Osteoblasts (OB) isolated from newborn SD rats were cultured in vitro.After treatment with different concentrations of 17?-estradiol (10~(-11)-10~(-6)mol/L),the mRNA expressions of osteoprotegerin (OPG) and osteoclast differentiation factor (ODF) in OB were measured by RT-PCR.17?-estradiol increased the expression of OPG in OB with the maximal effect at the concentration of 10~(-8) mol/L.No significant difference was observed in the expression of ODF in OB with different concentrations of 17?-estradiol.The therapeutic effect of estrogen on osteoporosis appears to be related to the enhanced OPG expression in OB at physiological concentration of estrogen.

Objective To establish a rat model of pulmonary hypertension induced by left-to-right shunt and explore the influence of high pulmonary blood flow on pulmonary vascular collagen remodeling.Methods Abdominal aorta and inferior vena cava shunting was produced in rats. Pulmonary artery meanpressure (PAMP) of each rat was measured by using a right cardiac catheterization.Pulmonary artery collagen Ⅰ and Ⅲ were detected using immunohistochemisty.Results After 11 weeks of shunting the Qp/Qs was 3.3∶1.0,indicating a large shunt. Pulmonary artery mean pressure was increased as compared with controls[(23.0?0.9) mm Hg vs (15.7? 1.1) mm Hg,P

Acupuncture Therapy ; Aged ; Aging ; Hair Color ; Humans ; Male

Objective To study the impact of therapy strategy on outcomes of patients suffering from severe sepsis and/or septic shock. Method A total of 195 patients diagnosed as severe sepsis or septic shock were enrolled for prospective study from June 2008 to December 2009. Patient's clinical manifestation,treatments and outcomes were studied by using SSC database. Patients were divided into control group and treatment group. In control group, patients enrolled from June 2008 to December 2008, were treated with conventional medical care In treatment group, patients enrolled from January 2009 to December 2009 were treated with a novel algorithm of mandatory treatment for sepsis In-hospital mortality of two groups was compared. SPSS15.0 software was used for analysis of data. Chi-square test and unpaired t-test were used for comparisons between groups. Results Compared to the control group The need for blood lactate test was significantly grown in treatment group [98.2% (115/117) versus 2.56% (2/78), P ＜ 0.001]. Antibiotics was administered to 69.2% (81/117) patients of treatment group within 3 hours after their arrival at the emergency department compared to 35.8% (28/78) in the control group (P ＜ 0. 001). Blood cultures made before antibiotics given were 47.9% (56/117) in the treatment group compared to the control group 25.6%(20/78), P = 0. 003. The rate of fluid resuscitation was 80.3% (53/66) in the treatment group and 27%(10/37) in the control group, P ＜0.001. The rate of CVP (8 mmHg was 27.3% (18/66) in the treatment group and 8.1% (3/37) in the control group, P = 0. 023. In-hospital mortality was 29.1% (34/117) in the treatment group and 44.8% (35/78) in the control group, P =0. 032. Conclusions The algorithm of mandatory treatment for sepsis improved the therapeutic efficacy of the treatment for severe sepsis and septic shock, decreasing in-hospital mortality.

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Objective To analyze the characteristics of auditory verbal memory impairment in mild Alzheimer's Disease (AD) and Mild Cognitive Impairment (MCI).Methods Auditory verbal memory test was performed in 72 patients with MCI,45 patients with mild AD,and 62 normal controls.Results Significant intergroup differences were found in total former five free recall and learning scores,The MCI subjects( 16.4?5.5,2.6?1.7)performed significantly more poorly than the normal control subjects(NC) (30.2?5.6,3.4?1.9),and mild AD categories (9.8?4.1,2.0?1.2) showed lower results than the MCI subjects(t=2.26,P

Objective To learn family burden and the social supports of the family members of type 2 diabetics with chronic complications. Methods The questionnaires of "The family burden scale of patient with diabetic complications" and "The social support scale" were used to investigate the type 2 diabetics with chronic complications and their family members who are in the endocrinology department of a Hospital during June to November in 2006. Results The total score of family burden was (17.94 ± 12.08). The positive answer rate of family burden was 94.2% . The positive answer rate of the each dimension was all above 50% , except the dimension of the impact on the psychological health of the members of the patient' s family, and the positive answer rate of it was 49.7%. The total score of social support of family members was (38.14 ± 8.75). Conclusions The family burden of type 2 diabetics with chronic complications is common, and are existed in every dimensions. The social support of family members is low.

We in the present study observed the effect of N-fructose modified chitosan quaternary ammonium derivatives on on rat skin wound healing through animal experiments. Forty rats were randomly divided into eight groups (5 in each group). Four groups among the all 8 groups were the experimental groups, while the other 4 groups were the control groups. Next to the skin along the back of the spine, 1.50 cm x 2.00 cm x 0.16 cm full-thickness skin was cut to make an excision wound model for every rat. Those in the experimental groups were treated with the N-fructose-modified chitosan quaternary ammonium derivatives ointment dressing the wound, while those in the control groups with sterile medical vaseline processing. We dressed the wounds twice a day to observe the wound healing of all rats in different groups. We then observed the wound healing and wound pathology after 3, 7, 10, 15 days re spectively in different groups. Results showed significant differences of the time of wound healing, area of wound healing and volume of wound healing between the experimental groups and control groups (P < 0.05). It can be well concluded that N-fructose-modified chitosan quaternary ammonium derivatives does not harm the skin, but could promote skin healing, so that they could be suitable skin repair materials and ideal raw materials for medical dressing.
Animals ; Bandages ; Chitosan ; therapeutic use ; Polymers ; therapeutic use ; Quaternary Ammonium Compounds ; therapeutic use ; Rats ; Skin ; pathology ; Wound Healing

Objective To explore the change of multiple electrocardiogram(ECG) parameters and their impact on P-R interval in pregnant women.Methods Healthy women aged 20-40 years were enrolled and divided into 4 groups:control group (n =194),early-pregnant group (n =172),mediate-stage group (n =105)and late-phase group(111).The following data were collected for analysis:heart rate (HR),axis,rotation,P-R interval(on lead V3),and p wave duration(on lead Ⅱ).Between-group analysis and multiple liner regression analysis were conducted.Results Compared with the control group,we found no significant difference in the early-pregnant group,but HR significantly increased in the mediate-stage group and late-phase group((77.76 ± 14.75) beat/min vs.(78.12 ± 11.24) beat/min vs.(84.21 ± 11.91) beat/min vs.(88.15 ± 15.05) beat/min,P ＜ 0.05).BP increased with the duration of pregnancy.Axis and P wave duration decreased with the duration of pregnancy.We found no significant difference in the early-pregnant group,but significantly decreased axis and P wave duration in the mediate-stage group and late-phase group (axis:(61.11 ± 225.84) ° vs.(56.97 ±25.17)° vs.(50.11 ±21.78)° vs.(41.72 ±28.36)°,P ＜0.05;P wave duration:(0.100 ±0.015)s vs.(0.099 ± 0.012) s vs.(0.095 ± 0.013) s vs.(0.093 ± 0.013) s,P ＜ 0.05).P-R interval was significantly shorter in women at all the three stages of pregnancy than in the healthy controls ((0.145 ± 0.021)) svs.(0.138±0.019) s vs.(0.133 ±0.020) s vs.(0.131 ±0.019) s,P ＜0.05).There was no significant difference found in heart rotation proportion among the four groups.Multiple liner regression analysis indicated that only pregnancy factors (t =-4.607,P =0.000) and p wave duration (t =9.339,P =0.000) had significant influences on P-R interval.Conclusion P-R interval is negatively correlated to pregnancy stage and positively correlated to p wave duration,but irrelevant to HR and axis in pregnant women.

Promotion of outstanding people to head nurses is key to hospital nursing management.In view of the current shortcomings in the analysis of appraisal data and the interpretation of appraisal results,the analysis of means(ANOM)method is introduced to the process of hospital human resource management.The proposed method aims to solve the problem when the score differences between interviewers are great and the score differences between candidates are small.An example for head nurses' promotion appraisal in a hospital is offered to demonstrate that statistical tools can provide the decision support for hospital personnel selection.Finally,the application differences between ANOM and analysis of variance(ANOVA) in human resources appraisal are compared.