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The role of Lactobacterium plantarum in solid-state fermentation of Astragalus membranaceus for broiler chicken feed.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-02-07 DOI: 10.1186/s13568-025-01823-7
Huan Li, Yu Kang, Yanting Sun, Chuanzhou Bian, Mingxia Fan, Han Zhang, Shengzhen Zhao, Xinghui Song, Hongxing Qiao
{"title":"The role of Lactobacterium plantarum in solid-state fermentation of Astragalus membranaceus for broiler chicken feed.","authors":"Huan Li, Yu Kang, Yanting Sun, Chuanzhou Bian, Mingxia Fan, Han Zhang, Shengzhen Zhao, Xinghui Song, Hongxing Qiao","doi":"10.1186/s13568-025-01823-7","DOIUrl":"10.1186/s13568-025-01823-7","url":null,"abstract":"<p><p>The purpose of this study was to examine the fermentation of A. membranaceus by L. plantarum and its effects on broiler chickens. L. plantarum solid-state fermentation was employed to solve the problem of releasing the active components of A. membranaceus. The effect of L. plantarum on astragalus was examined by measuring the contents of protein, carbohydrate, calycoflavone, and formononetin in A. membranaceus before and after fermentation. The effect of A. membranaceus on L. plantarum was demonstrated by detecting the changes in galactosidase in L. plantarum before and after fermentation. Fermented A. membranaceus was fed to broiler chickens, and the indices of growth performance, antioxidants, immune function, and intestinal short-chain fatty acids were recorded. The results showed that the cellulose and pectin on the surface of A. membranaceus were decomposed by L. plantarum solid-state fermentation, and the macromolecular proteins were degraded into small molecules. A. membranaceus increased the content of galactosidase in L. plantarum. Solid-state fermentation increased the contents of functional sugars, calycosin, and formononetin in A. membranaceus. Fermentation of A. membranaceus significantly improved the production performance of broilers as well as the antioxidant index, immune index, intestinal morphology, and intestinal short-chain fatty acid content.</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"26"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11806191/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Paracoccus sp. EGY7 carotenoids on triple-negative breast cancer cells: invitro study.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-02-07 DOI: 10.1186/s13568-025-01825-5
Karim Abdelazim, Ahmed Hussein, Sherine N Khattab, Shaymaa Essam El Feky, Nehad Noby
{"title":"Impact of Paracoccus sp. EGY7 carotenoids on triple-negative breast cancer cells: invitro study.","authors":"Karim Abdelazim, Ahmed Hussein, Sherine N Khattab, Shaymaa Essam El Feky, Nehad Noby","doi":"10.1186/s13568-025-01825-5","DOIUrl":"10.1186/s13568-025-01825-5","url":null,"abstract":"<p><p>This study investigates the effect of Paracoccus sp. EGY7 carotenoids on the triple-negative breast cancer cell line (MDA-MB-231). The bacterial strain was isolated, and its carotenoids profile was analyzed via HPLC-DAD-MS. Cytotoxicity, migration tests and the expression of BAX and BCL-2 at the gene and protein levels were carried out to evaluate the therapeutic efficiency of the produced carotenoids. Molecular docking analysis estimated the binding affinity between zeaxanthin and BCL-2 protein. Chromatographic analysis revealed zeaxanthin as the major carotenoid (48.3%). The extract exhibited significant cytotoxicity against MDA-MB-231 cells with an IC<sub>50</sub> of 1200 µg. It notably reduced cell migration, with wound closure percentages of 37.50% and 79.17% for the 600 µg group, while the percentages were 12.50% and 53.50% for the 1200 µg group, compared to 71.67% and 95.67% for the control at 24 and 48 h post-treatment, respectively. The extract induced apoptosis, as evidenced by significantly increased BAX/BCL-2 gene expression ratios at 600 and 1200 µg (p < 0.05). Western blotting showed increased BAX protein expression at 600 and 1200 µg compared to the control group (p < 0.001), and significantly lower BCL-2 protein expression (p = 0.000005 for 1200 µg and p = 0.0001 for 600 µg). Docking analysis indicated a strong affinity of zeaxanthin to BCL-2 (ΔG = -9.773241 kcal/mol) compared to obatoclax (ΔG = -7.419345 kcal/mol). Paracoccus sp. EGY7 carotenoids are a promising anticancer agent against MDA-MB-231 cells. They effectively promote apoptosis and prevent metastasis, crucial for disease advancement in cancer cells.</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"21"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11805741/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aspergillus terreus variant TB21 wet biomass optimized by in-situ transesterification for biodiesel production.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-02-07 DOI: 10.1186/s13568-024-01772-7
Rashmi K Bed, V Ravi Kumar, Ameeta RaviKumar
{"title":"Aspergillus terreus variant TB21 wet biomass optimized by in-situ transesterification for biodiesel production.","authors":"Rashmi K Bed, V Ravi Kumar, Ameeta RaviKumar","doi":"10.1186/s13568-024-01772-7","DOIUrl":"10.1186/s13568-024-01772-7","url":null,"abstract":"<p><p>The oleaginous fungus, Aspergillus terreus when subjected to random chemical mutagenesis led to isolation of TB21 variant with improved lipid content (78.1%) as compared to wild type (49.8%). The fungal wet biomass grown on sugarcane bagasse hydrolysate (SCBH) was subjected to one-step in-situ (direct) acid transesterification to optimize its conversion to biodiesel using a 2-level factorial statistical design of experiments. The process optimization revealed that wet biomass and methanol were the most significant factors and in a short reaction time period of 5 min with low methanol: wet biomass ratio (10:1) influenced FAME production Statistical optimization studies showed that TB21 exhibited a higher FAME content of 76.5 and 38.1% (w/w) from wet and dry biomass, respectively when compared to wild type (48.1 and 24.5%). FAME productivity (0.55<sup>-1</sup> h<sup>-1</sup>) and a yield (66 gL<sup>-1</sup>) were achieved when TB21 was grown on SCBH for 120 h at 30 °C. The FAME profile from the wet biomass of TB21 grown on SCBH had desirable amounts of saturated (77.7%), monounsaturated (7.2%), and polyunsaturated (2.4%) methyl esters. Physico-chemical properties of TB21-derived biodiesel were determined, namely, density(0.88 g cm<sup>-3</sup>), kinematic viscosity (4.1 mm s<sup>-2</sup>), iodine value (96.82), cetane number (55.31), free fatty acid content (0.15%), total acid number (0.3 NaOH mg g<sup>-1</sup>), meeting international (ASTM D6751, EN 14214) and Indian (IS 15607) standards. Thus, the direct one-pot in situ transesterification reaction using wet biomass of variant TB21 strain showed improved production and quality of biodiesel with potential large scale application using the low-cost substrate (SCBH).</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"23"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11806177/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seroprevalence of brucellosis in camels and humans in the Al-Qassim region of Saudi Arabia and its implications for public health.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-02-07 DOI: 10.1186/s13568-025-01822-8
Abdulaziz M Almuzaini, Abdullah S M Aljohani, Ahmed I Alajaji, Ayman Elbehiry, Adil Abalkhail, Abdulrahman Almujaidel, Sahar N Aljarallah, Hazem R Sherif, Eman Marzouk, Abdelmaged A Draz
{"title":"Seroprevalence of brucellosis in camels and humans in the Al-Qassim region of Saudi Arabia and its implications for public health.","authors":"Abdulaziz M Almuzaini, Abdullah S M Aljohani, Ahmed I Alajaji, Ayman Elbehiry, Adil Abalkhail, Abdulrahman Almujaidel, Sahar N Aljarallah, Hazem R Sherif, Eman Marzouk, Abdelmaged A Draz","doi":"10.1186/s13568-025-01822-8","DOIUrl":"10.1186/s13568-025-01822-8","url":null,"abstract":"<p><p>Brucellosis is a significant zoonotic disease caused by intracellular, gram-negative bacteria from the genus Brucella. Although camels are classified as secondary hosts for Brucella species, they are among the most susceptible and vulnerable animals to brucellosis, particularly Brucella abortus (B. abortus) and Brucella melitensis (B. melitensis). The present study aimed to investigate the epidemiology of camel brucellosis as a zoonotic disease by determining the seroprevalence of brucellosis in both camels and humans, assessing potential risk factors (e.g., age, size, and location), and conducting molecular characterization of Brucella spp. associated with abortion in camels. The Rose Bengal Test (RBT), Antigen Rapid Brucella Antibody Test (ARBT), indirect enzyme-linked immunosorbent assay (I-ELISA), and complement fixation test (CFT) were used to detect brucellosis in both camels and humans. Additionally, a molecular method using polymerase chain reaction was used as a confirmatory technique. A total of 625 camel serum samples and 100 human serum samples were collected in sterile vacuum tubes from various camel farms and individuals across different localities in the Al Qassim region. Additionally, samples from 10 confirmed Brucella-infected camels (including the uterus and supramammary lymph nodes) were analyzed. The results indicated that the overall prevalence of brucellosis in camel sera was 9.72%, as determined by RBT, and 8.16%, as determined by ARBT. In contrast, the overall prevalence of brucellosis in human sera from febrile patients was found to be 17% via RBT. Notably, 57.98% of camel sera that tested positive for Brucella antibodies via RBT were also positive according to I-ELISA and CFT. Furthermore, 42.1%, 70.58%, and 47.05% of human sera that were positive for Brucella antibodies as determined by RBT were also positive according to I-ELISA and CFT, respectively. The highest seropositivity for camel brucellosis was observed in female camels, particularly in the Unaizah area of the Qassim region and among the Homr breed. The prevalence of human brucellosis was highest among females and individuals who consumed raw milk. At the molecular level, B. melitensis biovar 3 was detected in the examined tissues. In conclusion, intervention measures are vital for reducing brucellosis in humans and camels. Public awareness campaigns should highlight the importance of protective clothing when handling aborted she-camels and the need to boil or pasteurize milk. Additionally, studies should differentiate between vaccinated and nonvaccinated camels, and standardizing serological tests for diagnosing brucellosis should be prioritized.</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"22"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11806190/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The value of common blood parameters for the differential diagnosis of respiratory tract infections in children.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-02-07 DOI: 10.1186/s13568-025-01829-1
Jun'e Ma, Ting Tian, Nianyi Zeng, Yue Gu, Xuewei Ren, Zhengjiang Jin
{"title":"The value of common blood parameters for the differential diagnosis of respiratory tract infections in children.","authors":"Jun'e Ma, Ting Tian, Nianyi Zeng, Yue Gu, Xuewei Ren, Zhengjiang Jin","doi":"10.1186/s13568-025-01829-1","DOIUrl":"10.1186/s13568-025-01829-1","url":null,"abstract":"<p><p>Mycoplasma pneumoniae and influenza A virus are common pathogens that cause respiratory tract infection in children. Both pathogens present with similar clinical symptoms, and their epidemic periods often overlap. Consequently, it is challenging for clinicians to make a rapid preliminary diagnosis. However, common blood tests is simple and efficient, Therefore, the purpose of this study is to preliminarily distinguish Mycoplasma pneumoniae and influenza A virus infection in children by analyzing the results of common blood tests, thereby guiding clinical diagnosis and treatment.The results showed that, compared with children in the influenza A virus-positive group, children in the Mycoplasma pneumoniae-positive group had higher white blood cell (WBC), red blood cell (RBC), haemoglobin (HGB), platelet (PLT) counts, lymphocyte (LYM) and eosinophil (EOS) counts and ratios, as well as higher concentrations of C-reactive protein (CRP) and serum amyloid A (SAA), while neutrophil (NEU) and monocyte (MONO) counts and ratios, Neutrophil to Lymphocyte ratio( NLR) were lower, in addition, LYM, EOS counts and ratios, and NLR were all more effective in differentiating between the two pathogen infections, A combined analysis of these indicators further improved the differentiation efficacy. Therefore, LYM and EOS counts and ratios, along with NLR, can serve as effective blood parameters for differentiating Mycoplasma pneumoniae infections from influenza A virus infections in children.</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"25"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11806179/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving the survival under gastric conditions of a potential multistrain probiotic produced in co-culture.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-02-06 DOI: 10.1186/s13568-024-01810-4
Marcelo Fernando Valle-Vargas, Yesica Vanesa Rojas-Muñoz, Ruth Yolanda Ruiz-Pardo, Luisa Villamil-Díaz, María Ximena Quintanilla-Carvajal
{"title":"Improving the survival under gastric conditions of a potential multistrain probiotic produced in co-culture.","authors":"Marcelo Fernando Valle-Vargas, Yesica Vanesa Rojas-Muñoz, Ruth Yolanda Ruiz-Pardo, Luisa Villamil-Díaz, María Ximena Quintanilla-Carvajal","doi":"10.1186/s13568-024-01810-4","DOIUrl":"10.1186/s13568-024-01810-4","url":null,"abstract":"<p><p>Process and culture medium composition in bioreactor could be optimized in order to find the best conditions that improve survival of probiotic microorganism under exposure to gastric conditions such low pH and bile salts. Therefore, this study aimed to optimize agitation, yeast extract, and di-sodium phosphate (Na<sub>2</sub>HPO<sub>4</sub>) concentration to improve the survival under gastric conditions of a multistrain consortium produced in a laboratory bioreactor. Viability, survival low pH (3.00), bile salt tolerance, and antagonistic activity against the pathogen Streptococcus agalactiae were evaluated. As the main result, a high concentration of di-sodium phosphate (2.63% w/v) increased the viability of L. lactis A12 (9.05 to 9.46 Log<sub>10</sub> CFU/mL) and Priestia species (0.00 to 6.88 Log<sub>10</sub> CFU/mL), survival to pH 3.00 (60 to 93%), survival of bile salts (58- 93%) antagonistic activity (8.74 to 15.56 mm), and final pH of culture medium (4.34 to 6.95). Optimal conditions that improved probiotics characteristics were 150 RPM, 0.83% w/v yeast extract, and 2.63% w/v Na<sub>2</sub>HPO<sub>4</sub>. Co-culture of L. lactis A12 with Priestia species improved significantly (p < 0.05) the antagonistic activity (10.41 mm) against S. agalactiae compared to mono-culture (7.70 mm). Our results suggested that was possible to produce a potential multistrain preparation in a lab bioreactor with high viability of L. lactis A12 (9.33 Log<sub>10</sub> CFU/mL), high survival to gastric conditions (> 85%), and with antagonistic activity against fish pathogen. This preparation could be used as a feed additive intended for fish nutrition.</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"20"},"PeriodicalIF":3.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11803006/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of fluconazole and amphotericin B in the control of cryptococcal pneumonia in vivo.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-01-30 DOI: 10.1186/s13568-025-01827-3
Zhao Yu, Zhihao Liu, Jiaojiao Qian, Yuanyuan Qian
{"title":"Effects of fluconazole and amphotericin B in the control of cryptococcal pneumonia in vivo.","authors":"Zhao Yu, Zhihao Liu, Jiaojiao Qian, Yuanyuan Qian","doi":"10.1186/s13568-025-01827-3","DOIUrl":"10.1186/s13568-025-01827-3","url":null,"abstract":"<p><p>Cryptococcal pneumonia is a severe fungal infection of the respiratory system, predominantly caused by Cryptococcus neoformans. Its incidence is increasing, driven by evolving pathogen dynamics and heightened susceptibility among patient populations. This investigation aimed to assess the combined therapeutic efficacy of Fluconazole and Amphotericin B for cryptococcal pneumonia and to explore the roles of miR-15b and TGF-β1 in modulating treatment response. Twenty-eight patients diagnosed with cryptococcal pneumonia were randomly allocated to receive either Amphotericin B monotherapy (control group) or a combination of Amphotericin B and Fluconazole (observation group) over a 14-day period. Key respiratory function indices-forced expiratory volume in one second (FEV1), forced vital capacity (FVC), and FEV1/FVC ratios-were measured pre- and post-treatment, alongside levels of procalcitonin (PCT), soluble triggering receptor expressed on myeloid cells-1 (sTREM-1), miR-15b, and TGF-β1. Results demonstrated marked improvements in pulmonary function within the observation group, with significantly higher FEV1, FVC, and FEV1/FVC values than those in the control group (P < 0.05). Additionally, the observation group exhibited greater reductions in PCT and sTREM-1, coupled with notable elevations in miR-15b and TGF-β1 levels. The combination therapy achieved a total response rate of 92.86%, significantly surpassing the control's 57.14% efficacy (P < 0.05). These findings indicate that Fluconazole combined with Amphotericin B not only enhances clinical efficacy by mitigating inflammation but also supports lung function recovery with a favourable safety profile, highlighting its utility in managing cryptococcal pneumonia effectively.</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"19"},"PeriodicalIF":3.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11782750/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143063255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Compatibility and antimicrobial activity of silver nanoparticles synthesized using Lycopersicon esculentum peels.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-01-29 DOI: 10.1186/s13568-024-01816-y
Esraa Ali, Samah H Abu-Hussien, Esraa Hesham, Shimaa Ahmed, Habiba Mostafa, Ahmed Gamal, Salwa M El-Sayed, Bahaa Hemdan, Ashraf Bakry, Naglaa M Ebeed, Hesham Elhariry, Ahmed Galal, Basma T Abd-Elhalim
{"title":"Correction: Compatibility and antimicrobial activity of silver nanoparticles synthesized using Lycopersicon esculentum peels.","authors":"Esraa Ali, Samah H Abu-Hussien, Esraa Hesham, Shimaa Ahmed, Habiba Mostafa, Ahmed Gamal, Salwa M El-Sayed, Bahaa Hemdan, Ashraf Bakry, Naglaa M Ebeed, Hesham Elhariry, Ahmed Galal, Basma T Abd-Elhalim","doi":"10.1186/s13568-024-01816-y","DOIUrl":"10.1186/s13568-024-01816-y","url":null,"abstract":"","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"16"},"PeriodicalIF":3.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780065/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143063251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Optimizing chitosan derived from Metapenaeus affinis: a novel anti-biofilm agent against Pseudomonas aeruginosa.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-01-29 DOI: 10.1186/s13568-024-01815-z
Anali Riahi, Hadideh Mabudi, Elahe Tajbakhsh, Laleh Roomiani, Hasan Momtaz
{"title":"Correction: Optimizing chitosan derived from Metapenaeus affinis: a novel anti-biofilm agent against Pseudomonas aeruginosa.","authors":"Anali Riahi, Hadideh Mabudi, Elahe Tajbakhsh, Laleh Roomiani, Hasan Momtaz","doi":"10.1186/s13568-024-01815-z","DOIUrl":"10.1186/s13568-024-01815-z","url":null,"abstract":"","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"17"},"PeriodicalIF":3.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780037/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143063252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Celastrol boosts fluconazole efficacy against vaginal candidiasis: in vitro and in vivo evidence.
IF 3.5 3区 生物学
AMB Express Pub Date : 2025-01-29 DOI: 10.1186/s13568-025-01824-6
Fatma Al-Zahraa A Yehia, Hisham A Abbas, Tarek M Ibrahim, Basem Mansour, Zuhier A Awan, Mohammed W Al-Rabia, Wesam H Abdulaal, Mustafa Adnan Zeyadi, Solomon Z Okbazghi, Tarek S Ibrahim, Wael A H Hegazy, Salwa E Gomaa
{"title":"Celastrol boosts fluconazole efficacy against vaginal candidiasis: in vitro and in vivo evidence.","authors":"Fatma Al-Zahraa A Yehia, Hisham A Abbas, Tarek M Ibrahim, Basem Mansour, Zuhier A Awan, Mohammed W Al-Rabia, Wesam H Abdulaal, Mustafa Adnan Zeyadi, Solomon Z Okbazghi, Tarek S Ibrahim, Wael A H Hegazy, Salwa E Gomaa","doi":"10.1186/s13568-025-01824-6","DOIUrl":"10.1186/s13568-025-01824-6","url":null,"abstract":"<p><p>Candida albicans is a commensal fungus that naturally inhabits the vagina. However, overgrowth of C. albicans can result in vulvovaginal candidiasis (VVC), one of the most prevalent fungal infections affecting women. The rapid emergence of azole resistance in C. albicans, in addition to the limited available antifungal agents, complicates the treatment and emphasizes the urgent need for novel therapeutic options. Efflux-mediated azole resistance is a common resistance mechanism in fluconazole (FLZ)-resistant C. albicans. Combination therapy using natural compounds is a potential approach that can restore fluconazole's antifungal activity in azole-resistant isolates via efflux pump inhibition. This study aimed to evaluate the ability of celastrol, a natural triterpene, to retrieve FLZ antifungal activity against azole-resistant C. albicans in vitro and in vivo. Celastrol did not exhibit antifungal activity against the tested clinical isolates; however, the sub-MIC of celastrol inhibited rhodamine 6G (R6G) efflux and increased R6G accumulation inside celastrol-treated C. albicans cells. Synergy was spotted between celastrol and FLZ via a checkerboard assay. Quantification of m-RNA levels of efflux-mediated azole resistance genes within azole-resistant C. albicans demonstrated CDR1 overexpression. Upon celastrol treatment, a significant decline in ABC transporters transcript levels were detected. Moreover, molecular docking demonstrated that celastrol is a potential ABC efflux transporters blocker that successfully fits into target binding pockets. A negligible hemolytic effect of celastrol against human erythrocytes was observed. In the in vivo model of VVC, the combination of FLZ and celastrol in vaginal gel revealed a drastic reduction in the fungal burden with apparently normal vaginal tissue. Celastrol promising in vitro and in vivo findings strengthen its future use for the treatment of azole-resistant C. albicans.</p>","PeriodicalId":7537,"journal":{"name":"AMB Express","volume":"15 1","pages":"18"},"PeriodicalIF":3.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780038/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143063248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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