Background: Surgical intervention under concomitant steroid therapy can be complicated by impaired anastomotic healing. The aim of this experimental study was to investigate the effects of a corticosteroid (methylprednisolone) on healing colonic anastomoses in relation to the dose and duration of administration.
Methods: Fifty male Spraque-Dawley rats weighing 200-220 g were divided into five groups each containing 10 rats. No treatment was given in the control group. Group HDST: high-dose methylprednisolone (1 mg/kg/day, intramuscular) treatment for a short term of 2 days; group HDLT: high-dose methylprednisolone treatment for a long term of 60 days; group LDST: low-dose methylprednisolone (0.28 mg/kg/day) treatment for a short term of 2 days; and group LDLT: low-dose methylprednisolone treatment for a long term of 60 days. Standard left colonic anastomosis was performed in all rats. Anastomotic bursting pressure, hydroxyproline measurement, and histopathological data were evaluated in all groups on postoperative day 4.
Results: The mean anastomotic bursting pressure value was significantly lower in the HDLT group (P < 0.05). The mean hydroxyproline levels were significantly lower in all groups (P < 0.05). Histopathological results demonstrated significant changes according to neutrophil infiltration, granulation tissue formation, presence of vascularization, and peritonitis in the HDLT, LDST, and LDLT groups (P < 0.05).
Conclusions: High and low doses of the corticosteroid produced adverse effects on the healing of colon anastomosis in rats regardless of whether it was administered over a long or short preoperative period. However, the most prominent negative effect was associated with high-dose, long-term corticosteroid administration.
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http://dx.doi.org/10.1002/ibd.21331 | DOI Listing |
Elife
January 2025
Department of Neurosciences, Case Western Reserve University School of Medicine, Cleveland, United States.
Sensory experience during developmental critical periods has lifelong consequences for circuit function and behavior, but the molecular and cellular mechanisms through which experience causes these changes are not well understood. The antennal lobe houses synapses between olfactory sensory neurons (OSNs) and downstream projection neurons (PNs) in stereotyped glomeruli. Many glomeruli exhibit structural plasticity in response to early-life odor exposure, indicating a general sensitivity of the fly olfactory circuitry to early sensory experience.
View Article and Find Full Text PDFJAMA Netw Open
January 2025
Clinical Product Development, Waymark, San Francisco, California.
Importance: Rising prescription medication costs under Medicaid have led to increased procedural prescription denials by health plans. The effect of unresolved denials on chronic condition exacerbation and subsequent acute care utilization remains unclear.
Objective: To examine whether procedural prescription denials are associated with increased net spending through downstream acute care utilization among Medicaid patients not obtaining prescribed medication following a denial.
JAMA Otolaryngol Head Neck Surg
January 2025
Department of Otolaryngology-Head and Neck Surgery, Foch Hospital, School of Medicine, Paris Saclay University, Paris, France.
Importance: Retrograde cricopharyngeus dysfunction (R-CPD) is an emerging disorder associated with disabling symptoms. The origin of R-CPD remains unknown.
Objective: To investigate the development of symptoms, diagnosis approach, and therapeutic outcomes of R-CPD in patients treated with in-office botulinum toxin injection (BTI) into the cricopharyngeus.
Vaccine X
January 2025
Shinagawa Pharmaceutical Association, 2-4-2 Nakanobu, Shinagawa-ku, Tokyo 142-0053, Japan.
Objective: Owing to persistent concerns about side effects, human papillomavirus (HPV) vaccination rates in Japan have remained low. Pharmacists are therefore encouraged to improve vaccination rates by providing accurate information. This study evaluated the impact of educational interventions on pharmacists' knowledge and willingness to recommend the HPV vaccine.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Geology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
In oil-rich regions, the increasing risk of oil spills on soil is largely attributed to intensified extraction and transportation activities. This situation necessitates a focus on the short-term and long-term strength of contaminated soils. While existing literature primarily evaluates the oil-contaminated soils over short-term periods, typically up to 28 days, it is essential to investigate their long-term performance, extending the evaluation period to 365 days.
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