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Ngamkam J, Vadcharavivad S, Areepium N, Auamnoy T, Takkavatakarn K, Katavetin P, Tiranathanagul K, Praditpornsilpa K, Eiam-Ong S, Susantitaphong P. The impact of CASR A990G polymorphism in response to cinacalcet treatment in hemodialysis patients with secondary hyperparathyroidism. Sci Rep 2021; 11:18006. [PMID: 34504264 PMCID: PMC8429569 DOI: 10.1038/s41598-021-97587-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/27/2021] [Indexed: 11/24/2022] Open
Abstract
The objective of this study was to determine the impact of calcium sensing receptor (CASR) A990G genetic polymorphism on parathyroid hormone (PTH) lowering response to cinacalcet treatment when controlling for significant influencing clinical factors. This retrospective study was conducted on 135 Thai hemodialysis (HD) patients with secondary hyperparathyroidism (SHPT). CASR A990G genotypes were determined. The patients were identified as either G carriers (heterozygous or homozygous CASR 990G allele carriers) or noncarriers (homozygous CASR 990A carriers). Tested covariates were baseline PTH level (bPTH), baseline serum phosphate (bPhos), baseline serum calcium (bCa), baseline calcitriol equivalent dose (bCtriol), baseline ergocalciferol dose (bErgo), and age. The ANCOVA showed that intact PTH levels after 12 weeks of cinacalcet treatment (PTHw12) was significantly lower among G carriers compared with noncarriers after controlling for bPTH, bPhos, bCtriol, and bErgo (F(1, 127) = 15.472, p < 0.001), with the adjusted mean difference of 253.7 pg/mL. The logistic regression analysis revealed that the odds of a G carrier achieving 30% PTH reduction after 12-week cinacalcet treatment were 3.968 times greater than the odds for a noncarrier after adjusting for bPhos, bCtriol, and age. In conclusion, the CASR A990G polymorphism significantly influences cinacalcet response in HD patients with SHPT.
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MESH Headings
- Age Factors
- Aged
- Alleles
- Calcitriol/blood
- Calcium/blood
- Calcium-Regulating Hormones and Agents/therapeutic use
- Cinacalcet/therapeutic use
- Ergocalciferols/blood
- Female
- Gene Expression
- Genotype
- Heterozygote
- Homozygote
- Humans
- Hyperparathyroidism, Secondary/blood
- Hyperparathyroidism, Secondary/genetics
- Hyperparathyroidism, Secondary/pathology
- Hyperparathyroidism, Secondary/therapy
- Logistic Models
- Male
- Middle Aged
- Parathyroid Hormone/blood
- Parathyroid Hormone/genetics
- Phosphates/blood
- Polymorphism, Single Nucleotide
- Receptors, Calcium-Sensing/blood
- Receptors, Calcium-Sensing/genetics
- Renal Dialysis/methods
- Renal Insufficiency, Chronic/blood
- Renal Insufficiency, Chronic/genetics
- Renal Insufficiency, Chronic/pathology
- Renal Insufficiency, Chronic/therapy
- Retrospective Studies
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Affiliation(s)
- Jaruwan Ngamkam
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Somratai Vadcharavivad
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Nutthada Areepium
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Titinun Auamnoy
- Faculty of Pharmaceutical Sciences, Burapha University, Chon Buri, 20131, Thailand
| | - Kullaya Takkavatakarn
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pisut Katavetin
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Khajohn Tiranathanagul
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kearkiat Praditpornsilpa
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
- Excellent Center of Geriatrics, King Chulalongkorn Memorial Hospital, Bangkok, 10330, Thailand
| | - Somchai Eiam-Ong
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Paweena Susantitaphong
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
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Okada M, Tominaga Y, Ichimori T, Tomosugi T, Hiramitsu T, Tsuzuki T. Surgical outcomes of parathyroidectomy for secondary hyperparathyroidism resistant to calcimimetic treatment: A retrospective single-center cohort study. Ther Apher Dial 2020; 25:188-196. [PMID: 32592622 DOI: 10.1111/1744-9987.13553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 12/20/2022]
Abstract
To evaluate the surgical outcomes of parathyroidectomy (PTx) for secondary hyperparathyroidism (SHPT) resistant to calcimimetic treatment, we retrospectively studied 187 patients with SHPT who had no history of calcimimetic treatment (NCMT) (NCMT group) and 186 patients with SHPT who were resistant to calcimimetic treatment (RCMT) (RCMT group). Success rate and operative time of PTx were compared among the two groups. Operative time was significantly longer in the RCMT group than in the NCMT group (180 vs 158 minutes, P < .001), but the difference was attenuated after multivariate adjustment including the weight of the largest parathyroid gland. No significant differences were observed in success rate of PTx (90.9% vs 91.4%, P = 1.000) between the two groups. In patients with SHPT who are resistant to calcimimetic treatment, operative time could be elongated but success rate of PTx remains unchanged.
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Affiliation(s)
- Manabu Okada
- Department of Transplantation and Endocrine Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Yoshihiro Tominaga
- Department of Transplantation and Endocrine Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Toshihiro Ichimori
- Department of Transplantation and Endocrine Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Toshihide Tomosugi
- Department of Transplantation and Endocrine Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Takahisa Hiramitsu
- Department of Transplantation and Endocrine Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Toyonori Tsuzuki
- Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Japan
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Kirnap NG, Kirnap M, Sayin B, Akdur A, Bascil Tutuncu N, Haberal M. Risk Factors and Treatment Options for Persistent Hyperparathyroidism After Kidney Transplantation. Transplant Proc 2020; 52:157-161. [DOI: 10.1016/j.transproceed.2019.11.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/25/2019] [Accepted: 11/10/2019] [Indexed: 12/24/2022]
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Tai TS, Hsu YH, Chang JM, Chen CC. Recurrent tertiary hyperparathyroidism due to supernumerary parathyroid glands in a patient receiving long-term hemodialysis: a case report. BMC Endocr Disord 2019; 19:16. [PMID: 30691427 PMCID: PMC6350335 DOI: 10.1186/s12902-019-0346-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 01/17/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Renal hyperparathyroidism is a common complication of chronic kidney disease (CKD) or end-stage renal disease (ESRD) characterized by elevated parathyroid hormone levels secondary to derangements in the homeostasis of calcium, phosphate, and vitamin D. Rapid correction of severe and prolonged hyperparathyroidism by surgical parathyroidectomy in long-term hemodialysis patients occasionally causes hungry bone syndrome. These patients then exhibit severe and long-lasting secondary or tertiary hyperparathyroidism with high bone turnover. CASE PRESENTATION We report a case of recurrent tertiary hyperparathyroidism after total parathyroidectomy due to supernumerary parathyroid gland in a patient with long-term hemodialysis. Supplementation with intravenous calcium, oral calcium, and vitamin D immediately after patient surgery helps to prevent and treat hungry bone syndrome. CONCLUSIONS We should prompt a search for the supernumerary parathyroid glands in ESRD patients, who have recurrent or persistent hyperparathyroidism after total parathyroidectomy. ESRD patients are more likely to develop hungry bone syndrome after parathyroidectomy. Prevention and treatment of hungry bone syndrome may be required after ectopic parathyroidectomy in clinical practice.
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Affiliation(s)
- Tsai-Sung Tai
- Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539 Chung Hsiao Rd, Chiayi City, 600 Taiwan
| | - Yueh-Han Hsu
- Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539 Chung Hsiao Rd, Chiayi City, 600 Taiwan
- Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539 Chung Hsiao Rd, Chiayi, 600 Taiwan
- Department of Nursing, Min-Hwei Junior College of Health Care Management, 1116, Sec. 2, Zhongshan E. Rd, Liuying Dist, Tainan City, 736 Taiwan
| | - Jia Ming Chang
- Division of Thoracic Surgery, Department of Surgery, Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539 Chung Hsiao Rd, Chiayi, 600 Taiwan
| | - Chien-Chin Chen
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539 Chung Hsiao Rd, Chiayi, 600 Taiwan
- Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, 60, Sec. 1, Erren Rd, Rende Dist, Tainan, 717 Taiwan
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Parathyroidectomy in patients with chronic kidney disease: Impacts of different techniques on the biochemical and clinical evolution of secondary hyperparathyroidism. Surgery 2018; 163:381-387. [DOI: 10.1016/j.surg.2017.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/29/2017] [Accepted: 09/13/2017] [Indexed: 11/19/2022]
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Risk-factors for nodular hyperplasia of parathyroid glands in sHPT patients. PLoS One 2017; 12:e0186093. [PMID: 29040300 PMCID: PMC5645091 DOI: 10.1371/journal.pone.0186093] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 09/25/2017] [Indexed: 12/27/2022] Open
Abstract
Introduction Nodular hyperplasia of parathyroid glands (PG) is the most probable cause of medical treatment failure in secondary hyperparathyroidism (sHPT). This prospective cohort study is located at the interface of medical and surgical consideration of sHPT treatment options and identifies risk-factors for nodular hyperplasia of PG. Material and methods One-hundred-eight resected PG of 27 patients with a broad spectrum of sHPT severity were classified according to the degree of hyperplasia by histopathology. Twenty routinely gathered parameters from medical history, ultrasound findings of PG and laboratory results were analyzed for their influence on nodular hyperplasia of PG by risk-adjusted multivariable binary regression. A prognostic model for non-invasive assessment of PG was developed and used to weight the individual impact of identified risk-factors on the probability of nodular hyperplasia of single PG. Results Independent risk-factors for nodular hyperplasia of single PG were duration of dialysis in years, PG volume in mm3 determined by ultrasound and serum level of parathyroid hormone in pg/mL. Multivariable analyses computed a model with an Area Under the Receiver Operative Curve of 0.857 (95%-CI:0.773–0.941) when predicting nodular hyperplasia of PG. Theoretical assessment of risk-factor interaction revealed that the duration of dialysis had the strongest influence on the probability of nodular hyperplasia of single PG. Conclusions The three identified risk-factors (duration of dialysis, PG volume determined by ultrasound and serum level of parathyroid hormone) can be easily gathered in daily routine and could be used to non-invasively assess the probability of nodular hyperplasia of PG. This assessment would benefit from periodically collected data sets of PG changes during the course of sHPT, so that the choice of medical or surgical sHPT treatment could be adjusted more to the naturally changing type of histological PG lesion on an individually adopted basis in the future.
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Ferrandino R, Roof S, Ma Y, Chan L, Poojary P, Saha A, Chauhan K, Coca SG, Nadkarni GN, Teng MS. Unplanned 30-Day Readmissions after Parathyroidectomy in Patients with Chronic Kidney Disease: A Nationwide Analysis. Otolaryngol Head Neck Surg 2017; 157:955-965. [PMID: 28949797 DOI: 10.1177/0194599817721154] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective To examine rates of readmission after parathyroidectomy in patients with chronic kidney disease and determine primary etiologies, timing, and risk factors for these unplanned readmissions. Study Design Retrospective cohort study. Setting Nationwide Readmissions Database. Subjects and Methods The Nationwide Readmissions Database was queried for parathyroidectomy procedures performed in patients with chronic kidney disease between January 2013 and November 2013. Patient-, admission-, and hospital-level characteristics were compared for patients with and without at least 1 unplanned 30-day readmission. Outcomes of interest included rates, etiology, and timing of readmission. Multivariate logistic regression was used to identify predictors of 30-day readmission. Results There were 2756 parathyroidectomies performed in patients with chronic kidney disease with an unplanned readmission rate of 17.2%. Hypocalcemia/hungry bone syndrome accounted for 40% of readmissions. Readmissions occurred uniformly throughout the 30 days after discharge, but readmissions for hypocalcemia/hungry bone syndrome peaked in the first 10 days and decreased over time. Weight loss/malnutrition at time of parathyroidectomy and length of stay of 5 to 6 days conferred increased risk of readmission with adjusted odds ratios (aOR) of 3.31 (95% confidence interval [CI], 1.55-7.05; P = .002) and 1.87 (95% CI, 1.10-3.19; P = .02), respectively. Relative to primary hyperparathyroidism, parathyroidectomies performed for secondary hyperparathyroidism (aOR, 2.53; 95% CI, 1.07-5.95; P = .03) were associated with higher risk of readmission. Conclusion Postparathyroidectomy readmission rates for patients with chronic kidney disease are nearly 5 times that of the general population. Careful consideration of postoperative care and electrolyte management is crucial to minimize preventable readmissions in this vulnerable population.
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Affiliation(s)
- Rocco Ferrandino
- 1 Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Scott Roof
- 2 Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yue Ma
- 2 Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Lili Chan
- 3 Department of Nephrology, Icahn School of Medicine at Mount Sinai Hospital, New York, New York, USA
| | - Priti Poojary
- 3 Department of Nephrology, Icahn School of Medicine at Mount Sinai Hospital, New York, New York, USA
| | - Aparna Saha
- 3 Department of Nephrology, Icahn School of Medicine at Mount Sinai Hospital, New York, New York, USA
| | - Kinsuk Chauhan
- 3 Department of Nephrology, Icahn School of Medicine at Mount Sinai Hospital, New York, New York, USA
| | - Steven G Coca
- 3 Department of Nephrology, Icahn School of Medicine at Mount Sinai Hospital, New York, New York, USA
| | - Girish N Nadkarni
- 3 Department of Nephrology, Icahn School of Medicine at Mount Sinai Hospital, New York, New York, USA
| | - Marita S Teng
- 2 Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Okada M, Futamura K, Hiramitsu T, Tsujita M, Goto N, Narumi S, Watarai Y, Ichimori T, Tominaga Y. Hypercalcemia resistant to cinacalcet caused by a mediastinal hyperplastic parathyroid gland in a renal transplant patient. Eur Surg 2017. [DOI: 10.1007/s10353-017-0484-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tominaga Y, Kakuta T, Yasunaga C, Nakamura M, Kadokura Y, Tahara H. Evaluation of Parathyroidectomy for Secondary and Tertiary Hyperparathyroidism by the Parathyroid Surgeons' Society of Japan. Ther Apher Dial 2016; 20:6-11. [PMID: 26879490 DOI: 10.1111/1744-9987.12352] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/21/2015] [Accepted: 06/15/2015] [Indexed: 11/26/2022]
Abstract
Secondary hyperparathyroidism (SHPT) remains a serious complication in patients with chronic kidney disease, and some patients require parathyroidectomy. The Parathyroid Surgeons' Society of Japan (PSSJ) evaluated parathyroidectomy for SHPT and tertiary hyperparathyroidism (THPT) in Japan. The annual numbers of parathyroidectomies between 2004 and 2013 were evaluated using questionnaires. Since 2010, the PSSJ has registered the patients. In total, 826 patients from 42 institutions were registered. The annual number of parathyroidectomies for SHPT and THPT in Japan increased from 2004 to 2007 and then decreased markedly after 2007, with 296 operations performed in 2013. The number of women and men was almost equal (397/427). Median (interquartile range) age of these patients was 59.0 (24-87) years, the duration of hemodialysis before parathyroidectomy was 10.83 (0.0-38.7) years, and diabetic nephropathy was 87/826 (10.5%). Of these patients 59.6% were treated with cinacalcet at undergoing parathyroidectomy. In 75.3% of patients, a total parathyroidectomy with forearm autograft was performed. In 77.7% of patients, four or more parathyroid glands were removed during the initial operation. The incidences of husky voice and wound hemorrhage were 2.9% and 1.1%, respectively. The number of parathyroidectomies for SHPT in Japan decreased markedly after the introduction of cinacalcet. Based on the evaluation of registered patients, parathyroidectomies have been successfully performed at the institutions participating in the PSSJ.
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Affiliation(s)
- Yoshihiro Tominaga
- Department of Transplant and Endocrine Surgery, Nagoya 2nd Red Cross Hospital, Nagoya, Japan
| | - Takatoshi Kakuta
- Division of Nephrology, Endocrinology and Metabolism, Tokai University School of Medicine, Hachioji, Japan
| | | | - Michio Nakamura
- Division of Transplant Surgery, Tokai University School of Medicine, Isehara, Japan
| | - Yoshiyuki Kadokura
- Department of Otolaryngology, Showa University Yokohama Northern Hospital, Yokohama, Japan
| | - Hideki Tahara
- Metabolism, Endocrinology, Molecular Medicine and Nephrology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Abstract
BACKGROUND Persistent hyperparathyroidism (HPT) after renal transplantation (RTx), termed tertiary HPT (THPT), is not uncommon. However, risk factors and appropriate operative procedures for THPT are poorly understood. METHODS A retrospective study of patients who underwent RTx without pre-transplant parathyroidectomy (PTx) was performed at our hospital between January 2001 and March 2011. Risk factors for the development of THPT were investigated by comparing THPT and non-THPT groups. We retrospectively analyzed patients with THPT who underwent total PTx with forearm autograft. Pre- and postoperative (1 year after PTx) laboratory results were analyzed for PTx efficacy. RESULTS Data for 520 patients were analyzed. On multivariate analysis, long dialysis duration (p = 0.009, hazard ratio (HR) 1.01), large maximum parathyroid gland size before RTx (p = 0.003, HR 1.23), pre-RTx high intact parathyroid hormone (iPTH) (p = 0.041, HR 1.01), post-RTx (<2 weeks) high calcium (Ca) (p < 0.001, HR 25.04), and post-RTx high alkaline phosphatase (ALP) (p = 0.027, HR 0.99) were identified as risk factors for THPT. Patients who underwent PTx showed significant improvement compared with baseline for serum Ca, phosphorus, iPTH, and ALP. Serum creatinine showed no significant difference. CONCLUSIONS Several risk factors for THPT development were identified. PTx for patients with THPT significantly improved serum Ca, iPTH, ALP, and phosphorous levels. There was no significant difference in renal function after PTx. Therefore, total PTx with forearm autograft may be an appropriate surgical approach for patients with THPT.
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Jeong S, Kim IW, Oh KH, Han N, Joo KW, Kim HJ, Oh JM. Pharmacogenetic analysis of cinacalcet response in secondary hyperparathyroidism patients. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:2211-25. [PMID: 27468225 PMCID: PMC4944925 DOI: 10.2147/dddt.s103370] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Secondary hyperparathyroidism (SHPT) is one of the major risk factors of morbidity and mortality in end-stage renal disease. Cinacalcet effectively controls SHPT without causing hypercalcemia and hyperphosphatemia. However, there is significant inter-individual response variance to cinacalcet treatment. Therefore, we aimed to evaluate the genetic effects related with parathyroid hormone regulation as factors for cinacalcet response variance. Methods Patients with a diagnosis of SHPT based on intact parathyroid hormone (iPTH) >300 pg/mL on dialysis were included in this study. They were over 18 years and have been treated by cinacalcet for more than 3 months. Responders and nonresponders were grouped by the serum iPTH changes. Twenty-four single nucleotide polymorphisms of CASR, VDR, FGFR1, KL, ALPL, RGS14, NR4A2, and PTHLH genes were selected for the pharmacogenetic analysis. Results After adjusting for age, sex, and calcium level, CASR rs1042636 (odds ratio [OR]: 0.066, P=0.027) and rs1802757 (OR: 10.532, P=0.042) were associated with cinacalcet response. The association of haplotypes of CASR rs1042636, rs10190, and rs1802757; GCC (OR: 0.355, P=0.015); and ATT (OR: 2.769, P=0.014) with cinacalcet response was also significant. Conclusion We obtained supporting information of the associations between cinacalcet response and CASR polymorphisms. CASR single nucleotide polymorphisms (SNPs) rs1802757, rs1042636, and haplotypes of rs1042636, rs10190, and rs1802757 were significantly associated with cinacalcet response variance.
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Affiliation(s)
- Sohyun Jeong
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University
| | - In-Wha Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University
| | - Kook-Hwan Oh
- Department of Internal Medicine, Division of Nephrology, Seoul National University Hospital, Seoul, Korea
| | - Nayoung Han
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University
| | - Kwon Wook Joo
- Department of Internal Medicine, Division of Nephrology, Seoul National University Hospital, Seoul, Korea
| | - Hyo Jin Kim
- Department of Internal Medicine, Division of Nephrology, Seoul National University Hospital, Seoul, Korea
| | - Jung Mi Oh
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University
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Parker VJ, Gilor C, Chew DJ. Feline hyperparathyroidism: pathophysiology, diagnosis and treatment of primary and secondary disease. J Feline Med Surg 2015; 17:427-39. [PMID: 25896242 PMCID: PMC10816244 DOI: 10.1177/1098612x15581134] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
PRACTICAL RELEVANCE Hyperparathyroidism exists in primary and secondary forms. Primary hyperparathyroidism has typically been considered a disease that uncommonly affects cats, but this condition is more prevalent than previous diagnoses would suggest. Secondary hyperparathyroidism may be caused by either nutritional influences (ie, nutritional secondary hyperparathyroidism) or chronic kidney disease (ie, renal secondary hyperparathyroidism). Tertiary hyperparathyroidism has yet to be documented in veterinary medicine, but it is possible that this condition occurs in some cats following longstanding renal secondary hyperparathyroidism. CLINICAL CHALLENGES Diagnosis of this group of calcium metabolic disorders presents a number of challenges for the clinician. For example, clinical signs can be non-specific and, especially in the case of primary hyperparathyroidism, there is often a low index of suspicion for the disease; careful sample handling is required for testing of parathyroid hormone (PTH) and ionized calcium levels; and there is currently no feline-specific assay for PTH, which has implications for test sensitivity and interpretation of results. AIMS This article briefly outlines PTH and calcium physiology by way of introduction to a review of PTH measurement and interpretation. Various forms of feline hyperparathyroidism are then described, encompassing diagnosis and treatment options.
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Affiliation(s)
- Valerie J Parker
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, 601 Vernon L Tharp Street, Columbus, OH 43210, USA
| | - Chen Gilor
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, 601 Vernon L Tharp Street, Columbus, OH 43210, USA
| | - Dennis J Chew
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, 601 Vernon L Tharp Street, Columbus, OH 43210, USA
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de Brito Galvao JF, Nagode LA, Schenck PA, Chew DJ. Calcitriol, calcidiol, parathyroid hormone, and fibroblast growth factor-23 interactions in chronic kidney disease. J Vet Emerg Crit Care (San Antonio) 2013; 23:134-62. [PMID: 23566108 PMCID: PMC3677418 DOI: 10.1111/vec.12036] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Accepted: 02/05/2013] [Indexed: 12/13/2022]
Abstract
Objective To review the inter-relationships between calcium, phosphorus, parathyroid hormone (PTH), parent and activated vitamin D metabolites (vitamin D, 25(OH)-vitamin D, 1,25(OH)2-vitamin D, 24,25(OH)2-vitamin D), and fibroblast growth factor-23 (FGF-23) during chronic kidney disease (CKD) in dogs and cats. Data Sources Human and veterinary literature. Human Data Synthesis Beneficial effects of calcitriol treatment during CKD have traditionally been attributed to regulation of PTH but new perspectives emphasize direct renoprotective actions independent of PTH and calcium. It is now apparent that calcitriol exerts an important effect on renal tubular reclamation of filtered 25(OH)-vitamin D, which may be important in maintaining adequate circulating 25(OH)-vitamin D. This in turn may be vital for important pleiotropic actions in peripheral tissues through autocrine/paracrine mechanisms that impact the health of those local tissues. Veterinary Data Synthesis Limited information is available reporting the benefit of calcitriol treatment in dogs and cats with CKD. Conclusions A survival benefit has been shown for dogs with CKD treated with calcitriol compared to placebo. The concentrations of circulating 25(OH)-vitamin D have recently been shown to be low in people and dogs with CKD and are related to survival in people with CKD. Combination therapy for people with CKD using both parental and activated vitamin D compounds is common in human nephrology and there is a developing emphasis using combination treatment with activated vitamin D and renin-angiotensin-aldosterone-system (RAAS) inhibitors.
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Tertiary hyperparathyroidism: choosing an appropriate treatment--an enigma. Transplantation 2012; 94:e64; author reply e64-5. [PMID: 23222739 DOI: 10.1097/tp.0b013e31826cc9c3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bone turnover in hyperparathyroidism. Wien Med Wochenschr 2012; 163:391-6. [DOI: 10.1007/s10354-012-0125-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 06/12/2012] [Indexed: 11/27/2022]
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[Increased bone mineral density in patients with tertiary hyperparathyroidism after total parathyroidectomy and autotransplantation of the parathyroid gland]. Cir Esp 2012; 90:382-7. [PMID: 22445112 DOI: 10.1016/j.ciresp.2012.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 01/08/2012] [Accepted: 01/12/2012] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Changes in bone metabolism and bone mineral density are observed in renal transplant patients with tertiary hyperparathyroidism. The objective of this work was to analyse the increase in bone mineral density, as well the laboratory results, after total parathyroidectomy and autotransplantation in renal transplant patients with tertiary hyperparathyroidism. MATERIAL AND METHODS A retrospective study was conducted in which the bone mineral density values at femoral and lumbar level were analysed, together with the serum levels of calcium, phosphorous, parathyroid hormone (PTH), and alkaline phosphatase in 13 renal transplant patients with tertiary hyperparathyroidism before and after total parathyroidectomy and autotransplantation of the parathyroid glands. RESULTS Parathyroidectomy is associated with an increase in bone mineral density at femoral and lumbar level, with an increase of 8.6 ± 6.7% at lumbar level, and 4 ± 16.1% at femoral level. The decrease in calcium after the parathyroidectomy was 2.8 mg/dL (95% CI; 1.9-4). The decrease in PTH was 172 pg/mL (95% CI; 98-354) and the decrease in alkaline phosphatase was 229 U/L (95% CI; 70-371). CONCLUSIONS Total parathyroidectomy and autotransplantation of the parathyroid glands in renal transplant patients with tertiary hyperparathyroidism increases the bone mineral density. Furthermore, the calcium, PTH and alkaline phosphatase returned to normal in the long-term.
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