A Superparaelectric State in Relaxor Ferroelectric (Sr,Bi)TiO3-Bi(Mg,Ti)O3-Modified BaTiO3 Ceramics to Achieve High Energy Storage Performance.

Dielectric ceramic capacitors are highly regarded for their rapid charge-discharge, high power density, and cyclability in various advanced applications. However, their relatively low energy storage density has prompted intensive research aiming at developing materials with a higher energy density. To enhance energy storage properties, research has focused on modifying ferroelectric materials to induce relaxor ferroelectricity. The present study aims to induce a superparaelectric (SPE) state in relaxor ferroelectrics near room temperature by altering BaTiO3 ferroelectric ceramics using the (Sr,Bi)TiO3-Bi(Mg0.5Ti0.5)O3 system ((1-x)BT-x(SBT-BMT)). X-ray diffraction and Raman spectroscopy analysis demonstrated a shift in the crystal structure from tetragonal to cubic with an increasing x content. Notably, the compositions (except x = 0.1) satisfied the criteria for the SPE state manifestation near room temperature. The x = 0.2 specimen displayed characteristics at the boundary between the relaxor ferroelectric and SPE phases, while x ≥ 0.3 specimens exhibited increased SPE state fractions. Despite reduced maximum polarization, x ≥ 0.3 specimens showcased impressive energy storage capabilities, attributed to the enhanced SPE state, especially for x = 0.3, with impressive characteristics: a recoverable energy density (Wrec) of ~1.12 J/cm3 and efficiency (η) of ~94% at 170 kV/cm applied field. The good stability after the charge-discharge cycles reinforces the significance of the SPE phase in augmenting energy storage in relaxor ferroelectric materials, suggesting potential applications in high-energy density storage devices.

Epidemiology, Molecular Pathogenesis, Immuno-Pathogenesis, Immune Escape Mechanisms and Vaccine Evaluation for HPV-Associated Carcinogenesis.

Human papillomavirus (HPV) is implicated in over 90% of cervical cancer cases, with factors like regional variability, HPV genotype, the population studied, HPV vaccination status, and anatomical sample collection location influencing the prevalence and pathology of HPV-induced cancer. HPV-16 and -18 are mainly responsible for the progression of several cancers, including cervix, anus, vagina, penis, vulva, and oropharynx. The oncogenic ability of HPV is not only sufficient for the progression of malignancy, but also for other tumor-generating steps required for the production of invasive cancer, such as coinfection with other viruses, lifestyle factors such as high parity, smoking, tobacco chewing, use of contraceptives for a long time, and immune responses such as stimulation of chronic stromal inflammation and immune deviation in the tumor microenvironment. Viral evasion from immunosurveillance also supports viral persistence, and virus-like particle-based prophylactic vaccines have been licensed, which are effective against high-risk HPV types. In addition, vaccination awareness programs and preventive strategies could help reduce the rate and incidence of HPV infection. In this review, we emphasize HPV infection and its role in cancer progression, molecular and immunopathogenesis, host immune response, immune evasion by HPV, vaccination, and preventive schemes battling HPV infection and HPV-related cancers.

Role of health literacy and primary health-care access in self-care management of hypertension.

Background: Globally, hypertension is the leading risk factor for men and women and the largest contributor to premature deaths and diseases in India. Health literacy (HL) and health-care access are important determinants for self-care management of hypertension. Objectives: The purpose of this study was to estimate the prevalence of HL, health-care access, and their importance in the self-care management of hypertension. Methods: A community-based cross-sectional study was conducted among 104 known hypertensive patients for 2 months from May to June 2022. Data were collected by face-to-face interviews using a pretested, preformed, and validated questionnaire, and tabulated and analyzed using Microsoft Excel and SPSS version 20 software. Results: Most of the participants (80, 76.9%) have low levels of HL. However, more than half of the (62, 59.6%) participants were satisfied with their access to primary health care. The age of the participants ranged from 38 to 80 years, and half of them (54, 51.9%) were middle-aged adults. The majority (66, 63.5%) of the patients belonged to lower-middle socioeconomic status, and 15.4% (16) were living alone. We found poor HL, and primary health-care access is statistically significantly associated with poor self-care management. Conclusion: Our findings confirm that HL and access to primary health care are crucial factors in the self-care management of hypertension in hypertensive patients.

Expression of miR-145 and miR-18b in Peripheral Blood Samples of Head and Neck Cancer Patients.

Head and neck squamous cell carcinomas (HNSCC) is one of the most prevalent type of cancer known in Indian population. Studies are needed to identify the early biomarkers for HNSCC. MicroRNAs (miRNAs) are non-coding RNA molecules, expression of which can be used as biomarker for early diagnosis of HNSCC. For miRNA profiling total RNA, which also contained small RNAs were isolated from ten HNSCC tissue samples and adjacent control. Purity and concentration of eluted RNA was assessed using the NanoDrop1000® spectrophotometer, Reverse Transcription reaction was carried out with megaplex RT primers of pool A and pool B and the expression of selected miRNAs (miR-143/145 and miR-18a/b) was measured using TaqMan primers specific for mature miRNAs. Our study showed dramatic downregulation in expression of two miRNAs, miR-18b and miR-145 in blood samples of HNSCC patients, which are inhibitor of tumorigenesis and can be targeted as biomarker of HNSCC pathogenesis therefore developing avenues for miRNA role in prognosis and therapeutics. Supplementary Information: The online version contains supplementary material available at 10.1007/s12291-023-01119-2.

Implementation research: Road map from research to practice.

The challenge today is to make sure that the evidence available gets implemented for betterment of human wellbeing. The research which is closely associated with implementation, challenges and outcome of evidence in real life scenario is Implementation research (IR). The current prespective explains why there is a focus on IR by all icluding researchers, practitioners and policy makers. The approaches and study designs commonly used in the IR have been described. The IR is multi-disciplinary, multilevel and contextual in nature. The outcomes in IR are proximal. The article further describes the ethical issue and the way forward for IR. We need to do capacity building of practitioners, researchers and policymakers in IR.

Meta-analysis comparing diabetes in pregnancy study group India (DIPSI) vs the international association of the diabetes and pregnancy study groups (IADPSG) criteria for diagnosis of gestational diabetes among Indian population.

Despite consensus on universal screening of women at 24-28 weeks for a diagnosis of gestational diabetes, controversy remains on an appropriate criterion. The study is aimed to find out the sensitivity and specificity of Diabetes in Pregnancy Study Group India (DIPSI) criteria compared to the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) criteria for diagnosis of Gestational Diabetes Mellitus (GDM). A meta-analysis of studies comparing DIPSI as an index test to IADPSG as the reference test for diagnosing GDM was carried out. A total of 8 comparative studies were included. Pooled analysis showed a sensitivity of 0.44 [0.29 to 0.60] and specificity of 0.97 [0.94 to 0.98], which means the index test DIPSI will correctly identify only 44% of the subjects who have the disease (GDM positive) but it will also fail to identify 56% of the GDM positive subjects. Derek's funnel graph revealed fewerchances of publication bias. Though convenient, DIPSI criteria was not found to be sensitive enough for a diagnosis of GDM and missed an opportunity to improve pregnancy and subsequent long-term outcomes for a substantial number of women. Further studies should focus on comparing pregnancy outcomes for the two criteria, so that decision to adopt any criteria is more evidence-based.

A prospective randomized comparative study to evaluate the effect of palliative hypo-fractionated radiotherapy with concurrent chemotherapy versus hypo-fractionated radiotherapy alone in advanced and unresectable head and neck cancer with no metastasis.

Introduction: A short duration, palliative radiotherapy schedule for locally advanced and unresectable head and neck cancer (LAUHNC) was evaluated in terms of palliation of cancer-related symptoms and acute toxicities. Aims and objectives: The aim of the study was to compare the role and feasibility of hypo-fractionated radiotherapy with concurrent chemotherapy and hypo-fractionated radiotherapy in LAUHNC. Materials and methods: All the patients included in this study of LAUHNC were not fit for curative treatment. These patients are assessed on the basis of quality of life (QOL), tumour response, toxicities, and relief in symptoms. QOL was assessed on the basis of University of Washington QOL questionnaire version 4 before and after treatment. Patients are divided into two arms, Arm A patients received 40 Gy in ten fractions concurrent cisplatin 50 mg/m2 with weekly and Arm B patients received 40 Gy in ten fractions. To assess the tumour response response evaluation criteria in solid tumours criteria were used. Results: A total of 40 patients were enrolled in this study, with 20 patents in both arms. Three patients defaulted during treatment and one patient died during treatment. A total of 36 patients completed treatment. Before treatment common complaints was distressing pain in primary site, and difficulty in chewing and swallowing. After treatment there was reduction of pain and improvement in swallowing in both arms. Overall QOL improvement in Arm A (28.89 ± 18.44 to 46.67 ± 15.34) and in Arm B (31.11 ± 15.68 to 43.33 ± 15.72). Neither of the arms experienced grade IV mucositis and skin reaction. Conclusion: Toxicity in the form of mucositis and dermatitis was higher in the concurrent hypo-fractioned arm compared to the only hypo-fractionated radiotherapy arm during the treatment and in follow up period. The QOL in both individual arms showed statistically significant results, however when the QOL of both the arms was compared, the results were not statistically significant.

Do children separated from fathers have higher anxiety levels? A comparative analysis.

Background: There is limited literature from India on effect of fathers' deployment on the mental health of children. This cross-sectional analytical study investigates the difference in anxiety levels of children whose fathers are deployed in a field location and compares it with children currently located with their fathers. Method: Data were collected in an army school from 200 children aged 10-17 years with fathers deployed in field locations (n = 99) and fathers currently residing with the children (n = 105) via interviewer administered and self-completed Screen for Child Anxiety-Related Disorders (SCARED) questionnaire. Results: Anxiety scores were on an average, minimally raised above the cut-off level for children who had fathers deployed. In addition, panic disorder scores were also above the cut-off levels for these children. While scores were normal in all other domain, they were higher than that for children residing with their fathers, although the difference was not significant. Girls with fathers deployed had scores higher than cut-off scores for domains such as panic, separation anxiety and school avoidance, while boys had scores higher than cut-off scores only for panic disorders. However, the girls had significantly higher scores than boys in all domains. Girls in both groups (with and without father deployed) had higher scores than cut-off scores for panic disorders. Conclusion: Anxiety levels in children were not found to be unduly affected by the deployment of fathers. But girls were found to have clinically relevant panic disorder, school avoidance and separation anxiety scores as compared with boys in the similar situation of parental separation.

The Assisted Reproductive Technology (Regulation) Act, 2021: A Step in the Right Direction.

The Assisted Reproductive Technology (Regulation) Act, 2021, was passed on December 20, 2021 by an act of Parliament to regulate the functioning of assisted reproductive technology (ART) clinics and ART banks in the country. Since the dawn of in vitro fertilization (IVF), there has been a mushrooming of ART clinics in the country. There was need to supervise and regulate the functioning of these clinics and to safeguard the rights of women undergoing fertility treatment at these centers. The passing of this Act will go a long way in the better supervision, regulation, licensing, and smooth functioning of ART clinics and ART banks. The Act also brings into its ambit the controversial treatment of surrogacy and hence ensures protection of the rights of surrogate mothers. Moreover, strict implementation of the act will guarantee the success of the treatment within the legal and ethical framework.

Computed tomography severity score as a predictor of disease severity and mortality in COVID-19 patients: A systematic review and meta-analysis.

BACKGROUND: Prediction of outcomes in severe COVID-19 patients using chest computed tomography severity score (CTSS) may enable more effective clinical management and early, timely ICU admission. We conducted a systematic review and meta-analysis to determine the predictive accuracy of the CTSS for disease severity and mortality in severe COVID-19 subjects. METHODS: The electronic databases PubMed, Google Scholar, Web of Science, and the Cochrane Library were searched to find eligible studies that investigated the impact of CTSS on disease severity and mortality in COVID-19 patients between 7 January 2020 and 15 June 2021. Two independent authors looked into the risk of bias using the Quality in Prognosis Studies (QUIPS) tool. RESULTS: Seventeen studies involving 2788 patients reported the predictive value of CTSS for disease severity. The pooled sensitivity, specificity, and summary area under the curve (sAUC) of CTSS were 0.85 (95% CI 0.78-0.90, I2 =83), 0.86 (95% CI 0.76-0.92, I2 =96) and 0.91 (95% CI 0.89-0.94), respectively. Six studies involving 1403 patients reported the predictive values of CTSS for COVID-19 mortality. The pooled sensitivity, specificity, and sAUC of CTSS were 0.77 (95% CI 0.69-0.83, I2 = 41), 0.79 (95% CI 0.72-0.85, I2 = 88), and 0.84 (95% CI 0.81-0.87), respectively. DISCUSSION: Early prediction of prognosis is needed to deliver the better care to patients and stratify them as soon as possible. Because different CTSS thresholds have been reported in various studies, clinicians are still determining whether CTSS thresholds should be used to define disease severity and predict prognosis. CONCLUSION: Early prediction of prognosis is needed to deliver optimal care and timely stratification of patients.  CTSS has strong discriminating power for the prediction of disease severity and mortality in patients with COVID-19.

Iridociliary measurements using the Anterion swept-source optical coherence tomography.

Purpose: Anterior segment optical coherence tomography (AS-OCT) by a swept source can visualize the ciliary body. The study was performed for analyzing the feasibility of a new swept-source OCT (Anterion) device for measuring iris ciliary sulcus, ciliary body thickness, and iris thickness. Methods: It is a pilot study among 30 normal young participants and hospital employees with their consent. The ciliary body, iris thickness, and ciliary sulcus were measured and compared to the results in the literature. We obtained 28 good-quality results. The main outcome measures were iris thickness (near and away from the pupillary margin), ciliary body thickness, and iridociliary sulcus measurement. Results: The iris thickness 2.5 mm from the pupillary margin was 0.70 ± 0.10 mm in the right eye and 0.68 ± 0.11 in the left eye. Closer to the root, the iris thickness varied from 0.55 ± 0.16 mm (right eye) and 0.57 ± 0.12 (left eye). Ciliary body thickness: Right eye 0.59 ± 0.14mm (28 good images), left eye 0.58 ± 0.13mm; ciliary sulcus (inner angle): right eye 82.65 ± 26.6°, left eye 83.66 ± 30.1°. Conclusion: Anterion OCT is feasible in our setting for various measurements and can provide valuable inputs to ophthalmologists for the treatment of ocular diseases.

Impact of Hearing Aid Usage on Emotional and Social Skills in Persons With Severe to Profound Hearing Loss.

BACKGROUND AND OBJECTIVES: Severe to profound hearing loss impacts the capacity for verbal communication as well as the social, emotional, and overall quality of life; however, the association between socio-emotional rehabilitation and post-hearing aid use is not widely explored. This study aimed to investigate the socio-emotional change in post-hearing aid fitted individuals with severe to profound hearing loss. Materials and. METHODS: A total of 60 individuals comprised of 15 females and 45 males with severe to profound hearing loss within the age range of 40-60 years (mean age and standard deviation of 53.4±6.1), participated in this study. Participants were divided into two categories with a 10-year age interval i.e., 40-50 and 51-60 years. These participants were equally divided into hearing aid user (HAU) and non-hearing aid user (NHAU) groups. The hearing handicapped inventory for the adults-short version (HHIA-S) adapted from Weinstein & Ventry (1983) was used in this study. RESULTS: The mean social score of all the participants was significantly higher than the mean emotional score. However, no such advantage was observed between the HAU and NHAU groups. The mean social score of females in the HAU category was significantly higher than males. The mean social and emotional scores were also compared across two age categories in the age range of 40-50 and 51-60 years and revealed no significant difference between mean social and emotional score across the age categories (p=0.026). CONCLUSIONS: In individuals with severe to profound hearing loss, social rehabilitation occurs quicker than emotional. In the HAU group, socialization occurred faster in females than males. These findings suggest that a customized counselling should be developed for the social and emotional wellbeing as these two parameters improve distinctly.

Diabetes in Pregnancy Study Group India (DIPSI) and WHO (1999) diagnostic criteria for GDM: A meta-analysis.

BACKGROUND AND AIMS: The diagnosis of Gestational diabetes mellitus (GDM) is challenging and controversial due to the heterogeneity or lack of consensus regarding the screening and diagnostic criteria for GDM. METHODS: A meta-analysis of studies comparing Diabetes in Pregnancy Study Group India (DIPSI) and WHO 1999 for diagnosing GDM was carried out. RESULTS: A total of 6 comparative studies were included. Pooled analysis showed sensitivity and specificity as 0.79 (95% CI: 0.53 to 0.92) and 0.97 (95% CI: 0.94 to 0.98) respectively. CONCLUSION: Based on the results of the meta-analysis, DIPSI showed higher specificity when compared to WHO 1999, hence may be used to rule in disease in probable GDM cases. However, the results should be interpreted more cautiously and carefully since only a few studies were included.

A survey of hand hygiene practices among Indian medical undergraduates.

Background: Hand hygiene is the simplest and most effective method to prevent hospital acquired infections (HAI). Compliance with hand hygiene among health providers is, however, widely variable due to significant knowledge gaps and behavioral issues. The knowledge and practices of hand hygiene among medical undergraduate students, the future health workforce in the current COVID-19 pandemic will enable a reality check and ensure course correction at an early stage of their learning. Methods: An online questionnaire-based survey based on a standard, validated WHO 25-point (multiple-choice question and Yes/No answers) hand hygiene survey was undertaken among medical undergraduate students in an urban city from April to June 2020. Each correct response was awarded 1 point, and an incorrect response was awarded 0 points. The maximum achievable score was 25, and the minimum score was 0. Results: A total of 457 students with a mean age 20.24 ± 1.27 years completed the survey. A total of 415 (90.8%) students received hand hygiene training in the past three years. Overall 27.6% (n = 126) students had good knowledge, 65.4% (n = 299) had moderate and 7% (n = 32) had poor knowledge of hand hygiene practices. Conclusions: There were significant knowledge gaps regarding hand hygiene among medical undergraduate students in the midst of the COVID-19 pandemic. There is a need to strengthen existing teaching methods to positively impact behavioral change and potentially translate into better hand hygiene compliance among the future health workforce of the country.

Hydroxychloroquine/Chloroquine Prophylaxis among Health-care Workers: Was it Really Preventive? - Evidence from a Multicentric Cross-sectional Study.

Background: Despite the low level of clinical evidence in hydroxychloroquine (HCQ) favor, it was prescribed for pre- and post-exposure prophylaxis in India and worldwide. In absence of a large randomized control trial, the evidence needs to be generated through observation study, hence the study was conducted to find the evidence for prophylaxis of HCQ. Materials and Methods: A multi-centric cross-sectional study involving government hospitals was chosen for serosurvey conducted from August 21, 2020, to November 20, 2020. Questionnaire was adopted from WHO. Data about chloroquine (CQ) use among health-care workers (HCWs) were added and the duration of CQ intake was also noted. Results: A total of 2,224 HCWs were recruited. The mean duration of time of taking HCQ was 7.1 weeks (standard deviation ± 6.1 weeks, median = 4 weeks with IQR, 3-10 weeks). Training on personal protective equipment (PPE), knowledge of handwashing, direct care to the patient, availability of alcohol hand rub, close contact with the patient, duration of contact, and usage of PPE were associated with HCQ intake. The antibody formation in group taking HCQ was 16.9% compared to 19.8% not taking it (P = 0.08). The Chi-square for linear trend for weeks of HCQ intake and antibody formation. However, the same was not statistically significant (Chi-square = 3.61, P = 0.06). Conclusion: Our study did not find a statistically significant association in the large multicentric study. The absolute difference of 2.9% in the two groups may not be sufficient to warrant its widespread use for prophylaxis.

Findings of second multicentric follow-up serosurvey among Health Care Workers in government hospitals.

Background: The change in serological status of community may be used as input for guiding the public health policy. Hence, the present study was conducted to determine change in seroprevalence of COVID-19 among healthcare workers (HCWs). Methods: From the baseline multicentric study sample, a subsample was followed up, and a seroepidemiological study was conducted among them between 6 and 22 weeks after the second dose of the vaccination. Multistage population proportion to size sampling was performed for the selection of subsample of HCWs. The serosurvey was conducted using the enzyme-linked immunosorbent assay-based IgG antibody test (COVID KAVACH). Results: Follow-up serological testing was done in subsample of 1122 participants of original 3253 participants. The mean age of the participants was 34.6 (8.13) years. A total of 300 (26.7%) participants were females. The seroprevalence was 78.52, (95%CI:76-80.1). Among those who were seronegative at initial test, 708 (77.04%) were seroconverted. Those who were not seroconverted (241 (21.5%)) have longer duration from the second dose of the vaccination (93 (31.4) vs. 56 (38.4); p value < 0.001). The COVID-19 infection was significantly associated with seropositive status and being a medical staff was associated with remaining seronegative on follow-up. The higher age (≥50 years) was found to be significantly associated with seroreversion. Conclusion: Four in five HCWs had detectable antibodies. Seroepidemiological studies carry vital information to control the public health response in the course of the pandemic. The study can also further help as a platform to study the seroconversion and effect of vaccination among HCWs for newer variants of SARS-CoV-2.