Explore the vast range of titles available.

The differential spread and impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing Coronavirus Disease 2019 (COVID-19), across regions is a major focus for researchers and policy makers. Africa has attracted tremendous attention, due to predictions of catastrophic impacts that have not yet materialized. Early in the pandemic, the seemingly low African case count was largely attributed to low testing and case reporting. However, there is reason to consider that many African countries attenuated the spread and impacts early on. Factors explaining low spread include early government community-wide actions, population distribution, social contacts, and ecology of human habitation. While recent data from seroprevalence studies posit more extensive circulation of the virus, continuing low COVID-19 burden may be explained by the demographic pyramid, prevalence of pre-existing conditions, trained immunity, genetics, and broader sociocultural dynamics. Though all these prongs contribute to the observed profile of COVID-19 in Africa, some provide stronger evidence than others. This review is important to expand what is known about the differential impacts of pandemics, enhancing scientific understanding and gearing appropriate public health responses. Furthermore, it highlights potential lessons to draw from Africa for global health on assumptions regarding deadly viral pandemics, given its long experience with infectious diseases.

Caretaking stability in the early life environment supports neurobehavioral development, while instability and neglect constitute adverse environments that can alter maturational processes. Research in humans suggests that different types of early life adversity (ELA) can have differential effects on caretaker relationships and later cognitive and social development; however, identifying mechanistic underpinnings will require animal models with translational validity. Two common rodent models, maternal separation (MS) and limited bedding (LB), influence the mother-infant relationship during a critical window of development. We hypothesized that these paradigms may affect the development of communication strategies on the part of the pup. Ultrasonic vocalizations (USVs) are a care-eliciting mechanism and ethologically relevant response to stressors in the rat pup. USV emission rates and acoustic parameters change throughout early development, presenting the opportunity to define developmental milestones in USVs that would reflect neurobehavioral aberrations if disrupted. This study investigated the effects of MS or LB on the dam-pup relationship by quantifying pup USVs, maternal behavior, and the relationship between the two. First, we used a generalized additive model approach to establish typical developmental trajectories of USV acoustic properties and determine windows of change in MS or LB rearing. Additionally, we quantified maternal behaviors and the predictability of maternal care sequences using an entropy rate calculation. MS and LB each shifted the developmental trajectories of USV acoustic parameters and call types in a sex-specific manner. MS more often impacted male USVs, while LB impacted female USVs. MS dams spent more time passive nursing, and LB dams spent more time on the nest. The predictability of maternal care was associated with the rate of USV emissions exclusively in females. Taken together, findings demonstrate sex- and model-specific effects of rearing environments on a novel developmental trajectory involving the mother-infant relationship, facilitating the translation of animal ELA paradigms to assess later-life consequences.

Introduction: We aimed to describe imaging characteristics in stroke hospitalizations with nonspecific/unspecified vascular region subcodes and to assess for systematic bias in the use of these subcodes. Methods: We captured first ischemic stroke hospitalizations from 2018 to 2022 at a single stroke center. We reviewed imaging studies to classify a gold standard of vascular region blinded to ICD-10 subcodes in 200 randomly selected hospitalizations: 100 with nonspecific/unspecified subcodes and 100 with specific subcodes oversampled for posterior circulation strokes. We assessed for systematic bias in the use of nonspecific/unspecified subcodes using multilevel logistic regression, with primary provider included as a random intercept. Separate models were applied to the full population of strokes and to those that underwent imaging review. Results: We identified 5,234 first ischemic stroke hospitalizations, of which 2,224 (43%) received a nonspecific/unspecified vascular region subcode. Out of the 100 ICD-10 nonspecific/unspecified stroke location cases that underwent imaging review, 85 had acute infarcts in specific locations: 45 anterior circulation, 40 posterior circulation, and 15 with no infarct. Factors associated with the use of nonspecific/unspecified subcodes were low NIHSS scores and non-neurological specialist but not anterior versus posterior vascular distribution. The proportion of variance explained by the models was modest (pseudo-R2 0.16). Conclusions: Most ischemic stroke hospitalizations coded with nonspecific/unspecified ICD-10 vascular region subcodes had imaging-confirmed infarcts in specific vascular regions. These strokes tended to have a lower NIHSS and were overrepresented by posterior circulation lesions. The modest variance explained in the use of nonspecific/unspecified codes indicates that much of the coding is influenced by random variation or unmeasured factors. Future studies in other healthcare systems are needed to verify these findings and evaluate for other predictors. Researchers using these subcodes should recognize the limitations and incorporate sensitivity analyses to evaluate potential bias in results.

ObjectivesLeishmaniasis poses a significant public health problem in Kenya, where effective case management and treatment rely on accurate diagnosis. This review aims to summarise the research landscape on leishmaniasis diagnostics in Kenya and identify gaps.DesignThis scoping review expands a previously published scoping review on leishmaniasis in Kenya to further analyse studies focusing on diagnostics. The field of diagnostics was chosen because of recent pushes for novel tools and because of the role timely diagnosis plays in disease elimination. A comprehensive search of PubMed, Embase via Embase.com, Web of Science Core Collection, the Cochrane Library, ClinicalTrials.gov, WHO ICTRP and the Pan African Clinical Trials Registry was conducted, covering studies up to 5 January 2024.ResultsAfter dual, blind screening with conflict resolution by a third reviewer, 41 studies were included in the review. These studies examined a range of diagnostic tools; however most were assessed in one or few studies, and none evaluated real-time PCR. Additional gaps in the research landscape include a lack of diagnostics for cutaneous leishmaniasis and post-kala-azar dermal leishmaniasis in Kenya, outdated literature surrounding the Direct Agglutination Test and randomised trials for any diagnostic tool.ConclusionsFuture research should focus on solidifying the validity and reliability of diagnostic tools in the Kenyan context and updating previous work.

ObjectivesVector control is imperative for eliminating leishmaniasis as a public health problem in Kenya. As elimination efforts expand in East Africa, it is crucial to understand the current research landscape. To address that need and identify gaps, a scoping review was conducted to characterise the landscape of leishmaniasis vector research in Kenya.DesignBuilding on a previously published scoping review by this team, we updated database searches in PubMed, Embase via Embase.com, Web of Science Core Collection, the Cochrane Library, ClinicalTrials.gov, WHO International Clinical Trials Registry Platform (ICTRP) and the Pan African Clinical Trials Registry to incorporate literature up to 4 January 2024 and focused on vector-related papers. Studies classified as ‘prevention’ in the original scoping review were included due to overlapping definitions.ResultsA total of 95 studies were included in the analysis. Although a wide range of sandfly species have been documented, most of the research is outdated, having taken place 20–40 years ago. Existing studies are mostly epidemiological with little focus on basic and clinical research. There are also no studies on post-kala-azar dermal leishmaniasis despite its potential contribution to the disease transmission cycle. The geographical scope of the research is largely limited to traditional transmission foci with little attention to new disease hotspots such as North Eastern Kenya.ConclusionsThese research gaps need to be addressed to better inform the country’s leishmaniasis prevention and vector control strategy.

Stress-induced islet graft loss during the peri-transplantation period reduces the efficacy of islet transplantation. In this prospective, randomized, double-blind clinical trial, we evaluated the safety and efficacy of 60 mg/kg human alpha-1 antitrypsin (AAT) or placebo infusion weekly for four doses beginning before surgery in chronic pancreatitis (CP) patients undergoing total pancreatectomy and islet autotransplantation (TP-IAT). Subjects were followed for 12 months post-TP-IAT. The dose of AAT was safe, as there was no difference in the types and severity of adverse events in participants from both groups. There were some biochemical signals of treatment effect with a higher oxygen consumption rate in AAT islets before transplantation and a lower serum C-peptide (an indicator of islet death) in the AAT group at 15 min after islet infusion. Findings per the statistical analysis plan using a modified intention to treat analysis showed no difference in the C-peptide area under the curve (AUC) following a mixed meal tolerance test at 12 months post-TP-IAT. There was no difference in the secondary and exploratory outcomes. Although AAT therapy did not show improvement in C-peptide AUC in this study, AAT therapy is safe in CP patients and there are experiences gained on optimal clinical trial design in this challenging disease.

Introduction and Objectives: La Clínica Latina is a free clinic that strives to meet the healthcare needs of the Spanish-speaking population of Franklin County, Ohio, including metropolitan Columbus. As a student-run free clinic, care is provided each week by volunteer medical students and resident physicians under the administrative leadership of the medical student board and clinical supervision of licensed physicians. Patients served by the clinic have a multitude of chronic health conditions, which are managed by clinic volunteers through the delivery of over 1500 appointments per year. In order to better serve the rapidly growing patient population, this study describes the delivery and results of an assessment aimed at understanding the needs that are being met sufficiently at the clinic and what pitfalls still exist in the clinic’s provision of care. Methods: By delivering a survey inquiring about the experiences of patients at La Clínica Latina, clinic workflow can be optimized for the provision of patient-centered care. Results: Insights collected from a convenience sample of 30 patients demonstrate mobile phone use as the primary mode of communication with clinic volunteers, previously under-appreciated musculoskeletal health concerns, longer than desired wait times after check-in, and variable experiences of health literacy by patient gender. Conclusion: By addressing each of these insights in updates to clinic workflow, La Clínica Latina may prove to become an even more useful resource to the region’s growing Hispanic population.

Background. Restless leg syndrome (RLS) is a common neurological condition that manifests as creeping, nonpainful urges to move lower extremities and is relieved with movements of the legs. RLS is associated with comorbidities such as gastric surgery, diabetes mellitus, uremia, and iron deficiency anemia, and it is misdiagnosed in many cases. Drugs like levodopa, ropinirole, pramipexole, cabergoline, and pergolide that target the dopaminergic system have been traditionally used to treat symptoms of RLS. α2-adrenoceptor (α2-AR) agonists, like clonidine and dexmedetomidine, have also been reported to show improvement of RLS symptoms during sedation. Specific Aim. This case report suggests that dexmedetomidine may have worsened RLS during sedation in a 71-year-old male with no prior diagnosis of RLS or reported symptoms. The patient had a procedure for right first metatarsophalangeal joint (MTPJ) fusion, with second digit proximal interphalangeal joint (PIPJ) arthrodesis, and flexor tendon transfer due to pain on walking and failing conservative therapy. He underwent intravenous sedation/monitored anesthesia care (MAC) with propofol, dexmedetomidine, and a peripheral regional block for intraoperative anesthesia and postoperative analgesia. During the surgery, the patient experienced continuous bilateral leg movement, unpredictable, and unrelated to surgical stimulation or level of consciousness within 5 minutes of administration of dexmedetomidine. The patient tolerated the procedure, and the unpredicted leg movement was managed by the surgeons intraoperatively. Conclusion. Although no previous literature exists and mechanisms are unclear, this case report hypothesizes that dexmedetomidine may contribute to worsening RLS symptoms.

BackgroundFemales routinely receive bupivacaine for obstetric and regional anesthesia. An accidental overdose of bupivacaine can result in cardiotoxicity and cardiac arrest. Intralipid (ILP) rescues bupivacaine-induced cardiotoxicity in male rats. However, bupivacaine cardiotoxicity and ILP rescue have not been studied in non-pregnant and late-pregnant female rats. Here, we tested the hypothesis that an appropriate dose of ILP would rescue non-pregnant and late-pregnant rats from bupivacaine-induced cardiotoxicity.MethodsNon-pregnant ( n = 6) and late-pregnant ( n = 7) female rats received intravenous bupivacaine (10-mg/kg bolus) to induce asystole. Resuscitation with 20% ILP (5-ml/kg actual body weight, single bolus, and 0.5-ml/kg/min maintenance) and chest compressions were continued for 10-min. Serial heart rate (HR), left ventricular ejection-fraction (LVEF%), and LV-fractional shortening (LVFS%) were recorded at baseline and 10-min after bupivacaine-induced cardiac arrest. Data are mean ± SD followed by 95% CI. P -values < 0.05 were considered statistically significant.ResultsAll rats developed cardiac arrest within a few seconds after bupivacaine. All non-pregnant rats were successfully rescued by ILP, with a HR of 280 ± 32 bpm at baseline vs. 212 ± 18 bpm at 10-min post ILP ( p < 0.01), LVEF of 70 ± 6% vs. 68 ± 5% ( p = ns), and LVFS of 41 ± 5% vs. 39 ± 4% ( p = ns). Interestingly, 6 out of 7 late-pregnant rats did not recover with ILP. Baseline HR, LVEF and LVFS for late-pregnant rats were 330 ± 40 bpm, 66 ± 5% and 38 ± 4%, respectively. At 10-min post ILP, the HR, LVEF, and LVFS were 39 ± 102 bpm ( p < 0.0001), 8 ± 22% ( p < 0.0001), and 5 ± 12% ( p < 0.001), respectively.ConclusionsILP successfully rescued bupivacaine-induced cardiac arrest in non-pregnant rats, but failed to rescue late-pregnant rats.

To heal with plants is not only to engage a particular medicinal material, but to enter into a conversation with a different form of life. Traditional Western Herbalists in North America relate with plant life in this way as they enact works of healing. In order to do so, they mobilize modes of thinking from the Western tradition that have been suppressed in modernity. Their practice is not nostalgic or backward-looking. They maintain that these nearly-forgotten tools have meaningful relevance in the contemporary, and they place these tools in generative dialogue with emerging science and social theory. Herbalists' medical methods reveal a range of embodied relations in the clinic that are less visible using biomedical tools alone, rendering these relations available for treatment. As medical encounters are also deep engagements with subjectivity, this kind of care simultaneously makes available a range of modes of being, such as relationships with plants. Through their healing work, herbalists regularly bridge the nature-culture divide that has characterized Western modernity, producing a subject capable of seeing to some degree outside of modern Western myths and forms of power. In this way, herbal medicine functions as a mode of ecological subjectification, orienting practitioners and clients toward an anticapitalist and anarchist eco-politics of partnership between people and plants.