OBJECTIVE: To investigate the effect of the 80% ethanol elution part of Tinospora sinensis macroporous resin extract on the expression of hippocampus proteome in Alzheimer′s disease (AD) model rats induced by D-galactose combined with Aβ2535. METHODS: The AD rats model replicated by D-galactose combined with Aβ2535, The AD rat model was replicated by D-galactose combined with Aβ2535, and randomly divided into sham operation group, model group, Donepezil group (donepezil, 6.0 mg•kg-1), and 80% extraction of Tinospora sinensi group (crude drug 6 g•kg-1). Donepezil group: donepezil 0.1 mL•10 g-1 ig. 80% extraction of Tinospora sinensi group: Tinospora sinensis effective part extraction 0.1 mL•10 g-1 ig. Model group and sham-operation group: physiological saline 0.1 mL•10 g-1 ig. Once a day, continuous administration for 15 d. Separating the hippocampus and extracting the protein, take the system test with nanol-ESI liquid-mass spectrometry, protein discovery software was used for identification, and qualitative analysis different groups of hippocampal proteins by SIEVE software. Take the GO analysis on differential protein with the ANTHER classification system and use IPAD to enrich the pathway. RESULTS: Compared with the model group, the drug-administered group had 66 differential proteins, including tubulin, heat shock proteins, energy metabolism-related proteins, vesicle production/transport related proteins, and brain protection-related proteins, which are closely related to AD. The above differential proteins involve a total of 21 signaling pathways. CONCLUSION: Tinospora sinensis may promote the synthesis and release of neurotransmitters by up-regulating clathrin and vesicle-forming transport and neurotransmitter release, and improve the function of cholinergic function in the brain to achieve the pathological process of AD.

As a basic amino acid, histidine has a pK_a close to the acidity of the tumor microenvironment, thus the charge and solubility of histidine are able to vary as the pH changes. Under a neutral environment, histidine is not charged and exhibits hydrophobic properties, while it can be protonated and becomes hydrophilic when exposed to mildly acidic pH, such as tumor microenvironment. Therefore, histidine is widely used in the design of drug delivery systems to target the mildly acidic pH of tumor microenvironment. This article reviews the recent progresses of histidine-based tumor-targeting drug delivery systems, and summarizes the principles on promoting internalization and tuning drug release by taking advantage of histidine. Finally, we point out the common issues on histidine application and illustrate its future prospects.

Objective To investigate the cardiovascular risk factors in perimenopausal women and evaluate the risk for cardiovascular disease. Methods A total of 692 perimenopausal women permanent residents in a community of Zhengzhou from September, 2014 to May, 2015 were selected using multi-stage random sampling. Their age, blood pressure, body weight, smoking history, history of diabetes and fast-ing blood glucose, blood lipid and other information were collected. They were assessed with The National 10-Year Risk Assessment for Ischemic Cardiovascular Disease (ICVD). Results Prevalence of the cardiovascular risk factors screened for were as follow:hypertension 14.3%, dyslipidemia 32.1%, overweight or obesity 59.2%, type 2 diabetes mellitus 7.9%, smoking 0.6%. The absolute risk for ICVD in the next 10 years averaged as (2.01 ± 3.04)%, and increased with age. The incidence of high blood pressure, high total cholesterol, smoking, as well as the level of risk for ICVD were different among various age groups. Conclusion The cardiovascular factors are not controlled ideal-ly in the perimenopausal women, and result in high risk of cardiovascular disease, which need a set of intervention as their risk stratification.

Objective To explore the association between body mass index and blood pressure , blood glucose, blood lipids and the 10-year risk of ischemic cardiovascular disease (ICVD) among the middle-aged population and to provide theoretical evidence to prevent cardiovascular disease among overweight and obese mid-dle-aged population in the community. Methods A total of 1,628 middle-aged residents having health examina-tions in Hangdong and Nanguan Community Health Service Center in Guancheng District of Zhenghzou City from September 2014 to September 2015 were selected as subjects and were divided into three groups: normal group , overweight group, and obesity group according the size of the body mass index. The relationship among BMI , blood pressure, blood glucose, blood lipids and the 10-year risk of ICVD was explored. Results The preva-lence of overweight and obesity in the population was 47.97% and 15.72% respectively. There was significant dif-ference in body mass index , systolic blood pressure , fasting blood glucose , blood lipids and the distribution of the 10-year risk for ICVD (all P < 0.05). The incidence of hypertension, hyperglycosemia and hyperlipidemia increased with the increase of BMI (all P < 0.05). Multivariate logistic regression analysis showed that over-weight and obesity were independent risk factors of hypertension , hyperglycosemia and hyperlipidemia (OR =2.144, 1.911, 2.028). Conclusions The prevalence of overweight and obesity among middle-aged population is high in Guancheng District of Zhengzhou City. Overweight and obesity co-exit with other cardiovascular risk factors. Normal BMI is important to reduce the level of risk for CVD and the 10-year risk of ICVD.

Objective To investigate the safety and efficacy on early treatment of large pancreatic pseudocyst by endoscopic ultrasound (EUS)-guided transgastric drainage. Methods The clinical data of 23 cases of large pancreatic pseudocyst treated with EUS-guided transgastric drainage from 2003 to 2008 was retrospectively analyzed. Results All were of single pseudocyst. Pseudocyst was present in the head of the pancreas in 3 cases, in the body of the pancreas in 11 cases, in the tail of the pancreas in 9 cases. Mean diameter of pancreatic pseudocysts was 11 cm( range 8 - 18 cm ). The interval between the finding of pseudocysts and EUS-guided transgastric drainage ranged 17 -65 d, averaging 31 d. Two had postoperative infection of the pseudocyst, one received percutaneons external drainage and the other one received surgical internal drainage. Three had postoperative gastrointestinal bleeding and were treated with antacid and hemostatic drugs. Patients were examined by CT two to three months later. Pancreatic pseudocysts disappeared completely in 6 cases and significantly shrank in the rest. The clinical symptoms of all patients,such as abdominal pain, abdominal bloating were significantly relieved. All patients were followed-up for 1 year, there was no pseudocyst recurrence, ulcer,bleeding or infection. Conclusions Early treatment of large pancreatic pseudocyst by EUS-guided transgastric drainage is safe and effective.

Objective To study the effect of curcumin on rat model of N-methylnitrosourea ( MNU) -induced bladder cancer and its mechanism. Methods One hundred SD rats were randomly divided into four groups:control group (n=10), model group (n=10), intervention group (n=40) and treatment group (n=40). Rats in the control group re-ceived intravesical infusion of distilled water. Rats in the other three groups were given MNU (1 mg/mL) in 2 mL saline at 2nd, 4th, 6th and 8th weeks to induce bladder cancer. In the model group, the rats were injected with distilled water in the bladder. The rats in the intervention group received 2 mL curcumin solution (400 μmol/L) at the 1st, 3rd, 5th, 7th and 9th weeks, and were sacrificed at the 11th week. In the model group, the rats were injected with distilled water in the bladder. In the treatment group, the rats had intravesical instillation of curcumin in the bladder (400 μmol/L, 2 mL) at 10, 12, 14, 16, and 18 weeks, and sacrificed at the 19th week. Bladder tissue samples were taken for pathological exami-nation using hematoxylin and eosin ( HE) staining. TUNEL staining assay was used to detect the apoptosis in tumor tissue. The expression of apoptosis-related proteins was detected by Western blot. Results The incidence of bladder cancer was 90% (9/10) in the model group, 12. 5% (5/40) in the intervention group and 92. 5% (37/40) in the treatment group at the 10th week, showing a significant difference between the intervention group and model group (P<0. 05), indicating an obvious interventional effect of curcumin on the bladder cancer. The incidence rate of bladder cancer in the treatment group was 78. 4% (30/37) at the 19th week, and compared with the 10th week before treatment, showing that curcumin can de-lay the recurrence of bladder cancer. TUNEL staining assay confirmed that curcumin significantly promoted the apoptosis in bladder cancer cells and inhibited their proliferation. The Western blot analysis showed that curcumin inhibited the activa-tion of NF-κB and effectively down-regulated the expression of NF-κB-regulated gene product. Conclusions Curcumin has a significant interventional effect on MNU-induced bladder cancer in the rat models. The mechanism may be through inhibi-tion of NF-κB activation and effective down-regulated NF-κB regulation of the gene products, and to regulate the expression of related proteins in bladder cancer, i. e. , inhibition of proliferation, induction of apoptosis, and further play a role of an-ti-cancer intervention and prevention of bladder cancer recurrence.

Objective To investigate the effect of bacillus Calmette-Guérin(BCG)on bladder cancer cells and their metabolites, and to preliminarily explore the possible mechanisms of BCG in the treatment of bladder cancer. Methods The rat model of bladder cancer was induced by intravesical instillation with N-methylnitrosourea(MNU). Bladder cancer cells and normal transitional epithelial cells were isolated and primarily cultured, and were divided into 5 groups according to the different components of the culture medium. The concentration of tumor necrosis factor-α(TNF-α) and interleukin-10(IL-10)in the supernatant of each group was detected by enzyme linked immunosorbent assay (ELISA). The concentration of BCG to inhibit the cancer cell growth was determined by MTT assay. Apoptosis of bladder cancer cells was detected by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling(TUNEL). Results Among the 15 rats,2 rats died after 2 times of instillation, and 3 rats died after 3 times of instillation, without obvious tumors found at autopsy. The other 10 rats were killed after completion of the intravesically instillation of MNU, and obvious tumors were found in 8 of them after dissection. The results of MTT assay showed that BCG had an inhibitory effect on the growth of bladder cancer cells,and the inhibitory rate was positively correlated with the concentration of BCG. The results of ELISA showed that the concentrations of TNF-α in the supernatant of groups B and D were(160.654 ± 5.775) ng/L and(124.443 ± 4.972)ng/L, respectively, with significant differences from those of the other three groups. The concentrations of IL-10 in the groups B and E were(16.973 ± 3.428)ng/L and(20.327 ± 2.721)ng/L, significantly higher than those of the other three groups. Apoptosis of cancer cells was not found in all groups. HE staining of the primary bladder cancer cells showed that the volume of cell nucleus was increased, and the nucleo-cytoplasmic ratio was increased. The number of nucleoli in some cells was increased and some nuclei appeared like ink drops with prominent nucleoli. Conclusions BCG has an inhibitory effect on the growth of rat bladder cancer cells. IL-10 and TNF-α secreted by the tumor cells might be involved in this regulatory process. However,apoptosis does not show an obvious effect on this inhibitory process.

Objective:To observe the effect of Yi Jin Jing(Sinew-transforming Qigong Exercises)intervention on anxiety in asymptomatic patients with Corona Virus Disease 2019(COVID-19)infection during quarantine.Methods:A total of 160 asymptomatic patients with COVID-19 infection were stratified by gender and divided into an observation group and a control group by the stratified randomization method,with 80 cases in each group.The control group was given basic nursing in the cabin,and the observation group was given additional Yi Jin Jing exercises once a day,20 min each time,and trained continuously until 1 d before leaving the cabin.The Hamilton anxiety scale(HAMA)score was compared between the two groups.Results:A total of 154 cases were included for data analysis in this study,including 74 cases in the observation group and 80 cases in the control group.After intervention,the HAMA scores in both groups increased(P<0.05),while the score in the observation group was lower than that in the control group(P<0.05).In the control group,the HAMA score of females after intervention was higher than that of males.The scores of mental anxiety and somatic anxiety in both groups were higher than those before intervention,while the score of mental anxiety in the observation group was significantly lower than that in the control(P<0.05).However,there was no statistical difference in the somatic score between the two groups(P>0.05).Conclusion:Patients with COVID-19 infection will get anxious during quarantine.Yi Jin Jing exercise can effectively reduce the aggravation of anxiety in asymptomatic patients with COVID-19 infection during concentrated quarantine.

OBJECTIVETo explore the alterations of apoptosis factor Bcl-2/Bax in the early Parkinson's disease (PD) rats and the protective effect of scorpion venom derived bioactive peptide.

METHODSHealthy male SD rats (180-220 g) were randomly divided into 4 groups (n = 10): early PD model group, sham operation group, scorpion venom derived bioactive peptide control group, scorpion venom derived bioactive peptide therapy group. 6-hydroxydopamine (6-OHDA) was used to prepare the early PD rat model. The immunohistochemistry was used to detect the expression of Bax and Bcl-2 and further explore the mechanism of anti-apoptosis regarding the neuroprotective effect of scorpion venom derived bioactive peptide.

RESULTSThe results indicated that compared with the control rats, the immunostaining of Bax in the brain increased significantly while that of Bcl-2 decreased significantly in the lesion side of 6-OHDA treated rats. Interestingly, scorpion venom derived bioactive peptide could attenuate the above abnormal changes.

CONCLUSIONUp-regulation of Bax and down-regulation of Bcl-2 could participate in the early stage of PD and the anti-apoptotic mechanism could be involved in the neuroprotective effect exerted by scorpion venom derived activity peptide regarding the dopaminergic neuron in the early stage.

Animals ; Apoptosis ; Disease Models, Animal ; Down-Regulation ; Male ; Neuroprotective Agents ; chemistry ; Oxidopamine ; Parkinson Disease ; metabolism ; Peptides ; chemistry ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Rats ; Rats, Sprague-Dawley ; Scorpion Venoms ; chemistry ; Up-Regulation ; bcl-2-Associated X Protein ; metabolism

The presence of large segmental defects of the diaphyseal bone is challenging for orthopedic surgeons. Free vascularized fibular grafting (FVFG) is considered to be a reliable reconstructive procedure. Stress fractures are a common complication following this surgery, and hypertrophy is the main physiological change of the grafted fibula. The exact mechanism of hypertrophy is not completely known. To the best of our knowledge, no studies have examined the possible relationship between stress fractures and hypertrophy. We herein report three cases of patients underwent FVFG. Two of them developed stress fractures and significant hypertrophy, while the remaining patient developed neither stress fractures nor significant hypertrophy. This phenomenon indicates that a relationship may exist between stress fractures and hypertrophy of the grafted fibula, specifically, that the presence of a stress fracture may initiate the process of hypertrophy.
Adult ; Female ; Fibula ; pathology ; transplantation ; Fractures, Stress ; pathology ; Humans ; Hypertrophy ; Male ; Middle Aged ; Tibia ; surgery ; Tibial Fractures ; surgery