1
|
Venturini S, Reffo I, Avolio M, Basaglia G, Del Fabro G, Callegari A, Tonizzo M, Sabena A, Rondinella S, Mancini W, Conte C, Crapis M. The Management of Recurrent Urinary Tract Infection: Non-Antibiotic Bundle Treatment. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10141-y. [PMID: 37584833 DOI: 10.1007/s12602-023-10141-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2023] [Indexed: 08/17/2023]
Abstract
Recurrent urinary tract infections (rUTIs) are a common condition with high morbidity and negatively impact the quality of life. They account for approximately 25% of all antibiotic prescriptions and are a public health concern in an era of increasing multidrug-resistant organisms (MDROs). Several non-antibiotic treatment strategies have been tried to curb antimicrobial use, and many are effective to some degree, but no experience testing multimodal interventions. We created a "care bundle" consisting of behavioral interventions, vaginal and oral probiotics, D-mannose, and cranberry to be followed for six months. We enrolled women with rUTIs over three years. Changes in urinary tract infections, antibiotic use, chronic symptoms, and quality of life were compared in the six months before and after participation in the study. Forty-seven women were enrolled in the study, six of whom were excluded from the final analysis. We observed a 76% reduction in urinary tract infections (p < 0.001) and a reduction in total antibiotic exposure of more than 90% (p < 0.001); all chronic symptoms showed a trend toward reduction. Adherence to the bundle was high (87.2%). Overall, 80.5% of women experienced an improvement in their quality of life. In our experience, a bundle protocol is effective in reducing recurrences and antimicrobial use in a cohort of women with rUTIs and results in a subjective improvement in chronic symptoms and quality of life. Further research with larger sample size is needed to confirm these findings.
Collapse
Affiliation(s)
- Sergio Venturini
- Department of Infectious Diseases, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Ingrid Reffo
- Department of Anaesthesia and Intensive Care, ASFO Santa Maria dei Battuti Hospital of San Vito al Tagliamento (Pordenone), Pordenone, Italy.
| | - Manuela Avolio
- Department of Microbiology, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Giancarlo Basaglia
- Department of Microbiology, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Giovanni Del Fabro
- Department of Infectious Diseases, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Astrid Callegari
- Department of Infectious Diseases, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Maurizio Tonizzo
- Department of Internal Medicine, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Anna Sabena
- Department of Internal Medicine, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Stefania Rondinella
- Department of Internal Medicine, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Walter Mancini
- Department of Nephrology, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Carmina Conte
- Department of Nephrology, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| | - Massimo Crapis
- Department of Infectious Diseases, ASFO Santa Maria degli Angeli Hospital of Pordenone, Pordenone, Italy
| |
Collapse
|
2
|
Kumar S, Acharya C, Abhinav N, Jaisankar P. Novel Spirooxindole Derivatives as Potential Non‐Detergent Type Spermicides. ChemistrySelect 2022. [DOI: 10.1002/slct.202202210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shrabanti Kumar
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
| | - Chiranjit Acharya
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
| | - Nipun Abhinav
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
- Department of Natural Products National Institute of Pharmaceutical Education and Research Kolkata 700054 India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
| |
Collapse
|
3
|
Alfaiate MI, António Santos R, Silva AF, Sousa AP, Almeida-Santos T, Gendron C, Jabbour V, Mas Y, Verriere F, Ramalho-Santos J, Tavares RS. Comparative in vitro study on the local tolerance and efficacy of benzalkonium chloride, myristalkonium chloride and nonoxynol-9 as active principles in vaginal contraceptives. EUR J CONTRACEP REPR 2021; 26:334-342. [PMID: 33821738 DOI: 10.1080/13625187.2021.1900563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Spermicides have been identified as a potentially attractive alternative to hormonal contraceptives and/or intrauterine devices. Thus, this study aimed evaluating the efficacy and local tolerance of benzalkonium chloride (BKC) and myristalkonium chloride (MKC) contained in Pharmatex® vaginal formulations and compare them with nonoxynol-9 (N-9), the most common active ingredient in topical vaginal contraceptives. METHODS Human normozoospermic samples were assessed for motility, viability, acrosome status and penetration ability after exposure to control, N-9 or different BKC and MKC doses for 0 and 10 minutes. Local tolerance on HeLa cells was evaluated by the Trypan-blue and MTT assays. RESULTS Exposure to BKC and MKC reduced acrosome integrity while promoting total immobilisation and complete loss of sperm viability (p < .001, n = 15). Both compounds also compromised sperm penetration ability upon exposure (p < .001, n = 15). N-9 induced the same outcomes (p < .001, n = 15); nevertheless, it was more toxic to HeLa cells than BKC and MKC (p < .05, n = 14). CONCLUSIONS BKC and MKC present strong in vitro spermicidal activity at lower doses than N-9 and were better tolerated after immediate exposure than N-9. Available Pharmatex® galenic formulations were as effective as products based on N-9.
Collapse
Affiliation(s)
- Maria Inês Alfaiate
- Biology of Reproduction and Stem Cells Group, CNC- Center for Neuroscience and Cell Biology, CIBB, Polo III, Azinhaga Santa Comba, University of Coimbra, Coimbra, Portugal
| | - Rita António Santos
- Biology of Reproduction and Stem Cells Group, CNC- Center for Neuroscience and Cell Biology, CIBB, Polo III, Azinhaga Santa Comba, University of Coimbra, Coimbra, Portugal
| | - Andreia Filipa Silva
- Biology of Reproduction and Stem Cells Group, CNC- Center for Neuroscience and Cell Biology, CIBB, Polo III, Azinhaga Santa Comba, University of Coimbra, Coimbra, Portugal.,University of Coimbra, IIIUC, Casa Costa Alemão, Coimbra, Portugal
| | - Ana Paula Sousa
- Biology of Reproduction and Stem Cells Group, CNC- Center for Neuroscience and Cell Biology, CIBB, Polo III, Azinhaga Santa Comba, University of Coimbra, Coimbra, Portugal.,Reproductive Medicine Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Teresa Almeida-Santos
- Reproductive Medicine Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | | | | | - Yana Mas
- Laboratoire Innotech International, Arcueil, France
| | | | - João Ramalho-Santos
- Biology of Reproduction and Stem Cells Group, CNC- Center for Neuroscience and Cell Biology, CIBB, Polo III, Azinhaga Santa Comba, University of Coimbra, Coimbra, Portugal.,Department of Life Sciences, Calçada Martim de Freitas, University of Coimbra, Coimbra, Portugal
| | - Renata Santos Tavares
- Biology of Reproduction and Stem Cells Group, CNC- Center for Neuroscience and Cell Biology, CIBB, Polo III, Azinhaga Santa Comba, University of Coimbra, Coimbra, Portugal.,University of Coimbra, IIIUC, Casa Costa Alemão, Coimbra, Portugal
| |
Collapse
|
4
|
Bártolo I, Diniz AR, Borrego P, Ferreira JP, Bronze MR, Barroso H, Pinto R, Cardoso C, Pinto JF, Diaz RC, Broncano PG, Muñoz-Fernández MA, Taveira N. Evaluation of the fusion inhibitor P3 peptide as a potential microbicide to prevent HIV transmission in women. PLoS One 2018; 13:e0195744. [PMID: 29668740 PMCID: PMC5905968 DOI: 10.1371/journal.pone.0195744] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 03/28/2018] [Indexed: 01/22/2023] Open
Abstract
Microbicides are an important strategy for preventing the sexual transmission of HIV but, so far, the most advanced tenofovir-based microbicides have had modest efficacy. This has been related to adherence problems and high prevalence of tenofovir-resistant HIV-1 strains. P3 is a new peptide with potent activity against HIV that may be a good microbicide candidate. In this work P3 was formulated in a gel of hydroxyethyl cellulose and its activity, stability and safety profile in Balb/c mice were evaluated. HIV infection was fully blocked by a 1.5% gel containing P3 at the IC90 (366.4 nM) concentration. The antiviral activity did not change at 4°C during 4 months and at 25, 37 and 65°C for 1 week. P3 was stable and fully functional at acidic pH up to 24h, under different concentrations of hydrogen peroxide and in the presence of genital fluids up to 48h. P3 had no antibacterial activity and did not affect sperm motility and vitality. Finally, P3 didn't cause significant alterations in the vaginal epithelium of Balb/c mice at 0.06 (456.8 μM) and 0.2 mg/day (1522.7 μM) doses. These findings indicate that P3 is an excellent candidate for further development as a microbicide gel for the prevention of HIV transmission in women.
Collapse
Affiliation(s)
- Inês Bártolo
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
| | - Ana Rita Diniz
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
| | - Pedro Borrego
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
- Centro de Administração e Políticas Públicas (CAPP), Instituto Superior de Ciências Sociais e Políticas (ISCSP) da Universidade de Lisboa, Lisboa, Portugal
| | - João Pedro Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
| | - Maria Rosário Bronze
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
| | - Helena Barroso
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Superior de Ciências da Saúde Egas Moniz, Caparica, Portugal
| | - Rui Pinto
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
- Laboratório de Análises Clínicas Dr. Joaquim Chaves, Joaquim Chaves Saúde, Miraflores-Algés, Portugal
| | - Carlos Cardoso
- Laboratório de Análises Clínicas Dr. Joaquim Chaves, Joaquim Chaves Saúde, Miraflores-Algés, Portugal
| | - João F. Pinto
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
| | - Rafael Ceña Diaz
- Laboratorio InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón. Spanish HIV-HGM Biobank, Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Pilar Garcia Broncano
- Laboratorio InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón. Spanish HIV-HGM Biobank, Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Maria Angel Muñoz-Fernández
- Laboratorio InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón. Spanish HIV-HGM Biobank, Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Nuno Taveira
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal
- Centro de Administração e Políticas Públicas (CAPP), Instituto Superior de Ciências Sociais e Políticas (ISCSP) da Universidade de Lisboa, Lisboa, Portugal
- * E-mail:
| |
Collapse
|
5
|
Singh O, Garg T, Rath G, Goyal AK. Microbicides for the Treatment of Sexually Transmitted HIV Infections. JOURNAL OF PHARMACEUTICS 2014; 2014:352425. [PMID: 26556193 PMCID: PMC4590794 DOI: 10.1155/2014/352425] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 12/20/2013] [Accepted: 12/26/2013] [Indexed: 12/20/2022]
Abstract
Approximately 34 million people were living with human immunodeficiency virus (HIV-1) at the end of 2011. From the last two decades, researchers are actively involved in the development of an effective HIV-1 treatment, but the results intended are still doubtful about the eradication of HIV. The HIV-1 virus has gone from being an "inherently untreatable" infectious agent to the one liable to be affected by a range of approved therapies. Candidate microbicides have been developed to target specific steps in the process of viral transmission. Microbicides are self-administered agents that can be applied to vaginal or rectal mucosal surfaces with the aim of preventing, or reducing, the transmission of sexually transmitted infections (STIs) including HIV-1. The development of efficient, widely available, and low-cost microbicides to prevent sexually transmitted HIV infections should be given high priority. In this review, we studied the various forms of microbicides, their mechanism of action, and their abundant approaches to control the transmission of sexually transmitted infections (STIs).
Collapse
Affiliation(s)
- Onkar Singh
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab 142001, India
| | - Tarun Garg
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab 142001, India
| | - Goutam Rath
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab 142001, India
| | - Amit K. Goyal
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab 142001, India
| |
Collapse
|
6
|
Jain A, Kumar L, Kushwaha B, Sharma M, Pandey A, Verma V, Sharma V, Singh V, Rawat T, Sharma VL, Maikhuri JP, Gupta G. Combining a synthetic spermicide with a natural trichomonacide for safe, prophylactic contraception. Hum Reprod 2013; 29:242-52. [DOI: 10.1093/humrep/det423] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
7
|
Damke E, Tsuzuki JK, Chassot F, Cortez DAG, Ferreira ICP, Mesquita CSS, da-Silva VRS, Svidzinski TIE, Consolaro MEL. Spermicidal and anti-Trichomonas vaginalis activity of Brazilian Sapindus saponaria. Altern Ther Health Med 2013; 13:196. [PMID: 23890053 PMCID: PMC3728232 DOI: 10.1186/1472-6882-13-196] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Accepted: 07/25/2013] [Indexed: 11/30/2022]
Abstract
Background Sapindus saponaria is used traditionally for curing ulcers, external wounds and inflammations. The spermicidal and anti-Trichomonas activity of S. saponaria and its effect on Lactobacillus acidophilus were evaluated. Methods Water-ethanol (WE) and butanolic (BE) extracts, as well as a purified sample of saponins (SP) from S. saponaria were tested for spermicidal and anti-Trichomonas activity and for their effect on L. acidophilus. Results WE, BE and SP immobilized spermatozoa at a minimum effective concentration (MEC) of 2.5 (gram %) for extracts and 1.25 (gram %) for SP. The effective concentrations that caused 50% immobilization of spermatozoa (EC50) were 0.5 (gram %) for WE and SP, and 0.1 (gram %) for BE. The compounds were effective against Trichomonas vaginalis (Minimum Inhibitory Concentration = 0.156 mg/mL for WE and BE, and 0.078 mg/mL for SP against a clinical strain (CS); and 0.312, 0.156 and 0.078 mg/mL for WE, BE and SP, respectively, against an ATCC strain). In all concentrations tested, the growth of L. acidophilus was not reduced. Conclusion The in vitro study proved the spermicidal and anti-Trichomonas activity of S. saponaria. Complementary in vivo studies should be made for establish the use as a vaginal spermicide, particularly in Brazil and Latin America.
Collapse
|
8
|
Löwy I. 'Sexual chemistry' before the pill: science, industry and chemical contraceptives, 1920-1960. BRITISH JOURNAL FOR THE HISTORY OF SCIENCE 2011; 44:245-274. [PMID: 21879607 DOI: 10.1017/s0007087410000762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The history of contraceptives met the history of drugs long before the invention of the contraceptive pill. In the first half of the twentieth century, numerous pharmaceutical laboratories, including major ones, manufactured and marketed chemical contraceptives: jellies, suppositories, creams, powders and foams applied locally to prevent conception. Efforts to put an end to the marginal status of these products and to transform them into 'ethical' drugs played an important role in the development of standardized laboratory tests of efficacy of contraceptive preparations; debates on the validity of such tests; evaluation of the long-term toxicity of chemical compounds; and the rise of collaborations between activists, non-profit organizations and the pharmaceutical industry. Chemical contraceptives were initially associated with quack medicine, shady commercial practices and doubtful morality. Striving to change the status of contraceptives and to promote safe and efficient products that reduced fertility in humans shaped some of the key features of the present-day production and regulation of pharmaceuticals.
Collapse
Affiliation(s)
- Ilana Löwy
- CERMES (INSERM, CNRS, EHESS), 7 rue Guy Moquet, 94801 Vuillejuif cedex, France.
| |
Collapse
|
9
|
Hoel N, Shaikh S, Kagee A. Muslim women's reflections on the acceptability of vaginal microbicidal products to prevent HIV infection. ETHNICITY & HEALTH 2011; 16:89-106. [PMID: 21328113 DOI: 10.1080/13557858.2010.539196] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This paper examines South African Muslim women's opinions of the acceptability of microbicidal products to prevent HIV infection if these were to become available in the future. In the context of the HIV pandemic, prophylactic methods such as male circumcision, vaccines and microbicidal preparations are increasingly thought of as ways to reduce the incidence of infection. We examine the extent to which participants' religious beliefs and the implications of religious norms and ideals might influence decision-making concerning hypothetical acceptability to use a microbicide. We conducted qualitative interviews with 29 Muslim women residing in South Africa, a country with one of the highest HIV prevalence rates in the world. Four themes emerged from the data, namely, (1) participants' questioning of the need for microbicides; (2) reasons they gave in favour of microbicide use; (3) the juxtaposition of microbicide use and religious ethics; and (4) the role of religious authorities in decision-making regarding microbicide use. The juxtaposition of microbicide use and religious ethics was further informed by three sub-themes, namely, the life-promoting nature of both Islam and microbicide use, the possibility that microbicide use could encourage sexual risk-taking among male partners, and that the use of these products contradicted womens' notions of ethical agency and ideals about marriage. These themes and sub-themes are analysed in the context of gender relations among South African Muslims. The study findings are significant in light of recent data showing the effectiveness of a microbicidal preparation in reducing the risk of HIV infection in South Africa. We also show that the acceptability of microbicidal products is to a certain extent linked to a variety of religious persuasions and ideals. When microbicides become available in the future, proponents of their use will need to consider religious reasoning of potential users, including that of Muslim women.
Collapse
Affiliation(s)
- Nina Hoel
- Department of Religious Studies, University of Cape Town, Cape Town, South Africa
| | | | | |
Collapse
|
10
|
Das N, Chandran P, Chakraborty S. Potent spermicidal effect of oleanolic acid 3-beta-D-glucuronide, an active principle isolated from the plant Sesbania sesban Merrill. Contraception 2010; 83:167-75. [PMID: 21237343 DOI: 10.1016/j.contraception.2010.05.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Revised: 05/12/2010] [Accepted: 05/12/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND The spermicidal activity of oleanolic acid 3-β-D-glucuronide (OAG), an active principle isolated from root extracts of Sesbania sesban, was evaluated. STUDY DESIGN Under the Sander-Cramer test criteria, the sperm-immobilizing activity of OAG was studied using highly motile rat sperm. Sperm mortality and membrane integrity were assessed by supravital staining, hypo-osmotic swelling (HOS), transmission electron microscopy (TEM) and sperm membrane lipid peroxidation (LPO). In vitro microbicidal potential and hemolytic index of OAG were examined in Lactobacillus culture and rat red blood corpuscles (RBCs), respectively. Post-intravaginal OAG application, the in vivo contraceptive efficacy was evaluated in rats. Ames test determined the carcinogenic potential of OAG. RESULTS The minimum effective concentration (MEC) of OAG was 50 mcg/mL. More than 97% of the OAG-treated sperm lost their HOS responsiveness in a dose-dependent manner. TEM and LPO revealed that OAG affected the sperm membrane integrity. OAG declined fertility to zero, was nonmutagenic and was not harmful to lactobacillus. CONCLUSION OAG has significant spermicidal activity that may be explored further.
Collapse
Affiliation(s)
- Nilanjana Das
- Reproductive Biology Research Department, Cell-Biology and Physiology Division, Indian Institute of Chemical Biology (A Unit of CSIR), Kolkata-700 032, India
| | | | | |
Collapse
|
11
|
Saha P, Majumdar S, Pal D, Pal BC, Kabir SN. Evaluation of spermicidal activity of MI-saponin A. Reprod Sci 2010; 17:454-64. [PMID: 20220105 DOI: 10.1177/1933719110361378] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The seed extracts of Madhuca latifolia were reported to have spermicidal activity. The current investigation identified the spermicidal component of the extracts and evaluated its spermicidal potential in vitro. As characterized by infrared, mass, and nuclear magnetic resonance (NMR) spectral analyses, Mi-saponin A (MSA) was found to be the most potent component among a mixture of saponins. The mean effective concentrations of MSA that induced irreversible immobilization were 320 microg/mL for rat and 500 microg/mL for human sperm, as against the respective concentrations of 350 and 550 microg/mL of nonoxynol 9 (N-9). The mode of spermicidal action was evaluated by a battery of tests including (a) double fluoroprobe staining for sperm viability, (b) hypoosmotic swelling test and, assays for 5' nucleotidase and acrosin for physiological integrity of sperm plasma membrane, (c) scanning and transmission electron microscopy for sperm membrane ultrastructure, and (d) plasma membrane lipid peroxidation (LPO). The observations, taken together, were interpreted to mean that the spermicidal effect of MSA involved increased membrane LPO leading to structural and functional disintegration of sperm plasma membrane and acrosomal vesicle. A comparative in vitro cytotoxicity study in human vaginal keratocyte (Vk2/E6E7) and endocervical (End/E6E7) cell lines demonstrated that the 50% cell cytotoxicity (CC(50)) values, and consequently the safety indices, for MSA were >or= 8-fold higher as compared to those of N-9. In conclusion, MSA is a potent spermicidal molecule that may be explored further for its suitability as an effective component of vaginal contraceptive.
Collapse
Affiliation(s)
- P Saha
- Department of Reproductive Biology, Indian Institute of Chemical Biology (Council of Scientific and Industrial Research), Kolkata, India
| | | | | | | | | |
Collapse
|
12
|
Chen CY, Kuo PL, Chen YH, Huang JC, Ho ML, Lin RJ, Chang JS, Wang HM. Tyrosinase inhibition, free radical scavenging, antimicroorganism and anticancer proliferation activities of Sapindus mukorossi extracts. J Taiwan Inst Chem Eng 2010. [DOI: 10.1016/j.jtice.2009.08.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
13
|
Batár I. State-of-the-art of non-hormonal methods of contraception: II. Chemical barrier contraceptives. EUR J CONTRACEP REPR 2010; 15:89-95. [DOI: 10.3109/13625180903462326] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
14
|
Abstract
Ever since ancient civilizations, the possibility of preventing unwanted pregnancies has always been the subject of interest. All available contraception methods have both advantages and disadvantages, and it is up to the doctor and the patient to make a rational choice in each individual case. Many methods for temporary prevention of unwanted pregnancy are used for the purpose of contraception, as well as sterilization, as a permanent method. A large variety of contraceptives offers opting for the most suitable method for each patient, with the highest level of efficiency and safety. With their adequate administration, the rate of unwanted pregnancies should be significantly minimized. Methods used for contraception are constantly improving and simultaneously, new and more efficient ones are being developed. The research in the field of contraceptives is not completed yet and hopefully, in the future, we shall be closer to finding available, efficient, user-friendly medicaments in the prevention of pregnancy and sexually transmitted diseases, with minimum side effects, which is on the verge of perfection. Novelties in the field of contraception must be the theme of continuous medical education of gynaecologists, so that they could provide the right information and give advice to their patients in choosing the most adequate contraceptive.
Collapse
|
15
|
Lakshmi V, Saxena A, Mishra SK, Raghubir R, Srivastava MN, Jain RK, Maikhuri JP, Gupta G. Spermicidal Activity of Bivittoside D from Bohadschia vitiensis. Arch Med Res 2008; 39:631-8. [DOI: 10.1016/j.arcmed.2008.06.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Accepted: 06/19/2008] [Indexed: 11/26/2022]
|
16
|
Reiff M, Wade C, Chao MT, Kronenberg F, Cushman LF. Health practices and vaginal microbicide acceptability among urban black women. J Womens Health (Larchmt) 2008; 17:1345-51. [PMID: 18788991 PMCID: PMC2944437 DOI: 10.1089/jwh.2008.0886] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Intravaginal topical microbicides are being investigated for prevention of HIV transmission. Use of vaginal microbicides will constitute a new type of practice, occurring in the context of other vaginal practices related to contraception, hygiene, and self-care, which are affected by cultural norms and personal beliefs. Given the high rate of HIV infection among black women, research on practices and decision making relevant to microbicide acceptability is needed in this population. METHODS Twenty-three black women in New York City, aged 25-64, completed in-person semistructured interviews and self-administered questionnaires. Quantitative analyses examined vaginal practices and willingness to use microbicides. Qualitative analyses explored underlying decision-making processes involved in choices regarding vaginal practices and general healthcare. RESULTS Willingness to use vaginal products for HIV prevention was high, especially among more educated women. Safety was a major concern, and women were cautious about using vaginal products. Whereas some viewed synthetic products as having potentially harmful side effects, others perceived natural products as risky because of insufficient testing. Choices about vaginal practices were affected by assessments of risk and efficacy, prior experience, cultural background, and general approach to healthcare. CONCLUSIONS The majority of women in the sample expressed willingness to use a vaginal product for HIV prevention. Decision-making processes regarding vaginal practices were complex and were affected by social, cultural, and personal factors. Although specific preferences may vary, attitudes toward using a vaginal product are likely to be positive when side effects are minimal and the product is considered safe.
Collapse
Affiliation(s)
- Marian Reiff
- The Richard and Hinda Rosenthal Center for Complementary and Alternative Medicine Department of Rehabilitation Medicine, College Physicians & Surgeons, Columbia University, New York, New York, USA.
| | | | | | | | | |
Collapse
|
17
|
Elkins CA, Muñoz ME, Mullis LB, Stingley RL, Hart ME. Lactobacillus-mediated inhibition of clinical toxic shock syndrome Staphylococcus aureus strains and its relation to acid and peroxide production. Anaerobe 2008; 14:261-7. [PMID: 18926917 DOI: 10.1016/j.anaerobe.2008.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Revised: 08/01/2008] [Accepted: 08/04/2008] [Indexed: 11/29/2022]
Abstract
The inhibitory activities of 39 strains representing 20 different species of Lactobacillus toward a menstrual toxic shock syndrome (TSS) Staphylococcus aureus archetype strain MN8 were investigated. Nearly every strain (38 of 39) produced an inhibitory effect under both aerobic and anaerobic conditions when assayed on agar medium. In addition, the MN8 inhibition was conserved against at least 10 other clinical TSS S. aureus isolates and, interestingly, required actively growing cultures of Lactobacillus (verified with a two-well co-culture system in broth medium). This general uniform inhibition could be ameliorated by organic buffer (PIPES) supplied in the growth medium and, with only one exception, MRS medium adjusted with non-organic acid (HCl) failed to support growth of TSS strains at or below pH 5.5. By comparison, the vast majority of lactobacilli in this study decreased culture pH to a range of 4-5. Hydrogen peroxide production by the lactobacilli was also assessed and verified by two different methodologies revealing a broad spectrum of phenotypes that, contrary to reports touting its effectiveness, did not seem to correspond with our inhibition studies. Furthermore, resistances to peroxide by MN8, other TSS strains, and a subset of lactobacilli used in this study were nearly identical whereas the S. aureus collection was slightly more sensitive to racemic lactic acid than the lactobacilli. Collectively, these data suggest that the underlying inhibition toward Staphylococcus is generally conserved in Lactobacillus sp. and is related to a common factor in this genus involving promotion of acidic conditions.
Collapse
Affiliation(s)
- Christopher A Elkins
- Division of Microbiology, National Center for Toxicological Research, United States Food and Drug Administration, 3900 NCTR Drive, Jefferson, AR 72079-9502, USA.
| | | | | | | | | |
Collapse
|
18
|
Dwivedi AK, Sharma VL, Kumaria N, Kiran Kumar STVS, Srivastava PK, Ansari AH, Maikhuri JP, Gupta G, Dhar JD, Roy R, Joshi BS, Shukla PK, Kumar M, Singh S. Synthesis of disulfide esters of dialkylaminocarbothioic acid as potent, non-detergent spermicidal agents. Bioorg Med Chem 2007; 15:6642-8. [PMID: 17765548 DOI: 10.1016/j.bmc.2007.08.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2007] [Revised: 08/09/2007] [Accepted: 08/14/2007] [Indexed: 11/22/2022]
Abstract
S,S'-[disulfanediylbis(dialkylaminopropane-2,1-diyl)]bis- (dialkylaminothiocarbamate) (14-31) were prepared and evaluated for the spermicidal activity and antifungal activity. Dialkyldithiocarbamates (1-5) were reacted with epichlorohydrin to give 1-dialkylaminocarbothioic acid S-[(2,3-epithio)propyl]ester (7-11), these on further reaction with a secondary amine gave S,S'-[disulfanediylbis(dialkylaminopropane-2,1-diyl)]bis- (dialkylaminothiocarbamate) (14-31). Some of these compounds (16, 19-21, 23, 30, 31) were found to be very potent spermicidal agents with marginal antifungal activity. Two compounds (20, 21) were 25 times more active than nonoxynol-9 (N-9), the spermicide currently in the market.
Collapse
|
19
|
Affiliation(s)
- Sam Rowlands
- Warwick Medical School, Gibbet Hill Campus, University of Warwick, Coventry CV4 7AL, UK.
| |
Collapse
|
20
|
Abstract
This article is the fourth in a series of articles on sexuality and sexual health.
Collapse
Affiliation(s)
- Sam Rowlands
- Warwick Medical School, Gibbet Hill Campus, University of Warwick, Coventry CV4 7AL, UK.
| |
Collapse
|
21
|
Jain RK, Maikhuri JP, Kiran Kumar STVS, Sharma VL, Dwivedi AK, Mitra K, Bajpai VK, Gupta G. Novel disulphide esters of carbothioic acid as potent, non-detergent spermicides with low toxicity to Lactobacillus and HeLa cells in vitro. Hum Reprod 2006; 22:708-16. [PMID: 17114195 DOI: 10.1093/humrep/del448] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The design, synthesis, characterization and evaluation of a novel series of non-detergent spermicides has led to the discovery of two unique molecules (DSE-36 and DSE-37) that were approximately 25 times more potent spermicides than nonoxynol-9 (N-9). METHODS Normal human spermatozoa were used to assess the spermicidal activity (Sander-Cramer Assay), the effect on sperm-membrane integrity [hypo-osmotic swelling test (HOST)], supravital staining and scanning electron microscopy (SEM) and the induction of apoptosis [fluorescein isothiocyanate (FITC) Annexin-V and JC-1 labelling using flow cytometry] by the new class of compounds. HeLa and Lactobacillus cultures were used to assess the cytotoxicity of compounds and their compatibility to normal vaginal flora, respectively. RESULTS Compounds DSE-36 and DSE-37 exhibited a strong spermicidal activity [minimum effective concentration (MEC) = 0.002%], which was approximately 25 times more potent than that of N-9 and Sapindus saponins (MEC = 0.05%). As compared with surfactants, DSE-36 and DSE-37 were found to be safer at MEC towards the growth and survival of Lactobacilli and HeLa cells in vitro and to have a milder effect on sperm plasma membrane. At EC(50) both induced apoptosis in sperm cells as characterized by increased labelling with Annexin-V and decreased polarization of sperm mitochondria. CONCLUSION Preliminary studies have revealed that in sharp contrast to the non-specific surfactant action of N-9, DSE-36 and DSE-37 have a highly potent, mechanism-based, detrimental action on human sperm. The unique ability of these non-detergent molecules to selectively kill sperm and spare Lactobacilli and HeLa cells at MEC values much lower than that required for N-9 indicates their potential as superior ingredients for formulation into microbicidal contraceptives.
Collapse
Affiliation(s)
- R K Jain
- Division of Endocrinology, Central Drug Research Institute, Lucknow, Uttar Padesh, India
| | | | | | | | | | | | | | | |
Collapse
|
22
|
Kiran Kumar STVS, Sharma VL, Kumar M, Shukla PK, Tiwari P, Jain RK, Maikhuri JP, Singh D, Gupta G, Singh MM. Synthesis of benzenepropanamine analogues as non-detergent spermicides with antitrichomonas and anticandida activities. Bioorg Med Chem 2006; 14:6593-600. [PMID: 16793275 DOI: 10.1016/j.bmc.2006.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 06/01/2006] [Accepted: 06/02/2006] [Indexed: 10/24/2022]
Abstract
Fifteen analogues of benzenepropanamine were synthesized and evaluated for their spermicidal as well as microbicidal activities against Trichomonas vaginalis and Candida spp. Several compounds showed appreciable dual activities. Compound 12 exhibited good spermicidal (MEC=0.1%) along with substantial anticandidal (MIC=0.05%) activities, while compounds 3 and 6 showed significant microbicidal activities with moderate spermicidal effect. The SAR of these structures is being discussed here in this communication. It is concluded that suitable structural modifications in this class of compounds at 3-amino position may lead to a potent spermicide with associated microbicidal activity.
Collapse
Affiliation(s)
- S T V S Kiran Kumar
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, Lucknow 226001, India
| | | | | | | | | | | | | | | | | | | |
Collapse
|