1.Anti-arrhythmic research situation and thinking of traditional Chinese medicine monomer.
China Journal of Chinese Materia Medica 2014;39(8):1544-1546
The basic physiological function of anti-arrhythmic drugs is affects myocardial cell membrane ion channels. Change the ion flow and affect cell electrophysiological properties, change the conduction velocity, eliminate retrace, inhibit autorhythmicity and trigger events, inhibit the occurrence of arrhythmia, but will trigger a new activities, new retrace, produce new arrhythmia. In recent years, with the improvement of the theoretical system of traditional Chinese medicine and the production of new research methods, Chinese medicine treatment of arrhythmia has a new development. This article summarized the recent decades of which Chinese medicine monomer anti-arrhythmic drugs that had been proved by the influence of monomer anti-arrhythmic drugs, lists the differents traditional Chinese medicinal materials which chemical composition and the effective of the anti-arrhythmic effects, shows the unique advantages of Chinese medicine in the aspect of anti-arrhythmic, and points out that the current Chinese medicine in anti-arrhythmic (monomer) existing problems and solutions.
Anti-Arrhythmia Agents
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therapeutic use
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Arrhythmias, Cardiac
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drug therapy
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Biomedical Research
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Drugs, Chinese Herbal
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therapeutic use
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Humans
2.Sperm DNA fragmentation index and the success rate of IVF/ICSI.
Di XI ; Yun CHEN ; Yu-tian DAI
National Journal of Andrology 2016;22(1):77-81
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
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Chromatin
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DNA Fragmentation
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Female
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Humans
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Infertility, Male
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Male
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Pregnancy
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Pregnancy Outcome
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Sperm Injections, Intracytoplasmic
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Spermatozoa
3.Comparison of magnetic attachment and ball-cap attachment for retained mandibular over-denture
Xi YAO ; Yunsheng LI ; Yongyu DAI
Chinese Journal of Tissue Engineering Research 2013;(51):8841-8848
BACKGROUND:Precision attachment has been widely used in complete denture because of its strong retention, good appearance, comfort and durability. Among them, magnetic attachment and bal-cap attachment are commonly applied for mandibular complete denture.
OBJECTIVE:To compare the clinical effects of magnetic attachment, bal-cap attachment and traditional clasp retainer used in the mandibular removable partial denture.
METHODS:A total of 45 patients with dentition defects were included in this study, they were treated with magnetic attachment, bal-cap attachment and traditional clasp retention of mandibular removable partial denture. Fifteen patients received one means. The satisfaction of patients and the periodontal health of abutments were observed after 3 years.
RESULTS AND CONCLUSION:Comparison of the patient satisfaction showed that, the aesthetics, retention conditions, masticatory function and comfort in magnetic attachment group were significantly better than traditional clasp retention group (P<0.05). The aesthetics and comfort in bal-cap attachment group were also better than traditional clasp retention group (P<0.05). There were significant differences on the retention conditions and comfort between magnetic attachment group and bal-cap attachment group (P<0.05). Gingival index was the highest in magnetic attachment group, then in bal-cap attachment group, and the lowest in traditional clasp retention group (P<0.05). The abutment tooth mobility degree was the lowest in magnetic attachment group, then in bal-cap attachment group, and the highest in traditional clasp retention group (P<0.05). The periodontal pocket depth in magnetic attachment group and bal-cap attachment group was lower than that in traditional clasp retention group (P<0.05). The alveolar bone height was the highest in magnetic attachment group, then in bal-cap attachment group, and the lowest in traditional clasp retention group (P<0.05). Experimental findings indicate that, precision attachment over-denture retention superior to traditional clasp removable partial denture in mandibular denture repairing. Magnetic attachment can provide better retention power and better protect the health of periodontal tissue compared with bal-cap attachment.
4. The effect of pre-freezing method on crystallinity of alanylglutamine
Chinese Pharmaceutical Journal 2016;51(11):910-914
OBJECTIVE: To research and regulate the crystal quality of alanylglutamine for improving their stability and pharmacodynamics as well as vacuum freeze-drying efficiency. METHODS: Scanning electron microscopy (SEM), X-ray powder diffractometer (XRD), differential scanning calorimetry (DSC), and thermogravimetric analyzer (TG) as well as lyophilized experiments were used to investigate the effect of pre-freeze method on crystallinity and uniformity of particle size of alanylglutamine. RESULTS: The result of SEM revealed that the lyophilized alanylglutamine with accelerated pre-freeze method is small-size particle with low crystallinity. Then the lyophilized alanylglutamine with multi-step annealing pre-freeze method become uniformly large particle with high crystallinity. The RESULTS of XRD and DSC indicted that, comparing with the lyophilized alanylglutamine with accelerated pre-freeze method, the lyophilized sample with multi-step annealing pre-freeze method is easier to form the crystal medicine with uniform particle size, less crystal defects, high crystallinity. And the former has lower stability than the later. CONCLUSION: The final lyophilized experiment give us a CONCLUSION that using the multi-step annealing pre-freeze method can improve the freeze-drying efficiency and crystal quality of alanylglutamine, which to achieve the ultimate goal of cost and energy saving.
6.Preliminary study on the best-exerted force chance in the female menstrual cycle.
Xi YANG ; Hongwei DAI ; Bin WANG ; Lan HUANG
West China Journal of Stomatology 2014;32(3):252-255
OBJECTIVETo investigate the exerted force in different phases of the female menstrual cycle, as well as the changes in estrogen (E2), osteocalcin (OCN), receptor activator of nuclear factor-kappa B ligand (RANKL), and osteoprotegerin (OPG) levels in the gingival crevicular fluid (GCF) during orthodontic tooth movement, to provide a theoretical basis for the selection of the best opportunity for efficient tooth movement.
METHODSTwelve women (aged 18 years to 28 years) with extracted first premolars had been selected. Six women in the group were randomly selected as the menstrual period group, whereas the remaining six were assigned to the ovulation period group. Right canines were retracted with 1.5 N NiTi close coil spring. GCF samples were collected prior to the force exertion experiments at 0 (T0), 15 (T1), 30 (T2), and 45 d (T3). The levels of E2, OCN, OPG and RANKL in GCF were measured by chemiluminescence and enzymelinked immunosorbent assay.
RESULTSThe E2 and OCN levels were significantly higher in the ovulation period group than in the menstrual period group (P < 0.05). No significant differences were found in RANKL and OPG levels between the two groups (P > 0.05). Finally, no significant difference was found in RANKL/OPG ratio between the two groups (P > 0.05).
CONCLUSIONExerted force on teeth during the menstrual period may promote rapid tooth movement.
Female ; Gingival Crevicular Fluid ; Humans ; Menstrual Cycle ; Osteoprotegerin ; RANK Ligand ; Tooth Movement Techniques
7.The construction of conceptual model for community-dwelling elderly people's fatigue experience and its use value
Xi ZHANG ; Fumin DAI ; Yurong CHEN ; Li LIU ; Huinan ZHAO
Chinese Journal of Practical Nursing 2014;30(17):11-14
Objective To investigate the fatigue experience of the community-dwelling frail elderly to establish the conceptual model.Methods Grounded theory was adopted.With MAXQDA v10.4.15.1for 3 levels coding,the conceptual model of fatigue experience of community-dwelling frail elderly people was structured through constant comparison and in-depth analysis.Results Multi-response,selfmanagement,safe and belonging,hitting rock bottom,accepting and transferring formed the conceptual model.Conclusions Based on the conceptual model,nurses should pay more attention to concern about the fatigue experience of community-dwelling frail elderly people,and probe different assessment methods to enrich comprehensive geriatric assessment (CGA),then improve the community health service level and the quality of elderly people's life.
8.SWOT-analysis on caring for the patients continuously in medical reform to public hospital
Xi ZHANG ; Fumin DAI ; Yurong CHEN ; Huinan ZHAO
Chinese Journal of Practical Nursing 2014;30(11):8-11
Objective To explore the opportunities and challenges which COC (continuity of care) has been facing,some strategies were proposed and improved continuously during the process of deepening medical reform in public hospital,and at the same time to supply reference for government to make relative policy.Methods By SWOT-analysis,the strengths,weaknesses,opportunities as well as threats of COC in medical reform were analyzed comprehensively.Results Depending on national relevant policies,supportive measures,the cooperation from multidisciplinary team was improved.Along with strategies of strengthening advantages,weakening disadvantages,meeting challenges and facing up to threat.COC had be approved and consented initially.Conclusions Public hospitals should demonstrate their various resources and make full use of their advantages,then guide and solid grass-roots in the new healthcare system which integrate medical,rehabilitation and elderly nursing out of the hospital.It must benefit the hospital,specialized subject,family and society.
9.Effects of Shenfu injection on prostacyclin, thromboxane A2 and activities of ATPases in rats exposed to hepatic ischemia-reperfusion injury
Songlin PENG ; Xi GU ; Chaoliu DAI ; Yong HUANG ; Yong ZHAO
Journal of Integrative Medicine 2007;5(4):427-31
OBJECTIVE: To explore the effects of Shenfu Injection on prostacyclin, thromboxane A2 and the activities of ATPases in rats exposed to hepatic ischemia-reperfusion injury. METHODS: Twenty-four male Wistar rats weighing 200-250 g were randomly divided into two groups: Shenfu Injection (SF)-treated group (rats were treated with Shenfu Injection of 10 ml/kg through intraperitoneal injection) and untreated group (rats were administered with normal saline at the same dose and served as a control group). Hepatic ischemia was caused by Pringle's maneuver and lasted for fifteen minutes, and then one-hour or three-hour reperfusion was performed. Venous blood samples for the measurement of thromboxane B(2) (TXB(2)) and 6-keto-prostaglandin F(1 alpha)(6-keto-PGF(1 alpha)) were collected three hours after reperfusion. Liver tissue samples were collected one hour or three hours after reperfusion for the measurement of Na(+)-K(+)-ATPase and Ca(+)-Mg(+)-ATPase and for morphological studies. RESULTS: Plasma TXB(2) was lower in the SF-treated group than that in the untreated group after three-hour reperfusion (P>0.05), while 6-keto-PGF(1 alpha) was higher in the SF-treated group than that in the untreated group (P>0.05). The ratio of TXB(2) and 6-keto-PGF(1 alpha) was significantly lower in the SF-treated group than that in the untreated group (P<0.05). The activities of Na(+)-K(+)-ATPase and Ca(+)-Mg(+)-ATPase in the SF-treated group were improved obviously. A three-hour reperfusion after fifteen-minute ischemia caused important hepatic histological alterations. Marked structural abnormalities were observed in the untreated group, such as massive hepatocyte swelling, necrosis, mitochondria edema and vacuolar changes. In the SF-treated group, hepatic tissue injury was reduced significantly. CONCLUSION: Shenfu Injection protects hepatic tissue from ischemia-reperfusion injury, and such protective effects are achieved by decreasing the ratio of thromboxane A(2) and prostacyclin, and increasing the activities of Na(+)-K(+)-ATPase and Ca(+)-Mg(+)- ATPase.
10.The study on influencing factors and countermeasures for medication safety to the elderly residents living in community and nursing facility
Huinan ZHAO ; Fumin DAI ; Xi ZHANG ; Shuying ZHOU ; Yurong CHEN
Chinese Journal of Practical Nursing 2014;30(1):4-6
A comprehensive analysis was carried out about the influencing factors of medication safety in the elderly with multiple chronic diseases,who lived in the community and stayed at their own homes.Applicable and simple preventive countermeasures should be established to ensure the medication safety outside medical agency.We should promote extending service of hospitals,cooperate with community and nursing facility in order to increase life quality of the elderly,and supply reference for professional continuous service model including rapid aging,empty nest with advanced age,disability and dementia and elderly people with chronic diseases.