Sperm DNA fragmentation index (DFI) refers to the percentage of DNA strand breaks in the total sperm. Many studies suggest that elevated DFI can lead to male infertility and early spontaneous abortion. High-DFI patients are more likely to fail in assisted reproduction and preliminary treatment or prevention methods have been developed for this population. This review focuses on the impact of DFI on clinical pregnancy outcomes and progress in the studies of its treatment.
Abortion, Spontaneous ; Chromatin ; DNA Fragmentation ; Female ; Humans ; Infertility, Male ; Male ; Pregnancy ; Pregnancy Outcome ; Sperm Injections, Intracytoplasmic ; Spermatozoa

Gas Chromatography-Mass Spectrometry ; methods ; Humans ; Trichloroacetic Acid ; urine

Objective To understand the status of health knowledge and behaviors on clonorchiasis sinensis of urban resi-dents in Yanqing District of Beijing City,China,so as to provide the targeted suggestions for further health education. Meth-ods The communities/streets were selected as the investigation sites by using the stratified randomly sampling method. A total of 283 residents were randomly selected and investigated with the structural questionnaire designed by Beijing Center for Dis-ease Control and Prevention. The fecal samples were collected and the eggs of Clonorchis sinensis were detected with Kato-Katz technique. Results All of the questionnaires were valid. The awareness rate about clonorchiasis was 25.09％. The rates of know-ing clonorchiasis infection route,harm and prevention measures were 10.60％,9.89％and 10.60％respectively. Totally 7.07％of the residents had the habits of eating raw or undercooked fresh water fish,and 2.47％of the residents had the behavior of eat-ing sashimi. C. sinensis eggs were not found among the research objects. Conclusions The awareness rate about clonorchiasis is low among urban residents in Yanqing District. The focus of the future work is to extensively carry out the health education about clonorchiasis prevention and control and take relevant interventions.

OBJECTIVE:To determine camphor in compound menthol nose drop by RP-HPLC.METHODS:Waters No-va-pak C 18 was taken as the chromatographic column,the mobile phase was composed of chloroform-methanol-water(14∶52∶30)with a flow speed at1.0ml/min and detection wavelength at289nm,the column temperature was35℃.RESULTS:The linear range for camphor was0.8～5.6?g/ml(r=0.9998)and the average recovery rate was99.4%(RSD=0.7%).CONCLUSION:The method is specific,convenient and accurate,which can be used for the quality control of the preparation.

In order to study the structure-function relationship in the protein which is incorporated with p-nitro-L-phenylalanine,the method of MD(Molecular Dynamics) simulation was established and successfully used in the analysis of protein which contains p-nitro-L-phenylalanine.The force field of CHARMM can only stimulate protein with natural amino acid in NAMD.Compared with phenylalanine,p-nitro-L-phenylalanine just has one more group of nitro.If the parameter of group of nitro was defined,the protein containing p-nitro-L-phenylalanine can be simulated.CGenFF-paramchem was used to calculate the energy and topological structure of p-nitro-L-phenylalanine' s new bonds (r),angles (θ),dihendrals (φ) and improper angle (ψ).And then the new defined parameter and topology information was input into the related parameter files and topology files in CHARMM.On the basis of correct parameter,NAMD can successfully simulate the modified BAFF(B lymphocyte stimulator) which contains p-nitro-L-phenylalanine.The changes in structure indicated that there might be new B cell epitopes.The temperature distribution of each frame in the process of dynamics stimulation was in accord with normal distribution,which proved the defined force field parameters was feasible.The RMSD of whole protein solution systemis 2.5.Calculate each resides' RMSF in BAFF,the RMSF of p-nitro-L-phenylalanine's residue is 3.7,which is obviously higher than that of the other residues in β-pleated sheet,and close to the loop rings,indicate that there might be variation in the area of p-nitro-L-phenylalanine residue and might produce new comformational epitopes.The results of MD stimulation will guide the immunogenicity experiments of p-nitro-L-phenylalanine modified proteins.

ObjectiveTo investigate the quality of life (QOL) of old patients with cardiovascular diseases in community. Methods100 old patients with cardiovascular diseases in Xiluoyuan, Beijing were investigated with WHOQOL-BREF. ResultsThe QOL-BREF scores in the dimensions of physical health, psychology, social relationships, and environment were (53.21±11.50), (53.27±15.99), (54.29±14.41) and (57.65±15.30) respectively. There was not significant difference between self-rating scores and scores in four dimensions of QOL-BREF (P>0.05). There was not significant difference of QOL-BREF scores in four dimensions between male and female, nor the ones whether complicated with diabetes (P>0.05). The incidence of satisfaction was 31% for QOL, 23% for health, and 62% for the healthy system as self-report. ConclusionThe QOL of the patients is related to diseases.

Objective To investigate mechanism of cyclooxygenase-2 ( COX-2) in bone loss in a postmenopausal osteoporosis (PMOP) rat mode with ovarietomy (OVX).Methods Forty female Sprague Dawley adult rats at age of 3 months were randomly divided into 4 groups,10 in each group,including shamoperated (sham) group,OVX group,OVX treated with nilesteriol (OVX + E) group and OVX treated with aspirin ( OVX + P) group.All rats in OVX,OVX + E and OVX + P groups underwent ovarietomy under abdominal anesthesia with 10％ chloral hydrate.Rats in sham group were only taken with fat tissue with same weight under bilateral ovary.After surgery,penicillin was administered to prevent infection.At day 7 after surgery,agents were given by intragastric administration for 12 weeks.Nilestriol at 1.0 mg/kg was used in OVX + E group once a week,aspirin at 45 mg · kg - 1 · d- 1 was used in OVX + P group once a day.Saline with same volume was used in rats in sham and OVX groups.All agents were administered one time per day.Dose of agents were adjusted by weight per week.At end of study,bone mineral density (BMD) of right femurs and lumbar vertebrae 3 -5 (L3-5) were measured.Morphology of bone was detected by hematoxylineosin,and expression of COX-2 was determined by immunohistochemistry staining.Results ( 1 ) BMD:BMD of right femur and L3-5 was (0.209 ±0.010) g/cm2 and (0.230 ±0.012) g/cm2 in sham group and (0.181 ±0.008) g/cm2 and (0.201 ± 0.016) g/cm2 in OVX group,which reached statistical difference (P＜0.01).BMD of right femur and L3-5 was (0.203 ±0.009) g/cm2 and (0.224 ±0.028) g/cm2 in OVX + E group and (0.200 ± 0.011 ) g/cm2 and (0.204 ± 0.003 ) g/cm2 in OVX + P group,which were all higher than those in OVX group (P ＜0.01,P ＜0.05).However,there was no statistical difference in BMD between OVX + E and OVX + P group ( P ＞ 0.05).(2) Morphology of bone:bone trabeculae became fewer and degenerated in OVX group.However,bone trabeculae were regular and dense in OVX + P group and OVX + E group,which were similar to those in sham group.(3) Expression of COX-2:cells with COX-2 positive and expression of COX-2 around bone trabeculae in OVX group were more than those in sham,OVX + E and OVX + P group.Conclusion COX-2 plays an important role in PMOP.Aspirin could prevent bone loss by decreasing COX-2 expression in OVX rats.

BACKGROUND: Chinese kidney-tonifying herb is commonly used in orthopedics department. However, individual effects of different ingredients remain poorly understood. OBJECTIVE: To observe influence of effective ingredients of Chinese kidney-tonifying drugs on bone healing and hemorheology of rats with bone injury. METHODS: Rat model of fracture of shaft of the femur was established, and treated by intragastric administration separately with extractive rhizoma drynariae total flavonoids, epimedium total flavonoids, dodder total flavonoids, naringin, quercetin and hesperidin. Blood and bone samples were harvested after 21 days to detect the extent of bone healing and hemorheology indexes. RESULTS AND CONCLUSION: The effective constituents of different Chinese kidney-tonifying drugs were beneficial to bone healing, and the effect of rhizoma drynariae total flavonoids and epimedium total flavonoids was better than the other drugs. Rhizoma drynariae total flavonoids and epimedium total flavonoids effectively inhibited blood viscosity under low shear, and reduced erythrocyte aggregation index and the aggregation and adhesion of platelet (P < 0.05), but it had no evident effects on erythrocyte deformation. This shows that the effective ingredient of the Chinese kidney-tonifying drugs can promote bone healing and exert certain effects on hemorheology. In particular, rhizoma drynariae total flavonoids exhibits the best effect.

Animals ; Apigenin ; pharmacology ; Female ; Follicle Stimulating Hormone ; blood ; Gonadotropin-Releasing Hormone ; blood ; Luteinizing Hormone ; blood ; Phytoestrogens ; pharmacology ; Rats

OBJECTIVETo compare the differences in the clinical efficacy on post-stroke upper limb spasmodio hemiplegia among the combined therapy of relaxing needling (Huici) technique combined with wheat-grain moxibustion, simple relaxing needling and conventional acupuncture.

METHODSNinety patients were-randomized into a group with the combined therapy of relaxing needling technique combined with wheat-grain moxibustion (a combined therapy group), a simple relaxing needling group and a conventional acupuncture group, 30 cases in each group. In the combined therapy group, the relaxing needling technique was used in combination with wheat-grain moxibustion. The relaxing needling technique was applied to Jianyu (LI 15), Quchi (LI 11), Shousanli (LI 10), etc. The wheat-grain moxibustion was applied to Qihai (CV 6), Guanyuan (CV 4), Mingmen (GV 4), etc. In thel simple relaxing needling group, the relaxing needling technique was used simply. In the conventional acupuncture group, the conventional lifting, thrusting and rotating technique with filiform needle was adopted at the same acupoints as the simple relaxing needling group. The treatment was given once every day; 6 treatments made one session. Totally 4 sessions were required, with 1 day at intervals. The modified Ashworth scale (MAS), Fugl-Meyer assessment (FMA) and Barthel index (BD were adopted to assess the upper limb muscle tension, motor functioni and daily life activity.

RESULTSAfter treatment, MAS score was all reduced as compared with that before treatment in each group, and FMA score and BI score were increased as compared with those before treatment (all P<0.01). MAS score in the combined therapy group was lower than that in either the simple relaxing needling group or the conventional acupuncture group (both P<0.01), and the score in the simple relaxing needling group was lower than that in the conventional acupuncture group (P<0.05). FMA score and BI score in the combined therapy group were higher than those in the simple relaxing needling group and the conventional acupuncture group (both P<0.01). FMA score in the simple relaxing needleing group was higher than that the Enventional acupuncture group (P<0.05). The total effective rate in the combined therapy group was 93.3% (28/30), higher; than 86.7% (26/30) in the simple relaxing needling group (P<0.01), and 83.8% (25/30) in the conventionaP acupuncture group (P<0.01).

CONCLUSIONThe combined therapy of relaxing needling technique and wheat-grain moxibustion achieves more satisfactory efficacy on post-stroke upper limb spasmodic hemiplegia compared with the simple relaxing needling and conventional acupuncture.

Acupuncture Points ; Acupuncture Therapy ; instrumentation ; methods ; Aged ; Combined Modality Therapy ; Female ; Hemiplegia ; etiology ; therapy ; Humans ; Male ; Middle Aged ; Moxibustion ; Stroke ; complications ; Treatment Outcome ; Triticum ; chemistry