1.Clinical significance of detecting group B Streptococcus from midstream urine culture
Xing-Long CAI ; Xiao-Li CAO ; Jing-Jing LIU ; Shuo GAO ; Han SHEN ; Wan-Qing ZHOU
Chinese Journal of Infection Control 2024;23(3):277-283
Objective To explore the clinical significance and antimicrobial resistance of group B Streptococcus(GBS)isolated from midstream urine culture,aiming to provide a basis for the diagnosis and treatment of clinical urinary tract infection(UTI).Methods Information about GBS strains isolated from midstream urine culture of in-patients and outpatient in a hospital in Nanjing from February 2020 to December 2022 were retrieved through labora-tory information system,strains with complete data were screened out.Case data,urine routine,and antimicrobial susceptibility testing results were reviewed.Results A total of 9 081 non-repetitive bacterial strains were detected from midstream urine culture,including 425 GBS strains,accounting for 4.7%,ranking sixth.Strains with incom-plete data were excluded,a total of 365 patients were included in the study.169(46.3%)were males and 196(53.7%)were females,with an average age of(55.4±15.2)years.365 patients who were detected GBS were from 17 de-partments,with the highest proportion being department of urology(n=237,64.9%).The underlying diseases of patients mainly included hypertension(n=136),diabetes(n=95),urolithiasis(n=120)and urinary tumors(n=98).211 patients underwent urological surgery,all were treated with antimicrobial agents before surgery,and 205 patients underwent indwelling urinary catheters after surgery;9 patients were detected GBS from urine during the middle and advanced stage of pregnancy.36.4%(n=133),38.9%(n=142)and 24.7%(n=90)patients had GBS colony count ≤104 CFU/mL,104-105 CFU/mL,and ≥105 CFU/mL,respectively.Patients with symptoms of UTI accounted for 24.9%(n=91),and asymptomatic bacteriuria accounted for 75.1%(n=274).The incidence of UTI symptoms in males was lower than that in females(19.5%vs 29.6%,P<0.05).As the GBS colony count in urine culture increased,the proportion of patients with symptoms of UTI showed an upward trend(P<0.05).On the day of urine culture,the positive rates of urine routine white blood cells,leukocyte esterase,and nitrite were 53.2%,50.1%,and 3.8%,respectively.The positive rates of urine occult blood,leukocyte esterase,white blood cells,and urine protein in patients with symptomatic UTI were all higher than those with asymptomatic bacteriuria patients(all P<0.05).No GBS were found to be resistant to penicillin,ampicillin,vancomycin,linezolid,and tigecycline.The resistance rate to levofloxacin and moxifloxacin was about 40%,and resistance rate to tetracycline and clindamycin was over 60%.Conclusion GBS isolated from urine is more common in non-pregnant adults,and only a small percentage have symptoms of UTI.The results of urine culture and urine routine should be comprehen-sively judged based on patient's clinical symptoms and signs.GBS in urine is susceptible to multiple antimicrobial agents,and clinical medication should be adopted rationally based on antimicrobial susceptibility testing result.
2.Correlation of serum soluble Klotho protein and tendino-C with severity of disease and oxidative stress in children with IgA nephropathy
Chujiang CAO ; Hongbing CAI ; Huaying YANG ; Dan CHEN ; Danni WAN
International Journal of Laboratory Medicine 2024;45(4):430-434
Objective To analyze the correlation between serum soluble Klotho protein(sKL)and tendino-C(TN-C)and the severity of disease and oxidative stress in children with immunoglobulin A(IgA)nephropa-thy.Methods A total of 85 children with IgA nephropathy admitted to the hospital from July 2019 to August 2022 were selected as IgA nephropathy group,and 85 healthy patients who underwent physical examination in the hospital during the same period were selected as healthy group.Serum sKL and TN-C levels were com-pared between the two groups.Receiver operating characteristic(ROC)curve was drawn to analyze the value of serum sKL,TN-C and their combination in predicting the occurrence of IgA nephropathy.IgA nephropathy group was divided into mild group(28 cases),moderate group(39 cases)and severe group(18 cases)accord-ing to 24 h urinary protein quantity.Serum sKL,TN-C levels and oxidative stress indexes[malondialdehyde(MDA),superoxide dismutase(SOD)and advanced oxidation protein product(AOPP)]of the three groups were compared.The correlation between serum sKL and TN-C levels and oxidative stress indexes was ana-lyzed by Spearman correlation,and the correlation between serum sKL and TN-C levels and the severity of IgA nephropathy in children was examined by Kendall's Tau-b.Results The serum sKL level in IgA ne-phropathy group was lower than that in healthy group,and the serum TN-C level was higher than that in healthy group,the difference was statistically significant(P<0.05).ROC curve showed that the area under the curve and 95%CI of serum sKL,TNC and their combination predicted the occurrence of IgA nephropathy were 0.726(95%CI:0.648-0.803),0.853(95%CI:0.796-0.909)and 0.891(95%CI:0.845-0.937).The level of serum sKL in severe group was lower than that in moderate and mild groups,while the level of serum TN-C was higher than that in moderate and mild groups,and the difference was statistically significant(P<0.05).The serum SOD level of severe group was lower than that of moderate group and mild group,and the serum AOPP and MDA levels were higher than those of moderate group and mild group,the difference was statistically significant(P<0.05).Spearman correlation showed that sKL level was positively correlated with SOD(r>0,P<0.05),and negatively correlated with AOPP and MDA(r<0,P<0.05).TN-C level was negatively correlated with SOD(r<0,P<0.05),and positively correlated with AOPP and MDA(r>0,P<0.05).Conclusion The levels of serum sKL and TN-C in children with IgA nephropathy are related to the severity of disease and oxidative stress,and the combination of SKL and TN-C can effectively predict the occurrence of IgA nephropathy.
3.Identification and Expression Analysis of PP2C Gene Family Members in Cannabis sativa
Xiaoxue CAI ; Sifan WANG ; Yaolei MI ; Huihua WAN ; Xue CAO ; Wei SUN ; Chang SU ; Shilin CHEN ; Yanqin XU ; Weiqiang CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(19):162-172
ObjectiveThe type 2C protein phosphatases (PP2C) are involved in numerous plant signal transduction pathways. They mainly participate in plant stress response and regulate second metabolites biosynthesis via negatively regulating MAPK signaling pathway. Herein,we were to identify and analyze PP2C (CsPP2C) gene family from hemp genome,in hope of providing comprehensive insights for studying CsPP2C function during the development of hemp. MethodMolecular Evolutionary Genetics Analysis (MAGA)-X was used to construct phylogenetic tree. Expert Protein Analysis System (ExPASy),WoLF PSORT,Multiple EM for Motif Elicitation (MEME),Batch Conserved Domain Search (Batch-CD-Search),PlantCare,and TBtools were used,respectively,to predict CsPP2C physicochemical properties,subcellular localization,conserved motifs,protein structure,cis-element in promoter and collinearity with Arabidopsis PP2C. Cannabis sativa transcriptome and Real-time polymerase chain reaction(Real-time PCR) were used to analyze and verify gene expressions,respectively. ResultFifty-two CsPP2C with conserved domains were identified from the entire genome of hemp,encoding proteins ranging from 244 to 1 089 aa in length and with molecular weights ranging from 26.76 to 122.53 kDa. Those genes were mainly distributed in the nucleus,cytoplasm and chloroplast. The 47 CsPP2C were divided into 10 subfamilies,and the remaining 5 were not clustered. Seven pairs of homologous genes between hemp and Arabidopsis thaliana were identified according to collinear analysis. The light-responsive elements and abscisic acid elements are most abundant in the prediction. The gene expression heat map showed varied expression pattern of CsPP2C in different tissues. Real-time PCR results of three CsPP2C were consistent with transcriptome data. Moreover,alternative splicing analysis showed that some CsPP2C had alternative-splicing genes during evolution. ConclusionWe predicted and analyzed CsPP2C gene family in genomic scale and showed that CsPP2C are involved in many biological processes,whereby provides foundation for CsPP2C functional study.
4. FNDC5 Regulates the Adipogenic Differentiation of C3H10T1/2 Cells by Inhibiting the Phosphorylation of ERK1/2
Wei HEI ; Zhi-Qiang HE ; Yan-Wei ZHANG ; Wan-Feng ZHANG ; Chun-Bo CAI ; Yang YANG ; Peng-Fei GAO ; Xiao-Hong GUO ; Guo-Qing CAO ; Bu-Gao LI
Chinese Journal of Biochemistry and Molecular Biology 2021;37(5):644-652
The aim of this study was to explore the regulatory mechanism of Type Ⅲ domain-containing protein5 (FNDC5) on adipogenic differentiation in C3H10T1/2 cells. qRT-PCR and Western blot were used to detect the expression of FNDC5 during adipogenic differentiation of C3H10T1/2 cells. The lentivirus-coated overexpression and interference vector of FNDC5 were constructed and transfected into C3H10T1/2 cells. qRT-PCR was used to detect the expression of the key genes of adipogenic differentiation. Oil red O staining was used to detect the formation of lipid droplets; Western blot was used to detect the content of ERK1/2 and ERK1/2 phosphorylated protein (P-ERK1/2). After 8 days of adipogenic differentiation of C3H10T1/2 cells, the expression of Fndc5 increased significantly. After overexpression of FNDC5 in C3H10T1/2 cells, the expression of key genes for adipogenic differentiation, including peroxisome proliferator-activated receptor-酌 (PPAR酌), CCAAT enhancer binding protein beta (C/EBP茁), fatty acid binding protein 4 (FABP4) and CCAAT enhancer binding protein alpha (C/EBPα), all decreased significantly. The content of lipid droplets and P-ERK1/2 also decreased significantly. On the contrary, after interference of FNDC5 in C3H10T1/2 cells, the expression of key genes for adipogenic differentiation, including PPARγ, C/EBP茁, FABP4 and C/EBPα were significantly increased. Meanwhile, the content of lipid droplets and P-ERK1/2 also increased significantly. This study found that FNDC5 can inhibit the adipogenic differentiation of C3H10T1/2 cells by inhibiting the phosphorylation level of ERK1/2, which can provide reference data for the mechanism of FNDC5 in regulating fat deposition.
5.Investigation on nutritional knowledge, attitude and practice in patients during waiting period for lung transplantation and analysis of its influencing factors
Xiaofen SHI ; Yinghua CAI ; Haiqin ZHOU ; Caixia HU ; Lei CAO ; Xia WAN
Chinese Journal of Modern Nursing 2020;26(11):1439-1444
Objective:To explore the nutritional knowledge, attitude and practice (KAP) in patients during the waiting period for lung transplantation, analyze its influencing factors, and provide a reference for individualized nutritional intervention during the perioperative period of lung transplantation.Methods:Totally 240 patients during the waiting period for lung transplantation after lung transplantation evaluation in The Respiratory Center, Wuxi People's Hospital between January and December 2018 were selected using convenient sampling, and investigated with the self-made nutritional KAP questionnaire for patients during the waiting period for lung transplantation. And the influencing factors to their nutritional KAP were analyzed.Results:The nutritional knowledge of patients during the waiting period for lung transplantation was average, with a score of (18.71±4.53) ; the nutritional attitude was good, with a score of (38.00±6.49) ; the nutritional practice was average, with a score of (36.75±4.89) . Multiple linear regression analysis showed that the influencing factors of nutritional knowledge were economic status and whether it was complication with neurological diseases ( P<0.05) ; the influencing factors of nutritional attitude were occupation and serum protein ( P<0.05) ; the influencing factors of nutritional practice were age, educational level and whether it was complicated with urinary system disease ( P<0.05) . Conclusions:The nutritional KAP of patients during the waiting period for lung transplantation is affected by age, economic status, comorbidity, occupation and educational level and serum protein. In the perioperative nutritional management of lung transplantation patients, we should fully consider various factors, provide targeted and precision nutritional interventions, improve the nutritional practice and status of patients by improving their nutritional knowledge and attitude.
7. Correlation between the stenosis degree of aorto-iliac artery and superior mesenteric artery in patients with lower extremity atherosclerotic occlusive disease by CT angiography
Huaqi CAI ; Fei FU ; Yang WANG ; Jinbao LI ; Jianpeng CAO ; Mei HUANG ; Sipin LUO ; Xiaochen WEI ; Yeda WAN
Chinese Critical Care Medicine 2018;30(7):635-639
Objective:
To investigate the correlation between the stenosis degree of superior mesenteric artery (SMA) and each artery within the scope of aorto-iliac artery in patients with lower extremity atherosclerotic occlusive disease (LEAOD).
Methods:
Images of 70 patients who had undergone the aorta-iliac-femoral arteries CT angiography (CTA) examination and had a definite diagnosis of LEAOD due to intermittent claudication or resting pain admitted to Tianjin Hospital from January to December in 2017 were enrolled. The arteries in the aorta as well as iliac were surface-reconstructed, which were analyzed by advanced vascular analysis (AVA) combined with the original images, including SMA trunk, abdominal aorta (AA), left and right common iliac artery (LCIA, RCIA), left and right internal iliac artery (LIIA, RIIA), left and right external iliac artery (LEIA, REIA). The normal reference plane and the maximal stenosis plane were selected, and the stenosis rate of each artery in the reconstruction range was automatically calculated with software. The patient's imaging data were divided into groups with two methods: ① according to the degree of SMA stenosis, the patients were divided into group Ⅰ (stenosis degree ≤70%) and groupⅡ (stenosis degree > 70%); ② LEAOD patients with different gender were respectively divided into three groups: middle-aged group (45-59 years old), pre-elderly group (60-74 years old) and elderly group (75-89 years old). The comparison between the stenosis degree of SMA and each artery within the scope of aorto-iliac artery was analyzed with Pearson simple correlation analysis.
Results:
The incidence of SMA stenosis in all LEAOD patients was 100%. Correlation analysis showed that there was no correlation between the stenosis degree of SMA and AA, LCIA, RCIA, LIIA, RIIA, LEIA, or REIA in group Ⅰ (
8.Correlation between the stenosis degree of aorto-iliac artery and superior mesenteric artery in patients with lower extremity atherosclerotic occlusive disease by CT angiography.
Huaqi CAI ; Fei FU ; Yang WANG ; Jinbao LI ; Jianpeng CAO ; Mei HUANG ; Sipin LUO ; Xiaochen WEI ; Yeda WAN
Chinese Critical Care Medicine 2018;30(7):635-639
OBJECTIVE:
To investigate the correlation between the stenosis degree of superior mesenteric artery (SMA) and each artery within the scope of aorto-iliac artery in patients with lower extremity atherosclerotic occlusive disease (LEAOD).
METHODS:
Images of 70 patients who had undergone the aorta-iliac-femoral arteries CT angiography (CTA) examination and had a definite diagnosis of LEAOD due to intermittent claudication or resting pain admitted to Tianjin Hospital from January to December in 2017 were enrolled. The arteries in the aorta as well as iliac were surface-reconstructed, which were analyzed by advanced vascular analysis (AVA) combined with the original images, including SMA trunk, abdominal aorta (AA), left and right common iliac artery (LCIA, RCIA), left and right internal iliac artery (LIIA, RIIA), left and right external iliac artery (LEIA, REIA). The normal reference plane and the maximal stenosis plane were selected, and the stenosis rate of each artery in the reconstruction range was automatically calculated with software. The patient's imaging data were divided into groups with two methods: (1) according to the degree of SMA stenosis, the patients were divided into group I (stenosis degree ≤70%) and group II (stenosis degree > 70%); (2) LEAOD patients with different gender were respectively divided into three groups: middle-aged group (45-59 years old), pre-elderly group (60-74 years old) and elderly group (75-89 years old). The comparison between the stenosis degree of SMA and each artery within the scope of aorto-iliac artery was analyzed with Pearson simple correlation analysis.
RESULTS:
The incidence of SMA stenosis in all LEAOD patients was 100%. Correlation analysis showed that there was no correlation between the stenosis degree of SMA and AA, LCIA, RCIA, LIIA, RIIA, LEIA, or REIA in group I (n = 64) and group II (n = 6), respectively (r value was -0.021, 0.023, 0.023, -0.137, 0.182, -0.113, 0.141, respectively, in group I, and it was 0.020, -0.560, 0.010, 0.306, -0.204, -0.381, 0.393, respectively, in group II, all P > 0.05). In 52 male patients, there was no correlation between the stenosis degree of SMA and AA, LCIA, RCIA, LIIA, RIIA, LEIA, or REIA in middle-aged group (n = 16), pre-elderly group (n = 27) and elderly group (n = 9), respectively (r value was -0.032, 0.024, 0.324, 0.146, 0.312, 0.008, 0.344, respectively, in middle-aged group, it was -0.108, -0.116, -0.040, -0.249, -0.082, -0.052, 0.096, respectively, in pre-elderly group, and it was 0.182, 0.311, 0.400, 0.360, 0.688, 0.498, 0.406, respectively, in elderly group, all P > 0.05). In 18 female patients, there was also no correlation between the stenosis degree of SMA and above each artery within the scope of aorto-iliac artery in pre-elderly group (n = 11) and elderly group (n = 6), respectively (the r value was -0.170, 0.040, -0.019, 0.152, 0.508, 0.042, 0.456, respectively, in pre-elderly group, and it was -0.660, 0.008, -0.055, -0.056, -0.213, 0.344, 0.011, respectively, in elderly group, all P > 0.05). The correlation in middle-aged group was not analyzed because there was only 1 patient.
CONCLUSIONS
Although the atherosclerotic changes in LEAOD patients can affect SMA and aorto-iliac artery at the same time, there was no correlation between the stenosis degree of SMA and each artery within the scope of aorto-iliac artery which may due to the differences in the histological structure and hemodynamics among different arteries. SMA atherosclerotic stenosis and occlusion is a relatively independent disease process for LEAOD.
Aged
;
Aged, 80 and over
;
Computed Tomography Angiography
;
Constriction, Pathologic
;
Female
;
Humans
;
Iliac Artery
;
Lower Extremity
;
Male
;
Mesenteric Artery, Superior
;
Middle Aged
9.Effect of diabetic liaison nurses on control of blood sugar levels in patients with hyperglycemiain in department other than endocrinology
Yinghua CAI ; Xia WAN ; Xiaojuan YAO ; Haifeng SUN ; Jing TAN ; Mingzhu CHEN ; Rong CAO ; Qun LU
Modern Clinical Nursing 2016;15(8):42-45
Objective To explore the effect of diabetic liaison nurses on controlling blood sugar levels in patients with hyperglycemia in department other than endocrinology. Methods Four hundred diabetic patients with high blood sugar were selected from January to December, 2014 in department other than endocrinology. They were divided randomly into 2 groups equally:the control group and the observation group. The control group received traditional nursing care, while blood sugar management was carried out by diabetic liaison nurse in the observation group. Result Pre-discharge sugar metabolism in the observation group was significantly better than that in the control group (P<0.05). Conclusion The diabetic liaison nurses in other departments than the endocrinology department can help control blood sugar levels in patients with hyperglycemiain.
10.Effect of Miao Nationality Herbs Spray for Serum SOD, MDA and Expression of Fas-mRNA and Caspase-3 mRNA in Lung Tissues of Silica-treated Rats
Gao HUANG ; Guangzhi HE ; Guixi SONG ; Xia LIU ; Feng CAO ; Wenjia WANG ; Yuchen LIU ; Changfu YANG ; Kun CAI ; Bangxiang XU ; Chuan QIN ; Jinhuo WAN ; Zhenlian LUO ; Jianmei HUANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(5):1172-1177
This study was aimed to prepare the spraying agent of prescriptions of Miao nationality herb and investigate the effect of Miao nationality herbs spray for serum SOD, MDA, and expression of Fas and Caspase-3 mRNA in lung tissues of silica-treated rats. The healthy SD rats were divided into 5 groups. Silica dust suspension was used in the model establishment of 4 groups. After the model was successfully established, 3 groups were randomly selected and given glucocorticoids atomization inhalation, Miao nationality herbs spray, Miao nationality herbs spray combined with intragastric administration of herbal medicine, respectively. After 40-day treatment, water-solubletetrazolium salt (WST-1) was used in the detection of serum superoxide dismutase (SOD). Thiobarbituric acid (TBA) was used in the detection of malondialdehyde (MDA). The mRNA expression variance of the Fas and Caspase-3 were detected by RT-PCR. The results showed that compared with the silica dust suspension group, the SOD activity of serum in the Miao nationality herbs spray group was significantly increased (P< 0.05). MDA content and the mRNA of Fas and Caspase-3 were significantly lower in the Miao nationality herbs spray group (P< 0.05). It was concluded that Miao nationality herbs spray group was able to increase the SOD activity of serum, decrease MDA content, and obviously decrease the expression of Fas and Caspase-3 of lung tissues among silica dust suspension rats.

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