Metal-Support Interaction in Pt Nanodisk-Carbon Nitride Catalyst: Insight from Theory and Experiment.

Metal-support interaction plays a critical role in determining the eventual catalytic activity of metals loaded on supporting substrates. This interaction can sometimes cause a significant drop in the metallic property of the loaded metal and, hence, a drop in catalytic activity in the reactions, especially in those for which low charge carrier transfer resistance is a necessary parameter. Therefore, there should be a case-by-case experimental or theoretical (or both) in-depth investigation to understand the role of support on each metal. Here, onto a layered porous carbon nitride (g-CN), we grew single crystalline Pt nanodisks (Pt@g-CN) with a lateral average size of 21 nm, followed by various characterisations such as electron microscopy techniques, and the measurement of electrocatalytic activity in the O2 reduction reaction (ORR). We found that intercalating Pt nanodisks in the g-CN interlayers causes an increase in electrocatalytic activity. We investigated the bonding mechanism between carbon support and platinum using density functional theory and applied the d-band theory to understand the catalytic performance. Analysis of Pt's density of states and electronic population across layers sheds light on the catalytic behaviour of Pt nanoparticles, particularly in relation to their thickness and proximity to the g-CN support interface. Our simulation reveals an optimum thickness of ~11 Å, under which the catalytic performance deteriorates.

Hippopotamus optimization algorithm: a novel nature-inspired optimization algorithm.

The novelty of this article lies in introducing a novel stochastic technique named the Hippopotamus Optimization (HO) algorithm. The HO is conceived by drawing inspiration from the inherent behaviors observed in hippopotamuses, showcasing an innovative approach in metaheuristic methodology. The HO is conceptually defined using a trinary-phase model that incorporates their position updating in rivers or ponds, defensive strategies against predators, and evasion methods, which are mathematically formulated. It attained the top rank in 115 out of 161 benchmark functions in finding optimal value, encompassing unimodal and high-dimensional multimodal functions, fixed-dimensional multimodal functions, as well as the CEC 2019 test suite and CEC 2014 test suite dimensions of 10, 30, 50, and 100 and Zigzag Pattern benchmark functions, this suggests that the HO demonstrates a noteworthy proficiency in both exploitation and exploration. Moreover, it effectively balances exploration and exploitation, supporting the search process. In light of the results from addressing four distinct engineering design challenges, the HO has effectively achieved the most efficient resolution while concurrently upholding adherence to the designated constraints. The performance evaluation of the HO algorithm encompasses various aspects, including a comparison with WOA, GWO, SSA, PSO, SCA, FA, GOA, TLBO, MFO, and IWO recognized as the most extensively researched metaheuristics, AOA as recently developed algorithms, and CMA-ES as high-performance optimizers acknowledged for their success in the IEEE CEC competition. According to the statistical post hoc analysis, the HO algorithm is determined to be significantly superior to the investigated algorithms. The source codes of the HO algorithm are publicly available at https://www.mathworks.com/matlabcentral/fileexchange/160088-hippopotamus-optimization-algorithm-ho .

Comparing the effects of rosemary aromatherapy and music therapy on anxiety levels in patients undergoing general surgery: A randomized controlled clinical trial.

BACKGROUND: Preoperative anxiety is a prevalent concern among patients undergoing surgery, potentially elevating the risk of postoperative complications. This study aimed to compare the effectiveness of inhalation aromatherapy using rosemary essential oil and music therapy in reducing anxiety levels among general surgery patients. METHODS: This study employed a randomized controlled clinical trial design involving 236 patients scheduled for general surgery. The participants were randomly assigned to one of four groups: aromatherapy with Rosmarinus officinalis L. essential oil (n = 59), music therapy (n = 59), combined aromatherapy and music therapy (n = 59), and a control group (n = 59). Data collection instruments consisted of the Spielberger State Anxiety Inventory, a personal information form, a music player, and wireless headphones. In the aromatherapy group, patients were instructed to inhale three drops of 25% rosemary essential oil. The music therapy group listened to instrumental music through headphones, while the combined group received both inhalation aromatherapy with rosemary essential oil and music therapy. The control group received three drops of an aromatic placebo. The interventions were administered for a duration of 30 min, starting one hour before surgery. Inferential statistics, including the Kolmogorov-Smirnov test, chi-square test, paired t-test, one-way analysis of variance, and LSD post-hoc test, were employed for data analysis. RESULTS: The study findings demonstrated significant effectiveness in reducing anxiety among surgical patients for aromatherapy (P = 0.001), music therapy (P < 0.001), and combined aromatherapy and music therapy (P = 0.001). Aromatherapy showed the highest anxiety-reducing effect, whereas combined therapy exhibited the lowest effect. CONCLUSION: The results indicate that inhalation aromatherapy, music therapy, and combined aromatherapy and music therapy are all effective approaches for anxiety reduction in surgical patients. Hence, the implementation of these cost-effective and non-invasive interventions is recommended to alleviate anxiety among surgical patients.

Estimating the number of required nurses in different types of hospitals: An application of the workload indicators of staffing needs (WISNS) method.

BACKGROUND: Health system performance depends on the availability, accessibility, acceptability, and quality of health workforces. Policymakers seek whether the number of nurses is optimally matched based on patients' needs. This study aimed to assess the workforce stock, workload activities, activity standards, and workload pressure to determine the number of required nurses in different types of hospitals in Iran. METHODS: This study applied the workload indicators of staffing needs (WISNs) method and was conducted in 22 surgical and internal medicine wards at five hospitals in the southwest of Iran during six months. A time-motion study, and several group discussions, interviews were used to extract the required data. Descriptive statistics were used for data analysis. RESULTS: All selected hospitals faced nursing shortages. The highest shortage (-47) and workload pressure (WISN ratio 0.45) were observed in the general-educational hospitals. In the specialized hospitals, the workload pressure was high (WISN ratio 0.49). The lowest shortage belonged to the private hospital. Based on our assessment, in all of the hospitals, nurses typically worked overtime due to high workload. The studied hospitals covered an average of 25% of their shortage with nursing overtime working. We noted that nurses were predominantly occupied with health service and supportive activities (≈90% of their time). CONCLUSIONS: Based on the WISN method, all of the hospitals faced nursing shortages from moderate to high. However, it would be essential to consider current labor market analysis based on accurate data to adopt appropriate policies in HRH planning.

Unveiling Therapeutic Potential: A Systematic Review of Photobiomodulation Therapy and Biological Dressings for Diabetic Foot Ulcers.

Introduction: Diabetes poses a global health challenge, giving rise to various complications, including diabetic foot ulcers (DFUs). DFUs, marked by ischemic ulcers susceptible to infection and amputation, underscore the urgency for innovative treatments. This study investigated the impact of photobiomodulation therapy (PBT) and autologous platelet gel (APG) on DFUs recovery. Methods: We systematically searched Web of Science, EMBASE, MEDLINE, Cochrane Library, Scopus, and Google Scholar (2015-2023) by using pertinent terms like "photobiomodulation therapy," "low level light therapy," and "platelet gel." After meticulous data extraction and review, 57 articles were chosen and categorized. Among these, three randomized controlled trials involving 186 participants were selected for APG analysis. Results: Findings demonstrate that APG application carries minimal risk and offers promising improvements in healing time, grade, pain reduction, and granulation tissue formation. Similarly, diverse PBT modalities involving distinct probes and wavelengths exhibit the potential to enhance tissue perfusion, expedite healing, and impede wound progression, reducing the need for invasive interventions. Conclusion: PBT and APG emerge as valuable tools to augment wound healing, mitigate inflammation, and avert amputation, representing compelling therapeutic options for DFUs.

Corrigendum to: Betaine ameliorates high glucose-induced oxidative stress in granulosa cells.

CONTEXT: In diabetes, abnormalities of granulosa cells (GCs) and steroidogenesis are associated with hyperglycaemia-induced oxidative stress. Betaine has beneficial effect in experimental model of diabetes by reducing oxidative stress, inflammation, and apoptosis. AIMS: In this study we investigate the effects of betaine to prevent oxidative stress in GCs induced by high glucose and improve steroidogenesis. METHODS: Primary GCs, isolated from ovarian follicles of C57BL/6 mice were cultured in 5mM (control) and 30mM (hyperglycaemia) of glucose and in presence of 5mM of betaine for 24h. Then antioxidant enzymes, malondialdehyde, oestradiol and progesterone were measured. In addition, the expression of Nrf2 and NF-κB , antioxidant enzymes (Sod1 , Gpx and Cat ) were analysed by qRT-PCR assay. KEY RESULTS: We observed significant (P NF-κB and down-regulation of Nrf2 due to high concentration of glucose. Also significant (P Cat , Sod1 and GPx ) and activity reduction of these enzymes as well as significant (P NF-κB and up-regulating the expression of Nrf2 , Cat , Sod1 and GPx . It was also shown that betaine in the presence of FSH significantly (P Conclusion: Betaine compensated the antioxidant stress in mouse GCs under hyperglycaemic condition via regulation of Nrf2/NF-κB at transcription level. IMPLICATIONS: As betaine is a natural product and no side effect has been reported to today, we suggest more research needs to be carried out especially on patients whom suffer from diabetes to find the probability of using betaine as a therapeutic agent.

Liposomes-Based Drug Delivery Systems of Anti-Biofilm Agents to Combat Bacterial Biofilm Formation.

All currently approved antibiotics are being met by some degree of resistance by the bacteria they target. Biofilm formation is one of the crucial enablers of bacterial resistance, making it an important bacterial process to target for overcoming antibiotic resistance. Accordingly, several drug delivery systems that target biofilm formation have been developed. One of these systems is based on lipid-based nanocarriers (liposomes), which have shown strong efficacy against biofilms of bacterial pathogens. Liposomes come in various types, namely conventional (charged or neutral), stimuli-responsive, deformable, targeted, and stealth. This paper reviews studies employing liposomal formulations against biofilms of medically salient gram-negative and gram-positive bacterial species reported recently. When it comes to gram-negative species, liposomal formulations of various types were reported to be efficacious against Pseudomonas aeruginosa, Escherichia coli, Acinetobacter baumannii, and members of the genera Klebsiella, Salmonella, Aeromonas, Serratia, Porphyromonas, and Prevotella. A range of liposomal formulations were also effective against gram-positive biofilms, including mostly biofilms of Staphylococcal strains, namely Staphylococcus aureus, Staphylococcus epidermidis, and Staphylococcus saprophyticus subspecies bovis, followed by Streptococcal strains (pneumonia, oralis, and mutans), Cutibacterium acnes, Bacillus subtilis, Mycobacterium avium, Mycobacterium avium subsp. hominissuis, Mycobacterium abscessus, and Listeria monocytogenes biofilms. This review outlines the benefits and limitations of using liposomal formulations as means to combat different multidrug-resistant bacteria, urging the investigation of the effects of bacterial gram-stain on liposomal efficiency and the inclusion of pathogenic bacterial strains previously unstudied.

Betaine ameliorates high glucose-induced oxidative stress in granulosa cells.

CONTEXT: In diabetes, abnormalities of granulosa cells (GCs) and steroidogenesis are associated with hyperglycaemia-induced oxidative stress. Betaine has beneficial effect in experimental model of diabetes by reducing oxidative stress, inflammation, and apoptosis. AIMS: In this study we investigate the effects of betaine to prevent oxidative stress in GCs induced by high glucose and improve steroidogenesis. METHODS: Primary GCs, isolated from ovarian follicles of C57BL/6 mice were cultured in 5mM (control) and 30mM (hyperglycaemia) of glucose and in presence of 5mM of betaine for 24h. Then antioxidant enzymes, malondialdehyde, oestradiol and progesterone were measured. In addition, the expression of Nrf2 and NF-κB , antioxidant enzymes (Sod1 , Gpx and Cat ) were analysed by qRT-PCR assay. KEY RESULTS: We observed significant (P <0.001) up-regulation of NF-κB and down-regulation of Nrf2 due to high concentration of glucose. Also significant (P <0.001) down-regulation of related antioxidant genes (Cat , Sod1 and GPx ) and activity reduction of these enzymes as well as significant (P <0.001) elevation of malondialdehyde was observed. In addition, betaine treatment compensated the drastic effect of high glucose induced oxidative stress via down-regulating the expression of NF-κB and up-regulating the expression of Nrf2 , Cat , Sod1 and GPx . It was also shown that betaine in the presence of FSH significantly (P <0.001) restored the oestradiol and progesterone level. CONCLUSION: Betaine compensated the antioxidant stress in mouse GCs under hyperglycaemic condition via regulation of Nrf2/NF-κB at transcription level. IMPLICATIONS: As betaine is a natural product and no side effect has been reported to today, we suggest more research needs to be carried out especially on patients whom suffer from diabetes to find the probability of using betaine as a therapeutic agent.

Intranasal drug delivery in pediatric emergency departments: brief review and future outlook

This review aims to provide an overview and update of current literature on the use of intranasal (IN) drug delivery in pediatric emergency medicine (PEM), in terms of the anatomy, physiology, pharmacokinetics, limitations, drug delivery methods, necessary training, safety, contraindications, effectiveness, current indications and trends, and implications for clinical practice and future developments in IN drug administration. We evaluate how IN medication use in PEM has recently evolved, what recent research has revealed about the utility of IN drug delivery in PEM, and what the future of IN drug delivery might look like.

Using Normalization Process Theory to Evaluate an End-of-Life Pediatric Palliative Care Web-Based Training Program for Nurses: Protocol for a Randomized Controlled Trial.

BACKGROUND: Palliative care (PC) is a new concept in Iraq, and there is no training for health care specialists or the public. The lack of education and training programs is the most important barrier for PC. Intermediate training is needed for nurses who regularly manage patients with life-threatening diseases. The End-of-Life Nursing Education Consortium for pediatric palliative care (PPC) program is intended for nurses who are interested in providing care to children with life-limiting diseases or providing support in the event of an accident or unexpected death. OBJECTIVE: Our trial aims to evaluate the effect of a web-based training course, using the Normalization Process Theory. It focuses on how complex interventions become routinely embedded in practice and on training of a sample of academic nurses in the application of PPC in routine daily practice. It hypothesizes that nurses will be able to provide PC for the pediatric population after completing the training. METHODS: This is a multicenter, parallel, pragmatic trial in 5 health care settings spread across a single city in Babylon Province, Iraq. Participants will be recruited and stratified into 2 categories (critical care units and noncritical care units). In the experimental condition, 86 nurses will be trained in the application of PPC for 2 weeks through a web-based training course powered by the Relais Platform. The nurses will be invited to participate via email or instant messaging (WhatsApp, Telegram, or Viber). They will provide end-of-life care in addition to usual care to children and adolescents with life-limiting conditions. In the control condition, 86 nurses will continue usual care. The program's effectiveness will be assessed at the level of nurses only. We will compare baseline findings (before the intervention) with postintervention findings (after completing the training course). A further assessment will be performed 3 months after the course. As numerous unidentified factors can influence the effect of the training, we will perform a progressive evaluation to assess sample selection, application, and intervention value, as well as implementation difficulties. The nursing staff will not be blinded to the intervention, but will be blinded to the results. RESULTS: The study trial recruitment opened in July 2020. The first outcomes became available in December 2020. CONCLUSIONS: The trial attempts to clarify the delivery of PC at the end of life through the implementation of a web-based training course among Iraqi nurses in the pediatric field. The study strengths include the usual practice setting, staff training, readiness of staff to participate in the study, and random allocation to the intervention. However, participants may drop out after being transferred to another department during the study period. TRIAL REGISTRATION: ClinicalTrials.gov NCT04461561; https://clinicaltrials.gov/ct2/show/NCT04461561. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/23783.

Unintended Foley's catheter placement into the ureter: A case report.

INTRODUCTION: Foleys catheter insertion is among the most common urological procedures performed by urologists. CASE PRESENTATION: Here we present a case diagnosed with neurogenic bladder before 3 years and she was on long-term indwelling Foleys catheter since that due to urge incontinence and changes her catheter regularly every 10 to12 weeks, where the tip of the catheter was found in the right vesico-ureteric junction with hydronephrosis of the right kidney. DISCUSSION: The two most commonly encountered complications of Foley catheter placement are urethral injury and retention of the Foley balloon in the urethra. Misdirection of Foleys catheter into the ureter is a rare complication. Up to our knowledge, only twenty cases have been reported in literature. CONCLUSION: One should keep in mind that inadvertent insertion into the ureter can occur, especially in female patients with neurogenic bladder.

The Effect of Inhalation Aromatherapy and Music Therapy on Anxiety in Patients Undergoing Shockwave Lithotripsy: A Randomized Controlled Clinical Trial.

Patients undergoing shock wave lithotripsy (SWL) have a high level of anxiety. This study was aimed to compare the effect of music therapy and aromatherapy on patients' anxiety levels during SWL. In this clinical trial, 176 patients undergoing SWL were randomly assigned to four groups: music therapy, aromatherapy, combined music therapy and aromatherapy, and control. The state-trait anxiety inventory (STAI) was used to collect data. In the aromatherapy group, three drops of rosemary essential oil were used during SWL. For the music therapy group, soft music was played during SWL. In the music therapy and aromatherapy group, soft music and three drops of rosemary essential oil were used simultaneously. In the control group, three drops of aromatic distilled water were used. The results showed that all patients had moderate anxiety before the intervention. The analysis of variance test did not show a statistically significant difference between the groups, but this difference was significant after the intervention. The levels of anxiety after the intervention were higher in the music therapy, aromatherapy, and combined music therapy and aromatherapy groups than in the control group. The results of the paired t-test showed the level of anxiety after the intervention was significantly increased in the intervention group (P < 001). In conclusion, the results indicated that music therapy, aromatherapy, and combined music therapy and aromatherapy had no effect on reducing patients' anxiety during SWL.

Silymarin modulates cadmium-induced oxidative stress in human spermatozoa.

Environmental pollutants such as cadmium can negatively affect sperm parameters and decrease male fertility by inducing oxidative stress. Antioxidants are considered a useful strategy for oxidative stress conditions to neutralize free radicals and strengthen the antioxidant defence system. In this study, the effects of the common application of silymarin, as a natural antioxidant, with cadmium were assessed on human sperm. The washed human sperm samples were divided into five groups: (1) spermatozoa at 0- hour; (2) spermatozoa at 3 h; (3) spermatozoa treated with cadmium (20 µM) for 3 h; (4) spermatozoa treated with silymarin (2 µM) + cadmium (20 µM) for 3 h and (5) spermatozoa treated with silymarin (2 µM) for 3 h. Our results displayed that cadmium reduced sperm motility, viability, plasma membrane integrity and acrosome integrity by increasing malondialdehyde levels and decreasing the total antioxidant capacity and antioxidant enzymes activity. While silymarin attenuated oxidative stress biomarkers in human sperm treated with cadmium, and consequently improved the sperm quality. In summary, cadmium-induced oxidative stress impaired human sperm structures and silymarin with its antioxidant properties compensated for the adverse effects of oxidative stress on human spermatozoa.

Stability Trends in Mono-Metallic 3d Layered Double Hydroxides.

Layered double hydroxides (LDHs) constitute a unique group of 2D materials that can deliver exceptional catalytic, optical, and electronic performance. However, they usually suffer from low stability compared to their oxide counterparts. Using density functional calculations, we quantitatively demonstrate the crucial impact of the intercalants (i.e., water, lactate, and carbonate) on the stability of a series of common LDHs based on Mn, Fe, and Co. We found that intercalation with the singly charged lactate results in higher stability in all these LDH compounds, compared to neutral water and doubly charged carbonate. Furthermore, we show that the dispersion effect aids the stability of these LDH compounds. This investigation reveals that certain intercalants enhance LDH stability and alter the bandgap favourably.

Effectiveness of a population-based integrated care model in reducing hospital activity: an interrupted time series analysis.

Objectives: First impact assessment analysis of an integrated care model (ICM) to reduce hospital activity in the London Borough of Hillingdon, UK. Methods: We evaluated a population-based ICM consisting of multiple interventions based on self-management, multidisciplinary teams, case management and discharge management. The sample included 331 330 registered Hillingdon residents (at the time of data extraction) between October 2018 and July 2020. Longitudinal data was extracted from the Whole Systems Integrated Care database. Interrupted time series Poisson and Negative binomial regressions were used to examine changes in non-elective hospital admissions (NEL admissions), accident and emergency visits (A&E) and length of stay (LoS) at the hospital. Multiple imputations were used to replace missing data. Subgroup analysis of various groups with and without long-term conditions (LTC) was also conducted using the same models. Results: In the whole registered population of Hillingdon at the time of data collection, gradual decline over time in NEL admissions (RR 0.91, 95% CI 0.90 to 0.92), A&E visits (RR 0.94, 95% CI 0.93 to 0.95) and LoS (RR 0.93, 95% CI 0.92 to 0.94) following an immediate increase during the first months of implementation in the three outcomes was observed. Subgroup analysis across different groups, including those with and without LTCs, showed similar effects. Sensitivity analysis did not show a notable change compared with the original analysis. Conclusion: The Hillingdon ICM showed effectiveness in reducing NEL admissions, A&E visits and LoS. However, further investigations and analyses could confirm the results of this study and rule out the potential effects of some confounding events, such as the emergence of COVID-19 pandemic.

Effectiveness of integrated care interventions for patients with long-term conditions: a review of systematic reviews.

To examine the effectiveness of integrated care intervention (ICI) models (stand-alone or combination of self-management, discharge management, case management and multidisciplinary teams models) targeting patients with one or more chronic conditions, and to identify outcome measures/indicators of effectiveness, we conducted a systematic review of published systematic reviews and meta-analyses. Included reviews comprise ICIs targeting adult patients with one or more long-term conditions. We searched MEDLINE, CINAHL and the Cochrane Database of Systematic Reviews: 60 reviews were included in the final analysis; 28 reviews evaluated ICIs focused on self-management, 4 on case management, 10 on discharge management and 5 on multidisciplinary teams; 13 reviews assessed multiple interventions that were labelled as complex. Across all reviews, only 19 reviews included intervention with multiple ICIs. Overall, interventions with multiple components, compared with interventions with single components, were more likely to improve hospital use outcomes effectively. Clinical/lifestyle/condition-specific outcomes were more likely to be improved by self-management interventions. Outcome measures identified could be classified into three main categories: organisational, patient-centred and clinical/lifestyle/condition-specific. The findings of this review may provide inputs to future design and evaluation of ICIs.

Whole-Exome Sequencing Identifies a Recurrent Small In-Frame Deletion in MYO15A Causing Autosomal Recessive Nonsyndromic Hearing Loss in 3 Iranian Pedigrees.

BACKGROUND: Hearing loss (HL) is the most prevalent and genetically heterogeneous sensory disabilities in humans throughout the world. METHODS: In this study, we used whole-exome sequencing (WES) to determine the variant causing autosomal recessive nonsyndromic hearing loss (ARNSHL) segregating in 3 separate Iranian consanguineous families (with 3 different ethnicities: Azeri, Persian, and Lur), followed by cosegregation analysis, computational analysis, and structural modeling using the I-TASSER (Iterative Threading ASSEmbly Refinement) server. Also, we used speech-perception tests to measure cochlear implant (CI) performance in patients. RESULTS: One small in-frame deletion variant (MYO15A c.8309_8311del (p.Glu2770del)), resulting in deletion of a single amino-acid residue was identified. We found it to be cosegregating with the disease in the studied families. We provide some evidence suggesting the pathogenesis of this variant in HL based on the American College of Medical Genetics (ACMG) and Genomics guidelines. Evaluation of auditory and speech performance indicated favorable outcome after cochlear implantation in our patients. CONCLUSIONS: The findings of this study demonstrate the utility of WES in genetic diagnostics of HL.

Development of Liposome-Based Immunoassay for the Detection of Cardiac Troponin I.

Cardiovascular diseases (CVDs) are one of the foremost causes of mortality in intensive care units worldwide. The development of a rapid method to quantify cardiac troponin I (cTnI)-the gold-standard biomarker of myocardial infarction (MI) (or "heart attack")-becomes crucial in the early diagnosis and treatment of myocardial infarction (MI). This study investigates the development of an efficient fluorescent "sandwich" immunoassay using liposome-based fluorescent signal amplification and thereby enables the sensing and quantification of serum-cTnI at a concentration relevant to clinical settings. The calcein-loaded liposomes were utilized as fluorescent nano vehicles, and these have exhibited appropriate stability and efficient fluorescent properties. The standardized assay was sensitive and selective towards cTnI in both physiological buffer solutions and spiked human serum samples. The novel assay presented noble analytical results with sound dynamic linearity over a wide concentration range of 0 to 320 ng/mL and a detection limit of 6.5 ng/mL for cTnI in the spiked human serum.

Skeletal manifestations of congenital syphilis: Rare but clinically relevant.

Congenital syphilis occurs as a result of maternal transmission of treponema pallidum in utero. This condition is mainly diagnosed by treponemal and non-treponemal serologic tests. However, both maternal nontreponemal and treponemal IgG antibodies can be transferred through the placenta to the fetus, thus complicating its interpretation soon after birth. We report a case of a neonate with congenital syphilis whose mother became infected after the first trimester of pregnancy. We report how skeletal radiographs expedite the clinical decision-making process and direct further management of neonates. This case also highlights the need for repeated syphilis screening in the latter part of pregnancy.

Fluorescent Immunoassays for Detection and Quantification of Cardiac Troponin I: A Short Review.

Cardiovascular diseases are considered one of the major causes of human death globally. Myocardial infarction (MI), characterized by a diminished flow of blood to the heart, presents the highest rate of morbidity and mortality among all other cardiovascular diseases. These fatal effects have triggered the need for early diagnosis of appropriate biomarkers so that countermeasures can be taken. Cardiac troponin, the central key element of muscle regulation and contraction, is the most specific biomarker for cardiac injury and is considered the "gold standard". Due to its high specificity, the measurement of cardiac troponin levels has become the predominant indicator of MI. Various forms of diagnostic methods have been developed so far, including chemiluminescence, fluorescence immunoassay, enzyme-linked immunosorbent assay, surface plasmon resonance, electrical detection, and colorimetric protein assays. However, fluorescence-based immunoassays are considered fast, accurate and most sensitive of all in the determination of cardiac troponins post-MI. This review represents the strategies, methods and levels of detection involved in the reported fluorescence-based immunoassays for the detection of cardiac troponin I.