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Abstract The relation of the pelvis to the spine has previously been overlooked as a contributor to sagittal balance. However, it is now recognized that spinopelvic alignment is important to maintain an energy-efficient posture in normal and disease states. The pelvis is characterized by an important anatomic landmark, the pelvic incidence (PI). The PI does not change after adolescence, and it directly influences pelvic alignment, including the parameters of pelvic tilt (PT) and sacral slope (SS) (PI = PT 1 SS), overall sagittal spinal balance, and lumbar lordosis. In the setting of an elevated PI, the spineadapts with increased lumbar lordosis. To prevent or limit sagittal imbalance, the spine may also compensate with increased PT or pelvic retroversion to attempt to maintain anupright posture. Abnormal spinopelvic parameters contribute to multiple spinal conditions including isthmic spondylolysis, degenerative spondylolisthesis, deformity, and impact outcome after spinal fusion. Sagittal balance, pelvic incidence, and all spinopelvic parameters are easily and reliably measured on standing, full-spine (lateral) radiographs, and it is essential to accurately assess and measure these sagittal values to understand their potential role in the disease process, and to promote spinopelvic balance at surgery. In this article, we provide a comprehensive review of the literature regarding the implications of abnormal spinopelvic parameters and discuss surgical strategies for correction of sagittal balance. Additionally, the authors rate and critique the quality of the literature cited in a systematic review approach to give the reader an estimate of the veracity of the conclusions reached from these reports.

Objective Systemic sclerosis (SSc) is known to exhibit significant epidemiologic and clinical variation. This study aimed to describe the clinical and epidemiologic characteristics of SSc in Alaska Native and American Indian (AN/AI) individuals in Alaska. Methods Adults with a potential diagnosis of SSc were identified through an electronic health record query for SSc‐related codes from 2012 to 2019 in the participating tribal health organizations in the Alaska Tribal Health System (ATHS). Detailed medical record ion was performed to confirm diagnoses and clinical characteristics, including demographics, SSc subtype, organ involvement, serologic test results, and medications. The denominator for prevalence was the 2019 ATHS user population aged ≥18 years. Results The age‐adjusted prevalence of SSc was 354 (95% confidence interval [CI] 241–504) per 1,000,000 adults overall, 503 (95% CI 323–752) per 1,000,000 in women, and 188 (95% CI 82–379) per 1,000,000 in men. Of the 36 adults identified with SSc, the mean age at diagnosis was 59.9 years (median 62 years), with a female predominance (28 [77.8%]; female‐to‐male ratio 3.5:1). Diffuse SSc prevalence was 95 (95% CI 44–184), and limited SSc prevalence was 258 (95% CI 164–391) per 1,000,000. Although most clinical features appear to be similar to other populations, a high prevalence of pulmonary arterial hypertension, gastrointestinal manifestations, and telangiectasias were notable. Conclusion This is the first study to describe the epidemiology and clinical characteristics of SSc in AN/AI individuals in Alaska. The prevalence, average age at onset, female predominance, and most clinical features are generally similar to those in studies of SSc in other populations.

Stem cell-based therapies have shown promise in adults with ischemic cardiomyopathy and children with congenital heart diseases, especially those without available therapeutic options. Human neonatal mesenchymal stem cells (nMSCs) have greater regenerative potential than adult stem cells. To describe our experience with a novel catheter system for transcoronary delivery of cell-based therapies (CIRCULATE catheter) in the intra-coronary delivery of nMSCs in a swine acute myocardial infarct model. A newly developed catheter system (CIRCULATE catheter) with several unique features, including an expandable intra-coronary reservoir with spirally placed side holes of varying diameter, was used. nMSCs together with their secretome were used for the treatment. Pigs underwent myocardial infarction by inflating a 2.5 mm angioplasty balloon in the left anterior descending artery for 60 min. After reperfusion, stem cell therapy or placebo was administered via the novel catheter. TTE was performed at baseline, 1 h after the procedure, and before the euthanasia. Troponin blood concertation was evaluated at baseline, and after 48 h. The heart was harvested, sliced, and stained with triphenyl tetrazolium chloride (TTC). Infarct size to area-at-risk ratio was calculated. Troponin was assessed at baseline and after 48 h. Thirty-nine pigs were operated with the mortality rate of 5.13% (exclusively malignant arrhythmia). Infarct size to area-at-risk ratio was significantly lower in the treatment group. Treated animals had higher ejection fraction than controls. Intra-coronary delivery of neonatal mesenchymal stem cells reduces the infarct size and restores myocardial function in a swine model. The novel catheter system (CIRCULATE catheter) tested in this study was safe and effective in transcoronary cell delivery of human neonatal mesenchymal stem cells.

Abstract The relation of the pelvis to the spine has previously been overlooked as a contributor to sagittal balance. However, it is now recognized that spinopelvic alignment is important to maintain an energy-efficient posture in normal and disease states. The pelvis is characterized by an important anatomic landmark, the pelvic incidence (PI). The PI does not change after adolescence, and it directly influences pelvic alignment, including the parameters of pelvic tilt (PT) and sacral slope (SS) (PI = PT 1 SS), overall sagittal spinal balance, and lumbar lordosis. In the setting of an elevated PI, the spineadapts with increased lumbar lordosis. To prevent or limit sagittal imbalance, the spine may also compensate with increased PT or pelvic retroversion to attempt to maintain anupright posture. Abnormal spinopelvic parameters contribute to multiple spinal conditions including isthmic spondylolysis, degenerative spondylolisthesis, deformity, and impact outcome after spinal fusion. Sagittal balance, pelvic incidence, and all spinopelvic parameters are easily and reliably measured on standing, full-spine (lateral) radiographs, and it is essential to accurately assess and measure these sagittal values to understand their potential role in the disease process, and to promote spinopelvic balance at surgery. In this article, we provide a comprehensive review of the literature regarding the implications of abnormal spinopelvic parameters and discuss surgical strategies for correction of sagittal balance. Additionally, the authors rate and critique the quality of the literature cited in a systematic review approach to give the reader an estimate of the veracity of the conclusions reached from these reports.

Hypoplastic left heart syndrome (HLHS) is one of the most complex forms of congenital heart disease, characterized by an underdeveloped left ventricle, outflow tract and aorta. Current surgical and medical treatment for this disease remains palliative. As a result of the multi-step surgery, the right ventricle plays the role of the systemic ventricle, which inevitably leads to its failure. There is an urgent need to develop new treatments to ameliorate the right ventricle failure. Stem cell therapy may represent a new approach to single ventricle pathology. Great numbers of small and large animal studies have proven this therapy to be safe and effective in hypoplastic left heart syndrome. Several clinical trials have been designed to investigate the potential of mesenchymal stem cells in univentricular heart physiology. With increasing evidence, understanding of the mechanism of stem cells' action has shifted from the concept of differentiation into various heart cell types to paracrine activity playing the major role. The secretome of stem cells has been identified as their functional unit. In this review, we present different types of stem cells used in single ventricle diseases in children as well as their preclinical investigations. We also summarize clinical applications of stem cells in children with HLHS.

Pain is a complex multidimensional experience that integrates sensory and emotional components, presenting significant challenges for accurate assessment in clinical practice. Traditional methods of pain evaluation rely on subjective self-reporting and each individual’s ability to communicate their pain experience. In light of the effect of pain on the Autonomic Nervous System, researchers are interested in developing objective assessment techniques using physiological signals. This paper outlines the latest advances in pain biomarkers and machine learning methods for assessing pain using physiological signals, highlighting the growing interest and unmet demand in this area. A comprehensive literature review was conducted, covering studies between 2014 and 2024. The discussion is organised into two areas: first, an analysis of the variations in signal feature behaviour across different pain types, and second, a review of the current state-of-the-art models for pain assessment developed using classical machine learning and deep learning techniques.

•There is a shortage of solid organs available for transplantation and measures are needed to increase donor pools.•Neurocritical care providers can influence pools as principal clinicians in stroke and TBI, leading causes of brain death.•Every year a large proportion of organs is lost due to brain-dead donor hemodynamic instability.•Thyroid hormone is an adjunctive therapy that has shown great promise in treating donor cardiovascular instability.•Multi-center controlled trials are needed to further elucidate the benefits of thyroid hormone on solid organ transplantation. Solid organ transplantation has become a mainstay in the contemporary management of end-stage organ failures fueled by advances in immunosuppression, intensive care and surgical technology. Every year, a vast number of transplantable organs is lost on account of hemodynamic instability in potential brain-dead organ donors. Because of a growing organ shortage, measures that increase total donor supply pools are desperately needed. Thyroid hormone has been identified as an adjunctive therapy in donor management due to its potential for increasing organ supply and is currently endorsed by transplant organizations such as United Network for Organ Sharing (UNOS). Much of the evidence in support of thyroid hormone comes from level III studies showing greater donor survival and procurement rates. However, all prospective randomized studies to date have failed to corroborate any such benefit. Here, we describe the role of thyroid hormone in transplantation medicine and summarize data on its putative contributions to circulatory stability, organ yield and long-term graft function. At present, level I studies do not exist and many level II studies, which do not endorse its use, are of poor quality. Further research, particularly large-scale multi-center trials are therefore warranted to shed light on this matter.

Current cervical total disc replacement (TDR) designs incorporate a variety of different biomaterials including polyethylene, stainless steel, titanium (Ti), and cobalt-chrome (CoCr). These materials are most important in their utilization as bearing surfaces which allow for articular motion at the disc space. Long-term biological effects of implanted materials include wear debris, host inflammatory immune reactions, and osteolysis resulting in implant failure. We review here the most common materials used in cervical TDR prosthetic devices, examine their bearing surfaces, describe the construction of the seven current cervical TDR devices that are approved for use in the United States, and discuss known adverse biological effects associated with long-term implantation of these materials. It is important to appreciate and understand the variety of biomaterials available in the design and construction of these prosthetics and the considerations which guide their implementation.

Paracetamol is arguably the most commonly used analgesic and antipyretic drug worldwide, however its mechanism of action is still not fully established. It has been shown to exert effects through multiple pathways, some actions suggested to be mediated via N-arachidonoylphenolamine (AM404). AM404, formed through conjugation of paracetamol-derived p-aminophenol with arachidonic acid in the brain, is an activator of the capsaicin receptor, TRPV1, and inhibits the reuptake of the endocannabinoid, anandamide, into postsynaptic neurons, as well as inhibiting synthesis of PGE by COX-2. However, the presence of AM404 in the central nervous system following administration of paracetamol has not yet been demonstrated in humans. Cerebrospinal fluid (CSF) and blood were collected from 26 adult male patients between 10 and 211 minutes following intravenous administration of 1 g of paracetamol. Paracetamol was measured by high-performance liquid chromatography with UV detection. AM404 was measured by liquid chromatography-tandem mass spectrometry. AM404 was detected in 17 of the 26 evaluable CSF samples at 5-40 nmol⋅L . Paracetamol was measurable in CSF within 10 minutes, with a maximum measured concentration of 60 μmol⋅L at 206 minutes. This study is the first to report on the presence of AM404 in human CSF following paracetamol administration. This may represent an important finding in our understanding of paracetamol's mechanism of action, although measured concentrations were far below the previously documented IC50 for this metabolite.

An efficient genotype-dependent high frequency plant regeneration system was developed for finger millet genotype GN-4 ( Gujarat Nagli-4). For callus induction, five different concentrations of 2,4-D (0.5, 1.0, 2.0, 3.0 and 4.0 mg L −1 ) were used to culture mature seeds and observed notable percentage of callus induction 94.00%; fresh and dry weight (0.903 g and 0.093 g) on Murashige and Skoog (MS) medium containing 2.0 mg L −1 2,4-D. Maximum callus proliferation (92.80%) with good quality of callus were observed on MS basal medium having 2.0 mg L −1 2,4-D + 0.5 mg L −1 BAP + 0.5 mg L −1 kinetin. On transferring callus for shoot generation, most effective regeneration of shoots (88.30%) with higher number of shoots per explant (8.00) and maximum shoot length (6.90 cm) were observed on MS + 1.0 mg L −1 BAP + 1.0 mg L −1 kinetin. For rooting, regenerated shoots were cultured to full-MS and half-MS media enriched with different levels of IBA and NAA and recorded remarkable early rooting response (71.67%) on half-MS medium + 0.1 mg L −1 IBA. These healthy rooted plants were transferred to pots containing sterilized potting mixture consisting vermicompost: soil: coco peat (1:1:1) for hardening and successfully acclimatized in the field conditions. Genetic stability of regenerated plantlets was confirmed by randomly amplified polymorphic DNA (RAPD) with monomorphic bands during different stages of plant tissue culture system and proved no variation. Furthermore, minerals (P, Mg, Ca and Fe) study based on inductively coupled plasma mass spectrometry (ICP-MS) determined higher content of P, Ca and Fe in seeds of regenerated plantlets as compared to mother plant.