[Mesenchymal stem cells: Therapeutic option in ARDS, COPD, and COVID-19 patients].

Acute respiratory distress syndrome (ARDS), chronic obstructive pulmonary disease (COPD) and COVID-19 have as a common characteristic the inflammatory lesion of the lung epithelium. The therapeutic options are associated with opportunistic infections, a hyperglycemic state, and adrenal involvement. Therefore, the search for new treatment strategies that reduce inflammation, and promote re-epithelialization of damaged tissue is very important.

Molecular epidemiology and genetic diversity of Entamoeba species in a chelonian collection.

Veterinary medicine has focused recently on reptiles, due to the existence of captive collections in zoos and an increase in the acquisition of reptiles as pets. The protozoan parasite, Entamoeba can cause amoebiasis in various animal species and humans. Although amoebiasis disease is remarkably rare in most species of chelonians and crocodiles, these species may serve as Entamoeba species carriers that transmit parasites to susceptible reptile species, such as snakes and lizards, which can become sick and die.

[First centenary of Whipple's disease].

Whipple's disease is an infrequent multisystemic infection caused by a gram-positive bacterium: Tropheryma whippelii, which after several studies has been characterized as an actinomiceto por 16Sr RNA. It occurs with multiple symptoms, the principal of which are diarrhea, weight loss, stomach pain and arthralgias. Arthritis or artralgia may appear as an isolated symptom and eventually through the years additional digestive, cardiovascular and/or neurological symptoms arise.

The implantation of Taenia solium metacestodes in mice induces down-modulation of T-cell proliferation and cytokine production.

The purpose of this study was to determine the effect of the implantation of Taenia solium metacestodes and the treatment with suppressive metacestode factor (F1) on the ability of spleen cells from Balb/c mice to produce cytokines. Cytokine production was estimated 12 days following the implantation or 4 days after the last dose of F1 (five doses) by RT-PCR and flow cytometry analyses. Spleen cells were obtained from metacestode-implanted, F1-treated and control mice.

Taenia solium metacestode antigens which are protective for pigs induce Th1/Th2 mixed responses in mice.

The purpose of this study was to determine the Th1 and Th2 cytokine responses induced by Taenia solium metacestode antigens in mice and correlate them with the immune responses elicited in vivo. To assess this aim, mice were inoculated with metacestode antigens. RNA was obtained from spleen cells of immunized or control mice incubated with metacestode antigens and used to determine the cytokine profile.