Conditions For Development Research Articles

External Fixation versus Internal Fixation in the Treatment of Severe Grade of Blount’s Disease. A Systemic Review & Meta Analysis

Abstract Background Blount disease is a developmental condition characterized by a failure of endochondral ossification localized at the medial aspect of the proximal tibial physeal plate with consequent angular and rotational deformities of the lower limb. Objective To review systemically studies about External fixation versus internal fixation in the treatment of severe grade of blount’s disease. Patients and Methods This is a systematic review study and meta-analysis on human subjects studied in different literatures collected from different medical websites from 2011 till 2021 that dealing with external and internal fixation in Severe Blount’s disease, aiming at highlighting clinical and functional outcomes of both techniques. Data Sources Medline databases (PubMed, Medscape, ScienceDirect. EMF-Portal) and all materials available in the Internet till 2021. Data Extraction If the studies did not fulfill the inclusion criteria, they were excluded. Study quality assessment included whether ethical approval was gained, eligibility criteria specified, appropriate controls, and adequate information and defined assessment measures. Conclusion Comparison of both preoperative and postoperative results of both internal and external fixation methods showed statistically non-significant difference.

Optimizing the incubation conditions of third-stage larvae of the camel nasal bot Cephalopina titillator (Diptera: Oestridae) for harvesting adult flies

Background and Aim: Understanding the developmental conditions of Cephalopina titillator larvae and their effect on the success of pupation and adult emergence can help prevent and control this disease in camels. Incubating C. titillator larvae in vitro requires optimized conditions that have not been adequately reported in the literature. This study aimed to optimize conditions for harvesting adult flies from third-stage larvae (L3). Materials and Methods: L3 collected from naturally infested camels was washed in sterile saline, weighed, and placed in vials containing local sand. The vials were covered with gauze and incubated at 30°C–36°C with 60%–62% relative humidity in an environmental chamber. Results: A minimum critical weight of 754 mg per larva was found to be essential for the successful eclosion of the adults, regardless of the sex of the emerged flies. The pupariation period lasted 1–8 days (d) and took 5–13 days. Most incubated L3 formed puparia, but most failed to emerge as adults. The success rate of eclosion was 37.1%. The hatched adults survived for up to 18 days, and the females survived longer (12 d; 6–18) than the males (8.1 d; 3–16). Conclusion: The higher eclosion success tendency of certain sand types might be influenced by the sand’s physical and/ or chemical characteristics. The current in vitro conditions resemble those during the hot seasons and are suitable for harvesting viable adults of C. titillator from L3. Keywords: camel nasal bot, Cephalopina titillator, eclosion success, in vitro incubation, life span, myiasis.

Urban Water Crisis in Kabul City: Key Challenges and Solutions

Water is an essential human need for survival. However, billions globally wake up daily with accessible and affordable clean water. Rapid population growth, urbanization, climate change, precipitation regime changes, industrial development, and environmental degradation increase pressure on urban water resources. As a result, water demand is continuously rising, leading to prominent shortages in many cities in developing and developed countries, regardless of their developmental condition. One such city facing significant water scarcity is Kabul, the capital of Afghanistan, where rapid urbanization has outpaced local water supply infrastructure, resulting in unsustainable exploitation of groundwater resources. This directly threatens the well-being of millions of residents in this city. In anticipation of the exhaustion of local water sources, Kabul will soon need to explore alternative water supply methods, such as inter-basin water transfers, to meet the growing demand. This paper aims to offer a broad overview of urban water crises, evaluating the key drivers of water shortages, exploring the specific water crisis facing Kabul, and analyzing previous research, reports, papers, flow data, groundwater data, maps/charts, field observations, surveys, GIS data, and statistical analysis as the methods for this work. So, to combat declining groundwater levels, a sustainable groundwater management approach is crucial. The approach includes water conservation methods, the implementation of efficient irrigation techniques, and the adoption of water pricing mechanisms.

Regulation of alternative polyadenylation isoforms of Timp2 is an effector event of RAS signaling in cell transformation.

Alternative polyadenylation (APA) generates mRNA isoforms with different lengths of the 3' untranslated region (3' UTR). The tissue inhibitor of metalloproteinase 2 (TIMP2) plays a key role in extracellular matrix remodeling under various developmental and disease conditions. Both human and mouse genes encoding TIMP2 contain two highly conserved 3'UTR APA sites, leading to mRNA isoforms that differ substantially in 3'UTR size. APA of Timp2 is one of the most significantly regulated events in multiple cell differentiation lineages. Here we show that Timp2 APA is highly regulated in transformation of NIH3T3 cells by the oncogene HRAS G12V . Perturbations of isoform expression with long 3'UTR isoform-specific knockdown or genomic removal of the alternative UTR (aUTR) region indicate that the long 3'UTR isoform contributes to the secreted Timp2 protein much more than the short 3'UTR isoform. The short and long 3'UTR isoforms differ in subcellular localization to endoplasmic reticulum (ER). Strikingly, Timp2 aUTR enhances secreted protein expression but no effect on intracellular proteins in reporter assays. Furthermore, downregulation of Timp2 long isoform mitigates gene expression changes elicited by HRAS G12V . Together, our data indicate that regulation of Timp2 protein expression through APA isoform changes is an integral part of RAS-mediated cell transformation and 3'UTR isoforms of Timp2 can have distinct impacts on expression of secreted vs. intracellular proteins.

Evaluating the Efficacy of Combining Sensory Room and Conventional Therapies for Lebanese Children With Autism: A 10-Year Study.

Background Autism spectrum disorder (ASD) is a developmental condition characterized by sensory difficulties, which pose a significant challenge. Our aim is to evaluate the effectiveness of sensory room therapy in conjunction with traditional therapy, comparing it to traditional therapy alone, among children diagnosed with ASD in Lebanon. Methods A retrospective longitudinal study with cross-sectional survey (mixed study) was conducted over a 10-year period, involving 548 children diagnosed with autism spectrum disorder (ASD). The children were divided into two groups: group 1, comprising 306 children who received conventional therapy in addition to sensory room therapy, and group 2, consisting of 242 children who received conventional therapy alone. Data collection included sociodemographic characteristics, autism-related features, and scores from the Parental Concerns Questionnaire Inferring Alterations (PCQIA) scale, which measures sensory and behavioral characteristics. Data were collected at two time points: before the initiation of sensory room therapy and after the completion of the therapy, allowing for an assessment of changes and effectiveness post-treatment. Results In both groups, there was no significant difference in PCQIA scores following conventional therapy alone (group 1: mean score 34.1, group 2: mean score 33.4; p=0.222). However, a significant increase in PCQIA scores was observed after the addition of sensory room therapy in group 1 (combined therapy), with scores rising from a pre-therapy mean of 34.1 to a post-therapy mean of 41.7 (p<0.001). Moreover, there was a positive correlation between PCQIA scores and parental income. Additionally, 78.2% of parents rated sensory room therapy as highly effective, with 62% reporting significant improvement in their children's behavior and 80% noting increased engagement in extracurricular activities. Notably, 98% of parents indicated they would recommend the combined therapy to others. Conclusion Sensory room therapy demonstrates improvement in sensory challenges and motor skills among children diagnosed with ASD.

A Comparative Evaluation Between Dermatoglyphics and Canine Relationship in Deciduous Dentition: An Analysis for Prediction.

This study aimed to investigate the potential correlation between dermatoglyphic patterns and primary canine relationships in children aged three to six years. Dermatoglyphics, the study of ridge patterns on fingers, has been linked to various genetic and developmental conditions. Similarly, primary canine relationships provide insights into dental health and potential orthodontic needs. A cross-sectional study was conducted involving 600 children with complete primary dentition. Dermatoglyphic patterns were recorded using the ink and roller method, and primary canine relationships were assessed through clinical examination and dental cast analysis. Patterns were classified into arches, loops, and whorls, while canine relationships were categorized into Class I, II, or III. Statistical analyses, including chi-square tests and correlation coefficients, were performed to explore potential associations. The study found no significant correlation between dermatoglyphic patterns and primary canine relationships across various fingers of both hands. For each finger, the distribution of arches, loops, and whorls did not differ significantly among Classes I, II, and III canine relationships, with p-values ranging from 0.107 to 0.977. The results indicate that dermatoglyphic patterns and primary canine relationships are not directly correlated in this sample. This aligns with previous research suggesting that while both traits are influenced by genetic factors, their direct interaction may be less straightforward than hypothesized. The study highlights the complexity of genetic and developmental influences on dental and dermatoglyphic traits and underscores the need for further research. This study found no significant association between dermatoglyphic patterns and primary canine relationships. Future research should employ longitudinal designs and include diverse populations to explore indirect correlations and interactions. Understanding these relationships may enhance early diagnostic and predictive practices in pediatric dentistry, contributing to improved child health outcomes.

A Qualitative Exploration of Refugee Experiences of Access to a Dedicated Multi-Disciplinary Refugee Health Team in an Australian Context: Implication for Future Care

Aims Refugees experience physical and mental health issues that need attention following settlement in a new community. However, access to and utilisation of healthcare services is challenging. We aimed to explore the experience of refugee access to a dedicated multi-disciplinary refugee health team. Methods An interpretative qualitative study. 17 qualitative interviews were conducted with Ezidi refugees who attended a newly established multi-disciplinary refugee health program in a regional town in NSW, Australia. Data were analysed using an inductive thematic approach. Results Participants ( n = 17) identified as Ezidi and were from Iraq. Parents were between 23 and 57 years of age and had 1–12 children per family. Most had been in Australia between 2 and 5 years. Four key themes were identified: (1) Identifying the extent of health needs following a long wait to migrate; (2) Health support across the life span: the benefit of access to a multi-disciplinary team; (3) Gaps in cultural competence – impacted by understanding and interpreter access; and (4) Ongoing health and lifestyle concerns – influenced by understanding and education. Conclusions We identified the benefit of access to allied health for prompt diagnosis, treatment and management of conditions including congenital and developmental conditions, mental health and chronic diseases. Access to a dedicated team ensured early intervention for a broad range of health and social issues including early referral to services, close coordination and help to complete supporting paperwork and applications. Ongoing investments are needed to maintain this comprehensive and coordinated approach to care that is underpinned by a family centric approach.

Neuroanatomical and functional correlates in tic disorders and Tourette's syndrome: A narrative review.

Tic disorders represent a developmental neuropsychiatric condition whose causes can be attributed to a variety of environmental, neurobiological, and genetic factors. From a neurophysiological perspective, the disorder has classically been associated with neurochemical imbalances (particularly dopamine and serotonin) and structural and functional alterations affecting, in particular, brain areas and circuits involved in the processing and coordination of movements: the basal ganglia, thalamus, motor cortical area, and cingulate cortex; however, more recent research is demonstrating the involvement of many more brain regions and neurotransmission systems than previously observed, such as the prefrontal cortex and cerebellum. In this paper, therefore, we summarize the evidence to date on these abnormalities with the intent to illustrate and clarify the main neuroanatomical differences between patients with tic disorders and healthy individuals.

Quality Indicators for Transition from Pediatric to Adult Care for Youth With Chronic Conditions: Proposal for an Online Modified Delphi Study.

The transition from pediatric to adult care poses a significant health system-level challenge impeding the delivery of quality health services for youth with chronic health conditions. In Canada and globally, the transition to adult care is regarded as a top priority in adolescent health in need of readily applicable, adaptable, and relevant national metrics to evaluate and benchmark transition success across disease populations and clinical care settings. Unfortunately, existing literature fails to account for the lack of engagement from youth and caregivers in developing indicators, and its applicability across chronic conditions, primary care involvement, and health equity considerations. Our proposed study aims to establish a consensus-driven set of quality indicators for the transition to adult care that are universally applicable across physical, developmental, and mental health conditions, clinical care settings, and health jurisdictions. Using an integrated knowledge translation (iKT) approach, a panel comprising youth, caregivers, interdisciplinary health care providers, and health system leaders will be established to collaborate with our research team to ensure that the study methodology, materials, and knowledge dissemination are suitable and reflect the perspectives of youth and their families. We will then conduct an iterative 3-round Online Modified Delphi (OMD) study (n=160) to (1) compare and contrast the perspectives of youth, caregivers, health care providers, and health system leaders on quality indicators for transition; and (2) prioritize a key set of quality indicators for transition applicable across disease populations that are the most important, useful, and feasible in the Canadian context. Using the RAND/UCLA Appropriateness Method (RAM) multistage analytic approach, data from each panel and stakeholder group will be examined separately and compared to establish a key set of indicators endorsed by both panels. The study is funded by the Canadian Institutes of Health Research and Physicians Services Incorporated. This study will produce quality indicators to evaluate and inform action equitably to improve transition from pediatric to adult care for youth and their families in Canada. PRR1-10.2196/60860.

The Use of Audiovisual Distraction Tools in the Dental Setting for Pediatric Subjects with Special Healthcare Needs: A Review and Proposal of a Multi-Session Model for Behavioral Management.

A Special Health Care Need (SHCN) is characterized by any type of physical, mental, sensorial, cognitive, emotional, or developmental condition that requires medical treatment, specialized services, or healthcare interventions. These conditions can negatively impact oral health as SHCN children can hardly cooperate or communicate and experience higher levels of dental fear/anxiety, which interfere with regular appointments. The present narrative review aims to analyze the use of audiovisual (AV) tools in dental setting for the management of SHCN children during dental treatment and to evaluate their effectiveness in anxiety/behavior control from the child, dentist, and care-giver perspectives. This analysis leads to the proposal of a new multi-session model for the behavioral management of SHCN pediatric subjects. An electronic search on the MEDLINE/Pubmed, Scopus, and Web of Science databases was carried out and through this analysis, a new model was proposed, the "UNISA-Virtual Stepwise Distraction model", a multi-session workflow combining traditional behavior management and the progressive introduction of AV media to familiarize the SHCN child with dental setting and manage behavior. AV tools helped in most cases to manage SHCN behavior and decreased stress in both the dentist and child during dental treatments. Care-givers also welcomed AV distractors, reporting positive feedback in using them during future treatments. The present narrative review found increasing evidence of the use of AV media for SHCN pediatric subjects as distraction tools during dental treatment. In the majority of the studies, AV tools proved to be effective for the management of anxiety, dental fear, and behavior in dental setting.

Impact of neuro-optometric rehabilitation on adult oculomotor challenges - A systematic review.

Neuro-optometric rehabilitation has a broad range of potential rehabilitative applications in neurological and developmental conditions affecting the eye. There is a dearth of evidence supporting its effectiveness, especially in adults. To address this issue, we systematically reviewed literature published in English between January 2000 and June 2022, obtained from search engines such as PubMed, EMBASE, Scopus, and CINAHL, using keywords including "neuro optometry," "rehabilitation" or a related term, and "oculomotor problem" or "neurological problem" or a related term. Duplicates were eliminated through Mendeley software, and the quality of the selected studies was evaluated using JBI's critical appraisal tools. Two authors independently reviewed six full-text articles. Relevant data were extracted to Microsoft Excel, and a third author reviewed it. Any uncertainties were resolved through consultation with the last author. Selected studies included adults who had oculomotor problems resulted either from traumatic brain injury/stroke/cerebrovascular accidents and managed with various rehabilitative therapies. Office-based, home-based, or combination therapies with duration ranging from 8 to 12 weeks with the frequency of 2-5 sessions/week were found effective in managing oculomotor problems in adults. However, there is a need for more clinical studies with a larger sample size in this regard.

Comprehensive Screening and Validation of Stable Internal Reference Genes for Accurate qRT-PCR Analysis in Holotrichia parallela under Diverse Biological Conditions and Environmental Stresses.

Holotrichia parallela is among the world's most destructive pests. For accurate qPCR and gene expression studies, the selection of stable and appropriate reference genes is crucial. However, a thorough evaluation of potential reference genes for use in H. parallela research is lacking. In this study, 11 reference genes (GAPDH, RPL32, RPL7A, RPS18, RPL13a, RPL18, Actin, RPS7, RPS3, VATB,and EF1A) were evaluated under different biological conditions and environmental stresses. The stability of 11 potential reference gene transcripts was evaluated through various computational tools, including geNorm, BestKeeper, NormFinder, theΔCt method, and the RefFinder program. Under various developmental stages and RNAi conditions, RPL18 and RPL13a exhibited the greatest stability. RPL13a, RPL18, and RPL32 were the most stable genes in both male and female adults. Under differing tissue conditions, RPL13a and RPS3 stood out as the most reliable. Moreover, under varying photoperiod conditions, RPL13a, RPS3 and RPL32 were the most stable genes. Lastly, Actin and RPL13a were the most stable genes across different temperatures. These findings offer essential criteria for selecting suitable reference genes across diverse experimental settings, thereby establishing a solid basis for accurate gene expression studies in H. parallela using RT-qPCR.

Development of an in vitro compound screening system that replicate the in vivo spine phenotype of idiopathic ASD model mice.

Autism Spectrum Disorder (ASD) is a developmental condition characterized by core symptoms including social difficulties, repetitive behaviors, and sensory abnormalities. Aberrant morphology of dendritic spines within the cortex has been documented in genetic disorders associated with ASD and ASD-like traits. We hypothesized that compounds that ameliorate abnormalities in spine dynamics might have the potential to ameliorate core symptoms of ASD. Because the morphology of the spine is influenced by signal inputs from other neurons and various molecular interactions, conventional single-molecule targeted drug discovery methods may not suffice in identifying compounds capable of ameliorating spine morphology abnormalities. In this study, we focused on spine phenotypes in the cortex using BTBR T + Itpr3 tf /J (BTBR) mice, which have been used as a model for idiopathic ASD in various studies. We established an in vitro compound screening system using primary cultured neurons from BTBR mice to faithfully represent the spine phenotype. The compound library mainly comprised substances with known target molecules and established safety profiles, including those approved or validated through human safety studies. Following screening of this specialized library containing 181 compounds, we identified 15 confirmed hit compounds. The molecular targets of these hit compounds were largely focused on the 5-hydroxytryptamine receptor (5-HTR). Furthermore, both 5-HT1AR agonist and 5-HT3R antagonist were common functional profiles in hit compounds. Vortioxetine, possessing dual attributes as a 5-HT1AR agonist and 5-HT3R antagonist, was administered to BTBR mice once daily for a period of 7days. This intervention not only ameliorated their spine phenotype but also alleviated their social behavior abnormality. These results of vortioxetine supports the usefulness of a spine phenotype-based assay system as a potent drug discovery platform targeting ASD core symptoms.

Psychosocial consequences of growing up as Austrian occupation children in post-World-War II Austria

ABSTRACT Background: During the post-World War II occupation of Austria, approximately 20,000–30,000 ‘children born of war’ (CBOW), also called occupation children were born through intimate contacts between Austrian women and occupation soldiers. Research on other CBOW populations indicates that CBOW mostly grow up under difficult conditions, sometimes with strong long-term mental health consequences. Objective: To examine whether comparable psychosocial consequences can be found in Austrian occupation children (AOC), a first quantitative study was carried out. Method: Child maltreatment, post-traumatic stress disorder, depression and somatization, and general life satisfaction were assessed in a sample of 98 AOC using self-report instruments. Results were compared to a sample of German occupation children (GOC; N = 146). Results: High prevalence of above threshold full (10.2%) and partial (14.3%) PTSD, somatic (16.3%) and depressive (11.1%) symptomatology were found in AOC. They were at high risk of child maltreatment (e.g. emotional abuse: 53.6%), which was associated with current symptomatology. Notably, AOC tended to report high levels of general life satisfaction. No differences were found between GOC and AOC. Conclusions: Findings highlight the complex and long-term effects of developmental conditions and childhood maltreatment on mental health of CBOW, even decades later. Findings of high life satisfaction provide evidence of resilience and maturation processes across the lifespan.

Temperature influences immune cell development and body length in purple sea urchin larvae

Anthropogenic climate change has increased the frequency and intensity of marine heatwaves that may broadly impact the health of marine invertebrates. Rising ocean temperatures lead to increases in disease prevalence in marine organisms; it is therefore critical to understand how marine heatwaves impact immune system development. The purple sea urchin (Strongylocentrotus purpuratus) is an ecologically important, broadcast-spawning, omnivore that primarily inhabits kelp forests in the northeastern Pacific Ocean. The S. purpuratus life cycle includes a relatively long-lived (∼2 months) planktotrophic larval stage. Larvae have a well-characterized cellular immune system that is mediated, in part, by a subset of mesenchymal cells known as pigment cells. To assess the role of environmental temperature on the development of larval immune cells, embryos were generated from adult sea urchins conditioned at 14 °C. Embryos were then cultured in either ambient (14 °C) or elevated (18 °C) seawater. Results indicate that larvae raised in an elevated temperature were slightly larger and had more pigment cells than those raised at ambient temperature. Further, the larval phenotypes varied significantly among genetic crosses, which highlights the importance of genotype in structuring how the immune system develops in the context of the environment. Overall, these results indicate that larvae are phenotypically plastic in modulating their immune cells and body length in response to adverse developmental conditions.

Loss of symmetric cell division of apical neural progenitors drives DENND5A-related developmental and epileptic encephalopathy

Developmental and epileptic encephalopathies (DEEs) feature altered brain development, developmental delay and seizures, with seizures exacerbating developmental delay. Here we identify a cohort with biallelic variants in DENND5A, encoding a membrane trafficking protein, and develop animal models with phenotypes like the human syndrome. We demonstrate that DENND5A interacts with Pals1/MUPP1, components of the Crumbs apical polarity complex required for symmetrical division of neural progenitor cells. Human induced pluripotent stem cells lacking DENND5A fail to undergo symmetric cell division with an inherent propensity to differentiate into neurons. These phenotypes result from misalignment of the mitotic spindle in apical neural progenitors. Cells lacking DENND5A orient away from the proliferative apical domain surrounding the ventricles, biasing daughter cells towards a more fate-committed state, ultimately shortening the period of neurogenesis. This study provides a mechanism for DENND5A-related DEE that may be generalizable to other developmental conditions and provides variant-specific clinical information for physicians and families.

Bacterial Production of CDKL5 Catalytic Domain: Insights in Aggregation, Internal Translation and Phosphorylation Patterns.

Cyclin-dependent kinase-like 5 (CDKL5) is a serine/threonine protein kinase involved in human brain development and functioning. Mutations in CDKL5, especially in its catalytic domain, cause a severe developmental condition named CDKL5 deficiency disorder. Nevertheless, molecular studies investigating the structural consequences of such mutations are still missing. The CDKL5 catalytic domain harbors different sites of post-translational modification, such as phosphorylations, but their role in catalytic activity, protein folding, and stability has not been entirely investigated. With this work, we describe the expression pattern of the CDKL5 catalytic domain in Escherichia coli demonstrating that it predominantly aggregates. However, the use of solubility tags, the lowering of the expression temperature, the manual codon optimization to overcome an internal translational start, and the incubation of the protein with K+ and MgATP allow the collection of a soluble catalytically active kinase. Interestingly, the resulting protein exhibits hypophosphorylation compared to its eukaryotic counterpart, proving that bacteria are a useful tool to achieve almost unmodified CDKL5. Posing questions about the CDKL5 autoactivation mechanism and the determinants for its stability, this research provides a valuable platform for comparative biophysical studies between bacterial and eukaryotic-expressed proteins, contributing to our understanding of neurodevelopmental disorders associated with CDKL5 dysfunction.

Effects of Play-Based Sensory Interventions on Self-Regulation in Preschoolers With Developmental Conditions: A Systematic Review

Abstract Date Presented 03/22/24 Children with developmental conditions often struggle with self-regulation, which affects their participation in daily occupations. We will discuss the results of a systematic review of play-based sensory interventions to improve self-regulation. Primary Author and Speaker: Margaret Meeks Contributing Authors: Jewel Elias Crasta, Emily Sheridan

Visual processing and decision-making in autism and dyslexia: Insights from cross-syndrome approaches.

Atypical visual processing has been reported in developmental conditions like autism and dyslexia, and some accounts propose a causal role for visual processing in the development of these conditions. However, few studies make direct comparisons between conditions, or use sufficiently sensitive methods, meaning that it is hard to say whether atypical visual processing tells us anything specific about these conditions, or whether it reflects a more general marker of atypical development. Here I review findings from two computational modelling approaches (equivalent noise and diffusion modelling) and related electroencephalography (EEG) indices which we have applied to data from autistic, dyslexic and typically developing children to reveal how the component processes involved in visual processing and decision-making are altered in autism and dyslexia. The results identify both areas of convergence and divergence in autistic and dyslexic children's visual processing and decision-making, with implications for influential theoretical accounts such as weak central coherence, increased internal noise, and dorsal-stream vulnerability. In both sets of studies, we also see considerable variability across children in all three groups. To better understand this variability, and further understand the convergence and divergence identified between conditions, future studies would benefit from studying how the component processes reviewed here relate to transdiagnostic dimensions, which will also give insights into individual differences in visual processing and decision-making more generally.

Evolution and stress response potential of the plant splicing factor U1C

Alternative splicing is a crucial process in multicellular eukaryote, facilitated by the assembly of spliceosomal complexes comprising numerous small ribonucleoproteins. At an early stage, U1C is thought to be required for 5′ splice site recognition and base pairing. However, a systematic analysis of the U1C gene family in response to developmental cues and stress conditions has not yet been conducted in plants. This study identified 114 U1C genes in 72 plant species using basic bioinformatics analyses. Phylogenetic analysis was used to compare gene and protein structures, promoter motifs, and tissue- and stress-specific expression levels, revealing their functional commonalities or diversity in response to developmental cues, such as embryonic expression, or stress treatments, including drought and heat. Fluorescence quantitative expression analysis showed that U1C gene expression changed under salt, low temperature, drought, and Cd stress in rice seedlings. However, gene expression in shoots and roots was not consistent under different stress conditions, suggesting a complex regulatory mechanism. This research provides foundational insights into the U1C gene family's role in plant development and stress responses, highlighting potential targets for future studies.