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tRNA Anticodon Cleavage by Target-Activated CRISPR-Cas13a Effector
Get PDFType VI CRISPR-Cas systems are among the few CRISPR varieties that target exclusively RNA. The CRISPR RNA–guided, sequence-specific binding of target RNAs, such as phage transcripts, activates the type VI effector, Cas13. Once activated, Cas13 causes collateral RNA cleavage, which induces bacterial cell dormancy, thus protecting the host population from the phage spread. We show here that the principal form of collateral RNA degradation elicited by Leptotrichia shahii Cas13a expressed in Escherichia coli cells is the cleavage of anticodons in a subset of transfer RNAs (tRNAs) with uridine-rich anticodons. This tRNA cleavage is accompanied by inhibition of protein synthesis, thus providing defense from the phages. In addition, Cas13a-mediated tRNA cleavage indirectly activates the RNases of bacterial toxin-antitoxin modules cleaving messenger RNA, which could provide a backup defense. The mechanism of Cas13a-induced antiphage defense resembles that of bacterial anticodon nucleases, which is compatible with the hypothesis that type VI effectors evolved from an abortive infection module encompassing an anticodon nuclease
Complications Following Hemivertebrectomy for Congenital Scoliosis
Get PDFIntroduction:
Hemivertebrae are rare congenital anomalies that can cause severe scoliosis requiring surgical correction. We aimed to determine whether severity of deformities is associated with more long-term surgical complications following surgical correction.
Methods:
We performed a retrospective, single-institution review on patients who underwent hemivertebrectomy and spinal fusion for congenital scoliosis between 2008-2020. We extracted pertinent data on demographics, radiographic parameters, operative details, and complication rates. Subgroup analyses were also done by complication severity, deformity complexity, and construct length.
Results:
In our series, 30 patients underwent hemivertebrectomy and fusion. Mean age was 9±4.2 years and there was 2:1 male preponderance, with median follow-up of 74.5 months. 43% of patients had complex deformities, defined as ≥3 bony abnormalities on X-ray. In cases of multiple hemivertebrae (n=2), only the dominant lesion was excised. Half the patients underwent long segment fixation (\u3e5 levels), which were chosen for larger deformities, and resulted in similar coronal and sagittal balance to shorter constructs. Mean EBL was 533.7±502.0 mL. Three patients had intraoperative neuromonitoring changes, which subsequently improved with minimal or no long-term deficits. Surgical correction improved the major coronal Cobb angle and deformity angular ratio (both p
Conclusions:
Surgical and long-term complication rates were 17% and 7%, respectively. While no specific risk factors for complications were found in our cohort, hemivertebrectomy resection and correction of congenital scoliosis should be approached with caution and careful planning
Diabetes Health Education for South Jersey Communities
Get PDFDiabetes is a chronic health condition that hinders the body’s metabolic process using insulin to maintain glycemic homeostasis. It is prevalent worldwide, with about 10% of the global adult population affected. Socio-economic and cultural factors and determinants make diabetes and diabetes management more of a health risk for certain populations rather than others. The prevalence of diabetes in the United States is higher than the global average and the risk factors disproportionately affect disadvantaged communities.
This study was designed to investigate health disparities in diabetes among a diverse population sample. The study included researching the disparities of diabetes patients in South Jersey and designing a service project to help disadvantaged communities.
Demographic data from the 2023 census shows that the southern New Jersey counties with higher deaths due to diabetes are also counties with higher percentages of minority populations. Salem and Cumberland county had the highest number of deaths due to diabetes (22 and 28.8 per 100,000, respectively). Both counties also had higher populations of African Americans and Hispanics compared to the other counties.
Diabetes can lead to various complications if not properly managed, including heart disease, stroke, kidney damage, nerve damage, and vision problems. As a result, it is critical for people with diabetes to frequently check their blood sugar levels, maintain a nutritious diet, get regular exercise, take their medications as directed, and see doctors on a regular basis. Patients with diabetes can increase quality of life if detected and managed early
Efficacy of Osteopathic Manipulative Medicine as a Non-Pharmacological Approach for Alleviating Pain and Muscle Stiffness in Patients with Multiple Sclerosis and a Comparison to Conventional Medical Interventions
Get PDFMultiple Sclerosis (MS) is a progressive neurological condition characterized by a range of debilitating symptoms, including muscle stiffness, fatigue, spasticity, tremors, and gait disturbance. Traditional treatments often face adherence challenges and escalating costs, prompting the exploration of alternative interventions like Osteopathic Manipulation Techniques (OMT). While the effectiveness of OMT in MS remains underexplored, initial studies suggest promising outcomes, such as improved mobility, reduced fatigue, and enhanced range of motion. Specifically, indirect OMT techniques like counterstain, myofascial release, and muscle energy techniques have shown efficacy in addressing muscle tension, spasticity, and gait abnormalities. Integrating OMT into MS management may offer a holistic approach to symptom alleviation, potentially reducing the reliance on symptom-managing medications. However, challenges exist in standardizing OMT practices and gathering objective data due to the subjective nature of treatment and varying scopes of practice globally. Despite these limitations, OMT presents a compelling avenue for enhancing the quality of life for individuals with MS by targeting symptoms at their root cause, thus warranting further investigation and integration into comprehensive treatment strategies
Evaluating the Prevalence of Postpartum Substance Use in South Jersey
Get PDFThe goal of this study was to evaluate the prevalence of substance use among women who experience postpartum depression. Looking at South Jersey women in particular, we aimed to compare the rates of women who began to engage in substance use after undergoing labor within the past one year who are covered by private health insurance versus those with Medicaid coverage. A retrospective chart review was performed, and although the small sample size limited our attempts at data analysis, it revealed that there is work to be done in this field. There needs to be methods in reducing the stigma for postpartum women in seeking care and allowing them to have appropriate support from their physicians in their postpartum period
Impact of Diabetic Education on Reducing Hospital Readmission Rates: A Literature Review of Adults with Diabetes
Get PDFAccording to 2018 data from the Diabetes Institute Foundation, adults in the U.S. diagnosed with diabetes accounted for 17 million emergency department visits. The readmission rate for patients with diabetes far exceeds the general readmission rates for hospitalized patients. While there is recognition of the need for diabetic education to reduce hospital readmissions, optimizing long-term self-management of diabetics remains a focus of ongoing research
Interactive Distraction Techniques Versus Midazolam in Anxiolysis In Pediatric Patients: A Systematic Review and Meta-Analysis
Get PDFBackground: Many pediatric patients experience high levels of anxiety prior to undergoing surgery. Midazolam is currently one of the most commonly used sedative drugs in the pediatric preoperative environment. A number of studies have evaluated the use of non-pharmacological methods of relaxing pediatric patients prior to surgery, known as ‘Interactive Distraction’. These techniques involve using various methods of distracting the child from the preoperative anesthetic procedures. Some examples of these methods involve giving the patient an iPad with which they can play video games. There have yet to be any systematic reviews comparing the usage of Midazolam alone against utilizing interactive distraction alone techniques to mitigate pediatric anxiolysis in the preoperative setting. We hypothesize that interactive distraction could be noninferior in reducing anxiety levels in these patients.
Purpose: This systematic review and meta analysis compared the preoperative anxiolytic effects of Midazolam to interactive distraction techniques on a pediatric population.
Methods: The systematic review and meta analysis followed the 2020 PRISMA guidelines. Six online databases were surveyed (Pubmed, Embase, Scopus, Cochrane, Web of Science). The analysis included randomized controlled trials (RCTs) in which pediatric patients received .3 mg/kg Midazolam alone or interactive distraction. Patient anxiety levels were measured using the modified Yale Perioperative Anxiety Scale (myPAS). MyPAS scores were evaluated at two distinct time marks, the first being arrival to the surgical ward whilst the other time mark measured was during induction of anesthesia. Two RCTs fit the inclusion criteria for the review, yielding 217 distinct evaluations. The average patient age was 6.79 ± 2.13.
Results: The results portray clinically significant results as there was a low, but apparent difference in mean effect size with a difference of Cohen’s d = 0.21, in favor of utilizing the Midazolam. However, there was no statistical significance (p = 0.57) between utilizing Midazolam alone versus utilizing the interactive distraction techniques.
Discussion: Utilization of .3 mg/kg Midazolam had clinically superior anxiolysis compared to the interactive distractions. A main limitation of our study is the relatively small sample size of 217 patients. Conducting additional RCTs with larger sample sizes would be beneficial in reinforcing our findings
Investigating Risk Factors Contributing to the High Incidence of COVID-19 Among the Diné People of the Navajo Nation
Get PDFBackground: COVID-19 became international news in December 2019 and subsequently impacted global health. The research shows that the Diné people of the Navajo Nation were one of the most severely impacted populations¹. The Navajo Nation is a region spanning Arizona, New Mexico, and Utah that is composed of North American indigenous people known as the Diné. Purpose: To explore the risk factors contributing to the increased rates of COVID-19 infection and severity of infection among the Diné people. Methods: This literature review research process utilized PubMed and JAMA to find scholarly articles on this topic. Search terms included: Navajo, Diné, COVID-19, respiratory illness, health disparity, healthy equity, vaccine, nutrition, smoking, healer, medical mistrust, and resources. Results: The findings of this review show that factors that contributed to the high incidence of COVID-19 within the Diné population include high rates of co-morbid conditions, lack of access to resources, and social determinants of health rooted in the history of the Navajo Nation. These results may be limited by underreporting of the American Indian population\u27s health and by avoidance of the healthcare system by the Diné. Conclusion: The results in this paper highlight the importance of addressing fundamental inequities that exist in society to lessen their impact on health outcomes of vulnerable populations
Is There an Association Between Living in a Rural Area and the Incidence of Postoperative Complications or Hospital Readmissions Following Left Ventricular Assist Device (LVAD) Implantation, Compared to Urban LVAD Recipients?
Get PDFBackground: Left ventricular assist devices (LVADs) are utilized as a therapeutic option for patients with end-stage heart failure. While LVAD implantation can significantly improve survival rates and quality of life, the procedure is not without risks, and postoperative complications are common. This review aims to investigate whether there is an association between living in a rural area and the incidence of postoperative complications or hospital readmissions following LVAD implantation, compared to urban LVAD recipients.
Methods: A comprehensive review of the literature was conducted, examining studies that compared postoperative outcomes between rural and urban LVAD recipients. Data were extracted on adverse events, hospitalizations, and mortality rates, with a focus on the impact of geographic location on these outcomes.
Results: The review found that rural LVAD recipients may be at a higher risk for certain postoperative complications, such as gastrointestinal bleeding, ventricular arrhythmias, LVAD complications, and stroke. Rural patients also had higher instances of emergency department visits and hospital readmissions. Despite these challenges, survival rates and heart transplantation outcomes at 1 year were similar between rural and urban recipients. However, rural patients exhibited a higher driveline infection rate at 1 year.
Conclusion: The findings of this review suggest that rural residency may be associated with an increased risk of certain postoperative complications and hospital readmissions following LVAD implantation. These results highlight the need for tailored healthcare strategies to address the unique challenges faced by rural LVAD recipients. Further research is necessary to fully understand the relationship between geographic location and LVAD outcomes, and to develop interventions that can improve postoperative care for this vulnerable populatio
Rocky Mountain High Titer: An Unusual Delay In Surgical Clearance
Get PDFRocky Mountain Spotted Fever, carried by a variety of ticks, is classically caused by Ricksettsia rickettsii, but may be clinically indistinguishable from other bacteria in the same family. A 47 year old female presented in December for presurgical clearance due to fever, petechial rash on the thighs and trunk, and ecchymoses on the forearms, gluteal region, and toes; additional symptoms included arthralgia in bilateral lower limbs. Bacterial infection was suspected and empirical doxycycline was initiated pending specific PCR testing. Patient adherence was unclear at the followup visit, so IV ceftriaxone was initiated and repeated immunoglobulin testing was ordered to follow her course. Her symptoms waxed and waned over the next several weeks, but ultimately improved and resolved over the next two months, at which point she was successfully cleared for surgery. This case was unusual as she presented in December but disease prevalence typically wanes by August. She was evaluated by rheumatology and dermatology for arthralgia and rash prior to presentation to infectious disease service, but prior treatment was unsuccessful; a missed opportunity to prevent delay in surgery and potential sequelae of long-term infectious vasculitis. As changes in climate increase host range for the variety of vectors, geographic range and temporal duration is also expected to increase, and so it should be considered in the differential more frequently