scholarly journals THE MORPHOLOGY OF THE PINEAL GLAND OF THE INDIGENOUS POPULATION OF THE YAKUTIA IN THE AGE ASPECT

2019 ◽  
Vol 27 (3) ◽  
pp. 51-55
Author(s):  
A. Y. Sleptsov ◽  
D. K. Garmaeva ◽  
D. S. Belolyubskaya

The pineal gland is a functionally light-dependent organ located in different conditions depending on living in different latitudes. Insufficient data on the morphological and functional state of the human pineal gland under various living conditions constitute a significant gap in the study of the pineal gland. A morphological study of the epiphysis of the indigenous population of different age groups was carried out, obtained during of autopsies on in the pathology department of the National Center of Medicine of Yakutsk (Republic of Sakha). The methods of morphometric analysis with the calculation of indicators of the area of pinealocyte karyons and the quantitative assessment of pineal gland parenchyma cells were used. The data obtained show age-related changes in morphological and functional activity, including changes in the size of light and dark cell karyons in the oldest age group. The largest deviations were observed among dark cells, probably indicating their transition and replenishment of active secreting pinealocytes against the background of a general decrease in the number of cells associated with fibrosis and organ calcification. In the group of 6069 years old, there is an increase in the number of gliocytes, significant compared with the younger age group. In the group of the oldest age, a sharp decrease in their number is noted. Age-related morphological and functional changes in the pineal gland in the indigenous population of Yakutia are most evident at the age of 60-69 and include signs of a decrease in the functional activity of pinealocytes, progressive calcification of the pineal gland, accumulation of neural pigment and proliferation of connective tissue, with the formation of a stromal type of structure.

Medicina ◽  
2021 ◽  
Vol 57 (4) ◽  
pp. 383
Author(s):  
Bogdan-Alexandru Gheban ◽  
Horațiu Alexandru Colosi ◽  
Ioana-Andreea Gheban-Rosca ◽  
Bogdan Pop ◽  
Ana-Maria Teodora Domșa ◽  
...  

Background and objectives: The pineal gland is a photoneuroendocrine organ in the midline of the brain, responsible primarily for melatonin synthesis. It is composed mainly of pinealocytes and glial tissue. This study examined human postmortem pineal glands to microscopically assess age-related changes using digital techniques, and offers a perspective on evolutionary tendencies compared to the past. Materials and Methods: A retrospective autopsy study has been performed on 72 pediatric and adult autopsy cases. The glands have been processed for histological analysis and immunohistochemical staining with glial fibrillary acidic protein (GFAP). Slides were assessed under polarized light and digitally scanned. Morphometric data were obtained using CaseViewer and ImageJ. Results: Thirty-three females and 39 males were included in the study, grouped under three age groups: 0–25, 46–65, and 66–96 years of age. The peak gland volume was found within the 46–65 age group, the overall mean volume was 519 mm3, the main architectural types were lobular and insular, and the mean percentage of pineal calcification was 15% of the gland, peaking within the 66–96 age group, with a predominantly globular shape. Glial cysts were found in 20.8% of cases. The intensity of GFAP stain was maximal in the pediatric age group, but the extent of glial tissue was much larger in elderly patients. Discussion: The degenerative process of the pineal gland can be quantified by measuring normal parenchyma, calcifications, glial tissue, and glial cysts. Morphometric differences have been observed and compared to a similar studies performed in the published literature. The current study, unfortunately, lacks a 26–45 age group. Digital techniques seemed to offer a more exact analysis, but returned similar results to studies performed over 40 years ago, therefore offering important information on evolutionary tendencies. Conclusions: Increase in glial tissue, calcifications, and glial cysts have a defining role as age-related changes in the pineal gland.


Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 1929-1929
Author(s):  
Olufunmilayo A Bamigbola ◽  
Lorna E Warwick

Abstract Background Lymphomas can occur in all age groups but most commonly occur in older adults. Despite the shift towards patient- centered care, very little has been done to explore the information needs of patients with lymphoma by age. It is important for information to accessible to patients of all ages, as informed patients are consistently associated with better outcomes and healthcare experiences. In this study, Lymphoma Coalition (LC) describes the age-related differences in the information needs of patients with lymphoma using the 2020 LC Global Patient Survey (GPS). The objectives of this study were to identify: 1) how patients felt about the amount of information they received at diagnosis 2) the content of the information received at diagnosis and the level of understanding, and 3) their informational needs. Methods Globally, 11,878 respondents including 9,179 patients and 2,699 caregivers took part in the 2020 LC GPS. There were 9,078 patients included in this analysis who self-identified their age. These patients were grouped into five age groups for analysis: 18-29 (n=638), 30-39 (n=1,196), 40-59 (n=3,261), 60-69 (n=2,216), and 70+ (n=1,767). Demographics of the five age groups were examined, and descriptive analyses for all questions relating to information needs were performed in IBM SPSS v27. Results The five age groups differed significantly (p< 0.001) in all the demographic categories examined. These categories included lymphoma subtype, sex, area of residence, education level, employment status, and household status. Patients were asked how they felt about the amount of information given to them at diagnosis. The oldest age group (70+) reported the highest prevalence (70%) of having received the right amount of information (Table 1). The younger age groups (18-29; 30-39; and 40-59) reported the highest prevalence of not receiving enough information (38%, 42%, and 41% respectively). Although not many patients reported being given too much information, of those who did, the younger age groups (18-29; 30-39; and 40-59) were the most prevalent (10%; 7%; and 5% respectively) (Table 1). Patients were asked about the type of information given to them at diagnosis, and how well they understood it. Compared to the younger age groups, the older age groups (60-69 and 70+) more frequently reported that they received and understood information given to them on different medical treatment options, the process and stages of their care, and how to manage side effects of treatment (Table 1). Patients were also asked what they needed more information about (Table 1). The top three areas that all patients needed more information about (regardless of age group) were treatment options, side effects from treatment, and their diagnosis and what it means. There was significant difference in the prevalence of how these information needs were reported between the age groups (Table 1). There was also significant difference in the prevalence of reporting a need for more information on support for self care, psychological support/counselling, and fertility across the age categories (Table 1). The lowest prevalence for needing more information in any of these areas was observed in the older age groups (60-69 and 70+), while the highest prevalence was observed in the youngest age groups (18-29 and 30-39) (Table 1). Although few patients reported not needing more information in any of these areas, its reporting was most prevalent in the older age groups (60-69 and 70+) (12% and 19%, respectively) (Table 1). Summary/Conclusions This analysis revealed that patients with lymphoma/CLL experience medical information differently across age groups. Compared to the mid and oldest patient groups, younger patients with lymphoma or CLL reported experiencing medical information differently than older patients do and reported less understanding of the medical information given to them. The younger patients also reported higher informational needs about their disease and treatment that may also be related to their age (e.g. information on fertility and family support). Clinicians should note these differences in age-group experiences and information needs, with the understanding that younger patients with lymphoma or CLL may require additional information, attention, and support. In the future, LC would like to explore how demographic differences may have confounded results. Figure 1 Figure 1. Disclosures No relevant conflicts of interest to declare.


Author(s):  
Paul W Turke

Abstract The severity of COVID-19 is age-related, with the advantage going to younger age groups. Five reasons are presented. The first two are well-known, are being actively researched by the broader medical community, and therefore are discussed only briefly here. The third, fourth, and fifth reasons derive from evolutionary life history theory, and potentially fill gaps in current understanding of why and how young and old age groups respond differently to infection with SARS-CoV-2. Age of onset of generalized somatic aging, and the timing of its progression, are identified as important causes of these disparities, as are specific antagonistic pleiotropic tradeoffs in immune system function.


2016 ◽  
Vol 04 (01) ◽  
pp. 023-030
Author(s):  
Vimal Kumar ◽  
Pallak Arora ◽  
Manish Khatri ◽  
Shivani Sharma ◽  
Sumit Malhotra ◽  
...  

Abstract Objective: To estimate the prevalence of periodontal disease with different indices. Methods & materials: The study population consisted of multistage stratified random sample of 1300 subjects from total population of district Ghaziabad. A cross-sectional study was conducted with multi stage stratified random sampling techniques to select the sample population. The subjects were divided into different age groups and the periodontal assessment was made on the basis of CPITN index and ESI Index. Results: The CPITN has shown to estimate incorrect periodontal disease prevalence because of its underestimation of the disease severity. A huge difference was noticed in the prevalence rate of periodontitis when subjects were examined with ESI index. Conclusion Periodontal disease was found to be highly prevalent in the study population and severity of disease increased with age. More number of subjects in younger age group were found to be healthy.


2001 ◽  
Vol 8 (3) ◽  
pp. 556-559 ◽  
Author(s):  
Jaime Inostroza ◽  
Ana Maria Vinet ◽  
Gloria Retamal ◽  
Pedro Lorca ◽  
Gonzalo Ossa ◽  
...  

ABSTRACT All clinical S. pneumoniae specimens isolated from patients with invasive or sterile-site infections admitted to one regional general hospital in southern Chile were collected during a 5-year period (February 1994 to September 1999). A total of 247 strains belonging to 50 serotypes were isolated in this survey: 69 in patients under 5 years of age, 129 in patients 5 to 64 years old, and 49 from patients 65 years and older. Eight serotypes were identified in all age groups, while all other serotypes were found exclusively in one age group or in patients over 4 years of age. Serotype 3 was never found in patients under 5 years old, and serotype 14 was not found in patients >64 years of age. There was no difference in the serotypes causing infection in each one of the 5 years of the survey. Our results suggest that both bacterial virulence factors and host factors play an important role in the selection of S. pneumoniae serotypes causing invasive infection. Possible host factors include age-related differences in the immune response. Comparative studies with other areas of the world may help to further understanding of our observations in southern Chile.


2022 ◽  
Vol 8 (1) ◽  
Author(s):  
Till Koopmann ◽  
Franziska Lath ◽  
Dirk Büsch ◽  
Jörg Schorer

Abstract Background Research on talent in sports aims to identify predictors of future performance. This study retrospectively investigated 1) relationships between young handball field players’ technical throwing skills and (a) their potential nomination to youth national teams and (b) their long-term career attainment 10 years later, and 2) associations between nomination status and career attainment. Results Results from retrospectively predicting nomination status and career attainment using logistic regression analyses show that technical throwing skills were partly able to explain players’ nomination status (Nagelkerke R2: females 9.2%, males 13.1%) and career attainment (Nagelkerke R2: 9.8% for female players). Here, variables throwing velocity and time on exercise showed statistically significant effects. In addition, nomination status and career attainment were shown to be associated using chi-square tests (w of .37 and .23 for female and male players, respectively) and nomination status as a predictor increased the prediction of career attainment remarkably (Nagelkerke R2: females 20.3%, males 12.7%). Conclusions Given these results, basic technical throwing skills may serve rather as a prerequisite in this age group on national level, emphasizing its importance already on lower levels and in younger age groups. Furthermore, advantages from entering the national TID system early especially for females are discussed.


2019 ◽  
Vol 6 (1) ◽  
pp. 101
Author(s):  
Pallavi Panchu ◽  
Biju Bahuleyan ◽  
Rose Babu ◽  
Vineetha Vijayan

Background: Adipose tissue mainly visceral fat is said to be harmful and acts as a harbinger of metabolic disorders. A changing trend is seen in the recent decades with decreasing incidence of metabolic disorders in men even though visceral fat is said to be higher in them. Sex hormones may influence the deposition pattern of adipose tissue. The aim of this study was to observe effects of age on visceral fat and to know if the difference in gender pattern of fat distribution is maintained throughout life or disappears after menopause.Methods: This cross-sectional observational study was conducted in Thrissur on 385 apparently healthy subjects using Omron body composition analyser. Data was analysed using SPSS 20.0 version. The tests employed were NOVA, independent samples t-test.Results: In each age group, men had significantly higher visceral fat than females. As age increased, visceral fat increased significantly in both genders. In each group, except for younger age groups, VF levels were equal in men and women.Conclusions: Visceral fat is higher in men and this difference is seen in all age groups. As age increases, visceral fat levels also increased in men and women. The distribution of visceral fat is such that a greater number of men have high to very high levels at a younger age group, a feature observed in women only in the peri and post-menopausal age. Adoption of an active lifestyle coupled with healthy diet should protect against onset of metabolic disorders.


PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249906
Author(s):  
Richard Hauer ◽  
Paul Störchle ◽  
Bettina Karsten ◽  
Harald Tschan ◽  
Arnold Baca

This study investigated the activity profile during small-sided games (SSG) in elite youth soccer players. Internal load (IL) including heart rate (HR) and external load (EL) such as distance covered in different speed-zones (SZ) were collected from forty-eight players of three different teams (U15, U16, U18). The investigation included a total of eighteen 5vs.5 SSGs, each consisting of four 2-minute bouts on a 40x32m pitch during spring season. Total group results (n = 48) showed a reduction in total-distance (p = 0.001; ηp2 = 0.12), high-intensity-running (p = 0.009; ηp2 = 0.09), and low-intensity-running distance (p = 0.028; ηp2 = 0.07) between bouts. Similarly, a reduction in the number of both acceleration-low (p = 0.001; ηp2 = 0.12) and deceleration-high (p = 0.003; ηp2 = 0.11) values was observed. Additionally, time spent in HR-zones 3 and 4 (p≤0.007; ηp2 ≥ 0.10), increased, with a reduction in HR-zone 1 (p = 0.000, ηp2 = 0.25). Age group comparison showed less distance covered in SZ 1 (p≤0.000; ηp2 = 0.56) and greater deceleration-high values (p≤0.038; ηp2 = 0.32) in U15 players compared to other age groups. Further, U15 showed lower values in low-intensity-running compared to U18 (p = 0.038; ηp2 = 0.22). No age-related differences were found for IL and repeated sprint ability (RSA) values. The higher EL in younger age groups should be taken into account when implementing soccer specific SSGs. In addition, HRmean values between 80–85% of HRmax and RSA numbers, which are similar to match-play data, indicate SSGs as an effective training tool to prepare youth soccer athletes for the demands of competition.


2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Purva Sarkate ◽  
Supriya Paranjpe ◽  
Nayana Ingole ◽  
Preeti Mehta

Introduction. Burden of HIV in pregnant women follows overall epidemic in India. Hence, it is imperative that prevalence calculations in this group be accurate. The present study was carried out to determine prevalence of HIV in pregnant women attending our hospital, to determine trend of HIV infection and to compare our results with reported prevalence. Methods. All pregnant women are routinely counselled for HIV testing using opt-out strategy. Year-wise positivity and trend were determined in these patients over a period of five years. The positivity in different age groups was determined. Results. 31,609 women were tested of which 279 (0.88%) were positive. Positivity showed a declining trend over study period and significant quadratic trend (biphasic, P<0.05) was observed. The positivity in older age group ≥35 years (1.64%) was significantly more than younger age groups (0.76% in 15–24-year and 0.94% in 25–34-year age group) (P=0.0052). Conclusion. A significant decline in HIV positivity was seen over the study period. Taking into account heterogeneous nature of HIV epidemic even within the same district, analysis at local levels especially using the prevention of parent to child transmission of HIV program data is critical for HIV programming and resource allocation.


1996 ◽  
Vol 85 (3) ◽  
pp. 410-418 ◽  
Author(s):  
Giuseppe Lanzino ◽  
Neal F. Kassell ◽  
Teresa P. Germanson ◽  
Gail L. Kongable ◽  
Laura L. Truskowski ◽  
...  

✓ Advanced age is a recognized prognostic indicator of poor outcome after subarachnoid hemorrhage (SAH). The relationship of age to other prognostic factors and outcome was evaluated using data from the multicenter randomized trial of nicardipine in SAH conducted in 21 neurosurgical centers in North America. Among the 906 patients who were studied, five different age groups were considered: 40 years or less, 41 to 50, 51 to 60, 61 to 70, and more than 71 years. Twenty-three percent of the individuals enrolled were older than 60 years of age. Women outnumbered men in all age groups. Level of consciousness (p = 0.0002) and World Federation of Neurological Surgeons grade (p = 0.0001) at admission worsened with advancing age. Age was also related to the presence of a thick subarachnoid clot (p = 0.0001), intraventricular hemorrhage (p = 0.0003), and hydrocephalus (p = 0.0001) on an admission computerized tomography scan. The rebleeding rate increased from 4.5% in the youngest age group to 16.4% in patients more than 70 years of age (p = 0.002). As expected, preexisting medical conditions, such as diabetes (p = 0.028), hypertension (p = 0.0001), and pulmonary (p = 0.0084), myocardial (p = 0.0001), and cerebrovascular diseases (p = 0.0001), were positively associated with age. There were no age-related differences in the day of admission following SAH, timing of the surgery and/or location, and size (small vs. large) of the ruptured aneurysm. During the treatment period, the incidence of severe complications (that is, those complications considered life threatening by the reporting investigator) increased with advancing age, occurring in 28%, 33%, 36%, 40%, and 46% of the patients in each advancing age group, respectively (p = 0.0002). No differences were observed in the reported frequency of surgical complications. No age-related differences were found in the overall incidence of angiographic vasospasm; however, symptomatic vasospasm was more frequently reported in the older age groups (p = 0.01). Overall outcome, assessed using the Glasgow Outcome Scale at 3 months post-SAH, was poorer with advancing age (p < 0.001). Multivariate analysis of overall outcome, adjusting for the different prognostic factors, did not remove the age effect, which suggests that the aging brain has a less optimal response to the initial bleeding. Age as a risk factor is a continuum; however, there seems to be a significant increased risk of poor outcome after the age of 60 years.


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