Nevin Manimala

Science. 2021 Apr 16;372(6539):eabf1941. doi: 10.1126/science.abf1941.

ABSTRACT

Abruzzi et al argue that transcriptome oscillations found in our study in the absence of Bmal1 are of low amplitude, statistical significance, and consistency. However, their conclusions rely solely on a different statistical algorithm than we used. We provide statistical measures and additional analyses showing that our original analyses and observations are accurate. Further, we highlight independent lines of evidence indicating Bmal1-independent 24-hour molecular oscillations.

PMID:33859003 | DOI:10.1126/science.abf1941

J Neurointerv Surg. 2021 Apr 15:neurintsurg-2021-017487. doi: 10.1136/neurintsurg-2021-017487. Online ahead of print.

ABSTRACT

BACKGROUND: A direct aspiration first pass thrombectomy (ADAPT) is a fast-growing technique for which a broad catalog of catheters that provide a wide range of aspiration forces can be used. We aimed to characterize different catheters’ aspiration performance on stiff clots in an in vitro vascular model. We hypothesized that labeled catheter inner diameter (labeled-ID) is not the only parameter that affects the aspiration force (asp-F) and that thrombus-catheter tip interaction and distensibility also play a major role.

METHODS: We designed an experimental setup consisting of a 3D-printed carotid artery immersed in a water deposit. We measured asp-F and distensibility of catheter tips when performing ADAPT on a stiff clot analog larger than catheter labeled-ID. Correlations between asp-F, catheter ID, and tip distensibility were statistically assessed.

RESULTS: Experimental asp-F and catheter labeled-ID were correlated (r=0.9601; P<0.01). The relative difference between experimental and theoretical asp-F (obtained by the product of the tip’s section area by the vacuum pressure) correlated with tip’s distensibility (r=0.9050; P<0.01), evidencing that ADAPT performance is highly influenced by catheter tip shape-adaptability to the clot and that the effective ID (eff-ID) may differ from the labeled-ID specified by manufacturers. Eff-ID showed the highest correlation with experimental asp-F (r=0.9944; P<0.01), confirming that eff-ID rather than labeled-ID should be considered to better estimate the device efficiency.

CONCLUSIONS: Catheter tip distensibility can induce a significant impact on ADAPT performance when retrieving a stiff clot larger than the device ID. Our findings might contribute to optimizing thrombectomy strategies and the design of novel aspiration catheters.

PMID:33858973 | DOI:10.1136/neurintsurg-2021-017487

Learn Mem. 2021 Apr 15;28(5):148-152. doi: 10.1101/lm.053306.120. Print 2021 May.

ABSTRACT

Humans and others primates are highly attuned to temporal consistencies and regularities in their sensory environment and learn to predict such statistical structure. Moreover, in several instances, the presence of temporal structure has been found to facilitate procedural learning and to improve task performance. Here we extend these findings to visual object recognition and to presentation sequences in which mutually predictive objects form distinct clusters or “communities.” Our results show that temporal community structure accelerates recognition learning and affects the order in which objects are learned (“onset of familiarity”).

PMID:33858967 | DOI:10.1101/lm.053306.120

Tob Control. 2021 Apr 15:tobaccocontrol-2020-056386. doi: 10.1136/tobaccocontrol-2020-056386. Online ahead of print.

ABSTRACT

BACKGROUND: Concerns about the magnitude of illicit cigarette trade have prevented the Government of Pakistan from increasing tobacco taxes. We estimated the proportion of illicit cigarettes sold in Pakistani cities. Moreover, we compared two methods for collecting cigarette packs and investigated if the illicit cigarette trade equates to tax evasion.

METHOD: We analysed cigarette packs collected from 10 cities of Pakistan using two methods: consumer survey based on a two-stage random sampling strategy to recruit adult smokers and photograph their cigarette packs and waste recycle store survey to purchase used cigarette packs. Cigarettes were considered illicit if any one of the following was absent from their packs: text and pictorial health warning, underage sale prohibition warning, retail price and manufacturer’s name. From the consumer survey, we also estimated the proportion of smokers who purchased loose cigarettes (illegal) and packs below the minimum retail price. Taxation officers (n=4) were consulted to assess their level of confidence in judging tax evasion using the above criteria.

RESULTS: Out of 2416 cigarette packs in the consumer survey, 454 (17.8%; 95% CI 15.4% to 20.2%) were illicit. Similarly, out of 6213 packs from waste recycle shops, 1046 (16.8%; 95% CI 15.9% to 17.7%) were illicit; the difference was not statistically significant (p=0.473). Among consumers, 29.5% bought loose cigarettes and 13.8% paid less than the minimum retail price. The taxation officers considered the manufacturer’s name and retail price on cigarette packs as the most relevant criteria to detect tax evasion.

CONCLUSIONS: One in six cigarette packs consumed in Pakistan could be illicit. These figures are far less than those propagated by the tobacco industry. Collecting packs from waste recycle stores is an efficient and valid method to estimate illicit cigarette trade.

PMID:33858966 | DOI:10.1136/tobaccocontrol-2020-056386

BMJ Open. 2021 Apr 15;11(4):e046331. doi: 10.1136/bmjopen-2020-046331.

ABSTRACT

INTRODUCTION: Screening programmes represent a considerable amount of healthcare activity. As complex interventions, they require careful delivery to generate net benefit. Much screening work occurs in primary care. Despite intensive study of intervention delivery in primary care, there is currently no synthesis of the delivery of screening programmes in this setting. The purpose of this review is to describe and critically evaluate the delivery of screening programmes in general practice and community services.

METHODS AND ANALYSIS: We will use scoping review methods to explore which components of screening programmes are delivered in primary care and systematic review methods to locate and synthesise evidence on how screening programmes can be delivered in primary care, including barriers, facilitators and strategies. We will include empirical studies of any design which consider screening programmes in high-income countries, based in part or whole in primary care. We will search 20 information sources from 1 January 2000, including those relating to health (eg, MEDLINE, Embase, CINAHL), management (eg, Rx for change database) and grey literature (eg, OpenGrey, screening committee websites). Two reviewers will screen citations and full texts of potentially eligible studies and assess these against inclusion criteria. Qualitative and quantitative data will be extracted in duplicate and synthesised using a best fit framework approach. Within the systematic review, the mixed methods appraisal tool will be used to assess risk of bias.

ETHICS AND DISSEMINATION: No ethics approval is required. We will disseminate findings to academics through publication and presentation, to decision-makers through national screening bodies, to practitioners through professional bodies, and to the public through social media.

PROSPERO REGISTRATION NUMBER: CRD42020215420.

PMID:33858873 | DOI:10.1136/bmjopen-2020-046331

Zhonghua Yu Fang Yi Xue Za Zhi. 2021 Apr 6;55(4):521-527. doi: 10.3760/cma.j.cn112150-20200331-00481.

ABSTRACT

Objective: The purpose of this study was to investigate the IgG antibody levels of whooping cough, diphtheria, and tetanus in pregnant women in Nanshan District. Methods: From January to March 2019, 495 pregnant women who met the inclusion criteria in a hospital in Nanshan District, Shenzhen were selected as the survey subjects. The enzyme-linked immunosorbent assay was used to detect serum levels of pertussis, diphtheria, and tetanus IgG antibodies and we compared the differences in antibody levels of pregnant women with different characteristics. Results: The maternal age was (29.23±4.08) years old. The geometric mean concentration of pertussis antibody was 2.589 (1.172-4.953) IU/ml, 1.01% (5 cases) of pregnant women had pertussis antibody concentration ≥ 40 IU/ml, and 75.15% (372 cases) of pregnant women had pertussis antibody concentration<5 IU/ml. The GMC value and antibody positive rate of diphtheria in pregnant women were 0.024(0.009-0.065) IU/ml and 72.53% (359 cases), respectively. The GMC value and antibody positive rate of tetanus in pregnant women were 0.014 (0.006-0.034) IU/ml and 53.74% (266 cases), respectively. There was no statistical difference in the antibody level and antibody positive rate among pregnant women of diphtheria and tetanus, respectively. Conclusion: The concentration of antibodies against pertussis, diphtheria, and tetanus in pregnant women are all at a low level, which is not enough to protect themselves from disease infection.

PMID:33858066 | DOI:10.3760/cma.j.cn112150-20200331-00481

Zhonghua Yu Fang Yi Xue Za Zhi. 2021 Apr 6;55(4):471-477. doi: 10.3760/cma.j.cn112150-20210203-00119.

ABSTRACT

Objective: To evaluate the clinical effects of orthokeratology lens on children with myopic anisometropia. Methods: Retrospective case series study. The data of 226 myopic anisometropia children, (10.83±1.56)years old, including 95 males and 131 females, fitted with orthokeratology(OK) lens in Beijing Tongren Hospital from June 2017 to June 2019 were collected. According to the lens wearing condition and baseline anisometropia, they were divided into four groups: group A1 with an average age of (10.68±1.66) years (bilateral OK lens wearing with low anisometropia, 1.0 D≤SE difference<2.5 D, 50 males and 61 females), group A2 with an average age of (11.24±1.38) years (bilateral OK lens wearing with moderate and high anisometropia, SE difference≥2.5 D, 10 males and 23 females), group B1 with an average age of (10.79±1.51) years (unilateral OK lens wearing with low anisometropia, 1.0 D≤SE difference<2.5 D, 17 males and 21 females) and group B2 with an average age of (10.97±1.60) years (unilateral OK lens wearing with moderate and high anisometropia, SE difference≥2.5 D, 18 males and 26 females). After wearing OK lens for one year, the changes of axial length(AL) and AL difference were observed and statistically analyzed. Results: (1) AL changes: after wearing OK-lens for one year, AL of each eye increased. In group A1, the AL of the more myopic eyes and the less myopic eyes increased by (0.20±0.21) mm and (0.24±0.22) mm respectively, and the difference was statistically significant (t=-3.208, P=0.002); in group A2, the AL growth of the more myopic eyes and the less myopic eyes were (0.04±0.11) mm and (0.17±0.14) mm, and the difference was statistically significant (t=-5.545, P<0.001). In group B1, the AL elongation of the more myopic eyes and the less myopic eyes were (0.14±0.21) mm and (0.39±0.23) mm, and in group B2, the AL growth of the more myopic eyes and the less myopic eyes were (0.11±0.14) mm and (0.54±0.24) mm, with statistically significant differences(t=-6.533, -11.643; all P<0.001). There was a linear correlation between AL elongation and age of the more myopic eyes and the less myopic eyes in group A1(corrected R²=0.208, 0.237) and group A2 (corrected R²=0.169, 0.360). There was no linear correlation of the more myopic eyes and the less myopic eyes between AL change and age or baseline myopia in group B1 (F=0.514, 1.205;P=0.602, 0.312) and group B2 (F=0.841, 0.056; P=0.439, 0.946). (2)Change of AL difference: after wearing OK lens for one year, the changes of AL difference in groupA1, A2, B1 and B2 were (-0.04±0.14) mm,(-0.13±0.13) mm,(-0.26±0.24) mm and (-0.43±0.25) mm, and the decrease of AL difference in moderate and high anisometropia groups were greater than that in low anisometropia groups (t =-3.211, -3.180; P=0.002, 0.002).There was a linear correlation between the reduction of AL difference and baseline anisometropia in group A1, A2 and B2 (corrected R²=0.099, 0.149, 0.230), and there was no linear relationship between the decrease of AL difference and the baseline anisometropia in group B1 (F=0.014, P=0.908). Conclusions: Orthokeratology could effectively control the progression of myopia and to treat anisometropia. The effect of myopia control was better in the older binocular OK lens wearers, and for the patients with greater baseline anisometropia, the treatment effect of anisometropia was better.

PMID:33858058 | DOI:10.3760/cma.j.cn112150-20210203-00119

Anaesthesia. 2021 Apr 15. doi: 10.1111/anae.15481. Online ahead of print.

NO ABSTRACT

PMID:33858027 | DOI:10.1111/anae.15481

J Infect Dis. 2021 Apr 15:jiab205. doi: 10.1093/infdis/jiab205. Online ahead of print.

ABSTRACT

BACKGROUND: Respiratory viral infections are common and potentially devastating to patients with underlying lung disease. Diagnosing viral infections often requires invasive sampling, and interpretation often requires specialized laboratory equipment. Here, we test the hypothesis that a breath test could diagnose influenza and rhinovirus infections using an in vitro model of the human airway.

METHODS: Cultured primary human tracheobronchial epithelial cells were infected with either Influenza A H1N1 or Rhinovirus 1B and compared with healthy control cells. Headspace volatile metabolite measurements of cell cultures were made at 12 h timepoints post-infection using a thermal desorption-gas chromatography-mass spectrometry method.

RESULTS: Based on 54 compounds, statistical models distinguished VOC profiles of influenza- and rhinovirus-infected cells from healthy counterparts. Area under the curve values were 0.94 for influenza, 0.90 for rhinovirus, and 0.75 for controls. A regression analysis predicted how many hours prior cells became infected with a root mean square error of 6.35 h for influenza- and 3.32 h for rhinovirus-infected cells.

CONCLUSIONS: Volatile biomarkers released by bronchial epithelial cells could not only be used to diagnose whether cells were infected, but also the timing of infection. Our model supports the hypothesis that a breath test could serve to diagnose viral infections.

PMID:33858010 | DOI:10.1093/infdis/jiab205

PLoS One. 2021 Apr 15;16(4):e0249874. doi: 10.1371/journal.pone.0249874. eCollection 2021.

ABSTRACT

BACKGROUND: Attainment of healthcare in respectful and dignified manner is a fundamental right for every woman regardless of the individual status. However, social exclusion, poor psychosocial support, and demeaning care during childbirth at health facilities are common worldwide, particularly in low- and middle-income countries. We concurrently examined how women with varying socio-demographic characteristics are treated during childbirth, the effect of women’s empowerment on mistreatment, and health services factors that contribute to mistreatment in secondary-level public health facilities in Pakistan.

METHODS: A cross-sectional survey was conducted during August-November 2016 among 783 women who gave birth in six secondary-care public health facilities across four contiguous districts of southern Sindh. Women were recruited in health facilities and later interviewed at home within 42 days of postpartum using a WHO’s framework-guided 43-item structured questionnaire. Means, standard deviation, and average were used to describe characteristics of the participants. Multivariable linear regression was applied using Stata 15.1.

RESULTS: Women experiencing at least one violation of their right to care by hospital staff during intrapartum care included: ineffective communication (100%); lack of supportive care (99.7%); loss of autonomy (97.5%); failure of meeting professional clinical standards (84.4%); lack of resources (76.3%); verbal abuse (15.2%); physical abuse (14.8%); and discrimination (3.2%). Risk factors of all three dimensions showed significant association with mistreatment: socio-demographic: primigravida and poorer were more mistreated; health services: lesser-education on birth preparedness and postnatal care leads to higher mistreatment; and in terms of women’s empowerment: women who were emotionally and physically abused by family, and those with lack of social support and lesser involvement in joint household decision making with husbands are more likely to be mistreated as compared to their counterparts. The magnitude of relationship between all significant risk factors and mistreatment, in the form of β coefficients, ranged from 0.2 to 5.5 with p-values less than 0.05.

CONCLUSION: There are glaring inequalities in terms of the way women are treated during childbirth in public health facilities. Measures of socio-demographic, health services, and women’s empowerment showed a significant independent association with mistreatment during childbirth. At the health system level, there is a need for urgent solutions for more inclusive care to ensure that all women are treated with compassion and dignity, complemented by psychosocial support for those who are emotionally disturbed and lack social support.

PMID:33858009 | DOI:10.1371/journal.pone.0249874