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1.
PLoS One ; 19(5): e0301531, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38787855

RESUMO

Wastewater discharge into the environment in resource-poor countries poses a threat to public health. Studies in this area within these countries are limited, and the use of high-throughput whole-genome sequencing technologies is lacking. Therefore, understanding of environmental impacts is inadequate. The present study investigated the antibiotic resistance profiles and diversity of beta-lactamases in Escherichia coli strains isolated from environmental water sources in Accra, Ghana. Microbiological analyses were conducted on wastewater samples from three hospitals, a sewage and wastewater treatment plant, and water samples from two urban surface water bodies. Confirmed isolates (N = 57) were selected for phenotypic antibiotic resistance profiles. Multi-drug-resistant isolates (n = 25) were genome sequenced using Illumina MiSeq sequencing technology and screened for sequence types, antibiotic resistance, virulence and beta-lactamase genes, and mobile genetic elements. Isolates were frequently resistant to ampicillin (63%), meropenem (47%), azithromycin (46%), and sulfamethoxazole-trimethoprim (42%). Twenty different sequence types (STs) were identified, including clinically relevant ones such as ST167 and ST21. Five isolates were assigned to novel STs: ST14531 (n = 2), ST14536, ST14537, and ST14538. The isolates belonged to phylogroups A (52%), B1 (44%), and B2 (4%) and carried ß-lactamase (TEM-1B, TEM-1C, CTX-M-15, and blaDHA-1) and carbapenemase (OXA-1, OXA-181) resistance genes. Dominant plasmid replicons included Col440I (10.2%) and IncFIB (AP001918) (6.8%). Polluted urban environments in Accra are reservoirs for antibiotic-resistant bacteria, posing a substantial public health risk. The findings underscore the need for targeted public health interventions to mitigate the spread of antibiotic-resistant bacteria and protect public health.


Assuntos
Farmacorresistência Bacteriana Múltipla , Escherichia coli , Águas Residuárias , beta-Lactamases , Gana , Escherichia coli/genética , Escherichia coli/efeitos dos fármacos , Escherichia coli/isolamento & purificação , Farmacorresistência Bacteriana Múltipla/genética , beta-Lactamases/genética , Humanos , Águas Residuárias/microbiologia , Saúde Pública , Antibacterianos/farmacologia , Microbiologia da Água , Testes de Sensibilidade Microbiana , Genômica , Sequenciamento Completo do Genoma , Filogenia , Esgotos/microbiologia , Genoma Bacteriano
2.
Cureus ; 15(1): e34316, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36860216

RESUMO

Glomus tumor is a rare mesenchymal tumor commonly located in the periphery of glomus bodies, such as the subungual regions (e.g., fingernails and toenails). Other locations include the forearm, wrist, or trunk. Even rare is when these tumors are found in the submucosa. In the stomach, it is commonly found at the gastric antrum. Gastric glomus tumors (GGTs) are often found incidentally after a presumption of other gastric tumors is diagnosed, such as gastrointestinal stromal tumors (GISTs) or carcinoid tumors. The variable clinical presentation of GGT and the fact that histology is the only way to confirm the diagnosis is what makes GGT such an elusive tumor. Our case is a patient that presented with weight loss and reflux. Esophagogastroduodenoscopy (EGD) and colonoscopy were done, and the diagnosis of carcinoid tumor was presumed. Preliminary pathology was suggestive of a diagnosis of carcinoid tumor. The patient eventually had a subtotal gastrectomy, and a biopsy with immunohistochemical staining of the specimen was received, finally confirming the diagnosis of a GGT.

3.
Cureus ; 15(4): e38207, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37252552

RESUMO

Granulomatosis with polyangiitis (GPA) is a small vessel vasculitis that affects many organ systems with varying disease severity. GPA commonly affects the sinuses and lung parenchyma. However, GPA can affect the gastrointestinal tract and may present as colitis. Immunosuppressive therapy, like rituximab (RTX), is used for the management of this disease. Rituximab is generally well-tolerated but has rare side effects that have been shown to mimic colitis in inflammatory diseases. Our case is a 44-year-old female with a history of GPA who presented with dysphagia, abdominal pain, and diarrhea. The patient received a maintenance dose of RTX six months before the presentation. The patient was seronegative for anti-neutrophilic cytoplasmic antibodies against proteinase 3 (PR3 ANCA). Infectious etiology was ruled out. Esophagogastroduodenoscopy (EGD) and colonoscopy showed esophageal bleeding ulcers and diffuse colonic inflammation, respectively. Pathology was consistent with esophagitis and colitis. Colonic mucosal biopsy failed to show evidence of vasculitis. The patient was treated with sucralfate and intravenous pantoprazole with an improvement in the symptoms. The repeat endoscopy on an outpatient basis showed the patient had full mucosal healing, including histological healing. Our patient likely had rituximab-induced colitis and esophagitis.

4.
Microbiol Resour Announc ; 12(1): e0089322, 2023 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-36453948

RESUMO

Whole-genome sequence data for clinically relevant Gram-negative bacteria from the African continent are scarce. In this report, we present the draft genome sequence data and antibiograms of four species, namely, Kerstersia gyiorum, Providencia vermicola, Providencia stuartii, and Alcaligenes faecalis, that were recovered from human soft tissue biopsy samples.

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