Natural products especially flavonoids are being explored for their therapeutic potentials in reducing bone loss and maintaining bone health. The present study is to investigate the effects of isoquercitrin from Craibiodendron yunnanense with different concentrations at 1 x 10(-4), 1 x 10(-5), 1 x 10(-6), 1 x 10(-7) mol x L(-1) on proliferation, differentiation and mineralization of MC3T3-E1. Cell proliferation was assessed by CCK-8 kit at 1, 3, 5 and 7 days of culture. Alkaline phosphatase (ALP) activity were performed qualitatively and quantitatively on day 7, and alizarin red S staining was employed to access the mineralization of cells on day 21. The osteogenic markers ALP, collagen type I (COL 1A1), runt-related transcription factor 2 (Runx-2) and Osterix were detected to analysis early osteogenic differentiation of cells on day 3 by RT-PCR. The results showed that isoquercitrin had a dose-dependent effect on the proliferation, osteogenic differentiation, mineralization and gene expression of MC3T3-E1 in the range from 1 x 10(-7) to 1 x 10(-5) mol x L(-1). At concentrations above 1 x 10(-4) mol x L(-1) isoquercitrin showed cytotoxicity, while 1 x 10(-6) mol x L(-1) is the optimal concentration of isoquercitrin to improve the osteoblastic activity. All these results implied that isoquercitrin might be the major composition of traditional Chinese medicine C. yunnanense to treat bone fractures.
Alkaline Phosphatase ; metabolism ; Animals ; Cell Line ; Collagen Type I ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Ericaceae ; chemistry ; Mice ; Osteoblasts ; cytology ; drug effects ; metabolism ; Osteogenesis ; drug effects ; Quercetin ; analogs & derivatives ; pharmacology

Objective To explore the clinical and genetic characteristics of 17 cases with glucose-6-phosphate dehydrogenase(G6PD) deficiency in Guizhou,China.Methods The clinical features of 17 patients with G6PD deficiency were analyzed,DNA samples were obtained from the patients and some mothers,and the exons and flanking intronic sequences of the G6PD gene were analyzed by the polymerase chain reaction and sequencing.Results The cases had diverse phenotypes,these patients had acute haemolytic anaemia triggered by eating broad beans,infections,ingestion of specific drugs or the neonatal period and chronic nonspherocytic haemolytic anaemia.Three cases of the patients had concomitant diseases for α Mediterranean anemia,acute myeloid leukemia M2 type and neonatal anal membrane stenosis,respectively.G1376T,G1388A and A95G were the commonest G6PD variants in patients in Guizhou,China.G1376T,G1388A and A95G mutations were observed in 82.4％ cases.Two patients had only compound variants(c.1311 C ＞ T,IVS11 nt 93 T ＞ C).One case in the Rongjiang County,Guizhou Province had novel compound variants (c.G1388A,IVS10-10 T ＞ G) in the world.A patient's mother in the Guiyang City,Guizhou Province,China had compound variants (c.1376 G ＞ T,1311 C ＞ T,IVS11 nt 93 T ＞ C) as a carrier.Conclusions G6PD deficiency has a wide range of clinical heterogeneity.A novel G6PD compound variant haplotype c.G1388A,IVS10-10 T ＞ G was first found in the world,and the SNP spectrum of G6PD was enlarged.There may be a G6PD compound variant haplotype c.1376 G ＞ T,1311 C ＞ T,IVS11 nt 93 T ＞ C in Guizhou.

Objective To study the changes and significance of Bid gene expression in hypoxic-ischemic brain damage (HIBD) in neonatal rats.Methods The animal models of HIBD were made. Total RNA from ipsilateral cerebral hemisph ere was extracted.RT-PCR was used to evaluate the levels of Bid gene expression at different time points after hypoxic-ischemic. Results The levels of Bid mRNA were higher in HIBD rats than those in normal rats.The ex pression of Bid mRNA in ipsilateral hemiphere following cerebral hypoxic-ischem ic began to increase at 6 h, increased to the highest level at 24 h, and then gr adually returned.Conclusion The upregulation of Bid mRNA can play a role in the induction of apoptosis fol lowing cerebral hypoxic-ischemic. J Appl Clin Pediatr,2005,20(2):121-122

Antineoplastic Agents ; administration & dosage ; therapeutic use ; Child ; Female ; Humans ; Injections, Intralesional ; Interferon-alpha ; administration & dosage ; therapeutic use ; Male ; Neoplasms ; drug therapy ; Recombinant Proteins ; Treatment Outcome

Objective:To observe the therapeutic effect of electroacupuncture (EA) at Zusanli (ST 36),Guanyuan (CV 4) and Ashi points on adjuvant arthritis rats,and explore the mechanism of EA treatment of rheumatoid arthritis (RA).Methods:Sixty male rats were randomly divided into a normal group,a model group,a methotrexate group and an EA group,with 15 rats in each group.Rats in the normal group and the model group were routinely raised and did not receive treatment;rats in the methotrexate group received methotrexate at a dose of 0.35 mg/(kg·bw),twice a week for 3 weeks;rats in the EA group received acupuncture at Zusanli (ST 36),Guanyuan (CV 4) and Ashi points,and the bilateral Zusanli (ST 36) and Ashi points were connected to EA apparatus,once a day for 3 weeks.The general status,the swelling degree of the toe,the arthritis index (AI) score,the pathological morphology of the ankle joint,and the mRNA expressions of cellular inhibitor of apoptosis protein (c-IAP) 1 and c-IAP2 in joint synovial tissue cells of the rats in each group were observed.Results:The swelling degree of the toe,AI score and mRNA expressions of c-IAP1 and c-IAP2 in the model group were significantly higher than those in the normal group (all P＜0.05).Compared with the model group,the swelling degree of the toe,AI score and mRNA expressions of c-IAP1 and c-IAP2 in the methotrexate group and the EA group improved (P＜0.01 or P＜0.05);the expressions of c-IAP1 mRNA and c-IAP2 mRNA in rat synovial tissues in the EA group were significantly higher than those in the methotrexate group (P＜0.01).Conclusion:EA alleviates joint swelling in rats with adjuvant arthritis.The mechanism may be related to suppressing mRNA expressions of c-IAP1 and c-IAP2,thus to induce apoptosis of synoviocytes.

OBJECTIVE: To analyze the characteristics in the incarcerated inmate's death, investigate the main cause of death of the incarcerated inmate and provide some information for forensic investigation. METHODS: The cases from the forensic medical center of Shanxi Medical University from 2005 to 2013 were selected. The statistical analysis was performed by using the incarcerated inmate's gender, age, cause of death, manner of death, and disease as the markers. RESULTS: There were 100 men, 5 women in the 105 incarcerated inmates; the age range was from 16 to 65 years; Inmates were mostly died of natural diseases, mainly in the respiratory and cardiovascular diseases; the main unnatural death was suicide with a rate of 54.5%. CONCLUSION At present, most incarcerated inmate's death are due to natural diseases. The prison should improve incarcerated inmate's lives, work and health care conditions, and strengthen supervision of law enforcement.
Adolescent ; Adult ; Aged ; Cardiovascular Diseases/mortality* ; Cause of Death ; Female ; Humans ; Male ; Middle Aged ; Prisoners/statistics & numerical data* ; Prisons ; Respiratory Tract Diseases/mortality* ; Suicide ; Young Adult

Objective To explore the effect of long-term depleted uranium (DU)ingestion on testosterone production in rats, and its involvement mechanism. Methods Male and female rats (F0 and F1 respectively) for 160 days, respectively. The contents of testosterone (T), luteinizing hormone (LH), and follicle stimulating hormone (FSH) in serum were detected in 20 months of F0 generations, and 15 months of F1 generations. RT-PCR was used to analyze the levels of StAR mRNA and P450scc mRNA. Results Compared with the normal control group, the testosterone contents in exposed F0 and F1 generations increased, the lowest was 51.73 U/L, but those of LH and FSH decreased. The expression of StAR mRNA in the low-doze group of F1 generation (StAR/β-actin = 1.35) was up-regulated, down-regulated for other groups.compared with the normal control group (P450scc/β-actin = 0. 313), the expression of P450scc mRNA in the low- and high-dose groups of F0 generation were decreased (P450scc/β-actin = 0.21), and those in the low- and high-dose groups of F1generation were increased (P450scc/β-actin = 0.623) (P ≤ 0.01). Conclusion Long-term DU exposure inhibit the male reproduction by intervening the sexual hormone production through down-regulated the expression of StAR mRNA and P450scc roRNA.

Objective To investigate etiology of acute pneumonia in children in order to provid basis for clinical diagnosis and treatment.Methods The children with acute pneumonia who were hospitalized in children's hospital affiliated to Suzhou university were selected.And the sputum of them were collected.Bacteria and virus were tested using sputum culture and direct immunofluoresence respectively.Antibodies against mycoplasma and chlamydia were detected by enzymelinked immunosorbent assay(ELISA) in paired sera. Results Microbial etiology was obtained in 360 cases (67.7%) of 532 patients.Viral infections were in 178 cases (33.5%).Bacterial infections were in 23 cases (4.3%),mycoplasma pneumoniae 50 cases (9.4%) and chlamydia pneumoniae 19 cases (3.6%),compound infections 90 cases (16.9%).Respiratory syncycial virus was the major viral pathogen,streptococcus pneumoniae were the prominent pathagens of bacterial pneumonia,followed by haemophilus influenza.Conclusions Viral infection is the most common cause of acute pneumonia in children in Suzhou area during winter and spring,followed by mycoplasma pneumoniae,bacteria and chlamydia pneumoniae.Mycoplasma pneumoniae infection is more common in children older than 3 years,chlamydia pneumoniae infection is more in infants less than 3 months,most of compound infection children were below the age of 3 years.

Objective To investigate the bid gene expression and cell death in brain after cerebral hypoxia-ischemia in neonatal rats and the effects of dexamethasone(DEX)on bid gene expression,so as to elucidate the possible mechanism of the neuroprotective effect of DEX pretreatment on rats following cerebral hypoxia-ischemia.Methods Twenty-four SD neonatal rats were divided randomly into hypoxia-ischemia brain damage(HIBD),normal,dexamethasone-pretreated and 9 g/L NaCl(NS)control group.The animal models of HIBD were made.Total RNA from ipsilateral cerebral hemisphere was extracted.Reverse transcription polymerase chain reaction(RT-PCR)was used to evaluate the level of bid gene expression after hypoxia-ischemia.Cerebral apoptosis was determined by terminal-deoxynucleotidy transferase mediated d-UTP nick end labeling(TUNEL).Results The levels of bid mRNA were higher in HIBD rats than those in normal rats.The number of positive apoptosis cells significantly increased in HIBD group(P

Objective To explore the cellular inhibitor of apoptosis protein 1(cIAP1)gene expression and Caspase-3 activity in brain after cerebral hypoxia-ischemia in neonatal rats and the influence of dexamethasone(DEX)on cIAP1 gene expression and Caspase-3 activity,so as to elucidate the possible mechanism of the neuro-protective effect of DEX pretreatment on rats following cerebral hypoxia-ischemia.Methods Twenty-four SD neonatal rats were divided randomly into hypoxic-ischemic brain damage group(HIBD group),normal group(NS group),dexamethasone-pretreated group(DEX group)and 9 g/L NaCl control group(NS group).The animal models of HIBD were made.Total RNA from ipsilateral cerebral hemisphere was extracted.Reverse transcription polymerase chain reaction(RT-PCR)was used to evaluate the level of cIAP1 gene expression after hypoxia-ischemia.Caspase-3 relative activity of brain tissue was determined by colorimetric assay.Results The levels of cIAP1 mRNA were lower in HIBD group than those in NS group.Caspase-3 relative activity significantly increased in HIBD group(P