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Unusual manifestation of gastric mucormycosis in a patient with rheumathoid arthritis. VOJNOSANIT PREGL 2022. [DOI: 10.2298/vsp200731020m] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Introduction. Mucormycosis is a life-threatening opportunistic infection whose incidence has significantly risen during the last two decades. The gastrointestinal form is very rare, with the stomach as the most common site of infection, followed by the colon and ileum. Risk factors include uncontrolled diabetes mellitus, corticosteroid use, and organ transplantation. We report a patient with a history of rheumatoid arthritis who has developed gastrointestinal mucormycosis. To the best of our knowledge, this is the first such case reported in the literature. Case report. A 53-year-old female patient with a prior medical history of rheumatoid arthritis was admitted to the hospital due to persisting diarrhea. Physical examination revealed diffuse abdominal tenderness to palpation without meteorism and peritoneal signs. Laboratory results demonstrated systemic inflammation, so antibiotic therapy was administered. Abdominal computed tomography findings revealed inflammation of the rectum and the left colon. Colonoscopy findings were indicative of Crohn?s disease. Additionally, the patient had developed profuse rectal bleeding and consequently underwent emergency surgery. Subtotal colectomy with ileostomy and partial gastrectomy was performed. The patient?s condition rapidly worsened after the operation, and she died due to multi-organ failure. Histologic findings of resection specimens discovered chronic active colitis and extensive gastric necrosis associated with dense mixed inflammatory infiltration and numerous non-septate and 90-degree branching hyphae. Diagnosis of invasive gastric mucormycosis was obtained, but unfortunately, several days after the patient?s death. Conclusion. It is very important to obtain high awareness among clinicians of this deadly infection to achieve a prompt diagnosis and effective therapy.
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Sheng B, Chen Y, Sun L, Xu P, Han B, Li X, Yin J, Li T, Guan H, Chen S, Wang Q, Li C, Li S, Jiang X, Wang P, He Q, Wang Y, Xiao W, Yang H. Antifungal Treatment Aggravates Sepsis through the Elimination of Intestinal Fungi. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:2796700. [PMID: 34707775 PMCID: PMC8545547 DOI: 10.1155/2021/2796700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 09/27/2021] [Indexed: 12/26/2022]
Abstract
Prophylactic antifungal therapy is widely adopted clinically for critical patients and effective in reducing the morbidity of invasive fungal infection and improves outcomes of those diagnosed patients; however, it is not associated with higher overall survival. As intestinal commensal fungi play a fundamental role in the host immune response in health and disease, we propose that antifungal therapy may eliminate intestinal fungi and aggravate another critical syndrome, sepsis. Here, with murine sepsis model, we found that antifungal therapy with fluconazole dismissed intestinal fungal burden and aggravated endotoxin-induced but no gram-positive bacteria-induced sepsis. Nevertheless, antifungal therapy did not exert its detrimental effect on germ-free mice. Moreover, colonizing more commensal fungi in the mouse intestine or administration of fungal cell wall component mannan protected the mice from endotoxin-induced sepsis. On the molecular level, we demonstrated that antifungal therapy aggravated endotoxin sepsis through promoting Gasdermin D cleavage in the distal small intestine. Intestinal colonization with commensal fungi inhibited Gasdermin D cleavage in response to lipopolysaccharide challenge. These findings show that intestinal fungi inhibit Gasdermin D-mediated pyroptosis and protect the mice from endotoxin-induced sepsis. This study demonstrates the protective role of intestinal fungi in the pathogenesis of endotoxin-induced sepsis in the laboratory. It will undoubtedly prompt us to study the relationship between antifungal therapy and sepsis in critical patients who are susceptible to endotoxin-induced sepsis in the future.
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Affiliation(s)
- Baifa Sheng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
- Department of Emergency Medicine, PLA Strategic Support Force Characteristic Medical Center, Beijing 100101, China
| | - Yihui Chen
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
- Department of General Surgery, The First Mobile Corps Hospital of PAP, Dingzhou City, 073000 Hebei Province, China
| | - Lihua Sun
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Peng Xu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Ben Han
- Department of Nutrition, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Xiaolong Li
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Jiuheng Yin
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Teming Li
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Haidi Guan
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Shuaishuai Chen
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Qi Wang
- Division of Hematology-Oncology, Department of Medicine Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Chuangen Li
- Department of Laboratory Animal Science, College of Basic Medical Science, Army Medical University, Chongqing 400038, China
| | - Shiqiang Li
- Department of Laboratory Animal Science, College of Basic Medical Science, Army Medical University, Chongqing 400038, China
| | - Xianhong Jiang
- Department of Laboratory Animal Science, College of Basic Medical Science, Army Medical University, Chongqing 400038, China
| | - Peng Wang
- Department of Laboratory Animal Science, College of Basic Medical Science, Army Medical University, Chongqing 400038, China
| | - Qiuyue He
- Department of Laboratory Animal Science, College of Basic Medical Science, Army Medical University, Chongqing 400038, China
| | - Yong Wang
- Department of Laboratory Animal Science, College of Basic Medical Science, Army Medical University, Chongqing 400038, China
| | - Weidong Xiao
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Hua Yang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
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