Results 111 to 120 of about 126,518 (276)

Oxygen consumption from air and water, ammonia and urea‐N excretion, and Na+ fluxes during progressive aquatic hypoxia in Amazonian armoured catfish Pterygoplichthys gibbiceps and Pterygoplichthys pardalis

open access: yesJournal of Fish Biology, EarlyView.
Abstract The Amazonian loricariid fish Pterygoplichthys gibbiceps, from the Rio Negro, and Pterygoplichthys pardalis, from the Rio Solimões, are facultative air‐breathers that can use the stomach as an air‐breathing organ. Measurement of oxygen uptake under progressive aquatic hypoxia revealed a relatively high hypoxia resistance of both species.
Bernd Pelster   +2 more
wiley   +1 more source

Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon

open access: yesJournal of Fish Biology, EarlyView.
Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster   +2 more
wiley   +1 more source

Cox-2 inhibition with nutraceuticals: a new therapeutic approach against Helicobacter pylori infection [PDF]

open access: yes, 2012
no.: P3.7 publicado em: Helicobacter 2012;17(Suppl.1):98Accumulated evidence in humans and animals shows that H. pylori up-regulate the expression of cyclooxygenase (COX)-2 both at mRNA and protein levels which might be one of the mechanisms leading to
Chaves, Paula   +7 more
core  

Advanced Technologies for the Diagnosis of Pulmonary Tuberculosis Using Exhaled Breath Samples: A Systematic Scoping Review

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Objectives Non‐invasive methods based on exhaled breath samples have emerged as promising alternatives for the diagnosis of pulmonary tuberculosis, especially in settings where sputum collection is challenging and laboratory infrastructure is limited.
F. L. Adão‐Araújo   +4 more
wiley   +1 more source

Antioxidant supplementation blunts the proteome response to 3 weeks of sprint interval training preferentially in human type 2 muscle fibres

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Sprint interval training (SIT) is a popular time‐efficient type of endurance training. Healthy young men performed nine SIT sessions (4–6 × 30 s all‐out cycling sprints) over 3 weeks while being supplemented with antioxidants (high doses of vitamins C and E) or placebo. Muscle biopsies taken before and after the first SIT session
Victoria L. Wyckelsma   +12 more
wiley   +1 more source

Accuracy of the 14C-urea breath test for the diagnosis of Helicobacter pylori

open access: yesSão Paulo Medical Journal, 2002
CONTEXT: The development of simple, accurate and low-expense techniques for detection of Helicobacter pylori infection has great relevance. OBJECTIVE: To determine the accuracy of a rapid 14C-urea breath test (UBT) employing a very simple device for ...
Ana Thereza Britto Gomes   +5 more
doaj   +1 more source

Prevalence of the Helicobacter pylori infection in chronic urticaria [PDF]

open access: yes
Background Urticaria is one of the most common clinically diagnosed dermatologic diseases. Wheals and pruritus are typical presentation of disease. Correlation between chronic urticaria (CU) and Helicobacter pylori infection has been proposed by many ...
رستمی مقدم, مجید
core  

Clinical backgrounds and outcomes of patients with Barrett's esophageal adenocarcinoma treated via endoscopic submucosal dissection in Kyushu, Japan: A retrospective multicenter cohort study

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
Abstract Objectives Most esophageal cancers in Japan are squamous cell carcinomas; however, there has been some concern regarding a recent increase in Barrett's esophageal adenocarcinoma (BEA). This study aimed to clarify the clinical characteristics and outcomes of patients treated via endoscopic submucosal dissection (ESD) in Kyushu, including ...
Fumisato Sasaki   +29 more
wiley   +1 more source

Detection of helicobacter pylori in pediatric patients with adenotonsillar hypertrophy

open access: yesOtorhinolaryngology and Facial Plastic Surgery, 2017
Background: Adenotonsillar hypertrophy is one of the most prevalent causes of upper airway obstruction in pediatric patients. Recent studies have shown contradictory findings about helicobacter pylori colonization in adenotonsilar tissue and its role on
Najmeh Doustmohammadian   +4 more
doaj   +1 more source

Current Status of Gastric Cancer Screening and Future Perspectives

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Gastric cancer (GC) remains a major global health concern, particularly in East Asia, Central Asia, and Eastern Europe, where its incidence and mortality rates are high. Helicobacter pylori infection is the primary cause of GC and leads to carcinogenic progression from nonatrophic gastritis to cancer.
Chika Kusano   +3 more
wiley   +1 more source

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