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Kiranmayi M, Chirasani VR, Allu PKR, Subramanian L, Martelli EE, Sahu BS, Vishnuprabu D, Kumaragurubaran R, Sharma S, Bodhini D, Dixit M, Munirajan AK, Khullar M, Radha V, Mohan V, Mullasari AS, Naga Prasad SV, Senapati S, Mahapatra NR. Catestatin Gly364Ser Variant Alters Systemic Blood Pressure and the Risk for Hypertension in Human Populations via Endothelial Nitric Oxide Pathway. Hypertension 2016; 68:334-47. [PMID: 27324226 DOI: 10.1161/hypertensionaha.116.06568] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 05/17/2016] [Indexed: 12/13/2022]
Abstract
Catestatin (CST), an endogenous antihypertensive/antiadrenergic peptide, is a novel regulator of cardiovascular physiology. Here, we report case-control studies in 2 geographically/ethnically distinct Indian populations (n≈4000) that showed association of the naturally-occurring human CST-Gly364Ser variant with increased risk for hypertension (age-adjusted odds ratios: 1.483; P=0.009 and 2.951; P=0.005). Consistently, 364Ser allele carriers displayed elevated systolic (up to ≈8 mm Hg; P=0.004) and diastolic (up to ≈6 mm Hg; P=0.001) blood pressure. The variant allele was also found to be in linkage disequilibrium with other functional single-nucleotide polymorphisms in the CHGA promoter and nearby coding region. Functional characterization of the Gly364Ser variant was performed using cellular/molecular biological experiments (viz peptide-receptor binding assays, nitric oxide [NO], phosphorylated extracellular regulated kinase, and phosphorylated endothelial NO synthase estimations) and computational approaches (molecular dynamics simulations for structural analysis of wild-type [CST-WT] and variant [CST-364Ser] peptides and docking of peptide/ligand with β-adrenergic receptors [ADRB1/2]). CST-WT and CST-364Ser peptides differed profoundly in their secondary structures and showed differential interactions with ADRB2; although CST-WT displaced the ligand bound to ADRB2, CST-364Ser failed to do the same. Furthermore, CST-WT significantly inhibited ADRB2-stimulated extracellular regulated kinase activation, suggesting an antagonistic role towards ADRB2 unlike CST-364Ser. Consequently, CST-WT was more potent in NO production in human umbilical vein endothelial cells as compared with CST-364Ser. This NO-producing ability of CST-WT was abrogated by ADRB2 antagonist ICI 118551. In conclusion, CST-364Ser allele enhanced the risk for hypertension in human populations, possibly via diminished endothelial NO production because of altered interactions of CST-364Ser peptide with ADRB2 as compared with CST-WT.
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Affiliation(s)
- Malapaka Kiranmayi
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Venkat R Chirasani
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Prasanna K R Allu
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Lakshmi Subramanian
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Elizabeth E Martelli
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Bhavani S Sahu
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Durairajpandian Vishnuprabu
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Rathnakumar Kumaragurubaran
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Saurabh Sharma
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Dhanasekaran Bodhini
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Madhulika Dixit
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Arasambattu K Munirajan
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Madhu Khullar
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Venkatesan Radha
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Viswanathan Mohan
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Ajit S Mullasari
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Sathyamangla V Naga Prasad
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Sanjib Senapati
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.)
| | - Nitish R Mahapatra
- From the Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India (M.Kiranmayi, V.R.C., P.K.R.A., L.S., B.S.S., R.K., M.D., S.Senapati, N.R.M.); Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, OH (E.E.M., S.V.N.P.); Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamil Nadu, India (D.V., A.K.M.); Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India (S.Sharma, M.Khullar); Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, Tamil Nadu, India (D.B., V.R., V.M.); Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India (A.S.M.); Department of Medicine, University of California San Francisco (P.K.R.A.); and Department of Clinical Biochemistry, University of Cambridge, Cambridge, United Kingdom (B.S.S.).
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