scholarly journals Peran Imunitas Mukosa terhadap Infeksi Mycobacterium Tuberculosis

2019 ◽  
Vol 2 (2) ◽  
pp. 61
Author(s):  
Irmi Syafa’ah ◽  
Resti Yudhawati

Tuberculosis (TB) is one of major health problems in the world, with high morbidity and mortality rates. According to Global Tuberculosis Report 2015, Indonesia ranks as country with the 2nd highest number of TB cases in the world. Airway was described as a ‘gateway’ to the main pathogens, allergens and particles from the external environment. It has surveillance function that filtering beneficial and non-beneficial antigens, including Mycobacterium tuberculosis (MTB) as the causative agent of TB. MTB is a mucosal transmitted pathogen, infects human through mucosal tissue of respiratory tract. Airway mucosa was considered as the first barrier as well as inductive sites to initiate mucosal immune response against MTB. In this literature, the role of mucosal immune system, in this case especially airway mucosa, and its role against Mycobacterium tuberculosis infection in humans will be further discussed.

2020 ◽  
Vol 6 (1) ◽  
pp. 27
Author(s):  
Resti Yudhawati ◽  
Nitya Prasanta

Pulmonary Tuberculosis is a chronic infection that caused by Mycobacterium tuberculosis (M.tb) infection and it is still the major health problem worldwide. Mycobacterium tuberculosis infection can induce oxidative stress. Some studies has proved that active TB patients have an association with excessive oxidative stress which causes glutathione (GSH) level decrease and free radicals increase. Glutathione (GSH) facilitates the control of M.TB intracellular bacterial growth in macrophages and has direct antimicrobial activity.  N-acetylcysteine (NAC) is thiol, a precursor of L-cysteine and glutathione synthesis (GSH) that has been used for decades as a mucolytic agent in the treatment of respiratory diseases. Some studies report beneficial role of NAC as immunomodulator, besides NAC also has anti-inflammatory and antimicrobial effect in TB management.


Cells ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1732
Author(s):  
Sandra Patricia Palma Albornoz ◽  
Thais Fernanda de Campos Fraga-Silva ◽  
Ana Flávia Gembre ◽  
Rômulo Silva de Oliveira ◽  
Fernanda Mesquita de Souza ◽  
...  

The microbiota of the gut–lung axis affects local and far-reaching immune responses and might also trigger chronic and inflammatory diseases. We hypothesized that gut dysbiosis induced by obesity, which coexists in countries with a high tuberculosis burden, aggravates the host susceptibility and the pulmonary damage tolerance. To assess our hypothesis, we used a model of high-fat diet (HFD)-induced obesity, followed by infection of C57BL/6 mice with Mycobacterium tuberculosis. We showed that obesity increased the susceptibility, the pulmonary inflammation and IFN-γ levels in M. tuberculosis-infected mice. During the comorbidity obesity and tuberculosis, there is an increase of Bacteroidetes and Firmicutes in the lungs, and an increase of Firmicutes and butyrate in the feces. Depletion of gut microbiota by antibiotic treatment in the obese infected mice reduced the frequencies of CD4+IFN-γ+IL-17− cells and IFN-γ levels in the lungs, associated with an increase of Lactobacillus. Our findings reinforce the role of the gut–lung axis in chronic infections and suggest that the gut microbiota modulation may be a potential host-directed therapy as an adjuvant to treat TB in the context of IFN-γ-mediated immunopathology.


Pathogens ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1523
Author(s):  
Florentina Dumitrescu ◽  
Cătălina-Gabriela Pisoschi ◽  
Vlad Pădureanu ◽  
Andreea Cristina Stoian ◽  
Livia Dragonu ◽  
...  

Tuberculosis (TB) is an important opportunistic infection in HIV-positive people. We are reporting a case of a 31-year-old HIV-infected patient who was hospitalized in July 2021 for dyspnea, cough with mucopurulent sputum and asthenia. He was confirmed to have Serratia liquefaciens pneumonia and acute respiratory failure. The evolution was unfavorable despite the antibiotic, pathogenic and symptomatic treatment. Because the patient had severe immunosuppression (CD4 count = 37 cell/mm3), we used QuantiFERON-TB Gold Plus for the detection of the Mycobacterium tuberculosis infection. The antituberculosis therapy was initiated, which resulted in a significant improvement of the general condition and the patient was discharged with the recommendation to continue antiretroviral therapy, antituberculosis treatment and Trimethoprim/Sulfamethoxazole—single tablet daily for the prophylaxis of Pneumocystis pneumonia.


2015 ◽  
Vol 8 (1) ◽  
pp. 3-14 ◽  
Author(s):  
Julia M. Scordo ◽  
Daren L. Knoell ◽  
Jordi B. Torrelles

Tuberculosis (TB) is a disease that kills one person every 18 s. TB remains a global threat due to the emergence of drug-resistant Mycobacterium tuberculosis (M.tb) strains and the lack of an efficient vaccine. The ability of M.tb to persist in latency, evade recognition following seroconversion, and establish resistance in vulnerable populations warrants closer examination. Past and current research has primarily focused on examination of the role of alveolar macrophages and dendritic cells during M.tb infection, which are critical in the establishment of the host response during infection. However, emerging evidence indicates that the alveolar epithelium is a harbor for M.tb and critical during progression to active disease. Here we evaluate the relatively unexplored role of the alveolar epithelium as a reservoir and also its capacity to secrete soluble mediators upon M.tb exposure, which influence the extent of infection. We further discuss how the M.tb-alveolar epithelium interaction instigates cell-to-cell crosstalk that regulates the immune balance between a proinflammatory and an immunoregulatory state, thereby prohibiting or allowing the establishment of infection. We propose that consideration of alveolar epithelia provides a more comprehensive understanding of the lung environment in vivo in the context of host defense against M.tb.


Author(s):  
Farzin Bagheri Sheykhangafshe

The coronavirus 2019 first broke out on December 17, 2019 in Wuhan, China, and on March 11, 2020, it was announced as a worldwide pandemic by the World Health Organization. Despite nutritious diets and promising vaccines, health tips such as wearing a mask, social distancing, home quarantine, and not traveling are still the best ways to control the spread of COVID-19.While the widespread prevalence of COVID-19, severe restrictions, lack of definitive treatment, and the high infection and mortality rates have led to cognitive psychological disorders among the general population of the world. One of the epidemic consequences of COVID-19 syndrome in people who have defeated the coronavirus was psychological disorders. Considering the role of mental health in boosting the immune system, improving the effectiveness of the COVID-19 vaccine and accelerating the treatment process of patients, it is suggested that in the post-COVID era, more attention be paid to the psychological health of the community.


2021 ◽  
Vol 16 (2) ◽  
Author(s):  
Maria Paola Maurelli ◽  
Paola Pepe ◽  
Antonio Montresor ◽  
Denise Mupfasoni ◽  
Martina Nocerino ◽  
...  

Soil-transmitted helminth (STH) infections are among the most common neglected tropical diseases worldwide causing high morbidity and mortality rates in endemic areas. Preventive chemotherapy (PC) programmes and health education are recommended by the World Health Organization (WHO) to reduce the impact of STH in endemic countries. Following our role as WHO collaborating centre (WHO CC ITA-116), we have developed a WebGIS and a dataset to support PC programmes to monitor the impact of STH control. This vHealth presentation shows the potentiality of these tools in improving communication among WHO’s regional and country offices, Ministries of Health, pharmaceutical industries and other partners.


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