Humans ; Occupational Diseases ; diagnosis

Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Silicosis ; diagnostic imaging ; Tomography, Spiral Computed

It is unanimously accepted that stroke is a highly heterogeneous disorder.Different subtypes of ischemic stroke may have different risk factors,clinical features,and prognoses.The aim of this study was to evaluate the risk factors,clinical characteristics,and prognoses of different subtypes of ischemic stroke defined by the Trial of ORG10172 in Acute Stroke Treatment (TOAST) criteria.We prospectively analyzed the data from 530 consecutive patients who were admitted to our hospital with acute ischemic stroke within 7 days of stroke onset during the study period.Standardized data assessment was used and the cause of ischemic stroke was classified according to the TOAST criteria.Patients were followed up till 30 and 90 days after stroke onset.It was found that large-artery atherosclerosis was the most frequent etiology of stroke (37.4％),and showed the highest male preponderance,the highest prevalence of previous transient ischemic attack,and the longest hospital stay among all subtypes.Small artery disease (36.4％) was associated with higher body mass index,higher plasma triglycerides,and lower plasma high-density lipoprotein cholesterol than cardioembolism.Cardioembolism (7.7％),which was particularly common in the elderly (i.e.,individuals aged 65 years and older),showed the highest female preponderance,the highest prevalence of atrial fibrillation,the earliest presentation to hospital after stroke onset,the most severe symptoms on admission,the maximum complications associated with an adverse outcome,and the highest rate of stroke recurrence and mortality.Our results suggest that ischemic stroke should be regarded as a highly heterogeneous disorder.Studies involving risk factors,clinical features,and prognoses of ischemic stroke should differentiate between etiologic stroke subtypes.

Objective To provide evidence for effective implementation of influenza and pneumonia immune strategies, we investigated the awareness of influenza and pneumonia and the willingness of vaccination among chronic disease patients.Methods A stratified multistage cluster sampling method was used to investigate 720 patients less than 75 years of age.Results Overall, 717 completed responses were received.The awareness rates of influenza and pneumonia diseases were 59.83% and 59.55%, respectively.However, the awareness rates of influenza and pneumonia vaccine were 17.71% and 6.00%, respectively.The vaccination rate of influenza vaccine was 1.26% while no patients received pneumonia vaccination.Among those not vaccinated the most frequent reasons for not receiving the vaccine included "Believed oneself unlikely to be infected with influenza/pneumonia" and "No recommendation has been received for influenza/pneumonia vaccination".The influence on recommendations by doctors at vaccine clinic and by general practitioner had no significant statistical difference (P>0.05).Conclusion The main reasons for such low awareness and willingness may be due to their poorly knowledge on the risk of influenza/pneumonia diseases, and related vaccines.Health education and intervention should be taken to heighten the vaccination rates of influenza/pneumonia vaccines.

BACKGROUND:Anti-infective ability determine the success or failure of skin grafting. It is one of the commonly used methods to enhance the anti-infective ability of implants by compounding antibacterial materials with scaffolds. OBJECTIVE:To investigate the effect of porous collagen/silk fibroin scaffolds carrying zinc oxide nanoparticles against infection and inflammation, and to evaluate its effect on wound healing. METHODS:Thirty-two Sprague-Dawley rats with a full-thickness wound on the back skin were randomly divided into two groups. In experimental groiup, porous collagen/silk fibroin scaffolds containing zinc oxide nanoparticles were implanted, while only collagen/silk fibroin scaffolds were implanted in control group. Wound healing was compared between the two groups by measuring residual wound area at 1, 2, 4, 8 weeks post implantation. Hematoxylin-eosin and interleukin 6 immumohistochemical staining were performed at 1, 2, 4 weeks post implantation to observe wound morphology and inflammatory reactions. Meanwhile, expression of interleukin 6 and interleukin 1β was detected by real-time PCR. RESULTS AND CONCLUSION:(1) At 2, 4, 8 weeks post implantation, significantly increased healing rate was observed in the experiment group compared with the control group (P<0.05). (2) Findings from the hematoxylin-eosin staining showed that obvious inflammatory cell infiltration was observed in the control group, but less inflammation with vigorous growth of granulation tissues on the wound surface occurred in the experimental group at 1 week after implantation. Then, the wound repair was basically completed in the experimental group presenting with complete and compact epidermal tissue structure, while scar formation with no skin cover was found in the control group at 4 weeks after implantation. (3) Findings from the interleukin 6 immumohistochemical staining showed that there was interleukin 6 positive expression in both two groups to different extents; at 4 weeks after implantation, the expression of interleukin 6 was remarkably reduced in the control group, but it was still a strong positive expression, while week positive expression of interleukin 6 was observed in the experimental group. (4) Compared with the control group, the mRNA expression of interleukin 6 and interleukin 1β was both lower in the experimental group at 1, 2, 4 weeks after implantation, but there was a significant difference between the two groups at 1 and 2 weeks after implantation (P<0.05). Overall, the porous collagen/silk fibroin scaffold carrying zinc oxide nanoparticles can effectively reduce inflammations following skin injury, and accelerate skin wound healing.

Objective To establish a capture enzyme-linked immunosorbent assay (ELISA) for detection of plague IgM antibody in herding dogs.Methods ELISA plates were coated with serum IgM antibody against dogs and F1 antibody to plague in the serum of herding dogs was detected by a sandwich ELISA.Results A total of 216 serum samples of herding dogs were tested,26 were positive for plague F1 antibody and the positive rate was 12.03％ (26/216); 14 were positive for plague IgM antibody and the positive rate was 6.48％ (14/216); IgM positive accounted for 53.8％(14/26) of all positive samples.Conclusions Serum plague IgM antibody of herding dogs can be used to predict the prevalent time and distribution of recent animal plague in plague foci indirectly,and to provide reference information for timely implementation of control measures.

Objective To conduct Meta analysis and trial sequential analysis (TSA) on warm acupuncture treatment on lumbar intervertebral disc protrusion (LIDP); To provide references for evidence-based medicine of this disease.Methods Articles about warm acupuncture treatment for LIDP clinical randomized controlled trials in CNKI, Wanfang database, Chonging Wepu, CBM, OubMed, Cochrane Library, and Emnase were retrieved by computer. The retrieval range was from the database establishing to March, 2017. According to Cochrane Handbook for Systematic Reviews of Interventions 5.2.0 Bias risk assessment tool, included articles were under quality evaluation. Revman5.2 software was used to carry out Meta analysis, and TSAv0.9 software was used to conduct TSA.Results Ten articles were included, involving 1035 cases. Meta analysis showed that the total effective rates of warm acupuncture treatment for LIDP [95％CI (2.43, 5.40),Z=6.31,P<0.00001], pain index [95％CI (-1.05, -0.58),Z=6.77,P<0.00001], lumbar function [95％CI (2.56, 8.61),Z=3.62,P=0.0003] were better than other therapies, with statistical significance. Funnels included in the study suggest publication bias. TSA results suggested that the total efficiency and pain index Meta analysis results of this study were reliable.Conclusion Warm acupuncture treatment for LIDP has confirmed efficacy, with certain advantages. However, the literature included is not with good quality, so more large sample, multicenter, methodological RCTs are needed for further validation.

Objective On July 6, 2010, the parents of a patient with confirmed measles reported several suspected measles patients with fever and rash in their village. An investigation was carried out to verify and understand the cause of the outbreak. Methods Several suspected cases had an onset of fever and rash in this and other neighboring villages during June 1 to August 3,2010. A confirmed case was a suspected case with measles-specific IgM identified in the serum. We conducted door-to-door visits and searched the Chinese Center for Disease Control and Prevention Information System to identify cases, also conducted a retrospective cohort study among migrant children aged 8 months-14 years to identify risk factors related to measles. Results We identified 19 measles cases (17 confirmed case, 2 suspected cases)in the village, and all of them were migrants. Children aged 1-2 years had the highest attack rate(13%). The primary case-patient had onset on the day she arrived in this village(June 4,2010). Caretakers from an unlicensed private clinic were providing service in the village but did not report the outbreak to the public health authority. The outbreak was identified only after receiving a report from the parents of one of the patients, by that time the outbreak had lasted for one month. The measles vaccine coverage rate was 81% among the 315 migrant children aged 8 months-14 years. Among the 61 unvaccinated children, those who reportedly being contacted a measles patient had a higher attack rate(14/16, 88%)than those who did not(2/45, 4.4%)(Relative risk=20, Fisher' s exact 95% confidence interval: 5.7-94). Conclusion The low measles vaccine coverage among migrant children and lack of measures taken on the incident, timely isolation diagnosis/reporting by the caretakers from the unlicensed private clinic etc. had contributed to this prolonged outbreak. Measures need to be taken to improve the immunization services for migrant populations and to enhance measles surveillance programs in the area.

OBJECTIVE: To explore the effect of electroacupuncture on heroin seeking behavior and FosB expression in relevant brain regions. METHODS: Rat model of heroin relapse behaviors was developed with progressive fixed ratio program,and model rats were randomly divided into 3 groups: a restraint group, a needle retention group, and a electroacupuncture group. The heroin seeking behavior was elicited by a small dose of heroin. FosB expression in relevnt brain region was assessed with immunohistochemical technique. RESULTS: Tests on reinstatement of drug seeking behavior induced by heroin priming showed that compared with the restraint group, active pokes in the electroacupuncture group decreased significantly(P<0.05). Compared with the restraint group, the expression of FosB positive nuclei in Acd, Pcg and CeA of rats brain both in the electroacupuncture group and the needle retention group (P<0.05) decreased significantly. In LC, the expression of FosB positive nuclei in the needle retention group decreased significantly compared with the restraint group (P<0.05). CONCLUSION Continuous acupuncture and needle retention attentuate the reinstatement of heroin-seeking behaviors induced by heroin priming, and the inhibitory effect may be mediated partially by the expression of FosB in relevant regions which are involved in the process of heroin addiction.
Amygdala ; metabolism ; Animals ; Behavior, Animal ; Brain ; metabolism ; Electroacupuncture ; methods ; Heroin Dependence ; metabolism ; psychology ; therapy ; Male ; Nucleus Accumbens ; metabolism ; Proto-Oncogene Proteins c-fos ; biosynthesis ; Random Allocation ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo study the clinicopathologic features of aggressive natural killer cell leukemia (ANKL).

METHODSThe clinical and pathologic features were analyzed in 10 patients with ANKL. The complete blood count, peripheral blood smears, bone marrow aspirates and bone marrow biopsies were studied. Immunophenotypic analysis was carried out by flow cytometry and immunohistochemistry. T-cell receptor (TCR) γ gene rearrangement was studied by PCR method.

RESULTSThe most frequent hematologic abnormalities observed were anemia (7 cases) and thrombocytopenia (9 cases). Large granular lymphocytes were found on peripheral blood smears of 6 patients. In bone marrow aspirates, lymphocytosis (> 20.0%) was demonstrated in 8 cases and large granular lymphocytes in 6 cases. Bone marrow biopsies revealed various degrees of neoplastic infiltration, as follows: mild (5 cases), moderate (3 cases) and severe (2 cases). The neoplastic cells were mainly interstitial in distribution in 8 cases and diffuse in 2 cases. Hemophagocytosis was observed in 4 cases. Flow cytometry showed CD2+ sCD3- CD4- CD56+ CD57- in all cases, CD7+ in 9 cases, CD16+ in 5 cases, CD8+ in 4 cases and CD5+ in 1 case. Immunohistochemistry performed in 8 cases showed the following results: cCD3+ in 4 cases, CD56+ in 6 cases, TIA-1+ in 6 cases, granzyme B+ in 4 cases and perforin+ in 2 cases. PCR study revealed germline TCRγ gene configuration in all cases.

CONCLUSIONSANKL is a highly aggressive NK cell-derived lymphoid neoplasm. Comprehensive morphologic, immunophenotypic and molecular analysis are essential in arriving at a correct diagnosis. ANKL needs to be distinguished from other types of NK-cell and T-cell lymphomas.

Adolescent ; Adult ; Bone Marrow ; pathology ; CD3 Complex ; metabolism ; CD56 Antigen ; metabolism ; Child ; Female ; Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor ; Humans ; Immunophenotyping ; Leukemia, Large Granular Lymphocytic ; drug therapy ; genetics ; metabolism ; pathology ; Lymphocytosis ; Male ; Middle Aged ; Poly(A)-Binding Proteins ; metabolism ; Recurrence ; Retrospective Studies ; Survival Rate ; T-Cell Intracellular Antigen-1 ; Young Adult