Chemical, Biological & Pharmacological Investigations of Different Fractional Extracts of Passiflora edulis Sims. (Family: Passifloraceae)

Research Article | DOI: https://doi.org/10.31579/2693-7247/062

Chemical, Biological & Pharmacological Investigations of Different Fractional Extracts of Passiflora edulis Sims. (Family: Passifloraceae)

  • Shahidul Islam 1*
  • Rupa Dev 2

1, 2 Department of Pharmacy, University of Science and Technology Chittagong (USTC) Bangladesh.

*Corresponding Author: : Shahidul Islam, Assistant Professor, Department of Pharmacy, University of Science & Technology Chittagong, Bangladesh.

Citation: Rupa Dev and Md. Shahidul Islam (2022) Chemical, Biological & Pharmacological Investigations of Different Fractional Extracts of Passiflora edulis Sims. (Family: Passifloraceae). J. Pharmaceutics and Pharmacology Research, 5(3); DOI:10.31579/2693-7247/062

Copyright: © 2022 Shahidul Islam, This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: 28 January 2022 | Accepted: 15 February 2022 | Published: 06 March 2022

Keywords: passiflora edulis sims, antimicrobial activity, antibacterial activity

Abstract

In the evaluation of antimicrobial activity, antibacterial activity of ethanol, chloroform & n-hexane extracts of P. edulis was tested against 10 bacteria at concentrations of 500µg/disc. Standard antibiotic disc of Azithromycin (30 µg/disc) was used for the comparison. The extracts showed no activity against gm (+ve) & gm (-ve) bacteria at a concentration of 500 µg/disc. Antifungal activity of ethanol, chloroform & n-hexane extracts of P. edulis was tested against 7 fungi at concentrations of 500µg/disc. Standard antifungal disc of Fluconazole (30 µg/disc) was used for the comparison. In antifungal screening the chloroform extract showed activity against A. fumigatus (15nm). In DPPH scavenging assay the ethanol extract of leaves showed maximum % inhibition of 73.41% at 100μg/ml while the standard ascorbic acid showed % inhibition of 82.14% at the same concentration. The DPPH radical scavenging activity was increased by increasing the concentration of the sample extract. The extract exhibited considerable DPPH free radical scavenging activity as indicated by their IC50 values which indicate the potency of scavenging activity. Standard ascorbic acid was found to have an IC50 of 1.66μg/ml. In comparison to standard ascorbic acid, ethanol extract of P. edulis showed of an IC50 of 2.57μg/ml. In the evaluation of anti-inflammatory activity by albumin denaturation assay method, the percent inhibition of protein denaturation in the experiment of ethanol extract of leaves of P. edulis was found to be 55.454% at 500μg/ml, 49.818% at 250μg/ml and 41.818% at 125μg/ml. The extract possesses significant activity comparable with that of the standard acetyl salicylic acid which showed percent inhibition of protein denaturation of 91.945%, 88.181% and 45.454% in the same concentration range. In this analgesic activity study using Eddy’s hot plate method in mice, the ethanol extract of P. edulis showed mild analgesic activity. After 30 minutes of administration of standard drug (Diclofenac 9 mg/kg), mean latency was found to be 17.34sec. While the extract at concentration of 400 mg/kg exposed mean latency of 6.67sec. Respectively. During antipyretic activity by Brewer’s yeast induced pyrexia method in mice, the ethanol extract of leaves of P. edulis produced moderate antipyretic activity. In this test, the extract reduced temperature from 102.4°F to 99.84°F (p=0.151188), 98.74°F (p=0.070485), 98.6℉ (p=0.056108), 98.37℉ (p=0.039072) and 98.27°F (p=0.110528) in 1st, 2nd, 3rd, 4th and 5th hour respectively and caused maximum reduction of temperature in 1st hour. During antidiarrhoeal activity by castor oil induced test in mice, the ethanol extract of P. edulis produced moderate antidiarrheal episode. The latent period and the total diarrheic faces were found to be 0.978 hr & 8.34 at 500 mg/kg for P. edulis as compared to standard (Loperamide 3mg/kg) 2.845 hr & 5.34.

In the sedative and hypnotic activity by using open field box, hole cross box and swing Test method on swiss albino mice ethanol extract of P. edulis showed moderate sedative and hypnotic activity.

During the open field test, squares crossed by the group receiving standard Diazepam and ethanol extract of leaves of P. edulis were 63 and 84.34 respectively. During the swing test, number of swings observed after administration of standard Diazepam and ethanol extract of leaves of P. edulis were 3.67 and 8.67 respectively. During diuretic activity by using the Lipschitz test in mice, ethanol, n-hexane and chloroform extracts of P. edulis (500mg/kg body wt.) showed no activity compared to standard drug Furosemide (20mg/kg body wt.).

Introduction

biodiversity of nature. Through natural ecosystem function and stability biodiversity provides humankind huge direct benefits and indirect essential services. It comprises about 5 to more than 50 millions of species of biodiversity 270,000 are plant species [1]. Chemical constituents such as tannins, flavonoids, steroids, saponins, glycosides, phenolics, terpenes, alkaloids, waxes, essential oils, carbohydrates, amino acids, proteins etc. are contained in plants. About 74% of drugs in the USA are based on plants and in developing countries a large portion of the world population depends directly on the traditional medicine system for a variety of diseases. In the world, approximately 20% of the plants have been used for pharmacological and biological screening. In the original system of medicine in India, several thousands of plants are used medicinally, mainly as herbal preparations. The sources of very potent and powerful drugs which have stood the test of time and modern chemistry have not been able to replace most of them [2]. For all time, man has use plants and herbs to treat disease and heal injuries. Now-a-days, to explain some of the medicinal phenomena associated with traditional herbal remedies scientific studies are began and renewed interest has been shown. Governments and the scientific and medical communities have created awareness about the importance of medicinal plants in health care systems in many developing countries [3]. Since ancient times, plants have also been used in the production of stimulant beverages (e.g. tea, coffee, cocoa, and cola) and inebriants or intoxicants (e.g., wine, beer, and kava) in many cultures and till today this approach continues. In the 9th century, coffee (Coffea arabica) was initially cultivated in Yemen but tea (Thea sinensis) was first addicted in ancient China for commercial purposes. Bitter beverages containing raw cocoa beans (Theobroma cacao), red peppers, and various herbs are consumed by dignity using the Aztec. At the present time, tea, coffee, and cocoa are important property and their utilization has spread worldwide. Methylated xanthine derivatives, namely caffeine, theophylline, and theobromine, are the active components of these stimulants and these are the main constituents of coffee, tea, and cocoa, respectively [4]. To discover all medicinal plants that exist in the world, the World Health Organization made a challenge several years ago. Since botanical confirmation was not attempted it was admitted that the collection of names of medicinal plants certainly contained many replicates. Additional, excluding data indicating what the plants were used for, the list including more than 20,000 species only provided Latin binomials and the countries where the plants were used [5].

Materials and Methods

Phytochemical analysis 

Chemical tests for the screening and identification of bioactive chemical constituents in the medicinal plants under study were carried out in extracts as well as powder specimens using the standard procedures as described below:

Phytochemical studies in ethanol extract of leaves of P. adulis

The results of the phytochemical investigation of the ethanol extract of leaves of P. edulis has shown a remarkable variation in the presence the above studied phytochemical compounds in the studied taxa. The study revealed that the ethanol extract of leaves of P. edulis are showing maximum presence of alkaloids, glycosides, flevonoids and phenols in ethanol solvent extracts.

Evaluation of Antimicrobial Activity

Experimental design (6)

The assigned assay method is based on the ability of antibiotics to diffuse from a confined source through the gel media and create a concentration gradient. If the agar seeded or streaked with a sensitive organism, a zone of inhibition will result. In this method, a definite amount of the test sample was dissolved in definite amount of solvent to give solution of given concentration (μg/μl). Then the sterile filter paper discs having 5mm in diameter were impregnated aseptically with known amount of the test substances and dried. Such discs and standard drugs discs were placed on plate containing a suitable medium seeded with the test organisms. These plates were kept at low temperature (4°C) for 24h to allow maximum diffusion. The dried discs absorb water from the agar medium and the material under test was dissolved. The plates for antibacterial test were then kept in an incubator (37°C) for 24h and the plates for antifungal test were kept at room temperature for 72 hours to allow sufficient growth of organisms. If the test material has antimicrobial activity, it will inhibit the growth of microorganism having a clear distinct zone called "Zone of Inhibition" [7]. The antimicrobial activity of the test agent was determined by measuring the diameter of the zone of inhibition in terms of mm.

Evaluation of Antioxidant Activity

Determination of quantitative antioxidant activity

Quantitative antioxidant activity was determined by determining the half maximal inhibitory concentration (IC50) of ethanol extract of P. edulis graphically in comparison to standard ascorbic acid (8).

% scavenging of the DPPH free radical was measured by using the following equation: 

equation

Evaluation of Anti-inflammatory Activity

The anti-inflammatory activity was determined by calculating the percent inhibition of protein denaturation. The percent inhibition of protein denaturation was calculated by using the following formula:

 

equation

The percent mean inhibition protein denaturation of ethanol extract of leaves of P. edulis was calculated and noted down in the following table and results were graphically presented and compared with the standard drug Acetyl salicylic acid (9).

Evaluation of Analgesic Activity

Experimental design (10)

In this experiment, the analgesic activity of ethanol extract of leaves of P. edulis was investigated in swiss albino mice, as per the method described by Eddy and Leimbach. Overnight fasted mice were placed individually on a thermostatically controlled heated beaker and the reaction time of each mouse was recorded. The temperature of the hot plate was maintained at 45 ± 1°C. The reaction time was considered as the time elapsed between placing of the mouse on the hot plate and appearance of signs of acute discomfort, characterized by flicking or licking of the hind paw, forepaw or jumping in an attempt to escape from the pain. The mice showing initial reaction time of 11sec or less were selected for this study. The animals were then, divided into control, standard and one test group containing three mice in each group. Control group received vehicle (1% Tween-80 in water) at a dose of 10ml/kg body weight orally. The standard group received Diclofenac-Na at the dose of 9mg/kg body weight intraperitoneally; test group received the ethanol extract of P. edulis leaves at the dose of 400 mg/kg body weight orally. Thereafter, the initial latent reaction time of each mouse in heated beaker was recorded on “0” minute (just after treating with respective substances) and finally 30 minutes later the latent reaction time of each mouse was recorded.

Evaluation of Antipyretic Activity

This study was conducted by slightly modifying the method described by Adams (11). Animals of either sex were divided into control, standard and one test group containing 3 mice in each group for this experiment. The normal body temperature of each mouse was measured from rectum at one hour interval on a thermometer and recorded. The antipyretic activities of extract were evaluated using Brewer’s yeast induced pyrexia in Swiss albino mice. Before yeast injection, rectal temperature of mice were recorded and after recording animals were given subcutaneous injection of 10ml/kg of 10 % w/v yeast solution for elevation of body temperature of mice. At the 24hrs after yeast injection, the vehicle, standard drug and extract were administered into different groups. Distilled water at dose of 10ml/kg was administered orally to the control groups of animals and Paracetamol at dose of 150mg/kg was administered orally to standard group of animals. The ethanol extract of P. edulis plant was administered orally at a dose of 500mg/kg of body weight. Rectal temperature was recorded by digital thermometer at 1st, 2nd, 3rd, 4th, and 5th hours after drug administration.

Evaluation of Antidiarrheal Activity

Experimental design (12)

The animals were all screened initially by giving 0.4 ml of castor oil and only those showing diarrhea were selected for the final experiment. The animals were then, divided into control, standard and one test group containing three mice in each group. Control group received vehicle (1% Tween-80 in water) at a dose of 10ml/kg body weight orally. The standard group received Loperamide at the dose of 3mg/kg orally; test group received the ethanol extract of P. edulis at the dose of 500 mg/kg body weight orally. Each animal is placed in an individual cage, the floor of which was lined with blotting paper.  The floor lining was changed every hour. Diarrhea was induced by oral administration of 0.4 ml castor oil to each mouse, 30 minutes after the above treatments. During the observation period (4hrs), the total latency periods (first diarrheal stool after the administration of castor oil) and the number of diarrheic feces excreted by the animals were recorded. A numerical score based on stool consistency was assigned (normal stool =1 and watery stool = 2).

Pharmacological Evaluation of Sedative and Hypnotic Activities

Preparation of samples for the test, standard and control groups (13)

In the present work, 500mg/kg dose was selected for plant species and for this 3mg ethanol extract of leaves of   P. edulis was dissolved in 1.2ml of distilled water for three mice.

For standard, 4mg/kg dose of Diazepam was selected. For this 0.08mg Diazepam was dissolved in 1.2ml of distilled water for three mice and for control group 10ml/kg dose of distilled water was selected.

Experimental design

Table 1: Test materials used in the evaluation of sedative and hypnotic activity

 

Results and Discussions

Determination of the antifungal activity

The antifungal activity of the ethanol, n-hexane and chloroform extracts of leaves of P. edulis were determined by covering the zone of inhibition (mm) of the 10 bacteria with the percent zone of inhibition caused by the test groups in comparison to the standard Fluconazole and control groups

                                         

figure 1: Antifungal activities of different extracts of P. edulis Sims. & standard 

Results of the antifungal activity

Antifungal activity of ethanol, chloroform & n-hexane extracts of P. edulis was tested against fungi at concentrations of 500µg/disc. Standard antifungal disc of Fluconazole (30 µg/disc) was used for the comparison. In antifungal screening the chloroform extract showed activity against A. fumigatus (15nm). 

Quantitative antioxidant activity

Figure: 2:Antioxidant activity & IC50 calculation of ethanol extract of P. edulis Sims.

IC50 calculation from graph

Table

Result of quantitative antioxidant assay

In DPPH scavenging assay the ethanol extract of leaves showed maximum % inhibition of 73.41% at 100μg/ml while the standard ascorbic acid showed % inhibition of 82.14% at the same concentration (Table 6.1) The DPPH radical scavenging activity was increased by increasing the concentration of the sample extract. The extract exhibited considerable DPPH free radical scavenging activity as indicated by their IC50 values which indicate the potency of scavenging activity. Standard ascorbic acid was found to have an IC50 of 1.66μg/ml. In comparison to standard ascorbic acid, ethanol extract of P. edulis showed of an IC50 of 2.57μg/ml.

Anti-inflammatory activity

Figure 3: Anti inflammatory activity of ethanol extract of P. edulis Sims

Results of anti-inflammatory activity

In the present investigation, the percent inhibition of protein denaturation in the experiment of ethanol extract of leaves of P. edulis was found to be 55.454% at 500μg/ml, 49.818% at 250μg/ml and 41.818% at 125μg/ml (Table 7.1). The extract possesses significant activity comparable with that of the standard acetyl salicylic acid which showed percent inhibition of protein denaturation of 91.945%, 88.181% and 45.454% in the same concentration range.

Analgesic activity:

Table 2: Test materials used in the evaluation of analgesic activity

Determination of analgesic activity

Analgesic activity was determined by evaluating the latent period by recording the reaction time of the each mouse of the test group on a thermostatically controlled heated beaker jumping in an attempt to escape from the pain in comparison to the control and standard drug Diclofenac-Na.

Table 3: Effect of ethanol extract of P. edulis on the latent period of Eddy’s hot plate test in mice
Table 4: Results of the treatment groups in comparison to the control latency period

 

Results of analgesic activity

The ethanol extract of P. edulis showed significant analgesic activity. After 30 minutes of administration of standard drug (Diclofenac-Na 9 mg/kg), mean latency was found to be 17.34sec. while the extract at 

concentration of 400 mg/kg exposed mean latency of 6.67sec. respectively.

Antipyretic activity

Table 5: Test materials used in the evaluation of antipyretic activity

Determination of antipyretic activity

Antipyretic activity was determined by determining the rectal temperature of the mice of the test group in comparison to the control and standard drug Paracetamol.

Table 6: Effect of ethanol extract of leaves of P. edulis on the temperature of Brewer’s yeast induced pyrexia in mice
Table 7: Effect of ethanol extract of leaves of P. edulis on the temperature (After 5 hours) of Brewer’s yeast induced pyrexia in mice
Table 8: Results of standard and test groups in comparison to control group

Results of antipyretic activity

During antipyretic activity by Brewer’s yeast induced pyrexia method in mice, the ethanol extract of leaves of P. edulis produced moderate antipyretic activity (Table 9.1, 9.2 & Table 9.3). In this test, the extract reduced temperature from 102.4°F to 99.84°F (p>0.05), 98.74°F (p>0.05), 98.6°F  (p>0.05), 98.37°F (p<0>0.05) in 1st, 2nd, 3rd, 4th and 5th hour respectively and caused maximum reduction of temperature in 1st hour. 

Antidiarreal activity

Table 9: Test materials used in the evaluation of antidiarrhoeal activity

Determination of anti-diarrheal activity

Antidiarrheal activity was determined by evaluating the latency period and diarrheal frequency by counting the feces number of the test group in comparison to the control and standard drug Loperamide.

Table 10: Effect of ethanol extract of leaves of P. edulis Sims. on the latent period of castor oil induced diarrheal episodes in mice
Table 11: Results of the treatment groups in comparison to the control latency period
Table 12: Effect of ethanol extract of leaves of P. edulis Sims. on castor oil (0.4ml each mouse at 240min.) induced diarrhea in mice
Table 13: Results of the treatment groups in comparison to the control 4hrs defecation period

*[TNF = Total number of faeces (MD×3 ± SE)], MD= Mean defecation, SE= Standard error]

Results of antidiarrheal activity

During antidiarrheal activity by castor oil induced test in mice, the ethanol extract of P. edulis produced moderate antidiarrheal episode. The latent period and the total diarrheic faces were found to be 0.978 hr & 8.34 at 500 mg/kg for P. edulis as compared to standard (Loperamide 3mg/kg) 2.845 hr & 5.34.

Sedative and hypnotic activity

Table 14: Effect of ethanol extract of leaves of P. edulis Sims. on open field test in mice
Table 15: Sedative and hypnotic activity by open-field test
Table 16: Effect of ethanol extract of leaves of P. edulis Sims. on swing test in mice
Table 17: Sedative and hypnotic activity by swing test

Results of sedative and hypnotic activity

In open field box, hole cross box and swing test method on swiss albino mice ethanol extract of P. edulis showed moderate sedative and hypnotic activity.During the open field test, squares crossed by the group receiving standard Diazepam and ethanol extract of leaves of P. edulis were 63 and 84.34 respectively.During the swing test, number of swings observed after administration of standard Diazepam and ethanol extract of leaves of P. edulis were 3.67 and 8.67 respectively.

Conclusion

The results of the phytochemical investigation of the ethanol extract of leaves of P. edulis has shown a remarkable variation in the presence the above studied phytochemical compounds in the studied taxa. The study revealed that the ethanol extract of leaves of P. edulis are showing maximum presence of alkaloids, glycosides, flavonoids and phenols in ethanol solvent extracts. Pathogenic microbial infectious agents exhibit the increasing failure of chemotherapeutics, severe adverse effects with increase doses and repeated use of drugs, problems with multiple dosage regimens and antibiotic resistance. All over the world, for their possible activity, appearance of new diseases has led to the screening of medicinal plants. A large quantity of pharmaceutical raw materials including medicinal plants and semi-processed plant produce drugs and medicines are imported in Bangladesh. If the manufacturers, to satisfy their needs, utilize the native medicinal plants or their semi processed products huge foreign exchanges can be saved.

References

Clearly Auctoresonline and particularly Psychology and Mental Health Care Journal is dedicated to improving health care services for individuals and populations. The editorial boards' ability to efficiently recognize and share the global importance of health literacy with a variety of stakeholders. Auctoresonline publishing platform can be used to facilitate of optimal client-based services and should be added to health care professionals' repertoire of evidence-based health care resources.

img

Virginia E. Koenig

Journal of Clinical Cardiology and Cardiovascular Intervention The submission and review process was adequate. However I think that the publication total value should have been enlightened in early fases. Thank you for all.

img

Delcio G Silva Junior

Journal of Women Health Care and Issues By the present mail, I want to say thank to you and tour colleagues for facilitating my published article. Specially thank you for the peer review process, support from the editorial office. I appreciate positively the quality of your journal.

img

Ziemlé Clément Méda

Journal of Clinical Research and Reports I would be very delighted to submit my testimonial regarding the reviewer board and the editorial office. The reviewer board were accurate and helpful regarding any modifications for my manuscript. And the editorial office were very helpful and supportive in contacting and monitoring with any update and offering help. It was my pleasure to contribute with your promising Journal and I am looking forward for more collaboration.

img

Mina Sherif Soliman Georgy

We would like to thank the Journal of Thoracic Disease and Cardiothoracic Surgery because of the services they provided us for our articles. The peer-review process was done in a very excellent time manner, and the opinions of the reviewers helped us to improve our manuscript further. The editorial office had an outstanding correspondence with us and guided us in many ways. During a hard time of the pandemic that is affecting every one of us tremendously, the editorial office helped us make everything easier for publishing scientific work. Hope for a more scientific relationship with your Journal.

img

Layla Shojaie

The peer-review process which consisted high quality queries on the paper. I did answer six reviewers’ questions and comments before the paper was accepted. The support from the editorial office is excellent.

img

Sing-yung Wu

Journal of Neuroscience and Neurological Surgery. I had the experience of publishing a research article recently. The whole process was simple from submission to publication. The reviewers made specific and valuable recommendations and corrections that improved the quality of my publication. I strongly recommend this Journal.

img

Orlando Villarreal

Dr. Katarzyna Byczkowska My testimonial covering: "The peer review process is quick and effective. The support from the editorial office is very professional and friendly. Quality of the Clinical Cardiology and Cardiovascular Interventions is scientific and publishes ground-breaking research on cardiology that is useful for other professionals in the field.

img

Katarzyna Byczkowska

Thank you most sincerely, with regard to the support you have given in relation to the reviewing process and the processing of my article entitled "Large Cell Neuroendocrine Carcinoma of The Prostate Gland: A Review and Update" for publication in your esteemed Journal, Journal of Cancer Research and Cellular Therapeutics". The editorial team has been very supportive.

img

Anthony Kodzo-Grey Venyo

Testimony of Journal of Clinical Otorhinolaryngology: work with your Reviews has been a educational and constructive experience. The editorial office were very helpful and supportive. It was a pleasure to contribute to your Journal.

img

Pedro Marques Gomes

Dr. Bernard Terkimbi Utoo, I am happy to publish my scientific work in Journal of Women Health Care and Issues (JWHCI). The manuscript submission was seamless and peer review process was top notch. I was amazed that 4 reviewers worked on the manuscript which made it a highly technical, standard and excellent quality paper. I appreciate the format and consideration for the APC as well as the speed of publication. It is my pleasure to continue with this scientific relationship with the esteem JWHCI.

img

Bernard Terkimbi Utoo

This is an acknowledgment for peer reviewers, editorial board of Journal of Clinical Research and Reports. They show a lot of consideration for us as publishers for our research article “Evaluation of the different factors associated with side effects of COVID-19 vaccination on medical students, Mutah university, Al-Karak, Jordan”, in a very professional and easy way. This journal is one of outstanding medical journal.

img

Prof Sherif W Mansour

Dear Hao Jiang, to Journal of Nutrition and Food Processing We greatly appreciate the efficient, professional and rapid processing of our paper by your team. If there is anything else we should do, please do not hesitate to let us know. On behalf of my co-authors, we would like to express our great appreciation to editor and reviewers.

img

Hao Jiang

As an author who has recently published in the journal "Brain and Neurological Disorders". I am delighted to provide a testimonial on the peer review process, editorial office support, and the overall quality of the journal. The peer review process at Brain and Neurological Disorders is rigorous and meticulous, ensuring that only high-quality, evidence-based research is published. The reviewers are experts in their fields, and their comments and suggestions were constructive and helped improve the quality of my manuscript. The review process was timely and efficient, with clear communication from the editorial office at each stage. The support from the editorial office was exceptional throughout the entire process. The editorial staff was responsive, professional, and always willing to help. They provided valuable guidance on formatting, structure, and ethical considerations, making the submission process seamless. Moreover, they kept me informed about the status of my manuscript and provided timely updates, which made the process less stressful. The journal Brain and Neurological Disorders is of the highest quality, with a strong focus on publishing cutting-edge research in the field of neurology. The articles published in this journal are well-researched, rigorously peer-reviewed, and written by experts in the field. The journal maintains high standards, ensuring that readers are provided with the most up-to-date and reliable information on brain and neurological disorders. In conclusion, I had a wonderful experience publishing in Brain and Neurological Disorders. The peer review process was thorough, the editorial office provided exceptional support, and the journal's quality is second to none. I would highly recommend this journal to any researcher working in the field of neurology and brain disorders.

img

Dr Shiming Tang

Dear Agrippa Hilda, Journal of Neuroscience and Neurological Surgery, Editorial Coordinator, I trust this message finds you well. I want to extend my appreciation for considering my article for publication in your esteemed journal. I am pleased to provide a testimonial regarding the peer review process and the support received from your editorial office. The peer review process for my paper was carried out in a highly professional and thorough manner. The feedback and comments provided by the authors were constructive and very useful in improving the quality of the manuscript. This rigorous assessment process undoubtedly contributes to the high standards maintained by your journal.

img

Raed Mualem

International Journal of Clinical Case Reports and Reviews. I strongly recommend to consider submitting your work to this high-quality journal. The support and availability of the Editorial staff is outstanding and the review process was both efficient and rigorous.

img

Andreas Filippaios

Thank you very much for publishing my Research Article titled “Comparing Treatment Outcome Of Allergic Rhinitis Patients After Using Fluticasone Nasal Spray And Nasal Douching" in the Journal of Clinical Otorhinolaryngology. As Medical Professionals we are immensely benefited from study of various informative Articles and Papers published in this high quality Journal. I look forward to enriching my knowledge by regular study of the Journal and contribute my future work in the field of ENT through the Journal for use by the medical fraternity. The support from the Editorial office was excellent and very prompt. I also welcome the comments received from the readers of my Research Article.

img

Dr Suramya Dhamija

Dear Erica Kelsey, Editorial Coordinator of Cancer Research and Cellular Therapeutics Our team is very satisfied with the processing of our paper by your journal. That was fast, efficient, rigorous, but without unnecessary complications. We appreciated the very short time between the submission of the paper and its publication on line on your site.

img

Bruno Chauffert

I am very glad to say that the peer review process is very successful and fast and support from the Editorial Office. Therefore, I would like to continue our scientific relationship for a long time. And I especially thank you for your kindly attention towards my article. Have a good day!

img

Baheci Selen

"We recently published an article entitled “Influence of beta-Cyclodextrins upon the Degradation of Carbofuran Derivatives under Alkaline Conditions" in the Journal of “Pesticides and Biofertilizers” to show that the cyclodextrins protect the carbamates increasing their half-life time in the presence of basic conditions This will be very helpful to understand carbofuran behaviour in the analytical, agro-environmental and food areas. We greatly appreciated the interaction with the editor and the editorial team; we were particularly well accompanied during the course of the revision process, since all various steps towards publication were short and without delay".

img

Jesus Simal-Gandara

I would like to express my gratitude towards you process of article review and submission. I found this to be very fair and expedient. Your follow up has been excellent. I have many publications in national and international journal and your process has been one of the best so far. Keep up the great work.

img

Douglas Miyazaki

We are grateful for this opportunity to provide a glowing recommendation to the Journal of Psychiatry and Psychotherapy. We found that the editorial team were very supportive, helpful, kept us abreast of timelines and over all very professional in nature. The peer review process was rigorous, efficient and constructive that really enhanced our article submission. The experience with this journal remains one of our best ever and we look forward to providing future submissions in the near future.

img

Dr Griffith

I am very pleased to serve as EBM of the journal, I hope many years of my experience in stem cells can help the journal from one way or another. As we know, stem cells hold great potential for regenerative medicine, which are mostly used to promote the repair response of diseased, dysfunctional or injured tissue using stem cells or their derivatives. I think Stem Cell Research and Therapeutics International is a great platform to publish and share the understanding towards the biology and translational or clinical application of stem cells.

img

Dr Tong Ming Liu

I would like to give my testimony in the support I have got by the peer review process and to support the editorial office where they were of asset to support young author like me to be encouraged to publish their work in your respected journal and globalize and share knowledge across the globe. I really give my great gratitude to your journal and the peer review including the editorial office.

img

Husain Taha Radhi

I am delighted to publish our manuscript entitled "A Perspective on Cocaine Induced Stroke - Its Mechanisms and Management" in the Journal of Neuroscience and Neurological Surgery. The peer review process, support from the editorial office, and quality of the journal are excellent. The manuscripts published are of high quality and of excellent scientific value. I recommend this journal very much to colleagues.

img

S Munshi

Dr.Tania Muñoz, My experience as researcher and author of a review article in The Journal Clinical Cardiology and Interventions has been very enriching and stimulating. The editorial team is excellent, performs its work with absolute responsibility and delivery. They are proactive, dynamic and receptive to all proposals. Supporting at all times the vast universe of authors who choose them as an option for publication. The team of review specialists, members of the editorial board, are brilliant professionals, with remarkable performance in medical research and scientific methodology. Together they form a frontline team that consolidates the JCCI as a magnificent option for the publication and review of high-level medical articles and broad collective interest. I am honored to be able to share my review article and open to receive all your comments.

img

Tania Munoz

“The peer review process of JPMHC is quick and effective. Authors are benefited by good and professional reviewers with huge experience in the field of psychology and mental health. The support from the editorial office is very professional. People to contact to are friendly and happy to help and assist any query authors might have. Quality of the Journal is scientific and publishes ground-breaking research on mental health that is useful for other professionals in the field”.

img

George Varvatsoulias

Dear editorial department: On behalf of our team, I hereby certify the reliability and superiority of the International Journal of Clinical Case Reports and Reviews in the peer review process, editorial support, and journal quality. Firstly, the peer review process of the International Journal of Clinical Case Reports and Reviews is rigorous, fair, transparent, fast, and of high quality. The editorial department invites experts from relevant fields as anonymous reviewers to review all submitted manuscripts. These experts have rich academic backgrounds and experience, and can accurately evaluate the academic quality, originality, and suitability of manuscripts. The editorial department is committed to ensuring the rigor of the peer review process, while also making every effort to ensure a fast review cycle to meet the needs of authors and the academic community. Secondly, the editorial team of the International Journal of Clinical Case Reports and Reviews is composed of a group of senior scholars and professionals with rich experience and professional knowledge in related fields. The editorial department is committed to assisting authors in improving their manuscripts, ensuring their academic accuracy, clarity, and completeness. Editors actively collaborate with authors, providing useful suggestions and feedback to promote the improvement and development of the manuscript. We believe that the support of the editorial department is one of the key factors in ensuring the quality of the journal. Finally, the International Journal of Clinical Case Reports and Reviews is renowned for its high- quality articles and strict academic standards. The editorial department is committed to publishing innovative and academically valuable research results to promote the development and progress of related fields. The International Journal of Clinical Case Reports and Reviews is reasonably priced and ensures excellent service and quality ratio, allowing authors to obtain high-level academic publishing opportunities in an affordable manner. I hereby solemnly declare that the International Journal of Clinical Case Reports and Reviews has a high level of credibility and superiority in terms of peer review process, editorial support, reasonable fees, and journal quality. Sincerely, Rui Tao.

img

Rui Tao

Clinical Cardiology and Cardiovascular Interventions I testity the covering of the peer review process, support from the editorial office, and quality of the journal.

img

Khurram Arshad

Clinical Cardiology and Cardiovascular Interventions, we deeply appreciate the interest shown in our work and its publication. It has been a true pleasure to collaborate with you. The peer review process, as well as the support provided by the editorial office, have been exceptional, and the quality of the journal is very high, which was a determining factor in our decision to publish with you.

img

Gomez Barriga Maria Dolores

The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews journal clinically in the future time.

img

Lin Shaw Chin

Clinical Cardiology and Cardiovascular Interventions, I would like to express my sincerest gratitude for the trust placed in our team for the publication in your journal. It has been a true pleasure to collaborate with you on this project. I am pleased to inform you that both the peer review process and the attention from the editorial coordination have been excellent. Your team has worked with dedication and professionalism to ensure that your publication meets the highest standards of quality. We are confident that this collaboration will result in mutual success, and we are eager to see the fruits of this shared effort.

img

Maria Dolores Gomez Barriga

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, I hope this message finds you well. I want to express my utmost gratitude for your excellent work and for the dedication and speed in the publication process of my article titled "Navigating Innovation: Qualitative Insights on Using Technology for Health Education in Acute Coronary Syndrome Patients." I am very satisfied with the peer review process, the support from the editorial office, and the quality of the journal. I hope we can maintain our scientific relationship in the long term.

img

Dr Maria Dolores Gomez Barriga

Dear Monica Gissare, - Editorial Coordinator of Nutrition and Food Processing. ¨My testimony with you is truly professional, with a positive response regarding the follow-up of the article and its review, you took into account my qualities and the importance of the topic¨.

img

Dr Maria Regina Penchyna Nieto

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, The review process for the article “The Handling of Anti-aggregants and Anticoagulants in the Oncologic Heart Patient Submitted to Surgery” was extremely rigorous and detailed. From the initial submission to the final acceptance, the editorial team at the “Journal of Clinical Cardiology and Cardiovascular Interventions” demonstrated a high level of professionalism and dedication. The reviewers provided constructive and detailed feedback, which was essential for improving the quality of our work. Communication was always clear and efficient, ensuring that all our questions were promptly addressed. The quality of the “Journal of Clinical Cardiology and Cardiovascular Interventions” is undeniable. It is a peer-reviewed, open-access publication dedicated exclusively to disseminating high-quality research in the field of clinical cardiology and cardiovascular interventions. The journal's impact factor is currently under evaluation, and it is indexed in reputable databases, which further reinforces its credibility and relevance in the scientific field. I highly recommend this journal to researchers looking for a reputable platform to publish their studies.

img

Dr Marcelo Flavio Gomes Jardim Filho

Dear Editorial Coordinator of the Journal of Nutrition and Food Processing! "I would like to thank the Journal of Nutrition and Food Processing for including and publishing my article. The peer review process was very quick, movement and precise. The Editorial Board has done an extremely conscientious job with much help, valuable comments and advices. I find the journal very valuable from a professional point of view, thank you very much for allowing me to be part of it and I would like to participate in the future!”

img

Zsuzsanna Bene

Dealing with The Journal of Neurology and Neurological Surgery was very smooth and comprehensive. The office staff took time to address my needs and the response from editors and the office was prompt and fair. I certainly hope to publish with this journal again.Their professionalism is apparent and more than satisfactory. Susan Weiner

img

Dr Susan Weiner

My Testimonial Covering as fellowing: Lin-Show Chin. The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews.

img

Lin-Show Chin

My experience publishing in Psychology and Mental Health Care was exceptional. The peer review process was rigorous and constructive, with reviewers providing valuable insights that helped enhance the quality of our work. The editorial team was highly supportive and responsive, making the submission process smooth and efficient. The journal's commitment to high standards and academic rigor makes it a respected platform for quality research. I am grateful for the opportunity to publish in such a reputable journal.

img

Sonila Qirko

My experience publishing in International Journal of Clinical Case Reports and Reviews was exceptional. I Come forth to Provide a Testimonial Covering the Peer Review Process and the editorial office for the Professional and Impartial Evaluation of the Manuscript.

img

Luiz Sellmann