Differences between bone mineral density, lean and fat mass of HIV-positive and HIV-negative black women

Objectives: To investigate the differences between bone mineral density (BMD), lean and fat mass of human immunodeficiency virus (HIV-) positive and HIV-negative black women and to investigate factors associated with low BMD. Methods: Case-control study of black women (n= 565) aged 29­65 years from Potchefstroom, North West province, South Africa, based on secondary analysis of data. Total BMD, left femur neck of the hip (LFN BMD), spine BMD, total fat, fat-free tissue mass and percentage body fat (%BF) were measured by dual-energy X-ray absorptiometry. Results: HIV-negative women had significantly higher median BMD, %BF, appendicular skeletal mass (ASM), ASM index, body mass index (BMI) and waist circumference than HIV-positive women. When the groups were matched for age and BMI, only spine BMD was marginally lower in HIV-positive women. In the total group, age, smoking and HIV status were associated with lower BMD, while calcium intake was positively associated with BMD. Similar variables were associated with BMD in HIV-negative women, while age and educational status were associated with BMD in HIV-positive women. Conclusion: Low BMD was more common among HIV-positive than HIV-negative women. Older HIV-positive women with low educational status are particularly at risk

Bone mineral density and trabecular bone score in patients with non-radiographic axial spondyloarthropathy

Background: spondyloarthropathies (SpA) are a group of chronic inflammatory rheumatic conditions that share multiple clinical features including axial and/or peripheral arthritis, enthesitis, absence of serum rheumatoid factor and presence of common extra articular manifestations. Objective: the aim of this work is to study bone mineral density and trabecular bone score at patients with non-radiographic axial spondyloarthropathy. Patients and Methods: this study is a cross sectional study in which 200 patients having chronic back pain selected from those attending the outpatient clinic and inpatient of Al-Azhar University Hospitals, Damietta and were divided into two groups: 1- (Group A, study group): (160) patients had inflammatory low back pain fulfilling Calin criteria for inflammatory low back pain. 2- (Group B, control group): (40) patients had mechanical low back pain not fulfilling criteria of inflammatory back pain. Results: regarding results of clinical examination, there was significant increase of arthritis, dactylitis, enthesitis and psoriasis in Group A when compared to Group B (43.3%, 16.7%, 30.0%, 20.0% vs 3.3%, 0.0%, 3.3% and 3.3% respectively). In addition, there was significant increase of arthritis plus dactylitis and arthritis plus enthesitis in Group A when compared to Group B (16.7%, 30.0% vs 3.3% and 0.0% respectively). Conclusion: results of the present study proved that, both bone mineral density and trabecular bone scores showed early changes in patients with non-radiographic axial spondylo-arthropathy. In addition, both correlated with each other and with results of axial magnetic resonance imaging. Thus, they are advocated in diagnosis of nr. SPA

Etude de la densité minérale osseuse et du risque de fracture chez les adultes diabétiques de type I

Introduction : L'impact du diabète de type 1 sur la masse osseuse et le risque de fracture reste un sujet de débat. Le but de ce travail est d'étudier la densité minérale osseuse et le risque de fracture au cours du diabète de type 1.Méthodes : Étude transversale cas-témoins incluant 40 patients diabétiques de type I et 40 témoins appariés selon l'âge et le sexe. Ont été exclus les sujets présentant une pathologie ou consommant un traitement pouvant être à l'origine d'une ostéoporose. La mesure de la densité minérale osseuse a été réalisée par la méthode DEXA au rachis lombaire et au col fémoral.Résultats : La densité minérale osseuse était diminuée de façon significative au rachis (p< 0,001) et au fémur (p = 0,001) chez les diabétiques de type 1 par rapport aux non diabétiques. La perte de masse osseuse chez les diabétiques était corrélée à un indice de masse corporelle plus bas (p = 0.018) ainsi qu'au déséquilibre du diabète (p= 0.012). Les fractures non traumatiques étaient plus fréquentes chez les diabétiques par rapport aux témoins (p < 0,001). Les facteurs de risque de fractures étaient les antécédents familiaux de fracture du col du fémur, l'existence d'une ostéoporose à la densitométrie, le tabagisme et l'existence d'une néphropathie. Conclusion : La perte osseuse ainsi que les fractures non traumatiques sont fréquentes au cours du diabète type I

Osteoporosis in Chronic Hepatitis C

Background and study aim: Hepatitis C virus infection is a multisystemic disease with many extrahepatic manifestations. Affection of bone matrix density is a common complication of chronic hepatitis and cirrhosis. The pathogenesis of osteoporosis in chronic liver disease is still unknown and is expected to be multifactorial. The aim of this work is to assess the frequency of osteoporosis/osteopenia in patients with chronic hepatitis C virus infection with or without cirrhosis.Patients and methods:This study was carried out on 30 patients with chronic HCV infection without cirrhosis (Group II); 30 patients with chronic HCV infection with compensated cirrhosis (Group III) and 20 age and gender matched healthy controls (Group I). All subjects of the study performed liver function tests; viral markers; liver biopsy; hormonal assay and Bone Mineral density measurement (BMD) by Dual energy X-ray absorptiometry (DEXA).Results : In patients with chronic hepatitis C (group II) the frequency of osteopenia was 11 (36.7); osteoporosis 2 (6.7); total patients with low BMD was 13 (43.3). In cirrhotic patients (group III); the frequency of osteopenia was 13 (43.3); osteoporosis was 3 (10.0); and total patients with low BMD was 16(53.3) vs 1(5.0) in the control group (group I). there was also no significant difference between patients with low BMD and patients with normal BMD as regards age; gender; common risk factors; liver function tests or hormonal levels.Conclusion : Reduced BMD is common chronic HCV-infected patients with and without cirrhosis. HCV infection is a risk factor of osteoporosis

Relationship between Sex Hormone Levels; Bone Mineral Density and Bone Turnover Markers in Healthy Moroccan Men: a Cross-Sectional Study

Introduction: gonadal steroid hormones play a crucial role during skeletal growth and maturation in both men and women. The aim of this study is to evaluate the relationship of sex hormone levels; bone mineral density and biochemical markers of bone turnover in healthy Moroccan men. Methods: 142 Moroccan men who had no previous diagnosis of osteoporosis were enrolled prospectively in this cross-sectional study between December 2009 and August 2010. Also; subjects were excluded from the study if they had conditions affecting bone metabolism. Different biochemical parameters were assayed: Testosterone; Estradiol; sex hormone binding globulin; Osteocalcin; vitamin D; crosslaps; intact parathyroid hormone and alkaline phosphatase. Dual-energy X-ray absorptiometry was used to measure the Bone mineral density (BMD) (g/cm2). Results: in this study; among the 142 Moroccan men; 29 (20.1%) had densitometry osteoporosis and the prevalence of vitamin D insufficiency was 94%. No correlation was found between Estradiol; Testosterone and bone mineral density but we found significant differences in the levels of Estradiol between patients with osteoporosis; osteopenia and normal patients. Bone mineral density at the lumbar spine was negatively correlated to hormone-binding globulin and positively correlated to free androgen index; free estrogen index and the Body mass index. BMD at the total hip was positively correlated to free androgen index; Body mass index and negatively correlated to sex hormone binding globulin; alkaline phosphatase; intact parathyroid hormone; osteocalcin; Crosslaps and age. Conclusion: our study showed that increasing age; intact parathyroid hormone and alkaline phosphatase levels and decreasing body mass index were the most important independent factors associated to the presence of a low BMD at the total hip. Increasing body mass index and free androgen index level were the most important independent factors associated to the presence of a low BMD at the lumbar spine. The combination of variable that best predicted the male osteoporosis is age; body mass index; alkaline phosphatase and cigarette smoking

Profile of the female athlete triad among elite Kenyan endurance athletes and non-athletes

Women participating in endurance sports are at risk of presenting with low energy availability (EA), menstrual dysfunction (MD), and low bone mineral density (BMD), collectively termed the female athlete triad (FAT or TRIAD). Therefore, the purpose of the study was to determine the profile of the TRIAD among elite Kenyan female athletes and among non-athletes. There were 39 participants (athletes: 25, non-athletes:14) who provided the data for this study. Exercise energy expenditure (EEE) was deducted from energy intake (EI), and the remnant energy normalized to fat free mass (FFM) to determine energy availability (EA). Weight of all food and liquid consumed during three consecutive days determined EI. EEE was determined after isolating and deducting energy expended in exercise or physical activity above lifestyle from the total energy expenditure output as measured by Actigraph GT3X+. Dual energy x-ray absorptiometry (DXA) determined both FFM and BMD. Menstrual function was determined from a daily temperature-menstrual log kept by each participant for nine continuous months. Low EA (<45 kcal/kgFFM.d-1) was evident in 61.53% of the participants (athletes: 28.07 ±11.45 kcal/kgFFM.d-1, non-athletes: 56.97 ±21.38 kcal/kgFFM.d-1). The overall 36% MD seen among all participants was distributed as 40% among the athletes, and 29% among non-athletes. None of the athletes was amenorrheic. Low BMD was seen in 79% of the participants (athletes: 76%, non-athletes:86%). Overall, 10% of the participants (athletes: 4, non-athletes: 0) showed simultaneous presence of all three components of the TRIAD. The Independent sample t-test showed significant difference (t=5.860; p< 0.001) in prevalence of the TRIAD between athletes and non-athletes. The hypothesized higher prevalence of the TRIAD among athletes compared to non-athletes was partially accepted. To alleviate conditions arising from low EA, both athletes and their coaches need regular education on how to ensure they adequately meet specific dietary and nutritional requirements for their competition events

Bone density and depression in premenopausal South African women: a pilot study

Objective: It is posited that the effect of depression on BMD is dependent on the severity of depression. Conflicting evidence exists regarding this possible association. This study investigated the association between depression and low bone mineral density (BMD). Methods: The hypothesis was investigated in a random sample of volunteers (n=40) and in premenopausal female psychiatric patients (n=5) diagnosed with recurrent severe major depression. The outcome measures were BMD (DEXA); depression (Beck Depression Inventory and Psychological General Well-being Scale) and 24-hour saliva cortisol levels (ELISA). In a comparison of women (4 of the 40 i.e. ""control"" subjects) with negligible symptoms of depression and the five patients with severe recurrent major depression- BMD; depression; saliva cortisol and bone turnover markers were measured and compared. Pro-inflammatory status (IL-1 and TNF-alpha) was investigated in the psychiatric patients only. Results: In the random - non clinical - sample of women (n=40); 26 exhibited normal BMD and 14 exhibited low BMD. Depressive symptoms and cortisol levels were not significantly different between these two groups. Women with severe recurrent major depression(n=5) exhibited lower median BMD T-scores; higher overall bone turnover and higher 24-hour cortisol levels compared to ""control"" subjects (n=4). The psychiatric patients also exhibited elevated IL-1 levels. Conclusion: The effect of depression on BMD may be dependent on the depression severity. IL-1 and cortisol are possible mediators in depression-induced BMD loss