PubMed Health⌕ Search

Biomedical subjects

Małgorzata Mossakowska

Publications and source records attributed to Małgorzata Mossakowska.

6 recordsLinked to original sources
PubMed2006

Can an increased level of circulating IL-8 be a predictor of human longevity?

BACKGROUND: Interleukin-6 (IL-6) and IL-8 are considered to be potent inflammatory agents. However, IL-8 has also been reported to serve as an organ protective factor. The goal of our study was to compare the circulating levels of IL-8 and IL-6 in C-reactive protein (CRP)-negative subjects of different ages. MATERIAL/METHODS: Seventy subjects living in the Wielkopolska region were enrolled into the study and divided into three groups: group 1-30 young healthy subjects 21-37 years of age; group 2-30 healthy elderly individuals, age 65-87; group 3-10 centenarians (100-105 years). In all of these subjects, serum levels of IL-6 and IL-8 were assessed with an enzyme-linked immunosorbent assay. RESULTS: Concerning IL-6, both the serum concentration and the frequency of results above the sensitivity limit were comparable in all groups. With respect to IL-8, the frequency of results beyond the sensitivity limit in groups 1 and 2 did not differ significantly (5/30 and 8/30, respectively). By contrast, the majority of subjects from group 3 had an IL-8 level above the limit (9 out of 10; p<0.0001 vs. group 1 and p=0.0007 vs. group 2). In addition, the serum concentration of IL-8 in group 3 was higher than in both the other groups (p<0.01). Moreover, there was a positive correlation between the age of analysed subjects and their level of IL-8 (r=0.450; p<0.0001). CONCLUSIONS: It seems possible that an association of an increased serum level of IL-8 and a low level of IL-6 is related to longevity.

Adult↗
PubMed2006

Correlation between the level of cytogenetic aberrations in cultured human lymphocytes and the age and gender of donors.

To answer whether the age-related accumulation of chromosomal damage differs in men and women, and whether the aberration level in centenarians is proportional to their age, cytogenetic aberrations in dividing cells were analyzed. G-band karyotyping of mitotic spreads from lymphocytes was performed in 52 Polish centenarians and 71 controls (aged 21-78). Statistical evaluation was performed using nonparametric tests and regression analysis. The average level of all chromosomal aberrations was comparable in centenarians of both genders, but the age-related increase in chromosomal damage occurred faster in women than in men. Aging in both genders was marked by the increasing level of all aberrations rather than by chromosome-specific changes; the loss of X chromosome was the leading contributor in women. The age-related increase in the level of chromosomal damage reflected accumulation of dividing cells with a small number of aberrations. Individuals who survive to the extreme old age appear to accumulate aberrations at the slower rate.

Adult↗
PubMed2006

The prevalence of cardiovascular risk factors among centenarians is low: risk factors in centenarians.

BACKGROUND: The presence of major cardiovascular risk factors was investigated in a group of centenarians. METHODS: The following risk factors: sex, smoking, overweight, diabetes, hypertension and hypercholesterolemia were analysed in 93 centenarians and compared with data obtained from 90 individuals age 40-60 years. RESULTS: Smoking, overweight and hypercholesterolemia were found statistically more often in a younger population, whereas hypertension was diagnosed more frequently in centenarians. No or one risk factor were found in 55.4% of centenarians and in 14.2% of younger subjects. CONCLUSIONS: Centenarians are characterized by a much better cardiovascular risk profile than middle-aged individuals. This indicates that longevity is related to low cardiovascular risk.

Adult↗
PubMed2005

[Hematologic parameters in Polish centenarians].

We undertook this study to characterize the haematological indices in centenarian subjects who should be an excellent group to study the mechanisms of physiological aging. This study is a part of the Polish Centenarians Program co-ordinated by the International Institute of Molecular and Cell Biology in Warsaw. We examined 89 subjects aged 100 to 111 (14 males and 75 females). Mean values of all haematological parameters were within the normal range in females. In males, haemoglobin level (Hb), red blood cell count (RBC) and hematocrit (Hct) were slightly lower than WHO references (12.7 +/- 1.3 g/dl, 4.10 +/- 0.48 M/ml and 38.4 +/- 3.8%, respectively). However, anaemia was more frequent in females than in males (57.1% vs 29.1%, p < 0.05). In females with anaemia there was a tendency to decrease its severity with age. In the oldest group (aged 105-111 years) Hb and Hct had a tendency for lower values vs the youngest group (100-101 years) (10.1 +/- 1.8 g/dl vs 11.6 +/- 0.1 g/dl, p = 0.067 and 30.9 +/- 5.0% vs 35.0 +/- 0.3%, p = 0.067). Additionally, in the youngest group there were three females with severe anaemia (Hb < 9.0 g/dl) whereas in the oldest group all females with anaemia had Hb above 11.0 g/dl. In males the analysis was not undertaken because of small group of studied subjects. In conclusion, anaemia seems to be a relatively common problem in studied centenarians. Severe anaemia seems to be an eliminating factor in centenarian women.

Age Factors↗
PubMed2005

[Morphology of neutrophils in centarians].

Recently, centenarians are involved in many research programs as they are believed to represent so-called successful aging. The aim of the study was to characterize morphological alterations observed in neutrophils from their peripheral blood. The study involved 40 centenarians (group B--34 females and 6 males) as well as 40 young healthy subjects aged 20-30 years (group K--35 females and 5 males). The study is a part of the Polish Centanarians Program coordinated by the International Institute of Molecular and Cell Biology in Warsaw. In this study, the morphometry of neutrophils from blood smear was performed in all studied subjects. Additionally, in centenarians, the relationship between observed alteration and serum level of vitamin B12 and folic acid was analyzed. Both the mean size of granulocytes and the mean value of neutrophil lobe counts were higher in group B vs group K (15.5 +/- 0.6 mm and 13.9 +/- 0.7 mm; p<0.0001 and 4.01 +/- 0.7 and 3.2 +/- 0.2; p<0.0001). Chromatin chips and toxic granules in cytoplasm were observed more often in centenarians as well (39/40 vs 20/40--p<0.0001 and 40/40 vs. 23/40--p<0.0001; respectively). In centenarians, there was no relationship between the presence of morphological alterations in granulocytes and the serum level of vitamin B12 and folic acid. In conclusion, morphological alterations were very common in studied centenarians. Detailed analysis of biochemical parameters and clinical status is necessary to answer the question about their pathomechanism.

Adult↗