Pseudorabies (PR) is an infectious disease caused by the pseudorabies virus (PRV), affecting various domesticated and wild animals. Since pigs are the only natural hosts of PRV, PR poses a serious threat to the pig farming industry. Currently, PR is primarily prevented through vaccination with inactivated vaccines or genetically modified attenuated live vaccines. Developing safe and effective genetically engineered vaccines would facilitate the eradication and control of PR. In this study, the PRV vaccine strain Bartha-K61 was used as the reference strain. The gB protein was expressed via the baculovirus-insect cell expression system. Non-denaturing gel electrophoresis confirmed that the gB protein could form a trimeric structure. The purified gB protein was used to immunize mice, and the immune effect was evaluated by a challenge test. The results showed that the gB antigen induced a strong immune response in mice, with the serum-neutralizing antibody titer above 1:70. The lymphocyte stimulation index reached more than 1.29, and the level of (interferon gamma, IFN-γ) release was higher than 100 pg/mL. After immunization, mice were challenged with the virus at a dose of 10⁴ TCID₅₀/mL, 200 μL per mouse, and the clinical protection rate was 100%. Immunohistochemistry, histopathological section, and tissue viral load results showed that the pathological damage and viral load in the gB-immunized group were significantly lower than those in the PBS group. In summary, the gB protein obtained in this study induced strong humoral and cellular immune responses in mice, laying a foundation for developing a recombinant gB protein subunit vaccine.
Animals ; Mice ; Baculoviridae/metabolism* ; Viral Envelope Proteins/biosynthesis* ; Herpesvirus 1, Suid/genetics* ; Pseudorabies/immunology* ; Swine ; Pseudorabies Vaccines/genetics* ; Antibodies, Viral/blood* ; Insecta/cytology* ; Mice, Inbred BALB C ; Female ; Viral Vaccines/immunology*

【Objective】 To explore and evaluate the application of blood intelligent management platform (scheme) based on the Internet of Things(IoT)in the clinical blood management for hospitals. 【Methods】 Based on radio frequency identification technology (RFID), smart blood refrigerators, IoT blood shipping containers, automated blood bank systems, smart blood management software, etc. were developed and integrated as an IoT blood intelligent management platform (scheme). The blood storage, management software and hardware systems were organically combined, and the blood storage equipment was moved forward to the clinical departments to solve the concerns of clinicians. 【Results】 The in-depth integration of IoT technology, RFID and refrigeration technology has built an RFID-based IoT blood management solution, which integrates blood storage, transfusion, and quality control management, also realizes the entire process of supervision and traceability of clinical blood transfusion. The forward movement of blood bank to the clinical departments and the implementation of electronic cross-matching streamlined and optimized the clinical blood flow. The waiting time of patient′s for blood transfusion was shortened from (40±10) min to less than 2 min. The whole process of cold chain logistics ensured the storage quality of blood products issued, so that the clinical departments can return the untransfused blood and Blood Transfusion Department can reissue it to other hospitals. 【Conclusion】 IoT blood intelligent management based on RFID realizes the intelligent management of clinical blood transfusion and blood information traceability. The forward movement of blood bank to the clinical departments improves the efficiency of clinical blood transfusion, avoids the waste of blood source, and ensures the safety of blood transfusion. It is worth promoting in the whole process of blood transfusion.

Objective To make clear the arsenic distribution in drinking water sources in Hubei Province, make provincial distribution map of high-arsenic water and provide scientific basis for formulating refined measures to prevent and control arsenic poisoning of drinking water type in Hubei Province. Methods In 103 counties of Hubei Province, residents were sampled according to different water supplies (centralized water supply, small centralized water supply in rural areas and decentralized water supply). One water sample was collected from source water and tap water in centralized water supply system and at least 3 samples were collected from decentralized water supply system in a village. Water iodine content was tested using atomic fluorescence spectrometry and a distribution map of high-arsenic water at county level was drawn using ArcGIS 10.2. Results Totally 38 292 water samples were collected. The water-arsenic-concentration median was less than 1.00 μg/L. The high-arsenic water detection rate in urban centralized water supply was 3.7%(80/2 176);which were all 0.1%(4/4 304,30/31 812) in small centralized water supply in rural areas and decentralized water supply. The high-arsenic water sources from centralized water supplies were distributed centrally in the south, the central and the east of Hubei Province and those from dispersed water supplies were distributed dispersedly in the south, the central and the east of Hubei Province.Conclusions There are still some dispersed water supplies with very high arsenic concentration in Hubei Province, which should be included to change the water area as soon as possible. Moreover, high arsenic water samples are found from centralized water supplies, which means the water treatment process should be upgraded or water resources should be changed.

Objective To make clear the fluorine content distribution in drinking water of residents in Hubei Province,draw a provincial distribution map of high-fluorine water and provide scientific basis for formulating refined prevention and control measures of drinking water type fluorosis in Hubei Province.Methods In 116 counties of Hubei Province,including development zones,scenic zones and farmlands,drinking water of residents was sampled according to different water supplies (centralized water supply,small centralized water supply in rual areas and decentralized water supply) from 2013 to 2015.For a centralized water supply,one sample was collected from the source water and the tap water each and at least 3 samples were collected for decentralized water supply in a village.Selective electrode method was used to detect the water fluorine content and ArcGIS 10.2 was used to draw distribution map of high-fluorine water at county level.Results A total of 38 284 water samples were collected,the median of fluorine content was 0.21 mg/L.The highest detective rate of all types of water supply with high fluorine content was pressure water well (64/100,64.0％) and high-fluorine water sample was not found in the reservoir.The high-fluorine water sources from centralized water supplies were distributed dispersedly in the north-west and the east of Hubei Province and those from decentralized water supplies were distributed dispersedly in the middle-north and the east of Hubei Province.Conclusions Fluorine concentration in drinking water is generally low.However,there are still some high-fluorine water supplies which should be reported to Hubei Provincial Water Resources Department as soon as possible.Moreover,there is a phenomenon of fluorine rebounce in the water reduction project,and managements of those projects should be strengthened.

Objective To explore value of detecting fetal thymus size with the thymic-thoracic ratio (TT-ratio).Methods Prenatal ultrasonography examinations were performed on totally 317 normal singleton healthy pregnancies from 18 to 39 gestational weeks.The normal thymus of fetus were observed on the three-vessel-trachea (3VT) view.The anteroposterior diameter of the thymus (T1) was measured between the anterior border of the aortic arch and posterior border of sternum.The intrathoracic mediastinal diameter (T2) was measured between the anterior border of thoracic vertebral body and posterior border of sternum.The TT-ratio was then calculated as the ratio of T1 to T2.Scatter plot between TT-ratio and gestational age was drawn.And the Spearman regression analysis was performed.Results The thymus of fetus was shown as an irregular homogenous structure in the anterior mediastinum on the 3VT view.The mean TT-ratio was 0.45± 0.03.There was no correlation between TT-ratio and gestation (rs =0.06,P=0.29).Conclusion Prenatal ultrasound can display the thymus obviously.TT-ratio could be applied to assess the fetal thymus size,which can provides clinical basis for the detection of absent or hypoplastic thymus in fetus.

Objective To explore the effect of prospective nursing on preventing constipation for patients with acute myocardial infarction(AMI). Methods 43 AMI patients during July 2008 and June 2010 in our hospital were classified as the observation group, besides the nursing routine of the acute myocardial infarction plus routine therapy to prevent constipation, prospective nursing was implemented.Through the retrospective analysis of medical record, 41 of AMI in our hospital during March 2006 and June 2008 were classified as the control group, they were given the nursing routine of the acute myocardial infarction plus routine therapy to prevent constipation and the nursing intervention after occurrence of constipation. The defecation condition was assessed for the two groups of patients on admission and the defecation and mortality rate was compared on the eighth day of hospitalization. Results There was significant difference in constipation and mortality rate between the two groups of patients during hospitalization. Conclusions The prospective nursing for AMI patients to prevent constipation can obviously reduce the incidence of constipation, thus to avoid serious complications caused by constipation and reduce mortality.

Objective To discuss the application effect of seamless training model of "demonstration unit" on nursing teaching. Methods 210 nursing students from high professional schools from 2006 to 2009 were set as the experimental group, 210 nursing students of the same education background were selected as the control group. The experimental group adopted seamless training model of "demonstration unit", the control group used traditional segmental teaching mode. Teaching effect was compared between the two groups. Results The theoretic test results, operation and technological testing results and satisfaction degree with the teaching in the experimental group was higher than that of the control group. Conclusions The seamless training model of "demonstration unit" is approved by the patients, teachers and nursing students and improves the quality of clinical teaching. It should be used widely in clinical nursing education.

0.05).There were significant differences between groups A and C(P

OBJECTIVETo investigate the frequency of p16 and p15 gene methylation in multiple myeloma (MM), and its relationship with bone marrow cell apoptosis and clinical outcome.

METHODSTwenty-two patients with MM were studied to detect p16 and p15 gene methylation. Methylation-specific polymerase chain reaction (MSP) was used to detect gene methylation, and terminal transferase-mediated dUTP nick end-labeling (TUNEL) was used to detect cell apoptosis.

RESULTSp16 and/or p15 gene methylatoin was detected in 10 of 22 patients (45.4%). There were 3 patients with p16 gene methylation, 9 patients with p15 gene methylation, and 2 patients with both genes methylation. The incidence of methylation of p15 gene was higher than that of p16 gene (P < 0.05). The patients with p16 and/or p15 gene methylation had a delayed cell apoptosis, poor response to chemotherapy, and a short over-all survival (OS).

CONCLUSIONThe methylation of p16 and/or p15 gene plays a key role in MM apoptosis pathogenesis. The patients with both p16 and p15 gene methylation had a poor prognosis.

Apoptosis ; Cell Cycle Proteins ; Cyclin-Dependent Kinase Inhibitor p15 ; Cyclin-Dependent Kinase Inhibitor p16 ; genetics ; DNA Methylation ; DNA, Neoplasm ; genetics ; Gene Silencing ; Genes, p16 ; Humans ; Multiple Myeloma ; genetics ; pathology ; Prognosis ; Transcription Factors ; genetics ; Tumor Suppressor Proteins

Objective:To discuss the relationship between blood-lipid change and acute cerebrovascular disease (ACVD) and tocompare the blood-lipid levels in the patients with cerebral hemorrhage (CH group) with those in the patients with cerebralinfarction (CI group). Methods:The blood-lipid levels in 300 patients with ACVD (ACVD group) and 100 patients withother system disease (control group) were tested with automatic biochemistry analysor and compared between the twogroups. Results:There were significant differences between ACVD group and control group as well as between CH group andCI group. Conclusion:Although there were blood-lipid metabolic disturbances in both CH and CI patients, their degrees weresignificantly different, which should be closely observed and controlled in clinic.