Intestinal Research最新文献

{"title":"Depressed lesion detected during surveillance colonoscopy in a patient with ulcerative colitis.","authors":"Keijiro Numa, Kazuki Kakimoto, Noboru Mizuta, Naohiko Kinoshita, Kei Nakazawa, Ryoji Koshiba, Yuki Hirata, Ken Kawakami, Takako Miyazaki, Shiro Nakamura, Hiroki Nishikawa","doi":"10.5217/ir.2025.00051","DOIUrl":"https://doi.org/10.5217/ir.2025.00051","url":null,"abstract":"","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144690283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neo-left colon volvulus or metachronous descending colon volvulus following sigmoidectomy for sigmoid volvulus.","authors":"Sabri Selcuk Atamanalp","doi":"10.5217/ir.2025.00015","DOIUrl":"https://doi.org/10.5217/ir.2025.00015","url":null,"abstract":"","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144690284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cross-ethnic evaluation of gut microbial signatures reveal increased colonization with oral pathobionts in the north Indian inflammatory bowel disease cohort.","authors":"Arshdeep Singh, Garima Juyal, Ranko Gacesa, Mohan C Joshi, Vandana Midha, B K Thelma, Rinse K Weersma, Ajit Sood","doi":"10.5217/ir.2024.00216","DOIUrl":"https://doi.org/10.5217/ir.2024.00216","url":null,"abstract":"<p><strong>Background/aims: </strong>Inflammatory bowel disease (IBD) has become a global health concern. With the growing evidence of the gut microbiota's role in IBD, studying microbial compositions across ethnic cohorts is essential to identify unique, populationspecific microbial signatures.</p><p><strong>Methods: </strong>We analyzed stool samples and clinical data from 254 IBD patients (226 ulcerative colitis, 28 Crohn's disease) and 66 controls in northern India using metagenomic shotgun sequencing to assess microbiota diversity, composition, and function. Results were replicated in 436 IBD patients and 903 controls from the Netherlands using identical workflows. Using machine learning, we evaluated the generalizability of Indian IBD signals to the Dutch cohort, and vice versa.</p><p><strong>Results: </strong>Indian IBD patients exhibited reduced bacterial diversity and an abundance of opportunistic pathogens, including Clostridium, Streptococcus, and oral bacteria like Streptococcus oralis and Bifidobacterium dentium. There was a significant loss of energy metabolic pathways and distinct co-occurrence patterns among microbial species. Notably, 39% of these signals replicated in the Dutch cohort. Unique to the Indian cohort were oral pathobionts such as Scardovia, Oribacterium, Actinomyces dentalis, and Klebsiella pneumoniae. Both Indian and Dutch IBD patients shared reduced butyrate producers. Machine-learning diagnostic models trained on the Indian cohort achieved high predictive accuracy (sensitivity 0.84, specificity 0.95) and moderately generalized to the Dutch cohort (sensitivity 0.77, specificity 0.69).</p><p><strong>Conclusions: </strong>IBD patients across populations exhibit shared and unique microbial signatures, suggesting a role for the oral-gut microbiome axis in IBD. Crossethnic diagnostic models show promise for broader applications in identifying IBD.</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144637031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Week 2 remission with vedolizumab as a predictor of long-term remission in patients with ulcerative colitis: a multicenter, retrospective, observational study.","authors":"Taku Kobayashi, Tadakazu Hisamatsu, Satoshi Motoya, Toshimitsu Fujii, Reiko Kunisaki, Tomoyoshi Shibuya, Minoru Matsuura, Ken Takeuchi, Sakiko Hiraoka, Hiroshi Yasuda, Kaoru Yokoyama, Noritaka Takatsu, Atsuo Maemoto, Toshiyuki Tahara, Keiichi Tominaga, Masaaki Shimada, Nobuaki Kuno, Mary Cavaliere, Kaori Ishiguro, Jovelle L Fernandez, Toshifumi Hibi","doi":"10.5217/ir.2025.00047","DOIUrl":"https://doi.org/10.5217/ir.2025.00047","url":null,"abstract":"<p><strong>Background/aims: </strong>Vedolizumab (VDZ), a gut-selective monoclonal antibody for ulcerative colitis (UC) treatment, has no established biomarkers or clinical features that predict long-term remission. Week 2 remission, a potential predictor of long-term remission, could inform maintenance treatment strategy.</p><p><strong>Methods: </strong>This retrospective, observational chart review included patients with UC in Japan who initiated VDZ between December 2018 and February 2020. Outcome measures included 14- and 54-week remission rates in patients with week 2 and non-week 2 remission (remission by week 14), 54-week remission rates in patients with week 14 remission and primary nonresponse, and predictive factors of week 2 and week 54 remission (logistic regression).</p><p><strong>Results: </strong>Overall, 332 patients with UC (176 biologic-naïve and 156 biologic-non-naïve) were included. Significantly more biologic-naïve than biologic-non-naïve patients achieved week 2 remission (36.9% vs. 28.2%; odds ratio [OR], 1.43; 95% confidence interval [CI], 1.05-1.94; P= 0.0224). Week 54 remission rates were significantly different between week 14 remission and primary nonresponse (both groups: P< 0.0001), and between week 2 and non-week 2 remission (all patients: OR, 2.41; 95% CI, 1.30-4.48; P= 0.0052; biologic-naïve patients: OR, 2.40; 95% CI, 1.10-5.24; P= 0.0280). Week 2 remission predictors were male sex, no anti-tumor necrosis factor alpha exposure, and normal/mild endoscopic findings. Week 54 remission was significantly associated with week 2 remission and no tacrolimus use.</p><p><strong>Conclusions: </strong>Week 2 remission with VDZ is a predictor of week 54 remission in patients with UC. Week 2 may be used as an evaluation point for UC treatment decisions. (Japanese Registry of Clinical Trials: jRCT-1080225363).</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144637033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy and safety of carotegrast methyl in active ulcerative colitis: a real-world prospective cohort study.","authors":"Takahiro Shimoyama, Takayuki Yamamoto, Haruka Miyao, Saki Aota, Shoichi Morita, Ryohei Sakaguchi","doi":"10.5217/ir.2025.00046","DOIUrl":"https://doi.org/10.5217/ir.2025.00046","url":null,"abstract":"<p><strong>Background/aims: </strong>Carotegrast methyl, an oral α4-integrin inhibitor, was recently approved for the treatment of active ulcerative colitis (UC). However, real-world data regarding its efficacy and safety remain scarce. This study aimed to assess the clinical effectiveness and safety profile of carotegrast methyl in patients with active UC.</p><p><strong>Methods: </strong>Patients with active UC received carotegrast methyl at a dosage of 960 mg three times daily. Treatment was discontinued at 8 weeks for patients who achieved endoscopic remission. For those not achieving endoscopic remission, treatment was continued for up to 24 weeks. Clinical and endoscopic assessments were performed at 8 and 24 weeks to evaluate treatment progress.</p><p><strong>Results: </strong>Among 50 UC patients, 45% achieved clinical remission, and 22% achieved endoscopic remission by week 8. Of those who discontinued treatment after reaching endoscopic remission, 55% experienced relapse during a median follow-up period of 30 weeks. For patients who continued treatment through 24 weeks, 52% achieved clinical remission, with a cumulative remission maintenance rate of 74.2%. Mild adverse events were reported in 6% of patients, including hyperamylasemia, hepatic dysfunction, and elevated biliary enzymes, all of which resolved after discontinuation of treatment. In 8 patients who relapsed and were re-administered carotegrast methyl, 62.5% achieved clinical remission, demonstrating the drug's effectiveness and safety in re-treatment.</p><p><strong>Conclusions: </strong>Carotegrast methyl effectively induces both clinical and endoscopic remission in patients with active UC and has a favorable safety profile. Re-administration is safe and effective for patients experiencing relapse.</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144637032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ulcerative colitis disease severity affects the speed of symptom relief under filgotinib treatment: a post hoc analysis of the phase 2b/3 SELECTION study.","authors":"Masayuki Saruta, Silvio Danese, Yoshie Takatori, Toshihiko Kaise, Christine Rudolph, Marc Ferrante, Toshifumi Hibi","doi":"10.5217/ir.2024.00169","DOIUrl":"https://doi.org/10.5217/ir.2024.00169","url":null,"abstract":"<p><strong>Background/aims: </strong>Filgotinib is an oral, once-daily, Janus kinase 1 preferential inhibitor approved for the treatment of ulcerative colitis (UC). This study aimed to assess symptomatic response with filgotinib 200 mg (FIL200) according to disease severity using baseline partial Mayo Clinic Score (pMCS).</p><p><strong>Methods: </strong>In the phase 2b/3 SELECTION study (NCT02914522), adults with moderate-to-severe UC were randomized to receive FIL200, filgotinib 100 mg, or placebo for 11 weeks in induction studies A (biologic-naive) and B (biologic-experienced). In this post hoc analysis, symptomatic remission (Mayo rectal bleeding subscore of 0 and stool frequency subscore ≤ 1) rates were assessed daily from baseline to day 15 and fortnightly from week 2 to week 10 by baseline pMCS (pMCS ≥ 7, pMCS < 7) in patients who received induction FIL200.</p><p><strong>Results: </strong>Of those who received FIL200 in induction studies A and B, 90 and 148 patients had a pMCS ≥ 7, and 155 and 114 had a pMCS < 7, respectively. Symptomatic remission rates were generally significantly higher in the pMCS < 7 than ≥ 7 group from day 2-15 (day 2: 8.4% vs. 1.1%, P= 0.009 [induction study A]; 8.8% vs. 0.7%, P= 0.004 [induction study B]). However, by week 10, there was no longer a significant difference in the rates between the pMCS ≥ 7 and < 7 groups (43.3% vs. 54.8%, P= 0.124 [induction study A]; 26.4% vs. 39.5%, P= 0.099 [induction study B]).</p><p><strong>Conclusions: </strong>Symptomatic response to FIL200 occurred more rapidly in the less severe disease groups than in the more severe disease groups; however, regardless of disease severity, both groups benefited from continued FIL200 treatment.</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144527974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolution of inflammatory bowel disease in Korea: a 60-year perspective on clinical and research development.","authors":"Suk-Kyun Yang","doi":"10.5217/ir.2025.00073","DOIUrl":"10.5217/ir.2025.00073","url":null,"abstract":"<p><p>Inflammatory bowel disease (IBD) was once considered rare in Korea, with the first reported case documented in 1961. Since then, its incidence and prevalence have increased markedly, accompanied by significant progress in clinical care and research. This narrative review traces the historical evolution of IBD in Korea, dividing the timeline into 4 periods: 1960-1979, 1980-1999, 2000-2019, and 2020-2039. For each period, major developments in the research environment and trends, diagnostic process, patient population and characteristics, and treatment are outlined. Over the past 6 decades, diagnostic and therapeutic approaches in Korea have advanced markedly, transitioning from limited diagnostic capacity and symptom-based management to practices that align with global standards. Notably, Korean patients with IBD exhibit distinctive clinical features compared with Western counterparts, including a markedly higher proportion of proctitis and a lower long-term risk of colectomy in ulcerative colitis, and a substantially higher prevalence of perianal fistulas in Crohn's disease, highlighting the need for population- specific strategies to advance personalized medicine. In parallel, the research landscape has evolved through multicenter collaborations, expanded research capacity, and growing international engagement, positioning Korea as an increasingly active contributor to the global IBD research community. Looking ahead, the future of IBD research in Korea is expected to be shaped by innovation-driven research, including advances in artificial intelligence, large-scale data integration, and deeper international collaboration. By tracing the clinical and research trajectory of IBD in Korea, this review offers insight into how the country has adapted to global trends and is preparing to meet future challenges.</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144368858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A real-world comparison of subcutaneous to intravenous administration of infliximab in patients with inflammatory bowel disease.","authors":"Kwang Woo Kim, Hyoun Woo Kang, Seong-Joon Koh, Hyuk Yoon, Sihyun Kim, Yukyung Jun, Hyun Jung Lee, Jong Pil Im, Young Soo Park, Ji Won Kim, Joo Sung Kim","doi":"10.5217/ir.2025.00001","DOIUrl":"10.5217/ir.2025.00001","url":null,"abstract":"<p><strong>Background/aims: </strong>We compared intravenous and subcutaneous infliximab (IFX) as treatment for inflammatory bowel disease (IBD).</p><p><strong>Methods: </strong>This retrospective, multicenter, observational study enrolled patients treated with either intravenous or subcutaneous IFX. Sequential parameters were compared at baseline, 6 months, and 12 months following the initiation of treatment with either type of IFX. The primary outcome was the comparison of the IFX trough levels after 12 months of treatment.</p><p><strong>Results: </strong>In total, 183 participants were included in this study. After 6 months, the subcutaneous group exhibited significant differences compared to the intravenous group; in terms of clinical disease activity (0% vs. 15%, P= 0.007) and IFX trough level (21.72 ± 8.71 μg/mL vs. 7.70 ± 16.65 μg/mL, P= 0.002). After 12 months, subcutaneous, as compared to intravenous, achieved improved clinical disease activity (0% vs. 15%, P= 0.044) and IFX trough level (20.41 ± 12.91 μg/mL vs. 7.06 ± 6.81 μg/mL, P< 0.001). Analyzing the sequential changes compared with baseline data within each group, we observed significant alterations in subcutaneous; 6 months fecal calprotectin (676.3 ± 976.6 μg/g vs. 253.9 ± 483.9 μg/g, P= 0.014), 6 months IFX trough level (7.00 ± 5.67 μg/mL vs. 18.44 ± 6.34 μg/mL, P= 0.026), and 12 months IFX trough level (7.00 ± 5.67 μg/mL vs. 21.33 ± 4.50 μg/mL, P= 0.034).</p><p><strong>Conclusions: </strong>This study indicates the potential suitability of subcutaneous IFX as an alternative treatment option for IBD.</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144368826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative effectiveness of ustekinumab versus infliximab in the management of perianal fistulizing Crohn's disease: a retrospective study in China.","authors":"Mengqi Chen, Zihan Chen, Jianming Lin, Linxin Liu, Tong Tu, Xiaoling Li, Baili Chen, Yao He, Minhu Chen, Zhirong Zeng, Xiaojun Zhuang","doi":"10.5217/ir.2024.00168","DOIUrl":"https://doi.org/10.5217/ir.2024.00168","url":null,"abstract":"<p><strong>Background/aims: </strong>Ustekinumab (UST) and infliximab (IFX) are both effective in the treatment of perianal fistulizing Crohn's disease (CD), but limited research has focused on comparing the efficacy of UST versus IFX in this field. This study aimed to compare the effectiveness of UST or IFX in treating perianal fistula of CD patients naive to biological agents in a real-world setting.</p><p><strong>Methods: </strong>A retrospective cohort study included patients with perianal fistulizing CD treated with UST or IFX was conducted to evaluate the rates of luminal and perianal fistula response and remission at 6 months after treatment.</p><p><strong>Results: </strong>Ninety-seven patients (49 UST and 48 IFX) were enrolled. Compared to IFX, UST exhibited significantly higher rates of treatment success (89.8% vs. 50.0%, P< 0.001) and intestinal clinical response (85.7% vs. 68.8%, P= 0.048), but no significant differences in fistula remission, fistula response, fistula closure, intestinal clinical remission, endoscopic remission and endoscopic response was observed. Furthermore, multivariate analyses demonstrated complexity of fistula was conversely associated with fistula remission between the UST and IFX groups. Finally, the rates of disease relapse and operation in the IFX group were higher as compared to the UST group during follow-up.</p><p><strong>Conclusions: </strong>UST may serve as a promising alternative to IFX for the treatment of perianal fistulizing CD.</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144274870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical spectrum of acute severe ulcerative colitis in the biologic era: a prospective cohort study from India.","authors":"Arshdeep Singh, Mayur Luthra, Arshia Bhardwaj, Ramit Mahajan, Riya Sharma, Dharmatma Singh, Devanshi Jain, Omesh Goyal, Varun Mehta, Kirandeep Kaur, Yogesh Kumar Gupta, Vandana Midha, Ajit Sood","doi":"10.5217/ir.2024.00189","DOIUrl":"https://doi.org/10.5217/ir.2024.00189","url":null,"abstract":"<p><strong>Background/aims: </strong>Acute severe ulcerative colitis (ASUC) is a time-critical situation requiring urgent intervention. Limited data exist on the evolving clinical spectrum of ASUC in the era of advanced therapies.</p><p><strong>Methods: </strong>This prospective real-world observational cohort study included 145 adult patients hospitalized with ASUC between January 2020 and June 2024. ASUC was defined by the modified Truelove and Witts criteria. Demographics and disease characteristics, including disease severity, probable precipitating factors, and corticosteroid failure rates, were recorded.</p><p><strong>Results: </strong>The median age of patients was 36 years (interquartile range, 26-48.5 years) with 63 females (43.4%). Most patients had left-sided colitis (53.1%). The median disease duration was 1 year (IQR, 0.5-3 years), with 91 patients (62.7%) presenting with ASUC within the first year of diagnosis of ulcerative colitis. One-third of the patients had previous exposure to biologics and small molecules. The most commonly reported probable precipitants of ASUC were poor compliance with treatment (n = 43, 29.6%), antibiotic use (n = 35, 24.1%), high perceived stress (n = 32, 22.1%), and Clostridioides difficile infection (n = 19, 13.1%). Forty patients (27.5%) were non-responders to intravenous corticosteroids (IVCS). Twenty-nine patients (20%) received medical rescue therapy (infliximab, n = 14 [48.27%], cyclosporine A, n = 6 [20.68%], and tofacitinib, n = 9 [31.03%]). Seven patients (4.82%; 4 after non-response to IVCS and 3 after non-response to medical rescue therapy) underwent colectomy.</p><p><strong>Conclusions: </strong>In this cohort of ASUC patients, poor treatment compliance, antibiotic use, stress, and C. difficile infection were common precipitants of flare-ups. Nearly one-third of patients required medical rescue therapy, and a small proportion ultimately underwent colectomy.</p>","PeriodicalId":14481,"journal":{"name":"Intestinal Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144247860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}