首页 > 最新文献

Journal of Experimental & Clinical Medicine最新文献

英文 中文
A case of Meckel’s diverticulum with life-threatening recurrent gastrointestinal bleeding in an adult 成人梅克尔憩室并发危及生命的复发性胃肠道出血1例
Pub Date : 2021-03-18 DOI: 10.52142/OMUJECM.38.SI.GASTRO.13
U. Avcıoğlu, B. Baş, S. Çalişkan
Meckel’s diverticulum is the most common congenital anomaly of the gastrointestinal system. It results from the incomplete closure of the omphalomesenteric canal in intrauterine life. It is mostly diagnosed in childhood with intestinal obstruction and bleeding. It is uncommon and often clinically silent in adults. Also, it is difficult to diagnose the patients with symptomatic Meckel’s diverticulum. We report a 28-year-old male who presented with life-threatening recurrent lower gastrointestinal (GI) bleeding and was operated with the diagnosis of Meckel’s diverticulum with duodenal ulcer.
梅克尔憩室是胃肠道最常见的先天性异常。它是由宫内生活中脐肠管不完全闭合引起的。它大多在儿童期诊断为肠梗阻和出血。它在成人中并不常见,临床上通常无症状。此外,症状性梅克尔憩室患者的诊断也比较困难。我们报告一个28岁的男性,他提出了危及生命的复发性下消化道出血和手术诊断为梅克尔憩室十二指肠溃疡。
{"title":"A case of Meckel’s diverticulum with life-threatening recurrent gastrointestinal bleeding in an adult","authors":"U. Avcıoğlu, B. Baş, S. Çalişkan","doi":"10.52142/OMUJECM.38.SI.GASTRO.13","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.SI.GASTRO.13","url":null,"abstract":"Meckel’s diverticulum is the most common congenital anomaly of the gastrointestinal system. It results from the incomplete closure of the omphalomesenteric canal in intrauterine life. It is mostly diagnosed in childhood with intestinal obstruction and bleeding. It is uncommon and often clinically silent in adults. Also, it is difficult to diagnose the patients with symptomatic Meckel’s diverticulum. We report a 28-year-old male who presented with life-threatening recurrent lower gastrointestinal (GI) bleeding and was operated with the diagnosis of Meckel’s diverticulum with duodenal ulcer.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"8 1","pages":"78-80"},"PeriodicalIF":0.0,"publicationDate":"2021-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78537346","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}
引用次数: 0
Can asymptomatic Chron’s disease be diagnosed in patients with iron deficiency anemia by CT-enterograhpy? 缺铁性贫血患者的无症状慢性疾病可以通过ct肠图诊断吗?
Pub Date : 2021-03-18 DOI: 10.52142/OMUJECM.38.SI.GASTRO.11
U. Avcıoğlu, A. İdil Soylu
It is difficult to diagnose Crohn's disease in the asymptomatic period. The aim of this study is to evaluate the diagnostic utility of CT enterography (CTE) in the diagnosis of asymptomatic Crohn's disease (CD) with small intestine involment in patients with iron deficiency anemia (IDA). 250 patients who underwent CTE examination between 2017 and 2018 were retrospectively scanned. 45 patients who had endoscopic examinations and diagnosed with IDA were included in the study. While one or more pathological findings to explain IDA were observed in 31 (68%) patients with endoscopic examinations, findings that could be explained as CD sequelae were observed in 4 (8.8%) patients. No lesions were observed by CTE in 10 (22.2%) patients. Diagnosis is difficult in mild forms of Crohn’s disease or in periods of remission. In this period, CTE can contribute to the diagnosis as it can also show extraluminal findings.
在无症状期很难诊断克罗恩病。本研究的目的是评估CT肠造影(CTE)对缺铁性贫血(IDA)患者无症状克罗恩病(CD)伴小肠累及的诊断价值。在2017年至2018年期间接受CTE检查的250名患者进行了回顾性扫描。45例经内窥镜检查并诊断为IDA的患者纳入研究。虽然在31例(68%)内镜检查患者中观察到一种或多种病理结果可以解释IDA,但在4例(8.8%)患者中观察到可以解释为CD后遗症的结果。10例(22.2%)患者CTE未见病变。诊断是困难的,在轻度形式的克罗恩病或在缓解期。在此期间,CTE可以帮助诊断,因为它也可以显示腔外发现。
{"title":"Can asymptomatic Chron’s disease be diagnosed in patients with iron deficiency anemia by CT-enterograhpy?","authors":"U. Avcıoğlu, A. İdil Soylu","doi":"10.52142/OMUJECM.38.SI.GASTRO.11","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.SI.GASTRO.11","url":null,"abstract":"It is difficult to diagnose Crohn's disease in the asymptomatic period. The aim of this study is to evaluate the diagnostic utility of CT enterography (CTE) in the diagnosis of asymptomatic Crohn's disease (CD) with small intestine involment in patients with iron deficiency anemia (IDA). 250 patients who underwent CTE examination between 2017 and 2018 were retrospectively scanned. 45 patients who had endoscopic examinations and diagnosed with IDA were included in the study. While one or more pathological findings to explain IDA were observed in 31 (68%) patients with endoscopic examinations, findings that could be explained as CD sequelae were observed in 4 (8.8%) patients. No lesions were observed by CTE in 10 (22.2%) patients. Diagnosis is difficult in mild forms of Crohn’s disease or in periods of remission. In this period, CTE can contribute to the diagnosis as it can also show extraluminal findings.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"8 1","pages":"71-73"},"PeriodicalIF":0.0,"publicationDate":"2021-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80421985","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}
引用次数: 0
Effect of zinc deficiency on cognitive function in females with iron deficiency anemia 缺锌对缺铁性贫血女性认知功能的影响
Pub Date : 2021-03-14 DOI: 10.52142/OMUJECM.38.2.10
N. A. Aslan, E. Kelkitli, N. Ozturk
Background Iron deficiency and zinc deficiency had been known to disturb congnitive functions especially in infants and preschool children. Our purpose was to evaluate the effect of zinc deficiency and iron deficiency on cognitive function (with Montreal Cognitive Assesment [MoCA] score) in females. Methods: We designed a randomized controlled prospective study. 41 iron deficient female patients and 40 healthy volunteers were involved in the study Results: The average MoCA score ± SD was 24,63 ± 4,3 (range 11–30) in iron deficiency anemia (IDA), and 27.43± 2.02 (23-30) in healthy volunteers. Zinc level was 97.06 (40.8–146.8) mg/dl and 257.5 (128.2–463.7) in IDA and healthy volunteers respectively. MoCA score (r= 0.803, p=0,000<0,01), were significantly correlated with Zinc Level in iron deficient group. Conclusion: We found that there was a statistically important linear relationship between MoCA score and zinc level in female patinets with iron defciency anemia.
研究背景缺铁和缺锌会影响认知功能,尤其是婴幼儿和学龄前儿童。我们的目的是评估缺锌和缺铁对女性认知功能的影响(使用蒙特利尔认知评估[MoCA]评分)。方法:设计随机对照前瞻性研究。结果:缺铁性贫血(IDA)患者MoCA评分±SD平均值为24、63±4,3(范围11-30),健康志愿者MoCA评分平均值为27.43±2.02(范围23-30)。锌水平在IDA和健康志愿者中分别为97.06 (40.8-146.8)mg/dl和257.5(128.2-463.7)。缺铁组MoCA评分(r= 0.803, p= 0000 < 0.01)与锌水平显著相关。结论:我们发现女性缺铁性贫血患者MoCA评分与锌水平之间存在统计学上重要的线性关系。
{"title":"Effect of zinc deficiency on cognitive function in females with iron deficiency anemia","authors":"N. A. Aslan, E. Kelkitli, N. Ozturk","doi":"10.52142/OMUJECM.38.2.10","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.2.10","url":null,"abstract":"Background Iron deficiency and zinc deficiency had been known to disturb congnitive functions especially in infants and preschool children. Our purpose was to evaluate the effect of zinc deficiency and iron deficiency on cognitive function (with Montreal Cognitive Assesment [MoCA] score) in females. Methods: We designed a randomized controlled prospective study. 41 iron deficient female patients and 40 healthy volunteers were involved in the study Results: The average MoCA score ± SD was 24,63 ± 4,3 (range 11–30) in iron deficiency anemia (IDA), and 27.43± 2.02 (23-30) in healthy volunteers. Zinc level was 97.06 (40.8–146.8) mg/dl and 257.5 (128.2–463.7) in IDA and healthy volunteers respectively. MoCA score (r= 0.803, p=0,000<0,01), were significantly correlated with Zinc Level in iron deficient group. Conclusion: We found that there was a statistically important linear relationship between MoCA score and zinc level in female patinets with iron defciency anemia.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"12 1","pages":"111-114"},"PeriodicalIF":0.0,"publicationDate":"2021-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78554588","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}
引用次数: 1
Does Costal Cartilage Resection Reduce Lung Volume ? (An Experimental Stereological Study) 肋软骨切除会减少肺体积吗?(实验立体学研究)
Pub Date : 2021-03-14 DOI: 10.52142/OMUJECM.38.2.2
A. Şengül, Y. Büyükkarabacak, Gamze Altun, Z. Altunkaynak, Bilal Şengül, S. Gürz, A. Basoglu, M. G. Pirzirenli
Background: Surgical treatment of chest wall deformities is done with costal cartilage resection in selected patients in adolescence. In this study, we evaluated the effect of costal cartilage resections on the lung volume by using computed tomography with stereologically. Methods: In this study, sixteen 4-weeks-old New Zealand rabbits were employed. Young subjects were preferred to evaluate the effect of the operation on the growth process. In order to avoid postoperative complications, only 2 costal cartilage resection was performed. The surgical group was resected to the right 4 and 5 costal cartilages (n = 8). The group that was not operated was accepted as the control group (n=8). The growth of the subjects was followed. Computed thorax tomography (CTT) scans of all animals were performed preoperatively and at the 4th postoperative week. Estimation of pre- and postoperative lung volumes was performed with the Cavalieri principle. Results: In the control group followed up during growth, bilateral lung volume was increased (15.75% and 20.62% respectively right and left lungs). In the surgical group, both the surgical side and the opposite lung volume decreased after costal cartilage resection (20.09% and 1.07% respectively right and left lungs). Conclusions: Even though the number of resected cartilage was limited, total lung volume decreased after costal cartilage resection. In the treatment of chest wall deformities, costal cartilage resection should be considered as the last option in children.
背景:胸壁畸形的手术治疗是通过切除肋软骨在青少年选定的患者。在这项研究中,我们评估了肋软骨切除对肺体积的影响,采用立体学的计算机断层扫描。方法:选用16只4周龄新西兰兔。年轻受试者优先评估手术对生长过程的影响。为避免术后并发症,仅行2例肋软骨切除术。手术组分别切除右侧4、5块肋软骨(n=8),不手术组作为对照组(n=8)。跟踪研究对象的成长情况。术前和术后第4周对所有动物进行ct (CTT)扫描。根据卡瓦列里原理估计术前和术后肺容量。结果:对照组在生长期间随访,双侧肺体积增大(右、左肺分别增大15.75%、20.62%)。手术组肋软骨切除后,手术侧和对侧肺体积均减少(右、左肺分别减少20.09%和1.07%)。结论:尽管切除的软骨数量有限,但切除肋软骨后肺总体积减小。在胸壁畸形的治疗中,儿童应考虑最后选择肋软骨切除术。
{"title":"Does Costal Cartilage Resection Reduce Lung Volume ? (An Experimental Stereological Study)","authors":"A. Şengül, Y. Büyükkarabacak, Gamze Altun, Z. Altunkaynak, Bilal Şengül, S. Gürz, A. Basoglu, M. G. Pirzirenli","doi":"10.52142/OMUJECM.38.2.2","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.2.2","url":null,"abstract":"Background: Surgical treatment of chest wall deformities is done with costal cartilage resection in selected patients in adolescence. In this study, we evaluated the effect of costal cartilage resections on the lung volume by using computed tomography with stereologically. Methods: In this study, sixteen 4-weeks-old New Zealand rabbits were employed. Young subjects were preferred to evaluate the effect of the operation on the growth process. In order to avoid postoperative complications, only 2 costal cartilage resection was performed. The surgical group was resected to the right 4 and 5 costal cartilages (n = 8). The group that was not operated was accepted as the control group (n=8). The growth of the subjects was followed. Computed thorax tomography (CTT) scans of all animals were performed preoperatively and at the 4th postoperative week. Estimation of pre- and postoperative lung volumes was performed with the Cavalieri principle. Results: In the control group followed up during growth, bilateral lung volume was increased (15.75% and 20.62% respectively right and left lungs). In the surgical group, both the surgical side and the opposite lung volume decreased after costal cartilage resection (20.09% and 1.07% respectively right and left lungs). Conclusions: Even though the number of resected cartilage was limited, total lung volume decreased after costal cartilage resection. In the treatment of chest wall deformities, costal cartilage resection should be considered as the last option in children.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"44 1","pages":"61-65"},"PeriodicalIF":0.0,"publicationDate":"2021-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91231456","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}
引用次数: 0
The application of C2 transpedicular screw, C1 laminar hook fixation and bone graft in the atlantoaxial instability C2经椎弓根螺钉、C1椎板钩固定及植骨在寰枢椎不稳中的应用
Pub Date : 2021-03-14 DOI: 10.52142/OMUJECM.38.2.7
Sukru Oral
Aim/Background Traumatic atlantoaxial instability usually results from a motor vehicle accident, falls and motorcycle accidents. Atlantoaxial instability can lead to spinal cord compression and neck pain, but, spasticity and radicular symptoms as well. The purpose of surgery is to remove the compression and stabilize the joint permanently. To date, several surgical techniques have been described to remedy C1-C2 instability. In this study, the clinical and radiological outcomes of patients who operated with the C1 (Atlas bone) laminar hooks fixation and bilateral C2 (Axis bone) trans-pedicular screw technique were shown. Also, the advantages and disadvantages of this technique are discussed. Methods From March 2010 to December 2017, 12 patients who have atlantoaxial instability were surgically treated by modified fixation technique which consists C1 laminar hooks fixation and bilateral C2 transpedicular screw. Results Twelve patients were operated with this procedure from March 2010 to December 2017. All the patients were checked with flexion-extension x-rays at the end of the twelfth week. The posterior bony fusion formation was observed on imaging in all patients. Conclusion C2 bilateral pedicle screw combined with C1 laminar hook system is a good method for atlantoaxial instability in the conditions which is not convenient for insertion of C1 lateral mass and C2 trans-articular screw. However, this method may not be available in some cases such as traumatic, infection, neoplastic or degenerative pathologies in which the posterior arch of the atlas is damaged.
目的/背景外伤性寰枢椎不稳定通常由机动车事故、跌倒和摩托车事故引起。寰枢椎不稳定可导致脊髓压迫和颈部疼痛,但也可导致痉挛和神经根症状。手术的目的是消除压迫,使关节永久稳定。迄今为止,已有几种手术技术被描述用于治疗C1-C2不稳定。本研究显示了采用C1(寰椎骨)椎板钩固定和双侧C2(轴椎骨)经椎弓根螺钉技术的患者的临床和影像学结果。并对该技术的优缺点进行了讨论。方法2010年3月至2017年12月对12例寰枢椎不稳患者行改良固定技术,采用C1椎板钩固定+双侧C2经椎弓根螺钉固定。结果2010年3月至2017年12月共12例患者采用该方法手术。所有患者在第12周结束时进行了屈伸x线检查。所有患者在影像学上均观察到后路骨融合形成。结论C2双侧椎弓根螺钉联合C1椎弓根钩系统是治疗寰枢椎不稳不方便置入C1侧块和C2经关节螺钉的良好方法。然而,这种方法可能不适用于某些病例,如创伤、感染、肿瘤或退行性病变,其中寰椎后弓受损。
{"title":"The application of C2 transpedicular screw, C1 laminar hook fixation and bone graft in the atlantoaxial instability","authors":"Sukru Oral","doi":"10.52142/OMUJECM.38.2.7","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.2.7","url":null,"abstract":"Aim/Background Traumatic atlantoaxial instability usually results from a motor vehicle accident, falls and motorcycle accidents. Atlantoaxial instability can lead to spinal cord compression and neck pain, but, spasticity and radicular symptoms as well. The purpose of surgery is to remove the compression and stabilize the joint permanently. To date, several surgical techniques have been described to remedy C1-C2 instability. In this study, the clinical and radiological outcomes of patients who operated with the C1 (Atlas bone) laminar hooks fixation and bilateral C2 (Axis bone) trans-pedicular screw technique were shown. Also, the advantages and disadvantages of this technique are discussed. Methods From March 2010 to December 2017, 12 patients who have atlantoaxial instability were surgically treated by modified fixation technique which consists C1 laminar hooks fixation and bilateral C2 transpedicular screw. Results Twelve patients were operated with this procedure from March 2010 to December 2017. All the patients were checked with flexion-extension x-rays at the end of the twelfth week. The posterior bony fusion formation was observed on imaging in all patients. Conclusion C2 bilateral pedicle screw combined with C1 laminar hook system is a good method for atlantoaxial instability in the conditions which is not convenient for insertion of C1 lateral mass and C2 trans-articular screw. However, this method may not be available in some cases such as traumatic, infection, neoplastic or degenerative pathologies in which the posterior arch of the atlas is damaged.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"131 1","pages":"94-98"},"PeriodicalIF":0.0,"publicationDate":"2021-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78517449","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}
引用次数: 0
Evaluation of serum levels of copper and selenium in Helicobacter pylori positive and negative gastritis patients 幽门螺杆菌阳性和阴性胃炎患者血清铜和硒水平的评价
Pub Date : 2021-03-14 DOI: 10.52142/OMUJECM.38.2.23
Vahid Hamidi Omran, M. Ranaei, N. Neamati, J. Shirvani, K. Tilaki, A. Mosapour, Mehdi Soltanzadeh Yamchi, M. Tourani, H. Parsian
Background: Helicobacter pylori (H. pylori) infection can result in various complications, included micronutrient variations, nutritional impairment, gastric tissue damages and oxidative stress. The present study aimed to evaluate serum variations of Cu and Se in H. pylori infected individuals. Materials and methods: A prospective case-control study was performed on 69 participants with abdominal pains (40 patients with H. pylori gastritis versus 29 control group). Serum levels of Cu and Se were measured using Atomic Absorption Spectrophotometer. Statistical analysis was performed using SPSS software. Comparisons of elements between included groups were done using independent sample t-test. Subgroup analysis between male and female (with or without H. pylori) was performed using one way analysis of variance. Correlation between serum Cu and Se was assessed using Pearson’s correlation test. The p-value levels less than 0.05 were considered as significant. Results: There were no significant differences in serum levels of Cu and Se between H. pylori positive and negative persons. In male with H. pylori, Se levels were 38.4% higher than control male (p-value=0.03). A positive and significant correlation was observed between serum Cu and Se levels (r = 0.51, P-value = 0.024). Conclusion: Although no statistic difference was observed in serum Cu and Se levels, the significant correlation between measured elements represent as good evidence for some discrepancies. Given the importance of well controlled micronutrients in whole body health, especially in high risk H. pylori patients, more studies are needed to clarify the exact relation of these and other trace elements with H. pylori outcomes.
背景:幽门螺杆菌感染可导致多种并发症,包括微量营养素变化、营养损害、胃组织损伤和氧化应激。本研究旨在评估幽门螺杆菌感染个体血清中Cu和Se的变化。材料和方法:对69名腹痛患者进行前瞻性病例对照研究(40名幽门螺杆菌胃炎患者和29名对照组)。采用原子吸收分光光度计测定血清铜、硒水平。采用SPSS软件进行统计分析。各组间元素比较采用独立样本t检验。采用单因素方差分析对男性和女性(有无幽门螺旋杆菌)进行亚组分析。采用Pearson相关检验评价血清铜、硒的相关性。p值水平小于0.05被认为是显著的。结果:幽门螺杆菌阳性者与阴性者血清铜、硒水平无显著差异。男性幽门螺杆菌感染者Se水平较对照组高38.4% (p值=0.03)。血清Cu和Se水平呈显著正相关(r = 0.51, p值= 0.024)。结论:血清Cu和Se水平虽无统计学差异,但各测量元素之间存在显著相关性,说明存在差异。鉴于控制良好的微量元素对全身健康的重要性,特别是对高危幽门螺杆菌患者,需要更多的研究来阐明这些微量元素和其他微量元素与幽门螺杆菌预后的确切关系。
{"title":"Evaluation of serum levels of copper and selenium in Helicobacter pylori positive and negative gastritis patients","authors":"Vahid Hamidi Omran, M. Ranaei, N. Neamati, J. Shirvani, K. Tilaki, A. Mosapour, Mehdi Soltanzadeh Yamchi, M. Tourani, H. Parsian","doi":"10.52142/OMUJECM.38.2.23","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.2.23","url":null,"abstract":"Background: Helicobacter pylori (H. pylori) infection can result in various complications, included micronutrient variations, nutritional impairment, gastric tissue damages and oxidative stress. The present study aimed to evaluate serum variations of Cu and Se in H. pylori infected individuals. Materials and methods: A prospective case-control study was performed on 69 participants with abdominal pains (40 patients with H. pylori gastritis versus 29 control group). Serum levels of Cu and Se were measured using Atomic Absorption Spectrophotometer. Statistical analysis was performed using SPSS software. Comparisons of elements between included groups were done using independent sample t-test. Subgroup analysis between male and female (with or without H. pylori) was performed using one way analysis of variance. Correlation between serum Cu and Se was assessed using Pearson’s correlation test. The p-value levels less than 0.05 were considered as significant. Results: There were no significant differences in serum levels of Cu and Se between H. pylori positive and negative persons. In male with H. pylori, Se levels were 38.4% higher than control male (p-value=0.03). A positive and significant correlation was observed between serum Cu and Se levels (r = 0.51, P-value = 0.024). Conclusion: Although no statistic difference was observed in serum Cu and Se levels, the significant correlation between measured elements represent as good evidence for some discrepancies. Given the importance of well controlled micronutrients in whole body health, especially in high risk H. pylori patients, more studies are needed to clarify the exact relation of these and other trace elements with H. pylori outcomes.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"73 1","pages":"182-186"},"PeriodicalIF":0.0,"publicationDate":"2021-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80575860","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}
引用次数: 2
Evaluation of the level of anxiety among pregnant women during the outbreak of Covid-19 新冠肺炎疫情期间孕妇焦虑水平评估
Pub Date : 2021-03-14 DOI: 10.52142/OMUJECM.38.2.16
Banuhan Şahin, D. Öztürk
Objective: The aim of this study is to investigate the level of anxiety and distress among pregnant women during the outbreak of Covid-19. Material and Methods: A 30-item questionnaire was applied on-line to a total of 240 pregnant women from all the cities of Turkey between 18-24 May 2020. With this questionnaire, demographic data of the participants, their knowledge and concerns about Covid-19, general measures they took against Covid-19, pregnancy follow-ups and their delivery preferences were evaluated. In addition, the State-trait Anxiety Inventory (STAI) adapted to Turkish was applied to each participant. Personal and obstetric information were grouped and compared with the anxiety scale. Anxiety levels of the groups were calculated. Results: The STAI score means of 240 pregnant women who filled our questionnaire was 46.39±12.36 and the Cronbach Alpha value was calculated as 0.93. It was found that 125 pregnant women received help by contacting their doctor over the phone during the Covid-19 outbreak. It was also found that 106 pregnant women wanted to give birth at home. It was again found that 47.9% of pregnant women received information about Covid-19 from television. The STAI scores of pregnant women whose one or more family members’ Covid-19 test were positive was 59.60 ± 5.63. The anxiety scores of pregnant women who were healthcare workers was 48.30 ± 12.27. Conclusions: Necessary clinical and psychological counseling services should be provided by local and national health institutions via television, telephone and internet for pregnant women, whose anxiety level increased during the Covid-19 outbreak, to be in full physical and mental well-being.
目的:了解新冠肺炎疫情期间孕妇的焦虑和痛苦水平。材料和方法:在2020年5月18日至24日期间,对来自土耳其所有城市的240名孕妇进行了30项在线问卷调查。通过该问卷,评估了参与者的人口统计数据、他们对Covid-19的了解和关注、他们采取的一般措施、妊娠随访和分娩偏好。此外,对每个参与者应用适用于土耳其语的状态-特质焦虑量表(STAI)。将个人和产科信息分组并与焦虑量表进行比较。计算各组的焦虑水平。结果:240例孕妇的STAI得分均值为46.39±12.36,Cronbach Alpha值为0.93。调查发现,在新冠肺炎疫情期间,有125名孕妇通过电话联系医生获得了帮助。调查还发现,106名孕妇希望在家分娩。再次发现,47.9%的孕妇从电视上获得了有关Covid-19的信息。家庭成员中一人或多人新冠病毒检测阳性的孕妇STAI得分为59.60±5.63。医护人员孕妇焦虑得分为48.30±12.27分。结论:地方和国家卫生机构应通过电视、电话和互联网等方式,为新冠肺炎疫情期间焦虑水平升高的孕妇提供必要的临床和心理咨询服务,使其身心健康。
{"title":"Evaluation of the level of anxiety among pregnant women during the outbreak of Covid-19","authors":"Banuhan Şahin, D. Öztürk","doi":"10.52142/OMUJECM.38.2.16","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.2.16","url":null,"abstract":"Objective: The aim of this study is to investigate the level of anxiety and distress among pregnant women during the outbreak of Covid-19. Material and Methods: A 30-item questionnaire was applied on-line to a total of 240 pregnant women from all the cities of Turkey between 18-24 May 2020. With this questionnaire, demographic data of the participants, their knowledge and concerns about Covid-19, general measures they took against Covid-19, pregnancy follow-ups and their delivery preferences were evaluated. In addition, the State-trait Anxiety Inventory (STAI) adapted to Turkish was applied to each participant. Personal and obstetric information were grouped and compared with the anxiety scale. Anxiety levels of the groups were calculated. Results: The STAI score means of 240 pregnant women who filled our questionnaire was 46.39±12.36 and the Cronbach Alpha value was calculated as 0.93. It was found that 125 pregnant women received help by contacting their doctor over the phone during the Covid-19 outbreak. It was also found that 106 pregnant women wanted to give birth at home. It was again found that 47.9% of pregnant women received information about Covid-19 from television. The STAI scores of pregnant women whose one or more family members’ Covid-19 test were positive was 59.60 ± 5.63. The anxiety scores of pregnant women who were healthcare workers was 48.30 ± 12.27. Conclusions: Necessary clinical and psychological counseling services should be provided by local and national health institutions via television, telephone and internet for pregnant women, whose anxiety level increased during the Covid-19 outbreak, to be in full physical and mental well-being.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"57 1","pages":"143-149"},"PeriodicalIF":0.0,"publicationDate":"2021-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76076330","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}
引用次数: 0
Study on the effect of maternal administration of oxaliplatin on offspring testes using unbiased design-based stereology 利用无偏设计体视学研究母体给予奥沙利铂对子代睾丸的影响
Pub Date : 2021-03-14 DOI: 10.52142/OMUJECM.38.2.8
J. Sadeghinezhad, Moslem Dahmardeh, Z. Tootian, Hadis Bojarzadeh, F. Yarmahmoudi
Oxaliplatin (Ox) is widely used for the treatment of various tumors. Since Ox prevents DNA replication and transcription, it may affect organs with rapid cell divisions such as the testes. Although its use during pregnancy has been reported, no information regarding its effects on the testes of the offspring is not available yet. Thirty-two mice were randomly divided into four groups. The control group (1) was administered intraperitoneally 0.2 ml of saline three times a week for the 21 days of pre-pregnancy, pregnancy and lactation. Experimental groups 2, 3 and 4 received 3 mg/kg of oxaliplatin three times a week for 21 days during pre-pregnancy, pregnancy and lactation, respectively. The left testis was removed from male offspring 30 and 60 days after birth. The volume of the testes, seminiferous tubules and interstitial tissue, the surface area and height of the seminiferous epithelium, as well as the length and diameter of seminiferous tubules, were analyzed by means of stereology. Results showed a decrease in the evaluated parameters in experimental groups, in comparison with the control group. Due to the ameliorating effect of Ox on offspring testes, cautiousness is needed during maternal administration in order to preserve the fertility of male offspring.
奥沙利铂广泛用于各种肿瘤的治疗。由于Ox会阻止DNA的复制和转录,因此可能会影响睾丸等细胞分裂迅速的器官。虽然在怀孕期间使用它的报道,但目前还没有关于它对后代睾丸影响的信息。32只小鼠随机分为四组。对照组(1)在孕前、妊娠期和哺乳期21 d,每周3次腹腔注射生理盐水0.2 ml。实验2、3、4组在妊娠前期、妊娠期和哺乳期分别给予奥沙利铂3 mg/kg,每周3次,连用21 d。雄性后代在出生后30天和60天切除左睾丸。用体视学方法分析睾丸、精管和间质组织的体积,精管上皮的表面积和高度,精管的长度和直径。结果显示,与对照组相比,实验组的评估参数有所下降。由于牛对子代睾丸有改善作用,为了保持雄性后代的生育能力,在母体给药时需谨慎。
{"title":"Study on the effect of maternal administration of oxaliplatin on offspring testes using unbiased design-based stereology","authors":"J. Sadeghinezhad, Moslem Dahmardeh, Z. Tootian, Hadis Bojarzadeh, F. Yarmahmoudi","doi":"10.52142/OMUJECM.38.2.8","DOIUrl":"https://doi.org/10.52142/OMUJECM.38.2.8","url":null,"abstract":"Oxaliplatin (Ox) is widely used for the treatment of various tumors. Since Ox prevents DNA replication and transcription, it may affect organs with rapid cell divisions such as the testes. Although its use during pregnancy has been reported, no information regarding its effects on the testes of the offspring is not available yet. Thirty-two mice were randomly divided into four groups. The control group (1) was administered intraperitoneally 0.2 ml of saline three times a week for the 21 days of pre-pregnancy, pregnancy and lactation. Experimental groups 2, 3 and 4 received 3 mg/kg of oxaliplatin three times a week for 21 days during pre-pregnancy, pregnancy and lactation, respectively. The left testis was removed from male offspring 30 and 60 days after birth. The volume of the testes, seminiferous tubules and interstitial tissue, the surface area and height of the seminiferous epithelium, as well as the length and diameter of seminiferous tubules, were analyzed by means of stereology. Results showed a decrease in the evaluated parameters in experimental groups, in comparison with the control group. Due to the ameliorating effect of Ox on offspring testes, cautiousness is needed during maternal administration in order to preserve the fertility of male offspring.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"3 1","pages":"99-106"},"PeriodicalIF":0.0,"publicationDate":"2021-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81903121","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}
引用次数: 3
State-trait anxiety levels in Turkey during COVID-19 pandemic and its relationship to somatosensory amplification 2019冠状病毒病大流行期间土耳其状态-特质焦虑水平及其与体感放大的关系
Pub Date : 2021-03-01 DOI: 10.5835/JECM.OMU.38.01.007
Ozlem Kazan Kizilkurt, Gürler Güz, H. Güz, N. Dilbaz
Novel Coronavirus (COVID-19) pandemic which is a global public health problem continues to affect humans both physically and psychologically all around the world. So, it is important to diagnose and manage the anxiety while fighting the COVID-19 pandemic. The present study aimed to separately evaluate state and trait anxiety in the COVID-19 pandemic in Turkey. In addition, it was aimed to investigate the relation of demographic variable with state anxiety in the COVID-19 pandemic, as well as the relationship between trait anxiety and somatosensory amplification with state anxiety.726 participants who responded to online survey between March 30th and April 20th, 2020 were evaluated. All participants answered the survey that covered sociodemographic data and questions specifically about COVID-19 pandemic as well as State-Trait Anxiety Inventory and Somatosensory Amplification Scale. Pearson test was used for correlation analysis, ordinal variables were analyzed with Spearman correlation test. State anxiety is higher, if the participant is woman, has an acquaintance with the COVID-19 positivity, has a chronic medical condition and currently receiving or has history of psychiatric treatment. Age, monthly income, trait anxiety level and somatosensory amplification are also factors related to state anxiety. In conclusion, it is considered that those populations may be more vulnerable to the psychological effects of pandemic and they should be closely followed up for longer periods.
新型冠状病毒(COVID-19)大流行是一个全球性的公共卫生问题,继续影响着世界各地人们的身体和心理。因此,在抗击COVID-19大流行的同时,诊断和管理焦虑非常重要。本研究旨在分别评估土耳其COVID-19大流行中的状态焦虑和特质焦虑。此外,旨在探讨新冠肺炎大流行中人口统计学变量与状态焦虑的关系,以及特质焦虑和躯体感觉放大与状态焦虑的关系。对2020年3月30日至4月20日期间参与在线调查的726名参与者进行了评估。所有参与者都回答了调查,调查涵盖了社会人口统计数据和关于COVID-19大流行的具体问题,以及状态-特质焦虑量表和体感放大量表。相关分析采用Pearson检验,序变量分析采用Spearman相关检验。如果参与者是女性,熟悉COVID-19阳性,有慢性疾病,目前正在接受或有精神治疗史,则状态焦虑更高。年龄、月收入、特质焦虑水平和躯体感觉放大程度也是状态焦虑的影响因素。最后,人们认为,这些人群可能更容易受到大流行病的心理影响,应该对他们进行更长时间的密切跟踪。
{"title":"State-trait anxiety levels in Turkey during COVID-19 pandemic and its relationship to somatosensory amplification","authors":"Ozlem Kazan Kizilkurt, Gürler Güz, H. Güz, N. Dilbaz","doi":"10.5835/JECM.OMU.38.01.007","DOIUrl":"https://doi.org/10.5835/JECM.OMU.38.01.007","url":null,"abstract":"Novel Coronavirus (COVID-19) pandemic which is a global public health problem continues to affect humans both physically and psychologically all around the world. So, it is important to diagnose and manage the anxiety while fighting the COVID-19 pandemic. The present study aimed to separately evaluate state and trait anxiety in the COVID-19 pandemic in Turkey. In addition, it was aimed to investigate the relation of demographic variable with state anxiety in the COVID-19 pandemic, as well as the relationship between trait anxiety and somatosensory amplification with state anxiety.726 participants who responded to online survey between March 30th and April 20th, 2020 were evaluated. All participants answered the survey that covered sociodemographic data and questions specifically about COVID-19 pandemic as well as State-Trait Anxiety Inventory and Somatosensory Amplification Scale. Pearson test was used for correlation analysis, ordinal variables were analyzed with Spearman correlation test. State anxiety is higher, if the participant is woman, has an acquaintance with the COVID-19 positivity, has a chronic medical condition and currently receiving or has history of psychiatric treatment. Age, monthly income, trait anxiety level and somatosensory amplification are also factors related to state anxiety. In conclusion, it is considered that those populations may be more vulnerable to the psychological effects of pandemic and they should be closely followed up for longer periods.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"41 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87097213","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}
引用次数: 2
Comparison of Curcumin and Methylprednisolone in Preventing Epidural Fibrosis After Spinal Surgery: An Experimental Study 姜黄素和甲基强的松龙预防脊柱术后硬膜外纤维化的实验研究
Pub Date : 2020-12-28 DOI: 10.21203/rs.3.rs-134810/v1
T. Yildirim, Ali Yilmaz, S. Köktürk, H. Işık
Aim:We aimed to compare the effectiveness of curcumin, which has been shown to inhibit cell migration and proliferation, with that of methylprednisolone, which has been shown to have a similar mechanism of action to that of curcumin and to delay tissue repair and wound healing, in the prevention of epidural fibrosis in an experimental laminectomy model in rats.Material and methods:The experiment was conducted with 40 male Wistar rats weighing 250-300 g which were divided into four groups. Laminectomy was performed from L1 to L4 in all groups. Curcumin and methylprednisolone were applied to the other two groups except the control and Dmso groups. The vertebral colon was excised en bloc and each section was examined for epidural fibrosis formation under a light microscope to evaluate histologically using the grading system.Results:The statistical analyses indicated that the treatment groups had a significant effect on the histological grades of epidural fibrosis in rats compared to the control group.Discussion:Curcumin, derived from the rhizome (Rhizoma Curcumae) of turmeric (Curcuma longa) was found to show a significant effect in the prevention of epidural fibrosis formation with its potent antioxidant and anti-inflammatory properties and by inhibiting further recruitment of fibroblasts to the laminectomy area.Conclusions:In the present study, both histological examination and statistical analyses indicated that the administration of curcumin led to a remarkable reduction in epidural fibrosis after laminectomy.
目的:我们的目的是比较姜黄素和甲基强的松龙在实验性椎板切除术大鼠模型中预防硬膜外纤维化的有效性,姜黄素已被证明具有抑制细胞迁移和增殖的作用,甲基强的松龙已被证明具有与姜黄素相似的作用机制,并延迟组织修复和伤口愈合。材料与方法:选取体重250 ~ 300 g的雄性Wistar大鼠40只,分为4组。所有组均从L1至L4行椎板切除术。除对照组和Dmso组外,其余两组均应用姜黄素和甲基强的松龙。椎结肠整体切除,在光镜下检查每个切片是否硬膜外纤维化形成,使用分级系统进行组织学评估。结果:统计学分析表明,与对照组相比,各治疗组对大鼠硬膜外纤维化的组织学分级有显著影响。讨论:姜黄素,来源于姜黄(姜黄)的根茎(姜黄),通过其有效的抗氧化和抗炎特性,以及通过抑制成纤维细胞进一步募集到椎板切除术区域,被发现在预防硬膜外纤维化形成方面显示出显著的效果。结论:在本研究中,组织学检查和统计分析都表明姜黄素的使用导致椎板切除术后硬膜外纤维化的显著减少。
{"title":"Comparison of Curcumin and Methylprednisolone in Preventing Epidural Fibrosis After Spinal Surgery: An Experimental Study","authors":"T. Yildirim, Ali Yilmaz, S. Köktürk, H. Işık","doi":"10.21203/rs.3.rs-134810/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-134810/v1","url":null,"abstract":"\u0000 Aim:We aimed to compare the effectiveness of curcumin, which has been shown to inhibit cell migration and proliferation, with that of methylprednisolone, which has been shown to have a similar mechanism of action to that of curcumin and to delay tissue repair and wound healing, in the prevention of epidural fibrosis in an experimental laminectomy model in rats.Material and methods:The experiment was conducted with 40 male Wistar rats weighing 250-300 g which were divided into four groups. Laminectomy was performed from L1 to L4 in all groups. Curcumin and methylprednisolone were applied to the other two groups except the control and Dmso groups. The vertebral colon was excised en bloc and each section was examined for epidural fibrosis formation under a light microscope to evaluate histologically using the grading system.Results:The statistical analyses indicated that the treatment groups had a significant effect on the histological grades of epidural fibrosis in rats compared to the control group.Discussion:Curcumin, derived from the rhizome (Rhizoma Curcumae) of turmeric (Curcuma longa) was found to show a significant effect in the prevention of epidural fibrosis formation with its potent antioxidant and anti-inflammatory properties and by inhibiting further recruitment of fibroblasts to the laminectomy area.Conclusions:In the present study, both histological examination and statistical analyses indicated that the administration of curcumin led to a remarkable reduction in epidural fibrosis after laminectomy.","PeriodicalId":15770,"journal":{"name":"Journal of Experimental & Clinical Medicine","volume":"57 1","pages":"88-93"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80119576","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}
引用次数: 0
期刊
Journal of Experimental & Clinical Medicine
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1