OBJECTIVE：To analyse the distributing proportion of amoxicillin/clavulanate K(CA) in β-lactmas and the popularzing rate of CA in hospitals.The proportions of different drug dosage forms of CA were compared.METHODS：The sums of money of the antiinfectives,β-lactams(penicillins) and CA consumed in 13 cities of China in 1999 were analysed.RESULTS：The distributing proportion of CA in β-lactams(penicillins)accounted for 18.3％ ,the popularzing rate of CA in 13 cities was 74.4％ ,of which,oral dosage form amounted to 41.7％ and powdered form for injection 58.3％ .CONCLUSION：The results can provide reference for rational use of drugs in hospital.

OBJECTIVE To explore the pathogenesis of Ureaplasma urealyticum(Uu) and Mycoplasma hominis(MH) in urogenital tract infection and their susceptibility to antibiotics. METHODS Mycoplasma culture was carried out with the samples of 989 cases and then the susceptibility to 10 kinds of antibibtics was detected on positive samples. RESULTS From 989 cases 683 were infected with mycoplasma,the total positive rate was 69.1%,the positive rates of Uu,MH and their mixed infection were 55.1%,2.2% and 11.8%,respectively.The positive rate of female was higher than of male(P

Objective A case control study was designed to explore the risk factors of asthma for city children residing for more than half a year,in China.Methods All physician-diagnosed asthma children enrolled in the 3rd nationwide survey (2010) in 43 typical cities of China were selected as the cases,and non-asthmatic children in the same survey were selected as control subjects if they wcre matched with the cases in age and sex.A revised questionnaire on the basis of ISAAC Phase Three Environmental Questionnaire was designed to investigate the risks of asthma among city children aged 0-14 years in China.Chi square analysis and generalized linear mixed models were performed to check the exposure difference between the cases and the controls.Results 43 out of the 44 city centers were qualified according to the results after reviewing both data from the survey and management.As a result,26 950 subjects including 12 450 asthmatic children and 14 500 control subjects were enrolled in the case-control study.Except for the children of Han ethnicity,another 5 980 children (22.2％) of ethnic minorities and 3 1 children (0.1 ％) born in foreign countries were also included as the study subjects.After controlling for city centers as random effect,age,sex,race,problems related to allergy,family history of asthma or allergy,personal medication history of antibiotics,preterm delivery,under caesarean section,baby age for introducing protein-contained foods,environmental tobacco smoking,maternal occupation,indoor plantings,room decorations,dampness,and cooking fuel were proved to be risk factors of childhood asthma.Some differences were seen in the risks of asthma between new cases and current cases.The risk for exposure to indoor plants was different between new cases (OR=2.09,95％CI:1.30-3.36) and current cases (OR=0.80,95％ CI:0.74-0.86).Risks on asthma were varied by age.Allergy,inflection,odor,and preterm delivery (OR=1.72,95％CI:1.42-2.08) appeared to be the key risks for asthma in children younger than 3 years.Apart from the risks,specifically for children younger than 3 years,the risks on asthma for children of 3 to 5 years would also include factors as:sex (OR=1.18,95％CI:1.03-1.35),low birth weight (OR=1.69,95％ CI:1.17-2.44),and caesarean section (OR=1.26,95％ CI:1.10-2.45).Apart from risks specifically for children younger than 6 years,age (OR=0.97,95％CI:0.95-0.99),race (OR=1.61,95％CI:1.26-2.06),and emigration (OR=1.68,95％CI:1.39-2.03) were proved to be associated with asthma for children aged 6-14 years.Conclusion Asthma risks for city children in China would include genetic factors,allergy,infection,and other environmental factors but called for further research in the country.

Objective:To observe the expression of Galectin-7 in the serum and sputum of asthmatic children and to explore its significance in asthmatic children.Methods:The study prospectively case-control selected 183 children diagnosed with bronchial asthma at Department Ⅱ of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Beijing Children′s Hospital of Capital Medical University. The control group consisted of 41 children with other bronchial diseases and 43 healthy children. Children in the asthma group were divided into acute and non-acute exacerbation groups. Acute exacerbation group was divided as mild acute, moderate acute and severe acute groups; non-acute exacerbation group was divided as mild persistent, moderate persistent and severe persistent groups. Children without acute exacerbation asthma in the asthma group were divided into high and low Galectin-7 groups based on median serum Galectin-7 levels. Serum and sputum were collected, Galectin-7 levels were measured using enzyme-linked immunosorbent assay. The study compared and analyzed the differences in Galectin-7 levels between children with asthma and the control groups using Mann-Whitney U test or the Kruskal-Wallis or the Chi-square test for inter-group comparisons. Results:Among 183 children, 61 cases had acute asthma exacerbation, and 122 cases had persistent asthma without acute exacerbation. The asthma group comprised 110 males and 73 females. The control group consisted of 41 children with other bronchial diseases, including 24 cases of bronchiectasis and 17 cases of obliterans bronchitis. The control group comprised 26 males and 15 females. Forty-three healthy children who underwent physical examination, including 22 males and 21 females. The levels of Galectin-7 in serum were significantly higher in children with an acute asthma exacerbation than that of healthy children (0.1 (0, 0.7) vs. 0 (0, 0.2) μg/L, Z=2.09, P=0.001). Galectin-7 levels in sputum were higher in children with an acute asthma exacerbation than that in children with other bronchial diseases (1.2 (0.1,3.7) vs. 0.4 (0.1, 1.5) μg/L, Z=2.20, P<0.001). Serum Galectin-7 levels were significantly higher in children with persistent asthma compared to children with other bronchial diseases and healthy children (0.6 (0.3, 1.2) vs. 0.1 (0, 0.5) and 0 (0, 0.2) μg/L, Z=-6.12 ,-7.63, both P<0.001), and the levels were significantly and positively correlated with asthma severity ( r=0.77, P<0.001), disease duration ( r=0.34, P=0.001), and number of previous attacks ( r=0.51, P<0.001). There were 61 children in the high-Galectin-7 group and 61 children in the low-Galectin-7 group. Children with high Galectin-7 had more asthma triggers, a greater proportion with a positive family history, more previous asthma attacks, longer duration of asthma, and higher serum total IgE levels compared to those with low Galectin-7 ( χ2=9.30, 22.46, Z=5.06, 3.57, 2.31, all P<0.05). Conclusion:The expression of Galectin-7 is found to be elevated in the serum and sputum of asthmatic children and correlated with asthma conditions.

Objective:To analyze the characteristics of clinical distribution and change of aeroallergens in children with allergic diseases from 2015 to 2020.Methods:Children who visited Capital Institute of Pediatrics affiliated Children′s Hospital, suspected of allergic diseases and received serum aeroallergens specific immunoglobulin E (sIgE) test were retrospectively enrolled (1 to 14 years old). sIgE was detected by Phadia1000 system with radioallergosorbent test fluorescent enzyme-linked immunoassay. The characteristics and change of the aeroallergens among the 6 years was analyzed. Enumeration data were expressed by percentage and categorical variables were compared by the independent samples t-test and Pearson χ 2 test. Results:In total 4 608 tests (4 575 patients) of children were enrolled, the average age was (5.4±2.9) years old, with the median age of 5.0 years old. 3 176 were boys (68.9%), and 1 432 were girls (31.1%). 4 294 children were from the north of China (93.2%), 295 children were from the south of China (6.4%), and 19 children were from unknown regions (0.4%). In total the most common aeroallergen was mold mixture (1 956/4 457 tests, 43.9%) and Alternaria alternata (276/630 tests, 43.8%), followed by Artemisia (300/889 tests, 33.7%), Humulus scandens (12/38 tests, 31.6%) and grass mixture (909/2 874 tests, 31.6%). Among the 6 years, mold, grass pollen and tree pollen sensitization increased, and mold [38/130 (29.2%) vs 1 574/3 233 (48.7%)], grass pollen [11/77 (14.3%) vs 1 069/3 072 (34.8%)] increased significantly (χ 2 was 18.953 and 49.559, respectively, P=0.000). Positive rate of tree pollen increased [1/10 (10.0%) vs 516/2 122 (24.3%)], but did not have statistical significance (χ2=1.111, P=0.292). Dust mite [36/146 (24.7%) vs 321/1 408 (22.8%)] and hair of pets [7/33 (21.2%) vs 321/1 408 (17.1%)] sensitization didn′t change greatly (χ 2 =0.258, P =0.611; χ 2 =0.379, P =0.538). In 2015, the most common aeroallergens was mold (38/130, 29.2%), followed by dust mite (36/146, 24.7%), while in 2020, the most common aeroallergens was still mold (1 574/3 233, 48.7%), with grass pollen (1 069/3 072, 34.8%) and tree pollen (516/2 122, 24.3%) ranked after. Conclusion:Mold might be the most common aeroallergens in allergic children in Beijing area. With time went on, dust mite was gradually exceeded by grass pollen and tree pollen.

Objective:To analyze the characteristics of clinical distribution and change of aeroallergens in children with allergic diseases from 2015 to 2020.Methods:Children who visited Capital Institute of Pediatrics affiliated Children′s Hospital, suspected of allergic diseases and received serum aeroallergens specific immunoglobulin E (sIgE) test were retrospectively enrolled (1 to 14 years old). sIgE was detected by Phadia1000 system with radioallergosorbent test fluorescent enzyme-linked immunoassay. The characteristics and change of the aeroallergens among the 6 years was analyzed. Enumeration data were expressed by percentage and categorical variables were compared by the independent samples t-test and Pearson χ 2 test. Results:In total 4 608 tests (4 575 patients) of children were enrolled, the average age was (5.4±2.9) years old, with the median age of 5.0 years old. 3 176 were boys (68.9%), and 1 432 were girls (31.1%). 4 294 children were from the north of China (93.2%), 295 children were from the south of China (6.4%), and 19 children were from unknown regions (0.4%). In total the most common aeroallergen was mold mixture (1 956/4 457 tests, 43.9%) and Alternaria alternata (276/630 tests, 43.8%), followed by Artemisia (300/889 tests, 33.7%), Humulus scandens (12/38 tests, 31.6%) and grass mixture (909/2 874 tests, 31.6%). Among the 6 years, mold, grass pollen and tree pollen sensitization increased, and mold [38/130 (29.2%) vs 1 574/3 233 (48.7%)], grass pollen [11/77 (14.3%) vs 1 069/3 072 (34.8%)] increased significantly (χ 2 was 18.953 and 49.559, respectively, P=0.000). Positive rate of tree pollen increased [1/10 (10.0%) vs 516/2 122 (24.3%)], but did not have statistical significance (χ2=1.111, P=0.292). Dust mite [36/146 (24.7%) vs 321/1 408 (22.8%)] and hair of pets [7/33 (21.2%) vs 321/1 408 (17.1%)] sensitization didn′t change greatly (χ 2 =0.258, P =0.611; χ 2 =0.379, P =0.538). In 2015, the most common aeroallergens was mold (38/130, 29.2%), followed by dust mite (36/146, 24.7%), while in 2020, the most common aeroallergens was still mold (1 574/3 233, 48.7%), with grass pollen (1 069/3 072, 34.8%) and tree pollen (516/2 122, 24.3%) ranked after. Conclusion:Mold might be the most common aeroallergens in allergic children in Beijing area. With time went on, dust mite was gradually exceeded by grass pollen and tree pollen.

H 1-antihistamines are widely used in the treatment of various allergic diseases, but there are still many challenges in the safe and rational use of H 1-antihistamines in pediatrics, and there is a lack of guidance on the prescription review of H 1-antihistamines for children.In this paper, suggestions are put forward from the indications, dosage, route of administration, pathophysiological characteristics of children with individual difference and drug interactions, so as to provide reference for clinicians and pharmacists.