Publications by authors named "Esteban C Gabazza"

BACKGROUND Pembrolizumab, a programmed cell-death protein-1 (PD-1)-targeting antibody, extends survival in cancer patients but may cause lung injury as a side effect. This immunotherapy enhances the immune system's ability to recognize and eliminate cancer cells. However, its immunomodulatory action can sometimes lead to immune-related adverse events, including lung injury.

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Background: Non-small cell lung cancer (NSCLC) is a significant health concern. The prognostic value of oxidative stress (OS)-related genes in NSCLC remains unclear. The study aimed to explore the prognostic significance of OS-genes in NSCLC using extensive datasets from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO).

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Article Synopsis
  • A 54-year-old woman with Stage IIIb squamous cell carcinoma initially underwent chemoradiotherapy but faced cancer relapse two years later, leading to treatment with nivolumab, which was stopped due to drug-induced pneumonitis.
  • After several unsuccessful treatments, including prednisolone and multiple cytotoxic agents, the patient received a combination therapy of cisplatin, gemcitabine, and necitumumab, followed by palliative radiation for lymph node enlargement.
  • Remarkably, a treatment with atezolizumab resulted in significant tumor regression, suggesting earlier treatments may have influenced PD-L1 expression, highlighting the need for more research into treatment history's impact on therapy effectiveness in squamous cell carcinoma.
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Idiopathic pulmonary fibrosis (IPF) is a progressive, often fatal lung disease characterized by tissue scarring and declining lung function. The promoter polymorphism rs35705950, a significant genetic predisposition for IPF, paradoxically associates with better survival and slower disease progression than other IPF genotypes. This study investigates the potential paradoxical protective effects of this variant in lung fibrosis.

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The case was an 80-year-old Japanese man. He was diagnosed with right renal cell carcinoma when he was 74. After laparoscopic radical nephrectomy, the patient received interferon, sorafenib, axitinib, and nivolumab therapy.

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Approximately 30% of steroid-resistant nephrotic syndromes are attributed to monogenic disorders that involve 27 genes. Mutations in family members have also been linked to nephrotic syndrome; however, the precise mechanism remains elusive. To investigate this, podocyte-specific knockout mice were generated to examine phenotypic changes.

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Background: Immune checkpoint inhibitors have recently become the standard of care in the first-line treatment of extensive-stage small cell lung cancer. Although immune-related adverse events have been reported to influence prognosis in non-small cell lung cancer patients, few studies have investigated the prognostic value of immune-related adverse events in small cell lung cancer patients. In this study, we evaluated the prognosis of patients who developed immune-related adverse events after first-line treatment with immune checkpoint inhibitor-based chemotherapy for extensive-stage small cell lung cancer.

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Tissue fibrosis is characterized by the excessive accumulation of extracellular matrix in various organs, including the lungs, liver, skin, kidneys, pancreas, and heart, ultimately leading to organ failure [...

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Mesenteric phlebosclerosis is a rare ischemic colonic disorder caused by impaired venous drainage. Its prevalence is higher in East Asia, where herbal medicine is widely used. Treatment remains controversial.

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Background: Coagulopathy is a major cause of morbidity and mortality in COVID-19 patients. Hypercoagulability in COVID-19 results in deep vein thrombosis, thromboembolic complications, and diffuse intravascular coagulation. Microbiome dysbiosis influences the clinical course of COVID-19.

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Article Synopsis
  • Acute cholangitis is a severe infection of the biliary system requiring quick diagnosis and treatment; however, identifying severe cases remains challenging despite existing guidelines.* -
  • This study evaluated the potential of corisin, a microbiome-derived peptide, as a biomarker for acute cholangitis using plasma and bile samples from patients with varying severity of the disease.* -
  • Findings indicated that levels of corisin in both plasma and bile were significantly higher in patients with acute cholangitis compared to controls, especially in those with severe cases, with bile corisin correlating with various inflammatory markers.*
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A 42-year-old Japanese woman with end-stage renal failure due to hypertension presented with a systolic blood pressure of 160-200 mmHg despite treatment with 4 different antihypertensive agents. The plasma aldosterone concentration (PAC) and plasma renin activity (PRA) were elevated. Adrenal vein sampling suggested bilateral excessive aldosterone secretion, whereas adrenocortical scintigraphy showed right-dominant accumulation.

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Bronchoscopy with radial-probe endobronchial ultrasound, a guide sheath, and electromagnetic navigation can improve the diagnostic yield of peripheral lung nodules. However, the suitability of specimens for genetic analysis remains unsatisfactory. We hypothesized that a transbronchial biopsy performed after closely approaching the bronchoscope tip to the lesion might provide more suitable specimens for genetic analysis.

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In general, mushroom-forming fungi secrete liquid on the surface of mycelia just before fruiting-body formation. However, no researchers in mushroom science have paid attention to the liquid until now. We formulated a hypothesis that the liquid plays an important role(s) in the formation of the fruiting body and produces various bioactive compounds and named it the "fruiting liquid (FL)".

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  • This study explored the potential of intravenous delivery of a miR-21 inhibitor using lipid nanoparticles to treat head and neck squamous cell carcinoma (HNSCC) in mouse models.
  • The results showed that the miR-21 inhibitor significantly reduced tumor growth and miR-21 expression compared to a control.
  • Additionally, the treatment led to noticeable tumor cell death, suggesting that this method could be an effective therapy for HNSCC.
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Adjuvant chemotherapy is commonly indicated in lung cancer patients undergoing surgical therapy because tumor recurrence is frequent. A biomarker that can predict tumor recurrence in the postoperative period is currently unavailable. CXCR4 receptor and its ligand CXCL12 play important roles in metastasis.

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sp. that grow in symbiosis with fungus-farming Termites have medicinal properties. However, they are rare in nature, and their artificial culture is challenging.

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() is the primary causative agent of various gastroduodenal diseases. is an adapted microorganism that has evolved to survive in the acidic conditions of the human stomach, possessing a natural strategy for colonizing harsh environments. Despite the implementation of various eradication regimens worldwide, the eradication rate of has decreased to less than 80% in recent years due to the emergence of antibiotic-resistant strains.

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  • Idiopathic pulmonary fibrosis is a serious and progressive disease, and the role of matrix metalloproteinase-2 (MMP-2) in this condition is not well understood.
  • A study using transgenic mice that overexpress MMP-2 showed reduced inflammation and fibrosis compared to regular mice after lung injury caused by bleomycin.
  • The findings suggest that MMP-2 helps protect against pulmonary fibrosis by decreasing cell death (apoptosis) in the lung's epithelial cells.
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A novel compound () along with two known compounds ( and ) were isolated from the culture broth of , and three known compounds (-) were isolated from its fruiting bodies. The planar structure of was determined by the interpretation of spectroscopic data. By comparing the specific rotation of the compound with that of the analog compound, the absolute configuration of was determined to be .

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Acute lung injury (ALI) is a clinical syndrome characterized by a diffuse lung inflammation that commonly evolves into acute respiratory distress syndrome and respiratory failure. The lung microbiota is involved in the pathogenesis of ALI. Corisin, a proapoptotic peptide derived from the lung microbiota, plays a role in ALI and acute exacerbation of pulmonary fibrosis.

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