Page 68 - GALENIKA MEDICAL JOURNAL
P. 68

Risk factors and complications                     (raloxifene,  lasofoxifene,  arzoxifene),  calcium  and  vitamin
          of osteoporosis                                    D supplements, the application of monoclonal antibodies,
                                                             and hormone therapy (phytoestrogens, estrogens, testoste-
             Risk  factors  for  osteoporosis  include:  female  gender,   rone) 27-30 .
          age 50 and older, caucasian, genetic predisposition, low he-
          ight, malnutrition, physical inactivity, late menarche, early
          menopause, conditions of estrogen and androgen deficien-  Preventive measures
          cy, alcohol consumption, smoking cigarettes, calcium-poor
          diet, and the use of certain medications (steroids, insulin,   Lifestyle  changes  and  non-pharmacological  measures
          anticonvulsants, chemotherapeutics, heparin).      are crucial for maintaining healthy bones. Physical activity,
                                                             adequate  calcium  and  vitamin  D-rich  diet,  avoiding  smo-
             Osteoporosis is the leading cause of bone fractures in   king, and limiting alcohol consumption are of immense im-
          the elderly population and the primary cause of all fractures   portance for individuals of all ages, especially in older age.
          (over 80% of cases of all fractures in individuals over 50 ye-  Implementing  these  measures  yields  positive  outcomes
          ars old). If complete healing is not achieved, chronic painful   even in patients with established osteoporosis, leading to
          conditions, limited mobility, and in some cases even death   increased bone strength and reduced risk of fractures.
          (fractures of the vertebrae and hips) can occur .
                                               24
                                                                The  goals  of  preventive  strategies  include  optimizing
                                                             the development of the skeletal system and achieving peak
          Diagnosis of osteoporosis                          bone mass during skeletal maturity, preventing secondary
                                                             causes of bone loss, preserving the structural integrity of
             Bone  densitometry  measures  the  difference  in  the   bones, and preventing fractures.
          absorption  of  gamma  or  X-rays,  ultrasound,  or  laser  in
          bones and soft tissue. It provides the opportunity to mea-  Balanced  and  healthy  nutrition  ensures  adequate  in-
          sure bone mineral content (g) and indirectly measure bone   take of calcium and vitamin D. Malnutrition, anorexia, and
          density (g/cm ).                                   excessive aerobic activity in young women lead to delayed
                     2
                                                             menarche and lower bone mass compared to peers. A si-
             Dual-energy X-ray absorptiometry (DXA) is a widely used   milar situation is observed in adults undergoing restrictive
          method  that  offers  exceptional  resolution  and  precision.   diets and surgical weight loss methods. A balanced intake
          The scanning process is brief, meaning whole-body mine-  of protein (the recommendation is that daily intake should
          ral content measurement is fast, reliable, safe, and highly   be 0.8 g/kg of body weight) helps minimize bone loss even
          reproducible,  thereby  reducing  issues  with  superimposi-  in patients with established osteoporosis .
                                                                                              31
          tion  with  surrounding  soft  tissues.  The  apparatus  utilizes
          X-rays as an energy source. DXA measurements of the hip   The fundamental aspect of osteoporosis prevention and
          and spine represent a widespread standard in osteoporosis   treatment is calcium. For women over 50 years of age, the
          diagnosis. Measurement via DXA and laser absorptiometry   recommended  daily  calcium  intake  is  1.200  mg  (through
          (Dual-energy X-ray Laser, DXL) of the calcaneus bone ser-  diet and supplementation, if conducted). In situations whe-
          ves as an alternative to DXA. This technique was developed   re dietary intake does not provide sufficient calcium, calci-
          to avoid measurement errors associated with surrounding   um supplementation is necessary. Data show that the daily
          soft tissue during DXA.                            dietary intake for most patients is up to 600 mg, which is
                                                             only half of the required daily dose. If supplementation is
             Quantitative  Computed  Tomography  (QCT)  measures   used, for optimal absorption, the calcium dose should not
          thin cross-sectional slices. With the aid of computer analysis,   exceed 500 mg per dose. It has been proven that calcium
          bone mineral density is measured, and the density of trabe-  supplementation increases bone mineral density, but there
          cular and cortical bone is particularly assessed.  is no scientific evidence that its use alone, without simul-
                                                             taneous  vitamin  D  supplementation,  reduces  the  risk  of
             Quantitative  Ultrasonography  (QUS)  is  a  method  of
          bone densitometry measured by ultrasound. Its advantage   fractures.  Calcium  supplementation  is  safe  for  users.  The
          lies in avoiding radiation, and the apparatus is easily por-  risk of nephrolithiasis (kidney stone formation) in patients
          table. However, measurements are not as precise as with   on supplementation is minimally higher compared to the
          other imaging techniques 25, 26 .                  general population (the risk of nephrolithiasis in patients on
                                                             supplementation is 2.5%, while in the general population,
                                                             this risk is 2.1%) .
                                                                          32
          Treatment of osteoporosis                             Calcium  supplementation  should  be  accompanied  by
             Contemporary  pharmacological  treatment  for  oste-  vitamin D. Many, otherwise healthy individuals have signi-
          oporosis  includes  the  use  of  bisphosphonates  (alendro-  ficantly  lower  serum  levels  of  25(OH)D  compared  to  the
          nate,  etidronate,  ibandronate,  risedronate,  zoledronic   optimum level. This is primarily due to inadequate dietary
          acid),  Selective  Estrogen  Receptor  Modulators  (SERMs)   intake because vitamin D is not widely available in foods.
                                                             It is found in fish oil, cereals, and bread. According to the


          66     DOI: 10.5937/Galmed2409072B
   63   64   65   66   67   68   69   70   71   72   73