Child, Preschool ; Female ; Gastrointestinal Diseases ; epidemiology ; etiology ; therapy ; Humans ; Incidence ; Infant ; Male ; Prognosis ; Retrospective Studies ; Sepsis ; complications

Abstract: Objective To understand the distribution and drug resistance of pathogenic bacteria of bloodstream infection in Fujian Province, and to provide reference for clinical rational drug use. Methods Bacteria identification and antimicrobial susceptibility test were carried out on the isolated strains of blood culture samples in 31 medical institutions in Fujian Province according to the unified plan. The data were statistically analyzed by WHONET 5.6 software according to the Clinical and Laboratory Standards Institute (CLSI) drug sensitivity executive standard in 2021. Results After removing the duplicate strains, 10 356 strains of bacteria were collected, including 3 668 strains of Gram-positive bacteria (35.4%) and 6 688 strains of Gram-negative bacteria (64.6%). The top 5 bacteria are Escherichia coli, Klebsiella pneumoniae, coagulase negative Staphylococcus, Staphylococcus aureus and Pseudomonas aeruginosa. In this study, the detection rate of methicillin-resistant Staphylococcus aureus (MRSA) was 24.5%, and the detection rate of methicillin-resistant coagulase-negative Staphylococcus aureus (MRCNS) was 76.8%. Vancomycin, teicoplanin and linezolid resistant staphylococci were not found. The detection rate of penicillin resistant Streptococcus pneumoniae was 3.2%. Vancomycin resistant Enterococcus faecalis and Enterococcus faecium were 0.8% and 1.1% respectively. The resistance rate of Escherichia coli to carbapenems was 0.8%, and the resistance rate to levofloxacin was 41.9%; the resistance rate of Klebsiella pneumoniae to carbapenems was 15.0%. The resistance rate of Acinetobacter baumannii to carbapenems was 45.1%; the detection rate of Pseudomonas aeruginosa was only 14.2%, and it maintained a high sensitivity to most drugs. Conclusions Most bloodstream infections in Fujian Province are caused by Escherichia coli, Klebsiella pneumoniae and Staphylococcus. The drug resistance of some strains is not optimistic, so we should continue to strengthen the clinical application management of antibiotics and use them correctly and reasonably. Keywords: Bloodstream infection; bacteria; antibiotics; drug resistance monitoring

Objective To select more rapid,sensitive and specific method in detection of respiratory syncytial virus(RSV)directly from clinical specimens.Methods RSV was detected by virus isolation in tissue culture,direct smears and detection by indirect immunofluorecence assay(IFA),rapid culture assay,sandwich enzyme linked immunosorbent assay(ELISA)as well as labbed streptavidin biotin method(LSAB)from 45 specimens(nasopharyngeal aspirates,NPAs) collected from infants and young children with acute lower respiratory tract infection.Results Of 45 NPAs,12 cases(26.7%) were positive by virus isolation,14 cases(31.1%) were positive for RSV by direct detection of RSV antigen by IFA,20 cases(44.4%) were positive with rapid culture assay,4 cases(8.9%)were positive by sandwich ELISA,4 cases(8.9%)were positive by LSAB.Conclusion Rapid culture assay and direct detection of RSV in NPAs direct smears by IFA are rapid,sensitive method in the diagnosis of RSV infections.

Objective To explore the long-term efficacy of botulinum toxin type A injections on facial beauty and its long-term safety.Methods A total of 33 beauty-seekers with botulinum toxin type A treatment for more than five years were reviewed as observation group,using digital muscle palpation meter (Myoton PRO) for the determination of the orbicularis oculi muscle and masseter muscle tension (F),the muscle characteristic parameters,such as muscle hardness (S) using a homemade facial questionnaire test for satisfactory rate of beauty from both beauty-seekers and physicians.At sametime,33 normal adults that never accepted botulinum toxin injection with matched age and gender were collected as control group.The same-sex indicators were dtermined and compared with using statistic analysis t test.Results The pairwised parameters of the same sex and site were comparied between the two groups;average F and S values in the observation group were lower than those of the control group,but no statistically significant difference were observed between the two groups (P＞0.05);in the observation group,average appearance age was 7.3 years younger than the control group,and the facial shape improved significantly.Conclusions Long-term and repeated application of botulinum toxin A is able to remove crow's feet and decrease the masseter and so the injection is safe with high satisfaction to beauty-seekers.

Objective: To examine the causal relationship between food intake and atherosclerosis using two-sample Mendelian randomization (MR) approach, so as to provide the reference for the prevention of atherosclerosis. Methods: Data of 16 types of food (grains, vegetables, fruits, meats, etc.) and 4 types of atherosclerosis (coronary atherosclerosis, cerebral atherosclerosis, peripheral atherosclerosis and other atherosclerosis) was collected through IEU OpenGWAS database, with food data comprising approximately 500 000 subjects and 9 851 867 SNPs and atherosclerosis data comprising approximately 200 000 subjects and 16 380 447 SNPs. The causal relationship was analyzed using inverse-variance weighted (IVW) method with food as the exposure variable and atherosclerosis as the outcome variable. Sensitivity analysis was performed using funnel plots and leave-one-out. Results: Dried fruit intake was associated with decreased risks of peripheral atherosclerosis (OR=0.195, 95%CI: 0.082-0.466) and other atherosclerosis (OR=0.208, 95%CI: 0.095-0.452), and cheese intake was associated with decreased risk of peripheral atherosclerosis (OR=0.575, 95%CI: 0.380-0.870). Coffee intake was associated with increased risk of coronary atherosclerosis (OR=1.645, 95%CI: 1.099-2.462), and alcohol intake was associated with increased risk of other atherosclerosis (OR=1.269, 95%CI: 1.032-1.561). There was no statistically significant association between 16 types of food and cerebral atherosclerosis. No horizontal pleiotropy was found, no single SNP had significant impact on the overall estimated value, and the funnel plots did not show significant bias. Conclusion Dried fruit and cheese intake are protective factors for atherosclerosis, while coffee and alcohol intake are risk factors for atherosclerosis.

OBJECTIVETo explore the effect of negative emotions on serum levels of adrenocorticotropic hormone (ACTH) and neuropeptide Y (NYP) in hepatitis B liver cirrhosis (HBLC) patients.

METHODSTotally 617 HBLC patients were assigned to the negative emotion group (415 cases) and the non-negative emotion group (202 cases) judged by negative emotions. Case numbers of various grading Child-Pugh were recorded in the two groups. Their liver functions were compared between the two groups. Serum levels of ACTH and NPY were detected using double antibody sandwich enzyme-linked immunosorbent assay (ELISA) in the two groups.

RESULTSThere was no statistical difference in Child-Pugh grading between the two groups (χ2 = 0.65, P = 0.72). Compared with the non-negative emotional group, serum ACTH levels decreased significantly in the negative emotion group with statistical difference (P < 0.05). There was no statistical difference in serum ACTH levels between the two groups (P > 0.05).

CONCLUSIONThe negative emotion of HBLC patients was not related to the serum ACTH level, but to relatively lower-concentration serum NPY levels.

Adrenocorticotropic Hormone ; blood ; Emotions ; Hepatitis B ; blood ; psychology ; Humans ; Liver Cirrhosis ; blood ; psychology ; Neuropeptide Y ; Serum

Objective To investigate the correlation between serum interleukin-8 (IL-8 )and immunoglobulin/complement 3A (IgA/C3)and immune imbalance in Henoch-Schonlein Purpura(HSP)in children,and provide evidence and guidance for clinical therapy of HSP.Methods Serum IL-8 was measured by Enzyme-linked immunosorbent assay(ELISA),and IgA and C3 were de-tected by automatic biochemistry analyzer,and calculate the ratio of IgA/C3.Results Serum IL-8 levels were (389±5 1.68)ng/L, significantly higher than that in healthy children (P < 0.05 ).Serum IgA levels were(306.2 ± 32.21 )mg/L,significantly higher (P <0.05).Serum C3 levels were (1 14.5 ±20.7)mg/L,of no statistical difference.IgA/C3 were (3.041 ±0.508 5),significantly higher(P <0.05).There was a positive correlation between IL-8 and IgA/C3 (r =0.534,P <0.05 ).Conclusion The children of HSP has cytokine and immunoglobulin disturbance,and presents a hyperreactivity in both humoral immunity and cellular immunity. Positive correlation between IL-8 and IgA/C3 was observed.

Objective The aim of this study was to investigate the effect of ultrasonically activated hematoporphyrin on ultrastructure of ehrlich ascites tumor(EAT) cells and to evaluate the potential mechanism of action inducing this cytotoxicity. Methods EAT cells in vitro were exposed to ultrasound at 2^0?MHz and 1^5?W/cm+2 for 3?min in the presence or absence of hematoporphyrin.The changes of ultrastructure of sample preparation for different time were observed by transmission electron microscope. Results The degree of destruction of treated EAT cells was enhanced with the increasing of time for the sample preparation.The sites destroyed mainly involved cell membrane,mitochondrion,endoplasmic reticulum and cell nuclei.Furthermore,morphoiogical characters of ultrasound-activated hematoporphyrin induced apoptosis were observed on EAT cells.Conclusion The killing of tumor cells was ascribed mainly to the damage of ultrastructure induced by ultrasound in combined with hematoporphyrin,apoptosis was also induced during ultrasound and hematoporphyrin killing process.;

Objective To develop a standard and procedural protocol for the perioperative management of thymectomy for myasthenia gravis(MG) patients and thus to reduce the incidence of MG crisis.Methods From June 1996 to March 2016,466 MG cases received thymectomy we continuously explored key technologies of surgical treatment for MG 466 patients,there were 209 male cases and 259 female cases,with age ranging from 5 to 77 years and chief complaint history ranging from 12 days to 18 years.Symptoms included drooping eyelids,double vision,weakness,shortness of breath,coughing,dysarthria,and difficulties in swallowing and chewing.According to the modified Osserman classification,there were 248 type Ⅰ MG cases,58 type Ⅱa MG cases,66 type Ⅱb MG cases,71 type Ⅲ MG cases,and 23 type Ⅳ MG cases respectively.116 cases received thymecotomy via full sternotomy,204 cases via J type semi-sternotomy,and 146 case via thoracoscopy (including 13 cases via sub-xiphoid approach).Results Perioperatively one case died of sudden death,another patient died of respiratory failure after the second operation for metastatic thymoma,with a mortality rate of 0.42％ (2/466);13 cases had M G crisis (13/466);Six cases underwent tracheotomy (6/466);2 cases had plasmapheresis hypotonic syndrome (accounting for 3.4％ in plasmapheresis cases) and were reoperated to stop bleeding.Postoperatively pathological diagnosis was made,including three thymic atrophy cases,272 thymic hyperplasia cases,178 thymoma cases,and 13 thymic cyst cases.Conclusion A standard and procedural protocol for the perioperative management of thymectomy for MG patients can be developed,which can reduce the morbidity of MG crisis and the incidence of tracheotomy.

Abstract: Objective　To investigate the molecular characteristics and drug resistance of non-O1/non-O139 Vibrio cholerae in Zhongshan City, and to provide laboratory basis for cholera prevention and control. Methods　The strains of non-O1/non-O139 Vibrio cholerae isolated from sporadic patients and aquatic products from 2015 to 2021 in Zhongshan city were collected. The identification and cluster analysis of the strains were analyzed by matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS), the ctxA virulence gene of strains were detected by real-time fluorescence quantitative PCR, the cluster analysis of the strains was analyzed by pulsed-field gel electrophoresis (PFGE), and the drug resistance of the strains were analyzed by microbroth dilution method. Results　From 2015 to 2021, 33 strains of non-O1/non-O139 Vibrio cholerae were isolated from Zhongshan City, including 28 strains from sporadic patients and 5 strains from aquatic products. Through MALDI-TOF-MS identification, 33 strains of non-O1/non-O139 Vibrio cholera can be identified to the level of species, and the identification results were all Vibrio cholerae. Among 33 non-O1/non-O139 Vibrio cholerae strains, 1 strain carried the ctxA virulence gene. The drug-resistant strains accounted for 69.7% (23/33), and the multidrug resistant strains accounted for 18.2% (6/33). A total of 7 kinds of drug resistance spectrum were produced, including 3 kinds of multidrug resistant spectrum, and showed drug resistance to 8 antibiotics, among which the resistance rates to streptomycin, cefazolin and compound sulfamethoxazole were above 30%. The 33 strains of non-O1/non-O139 Vibrio cholerae were divided into 32 PFGE fingerprints with a similarity ranging from 61.7% to 100%. MALDI-TOF-MS cluster analysis divided 33 non-O1/non-O139 Vibrio cholerae strains into two clusters. Conclusions The results of molecular typing of non-O1/non-O139 Vibrio cholerae in Zhongshan City presented diversity, and no significant correlation was found between PFGE and MALDI-TOF-MS cluster analysis. The strains demonstrated various degrees of resistance to certain antibiotics, and there were multidrug-resistant and toxigenic strains. Therefore, it is necessary to alert to the harmfulness of non-O1/non-O139 Vibrio cholerae and enhance monitoring.