Tag: nevin manimala

Int Tinnitus J. 2021 Mar 1;25(1):29-33. doi: 10.5935/0946-5448.2021007.

ABSTRACT

BACKGROUND: Covid-19 pandemic has caused a profound impact on the lives of people and has given rise to many mental health issues like anxiety and stress which eventually has given rise to bothersome tinnitus. In case of people having pre-existing tinnitus, the pandemic has raised the problem of tinnitus and the co-morbid issues related to tinnitus and severely affected the overall quality of life. Hence, we need to find a mean for home-based management of tinnitus and its associated problems.

OBJECTIVE: To understand the mechanism of mental health and to compare between the mindfulness-based tinnitus reduction and tinnitus retraining therapy on android-based application.

DESIGN: Comparative and Experimental design.

METHOD: The study was conducted on 60 participants and was divided into two groups. Detailed audiological assessment, tinnitus assessment and Tinnitus Handicap Inventory (THI) and Tinnitus Cognitions Questionnaire (TCQ) were administered. Group-I was provided with tinnitus retraining therapy and group-II was provided with mindfulness based tinnitus stress reduction. After the post therapy evaluation the data were compiled for statistical analysis in SPSS software 20.0. Results: It was found that there were significant difference between the pre and post therapy scores of TRT and MBTSR in both THI and TCQ (p<0.001).

CONCLUSION: Home-based management of tinnitus during the COVID-19 pandemic using both TRT and MBTSR were highly successful and had similar results MBTSR was found to be more useful as it had better outcome in reducing the tinnitus related annoyance and shown better improvement in QOL examination.

PMID:34410076 | DOI:10.5935/0946-5448.2021007

Vestn Oftalmol. 2021;137(4):31-37. doi: 10.17116/oftalma202113704131.

ABSTRACT

Uveal melanoma is a malignant neoplasm with high metastatic potential; its pathogenesis is currently being studied. Chemokines play a key role not only in the inflammatory response, but also in enhancing angiogenesis, tumor invasiveness, increasing proliferative potential and metastasis.

PURPOSE: To study the role of chemokines of classes CXC and CC in blood serum and tear fluid of patients with uveal melanoma.

MATERIAL AND METHODS: The study included 118 people aged 53.7±12.2 years, among them 80 patients with uveal melanoma and 38 healthy donors. Group 1 included 32 patients with small tumors, group 2 (medium-sized tumors) – 26 patients; group 3 (large tumors) was comprised of 22 patients. Chemokines of classes CC (CCL2/MCP-1, CCL3/MIP-1α, CCL4/MIP-1β, CCL5/RANTES, CCL11/Eotaxin) and CXC (CXCL1/GRO-α, CXCL8/IL-8, CXCL10/IP-10, CXCL12/SDF-1α) were determined by multiplex analysis of the blood serum and tear fluid. Statistical processing: Student’s t-test, Fisher criteria, and Pierson’s chi-squared test (χ2), differences were considered significant at p<0.05.

RESULTS: Significantly increased level of chemokines with pro-inflammatory (CCL5/RANTES), proliferative (CXCL10/IP-10) and pro-angiogenic (CXCL12/SDF-1α) effects was found in the blood serum of patients with small-sized uveal melanoma in comparison with healthy donors. Concentration of all studied pro-inflammatory, proliferative, and pro-angiogenic chemokines in the lacrimal fluid was found to be significantly elevated in both the affected and the paired “healthy” eyes in all 3 groups of patients, with the maximum content seen in the large tumor group.

CONCLUSION: The obtained data indicates that early local and systemic immune imbalance can be observed in uveal melanoma, and detection of chemokines can serve as a good reason for developing targeted therapy for small uveal melanoma.

PMID:34410054 | DOI:10.17116/oftalma202113704131

Vestn Oftalmol. 2021;137(4):65-71. doi: 10.17116/oftalma202113704165.

ABSTRACT

PURPOSE: To study the characteristics of venous circulation in the eyes with retinopathy of prematurity (ROP) observed in examination of blood flow in the central retinal vein and superior orbital vein in patients with different forms, stages and state of the disease.

MATERIAL AND METHODS: Color duplex scanning of the central retinal vein and superior orbital vein was performed using color Doppler imaging and pulsed Doppler sonography in 55 premature babies (55 eyes) with active ROP and 8 premature babies (8 eyes) with no signs of ROP. All babies included in the study were born at 25-32 weeks of gestation, their birth weight was 680-1760 g.

RESULTS: A characteristic feature of hemodynamic parameters in the central retinal vein at stages 1-3 of active ROP was a decrease in both the maximum and minimum blood flow velocities (V_max and V_min), indicating a serious disorder of ocular hemodynamics in this category of patients. An increase in V_max in the central retinal vein was recorded for patients with aggressive posterior ROP, which occurs in response to venous stasis that is common in this form of the disease. The performed statistical assessment of the prognostic significance of hemodynamic parameters of the central retinal vein in relation to the type of active ROP revealed a high information content of V_min, which is promising for early detection of unfavorable course of the disease helping to ensure timely treatment. The blood flow in the superior orbital vein showed distinctive absence of any correlations with the course of the disease, disallowing any immediate conclusions on the informativeness and predictive value of its parameters.

CONCLUSION: The revealed features of venous blood flow in patients with active ROP help expand the understanding of vascular changes in this pathology, and can also be applied in clinical practice to improve the accuracy of predicting the course of the disease.

PMID:34410059 | DOI:10.17116/oftalma202113704165

Quintessence Int. 2021 Aug 19;0(0). doi: 10.3290/j.qi.b1901329. Online ahead of print.

ABSTRACT

OBJECTIVE: To evaluate, in vivo, trueness and precision of two intraoral scanners, CEREC Omnicam (OMNI) and CEREC Primescan (PRIM), compared to a conventional impression serving as a master model.

METHOD AND MATERIALS: Impressions were performed for seven participants. For each participant, conventional polyvinylsiloxane impression and digital impressions using two intraoral scanners, OMNI (software 4.6; CEREC ORTHO Protocol) and PRIM (10 digital impressions per participant, per scanner), were made. Conventional impression was digitized with a laboratory scanner (INEOS X5), and used as reference model. .STL files were superimposed with software (Geomagic Control X) using the tools Initial Alignment and Best Fit Alignment, and trueness and precision were evaluated. Statistical evaluation was performed with Shapiro-Wilk and Mann-Whitney tests (P < .05).

RESULTS: Total mean trueness for the OMNI system was 56.45 ± 7.80 µm, and 47.29 ± 5.47 µm for the PRIM system. Regarding precision, values from the OMNI system were 42.47 ± 6.91 µm and from the PRIM system 21.86 ± 4.40 µm. PRIM presented better results for both trueness (P = .000) and precision (P = .000) when compared to OMNI.

CONCLUSIONS: PRIM provided a better combination of trueness and precision than its predecessor OMNI. However, both PRIM and OMNI performed acceptably when performing indirect restorations, according to the current acceptable thresholds, considering both trueness and precision.

CLINICAL IMPLICATIONS: Full-arch impressions with Primescan presented more precision and trueness than Omnicam; however, compared to previous reported values of conventional impressions, they still presented lower accuracy.

PMID:34410071 | DOI:10.3290/j.qi.b1901329

Dis Esophagus. 2021 Aug 19:doab058. doi: 10.1093/dote/doab058. Online ahead of print.

ABSTRACT

We examined demographic and lifestyle risk factors for incidence of gastroesophageal reflux disease (GERD) and Barrett’s esophagus (BE) in an Australian cohort of 20,975 participants aged 40-63 at recruitment (1990-1994). Information on GERD and BE was collected between 2007 and 2010. GERD symptoms were defined as self-reported heartburn or acid regurgitation. BE was defined as endoscopically confirmed columnar-lined esophagus. Risk factors for developing GERD symptoms, BE diagnosis, age at symptom onset, and age at BE diagnosis were quantified using regression. During a mean follow-up of 15.8 years, risk of GERD symptoms was 7.5% (n = 1,318) for daily, 7.5% (n = 1,333) for 2-6 days/week, and 4.3% (n = 751) for 1 day/week. There were 210 (1.0%) endoscopically diagnosed BE cases, of whom 141 had histologically confirmed esophageal intestinal metaplasia. Female sex, younger age, lower socioeconomic position (SEP) and educational attainment, and former smoking were associated with higher GERD risk. Male sex and smoking were associated with earlier GERD symptom onset. Men, older participants, those with higher SEP, and former smokers were at higher BE risk. There was some evidence higher SEP was associated with earlier BE diagnosis. GERD and BE had different demographic risk factors but shared similar lifestyle factors. Earlier GERD symptom onset for men and smokers might have contributed to higher BE risk. The SEP patterns observed for GERD and BE suggest potential inequity in access to care. These findings would be important in the development of clinical risk prediction models for early detection of BE.

PMID:34409990 | DOI:10.1093/dote/doab058

Zool Res. 2021 Sep 18;42(5):626-632. doi: 10.24272/j.issn.2095-8137.2021.080.

ABSTRACT

Viruses can be transmitted from animals to humans (and vice versa) and across animal species. As such, host-virus interactions and transmission have attracted considerable attention. Non-human primates (NHPs), our closest evolutionary relatives, are susceptible to human viruses and certain pathogens are known to circulate between humans and NHPs. Here, we generated global statistics on VI-NHPs based on a literature search and public data mining. In total, 140 NHP species from 12 families are reported to be infected by 186 DNA and RNA virus species, 68.8% of which are also found in humans, indicating high potential for crossing species boundaries. The top 10 NHP species with high centrality in the NHP-virus network include two great apes (Pan troglodytes, Pongo pygmaeus) and eight Old World monkeys (Macaca mulatta, M. fascicularis, M. leonina, Papio cynocephalus, Cercopithecus ascanius, C. erythrotis, Chlorocebus aethiops, and Allochrocebus lhoesti). Given the wide distribution of Old World monkeys and their frequent contact with humans, there is a high risk of virus circulation between humans and such species. Thus, we suggest recurring epidemiological surveillance of NHPs, specifically Old World monkeys that are in frequent contact with humans, and other effective measures to prevent potential circulation and transmission of viruses. Avoidance of false positives and sampling bias should also be a focus in future work.

PMID:34410047 | DOI:10.24272/j.issn.2095-8137.2021.080

Am J Epidemiol. 2021 Aug 19:kwab220. doi: 10.1093/aje/kwab220. Online ahead of print.

ABSTRACT

Effect measure modification is often evaluated using parametric models. These models, though efficient when correctly specified, make strong parametric assumptions. While nonparametric models avoid important functional form assumptions, they often requirelarger samples to achieve a given accuracy. We conducted a simulation study to evaluate performance tradeoffs between correctly specified parametric and nonparametric models to detect effect modification of a binary exposure by both binary and continuousmodifiers. We evaluated generalized linear models (GLM) and doubly robust (DR) estimators, with and without sample splitting. Continuous modifiers were modeled with cubic splines, fractional polynomials, and nonparametric DR-learner. For binary modifiers, GLM showed the greatest power to detect effect modification, ranging from 0.42 to 1.00 in the worst and best scenario, respectively. Augmented Inverse Probability Weighting had the lowest power, with an increase of 23% when using sample splitting. For continuous modifiers, the DR-learner was comparable to flexible parametric models in capturing quadratic and non-linear monotonic functions. However, for non-linear, non-monotonic functions, the DR-learner had lower integrated bias than splines and fractional polynomials, with values of 141.3, 251.7 and 209.0, respectively. Our findings suggest comparable performance between nonparametric and correctly specified parametric models in evaluating effect modification.

PMID:34409985 | DOI:10.1093/aje/kwab220

Aging Ment Health. 2021 Aug 19:1-9. doi: 10.1080/13607863.2021.1966746. Online ahead of print.

ABSTRACT

OBJECTIVES: In Alzheimer’s Disease (AD) research, choosing appropriate method for measuring change in cognitive function over time can be challenging. The aim for this study was to examine the sensitivity of four neuropsychological tests used to measure cognition during the transition from mild cognitive impairment (MCI) to AD, and the impacts of associated covariates.

METHODS: We enrolled 223 patients with MCI who progressed to AD and had completed multiple follow-up assessments in the Alzheimer’s Disease Neuroimaging Initiative (ADNI) database. We constructed nonlinear mixed model for multivariate longitudinal data assuming that multiple neuropsychological tests would exhibit nonlinear transformation of a common factor in the latent cognitive process underlying the progression from MCI to AD.

RESULTS: The Clinical Dementia Rating-Sum of the Boxes (CDR-SB) and Alzheimer’s Disease Assessment Scale (11 items; ADAS-11) were more sensitive to cognitive changes in individuals with higher cognitive function, the Functional Activities Questionnaire (FAQ) was more sensitive to cognitive changes in individuals with middle cognitive function, and the Mini-Mental State Examination (MMSE) was more sensitive to cognitive changes in individuals with lower cognitive function. Gender (p = 0.0139) and educational level (p = 0.0094) had varying effects on different tests, such that men performed better on the FAQ and CDR-SB, and individuals with higher educational level tended to perform better on the FAQ and MMSE.

CONCLUSIONS: When choosing appropriate neuropsychological tests in cognitive measurements, the cognitive functional level of the patient as well as the impacts of covariates should be considered.

PMID:34409904 | DOI:10.1080/13607863.2021.1966746

Clin Nurs Res. 2021 Aug 19:10547738211036600. doi: 10.1177/10547738211036600. Online ahead of print.

ABSTRACT

This study aims to compare the effectiveness of video and paper materials used for teach-back education on the first insulin injection for patients with diabetes. The study enrolled 110 patients hospitalized for diabetes who had received education on their first insulin injection in the endocrinology department. The patients were divided into an intervention group (n = 55) and a control group (n = 55) using convenience sampling. Video materials were employed for the teach-back education of the intervention group, while paper materials were employed for the teach-back education of the control group. We compared cases who answered correctly to the common parts (selection and management of injection devices, selection and rotation of injection sites, proper use of injection angles and pinching, insulin storage, injection-related complications and their prevention, selection of the correct needle length, and safe disposal of needles after use) for the first time, the number of educational sessions and total education duration between the two groups and employed the “My View on Insulin” questionnaire to survey the two groups before and 28 days after the intervention. The intervention group had a shorter total education duration than the control group, a difference that was statistically significant (p < .001). The intervention group had more advantages over the control group in terms of rotation education at the injection site (p < .05). There was no statistically significant difference in the questionnaire scores between the two groups after the intervention (p > .05); however, both groups scored significantly higher than before the intervention, a difference that was statistically significant (p < .001). The teach-back method combined with video materials applied for educating patients on their first insulin injection could reduce the education duration by healthcare providers and improve the patients’ psychological insulin resistance. The key to successfully teaching patients to self-administer insulin, and allowing them to master the steps involved, is to focus on “why” rather than “what” to do.

PMID:34409889 | DOI:10.1177/10547738211036600

Integr Cancer Ther. 2021 Jan-Dec;20:15347354211037917. doi: 10.1177/15347354211037917.

ABSTRACT

Afatinib is a target anticancer drug of the second-generation EGFR TKI type, showing an advantage in treatment effect compared to conventional chemotherapy. However, patients on EGFR-TKI drugs also usually progress after 9 to 13 months according to secondary resistance. HAD-B1 is composed of drugs that are effective against lung cancer. This study is an exploratory study to evaluate the efficacy and safety between dosage groups by conducting a clinical trial in subjects requiring afatinib drug treatment in non-small cell lung cancer with EGFR mutation positive to determine the optimal dosage for HAD-B1 administration. At the final visit compared to before administration, each change in the disease control rate was measured according to the HAD-B1 doses of the test group 1 (972 mg), the test group 2 (1944 mg), and the control group. The efficacy and safety of HAD-B1 were compared and evaluated through sub-evaluation variables. As a result of the study, there was no statistically significant difference in the disease control rate at 12 weeks after dosing, but complete and partial remission were evaluated as 1 patient each in the test group 1, and none in the other groups. There was no statistically significant difference between groups in the sub-evaluation variable. In addition, there was no problem of safety from taking the test drug. However, the initially planned number of subjects was 66, but the number of enrolled subjects was only 14, which may limit the results of this study.

PMID:34409891 | DOI:10.1177/15347354211037917