bluuebunny/crossref_metadata_2025_split huggingface dataset:
Local adaptation optimizes photoprotection strategies in a Neotropical legume tree under drought stress
Authors: Cordero Irene , Jiménez María Dolores , Delgado Juan Antonio , Balaguer Luis , Pueyo José J , Rincón Ana 
Published: February 2021

AbstractPhotoprotection is a plant functional mechanism to prevent photooxidative damage by excess light. This is most important when carbon assimilation is limited by drought, and as such, it entails a trade-off between carbon assimilation vs stress avoidance. The ecological adaptation of plants to local water availability can lead to different photoprotective strategies. To test this, we used different provenances of Caesalpinia spinosa (Mol.) Kuntze (commonly known as ‘tara’) along a precipitation gradient. Tara is a Neotropical legume tree with high ecological and commercial value, found in dry tropical forests, which are increasingly threatened by climate change. Morphological and physiological responses of tara provenances were analysed under three different treatments of drought and leaflet immobilization, i.e., light stress, in a common garden greenhouse experiment. Tara quickly responded to drought by reducing stomatal conductance, evapotranspiration, photochemical efficiency, carbon assimilation and growth, while increasing structural and chemical photoprotection (leaflet angle and pigments for thermal dissipation). Leaflet closure was an efficient photoprotection strategy with overall physiological benefits for seedlings as it diminished the evaporative demand and avoided photodamage, but also entailed costs by reducing net carbon assimilation opportunities. These responses depended on seed origin, with seedlings from the most xeric locations showing the highest dehydration tolerance, suggesting local adaptation and highlighting the value of different strategies under distinct environments. This plasticity in its response to environmental stress allows tara to thrive in locations with contrasting water availability. Our findings increase the understanding of the factors controlling the functional ecology of tara in response to drought, which can be leveraged to improve forecasts of changes in its distribution range, and for planning restoration projects with this keystone tree species.
The challenges and facilitators of self-management in pediatric asthma
Authors: Pité Helena , Carvalho Sara , Morais-Almeida Mário 
Published: February 2021

Purpose of review
Self-management education in asthma can dramatically reduce asthma morbidity, but specific pediatric challenges need to be addressed. The purpose of this review is to discuss the most recent and significant advances regarding self-management interventions in pediatric asthma.

Recent findings
Recent evidence supports school-based programs including asthma self-management skills for children to significantly improve asthma control. A defined theoretical intervention framework, parent involvement, child satisfaction, and running the intervention outside the child's own free time are suggested drivers of successful implementation. Real-time telemedically delivered asthma education may also improve asthma-related outcomes in children. Moreover, mobile applications supporting self-management are generally welcomed by children and parents. Current evidence supports the use of models of health behaviors change in mobile application design and content development; self-monitoring alone is ineffective but useful when coupled with decision support for proactive care.

Summary
School-based and e-health interventions are potential facilitators for the implementation of successful self-management asthma programs, providing access to large numbers of children with asthma. This supports the healthcare practitioners to work together with researchers to promote these interventions, while following current recommendations for the effective transition of children into competent and confident adults to continue to successfully self-manage their asthma.
Donation after circulatory death: opportunities on the horizon
Authors: Potter Kenneth F. , Cocchiola Brian , Quader Mohammed A. 
Published: February 2021

Purpose of review
Organ transplantation remains the gold standard therapy for many end-organ diseases. The demand for donor organs continues to grow to far exceed supply. This review summarizes recent protocols, procedures, and ethics surrounding the increased utilization of donors after circulatory death for transplantation.

Recent findings
An increasing number of centers are utilizing donation after circulatory death, and outcomes are improving. Although outcomes from donors after brain death continue to be the primary source of donation, circulatory death outcomes continue to improve approaching the level of brain death donors.

Summary
Donation after circulatory death offers a real opportunity to narrow the supply and demand issue with organ donation. Outcomes are improving, and protocols continue to evolve.
Ethical dilemmas in anesthesia mission trips
Authors: Thompson Nicole C.P. , Weinerman Zachary , Solola Jasmine 
Published: February 2021

Purpose of review
Health inequities continue to exist globally especially when it comes to surgical and anesthesia services. Due to the lack of physician anesthesiologists in low- and middle-income countries, there has been an increase in the number of medical mission trips. Although these volunteers are attempting to fulfill a need they must be mindful and remember to adhere to ethical principles as they work collaboratively with host institutions. We will review the ethical dilemmas inherent in anesthesia mission trips.

Recent findings
Physician volunteers for medical missions may cause significant harm to patients and host communities if they do not work in tandem with host institutions.

Summary
Medical missions fulfill acute medical needs and have the opportunity to make a positive contribution to host communities by fulfilling local needs and supporting educational efforts for local providers.
Pathophysiology of sepsis
Authors: Arina Pietro , Singer Mervyn 
Published: February 2021

Purpose of review
To provide a current overview of sepsis pathophysiology.

Recent findings
The emphasis on sepsis pathophysiology has moved away from the pathogen - the initiating factor - and instead is focussed upon the abnormal and exaggerated host response. Instead of targeted eradication of the infection, the host response activates or suppresses multiple downstream pathways, leading to multiple organ dysfunction.

Summary
Sepsis represents a dysregulated host response to infection leading to organ dysfunction. Here, the pathogen triggers an initial exaggerated inflammatory-immune response that leads to activation or suppression of multiple endothelial, hormonal, bioenergetic, metabolic, immune, and other pathways. These, in turn, produce the circulatory and metabolic perturbations resulting in organ dysfunction. This review will provide an overview of underlying mechanisms and propose that these processes, whereas superficially viewed as dysfunctional, may actually be adaptive/protective in the first instance, though spilling over into maladaptation/harm depending on the magnitude of the host response.
Perceptions of Signs of Addiction Among Opioid Naive Patients Prescribed Opioids in the Emergency Department
Authors: Serina Peter T. , Lank Patrick M. , Kim Howard S. , Cameron Kenzie A. , Courtney Daniel Mark , Opsasnick Lauren A. , Curtis Laura M. , Wolf Michael S. , McCarthy Danielle M. 
Published: February 2021

Objectives:
Patient knowledge deficits related to opioid risks, including lack of knowledge regarding addiction, are well documented. Our objective was to characterize patients’ perceptions of signs of addiction.

Methods:
This study utilized data obtained as part of a larger interventional trial. Consecutively discharged English-speaking patients, age >17 years, at an urban academic emergency department, with a new opioid prescription were enrolled from July 2015 to August 2017. During a follow-up phone interview 7 to 14 days after discharge, participants were asked a single question, “What are the signs of addiction to pain medicine?” Verbatim transcribed answers were analyzed using a directed content analysis approach and double coding. These codes were then grouped into themes.

Results:
There were 325 respondents, 57% female, mean age 43.8 years, 70.1% privately insured. Ten de novo codes were added to the 11 DSM-V criteria codes. Six themes were identified: (1) effort spent acquiring opioids, (2) emotional and physical changes related to opioid use, (3) opioid use that is “not needed, (4) increasing opioid use, (5) an emotional relationship with opioids, and (6) the inability to stop opioid use.

Conclusions:
Signs of addiction identified by opioid naive patients were similar to concepts identified in medical definitions. However, participants’ understanding also included misconceptions, omissions, and conflated misuse behaviors with signs of addiction. Identifying these differences will help inform patient-provider risk communication, providing an opportunity for counseling and prevention.
Initiation of Low-threshold Buprenorphine in Nontreatment Seeking Patients With Opioid Use Disorder Engaged in Hepatitis C Treatment
Authors: Hill Kristi , Nussdorf Laura , Mount Julia D. , Silk Rachel , Gross Chloe , Sternberg David , Bijole Phyllis , Jones Miriam , Kier Randy , Mccullough Dana , Mathur Poonam , Kottilil Shyam , Masur Henry , Kattakuzhy Sarah , Rosenthal Elana S. 
Published: February 2021

Objective:
The ANCHOR program offered buprenorphine treatment to people who inject drugs engaged in hepatitis C (HCV) treatment at a Washington, DC harm reduction organization. This analysis describes the program model and outcomes of the opioid care continuum at 1 year.

Methods:
Primary outcomes were initiation of buprenorphine and retention in care, defined by an active buprenorphine prescription at given time points. Secondary outcomes included treatment interruptions, reasons for treatment noninitiation and termination, buprenorphine and opiate use, and HIV risk behaviors. Buprenorphine and opiate use were measured by urine toxicology screens and HIV risk behavior was quantified using a validated survey.

Results:
Of 67 patients receiving HCV treatment not on opioid agonist therapy at baseline, 96% (n = 64) were interested and 73% (n = 49) initiated buprenorphine. Retention was 82% (n = 40), 65% (n = 32), and 59% (n = 29) at months 1, 6, and 12, respectively. Retention at 12 months was associated with self-reported engagement in routine medical care (P < 0.01), but was not associated with gender, stable housing, past opioid agonist therapy, or past overdose. Among retained patients, urine screens positive for opioids were 73% (n = 29), 56% (n = 18), and 79% (n = 23) at months 1, 6, and 12. There was a significant mean decrease in HIV risk-taking behavior scores over the treatment period, primarily driven by reduced injection frequency.

Conclusions:
Patients engaged in HCV treatment at a harm reduction organization showed a high rate of initiation of buprenorphine treatment, with retention comparable to other treatment settings. Although most patients continued using opioids on treatment, there was a reduced frequency of injection drug use, a significant driver of OUD-related risk. These data support the use of low-threshold buprenorphine access alongside HCV treatment to reduce morbidity and mortality in people with OUD.
Treatment Disruption and Childcare Responsibility as Risk Factors for Drug and Alcohol Use in Persons in Treatment for Substance Use Disorders During the COVID-19 Crisis
Authors: Huhn Andrew S. , Strain Eric C. , Jardot Jasmyne , Turner Gavin , Bergeria Cecilia L. , Nayak Sandeep , Dunn Kelly E. 
Published: February 2021

Objectives:
The novel 2019 coronavirus (COVID-19) crisis has caused considerable upheaval in the U.S. healthcare system. The current study examined patient-reported experiences in substance use disorder (SUD) treatment during the early stages of the COVID-19 crisis.

Methods:
Participants in SUD treatment were recruited via online crowdsourcing from April 14, 2020 to May 26, 2020, during the early stages of the COVID-19 crisis. Participants reported disruptions in SUD treatment, stress and anxiety caused by these disruptions on a 0-100 point visual analogue scale (VAS), stress associated with childcare responsibilities on a 0–100 VAS, current stress on the Perceived Stress Scale (PSS), anxiety symptoms on the Beck Anxiety Inventory (BAI), sleep disturbances on the Insomnia Severity Index (ISI), and whether they used drugs or alcohol during the COVID-19 crisis.

Results:
Participants (N = 240) endorsed that at least 1 SUD treatment was switched to telemedicine (63.7%), had some appointments cancelled (37.5%), or was discontinued due to COVID-19 (29.6%). Participants who did versus did not endorse drug/alcohol use reported difficulty obtaining medications to treat their SUD (OR = 2.47, 95% CI, 1.17–5.22, χ2 = 5.98, P = .016), greater scores on VAS treatment-related stress (F
1,197 = 5.70, P = .018) and anxiety (F
1,197 = 4.07, P = .045), greater VAS stress related to childcare (F
1,107 = 10.24, P = .002), and greater scores on the PSS (F
1,235 = 19.27, P < .001), BAI (F
1,235 = 28.59, P < .001), and ISI (F
1,235 = 14.41, P < .001).

Conclusions:
Providers and public health officials should work to improve continuity and quality of care during the COVID-19 crisis, with special attention on addressing childcare difficulties and providing remote methods to improve stress, anxiety, and sleep for persons in SUD treatment.
Disease Severity and Perinatal Outcomes of Pregnant Patients With Coronavirus Disease 2019 (COVID-19)
Authors: Metz Torri D. , Clifton Rebecca G. , Hughes Brenna L. , Sandoval Grecio , Saade George R. , Grobman William A. , Manuck Tracy A. , Miodovnik Menachem , Sowles Amber , Clark Kelly , Gyamfi-Bannerman Cynthia , Mendez-Figueroa Hector , Sehdev Harish M. , Rouse Dwight J. , Tita Alan T.N. , Bailit Jennifer , Costantine Maged M. , Simhan Hyagriv N. , Macones George A. ,   for the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Maternal-Fetal Medicine Units (MFMU) Network
Published: February 2021

OBJECTIVE:
To describe coronavirus disease 2019 (COVID-19) severity in pregnant patients and evaluate the association between disease severity and perinatal outcomes.

METHODS:
We conducted an observational cohort study of all pregnant patients with a singleton gestation and a positive test result for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) who delivered at 1 of 33 U.S. hospitals in 14 states from March 1 to July 31, 2020. Disease severity was classified by National Institutes of Health criteria. Maternal, fetal, and neonatal outcomes were abstracted by centrally trained and certified perinatal research staff. We evaluated trends in maternal characteristics and outcomes across COVID-19 severity classes and associations between severity and outcomes by multivariable modeling.

RESULTS:
A total of 1,219 patients were included: 47% asymptomatic, 27% mild, 14% moderate, 8% severe, 4% critical. Overall, 53% were Hispanic; there was no trend in race–ethnicity distribution by disease severity. Those with more severe illness had older mean age, higher median body mass index, and pre-existing medical comorbidities. Four maternal deaths (0.3%) were attributed to COVID-19. Frequency of perinatal death or a positive neonatal SARS-CoV-2 test result did not differ by severity. Adverse perinatal outcomes were more frequent among patients with more severe illness, including 6% (95% CI 2–11%) incidence of venous thromboembolism among those with severe–critical illness compared with 0.2% in mild–moderate and 0% in asymptomatic (P<.001 for trend across severity). In adjusted analyses, severe–critical COVID-19 was associated with increased risk of cesarean birth (59.6% vs 34.0%, adjusted relative risk [aRR] 1.57, 95% CI 1.30–1.90), hypertensive disorders of pregnancy (40.4% vs 18.8%, aRR 1.61, 95% CI 1.18–2.20), and preterm birth (41.8% vs 11.9%, aRR 3.53, 95% CI 2.42–5.14) compared with asymptomatic patients. Mild–moderate COVID-19 was not associated with adverse perinatal outcomes compared with asymptomatic patients.

CONCLUSION:
Compared with pregnant patients with SARS-CoV-2 infection without symptoms, those with severe–critical COVID-19, but not those with mild–moderate COVID-19, were at increased risk of perinatal complications.
Effect of Age at Cochlear Implantation in Educational Placement and Peer Relationships
Authors: Choo Oak-Sung , Kim Hantai , Kim You-Jeong , Roh Jimin , Jang Jeong Hun , Park Hun Yi , Choung Yun-Hoon 
Published: February 2021

Objectives:
The education and school life of children who have undergone cochlear implantation (CI) is very important and should be monitored continuously. This study assessed auditory performance in children with cochlear implants over time, along with educational placement and peer relationship, and compared the results based on the age at CI and the presence of additional disabilities.

Design:
In total, 77 children who had undergone CI at the Hearing Center in Ajou University Hospital at less than 10 years old and who were presently attending school or had already graduated from school within 3 years were enrolled in this study. All children had congenital bilateral severe or profound hearing loss at the diagnosis. They were classified based on the age at which they received CI: the “early-implanted group,” younger than 3.5 years (n = 38), and the “late-implanted group,” between 3.5 and 10 years old (n = 39).

Results:
The early-implanted group had worse short-term auditory performance than the late group, but after 2 years of the implant use, auditory performance was similar in both groups. The early and late groups did not differ significantly in terms of the proportions of children who were enrolled in a regular school (94.7% and 89.7%, respectively). However, the early-implanted group had a larger proportion of children who were enrolled in a regular school without additional needs (73.0%), compared with the late group (48.6%) (p = .034). Children with multiple disabilities showed poorer performance (word score of 57.7% and sentence score of 44.7%) than children with hearing disability only (91.8% and 87.2%, respectively), which affected full-time enrollment in regular schools. With regard to peer relationships, 19.0% of children in the early-implanted group required close observation and assistance, and 9.5% even required help and counseling. Children who underwent early CI had a high tendency toward social restraint, apathy, and over-commitment. No correlations were observed between audiological factors and the aspects of peer relationships assessed in this study.

Conclusions:
Early CI and the absence of other disabilities were the two main factors that increased the likelihood of full-time enrollment in mainstream classes at regular schools. Nevertheless, many children who underwent earlier CI still encountered difficulties in peer relationships.
Outcomes of a Minimally Invasive Approach for Congenital Vertical Talus With a Comparison Between the Idiopathic and Syndromic Feet
Authors: Hafez Mohamed , Davis Naomi 
Published: February 2021

Background:
Congenital vertical talus (CVT) is a rare congenital foot disorder. Approximately half of the affected children have associated neuromuscular syndromes which may further complicate the treatment. The traditional treatment involved extensive soft tissue and bony reconstructions. The minimally invasive method (Dobbs method/reverse Ponseti) has changed the treatment of CVT. There is significant variation of the reported outcome of this method in the current literature. In this study we report the outcome of this minimally invasive technique for treatment of CVT and compare the results of treatment in syndromic and idiopathic patients.

Methods:
Idiopathic and syndromic patients treated from CVT with minimally invasive method from 2006 till 2016 were included in this retrospective study. We reviewed the patients’ notes, radiographs and collected parents reported outcome questionnaire (Roye score) in addition to clinical examination to comprehensively report the treatment outcome.

Results:
A total of 21 patients 30 feet were included in this study. The average age of commencing treatment was 6 months (1 to 17 mo). The mean follow-up was 6.5 years (1 to 11 y). Correction of the deformities and abnormal angles were achieved in all feet. Five of the 17 syndromic feet had recurrence while no recurrence was reported in any if the 13 idiopathic feet. At the time of the index procedure no supplementary procedures were required. The average arc of motion for foot ankle dorsiflexion and plantar flexion was 30 degrees. Patients with idiopathic CVT had a mean the Roye score of 11 while syndromic patients had a mean score of 22.

Conclusion:
The minimally invasive method is a valuable option for treatment of CVT. Idiopathic patients had no recurrence and better functional scores compared syndromic patients. There was no requirement for supplementary procedures such as tibialis anterior transfer or anterolateral release at the time of the initial surgery.

Level of Evidence:
Level IV—case series.
Development and internal validation of China mortality prediction model in trauma based on ICD-10-CM lexicon: CMPMIT-ICD10
Authors: Wang Yan-Hua , Wang Tian-Bing , Zhang Zi-Xiao , Liu Hui-Xin , Xu Ting-Min , Wang Chu , Jiang Bao-Guo 
Published: February 2021

Abstract

Background:
Models to predict mortality in trauma play an important role in outcome prediction and severity adjustment, which informs trauma quality assessment and research. Hospitals in China typically use the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) to describe injury. However, there is no suitable prediction model for China. This study attempts to develop a new mortality prediction model based on the ICD-10-CM lexicon and a Chinese database.

Methods:
This retrospective study extracted the data of all trauma patients admitted to the Beijing Red Cross Emergency Center, from January 2012 to July 2018 (n = 40,205). We used relevant predictive variables to establish a prediction model following logistic regression analysis. The performance of the model was assessed based on discrimination and calibration. The bootstrapping method was used for internal validation and adjustment of model performance.

Results:
Sex, age, new region-severity codes, comorbidities, traumatic shock, and coma were finally included in the new model as key predictors of mortality. Among them, coma and traumatic shock had the highest scores in the model. The discrimination and calibration of this model were significant, and the internal validation performance was good. The values of the area under the curve and Brier score for the new model were 0.9640 and 0.0177, respectively; after adjustment of the bootstrapping method, they were 0.9630 and 0.0178, respectively.

Conclusions:
The new model (China Mortality Prediction Model in Trauma based on the ICD-10-CM lexicon) showed great discrimination and calibration, and performed well in internal validation; it should be further verified externally.