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Red Cell Distribution Width and Ratio of Red Cell Distribution Width-to-Total Serum Calcium as Predictors of Outcome of Acute Pancreatitis. 红细胞分布宽度和红细胞分布宽与血清总钙的比值作为急性胰腺炎预后的预测指标。
IF 1.1 Pub Date : 2023-01-01 Epub Date: 2023-03-27 DOI: 10.4103/ijabmr.ijabmr_286_22
Varun Gupta, Savjot Singh Narang, Chiranjiv Singh Gill, Pavneet Kaur Selhi, Manvi Gupta

Background: Current severity assessment scores of acute pancreatitis (AP) include multiple variables, the results of which are available only after 48 h of admission. Red cell distribution width (RDW) and total serum calcium (TSC) are simple routine parameters related to inflammatory status and results of which are readily available.

Aim: The aim of this study was to evaluate RDW and RDW: TSC within 24 h of hospital admission as predictors of outcome (severity and mortality) and intervention (medical/percutaneous drainage/surgical) required by patients of AP.

Materials and methods: All the patients diagnosed with AP at a tertiary care hospital were enrolled for the study. Values of RDW and TSC along with data regarding the treatment given were collected. Diagnosis and severity were defined according to the revised Atlanta classification 2012.

Results and interpretation: Cutoff value for RDW (area under the receiver operating characteristic curve [AUROC]: 0.997; P = 0.000) to predict the severity of AP was 16.25% (sensitivity - 100% and specificity - 97.1%,) (sensitivity - 100% and specificity - 97.1%, positive predictive value - 92.31%, negative predictive value - 100%, and Youden Index - 0.971), while that of RDW:TSC (AUROC: 1; P = 0.000) was 2.42 (sensitivity - 100%; specificity - 100%, positive predictive value - 100%, negative predictive value - 100%, and Youden Index - 1.00). Similarly, the cutoff value for RDW (AUROC: 0.947; P = 0.000) to predict mortality in AP was 17.20% (sensitivity - 100%; specificity - 87.4%, positive predictive value - 38.89%, negative predictive value - 100%, and Youden Index - 0.874) and that of RDW-to-TSC ratio (AUROC: 0.975; P = 0.000) was 2.9 (sensitivity - 100%; specificity - 96.6%, positive predictive value - 70%, negative predictive value - 100%, and Youden Index - 0.966).

Conclusion: Our study found that RDW and RDW: TSC were quick, convenient, economic, sensitive, and dependable prognostic predictors of severity and mortality in patients with AP.

背景:目前急性胰腺炎(AP)的严重程度评估评分包括多个变量,其结果只有在入院48小时后才能获得。红细胞分布宽度(RDW)和血清总钙(TSC)是与炎症状态相关的简单常规参数,其结果很容易获得。目的:本研究的目的是评估住院24小时内的RDW和RDW:TSC作为AP患者所需的结果(严重程度和死亡率)和干预(医疗/经皮引流/手术)的预测因素。材料和方法:所有在三级护理医院诊断为AP的患者都被纳入本研究。收集RDW和TSC的值以及与所给予的治疗有关的数据。诊断和严重程度根据2012年修订的Atlanta分类进行定义。结果和解释:预测AP严重程度的RDW(受试者工作特征曲线下面积[AURC]:0.997;P=0.000)的截止值为16.25%(敏感性为-100%,特异性为97.1%)(敏感性-100%,特异性-97.1%,阳性预测值-92.31%,阴性预测值-100%,尤登指数-0.971),而RDW:TSC(AUROC:1;P=0.000)为2.42(敏感性-1000%;特异性-100%,阳性预报值-100%、阴性预报值-1000%,尤登指数-1.00)。类似地,RDW(AUROC:0.947;P=0.000)预测AP死亡率的临界值为17.20%(敏感性为100%;特异性为87.4%,阳性预测值为38.89%,阴性预测值为100%,Youden指数为0.874),RDW与TSC的比值(AUROC=0.975;P=0.0000)为2.9(敏感性-100%;特异性-96.6%,阳性预测值-70%,阴性预测值-100%,Youden指数-0.966)。结论:我们的研究发现,RDW和RDW:TSC是AP患者严重程度和死亡率的快速、方便、经济、敏感和可靠的预后预测因子。
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引用次数: 0
Validity and Reliability of Students’ Assessment: Case for Recognition as a Unified Concept of Valid Reliability 学生评价的效度与信度:作为有效信度统一概念的认知案例
Pub Date : 2023-01-01 DOI: 10.4103/ijabmr.ijabmr_382_23
Kapil Gupta
Students’ assessment, the major component of learning cycle, and curriculum serve many functions.[1-4] Assessment suggests areas of improvement during the training; the selection of students based on performance helps in the evaluation of the program and also has predictive utility. The assessment can be of learning – summative assessment, for learning - formative assessment, and can be without any external supervision – internal assessment. The importance and necessity of assessment in the learning cycle of the students can be gauged from the wordings of various proverbs in use, such as – ”assessment derives learning,” “assessment leads to learning,” and “assessment are the tail that wags the curriculum dog.” The students do modify their learning as per assessment. To make a precise decision about student’s learning and competency, the assessment must have both measurable and nonmeasurable components.[5] Van der Vleuten and Schuwirth defined assessment “as any formal or purported action to obtain information about the competence and performance of a student.”[6] Further, the assessment can be either criterion-referenced-comparing the competence of students against some fixed criteria or norm-referenced-comparing the performance of students with each other. Besides an aid to learning by virtue of having a provision of feedback and thus improve learning, assessment has reverse side too-improperly designed assessment can disfigure the learning. Therefore, any assessment should possess certain qualities or attributes. Traditional Concept Two important attributes defining students’ assessment are – reliability and validity. Conventionally, reliability of an assessment tool has commonly been referred to as “reproducibility” or “getting the same scores/marks under same conditions” or “precision of the measurement” or “consistency with which a test measures what it is supposed to assess.”[7] Reliability is measurable. As per classical test theory, the alpha coefficient (AC) is a range from 0 (no reliability) to 1 (perfect reliability); so if the test has an AC of 0.8%, it means it has a reliability of 80%, while measurement error is 20%.[8] The major factor affecting reliability is content or domain specificity. How an assessment can be reliable if it is based on a limited sampling of content or large content has been included in a single sample or if it is based on a single test? Moreover, a score that is derived from solving one problem cannot be interpolated for the second one. For example, assessment scores that are based on a single long case or viva for a single patient sample cannot produce reliable scores for another problem. If at the end of any professional year, subject knowledge is assessed by single multiple-choice questions (MCQs) based test of 10 items, can it measure students’ knowledge for the whole subject? Such assessments can be held valid but not reliable. Therefore, for any assessment test to be reliable, it is important to have a
学生评价是学习周期的主要组成部分,课程具有多种功能。[1-4]评估提出了培训过程中需要改进的地方;根据学生的表现选择学生有助于对项目进行评估,并具有预测效用。评估可以是学习-总结性评估,学习-形成性评估,也可以是没有任何外部监督-内部评估。评价在学生学习周期中的重要性和必要性,可以从“评价衍生学习”、“评价引导学习”、“评价是摇课程狗的尾巴”等各种谚语中判断出来。学生们确实会根据评估来调整他们的学习。要对学生的学习和能力做出准确的判断,评估必须既有可测量的成分,也有不可测量的成分Van der Vleuten和Schuwirth将评估定义为“获得学生能力和表现信息的任何正式或据称的行动”。此外,评估可以是标准参照的——将学生的能力与一些固定的标准进行比较,也可以是规范参照的——将学生的表现与其他学生进行比较。除了通过提供反馈来帮助学习从而改善学习之外,评估也有反面——设计不当的评估会破坏学习。因此,任何评估都应该具备某些品质或属性。传统观念定义学生评价的两个重要属性是信度和效度。传统上,评估工具的可靠性通常被称为“可重复性”或“在相同条件下获得相同的分数/标记”或“测量的精度”或“测试测量它应该评估的内容的一致性”。可靠性是可测量的。根据经典测试理论,α系数(AC)的取值范围为0(无信度)到1(完全信度);因此,如果测试的AC为0.8%,则意味着它的可靠性为80%,而测量误差为20%影响可靠性的主要因素是内容或域的专用性。如果评估是基于有限的内容抽样,或在单个样本中包含了大量内容,或基于单个测试,评估如何可靠?此外,从解决一个问题中得到的分数不能用于第二个问题。例如,基于单个长期病例或单个患者样本的评估分数不能为另一个问题产生可靠的分数。如果在任何一个专业学年结束时,学科知识都是通过单项选择题(mcq)来评估的,它能衡量学生对整个学科的知识吗?这种评估可以被认为是有效的,但并不可靠。因此,对于任何可靠的评估测试,重要的是要有整个内容的表示以及足够的抽样。此外,通过增加测试时间,将整个内容分成多个测试而不是单个测试,以及选择一系列测试来访问相同的能力,也可以提高可靠性。许多研究已经观察到,如果我们增加测试时间并进行适当的采样,许多评估工具/方法几乎可以获得相同的可靠性分数。[9-15]效度是好的评估的另一个重要特征,通常被定义为测量它想测量的东西。效度是一个统一的概念,证据可以从内容、结构相关和经验证据等多个方面获得;因此,评估的效度不能像信度那样用一个单一的系数来表示。例如,如果尿血蛋白的表现是一年级本科医学培训的一部分,而这些没有在技能考试中评估,那么内容相关的效度就会受到威胁。构念效度包括许多属性,主要关注学生在学科知识、技能、数据收集和分析、解释、沟通、道德等方面的问题解决能力。因此,传统的概念仅限于评估工具的有效性和可靠性,并将其视为独立和不相关的实体[图1]。图1:效度和信度的传统概念当代观点最近,我们已经从评估工具的效度和信度的历史概念中走了出来。现在,出于教育目的,我们对评估工具的可靠性不感兴趣。现在,更重要的方面是我们如何使用这个工具使结果可靠。 因此,按照当代的观点,我们真正感兴趣的是——对我们的评估结果的“可靠性”——我们在多大程度上相信我们的评估结果来对学生做出最终的判断。同样,当代的效度概念侧重于我们对评估数据的解释,而不是评估工具的效度。所以人们常说,没有评估工具/方法本质上是无效的,更重要的是,我们从使用该工具进行的评估中得出什么结论。例如,如果设计mcq是为了检查事实知识,那么它将测量事实知识;但是,如果此类mcq中内置了一些基于案例的场景或针对任何疾病的一些管理计划,它将评估学生解决问题的能力。同样,如果在理论考试中,询问了引发条件反射的步骤,并且学生被证明具有条件反射的技能,那么结果将无效。因此,特定工具测量的内容并不取决于工具,而是取决于我们将什么放入工具中,或者从使用该工具的结果中得出什么解释。用任何统计方法衡量任何评估的可靠性,都应始终推导出来,同时牢记评估的有效性。当代的效度概念认为,效度是一个从包括内容、标准、结构和信度证据在内的各种经验证据中推导出来的统一概念信度值在信度差的情况下没有意义。因此,根据当代观点,评估的有效性来自各种证据,包括可靠性证据,因此有效性和可靠性不再被视为独立的实体,孤立地工作[图2]。图2:当代对效度和信度的看法尽管当代的观点建立了评估的信度和效度之间的关系,以至于我们开始考虑得出效度结论所必需的可靠性证据,但相反的情况仍然是不正确的。效用概念的评估基于这些事实,Vleuten推导的效用评估的概念作为估计产品的可靠性、有效性、可行性、可接受性,和教育的影响,[17]而Vleuten和Schuwirth 2005年进一步提出一个修改的概念模型来计算乘法模型的效用的评估不同属性的微分weightage,效用V = R××E××C, R =可靠性,V =效度,EI =教育影响,A =可接受性,C =成本效益该模型还指出,不可能有完美的评价,如果一个属性的权重较高,另一个属性的不足可以得到补偿;取决于评估的背景和目的。例如,在高风险考试中,高可靠性的评估将更有价值,而对于任何多次出现的课堂测试,教育影响将是一个更可观的标准。该模型的乘法性质还确保,如果一个变量为0,则评估的总体效用自动变为0。同样,如果任何一个变量是消极的- -从而促进不健全的学习习惯- -评估的效用也将是消极的。有效信度:一个理论概念如上所述,多年来,我们一直将评估的效度和信度视为单独的度量。与当代观点和实用新型建立了相互关系;但是,我们仍然认为效度和信度是独立存在的实体。然而,你要考虑到,如果任何测量总是测量一个错误的构念,它可以说是可靠的,而效度是危险的;但在实践中,如果任何测量都没有测量它想要测量的东西,我们能依赖它的测量吗?一点也不!虽然由于效度问题,信度明显存在,但我们不能依靠评估结果来做出有效可靠的推断。类似地,如果任何评估是测量正确的构念,但不是以一致的方式,它被认为是有效的,不可靠的,但是偶尔的,准确的构念测量对做出有效和可靠的推论是没有用的。有效性和可靠性是相辅相成的,正如一个可量化的联系所证明的那样。据文献记载,信度的平方根几乎等于可达到的最大效度。例如,如果某项测试的信度系数为0.79,则效度系数不能大于0.88,其本身就是0.79的平方根。因此,它清楚地暗示,评估方法只有在有效和可靠的情况下才有用。 [19]如上所述,效度现在被认为是一个统一的概念,信度证据是效度的重要组成部分;因此,效度和信度是相互关联的。文献中也记载了效度和信度之间的权衡——信度基础越强,效度基础越弱(反之亦然)然而,这两个仍然被认为是不同的概念——信度证据被认为是评估效度的必要条件,但效度贡献对评估的信度又如何呢?当我们将学生评估的有效性作为一个与我们对评估数据的推断相关的概念,将学生评估的可靠性作为一个与评估推断的信任相关的概念来考虑时,这一点就变得更加重要了,两者似乎是相互关联的[图3]。图3:学生评估的效度和信度的概念表示让我们用一个简单的例子来讨论它。如果在考前会议上,所有的考官都决定在实际考试中不给任何一个学生超过80%和低于50%的分数,并且已经用
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引用次数: 0
Are Buffy-coat Pooled Platelet Concentrates an Effective Alternative to Apheresis Platelet Concentrates? An In vitro Analysis at a Tertiary Care Center in Northern India 褐皮池血小板浓缩物是一种有效的血小板浓缩物替代单采血小板浓缩物吗?在印度北部三级保健中心的体外分析
Pub Date : 2023-01-01 DOI: 10.4103/ijabmr.ijabmr_73_23
Prashant Agarwal, Ashish Jain, Priti Elhence, Anupam Verma
Background: There is a need for platelet products to have the best quality. Apheresis platelet concentrates (PCs) obtained from single-donors PCs (SD-PCs) are considered best but have issues such as feasibility and cost. Buffy-coat pooled PCs (BCP-PCs) are considered an alternative to SD-PCs. This study compares BCP-PCs and SD-PCs for in vitro quality parameters and their changes during storage. Materials and Methods: Fifteen units of BCP-PCs and 15 units of SD-PCs were prepared. In this study, a pool of five buffy coats was prepared. Fifteen units of BCP-PCs were analyzed on day 1 and day 5 of storage, while 15 SD-PCs were analyzed on day 1 while ten units on day 5. The parameters analyzed were volume, hematological parameters, pH, swirling, and sterility. Results: The mean platelets count of SD-PCs was found to be significantly higher as compared to BCP-PCs. White blood cells (WBCs) contamination was significantly lower in BCP-PCs as compared to SD-PCs. The mean pH and mean platelet volume of SD-PCs were significantly lower than BCP-PCs. During storage, the mean platelets count of BCP-PCs was decreased significantly while that of SD-PCs nonsignificantly. The mean WBCs count and pH decreased in both BCP-PCs and SD-PCs significantly. All units in both types of PCs were sterile. Conclusion: Platelet yield was significantly better in SD-PCs, while mean WBCs contamination was significantly lower in BCP-PCs. BCP-PCs may be preferred in place of SD-PCs in case of nonavailability of apheresis, difficulty in finding a willing donor, or when the cost is of consideration.
背景:血小板产品需要有最好的质量。单供血小板浓缩液(SD-PCs)被认为是最好的,但存在可行性和成本等问题。Buffy-coat pool pc (bcp - pc)被认为是sd - pc的替代品。本研究比较了BCP-PCs和SD-PCs的体外质量参数及其在贮存期间的变化。材料与方法:制备BCP-PCs 15个单位,SD-PCs 15个单位。在这项研究中,准备了一个由5只灰褐色外套组成的水池。BCP-PCs在第1天和第5天分析15个单位,SD-PCs在第1天分析15个单位,在第5天分析10个单位。分析的参数包括体积、血液学参数、pH、旋流和无菌性。结果:SD-PCs的平均血小板计数明显高于BCP-PCs。与SD-PCs相比,BCP-PCs的白细胞污染显著降低。SD-PCs的平均pH值和平均血小板体积显著低于BCP-PCs。储存期间,BCP-PCs的平均血小板计数显著下降,而SD-PCs的平均血小板计数无显著下降。BCP-PCs和SD-PCs的平均白细胞计数和pH均显著降低。两种pc机的所有单元都是无菌的。结论:SD-PCs的血小板产率明显较高,而BCP-PCs的白细胞平均污染明显较低。在无采血、难以找到自愿供体或考虑到成本的情况下,BCP-PCs可能优于SD-PCs。
{"title":"Are Buffy-coat Pooled Platelet Concentrates an Effective Alternative to Apheresis Platelet Concentrates? An In vitro Analysis at a Tertiary Care Center in Northern India","authors":"Prashant Agarwal, Ashish Jain, Priti Elhence, Anupam Verma","doi":"10.4103/ijabmr.ijabmr_73_23","DOIUrl":"https://doi.org/10.4103/ijabmr.ijabmr_73_23","url":null,"abstract":"Background: There is a need for platelet products to have the best quality. Apheresis platelet concentrates (PCs) obtained from single-donors PCs (SD-PCs) are considered best but have issues such as feasibility and cost. Buffy-coat pooled PCs (BCP-PCs) are considered an alternative to SD-PCs. This study compares BCP-PCs and SD-PCs for in vitro quality parameters and their changes during storage. Materials and Methods: Fifteen units of BCP-PCs and 15 units of SD-PCs were prepared. In this study, a pool of five buffy coats was prepared. Fifteen units of BCP-PCs were analyzed on day 1 and day 5 of storage, while 15 SD-PCs were analyzed on day 1 while ten units on day 5. The parameters analyzed were volume, hematological parameters, pH, swirling, and sterility. Results: The mean platelets count of SD-PCs was found to be significantly higher as compared to BCP-PCs. White blood cells (WBCs) contamination was significantly lower in BCP-PCs as compared to SD-PCs. The mean pH and mean platelet volume of SD-PCs were significantly lower than BCP-PCs. During storage, the mean platelets count of BCP-PCs was decreased significantly while that of SD-PCs nonsignificantly. The mean WBCs count and pH decreased in both BCP-PCs and SD-PCs significantly. All units in both types of PCs were sterile. Conclusion: Platelet yield was significantly better in SD-PCs, while mean WBCs contamination was significantly lower in BCP-PCs. BCP-PCs may be preferred in place of SD-PCs in case of nonavailability of apheresis, difficulty in finding a willing donor, or when the cost is of consideration.","PeriodicalId":13727,"journal":{"name":"International Journal of Applied and Basic Medical Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135844140","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
Circulating 18-Glycosyl Hydrolase Protein Chitiotriosidase-1 is Associated with Renal Dysfunction and Systemic Inflammation in Diabetic Kidney Disease 循环18-糖基水解酶蛋白几丁三酸苷酶-1与糖尿病肾病肾功能障碍和全身炎症相关
Pub Date : 2023-01-01 DOI: 10.4103/ijabmr.ijabmr_42_23
Kuppuswami Jayashree, Gandhipuram Periyasamy Senthilkumar, Mehalingam Vadivelan, Sreejith Parameswaran
Introduction: Chitotriosidase-1 (CHIT-1) is a marker of macrophage activation and recently attributed to type 2 diabetes mellitus (T2DM). However, its role in the development and progression of diabetic kidney disease (DKD) has been sparsely discussed in the recent literature. Materials and Methods: In this cross-sectional exploratory study, 81 participants with T2DM were classified into two groups based on the presence of DKD. Their anthropometric, biochemical, and pathological profiles were estimated. Circulatory CHIT-1 concentration was determined using the enzyme-linked immuno-sorbent assay (ELISA) in plasma. Results: CHIT-1 was significantly elevated in diabetic nephropathy, independent of age and gender. It is associated with severity of kidney disease, as assessed using urinary protein-creatinine ratio (uPCR) in a multiple linear regression model, independent of age, gender, diabetes duration, and insulin resistance. CHIT-1 positively predicted the likelihood of DKD in the study population (area under the curve = 0.724, P < 0.05). The duration of diabetes correlated positively with uPCR and negatively with estimated glomerular-filtration rate. Neutrophil-Lymphocyte ratio was elevated in participants with DKD. This well-established marker of systemic inflammation exhibited significant positive association with CHIT-1. Conclusion: Plasma CHIT-1 protein is elevated in DKD and associated with disease progression. It is capable of reflecting disease severity and is closely related to systemic inflammation possibly caused by pro-inflammatory circulatory immune cells.
Chitotriosidase-1 (CHIT-1)是巨噬细胞激活的标志物,最近被认为与2型糖尿病(T2DM)有关。然而,其在糖尿病肾病(DKD)发生和进展中的作用在最近的文献中很少讨论。材料和方法:在这项横断面探索性研究中,81名T2DM患者根据是否存在DKD被分为两组。评估了他们的人体测量、生化和病理特征。采用酶联免疫吸附试验(ELISA)测定血浆中循环CHIT-1浓度。结果:CHIT-1在糖尿病肾病患者中显著升高,与年龄和性别无关。尿蛋白-肌酐比值(uPCR)在多元线性回归模型中评估,与肾脏疾病的严重程度相关,与年龄、性别、糖尿病病程和胰岛素抵抗无关。CHIT-1正预测研究人群发生DKD的可能性(曲线下面积= 0.724,P <0.05)。糖尿病病程与uPCR呈正相关,与肾小球滤过率呈负相关。中性粒细胞-淋巴细胞比率在DKD患者中升高。这一公认的全身性炎症标志物与CHIT-1呈显著正相关。结论:DKD患者血浆CHIT-1蛋白升高并与疾病进展相关。它能够反映疾病的严重程度,与可能由促炎循环免疫细胞引起的全身性炎症密切相关。
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引用次数: 0
Relationship between Hemispheric Preference Score and Academic Performance among Preclinical Medical Students Studying Medicine and Dentistry. 医学和牙科临床前医学生半球偏好得分与学习成绩的关系。
IF 1.1 Pub Date : 2023-01-01 Epub Date: 2023-03-27 DOI: 10.4103/ijabmr.ijabmr_440_22
Laxman Khanal, Sandip Shah, Sarun Koirala, Jyotsna Rimal, Baikuntha Raj Adhikari, Dharanidhar Baral
Background: Understanding the style of learning and thinking (SOLAT) of the students is necessary to keep students actively involved in learning, which could influence the academic performance of the students. Aim: The objective of this study was to compare the right and left hemisphere preferences for processing information with academic performance of medical students in both theory and practical exams. Materials and Methods: The hemispheric preference score for learning and thinking style among first year MBBS (95) and BDS (42) students was determined by SOLAT tool prepared by Dr. V. Venkataraman (1994). A comparison of the hemispheric score between high achievers and low achievers in theory and practical exams was performed by using the unpaired Student's t-test and Mann–Whitney U-test. Results: The mean hemispheric scores for the right hemisphere, left hemisphere, and whole brain were 26.51, 14.5, and 6.76, respectively. High achievers in theory exam and practical exam received a higher left-hemispheric score and whole-brain score than low achievers; the difference in the mean value of hemispheric score was statistically not significant. Conclusion: There was no statistically significant relationship between academic achievement and hemispheric preference scores.
背景:了解学生的学习风格和思维方式是保持学生积极参与学习的必要条件,这可能会影响学生的学习成绩。目的:本研究的目的是比较医学生在理论和实践考试中对信息处理的左右半球偏好与学习成绩。材料和方法:采用V.Venkataraman博士(1994)编制的SOLAT工具测定了MBBS(95)和BDS(42)一年级学生对学习和思维方式的半球偏好得分。采用未配对的Student’s t检验和Mann-Whitney U检验对理论和实践考试中成绩优异者和成绩较差者的半球得分进行了比较。结果:右半球、左半球和全脑的平均半球得分分别为26.51、14.5和6.76。理论考试和实践考试成绩好的学生左半球和全脑得分高于成绩差的学生;半球评分平均值差异无统计学意义。结论:学习成绩和半球偏好得分之间没有统计学上的显著关系。
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引用次数: 0
Pulmonary Hypertension, an Echo Assessment: Is it Arterial or Venous? 肺动脉高压,回声评估:是动脉还是静脉?
IF 1.1 Pub Date : 2023-01-01 Epub Date: 2023-03-27 DOI: 10.4103/ijabmr.ijabmr_502_22
Vivek Sullere, Shivang Sullere, Idris Ahmed Khan, Rajendra G Goyal

Introduction: Pulmonary hypertension (PH) is characterized by pulmonary vascular remodeling, right heart failure, and reduced survival. PH can be PH without left ventricular (LV) dysfunction - pulmonary arterial hypertension (PAH) - (Dana point Class I) and PH with LV dysfunction - pulmonary venous hypertension (PVH) - (Dana point Class II). Whatever the underlying cardiac disease, the presence of PH in patients with heart failure is associated with poor prognosis. Right ventricular dysfunction by ventricular interdependence can cause LV dysfunction.

Objective: We aim to provide a distinction between PAH and PVH by echocardiography.

Methods: Retrospective cross-sectional single-center data of 1075 subjects having PH as defined by echocardiography was collected. These were segregated into mild, moderate, and severe categories. The same cohort of PH subjects was also segregated by E/e' derived pulmonary capillary wedge pressure (PCWP) values. Echocardiographic measurements and effort tolerance in Mets were analyzed. Data for 707 normal subjects were taken from an earlier published study on normative echocardiographic measurements of healthy Indians.

Results: Our findings show that PAH and PVH can be distinguished using PCWP value >15 mmHg obtained by applying Nagueh's formulaon E/e'.

Conclusion: We recommend that PCWP derived from E/e' should be reported with pulmonary artery systolic pressure measurement to distinguish between PAH and PVH.

引言:肺动脉高压(PH)的特点是肺血管重构、右心衰竭和生存率下降。PH可以是没有左心室(LV)功能障碍-肺动脉高压(PAH)-(Dana点I级)的PH,也可以是有左心室功能障碍-肺静脉高压(PVH)-。无论潜在的心脏病是什么,心力衰竭患者中PH的存在都与预后不良有关。心室相互依赖引起的右心室功能障碍可导致左心室功能障碍。目的:我们的目的是通过超声心动图来区分PAH和PVH。方法:回顾性收集1075例经超声心动图定义的PH患者的横断面单中心数据。这些症状被分为轻度、中度和重度。同一组PH受试者也通过E/E’衍生的肺毛细血管楔压(PCWP)值进行了分离。分析了Mets的超声心动图测量和努力耐受性。707名正常受试者的数据取自早期发表的一项关于健康印度人标准超声心动图测量的研究。结果:我们的研究结果表明,通过应用Nagueh公式E/E'获得的PCWP值>15mmHg,可以区分PAH和PVH区分PAH和PVH。
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引用次数: 0
Mechanism of Action of Natural Dipeptidyl Peptidase-IV Inhibitors (Berberine and Mangiferin) in Experimentally Induced Diabetes with Metabolic Syndrome 天然二肽基肽酶- iv抑制剂(小檗碱和芒果苷)在实验性糖尿病伴代谢综合征中的作用机制
Pub Date : 2023-01-01 DOI: 10.4103/ijabmr.ijabmr_115_23
Rajesh Kumar Suman, Manjusha K Borde, Ipseeta Ray Mohanty, Hemant Kumar Singh
Background: Berberine (BER) and mangiferin are known natural dipeptidyl peptidase (DPP-IV) inhibitors. Hence, the study was designed to elucidate the mechanism of action of natural DPP-IV inhibitors (BER and MNG) in experimentally induced diabetes with metabolic syndrome. Aim: The aim of this study was to observe mechanism through which natural DPP-IV inhibitor works in diabetes with metabolic syndrome rat model. Materials and Methods: Wistar rats were fed high-fat diet for 10 weeks and challenged with streptozotocin (STZ) (40 mg/kg) at the 3 rd week (high-fat diabetic control [HF-DC] group). After the confirmation of metabolic syndrome in the setting of diabetes, monotherapy (metformin [MET], vildagliptin [VIL], BER, and MNG) and combination (MET + VIL, MET + BER, and MET + MNG) therapy was orally fed to these rats from the 4 th to 10 th weeks. Results: Insulin resistance (IR) was seen in the HF-DC group as indicated by raised homeostasis model assessment of IR (HOMA-IR) in HF-DC group as compared with normal control (NC) groups. The treatment groups reduced IR as shown by a decrease in HOMA-IR as compared with HF-DC group rats. The marked reduction ( P < 0.001) of beta-cell function was observed in the HF-DC group as a reduced level of HOMA for beta-cell function (HOMA-β) was found as compared with the NC group. Increases in HOMA-β as compared to the HFDC group were observed in the therapy groups. The treatment group significantly reduced cholesterol and atherogenic index. The treatment group showed significant preservation of beta-cell mass as per immunohistochemistry and significant anti-apoptotic activity as per Terminal Deoxyribonucleotidyl Transferase-Mediated dUTP Nick End Labeling assay report. The treated rats significantly ( P < 0.05) reduced high-sensitivity C-reactive protein. Lipid peroxidation (thiobarbituric acid reactive substances) marker ( P < 0.001) was significantly reduced in the treatment group. Conclusion: The natural DPP-IV inhibitors BER and MNG treatment showed beneficial effects on various components of metabolic syndrome.
背景:小檗碱(BER)和芒果苷(mangiferin)是已知的天然二肽基肽酶(DPP-IV)抑制剂。因此,本研究旨在阐明天然DPP-IV抑制剂(BER和MNG)在实验性糖尿病伴代谢综合征中的作用机制。目的:观察天然DPP-IV抑制剂在糖尿病伴代谢综合征大鼠模型中的作用机制。材料与方法:Wistar大鼠饲喂高脂饲料10周,第3周采用链脲佐菌素(STZ) (40 mg/kg)灌胃(高脂糖尿病对照组[HF-DC]组)。在糖尿病背景下确认代谢综合征后,从第4周至第10周口服单药治疗(二甲双胍[MET]、维格列汀[VIL]、BER和MNG)和联合治疗(MET + VIL、MET + BER和MET + MNG)。结果:与正常对照(NC)组相比,HF-DC组胰岛素抵抗(IR)的动态平衡模型评估(HOMA-IR)升高。与HF-DC组大鼠相比,治疗组降低了IR, HOMA-IR降低。显著降低(P <与NC组相比,HF-DC组β细胞功能(HOMA-β)水平降低。与HFDC组相比,在治疗组中观察到HOMA-β升高。治疗组明显降低胆固醇和动脉粥样硬化指数。根据免疫组织化学,治疗组显示出显著的β细胞质量保存,根据末端脱氧核糖核苷酸转移酶介导的dUTP尼克末端标记分析报告,治疗组显示出显著的抗凋亡活性。(P <0.05)高敏c反应蛋白降低。脂质过氧化(硫代巴比妥酸活性物质)标志物;0.001),治疗组显著降低。结论:天然DPP-IV抑制剂BER和MNG治疗对代谢综合征各成分均有有益作用。
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引用次数: 0
Reliability of Grayscale Value for Bone Density Determination in Oral Rehabilitation using Dental Implants 牙种植体口腔康复中骨密度灰度值测定的可靠性
Pub Date : 2023-01-01 DOI: 10.4103/ijabmr.ijabmr_3_23
Shalu Rai, Deepankar Misra, Akansha Misra, Himanshi Tomar, Ayush Dhawan, Rohit Gupta
Introduction: Quality and quantity of jaw bones have been previously classified in literature using different methods. Imaging modalities such as computed tomography (CT), successfully determine bone density of jaws. This study aims to establish the role of cone-beam CT (CBCT) in determining the density of cortical and cancellous bones at different jaw sites. Materials and Methods: Eighty-three possible implant sites in healthy patients were evaluated using NewTomGiano CBCT machine. Cross-sections were obtained and cortical and cancellous bone densities on different aspects of the virtual implant in terms of Hounsfield unit (HU) were determined using New Net Technologies software version 6.1 and were classified according to software from D1 to D4. Data were entered into SPSS software (version 19.0) and were statistically analyzed. Results: The mean HU showed the highest value for cortical and cancellous in the anterior mandible (mean HU 1874.01 and 1131.73, respectively) followed by the posterior mandible (mean HU 1789.20 and 872.95, respectively) and least in posterior maxilla (mean HU 1068.26 and 830.04, respectively). Maximum D1 bone type was found in cortical bone and D2 bone type was noted in cancellous bone area. Males showed very highly significant cortical bone thickness ( P < 0.001) whereas females showed more cancellous bone thickness but the results were nonsignificant. Conclusion: A high degree of concordance between different regions of jaw bones with a strong correlation between the four bone types was obtained. Bone density plays a pivotal role in determining the prognosis of the implant. CBCT has proven to be beneficial in bone density analysis.
文献中已经用不同的方法对颌骨的质量和数量进行了分类。成像方式,如计算机断层扫描(CT),成功地确定颌骨的骨密度。本研究旨在建立锥形束CT (CBCT)在确定不同颌骨部位皮质骨和松质骨密度中的作用。材料与方法:使用NewTomGiano CBCT机对健康患者的83个可能的种植部位进行评估。采用New Net Technologies软件版本6.1获取虚拟种植体的横截面,以Hounsfield单位(HU)计算虚拟种植体不同方面的皮质骨密度和松质骨密度,并根据软件从D1到D4进行分类。数据输入SPSS软件(19.0版)进行统计分析。结果:前颌骨皮质和松质层平均HU最高,分别为1874.01和1131.73,后颌骨次之,分别为1789.20和872.95,后颌骨最低,分别为1068.26和830.04。皮质骨区D1骨型最多,松质骨区D2骨型最多。男性的皮质骨厚度非常显著(P <0.001),而女性表现出更多的松质骨厚度,但结果不显著。结论:颌骨的不同区域之间具有高度的一致性,四种骨类型之间具有很强的相关性。骨密度在决定种植体预后方面起着关键作用。CBCT已被证明在骨密度分析中是有益的。
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引用次数: 0
Benign Mesenteric Lesion Presenting with Features of a Malignant Mass 肠系膜良性病变具有恶性肿块的特征
Pub Date : 2023-01-01 DOI: 10.4103/ijabmr.ijabmr_77_23
Josefina Principe, Anna Mary Jose, Santiago Niño Basto, Isabela Castañeda, Abdul Rafay Pasha
Encapsulated fat necrosis (EFN), most commonly, is an asymptomatic entity and is often found incidentally in images. However, in the abdomen, it may present as an acute abdomen. Mesenteric fat necrosis is part of a larger disease spectrum called collectively mesenteric sclerosis. It results in forming of a mass that can be confused with other pathologies such as liposarcoma, carcinoma of the cecum, and other more benign conditions such as appendagitis of the epiplon. We present the case of an 82-year-old male who presented with an asymptomatic right lower quadrant mass with concerning computed tomography findings with no previous abdominal surgery or trauma history. Diagnosing EFN is crucial as it can mimic bowel cancer and immune-related mesenteric pathology such as sclerosing mesenteritis, the management of which is far more extreme and aggressive than EFN.
包裹性脂肪坏死(EFN)是一种无症状的实体,通常在图像中偶然发现。然而,在腹部,它可能表现为急腹症。肠系膜脂肪坏死是肠系膜硬化症的一部分。它会形成一个肿块,容易与其他病理混淆,如脂肪肉瘤、盲肠癌和其他更良性的疾病,如阑尾炎。我们提出一个82岁的男性谁提出了一个无症状的右下腹肿块与相关的计算机断层扫描结果,没有以前的腹部手术或创伤史。诊断EFN是至关重要的,因为它可以模拟肠癌和免疫相关的肠系膜病理,如硬化性肠系膜炎,其治疗比EFN更为极端和侵袭性。
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引用次数: 0
One More Chance to See the World: A Rare Case Report on Sphenoid Mucocele Causing Vision Loss 再一次看世界的机会:一个罕见的蝶骨粘液囊肿导致视力丧失的病例报告
Pub Date : 2023-01-01 DOI: 10.4103/ijabmr.ijabmr_98_23
Sharulatha Raguraman, Akshat Kushwaha, P. Lokesh Kumar, Sunil Kumar Saxena
Mucocele of the sphenoid sinus is one of the rare diseases which an ENT surgeon can encounter in a clinical setup. It can often present as a chronic headache. It can remain undiagnosed unless a symptom due to the compression effect of the mucocele, such as diminution of vision, ophthalmoplegia, or any intracranial complication, occurs. Early diagnosis and emergency surgical intervention are imperative to prevent complications. Although late presentation can have a risk of permanent vision loss, improvement in vision postsurgery does not necessarily depend on the duration of symptoms. Here, we present a rare case scenario where, even after the delayed presentation, the patient had a significant vision improvement postsurgery.
蝶窦黏液囊肿是耳鼻喉外科医生在临床工作中遇到的罕见疾病之一。它通常表现为慢性头痛。除非出现由于黏液囊肿的压迫作用而引起的症状,如视力下降、眼麻痹或任何颅内并发症,否则可不予诊断。早期诊断和紧急手术干预是预防并发症的必要条件。虽然延迟出现可能有永久性视力丧失的风险,但术后视力的改善并不一定取决于症状的持续时间。在这里,我们提出一个罕见的情况,即使延迟后的表现,病人有明显的术后视力改善。
{"title":"One More Chance to See the World: A Rare Case Report on Sphenoid Mucocele Causing Vision Loss","authors":"Sharulatha Raguraman, Akshat Kushwaha, P. Lokesh Kumar, Sunil Kumar Saxena","doi":"10.4103/ijabmr.ijabmr_98_23","DOIUrl":"https://doi.org/10.4103/ijabmr.ijabmr_98_23","url":null,"abstract":"Mucocele of the sphenoid sinus is one of the rare diseases which an ENT surgeon can encounter in a clinical setup. It can often present as a chronic headache. It can remain undiagnosed unless a symptom due to the compression effect of the mucocele, such as diminution of vision, ophthalmoplegia, or any intracranial complication, occurs. Early diagnosis and emergency surgical intervention are imperative to prevent complications. Although late presentation can have a risk of permanent vision loss, improvement in vision postsurgery does not necessarily depend on the duration of symptoms. Here, we present a rare case scenario where, even after the delayed presentation, the patient had a significant vision improvement postsurgery.","PeriodicalId":13727,"journal":{"name":"International Journal of Applied and Basic Medical Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135844452","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
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International Journal of Applied and Basic Medical Research
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