International Journal of Current Research and Review
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IJCRR - 13(5), March, 2021

Pages: 150-156

Date of Publication: 03-Mar-2021


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Elicitation of Bioactive Molecule by Screening of Fungal Secondary Metabolites Against MDR Staphylococcus Aureus

Author: Renuka Bali N, Dandin CJ, Vedamurthy AB

Category: Healthcare

Abstract:Introduction: Fungal secondary metabolites are a diverse group of bioactive compounds; in which many have been reported as bio-therapeutics. Objective: The present study, relates to fungal secondary metabolites produced by filamentous fungi and screened against 21 clinical isolates of Staphylococcus aureus procured from Shri Dharmasthala Manjunatheshwara Medical College and Hospital Dharwad, Karnataka. Methods: Antibiogram assay was performed for these clinical isolates against Methicillin, Chloramphenicol, Vancomycin, Oxacillin and Clindamycin by Kirby Bauer's method. The zones were measured and compared to the Clinical and Laboratory Standard's Institute chart. Results: The resistance pattern observed for Methicillin-90.47%, Chloramphenicol-4.76%, Vancomycin-14.28%, Oxacillin-80.95% and Clindamycin-9.5%. We infer that, out of 21 interactions, 5 distance, 7 overgrowth, 4 contact and 5 zone-line inhibitions were observed. The zone of inhibition range observed was 10-17 mm against all 21 S. aureus strains after 18 hr incubation at 37 \?C on Mueller Hinton Agar plates. Bio-activity against S. aureus was noticed for F4 isolate between the 4-6th day of incubation and not on 7th day or later. The maximum inhibition zone observed for ethyl acetate:water fraction. Conclusion: The isolated compound from P. polonicum showed potent activity against the Methicillin-resistant Staphylococcus aureus (MRSA) clinical isolates has not been used against any MRSA or Methicillin-resistant Staphylococcus aureus (VRSA) clinical isolates.

Keywords: Antibiogram, Co-Culture assay, Biphasic separation, Ethyl acetate, Penicilium polonicum

Full Text:

INTRODUCTION

The organism which shows resistance to one or more class/es of antibiotics referred as Multidrug resistance (MDR) (predominantly bacteria) is a grave threat that can lead to deaths of 10 million people per year by 2050.1 Pathogens like Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumanii, Pseudomonas aeruginosa, and Enterobacter species (ESKAPE) were reported to emphasize that they currently cause the majority of infections and effectively “escape” the effects of antibacterial mechanisms. More people now die of Methicillin-resistant Staphylococcus aureus (MRSA) infection in the United State (US) hospitals than of HIV/AIDS and tuberculosis combined.2,3 Furthermore, pan-antibiotic-resistant infections now occur with increasing frequency over the past several decades.4 Out of different dangerous Gram-positive and Gram-negative bacteria MDR strains of Staphylococcus aureus also reported as MRSA and VRSA which belongs to firmicutes family and Gram positive coccoid bacteria are realized as a major threat.4 MDR Staphylococcus aureus is a community associated infectious agent found globally. The continuous trials being carried out to resolve this multidrug resistance and in the context fungal secondary metabolites are promising as bio therapeutics to tackle these MDR S. aureus. The fungal secondary metabolites are defensive compounds that have emerged as better options due to pharmacological evidence of them being more efficient and versatile molecules. Co-culture method is one of the methods to induce the formation of new secondary metabolites which are highly relevant for novel drug research against MDR bacteria.

MATERIALS AND METHODS

Isolation of fungi

Soil samples were collected in and around Karnataka University campus in sterile polythene bags. 1gram of finely sieved soil sample was serially diluted in sterile water. 1ml of sample uniformly inoculated by spreader in SDA and PDA plates and incubated for 3-5days at room temperature. Lush growth was observed in mother plates.  40 pure isolates were maintained as pure cultures, 20 isolates were distinct and unique. Out of 20 fungi, five fungi were randomly picked by their unique morphological features for further process.

Antibiotic assay 

The antibiotic assay was performed according to Kirby-Bauer’s antibiotic susceptibility test developed in 1950 and standardized by World Health Organization (WHO) in 1961.2 It is used to determine the resistance or sensitivity pattern of pathogenic bacteria isolates for prescribed antibiotics and further evaluated by using Clinical and Laboratory Standards Institute (CLSI). The presence or absence of an inhibitory area around the antibiotic disc identifies the bacterial sensitivity to the drug. The bacterium (S. aureus isolate) was swab inoculated on the Muller-Hinton agar plates and the antibiotic discs (Methicillin, Chloramphenicol, Vancomycin, Oxacillin and Clindamycin,) were placed on top of swab-inoculated MHA media. The antibiotics diffuse from the disc into the inoculated agar media in decreasing concentration outwards in a circular pattern from the antibiotic disc. If the organism is killed or growth inhibited by the concentration of the antibiotic that diffuses from the filter disc, there will be a clear zone around the disc (Figure 2). This measure of the zone (in mm) of inhibition leads to understanding the minimum inhibitory concentration (MIC) values of antibiotics with suitable concentration against S. aureus. The zone sizes were measured (in mm) and compared to the standard CLSI5 (Table 2) that evaluates the results of the organism showing sensitive, intermediate and resistant activity against that particular antibiotic concentration.

Co-culture assay

Co-culture assay is a method of inoculating 2 different micro-organisms with proximity (side by side, few mm apart) to observe their association interactions. The fungus was inoculated with all 21 Staphylococcus aureus to observe the types of association and interactions. The zones of inhibitions were recorded as the zone of contact inhibition, overgrowth inhibition, zone line inhibition and distance inhibition. Previously the classical work of Alexander Fleming’s unintended result shows the antagonistic property of fungus over Staphylococcus sps.6 In this association inducing/ triggering secondary metabolites of fungi which are proved to be many bio-therapeutics. The co-existence of several Micro-organisms that share the same niche can affect the organism growth, adaptation patterns, morphology and developmental patterns.5,7 Co-culture assay used to check the natural compounds released from the association interactions.2,3   

Fermentation

Fermentation method provides rich culturing of fungi (quantitatively) and serves for qualitative analysis like the enzymes and metabolites secreted in the broth can be assessed by different methods. The fungi were inoculated in PDB broth of 200 ml in 1000 ml conical flask to provide the proper base and it is protein supplemented with 1% peptone. Microscopic observation was done to check the fungal contamination with bacteria. The fungal growth could be observed from 3rd day. The rich growth was observed in both static and rotary method. The fungal yield could be noticed as high in static fermentation. The induction of secondary metabolites was observed from 3 rd day to 10th day by well diffusion method. The fungal broth was decanted under sterilized conditions to eppendorf tubes. The crude broth was subjected to well diffusion method. The result was observed for crude broth from 4th day to 10th day the fungal broth was filtered by 0.2 μ bacterial filter under sterile conditions. And this clear fungal broth was subjected to well diffusion method. After 6th day the filtered fungal broth did not show any activity by well diffusion method. The old culture was inoculated to fresh PDB media and repeated the activity. Out of 5 fungi (F1, F2, F3, and F5), F4 isolate showed the best activity by this method.

Well, the diffusion method

Well, the diffusion method is one of the well established bio-assay activity methods where the sample was diffused to form inhibition zones. Here 21 S. aureus samples were cotton swab cultured on MHA plates in clock and anti-clock strokes for uniform spreading. Different cotton swabs (sterile) were used for all 21 S. aureus samples. The wells were prepared using cork borer and these were equidistant from each other. The filtered fungal broth was loaded to 4 different wells marked as 1, 2, 3 and 4 with fungal broth volume loaded to these were 5, 10, 25 and 50μls respectively.  The fungal broth was properly loaded within the good space so to take care of the overflow on the agar surface. The samples thus loaded on S. aureus inoculate MHA plates were allowed to diffuse for some time in LAF only. These were aseptically stretch wrapped and kept for incubation at 37 °C for 18 to 24 hrs. The results were recorded for 12th and 18th hour. These MHA plates were arrested in refrigerator after recording the zone measurement and documenting the results.

Biphasic separation

The crude broth activity showing positive results from well diffusion method was subjected to biphasic separation to understand the active molecule’s polarity continued by bio-activity assessment. Biphasic separation is one of the methods used to separate and solubilise the desired compound in a polar and non-polar combination ratio. Separating funnel was used for this method it was thoroughly washed and ethanol rinsed. The 5 different solvents used were Chloroform, Ethyl acetate, Benzene and Toluene. 5 ml of fungal broth and 5 ml solvent poured into the separating funnel, swirled for 5 to10 minutes. Arrest for 30 minutes and again continued this process till the aqueous and solvent phase separates distinctly. The aqueous and solvent phase was decanted slowly in separate vials. These vials kept for drying and it is solubilised with ½ ml of Dimethyl sulphoxide (DMSO). The aqueous phase and solvent phase have been separately taken in a petri dish and dried. These reconstituted solvent extracts were subjected to a good diffusion method. 75μl of all the sample aliquots were dispensed to the respective wells and DMSO as control. Extract samples in well no. 1 and 4 are aqueous phases and chloroform, 2 and 6 are aqueous phase and ethyl acetate, 3rd and 5th are aqueous phase and Benzene and the 7th one was Toluene and 8th as an aqueous phase of Toluene did not dry. So this was not considered for well diffusion method. 

RESULTS

Isolation of fungi

The fungal isolates (F1, F2, F3, F4 and F5) were observed for their colony characterization. These were stained with Lactophenol cotton blue and microscopic observation was done up to genus level. These isolates were picked for its unique and distinct morphological features to perform co-culture assay against S. aureus after confirming the resistance pattern by Antibiogram Assay (Figure 1)

Antibiogram assay for Staphylococcus aureus

Antibiogram assay was conducted for 21 Staphylococcus aureus procured from SDM Medical College, Dharwad, Karnataka. These were revived in Muller-Hinton broth and incubated for 12-24 hours at 37 °C and used as the source for S. aureus pure culture isolates in further studies. The fresh cultures on attaining an optical density of 1.0-1.5 checked through turbidometric/ spectroscopic method and were used to conduct antibiogram assay by Kirby Bauer’s method using reference antibiotics, MHA plates (21 nos.) were cotton swabbed with 21 S. aureus isolates individually and the antibiotic discs were gently placed on the media equidistantly without disturbing the media and incubated 18-24 hours at 37 °C. The 5 antibiotics used for antibiogram assay were observed Methicillin, Vancomycin, Clindamycin, Oxacillin and Chloramphenicol (Meth, Va, Cd, Ox and C respectively). The 24 hour incubated plates were observed for the inhibition zones, which were measured by the scale (Hi-media) designed to measure the zone of inhibition diameter. The concentration and measurement zones for different antibiotics for S. aureus samples were assessed as susceptible, intermediate and resistant by referring CLSI chart. These clinical S. aureus isolates were further subjected to Co-culture assay against the fungal isolates (Figure 2).

   

Figure 2: Antibiotic assay conducted for Methicillin, Vancomycin, Clindamycin, Oxacillin and Chloramphenicol against S. aureus clinical isolates (21 plates).

The antimicrobial assay was conducted for 21 clinical isolates obtained from SDM Medical College, Dharwad, Karnataka for Methicillin, Vancomycin, Clindamycin, Oxacillin and Chloramphenicol

Outcome

The resistance pattern of Antibiotic assay against each antibiotic in % of total S. aureus screened (Table 1). Methicillin (90.47%), Chloramphenicol (4.76%), Vancomycin (14.28%),  Oxacillin (80.95%) and Clindamycin (9.5%) found among the 21 isolates against the microorganism S. aureus.

Co-culture assay

The clinical isolates were subjected to co-culture assay. The 21 S. aureus were co-cultured with fungal pure culture. Both the isolates were inoculated in PDA enriched with 1% peptone and incubated at 32 oC. The 3rd-day observation was recorded and the zones of interactions were categorized into the zone of contact, Distance inhibition, Overgrowth inhibition, zone line inhibition (Figure 3). In which the overgrowth is considered as antagonistic property, concerning the Alexander Fleming discovery of Penicillin pattern, this overgrowth inhibition was counted. Interpretation of the co-culture as denoted by the following method.

D=F4-A7, F4-A9, F4-A12, F4-A15, F3-A15 (5)

O=F4-A1, F4-A2, F4-A6, F4-A5, F4-A10, F4-A13, F3-A1 (7)

C=F4-A4, F4-A8, F4-A14, F3-A14 (4)

Z=F4-A3, F4-A7, F4-A11, F4-A16, F3-A16 (5)

Static fermentation of fungi

Five fungi were subjected to static and rotary fermentation to check the yield. The PDB media used with 1% addition of peptone for a protein supplement. Static fermentation was observed for a good yield. The fungi were inoculated in 500 ml conical flask for 200 ml volume to allow the fungal growth width wise. Duplicates were maintained for backup. The rich growth was observed 4th day without contamination of bacteria. Lacto phenol cotton blue staining was performed to observe the pure fungal spores. The Microscopic observation confirmed the pure fungal hyphae structure. The broth was decanted to Eppendorf vial in sterile condition to perform well diffusion method (Figure 4).

                   

Well, the diffusion method

Uniform cotton swabbing of S.aureus was done for Mueller Hinton Agar media plates. The fungal broth of 5,25,40 and 50 μls loaded by micropipettes to 1,2,3 and 4 labelled wells respectively. It is filtered through a 0.2mm sterile filter disk. These plates were incubated at 35-37°. 12th and 24th observation were done and the good size in mm was reported as in the following figure and table (Figure 5 and Table 2 & 3).

Bi-phasic separation

This is bioactivity guided separation performed by using polar and non-polar solvent system combinations. The polar and non-polar solvent extracts with fungal broth subjected to well diffusion method. 75μl of all the sample aliquots were dispensed to the respective wells and DMSO as control. Extract samples in well no. 1 and 4 are aqueous phase and chloroform, 2 and 6 are aqueous phase and ethyl acetate, 3rd and 5th are aqueous phase and Benzene and 7th one was Toluene as aqueous phase was not available. Ethyl acetate extract showed the best activity (Figure 5 & 6 and Table 4). 

 

DISCUSSION

            The work here is being conducted to obtain the understanding of the association between the co-culture assays and the metabolite induction against the MDR bacteria. Co-culture assay being an old concept has not been much attempted to obtain metabolite of biochemical importance and very few reports have been published with regards to metabolite induction4 and in particular for antibiotic induction.8 The simple method of isolation and screening to obtain active association between bacteria and fungi is seen in the present study showing a visible interaction in the form of different activities respectively as a zone of contact, distance inhibition, overgrowth inhibition and zone line inhibition and the same has been reported.9 Further, the broth culture of the active fungal isolate F4 that was later identified as P. polonicum showed the inhibiting activity of growth against the MRSA clinical isolates (S. aureus) and there are no reports of any bioactivity of P. polonicum producing a metabolite effective in growth inhibition of MRSA isolates. The recent study of identification and detail functional characterization of the metabolites produced by P. polonicum has been reported by Yanzhang Wen and co-workers.10 The authors have reported two new compounds apart from already reported seven compounds that have been known to show moderate anti-HCC activity, when tested against HepG2 hepatocellular carcinoma (HCC) cell lines, compounds 4-8. Further, compound 1-3 have effects on increasing GLUT4 translocation and glucose uptake in vitro.10 The metabolite supposed to be part of the bio-active fraction obtained by bi-phasic separation using ethyl acetate: water has been dried and predicted as non-polar compound. This has been sent for molecular identification. The compound reported in this work, isolated from P. polonicum was showing efficient activity against the MRSA clinical isolates has not been used against any MRSA or VRSA clinical isolates and thus we claim this is the first report of a bioactive molecule isolated from P. polonium against clinical MRSA isolates.

CONCLUSION

Thereby we derive by our experimental evidence that using a powerful tool like antibiogram assay, co-culture assay, fermentation, well diffusion method, the bi-phasic separation that can enhance, diverse fungal metabolite production ability of the isolated fungi against the multi-drug resistant S. aureus. It will be the best future solution to the medical issues to act as a pharmacological potential drug by such organisms and which is safer and cost-effective natural source for microbial infection.

Acknowledgement: The authors are thankful to the PG Department of Microbiology and Biotechnology, Karnatak University, Dharwad, Karnataka for providing all the necessary facilities and University Grants Commission, for the award of NFHE fellowship from April 2016-17- March 2021.

Conflict of interest: None

Source of funding: Under NFHE Fellowship

1st Author: carried out all the experiments of the planned work

2nd Author: designed the experiments and methodology of the work

3rd Author: Guided and manuscript prepared for the work which was carried out by the students

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A Study by Mardhiah Kamaruddin et al. entitled "The Pattern of Creatinine Clearance in Gestational and Chronic Hypertension Women from the Third Trimester to 12 Weeks Postpartum" is awarded Best Article for Vol 13 issue 08
A Study by Sarmila G. B. et al. entitled "Study to Compare the Efficacy of Orally Administered Melatonin and Clonidine for Attenuation of Hemodynamic Response During Laryngoscopy and Endotracheal Intubation in Gastrointestinal Surgeries" is awarded Best Article for Vol 13 issue 07
A Study by M. Muthu Uma Maheswari et al. entitled "A Study on C-reactive Protein and Liver Function Tests in Laboratory RT-PCR Positive Covid-19 Patients in a Tertiary Care Centre – A Retrospective Study" is awarded Best Article of Vol 13 issue 06 Special issue Modern approaches for diagnosis of COVID-19 and current status of awareness
A Study by Gainneos PD et al. entitled "A Comparative Evaluation of the Levels of Salivary IgA in HIV Affected Children and the Children of the General Population within the Age Group of 9 – 12 Years – A Cross-Sectional Study" is awarded Best Article of Vol 13 issue 05 Special issue on Recent Advances in Dentistry for better Oral Health
A Study by Alkhansa Mahmoud et al. entitled "mRNA Expression of Somatostatin Receptors (1-5) in MCF7 and MDA-MB231 Breast Cancer Cells" is awarded Best Article of Vol 13 issue 06
A Study by Chen YY and Ghazali SRB entitled "Lifetime Trauma, posttraumatic stress disorder Symptoms and Early Adolescence Risk Factors for Poor Physical Health Outcome Among Malaysian Adolescents" is awarded Best Article of Vol 13 issue 04 Special issue on Current Updates in Plant Biology to Medicine to Healthcare Awareness in Malaysia
A Study by Kumari PM et al. entitled "Study to Evaluate the Adverse Drug Reactions in a Tertiary Care Teaching Hospital in Tamilnadu - A Cross-Sectional Study" is awarded Best Article for Vol 13 issue 05
A Study by Anu et al. entitled "Effectiveness of Cytological Scoring Systems for Evaluation of Breast Lesion Cytology with its Histopathological Correlation" is awarded Best Article of Vol 13 issue 04
A Study by Sharipov R. Kh. et al. entitled "Interaction of Correction of Lipid Peroxidation Disorders with Oxibral" is awarded Best Article of Vol 13 issue 03
A Study by Tarek Elwakil et al. entitled "Led Light Photobiomodulation Effect on Wound Healing Combined with Phenytoin in Mice Model" is awarded Best Article of Vol 13 issue 02
A Study by Mohita Ray et al. entitled "Accuracy of Intra-Operative Frozen Section Consultation of Gastrointestinal Biopsy Samples in Correlation with the Final Histopathological Diagnosis" is awarded Best Article for Vol 13 issue 01
A Study by Badritdinova MN et al. entitled "Peculiarities of a Pain in Patients with Ischemic Heart Disease in the Presence of Individual Combines of the Metabolic Syndrome" is awarded Best Article for Vol 12 issue 24
A Study by Sindhu Priya E S et al. entitled "Neuroprotective activity of Pyrazolone Derivatives Against Paraquat-induced Oxidative Stress and Locomotor Impairment in Drosophila melanogaster" is awarded Best Article for Vol 12 issue 23
A Study by Habiba Suhail et al. entitled "Effect of Majoon Murmakki in Dysmenorrhoea (Usre Tams): A Standard Controlled Clinical Study" is awarded Best Article for Vol 12 issue 22
A Study by Ghaffar UB et al. entitled "Correlation between Height and Foot Length in Saudi Population in Majmaah, Saudi Arabia" is awarded Best Article for Vol 12 issue 21
A Study by Siti Sarah Binti Maidin entitled "Sleep Well: Mobile Application to Address Sleeping Problems" is awarded Best Article for Vol 12 issue 20
A Study by Avijit Singh"Comparison of Post Operative Clinical Outcomes Between “Made in India” TTK Chitra Mechanical Heart Valve Versus St Jude Mechanical Heart Valve in Valve Replacement Surgery" is awarded Best Article for Vol 12 issue 19
A Study by Sonali Banerjee and Mary Mathews N. entitled "Exploring Quality of Life and Perceived Experiences Among Couples Undergoing Fertility Treatment in Western India: A Mixed Methodology" is awarded Best Article for Vol 12 issue 18
A Study by Jabbar Desai et al. entitled "Prevalence of Obstructive Airway Disease in Patients with Ischemic Heart Disease and Hypertension" is awarded Best Article for Vol 12 issue 17
A Study by Juna Byun et al. entitled "Study on Difference in Coronavirus-19 Related Anxiety between Face-to-face and Non-face-to-face Classes among University Students in South Korea" is awarded Best Article for Vol 12 issue 16
A Study by Sudha Ramachandra & Vinay Chavan entitled "Enhanced-Hybrid-Age Layered Population Structure (E-Hybrid-ALPS): A Genetic Algorithm with Adaptive Crossover for Molecular Docking Studies of Drug Discovery Process" is awarded Best article for Vol 12 issue 15
A Study by Varsha M. Shindhe et al. entitled "A Study on Effect of Smokeless Tobacco on Pulmonary Function Tests in Class IV Workers of USM-KLE (Universiti Sains Malaysia-Karnataka Lingayat Education Society) International Medical Programme, Belagavi" is awarded Best article of Vol 12 issue 14, July 2020
A study by Amruta Choudhary et al. entitled "Family Planning Knowledge, Attitude and Practice Among Women of Reproductive Age from Rural Area of Central India" is awarded Best Article for special issue "Modern Therapeutics Applications"
A study by Raunak Das entitled "Study of Cardiovascular Dysfunctions in Interstitial Lung Diseas epatients by Correlating the Levels of Serum NT PRO BNP and Microalbuminuria (Biomarkers of Cardiovascular Dysfunction) with Echocardiographic, Bronchoscopic and HighResolution Computed Tomography Findings of These ILD Patients" is awarded Best Article of Vol 12 issue 13 
A Study by Kannamani Ramasamy et al. entitled "COVID-19 Situation at Chennai City – Forecasting for the Better Pandemic Management" is awarded best article for  Vol 12 issue 12
A Study by Muhammet Lutfi SELCUK and Fatma entitled "Distinction of Gray and White Matter for Some Histological Staining Methods in New Zealand Rabbit's Brain" is awarded best article for  Vol 12 issue 11
A Study by Anamul Haq et al. entitled "Etiology of Abnormal Uterine Bleeding in Adolescents – Emphasis Upon Polycystic Ovarian Syndrome" is awarded best article for  Vol 12 issue 10
A Study by entitled "Estimation of Reference Interval of Serum Progesterone During Three Trimesters of Normal Pregnancy in a Tertiary Care Hospital of Kolkata" is awarded best article for  Vol 12 issue 09
A Study by Ilona Gracie De Souza & Pavan Kumar G. entitled "Effect of Releasing Myofascial Chain in Patients with Patellofemoral Pain Syndrome - A Randomized Clinical Trial" is awarded best article for  Vol 12 issue 08
A Study by Virendra Atam et. al. entitled "Clinical Profile and Short - Term Mortality Predictors in Acute Stroke with Emphasis on Stress Hyperglycemia and THRIVE Score : An Observational Study" is awarded best article for  Vol 12 issue 07
A Study by K. Krupashree et. al. entitled "Protective Effects of Picrorhizakurroa Against Fumonisin B1 Induced Hepatotoxicity in Mice" is awarded best article for issue Vol 10 issue 20
A study by Mithun K.P. et al "Larvicidal Activity of Crude Solanum Nigrum Leaf and Berries Extract Against Dengue Vector-Aedesaegypti" is awarded Best Article for Vol 10 issue 14 of IJCRR
A study by Asha Menon "Women in Child Care and Early Education: Truly Nontraditional Work" is awarded Best Article for Vol 10 issue 13
A study by Deep J. M. "Prevalence of Molar-Incisor Hypomineralization in 7-13 Years Old Children of Biratnagar, Nepal: A Cross Sectional Study" is awarded Best Article for Vol 10 issue 11 of IJCRR
A review by Chitra et al to analyse relation between Obesity and Type 2 diabetes is awarded 'Best Article' for Vol 10 issue 10 by IJCRR. 
A study by Karanpreet et al "Pregnancy Induced Hypertension: A Study on Its Multisystem Involvement" is given Best Paper Award for Vol 10 issue 09

List of Awardees

A Study by Ese Anibor et al. "Evaluation of Temporomandibular Joint Disorders Among Delta State University Students in Abraka, Nigeria" from Vol 13 issue 16 received Emerging Researcher Award


A Study by Alkhansa Mahmoud et al. entitled "mRNA Expression of Somatostatin Receptors (1-5) in MCF7 and MDA-MB231 Breast Cancer Cells" from Vol 13 issue 06 received Emerging Researcher Award


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International Journal of Current Research and Review (IJCRR) provides platform for researchers to publish and discuss their original research and review work. IJCRR can not be held responsible for views, opinions and written statements of researchers published in this journal

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