Objective: To explore the value of bronchoalveolar lavage as an emergency treatment for systemic lupus erythematosus (SLE) patients with concurrent diffuse alveolar hemorrhage (DAH).
Methods: A total of 21 SLE plus DAH patients were divided randomly into 2 groups. The patients in Group A received methylprednisolone 1000 mg/d for 3 days while those in Group B methylprednisolone 1000 mg/d for 3 days in combination with a bronchoalveolar lavage. Partial pressure of carbon dioxide (PaCO2), partial pressure of oxygen (PaO2), oxygen saturation (SaO2) and Borg scale (BS) for quantitative evaluation of dyspnea were recorded before and after treatment.
Results: Except for PaCO2, all other parameters of blood gas analysis in all patients in Group A (P > 0.05) were better after treatment than before (all P < 0.05). After treatment, PaO2 and SaO2 in Group B were higher than those in Group A (all P < 0.05), but PaCO2 was not markedly changed (P > 0.05). BS decreased significantly in both groups (both P < 0.01). And more decrease was observed in Group B as compared with Group A after treatment (P < 0.05).
Conclusion: Bronchoalveolar lavage plus a high-dose implosive therapy of methylprednisolone may alleviate hypoxemia and dyspnea in acute period of SLE complicated with DAH.
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Front Med
January 2025
International Center for Aging and Cancer (ICAC), Hainan Medical University, Haikou, 571199, China.
Adenosine, a critical molecule regulating cellular function both inside and outside cells, is controlled by two human adenosine deaminases: ADA1 and ADA2. While ADA1 primarily resides in the cytoplasm, ADA2 can be transported to lysosomes within cells or secreted outside the cell. Patients with ADA2 deficiency (DADA2) often suffer from systemic vasculitis due to elevated levels of TNF-α in their blood.
View Article and Find Full Text PDFFront Microbiol
January 2025
Department of Medicine, Qinghai University, Xining, Qinghai, China.
Objective: This study aimed to investigate the potential relation between the retarded growth of skeletal muscle (SM) and dysbiosis of gut microbiota (GM) in children with asthma, and to explore the potential action mechanisms of traditional pediatric massage (TPM) from the perspective of regulating GM and short-chain fatty acids (SCFAs) production by using an adolescent rat model of asthma.
Methods: Male Sprague-Dawley rats aged 3weeks were divided randomly into the 5 groups (n=6~7) of control, ovalbumin (OVA), OVA + TPM, OVA + methylprednisolone sodium succinate (MP) and OVA + SCFAs. Pulmonary function (PF) was detected by whole body plethysmograph, including enhanced pause and minute ventilation.
Front Pharmacol
January 2025
Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates.
Introduction: Exposure to particulate matter ≤2.5 μm in diameter (PM) is associated with adverse respiratory outcomes, including alterations to lung morphology and function. These associations were reported even at concentrations lower than the current annual limit of PM.
View Article and Find Full Text PDFObjective: The mucosal origin hypothesis in rheumatoid arthritis (RA) posits that inhalant exposures, such as cigarette smoke and crystalline silica (c-silica), trigger immune responses contributing to disease onset. Despite the established risk posed by these exposures, the mechanistic link between inhalants, lung inflammation, and inflammatory arthritis remains poorly understood, partly from the lack of a suitable experimental model. As c-silica accelerates autoimmune phenotypes in lupus models and is a recognized risk factor for several autoimmune diseases, we investigated whether c-silica exposure could induce RA-like inflammatory arthritis in mice.
View Article and Find Full Text PDFInt J Environ Health Res
January 2025
Department of Respiratory and Critical Care Medicine, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
To establish a mouse model of asthma sensitized and challenged with PM2.5 extract, 48 female BALB/c mice were included in this analysis. They were divided into six groups: normal control, ovalbumin (OVA) control, three PM2.
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