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Nevin Manimala Statistics

Threshold values of brachial cuff-measured arterial stiffness indices determined by comparisons with the brachial-ankle pulse wave velocity: a cross-sectional study in the Chinese population

Front Cardiovasc Med. 2023 Jul 13;10:1131962. doi: 10.3389/fcvm.2023.1131962. eCollection 2023.

ABSTRACT

BACKGROUND: Arterial Velocity-pulse Index (AVI) and Arterial Pressure-volume Index (API), measured by a brachial cuff, have been demonstrated to be indicative of arterial stiffness and correlated with the risk of cardiovascular events. However, the threshold values of AVI and API for screening increased arterial stiffness in the general population are yet to be established.

METHODS: The study involved 860 subjects who underwent general physical examinations (M/F = 422/438, age 53.4 ± 12.7 years) and were considered to represent the general population in China. In addition to the measurements of AVI, API and brachial-ankle pulse wave velocity (baPWV), demographic information, arterial blood pressures, and data from blood and urine tests were collected. The threshold values of AVI and API were determined by receiver operating characteristic (ROC) analyses and covariate-adjusted ROC (AROC) analyses against baPWV, whose threshold for diagnosing high arterial stiffness was set at 18 m/s. Additional statistical analyses were performed to examine the correlations among AVI, API and baPWV and their correlations with other bio-indices.

RESULTS: The area under the curve (AUC) values in ROC analysis for the diagnosis with AVI/API were 0.745/0.819, 0.788/0.837, and 0.772/0.825 (95% CI) in males, females, and all subjects, respectively. Setting the threshold values of AVI and API to 21 and 27 resulted in optimal diagnosis performance in the total cohort, whereas the threshold values should be increased to 24 and 29, respectively, in order to improve the accuracy of diagnosis in the female group. The AROC analyses revealed that the threshold values of AVI and API increased markedly with age and pulse pressure (PP), respectively.

CONCLUSIONS: With appropriate threshold values, AVI and API can be used to perform preliminary screening for individuals with increased arterial stiffness in the general population. On the other hand, the results of the AROC analyses imply that using threshold values adjusted for confounding factors may facilitate the refinement of diagnosis. Given the fact that the study is a cross-sectional one carried out in a single center, future multi-center or follow-up studies are required to further confirm the findings or examine the value of the threshold values for predicting cardiovascular events.

PMID:37522090 | PMC:PMC10381930 | DOI:10.3389/fcvm.2023.1131962

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Nevin Manimala Statistics

A clinical and statistical study on enamel hypomineralization of the first permanent molar in the period of mixed dentition

Rom J Morphol Embryol. 2023 Apr-Jun;64(2):241-249. doi: 10.47162/RJME.64.2.15.

ABSTRACT

BACKGROUND: The first permanent molar (FPM) is the first tooth in the permanent dentition that emerges in the oral cavity, at around the age of six and behind the deciduous teeth, thus converting the primary dentition into a mixed dentition. Its early formation represents a risk factor for the onset of hard dental tissues disorders, the most common being the molar incisor hypomineralization (MIH).

AIM: The aim of the study was to assess the hypomineralization type of developmental defects of enamel at FPM level during the mixed dentition stage, in a group of Romanian children.

PATIENTS, MATERIALS AND METHODS: The research was conducted on 87 patients, 44 females and 43 males, divided into the following age groups: 5-6 years, 6-7 years, 7-8 years, 8-9 years, 9-10 years, 10-11 years, 11-12 years and older than 12 years. All children were examined in the dental office by a pediatric dentist.

RESULTS: Of the subjects, 40.2% presented hypomineralization lesions on the FPM. Among the affected children, 62.9% were girls and 37.1% were boys. Mild forms were the most prevalent, being found in 71.4% of the affected subjects. Moderate forms were present in 22.9% and severe forms in 5.7% of the affected children. MIH prevalence significantly decreased with increasing age. Only two children belonging to the group 8-9 years and 10-11 years, respectively, showed severe MIH lesions. Statistically significant differences were determined in what regards the distribution of MIH children according to the severity of the lesions in relation to age (p=0.007).

CONCLUSIONS: Children 6- to 7-year-old have been the most affected by FPM hypomineralization, which indicates the need for early management of the disease, through a thorough diagnosis, and preventive and interceptive therapeutic approaches.

PMID:37518882 | DOI:10.47162/RJME.64.2.15

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Involvement of TLR9 in priming the immune response in oral papillomatosis induced by low-risk HPV

Rom J Morphol Embryol. 2023 Apr-Jun;64(2):181-188. doi: 10.47162/RJME.64.2.08.

ABSTRACT

Oral papillomatosis represents a benign lesion of the oral mucosa often induced by human papillomavirus (HPV) or having a non-infection local or general etiology. HPVs are very well adapted and efficient viruses able to produce changes in the immune system, endowed with the ability to replicate in the keratinocytes and to remain silent. The natural evolution of HPV infection is different, depending on the efficiency of the innate immune system. The purpose of this study was to explore Toll-like receptor 9 (TLR9) immunohistochemical expression in low-risk (LR)-HPV oral infection and its ability to facilitate an efficient immune response by activating the macrophages, which serve as main antigen-presenting cells. Samples of two groups of oral mucosae – LR-HPV-positive and HPV-negative – were processed for immunohistochemistry technique and incubated with antibody against TLR9 and cluster of differentiation 68 (CD68). Image analysis and morphometry were conducted to assess the intensity of TLR9 immune signal in the epithelium and the number of macrophages labeled by CD68. We found a statistically significant difference between macrophage count for the subjects in HPV-positive and HPV-negative groups; thought no significant differences of TLR9 immune signal was noted, which demonstrates a diminished immune response in HPV-positive group, probably influencing the time of lesion’s clearance.

PMID:37518875 | DOI:10.47162/RJME.64.2.08

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Nevin Manimala Statistics

Immunoexpression of Claudins -3, -4 and -7 in prostate adenocarcinomas

Rom J Morphol Embryol. 2023 Apr-Jun;64(2):165-171. doi: 10.47162/RJME.64.2.06.

ABSTRACT

Claudins are a family of essential tight junction proteins, abnormally expressed in human carcinomas. The studies that indicated the involvement of claudins in tumor biology and progression suggest the possibility of their utility as markers for diagnosis or prognosis, but also as possible targets for therapy. We investigated 50 prostate adenocarcinomas (PAs) for which we followed the expression of Claudins -3, -4 and -7 in relation to International Society of Urological Pathology (ISUP) grades. We observed the positivity for Claudin-3, Claudin-4, and Claudin-7 in 76%, 74% and 46% of cases. Analysis of the immunoexpression pattern revealed the cytoplasmic and nuclear translocation for Claudins -3 and -4, and only cytoplasmic for Claudin-7. For all claudins investigated, we noted a final staining score with significantly higher values or at the limit of statistical significance for PA belonging to ISUP groups 1-4. The internalization of Claudins -3, -4 and -7 expression, regardless of the degree of PA, indicates their involvement in prostate carcinogenesis. In addition, the similar immunoexpression patterns of the three investigated claudins and their positive linear correlation suggest a coordinated regulation and indicate the possibility of a targeted treatment strategy.

PMID:37518873 | DOI:10.47162/RJME.64.2.06

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Nevin Manimala Statistics

The added value of CA125, HE4, and CA72-4 as markers for ovarian endometriosis diagnosis

Rom J Morphol Embryol. 2023 Apr-Jun;64(2):159-164. doi: 10.47162/RJME.64.2.05.

ABSTRACT

OBJECTIVE: This study aimed to evaluate the prognostic value as diagnosis makers of cancer antigen (CA)125, human epididymis 4 (HE4), and CA72-4 serum levels in ovarian endometriosis (OvEndo).

PATIENTS, MATERIALS AND METHODS: The serum levels of CA125, HE4, and CA72-4 were measured using enzyme-linked immunosorbent assay (ELISA) technique for a group of 29 cases of OvEndo and a control (CTR) group of 26 cases.

RESULTS: Results were compared between groups and statistical correlation was analyzed between the three biomarkers. (i) For CA125, we found a statistically significant difference in-between the mean serum levels of the two groups: 9.02 U∕mL in the OvEndo group versus 7.1 U∕mL in the CTR group (p=0.0158). (ii) A similar situation was found for CA72-4 levels in OvEndo group, where the mean serum level was 6.1 U∕mL compared to 3.5 U∕mL in the CTR group, showing a significant difference (p=0.0185). (iii) The mean serum level of HE4 in the OvEndo group was 7.6 ng∕mL versus 7.8 ng∕mL in the CTR group, and we found it highly significant (p=0.0001). HE4 levels were highly correlated with CA72-4 levels (p<0.0001), while CA125 levels were not correlated with HE4 and CA72-4.

CONCLUSIONS: Measurements of CA125 can be used in the diagnosis of OvEndo mainly in association with HE4 serum levels, which are lower in endometriosis patients. CA72-4 levels are highly correlated with HE4 levels in patients with OvEndo, while no correlation with the other two markers was found. This correlation needs further investigation to establish if it may be used as a possible diagnostic tool in clinical practice.

PMID:37518872 | DOI:10.47162/RJME.64.2.05

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Nevin Manimala Statistics

The relationship between pes planus and venous insufficiency

Phlebology. 2023 Jul 30:2683555231192755. doi: 10.1177/02683555231192755. Online ahead of print.

ABSTRACT

INTRODUCTION: The presence of pes planus may be responsible for the disorder of venous return during ambulation. Our aim in this study is to reveal that the risk of venous insufficiency may be increased in patients with pes planus.

METHODS: A total of 59 patients with 29 bilateral pes planus and 30 normal arches included in the study. Djian Annonier angle measurement, bilateral lower extremity venous Doppler ultrasonography (USG), foot function index (AFI), Comprehensive Classification System for Chronic Venous Disorders (CEAP) clinical scoring and Short Form-36 (SF-36) was evaluated.

RESULTS: There was a statistically significant difference in AFI total, AFI pain, AFI disability and AFI activity limitation scores, bilateral lower extremity doppler USG and CEAP clinical scores in the patient group compared to the control group.

CONCLUSION: These findings suggest that there may be a relationship between pes planus and venous insufficiency. However, large-scale studies with more patient involvement are needed.

PMID:37518862 | DOI:10.1177/02683555231192755

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Nevin Manimala Statistics

The Effects of the Jump-In Whole-School Intervention on the Weight Development of Children in Amsterdam, the Netherlands

J Sch Health. 2023 Jul 30. doi: 10.1111/josh.13363. Online ahead of print.

ABSTRACT

BACKGROUND: This study assessed the effects of the “Jump-in” whole-school intervention in Amsterdam, the Netherlands, on children’s weight development by comparing children exposed to the intervention and controls from 3 other large Dutch cities. Jump-in is a comprehensive intervention that aims to stimulate healthy nutrition and physical activity in children at primary schools in Amsterdam. In addition, the relationship between the intervention’s implementation degree and its effectiveness was studied.

METHODS: Demographic and anthropometric data, collected by youth health care professionals via routine health checks at T0 (2014) and T1 (2019), were used to analyze possible intervention effects by comparing the weight development of children exposed to the Jump-in intervention versus unexposed controls. Implementation logs from health promotion professionals were used to determine intervention effects per implementation degree. Multilevel regression analyses were used for all analyses.

RESULTS: In total, 4299 children were included mean age ± 5.5 years (T0), 10.6 years (T1), and ≈50% boys/girls at both times. Receiving the fully implemented intervention resulted in a decline in standardized body-mass index (zBMI) compared to the controls (-0.23, confidence interval [CI] -0.33, -0.13). It also led to higher odds to move into a healthier weight category over time (odds ratio [OR] 1.36, CI 1.06, 1.74), yet no statistically significant shift towards a healthy weight was found.

CONCLUSIONS: Relative to the controls, children exposed to the intervention showed positive zBMI developments, with stronger effects when the implementation degree was higher. Despite positive results, creating more impact might require the further integration of school-based programs into whole-systems approaches that include other energy-balance behaviors.

PMID:37518834 | DOI:10.1111/josh.13363

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Nevin Manimala Statistics

Does physical activity confound race differences in osteoarthritis-related functional limitation?

Arthritis Care Res (Hoboken). 2023 Jul 30. doi: 10.1002/acr.25209. Online ahead of print.

ABSTRACT

OBJECTIVE: To determine to what extent physical activity confounds the relation between race and the incidence of osteoarthritis (OA)-related functional limitation.

METHODS: Osteoarthritis Initiative study participants, with or at increased risk of knee OA, who wore an accelerometer were included. Race was self-reported. Average time spent in moderate-to-vigorous physical activity (minutes/day) based on ActiGraph uniaxial accelerometer data was assessed. Functional limitation was based on: 1) inability to achieve a community walking speed (1.2 m/s) standard; 2) slow walking speed (<1.0 m/s); and 3) low physical functioning based on Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) physical function score ≥28/68.

RESULTS: African Americans (AAs, n=226), compared to Whites (n=1348), had a higher likelihood of developing functional limitation based on various measures. When adjusted for time in moderate-to-vigorous physical activity, the association between AA race and inability to walk a community walking speed slightly decreased (from RR 2.15 [95% CI: 1.64-2.81] to 1.99 [95% CI: 1.51-2.61]). Association between AA race and other measures of functional limitation mildly decreased (slow walking speed: from RR 2.06 [95% CI: 1.40-3.01] to 1.82 [95% CI: 1.25-2.63]; low physical functioning: from RR 3.44 [95% CI: 1.96-6.03] to 3.10 [95% CI: 1.79-5.39]). When further adjusted for demographic and other clinical variables, only the association between race and low physical functioning (WOMAC) significantly decreased and no longer met statistical significance.

CONCLUSION: Greater physical activity is unlikely to completely make up for race differences in OA-related functional limitation, and other barriers to health equity need to be addressed. This article is protected by copyright. All rights reserved.

PMID:37518677 | DOI:10.1002/acr.25209

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Nevin Manimala Statistics

3D occlusal changes of upper first molars after rapid maxillary expansion on permanent versus deciduous teeth: a retrospective multicenter CBCT study

Prog Orthod. 2023 Jul 31;24(1):24. doi: 10.1186/s40510-023-00476-1.

ABSTRACT

BACKGROUND: The purpose of this study was to compare the three-dimensional dental changes for the maxillary first molars and the overall skeletal effects achieved after expansion between the rapid maxillary expansion (RME) appliance attached to two different anchor units, the maxillary deciduous molars and the maxillary permanent first molars.

METHODS: Patients were retrospectively selected according to the anchorage unit used for RME: deciduous upper second molars (RME-E group; 10 M, 10 F; mean age 8.4 ± 1.1 years) and first upper permanent molars (RME-6 group; 10 M, 10 F; mean age 12.6 ± 1.8 years). CBCT scans were obtained before treatment start (T1) and after retention and removal of the expander (T2). Images were analyzed using a new three-dimensional intra-hemi-maxillary reference system. 3D landmarks were marked to calculate all changes on maxillary first permanent molars; mesio-distal and buccal-lingual inclination and rotation, as well as intermolar and interforaminal distances were calculated. The Wilcoxon test was used to compare within-group changes, whereas the Mann-Whitney test was used to compare between-group differences, with the significance level set at 0.05.

RESULTS: In the RME-E group, significant distorotation and lingual inclination of the first permanent molars at T2 were observed (p < 0.01); in the RME-6 group, only the buccolingual inclination of the crossbite side after RME was resulted statistically significant (p < 0.01). In both groups, intermolar and interforaminal values increased significantly (p < 0.01). Intergroup analysis showed a significantly higher distorotation and reduced buccal inclination of maxillary first permanent molars in the RME-E group after RME (p < 0.01).

CONCLUSIONS: RME is effective in treating maxillary transverse hypoplasia; RME anchored too deciduous teeth spontaneously reduces buccal inclination and increases distorotation of maxillary first permanent molars, whereas anchorage to permanent molars is associated with increased buccal inclination, albeit with little clinical significance.

PMID:37518579 | DOI:10.1186/s40510-023-00476-1

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Nevin Manimala Statistics

Relative Genetic Homogeneity within a Phenotypically Diverse group: The Case of Lake Tana Labeobarbus (Cyprinidae) Species Flock, Ethiopia

Zootaxa. 2023 Jun 9;5301(2):182-198. doi: 10.11646/zootaxa.5301.2.2.

ABSTRACT

The Lake Tana Labeobarbus species flock represents one of the world’s most famous examples of lacustrine species radiations. Previous studies of this group have resulted in the description of at least 15 species based on their differences in functional morphology and definition of two clades (lacustrine and riverine spawning clades) based on life history traits. A total of 166 fish representing 14 Labeobarbus species were genotyped using 10 lineage-specific hexaploid microsatellite loci. Six of these loci were developed for this study based on DNA sequence contigs derived from a microsatellite-enriched genomic library of Labeobarbus intermedius from Lake Tana; the remaining four loci were obtained from a previous study. The genotypes of the 10 loci were analyzed to examine genetic diversity and population structure within Lake Tana Labeobarbus. Overall mean allelic richness (NA) was 17.6 alleles per locus and observed (Ho) and expected (He) heterozygosities were 0.84 ± 0.14 and 0.73 ± 0.09, respectively, across all Lake Tana Labeobarbus samples examined. Our analyses reveal that there is little genetic differentiation among species (FST = 0.020-0.099; only 10 of 91 species comparisons were significant), but moderate differentiation (FST = 0.11, p < 0.05) between lacustrine and riverine spawning populations. Relative to previous phylogenetic hypotheses, our phenetic analysis employing the R-based Analysis of Phylogenetics and Evolution (APE) program seems to perform marginally better in revealing lineages within Lake Tana Labeobarbus. Herein, our results are compared to a previous microsatellite-based study of the same populations.

PMID:37518566 | DOI:10.11646/zootaxa.5301.2.2