Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Mathew John is active.

Publication


Featured researches published by Mathew John.


Indian Journal of Endocrinology and Metabolism | 2013

Prevalence of hypothyroidism in adults: An epidemiological study in eight cities of India

Ambika Gopalakrishnan Unnikrishnan; Sanjay Kalra; Rakesh Sahay; Ganapathi Bantwal; Mathew John; Neeraj Tewari

Background: Hypothyroidism is believed to be a common health issue in India, as it is worldwide. However, there is a paucity of data on the prevalence of hypothyroidism in adult population of India. Materials and Methods: A cross-sectional, multi-centre, epidemiological study was conducted in eight major cities (Bangalore, Chennai, Delhi, Goa, Mumbai, Hyderabad, Ahmedabad and Kolkata) of India to study the prevalence of hypothyroidism among adult population. Thyroid abnormalities were diagnosed on the basis of laboratory results (serum FT3, FT4 and Thyroid Stimulating Hormone [TSH]). Patients with history of hypothyroidism and receiving levothyroxine therapy or those with serum free T4 <0.89 ng/dl and TSH >5.50 μU/ml, were categorized as hypothyroid. The prevalence of self reported and undetected hypothyroidism, and anti-thyroid peroxidase (anti-TPO) antibody positivity was assessed. Results: A total of 5376 adult male or non-pregnant female participants ≥18 years of age were enrolled, of which 5360 (mean age: 46 ± 14.68 years; 53.70% females) were evaluated. The overall prevalence of hypothyroidism was 10.95% (n = 587, 95% CI, 10.11-11.78) of which 7.48% (n = 401) patients self reported the condition, whereas 3.47% (n = 186) were previously undetected. Inland cities showed a higher prevalence of hypothyroidism as compared to coastal cities. A significantly higher (P < 0.05) proportion of females vs. males (15.86% vs 5.02%) and older vs. younger (13.11% vs 7.53%), adults were diagnosed with hypothyroidism. Additionally, 8.02% (n = 430) patients were diagnosed to have subclinical hypothyroidism (normal serum free T4 and TSH >5.50 μIU/ml). Anti – TPO antibodies suggesting autoimmunity were detected in 21.85% (n = 1171) patients. Conclusion: The prevalence of hypothyroidism was high, affecting approximately one in 10 adults in the study population. Female gender and older age were found to have significant association with hypothyroidism. Subclinical hypothyroidism and anti-TPO antibody positivity were the other common observations.


Indian Journal of Endocrinology and Metabolism | 2013

National recommendations: Psychosocial management of diabetes in India

Sanjay Kalra; Gr Sridhar; Yatan Pal Singh Balhara; Rakesh Sahay; Ganapathy Bantwal; Manash P Baruah; Mathew John; Ambika Gopalkrishnan Unnikrishnan; K Madhu; Komal Verma; Aswathy Sreedevi; Rishi Shukla; Km Prasanna Kumar

Although several evidence-based guidelines for managing diabetes are available, few, if any, focus on the psychosocial aspects of this challenging condition. It is increasingly evident that psychosocial treatment is integral to a holistic approach of managing diabetes; it forms the key to realizing appropriate biomedical outcomes. Dearth of attention is as much due to lack of awareness as due to lack of guidelines. This lacuna results in diversity among the standards of clinical practice, which, in India, is also due to the size and complexity of psychosocial care itself. This article aims to highlight evidence- and experience-based Indian guidelines for the psychosocial management of diabetes. A systemic literature was conducted for peer-reviewed studies and publications covering psychosocial aspects in diabetes. Recommendations are classified into three domains: General, psychological and social, and graded by the weight they should have in clinical practice and by the degree of support from the literature. Ninety-four recommendations of varying strength are made to help professionals identify the psychosocial interventions needed to support patients and their families and explore their role in devising support strategies. They also aid in developing core skills needed for effective diabetes management. These recommendations provide practical guidelines to fulfill unmet needs in diabetes management, and help achieve a qualitative improvement in the way physicians manage patients. The guidelines, while maintaining an India-specific character, have global relevance, which is bound to grow as the diabetes pandemic throws up new challenges.


Indian Journal of Endocrinology and Metabolism | 2016

Sodium-glucose cotransporter 2 inhibitors with insulin in type 2 diabetes: Clinical perspectives

Mathew John; Deepa Gopinath; Rejitha Jagesh

The treatment of type 2 diabetes is a challenging problem. Most subjects with type 2 diabetes have progression of beta cell failure necessitating the addition of multiple antidiabetic agents and eventually use of insulin. Intensification of insulin leads to weight gain and increased risk of hypoglycemia. Sodium-glucose cotransporter 2 (SGLT2) inhibitors are a class of antihyperglycemic agents which act by blocking the SGLT2 in the proximal tubule of the kidney. They have potential benefits in terms of weight loss and reduction of blood pressure in addition to improvements in glycemic control. Further, one of the SGLT2 inhibitors, empagliflozin has proven benefits in reducing adverse cardiovascular (CV) outcomes in a CV outcome trial. Adding SGLT2 inhibitors to insulin in subjects with type 2 diabetes produced favorable effects on glycemic control without the weight gain and hypoglycemic risks associated with insulin therapy. The general risks of increased genital mycotic infections, urinary tract infections, volume, and osmosis-related adverse effects in these subjects were similar to the pooled data of individual SGLT2 inhibitors. There are subsets of subjects with type 2 diabetes who may have insulin deficiency, beta cell autoimmunity, or is prone to diabetic ketoacidosis. In these subjects, SGLT2 inhibitors should be used with caution to prevent the rare risks of ketoacidosis.


Diabetes Therapy | 2017

Indian Injection Technique Study: Injecting Complications, Education, and the Health Care Professional

Sanjay Kalra; Ambrish Mithal; Rakesh Sahay; Mathew John; Ag Unnikrishnan; Banshi Saboo; Sujoy Ghosh; Debmalya Sanyal; Laurence J. Hirsch; Vandita Gupta; Kenneth W. Strauss

IntroductionUsing the Indian and rest of world (ROW) injection technique questionnaire (ITQ) data, we address key insulin injection complications.MethodsIn 2015 we conducted an ITQ survey throughout India involving 1011 patients. Indian values were compared with those from 41 other countries participating in the ITQ, known here as ROW.ResultsMore than a quarter of Indian insulin users described lesions consistent with lipohypertrophy (LH) at their injection sites and approximately 1 in 5 were found to have LH by the examining nurse (using visual inspection and palpation). Just over half of Indian injectors report having pain on injection. Of these, 4 out of 5 report having painful injections only several times a month or year (i.e., not with every injection). Doctors and diabetes educators in India (as opposed to nurses) have a larger role in teaching patients how to inject than they do in ROW. Despite this specialized approach, a very high percentage of patients report that they have not been trained (at least cannot remember being trained) in a wide range of essential injection topics. Only about 30% of Indian injectors get their sites checked at least annually, with nearly a third only having sites checked when they specifically complained and nearly 4 out of 10 never having had their sites checked.ConclusionIndian HCPs can clearly do a better job covering all the vital topics essential to proper injection habits.


Indian Journal of Endocrinology and Metabolism | 2014

Treat-to-target trials in diabetes.

Subhash Wangnoo; Bipin Sethi; Rakesh Sahay; Mathew John; Samit Ghosal; S.K. Sharma

Treat-to-target is a therapeutic concept that considers well defined and specific physiologic targets as aims in controlling the pathophysiology of the disease. It has been widely used in diseases that pathophysiology includes, chronic metabolic and physiological disturbances, namely rheumatic conditions, vascular medicine and diabetes. In diabetes, the availability of “gold-standard” quantitative measures like fasting plasma glucose and glycated hemoglobin make the application of treat-to-target trials especially pertinent. Treatment modalities which have used single therapeutic agents or combinations or in combination with a variety of titration algorithms and implementation protocols have broadened our understanding of diabetes management with specific reference to insulin initiation and maintenance. Treat-to-target trials have been used to investigate a wide variety of questions including efficacy, safety, effect of treatment on comorbidities and patient satisfaction, ideal mechanisms to implement insulin initiation etc. A more generalized acceptance and implementation of treat-to-target trials may finally revolutionize diabetes management by combining aspects of individual care with standard treatment protocols.


International Journal of Chemical Reactor Engineering | 2016

Hydroisomerization of Biomass Derived n-Hexadecane Towards Diesel Pool: Effect of Selective Removal External Surface Sites from Pt/ZSM-22

Abhijeet H. Thaker; Mathew John; Kishore Kumar; Mahesh W. Kasture; Snehalkumar Parmar; Bharat L. Newalkar; Parimal A. Parikh

Abstract Influence of dealumination of zeolite ZSM-22 (Si/Al ratio of 45) by treating it with oxalic acid on its catalytic performance in n-hexadecane hydroisomerization reaction was studied. This reaction is an attempt in the direction of green and sustainable source of diesel via improving the cold-flow properties of deoxygenated vegetable oils. Pt (0.5 wt%) on ZSM-22 treated with 1 M oxalic acid afforded highest yields of the mono-branched paraffins. This improved is attributed to selective removal of active sites on external surface of zeolite crystals (responsible for undesired cracking reactions) using the bulkier dealuminating agent, oxalic acid. Thus, pore-mouth key-lock mechanism was brought to play the role to cause high selectivity to mono-branched isomers. Preferential external site deactivation was inferred from mesitylene cracking results. Effects of operating parameters such as temperature, and space velocity on product distribution also were studied. Also, kinetics of the reactions involved too has been in brief reported.


Indian heart journal | 2016

Cardiovascular outcome trials for anti-diabetes medication: A holy grail of drug development?

Mathew John; Ambika Gopalakrishnan Unnikrishnan; Sanjay Kalra; Tiny Nair

Since the time questions arose on cardiovascular safety of Rosiglitazone, FDA has suggested guidelines on conduct of studies on anti-diabetic drugs so as to prove that the cardiovascular risk is acceptable. Based on the cardiovascular risks of pre-approval clinical trials, guidelines have been made to conduct cardiovascular safety outcome trials (CVSOTs) prior to the drug approval or after the drug has been approved. Unlike the trials comparing the efficacy of antidiabetic agents, the CVSOTs examine the cardiovascular safety of a drug in comparison to standard of care. These trials are expensive aspects of drug development and are associated with various technical and operational challenges. More cost effective models of assessing cardiovascular safety like use of biomarkers, electronic medical records, pragmatic and factorial designs can be adopted. This article critically looks at the antidiabetic drug approval from a cardiovascular perspective by asking a few questions and arriving at answers.


Indian Journal of Endocrinology and Metabolism | 2015

Anti-thyroid drugs in pediatric Graves' disease

Mathew John; Rajasree Sundrarajan; S Sridhar Gomadam

Graves’ disease is the most common cause of hyperthyroidism in children. Most children and adolescents are treated with anti-thyroid drugs as the initial modality. Studies have used Methimazole, Carbimazole and Propylthiouracil (PTU) either as titration regimes or as block and replacement regimes. The various studies of anti-thyroid drug (ATD) treatment of Graves’ disease in pediatric patients differ in terms of the regimes, remission rate, duration of therapy for adequate remission, follow up and adverse effects of ATD. Various studies show that lower thyroid hormone levels, prolonged duration of treatment, lower levels of TSH receptor antibodies, smaller goiter and increased age of child predicted higher chance of remission after ATD. A variable number of patients experience minor and major adverse effects limiting initial and long term treatment with ATD. The adverse effects of various ATD seem to more in children compared to that of adults. In view of liver injury including hepatocellular failure need of liver transplantation associated with PTU, the use has been restricted in children. The rate of persistent remission with ATD following discontinuation is about 30%. Radioactive iodine therapy is gaining more acceptance in older children with Gravess disease in view of the limitations of ATD. For individual patients, risk-benefit ratio of ATD should be weighed against benefits of radioactive iodine therapy and patient preferences.


Journal of Social Health and Diabetes | 2014

The Indian family fights diabetes: Results from the second Diabetes Attitudes, Wishes and Needs (DAWN2) study

Sanjay Kalra; Mathew John; Manash P Baruah

The recently conducted DAWN2 study assessed the views and perceptions of various stakeholders, in 17 countries, on issue related to diabetes care. In short, DAWN2 is a multinational, interdisciplinary and multi-stakeholder study conducted in the following 17 countries from four continents: Algeria, Canada, China, Denmark, France, Germany, India, Italy, Japan, Mexico, the Netherlands, Poland, Russian Federation, Spain, Turkey, the UK and the USA. These stakeholders included not only people with diabetes (PWD) and health care professionals (HCPs) but also family members of PWD (FM). The DAWN2 study reported that FM experience significant impairment in psychological well-being, distress related to diabetes and negative impact on their own life. A large number of FM feel frustrated as they do not know how best to help the PWD in their families and are worried about the risk of hypoglycemia in PWD. In spite of all these issues, the majority of FM are willing to increase their involvement in diabetes care and in helping PWD deal with their emotions related to diabetes.


International Journal of Endocrinology | 2016

Challenges in the Diagnosis and Management of Growth Hormone Deficiency in India

Mathew John; Ekaterina Koledova; Kanakatte Mylariah Prasanna Kumar; Harshal Chaudhari

In clinical practice, every year approximately 150,000 children are referred with short stature (SS) based on a cut-off of fifth percentile. The most important endocrine and treatable cause of SS is growth hormone deficiency (GHD). The lack of reliable data on the prevalence of GHD in India limits estimation of the magnitude of this problem. The diagnosis and treatment of GHD are hurdled with various challenges, restricting the availability of growth hormone (GH) therapy to only a very limited segment of the children in India. This review will firstly summarize the gaps and challenges in diagnosis and treatment of GHD based on literature analysis. Subsequently, it presents suggestions from the members at advisory board meetings to overcome these challenges. The advisory board suggested that early initiation of the therapy could better the chances of achieving final adult height within the normal range for the population. Education and awareness about growth disorders among parents, regular training for physicians, and more emphasis on using the Indian growth charts for growth monitoring would help improve the diagnosis and treatment of children with GHD. Availability of an easy-to-use therapy delivery system could also be beneficial in improving adherence and achieving satisfactory outcomes.

Collaboration


Dive into the Mathew John's collaboration.

Top Co-Authors

Avatar

Rakesh Sahay

Osmania Medical College

View shared research outputs
Top Co-Authors

Avatar

Kamal K. Pant

Indian Institute of Technology Delhi

View shared research outputs
Top Co-Authors

Avatar

Snehalkumar Parmar

Indian Institute of Technology Delhi

View shared research outputs
Top Co-Authors

Avatar

Ambika Gopalakrishnan Unnikrishnan

Amrita Institute of Medical Sciences and Research Centre

View shared research outputs
Top Co-Authors

Avatar

Ganapathy Bantwal

St. John's Medical College

View shared research outputs
Top Co-Authors

Avatar

K. G. Ayappa

Indian Institute of Science

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Pradeepta K. Sahoo

Indian Institute of Science

View shared research outputs
Top Co-Authors

Avatar

Ganapathi Bantwal

St. John's Medical College

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge