Aim To explore the concentration range of organic solvent which can both effectively increase solubility of the difficult soluble medicine monomer, and have low toxicity to cells, and to clarify the influence of different concentration of ethanol on curcumol efficacy.Methods Different DMSO and ethanol concentrations were diluted in culture medium and incubated with cells A549, NCI-H460, NCI-H1299, NCI-1650, LTEP-a2 and SPC-A1 for 12 h, 24 h, or 48 h, cell viability was tested by a colorimetric assay with 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide(MTT), and different concentrations of ethanol with/without different concentrations of curcumol were also prepared with culture medium, then incubate with A549 and NCI-H460 cells for 24 h, and cell viability was tested by MTT as well.Results Within 48 h the solution with 0.008(V/V) DMSO or less had no significant effect on the cell A549 compared with control group, for NCI-H1650 the concentration was 0.004(V/V) or less, for NCI-H460 the result turned to be 0.002(V/V) or less, and the solution with DMSO below 0.001(V/V) had significant effect on the three other cells, NCI-H1299, LTEP-a2 and SPC-A1.While within 48 h, the liquor with 0.004(V/V) ethanol or less did not exhibit significant cytotoxic effect on the cell A549, for NCI-H460 and NCI-H1650 the result of ethanol concentration became 0.002(V/V) or less, for NCI-H1299 the data was 0.001(V/V) or less, and the liquor with ethanol below 0.001(V/V) showed significant cytotoxic effect on LTEP-a2and SPC-A1.When the proportion of ethanol in solution was below 0.01, it has no cytotoxic on cell A549 and NCI-H460, and the curcumol solution prepared with this kind of ethanol solution only represented the efficacy of curcumol on the cells.Since the solution with 0.01(V/V) ethanol dissolved the curcumol better, the cell viability changed from about 100% to about 35%.Conclusions Different organic solvent expressed different toxicity to the same cell, and the sensitivity of different cells to one organic solvent is dissimilar.and DMSO could be the optimum solvent for A549 and NCI-H1650, while the optimum solvent of NCI-H1299 is ethanol, for NCI-H460 it could be both and DMSO and ethanol, and DMSO and ethanol is not suitable for LETP-a2, SPC-A1 to be solvent.

Objective To investigate the effects of hydrogen sulfide on autophagy and the apoptosis after acute spinal cord injury in rats. Methods Thirty-six adult male SD rats (250-300 g) were randomly divided into three groups (n=12 for each group):sham operation group (Sham group), spinal cord injury group (Model group) and hydrogen sulfide pre-treatment group (H2S group). Allen’s method was used to establish the rat model of spinal cord injury. Rats of sham operation group re?ceived only laminectomy. Rats of H2S group received sodium hydrosulphide injection intraperitoneally (50μmol/kg) 1h after spinal cord injury, and Model group was given the same amount of saline solution. Rats in the three groups were sacrificed 24 h after spinal cord injury, then the spinal cord was removed. The expressions of LC3, p70S6K and Cleaved caspase-3 were detected by Western blot assay. The expression of LC3 was also detected by immunofluorescence. The cell apoptosis was as?sessed by TUNEL stain. Results Compared with Sham group, the expression levels of LC3Ⅱ/LC3Ⅰand Cleaved caspase-3 were increased in Model group, but the expression of p70S6K decreased and cell apoptosis increased in Model group (P<0.01). Compared with Model group, the expression levels of LC3Ⅱ/LC3Ⅰand Cleaved caspase-3 were decreased significant?ly, while the expression of p70S6K increased and cell apoptosis decreased significantly in H2S group (P < 0.01). Conclu?sion Hydrogen sulfide can inhibit autophagy and reduce cell apoptosis after acute spinal cord injury in rats.

Objective:To analyze the causes and epidemiological characteristics of an outbreak of brucellosis in Haidong City Qinghai Province, and provide a scientific basis for prevention and control of brucellosis.Methods:Using the retrospective research method, the epidemic data on brucellosis, field case investigations, serological test results in Haidong City, Qinghai Province in 2019 were collected from the "China Disease Prevention and Control Information System", and the above data were analyzed by descriptive epidemiological analysis.Results:There were 3 confirmed brucellosis patients, who were breeders of the farm; 1 case of latent infection was found in key population, who was villager from the same village as the confirmed patients; 4 people had a history of close contact with infected sheep. A total of 110 sheep serum and 7 bovine serum samples were collected in the animal breeding area, of which 26 were positive, all were sheep serum; 568 sheep serum and 17 bovine serum samples in the same village were negative.Conclusions:The key occupational groups contacted with infected sheep without protection is the main cause of this epidemic. Health education on brucellosis prevention and control should be vigorously carried out to improve the awareness of the people to prevent the disease; the monitoring of animal brucellosis by relevant departments should be strengthened to effectively control the spread of animal brucellosis, and prevent the occurrence of human brucellosis.

Objective:Combined with the actual work requirements of brucellosis in Qinghai Province, to design a management information system for brucellosis patients, in order to realize the information of diagnosis and treatment of brucellosis patients.Methods:Based on the theory of management information system, according to the functional requirements of the actual work and performance parameters, the general framework of management information system was designed, the establishment of the management information system was gradually completed, and the system was improved through the system testing.Results:The system was easy to use and easy to operate, and patient's detailed information, diagnosis and treatment results and treatment plan could be obtained quickly. At the same time, follow-up, trace investigation, and brucellosis prevention and treatment propaganda could be carried out.Conclusions:The established brucellosis management information system can realize the electronic management of patient information, master the disease development and diagnosis and treatment results of brucellosis patients. Through follow-up investigation, the system can increase active screening and early warning of suspected cases, and provide health education to realize early diagnosis and early treatment of the patients.

OBJECTIVETo analyze and evaluate the clinical efficacy of heat-sensitive moxibustion for symptoms of large intestine cancer.

METHODSSixty patients with large intestine cancer were randomly divided into an observation group and a control group, 30 cases in each one. FOLFOX chemotherapy regimen was used in the two groups,and heat-sensitive moxibustion was added in the observation group. The acupoints were Zusanli(ST 36), Sanyinjiao (SP 6) Xuehai (SP 10) and Geshu (BL 17), etc. The treatment was applied once a day,five-day treatment as one course. Four courses were required. The reaction rates of uncomfortable symptoms by the Chinese version of the M. D. Anderson symptom inventory (MDASI-C) scale and clinical effects were analyzed and evaluated in the two groups.

RESULTSAfter treatment, the MDASI-C reaction rate of uncomfortable symptoms in the observation group was 50.4% which was lower than 53.3% in the control group (P < 0.05). The total effective rate of symptom improvement in the observation group was 83.3% (25/30), which was higher than 60.0% (18/30) in the control group (P < 0.05).

CONCLUSIONHeat-sensitive moxibustion can improve symptoms of chemotherapy for large intestine cancer.

Aged ; Antineoplastic Agents ; adverse effects ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Colorectal Neoplasms ; drug therapy ; Drug-Related Side Effects and Adverse Reactions ; etiology ; therapy ; Female ; Fluorouracil ; adverse effects ; therapeutic use ; Humans ; Intestine, Large ; drug effects ; Leucovorin ; adverse effects ; therapeutic use ; Male ; Middle Aged ; Moxibustion ; instrumentation ; Organoplatinum Compounds ; adverse effects ; therapeutic use ; Treatment Outcome

On the basis of analysis of the current status and future tendency of development of the health services industry in Shanghai,the authors identified key problems and bottlenecks.Thus they made clear the target positioning and principles of the industry,and proposed the basic ideas and pattern of the industry in the 13 th five-year plan period,focusing on such fields as private and high-end healthcare services,traditional Chinese medicine services,public health services,commercial health insurance,and other related industries.In the end,corresponding supporting polices were proposed.

Objective To study the effect of Exendin-4 on oxidative stress and neural apoptosis following spinal cord injury (SCI). Methods Adult male SD rats, with weight between 200-250 g, were randomly divided into three groups (12 in each group):Sham group, SCI group and Exendin-4 group (Ex-4 group). Rats in Sham group achieved spinal cord exposure. SCI group and Ex-4 group were induced according to Allen′s test (using a weight-drop device). Rats in Ex-4 group were ad?ministrated with Exendin-4 (10 μg/rat) through intraperitoneal injection immediately after establishment of SCI models. Rats in Sham group and SCI group were given the same volume of normal saline solution instead. Level of malondialdehyde (MDA) and the activity of catalase (CAT) were assessed in spinal cord tissues 24 hour after drug administrations. Neural apoptosis was detected by TUNEL staining and the expression levels of caspase-9 and AIF were determined using Western blot. Results Compared with Sham group, the levels of MDA, caspase-9 and AIF as well as neuronal apoptosis rate in?creased obviously, while activity of CAT decreased markedly in SCI group(P<0.01). Compared with SCI group, the levels of MDA, caspase-9 and AIF as well as the neuronal apoptosis rate decreased obviously, while activity of CAT increased re?markably in Exendin-4 group(P < 0.01). Conclusion Exendin-4 restrain neural apoptosis following spinal cord injury through relieving oxidative damage.

Objective To investigate the effects of edaravone (EDA) on cell apoptosis induced by endoplasmic reticu?lum stress (ESR) after spinal cord injury (SCI) in rats. Methods Thirty-six healthy adult SD rats were randomly divided in?to three groups (12 rats for each group):Sham group, SCI group and EDA group. The rat model of SCI was made by Allen’s method and the sham group was only received laminectomy and kept the spinal cord intact. Rats in sham group and SCI group accepted the same volume and frequency of saline injection as EDA group. The EDA group was given 10 mg/kg EDA once every 12 h intraperitoneally. Three days after injuring, the spinal cords were harvested, and the protein levels of C/EBP homologous protein (CHOP), Cleaved caspase-12 and Cleaved caspase-3 were detected by Western blot assay. Immunofluo?rescence staining was used to analyze the positive ratio of caspase-12 and CHOP in spinal cord of three groups. Meanwhile, TUNEL staining was used to identify cell apoptosis of spinal cord. Results Compared with sham group, the protein levels of CHOP, Cleaved caspase-12 and Cleaved caspase-3 were obviously higher in SCI group (P<0.01);the proportion of Cas?pase-12 and CHOP positive cells was significantly increased (P<0.01), and the apoptotic rates were also significantly in?creased in spinal cord (P<0.01). However, compared with SCI group, the protein levels of CHOP , Cleaved caspase-12 and Cleaved caspase-3 were significantly decreased in EDA group (P<0.01);the proportion of Caspase-12 and CHOP positive cells was significantly reduced (P<0.01), and the apoptotic rates were also significantly decreased in spinal cord (P<0.01). Conclusion EDA has neuroprotective potential to spinal cord injury. The mechanism of its neuroprotective effect may asso?ciate with its inhibitory effect to the cell apoptosis induced by endoplasmic reticulum stress after SCI.

Based on the experience of Public-Private Partnership (PPPs) model in domestic and foreign medical field, this study innovatively explored and designed the Build-Transfer-Operate-Transfer (BTOT) operational structure taking the second phase project of ZP Hospital in Pudong New District as a case study.The exploration results showed that the model established the social capital of private non-profit medical institutions by setting up the project company, and used the asset rental and operating management fees in the form of return path.In view of this, the study put forward some relevant countermeasures and suggestions from the aspects of the institution nature and national treatment, property right ownership and risk mitigation, balancing of interests and the cooperation period and solving the core staff etc.All of these measures were taken in order to explore the replicable PPP model in the field of public hospital reform and development.

Objective To compare the vascularization of collagen scaffolds with or without growth factors and their efficacy on cardiac function in postinfarcted rats underwent surgical ventricular restoration.Methods Collagen scaffolds were activated with 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride chemistry (EDC) as control or continually covalently immobilized with vascular endothelial growth factor (VEGF) and VEGF + basic fibrohlast growth factor (bFGF) as experimental groups.Adult SD male rats underwent left anterior descending artery (LAD) ligation to generate transmural myocardial infarction(MI).Four weeks later,by echocardiography,rats with moderate scar size(25％-35％ akinetic area of freedom wall of left ventricle) were screened out,assigned into 3 groups randomly and received the surgical ventricular restocation (SVR).Then,cardiac function was measured by echocardiography at 1w,2w and 4w after patch implantation.At endpoint of study (4w after patch implantation),the rats were sacrificed and the hearts were harvested.Vascularization of patch were determined by capillary density (evidenced by vWFⅧ staining) or mature vessel density (evidenced by SMA staining) respectively.Results The general mortality of the animal model is 15％ (6/40).A significant improvement of cardiac function was observed in all animals at 1 w after patch implantation but that was better preserved in both cytokine-conjugated groups 4w later (control group vs.VEGF group,P ＜ 0.05,control group vs.VEGF + bFGF group,P ＜ 0.01).More capillaries were present in patch with growth factors (P ＜0.05),while significant functional vessel formation was observed only in VEGF + bFGF group (P ＜0.01 vs.control or VEGF group).Additionally,we identified a positive correlation between heart function and mature vessel density (P =0.0297,r2 =0.998).Conclusion The mechanical property of collagen scaffold can be effectively improved by EDC,the growth factors immobilized in scaffold were in favor of vascularization of patch,which may facilitate the preservation of cardiac function posterior to SVR.