bluuebunny/crossref_metadata_2025 huggingface dataset:
Improved outcomes and reduced medical costs through multidisciplinary co-management protocol for geriatric proximal femur fractures: a one-year retrospective study
Authors: Li Yang , Tung Kuan-Kai , Cho Yi-Cheng , Lin Shih-Yi , Lee Cheng-Hung , Chen Chih-Hui
Published: April 2022

Background

To manage the rapidly growing incidence of, and related medical burden resulting from hip fractures in older adults in an aging society, studies involving orthogeriatric co-management treatment models have reported improved outcomes, including reduced medical costs. The treatment gap for osteoporosis was however seldom emphasized in the published treatment protocols. Aiming to improve the existing orthogeriatric protocol, we have established a patient-centered protocol for elderly patient hip fractures, which simultaneously focuses on fracture care and anti-osteoporosis agent prescription in regarding to healthcare quality and medical expense.

Methods

This was a retrospective study comparing patients who enrolled in the multidisciplinary co-managed protocol for geriatric hip fractures and those who did not. The inclusion criteria for this study were: (a) single-sided hip fractures treated from 1 to 2018 to 30 June 2020, (b) patients who were 60-years or older (c) trauma treated within 3 days from time of injury, and (d) minimal follow-up period of 12 months after surgery.

Results

From 1 to 2018 to 30 June 2020, 578 patients were included (267 patients in the protocol group vs. 331 patients in the conventional group). The protocol group was associated with significantly reduced lengths of hospital stay (p = 0.041), medical expenditures (p = 0.006), and mortality (p = 0.029) during their acute in-hospital admission period. Early osteoporosis diagnosis and anti-osteoporosis agent prescription were achieved in the protocol group, with a significantly wider coverage for BMD assessment (p < 0.001) and prescriptions for anti-osteoporosis medication (p < 0.001). Yet, there was no significant decline in the one-year refracture rate in the protocol group.

Conclusions

The implementation of a multidisciplinary co-managed care protocol for geriatric proximal femur fractures successfully improved patient outcomes with significantly reduced lengths of stay, medical expenditures, and mortality during the acute in-hospital admission period. The high prescription rate of anti-osteoporosis medication after hip fractures in the protocol group was not associated with a significantly lower re-fracture rate in the 12-month follow-up. However, the association between early anti-osteoporosis agent prescription and reduced long-term medical expenses in this group of patients has provided a direction for future research.
Molecular characterisation of second-line drug resistance among drug resistant tuberculosis patients tested in Uganda: a two and a half-year’s review
Authors: Mujuni Dennis , Kasemire Dianah Linda , Ibanda Ivan , Kabugo Joel , Nsawotebba Andrew , Phelan Jody E. , Majwala Robert Kaos , Tugumisirize Didas , Nyombi Abdunoor , Orena Beatrice , Turyahabwe Irene , Byabajungu Henry , Nadunga Diana , Musisi Kenneth , Joloba Moses Lutakoome , Ssengooba Willy
Published: April 2022

Background

Second-line drug resistance (SLD) among tuberculosis (TB) patients is a serious emerging challenge towards global control of the disease. We characterized SLD-resistance conferring-mutations among TB patients with rifampicin and/or isoniazid (RIF and/or INH) drug-resistance tested at the Uganda National TB Reference Laboratory (NTRL) between June 2017 and December 2019.

Methods

This was a descriptive cross-sectional secondary data analysis of 20,508 M. tuberculosis isolates of new and previously treated patients’ resistant to RIF and/or INH. DNA strips with valid results to characterise the SLD resistance using the commercial Line Probe Assay Genotype MTBDRsl Version 2.0 Assay (Hain Life Science, Nehren, Germany) were reviewed. Data were analysed with STATAv15 using cross-tabulation for frequency and proportions of known resistance-conferring mutations to injectable agents (IA) and fluoroquinolones (FQ).

Results

Among the eligible participants, 12,993/20,508 (63.4%) were male and median (IQR) age 32 (24–43). A total of 576/20,508 (2.8%) of the M. tuberculosis isolates from participants had resistance to RIF and/or INH. These included; 102/576 (17.7%) single drug-resistant and 474/576 (82.3%) multidrug-resistant (MDR) strains. Only 102 patients had test results for FQ of whom 70/102 (68.6%) and 01/102 (0.98%) had resistance-conferring mutations in the gyrA locus and gyrB locus respectively. Among patients with FQ resistance, gyrAD94G 42.6% (30.0–55.9) and gyrA A90V 41.1% (28.6–54.3) mutations were most observed. Only one mutation, E540D was detected in the gyrB locus. A total of 26 patients had resistance-conferring mutations to IA in whom, 20/26 77.0% (56.4–91.0) had A1401G mutation in the rrs gene locus.

Conclusions

Our study reveals a high proportion of mutations known to confer high-level fluoroquinolone drug-resistance among patients with rifampicin and/or isoniazid drug resistance. Utilizing routinely generated laboratory data from existing molecular diagnostic methods may aid real-time surveillance of emerging tuberculosis drug-resistance in resource-limited settings.
Pulse pressure is associated with cognitive performance in Japanese non-demented population: a cross-sectional study
Authors: Mizuhara Ryo , Mitaki Shingo , Takamura Masahiro , Abe Satoshi , Onoda Keiichi , Yamaguchi Shuhei , Nagai Atsushi
Published: April 2022

Background

Growing evidence suggests that vascular risk factors, especially hypertension, relate not only to cardiovascular disease but also to cognitive impairment. However, the impact of pulse pressure on cognitive function remains controversial. In this study, we evaluated the associations between pulse pressure and cognitive function in a Japanese health examination cohort using propensity matching analysis.

Methods

We examined 2,546 individuals with a mean age of 60.8 ± 10.3 years who voluntarily participated in health examination. Clinical variables included pulse pressure, and brain magnetic resonance imaging (MRI). We divided the participants into the high and low pulse pressure groups with a pre-defined cut-off value of 65 mmHg and evaluated their physical examination data, cognitive functions including Okabe’s test, Kohs’ test, and silent brain lesions using propensity matching. To clarify whether pulse pressure and blood pressure have different implications for cognitive function, a mediating analysis was also conducted.

Results

From the 2,546 subjects, 439 (17.2%) were in the high PP group. The propensity matching algorithm produced 433 pairs of patients with similar propensities. Higher pulse pressure corresponded to lower Okabe and Kohs’ scores (44.3 ± 7.1 vs 42.7 ± 7.5; p = 0.002, 97.9 ± 18.0 vs 95.0 ± 18.1 p = 0.019, respectively). The relationship between pulse pressure and cognitive impairment was not significantly mediated by systolic blood pressure. We observed no significant associations between silent brain lesions and pulse pressure.

Conclusion

High pulse pressure was associated with lower cognitive performance without systolic blood pressure mediation in Japanese subjects without dementia.
Increased expression of OLFM4 and lysozyme during necrotizing enterocolitis in neonates: an observational research study
Authors: Diez Sonja , Renner Marcus , Bahlinger Veronika , Hartmann Arndt , Besendörfer Manuel , Müller Hanna
Published: April 2022

Background

In neonatal patients with necrotizing enterocolitis (NEC) the inflammatory response is mediated by a plurality of different proteins. The proteins olfactomedin 4 (OLFM4) and lysozyme (LYZ) are part of the intestinal mucosal defense and especially OLFM4 has rarely been evaluated in neonatal gastrointestinal diseases. The aim of this study was to analyze whether expression levels of both proteins of innate immunity, OLFM4 and lysozyme, were increased during NEC in neonates.

Methods

Intestinal tissues of patients with NEC were examined with immunohistochemical staining of formalin-fixed and paraffin-embedded sections of resected tissue using antibodies against OLFM4 and lysozyme. Staining-positive tissues were semi-quantitatively scored from 0 (no staining), 1 (weak staining), 2 (moderate staining) to 3 (highly intense staining) by two individual investigators. Intestinal tissue of infants with volvulus was used as a control as other intestinal tissue without major inflammation was not available.

Results

Both applied antibodies against OLFM4 showed different staining patterns with higher staining intensity of the antibody OLFM4 (D1E4M). OLFM4 (median score of the antibody OLFM4 (D1E4M): 3.0) and lysozyme (median score: 3.0) are highly expressed in intestinal and immune cells during NEC. Expression of OLFM4 and lysozyme in the control samples with volvulus was observable but significantly lower (median score of the antibody OLFM4 (D1E4M): 1.25; median score of the antibody against LYZ: 2.0; p = 0.033 and p = 0.037, respectively).

Conclusions

Both proteins, OLFM4 and lysozyme, may play a role in the pathogenesis of NEC in neonatal patients, but the exact mechanisms of OLFM4 and lysozyme function and their role in immunological responses have not yet been resolved in detail. These observations add new insights as basis for further large-scale population research.
Effects of behaviour change communication on hypertension and diabetes related knowledge, attitude and practices in Imo and Kaduna States: a quasi-experimental study
Authors: Akuiyibo Selema , Anyanti Jennifer , Amoo Babatunde , Aizobu Dennis , Idogho Omokhudu
Published: April 2022

Background

Behaviour change communication is a proven health communication strategy among used in promoting changes in knowledge, attitudes, beliefs, and behaviours’, especially for communicable diseases. Few studies have been conducted on its effectiveness for non-communicable diseases prevention and control. This study was conducted as an evaluation assessment for a non-communicable disease focused intervention implemented in Imo and Kaduna States, Nigeria.

Methods

A twelve-month long strategic behaviour change communication intervention on hypertension and diabetes was implemented in selected communities across Imo and Kaduna States, Nigeria. This study adopted a quasi-experimental design approach among adult residents aged at least 35 years to assess the effectiveness of the intervention. Data was collected at baseline (prior to implementation of the interventions) and at the endline; among study and control groups. A uniform study tool was used to collect information on awareness & lifestyle related factors for Hypertension & Diabetes.

Results

The awareness of hypertension was 98.9% among the respondents in the study group compared to 94.4% among the baseline respondents (χ2 = 20.276, p < 0.001). The history of blood pressure check was recorded among 86.8% of the study group compared to 79.0% of the baseline group (χ2 = 20.27, p < 0.001). In the last 6 months prior to the study, 71.9% of the study group compared to 30.6% of the baseline group (χ2 = 243.34, p = 0.002) had blood glucose check at least once. Daily alcohol consumers make up 36.8% of the baseline respondents, compared to 22.6% in the study group (χ2 = 33.84, p < 0.001) and 30.6% of those in the control group compared to the 22.6% of the study group (χ2 = 9.23, p = 0.002). The mean (± SD) knowledge score on hypertension and diabetes was 18.12 (± 8.36) among the study group compared to 11.84 (± 6.90) among the baseline group (t = 15.29, p < 0.001), and compared to 10.97 (± 8.79) among the control group (t = 13.08, p < 0.001).

Conclusion

Significant changes in lifestyle practices, knowledge of hypertension and diabetes and risk perception was observed following the implementation of community-based behaviour change communication interventions. There is a need to increased access to health education and promotion interventions for non-communicable diseases.
Relationship between tobacco use, alcohol consumption and non-communicable diseases among women in India: evidence from National Family Health Survey-2015-16
Authors: Mishra Vivek K. , Srivastava Shobhit , Muhammad T. , Murthy P. V.
Published: April 2022

Background

Based on an increased prevalence of diabetes, asthma and hypertension among women in reproductive age, understanding the risk factors of non-communicable diseases (NCDs) is crucial to inform policy and program interventions to address the problem. In this study, we empirically assessed the associations of behavioural factors such as alcohol consumption and tobacco use and a variety of socioeconomic characteristics with prevalence of NCDs in adult women.

Methods

The data were derived from the National Family Health Survey conducted in 2015–16. The effective sample size for the present paper was 699,686 women aged 15–49 years in India. Descriptive statistics along with bivariate analysis were conducted to find the preliminary results. Additionally, multivariable logistic regression analysis was conducted to find the relationship between NCDs and behavioural factors such as alcohol consumption and tobacco use. Moreover, population attributable risk was estimated in the present study.

Results

It was revealed that 15.9% of women had any of the NCDs. A proportion of 0.8% of women smoked tobacco whereas 5.5% of women consumed smokeless tobacco. Also, a proportion of 1.2% of women consumed alcohol in the current study. The odds of having NCDs among women who smoked tobacco, consumed smokeless tobacco and consume alcohol were 16, 8 and 20% significantly higher than the odds of having NCDs among women who did not smoke tobacco, consume smokeless tobacco and consume alcohol respectively. The population attributable risk of having NCDs was 1.8% (p < 0.001) for women who smoked, 0.8% (p < 0.001) for women who consumed smokeless tobacco and 2.2% (p < 0.001) for women who consumed alcohol. Besides, the odds of having NCDs among overweight and obese women were 2.25 and 3.60 times greater than the odds of having NCDs among women who were underweight.

Conclusion

The findings revealed that smoking and using smokeless tobacco and alcohol consumption were risk factors of NCDs in women. The findings also alarm the focus of maternal and child health programs on NCDs’ risk factors like maternal obesity, due to their adverse health consequences on their children too. Also, the coexistence of higher levels of tobacco use and alcohol consumption requires different strategies to address the vulnerability of women towards NCDs, including screening and early detection of NCDs especially among those who smoke or chew tobacco and consume alcohol.
Notch1 activation of Jagged1 contributes to differentiation of mesenchymal stem cells into endothelial cells under cigarette smoke extract exposure
Authors: Cheng Yi , Gu Wen , Zhang Guorui , Guo Xuejun
Published: April 2022

Background

Mesenchymal stem cells (MSCs) have shown therapeutic potential for engraftment to, differentiation into, endothelial cells (ECs). However, low-efficiency yields hinder their use as ECs for therapeutic vascularization.

Methods

The Notch1 signaling pathway is key to optimal pulmonary development. Recent evidence has shown that this pathway participated in angiogenesis. Herein, we found that in MSCs, Jagged1 was a target for Notch 1, resulting in a positive feedback loop that propagated a wave of ECs differentiation.

Results

In vitro, Jagged1 was found to be activated by Notch1 in MSCs, resulting in the RBP-Jκ-dependent expression of Jagged1 mRNA, a response that was blocked by Notch1 inhibition. Notch1 promoted the formation of cord-like structures on Matrigel. However, cigarette smoke extract inhibited this process, compared to that in control groups. Moreover, Notch1-overexpressing cells upregulated the expressing of HIF-1α gene. The HIF-1α was an angiogenic factor that clustered with Notch1, underscoring the critical role of Notch1 pathway in vessel assembly. Interestingly, this was abrogated by incubation with Notch1 shRNA.

Conclusions

Notch signaling pathway promotes differentiation of MSCs in to ECs. It also regulates angiogenesis and transcription of specific markers on ECs. These results provide a mechanism that regulates differentiation of MSCs into ECs phenotypes.
Validity, reliability, and responsiveness of the Swedish version of Western Ontario Osteoarthritis of the Shoulder index
Authors: Hallberg Kristofer , Salomonsson Björn
Published: April 2022

Background

The Western Ontario of the Shoulder index (WOOS) is a patient-reported, disease-specific instrument, designed to measure quality of life in patients with osteoarthritis of the shoulder. The Swedish Shoulder Arthroplasty Registry (SSAR) uses WOOS and EuroQoL 5-dimensions 3 levels (EQ-5D-3L) as patient reported outcome measures. The purpose of this study was to test the validity, responsiveness, and reliability of the Swedish translation of WOOS for patients with osteoarthritis of the shoulder.

Methods

Data was collected from three shoulder arthroplasty studies performed during 2005–2013, with 23, 21, and 19 patients respectively. Forms were collected preoperatively, and postoperatively between 12 and 24 months. WOOS and EQ-5D-3L were used in all three studies. Additionally, the Oxford Shoulder Score (OSS) (n = 23) was used in one study, and the Constant-Murley score (CMS) (n = 40) in two of the studies. Validity was analysed by calculating Pearson’s correlation coefficient (PCC). Cronbach’s alpha (CA) was used to estimate internal consistency and reliability. The responsiveness of WOOS was measured by calculating effect size and standardized response mean. To assess the performance of WOOS over time, we present repeated measures of WOOS in the registry over a 10-year period.

Results

The validity analysis showed excellent correlations of WOOS to CMS, OSS and EQ-5D 3L, with Pearson’s correlation coefficient of 0.72, 0.83, and 0.62 respectively (P < 0.001). There were adequate floor effects in the sport and lifestyle domains preoperatively, and adequate ceiling effects in all domains postoperatively. There were no floor effects and adequate ceiling effects for total WOOS. Analyzing reliability, Cronbach’s alpha was 0.95 for the pre- and postoperative WOOS scores combined. The analysis of responsiveness for WOOS showed an effect size of 2.52 and a standardized response mean of 1.43.

The individual results measured by WOOS within the registry shows stable levels from 1 to 10 years.

Conclusion

The Swedish translation of WOOS is valid, reliable, and responsive for use in a clinical setting for patients with glenohumeral osteoarthritis treated with shoulder arthroplasty, and we regard it as an appropriate instrument for use in the Swedish Shoulder Arthroplasty Registry.
Making room for life and death at the same time – a qualitative study of health and social care professionals’ understanding and use of the concept of paediatric palliative care
Authors: Winger Anette , Früh Elena Albertini , Holmen Heidi , Kvarme Lisbeth Gravdal , Lee Anja , Lorentsen Vibeke Bruun , Misvær Nina , Riiser Kirsti , Steindal Simen A.
Published: April 2022

Background

The concept of pediatric palliative care (PPC) is applied differently within the healthcare system and among healthcare professionals (HCPs). To our knowledge, no studies have investigated how multidisciplinary HCPs understand the concept of PPC and the aim of this study was to explore the concept of PPC from the view of HCP in a paediatric setting.

Methods

We employed an explorative and descriptive design and conducted four focus groups with a total of 21 HCPs working in hospitals with children in palliative care. The data were analysed using qualitative content analysis.

Results

The data analysis of the concept of pediatric palliative care resulted in two themes. The first theme “A frightening concept that evokes negative emotions,” contains categories to explore the meaning, named “An unfamiliar and not meaningful concept, “A concept still associated with death and dying” and “Healthcare professionals’ responsibility for introducing and using the concept and, to obtain a common meaning.” The second theme was named “A broad and complementary concept,” containing the categories “Total care for the child and the family,” “Making room for life and death at the same time” and “The meaning of alleviation and palliative care.”

Conclusions

The included HCPs reflected differently around PPC but most of them highlighted quality of life, total care for the child and the child’s family and interdisciplinary collaboration as core elements. Attention to and knowledge among HCPs might change the perception about PPC from a frightening concept to one that is accepted by all parties, implemented in practice and used as intended. However, our study reveals that there is still some work to do before PPC is understood and accepted by all those involved.
A case study: a continuous improvement project of lecturing skills for clinical teachers in Chinese residency standardized training
Authors: Sun Xiaoliang , Ding Min , Luo Xi , Kang Baoli , Zhu Yaqin , Xu Zengguang , Chen Chi
Published: April 2022

Background

Aiming at the poor quality of small lectures due to the lack of lecturing skills of the clinical teachers in residency standardized training, the Teaching and Training Department of Shanghai East Hospital set up a continuous improvement project of lecturing skills for the clinical teachers to search for effective ways to improve lecture quality, then the effect was evaluated.

Methods

Based on the ADDIE model of training design, the department conducted the project in accordance with a process of analysis, design, development, implementation and evaluation. A special course “Clinical Teacher Presentation Training” (CTPT) was developed to convey and train the 5 key behaviors in presentation to improving lecture quality of the clinical teachers. Ninety-nine clinical teachers who give lectures to the residents were recruited as subjects for the project. Adopted the model of “intensive training + practice transference” to strengthen lecturing skills, and applied the Kirkpatrick Four Levels to evaluate the effect of the project from multi-role and multi-stage.

Results

The training satisfaction of the CTPT course from the subjects reaches 100%. The subjects have a high degree of knowledge acquisition through CTPT and the knowledge of the 5 key behaviors has been actually used in their lectures at the stage of practice transference. Comparing the data before training and after transference, it is found that the average increasing of the subjects’ 5 key behavior scores made by teaching secretaries is 14.12 points (14.12%) and that of the subjects’ self-efficacy scores is 9.31 points (9.31%); the performance values were modeling based on the scores from different types of evaluators and increased by an average of 12.61 points (12.61%); and the star ratings of the overall performance increased by an average of 1.17 points (23.4%). The results showed statistically difference (P < 0.001).

Conclusions

The project effectively promoted the improvement of the clinical teachers’ lecturing skills and the quality of small lectures.
The application of the acoustic shadowing facilitates guidance in radial artery puncture and cannulation teaching in standardized training for residents: a randomized controlled trial
Authors: Dong Rui , Chen Jingyan , Wang Hong , Liu Zhilin , Sun Xiaopeng , Guo Yuwei , Wang Mingshan , Sun Lixin , Gu Xiaoping
Published: April 2022

Background

Radial artery cannulation is a crucial investigative procedure for measuring patients’ blood pressure invasively and serial blood gases. However, radial artery cannulation can be challenging for medical residents, and it is necessary to establish a facile and straightforward teaching strategy. This study aimed to evaluate the efficiency of acoustic shadowing-facilitated ultrasound guidance on radial artery cannulation teaching for medical residents.

Methods

A total of 116 medical postgraduates who underwent standardized residency training programs in the Department of Anesthesiology were randomly divided into a new ultrasound-guided teaching group and a traditional ultrasound-guided teaching group. In the new ultrasound-guided teaching group, radial artery puncture technique was taught by acoustic shadowing-facilitated ultrasound guidance. The training included both theoretical and practical components. After the training, the success rate of the first puncture attempt, the success rate of the catheterization, the ultrasonic positioning time, and the catheterization time of the two groups were compared in a unified manner. A questionnaire on the subjective evaluation of the various aspects of the program by participants was conducted at the end of the training period.

Results

The study included 101 medical residents. The success rate for radial artery puncture at the first attempt in the new ultrasound-guided teaching group was 78.43%. It was significantly higher than that of the traditional ultrasound-guided group (58.00%, odds ratio = 0.380; 95% CI = 0.159 to 0.908; p = 0.027). The success rate for the first arterial catheterization in the new ultrasound-guided teaching group was significantly higher than that of the traditional ultrasound-guided group (74.51% vs. 52.00%, odds ratio = 0.371; 95% CI = 0.160 to 0.858; p = 0.019). The ultrasonic positioning time and catheterization time in minutes in the new ultrasound-guided teaching group were significantly shorter than that of the traditional ultrasound-guided group (14.36 ± 3.31 vs. 18.02 ± 4.95, p < 0.001; 10.43 ± 2.38 vs. 14.78 ± 8.02, p = 0.012). However, no significant differences were observed in the incidence of local hematomas and teaching satisfaction scores between the two groups.

Conclusion

Acoustic shadowing facilitates ultrasound-guided radial artery puncture and catheterization is beneficial in the standardized training and teaching of residents. It improves the success rate of the first attempt at radial artery puncture and catheterization and shortens the time of ultrasound location and catheterization.

Trial registration

Registered in the Chinese Clinical Trial Registry on 28 May 2021. Registration number: ChiCTR2100046833.
Nasal and tracheobronchial nitric oxide production and its influence on oxygenation in horses undergoing total intravenous anaesthesia
Authors: Wilkens Henriette L. , Neudeck Stephan , Kästner Sabine B. R.
Published: April 2022

Background

The present study aimed to investigate the effect of endotracheal intubation on nasal and tracheal endogenous NO concentrations, gas exchange and oxygenation in horses undergoing general anaesthesia. In many species a major part of physiological nitric oxide (NO) production takes place in the nasopharynx. Inhaled NO acts as a pulmonary vasodilator and regulates lung perfusion and endotracheal intubation bypasses the nasopharynx. Six horses were randomly assigned to either the “intubated” (INT) or the “non-intubated” (nINT) treatment group. Horses were premedicated with dexmedetomidine (5 μg/kg IV). Anaesthesia was induced with 2.5 mg/kg ketamine and 0.05 mg/kg diazepam IV, and it was maintained by administration of a triple-drip (100 mg/kg/h guaifenesin, 4 mg/kg/h ketamine, 7 μg/kg/h dexmedetomidine). The horses were spontaneously breathing room air. Heart rate, cardiac output, arterial blood pressure, pulmonary arterial blood pressures and respiratory rate were recorded during a 100-min anaesthesia period. Arterial, venous and mixed venous blood samples were taken every 10 minutes and analysed for partial pressure of oxygen (PO2) and carbon dioxide (PCO2), oxygen saturation and haemoglobin content. Standard oxygenation indices were calculated. Nasal and tracheal endogenous NO concentration was determined by chemiluminescence.

Results

Cardiovascular variables, respiratory rate, PO2, PCO2, oxygen saturation, haemoglobin content, CaO2, O2ER, P(a-ET)CO2and Qs/Qtdid not differ significantly between the two treatment groups. The P(A-a)O2was significantly higher in INT (6.1 ± 0.3 kPa) compared to nINT (4.9 ± 0.1 kPa) (p = 0.045), respectively. The nasal (8.0 ± 6.2 ppb) and tracheal (13.0 ± 6.3 ppb) endogenous NO concentration differed significantly in INT (p = 0.036), but not in nINT (nasal: 16.9 ± 9.0 ppb; tracheal: 18.5 ± 9.5 ppb) (p = 0.215).

Conclusion

Endotracheal intubation reduces the nasal and tracheal endogenous NO concentration. The influence on pulmonary gas exchange and oxygenation is negligible in horses breathing room air.
Distributions and trends of the global burden of COPD attributable to risk factors by SDI, age, and sex from 1990 to 2019: a systematic analysis of GBD 2019 data
Authors: Zou Jiahua , Sun Tao , Song Xiaohui , Liu Ye-Mao , Lei Fang , Chen Ming-Ming , Chen Ze , Zhang Peng , Ji Yan-Xiao , Zhang Xiao-Jing , She Zhi-Gang , Cai Jingjing , Luo Yunman , Wang Ping , Li Hongliang
Published: April 2022

Background

Global distributions and trends of the risk-attributable burdens of chronic obstructive pulmonary disease (COPD) have rarely been systematically explored. To guide the formulation of targeted and accurate strategies for the management of COPD, we analyzed COPD burdens attributable to known risk factors.

Methods

Using detailed COPD data from the Global Burden of Disease study 2019, we analyzed disability-adjusted life years (DALYs), years lived with disability (YLDs), years of life lost (YLLs), and deaths attributable to each risk factor from 1990 to 2019. Additionally, we calculated estimated annual percentage changes (EAPCs) during the study period. The population attributable fraction (PAF) and summary exposure value (SEV) of each risk factor are also presented.

Results

From 1990 to 2019, the age-standardized DALY and death rates of COPD attributable to smoking and household air pollution, occupational particles, secondhand smoke, and low temperature presented consistently declining trends in almost all socio-demographic index (SDI) regions. However, the decline in YLD was not as dramatic as that of the death rate. In contrast, the COPD burden attributable to ambient particulate matter, ozone, and high temperature exposure showed undesirable increasing trends in the low- and low-middle-SDI regions. In addition, the age-standardized DALY and death rates attributable to each risk factor except household air pollution and low temperature were the highest in the low-middle-SDI region. In 2019, the COPD burden attributable to smoking ambient particulate matter, ozone, occupational particles, low and high temperature was obviously greater in males than in females. Meanwhile, the most important risk factors for female varied across regions (low- and low-middle-SDI regions: household air pollution; middle-SDI region: ambient particles; high-middle- and high-SDI region: smoking).

Conclusions

Increasing trends of COPD burden attributable to ambient particulate matter, ozone, and high temperature exposure in the low-middle- and low-SDI regions call for an urgent need to implement specific and effective measures. Moreover, considering the gender differences in COPD burdens attributable to some risk factors such as ambient particulate matter and ozone with similar SEV, further research on biological differences between sexes in COPD and relevant policy-making of disease prevention are required.
Cardiovascular risk in children: a burden for future generations
Authors: Candelino Maria , Tagi Veronica Maria , Chiarelli Francesco
Published: April 2022

Cardiovascular diseases are the main causes of death and health costs in developed countries. Although cardiovascular diseases are thought to affect only adulthood, the underlying process of atherosclerosis begins in the first decade of life. Epidemiological studies show that severity of atherosclerosis depends both on the number and intensity of risk factors. Early detection of cardiovascular risk in childhood is the most powerful tool to prevent cardiovascular accidents in adulthood and possibly reduce its consequent burden for the future.

A large amount of cardiovascular risk factors is already detectable in childhood and include non-modifiable elements, among which genetic factors and congenital heart diseases, and modifiable elements, which depend on environmental effects (e.g. lifestyle and nutrition). Regardless of the possibility to intervene on these factors, an early diagnosis is fundamental to ensure an optimal life expectancy in adulthood. The most important cardiovascular risk factors in the paediatric age and adolescence are excess weight, arterial hypertension, glucose metabolism and lipid metabolism alterations.

In this review we will discuss the main risk factors strictly correlated with cardiac and vessels diseases, focusing on their pathogenesis, diagnosis, and treatments.
DNA methylation regulates TIGIT expression within the melanoma microenvironment, is prognostic for overall survival, and predicts progression-free survival in patients treated with anti-PD-1 immunotherapy
Authors: Niebel Dennis , Fröhlich Anne , Zarbl Romina , Fietz Simon , de Vos Luka , Vogt Timo J. , Dietrich Jörn , Sirokay Judith , Kuster Pia , Saavedra Gonzalo , Ramírez Valladolid Susana , Hoffmann Friederike , Strieth Sebastian , Landsberg Jennifer , Dietrich Dimo
Published: April 2022

Background

TIGIT is an immune checkpoint under investigation as therapeutic target. Understanding the regulation of TIGIT on an epigenetic level might support the development of companion biomarkers.

Methods

We correlated TIGIT DNA methylation of single CpG sites with gene expression, signatures of immune infiltrates and interferon-γ, and survival in melanoma. We further analyzed methylation levels in immune cell subsets, melanocyte and melanoma cell lines. TIGIT expression patterns within components of the melanoma microenvironment were analyzed by single cell sequencing. We used quantitative methylation-specific PCR, flow cytometry, and immunohistochemistry for correlations between expression and methylation and to assess the effect of pharmacological demethylation of melanoma cells treated with 5‐aza‐2‐deoxycytidine (decitabine). Finally, we investigated the association of patients’ survival with TIGIT mRNA and methylation.

Results

Depending on the sequence context of the analyzed CpG site, we found a cell type-specific TIGIT gene locus methylation pattern and significant correlations of TIGIT methylation with mRNA expression, an interferon γ signature, and distinct immune cell infiltrates, including TIGIT+ lymphocytes. We detected a melanoma cell-intrinsic TIGIT protein expression. Pharmacological demethylation of the A375 melanoma cell line led to a constitutive TIGIT expression. Low promoter flank methylation and high mRNA expression was associated with patients’ prognosis and predicted progression-free survival in patients treated with anti-PD-1 immunotherapy. A high TIGIT+ lymphocyte score was associated with better progression-free survival under anti-PD-1 immunotherapy.

Conclusions

Our data demonstrate an epigenetic regulation of TIGIT expression via DNA methylation within the melanoma microenvironment. TIGIT DNA methylation and expression may serve as predictive biomarkers in the context of immunotherapies in melanoma.
Evaluation of photoreceptor-directed fibroblasts derived from retinitis pigmentosa patients with defects in the EYS gene: a possible cost-effective cellular model for mechanism-oriented drug
Authors: Rai Dilip , Iwanami Masaki , Takahashi Yoriko , Komuta Yukari , Aoi Noriyuki , Umezawa Akihiro , Seko Yuko
Published: April 2022

Background

The most common gene responsible for autosomal recessive retinitis pigmentosa (RP) isEYS.The manner of decay of genetically defectiveEYSgene transcripts varies depending on the type of mutation using our cellular model, which consists of induced photoreceptor-directed fibroblasts from EYS-RP patients (EYS-RP cells). However, disease-specific profiles have not been clarified in EYS-RP cells. Herein we investigated comprehensive gene expression patterns and restoration of altered expression by low molecular weight molecules in EYS-RP cells.

Methods

Using induced photoreceptor-like cells byCRX,RAX,NeuroD,andOTX2, we employed qRT-PCR and DNA microarray analysis to compare expression levels of disease-related genes in EYS-RP cells. We investigated the effect of antiapoptotic or anti-endoplasmic reticulum (ER) stress/antioxidant reagents on the restoration of altered gene expression.

Results

Expression levels of phototransduction-related genes (blue opsin, rhodopsin, S-antigen, GNAT1, GNAT2) were lower in EYS-RP cells.CRYGDwas extracted by global gene expression analysis, as a downregulated, retina-related and apoptosis-, endoplasmic reticulum (ER) stress- or aging-related gene. Pathway enrichment analysis suggested that “complement and coagulation cascades,” “ECM-receptor interaction” and “PI3K-Akt signaling pathway” could be involved in EYS-RP-associated pathogenesis. Among the matching/overlapping genes involved in those pathways,F2Rwas suggested as an EYS-RP-associated gene. The downregulation ofCRYGDandF2Rwas completely restored by additional 4-PBA, an inhibitor of ER stress, and partially restored by metformin or NAC. In addition, 4-PBA normalized the expression level of cleaved caspase-3.

Conclusions

Our cellular model may reflect the ER stress-mediated degenerative retina and serve as a pathogenesis-oriented cost-effective rescue strategy for RP patients.
Reconstructing the pulmonary niche with stem cells: a lung story
Authors: Varghese Barbie , Ling Zihan , Ren Xi
Published: April 2022

The global burden of pulmonary disease highlights an overwhelming need in improving our understanding of lung development, disease, and treatment. It also calls for further advances in our ability to engineer the pulmonary system at cellular and tissue levels. The discovery of human pluripotent stem cells (hPSCs) offsets the relative inaccessibility of human lungs for studying developmental programs and disease mechanisms, all the while offering a potential source of cells and tissue for regenerative interventions. This review offers a perspective on where the lung stem cell field stands in terms of accomplishing these ambitious goals. We will trace the known stages and pathways involved in in vivo lung development and how they inspire the directed differentiation of stem and progenitor cells in vitro.We will also recap the efforts made to date to recapitulate the lung stem cell niche in vitro via engineered cell–cell and cell-extracellular matrix (ECM) interactions.
Adult stem cell sources for skeletal and smooth muscle tissue engineering
Authors: Salemi Souzan , Prange Jenny A. , Baumgartner Valentin , Mohr-Haralampieva Deana , Eberli Daniel
Published: April 2022

Introduction

Tissue engineering is an innovative field with enormous developments in recent years. These advances are not only in the understanding of how stem cells can be isolated, cultured and manipulated but also in their potential for clinical applications. Thus, tissue engineering when applied to skeletal and smooth muscle cells is an area that bears high benefit for patients with muscular diseases or damage. Most of the recent research has been focused on use of adult stem cells. These cells have the ability to rejuvenate and repair damaged tissues and can be derived from different organs and tissue sources. Recently there are several different types of adult stem cells, which have the potential to function as a cell source for tissue engineering of skeletal and smooth muscles. However, to build neo‐tissues there are several challenges which have to be addressed, such as the selection of the most suitable stem cell type, isolation techniques, gaining control over its differentiation and proliferation process.

Conclusion

The usage of adult stem cells for muscle engineering applications is promising. Here, we summarize the status of research on the use of adult stem cells for cell transplantation in experimental animals and humans. In particular, the application of skeletal and smooth muscle engineering in pre-clinical and clinical trials will be discussed.
Trust in COVID-19 policy among public health professionals in Israel during the first wave of the pandemic: a cross-sectional study
Authors: Zohar Tamar , Negev Maya , Sirkin Maia , Levine Hagai
Published: April 2022

Background

The COVID-19 pandemic has highlighted the important role of professionals in designing and communicating effective policies. The purpose of this study was to evaluate the level of trust in the COVID-19 national public health policy among public health professionals in Israel and its correlates during the first wave of the pandemic.

Methods

A purposive sampling of public health professionals in Israel, through professional and academic public health networks (N = 112). The survey was distributed online during May 2020. Level of trust was measured by the mean of 18 related statements using a 5-point Likert scale, where 1 means not at all and 5 means to a very high extent, and grouped as low and high trust by median (2.75).

Results

A moderate level of trust in policy was found among professionals (Mean: 2.84, 95% Cl: [2.70, 2.98]). The level of trust among public health physicians was somewhat lower than among researchers and other health professionals (Mean: 2.66 vs. 2.81 and 2.96, respectively,p = 0.286), with a higher proportion expressing low trust (70% vs. 51% and 38%, respectively,p < 0.05). Participants with a low compared to high level of trust in policy were less supportive of the use of Israel Security Agency tools for contact tracing (Mean = 2.21 vs. 3.17,p < 0.01), and reported lower levels of trust in the Ministry of Health (Mean = 2.52 vs. 3.91,p < 0.01). A strong positive correlation was found between the level of trust in policy and the level of trust in the Ministry of Health (rs = 0.782,p < 0.01). Most professionals (77%) rated their involvement in decision making as low or not at all, and they reported a lower level of trust in policy than those with high involvement (Mean = 2.76 vs. 3.12,p < 0.05). Regarding trust in the ability of agencies to deal with the COVID-19 crisis, respondents reported high levels of trust in the Association of Public Health Physicians (80%) and in hospitals (79%), but very low levels of trust in the Minister of Health (5%).

Conclusions

This study shows that Israeli public health professionals exhibited moderate levels of trust in COVID-19 national public health policy and varied levels of trust in government agencies during the first wave of COVID-19. The level of trust in policy was lower among most of the participants who were not involved in decision making. The level of trust found is worrisome and should be monitored, because it may harm cooperation, professional response, and public trust. Professionals’ trust in policy-making during early stages of emergencies is important, and preemptive measures should be considered, such as involving professionals in the decision-making process, maintaining transparency of the process, and basing policy on scientific and epidemiological evidence.
The relationship between rigorous perception of one’s own body and self, unhealthy eating behavior and a high risk of anorexic readiness: a predictor of eating disorders in the group of female ballet dancers and artistic gymnasts at the beginning of their career
Authors: Leonkiewicz Magdalena , Wawrzyniak Agata
Published: April 2022

Background

A group that is particularly exposed to eating disorders are young sportswomen who practice aesthetic disciplines, for whom it is important to keep a slim figure. Hence, the purpose of the study was to present the assessment of perception of one’s own body and self as well as nutritional behavior in the group of ballet dancers and artistic gymnasts (BGA, n = 60) aged 10–12 against the background of the peer group (K, n = 60) and to determine the relationship between the studied elements, as well as anorexic readiness risk assessment to help diagnose premorbid stage of eating disorders with full symptoms.

Methods

Anthropometric measurements (height, body weight) and the assessment of adipose tissue were performed. Using a questionnaire, data on physical activity, perception of one's own body and self, and selected eating behaviors were collected.

Results

Underweight was observed in nearly half of the girls from the BGA group and the content of adipose tissue was significantly lower. Girls from the BGA group were characterized by overestimation of body size (p = 0.032), the need to improve their appearance/body (p = 0.025) and wanting to be the best in many areas of life (p = 0.002) significantly more often than in the K group. Moreover, they significantly more often limited the consumption of fats and carbohydrates (p = 0.044) and felt angry with themselves after too large of a meal (p = 0.050). It was shown that unhealthy eating behavior in the BGA group was significantly associated with rigorous self-perception (r = 0.42; p < 0.001). Students from the BGA group were more often exposed to a higher risk of anorexic readiness (p = 0.001). In a detailed analysis, it was found that eating behaviors, such as fasting, limiting the consumption of fats and carbohydrates, and avoiding eating under stress, were associated with feelings of dissatisfaction with oneself, the belief that appearance is extremely important in achieving life success and the need to improve appearance.

Conclusion

The obtained research results can be used as a source of information for specialists (including dietitians and psychologists), for the preparation of educational and repair programs in the group of ballet dancers or artistic gymnasts aged 10–12, including nutritional education and psychological care.