Interplay between hippocampal TACR3 and systemic testosterone in regulating anxiety-associated synaptic plasticity

Tachykinin receptor 3 (TACR3) is a member of the tachykinin receptor family and falls within the rhodopsin subfamily. As a G protein-coupled receptor, it responds to neurokinin B (NKB), its high-affinity ligand. Dysfunctional TACR3 has been associated with pubertal failure and anxiety, yet the mechanisms underlying this remain unclear. Hence, we have investigated the relationship between TACR3 expression, anxiety, sex hormones, and synaptic plasticity in a rat model, which indicated that severe anxiety is linked to dampened TACR3 expression in the ventral hippocampus. TACR3 expression in female rats fluctuates during the estrous cycle, reflecting sensitivity to sex hormones. Indeed, in males, sexual development is associated with a substantial increase in hippocampal TACR3 expression, coinciding with elevated serum testosterone and a significant reduction in anxiety. TACR3 is predominantly expressed in the cell membrane, including the presynaptic compartment, and its modulation significantly influences synaptic activity. Inhibition of TACR3 activity provokes hyperactivation of CaMKII and enhanced AMPA receptor phosphorylation, associated with an increase in spine density. Using a multielectrode array, stronger cross-correlation of firing was evident among neurons following TACR3 inhibition, indicating enhanced connectivity. Deficient TACR3 activity in rats led to lower serum testosterone levels, as well as increased spine density and impaired long-term potentiation (LTP) in the dentate gyrus. Remarkably, aberrant expression of functional TACR3 in spines results in spine shrinkage and pruning, while expression of defective TACR3 increases spine density, size, and the magnitude of cross-correlation. The firing pattern in response to LTP induction was inadequate in neurons expressing defective TACR3, which could be rectified by treatment with testosterone. In conclusion, our study provides valuable insights into the intricate interplay between TACR3, sex hormones, anxiety, and synaptic plasticity. These findings highlight potential targets for therapeutic interventions to alleviate anxiety in individuals with TACR3 dysfunction and the implications of TACR3 in anxiety-related neural changes provide an avenue for future research in the field.

Caregivers' knowledge and medication adherence in children with thyroid disorders: an exploratory study

OBJECTIVES

Many thyroid disorders in children demand long-term therapy. The parent's understanding of the child's condition is of utmost importance for adherence to treatment. The study objective was to assess the knowledge, medication adherence, reasons for non-adherence, and their relationship with various clinical parameters.

METHODS

An exploratory, cross-sectional study with a total enumeration sampling technique was conducted between July 2022 and September 2022. Children and young adults aged ≤18 years who were diagnosed with a thyroid disorder and taking medications for at least 3 months were included. Data were collected by interviewing parents using the Adherence to Refills and Medications Scale (ARMS) and structured knowledge questionnaire.

RESULTS

Parents of 102 children were interviewed. The mean age of the children was 9.2 ± 0.4 years; 58 (57 %) were girls. The mean duration of treatment was 5.5 ± 0.3 years. Many (66 %) informants were mothers. Three-fourths (75.5 %) of parents were educated up to senior secondary and above. Most (91.2 %) of parents had poor knowledge about the disease and its management. Poor disease knowledge was significantly linked to lower education (p<0.001). Nonetheless, strong adherence (>80 %) was noted on the ARMS scale. No significant correlation was found between physical growth, thyroid function, and adherence/knowledge (p-values 0.20-0.71).

CONCLUSIONS

The caregivers' knowledge of thyroid disorders was poor and related to their educational level. There is a need to use clear language and ensure that parents have an adequate understanding of their child's condition. Healthcare professionals should assess and address gaps in parental knowledge and adherence.

Decay-Associated Fluorescence for Boron Determination in Uranium-Based Nuclear Fuels

Herein is reported a novel as well as simple, sensitive, and cost-effective method for determination of boron by time-resolved fluorescence spectrometry in uranium-based nuclear fuels. Boron is complexed with fluorescent ligand chromotropic acid, and the complex formed is a measure of boron. Since the steady-state fluorescence spectra of excess ligand and complex are overlapping, the developed method emphasizes the power of time resolution. The signatory fluorescence decay times of ligand and complex are employed to derive their decay-associated spectra (DAS) and, thereby, spectroscopically eliminate the high background of ligand fluorescence. The calibration plot has a wide linear dynamic range of 5-100 ppb with r2 better than 0.998. Precision is better than 5% at the 10 ppb level and 4% at the 50 ppb level (n = 9). The detection limit is 1.5 ppb, and recovery of spiked boron (25 ppb) from the uranium samples was better than 94%. The developed method was validated by analyzing U3O8-based ILCE Standards and applied to enriched uranium fuel samples. The main advantage of the developed method is a reduction in sample size requirement due to better sensitivity and selectivity. This in turn reduces the load of uranium recovery from analytical waste, especially in the case of enriched uranium samples. Additionally, it eliminates the need of organic solvents/medium.

Atypical Presentations of Childhood Simple Partial Seizures: a Case Series

Childhood epilepsy can masquerade as a variety of psychiatric disorders or behavioural abnormalities. Differentiating between simple partial seizure and psychiatric disorders remains a challenge. We report on three children with simple partial seizure, each presented atypically with migraine, tingling sensations, and/or crying spells. When dealing with atypical symptomatology, clinicians should utilise a multidirectional, rather than unidirectional, diagnostic approach when making their diagnosis.

Validation of secretory Immunoglobulin A (IgA) for early and efficient diagnosis of Pseudomonas aeruginosa lung infection

Pseudomonas aeruginosa is a gram-negative bacterium that is considered to be a major causal organism of nosocomial infection. This study brought data-specific evidence to reveal the efficacy of secretory Immunoglobulin A (IgA) measurement in diagnosing pulmonary P. aeruginosa infection and claims its validation as a diagnostic marker. This study has included controls and patients of Pseudomonas and grouped them into four, namely, controls, chronic cases, intermittent cases, and negative group. The last group, that is, the "Negative" group, is the ones who had a history of infection but currently showed negative blood culture. The level of sIgA was quantified in all the patients and the controls and then their status of pulmonary infection was determined by their blood culture. ANOVA and Pearson Chi-Square were employed for showing the association between sIgA and pulmonary infection. The mean value of salivary sIgA has been found the highest in chronic cases followed by Intermittent cases and Negative Infections. The boxplot diagram showed several parameters of sIgA quantification in each group and control. ANOVA and Pearson Chi-square (P<0.005) tests showed a significant association between sIgA level in saliva and pulmonary infection of P. aeruginosa. The ROC curve was plotted to determine the cut-off value of sIgA (sIgA≧13.09 U/ml) for efficient clinical diagnosis of pulmonary P. aeruginosa infection. The study has validated statistically that quantification of salivary sIgA can be used in clinical practice for early diagnosis of pulmonary infection of P. aeruginosa.

Frequency-Dependent Squeezed Vacuum Source for the Advanced Virgo Gravitational-Wave Detector

In this Letter, we present the design and performance of the frequency-dependent squeezed vacuum source that will be used for the broadband quantum noise reduction of the Advanced Virgo Plus gravitational-wave detector in the upcoming observation run. The frequency-dependent squeezed field is generated by a phase rotation of a frequency-independent squeezed state through a 285 m long, high-finesse, near-detuned optical resonator. With about 8.5 dB of generated squeezing, up to 5.6 dB of quantum noise suppression has been measured at high frequency while close to the filter cavity resonance frequency, the intracavity losses limit this value to about 2 dB. Frequency-dependent squeezing is produced with a rotation frequency stability of about 6 Hz rms, which is maintained over the long term. The achieved results fulfill the frequency dependent squeezed vacuum source requirements for Advanced Virgo Plus. With the current squeezing source, considering also the estimated squeezing degradation induced by the interferometer, we expect a reduction of the quantum shot noise and radiation pressure noise of up to 4.5 dB and 2 dB, respectively.

Serum Expression Level of MicroRNA-122 and its Significance in different Stages of Hepatitis B Virus Infection

This study aims to determine the serum expression level of miRNA-122 and its significance in the different stages of Hepatitis B virus infection. The study subjects were recruited and grouped for Hepatitis B associated with Chronic Hepatitis B infection, hepatic sclerosis, hepatocellular carcinoma, and healthy controls were also considered. Venous blood was collected from the participants including the controls and routine blood tests and quantification of miRNA-122 were done and analyzed in each case of hepatitis B infection and compared with that of healthy controls. The miRNA-122 was determined, which came to be highest in patients with Chronic Hepatitis B while patients with hepatic sclerosis and patients with hepatocellular carcinoma showed a subsequent number of copies. The number of copies of miRNA-122 in the CHB, hepatic sclerosis, and HCC group was significantly higher than in the healthy control. The quantification of miRNA-122 and subsequently plotting the ROC curve has shown that miRNA-122 can be considered as a biomarker of hepatitis B for screening and diagnosis purposes.

Evaluation of a nurse-led counselling intervention on selected outcome variables for parents of children with congenital adrenal hyperplasia

OBJECTIVES

Long-term care of children with congenital adrenal hyperplasia (CAH) has psycho-social implications for parents. Experts recommend a customized educational program for parents to facilitate their psychological adaptation and improve disease management. Such educational programs often provided by nurse counsellors are well evaluated in developed countries. There is a dearth of data on nurse-led counselling in the context of less developed countries. We aimed to evaluate the effect of a nurse-led counselling intervention on various psycho-social outcomes among parents of children with CAH.

METHODS

Fifty consecutive parents of children with CAH attending an outpatient clinic at a tertiary-care teaching hospital were enrolled. Parents' stress level, stigma, knowledge, practices, and treatment adherence were assessed by using Cohen's Perceived Stress Scale (PSS), DSD Stigma scale, and HILL-Bon Medication Adherence Scale (HB-MAS). Three educational counselling sessions were conducted within a month's gap, using PowerPoint presentations and a booklet. Assessment of outcomes was done at baseline and at the end of the third session.

RESULTS

At baseline, the majority (90%) of the parents had moderate stress. Half of the parents had mild and the rest had moderate stigma. After the intervention, the majority (94%) of parents had shifted to mild levels of stress and stigma. At baseline, 86% of the parents had poor knowledge about the disease whereas post-intervention, 80% were having good knowledge. Disease management practices and treatment adherence also improved after the intervention.

CONCLUSIONS

Nurse-led counselling was effective in reducing psycho-social problems, increasing knowledge, as well as improving practices and treatment adherence.

The influence of prenatal screening on the contemporary operative outcomes and functional alleviation after vascular ring surgery in children

Objective: The impact of prenatal screening on contemporary operative outcomes and functional alleviation during pediatric Vascular Ring Surgery (VRS) is analysed in this research. Methods:All patients who had surgical treatment of an isolated VR at the Texas Children’s Hospitalbetween 1996 and 2018were included in the study. Patients who simultaneously underwent intracardiac repair were disqualified. Other congenital cardiac conditions, clinical symptomatology, contemporary surgical intervention, perioperative outcome, reoperation rates, functional alleviation, and complications were all examined in the data analysis.To examine the data for this investigation, we employed SPSS 13.0.Results: 148 participants were chosen for analysis. Of the 148, 72(48.6%)have a Double Aortic Arch (DAA), 69(47.2%) have a ligamentum and a normal left subclavian artery or Right Aortic Arch (RAA) with a left-sided ductus, 5 (2.7%)have an RAA, Left Descending Aorta (LDA) and 2(1.3%) had RAA, Left Ligamentum Arteriosum (LLA), mirror-image branching. Right aortic arch vascular ring(RAAVR) aregeneral than Double Aortic Arch Vascular Ring (DAAVR): 31 patients had the earlier, with a frequency of 5.7 per 10,000 live births, whereas 6 patients had the latter, with an incidence of 1.1 per 10,000 live births (p = 0.0001).Conclusion: VRs are a prevalent form of congenital cardiovascular abnormality, especially when they affect the right aortic arch. Additionally, prenatal screening reveals a significant percentage of VRs.

Restoration of Altered Oncogenic and Tumor Suppressor microRNA Expression in Breast Cancer and Colorectal Cancer Cell using Epicatechin

BACKGROUND

MicroRNAs (miRNA) are small non-coding RNAs that regulate the function of mRNA post-transcriptionally in a tissue-specific manner. miRNA expressions are heavily dysregulated in human cancer cells through various mechanisms, including epigenetic changes, karyotype abnormalities, and miRNA biogenesis defects. miRNAs may act as either oncogenes or tumor suppressors under different conditions. Epicatechin is a natural compound found in green tea which possesses antioxidant and antitumor properties.

OBJECTIVE

The objective of this study is to investigate the effect of epicatechin treatment on the expression level of several oncogenic and tumor suppressor miRNAs in breast and colorectal cancer cell lines (MCF7 and HT-29) and identify its mechanism of action.

METHODS

The MCF-7 and HT29 cells were treated with epicatechin for 24 hours and untreated cells were considered control cultures. miRNA was isolated and qRT-PCR was used to measure the expression profile changes of different oncogenic and tumor suppressor miRNAs. Furthermore, the mRNA expression profile was also screened at different concentrations of epicatechin.

RESULTS

Our results showed several-fold changes in miRNAs expression level, which is cell line specific. Also, epicatechin at different concentrations induces biphasic changes in mRNA expression levels in both cell lines.

CONCLUSION

Our findings first time demonstrated that epicatechin can reverse the expression of these miRNAs and may trigger the cytostatic effect at a lower concentration.

Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO's and Advanced Virgo's Third Observing Run

We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2  M_{⊙} and 1.0  M_{⊙} in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend our previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio q≥0.1. We do not report any gravitational-wave candidates. The most significant trigger has a false alarm rate of 0.14  yr^{-1}. This implies an upper limit on the merger rate of subsolar binaries in the range [220-24200]  Gpc^{-3} yr^{-1}, depending on the chirp mass of the binary. We use this upper limit to derive astrophysical constraints on two phenomenological models that could produce subsolar-mass compact objects. One is an isotropic distribution of equal-mass primordial black holes. Using this model, we find that the fraction of dark matter in primordial black holes in the mass range 0.2  M_{⊙}<m_{PBH}<1.0  M_{⊙} is f_{PBH}≡Ω_{PBH}/Ω_{DM}≲6%. This improves existing constraints on primordial black hole abundance by a factor of ∼3. The other is a dissipative dark matter model, in which fermionic dark matter can collapse and form black holes. The upper limit on the fraction of dark matter black holes depends on the minimum mass of the black holes that can be formed: the most constraining result is obtained at M_{min}=1  M_{⊙}, where f_{DBH}≡Ω_{DBH}/Ω_{DM}≲0.003%. These are the first constraints placed on dissipative dark models by subsolar-mass analyses.

Identification of Candidate Immune System MicroRNAs Differentially Found in Colostrum and Milk Exosomes

BACKGROUND

The fetus grows in a sterile womb environment. After birth, the newborn immune system has two immediate hurdles to clear. First immediate suppression of the womb compatible immune system and turn on the immune system of the newborn that can counter the antigenic world. The underlying mechanism of immune fluctuation by milk microRNAs (miRNAs) can be crucial for the treatment of critical or premature newborn.

METHODS

We collected fourteen samples of each colostrum and mature milk from lactating mothers, four samples of each were used for microarray analysis, and the other ten were used for miRNA expression profiling by real-time PCR.

RESULTS

From the microarray, 154 differentially expressed miRNAs were identified, whereas 49 miRNAs were revealed as immune-related miRNAs based on a literature study. Among the 49 miRNAs, 33 were already shown as strongly validated immune-related miRNAs (validated by qPCR, Western Blot, and Luciferase assay) and were considered for further analysis. Twenty-two miRNA expressions were analysed by real-time PCR as their Ct values were within considerable limits. Twelve numbers of miRNAs were significantly downregulated in mature milk compared to colostrum, which were again subjected to bioinformatics analysis to predict the biological mechanisms behind the differentially expressed miRNAs.

CONCLUSION

This study shed light on the human milk exosome miRNA expression dynamics during lactation and their possible role in the gradual skewing of the newborns' immune system. The information is crucial for the development and onset of sepsis in premature newborns in the NICU.

Atypical presentations of cutaneous tuberculosis: Series of 10 cases

Cutaneous tuberculosis classically presents as Lupus vulgaris, scrofuloderma, tuberculosis verrucose cutis and tubercular abscess. Hypersensitivity reaction to the bacilli leads to Lichen scrofulosorum and papulonecrotic tuberculids. At the same time, it can have myriad of clinical presentations, many of which are still undescribed. It is important to regularly update ourselves with these unusual manifestations so as to ensure early treatment and reduction of overall morbidity. In this case series tuberculosis manifesting as rapidly progressing diffuse facial granulomas, sporotrichoid tuberculosis, tuberculosis mimicking squamous cell carcinoma, scrofuloderma as tubercular ulcer, lupus vulgaris with nasal septal perforation, lupus vulgaris resembling furuncle, psoriasis, dermatitis and BT Hansen are described in immunocompetent individuals. These cases highlight the importance of recognition of atypical forms of cutaneous tuberculosis to minimize scarring and dissemination of bacilli.

Morphometry of Adult Human Trachea and its Clinical Implications: A Cadaveric Study in Northern India

Introduction: There is a wide variation in different dimensions of trachea in same age group as well as in different age groups in both sexes. Besides anthropometry, the study of these morphometric variations is of profound clinical importance as it may help the pulmonologists to understand the aetiology of several pulmonary diseases like bronchitis, emphysema, pulmonary fibrosis and tuberculosis. Aim: To determine the variations in the dimensions of human trachea in the cadavers of age group 20-70 years in Northern India. Materials and Methods: This cross-sectional study was conducted in the Department of Anatomy, Sri Guru Ram Das Institute of Medical Sciences and Research, Amritsar, Punjab, India, during March 2019 to December 2021. A total of 40 tracheas were obtained from adult human cadavers which were included in present study by convenience sampling. The trachea was dissected with the larynx and principal bronchi and measurements were taken. Data collected was saved on Microsoft excel and was analysed by calculating percentages, mean and Standard Deviation (SD). Results: Mean length of trachea was 109.25 mm, mean subcarinal angle was 75.45°. Mean anteroposterior diameter, transverse diameter, mean height and distance between posterior ends of rings was 16.70 mm and 18.10 mm, 4.53 mm and 12.15 mm respectively and mean of inter-ring distance between 1st-2nd, 5th6th, 10th-11th, 15th-16th Tracheal rings was 1.12 mm. Conclusion: The present study revealed a wide variation in different dimensions viz. length, transverse and anteroposterior diameters, mean height, inter-tracheal ring distance and the subcarinal angle. Accurate anatomical knowledge of the variations is essential for understanding the pathophysiology and management of different airway disorders and in reconstructive surgery of tracheobronchial tree.

Bioremediation of heavy metals from wastewater: a current perspective on microalgae-based future

Heavy metals-containing drinking water and wastewater are posing a severe threat to the environment, and living beings on land, air and water. Different conventional, advanced nanomaterials-based and biological method has been employed for the treatment of heavy metals. Among the biological methods, microalgae are an important group of micro-organisms that have numerous environmental applications and can remediate heavy metals from wastewater. Also, it has numerous advantages over conventional remediation processes. Microalgae cells can uptake the heavy metal via different physiological and biological methods and are utilized as a nutrient source to regulate its metabolic process for the production of biomass. Furthermore, the enhancement in heavy metal removal efficiency can be improved using different strategies such as immobilization of algal cells, development of algal consortia and designing of microalgae-based nanocomposite materials. Also, it can significantly contribute towards environmental sustainability and future. Thus, the review provides a critical overview of heavy metals and their existence along with their negative effects on humans. This review provides insight on recent advanced nanomaterial approaches for the removal of heavy metals, overviews of microalgae-based heavy metal uptake mechanisms and their potential for the amputation of different heavy metals. Furthermore, the special focus is on recent strategies that enhance heavy metal removal efficiency and contribute towards sustainability for the development of a microalgae-based future.

Rapid diagnostic methods for SARS-CoV-2 (COVID-19) detection: an evidence-based report

Since December 2019, the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has been a global health concern. The transmission method is human-to-human. Since this second wave of SARS-CoV-2 is more aggressive than the first wave, rapid testing is warranted to use practical diagnostics to break the transfer chain. Currently, various techniques are used to diagnose SARS-CoV-2 infection, each with its own set of advantages and disadvantages. A full review of online databases such as PubMed, EMBASE, Web of Science, and Google Scholar was analyzed to identify relevant articles focusing on SARS-CoV-2 and diagnosis and therapeutics. The most recent article search was on May 10, 2021. We summarize promising methods for detecting the novel Coronavirus using sensor-based diagnostic technologies that are sensitive, cost-effective, and simple to use at the point of care. This includes loop-mediated isothermal amplification and several laboratory protocols for confirming suspected 2019-nCoV cases, as well as studies with non-commercial laboratory protocols based on real-time reverse transcription-polymerase chain reaction and a field-effect transistor-based bio-sensing device. We discuss a potential discovery that could lead to the mass and targeted SARS-CoV-2 detection needed to manage the COVID-19 pandemic through infection succession and timely therapy.

Prime Risk Factors to Act as Biomarkers for the Diagnosis of Myocardial Infarction

Aims: This study was done to find out retrospective case-control with respect to myocardial infarction diagnosis on the basis of biochemical markers and lipid profile characteristics. Design and Setting: This study was conducted at the Department of Biochemistry and sample collection at LPS Institute of Cardiology & Cardiac Surgery Department, Kanpur. Methods: The total number of subjects participated in this study (n=178), of either sex (with age>65years) were included in this study from the case collected from Outpatient Department (OPD) and Indoor Patient Department (IPD) and control from patients attendant, which consisted of two subject groups: The group I: myocardial infarction (cases) n= 89 and Group II: Healthy Subjects (controls) n= 89. Laboratory methodology was performed to determine the prime important risk factors such as body mass index (BMI), blood pressure and lipid profile characteristics associated with myocardial infarction. Risk factors were analyzed by Chi-square and Pearson correlation, receiver operating characteristic (ROC) curve method considered significant when the critical, P <0.01level was set up, for a 95% confidence interval. Results: Total number of (n=178) participants (males=65; mean age of 65 years, females=24, mean age of 58 years) at 95% CI were considered in this study, out of these, 89 individuals were expected to have risk of myocardial infarction (especially observed in case groups), and remaining 89 individuals were considered as control groups, all were included as, study subjects. Conclusion: The current study concludes the importance of myocardial infarction in presence of prognostic inflammatory markers: higher IL-6 and plasma fibrinogen level, instead of high-sensitivity C-reactive protein, incase and control groups.

Comparison of different optimizers implemented on the deep learning architectures for COVID-19 classification

COVID-19 is the present-day pandemic around the globe. WHO has estimated that approx 15% of the world's population may have been infected with coronavirus with a large number of population on the verge of being infected. It is quite difficult to break the virus chain since asymptomatic patients can result in the spreading of the infection apart from the seriously infected patients. COVID-19 has many similar symptoms to SARS-D however, the symptoms can worsen depending on the immunity power of the patients. It is necessary to be able to find the infected patients even with no symptoms to be able to break the spread of the chain. In this paper, the comparison table describes the accuracy of deep learning architectures by the implementation of different optimizers with different learning rates. In order to remove the overfitting issue, different learning rate has been experimented. Further in this paper, we have proposed the classification of the COVID-19 images using the ensemble of 2 layered Convolutional Neural Network with the Transfer learning method which consumed lesser time for classification and attained an accuracy of nearly 90.45%.

Current updates on the European and WHO registered clinical trials of coronavirus disease 2019 (COVID-19)

Coronavirus disease 2019 (COVID-19) is a major public health concern currently. To date, there are no approved antiviral drugs or vaccines against this transmissible disease. This report sheds light on available information for a better understanding of clinical trials and pharmacotherapy related to COVID-19. MEDLINE, PubMed, EMBASE, Scopus databases, Web of Science, WHO, and EU clinical trial sites were used to perform comparative analysis. Information was collected on the use of therapeutic agents for human therapy in patients with COVID-19 up to May 2020. We have extracted data from 60 clinical trials. Amongst these trials, 34 were from the European Union database of clinical trials and 26 from the National Institute of Health. The data selection procedure includes active, completed, and recruitment in progress status. Most of the clinical trials are ongoing and hence, there is a lack of precise results for the treatment.There is a lack of high-quality clinical evidence. The protocol to be developed requires large randomized clinical trials with a combination of available drugs and prospective therapies. We propose the usage of a large number of cases and different statistical analyses to conduct systematic clinical trials. This could provide comprehensive information about the clinical trial and potential therapeutic progress.

Limited effectiveness of four oral antifungal drugs (fluconazole, griseofulvin, itraconazole and terbinafine) in the current epidemic of altered dermatophytosis in India: results of a randomized pragmatic trial

BACKGROUND

Dermatophytic infections have undergone unprecedented changes in India in the recent past. Clinical trials to find out the effectiveness of the four main oral antifungal drugs are lacking.

OBJECTIVES

We tested the effectiveness of oral fluconazole, griseofulvin, itraconazole and terbinafine in chronic and chronic relapsing tinea corporis, tinea cruris and tinea faciei in an investigator-initiated, randomized, pragmatic trial.

METHODS

Two hundred patients with microscopy-confirmed tinea were allocated to four groups (50 patients in each group): fluconazole 5 mg kg^-1 per day, griseofulvin 10 mg kg^-1 per day, itraconazole 5 mg kg^-1 per day and terbinafine 7·5 mg kg^-1 per day. Allocation was performed by concealed block randomization and the patients were treated for 8 weeks or until cure. Effectiveness was calculated based on intention-to-treat analysis. The trial was registered with the Clinical Trials Registry India (CTRI/2017/04/008281).

RESULTS

At 4 weeks, all drugs were similarly ineffective, with cure rates being 8% or less (P = 0·42). At 8 weeks, the numbers of patients cured were as follows: fluconazole 21 (42%), griseofulvin seven (14%), itraconazole 33 (66%) and terbinafine 14 (28%) (P < 0·001). Itraconazole was superior to fluconazole, griseofulvin and terbinafine (adjusted P ≤ 0·048). Relapse rates after 4 and 8 weeks of cure with the four treatments were not different (P ≥ 0·42). Numbers needed to treat (vs. griseofulvin), calculated on the basis of cure rates at 8 weeks, were as follows: fluconazole 4, itraconazole 2 and terbinafine 8.

CONCLUSIONS

The results show limited effectiveness of all four antifungal drugs. In view of cure rates and the number needed to treat, itraconazole is the most effective drug, followed by fluconazole (daily), terbinafine and then griseofulvin, in chronic and chronic relapsing dermatophytosis in India. What is already known about this topic? Oral antifungal drugs are considered to have a high cure rate in tinea corporis, tinea cruris and tinea faciei. Unprecedented changes have been noticed in the last few years in India in the morphology, course and treatment responsiveness of tinea; however, data about the effectiveness of oral antifungals are lacking. What does this study add? Our results show limited effectiveness of four oral antifungal drugs (fluconazole, griseofulvin, itraconazole and terbinafine) in the current epidemic of altered dermatophytosis in India. Among the four drugs tested, oral itraconazole is the most effective. Linked Comment: Elewski. Br J Dermatol 2020; 183:798-799.

NWChem: Past, present, and future

Specialized computational chemistry packages have permanently reshaped the landscape of chemical and materials science by providing tools to support and guide experimental efforts and for the prediction of atomistic and electronic properties. In this regard, electronic structure packages have played a special role by using first-principle-driven methodologies to model complex chemical and materials processes. Over the past few decades, the rapid development of computing technologies and the tremendous increase in computational power have offered a unique chance to study complex transformations using sophisticated and predictive many-body techniques that describe correlated behavior of electrons in molecular and condensed phase systems at different levels of theory. In enabling these simulations, novel parallel algorithms have been able to take advantage of computational resources to address the polynomial scaling of electronic structure methods. In this paper, we briefly review the NWChem computational chemistry suite, including its history, design principles, parallel tools, current capabilities, outreach, and outlook.

Impact of Cardiovascular Factors on Pulse Wave Velocity and T otal Vascular Resistance in Different Age Group Patients with Cardiovascular Disorders

Background: Pulse Wave Velocity (PWV) is the propagation speed of the wave-induced along the aorta and arterial tree, each time the heart beats. PWV increases with increased arterial stiffness, thus establishing it as a reliable prognostic marker for cardiovascular morbidity and mortality. On the other hand, Total Vascular Resistance (TVR) is the overall resistance offered by systemic circulation and pulmonary circulation. This resistance needs to be overcome in order to create the flow of blood through the circulatory system. The goal of this study was to investigate the influence of different cardiovascular factors on arterial stiffness and vascular resistance in CVD patient from eastern India population.

Methods: Total of 782 patients with Cardiovascular Disease (CVD) like hypertension, Ischemic heart disease, Congestive cardiac failure and peripheral arterial disease were included to evaluate the cardiovascular hemodynamic and non-hemodynamic parameter by oscillometric method and investigated those factors on PWV and TVR in subjects of both sexes aged between 15 to 87 years.

Results: The old age (> 55 years) was found to have greatest impact on PWV as compared with younger age group. Systolic Blood Pressure (SBP), Heart Rate (HR), augmentation pressure and Body Surface Area (BSA) had a positive association with the PWV. Augmentation Index and Body Mass Index (BMI) had a negative impact on the PWV.

Conclusion: Despite the limitations, like unequal number of male and female participants, wide variation of the age of the subjects and analyzing association of many factors at a time, our large and community-based study show individual blood pressure and pulse pressure depending on complex interaction between large arteries and arterioles. This study sheds light on the relationship between proximal and distal part (PWV and TVR) of the arterial tree as well as their association with different hemodynamic and non-hemodynamic parameters.

Lauric Acid Modulates Cancer-Associated microRNA Expression and Inhibits the Growth of the Cancer Cell

BACKGROUND

microRNAs are known to regulate various protein-coding gene expression posttranscriptionally. Fatty acids are cell membrane constituents and are also known to influence the biological activities of the cells like signal transduction, growth and differentiation of the cells, apoptosis induction, and other physiological functions. In our experiments, we used lauric acid to analyse its effects on human cancerous cell lines.

OBJECTIVE

Our objective was to speculate the miRNA expression profile in lauric acid treated and untreated cancerous cell lines and further study the metabolic pathways of the targeted tumour suppressor and oncogenes.

METHODS

The KB cells and HepG2 cells were treated with lauric acid and miRNA was isolated and the expression of tumour suppressor and oncogenic miRNA was measured by quantitative PCR. The untreated cells were used as control. The metabolic pathways of the target tumour suppressor and oncogenes were examined by GeneMANIA software.

RESULTS

Interestingly, the lauric acid treatment suppresses the expression of oncogenic miRNA and significantly upregulated the expression of some tumour suppressor miRNAs. GeneMANIA metabolic pathway revealed that the upregulated tumour suppressor miRNAs regulate several cancer-associated pathways such as DNA damage, signal transduction p53 class mediator, stem cell differentiation, cell growth, cell cycle phase transition, apoptotic signalling pathway, cellular response to stress and radiation, etc. whereas oncogenic miRNAs regulate the cancer-associated pathway like cell cycle phase transition, apoptotic signalling pathway, cell growth, response to oxidative stress, immune response activating cell surface protein signalling pathway, cyclin-dependent protein kinase activity, epidermal growth factor receptor signalling pathways, etc. Conclusion: In our study, we found that lauric acid works as an anticancer agent by altering the expression of miRNAs.

In Vitro Anticancer Activity of Virgin Coconut Oil and its Fractions in Liver and Oral Cancer Cells

BACKGROUND

Coconut oil is an edible oil obtained from fresh, mature coconut kernels. Few studies have reported the anticancer role of coconut oil. The fatty acid component of coconut oil directly targets the liver by portal circulation and as chylomicron via lymph. However, the anti-cancer activity of coconut oil against liver cancer cells and oral cancer cells is yet to be tested. The active component of coconut oil, that is responsible for the anticancer activity is not well understood. In this study, three different coconut oils, Virgin Coconut Oil (VCO), Processed Coconut Oil (PCO) and Fractionated Coconut Oil (FCO), were used.

OBJECTIVE

Based on previous studies, it can be hypothesized that fatty acids in coconut oil may have anticancer potential and may trigger cell death in cancer cell lines.

METHODS

Each cell line was treated with different concentrations of Virgin Coconut Oil (VCO), Processed Coconut Oil (PCO) and Fractionated Coconut Oil (FCO). The treated cells were assayed by MTT after 72 hr of incubation. The fatty acid composition of different coconut oils was analyzed by gas chromatography.

RESULT

Different concentrations of coconut oils were used to treat the cells. Interestingly, the anticancer efficacy of VCO, PCO and FCO was not uniform, rather the efficacy varied from cell line to cell line. Only 20% VCO showed significant anticancer activity in HepG2 cells in comparison to 80% PCO against the KB cell line. Remarkably, 20% of PCO and 5% of FCO showed potential growth inhibition in the KB cell line as compared to 80% PCO in HepG2 cells. Moreover, there was a difference in the efficacy of VCO, PCO and FCO, which might be due to their fatty acid composition. Comparing the anticancer efficacy of VCO, PCO and FCO in this study helped to predict which class of fatty acids and which fatty acid might be associated with the anticancer activity of VCO.

CONCLUSION

This study shows that VCO, PCO and FCO have anticancer efficacy and may be used for the treatment of cancer, especially liver and oral cancer.

Nimodipine attenuates the parkinsonian neurotoxin, MPTP-induced changes in the calcium binding proteins, calpain and calbindin

We have recently demonstrated neuroprotective abilities of nimodipine, an L-type voltage dependent calcium channel (VDCC) blocker in cellular and animal models of Parkinson's disease (PD). To understand the calcium regulatory mechanisms in the disease pathogenesis, the present study examined calcium regulatory proteins calbindin and calpain mRNA and protein levels employing quantitative PCR and western blot in 1-methyl-4-phenyl pyridinium ion (MPP⁺)-treated SH-SY5Y cell lines and in the striatum of mice treated with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). mRNA and protein levels of calbindin were lower, while that of calpain were higher in MPP⁺-treated SH-SY5Y cells and MPTP-treated mouse striatum as compared to their respective controls. Nimodipine pretreatment significantly attenuated these effects in the parkinsonian neurotoxin-treated SH-SY5Y cell line and in the mouse striatum. The activities of the apoptotic mediator, caspase-3 and calpain were increased in the neurotoxin-treated groups as compared to their respective controls, which was ameliorated by nimodipine pretreatment. These results suggest that parkinsonian neurotoxin-mediated dopaminergic neuronal death might involve defects in calcium regulatory proteins that control intracellular calcium homeostasis, and these could be corrected by inhibiting L-type VDCC activity. These findings support the notion that hypertensive patients who are on long-term intake of dihydropyridine have reduced risk for PD.