Multi-omics analysis reveals the microbial interactions of S. cerevisiae and L. plantarum on Suanyu, Chinese traditional fermented fish.

S. cerevisiae and L. plantarum play important roles in Suanyu fermentation. This study investigated the interaction between S. cerevisiae and L. plantarum during fermentation and its impact on metabolic pathways. Co-culturing S. cerevisiae and L. plantarum increased pH to 5.72, reduced TVB-N to 9.47 mg/mL, and achieved high utilization rates of sugars (98.9%) and proteins (73.7%). During microbial interactions, S. cerevisiae and L. plantarum produced antibiotics, including phenyllactate and Gentamicin C1a, inhibiting the growth of each other. S. cerevisiae used S-adenosyl-l-methionine to counteract acid production of L. plantarum, establishing dominance in Suanyu fermentation. Microbial interactions influenced carbohydrate and energy metabolism pathways, such as nicotinate and nicotinamide metabolism and purine metabolism. S. cerevisiae significantly impacted gene expression in protein synthesis and cell growth pathways, including ribosome, SNARE interactions, basal transcription factors, and MAPK signaling. These findings offer insights into microbial interactions and metabolic processes during Suanyu fermentation.

Analysis of the nail microbiome in patients with onychomycosis by high-throughput sequencing of 16S rDNA and internal transcribed spacer regions / 中华皮肤科杂志

Objective:To investigate differences in bacterial and fungal microbiome between infected nails and healthy nails among patients with onychomycosis.Methods:Nail scraping samples were collected from infected nails and healthy nails of 31 patients with onychomycosis, who visited Dalian Dermatosis Hospital from August 2020 to July 2021. The total DNA of nail microbiota was extracted, and the V3-V4 regions of the bacterial 16S rDNA gene and the fungal internal transcribed spacer (ITS) region were amplified and sequenced using Illumina technology. The USEARCH and mothur softwares were used for data cluster analysis to obtain the operational taxonomic units (OTUs) , Wilcoxon rank sum test was used to analyze α diversity, analysis of similarities (ANOSIM) was performed to analyze β diversity, linear discriminant analysis of effect size (LEfSe) was performed to evaluate the species difference.Results:Among the 31 patients with onychomycosis, 16 were males and 15 were females. According to the age, they were divided into young group (18 - 35 years old, 10 cases) , middle-aged group (36 - 60 years old, 11 cases) , and elderly group (over 60 years old, 10 cases) . As the α-diversity analysis revealed, the infected nail group showed significantly decreased Shannon index ( W = 290, P = 0.007) , but significantly increased Simpson index ( W = 663, P = 0.010) compared with the healthy nail group, suggesting that the diversity and evenness of bacterial communities were lower in the infected nail group than in the healthy nail group; however, there was no significant difference in the diversity of fungal communities between the infected nail group and healthy nail group. The β-diversity analysis based on the unweighted-UniFrac distance matrix showed no significant difference in the fungal or bacterial community composition between the infected nail group and healthy nail group (bacterial communities: R = 0.0052, P = 0.331; fungal communities: R = 0.0036, P = 0.337) ; the β-diversity analysis based on the weighted-UniFrac distance matrix showed significant differences in the abundance of bacterial and fungal communities between the two groups (both P = 0.001) . In terms of the species composition, the bacterial flora with significantly decreased abundance in the infected nail group compared with the healthy nail group included Bacteroidetes, Proteobacteria, Betaproteobacteria, Burkholderiales, Ralstonia, Sphingomonas and Streptococcus, while the abundance of Bacilli, Bacillales and Staphylococcus was significantly higher in the infected nail group than in the healthy nail group. Compared with the healthy nail group, the fungal flora with significantly increased abundance in the infected nail group included Eurotiomycetes, Onygenales, Leotiomycetes-ord-incertae-sedis, Arthrodermataceae, Periconia, Erysiphe, Tilletiopsis, Trichophyton, Erysiphe cruciferarum, Trichophyton rubrum, Malassezia sympodialis, while the abundance of Saccharomycetes, Saccharomycetales, Saccharomycetaceae, Dothioraceae, Candida and Alternaria was significantly lower in the infected nail group than in the healthy nail group. Conclusion:The diversity and abundance of bacterial communities significantly differed between infected nails and healthy nails among patients with onychomycosis, while only the abundance of fungal communities differed between the two groups, and perhaps there was correlations between some bacterial and fungal communities.

The diagnostic value of neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio in severe Mycoplasma pneumoniae pneumonia / 中华实用儿科临床杂志

Objective:To study the value of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in diagnosing severe Mycoplasma pneumoniae pneumonia (MPP).Methods:A total of 616 cases of MPP patients in the Children′s Hospital of Soochow University from January 2015 to December 2017 were retrospectively analyzed.During the same period, 100 healthy children were selected as the healthy control group.NLR and PLR between MPP group and healthy control group, and those between severe MPP group and ordinary MPP group were compared by t test or rank sum test.Risk factors for severe MPP were identified.Receiver operating characteristic(ROC) curves were plotted to identify the cut-off point of NLR and PLR in distinguishing MPP from healthy subjects. Results:(1)The median of white blood cell count (WBC), neutrophil count (N), platelet count (PLT), NLR, PLR, immunoglobulin M (IgM) and the median percentage of CD3 -CD 19+ , CD 19+ CD 23+ in MPP group were significantly higher than those in healthy control group(8.36×10 9/L vs.7.49×10 9/L, 4.41×10 9/L vs.3.11×10 9/L, 340.92×10 9/L vs.234.00×10 9/L, 1.70 vs.0.91, 112.99 vs.70.34, 1.33 g/L vs.1.29 g/L, 20.95% vs.17.10%, 11.25% vs.9.70%), whereas the median of lymphocyte count (L), IgA and the median percentage of CD3 + , CD3 + CD8 + , and CD3 -CD +(16+ 56) were significantly lower(2.64×10 9/L vs.3.37×10 9/L, 0.86 g/L vs.1.30 g/L, 64.55% vs.68.00%, 23.65% vs.24.90%, 10.50% vs.12.20%)( Z=-3.074, -2.413, -2.972, -1.357, -1.863, -2.251, -4.282, -3.420, -2.221, -4.181, -2.784, -2.024, -2.791, all P<0.05). (2)The median of N, NLR, PLR, IgA, IgG, IgM and the average of percentage of CD3 + , CD3 + CD8 + in severe MPP group were significantly higher than those in ordinary MPP group[5.18×10 9/L vs.3.52×10 9/L, 2.39 vs.1.03, 149.32 vs.94.23, 1.29 g/L vs.0.71 g/L, 9.63 g/L vs.8.19 g/L, 1.40 g/L vs.1.29 g/L, (65.53±9.75)% vs.(62.81±9.89)%, (25.35±6.65)% vs.(23.38±6.91)%], whereas the median of L, the median percentage of CD3 -CD 19+ , and CD 19+ CD 23+ were significantly lower than those of ordinary MPP group(2.02×10 9/L vs.3.25×10 9/L, 17.40% vs.21.50%, 9.00% vs.11.70%)( Z/ t=-7.807, -11.313, -10.452, -8.819, -6.162, -3.047, -3.128, -3.270, -9.402, -5.191, -5.214, all P<0.05). (3)Univariate and multivariate Logistic regression analysis showed that CD3 -CD 19+ was the protective factor for severe MPP, while N, NLR and PLR were the risk factors for severe MPP (all P<0.05), with the risk sequence of NLR>PLR>N.(4)Area under ROC curve analysis of NLR and PLR in the diagnosis of severe MPP: NLR: AUC=0.789, 95% CI: 0.754~0.823, P<0.001; PLR: AUC=0.767, 95% CI: 0.730~0.804, P<0.001; when the critical value of NLR was 1.09, the sensitivity was 98.9%, and the specificity was 70.6%.When the critical value of PLR was 97.47, the sensitivity and specificity were 88.5% and 69.4%. Conclusions:NLR and PLR can be served as independent influencing factors for severe MPP, showing the diagnostic potential in severe MPP.

A multi-center survey of medical staffs′ cognition and management of prolonged mechanical ventilation in pediatric intensive care unit / 中国小儿急救医学

Objective:To investigate the status of cognition and clinical management of prolonged mechanical ventilation(PMV) among medical staffs in pediatric intensive care unit(PICU) in China, and in order to improve the awareness of PICU medical staffs on PMV and standardize the management of PMV.Methods:The cross-sectional study was conducted with doctors and nurses in PICUs of the collaborative group as the survey objects from July 12 to September 12, 2020.The questionnaire was issued, collected and checked by the Children′s Hospital of Fudan University.Results:(1) PMV related settings: Nine out of eleven hospitals had established PMV multidisciplinary teams, respiratory techniques such as diaphragm ultrasound and airway peak flow monitoring could be respectively executed in 72.7% and 36.4% of PICU.Pulmonary rehabilitation techniques such as airway clearance techniques, induced spirometer exercise, external diaphragm pacemaker stimulation, transfer bed exercise, balloon blowing, hyperbaric oxygen therapy could be respectively executed in 100.0%, 9.1%, 9.1%, 9.1%, 27.3% and 27.3% of PICU, respectively.(2) The cognitive status quo of children′s PMV: The most medical staffs agreed with the view that PMV referred to the children′s continuous mechanical ventilation for more than two weeks.Sixty percent of medical staffs believed that children with PMV had basic central nervous system diseases, and 62.7% of medical staffs believed that the most common causes of difficulty in PMV weaning was abnormal brain function.(3) The cognitive status quo of the children′s PMV management in PICU: Respondents believed that the most commonly used mechanical ventilation mode was synchronized intermittent mandatory ventilation+ pressure support ventilation in children′s PMV during stable disease.Ninety-two percent of medical staffs performed the spontaneous breathing test when weaning.And 58.7% of the respondents agreed to perform tracheotomy for the children during 3 to 4 weeks of mechanical ventilation.More than half of medical staffs would execute diaphragm function assessment, bedside rehabilitation training, nutritional assessment, analgesia and sedation assessment for children with PMV.(4) The cognitive status quo of the children′s PMV management of transition from hospital to family: 54.5% of PICU provided family care training to the family members before the children were discharged from the hospital.One center established the PMV specialized outpatient clinic.45.5% of PICU would follow up these discharged children one month later.Conclusion:At present, PICU medical staffs have different awareness of children′s PMV related problems in China.And children′s PMV lacks a systematic plan regarding diagnosis, treatment and management.

Subcellular localization of serine hydrolases 1 protein in Microsporum canis / 中华皮肤科杂志

Objective:To analyze the subcellular localization of family of serine hydrolases 1 (FSH1) protein in Microsporum canis. Methods:The FSH1 and enhanced green fluorescent protein (EGFP) genes were amplified by PCR using the previously constructed plasmid containing the FSH1 gene and the recombinant plasmid pCAMBIA-LRP-EGFP as the template; the vector DNA was obtained by double-enzyme digestion of the recombinant plasmid pCAMBIA-LRP-EGFP with SnaBI/KpnI. Then, the EGFP expression plasmid and Ptrcp-FSH1-EGHP-Ttrcp fusion plasmid were constructed by inserting the amplified EGFP gene and EGFP-FSH1 gene into the vector DNA respectively, and identified by PCR and sequencing. The two recombinant plasmids were transformed into Microsporum canis by an Agrobacterium tumefaciens-mediated method, and the gene EGFP and fusion gene FSH1-EGFP were expressed integratedly in Microsporum canis under the regulation by the fungal universal promoter Ptrpc and terminator Ttrpc. The cellular localization of the fusion protein was observed by laser scanning confocal microscopy. Results:The Agrobacterium tumefaciens-mediated transformation system and EGFP expression vector in Microsporum canis were successfully constructed; the fusion gene FSH1-EGFP was expressed integratedly in Microsporum canis. Laser confocal microscopy showed that fluorescence signals of the FSH1-EGFP fusion protein were concentrated in the cytoplasm and nuclei of Microsporum canis, with a granular or cluster-like appearance. Conclusion:The FSH1-EGFP fusion protein was successfully localized in the cytoplasm and nuclei of Microsporum canis, providing a basis for further clarifying the function and pathogenic mechanisms of the FSH1 gene in Microsporum canis.

Tai Chi therapy for elderly patients with type 2 diabetes mellitus: a randomized controlled trial / 国际中医中药杂志

Objective To observe the effect of Tai Chi combined with conventional western medicine therapy for elderly patients with type2 diabetes mellitus. Methods According to randomized controlled design, 108 patients were divided into two groups ,with 54 in each group. Patients in control group were treated with conventional western medicine therapy and regular walk (three times per week), while the patients in the observation group were treated with conventional western medicine therapy and Tai Chi (three times per week), both groups were treated for 12 weeks. Before and after treatments, diabetes symptoms scale was used to assess disease conditions, FPG and HbA1c were detected separately by methods of HK (hexokinase) and High Performance Liquid Chromatography (HPLC), Diabetes mellitus Specific Quality of Life scale (DSQL) were used to assess the quality of life, Self-Efficacy for Managing Chronic Disease 6-Item Scale (SES6G) was used to assess patients’ self-management ability, and Geriatric Depression Scale was used to assess patients' depression emotions. Results After treatments, the clinical symptoms scores (1.79 ± 1.21 vs. 2.86 ± 1.66, t=-3.401), the DSQL scores (50.40 ± 10.88 vs. 56.00 ± 10.85, t=-2.156), the GDS scores (5.63 ± 0.71 vs. 6.08 ±0.91, t=-2.515) of observation group were significantly lower than that of control group (P<0.01 or P<0.05), and the SES6G scores (7.54 ± 0.59 vs. 6.89 ± 0.39, t=-5.987) of observation group were significantly higher than that of control group (P<0.01); after treatments, the D-value of FPG (-0.97 ± 1.54 mmol/L vs.-0.28 ± 1.74 mmol/L, t=-2.092) was significantly higher than that of control group (P<0.05). Conclusions The Tai Chi combined with conventional western medicine therapy could alleviate clinical symptoms and negative emotions, improve disease management and quality of life, regulate blood glucose of elderly patients with type 2 diabetes mellitus.

Localization of PQ-LRP protein in Microsporum canis / 中华皮肤科杂志

Objective To determine the location of PQ-LRP protein in Microsporum canis using the enhanced green fluorescent protein(EGFP)as a marker.Methods The total RNA was extracted from Microsporum canis,and reversely transcribed into cDNA.The PQ-LRP gene was amplified by PCR using the above cDNA as the template.The fusion gene of PQ-LRP gene and EGFP gene was linked to the plasmid pCAMBIA 1300.Microsporum canis was subjected to Agrobacterium tumefaciens-mediated transformation,in order to achieve the integrated expression of the fusion gene LRP-EGFP in Microsporum canis under the regulation by the fungal universal promoter Ptrpc and terminator Ttrpc.Laser-scanning confocal microscopy was conducted to determine the cellular localization of the fusion protein.Results The expression vector pCAMBIA-LRP-EGFP was successfully constructed,and the fusion gene LRP-EGFP was expressed integratedly in Microsporum canis.Laser-scanning confocal microscopy showed that fluorescence signals of LRP-EGFP were concentrated on the cell membrane of Microsporum canis,giving a granular or cluster-like appearance.Conclusion The infusion gene LRP-EGFP can be successfully expressed in Microsporum canis,and PQ-LRP protein is located on the cell membrane of Microsporum canis.

Tai Chi therapy for elderly patients with type 2 diabetes mellitus: a randomized controlled trial / 国际中医中药杂志

Objective@#To observe the effect of Tai Chi combined with conventional western medicine therapy for elderly patients with type2 diabetes mellitus.@*Methods@#According to randomized controlled design, 108 patients were divided into two groups ,with 54 in each group. Patients in control group were treated with conventional western medicine therapy and regular walk (three times per week), while the patients in the observation group were treated with conventional western medicine therapy and Tai Chi (three times per week), both groups were treated for 12 weeks. Before and after treatments, diabetes symptoms scale was used to assess disease conditions, FPG and HbA1c were detected separately by methods of HK (hexokinase) and High Performance Liquid Chromatography (HPLC), Diabetes mellitus Specific Quality of Life scale (DSQL) were used to assess the quality of life, Self-Efficacy for Managing Chronic Disease 6-Item Scale (SES6G) was used to assess patients’ self-management ability, and Geriatric Depression Scale was used to assess patients' depression emotions.@*Results@#After treatments, the clinical symptoms scores (1.79 ± 1.21 vs. 2.86 ± 1.66, t=-3.401), the DSQL scores (50.40 ± 10.88 vs. 56.00 ± 10.85, t=-2.156), the GDS scores (5.63 ± 0.71 vs. 6.08 ±0.91, t=-2.515) of observation group were significantly lower than that of control group (P<0.01 or P<0.05), and the SES6G scores (7.54 ± 0.59 vs. 6.89 ± 0.39, t=-5.987) of observation group were significantly higher than that of control group (P<0.01); after treatments, the D-value of FPG (-0.97 ± 1.54 mmol/L vs. -0.28 ± 1.74 mmol/L, t=-2.092) was significantly higher than that of control group (P<0.05).@*Conclusions@#The Tai Chi combined with conventional western medicine therapy could alleviate clinical symptoms and negative emotions, improve disease management and quality of life, regulate blood glucose of elderly patients with type 2 diabetes mellitus.

Advance in Ultrasound Elastography for Evaluation of Spasticity (review) / 中国康复理论与实践

@#Spasticity is one of common manifestations of upper motor neuron injury, and often evaluated with semi-quantitative scales. Ultrasound elastography (UE) can provide elastic information for muscle tissue, and can be used for the evaluation of muscle tension after cerebral palsy and stroke, as well as the efficacy of treatment. It correlates well with clinical spasm rating scales. However, UE may also be used for assessment of spasticity after spinal cord injury and multiple sclerosis, etc.

The Association of SNP on Chromosome 9p21 with Myocardial Infarction in Yunnan Yi nationality / 中国生化药物杂志

Objective To investigate the relationship between 9p21 single nucleotide polymorphism (SNP) and myocardial infarction(MI) in Yunnan Yi nationality. Methods One hundred and ten patients with MI and 110 controls were enrolled. DNA sequencing was used to detect 9p21 gene locus and SNP typing and analysis. Results Hardy-Weinberg equilibrium was found in 9 sites of chromosome 9p21 in myocardial infarction group and control group.The frequency of rs1333049 GG genotype was 30.91% and 18.18% in case group and control group respectively, G The frequencies of rs2383206 GG genotype were 31.82% and 18.18%, respectively, and the frequencies of G allele were 55.3% and 41.1%, respectively. There were significant differences between the two groups 58.3% and 44.9%, The difference between the two groups was statistically significant(P<0.05). Conclusion This study demonstrates an association of rs1333049 polymorphism locus on chromosome 9p21 with risk for MI in in Yunnan Yi nationality.