Wheezing is one of the most common clinical manifestations of childhood respiratory diseases, mainly associated with virus infection. Recent years, bacteria colonization and its infection are reported to involve in childhood wheezing, especially in infantile wheezing. However, the bacteria flora in the airway is only a phenomenon or a reason to induce some childhood wheezing, and its roles, as well as the mechanism in the development of wheezing remain unknown. This article summarizes the research progress in the relationship between childhood wheezing and bacteria and in the possible mechanisms of childhood wheezing caused by bacteria.
Anti-Bacterial Agents ; adverse effects ; Bacterial Infections ; complications ; Humans ; Respiratory Sounds ; etiology ; Respiratory Tract Infections ; complications

OBJECTIVETo investigate the epidemiological characteristics and drug resistance profile of the infection in patients with hematological malignancies.

METHODSAll the microbe strains isolated from the department of hematology in Ruijin hospital between 1998 and 2002 were collected for the assessment of antimicrobial susceptibility and the results were analysed by WHONET5 software.

RESULTSOut of the 536 strains isolated in the department of hematology, 230 (42.9%) were Gram positive and 301 (56.2%) Gram negative organisms. The first 6 strains of Gram (-) microbes in frequent order were Pseudomonas aeruginosa, Klebsiella pneumoniae, Enterobacter cloacae, Escherichia coli, Acinetobacter Baumannii and Stenotrophomonas (xantho) maltophi. The extended spectrum beta-lactamase (ESBLs) producing rates of Escherichia coli and Klebsiella pneumoniae were 27.3% and 33.3%, respectively. Methylcillin resistant coagulase negative staphylococcus (MRCNS) was the most prevalent Gram (+) bacteria in the complicated infection patients with hematological malignancies, which accounted for 88.5%. Carbapenems were most sensitive for all of the gram negative bacteria, with a drug resistance rate of 11.4 (5.0% approximately 15.8%) of imipenem. For ESBLs strains, carbapenems and cefapime were the best choice, with the resistance rate of 46.4% approximately 94.4% and 50.0% approximately 75.9%, respectively. The drug resistance rate of Acinetobacter Baumannii was 25.0% approximately 41.3% for the third generation cephalosporin, 22.7% for the fourth generation cephalosporin and 12.7% for imipenem. Pseudomonas aeruginosa was resistant to carbapenems, with a resistance rate of 12.7% of imipenem; however, it was more sensitive to the third generation cephalosporin.

CONCLUSIONAntibiotics should be rationally administrated with more considerations to the characteristics of epidemiology and drug resistance profile of the microbes in the given department of hematology.

Accumulating evidence suggests that intestinal bacteria play an important role in the pathogenesis of colorectal cancer (CRC). Due to the complexity of the intestinal microbiome, identification of the specific causative microbial agents in CRC remains challenging, and the search for the causative microbial agents is intense. However, whether bacteria or their products can induce inflammation that results in tumorigenesis or directly causes CRC in humans is still not clear. This review will mainly focus on the progress of bacterial infection and CRC, and introduce the microbial contribution to the hallmarks of cancer. This article uses Salmonella and its chronic infection as an example to investigate a single pathogen and its role in the development of CRC, based on laboratory and epidemiological evidence. The bacterial infection leads to an altered intestinal microbiome. The review also discusses the dysfunction of the microbiome and the mechanism of host-microbial interactions, for example, bacterial virulence factors, key signaling pathways in the host, and microbial post-translational modifications in the tumorigenesis. Colonic carcinogenesis involves a progressive accumulation of mutations in a genetically susceptible host leading to cellular autonomy. Moving forward, more human data are needed to confirm the direct roles of bacterial infection in CRC development. Insights into the inhibiting infection will help to prevent cancer and develop strategies to restore the balance between host and microorganisms.
Bacterial Infections/complications* ; Carcinogenesis ; Colorectal Neoplasms/microbiology* ; Gastrointestinal Microbiome ; Humans

Abscess ; complications ; Bacterial Infections ; Humans ; Infant ; Infant, Newborn ; Male ; Paralysis ; complications ; Proctitis ; complications

Female ; Humans ; Infant ; Meningitis, Bacterial ; complications ; Salmonella Infections ; complications ; Salmonella typhi ; isolation & purification ; Sepsis ; complications

Cardiobacterium hominis, a fastidious gram-negative bacillus rarely causing endocarditis, was isolated from blood culture of a 41-year-old man with subacute bacterial endocarditis. The patient had undergone an operation of valve replacement 4 years before. Growth of the organism was only detected in 1 of 6 blood cultures after 7 days incubation. The isolate showed typical characteristics of C. hominis, i.e., tear-drop like cells and a weak positive indole reaction. The isolate was susceptible to many antimicrobial agents, but penicillin G and streptomycin therapy failed to cure the disease.
Adult ; Bacterial Infections/complications* ; Case Report ; Endocarditis, Subacute Bacterial/etiology* ; Gram-Negative Bacteria ; Human ; Male

Bacterial Infections ; complications ; Diagnosis, Differential ; Factitious Disorders ; complications ; Fever of Unknown Origin ; diagnosis ; etiology ; psychology ; Humans ; Vasculitis ; complications ; Virus Diseases ; complications

The peripancreatic infection is a severe complication during severe acute pancreatitis. Early diagnosis, effective prevention and timely treatment are directly associated to prognosis. In recent years, with the promotion and application of the concept of damage control and the rapid development of imaging intervention techniques, the treatment for peripancreatic infection has become "multi-step, step-up" minimally invasive surgical strategy from early laparotomy. The transformation of this concept and method has significantly improved the efficacy of peripancreatic infection in clinical practice. However, there are still many problems to be solved, such as prophylactic antibiotics, the choice of minimally invasive surgical techniques, and the management of early ascites. In addition, due to the variability and complexity of the course of severe acute pancreatitis, there is no uniform standard for clinical treatment and management of peripancreatic infection. Only through multidisciplinary collaboration, including surgery, imaging, nutrition and intensive care, can we truly achieve appropriate risk assessment, accurate clinical diagnosis and effective individualized treatment for these patients.
Acute Disease ; Bacterial Infections ; complications ; therapy ; Humans ; Laparotomy ; Minimally Invasive Surgical Procedures ; Pancreatitis ; complications

Rheumatoid arthritis of the knee is a common disease, but suppurative arthritis caused by Gemella morbillorum in the same joint is rare. We report a case of suppurative arthritis caused by Gemella morbillorum in a patient with rheumatoid arthritis. Because the infection symptoms was not typical, the diagnosis was delayed, and the delayed diagnosis and therapy led to a poor outcome of the patient.
Arthritis, Infectious ; complications ; Arthritis, Rheumatoid ; complications ; Female ; Gemella ; isolation & purification ; Gram-Positive Bacterial Infections ; complications ; Humans ; Knee Joint ; Middle Aged

Otitis media with effusion (OME), a kind of inflammatory disease of the middle ear, is characterized by the retention of middle ear effusions and hearing loss. There are many factors involved in the development of OME including bacterial infection, formation of bacterial biofilms, eustachian tube dysfunction, adenoid hypertrophy, immune system disorders. Recently, some studies showed that gastroesophageal reflux has correlation with OME.
Adenoids ; pathology ; Bacterial Infections ; complications ; Biofilms ; Ear, Middle ; pathology ; Gastroesophageal Reflux ; complications ; Hearing Loss ; complications ; Humans ; Hypertrophy ; complications ; Otitis Media with Effusion ; complications