OBJECTIVETo study the role of pathogenic microorganisms commonly associated with chronic eye disease, including Chlamydia psittaci, Chlamydia trachomatis, Chlamydia pneumoniae, herpes simplex virus (HSV) type 1 and type 2, and adenovirus type 8 and type 19, in the development of primary ocular adnexal mucosa-associated lymphoid tissue (MALT) lymphoma in Chinese patients.

METHODSSixty-eight archival cases of primary ocular adnexal lymphoproliferative lesions, including 38 cases of MALT lymphoma, 3 cases of non-MALT lymphoma and 27 cases of chronic inflammation, were enrolled into the study. DNA was extracted from the paraffin-embedded tissue samples. The presence of DNA of C. psittaci, C. trachomatis, C. pneumoniae, HSV type 1, HSV type 2, adenovirus type 8 and adenovirus type 19 were analyzed by multiplex touchdown enzyme time-release polymerase chain reaction (TETR-PCR).

RESULTSAll of the specimens yielded PCR products of over 100 base pairs and were thus suitable for TETR-PCR screening of infectious agents. The prevalence of DNA of C. psittaci, C. trachomatis and adenovirus type 19 were 0 in MALT lymphoma, non-MALT lymphoma and chronic inflammation. There were 2 cases positive for C. pneumoniae DNA, amongst the 38 cases of MALT lymphoma studied (5.3%, 2/38). HSV type 1, HSV type 2 and adenovirus type 8 DNA was found in each of the 3 patients with chronic inflammation.

CONCLUSIONThe study indicates that C. psittaci, C. trachomatis, C. pneumoniae, HSV type 1, HSV type 2, adenovirus type 8 and adenovirus type 19 probably play little role in the pathogenesis of ocular adnexal MALT lymphoma in Chinese patients.

Adenovirus Infections, Human ; virology ; Adenoviruses, Human ; genetics ; isolation & purification ; Chlamydia Infections ; microbiology ; Chlamydia trachomatis ; genetics ; isolation & purification ; Chlamydophila Infections ; microbiology ; Chlamydophila pneumoniae ; genetics ; isolation & purification ; Chlamydophila psittaci ; genetics ; isolation & purification ; DNA, Bacterial ; analysis ; DNA, Viral ; analysis ; Eye Infections ; microbiology ; virology ; Eye Neoplasms ; microbiology ; virology ; Herpes Simplex ; virology ; Herpesvirus 1, Human ; genetics ; isolation & purification ; Herpesvirus 2, Human ; genetics ; isolation & purification ; Humans ; Lymphoma, B-Cell, Marginal Zone ; microbiology ; virology ; Psittacosis ; microbiology

BACKGROUND: Chlamydia pneumoniae has recently been established as an important cause of acute respiratory tract infections such as pneumonia and bronchitis in humans. We introduced a 'touchdown' PCR method for detection of C. pneumoniae from sputum. METHODS: A total of 474 patients with respiratory infection were enrolled in the study. The sputum samples were tested for C. pneumoniae by the 'touchdown' PCR and cultured for Chlamydia. The sputum samples were pretreated with 5% NaOH for mucolysis. In 'touchdown' PCR, the first round PCR amplified DNA from both C. pneumoniae and Chlamydia psittaci, while the second round specifically targeted C. pneumoniae, allowing the two species to be differentiated. RESULTS: The 'touchdown' PCR could detect 10-2 inclusion forming unit (IFU) in the 1st round and 10-3 IFU in the second round PCR. None of the C. trachomatis serovars, C. psittaci and other organisms tested was amplified. 'Touchdown' PCR detected C. pneumoniae DNA in 24 (5%) of the 474 sputum samples. Nine patients with C. pneumoniae had community acquired pneumonia. Another nine patients had pulmonary tuberculosis of which three had coexisting pneumonia. Two patients had lung cancer, another two had chronic bronchitis, one had pharyngitis, and one person was a normal healthy individual. CONCLUSIONS: The sputum preparation with 5% NaOH and the 'touchdown' PCR method are effective in the detection of C. pneumoniae. C. pneumoniae is one of the most common causative agents for pulmonary infection.
Bronchitis ; Bronchitis, Chronic ; Chlamydia* ; Chlamydophila pneumoniae* ; Chlamydophila psittaci ; DNA ; Humans ; Lung Neoplasms ; Pharyngitis ; Pneumonia ; Polymerase Chain Reaction* ; Respiratory Tract Infections ; Sputum ; Tuberculosis, Pulmonary

No abstract available.
Atherosclerosis* ; Chlamydia* ; Chlamydophila pneumoniae*

BACKGROUND: There is growing evidence linking infection with Chlamydophila pneumoniae with vascular diseases, such as atherosclerosis and myocardial infarction. However, the data remain inconclusive and the clinical importance of C. pneumoniae as vasculopathic is unclear. So, we intend to detect C. pneumoniae in acute myocardial infarction patients by microimmunofluorescence (mIF) and polymerase chain reaction (PCR). METHODS: Blood and peripheral mononuclear cells (PMNCs) of 24 myocardial infarction patients and 100 normal controls were collected. Serum were used in mIF and PMNCs in PCR. PMNC sample were tested for C. pneumoniae by 'touchdown 'nested PCR. The first round PCR amplified DNA from both C. pneumoniae and Chlamydophila psittaci, while the second round specially targeted C. pneumoniae allowing the two species to be differentiated. RESULTS: Seropositivity of IgG and IgM anti-Chlamydophila pneumoniae antibody titers were 95.8% and 25% in myocardial infarction patients and 61% and 16% in control group, respectively. Positive rates of PCR of PMNCs were 8.3% in the patients and 15% in control group. CONCLUSION: The results of mIF show that mIF positive rate in myocardial infarction was much higher than control group. So an association between C. pneumoniae and myocardial infarction can be concluded. But the opposite results of PCR of PMNCs needed further studies.
Atherosclerosis ; Chlamydial Pneumonia* ; Chlamydophila pneumoniae* ; Chlamydophila psittaci ; Chlamydophila* ; DNA ; Humans ; Immunoglobulin G ; Immunoglobulin M ; Myocardial Infarction* ; Pneumonia ; Polymerase Chain Reaction ; Vascular Diseases

OBJECTIVE: A number of studies have reported association between Toxoplasma gondii (T. gondii) and Chlamydia infection and the risk of schizophrenia. The aim of the present study was to compare the prevalence of T. gondii and Chlamydia infection between the schizophrenia and normal control subjects and to compare the clinical features between seropositive and seronegative schizophrenia patients. METHODS: The rate of serum reactivity to T. gondii, Chlamydia trachomatis (C. trachomatis), Chlamydia pneumonia in 96 schizophrenia and 50 control subjects was investigated using enzyme-linked immunosorbent assay and indirect fluorescent antibody technique. The clinical symptoms of the schizophrenia patients were scored with Positive and Negative Syndrome Scale and a comparative analysis was carried out. RESULTS: A significant positive association between immunoglobulin G (IgG) antibodies to T. gondii and C. trachomatis in schizophrenia was found, and the odds ratio of schizophrenia associated with IgG antibody was found to be 3.22 and 2.86, respectively. The Toxoplasma-seropositive schizophrenia patient had higher score on the negative subscale N1 and N7 and general psychopathology subscale G13, while C. trachomatis-seropositive schizophrenia patient had higher score on the general psychopathology subscale G10. CONCLUSION: The results from the present study suggest significant association between T. gondii, C. trachomatis infection and schizophrenia. In future, further studies are needed to elucidate the correlation between the two types of infection and schizophrenia.
Antibodies ; Chlamydia ; Chlamydia Infections ; Chlamydia trachomatis ; Chlamydophila pneumoniae ; Enzyme-Linked Immunosorbent Assay ; Fluorescent Antibody Technique, Indirect ; Humans ; Immunoglobulin G ; Odds Ratio ; Pneumonia ; Prevalence ; Psychopathology ; Schizophrenia ; Toxoplasma

The prevalence of Chlamydial infection in pregnant women was 8,1%. Pregnant women under 25 years old were at high risk for Chlamydial infection. Chlamydial infection was not associated with gestational age. There is no difference about the prevalence of Chlamydial infection between the rural and urban women. Oral amoxicillin had a efficacy of 82,2% after 1 stage and 86,4% after 2 stages of treatment. The result suggested that amoxicillin is a safe, well tolerated and effective for treatment of Chlamydia in pregnant women.
Chlamydiales ; Pregnant Women

A randomized study involved 1,000 women who were 18-44 years of old at Hµ Néi Obstetric-Gynecological Hospital, Hai Bµ Tr­ng Maternity Clinic, and Obstetric Department of Thanh Nhµn Hospital. The cross-sectional survey showed that mean age of participants was 34.1 years. Mean age of leukorrhoea group was 33.4 years and of non-leukorrhoea group was 34.7 years. Mean age at time of marriage was 23.5. Most of participants were housewifery and official, and have finished only primary and secondary school. Severe leukorrhoea was seen in 50.4% of the participants. Most of them (98.4%) have sex relationship only with their husbands. 28.2% have not used any contraceptive method. 0.2% of the participants have external genital ulcer. 31.7% have cervical erosion. 16.5% have pelvicitis.
Chlamydiales ; Pregnant Women

Study on decontamination of microorganisms on hepamarin, an herbal drug by gamma Co-60 radiation has been carried out with doses of 5 and 10kGy. the results showed that the contamination of microorganism on hepamarin drug decreased sharply from 108 (non-irradiated) to 105 and 4.102 microorganisms/g for sample irradiated at dose of 5 and 10 kGy, respectively. Post irradiation effect of decotamination of microorganisms on hepamarin was maintained during storage. The obtained data indicated that gamma Co-60 radiation is suitable for decontamination of microorganisms on hepamarin.
Chlamydiales ; Radiation ; Infection ; Decontamination

24 cases of Chlamydia pneumoniae infections in children aged 31,9± 15,4 months were admitted to Pediatric Hospital No 1 from August 15 to October 15/2004. The diagnosis was confirmed by serology and quantifying Chlamydia antibody. Common clinical symptoms were pneumoniae 54,2%, bronchitis 41,7%, tracheobronchitis 4,2%. But the most common were cough, then fever, wheezing, rhinitis, tachypnea and substernal contraction. Result had suggested more attention in the diagnosis and treatment as well as the communicability of the condition
Chlamydophila pneumoniae ; child ; epidemiology

No abstract available.
Antibodies* ; Blood Donors* ; Chemistry* ; Chlamydia* ; Chlamydophila pneumoniae* ; Humans ; Mycoplasma pneumoniae* ; Mycoplasma* ; Pneumonia, Mycoplasma* ; Prevalence*