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

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Chairman, Research Group, Charutar Arogya Mandal, Karamsad
National Joint Coordinator - Advanced IAP NNF NRP Program
Ex-Member, Governing Body, National Neonatology Forum, New Delhi
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On Sep 2018




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"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."



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




Dr. Mamta Gupta,
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Dr. Mamta Gupta
Consultant
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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.


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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.
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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 : 2010 | Month : August | Volume : 4 | Issue : 4 | Page : 2771 - 2775

Comparative Study Of Oxidative Stress And Antioxidant Activity In Males And Females With Increase In Age

KAUR S*, KUMAR R**, GUPTA K**, MANCHANDA KC****

*Asst Professor Department of Physiology,Adesh Institute of Medical Sciences and Research, Bathinda-151101, Punjab,India. ** Lecturer Department of Microbiology, Adesh Institute of Medical Sciences and Research,Bathinda-151101, India. *** Asst Professor, Department of Biochemistry. Adesh Institute of Medical Sciences and Research, Bathinda-151101, Punjab,[India ] ****Prof & Head Department of Physiology, Govt Medical College, Amritsar, Punjab,India.

Correspondence Address :
Corresponding author
*Asst Professor Department of Physiology, Adesh Institute of Medical Sciences and Research,Bathinda-151101, Punjab,[India] E-mail sandeepkular72@yahoo.co.in. Tel: +91-9876010729

Abstract

Aim:The aim of the study was to compare the extent of free radical damage in the form of oxidative stress and the antioxidant activity with increase in age in healthy males and females.
Methods: The present study was conducted in 150 normal healthy subjects of both sexes in the age ranging from 15 – 65 years. They were divided in 3 groups. Each group had equal number of male and female subjects. Oxidative stress was by measured by estimating malondialdehyde [MDA], a lipid peroxidation product, and antioxidants in the form of superoxide dismutase [SOD] and glutathione peroxidase [GPX] in both male and female subjects of all age groups.
Results: MDA levels increased significantly with increase in age of all subjects and this increase was more in females was more than males of each group. Levels of antioxidant enzymes [SOD and GPX] decreased with increase in age more in males than females of each group.
Conclusion: Males are exposed to greater risk of oxidative stress with age compared to females which may be related to lower life expectancy in males.

Keywords

Lipid Peroxidation, MDA, SOD

How to cite this article :

KAUR S, KUMAR R, GUPTA K, MANCHANDA KC. COMPARATIVE STUDY OF OXIDATIVE STRESS AND ANTIOXIDANT ACTIVITY IN MALES AND FEMALES WITH INCREASE IN AGE. Journal of Clinical and Diagnostic Research [serial online] 2010 August [cited: 2019 Oct 21 ]; 4:2771-2775. Available from
http://jcdr.net/back_issues.asp?issn=0973-709x&year=2010&month=August&volume=4&issue=4&page=2771-2775&id=814

Introduction
Life span of an organism depends on it’s ability to counteract oxidative threat (1). Free radicals are generated by redox reactions that occur during normal physiological processes and also contributed by environmental sources, cause cell damage by autocatalytic lipid peroxidation of membranes, lesions in DNA, and cross-linkage in proteins.(2) All the major classes of biomolecules may be attacked by free radicals but the lipids are probably the most susceptible (3). Cell membranes are rich sources of polyunsaturated fatty acids [PUFAs] which are readily attacked by oxidizing radicals. The oxidative destruction of PUFAs, known as lipid peroxidation is particularly damaging because it proceeds a self perpetuating chain reaction4. Malondialdehyde,[ MDA] is the major reactive aldehyde, resulting from the peroxidation of biological membrane5. Detoxification of reactive oxygen species is one of the prerequisites of aerobic life, and many defenses have evolved providing an important antioxidant defense system of prevention, interception and repair. These defenses consist of nonenzymatic scavengers and quenchers as well as enzymatic systems including superoxide dismutases[SOD] and hydroxyperoxidases such as catalase and glutathione peroxidase. Oxidative stress results from the imbalance in the pro-oxidant antioxidant equilibrium in favour of pro-oxidants and is apparent in pathology associated with aging and many age-related chronic diseases such as diabetes mellitus, rheumatoid arthritis and neurodegenerative diseases (6). In this study an effort was done to compare oxidative stress in males and females . To assess the level of oxidative stress malondialdehyde, the end product of lipid peroxidation reaction that is produced as a result of damage to cell membrane lipids by free radicals was measured. To determine the extent of protection against these oxidants, the levels of antioxidants SOD and GPX were estimated in the serum and plasma of all subjects.

Material and Methods

Methods
The present study was conducted in 150 normal healthy individuals of different age-groups. The study was conducted in department of Physiology Adesh Institute of Medical Sciences and Research, Bathinda in department of Physiology with approval of ethical committee. The attendants of the patients in the hospital were taken as subjects. They were divided into three Groups on the basis of age; Group I [15-30 years], Group II [31-45 years] and Group III [46-65 years]. Each group comprised of 50 subjects and equal number of males and females were taken in each group. Informed consent was taken from all the subjects. A detailed history including the history of diet and lifestyle was taken and general physical and systemic examination was done .All the selected subjects were healthy and were not suffering from any disease like hypertension, diabetes mellitus, rheumatoid arthritis, malignancy, collagen disorders, or any other disease. Pregnant females and subjects on any medication or taking vitamins or mineral supplements were excluded from study. Weight was taken on a weighing scale with standard minimum clothing to the nearest 0.5 kg. Hemoglobin was estimated by using Sahli’s method (7).
For assessment of other parameters 10 ml of fasting venous blood samples was taken under with dry disposable syringe and needle under all aseptic conditions by venepuncture in the anticubital vein in a sterile, dry, acid washed vials. Malondialdehyde [MDA] levels in serum were estimated by the method of Satoh (8). Superoxide Dismutase [SOD] activity in serum was assayed by using the method of Marklund and Marklund (9) Glutathione peroxidase [GPX], GPX activity in plasma was measured by using hydrogen peroxide as a substrate by applying the method of Rotruck. (10)

Statistical analysis: Statistical analysis was carried out by Student’s paired ‘t’-test. The data were expressed as Mean ± SD and the p value < 0.05 was taken as significant.

Results

The subjects were divided into three groups [Group I, Group II and Group III ] on the basis of age. Each Group comprised of 33.3% of the total subjects with equal no of males and females.[Table /Fig 2] depicts that mean ± SD serum MDA levels in males and females increased with age but levels in males were more than the females of same age group. Highly significant p<0.001 percentage difference was observed between males and females of Group II . Mean ± SD serum SOD levels decreased in all subjects with increase in age Males of Groups I & II had significantly lower values than the females of same age
groups, while serum SOD levels in males of Group III was significantly higher than females of same age Group. Mean ± SD serum GPx levels also decreased with increase in age and levels in males were less as compared to females in each group.

Discussion

Malondialdehyde [MDA], a secondary product of lipid peroxidation, used as an indicator of tissue damage by a series of chain reactions(11). In this study we observed that the levels of MDA increased with increase in age and levels in males were significantly more as compared to females.in each group. A significant increase in lipid peroxidation level was also observed by several other authors in elderly subjects as compared to younger subjects.[12,13,]. Increase in serum lipid peroxidation level with increase in age is linked to increase in the cellular amount of free radicals by generation of superoxide radicals and hydrogen peroxide from respiring mitochondrias(14). Alteration in lipid peroxidation and antioxidant enzymes was done in population of Amritsar, India (15). Increases in the body content of iron with age [in men throughout their lives and in women after menopause] in humans, may increase the risk of oxidative damage.(16).
. In our study the mean SD lipid peroxidation level in males was more as compared to females. Similar results showing male subjects having significantly higher values as compared to female subjects were observed in another study (17). Accumulation of chromolipids which result from the polymerization of oxidized unsaturated lipids increase lipid peroxide levels in aging Females are endowed with the system of inhibiting lipid peroxide production or accelerating it’s removal by mechanisms different from that of male which accounts for lower levels of lipid peroxides in females(18).
Decline in the competence of the oxy radical-detoxifying mechanisms, with increase in age results in increased serum lipid peroxidation (19) In our study serum SOD levels and plasma GPX levels decreased in all subjects with increase in age Similar reports of decreased antioxidant enzyme activities with increase in age has been reported in by other authors [ 20, 21].
In present study ,males had lower SOD and GPX values than the females of same age groups Superoxide dismutase [SOD] is the first line of defense against superoxide radical. SOD is considered to be a stress protein which is synthesized in response to oxidative stress which is involved in pathophysiology of aging and age-related diseases (22). CuZn superoxide dismutase activity in males was less than females (23). Increase in SOD activity in females as compared to males was correlated with greater longevity in females (24). Similar reports of lower E-GPX activity in men. than women was found in another study (25). It is well reported that low activity of this enzyme may render the tissue more susceptible to lipid peroxidation damage (26) Glutathione peroxidase is a selenoenzyme which catalyzes the reduction of hydroperoxides at the expense of reduced glutathione GPX catalyses the reduction of variety of hydrogen peroxide [ROOH and H2O2] using glutathione as a substrate, thereby protecting mammalian cells against oxidative stress (27).

Conclusion

It is evident from this study that there is enhanced oxidative stress and decreased antioxidant defence in all subjects with increase in age which can play an important role in the pathogenesis of the various age related diseases .Higher oxidative stress in in males may be the underlying mechanism for the increased rate of ageing and lower life expectancy in males Healthy lifestyle and exercise must be advised and alcohol and smoking should be strictly prohibited in males. . Antioxidants in the form of vitamins/minerals can be given as supplements to counteract changes due to aging

References

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Lishnevskaia V .2004. The role of free radicals oxidation in the deterioration of haemovascular homeostasis in aging. Adv Gerontol, 13: 52-57.
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RizviSI, MauryaPK 2007.Markers of Oxidative Stress in Erythrocytes during Aging in Humans Annals of the New York Academy of Sciences IssueBiogerontology1100:373 - 382
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.Mc Cord JM 1990. Is superoxide dismutase a stress protein? In Borbon R, Rice-Evans C, Blake D, Winrow C, editors. Stress proteins in inflammation. Richelien, London,p. 125.
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De La Torre R, Casado A, Lopez-Fernandez ME, Carrascosa D, Venarucci D. 1999.Superoxide dismutase activity levels in a Spanish population 50-93 years.Am J Hum Biol, 11
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Blum J, Fridovich I 1985. Inactivation of glutathione peroxidase by superoxide radical. Arch Biochem Biophys, 240: 500-508.

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  • Google Scholar
  • HINARI Access to Research in Health Programme
  • Indian Science Abstracts (ISA)
  • Journal seek Database
  • Google
  • Popline (reproductive health literature)
  • www.omnimedicalsearch.com