scholarly journals The Relationship between Blood Type and Cutaneous Leishmaniasis in Iran (A Review)

Author(s):  
Mohsen Hesami Arani ◽  
Mohammadreza Abedzadeh ◽  
Mehnoosh Nasiri ◽  
Mahdiyeh Mohammadzadeh

Introduction: Cutaneous leishmaniasis is one of the health concerns in Iran. Numerous studies have examined the role of blood type in people with the disease. Therefore, this study aimed to investigate the prevalence of leishmaniasis in different blood groups as a review in Iran. Materials and Methods: For this review, two researchers evaluated the extracted articles in terms of relevance to the purpose of the study after searching four databases, including Scopus, Web of Science, PubMed, and Science Direct. Literature reports on the prevalence of leishmaniasis in different blood groups in Iran until the end of March 2021. Relevant information included study time, study tool, number of subjects, mean age, and the relationship between blood type and infection which were recorded in Excel form. Results: After searching, screening, and qualitative evaluation of the studies, out of 135 identified articles, five papers met the required requirements. These five articles were published from 1999 to 2012, three studies examined the relationship between cutaneous leishmaniasis with different age groups. Also, three studies experimentally evaluated the relationship between cutaneous leishmaniasis with different human blood groups. Conclusion: According to the results of the present review, cutaneous leishmaniasis is more common in some blood groups. Studies have shown that Rh-negative blood groups with B alleles are more affected by cutaneous leishmaniasis than others; however, more studies are required.

2021 ◽  
Vol 27 ◽  
pp. 107602962110029
Author(s):  
Mira Merashli ◽  
Alessia Arcaro ◽  
Maria Graf ◽  
Matilde Caruso ◽  
Paul R. J. Ames ◽  
...  

The relationship between antiphospholipid antibodies (aPL) and sickle cell disease (SCD) has never been systematically addressed. Our aim was to evaluate potential links between SCD and aPL in all age groups. EMBASE/PubMed was screened from inception to May 2020 and Peto odds ratios for rare events were calculated. The pooled prevalence (PP) of IgG anticardiolipin antibodies (aCL) was higher in individuals with SCD than in controls (27.9% vs 8.7%, P < 0.0001), that of IgM aCL was similar in the two groups (2.9% vs 2.7%); only individuals with SCD were positive for lupus anticoagulant (LA) (7.7% vs 0%, P < 0.0001). The PP of leg ulcers was similar between aPL positive and negative individuals (44% vs 53%) and between patients in acute crisis and stable patients (5.6% vs 7.3%). Reporting of aPL as a binary outcome and not as a titer precluded further interpretation. The results indicate that a prospective case-control study with serial measurements of a panel of aPL in SCD patients might be warranted, in order to understand further the possible pathogenic role of aPL in SCD.


2019 ◽  
Vol 47 (6) ◽  
pp. 848-863
Author(s):  
Zofia Mazur ◽  
Mariola Laguna

Affect impacts people’s cognitive processes as well as provides the energy to pursue goals and engage in actions. Research suggests that affect might influence instrumental learning behavior. This review aims to summarize the existing literature concerning the relationship between affect and instrumental practice. In order to determine the role of affect in undertaking instrumental practice and in engagement in practice, we conducted a systematic search via electronic databases and reference lists; we also hand-searched the key journals. Studies were included in the review if they concerned both affect and practicing behavior in musicians and instrumental students across all age groups and if the relationships between the two constructs were investigated. We focused on individual instrumental practice in the classical repertoire. Eleven studies met our inclusion criteria. They reported quantitative relationships between affect and the amount of practice or qualitatively described the role of affect in practice engagement. The results of this systematic review show that practicing a musical instrument is associated with different types of affect—practice-related, performance-related, and context-free affect. Further investigation of affect in the context of music learning may inform future interventions for instrumentalists motivating them to practice.


Dose-Response ◽  
2021 ◽  
Vol 19 (4) ◽  
pp. 155932582110561
Author(s):  
Nunzia Garbino ◽  
Valentina Brancato ◽  
Marco Salvatore ◽  
Carlo Cavaliere

Background and purpose Perfusion Computed Tomography (CTp) is an imaging technique which allows quantitative and qualitative evaluation of tissue perfusion through dynamic CT acquisitions. Since CTp is still considered a research tool in the field of abdominal imaging, the aim of this work is to provide a systematic summary of the current literature on CTp in the abdominal region to clarify the role of this technique for abdominal cancer applications. Materials and Methods A systematic literature search of PubMed, Web of Science, and Scopus was performed to identify original articles involving the use of CTp for clinical applications in abdominal cancer since 2011. Studies were included if they reported original data on CTp and investigated the clinical applications of CTp in abdominal cancer. Results Fifty-seven studies were finally included in the study. Most of the included articles (33/57) dealt with CTp at the level of the liver, while a low number of studies investigated CTp for oncologic diseases involving UGI tract (8/57), pancreas (8/57), kidneys (3/57), and colon–rectum (5/57). Conclusions Our study revealed that CTp could be a valuable functional imaging tool in the field of abdominal oncology, particularly as a biomarker for monitoring the response to anti-tumoral treatment.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Weizhong Lan ◽  
Zhenghua Lin ◽  
Zhikuang Yang ◽  
Pablo Artal

Abstract The relationship between the optical properties of the eye in the periphery and myopia development is still under debate. To further clarify this issue, we provide here baseline data of two-dimensional peripheral optics results in a group of emmetropic Chinese children. Peripheral aberrations were measured under cycloplegia by using an open-view Hartmann-Shack wavefront sensor (VPR, Voptica SL, Spain). This instrument allows to measure fast in the horizontal visual field from temporal 30° to nasal 30° every 1°. Two-dimensional (2D) maps were retrieved from a series of horizonal scans taken every 4° from 20° superior to 16° inferior covering a visual field of 60 × 36°. A relatively homogeneous pattern of the 2D relative peripheral refraction was found across all these emmetropic subjects. Using cluster analysis followed by manual visual refinement, the 2D maps were identified to fit into four categories. More than 70% of the subjects showed a nearly flat horizontal refraction with a slightly myopic shift in the superior retina. Peripheral astigmatism was quite constant across subjects and similar to that expected theoretically. Peripheral aberrations were also similar to those in the fovea for a large retinal area. These baseline data would offer an important reference to compare with the future evolution with time, as well as with other refractive or age groups of subjects, to better understand the role of peripheral optical properties in myopia development.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 1572-1572
Author(s):  
Yuksel Urun ◽  
Tulay Koru-Sengul ◽  
Kadri Altundag ◽  
Gungor Utkan ◽  
Handan Onur ◽  
...  

1572 Background: The role of genetic factors in the development of cancer is widely accepted. ABO blood type is an inherited characteristic and previous studies have observed an association between ABO blood group and risk of certain malignancies, including pancreatic and gastric cancer. The data on the role of ABO blood group and Rh factor in breast cancer is inconclusive. Methods: All patients who had breast cancer (BC) and treated between 2000-2010 at the Departments of Medical Oncology of both Ankara and Hacettepe Universities (Ankara, Turkey) with defined ABO blood type and Rh factor were included in our retrospective reviews of tumor registry records. A group of volunteer healthy women donors of Turkish Red Crescent between 2004-2011 were identified as a control group, without any matching factors. The relationship of ABO blood types and Rh factor with various prognostic factors such as age at diagnosis, menopausal status, family history of breast cancer, and ER/PR/HER2 status were evaluated from 1740 BC patients. We compared the distributions of ABO blood types, Rh factors among 1740 patients and 204,553 healthy controls. Among BC patients, differences between each of aforementioned ABO blood groups and Rh factors with respect to various prognostic factors were explored, respectively. Results: Overall distributions of ABO blood groups as well as Rh factor were comparable between patients (44% A, 8% AB, 16% B, 32% O, 88% Rh+) and controls (41% A, 8% AB, 16% B, 35% O, 87% Rh+). However, there were statistically significant differences between patients and controls with respect to A vs. nonA (p=0.019) and marginal significance (p=0.051) for O vs. nonO. Among patients, there were statistically significant differences between A and nonA with respect to HER2 (p=0.0421), M stage (p=0.0447), T stage (p=0.0020). Only T stage (p=0.0337) were significantly different between O vs nonO. Grade (p=0.0227) and M stage (p=0.0107) were significantly different between Rh factors. Conclusions: In our study sample, ABO blood type was statistically significantly associated with breast cancer. Additional studies are necessary to determine the mechanisms by which ABO blood type may influence the risk of breast cancer.


2021 ◽  
Vol 28 ◽  
Author(s):  
Hao Wei ◽  
Zhen Li ◽  
Fang Liu ◽  
Yang Wang ◽  
Shi Ding ◽  
...  

Background: A malignant tumor is a disease that seriously threatens human health. At present, more and more research results show that the pathogenesis of different tumors is very complicated, and the methods of clinical treatment are also diverse. This review analyzes and summarizes the role of fat mass and obesity-associated (FTO) genes in different tumors and provides a reference value for research and drug treatment methods. Method: We conducted a comprehensive literature search using the database. According to the article's primary purpose, irrelevant articles were excluded from the research summary and included in the relevant articles. Finally, the relevant information of the article was summarized. Result: In this article, the relationship between malignant tumors and FTO is introduced by citing many documents. In addition, the inhibitors that act on FTO are listed. Conclusion: This article has shown that FTO protein is a demethylase that can regulate N6-methyladenosine (m6A) levels in mRNA and plays a crucial role in the progression and resistance of various tumors such as leukemia, breast cancer, and lung cancer.


2016 ◽  
Vol 44 (2) ◽  
pp. 269-282 ◽  
Author(s):  
YeiBeech Jang ◽  
SeoungHo Ryu

With the rapid growth of smartphone use, problematic mobile game use among youth has become an increasingly salient social concern in South Korea. In this study, we empirically explored the relationship between parenting behavior and adolescents' problematic mobile game use. On the basis of the developmental perspective, we focused on students in 3 different age groups (N = 1,018: elementary school, n = 401; middle school: n = 333; high school, n = 284) and observed noticeable differences according to age group. According to the hierarchical multiple regression results, overexpectation was positively related to problematic mobile game use in all 3 age groups. However, affection was negatively related to problematic mobile game use only in the elementary school group, and monitoring was negatively related to problematic mobile game use only in the high school group. Implications of the findings are discussed.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 885-886
Author(s):  
Christy Costanian ◽  
Raymond Farah ◽  
Sola Bahous ◽  
Abla Sibai

Abstract This review presents findings on the role of female reproductive factors on longevity.A comprehensive systematic literature search was conducted using four electronic databases: OVID Medline, Web of Science, PubMed and Google Scholar from inception until May 2020 and restricted to English language articles that tackle the relationship between reproductive factors and longevity in its various definitions. Our search yielded a total of 306 articles. After screening based on the eligibility criteria,37 articles were included for review. The majority of studies were prospective and conducted in Western populations. The most consistent findings were between parity and increased longevity. The role of ages at menarche and menopause, premature menopause, as well as reproductive lifespan on longevity were not conclusive. Whether gender of offspring is related to maternal longevity is yet to be fully elucidated.Variations in findings are in the majority due to differentials in the definition of longevity as an outcome. Further longitudinal studies based in developing countries are needed to examine reproductive factors related to longevity.


Author(s):  
SYLWIA ŁUSZCZYŃSKA

This article presents the findings of selected empirical research on language anxiety, conducted in various countries and among age groups at diverse proficiency levels, applying different research designs and anxiety measurement instruments. First of all, the role of some language skills in anxiety production is presented. The studies summarized below focus on listening, reading and writing in order to more specifically classify the causes of language anxiety. Then, a discussion of the relationship between anxiety during the three stages of language processing (i.e. input, processing, output) and its relationship to learning deficits is presented.


2020 ◽  
Vol 3 (1) ◽  
pp. 71-84
Author(s):  
Richard Chinaza Ikeagwulonu ◽  
◽  
Chinonyelum Thecla Ezeonu ◽  
Mark Uchejeso Obeta ◽  
Ngozi Immaculata Ugwu ◽  
...  

Introduction: Conflicting evidences exist that ABO blood groups correlate with the susceptibility to COVID-19 and its clinical outcomes. This study aimed to pool available articles that assessed a possible relationship between COVID-19 and ABO blood groups. Materials and methods: A search was conducted in four databases comprising Pubmed/Medline, Google scholar, Journal storage (JSTOR) and African Journals Online (AJOL) for relevant studies available before 25th August 2020 and contained extractable data on ABO blood type distribution and COVID-19 disease. Search terms included a combination of “ABO blood group, and COVID-19, coronavirus, and SARS-COV-2”. Results: Fourteen articles that met study inclusion criteria were selected from a total of five hundred and eighty-five articles identified through database search. The fourteen articles reviewed comprised of a total of 73934 subjects (13189 SARS-COV-2 positive cases and 60745 controls). Overall, the risk of SARS-COV-2 infection was found to be significantly increased in patients with blood group A with ORs: 1.24 (95%Cl: 1.09-1.41, P = 0.001). Additionally, blood group O subjects were seen to have decreased odds of contracting COVID-19 infection (OR: 0.78, 95%Cl: 0.68 – 0.89, P=0.0003). No significant association was found between ABO blood groups and COVID -19 severity and mortality. Conclusions: Blood group A was associated with a higher risk of SARS-COV-2 infection whereas risk of infection was lower in blood group O subjects. No statistical significant association was found between ABO blood groups and COVID-19 severity and mortality. The precise role of ABO blood group in COVID-19 susceptibility, severity and mortality requires further research for clarification.


Sign in / Sign up

Export Citation Format

Share Document