syedzayyan/paper_mill_benchmark huggingface dataset:
Direct visualization of the drug loading of single DNA origami nanostructures by AFM-IR nanospectroscopy.

The efficient loading of dna nanostructures with intercalating or groove-binding drugs is an important prerequisite for various applications in drug delivery.However, unambiguous verification and quantification of successful drug loading is often rather challenging.In this work, afm-ir nanospectroscopy is thus employed to directly visualize the loading of dna origami nanostructures with the photosensitizer methylene blue (mb).Single mb-loaded dna origami nanostructures can be clearly resolved in high-resolution infrared (ir) maps and the occurrence of mb-specific ir absorption correlates well with the topographic signals of the dna origami nanostructures.The intensity of the recorded mb absorption bands furthermore scales with the mb concentration used for mb loading.By comparing single- and multilayer dna origami nanostructures, it is also shown that the ir signal intensity of the loaded mb increases with the thickness of the dna origami nanostructures.This indicates that also dna double helices located in the core of bulky 3d dna origami nanostructures are accessible for mb loading.Afm-ir nanospectroscopy thus has the potential to become an invaluable tool for quantifying drug loading of dna origami nanostructures and optimizing drug loading protocols.

Journal: Nanoscale (2022)
Publication types: Journal Article
Catalytic hydrogenation of nitrate in water: improvement of the activity and selectivity to N2by using Rh(III)-hexamolybdate supported on ZrO2-Al2O3.

Catalysts prepared on zr o2, al2o3and zr o2-al2o3(zr al-10) supported with anderson heteropolyanion (rh mo6) as active phase were investigated for the elimination of no3-from water.Raman characterization of pure and supported rh mo6phase showed the presence of polymolybdic species of different degrees of complexity when rh mo6was supported.The temperature-programmed reduction study revealed the synergic effect between rh and mo species, through which the reducibility of mo was promoted by rh, and different phase/support interactions were verified.Among the supports, zr al-10 presented the highest acidity due to the presence of zr o2in the tetragonal modification and high specific surface area (due to al2o3), favouring rhodium-molybdenum active phase/support interaction and high dispersion.All catalysts prepared were active in removing no3-, the one prepared with the rh mo6phase on the zr al-10 support being the most active.These results point to the formation of an active surface with a high dispersion of rh and mo.The highest selectivity to n2(99.3) exhibited by the rh mo6/zr al-10 catalyst is proposed to be related to the high rh dispersion (0.755) and to the presence of lewis acid sites (oxygen vacancies) of the tetragonal zr o2modification that favour no3-adsorption through electrostatic interactions.

Journal: Environmental technology (2022)
Publication types: Journal Article
Infrared Spectroscopic Study and Mathematical Simulations of Carotid Atherosclerosis.

/aim the pathogenesis, treatment and prevention of atherosclerosis continue to be the subject of intensive research and study by the scientific community.Based on fourier-transform infrared spectra and 3d-doppler echogram, we attempted to develop a computational simulation model for predicting the association of atherosclerotic risk factors with pathogenic molecular structural changes.Materials and methods atheromatic carotid arteries from 56 patients (60-85 years old) were used as samples.Color 3d-doppler echogram screening was performed on all patients preoperatively.Each infrared spectrum consisted of 120 co-added spectra at a spectral resolution of 4 cm-1results: the infrared spectral analysis reveals 'marker bands', such as the 1,744 cm-1band assigned to aldehyde formation and to the 'fingerprint' digital spectral region of 1,050-1,169 cm-1, characteristic of the presence of advanced glycation end products (c-o-c).The accumulation of calcium phosphate salts increases the formation rate of stenosis.The critical point of stenosis risk starts at about 45%, while when stenosis is over 60-70%, the risk of ischemic stroke or other major adverse cardiovascular events increases dramatically.Conclusion fourier-transform infrared spectroscopy and mathematical simulation models showed that carotid artery stenosis over 45% reduces the blood flow rate, while stenosis over 65% dramatically increases the hemodynamic disturbance, with a parallel increase the rate of ischemic stroke or other major adverse cardiovascular events.

Journal: In vivo (Athens, Greece) (2022)
Publication types: Journal Article
Trapped ion mobility spectrometry-mass spectrometry improves the coverage and accuracy of four-dimensional untargeted lipidomics.

Lipids play vital roles in many physiological and pathological processes in living organisms.Due to the high structural diversity and the numerous isomers and isobars of lipids, high-coverage and high-accuracy lipidomic analysis of complex biological samples remain the bottleneck to investigate lipid metabolism.Here, we developed the trapped ion mobility spectrometry-mass spectrometry (tims-ms) based four-dimensional untargeted lipidomics to support accurate lipid identification and quantification in biological samples.We first demonstrated that the tims based multi-dimensional separation improved the differentiations of isomeric and isobaric lipids, and increased the purity of precursor ion isolation and the quality of ms/ms spectra.Hyphenation of tims and pasef technologies significantly improved the coverages of ms/ms spectra.These technological advantages jointly improved the coverage and accuracy of lipid identification in untargeted lipidomics.We further demonstrated that the ccs values of lipids acquired using tims were highly consistent with those from drift tube ion mobility spectrometry (dtims).Lipid identification and quantification results of nist human plasma samples were also verified with inter-laboratory reports.Finally, we applied the tims-ms based untargeted lipidomics to characterize the spatial distributions of 1393 distinctive lipids in the mouse brain, and demonstrated that diverse lipid distributions and compositions among brain regions contributed to different functions of brain regions.Altogether, tims-ms based four-dimensional untargeted lipidomics significantly improved the coverage and accuracy of untargeted metabolomics, thereby facilitating a system-level understanding of lipid metabolism in biological organisms.

Journal: Analytica chimica acta (2022)
Publication types: Journal Article
The association between obesity and chronic pain among community-dwelling older adults: a systematic review and meta-analysis.

S to systematically review studies and explore the association between obesity and chronic pain among community-dwelling older adults.Methods a comprehensive literature search was conducted in 9 databases and the pubmed search engine from their inception to march 19, 2020.Studies that investigated the associations between overweight/obesity and chronic pain among older people were obtained.Comprehensive meta-analysis was used to meta-analyze the eligible studies.Results totally 14 studies with 40,999 participants were included in this review, and 8 of these studies were meta-analyzed.The meta-analyses showed that both overweight (pooled or = 1.166, 95% ci: 1.104-1.232, p < 0.01) and obesity (pooled or = 1.786, 95% ci: 1.530-2.085, p < 0.01) had significant associations with chronic pain among older adults.Conclusions overweight and obesity are both associated with chronic pain among older adults.It is suggested that body weight control strategies might be incorporated into the pain management program for older adults with obesity.

Journal: Geriatric nursing (New York, N.Y.) (2021)
Publication types: Journal Article;Meta-Analysis;Systematic Review
An Analysis of the Willingness to the COVID-19 Vaccine Booster Shots among Urban Employees: Evidence from a Megacity H in Eastern China.

Many studies have shown that urban workers may have a higher acceptance rate of coronavirus disease (covid-19) vaccine uptake compared to their rural counterparts.As omicron spreads globally, the covid-19 booster vaccination has been acknowledged as the primary strategy against this variant.In this study, we identify factors related to the willingness of workers in megacities to take the vaccine booster shots and their main reasons accounting for their booster willingness.This research survey was conducted in megacity h in eastern china, and a total of 1227 employees from different industries were interviewed.The study at hand examines the relationship between various characteristics (including both economic and non-economic factors) of urban employees and their intention/desire to accept the covid-19 booster shoots.The survey results show that some characteristics, namely work organization, vaccine knowledge, and social network, affect their intention to take covid-19 vaccine booster shots.Urban employees with a strong work organization, a high degree of vaccine knowledge, and a dense social capital are more likely to receive booster injections than other employees.Therefore, work organization, vaccine knowledge, and social networks provide fundamental entry points for designing enhanced injection strategies to increase the acceptance of covid-19 vaccines among employees in megacities.

Journal: International journal of environmental research and public health (2022)
Publication types: Journal Article;Research Support, Non-U.S. Gov't
Near-infrared fluorescence imaging with indocyanine green for assessment of donor livers in a rat model of ischemia-reperfusion.

Although marginal donor livers expand the donor pool, an ideal method for quantitatively evaluating the quality of donor livers has not been developed.This study aimed to explore the feasibility of indocyanine green (icg) fluorescence imaging for estimating liver function in an ischemia-reperfusion model.Methods forty-eight rats were randomly and evenly divided into 8 groups: the control group and the experimental groups (i-vii).The portal vein blocking period was 0 min, 10 min, 20 min, 30 min, 40 min, 50 min and 60 min.After blood flow was reestablished and the hemodynamics stabilized, icg was injected through the dorsal penile vein as a bolus, and the fluorescence signal was recorded for 30 min in real time.The fluorescence intensity (fi) curve of the liver was fitted with an asymptotic regression model.Fresh liver tissues and serum were obtained from the middle lobe of the liver on postoperative day (pod) 1 and pod 7 for histopathological evaluation and liver function tests.Results the growth rate of the fi curve, parameter b3, decreased from groups i to vii.According to the two sudden changes in b3 (20 min, 50 min), the experimental groups could be classified into 3 groups (a, b and c).Hepatocytes in groups i-ii showed slight edema, group iii began to show obvious hepatocyte edema and vacuolar degeneration, and in groups vi-vii, severe hepatocyte degeneration, necrosis and large inflammatory cell infiltration were observed.Suzuki's scores in the 3 groups were also significantly different (p < 0.01).At the same time, the serum liver function in the experimental groups showed a significant increase on pod 1 and a decrease on pod 7.The alanine aminotransferase (alt), aspartate aminotransferase (ast), and total bilirubin (tb) levels of groups a, b, and c were significantly different on pod 1 (p < 0.05), and the alt and direct bilirubin (db) levels were significantly different on pod 7 (p < 0.05); the lactic dehydrogenase (ldh) level of the group c was significantly higher than that of the groups a and b on pod 1 and pod 7.Meanwhile, the 7-day survival rate of the rats in group c was poor compared to that of the rats in groups a and b (58.3% vs.100% vs.100%).Conclusion icg fluorescence imaging is effective for estimating the degree of liver damage and grading in an ischemia-reperfusion model.It probably has the potential for use in assessing the quality of the donor liver in liver transplantation.

Journal: BMC gastroenterology (2022)
Publication types: Journal Article
Design of balanced COX inhibitors based on anti-inflammatory and/or COX-2 inhibitory ascidian metabolites.

The aim of this study was to design and synthesize cox-1/cox-2 balanced inhibitors incorporating the structural motifs of anti-inflammatory ascidian metabolites.We designed a series of substituted indole analogs that incorporate the key structures of the ascidian metabolites, herdmanines c and d.The synthesized analogs were tested for their inhibitory activity against cox-1 and cox-2, and compound 5m, which displayed balanced inhibition, was further evaluated for in vitro anti-inflammatory activity.Compound 5m suppressed the expression of pro-inflammatory factors, including i nos, cox-2, tnf-α, and il-6 in lps-stimulated murine raw264.7 macrophages.The reduction of pge2, no, and ros was also observed, together with the suppression of nf-κb, ikk, and iκbα phosphorylation.Our results characterized 5m as a cox-1/cox-2 balanced inhibitor that subsequently caused ros inhibition and nf-κb suppression, and culminated in the suppression of i nos, cox-2, tnf-α, and il-6 expression.

Journal: European journal of medicinal chemistry (2019)
Publication types: Journal Article
Nicardipine for treating severe antepartum hypertension during pregnancy: Nine years of experience in more than 800 women.

Introduction women with severe hypertension during pregnancy require prompt stabilization with a combination of magnesium sulfate and rapidly acting intravenously administered antihypertensives.It remains unknown which antihypertensive is best suited for pregnancy.The present study evaluated the intravenous use of the calcium antagonist, nicardipine.Material and methods this multicenter, retrospective case series included all pregnant women beyond 20 weeks of gestation with severe antepartum hypertension that were treated with intravenous nicardipine.Primary outcome measures successful treatment, time to successful treatment, and maternal safety.Severe hypertension was defined as systolic blood pressure (sbp) of 160 mm hg or more and/or diastolic blood pressure (dbp) of 110 mm hg or more.Results this study included 830 women.After 1 h of treatment, two-thirds of the women had sbp below 160 mm hg and dbp below 100 mm hg.In three out of four women, the mean arterial pressure was below 120 mm hg.Within 2 h of treatment, 77.4% of women achieved successful treatment.In all cases, nicardipine was eventually effective.Within the first 2 h, 42.7% of women experienced temporary low dbp (ie below 70 mm hg) without clinical consequences for the mother or fetus.In all cases, the low dbp resolved after discontinuing or reducing the dosage of nicardipine.One case of fetal distress was attributable to maternal hypotension, and a cesarean section was performed at more than 2 h after initiating therapy.During treatment, headache, nausea, and vomiting decreased significantly.Conclusions to date, this was the largest case-series study on the use of nicardipine for treating severe antepartum hypertension in pregnancy.We found that nicardipine could effectively and safely treat this condition.Based on its high success rate and acceptable safety profile, nicardipine should be considered a first-line treatment in women with severe hypertension in pregnancy.

Journal: Acta obstetricia et gynecologica Scandinavica (2022)
Publication types: Journal Article;Multicenter Study
Applying high-throughput sequencing to identify and evaluate foetal chromosomal deletion and duplication.

The present study aimed to estimate the clinical performance of non-invasive prenatal testing (nipt) based on high-throughput sequencing method for the detection of foetal chromosomal deletions and duplications.A total of 6348 pregnant women receiving nipt using high-throughput sequencing method were included in our study.They all conceived naturally, without twins, triplets or multiple births.Individuals showing abnormalities in nipt received invasive ultrasound-guided amniocentesis for chromosomal karyotype and microarray analysis at 18-24 weeks of pregnancy.Detection results of foetal chromosomal deletions and duplications were compared between high-throughput sequencing method and chromosomal karyotype and microarray analysis.Thirty-eight individuals were identified to show 51 chromosomal deletions/duplications via high-throughput sequencing method.In subsequent chromosomal karyotype and microarray analysis, 34 subchromosomal deletions/duplications were identified in 26 pregnant women.The observed deletions and duplications ranged from 1.05 to 17.98 mb.Detection accuracy for these deletions and duplications was 66.7%.Twenty-one deletions and duplications were found to be correlated with the known abnormalities.Nipt based on high-throughput sequencing technique is able to identify foetal chromosomal deletions and duplications, but its sensitivity and specificity were not explored.Further progress should be made to reduce false-positive results.

Journal: Journal of cellular and molecular medicine (2020)
Publication types: Journal Article
Poor Antibody Response to BioNTech/Pfizer Coronavirus Disease 2019 Vaccination in Severe Acute Respiratory Syndrome Coronavirus 2-Naive Residents of Nursing Homes.

Residents of nursing homes (nhs) are at high risk of coronavirus disease 2019 (covid-19)-related disease and death and may respond poorly to vaccination because of old age and frequent comorbid conditions.Methods seventy-eight residents and 106 staff members, naive to infection or previously infected with severe acute respiratory syndrome coronavirus (sars-co v-2), were recruited in nhs in belgium before immunization with 2 doses of 30 μg bnt162b2 messenger rna (m rna) vaccine at days 0 and 21.Binding antibodies (abs) to sars-co v-2 receptor-binding domain (rbd), spike domains s1 and s2, rbd ab avidity, and neutralizing abs against sars-co v-2 wild type and b.1.351 were assessed at days 0, 21, 28, and 49.Results sars-co v-2-naive residents had lower ab responses to bnt162b2 m rna vaccination than naive staff.These poor responses involved lower levels of immunoglobulin (ig) g to all spike domains, lower avidity of rbd ig g, and lower levels of abs neutralizing the vaccine strain.No naive residents had detectable neutralizing abs to the b.1.351 variant.In contrast, sars-co v-2-infected residents had high responses to m rna vaccination, with ab levels comparable to those in infected staff.Cluster analysis revealed that poor vaccine responders included not only naive residents but also naive staff, emphasizing the heterogeneity of responses to m rna vaccination in the general population.Conclusions the poor ab responses to m rna vaccination observed in infection-naive nh residents and in some naive staff members suggest suboptimal protection against breakthrough infection, especially with variants of concern.These data support the administration of a third dose of m rna vaccine to further improve protection of nh residents against covid-19.

Journal: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America (2022)
Publication types: Journal Article;Research Support, Non-U.S. Gov't
Detection of SARS-CoV-2 RNA in the Pleural Swab of a COVID-19 Patient with a Pneumothorax.

Coronavirus disease 2019 (covid-19) is a viral disease caused by severe acute respiratory syndrome coronavirus 2 (sars-co v-2).While evaluating nasopharyngeal swabs by real-time reverse transcriptase-polymerase chain reaction (r rt-pcr) is diagnostic, thorax computed tomography (ct) findings are also guiding in diagnosis.The association of pneumothorax and pleural effusion is not common in coronavirus disease.We presented the nucleic acid detection by a pleural swab sample in a covid-19 patient with ground-glass opacity appearance and spontaneous pneumothorax.

Journal: The Indian journal of surgery (2022)
Publication types: Case Reports;Journal Article
Maternal-Fetal Infections (Cytomegalovirus,Toxoplasma, Syphilis): Short-Term and Long-Term Neurodevelopmental Outcomes in Children Infected and Uninfected at Birth.

(1) background: infections in pregnancy can lead to miscarriage, premature birth, infections in newborns, and developmental disabilities in babies.Infected infants, symptomatic at birth, can have long-term sequelae, and asymptomatic babies are also at increased risk of developing long-term sensorineural outcomes.Targeted therapy of the pregnant mother can reduce fetal and neonatal harm.(2) aim of the study: to explore the association between symptoms and time of onset of long-term sequelae in infected children born from mothers who contracted an infection during pregnancy, by a long-term multidisciplinary follow-up.(3) methods: for up to 2−4 years, we evaluated cognitive, motor, audiological, visual, and language outcomes in infants with symptomatic and asymptomatic congenital infections and in uninfected infants.(4) results: 186 infants born from women who acquired cytomegalovirus infection (n = 103), toxoplasma infection (n = 50), and syphilis (n = 33) during pregnancy were observed.Among them, 119 infants acquired the infection in utero.Infected infants, symptomatic at birth, obtained lower scores on the cognitive and motor scale on bayley-iii compared to asymptomatic and uninfected infants (p = 0.026; p = 0.049).Many severe or moderate sequelae rose up within the first year of life.At 24 months, we observed sequelae in 24.6% (14/57) of infected children classified as asymptomatic at birth, compared to 68.6% (24/35) of symptomatic ones (χ2 = 15.56; p < 0.001); (5) conclusions: infected babies symptomatic at birth have a worse prognosis than asymptomatic ones.Long-term sequelae may occur in infected children asymptomatic at birth after the first year of life.Multidisciplinary follow-up until 4−6 years of age should be performed in all infected children, regardless of the presence of symptoms at birth.

Journal: Pathogens (Basel, Switzerland) (2022)
Publication types: Journal Article
Potential effects of shift work on skin autoimmune diseases.

Shift work is associated with systemic chronic inflammation, impaired host and tumor defense and dysregulated immune responses to harmless antigens such as allergens or auto-antigens.Thus, shift workers are at higher risk to develop a systemic autoimmune disease and circadian disruption with sleep impairment seem to be the key underlying mechanisms.Presumably, disturbances of the sleep-wake cycle also drive skin-specific autoimmune diseases, but epidemiological and experimental evidence so far is scarce.This review summarizes the effects of shift work, circadian misalignment, poor sleep, and the effect of potential hormonal mediators such as stress mediators or melatonin on skin barrier functions and on innate and adaptive skin immunity.Human studies as well as animal models were considered.We will also address advantages and potential pitfalls in animal models of shift work, and possible confounders that could drive skin autoimmune diseases in shift workers such as adverse lifestyle habits and psychosocial influences.Finally, we will outline feasible countermeasures that may reduce the risk of systemic and skin autoimmunity in shift workers, as well as treatment options and highlight outstanding questions that should be addressed in future studies.

Journal: Frontiers in immunology (2022)
Publication types: Journal Article;Research Support, Non-U.S. Gov't;Review