Mohammad Reza Rouhbakhsh Zahmatkesh; Saman Soleimanpour; Zahra Mirfeizi; Nasrin Milani
Abstract
The coronavirus disease 2019 (COVID-19), which has spread to many countries, is so severe that it progresses rapidly to acute respiratory failure. Therefore, in our paper, we aimed to describe and evaluate the most practical laboratory pro-inflammatory factors to predict the course of severe COVID-19 ...
Read More
The coronavirus disease 2019 (COVID-19), which has spread to many countries, is so severe that it progresses rapidly to acute respiratory failure. Therefore, in our paper, we aimed to describe and evaluate the most practical laboratory pro-inflammatory factors to predict the course of severe COVID-19 cases.Given the physiopathology of COVID-19 and the consequent immune system hyperactivity, we started to investigate the background pathology of these occurrences aiming to find the prognostic laboratory factors in COVID-19 cases. All reviews focused on the potential cellular and molecular mechanisms causing the cytokine storm in viral diseases, and several studies approved applicable laboratory parameters for COVID-19 patients. Based on our data, increased CRP level, LDH, serum ferritin, creatine kinase (CK), higher D-dimer and FDP levels, IL-6, cardiac troponin I and longer PT can be potential markers for predicting the course of infection; particularly, D-dimer, which was elevated to five times the original count in severe cases. Apart from that, the severe cases showed lymphopenia, neutrophilia, thrombocytopenia, and prolonged PTT. However, there was contradictory evidence about AST, ALT, BUN, and serum creatinine.The major cause of COVID-19 in critical patients was a cytokine storm; therefore, prognostic factors in the cytokine storm can also predict the prognosis of COVID-19. Thus, severe cases can be solved by early detection of these laboratory parameters.
Mohsen Karbalaei; Saman Soleimanpour; Majid Eslami; Bahman Yousefi; Masoud Keikha
Abstract
Mycobacterium tuberculosis (Mtb) is considered to be a major public health concern and a successful intracellular pathogen associated with high mortality worldwide. The Bacillus Calmette-Guerin (BCG) vaccine is the only available vaccine for the prevention of tuberculosis (TB) and tubercular meningitis ...
Read More
Mycobacterium tuberculosis (Mtb) is considered to be a major public health concern and a successful intracellular pathogen associated with high mortality worldwide. The Bacillus Calmette-Guerin (BCG) vaccine is the only available vaccine for the prevention of tuberculosis (TB) and tubercular meningitis in children. However, BCG is not adequately effective in the treatment of the adults affected to TB. According to the literature, there are controversial data on the potential role of B cells. B cells and humoral immune response play a key role in the amplification of the host immune response against TB. This review study aimed to discuss B cells and humoral immune responses in TB infection and assess its application as a therapeutic option. The monitoring of various B cell phenotypes in TB could be a reliable marker for the prediction of TB in individuals, especially in the latent form. According to the findings, the CMI response (especially Th1 activities) is not sufficient for efficient protection against TB, and B cells and Abs influence the innate immunocytes and Th1, while playing a pivotal role in various outcomes of exposure with tubercle bacilli. Although B cells may contribute to Mtb in the development of active TB, further investigations are required regarding the effects of B cells and humoral immunity on TB pathogenesis and the targeted harmful humoral-mediated response. Moreover, B cells and antibodies could be proper biomarkers to promote the studies regarding the detection of reliable diagnostic tools for the reactivation of latent TB, as well as use as a new generation of therapeutic options.