In vitro and in vivo anti-hepatotoxic effects of Alpinia galanga.

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Journal name: World Journal of Pharmaceutical Research
Original article title: In vitro and in vivo anti hepatotoxic evaluation of alpinia galanga on d- galactosamine induced toxicity
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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Author:

Srividya Ammayappan Rajam, Sameer Kumar Varma, Vishnuvarthan Vaithiyalingam Jagannathan


World Journal of Pharmaceutical Research:

(An ISO 9001:2015 Certified International Journal)

Full text available for: In vitro and in vivo anti hepatotoxic evaluation of alpinia galanga on d- galactosamine induced toxicity

Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research

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Summary of article contents:

Introduction

The liver is a vital organ responsible for various biochemical processes, including detoxification, metabolism, and protein synthesis. It is particularly susceptible to damage from various hepatotoxins, which can lead to drug-induced liver injury (DILI). DILI accounts for a significant percentage of acute liver failure cases, with potential causes including misuse of medications, exposure to toxic substances, and the influence of naturally occurring plant toxins. The present study evaluates the hepatoprotective properties of Alpinia galanga, a member of the Zingiberaceae family, against liver toxicity induced by D-galactosamine (D-GalN).

Phytochemical Composition

The analysis of Alpinia galanga extracts revealed the presence of vital secondary metabolites, including terpenoids, flavonoids, alkaloids, tannins, saponins, and glycosides. The qualitative phytochemical analysis of various extracts indicated that the hydro-alcoholic extracts (both cold and hot) exhibited higher total phenolic content compared to other solvents, with the hot extract showing the most potent antioxidant activity. Specifically, the total phenolic content was measured at 14.50 ± 0.210 mg/g in hot extracts and 12.59 ± 0.295 mg/g in cold extracts, emphasizing the significance of these compounds in potentially mitigating hepatotoxicity.

Antioxidant and Antihepatotoxic Activity

In vitro assays demonstrated that the hydro-alcoholic hot extract of Alpinia galanga exhibited significant antioxidant activity, with an IC50 value of 7.7 ± 0.121 μg/ml. The extract showed remarkable reducing power and total antioxidant capacity, indicating its ability to scavenge free radicals effectively. Furthermore, treatment with this extract exhibited hepatoprotective effects by restoring altered biochemical parameters to near-normal levels in rat hepatocytes exposed to D-GalN. The findings suggest that the extract can reduce liver enzyme levels associated with injury, supporting its traditional use as a hepatoprotective agent.

In Vivo Hepatoprotective Effects

The in vivo studies further confirmed the protective efficacy of Alpinia galanga extracts against D-GalN-induced liver damage in albino Wistar rats. Animals treated with the hydro-alcoholic extracts at doses of 200 mg/kg and 400 mg/kg demonstrated significant improvements in liver function markers, showing reduced levels of liver enzymes (ASAT, ALAT) and bilirubin, alongside enhanced total protein and albumin levels. This outcome highlights the potential of Alpinia galanga in mitigating liver injury through its antioxidant properties and its ability to modulate cellular responses to toxic agents.

Conclusion

The conducted research substantiates the hepatoprotective and antioxidant properties of Alpinia galanga, aligning with its traditional applications in medicinal practices. The findings provide a robust foundation for further investigations aimed at isolating and characterizing the active constituents responsible for these therapeutic effects. With drug-induced liver toxicity being a significant clinical challenge, natural remedies like Alpinia galanga could offer complementary approaches to conventional treatments, reducing adverse liver effects associated with pharmacotherapy.

FAQ section (important questions/answers):

What is the purpose of the study on Alpinia galanga?

The study investigates the anti-hepatotoxic effects of Alpinia galanga against D-galactosamine induced toxicity in rat models, exploring both in vitro and in vivo evaluations.

What constituents were identified in Alpinia galanga extracts?

Qualitative analysis revealed terpenoids, flavonoids, alkaloids, tannins, saponins, and glycosides in Alpinia galanga extracts, contributing to its potential medicinal properties.

What were the key findings regarding antioxidant activity?

The hydro alcoholic hot extract demonstrated potent antioxidant activity with an IC50 value of 7.7 ± 0.121 μg/ml, significantly better than other extracts tested.

How did Alpinia galanga affect biochemical parameters in treated rats?

Treatment with Alpinia galanga extracts restored altered biochemical parameters significantly compared to D-galactosamine treated groups, highlighting its protective effects.

What was the methodology used for extract preparation?

The extracts were prepared using Soxhlet extraction, cold maceration, and hot maceration with varying solvents to obtain different phyto-constituents.

What were the effects of D-galactosamine on liver functions?

D-galactosamine administration caused significant elevations in liver enzymes and bilirubin levels, indicating hepatotoxicity, which was effectively mitigated by Alpinia galanga extracts.

Glossary definitions and references:

Scientific and Ayurvedic Glossary list for “In vitro and in vivo anti-hepatotoxic effects of Alpinia galanga.”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.

1) Activity:
In pharmacological studies, 'activity' refers to the effect or influence a substance has on biological systems. Evaluating the activity of extracts, especially from plants like Alpinia galanga, is essential to understand their potential therapeutic benefits, particularly in conditions such as hepatotoxicity, as described in the research paper.

2) Table:
'Table' in scientific papers organizes data systematically for clarity and ease of reference. In this study, tables summarize findings on phytochemical content, biochemical effects, and experimental results regarding the hepatoprotective properties of Alpinia galanga, allowing readers to quickly comprehend complex information.

3) Animal:
The term 'animal' relates to the use of live subjects in the study to assess the efficacy and safety of herbal formulations. The research utilized Wistar albino rats to investigate the hepatotoxic effects induced by D-galactosamine and the potential protective effects of Alpinia galanga extracts.

4) Drug:
The word 'drug' denotes a chemical or biological agent used to diagnose, cure, treat, or prevent disease. The study investigates herbal drugs, highlighting the hepatoprotective activity of Alpinia galanga against toxic effects induced by synthetic or prescription drugs like D-galactosamine.

5) Water:
In the context of this research, 'water' pertains to the medium used for various extraction techniques. It is essential in preparing hydro-alcoholic extracts of Alpinia galanga, crucial for maintaining solubility and bioavailability of phytochemicals while performing in vitro and in vivo experiments.

6) Phytochemical:
Phytochemicals are bioactive compounds found in plants that contribute to their medicinal properties. This study focuses on identifying and evaluating phytochemicals such as flavonoids and tannins in Alpinia galanga, which play significant roles in its antioxidant and hepatoprotective activities against induced liver toxicity.

7) Kumar:
The term 'Kumar' likely refers to one of the authors, Sameer Kumar Varma, who conducted research on the anti-hepatotoxic effects of Alpinia galanga. Individual contributions of researchers are important in scientific literature as they attribute responsibilities for various parts of the research.

8) India:
'India' is the geographical context of the research, elaborating on the provenance of the studied plant, Alpinia galanga. Understanding the regional context is vital, as it may affect the availability of traditional medicinal practices and the associated herbal knowledge pertinent to the study.

9) Toxicity:
'Toxicity' indicates the degree to which a substance can cause harm to an organism. This study specifically examines the hepatotoxicity induced by D-galactosamine and the reversibility of these effects through treatment with Alpinia galanga, reinforcing the importance of testing herbal remedies for safety.

10) Medium:
'Medium' generally refers to the substances used in culture systems for cell growth or extraction processes. In this research, various media were utilized, such as HEPES buffer and F12 supplemented with specific nutrients, to maintain optimal conditions for cell viability during hepatocyte studies.

11) Study (Studying):
'Study' denotes an organized investigation aimed at discovering or analyzing aspects of a subject. This paper presents a study assessing the in vitro and in vivo hepatoprotective effects of Alpinia galanga on liver dysfunctions caused by chemical toxins, which is crucial for potential therapeutic applications.

12) Food:
The term 'food' may relate to the dietary sources of herbal medicines, particularly in traditional practices. Alpinia galanga, often used in culinary dishes, underscores the notion that many medicinal plants serve dual purposes as food and medicines, emphasizing their holistic use in health.

13) Blood:
'Blood' plays a crucial role in the pharmacological studies, primarily for conducting biochemical analyses post-treatment. The assessment of liver function and damage through various blood parameters (like enzyme levels and bilirubin) provides insights into the effectiveness of the hepatoprotective treatment used in this study.

14) Measurement:
'Measurement' refers to the quantitative assessment of parameters in the study, such as enzyme levels and phytochemical concentration. Accurate measurement is vital in scientific research to validate findings, ensure reproducibility, and facilitate comparisons among study groups.

15) Tamilnadu (Tamil-nadu):
'Tamilnadu' is mentioned similarly to Tamil-nadu, indicating the state of India where the study was conducted. It emphasizes both the cultural tradition surrounding herbal medicine and the local flora essential for research on medicinal plants like Alpinia galanga.

16) Toxicology:
'Toxicology' is the study of the adverse effects of chemicals on living organisms. In this research, toxicology principles apply in assessing D-galactosamine-induced hepatotoxicity, determining how Alpinia galanga extracts can mitigate such toxic effects, and evaluating their safety.

17) Substance:
'Substance' refers broadly to any material with distinct physical and chemical properties, including the herbal extracts tested in this study. Understanding the characteristics of the extracted substances is crucial for assessing their pharmacological effects and determining their potential therapeutic uses.

18) Species:
'Species' is a biological classification that identifies specific organisms. The term identifies Alpinia galanga within the Zingiberaceae family, contextualizing the study in terms of biodiversity and significance in traditional herbal practices, as well as its unique phytochemical profile.

19) Kerala:
'Kerala' is a state in India where Alpinia galanga was collected, reflecting the local biodiversity and traditional use of medicinal plants. Highlighting this region speaks to the cultural practices surrounding the usage of herbs within local communities, which can influence research findings.

20) Family:
'Family' in biological taxonomy groups species based on shared characteristics. Alpinia galanga belongs to the Zingiberaceae family, which underscores its relationship with other plants. This classification aids in studying its phytochemical constituents and understanding its overall role within herbal medicine.

21) Rajan:
Rajan refers to Dr. S. Rajan, who authenticated the plant material used in this study. Proper authentication is vital in pharmaceutical research to ensure the correct identification of plants, impacting the credibility and reproducibility of the study findings.

22) Ulcer:
The term 'ulcer' indicates the medical condition related to damage or sores in the lining of organs. Alpinia galanga is mentioned for its potential anti-ulcer properties, showing its traditional use in treating intestinal disorders, thus expanding the scope of its therapeutic profile.

23) House:
'House' signifies the institution where the study's research was conducted, encompassing the research facilities crucial for carrying out experiments involving live animals. The housing environment for experimental animals ensures proper care and welfare during the research efforts.

24) Tamil:
'Tamil' is indicative of the linguistic and cultural heritage associated with the region of Tamil Nadu. The usage of Tamil names and concepts for medicinal plants affirms the integration of traditional knowledge in modern pharmacological research, emphasizing cultural respect in scientific inquiries.

25) Nadu:
'Nadu' appears as part of the word Tamilnadu and signifies the Southern region of India where Tamil culture thrives. This highlights the ethnomedical practices prevalent in the region and integrates local heritage into the context of herbal research.

26) Pharmacological:
'Pharmacological' pertains to the study of drugs and their effects in biological systems. This research analyzes the pharmacological actions of Alpinia galanga, establishing a basis for its potential therapeutic applications in treating liver diseases and highlighting the importance of ethnopharmacology.

27) Transformation (Transform, Transforming):
'Transforming' highlights the process by which substances exert their influence on biological entities, such as converting unhealthy conditions into healthier states. The study investigates how Alpinia galanga transforms hepatocytes affected by D-galactosamine toxicity back to a normal physiological condition.

28) Calculation:
'Calculation' refers to the quantitative assessment in various measurements and results reported in the study. Proper calculations ensure accuracy in biological assessments, strengthen scientific conclusions, and impact the reliability of antioxidant and hepatoprotective efficacy of the plant extracts studied.

29) Observation:
'Observation' is critical in scientific experimentation, allowing researchers to note and document findings during experiments. The observations discussed in this paper pertain to the biochemical parameters measured post-treatment and indicate the overall effects of Alpinia galanga on liver health.

30) Discussion:
'Discussion' is a section in scientific literature where authors interpret the results. This study's discussion part helps relate findings to existing knowledge and assess the implications of Alpinia galanga's hepatoprotective activities and its potential integration into therapeutic practices.

31) Flavonoid:
'Flavonoid' refers to a group of phytochemicals known for their antioxidant properties. The presence and quantification of flavonoids in Alpinia galanga contribute significantly to its purported health benefits and therapeutic applications, reinforcing the rationale for studying this plant's pharmacological effects.

32) Ayurveda (Ayus-veda):
'Ayurveda' is a traditional system of medicine originating in India that emphasizes holistic healing and natural remedies. The study of Alpinia galanga aligns with Ayurvedic principles, showcasing the need for scientific validation of time-tested herbal treatments prevalent in this ancient medical system.

33) Hygiene (Hygienic):
'Hygienic' denotes the importance of cleanliness and health standards in laboratory practice. Ensuring hygienic conditions is essential in animal studies to prevent contamination and ensure the validity of results, alluding to the ethical responsibilities of conducting research.

34) Chennai:
'Chennai' is a major city in Tamil Nadu, India, where SRM University, involved in the research, is located. The city's role in academia highlights the resources available for conducting pharmacological research and the collaborative efforts within regional institutions to advance scientific understanding.

35) Quality:
The word 'quality' emphasizes the importance of standardization and purity in herbal products. In pharmacological research, ensuring the quality of plant extracts such as Alpinia galanga is crucial for reproducibility and the reliability of claims regarding their efficacy and safety.

36) Camphor:
Camphor, a common phytochemical in plants, including those in the Zingiberaceae family, is noted for its medicinal properties. Its presence in Alpinia galanga suggests that the plant may have additional therapeutic benefits, further justifying its use within traditional medicine.

37) Disease:
'Disease' refers to a pathological condition affecting an organism. The study focuses on liver disease induced by chemicals like D-galactosamine, using Alpinia galanga extracts to assess potential therapeutic properties, highlighting the necessity of exploring herbal remedies for health conditions.

38) Mishra (Misra):
Mishra refers to another author of the study, whose contributions are integral to the research. Collaborations in scientific work are essential for diverse perspectives and expertise, ensuring comprehensive investigation and in-depth analysis of the project.

39) Mysore:
'Mysore' is a city in Karnataka, India, associated with academic institutions like JSS University where the research was facilitated. This geographical context reinforces the collaborative nature of herbal research in India, leveraging regional knowledge and academic resources.

40) Nature:
'Nature' encompasses the intrinsic qualities and characteristics of an organism or substance. In this study, the nature of Alpinia galanga's phytochemical profile is pivotal, determining its functional efficacy and potential therapeutic applications in the treatment of liver ailments.

41) Misuse:
'Misuse' indicates the inappropriate use of substances, often leading to adverse effects. D-galactosamine's intended use in studies highlights the ramifications of substance misuse, underscoring the importance of research aimed at protecting against toxicologically relevant factors.

42) Powder:
'Powder' relates to the physical form of the plant material post-extraction, which is integral in creating herbal formulations. The use of powdered extracts emphasizes the preparation process necessary to facilitate the bioavailability and efficacy of the phytochemicals in treatments.

43) Raghu:
'Raghu' denotes another author associated with the research. Their involvement is significant as collaborations often enhance the breadth and rigor of scientific investigation, allowing multiple researchers to contribute their expertise and perspectives to the study.

44) Mamsi (Mansi):
'Mansi' refers to one of the authors, contributing to the overall research effort. The inclusion of multiple authors indicates a collaborative approach in scientific inquiry, shared responsibilities, and diverse expertise in pharmacological and phytochemical studies.

45) Fever:
The term 'fever' can relate to various health conditions that may benefit from herbal remedies. Alpinia galanga and its constituents may have traditional uses in treating fever, demonstrating the plant's wider applications in holistic health practices and reinforcing the need for scientific validation.

46) Death:
'Death' signifies the most extreme outcome of toxicity or adverse reactions in the study. Understanding the lethal potential of substances like D-galactosamine emphasizes the importance of investigating protective measures through natural remedies like Alpinia galanga to mitigate such effects.

47) Cage:
'Cage' refers to housing for laboratory animals during research. The ethical and proper care of animals in cages is crucial for humane treatment and valid experimental outcomes, ensuring welfare and reliable results in scientific assessments.

48) Bell:
Mentioning 'Bell' likely refers to a researcher or author (John Bell) noted for contributions to understanding drug-induced liver injury epidemiology. Including references to such works underpins the importance of prior research in establishing context and relevance for current studies in toxicology.

49) Male:
'Male' in the context of this study indicates the gender of the experimental subjects, highlighting the necessity to consider sex differences in pharmacological responses, which may influence the efficacy and safety profiles of treatments evaluated in the research.

Other Science Concepts:

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Discover the significance of concepts within the article: ‘In vitro and in vivo anti-hepatotoxic effects of Alpinia galanga.’. Further sources in the context of Science might help you critically compare this page with similair documents:

Alpinia galanga, Tephrosia purpurea, Antioxidant activity, Phytochemical analysis, Hepatotoxicity, In vitro, Hepatoprotective activity, Lipid peroxidation, Immune response, Hepatoprotective effect, Total phenolic content, Hydro alcoholic extract, Malondialdehyde (MDA), Total phenol content, Qualitative phytochemical analysis, Ethanol extract, Active constituent, Biochemical estimation, Total antioxidant capacity, DPPH radical scavenging activity, Analysis of variance, Cytotoxicity, In vivo, Silymarin, Evaluation of hepatoprotective activity, Reducing Power Ability, Plant Extract, Stem Bark, Spectrophotometer, Liver Injury, Thiobarbituric acid reactive substance, Pharmacological effect, Quantitative phytochemical analysis, Biochemical parameter, Silymarin treatment, Cytotoxic concentration, Aerial part, Medicinal agent, Plant toxins, Toxic compound, J Ethnopharmacol, Lipid peroxidation level.

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