ABSTRACT
Objective To establish an osteoporosis model in tree shrews by bilateral ovariectomy.Methods One hundred healthy 6-24 month old female tree shrews were used in this study.The diagnosis and treatment of osteoporo-sis in the model tree shrews was assessed according to the Interpretation of the Clinical Practice Guideines for Primary Oste-oporosis 2011 released by the Chinese Medical Association of Osteoporosis and Bone Mineral Salt Disease Branch.① Ac-cording to the human natural life span, sexual maturation time and peak bone mineral density ( PBMD) and the tree shrew natural life span and sexual maturation time, we estimated the PBMD of tree shrew in the age of months.Six 6-, 12-, 18-and 24-month old tree shrews in each group were randomly taken for measurement of BMD, and compared the differences between groups to verify the PBMD age of tree shrews.②We chose 62 6-month old tree shrews from the rest of tree shrews to measure their BMD to determine the mean and standard deviation of BMD.Then we divided them into study group ( n =32) and control group (n =30).Bilateral ovariectomy was performed in the study group, while omentectomy was done in the control group.BMD was measured at 3, 6, 9, 12 months after the surgery, 6 animals from each group.The animals which met the criteria of guideline were taken for pathological examination.Results ①The PBMD of 6-, 12-, 18-, 24-month old tree shrews was 0.138 ±0.012, 0.143 ±0.010, 0.141 ±0.009, and 0.139 ±0.009) g/cm2 , respectively, showing no significant differences among them (P>0.05).②The mean PBMD of the tree shrews was 0.143 ±0.016 g/cm2 .③In the model groups, the number of tree shrews whose BMD met the criteria of guideline was 0, 5, 4, 5, respec-tively.The pathological examination of the proximal tibia from the model group showed sparse and some disrupted trabecu-lae and enlarged inter-trabecular space.In the control group, the tibia tissues showed normal histology of bone structure and no one tree shrew showed a BMD value which met the criteria of diagnosis of osteoporosis.Conclusions An osteopo-rosis model in tree shrews can be established at 6 months after bilateral ovariectomy, showing similar manifestation of osteo-porosis in postmenopausal women.The success rate of this modeling method is high and the model is stable.
ABSTRACT
Objective To analyze the effect of community physicians' following-up on type 2 diabetes management in community.Methods A total of 99 local patients with type 2 diabetes,who were selected randomly and divided into management group (49 cases) and control group(50 cases).The patients in management group were accepted diabetes management in community with community physicians' following-up.The patients in control group were followed to see the doctor in endocrinology clinic based ontheir consciousness.The changes of related indicators between two groups after 10 months of different kinds of diabetes management were compared.Results After management,the levels of body mass index (BMI),fasting blood glucose (FBG),triacylglycerol (TG),total cholesterol (TC),etc in management group were significantly better than those in control group,and there were significant differences (P ＜ 0.05).The medical compliance rate of diabetes-related behavior in management group was significantly better than that in control group,and there was significant difference (P ＜ 0.05).The multi-factor analysis showed that high level of BMI,FPG,TG,TC were risk factors of blood glucose control in type 2 diabetes (P ＜ 0.05),while high level of success rate of blood pressure,prescribed rate of medication,adherence rates of diabetes diet had promotion to blood glucose control of type 2 diabetes.Conclusion Type 2 diabetes management in community with community physicians'following-up is useful for improving diabetes management effectiveness and quality.
ABSTRACT
BACKGROUND:The studies addressing osteoporosis in male starts relatively late,which lack effective and acknowledged method in treating.Epimedium,a Chinese medicine can be used in treating with osteoporosis for its obvious regulation of immune system,skeleton and reproductive system.OBJECTIVE:To investigate the effects of epimedium on bone mineral density(BMD) and bone structure performance in male castrated rats.DESIGN,TIME AND SETTING:The randomized controlled animal study was performed at the Geriatric Disease Laboratory of Tongji Medical College,Huazhong University of Science and Technology from January 2007 to April 2008.MATERIALS:Fifty adult,healthy,male,Sprague Dawley rats,weighing 340?10 g,with 15-week-old,were selected to prepare osteoporosis models.METHODS:Fifty rats were assigned to the control,model and three treated groups,with 10 animals in each group.The rats in the treated groups were treated by epimedium with different doses at 2 weeks after models preparation for 12 weeks.The doses were 1.0(low dose),5.0(medium dose),10.0(high dose) g/(kg?d) respectively.The animals in the other group were treated by aequales sodium chloride.MAIN OUTCOME MEASURES:Biochemical markers,BMD and bone morphometry of rats the fourth lumbar vertebra was evaluated after damaged by self-made SL22000 bone fatigue system.RESULTS:The BMD in the control,medium high dose groups were higher than that of the model group(P
ABSTRACT
In order to characterize the effects of 17β-estradiol (17β-E2) on the expression of IL-6,IL-11 and NF-κB in the human MG-63 osteoblast-likecell line, the expression of IL-6 was detected by RT-PCR, Northern blot and Western blot. The expression of IL-11 was determined by RT-PCR, and NF-κB by Western blot. The results showed that 17β-E2 down-regulated the expression of IL-6 mRNA and protein, IL-11 mRNA and NF-κB protein in MG-63 cells. It was suggested that the expression of NF-κB, IL-6 and IL-11 in MG-63 cells could be suppressed by 17β-E2, and this might lend support to estrogen replacement therapy in postmenopausal women.
ABSTRACT
AIM: To discuss the effects of phytoestrogenic-genistein on cathepsin K (CK) expression stimulated by interleukin-1α (IL-1α) in osteoclast-like cells (OCLs) . METHODS: The OCLs were isolated from tissue of human giant cell tumor of bone (GCT) . The cells treated with reagents were divided into 7 groups including control (treated with phenol red-free-DMEM), vehicle (treated with 1.2 nmol· L-1 IL- 1α), 10-10-10-6genistein, genistein+ ICI 182.780, and 17[β-estrodiol (17β-E2) group. The cells were treated with 1.2 nmol· L-1IL-1α after pre-treated with genistein or 17β-E2 for 48 h (excluded the control group) . Expression of CK wasdetermined by reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blot in OCLs stimulated by IL-1α in the presence of genistein or 17[β-E2. RESULTS: The obvious increase of expression of CK by IL1α in vehicle group was noted in comparing with control group (P ＜ 0.01 ) . Genistein down-regulated CK gene expression stimulated by IL-1α at the transcription level in a dose-dependent manner (r = 0.68, P ＜ 0.01 ) .Genistein down-regulated CK protein expression stimulated by IL-1α also in a dose-dependent manner (r = 0.61,P ＜ 0.01 ). The effects of genistein were abrogated partly after treatment with the estrogen receptor antagonist ICI 182.780. CONCLUSION: Genistein inhibits CK expression stimulated by IL-1α partly through estrogen receptor in OCLs.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the relationship between angiotensin converting enzyme (ACE) gene and exercise-induced silent myocardial ischemia (SI) in patients with type 2 diabetes mellitus.</p><p><b>METHODS</b>One hundred and eight patients suffering from type 2 diabetes mellitus with normal rest electrocardiograph and 50 healthy individuals were selected randomly. SI was diagnosed with treadmill exercise test and ACE genotypes were detected with PCR.</p><p><b>RESULTS</b>(1) The control group and type 2 diabetes mellitus group had similar distribution of ACE genotypes and alleles (P>0.05). Compared with the non-SI group, the SI group had significantly higher ACE D allele prevalence (Chi-square=4.501, P<0.05); however, the two groups had similar prevalence of ACE genotypes (P>0.05). (2) There were no significant differences in clinical characteristics and serum lipoproteins among the three ACE genotypes (II, DD,ID) of type 2 diabetes mellitus (P>0.05). (3) The prevalence of SI in DD group was found to be 68.2%, which was significantly higher than that in II genotype group (39.5%, Chi-square=4.593, P<0.05).</p><p><b>CONCLUSION</b>ACE D allele increases the risk of SI in type 2 diabetes mellitus.</p>
Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Diabetes Mellitus, Type 2 , Blood , Genetics , Exercise , Physiology , Gene Frequency , Genetic Predisposition to Disease , Genetics , Genotype , Lipoproteins , Blood , Myocardial Ischemia , Diagnosis , Genetics , Peptidyl-Dipeptidase A , Genetics , Polymerase Chain ReactionABSTRACT
As the code of behavior, honest-trust has its theoretical foundation of ethics. From the point of view of morality-justice, honest-trust is the ethical code of behavior; from the point of view of utilitarianism, honest-trust is the basic demand for increasing social welfare; from the point of view of responsibility and right, honest-trust is the responsibility and right of social members. Nowadays society should construct the social environment and mechanism of honest-trust, which can not be limited in the views of morality-justice and utilitarianism, but should be constructed in term of managing society and based on the responsibility and right.