جستجوی مقالات مرتبط با کلیدواژه "فسفاتاز قلیایی" در نشریات گروه "پزشکی"

Secondary hyperparathyroidism (SHPT) is one of the serious complications in patients with chronic kidney disease (CKD). This study aimed to identify biochemical alterations of renal bone disease in hemodialysis patients of Qazvin province. In a descriptive study, fasting blood samples of arterio-venul shunt, before starting hemodialysis, were taken from all CKD patients and Ca++, P-- and ALP were measured by colorimetric methods and PTH by IRMA method. Descriptive statistics was used to present data. In 4% of cases there were no abnormalities of mentioned parameters but in 96% of patients one or more parameters were abnormal. The most prevalent abnormality was related to P-- (increased) and the least one to ALP (increased). 51% of patients had raised PTH level (hyperparathyroidism) and higher abnormalities of other biochemical parameters. No differences were seen in the mean of age, duration and number of hemodialysis and also sex ratio of hyperparathyroid patients and all studied patients. The Biochemical and hormonal results revealed a predominance of mild to moderate secondary hyperparathyroidism and renal bone disease in CKD patients, so there is a need to control the disease with specific treatments.

Manna taranjebin is produced by an insect, Poophilus nebulosus, on camel's thorn plant. The manna has been traditionally used in herbal medicine and recent studies have studied/confirmed some of its therapeutic effects. In this study, some potential toxic effects of taranjebin were studied. In the first experiment, 4 groups of 6 mice (25.60.40g) received different doses of taranjebin (0.6-4.8g/kg/d) orally. The control group (n=6) received similar volumes (10ml/kg) of normal saline. In the second experiment, different groups of mice (n=5, 25.6±0.45g) were injected similar doses of taranjebin or placebo intraperitoneally. In both studies, the mice were watched for clinical sings during 10 days of experiments. Weight gains were measured in both experiments, and the mice in the second experiment were blood sampled for assessment of serum urea, creatinine, total bilirubin, alkaline phosphatase (ALP) and alanine aminotransferase (ALT). No significant differences, regarding weight gain or the studied serum parameters, were observed between the control groups and those receiving taranjebin. It is concluded that even in high doses, taranjebin does not exert detectable toxic effects in the studied variables.

Bone changes are typical complications of thalassaemia major, with unknown pathogenesis. There are only a few studies concerning mineral metabolism and parathyroid hormone (PTH) level in the patients whit this disorder, but the number of cases are limited and results are controversial. Since there are many major beta-thalassemic patients in Kerman area, the present study investigated the related factors in bone metabolism of these patients including PTH, ionized calcium, inorganic phosphate, and alkaline phosphatase level in patients with different age. In a cross sectional study, blood samples (5ml) were collected from 200 patients refferiry to the thalassemia clinic for blood transfusion. The patients were divided into five different age groups (<2, 3-7, 8-12, 13-16 and 17-24 years), and their results were compared with the results obtained from 83 healthy subjects as control group. Furthermore, a questionnaire was filled by a physician for all the patients and the control group, which included height, weight, and clinical symptoms of calcium deficiency. For comparison of height and weight, patients were divided into 24 groups according to their age. Analysis of data showed significant decreases (p<0.001) in serum level of PTH and calcium of all the patients, while there were significant increases in the level of the inorganic phosphate of them (p<0.01). Furthermore, alkaline phosphatase was increased significantly (p<0.05) only in the children < 2 years, compared with the respective control group, while there were no significant changes among the other age groups. Symptoms of calcium deficiency such as paraesthesia were detected in 28%, muscular spasm in 7%, and seizure in 7.5% of the patients. Statistically, only one year old patients had normal height and weight, while significant decreases were detected for the other age groups (p< 0.05), which became more predominant in the older patients (p<0.001). The present study indicated that the lower secretion of PTH following the deposition of iron in different tissues (89.5% of the patients had ferritin level of above 1500 ng/ml, and 91% had no regular desfral use), that causes the reduction of ionized calcium, and increase of inorganic phosphate. Furthermore, Low level of PTH leads to impaired metabolism of calcium and phosphate, and lower stature and body weight of these patients.

Primary hyperparathyroidism is not nowadays considered a rare disease and according to some reports, its incidence is 1/1000. This disorder can be accompanied with severe complications including renal failure and bone illnesses and this can highly elevate the treatment costs and causes social problems and troubles within families. The descriptive strategy of this study was carried out on 30 patients with primary hyperparathyroidism and it was attempted to demonstrate its clinical symptoms, paraclinical signs, and radiological findings and to compare it with the related data of other western countries and in this way to propose recommendations for rapid diagnosis and appropriate management of the patients. The results showed that the most common clinical findings were bone pains, renal stone, weight loss and generalized weakness. In addition, nearly half of them were confined to bed. The average time elapsed to make a definite diagnosis was 5.8 ± 5 years. Radiologic findings showed reduced mineralization, subperiosteal bone resorption, salt and pepper appearance for cranial bones and bone fracture in 93, 86, 76, 60 and 47% of cases. Furthermore, the level of serum calcium, phosphorus, alkaline phosphatase and the patientchr('39')s PTH divided by upper limit of normal PTH were 11.2 ± 1.3 mg%, 2.2 ± 0.5 mg%, 1346 ± 1335 IU/1 and 4.2 ± 2.8 respectively. Pathologic findings verified solitary adenoma in 25% of cases, double adenoma in I case, four gland hyperplasia in 2 of the cases and two cases of parathyroid cancer. It is concluded that manifestations of patients with primary hyperparathyroidism are different from those residing in western countries. Since routine measurment of serum calcium is not available and the patients are diagnosed when the disease has progressed far advanced, then it is better to keep it in mind that differential diagnosis of patients with bone pain and renal stone should be made to establish the diagnosis earlier and prevent the ensuing complications.