Publications by authors named "Merzak Gharnaout"

The effect of helminthic infections on allergic diseases and asthma is still inconclusive. Moreover, there is considerable evidence suggesting that nitric oxide (NO), metalloproteinases and pro-inflammatory cytokines play a significant role in the physiopathology of these diseases. In this sense, the aim of our study is to investigate the ex vivo immunomodulatory effect of the laminated layer (LL, outside layer of parasitic cyst) of the helminth Echinococcus granulosus on NO, IL-17A and IL-10 production.

View Article and Find Full Text PDF

Background: Inborn errors of immunity (IEI) predispose patients to various infectious and non-infectious complications. Thanks to the development and expanding use of flow cytometry and increased awareness, the diagnostic rate of IEI has markedly increased in Algeria the last decade.

Aim: This study aimed to describe a large cohort of Algerian patients with probable IEI and to determine their clinical characteristics and outcomes.

View Article and Find Full Text PDF

Introduction: Asthma and rhinitis are a public health problem around the world with clearly established epidemiological, pathophysiological and clinical links.

Patients And Methods: Descriptive and prospective observational analytic cross-sectional study with the objective of determining the predictive factors of asthma in allergic rhinitis.

Results: 334 rhinitis patients were included, 228 (68.

View Article and Find Full Text PDF

Introduction: Aucune étude antérieure n'a élaboré le profil des patients Algériens hospitalisés pour COVID-19. L'objectif de cette étude était de déterminer le profil clinique, biologique et tomodensitométrique des patients Algériens hospitalisés pour COVID-19.

MÉthodes: Une étude prospective était menée auprès des patients hospitalisés pour COVID-19 (période: 19 mars-30 avril 2020).

View Article and Find Full Text PDF

Accumulating evidence supports that the viral-induced hyper-inflammatory immune response plays a central role in COVID-19 pathogenesis. It might be involved in the progression to acute respiratory distress syndrome (ARDS), multi-organ failure leading to death. In this study, we aimed to evaluate the prognostic value of the immune-inflammatory biomarkers in COVID-19, then determine optimal thresholds for assessing severe and fatal forms of this disease.

View Article and Find Full Text PDF

The immune system plays a crucial role in the response against severe acute respiratory syndrome coronavirus 2 with significant differences among patients. The study investigated the relationships between lymphocyte subsets, cytokines, and disease outcomes in patients with coronavirus disease 2019 (COVID-19). The measurements of peripheral blood lymphocytes subsets and cytokine levels were performed by flow cytometry for 57 COVID-19 patients.

View Article and Find Full Text PDF

Bronchopulmonary tumors (BPTs) are the most common cancers. They are associated with poor prognosis. They are usually caused by occupational exposure, but this is often underestimated.

View Article and Find Full Text PDF

Introduction: Determining the profile of COVID-19 patients with low pulsed hemoglobin saturation in oxygen (SpO2) could help clinicians identify those with a poor prognosis.

Aim: To identify and to compare the clinical, biological and radiological data of Algerian patients hospitalized for COVID-19 and divided according to the SpO2 measured at admission, at rest, and in ambient air.

Methods: A prospective study was carried out on Algerian patients hospitalized for COVID-19 during the period from March 9 to April 30, 2020.

View Article and Find Full Text PDF

Background: Lung cancer is a major cause of death worldwide. However, few data on incidence, histologic types and mortality rates of lung cancer were available for Algeria.

Methods: LuCaReAl is an ongoing descriptive, non-interventional, national, multicenter, prospective and longitudinal study conducted in Algeria, among oncologists and pulmonologists in public community and university hospitals.

View Article and Find Full Text PDF

Background: Studies evaluating the impacts of parity on LFD of healthy females presented controversial conclusions.

Aim: To compare the LFD of healthy females broken down according to their parities.

Methods: A medical questionnaire was administered and anthropometric data were determined.

View Article and Find Full Text PDF

Background: The validation of the multi-ethnic GLI-2012 spirometric norms has been debated in several countries. However, its applicability in Algeria has not been verified.

Aim: To ascertain how well the GLI-2012 norms fit contemporary adult Algerian spirometric data.

View Article and Find Full Text PDF