Clinical characteristics and logistic regression analysis of macrolide-resistant Mycoplasma pneumoniae pneumonia in children.

Purpose: To investigate macrolide-resistant Mycobacterium pneumoniae (MRMP) pneumonia in children and construct a logistic regression model for mutations in the Mycoplasma pneumoniae drug-resistant gene.

Methods: Clinical data of 281 children were analyzed. Sequencing confirmed a mutation at the A2063G locus of the 23 S rRNA gene in 227 children (A2063G group); 54 children showed no mutations (non-MRMP [NMRMP] group).

Diurnal trends of indoor and outdoor fluorescent biological aerosol particles in a tropical urban area.

We evaluated diurnal trends of size-resolved indoor and outdoor fluorescent biological airborne particles (FBAPs) and their contributions to particulate matter (PM) within 0.5-20 μm. After a ten-week continuous sampling via two identical wideband integrated bioaerosol sensors, we found that both indoor and outdoor diurnal trends of PM were driven by its bioaerosol component.

Size-resolved dynamics of indoor and outdoor fluorescent biological aerosol particles in a bedroom: A one-month case study in Singapore.

This study evaluated the interrelations between indoor and outdoor bioaerosols in a bedroom under a living condition. Two wideband integrated bioaerosol sensors were utilized to measure indoor and outdoor particulate matter (PM) and fluorescent biological airborne particles (FBAPs), which were within a size range of 0.5-20 μm.

A blind area of family planning services in China: unintended pregnancy among unmarried graduate students.

Background: Status of premarital sex, unintended pregnancy and associated factors among Chinese graduate students remain unclear. And unmarried graduate students' needs of family planning services seem to be ignored. In the present study, we ascertained the prevalence rate of premarital sex and unintended pregnancy, as well as estimated the possible factors associated with unintended pregnancy among unmarried Chinese graduate students, and evaluated their reproductive health needs.

Urgent need for contraceptive education and services in Chinese unmarried undergraduates: a multi-campus survey.

In order to ascertain prevalence rate of premarital sexual intercourse, unintended pregnancy and abortion, and evaluate associated factors of unintended pregnancy among undergraduates from all over China, the representative sample of unmarried undergraduates was obtained by using a multi-stage, stratified, probability cluster design, and data were collected by using a survey questionnaire. 62 326 available responders were gained. 11.

[Apoptosis of sperm induced by murine cytomegalovirus infection and its mechanism regulated by sperm mitochondria: experiment with mice].

Objective: To study the effects of murine cytomegalovirus (MCMV) infection on mature sperm apoptosis in mice, and to explore the mechanism of MCMV-induced apoptosis regulated by mitochondria.

Methods: MCMV was inoculated into the testes of 15 BALB/c mice to establish acute MCMV infection models and 15 mice were used as controls. 1, 2, 4, 6, and 9 days after the infection 3 mice from each group were killed.

Candida albicans and filtrates interfere with human spermatozoal motility and alter the ultrastructure of spermatozoa: an in vitro study.

The in vitro effects of Candida albicans and its filtrates on the motility and ultrastructure of human spermatozoa from healthy donors were studied. A significant reduction in sperm progressive motility and signs of membrane alteration, directly related to contact time were observed. Distinct adhesion of spermatozoa to C.

[Resistant effect of water decoction of root of Crataegus cuneata on male infertility induced by GTW in rats].

Objective: To observe the effects of water decoction of the root of Crataegus cuneata on infertility induced by multi-glucoside of Tripterygium wilfordii (GTW) in rats.

Method: Male adult rats were randomly divided into five groups, which were treated via gastric gavage of distilled water (1 mL x kg(-1)) , solution of GTW (10 mg x kg(-1)) and three doses of water decoction of root of C. cuneata (1.

Effects of murine cytomegalovirus infection on sperm viability in mice.

In order to explore the effects of testicular infection of murine cytomegalovirus (MCMV) on mature sperm viability at different periods following MCMV inoculation in mice, 91 BALB/c mice without MCMV infection were randomly divided into two groups: an experimental group (n = 56) and a control group (n = 35). The mice in the experimental group were treated by inoculating MCMV intratesticularly, while those in the controlled group were directly inoculated with DMEM without MCMV. The mice in both groups were sacrificed separately on the day 1, 1.

A study on the traditional Chinese medicine Jinyebaidu for prevention and treatment of intrauterine infection with guinea pigs cytomegalovirus.

The purpose is to study the prophylactic and therapeutic effect of the traditional Chinese Medicine (TCM)-Jinyebaidu (JYBD) to guinea pig cytomegalovirus (GPCMV) intrauterine infection. The virus-free female and male guinea pigs were screened with nest-polymerase chain reaction (N-PCR). After inbred, pregnant guinea pigs were selected and divided into 3 groups randomly: 5 guniea pigs of the blank control group were not given either GPCMV or JYBD.

[Effects of testis murine cytomegalovirus infection on sperm acrosome reaction and spermatic function of membrane in mice].

Objective: To explore the effects of testis murine cytomegalovirus (MCMV) infection on mature sperm acrosome reaction and spermatic function of membrane in mice.

Methods: BALB/c mice without MCMV infection were randomly devided into two groups: an experimental group (48 mice) and a control group (30 mice). The mice in the control group were treated by inoculation DMEM without MCMV into testis, while those in the experimental one were directly inoculated with MCMV into testis.

[Experimental study on effects of testis murine cytomegalovirus infection on sperm viability in mice].

Objective: To explore the effects of testis murine cytomegalovirus (MCMV) infection on mature sperm viability in mice.

Methods: BALB/c mice without MCMV infection, screened by ELISA, were randomly divided into two groups: an experimental group (n = 64) and a control group (n = 40). The former were directly inoculated with MCMV into the testis, while the latter treated by inoculation of DMEM without MCMV.

[The experimental study of guinea pig cytomegalovirus infection in the kidney of the pup of guinea pig].

Objective: To study the relationship of guinea pig cytomegalovirus (GPCMV) infection with the outcome of pregnancy by the kidney of guinea pig (GP).

Methods: Twenty first-trimester gestation GPs were randomly selected, intraperitoneally inoculated with GPCMV. Then female GPs and the pups were killed within 24 h after delivery.