European Journal of Histochemistry最新文献

{"title":"Is mastocytic colitis a specific clinical-pathological entity?","authors":"Filippo Vernia,&nbsp;Tiziana Tatti,&nbsp;Stefano Necozione,&nbsp;Annalisa Capannolo,&nbsp;Nicola Cesaro,&nbsp;Marco Magistroni,&nbsp;Marco Valvano,&nbsp;Simona Pompili,&nbsp;Roberta Sferra,&nbsp;Antonella Vetuschi,&nbsp;Giovanni Latella","doi":"10.4081/ejh.2022.3499","DOIUrl":"https://doi.org/10.4081/ejh.2022.3499","url":null,"abstract":"<p><p>The number of intestinal mast cells (MC) is increased in several types of colitis, but the mucosa of patients with chronic non-bloody diarrhea has not been studied. The current study sought to determine the relationship between MC counts and degranulation and the severity of symptoms in patients with chronic loose stools. Following a negative laboratory workup for the most common causes of chronic diarrhea, patients with chronic non-bloody loose stools were included in the study. Patients with macroscopic evidence of inflammation or organic disease were excluded after endoscopy with biopsies. Biopsies from the 179 patients in the study were stained with hematoxylin and eosin and anti-CD117 c-kit antibodies. Immunohistochemistry was used to assess the degree of MC degranulation. Out of the 179 patients, 128 had normal histologic findings suggestive of irritable bowel syndrome and were used as controls. Twenty-four presented with abnormally high MC counts (≥40 MC x HPF), 23 with ≥20 intraepithelial lymphocytes x HPF suggesting lymphocytic colitis, and 4 had both (≥40 MC and ≥20 intraepithelial lymphocytes x HPF). In the patients with high MC counts, figures were significantly higher in the right colon versus the left colon (p=0.016), but degranulation did not differ in the right versus the left colon (p=0.125). No age or sex-related difference was observed (p=0.527 and p=0.859 respectively). The prevalence of abdominal pain and bloating did not differ in the three groups (p=0.959 and p=0.140, respectively). Patients with lymphocytic colitis (p=0.008) and those with high MC counts (p=0.025) had significantly higher evacuation rates compared to controls. There was no difference between these two groups (p=0.831). Mast cell degranulation was not associated with the number of evacuations, abdominal pain, or bloating (p=0.51; p=0.41; p=0.42, respectively). The finding that a significantly higher number of evacuations was linked to increased MC in the colonic mucosa of a subset of patients with otherwise normal laboratory and endoscopic findings suggests that \"mastocytic colitis\" may be a new clinical-pathological entity responsible for chronic non-bloody diarrhea. Prospective studies with a larger number of patients, as well as endoscopic and histological follow-up, are needed to confirm this hypothesis.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e2/1d/ejh-66-4-3499.PMC9761410.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10398449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the interactions between nanoparticles and biological barriers in vitro: a new challenge for microscopy techniques in nanomedicine.","authors":"Flavia Carton,&nbsp;Manuela Malatesta","doi":"10.4081/ejh.2022.3603","DOIUrl":"https://doi.org/10.4081/ejh.2022.3603","url":null,"abstract":"<p><p>Nanoconstructs intended to be used as biomedical tool must be assessed for their capability to cross biological barriers. However, studying in vivo the permeability of biological barriers to nanoparticles is quite difficult due to the many structural and functional factors involved. Therefore, the in vitro modeling of biological barriers -2D cell monocultures, 2D/3D cell co-cultures, microfluidic devices- is gaining more and more relevance in nanomedical research. Microscopy techniques play a crucial role in these studies, as they allow both visualizing nanoparticles inside the biological barrier and evaluating their impact on the barrier components. This paper provides an overview of the various microscopical approaches used to investigate nanoparticle translocation through in vitro biological barrier models. The high number of scientific articles reported highlights the great contribution of the morphological and histochemical approach to the knowledge of the dynamic interactions between nanoconstructs and the living environment.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 4","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/61/2e/ejh-66-4-3603.PMC9728129.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10737419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proceedings of the 32nd National Conference of the Italian Group for the Study of Neuromorphology “Gruppo Italiano per lo Studio della Neuromorfologia” G.I.S.N., Naples, November 25-26, 2022","authors":"Conference Chair: Michele Papa","doi":"10.4081/ejh.2022.3619","DOIUrl":"https://doi.org/10.4081/ejh.2022.3619","url":null,"abstract":"Proceedings of the 32nd National Conference of the Italian Group for the Study of Neuromorphology “Gruppo Italiano per lo Studio della Neuromorfologia” G.I.S.N., Naples, November 25-26, 2022","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"1 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44468634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcription factor nuclear factor erythroid 2 p45-related factor 2 (NRF2) ameliorates sepsis-associated acute kidney injury by maintaining mitochondrial homeostasis and improving the mitochondrial function.","authors":"Zhijiang Chen,&nbsp;Huili Wang,&nbsp;Bin Hu,&nbsp;Xinxin Chen,&nbsp;Meiyu Zheng,&nbsp;Lili Liang,&nbsp;Juanjuan Lyu,&nbsp;Qiyi Zeng","doi":"10.4081/ejh.2022.3412","DOIUrl":"https://doi.org/10.4081/ejh.2022.3412","url":null,"abstract":"<p><p>Mitochondrial dysfunction has a role in sepsis-associated acute kidney injury (S-AKI), so the restoration of normal mitochondrial homeostasis may be an effective treatment strategy. Transcription factor nuclear factor erythroid 2 p45-related factor 2 (NRF2) is a main regulator of cell-redox homeostasis, and recent studies reported that NRF2 activation helped to preserve mitochondrial morphology and function under conditions of stress. However, the role of NRF2 in the process of S-AKI is still not well understood. The present study investigated whether NRF2 regulates mitochondrial homeostasis and influences mitochondrial function in S-AKI. We demonstrated activation of NRF2 in an in vitro model: lipopolysaccharide (LPS) challenge of ductal epithelial cells of rat renal tubules (NRK-52e cells), and an in vivo model: cecal ligation and puncture (CLP) of rats. Over-expression of NRF2 attenuated oxidative stress, apoptosis, and the inflammatory response; enhanced mitophagy and mitochondrial biogenesis; and mitigated mitochondrial damage in the in vitro model. In vivo experiments showed that rats treated with an NRF2 agonist had higher adenosine triphosphate (ATP) levels, lower blood urea nitrogen and creatinine levels, fewer renal histopathological changes, and higher expression of mitophagy-related proteins [PTEN-induced putative kinase 1 (PINK1), parkin RBR E3 ubiquitin protein ligase (PRKN), microtubule-associated protein 1 light chain 3 II (LC3 II)] and mitochondrial biogenesis-related proteins [peroxisome proliferator-activated receptor γ coactivator-1 (PGC-1α) and mitochondrial transcription factor A (TFAM)]. Electron microscopy of kidney tissues showed that mitochondrial damage was alleviated by treatment with an NRF2 agonist, and the opposite response occurred upon treatment with an NRF2 antagonist. Overall, our findings suggest that mitochondria have an important role in the pathogenesis of S-AKI, and that NRF2 activation restored mitochondrial homeostasis and function in the presence of this disease. This mitochondrial pathway has the potential to be a novel therapeutic target for the treatment of S-AKI.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e5/bc/ejh-66-3-3412.PMC9251609.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10602167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proceedings of the 67th Congress of the GEI-Italian Society of Development and Cell Biology (GEI-SIBSC) - Gargnano, 5-7 June 2022","authors":"The CIBIS II Scientific Committee","doi":"10.4081/ejh.2022.3435","DOIUrl":"https://doi.org/10.4081/ejh.2022.3435","url":null,"abstract":"","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47744508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal changes in the expression of PACAP, VPAC1, VPAC2, PAC1 and testicular activity in the testis of the muskrat (<em>Ondatra zibethicus</em>).","authors":"Zeqi Tang,&nbsp;Xiaojie Yuan,&nbsp;Yuming Bai,&nbsp;Yiming Guo,&nbsp;Haolin Zhang,&nbsp;Yingying Han,&nbsp;Zhengrong Yuan,&nbsp;Qiang Weng","doi":"10.4081/ejh.2022.3398","DOIUrl":"https://doi.org/10.4081/ejh.2022.3398","url":null,"abstract":"<p><p>Pituitary adenylate cyclase-activating polypeptide (PACAP) plays an important role in the steroidogenesis and spermatogenesis in the testis through its receptors PAC1, VPAC1, and VPAC2. In this study, we investigated the seasonal expressions of PACAP, PAC1, VPAC1, VPAC2, luteinizing hormone receptor (LHR), follicle stimulating hormone receptor (FSHR), steroidogenic acute regulatory protein (StAR), 3β-hydroxysteroid dehydrogenase (3β-HSD), and CYP17A1 in the testis of the male muskrat during the breeding season and the non-breeding season. Histologically, we found the presence of Leydig cells, Sertoli cells and all kinds of germ cells in the testis during the breeding season but only Leydig cells, Sertoli cells, spermatogonia and primary spermatocyte during the non-breeding season. The immunohistochemical localizations of PACAP and VPAC1 were identified in the Leydig cells, spermatogonia and spermatozoa during the breeding season while only in Leydig cells and spermatogonia during the non-breeding season, and PAC1 and VPAC2 were localized in the Leydig cells in both seasons, in which LHR, StAR, 3β-HSD and CYP17A1 were also expressed. Meanwhile, protein and mRNA expression levels of PACAP, PAC1, VPAC1, VPAC2, LHR, FSHR, StAR, 3β-HSD and CYP17A1 in the testis during the breeding season were significantly higher than those during the non-breeding season. These results suggested that PACAP may involve in the regulation of, steroidogenesis and spermatogenesis via an endocrine, autocrine or paracrine manner in the testis of the muskrat.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2a/f5/ejh-66-2-3398.PMC9119148.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10615137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How to stain nucleic acids and proteins in Miller spreads.","authors":"Lorena Zannino,&nbsp;Marco Biggiogera","doi":"10.4081/ejh.2022.3364","DOIUrl":"https://doi.org/10.4081/ejh.2022.3364","url":null,"abstract":"<p><p>The spread technique proposed by Miller and Beatty in 1969 allowed for the first time the visualization at transmission electron microscopy of nucleic acids and chromatin in an isolated and distended conformation. The final step of staining the spread chromatin is of critical importance because it can strongly influence the interpretation of the results. We evaluated different staining techniques and the most part of them provided a good result. Specifically, well contrasted micrographs were obtained when staining with H3PW12O40 (PTA), as originally proposed by Miller and Beatty, and with two alternatives proposed here: uranyl acetate or terbium citrate staining. Quite good contrast of the spread DNA could be achieved also by using Osmium Ammine; while no or few contrast of nucleic acids was observed by staining with KMnO₄ and H3PMo12O40 (PMA) respectively.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/1e/a3/ejh-66-1-3364.PMC8883610.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39960611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High expression of both desmoplastic stroma and epithelial to mesenchymal transition markers associate with shorter survival in pancreatic ductal adenocarcinoma.","authors":"Damián Sánchez-Ramírez, Rafael Medrano-Guzmán, Fernando Candanedo-González, Jazmín De Anda-González, Luis Enrique García-Rios, Vadim Pérez-Koldenkova, Marcos Gutiérrez-de la Barrera, Sara Rodríguez-Enríquez, Marco Velasco-Velázquez, Silvia Cecilia Pacheco-Velázquez, Patricia Piña-Sánchez, Héctor Mayani, Alejandro Gómez-Delgado, Alberto Monroy-García, Ana Karen Martínez-Lara, Juan José Montesinos","doi":"10.4081/ejh.2022.3360","DOIUrl":"10.4081/ejh.2022.3360","url":null,"abstract":"<p><p>Desmoplastic stroma (DS) and the epithelial-to-mesenchymal transition (EMT) play a key role in pancreatic ductal adenocarcinoma (PDAC) progression. To date, however, the combined expression of DS and EMT markers, and their association with variations in survival within each clinical stage and degree of tumor differentiation is unknown. The purpose of this study was to investigate the association between expression of DS and EMT markers and survival variability in patients diagnosed with PDAC. We examined the expression levels of DS markers alpha smooth muscle actin (α-SMA), fibronectin, and vimentin, and the EMT markers epithelial cell adhesion molecule (EPCAM), pan-cytokeratin, and vimentin, by immunohistochemistry using a tissue microarray of a retrospective cohort of 25 patients with PDAC. The results were examined for association with survival by clinical stage and by degree of tumor differentiation. High DS markers expression -α-SMA, fibronectin, and vimentin- was associated with decreased survival at intermediate and advanced clinical stages (p=0.006-0.03), as well as with both poorly and moderately differentiated tumor grades (p=0.01-0.02). Interestingly, the same pattern was observed for EMT markers, i.e., EPCAM, pan-cytokeratin, and vimentin (p=0.00008-0.03). High expression of DS and EMT markers within each clinical stage and degree of tumor differentiation was associated with lower PDAC survival. Evaluation of these markers may have a prognostic impact on survival time variation in patients with PDAC.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/68/7b/ejh-66-1-3360.PMC8883614.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39931599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stretching prior to resistance training promotes adaptations on the postsynaptic region in different myofiber types.","authors":"Carolina Dos Santos Jacob,&nbsp;Gabriela Klein Barbosa,&nbsp;Mariana Pasquini Rodrigues,&nbsp;Jurandyr Pimentel Neto,&nbsp;Lara Caetano Rocha,&nbsp;Adriano Polican Ciena","doi":"10.4081/ejh.2022.3356","DOIUrl":"https://doi.org/10.4081/ejh.2022.3356","url":null,"abstract":"<p><p>The morphology of the neuromuscular junction adapts according to changes in its pattern of use, especially at the postsynaptic region according to the myofibrillar type and physical exercise. This investigation revealed the morphological adaptations of the postsynaptic region after static stretching, resistance training, and their association in adult male Wistar rats. We processed the soleus and plantaris muscles for histochemical (muscle fibers) and postsynaptic region imaging techniques. We observed muscle hypertrophy in both groups submitted to resistance training, even though the cross-section area is larger when there is no previous static stretching. The soleus postsynaptic region revealed higher compactness and fragmentation index in the combined exercise. The resistance training promoted higher adaptations in the postsynaptic area of plantaris; moreover, the previous static stretching decreased this area. In conclusion, the neuromuscular system's components responded according to the myofiber type even though it is the same physical exercise. Besides, static stretching (isolated or combined) plays a crucial role in neuromuscular adaptations.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/69/0c/ejh-66-1-3356.PMC8875788.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39923372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of miR-939 and miR-376A on ulcerative colitis using a decoy strategy to inhibit NF-κB and NFAT expression.","authors":"Yongwei Lin,&nbsp;Zhipeng Zhou,&nbsp;Lang Xie,&nbsp;Yongsheng Huang,&nbsp;Zhenghua Qiu,&nbsp;Lili Ye,&nbsp;Chunhui Cui","doi":"10.4081/ejh.2022.3316","DOIUrl":"https://doi.org/10.4081/ejh.2022.3316","url":null,"abstract":"<p><p>The aim of this study was to explore the effects of miR-939 and miR-376A on the pathogenesis of ulcerative colitis (UC) by using a decoy strategy to regulate the expression of nuclear transcription factor kappa B (NF-κB) and nuclear factor of activated T cells (NFAT). Such strategies represent a potential novel treatment for UC. Quantitative polymerase chain reaction (qPCR) analysis was used to detect the differences between the expression of miR-939, miR-376a, NF-κB, NFAT in the tissue samples from the resting and active stages of UC and healthy controls, and analyzed the correlation. The electrophoretic mobility shift assay was used to validate the ability of miRNAs to bind to NF-κB and NFAT. The expression of components of the intestinal barrier in UC and changes in apoptosis-related factors were examined by western blotting, qPCR, and immunofluorescence. After a dextran sulfate sodium (DSS)-induced mouse model of UC was established, the morphological changes in the colonic tissues of mice, the changes in serum inflammatory factors, and the changes in urine protein or urine leukocytes, liver enzymes, and prothrombin time were measured to examine intestinal permeability. The expression of miR-939 and miR-376a in human UC tissue was significantly lower than that in the normal control tissue, and was negatively correlated with the expression of NF-κB and NFAT. miR-939 and miR-376a decoy strategies resulted in a beneficial increase in the expression of claudins, occludins, and ZO-1 protein and inhibited apoptosis in intestinal epithelial cells. The disease activity index of the UC model group was significantly higher than that of the normal control group. The expression of inflammatory factors in the decoy group was higher than that in the UC model group. Therefore, from the experimental results, it can be concluded that using miR-939 and miR-376a to trap NF-κB and NFAT inhibits the activation of transcription factors NF-κB and NFAT, which in turn inhibits the expression of inflammatory factors and results in partial recovery of the intestinal barrier in UC. The decoy strategy inhibited apoptosis in the target cells and had a therapeutic effect in the mice model of UC. This study provides new ideas for the development of future clinical therapies for UC.</p>","PeriodicalId":50487,"journal":{"name":"European Journal of Histochemistry","volume":"66 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/21/1f/ejh-66-1-3316.PMC8875791.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39923371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}