Y cells. METHODS:SH-SY5Y cells were divided into three groups:control group,H2O2 group,and Ganoderma lucidum polysaccharides group.Cells in the control group were normally cultured.Cells in the H2O2 group were treated with 300 μmol/L H2O2 for 24 hours.In the Ganoderma lucidum polysaccharides group,the intervention with 300 μg/L Ganoderma lucidum polysaccharides was conducted first for 1-2 hours,followed by the addition of 300 μmol/L H2O2 for 24 hours.The mitochondrial membrane potential was detected by JC-1 kit.Apoptosis was detected by TUNEL staining kit.The activities of malondialdehyde and superoxide dismutase were detected by malondialdehyde test kit and superoxide dismutase test kit,respectively.The apoptosis and expression of mitochondrial dynamics-related proteins were detected by immunofluorescence staining and western blot assay. RESULTS AND CONCLUSION:(1)Compared with the control group,the mitochondrial membrane potential and superoxide dismutase activity were significantly reduced,as well as apoptotic rate and malondialdehyde levels were significantly increased in the H2O2 group(P<0.05).After treatment with Ganoderma lucidum polysaccharides,the membrane potential and superoxide dismutase activities were significantly increased,and apoptotic rate and malondialdehyde levels were significantly reduced compared with the H2O2 group(P<0.05).(2)The expression levels of pro-apoptotic proteins Bax and Caspase-3 were significantly increased,but the expression of anti-apoptotic protein Bcl-2 was significantly decreased in the H2O2 group compared with the control group(P<0.05).Compared with the H2O2 group,the levels of Bax and Caspase-3 were significantly decreased,but the expression of anti-apoptotic protein Bcl-2 was significantly increased in the Ganoderma lucidum polysaccharides group(P<0.05).(3)Compared with the control group,the expression of mitochondrial splitting proteins Fis1 and p-Drp1 was significantly increased,but the expression of mitochondrial fusion proteins OPA1,Mfn1,and Mfn2 was decreased in the H2O2 group(P<0.05).Compared with the H2O2 group,Fis1 and p-Drp1 expression was significantly reduced,but the expression levels of OPA1,Mfn1,and Mfn2 were significantly increased in the Ganoderma lucidum polysaccharides group(P<0.05).(4)The above results confirm that Ganoderma lucidum polysaccharides can attenuate H2O2-induced oxidative stress damage and apoptosis in SH-SY5Y cells by ameliorating mitochondrial dysfunction.

BACKGROUND:Multiple sclerosis is a chronic inflammatory demyelinating disease of the central nervous system mediated by T cells.The Toll-like receptors(TLRs)/myeloid differentiation factor 88(MyD88)/nuclear factor kappa-B(NF-κB)signaling pathway plays an important role in the development of the disease.Exploring the specific mechanism of the signaling pathway is essential for further treatment of the disease and improving the prognosis of patients. OBJECTIVE:To review the TLRs/MyD88/NF-κB signaling pathway and its role in multiple sclerosis/experimental autoimmune encephalomyelitis models,which provides new ideas and strategies for the treatment of multiple sclerosis by inhibiting the TLRs/MyD88/NF-κB signaling pathway. METHODS:The literature related to the topic from January 2002 to December 2022 was searched in CNKI,WanFang and PubMed databases.A total of 61 articles were finally included for analysis. RESULTS AND CONCLUSION:The TLRs/MyD88/NF-κB signaling pathway is an important pathway that triggers a pro-inflammatory immune response.The TLRs/MyD88/NF-κB signaling pathway plays an important role in the development of multiple sclerosis by regulating the antigen presentation of dendritic cells,destroying the integrity of the blood-brain barrier,and promoting the activation of T cells,B cells and microglia.By targeting TLRs,MyD88 and NF-κB molecules,inhibiting the activation or signal transduction of TLRs,MyD88 and NF-κB,and reducing the secretion of pro-inflammatory factors,multiple sclerosis can be treated.Animal studies have shown that active ingredients of traditional Chinese medicines,such as flavonoids and glycosides,and traditional Chinese medicine compound formulas,such as Buyang Huanwu Tang,can also treat experimental autoimmune encephalomyelitis by regulating the TLRs/MyD88/NF-κB signaling pathway,which points to the direction of searching for medicines targeting the TLRs/MyD88/NF-κB signaling pathway for the treatment of multiple sclerosis.

Objective:To investigate the efficacy of the Mini-Mental State Scale (MMSE) versus the Montreal Cognitive Assessment Scale (MoCA) in screening cognitive impairment in patients with a lacunar cerebral infarction. Methods:138 eligible patients who received treatment in the Affiliated Hospital of Shanxi Datong University from January 2018 to October 2019 were recruited for this study. They received cognitive function evaluation by the MMSE and MoCA. These patients were grouped according to the median number of age or the median number of years of education. The sensitivity and consistency of the MMSE versus MoCA in screening cognitive impairment in patients with a lacunar cerebral infarction were analyzed using the χ2 test. The total cognitive scores of the MMSE and MoCA, and the scores of each cognitive domain such as memory, execution, visual space, attention, language, and orientation, were compared between groups using multiple linear regression analysis. Results:The sensitivity of MoCA in screening for cognitive impairment in low-age, high-age, low-year-education, and high-year-education groups and the whole population of patients with a lacunar cerebral infarction was 76.5%, 75.7%, 74.2%, 77.8%, 76.1%, respectively, which were significantly higher than those of MMSE (44.1%, 65.7%, 60.6%, 50.0%, 55.1%, χ2 = 12.17, 13.13, 9.33, 15.75, 23.86, all P < 0.01). The Kappa coefficients of low-age, high-age, low-year-education and high-year-education groups were 0.336, 0.391, 0.358, 0.389, and 0.373, respectively, all of which were less than 0.4 (all P < 0.01). These findings suggest that the consistency of the two scales in screening cognitive impairment is poor. The cognitive impairment detection rate by the MMSE was significantly higher in the high-age group than in the low-age group (65.7% vs. 44.1%, χ2 = 6.50, P < 0.05). The total cognitive scores of MMSE and MoCA and the scores of memory, execution, visual space, attention, language, and orientation in patients with a lacunar cerebral infarction were significantly lower in the high-age group or low-year-education group than in the low-age group ( tMMSE = 3.61, 2.49, 3.12, 4.26, 1.70, 3.69, 2.24, all P < 0.01; tMoCA = 3.83, 1.75, 3.28, 3.80, 2.21, 4.08, 2.52, all P < 0.05) or high-year-education group ( tMMSE = -2.87, -2.32, -0.85, -2.54, -0.73, -2.57, -2.96, all P < 0.01; tMoCA = -2.95, -1.12, -3.39, -1.54, -1.52, -3.09, -3.02, all P < 0.05). Conclusion:Combined application of MMSE and MoCA has a high clinical value in screening cognitive impairment in patients with a lacunar cerebral infarction. High-age patients with a lacunar cerebral infarction who receive low-year education have memory, execution, visual space, attention, language, and orientation impairments.

Objective:To investigate the characteristic of mild cognitive impairment (MCI) in the adults aged 48 years and over in a coal mine community, and to analyze its associated risk factors.Methods:From July to October 2019, a questionnaire survey for basic information was conducted among 180 middle-aged and elderly adults who met the inclusion criteria in the Datong coal mine community. The cognitive function was evaluated by Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA). The effects of gender, age, years of education, sleep, living alone, physical exercise, social activities, smoking and drinking status, body mass index and chronic diseases on cognitive level were analyzed by single factor stratification and multiple linear regression.Results:There was no significant difference in the positive rate of MCI screened by MMSE and MoCA in the age groups of 48-<64, 64-<72 and 72-90 (original and corrected P>0.05); The positive rate of MCI in MoCA screening (64.4%, 66.7%, 60.9%) was significantly higher than that in MMSE (35.6%, 45.6%, 28.1%) (all P<0.05); MMSE was positively correlated with MoCA score ( r=0.762, P<0.001). With the increase of age, the scores of memory, execution and visual space detected by MoCA decreased significantly (all P<0.05), while the scores of attention, language and orientation did not change significantly (all P>0.05). Univariate stratification showed that the significant influencing factors of MMSE or MoCA scores were gender, age, years of education and sleep status (all P<0.05). Multiple linear regression analysis showed that gender ( βMMSE=-0.192; βMoCA=-0.140), years of education ( βMMSE=0.209; βMoCA=0.328) and sleep status( βMMSE=-0.162; βMoCA=-0.136) were risk factors affecting MMSE and MoCA scores ( P<0.05). Conclusions:More middle-aged and elderly adults with MCI might be observed in a coal mine community, and the main characteristics of MCI are impaired memory, executive function and visual space. To prevent and reduce the occurrence of dementia, early interventions of MCI should be carried out among the adults with female, old age, low years of education and poor sleep quality.

The importance of structural variants(SVs)for human phenotypes and diseases is now recognized.Although a variety of SV detection platforms and strategies that vary in sensitivity and specificity have been developed,few benchmarking procedures are available to confidently assess their performances in biological and clinical research.To facilitate the validation and application of these SV detection approaches,we established an Asian reference material by characterizing the genome of an Epstein-Barr virus(EBV)-immortalized B lymphocyte line along with identified benchmark regions and high-confidence SV calls.We established a high-confidence SV callset with 8938 SVs by integrating four alignment-based SV callers,including 109x Pacific Biosciences(PacBio)continuous long reads(CLRs),22 x PacBio circular consensus sequencing(CCS)reads,104x Oxford Nanopore Technologies(ONT)long reads,and 114×Bionano optical mapping plat-form,and one de novo assembly-based SV caller using CCS reads.A total of 544 randomly selected SVs were validated by PCR amplification and Sanger sequencing,demonstrating the robustness of our SV calls.Combining trio-binning-based haplotype assemblies,we established an SV benchmark for identifying false negatives and false positives by constructing the continuous high-confidence regions(CHCRs),which covered 1.46 gigabase pairs(Gb)and 6882 SVs supported by at least one diploid haplotype assembly.Establishing high-confidence SV calls for a benchmark sample that has been characterized by multiple technologies provides a valuable resource for investigating SVs in human biology,disease,and clinical research.

Objective:To compare serum procalcitonin and fibrinogen degradation product levels between type 2 diabetes mellitus patients with Escherichia coli bloodstream and urinary tract infections. Methods:The clinical data of 82 type 2 diabetes mellitus patients with Escherichia coli infections who received treatment between December 2014 and December 2019 in the First Affiliated Hospital of Datong University (The Fifth People's Hospital of Datong) were retrospectively analyzed. These patients were assigned to bloodstream infection ( n = 40) and urinary tract infection ( n = 42) according to the way of Escherichia coli infection. Serum procalcitonin and fibrinogen degradation product levels, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, C-reactive protein, white blood cell count, D-Dimer level, antithrombin III activity, and electrolytes were determined and compared between the two groups. Correlation between procalcitonin and other variables was analyzed. Multiple linear regression analysis was performed with procalcitonin level as a dependent variable and other relevant indexes as independent variables. Results:Body temperature, white blood cell count, neutrophil count, monocyte count, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, procalcitonin level, C-reactive protein level, fibrinogen degradation product level, and D-Dimer level in the bloodstream injection group were (39.49 ± 0.64) ℃, (14.92 ± 11.78) × 10 9/L, (13.39 ± 11.60) × 10 9/L, (0.72 ± 0.36) ×10 9/L, (14.86 ± 10.52), (199.15 ± 160.69), (22.81 ± 17.86) μg/L, (133.44 ± 63.63) mg/L, (49.71 ± 41.44) mg/L, (16.56 ± 12.20) mg/L, respectively, which were significantly higher than those in the urinary tract infection group [(37.12 ± 1.20) ℃, (9.04 ± 3.95) × 10 9/L, (6.25 ± 4.02) × 10 9/L, (0.42 ± 0.29) × 10 9/L, (3.67 ± 3.34), (120.01 ± 44.08), (4.46 ± 8.69) μg/L, (39.22 ± 22.16) mg/L, (3.81 ± 3.41) mg/L, (0.84 ± 0.75) mg/L), t = 7.356, 2.578, 3.162, 2.958, 5.538, 2.591, 2.810, 4.825, 2.902, 2.375, all P < 0.05]. Platelet count, lymphocyte count, blood sodium level and antithrombin Ⅲ activity in the bloodstream infection group were (167.50 ± 104.93) × 10 9/L, (1.06 ± 0.58) × 10 9/L, (130.89 ± 6.50) mmol/L, (57.88 ± 16.28)% , which were significantly lower than those in the urinary tract infection group [(239.40 ± 82.52)× 10 9/L, (2.14 ± 0.71) × 10 9/L, (138.46 ± 5.96) mmol/L, (90.11 ± 8.90)%, t = -2.853, -6.313, -4.046, -7.350, all P < 0.05]. Correlation analysis revealed that serum procalcitonin level was positively correlated with body temperature ( r = 0.387), white blood cell count ( r = 0.355), neutrophil count ( r = 0.368), C-reactive protein ( r = 0.605), fibrinogen degradation product level ( r = 0.616), D-Dimer level ( r = 0.486) (all P < 0.05), and it was negatively correlated with sodium level ( r = -0.319) and antithrombin Ⅲ activity ( r = -0.465) (both P < 0.05). Multiple linear regression analysis results revealed that fibrinogen degradation product level and body temperature were greatly correlated with procalcitonin level. Conclusion:Inflammatory indicators procalcitonin level, body temperature, white blood cell count, neutrophil count, C-reactive protein, fibrinogen degradation product level and D-Dimer level were remarkably higher in type 2 diabetes mellitus patients with Escherichia coli bloodstream infection than those in type 2 diabetes mellitus patients with Escherichia coli urinary tract infection. Procalcitonin level was greatly correlated with body temperature and fibrinogen degradation product level.

Objective:To investigate the relationship between procalcitonin(PCT) and insulin resistance in diabetic foot infection.Methods:Sixty patients with diabetic foot infection hospitalized in the Fifth People's Hospital of Datong from March 2015 to March 2017 were selected and divided into three groups according to the value of PCT: slightly elevated group(L group, n=18), moderately elevated group(M group, n=21), highly elevated group(H group, n=21). Another 20 patients with type 2 diabetes mellitus were collected as control group.The PCT, C-reactive protein(CRP), white blood cell count(WBC), fasting and postprandial blood glucose, fasting insulin and insulin resistance index(HOMA-IR) were calculated and compared. Results:In the control group, the levels of PCT, HOMA-IR, CRP and WBC were (0.14±0.12)μg/L, (17.70±8.86), (32.90±24.19)mg/L, (8.01±2.21)×10 9/L, respectively, which in the L group were (0.31±0.14)μg/L, (20.42±9.71), (50.85±27.81)mg/L, (9.95±3.35)×10 9/L, respectively, which in the M group were (1.11±0.52)μg/L, (24.08±14.09), (64.31±40.21)mg/L, (10.86±2.25)×10 9/L, respectively, which in the H group were (5.31±3.04)μg/L, (31.73±14.13), (72.29±50.26)mg/L, (12.51±5.51)×10 9/L, respectively, and there were statistically significant differences among the four groups( F=50.744, 5.195, 4.303, 5.252, all P<0.01). With the increase of PCT, the levels of WBC, CRP and HOMA-IR were increased, and HOMA-IR was positively correlated with PCT( r=0.265, P=0.017). Conclusion:Serum level of PCT has correlation with infection degree of diabetic foot and is positively correlated with insulin resistance.

Objective:To investigate the clinical characteristics of different stages of type 2 diabetic nephropathy(DN), and to explore the possible factors affecting visceral fat area (VFA).Methods:From September 2018 to March 2019, 464 patients with type 2 diabetes who were hospitalized in the First Affiliated Hospital of Datong University were selected.Among them, 315 patients with urinary albumin/creatinine ratio(UACR)<30 mg/g were selected as normal proteinuria group, 72 patients with UACR 30-299 mg/g were selected as microalbuminuria group, 45 patients with UACR>300 mg/g were selected as massive proteinuria group, and 32 patients with serum creatinine higher than the reference value were selected as renal failure group.The serum creatinine of the first three groups was in the normal range.The clinical data of these patients such as blood pressure, body mass index(BMI), VFA, subcutaneous fat area(SFA), brachial-ankle pulse wave velocity(BAPWV), blood lipid, renal function and blood sugar were collected and compared among the four groups.Using VFA as strain and other indicators as independent variables, multivariate linear regression analysis was carried out.Results:There were statistically significant differences among the four groups in age, height, weight, BMI, head circumference, neck circumference, waist circumference, hip circumference and waist-hip ratio ( F=15.580, 4.679, 6.186, 3.553, 3.153, 2.689, 5.170, 3.114, 3.535, all P<0.05). The VFA of the normal proteinuria group, microalbuminuria group, massive proteinuria group and renal failure group were (102.25±37.09)cm 2, (104.12±40.93)cm 2, (119.63±48.82)cm 2, (110.54±41.58)cm 2, respectively, and the BAPWV were (1 546.97±330.18)cm/s, (1 595.52 ±381.27)cm/s, (1 459.63±285.61)cm/s, (1 703.89±318.64)cm/s, the differences were statistically significant among the four groups( F=3.344, 4.020, all P<0.05). There were statistically significant differences in alanine aminotransferase, creatinine, uric acid, total cholesterol, red blood cell, hemoglobin, ratio of neutrophils to lymphocytes (NLR) and ratio of platelets to lymphocytes (PLR) among the four groups ( F=3.405, 15.535, 6.552, 2.803, 6.158, 15.580, 3.764, 3.262, all P<0.05). With VFA as strain, multivariate linear regression analysis showed that waist circumference, BMI, TG and BAPWV were risk factors for VFA. Conclusion:DN is associated with multiple obesity-related indicators and inflammatory indicators such as NLR, PLR; VFA is associated with BAPWV.

Objective: To assess the clinical effect of anisodamine combined with gabapentin on painful diabetic neuropathy(PDN). Methods: From June 2013 to February 2017, 120 patients with PDN in the Fifth People's Hospital of Datong were assigned into anisodamine group, gabapentin group and combined group according to the digital table, with 40 cases in each group, the patients were treated with anisodamine, gabapentin and combination therapy respectively.The abnormal foot plantar pressure, MCV and SCV of median nerve and common peroneus nerve, VAS and total effective rate of three groups were compared. Results: After treatment, the indicators of the combined group were improved more significantly than those of the anisodamine group and gabapentin group in abnormal foot plantar pressure[(6.10±1.66) vs.(10.80±2.64) vs.(6.37±1.44), F=14.602, P<0.01], total effective rate (92.5% vs.62.2% vs.75.0%, χ²=10.155, P=0.006), MCV[(50.33±5.54)m/s vs.(41.12±4.47)m/s vs.(42.32±4.40)m/s, F=9.404, P=0.001], and SCV of median nerve[(48.51±6.19)m/s vs.(41.81±5.72)m/s vs.(41.76±7.17)m/s, F=3.728, P=0.037], MCV of common peroneus nerve[(40.60±5.69)m/s vs.(32.04±4.47)m/s vs.(33.52±7.76)m/s, F=5.614, P=0.009]and SCV of common peroneus nerve[(42.72±4.97)m/s vs.(36.21±6.16)m/s vs.(35.45±5.54)m/s, F=4.265, P=0.025]. After treatment, the VAS scores of the three groups decreased, which were (4.49±1.61)points, (5.82±1.58)points, (6.37±1.44)points, respectively, the difference was statistically significant(F=14.602, P=0.000), and the decrease was more significant in the combined group. Conclusion Compared with the anisodamine group and gabapentin group, the combined treatment is more effective on PDN.

Objective: To study the clinical effect of fasudil plus cattle encephalon glycoside and ignotin injection in treating diabetic deafness and tinnitus. Methods: From January 2016 to December 2016, 60 patients with diabetic deafness and tinnitus in the Fifth People's Hospital of Datong were selected and randomly divided into two groups according to the digital table, with 30 cases in each group.The treatment group received fasudil injection plus cattle encephalon glycoside and ignotin injection (iv gtt), and the control group received cattle encephalon glycoside and ignotin injection.The effective rate after treatment for 10 days and 20 days were compared between the two groups. Results: Compared with the control group, the effective rate of hearing in the treatment group was not higher at 10 days after treatment (26.7% vs.16.7%, χ²=0.884, P=0.347), while it was higher in the treatment group at 20 days after treatment (53.3% vs.26.7%, χ²=4.444, P=0.035). The effective rate of tinnitus in the treatment group at 10 days after treatment was not higher compared with the control group (30.0% vs.20.0%, χ²=1.491, P=0.222), while it was higher in the treatment group at 20 days after treatment (56.7% vs.30.0%, χ²=4.344, P=0.037). As far as hearing threshold: there were no statistically significant differences between the control group and the observation group before treatment and 10 days after treatment(all P>0.05). The hearing threshold of the observation group was significantly better than that of the control group at 20 days after treatment (t=-2.511, P=0.02). Conclusion The combination therapy of fasudil injection plus cattle encephalon glycoside and ignotin injection has better efficacy for diabetic deafness and tinnitus.