• Parasites, Hosts and Diseases
• /
• 제56권6호
• /
• pp.619-623
• /
• 2018

Bovine coccidiosis is one of the most important parasitic diseases affecting calf productivity. Here, we investigated the prevalence of Eimeria spp. in pre-weaned native Korean calves and determined the correlation between diarrhea and Eimeria spp. Fecal samples were collected from individual calves (288 normal and 191 diarrheic) in 6 different farms. Of the 479 samples, Eimeria oocysts were detected in 124 calves (25.9%). Five Eimeria spp. were identified; E. zuernii (18.8%) was the most prevalent, followed by E. auburnensis (12.5%), E. bovis (7.5%), E. subspherica (5.8%), and E. bukidnonensis (1.0%). A significant correlation was observed between diarrhea and mixed infection with more than 2 Eimeria spp. (odds ratio [OR]=2.21; 95% confidence interval [CI]: 1.09-4.49; P=0.03) compared to single infection (OR=1.29; 95% CI: 0.77-2.15; P=0.33). Of the 5 Eimeria spp. identified, E. subspherica (95% CI: 1.24-5.61; P=0.01) and E. bukidnonensis (95% CI: 825.08-1,134.25; P=0.00) strongly increased the risk of diarrhea by 2.64-fold and 967.39-fold, respectively, compared to other species. Moreover, mixed infection with E. auburnensis and E. bukidnonensis was significantly associated with diarrhea (OR=2,388.48; 95% CI: 1,009.71-5,650.00; P<0.00) in pre-weaned native Korean calves. This is the first report to demonstrate the importance of E. bukidnonensis associated with diarrhea in pre-weaned native Korean calves. Further epidemiological studies should investigate the prevalence of E. bukidnonensis and the association between E. bukidnonensis and diarrhea.

• Clinical and Experimental Pediatrics
• /
• 제62권1호
• /
• pp.36-41
• /
• 2019

Purpose: In this study, we investigated the clinical features and prognostic factors of early-onset sepsis (EOS) in neonatal intensive care unit (NICU) patients. Methods: A retrospective analysis was conducted on medical records from January 2010 to June 2017 (7.5 years) of a university hospital NICU. Results: There were 45 cases of EOS (1.2%) in 3,862 infants. The most common pathogen responsible for EOS was group B Streptococcus (GBS), implicated in 10 cases (22.2%), followed by Escherichia coli, implicated in 9 cases (20%). The frequency of gram-positive sepsis was higher in term than in preterm infants, whereas the rate of gram-negative infection was higher in preterm than in term infants (P<0.05). The overall mortality was 37.8% (17 of 45), and 47% of deaths occurred within the first 3 days of infection. There were significant differences in terms of gestational age (26.8 weeks vs. 35.1 weeks) and birth weight (957 g vs. 2,520 g) between the death and survival groups. After adjustments based on the difference in gestational age and birth weight between the 2 groups, gram-negative pathogens (odds ratio [OR], 42; 95% confidence interval [CI], 1.4-1,281.8) and some clinical findings, such as neutropenia (OR, 46; 95% CI, 1.3-1,628.7) and decreased activity (OR, 34; 95% CI, 1.8-633.4), were found to be associated with fatality. Conclusion: The common pathogens found to be responsible for EOS in NICU patients are GBS and E. coli. Gram-negative bacterial infections, decreased activity in the early phase of infection, and neutropenia were associated with poor outcomes.

• Journal of Veterinary Science
• /
• 제23권6호
• /
• pp.85.1-85.11
• /
• 2022

Background: Neonatal calf diarrhea is a major problem in the cattle industry worldwide. Rotavirus and Cryptosporidium parvum are the primary causative agents, especially during the first three weeks of the calf's life. Objectives: This study investigated the differences in acid-base, electrolytes, and biochemical parameters of diarrheic calves with infection of either rotavirus or C. parvum. Methods: A total of 61 Korean native calves (≤ 20 days old) were divided into two groups based on rotavirus or C. parvum infections: rotavirus infection (n = 44) and C. parvum infection (n = 17). The calves with at a specific blood pH range (pH 6.92-7.25) were chosen for comparison. The acid-base, electrolyte, chemistry, and serum proteins were analyzed, Further, fecal examinations were performed. Results: Compared to C. parvum-infected calves, the rotavirus-infected calves showed lower levels of total carbon dioxide, bicarbonate (HCO₃^-), anion gap, total protein, and albumin/globulin ratio, and significantly lower levels of potassium, globulin, and α2-globulin (p < 0.05). The C. parvum-infected calves (r = 0.749) had stronger correlations between pH and HCO₃^- than the rotavirus-infected calves (r = 0.598). Compared to rotavirus-infected calves, strong correlations between globulin and α2-globulin, α2-globulin and haptoglobin were identified in C. parvum-infected calves. Conclusions: This study is the first to investigate acid-base, electrolyte, and biochemical parameters in calves in response to infections of rotavirus and C. parvum. Although rotavirus and C. parvum cause malabsorptive and secretory diarrhea in similar-aged calves, blood parameters were different. This would help establish the diagnostic and treatment strategies.

• Childhood Kidney Diseases
• /
• 제26권1호
• /
• pp.52-57
• /
• 2022

Purpose: To determine predictive factors for detecting renal parenchymal damages (RPDs) in infants with recurrent febrile urinary tract infection (fUTI). Methods: From January 2015 to December 2021, 102 infants with recurrent fUTI and who underwent ^99mTc-dimercaptosuccinic acid (DMSA) renal scan in our hospital were included in this study. Controls included infants with normal DMSA results performed 3 months apart from the 2nd episode of fUTI. DMSA-positive group included infants with positive DMSA results performed 3 months apart from the 2nd episode of fUTI or at the 3rd episode of fUTI. The recurrence rate, causative bacteria, renal size discrepancy of both kidneys, and laboratory findings including C-reactive protein (CRP) and spot urine sodium-to-potassium ratio (uNa/K) were compared between both groups. Results: Only 3.8% of 79 infants with a 2nd episode of fUTI showed positive DMSA results. fUTI recurred more frequently within 12 months of follow-up in the DMSA-positive group than in the control group (69% vs. 13%, P<0.001). CRP values were significantly higher in the DMSA-positive group than in the control group (7.3 mg/dL vs. 3.7 mg/dL, P<0.001). Spot uNa/K were significantly lower in the DMSA-positive group than in the control group (0.6 vs. 1.1, P<0.001). Conclusions: Congenital renal scar and RPDs on the DMSA scan were more frequently found in infants with recurrent fUTI than those in the control group. High CRP values and low spot uNa/K in acute infections were helpful in predicting the presence of RPD in infants with recurrent fUTI.

• 한국보건간호학회지
• /
• 제37권2호
• /
• pp.218-232
• /
• 2023

Purpose: This study was undertaken to identify the risk factors of genital infection by examining the genital hygiene practice followed by adult women of reproductive age. The results can be applied as basic data for health education and health management on female genital hygiene practices. Methods: Data ware collected by conducting an online survey, comprising 200 adult women of reproductive age. Genital infections according to genital hygiene practice were analyzed by simple logistic regression. Results: In this study, the Odds Ratio (OR) of genital infection occurrence of genital hygiene practices used were disposable briefs 4.11 (CI 1.79-9.39, p=0.020), feminine deodorant spray 3.13 (CI 1.37-7.15, p=0.007), deodorant, vaginal inserts (tabs/supp) 10.60 (CI 3.97-28.28, p<0.001), over the counter anti-itch products 3.73 (CI 1.67-8.34, p=0.001), blotting 11.47 (CI 4.62-28.48, p<0.001), natural sea sponge 4.98 (CI 2.04-12.15, p<0.001), reusable cotton pads 5.76 (CI 2.48-13.33, p<0.001), tampons 2.60 (CI 1.17-5.77, p=0.019), tampons/pads between periods 4.79 (CI 2.07-11.10, p<0.001) and tampons/pads combination 4.11 (CI 1.79-9.39, p=0.001) Conclusion: Our results indicated the necessity to refrain from unnecessary application of genital hygiene practices, which is highly related to genital infections identified in this study. There is a need to continue education for proper performance.

• Hip & pelvis
• /
• 제35권4호
• /
• pp.217-227
• /
• 2023

Purpose: Periprosthetic femoral fracture (PFF) is a common complication after total hip arthroplasty, and open reduction and internal fixation (ORIF) is a common surgical treatment. We conducted a meta-analysis to compare the outcomes of ORIF in patients with different fracture patterns (Vancouver B1 and B2). Materials and Methods: We conducted a systematic search of PubMed, Embase, Cochrane Library and KoreaMed from inception to August 2022. We conducted a pair-wise meta-analysis (with a fixed-effects model) on the 10 comparative studies and a proportional meta-analysis on the data from the 39 articles to determine a consensus. The outcomes were the incidence of reoperations that included osteosynthesis, irrigation/debridement and revision arthroplasty. Results: The pair-wise meta-analysis showed similar outcomes between two groups; the risk of reoperation (odds ratio [OR]=0.82, confidence interval [CI] 0.43-1.55, P=0.542), nonunion (OR=0.49; CI 0.22-1.10, P=0.085) and deep infection (OR=1.89, CI 0.48-7.46, P=0.361). In proportion meta-analysis, pooled prevalence of reoperation was 9% (95% CI, 6-12) in B1 and 8% (95% CI, 2-15) in B2 (heterogeneity between two groups (Q), P=0.772). The pooled prevalence of nonunion was same as of 4% in B1 and B2 (Q, P=0.678), and deep infection was 2% (95% CI, 1-3) in B1 and 4% (95% CI, 2-7) in B2 (Q, P=0.130). Conclusion: ORIF is a feasible treatment for B1 and B2 periprosthetic femoral fractures, with acceptable outcomes in terms of, nonunion and infection. The results of this study would help clinicians and provide baseline data for further studies validating PFF.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권18호
• /
• pp.7635-7638
• /
• 2014

Background: The aim of this study was to investigate the value of serum gastric markers to differentiate between patients with precancerous lesions and nonatrophic chronic gastritis. Materials and Methods: Serum samples of 128 patients with dyspepsia who were candidates for endoscopic examination were tested for pepsinogen (PG I and PG II), PG I/II ratio, gastrin 17(G-17), anti-Helicobacter pylori (anti-H pylori ) and anti-CagA antibodies. Two sample t-tests, chi-square tests and Pearson's correlation analyses were used for analysis using SPSS (version 20). Results: PGI, PG I/II ratio values were decreased significantly in the precancerous lesion group (0.05, 0.001 respectively). The frequency of H pylori infection was significantly (p=0.03) different between the two groups ofthe study. Conclusions: We suggest PGI and the PG I/II ratio as valuable markers for screening of premalignant gastric lesions.

• 치위생과학회지
• /
• 제22권2호
• /
• pp.99-107
• /
• 2022

Background: Obesity weakens acquired immunity and causes infection. This study aimed to investigate the relationship between the inflammatory markers in the gingival crevicular fluid and serum and periodontal bacteria in saliva through obesity control for 4 weeks. Methods: Forty-six subjects with a body mass index (BMI) of ≥23 kg/m² stayed in the camp for 4 weeks, followed by exercise and a low salt-low fat diet. Body size measurements, oral examinations, blood, saliva, and gingival crevicular fluid were collected before and after the program. C-reactive protein (CRP) in serum, matrix metalloproteinase (MMP)-8, MMP-9, and interleukin (IL)-1β in the gingival sulcus fluid were measured. After extracting bacterial genomic DNA from saliva, the presence of periodontal bacteria were detected using Taq probe. The relationship of each index before and after the program was analyzed through paired t-test and partial correlation analysis. Results: Campylobacter rectus (Cr) increased after the program, and there was no significant change in other bacteria. Serum CRP and Fusobacterium nucleatum (Fn), Aggregatibacter actinomycetemcomitans, Cr, ratio of Fn, and ratio of Cr had a positive relationship at baseline; however, the relationship was not significant after the program. Ratio of Prevotella intermedia had a positive relationship with MMP-9, MMP-8, IL-1β at baseline. Moreover, the ratio of Treponema denticola and the ratio of Tannerella forsythia showed a positive relationship with MMP-8, MMP-9, and IL-1β. The relationship between the ratio of Porphyromonas gingivalis and IL-1β showed a constant positive relationship at baseline and after the program. Conclusion: Obesity control program in subjects with a BMI of ≥23 kg/m² accompanied by diet and exercise did not affect the changes in periodontal bacteria itself, but changes in the relationship between periodontal bacteria and serum CRP, the relationship between the inflammatory index in the gingival crevicular fluid and periodontal bacteria was observed.

• Pediatric Infection and Vaccine
• /
• 제14권1호
• /
• pp.62-68
• /
• 2007

목 적 : Henoch-Sch$\ddot{o}$nlein 자반증(HSP)의 원인 및 발병기전이 현재까지 뚜렷히 밝혀지지는 않았으나 음식, 약물에 대한 과민성, 감염 등으로 오는 것으로 생각되며 면역글로불린 A를 포함한 면역 복합체에 의한 소혈관의 염증반응으로 보는 면역학적 기전이 중요한 역할을 하는 것으로 알려져 있다. 본 연구에서는 HSP와 마이코플라스마 감염증의 연관성을 알아보았다. 방 법 : 2002년 1월부터 2005년 12월까지 인제대학교 일산백병원 소아과에서 HSP 로 진단받은 98명의 환아들을 대상으로 임상적 특징에 대해 후향적 조사를 하였고 마이코플라스마 비연관성 HSP 환자군(A군)과 마이코플라스마 연관성 환자군(B군) 사이의 임상적 특징을 비교해 보았다. 결 과 : 1) 마이코플라스마 특이항체 검사상 양성(${\geq}1:320$)이거나, 혹은 추적 검사상 항체 검사치가 4배 이상 증가한 경우는 98명 중 14명(14.3%)에서 관찰되었고, 1례에서 전형적인 마이코플라스마 폐렴소견을 보인 환자에서 마이코플라스마 항체가가 1:1280이었다. 2) A군과 B군에서 남녀의 비는 1.21:1, 1.80:1, 평균 연령은 $6.7{\pm}2.5$세, $5.9{\pm}1.9$세였다. 월별 발생율은 A군에서는 11월과 12월에 각각 13명(15.5%)으로 가장 높았으며, B군에서는 11월에 3명(21.4%)으로 가장 높았다. 3) A군와 B군에서 각각 자반은 84명(100%), 14명(100%), 관절염은 57명(67.9%), 8명(57.1%), 신염은 21명(25.0%), 5명(35.7%), 복통은 57명(67.9%), 9명(64.3%)에서 보였다. 관절염은 모든 군에서 발/발목부위에서 가장 흔히 나타났다. 결 론 : 이번 연구에서 전체 HSP 환아 98명 중 14명(14.3%)에서 마이코플라스마 항체 양성이나 4배 이상의 혈청 역가의 상승을 보였으나 마이코플라스마 연관성 HSP군과 마이코플라스마 비연관성 HSP군 간의 명확한 임상적 차이는 없었다. HSP 환아에서 정상 환아들보다 마이코플라스마 항체 양성율이 높고 1례에서 마이코플라스마 폐렴과 HSP가 동반되는 등 HSP와 마이코플라스마 감염증간의 연관성이 의심되나 앞으로 HSP의 원인으로 마이코플라스마 감염증의 관련성을 밝히기 위해 향후 더 많은 전향적인 연구가 필요하겠다.

• Pediatric Infection and Vaccine
• /
• 제18권1호
• /
• pp.40-47
• /
• 2011

목 적 : 노로바이러스는 바이러스성 설사의 흔한 원인이며, 면역 저하 환자에서도 심각한 감염증을 유발하는 것으로 알려져 있어, 소아 암환자에서 노로바이러스 감염의 임상 양상을 알아보고자 하였다. 방 법: 2008년 11월부터 2009년 9월까지 삼성 서울병원에 입원한 환아 중 대변에서 노로바이러스 PCR 양성을 보였던 소아 암환자를 대상으로 하였고, 이들의 의무기록을 후향적으로 분석하였다. 결 과:연구에 포함된 환자는 총 10명이었으며, 이들 연령의 중앙값은 0.83세, 남녀의 비율은 1.5대 1이었다. 기저질환은 혈액암 4명, 신경모세포종 4명, 뇌종양 2명이었고, 감염 진단 당시 조혈모세포이식 수여자는 4명이었다. 모든 환자에서 설사 증상을 보였으며, 설사 횟수의 중앙값은 8.5회/일, 바이러스 배출 기간의 중앙값은 72.5일이었다. 장기종 소견을 보인 4명의 환자는 금식 및 총정맥 영양을 투여 받았으며, 노로바이러스 관련 사망은 관찰되지 않았다. 결 론 : 노로바이러스 감염은 소아 암환자에서 다양한 임상 증상을 유발 할 수 있으며, 이들 면역저하 환자에서 바이러스 배출 기간이 매우 길어, 설사가 있는 암환자에서 고려해야 할 바이러스 감염이다.