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All Journal Biology, Medicine, & Natural Product Chemistry SIMBIOSA Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Bioteknologi & Biosains Indonesia
Ihsan, Kharisul
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Health Professions Medicine & Pharmacology Public Health

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BLOOD SMEAR EXAMINATION AND DIFFERENTIAL COUNT IN RATS WITH ESCHERICHIA COLI ESBL AND KLEBSIELLA PNEUMONIAE CARBAPENEMASE INFECTIONS Savitri, Lisa; Kasimo, Elfred Rinaldo; Ihsan, Kharisul; Faizal, Imam Agus
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 1 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.10708

Abstract

Sepsis is an irregular body response to severe infection, triggering uncontrolled inflammation that can lead to extensive tissue damage. It can progress to septic shock with multiple organ failure, resulting in death if left untreated. Laboratory examinations, such as leukocyte differential count in hematology, help understand the distribution pattern of white blood cells associated with health conditions. Laboratory research was conducted on mice injected with E. coli ESBL or K. pneumoniae carbapenemase. After 24 hours, observations were made on apoptosis in the spleen and liver of mice. Mouse blood was processed to count white blood cell types with a differential count. The results were analyzed to compare the control group with the bacterial infection groups of E. coli ESBL and K. pneumoniae carbapenemase. The research results indicate that the neutrophil count in the E. coli ESBL group is still within the normal range and lower (44.5±1.915%) compared to the K. pneumoniae carbapenemase group (55.75±8.342%). Similarly, the lymphocyte count in the E. coli ESBL group is within the normal range and lower (77.5±3.109%) compared to the K. pneumoniae carbapenemase group (91.25±7.588%). This highlights the crucial role of neutrophils and lymphocytes in responding to severe bacterial infections such as K. pneumoniae carbapenemase. Previous studies indicate neutrophilia and lymphocytopenia as markers of severe bacterial infections. Neutrophils are the primary defense against bacterial infections and can be rapidly recruited to the infection site, while specific infections can trigger prolonged neutrophil recruitment from hematopoietic tissues.
BLOOD SMEAR EXAMINATION AND DIFFERENTIAL COUNT IN RATS WITH ESCHERICHIA COLI ESBL AND KLEBSIELLA PNEUMONIAE CARBAPENEMASE INFECTIONS Savitri, Lisa; Kasimo, Elfred Rinaldo; Ihsan, Kharisul; Faizal, Imam Agus
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 1 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.10708

Abstract

Sepsis is an irregular body response to severe infection, triggering uncontrolled inflammation that can lead to extensive tissue damage. It can progress to septic shock with multiple organ failure, resulting in death if left untreated. Laboratory examinations, such as leukocyte differential count in hematology, help understand the distribution pattern of white blood cells associated with health conditions. Laboratory research was conducted on mice injected with E. coli ESBL or K. pneumoniae carbapenemase. After 24 hours, observations were made on apoptosis in the spleen and liver of mice. Mouse blood was processed to count white blood cell types with a differential count. The results were analyzed to compare the control group with the bacterial infection groups of E. coli ESBL and K. pneumoniae carbapenemase. The research results indicate that the neutrophil count in the E. coli ESBL group is still within the normal range and lower (44.5±1.915%) compared to the K. pneumoniae carbapenemase group (55.75±8.342%). Similarly, the lymphocyte count in the E. coli ESBL group is within the normal range and lower (77.5±3.109%) compared to the K. pneumoniae carbapenemase group (91.25±7.588%). This highlights the crucial role of neutrophils and lymphocytes in responding to severe bacterial infections such as K. pneumoniae carbapenemase. Previous studies indicate neutrophilia and lymphocytopenia as markers of severe bacterial infections. Neutrophils are the primary defense against bacterial infections and can be rapidly recruited to the infection site, while specific infections can trigger prolonged neutrophil recruitment from hematopoietic tissues.
Analisis Kekerabatan Populasi Drosophila di Besuki, Bangil, dan Lumajang Berdasarkan Karakter Morfologi Savitri, Lisa; Ihsan, Kharisul; Krissanjaya, Rochmad
SIMBIOSA Vol 14, No 2 (2025): SIMBIOSA
Publisher : Program Studi Pendidikan Biologi, Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/simbiosa.v14i2.8415

Abstract

Penelitian ini bertujuan untuk mengkaji hubungan kekerabatan populasi Drosophila dari tiga lokasi di Jawa Timur, yaitu Besuki, Bangil, dan Lumajang, berdasarkan karakter morfologi. Sampel diperoleh melalui penangkapan langsung dan diamati menggunakan parameter panjang tubuh, lebar sayap, dan intensitas pigmen. Analisis deskriptif, Principal Component Analysis (PCA), dan analisis klaster digunakan untuk menentukan pola variasi dan kedekatan morfologi antar populasi. Hasil penelitian menunjukkan adanya variasi signifikan pada ketiga parameter, di mana populasi Besuki dan Bangil menunjukkan ukuran tubuh lebih besar dibandingkan Lumajang. Pigmentasi tubuh populasi Bangil lebih gelap dibandingkan dua lokasi lainnya. Analisis PCA dan klaster menunjukkan kedekatan kekerabatan Besuki–Bangil, sedangkan Lumajang membentuk kelompok tersendiri. Variasi ini diduga dipengaruhi oleh kondisi lingkungan lokal, faktor genetik, dan aspek biotik. Hasil penelitian ini menegaskan potensi penggunaan morfologi Drosophila sebagai indikator awal hubungan kekerabatan dan adaptasi lokal.
In Silico Molecular Docking and ADMET Evaluation of Active Compounds from Acalypha indica L. Against the HER2 Breast Cancer Target Savitri, Lisa; Ihsan, Kharisul; Kasimo, Elfred Rinaldo; Krissanjaya, Rochmad
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.45-51

Abstract

Breast cancer is one of the leading causes of cancer-related mortality in women worldwide, and overexpression of human epidermal growth factor receptor 2 (HER2) is associated with aggressive tumor progression, poor prognosis, and treatment resistance. Natural compounds are increasingly explored as safer anticancer candidates due to their structural diversity and lower toxicity profiles. Acalypha indica L., a traditional medicinal plant widely used in Asia, contains numerous phytochemicals with reported antioxidant and cytotoxic activities. This study investigates the binding affinity and pharmacokinetic potential of major A. indica phytochemicals against HER2 using in silico molecular docking and ADMET predictions. Twelve bioactive compounds were selected: quercetin, kaempferol, luteolin, rutin, isoquercitrin, caffeic acid, ferulic acid, esculetin, lupeol, beta-sitosterol, stigmasterol, and acalyphin. Docking was performed using AutoDock Vina against HER2 (PDB ID: 3PP0). Kaempferol (-10.2 kcal/mol), quercetin (-9.8 kcal/mol), and luteolin (-9.3 kcal/mol) showed the highest affinity, interacting strongly with key residues within the HER2 ATP-binding pocket. ADMET analysis indicated that kaempferol, quercetin, and luteolin possessed favorable oral bioavailability and safety characteristics. These findings suggest that A. indica contains promising HER2-targeting phytochemicals that warrant further investigation through in vitro and in vivo studies.
In Silico Study of the Antibacterial Activity of Acalypha indica L. Compounds Against Staphylococcus aureus DNA Gyrase Protein Savitri, Lisa; Ihsan, Kharisul; Kasimo, Elfred Rinaldo
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.137-141

Abstract

Flavonoids from Acalypha indica exhibit potential antibacterial activity against Staphylococcus aureus, particularly through inhibition of DNA gyrase B. This study evaluated molecular interactions of mauritanin, acalyphin, quercetin, and kaempferol using in silico approaches, including molecular docking, molecular dynamics simulation, and ADMET prediction. Docking results showed that mauritanin had the lowest binding energy (-8.5 kcal/mol) and formed stable interactions with key residues in the active site, corroborated by 50 ns molecular dynamics simulations. Pharmacokinetic and drug-likeness predictions indicated that mauritanin and acalyphin had favorable profiles, with high gastrointestinal absorption and low toxicity risk. The other flavonoids showed higher permeability across the central nervous system, potentially beneficial for CNS-targeted therapies. These findings support mauritanin as a promising lead compound for novel antibacterial agent development, warranting further in vitro and in vivo validation.
In Vivo Evaluation of the Antibacterial Activity of Sapindus rarak (Lerak) and Host Immunological Profiles in an Escherichia coli Infection Model Savitri, Lisa; Ihsan, Kharisul; Kasimo, Elfred Rinaldo; Krissanjaya, Rochmad
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.319-324

Abstract

This study evaluated the in vivo antibacterial activity of Sapindus rarak (lerak) extract and its effects on host immune responses during Escherichia coli infection. Lerak contains saponins and other bioactive compounds that have shown promising antimicrobial effects in vitro, but in vivo evidence remains limited. Male BALB/c mice were assigned to healthy, infected control, and three treatment groups receiving low, medium, or high doses of lerak extract. All infected groups were orally challenged with pathogenic E. coli and treated for seven days. Clinical signs, bacterial load, cytokines, immunoglobulin levels, and tissue histopathology were assessed. Mice in the infected control group developed weight loss, diarrhea, and systemic signs of infection, whereas those receiving lerak extract showed milder symptoms, especially at higher doses. Lerak significantly reduced bacterial counts in intestinal and systemic tissues, with the strongest effect in the high-dose group. Treatment also decreased pro-inflammatory cytokines (TNF-alpha, IL-6) and increased IL-10, indicating a shift toward controlled inflammation. Serum IgA levels were elevated in treated mice, suggesting enhanced mucosal protection. Histopathology confirmed reduced epithelial damage and inflammatory infiltration in the intestine, liver, and spleen. These findings suggest that lerak extract exerts both antibacterial and immunomodulatory effects in vivo. Its dual activity highlights its potential as a plant-derived therapeutic candidate for managing enteric infections caused by E. coli. Further fractionation and mechanistic studies are warranted to identify active compounds and clarify biological pathways involved.
In Silico Study of Bioactive Compounds from Acalypha indica L. Interacting with the COX-2 Receptor as Potential Anti-Inflammatory Candidates Savitri, Lisa; Ihsan, Kharisul; Krissanjaya, Rochmad; Kasimo, Elfred Rinaldo
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.31-37

Abstract

Acalypha indica L. is a medicinal herb traditionally used across Asia for treating inflammation-related conditions. Although several studies report anti-inflammatory activity in its extracts, little is known about the molecular interaction of its individual phytochemicals with cyclooxygenase-2 (COX-2)—a validated therapeutic target for inflammatory diseases. This study fills this gap by performing a comprehensive in silico analysis of 20 major bioactive compounds of A. indica using molecular docking, binding interaction profiling, and ADMET predictions. Docking against the COX-2 receptor (PDB: 3LN1) using AutoDock Vina revealed that rutin (-10.4 kcal/mol), kaempferol-3-O-rutinoside (-10.1 kcal/mol), quercetin (-9.6 kcal/mol), and luteolin (-9.3 kcal/mol) demonstrated strong predicted affinity and stable interactions with key residues Arg120, Tyr355, and Tyr385, comparable to celecoxib (-10.8 kcal/mol). ADMET profiling showed that aglycone flavonoids possessed more favorable drug-likeness properties than glycosides. These results suggest that A. indica contains multiple promising lead compounds for future COX-2 inhibition studies and highlight the molecular mechanisms supporting its ethnomedicinal use as an anti-inflammatory agent.
In Vitro Assessment of the Antibacterial Activity of Sapindus rarak (Lerak) and Its Influence on Cellular Immune Markers During Escherichia coli Infection Savitri, Lisa; Ihsan, Kharisul; Kasimo, Elfred Rinaldo; Krissanjaya, Rochmad
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.209-213

Abstract

Antibiotic-resistant Escherichia coli remains a major public health concern, prompting interest in plant-derived compounds with both antimicrobial and immunomodulatory functions. This study evaluated the antibacterial activity of Sapindus rarak (lerak) extract and its influence on macrophage cytokine responses during E. coli stimulation. Lerak pericarp extract was prepared using 70% ethanol and tested against E. coli ATCC 25922 using broth microdilution. Immunomodulatory effects were assessed in RAW 264.7 macrophages exposed to heat-killed E. coli, followed by treatment with sub-MIC concentrations of the extract. The results showed moderate antibacterial activity, with a minimum inhibitory concentration of 250 microgram/mL and a minimum bactericidal concentration of 500 microgram/mL. Cell viability exceeded 90% at 50–100 microgram/mL, confirming suitability for immunological assays. Lerak significantly reduced TNF-alpha and IL-6 production while increasing IL-10 levels, indicating suppression of excessive inflammation and enhancement of regulatory responses. These findings suggest that S. rarak possesses dual antibacterial and immunomodulatory properties, highlighting its potential as a complementary therapeutic candidate for managing E. coli infections where inflammation contributes to disease severity.
Computational Evaluation of Antibacterial Activity of Acalypha indica L. Phytochemicals Against Staphylococcus aureus DNA Gyrase Savitri, Lisa; Ihsan, Kharisul; Kasimo, Elfred Rinaldo; Krissanjaya, Rochmad
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.451-455

Abstract

This study investigated the antibacterial potential of phytochemical compounds derived from Acalypha indica L. against the DNA gyrase of Staphylococcus aureus using an in silico computational approach. Phytochemical structures were collected from established compound databases and subjected to geometry optimization to ensure conformational stability before molecular docking analysis. Docking simulations were carried out using AutoDock Vina to evaluate the binding affinity and interaction profiles of each ligand with the ATP-binding domain of DNA gyrase, a critical enzyme involved in bacterial DNA replication. The three-dimensional structure of S. aureus DNA gyrase was obtained from the Protein Data Bank and prepared through removal of water molecules, addition of polar hydrogens, and refinement of active-site residues. Among the screened ligands, five compounds exhibited strong predicted affinities, with binding energies ranging from -6.8 to -9.1 kcal/mol. Compound C demonstrated the most favorable interaction, forming stable hydrogen bonds and extensive hydrophobic contacts within the catalytic pocket, suggesting a strong inhibitory potential. Compound E also showed a high affinity, although its orientation within the binding site was slightly less optimal. ADMET predictions indicated that all top candidates satisfied drug-likeness criteria, showed good absorption potential, and presented low toxicity risks. Overall, the findings highlight that Acalypha indica L. contains bioactive constituents with promising inhibitory activity against bacterial DNA gyrase. These results support the traditional use of the plant in antimicrobial applications and provide a foundation for further experimental validation through in vitro enzyme inhibition assays and in vivo studies to confirm their therapeutic relevance.
Co-Authors Elfred Rinaldo Kasimo, Elfred Rinaldo Imam Agus Faizal Rochmad Krissanjaya savitri, Lisa