BACKGROUND Inflammatory bowel disease(IBD) is characterized by chronic and non-specific inflammation of the intestinal mucosa and mainly includes ulcerative colitis and Crohn’s disease.AIM To explore the beneficial...BACKGROUND Inflammatory bowel disease(IBD) is characterized by chronic and non-specific inflammation of the intestinal mucosa and mainly includes ulcerative colitis and Crohn’s disease.AIM To explore the beneficial effect of Toxo ROP16Ⅰ/Ⅲ-induced M2 phynotype macrophages in homeostasis of IBDs through downregulation of M1 inflammatory cells.METHODS RAW264.7 macrophages stimulated by lipopolysaccharide(LPS)(M1 cells) were co-cultured with Caco-2 cells as an inflammatory model of IBD in vitro.The expression of Toxo ROP16Ⅰ/Ⅲ was observed in RAW264.7 macrophages that were transfected with p EGFP-rop16Ⅰ/Ⅲ.The phenotypes of M2 and M1 macrophage cells were assessed by quantitative real-time reverse transcriptase polymerase chain reaction and the expression of tumor necrosis factor(TNF)-α,interleukin(IL)-1β,IL-6,transforming growth factor(TGF)-β1,IL-10,inducible nitric oxide synthase(i NOS),and arginase-1(Arg-1) was detected.The expression of i NOS,Arg-1,signal transducer and activator of transcription 3(Stat3),p-Stat3,Stat6,pStat6,programmed death ligand-2(PD-L2),caspase-3,-8,and-9 was analyzed by Western blotting,and Griess assays were performed to detect nitric oxide(NO).TNF-α,IL-1β,IL-6,TGF-β1,and IL-10 expression in the supernatants was detected by enzyme-linked immunosorbent assay,and Caco-2 cell apoptosis was determined by flow cytometry after mixing M1 cells with M2 cells in a Caco-2 cell co-culture system.RESULTS M1 cells exhibited significantly increased production of i NOS,NO,TNF-α,IL-1β,and IL-6,while Toxo ROP16Ⅰ/Ⅲ induced macrophage bias to M2 cells in vitro,showing increased expression of Arg-1,IL-10 and TGF-β1 and elevated production of p-Stat3 and p-Stat6.The mixed M1 and M2 cell culture induced by Toxo ROP16 Ⅰ/Ⅲ exhibited decreased production of NO and i NOS and upregulated expression of Arg-1 and PD-L2.Accordingly,Caco-2 cells became apoptotic,and apoptosis-associated proteins such as caspase-3,-8 and-9 were dampened during co-culture of M1 and M2 cells.Flow cytometry analysis showed that co-culture of M1 cells with Caco-2 cells facilitated the apoptosis of Caco-2 cells,but co-culture of M1 and M2 cells alleviated Caco-2 cell apoptosis.CONCLUSION Toxo ROP16 Ⅰ/Ⅲ-induced M2 macrophages inhibited apoptosis of Caco-2 cells caused by M1 macrophages.This finding may help gain a better understanding of the underlying mechanism and represent a promising therapeutic strategy for IBDs.展开更多
Background A newer generation bioresorbable scaffold Firesorb(MicroP ort,Shanghai,China),with thinner-strut(100~125μm),is constructed from a PLLA backbone abluminally coated with a PDLLA layer eluting sirolimus.FUTUR...Background A newer generation bioresorbable scaffold Firesorb(MicroP ort,Shanghai,China),with thinner-strut(100~125μm),is constructed from a PLLA backbone abluminally coated with a PDLLA layer eluting sirolimus.FUTURE-I study intended to assess the feasibility,preliminary safety and effectiveness of the Firesorb BRS in patients with single de novo coronary artery lesions.We evaluated the long-term performance of the new generation BRS with thinner struts serially(post-procedure,at 6 months,1,2 year)after implantation.展开更多
AIM:To evaluate the alterations of the retinal microvasculature and foveal avascular zone in patients with Parkinson’s disease(PD)using optical coherence tomography angiography(OCT-A).METHODS:A retrospective study of...AIM:To evaluate the alterations of the retinal microvasculature and foveal avascular zone in patients with Parkinson’s disease(PD)using optical coherence tomography angiography(OCT-A).METHODS:A retrospective study of PD patients examined in the Ophthalmology Department of the General Hospital of Athens,“Georgios Gennimatas”from March 2021 to March 2022 was conducted.Totally 44 patients with PD were included and 18 healthy controls were examined,hence a total of 124 eyes were enrolled in the study.The foveal and parafoveal superficial and deep capillary plexus vascular density(fSCP-VD,fDCP-VD,pSCP-VD,pDCP-CD)and foveal avascular zone(FAZ)were quantified with OCTA.Optical coherence tomography(OCT)was used to measure macular thickness.Our statistical analysis was conducted by using a mixed effect linear regression model.RESULTS:After adjustment for age and gender,the mean parafoveal superficial capillary plexus vascular density(pSCP-VD)and mean parafoveal deep capillary plexus vascular density(pDCP-VD)were significantly decreased in individuals with PD(P<0.001 in both)by-2.35(95%CI-3.3,-1.45)and-7.5(95%CI-10.4,-4.6)respectively.fSCP-VD and fDCP-VD didn’t approach statistical significance.The FAZ area and perimeter were significantly decreased(P<0.001 in both)by-0.1 mm^(2)(95%CI-0.13,-0.07)and-0.49 mm^(2)(95%CI-0.66,-0.32)respectively.Circularity didn’t approach statistical significance.Central retinal thickness(CRT)was significantly decreased in individuals with PD(P<0.001)by-23.1μm(95%CI-30.2,-16)and temporal retinal thickness(TRT)was decreased(P=0.025)by-11μm(95%CI-22,-1.5)while nasal retinal thickness(NRT)only approached statistical significance(P=0.066).CONCLUSION:The mean pSCP-VD,pDCP-VD,CRT and TRT are significantly decreased and FAZ is altered in individuals with PD.These findings can be potentially used as biomarkers for the diagnosis and evaluation of early PD.展开更多
Newcastle disease( ND) is one of the most serious infectious diseases that infect the poultry industry.There is only one serotype of Newcastle disease virus( NDV),but NDVs can be divided into two distinct classes( cla...Newcastle disease( ND) is one of the most serious infectious diseases that infect the poultry industry.There is only one serotype of Newcastle disease virus( NDV),but NDVs can be divided into two distinct classes( class Ⅰ,and class Ⅱ) according to their genetic relationship.To develop a method for rapid quantitative detection of class Ⅰ NDV,a pair of primers and a TaqM an probe were designed and synthesized according to the conservative sequence of NP gene of class Ⅰ NDV.The positive recombinant plasmid harboring NP gene of JS-18-05 isolate was used as a positive template to establish the standard curve.A real-time fluorescent quantitative RT-PCR method was established for rapid detection of class Ⅰ NDV with strong specificity,high sensitivity and good repeatability.The established method exhibited a good linear relationship within the concentration of 102 to 108 copies of NDV,by which 1 μl of 10 copy of NDV nucleic acid could be detected in the initial template.Compared with conventional virus isolation methods,the established method had similar sensitivity and led to the same results in detecting33 class Ⅰ,class Ⅱ NDV isolates.The study provided the basis for rapid quantitative detection of class Ⅰ NDVs and further clarification of their pathogenicity and pathogenic mechanism in poultry.展开更多
[Objective]The model of regionalization management of specific equine disease-free zone were analysed and discussed. [Methods]International animal epidemics regionalization management experience and specific equine di...[Objective]The model of regionalization management of specific equine disease-free zone were analysed and discussed. [Methods]International animal epidemics regionalization management experience and specific equine disease-free zone establishment were analysed and discussed based on the State and OIE principles. [Results]The regionalization management of specific equine disease-free zone with county administrative regions level of international recognition was established first in China,combined with the region's geographical barrier and animal health. [Conclusion]The aim is to to provide experience and reference for other areas to establish specific disease-free zone.展开更多
[ Objective] In order to construct the specific equine disease-free zone of of the Guangzhou Asian Games, to ensure that the equestrian events of Guangzhou Asian Games be smoothly held. [Methods] The species, quantiti...[ Objective] In order to construct the specific equine disease-free zone of of the Guangzhou Asian Games, to ensure that the equestrian events of Guangzhou Asian Games be smoothly held. [Methods] The species, quantities, distribution and seasonal variations of insects and wild animals in related zones were investigated from 2008 to 2010, and the collected samples of the insects and wild animals were tested in laboratory for related equine diseases. [Results] The investigations indicated that there were some mosquitoes, flies, horseflies, punkies, ticks, bats, wild birds and wild bears in equastrianism venue and peripheral regions of disease-free zone of the Guangzhou Asian Games, the laboratory results of Japa- nese encephalitis, vesicular stomatitis, Nipah virus disease, West Nile fever, and Trypanosomiasis evansi, were all negative. According to the in- vestigations and test results, the risk assessments of insect and wild animal vectors in the prevalence of related equine diseases were made to con- firm that the risk was relatively low or very low, and comprehensive prevention and control measures with prevention as major measures and insecti- cides application and environment managements as supplementary means were made on the basis of the risk assessment conclusions. [ Conclu- sions] This research has laid a solid foundation for the successful building of the first specific equine disease-free zone in our country, ensured the smooth holding of the 16th equastdan competition in Guangzhou Asian Games.展开更多
It is being increasingly recognized that patients with liver disease develop bone loss that can be severe enough to lead to atraumatic fractures and thus markedly diminish life quality and expectancy. The estimated pr...It is being increasingly recognized that patients with liver disease develop bone loss that can be severe enough to lead to atraumatic fractures and thus markedly diminish life quality and expectancy. The estimated prevalence for liver-related osteoporosis is between 20-420/100000 of the general population, and fractures between 60-880/100000. It should be kept in mind that up to 40% of patients with chronic liver disease may experience a fracture. The pathogenic mediators include fibronectin, insulin like growth factor-I, and various cytokines, but decreased vitamin D and/or treatment with corticosteroids contribute to worsening bone health. Despite the advances in bone biology that have shed some light on the pathogenesis of this bone loss, treatment options remain nonspecific and tightly linked to treatments of other forms of osteoporosis. Thus, treatment should include calcium and vitamin D supplementation in all patients with chronic liver disease. Therapy with bisphosphonates should be considered, especially in patients receiving corticosteroids. This review focuses on the prevalence of this entity as well as the evidence available with regard to the pathogenesis of bone loss in liver disease, the diagnostic steps required in all patients, and the therapeutic options available.展开更多
Cutaneous Leishmaniasis (CL) is a severe health problem and a parasitic disease on human dermal and widely pervades tropical and subtropical developing counties. The study is mainly focused on Geographic Information S...Cutaneous Leishmaniasis (CL) is a severe health problem and a parasitic disease on human dermal and widely pervades tropical and subtropical developing counties. The study is mainly focused on Geographic Information System (GIS) based Situational Analysis (SA). The clinically recorded 394 CL patients’ information was obtained from the District General Hospital of Polonnaruwa (DGHP) for 2017 and 2018. The spatial distribution of these patients was collected using Global Positing System (GPS). Moran’s I Index spatial autocorrelation technique and Getis-Ord Gi were used to identify the study site’s hot spot and cold spot areas. More than 75% of the CL patients’ population were highly involved with agricultural activities, and they are the highly exposed group of the CL in the study area. Also, 75% of the CL population were men, and the highly vulnerable age group was 35 - 39 men and 40 - 44 women. The generated Moran’s I Index indicates 0.0321, representing a randomly distributed pattern of CL patients over the District, and the Getis-Ord Gi Z Score value was >1.96 (p < 0.05). It is revealed that, during and in the post-harvesting periods of paddy cultivation, farmers are highly exposed to sandflies becoming CL patients. Due to this situation, the researchers observed that the highest number of patients have reported in May of both years and the infection period is two to four weeks earlier than the reported month. Hence to prevent the disease spread, it is essential to implement an awareness program regarding sandflies’ behaviour and CLD.展开更多
The distribution of key diseases of coffee particularly the Coffee berry disease (CBD) and Coffee leaf rust (CLR) in Kenya depended on coffee growing agro-ecological zones, which have varied climatic conditions. U...The distribution of key diseases of coffee particularly the Coffee berry disease (CBD) and Coffee leaf rust (CLR) in Kenya depended on coffee growing agro-ecological zones, which have varied climatic conditions. Under the changing climate, there has been an observed shift in their altitudinal distribution. To ascertain whether these diseases have shifted in their distribution, an extensive field survey covering 120 coffee farmers/households in all the coffee growing agro ecological zones was conducted. The survey established four coffee diseases; -viz. Coffee berry disease, Coffee leaf rust, Fusarium root disease (FRD) and Bacterial blight of coffee (BBC) as of economic importance to the farming community. The CBD, CLR and FRD were widely distributed in all coffee growing agro ecological zones. Of the four diseases, the CBD (65%) and CLR (63.3%) were most common as reported by the farmers, however these diseases dominated in their respective agro ecological zones; CBD (72.2%) in Upper Midland 1 (UM1) and CLR (75.0%) in Upper Midland 2 (UM2). Both diseases equally infected coffee farms (69.2%) in main coffee zone (UM2). According to the survey said diseases have increased their altitudinal range, a trend that will increase diseases pressure in coffee growing areas.展开更多
Examining the retinal tissue has the potential to provide a unique method and technique to quantify Alzheimer’s disease-related changes in participants at various stages of the disease.In this metaanalysis,we aimed t...Examining the retinal tissue has the potential to provide a unique method and technique to quantify Alzheimer’s disease-related changes in participants at various stages of the disease.In this metaanalysis,we aimed to investigate the association of various optical coherence tomography parameters with Alzheimer’s disease and whether retinal measurements can be used to diffe rentiate between Alzheimer’s disease and control subjects.Scientific databases including Google Schola r,Web of Science,and PubMed were systematically searched for published articles that evaluated retinal nerve fiber layer thickness and retinal microvascular network in Alzheimer’s disease and control subjects.Seventy-three studies(5850 participants,including 2249 Alzheimer’s disease patients and 3601controls) were included in this meta-analysis.Relative to controls,Alzheimer’s disease patients had a significantly lower global retinal nerve fiber layer thickness(standardized mean difference [SMD]=-0.79,95% confidence intervals [CI]:-1.03 to-0.54,P <0.00001) as well as each quadrant being thinner in Alzheimer’s disease versus controls.Regarding macular paramete rs,values measured by optical coherence tomography were significantly lower in Alzheimer’s disease than controls for macular thickness(pooled SMD:-0.44,95% CI:-0.67 to-0.20,P=0.0003),foveal thickness(pooled SMD=-0.39,95% CI:-0.58 to-0.19,P <0.0001),ganglion cell inner plexiform layer(SMD=-1.26,95% CI:-2.24 to-0.27,P=0.01) and macular volume(pooled SMD=-0.41,95% CI-0.76 to-0.07,P=0.02).Analysis using optical coherence tomography angiography parameters revealed mixed results between Alzheimer’s disease and controls.Superficial vessel density(pooled SMD=-0.42,95% CI:-0.68 to-0.17,P=0.0001) and deep vessel density(pooled SMD=-0.46,95% CI:-0.75 to-0.18,P=0.001) were found to be thinner in Alzheimer’s disease patients whereas the foveal avascular zone(SMD=0.84,95% CI:0.17-1.51,P=0.01) was larger in controls.Vascular density and thickness of various retinal laye rs were decreased in Alzheimer’s disease patients compared to controls.Our results provide evidence for optical coherence tomography technology having the potential to detect retinal and microvascular changes in patients diagnosed with Alzheimer’s disease and aid in monito ring and early diagnosis methods.展开更多
AIM:To investigate the postprandial response of bone turnover markers in patients with Crohn’s disease(CD).METHODS:Fifty nine patients with CD aged 38±14years,and 45 healthy individuals matched for age and body ...AIM:To investigate the postprandial response of bone turnover markers in patients with Crohn’s disease(CD).METHODS:Fifty nine patients with CD aged 38±14years,and 45 healthy individuals matched for age and body mass index were included in the study.All participants underwent an oral glucose tolerance test(OGTT)after an overnight fast and serum levels of the bone resorption marker C-terminal crosslinking telopeptide of type?Ⅰ?collagen(CTX-Ⅰ)and the bone formation marker procollagen type?Ⅰ?N propeptide were measured.Activity of the disease was assessed by calculation of the Crohn’s disease activity index(CDAI).RESULTS:Serum CTX-I was significantly higher in patients compared to controls(CTX-I:453±21 pg/mL vs 365±25 pg/mL,P=0.008),and values were significantly correlated with the activity of the disease(r=0.435,P=0.001).Results from OGTT-induced suppression of CTX-I showed two different trends.Patients with more active disease(assessed as CDAI>150)had a more excessive suppression of CTX-I compared to controls(55%vs 43%P<0.001),while patients on remission(assessed as CDAI<150)demonstrated an attenuated CTX-I suppression(30%vs 43%P<0.001).In line with this,CTX-I suppression after oral glucose load was significantly correlated with the activity of the disease(r=0.913,P<0.001).CONCLUSION:The physiological skeletal response of postprandial suppression of bone resorption is maintained in patients with CD and is strongly dependent to the activity of the disease.展开更多
Parkinson's disease(PD)is a chronic progressive neurodegenerative disease.Deep brain stimulation(DBS)is an effective treatment for patients with advanced PD.There are many DBS targets for PD,including subthalamic ...Parkinson's disease(PD)is a chronic progressive neurodegenerative disease.Deep brain stimulation(DBS)is an effective treatment for patients with advanced PD.There are many DBS targets for PD,including subthalamic nucleus(STN),globus pallidus(GPi),meso-ventral thalamic nucleus(VIM),pontine peduncle nucleus(PPN),posterior subthalamic region(PSA)and zonation of undetermined zone(ZI).This paper summarizes the efficacy of each target in the treatment of PD with DBS,not only makes a systematic analysis and comparison of motor symptoms,but also makes a detailed description of the efficacy of non-motor symptoms,so as to provide a personalized treatment basis for PD patients to select appropriate target targets in DBS.展开更多
Many cases of foot-and-mouth disease (FMD) are reported every year in Benin. In order to elucidate the epidemiology of this disease, a space-time analysis was carried out in all the 77 municipalities of the country ai...Many cases of foot-and-mouth disease (FMD) are reported every year in Benin. In order to elucidate the epidemiology of this disease, a space-time analysis was carried out in all the 77 municipalities of the country aiming to identify high risk areas as well as risk factors such as season and transhumance on the period of 2005 to 2014. Data were collected retrospectively from the Directory of Animal Production of Benin. The method of Kulldorff was used with the software SaTScanTM for the space-time analysis while a script was designed in the software R to generate new sizes with three different models of transhumance. From 2005 to 2014, 434 foci were recorded. Many outbreaks occurred in August, September and October. This period corresponds to the small rainy season in the South and the rainy season of the North. The municipality of Parakou was regarded as the source FMD outbreaks in Benin because it hosts one of the largest livestock markets in the country and many rivers. It was the municipality at the highest risk. The other municipalities at risk were Nikki, Pèrèrè and Kalaléas well as Karimama (hosting the national parkW), Kouandé and Toucountouna located nearby Pendjari’s national park. This study revealed that the space-time configuration is real and the main factors of persistence and dissemination of FMD virus were national parks, classified forests and the livestock market of Parakou all located in the North. The variation of the number of cattle due to their transhumance from the North to the South did not influence the zones at risk. Therefore, Northern Benin is probably at high risk of FMD.展开更多
基金Supported by the National Natural Science Foundation of China,No.81471983the Key Research and Development Plan Project of Anhui Province,Department of Science and Technology 2019,No.201904a07020043+1 种基金the Key Project of Natural Science Research in the Universities of Anhui Provence,No.KJ2017A202the Research Fund Project of Anhui Institute of Transforming Medicine,No.2017zhyx04
文摘BACKGROUND Inflammatory bowel disease(IBD) is characterized by chronic and non-specific inflammation of the intestinal mucosa and mainly includes ulcerative colitis and Crohn’s disease.AIM To explore the beneficial effect of Toxo ROP16Ⅰ/Ⅲ-induced M2 phynotype macrophages in homeostasis of IBDs through downregulation of M1 inflammatory cells.METHODS RAW264.7 macrophages stimulated by lipopolysaccharide(LPS)(M1 cells) were co-cultured with Caco-2 cells as an inflammatory model of IBD in vitro.The expression of Toxo ROP16Ⅰ/Ⅲ was observed in RAW264.7 macrophages that were transfected with p EGFP-rop16Ⅰ/Ⅲ.The phenotypes of M2 and M1 macrophage cells were assessed by quantitative real-time reverse transcriptase polymerase chain reaction and the expression of tumor necrosis factor(TNF)-α,interleukin(IL)-1β,IL-6,transforming growth factor(TGF)-β1,IL-10,inducible nitric oxide synthase(i NOS),and arginase-1(Arg-1) was detected.The expression of i NOS,Arg-1,signal transducer and activator of transcription 3(Stat3),p-Stat3,Stat6,pStat6,programmed death ligand-2(PD-L2),caspase-3,-8,and-9 was analyzed by Western blotting,and Griess assays were performed to detect nitric oxide(NO).TNF-α,IL-1β,IL-6,TGF-β1,and IL-10 expression in the supernatants was detected by enzyme-linked immunosorbent assay,and Caco-2 cell apoptosis was determined by flow cytometry after mixing M1 cells with M2 cells in a Caco-2 cell co-culture system.RESULTS M1 cells exhibited significantly increased production of i NOS,NO,TNF-α,IL-1β,and IL-6,while Toxo ROP16Ⅰ/Ⅲ induced macrophage bias to M2 cells in vitro,showing increased expression of Arg-1,IL-10 and TGF-β1 and elevated production of p-Stat3 and p-Stat6.The mixed M1 and M2 cell culture induced by Toxo ROP16 Ⅰ/Ⅲ exhibited decreased production of NO and i NOS and upregulated expression of Arg-1 and PD-L2.Accordingly,Caco-2 cells became apoptotic,and apoptosis-associated proteins such as caspase-3,-8 and-9 were dampened during co-culture of M1 and M2 cells.Flow cytometry analysis showed that co-culture of M1 cells with Caco-2 cells facilitated the apoptosis of Caco-2 cells,but co-culture of M1 and M2 cells alleviated Caco-2 cell apoptosis.CONCLUSION Toxo ROP16 Ⅰ/Ⅲ-induced M2 macrophages inhibited apoptosis of Caco-2 cells caused by M1 macrophages.This finding may help gain a better understanding of the underlying mechanism and represent a promising therapeutic strategy for IBDs.
文摘Background A newer generation bioresorbable scaffold Firesorb(MicroP ort,Shanghai,China),with thinner-strut(100~125μm),is constructed from a PLLA backbone abluminally coated with a PDLLA layer eluting sirolimus.FUTURE-I study intended to assess the feasibility,preliminary safety and effectiveness of the Firesorb BRS in patients with single de novo coronary artery lesions.We evaluated the long-term performance of the new generation BRS with thinner struts serially(post-procedure,at 6 months,1,2 year)after implantation.
文摘AIM:To evaluate the alterations of the retinal microvasculature and foveal avascular zone in patients with Parkinson’s disease(PD)using optical coherence tomography angiography(OCT-A).METHODS:A retrospective study of PD patients examined in the Ophthalmology Department of the General Hospital of Athens,“Georgios Gennimatas”from March 2021 to March 2022 was conducted.Totally 44 patients with PD were included and 18 healthy controls were examined,hence a total of 124 eyes were enrolled in the study.The foveal and parafoveal superficial and deep capillary plexus vascular density(fSCP-VD,fDCP-VD,pSCP-VD,pDCP-CD)and foveal avascular zone(FAZ)were quantified with OCTA.Optical coherence tomography(OCT)was used to measure macular thickness.Our statistical analysis was conducted by using a mixed effect linear regression model.RESULTS:After adjustment for age and gender,the mean parafoveal superficial capillary plexus vascular density(pSCP-VD)and mean parafoveal deep capillary plexus vascular density(pDCP-VD)were significantly decreased in individuals with PD(P<0.001 in both)by-2.35(95%CI-3.3,-1.45)and-7.5(95%CI-10.4,-4.6)respectively.fSCP-VD and fDCP-VD didn’t approach statistical significance.The FAZ area and perimeter were significantly decreased(P<0.001 in both)by-0.1 mm^(2)(95%CI-0.13,-0.07)and-0.49 mm^(2)(95%CI-0.66,-0.32)respectively.Circularity didn’t approach statistical significance.Central retinal thickness(CRT)was significantly decreased in individuals with PD(P<0.001)by-23.1μm(95%CI-30.2,-16)and temporal retinal thickness(TRT)was decreased(P=0.025)by-11μm(95%CI-22,-1.5)while nasal retinal thickness(NRT)only approached statistical significance(P=0.066).CONCLUSION:The mean pSCP-VD,pDCP-VD,CRT and TRT are significantly decreased and FAZ is altered in individuals with PD.These findings can be potentially used as biomarkers for the diagnosis and evaluation of early PD.
基金Supported by National Natural Science Foundation of China(30630048)National Science and Technology Support Program(2006BAD06A03)
文摘Newcastle disease( ND) is one of the most serious infectious diseases that infect the poultry industry.There is only one serotype of Newcastle disease virus( NDV),but NDVs can be divided into two distinct classes( class Ⅰ,and class Ⅱ) according to their genetic relationship.To develop a method for rapid quantitative detection of class Ⅰ NDV,a pair of primers and a TaqM an probe were designed and synthesized according to the conservative sequence of NP gene of class Ⅰ NDV.The positive recombinant plasmid harboring NP gene of JS-18-05 isolate was used as a positive template to establish the standard curve.A real-time fluorescent quantitative RT-PCR method was established for rapid detection of class Ⅰ NDV with strong specificity,high sensitivity and good repeatability.The established method exhibited a good linear relationship within the concentration of 102 to 108 copies of NDV,by which 1 μl of 10 copy of NDV nucleic acid could be detected in the initial template.Compared with conventional virus isolation methods,the established method had similar sensitivity and led to the same results in detecting33 class Ⅰ,class Ⅱ NDV isolates.The study provided the basis for rapid quantitative detection of class Ⅰ NDVs and further clarification of their pathogenicity and pathogenic mechanism in poultry.
文摘[Objective]The model of regionalization management of specific equine disease-free zone were analysed and discussed. [Methods]International animal epidemics regionalization management experience and specific equine disease-free zone establishment were analysed and discussed based on the State and OIE principles. [Results]The regionalization management of specific equine disease-free zone with county administrative regions level of international recognition was established first in China,combined with the region's geographical barrier and animal health. [Conclusion]The aim is to to provide experience and reference for other areas to establish specific disease-free zone.
基金the help and strong support of Departments the Chinese Animal Health and Epidemic Center,Guangdong Rsearch Institute of Entomology,Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences,the Agriculture,Fisheries and Conservation Department of Hong Kong and the Hong Kong Jockey Club etc.,during the entomophily and wild animals prevention and control in the disease-free zone of Guangzhou Asian Games
文摘[ Objective] In order to construct the specific equine disease-free zone of of the Guangzhou Asian Games, to ensure that the equestrian events of Guangzhou Asian Games be smoothly held. [Methods] The species, quantities, distribution and seasonal variations of insects and wild animals in related zones were investigated from 2008 to 2010, and the collected samples of the insects and wild animals were tested in laboratory for related equine diseases. [Results] The investigations indicated that there were some mosquitoes, flies, horseflies, punkies, ticks, bats, wild birds and wild bears in equastrianism venue and peripheral regions of disease-free zone of the Guangzhou Asian Games, the laboratory results of Japa- nese encephalitis, vesicular stomatitis, Nipah virus disease, West Nile fever, and Trypanosomiasis evansi, were all negative. According to the in- vestigations and test results, the risk assessments of insect and wild animal vectors in the prevalence of related equine diseases were made to con- firm that the risk was relatively low or very low, and comprehensive prevention and control measures with prevention as major measures and insecti- cides application and environment managements as supplementary means were made on the basis of the risk assessment conclusions. [ Conclu- sions] This research has laid a solid foundation for the successful building of the first specific equine disease-free zone in our country, ensured the smooth holding of the 16th equastdan competition in Guangzhou Asian Games.
文摘It is being increasingly recognized that patients with liver disease develop bone loss that can be severe enough to lead to atraumatic fractures and thus markedly diminish life quality and expectancy. The estimated prevalence for liver-related osteoporosis is between 20-420/100000 of the general population, and fractures between 60-880/100000. It should be kept in mind that up to 40% of patients with chronic liver disease may experience a fracture. The pathogenic mediators include fibronectin, insulin like growth factor-I, and various cytokines, but decreased vitamin D and/or treatment with corticosteroids contribute to worsening bone health. Despite the advances in bone biology that have shed some light on the pathogenesis of this bone loss, treatment options remain nonspecific and tightly linked to treatments of other forms of osteoporosis. Thus, treatment should include calcium and vitamin D supplementation in all patients with chronic liver disease. Therapy with bisphosphonates should be considered, especially in patients receiving corticosteroids. This review focuses on the prevalence of this entity as well as the evidence available with regard to the pathogenesis of bone loss in liver disease, the diagnostic steps required in all patients, and the therapeutic options available.
文摘Cutaneous Leishmaniasis (CL) is a severe health problem and a parasitic disease on human dermal and widely pervades tropical and subtropical developing counties. The study is mainly focused on Geographic Information System (GIS) based Situational Analysis (SA). The clinically recorded 394 CL patients’ information was obtained from the District General Hospital of Polonnaruwa (DGHP) for 2017 and 2018. The spatial distribution of these patients was collected using Global Positing System (GPS). Moran’s I Index spatial autocorrelation technique and Getis-Ord Gi were used to identify the study site’s hot spot and cold spot areas. More than 75% of the CL patients’ population were highly involved with agricultural activities, and they are the highly exposed group of the CL in the study area. Also, 75% of the CL population were men, and the highly vulnerable age group was 35 - 39 men and 40 - 44 women. The generated Moran’s I Index indicates 0.0321, representing a randomly distributed pattern of CL patients over the District, and the Getis-Ord Gi Z Score value was >1.96 (p < 0.05). It is revealed that, during and in the post-harvesting periods of paddy cultivation, farmers are highly exposed to sandflies becoming CL patients. Due to this situation, the researchers observed that the highest number of patients have reported in May of both years and the infection period is two to four weeks earlier than the reported month. Hence to prevent the disease spread, it is essential to implement an awareness program regarding sandflies’ behaviour and CLD.
文摘The distribution of key diseases of coffee particularly the Coffee berry disease (CBD) and Coffee leaf rust (CLR) in Kenya depended on coffee growing agro-ecological zones, which have varied climatic conditions. Under the changing climate, there has been an observed shift in their altitudinal distribution. To ascertain whether these diseases have shifted in their distribution, an extensive field survey covering 120 coffee farmers/households in all the coffee growing agro ecological zones was conducted. The survey established four coffee diseases; -viz. Coffee berry disease, Coffee leaf rust, Fusarium root disease (FRD) and Bacterial blight of coffee (BBC) as of economic importance to the farming community. The CBD, CLR and FRD were widely distributed in all coffee growing agro ecological zones. Of the four diseases, the CBD (65%) and CLR (63.3%) were most common as reported by the farmers, however these diseases dominated in their respective agro ecological zones; CBD (72.2%) in Upper Midland 1 (UM1) and CLR (75.0%) in Upper Midland 2 (UM2). Both diseases equally infected coffee farms (69.2%) in main coffee zone (UM2). According to the survey said diseases have increased their altitudinal range, a trend that will increase diseases pressure in coffee growing areas.
基金National Health and Medical Research Council (NHMRC) Australia (to VG)。
文摘Examining the retinal tissue has the potential to provide a unique method and technique to quantify Alzheimer’s disease-related changes in participants at various stages of the disease.In this metaanalysis,we aimed to investigate the association of various optical coherence tomography parameters with Alzheimer’s disease and whether retinal measurements can be used to diffe rentiate between Alzheimer’s disease and control subjects.Scientific databases including Google Schola r,Web of Science,and PubMed were systematically searched for published articles that evaluated retinal nerve fiber layer thickness and retinal microvascular network in Alzheimer’s disease and control subjects.Seventy-three studies(5850 participants,including 2249 Alzheimer’s disease patients and 3601controls) were included in this meta-analysis.Relative to controls,Alzheimer’s disease patients had a significantly lower global retinal nerve fiber layer thickness(standardized mean difference [SMD]=-0.79,95% confidence intervals [CI]:-1.03 to-0.54,P <0.00001) as well as each quadrant being thinner in Alzheimer’s disease versus controls.Regarding macular paramete rs,values measured by optical coherence tomography were significantly lower in Alzheimer’s disease than controls for macular thickness(pooled SMD:-0.44,95% CI:-0.67 to-0.20,P=0.0003),foveal thickness(pooled SMD=-0.39,95% CI:-0.58 to-0.19,P <0.0001),ganglion cell inner plexiform layer(SMD=-1.26,95% CI:-2.24 to-0.27,P=0.01) and macular volume(pooled SMD=-0.41,95% CI-0.76 to-0.07,P=0.02).Analysis using optical coherence tomography angiography parameters revealed mixed results between Alzheimer’s disease and controls.Superficial vessel density(pooled SMD=-0.42,95% CI:-0.68 to-0.17,P=0.0001) and deep vessel density(pooled SMD=-0.46,95% CI:-0.75 to-0.18,P=0.001) were found to be thinner in Alzheimer’s disease patients whereas the foveal avascular zone(SMD=0.84,95% CI:0.17-1.51,P=0.01) was larger in controls.Vascular density and thickness of various retinal laye rs were decreased in Alzheimer’s disease patients compared to controls.Our results provide evidence for optical coherence tomography technology having the potential to detect retinal and microvascular changes in patients diagnosed with Alzheimer’s disease and aid in monito ring and early diagnosis methods.
文摘AIM:To investigate the postprandial response of bone turnover markers in patients with Crohn’s disease(CD).METHODS:Fifty nine patients with CD aged 38±14years,and 45 healthy individuals matched for age and body mass index were included in the study.All participants underwent an oral glucose tolerance test(OGTT)after an overnight fast and serum levels of the bone resorption marker C-terminal crosslinking telopeptide of type?Ⅰ?collagen(CTX-Ⅰ)and the bone formation marker procollagen type?Ⅰ?N propeptide were measured.Activity of the disease was assessed by calculation of the Crohn’s disease activity index(CDAI).RESULTS:Serum CTX-I was significantly higher in patients compared to controls(CTX-I:453±21 pg/mL vs 365±25 pg/mL,P=0.008),and values were significantly correlated with the activity of the disease(r=0.435,P=0.001).Results from OGTT-induced suppression of CTX-I showed two different trends.Patients with more active disease(assessed as CDAI>150)had a more excessive suppression of CTX-I compared to controls(55%vs 43%P<0.001),while patients on remission(assessed as CDAI<150)demonstrated an attenuated CTX-I suppression(30%vs 43%P<0.001).In line with this,CTX-I suppression after oral glucose load was significantly correlated with the activity of the disease(r=0.913,P<0.001).CONCLUSION:The physiological skeletal response of postprandial suppression of bone resorption is maintained in patients with CD and is strongly dependent to the activity of the disease.
基金Natural Science Foundation of Hainan Province (No.821RC682)。
文摘Parkinson's disease(PD)is a chronic progressive neurodegenerative disease.Deep brain stimulation(DBS)is an effective treatment for patients with advanced PD.There are many DBS targets for PD,including subthalamic nucleus(STN),globus pallidus(GPi),meso-ventral thalamic nucleus(VIM),pontine peduncle nucleus(PPN),posterior subthalamic region(PSA)and zonation of undetermined zone(ZI).This paper summarizes the efficacy of each target in the treatment of PD with DBS,not only makes a systematic analysis and comparison of motor symptoms,but also makes a detailed description of the efficacy of non-motor symptoms,so as to provide a personalized treatment basis for PD patients to select appropriate target targets in DBS.
文摘Many cases of foot-and-mouth disease (FMD) are reported every year in Benin. In order to elucidate the epidemiology of this disease, a space-time analysis was carried out in all the 77 municipalities of the country aiming to identify high risk areas as well as risk factors such as season and transhumance on the period of 2005 to 2014. Data were collected retrospectively from the Directory of Animal Production of Benin. The method of Kulldorff was used with the software SaTScanTM for the space-time analysis while a script was designed in the software R to generate new sizes with three different models of transhumance. From 2005 to 2014, 434 foci were recorded. Many outbreaks occurred in August, September and October. This period corresponds to the small rainy season in the South and the rainy season of the North. The municipality of Parakou was regarded as the source FMD outbreaks in Benin because it hosts one of the largest livestock markets in the country and many rivers. It was the municipality at the highest risk. The other municipalities at risk were Nikki, Pèrèrè and Kalaléas well as Karimama (hosting the national parkW), Kouandé and Toucountouna located nearby Pendjari’s national park. This study revealed that the space-time configuration is real and the main factors of persistence and dissemination of FMD virus were national parks, classified forests and the livestock market of Parakou all located in the North. The variation of the number of cattle due to their transhumance from the North to the South did not influence the zones at risk. Therefore, Northern Benin is probably at high risk of FMD.