bluuebunny/crossref_metadata_2025_split huggingface dataset:
Does Local Vancomycin Powder Impregnated with Autogenous Bone Graft and Bone Substitute Decrease the Risk of Deep Surgical Site Infection in Degenerative Lumbar Spine Fusion Surgery? - an Ambispective Study
Authors: Wang Shih-Tien , Chou Po-Hsin , Yao Yu-Cheng , Lin Hsin-Hsian , Liu Chien-Lin , Chang Ming-Chau 
Published: December 2021

Abstract
Background:Deep surgical site infection (DSSI) is one of the most challenging complications in lumbar fusion surgery. Few investigations examined the effect of vancomycin powder mixed with ABG and bone substitutes on preventing DSSI in degenerative lumbar fusion surgeries as well as any interference with bony fusion. The aim of the study was to investigate the effects of autogenous bone graft (ABG) along with bone substitutes as a local vancomycin delivery system on preventing DSSI in lumbar instrumented fusion and compared with those who did not use vancomycin powder.Methods: From January, 2015 through December, 2015, a one-year prospective study using vancomycin powder mixed with ABG and bone substitute for degenerative lumbar fusion surgeries as vancomycin (V) group, 1 gm vancomycin for 2 and 3-level, and 2 gm for more than 3-level instrumentation. From December, 2013 through December 2014, patients received degenerative lumbar fusion surgeries without using vancomycin before the vancomycin protocol were retrospectively enrolled as non-vancomycin (NV) group. Vancomycin concentration was checked at post-operative days 1 and 3 for both the serum and drainage. Patients’ demographic data, microbiology reports, fusion status and functional outcomes were evaluated. Results:One hundred and ten patients were enrolled prospectively in the V group, and 86 for the NV group. After an average 41 months follow-up (range, 36-54), 3 patients (3.48%) developed postoperative DSSIs in the NV group, thereby requiring revision surgeries and parenteral antibiotics treatment versus no DSSIs (0%, 0/100) in the V group. (p=0.048). The postoperative serum vancomycin levels were undetectable and no vancomycin related side effects was encountered. The mean vancomycin concentration of drainage at postoperative days 1 and 3 were 517.96 ± 174.4 and 220.14 ± 102.3 mg/mL, respectively. At final follow-up, there was no statistical difference observed in terms of clinical and radiologic outcomes. Conclusions: Our vancomycin protocol may reduce the incidence of DSSI in degenerative lumbar fusion surgery without affecting bony fusion.
Factors Associated with Uptake of Contraceptives Among HIV Positive Women on Dolutegravir Based Anti-Retroviral Treatment - A Crossectional Survey in Urban Uganda.
Authors: Mbabazi Leah , Nabaggala Mariah Sarah , Kiwanuka Suzanne , Kiguli Juliet , Laker Eva , Kiconco Arthur , Okoboi Stephen , Lamorde Mohammed , Castelnuovo Barbara 
Published: December 2021

Abstract
Background

In May 2018, following the preliminary results of a study in Botswana that reported congenital anomalies in babies born to HIV-positive women taking dolutegravir drug, the WHO issued a teratogenicity alert. However, there are scarce data on the impact of this guidance on contraceptive uptake among women taking dolutegravir. We assessed the uptake of contraceptives in HIV-positive women of reproductive age on dolutegravir regimens.
Methods

We conducted a cross-sectional survey from April 2019 to July 2019 in five government health facilities in central Uganda, where dolutegravir-based regimens were offered as the preferred first-line antiretroviral treatment. We randomly selected 359 non-pregnant women aged 15-49 years taking dolutegravir-based regimens and interviewed them using semi-structured interviewer-administered questionnaires. We collected data on demographics, contraceptive use, individual, social, and health system factors. We described patients’ characteristics using descriptive statistics and assessed factors associated with contraceptive uptake using a modified Poisson regression model.
Results

A total of 359 women were included in the study. The mean age was 37 years (standard deviation=6.8) and overall contraceptive uptake was 38.4%. The most utilized method was injectable method at 58.4% followed by condoms (15%), intrauterine device (10.7%), pills (6.4%), implants (5.4%), and sterilization (0.7%) Predictors for contraceptive uptake were parity of 3-4 children (Adjusted Prevalence Ratio (APR) =1.48, 95% confidence interval (CI): 1.14, 1.92). There was reduced uptake in the age range of 40-49 years (APR=0.45, CI: 0.21-0.94), unemployed (APR: 0.6, CI: 0.42- 0.94), women not discussing family planning with their partner (APR=0.39, CI: 0.29-0.52) and not receiving family planning counseling (APR= 0.56, CI: 0.34-0.92).
Conclusion

We observed a low-level uptake of contraceptives, with injectables as the most used method. Family planning counseling and partner discussion on family planning were associated with contraceptive uptake among the women who used dolutegravir based regimens. There is a need for more strategies to integrate FP services and increase male involvement in HIV care programs.
Breastfeeding Duration and Its Effective Factors in Mothers with Children Aged 30-36 Months in Kerman in 2020
Authors: Mirafzali Sedighe , Sari Ali Akari , alizadeh somayeh 
Published: December 2021

Abstract
Introduction: Complete cessation of breastfeeding (CCB) at the right time is as important as starting breastfeeding, as well as identifying the factors that affect the duration of breastfeeding, so that breastfeeding promotion programs focus on these causes, to increase mothers' ability and desire to breastfeed. This study aimed to determine the time of CCB and its related factors.Methods: This study was a descriptive-analytical and cross-sectional type. A total of 802 urban and rural mothers with children aged from 30 to 36 months completed the questionnaire. The validity and reliability of the questionnaire were confirmed by Cronbach's alpha of 85%. Data were analyzed using SPSS software version 16.Results: The mean time of breastfeeding was 19.23±7.09 and the median was 22-month-year. About 41% of children were breastfed until 24-month-year. There was a significant relationship between the time of cessation of breastfeeding with contraception, number of households, place of residence, and weight at 6-month-year at the level of 0.05.Conclusion: Duration of breastfeeding is influenced by some demographic and cultural factors. The timing of the CCB differs from the suggestions of the World Health Organization (WHO) and religious teachings. Useful interventions are needed to increase the duration of breastfeeding.
Lysine-Functionalized Layered Double Hydroxides For The Antibiotics’ Efficient Removal: Controllable Fabrication Via BBD Model And Removing Mechanism
Authors: Hu Yuying , Liu Susu , Qiu Min , Zheng Xiaohuan , Peng Xiaoming , Dai Hongling , Hu Fengping , Xu Li , Xu GaoPing 
Published: December 2021

Abstract
Ly @ FeZn layered double hydroxides (LDHs) controllable fabrication based on Box-Behnken Design (BBD) model was fabricated, and presented stable and efficient removal performance for Ciprofloxacin (CIP), Norfloxacin (NOR) and Ofloxacin (OFL) removal. It should be noted that Ly @ FeZn had different adsorption behavior towards CIP, NOR and OFL. Furthermore, the Ly @ FeZn was characterized by SEM, XRD, FT-IR and XPS. Results revealed the optimized fabrication condition (temperature of 60 °C, Fe / Zn molar ratio of 0.5 and the lysine dosage of 5.8 mmol) for the removing efficient. The highest adsorption capacity of CIP, NOR and OFL were 193.83, 190.20 and 62.12 mg/g, respectively. Adsorption kinetics of both CIP and NOR were well simulated with the pseudo-first-order kinetic model, while that of OFL was well-described by the pseudo-second-order. Moreover, the adsorption thermodynamics of CIP and NOR on Ly @ FeZn indicated that the adsorption processes were exothermal, feasible and spontaneous. It was worth noting that the adsorption mechanism of Ly @ FeZn for CIP and NOR were the synergistic reaction of electrostatic attraction, chemical bonding and flocculation. On the other side, the adsorption behavior of OFL was relatively low, and the adsorption mechanism was only electrostatic attraction.
Incidence and Prognostic Nomogram for Resected Non-small Cell Neuroendocrine Tumor: A Population-Based Respective Study in China and the SEER Database
Authors: Pang Zhaofei , Liu Yong , Zhao Xiaogang , Ma Guoyuan , Zhao Qidi , Du Jiajun 
Published: December 2021

Abstract
Background: Pulmonary neuroendocrine tumors, including small cell lung cancer (SCLC) and non-small cell neuroendocrine tumor (NSCLC-NET), have obvious heterogeneity. The comparison between SCLC and NSCLC-NET, and prognostic nomogram of resected NSCLC-NET have not been performed.Methods: We retrieved patients’ information with pulmonary neuroendocrine tumors from SEER database. Age-adjusted incidence and prognostic impacts of histological subtypes, surgery strategies and smoking were compared between SCLC and NSCLC-NET. Independent prognostic factors, screened by Cox regression, were enrolled for prognostic nomogram of resected NSCLC-NET. The nomogram were evaluated and compared to the 8th AJCC TNM staging system. A Chinese cohort was used for external validation.Results: Age-adjusted incidence of SCLC declined after 1991 but the incidence of NSCLC-NET continuously rose. Patients with typical carcinoid had the best prognosis in both overall survival and lung cancer specific survival after operation. Sleeve and segmental resection were more recommended in NSCLC-NET and SCLC, respectively. High-smoking index was associated with worse prognosis in both SCLC and NSCLC-NET. Histological subtype, age, surgery type, N, M stage and chemotherapy were independent prognostic factors and used to construct prognostic nomogram of resected NSCLC-NET. The nomogram performed well with good discrimination, calibration and clinical usefulness, which was validated by Chinese cohort (1, 3, 5-year AUC: SEER cohort 0.873, 0.901, 0.875; Chinese cohort 0.867, 0.892, 0.874). Compared to 8th staging system, the nomogram had higher C-index (0.87 vs 0.728, P < 0.001), clinical usefulness, increasing AUC value over time and improved 68%. The online server can be accessed at https://nsclc-net-prognostic-prediction.shinyapps.io/DynNomapp/. Conclusion: NSCLC-NET had increasing incidence over the past decades. The nomogram had high discrimination, calibration and clinical usefulness and performed better than 8th staging system. It may have certain value in risk stratification and survival prediction of patients with resected NSCLC-NET and help clinicians to take measures for high-risk patients in advance.
Coastal Hypoxia Drives Microbial Diversity: Elucidation through 16S rRNA Amplicon Sequencing
Authors: Naik Vruti V , Damare Samir R , Shah Shruti S , Shenoy Damodar M , Mulla Amara Begum 
Published: December 2021

Abstract
The formation of oxygen-depleted zones in the bottom waters is one of the most widespread phenomena in coastal areas. Upwelling episodes occurring along the west coast of India due to the southwest monsoon lead to an increase in biological productivity which further lowers the dissolved oxygen in the upwelled waters, which intensifies annually between June and October. Here, we have determined the changes in the microbial community in response to the varying oxygen levels and other physicochemical parameters at the Candolim Time Series Station using high-throughput sequencing. Amplicon Sequence Variants across all the samples collected in different seasons were mostly affiliated to the phyla Proteobacteria, Actinobacteria, Bacteroidetes, Verrucomicrobia, Chloroflexi, Firmicutes and Planctomycetes, with the most dominant being Proteobacteria (21-41%). Statistical analysis revealed that microbial diversity differed significantly with changing DO, ammonia, nitrate and nitrite concentrations during different seasons. The microbial community shift due to seasonal hypoxia results in the differential biogeochemical cycling of essential nutrients with certain years seeing redox conditions up to sulphate reduction, while certain years seeing only nitrogen loss. Future scenario of global warming will serve as a big challenge for understanding the role of microbial diversity and its implications in the cycling of natural elements.
Beta-adrenergic Receptor Blockade Effects on Cardio-pulmonary Exercise Testing
Authors: Forton Kevin , Lamotte Michel , Gillet Alexis , Chaumont Martin , Philippe Van De Borne , Faoro Vitalie 
Published: December 2021

Abstract
Background: Beta-blockers are increasingly prescribed while the effects of beta-adrenergic receptor blockade on cardio-pulmonary exercise test (CPET) derived parameters remain under-studied. Methods: 21 young healthy adults repeated 3 CPET at an interval of 7 days at the same time of the day. The tests were performed 3 hours after a random, double blind, cross-over single dose intake of placebo, 2.5 mg bisoprolol or 5 mg bisoprolol. Gaz exchange, heart rate and blood pressure were measured at rest and during cyclo-ergometric CPET.Results: Maximal workload and VO2max were unaffected by the treatment, with maximal respiratory exchange ratio > 1.15 in all tests. A beta-blocker dose-dependent effect reduced resting and maximal blood pressure and heart rate and the chronotropic response to exercise, evaluated by the heart rate/VO2 slope (placebo: 2,9 ± 0,4 beat/ml/kg; 2,5 mg bisoprolol: 2,4 ± 0,5 beat/ml/kg; 5 mg bisoprolol: 2,3 ± 0,4 beat/ml/kg, p<0.001). Ventilation efficiency measured by the VE/VCO2 slope and the ventilatory equivalent for CO2 at the ventilatory threshold were not affected by beta1-receptor blockade. Post-exercise chronotropic recovery measured after 1 min was enhanced under beta1-blocker (placebo: 26 ± 7 bpm; 2,5 mg bisoprolol: 32 ± 6 bpm; 5 mg bisoprolol: 33 ± 6 bpm, p<0.01).Conclusion: The present results suggest that a single dose of bisoprolol does not affect metabolism, respiratory response and exercise capacity. However, beta-adrenergic blockade dose-dependently reduced exercise hemodynamic response by lowering the pressure and chronotropic responses.
Transcriptomic Analysis of Methyl Jasmonate Treatment Reveals Gene Networks Involved in Drought Tolerance at the Early Developmental Stage in Pearl Millet (Pennisetum Glaucum L. Br)
Authors: Ndiaye Adama , Diallo Amadou Oury , Fall Ndèye Coura , Diouf Rose Diambogne , Diouf Diaga , Kane Ndjido Ardo 
Published: December 2021

Abstract
Water deficit stress at the early stage of development is one of the main factors limiting pearl millet production. A practice to cope with would be to apply hormones to stimulate plant growth and development. Exogenous methyl jasmonate (MeJA) can improve drought tolerance by modulating key pathways, therefore, we assumed that can occur in pearl millet during the early stage of development. To decipher the molecular mechanisms controlling these pathways, RNAseq was conducted in two pearl millet genotypes, drought-sensitive SosatC88 and drought-tolerant Souna3, in response to 200 µM of MeJA. Transcriptomic analysis between the MeJA-treated and non-treated plants revealed 3270 differentially expressed genes (DEGs) in SosatC88 and 127 DEGs in Souna3. Gene ontology (GO) classification assigned most regulated DEGs in SosatC88 to heme binding, oxidation-reduction process, response to oxidative stress and membrane, and in Souna3 to terpene synthase activity, lyase activity, magnesium ion binding, and thylakoid. The Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis reveals that DEGs in SosatC88 are related to the oxidation-reduction process, the biosynthesis of other secondary metabolites, the signal transduction, and the metabolism of terpenoids, while in Souna3, DEGs are related to the metabolism of terpenoids and the energy metabolism. Two genes encoding a diterpenoid biosynthesis-related and a Glutathione S transferase T3 were contra-regulated between SosatC88 and Souna3. Additionally, five random genes differentially expressed by RNAseq were validated using qPCR. These insights into the molecular mechanisms of pearl millet genotype tolerance at the early stage of development contribute to the understanding of the role of hormones in adaptation to drought-prone environments.
In Vivo Imaging With Two-Photon Microscope For Assessing Tumor Selective Binding Of Anti-CD137 Switch Antibody
Authors: Kaneko Chisato , Tsutsui Haruka , Ozeki Kazuhisa , Honda Masaki , Haraya Kenta , Narita Yoshinori , Kamata-Sakurai Mika , Kikuta Junichi , Tabo Mitsuyasu , Ishii Masaru 
Published: December 2021

Abstract
STA551, a novel anti-CD137 switch antibody, binds to CD137 in an extracellular ATP (exATP) concentration dependent manner. Although STA551 was assumed to show higher target binding in tumor than normal tissues, quantitative detection of the target binding of switch antibody in vivo is technically challenging. In this study, we investigated the target binding of STA551 in vivo using intravital imaging with two-photon microscopy. Tumor-bearing human CD137 knock-in mice were intravenously administered 1 mg/kg of fluorescent-labeled antibodies at day 0 and 3. Flow cytometry analysis of antibody-binding cells and intravital imaging using two-photon microscopy was conducted at day4. Higher CD137 expression in tumor than spleen was detected by flow cytometry analysis, and T cells and NK cells were major CD137 expressing cells. In the intravital imaging experiment, conventional and switch anti-CD137 antibody showed binding in tumor. However, in spleen, the fluorescence of switch antibody was much weaker than conventional anti-CD137 antibody and comparable with isotype control. In conclusion, we could assess switch antibody biodistribution in vivo through intravital imaging with two-photon microscopy. These results suggested that the tumor selective binding of STA551 leads to a wide therapeutic window and potent antitumor efficacy without systemic immune activation.
A Review into the Acute Emergency Response of Operational Partnerships During the Rohingya Refugee Crisis in Cox’s Bazar
Authors: Blackmore Claire , Evers Egmond Samir , Sazed S M Asif , Baidjoe Amrish , Vilas Victor Del Rio , Pesigan Art , Ofrin Roderico 
Published: December 2021

Abstract
Background: The unprecedented influx of Rohingya refugees into Cox’s Bazar, Bangladesh, in 2017 led to a humanitarian emergency requiring large numbers of humanitarian workers to be deployed to the region. The World Health Organization (WHO) contributed to this effort through several well-established deployment mechanisms: the Global Outbreak Alert and Response Network (GOARN) and the Standby Partnerships (SBP). The aim of the study was to capture the views and experiences of those humanitarian workers deployed by WHO through operational partnerships between December 2017 and February 2019.Methods: A mixed methods design was used. A desktop review was conducted to describe the demographics of the humanitarian workers deployed to Cox’s Bazar and the work that was undertaken. Interviews were conducted with a subset of the respondents to elicit their views relating to their roles and contributions to the humanitarian response, challenges during their deployment and how the process could be improved. Thematic analysis was used to identify key themes.Results: We identified sixty-five deployments during the study period. Respondents’ previous experience ranged between 3 and 28 years (mean 9.7 years). The duration of deployment ranged from 8 to 278 days (mean 67 days) and there was a higher representation of workers from Western Pacific and European regions. Forty-one interviews were conducted with people who experienced all aspects of the deployment process. Key themes elicited from interviews related to staffing, the deployment process, the office environment and capacity building. Various issues raised have since been addressed, including the establishment of a sub-office structure, introduction of online training prior to deployment, and a staff wellbeing committee. Conclusions: This study identified successes and areas for improvement for deployments during emergencies. The themes and subthemes elicited can be used to inform policy and practice changes, as well as the development of performance indicators. Common findings between this study and previous literature indicate the pivotal role of staff deployments through partnership agreements during health emergency response operations and a need for continuous improvements of processes to ensure maximum effectiveness.
Evaluation of virtual assessment
Authors: Joyce Pauline , Cassidy Dara , Kenna Laura 
Published: December 2021

Abstract
BackgroundThe study emerged from the necessity to reschedule an in-person long case examination to an online platform for Physician Associate students’ final clinical examination. The group had already experienced a delay in taking this clinical examination due to missing clinical hours, during Covid-19 restrictions. The aim of this study was to evaluate the experiences of students and examiners for a high stakes’ clinical examination online. Research suggests that the long case is the only clinical examination that promotes holistic assessment. However, a disconnect between the patient’s presence and the student in the virtual environment was a key finding in this study. Methods This was an evaluation research study, using the Context, Input, Process, Product (CIPP) model, which provided a framework to establish the effectiveness and/or success of an online format for a high stakes’ clinical examination. All students and examiners were invited to take part in virtual interviews. ResultsResults suggest that both students (n=5) and examiners (n=7) agree that, while the stress of a face-to-face examination was lessened for the student, this was balanced by a new stressor of potential internet problems. All agreed that a virtual setting for a high stakes assessment is not transferable, with both groups citing the lack of opportunities to ‘read the patient’ and ‘showcase their physical exam skills’ as challenging. Conclusions Our study suggests that, in the context of balancing the risks of the pandemic with graduating healthcare professionals, the online format was a success. The benefits cited included the preparation of students for real life situations in a clinical setting, with a healthcare system now more reliant on virtual consultations, and the capacity to offer increased opportunities for formative assessment of consultation and clinical reasoning skills. However, recommendations suggest that the long case could be planned so that student and patient are in the same setting to perform a ten-minute physical exam, confirming the finding that questions on ‘how to’ examine a patient are no substitute for ‘doing’.