immunological system
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Author(s):  
Elissa Chávez-Hernández ◽  
Gabriel Otero-Colina ◽  
Celina Llanderal-Cázares ◽  
Matías Maggi-Daniel ◽  
Sóstenes Rafael Rodríguez-Dehaibes ◽  
...  

Author(s):  
Thomas E. C. J. Huwae ◽  
Agung R. B. Santoso ◽  
Ahmad Heifan ◽  
Lasa D. Siahaan

Rheumatoid arthritis (RA) is mainly treated with immunosuppressive drugs, which affects the immunological system. Therefore, the risk of tuberculosis was increased two to ten times in RA patients. Moreover, immunosuppressant is contraindicated in patients with tuberculosis arthritis. A 51-year-old male was presented with pain in his left elbow after he slipped on the floor. He was diagnosed with RA for 16 years and only took prednisone for six years. Six months before, he came to a rheumatologist and was given corticosteroid for six months for RA. The left elbow radiograph and joint aspiration revealed a tuberculosis infection. The patient treated with chloroquine and oral antituberculosis for one year and showed good clinical outcomes. Other diseases should be suspected in RA with uncommon symptoms. Chloroquine is the drug of choice in RA patients with tuberculosis who are contraindicated in immunosuppressant therapy because chloroquine has no immunosuppressant effect.


Genes ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1313
Author(s):  
Maciej Tarnowski ◽  
Patrycja Kopytko ◽  
Katarzyna Piotrowska

Epigenetic modifications occur in response to environmental changes and play a fundamental role in the regulation of gene expression. PA is found to elicit an inflammatory response, both from the innate and adaptive divisions of the immunological system. The inflammatory reaction is considered a vital trigger of epigenetic changes that in turn modulate inflammatory actions. The tissue responses to PA involve local and general changes. The epigenetic mechanisms involved include: DNA methylation, histone proteins modification and microRNA. All of them affect genetic expression in an inflammatory milieu in physical exercise depending on the magnitude of physiological stress experienced by the exerciser. PA may evoke acute or chronic biochemical and physiological responses and have a positive or negative immunomodulatory effect.


2021 ◽  
Vol 10 (15) ◽  
pp. 3299
Author(s):  
Natalia Grzebisz-Zatońska ◽  
Stanisław Poprzęcki ◽  
Ilona Pokora ◽  
Kazimierz Mikołajec ◽  
Tomasz Kamiński

The aim of this study was to evaluate somatic, hormonal and immunological changes during the macrocycle of cyclists (9 well-trained men, age 25.6 ± 5.2 years and body weight 72.4 ± 7.35 kg). During the training macrocycle, four exercise control tests were carried out, and biochemical markers were measured in the laboratory. Seasonal training changes did not significantly disturb resting somatic and functional parameters, physical capacity (VO2max), body weight, the number of leukocytes and selected hormones. The secretory system of the organism did not respond significantly to the exercise stress in the training process, even with the increasing share of anaerobic processes in the subsequent periods of the macrocycle. Irisin and other parameters globally did not correlate with training volume. Irisin showed a significant correlation only with cortisol in the first period and human growth hormone in the second, and it showed a weak correlation in the third period with body mass and BMI. The lack of interactions between irisin level and other variables practically excludes its use in monitoring cyclist training. Future research would be complemented by the assessment of stress and postexercise changes in the cyclists’ macrocycle and expanding the research group to other athletes, including women.


2021 ◽  
Vol 15 (1) ◽  
pp. 51-57
Author(s):  
Wani D. Gunardi ◽  
Kris H. Timotius ◽  
Agustine Natasha ◽  
Paulina R. Evriarti

Burkholderia are intracellular pathogenic bacteria which can produce biofilm. This biofilm protects the intracellular pathogenic bacteria from antibiotic treatment and the immunological system of the host. Therefore, this review aims to describe the capacity of Burkholderia to form a biofilm, the regulation of its biofilm formation, the efficacy of antibiotics to eradicate biofilm, and the novel therapy which targets its biofilm. Burkholderia's biofilm is characterized by its lipopolysaccharides, exopolysaccharides (EPSs), biofilm-associated proteins, and eDNA. Its regulation is made by quorum sensing, c-di-AMP, sRNA, and two component systems. Many antibiotics have been used as sole or mixture agents; however, they are not always effective in eradicating the biofilm-forming Burkholderia. Inhibitors of quorum sensing and other non-conventional antibiotic approaches are promising to discover effective treatment of Burkholderia infections.


2021 ◽  
Author(s):  
Daofeng Qu ◽  
Yuqiao Zhou ◽  
Wei Zhou ◽  
Jinzhi Zhou ◽  
Ze He ◽  
...  

Abstract Microorganisms have developed many strategies in the process of long-term defense against external attacks, one of which is the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated proteins (Cas) bacterial immunological system. In this paper, the whole genome of 300 strains of Klebsiella was collected, the CRISPR-Cas system in the strains was statistically analyzed, and the types and structures of CRISPR system in Klebsiella were explored, as well as the correlation between CRISPR and mobile genetic elements (MGEs). Through principal component analysis (PCA), we found that Cas gene, plasmids, integron, IS1, IS609 and DNA-related enzymes were closely related to CRISPR. Compared the structural characteristics of plasmids, the DinG family helicases, Cas6, Csf2, and IS5 were observed near the CRISPR loci in plasmid, which is also confirmed by the the results of PCA that they may be important factors affecting the plasmid whith CRISPR.


2021 ◽  
Vol 29 (1) ◽  
pp. 59-68
Author(s):  
Aziz Ahmed Khan ◽  
Ponkaj Kanti Datta ◽  
Abida Sultana ◽  
Md Shahidullah Sikder ◽  
Arif Ahmed Khan ◽  
...  

Psoriasis is a common, chronic, immune mediated inflammatory disease that involves the innate immunological system (keratinocyte, dendritic cell, histiocytes, mast cells and endothelial cells) and acquired immunological system (T lymphocytes). Essential trace elements like iron (Fe), copper (Cu) undergo redox cycling and have physiological significance in inflammatory process. This study is aimed at measuring the level of copper, ceruloplasmin, iron and transferrin in psoriasis patient and to assess its relationship with the severity of the disease. This is an observational cross sectional study. It was conducted at the department of Dermatology and Venereology, BSMMU, Dhaka. Age range of the patient was 18 to 65 years. The mean age of the patients was 39.1±13.54 years, 57.9% patients were male and 42.1% were female. Male: female ratio was 1.4:1. Male patients were predominant. Mean duration of disease 5.36±4.05 years with range from 1.0 to 14 years. Most of the (76.3%) patients had mild disease followed by 23.7% had moderate to severe disease. Serum level of trace elements was compared between mild and moderate to severe group of psoriasis patients but difference were not statistically significant (p>0.05). Weak negative correlation was found between PASI score and serum levels of copper (r = “0.134, P = 0.423), iron (r = –0.080, p = 0.632), transferrin (r = –0.079, p = 0.638) and weak positive correlation was found with ceruloplasmin (r = 0.228, p = 0.168). The results of the present research provide valuable information and correlation between the measured biomarkers and severity of psoriasis. Serum Ceruloplasmin, copper, iron and serum transferrin could serve as a biomarker of psoriasis but not as a marker of psoriasis severity. J Dhaka Medical College, Vol. 29, No.1, April, 2020, Page 59-68


2021 ◽  
Vol 7 (1) ◽  
pp. 9996-10010
Author(s):  
Jadiel Caparrós da Silva ◽  
Faronak Amorim Kharaghani ◽  
Gabriela Aparecida Santos ◽  
Natália Ferreira Teles Dos Santos ◽  
Jordana Barbosa Teles

Author(s):  
Pelin Teke Kisa ◽  
Nur Arslan

AbstractInborn errors of metabolism consist of a heterogeneous group of disorders with various organ systems manifestations, and some metabolic diseases also cause immunological disorders or dysregulation. In this review, metabolic diseases that affect the immunological system and particularly lead to primary immune deficiency will be reviewed. In a patient with frequent infections and immunodeficiency, the presence of symptoms such as growth retardation, abnormal facial appearance, heart, skeletal, lung deformities, skin findings, arthritis, motor developmental retardation, seizure, deafness, hepatomegaly, splenomegaly, impairment of liver function tests, the presence of anemia, thrombocytopenia and eosinophilia in hematological examinations should suggest metabolic diseases for the underlying cause. In some patients, these phenotypic findings may appear before the immunodeficiency picture. Metabolic diseases leading to immunological disorders are likely to be rare but probably underdiagnosed. Therefore, the presence of recurrent infections or autoimmune findings in a patient with a suspected metabolic disease should suggest that immune deficiency may also accompany the picture, and diagnostic examinations in this regard should be deepened.


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