Objective: To observe the clinical efficacy of acupoint injection with salmon calcitonin for back pain in elderly patients with primary osteoporosis. Methods: A total of 76 patients were selected and randomly divided into two groups by the random number table method, with 39 cases in the treatment group and 37 cases in the control group, respectively. Patients in both groups received routine anti-osteoporosis treatment. Patients in the treatment group received additional acupoint injection with salmon calcitonin at bilateral Pishu (BL 20) and Shenshu (BL 23), while patients in the control group received additional intramuscular injection with salmon calcitonin. The treatments for both groups were given once a day and lasted for 4 weeks. Visual analog scale (VAS) and Chinese Oswestry disability index (CODI) scores were observed before treatment, after 2 weeks and 4 weeks of treatment, and the use of analgesics during the treatment were recorded. Results: After treatment, the clinical efficacy in the treatment group was more significant than that in the control group (P<0.05). After 2 weeks and 4 weeks of treatment, the VAS scores in both groups showed significant intra-group and between-group differences (all P<0.05), and the CODI scores in both groups showed significant intra-group differences (all P<0.05). After 2 weeks of treatment, the CODI score showed no significant between-group difference (P>0.05). After 4 weeks of treatment, the improvement of CODI score in the treatment group was more significant than that in the control group (P<0.05). During the treatment, 2 cases in the treatment group took analgesics versus 8 cases in the control group, and the result showed a significant between-group difference (P<0.05). Conclusion: For back pain in elderly patients with primary osteoporosis, based on the routine treatment of oral medication, the clinical efficacy of acupoint injection with salmon calcitonin at bilateral Pishu (BL 20) and Shenshu (BL 23) is more significant than that of intramuscular injection. Acupoint injection treatment can improve patients' conditions and reduce the use of analgesics.

Objective To determine associations between weight gain induced by antipsychotic and the polymorphisms of HTR2C gene -759C/T and -697G/C,histamine-1 receptor gene,leptine gene -2548G/A,and adiponectin gene +276G/T and +45T/G.Methods In the casematched study,85 patients who gained more than 7％ of their pre-drug body weight served as the study group and another 85 patients who gained less than 7％ of their pre-drug body weight served as the control group.The ligation diction reaction technique was used to analyze the frequencies of the -759C/T and -697G/C polymorphism of the HTR2C gene,-2548A/G polymorphism of leptin gene,+ 276G/T and + 45T/G polymorphism of adiponectin gene and glu349asp polymorphism of H1 receptor gene.Results The presence of the -759C allele,-697G allele,-2548A allele and + 276G allele was significantly higher in the study group than that in the control group (P ＜ 0.05 ).Conclusion The -759C/T and -697G/C polymorphisms of the promoter region of 5HT2C receptor gene,-2548A/G polymorphisms of leptin gene and + 276G/T polymorphisms of adiponectin gene may be associated with the antipsychotic induced weight gain.The glu349asp polymorphisms of histamine-1 receptor gene is not associated with antipsychotic induced weight gain.

Objective To investigate the function of helper T lymphocyte cell(Th)1/Th2 cytokine in food allergy development.Methods A total 110 Balb/c mice were randomly divided into 2 groups:control group(40 mice)and food allergy group(70 mice).Food allergy animal models were established by ovalbumin,performed by skin prick test;in positive reaction mice,serum specific IgE,IL-4 and IFN-? were measured by enzyme linked immuosorbent assay(ELISA),and intestinal pathology were performed,and the mRNA expressions of IL-10,TGF-? in intestinal were measured by real-time PCR assay.Results In food allergy group,the mRNA expression of IL-10,TGF? in intestinal decreased(P

AIM To establish an HPLC-ELSD method for the simultaneous content determination of gastrodin,parishin A,parishin B,ginsenosides Rg1,Re,Rf,Rb1 and Rd in Tiantai No.1 Tablets (Ginseng Radix et Rhizoma,Gastrodiae Rhizoma,Cistanches Herba,etc.).METHODS The analysis of methanol extract of this drug was performed on a 45 ℃C thermostatic Alltima C1scolumn (4.6 mm × 250 mm,5 μm),with the mobile phase comprising of acetonitrie-0.1％ phosphoric acid flowing at 1.0 mL/min in a gradient elution manner.RESULTS Eight constituents showed good linear relationships within their own ranges (r ＞ 0.999 0),whose average recoveries were 96.94％-97.93％ with the RSDs of 1.06％-2.48％.CONCLUSION This simple,accurate and reliable method can be used for the quality control of Tiantai No.1 Tablets.

AIMTo investigate the sweat regulation mechanism of human body.

METHODSArm muscular work was performed on bicycle ergometer by eight healthy male subjects on 20 W and 40 W work loads lasting 10 min or 20 min in 16 degrees C and 21 degrees C ambient temperature. Sweat, metabolic rate and corresponding skin and core temperature changes were measured during different periods.

RESULTSSweat varied directly with ambient temperature and there were the corresponding changes in mean skin temperature, rectal temperature and metabolic rate. And when the work load was elevated, the skin temperature at chest and metabolic rate increased as sweat increased. There were no differences in the physiological indices between 20 W 20 min and 20 W 10 min, but mean skin temperature and sweat rate during 40 W 20 min work were higher than 40 W 10 min while metabolic rate did not change. The time when chest temperature arrived at the threshold was in correspondence with obvious sweat onset. Both local skin temperature at chest and metabolic rate were significantly correlated with sweat, but the latter was stronger. The regression equation relating metabolic rate and sweat rate was compound function.

CONCLUSIONSkin temperature was important for sweat onset, and the sweat predicted model based on the metabolic rate or ambient temperature was more suitable and practical.

Adult ; Body Temperature Regulation ; physiology ; Energy Metabolism ; Environment ; Humans ; Male ; Sweating ; physiology ; Temperature

miR-200c has been shown to regulate the epithelial-mesenchymal transition (EMT) by inhibiting ZEB1 and ZEB2 expression in breast cancer cells. This study further examined the role of miR-200c in the invasion and metastasis of breast cancer that goes beyond the regulation on ZEB1 and ZEB2 expression. In this study, the bioinformatics software (miRanda) was used to predict the target gene of miR-200c and Renilla luciferase assay to verify the result. The metastatic breast cancer cells MDA-MB-231 were cultured and transfected with the miR-200c mimic or inhibitor. The expressions of miR-200c and HMGB1 were detected by RT-PCR and Western blotting, respectively. Transwell assay and wound healing assay were employed to examine the invasive and migrating ability of transfected cells. Target prediction and Renilla luciferase analysis revealed that HMGB1 was a putative target gene of miR-200c. After transfection of MDA-MB-231 cells with the miR-200c mimic or inhibitor, the expression of miR-200c was significantly increased or decreased when compared with cells transfected with the miR-200c mimic NC or inhibitor NC. Moreover, the expression of HMGB1 was reversely correlated with that of miR-200c in transfected cells. Tranwell assay showed that the number of invasive cells was significantly reduced in miR-200c mimic group when compared with miR-200c inhibitor group. It was also found that the migrating ability of cells transfected with miR-200c mimics was much lower than that of cells transfected with miR-200c inhibitors. It was suggested that miR-200c can suppress the invasion and migration of breast cancer cells by regulating the expression of HMGB1. miR-200c and HMGB1 may become useful biomarkers for progression of breast cancer and targets of gene therapy.

The present study was undertaken to observe the effect of exogenously administered melatonin on the intensity of β-endorphin (β-Ep) immunoreactivity of the neuron in the arcuate nucleus of rat hypothalamus with an aim to explore the possible mechanisms of the analgesic effect of melatonin. The experimental rats were divided into two groups, one injected intraperitoneally with melatonin (110 mg/kg) and the other with only a vehicle. One hour after injection, the brain was processed for coronal sections, which were stained with immunohistochemical ABC technique. The integral optical density (IOD) and mean optical density (OD) of the stained sections were measured with a computer-assisted image-processing and analytical system. β-Ep immunoreactivity was much decreased in the sections treated with melatonin and the IOD and OD were also decreased significantly (P<0.01; P<0.05). The above results suggest that melatonin may result in a decrease of β-Ep content in the arcuate nucleus, as a result of increased β-Ep release induced by administration of melatonin. It is likely that the analgesic effect of melatonin may be in part mediated by the release of β-endorphin from the arcuate nucleus.

To reduce the serum clearance of interferon alpha2b, a chimeric gene encoding an human serum albumin(HSA)--human interferon alpha2b(IFNalpha2b) fusion protein was overexpressed in Pichia pastoris. After fermentation in a 5L bioreactor, the fusion protein, capable of cross-reacting with anti-IFN alpha and anti-HSA antibody, was purified from the culture of the recombinant yeast by ultrafiltration, blue Sepharose affinity, phenyl hydrophobic interaction and Q ion exchange chromatography. Its IFNa2b moiety exhibits antiviral activity similar to that of recombinant human IFNa2b. In Cynomolgus monkeys model, The fusion protein was detectable in plasma, even 336h after a single does of 90 microg/kg injection intravenously or subcutaneously. The elimination phase half-life of the fusion protein was 101h after intravenous injection and 68.2h after subcutaneous injection. Its Subcutaneous bioavailability was 67.9%. The enhanced pharmacokinetics of interferon a2b fused to human serum albumin suggest its promissing application in clinic medicine.
Animals ; Bioreactors ; microbiology ; Fermentation ; Humans ; Interferon-alpha ; biosynthesis ; genetics ; Macaca fascicularis ; Pichia ; genetics ; metabolism ; Recombinant Fusion Proteins ; biosynthesis ; genetics ; pharmacokinetics ; Recombinant Proteins ; Serum Albumin ; biosynthesis ; genetics

OBJECTIVETo study the clinical features and proper treatment of 38 elderly patients with early double primary cancers.

METHODSThirty-eight elderly patients with early double primary cancers treated from January 1980 to March 2003 were retrospectively reviewed for involved organs, treatment and prognosis.

RESULTSDigestive tract was the most frequently involved, followed by urogenital system and lung. Long-term results of endoscopic mucosal resection (EMR), operation and radiotherapy were superior to other methods. The prognosis of gastrointestinal carcinoma was better than that of prostate carcinoma and hematopoietic system. The operation rate decreased with increasing age. The 5-year survival rates of EMR, operation and radiotherapy were 85.7%, 71.1% and 75.0%, respectively. The medium survival time was 120 months in first cancer and 39 months in the second primary cancer. The 5-year survival rates of the first cancer and second primary cancer were 88.6% and 53.8%.

CONCLUSIONYearly follow-up for elderly patients with endoscopy, beta ultrasonic scan and X-ray contribute to finding of early double primary cancers. Operation is the best treatment of early double primary cancers. Endoscopic mucosal resection is especially suitable for old patients with digestive tract and bladder cancer.

Aged ; Aged, 80 and over ; Colorectal Neoplasms ; diagnosis ; radiotherapy ; surgery ; Endoscopy, Digestive System ; Female ; Follow-Up Studies ; Humans ; Lung Neoplasms ; radiotherapy ; surgery ; Male ; Middle Aged ; Neoplasms, Multiple Primary ; Prostatic Neoplasms ; radiotherapy ; surgery ; Retrospective Studies ; Stomach Neoplasms ; radiotherapy ; surgery ; Survival Rate

Objective:To investigate the status quo of professional identity of nursing undergraduates in Beijing and analyze its influencing factors and to provide basis for carrying out professional identity education of nursing undergraduates.Methods:Using the convenient sampling method, a total of 726 nursing undergraduates from four undergraduate colleges in Beijing from June to September 2020 were selected as research objects. General information questionnaire, Professional Identity Questionnaire for Nurse Students (PIQNS) and Professional Self-efficacy Questionnaire for Nurse Students (PSQNS) were used to investigate them. A total of 726 questionnaires were distributed and 615 valid questionnaires were recovered.Results:The total scores of PIQNS and PSQNS among 615 nursing undergraduates in Beijing were respectively 55.00 (36.00, 66.00) and 86.00 (60.00, 101.00) . There was a positive correlation between PIQNS total score and PSQNS total score of nursing undergraduates ( r=0.928, P<0.01) . The results of multiple linear regression analysis showed that gender, whether there was a class tenure, whether he was an only child, reasons for attending nursing major and whether he had clinical practice or internship experience were the influencing factors of professional identity of nursing undergraduates in Beijing ( P<0.01) , which could explain 17.6% of the total variation. Conclusions:The professional identity of nursing undergraduates in Beijing is at the medium level and still needs to be improved. Nursing educators should pay attention to the emotional and psychological status of nursing undergraduates and take appropriate measures to provide vocational education for nursing undergraduates, so as to further improve their professional identity.