Analysis of the Levels of Vitamin A, D and E in Peripheral Blood of Children in Zhejiang Province.

BACKGROUND: This study aims to investigate the serum fat-soluble vitamins A, D, and E levels of children in Zhejiang Province, and to provide a reference range of fat-soluble vitamins for children in Zhejiang Province. METHODS: Between May 2019 and December 2019, 871 children who sent peripheral blood samples to Hangzhou Biozon Medical Institute Co., Ltd. for fat-soluble vitamin A, D, and E analysis were selected, including 432 boys and 439 girls. After the peripheral blood was collected, the serum A, D, and E levels were measured, and the differences in age, gender, season, and region were compared. RESULTS: With age, the level of vitamin A gradually increased (p < 0.01), and vitamin D2, D3, and total vitamin D all increased first and then decreased. Vitamin A (131.79 ± 47.05 ng/mL vs. 121.96 ± 41.01 ng/mL) and E (5.87 ± 2.23 µg/mL vs. 5.56 ± 2.13 µg/mL) levels of girls were higher than boys (p < 0.01), and vitamin D3 (15.25 ± 6.16 ng/mL vs.15.17 ± 7.26 ng/mL) and total vitamin D (18.09 ± 7.01 ng/mL vs. 17.03 ± 8.79 ng/mL) levels of boys were higher than girls (p < 0.01). From the perspective of regional distribution, the levels of vitamin A, D2, and E in Ningbo were higher than those in Hangzhou and other regions. The seasonal distribution of vitamin A and E levels were highest in summer, while vitamin D3 and D levels were highest in fall. The average vitamin concentrations were as follows: vitamin A was (126.81 ± 44.42) ng/mL; vitamin D2 was (1.84 ± 3.16) ng/mL, vitamin D3 was (15.71 ± 6.75) ng/mL, total vitamin D was (17.55 ± 7.91) ng/mL, and vitamin E was (5.72 ± 2.19) µg/mL. The reference value ranges of vitamin A, D2, D3, D, and E were (52.44 - 222.27) ng/mL, (0.01 - 11.66) ng/mL, (4.92 - 30.96) ng/mL, (4.92 - 30.96) ng/mL, and (2.66 - 10.92) µg/mL, respectively. CONCLUSIONS: The childrens' fat soluble vitamin levels in Zhejiang province show significant differences in age, gender, season, and regional distribution. Corresponding reference standards should be formulated as soon as possible, and vitamin supplements should be targeted and reasonable to ensure the healthy development of children.

Biomechanical properties of epithelial mesenchymal transition in idiopathic pulmonary fibrosis / 生物医学工程学杂志

Idiopathic pulmonary fibrosis (IPF) is a progressive scar-forming disease with a high mortality rate that has received widespread attention. Epithelial mesenchymal transition (EMT) is an important part of the pulmonary fibrosis process, and changes in the biomechanical properties of lung tissue have an important impact on it. In this paper, we summarize the changes in the biomechanical microenvironment of lung tissue in IPF-EMT in recent years, and provide a systematic review on the effects of alterations in the mechanical microenvironment in pulmonary fibrosis on the process of EMT, the effects of mechanical factors on the behavior of alveolar epithelial cells in EMT and the biomechanical signaling in EMT, in order to provide new references for the research on the prevention and treatment of IPF.

Berberine improves central memory formation of CD8+ T cells: Implications for design of natural product-based vaccines

Berberine (BBR) as one of the most effective natural products has been increasingly used to treat various chronic diseases due to its immunosuppressive/tolerogenic activities. However, it is unknown if BBR can be applied without abrogating the efforts of vaccination. Here we show that priming of CD8+ T cells in the presence of BBR lead to improved central memory formation (Tcm) with substantially reduced effector proliferation, primarily orchestrated through activation of AMPK and Stat5. Tcm derived from vaccinated mice fed with BBR were able to adoptively transfer protective immunity to naïve recipients. Vaccination of BBR-fed mice conferred better memory protection against infection without losing immediate effector efficacy, suggesting appreciable benefits from using BBR in vaccination. Thus, our study may help to lay the groundwork for mechanistic understanding of the immunomodulatory effects of natural products and their potential use as adjuvant that allows the design of novel vaccines with more desirable properties.

Efficacy observation of continuous dosing or alternate-day dosing of apatinib combined with SOX regimen as first-line treatment for advanced gastric cancer / 肿瘤研究与临床

Objective:To compare the clinical efficacy and safety of continuous dosing or alternate-day dosing of apatinib combined with SOX regimen as first-line treatment for patients with advanced gastric cancer.Methods:A total of 52 patients with human epidermal growth factor receptor 2 (HER2) negative and inoperable locally advanced or advanced gastric cancer who were pathologically diagnosed from January 2018 to January 2021 in the Second Affiliated Hospital of Shandong First Medical University were collected. The patients were divided into continuous dosing group and alternate-day dosing group by random number table method. The continuous dosing group received apatinib (250 mg, once a day) combined with SOX regimen (S-1+oxaliplatin); the alternate-day dosing group received apatinib (250 mg, once every other day) combined with SOX regimen. Twenty-one days were a cycle, and the efficacy was evaluated after 2 cycles. After 4-6 cycles, patients with stable disease received apatinib and S-1 for maintenance therapy. The therapeutic effects and adverse reactions of the two groups were compared.Results:The curative effect could be evaluated in 51 patients, including 26 in the continuous dosing group and 25 in the alternate-day dosing group. The disease control rates in the continuous dosing group and the alternate-day dosing group were 84.6% (22/26) and 76.0% (19/25) ( χ2 = 0.60, P = 0.499), and the median progression-free survival time was 7.50 months (95% CI 6.17-8.83 months) and 8.30 months (95% CI 6.99-9.61 months) ( χ2 = 0.71, P = 0.401), and the median overall survival time was 15.50 months (95% CI 11.30-19.69 months) and 15.60 months (95% CI 13.63-17.57 months) ( χ2 = 1.82, P = 0.177). The main adverse reactions in the two groups were leukopenia, thrombocytopenia, hypertension, nausea, vomiting, fatigue, hand-foot syndrome, proteinuria, liver and kidney damage. The incidence rates of ≥grade 3 adverse reactions in the continuous dosing group and the alternate-day dosing group were 42.3% (11/26) and 12.0% (3/25), and the difference was statistically significant ( χ2 = 4.46, P = 0.035). Conclusions:The efficacy of continuous dosing or alternate-day dosing of apatinib combined with SOX regimen as first-line treatment for advanced gastric cancer is similar, but the incidence of ≥grade 3 adverse reactions in alternate-day dosing group is lower, which improves the compliance and tolerance of patients.

Epidemiological characteristics analysis and incidence trend prediction of gonorrhea in Hubei Province in 2010-2021 / 公共卫生与预防医学

Objective To analyze the epidemiological characteristics and incidence trend of gonorrhea in Hubei Province, and to provide reference for scientific formulation of prevention and control measures. Methods Based on the surveillance data of gonorrhea from 2010 to 2021, three-way distribution and ARIMA model were used for data analysis and incidence prediction. Results From 2010 to 2021, the reported incidence rate fluctuated between 3.01/100 000-7.07/100 000, and the average annual reported incidence rate was 4.62/100 000. The reported incidence rate showed the characteristics of “first fall and then rise, and then fall and rise again”, and the peak incidence period was from June to December. The male to female ratio of reported cases was 5.78:1, and the number of reported cases in the age group of 20-39 years old accounted for 62.43% of the total number of cases. The reported cases were mainly housework and unemployed, farmers, and unknown occupation. The severity of the regional incidence was divided into 5 categories by the Q-type clustering, and the most serious category included Shennongjia Forest District, Huangshi City, and Wuhan City. The ARIMA model predicted the incidence rate to be in good agreement with the actual incidence rate, with a predicted number of 3 343 cases in 2022. Conclusion At present, gonorrhea in Hubei Province is still at a high prevalence level. There are obvious differences in gender, age, occupation, and regional distribution. The ARIMA model is suitable for predicting the incidence of gonorrhea, and it is predicted that the incidence will increase slightly in 2022.

Association between comorbidities and the risk of death in patients with COVID-19: sex-specific differences

BackgroundThe coronavirus disease 2019 (Covid-19) spreads rapidly around the world. ObjectiveTo evaluate the association between comorbidities and the risk of death in patients with COVID-19, and to further explore potential sex-specific differences. MethodsWe analyzed the data from 18,465 laboratory-confirmed cases that completed an epidemiological investigation in Hubei Province as of February 27, 2020. Information on death was obtained from the Infectious Disease Information System. The Cox proportional hazards model was used to estimate the association between comorbidities and the risk of death in patients with COVID-19. ResultsThe median age for COVID-19 patients was 50.5 years. 8828(47.81%) patients were females. Severe cases accounted for 20.11% of the study population. As of March 7, 2020, a total of 919 cases deceased from COVID-19 for a fatality rate of 4.98%. Hypertension (13.87%), diabetes (5.53%), and cardiovascular and cerebrovascular diseases (CBVDs) (4.45%) were the most prevalent comorbidities, and 27.37% of patients with COVID-19 reported having at least one comorbidity. After adjustment for age, gender, address, and clinical severity, patients with hypertension (HR 1.55, 95%CI 1.35-1.78), diabetes (HR 1.35, 95%CI 1.13-1.62), CBVDs (HR 1.70, 95%CI 1.43-2.02), chronic kidney diseases (HR 2.09, 95%CI 1.47-2.98), and at least two comorbidities (HR 1.84, 95%CI 1.55-2.18) had significant increased risks of death. And the association between diabetes and the risk of death from COVID-19 was prominent in women (HR 1.69, 95%CI 1.27-2.25) than in men (HR 1.16, 95%CI 0.91-1.46) (P for interaction = 0.036). ConclusionAmong laboratory-confirmed cases of COVID-19 in Hubei province, China, patients with hypertension, diabetes, CBVDs, chronic kidney diseases were significantly associated with increased risk of death. The association between diabetes and the risk of death tended to be stronger in women than in men. Clinicians should increase their awareness of the increased risk of death in COVID-19 patients with comorbidities.

Development history and prospects of disease control informatization in Hubei / 公共卫生与预防医学

Objective To sort out the development history of disease control informatization in Hubei, and provide reference for the establishment of the "Hubei model" of disease control informatization. Methods To understand the development process through data access and site investigation. Result Hubei CDC has built a provincial and municipal two-level data center; built a full-coverage security network; built a full traceable immune planning system; built a provincial, city, and county three-level video conference system; established a professional disease Control the information team. Conclusion The "Hubei model" of disease control informationization has a solid foundation. It will adhere to the development concept of people as the core, business as the problem-oriented, big data as the means, multi-point trigger as the benchmark, and network security as the foundation. Play the role of technical support and information leadership in the control business.

Effectiveness and feasibility of health management cloud platform for people with high-risk of coronary heart disease / 中华健康管理学杂志

Objective:To evaluate the effectiveness and feasibility of health management based on cloud platform for population with high-risk of coronary heart disease (CHD).Methods:In this study, self-control method was used to study the high-risk group of CHD in two community outpatient clinics in Jinshui District, Zhengzhou through cloud platform. One year later, the clinical indicators, the degree of mastering CHD prevention knowledge andthe medicine compliance of the group were evaluated. Finally, the feasibility and acceptance of cloud platform management were evaluated through questionnaire survey.Results:A total of 272 people were enrolled intothe group. After one year of cloud platform management, the blood lipid, uric acid, homocysteine and fasting blood glucose in the group weresignificantly improved (all P<0.05), but the glycosylated hemoglobin was not significantly reduced [(6.4±1.2)% vs.(6.3±1.1)%, P>0.05]. The degree of mastering CHD prevention knowledgewas significantly improved, and the medicine compliance was not significantly improved [(5.0±1.6) vs. (5.0±1.5), P>0.05]. Questionnaire survey showed that 228 (83.8%) of the patients had a high acceptance of cloud platform management, and 208 (76.5%) of the group wanted to continue to use cloud platform for health management. Conclusions:Health management based on cloud platform can improve the clinical index control of the high-risk population of CHD, and help the high-risk population to master the relevant knowledge of CHD prevention. Some functions of cloud platform need to be further improved.

Effect of lncRNA MEG3 on radiosensitivity of nasopharyngeal carcinoma cells by down-regulating miR-7-5p expression / 中华放射肿瘤学杂志

Objective To investigate the effect and underlying mechanism of lncRNA MEG3 on the radiosensitivity of nasopharyngeal carcinoma cells.Methods this experiment,overexpression control group,MEG3 overexpression group,miR-NC inhibition group,miR-7-5p inhibition group,overexpression control+4 Gy group,MEG3 overexpression+4 Gygroup,miR-NC inhibition+4 Gy group,miR-7-5p inhibition+4 Gy group,MEG3 overexpression + miR-NC overexpression group,MEG3 overexpression + miR-7-Sp overexpression group were established.The expression of miR-7-5p and MEG3 was detected by qRT-PCR.The radiosensitivity of nasopharyngeal carcinoma cells was measured by clone formation assay.Cell apoptosis was assessed by flow cytometry.The fluorescence activity was evaluated by dual luciferase reporter assay.Results MEG3 was lowly expressed in nasopharyngeal carcinoma tissues and cells.Overexpression of MEG3 and inhibition of miR-7-5p expression increased the radiosensitivity of nasopharyngeal carcinoma cells and promoted radiation-induced cell apoptosis.MEG3 could targetedly regulate the miR-7-5p expression.Overexpression of miR-7-5p reversed the effect of overexpression of MEG3 on the sensitization of nasopharyngeal carcinoma cells and the promotion of apoptosis induced by radiation exposure.Conclusions Overexpression of MEG3 increases the radiosensitivity of nasopharyngeal carcinoma cells and promotes radiation-induced cell apoptosis.The mechanism may be related to the down-regulation of miR-7-5p expression.

Reflection on the management of infectious disease information reporting during the COVID-19 outbreak / 公共卫生与预防医学

Objective Summarize the characteristics of infectious disease reporting management, reflect on the exposed problems, and make reference suggestions under the situation of COVID-19. Methods In-depth analysis through literature research and practical demonstration. Results The functions of each department, organic integration, unified management, communication from top to bottom, upgrade and perfection, and information sharing can give full play to the early warning role of infectious disease surveillance. Conclusion The infectious disease reporting management system should be perfected and upgraded from top to bottom and from the inside out.

Semicircular Canal Plugging Based on Endolymphatic Sac Decompression:The Surgical Technique Discussion for Intractable Meniere's Disease / 听力学及言语疾病杂志

Objective To study the effects of endolymphatic sac decompression and on semicircular canal plugging in treating intractable Meniere's disease.Methods A total of 14 cases of intractable Meniere's disease were included in this study.The age was from 33~67 years old and the history was from 1 to 40 years.The hearing level of bone was from 35 to 65 dB for the speech frequencies.All cases received the treatments according to the pre-op-erative design.The endolymphatic sac was decompressed and the three semicircular canal bones were drilled to cre-ate a fenestra followed by soft tissue plugging into the canal.The vertigo,hearing level and tinnitus were included in the following up.Results All cases had no facial palsy,no cerebrospinal leak,and no vertical after surgery.In the period of 3 to 18 months following up,the attack of Meniere's disease was completely controlled for 13 cases excep-tion of one lost case.For five cases,the hearing level descended 10 to 15 dB compared to pre-operation.Conclusion Although the endolymphatic sac decompression can relieve endolymphatic pressure,this may not adequately pro-tect the hearing caused by the semicircular canal plugging.The surgical technique is reliable and safe;however fur-ther clinical data should be gathered.

Partial safety of Ad-HIF-1α-Trip gene transfection on a rabbit model of acute hind-limb ischemia / 实用医学杂志

Objective To investigate the partial safety of the recombinant adenovirus containing the triple-point mutants HIF-1αgene (Ad-HIF-1α-Trip)transfection in a rabbit model of hind limb ischemia. Methods After ligation of left femoral artery, 22 New Zealand whites rabbits were randomly divided into 3 groups: saline group(n=6), Ad-Null group(n=6) and Ad-HIF-1α-Trip group(n=10). After operation, saline, Ad-Null and Ad-HIF-1αwere injected intramuscularly respectively. The expression of transferred HIF-1αat mRNA level in the ischemic skeletal muscle and other important organs were detected by Real-time PCR 10 days after gene transfection. The body temperature, weight, blood, liver and renal function, as well as the myocardial enzymes were detected before operation, and on the 3th, 7th, 14th and 28th day after gene transfection, so that pathological changes could be observed. Results On the 10th day after gene transfection, obvious expressions of HIF-1αat mRNA level in the ischemic limb were found, but no expression in other important organs was detected in Ad-HIF-1α-Trip group. The blood routine, liver and renal function were all in the normal range (P > 0.05). No abnormalities were found in heart, liver, kidney, and lung HE transfection in Ad-HIF-1α-Trip group. Conclusion Single intramuscular injection of Ad-HIF-1α-Trip can be expressed obviously in the ischemic limb without detected damage of liver , cardiac and kidney.

Classification and grading of environments with Oncomelania hupensis snails inside embankment of marshland and lake areas / 中国血吸虫病防治杂志

Objective To classify and grade the environments with Oncomelania hupensis snails inside embankment in marsh-land and lake areas,so as to improve the work efficiency and realize the systematic management. Methods The schistosomiasis endemic area Liaodi and Xiongdi villages in Jiangling County,Hubei Province were selected as the experiment villages,and the environments with snails in the two villages were divided into sections with a length of 500m,then the snail situation were sur-veyed by the systematic sampling method with 10m and 50m a frame respectively. The environments were classified according to the discovery of infected snails and wild fecal contamination,and the numbers of sites with snails and their areas in different class-es were recorded. Meanwhile,the data of sites with infected snails in Jingzhou City during the recent 5 years were collected and graded according to the average density of snails,so as to discuss the correlativity between the grades of environments with snails and the numbers of sites with infected snails and the occurrence rate of frames with snails. Results There were 1 967 sites with in-fected snails in Jingzhou City during the recent 5 years,and there was a positive correlation between the grades of environments with snails and the occurrence rate of frames with snails(rs=0.77,P0.05),but the time-consuming of the former was 3 times of the latter. Conclusions The classification and grading of the environments with snails inside embankment in marshland and lake areas can master the key point of the snail survey. The subsection and setting frames at a suitable distance can save time and manpower,improve work efficiency,as well as understand the distribution of snail status of the environment with snails,which can realize the sort management of the snail envi-ronments inside embankment.

Effects of a triple mutant hypoxia-inducible factor-1α on proliferation and vascular endothelial growth factor expression in human microvascular endothelial cells / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the effects of a recombinant adenovirus-mediated triple mutant hypoxia-inducible factor-1α (HIF-1α) on the proliferation and vascular endothelial growth factor (VEGF) expression in human microvascular endothelial cells (hMVECs).</p><p><b>METHODS</b>The adenovirus vector of the triple mutant HIF-1α (Ad-HIF-1α(564/402/803)), adenovirus vector of wild-type HIF-1α (Ad-HIF-1α(nature)), Ad-lacZ and Ad-Null were amplified in HEK293A cells, and the adenoviruses were purified and titrated. Dual luciferase reporter assay system was employed to detect the transcriptional activities of wild-type and triple mutant HIF-1α. After infection of the hMVECs with the adenoviruses, the cellular protein expressions of HIF-1α and VEGF were detected using Western blotting, and the cell proliferation was assessed by MTS assay.</p><p><b>RESULTS</b>The transcriptional activity of the triple mutant HIF-1α was significantly higher than that of wildtype HIF-1α in the infected hMVECs (P<0.001). The protein levels of HIF-1α and VEGF in cells infected with Ad-HIF-1α(564/402/803) were significantly higher than those in cells infected with other adenoviruses, and HIF-1α dose-dependently up-regulated VEGF protein expression. The absorbance was significantly higher in Ad-HIF-1α(564/402/803) group than in the other groups (P<0.01) on the third and fifth days after infection.</p><p><b>CONCLUSION</b>The recombinant adenovirus-mediated triple mutant HIF-1α expression is stable under normoxic condition. The triple mutant HIF-1α can up-regulate the expression of VEGF protein in hMVECs to promote the cell proliferation.</p>

Measurement of radon concentration and dose assessment of miners for non-uranium mines in Shandong Province / 中华放射医学与防护杂志

Objective To measure 222Rn and 220Rn concentrations in the underground non-uranium mines in Shandong Province,and to estimate the annual effective dose to the miners.Methods Concentrations of 222Rn and 220Rn in selected gold,iron,coal and clay mines were determined by passive time-integrating detectors with CR-39.Activity concentrations of 226Ra,232Th and 40K were determined using gamma spectrometry equipped with HPGe detector.Results The average concentrations of 220Rn in the gold,iron,coal and clay mines were estimated to be 1200,280,120 and 40 Bq/m3,respectively.The activity concentrations of 226Ra,232Th,40K in the ores for gold,iron,coal and clay mines ranged the same as the soil in China.The annual effective dose due to radon exposure in gold and iron mine was 7.70 mSv and 1.74 mSv,respectively.The annual doses received by miners in the coal and clay mines were lower than 1 mSv.Conclusions Underground miners in some gold and iron mines should be treated as workers occupationally exposed to ionizing radiation.The measurement such as increasing ventilation should be implemented to reduce underground radon concentration in these mines.

An expression plasmid encoding recombinant immunotoxin IP10-DT390 suppresses the experimental autoimmune encephalomyelitis / 生物医学工程学杂志

Experimental autoimmune encephalomyelitis (EAE) is an autoimmune disease of the central nervous system (CNS); it serves as a model for the human multiple sclerosis (MS). In mice, EAE is mediated by T cells specific for various myelin basic proteins which migrate from the periphery to the CNS. In search of a way to prevent the induction and progression of EAE, we observed the effects of recombinant immunotoxin IP10-DT390 on blocking or eliminating the active T cells in the EAE model. In this paper is presented an experimental gene therapy-based model in which the mice were made resistant to EAE induction by plasmid DNA encoding recombinant immunotoxin that was injected into the leg muscles of mice. The new immuno-biological construct could selectively impair autoreactive T-cell homing while the duration of clinical signs is shorter, and the new construct would not affect other components of the immune response. These data demonstrated the effectiveness of the constructs in the treatment of EAE and suggested its usefulness in the treatment of other autoimmune diseases.

Investigation about the compliance of education about how to preventing sharp instrument injuries among clinical nurses / 中国实用护理杂志

To make sure the compliance of education about how to preventing sharp instrument injuries among clinical nurses, and then propose certain effective countermeasures to preventing sharp instrument injuries. Methods Using the questionnaire which was designed according to the requirement of preventing sharp instrument injuries in clinical nursing cares to investigated 1291 nurses from 22 hospitals, and then analyzed the datum which had summarized from this investigation. Results The self-prevention of sharp instrument injuries in clinical nursing cares was weak in general. There were 11.93% nurses know nothing about how to preventing sharp instrument injuries. The ratio of usually washing hands before and after touch patients was 33.23% , and the ratio of usually wearing gloves when doing some operation which maybe touch blood was 23.01 %. There were 976 accidents of sharp instrument injuries in this investigation, the ratio of report was only 23.16%. Conclusion Reinforce the education about how to preventing sharp instrument injuries among clinical nurses is an effective method to low down the incidence rate of sharp instrument injuries, and then avoid the risk of infection which come from clinical nursing operation.