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 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.

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.

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.

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

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

The heel vessel belongs to the eight extra meridians in human meridian system, which is closely related to the human motion function. Balance function plays an essential role in successful completion of activities in daily life, so the physiological function and pathology of heel vessel as well as human balance function are analyzed, and from the aspect of running course of heel vessel and syndrome, the correlation between heel vessel and human balance function is explored, and the application status of acupoints related to heel vessel for balance dysfunction is introduced. It is believed that heel vessel is closely related to human balance function, especially the motion regulation mechanisms of balance function, and it is hoped that new ideas and methods can be provided for acupuncture treatment for the balance function disorders.
Acupuncture Points ; Acupuncture Therapy ; Humans ; Meridians ; Postural Balance

Objective:The aim of this study was to observe the role of NO in the action of tetramethylpyrazine (TMP) on arterioles vasomotion induced by noradrenaline (NA), in order to make further understand of vasodilation mechanism of TMP.Methods: Albino rabbits weighting 2.0 ～ 2.5 kg were anesthetized. They were ventilated with room air via tracheotomy tube. The arterial pressure was monitored with a pressure transducer attached to a polyethylene canula in the right common carotid artery by four channel polygraph, the intestinal loop was mounted on the stage of an inverted microscope and bathed in balanced Kreb Ringer solution maintained at 37.5 ?C . The inside diameter of arterioles were measured manully on a TV monitor using a TV camera mounted on the microscope. Observe the changes of BP、 microcirculation and filtration of true capillary after injection of TMP 8mg/kg、 N G monomethyl L arginine( L NMMA) 10mg via a cannula in the left carotid artery after topical application of NA(0.8?g) conducted in the measured field. Results:TMP can inhibit spontaneous vasomotion in vasodilation; L NMMA can inhibit it in vasoconstriction stage. L NMMA have no effect on the action of TMP. Conclusions: Endogenous NO has no role in TMP's vasodilation.