Antibacterial Activity of Cissus incisa Extracts against Multidrug- Resistant Bacteria

Deyani Nocedo-Mena1,2, Elvira Garza-González3, Mauricio González-Ferrara4

  • 1Faculty of Chemical Sciences, Autonomous University of Nuevo Leon, Av. Universidad S/N, Ciudad Universitaria, CP 66451, San Nicolas de los Garza, Nuevo Leon, Mexico.

Abstract

Insights

Researchers explored Cissus incisa for new antimicrobial agents. The chloroform/methanol extract showed broad-spectrum antibacterial activity, offering potential for novel drug discovery.

Area of Science:

  • Ethnobotany and Phytochemistry
  • Microbiology and Infectious Diseases

Background:

  • Antimicrobial resistance is a growing global health threat, increasing morbidity, mortality, and treatment costs.
  • Infectious diseases caused by resistant bacteria pose a significant challenge compared to those caused by sensitive strains.

Purpose of the Study:

  • To investigate the biological activities of Cissus incisa, a plant with traditional medicinal uses.
  • To identify potential new antimicrobial agents from plant-derived sources.

Main Methods:

  • Preparation of three leaf extracts from Cissus incisa: hexane, chloroform/methanol (1:1), and aqueous.
  • Evaluation of antibacterial and antitubercular activities using microdilution and alamar blue assays.

Main Results:

  • The chloroform/methanol extract demonstrated the most potent antimicrobial activity among the tested extracts.
  • This extract exhibited broad-spectrum activity against both Gram-positive and Gram-negative bacteria, with minimum inhibitory concentrations (MICs) ranging from 125 to 500 μg/mL.

Conclusions:

  • This study contributes to the ethnobotanical knowledge of Mexican flora.
  • Cissus incisa extracts show promise as a source of potential new antibacterial agents.

Related Concept Videos

Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
862
Combined Effects of Drugs: Synergism01:27

Combined Effects of Drugs: Synergism

Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
6.7K
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
1.1K
Antimicrobial Proteins01:23

Antimicrobial Proteins

Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
12.8K