bluuebunny/crossref_metadata_2025 huggingface dataset:
Two divergent chloroplast genome sequence clades captured in the domesticated rice gene pool may have significance for rice production
Authors: Moner Ali Mohammad , Furtado Agnelo , Henry Robert J.
Published: October 2020

Background

The whole chloroplast genomes of 3018 rice genotypes were assembled from available sequence data by alignment with a reference rice chloroplast genome sequence, providing high quality chloroplast genomes for analysis of diversity on a much larger scale than in any previous plant study.

Results

Updated annotation of the chloroplast genome identified 13 more tRNA genes and 30 more introns and defined the function of more of the genes. Domesticated rice had chloroplast genomes that were distinct from those in wild relatives. Analysis confirms an Australian chloroplast clade as a sister to the domesticated clade. All domesticated rice genotypes could be assigned to one of two main clades suggesting the domestication of two distinct maternal genome clades that diverged long before domestication. These clades were very distinct having 4 polymorphisms between all 1486 accession in clade A and all 1532 accessions in clade B. These would result in expression of 3 proteins with altered amino acid sequences and a tRNA with an altered sequence and may be associated with adaptive evolution of the two chloroplast types. Diversity within these pools may have been captured during domestication with subclades enriched in specific groups such as basmati, tropical japonica and temperate japonica. However the phylogenies of the chloroplast and nuclear genomes differed possibly due to modern rice breeding and reticulate evolution prior to domestication. Indica and aus genotypes were common in both chloroplast clades while japonica genotypes were more likely to be found in the same clade (cladeB).

Conclusions

The different evolutionary paths of the cytoplasmic and nuclear genomes of rice have resulted in the presence of apparently functional chloroplast genome diversity and the implications for rice crop performance require further investigation.
Cardiac symptom attribution and knowledge of the symptoms of acute myocardial infarction: a systematic review
Authors: Birnbach Benedikt , Höpner Jens , Mikolajczyk Rafael
Published: October 2020

Background

Since the knowledge of the symptoms of acute myocardial infarction (AMI) may reduce the decision time for patients to seek help in case of an AMI, we aimed to summarize evidence on the knowledge of the AMI symptoms and the symptom attribution in case of an acute coronary syndrome (ACS).

Methods

Therefore, we systematically searched the databases PubMed, CINAHL, Embase, and Cochrane Library for relevant studies published between January 1, 2008 and 2019 (last search August 1, 2019).

Results

A total of 86 studies were included, with a composite sample size of 354,497 participants. The weighted mean of the knowledge scores for the symptoms of AMI of 14,420 participants from the general population, was 42.1% (when maximum score was considered 100%) and 69.5% for 7642 cardiac patients. There was a substantially better level of knowledge for six symptoms (‘chest pain or discomfort’, ‘shortness of breath’, ‘pain or discomfort in arms or shoulders’, ‘feeling weak, lightheaded, or faint’, ‘pain or discomfort in the jaw, neck, or back’, and ‘sweating’) (49.8–88.5%) compared to the four less obvious/atypical symptoms ‘stomach or abdominal discomfort’, ‘nausea or vomiting’, ‘headache’, and ‘feeling of anxiety’ (8.7–36.7%). Only 45.1% of 14,843 patients, who experienced ACS, have correctly attributed their symptoms to a cardiac cause.

Conclusion

In conclusion, we found a moderate to good knowledge of “classic” and insufficient knowledge of less obvious symptoms of AMI. This might suggest that increasing knowledge about less obvious symptoms of AMI could be beneficial. It appears also important to address cardiac attribution of symptoms.
Efficacy and safety of early ultrafiltration in patients with acute decompensated heart failure with volume overload: a prospective, randomized, controlled clinical trial
Authors: Hu Jingyi , Wan Qianli , Zhang Yue , Zhou Jun , Li Miaomiao , Jiang Li , Yuan Fang
Published: October 2020

Background

Ultrafiltration decreases total body water and improves the alveolar to arterial oxygen gradient. The aims of the study were to investigate the efficacy and safety of early ultrafiltration in acute decompensated heart failure (ADHF) patients.

Methods

100 patients with ADHF within 24 h of admission were randomly assigned into early ultrafiltration (n = 40) or torasemide plus tolvaptan (n = 60) groups. The primary outcomes were weight loss and an increase in urine output on days 4 and 8 of treatment.

Results

Patients who received early ultrafiltration for 3 days achieved a greater weight loss (kg) (− 2.94 ± 3.76 vs − 0.64 ± 0.91, P < 0.001) and urine increase (mL) (198.00 ± 170.70 vs 61.77 ± 4.67, P < 0.001) than the torasemide plus tolvaptan group on day 4. From days 4 to 7, patients in the early ultrafiltration group received sequential therapy of torasemide and tolvaptan. Better control of volume was reflected in a greater weight loss (− 3.72 ± 3.81 vs − 1.34 ± 1.32, P < 0.001) and urine increase (373.80 ± 120.90 vs 79.5 ± 52.35, P < 0.001), greater reduction of B-type natriuretic peptide (BNP) (pg/mL) (− 1144 ± 1435 vs − 654.02 ± 889.65, P = 0.037), NYHA (New York Heart Association) functional class (− 1.45 ± 0.50 vs − 1.17 ± 0.62, P = 0.018), jugular venous pulse (JVP) score (points) (− 1.9 ± 1.13 vs − 0.78 ± 0.69, P < 0.001), inferior vena cava (IVC) diameter (mm) (− 15.35 ± 11.03 vs − 4.98 ± 6.00, P < 0.001) and an increase in the dyspnea score (points) (4.08 ± 3.44 vs 2.77 ± 2.03, P = 0.035) in the early ultrafiltration group on day 8. No significant differences were found in the readmission and mortality rates in the 2 patient groups at the 1-month and 3-month follow-ups. Both groups had a similar stable renal profile.

Conclusion

Early ultrafiltration is superior to diuretics for volume overload treatment initiation of ADHF patients.

Trial registration Chinese Clinical Trial Registry, ChiCTR2000030696, Registered 10 March 2020—Retrospectively registered, https://www.chictr.org.cn/showproj.aspx?proj=29099.
Confirmatory factor analysis of the Evidence-Based Practice Attitude Scale (EBPAS) in a large and representative Swedish sample: is the use of the total scale and subscale scores justified?
Authors: Santesson Anna Helena Elisabeth , Bäckström Martin , Holmberg Robert , Perrin Sean , Jarbin Håkan
Published: October 2020

Background

There is a call for valid and reliable instruments to evaluate implementation of evidence-based practices (EBP). The 15-item Evidence-Based Practice Attitude Scale (EBPAS) measures attitude toward EBP, incorporating four lower-order factor subscales (Appeal, Requirements, Openness, and Divergence) and a Total scale (General Attitudes). It is one of a few measures of EBP attitudes evaluated for its psychometric properties. The reliability of the Total scale has been repeatedly supported, but also the multidimensionality of the inventory. However, whether all of the items contribute to the EBPAS Total beyond their subscales has yet to be demonstrated. In addition, the Divergence subscale has been questioned because of its low correlation with the other subscales and low inter-item correlations. The EBPAS is widely used to tailor and evaluate implementation efforts, but a Swedish version has not yet been validated. This study aimed to contribute to the development and cross-validation of the EBPAS by examining the factor structure of t a Swedish-language version in a large sample of mental health professionals.

Methods

The EBPAS was translated into Swedish and completed by 570 mental health professionals working in child and adolescent psychiatry settings spread across Sweden. The factor structure was examined using first-order, second-order and bifactor confirmatory factor analytic (CFA) models.

Results

Results suggested adequate fit for all CFA models. The EBPAS Total was strongly supported in the Swedish version. Support for the hierarchical second-order model was also strong, while the bifactor model gave mixed support for the subscales. The Openness and Requirements subscales came out best, while there were problems with both the Appeal (e.g. not different from the General Attitudes factor) and the Divergence subscales (e.g. low reliability).

Conclusions

Overall, the psychometric properties were on par with the English version and the total score appears to be a valid measure of general attitudes towards EBP. This is the first study supporting this General Attitudes factor based on a bifactor model. Although comparatively better supported in this Swedish sample, we conclude that the use of the EBPAS subscale scores may result in misleading conclusions. Practical implications and future directions are discussed.
Chronic lead poisoning induced abdominal pain and anemia: a case report and review of the literature
Authors: Yang Yuan , Li Shujun , Wang Hong , Liu Morong , Tuo Biguang , Wu Huichao , Deng Shili , Liu Xuemei
Published: October 2020

Background

Chronic lead poisoning (CLP) is a rare cause of abdominal pain and is common in young children, in whom the incidence is higher than it is in adults. As the symptoms of CLP are nonspecific, misdiagnoses or missed diagnoses often occur, especially in sporadic cases.

Case presentation

We report a 28-year-old young man who was misdiagnosed with renal colic due to sudden acute abdominal pain. After a detailed medical history and physical examination, other possible causes were excluded, CLP was finally diagnosed, and he recovered after chelation treatment.

Conclusion

Abdominal pain is a very common clinical symptom in adults, which has many causes. We should be vigilant against chronic poisoning, especially CLP. Detailed diagnosis and physical examination are crucial in early diagnosis and treatment.
Mediating factors on the association between fear of falling and health-related quality of life in community-dwelling German older people: a cross-sectional study
Authors: Gottschalk Sophie , König Hans-Helmut , Schwenk Michael , Jansen Carl-Philipp , Nerz Corinna , Becker Clemens , Klenk Jochen , Dams Judith
Published: October 2020

Background

Previous research has shown that not only falls, but also fear of falling (FoF) influences health-related quality of life (HrQoL) negatively. The EQ-5D (consisting of an index and a visual analogue scale [EQ-VAS]) is a frequently used instrument to determine HrQoL in clinical studies and economic evaluations, but no previous study compared the association between FoF and the EQ-5D index with the association between FoF and the EQ-VAS. Moreover, factors that influence the association between FoF and HrQoL are rarely examined. Thus, this study aimed to examine the association between FoF and HrQoL and to examine factors that mediate the association.

Methods

FoF (Short Falls Efficacy Scale International) and HrQoL (EQ-5D descriptive system, EQ-5D index, and EQ-VAS) were assessed in a sample of community-dwelling older persons (≥70 years) participating in the baseline assessment of a randomized controlled trial (N = 309). Linear and logistic regression analyses were performed, adjusting for sociodemographic variables, frequency of falls, number of chronic conditions, functional mobility (Timed up-and-go test), and subjective functional capacity (LLFDI function and disability scales). Multiple regression models were used to test the mediating effects.

Results

Moderate or high FoF was prevalent in 66% of the sample. After adjusting for covariates, FoF was negatively associated with the EQ-5D index, but not with the descriptive system or the EQ-VAS. Subjective functional capacity partly mediated the association between FoF and the EQ-5D index and completely mediated the association between FoF and the EQ-VAS.

Conclusion

FoF was negatively associated with the EQ-5D index. As subjective functional capacity mediated the association between FoF and HrQoL, future interventions should account for subjective functional capacity in their design.
Self-reported activities of daily living, health and quality of life among older adults in South Africa and Uganda: a cross sectional study
Authors: Yaya Sanni , Idriss-Wheeler Dina , Sanogo N’doh Ashken , Vezina Maude , Bishwajit Ghose
Published: October 2020

Background

Difficulties in performing the activities of daily living (ADL) are common among middle-aged and older adults. Inability to perform the basic tasks as well as increased healthcare expenditure and dependence on care can have debilitating effects on health and quality of life. The objective of this study was to examine the relationship between self-reported difficulty in activities of daily living (ADL), health and quality of life among community-dwelling, older population in South Africa and Uganda.

Methods

We analyzed cross-sectional data on 1495 men and women from South Africa (n = 514) and Uganda (n = 981) which were extracted from the SAGE Well-Being of Older People Study (WOPS 2011–13). Outcome variables were self-reported health and quality of life (QoL). Difficulty in ADL was assessed by self-reported answers on 12 different questions covering various physical and cognitive aspects. The association between self-reported health and quality of life with ADL difficulties was calculated by using multivariable logistic regression models.

Results

Overall percentage of good health and good quality of life was 40.4% and 20%, respectively. The percentage of respondents who had 1–3, 3–6, > 6 ADL difficulties were 42.4%7, 30.97% and 14.85%, respectively. In South Africa, having > 6 ADL difficulties was associated with lower odds of good health among men [Odds ratio = 0.331, 95%CI = 0.245,0.448] and quality of life among men [Odds ratio = 0.609, 95%CI = 0.424,0.874] and women [Odds ratio = 0.129, 95%CI = 0.0697,0.240]. In Uganda, having > 6 ADL difficulties was associated lower odds of good health [Odds ratio = 0.364, 95%CI = 0.159,0.835] and quality of life [Odds ratio = 0.584, 95%CI = 0.357,0.954].

Conclusion

This study concludes that difficulty in ADL has a significant negative association with health and quality of life among community-dwelling older population (> 50 years) in South Africa and Uganda. The sex differences support previous findings on differential health outcomes among men and women, and underline the importance of designing sex-specific health intervention programs.
Precision implementation of early ambulation in elderly patients undergoing off-pump coronary artery bypass graft surgery: a randomized-controlled clinical trial
Authors: Cui Zhaomei , Li Na , Gao Chaonan , Fan Yiou , Zhuang Xin , Liu Jing , Zhang Jie , Tan Qi
Published: October 2020

Background

Although early ambulation (EA) is associated with improved outcomes in post-operative patients, implementation of EA in elderly patients is still a challenge. In this study, we aimed to design and assess a precision early ambulation program for cardiac rehabilitation.

Methods

We conducted a single-center, randomized and controlled clinical trial in elderly patients aged over 60 years after off-pump coronary artery bypass graft (OPCABG) surgery. Patients were randomly assigned to a precision early ambulation (PEA) group or a routine ambulation (Control) group. Age-predicted maximal heart rate (APMHR) and maximal oxygen uptake (VO2max) were used as a reference to formulate and monitor the PEA regimen. The primary end-point was the postoperative length of stay in hospital (PLOS). The secondary end-points included 90-day mortality, incidence of early discharge, laboratory tests, length of ICU stay, the incidence of multiple organ complications and post-traumatic stress disorder (PTSD). Ambulation outcomes were also recorded.

Results

In total, 178 patients were enrolled (n = 89 per group). In the intent-to-treat analysis, PLOS in the PEA group was shorter than that in the Control group (9.04 ± 3.08 versus 10.09 ± 3.32 days, respectively. Mean difference 1.045 days; 95% confidence interval [CI] 0.098–1.992; P = 0.031 in the unadjusted model; mean difference 0.957 days; CI 0.007–1.907; P = 0.048 in adjusted model). The incidence of early discharge differed significantly between the PEA and control groups (41[46.1%] versus 24[27.0%] patients, respectively. Odds ratio [OR] 0.432; CI 0.231–0.809; P = 0.009 in unadjusted model; OR 0.466; CI 0.244–0.889, P = 0.02 in adjusted model). The time of first bowel movement, partial pressure O2 and post-traumatic stress disorder score in the PEA group were better than those in the Control group. Participants walked much longer distances on day 3 in the PEA group than those in the Control group (76.12 ± 29.02 versus 56.80 ± 24.40 m, respectively, P < 0.001).

Conclusion

APMHR and VO2max are valuable for implementation of PEA according to an established security threshold. PEA after OPCAPG surgery is safe and reliable for elderly patients, not only reducing the hospital stay, but also improving their physiological and psychological symptoms.

Trial registration

This study is a component of a protocol retrospectively registered: Application of ERAS in cardiovascular surgery. Trial registration number: ChiCTR1800018167. Date of registration: 3rd September, 2018. URL of trial registry record: http://www.chictr.org.cn/index.aspx
Disseminated Saksenaea infection in an immunocompromised host associated with a good clinical outcome: a case report and review of the literature
Authors: Davidson N. , Campbell K. , Foroughi F. , Tayal V. , Lynar S. , Crawford L. C. , Kidd S. E. , Baird R. , Davies J. , Meumann E. M.
Published: October 2020

Background

Saksenaea species (spp.) are uncommon causes of mucormycosis but are emerging pathogens mostly associated with trauma and soil contamination often in immunocompetent hosts. Due to lack of sporulation in the laboratory, diagnosis and susceptibility testing is difficult so optimal treatment regimens are unknown.

Case presentation

A 67 year-old man from the Northern Territory in Australia, with a history of eosinophilic granulomatosis with polyangiitis, developed disseminated Saksenaea infection after initially presenting with symptoms consistent with bacterial pyelonephritis. Despite a delay in diagnosis; with aggressive surgical management and dual therapy with amphotericin B and posaconazole, he survived.

Conclusions

We describe an unusual case of disseminated infection with a favourable outcome to date.
Vaccine-associated measles in a patient treated with natalizumab: a case report
Authors: Miauton Alix , Tan Rainer , Pantazou Vasiliki , Du Pasquier Renaud , Genton Blaise
Published: October 2020

Background

Safety of live vaccines in patients treated with immunosuppressive therapies is not well known, resulting in contradictory vaccination recommendations. We describe here the first case of vaccine-associated measles in a patient on natalizumab treatment.

Case presentation

A young female patient with relapsing-remitting multiple sclerosis on natalizumab treatment received the live attenuated measles, mumps, and rubella vaccine in preparation for a change in her treatment in favour of fingolimod, with established immunosuppressive qualities. Seven days after receiving the vaccine, our patient experienced diffuse muscle pain, fatigue, and thereafter developed a fever and then an erythematous maculopapular rash, compatible with vaccine associated measles. This was later confirmed by a positive measles RT-PCR throat swab. The patient’s symptoms resolved without any sequelae.

Conclusion

In this case report we review the immunosuppressive qualities of natalizumab and the evidence in favour and against live vaccines in patients on this treatment. Our findings reveal the insufficient understanding of the immunosuppressive effects of new immunomodulators, and thus of the safety of live vaccines in patients on such medications. While this case triggers precaution, there is insufficient evidence to conclude that natalizumab treatment could favor the onset of vaccine-associated measles.
Detection of Beijing strains of MDR M. tuberculosis and their association with drug resistance mutations in katG, rpoB, and embB genes
Authors: Gupta Anamika , Sinha Pallavi , Nema Vijay , Gupta Pramod K. , Chakraborty Pampi , Kulkarni Savita , Rastogi Nalin , Anupurba Shampa
Published: October 2020

Background

Molecular epidemiological studies of Mycobacterium tuberculosis (MTB) are the core of current research to find out the association of the M. tuberculosis genotypes with its outbreak and transmission. The high prevalence of the Beijing genotype strain among multidrug resistance (MDR) TB has already been reported in various studies around India. The overall objective of this study was to detect the prevalence of Beijing genotype strains of MDR M. tuberculosis and their association with the clinical characteristics of TB patients.

Methods

In this study 381 M. tuberculosis clinical isolates were obtained from sputum samples from 2008 to 2014. The multiplex-PCR and Spoligotyping (n = 131) methods were used to investigate the prevalence of the Beijing genotype strain by targeting the Rv2820 gene and their association with drug resistance and clinical characteristics of TB patients. The drug susceptibility testing of first-line anti-TB drugs was performed by using the proportion method and MGIT960. A collection of isolates having Beijing and non-Beijing strains were also characterized to see if Beijing genotype strains had a higher rate of mutations at codons 516, 526 and 531 of the 81-bp region of the rpoB gene, codon 315 of the katG gene, and codon 306 of the embB gene.

Results

The sensitivities and specificities of multiplex-PCR assay compared to that of standard Spoligotyping was detected to be 100%. Further, we observe that the multi drug-resistance was significantly associated with Beijing genotype strains (p = 0.03) and a strong correlation between Beijing genotype strains and specific resistance mutations at the katG315, rpoB531, and embB306 codons (p = < 0.0001, < 0.0001 & 0.0014 respectively) was also found.

Conclusions

This rapid, simple, and cost-effective multiplex PCR assay can effectively be used for monitoring the prevalence of Beijing genotype strains in low resource settings. Findings of this study may provide a scientific basis for the development of new diagnostic tools for detection and effective management of DR-TB in countries with a higher incidence rate of Beijing genotype strains.
Clinical characteristics and prognostic implications of BRCA-associated tumors in males: a pan-tumor survey
Authors: Sun Peng , Li Yue , Chao Xue , Li Jibin , Luo Rongzhen , Li Mei , He Jiehua
Published: October 2020

Background

The BRCA mutation (BRCAm) in males has been reported to confer a higher risk for the development of various tumors. However, little is known about its clinicopathologic features and prognostic implications.

Design

We conducted a retrospective pan-tumor survey on 346 cases of BRCA-associated tumors in males. Comparative analyses were conducted among male and female patients with BRCAm (n = 349), as well as in male patients without BRCAm (n = 4577).

Results

Similar incidences of BRCAm (6.0 vs. 6.6%) and age at diagnosis of tumor (median, 65 vs. 60 years) were observed in male and female patients. Carcinomas of the lung, bladder, stomach, and cutaneous melanoma were the frequent tumors demonstrating BRCAm in males, of which the majority were stage II or III diseases with a higher frequency of BRCA2 mutations. Compared to that in the non-BRCAm group, cutaneous melanoma (16.3 vs. 5.0%), lung cancer (19.4 vs. 11.8%), bladder cancer (15.6 vs. 5.6%), and stomach cancer (11.9 vs. 5.5%) accounted for a higher proportion in the BRCAm group. Advanced disease and more mutation counts (median, 322 vs. 63 mutations) were also found in the BRCAm group. A total of 127 BRCA1 and 311 BRCA2 mutations were identified, of which 21.8 and 28.6% were deleterious, respectively. Frequent deleterious variants were identified in carcinomas of the breast (100.0%), colorectum (62.2%), prostate (43.3%), and stomach (42.9%). BRCA1 fusions with NF1, FAM134C, BECN1, or LSM12 and recurrent BRCA2 mutations at P606L/S, E832K/G, and T3033Lfs*29 were detected. Frameshift mutations in BRCA2 at N1784 (N1784Kfs*3, N1784Tfs*3) were frequently observed in both male and female patients. Compared with those in females, BRCA mutations in males were associated with decreased overall survival (OS) and progression-free survival (PFS). Male patients with deleterious BRCAm displayed increased OS compared with non-BRCAm carriers. The subgroup analysis demonstrated that BRCAm was associated with increased OS in gastric and bladder cancers, decreased PFS in prostate, esophageal, and head and neck cancers, and decreased OS in glioma/glioblastoma in males.

Conclusion

These findings provide an overview of the distinct characteristics and clinical outcomes of male patients with BRCA-associated tumors, suggesting the importance of further genetic BRCA testing in males.
Does distance from a clinic and poverty impact visit adherence for noncommunicable diseases? A retrospective cohort study using electronic medical records in rural Haiti
Authors: Yan Lily D. , Pierre-Louis Dufens , Isaac Benito D. , Jean-Baptiste Waking , Vertilus Serge , Fenelon Darius , Hirschhorn Lisa R. , Hibberd Patricia L. , Benjamin Emelia J. , Bukhman Gene , Kwan Gene F.
Published: October 2020

Background

Adherence to regular outpatient visits is vital to managing noncommunicable diseases (NCDs), a growing burden in low and middle-income countries. We characterized visit adherence among patients with NCDs in rural Haiti, hypothesizing higher poverty and distance from the clinic were associated with lower adherence.

Methods

We analyzed electronic medical records from a cohort of adults in an NCD clinic in Mirebalais, Haiti (April 2013 to June 2016). Visit adherence was: 1) visit constancy (≥1 visit every 3 months), 2) no gaps in care (> 60 days between visits), 3) ≥1 visit in the last quarter, and 4) ≥6 visits per year. We incorporated an adapted measure of intensity of multidimensional poverty. We calculated distance from clinic as Euclidean distance or self-reported transit time. We used multivariable logistic regressions to assess the association between poverty, distance, and visit adherence.

Results

We included 463 adult patients, mean age 57.8 years (SE 2.2), and 72.4% women. Over half of patients had at least one visit per quarter (58.1%), but a minority (19.6%) had no gaps between visits. Seventy percent of patients had a visit in the last quarter, and 73.9% made at least 6 visits per year. Only 9.9% of patients met all adherence criteria. In regression models, poverty was not associated with any adherence measures, and distance was only associated with visit in the last quarter (OR 0.87, 95% CI [0.78 to 0.98], p = 0.03) after adjusting for age, sex, and hardship financing.

Conclusions

Visit adherence was low in this sample of adult patients presenting to a NCD Clinic in Haiti. Multidimensional poverty and distance from clinic were not associated with visit adherence measures among patients seen in the clinic, except for visit in the last quarter. Future research should focus on identifying and addressing barriers to visit adherence.
Primary ileal volvulus: a rare twist in an elderly patient—case report
Authors: Agrawal Srikant , Yadav Ashwini Ranjan , Nepal Bikash , Upadhyay Pramod Kumar
Published: October 2020

Background

Small bowel volvulus is a rare entity and it is even rarer for the ileum to undergo torsion without any known predisposing factors. It presents as acute abdomen with features of intestinal obstruction. As it is a life-threatening condition, it should be kept as a differential for small bowel obstruction despite its rarity. Therefore, we report this case.

Case report

A 60-year-old gentleman presented to our emergency department with a 2-day history of worsening abdominal pain, vomiting, abdominal distension and obstipation. Exploratory laparotomy was done which revealed ileal volvulus with no predisposing factors. Derotation of the segment was done. The postoperative period was uneventful and on follow up after a month, he had a satisfying recovery.

Conclusion

Though primary ileal volvulus is a rare diagnosis, it should be kept in mind in any patient with small bowel obstruction with pain out of proportion and resistant to opioid management. Early diagnosis and urgent surgical intervention is the key to prevent bowel necrosis and associated morbidity and mortality.
A systematic review and meta-analysis of Liuzijue in stable patients with chronic obstructive pulmonary disease
Authors: Xiao Lu , Duan Hongxia , Li Peijun , Wu Weibing , Shan Chunlei , Liu Xiaodan
Published: October 2020

Background

To investigate the effectiveness of Liuzijue exercise on chronic obstructive pulmonary disease (COPD) in the stable phase.

Methods

We searched six electronic bibliographic databases (PubMed, EMBASE, The Cochrane Library, Web of Science, CNKI, and Wan Fang Data) from inception to August 2018. Randomized controlled trials (RCTs) were included if they evaluated the effect of Liuzijue exercise on stable COPD. Cochrane Collaboration risk-of-bias tool (Cochrane Handbook 5.1.0) was used to assess the risk of bias of included RCTs. Meta-analysis was performed using the Review Manager software (RevMan V.5.3.5) provided by the Cochrane Collaboration. Outcomes assessed included dyspnea, exercise capacity, lung function, and quality of life.

Results

Fourteen RCTs involving 920 stable COPD patients were included in this systematic review and meta-analysis. The control groups received usual care. The average number of training sessions per participant was 9.3 per week, and the average length of these training sessions was 31.6 min per week. Training duration varied from 3 to 12 months. Meta-analysis results showed that Liuzijue exercise can effectively improve patients’ Modified Medical Research Council Dyspnea Scale scores (MD = − 0.73, 95% CI: − 1.13 to − 0.33, P < 0.05), 6MWD (MD = 17.78, 95% CI: 7.97 to 27.58, P < 0.05), forced expiratory volume in one second (FEV1) (MD = 0.23, 95% CI: 0.07 to 0.38, P < 0.05), the percentage of predicted values of FEV1 (FEV1%pred) (MD = 7.59, 95% CI: 2.92 to 12.26, P < 0.05), FEV1/FVC (Forced vital capacity) ratio (MD = 6.81, 95% CI: 3.22 to 10.40, P < 0.05), Quality of life: St. George’s Respiratory Questionnaire total score (MD = − 9.85, 95%CI: − 13.13 to − 6.56, P < 0.05), and Chronic Obstructive Pulmonary Disease Assessment Test score (MD = − 2.29, 95%CI: − 3.27, − 1.30, P < 0.05).

Conclusion

Evidence from meta-analysis suggested that Liuzijue exercise could improve dyspnea, exercise endurance, lung function, and quality of life for stable COPD patients. However, owing to the methodological bias and the placebo effect of Liuzijue exercise, there is a need for further research to confirm these findings.

Trial registration

PROSPERO (ID: CRD42019130973).
Professionalism and inter-communication skills (ICS): a multi-site validity study assessing proficiency in core competencies and milestones in medical learners
Authors: Abu Dabrh Abd Moain , Waller Thomas A. , Bonacci Robert P. , Nawaz Anem J. , Keith Joshua J. , Agarwal Anjali , Merfeld John , Nordin Terri , Winscott Mary Michelle , Belda Thomas E. , Murad Mohammad Hassan , Pantin Sally Ann L. , Steinkraus Lawrence W. , Grau Thomas J. , Angstman Kurt B.
Published: October 2020

Background

Interpersonal and Communication Skills (ICS) and Professionalism milestones are challenging to evaluate during medical training. Paucity in proficiency, direction and validity evidence of assessment tools of these milestones warrants further research. We validated the reliability of the previously-piloted Instrument for Communication skills and Professionalism Assessment (InCoPrA) in medical learners.

Methods

This validity approach was guided by the rigorous Kane’s Framework. Faculty-raters and standardized patients (SPs) used their respective InCoPrA sub-component to assess distinctive domains pertinent to ICS and Professionalism through multiple expert-built simulated-scenarios comparable to usual care. Evaluations included; inter-rater reliability of the faculty total score; the correlation between the total score by the SPs; and the average of the total score by two-faculty members. Participants were surveyed regarding acceptability, realism, and applicability of this experience.

Results

Eighty trainees and 25 faculty-raters from five medical residency training sites participated. ICC of the total score between faculty-raters was generally moderate (ICC range 0.44–0.58). There was on average a moderate linear relationship between the SPs and faculty total scores (Pearson correlations range 0.23–0.44). Majority of participants ascertained receiving a meaningful, immediate, and comprehensive patient-faculty feedback.

Conclusions

This work substantiated that InCoPrA was a reliable, standardized, evidence-based, and user-friendly assessment tool for ICS and Professionalism milestones. Validating InCoPrA showed generally-moderate agreeability and high acceptability. Using InCoPrA also promoted engaging all stakeholders in medical education and training–faculty, learners, and SPs—using simulation-media as pathway for comprehensive feedback of milestones growth.
The development of inpatient cost and nursing service weights in a tertiary hospital in Malaysia
Authors: Hassan Nor Haty , Aljunid Syed Mohamed , Nur Amrizal Muhammad
Published: October 2020

Background

The current healthcare sector consists of diverse services to accommodate the high demands and expectations of the users. Nursing plays a major role in catering to these demands and expectations, but nursing costs and service weights are underestimated. Therefore, this study aimed to estimate the nursing costs and service weights as well as identify the factors that influence these costs.

Methods

A retrospective cross-sectional descriptive study was conducted at Universiti Kebangsaan Malaysia Medical Centre (UKMMC) using 85,042 hospital discharges from 2009 to 2012. A casemix costing method using the step-down approach was used to derive the nursing costs and service weights. The cost analysis was performed using the hospital data obtained from five departments of the UKMMC: Finance, Human Resource, Nursing Management, Maintenance and Medical Information. The costing data were trimmed using a low trim point and high trim point (L3H3) method.

Results

The highest nursing cost and service weights for medical cases were from F-4-13-II (bipolar disorders including mania - moderate, RM6,129; 4.9871). The highest nursing cost and service weights for surgical cases were from G-1-11-III (ventricular shunt - major, RM9,694; 7.8880). In obstetrics and gynaecology (O&G), the highest nursing cost and service weights were from O-6-10-III (caesarean section - major, RM2,515; 2.0467). Finally, the highest nursing cost and service weights for paediatric were from P-8-08-II (neonate birthweight > 2499 g with respiratory distress syndrome congenital pneumonia - moderate, RM1,300; 1.0582). Multiple linear regression analysis showed that nursing hours were significantly related to the following factors: length of stay (β = 7.6, p < 0.05), adult (β = − 6.0, p < 0.05), severity level I (β = − 3.2, p < 0.05), severity level III (β = 7.3, p < 0.05), male gender (β = − 4.2, p < 0.05), and the elderly (β = − 0.5, p < 0.05).

Conclusions

The results showed that nursing cost and service weights were higher in surgical cases compared to other disciplines such as medical, O&G and paediatric. This is possible as there are significant differences in the nursing activities and work processes between wards and specialities.
Epidemiological study to investigate the incidence and prevalence of clinical mastitis, peracute mastitis, metabolic disorders and peripartum disorders, on a dairy farm in a temperate zone in Japan
Authors: Fukushima Yuki , Kino Erina , Furutani Aina , Minamino Tomoya , Mikurino Yoko , Horii Yoichiro , Honkawa Kazuyuki , Sasaki Yosuke
Published: October 2020

Background

Our aim was to investigate the incidence and prevalence of clinical mastitis, peracute mastitis, metabolic disorders, and peripartum disorders, and to examine factors affecting the prevalence of each disease in cows raised on a large dairy farm in a temperate climate in Japan. The present study was performed on a large commercial dairy farm with approximately 2500 Holstein cows. Data were collected from 2014 to 2018, and involved 9663 calving records for 4256 cows.

Results

The incidence rate on the farm was 21.9% for clinical mastitis, 10.4% for peracute mastitis, 2.9% for metabolic disorders, and 3.2% for peripartum disorders. The prevalence rates for clinical mastitis, peracute mastitis, metabolic disorders, and peripartum disorders were 28.0, 13.3, 3.7, and 4.0%, respectively. In all four diseases, the probability of time to occurrence for each disease was associated with parity and calving season (P < 0.05). Regarding metabolic disorders and peripartum disorders, the probability of occurrence decreased during the first 10 days after calving.

Conclusions

Our results showed that clinical mastitis occurred most often in this temperate zone, and that metabolic disorders and peripartum disorders occurred from calving to day 10 post-calving.
The dietary risk index system: a tool to track pesticide dietary risks
Authors: Benbrook Charles M. , Davis Donald R.
Published: October 2020

Background

For years the United States Department of Agriculture’s Pesticide Data Program and the United Kingdom’s Food Standards Agency have published annual or quarterly data on pesticide residues in foods. Both programs report residues in conventionally grown, organic, and imported foods. The US program has tested about 288,000 food samples since 1992, primarily fruits and vegetables consumed by children. Since 1999 the UK has tested about 72,000 samples of a wider range of foods. These data are vital inputs in tracking trends in pesticide dietary risks.

Methods

The Dietary Risk Index (DRI) system facilitates detailed analyses of US and UK pesticide residue data, trends, and chronic risk distributions. The DRI value for a pesticide is the dietary intake of that pesticide from a single serving of food divided by the pesticide’s acceptable daily intake as set by the US Environmental Protection Agency. It can be calculated based on average annual residue concentrations, and on residue levels in individual samples of food. DRI values can be aggregated over multiple pesticides in single foods, and over individual pesticides in multiple foods.

Results

The DRI system provides insights into the levels, trends, and distribution of pesticide dietary risk across most widely consumed foods. By drawing on both US Pesticide Data Program and UK-Food Standards Agency residue data, the DRI is capable of assessing pesticide risks in a significant portion of the global food supply. Substantial reductions in pesticide dietary risks occurred in the early 2000s, primarily from replacement of organophosphate insecticides with seemingly lower-risk neonicotinoids. However, there remain several areas of concern and opportunities to reduce risks. Both herbicide and fungicide dietary risks are rising. Organically grown produce poses risks far lower than corresponding, conventionally grown produce. Risk differences are inconsistent between domestic and imported foods.

Conclusions

The surest ways to markedly reduce pesticide dietary risks are to shift relatively high-risk fruits and vegetables to organic production. For other foods, reducing reliance on pesticides overall, and especially high-risk pesticides, will incrementally lower risks. The DRI system can help focus such efforts and track progress in reducing pesticide dietary risk.
Circular RNAs in renal cell carcinoma: implications for tumorigenesis, diagnosis, and therapy
Authors: Wang Ying , Zhang Yunjing , Wang Ping , Fu Xianghui , Lin Weiqiang
Published: October 2020

Renal cell carcinoma (RCC) is the most common malignant kidney tumor and has a high incidence rate. Circular RNAs (circRNAs) are noncoding RNAs with widespread distribution and diverse cellular functions. They are highly stable and have organ- and tissue-specific expression patterns. CircRNAs have essential functions as microRNA sponges, RNA-binding protein- and transcriptional regulators, and protein translation templates. Recent reports have shown that circRNAs are abnormally expressed in RCC and act as important regulators of RCC carcinogenesis and progression. Moreover, circRNAs have emerged as potential biomarkers for RCC diagnosis and prognosis and targets for developing new treatments. However, further studies are needed to better understand the functions of circRNAs in RCC. In this review, we summarize and discuss the recent research progress on RCC-associated circRNAs, with a focus on their potential for RCC diagnosis and targeted therapy.
Bioinformatic gene analysis for potential therapeutic targets of Huntington’s disease in pre-symptomatic and symptomatic stage
Authors: Xiang Chunchen , Cong Shengri , Liang Bin , Cong Shuyan
Published: October 2020

Background

Huntington’s disease (HD) is a neurodegenerative disorder characterized by psychiatric symptoms, serious motor and cognitive deficits. Certain pathological changes can already be observed in pre-symptomatic HD (pre-HD) patients; however, the underlying molecular pathogenesis is still uncertain and no effective treatments are available until now. Here, we reanalyzed HD-related differentially expressed genes from the GEO database between symptomatic HD patients, pre-HD individuals, and healthy controls using bioinformatics analysis, hoping to get more insight in the pathogenesis of both pre-HD and HD, and shed a light in the potential therapeutic targets of the disease.

Methods

Pre-HD and symptomatic HD differentially expressed genes (DEGs) were screened by bioinformatics analysis Gene Expression Omnibus (GEO) dataset GSE1751. A protein–protein interaction (PPI) network was used to select hub genes. Subsequently, Gene Ontology (GO) enrichment analysis of DEGs and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of hub genes were applied. Dataset GSE24250 was downloaded to verify our hub genes by the Kaplan–Meier method using Graphpad Prism 5.0. Finally, target miRNAs of intersected hub genes involved in pre-HD and symptomatic HD were predicted.

Results

A total of 37 and 985 DEGs were identified in pre-HD and symptomatic HD, respectively. The hub genes, SIRT1, SUZ12, and PSMC6, may be implicated in pre-HD, and the hub genes, FIS1, SIRT1, CCNH, SUZ12, and 10 others, may be implicated in symptomatic HD. The intersected hub genes, SIRT1 and SUZ12, and their predicted target miRNAs, in particular miR-22-3p and miR-19b, may be significantly associated with pre-HD.

Conclusion

The PSMC6, SIRT1, and SUZ12 genes and their related ubiquitin-mediated proteolysis, transcriptional dysregulation, and histone metabolism are significantly associated with pre-HD. FIS1, CCNH, and their related mitochondrial disruption and transcriptional dysregulation processes are related to symptomatic HD, which might shed a light on the elucidation of potential therapeutic targets in HD.
Identification and in vivo characterization of a brain-penetrating nanobody
Authors: Wouters Y , Jaspers T , De Strooper B , Dewilde M
Published: October 2020

Background

Preclinical models to determine blood to brain transport ability of therapeutics are often ambiguous. In this study a method is developed that relies on CNS target-engagement and is able to rank brain-penetrating capacities. This method led to the discovery of an anti-transferrin receptor nanobody that is able to deliver a biologically active peptide to the brain via receptor-mediated transcytosis.

Methods

Various nanobodies against the mouse transferrin receptor were fused to neurotensin and injected peripherally in mice. Neurotensin is a neuropeptide that causes hypothermia when present in the brain but is unable to reach the brain from the periphery. Continuous body temperature measurements were used as a readout for brain penetration of nanobody-neurotensin fusions after its peripheral administration. Full temperature curves were analyzed using two-way ANOVA with Dunnett multiple comparisons tests.

Results

One anti-transferrin receptor nanobody coupled to neurotensin elicited a drop in body temperature following intravenous injection. Epitope binning indicated that this nanobody bound a distinct transferrin receptor epitope compared to the non-crossing nanobodies. This brain-penetrating nanobody was used to characterize the in vivo hypothermia model. The hypothermic effect caused by neurotensin is dose-dependent and could be used to directly compare peripheral administration routes and various nanobodies in terms of brain exposure.

Conclusion

This method led to the discovery of an anti-transferrin receptor nanobody that can reach the brain via receptor-mediated transcytosis after peripheral administration. This method could be used to assess novel proteins for brain-penetrating capabilities using a target-engaging readout.
French People’s positions on supervised injection facilities for drug users
Authors: Munoz Sastre Maria Teresa , Kpanake Lonzozou , Mullet Etienne
Published: October 2020

Background

Supervised injection facilities have been set-up in many countries to curb the health risks associated with unsafe injection practices. These facilities have, however, been met with vocal opposition, notably in France. As harm reduction policies can only succeed to the extent that people agree with them, this study mapped French people’s opinions regarding the setting-up of these facilities.

Method

A sample of 318 adults--among them health professionals--were presented with 48 vignettes depicting plans to create a supervised injection facility in their town. Each vignette contained three pieces of information: (a) the type of substance that would be injected in the facility (amphetamines only, amphetamines and cocaine only, or amphetamines, cocaine and heroin), (b) the type of staff who would be working in the facility (physicians and nurses, specially trained former drug users, specially trained current drug users, or trained volunteers recruited by the municipality), and (c) the staff members’ mission (to be present and observe only, technical counselling about safe injection, counselling about safe injection and hygiene, or counselling and encouragement to follow a detoxification program).

Results

Through cluster analysis, three qualitatively different positions were found: Not very acceptable (20%), Depends on staff and mission (49%), and Always acceptable (31%). These positions were associated with demographic characteristics--namely gender, age and political orientation.

Conclusion

French people’s positions regarding supervised injection facilities were extremely diverse. One type of facility would, however, be accepted by a large majority of people: supervised injection facilities run by health professionals whose mission would be, in addition to technical and hygienic counselling, to encourage patrons to enter detoxification or rehabilitation programs.