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  1. Article ; Online: L-NAME Administration Enhances Diabetic Kidney Disease Development in an STZ/NAD Rat Model.

    Corremans, Raphaëlle / D'Haese, Patrick C / Vervaet, Benjamin A / Verhulst, Anja

    International journal of molecular sciences

    2021  Volume 22, Issue 23

    Abstract: ... NAD) with oral N(ω)-Nitro-L-Arginine Methyl Ester (L-NAME) administration. Diabetes was induced ... of 230 mg/kg NAD. Rats were assigned to different groups receiving L-NAME (100 mg/kg/day) (STZ/NAD/L-NAME ... albumin-to-creatinine ratio, and evolving hypofiltration were detected at the end of the study. Daily L ...

    Abstract One of the most important risk factors for developing chronic kidney disease (CKD) is diabetes. To assess the safety and efficacy of potential drug candidates, reliable animal models that mimic human diseases are crucial. However, a suitable model of diabetic kidney disease (DKD) is currently not available. The aim of this study is to develop a rat model of DKD by combining streptozotocin and nicotinamide (STZ/NAD) with oral N(ω)-Nitro-L-Arginine Methyl Ester (L-NAME) administration. Diabetes was induced in male Wistar rats by intravenous injection of 65 mg/kg STZ, 15 min after intraperitoneal injection of 230 mg/kg NAD. Rats were assigned to different groups receiving L-NAME (100 mg/kg/day) (STZ/NAD/L-NAME) or vehicle (STZ/NAD) for a period of 9 or 12 weeks by daily oral gavage. All rats developed hyperglycemia. Hyperfiltration was observed at the start of the study, whereas increased serum creatinine, albumin-to-creatinine ratio, and evolving hypofiltration were detected at the end of the study. Daily L-NAME administration caused a rapid rise in blood pressure. Histopathological evaluation revealed heterogeneous renal injury patterns, which were most severe in the STZ/NAD/L-NAME rats. L-NAME-induced NO-deficiency in STZ/NAD-induced diabetic rats leads to multiple characteristic features of human DKD and may represent a novel rat model of DKD.
    MeSH term(s) Animals ; Blood Glucose/analysis ; Blood Pressure ; Diabetes Mellitus, Experimental/complications ; Diabetic Nephropathies/etiology ; Diabetic Nephropathies/pathology ; Enzyme Inhibitors/administration & dosage ; Enzyme Inhibitors/toxicity ; Male ; NAD/toxicity ; NG-Nitroarginine Methyl Ester/administration & dosage ; NG-Nitroarginine Methyl Ester/toxicity ; Nitric Oxide/metabolism ; Rats ; Rats, Wistar
    Chemical Substances Blood Glucose ; Enzyme Inhibitors ; NAD (0U46U6E8UK) ; Nitric Oxide (31C4KY9ESH) ; NG-Nitroarginine Methyl Ester (V55S2QJN2X)
    Language English
    Publishing date 2021-11-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms222312767
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: N-acetylcysteine (NAC) differentially affects arterial medial calcification and bone formation: The role of l-cysteine and hydrogen sulphide.

    Bourne, Lucie E / Patel, Jessal J / Davies, Bethan K / Neven, Ellen / Verhulst, Anja / D'Haese, Patrick C / Wheeler-Jones, Caroline P D / Orriss, Isabel R

    Journal of cellular physiology

    2021  Volume 237, Issue 1, Page(s) 1070–1086

    Abstract: Arterial medial calcification (AMC) is the deposition of calcium phosphate in the arteries. AMC is widely thought to share similarities with physiological bone formation; however, emerging evidence suggests several key differences between these processes. ...

    Abstract Arterial medial calcification (AMC) is the deposition of calcium phosphate in the arteries. AMC is widely thought to share similarities with physiological bone formation; however, emerging evidence suggests several key differences between these processes. N-acetylcysteine (NAC) displays antioxidant properties and can generate hydrogen sulphide (H
    MeSH term(s) Acetylcysteine/pharmacology ; Arteries/metabolism ; Glutathione/metabolism ; Hydrogen Sulfide/metabolism ; Hydrogen Sulfide/pharmacology ; Osteoblasts/metabolism ; Osteogenesis
    Chemical Substances Glutathione (GAN16C9B8O) ; Acetylcysteine (WYQ7N0BPYC) ; Hydrogen Sulfide (YY9FVM7NSN)
    Language English
    Publishing date 2021-10-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3116-1
    ISSN 1097-4652 ; 0021-9541
    ISSN (online) 1097-4652
    ISSN 0021-9541
    DOI 10.1002/jcp.30605
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: L-NAME Administration Enhances Diabetic Kidney Disease Development in an STZ/NAD Rat Model

    Raphaëlle Corremans / Patrick C. D’Haese / Benjamin A. Vervaet / Anja Verhulst

    International Journal of Molecular Sciences, Vol 22, Iss 12767, p

    2021  Volume 12767

    Abstract: ... NAD) with oral N(ω)-Nitro-L-Arginine Methyl Ester (L-NAME) administration. Diabetes was induced ... of 230 mg/kg NAD. Rats were assigned to different groups receiving L-NAME (100 mg/kg/day) (STZ/NAD/L-NAME ... albumin-to-creatinine ratio, and evolving hypofiltration were detected at the end of the study. Daily L ...

    Abstract One of the most important risk factors for developing chronic kidney disease (CKD) is diabetes. To assess the safety and efficacy of potential drug candidates, reliable animal models that mimic human diseases are crucial. However, a suitable model of diabetic kidney disease (DKD) is currently not available. The aim of this study is to develop a rat model of DKD by combining streptozotocin and nicotinamide (STZ/NAD) with oral N(ω)-Nitro-L-Arginine Methyl Ester (L-NAME) administration. Diabetes was induced in male Wistar rats by intravenous injection of 65 mg/kg STZ, 15 min after intraperitoneal injection of 230 mg/kg NAD. Rats were assigned to different groups receiving L-NAME (100 mg/kg/day) (STZ/NAD/L-NAME) or vehicle (STZ/NAD) for a period of 9 or 12 weeks by daily oral gavage. All rats developed hyperglycemia. Hyperfiltration was observed at the start of the study, whereas increased serum creatinine, albumin-to-creatinine ratio, and evolving hypofiltration were detected at the end of the study. Daily L-NAME administration caused a rapid rise in blood pressure. Histopathological evaluation revealed heterogeneous renal injury patterns, which were most severe in the STZ/NAD/L-NAME rats. L-NAME-induced NO-deficiency in STZ/NAD-induced diabetic rats leads to multiple characteristic features of human DKD and may represent a novel rat model of DKD.
    Keywords diabetic kidney disease ; preclinical model ; hyperfiltration ; albuminuria ; creatinine ; glomerular filtration rate ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 630
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Changes in the bacterial community structure in soil under conventional and conservation practices throughout a complete maize (Zea mays L.) crop cycle

    Romero-Salas, Edson A / Navarro-Noya, Yendi E / Luna-Guido, Marco / Verhulst, Nele / Crossa, José / Govaerts, Bram / Dendooven, Luc

    Applied soil ecology. 2021 Jan., v. 157

    2021  

    Abstract: ... characteristics and the bacterial community structure were monitored in soil with maize (Zea mays L.) and wheat ... Triticum aestivum L.) rotation, zero tillage and crop residue kept (ZTRK) or removed (ZTRR), and ...

    Abstract Agricultural practices and changes in soil conditions, such as water content, inorganic N content, temperature, pH and organic material availability, affect the bacterial community structure. Soil characteristics and the bacterial community structure were monitored in soil with maize (Zea mays L.) and wheat (Triticum aestivum L.) rotation, zero tillage and crop residue kept (ZTRK) or removed (ZTRR), and conventional tillage with monoculture maize (CTMR) or maize-wheat rotation and crop residue removed (CTRR) or kept in the field and ploughed in (CTRK). The soil organic C was significantly affected by tillage practices and decreased ZTRK > CTRK > CTRR = ZTRR > CTMR, while water content and NO₃⁻ concentration showed large fluctuations over the crop cycle, but were not affected significantly by agricultural practices. The bacterial community structure showed large changes over the crop cycle determined by varying soil characteristics, most importantly water content and NO₃⁻ concentration and six bacterial genera, i.e. Achromobacter, Bacillus, Halomonas, Kaistobacter, Pseudomonas and Serratia, while changes due to agricultural practices were much smaller. It was found that the bacterial community structure was affected significantly by time, tillage (zero tillage versus conventional tillage), crop residue management (kept versus removed) and crop rotation (CTMR versus CTRR treatment).
    Keywords Achromobacter ; Halomonas ; Pseudomonas ; Serratia ; Triticum aestivum ; Zea mays ; bacterial communities ; community structure ; conventional tillage ; corn ; crop residue management ; crop residues ; crop rotation ; nitrogen content ; no-tillage ; pH ; soil ecology ; soil organic carbon ; temperature ; water content ; wheat
    Language English
    Dates of publication 2021-01
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 1196758-4
    ISSN 0929-1393
    ISSN 0929-1393
    DOI 10.1016/j.apsoil.2020.103733
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: The Bacterial Community Structure and Dynamics of Carbon and Nitrogen when Maize (Zea mays L.) and Its Neutral Detergent Fibre Were Added to Soil from Zimbabwe with Contrasting Management Practices.

    De la Cruz-Barrón, Magali / Cruz-Mendoza, Alejandra / Navarro-Noya, Yendi E / Ruiz-Valdiviezo, Victor M / Ortíz-Gutiérrez, Daniel / Ramírez-Villanueva, Daniel A / Luna-Guido, Marco / Thierfelder, Cristian / Wall, Patrick C / Verhulst, Nele / Govaerts, Bram / Dendooven, Luc

    Microbial ecology

    2016  Volume 73, Issue 1, Page(s) 135–152

    Abstract: Water infiltration, soil carbon content, aggregate stability and yields increased in conservation agriculture practices compared to conventionally ploughed control treatments at the Henderson research station near Mazowe (Zimbabwe). How these changes in ... ...

    Abstract Water infiltration, soil carbon content, aggregate stability and yields increased in conservation agriculture practices compared to conventionally ploughed control treatments at the Henderson research station near Mazowe (Zimbabwe). How these changes in soil characteristics affect the bacterial community structure and the bacteria involved in the degradation of applied organic material remains unanswered. Soil was sampled from three agricultural systems at Henderson, i.e. (1) conventional mouldboard ploughing with continuous maize (conventional tillage), (2) direct seeding with a Fitarelli jab planter and continuous maize (direct seeding with continuous maize) and (3) direct seeding with a Fitarelli jab planter with rotation of maize sunn hemp (direct seeding with crop rotation). Soil was amended with young maize plants or their neutral detergent fibre (NDF) and incubated aerobically for 56 days, while C and N mineralization and the bacterial community structure were monitored. Bacillus (Bacillales), Micrococcaceae (Actinomycetales) and phylotypes belonging to the Pseudomonadales were first degraders of the applied maize plants. At day 3, Streptomyces (Actinomycetales), Chitinophagaceae ([Saprospirales]) and Dyella (Xanthomonadales) participated in the degradation of the applied maize and at day 7 Oxalobacteraceae (Burkholderiales). Phylotypes belonging to Halomonas (Oceanospirillales) were the first degraders of NDF and were replaced by Phenylobacterium (Caulobacterales) and phylotypes belonging to Pseudomonadales at day 3. Afterwards, similar bacterial groups were favoured by application of NDF as they were by the application of maize plants, but there were also clear differences. Phylotypes belonging to the Micrococcaceae and Bacillus did not participate in the degradation of NDF or its metabolic products, while phylotypes belonging to the Acidobacteriaceae participated in the degradation of NDF but not in that of maize plants. It was found that agricultural practices had a limited effect on the bacterial community structure, but application of organic material altered it substantially.
    MeSH term(s) Bacteria/metabolism ; Carbon/metabolism ; Fertilizers/analysis ; Microbiota ; Nitrogen/metabolism ; Soil/chemistry ; Soil Microbiology ; Zea mays/metabolism ; Zea mays/microbiology ; Zimbabwe
    Chemical Substances Fertilizers ; Soil ; Carbon (7440-44-0) ; Nitrogen (N762921K75)
    Language English
    Publishing date 2016-08-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1462065-0
    ISSN 1432-184X ; 0095-3628
    ISSN (online) 1432-184X
    ISSN 0095-3628
    DOI 10.1007/s00248-016-0807-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Thermal preference of Culicoides biting midges in laboratory and semi-field settings.

    Hochstrasser, Alec L / Mathis, Alexander / Verhulst, Niels O

    Journal of thermal biology

    2024  Volume 119, Page(s) 103783

    Abstract: Biting midges of the genus Culicoides (Diptera: Ceratopogonidae) are hematophagous insects, and some species can transmit a plethora of pathogens, e.g., bluetongue virus and African horse sickness virus, that mainly affect animals. The transmission of ... ...

    Abstract Biting midges of the genus Culicoides (Diptera: Ceratopogonidae) are hematophagous insects, and some species can transmit a plethora of pathogens, e.g., bluetongue virus and African horse sickness virus, that mainly affect animals. The transmission of vector-borne pathogens is strongly temperature dependent, and recent studies pointed to the importance of including microclimatic data when modelling disease spread. However, little is known about the preferred temperature of biting midges. The present study addressed the thermal selection of field-caught Culicoides with two experiments. In a laboratory setup, sugar-fed or blood-fed midges were video tracked for 15 min while moving inside a 60 × 30 × 4 cm setup with a 15-25 °C temperature gradient. Culicoides spent over double the time in the coldest zone of the setup compared to the warmest one. This cold selection was significantly stronger for sugar-fed individuals. Calculated preferred temperatures were 18.3 °C and 18.9 °C for sugar-fed and blood-fed Culicoides, respectively. The effect of temperature on walking speed was significant but weak, indicating that their skewed distribution results from preference and not cold trapping. A second experiment consisted of a two-way-choice-setup, performed in a 90 × 45 × 45 cm net cage, placed outdoors in a sheltered environment. Two UV LED CDC traps were placed inside the setup, and a mean temperature difference of 2.2 °C was created between the two traps. Hundred-fifty Culicoides were released per experiment. Recapture rates were negatively correlated with ambient temperature and were on average three times higher in the cooled trap. The higher prevalence of biting midges in cooler environments influences fitness and ability to transmit pathogens and should be considered in models that predict Culicoides disease transmission.
    MeSH term(s) Humans ; Animals ; Ceratopogonidae ; Insect Vectors ; African Horse Sickness Virus ; Environment ; Sugars
    Chemical Substances Sugars
    Language English
    Publishing date 2024-01-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 1498364-3
    ISSN 1879-0992 ; 0306-4565
    ISSN (online) 1879-0992
    ISSN 0306-4565
    DOI 10.1016/j.jtherbio.2024.103783
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A retrospective chart analysis with 5-year follow-up of early care for geriatric hip fracture patients: why we should continue talking about hip fractures.

    Sermon, An / Verhulst, Evelyne / Aerden, Laurens / Hoekstra, Harm

    European journal of trauma and emergency surgery : official publication of the European Trauma Society

    2024  

    Abstract: Background: Timing of surgery remains a topic of debate for hip fracture treatment in the geriatric patient population. The quality indicator "early surgery" was implemented in 2014 at the Department of Trauma Surgery of the University Hospitals Leuven ... ...

    Abstract Background: Timing of surgery remains a topic of debate for hip fracture treatment in the geriatric patient population. The quality indicator "early surgery" was implemented in 2014 at the Department of Trauma Surgery of the University Hospitals Leuven to enhance timely operative treatment. In this follow-up study, we aim to evaluate the performance of this quality indicator, the clinical outcomes, and room for improvement.
    Methods: The charts of 1190 patients surgically treated for an acute hip fracture were reviewed between June 2017 and May 2022 at the University Hospitals Leuven. Primary endpoints were adherence to early surgery, defined as surgery within the next calendar day, and the evaluation of the reasons for deviating from this protocol. Secondary endpoints were length of stay (LOS); intensive care unit (ICU) admission and length of ICU stay; mortality after 30 days, 60 days, 90 days, and 6 months; and 90-day readmission rate. Pearson's Chi-square test and Mann-Whitney U test were used for data analysis.
    Results: One thousand eighty-four (91.1%) patients received early surgery versus 106 (8.9%) patients who received delayed surgery. The main reasons for surgical delay were the use of anticoagulants (33%), a general health condition not allowing safe surgery and/or existing comorbidities requiring workup prior to surgery (26.4%), and logistical reasons (17.9%). Patient delay and transfer from other hospitals were responsible for respectively 8.5% and 6.6% of delayed surgery. Early surgery resulted in a significantly shorter LOS and ICU stay (12 [8-25] vs. 18 [10-36] and 3 [2-6] vs. 7 [3-13] days, early vs. delayed surgery, respectively). No significant reduction was observed in ICU admission, mortality, and readmission rate.
    Conclusion: We have been able to maintain the early surgery hip fracture protocol in approximately 90% of the patients. Comorbidities and anticoagulant use were responsible for delayed surgery in the majority of the patients. Correct implementation of the existing protocol on anticoagulant use could lead to a one-third decrease in the number of delayed surgeries. Subsequently, since the LOS and ICU stay in the delayed surgery group were significantly longer, a further increase of early surgery will lower the current economic burden.
    Language English
    Publishing date 2024-04-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2275480-5
    ISSN 1863-9941 ; 1863-9933
    ISSN (online) 1863-9941
    ISSN 1863-9933
    DOI 10.1007/s00068-024-02514-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: The Bacterial Community Structure and Dynamics of Carbon and Nitrogen when Maize (Zea mays L.) and Its Neutral Detergent Fibre Were Added to Soil from Zimbabwe with Contrasting Management Practices

    De la Cruz-Barrón, Magali / Cruz-Mendoza, Alejandra / Navarro–Noya, Yendi E / Ruiz-Valdiviezo, Victor M / Ortíz-Gutiérrez, Daniel / Ramírez-Villanueva, Daniel A / Luna-Guido, Marco / Thierfelder, Cristian / Wall, Patrick C / Verhulst, Nele / Govaerts, Bram / Dendooven, Luc

    Microbial ecology. 2017 Jan., v. 73, no. 1

    2017  

    Abstract: Water infiltration, soil carbon content, aggregate stability and yields increased in conservation agriculture practices compared to conventionally ploughed control treatments at the Henderson research station near Mazowe (Zimbabwe). How these changes in ... ...

    Abstract Water infiltration, soil carbon content, aggregate stability and yields increased in conservation agriculture practices compared to conventionally ploughed control treatments at the Henderson research station near Mazowe (Zimbabwe). How these changes in soil characteristics affect the bacterial community structure and the bacteria involved in the degradation of applied organic material remains unanswered. Soil was sampled from three agricultural systems at Henderson, i.e. (1) conventional mouldboard ploughing with continuous maize (conventional tillage), (2) direct seeding with a Fitarelli jab planter and continuous maize (direct seeding with continuous maize) and (3) direct seeding with a Fitarelli jab planter with rotation of maize sunn hemp (direct seeding with crop rotation). Soil was amended with young maize plants or their neutral detergent fibre (NDF) and incubated aerobically for 56 days, while C and N mineralization and the bacterial community structure were monitored. Bacillus (Bacillales), Micrococcaceae (Actinomycetales) and phylotypes belonging to the Pseudomonadales were first degraders of the applied maize plants. At day 3, Streptomyces (Actinomycetales), Chitinophagaceae ([Saprospirales]) and Dyella (Xanthomonadales) participated in the degradation of the applied maize and at day 7 Oxalobacteraceae (Burkholderiales). Phylotypes belonging to Halomonas (Oceanospirillales) were the first degraders of NDF and were replaced by Phenylobacterium (Caulobacterales) and phylotypes belonging to Pseudomonadales at day 3. Afterwards, similar bacterial groups were favoured by application of NDF as they were by the application of maize plants, but there were also clear differences. Phylotypes belonging to the Micrococcaceae and Bacillus did not participate in the degradation of NDF or its metabolic products, while phylotypes belonging to the Acidobacteriaceae participated in the degradation of NDF but not in that of maize plants. It was found that agricultural practices had a limited effect on the bacterial community structure, but application of organic material altered it substantially.
    Keywords Acidobacteriaceae ; Bacillales ; Chitinophagaceae ; Crotalaria juncea ; Halomonas ; Micrococcaceae ; Oxalobacteraceae ; Phenylobacterium ; Pseudomonadales ; Streptomyces ; Xanthomonadales ; Zea mays ; aggregate stability ; bacteria ; bacterial communities ; carbon ; community structure ; conventional tillage ; corn ; crop rotation ; direct seeding ; mineralization ; neutral detergent fiber ; nitrogen ; phylotype ; plowing ; Zimbabwe
    Language English
    Dates of publication 2017-01
    Size p. 135-152.
    Publishing place Springer US
    Document type Article
    ZDB-ID 1462065-0
    ISSN 1432-184X ; 0095-3628
    ISSN (online) 1432-184X
    ISSN 0095-3628
    DOI 10.1007/s00248-016-0807-8
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Street Experiments and COVID-19: Challenges, Responses and Systemic Change.

    Verhulst, Lennert / Casier, Corneel / Witlox, Frank

    Tijdschrift voor economische en sociale geografie = Journal of economic and social geography = Revue de geographie economique et humaine = Zeitschrift fur okonomische und soziale Geographie = Revista de geografia economica y social

    2022  Volume 114, Issue 1, Page(s) 43–57

    Abstract: Cities have introduced street experiments, among others, in order to cope with the urgent health challenges caused by the COVID-19 pandemic. They are primarily intended to allow people to move safely in urban spaces according to physical distancing ... ...

    Abstract Cities have introduced street experiments, among others, in order to cope with the urgent health challenges caused by the COVID-19 pandemic. They are primarily intended to allow people to move safely in urban spaces according to physical distancing requirements. It has been suggested that street experiments have the potential to not only respond to pressing needs, but to also trigger systemic change in mobility. This paper explores urban case studies and demonstrates how pandemic-induced street experiments provide a solution to specific challenges to mobility and public space. There are, however, issues concerning equity and citizen participation. Finally, we find that pandemic-induced street experiments have a higher acceptance among the public and authorities, a more permanent character and a greater embeddedness in long-term planning agendas. The paper concludes that the pandemic stimulated the introduction of street experiments and fostered their potential to enable systemic change in urban mobility.
    Language English
    Publishing date 2022-12-21
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1482901-0
    ISSN 1467-9663 ; 0040-747X
    ISSN (online) 1467-9663
    ISSN 0040-747X
    DOI 10.1111/tesg.12542
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Aminoglycoside-induced sensorineural hearing loss in pediatric cystic fibrosis patients: A retrospective cohort study.

    Jouret, N / Van der Poel, N / Verhulst, S / Lammers, Mjw / Van Rompaey, V / Jacquemin, L / Van Hoorenbeeck, K

    Heliyon

    2024  Volume 10, Issue 3, Page(s) e25190

    Abstract: Background: Pulmonary infections by gram-negative organisms are important in cystic fibrosis (CF). Aminoglycosides (AG) are often part of the treatment regimen. However, they are a well-known cause of ototoxicity. Even minimal hearing impairment in ... ...

    Abstract Background: Pulmonary infections by gram-negative organisms are important in cystic fibrosis (CF). Aminoglycosides (AG) are often part of the treatment regimen. However, they are a well-known cause of ototoxicity. Even minimal hearing impairment in children could have a future impact on functional well-being.We aimed to investigate the progression of sensorineural hearing loss (SNHL) over several years in pediatric CF patients, and to identify risk factors, such as the use of AG, including both intravenous (IV) and inhaled AG.
    Methods: Retrospective analyses of patient records from children and adolescents followed up at the CF clinic of the Antwerp University Hospital, Belgium, were performed. We collected data on age, sex, pure-tone audiometry, and the use of AG. Descriptive and binary logistic regression analyses, and if indicated generalized estimating equations (GEE) analyses were performed.
    Results: Forty pediatric patients were enrolled in the study taking part from 2013 to 2020. Pure-tone audiometry revealed an important rate of SNHL over several years, with a prevalence of 29 % for high-frequency SNHL (i.e. 8 kHz). Increasing age was identified as a significant risk factor for the development of SNHL at 8 kHz if 5 or more IV AG courses (p = 0.01) were reported or when IV AG were combined with inhaled AG (p = 0.002).
    Conclusions: Age combined with the use of IV AG (≥5 courses or in combination with inhaled AG) are predictive for developing high-frequency SNHL (i.e. 8 kHz). We suggest routine annual hearing screening (incl. high-frequency thresholds) in CF patients, starting from childhood.
    Language English
    Publishing date 2024-01-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e25190
    Database MEDical Literature Analysis and Retrieval System OnLINE

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