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Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

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Dr Bhanu K Bhakhri

"The Journal of Clinical and Diagnostic Research (JCDR) has been in operation since almost a decade. It has contributed a huge number of peer reviewed articles, across a spectrum of medical disciplines, to the medical literature.
Its wide based indexing and open access publications attracts many authors as well as readers
For authors, the manuscripts can be uploaded online through an easily navigable portal, on other hand, reviewers appreciate the systematic handling of all manuscripts. The way JCDR has emerged as an effective medium for publishing wide array of observations in Indian context, I wish the editorial team success in their endeavour"



Dr Bhanu K Bhakhri
Faculty, Pediatric Medicine
Super Speciality Paediatric Hospital and Post Graduate Teaching Institute, Noida
On Sep 2018




Dr Mohan Z Mani

"Thank you very much for having published my article in record time.I would like to compliment you and your entire staff for your promptness, courtesy, and willingness to be customer friendly, which is quite unusual.I was given your reference by a colleague in pathology,and was able to directly phone your editorial office for clarifications.I would particularly like to thank the publication managers and the Assistant Editor who were following up my article. I would also like to thank you for adjusting the money I paid initially into payment for my modified article,and refunding the balance.
I wish all success to your journal and look forward to sending you any suitable similar article in future"



Dr Mohan Z Mani,
Professor & Head,
Department of Dematolgy,
Believers Church Medical College,
Thiruvalla, Kerala
On Sep 2018




Prof. Somashekhar Nimbalkar

"Over the last few years, we have published our research regularly in Journal of Clinical and Diagnostic Research. Having published in more than 20 high impact journals over the last five years including several high impact ones and reviewing articles for even more journals across my fields of interest, we value our published work in JCDR for their high standards in publishing scientific articles. The ease of submission, the rapid reviews in under a month, the high quality of their reviewers and keen attention to the final process of proofs and publication, ensure that there are no mistakes in the final article. We have been asked clarifications on several occasions and have been happy to provide them and it exemplifies the commitment to quality of the team at JCDR."



Prof. Somashekhar Nimbalkar
Head, Department of Pediatrics, Pramukhswami Medical College, Karamsad
Chairman, Research Group, Charutar Arogya Mandal, Karamsad
National Joint Coordinator - Advanced IAP NNF NRP Program
Ex-Member, Governing Body, National Neonatology Forum, New Delhi
Ex-President - National Neonatology Forum Gujarat State Chapter
Department of Pediatrics, Pramukhswami Medical College, Karamsad, Anand, Gujarat.
On Sep 2018




Dr. Kalyani R

"Journal of Clinical and Diagnostic Research is at present a well-known Indian originated scientific journal which started with a humble beginning. I have been associated with this journal since many years. I appreciate the Editor, Dr. Hemant Jain, for his constant effort in bringing up this journal to the present status right from the scratch. The journal is multidisciplinary. It encourages in publishing the scientific articles from postgraduates and also the beginners who start their career. At the same time the journal also caters for the high quality articles from specialty and super-specialty researchers. Hence it provides a platform for the scientist and researchers to publish. The other aspect of it is, the readers get the information regarding the most recent developments in science which can be used for teaching, research, treating patients and to some extent take preventive measures against certain diseases. The journal is contributing immensely to the society at national and international level."



Dr Kalyani R
Professor and Head
Department of Pathology
Sri Devaraj Urs Medical College
Sri Devaraj Urs Academy of Higher Education and Research , Kolar, Karnataka
On Sep 2018




Dr. Saumya Navit

"As a peer-reviewed journal, the Journal of Clinical and Diagnostic Research provides an opportunity to researchers, scientists and budding professionals to explore the developments in the field of medicine and dentistry and their varied specialities, thus extending our view on biological diversities of living species in relation to medicine.
‘Knowledge is treasure of a wise man.’ The free access of this journal provides an immense scope of learning for the both the old and the young in field of medicine and dentistry as well. The multidisciplinary nature of the journal makes it a better platform to absorb all that is being researched and developed. The publication process is systematic and professional. Online submission, publication and peer reviewing makes it a user-friendly journal.
As an experienced dentist and an academician, I proudly recommend this journal to the dental fraternity as a good quality open access platform for rapid communication of their cutting-edge research progress and discovery.
I wish JCDR a great success and I hope that journal will soar higher with the passing time."



Dr Saumya Navit
Professor and Head
Department of Pediatric Dentistry
Saraswati Dental College
Lucknow
On Sep 2018




Dr. Arunava Biswas

"My sincere attachment with JCDR as an author as well as reviewer is a learning experience . Their systematic approach in publication of article in various categories is really praiseworthy.
Their prompt and timely response to review's query and the manner in which they have set the reviewing process helps in extracting the best possible scientific writings for publication.
It's a honour and pride to be a part of the JCDR team. My very best wishes to JCDR and hope it will sparkle up above the sky as a high indexed journal in near future."



Dr. Arunava Biswas
MD, DM (Clinical Pharmacology)
Assistant Professor
Department of Pharmacology
Calcutta National Medical College & Hospital , Kolkata




Dr. C.S. Ramesh Babu
" Journal of Clinical and Diagnostic Research (JCDR) is a multi-specialty medical and dental journal publishing high quality research articles in almost all branches of medicine. The quality of printing of figures and tables is excellent and comparable to any International journal. An added advantage is nominal publication charges and monthly issue of the journal and more chances of an article being accepted for publication. Moreover being a multi-specialty journal an article concerning a particular specialty has a wider reach of readers of other related specialties also. As an author and reviewer for several years I find this Journal most suitable and highly recommend this Journal."
Best regards,
C.S. Ramesh Babu,
Associate Professor of Anatomy,
Muzaffarnagar Medical College,
Muzaffarnagar.
On Aug 2018




Dr. Arundhathi. S
"Journal of Clinical and Diagnostic Research (JCDR) is a reputed peer reviewed journal and is constantly involved in publishing high quality research articles related to medicine. Its been a great pleasure to be associated with this esteemed journal as a reviewer and as an author for a couple of years. The editorial board consists of many dedicated and reputed experts as its members and they are doing an appreciable work in guiding budding researchers. JCDR is doing a commendable job in scientific research by promoting excellent quality research & review articles and case reports & series. The reviewers provide appropriate suggestions that improve the quality of articles. I strongly recommend my fraternity to encourage JCDR by contributing their valuable research work in this widely accepted, user friendly journal. I hope my collaboration with JCDR will continue for a long time".



Dr. Arundhathi. S
MBBS, MD (Pathology),
Sanjay Gandhi institute of trauma and orthopedics,
Bengaluru.
On Aug 2018




Dr. Mamta Gupta,
"It gives me great pleasure to be associated with JCDR, since last 2-3 years. Since then I have authored, co-authored and reviewed about 25 articles in JCDR. I thank JCDR for giving me an opportunity to improve my own skills as an author and a reviewer.
It 's a multispecialty journal, publishing high quality articles. It gives a platform to the authors to publish their research work which can be available for everyone across the globe to read. The best thing about JCDR is that the full articles of all medical specialties are available as pdf/html for reading free of cost or without institutional subscription, which is not there for other journals. For those who have problem in writing manuscript or do statistical work, JCDR comes for their rescue.
The journal has a monthly publication and the articles are published quite fast. In time compared to other journals. The on-line first publication is also a great advantage and facility to review one's own articles before going to print. The response to any query and permission if required, is quite fast; this is quite commendable. I have a very good experience about seeking quick permission for quoting a photograph (Fig.) from a JCDR article for my chapter authored in an E book. I never thought it would be so easy. No hassles.
Reviewing articles is no less a pain staking process and requires in depth perception, knowledge about the topic for review. It requires time and concentration, yet I enjoy doing it. The JCDR website especially for the reviewers is quite user friendly. My suggestions for improving the journal is, more strict review process, so that only high quality articles are published. I find a a good number of articles in Obst. Gynae, hence, a new journal for this specialty titled JCDR-OG can be started. May be a bimonthly or quarterly publication to begin with. Only selected articles should find a place in it.
An yearly reward for the best article authored can also incentivize the authors. Though the process of finding the best article will be not be very easy. I do not know how reviewing process can be improved. If an article is being reviewed by two reviewers, then opinion of one can be communicated to the other or the final opinion of the editor can be communicated to the reviewer if requested for. This will help one’s reviewing skills.
My best wishes to Dr. Hemant Jain and all the editorial staff of JCDR for their untiring efforts to bring out this journal. I strongly recommend medical fraternity to publish their valuable research work in this esteemed journal, JCDR".



Dr. Mamta Gupta
Consultant
(Ex HOD Obs &Gynae, Hindu Rao Hospital and associated NDMC Medical College, Delhi)
Aug 2018




Dr. Rajendra Kumar Ghritlaharey

"I wish to thank Dr. Hemant Jain, Editor-in-Chief Journal of Clinical and Diagnostic Research (JCDR), for asking me to write up few words.
Writing is the representation of language in a textual medium i e; into the words and sentences on paper. Quality medical manuscript writing in particular, demands not only a high-quality research, but also requires accurate and concise communication of findings and conclusions, with adherence to particular journal guidelines. In medical field whether working in teaching, private, or in corporate institution, everyone wants to excel in his / her own field and get recognised by making manuscripts publication.


Authors are the souls of any journal, and deserve much respect. To publish a journal manuscripts are needed from authors. Authors have a great responsibility for producing facts of their work in terms of number and results truthfully and an individual honesty is expected from authors in this regards. Both ways its true "No authors-No manuscripts-No journals" and "No journals–No manuscripts–No authors". Reviewing a manuscript is also a very responsible and important task of any peer-reviewed journal and to be taken seriously. It needs knowledge on the subject, sincerity, honesty and determination. Although the process of reviewing a manuscript is a time consuming task butit is expected to give one's best remarks within the time frame of the journal.
Salient features of the JCDR: It is a biomedical, multidisciplinary (including all medical and dental specialities), e-journal, with wide scope and extensive author support. At the same time, a free text of manuscript is available in HTML and PDF format. There is fast growing authorship and readership with JCDR as this can be judged by the number of articles published in it i e; in Feb 2007 of its first issue, it contained 5 articles only, and now in its recent volume published in April 2011, it contained 67 manuscripts. This e-journal is fulfilling the commitments and objectives sincerely, (as stated by Editor-in-chief in his preface to first edition) i e; to encourage physicians through the internet, especially from the developing countries who witness a spectrum of disease and acquire a wealth of knowledge to publish their experiences to benefit the medical community in patients care. I also feel that many of us have work of substance, newer ideas, adequate clinical materials but poor in medical writing and hesitation to submit the work and need help. JCDR provides authors help in this regards.
Timely publication of journal: Publication of manuscripts and bringing out the issue in time is one of the positive aspects of JCDR and is possible with strong support team in terms of peer reviewers, proof reading, language check, computer operators, etc. This is one of the great reasons for authors to submit their work with JCDR. Another best part of JCDR is "Online first Publications" facilities available for the authors. This facility not only provides the prompt publications of the manuscripts but at the same time also early availability of the manuscripts for the readers.
Indexation and online availability: Indexation transforms the journal in some sense from its local ownership to the worldwide professional community and to the public.JCDR is indexed with Embase & EMbiology, Google Scholar, Index Copernicus, Chemical Abstracts Service, Journal seek Database, Indian Science Abstracts, to name few of them. Manuscriptspublished in JCDR are available on major search engines ie; google, yahoo, msn.
In the era of fast growing newer technologies, and in computer and internet friendly environment the manuscripts preparation, submission, review, revision, etc and all can be done and checked with a click from all corer of the world, at any time. Of course there is always a scope for improvement in every field and none is perfect. To progress, one needs to identify the areas of one's weakness and to strengthen them.
It is well said that "happy beginning is half done" and it fits perfectly with JCDR. It has grown considerably and I feel it has already grown up from its infancy to adolescence, achieving the status of standard online e-journal form Indian continent since its inception in Feb 2007. This had been made possible due to the efforts and the hard work put in it. The way the JCDR is improving with every new volume, with good quality original manuscripts, makes it a quality journal for readers. I must thank and congratulate Dr Hemant Jain, Editor-in-Chief JCDR and his team for their sincere efforts, dedication, and determination for making JCDR a fast growing journal.
Every one of us: authors, reviewers, editors, and publisher are responsible for enhancing the stature of the journal. I wish for a great success for JCDR."



Thanking you
With sincere regards
Dr. Rajendra Kumar Ghritlaharey, M.S., M. Ch., FAIS
Associate Professor,
Department of Paediatric Surgery, Gandhi Medical College & Associated
Kamla Nehru & Hamidia Hospitals Bhopal, Madhya Pradesh 462 001 (India)
E-mail: drrajendrak1@rediffmail.com
On May 11,2011




Dr. Shankar P.R.

"On looking back through my Gmail archives after being requested by the journal to write a short editorial about my experiences of publishing with the Journal of Clinical and Diagnostic Research (JCDR), I came across an e-mail from Dr. Hemant Jain, Editor, in March 2007, which introduced the new electronic journal. The main features of the journal which were outlined in the e-mail were extensive author support, cash rewards, the peer review process, and other salient features of the journal.
Over a span of over four years, we (I and my colleagues) have published around 25 articles in the journal. In this editorial, I plan to briefly discuss my experiences of publishing with JCDR and the strengths of the journal and to finally address the areas for improvement.
My experiences of publishing with JCDR: Overall, my experiences of publishing withJCDR have been positive. The best point about the journal is that it responds to queries from the author. This may seem to be simple and not too much to ask for, but unfortunately, many journals in the subcontinent and from many developing countries do not respond or they respond with a long delay to the queries from the authors 1. The reasons could be many, including lack of optimal secretarial and other support. Another problem with many journals is the slowness of the review process. Editorial processing and peer review can take anywhere between a year to two years with some journals. Also, some journals do not keep the contributors informed about the progress of the review process. Due to the long review process, the articles can lose their relevance and topicality. A major benefit with JCDR is the timeliness and promptness of its response. In Dr Jain's e-mail which was sent to me in 2007, before the introduction of the Pre-publishing system, he had stated that he had received my submission and that he would get back to me within seven days and he did!
Most of the manuscripts are published within 3 to 4 months of their submission if they are found to be suitable after the review process. JCDR is published bimonthly and the accepted articles were usually published in the next issue. Recently, due to the increased volume of the submissions, the review process has become slower and it ?? Section can take from 4 to 6 months for the articles to be reviewed. The journal has an extensive author support system and it has recently introduced a paid expedited review process. The journal also mentions the average time for processing the manuscript under different submission systems - regular submission and expedited review.
Strengths of the journal: The journal has an online first facility in which the accepted manuscripts may be published on the website before being included in a regular issue of the journal. This cuts down the time between their acceptance and the publication. The journal is indexed in many databases, though not in PubMed. The editorial board should now take steps to index the journal in PubMed. The journal has a system of notifying readers through e-mail when a new issue is released. Also, the articles are available in both the HTML and the PDF formats. I especially like the new and colorful page format of the journal. Also, the access statistics of the articles are available. The prepublication and the manuscript tracking system are also helpful for the authors.
Areas for improvement: In certain cases, I felt that the peer review process of the manuscripts was not up to international standards and that it should be strengthened. Also, the number of manuscripts in an issue is high and it may be difficult for readers to go through all of them. The journal can consider tightening of the peer review process and increasing the quality standards for the acceptance of the manuscripts. I faced occasional problems with the online manuscript submission (Pre-publishing) system, which have to be addressed.
Overall, the publishing process with JCDR has been smooth, quick and relatively hassle free and I can recommend other authors to consider the journal as an outlet for their work."



Dr. P. Ravi Shankar
KIST Medical College, P.O. Box 14142, Kathmandu, Nepal.
E-mail: ravi.dr.shankar@gmail.com
On April 2011

Important Notice

Original article / research
Year : 2024 | Month : May | Volume : 18 | Issue : 5 | Page : BC01 - BC06 Full Version

Correlation of Glycaemic Control and BMI with Renal Profile in Type 2 Diabetic Patients with and without Non Alcoholic Fatty Liver Disease: A Case-control Study

Published: May 1, 2024 | DOI: https://doi.org/10.7860/JCDR/2024/67504.19340

Preeti Vijaysing Padvi, Kavita More, Sandeep Rai

1. PhD Scholar, Department of Biochemistry, MGM Medical College, MGM Institute of Health Sciences, Navi Mumbai, Maharashtra, India. 2. Professor, Department of Biochemistry, MGM Medical College, MGM Institute of Health Sciences, Navi Mumbai, Maharashtra, India. 3. Professor, Department of General Medicine, MGM Medical College, MGM Institute of Health Sciences, Navi Mumbai, Maharashtra, India.

Correspondence Address :
Dr. Kavita More,
Professor, Department of Biochemistry, MGM Medical College, MGM Institute of Health Sciences, Navi Mumbai, Maharashtra, India.
E-mail: drkavitajadhav2020@gmail.com

Abstract

Introduction: Obesity is a risk factor for the development of diabetes, and these two are directly implicated in an individual’s risk of developing Non Alcoholic Fatty Liver Disease (NAFLD), which is a major factor in Metabolic Syndrome (MS). NAFLD and Type 2 Diabetes Mellitus (T2DM) are known to frequently coexist and act synergistically to elevate the risk of hepatic as well as extrahepatic complications.

Aim: To determine the levels of renal profile, electrolytes, Glycosylated Haemoglobin (HbA1c), and Body Mass Index (BMI) in T2DM patients with and without NAFLD, as well as in control subjects, and to assess the correlation of BMI and HbA1c with renal profile and electrolytes in T2DM patients with and without NAFLD.

Materials and Methods: This case-control study was conducted in the Department of Biochemistry and the Diabetes Speciality Clinic in the Department of General Medicine at MGM Medical College and Hospital, Navi Mumbai, Maharashtra, India, from December 2021 to March 2023. The study included a total of 90 subjects divided into three groups (30 in each): Group 1-Control, Group 2-T2DM with NAFLD, and Group 3-T2DM without NAFLD. Aseptic blood collection was performed, and Renal Function Test (RFT), electrolytes, and HbA1c levels were analysed. Group comparisons were done using unpaired t-tests, and correlation analysis was conducted using Pearson’s correlation with Statistical Package for Social Sciences (SPSS) software version 25.0.

Results: The authors found that 57% of the total enrolled population were female, while the remaining 43% were male, with a mean age of (49.03±5.09) years. Mean levels of HbA1c (9.55±1.78, 8.61±1.42%), BMI (28.84±4.19, 23.51±2.09) kg/m², Urea (31.62±6.28, 33.02±5.11) mg/dL, Creatinine (1.29±0.18, 1.36±0.10) mg/dL, and Uric acid (6.74±1.19, 6.01±0.83) mg/dL were found to be significantly higher in Group 2 and Group 3, respectively, compared to controls. A positive significant correlation of BMI with uric acid, HbA1c with urea, creatinine, and uric acid in Group 2 and 3 was observed. However, no derangement was observed concerning electrolytes in any group.

Conclusion: The correlation of urea, creatinine, and uric acid with HbA1c provides the authors with information on impaired renal function in diabetic as well as NAFLD participants. Hyperuricaemia in these individuals can aggravate the risk of T2DM and NAFLD, leading to its progression in Non Alcoholic Steatohepatitis (NASH), respectively.

Keywords

Body mass index, Creatinine, Electrolytes, Fasting glucose, Hepatic disorder, Metabolic syndrome

Introduction
There has been a rapid increase in the prevalence of Type 2 Diabetes Mellitus (T2DM) worldwide. According to the latest International Diabetes Federation (IDF) report, 537 million adults (10.5% of the global population) are living with diabetes mellitus worldwide, with 90 million residing in Southeast Asia (1). Diabetes mellitus is a common yet potentially devastating group of metabolic illnesses characterised by hyperglycaemia brought on by defects in insulin secretion, insulin action, or both (2),(3).

Obesity is a major risk factor, along with other genetic, environmental, and psychosocial factors, for the development of diabetes mellitus. Diabetes-related chronic hyperglycaemia contributes to long-term damage and dysfunction of many organs, particularly the heart, blood vessels, nerves, eyes, and kidneys (4).

Obesity often correlates with MS, a condition associated with pro-inflammatory states and considered to represent a collection of risk factors. The diagnosis of MS is made when any three of the following five risk factors are present: central obesity, high blood pressure, loss of glycaemic control, low serum High-density Lipoprotein (HDL), and high serum triglycerides (4). Therefore, obesity and T2DM together increase an individual’s risk of developing NAFLD. An international panel has now named it Metabolic Associated Fatty Liver Disease (MAFLD) (5).

Numerous studies have shown the prevalence rate of NAFLD to be around 9-32% in the general Indian population, with a higher prevalence among obese and diabetic individuals [6,7]. The prevalence rate of NAFLD in T2DM is expected to range from 12.5% to 87.5% in India (8). NAFLD is one of the most common liver disorders and has grown to become a global public health concern. It develops when fat accounts for more than 5-10% of the liver’s weight (9).

Fat accumulation occurs predominantly in the form of triacylglycerols as a result of an alteration in the homeostasis that regulates liver fat synthesis (10). NAFLD has been considered a benign disease often associated with central obesity, Insulin Resistance (IR), and other MS attributes. However, recent studies have highlighted that NAFLD is a chronic condition that encompasses histologically and clinically different non alcoholic entities; fatty liver and steatohepatitis may progress to cirrhosis and, rarely, to hepatocellular cancer [9,11]. Thus, it is clear that it is a “multisystem disease,” associated not only with hepatic dysfunction or hepatocellular carcinoma but also with an increased risk of developing cardiovascular disease, T2DM, and Chronic Kidney Disease (CKD) (12).

Glycosylated Haemoglobin (HbA1c) is a distinctive glycosylated protein commonly used in assessing glycaemic control (13). Therefore, it can be assumed that patients with NAFLD are likely to have elevated HbA1c levels. There is evidence suggesting a deranged renal profile due to a decreased estimated Glomerular Filtration Rate (eGFR) as well as electrolyte imbalances primarily in T2DM and NAFLD due to similar metabolic risk factors, indicating a potential pathophysiological link between NAFLD and CKD (14). Thus, taking this into account, the present study was designed to assess the correlation between BMI status and HbA1c levels with renal profile and electrolytes in T2DM participants with and without NAFLD to evaluate the severity and improve the management of the participants.
Material and Methods
A case-control study was conducted at the Department of Biochemistry and Diabetes Specialty Clinic in the Department of General Medicine at MGM Medical College and Hospital, Navi Mumbai, Maharashtra, India, from December 2021 to March 2023. The project was approved by the Institutional Ethics Committee (ECR/457/Inst/MH/2013/RR-20). Written consent was obtained from all subjects. All participants were informed about the study procedures and enrolled with their written consent.

Inclusion criteria: Patients with Type 2 diabetes mellitus as per American Diabetes Association (ADA) guidelines for the diagnosis and classification of diabetes mellitus, with HbA1c levels >6.5% (3), without NAFLD, aged between 35 and 75 years, were included in Group 3. Diagnosed T2DM patients and NAFLD {diagnosed by Ultrasonography (USG)} with a similar age group were included in Group 2. All participants who voluntarily participated in the study were enrolled.

Exclusion criteria: Type 1 diabetes mellitus patients or any other type of diabetes were excluded from Group 3. For Group 2, type 1 diabetes mellitus patients or any other type of diabetes, and patients with a history of any other liver disease, were excluded. Detailed history of alcohol consumption (if more than 40 units/week), smokers, and pregnant women were excluded from the study groups.

Sample size calculation: The sample size was calculated using the following formula:

The sample size was calculated based on the prevalence rate of NAFLD with T2DM, which is 80% as reported by Prashanth M et al., and the prevalence rate of T2DM, which is 90% as reported by the global diabetes community (UK), with a power of 80% and alpha set at 0.05 and beta at 0.3 (8),(15). The sample size obtained was 29 in each group, thus totalling 30 in each group and 90 participants overall.

Study Procedure

Diagnosed T2DM patients attending the Outpatient Department (OPD) were enrolled and further grouped based on the radiological findings of USG Abdomen. A total of 90 participants (30 in each group, i.e., Group 1-Control, Group 2-T2DM with NAFLD, Group 3-T2DM without NAFLD) were enrolled in the study.

A detailed clinical history of the participants who attended the diabetes specialty clinic was recorded, including family history of diabetes, demographics (age, sex), as well as anthropometrics (height, weight, BMI), using standard procedures and calculations. Aseptic technique was used for blood collection. A total of 5 mL of blood was drawn from each participant and transferred to plain and Ethylenediamine Tetraacetic Acid (EDTA) vacutainers for biochemical analysis, which included RFT with electrolytes and HbA1c.

The RFT with electrolytes was performed on Beckman Coulter AU480 (with reference ranges: Urea 15-40 mg/dL, Blood Urea Nitrogen (BUN) 10-18 mg/dL, Creatinine 0.6-1.2 mg/dL, Uric acid 2-6 mg/dL, Sodium 135-145 mEq/L, Potassium 3.5-5.1 mEq/L, Chloride 98-107 mEq/L), whereas HbA1c was measured using the Bio-Rad D-10 haemoglobin testing system (with a reference value of <5.7%) (16).

Statistical Analysis

The data was recorded and analysed using SPSS software version 25.0. Quantitative data were represented in the form of mean±Standard Deviation (SD). Odds ratio was calculated using bivariate logistic regression to determine the risk factors, and differences in the means between two groups were analysed using an unpaired t-test. Pearson’s correlation analysis was also performed to determine the association between the variables. A p-value of <0.05 was considered statistically significant.
Results
A total of 90 participants were enrolled in the study, which was further grouped into three groups: Group 1: Control, Group 2: T2DM with NAFLD, and Group 3: T2DM without NAFLD. Each group comprised 30 participants who were differentiated based on the radiological findings of USG abdomen. In the present study, the majority were female participants (57%) compared to male participants (43%) amongst the enrolled participants, with a mean age of 49.03±5.09 years (Table/Fig 1).

A total of 52 (58%) of the enrolled participants had a family history of diabetes, whereas 38 (42%) did not. When comparing the anthropometric parameters (BMI) and HbA1c of the control group with the patient groups in the study, it was found that the BMI and HbA1c levels of Group 2 and 3 (T2DM with NAFLD and T2DM without NAFLD) were significantly higher compared to those of Group 1 (control) with a p-value of <0.001 (Table/Fig 2).

The results indicated that urea, BUN, creatinine, and uric acid were significantly higher with a p-value <0.001 in participants with T2DM with NAFLD (Group 2) and T2DM without NAFLD (Group 3) compared to the controls (Group 1). Other biochemical parameters, such as electrolytes, were found to be normal without any significant changes in their levels (Table/Fig 3).

Correlation analysis of BMI with RFT and electrolytes was performed. A positive significant correlation of BMI with uric acid was observed in Group 2 and 3. The correlation analysis of BMI with urea and creatinine depicted a positive but non significant correlation. Further observations of the correlation analysis of HbA1c with RFT and electrolytes indicated a positive significant correlation of HbA1c with urea, creatinine, and uric acid in both groups 2 and 3. Electrolytes did not show any correlation with HbA1c and BMI in any of the study groups (Table/Fig 4). (Table/Fig 5),(Table/Fig 6) represent the correlation between BMI and uric acid in Group 2 and 3, respectively. Similarly, (Table/Fig 7),(Table/Fig 8),(Table/Fig 9),(Table/Fig 10),(Table/Fig 11),(Table/Fig 12) depict the correlation between HbA1c with RFT and electrolytes.

Risk factors were predicted using odds ratio. A higher odds ratio of more than 1 was observed in cases vs. control with respect to the renal profile, which included urea, BUN, creatinine, uric acid, and their risk in diabetic as well as obese participants. Electrolytes were also measured for the risk assessment, but no data was obtained due to constant values (Table/Fig 13).
Discussion
Obesity is rapidly increasing in the general population, according to World Health Organisation (WHO) estimates, and this appears to be associated with poor diet and sedentary lifestyle choices as a consequence of technological progress. The number of overweight people was expected to grow from 1.6 million in 2005 to 3.3 million in 2015. Furthermore, it is estimated to increase from 400 million to 700 million in the same time span (17). Obesity is a complex, chronic, non communicable disease affecting more than one-third of the global population (18). Obese patients exhibit typical metabolic alterations such as IR and type 2 diabetes mellitus. IR is characterised by impaired insulin-induced glucose uptake and metabolism in adipocytes and skeletal muscle, as well as impaired regulation of hepatic glucose synthesis, and it is a major aetiological factor for diabetes mellitus (4).

Obesity and diabetes mellitus are regarded as major risk factors for NAFLD, and they have a productive link with both the existence and progression of the disease. Obese and diabetic individuals have a higher incidence of hepatic steatosis, cirrhosis, and a greater probability of developing Hepatocellular Carcinoma (HCC) (19). Lipotoxicity and glucotoxicity are key factors in the development of basic steatosis in the liver and its progression to NASH. A high-fat and carbohydrate diet, which obese persons are more likely to follow, promotes fat deposition in the liver, contributing to the advancement of NAFLD (10).

Over the years, the relationship between uric acid and BMI has been widely studied. As we all know, uric acid is the end result of purine degradation. At increased concentrations, uric acid can act as a pro-oxidant and thus can be used as a marker of oxidative stress (20). Uric acid is mostly eliminated by the kidneys (>70%), with a lesser percentage through intestinal and biliary secretion (21). In obese individuals, abnormalities in Serum Uric Acid (SUA) metabolism and decreased excretion by the kidneys, as well as increased exogenous protein consumption and endogenous uric acid synthesis, are additional variables that contribute to hyperuricaemia (22),(23),(24). Elevated uric acid levels have been linked to an increased risk of MS, atherosclerosis, and chronic renal disease (25).

According to a study conducted by Duan Y et al., in 2015 on 3529 participants, it was demonstrated that there is a positive significant correlation between obesity and serum uric acid, which aligns with the present study findings of Group 2 and 3 when correlated between BMI and uric acid. Several other studies with similar findings have shown a strong correlation between uric acid and BMI of MS participants wherein obesity is a major factor (26). The link between Hyperuricaemia (HUA) and obesity can be explained by a number of mechanisms. Obesity or excess body fat may be amalgamated with increased uric acid production due to increased intracellular adenosine (uric acid precursor) which is a derivative of higher Adenosine Monophosphate (AMP) concentrations due to increased synthesis of Fatty-acyl-Coenzyme (CoA) in peripheral tissues (27), and inadequate evacuation as a result of IR and/or hyperinsulinemia, leading to an impaired uric acid metabolism and even HUA. Meanwhile, HUA can induce obesity by accelerating liver and peripheral fat synthesis (28). A comparison of findings of previous study with the present study has been tabulated in (Table/Fig 14) (28),(29),(30),(31),(32),(33).

Similarly, when serum uric acid was correlated with HbA1c, which was used as a measure of blood glucose metabolism, a positive significant correlation was observed in Group 2 and 3. The key factor on which this correlation of HbA1c with uric acid mostly relies on is insulin levels (25),(34). This condition could be explained by the action of insulin on uric acid and glucose metabolism. Hyperinsulinemia may stimulate the hexose phosphate shunt, promoting purine biosynthesis and transformation, thereby increasing the rate of uric acid production (35). Additionally, insulin may stimulate uric acid reabsorption from the kidneys by activating the urate anion transporter on the border membrane of the proximal tubular brush, leading to an increase in serum uric acid concentration. Insulin can also enhance renal tubular sodium reabsorption (36), which in turn can reduce renal excretion of uric acid. Hyperinsulinaemia could contribute to hyperuricaemia by increasing the rate of xanthine oxidase synthesis, an enzyme involved in UA production (37). Studies conducted by Hussain A et al., in 2018 and Donkeng M et al., in 2021 have reported similar correlational observations between HbA1c and UA (33),(38). A comparison of the findings of previous studies with the present study has been tabulated in (Table/Fig 15) (33),(38),(39).

When HbA1c was correlated with other parameters of RFT such as urea and creatinine, a positive significant correlation was demonstrated. Given that diabetic nephropathy is a common condition, correlating the provided parameters yielded significant results in Group 2 and 3, which consisted of subjects with T2DM with NAFLD and T2DM without NAFLD, respectively. Type 2 hyperglycaemia typically manifests after the age of 40 years, when the kidneys are already experiencing the long-term effects of ageing and other chronic renal damage promoters such as arterial hypertension, dyslipidaemia, and obesity. This is likely the reason for elevated serum creatinine and urea levels in Type 2 diabetes. According to a study conducted in the Indian diabetic community by Unnikrishnan RI et al., poor glycaemic control is a significant factor responsible for the micro- and macrovascular alterations that occur in diabetes, predisposing diabetic patients to complications (40).

Studies have suggested that long-term diabetes causes higher serum creatinine and urea concentrations, which are risk factors for the progression of kidney damage. Prolonged hyperglycaemia and its associated risks, where excess glucose binds with collagen and tissue proteins, resulting in non enzymatic glycosylation similar to the formation of HbA1c, can lead to microvascular and macrovascular damage. Over time, elevated blood sugar levels damage millions of nephrons, the microscopic filtering units in each kidney, leading to abnormalities in metabolite filtration (41). T2DM plays an important role as a risk factor for the impairment of RFTs in NAFLD subjects as well. These two being a prominent part of MS makes it even more evident.

Limitation(s)

The present study had a few limitations. Since it was limited to one tertiary care facility, it is possible that the findings may not apply to a broader population. Secondly, the study did not include detailed anthropometric data and the most sensitive biomarkers such as micro-albumin, cystatin C, and GFR for renal impairment, which could have provided further insight into the causal relationship between obesity, diabetes, and NAFLD.
Conclusion
The NAFLD is closely associated with IR, obesity, and T2DM, resulting in detrimental hepatic as well as extra-hepatic consequences. Elevated levels of urea, creatinine, and uric acid, and their positive correlation with HbA1c, establish a connection between NAFLD and renal impairment in T2DM. Hyperuricaemia in these individuals can exacerbate the risk of T2DM and NAFLD progression to NASH, respectively. However, no statistically significant difference could be observed with respect to electrolytes in any of the study groups.

Regular assessment of renal parameters would provide early detection and might help in planning both therapeutic and preventive implications. Weight loss can be recommended through proper exercise and a healthy diet plan, which can help limit the damage.
Acknowledgement
The authors would like to thank all the physicians, students and laboratory mates who were of constant help throughout the research process and also all the participants who volunteered in the study.
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DOI and Others
DOI: 10.7860/JCDR/2024/67504.19340

Date of Submission: Sep 12 2023
Date of Peer Review: Dec 07, 2023
Date of Acceptance: Feb 26, 2024
Date of Publishing: May 01, 2024

AUTHOR DECLARATION:
• Financial or Other Competing Interests: None
• Was Ethics Committee Approval obtained for this study? Yes
• Was informed consent obtained from the subjects involved in the study? Yes
• For any images presented appropriate consent has been obtained from the subjects. NA

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