scholarly journals The Role of Parathyroid Hormone in Alveolar Bone Resorption on Postmenopausal Women

2020 ◽  
Vol 14 (1) ◽  
pp. 82-87
Author(s):  
Susi R. Puspitadewi ◽  
Lindawati S. Kusdhany ◽  
Sri Lelyati C. Masulili ◽  
Pitu Wulandari ◽  
Hanna B. Iskandar ◽  
...  

Background: Postmenopausal women exhibit reduced bone mineralization, which causes bone resorption, including that of alveolar bone. Parathyroid hormone has been shown to play a role in alveolar bone resorption. Objective: This study aims to analyze relationships between parathyroid hormone and other factors that may contribute to alveolar bone resorption in postmenopausal women. Methods: This cross-sectional study included 82 postmenopausal women aged 50–74 years, who resided in Central and East Jakarta, Indonesia. Subjects' data were obtained through questionnaires, dental examinations, and blood collection for the examination of parathyroid hormone levels by enzyme-linked immunosorbent assay and using panoramic radiography to measure bone resorption. Results: Spearman correlation analysis showed a significant correlation between parathyroid hormone level (p = 0.005) and extent of alveolar bone resorption, but age (p = 0.292), menopausal duration (p = 0.244), and number of missing teeth (p = 0.517) were not significantly correlated with the extent of alveolar bone resorption. Conclusion: Various factors play a role in the mechanism of bone resorption, so knowing the role of each factor is expected to reduce the effects of alveolar bone resorption that occurs in postmenopause. Among the factors investigated in this study, the parathyroid hormone was the sole factor correlated with postmenopausal alveolar bone resorption.

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Husniah Batool ◽  
Ahmed Nadeem ◽  
Muhammad Kashif ◽  
Faheem Shahzad ◽  
Romeeza Tahir ◽  
...  

Background/Purpose. Chronic periodontitis is an inflammatory disease of gums that causes loss of supporting structures of teeth, that is, gingiva, periodontal ligament, cementum, and alveolar bone. Levels of various cytokines in the serum, gingival tissues, and gingival crevicular fluid in patients with chronic periodontitis have been studied, but limited data are available on the level of cytokines in saliva. Therefore, a study was designed to determine levels of salivary IL-6 and IL-17 in patients with calculus associated chronic periodontitis. Materials and Methods. It was a comparative, cross-sectional study that is comprised of 41 healthy controls and 41 calculus associated chronic periodontitis patients (CP patients). According to the degree of attachment loss, CP patients were subcategorized as mild (CAL 1-2 mm), moderate (CAL 3-4 mm), and severe (CAL > 5 mm) forms of periodontitis. Salivary levels of IL-6 and IL-17 were determined using enzyme-linked immunosorbent assay (ELISA) technique. Data was analyzed using SPSS 20.0. Results. Between healthy controls and CP patients (moderate and severe disease), a statistically significant difference was observed in the concentrations of IL-6 and IL-17. In CP patients, the highest mean ± SD of salivary IL-6 and IL-17 was observed in severe CP, followed by moderate and mild CP. Regarding level of IL-6, a statistically significant difference was observed between mild and severe disease and between moderate and severe subcategories of CP patients. Similarly, statistically significant difference was observed in the level of IL-17 between mild and moderate, mild and severe disease, and moderate and severe disease. Conclusion. The levels of salivary IL-6 and IL-17 were increased significantly in calculus associated CP patients as compared to healthy controls and these levels increased with the progression of CP. Clinical Significance. Salivary levels of IL-6 and IL-17 may help in the subcategorization of CP.


2018 ◽  
pp. 1-5
Author(s):  
L. Murthy ◽  
P. Dreyer ◽  
P. Suriyaarachchi ◽  
F. Gomez ◽  
C.L. Curcio ◽  
...  

Background: Frailty is associated with poor outcomes hence identification of risks factors is pivotal. Since the independent role of parathyroid hormone (PTH) in frailty remains unexplored, we aimed to determine this in a population of older individuals with a history of falling. Design: Cross-sectional study. Setting: Falls and Fracture Clinic, Nepean Hospital (Penrith, Australia). Participants: 692 subjects (mean age=79, 65% women) assessed between 2009-2015. Measurements: Assessment included clinical examination, mood, nutrition, grip strength, gait velocity, bone densitometry and posturography. Chemistry included serum PTH, calcium, vitamin D (25(OH)D3), creatinine and albumin. Normocalcemic subjects were divided into 4 groups: (1) Normal: 25(OH)D3 >50nmol/L and PTH between 1.6-6.8pmol/L; (2) PTH responsive: low 25(OH)D3 (<50nmol/L) and high PTH (>6.8pmol/L); (3) PTH unresponsive: low 25(OH)D3 and normal PTH; (4) Hyper PTH (>6.8pmol/L) with normal 25(OH)D3. Frailty was defined using Fried’s criteria. Difference between the groups was assessed using one-way ANOVA and X2 analysis. Multinomial logistic regression evaluated the association between the groups and the number of Fried’s criteria adjusted for age, BMI, renal function, 25(OH)D3 levels, and albumin. Results: 22.6% subjects had high PTH levels (>6.8pmol/L). All subjects in the high PTH groups had significantly lower grip strength, gait velocity, limits of stability, and higher BMI. The PTH responsive group had a higher risk of pre-frailty (β=3.8, 95% CI = 3.42 – 5.22, p< 0.01) and frailty (β=8.26, 95% CI = 2.8-16.1, p<0.01). The risk of frailty was also higher in the Hyper PTH group (β=2.3, 95% CI = 1.74-4.32, p<0.01). Conclusion: We have reported an independent association of high PTH levels with high number of falls and with the clinical components of physical frailty in community dwelling older persons. Our results suggest a possible role of PTH in frailty that deserves further exploration.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Naoto Tominaga ◽  
Tomoki Yonaha ◽  
Masayuki Yamanouchi ◽  
Hirofumi Sumi ◽  
Yasuhiro Taki ◽  
...  

Abstract Background Parathyroid hormone (PTH) acts on bone to indirectly increase the number and activity of osteoclasts. Thus, PTH has a stimulatory effect on bone resorption and upregulates bone turnover. However, the responsiveness of bone to PTH varies widely among patients receiving dialysis. In fact, relative to the serum PTH level, the level of serum tartrate-resistant acid phosphatase-5b (TRACP-5b), a bone resorption marker derived from osteoclasts, varies as well. This study aimed to examine factors related to bone responsiveness to PTH in patients undergoing chronic hemodialysis (HD). Methods This study included patients receiving chronic HD in Kawasaki Municipal Tama Hospital (Kanagawa, Japan) and Yonaha Medical Clinic (Okinawa, Japan) and excluded patients who received HD for less than 6 months, those who received a combination of HD and peritoneal dialysis, and those who had cancer bone metastases or myeloma. The TRACP-5b/intact PTH (iPTH) ratio was created as an index of bone responsiveness to PTH, categorized into tertiles (low, medium, and high), and a cross-sectional study was conducted. P < 0.05 indicated statistically significant differences. Results One hundred and six patients were analyzed. Age (P = 0.010), body mass index (BMI) (P = 0.003), use of calcium-sensing receptor (CaSR) agonists (P = 0.008), use of vitamin D receptor activators (VDRAs) (P = 0.012), plasma iPTH level (P < 0.001), serum 1,25(OH)2D level (P = 0.003), and serum TRACP-5b level (P < 0.001) were significantly different among the three categories. In the single linear regression analysis, age (P = 0.016), corrected serum calcium level (P = 0.007), and ln [1,25(OH)2D] (P = 0.044) showed a significant positive correlation with ln [TRACP-5b/iPTH], whereas BMI (P = 0.026), use of CaSR agonists (P = 0.001), use of VDRAs (P = 0.009), and serum phosphorus level (P = 0.018) showed a significant negative correlation. Upon conducting multiple linear regression analysis incorporating significant variables in the single linear regression analysis, a significant negative correlation was observed between the TRACP-5b/iPTH ratio and intravenous administration of a CaSR agonist (etelcalcetide) and/or a VDRA (calcitriol or maxacalcitol) in all the adjusted models. Conclusions Bone responsiveness to PTH is negatively correlated with the intravenous administration of a CaSR agonist and/or a VDRA in patients undergoing chronic HD.


2019 ◽  
Vol 10 (4) ◽  
pp. 184
Author(s):  
Arezoo Haseli ◽  
Mozhgan Hashemzadeh ◽  
Afsaneh Keramat ◽  
Leila Mollaahmadi ◽  
Ashraf Ghiasi

2013 ◽  
Vol 5 (01) ◽  
pp. 51-54 ◽  
Author(s):  
Happy Chutia ◽  
Alice Abraham Ruram ◽  
Himashree Bhattacharyya ◽  
Polina Boruah ◽  
Chandan Nath

ABSTRACT Purpose: Secondary hyperparathyroidism (SHPT) is one of the less recognized reasons of anemia in chronic kidney disease (CKD). In this study, we evaluated the role of SHPT as a cause of anemia and correlation of intact parathyroid hormone (iPTH) and hemoglobin (Hb) level in hemodialysis (HD) patients. Methods: This cross-sectional study was carried out in 63 individuals admitted in HD unit of the institute. Serum samples were collected and urea, creatinine, Hb, ferritin and iPTH levels were measured. Statistical analysis was carried out using the SPSS software (IBM, NY, USA). Results: Mean ± standard deviation for serum urea, creatinine, Hb, ferritin and intact PTH were 177 ± 15.52, 15.16 ± 2.28 mg/dl, 7.03 ± 2.26 g/dl, 654.7 ± 563.4 ng/ml, 539.18 ± 493.59 pg/ml respectively. A reverse correlation was found between intact PTH and Hb level. Conclusions: A variety of postulated pathophysiological mechanisms linking SHPT and anemia in CKD are discussed. An efficient control of parathyroid hormone hypersecretion may be required to achieve a better management of anemia in HD patients.


2011 ◽  
Vol 6 ◽  
pp. BMI.S6150 ◽  
Author(s):  
Abdolreza Sotoodeh Jahromi ◽  
Parvin Zareian ◽  
Abdolhossein Madani

Overview The purpose of this study was to evaluate the role of Tumor Necrosis Factor-α (TNF-α) in insulin resistance (IR) during normal pregnancy. Approach This cross sectional study was carried out on 86 healthy pregnant women including 26, 23 and 37 individuals in the 1st, 2nd and 3rd trimesters, respectively, and in 21 healthy non pregnant women. Serum TNF-α concentration was measured by Enzyme Linked Immunosorbent Assay (ELISA) method. Results There were significant differences between serum TNF-α and IL-6 levels in pregnant women as compared with maternal healthy controls. There was significant correlation between gestational age and Body Mass Index (BMI) (r = 0.28, P = 0.01). There was no significant correlation between gestational age and insulin resistance (IR). We also did not find correlations between IR and TNF-α and IR and IL-6 in pregnant women. Conclusion In conclusion, our findings suggest that TNF-α and IL-6 are not greatly contributed to pregnancy induced insulin resistance in normal pregnancy.


2020 ◽  
Vol 8 (B) ◽  
pp. 1110-1115
Author(s):  
Mayetti Akmal ◽  
Amirah Zatil Izzah ◽  
Jamsari ◽  
Eriyati Darwin ◽  
Dadang Hudaya Somasetia

BACKGROUND: In general, angiopoietin-2 levels are increased concomitantly with dengue clinical severity. AIM: This research aims to determine the role of mutation on angiopoietin-2 on dengue clinical severity. METHODS: A cross-sectional study of 108 children with dengue disease grouped by severity. Angiopoietin-2 level was examined by enzyme-linked immunosorbent assay. Polymerase chain reaction and double nucleic acid sequencing are using 2 Exon 4-F primers. RESULTS: Angiopoietin-2 levels on rs7834131 mutant are higher in dengue fever (p < 0.05) and dengue hemorrhage fever group than non-mutant, while on dengue shock syndrome, it is lower than non-mutant. CONCLUSION: Angiopoietin-2 mutation on rs7834131 might have a protective effect on dengue disease severity.


2021 ◽  
pp. 1-5
Author(s):  
Ahmad Boluri ◽  
Hosseinali Khazaei ◽  
Narjes Sargolzaei ◽  
Hanie Olfat Miri ◽  
Bahman Khazaei

BACKGROUND: Interleukin (IL)-17 plays a central role in orchestrating the cytokine cascade and accelerates atherosclerosis and plaque vulnerability in animal models. However, epidemiological data evaluating the role of IL-17 levels in unstable angina are lacking. The aim of our study is to evaluate and compare the IL-17 levels in unstable angina (UA) cases before and after treatment. METHODS: This cross-sectional study was performed from July to October 2018 in Ali Iben-abitaleb heart center, Zahedan, Iran. 48 patients with UA in the age range of below 50 years entered the study. All demographic, past medical history, physical examination, electrocardiogram (EKG or ECG), and transthoracic echocardiogram (TTE) data were collected. Serum level of IL-17 was measured using enzyme-linked immunosorbent assay (ELISA) method. In all the tests, P< 0.05 was considered as statistically significant. All data analyses were performed using the SPSS 13.0 software (SPSS Inc., Chicago, Illinois, USA). RESULTS: In this study, 48 UA patients, including 34 women and 16 men with a mean age of 56.60 years were included in the study. The mean serum level of interleukin 17 after treatment (65.13 ± 53.29 pg/dl) was significantly lower than Its level before treatment (94.89 ± 51.25 pg/dL) (P< 0/05). CONCLUSION: Our findings point towards a role of inflammation in the form of increased activity of IL-17 in UA patients and thus suggest that IL-17-driven inflammation may play a role in the promotion of clinical instability in patients with coronary artery disease.


2020 ◽  
Vol 35 (2) ◽  
pp. 100-104
Author(s):  
Maksudur Rahman ◽  
Mohammad Abdullah Al Mamun ◽  
MAK Azad Chowdhury ◽  
Abu Sayeed Munsi

Background: Recently it has been apprehended that sildenafil, a drug which has been successfully using in the treatment of PPHN and erectile dysfunction in adult, is going to be withdrawn from the market of Bangladesh due to threat of its misuses. Objective: The aim of this study was to see the extent of uses of sildenafil in the treatment of PPHN and importance of availability of this drugs in the market inspite of its probable misuses. Methods: This cross sectional study was conducted in neonatal intensive care unit (NICU), special baby care unit (SCABU) and cardiac intensive care unit (CICU) of Dhaka Shishu (Children) Hospital from June, 2017 to May 2018. Neonates with PPHN were enrolled in the study. All cases were treated with oral sildenefil for PPHN along with others management according to hospital protocol. Data along with other parameters were collected and analyzed. Results: Total 320 patients with suspected PPHN were admitted during the study period. Among them 92 (29%) cases had PPHN. Male were 49(53 %) cases and female were 43(47%) cases. Mean age at hospital admission was 29.7±13.4 hours. Based on echocardiography,13(14%) cases had mild, 38 (41%) cases moderate and 41(45%) cases severe PPHN. Mean duration of sildenafil therapy was 11.9±7.1 days. Improved from PPHN were 83 (90%) cases. Mortality was 10% (9). Conclusion: In this study it was found that the incidence of PPHN is 29% among the suspected newborns. Sildenafil is successfull in improving the oxygenation of PPHN and to decrease the mortality of neonates. DS (Child) H J 2019; 35(2) : 100-104


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