bluuebunny/crossref_metadata_2025_split huggingface dataset:
Neurotransmitter and tryptophan metabolite concentration changes in the Complete Freund’s adjuvant model of orofacial pain
Authors: Cseh Edina K , Veres Gábor , Körtési Tamás , Polyák Helga , Nánási Nikolett , Tajti János , Párdutz Árpád , Klivényi Péter , Vécsei László , Zádori Dénes 
Published: January 2020

Abstract
BackgroundThe neurochemical background of the evolution of headache disorders, including migraine, still remains partially undiscovered. Accordingly, our aim was to further explore the neurochemical profile of Complete Freund’s adjuvant (CFA)-induced orofacial pain, involving finding the shift point regarding small molecule neurotransmitter concentrations changes vs. that of the previously characterized migraine-related neuropeptides. The investigated neurotransmitters consisted of glutamate, γ-aminobutyric acid, noradrenalin and serotonin. Furthermore, in light of its influence on glutamatergic neurotransmission, we measured the level of kynurenic acid (KYNA) and its precursors in the kynurenine (KYN) pathway (KP) of tryptophan metabolism. Methods The effect of CFA was evaluated in male Sprague Dawley rats. Animals were injected with CFA (1 mg/ml, 50 µl/animal) into the right whisker pad. We applied high-performance liquid chromatography to determine the concentrations of the above-mentioned compounds from the trigeminal nucleus caudalis (TNC) and somatosensory cortex (ssCX) of rats. Furthermore, we measured some of these metabolites from the cerebrospinal fluid and plasma as well. Afterwards, we carried out permutation t-tests as post hoc analysis for pairwise comparison. Results Our results demonstrated that 24 h after CFA treatment, the level of glutamate, KYNA and that of its precursor, KYN was still elevated in the TNC, all diminishing by 48 h. In the ssCX, significant concentration increases of KYNA and serotonin were found. Conclusion Based on our previous findings, the elevation of KYNA may attenuate glutamate-mediated pain processing which may serve as a novel therapeutic target in headache disorders as well. Furthermore, the current findings draw attention to the limited time interval where medications can target the glutamatergic pathways because there is a clear transition to peptide mediated pain processing even from 24 h after CFA application.
Gut Microbial Dysbiosis in Individuals with Sjögren’s Syndrome
Authors: Mendez Roberto , Watane Arjun , Farhangi Monika , Cavuoto Kara M. , Leith Tom , Budree Shrish , Galor Anat , Banerjee Santanu 
Published: January 2020

Abstract
Background: Autoimmune diseases have been associated with changes in the gut microbiome. In this study, the gut microbiome was evaluated in individuals with dry eye and bacterial compositions were correlated to dry eye (DE) measures. We prospectively included 13 individuals with who met full criteria for Sjögren’s (SDE) and 8 individuals with features of Sjögren’s but who did not meet full criteria (NDE) for a total of 21 cases as compared to 21 healthy controls. Stool was analyzed by 16S pyrosequencing, and associations between bacterial classes and DE symptoms and signs were examined. Results: Results showed that Firmicutes was the dominant phylum in the gut, comprising 40-60% of all phyla. On a phyla level, subjects with DE (SDE and NDE) had depletion of Firmicutes (1.1-fold) and an expansion of Proteobacteria (3.0-fold), Actinobacteria (1.7-fold), and Bacteroidetes (1.3-fold) compared to controls. Shannon’s diversity index showed no differences between groups with respect to the numbers of different operational taxonomic units (OTUs) encountered (diversity) and the instances these unique OTUs were sampled (evenness). On the other hand, Faith’s phylogenetic diversity showed increased diversity in cases vs controls, which reached significance when comparing SDE and controls (13.57 ± 0.89 and 10.96 ± 0.76, p=0.02). Using Principle Co-ordinate Analysis, qualitative differences in microbial composition were noted with differential clustering of cases and controls. Dimensionality reduction and clustering of complex microbial data further showed differences between the three groups, with regard to microbial composition, association and clustering. Finally, differences in certain classes of bacteria were associated with DE symptoms and signs. Conclusions: In conclusion, individuals with DE had gut microbiome alterations as compared to healthy controls. Certain classes of bacteria were associated with DE measures. These findings set the foundation for gut microbiome modulation as a potential therapeutic approach for DE.
Survival and regeneration ability of clonal common milkweed (Asclepias syriaca L.) after a single herbicide treatment in natural open sand grasslands
Authors: Bakacsy László , Bagi István 
Published: January 2020

Abstract
Background: Invasive species are a major threat to biodiversity, human health, and economies worldwide. The cost of the damages and the fight against them exceeds 9.6–12.7 billion euros annually for European Union. The Pannonic open sand grasslands represent important endemic habitats in European Union and are threatened by the spread of several invasive plant species. Among them, the common milkweed Asclepias syriaca L. has already transformed large areas of natural vegetation and endangered the others. The need for management of alien plants is urgent in both agricultural and protected areas. Herbicide treatment may be a cost-effective method for controlling the extended stand of milkweed even in protected areas. Therefore, this study monitored the herbicide treatment effects on A. syriaca before, during, and after treatment in a strictly protected UNESCO biosphere reserve near Fülöpháza from 2011 to 2017. The entire stand was treated with glyphosate in May 2014. We used simple data processing methods to follow the fate of individual shoots. Results: The 7-year data showed that treatment was successful for a short term (the year of treatment and the following year). The number of A. syriaca shoots in the stand decreased following herbicide treatment, with 73% of the shoots dying. In the first year after treatment, the number of shoots decreased continuously as herbicides were translocated by rhizomatic roots, thereby damaging dormant bud banks. Conclusions: The surviving buds adjusted to the number of emerging shoots in the years after treatment, and growth of the milkweed stand appeared to show a slow regeneration for a longer-term period. We concluded that the successful control of A. syriaca after herbicide treatment depends on continuous management (e.g., further point spraying) of treated areas to suppress possible regrowth during subsequent seasons. Therefore, periodic control is highly recommended because one-time treatment is insufficient.
Incidence, risk factors and outcomes of early postoperative hyperglycemia in surgical patients: a protocol for a systematic review and meta-analysis
Authors: Ssentongo Paddy , Lewcun Joseph A. , Ssentongo Anna E. , Soybel David I. 
Published: January 2020

Abstract
Background Early postoperative hyperglycemia is common and associated with poor postoperative outcomes. We aimed to estimate the pooled incidence, risk factors and clinical outcomes of early postoperative hyperglycemia in men and women globally. Method and analysis We will conduct a systematic review and meta-analysis of cohort studies published before January 1, 2020, reporting the incidence of postoperative hyperglycemia. We will search the following databases: PubMed (MEDLINE), Scopus, EMBASE, Cochrane Library, OVID (HEALTH STAR), OVID (MEDLINE), Joana Briggs Institute EBF Database and Web of Science. No age, geographical location, study-design or language limits will be applied. This protocol was developed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols guidelines. Two reviewers (JAL, AES) will independently screen citations, abstracts and will identify full-text articles for inclusion, extract data and evaluate the quality and bias of included studies. Discrepancies will be resolved by consensus or consultation with a third researcher (PS). The risk of bias of included studies will be evaluated by the appropriate Cochrane risk of bias tool. The primary outcome will be the overall incident rate of postoperative hyperglycemia. Secondary outcomes are the risk factors and clinical outcomes of postoperative hyperglycemia. We will use the random-effects model with a logit transformation of proportions for the pooling of studies. We will assess the between-study heterogeneity using the I 2 statistic, and Cochrane’s Q statistic (significance level < 0.05). We will perform subgroup meta-analyses to look at geographical differences in the incidence of postoperative hyperglycemia and conduct a meta-regression analysis, using study level median age, year of publication, study level gender proportions, the proportion of type 2 diabetes, mean body mass index, American Society of Anesthesiologists and type of surgical procedure. We will report the probability of postoperative hyperglycemia as a measure of incidence rate, relative risk ratios (RR) and 95% confidence intervals to report the effects of the risk factors and postoperative outcomes. The Egger’s test and funnel plots will be used to assess publication bias.
Metabolic and evolutionary engineering of diploid yeast for the production of first-and second-generation ethanol
Authors: Sun Yang , Xue Qian , Hou Junyan , Kong Meilin , Li Xiaowei , He Boyang , Jin Mingjie , Lei Zhipeng , Shi Shuobo , Cao Limin 
Published: January 2020

Abstract
Background: Saccharomyces cerevisiae has been widely used in the fermentation of plant-derived sugars to produce ethanol, called first-generation (1G) bioethanol, but made an impact on global food markets. Significant efforts have been therefore to employ non-food lignocellulosic feedstocks for bioethanol production, known as second-generation (2G) bioethanol. However, S. cerevisiae cannot naturally utilize xylose, a major component in lignocellulosic hydrolysates, and it has low tolerance to common carboxylic acid inhibitors present in lignocellulosic hydrolyzates. Metabolic engineering and evolutionary engineering have shown great power in strain improvement, which were also adopted here to solve these limiting factors in developing 2G bioethanol.Results: An efficient expression of a six-gene cluster, including XYL1/XYL2/XKS1/TAL1/PYK1/MGT05196, was achieved in the evolved S. cerevisiae diploid strain A21Z, showing the ability to use mixed glucose and xylose. The engineered strain A21Z expressing the six-gene cluster displayed a high xylose consumption after 96 h, reaching 90.7% of the theoretical yield in ethanol production. To investigate its industrial characteristics, A31Z was obtained by direct evolution of A21Z under the treatment of industrial hydrolysate from wheat straw. Under different fermentation conditions with 1G and 2G feedstock candidates, A31Z showed a markedly improved xylose fermentation performance. A31Z could produce more ethanol and less glycerol compared to the control Angel from corn starch during 120 h, with a final ethanol production at 122.32 g/L. The ability to produce higher ethanol production was also found under the fermentation using carbon source from hydrolysis of Dried Distillers Grains with Solubles (DDGS) or whole corn.Conclusions: Here, we report an effective strategy to improve xylose fermentation with an evolutionary engineering in the industrial S. cerevisiae diploid strain A31Z. This study demonstrated that a constructed A31Z has the higher xylose consumption and efficient ethanol production in mixed glucose and xylose with acetate. A31Z also gave a good ethanol production in 1G and 2G industrial feedstocks, indicating its significant contribution in the transition stage from the 1st generation to the 2nd generation bioethanol.
Chlamydiales and hemotropic mycoplasma in captive and free-living bats
Authors: Fritschi Janine , Marti Hanna , Seth-Smith Helena M.B. , Aeby Sébastien , Greub Gilbert , Meli Marina L. , Hofmann-Lehmann Regina , Mühldorfer Kristin , Stokar-Regenscheit Nadine , Wiederkehr Danja , Pilo Paola , Broek Peggy Van Den , Borel Nicole 
Published: January 2020

Abstract
Background: Bats are hosts for a variety of microorganisms, however, little is known about the presence of Chlamydiales and hemotropic mycoplasma. This study investigated 475 free-living and captive bats from Switzerland, Germany and Costa Rica for the occurrence of Chlamydiales and hemotropic mycoplasma.Results: Screening for Chlamydiales was performed using a Chlamydiaceae-specific real-time PCR targeting the 23S rRNA gene and a pan-Chlamydiales PCR targeting the 16S rRNA gene resulting in a total prevalence of 31.4%. For sequencing, a PCR with the specifically designed inner primers panFseq and panRseq was performed, and criteria published by Pillonel et al. were used to classify the 19 obtained sequences, resulting in the formation of two groups. Groups one and two shared sequence identities to Chlamydiaceae and to Chlamydia-like organisms, including Rhabdochlamydiaceae and unclassified Chlamydiales from environmental samples, respectively.Analysis for the presence of hemotropic mycoplasma was performed using a universal SYBR Green hemoplasma screening real-time PCR targeting the 16S rRNA gene, real-time PCRs specific for M. haemofelis-like and 'Candidatus M. haemominutum'-like organisms and two conventional PCRs targeting an 871-bp and 1030-bp region of the 16S rRNA gene resulting in a total prevalence of 0.7%. Sequencing and phylogenetic analysis of the 871-bp and 1030-bp region of the 16S rRNA gene were used to classify positive specimens and infer their phylogenetic relationships. Three sequences with identities to other unidentified mycoplasma found in vampire bats and Chilean bats were obtained.Conclusions: Bats can harbor Chlamydiales and hemotropic mycoplasma and the newly described sequences in this study indicate that the diversity of these bacteria in bats is much larger than thought before. Both, Chlamydiales and hemotropic mycoplasmas are not restricted to certain bat species or countries and free-living as well as captive bats can be colonized. In conclusion, bats represent another potential host or vector for novel, previously unidentified, Chlamydiales and hemotropic mycoplasma.
Fertility desires of people living with HIV: Does the implementation of a sexual and reproductive health and HIV integration model change healthcare providers’ attitudes and clients’ desires?
Authors: Milford Cecilia , Beksinska Mags , Greener Ross , Pienaar Jacqueline , Greener Letitia Rambally , Mabude Zonke , Smit Jennifer 
Published: January 2020

Abstract
Background

There is a need for information and healthcare support for fertility desires and contraceptive needs of people living with HIV (PLHIV), and to provide safer conception support for sero-discordant couples wanting to conceive. A model to integrate sexual and reproductive health and HIV services was developed and implemented in a district hospital and six clinics in eThekwini District, South Africa.

Methods

To evaluate the model’s success, a cross-sectional survey was conducted before and after implementation. As part of this evaluation, fertility desires of PLHIV (both male and female), and providers’ perspectives thereof were explored. Changes in desires and attitudes after integration of services were investigated.

Results

Forty-six healthcare providers and 269 clients (48 male, 221 female) were surveyed at baseline, and 44 providers and 300 clients (70 male, 230 female) at endline. Various factors including relationship status, parity and ART access influenced PLHIVs’ desires for children. Concerns for their own and their child’s health impacted on PLHIV’s fertility desires. These concerns declined after integration of services. Similarly, providers’ concerns about PLHIV having children decreased after the implementation of the model.

Conclusions

Integrated services are important to facilitate provision of information on contraceptive options as well as safer conception information for PLHIV who want to have children.
Prevalence and factors associated with erectile dysfunction among adult men in Moshi municipal, Tanzania: community-based study
Authors: NYALILE KENAN BOSCO , Mushi Emmanuel HP , Moshi Epiphania , Leyaro Beatrice J. , Msuya Sia E , Mbwambo Orgeness 
Published: January 2020

Abstract
Background: Erectile dysfunction (ED) has a negative impact on ones’ relationships with poor quality of life as inevitable result. Men’s sexual health has been forgotten in most developing countries and therefore the burden of ED and associated risk factors are not known in these settings. This study aimed to determine the prevalence and factors associated with erectile dysfunction among adult men in Moshi municipality, northern Tanzania. Methodology: A community based cross-sectional study was conducted in July 2019. Multi stage sampling technique was used to enroll men aged 18 years and above infour wards of Moshi municipality. The 5-item version of the International Index of Erectile Function (IIEF-5) scale was used to assess erectile dysfunction. Multivariate logistic regression was done to get factors associated with ED. Results: The mean age of the 381 men was 39.6 (SD ±16.8) years. Theoverall prevalence of ED on this study was 29.7%. The severity of ED among study participants was 13.4 % (51), 9.7 % (37), 3.7 % (14), 2.9% (11) participants had mild, mild to moderate, moderate and severe erectile dysfunction respectively. Age, tobacco use, overweight, hypertension and diabetes all showed significance association with ED. However, in multivariate logistic analysis only age ≥40 years and hypertension remain statistically significant associated with ED [(OR 5.2, 95% CI 2.68-10.21, P<0.001), (OR 11.5, 95% CI 5.8-22.76, P<0.001) and (OR 2.5, 95% CI 1.06-5.86, P=0.035) ] respectively. Conclusion: About one in three men in Moshi municipal had ED. High prevalence of ED among hypertensive individuals suggest a need to establish ED screening program during their routine clinic for early detection and treatment. Furthermore, education should be given on lifestyle modification to prevent hypertension and diabetes in the community. The outcome will be improvement of patient’s quality of life. Key words: Erectile dysfunction, Diabetes mellitus, Hypertension, Physical activities, Prevalence, Predictors, Tanzania
Development and validation of a questionnaire to assess incidence and reactions of second victims in German speaking countries (SeViD)
Authors: Strametz Reinhard , Abloescher Miriam , Huf Wolfgang , Ettl Brigitte , Raspe Matthias 
Published: January 2020

Abstract
Background Second victims, defined as health care team members being traumatized by an unanticipated clinical event or outcome, are supposed to be a common phenomenon in health care. Surveys in the US health care system indicate high incidence rates among physicians between 10 and 44%. However, no systematic assessment of second victims in health care in German speaking countries has been published yet and no validated German questionnaire for assessing incidence of and impact on second victims exists. Therefore, we initiated the SeViD (Second Victims im Deutschsprachigen Raum/second victims in German speaking countries) project and developed a German questionnaire for the assessment of second victim incidents. Methods Based on an intensive literature review of available questionnaires in English we defined a preliminary version of our questionnaire consisting of 4 domains and 14 items. This version was subject to cognitive pretesting using paraphrasing, probing and think aloud methods in order to ensure content validity. Retest reliability of second victim symptoms was assessed three weeks after the initial pretest. Results Fifteen health care professionals (physicians, nurses, therapeutic and diagnostic professions and administrative staff) of hospitals in Germany (n=6) and Austria (n=9) with or without previous second victim experience participated as volunteers for all pretests after informed consent. Seven items in three domains were slightly modified based on cognitive pretests. Retest reliability for second victim symptoms was rho = 0.76. Mean duration of completion for this questionnaire took 9:01 (±3:05) minutes in case of a previous second victim experience and otherwise 4:19 (±0:59) minutes and was regarded acceptable by all volunteers. No volunteer regarded any question to be inappropriate. Conclusion We successfully developed a validated questionnaire assessing the impact of the second victim phenomenon in inpatient health care facilities. This questionnaire will be used in different settings for health care professionals and for stand-alone baseline assessment as well as pre/post-survey along with complex educational interventions to reduce negative impacts of the second victim phenomenon.
The association between rheumatoid arthritis and periodontal disease in a population-based cross-sectional case-control study
Authors: Renvert Stefan , Berglund Johan Sanmartin , Persson Rutger Gösta , Söderlin Maria K. 
Published: January 2020

Abstract
Objectives The association between rheumatoid arthritis (RA) and periodontitis remains unclear. We studied oral health and periodontitis in a population-based case-control study of individuals with ≥ 10 remaining teeth ≥61 years of age and either with, or without a diagnosis of RA. Methods 126 dentate individuals with RA were recruited together with age-matched control individuals without RA. The control individuals were recruited from the general population from the same city (n=249). A dental examination including a panoramic radiograph was performed on all participants. All individuals with RA were examined and medical records were reviewed by a rheumatologist. In the control group, none of the participants presented with symptoms of RA and their medical records were also negative. Results The RA group included more women (66.7% vs. 55.8%) (p<0.01). Individuals in the RA group had a higher body mass index (BMI) (p<0.001). A diagnosis of periodontitis was more common in the RA group (61.1%) than in the control group (33.7%) (p=0.001). Binary logistic regression analysis identified that a BMI > 25 (OR 6.2, 95% CI 3.6, 10.5, p= 0.000), periodontitis (OR 2.5 95% CI 1.5, 4.2 p=0.000), and female gender (OR 2.3, 95% CI 1.3-4.0, p=0.003) were associated with RA. Conclusion RA was associated with higher BMI, female gender, and more common diagnosis of periodontitis.