bluuebunny/crossref_metadata_2025_split huggingface dataset:
Captivity reduces diversity and shifts composition of the Brown Kiwi microbiome
Authors: San Juan Priscilla A. , Castro Isabel , Dhami Manpreet K. 
Published: July 2021

Abstract
Background
Captive rearing is often critical for animals that are vulnerable to extinction in the wild. However, few studies have investigated the extent to which captivity impacts hosts and their gut microbiota, despite mounting evidence indicating that host health is affected by gut microbes. We assessed the influence of captivity on the gut microbiome of the Brown Kiwi (Apteryx mantelli), a flightless bird endemic to New Zealand. We collected wild (n = 68) and captive (n = 38) kiwi feces at seven sites on the north island of New Zealand.

Results
Using bacterial 16 S rRNA and fungal ITS gene profiling, we found that captivity was a significant predictor of the kiwi gut bacterial and fungal communities. Captive samples had lower microbial diversity and different composition when compared to wild samples. History of coccidiosis, a gut parasite primarily affecting captive kiwi, showed a marginally significant effect.

Conclusions
Our findings demonstrate captivity’s potential to shape the Brown Kiwi gut microbiome, that warrant further investigation to elucidate the effects of these differences on health.
Adaptation and implementation of the WHO Safe Childbirth Checklist around the world
Authors: Molina Rose L. , Benski Anne-Caroline , Bobanski Lauren , Tuller Danielle E. , Semrau Katherine E. A. 
Published: July 2021

Abstract
Background
The World Health Organization (WHO) published the WHO Safe Childbirth Checklist in 2015, which included the key evidence-based practices to prevent the major causes of maternal and neonatal morbidity and mortality during childbirth. We assessed the current use of the WHO Safe Childbirth Checklist (SCC) and adaptations regarding the SCC tool and implementation strategies in different contexts from Africa, Southeast Asia, Europe, and North America.

Methods
This explanatory, sequential mixed methods study—including surveys followed by interviews—of global SCC implementers focused on adaptation and implementation strategies, data collection, and desired improvements to support ongoing SCC use. We analyzed the survey results using descriptive statistics. In a subset of respondents, follow-up virtual semi-structured interviews explored how they adapted, implemented, and evaluated the SCC in their context. We used rapid inductive and deductive thematic analysis for the interviews.

Results
Of the 483 total potential participants, 65 (13.5%) responded to the survey; 55 completed the survey (11.4%). We analyzed completed responses from those who identified as having SCC implementation experience (n = 29, 52.7%). Twelve interviews were conducted and analyzed. Ninety percent of respondents indicated that they adapted the SCC tool, including adding clinical and operational items. Adaptations to structure included translation into local language, incorporation into a mobile app, and integration into medical records. Respondents reported variation in implementation strategies and data collection. The most common implementation strategies were meeting with stakeholders to secure buy-in, incorporating technical training, and providing supportive supervision or coaching around SCC use. Desired improvements included clarifying the purpose of the SCC, adding guidance on relevant clinical topics, refining items addressing behaviors with low adherence, and integrating contextual factors into decision-making. To improve implementation, participants desired political support to embed SCC into existing policies and ongoing clinical training and coaching.

Conclusion
Additional adaptation and implementation guidance for the SCC would be helpful for stakeholders to sustain effective implementation.
A stability-indicating HPLC method for estimation of doxylamine succinate in tablets and characterization of its major alkaline stress degradation product
Authors: Harde Minal T. , Lakade Sameer H. 
Published: July 2021

Abstract
Background
A new selective rapid RP-HPLC-DAD method was developed and evaluated for the quantification of doxylamine succinate (DOX) in bulk and pharmaceutical dosage form. The separation of DOX at different degradation conditions was achieved with a Kromasil C18 (4.6 × 250 mm, 5-μm particle size). The mobile phase employed comprised of phosphate buffer (pH 3.5) and methanol in the ratio of 45:55 v/v. The flow rate was kept maintained at 1.0 ml/min and eluents were detected at 262 nm. The drug was subjected to different stress conditions like acid, base, neutral, hydrolysis, oxidation, photolysis, and thermal degradation. The analytical performance of the proposed HPLC method was thoroughly validated in terms of linearity, precision, accuracy, specificity, robustness, detection, and quantification limits.

Results
The method produces linear responses that were found in the range of 10–50 μg/ml. The regression equation was found to be Y = 42984x − 10260. The correlation coefficient was found to be 0.9998. The LOD and LOQ for DOX were found to be 0.96 and 3.28 μg/ml, respectively. The short-term solution stability of DOX (100 μg/ml) was evaluated under (25 ± 2°C) storage condition and found to be 98.82 to 101%. The percentage recovery for DOX was in the range of 99.73 to 99.91%. The obtained results of the stress degradation study and peak purity data indicate the potential of the developed HPLC method to resolve degradants from DOX peak. The major alkaline degradation product was isolated using preparative chromatographic technique and extensive FT-IR was performed to ascertain the structure of the alkaline degradant.

Conclusion
It was concluded that the proposed method was simple, sensitive, accurate, cost-effective, and less time-consuming for the quantification of DOX. This method was successfully utilized for stability testing of commercially available DOX tablets. Hence, the proposed method can be applied for routine quality control of DOX in bulk drug as well as in marketed formulations.
Characterisation of nitrogen-containing organic compounds by UHPLC-Qtof-MS and anti-amylase activity from the chloroform extract of the bark of Rhizophora mucronata
Authors: Resmi P. , Jitha G. , Murali Vishnu , Gopinath Anu 
Published: July 2021

Abstract
Background
Medicinal importance of mangrove plant Rhizophora mucronata, a red mangrove species found in the Asian countries, has long been recognised in traditional systems of medicine. The identification of its phytoconstituents can be a starting point for the drug development. The aim of the work was to extend the current knowledge of phytoconstituents from R. mucronata and to explore its pharmacological importance in the treatment of diabetes mellitus. In the present study, we analysed the chloroform extract from the bark of the mangrove plant R. mucronata for nitrogen-containing constituents using UHPLC QTOF MS profiling, and α-amylase inhibition assay was carried out.

Results
Four nitrogen-containing compounds were identified from the chloroform extract of the bark of R. mucronata using UHPLC QTOF MS profiling. The compounds identified were N,N′-dicyclohexyl urea, a cryptolepine derivative (C17H15N3O), an aliphatic cyclic compound with hydroxyl and amino groups (C22H43NO), and C16H19NO2 (m/z 258.1495). The anti-amylase activity, an in vitro antidiabetic bioassay, of chloroform extract showed an IC50 value of 220.09 μg/ml.

Conclusions
This is the first report on the identification of nitrogen-containing compounds from the chloroform extract of the bark of the R. Mucronata. One of the compounds identified was a novel cryptolepine derivative (C16H13N3O), and it falls under the rare category indoloquinoline alkaloid. The chloroform extract also showed significant activity towards α-amylase inhibition assay. Thus, the study has gone some way towards our understanding of the efficacy of bark of the R. mucronata for the treatment of diabetes mellitus and is open for further research.
The neuroprotective attribution of Ocimum basilicum: a review on the prevention and management of neurodegenerative disorders
Authors: Seyed Mohamed Ali , Ayesha Siddiqua , Azmi Norazrina , Al-Rabae Fahad Mohamed , Al-Alawy Adel Ibrahim , Al-Zahrani Othman Rashed , Hawsawi Yousef 
Published: July 2021

Abstract
Background
Bioactive principles from various natural resources including medicinal herbs have always played a crucial role in healthcare settings and increasingly became key players in drug discovery and development for many biopharmaceutical applications. Additionally, natural products (NPs) have immense arrangement of distinctive chemical structures with diverse functional groups that motivated numerous investigators including synthetic chemists to discover new therapeutic entities. Numerous pre-clinical investigations involving the animal models have evident the usefulness of these NPs against various human diseases including neurodegenerative disorders (NDs).

Main text
Ocimum basilicum Linn (O. basilicum L.), also known as sweet basil, is well practiced in traditional healthcare systems and has been used to treat various human illnesses, which include malaria, skin disease, diarrhea, bronchitis, dysentery, arthritis, eye diseases, and insect bites and emphasize the significance of the ethno-botanical approach as a potential source of novel drug leads With the growing interest in advanced techniques, herbal medicine and medicinal plants explorations are still considered to be a novel resource for new pharmacotherapeutic discovery and development. O. basilicum L and its bioactive principles including apigenin, eugenol, myretenal, β-sitosterol, luteolin, rosmarinic acid, carnosic acid, essential oil (EO)-rich phenolic compounds, and others like anthocyanins and flavones could be of therapeutic values in NDs by exhibiting their neuro-protective efficacy on various signaling pathways. The present comprehensive review collected various related information using the following searching engines such as PubMed, Science Direct, Google Scholar, etc. and focused mainly the English written documents. The search period comprised of last two decades until present.

Conclusion
Although these efficacious plant genera of prime importance and has potential medical and socioeconomic importance, yet the pivotal evidence for its neuroprotective potential in novel clinical trials remains lacking. However, with the available wealth of obtainable literature on this medicinal plant, which supports this review and concludes that O. basilicum L may function as a promising therapeutics for the treatment of NDs.
Does Eustachian tube function affect the outcome of tympanoplasty?
Authors: El-Antably Adel , Ateya Khaled , Hamela Mo’men A. , Ibrahim Sameh , Hamdy Mona 
Published: July 2021

Abstract
Background
Eustachian tube function has been regarded as a significant factor in the successful outcome of tympanoplasty. Eustachian tube dysfunction has been attributed to many diseases of middle ear cleft ranging from otitis media with effusion to unsafe chronic otitis media. The aim of this study is to evaluate the effect of Eustachian tube function on outcome of tympanoplasty in safe chronic suppurative otitis media patients and detect the correlation between the type of the used graft and the outcome of tympanoplasty. This study included 60 randomly selected patients diagnosed with safe chronic suppurative otitis media. Eustachian tube function was tested with tympanometry and Toynbee’s test. All patients underwent tympanoplasty type I.

Results
Successful statistically significant outcome was observed in 83.3 % of patients with normal eustachian tube function, while in 60 % of patients with eustachian tube dysfunction (p < 0.05).

Conclusion
Eustachian tube function significantly affects the outcome of tympanoplasty surgery. No significant correlation was noted between the type of the used graft and the outcome of tympanoplasty.
Investigating the relationship between childhood sexual abuse, self-harm repetition and suicidal intent: mixed-methods study
Authors: Troya Maria Isabela , Cully Grace , Leahy Dorothy , Cassidy Eugene , Sadath Anvar , Nicholson Sarah , Ramos Costa Ana Paula , Alberdi-Páramo Íñigo , Jeffers Anne , Shiely Frances , Arensman Ella 
Published: July 2021

Background
Research into the association between childhood sexual abuse (CSA) and self-harm repetition is limited.

Aims
We aimed to examine the association between self-harm repetition, mental health conditions, suicidal intent and CSA experiences among people who frequently self-harm.

Method
A mixed-methods study was conducted including consecutive patients aged ≥18 years, with five or more self-harm presentations, in three Irish hospitals. Information was extracted from psychiatric records and patients were invited to participate in a semi-structured interview. Data was collected and analysed with a mixed-methods, convergent parallel design. In tandem, the association between CSA and self-harm repetition, suicidal intent and mental health conditions was examined with logistic regression models and independent sample t-test, with psychiatric records data. Thematic analysis was conducted with interview data, to explore CSA experiences and self-harm repetition.

Results
Between March 2016 and July 2019, information was obtained on 188 consecutive participants, with 36 participants completing an interview. CSA was recorded in 42% of the total sample and 72.2% of those interviewed. CSA was positively associated with self-harm repetition (odds ratio 6.26, 95% CI 3.94−9.94, P = 0.00). Three themes emerged when exploring participants’ CSA experiences: CSA as a precipitating factor for self-harm, secrecy of CSA accentuating shame, and loss experiences linked to CSA and self-harm.

Conclusions
CSA was frequently reported among people who frequently self-harm, and associated with self-harm repetition. Identification of patients at risk of repetition is key for suicide prevention. This is an at-risk group with particular characteristics that must be considered; comprehensive patient histories can help inform and tailor treatment pathways.
Inflammatory Bowel Disease: Its Effects on Physical Activity, Sports Participation, and Athletes
Authors: Cohen Daniel L. , Shirin Haim 
Published: July 2021

Abstract
This article discusses the “bidirectional” relationship between inflammatory bowel disease (IBD) and physical activity. Intestinal symptoms and extraintestinal manifestations of IBD negatively impact a patient's ability to participate in sports. IBD also impacts athletic performance via its effects on muscle mass, muscle function, bone density, and fatigue. Surveys of IBD patients consistently show that IBD interferes with athletic participation. While IBD negatively affects physical activity, there is growing evidence that physical activity can be beneficial for IBD patients. Prospective studies have revealed that structured physical activities may positively influence inflammatory markers, disease activity, muscle strength, bone density, fatigue, stress, anxiety, and quality of life. This suggests that physical activity may be a simple and safe adjuvant therapy for IBD patients. Future studies assessing the optimal activity regimen are warranted. Finally, a cohort of professional athletes with IBD are described for the first time — football players in the National Football League.
Analysis of left ventricular function, left ventricular outflow tract and aortic valve area using computed tomography: Influence of reconstruction parameters on measurement accuracy
Authors: Hell Michaela M , Steinmann Bettine , Scherkamp Tassilo , Arnold Martin B , Achenbach Stephan , Marwan Mohamed 
Published: July 2021

Objectives: Computed tomography (CT) allows reproducible assessment of left ventricular (LV) function, left ventricular outflow tract area (LVOTarea) and aortic valve area (AVA). We evaluated the influence of image reconstruction parameters on these measurements. Methods: We analyzed 45 contrast-enhanced, retrospectively ECG-gated CT datasets acquired on a third-generation dual source system. A standard filtered-back-projection data set (20 cardiac phases (5% steps, 0–95%), 0.6-mm-slice thickness, 512 × 512 matrix) and eight reconstructions with modified slice thickness (1–8 mm), number of cardiac phases (5, 10), matrix size (256×256) and an iterative reconstruction (IR) algorithm were obtained. LV parameters (ejection fraction (EF), stroke volume (SV), end-diastolic (EDV), end-systolic volumes (ESV)), LVOTarea and AVA were assessed. Results: Differences in LV parameters, LVOTarea and AVA, were only minimal between standard reconstructions and those with modified matrix size, IR algorithm and ≤2 mm slice thickness, while reconstructions with 8-mm slice thickness significantly overestimated SV (p < 0.001) and EDV (p = 0.016). AVA planimetry in reconstructions with ≥5 mm slice thickness was not feasible in 56% of patients. A decrease in the number of reconstructed phases (10 or 5) underestimated EF, SV, EDV, LVOTarea and AVA and overestimated ESV. Conclusions: Modifications of reconstruction parameters (except a slice thickness ≤2 mm) have only a marginal effect on LV, LVOTarea and AVA assessment. However, a reduced number of reconstructions per cardiac cycle may significantly influence measurements. Advances in knowledge: Substantial modifications in number of reconstructions per cardiac cycle significantly affect the assessment of LV function, LVOTarea and AVA also in modern CT scanners.
Assessment of bone marrow oedema-like lesions using MRI in patellofemoral knee osteoarthritis: comparison of different MRI pulse sequences
Authors: Noorveriandi Henry , Parkes Matthew J , Callaghan Michael J , Felson David T , O'Neill Terence W , Hodgson Richard 
Published: July 2021

Objective: To compare bone marrow oedema-like lesion (BML) volume in subjects with symptomatic patellofemoral (PF) knee osteoarthritis (OA) using four different MRI sequences and to determine reliability of BML volume assessment using these sequences and their correlation with pain. Methods: 76 males and females (mean age 55.8 years) with symptomatic patellofemoral knee OA had 1.5 T MRI scans. PD fat suppressed (FS), STIR, contrast-enhanced (CE) T1W FS, and 3D T1W fast field echo (FFE) sequences were obtained. All sequences were assessed by one reader, including repeat assessment of 15 knees using manual segmentation and the measurements were compared. We used random-effects panel linear regression to look for differences in the log-transformed BML volume (due to positive skew in the BML volume distribution) between sequences and to determine associations between BML volumes and knee pain. Results: 58 subjects had PF BMLs present on at least one sequence. Median BML volume measured using T1W FFE sequence was significantly smaller (224.7 mm3, interquartile range [IQR] 82.50–607.95) than the other three sequences. BML volume was greatest on the CE sequence (1129.8 mm3, IQR 467.28–3166.02). Compared to CE sequence, BML volumes were slightly lower when assessed using PDFS (proportional difference = 0.79; 95% confidence interval [CI] 0.62, 1.01) and STIR sequences (proportional difference = 0.85; 95% CI 0.67, 1.08). There were strong correlations between BML volume on PDFS, STIR, and CE T1W FS sequences (ρs = 0.98). Correlations were lower between these three sequences and T1W FFE (ρs = 0.80–0.81). Intraclass correlation coefficients were excellent for proton density fat-suppressed, short-tau inversion recovery, and CE T1W FS sequences (0.991–0.995), while the ICC for T1W FFE was good at 0.88. We found no significant association between BML volumes assessed using any of the sequences and knee pain. Conclusion: T1W FFE sequences were less reliable and measured considerably smaller BML volume compared to other sequences. BML volume was larger when assessed using the contrast enhanced T1W FS though not statistically significantly different from BMLs when assessed using PDFS and STIR sequences. Advances in knowledge: This is the first study to assess BMLs by four different MRI pulse sequences on the same data set, including different fluid sensitive sequences and gradient echo type sequence.
Pathological characteristics and risk stratification in patients with stage I endometrial cancer: utility of apparent diffusion coefficient histogram analysis
Authors: An Taein , Kim Chan Kyo 
Published: July 2021

Objectives:
Accurate pre-operative prediction of risk stratification using a non-invasive imaging tool is clinically important for planning optimal treatment strategies, particularly in early-stage endometrial cancer (EC). This study aimed to investigate the utility of apparent diffusion coefficient (ADC) histogram analysis in evaluating the pathological characteristics and risk stratification in patients with Stage I EC.

Methods:
Between October 2009 and December 2014, a total of 108 patients with surgically proven Stage I EC (endometrioid type = 91; non-endometrioid type = 17) excluding stage ≥II that underwent preoperative 3T-diffusion-weighted imaging without administration of contrast medium were enrolled in this retrospective study. Risk stratification was divided into four risk categories based on the ESMO-ESGO-ESTRO Guidelines: low, intermediate, high-intermediate, and high risk. The ADC histogram parameters (minimum, mean [ADCmean], 10th–90th percentile, and maximum [ADCmax]) of the tumor were generated using an in-house software. The ADC histogram parameters were compared between patients with endometrioid type and non-endometrioid type, between Stage IA and IB, between histological grades, and evaluated for differentiating non-high risk group from high risk group. Inter-reader agreement for tumor ADC measurements was also evaluated. Statistical analyses were performed using the Student’s t-test, Mann–Whitney U test, receiver operating characteristics (ROC) analysis, or intraclass correlation coefﬁcient (ICC).

Results:
In differentiating endometrioid type from non-endometrioid type EC, all ADC histogram parameters were statistically significant (p &lt; 0.05). In differentiating histological grades, 90th percentile ADC and ADCmax showed significantly higher values in tumor Grade III than in tumor Grade I-II (p &lt; 0.05). In differentiating superficial myometrial invasion from deep myometrial invasion, all ADC histogram parameters were statistically significant (p &lt; 0.05), except ADCmax. In differentiating non-high risk group from high risk group, ADCmean, 75th–90th percentile ADC, and ADCmax were statistically significant (p &lt; 0.05). For predicting the high risk group, the area under the ROC curve of ADCmax was 0.628 and the highest among other histogram parameters. All histogram parameters revealed moderate to good inter-reader reliability (ICC = 0.581‒0.769).

Conclusion:
The ADC histogram analysis as reproducible tool may be useful for evaluating the pathological characteristics and risk stratification in patients with early-stage EC.

Advances in knowledge:
ADC histogram analysis may be useful for evaluating risk stratification in early-stage endometrial cancer patients.