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  1. Article ; Online: Presentations and Outcomes Among Infants ≤90 Days With and Without SARS-CoV-2.

    Burstein, Brett / Sabhaney, Vikram / Florin, Todd A / Xie, Jianling / Kuppermann, Nathan / Freedman, Stephen B

    Pediatrics

    2024  Volume 153, Issue 4

    Abstract: Objectives: To compare symptoms and outcomes among infants aged ≤90 days tested for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a broad, international sample of emergency departments (EDs).: Methods: This was a secondary analysis ... ...

    Abstract Objectives: To compare symptoms and outcomes among infants aged ≤90 days tested for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a broad, international sample of emergency departments (EDs).
    Methods: This was a secondary analysis of infants aged 0 to 90 days with suspected SARS-CoV-2 infections tested using molecular approaches and with 14-day follow-up. The parent studies were conducted at 41 EDs in 10 countries (the global Pediatric Emergency Research Network; March 2020-June 2021) and 14 EDs across Canada (Pediatric Emergency Research Canada network; August 2020-February 2022). Symptom profiles included presence and number of presenting symptoms. Clinical outcomes included hospitalization, ICU admission, and severe outcomes (a composite of intensive interventions, severe organ impairment, or death).
    Results: Among 1048 infants tested for SARS-CoV-2, 1007 (96.1%) were symptomatic at presentation and 432 (41.2%) were SARS-CoV-2-positive. A systemic symptom (any of the following: Apnea, drowsiness, irritability, or lethargy) was most common and present in 646 (61.6%) infants, regardless of SARS-CoV-2 status. Although fever and upper respiratory symptoms were more common among SARS-CoV-2-positive infants, dehydration, gastrointestinal, skin, and oral symptoms, and the overall number of presenting symptoms did not differ between groups. Infants with SARS-CoV-2 infections were less likely to be hospitalized (32.9% vs 44.8%; difference -11.9% [95% confidence interval (CI) -17.9% to -6.0%]), require intensive care (1.4% vs 5.0%; difference -3.6% [95% CI -5.7% to -1.6%]), and experience severe outcomes (1.4% vs 5.4%; difference -4.0% [95% CI -6.1% to -1.9%]).
    Conclusions: SARS-CoV-2 infections may be difficult to differentiate from similar illnesses among the youngest infants but are generally milder. SARS-CoV-2 testing can help inform clinical management.
    MeSH term(s) Child ; Humans ; SARS-CoV-2 ; COVID-19/diagnosis ; COVID-19 Testing ; Critical Care ; Lethargy
    Language English
    Publishing date 2024-03-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 207677-9
    ISSN 1098-4275 ; 0031-4005
    ISSN (online) 1098-4275
    ISSN 0031-4005
    DOI 10.1542/peds.2023-064949
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Inflammatory Markers in Febrile Young Infants With and Without SARS-CoV-2 Infections.

    Burstein, Brett / Florin, Todd A / Sabhaney, Vikram / Xie, Jianling / Freedman, Stephen B / Kuppermann, Nathan

    Pediatrics

    2024  Volume 153, Issue 2

    MeSH term(s) Infant ; Humans ; COVID-19 ; SARS-CoV-2 ; Fever/etiology
    Language English
    Publishing date 2024-01-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 207677-9
    ISSN 1098-4275 ; 0031-4005
    ISSN (online) 1098-4275
    ISSN 0031-4005
    DOI 10.1542/peds.2023-063857
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Visits to Alberta Emergency Departments for Child Mental Health Concerns During the COVID-19 Pandemic: An Examination of Visit Trends in Relation to School Closures and Reopenings.

    Newton, Amanda S / Xie, Jianling / Wright, Bruce / Lategan, Conné / Winston, Kathleen / Freedman, Stephen B

    Pediatric emergency care

    2023  Volume 39, Issue 7, Page(s) 542–547

    Abstract: Objective: We examined emergency department (ED) mental health visit trends by children in relation to periods of school closure and reopening during the COVID-19 pandemic in Alberta, Canada.: Methods: Mental health visits by school-aged children (5 ... ...

    Abstract Objective: We examined emergency department (ED) mental health visit trends by children in relation to periods of school closure and reopening during the COVID-19 pandemic in Alberta, Canada.
    Methods: Mental health visits by school-aged children (5 to <18 years) were extracted from the Emergency Department Information System, a province-wide database, from March 11, 2020, to November 30, 2021 (pandemic period; n = 18,997) and March 1, 2019, to March 10, 2020 (1-year, prepandemic comparator period; n = 11,540). We calculated age-specific visit rates and compared rate differences between periods of school closure (March 15-June 30, 2020; November 30, 2020-January 10, 2021; April 22-June 30, 2021) and reopening (September 4-November 29, 2020; January 11-April 21, 2021; September 3-November 30, 2021) to matched prepandemic periods. We used a ratio of relative risk to examine the risk of a visit during closures versus reopenings.
    Results: The cohort included 11,540 prepandemic visits and 18,997 pandemic visits. Compared with prepandemic periods, ED visit rates increased across all ages during the first (+85.53%; 95% confidence interval [CI], 73.68% to 100.41%) and third (+19.92%; 95% CI, 13.28% to 26.95%) school closures, and decreased during the second closure (-15.37%; 95% CI, -22.22% to -7.92%). During school reopenings, visit rates decreased across all ages during the first reopening (-9.30%; 95% CI, -13.94% to -4.41%) and increased during the third reopening (+13.59%; 95% CI, 8.13% to 19.34%); rates did not change significantly during the second reopening (2.54%; 95% CI, -3.45% to 8.90%). The risk of a visit during school closure versus reopening was only higher for the first closure with 2.06 times the risk (95% CI, 1.88 to 2.25).
    Conclusions: Emergency department mental health visit rates were highest during the first school closure of the COVID-19 pandemic, and the risk of a visit during this closure period was twice compared with when schools first reopened.
    MeSH term(s) Humans ; Child ; COVID-19/epidemiology ; Pandemics ; Alberta/epidemiology ; Mental Health ; Emergency Service, Hospital
    Language English
    Publishing date 2023-05-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632588-9
    ISSN 1535-1815 ; 0749-5161
    ISSN (online) 1535-1815
    ISSN 0749-5161
    DOI 10.1097/PEC.0000000000002979
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Liver transaminase concentrations in children with acute SARS-CoV-2 infection.

    Sumner, Madeleine W / Florin, Todd A / Kuppermann, Nathan / Xie, Jianling / Tancredi, Daniel J / Freedman, Stephen B

    Clinical biochemistry

    2023  Volume 118, Page(s) 110588

    Abstract: Objective: To evaluate the relationship between SARS-CoV-2 infection and liver injury by comparing transaminase concentrations among children tested for SARS-CoV-2 and other respiratory viruses in pediatric emergency departments.: Design & methods: ... ...

    Abstract Objective: To evaluate the relationship between SARS-CoV-2 infection and liver injury by comparing transaminase concentrations among children tested for SARS-CoV-2 and other respiratory viruses in pediatric emergency departments.
    Design & methods: Eligible children were <18 years with suspected SARS-CoV-2, tested using molecular approaches in emergency departments between March 7, 2020, and June 15, 2021 (Pediatric Emergency Research Network), and between August 6, 2020, and February 22, 2022 (Pediatric Emergency Research Canada). We compared aspartate (AST) and alanine aminotransferase (ALT) concentrations at presentation for SARS-CoV-2 and other respiratory viruses through a multivariate linear regression model, with the natural log of serum transaminase concentrations as dependent variables.
    Results: Of 16,892 enrolled children, 2,462 (14.6%) had transaminase concentrations measured; 4318 (25.6%) were SARS-CoV-2 positive, and 3932 (23.3%) were tested for additional respiratory viruses. Among study participants who had additional respiratory virus testing performed, the most frequently identified viruses were enterovirus/rhinovirus [8.7% (343/3,932)], respiratory syncytial virus [4.6% (181/3,932)], and adenovirus [2.6% (103/3,932)]. Transaminase concentrations were elevated in 25.6% (54/211) of children with isolated SARS-CoV-2 detection and 21.6% (117/541) of those with no virus isolated; P = 0.25. In the multivariable model, isolated SARS-CoV-2 detection was not associated with elevated ALT (adjusted geometric mean ratio (IU/L): 0.96; 95%Confidence Interval (CI): 0.84, 1.08) or AST (adjusted geometric mean ratio (IU/L): 1.03; 95%CI: 0.92, 1.16) concentrations, with negative respiratory panel as the referent group. Ninety-day follow-up was completed in 82.2% (3,550/4,318) of SARS-CoV-2 positive children; no cases of new-onset liver disease were reported.
    Conclusion: Among those tested, transaminase concentrations did not vary between SARS-CoV-2-positive children and those with a negative respiratory viral panel. In multivariate analysis, SARS-CoV-2 infection was not associated with increased initial transaminase concentrations compared to other respiratory viruses.
    MeSH term(s) Humans ; Child ; COVID-19 ; SARS-CoV-2 ; Liver Diseases ; Alanine Transaminase
    Chemical Substances Alanine Transaminase (EC 2.6.1.2)
    Language English
    Publishing date 2023-05-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 390372-2
    ISSN 1873-2933 ; 0009-9120
    ISSN (online) 1873-2933
    ISSN 0009-9120
    DOI 10.1016/j.clinbiochem.2023.110588
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Regulation of mRNA Translation by Hormone Receptors in Breast and Prostate Cancer.

    Xie, Jianling / Kusnadi, Eric P / Furic, Luc / Selth, Luke A

    Cancers

    2021  Volume 13, Issue 13

    Abstract: Breast and prostate cancer are the second and third leading causes of death amongst all cancer types, respectively. Pathogenesis of these malignancies is characterised by dysregulation of sex hormone signalling pathways, mediated by the estrogen receptor- ...

    Abstract Breast and prostate cancer are the second and third leading causes of death amongst all cancer types, respectively. Pathogenesis of these malignancies is characterised by dysregulation of sex hormone signalling pathways, mediated by the estrogen receptor-α (ER) in breast cancer and androgen receptor (AR) in prostate cancer. ER and AR are transcription factors whose aberrant function drives oncogenic transcriptional programs to promote cancer growth and progression. While ER/AR are known to stimulate cell growth and survival by modulating gene transcription, emerging findings indicate that their effects in neoplasia are also mediated by dysregulation of protein synthesis (i.e., mRNA translation). This suggests that ER/AR can coordinately perturb both transcriptional and translational programs, resulting in the establishment of proteomes that promote malignancy. In this review, we will discuss relatively understudied aspects of ER and AR activity in regulating protein synthesis as well as the potential of targeting mRNA translation in breast and prostate cancer.
    Language English
    Publishing date 2021-06-29
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers13133254
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Erratum for "Constitutively active Rheb mutants [T23M] and [E40K] drive increased production and secretion of recombinant protein in Chinese hamster ovary cells" (Vol. 118, Issue 7, pp. 2422-2434).

    Poi, Stuart P De / Xie, Jianling / Smales, C Mark / Proud, Christopher G

    Biotechnology and bioengineering

    2021  Volume 119, Issue 2, Page(s) 667–669

    Language English
    Publishing date 2021-12-06
    Publishing country United States
    Document type Published Erratum
    ZDB-ID 280318-5
    ISSN 1097-0290 ; 0006-3592
    ISSN (online) 1097-0290
    ISSN 0006-3592
    DOI 10.1002/bit.27999
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Correction to "Using Imidazo[2,1-

    Jin, Xin / Qiu, Tingting / Xie, Jianling / Wei, Xianfeng / Wang, Xuemin / Yu, Rilei / Proud, Christopher / Jiang, Tao

    ACS medicinal chemistry letters

    2023  Volume 14, Issue 3, Page(s) 344

    Abstract: This corrects the article DOI: 10.1021/acsmedchemlett.2c00442.]. ...

    Abstract [This corrects the article DOI: 10.1021/acsmedchemlett.2c00442.].
    Language English
    Publishing date 2023-02-08
    Publishing country United States
    Document type Published Erratum
    ISSN 1948-5875
    ISSN 1948-5875
    DOI 10.1021/acsmedchemlett.3c00036
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Comparison of a Rapid Multiplex Gastrointestinal Panel with Standard Laboratory Testing in the Management of Children with Hematochezia in a Pediatric Emergency Department: Randomized Controlled Trial.

    Xie, Jianling / Kim, Kelly / Berenger, Byron M / Chui, Linda / Vanderkooi, Otto G / Grisaru, Silviu / Freedman, Stephen B

    Microbiology spectrum

    2023  Volume 11, Issue 3, Page(s) e0026823

    Abstract: Advances in diagnostic microbiology allow for the rapid identification of a broad range of enteropathogens; such knowledge can inform care and reduce testing. We conducted a randomized, unblinded trial in a tertiary-care pediatric emergency department. ... ...

    Abstract Advances in diagnostic microbiology allow for the rapid identification of a broad range of enteropathogens; such knowledge can inform care and reduce testing. We conducted a randomized, unblinded trial in a tertiary-care pediatric emergency department. Participants had stool (and rectal swabs if stool was not immediately available) tested using routine microbiologic approaches or by use of a device (BioFire FilmArray gastrointestinal panel), which identifies 22 pathogens with a 1-h instrument turnaround time. Participants were 6 months to <18.0 years and had acute bloody diarrhea. Primary outcome was performance of blood tests within 72 h. From 15 June 2018 through 7 May 2022, 60 children were randomized. Patients in the BioFire FilmArray arm had a reduced time to test result (median 3.0 h with interquartile range [IQR] of 3.0 to 4.0 h, versus 42.0 h (IQR 23.5 to 47.3 h); difference of -38.0 h, 95% confidence interval [CI] of -41.0 to -22.0 h). Sixty-five percent (20/31) of participants in the BioFire FilmArray group had a pathogen detected-most frequently enteropathogenic Escherichia coli (19%), Campylobacter (16%), and Salmonella (13%). Blood tests were performed in 52% of children in the BioFire FilmArray group and 62% in the standard-of-care group (difference of -10.5%, 95% CI of -35.4% to 14.5%). There were no between-group differences in the proportions of children administered intravenous fluids, antibiotics, hospitalized, or who had diagnostic imaging performed. Testing with the BioFire FilmArray reduced the time to result availability by 38 h. Although statistical significance was limited by study power, BioFire FilmArray use was not associated with clinically meaningful reductions in health care utilization or improved outcomes.
    MeSH term(s) Humans ; Child ; Gastroenteritis/microbiology ; Diarrhea/diagnosis ; Diarrhea/microbiology ; Emergency Service, Hospital ; Gastrointestinal Hemorrhage/diagnosis ; Gastrointestinal Hemorrhage/therapy
    Language English
    Publishing date 2023-04-11
    Publishing country United States
    Document type Randomized Controlled Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.00268-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Predictors of Adherence to Short-Course Probiotics Among Children with Gastroenteritis who are Enrolled in a Clinical Trial.

    Hurley, Katrina F / Fitzpatrick, Eleanor A / Xie, Jianling / Urquhart, Sarah / Farion, Ken J / Gouin, Serge / Schuh, Suzanne / Poonai, Naveen / Freedman, Stephen

    Clinical and investigative medicine. Medecine clinique et experimentale

    2023  Volume 46, Issue 1, Page(s) E15–23

    Abstract: Background: To improve our understanding of adherence to discharge medications in the ED and within research trials, we sought to quantify medication adherence and identify predictors thereof in children with acute gastroenteritis (AGE).: Methods: We ...

    Abstract Background: To improve our understanding of adherence to discharge medications in the ED and within research trials, we sought to quantify medication adherence and identify predictors thereof in children with acute gastroenteritis (AGE).
    Methods: We conducted a secondary analysis of a randomized trial of twice daily probiotic for 5 days. The population included previously healthy children aged 3-47 months with AGE. The primary outcome was patient-reported adherence to the treatment regimen, defined a priori as having received >70% of the prescribed doses. Secondary outcomes included predictors of treatment adherence and concordance between patient-reported adherence and the returned medication sachet counts.
    Results: After excluding participants with missing data on adherence, 760 participants were included in this analysis: 383 in the probiotic arm (50.4%); and 377 in the placebo arm (49.6%). Self-reported adherence was similar in both groups (77.0% in probiotic versus 80.3% in placebo). There was good agreement between self-reported adherence and sachet counts (87% within limits of agreement (-2.9 to 3.5 sachets) on the Bland-Altman plots). In the multivariable regression model, covariates associated with adherence were greater number of days of diarrhea post-emergency department visit, and the study site; covariates negatively associated with adherence were age 12-23 months, severe dehydration and greater total number of vomiting and diarrhea episodes after enrolment.
    Conclusions: Longer duration of diarrhea and study site were associated with higher probiotic adherence. Age 12-23 months, severe dehydration and greater number of vomiting and diarrhea episodes post enrolment negatively predicted treatment adherence.
    MeSH term(s) Child ; Humans ; Infant ; Dehydration/complications ; Diarrhea/drug therapy ; Diarrhea/complications ; Gastroenteritis/drug therapy ; Gastroenteritis/complications ; Probiotics/therapeutic use ; Vomiting/complications ; Vomiting/therapy
    Language English
    Publishing date 2023-03-26
    Publishing country Canada
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 434004-8
    ISSN 1488-2353 ; 0147-958X
    ISSN (online) 1488-2353
    ISSN 0147-958X
    DOI 10.25011/cim.v46i1.39560
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Biocompatibility and antibacterial activity of MgO/Ca3(PO4)2 composite ceramic scaffold based on vat photopolymerization technology.

    Ge, Mengxing / Xie, Deqiao / Yang, Youwen / Liang, Huixin / Gu, Jiasen / Zhang, Qiuwei / Xie, Jianling / Tian, Zongjun

    Biomaterials advances

    2023  Volume 154, Page(s) 213644

    Abstract: Recent advancements in medical technology and increased interdisciplinary research have facilitated the development of the field of medical engineering. Specifically, in bone repair, researchers and potential users have placed greater demands on ... ...

    Abstract Recent advancements in medical technology and increased interdisciplinary research have facilitated the development of the field of medical engineering. Specifically, in bone repair, researchers and potential users have placed greater demands on orthopedic implants regarding their biocompatibility, degradation rates, antibacterial properties, and other aspects. In response, our team developed composite ceramic samples using degradable materials calcium phosphate and magnesium oxide through the vat photopolymerization (VP) technique. The calcium phosphate content in each sample was, respectively, 80 %, 60 %, 40 %, and 20 %. To explore the relationship between the biocompatibility, antibacterial activity, and MgO content of the samples, we cultured them with osteoblasts (MC3T3-E1), Escherichia coli (a gram-negative bacterium), and Staphylococcus aureus (a gram-positive bacterium). Our results demonstrate that as the MgO content of the sample increases, its biocompatibility improves but its antibacterial activity decreases. Regarding the composite material samples, the 20 % calcium phosphate content group exhibited the best biocompatibility. However, after 0.5 h of co-cultivation, the antibacterial rates of all groups except the 20 % calcium phosphate content group co-cultured with S. aureus exceed 80 %. Furthermore, after 3 h, the antibacterial rates against E. coli exceed 95 % in all groups. This is because higher levels of MgO correspond to lower pH values and Mg
    MeSH term(s) Magnesium Oxide/pharmacology ; Magnesium Oxide/chemistry ; Staphylococcus aureus ; Escherichia coli ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry ; Calcium Phosphates/pharmacology ; Calcium Phosphates/chemistry ; Ceramics/pharmacology ; Technology
    Chemical Substances Magnesium Oxide (3A3U0GI71G) ; Anti-Bacterial Agents ; Calcium Phosphates
    Language English
    Publishing date 2023-09-29
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2772-9508
    ISSN (online) 2772-9508
    DOI 10.1016/j.bioadv.2023.213644
    Database MEDical Literature Analysis and Retrieval System OnLINE

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